national list of vascular plant species that occur in wetlands

National List of Vascular Plant Species that Occur in Wetlands: 1996 National SummaryIndicator by Region and SubregionScientific Name/ Subregion Northeast Southeast

North Central

North Plains

Central Plains

South Plains Southwest

Inter-mountain Northwest California Alaska Caribbean Hawaii

National Indicator Range

Abies amabilis (Dougl. ex Loud.) Dougl. ex Forbes FACU FACU UPL UPL,FACU

Abies balsamea (L.) P. Mill. FAC FACW FAC,FACW

Abies concolor (Gord. & Glend.) Lindl. ex Hildebr. NI NI NI NI NI UPL UPL

Abies fraseri (Pursh) Poir. FACU FACU FACU

Abies grandis (Dougl. ex D. Don) Lindl. FACU-* NI FACU-*

Abies lasiocarpa (Hook.) Nutt. NI NI FACU+ FACU- FACU FAC UPL UPL,FAC

Abies magnifica A. Murr. NI UPL NI FACU UPL,FACU

Abildgaardia ovata (Burm. f.) Kral FACW+ FAC+ FAC+,FACW+

Abutilon theophrasti Medik. UPL FACU- FACU- UPL UPL UPL UPL UPL NI NI UPL,FACU-

Acacia choriophylla Benth. FAC* FAC*

Acacia farnesiana (L.) Willd. FACU NI NI* NI NI FACU

Acacia greggii Gray UPL UPL FACU FACU UPL,FACU

Acacia macracantha Humb. & Bonpl. ex Willd. NI FAC FAC

Acacia minuta ssp. minuta (M.E. Jones) Beauchamp FACU FACU

Acaena exigua Gray OBL OBL

Acalypha bisetosa Bertol. ex Spreng. FACW FACW

Acalypha virginica L. FACU- FACU- FAC- FACU- FACU- FACU* FACU-,FAC-

Acalypha virginica var. rhomboidea (Raf.) Cooperrider FACU- FAC- FACU FACU- FACU- FACU* FACU-,FAC-

Acanthocereus tetragonus (L.) Humm. FAC* NI NI FAC*

Acanthomintha ilicifolia (Gray) Gray FAC* FAC*

Acanthus ebracteatus Vahl OBL OBL

Acer circinatum Pursh FAC- FAC NI FAC-,FAC

Acer glabrum Torr. FAC FAC FAC FACU FACU* FAC FACU FACU*,FAC

Acer grandidentatum Nutt. NI NI NI FACU NI FACU

Acer macrophyllum Pursh FACU FAC FACU,FAC

Acer negundo L. FAC+ FACW FACW- FAC FAC FACW- FACW- FAC* FAC+ FACW FAC*,FACW

Acer nigrum Michx. f. FACU* UPL NI NI NI UPL,FACU*

Acer pensylvanicum L. FACU FACU- FACU FACU-,FACU

Acer platanoides L. UPL NI NI UPL,FACU*

Great Lakes Plain FACU*

Acer rubrum L. FAC FAC FAC FAC FAC,FACW

Coastal Plain FACW

March 3, 1997 of 209Ecology Section - National Wetlands Inventory - US Fish and Wildlife Service

Scientific Name/ Subregion Northeast Southeast

North Central

North Plains

Central Plains




Acer rubrum var. drummondii (Hook. & Arn. ex Nutt.) Sarg. FACW+ OBL OBL FACW FACW,OBL

Acer rubrum var. trilobum Torr. & Gray ex K. Koch FACW+ OBL FACW FACW* FACW*,OBL

Acer saccharinum L. FACW FACW FACW FACW FACW FAC FAC,FACW

Acer saccharum Marsh. FACU- FACU- FACU FACU FACU UPL UPL,FACU

Acer spicatum Lam. FACU- UPL FACU* UPL,FACU*

Achillea millefolium L. FACU FACU FACU FACU FACU FACU FACU FACU FACU FACU FACU UPL UPL,FACU

Achyrachaena mollis Schauer NI FAC* FAC*

Acisanthera quadrata Pers. OBL OBL

Acmella iodiscaea (A.H. Moore) R.K. Jansen OBL OBL

Acmella oppositifolia var. repens (Walt.) R.K. Jansen FACW FACW+ FACW FACW,FACW+

Acnistus arborescens (L.) Schlecht. FAC- FAC-

Acoelorraphe wrightii (Griseb. & H. Wendl.) H. Wendl. ex Becc. OBL OBL

Aconitum columbianum Nutt. NI FACW FACW FACW FACW FACW FACW FACW

Aconitum delphiniifolium DC. FAC FAC

Acorus americanus (Raf.) Raf. NI NI OBL OBL OBL OBL OBL OBL OBL OBL OBL

Acorus calamus L. OBL OBL OBL

Acronychia heterophylla Gray FACU FACU

Acrostichum aureum L. OBL OBL OBL OBL

Acrostichum danaeifolium Langsd. & Fisch. OBL OBL OBL

Actaea pachypoda Ell. UPL FACU NI NI NI UPL,FACU

Actaea rubra (Ait.) Willd. UPL NI NI NI NI FAC- NI FACU* FAC* UPL,FAC*

Actinostachys pennula (Sw.) Hook. FAC FAC+ FAC,FAC+

Adenophorus tamariscinus (Kaulfuss) Hook. & Grev. FACU FACU

Adenophorus tripinnatifidus Gaud. FACU FACU

Adenostemma lavenia (L.) Kuntze FACW FACW

Adenostemma verbesina (L.) Schultz-Bip. FACW FACW

Adiantum aleuticum (Rupr.) Paris NI NI NI NI FAC FAC FAC FAC FAC FAC

Adiantum capillus-veneris L. FACU FACU FACU FACW NI FACW+ FACW+ FACW FACW FACW FACU FACU,FACW+

Adiantum jordanii C. Muell. NI FAC FAC

Adiantum latifolium Lam. FAC FAC

Adiantum macrophyllum Sw. NI FACW FACW

Adiantum melanoleucum Willd. NI UPL UPL

Adiantum obliquum Willd. FAC- FAC-

Adiantum pedatum L. FAC- FACU FAC- FAC FAC FAC NI NI FACU,FAC

Adiantum petiolatum Desv. FAC FAC

Adiantum pulverulentum L. FACU- FACU-



North Central

North Plains

Central Plains




Adiantum tenerum Sw. FAC FACU- FACU-,FAC

Adiantum tetraphyllum Humb. & Bonpl. ex Willd. NI UPL UPL

Adiantum tricholepis Fée FAC FAC

Adiantum wilsonii Hook. FAC FAC

Adoxa moschatellina L. FAC* FAC FAC NI FAC* FACU FAC- FAC FACU,FAC

Aegopodium podagraria L. FACU FACW FAC NI FACU,FACW

Aeschynomene americana L. NI FAC FAC FAC FAC

Aeschynomene evenia C. Wright NI FAC* FAC FAC*,FAC

Aeschynomene gracilis Vogel FAC FAC

Aeschynomene indica L. FACW+ NI FACW NI FACW FACW,FACW+

Aeschynomene pratensis Small OBL OBL

Aeschynomene sensitiva Sw. NI OBL OBL

Aeschynomene virginica (L.) B.S.P. OBL FACW FACW,OBL

Aesculus flava Ait. NI FACU NI FACU

Aesculus glabra Willd. FACU+ FACU FAC+ NI FAC FAC- NI FACU,FAC+

Aesculus glabra var. arguta (Buckl.) B.L. Robins. NI NI NI FACU- FACU-

Aesculus pavia L. FAC FAC FAC+ FAC- FAC-,FAC+

Aesculus sylvatica Bartr. FAC FAC FAC

Agalinis aphylla (Nutt.) Raf. FACW FACW

Agalinis aspera (Dougl. ex Benth.) Britt. FACU FACU- FACU FACU FAC FACU-,FAC

Agalinis divaricata (Chapman) Pennell FACU FACU

Agalinis fasciculata (Ell.) Raf. FAC FAC+ FAC FACW FAC FACU FACU,FACW

Agalinis filicaulis (Benth.) Pennell FAC+ FAC+

Agalinis filifolia (Nutt.) Raf. FACU FACU

Agalinis heterophylla (Nutt.) Small ex Britt. FACU+ FAC FAC+ FAC FACU+,FAC+

Agalinis linifolia (Nutt.) Britt. FACW FACW FACW

Agalinis maritima (Raf.) Raf. FACW+ OBL OBL FACW+,OBL

Agalinis obtusifolia Raf. FACU FAC FACU,FAC

Agalinis oligophylla Pennell FAC FAC* FAC*,FAC

Agalinis paupercula (Gray) Britt. FACW+ OBL FACW+,OBL

Agalinis pinetorum Pennell FAC+ FAC+

Agalinis pulchella Pennell FACW- FAC* FAC*,FACW-

Agalinis purpurea (L.) Pennell FACW- FACW FACW FACW FAC NI FAC,FACW

Agalinis tenuifolia (Vahl) Raf. FAC FACU FACW FACW FACW FAC- FAC NI NI FACU,FACW

Agarista populifolia (Lam.) Judd OBL OBL

Agastache nepetoides (L.) Kuntze FACU FAC FACU FAC FAC FAC FACU,FAC



North Central

North Plains

Central Plains




Agastache urticifolia (Benth.) Kuntze NI NI NI NI FACU* FACU*

Ageratina adenophora (Spreng.) King & H.E. Robins. NI FACU FACU

Ageratina altissima (L.) King & H.E. Robins. FACU- FACU- FACU FACU FACU UPL UPL,FACU

Ageratina jucunda (Greene) Clewell & Woot. FACU* FACU*

Ageratina riparia (Regel) King & H.E. Robins. FACU FACU

Ageratum conyzoides L. NI FACU FACU NI FAC- FAC* FACU,FAC*

Ageratum houstonianum P. Mill. NI FACU NI FACU

Aglaia ponapensis Kanehira FACU FACU

Agoseris aurantiaca (Hook.) Greene NI NI FAC FACU FACU FAC FAC FACU,FAC

Agoseris elata (Nutt.) Greene NI FACU FAC FAC FACU,FAC

Agoseris glauca (Pursh) Raf. FACU FAC FACU FAC FACU FAC- FAC FAC FACU,FAC

Agoseris lackschewitzii D. Henderson & R. Moseley NI NI

Agrimonia gryposepala Wallr. FACU FACU FACU+ FAC FAC FACW- NI NI* FACU,FACW-

Agrimonia parviflora Ait. FACW FAC FAC+ FAC FAC FACW FAC,FACW

Agrimonia rostellata Wallr. FACU FAC FACU FACU FAC- FACU,FAC

Agrimonia striata Michx. FACU- UPL FAC- FACU FACU FACU* FAC- FAC FACU* UPL,FAC

Agrostis aequivalvis (Trin.) Trin. OBL OBL* OBL*,OBL

Agrostis alascana Hultén OBL OBL

Agrostis avenacea J.F. Gmel. NI FACU* FACW* FACU FACU*,FACW*

Agrostis canina L. FACU FACU- UPL NI UPL,FACU

Agrostis capillaris L. NI FAC* FAC* NI FACW* FAC FAC FACU* FACU*,FACW*

Agrostis clavata Trin. OBL OBL

Agrostis elliottiana J.A. Schultes NI NI NI NI NI NI FACU FACU

Agrostis exarata Trin. NI FACW FACW FACW FACW FACW FACW FACW FACW FACW

Agrostis gigantea Roth FACW- FACW FACW FACW FACW FACW FACW FACW FAC* FACW FAC* FAC*,FACW

Agrostis hendersonii A.S. Hitchc. NI FACW FACW

Agrostis humilis Vasey NI NI NI FACW FACW FACW FACW

Agrostis hyemalis (Walt.) B.S.P. FAC FAC FAC- FACW FACU FACW- NI NI FACW FACU,FACW

Agrostis idahoensis Nash NI NI FACW FAC FACW FACW FAC,FACW

Agrostis longiligula A.S. Hitchc. OBL OBL OBL

Agrostis mertensii Trin. FACU FACU NI NI FACU FACU FACU FACU

Agrostis microphylla Steud. FACW FACW FACW

Agrostis oregonensis Vasey OBL FAC OBL FAC,OBL

Agrostis pallens Trin. NI NI UPL UPL

Agrostis perennans (Walt.) Tuckerman FACU FACU FAC- FACW FACU FAC NI NI FACU,FACW

Agrostis rossiae Vasey NI NI NI



North Central

North Plains

Central Plains




Agrostis sandwicensis Hbd. FACU* FACU*

Agrostis scabra Willd. FAC FAC FAC FAC FAC FAC+ FAC FAC FAC FAC FAC FAC,FAC+

Agrostis stolonifera L. FACW FACW FACW FACW FACW FACW FACW* FACW FACW* FACW FAC* FACU FACU,FACW

Agrostis tandilensis (Kuntze) Parodi OBL* OBL*

Agrostis thurberiana A.S. Hitchc. NI NI OBL FACW FACW FACW* FACW*,OBL

Agrostis vinealis ssp. trinii (Turcz.) Tzvelev FAC FAC

Ailanthus altissima (P. Mill.) Swingle FACU- FACU- UPL FACU FACU FACU FACU* NI FACU UPL,FACU

Aira caryophyllea L. NI NI NI NI NI NI FACU* FACU*

Albizia saman (Jacq.) F. Muell. NI FACW UPL UPL,FACW

Alchornea latifolia Sw. FACU+ FACU+

Alectra fluminensis (Vell.) Stearn OBL OBL

Aletris aurea Walt. FACW FACW+ FACW+ FACW,FACW+

Aletris farinosa L. FAC FAC+ FAC FAC FAC,FAC+

Aletris lutea Small FACW+ FACW+

Aletris obovata Nash FAC FAC

Aleurites moluccana (L.) Willd. NI UPL NI UPL

Alhagi maurorum Medik. FAC+ FACW- FAC+* NI FAC FAC,FACW-

Alisma gramineum Lej. OBL OBL OBL OBL OBL OBL OBL OBL OBL

Alisma lanceolatum Withering OBL OBL OBL

Alisma plantago-aquatica L. NI NI NI OBL OBL

Alisma subcordatum Raf. OBL OBL OBL OBL OBL OBL OBL OBL OBL

Allenrolfea occidentalis (S. Wats.) Kuntze FACW FACW FACW+ FACW+ FACW+ FACW,FACW+

Alliaria petiolata (Bieb.) Cavara & Grande FACU- FACW FAC FACU FACW FACU* NI NI FACU-,FACW

Allium bisceptrum S. Wats. FACU* FAC- FAC FAC FACU*,FAC

Allium canadense L. FACU FACU- FACU FACU FACU FACU- NI FACU-,FACU

Allium cernuum Roth NI FACU-* NI NI NI NI NI FACU* NI FACU-*,FACU*

Allium douglasii Hook. FAC+ FAC+

Allium geyeri S. Wats. FACU FACU FACU FACU FACW* FACU FACU,FACW*

Allium hickmanii Eastw. NI

Allium hyalinum Curran NI*

Allium lemmonii S. Wats. NI NI FACU FACU

Allium madidum S. Wats. OBL OBL

Allium schoenoprasum L. FACU FAC+ NI NI FACW FACW+ FAC FACU,FACW+

Allium tricoccum Ait. FACU+ FACU+ FACU+ FACU NI NI FACU,FACU+

Allium validum S. Wats. OBL OBL OBL OBL

Allium vineale L. FACU- FACU FACU FACU FACU* NI NI FACU-,FACU



North Central

North Plains

Central Plains




Allolepis texana (Vasey) Söderstrom & Decker FAC FAC

Allophyllum gilioides (Benth.) A.& V. Grant FACW FACU FAC FACU* FACU*,FACW

Alnus glutinosa (L.) Gaertn. FACW- FACW* FACW- NI FACW-,FACW*

Alnus incana (L.) Moench NI FACU FACW FACW* FACW FACW NI FAC FACU,FACW

Alnus incana ssp. rugosa (Du Roi) Clausen FACW OBL FACW NI FACW,OBL

Alnus incana ssp. tenuifolia (Nutt.) Breitung NI NI FACW FACW FACW OBL* FAC FAC,OBL*

Alnus maritima (Marsh.) Muhl. ex Nutt. OBL NI OBL

Alnus oblongifolia Torr. FACW+ FACW+

Alnus rhombifolia Nutt. FACW* FACW FACW FACW*,FACW

Alnus rubra Bong. FAC FACW FAC FAC,FACW

Alnus serrulata (Ait.) Willd. OBL FACW OBL FACW OBL FACW,OBL

Alnus viridis ssp. crispa (Ait.) Turrill FAC FAC FAC FACW* FACW* FAC FAC,FACW*

Alnus viridis ssp. sinuata (Regel) A.& D. Löve NI FACW FACW FAC FAC,FACW

Alocasia macrorrhizos (L.) G. Don FACW+ FAC- FAC-,FACW+

Alopecurus aequalis Sobol. OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL

Alopecurus arundinaceus Poir. NI FACW NI FAC* FAC*,FACW

Alopecurus borealis Trin. NI NI FACW FACW FACW FACW

Alopecurus carolinianus Walt. FACW FACW FACW FACW FACW FACW FACW FACW FAC+ FACW FAC+,FACW

Alopecurus geniculatus L. OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL

Alopecurus myosuroides Huds. FACW FACW- FACW FACW FACW FACW* FACW NI* FACW-,FACW

Alopecurus pratensis L. FACW FAC FACW FACW FACW NI FACW FACW FACW FACW FAC,FACW

Alopecurus saccatus Vasey FACW+ OBL FACW+,OBL

Alophia drummondii (Graham) R.C. Foster FACU FACU- FACU-,FACU

Alsinidendron lychnoides (Hbd.) Sherff FAC* FAC*

Alsinidendron viscosum (Mann) Sherff FACW FACW

Alsophila amintae Conant FACW FACW

Alsophila brooksii (Maxon) R. Tryon FAC* FAC*

Alsophila bryophila R. Tryon FACW FACW

Alsophila portoricensis (Spreng. ex Kuhn) Conant FACW FACW

Alternanthera flavescens Kunth NI UPL UPL

Alternanthera philoxeroides (Mart.) Griseb. OBL OBL OBL OBL OBL OBL

Alternanthera sessilis (L.) R. Br. ex DC. NI FACU FAC FAC FACU,FAC

Althaea officinalis L. FACW+ FACW* FAC* FACW FAC*,FACW+

Alysicarpus vaginalis (L.) DC. NI NI FAC NI FAC

Alyxia oliviformis Gaud. FACU- FACU-

Amaranthus acanthochiton Sauer FACU FACU FACU FACU



North Central

North Plains

Central Plains




Amaranthus albus L. FACU FACU FACU FACU FACU FACU- FACU FACU FACU FACU NI FACU-,FACU

Amaranthus arenicola I.M. Johnston UPL* FACU FACU FACU FACU FACU- FAC FAC NI NI* UPL*,FAC

Amaranthus australis (Gray) Sauer NI OBL OBL OBL OBL

Amaranthus blitoides S. Wats. NI FAC FACU* FAC FACW FAC FACU FACU FACW FACW UPL UPL,FACW

Amaranthus blitum L. NI NI NI NI FAC FAC

Amaranthus californicus (Moq.) S. Wats. NI FACW* FACW FACW FACW FACW*,FACW

Amaranthus cannabinus (L.) Sauer OBL OBL OBL

Amaranthus crassipes Schlecht. NI FAC FAC+ FAC* FACU FACU,FAC+

Amaranthus floridanus (S. Wats.) Sauer OBL OBL

Amaranthus greggii S. Wats. NI FAC FAC

Amaranthus obcordatus (Gray) Standl. FACU* FACU* FACU*

Amaranthus palmeri S. Wats. FACU FACU FACU FACU FACU- FACU FACU FACU FACU-,FACU

Amaranthus pumilus Raf. FACW* FACW FACW*,FACW

Amaranthus retroflexus L. FACU FAC- FACU+ FACU FACU FACU- FACU* FACU FACU+ FACU UPL UPL,FAC-

Amaranthus rudis Sauer FACW- FAC FACW FAC FACW FAC FACU- NI NI NI FACU-,FACW

Amaranthus spinosus L. FACU FACU FACU FACU FACU- FACU FACU FACU- FACU-,FACU

Amaranthus tuberculatus (Moq.) Sauer FACW FACW+ OBL OBL OBL NI FACW,OBL

Amaranthus viridis L. NI NI NI NI NI NI NI FAC FAC

Amaranthus watsonii Standl. NI FACW* FACW*

Amblyopappus pusillus Hook. & Arn. FACW- FACW-

Ambrosia artemisiifolia L. FACU FACU FACU FACU FACU FACU- FACU FACU- FACU+ FACU UPL UPL,FACU+

Ambrosia grayi (A. Nels.) Shinners FAC FACW FAC,FACW

Ambrosia psilostachya DC. FAC FAC- FAC FAC FACU FAC FACU- FACU+ FAC FACU-,FAC

Ambrosia pumila (Nutt.) Gray FACU* FACU*

Ambrosia trifida L. FAC FAC FAC+ FAC FACW FAC FACW- FACU- FAC FAC FACU-,FACW

Amelanchier alnifolia (Nutt.) Nutt. ex M. Roemer FACU+ FACU FACU- UPL FACU FACU UPL UPL,FACU+

Amelanchier arborea (Michx. f.) Fern. FAC- FACU FACU FAC FACU FACU,FAC

Amelanchier bartramiana (Tausch) M. Roemer FAC FAC FAC

Amelanchier canadensis (L.) Medik. FAC FAC FACU FACU,FAC

Amelanchier X intermedia Spach (pro sp.) FACW FACW FACW FACW

Amelanchier obovalis (Michx.) Ashe FACU FACW FACU,FACW

Amelanchier stolonifera Wieg. FACU FACU FACU NI FACU

Amelanchier utahensis Koehne NI NI FAC- NI NI NI NI FAC-

Amerorchis rotundifolia (Banks ex Pursh) Hultén OBL OBL NI OBL FACW FACW,OBL

Amianthium muscitoxicum (Walt.) Gray FAC FAC FAC FAC FAC

Ammannia auriculata Willd. OBL OBL OBL OBL NI OBL OBL



North Central

North Plains

Central Plains




Ammannia coccinea Rottb. OBL OBL OBL OBL OBL OBL OBL NI OBL OBL OBL OBL OBL

Ammannia latifolia L. NI OBL OBL OBL OBL

Ammannia robusta Heer & Regel OBL* NI NI NI NI NI NI OBL NI OBL OBL*,OBL

Ammophila arenaria (L.) Link FACU- FACU FACU NI FACU-,FACU

Ammophila breviligulata Fern. FACU- UPL UPL* NI UPL*,FACU-

Ammoselinum butleri (Engelm. ex S. Wats.) Coult. & Rose FAC FAC FAC+ FAC,FAC+

Amorpha californica Nutt. FAC FACU FACU,FAC

Amorpha fruticosa L. FACW FACW FACW FACW OBL FACW FACW+ FAC FACW FAC* FAC*,OBL

Amorpha georgiana Wilbur FACW FACW

Amorpha herbacea Walt. FAC FAC

Amorpha nana Nutt. FACU* UPL UPL NI FACU* NI UPL,FACU*

Amorpha nitens Boynt. NI FAC FACW NI FAC,FACW

Amorpha paniculata Torr. & Gray FACW FACW FACW

Amorpha roemeriana Scheele FACU FACU

Ampelopsis arborea (L.) Koehne FACW FAC+ FACW FAC NI FAC,FACW

Ampelopsis cordata Michx. FAC+ FAC+ FAC+ UPL FAC- UPL,FAC+

Amphianthus pusillus Torr. OBL OBL

Amphicarpaea bracteata (L.) Fern. FAC FAC FAC FACU FACW FACU NI FACU,FACW

Amphicarpum muehlenbergianum (J.A. Schultes) A.S. Hitchc. FACW FACW

Amphicarpum purshii Kunth FACW FACW FACW

Amsinckia spectabilis Fisch. & C.A. Mey. NI NI FACU FACU FACU

Amsonia illustris Woods. NI NI FAC+ FAC FAC+ FAC,FAC+

Amsonia ludoviciana Vail FAC FAC

Amsonia rigida Shuttlw. ex Small FACW FACW

Amsonia tabernaemontana Walt. FACW FACW FACW FACW FACW- FACW-,FACW

Amsonia tabernaemontana var. tabernaemontana Walt. NI OBL NI NI FACW+ FACW+,OBL

Amyris elemifera L. FAC* UPL UPL,FAC*

Anagallis arvensis L. UPL* FACU+ FACU FAC FAC FACW- FAC FAC+ FAC FAC NI NI UPL*,FACW-

Anagallis minima (L.) Krause FACW FACW+ FACU- OBL OBL FACW+ FACW+ OBL FACW FACW FACU-,OBL

Anagallis pumila Sw. FACW- FACW-

Andira inermis (W. Wright) Kunth ex DC. NI FACW FACW

Andromeda polifolia L. OBL OBL OBL OBL OBL

Andropogon arctatus Chapman FAC FAC

Andropogon bicornis L. FAC FAC

Andropogon brachystachyus Chapman FACW FACW

Andropogon floridanus Scribn. FACU- FACU-



North Central

North Plains

Central Plains




Andropogon gerardii Vitman FAC- FAC FAC- FACU FAC- FACU FAC- FACU FACU FACU,FAC

Andropogon glomeratus (Walt.) B.S.P. FACW+ FACW+ FACW+ FACW FACW* FACW FAC FAC,FACW+

Andropogon gyrans var. stenophyllus (Hack.) C. Campbell OBL NI OBL

Andropogon leucostachys Kunth FAC FAC

Andropogon longiberbis Hack. FAC* FAC*,FACW

Florida Hyperthermic FACW

Andropogon mohrii (Hack.) Hack. ex Vasey FACW OBL NI FACW,OBL

Andropogon ternarius Michx. FACU FACU FACU FACU FACU FACU

Andropogon virginicus L. FACU FAC- FAC- FAC FACU+ FAC FAC FACU FACU,FAC

Andropogon virginicus var. glaucus Hack. NI FACU NI FACU

Androsace chamaejasme Wulfen NI NI FACU* FACU FACU FACU FACU*,FACU

Androsace filiformis Retz. NI NI OBL FACW FACW,OBL

Androsace occidentalis Pursh NI FACU* FACU- FACU FACU FACU- FACU FACU FACU FACU FACU-,FACU

Androsace septentrionalis L. FAC- FACU+ NI FACU* FAC- FACU FAC- FACU UPL UPL,FAC-

Anemone canadensis L. FACW FAC FACW FACW FACW FACW- FAC- NI FAC-,FACW

Anemone hupehensis (hort. ex Lem.) Lem. ex Boynton FAC FAC

Anemone oregana Gray FACU FAC* FACU,FAC*

Anemone parviflora Michx. NI NI FACU FACW- FACU FACU,FACW-

Anemone piperi Britt. ex Rydb. FACU- FACU-

Anemone quinquefolia L. FACU FACU* FAC* FAC FAC NI NI FACU*,FAC

Anemone richardsonii Hook. FAC FAC

Anemone virginiana L. FACU* FACU* FACU* FACU FACU FACU* FACU*,FACU

Anemone virginiana var. riparia (Fern.) Boivin FAC* NI NI NI FAC*

Anemopsis californica (Nutt.) Hook. & Arn. OBL FACW+ OBL OBL NI OBL FACW+,OBL

Anetium citrifolium (L.) Splitg. NI*

Angadenia berteroi (A. DC.) Miers FACW* FACW*

Angelica ampla A. Nels. NI FACW* FACW+ FACW FACW*,FACW+

Angelica arguta Nutt. NI FACW FACW FACW FACW

Angelica atropurpurea L. OBL OBL OBL OBL

Angelica dawsonii S. Wats. NI FACW FACW

Angelica genuflexa Nutt. FACW FACW FACW FACW

Angelica kingii (S. Wats.) Coult. & Rose NI NI FACW* FACW*

Angelica lucida L. FAC* FAC+ FAC FACU FACU,FAC+

Angelica pinnata S. Wats. NI NI FACW FAC FACW FAC,FACW

Angelica scabrida Clokey & Mathias ex Clokey UPL* UPL*

Angelica triquinata Michx. UPL* FAC UPL*,FAC



North Central

North Plains

Central Plains




Aniba bracteata (Nees) Mez FAC FAC

Aniseia martinicensis (Jacq.) Choisy NI OBL FAC FAC,OBL

Annona glabra L. OBL OBL OBL

Anoda cristata (L.) Schlecht. UPL* FAC FAC FAC FAC FAC FAC* NI UPL*,FAC

Anoectochilus sandvicensis Lindl. FACW* FACW*

Antennaria alpina (L.) Gaertn. NI NI NI NI FACU FACU

Antennaria arcuata Cronq. FACW* FACW* FACW*

Antennaria corymbosa E. Nels. NI NI FACW FAC* FAC FAC*,FACW

Antennaria media Greene NI NI NI NI NI FAC* NI FAC*

Antennaria neglecta Greene UPL NI NI NI NI NI NI NI UPL,FACU-

Great Lakes Plain FACU-

Antennaria pulchella Greene NI FAC* FAC*

Antennaria pulcherrima (Hook.) Greene NI FAC FACU FAC FACU,FAC

Antennaria umbrinella Rydb. NI NI FACU- FACU- FACU FACU* FACU-,FACU

Anthaenantia rufa (Nutt.) J.A. Schultes FACU FACU FACU

Anthaenantia villosa (Michx.) Beauv. UPL FACU- UPL,FACU-

Anthemis cotula L. FACU- FACU- FACU FACU FACU FACU UPL FACU+ FACU FACU FACU NI UPL,FACU+

Anthoxanthum odoratum L. FACU FACU FACU NI NI FACU* FACU FACU UPL UPL UPL,FACU

Anthurium dominicense Schott FAC FAC

Antidesma platyphyllum Mann FACU FACU

Antirhea obtusifolia Urban FACW FACW

Antrophyum lanceolatum (L.) Kaulfuss NI*

Aphragmus eschscholtzianus Andrz. ex DC. FACW FACW

Apiastrum angustifolium Nutt. NI NI

Apios americana Medik. FACW FACW FACW FACW FACW FAC NI FAC,FACW

Apium graveolens L. FAC FAC FAC- FACW FACW NI NI FACW* FAC-,FACW

Apium nodiflorum (L.) Lag. NI NI OBL* OBL*

Aplectrum hyemale (Muhl. ex Willd.) Torr. FAC FAC+ FAC- FACW FAC* NI FAC-,FACW

Apocynum androsaemifolium L. UPL UPL NI NI NI NI NI NI NI NI NI UPL,FACU-


Apocynum cannabinum L. FACU FAC- FAC FAC FAC FAC FAC+ FAC FAC FAC FACU,FAC+

Aponogeton distachyos L. f. NI

Aptenia cordifolia (L. f.) Schwant. NI FAC* FAC*

Apteria aphylla (Nutt.) Barnh. ex Small FACW FACW FACW

Aquilegia canadensis L. FAC FAC- FAC- FAC FAC FACW FAC-,FACW



North Central

North Plains

Central Plains




Aquilegia chrysantha Gray NI FACW- FACW FAC FAC,FACW

Aquilegia chrysantha var. chaplinei (Standl. ex Payson) Lott OBL OBL OBL

Aquilegia chrysantha var. hinckleyana (Munz) Lott FACW+ FACW+

Aquilegia coerulea James NI NI FACW- FACU FAC FACU,FACW-

Aquilegia eximia Van Houtte ex Planch. OBL OBL

Aquilegia formosa Fisch. ex DC. FAC FAC FAC FACU FACU,FAC

Aquilegia formosa var. formosa Fisch. ex DC. NI OBL NI OBL NI OBL

Aquilegia longissima Gray FACW+ FACW+ FACW+

Arabis alpina L. FAC+ FAC+

Arabis crucisetosa Constance & Rollins FAC FAC

Arabis X divaricarpa A. Nels. (pro sp.) FACU FACU FACU FACU FACU FACU FACU FACU FACU FACU

Arabis drummondii Gray FACU FACU FACU FACU FACU FACU FACU FACU FACU FACU

Arabis hirsuta (L.) Scop. FACU FACU FACU FACU FACU FACU FACU FACU NI* FACU FACU

Arabis holboellii Hornem. UPL FACU UPL UPL* UPL FACU- FACU* UPL UPL*,FACU

Arabis lemmonii S. Wats. NI UPL FACU- UPL UPL UPL,FACU-

Arabis lyrata L. FACU FACU FACU- NI NI FACU FACU FACU-,FACU

Aralia californica S. Wats. FAC+ FACW FAC+,FACW

Aralia nudicaulis L. FACU FACU FACU FACU FACU FACU- FACU FACU-,FACU

Aralia racemosa L. NI NI NI NI NI FACU FAC NI FACU,FAC

Aralia spinosa L. FAC FAC FACW- FAC FAC,FACW-

Arctagrostis latifolia (R. Br.) Griseb. NI FACW FACW

Arctium minus Bernh. FACU- UPL NI NI NI NI NI NI NI NI UPL,FACU-

Arctophila fulva (Trin.) Rupr. ex Anderss. OBL NI OBL

Arctostaphylos alpina (L.) Spreng. FAC FACU* FACU*,FAC

Arctostaphylos rubra (Rehd. & Wilson) Fern. NI FAC* FAC*

Arctostaphylos uva-ursi (L.) Spreng. NI UPL FACU- FACU UPL UPL FACU- FACU- UPL UPL,FACU

Ardisia elliptica Thunb. NI NI FACU FACU

Ardisia glauciflora Urban OBL OBL

Ardisia luquillensis (Britt.) Alain OBL OBL

Arenaria capillaris ssp. americana Maguire NI FACU* NI FACU*

Arenaria lanuginosa (Michx.) Rohrb. FAC FAC NI FACU FACU FACU NI FACU,FAC

Arenaria paludicola B.L. Robins. OBL OBL OBL

Arenaria serpyllifolia L. FAC FAC FAC FAC FAC FACU NI FACU FACU FACU NI FACU,FAC

Arethusa bulbosa L. OBL OBL OBL OBL

Argentina anserina (L.) Rydb. OBL NI FACW+ OBL OBL OBL OBL OBL OBL FACW FACW,OBL

Argusia gnaphalodes (L.) Heine FACU FACU FACU



North Central

North Plains

Central Plains




Argyroxiphium caliginis Forbes OBL OBL

Argyroxiphium grayanum (Hbd.) O. Deg. OBL OBL

Argyroxiphium kauense (Rock & Neal) O.& I. Deg. FACW- FACW-

Arisaema dracontium (L.) Schott FACW FACW FACW FACW FACW FACW

Arisaema triphyllum (L.) Schott FACW- FACW- FACW- FACW FAC FACW FAC,FACW

Arisaema triphyllum ssp. quinatum (Buckl.) Huttleston NI FAC- FAC- FAC-

Aristida dichotoma Michx. UPL FACU FACU UPL FACU FACU NI NI UPL,FACU

Aristida longespica Poir. UPL FACU FACU- UPL FACU FACU FACU* NI UPL,FACU

Aristida patula Chapman ex Nash FAC+ FAC+

Aristida purpurascens Poir. NI FAC* NI NI NI NI NI NI NI NI FAC*

Aristida purpurascens var. purpurascens Poir. FACW+ OBL NI NI NI FACW- NI NI NI NI FACW-,OBL

Aristida purpurascens var. tenuispica (A.S. Hitchc.) Allred FAC FAC

Aristida purpurascens var. virgata (Trin.) Allred FAC FACW- FAC FAC,FACW-

Aristida rhizomophora Swallen FACW* FACW*

Aristida simpliciflora Chapman FAC- FAC-

Aristida spiciformis Ell. FAC NI FAC FAC

Aristida stricta Michx. FAC- FAC-

Aristolochia serpentaria L. UPL* FACU UPL UPL FACU* UPL*,FACU

Aristolochia tomentosa Sims FAC FAC FAC FAC FAC FAC

Aristolochia trilobata L. OBL OBL

Armeria maritima (P. Mill.) Willd. NI NI FACU* FAC* FACU FACU FACU*,FAC*

Armoracia lacustris (Gray) Al-Shehbaz & Bates OBL OBL OBL OBL OBL

Armoracia rusticana P.G. Gaertn., B. Mey. & Scherb. NI NI FAC* FACW FAC NI NI NI FAC*,FACW

Arnica acaulis (Walt.) B.S.P. FACU FAC FACU,FAC

Arnica amplexicaulis Nutt. FACW FACW FACW FAC FAC,FACW

Arnica chamissonis Less. NI NI NI FACW FACW FACW FACW FACW FACW

Arnica X diversifolia Greene (pro sp.) NI FACU FACW FACW FACW FACU,FACW

Arnica fulgens Pursh NI NI NI NI UPL UPL

Arnica latifolia Bong. NI NI NI FACU FAC- FAC FAC FACU,FAC

Arnica longifolia D.C. Eat. NI NI FAC FACW FACW- FAC,FACW

Arnica mollis Hook. FAC NI NI FAC* FAC FAC+ FACW FAC*,FACW

Arnoglossum diversifolium (Torr. & Gray) H.E. Robins. FACW- FACW-

Arnoglossum ovatum (Walt.) H.E. Robins. FAC FAC* FAC*,FAC

Arnoglossum plantagineum Raf. FACW FACU FAC FACW FACW FAC FACU,FACW

Arnoglossum sulcatum (Fern.) H.E. Robins. NI OBL OBL

Aronia arbutifolia (L.) Pers. FACW FACW NI FACW FACW



North Central

North Plains

Central Plains




Aronia melanocarpa (Michx.) Ell. FAC FAC FACW- FAC,FACW-

Aronia X prunifolia (Marsh.) Rehd. (pro sp.) FACW FACW FACW FACW

Arrhenatherum elatius (L.) J.& K. Presl FACU FACU FACU FACU FACU UPL UPL UPL FACU* UPL NI UPL,FACU

Artemisia annua L. FACU FACU FACU FACU FACU- FACU UPL UPL UPL FACU* UPL,FACU

Artemisia arctica ssp. saxicola (Rydb.) Hultén NI FACU- NI FACU-

Artemisia biennis Willd. FACU- FACW- FAC FACU- FACW FACW FACW FAC FAC FACU-,FACW

Artemisia cana Pursh FACU FACU FACU FACW FACW- FACU* FACW NI FACU*,FACW

Artemisia douglasiana Bess. FAC FACW FAC+ FAC,FACW

Artemisia lindleyana Bess. NI OBL NI OBL

Artemisia ludoviciana Nutt. UPL UPL UPL FACU FACU- UPL UPL FACU FACU-* FACU- UPL,FACU

Artemisia papposa Blake & Cronq. FACU NI FACU

Artemisia stelleriana Bess. FACU FACU- NI UPL NI UPL,FACU

Artemisia suksdorfii Piper NI FACU* FACU*

Artemisia vulgaris L. UPL UPL NI NI NI NI NI UPL,FACU-


Arthraxon hispidus (Thunb.) Makino FAC* FACU+ FACW* NI FACU* NI NI FACU*,FACW*

Arthrocnemum subterminale (Parish) Standl. OBL OBL

Arthrostemma ciliatum Pavón ex D. Don FACW FACW

Arthrostylidium multispicatum Pilger FAC FAC

Arthrostylidium sarmentosum Pilger FAC FAC

Aruncus dioicus (Walt.) Fern. FACU FACU+ FACU FACU* FACU+ FACW* UPL UPL,FACW*

Arundina graminifolia (D. Don) Hochr. NI FACU FACU

Arundinaria gigantea (Walt.) Muhl. FACW- FACW FACW NI FACW FACW-,FACW

Arundo donax L. FACU- FACW FACW NI FAC+ FACW FACW FAC+ FAC FACU FACU-,FACW

Asarum canadense L. FACU- UPL NI NI NI NI UPL,FACU-

Asarum caudatum Lindl. FACU* FACU* FACU*

Asarum lemmonii S. Wats. OBL OBL

Ascarina diffusa A.C. Sm. FACU FACU

Asclepias cinerea Walt. FAC FAC

Asclepias connivens Baldw. OBL OBL

Asclepias curassavica L. FAC FAC+ FAC FACU+ NI FACU+,FAC+

Asclepias exaltata L. FACU* UPL UPL UPL,FACU*

Asclepias fascicularis Dcne. FAC- FAC- FAC FAC-,FAC

Asclepias hirtella (Pennell) Woods. UPL UPL FACU* FAC FACU* UPL,FAC

Asclepias incarnata L. OBL OBL OBL OBL OBL FACW+ OBL OBL NI FACW+,OBL

Asclepias lanceolata Walt. OBL OBL OBL OBL



North Central

North Plains

Central Plains




Asclepias longifolia Michx. OBL FACW+ OBL FACW+,OBL

Asclepias michauxii Dcne. FAC+ FAC+

Asclepias oenotheroides Cham. & Schlecht. NI FACU- FACU+ FACU* NI FACU-,FACU+

Asclepias pedicellata Walt. FACW+ FACW+

Asclepias perennis Walt. NI OBL OBL OBL OBL

Asclepias purpurascens L. FACU FACU FACU NI FACU FACU+ FACU,FACU+

Asclepias rubra L. OBL OBL OBL OBL

Asclepias speciosa Torr. FAC FAC FAC FAC FACW- FACW FAC+ FAC FAC,FACW

Asclepias subverticillata (Gray) Vail NI FACU FACU FACU- FACU FACU UPL UPL,FACU

Asclepias syriaca L. FACU- UPL NI NI NI NI NI UPL,FACU-

Asclepias texana Heller FACU FACU

Asclepias variegata L. FACU FACU FACU FACU FACU

Asclepias viridula Chapman FACW- FACW-

Asimina parviflora (Michx.) Dunal UPL* FACU FAC UPL*,FAC

Asimina pygmea (Bartr.) Dunal FACU FACU

Asimina reticulata Shuttlw. ex Chapman FACU FACU

Asimina triloba (L.) Dunal FACU+ FAC FAC FAC FAC- FACU+,FAC

Lower Coastal Plain FAC

Asparagus officinalis L. FACU FACU- FACU FACU FACU- FACU FACU FACU FACU FACU FACU-,FACU

Asperugo procumbens L. NI NI NI NI NI NI UPL NI UPL

Asplenium abscissum Willd. NI FACW FACW

Asplenium auriculatum Sw. FAC FAC

Asplenium auritum Sw. NI UPL UPL

Asplenium cirrhatum L.C. Rich. ex Willd. FAC FAC

Asplenium cristatum Lam. NI FAC FAC

Asplenium cuneatum Lam. UPL NI UPL

Asplenium formosum Willd. FACW FACW

Asplenium heterochroum Kunze NI UPL UPL

Asplenium juglandifolium Lam. FAC FAC

Asplenium laetum Sw. FACW FACW

Asplenium multifidum Brack. FACU FACU

Asplenium obtusifolium L. OBL OBL

Asplenium ocoense C. Christens. FAC FAC

Asplenium platyneuron (L.) B.S.P. FACU FACU FACU FACU FACU- FACU* NI FACU-,FACU

Asplenium pteropus Kaulfuss FACU FACU

Asplenium pumilum Sw. FAC* UPL UPL,FAC*



North Central

North Plains

Central Plains




Asplenium serratum L. FACW* FACW FACW*,FACW

Asplenium trichomanes-dentatum L. NI UPL UPL

Asplenium trichomanes-ramosum L. UPL UPL FACU NI UPL FACU NI UPL UPL,FACU

Asplenium uniseriale Raddi FAC FAC

Astelia menziesiana Sm. FAC FAC

Astelia waialealae Wawra OBL OBL

Aster acuminatus Michx. FACU+ UPL UPL,FACU+

Aster alpigenus (Torr. & Gray) Gray NI OBL FAC* OBL FAC*,OBL

Aster ascendens Lindl. FACU NI FACW- FACU NI NI FACU,FACW-

Aster X blakei (Porter) House (pro sp.) FACW+ FACW+

Aster borealis (Torr. & Gray) Prov. OBL OBL OBL OBL OBL OBL NI OBL OBL

Aster carolinianus Walt. OBL OBL

Aster chapmanii Torr. & Gray OBL OBL

Aster chilensis Nees NI FAC FAC FAC

Aster defoliatus Parish OBL OBL

Aster dumosus L. FAC FAC FAC+ FAC FAC,FAC+

Aster eatonii (Gray) T.J. Howell FAC NI FAC FAC FAC+ FAC FAC,FAC+

Aster elatus (Greene) Cronq. FACW FACW

Aster ericoides L. FACU UPL FACU- FACU FACU FACU- FACU FACU- UPL UPL,FACU

Aster ericoides var. pansus (Blake) Boivin NI FAC FAC FACU FAC+ FACU,FAC+

Aster eryngiifolius Torr. & Gray OBL OBL

Aster X eulae Shinners (pro sp.) FAC FAC

Aster falcatus Lindl. NI FAC- FACU FAC FAC* FAC FAC FACU- NI FACU-,FAC

Aster foliaceus Lindl. ex DC. FAC NI FACW FACU FACW- FACW* FACU,FACW

Aster gracilis Nutt. FACU FACU FACU

Aster laevis L. UPL UPL NI NI NI NI NI NI NI NI UPL,FACU-


Aster lanceolatus Willd. NI NI NI FAC* FAC* NI NI NI NI NI FAC*

Aster lanceolatus ssp. hesperius (Gray) Semple & Chmielewski OBL OBL OBL FACW* OBL OBL OBL OBL FACW*,OBL

Aster lanceolatus ssp. lanceolatus var. lanceolatus Willd. FACW FACW FACW FACW FACW FACW FACW

Aster lateriflorus (L.) Britt. FACW- FAC FACW- FACW FACW FACW FAC,FACW

Aster lateriflorus var. hirsuticaulis (Lindl. ex DC.) Porter FACW FAC+ FACW FAC+,FACW

Aster lateriflorus var. lateriflorus (L.) Britt. FAC FAC FACW- FACW FACW* FAC,FACW

Aster lentus Greene OBL OBL

Aster macrophyllus L. UPL UPL NI UPL

Aster modestus Lindl. FAC+ NI FACW FAC FAC,FACW



North Central

North Plains

Central Plains




Aster nemoralis Ait. FACW+ OBL FACW+,OBL

Aster novae-angliae L. FAC FACW FACW FACW FACW FACW FACW NI NI FAC,FACW

Aster novi-belgii L. FACW+ OBL FACW NI FACW,OBL

Aster occidentalis (Nutt.) Torr. & Gray NI NI NI FAC FAC FAC FAC

Aster ontarionis Wieg. FAC FAC FAC FAC FAC FAC FAC

Aster paludosus Ait. NI FACW FACW FACW FACW- FACW-,FACW

Aster paludosus ssp. hemisphericus (Alexander) Cronq. NI FACU FACU* FAC FAC FACU*,FAC

Aster pauciflorus Nutt. FACW FACW FACW FACW FACW FACW FACW

Aster pilosus Willd. UPL FAC- FACU UPL FACU FACU UPL,FAC-

Aster pilosus var. demotus Blake FACW FACW NI NI NI FACW

Aster porteri Gray NI NI FACU* FACU- NI FACU-,FACU*

Aster praealtus Poir. FACW FACW- FACW NI FACW FACW- FACW- NI NI NI FACW-,FACW

Aster praealtus var. coerulescens (DC.) A.G. Jones NI NI FACW FACW* OBL NI NI NI FACW*,OBL

Aster prenanthoides Muhl. ex Willd. FAC FAC FAC FAC

Aster puniceus L. OBL OBL OBL OBL OBL NI OBL

Aster puniceus var. firmus (Nees) Torr. & Gray FACW NI FACW+ FACW FACW,FACW+

Aster puniceus var. scabricaulis (Shinners) A.G. Jones FACW+ FACW+

Aster radula Ait. OBL OBL

Aster reticulatus Pursh FAC FAC

Aster sibiricus L. UPL NI NI FAC UPL,FAC

Aster spinulosus Chapman FACW+ FACW+

Aster subspicatus Nees NI FAC* FAC FACW FAC FAC*,FACW

Aster subulatus Michx. OBL OBL OBL FACW OBL* OBL* OBL FACW FACW+ FAC FAC,OBL

Aster tenuifolius L. OBL OBL OBL OBL

Aster umbellatus P. Mill. FACW FACW FACW FACW+ FACW OBL FACW,OBL

Aster walteri Alexander FAC FAC

Aster yukonensis Cronq. FACW FACW

Astilbe biternata (Vent.) Britt. FACU FACU FACU

Astragalus agrestis Dougl. ex G. Don FACW- FACU FAC+ FACW- FAC FACW- FAC* FACU,FACW-

Astragalus alpinus L. FACU FAC FAC NI FAC FAC FAC- FAC FACU,FAC

Astragalus americanus (Hook.) M.E. Jones FAC NI FAC FAC FAC

Astragalus argophyllus var. argophyllus Nutt. NI NI FACW FACW

Astragalus bodinii Sheldon FAC NI NI FACW* FACW* FAC FAC,FACW*

Astragalus canadensis L. FAC FAC FAC+ FACU FACU FAC NI FACW FACW- FAC FACU,FACW

Astragalus diaphanus Dougl. ex Hook. FACU+ FACU+

Astragalus eucosmus B.L. Robins. FACU NI NI FAC FACU UPL UPL,FAC



North Central

North Plains

Central Plains




Astragalus hornii Gray NI FAC FAC

Astragalus lemmonii Gray NI FACW FACW FACW

Astragalus lentiginosus Dougl. ex Hook. NI FACU* UPL NI NI UPL,FACU*

Astragalus lentiginosus var. fremontii (Gray ex Torr.) S. Wats. FACU* NI FACU*

Astragalus lentiginosus var. kernensis (Jepson) Barneby NI UPL UPL

Astragalus lentiginosus var. piscinensis Barneby OBL OBL

Astragalus lentiginosus var. pohilii Welsh & Barneby FACU* FACU*

Astragalus lentiginosus var. sesquimetralis (Rydb.) Barneby FACU* OBL* FACU*,OBL*

Astragalus leptaleus Gray NI OBL* OBL* OBL*

Astragalus limnocharis Barneby OBL* OBL*

Astragalus neglectus (Torr. & Gray) Sheldon FACU FACU- UPL UPL,FACU

Astragalus nutzotinensis Rouss. FAC FAC

Astragalus paysonii (Rydb.) Barneby NI

Astragalus phoenix Barneby FACU* FACU*

Astragalus polaris Benth. NI NI FAC FAC

Astragalus preussii Gray NI NI UPL UPL

Astragalus pycnostachyus Gray OBL OBL

Astragalus robbinsii (Oakes) Gray UPL NI NI FAC+ FAC+ FAC UPL,FAC+

Astragalus striatiflorus M.E. Jones NI UPL* UPL*

Astragalus tener Gray FACW FACW

Astronidium kusaianum Hosokawa FACU FACU

Astronidium pickeringii (Gray) Christoph. FACU FACU

Astronidium ponapense (Kanehira) Mgf. FACU FACU

Athyrium americanum (Butters) Maxon NI FACU FAC FAC FAC FACU,FAC

Athyrium filix-femina (L.) Roth FAC FAC FAC FAC FAC FAC+ FAC FAC+ FAC+ FAC FAC FAC,FAC+

Athyrium filix-femina ssp. asplenioides (Michx.) Hultén FAC* NI NI NI NI FAC*

Athyrium microphyllum (J. Sm.) Alston FAC FAC

Atriplex alaskensis S. Wats. FACW FACW

Atriplex argentea Nutt. NI FAC FACU FAC FAC FAC FAC FAC- FAC FACU,FAC

Atriplex bonnevillensis C.A. Hanson FACW FACW

Atriplex californica Moq. FAC FAC

Atriplex canescens (Pursh) Nutt. FACU- FACU- UPL UPL UPL UPL FACU UPL,FACU

Atriplex confertifolia (Torr. & Frém.) S. Wats. NI NI NI NI NI NI UPL UPL

Atriplex cordulata Jepson FAC FAC

Atriplex coronata S. Wats. FACW FACW

Atriplex coulteri (Moq.) D. Dietr. FACU FACU



North Central

North Plains

Central Plains




Atriplex depressa Jepson FAC FAC

Atriplex elegans (Moq.) D. Dietr. NI NI NI NI UPL UPL

Atriplex falcata (M.E. Jones) Standl. FACU NI FACU* UPL FAC* UPL,FAC*

Atriplex fruticulosa Jepson FACW FACW

Atriplex glabriuscula Edmondston NI NI

Atriplex gmelinii C.A. Mey. ex Bong. NI NI FACW FACW

Atriplex griffithsii Standl. FACU* FACU*

Atriplex hortensis L. UPL FAC FAC FACW FACU* FAC FAC FACW- FACW UPL,FACW

Atriplex lentiformis (Torr.) S. Wats. FACW FAC+ FAC NI FAC,FACW

Atriplex leucophylla (Moq.) D. Dietr. FAC* FAC*

Atriplex minuscula Standl. FACU* FACU*

Atriplex pacifica A. Nels. NI FAC FAC

Atriplex parishii S. Wats. FAC FAC

Atriplex parryi S. Wats. FACW FACW FACW

Atriplex patula L. FACW FACW FACW- FACW FACW FACW- FACW FACW FACW FACW FACW-,FACW

Atriplex pentandra (Jacq.) Standl. FAC- FAC FAC FACU FACU,FAC

Atriplex phyllostegia (Torr. ex S. Wats.) S. Wats. NI FACW NI FACW FACW

Atriplex polycarpa (Torr.) S. Wats. FACU- FACU FACU FACU-,FACU

Atriplex prostrata Bouchér ex DC. NI NI NI NI NI NI NI NI NI NI

Atriplex pusilla (Torr. ex S. Wats.) S. Wats. OBL FAC+ FAC FAC,OBL

Atriplex rosea L. FACU NI FACU+ FACU FACU FACU FACU FACU FACU FACU FACU,FACU+

Atriplex semibaccata R. Br. FAC+ FAC FACW FAC FACU FACU,FACW

Atriplex serenana A. Nels. FAC* FAC FAC FAC*,FAC

Atriplex spinifera J.F. Macbr. FAC FAC

Atriplex subspicata (Nutt.) Rydb. NI NI NI NI NI NI FAC NI NI NI FAC

Atriplex torreyi (S. Wats.) S. Wats. NI FAC- FAC FAC-,FAC

Atriplex tridentata Kuntze NI NI FACW NI FACW

Atriplex truncata (Torr. ex S. Wats.) Gray NI NI NI FAC FAC FACU+ FAC FACU+,FAC

Atriplex tularensis Coville FAC FAC

Atriplex vallicola Hoover FACW FACW

Atriplex watsonii A. Nels. FACW+ FACW+

Atriplex welshii C.A. Hanson FACU* FACU*

Avicennia germinans (L.) L. OBL OBL OBL OBL

Avicennia marina (Forsk.) Vierh. OBL OBL OBL

Axonopus aureus Beauv. FAC FAC

Axonopus compressus (Sw.) Beauv. NI FACW- FACW- FAC FAC,FACW-



North Central

North Plains

Central Plains




Axonopus fissifolius (Raddi) Kuhlm. FACW- FACW- FAC NI FAC FAC,FACW-

Axonopus furcatus (Fluegge) A.S. Hitchc. FACW OBL NI OBL FACW,OBL

Azolla caroliniana Willd. OBL OBL OBL NI OBL OBL OBL OBL

Azolla filiculoides Lam. NI OBL OBL OBL OBL NI OBL OBL

Azolla mexicana Schlecht. & Cham. ex K. Presl OBL OBL OBL OBL OBL OBL OBL OBL OBL

Baccharis angustifolia Michx. FACW+ FACW+

Baccharis dioica Vahl FACW UPL UPL,FACW

Baccharis douglasii DC. OBL OBL OBL

Baccharis emoryi Gray NI NI FACW FACW FACW FACW

Baccharis glomeruliflora Pers. FACW FACW

Baccharis halimifolia L. FACW FAC FACW- FAC,FACW

Baccharis neglecta Britt. FAC FAC FAC

Baccharis salicifolia (Ruiz & Pavón) Pers. FACW FACW FACW FACW FACW

Baccharis salicina Torr. & Gray FAC FAC FAC NI FAC

Baccharis sarothroides Gray FAC- FACU* FAC FACU*,FAC

Baccharis sergiloides Gray FAC- FACU FAC FACU,FAC

Baccharis wrightii Gray FAC FACU FACU NI FACU,FAC

Bacopa caroliniana (Walt.) B.L. Robins. OBL OBL OBL OBL

Bacopa egensis (Poepp.) Pennell OBL OBL

Bacopa eisenii (Kellogg) Pennell OBL OBL OBL

Bacopa innominata (G. Maza) Alain OBL OBL OBL OBL

Bacopa monnieri (L.) Pennell OBL OBL OBL OBL OBL OBL OBL OBL

Bacopa repens (Sw.) Wettst. NI OBL NI OBL OBL OBL

Bacopa rotundifolia (Michx.) Wettst. OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL

Bacopa stricta (Schrad.) B.L. Robins. OBL OBL

Balduina atropurpurea Harper FACW FACW

Balduina uniflora Nutt. NI FACW FACW

Bambusa vulgaris Schrad. ex J.C. Wendl. FACU FACU UPL UPL,FACU

Banara portoricensis Krug & Urban FACU FACU

Baptisia alba var. macrophylla (Larisey) Isely FACU* FAC FACU* FACU FACU* FACU*,FAC

Baptisia megacarpa Chapman ex Torr. & Gray FAC* FAC*

Barbarea orthoceras Ledeb. OBL OBL OBL OBL OBL OBL FACW+ FACW FACW FACW,OBL

Barbarea vulgaris Ait. f. FACU FAC FAC FAC FAC FACU* FACU* FAC* FAC- FACW FACU*,FACW

Barringtonia asiatica (L.) Kurz FAC FAC

Barringtonia racemosa Roxb. FACW FACW

Barringtonia samoensis Gray FACW FACW



North Central

North Plains

Central Plains




Bartonia paniculata (Michx.) Muhl. OBL OBL OBL OBL OBL

Bartonia texana Correll OBL OBL

Bartonia verna (Michx.) Raf. ex Bart. OBL OBL

Bartonia virginica (L.) B.S.P. FACW FACW FACW+ FACW,FACW+

Bassia hirsuta (L.) Aschers. OBL NI OBL

Bassia hyssopifolia (Pallas) Volk. NI FACW FACW FACW- FACW- FACW FACW FAC NI FAC,FACW

Batis maritima L. OBL OBL OBL FACW OBL FACW,OBL

Beckmannia syzigachne (Steud.) Fern. OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL

Befaria racemosa Vent. FAC- FAC-

Begonia cucullata Willd. FAC* NI FAC*

Begonia decandra Pavón ex A. DC. FACW- FACW-

Belamcanda chinensis (L.) DC. NI NI NI NI NI NI UPL UPL

Bensoniella oregana (Abrams & Bacig.) Morton FAC+ FACW FAC+,FACW

Berberis thunbergii DC. FACU UPL FACU- UPL UPL UPL,FACU

Berberis vulgaris L. FACU UPL FACU UPL FACU NI NI UPL,FACU

Berchemia scandens (Hill) K. Koch FACW FACW FAC+ FAC+ FAC+,FACW

Bergia texana (Hook.) Seub. ex Walp. OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL

Berula erecta (Huds.) Coville NI OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL

Besseya arizonica Pennell FACW FACW

Besseya plantaginea (James) Rydb. NI FACW- FAC* NI FAC*,FACW-

Beta vulgaris L. NI UPL UPL NI UPL FACU UPL FACU UPL UPL,FACU

Betula alleghaniensis Britt. FAC FACU+ FAC FACU+,FAC

Betula lenta L. FACU FACU FACU

Betula nana L. OBL OBL OBL OBL OBL OBL OBL FAC FAC,OBL

Betula nigra L. FACW FACW FACW OBL FACW FACW,OBL

Betula occidentalis Hook. FACW FACW FACW FACW FACW FACW FAC FAC,FACW

Betula papyrifera Marsh. FACU NI FACU+ FACU FACU FACU FAC* FACU FACU,FAC*

Betula populifolia Marsh. FAC FAC FAC FAC

Betula pubescens ssp. pubescens Ehrh. FAC+ NI FACU* FACU*,FAC+

Betula pumila L. OBL OBL OBL OBL NI OBL

Betula X purpusii Schneid. NI OBL OBL

Betula X sandbergii Britt. OBL OBL NI OBL

Bidens aristosa (Michx.) Britt. FACW FACW FACW FACW FACW NI FACW

Bidens aurea (Ait.) Sherff OBL OBL

Bidens bidentoides (Nutt.) Britt. FACW+ FACW+

Bidens bigelovii Gray OBL FACW OBL FACW* FACW*,OBL



North Central

North Plains

Central Plains




Bidens cernua L. OBL OBL OBL OBL OBL OBL OBL OBL FACW+ OBL OBL FACW+,OBL

Bidens connata Muhl. ex Willd. FACW+ OBL OBL FACW+ OBL FACW+,OBL

Bidens coronata (L.) Britt. OBL OBL OBL OBL OBL OBL

Bidens discoidea (Torr. & Gray) Britt. FACW FACW FACW FACW+ FACW,FACW+

Bidens frondosa L. FACW FACW FACW FACW FACW FACW FACW FACW FACW+ FACW FACW FACW,FACW+

Bidens heterodoxa (Fern.) Fern. & St. John FACW+ NI NI FACW+

Bidens hyperborea Greene OBL OBL

Bidens laevis (L.) B.S.P. OBL OBL OBL OBL OBL OBL OBL OBL

Bidens leptocephala Sherff FACW FAC FAC,FACW

Bidens mitis (Michx.) Sherff OBL OBL OBL OBL

Bidens pilosa L. NI FACW- FACW FACW FACW FACU- NI FACU-,FACW

Bidens tenuisecta Gray NI NI NI FACW FACW FAC FAC,FACW

Bidens tripartita L. FACW+ FACW+ FACW+ FACW FACW FACW* FACW* FACW FACW OBL FACW*,OBL

Bidens vulgata Greene NI NI NI NI NI NI NI NI OBL OBL

Bigelowia nudata (Michx.) DC. FACW FACW FACW

Bigelowia nuttallii L.C. Anders. FACU- NI FACU-

Bignonia capreolata L. FAC+ FAC FACW FAC FAC,FACW

Blechnum divergens (Kunze) Mett. OBL OBL

Blechnum insularum Morton & Lellinger FAC FAC

Blechnum lineatum (Sw.) C. Christens. FAC FAC

Blechnum occidentale L. FAC* NI FAC NI FAC*,FAC

Blechnum polypodioides Raddi FACU FACU

Blechnum serrulatum L.C. Rich. FACW+ OBL FACW+,OBL

Blechnum spicant (L.) Roth FAC+ FAC+ FAC FAC,FAC+

Blechnum vulcanicum (Blume) Kuhn. FACU FACU

Blechum pyramidatum (Lam.) Urban FACW FACU FAC FACU,FACW

Blennosperma bakeri Heiser OBL OBL

Blennosperma nanum (Hook.) Blake FACW FACW

Blephilia hirsuta (Pursh) Benth. FACU- FACU* FACU-* FAC FACU* FACU-*,FAC

Bletia patula Hook. NI UPL UPL

Bletia purpurea (Lam.) DC. FAC* FAC*

Blutaparon vermiculare (L.) Mears FACW+ FACW- FACW+ FACW-,FACW+

Blyxa aubertii L.C. Rich. OBL OBL OBL

Blyxa octandra Planch. ex Thwaites OBL OBL

Bobea brevipes Gray FACU FACU

Bocconia frutescens L. FAC NI FAC



North Central

North Plains

Central Plains




Boehmeria cylindrica (L.) Sw. FACW+ FACW+ OBL OBL OBL FACW OBL OBL FACW,OBL

Boisduvalia cleistogama Curran OBL OBL

Boisduvalia densiflora (Lindl.) S. Wats. NI FACW* FACW FACW- OBL FACW-,OBL

Boisduvalia glabella (Nutt.) Walp. FACW FACW* FACW+ FACW+ OBL FACW*,OBL

Boisduvalia macrantha Heller FAC+ FACW FAC+,FACW

Boisduvalia stricta (Gray) Greene FACW FACW FACW FACW

Bolandra californica Gray NI FACW FACW

Bolandra oregana S. Wats. FACW FACW

Bolbitis aliena (Sw.) Alston FAC FAC

Bolbitis nicotianifolia (Sw.) Alston FAC FAC

Bolbitis pergamentacea (Maxon) Ching FAC FAC

Bolbitis portoricensis (Spreng.) Hennipman FAC FAC

Boltonia asteroides (L.) L'Hér. FACW FACW OBL FACW FACW FACW OBL FACW,OBL

Boltonia caroliniana (Walt.) Fern. FACW FACW FACW

Boltonia diffusa Ell. FAC FAC FACW FACW- FAC,FACW

Bontia daphnoides L. FACW FACW

Borrichia arborescens (L.) DC. FACW FACW FACW

Borrichia frutescens (L.) DC. OBL OBL FACW+ FACW+,OBL

Boschniakia rossica (Cham. & Schlecht.) Fedtsch. FACU FACU

Bothriochloa barbinodis (Lag.) Herter NI NI NI NI NI NI

Bothriochloa bladhii (Retz.) S.T. Blake NI NI NI NI NI FAC* FAC*

Botrychium biternatum (Sav.) Underwood FAC FAC FAC- FAC FAC-,FAC

Botrychium crenulatum W.H. Wagner NI NI NI NI FACW FACW

Botrychium dissectum Spreng. FAC FAC FAC FAC FAC FAC

Botrychium hesperium (Maxon & Clausen) W.H. Wagner & Lellinger NI NI NI FACU FACU

Botrychium jenmanii Underwood NI NI UPL UPL

Botrychium lanceolatum (Gmel.) Ångstr. FACW FAC* FACW NI FACW FACW FACW NI FAC FAC*,FACW

Botrychium lunaria (L.) Sw. FACW FACW FAC NI FACW FACW FAC FAC FACW FAC,FACW

Botrychium matricariifolium (A. Braun ex Dowell) A. Braun ex Koch FACU UPL FACU FACU UPL,FACU

Botrychium multifidum (Gmel.) Trev. FACU FAC FACU FAC FAC FAC FACU FAC FAC FAC FACU,FAC

Botrychium pinnatum St. John NI NI NI NI UPL NI UPL

Botrychium simplex E. Hitchc. FACU NI FAC FAC FAC FAC FACU FAC* FACU NI FACU,FAC

Botrychium virginianum (L.) Sw. FACU FACU FACU FACU FACU FACU FACU FACU FAC* FACU FACU,FAC*

Bowlesia incana Ruiz & Pavón FAC+ FACU* UPL NI NI FACU* UPL,FAC+

Boykinia aconitifolia Nutt. FACW FACW FACW

Boykinia major Gray FACW FACW FACW



North Central

North Plains

Central Plains




Boykinia occidentalis Torr. & Gray FAC FACW FAC,FACW

Boykinia rotundifolia Parry FACW FACW

Brachiaria arrecta (T. Dur. & Schinz) Stent FACW FACW

Brachiaria fasciculata (Sw.) Parodi FACU FAC- UPL UPL UPL,FAC-

Brachiaria mutica (Forsk.) Stapf NI FACW FACW NI FACW- FACW FACW-,FACW

Brachiaria plantaginea (Link) A.S. Hitchc. NI FAC FACU* UPL UPL,FAC

Brachiaria platyphylla (Munro ex Wright) Nash NI FAC+ FAC FAC FAC,FAC+

Brachiaria subquadripara (Trin.) A.S. Hitchc. NI NI FAC NI FAC

Brachyactis ciliata ssp. angusta (Lindl.) A.G. Jones NI FAC FACW FACW FACW* FACW FACW FAC,FACW

Brachyactis frondosa (Nutt.) A.G. Jones NI NI NI FACW* OBL FACW+ OBL FACW*,OBL

Brasenia schreberi J.F. Gmel. OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL

Braya glabella Richards. NI NI FACW FACW

Braya humilis (C.A. Mey.) B.L. Robins. UPL FACU UPL FAC UPL,FAC

Braya purpurascens (R. Br.) Bunge FAC FAC

Brickellia californica (Torr. & Gray) Gray FAC FAC FACU+ UPL FACU- FACU UPL,FAC

Brickellia greenei Gray FACU FAC FACU,FAC

Brintonia discoidea (Ell.) Greene FACU FACU

Briza media L. FAC FACU FAC NI NI FAC FACU,FAC

Briza minor L. FACW FAC FAC+ FAC FACU NI FACU,FACW

Brodiaea coronaria ssp. rosea (Greene) Niehaus FAC FAC

Brodiaea elegans Hoover FACU FACU FACU

Brodiaea filifolia S. Wats. FAC* FAC*

Brodiaea orcuttii (Greene) Baker OBL OBL

Brodiaea pallida Hoover FACW* FACW*

Bromus briziformis Fisch. & C.A. Mey. NI NI NI NI NI NI NI UPL NI UPL

Bromus canadensis Michx. FAC+ NI NI NI NI NI NI FAC+

Bromus ciliatus L. FACW FACW FACW FAC FACW NI FAC FACU FAC* FAC FACU* FACU*,FACW

Bromus hordeaceus ssp. hordeaceus L. UPL UPL UPL UPL UPL UPL UPL UPL FACU FACU- NI UPL,FACU

Bromus inermis Leyss. UPL UPL UPL FACU* FACU* NI NI NI FAC* FACU* NI UPL,FAC*


Bromus japonicus Thunb. ex Murr. FACU- FACU FACU FACU FACU FACU FACU UPL UPL FACU UPL,FACU

Bromus kalmii Gray FACU NI FAC- FACU FACU- NI NI NI FACU-,FAC-

Bromus latiglumis (Shear) A.S. Hitchc. FACW FACW+ FACW- FACW FACW NI NI NI NI FACW-,FACW+

Bromus pubescens Muhl. ex Willd. NI NI NI NI NI FACU NI NI NI FACU

Bromus rubens L. NI UPL UPL UPL FACU* UPL NI UPL,FACU*

Bromus vulgaris (Hook.) Shear NI FACU UPL FACU* UPL,FACU



North Central

North Plains

Central Plains




Broussaisia arguta Gaud. FAC FAC

Browallia americana L. NI UPL UPL

Brugmansia suaveolens (Humb. & Bonpl. ex Willd.) Bercht. & K. Presl NI FACW FACW

Bruguiera gymnorrhiza (L.) Lam. OBL OBL

Brunellia comocladiifolia Humb. & Bonpl. FACU FACU

Brunnichia ovata (Walt.) Shinners FACW FACW FACW FACW- FACW-,FACW

Brunsfelsia lactea Krug & Urban OBL OBL

Brunsfelsia portoricensis Krug & Urban FACW FACW

Buchenavia tetraphylla (Aubl.) Howard FAC FAC

Buchloe dactyloides (Nutt.) Engelm. FACU- FACU- FACU- FACU FACU- FACU UPL NI UPL,FACU

Buchnera americana L. FACU FAC+ FAC- FACU FAC FACU,FAC+

Buchnera longifolia Kunth FAC OBL FAC,OBL

Bucida buceras L. FACW FAC FAC,FACW

Bulbostylis barbata (Rottb.) C.B. Clarke FAC- NI FAC-

Bulbostylis capillaris (L.) Kunth ex C.B. Clarke FACU FAC FACU+ NI FAC FACU+ FACU NI FAC* FAC UPL UPL,FAC

Bulbostylis ciliatifolia (Ell.) Fern. FACU FACU FAC* FACU,FAC*

Bulbostylis funckii (Steud.) C.B. Clarke FACW+ FACW+

Bulbostylis juncoides (Vahl) Kükenth. FACW- FACW FAC FAC,FACW

Bulbostylis stenophylla (Ell.) C.B. Clarke FACU FACU

Bulbostylis warei (Torr.) C.B. Clarke FACU FACU

Burmannia biflora L. OBL OBL OBL NI* OBL

Burmannia capitata (J.F. Gmel.) Mart. OBL OBL FACW FACW,OBL

Burmannia flava Mart. OBL OBL

Burmannia ledermanii Jonker OBL OBL

Butomus umbellatus L. OBL OBL OBL OBL OBL

Byrsonima crassifolia (L.) Kunth FAC FAC

Byrsonima spicata (Cav.) Kunth FACW FACW

Cabomba caroliniana Gray OBL OBL OBL OBL OBL OBL

Cabomba haynesii Wiersema OBL OBL

Caesalpinia bonduc (L.) Roxb. FAC* FACU FACU- FACU-,FAC*

Caesalpinia decapetala (Roth) Alston FACU UPL UPL,FACU

Caesalpinia major (Medik.) Dandy & Exell UPL NI* FACU UPL,FACU

Cakile constricta Rodman FACU NI FACU

Cakile edentula (Bigelow) Hook. FACU FACU FACU FACU FACU FACU FACU

Cakile geniculata (B.L. Robins.) Millsp. FAC FAC FAC

Cakile lanceolata (Willd.) O.E. Schulz FAC FACW- UPL UPL,FACW-



North Central

North Plains

Central Plains




Cakile maritima Scop. NI FAC NI FACU FACW FACU,FACW

Caladium bicolor (Ait.) Vent. FACW FACW

Calamagrostis bolanderi Thurb. FACW FACW

Calamagrostis breweri Thurb. NI FACW FACW

Calamagrostis canadensis (Michx.) Beauv. FACW+ OBL OBL FACW+ OBL OBL OBL FACW+ FACW+ FAC FAC,OBL

Calamagrostis coarctata (Torr.) Eat. OBL OBL OBL

Calamagrostis crassiglumis Thurb. OBL OBL NI OBL

Calamagrostis deschampsioides Trin. FACW FACW

Calamagrostis epigeios (L.) Roth FAC FAC FAC* FAC* NI FAC*,FAC

Calamagrostis expansa (Munro ex Hbd.) A.S. Hitchc. FAC FAC

Calamagrostis hillebrandii (Munro ex Hbd.) A.S. Hitchc. FACW+ FACW+

Calamagrostis holmii Lange FACW FACW

Calamagrostis lapponica (Wahlenb.) Hartman FAC FAC

Calamagrostis nutkaensis (J. Presl) J. Presl ex Steud. FACW FACW FAC FAC,FACW

Calamagrostis perplexa Scribn. FAC+ FACW FAC+,FACW

Calamagrostis pickeringii Gray FACW FACW FACW

Calamagrostis scopulorum M.E. Jones NI NI FAC FAC FAC* FAC*,FAC

Calamagrostis scribneri Beal NI NI FACW* OBL FACW FACW*,OBL

Calamagrostis stricta (Timm) Koel. NI NI NI NI NI NI NI FACW NI FACW

Calamagrostis stricta ssp. inexpansa (Gray) C.W. Greene FACW+ FACW+ FACW FACW FACW FACW FACW FACW FACW FACW,FACW+

Calamagrostis stricta ssp. stricta var. stricta (Timm) Koel. FACW FACW+ OBL NI FACW FACW NI FACW FACW,OBL

Calamagrostis tweedyi (Scribn.) Scribn. ex Vasey NI NI

Calamintha arkansana (Nutt.) Shinners FACU FACW FACW FAC FAC- NI FACU,FACW

Calamovilfa arcuata K.E. Rogers FACW NI OBL NI FACW,OBL

Calamovilfa brevipilis (Torr.) Scribn. OBL OBL OBL

Calamovilfa curtissii (Vasey) Scribn. FAC FAC

Calandrinia ciliata (Ruiz & Pavón) DC. NI NI FACU* NI FACU* FACU*

Calanthe hololeuca Reichenb. f. FACU FACU

Calathea lutea (Aubl.) G.F.W. Mey. FACW FACW

Calibrachoa parviflora (Juss.) D'Arcy FACW FAC FACW FACW NI FACW FAC,FACW

Calla palustris L. OBL OBL OBL OBL OBL

Callicarpa americana L. FACU+ FACU- FACU FACU FACU-,FACU+

Callicarpa ampla Schauer FACW FACW

Callicarpa dichotoma (Lour.) K. Koch OBL* OBL NI OBL*,OBL

Callisia repens (Jacq.) L. NI NI FACU FACU

Callitriche hermaphroditica L. OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL



North Central

North Plains

Central Plains




Callitriche heterophylla Pursh OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL

Callitriche longipedunculata Morong OBL OBL

Callitriche marginata Torr. OBL OBL OBL

Callitriche nuttallii Torr. FACW+ FACW- FACW-,FACW+

Callitriche palustris L. OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL

Callitriche peploides Nutt. OBL OBL OBL OBL

Callitriche stagnalis Scop. OBL NI NI NI OBL NI OBL

Callitriche terrestris Raf. FACW+ FACW FACW FACW FACW- FACW-,FACW+

Callitriche trochlearis Fassett NI OBL OBL

Calluna vulgaris (L.) Hull FAC* NI FAC*

Calochortus excavatus Greene FACU* FACU*

Calochortus longebarbatus var. longebarbatus S. Wats. NI FAC* FAC*

Calochortus minimus Ownbey FAC FAC

Calochortus monanthus Ownbey FAC* FAC*

Calochortus nudus S. Wats. NI FAC FAC

Calochortus palmeri S. Wats. FACW FACW

Calochortus striatus Parish FACW FACW FACW

Calochortus uniflorus Hook. & Arn. FACW+ OBL FACW+,OBL

Calophyllum antillanum Britt. FACW FACW

Calophyllum cholobtaches Laut. OBL OBL

Calopogon barbatus (Walt.) Ames FACW+ FACW FACW,FACW+

Calopogon multiflorus Lindl. FACW FACW

Calopogon pallidus Chapman OBL OBL OBL

Calopogon tuberosus (L.) B.S.P. FACW+ OBL OBL NI OBL FACW+,OBL

Calopogonium caeruleum (Benth.) Suav. FACW FACW

Caltha leptosepala DC. NI NI OBL OBL OBL OBL OBL OBL

Caltha natans Pallas ex Georgi OBL OBL OBL

Caltha palustris L. OBL OBL OBL OBL OBL OBL NI OBL OBL

Calycanthus floridus L. FACU FACU+ NI FACU,FACU+

Calycanthus occidentalis Hook. & Arn. FAC FAC

Calycocarpum lyonii (Pursh) Gray FACW FACW- FACW FACW FACW FACW-,FACW

Calydorea coelestina (Bartr.) Goldblatt & Henrich FACW FACW

Calypso bulbosa (L.) Oakes FACW FACW FACW FACW FAC FACU FAC+ FACW FAC FACU,FACW

Calyptocarpus vialis Less. FAC FAC NI NI FAC

Calyptranthes krugii Kiaersk. OBL OBL

Calyptranthes luquillensis Alain OBL OBL



North Central

North Plains

Central Plains




Calyptranthes portoricensis Britt. OBL OBL

Calyptranthes sintenisii Kiaersk. FACW FACW

Calyptranthes triflora Alain FACW FACW

Calyptronoma rivalis (O.F. Cook) Bailey OBL OBL

Calystegia sepium (L.) R. Br. FAC- FAC FAC FAC FAC FAC- FAC FACU FAC OBL FACU,OBL

Calystegia soldanella (L.) R. Br. ex Roemer & J.A. Schultes NI NI NI UPL UPL

Camassia leichtlinii (Baker) S. Wats. FACW FACW- FACW FACW-,FACW

Camassia quamash (Pursh) Greene NI FACW FACW* FACW FACW*,FACW

Camassia scilloides (Raf.) Cory FAC FACW FAC+ FAC FAC FAC,FACW

Camelina microcarpa DC. NI NI NI NI NI NI NI NI NI FAC- FAC-

Camelina sativa (L.) Crantz UPL* FACU FAC- FACU FAC NI FAC FACU FAC- UPL UPL*,FAC

Camissonia andina (Nutt.) Raven NI NI UPL UPL

Camissonia breviflora (Torr. & Gray) Raven NI FAC FAC- FAC-,FAC

Camissonia subacaulis (Pursh) Raven NI FAC FACW- FACW FAC,FACW

Camissonia tanacetifolia ssp. tanacetifolia (Torr. & Gray) Raven FACU* NI FACU FACU*,FACU

Campanula aparinoides Pursh OBL OBL OBL OBL OBL NI OBL

Campanula californica (Kellogg) Heller OBL OBL

Campanula floridana S. Wats. ex Gray OBL OBL

Campanula lasiocarpa Cham. FACU UPL UPL,FACU

Campanula parryi Gray NI NI FAC- FACU FAC FACU,FAC

Campanula robinsiae Small FACW FACW

Campanula rotundifolia L. FACU NI FAC- FAC FAC FAC FAC FACU FACU+ FAC UPL UPL,FAC

Campanula scouleri Hook. ex A. DC. NI UPL NI UPL

Campanula uniflora L. NI NI NI FACU- FAC UPL UPL,FAC

Campanula wilkinsiana Greene FACW FACW

Campanulastrum americanum (L.) Small FACU FAC FAC FAC FAC FAC FACU,FAC

Campnosperma brevipetiolata Volk. FAC FAC

Campsis radicans (L.) Seem. ex Bureau FAC FAC FAC* FACU FAC- FAC NI FACU* FACU*,FAC

Campyloneurum angustifolium (Sw.) Fée UPL FACU- UPL,FACU-

Campyloneurum repens (Aubl.) K. Presl FACW FACW

Canavalia cathartica Thouars FACU FACU

Canavalia rosea (Sw.) DC. FAC- FAC* FAC FAC-,FAC

Canna flaccida Salisb. NI OBL OBL OBL

Canna X generalis Bailey (pro sp.) NI OBL OBL

Canna glauca L. OBL OBL OBL OBL

Canna indica L. NI OBL FACW+ FAC FACU FACU,OBL



North Central

North Plains

Central Plains




Canna pertusa Urban NI FACW FACW

Canna sylvestris Roscoe FACW FACW

Cannabis sativa L. FACU FACU FAC FAC- FACU- FAC* FAC* FACU FACU FACU* NI FACU-,FAC

Caperonia palustris (L.) St.-Hil. FACW FACW OBL FACW,OBL

Capparis cynophallophora L. FAC* UPL UPL,FAC*

Capparis flexuosa (L.) L. FAC* UPL UPL,FAC*

Capraria biflora L. FACW FAC FAC,FACW

Capsella bursa-pastoris (L.) Medik. FACU FACU+ FAC- FACU FACU FAC FAC FACU FACU FAC- FACU UPL UPL,FAC

Cardamine angulata Hook. FACW FACW FACW FACW

Cardamine angustata O.E. Schulz FACU FAC+ FAC- NI FACU,FAC+

Cardamine X anomala (Eames) K. Schum. (pro sp.) FACU* FACU*

Cardamine bellidifolia L. FACW NI NI* FAC FAC,FACW

Cardamine breweri S. Wats. NI NI OBL FACW+ FACW FACW,OBL

Cardamine bulbosa (Schreb. ex Muhl.) B.S.P. OBL OBL OBL OBL OBL OBL OBL

Cardamine californica (Nutt.) Greene NI UPL* UPL*

Cardamine californica var. californica (Nutt.) Greene FACW FACW

Cardamine californica var. pachystigma (S. Wats.) O.E. Schulz FAC* FAC*

Cardamine californica var. sinuata (Greene) O.E. Schulz FACW NI FACW

Cardamine clematitis Shuttlw. ex Gray OBL OBL OBL

Cardamine concatenata (Michx.) Sw. FACU FACU FACU FACU FACU FACU FACU

Cardamine constancei Detling FAC FAC

Cardamine cordifolia Gray NI OBL FACW+ FACW FACW,OBL

Cardamine digitata Richards. FAC FAC

Cardamine diphylla (Michx.) Wood FACU* UPL FAC* UPL,FAC*

Cardamine douglassii Britt. FACW+ OBL FACW FACW,OBL

Cardamine flagellifera O.E. Schulz NI OBL OBL

Cardamine flexuosa With. OBL* FACU FACU* NI FAC FACU*,OBL*

Cardamine gemmata Greene FACW+ OBL* FACW+,OBL*

Cardamine hirsuta L. FACU FAC FACU FAC UPL NI UPL,FAC

Cardamine X incisa K. Schum. (pro sp.) FACU* FACU*

Cardamine longii Fern. OBL OBL OBL

Cardamine lyallii S. Wats. FACW FACW NI* FACW

Cardamine macrocarpa Brandeg. FACW FACW

Cardamine micranthera Rollins OBL OBL

Cardamine microphylla M.F. Adams FACW FACW

Cardamine nuttallii var. covilleana (O.E. Schulz) Rollins NI FACU* FACU*



North Central

North Plains

Central Plains




Cardamine nuttallii var. nuttallii Greene NI FACU* FACU*

Cardamine occidentalis (S. Wats. ex B.L. Robins.) T.J. Howell FACW+ OBL FACW* FACW*,OBL

Cardamine oligosperma Nutt. NI NI NI FAC* FAC FACW FACW FAC*,FACW

Cardamine parviflora L. FACU FACU FAC FAC FACW FACW NI NI FACU,FACW

Cardamine penduliflora O.E. Schulz OBL OBL

Cardamine pensylvanica Muhl. ex Willd. OBL FACW+ FACW+ OBL OBL FACW OBL FACW FACW OBL FAC FAC,OBL

Cardamine pratensis L. OBL OBL OBL OBL

Cardamine purpurea Cham. & Schlecht. FACW FACW

Cardamine regeliana Miq. OBL OBL

Cardamine rotundifolia Michx. OBL OBL NI OBL

Cardamine rupicola (O.E. Schulz) C.L. Hitchc. FAC- FAC-

Cardaria pubescens (C.A. Mey.) Jarmolenko NI NI NI NI NI NI NI UPL UPL

Cardiospermum halicacabum L. FACU* FAC FAC FAC- FAC UPL UPL UPL,FAC

Cardiospermum microcarpum Kunth FAC* NI FAC*

Carex aboriginum M.E. Jones OBL* OBL*

Carex abrupta Mackenzie NI NI FAC* FAC*

Carex abscondita Mackenzie FAC FACW FACU NI FACU,FACW

Carex acutiformis Ehrh. OBL OBL OBL

Carex adelostoma Krecz. OBL OBL

Carex aenea Fern. NI UPL UPL FACU* FACW* FAC* UPL,FACW*

Carex X aestivaliformis Mackenzie FAC* NI NI FAC*

Carex alata Torr. OBL OBL OBL OBL OBL

Carex albicans var. albicans Willd. ex Spreng. NI NI NI UPL NI UPL

Carex albicans var. australis (Bailey) J. Rettig UPL FACU- UPL FACU UPL,FACU

Carex albida Bailey OBL OBL

Carex albolutescens Schwein. FACW FAC+ FACW FACW FAC+,FACW

Carex albonigra Mackenzie NI NI FAC* UPL FACU UPL* FACU UPL*,FAC*

Carex alligata Boott FACW+ FACW+

Carex alma Bailey OBL OBL FACW* FACW*,OBL

Carex alopecoidea Tuckerman FACW NI FACW+ OBL FACW,OBL

Carex amphibola Steud. FAC FACW FAC+ FAC+ FACW OBL FAC,OBL

Carex amplifolia Boott NI OBL FACW+ OBL FACW+,OBL

Carex angustata Boott NI FACW+ FACW FACW,FACW+

Carex annectens (Bickn.) Bickn. FACW FACW FACW FAC+ FACW+ FAC+,FACW+

Carex anthoxanthea J.& K. Presl NI FACW FACW

Carex aperta Boott NI FACW FACW



North Central

North Plains

Central Plains




Carex aquatilis Wahlenb. OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL

Carex arcta Boott OBL OBL NI OBL OBL OBL OBL

Carex arctiformis Mackenzie OBL OBL

Carex atherodes Spreng. OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL

Carex athrostachya Olney FACW NI NI FACW FAC FACW FACW FAC FAC,FACW

Carex atlantica Bailey FACW+ FACW FACW OBL FACW,OBL

Carex atlantica ssp. capillacea (Bailey) Reznicek OBL OBL OBL OBL OBL

Carex atratiformis Britt. FACW- FACW- NI FAC FAC,FACW-

Carex atrofusca Schkuhr FACW FACW

Carex atrosquama Mackenzie NI FACU NI FACW FACU,FACW

Carex aurea Nutt. FACW FACW+ FACW FACW OBL OBL OBL FACW+ OBL FACW FACW,OBL

Carex baileyi Britt. OBL FACW NI FACW,OBL

Carex barbarae Dewey FAC+ FACW FAC+,FACW

Carex barrattii Schwein. & Torr. OBL OBL OBL

Carex bebbii Olney ex Fern. OBL OBL OBL OBL OBL OBL OBL OBL

Carex bella Bailey FAC- NI FACU FACU FACU,FAC-

Carex bicknellii Britt. FACU FAC-* FAC- FACW FACU FACW FAC* FACU,FACW

Carex bicolor Bellardi ex All. OBL OBL

Carex bigelowii Torr. ex Schwein. FACW- NI NI NI FACW FAC* FAC FAC*,FACW

Carex bipartita All. NI NI OBL OBL OBL OBL

Carex blanda Dewey FAC FAC- FAC FACU* FACU* FAC NI FACU*,FAC

Carex bolanderi Olney FACW* FACW FAC FACW FAC,FACW

Carex bonanzensis Britt. FACW* FACW FACW*,FACW

Carex breviligulata Mackenzie FACW+ OBL FACW+,OBL

Carex brevior (Dewey) Mackenzie ex Lunell UPL OBL FAC FACU FAC OBL FACW+ FAC FAC UPL,OBL

Carex brittoniana Bailey NI FACW OBL FACW,OBL

Carex bromoides Schkuhr ex Willd. FACW+ FACW FACW+ NI FACW,FACW+

Carex brunnescens (Pers.) Poir. FACW FAC FACW FAC NI NI FACW OBL FAC FAC,OBL

Carex bullata Schkuhr ex Willd. OBL OBL OBL

Carex bushii Mackenzie FACW FACW FACW FAC OBL FAC,OBL

Carex buxbaumii Wahlenb. OBL OBL OBL OBL OBL OBL OBL OBL OBL FACW FACW,OBL

Carex californica Bailey OBL FAC* FAC*,OBL

Carex canescens L. OBL OBL OBL OBL NI OBL OBL FACW+ OBL OBL FACW+,OBL

Carex capillaris L. FACW FACW FACW NI FACW FACW+ FACW FACW FACW,FACW+

Carex capitata L. FAC NI FACW* FACW FAC FACW FAC FAC,FACW

Carex caroliniana Schwein. FACU FACW FAC FAC OBL FACU,OBL



North Central

North Plains

Central Plains




Carex castanea Wahlenb. OBL FACW+ FACW+,OBL

Carex cephaloidea (Dewey) Dewey FAC+ FACU+ FACU+,FAC+

Carex cephalophora Muhl. ex Willd. FACU FAC FACU NI FACU OBL UPL* UPL*,OBL

Carex chapmanii Steud. FACW FACW FACW

Carex cherokeensis Schwein. FACW FACW- FACW FACW- FACW-,FACW

Carex chordorrhiza Ehrh. ex L. f. OBL OBL NI OBL OBL OBL

Carex collinsii Nutt. OBL OBL OBL

Carex comosa Boott OBL OBL OBL OBL OBL OBL OBL OBL OBL

Carex complanata Torr. & Hook. FACU FAC+ FACU- OBL FACU-,OBL

Carex concinna R. Br. FACU+ FACU FACU FAC- FAC FACU,FAC

Carex conjuncta Boott FACW FAC+ FACW FAC+ FAC FAC,FACW

Carex conoidea Schkuhr ex Willd. FACU FACW+ FACW+ FAC* FACU,FACW+

Carex crawei Dewey FACW OBL FACW FACW FACW FACW OBL FACW FACW,OBL

Carex crawfordii Fern. FAC FAC- FAC+ NI FAC FAC FAC-,FAC+

Carex crebriflora Wieg. FACW FACW- OBL FACW-,OBL

Carex crinita Lam. OBL FACW+ FACW+ OBL OBL FACW+,OBL

Carex cristatella Britt. FACW FAC FACW+ FACW FACW FAC,FACW+

Carex crus-corvi Shuttlw. ex Kunze OBL OBL OBL OBL OBL OBL

Carex cryptolepis Mackenzie OBL OBL OBL

Carex cumulata (Bailey) Fern. FACU FACU- FACU-,FACU

Carex cusickii Mackenzie ex Piper & Beattie OBL OBL OBL OBL

Carex davisii Schwein. & Torr. FAC- FAC FAC+ FAC FACU FAC* FACU,FAC+

Carex debilis Michx. FAC FACW FACW OBL FAC,OBL

Carex decomposita Muhl. OBL OBL OBL OBL OBL

Carex densa (Bailey) Bailey OBL OBL OBL

Carex deweyana Schwein. FACU FACU- FACU UPL FACU* FACU FACU* UPL,FACU

Carex diandra Schrank OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL

Carex digitalis Willd. UPL FACU UPL UPL UPL,FACU

Carex disperma Dewey FACW+ OBL FACW NI OBL FACW FACW OBL FACW* FACW*,OBL

Carex divisa Huds. FACW+ OBL FACW+,OBL

Carex douglasii Boott FAC FACU FAC FAC FACU FAC- FACU FACU,FAC

Carex dudleyi Mackenzie FACW FACW

Carex eburnea Boott FACU FACU FACU- FACU FACU FACU+ FACU FACU-,FACU+

Carex echinata Murr. OBL* OBL OBL NI OBL NI OBL OBL OBL OBL*,OBL

Carex echinata ssp. echinata Murr. NI NI NI NI NI OBL OBL OBL NI OBL OBL

Carex echinata ssp. phyllomanica (W. Boott) Reznicek OBL OBL OBL OBL



North Central

North Plains

Central Plains




Carex eleusinoides Turcz. ex C.A. Mey. NI FACW FACW FACW

Carex elliottii Schwein. & Torr. OBL OBL

Carex emoryi Dewey OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL

Carex exilis Dewey OBL OBL OBL OBL

Carex exsiccata Bailey OBL OBL OBL OBL OBL

Carex extensa Goodenough OBL OBL

Carex festucacea Schkuhr ex Willd. FAC FACW FAC FACW FACW- FACW* NI FAC,FACW

Carex feta Bailey FACW OBL FACW,OBL

Carex fissa Mackenzie FACW+ FACW- OBL FACW-,OBL

Carex fissuricola Mackenzie FACW FACW FAC* FAC*,FACW

Carex flaccosperma Dewey FAC FAC+ FACW FACW- FACW FAC,FACW

Carex flava L. OBL OBL NI OBL OBL OBL

Carex foenea Willd. NI NI UPL UPL UPL UPL FACU NI UPL,FACU

Carex folliculata L. OBL NI NI OBL

Carex formosa Dewey FAC FACW- NI FAC,FACW-

Carex frankii Kunth OBL OBL OBL OBL OBL OBL OBL

Carex garberi Fern. FACW FACW FACW FACW FACW- FACW FACW FACW-,FACW

Carex gigantea Rudge OBL OBL OBL OBL OBL

Carex gigas (Holm) Mackenzie NI FACW FACW

Carex glaucescens Ell. OBL OBL OBL OBL

Carex gmelinii Hook. & Arn. FAC FAC

Carex gracillima Schwein. FACU FACU* FACU* NI FACU*,FACU

Carex granularis Muhl. ex Willd. FACW+ FACW FACW+ OBL FACW OBL NI FACW,OBL

Carex grayi Carey FACW+ FACW FACW+ FACW FACW FACW,FACW+

Carex gynandra Schwein. OBL FACW* NI FACW*,OBL

Carex gynocrates Wormsk. ex Drej. OBL OBL OBL OBL OBL OBL OBL

Carex gynodynama Olney FAC NI* FAC

Carex halliana Bailey NI UPL UPL

Carex hallii Olney NI FAC FACW- OBL FACW UPL UPL,OBL

Carex harfordii Mackenzie OBL OBL

Carex hassei Bailey NI FACW FACW FACW FACW FACW

Carex haydeniana Olney NI NI FACU* FAC* FAC- FACW* FACU*,FACW*

Carex haydenii Dewey OBL OBL OBL FACW+ FACW+,OBL

Carex heleonastes L. f. NI OBL OBL

Carex hendersonii Bailey FAC FAC FAC

Carex heteroneura W. Boott NI FACW FACU* FAC FAC FACU*,FACW



North Central

North Plains

Central Plains




Carex heteroneura var. brevisquama F.J. Herm. NI NI NI FACU NI FACU

Carex hirtissima W. Boott OBL* OBL*

Carex holostoma Drej. NI NI OBL OBL

Carex hoodii Boott UPL NI FACU FAC FAC* UPL,FAC

Carex hormathodes Fern. OBL NI NI OBL

Carex hyalina Boott FACW FACW FACW

Carex hyalinolepis Steud. OBL OBL OBL OBL OBL OBL

Carex hystericina Muhl. ex Willd. OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL

Carex hystricina Muhl. NI NI NI NI OBL OBL

Carex idahoa Bailey FACW FACW

Carex illota Bailey NI NI OBL FAC FACW FAC,OBL

Carex incurviformis Mackenzie NI NI FAC NI NI NI FAC

Carex interior Bailey OBL OBL OBL OBL OBL OBL FACW FACW- OBL OBL FACW-,OBL

Carex interrupta Boeckl. OBL OBL

Carex intumescens Rudge FACW+ FACW FACW+ OBL OBL NI FACW,OBL

Carex jonesii Bailey FACW FACW+ FACW FACW,FACW+

Carex joorii Bailey OBL OBL OBL OBL OBL

Carex kauaiensis R.W. Krauss FAC FAC

Carex lacustris Willd. OBL OBL OBL OBL OBL NI OBL

Carex laeviconica Dewey OBL OBL OBL OBL OBL

Carex laeviculmis Meinsh. NI FACW FACW FACW* FACW FACW*,FACW

Carex laevivaginata (Kükenth.) Mackenzie OBL OBL OBL OBL OBL

Carex lanuginosa Michx. OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL

Carex lapponica O.F. Lang NI NI NI NI OBL OBL

Carex lasiocarpa Ehrh. OBL OBL OBL OBL OBL OBL NI OBL OBL

Carex laxa Wahlenb. OBL OBL

Carex laxiflora Lam. FACU* FACU* UPL* NI NI UPL*,FACU*

Carex lemmonii W. Boott OBL OBL

Carex lenticularis Michx. OBL OBL NI NI NI OBL FACW+ OBL OBL FACW+,OBL

Carex lenticularis var. limnophila (Holm) Cronq. OBL OBL OBL OBL

Carex lenticularis var. lipocarpa (Holm) L.A. Standley NI NI OBL OBL FACW+ OBL OBL FACW+,OBL

Carex leporina L. FAC FAC FAC FACW OBL FAC,OBL

Carex leporinella Mackenzie NI NI FACW FACW

Carex leptalea Wahlenb. OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL

Carex leptonervia (Fern.) Fern. FACW FACW FAC FAC,FACW

Carex leptopoda Mackenzie NI FACW* FACW FAC FACW FAC,FACW



North Central

North Plains

Central Plains




Carex limosa L. OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL

Carex livida (Wahlenb.) Willd. OBL OBL NI NI OBL OBL OBL OBL

Carex loliacea L. OBL OBL

Carex lonchocarpa Willd. NI OBL NI OBL

Carex longii Mackenzie OBL OBL OBL OBL OBL

Carex louisianica Bailey OBL OBL OBL OBL OBL

Carex lugens Holm OBL OBL

Carex lupuliformis Sartwell ex Dewey FACW+ OBL FACW+ OBL FACW+,OBL

Carex lupulina Muhl. ex Willd. OBL OBL OBL OBL OBL OBL

Carex lurida Wahlenb. OBL OBL OBL OBL OBL

Carex luzulifolia W. Boott FACW FACW

Carex luzulina Olney OBL OBL OBL OBL

Carex lyngbyei Hornem. OBL OBL OBL OBL

Carex mackenziei Krecz. NI OBL OBL

Carex macloviana d'Urv. NI NI NI NI NI FAC FACU FACU,FAC

Carex macloviana ssp. subfusca (W. Boott) T. Koyama NI FACU- FACU FACU FACU FACU-,FACU

Carex macrocephala Willd. ex Spreng. FAC- FAC FAC-,FAC

Carex macrochaeta C.A. Mey. FACW- FACW FACW-,FACW

Carex magellanica ssp. magellanica Lam. OBL OBL NI OBL OBL OBL OBL

Carex X mainensis Porter ex Britt. (pro sp.) FAC FAC

Carex marina Dewey OBL OBL

Carex maritima Gunn. NI FAC FAC

Carex meadii Dewey FAC FAC FAC FACU FAC FACW OBL FACU,OBL

Carex membranacea Hook. FACW FACW

Carex mendocinensis Olney FACW FACW FACW

Carex mertensii Prescott ex Bong. NI FAC FAC FACW FAC,FACW

Carex michauxiana Boeckl. OBL OBL OBL

Carex michrochaeta Holm FACU FACU

Carex michrochaeta ssp. nesophila (Holm) E. Murr. FACW FACW

Carex microdonta Torr. & Hook. FACW FAC* FACW OBL NI FAC*,OBL

Carex microglochin Wahlenb. NI NI OBL FACW+ OBL FACW+,OBL

Carex microptera Mackenzie FAC NI FACW FAC FAC+ FAC* FAC*,FACW

Carex misandra R. Br. NI FACU FACU FAC FACU,FAC

Carex mitchelliana M.A. Curtis OBL FACW* FACW*,OBL

Carex molesta Mackenzie ex Bright FACU FAC- FAC+ FACW FAC NI NI NI FACU,FACW

Carex montis-eeka Hbd. OBL OBL



North Central

North Plains

Central Plains




Carex muskingumensis Schwein. OBL OBL OBL FACW OBL FACW,OBL

Carex nardina Fries NI NI UPL FACU FACU UPL,FACU

Carex nebrascensis Dewey OBL OBL OBL OBL OBL OBL OBL OBL

Carex nelsonii Mackenzie NI OBL FAC FAC,OBL

Carex nervina Bailey FACW FACW- FAC* FAC*,FACW

Carex neurophora Mackenzie NI NI FACW FACW FACW* FACW*,FACW

Carex nigra (L.) Reichard FACW+ FACW* FACW*,FACW+

Carex nigricans C.A. Mey. NI NI FACW FACW FACW FACW FACW

Carex nigromarginata Schwein. UPL FACU- UPL FACU UPL,FACU

Carex normalis Mackenzie FACU FACW- FACW FAC FACW- OBL FACU,OBL

Carex norvegica Retz. NI FACW NI NI FACW* FACW FACW FACW FACW FACW*,FACW

Carex norvegica ssp. inferalpina (Wahlenb.) Hultén NI FACW NI NI FACW FACW FACW FACW FACW

Carex nova Bailey NI FACW FAC FAC* FAC*,FACW

Carex novae-angliae Schwein. FACU* UPL UPL,FACU*

Carex nudata W. Boott FACW FACW FACW

Carex obispoensis Stacey NI*

Carex obnupta Bailey OBL OBL OBL

Carex oklahomensis Mackenzie OBL OBL FACW FACW+ FACW,OBL

Carex oligosperma Michx. OBL OBL OBL NI OBL

Carex ovalis Goodenough FACW NI FACW

Carex oxylepis Torr. & Hook. FACW FACW- FACW OBL FACW-,OBL

Carex pachystachya Cham. ex Steud. NI NI FACU FAC FACW FAC FACU,FACW

Carex paleacea Schreb. ex Wahlenb. OBL OBL

Carex pansa Bailey FAC* FACU FACU,FAC*

Carex parryana Dewey FACW FACW FACW FAC+ FACW FAC+,FACW

Carex pauciflora Lightf. OBL OBL OBL OBL OBL

Carex paysonis Clokey NI FACU FACU FACU

Carex pelocarpa F.J. Herm. NI NI FACU FAC FACU,FAC

Carex petasata Dewey NI NI NI NI NI FAC NI FAC

Carex phaeocephala Piper NI NI UPL FACU FACU* FAC UPL,FAC

Carex pluriflora Hultén OBL OBL OBL

Carex podocarpa R. Br. NI FAC FAC FAC FAC

Carex polymorpha Muhl. FACU FACU

Carex praeceptorum Mackenzie NI NI OBL FACW+ OBL* FACW+,OBL

Carex praegracilis W. Boott UPL* FACW FACW FACW FACW FACW+ FACW- FACW FACW- FACW UPL*,FACW+

Carex prairea Dewey ex Wood FACW FACW+ OBL OBL OBL FACW,OBL



North Central

North Plains

Central Plains




Carex prasina Wahlenb. OBL OBL OBL OBL

Carex praticola Rydb. FAC FAC FAC+ FACW FAC* FACU* FACW NI FAC FACU*,FACW

Carex preslii Steud. NI FACU FACU FACU* FACU FACU*,FACU

Carex projecta Mackenzie FACW FACW+ FACW+ FACW,FACW+

Carex pseudocyperus L. OBL OBL OBL OBL

Carex pseudoscirpoidea Rydb. NI FACU FAC* FACU* FACU*,FAC*

Carex pyrenaica Wahlenb. NI NI FACW FAC NI FAC FAC,FACW

Carex pyrenaica ssp. micropoda (C.A. Mey.) Hultén FACW FACW

Carex ramenskii Komarov OBL OBL

Carex rariflora (Wahlenb.) Sm. OBL NI OBL OBL

Carex raymondii Calder FAC FAC

Carex raynoldsii Dewey NI NI FAC* FACU FAC NI FACU,FAC

Carex recta Boott OBL OBL

Carex reniformis (Bailey) Small FACW FACW OBL* OBL FACW,OBL

Carex retrorsa Schwein. FACW+ OBL OBL OBL FAC FAC,OBL

Carex richardsonii R. Br. UPL UPL FAC- NI UPL,FAC-

Carex rostrata Stokes OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL

Carex rotundata Wahlenb. OBL OBL

Carex rupestris All. FACU UPL UPL FACU FACU UPL,FACU

Carex sartwelliana Olney OBL OBL

Carex sartwellii Dewey OBL FACW* FACW+ FACW OBL OBL OBL FACW*,OBL

Carex saxatilis L. FACW+ NI NI OBL FACW+ FACW FACW,OBL

Carex scabrata Schwein. OBL OBL OBL OBL

Carex schottii Dewey OBL OBL

Carex schweinitzii Dewey ex Schwein. OBL OBL OBL OBL

Carex scirpoidea Michx. FACU FACU NI NI FACW* FAC* FACU FACU,FACW*

Carex scoparia Schkuhr ex Willd. FACW FACW FACW FACW FACW FACW FACW FACW FACW FACW

Carex scopulorum Holm NI NI NI FACW FACW FACW FACW

Carex senta Boott OBL OBL OBL

Carex seorsa Howe FACW FACW FACW+ FACW,FACW+

Carex serratodens W. Boott OBL* FACW FACW FACW,OBL*

Carex sheldonii Mackenzie OBL OBL OBL OBL

Carex shortiana Dewey FAC FACW FACW+ FACW FACW+ FAC,FACW+

Carex simulata Mackenzie OBL NI OBL OBL OBL FACW FACW,OBL

Carex sparganioides Muhl. ex Willd. FACU FAC+ FAC FAC FAC FAC+ FACU,FAC+

Carex spectabilis Dewey NI NI FACW* FACW FACW FACW*,FACW



North Central

North Plains

Central Plains




Carex specuicola J.T. Howell OBL NI OBL

Carex spissa Bailey FAC* FAC* FAC*

Carex sprengelii Dewey ex Spreng. FACU FAC FACU FAC- FAC FAC FACU,FAC

Carex squarrosa L. FACW FACW OBL NI FACW OBL NI FACW,OBL

Carex sterilis Willd. OBL OBL OBL OBL NI OBL

Carex stipata Muhl. ex Willd. OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL

Carex straminea Willd. ex Schkuhr OBL OBL OBL OBL OBL

Carex striata var. brevis Bailey OBL NI OBL

Carex striata var. striata Michx. OBL OBL

Carex stricta Lam. OBL OBL OBL OBL OBL OBL OBL

Carex styloflexa Buckl. FACW- FACW FAC OBL FAC,OBL

Carex stylosa C.A. Mey. FACW+ FACW FACW,FACW+

Carex subbracteata Mackenzie FACW+ FACW+

Carex suberecta (Olney) Britt. OBL NI OBL OBL

Carex X subimpressa Clokey (pro sp.) OBL OBL OBL OBL

Carex subnigricans Stacey FAC FAC FAC FAC

Carex subspathacea Wormsk. ex Hornem. OBL OBL

Carex swanii (Fern.) Mackenzie FACU UPL FACU UPL* UPL*,FACU

Carex sychnocephala Carey FACW FACW+ FACW NI FACW FACW FACW FACW,FACW+

Carex tenera Dewey FAC FACW FAC+ FACW FACW NI NI FACW* FAC,FACW

Carex teneriformis Mackenzie NI NI FAC- FAC-

Carex tenuiflora Wahlenb. OBL OBL NI OBL OBL

Carex tetanica Schkuhr FACW FACW FACW FACW FACW+ FACW,FACW+

Carex thunbergii Steud. OBL OBL

Carex thurberi Dewey FAC FAC

Carex tincta (Fern.) Fern. UPL UPL NI FAC UPL,FAC

Carex tiogana D. Taylor & J.D. Mastrogiuseppe FACW* FACW*

Carex torreyi Tuckerman FACU* UPL UPL UPL FAC UPL,FAC

Carex torta Boott ex Tuckerman FACW OBL OBL OBL* FACW,OBL

Carex triangularis Boeckl. NI FACW OBL FACW OBL FACW,OBL

Carex tribuloides Wahlenb. FACW+ FACW+ FACW+ NI FACW OBL FACW FACW,OBL

Carex trichocarpa Muhl. ex Willd. OBL OBL OBL NI OBL

Carex trisperma Dewey OBL OBL OBL OBL

Carex tuckermanii Dewey OBL OBL OBL

Carex tumulicola Mackenzie FACU FACU* FACU*,FACU

Carex turgescens Torr. OBL OBL



North Central

North Plains

Central Plains




Carex typhina Michx. FACW+ OBL OBL OBL FACW+,OBL

Carex unilateralis Mackenzie FACW FACW FACW

Carex ursina Dewey FACW FACW

Carex utriculata Boott NI NI NI NI NI NI OBL OBL NI OBL OBL

Carex vaginata Tausch OBL OBL OBL OBL

Carex venusta Dewey OBL FACW+ FACW+,OBL

Carex vernacula Bailey NI FACW FAC+ FAC FAC,FACW

Carex verrucosa Muhl. OBL OBL OBL OBL

Carex vesicaria L. OBL OBL OBL OBL OBL OBL OBL OBL NI OBL

Carex vexans F.J. Herm. FACW* FACW*

Carex vicaria Bailey OBL OBL

Carex viridula Michx. OBL OBL OBL OBL OBL OBL FACW+ OBL OBL FACW+,OBL

Carex vulpinoidea Michx. OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL

Carex wiegandii Mackenzie OBL NI OBL

Carex willdenowii Schkuhr ex Willd. UPL FACW FACU-* OBL UPL,OBL

Carex williamsii Britt. FAC FAC

Carex woodii Dewey UPL UPL FAC NI NI NI UPL,FAC

Carphephorus carnosus (Small) C.W. James FACW+ FACW+

Carphephorus corymbosus (Nutt.) Torr. & Gray FACU FACU

Carphephorus odoratissimus (J.F. Gmel.) Herbert FACW FACW

Carphephorus paniculatus (J.F. Gmel.) Herbert NI FACW- FACW-

Carphephorus pseudoliatris Cass. OBL OBL

Carphephorus tomentosus (Michx.) Torr. & Gray FACW FACW FACW

Carpinus caroliniana Walt. FAC FAC FAC FAC FAC

Carpobrotus aequilateralus (Haw.) N.E. Br. NI FAC* FAC*

Carum carvi L. NI NI NI NI NI FACU NI FACU

Carya aquatica (Michx. f.) Nutt. OBL OBL OBL OBL OBL

Carya cordiformis (Wangenh.) K. Koch FACU+ FAC FAC FAC FAC FACU+,FAC

Carya glabra (P. Mill.) Sweet FACU- FACU FACU FACU NI FACU-,FACU

Carya illinoinensis (Wangenh.) K. Koch FACU FAC+ FACW FAC FAC+ FACU,FACW

Carya laciniosa (Michx. f.) G. Don FAC FACW- FACW FAC FAC FAC,FACW

Carya X lecontei Little NI OBL OBL OBL OBL

Carya myristiciformis (Michx. f.) Nutt. FACW- FACW- FACW-

Carya ovalis (Wangenh.) Sarg. NI FACU UPL* UPL UPL*,FACU

Carya ovata (P. Mill.) K. Koch FACU FACU FACU FACU FACU FACU+ FACU,FACU+

Casasia clusiifolia (Jacq.) Urban FAC* FAC*



North Central

North Plains

Central Plains




Casearia aculeata Jacq. FACW FACW

Casearia arborea (L.C. Rich.) Urban FAC FAC

Casearia decandra Jacq. FAC FAC

Casearia guianensis (Aubl.) Urban FAC FAC

Casearia sylvestris Sw. FAC FAC

Cassiope mertensiana (Bong.) D. Don NI FACU+ FACU* UPL UPL,FACU+

Cassiope tetragona (L.) D. Don NI FACU+ FACU FACU,FACU+

Cassipourea guianensis Aubl. FAC FAC

Cassytha filiformis L. FAC- FAC* UPL FACU UPL,FAC*

Castanopsis sempervirens (Kellogg) Dudley ex Merriam NI NI UPL UPL

Castilleja ambigua ssp. ambigua Hook. & Arn. FACW+ OBL FACW+,OBL

Castilleja campestris ssp. campestris (Benth.) Chuang & Heckard FACU OBL* FACU,OBL*

Castilleja campestris ssp. succulenta (Hoover) Chuang & Heckard FACW FACW

Castilleja caudata (Pennell) Rebr. FAC FAC

Castilleja coccinea (L.) Spreng. FAC FAC FAC FAC FACU FACU,FAC

Castilleja elata Piper FACW FACW FACW

Castilleja exilis A. Nels. NI NI OBL OBL OBL OBL OBL

Castilleja hyetophila Pennell OBL OBL

Castilleja indivisa Engelm. NI FAC- FAC-

Castilleja lemmonii Gray NI FACW FACW

Castilleja lineata Greene NI FACW FACW FACW

Castilleja miniata Dougl. ex Hook. FAC NI FACU FAC FAC FACW FACU FACU,FACW

Castilleja miniata var. miniata Dougl. ex Hook. NI NI NI FACU OBL* NI FACU,OBL*

Castilleja minor (Gray) Gray NI OBL OBL OBL OBL

Castilleja occidentalis Torr. NI NI FAC FACU FAC+ FACU,FAC+

Castilleja parviflora Bong. FAC NI FACW FAC,FACW

Castilleja raupii Pennell FAC FAC

Castilleja rhexiifolia Rydb. NI NI FAC FACU FAC FACU,FAC

Castilleja salsuginosa N. Holmgren FAC* FAC*

Castilleja stenantha Gray NI OBL OBL

Castilleja suksdorfii Gray FACW FACW

Castilleja sulphurea Rydb. FAC NI FAC+ FACU FACW- FACU,FACW-

Castilleja tenuis (Heller) Chuang & Heckard FAC FACU- FAC FAC FACU-,FAC

Castilleja uliginosa Eastw. OBL OBL

Castilleja unalaschcensis (Cham. & Schlecht.) Malte FAC FAC

Casuarina equisetifolia L. FACU FAC FACU FACU,FAC



North Central

North Plains

Central Plains




Casuarina glauca Sieb. ex Spreng. FACU NI FACU

Casuarina lepidophloia F. Muell. NI*

Catabrosa aquatica (L.) Beauv. OBL OBL OBL OBL OBL OBL OBL OBL

Catalpa bignonioides Walt. UPL FAC- FACU NI FAC- UPL UPL NI UPL,FAC-

Catalpa speciosa (Warder) Warder ex Engelm. FAC FACU FACU FACU FACU FAC- NI FACU,FAC

Catharanthus roseus (L.) G. Don UPL NI NI FACU NI UPL,FACU

Cayaponia americana (Lam.) Cogn. NI FAC FAC

Cayaponia quinqueloba (Raf.) Shinners NI FAC+ FACW FAC FAC,FACW

Cayaponia racemosa (P. Mill.) Cogn. UPL FAC UPL,FAC

Cayratia trifolia (L.) Domin FAC FAC

Ceanothus sanguineus Pursh NI NI UPL UPL UPL

Cecropia peltata L. FAC FAC

Celastrus orbiculata Thunb. FACU FACU* UPL UPL,FACU

Celastrus scandens L. FACU- FACU* FACU* FACU FACU UPL NI UPL,FACU

Celtis laevigata Willd. FACW FACW FACW NI FACW FAC UPL NI NI NI UPL,FACW

Celtis laevigata var. reticulata (Torr.) L. Benson NI UPL UPL FACU FACU FAC- FACW* UPL,FACW*

Celtis occidentalis L. FACU FAC* FAC- FACU FACU FAC NI NI NI FACU,FAC

Cenchrus carolinianus Walt. NI NI NI NI NI NI NI NI UPL UPL

Cenchrus echinatus L. NI NI NI NI NI NI FACU FACU

Cenchrus myosuroides Kunth FAC- FACU UPL UPL,FAC-

Cenchrus tribuloides L. UPL FACU UPL,FACU

Centaurium beyrichii (Torr. & Gray) B.L. Robins. FACU FACU FACU

Centaurium calycosum (Buckl.) Fern. NI FACW* FACW- FACW+ FACW FACW* FACW-,FACW+

Centaurium davyi (Jepson) Abrams FAC+ FAC+

Centaurium erythraea Rafn FAC- NI FACU* FAC FAC NI FACU*,FAC

Centaurium exaltatum (Griseb.) W. Wight ex Piper FACW OBL FACW* FACW FACW FACW FACW*,OBL

Centaurium floribundum (Benth.) B.L. Robins. FACW FACW

Centaurium muehlenbergii (Griseb.) W. Wight ex Piper FAC* FACW FAC FAC*,FACW

Centaurium namophilum Reveal, Broome & Beatley FACW* FACW* FACW*

Centaurium nudicaule (Engelm.) B.L. Robins. NI FACW- FACW-

Centaurium pulchellum (Sw.) Druce FAC FAC- FACU- NI NI FACU* NI FACU-,FAC

Centaurium quitense (Kunth) B.L. Robins. FACU FACU

Centaurium spicatum (L.) Fritsch FACW+ FACW+

Centaurium trichanthum (Griseb.) B.L. Robins. FAC+ FAC+

Centella asiatica (L.) Urban NI FAC FAC

Centella erecta (L. f.) Fern. FACW FACW FACW NI FACW NI FACW



North Central

North Plains

Central Plains




Centosteca lappacea (L.) Desv. FAC FAC

Centrosema virginianum (L.) Benth. UPL NI NI UPL UPL

Cephalanthus occidentalis L. OBL OBL OBL OBL OBL OBL OBL OBL

Cephalanthus salicifolius Humb. & Bonpl. OBL OBL

Cerastium arvense L. UPL FACU FACU FACU FACU FACW FACU FACU FAC FAC* UPL,FACW

Cerastium axillare Correll FAC- NI FAC-

Cerastium beeringianum Cham. & Schlecht. NI NI FAC FAC FACU NI* FAC FACU,FAC

Cerastium brachypodum (Engelm. ex Gray) B.L. Robins. FACU- FACU FACU- FACU FACU FACU FACU FAC FAC FACU-,FAC

Cerastium fischerianum Ser. FACW FACW

Cerastium fontanum ssp. vulgare (Hartman) Greuter & Burdet FACU- FAC- FACU FACU FACU FACU FACU- FACU FACU FACU FACU* FACU FACU-,FAC-

Cerastium glomeratum Thuill. UPL FACU- FACU NI FACU FACU FACU* UPL FACU UPL* UPL*,FACU

Cerastium nutans Raf. FAC FAC- FACU+ FACU FACU FAC FACU FAC FACU FACU,FAC

Cerastium regelii Ostenf. FACW FACW

Ceratophyllum demersum L. OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL

Ceratophyllum echinatum Gray NI NI OBL NI NI NI OBL

Ceratophyllum muricatum Cham. OBL OBL OBL

Ceratopteris gaudichaudii Brongn. OBL* OBL*

Ceratopteris pteridoides (Hook.) Hieron. OBL OBL

Ceratopteris richardii Brongn. OBL OBL OBL

Ceratopteris thalictroides (L.) Brongn. OBL OBL NI OBL OBL OBL

Cercis canadensis L. FACU- FACU FACU UPL UPL UPL UPL NI UPL,FACU

Cercis canadensis var. mexicana (Rose) M. Hopkins NI FACW* FACW*

Ceriops tagal (Perr.) C.B. Robins. OBL OBL

Cestrum laurifolium L'Hér. FAC+ FAC+

Chaerophyllum procumbens (L.) Crantz FACW FACW FAC+ FAC FAC FAC,FACW

Chaerophyllum tainturieri Hook. FACW FAC FACU+ UPL FAC NI UPL,FACW

Chamaecrista diphylla (L.) Greene FAC FAC

Chamaecrista fasciculata (Michx.) Greene FACU FACU FACU- FACU FACU FACU- FACU- NI FACU-,FACU

Chamaecrista nictitans ssp. nictitans var. aspera (Muhl. ex Ell.) Irwin & B FACU FACU

Chamaecrista nictitans ssp. nictitans var. nictitans (L.) Moench FACU- FACU FACU- UPL FACU- UPL,FACU

Chamaecrista nictitans ssp. patellaria var. glabrata (Vogel) Irwin & Barne NI NI

Chamaecrista nictitans ssp. patellaria var. patellaria (DC. ex Colladon) Ka FACU FACU

Chamaecyparis lawsoniana (A. Murr.) Parl. FACU+ FACU FACU,FACU+

Chamaecyparis nootkatensis (D. Don) Spach FAC FAC FAC FAC

Chamaecyparis thyoides (L.) B.S.P. OBL OBL OBL

Chamaedaphne calyculata (L.) Moench OBL OBL OBL FACW FACW,OBL



North Central

North Plains

Central Plains




Chamaelirium luteum (L.) Gray FAC FACU+ FACU- FACU-,FAC

Chamaesyce hirta (L.) Millsp. NI NI NI NI NI NI FACU FACU

Chamaesyce hooveri (L.C. Wheeler) Koutnik OBL OBL

Chamaesyce humistrata (Engelm.) Small FACU FACW FACW FACW FAC* FACU,FACW

Chamaesyce hypericifolia (L.) Millsp. UPL FACU FACU* NI FAC FACU UPL,FAC

Chamaesyce hyssopifolia (L.) Small NI FAC FACU* FACU* NI FAC NI FACU*,FAC

Chamaesyce maculata (L.) Small FACU- FACU FACU- FACU- FACU- FACU* FACU* UPL UPL FACU* NI UPL,FACU

Chamaesyce mesembrianthemifolia (Jacq.) Dugand FAC* FAC FAC*,FAC

Chamaesyce nutans (Lag.) Small FACU- FACU FACU FACU- FACU- FACU* FACU* FACU FAC FACU-,FAC

Chamaesyce polygonifolia (L.) Small FACU FACU- UPL UPL,FACU

Chamaesyce porteriana Small FACW* FACW*

Chamaesyce prostrata (Ait.) Small NI NI NI NI NI NI NI NI NI FAC NI FAC

Chamaesyce rockii (Forbes) Croizat & Deg. NI

Chamaesyce serpens (Kunth) Small FACW FAC+ FACW UPL UPL UPL UPL NI FAC* FAC UPL,FACW

Chamaesyce sparsiflora (Heller) Koutnik FACW FACW

Chamissoa altissima (Jacq.) Kunth NI FAC FAC

Chaptalia tomentosa Vent. FACW FACW FACW

Chasmanthium latifolium (Michx.) Yates FACU FAC- FACW FAC FAC UPL UPL,FACW

Chasmanthium laxum (L.) Yates FAC FACW- FACW FAC FAC,FACW

Chasmanthium laxum var. sessiliflorum (Poir.) L. Clark FAC FAC+ NI FAC FAC,FAC+

Chasmanthium nitidum (Baldw.) Yates FACW+ FACW+

Chasmanthium ornithorhynchum (Steud.) Yates FACW FACW

Cheilanthes decora (Brack.) R.& A. Tryon NI

Cheirodendron dominii Krajina FACW FACW

Cheirodendron fauriei Hochr. FAC FAC

Cheirodendron platyphyllum (Hook. & Arn.) Seem. FAC FAC

Cheirodendron trigynum (Gaud.) Heller FAC FAC

Cheiroglossa palmata (L.) K. Presl FAC+ NI* FAC+

Chelidonium majus L. UPL UPL NI NI NI UPL,FACU-


Chelone cuthbertii Small OBL OBL OBL

Chelone glabra L. OBL OBL OBL OBL

Chelone lyonii Pursh FACW+ FACW+ FACW+

Chelone obliqua L. OBL OBL OBL OBL

Chenopodium album L. FACU+ FAC- FAC- FAC FAC FAC FAC- FACU FAC FAC FACU FACU FACU,FAC

Chenopodium ambrosioides L. FACU FACU FAC- FAC FAC FAC FAC FAC- FAC FAC FAC NI FACU,FAC



North Central

North Plains

Central Plains




Chenopodium botryodes Sm. NI FACW* FACW FAC+ FACW FAC+,FACW

Chenopodium botrys L. UPL FACU FACU- FACU FACU FACU FACU FACU FACU FACU UPL,FACU

Chenopodium foliosum (Moench) Aschers. NI NI NI NI FACU* NI FACU*

Chenopodium fremontii S. Wats. NI FACU UPL FACU UPL FACU FACU FAC* UPL,FAC*

Chenopodium glaucum L. FACW- NI FACW FACW FACW FAC* FAC FACW FAC FAC*,FACW

Chenopodium humile Hook. NI NI FAC+ FAC+ FAC+* FAC+ NI FAC+*,FAC+

Chenopodium leptophyllum (Moq.) Nutt. ex S. Wats. FAC UPL FACU- UPL FACU FACU FACU FACU FACU UPL UPL,FAC

Chenopodium macrospermum Hook. f. NI NI FACW FACW

Chenopodium murale L. NI NI NI NI NI NI NI NI FACU NI FACU FACU

Chenopodium rubrum L. FACW FACW* OBL OBL OBL FACW FACW* FACW+ FACU OBL FACU,OBL

Chenopodium salinum Standl. NI FACU* FAC FACU FAC* NI FACU FAC* FAC FACU*,FAC

Chilopsis linearis (Cav.) Sweet NI FACU* FACU* FAC FACW* FACU*,FACW*

Chiococca alba (L.) A.S. Hitchc. FAC* NI UPL UPL,FAC*

Chiococca parvifolia Wullschl. ex Griseb. FAC* FAC*

Chionanthus domingensis Lam. FAC FAC

Chionanthus virginicus L. FAC+ FACU FAC- FAC FACU,FAC+

Chione venosa (Sw.) Urban FACU FACU

Chionophila jamesii Benth. NI NI FACU NI FACU

Chloracantha spinosa (Benth.) Nesom FACW FACW- FACW FAC FACW FAC,FACW

Chloris barbata Sw. NI FACU FAC FACU FACU,FAC

Chloris ciliata Sw. NI UPL FACU UPL,FACU

Chloris crinita Lag. NI FACU UPL UPL,FACU

Chloris radiata (L.) Sw. UPL NI FACU FACU UPL,FACU

Chloris virgata Sw. NI NI NI NI NI NI NI NI FACU* NI FACU*

Chrysobalanus icaco L. FACW FAC FAC,FACW

Chrysoma pauciflosculosa (Michx.) Greene FAC- FAC-

Chrysophyllum argenteum Jacq. FACW FACW

Chrysopsis gossypina ssp. cruiseana (Dress) Semple FACU FACU

Chrysopsis mariana (L.) Ell. UPL UPL FACU UPL,FACU

Chrysosplenium americanum Schwein. ex Hook. OBL OBL OBL OBL

Chrysosplenium glechomifolium Nutt. OBL OBL OBL

Chrysosplenium iowense Rydb. OBL OBL

Chrysosplenium tetrandrum (Lund) Th. Fries NI OBL OBL OBL OBL

Chrysosplenium wrightii Franch. & Savigny FAC FAC

Chrysothamnus linifolius Greene NI NI FAC NI FAC

Chusquea abietifolia Griseb. FAC FAC



North Central

North Plains

Central Plains




Cibotium chamissoi Kaulfuss FAC* FAC*

Cibotium glaucum (Sm.) Hook. & Arn. FAC* FAC*

Cibotium st.-johnii Krajina FAC* FAC*

Cichorium intybus L. NI NI NI NI NI NI NI FACU NI NI FACU

Ciclospermum leptophyllum (Pers.) Sprague ex Britt. & Wilson NI FAC+ FAC UPL NI NI NI FAC NI UPL,FAC+

Cicuta bolanderi S. Wats. NI NI NI NI NI NI NI OBL OBL

Cicuta bulbifera L. OBL OBL OBL OBL OBL OBL NI OBL

Cicuta douglasii (DC.) Coult. & Rose NI NI OBL OBL OBL OBL OBL

Cicuta maculata L. OBL OBL OBL OBL OBL OBL OBL NI NI NI NI OBL

Cicuta virosa L. OBL OBL

Cimicifuga laciniata S. Wats. FACW FACW

Cinna arundinacea L. FACW FACW FACW FACW FACW FACW FACW,OBL*

Coastal Plain OBL*

Cinna bolanderi Scribn. FACW FACW

Cinna latifolia (Trev. ex Goepp.) Griseb. FACW FACW+ FACW+ OBL NI FACW+ OBL FACW FACW OBL FACW,OBL

Cinnamomum camphora (L.) J. Presl FACU- UPL* NI NI UPL*,FACU-

Cinnamomum elongatum (Vahl ex Nees) Kosterm. FAC- FAC-

Cinnamomum montanum (Sw.) Bercht. & J. Presl FAC FAC

Cinnamomum sessilifolium Kanehira FACU FACU

Circaea alpina L. FACW FACW FACW FACW FACW FAC FACW FAC FACW FACW FAC,FACW

Circaea lutetiana L. FACU FACU FACU FACU FACU FACU FACU

Cirsium andrewsii (Gray) Jepson FAC FAC

Cirsium arizonicum var. nidulum (M.E. Jones) Welsh FAC FAC FACU+ FACU+,FAC

Cirsium arvense (L.) Scop. FACU FACU+ FACU FACU FACU FACU- FACU FAC- FAC- FAC FACU-,FAC

Cirsium crassicaule (Greene) Jepson OBL OBL

Cirsium discolor (Muhl. ex Willd.) Spreng. UPL UPL NI NI NI UPL

Cirsium douglasii DC. OBL OBL OBL OBL

Cirsium drummondii Torr. & Gray NI FAC FAC

Cirsium edule Nutt. FAC FAC FAC

Cirsium flodmanii (Rydb.) Arthur NI NI FAC FAC NI FAC NI FAC

Cirsium foliosum (Hook.) DC. NI FAC- FAC-

Cirsium fontinale (Greene) Jepson OBL OBL

Cirsium horridulum Michx. FACU- FAC NI FAC NI FACU-,FAC

Cirsium hydrophilum (Greene) Jepson OBL OBL

Cirsium lecontei Torr. & Gray FACW- FACW-

Cirsium loncholepis Petrak OBL OBL



North Central

North Plains

Central Plains




Cirsium mohavense (Greene) Petrak FACU FACU FACU

Cirsium muticum Michx. OBL OBL OBL OBL FACW+ FACW+,OBL

Cirsium nuttallii DC. FAC FAC FAC

Cirsium pallidum Woot. & Standl. FACW FACW FACW

Cirsium parryi (Gray) Petrak NI FACW- FACW FACW-,FACW

Cirsium scariosum Nutt. NI FAC NI FAC

Cirsium scariosum var. scariosum Nutt. NI FAC OBL FAC,OBL

Cirsium tioganum var. coloradense (Rydb.) Dorn NI NI NI FAC NI FAC

Cirsium undulatum (Nutt.) Spreng. FAC- FAC FACU FACU FAC- FACU FACU+ NI* FACU,FAC

Cirsium vinaceum Woot. & Standl. OBL OBL

Cirsium virginianum (L.) Michx. FACW OBL NI FACW,OBL

Cirsium vulgare (Savi) Ten. FACU- FAC FACU- UPL UPL FACU FACU FAC FACU FAC UPL* FACU- UPL*,FAC

Cissus erosa L.C. Rich. FAC FAC

Cissus incisa Des Moulins FAC FACU FACU FACU- FAC FACU-,FAC

Cissus trifoliata (L.) L. UPL UPL* FACU UPL*,FACU

Cissus verticillata (L.) D.H. Nicols. & Jarvis NI NI FAC FAC

Cistanthe ambigua (S. Wats.) Hershkovitz FAC FAC FAC

Cistanthe rosea (S. Wats.) Hershkovitz FACU* FACU FACU* FACU*,FACU

Citharexylum caudatum L. FACW NI FACW

Citrus aurantium L. FACU NI FAC FACU,FAC

Cladium californicum (S. Wats.) O'Neill OBL OBL OBL OBL

Cladium mariscoides (Muhl.) Torr. OBL OBL OBL OBL

Cladium mariscus ssp. jamaicense (Crantz) Kükenth. OBL OBL OBL OBL OBL OBL OBL

Clappia suaedifolia Gray FACW- FACW-

Claytonia arctica M.F. Adams FAC FAC

Claytonia caroliniana Michx. FACU FACU FACU FACU

Claytonia cordifolia S. Wats. FAC FAC FAC FAC

Claytonia eschscholtzii Cham. FACU FACU

Claytonia lanceolata Pursh NI NI FACW UPL FAC- FAC UPL,FACW

Claytonia megarhiza (Gray) Parry ex S. Wats. NI NI FACU- FACU- FACU UPL NI UPL,FACU

Claytonia nevadensis S. Wats. FAC FACW* FAC,FACW*

Claytonia palustris Swanson & Kelley FACW FACW

Claytonia parviflora Dougl. ex Hook. NI NI NI NI UPL UPL

Claytonia perfoliata Donn ex Willd. NI FACW NI FACW FAC- FAC FACU FACW FACU,FACW

Claytonia sarmentosa C.A. Mey. FAC FAC

Claytonia sibirica L. NI NI FAC- OBL FACW FAC-,OBL



North Central

North Plains

Central Plains




Claytonia tuberosa Pallas ex J.A. Schultes FACW FACW

Claytonia virginica L. FAC FACU- FACU FACU FACU FACU-,FAC

Claytonia washingtoniana (Suskd.) Suskd. FACU FACU

Cleistes divaricata (L.) Ames FAC FAC+ FAC,FAC+

Clematis addisonii Britt. FACU FACU

Clematis baldwinii Torr. & Gray FACW- FACW-

Clematis catesbyana Pursh NI FAC+ NI NI NI FAC+

Clematis crispa L. FACW FACW+ OBL FAC FAC,OBL

Clematis glaucophylla Small FAC- NI FAC FAC-,FAC

Clematis ligusticifolia Nutt. NI FACW NI FACU FACU FAC* FAC FACU FAC- FAC FACU,FACW

Clematis pitcheri Torr. & Gray NI NI FACU* FAC FACU FACU* FACU*,FAC

Clematis terniflora DC. FACU- FAC- UPL UPL FACU* UPL,FAC-

Clematis virginiana L. FAC FAC+ FAC FACU FACU FAC- FACU,FAC+

Cleome aculeata L. NI NI FAC FAC

Cleome gynandra L. NI NI NI FAC NI FAC

Cleome lutea Hook. FACU FACU FAC+ UPL FACU FAC UPL,FAC+

Cleome multicaulis DC. NI NI FACW FACW NI NI FACW

Cleome serrulata Pursh NI FACU- FACU FACU FACU FAC FACU FACU FAC FACU-,FAC

Cleome spinosa Jacq. FACU- FACU+ FACU* FACU* FAC NI FACU-,FAC

Cleomella angustifolia Torr. FAC FAC NI FAC

Cleomella brevipes S. Wats. FACU FACW FACU,FACW

Cleomella longipes Torr. FAC- FACU FACU,FAC-

Cleomella parviflora Gray NI NI NI FACW FACW

Cleomella plocasperma S. Wats. NI NI NI FACW FACW

Clermontia arborescens (Mann) Hbd. FAC* FAC*

Clermontia clermontioides (Gaud.) Heller FACU FACU

Clermontia drepanomorpha Rock FACW FACW

Clermontia grandiflora Gaud. FACW FACW

Clermontia grandiflora ssp. munroi (St. John) Lammers FAC* FAC*

Clermontia kakeana Walp. FAC FAC

Clermontia kohalae Rock FAC FAC

Clermontia X leptoclada Rock (pro sp.) FAC FAC

Clermontia micrantha (Hbd.) Rock FACW FACW

Clermontia oblongifolia Gaud. FAC FAC

Clermontia parviflora Gaud. ex Gray FACU FACU

Clermontia persicifolia Gaud. FACU FACU



North Central

North Plains

Central Plains




Clermontia samuelii Forbes FAC FAC

Clermontia tuberculata Forbes FAC* FAC*

Clermontia waimeae Rock FAC FAC

Clerodendrum aculeatum (L.) Schlecht. FACW FACW

Clerodendrum inerme (L.) Gaertn. NI FACW FACW

Clerodendrum philippinum Schauer NI NI FAC FAC

Clethra alnifolia L. FAC+ FACW FACW FAC+,FACW

Cleyera albopunctata (Griseb.) Krug & Urban FACW FACW

Clibadium erosum (Sw.) DC. FACW FACW

Clidemia domingensis (DC.) Cogn. FACW FACW

Clidemia hirta (L.) D. Don FACW FACU FACU,FACW

Clidemia strigillosa (Sw.) DC. FACW FACW

Clidemia umbrosa (Sw.) Cogn. FACW FACW

Cliftonia monophylla (Lam.) Britt. ex Sarg. OBL OBL

Clintonia borealis (Ait.) Raf. FAC FACU FAC+ FACU,FAC+

Clitoria falcata Lam. FAC FAC

Clitoria laurifolia Poir. FACW FACW

Clitoria mariana L. NI NI FACU-* NI NI NI FACU-*

Clitoria ternatea L. FACU* NI UPL NI UPL,FACU*

Clusia clusioides (Griseb.) D'Arcy FAC FAC

Clusia gundlachii Stahl FAC FAC

Clusia minor L. FACW FACW

Clusia rosea Jacq. FAC* FAC NI FAC*,FAC

Cnemidaria horrida (L.) K. Presl FACW+ FACW+

Cnidium cnidiifolium (Turcz.) Schischkin FAC FAC

Coccoloba pyrifolia Desf. FAC FAC

Coccoloba rugosa Desf. FAC FAC

Coccoloba sintenisii Urban ex Lindau FAC FAC

Coccoloba swartzii Meisn. FAC FAC

Coccoloba uvifera (L.) L. FACU FACU FACU

Coccoloba venosa L. FAC FAC

Coccothrinax argentata (Jacq.) Bailey FAC* NI FAC*

Cocculus carolinus (L.) DC. FAC FAC FAC FAC FACU FACU,FAC

Cochlearia groenlandica L. FACW NI FACW FACW

Cochlearia officinalis L. NI FACW* FACW*

Cochlearia sessilifolia Rollins FACW* FACW*



North Central

North Plains

Central Plains




Cochlidium jungens Bishop NI*

Cochlidium serrulatum (Sw.) Bishop OBL OBL

Cocos nucifera L. FACU FACU FACU FACU

Coeloglossum viride (L.) Hartman FACU FAC FAC FACU FAC FAC FAC FAC FACW FACU,FACW

Coelorachis cylindrica (Michx.) Nash FAC FACU- FACU FAC- FACU-,FAC

Coelorachis rugosa (Nutt.) Nash OBL OBL FACW* FACW*,OBL

Coelorachis tessellata (Steud.) Nash FACW FACW

Coelorachis tuberculosa (Nash) Nash OBL OBL

Coix lacryma-jobi L. FACW FACW NI OBL FACW+ FACW,OBL

Coleanthus subtilis (Tratt.) Seidel OBL OBL

Coleus scutellarioides (L.) Benth. FAC NI FAC

Collinsia tinctoria Hartw. ex Benth. FACU* FACU*

Collinsia verna Nutt. FAC- FAC FACU FACU FAC* FACU,FAC

Collinsonia canadensis L. FAC+ FAC FAC FAC,FAC+

Collomia linearis Nutt. UPL FACU FACU FACU FACU FACU FACU FACU FACU UPL,FACU

Collomia rawsoniana Greene FACU* FACU*

Colocasia esculenta (L.) Schott FACW+ NI OBL OBL FACW+,OBL

Colubrina arborescens (P. Mill.) Sarg. NI UPL UPL

Colubrina asiatica (L.) Brongn. FACW FACU FACU,FACW

Columbia burretii Kanehira FAC FAC

Columnea ambiguus (Urban) Morley FACW FACW

Comandra umbellata (L.) Nutt. FACU- UPL FACU UPL UPL UPL UPL UPL UPL UPL UPL,FACU

Comarum palustre L. OBL OBL OBL OBL OBL OBL OBL OBL OBL

Combretum tetralophum C.B. Clarke FAC FAC

Commelina caroliniana Walt. NI FAC FACU* NI FACU*,FAC

Commelina communis L. FAC- FAC FAC FAC- FAC FAC FAC-,FAC

Commelina diffusa Burm. f. FACW FACW FACW FACW FACW FAC FACW FAC,FACW

Commelina erecta L. NI NI NI NI NI NI NI NI NI FAC FAC

Commelina rufipes var. glabrata (D. Hunt) Faden & D. Hunt FACU+ FACU+

Commelina virginica L. FACW FACW FACW FACW- FAC FACU FACU,FACW

Comocladia glabra (J.A. Schultes) Spreng. FAC FAC

Complaya trilobata (L.) Strother FACU FAC FACU FACU,FAC

Conioselinum chinense (L.) B.S.P. FACW FACW FACW FACW FACW FACW

Conioselinum gmelinii (Cham. & Schlecht.) Steud. FACW FAC FACW FAC,FACW

Conioselinum scopulorum (Gray) Coult. & Rose NI NI FACW* FACW FAC FAC,FACW

Conium maculatum L. FACW FACW FACW FAC FACW FACW OBL FAC- FAC+ FAC FAC-,OBL



North Central

North Plains

Central Plains




Connarus semidecandrus ssp. gaudichaudii Jack FAC FAC

Conocarpus erectus L. FACW+ FACW FACW FACW,FACW+

Conostegia puberula Naud. FACW FACW

Conradina verticillata Jennison FACW+ FACW- FACW-,FACW+

Convolvulus equitans Benth. NI NI NI NI NI FACU* FACU*

Conyza canadensis (L.) Cronq. UPL FACU FAC- FACU FACU- UPL FACU FACU FACU FAC NI FACU UPL UPL,FAC

Cooperia drummondii Herbert FACU- FACU FAC- FACU- FACU-,FAC-

Coprosma elliptica Oliver FACW+ FACW+

Coprosma foliosa Gray NI

Coprosma ochracea Oliver FAC FAC

Coprosma pubens Gray FAC FAC

Coptis aspleniifolia Salisb. FAC FAC FAC

Coptis laciniata Gray FAC FACW* FAC,FACW*

Coptis trifolia (L.) Salisb. FACW NI FACW NI FAC FAC,FACW

Corallorrhiza maculata (Raf.) Raf. FACU UPL FACU- FACU- UPL UPL UPL UPL UPL UPL UPL,FACU

Corallorrhiza striata Lindl. FACU+ FACU- UPL UPL UPL UPL FACU- FACU UPL UPL,FACU+

Corallorrhiza trifida Chatelain FACW NI FACW- FAC FAC FAC* FAC FAC FACW FACW FAC*,FACW

Corallorrhiza wisteriana Conrad FAC FAC FACU+ FACU FACU FAC UPL FACU FAC UPL,FAC

Corchorus siliquosus L. NI NI FAC FAC

Cordia bellonis Urban FACW FACW

Cordia borinquensis Urban FACW FACW

Cordia sebestena L. FAC* NI FAC*

Cordia wagneriorum Howard FACW FACW

Cordylanthus eremicus ssp. eremicus (Coville & Morton) Munz FACW FACW

Cordylanthus maritimus Nutt. ex Benth. NI OBL OBL OBL OBL

Cordylanthus mollis Gray OBL OBL

Cordylanthus palmatus (Ferris) J.F. Macbr. OBL OBL

Cordylanthus tecopensis Munz & Roos FACW* FACW* FACW*

Coreopsis falcata Boynt. FACW FACW

Coreopsis floridana E.B. Sm. OBL OBL

Coreopsis gladiata Walt. FACW FACW FACW

Coreopsis integrifolia Poir. FACW FACW

Coreopsis lanceolata L. FACU UPL FACU UPL FAC* UPL NI NI* NI UPL,FAC*

Coreopsis leavenworthii Torr. & Gray FACW FACW

Coreopsis linifolia Nutt. FACW FACW FACW FACW

Coreopsis nudata Nutt. FACW+ FACW+



North Central

North Plains

Central Plains




Coreopsis pubescens Ell. UPL FAC- FAC- FAC FACU UPL,FAC

Coreopsis rosea Nutt. FACW FACW FACW

Coreopsis tinctoria Nutt. FAC- FAC FAC- FAC FAC FAC FAC NI FACU NI NI FACU,FAC

Coreopsis tripteris L. FAC FAC FAC FAC FAC FAC

Corispermum hyssopifolium L. FACU FACU* FACU FACU FACU FACU FACU FACU FACU NI* FACU FACU*,FACU

Cornus alternifolia L. f. NI FAC+* NI FAC+*

Cornus amomum P. Mill. FACW FACW+ FACW+ FACW FACW FACW FACW,FACW+

Cornus asperifolia Michx. FACW- FACW-

Cornus canadensis L. FAC- FAC FAC FAC FAC FAC FAC- FAC FACU FACU,FAC

Cornus drummondii C.A. Mey. FAC FAC FAC FAC FAC FAC FAC

Cornus florida L. FACU- FACU FACU- FACU- FACU FACU-,FACU

Cornus foemina P. Mill. FACW FACW- FACW- FACW FACW-,FACW

Cornus glabrata Benth. FACW FACW FACW

Cornus nuttallii Audubon ex Torr. & Gray NI FACU* FACU*

Cornus racemosa Lam. FAC- NI NI FAC FAC NI FAC-,FAC

Cornus sericea ssp. sericea L. FACW+ FACW FACW FACW FACW FACW FACW FACW FAC FAC,FACW+

Cornus sessilis Torr. ex Dur. FAC FAC

Cornus suecica L. FAC FAC

Cornutia obovata Urban FAC FAC

Corydalis aquae-gelidae M.E. Peck & Wilson OBL OBL

Corydalis caseana Gray NI FACW* FACW FACW+ FACW* FACW*,FACW+

Corydalis flavula (Raf.) DC. FACU FACU FACU+ NI FAC FACU FACU,FAC

Corydalis pauciflora (Steph.) Pers. FAC FAC

Corydalis scouleri Hook. FAC+ FAC+

Corylus americana Walt. FACU- FACU FACU- UPL UPL UPL UPL,FACU

Corylus cornuta Marsh. FACU- FACU UPL UPL UPL FACU FACU NI UPL,FACU

Corylus cornuta var. californica (A. DC.) Sharp NI NI FACU* FACU*

Corymborchis flava (Sw.) Kuntze FAC FAC

Cosmos bipinnatus Cav. FACU- FAC FACW- NI NI FACW- FACW NI NI FACU-,FACW

Cosmos parviflorus (Jacq.) Pers. NI NI NI FAC- FAC- FACU- FACU-,FAC-

Costus guanaiensis var. macrostrobilus (K. Schum.) Maas FACW FACW

Costus spicatus (Jacq.) Sw. FACW FACW

Cotula australis (Sieber) Hook. f. NI NI NI NI NI NI FAC* NI FAC*

Cotula coronopifolia L. NI OBL OBL* FACW+ FACW+ OBL FACW+,OBL

Crambe maritima L. NI NI

Cranichis muscosa Sw. UPL FACW UPL,FACW



North Central

North Plains

Central Plains




Cranichis tenuis Reichenb. f. FACW FACW

Crassocephalum crepidioides (Benth.) S. Moore FAC FAC

Crassula aquatica (L.) Schoenl. OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL

Crassula connata var. connata (Ruiz & Pavon) Berger FAC FAC

Crassula solierii (Gray) Meigen NI NI NI NI OBL* OBL*

Crassula tillaea Lester-Garland NI NI*

Crataegus aestivalis (Walt.) Torr. & Gray NI OBL OBL

Crataegus berberifolia Torr. & Gray FACU FAC FACU- FAC+ FACU-,FAC+

Crataegus brachyacantha Sarg. & Engelm. OBL FACW FACW,OBL

Crataegus crus-galli L. FACU FAC- FAC FACU FAC- FACU,FAC

Crataegus douglasii Lindl. FAC NI NI NI FAC FAC FAC FAC FAC

Crataegus erythropoda Ashe NI FAC* FACU NI FACU,FAC*

Crataegus marshallii Egglest. FACU+ FAC FACW FAC- FACU+,FACW

Crataegus mollis Scheele FACU FAC FACW- FACU FAC FAC FACU,FACW-

Crataegus monogyna Jacq. NI NI NI NI NI FAC- FAC-

Crataegus nitida (Engelm.) Sarg. FACU+ FAC+ OBL FACU+,OBL

Crataegus opaca Hook. & Arn. OBL OBL OBL

Crataegus phaenopyrum (L. f.) Medik. FAC FAC- FAC FAC-,FAC

Crataegus pulcherrima Ashe FAC FAC

Crataegus spathulata Michx. FAC FAC FACW FAC+ FAC,FACW

Crataegus suksdorfii (Sarg.) Kruschke NI UPL UPL

Crataegus texana Buckl. FAC FAC

Crataegus viridis L. FACW FACW FACW FAC FAC FAC,FACW

Crepis capillaris (L.) Wallr. NI UPL NI NI NI NI FACU* FACU* FACU NI NI UPL,FACU

Crepis runcinata (James) Torr. & Gray FACW FAC FAC FAC FAC FACW FACU FACW FACU,FACW

Crescentia portoricensis Britt. OBL OBL

Cressa nudicaulis Griseb. OBL OBL

Cressa truxillensis Kunth FACW- FACW- FACW FACW FACW NI FACW-,FACW

Crinum americanum L. OBL OBL OBL

Crinum strictum Herbert FACW+ FACW+

Croptilon divaricatum (Nutt.) Raf. UPL UPL UPL FACU UPL,FACU

Crossopetalum ilicifolium (Poir.) Kuntze FACW FACW

Crossopetalum rhacoma Crantz FACW* NI FACW*

Crotalaria incana L. FACU FACU FACU UPL UPL,FACU

Crotalaria rotundifolia Walt. ex J.F. Gmel. UPL FACU NI UPL UPL,FACU

Crotalaria spectabilis Roth NI NI NI NI UPL NI UPL



North Central

North Plains

Central Plains




Croton elliottii Chapman FACW+ FACW+

Croton heterocarpum Muell.-Arg. FACW+ FACW+

Croton lobatus L. NI FAC FAC

Croton poecilanthus Urban FACW FACW

Croton ripense Kanehira & Hatusima FACW FACW

Crudia cynometroides Hosokawa FAC FAC

Crypsis alopecuroides (Piller & Mitterp.) Schrad. NI NI OBL OBL* FACW* FACW*,OBL

Crypsis schoenoides (L.) Lam. NI FACU NI FACW NI OBL FACU,OBL

Crypsis vaginiflora (Forsk.) Opiz NI OBL OBL

Cryptantha crinita Greene FACU* FACU*

Cryptogramma stelleri (Gmel.) Prantl FACU- FACU NI NI UPL FACU FAC UPL,FAC

Cryptostegia grandiflora (Roxb. ex R. Br.) R. Br. FACU* FACW FACU*,FACW

Cryptotaenia canadensis (L.) DC. FAC FAC+ FAC FACU FACU FAC NI FACU,FAC+

Ctenitis hirta var. portoricana (C. Christens.) Proctor FAC FAC

Ctenitis nemorosa (Humb. & Bonpl. ex Willd.) Ching FAC FAC

Ctenitis rubiginosa (Brack.) Copeland FAC* FAC*

Ctenitis submarginalis (Langsd. & Fisch.) Ching FACW FACW

Ctenium aromaticum (Walt.) Wood FACW FACW FACW

Ctenium floridanum (A.S. Hitchc.) A.S. Hitchc. FACW FACW

Cucurbita okeechobeensis (Small) Bailey OBL* OBL*

Cucurbita texana Gray FACU FAC NI FACU,FAC

Cuphea aspera Chapman OBL OBL

Cuphea carthagenensis (Jacq.) J.F. Macbr. FACW FACW- FAC FAC,FACW

Cuphea glutinosa Cham. & Schlecht. FACU NI FACU

Cuphea micrantha Kunth OBL OBL

Cuphea parsonsia (L.) R. Br. ex Steud. FACU FACU

Cuphea viscosissima Jacq. FAC- FACU FACU UPL* FAC NI UPL*,FAC

Curculigo scorzonerifolia (Lam.) Baker FAC FAC

Curcuma longa L. NI FACU FACU

Cyanea aculeatiflora Rock NI

Cyanea angustifolia (Cham.) Hbd. NI

Cyanea degeneriana F. Wimmer FAC* FAC*

Cyanea fissa (Mann) Hbd. FACW FACW

Cyanea hirtella (Mann) Hbd. FAC FAC

Cyanea horrida (Rock) O. Deg. & Hosaka FAC FAC

Cyanea kunthiana (Gaud.) Hbd. FAC FAC



North Central

North Plains

Central Plains




Cyanea macrostegia Hbd. FAC FAC

Cyanea pilosa Gray FAC* FAC*

Cyanea scabra Hbd. FAC* FAC*

Cyanea solenocalyx Hbd. FACW FACW

Cyanea tritomantha Gray FACU FACU

Cyathea andina (Karst.) Domin FACW FACW

Cyathea arborea (L.) Sm. FACW FACW

Cyathea armata (Sw.) Domin FACU FACU

Cyathea borinquena (Maxon) Domin FACW FACW

Cyathea furfuracea Baker FACW FACW

Cyathea ponapeana (Hosoikawa) Glassman FACU FACU

Cyathea pungens (Willd.) Domin FACW FACW

Cyathea tenera (J. Sm. ex Hook.) T. Moore FACU FACU

Cyathula prostrata (L.) Blume NI FAC+ FAC+

Cybianthus sintenisii (Urban) Forero OBL OBL

Cycloloma atriplicifolium (Spreng.) Coult. FACU- FACU+ FACU FAC FAC UPL UPL FACU FACU- NI UPL,FAC

Cyclopeltis semicordata (Sw.) J. Sm. FACU FACU

Cydista aequinoctialis (L.) Miers FACW FACW

Cymodocea filiformis (Kuetz.) Correll NI OBL OBL OBL OBL

Cymodocea rotundata Ehrenb. & Hempr. ex Aschers OBL OBL

Cymodocea serrulata (R. Br.) Aschers. & Magnus OBL OBL

Cymophyllus fraserianus (Ker-Gawl.) Kartesz & Gandhi NI FACW* FACW*

Cynanchum angustifolium Pers. FACW OBL FACW,OBL

Cynanchum laeve (Michx.) Pers. FAC FAC FAC FAC FAC FAC

Cynodon dactylon (L.) Pers. FACU FACU FACU FACU FACU+ FACU FAC FACU FACU FAC FACU FACU,FAC

Cynoglossum officinale L. NI UPL NI NI NI NI FACU FACU* FACU* UPL,FACU

Cynometra ramiflora L. FAC FAC

Cynosciadium digitatum DC. FACW FACW FACW FACW

Cynosurus cristatus L. UPL UPL FAC NI NI UPL FACW* UPL,FACW*

Cyperus acuminatus Torr. & Hook. ex Torr. OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL

Cyperus aggregatus (Willd.) Endl. NI FAC FAC FACU FACU,FAC

Cyperus amabilis Vahl UPL* UPL*

Cyperus articulatus L. OBL OBL OBL NI OBL

Cyperus bipartitus Torr. FACW+ FACW FACW+ FACW FACW FACW NI FACW* OBL NI FACW*,OBL

Cyperus compressus L. FAC+ FACW FACW+ FACW FACW FAC FAC,FACW+

Cyperus croceus Vahl FACU FAC FAC- FAC+ FAC FACU,FAC+



North Central

North Plains

Central Plains




Cyperus cuspidatus Kunth FACW- FAC FAC,FACW-

Cyperus cyperinus (Retz.) Sur. FAC* FAC*

Cyperus cyperoides (L.) Kuntze FAC FAC

Cyperus dentatus Torr. FACW+ OBL FACW+ FACW+,OBL

Cyperus diandrus Torr. FACW FACW FACW+ FACW FACW+ FACW,FACW+

Cyperus difformis L. OBL OBL NI OBL OBL OBL OBL OBL OBL

Cyperus digitatus Roxb. OBL* FACW+ OBL FACW+,OBL

Cyperus distans L. f. OBL OBL OBL

Cyperus distinctus Steud. FACW FACW

Cyperus echinatus (L.) Wood FACU FAC FAC FAC FAC+ NI FACU,FAC+

Cyperus elegans L. FACW FACW- FACW FACW-,FACW

Cyperus eragrostis Lam. NI FACW NI NI FACW FACW

Cyperus erythrorhizos Muhl. FACW+ OBL OBL OBL OBL OBL OBL OBL OBL OBL FACW+,OBL

Cyperus esculentus L. FACW FAC FACW FACW FACW FACW FACW FACW FACW FACW NI FACW NI FAC,FACW

Cyperus fendlerianus Boeckl. NI FAC+ FAC FAC FAC,FAC+

Cyperus flavescens L. OBL OBL OBL NI OBL NI OBL OBL

Cyperus flavicomus Michx. FAC FAC NI FAC FACU FACU,FAC

Cyperus fuscus L. FAC FACW FAC NI* FAC,FACW

Cyperus giganteus Vahl OBL OBL OBL OBL

Cyperus gracilis R. Br. FAC FAC

Cyperus granitophilus McVaugh FACW FACW* FACW*,FACW

Cyperus haspan L. OBL OBL OBL OBL FACW+ FACW+,OBL

Cyperus imbricatus Retz. OBL OBL

Cyperus involucratus Rottb. NI OBL FACW+ NI FACW+ OBL FACW FACW,OBL

Cyperus iria L. FACW FACW FACW FACW FACW FACW+ FACW,FACW+

Cyperus javanicus Houtt. FACW FACW

Cyperus laevigatus L. FACW FAC+ FAC FACW* FACW+ FACW OBL FAC,OBL

Cyperus lancastriensis Porter ex Gray FACU FAC FAC- FAC+ FACU,FAC+

Cyperus lanceolatus Poir. FACW FACW* FACW*,FACW

Cyperus lecontei Torr. ex Steud. NI FACW FACW

Cyperus ligularis L. FACW FACW FAC OBL FAC,OBL

Cyperus lupulinus ssp. lupulinus (Spreng.) Marcks UPL FACU+ FACU- FAC FACU FACU FACU* FACU* UPL UPL,FAC

Cyperus mutisii (Kunth) Griseb. NI UPL UPL

Cyperus niger Ruiz & Pavón NI FACW FACW FACW+ NI FACW+ FACW,FACW+

Cyperus ochraceus Vahl NI FACW FACW FACW FACW

Cyperus odoratus L. FACW FACW FACW+ FACW FACW FACW FACW NI NI FACW FACW+ FACW FACW,FACW+



North Central

North Plains

Central Plains




Cyperus onerosus M.C. Johnston FACW FACW

Cyperus oxylepis Nees ex Steud. FACW FACW FACW

Cyperus papyrus L. OBL OBL OBL

Cyperus parishii Britt. FACW FACW* FACW FACW*,FACW

Cyperus peruvianus (Lam.) F.N. Williams FAC+ FAC+

Cyperus phaeolepis Cherm. FAC+ FAC+

Cyperus pilosus Vahl NI FACW FACW

Cyperus planifolius L.C. Rich. FAC FACU FACU,FAC

Cyperus polystachyos Rottb. FACW FACW FACW FACW FACW FAC* FAC*,FACW

Cyperus polystachyos var. filicinus (Vahl) C.B. Clarke OBL OBL OBL FACW+ FACW+,OBL

Cyperus pringlei Britt. FACW FACW

Cyperus prolixus Kunth NI FAC+ FAC+

Cyperus pseudovegetus Steud. FACW FACW FACW FACW FACW FACW

Cyperus pumilus L. FACW FACW

Cyperus reflexus Vahl FAC- FAC FAC-,FAC

Cyperus refractus Engelm. ex Boeckl. FACU+ FAC- FAC- NI FACU+,FAC-

Cyperus retrorsus Chapman FAC- FACU+ FAC- FAC NI FACU+,FAC

Cyperus rotundus L. FAC FAC- FAC- FAC FAC FAC FAC FACU FACU,FAC

Cyperus schweinitzii Torr. FACU UPL FACU+ FACU FACU FAC FACU* FACU FAC UPL,FAC

Cyperus serotinus Rottb. OBL OBL

Cyperus seslerioides Kunth FAC+ FAC FAC,FAC+

Cyperus setigerus Torr. & Hook. NI FAC FAC FAC NI FAC

Cyperus sphacelatus Rottb. NI FAC FAC

Cyperus squarrosus L. FACW+ OBL OBL OBL OBL OBL OBL OBL OBL OBL FACW+,OBL

Cyperus strigosus L. FACW FACW+ FACW FACW FACW FACW FACW FACW FACW FACW FACW,FACW+

Cyperus surinamensis Rottb. FACW FACW FACW FACW FACW

Cyperus tenuis Sw. NI FACW UPL UPL,FACW

Cyperus tetragonus Ell. FAC+ FAC+

Cyperus thyrsiflorus Schlecht. & Cham. FAC FAC FAC

Cyperus trachysanthos Hook. & Arn. FACW FACW

Cyperus trinervis R. Br. FACW FACW

Cyperus unioloides R. Br. OBL OBL

Cyperus virens Michx. FACW FACW FACW FACW FACW* FACW FACW+ FACW*,FACW+

Cypripedium acaule Ait. FACU- FAC- FACW FACU-,FACW

Cypripedium X andrewsii A.M. Fuller NI FACW FACW FACW

Cypripedium arietinum Ait. f. FACW+ FACW+ FACW+



North Central

North Plains

Central Plains




Cypripedium californicum Gray OBL OBL OBL

Cypripedium candidum Muhl. ex Willd. OBL NI OBL OBL OBL OBL

Cypripedium fasciculatum Kellogg ex S. Wats. NI FACU FACU FAC FACU,FAC

Cypripedium montanum Dougl. ex Lindl. NI FACU FAC- FACU FACU,FAC-

Cypripedium parviflorum Salisb. FACW- FAC- FAC+ FACW FACW FACW- FACW FACW FACW- FACW FAC-,FACW

Cypripedium passerinum Richards. NI FACW FAC FAC,FACW

Cypripedium planipetalum (Fern.) Morris & Eames FACW FACW

Cypripedium pubescens Willd. FAC+ FACU FAC+ FACW FACW FACW- FACW FACW- FACU,FACW

Cypripedium reginae Walt. FACW FACW- FACW+ FACW FACW-,FACW+

Cypselea humifusa Turp. FACW FACW* FACW* FACW OBL FACW*,OBL

Cyrilla racemiflora L. FACW FACW FACW+ FACW+ FACW,FACW+

Cyrtandra grayana Hbd. FAC FAC

Cyrtandra grayi C.B. Clarke FAC FAC

Cyrtandra hashimotoi Rock FAC FAC

Cyrtandra lessoniana Gaud. FAC FAC

Cyrtandra longifolia (Wawra) Hbd. ex C.B. Clarke FAC FAC

Cyrtandra oenobarba Mann FACW+ FACW+

Cyrtandra paludosa Gaud. FAC FAC

Cyrtandra platyphylla Gray FACU FACU

Cyrtandra viridiflora St. John & Storey FACW FACW

Cyrtococcum patens (L.) A. Camus FAC FAC

Cyrtosperma chamissonis (Schott) Merr. OBL OBL

Cystopteris bulbifera (L.) Bernh. FAC FAC FACW- FACW FAC FACW FACW FAC NI FAC,FACW

Cystopteris fragilis (L.) Bernh. FACU FACU FACU FACU FACU FACU FACU+ FACU FACU FACU FACU NI FACU,FACU+

Cystopteris montana (Lam.) Bernh. ex Desv. NI FAC+ FAC FAC FAC,FAC+

Cystopteris protrusa (Weatherby) Blasdell NI FAC* NI NI NI FAC*

Dactylis glomerata L. FACU FACU FACU FACU FACU FACU+ FACU+ FACU FACU FACU FACU UPL UPL UPL,FACU+

Dactyloctenium aegyptium (L.) Willd. NI FACU- NI NI NI NI NI UPL UPL NI UPL,FACU-

Dactylorhiza aristata (Fisch. ex Lindl.) Soó FAC FAC

Dalbergia brownii (Jacq.) Schinz FACW FACW

Dalbergia candenatensis (Dennst.) Prain FACW FACW

Dalbergia ecastaphyllum (L.) Taubert FACW+ FACW- FACW-,FACW+

Dalbergia monetaria L. f. FAC+ FAC+

Dalbergia palauensis Hosokawa NI

Dalea carnea (Michx.) Poir. FACW FACW

Dalea leporina (Ait.) Bullock NI NI NI FACU FACU UPL* UPL* NI UPL*,FACU



North Central

North Plains

Central Plains




Dalibarda repens L. FAC FACW+ FACU- FACU-,FACW+

Danaea elliptica Sm. OBL OBL

Danaea jenmanii Underwood OBL OBL

Danaea nodosa (L.) Sm. OBL OBL

Danaea urbanii Maxon OBL OBL

Danthonia californica Boland. NI FACU* NI FACU FAC- FACU* FACW FACU*,FACW

Danthonia compressa Austin ex Peck FACU- FACU- NI FACU-

Danthonia decumbens (L.) DC. NI NI NI

Danthonia intermedia Vasey FAC FAC NI FAC- FACU FACU+ FAC FAC FACU,FAC

Danthonia sericea Nutt. FACU FACU- FACU FACU-,FACU

Daphnopsis philippiana Krug & Urban FAC FAC

Darlingtonia californica Torr. OBL OBL OBL

Darmera peltata (Torr. ex Benth.) Voss NI OBL OBL OBL

Dasistoma macrophylla (Nutt.) Raf. FACU FAC FACU- FAC- FAC FACU-,FAC

Datisca glomerata (K. Presl) Baill. NI FACW FACW

Datura metel L. NI NI FACU+* UPL NI UPL,FACU+*

Decodon verticillatus (L.) Ell. OBL OBL OBL OBL OBL

Decumaria barbara L. OBL FACW FACW,OBL

Deeringothamnus pulchellus Small FAC FAC

Deeringothamnus rugelii (B.L. Robins.) Small FACW FACW

Delosperma litorale (Kensit) L. Bolus FACU* FACU*

Delphinium andesicola Ewan FACU FACU

Delphinium barbeyi (Huth) Huth NI FAC* FAC FAC+ FAC*,FAC+

Delphinium burkei Greene NI NI FACU- FACU-

Delphinium californicum Torr. & Gray FACU FACU

Delphinium glaucescens Rydb. FACU FACU

Delphinium glaucum S. Wats. FACW* FACW FACW FACW FACW FACW*,FACW

Delphinium hesperium ssp. cuyamacae (Abrams) Lewis & Epling FAC FAC

Delphinium leucophaeum Greene FACU FACU

Delphinium multiplex (Ewan) C.L. Hitchc. FAC* FAC*

Delphinium occidentale (S. Wats.) S. Wats. NI NI UPL FACU FACU- UPL,FACU

Delphinium polycladon Eastw. NI FACW FACW

Delphinium recurvatum Greene FACU FACU

Delphinium sapellonis Cockerell FAC- FAC-

Delphinium scopulorum Gray FAC FAC

Delphinium sonnei Greene FACW* FAC FACW FAC,FACW



North Central

North Plains

Central Plains




Delphinium tenuisectum Greene FAC- FAC-

Delphinium uliginosum Curran NI OBL OBL

Dendranthema arcticum (L.) Tzvelev NI FACW FACW

Dendropanax arboreus (L.) Dcne. & Planch. ex Britt. FACU FACU

Dendropanax laurifolius (E. March.) Dcne. & Planch. ex R.C. Schneid. FAC FAC

Dennstaedtia bipinnata (Cav.) Maxon OBL FAC FAC,OBL

Dennstaedtia punctilobula (Michx.) T. Moore UPL UPL NI UPL

Deparia acrostichoides (Sw.) M. Kato FAC FAC FAC NI FAC

Deparia prolifera (Kaulfuss) Hook. & Grev. NI

Derris elliptica (Roxb.) Benth. FACU FACU

Derris trifoliata Lour. FAC+ FAC+

Deschampsia cespitosa (L.) Beauv. FACW FACW FACW+ FACW FACW- FACW FACW FACW FAC FAC,FACW+

Deschampsia cespitosa ssp. brevifolia (R. Br.) Tzvelev NI NI OBL OBL

Deschampsia cespitosa ssp. paramushirensis (Honda) Tzvelev OBL OBL

Deschampsia danthonioides (Trin.) Munro NI FACW- FACW FACW- FACW FAC FAC,FACW

Deschampsia elongata (Hook.) Munro NI NI FAC FACW FACW- FACW FAC FAC,FACW

Deschampsia nubigena Hbd. FAC FAC

Descurainia californica (Gray) O.E. Schulz NI UPL UPL NI FACU* UPL,FACU*

Descurainia incana ssp. incana (Bernh. ex Fisch. & C.A. Mey.) Dorn NI NI NI NI NI NI FACU NI NI NI FACU

Descurainia obtusa ssp. adenophora (Woot. & Standl.) Detling NI NI UPL UPL

Desmanthus illinoensis (Michx.) MacM. ex B.L. Robins. & Fern. FAC FAC FAC- FACU FACU FACU UPL FACU UPL,FAC

Desmanthus virgatus (L.) Willd. FACU FACU FACU FACU FACU* FACU*,FACU

Desmodium adscendens (Sw.) DC. FACW FACW

Desmodium barbatum (L.) Benth. FACW FACW

Desmodium canadense (L.) DC. FAC FAC- FAC- FACU FAC FAC FACU,FAC

Desmodium incanum DC. FAC* NI FACU NI FACU,FAC*

Desmodium paniculatum (L.) DC. UPL FACU FACU UPL FAC- UPL,FAC-

Desmodium sandwicense E. Mey. FACU* FACU*

Desmodium scorpiurus (Sw.) Desv. NI FAC FAC

Desmodium tenuifolium Torr. & Gray FAC* FACU FACU,FAC*

Desmodium triflorum (L.) DC. FACU FACU FACU* FACU*,FACU

Diamorpha smallii Britt. ex Small FACW+ FACW+ FACW+

Dianthus armeria L. UPL UPL NI NI NI NI NI NI NI NI UPL,FACU-


Dianthus deltoides L. NI NI NI NI NI NI FAC* FAC*

Diapensia lapponica L. NI UPL* UPL*



North Central

North Plains

Central Plains




Dicentra formosa (Andr.) Walp. NI FACU* NI FACU*

Dichanthelium aciculare (Desv. ex Poir.) Gould & C.A. Clark FACU FACU FACU- FACU FACU- FACU-,FACU

Dichanthelium acuminatum (Sw.) Gould & C.A. Clark FAC FAC FAC FAC FAC FAC FAC FACW FAC FACW FACU- NI FACU-,FACW

Dichanthelium acuminatum var. fasciculatum (Torr.) Freckmann NI NI NI NI NI NI FAC* FACW FACW FACW NI FAC*,FACW

Dichanthelium boreale (Nash) Freckmann FACU FACU+ FACU+ FACU,FACU+

Dichanthelium clandestinum (L.) Gould FAC+ FACW FACW FACW FAC+ FAC+,FACW

Dichanthelium commutatum (J.A. Schultes) Gould FACU+ FAC FAC FAC FACU+,FAC

Dichanthelium consanguineum (Kunth) Gould & C.A. Clark FACU FAC FACU FACU FACU,FAC

Dichanthelium cynodon (Reichardt) C.A. Clark & Gould OBL OBL

Dichanthelium dichotomum (L.) Gould FAC FAC FAC- FAC FAC FAC-,FAC

Dichanthelium erectifolium (Nash) Gould & C.A. Clark OBL OBL

Dichanthelium hillebrandianum (A.S. Hitchc.) C.A. Clark & Gould OBL OBL

Dichanthelium isachnoides (Munro ex Hbd.) C.A. Clark & Gould OBL OBL

Dichanthelium koolauense (St. John & Hosaka) C.A. Clark & Gould OBL OBL

Dichanthelium latifolium (L.) Gould & C.A. Clark FACU- FACU FACU FACU FACU FACU-,FACU

Dichanthelium laxiflorum (Lam.) Gould FACU FAC FAC- FAC- FACU,FAC

Dichanthelium leibergii (Vasey) Freckmann FACU FACU+ FACU FAC FACU,FAC

Dichanthelium oligosanthes (J.A. Schultes) Gould FACU FACU FACU FACU FACU FACU FACU FAC FACU* FACU FACU*,FAC

Dichanthelium ovale (Ell.) Gould & C.A. Clark FACU FACU FACU FACU- NI* FACU-,FACU

Dichanthelium ravenelii (Scribn. & Merr.) Gould FACU- FACU FAC FAC FACU-,FAC

Dichanthelium sabulorum (Lam.) Gould & C.A. Clark FACU FACU FAC- FAC FAC FACU,FAC

Dichanthelium scabriusculum (Ell.) Gould & C.A. Clark OBL OBL NI OBL NI NI OBL

Dichanthelium scoparium (Lam.) Gould FACW FACW FACW FAC FACW- FAC+ FAC,FACW

Dichanthelium sphaerocarpon (Ell.) Gould FACU FACU FACU FACU FACU FACU

Dichanthelium strigosum var. leucoblepharis (Trin.) Freckmann FAC FACW FACU- FACU-,FACW

Dichelostemma capitatum ssp. capitatum (Benth.) Wood FAC* FAC*

Dichondra carolinensis Michx. FACW FAC FAC+ FAC,FACW

Dichondra micrantha Urban FACW- FACW-

Dichondra recurvata Tharp & M.C. Johnston FAC FAC

Dichondra repens J.R. Forst. FACU FACU FAC FACU,FAC

Dichondra sericea Sw. FACU FACU

Dicliptera brachiata (Pursh) Spreng. FACW FACW FACW FACW FACW FACW

Dicranopteris emarginata (T. Moore) W.J. Robins. FACU FACU

Dicranopteris flexuosa (Schrad.) Underwood FAC FAC FAC

Dicranopteris linearis (Burm.) Underwood FACU FACU

Dicranopteris pectinata (Willd.) Underwood FACW FACW



North Central

North Plains

Central Plains




Dicranopteris rubiginosa (Mett.) Maxon OBL OBL

Didiplis diandra (Nutt. ex DC.) Wood OBL OBL OBL OBL OBL NI OBL

Didymopanax morototonii (Aubl.) Dcne. & Planch. FAC FAC

Diectomis fastigiata (Sw.) Beauv. NI

Dieffenbachia seguine (Jacq.) Schott OBL OBL

Diellia laciniata (Hbd.) Diels NI

Digitalis purpurea L. NI NI NI NI NI FACU* UPL NI UPL,FACU*

Digitaria ciliaris (Retz.) Koel. NI NI NI NI NI NI NI NI FAC FAC

Digitaria eriantha Steud. FACU NI FACU FAC FACU,FAC

Digitaria horizontalis Willd. NI NI FAC FAC

Digitaria insularis (L.) Mez ex Ekman FAC- NI FAC UPL FACU FACU UPL,FAC

Digitaria ischaemum (Schreb.) Muhl. UPL UPL FACU UPL UPL UPL UPL FACU FACU FAC* UPL UPL,FAC*

Digitaria pauciflora A.S. Hitchc. FACW FACW

Digitaria sanguinalis (L.) Scop. FACU- FAC- FACU FACU FACU FACU FACU FACU FACU FACU UPL UPL,FAC-

Digitaria serotina (Walt.) Michx. FAC FAC FAC FAC

Digitaria setigera Roth ex Roemer & J.A. Schultes NI NI FAC FAC

Digitaria violascens Link NI NI NI NI NI FAC FAC

Dilomilis montana (Sw.) Summerhayes FACW FACW

Dimeria ciliata Merr. FAC FAC

Dimeria ornithopoda Trin. FACW FACW

Dioclea multiflora (Torr. & Gray) C. Mohr FAC FAC+ FACW- FACU FACU,FACW-

Diodia serrulata (Beauv.) G. Taylor FACU FACU

Diodia teres Walt. UPL FACU- FACU FACU FACU- FACU- NI UPL,FACU

Diodia virginiana L. FACW FACW FACW NI OBL FACW,OBL

Dionaea muscipula Ellis NI FACW FACW

Dioscorea quaternata J.F. Gmel. FACU FAC FACU NI UPL UPL,FAC

Dioscorea villosa L. FAC+ FACW FAC+ FACU FAC NI FACU,FACW

Diospyros virginiana L. FAC- FAC FAC FACU FAC NI FACU,FAC

Diphylleia cymosa Michx. FACU+ FACU+ FACU+

Diplacus parviflorus Greene FACU- FACU-

Diplazium centripetale (Baker) Maxon OBL OBL

Diplazium cristatum (Desr.) Alston FACW FACW

Diplazium expansum Willd. OBL OBL

Diplazium grandifolium (Sw.) Sw. FACW FACW

Diplazium hymenodes (Mett.) A.& D. Löve FACW FACW

Diplazium lherminieri Hieron. OBL OBL



North Central

North Plains

Central Plains




Diplazium plantaginifolium (L.) Urban FAC+ FAC+

Diplazium pycnocarpon (Spreng.) Broun FAC FAC+ FAC- FACU FACU,FAC+

Diplazium riedelianum (Bong. ex Kunze) K. Presl FAC FAC

Diplazium striatum (L.) K. Presl OBL OBL

Diplazium unilobum (Poir.) Hieron. FACU FACU

Dipsacus fullonum L. NI NI NI NI NI NI NI FACW NI FACW- FACW-,FACW

Dipsacus fullonum ssp. sylvestris (Huds.) Clapham FACU- FACU* NI NI FACW NI FACU-,FACW

Dirca occidentalis Gray FAC* FAC*

Dirca palustris L. FAC FACU- FAC NI FAC* FACU-,FAC

Disporum trachycarpum (S. Wats.) Benth. & Hook. f. UPL UPL FACU* FACU* NI UPL,FACU*

Distichlis spicata (L.) Greene FACW+ FACW+ FACW FACW FACW FAC FACW FAC+* FAC+ FACW NI FAC,FACW+

Ditta myricoides Griseb. FACW FACW

Dodecatheon alpinum (Gray) Greene OBL OBL FACW+ OBL FACW+,OBL

Dodecatheon conjugens Greene NI FAC* FACU FAC* FACU,FAC*

Dodecatheon dentatum Hook. FAC* FAC FACW* FAC*,FACW*

Dodecatheon dentatum ssp. ellisiae (Standl.) H.J. Thompson FACW NI FACW

Dodecatheon frigidum Cham. & Schlecht. FACW FACW

Dodecatheon jeffreyi Van Houtte NI FACW+ FACW FACW FACW,FACW+

Dodecatheon meadia L. FACU FACU FACU NI FACU FAC NI NI NI FACU,FAC

Dodecatheon meadia ssp. meadia L. NI NI NI FACW FACW NI FACW FACW FACW FACW

Dodecatheon poeticum Henderson FAC FAC

Dodecatheon pulchellum (Raf.) Merr. NI FACW* FACW- FAC FACW FACW FACW FACW FACW FAC,FACW

Dodecatheon redolens (Hall) H.J. Thompson OBL OBL OBL

Dodecatheon subalpinum Eastw. FACU* FACU*

Dodonaea viscosa (L.) Jacq. NI NI FACU NI FACU

Dolichandrone spathacea (L. f.) K. Schum. OBL OBL

Donax canniformis (Forst. f.) K. Schum. FAC FAC

Dopatrium junceum (Roxb.) Buch.-Ham. ex Benth. OBL OBL OBL OBL

Downingia bacigalupii Weiler OBL NI OBL OBL

Downingia bella Hoover OBL OBL

Downingia bicornuta Gray OBL OBL OBL OBL

Downingia concolor Greene OBL OBL

Downingia cuspidata (Greene) Greene ex Jepson OBL OBL

Downingia elegans (Dougl. ex Lindl.) Torr. NI OBL OBL OBL

Downingia insignis Greene OBL NI OBL OBL

Downingia laeta (Greene) Greene NI OBL OBL OBL OBL



North Central

North Plains

Central Plains




Downingia montana Greene NI OBL OBL

Downingia ornatissima Greene OBL OBL

Downingia pulchella (Lindl.) Torr. NI OBL OBL

Downingia pusilla (G. Don) Torr. OBL OBL

Downingia yina Applegate OBL OBL OBL

Draba albertina Greene NI NI NI FAC* NI FAC FAC*,FAC

Draba aurea Vahl ex Hornem. FAC NI FAC UPL FACU* UPL UPL,FAC

Draba cana Rydb. NI NI NI NI NI NI NI UPL NI UPL

Draba helleriana Greene NI FACU FAC FACU,FAC

Draba paucifructa Clokey & C.L. Hitchc. FAC* FAC*

Draba praealta Greene NI NI NI FACW NI FACW

Draba spectabilis Greene NI FACU* FACU- FACU-,FACU*

Draba stenoloba Ledeb. NI FAC* NI FACW* FACU* FACU*,FACW*

Dracocephalum parviflorum Nutt. FACU- FACU FACU FACU FACU FACU FACU FACU FACU FACU-,FACU

Dracontium polyphyllum L. FACW FACW

Dracopis amplexicaulis (Vahl) Cass. FAC FACU-* FACW FACW FAC+ FACW FACU-*,FACW

Drosera anglica Huds. OBL OBL OBL OBL OBL OBL OBL

Drosera brevifolia Pursh OBL OBL NI NI OBL OBL

Drosera capillaris Poir. OBL OBL OBL OBL OBL

Drosera filiformis Raf. OBL OBL OBL

Drosera intermedia Hayne OBL OBL OBL OBL OBL

Drosera linearis Goldie OBL OBL NI NI OBL

Drosera X obovata Mert. & Koch (pro sp.) NI OBL OBL

Drosera rotundifolia L. OBL OBL OBL OBL OBL OBL OBL OBL OBL

Dryas drummondii Richards. ex Hook. NI FACU FACU FACU

Dryas integrifolia Vahl NI NI FACU FACU FACU

Drymaria cordata (L.) Willd. ex J.A. Schultes FAC FAC FAC FAC

Drymaria pachyphylla Woot. & Standl. FACU* FACU* FACU*

Dryopteris X australis (Wherry) Small (pro sp.) NI FACW FACW

Dryopteris X boottii (Tuckerman) Underwood (pro sp.) FACW NI FACW FACW

Dryopteris campyloptera Clarkson NI UPL NI NI NI NI NI UPL

Dryopteris carthusiana (Vill.) H.P. Fuchs FAC+ FACW FACW- FACW FACW FAC+ FAC+,FACW

Dryopteris celsa (Wm. Palmer) Knowlt., Palmer & Pollard ex Small OBL FAC+ OBL FAC+,OBL

Dryopteris clintoniana (D.C. Eat.) Dowell FACW+ FACW+ FACW+

Dryopteris cristata (L.) Gray FACW+ OBL OBL OBL FACW FACW FACW,OBL

Dryopteris davallioides (Brack.) Kuntze FACU FACU



North Central

North Plains

Central Plains




Dryopteris expansa (K. Presl) Fraser-Jenkins & Jermy FAC NI FACU FACW FACW FACU FACU,FACW

Dryopteris fuscoatra (Hbd.) W.J. Robins. NI FAC FAC

Dryopteris glabra (Brack.) Kuntze FAC FAC

Dryopteris goldiana (Hook. ex Goldie) Gray FAC+ FAC- FAC FAC-,FAC+

Dryopteris intermedia (Muhl. ex Willd.) Gray FACU FACU FAC FACU,FAC

Dryopteris ludoviciana (Kunze) Small NI FACW FACW+ FACW,FACW+

Dryopteris marginalis (L.) Gray FACU- FACU FACU FACU FACU FACU-,FACU

Dryopteris X triploidea Wherry FAC FAC FAC FAC

Dryopteris X uliginosa (A. Braun ex Dowell) Druce FAC FAC* NI FAC*,FAC

Drypetes alba Poit. FACU FACU

Drypetes glauca Vahl FACW FACW

Dubautia dolosa (O. Deg. & Sherff) G.D. Carr FAC FAC

Dubautia imbricata St. John & G.D. Carr FAC FAC

Dubautia knudsenii Hbd. FACU* FACU*

Dubautia laxa Hook. & Arn. FACW FACW

Dubautia paleata Gray FACW+ FACW+

Dubautia pauciflorula St. John & G.D. Carr FAC FAC

Dubautia plantaginea Gaud. FACU FACU

Dubautia raillardioides Hbd. FAC FAC

Dubautia reticulata (Sherff) Keck FACU FACU

Dubautia scabra (DC.) Keck FACU- FACU-

Dubautia waialealae Rock FACW FACW

Duchesnea indica (Andr.) Focke FACU- FACU* FACU- FAC UPL UPL UPL,FAC

Dudleya variegata (S. Wats.) Moran FACU FACU

Dugaldia hoopesii (Gray) Rydb. NI FAC+ FACU FAC FACW FACU,FACW

Dulichium arundinaceum (L.) Britt. OBL OBL OBL OBL OBL OBL OBL OBL OBL

Dupontia fisheri R. Br. FACW FACW

Dyschoriste angusta (Gray) Small FAC FAC

Dyschoriste humistrata (Michx.) Kuntze FACW FACW

Dysoxylum huntii Merr. FACU FACU

Echinochloa colona (L.) Link FACW FACW FACW FACW FACW FACW FAC FACW FACW FACW FAC,FACW

Echinochloa crus-galli (L.) Beauv. FACU FACW- FACW FACW FACW FACW- FACW- FACW FACW FACW OBL FACW FACU,OBL

Echinochloa crus-pavonis (Kunth) J.A. Schultes FACW+ OBL FACW OBL OBL FACW FACW OBL OBL FACW,OBL

Echinochloa muricata (Beauv.) Fern. FACW+ FAC OBL OBL OBL FACW FACW FACW FACW FACW NI FAC,OBL

Echinochloa oryzoides (Ard.) Fritsch OBL OBL

Echinochloa paludigena Wieg. OBL OBL OBL



North Central

North Plains

Central Plains




Echinochloa polystachya (Kunth) A.S. Hitchc. OBL FACW+ OBL FACW+,OBL

Echinochloa stagnina (Retz.) Beauv. NI FACW+ FACW+

Echinochloa walteri (Pursh) Heller FACW+ OBL OBL OBL OBL FACW+,OBL

Echinocystis lobata (Michx.) Torr. & Gray FAC FACW- FACW- FAC FAC FAC FAC FAC FACU FACU,FACW-

Echinodorus berteroi (Spreng.) Fassett OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL NI OBL

Echinodorus cordifolius (L.) Griseb. OBL OBL OBL OBL OBL OBL OBL

Echinodorus parvulus Engelm. OBL OBL OBL FACW OBL OBL FACW,OBL

Echinopepon wrightii (Gray) S. Wats. FAC* FAC FAC*,FAC

Eclipta prostrata (L.) L. FAC FACW- FACW OBL FACW FACW FAC FAC+ OBL FACW FAC,OBL

Egeria densa Planch. OBL OBL OBL OBL OBL OBL NI OBL OBL NI OBL OBL

Egletes viscosa (L.) Less. FACW FACW

Ehrharta stipoides Labill. FAC FAC

Eichhornia crassipes (Mart.) Solms OBL OBL OBL OBL OBL OBL OBL OBL OBL

Eichhornia diversifolia (Vahl) Urban OBL OBL

Elaeagnus angustifolia L. FACU FAC FACU- FAC- FAC FAC FACW- FAC FAC FAC FACU-,FACW-

Elaeagnus commutata Bernh. ex Rydb. NI UPL* FAC FAC NI FAC* NI FAC UPL*,FAC

Elaeocarpus bifidus Hook. & Arn. FACU FACU

Elaeocarpus carolinensis Koidzumi FACU FACU

Elaphoglossum aemulum (Kaulfuss) Brack. FAC FAC

Elaphoglossum alatum Gaud. FAC FAC

Elaphoglossum peltatum (Sw.) Urban NI*

Elaphoglossum wawrae (Luerss.) C. Christens. FAC FAC

Elatine ambigua Wight OBL OBL

Elatine americana (Pursh) Arn. OBL NI OBL OBL OBL OBL OBL

Elatine brachysperma Gray OBL OBL FACW NI FACW FACW OBL OBL OBL FACW,OBL

Elatine californica Gray NI OBL NI OBL OBL OBL

Elatine chilensis Gray OBL OBL OBL

Elatine heterandra Mason OBL OBL

Elatine minima (Nutt.) Fisch. & C.A. Mey. OBL OBL OBL

Elatine rubella Rydb. NI OBL OBL OBL OBL

Elatine triandra Schkuhr OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL

Elatostema grandifolium Reinecke FACU FACU

Eleocharis acicularis (L.) Roemer & J.A. Schultes OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL

Eleocharis acutangula (Roxb.) J.A. Schultes FAC+ FAC+

Eleocharis acutisquamata Buckl. OBL* OBL OBL*,OBL

Eleocharis albida Torr. OBL OBL OBL OBL



North Central

North Plains

Central Plains




Eleocharis atropurpurea (Retz.) J.& K. Presl NI FACW FACW FACW FACW FACW FACW FACW+ FACW FACW+ OBL FACW,OBL

Eleocharis austrotexana M.C. Johnston OBL OBL

Eleocharis baldwinii (Torr.) Chapman OBL FACW+ FACW FACW,OBL

Eleocharis bella (Piper) Svens. FACW FACW FACW FACW FACW

Eleocharis bolanderi Gray FACW FACW+ FACW FACW,FACW+

Eleocharis cellulosa Torr. OBL OBL OBL OBL

Eleocharis compressa Sullivant OBL* FACW+ FACW FACW FACW FACW FACW NI FACW,OBL*

Eleocharis congesta D. Don OBL OBL

Eleocharis cylindrica Buckl. OBL OBL OBL

Eleocharis dulcis (Burm. f.) Trin. ex Henschel OBL OBL

Eleocharis elegans (Kunth) Roemer & J.A. Schultes OBL OBL

Eleocharis elongata Chapman OBL OBL OBL

Eleocharis engelmannii Steud. FACW+ FACW FACW FACW NI FACW OBL* FACW OBL FACW+ FACW,OBL

Eleocharis equisetoides (Ell.) Torr. OBL OBL OBL OBL OBL

Eleocharis erythropoda Steud. OBL OBL OBL OBL OBL OBL NI OBL OBL OBL OBL

Eleocharis fallax Weatherby OBL OBL OBL OBL OBL

Eleocharis flavescens (Poir.) Urban OBL OBL OBL OBL NI OBL OBL OBL OBL

Eleocharis geniculata (L.) Roemer & J.A. Schultes FACW+ FACW+ FACW FACW FACW OBL OBL OBL FACW,OBL

Eleocharis halophila (Fern. & Brack.) Fern. & Brack. OBL OBL OBL

Eleocharis intermedia J.A. Schultes FACW+ FACW FACW NI FACW,FACW+

Eleocharis interstincta (Vahl) Roemer & J.A. Schultes OBL OBL OBL OBL

Eleocharis kamtschatica (C.A. Mey.) Komarov FACW FACW

Eleocharis lanceolata Fern. FACW FACW FACW+ FACW FACW,FACW+

Eleocharis melanocarpa Torr. FACW+ FACW FACW+ FACW FACW,FACW+

Eleocharis microcarpa Torr. OBL OBL OBL OBL NI* OBL

Eleocharis minima Kunth NI OBL OBL NI OBL

Eleocharis montana (Kunth) Roemer & J.A. Schultes OBL OBL OBL OBL OBL

Eleocharis montevidensis Kunth FACW+ FACW FACW+ FACW NI FACW FACW,FACW+

Eleocharis mutata (L.) Roemer & J.A. Schultes NI OBL OBL OBL

Eleocharis nana Kunth OBL OBL

Eleocharis nigrescens (Nees) Steud. FACW FACW

Eleocharis nitida Fern. OBL OBL OBL OBL

Eleocharis obtusa (Willd.) J.A. Schultes OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL

Eleocharis ochrostachya Steud. OBL OBL

Eleocharis olivacea Torr. OBL OBL OBL NI NI NI NI NI OBL

Eleocharis ovata (Roth) Roemer & J.A. Schultes OBL OBL OBL OBL OBL NI OBL OBL NI OBL



North Central

North Plains

Central Plains




Eleocharis pachycarpa Desv. OBL OBL NI* OBL

Eleocharis pachystyla (C. Wright) C.B. Clarke OBL OBL

Eleocharis palustris (L.) Roemer & J.A. Schultes OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL

Eleocharis parishii Britt. FACW OBL FACW+ FACW FACW,OBL

Eleocharis parvula (Roemer & J.A. Schultes) Link ex Bluff, Nees & Scha OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL

Eleocharis quadrangulata (Michx.) Roemer & J.A. Schultes OBL OBL OBL OBL OBL OBL OBL

Eleocharis quinqueflora (F.X. Hartmann) Schwarz OBL NI OBL OBL OBL OBL OBL OBL OBL OBL OBL

Eleocharis radicans (A. Dietr.) Kunth OBL OBL OBL OBL OBL OBL NI OBL OBL

Eleocharis retroflexa (Poir.) Urban OBL OBL OBL

Eleocharis robbinsii Oakes OBL OBL OBL OBL

Eleocharis rostellata (Torr.) Torr. OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL

Eleocharis setifolia (A. Rich.) Raynal NI NI*

Eleocharis sintenisii Boeckl. NI OBL OBL

Eleocharis smallii Britt. OBL OBL OBL OBL OBL OBL NI OBL

Eleocharis tenuis (Willd.) J.A. Schultes FACW+ FACW FACW NI FACW FACW NI FACW FACW,FACW+

Eleocharis tortilis (Link) J.A. Schultes FACW+ FACW FACW FACW,FACW+

Eleocharis tricostata Torr. OBL FACW+ OBL FACW+,OBL

Eleocharis tuberculosa (Michx.) Roemer & J.A. Schultes OBL FACW+ OBL FACW+,OBL

Eleocharis uniglumis (Link) J.A. Schultes OBL NI OBL OBL OBL

Eleocharis vivipara Link OBL OBL NI OBL

Eleocharis wolfii (Gray) Gray ex Britt. OBL OBL OBL OBL OBL OBL OBL

Elephantopus carolinianus Raeusch. FACU FAC FAC- FAC FAC FACU,FAC

Elephantopus mollis Kunth FAC FACU- FACU-,FAC

Elephantopus nudatus Gray FAC FAC FAC* FAC*,FAC

Eleusine indica (L.) Gaertn. FACU- FACU FACU FACU FACU FACU FACU FACU UPL FACU FAC FACU- UPL,FAC

Eleutheranthera ruderalis (Sw.) Schultz-Bip. FAC FAC FAC

Elliottia pyroliflorus (Bong.) S.W. Brim & P.F. Stevens NI FAC* FAC*

Ellisia nyctelea (L.) L. FACU FAC FAC+ UPL FAC FAC FAC FACU FACU UPL,FAC+

Elodea bifoliata St. John OBL NI OBL OBL OBL OBL

Elodea canadensis Michx. OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL NI OBL

Elodea nuttallii (Planch.) St. John OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL

Elodea schweinitzii (Planch.) Caspary OBL OBL

Eltroplectris calcarata (Hook. f.) Garay & Sweet OBL FACW FACW,OBL

X Elyhordeum macounii (Vasey) Barkworth & Dewey NI FAC- FAC FAC FACU* FAC FACU NI* NI FACU*,FAC

Elymus alaskanus ssp. alaskanus (Scribn. & Merr.) A. Love FAC FAC

Elymus canadensis L. FACU+ FAC FAC- FACU FACU FAC+ FAC FACU FAC FAC* FACU,FAC+



North Central

North Plains

Central Plains




Elymus canadensis var. wiegandii (Fern.) Bowden FAC FAC NI NI FAC

Elymus caninus (L.) L. NI FAC- FAC-

Elymus elymoides (Raf.) Swezey FACU FACU FACU FACU- UPL UPL FACU- FACU- UPL,FACU

Elymus glaucus Buckl. FACU FACU FACU FACU NI NI FACU FACU FACU FACU FACU FACU

Elymus hystrix L. UPL UPL* NI NI NI NI NI UPL*,UPL

Elymus lanceolatus (Scribn. & J.G. Sm.) Gould NI NI NI NI NI NI UPL NI UPL

Elymus lanceolatus ssp. lanceolatus (Scribn. & J.G. Sm.) Gould FACU- FAC FAC FAC UPL FACU- NI* UPL UPL,FAC

Elymus macrourus (Turcz.) Tzvelev FAC FAC

Elymus riparius Wieg. FACW FACW FACW FAC FAC,FACW

Elymus sibiricus L. FAC FAC

Elymus trachycaulus ssp. trachycaulus (Link) Gould ex Shinners FACU FAC FACU+ FAC FAC FAC- FAC FACU FAC FAC* FACU FACU,FAC

Elymus villosus Muhl. ex Willd. FACU- FACU FACU FACU FACU FACU NI FACU-,FACU

Elymus virginicus L. FACW- FAC FACW- FAC FAC FAC FACW FACW FACW FAC,FACW

Elyonurus tripsacoides Humb. & Bonpl. ex Willd. FACW- UPL* UPL*,FACW-

Elytraria caroliniensis (J.F. Gmel.) Pers. FACW FACW

Elytrigia pungens (Pers.) Tutin FACW FACW

Elytrigia repens var. repens (L.) Desv. ex B.D. Jackson FACU- FACU- FACU FAC FAC FACU- FACU- FACU FAC- FAC* NI FACU-,FAC

Empetrum eamesii ssp. atropurpureum (Fern. & Wieg.) D. Löve FAC* NI FAC*

Empetrum nigrum L. FACW FACW- FAC FACU FAC FACU,FACW

Enceliopsis nudicaulis (Gray) A. Nels. UPL* UPL NI UPL UPL*,UPL

Endiandra elaeocarpa Gillespie FACU FACU

Enemion biternatum Raf. FACU- FACW FAC UPL FAC FAC* UPL,FACW

Enhalus acoroides (L. f.) Rich. OBL OBL

Entada phaseoloides (L.) Merr. FACU FACU

Enterosora trifurcata (L.) Bishop NI*

Enydra sessilis (Sw.) DC. OBL OBL

Epidendrum X obrienianum Rolfe NI FACU- FACU-

Epidendrum secundum Jacq. NI FACW FACW

Epilobium anagallidifolium Lam. FACW FAC NI FACW* FACW FACU- FACU* FAC FACU-,FACW

Epilobium angustifolium L. FAC FACU FAC FAC FAC FAC FACU FACU+ FAC FACU FACU,FAC

Epilobium arcticum Samuelsson FACW* FACW*

Epilobium brachycarpum K. Presl UPL* UPL NI UPL UPL UPL UPL UPL*,UPL

Epilobium ciliatum Raf. FAC- OBL* FACU FACW OBL FACU FACW FAC FACW- FACW FACU FAC FACU,OBL

Epilobium clavatum Trel. NI FACU FACU+ FACW* FAC* FACU,FACW*

Epilobium coloratum Biehler FACW+ OBL OBL OBL OBL OBL NI FACW+,OBL

Epilobium davuricum Fisch. ex Hornem. FACW FACW



North Central

North Plains

Central Plains




Epilobium glaberrimum Barbey NI FACW FACW OBL FACW,OBL

Epilobium halleanum Hausskn. NI NI FACW+ NI FAC+ FAC+ FACW FACW FAC+,FACW+

Epilobium hirsutum L. FACW FACW+ NI FACW,FACW+

Epilobium hornemannii Reichenb. FACW FACW FACW FACW FACW+ FACW- FACW FACW FACW-,FACW+

Epilobium howellii Hoch FACW FACW

Epilobium lactiflorum Hausskn. FACW NI NI NI FACW FACW FACW FACW* FACW*,FACW

Epilobium latifolium L. NI NI FACW FACW FACW FAC FAC,FACW

Epilobium leptocarpum Hausskn. NI NI NI FACW FACW

Epilobium leptophyllum Raf. OBL OBL OBL OBL FACW+ OBL* OBL FACW FACW* FACW*,OBL

Epilobium luteum Pursh FACW FACW* FACW FACW*,FACW

Epilobium minutum Lindl. ex Lehm. NI NI NI FACU* FACU*

Epilobium obcordatum Gray UPL FACU FACU* UPL,FACU

Epilobium oreganum Greene OBL OBL OBL

Epilobium oregonense Hausskn. NI NI FACW FACW FACW OBL FACW,OBL

Epilobium palustre L. OBL OBL OBL OBL OBL OBL OBL OBL OBL

Epilobium pygmaeum (Speg.) P. Hoch & Raven NI NI OBL OBL

Epilobium saximontanum Hausskn. FACW+ FACW FACW FAC FACW FACW FAC,FACW+

Epilobium siskiyouense (Munz) Hoch & Raven FACW FACW FACW

Epilobium strictum Muhl. ex Spreng. OBL OBL NI OBL

Epilobium suffruticosum Nutt. NI FACU FACU

Epipactis gigantea Dougl. ex Hook. OBL NI OBL OBL OBL OBL OBL OBL

Epipactis helleborine (L.) Crantz UPL NI NI NI NI NI NI UPL,FACU

Great Lakes Plain FACU

Equisetum arvense L. FAC FAC FAC FAC FAC FAC+ FACW- FAC+ FAC FAC FAC* FAC*,FACW-

Equisetum X ferrissii Clute (pro sp.) NI FACW FACW FACW FAC FACW FACW NI NI NI FAC,FACW

Equisetum fluviatile L. OBL OBL OBL OBL OBL OBL OBL

Equisetum hyemale L. FACW FAC+ FACW- FACW FACW FACW FACW FACW FACW FACW FACW FAC+,FACW

Equisetum laevigatum A. Braun FACW FAC FACW FAC FACW FACW FACW FACW FACW FACW FAC,FACW

Equisetum X litorale Kühlewein ex Rupr. (pro sp.) OBL OBL NI NI NI OBL OBL

Equisetum X mackaii (Newm.) Brichan NI NI FACW+ NI NI FACW* FACW*,FACW+

Equisetum X nelsonii (A.A. Eat.) Schaffn. (pro sp.) NI FAC+ NI NI FAC+

Equisetum palustre L. FACW FACW FACW NI FACW FACW FACW FACW

Equisetum pratense Ehrh. FACW FACW FACW FACW NI FACW FAC* FAC*,FACW

Equisetum scirpoides Michx. FAC FAC+ FAC FAC FACU FACU,FAC+

Equisetum sylvaticum L. FACW NI FACW FACW FACW FACU FACU,FACW

Equisetum telmateia Ehrh. NI OBL FACW OBL FACW,OBL



North Central

North Plains

Central Plains




Equisetum variegatum Schleich. ex F. Weber & D.M.H. Mohr FACW FACW FACW FACW FACW+ FACW FACW FACW,FACW+

Eragrostis atrovirens (Desv.) Trin. ex Steud. FAC FAC

Eragrostis bahiensis (Schrad. ex J.A. Schultes) J.A. Schultes FAC FAC

Eragrostis campestris Trin. FACW NI FACW- FACW FACW-,FACW

Eragrostis cilianensis (All.) Lut. ex Janchen FACU FACU FACU FACU FACU FACU FACU+ FACU FACU FACU FACU FACU,FACU+

Eragrostis ciliaris (L.) R. Br. NI FACU FACU FAC NI FACU,FAC

Eragrostis frankii C.A. Mey. ex Steud. FACW FACW FACW FAC FACW FAC,FACW

Eragrostis glomerata (Walt.) L.H. Dewey OBL OBL* OBL OBL*,OBL

Eragrostis grandis Hbd. FAC FAC

Eragrostis hirsuta (Michx.) Nees UPL FACU FACU FACU UPL,FACU

Eragrostis hypnoides (Lam.) B.S.P. OBL OBL OBL OBL FAC OBL OBL* OBL OBL OBL OBL FAC,OBL

Eragrostis lugens Nees FAC- FACU FACU,FAC-

Eragrostis lutescens Scribn. NI NI NI NI FACU FACU

Eragrostis mexicana (Hornem.) Link UPL NI FAC NI FACU+ FACU NI NI FAC UPL,FAC

Eragrostis pectinacea (Michx.) Nees ex Steud. FAC FAC FAC FAC FAC FAC FAC FACU FAC FAC NI NI FACU,FAC

Eragrostis pilosa (L.) Beauv. FACU FACU FACU FACU FACU FACU FACU FACU FACU FACU FACU FAC FACU,FAC

Eragrostis prolifera (Sw.) Steud. NI

Eragrostis refracta (Muhl.) Scribn. FACW FACW FACW FACW

Eragrostis reptans (Michx.) Nees FACW+ OBL OBL OBL OBL OBL NI FACW+,OBL

Eragrostis secundiflora J. Presl NI UPL NI FACU- FACU- UPL NI NI* UPL,FACU-

Eragrostis spectabilis (Pursh) Steud. UPL FACU UPL UPL FACU FACU- UPL NI UPL,FACU

Eragrostis unioloides (Retz.) Nees ex Steud. NI OBL NI OBL

Erechtites hieraciifolia (L.) Raf. ex DC. FACU FAC- FACU FAC FAC FACU NI NI FAC FAC FACU,FAC

Erechtites valerianifolia (Spreng.) DC. FAC FAC FAC

Eriastrum densifolium (Benth.) Mason NI UPL UPL

Erica tetralix L. FACU FACU FACU

Erigeron annuus (L.) Pers. FACU FACU FAC- FACU FACU FAC FACU* FACU+ NI* FACU*,FAC

Erigeron asper Nutt. FACW NI NI FACW

Erigeron cervinus Greene NI UPL UPL

Erigeron coulteri Porter NI FACW FACW FACW OBL FACW,OBL

Erigeron elatior (Gray) Greene NI FACW FAC NI FAC,FACW

Erigeron flagellaris Gray FAC FAC FAC FAC- FACU FACU+ FACU,FAC

Erigeron formosissimus Greene FAC NI FAC FACU UPL UPL,FAC

Erigeron glabellus var. pubescens Hook. NI FACW NI NI NI NI FACW

Erigeron glaucus Ker-Gawl. FACU- FACU FACU-,FACU

Erigeron howellii Gray FACW FACW



North Central

North Plains

Central Plains




Erigeron humilis Graham NI UPL FACW- FACW UPL,FACW

Erigeron hyssopifolius Michx. FACW FACW FACW

Erigeron jamaicensis L. OBL OBL

Erigeron kachinensis Welsh & Moore OBL OBL

Erigeron lanatus Hook. NI FACU FACU FACU

Erigeron melanocephalus (A. Nels.) A. Nels. NI NI FAC FAC FAC FAC

Erigeron peregrinus (Banks ex Pursh) Greene NI NI FACW FACW NI FACW FACW FACW

Erigeron philadelphicus L. FACU FAC FACW FACW FAC FAC NA* OBL FACU FAC NI FACU,OBL

Erigeron procumbens (Houst. ex P. Mill.) Nesom FAC FACW- FAC,FACW-

Erigeron pulchellus Michx. FACU FACU+ FACU FACU FACU FACU,FACU+

Erigeron quercifolius Lam. FACW FAC+ FAC+,FACW

Erigeron strigosus Muhl. ex Willd. FACU+ FAC FAC- FACU FAC FAC- FACU FACU NI* FACU,FAC

Erigeron vernus (L.) Torr. & Gray OBL OBL OBL

Eriocaulon aquaticum (Hill) Druce OBL OBL OBL NI OBL

Eriocaulon cinereum R. Br. OBL OBL OBL OBL

Eriocaulon compressum Lam. OBL OBL OBL NI OBL

Eriocaulon decangulare L. OBL OBL OBL OBL

Eriocaulon koernickianum van Heurck & Muell.-Arg. OBL OBL OBL

Eriocaulon lineare Small OBL OBL

Eriocaulon longifolium Nees OBL OBL

Eriocaulon microcephalum Kunth NI

Eriocaulon parkeri B.L. Robins. OBL OBL OBL

Eriocaulon ravenelii Chapman OBL OBL

Eriocaulon sexangulare L. OBL OBL

Eriocaulon texense Koern. OBL OBL OBL

Eriochloa acuminata var. acuminata (J. Presl) Kunth NI FAC FACW* FAC FACW NI FAC* FAC*,FACW

Eriochloa aristata Vasey NI NI FACW FACW FACW

Eriochloa contracta A.S. Hitchc. FACU FAC FAC FACU FAC+ FACW FAC* FAC* FACU,FACW

Eriochloa fatmensis (Hochst. & Steud.) W.D. Clayton NI NI NI FAC FAC

Eriochloa michauxii (Poir.) A.S. Hitchc. FACW- FACW-

Eriochloa polystachya Kunth FACW- NI FACW+ FACW-,FACW+

Eriochloa punctata (L.) Desv. ex Hamilton NI FACW NI FACW- FACW+ FACW FACW-,FACW+

Eriogonum ampullaceum J.T. Howell FACU UPL UPL,FACU

Eriogonum argophyllum Reveal FACW* FACW*

Eriogonum nudum var. deductum (Greene) Jepson NI UPL UPL

Eriogonum umbellatum var. torreyanum (Gray) M.E. Jones NI UPL UPL



North Central

North Plains

Central Plains




Eriophorum alpinum L. OBL OBL NI OBL OBL OBL

Eriophorum angustifolium Honckeny OBL OBL OBL OBL NI OBL OBL OBL OBL OBL

Eriophorum brachyantherum Trautv. & C.A. Mey. NI OBL OBL

Eriophorum callitrix Cham. ex C.A. Mey. NI FACW FACW

Eriophorum chamissonis C.A. Mey. OBL OBL NI OBL OBL OBL

Eriophorum cringerum (Gray) Beetle OBL FACW* FACW*,OBL

Eriophorum gracile W.D.J. Koch OBL OBL OBL OBL OBL OBL OBL OBL OBL

Eriophorum russeolum Fries ex Hartman NI FACW FACW

Eriophorum scheuchzeri Hoppe OBL OBL OBL OBL

Eriophorum tenellum Nutt. OBL OBL OBL

Eriophorum vaginatum L. OBL NI FACW FACW,OBL

Eriophorum vaginatum var. spissum (Fern.) Boivin OBL OBL OBL OBL

Eriophorum virginicum L. OBL OBL OBL OBL

Eriophorum viridicarinatum (Engelm.) Fern. OBL NI OBL OBL OBL OBL OBL

Ernodea littoralis Sw. UPL* UPL UPL*,FAC*

Keys FAC*

Erodium botrys (Cav.) Bertol. NI NI NI FACU* FACU*

Eryngium alismifolium Greene FACW+ NI FACW FACW,FACW+

Eryngium aquaticum L. OBL OBL NI OBL

Eryngium aristulatum Jepson OBL OBL

Eryngium armatum (S. Wats.) Coult. & Rose FACW FACW

Eryngium aromaticum Baldw. FACW FACW

Eryngium articulatum Hook. OBL OBL OBL

Eryngium baldwinii Spreng. FACW+ FACW+

Eryngium campestre L. NI NI

Eryngium castrense Jepson OBL* OBL*

Eryngium constancei Sheikh OBL OBL

Eryngium foetidum L. NI FAC NI FAC

Eryngium heterophyllum Engelm. NI FAC+ FACW- FAC+,FACW-

Eryngium hookeri Walp. FACW FACW* FACW*,FACW

Eryngium integrifolium Walt. NI FACW FACW+ FACW,FACW+

Eryngium mathiasiae Sheikh OBL* OBL*

Eryngium nasturtiifolium Juss. ex Delar. f. FACW* NI FACW*

Eryngium petiolatum Hook. OBL OBL

Eryngium phyteumae Delar. f. OBL OBL

Eryngium pinnatisectum Jepson OBL OBL



North Central

North Plains

Central Plains




Eryngium prostratum Nutt. ex DC. OBL FACW OBL FACW+ FACW,OBL

Eryngium racemosum Jepson OBL OBL

Eryngium sparganophyllum Hemsl. OBL OBL

Eryngium spinosepalum Mathias FACW FACW

Eryngium vaseyi Coult. & Rose FACW FACW

Eryngium yuccifolium Michx. FAC FAC FAC+ FAC FACW FAC,FACW

Erysimum cheiranthoides L. FAC UPL FACU FACU FACU FACU- FACU FACU UPL UPL,FAC

Erythrina fusca Lour. FACW+ OBL FACW+,OBL

Erythrina poeppigiana (Walp.) O.F. Cook FACU FACU

Erythrodes hirtella (Sw.) Fawcett & Rendle FAC FAC

Erythrodes plantaginea (L.) Fawcett & Rendle FAC+ FAC+

Erythronium albidum Nutt. FACU UPL NI NI NI NI UPL,FACU

Erythronium grandiflorum Pursh NI NI NI FACU FACU FACU FACU

Erythronium klamathense Applegate NI UPL UPL

Erythronium revolutum Sm. FAC+ FAC FAC,FAC+

Erythronium rostratum W. Wolf UPL FACU NI FACU FAC* UPL,FAC*

Erythronium umbilicatum Parks & Hardin FAC FAC NI FAC

Eucalyptus camaldulensis Dehnhardt NI NI FAC FAC

Eucalyptus robusta Sm. NI NI FACU FACU

Eucalyptus rudis Sm. FACU* FACU*

Eugenia borinquensis Britt. OBL OBL

Eugenia carolinensis Koidzumi FACU FACU

Eugenia cordata var. sintenisii (Kiaersk.) Krug & Urban FAC FAC

Eugenia eggersii Kiaersk. FACW FACW

Eugenia haematocarpa Alain FAC FAC

Eugenia samarangense Bl. FACU FACU

Eugenia samoense Burkill FACU FACU

Eugenia stahlii (Kiaersk.) Krug & Urban FAC FAC

Eugenia stelechanthoides Kanehira FACU FACU

Eugenia stewardsonii Britt. FACU FACU

Eulophia alta (L.) Fawcett & Rendle FACW OBL FACW,OBL

Eupatorium anomalum Nash FACU* FACU*

Eupatorium betonicifolium P. Mill. FACW FACW

Eupatorium capillifolium (Lam.) Small FACU- FACU FACU FACU FACU-,FACU

Eupatorium coelestinum L. FAC FAC FAC+ FACW FACW- FAC,FACW

Eupatorium compositifolium Walt. NI FAC- FACU* FACU*,FAC-



North Central

North Plains

Central Plains




Eupatorium dubium Willd. ex Poir. FACW FACW FACW

Eupatorium fistulosum Barratt FACW FAC+ OBL FACW FAC+,OBL

Eupatorium greggii Gray FACW-* UPL UPL,FACW-*

Eupatorium incarnatum Walt. FAC FACU+ FAC* FAC NI FACU+,FAC

Eupatorium leptophyllum DC. FAC+ FAC+

Eupatorium leucolepis (DC.) Torr. & Gray FACW+ FACW+ FACW+ FACW+

Eupatorium macrophyllum L. FACW FACW

Eupatorium maculatum var. maculatum L. FACW FACW- OBL FACW+ OBL OBL* OBL OBL FACW-,OBL

Eupatorium mikanioides Chapman FACW FACW

Eupatorium mohrii Greene FAC+ FACW- NI FAC+,FACW-

Eupatorium perfoliatum L. FACW+ FACW+ FACW+ OBL OBL FACW+ FACW+,OBL

Eupatorium pilosum Walt. FACW FACW FACW

Eupatorium purpureum var. purpureum L. FAC FAC FAC FAC FAC NI FAC

Eupatorium pycnocephalum Less. FAC* FAC*

Eupatorium resinosum Torr. ex DC. OBL OBL OBL

Eupatorium rotundifolium L. FAC- FAC NI FAC FAC-,FAC

Eupatorium semiserratum DC. FACW FACW- FACW FAC FAC,FACW

Eupatorium serotinum Michx. FAC- FAC FAC+ FAC FAC- FAC-,FAC+

Euphorbia commutata Engelm. FACU FACU UPL NI FACU* NI UPL,FACU

Euphorbia curtisii Engelm. FAC FAC

Euphorbia gaudichaudii Boiss. FAC FAC

Euphorbia heterophylla L. FACU- FAC FACU FACU FACU FACU* UPL NI FAC NI UPL,FAC

Euphorbia inundata Torr. ex Chapman FACW FACW

Euphorbia marginata Pursh UPL UPL FACU- FACU FACU FACU- FACU- UPL NI NI UPL,FACU

Euphorbia purpurea (Raf.) Fern. FAC FACW FAC,FACW

Euphorbia spathulata Lam. FACU- FAC FACU* NI FACU FAC* NI NI NI NI FACU-,FAC

Euphrasia frigida Pugsley NI FACW+ NI NI FACW+

Euphrasia randii B.L. Robins. FACW FACW

Eurya sandwicensis Gray FACU FACU

Eustachys glauca Chapman FACW FACW

Eustachys neglecta (Nash) Nash FACU FACU

Eustachys petraea (Sw.) Desv. NI FACU- FAC- FACU NI FACU-,FAC-

Eustoma exaltatum (L.) Salisb. ex G. Don FACW+ FACW OBL* OBL* FACW FACW,OBL*

Eustoma russellianum (Hook.) G. Don NI FACW FACW FAC- FAC* NI NI FAC-,FACW

Euthamia graminifolia (L.) Nutt. FAC FACW- FACW- FACW FACW FACW NI NI FAC FAC,FACW

Euthamia graminifolia var. nuttallii (Greene) W. Stone FACU+ FAC FAC NI FACU+,FAC



North Central

North Plains

Central Plains




Euthamia gymnospermoides Greene FAC FAC FACW FACW FACW FAC+ FAC,FACW

Euthamia leptocephala (Torr. & Gray) Greene NI FACW- FACW FAC+ FAC+,FACW

Euthamia occidentalis Nutt. OBL OBL FACW* OBL FACW* OBL FACW*,OBL

Euthamia tenuifolia var. pycnocephala (Fern.) C.& J. Taylor FAC FAC

Euthamia tenuifolia var. tenuifolia (Pursh) Nutt. FACU FAC FAC+ FACU,FAC+

Eutrema edwardsii R. Br. FAC FAC

Eutrema penlandii Rollins OBL OBL

Evolvulus grisebachii Peter FAC NI FAC

Evolvulus sericeus Sw. FACW UPL* UPL* UPL UPL*,FACW

Evonymus americana L. FAC FAC- FAC- FACW FAC-,FACW

Evonymus atropurpurea Jacq. FACU FAC FAC- FACU FAC FAC+ NI FACU,FAC+

Evonymus obovata Nutt. FAC* FACU* NI FACU*,FAC*

Evonymus occidentalis Nutt. ex Torr. NI NI

Excoecaria agallocha L. FACW+ FACW+

Exocarpos luteolus Forbes FACU FACU

Exothea paniculata (Juss.) Radlk. ex Dur. FACU* UPL UPL,FACU*

Fadyenia hookeri (Sweet) Maxon OBL OBL

Fagus grandifolia Ehrh. FACU FACU FACU FACU NI FACU

Faradaya powellii Seem. FACU* FACU*

Faramea occidentalis (L.) A. Rich. FACU FACU

Fauria crista-galli (Menzies ex Hook.) Makino OBL FACW FACW,OBL

Ferocactus viridescens (Torr. & Gray) Britt. & Rose FACU* FACU*

Festuca altaica Trin. FACU FAC FACU,FAC

Festuca arundinacea Schreb. FACU FAC- FACU+ FAC FACU FAC- NA* FACW- FAC- FAC- UPL NI UPL,FACW-

Festuca californica Vasey FACU FACU* FACU*,FACU

Festuca idahoensis Elmer NI NI NI NI FACU* UPL UPL,FACU*

Festuca lenensis Drobov NI

Festuca ovina L. NI UPL NI NI NI NI NI NI FACU* UPL,FACU*

Festuca paradoxa Desv. FAC FAC- FAC FACU FAC- FACU,FAC

Festuca pratensis Huds. FACU- FACU FACU- FAC FAC FACU* FACU* FACU FACU+ FACU* NI FACU-,FAC

Festuca rubra L. FACU FACU+ FAC- NI FAC FAC* FACW- FAC FAC+ FAC FAC NI FACU,FACW-

Festuca subulata Trin. UPL FACU FACU+ FACU* FACU* UPL,FACU+

Festuca subverticillata (Pers.) Alexeev FACU FACU FACU+ FACU FAC FAC- FACU,FAC

Ficus aurea Nutt. FACW FACW

Ficus citrifolia P. Mill. FAC FACU FACU,FAC

Ficus godeffroyi Warb. FACU FACU



North Central

North Plains

Central Plains




Ficus prolixa G. Forst. FAC FAC

Ficus tinctoria G. Forst. FAC FAC

Ficus trigonata L. FAC FAC

Filago depressa Gray NI NI UPL UPL

Filipendula occidentalis (S. Wats.) T.J. Howell NI

Filipendula rubra (Hill) B.L. Robins. FACW OBL FACW+ NI FACW,OBL

Fimbristylis aestivalis (Retz.) Vahl FACW+ FACW+

Fimbristylis annua (All.) Roemer & J.A. Schultes FACW- FACW FACW- FACW- FACW- FAC FAC,FACW

Fimbristylis autumnalis (L.) Roemer & J.A. Schultes FACW+ OBL FACW+ OBL OBL OBL NI FACW+,OBL

Fimbristylis caroliniana (Lam.) Fern. FACW+ FACW+ FACU FACW- FACW+ FACU,FACW+

Fimbristylis castanea (Michx.) Vahl OBL OBL OBL OBL

Fimbristylis complanata (Retz.) Link FACW FACW

Fimbristylis cymosa R. Br. FACW+ FACU FACU,FACW+

Fimbristylis decipiens Kral FACW FAC FAC,FACW

Fimbristylis dichotoma (L.) Vahl OBL FACW+ FACW FAC+ FAC+,OBL

Fimbristylis ferruginea (L.) Vahl OBL OBL

Fimbristylis globulosa (Retz.) Kunth OBL OBL

Fimbristylis littoralis Gaud. FACW FACW

Fimbristylis miliacea (L.) Vahl NI OBL NI OBL FACW FACW,OBL

Fimbristylis pauciflora R. Br. OBL OBL

Fimbristylis perpusilla Harper ex Small & Britt. NI OBL OBL

Fimbristylis puberula (Michx.) Vahl OBL OBL OBL OBL FACW* FACW* NI NI FACW*,OBL

Fimbristylis schoenoides (Retz.) Vahl FACW FACW FACW

Fimbristylis spathacea Roth FACW+ FACW FACU FACU,FACW+

Fimbristylis thermalis S. Wats. FACW+ OBL OBL FACW FACW,OBL

Fimbristylis tomentosa Vahl FACW FACW+ FACW,FACW+

Fimbristylis tristachya R. Br. FAC* FAC*

Fimbristylis vahlii (Lam.) Link NI OBL OBL FACW FACW* FACW+ FACW* FACW*,OBL

Flaveria brownii A. Powell FACW FACW

Flaveria campestris J.R. Johnston FAC FACW FAC+ FAC FACW FAC,FACW

Flaveria chlorifolia Gray FACW FACW* FACW*,FACW

Flaveria floridana J.R. Johnston FACW FACW

Flaveria linearis Lag. FACW FACW

Flaveria trinervia (Spreng.) C. Mohr NI NI NI NI NI NI FAC NI FAC

Flemingia strobilifera (L.) Ait. & Ait. f. NI FAC FAC

Floerkea proserpinacoides Willd. FAC FACW- FAC+ FACW OBL FACW* OBL* FAC,OBL



North Central

North Plains

Central Plains




Foeniculum vulgare P. Mill. UPL FAC- FACU* FACU FAC FACU FACU FACU FACU- UPL UPL UPL,FAC

Forestiera acuminata (Michx.) Poir. OBL OBL OBL OBL OBL OBL

Forestiera ligustrina (Michx.) Poir. NI FAC FAC* FAC*,FAC

Forestiera pubescens Nutt. FACU FACU FACU NI FACU

Forestiera pubescens var. pubescens Nutt. FAC- FACU FAC+ FAC FACU,FAC+

Forsteronia corymbosa (Jacq.) G.F.W. Mey. FAC FAC

Fothergilla gardenii L. FACW FACW FACW

Fragaria vesca L. NI NI NI NI NI NI NI NI NI UPL NI UPL

Fragaria virginiana Duchesne FACU FAC- FAC- FACU FACU FAC FAC FACU FACU FAC UPL* UPL*,FAC

Fragraea berteriana Gray FACU FACU

Frangula alnus P. Mill. FAC NI FAC+ NI NI NI FAC,FAC+

Frangula betulifolia ssp. betulifolia (Greene) V. Grub. FACU+ FACW- FAC FACU+,FACW-

Frangula caroliniana (Walt.) Gray FAC FACU FAC- FAC FACU- FACU-,FAC

Frangula purshiana (DC.) Cooper NI FAC- FACU* FACU*,FAC-

Frangula sphaerosperma (Sw.) Kartesz & Gandhi FAC FAC

Frankenia palmeri S. Wats. OBL OBL

Frankenia salina (Molina) I.M. Johnston FACW+ FAC FAC,FACW+

Frasera fastigiata (Pursh) Heller NI UPL UPL

Frasera speciosa Dougl. ex Griseb. NI FACU- NI UPL UPL UPL UPL NI UPL,FACU-

Fraxinus americana L. FACU FACU FACU NI FACU FACU NI NI FACU

Fraxinus berlandieriana DC. FAC NI FAC

Fraxinus caroliniana P. Mill. OBL OBL OBL OBL

Fraxinus latifolia Benth. FACW FACW FACW

Fraxinus nigra Marsh. FACW FACW+ FACW FACW,FACW+

Fraxinus pennsylvanica Marsh. FACW FACW FACW FAC FACW FACW- FACW* FAC FAC,FACW

Fraxinus profunda (Bush) Bush OBL OBL OBL OBL

Fraxinus velutina Torr. FAC FAC+ FAC FACW FAC,FACW

Freycinetia arborea Gaud. FACU FACU

Freycinetia mariannensis Merr. FAC FAC

Freycinetia ponapensis Mart. FAC FAC

Freycinetia storckii Seem. FACU FACU

Fritillaria agrestis Greene FAC* FAC*

Fritillaria camschatcensis (L.) Ker-Gawl. FACW FAC FAC,FACW

Fuirena breviseta (Coville) Coville OBL OBL NI OBL

Fuirena longa Chapman OBL NI OBL

Fuirena pumila (Torr.) Spreng. OBL OBL OBL NI OBL



North Central

North Plains

Central Plains




Fuirena scirpoidea Michx. OBL OBL OBL

Fuirena simplex Vahl NI OBL OBL OBL OBL OBL NI OBL

Fuirena squarrosa Michx. OBL OBL OBL NI OBL

Fuirena umbellata Rottb. OBL OBL OBL

Gaillardia flava Rydb. FACU* FACU*

Galactia elliottii Nutt. FACU FACU

Galactia mollis Michx. FAC* FAC*

Galactia striata (Jacq.) Urban NI UPL UPL

Galactia volubilis (L.) Britt. FAC+ FACU NI NI FACU FACU,FAC+

Galax urceolata (Poir.) Brummitt NI FACU* FACU*

Galeopsis tetrahit L. NI FACU* NI NI NI NI FACU*

Galium aparine L. FACU FACU FACU FACU FACU FAC- FACU FACU FACU FACU FACU FACU,FAC-

Galium asprellum Michx. OBL FACW+ OBL NI FACW+,OBL

Galium boreale L. FACU NI FAC FACU FAC FAC* FAC- FACU FACU FACU FACU FACU,FAC

Galium brevipes Fern. & Wieg. OBL OBL NI OBL

Galium circaezans Michx. UPL FACU- FACU- UPL FACU* UPL,FACU*

Galium concinnum Torr. & Gray UPL UPL FACU FACU FACU* NI UPL,FACU

Galium divaricatum Poir. NI NI NI FAC FAC

Galium labradoricum (Wieg.) Wieg. OBL OBL OBL OBL

Galium mexicanum Kunth NI FAC FAC FAC FAC NI* FAC

Galium microphyllum Gray FAC- FAC* FAC-,FAC*

Galium obtusum Bigelow FACW+ FACW- FACW+ OBL FACW OBL FACW* FACW-,OBL

Galium palustre L. OBL OBL NI NI NI OBL

Galium parisiense L. FACU FACU FACU UPL FACU UPL,FACU

Galium serpenticum ssp. warnerense Dempster & Ehrend. NI UPL UPL

Galium tinctorium (L.) Scop. OBL FACW OBL FACW OBL NI FACW,OBL

Galium trifidum L. FACW+ OBL* FACW+ OBL OBL FACW+ FACW OBL FACW+ OBL FACW FACW,OBL

Galium trifidum ssp. columbianum (Rydb.) Hultén NI NI FACW FACW FACW FACW

Galium trifidum ssp. subbiflorum (Wieg.) Piper NI FACW* NI NI NI FACW*

Galium triflorum Michx. FACU FACU FACU+ FACU FACU FACU FACU+ FACU FACU FACU FACU FACU,FACU+

Galium uncinulatum DC. FAC FAC

Galium uniflorum Michx. NI FACU* NI FACU*

Gamochaeta pensylvanica (Willd.) Cabrera UPL* FACU- UPL* NI UPL*,FACU-

Gamochaeta purpurea (L.) Cabrera UPL UPL FACU UPL FACU* FACU* NI FACU* NI UPL UPL,FACU

Garcinia myrtifolia A.C. Sm. FACU FACU

Garcinia portoricensis (Urban) Alain FAC FAC



North Central

North Plains

Central Plains




Garnotia stricta Brongn. FAC FAC

Gastridium ventricosum (Gouan) Schinz & Thellung FACU NI FACU FACU FACU FACU NI FACU

Gaultheria hispidula (L.) Muhl. ex Bigelow FACW FACW FACW FACW

Gaultheria humifusa (Graham) Rydb. NI NI FACU* FACU FACW* FACW* FACU*,FACW*

Gaultheria ovatifolia Gray FAC FAC+ FAC,FAC+

Gaultheria procumbens L. FACU FACU FACU FACU

Gaultheria shallon Pursh FACU* FACU FACU FACU*,FACU

Gaura biennis L. FACU FACU FACU- FACU-,FACU

Gaura neomexicana Woot. FAC OBL OBL FACW NI FAC,OBL

Gaura parviflora Dougl. ex Lehm. NI UPL UPL* UPL UPL UPL UPL FACU NI NI UPL*,FACU

Gaylussacia baccata (Wangenh.) K. Koch FACU FACU FACU FACU

Gaylussacia dumosa (Andr.) Torr. & Gray FAC FAC FAC

Gaylussacia frondosa (L.) Torr. & Gray ex Torr. FAC FAC FAC

Gaylussacia mosieri Small FACW FACW

Gayophytum humile Juss. NI NI NI FAC* FAC*

Gayophytum racemosum Torr. & Gray NI NI NI NI NI FAC* FAC*

Gelsemium rankinii Small FACW+ FACW+

Gelsemium sempervirens St.-Hil. FAC FAC FAC FAC

Gentiana affinis Griseb. NI FACU NI FACU FACU FACU FACU+ FACU FACU,FACU+

Gentiana alba Muhl. ex Nutt. FACU FACU FACU FAC NI FACU,FAC

Gentiana algida Pallas NI NI FACW* FAC FACW FAC FAC,FACW

Gentiana andrewsii Griseb. FACW FACW+ FACW FAC FACW NI FAC,FACW+

Gentiana autumnalis L. FACW FACW+ FACW,FACW+

Gentiana calycosa Griseb. NI NI NI FACW FACW- FACW FACW-,FACW

Gentiana catesbaei Walt. OBL OBL OBL

Gentiana clausa Raf. FACW FAC FACW+ FAC,FACW+

Gentiana douglasiana Bong. OBL FACW FACW,OBL

Gentiana fremontii Torr. NI NI OBL OBL FACW+ OBL FACW+,OBL

Gentiana glauca Pallas FAC FAC FAC

Gentiana linearis Froel. OBL OBL FACW* FACW*,OBL

Gentiana newberryi Gray NI NI FACW FACW

Gentiana parryi Engelm. NI FACW FAC FAC FAC,FACW

Gentiana pennelliana Fern. FACW FACW

Gentiana prostrata Haenke NI NI NI NI OBL FACW NI* FACW FACW,OBL

Gentiana rubricaulis Schwein. OBL OBL NI OBL

Gentiana saponaria L. FACW FACW- FACW- FACW- FACW-,FACW



North Central

North Plains

Central Plains




Gentiana sceptrum Griseb. OBL OBL OBL

Gentiana setigera Gray OBL OBL OBL

Gentianella amarella (L.) Boerner FAC OBL FACW OBL FACW FAC FACW- FACW FACW FAC,OBL

Gentianella propinqua (Richards.) J. Gillett FACW FACU FACU,FACW

Gentianella quinquefolia (L.) Small FAC FACW- FAC FAC,FACW-

Gentianella tenella (Rottb.) Boerner NI FAC+ FAC+ FACW- FACW* FACW FAC+,FACW

Gentianopsis barbellata (Engelm.) Iltis NI FAC FACU FACW FACU,FACW

Gentianopsis crinita (Froel.) Ma OBL FACW+ FACW+ OBL NI FACW+,OBL

Gentianopsis detonsa (Rottb.) Ma NI OBL FACW FACW,OBL

Gentianopsis holopetala (Gray) Iltis OBL NI OBL* OBL*,OBL

Gentianopsis procera (Holm) Ma FACW+ OBL OBL NI FACW+,OBL

Gentianopsis simplex (Gray) Iltis NI OBL FACW OBL FACW,OBL

Gentianopsis thermalis (Kuntze) Iltis NI OBL* OBL FACW FACW,OBL

Geocaulon lividum (Richards.) Fern. FAC FACW- NI FAC+ FACU FACU,FACW-

Geophila repens (L.) I.M. Johnston FAC FAC

Geranium caespitosum var. eremophilum (Woot. & Standl.) W.C. Martin FACW FACW

Geranium californicum G.N. & F.F. Jones FAC* FAC*

Geranium hanaense Medeiros & St. John OBL OBL

Geranium humile Hbd. OBL* OBL*

Geranium kauaiense (Rock) St. John FACW FACW

Geranium maculatum L. FACU FACU FACU FACU FACU FACU FACU

Geranium multiflorum Gray FAC FAC

Geranium pratense L. UPL NI UPL

Geranium richardsonii Fisch. & Trautv. FAC NI FAC FACU FAC- FACW FACU,FACW

Geranium viscosissimum Fisch. & C.A. Mey. ex C.A. Mey. FAC FAC FACU* FACU* FACU+ FAC FACU*,FAC

Gesneria cuneifolia (DC.) Fritsch FAC FAC

Gesneria pauciflora Urban OBL OBL

Gesneria reticulata (Griseb.) Urban FACW FACW

Gesneria viridiflora ssp. sintenisii (Urban) L. Skog OBL OBL

Geum aleppicum Jacq. FAC FACW+ FAC+ FACU FACU FAC- FACU FACW- NI FACU* FACU*,FACW+

Geum calthifolium Menzies ex Sm. FACW FACW

Geum canadense Jacq. FACU+ FAC FAC FACU FACU FAC NI FACU,FAC

Geum laciniatum Murr. FAC+ FACW FACW FACW NI FAC+,FACW

Geum macrophyllum Willd. FACW FACW+ FACW OBL FACW OBL FAC+ FACW FAC FAC,OBL

Geum peckii Pursh OBL OBL

Geum pentapetalum (L.) Makino FACW* FACW*



North Central

North Plains

Central Plains




Geum rivale L. OBL OBL FACW NI FAC FACW FACW NI FAC,OBL

Geum rossii (R. Br.) Ser. NI FACU UPL FACU FACU UPL,FACU

Geum triflorum Pursh UPL FACU- FACU NI FAC UPL FACU FACU* UPL,FAC

Geum vernum (Raf.) Torr. & Gray FACU FAC FAC- FACU- FACU* FACU-,FAC

Geum virginianum L. FAC- FACW- FACU- FACU-,FACW-

Gibasis geniculata (Jacq.) Rohw. FAC FAC

Gilia capillaris Kellogg NI NI FAC FAC

Gilia mcvickerae M.E. Jones NI NI UPL NI UPL

Gilia pinnatifida Nutt. ex Gray NI FAC- FAC- NI NI FAC-

Gilia tenerrima Gray NI NI NI UPL UPL

Ginoria rohrii (Vahl) Koehne FACW FACW

Githopsis specularioides Nutt. NI NI

Glandularia tampensis (Nash) Small FACW FACW

Glaux maritima L. OBL OBL* OBL OBL NI OBL FACW+ OBL OBL FACW+,OBL

Glechoma hederacea L. FACU FACU FACU FACU FACU FACU* UPL FACU+ FACU UPL* UPL*,FACU+

Gleditsia aquatica Marsh. OBL OBL OBL OBL OBL

Gleditsia triacanthos L. FAC- FAC FAC FACU FAC FAC FAC FAC FAC- FACU,FAC

Glehnia littoralis ssp. leiocarpa (Mathias) Hultén NI UPL NI UPL

Glinus lotoides L. FACW OBL FACW- FACW- OBL FACW-,OBL

Glinus radiatus (Ruiz & Pavón) Rohrb. FACW FACW- NI NI FACW-,FACW

Glochidion ponapense Hosokawa FACU FACU

Glottidium vesicarium (Jacq.) Harper FAC+ FAC+ FAC+

Glyceria acutiflora Torr. OBL OBL OBL OBL

Glyceria borealis (Nash) Batchelder OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL

Glyceria canadensis (Michx.) Trin. OBL OBL OBL OBL

Glyceria elata (Nash ex Rydb.) M.E. Jones NI NI OBL OBL FACW+ OBL FACW+,OBL

Glyceria fluitans (L.) R. Br. OBL OBL OBL OBL NI FAC FAC,OBL

Glyceria grandis S. Wats. NI OBL NI OBL OBL OBL OBL OBL OBL OBL OBL

Glyceria leptostachya Buckl. OBL OBL OBL OBL

Glyceria maxima (Hartman) Holmb. OBL OBL OBL

Glyceria melicaria (Michx.) F.T. Hubbard OBL OBL OBL

Glyceria nubigena W.A. Anderson OBL OBL

Glyceria obtusa (Muhl.) Trin. OBL OBL OBL

Glyceria occidentalis (Piper) J.C. Nels. OBL OBL OBL OBL

Glyceria pulchella (Nash) K. Schum. OBL OBL

Glyceria septentrionalis A.S. Hitchc. OBL OBL OBL OBL OBL



North Central

North Plains

Central Plains




Glyceria striata (Lam.) A.S. Hitchc. OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL

Glycyrrhiza lepidota Pursh UPL FACU FACU- FACU FACU FAC+ FAC+ FAC-* FAC+ FAC+ UPL,FAC+

Gnaphalium canescens DC. NI UPL UPL FACU FACU* UPL,FACU

Gnaphalium grayi A. Nels. & J.F. Macbr. NI FAC FACW FAC,FACW

Gnaphalium luteoalbum L. NI NI FAC FACW NI FACW- FAC,FACW

Gnaphalium palustre Nutt. OBL OBL FACW FACW FAC+ FACW FAC+,OBL

Gnaphalium polycaulon Pers. FAC FAC

Gnaphalium stramineum Kunth FAC FAC- FAC NI FAC FAC FAC FAC+ FAC- FAC-,FAC+

Gnaphalium uliginosum L. FAC FAC FAC FACW FACW FAC+ UPL UPL,FACW

Gomidesia lindeniana Berg FACW FACW

Gonocalyx portoricensis (Urban) A.C. Sm. OBL OBL

Gonocarpus chinensis ssp. verrucosus (Maiden & Betche) Orchard FAC FAC

Gonolobus stephanotrichus Griseb. FACW FACW

Gonzalagunia hirsuta (Jacq.) K. Schum. FACU FACU

Goodmania luteola (Parry) Reveal & Ertter NI FACW* FACW*

Goodyera oblongifolia Raf. FACU- UPL FACU NI FACU* UPL FACU- UPL UPL* UPL*,FACU

Goodyera pubescens (Willd.) R. Br. ex Ait. f. FACU- UPL FAC* NI UPL,FAC*

Goodyera repens (L.) R. Br. ex Ait. f. FACU+ UPL FACU FAC- NI FACU* UPL FACU- FAC UPL,FAC

Goodyera tesselata Lodd. FACU- FACU FACU-,FACU

Gordonia lasianthus (L.) Ellis NI FACW FACW

Gossypium barbadense L. FACU NI FACU

Gossypium hirsutum L. NI FACU* NI NI NI NI FACU*

Gouania lupuloides (L.) Urban FAC UPL UPL,FAC

Govenia utriculata (Sw.) Lindl. NI FACW FACW

Grammitis nimbata (Jenman) Proctor OBL OBL

Gratiola aurea Pursh OBL OBL OBL OBL OBL

Gratiola brevifolia Raf. FACW+ FACW+ FACW+

Gratiola ebracteata Benth. ex A. DC. NI OBL OBL OBL

Gratiola flava Leavenworth FACW FAC* FAC*,FACW

Gratiola floridana Nutt. OBL OBL

Gratiola heterosepala Mason & Bacig. NI OBL OBL

Gratiola hispida (Benth. ex Lindl.) Pollard FAC FAC

Gratiola neglecta Torr. OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL

Gratiola pilosa Michx. FACU FACW- FACW+ FACU,FACW+

Gratiola ramosa Walt. FACW FACW FACW

Gratiola virginiana L. OBL OBL OBL OBL OBL OBL



North Central

North Plains

Central Plains




Gratiola viscidula Pennell OBL OBL OBL OBL

Grindelia camporum Greene NI NI FACU FACU

Grindelia camporum var. camporum Greene NI NI FAC- FAC-

Grindelia fraxinopratensis Reveal & Beatley FACW+ FACW* FACW*,FACW+

Grindelia hirsutula var. hirsutula Hook. & Arn. FACW FACW

Grindelia integrifolia DC. FACW FACW NI FACW

Grindelia integrifolia var. macrophylla (Greene) Cronq. NI FACW* NI FACW*

Grindelia latifolia Kellogg FACW FACW

Grindelia nana Nutt. FACU FACU+ FACU* FACU*,FACU+

Grindelia paludosa Greene OBL OBL

Grindelia squarrosa (Pursh) Dunal FACU FACU FACU UPL FACU- FACU- FACU UPL FACU FACU UPL,FACU

Grindelia stricta var. angustifolia (Gray) M.A. Lane OBL OBL

Guapira discolor (Spreng.) Little FAC* NI FAC*

Guarea guidonia (L.) Sleumer FAC FAC

Guatteria blainii (Griseb.) Urban FACU FACU

Guatteria caribaea Urban FAC FAC

Guettarda elliptica Sw. FACU* NI FACU*

Guettarda scabra (L.) Vent. FAC* FAC FAC*,FAC

Guettarda valenzuelana A. Rich. FACW FACW

Gundlachia corymbosa (Urban) Britt. ex Boldingh FAC FAC

Gunnera kauaiensis Rock FACW FACW

Gunnera petaloidea Gaud. FACW+ FACW+

Gymnocarpium dryopteris (L.) Newman UPL FAC FACU NI FAC FACU FAC* FACU UPL,FAC

Gymnocarpium robertianum (Hoffmann) Newman FACU FACU

Gymnopogon brevifolius Trin. FACU FACU FACU* FACU*,FACU

Gymnopogon chapmanianus A.S. Hitchc. FACU- FACU-

Gymnosiphon niveus (Griseb.) Urban FAC FAC

Gymnosiphon sphaerocarpus Urban FAC FAC

Gymnosteris parvula Heller NI NI NI NI FAC* FAC*

Gynerium sagittatum (Aubl.) Beauv. NI OBL OBL

Gynotroches axillaris Bl. FACU FACU

Habenaria distans Griseb. FACW FAC FAC,FACW

Habenaria dussii Cogn. OBL OBL

Habenaria eustachya Reichenb. f. FAC FAC

Habenaria monorrhiza (Sw.) Reichenb. f. FACW FACW

Habenaria odontopetala Reichenb. f. FACW UPL UPL,FACW



North Central

North Plains

Central Plains




Habenaria quinqueseta (Michx.) Eat. FACW FACW+ FACW,FACW+

Habenaria repens Nutt. NI OBL OBL OBL OBL

Habranthus tubispathus (L'Hér.) Traub NI FACW* FACW*

Hackelia floribunda (Lehm.) I.M. Johnston FACU* FACU FAC FAC FACU+ FACU FACU- FAC FACU-,FAC

Hackelia micrantha (Eastw.) J.L. Gentry NI NI NI FACU* NI FACU*

Hackelia virginiana (L.) I.M. Johnston FACU FAC FAC- FACU FACU FAC+ FACU,FAC+

Hackelochloa granularis (L.) Kuntze NI NI NI NI FAC NI FAC

Haematoxylum campechianum L. FAC NI FAC

Haenianthus salicifolius var. obovatus (Krug & Urban) Knobl. FACW FACW

Hainardia cylindrica (Willd.) W. Greuter UPL NI FACW+ UPL,FACW+

Halenia deflexa (Sm.) Griseb. FAC FAC FACW NI FAC,FACW

Halenia recurva (Sm.) Allen FAC FAC

Halesia carolina L. FAC- FAC-

Halesia diptera Ellis FAC FAC+ FAC,FAC+

Halesia tetraptera Ellis FACU NI FACU+ NI FACU,FACU+

Halimolobos virgata (Nutt.) O.E. Schulz NI NI NI NI UPL UPL

Halodule beaudettei (den Hartog) den Hartog OBL OBL OBL OBL OBL

Halodule uninervis (Forsk.) Aschers. OBL OBL

Halophila baillonis Aschers. ex Dickie OBL OBL OBL

Halophila decipiens var. pubescens den Hartog OBL OBL OBL

Halophila engelmannii Aschers. OBL OBL OBL

Halophila hawaiiana Doty & B.C. Stone OBL OBL

Halophila johnsonii Eiseman OBL OBL

Halophila minor (Zoll.) den Hartog OBL OBL

Halophila ovalis (R. Br.) Hook. OBL OBL

Halophila ovata Gaud. NI

Hamamelis vernalis Sarg. FACU FACW FAC FACU,FACW

Hamamelis virginiana L. FACU+ FACU FACU FAC- FACU,FAC-

Hamelia axillaris Sw. FAC FAC

Hamelia patens Jacq. NI FAC FAC

Hanguana malayana (Jack) Merr. OBL OBL

Harperocallis flava McDaniel OBL OBL

Harrimanella stelleriana (Pallas) Coville FACU FACW FACU,FACW

Harrisia aboriginum Small FACU* FACU*

Harrisia simpsonii Small FACU* FACU*

Hartwrightia floridana Gray ex S. Wats. OBL OBL



North Central

North Plains

Central Plains




Hastingsia alba (Dur.) S. Wats. OBL OBL OBL

Hastingsia bracteosa S. Wats. OBL OBL

Hedychium coronarium Koenig OBL OBL FAC FAC,OBL

Hedychium flavescens Carey ex Roscoe FAC- FAC-

Hedyosmum arborescens Sw. FACW FACW

Hedyotis centranthoides (Hook. & Arn.) Steud. FAC FAC

Hedyotis elatior (Mann) Fosberg FACW+ FACW+

Hedyotis formosa (Hbd.) Fosberg FACW* FACW*

Hedyotis fosbergii W.L. Wagner & Herbst FAC FAC

Hedyotis littoralis (Hbd.) Fosberg FACW FACW

Hedyotis ponapensis (Val.) Kanehira FACW FACW

Hedyotis schlechtendahliana Steud. FAC FAC

Hedyotis terminalis (Hook. & Arn.) W.L. Wagner & Herbst FAC FAC

Hedysarum alpinum L. FAC- NI FACU FACU FACU FACU,FAC-

Heimia salicifolia (Kunth) Link FACW+ FACW+

Helenium amarum (Raf.) H. Rock FACU- FACU- FACU FACU- FACU* NI* FACU-,FACU

Helenium arizonicum Blake FACW FACW

Helenium autumnale L. FACW+ FACW FACW+ FACW FACW FACW- FACW* FACW+ FACW OBL FACW-,OBL

Helenium bigelovii Gray NI FACW+ OBL FACW+,OBL

Helenium bolanderi Gray FACW OBL FACW,OBL

Helenium brevifolium (Nutt.) Wood OBL OBL OBL

Helenium campestre Small FAC NI NI FAC

Helenium drummondii H. Rock OBL FACW- FACW-,OBL

Helenium flexuosum Raf. FAC- FACW FAC+ FACW FACW FAC-,FACW

Helenium microcephalum DC. NI FACW- FACW* NI FACW-,FACW*

Helenium pinnatifidum (Nutt.) Rydb. OBL OBL

Helenium puberulum DC. FACW FACW FACW

Helenium thurberi Gray OBL* OBL*

Helenium vernale Walt. FACW+ FACW+

Helianthella quinquenervis (Hook.) Gray FACW NI FAC- UPL FACU UPL,FACW

Helianthus agrestis Pollard FACW+ FACW+

Helianthus angustifolius L. FACW FAC+ FACW- FAC FAC,FACW

Helianthus annuus L. FAC- FAC- FAC- FACU FACU FAC FAC- FACU FACU+ FAC- FAC UPL NI UPL,FAC

Helianthus bolanderi Gray NI FAC FAC

Helianthus californicus DC. OBL OBL

Helianthus carnosus Small FACW+ FACW+



North Central

North Plains

Central Plains




Helianthus ciliaris DC. FAC FAC FAC FAC UPL NI* UPL,FAC

Helianthus debilis Nutt. UPL FAC NI FAC- UPL,FAC

Helianthus decapetalus L. FACU UPL* UPL* NI NI UPL*,FACU

Helianthus floridanus Gray ex Chapman FACW FACW

Helianthus giganteus L. FACW FACW FACW NI NI FACW

Helianthus grosseserratus Martens FACW FAC+ FACW- FACW FACW FAC FAC* NI FAC*,FACW

Helianthus heterophyllus Nutt. OBL OBL

Helianthus longifolius Pursh FAC FAC

Helianthus maximiliani Schrad. UPL UPL UPL FACU UPL FACU- NI FACU UPL NI* UPL,FACU

Helianthus microcephalus Torr. & Gray NI UPL FACU-* UPL,FACU-*

Helianthus nuttallii Torr. & Gray FACW* FACW FAC FACW* FACW FACW FACW- FACW FAC,FACW

Helianthus occidentalis Riddell UPL FACU FACU- UPL FACU UPL,FACU

Helianthus paradoxus Heiser NI FACW NI FACW

Helianthus radula (Pursh) Torr. & Gray FACW- FACW-

Helianthus simulans E.E. Wats. FACW FACW FACW

Helianthus tuberosus L. FAC FAC FAC FACU FAC FAC NI FAC FACU,FAC

Helianthus X verticillatus E.E. Wats. (pro sp.) OBL OBL

Heliconia caribaea Lam. OBL OBL

Heliopsis helianthoides (L.) Sweet NI UPL FACU- NI NI NI NI NI NI UPL,FACU-

Heliotropium angiospermum Murr. FACU UPL UPL UPL,FACU

Heliotropium curassavicum L. OBL OBL OBL OBL OBL FACW FACW* OBL OBL OBL FACW FAC FAC,OBL

Heliotropium glabriusculum (Torr.) Gray FACW FACW

Heliotropium greggii Torr. FACW FAC* FAC*,FACW

Heliotropium indicum L. FAC+ FAC+ FACW FACW FACW FAC+ FAC FAC,FACW

Heliotropium lagoense (Warm.) Guerke FACW FACW

Heliotropium molle (Torr.) I.M. Johnston FACW FACW

Heliotropium polyphyllum Lehm. FAC FAC

Heliotropium procumbens P. Mill. NI FACW FACW- NI NI FAC NI FAC,FACW

Helonias bullata L. OBL OBL OBL

Hemarthria altissima (Poir.) Stapf & C.E. Hubbard NI NI FACW FACW

Hemerocallis fulva (L.) L. UPL UPL UPL FACU FACU NI FACU NI UPL,FACU

Hemidictyum marginatum (L.) K. Presl OBL OBL

Hemizonia fitchii Gray NI FACU FACU

Hemizonia paniculata Gray FACU* FACU*

Hemizonia parryi Greene FAC FAC

Hemizonia pungens (Hook. & Arn.) Torr. & Gray NI FACW+ FAC UPL FAC UPL,FACW+



North Central

North Plains

Central Plains




Henriettea fascicularis (Sw.) G. Maza FAC FAC

Henriettea macfadyenii (Triana) Alain FACW FACW

Henriettea membranifolia (Cogn.) Alain FACW FACW

Henriettea squamulosum (Cogn.) Judd FACW FACW

Henriettea triflora (Vahl) Alain FACW FACW

Heracleum maximum Bartr. FACU- FAC FACW FAC FACW OBL FACW- FAC+ FACU FACU FACU-,OBL

Heracleum sphondylium L. UPL NI NI UPL

Heritiera littoralis Dry. FACW FACW

Hernandia sonora L. FAC FAC

Hesperevax caulescens (Benth.) Gray OBL OBL

Hesperevax sparsiflora var. sparsiflora (Gray) Greene NI FACU FACU

Hesperis matronalis L. FACU- FACU* NI NI NI NI NI NI NI FACU-,FACU*

Hesperochiron californicus (Benth.) S. Wats. FAC+ FACU FACW FACU,FACW

Hesperochiron pumilus (Dougl. ex Griseb.) Porter NI FAC* FACW FAC FACW FAC*,FACW

Heteranthera dubia (Jacq.) MacM. OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL

Heteranthera limosa (Sw.) Willd. OBL OBL OBL OBL OBL OBL OBL NI NI OBL OBL

Heteranthera mexicana S. Wats. OBL OBL

Heteranthera reniformis Ruiz & Pavón OBL OBL OBL OBL OBL OBL

Heterocodon rariflorum Nutt. FAC FACW* FACW* FAC,FACW*

Heteropteris laurifolia (L.) A. Juss. FAC FAC

Heterotheca oregona (Nutt.) Shinners NI FACU* FACU*

Heterotheca subaxillaris (Lam.) Britt. & Rusby UPL FACU- UPL FACU UPL* UPL* UPL UPL UPL*,FACU

Heterotheca villosa var. shevockii Semple FACU* FACU*

Heterotrichum cymosum (Wendl. ex Spreng.) Urban FACW- FACW-

Heuchera americana L. FACU- FACU FACU- NI FACU FACU-,FACU

Heuchera chlorantha Piper NI

Heuchera richardsonii R. Br. FAC- FACU FAC FAC* FACU NI FACU,FAC

Heuchera rubescens Torr. FACU FACU UPL UPL FACU* UPL,FACU

Heuchera rubescens var. versicolor (Greene) M.G. Stewart NI FAC FACW* NI NI* FAC,FACW*

Hexalectris spicata (Walt.) Barnh. UPL FACU UPL FACU- UPL* UPL* UPL*,FACU

Hexastylis arifolia var. arifolia (Michx.) Small FACU FAC- FACU,FAC-

Hexastylis shuttleworthii var. shuttleworthii (Britten & Baker) Small NI FACU FACU

Hexastylis speciosa Harper FACW FACW

Hexastylis virginica (L.) Small FACU* FACU FACU*,FACU

Hibiscus aculeatus Walt. FACW FACW FACW

Hibiscus bifurcatus Cav. NI FACW FACW



North Central

North Plains

Central Plains




Hibiscus coccineus Walt. OBL OBL

Hibiscus dasycalyx Blake & Shiller OBL OBL

Hibiscus furcellatus Lam. FAC* FACW+ FAC* FAC*,FACW+

Hibiscus grandiflorus Michx. OBL OBL OBL

Hibiscus kokio ssp. kokio Hbd. ex Wawra FAC* FAC*

Hibiscus laevis All. OBL OBL OBL OBL OBL OBL

Hibiscus moscheutos L. OBL OBL OBL OBL OBL OBL NI OBL OBL

Hibiscus schizopetalus (Dyer) Hook. f. FACU- NI FACU-

Hibiscus striatus ssp. lambertianus (Kunth) Blanch. ex Proct. OBL OBL

Hibiscus tiliaceus L. FACW FACW FACW

Hibiscus trilobus Aubl. OBL OBL

Hieracium gracile Hook. NI NI NI NI FACU* NI NI NI FACU*

Hieracium greenii Porter & Britt. FACU UPL UPL,FACU

Hieracium gronovii L. UPL UPL UPL FACU FACU UPL,FACU

Hierochloe hirta (Schrank) Borbás NI NI FACW FACW

Hierochloe odorata (L.) Beauv. FACW NI FACW FACW NI FACW+ FACW FACW+ FACW FAC FAC,FACW+

Hierochloe pauciflora R. Br. FACW FACW

Hillebrandia sandwicensis D. Oliver FAC FAC

Hippobroma longiflora (L.) G. Don FACU FACU FACU

Hippocratea volubilis L. FACW FACW FACW

Hippomane mancinella L. FACW FAC FAC,FACW

Hippuris montana Ledeb. FACW+ OBL FACW+,OBL

Hippuris tetraphylla L. f. OBL OBL

Hippuris vulgaris L. OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL

Hirschfeldia incana (L.) Lagrèze-Fossat NI NI UPL UPL

Hirtella rugosa Thuill. ex Pers. OBL OBL

Hirtella triandra Sw. FACW- FACW-

Hoffmannseggia glauca (Ortega) Eifert FACU FAC FACU FACU- FACU FACU-,FAC

Hohenbergia antillana Mez FAC FAC

Hoita macrostachya (DC.) Rydb. OBL OBL

Hoita orbicularis (Lindl.) Rydb. OBL OBL

Holcus lanatus L. FACU FACU- FACU- NI FACW FAC FACW- FACU* FAC FAC FAC FACU FACU-,FACW

Holcus mollis L. NI FAC* FACU* FACU*,FAC*

Holodiscus discolor (Pursh) Maxim. NI NI NI NI NI NI FAC* FAC*

Holozonia filipes (Hook. & Arn.) Greene FACU FACU

Homalium racemosum Jacq. FACU FACU



North Central

North Plains

Central Plains




Honckenya peploides (L.) Ehrh. FACU NI FACU NI OBL FACU,OBL

Hordeum arizonicum Covas FAC FAC FAC

Hordeum brachyantherum Nevski FAC+ FACW- FACW- NI NI FAC* FACW- FACW-* FACW FACW FAC*,FACW

Hordeum californicum Covas & Stebbins FACU* FACU FACU*,FACU

Hordeum depressum (Scribn. & J.G. Sm.) Rydb. FACW* FACW FACW*,FACW

Hordeum intercedens Nevski FAC FAC

Hordeum jubatum L. FAC FAC FAC+ FACW FACW FAC+ FACW- FAC+ FAC- FAC+ FAC FAC-,FACW

Hordeum marinum Huds. NI NI NI NI NI NI NI FAC+ FAC+

Hordeum marinum ssp. gussonianum (Parl.) Thellung NI FACU- NI NI FAC FACU* FACU* FAC+ FACU-,FAC+

Hordeum murinum ssp. leporinum (Link) Arcang. NI UPL FACU* FACU* UPL NI UPL NI UPL,FACU*

Hordeum pusillum Nutt. FAC FACU FAC FACU FAC FACU FAC FAC+ FACU* FACU*,FAC+

Horkelia bolanderi Gray FAC* FAC*

Horkelia yadonii Ertter FACU FACU

Horsfieldia amklaal Kanehira FAC FAC

Horsfieldia nunu Kanehira FAC FAC

Horsfieldia palauensis Kanehira FAC FAC

Hottonia inflata Ell. OBL OBL OBL OBL OBL

Houstonia caerulea L. FACU FAC FAC FACU,FAC

Houstonia pusilla Schoepf NI FAC- FACU-* NI FACU UPL* NI UPL*,FAC-

Houstonia serpyllifolia Michx. FAC FACW FAC,FACW

Houstonia wrightii Gray NI FACU FACU FACU

Howellia aquatilis Gray NI OBL NI OBL

Humulus japonicus Sieb. & Zucc. FACU FAC- FACU FACU FACU,FAC-

Humulus lupulus L. FACU FACU* FACU* FACU FAC FACU* FACU* FACU* NI UPL* UPL*,FAC

Huperzia X erubescens (Brack.) Holub FACW FACW

Huperzia haleakalae (Brack.) Holub NI NI NI NI FACU* FACU*

Huperzia lucidula (Michx.) Trevisan FACW- FACW FAC+ NI FAC+,FACW

Huperzia porophila (Lloyd & Underwood) Holub FACU- UPL FACU- UPL,FACU-

Huperzia reflexa (Lam.) Trevisan FAC FAC

Huperzia selago var. selago (L.) Bernh. ex Mart. & Schrank FAC FACU- NI NI NI FACU-,FAC

Huperzia serrata var. serrata (Thunb. ex Murr.) Trevisan FACW FACW

Hura crepitans L. NI FAC* FAC*

Hutchinsia procumbens (L.) Desv. NI NI NI NI FAC FAC

Hybanthus concolor (T.F. Forst.) Spreng. FACU- FACU FACU+ FACU FACU* FACU-,FACU+

Hydrangea arborescens L. FACU FACU FACU- UPL FACU* UPL,FACU

Hydrangea paniculata Sieb. FAC* FAC*



North Central

North Plains

Central Plains




Hydrilla verticillata (L. f.) Royle OBL OBL OBL NI OBL OBL OBL

Hydrocharis morsus-ranae L. OBL OBL

Hydrocleys nymphoides (Humb. & Bonpl. ex Willd.) Buch. OBL NI OBL

Hydrocotyle americana L. OBL OBL OBL OBL

Hydrocotyle bonariensis Comm. ex Lam. NI FACW FACW OBL FACW,OBL

Hydrocotyle hirsuta Sw. FACU FACU

Hydrocotyle pusilla A. Rich. OBL OBL

Hydrocotyle ranunculoides L. f. OBL OBL OBL OBL OBL OBL OBL OBL OBL

Hydrocotyle sibthorpioides Lam. NI NI NI NI FAC FAC

Hydrocotyle umbellata L. OBL OBL OBL OBL OBL OBL OBL OBL OBL

Hydrocotyle verticillata Thunb. OBL OBL OBL* OBL OBL OBL NI OBL OBL OBL OBL*,OBL

Hydrolea corymbosa J.F. Macbr. ex Ell. OBL OBL

Hydrolea ovata Nutt. ex Choisy NI OBL OBL OBL OBL

Hydrolea quadrivalvis Walt. OBL OBL OBL

Hydrolea spinosa L. OBL OBL

Hydrolea uniflora Raf. OBL OBL OBL OBL

Hydrophyllum canadense L. FACU FACW FACW- FACU,FACW

Hydrophyllum fendleri (Gray) Heller NI NI FACW* FAC FAC FACW* FAC,FACW*

Hydrophyllum occidentale (S. Wats.) Gray FACW+ UPL FACW FACW UPL,FACW+

Hydrophyllum virginianum L. FAC FACW- FAC FAC FACW FACW* FAC,FACW

Hyeronima clusioides (Tul.) Muell.-Arg. FAC- FAC-

Hygrophila iriflora (Roxb.) Fosberg & Sachet OBL* OBL*

Hygrophila lacustris (Schlecht. & Cham.) Nees OBL OBL OBL

Hygrophila polysperma (Roxb.) T. Anders. NI OBL OBL

Hymenachne amplexicaulis (Rudge) Nees OBL OBL OBL

Hymenaea courbaril L. FACU FACU

Hymenocallis caroliniana (L.) Herbert OBL OBL OBL FACW FACW,OBL

Hymenocallis floridana (Raf.) Morton OBL OBL

Hymenocallis latifolia (P. Mill.) M. Roemer OBL FACW* FACW*,OBL

Hymenocallis liriosome (Raf.) Shinners OBL OBL OBL

Hymenocallis palmeri S. Wats. OBL OBL

Hymenocallis rotata (Ker-Gawl.) Herbert OBL OBL

Hymenoclea monogyra Torr. & Gray ex Gray NI NI NI UPL UPL

Hymenoclea salsola Torr. & Gray ex Gray NI NI UPL UPL

Hymenophyllum microcarpum Desv. OBL OBL

Hymenophyllum polyanthos (Sw.) Sw. OBL OBL



North Central

North Plains

Central Plains




Hymenophyllum wrightii Bosch FAC FAC

Hymenoxys odorata DC. NI NI NI NI UPL UPL

Hymenoxys texana (Coult. & Rose) Cockerell FACW FACW

Hypericum adpressum Raf. ex W. Bart. OBL OBL OBL OBL

Hypericum anagalloides Cham. & Schlecht. OBL* OBL OBL OBL OBL*,OBL

Hypericum ascyron L. FAC FAC+ FAC FAC,FAC+

Hypericum boreale (Britt.) Bickn. OBL OBL NI OBL

Hypericum brachyphyllum (Spach) Steud. FACW FACW

Hypericum buckleyi M.A. Curtis FAC FAC

Hypericum canadense L. FACW FACW FACW FACW FACW

Hypericum chapmanii P. Adams OBL OBL

Hypericum cistifolium Lam. FACW FACW- FACW-,FACW

Hypericum crux-andreae (L.) Crantz FACU FACW- NI FAC FACU,FACW-

Hypericum densiflorum Pursh FAC+ FACW- FACW- FACW- FAC+,FACW-

Hypericum denticulatum Walt. FACW- FACW FACW- FACW-,FACW

Hypericum diosmoides Griseb. FACW FACW

Hypericum dissimulatum Bickn. FACW NI FACW* FACW*,FACW

Hypericum drummondii (Grev. & Hook.) Torr. & Gray UPL FACU FACU FACU- FACU UPL,FACU

Hypericum edisonianum (Small) P. Adams & Robson OBL OBL

Hypericum ellipticum Hook. OBL OBL OBL NI OBL

Hypericum exile P. Adams FACW FACW

Hypericum fasciculatum Lam. FACW+ FACW+

Hypericum galioides Lam. OBL OBL OBL

Hypericum gentianoides (L.) B.S.P. UPL FACU FACU FACU- UPL,FACU

Hypericum graveolens Buckl. FAC FAC

Hypericum gymnanthum Engelm. & Gray OBL FACW OBL FACW FACW+ FACW,OBL

Hypericum hypericoides ssp. hypericoides (L.) Crantz FACU FAC FACU FACU FACU FACW FACU,FACW

Hypericum kalmianum L. FAC NI FACW- FAC,FACW-

Hypericum lissophloeus P. Adams OBL OBL

Hypericum majus (Gray) Britt. FACW FACW* FACW FACW FACW FACW FACW- FACW-,FACW

Hypericum microsepalum (Torr. & Gray) Gray ex S. Wats. FAC FAC

Hypericum mitchellianum Rydb. FACU FACW FACU,FACW

Hypericum mutilum L. FACW FACW FACW FACW FACW+ FACW FACW FACW,FACW+

Hypericum myrtifolium Lam. FACW FACW

Hypericum nitidum Lam. OBL OBL

Hypericum nudiflorum Michx. ex Willd. FACW+ FACW FACW FACW,FACW+



North Central

North Plains

Central Plains




Hypericum parvulum Greene FAC FAC

Hypericum prolificum L. FACU FACU FACU FACU FACU

Hypericum punctatum Lam. FAC- FAC FAC+ FACU FAC+ FACU,FAC+

Hypericum reductum (Svens.) P. Adams FACU FACU

Hypericum setosum L. OBL FACW FACW+ FACW,OBL

Hypericum sphaerocarpum Michx. FAC FACU FACU FAC FACU FACU,FAC

Hypericum tetrapetalum Lam. FACW FACW

Hypochaeris radicata L. NI NI NI NI NI UPL FACU FACU* NI FACU UPL,FACU

Hypoderris brownii J. Sm. OBL OBL

Hypogynium virgatum (Desv.) Dandy FACW FACW

Hypolepis nigrescens Hook. FACW FACW

Hypolepis punctata (Thunb.) Mett. FACU FACU

Hypolepis repens (L.) K. Presl FACW FACW FACW

Hypolytrum dissitiflorum Steud. FAC FAC

Hypolytrum nemorum (Vahl) Spreng. FAC FAC

Hypoxis hirsuta (L.) Coville FAC FACW- FAC+ FACW FACW FACW NI FAC FAC,FACW

Hypoxis juncea Sm. FACW- FAC FAC,FACW-

Hypoxis micrantha Pollard FAC FACW FACW FAC,FACW

Hypoxis sessilis L. FACU- FACU- FAC- FACU-,FAC-

Hyptis alata (Raf.) Shinners OBL OBL OBL

Hyptis americana (Poit.) Briq. FAC FAC

Hyptis atrorubens Poit. FACW FACW

Hyptis capitata Jacq. FAC FAC

Hyptis lantanifolia Poit. OBL OBL

Hyptis mutabilis (A. Rich.) Briq. FAC FAC FAC

Hyptis pectinata (L.) Poit. UPL FAC NI UPL,FAC

Hyptis suaveolens (L.) Poit. FACU NI FACU

Ichnanthus nemorosus (Sw.) Doell FAC FAC

Ichnanthus pallens (Sw.) Munro ex Benth. FAC FAC

Ilex amelanchier M.A. Curtis ex Chapman OBL OBL

Ilex anomala Hook. & Arn. FACU FACU

Ilex cassine L. FACW FACW NI FACW

Ilex cookii Britt. & Wilson FACW FACW

Ilex coriacea (Pursh) Chapman FACW FACW FACW FACW

Ilex decidua Walt. FACW FACW- FACW FACW FACW- FACW-,FACW

Ilex glabra (L.) Gray FAC+ FACW FACW FAC+,FACW



North Central

North Plains

Central Plains




Ilex laevigata (Pursh) Gray OBL FACW+ FACW+,OBL

Ilex longipes Chapman ex Trel. NI FAC FACW FAC,FACW

Ilex macfadyenii (Walp.) Rehd. FACW FACW

Ilex myrtifolia Walt. FACW FACW FACW

Ilex opaca Ait. FACU FAC- FACU+ FACU FACU,FAC*

Lower Coastal Plain FAC*

Ilex sideroxyloides var. occidentalis Loes. FAC FAC

Ilex sintenisii (Urban) Britt. OBL OBL

Ilex urbaniana var. riedalei (Loes.) Edwin FAC FAC

Ilex verticillata (L.) Gray FACW+ FACW FACW+ OBL* FACW,OBL*

Ilex volkensiana (Loesn.) Kanehira & Hatusima FACU FACU

Ilex vomitoria Ait. FAC- FAC FAC- FAC-,FAC

Iliamna grandiflora (Rydb.) Wiggins FACW- NI FACW-

Iliamna latibracteata Wiggins NI UPL UPL

Iliamna rivularis (Dougl. ex Hook.) Greene NI NI NI NI FAC FAC- FAC-,FAC

Illicium floridanum Ellis FACW FACW

Illicium parviflorum Michx. ex Vent. OBL OBL

Impatiens aurella Rydb. NI FACW FACW

Impatiens capensis Meerb. FACW FACW FACW FACW FACW FACW FACW+ FACW NI FACW,FACW+

Impatiens ecalcarata Blank. NI FACW FACW

Impatiens glandulifera Royle NI NI FACW* NI FACW*

Impatiens noli-tangere L. FACW NI FACW FACW

Impatiens pallida Nutt. FACW FACW FACW FACW FACW FACW FACW

Imperata brevifolia Vasey NI NI NI FAC FAC

Imperata cylindrica (L.) Palisot FACU NI FACU

Indigofera lindheimeriana Scheele FAC FAC

Indigofera suffruticosa P. Mill. FACU FAC- FACU UPL UPL,FAC-

Inga laurina (Sw.) Willd. FAC FAC

Inga quaternata Poepp. & Endl. FAC FAC

Inga vera Willd. FAC FAC

Inocarpus fagifer (Park.) Fosberg FACU FACU

Inula helenium L. FACU* UPL NI NI NI NI UPL,FACU*

Iodanthus pinnatifidus (Michx.) Steud. FACW FACW FACW OBL FACW- FACW-,OBL

Ipomoea alba L. NI FAC NI FAC* FACW FACU FACU,FACW

Ipomoea amnicola Morong NI FACW- FACW-

Ipomoea aquatica Forsk. OBL OBL OBL



North Central

North Plains

Central Plains




Ipomoea cairica (L.) Sweet FACU NI FACU* NI NI FACU*,FACU

Ipomoea coccinea L. FACU FAC FAC FACU FAC FAC- FACU,FAC

Ipomoea cordatotriloba var. cordatotriloba Dennst. FACU FAC FACU,FAC

Ipomoea hederacea Jacq. FACU FAC- FAC NI FACU FAC FACU* NI* NI FACU*,FAC

Ipomoea hederifolia L. NI FACW FAC FAC FAC* NI FAC*,FACW

Ipomoea imperati (Vahl) Griseb. FACU FAC FACU FACU FACU,FAC

Ipomoea indica (Burm. f.) Merr. FAC FAC* NI FAC FACU FACU,FAC

Ipomoea lacunosa L. FACW FAC+ FACW FACW- FACW FAC+,FACW

Ipomoea lindheimeri Gray FACU UPL UPL,FACU

Ipomoea littoralis Blume NI FACU FACU

Ipomoea pandurata (L.) G.F.W. Mey. FACU FACU FACU NI FAC- FACU FACU,FAC-

Ipomoea pes-caprae (L.) R. Br. FAC FAC FAC FAC FAC

Ipomoea purpurea (L.) Roth UPL FACU FACU- FAC FACU UPL UPL UPL FAC UPL NI UPL,FAC

Ipomoea quamoclit L. UPL* FACU+ FACU- FACU FACU* FACU UPL*,FACU+

Ipomoea sagittata Poir. FACW FACW FACW

Ipomoea setifera Poir. FACW FACW

Ipomoea tiliacea (Willd.) Choisy NI FACW FACW

Ipomoea violacea L. FACW- FACW- FAC FACW- FAC,FACW-

Ipomoea wrightii Gray NI FACW- FACW- FACW FACW-,FACW

Iresine diffusa Humb. & Bonpl. ex Willd. FAC- FAC* UPL UPL,FAC*

Iresine rhizomatosa Standl. FACW- FACW- FACW- FACW FACW FACW-,FACW

Iris brevicaulis Raf. OBL OBL OBL OBL OBL OBL

Iris fulva Ker-Gawl. OBL OBL OBL OBL OBL

Iris giganticaerulea Small OBL OBL

Iris hartwegii Baker NI

Iris hexagona Walt. OBL NI OBL OBL

Iris lacustris Nutt. FAC FAC

Iris missouriensis Nutt. OBL FACW+ OBL FACW- FACW FACW+ FACW FACW-,OBL

Iris prismatica Pursh ex Ker-Gawl. OBL OBL OBL

Iris pseudacorus L. OBL OBL OBL OBL OBL OBL NI OBL OBL OBL

Iris setosa Pallas ex Link NI FAC FAC

Iris setosa var. canadensis M. Foster ex B.L. Robins. & Fern. FACU- FACU-

Iris tridentata Pursh OBL OBL

Iris versicolor L. OBL OBL OBL OBL OBL

Iris virginica L. OBL OBL OBL OBL OBL OBL

Isachne angustifolia Nash OBL OBL



North Central

North Plains

Central Plains




Isachne carolinensis Ohwi FACU FACU

Isachne confusa Ohwi OBL OBL

Isachne distichophylla Munro ex Hbd. FAC FAC

Isachne miliacea Roth FAC* FAC*

Isachne pallens Hbd. FAC FAC

Isachne pulchella Roth FAC* FAC*

Isachne purpurascens Glassman FACU FACU

Ischaemum byrone (Trin.) A.S. Hitchc. FACU- FACU-

Ischaemum chordatum (Trin.) Hack. FAC FAC

Isocoma acradenia var. acradenia (Greene) Greene UPL FACU* NI UPL,FACU*

Isocoma arguta Greene FACU* FACU*

Isocoma menziesii var. vernonioides (Nutt.) Nesom FAC+ FAC+

Isoetes bolanderi Engelm. NI NI OBL OBL OBL OBL OBL

Isoetes butleri Engelm. FACW+ OBL OBL OBL OBL FACW+,OBL

Isoetes X eatonii Dodge (pro sp.) OBL OBL

Isoetes echinospora Durieu OBL OBL NI OBL OBL OBL OBL OBL

Isoetes engelmannii A. Braun OBL OBL OBL OBL

Isoetes flaccida Shuttlw. ex A. Braun OBL OBL

Isoetes X foveolata A.A. Eat. ex Dodge (pro sp.) OBL NI OBL

Isoetes howellii Engelm. NI OBL OBL OBL OBL

Isoetes lithophila N.E. Pfeiffer OBL OBL

Isoetes louisianensis Thieret OBL OBL

Isoetes macrospora Durieu OBL OBL OBL

Isoetes melanopoda Gay & Durieu ex Durieu OBL OBL OBL OBL OBL OBL NI NI OBL

Isoetes melanospora Engelm. OBL OBL

Isoetes nuttallii A. Braun ex Engelm. OBL OBL OBL

Isoetes occidentalis Henderson NI OBL OBL NI OBL

Isoetes piedmontana (N.E. Pfeiffer) C.F. Reed NI OBL OBL

Isoetes riparia Engelm. ex A. Braun OBL OBL OBL

Isoetes tegetiformans Rury OBL OBL

Isoetes tuckermanii A. Braun OBL NI OBL

Isotria medeoloides (Pursh) Raf. FACU FACU FACU FACU

Isotria verticillata Raf. FACU FACU FAC FAC FACU,FAC

Itea virginica L. OBL FACW+ OBL OBL FACW+,OBL

Iva acerosa (Nutt.) R.C. Jackson NI UPL* FACU NI* UPL*,FACU

Iva annua L. FAC FAC FAC FAC FAC FAC FAC* NI FAC*,FAC



North Central

North Plains

Central Plains




Iva axillaris Pursh NI FACU FAC FAC FAC FACW FAC FAC FACU,FACW

Iva frutescens L. FACW+ FACW+ FACW FACW,FACW+

Iva hayesiana Gray FACW FACW

Iva imbricata Walt. FACU FACW FACW- FACU,FACW

Iva microcephala Nutt. FACW FACW

Iva xanthifolia Nutt. FAC FAC FACU FAC FAC+ FAC FAC+ FAC FACU,FAC+

Ivesia aperta var. aperta (J.T. Howell) Munz NI UPL UPL

Ivesia kingii S. Wats. FAC* FACW FAC*,FACW

Ivesia lycopodioides Gray NI FAC FAC

Ivesia lycopodioides ssp. megalopetala (Rydb.) Keck OBL OBL

Ivesia pickeringii Torr. ex Gray OBL OBL

Ivesia pityocharis Ertter NI

Ivesia sericoleuca (Rydb.) Rydb. NI FAC* FAC*

Ixora ferrea (Jacq.) Benth. FAC FAC

Jaborosa integrifolia Lam. FAC FAC

Jacquemontia ovalifolia (Vahl ex West) Hallier f. FACW NI FACW

Jacquemontia tamnifolia (L.) Griseb. FACU- FACU- UPL* FAC* FAC UPL*,FAC

Jacquinia keyensis Mez FAC* FAC*,FACW

Keys FACW

Jamesia americana Torr. & Gray NI NI FACU UPL FACU- FACU* UPL,FACU

Jamesianthus alabamensis Blake & Sherff OBL OBL

Jaumea carnosa (Less.) Gray OBL OBL OBL

Juglans californica S. Wats. FAC FAC

Juglans cinerea L. FACU+ FACU- FACU+ NI FACU FACU-,FACU+

Juglans hindsii (Jepson) Jepson ex R.E. Sm. NI FAC FAC

Juglans major (Torr.) Heller FAC- FACW- NI FAC-,FACW-

Juglans microcarpa Berl. FAC FAC- FAC FAC-,FAC

Juglans nigra L. FACU FACU FACU FACU FACU FACU UPL NI UPL,FACU

Juncus abortivus Chapman OBL OBL OBL

Juncus acuminatus Michx. OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL

Juncus acutus L. NI FACW FACW+ FACW FACW,FACW+

Juncus albescens (Lange) Fern. NI NI OBL OBL OBL FACW FACW,OBL

Juncus alpinoarticulatus Chaix NI NI OBL OBL OBL OBL OBL OBL

Juncus alpinoarticulatus ssp. fuscescens (Fern.) Hämet-Ahti OBL OBL NI NI NI NI OBL

Juncus ambiguus Guss. NI NI NI NI NI NI NI FACW NI FACW

Juncus arcticus Willd. OBL OBL



North Central

North Plains

Central Plains




Juncus articulatus L. OBL OBL OBL OBL NI OBL OBL OBL OBL OBL OBL

Juncus balticus Willd. FACW+ FACW* OBL FACW FACW OBL OBL FACW FACW+ FACW+ OBL FACW*,OBL

Juncus balticus var. littoralis Engelm. OBL NI NI NI NI OBL

Juncus biflorus Ell. FACW FACW FACW FACW NI FACW

Juncus biglumis L. NI FACW OBL OBL FACW,OBL

Juncus bolanderi Engelm. OBL OBL OBL

Juncus brachycarpus Engelm. FACW FACW FACW FACW FACW FACW

Juncus brachycephalus (Engelm.) Buch. OBL OBL OBL OBL NI OBL OBL

Juncus brachyphyllus Wieg. NI NI NI NI NI NI FAC FAC

Juncus brevicaudatus (Engelm.) Fern. OBL OBL OBL NI OBL OBL OBL

Juncus breweri Engelm. FACW* FACW*

Juncus bryoides F.J. Herm. OBL NI FACW* FACW*,OBL

Juncus bufonius L. FACW FACW FACW+ OBL OBL OBL OBL OBL FACW FACW+ OBL FACW+ FACW,OBL

Juncus bufonius var. occidentalis F.J. Herm. NI NI NI NI FACW FACW

Juncus bulbosus L. NI OBL OBL

Juncus caesariensis Coville OBL NI OBL

Juncus canadensis J. Gay ex Laharpe OBL OBL OBL NI OBL OBL

Juncus capillaris F.J. Herm. NI FACW+ FACW+

Juncus capitatus Weigel FACU FACU+ FACU FACU,FACU+

Juncus castaneus Sm. NI NI OBL FACW+ FACW FACW FACW,OBL

Juncus chlorocephalus Engelm. NI FACW FACW

Juncus compressus Jacq. NI NI NI NI FACW+ OBL FACW+,OBL

Juncus confusus Coville NI NI FACW* FAC+ FAC FACW FAC,FACW

Juncus cooperi Engelm. FACW FACW+ FACW FACW,FACW+

Juncus coriaceus Mackenzie FACW+ FACW OBL FACW,OBL

Juncus covillei Piper NI FACW FACW FACW

Juncus debilis Gray OBL OBL OBL FACW* FACW*,OBL

Juncus dichotomus Ell. FACW- FACW NI NI FACW OBL FACW- FACW-,OBL

Juncus diffusissimus Buckl. FACW FACW FACW FACW+ FACW FACW FACW,FACW+

Juncus drummondii E. Mey. NI NI FACW FAC FACW- FACW FACW FAC,FACW

Juncus dubius Engelm. NI NI FACW* FACW*

Juncus dudleyi Wieg. NI NI NI NI NI NI NI FAC+ NI FACW FAC+,FACW

Juncus duranii Ewan OBL* OBL*

Juncus effusus L. FACW+ FACW+ OBL OBL OBL OBL OBL OBL FACW FACW+ OBL OBL OBL FACW,OBL

Juncus effusus var. solutus Fern. & Wieg. OBL NI NI NI NI NI NI NI OBL

Juncus elliottii Chapman FACW+ OBL OBL FACW+,OBL



North Central

North Plains

Central Plains




Juncus ensifolius Wikstr. NI NI FACW NI FACW FACW+ FACW FACW FACW FACW FACW,FACW+

Juncus falcatus E. Mey. FACW FACW

Juncus filiformis L. FACW FACW NI NI OBL FACW+ FACW+ FACW FACW,OBL

Juncus filipendulus Buckl. NI FAC+ FAC FAC,FAC+

Juncus gerardii Loisel. FACW+ OBL OBL FAC NI FACW+ FACW+ FAC,OBL

Juncus greenei Oakes & Tuckerman FAC FAC FAC

Juncus gymnocarpus Coville OBL OBL OBL

Juncus hallii Engelm. NI NI FAC FAC FAC

Juncus hemiendytus F.J. Herm. OBL FACW+ OBL FACW+,OBL

Juncus hemiendytus var. abjectus (F.J. Herm.) Ertter OBL OBL OBL OBL

Juncus inflexus L. FACW FACW FACW

Juncus interior Wieg. FACU FACU FAC+ FACW FAC FAC FAC FAC+ FAC FACU,FACW

Juncus kelloggii Engelm. FACW FACW FACW FACW

Juncus leiospermus var. ahartii Ertter OBL OBL

Juncus leiospermus var. leiospermus F.J. Herm. FACW* FACW*

Juncus lesueurii Boland. FACW FACW FACW

Juncus longii Fern. OBL OBL NI NI OBL

Juncus longistylis Torr. FACW FACW FACW FACW FACW+ FACW FACW FACW,FACW+

Juncus luciensis Ertter OBL OBL

Juncus macrandrus Coville OBL OBL

Juncus macrophyllus Coville FACW FACW* FACW* FACW*,FACW

Juncus marginatus Rostk. FACW FACW FACW NI FACW FACW FACW FACW+ NI NI* FACW,FACW+

Juncus marginatus var. marginatus Rostk. NI NI NI NI NI NI NI NI OBL OBL

Juncus megacephalus M.A. Curtis OBL OBL OBL OBL

Juncus mertensianus Bong. NI NI OBL FACW OBL OBL OBL FACW,OBL

Juncus mexicanus Willd. ex J.A. & J.H. Schultes FACW FACW FACW FACW FACW

Juncus militaris Bigelow OBL NI OBL OBL

Juncus nevadensis S. Wats. NI FACW FACW FACW FACW FACW

Juncus nodatus Coville NI OBL OBL OBL OBL OBL

Juncus nodosus L. OBL OBL* OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL*,OBL

Juncus occidentalis Wieg. NI NI NI FACW FACW

Juncus X oronensis Fern. (pro sp.) FACW FACW

Juncus orthophyllus Coville FACW FACW FACW FACW

Juncus oxymeris Engelm. FACW+ FACW FACW,FACW+

Juncus parryi Engelm. NI NI FAC FAC+ FACU FACU,FAC+

Juncus patens E. Mey. FACW FAC FAC,FACW



North Central

North Plains

Central Plains




Juncus pelocarpus E. Mey. OBL NI OBL OBL

Juncus phaeocephalus Engelm. NI FACW NI FACW

Juncus planifolius R. Br. NI FACW FACW

Juncus polyanthemos Buch. NI OBL OBL

Juncus polycephalus Michx. OBL OBL OBL OBL

Juncus prominens (Buch.) Miyabe & Kudo FACW- FACW FACW-,FACW

Juncus regelii Buch. NI FACW FACW FACW FACW

Juncus repens Michx. OBL OBL NI OBL NI OBL

Juncus roemerianus Scheele OBL OBL OBL OBL

Juncus rugulosus Engelm. OBL OBL

Juncus saximontanus A. Nels. FACW NI FACW FACW FACW+ FACW OBL FACW* FACW*,OBL

Juncus scirpoides Lam. FACW FACW+ FACW+ FACW+ FACW FACW,FACW+

Juncus secundus Beauv. ex Poir. FACU FAC FAC- FAC FACU,FAC

Juncus squarrosus L. NI

Juncus stygius L. OBL OBL NI NI OBL OBL

Juncus subcaudatus (Engelm.) Coville & Blake OBL FAC OBL FAC,OBL

Juncus subnodulosus Schrank OBL OBL

Juncus subtilis E. Mey. OBL OBL

Juncus supiniformis Engelm. OBL OBL OBL OBL

Juncus tenuis Willd. FAC- FAC FAC FAC FAC FAC FACW- FAC+ FACW- FACW FACW OBL FAC+ FAC-,OBL

Juncus texanus (Engelm.) Coville OBL OBL

Juncus textilis Buch. OBL OBL

Juncus tiehmii Ertter NI NI FACW+ FACW+

Juncus torreyi Coville FACW FACW FACW FACW FACW FACW FACW FACW+* FACW FACW+ FACW,FACW+

Juncus tracyi Rydb. NI NI OBL* FACW+ FACW FACW,OBL*

Juncus triformis Engelm. FACW FACW

Juncus triglumis L. NI NI FACW FACW FACW FACW

Juncus trigonocarpus Steud. OBL OBL OBL

Juncus tweedyi Rydb. NI OBL OBL OBL

Juncus uncialis Greene FACW+ FACW+ OBL FACW+,OBL

Juncus validus Coville FACW FACW+ FACW FAC FACW FAC,FACW+

Juncus vaseyi Engelm. FACW FACW FACW OBL FACW FACW FACW,OBL

Juncus xiphioides E. Mey. OBL OBL OBL OBL OBL

Juniperus communis L. NI NI NI NI NI NI NI NI FACU* NI NI FACU*

Juniperus horizontalis Moench FACU FACU FACU FACU FACU- UPL UPL,FACU

Juniperus virginiana L. FACU FACU- FACU FACU- FACU- FACU- NI FACU-,FACU



North Central

North Plains

Central Plains




Juniperus virginiana var. silicicola (Small) J. Silba FAC FACW FAC,FACW

Justicia americana (L.) Vahl OBL OBL OBL OBL OBL OBL

Justicia comata (L.) Lam. OBL OBL

Justicia cooleyi Monachino & Leonard FACW FACW

Justicia crassifolia (Chapman) Chapman ex Small OBL OBL

Justicia martinsoniana Howard OBL* OBL*

Justicia ovata (Walt.) Lindau OBL OBL OBL OBL OBL

Kalanchoe pinnata (Lam.) Pers. UPL FACU- UPL UPL,FACU-

Kalmia angustifolia L. FAC FAC FAC

Kalmia carolina Small FAC FACW- FAC,FACW-

Kalmia cuneata Michx. FACW+ FACW+

Kalmia hirsuta Walt. FACW- FACW-

Kalmia latifolia L. FACU FACU FACU- FACU-,FACU

Kalmia microphylla (Hook.) Heller NI NI OBL OBL OBL OBL OBL

Kalmia polifolia Wangenh. OBL OBL NI OBL OBL FACW FACW,OBL

Kickxia elatine (L.) Dumort. FAC FACU FAC FAC FACU* UPL NI* NI UPL,FAC

Kobresia myosuroides (Vill.) Fiori NI NI FAC FACU NI FACW FACU FACU,FACW

Kobresia sibirica (Turcz. ex Ledeb.) Boeckl. NI NI FACW FAC+ FACW FAC+,FACW

Kobresia simpliciuscula (Wahlenb.) Mackenzie NI FACW FAC FACW FAC,FACW

Kochia americana S. Wats. NI NI FAC- FAC FACU FACU FAC+ FACU,FAC+

Kochia californica S. Wats. FACW FACW FACW

Kochia scoparia (L.) Schrad. UPL NI FACU- FAC FACU FACU FAC FACU FAC NI* UPL,FAC

Koeberlinia spinosa var. tenuispina Kearney & Peebles NI NI UPL UPL

Koenigia islandica L. NI OBL NI OBL OBL

Kosteletzkya depressa (L.) O.J. Blanchard, Fryxell & Bates FAC+ NI FAC+

Kosteletzkya virginica (L.) K. Presl ex Gray OBL OBL OBL OBL

Krigia biflora (Walt.) Blake FACU FACU FACU UPL FAC* FAC* FACU UPL,FAC*

Krigia cespitosa (Raf.) Chambers FAC FACU+ FAC- FACU FAC* FACU,FAC

Krigia dandelion (L.) Nutt. FAC FACU FACU FAC FACU* FACU*,FAC

Krigia virginica (L.) Willd. UPL FACU- UPL UPL FACU* UPL,FACU*

Kumlienia cooleyae (Vasey & Rose) Greene FACW FAC FAC,FACW

Kumlienia hystricula (Gray) Greene OBL OBL

Kummerowia stipulacea (Maxim.) Makino FACU FACU- FACU UPL FACU UPL,FACU

Kummerowia striata (Thunb.) Schindl. FACU FACU FACU UPL FAC- NI UPL,FAC-

Kyllinga brevifolia Rottb. FACW FACW FACW FACW FAC FAC FAC,FACW

Kyllinga gracillima Miq. NI FACU FACU



North Central

North Plains

Central Plains




Kyllinga nemoralis (J.R. & G. Forst.) Dandy ex Hutchinson & Dalziel FAC FAC

Kyllinga odorata Vahl FACW FACW- NI FACW FACW-,FACW

Kyllinga pumila Michx. FACW FACW FACW FACW FACW FACW FACW

Labordia fagraeoidea Gaud. FACW FACW

Labordia hedyosmifolia Baill. FAC* FAC*

Labordia hirtella Mann FAC FAC

Labordia hosakana (Sherff) W.L. Wagner, Herbst & Sohmer FACW FACW

Labordia pumila (Hbd.) Skottsberg FAC* FAC*

Labordia venosa Sherff FAC FAC

Labordia waialealae Wawra FACW FACW

Labordia waiolani Wawra NI

Lachnanthes caroliana (Lam.) Dandy OBL OBL OBL

Lachnocaulon anceps (Walt.) Morong OBL OBL OBL OBL

Lachnocaulon beyrichianum Sporleder ex Koern. OBL OBL

Lachnocaulon digynum Koern. FACW+ NI FACW+

Lachnocaulon engleri Ruhl. FACW+ FACW+

Lachnocaulon minus (Chapman) Small OBL OBL

Lactuca biennis (Moench) Fern. FACU FACU FAC FAC FAC FAC FAC FAC* FACU* FACU*,FAC

Lactuca canadensis L. FACU- FACU- FACU+ FACU FACU FAC+ FACU FACU FACU+ FACU FACU-,FAC+

Lactuca floridana (L.) Gaertn. FACU- FACU FAC- FAC FACU FAC+ NI FACU FACU-,FAC+

Lactuca graminifolia Michx. UPL FACU NI FAC* FAC NI UPL,FAC

Lactuca ludoviciana (Nutt.) Riddell NI NI UPL FAC- FAC FAC* FAC* NI FAC NI UPL,FAC

Lactuca saligna L. UPL FACU FACU FACU+ FACU* FACU* UPL UPL NI* UPL,FACU+

Lactuca serriola L. FAC- FAC FAC FACU FAC FAC FAC FACU FACU FAC NI FACU,FAC

Lactuca tatarica var. pulchella (Pursh) Breitung FAC FAC FACU FAC FAC FAC FAC FAC- FAC* FAC FACU,FAC

Laennecia coulteri (Gray) Nesom NI FACW- FACW- FAC FAC+ FAC,FACW-

Lagenifera erici Forbes OBL OBL

Lagenifera helenae Forbes & Lydgate OBL OBL

Lagenifera maviensis Mann OBL OBL

Lagenocarpus guianensis Lindl. & Nees OBL OBL

Laguncularia racemosa (L.) Gaertn. f. FACW+ OBL FACW+,OBL

Lamarckia aurea (L.) Moench NI NI FACU NI FACU

Lantana camara L. FACU FACU NI NI FACU- UPL UPL,FACU

Lantana urticoides Hayek FACU FAC- FACU* NI FACU*,FAC-

Laplacea portoricensis (Krug & Urban) Dyer FACW FACW

Laportea canadensis (L.) Weddell FAC FACW FACW FAC FACW FAC FAC,FACW



North Central

North Plains

Central Plains




Lapsana communis L. NI NI NI NI NI NI NI NI NI NI FAC FAC

Larix decidua P. Mill. UPL* NI UPL* UPL*

Larix laricina (Du Roi) K. Koch FACW FACW FACW FACW

Larix occidentalis Nutt. NI FACU+ FACU+

Lasiacis divaricata (L.) A.S. Hitchc. NI UPL UPL

Lasianthus lanceolatus (Griseb.) G. Maza OBL OBL

Lasthenia burkei (Greene) Greene OBL OBL

Lasthenia californica DC. ex Lindl. NI UPL UPL FACU* UPL,FACU*

Lasthenia chrysantha (Greene ex Gray) Greene FAC* FAC*

Lasthenia conjugens Greene FACW FACW

Lasthenia ferrisiae Ornduff OBL OBL

Lasthenia fremontii (Torr. ex Gray) Greene OBL OBL

Lasthenia glaberrima DC. OBL OBL OBL

Lasthenia glabrata Lindl. FACW FACW

Lasthenia minor (DC.) Ornduff NI FACW FACW

Lasthenia platycarpha (Gray) Greene FACW FACW

Lastreopsis effusa (Sw.) Tindale FACU FACU

Lathyrus hirsutus L. NI NI NI NI NI FAC* FAC*

Lathyrus japonicus Willd. FACU- NI FACU- FACU- FACU* FAC FACU-,FAC

Lathyrus jepsonii Greene OBL OBL

Lathyrus lanszwertii Kellogg NI NI FACU- UPL NI UPL,FACU-

Lathyrus palustris L. FACW+ OBL FACW FAC FACW NI OBL OBL OBL FAC,OBL

Lathyrus pratensis L. FACU FACU* UPL UPL,FACU

Lathyrus pusillus Ell. FAC FACW- UPL* FAC FAC+ NI UPL*,FACW-

Lathyrus venosus Muhl. ex Willd. FACW FAC FAC FACW FAC* FAC* NI FAC*,FACW

Layia chrysanthemoides (DC.) Gray FACW* FACW*

Layia heterotricha (DC.) Hook. & Arn. FAC FAC

Layia munzii Keck FACW FACW

Leavenworthia aurea Torr. NA*

Leavenworthia torulosa Gray OBL FACU FACU,OBL

Leavenworthia uniflora (Michx.) Britt. FAC FAC- FACU- FACU-,FAC

Lechea torreyi Leggett ex Britt. NI FACU FACU

Ledum X columbianum Piper (pro sp.) OBL OBL OBL

Ledum glandulosum Nutt. NI OBL FACW+ OBL FACW+,OBL

Ledum groenlandicum Oeder OBL OBL NI OBL FACW FACW,OBL

Ledum palustre ssp. decumbens (Ait.) Hultén FACW FACW



North Central

North Plains

Central Plains




Leersia hexandra Sw. OBL OBL OBL OBL OBL

Leersia lenticularis Michx. OBL OBL OBL OBL OBL OBL

Leersia monandra Sw. FACW FACW UPL UPL,FACW

Leersia oryzoides (L.) Sw. OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL

Leersia virginica Willd. FACW FACW FACW FACW FACW FACW NI FACW

Legenere limosa (Greene) McVaugh OBL OBL

Leiophyllum buxifolium (Berg.) Ell. FACU- FACU FACU-,FACU

Leitneria floridana Chapman OBL OBL OBL OBL

Lembertia congdonii (Gray) Greene FACU* FACU*

Lemna aequinoctialis Welw. NI OBL OBL NI OBL OBL OBL OBL NI OBL

Lemna gibba L. OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL

Lemna minor L. OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL

Lemna minuta Kunth OBL OBL OBL NI OBL OBL OBL OBL OBL OBL OBL

Lemna obscura (Austin) Daubs NI OBL OBL NI NI OBL NI NI NI OBL

Lemna perpusilla Torr. OBL OBL OBL OBL OBL OBL OBL OBL NI OBL

Lemna trisulca L. OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL

Lemna turionifera Landolt NI NI NI NI NI NI NI NI NI OBL NI OBL

Lemna valdiviana Phil. OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL

Leonotis nepetifolia (L.) Ait. f. FACU* FACU* FACU NI FACU*,FACU

Leontodon autumnalis L. NI NI NI NI FAC* NI NI NI FAC*

Leontodon taraxacoides (Vill.) Mérat FACU UPL UPL* NI UPL UPL FACU UPL*,FACU

Lepianthes peltata (L.) Raf. FAC FAC

Lepianthes umbellata (L.) Raf. NI FAC FAC

Lepidium davisii Rollins NI

Lepidium densiflorum Schrad. FAC FACU FAC FACU FAC FAC FAC FACU FAC- FAC FAC NI FACU,FAC

Lepidium dictyotum Gray FACW+ FACW OBL FACW,OBL

Lepidium flavum var. flavum Torr. NI FAC FAC

Lepidium latifolium L. FACU NI FACW FACW NI FAC* FAC FAC FACW FACU,FACW

Lepidium latipes Hook. NI OBL OBL

Lepidium montanum Nutt. NI NI NI UPL UPL UPL NI UPL UPL

Lepidium nitidum var. nitidum Nutt. NI NI FAC FAC

Lepidium nitidum var. oreganum (T.J. Howell) C.L. Hitchc. NI FAC FAC

Lepidium oxycarpum Torr. & Gray NI OBL OBL

Lepidium perfoliatum L. UPL FACU FAC FACU FAC FAC UPL* FACU- FACU+ FACU UPL*,FAC

Lepidium thurberi Woot. NI NI

Lepidium virginicum L. FACU- FACU FACU- FACU FACU FAC- UPL* FACU FACU FACU UPL FACU UPL UPL*,FAC-



North Central

North Plains

Central Plains




Lepidospartum squamatum (Gray) Gray NI NI

Lepinia ponapensis Hosokawa FACU FACU

Lepironia articulata (Retz.) Domin OBL OBL

Leptarrhena pyrolifolia (D. Don) R. Br. ex Ser. NI FACW FACW FACW

Leptochloa fascicularis (Lam.) Gray FACW FACW+ OBL OBL OBL FACW FACW* OBL FACW OBL FACW FACW*,OBL

Leptochloa mucronata (Michx.) Kunth FACW FACW FACW

Leptochloa nealleyi Vasey OBL FACW FACW FACW,OBL

Leptochloa panicoides (J. Presl) A.S. Hitchc. NI FACW OBL FACW NI FACW,OBL

Leptochloa scabra Nees FACW OBL FACW,OBL

Leptochloa uninervia (J. Presl) A.S. Hitchc. & Chase FACW- FACW NI NI FACW FACW- FACW NI FACW OBL FACW FACW-,OBL

Leptochloa virgata (L.) Beauv. FACU FAC* FACW NI FACU,FACW

Leptochloa viscida (Scribn.) Beal NI FACU* FACW FACU*,FACW

Leptospermum scoparium J.R. & G. Forst. FAC FAC

Lepturus repens (G. Forst.) R. Br. FACU* FACU*

Lepuropetalon spathulatum Ell. FACW- FACW FACW-,FACW

Lespedeza angustifolia (Pursh) Ell. FAC FACU+ FACU+,FAC

Lespedeza capitata Michx. FACU- FACU FACU FACU- UPL UPL* UPL*,FACU

Lespedeza cuneata (Dum.-Cours.) G. Don FACU- UPL* UPL* FAC FACU* NI UPL*,FAC

Lesquerella gracilis (Hook.) S. Wats. NI UPL* UPL* FACW* UPL*,FACW*

Lesquerella pallida (Torr. & Gray) S. Wats. FAC* FAC*

Leucaena leucocephala (Lam.) de Wit FACU+ FACU NI FAC UPL UPL,FAC

Leucanthemum vulgare Lam. UPL UPL NI NI NI NI NI NI NI NI NI NI UPL,FACU-


Leucospora multifida (Michx.) Nutt. OBL OBL FACW+ OBL FACW+ FACW+,OBL

Leucothoe axillaris (Lam.) D. Don FACW+ FACW FACW,FACW+

Leucothoe davisiae Torr. ex Gray FACW OBL FACW,OBL

Leucothoe racemosa (L.) Gray FACW FACW FACW FACW

Leucothoe recurva (Buckl.) Gray FACU FACU FACU

Lewisia brachycalyx Engelm. ex Gray FACU FACU- FACW FACU-,FACW

Lewisia cantelovii J.T. Howell OBL* OBL*

Lewisia pygmaea (Gray) B.L. Robins. NI NI FACU FACU FACU FAC* NI FACU,FAC*

Lewisia triphylla (S. Wats.) B.L. Robins. NI FACU UPL FAC+ UPL,FAC+

Leymus arenarius (L.) Hochst. FACU- FACU FACU-,FACU

Leymus cinereus (Scribn. & Merr.) A. Löve NI UPL UPL FACU* FACU FAC- FAC* UPL,FAC*

Leymus condensatus (J. Presl) A. Löve NI FACU FACU

Leymus innovatus (Beal) Pilger UPL NI UPL* UPL*,UPL



North Central

North Plains

Central Plains




Leymus mollis (Trin.) Hara NI NI FACU UPL FAC UPL,FAC

Leymus triticoides (Buckl.) Pilger NI NI FAC FACU* FAC+ FAC FAC+ NI FACU*,FAC+

Leymus X vancouverensis (Vasey) Pilger (pro sp.) NI UPL UPL

Liatris acidota Engelm. & Gray FACW FAC+ FAC+,FACW

Liatris garberi Gray FACW FACW

Liatris gracilis Pursh FACU FACU

Liatris lancifolia (Greene) Kittell FAC+ FACW FAC* FAC* FAC*,FACW

Liatris ligulistylis (A. Nels.) K. Schum. NI FACU+ FAC NI NI FAC FAC- FACU+,FAC

Liatris pycnostachya Michx. FACU FACU FAC- FAC FAC FAC+ FACU,FAC+

Liatris scariosa var. nieuwlandii Lunell UPL UPL* UPL*,UPL

Liatris spicata (L.) Willd. FAC+ FACU FAC FACU,FAC+

Ligusticum canadense (L.) Britt. FAC FAC FAC FAC

Ligusticum canbyi Coult. & Rose FACW* FAC FAC,FACW*

Ligusticum grayi Coult. & Rose NI NI NI FAC* FAC*

Ligusticum porteri Coult. & Rose NI NI FAC* FACU- NI FACU-,FAC*

Ligusticum scothicum L. FAC FAC FAC

Ligusticum tenuifolium S. Wats. NI FAC FACW FAC,FACW

Ligusticum verticillatum (Hook.) Coult. & Rose ex Rose FACW FACW

Ligustrum sinense Lour. FACU FAC NI UPL* NI UPL*,FAC

Ligustrum vulgare L. FACU UPL FAC-* NI UPL UPL,FAC-*

Lilaea scilloides (Poir.) Hauman OBL OBL OBL OBL

Lilaeopsis carolinensis Coult. & Rose OBL FACW FACW,OBL

Lilaeopsis chinensis (L.) Kuntze OBL OBL OBL

Lilaeopsis masonii Mathias & Constance OBL OBL

Lilaeopsis occidentalis Coult. & Rose OBL OBL NI OBL

Lilaeopsis schaffneriana var. recurva (A.W. Hill) Affolter OBL* OBL*

Lilium bolanderi S. Wats. FACW FACW- FACW-,FACW

Lilium canadense L. FAC+ FAC FAC+ FAC,FAC+

Lilium catesbaei Walt. FACW FAC+ FAC+,FACW

Lilium grayi S. Wats. FACU FAC FACU,FAC

Lilium kelleyanum J.G. Lemmon OBL OBL OBL

Lilium kelloggii Purdy NI FAC* FAC*

Lilium maritimum Kellogg FACW FACW

Lilium michauxii Poir. FAC FAC+ FAC FAC,FAC+

Lilium michiganense Farw. NI NI NI FACW FACW NI FACW

Lilium occidentale Purdy FACW+ FACW+ FACW+



North Central

North Plains

Central Plains




Lilium pardalinum Kellogg FACW+ OBL FACW+,OBL

Lilium pardalinum ssp. vollmeri (Eastw.) Skinner OBL OBL OBL

Lilium parryi S. Wats. OBL FACW FACW,OBL

Lilium parvum Kellogg OBL OBL OBL OBL

Lilium philadelphicum L. FACU+ FACU- FAC- FAC FACW FACU FACW+ FACU FAC- FACU-,FACW+

Lilium superbum L. FACW+ FACW FACW* FACW*,FACW+

Lilium wigginsii Beane & Vollmer FACW NI FACW

Limnanthes alba Hartw. ex Benth. NI FACW FACW

Limnanthes bakeri J.T. Howell OBL OBL

Limnanthes douglasii R. Br. OBL FACW FACW,OBL

Limnanthes floccosa T.J. Howell OBL OBL OBL

Limnanthes gracilis T.J. Howell OBL OBL OBL

Limnanthes montana Jepson OBL OBL

Limnanthes striata Jepson FACW FACW

Limnanthes vinculans Ornduff OBL* OBL*

Limnobium laevigatum (Humb. & Bonpl. ex Willd.) Heine OBL OBL

Limnobium spongia (Bosc) L.C. Rich. ex Steud. OBL OBL OBL OBL OBL OBL

Limnocharis flava (L.) Buch. OBL OBL

Limnophila aromatica (Lam.) Merr. OBL OBL

Limnophila fragrans (Forst.) Seem. OBL OBL

Limnophila indica (L.) Druce OBL OBL OBL

Limnophila X ludoviciana Thieret OBL OBL

Limnophila sessiliflora (Vahl) Blume OBL OBL OBL OBL

Limnosciadium pinnatum (DC.) Mathias & Constance FACW- FACW OBL FACW* FACW-,OBL

Limnosciadium pumilum (Engelm. & Gray) Mathias & Constance OBL FACW+ FACW+,OBL

Limonium arborescens (Brouss.) Kuntze FAC* FAC*

Limonium californicum (Boiss.) Heller NI OBL OBL

Limonium carolinianum (Walt.) Britt. OBL OBL OBL OBL

Limonium limbatum Small FACW+ FACW FACW,FACW+

Limonium reniforme (Girard) Linchevskii OBL OBL

Limonium sinuatum (L.) P. Mill. FACW FACW

Limosella acaulis Sessé & Moc. OBL OBL OBL OBL OBL

Limosella aquatica L. OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL

Limosella australis R. Br. OBL OBL NI OBL OBL

Linanthus arenicola (M.E. Jones) Jepson & V. Bailey NI UPL UPL

Linanthus bicolor (Nutt.) Greene NI NI



North Central

North Plains

Central Plains




Linanthus bolanderi (Gray) Greene NI UPL UPL

Linanthus dichotomus Benth. NI NI UPL UPL

Linanthus nuttallii (Gray) Greene ex Milliken NI FAC UPL FACU- UPL UPL,FAC

Lindera benzoin (L.) Blume FACW- FACW FACW- FACW FACW- FACW-,FACW

Lindera melissifolia (Walt.) Blume OBL OBL OBL

Lindera subcoriacea B.E. Wofford NI OBL OBL

Lindernia antipoda (L.) Alston NI FACW FACW

Lindernia crustacea (L.) F. Muell. FACU FAC FACW FACU,FACW

Lindernia diffusa (L.) Wettst. FACW FACW

Lindernia dubia (L.) Pennell OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL

Lindernia dubia var. anagallidea (Michx.) Cooperrider OBL FACW+ OBL OBL OBL OBL OBL OBL OBL OBL FACW+,OBL

Lindernia dubia var. dubia (L.) Pennell FACW NI FACW NI NI NI NI NI NI NI FACW FACW

Lindernia grandiflora Nutt. OBL OBL

Lindernia monticola Muhl. ex Nutt. OBL OBL

Lindsaea ensifolia Sw. FACU* FACU*

Lindsaea portoricensis Desv. FACW FACW

Lindsaea stricta var. jamesoniiformis Kramer OBL OBL

Lindsaea walkerae Hook. FAC FAC

Linnaea borealis L. FAC FAC FAC FACU FACU+ FACU FACU- FAC FACU FACU-,FAC

Linum arenicola (Small) Winkl. OBL OBL

Linum carteri Small FACW FACW

Linum floridanum (Planch.) Trel. FAC FAC FAC FAC

Linum medium (Planch.) Britt. FACU FAC FACU* UPL FAC* UPL,FAC

Linum striatum Walt. FACW FACW- FACW- FACW+ FACW-,FACW+

Linum virginianum L. FACU FAC+ FACW NI FACU,FACW

Linum westii Rogers OBL OBL

Liparis hawaiensis Mann FAC FAC

Liparis liliifolia (L.) L.C. Rich. ex Ker-Gawl. FACU- FACU FACU- FACU* FACU-,FACU

Liparis loeselii (L.) L.C. Rich. FACW FACW FACW+ OBL FACW FACW FACW,OBL

Liparis nervosa (Thunb.) Lindl. OBL FACW FACW,OBL

Lipocarpha aristulata (Coville) G. Tucker NI OBL FACW+ FACW FACW FACW FACW* FACW*,OBL

Lipocarpha drummondii (Nees) G. Tucker OBL* OBL FACW+ OBL FACW FACW+ FACW NI NI FACW,OBL

Lipocarpha maculata (Michx.) Torr. OBL OBL OBL OBL

Lipocarpha micrantha (Vahl) G. Tucker FACW+ OBL OBL OBL FACW FACW+ OBL* NI OBL FACW OBL FACW,OBL

Lipocarpha microcephala Kunth FAC OBL FAC,OBL

Lipocarpha occidentalis (Gray) G. Tucker FACW OBL* FACW,OBL*



North Central

North Plains

Central Plains




Lipochaeta succulenta (Hook. & Arn.) DC. FAC FAC

Lippia alba (P. Mill.) N.E. Br. ex Britt. & Wilson FAC+ FAC* FAC FAC*,FAC+

Liquidambar styraciflua L. FAC FAC+ FACW FAC FAC,FACW

Liriodendron tulipifera L. FACU FACU FACU+ FACU FACU,FACW

Coastal Plain FACW

Lisianthius laxiflorus Urban FACW FACW

Listera auriculata Wieg. FACW FACW+ FACW,FACW+

Listera australis Lindl. FACW FACW FACW FACW

Listera borealis Morong NI FACU FACW FACU FACU,FACW

Listera caurina Piper NI FACU FACU FACU FACU

Listera convallarioides (Sw.) Nutt. ex Ell. FACW FACW FACW FACW NI FACW FACW FAC* FACW FACU FACU,FACW

Listera cordata (L.) R. Br. ex Ait. f. FACW+ FACW FACW NI NI FACU FACU FAC* FACU FACU FACU,FACW+

Listera smallii Wieg. FACW FACW- FACW-,FACW

Lithachne pauciflora (Sw.) Beauv. ex Poir. FACU FACU

Lithophila muscoides Sw. FAC FAC

Litsea aestivalis (L.) Fern. OBL OBL OBL

Littorella uniflora (L.) Aschers. OBL OBL OBL

Lloydia serotina (L.) Reichenb. NI NI FACU* FACU- FACU FACU FACU-,FACU

Lobelia amoena Michx. OBL OBL OBL

Lobelia amoena var. glandulifera Gray FACW FACW FACW

Lobelia anatina F. Wimmer FACW+ FACW+

Lobelia appendiculata A. DC. NI FAC NI FAC- FAC-,FAC

Lobelia berlandieri A. DC. FAC FAC

Lobelia boykinii Torr. & Gray ex A. DC. OBL OBL OBL

Lobelia brevifolia Nutt. ex A. DC. FAC+ FAC+

Lobelia canbyi Gray OBL OBL OBL

Lobelia cardinalis L. FACW+ FACW+ OBL OBL FACW+ OBL OBL OBL FACW+,OBL

Lobelia cliffortiana L. FAC FAC FAC

Lobelia dortmanna L. OBL OBL OBL OBL

Lobelia dunbarii Rock FAC FAC

Lobelia dunnii Greene FACW- FACW-

Lobelia elongata Small OBL OBL OBL

Lobelia feayana Gray FACW- FACW-

Lobelia fenestralis Cav. FAC FACU FACU,FAC

Lobelia flaccidifolia Small OBL FACW+ FACW+,OBL

Lobelia floridana Chapman OBL FACW+ FACW+,OBL



North Central

North Plains

Central Plains




Lobelia gaudichaudii A. DC. FACW FACW

Lobelia glandulosa Walt. OBL OBL NI OBL

Lobelia homophylla F. Wimmer FAC NI FAC

Lobelia hypoleuca Hbd. FAC FAC

Lobelia inflata L. FACU FAC FACU- FAC FAC* FACU-,FAC

Lobelia kalmii L. OBL OBL OBL OBL NI OBL OBL

Lobelia niihauensis St. John NI

Lobelia nuttallii J.A. Schultes FACW FACW NI FACW

Lobelia oahuensis Rock FACW FACW

Lobelia paludosa Nutt. OBL OBL

Lobelia portoricensis (Vatke) Urban OBL OBL

Lobelia puberula Michx. FACW- FACW- FACW- FACW FACW-,FACW

Lobelia puberula var. pauciflora Bush OBL OBL OBL

Lobelia robusta var. portoricensis (A. DC.) McVaugh FACW FACW

Lobelia rotundifolia Juss. ex A. DC. OBL OBL

Lobelia siphilitica L. FACW+ OBL FACW+ OBL OBL OBL NI NI FACW+,OBL

Lobelia spicata Lam. FAC- FAC FAC FAC FAC FAC FAC-,FAC

Lobelia villosa (Rock) St. John & Hosaka FACW FACW

Loesneriella macrantha (Korth.) A.C. Smith FAC FAC

Lolium perenne L. FACU- FACU FACU FACU FACU FACU FACU FACU FAC* FAC* FACU FAC NI FACU-,FAC

Lomagramma cordipinna Holttum FACU FACU

Lomagramma guianensis (Aubl.) Ching FACW+ FACW+

Lomariopsis amydrophlebia (Slosson ex Maxon) Holttum OBL OBL

Lomariopsis kunzeana (Underwood) Holttum FAC* UPL UPL,FAC*

Lomatium bicolor (S. Wats.) Coult. & Rose UPL FACU- NI UPL UPL,FACU-

Lomatium bicolor var. leptocarpum (Torr. & Gray) Schlessman NI NI NI NI FACU* FACU*

Lomatium bradshawii (Rose ex Mathias) Mathias & Constance FACW FACW

Lomatium caruifolium (Hook. & Arn.) Coult. & Rose FACW* FACW*

Lomatium martindalei (Coult. & Rose) Coult. & Rose NI UPL UPL

Lomatogonium rotatum (L.) Fries ex Fern. OBL NI NI OBL OBL OBL OBL OBL

Lonchitis hirsuta L. OBL OBL

Lonchocarpus domingensis (Turp. ex Pers.) DC. FACW FACW

Lonchocarpus pentaphyllus (Poir.) Kunth ex DC. FAC FAC

Lonicera X bella Zabel FACU- UPL FACU- NI NI UPL,FACU-

Lonicera caerulea L. FACW+ FACW* NI FAC FAC* FAC*,FACW+

Lonicera caerulea var. cauriana (Fern.) Boivin NI NI NI NI NI FACW FACW



North Central

North Plains

Central Plains




Lonicera canadensis Bartr. ex Marsh. FACU FACU FACU FACU

Lonicera conjugialis Kellogg NI FAC FAC FAC

Lonicera dioica L. FACU FACU FACU FACU FACU FACU NI NI FACU

Lonicera hirsuta Eat. FAC FAC NI FAC

Lonicera hispidula var. vacillans (Benth.) Gray NI FACU* FACU*

Lonicera involucrata Banks ex Spreng. FACU NI NI FACU FAC FAC+ FAC FACU* FACU*,FAC+

Lonicera japonica Thunb. FAC- FAC- FACU FACU FAC FACU* FAC+ NI FAC NI FACU*,FAC+

Lonicera morrowii Gray FACU NI FACU* NI NI NI NI FACU*,FACU

Lonicera oblongifolia (Goldie) Hook. OBL OBL OBL

Lonicera sempervirens L. FACU FAC FAC- FACU FAC- FACU,FAC

Lonicera tatarica L. FACU FACU* FACU FACU NI NI UPL* UPL*,FACU

Lonicera utahensis S. Wats. NI FACU* FACU FAC FAC FACU*,FAC

Lophiola aurea Ker-Gawl. OBL OBL OBL

Lophochlaena californica var. californica Nees OBL OBL

Lophochlaena californica var. davyi (L. Benson) A.& D. Löve OBL OBL

Lophochlaena oregona (Chase) P.H. But OBL OBL

Lophochlaena refracta var. hooverianus (L. Benson) A.& D. Löve FACW FACW

Lophochlaena refracta var. refracta Gray OBL OBL OBL

Lophopyxis maingayi Hook. f. FAC FAC

Lophosoria quadripinnata (Gmel.) C. Christens. FACW FACW

Lotus aboriginus Jepson NI UPL UPL

Lotus alamosanus (Rose) Gentry OBL OBL

Lotus corniculatus L. FACU- FACU FAC- FACU FACU FAC FACU+ NI FAC FAC FACU-,FAC

Lotus formosissimus Greene FACW+ FACW FACW,FACW+

Lotus oblongifolius (Benth.) Greene OBL OBL NI OBL OBL

Lotus pedunculatus Cav. NI FACU* NI FACU*

Lotus pinnatus Hook. FACW FACW FACW

Lotus tenuis Waldst. & Kit. ex Willd. NI NI NI FACU* NI NI FACU*

Lotus unifoliolatus var. unifoliolatus (Hook.) Benth. NI NI NI NI NI NI NI NI NI UPL UPL

Lucya tetrandra (L.) K. Schum. FAC FAC

Ludwigia alata Ell. OBL OBL OBL

Ludwigia alternifolia L. FACW+ OBL OBL OBL OBL FACW+,OBL

Ludwigia arcuata Walt. OBL OBL

Ludwigia bonariensis (M. Micheli) Hara FACW+ FACW+

Ludwigia brevipes (B.H. Long ex Britt., A. Braun & Small) Eames OBL OBL OBL

Ludwigia curtissii Chapman FACW+ FACW+



North Central

North Plains

Central Plains




Ludwigia decurrens Walt. OBL OBL OBL OBL OBL OBL OBL

Ludwigia erecta (L.) Hara OBL OBL OBL

Ludwigia glandulosa Walt. OBL OBL OBL OBL OBL OBL

Ludwigia hirtella Raf. OBL FACW+ OBL FACW+,OBL

Ludwigia hyssopifolia (G. Don) Exell FACW+ FACW+

Ludwigia X lacustris Eames (pro sp.) OBL OBL

Ludwigia lanceolata Ell. OBL OBL

Ludwigia leptocarpa (Nutt.) Hara OBL OBL OBL OBL OBL OBL

Ludwigia linearis Walt. OBL OBL OBL OBL

Ludwigia linifolia Poir. OBL OBL

Ludwigia maritima Harper FACW FACW

Ludwigia microcarpa Michx. OBL OBL NI OBL

Ludwigia octovalvis (Jacq.) Raven OBL OBL OBL OBL OBL

Ludwigia palustris (L.) Ell. OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL

Ludwigia peploides (Kunth) Raven OBL OBL OBL OBL OBL OBL OBL OBL OBL

Ludwigia peruviana (L.) Hara OBL NI OBL OBL

Ludwigia pilosa Walt. OBL OBL OBL OBL

Ludwigia polycarpa Short & Peter OBL OBL OBL OBL NI OBL

Ludwigia repens J.R. Forst. NI OBL OBL OBL OBL OBL OBL OBL OBL

Ludwigia spathulata Torr. & Gray OBL OBL

Ludwigia sphaerocarpa Ell. OBL OBL OBL OBL OBL

Ludwigia suffruticosa Walt. OBL OBL

Ludwigia uruguayensis (Camb.) Hara OBL OBL OBL OBL OBL OBL OBL

Ludwigia virgata Michx. OBL OBL OBL

Luetkea pectinata (Pursh) Kuntze NI FACU- FACW* UPL UPL,FACW*

Lumnitzera littorea (Jack) Voigt OBL OBL

Lunania ekmanii Urban FACW FACW

Lupinus covillei Greene FACU* FACU*

Lupinus kingii S. Wats. NI NI FAC UPL NI UPL,FAC

Lupinus latifolius ssp. latifolius Lindl. ex J.G. Agardh NI NI FAC* FAC*

Lupinus latifolius ssp. parishii (C.P. Sm.) Kenney & D. Dunn NI NI

Lupinus latifolius ssp. viridifolius var. barbatus (Henderson) Munz NI FACW FACW

Lupinus nootkatensis Donn ex Sims NI FAC FAC

Lupinus padre-crowleyi C.P. Sm. FACU FACU

Lupinus polyphyllus Lindl. NI FACU* NI FACU- FAC+ FACW FAC FACU-,FACW

Lupinus prunophilus M.E. Jones FACU- FACU NI FACU-,FACU



North Central

North Plains

Central Plains




Lupinus rivularis Dougl. ex Lindl. FACU FAC FACU,FAC

Luziola bahiensis (Steud.) A.S. Hitchc. OBL OBL

Luziola fluitans (Michx.) Terrell & H. Robins. OBL OBL OBL

Luziola peruviana Juss. ex J.F. Gmel. OBL OBL

Luzula acuminata Raf. FAC FAC- FAC- NI FAC-,FAC

Luzula arctica ssp. arctica Blytt FAC FAC

Luzula arcuata (Wahlenb.) Sw. NI UPL FACU UPL,FACU

Luzula bulbosa (Wood) Smyth & Smyth FACU FACU FACU FACU FACU+ FACU,FACU+

Luzula confusa Lindeberg NI FAC FAC

Luzula congesta (Thuill.) Lej. NI NI NI FAC* FAC* FAC*

Luzula echinata (Small) F.J. Herm. FACU FAC FACU+ FAC FACU,FAC

Luzula hawaiiensis Buch. FACU FACU

Luzula multiflora (Ehrh.) Lej. FACU FACU- FACU FAC FACW* FAC FACU NI FACU FACU-,FACW*

Luzula parviflora (Ehrh.) Desv. FACU* FAC UPL NI FAC* FAC FAC- FAC FAC UPL,FAC

Luzula rufescens Fisch. ex E. Mey. FACW FACW

Luzula spicata (L.) DC. UPL* NI NI FACU+ FACU FACU FAC FACU UPL*,FAC

Luzula subcapitata (Rydb.) Harrington NI OBL OBL

Luzula subcongesta (S. Wats.) Jepson NI NI FACW FACW

Luzula wahlenbergii Rupr. NI OBL OBL

Lychnis flos-cuculi L. FACU NI NI FACU

Lycium barbarum L. NI NI NI NI NI NI NI NI UPL NI UPL

Lycium carolinianum Walt. FACW FACW FACW

Lycium sandwicense Gray FACU FACU

Lycopodiella alopecuroides (L.) Cranfill FACW+ OBL OBL FACW+,OBL

Lycopodiella appressa (Chapman) Cranfill FACW+ OBL FACW* NI OBL* FACW*,OBL

Lycopodiella caroliniana var. caroliniana (L.) Pichi Sermolli FACW+ OBL OBL OBL FACW+,OBL

Lycopodiella caroliniana var. meridionalis (Underwood & Lloyd) B. Pllg. OBL OBL

Lycopodiella cernua var. cernua (L.) Pichi Sermolli FACW FACW FAC* FAC*,FACW

Lycopodiella cernua var. curvata (Sw.) Kartesz & Gandhi OBL OBL

Lycopodiella X copelandii (Eig.) Cranfill FACW+ FACW+ FACW+

Lycopodiella inundata (L.) Holub OBL OBL NI OBL OBL OBL

Lycopodiella prostrata (Harper) Cranfill OBL OBL OBL

Lycopodium alpinum L. NI FAC FACU FACU,FAC

Lycopodium annotinum L. FAC FAC* FAC NI FAC- FACU* FACU FAC FAC FACU*,FAC

Lycopodium clavatum L. FAC FAC FAC NI FAC FAC FACU* FAC FACU*,FAC

Lycopodium complanatum L. FACU- FACU+ NI NI FAC FACU* FACU-,FAC



North Central

North Plains

Central Plains




Lycopodium dendroideum Michx. FACU FACU FAC FAC FACU FACU FACU,FAC

Lycopodium obscurum L. FACU FACU- FACU NI FACU-,FACU

Lycopodium venustulum Gaud. FACU* FACU*

Lycopus americanus Muhl. ex W. Bart. OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL

Lycopus amplectens Raf. OBL OBL OBL OBL

Lycopus asper Greene OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL

Lycopus cokeri Ahles OBL OBL

Lycopus europaeus L. OBL OBL OBL OBL

Lycopus rubellus Moench OBL OBL OBL OBL OBL NI OBL

Lycopus uniflorus Michx. OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL

Lycopus virginicus L. OBL OBL OBL OBL OBL OBL

Lygodium japonicum (Thunb.) Sw. FAC FACW NI NI FAC,FACW

Lygodium palmatum (Bernh.) Sw. FACW FACW- FACW* FACW-,FACW

Lyonia ferruginea (Walt.) Nutt. FAC- FAC-

Lyonia fruticosa (Michx.) G.S. Torr. FAC FAC

Lyonia ligustrina (L.) DC. FACW FACW FACW FACW

Lyonia lucida (Lam.) K. Koch FACW FACW FACW

Lyonia mariana (L.) D. Don FAC- FAC FACU- FAC FACU-,FAC

Lysichiton americanus Hultén & St. John OBL OBL OBL OBL

Lysimachia asperulifolia Poir. OBL OBL

Lysimachia ciliata L. FACW FACW- FACW FACW FACW FACW FACW FACW+ FACW+ NI FACW-,FACW+

Lysimachia daphnoides (Gray) Hbd. FACW FACW

Lysimachia filifolia Forbes FAC FAC

Lysimachia forbesii Rock FACU FACU

Lysimachia fraseri Duby NI FAC FAC* FAC*,FAC

Lysimachia glutinosa Rock NI

Lysimachia hillebrandii Hook. f. ex Gray FAC FAC

Lysimachia hybrida Michx. OBL OBL OBL OBL OBL OBL OBL NI OBL OBL

Lysimachia lanceolata Walt. FAC FAC FAC FAC FAC

Lysimachia loomisii Torr. OBL OBL

Lysimachia mauritiana Lam. FAC* FAC*

Lysimachia nummularia L. FACW- FACW+ FACW+ OBL NI FACW OBL FACW-,OBL

Lysimachia X producta (Gray) Fern. (pro sp.) FAC* FAC NI FAC*,FAC

Lysimachia punctata L. OBL OBL* NI OBL* OBL*,OBL

Lysimachia quadriflora Sims FACW+ OBL OBL FACW FACW FACW* FACW*,OBL

Lysimachia quadrifolia L. FACU- FACU UPL* UPL*,FACU



North Central

North Plains

Central Plains




Lysimachia radicans Hook. OBL OBL OBL FACW+ FACW+,OBL

Lysimachia remyi Hbd. FACW FACW

Lysimachia terrestris (L.) B.S.P. OBL OBL OBL OBL OBL OBL

Lysimachia thyrsiflora L. OBL OBL OBL OBL OBL OBL OBL OBL OBL

Lysimachia vulgaris L. FAC+ FACW- NI NI FAC+,FACW-

Lythrum alatum Pursh FACW+ FACW+ OBL OBL OBL OBL OBL NI FACW+,OBL

Lythrum californicum Torr. & Gray NI OBL OBL OBL OBL OBL OBL

Lythrum curtissii Fern. OBL OBL

Lythrum flagellare Shuttlw. ex Chapman OBL OBL

Lythrum hyssopifolia L. OBL OBL OBL FACW FACW,OBL

Lythrum lineare L. OBL OBL NI OBL

Lythrum maritimum Kunth FAC FAC

Lythrum ovalifolium Koehne FACW FACW

Lythrum portula (L.) D.A. Webber NI OBL OBL

Lythrum salicaria L. FACW+ OBL OBL OBL OBL OBL OBL FACW+ OBL FACW+,OBL

Lythrum tribracteatum Salzm. ex Spreng. NI NI OBL OBL

Macaranga mappa (L.) Muell.-Arg. FAC+ FAC+

Macbridea alba Chapman FACW+ FACW+

Macbridea caroliniana (Walt.) Blake OBL OBL

Machaeranthera arida B.L. Turner & Horne FAC* FACU* FACU FACU*,FAC*

Machaeranthera bigelovii var. bigelovii (Gray) Greene NI NI FACW* NI NI FACW*

Machaeranthera boltoniae (Greene) B.L. Turner & Horne FACW+ FACW+ FACW+

Machaeranthera canescens ssp. canescens var. incana (Lindl.) Gray UPL* NI FAC UPL*,FAC

Machaeranthera carnosa (Gray) Nesom OBL OBL FACW FACW,OBL

Machaeranthera phyllocephala (DC.) Shinners FACU NI FAC* NI FACU,FAC*

Machaerina angustifolia (Gaud.) T. Koyama FAC FAC

Machaerina falcata (Nees) Koyama FAC FAC

Machaerina mariscoides (Gaud.) J. Kern FACU FACU

Machaerina mariscoides ssp. colpodes (Gaud.) J. Kern FAC FAC

Machaerina mariscoides ssp. meyenii (Kunth) T. Koyama FAC FAC

Machaerina restioides (Sw.) Vahl OBL OBL

Machaerium lunatum (L. f.) Ducke OBL OBL

Machaerocarpus californicus (Torr. ex Benth.) Small OBL OBL OBL OBL

Maclura pomifera (Raf.) Schneid. UPL FACU FACU UPL UPL FACU* UPL UPL UPL NI UPL,FACU

Macranthera flammea (Bartr.) Pennell OBL OBL

Macroptilium lathyroides (L.) Urban FACU FACU UPL UPL,FACU



North Central

North Plains

Central Plains




Macrothelypteris torresiana (Gaud.) Ching OBL FACW- NI FACU FACU,OBL

Madia glomerata Hook. NI FACU FACU FACU FACU FACU FACU+ FACU- UPL UPL,FACU+

Madia yosemitana Parry ex Gray FACU FACU

Maesa carolinensis Mez FACU FACU

Magnolia ashei Weatherby FACU* FACU*

Magnolia fraseri Walt. FACU FACU+ FACU,FACU+

Magnolia grandiflora L. FACU FAC+ FAC- NI FACU,FAC+

Magnolia portoricensis Bello FAC FAC

Magnolia splendens Urban FACW FACW

Magnolia tripetala (L.) L. FACU FAC FAC- FAC FACU,FAC

Magnolia virginiana L. FACW+ FACW+ OBL FACW+,OBL

Mahonia aquifolium (Pursh) Nutt. NI NI NI NI NI UPL UPL

Maianthemum canadense Desf. FAC- FAC- FAC FACU NI FACU,FAC

Maianthemum dilatatum (Wood) A. Nels. & J.F. Macbr. FAC FAC* FAC FAC*,FAC

Maianthemum racemosum ssp. amplexicaule (Nutt.) LaFrankie NI NI NI NI FAC- FAC- FAC FAC FAC-,FAC

Maianthemum racemosum ssp. racemosum (L.) Link FACU- FACU FACU FAC FAC FAC- FACU- NI NI FACU-,FAC

Maianthemum stellatum (L.) Link FACW FAC+ FAC- FACU FAC FAC- FACU FAC FAC- FAC FAC FACU,FACW

Maianthemum trifolium (L.) Sloboda OBL OBL NI NI OBL

Malachra alceifolia Jacq. NI OBL NI OBL

Malacothamnus abbottii (Eastw.) Kearney FACW FACW

Malacothamnus davidsonii (B.L. Robins.) Greene FACU* FACU*

Malaxis brachypoda (Gray) Fern. FACW NI FACW NI NI FACW FACW FACW FACW

Malaxis paludosa (L.) Sw. OBL OBL OBL

Malaxis spicata Sw. FACW* OBL FACW FACW*,OBL

Malaxis unifolia Michx. FAC FAC+ FAC NI FAC FAC,FAC+

Malephora crocea (Jacq.) Schwant. FACU* FACU*

Malus fusca (Raf.) Schneid. FACW FAC FACW* FAC,FACW

Malva moschata L. UPL UPL NI NI NI NI UPL

Malvastrum coromandelianum (L.) Garcke NI FACU+ NI FACU- FACU FACU-,FACU+

Malvella leprosa (Ortega) Krapov. FACW FAC FACW FAC FACU FAC* FACU,FACW

Mammea americana L. NI FAC FAC

Mangifera indica L. UPL FAC- FACU UPL,FAC-

Manilkara bidentata (A. DC.) Chev. FAC+ FAC+

Manilkara jaimiqui ssp. emarginata (L.) Cronq. FACW* FACW*

Mapania flavinux Koyama OBL OBL

Mapania macrocephala (Gaud.) K. Schum. OBL OBL



North Central

North Plains

Central Plains




Mapania pandanophylla (F. Muell.) K. Schum. OBL OBL

Mapania parvibracteata (C.B. Clarke.) Koyama OBL OBL

Marah fabaceus (Naud.) Naud. ex Greene NI UPL UPL

Marattia mertensiana (Presl) C. Christens. FACU FACU

Marcgravia sintenisii Urban OBL OBL

Marcgravia trinitatis K. Presl FAC FAC

Margaritaria nobilis L. f. FAC- FAC-

Marlierea sintenisii Kiaersk. OBL OBL

Marrubium vulgare L. UPL FACU FAC FAC FAC FACU FAC* FACU FACU+ FACU FAC NI UPL,FAC

Marshallia caespitosa Nutt. ex DC. FACU UPL* FAC- FAC UPL*,FAC

Marshallia graminifolia (Walt.) Small OBL NI OBL

Marshallia graminifolia var. cynanthera (Ell.) Beadle & F.E. Boynt. FAC FAC* FAC*,FAC

Marshallia grandiflora Beadle & F.E. Boynt. FAC FAC FAC

Marshallia mohrii Beadle & F.E. Boynt. FACW FACW

Marshallia ramosa Beadle & F.E. Boynt. FACU FACU

Marshallia trinervia (Walt.) Trel. FACU- FACU- FACU-

Marsilea ancylopoda A. Braun NI OBL OBL

Marsilea macropoda Engelm. ex A. Braun OBL* OBL OBL*,OBL

Marsilea oligospora Goodding NI NI OBL OBL

Marsilea polycarpa Hook. & Grev. OBL OBL

Marsilea quadrifolia L. OBL NI OBL OBL

Marsilea vestita Hook. & Grev. OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL

Marsilea villosa Kaulfuss OBL OBL

Matelea gonocarpos (Walt.) Shinners FACW FACW FACW* FACW FACW FACW*,FACW

Matelea sintenisii (Schlechter) Woods. FACW FACW

Matelea variifolia (Schlechter) Woods. NI

Matricaria discoidea DC. FACU FACU- FACU FACU FACU UPL* FACU FACU FACU FACU FACU UPL*,FACU

Matricaria maritima L. UPL FAC FAC FAC FAC- NI FACU FAC UPL,FAC

Matricaria occidentalis Greene NI FACW* FACW*

Matricaria perforata Mérat UPL UPL UPL* FAC NI UPL NI UPL UPL*,FAC

Matteuccia struthiopteris (L.) Todaro FACW FACW FACW FACW FACW

Matthiola incana (L.) Ait. f. NI NI NI NI UPL UPL

Maxillaria crassifolia (Lindl.) Reichenb. f. OBL OBL

Mayaca fluviatilis Aubl. OBL OBL OBL OBL

Maytenus phyllanthoides Benth. FAC* NI FAC*,FACW

Keys FACW



North Central

North Plains

Central Plains




Mazus pumilus (Burm. f.) Steenis FACU- FAC UPL FAC* FACW UPL,FACW

Mecardonia acuminata (Walt.) Small OBL FACW OBL FACW FACW+ FACW,OBL

Mecardonia procumbens (P. Mill.) Small OBL FACW FACW+ FACW FACW* FACW*,OBL

Meconella oregana Nutt. NI NI

Mecranium latifolium (Cogn.) Skean FACW FACW

Medicago lupulina L. UPL FACU FAC- FACU FAC FAC FAC FAC FAC FAC FAC UPL UPL,FAC

Medicago polymorpha L. NI NI NI NI NI NI NI NI NI FACU- NI NI FACU-

Medicago praecox DC. NI UPL UPL

Medicago sativa L. NI NI NI NI NI NI NI NI NI UPL NI NI NI UPL

Megalastrum subincisa (Willd.) A.R. Sm. & R.C. Moran FACW FACW

Megalodonta beckii (Torr. ex Spreng.) Greene OBL OBL NI OBL OBL

Melaleuca quinquenervia (Cav.) Blake FAC NI FACU FACU,FAC

Melampodium perfoliatum (Cav.) Kunth FAC FAC

Melampyrum lineare Desr. FACU FACU FAC- NI FAC FACU,FAC

Melanthera angustifolia A. Rich. FACW- FACW-

Melanthera aspera (Jacq.) Steud. ex Small FACU* FAC FACU*,FAC

Melanthera nivea (L.) Small NI FACU FACU* NI FACU*,FACU

Melanthium latifolium Desr. FACU FACU- FACU-,FACU

Melanthium virginicum L. FACW+ OBL FACW+ FACW FACW+ FACW,OBL

Melastoma malabathricum L. FACU FACU

Melica bulbosa Geyer ex Porter & Coult. NI FACU UPL FACU FACU UPL,FACU

Melica spectabilis Scribn. NI NI UPL FAC FAC UPL,FAC

Melicope clusiifolia (Gray) T.G. Hartley & B.C. Stone FAC FAC

Melicope cruciata (Heller) T.G. Hartley & B.C. Stone FAC FAC

Melicope honoluluensis (St. John) T.G. Hartley & B.C. Stone NI

Melicope kavaiensis (Mann) T.G. Hartley & B.C. Stone FAC* FAC*

Melicope lydgatei (Hbd.) T.G. Hartley & B.C. Stone FAC FAC

Melicope orbicularis (Hbd.) T.G. Hartley & B.C. Stone FACU FACU

Melicope pseudoanisata (Rock) T.G. Hartley & B.C. Stone FAC FAC

Melicope volcanica (Gray) T.G. Hartley & B.C. Stone FAC* FAC*

Melicope waialealae (Wawra) T.G. Hartley & B.C. Stone FACW+ FACW+

Melicope wawraeana (Rock) T.G. Hartley & B.C. Stone FAC* FAC*

Melicytus samoensis (Christoph.) A.C. Sm. FACU FACU

Melilotus indicus (L.) All. FACU FACU- FACU FACU FACU+ FACU FACU FAC UPL UPL,FAC

Melilotus officinalis (L.) Lam. FACU- FACU- FACU FACU- FACU FACU FACU+ FACU FACU FACU FACU FACU UPL UPL,FACU+

Melinis minutiflora Beauv. NI UPL NI UPL



North Central

North Plains

Central Plains




Meliosma herbertii Rolfe FAC FAC

Meliosma obtusifolia (Bello) Krug & Urban FAC FAC

Melissa officinalis L. NI NI NI NI NI NI UPL UPL

Melochia corchorifolia L. NI FAC FACU* FACW- FACU*,FACW-

Melochia pyramidata L. FAC FAC- FAC- FAC-,FAC

Melochia spicata (L.) Fryxell NI FACW FACW

Melothria pendula L. FAC FACW- FAC- FAC FAC OBL FAC-,OBL

Menispermum canadense L. FACU* FACU* FAC* FAC FAC FACU* FACU*,FAC

Mentha aquatica L. FACW+ OBL OBL OBL FACW OBL OBL FACW,OBL

Mentha arvensis L. FACW FACW FACW+ FACW FACW FACW FACW FACW FACW- FACW FACW FACW-,FACW+

Mentha X gracilis Sole (pro sp.) FACW FAC OBL NI FAC,OBL

Mentha X piperita L. (pro sp.) FACW+ FACW OBL OBL FACW+ OBL FACW+ OBL FACW OBL FACW,OBL

Mentha pulegium L. NI OBL OBL NI OBL

Mentha spicata L. FACW+ FACW+ FACW+ FACW FACW FACW FACW* FACW OBL OBL FACW NI FACW*,OBL

Mentha suaveolens Ehrh. FACW FAC FACW FAC,FACW

Mentha X villosa Huds. (pro sp.) NI NI NI OBL NI OBL

Mentzelia leucophylla Brandeg. FAC* FAC*

Mentzelia oreophila J. Darl. NI NI UPL UPL

Menyanthes trifoliata L. OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL

Menziesia ferruginea Sm. NI NI FACU+ NI FACU* FACU*,FACU+

Menziesia pilosa (Michx. ex Lam.) Juss. ex Pers. FAC- FACU FACU,FAC-

Merremia dissecta (Jacq.) Hallier f. NI FACU FAC FACU- FACU-,FAC

Merrilliodendron megacarpum (Hemsl.) Sleumer FAC* FAC*

Mertensia bella Piper NI FACW FACW FACW

Mertensia ciliata (James ex Torr.) G. Don FACW NI FACW+ OBL FACW+ FACW+ FACW,OBL

Mertensia cusickii Piper NI NI UPL UPL

Mertensia franciscana Heller NI FACW OBL NI FACW,OBL

Mertensia maritima (L.) S.F. Gray FACW FAC FAC,FACW

Mertensia paniculata (Ait.) G. Don FAC NI FAC* FACW- FACU FACU,FACW-

Mertensia virginica (L.) Pers. ex Link FACW FAC+ FACW FACW FAC+,FACW

Meryta macrophylla (Rich) Seem. FACU FACU

Mesembryanthemum crystallinum L. NI NI FAC FAC

Mesembryanthemum nodiflorum L. NI NI FAC FAC

Metopium toxiferum (L.) Krug & Urban FAC FACU FACU,FAC

Metrosideros macropus Hook. & Arn. FAC FAC

Metrosideros polymorpha Gaud. FAC- FAC-



North Central

North Plains

Central Plains




Metrosideros polymorpha var. dieteri J.W. Dawson & Stemmermann FAC FAC

Metrosideros polymorpha var. glaberrima (Levl.) St. John FAC+ FAC+

Metrosideros polymorpha var. macrophylla (Rock) St. John FAC FAC

Metrosideros polymorpha var. newellii (Rock) St. John FACW FACW

Metrosideros polymorpha var. pseudorugosa Skottsberg OBL OBL

Metrosideros polymorpha var. pumila (Heller) Skottsberg OBL OBL

Metrosideros rugosa Gray FACW FACW

Metrosideros tremuloides (Heller) P. Knuth FAC FAC

Metrosideros waialealae (Rock) Rock FACW+ FACW+

Metroxylon amicarum (Wendl.) Becc. FACW* FACW*

Miconia affinis DC. FACW FACW

Miconia foveolata Cogn. OBL OBL

Miconia impetiolaris (Sw.) D. Don ex DC. FACU FACU

Miconia laevigata (L.) D. Don FACU FACU

Miconia mirabilis (Aubl.) L.O. Williams FACU FACU

Miconia pachyphylla Cogn. OBL OBL

Miconia prasina (Sw.) DC. FAC FAC

Miconia punctata (Desr.) D. Don ex DC. NI

Miconia pycnoneura Urban OBL OBL

Miconia racemosa (Aubl.) DC. FACW FACW

Miconia rubiginosa (Bonpl.) DC. FAC FAC

Miconia serrulata (DC.) Naud. FACU FACU

Miconia sintenisii Cogn. FACW FACW

Miconia subcorymbosa Britt. FACW FACW

Miconia tetrandra (Sw.) D. Don FAC+ FAC+

Miconia tetrastoma Naud. FACW FACW

Miconia thomasiana DC. FACW FACW

Micranthemum glomeratum (Chapman) Shinners OBL OBL

Micranthemum micranthemoides (Nutt.) Wettst. OBL OBL

Micranthemum umbrosum (J.F. Gmel.) Blake OBL OBL OBL OBL OBL

Micromeria brownei var. pilosiuscula Gray OBL OBL OBL

Micropholis garciniifolia Pierre OBL OBL

Micropholis guyanensis (A. DC.) Pierre FACW FACW

Micropus californicus var. californicus Fisch. & C.A. Mey. NI FACU* FACU*

Microseris borealis (Bong.) Schultz-Bip. OBL OBL OBL OBL

Microseris douglasii (DC.) Schultz-Bip. NI NI UPL UPL



North Central

North Plains

Central Plains




Microsorum scolopendria (Burm. f.) Copeland UPL NI FACU UPL,FACU

Microstegium vimineum (Trin.) A. Camus FAC FAC+ NI NI NI FAC,FAC+

Microtea debilis Sw. FAC FAC

Mikania congesta DC. FACW FACW

Mikania cordifolia (L. f.) Willd. FACW NI FAC FAC,FACW

Mikania fragilis Urban OBL OBL

Mikania odoratissima Urban FAC FAC

Mikania pachyphylla Urban OBL OBL

Mikania porosa Urban FAC+ FAC+

Mikania scandens (L.) Willd. FACW+ FACW+ OBL FACW+ FACU* FACU*,OBL

Mikania stevensiana Britt. FAC FAC

Mimetanthe pilosa (Benth.) Greene FACW OBL FACW FACW FACW,OBL

Mimosa casta L. OBL OBL

Mimosa diplotricha C. Wright ex Sauvalle FAC FAC

Mimosa malacophylla Gray FACW- FACW-

Mimosa pigra L. FACW* FAC FACW FAC,FACW

Mimosa pudica L. NI FACU FAC FACU FACU,FAC

Mimosa strigillosa Torr. & Gray FAC NI FAC FAC

Mimulus alatus Ait. OBL OBL OBL OBL OBL OBL

Mimulus alsinoides Dougl. ex Benth. OBL OBL OBL

Mimulus angustatus (Gray) Gray OBL* OBL*

Mimulus bicolor Hartw. ex Benth. FACU* FACU*

Mimulus breviflorus Piper NI NI FACW FACW* FACW*,FACW

Mimulus breweri (Greene) Coville NI NI NI FACU* FACU*

Mimulus cardinalis Dougl. ex Benth. OBL OBL FACW OBL FACW,OBL

Mimulus congdonii B.L. Robins. FAC FAC

Mimulus dentatus Nutt. ex Benth. OBL OBL OBL

Mimulus dentilobus B.L. Robins. & Fern. OBL OBL OBL

Mimulus douglasii (Benth.) Gray FACW FAC FAC,FACW

Mimulus eastwoodiae Rydb. FACW+ OBL FACW+,OBL

Mimulus exiguus Gray FACU FACU

Mimulus filicaulis S. Wats. FACW* FACW*

Mimulus floribundus Lindl. OBL OBL OBL FACW+ OBL OBL OBL FACW+,OBL

Mimulus glabratus Kunth OBL OBL OBL OBL OBL OBL OBL OBL OBL

Mimulus glaucescens Greene OBL* OBL*

Mimulus guttatus DC. OBL NI OBL OBL OBL OBL OBL FACW+ OBL FACW+,OBL



North Central

North Plains

Central Plains




Mimulus inconspicuus Gray FACU* FACU*

Mimulus laciniatus Gray FAC FAC

Mimulus latidens (Gray) Greene NI OBL OBL

Mimulus lewisii Pursh NI OBL FACW+ OBL FACW FACW,OBL

Mimulus moschatus Dougl. ex Lindl. OBL OBL OBL NI OBL OBL FACW+ OBL FACW+,OBL

Mimulus nanus Hook. & Arn. NI NI NI FACU* FACU*

Mimulus nudatus Curran ex Greene OBL* OBL*

Mimulus parishii Greene FACU FACU FACU

Mimulus primuloides Benth. NI OBL OBL FACW+ OBL FACW+,OBL

Mimulus pulchellus (E. Drew ex Greene) A.L. Grant FACW* FACW*

Mimulus pulsiferae Gray NI UPL UPL

Mimulus purpureus A.L. Grant FACU* FACU*

Mimulus pygmaeus A.L. Grant NI OBL OBL

Mimulus ringens L. OBL OBL OBL OBL OBL OBL OBL OBL OBL

Mimulus rubellus Gray NI FACW FACW FAC+ FAC FAC* FAC*,FACW

Mimulus suksdorfii Gray NI NI FACW FAC FACU FACW* FACU,FACW

Mimulus tilingii Regel NI NI OBL* OBL OBL OBL NI OBL*,OBL

Mimulus tricolor Hartw. ex Lindl. OBL OBL OBL

Mimulus washingtonensis Gandog. OBL OBL

Minuartia californica (Gray) Mattf. NI NI

Minuartia glabra (Michx.) Mattf. UPL FACW+ UPL,FACW+

Minuartia godfreyi (Shinners) McNeill FACW+ FACW+

Minuartia obtusiloba (Rydb.) House NI NI FACU- UPL FACU- FACU FACU UPL,FACU

Minuartia patula (Michx.) Mattf. UPL FAC- UPL FAC- FAC UPL,FAC

Minuartia rubella (Wahlenb.) Hiern UPL FAC NI NA* UPL FACU- UPL* FAC UPL*,FAC

Minuartia stricta (Sw.) Hiern NI NI NI NI FAC* FACW* NI FAC*,FACW*

Minuartia uniflora (Walt.) Mattf. FACW+ FACW+

Mirabilis linearis (Pursh) Heimerl NI NI NI NI NI NI NI NI NI UPL UPL

Mirabilis nyctaginea (Michx.) MacM. FACU- FACU UPL* UPL UPL UPL UPL FACU- FACU* UPL UPL*,FACU

Miscanthus sinensis Anderss. FACU UPL UPL NI NI FACW UPL,FACW

Mitchella repens L. FACU FACU+ FACU+ FAC FACU,FAC

Mitella breweri Gray NI FAC* FAC* FAC FAC*,FAC

Mitella caulescens Nutt. NI NI FAC FAC

Mitella diphylla L. FACU FACU- FACU+ FACU-,FACU+

Mitella diversifolia Greene NI FAC+ FACW* FAC+,FACW*

Mitella nuda L. FACW- FACW OBL FACW FAC FAC,OBL



North Central

North Plains

Central Plains




Mitella ovalis Greene OBL OBL OBL

Mitella pentandra Hook. NI NI NI FACW FAC* OBL FACW FAC*,OBL

Mitella stauropetala Piper FAC FAC FAC

Mitella trifida Graham NI NI NI FAC NI FAC

Mitreola petiolata (J.F. Gmel.) Torr. & Gray FACW+ FACW+ FACW FACW+ OBL FACW,OBL

Mitreola sessilifolia (J.F. Gmel.) G. Don FACW+ FACW+ FACW+ NI FACW+

Modiola caroliniana (L.) G. Don FACU FACU+ FAC* NI NI FACU FACU,FAC*

Moehringia lateriflora (L.) Fenzl FAC FACU* FACU UPL FAC* FAC FAC NI FAC UPL,FAC

Mollugo cerviana (L.) Ser. NI NI NI NI NI FAC FAC

Mollugo pentaphylla L. FAC FAC

Mollugo verticillata L. FAC FAC FAC FAC FAC FAC- FAC- FAC FAC FAC FAC FAC-,FAC

Momordica charantia L. NI UPL NI FAC FAC* UPL,FAC

Monanthochloe littoralis Engelm. OBL OBL OBL OBL

Monarda didyma L. FAC+ FAC UPL NI UPL,FAC+

Monarda fistulosa L. UPL FACU- FACU UPL FACU- FAC FAC+ FAC FACU UPL,FAC+

Monarda punctata L. UPL FAC UPL UPL UPL UPL NI UPL,FAC

Monardella linoides ssp. viminea (Greene) Abrams FACU* FACU*

Monardella odoratissima Benth. FACW UPL FACU- FACU UPL,FACW

Monardella villosa Benth. NI UPL UPL

Moneses uniflora ssp. reticulata (Nutt.) Calder & Taylor NI FACU NI FACU

Moneses uniflora ssp. uniflora (L.) Gray FAC NI FAC FAC FACU FACU FACU FACU* FACU*,FAC

Monochoria vaginalis (Burm. f.) K. Presl ex Kunth OBL OBL OBL

Monolepis nuttalliana (J.A. Schultes) Greene NI NI UPL FAC FACW FACU* FAC FACW FAC- FACW FAC UPL,FACW

Monolepis spathulata Gray UPL NI NI UPL

Monotropa uniflora L. FACU- FACU- FACU FACU FACU UPL* FACU FACU- UPL UPL*,FACU

Montia bostockii (Porsild) Welsh FACW FACW

Montia chamissoi (Ledeb. ex Spreng.) Greene NI OBL NI NI OBL OBL OBL OBL OBL OBL

Montia dichotoma (Nutt.) T.J. Howell NI FAC FAC FAC

Montia fontana L. OBL OBL OBL FACW OBL FACW,OBL

Montia fontana ssp. fontana L. FACW+ OBL OBL OBL OBL FACW+,OBL

Montia fontana ssp. variabilis S.M. Walters NI OBL OBL

Montia howellii S. Wats. FACW- FACW FACW-,FACW

Montia parvifolia (Moc. ex DC.) Greene NI FACW- FACW FACW FACW-,FACW

Montrichardia arborescens (L.) Schott OBL OBL

Morenhoutia hosokawae Tuyama FACU FACU

Morinda citrifolia L. UPL FACU- NI UPL,FACU-



North Central

North Plains

Central Plains




Morus alba L. UPL FACU- FAC FACU FAC FACU* NI UPL FACU* FACU* NI UPL,FAC

Morus microphylla Buckl. UPL FACU UPL,FACU

Morus rubra L. FACU FAC FAC- NI FACU FACU FACU,FAC

Mosla dianthera (Buch.-Ham. ex Roxb.) Maxim. FACU* NI FACU*

Mucuna urens (L.) Medik. FAC- NI FAC-

Muhlenbergia andina (Nutt.) A.S. Hitchc. NI NI FAC* FAC* FACW FAC FAC* FAC*,FACW

Muhlenbergia asperifolia (Nees & Meyen ex Trin.) Parodi FACW FACW FACW FACW FACW FACW FACW+ FACW FACW FACW,FACW+

Muhlenbergia californica Vasey FACW FACW

Muhlenbergia capillaris (Lam.) Trin. FACU- FAC* FACU FACU- FACU OBL FACU-,OBL

Florida Hyperthermic FACW

Muhlenbergia capillaris var. filipes (M.A. Curtis) Chapman ex Beal FAC FACU* FACU*,FAC

Muhlenbergia capillaris var. trichopodes (Ell.) Vasey FACW FACW- FACW FACW-,FACW

Muhlenbergia eludens C.G. Reeder FAC UPL* UPL*,FAC

Muhlenbergia filiformis (Thurb. ex S. Wats.) Rydb. FACW FACW OBL* FACW+ FACW- FACW FACW-,OBL*

Muhlenbergia frondosa (Poir.) Fern. FAC FAC+ FACW FACW FACW FACW NI FAC,FACW

Muhlenbergia glomerata (Willd.) Trin. FACW FACW+ FACW+ FACW+ FACW FACW FACW+ FACW,FACW+

Muhlenbergia lindheimeri A.S. Hitchc. FACW- FACW-

Muhlenbergia mexicana (L.) Trin. FACW FAC FACW FACW FACW FACW FACW FAC FAC FACW FAC,FACW

Muhlenbergia minutissima (Steud.) Swallen FAC- FAC* FAC- FACU- FAC FAC FAC* FACU-,FAC

Muhlenbergia montana (Nutt.) A.S. Hitchc. NI NI FACU UPL UPL UPL FACU UPL,FACU

Muhlenbergia pectinata C.O. Goodding OBL OBL

Muhlenbergia racemosa (Michx.) B.S.P. FAC FACW FACW FACW FACW FACW FAC* FACW FAC*,FACW

Muhlenbergia ramulosa (Kunth) Swallen NI FACU FACU- FACU-,FACU

Muhlenbergia reverchonii Vasey & Scribn. FAC FAC

Muhlenbergia richardsonis (Trin.) Rydb. FAC FAC+ FAC FAC FACU* FACU FAC* FAC* FACU*,FAC+

Muhlenbergia rigens (Benth.) A.S. Hitchc. FACU* FACU* UPL FACW UPL,FACW

Muhlenbergia schreberi J.F. Gmel. FAC FAC FAC NI FACU FAC- FACU* NI NI FACU*,FAC

Muhlenbergia sylvatica Torr. ex Gray FAC+ FACW FACW FACW FACW FACW- FACW* FAC+,FACW

Muhlenbergia torreyana (J.A. Schultes) A.S. Hitchc. FACW+ FACW+ FACW+

Muhlenbergia uniflora (Muhl.) Fern. OBL OBL OBL

Muhlenbergia utilis (Torr.) A.S. Hitchc. FACW+ OBL* FACW OBL* FACW,OBL*

Muhlenbergia wrightii Vasey ex Coult. NI FACU* FACU FACU FACU*,FACU

Muilla clevelandii (S. Wats.) Hoover FACU FACU

Murdannia keisak (Hassk.) Hand.-Maz. OBL OBL NI OBL

Murdannia nudiflora (L.) Brenan NI FAC NI FACW- FACW NI FAC,FACW

Musa acuminata Colla FACW FACW



North Central

North Plains

Central Plains




Musa X paradisiaca L. (pro sp.) UPL FAC FACU UPL,FAC

Myoporum laetum G. Forst. NI

Myosotis arvensis (L.) Hill UPL FAC+ FAC FAC UPL,FAC+

Myosotis asiatica (Vesterg.) Schischkin & Sergievskaja NI FACW FAC- FAC FAC-,FACW

Myosotis discolor Pers. UPL FAC- NI FACU* FACW NI* NI UPL,FACW

Myosotis laxa Lehm. OBL OBL OBL NI NI OBL* OBL OBL OBL*,OBL

Myosotis macrosperma Engelm. FAC FAC FAC FAC FAC FAC

Myosotis scorpioides L. OBL OBL OBL OBL NI OBL OBL FACW FACW* FAC FAC,OBL

Myosotis stricta Link ex Roemer & J.A. Schultes NI NI NI NI NI NI UPL UPL

Myosotis sylvatica Ehrh. ex Hoffmann UPL UPL UPL* FACW FACW FAC NI UPL*,FACW

Myosotis verna Nutt. FAC- FAC- FAC- FAC FAC- FAC FACU* FAC- NI* FACU*,FAC

Myosoton aquaticum (L.) Moench FACW FACW+ FAC+ NI FAC+,FACW+

Myosurus aristatus Benth. FACW* NI OBL OBL OBL FACW*,OBL

Myosurus cupulatus S. Wats. FACW* FAC FAC FAC,FACW*

Myosurus minimus L. FACW+ FACW- FACW OBL FACW FACW+ OBL OBL OBL OBL FACW-,OBL

Myosurus minimus ssp. apus var. sessiliflorus (Huth) Campbell NI FACW FACW

Myrcia citrifolia (Aubl.) Urban FACU FACU

Myrcia deflexa (Poir.) DC. FAC+ FAC+

Myrcia fallax (L.C. Rich.) DC. FACW FACW

Myrcia leptoclada DC. FAC+ FAC+

Myrcia margarettiae (Alain) Alain OBL OBL

Myrcia splendens (Sw.) DC. FAC FAC

Myrica californica Cham. FACW FAC+ FAC+,FACW

Myrica cerifera L. FAC FAC+ FAC FACW FAC,FACW

Myrica gale L. OBL OBL OBL OBL OBL OBL

Myrica hartwegii S. Wats. FAC+ FAC+

Myrica heterophylla Raf. FAC FACW FAC+ FAC,FACW

Myrica holdridgeana Lundell FAC FAC

Myrica inodora Bartr. OBL OBL

Myrica pensylvanica Loisel. FAC FAC FAC

Myriophyllum alterniflorum DC. OBL OBL OBL

Myriophyllum aquaticum (Vell.) Verdc. OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL

Myriophyllum farwellii Morong OBL OBL OBL

Myriophyllum heterophyllum Michx. OBL OBL OBL OBL OBL OBL OBL OBL

Myriophyllum hippuroides Nutt. ex Torr. & Gray OBL OBL NI OBL OBL OBL

Myriophyllum humile (Raf.) Morong OBL OBL OBL



North Central

North Plains

Central Plains




Myriophyllum laxum Shuttlw. ex Chapman OBL OBL

Myriophyllum pinnatum (Walt.) B.S.P. OBL OBL OBL OBL OBL OBL NI OBL

Myriophyllum quitense Kunth NI OBL NI OBL

Myriophyllum sibiricum Komarov NI NI OBL OBL NI NI OBL NI NI NI OBL

Myriophyllum spicatum L. OBL OBL OBL OBL OBL OBL OBL OBL OBL

Myriophyllum tenellum Bigelow OBL NI OBL OBL

Myriophyllum verticillatum L. OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL

Myrsine coriacea (Sw.) R. Br. ex Roemer & J.A. Schultes FACU FACU

Myrsine degeneri Hosaka FAC FAC

Myrsine denticulata (Wawra) Hosaka FACW FACW

Myrsine emarginata (Rock) Hosaka FAC FAC

Myrsine fernseei (Mez) Hosaka FACW FACW

Myrsine floridana A. DC. NI FAC FACW FAC,FACW

Myrsine fosbergii Hosaka FAC FAC

Myrsine helleri (O.& I. Deg.) St. John FACW FACW

Myrsine juddii Hosaka FACW FACW

Myrsine kauaiensis Hbd. FAC FAC

Myrsine lessertiana A. DC. FACU* FACU*

Myrsine petiolata Hosaka FAC FAC

Myrsine punctata (Levl.) Wilbur FACW FACW

Myrsine sandwicensis A. DC. FAC FAC

Myrsine vaccinioides W.L. Wagner, Herbst & Sohmer FACW+ FACW+

Myrsine wawraea (Mez) Hosaka FACW FACW

Najas filifolia Haynes OBL OBL

Najas flexilis (Willd.) Rostk. & Schmidt OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL

Najas gracillima (A. Braun ex Engelm.) Magnus OBL OBL OBL OBL OBL

Najas graminea Delile OBL OBL

Najas guadalupensis (Spreng.) Magnus OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL

Najas marina L. OBL OBL OBL OBL NI OBL OBL OBL OBL OBL OBL

Najas minor All. OBL OBL OBL NI OBL

Najas wrightiana A. Braun OBL OBL

Nama jamaicense L. UPL FACW- UPL* UPL*,FACW-

Nama stenocarpum Gray FACW FACW* FACW FACW*,FACW

Nama torynophyllum Greenm. FACW FACW

Napaea dioica L. FACW FACW- FACW-,FACW

Narthecium americanum Ker-Gawl. FACW+ FACW+ FACW+



North Central

North Plains

Central Plains




Narthecium californicum Baker OBL OBL OBL

Navarretia breweri (Gray) Greene NI NI NI FAC* FAC*

Navarretia cotulifolia (Benth.) Hook. & Arn. OBL OBL

Navarretia eriocephala Mason FAC FAC

Navarretia fossalis Moran OBL* OBL*

Navarretia heterandra Mason NI OBL OBL

Navarretia intertexta (Benth.) Hook. NI NI NI NI NI NI FAC* FACW FACW FAC*,FACW

Navarretia intertexta ssp. propinqua (Suksdorf) Day NI NI FAC FAC FAC FAC FAC FAC* FAC*,FAC

Navarretia jepsonii V. Bailey ex Jepson FACW FACW

Navarretia leucocephala Benth. NI NI NI NI NI OBL OBL OBL

Navarretia leucocephala ssp. minima (Nutt.) Day NI NI FAC FAC FAC FACW FAC,FACW

Navarretia mellita Greene FAC FAC

Navarretia myersii Allen & Day OBL OBL

Navarretia nigelliformis Greene FACW FACW

Navarretia peninsularis Greene FAC FAC

Navarretia prostrata (Gray) Greene OBL OBL

Navarretia squarrosa (Eschsch.) Hook. & Arn. NI NI NI FACU FACU

Navarretia subuligera Greene FACU FACU

Navarretia tagetina Greene NI FAC* FAC*

Nelsonia canescens (Lam.) Spreng. FACW FACW

Nelumbo lutea Willd. OBL OBL OBL OBL OBL OBL

Nelumbo nucifera Gaertn. OBL OBL OBL OBL

Nemastylis floridana Small OBL OBL

Nemopanthus mucronatus (L.) Loes. OBL OBL OBL

Nemophila aphylla (L.) Brummitt FACW FACW NI FAC FAC,FACW

Nemophila pedunculata Dougl. ex Benth. FACU* FAC FAC+ FACU*,FAC+

Neolaugeria resinosa (Vahl) Nicols. FACU FACU

Neonauclea forsteri (Seem.) Merr. FACU FACU

Neorudolphia volubilis (Willd.) Britt. FAC FAC

Neostapfia colusana (Burtt-Davy) Burtt-Davy OBL OBL

Nepenthes mirabilis (Lour.) Druce FAC FAC

Nepeta cataria L. FACU FACU+ FAC- FACU FACU FAC FACW- FACU FAC FACU- FAC FACU-,FACW-

Nephrolepis acutifolia (Desv.) Chr. FAC FAC

Nephrolepis biserrata (Sw.) Schott FACW- FACW NI FACW-,FACW

Nephrolepis cordifolia (L.) K. Presl NI NI FACU FACU

Nephrolepis exaltata (L.) Schott FACU+ FACU FAC FAC* FACU,FAC



North Central

North Plains

Central Plains




Nephrolepis rivularis (Vahl) Mett. ex Krug FACW FACW

Nepsera aquatica (Aubl.) Naud. FACW FACW

Neptunia lutea (Leavenworth) Benth. FACU FACU FACU

Neptunia plena (L.) Benth. FACW FACW FACW

Neptunia pubescens Benth. FAC NI FAC+ FAC,FAC+

Nertera granadensis (L. f.) Druce FACW FACW

Nesaea longipes Gray FACW+ NI FACW+

Neubergia celebica (Koord.) Leenhouts FACW FACW

Neurolaena lobata (L.) Cass. NI FAC NI FAC

Neyraudia reynaudiana (Kunth) Keng ex A.S. Hitchc. FAC FAC

Nicotiana attenuata Torr. ex S. Wats. NI NI NI FAC UPL FACU FAC UPL,FAC

Nicotiana glauca Graham NI FAC FAC FAC FAC* FAC UPL UPL,FAC

Nicotiana plumbaginifolia Viviani NI FAC- FAC FAC-,FAC

Nicotiana quadrivalvis var. bigelovii (Torr.) DeWolf NI FACU FACU FAC FACU,FAC

Nicotiana repanda Willd. ex Lehm. FAC FAC FAC

Nicotiana trigonophylla Dunal NI FACU FACU FACU FACU FACU

Nitrophila mohavensis Munz & Roos FACW OBL* FACW,OBL*

Nitrophila occidentalis (Moq.) S. Wats. FAC+ FACW FACW FACW FAC+,FACW

Nolina atopocarpa Bartlett FAC FAC

Nothocestrum longifolium Gray FACU FACU

Nothoscordum bivalve (L.) Britt. FACU FAC FACU FACU FACU- FACU-,FAC

Nuphar lutea (L.) Sm. OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL

Nymphaea amazonum Mart. & Zucc. OBL OBL

Nymphaea ampla (Salisb.) DC. OBL NI OBL OBL

Nymphaea capensis Thunb. OBL OBL

Nymphaea elegans Hook. OBL OBL OBL

Nymphaea jamesoniana Planch. OBL OBL

Nymphaea lotus L. OBL OBL* OBL*,OBL

Nymphaea mexicana Zucc. OBL OBL OBL OBL OBL

Nymphaea odorata Ait. OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL

Nymphaea rudgeana G.F.W. Mey. OBL OBL

Nymphaea tetragona Georgi OBL OBL OBL OBL OBL

Nymphoides aquatica (J.F. Gmel.) Kuntze OBL OBL OBL OBL

Nymphoides cordata (Ell.) Fern. OBL OBL OBL

Nymphoides indica (L.) Kuntze OBL OBL OBL

Nymphoides peltata (Gmel.) Kuntze OBL OBL OBL OBL NI NI OBL OBL



North Central

North Plains

Central Plains




Nypa fruticans Wurmb OBL OBL

Nyssa aquatica L. OBL OBL OBL OBL OBL

Nyssa biflora Walt. FACW+ OBL FACW+ OBL FACW+,OBL

Nyssa ogeche Bartr. ex Marsh. OBL OBL

Nyssa sylvatica Marsh. FAC FAC FAC NI FAC FAC

Ochroma pyramidale (Cav. ex Lam.) Urban FAC FAC

Ocotea floribunda (Sw.) Mez FAC FAC

Ocotea foeniculacea Mez FACW FACW

Ocotea globosa (Aubl.) Schlecht. & Cham. FACW FACW

Ocotea leucoxylon (Sw.) De Laness. FAC FAC

Ocotea membranacea (Sw.) Howard FACW FACW

Ocotea moschata (Pavón ex Meisn.) Mez FACW FACW

Ocotea nemodaphne Mez FACW FACW

Ocotea patens (Sw.) Nees FAC+ FAC+

Ocotea portoricensis Mez FACW FACW

Ocotea sintenisii (Mez) Alain FAC- FAC-

Ocotea spathulata Mez FACW FACW

Ocotea wrightii (Meisn.) Mez FACW FACW

Odontonema nitidum (Jacq.) Kuntze FACW FACW

Odontosoria scandens (Desv.) C. Christens. FACW FACW

Oemleria cerasiformis (Torr. & Gray ex Hook. & Arn.) Landon FACU UPL UPL,FACU

Oenanthe aquatica (L.) Poir. OBL OBL

Oenanthe sarmentosa K. Presl ex DC. OBL OBL OBL OBL

Oenothera biennis L. FACU- FACU FACU FACU FACU FACU+ NI FACU NI FACU-,FACU+

Oenothera canescens Torr. & Frém. FAC FACW- FAC FAC NI FAC,FACW-

Oenothera elata Kunth NI FACU-* FACW FAC FACW FACW FACW FACW- FACW FACU-*,FACW

Oenothera flava (A. Nels.) Garrett FACW FACW FACW* FACW FAC+ FACW* FAC+,FACW

Oenothera fruticosa L. FAC FACU FACU+ FAC- FACU,FAC

Oenothera jamesii Torr. & Gray FACW+ FACW+

Oenothera kunthiana (Spach) Munz FACU* FACU* FACU*

Oenothera laciniata Hill FACU- FACU FACU FACU FACU- FACU FAC* NI NI* NI FACU-,FAC*

Oenothera longissima Rydb. NI OBL OBL FACW FACW,OBL

Oenothera organensis Munz OBL OBL

Oenothera parviflora L. FACU- FACU FACU NI NI FACU-,FACU

Oenothera perennis L. FAC- FAC- FAC NI NI FAC-,FAC

Oenothera pilosella Raf. FAC FACU+ FAC- FAC FACU+,FAC



North Central

North Plains

Central Plains




Oenothera rhombipetala Nutt. ex Torr. & Gray FACU FACU- FACU FACU FACU FACU NI FACU-,FACU

Oenothera rosea L'Hér. ex Ait. FACW FACW NI* FACW

Oenothera tetraptera Cav. FAC+ FAC+

Oenothera texensis Raven & Parnell FACW FACW

Oenothera villosa Thunb. FAC FACU FAC FACU FAC FAC FACW* FAC FAC+ NI FACU,FACW*

Oenothera villosa ssp. strigosa (Rydb.) W. Dietr. & Raven NI NI NI NI NI FACU NI NI FACU

Oldenlandia boscii (DC.) Chapman FACW FACW- OBL* FACW FACW-,OBL*

Oldenlandia corymbosa L. FAC+ FAC FAC FAC FAC,FAC+

Oldenlandia herbacea (L.) Roxb. FAC FAC

Oldenlandia uniflora L. FACW FACW- FACW+ FACW FACW FACW-,FACW+

Oleandra articulata (Sw.) K. Presl FACW FACW

Olfersia cervina (L.) Kunze FAC+ FAC+

Olsynium douglasii var. douglasii (A. Dietr.) Bickn. FACU FACU FACU FACU

Olyra latifolia L. NI FACU FACU

Oncidium floridanum Ames FACW* FACW*

Onoclea sensibilis L. FACW FACW FACW FACW FACW FACW NI FACW

Ophioglossum californicum Prantl FAC* FAC*

Ophioglossum crotalophoroides Walt. FAC- UPL* FAC- UPL*,FAC-

Ophioglossum engelmannii Prantl FACU FACU FACU- FACU FACU FACW FACU-,FACW

Ophioglossum nudicaule L. f. FAC FAC NI FAC

Ophioglossum petiolatum Hook. NI FAC UPL* FAC+ NI UPL*,FAC+

Ophioglossum pusillum Raf. NI NI NI FACW FACW FACW FACW FACW FACW

Ophioglossum reticulatum L. OBL OBL

Ophioglossum vulgatum L. FACW FACW FACW FACW- FAC NI FAC,FACW

Oplismenus compositus (L.) Beauv. NI FAC* FAC*

Oplismenus hirtellus (L.) Beauv. FACU+ FACU+ FACU- FACU FACU-,FACU+

Oplopanax horridus Miq. FACW FAC+ NI FAC* FAC*,FACW

Opuntia stricta (Haw.) Haw. UPL FACU- FACU FAC UPL,FAC

Orbexilum pedunculatum var. pedunculatum (P. Mill.) Rydb. NI NI UPL UPL FACU* UPL,FACU*

Orbexilum pedunculatum var. psoralioides (Walt.) Isely FACU- FACU FACU-,FACU

Orbexilum simplex (Nutt. ex Torr. & Gray) Rydb. FAC FAC* FAC*,FAC

Orbexilum virgatum (Nutt.) Rydb. FACU FACU

Orcuttia californica Vasey OBL OBL

Orcuttia inaequalis Hoover OBL OBL

Orcuttia pilosa Hoover OBL OBL

Orcuttia tenuis A.S. Hitchc. OBL OBL



North Central

North Plains

Central Plains




Orcuttia viscida (Hoover) J. Reeder OBL OBL

Oreobolus furcatus Mann FACW+ FACW+

Ormosia krugii Urban FACW FACW

Ornithogalum umbellatum L. FACU FACU+ FAC- FACU FACU FACU* FACU NI FACU*,FAC-

Orobanche uniflora L. FACU FACU UPL UPL UPL UPL UPL FACU FACU NI NI UPL,FACU

Orogenia fusiformis S. Wats. NI FACW* FACW*

Orontium aquaticum L. OBL OBL OBL OBL

Orthilia secunda (L.) House FAC FAC+ FACU FACU FACU UPL FACU FACU* FACU* UPL,FAC+

Orthocarpus luteus Nutt. FACU FACU FACU FACU- FACU FACU- FACU FACU-,FACU

Oryza latifolia Desv. OBL OBL

Oryza sativa L. OBL OBL OBL OBL OBL OBL OBL OBL

Oryzopsis hymenoides (Roemer & J.A. Schultes) Ricker ex Piper FACU+ FACU FACU FACU+ FACU- UPL UPL UPL UPL,FACU+

Osmanthus americanus (L.) Benth. & Hook. f. ex Gray FAC FAC NI FAC

Osmorhiza berteroi DC. NI NI NI NI NI FACU- NI NI NI FACU-

Osmorhiza claytonii (Michx.) C.B. Clarke FACU- FAC- FACU- FACU FACU+ FACU-,FAC-

Osmorhiza longistylis (Torr.) DC. FACU FAC FACU- FACU FAC FACW FACW FACU FACU FACU-,FACW

Osmorhiza purpurea (Coult. & Rose) Suksdorf NI FAC+ FAC* FACU* FACU*,FAC+

Osmunda cinnamomea L. FACW FACW+ FACW NI FACW FACW OBL FACW,OBL

Osmunda claytoniana L. FAC FAC FAC+ FAC,FAC+

Osmunda regalis L. OBL OBL OBL OBL OBL OBL

Osmunda X ruggii R. Tryon NI

Ossaea krugiana Cogn. FACW FACW

Ossaea scabrosa (L.) DC. FACW FACW

Ostrya virginiana (P. Mill.) K. Koch FACU- FACU- FACU- FACU FACU FACU+ FACU-,FACU+

Ottelia alismoides (L.) Pers. OBL NI OBL OBL

Ouratea striata (v. Tiegh.) Urban FACW FACW

Oxalis corniculata L. FACU FACU FACU FACU FACU UPL FACU FACU FACU FACU FACU UPL,FACU

Oxalis dillenii Jacq. NI FACU* NI NI NI NI NI NI NI FACU*

Oxalis montana Raf. FAC- UPL FACU* UPL,FAC-

Oxalis oregana Nutt. NI FACU* FACU*

Oxalis stricta L. UPL UPL FACU FACU FACU FACU NI NI NI UPL,FACU

Oxalis trilliifolia Hook. FAC+ FAC* FAC*,FAC+

Oxandra lanceolata (Sw.) Baill. FAC FAC

Oxandra laurifolia (Sw.) A. Rich. FAC FAC



North Central

North Plains

Central Plains




Oxydendrum arboreum (L.) DC. UPL FACU* FACU* FACU* UPL*,FACU

Lower Coastal Plain FACU

Mountains UPL*

Oxypolis canbyi (Coult. & Rose) Fern. OBL OBL OBL

Oxypolis fendleri (Gray) Heller NI FACW OBL FACW FACW,OBL

Oxypolis filiformis (Walt.) Britt. FACW+ FACW FACW,FACW+

Oxypolis greenmanii Mathias & Constance OBL OBL

Oxypolis occidentalis Coult. & Rose OBL OBL OBL

Oxypolis rigidior (L.) Raf. OBL OBL OBL OBL OBL

Oxypolis ternata (Nutt.) Heller FACW OBL NI FACW,OBL

Oxyria digyna (L.) Hill FACW NI NI FAC- UPL FACU- FACW UPL UPL,FACW

Oxystylis lutea Torr. & Frém. NI UPL UPL

Oxytheca watsonii Torr. & Gray UPL FACW* UPL,FACW*

Oxytropis deflexa (Pallas) DC. FACU FAC FAC FACU FACU FACW* FACU FACU,FACW*

Oxytropis deflexa var. sericea Torr. & Gray NI NI NI NI NI FAC* NI FAC*

Oxytropis lambertii Pursh FACU- UPL FACU FACU UPL UPL UPL UPL,FACU

Oxytropis oreophila Gray FACU* FACU- FACU FACU-,FACU

Oxytropis parryi Gray NI NI FACU* UPL FACU FACU UPL,FACU

Oxytropis splendens Dougl. ex Hook. FACU- FACU NI FAC* FAC NI UPL UPL,FAC

Paederia foetida L. FACU NI UPL UPL,FACU

Palicourea alpina (Sw.) DC. FACW FACW

Palicourea crocea (Sw.) J.A. Schultes FAC+ FAC+

Palicourea guianensis Aubl. FACW FACW

Pancratium declinatum Jacq. UPL* UPL*

Pancratium littorale Jacq. FACU FACU

Pandanus aimiriikensis Mart. FACW FACW

Pandanus cominsii Hemsl. FACW FACW

Pandanus dubius Spreng. FAC* FAC*

Pandanus japensis Mart. FACW FACW

Pandanus kanehirae Mart. OBL OBL

Pandanus macrojeanneretia Mart. FACW FACW

Pandanus palawensis Schltr. FACW FACW

Pandanus patina Mart. FACU FACU

Pandanus tectorius Parkinson ex Zucc. FACW FAC* FAC*,FACW

Pandanus tomilensis Kanehira FACW FACW



North Central

North Plains

Central Plains




Panicum abscissum Swallen FACW FACW

Panicum amarum Ell. FACU- FAC FACU- FACU-,FAC

Panicum anceps Michx. FAC FAC- FACW FAC FAC+ FAC-,FACW

Panicum brachyanthum Steud. FAC FACU+ FACU+,FAC

Panicum capillare L. FAC- FAC FAC FAC FAC FAC FAC FACU FACU+ FAC NI FACU,FAC

Panicum dichotomiflorum Michx. FACW- FACW FACW- FAC FAC FACW FAC FACW FACW FACW OBL* FACU* FACU*,OBL*

Panicum dichotomiflorum var. dichotomiflorum Michx. NI OBL NI NI NI NI NI NI NI NI NI OBL

Panicum diffusum Sw. NI FAC FAC FAC

Panicum elephantipes Nees OBL OBL

Panicum flexile (Gattinger) Scribn. FACU FAC+ FACW+ FAC FACW FACW- FAC* FACU,FACW+

Panicum gattingeri Nash FAC FAC FAC NI FAC

Panicum ghiesbreghtii Fourn. NI FACW FACW

Panicum glutinosum Sw. FACW FACW

Panicum hallii Vasey FACU- FACU FACU FACU UPL UPL,FACU

Panicum hemitomon J.A. Schultes FACW+ OBL OBL FACW+,OBL

Panicum hillmanii Chase NI FAC- FACU NI FACU FACU,FAC-

Panicum hirstii Swallen OBL NI OBL

Panicum laxum Sw. FACW FACW

Panicum maximum Jacq. FAC- FAC- NI FACU- FACU FACU-,FAC-

Panicum obtusum Kunth FACW FACW FACW FAC+ FAC FACU FACU,FACW

Panicum paniculatum L. FAC FAC

Panicum parvifolium Lam. OBL OBL

Panicum philadelphicum Bernh. ex Trin. FAC- NI FACW NI NI FAC-,FACW

Panicum pilcomayense Hack. FACW- FACW-

Panicum repens L. FACW- FAC+ FAC+ FAC+,FACW-

Panicum rigidulum Bosc ex Nees FACW+ FACW FACW FAC FACW NI FACW OBL FAC,OBL

Panicum rigidulum var. pubescens (Vasey) Lelong OBL OBL OBL OBL OBL

Panicum schiffneri Hack. FAC FAC

Panicum stenodes Griseb. OBL OBL

Panicum stevensianum A.S. Hitchc. & Chase FACW FACW

Panicum tenerum Bey. ex Trin. FACW FACW- OBL FACW-,OBL

Panicum trichanthum Nees FACU FACU

Panicum verrucosum Muhl. FACW FACW FACW FACW- FACW-,FACW

Panicum virgatum L. FAC FAC+ FAC+ FAC FAC FAC FAC+ FAC FACW UPL UPL,FACW

Papaver lapponicum (Tolm.) Nordh. NI NI UPL UPL UPL UPL* UPL*,UPL

Papaver macounii Greene FACU FACU



North Central

North Plains

Central Plains




Papaver walpolei Porsild FACU FACU

Pappophorum pappiferum (Lam.) Kuntze FACU FACU

Parapholis incurva (L.) C.E. Hubbard OBL FAC NI FACW FACW OBL FAC,OBL

Parapholis strigosa (Dumort.) C.E. Hubbard OBL OBL

Parathesis crenulata (Vent.) Hook. f. NI FACW FACW

Parentucellia viscosa (L.) Caruel NI NI FAC- FAC NI FAC-,FAC

Parietaria floridana Nutt. NI FAC- FACU* FACU* FACU*,FAC-

Parietaria hespera Hinton NI NI NI

Parietaria pensylvanica Muhl. ex Willd. FACU- FAC- FACU FACU FAC FAC FACW- FACU FACU FAC* FACU-,FACW-

Parietaria praetermissa Hinton FAC- FAC-

Parkinsonia aculeata L. FAC FACW- FAC- FAC* FACW* FACW- NI FAC-,FACW*

Parkinsonia florida (Benth. ex Gray) S. Wats. NI NI UPL UPL

Parnassia asarifolia Vent. OBL OBL OBL OBL

Parnassia californica (Gray) Greene NI NI OBL OBL

Parnassia caroliniana Michx. OBL NI OBL

Parnassia cirrata Piper OBL OBL

Parnassia fimbriata Koenig NI NI OBL OBL OBL OBL FACW FACW,OBL

Parnassia glauca Raf. OBL OBL OBL OBL

Parnassia grandifolia DC. OBL OBL OBL OBL OBL

Parnassia kotzebuei Cham. ex Spreng. NI NI OBL OBL FACW FACW,OBL

Parnassia palustris L. OBL OBL OBL OBL FACW FACW,OBL

Parnassia parviflora DC. OBL OBL NI OBL OBL OBL OBL OBL

Paronychia ahartii Ertter FACU* FACU*

Parthenium hysterophorus L. NI NI NI NI NI FAC NI FAC

Parthenocissus quinquefolia (L.) Planch. FACU FAC FAC- FAC FAC FAC FAC NI NI NI FACU,FAC

Parthenocissus vitacea (Knerr) A.S. Hitchc. FACU FACU+ FACU FACU FAC FAC FACW- FACU NI FAC FACU,FACW-

Pascopyrum smithii (Rydb.) A. Löve UPL FACU FACU+ FACU FACU FAC- FAC- FACU FACU FAC- UPL UPL,FAC-

Paspalidium geminatum (Forsk.) Stapf OBL OBL OBL OBL OBL

Paspalum acuminatum Raddi OBL OBL OBL

Paspalum bifidum (Bertol.) Nash FACW FACW NI FAC+ FAC+,FACW

Paspalum blodgettii Chapman FAC+ UPL UPL,FAC+

Paspalum boscianum Fluegge FACW FACW FACW- UPL UPL,FACW

Paspalum caespitosum Fluegge FAC UPL UPL,FAC

Paspalum conjugatum Berg. FAC FAC FAC FAC+ FAC,FAC+

Paspalum decumbens Sw. FAC FAC

Paspalum densum Poir. OBL OBL



North Central

North Plains

Central Plains




Paspalum dilatatum Poir. FAC+ FAC+ NI FAC FAC NI NI FAC FAC FACU FACU,FAC+

Paspalum dissectum (L.) L. OBL OBL OBL OBL OBL

Paspalum distichum L. FACW+ OBL OBL FACW+ OBL* OBL FACW OBL OBL FACW+ FACW,OBL

Paspalum fasciculatum Willd. ex Fluegge FACW FACW

Paspalum fimbriatum Kunth FAC FAC FAC FAC

Paspalum floridanum Michx. FACW FACW FACW FACW FACW- FACW-,FACW

Paspalum fluitans (Ell.) Kunth OBL OBL OBL OBL OBL OBL

Paspalum hartwegianum Fourn. FACW+ FACW+

Paspalum hydrophylum Henr. OBL OBL

Paspalum laeve Michx. FAC+ FACW- FACW- FAC FACW- FAC,FACW-

Paspalum lividum Trin. OBL OBL* OBL*,OBL

Paspalum millegrana Schrad. FACW FACW

Paspalum monostachyum Vasey FACW FACW+ FACW,FACW+

Paspalum notatum Fluegge FACU+ FACU+ NI FAC NI FAC FACU+,FAC

Paspalum orbiculatum Poir. NI OBL OBL

Paspalum paniculatum L. NI FAC NI FAC

Paspalum plicatulum Michx. FAC FAC FAC- FAC-,FAC

Paspalum praecox Walt. FACW+ OBL OBL FACW* FACW*,OBL

Paspalum pubiflorum Rupr. ex Fourn. FAC FACW FACW FAC FACW NI FAC,FACW

Paspalum racemosum Lam. NI NI

Paspalum scrobiculatum L. NI NI FACW* FAC* FAC*,FACW*

Paspalum secans A.S. Hitchc. & Chase FACW FACW

Paspalum setaceum Michx. FACU+ FAC FAC NI FAC FAC UPL* FACU UPL*,FAC

Paspalum urvillei Steud. FAC FAC NI NI FAC NI* FAC FAC FAC

Paspalum vaginatum Sw. NI OBL FACW* FACW FACW+ FACW*,OBL

Paspalum virgatum L. FACW FACW FACW- FACW-,FACW

Passiflora edulis Sims FACU FACU UPL UPL,FACU

Passiflora foetida L. NI NI FAC* FAC* FACU FACU* FACU*,FAC*

Passiflora maliformis L. FAC- FAC-

Passiflora rubra L. FAC FAC

Passiflora serratodigitata L. FACW FACW

Passiflora sexflora Juss. NI UPL UPL

Passiflora tulae Urban FACU FACU

Paullinia pinnata L. FAC+ FAC+

Paulownia tomentosa (Thunb.) Sieb. & Zucc. ex Steud. UPL FACU UPL UPL UPL,FACU

Pavonia fruticosa (P. Mill.) Fawcett & Rendle FAC FAC



North Central

North Plains

Central Plains




Pavonia paludicola D.H. Nicols. OBL OBL OBL

Pavonia paniculata Cav. FACW* FACW*

Pecluma pectinata (L.) M.G. Price NI UPL UPL

Pedicularis attollens Gray FACW OBL FACW FACW,OBL

Pedicularis canadensis L. FACU FACU+ FACU+ FACU FACU FAC+ FAC FAC FACU,FAC+

Pedicularis capitata M.F. Adams FACU FACU

Pedicularis chamissonis Stev. OBL OBL

Pedicularis contorta Benth. NI FACU FACU FAC* FACU,FAC*

Pedicularis crenulata Benth. NI NI NI OBL FACW FACW FACW,OBL

Pedicularis furbishiae S. Wats. FACW+ FACW+

Pedicularis groenlandica Retz. NI NI OBL OBL OBL OBL OBL

Pedicularis labradorica Wirsing FACW FACW

Pedicularis lanata Cham. & Schlecht. FAC FAC

Pedicularis lanceolata Michx. FACW FACW FACW+ OBL FACW+ FACW,OBL

Pedicularis langsdorfii Fisch. ex Stev. FACW FACW

Pedicularis lapponica L. FAC* FAC*

Pedicularis parryi Gray NI NI FAC+ FACU- FACU FACU-,FAC+

Pedicularis parviflora Sm. ex Rees NI FACW FACW

Pedicularis parviflora ssp. pennellii (Hultén) Hultén FAC FAC

Pedicularis procera Gray FAC NI FACU FACU NI FACU,FAC

Pedicularis sudetica Willd. NI FACW FACW FACW FACW

Pedicularis verticillata L. FAC FAC

Peltandra sagittifolia (Michx.) Morong OBL OBL OBL

Peltandra virginica (L.) Schott OBL OBL OBL OBL NI OBL OBL

Pemphis acidula J.R. & G. Forst. FAC* FAC*

Pennisetum clandestinum Hochst. ex Chiov. FACU+ NI FACU- FACU-,FACU+

Pennisetum purpureum Schumacher FACU+ NI FAC FACU FACU,FAC

Penstemon alluviorum Pennell FACW FACW FACW+ FACW,FACW+

Penstemon attenuatus Dougl. ex Lindl. NI FACU* FACU*

Penstemon australis ssp. laxiflorus (Pennell) Bennett FAC- FAC* FAC-,FAC*

Penstemon calycosus Small UPL FACU FACU UPL,FACU

Penstemon cinicola Keck NI UPL UPL

Penstemon digitalis Nutt. ex Sims FAC FAC FAC- FAC FAC- FACW- FAC-,FACW-

Penstemon globosus (Piper) Pennell & Keck FAC+ FAC+

Penstemon gracilis Nutt. UPL FACU FACU- UPL* FACU UPL UPL*,FACU

Penstemon heterodoxus Gray NI FACU FACU



North Central

North Plains

Central Plains




Penstemon laevigatus Ait. FACU FAC FACU,FAC

Penstemon lyallii (Gray) Gray NI FACU FACU

Penstemon pallidus Small FACU FACU UPL FACU UPL,FACU

Penstemon procerus Dougl. ex Graham UPL NI FAC* NI FAC* NI UPL,FAC*

Penstemon pseudoputus (Crosswhite) N. Holmgren NI FACU FACU

Penstemon rydbergii A. Nels. NI FAC FAC FACU FAC FACU,FAC

Penstemon serrulatus Menzies ex Sm. FACU* FACW* FACU*,FACW*

Penstemon tenuis Small FACW+ FACW+ FACW+

Penstemon virgatus Gray FACU FACU

Penstemon whippleanus Gray NI NI FACU+ FACU FACU- FACU-,FACU+

Pentalinon luteum (L.) B.F. Hansen & Wunderlin OBL FACU FACU,OBL

Pentaphylloides floribunda (Pursh) A. Löve FACW NI FACW FACW NI FACW- FACW FAC- FACW FAC FAC-,FACW

Penthorum sedoides L. OBL OBL OBL OBL OBL OBL NI OBL

Pentodon pentandrus (K. Schum.) Vatke OBL OBL OBL

Peperomia alata Ruiz & Pavón NI FACW FACW

Peperomia cogniauxii Urban FACW FACW

Peperomia cookiana C. DC. FAC* FAC*

Peperomia distachya (L.) A. Dietr. FACW FACW

Peperomia eekana C. DC. FACW FACW

Peperomia ellipticibacca C. DC. FAC FAC

Peperomia emarginella (Sw. ex Wikstr.) C. DC. NI*

Peperomia glabella (Sw.) A. Dietr. NI FACW FACW

Peperomia globulanthera C. DC. FAC FAC

Peperomia hernandiifolia (Vahl) A. Dietr. FACU FACU

Peperomia hesperomannii Wawra FACW FACW

Peperomia kipahuluensis St. John & C. Lamoureux FAC* FAC*

Peperomia ligustrina Hbd. FAC FAC

Peperomia macraeana C. DC. FAC* FAC*

Peperomia maculosa (L.) Hook. FACW FACW

Peperomia membranacea Hook. & Arn. FAC FAC

Peperomia pellucida (L.) Kunth NI NI NI FAC* FAC*

Peperomia quadrifolia (L.) Kunth FACW FACW

Peperomia robustior Urban FACW FACW

Peperomia sandwicensis Miq. FAC FAC

Peperomia serpens (Sw.) Loud. NI*

Peperomia sintenisii C. DC. FACU FACU



North Central

North Plains

Central Plains




Peperomia tenella (Sw.) A. Dietr. FACW FACW

Peperomia tetraphylla (G. Forst.) Hook. & Arn. FACW NI FACW

Peperomia urocarpa Fisch. & C.A. Mey. FACW FACW

Peperomia yabucoana Urban & C. DC. FACW FACW

Pericopsis mooniana (Thwaites) Thwaites FACW FACW

Perideridia bolanderi (Gray) A. Nels. & J.F. Macbr. NI NI UPL UPL

Perideridia californica (Torr.) A. Nels. & J.F. Macbr. FACW FACW

Perideridia gairdneri (Hook. & Arn.) Mathias FACU NI FACW FAC FAC* FACW FACU,FACW

Perideridia howellii (Coult. & Rose) Mathias NI FACW FACW

Perideridia parishii (Coult. & Rose) A. Nels. & J.F. Macbr. FACW FAC FACW FAC,FACW

Perilla frutescens (L.) Britt. FACU+ FAC FAC FAC FAC+ FACU+,FAC+

Perrottetia sandwicensis Gray FACU FACU

Persea borbonia (L.) Spreng. FACW FACW FACW FACW

Persea krugii Mez FACW FACW

Persea urbaniana Mez FACW FACW

Petasites frigidus (L.) Fries FACW FACW FAC FACW- FACW- FACW FAC,FACW

Petasites frigidus var. palmatus (Ait.) Cronq. FACW FACW FACW+ FAC FACW* FACW FAC,FACW+

Petasites sagittatus (Banks ex Pursh) Gray OBL FACW+ NI OBL FACW+ FACW FACW,OBL

Phacelia amabilis Constance NI NI FACU FACU

Phacelia cinerea Eastw. ex J.F. Macbr. OBL OBL

Phacelia heterophylla Pursh NI NI NI FAC UPL FACU FACU UPL,FAC

Phacelia inundata J.T. Howell FACW NI FAC* FAC*,FACW

Phacelia inyoensis (J.F. Macbr.) J.T. Howell NI*

Phacelia laxa Small FAC- FAC-

Phacelia lemmonii Gray NI NI FACU* FACU*

Phacelia orogenes Brand FACU FACU

Phacelia parishii Gray NI FACU* FACU*

Phacelia procera Gray NI FAC+ FAC* FAC*,FAC+

Phacelia ramosissima var. subglabra M.E. Peck NI NI FACU FACU

Phacelia ranunculacea (Nutt.) Constance FACW FACW FACW FACW

Phacelia tetramera J.T. Howell FAC NI FACW* FAC,FACW*

Phacelia viscida (Benth. ex Lindl.) Torr. NI UPL* UPL*

Phaius tankarvilleae (Banks ex L'Hér.) Blume FACU FACU

Phalacroseris bolanderi Gray OBL OBL

Phalaris angusta Nees ex Trin. FACW+ FACW+ FACW NI FACW FACW,FACW+

Phalaris aquatica L. NI NI FACU* FACU* FACU* FAC NI FACU*,FAC



North Central

North Plains

Central Plains




Phalaris arundinacea L. FACW OBL FACW+ FACW+ FACW+ FACW+ OBL FACW+ FACW OBL OBL FACW,OBL

Phalaris brachystachys Link NI NI NI NI FACW NI FACW

Phalaris californica Hook. & Arn. FAC FAC FAC

Phalaris canariensis L. FACU FACU+ FACU FACU FACU FACU FACU FACU FACU FACU UPL NI UPL,FACU+

Phalaris caroliniana Walt. FACW FACW FACW FACW FACW FACW FACW FACW FACW FACW

Phalaris lemmonii Vasey FACW FACW

Phalaris paradoxa L. NI NI NI NI FAC* NI FAC*

Phanopyrum gymnocarpon (Ell.) Nash NI OBL NI OBL OBL

Pharus glaber Kunth FAC FAC

Pharus latifolius L. FAC FAC

Pharus parvifolius Nash NI FAC FAC

Phegopteris connectilis (Michx.) Watt FACU* FAC* NI NI NI FACU* FACU*,FAC*

Phegopteris hexagonoptera (Michx.) Fée FAC FACU+ FAC- FACU- FAC FACU-,FAC

Philadelphus lewisii Pursh NI NI UPL UPL

Philodendron consanguineum Schott FACW FACW

Philodendron giganteum Schott FAC FAC

Philodendron lingulatum (L.) K. Koch FACW FACW

Philodendron marginatum Urban FACW FACW

Philodendron scandens ssp. oxycardium (Schott) Bunting FACW FACW

Philydrum lanuginosum Banks ex Gaertn. OBL OBL

Phippsia algida (Phipps) R. Br. NI OBL OBL OBL OBL

Phleum alpinum L. FACW FACW FACW NI FACW- FAC FAC+ FACW FACU FACU,FACW

Phleum pratense L. FACU FACU FACU FACU FACU FACU FACU FACU FAC- FAC FACU NI FACU,FAC

Phlox carolina L. FACU FACU FACW* FACU* NI FACU*,FACW*

Phlox divaricata L. FACU FACU- FACU UPL UPL FACU- UPL,FACU

Phlox floridana Benth. FACU- FACU-

Phlox glaberrima L. FAC FAC+ FACW FAC FAC,FACW

Phlox gracilis ssp. gracilis (Hook.) Greene UPL* UPL UPL FAC- UPL FACU FACU* UPL* UPL*,FAC-

Phlox idahonis Wherry FACW* FACW*

Phlox kelseyi Britt. FAC FACW* FACW* FAC,FACW*

Phlox maculata L. FACW FAC FACW+ FAC,FACW+

Phlox paniculata L. FACU FACU FACU FACU FACU* NI FACU*,FACU

Phlox pilosa L. FACU FACU+ FAC- FACU FAC FAC FACU,FAC

Pholistoma membranaceum (Benth.) Constance NI UPL UPL

Phormium tenax J.R. & G. Forst. FAC FAC

Phragmites australis (Cav.) Trin. ex Steud. FACW FACW FACW+ FACW FACW FACW FACW+ FACW+ FACW+ FACW OBL FACW,OBL



North Central

North Plains

Central Plains




Phragmites karka (Retz.) Trin. ex Steud. OBL OBL

Phryma leptostachya L. FACU- FACU UPL* FAC FACU FACU* UPL*,FAC

Phyla cuneifolia (Torr.) Greene FACW* FAC FAC FAC FACW FAC* NI NI FAC*,FACW

Phyla lanceolata (Michx.) Greene OBL FACW+ OBL OBL OBL FACW OBL OBL FACW FACW,OBL

Phyla nodiflora (L.) Greene FACW FACW FACW FACW FAC+ FACW FAC* NI FACW FACW FAC* FAC*,FACW

Phyla stoechadifolia (L.) Small FACW+ OBL FACW+,OBL

Phyla strigulosa (Mart. & Gal.) Moldenke FAC FAC FAC FAC

Phyllanthus caroliniensis Walt. FAC+ FAC+ FAC FAC+ FAC+ FAC,FAC+

Phyllanthus leibmannianus Muell.-Arg. FACW FACW

Phyllanthus pudens L.C. Wheeler FACW FACW- FACW-,FACW

Phyllanthus stipulatus (Raf.) G.L. Webster FACW FACW

Phyllanthus urinaria L. FAC NI FAC* FAC FAC FAC*,FAC

Phyllodoce aleutica (Spreng.) Heller FACU* FACU*

Phyllodoce breweri (Gray) Heller NI FAC* FAC*

Phyllodoce empetriformis (Sm.) D. Don NI FACU FACU* FACU* FACU* FACU*,FACU

Phyllodoce glanduliflora (Hook.) Coville NI FACU* UPL* UPL*,FACU*

Phyllospadix scouleri Hook. OBL OBL OBL OBL

Phyllospadix torreyi S. Wats. OBL OBL OBL

Phyllostegia brevidens Gray FAC* FAC*

Physalis angulata L. FAC FAC FAC FACU FAC- FAC UPL FAC FAC FAC* UPL,FAC

Physalis philadelphica var. immaculata Waterfall UPL UPL UPL NI NI UPL* NI FAC UPL*,FAC

Physalis pubescens L. FACU- UPL UPL FAC FACU FACU NI NI FACU FAC UPL,FAC

Physocarpus capitatus (Pursh) Kuntze FACW FACW FAC FAC,FACW

Physocarpus monogynus (Torr.) Coult. FACU FAC FAC FACU FACU UPL UPL,FAC

Physocarpus opulifolius (L.) Maxim. FACW- FAC- FACW- FACU FACU UPL* FACU UPL*,FACW-

Physostegia angustifolia Fern. FACW FAC FACW FACW FAC,FACW

Physostegia correllii (Lundell) Shinners OBL OBL OBL OBL

Physostegia digitalis Small FAC FACW- FAC,FACW-

Physostegia godfreyi Cantino OBL OBL

Physostegia intermedia (Nutt.) Engelm. & Gray FACW- FACW- FACW- OBL FACW-,OBL

Physostegia leptophylla Small OBL OBL OBL

Physostegia parviflora Nutt. ex Gray FACW- FACW OBL FACW* FACW FACW-,OBL

Physostegia pulchella Lundell FACW FACW

Physostegia purpurea (Walt.) Blake FACW NI NI FACW

Physostegia virginiana (L.) Benth. FAC+ FACW FACW OBL OBL FACW* FACW FACW* NI FAC+,OBL

Physostegia virginiana ssp. praemorsa (Shinners) Cantino NI FACW NI NI FACW FACW FACW



North Central

North Plains

Central Plains




Phytolacca americana L. FACU+ FACU+ FAC- FAC FACU* FACU* NI NI FACU*,FAC

Phytolacca americana var. rigida (Small) Caulkins & Wyatt FACU FAC- FACU,FAC-

Phytolacca rivinoides Kunth & Bouché FACW FACW

Picea engelmannii Parry ex Engelm. NI NI FAC- FACU-* FAC FAC FACU-*,FAC

Picea glauca (Moench) Voss FACU FACU FACU FAC* FACU FACU,FAC*

Picea mariana (P. Mill.) B.S.P. FACW- NI FACW FACW FACW-,FACW

Picea pungens Engelm. NI NI NI FAC FAC- FAC- FAC-,FAC

Picea rubens Sarg. FACU FACU FACU

Picea sitchensis (Bong.) Carr. FAC FAC FACU FACU,FAC

Picris echioides L. UPL* UPL* UPL FAC UPL*,FAC

Pieris phillyreifolia (Hook.) DC. FACW+ FACW+

Pilea fontana (Lunell) Rydb. FACW+ FACW+ FACW OBL OBL FACW,OBL

Pilea herniarioides (Sw.) Lindl. NI OBL OBL

Pilea inaequalis (Juss. ex Poir.) Weddell FACW FACW

Pilea krugii Urban FACW FACW

Pilea leptophylla Urban FAC FAC

Pilea multicaulis Urban OBL OBL

Pilea nummulariifolia (Sw.) Weddell FAC FAC

Pilea parietaria (L.) Blume OBL OBL

Pilea peploides (Gaud.) Hook. & Arn. OBL OBL

Pilea pumila (L.) Gray FACW FACW FACW FACW FAC FAC FAC,FACW

Pilea semidentata (Juss. ex Poir.) Weddell FAC+ FAC+

Pilea yunquensis (Urban) Britt. & Wilson OBL OBL

Pilularia americana A. Braun OBL OBL OBL OBL OBL OBL OBL

Pinanga insignis Becc. FAC FAC

Pinckneya bracteata (Bartr.) Raf. OBL OBL

Pinguicula caerulea Walt. OBL OBL

Pinguicula ionantha Godfrey OBL OBL

Pinguicula lutea Walt. FACW+ FACW+

Pinguicula macroceras Link NI OBL OBL* OBL OBL*,OBL

Pinguicula macroceras var. macroceras Link NI OBL OBL NI OBL

Pinguicula planifolia Chapman OBL OBL

Pinguicula primuliflora Wood & Godfrey OBL OBL

Pinguicula pumila Michx. OBL OBL OBL

Pinguicula villosa L. OBL OBL

Pinguicula vulgaris L. OBL OBL NI NI OBL OBL



North Central

North Plains

Central Plains




Pinus banksiana Lamb. FACU FACU NI NI FACU

Pinus contorta Dougl. ex Loud. FACU FACU- FACU- FAC FAC FAC FACU-,FAC

Pinus contorta var. contorta Dougl. ex Loud. NI NI FACW FACW

Pinus contorta var. latifolia Engelm. ex S. Wats. NI NI NI FACU UPL* UPL*,FACU

Pinus elliottii Engelm. FACW FAC NI FAC,FACW

Pinus glabra Walt. FACW FACW

Pinus monticola Dougl. ex D. Don FACU FACU FACU FACU

Pinus palustris P. Mill. FAC FACU+ FAC- FACU+,FAC

Pinus ponderosa P.& C. Lawson UPL FACU- FACU FACU UPL* FACU- UPL UPL*,FACU

Pinus resinosa Soland. FACU NI FACU FACU

Pinus rigida P. Mill. FACU FACU- NI FACU-,FAC-

Lower Coastal Plain FAC-

Pinus serotina Michx. OBL FACW+ FACW+,OBL

Pinus strobus L. FACU FACU FACU FACU,FAC-*

Seaboard Lowlands FAC-*

Pinus taeda L. FAC* FAC UPL* FAC- UPL*,FAC

Piper aduncum L. NI FACW FACW

Piper blattarum Spreng. OBL OBL

Piper dilatatum L.C. Rich. FACW FACW

Piper hispidum Sw. FACW FACW

Piper jacquemontianum Kunth FACW FACW

Piper ponapense C. DC. FAC FAC

Piper swartzianum (Miq.) C. DC. OBL OBL

Piperia elegans (Lindl.) Rydb. NI NI UPL UPL

Piperia unalascensis (Spreng.) Rydb. UPL* FAC NI NI FACU NI FAC FAC UPL*,FAC

Piptochaetium avenaceum (L.) Parodi UPL UPL FACU-* UPL UPL,FACU-*

Piriqueta cistoides (L.) Griseb. NI FAC FAC

Pistia stratiotes L. NI OBL OBL OBL OBL OBL OBL OBL

Pitcairnia angustifolia Ait. FAC FAC

Pithecellobium unguis-cati (L.) Benth. UPL FAC- UPL,FAC-

Keys FACU*

Pittosporum gayanum Rock FAC FAC

Pittosporum glabrum Hook. & Arn. FAC* FAC*

Pityopsis graminifolia var. graminifolia (Michx.) Nutt. UPL FACU- FACU UPL,FACU

Pityopsis oligantha (Chapman ex Torr. & Gray) Small FAC FAC* FAC*,FAC



North Central

North Plains

Central Plains




Pityrogramma ebenea (L.) Proctor FAC FAC

Pityrogramma sulphurea (Sw.) Maxon FACU FACU

Pityrogramma trifoliata (L.) R. Tryon FAC FACW FAC,FACW

Plagiobothrys acanthocarpus (Piper) I.M. Johnston OBL OBL

Plagiobothrys austiniae (Greene) I.M. Johnston NI OBL* OBL*

Plagiobothrys bracteatus (T.J. Howell) I.M. Johnston FACW+ OBL FACW+,OBL

Plagiobothrys chorisianus (Cham.) I.M. Johnston OBL OBL

Plagiobothrys chorisianus var. undulatus (Piper) Higgins, comb. nov. ined FACW+ FACW+

Plagiobothrys distantiflorus (Piper) I.M. Johnston ex M.E. Peck OBL OBL

Plagiobothrys figuratus (Piper) I.M. Johnston ex M.E. Peck OBL OBL FACW NI NI FACW,OBL

Plagiobothrys figuratus ssp. figuratus (Piper) I.M. Johnston ex M.E. Peck NI OBL* NI NI FACW FACW,OBL*

Plagiobothrys glaber (Gray) I.M. Johnston NI OBL OBL

Plagiobothrys glyptocarpus (Piper) I.M. Johnston NI FACW FACW

Plagiobothrys greenei (Gray) I.M. Johnston FACW FACW FACW

Plagiobothrys hirtus (Greene) I.M. Johnston OBL OBL

Plagiobothrys humistratus (Greene) I.M. Johnston OBL OBL

Plagiobothrys hystriculus (Piper) I.M. Johnston FACW FACW

Plagiobothrys leptocladus (Greene) I.M. Johnston NI NI OBL FACW OBL FACW,OBL

Plagiobothrys lithocaryus (Greene ex Gray) I.M. Johnston FACW* FACW*

Plagiobothrys mollis (Gray) I.M. Johnston FACW FACW FACW FACW

Plagiobothrys nothofulvus (Gray) Gray UPL FAC FAC UPL,FAC

Plagiobothrys orientalis (L.) I.M. Johnston FACW* FACW*

Plagiobothrys parishii I.M. Johnston OBL OBL

Plagiobothrys reticulatus (Piper) I.M. Johnston NI FACW* FACW*

Plagiobothrys salsus (Brandeg.) I.M. Johnston FACW FACW FACW FACW

Plagiobothrys scouleri (Hook. & Arn.) I.M. Johnston NI FACW* FACW+ NI FACW+ OBL FACW FACW FACW FACW*,OBL

Plagiobothrys scouleri var. hispidulus (Greene) Dorn NI NI NI NI NI NI FACU* NI FACU*

Plagiobothrys stipitatus (Greene) I.M. Johnston FACW FACW OBL FACW,OBL

Plagiobothrys strictus (Greene) I.M. Johnston OBL OBL

Plagiobothrys tenellus (Nutt. ex Hook.) Gray FAC FAC- FAC FAC* FAC-,FAC

Plagiobothrys tener (Greene) I.M. Johnston OBL OBL

Plagiobothrys trachycarpus (Gray) I.M. Johnston NI FACW* FACW*

Planera aquatica J.F. Gmel. OBL OBL OBL OBL OBL

Plantago australis Lam. NI FAC+ FAC+

Plantago australis ssp. hirtella (Kunth) Rahn OBL NI OBL

Plantago bigelovii Gray NI OBL OBL OBL



North Central

North Plains

Central Plains




Plantago cordata Lam. OBL OBL OBL OBL

Plantago coronopus L. NI UPL FACW FAC UPL,FACW

Plantago elongata Pursh FACW+ FACW FACW FAC FACW- NI FACW FACW FACW* FAC,FACW+

Plantago eriopoda Torr. FAC FAC FAC FAC FAC FAC+ FACW FACW FACU FACU,FACW

Plantago firma Kunze ex Walp. NI*

Plantago heterophylla Nutt. FAC+ FACW- FACW- FACW- FAC+ FACW FAC+,FACW

Plantago lanceolata L. UPL FAC FAC FAC FAC FAC FAC FACU FACU+ FAC- FACU FACW FACU UPL,FACW

Plantago macrocarpa Cham. & Schlecht. OBL FACW FACW,OBL

Plantago major L. FACU FAC+ FAC+ FAC FAC FAC+ FACW FAC FAC FAC FAC FACU FAC* FACU,FACW

Plantago maritima L. FACW NI FACW+ FACW+ FACW FACW,FACW+

Plantago ovata Forsk. FAC UPL FACU FACU UPL,FAC

Plantago pachyphylla Gray FACW FACW

Plantago patagonica Jacq. UPL UPL UPL UPL UPL FACU- UPL UPL UPL UPL UPL,FACU-

Plantago princeps Cham. & Schlecht. NI

Plantago pusilla Nutt. UPL FACU FACU FACU FAC FACU+ FAC UPL,FAC

Plantago rhodosperma Dcne. NI UPL FACU FACU FACU FAC+ UPL UPL,FAC+

Plantago rugelii Dcne. FACU FAC FAC FACU FAC FAC NI FACU,FAC

Plantago sparsiflora Michx. NI OBL OBL

Plantago subnuda Pilger FACW FACW+ FACW,FACW+

Plantago virginica L. UPL FACU- FACU- FACU- FACU FACU- FAC* NI FACU FACW UPL,FACW

Platanthera X andrewsii (M. White) Luer OBL FAC OBL FAC,OBL

Platanthera blephariglottis (Willd.) Lindl. OBL OBL OBL OBL OBL

Platanthera chapmanii (Small) Luer FACW FACW FACW

Platanthera chorisiana (Cham.) Reichenb. OBL OBL OBL

Platanthera ciliaris (L.) Lindl. FACW FACW FACW FACW FACW

Platanthera clavellata (Michx.) Luer FACW+ OBL OBL OBL OBL FACW+,OBL

Platanthera cristata (Michx.) Lindl. FACW+ OBL OBL FACW+,OBL

Platanthera dilatata (Pursh) Lindl. ex Beck FACW FACW+ FACW NI FACW FACW FACW+ FACW FACW,FACW+

Platanthera flava (L.) Lindl. FACW FACW FACW NI FACW FACW

Platanthera grandiflora (Bigelow) Lindl. FACW FACW NI FACW

Platanthera holochila (Hbd.) Kraenzlin FACW* FACW*

Platanthera hookeri (Torr. ex Gray) Lindl. FAC FAC+ FAC,FAC+

Platanthera hyperborea (L.) Lindl. FACW NI FACW+ FACW+ FACW FACW FACW FACW+ FACW+ FACW FACW,FACW+

Platanthera integra (Nutt.) Gray ex Beck OBL OBL OBL OBL

Platanthera integrilabia (Correll) Luer OBL OBL NI OBL

Platanthera lacera (Michx.) G. Don FACW FACW FACW FACW FACW FACW



North Central

North Plains

Central Plains




Platanthera leucophaea (Nutt.) Lindl. FACW+ OBL FACW+ OBL OBL FACW+,OBL

Platanthera leucostachys Lindl. NI NI NI NI FACW NI FACW

Platanthera limosa Lindl. OBL OBL

Platanthera nivea (Nutt.) Luer FACW FACW FACW FACW

Platanthera obtusata (Banks ex Pursh) Lindl. FACW FACW NI NI FACW FACW FACW FACW

Platanthera orbiculata (Pursh) Lindl. FAC FACU FAC FAC NI FAC FACU,FAC

Platanthera peramoena (Gray) Gray FACW FACW FACW FACW

Platanthera psycodes (L.) Lindl. FACW FACW- FACW FACW FACW-,FACW

Platanthera sparsiflora (S. Wats.) Schlechter NI FACW FACW FACW FACW FACW

Platanthera stricta Lindl. FACW NI FACW FACW FACW+ FACW FACW FACW,FACW+

Platanthera tipuloides (L.) Lindl. FACW FACW

Platanus occidentalis L. FACW- FACW- FACW FAC FAC+ FAC,FACW

Platanus racemosa Nutt. FACW FACW

Platanus wrightii S. Wats. FACW-* FACW-*

Platydesma spathulata (Gray) B.C. Stone FAC FAC

Platythelys querceticola (Lindl.) Garay FACW FACW

Plectritis ciliosa (Greene) Jepson FAC* FACU FACU FACU,FAC*

Plectritis congesta (Lindl.) DC. FACU+ FACU FACU,FACU+

Plectritis macrocera Torr. & Gray FACU- FACU+ FACU* FACU-,FACU+

Pleea tenuifolia Michx. OBL OBL

Pleodendron macranthum (Baill.) v. Tiegh. FACW FACW

Pluchea camphorata (L.) DC. FACW FACW FACW FACW FACW- FACW-,FACW

Pluchea carolinensis (Jacq.) G. Don NI FACW FAC* FAC*,FACW

Pluchea foetida (L.) DC. OBL OBL OBL FACW+ FACW+,OBL

Pluchea indica (L.) Less. FAC* FAC*

Pluchea longifolia Nash OBL OBL

Pluchea odorata (L.) Cass. NI FACW NI NI NI NI NI NI FACW+ FAC* FAC*,FACW+

Pluchea odorata var. odorata auct. non (L.) Cass. OBL FACW+ NI OBL OBL FACW+ OBL OBL NI FACW+,OBL

Pluchea rosea Godfrey FACW FACW FACW

Pluchea sagittalis (Lam.) Cabrera OBL OBL

Pluchea sericea (Nutt.) Cav. FAC FAC FACW FACW FAC,FACW

Pneumatopteris sandwicensis (Brack.) Holttum NI

Poa abbreviata ssp. pattersonii (Vasey) A.& D. Löve & Kapoor NI NI FAC* FAC+ FACU NI NI FACU,FAC+

Poa alpina L. FACU FACU* NI NI FACU FACU* FAC FACU FACU*,FAC

Poa alsodes Gray FACW- UPL FACW- UPL,FACW-

Poa annua L. FACU FAC FAC- FACU FACU FAC FAC- FAC FAC FAC FAC OBL FACU- FACU-,OBL



North Central

North Plains

Central Plains




Poa arctica R. Br. NI FACW FACU FACU* NI FAC FACU*,FACW

Poa arctica ssp. lanata (Scribn. & Merr.) Soreng FACU FACU

Poa arida Vasey FAC FAC FAC FAC- FAC FACU* FAC- FACU*,FAC

Poa atropurpurea Scribn. NI

Poa autumnalis Muhl. ex Ell. FAC FACW- FAC FAC- FAC-,FACW-

Poa chapmaniana Scribn. UPL FAC FACU* UPL FACU UPL,FAC

Poa compressa L. FACU FACU- FACU+ FACU FACU FAC- FACU FACU FACU+ FAC FAC NI FACU-,FAC

Poa confinis Vasey NI UPL UPL

Poa curta Rydb. FACU FACU FACU

Poa douglasii Nees FACU- UPL UPL,FACU-

Poa eminens J. Presl FAC FAC

Poa fendleriana (Steud.) Vasey NI FACU- UPL UPL UPL UPL UPL FACU* UPL,FACU*

Poa fendleriana ssp. fendleriana (Steud.) Vasey NI NI NI NI NI NI FACU FACU

Poa interior Rydb. NI NI NI NI FAC* FAC* FAC- NI FAC-,FAC*

Poa leibergii Scribn. FACU* FACU FAC FACU*,FAC

Poa leptocoma Trin. NI NI OBL FACW FACW+ FACW FAC FAC,OBL

Poa macrocalyx Trautv. & C.A. Mey. NI NI FAC FAC

Poa mannii Munro ex Hbd. FAC* FAC*

Poa marcida A.S. Hitchc. FACW FACW

Poa napensis Beetle OBL OBL

Poa nemoralis L. FAC FAC FAC- FAC- FAC NI* FAC FAC-,FAC

Poa nervosa (Hook.) Vasey NI NI FACU* FACU FACU- FACU* FACU-,FACU

Poa paludigena Fern. & Wieg. FACW+ NI OBL FACW+,OBL

Poa palustris L. FACW FAC FACW+ FACW FACU FAC FACW FAC FACW FAC FACU,FACW+

Poa pratensis L. FACU FACU+ FAC- FACU FACU FACU+ FACU FACU FAC FAC FACU OBL UPL UPL,OBL

Poa pringlei Scribn. NI NI NI UPL UPL

Poa pseudoabbreviata Rosh. FAC FAC

Poa sandvicensis (Reichart) A.S. Hitchc. FAC FAC

Poa secunda J. Presl NI NI FACU FACU NI FACU+ FACU FACU FACU FACU* FACU*,FACU+

Poa siphonoglossa Hack. FAC FAC

Poa stebbinsii Soreng FACU* FACU*

Poa stenantha Trin. NI NI NI FACU FAC FACU,FAC

Poa sylvestris Gray FACW FAC+ FAC FACU FAC FAC FACU,FACW

Poa trivialis L. FACW FACW FACW FACW FACW NI FACW FACW FACW FAC FAC,FACW

Poa unilateralis Scribn. FACU- FACU* FACU-,FACU*

Podocarpus coriaceus L.C. Rich. FACW FACW



North Central

North Plains

Central Plains




Podophyllum peltatum L. FACU FACU FACU FACU- FACU- FACU-,FACU

Podostemum ceratophyllum Michx. OBL OBL OBL NI OBL OBL

Pogogyne abramsii J.T. Howell OBL OBL

Pogogyne clareana J.T. Howell FACU* FACU*

Pogogyne douglasii Benth. OBL OBL

Pogogyne douglasii ssp. parviflora (Benth.) J.T. Howell FACW* FACW*

Pogogyne floribunda Jokerst OBL OBL

Pogogyne nudiuscula Gray OBL OBL

Pogogyne serpylloides (Torr.) Gray FACW* FACW*

Pogogyne ziziphoroides Benth. NI OBL OBL

Pogonia ophioglossoides (L.) Ker-Gawl. OBL OBL OBL OBL OBL OBL

Polanisia dodecandra (L.) DC. FACU FACU- UPL* FACU UPL FACU FACU- FACU FACU- NI UPL*,FACU

Polemonium acutiflorum Willd. ex Roemer & J.A. Schultes NI NI NI FAC FAC

Polemonium foliosissimum Gray NI FAC FACU FAC- FACU,FAC

Polemonium foliosissimum var. flavum (Greene) Anway FACW FACW

Polemonium micranthum Benth. NI NI NI NI FACU FACU

Polemonium occidentale Greene NI NI NI NI FACW FACW OBL NI FACW,OBL

Polemonium occidentale ssp. occidentale Greene NI NI FACW NI OBL* FACW,OBL*

Polemonium pauciflorum S. Wats. FACW- FACW FACW-,FACW

Polemonium reptans L. FACU FAC FAC NI FAC FAC* FACU,FAC

Polemonium vanbruntiae Britt. FACW FACW

Polyctenium fremontii (S. Wats.) Greene NI NI FAC* FAC*

Polyctenium williamsiae Rollins FAC* FAC*

Polygala balduinii Nutt. OBL NI OBL

Polygala balduinii var. carteri (Small) R.R. Sm. & Ward FACW FACW

Polygala brevifolia Nutt. OBL OBL OBL

Polygala chapmanii Torr. & Gray OBL OBL

Polygala cornuta var. fishiae (Parry) Jepson FACW* FACW*

Polygala crenata C.W. James FACW NI FACW

Polygala cruciata L. FACW+ OBL FACW+ OBL NI FACW+,OBL

Polygala cymosa Walt. OBL OBL OBL

Polygala hookeri Torr. & Gray FACW+ FACW FACW,FACW+

Polygala incarnata L. UPL FAC- FACU- FACU FAC- UPL,FAC-

Polygala leptocaulis Torr. & Gray FACW+ FACW+ FACW+

Polygala longicaulis Kunth FAC FAC

Polygala lutea L. FACW+ FACW+ FACW+



North Central

North Plains

Central Plains




Polygala mariana P. Mill. FACW FACW FACW FACW

Polygala nana (Michx.) DC. FAC+ FAC+ FAC+

Polygala nuttallii Torr. & Gray FAC FAC FAC

Polygala paniculata L. NI NI FAC FACU* FACU*,FAC

Polygala paucifolia Willd. FACU FACU FACU FACU

Polygala polygama Walt. UPL FACU FACU- FACU UPL,FACU

Polygala ramosa Ell. FACW+ OBL OBL FACW+,OBL

Polygala rugelii Shuttlw. ex Chapman FACW FACW

Polygala sanguinea L. FACU FAC- FACU FACW FAC FACW FAC* FACU,FACW

Polygala senega L. FACU FACU FACU FACU FACU NI NI FACU

Polygala setacea Michx. FAC+ FAC+

Polygala verticillata L. UPL UPL UPL UPL FAC- FAC- NI FACU- UPL,FAC-

Polygonatum biflorum (Walt.) Ell. FACU FAC- FACU UPL UPL FACU* FACU* UPL,FAC-

Polygonatum biflorum var. commutatum (J.A. & J.H. Schultes) Morong FACU FAC FACU UPL UPL FAC FACU* NI UPL,FAC

Polygonum achoreum Blake FACU NI FAC FACU FAC NI FACU FAC FACU,FAC

Polygonum acuminatum Kunth OBL OBL

Polygonum alpinum All. NI FAC FAC

Polygonum amphibium L. OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL

Polygonum arenastrum Jord. ex Boreau NI NI NI NI NI NI NI FACU* NI FAC NI NI NI FACU*,FAC

Polygonum argyrocoleon Steud. ex Kunze NI OBL NI NI OBL OBL FAC FAC+ NI FAC,OBL

Polygonum arifolium L. OBL OBL OBL OBL NI OBL

Polygonum aviculare L. FACU FAC- FAC- FACU FACW FAC+ FACW UPL FACW- FAC FACU UPL,FACW

Polygonum bistorta L. FACW FAC FAC,FACW

Polygonum bistortoides Pursh NI NI OBL FAC+ FACW* OBL FAC+,OBL

Polygonum careyi Olney FACW FACW+ FACW,FACW+

Polygonum cespitosum Blume FACU- FACW- UPL NI NI NI UPL,FACW-

Polygonum convolvulus L. FACU FACU FAC- FAC FACU FAC FACU- FACU FACU- NI* FACU NI FACU-,FAC

Polygonum cuspidatum Sieb. & Zucc. FACU- UPL FACU NI FACU NI FACU* FACU* UPL,FACU

Polygonum davisiae Brewer ex Gray NI UPL UPL

Polygonum densiflorum Meisn. OBL OBL OBL NI OBL OBL OBL OBL

Polygonum douglasii Greene UPL NI FACU FAC FACU- NI UPL UPL FACU FACU UPL,FAC

Polygonum erectum L. FACU FACU FACU OBL OBL FAC* FAC* NI FACU- NI FACU-,OBL

Polygonum fowleri B.L. Robins. NI NI FACW FACW* FAC FAC,FACW

Polygonum glaucum Nutt. FACU FACU+ FACU,FACU+

Polygonum hirsutum Walt. OBL OBL

Polygonum hydropiper L. OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL FACW* OBL FACW*,OBL



North Central

North Plains

Central Plains




Polygonum hydropiperoides Michx. OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL

Polygonum lapathifolium L. FACW+ FACW FACW+ OBL OBL FACW- OBL OBL FACW OBL FAC FAC,OBL

Polygonum marinense Mert. & Raven OBL OBL

Polygonum meisnerianum Cham. & Schlecht. OBL OBL

Polygonum minimum S. Wats. NI NI NI FAC* FAC FACU+ FACW NI FACU+,FACW

Polygonum orientale L. FACU- FACU- UPL FAC- FACW NI UPL,FACW

Polygonum paronychia Cham. & Schlecht. NI NI NI

Polygonum parryi Greene FAC FAC* FAC*,FAC

Polygonum patulum Bieb. NI UPL FACW* UPL,FACW*

Polygonum pensylvanicum L. FACW FACW FACW+ FACW FACW+ FACW- OBL OBL FACW OBL FACW FACW-,OBL

Polygonum perfoliatum L. FAC* NI NI FAC*

Polygonum persicaria L. FACW FACW FACW FACW OBL FACW+ FACW+ FACW FACW FACW FAC FACW* FAC,OBL

Polygonum phytolaccifolium Meisn. ex Small NI FAC* FAC- NI FAC-,FAC*

Polygonum polygaloides Meisn. NI NI FACW FACW- NI FACW-,FACW

Polygonum polygaloides ssp. confertiflorum (Nutt. ex Piper) Hickman NI NI OBL OBL FACW+ OBL FACW+,OBL

Polygonum polygaloides ssp. esotericum (L.C. Wheeler) Hickman NI OBL OBL

Polygonum polygaloides ssp. kelloggii (Greene) Hickman NI NI FACU* FACU FAC FAC FACU*,FAC

Polygonum polystachyum Wallich ex Meisn. NI FAC FAC* FAC*,FAC

Polygonum punctatum Ell. OBL FACW+ OBL OBL OBL FACW OBL OBL OBL OBL OBL OBL FACW,OBL

Polygonum ramosissimum Michx. FAC FACU- FAC- FACU FAC FACW FAC FACU FAC- FACU* FACU FACU-,FACW

Polygonum ramosissimum var. prolificum Small NI NI NI NI NI NI NI NI FAC* NI FAC*

Polygonum robustius (Small) Fern. OBL NI OBL* NI NI OBL*,OBL

Polygonum sachalinense F. Schmidt ex Maxim. UPL* UPL UPL* FACU* FACU* UPL*,FACU*

Polygonum sagittatum L. OBL OBL OBL OBL OBL OBL OBL OBL

Polygonum scandens L. FAC FAC- FAC FACU FACU FACW FACU NI FACU,FACW

Polygonum segetum Kunth NI NI OBL OBL

Polygonum setaceum Baldw. OBL FACW OBL OBL NI FACW,OBL

Polygonum striatulum B.L. Robins. NI FACW- FACW-

Polygonum virginianum L. FAC FAC FAC FACW FAC FAC,FACW

Polygonum viviparum L. FAC FACW FACW NI FAC* FAC+ FAC FAC FAC*,FACW

Polypodium loriceum L. OBL OBL

Polypogon australis Brongn. NI NI FACW+ FACW+

Polypogon elongatus Kunth NI NI OBL NI OBL OBL

Polypogon interruptus Kunth NI OBL OBL OBL OBL FACW+ FACW OBL FACW+ FACW,OBL

Polypogon maritimus Willd. OBL NI OBL OBL

Polypogon monspeliensis (L.) Desf. FACW+ FACW OBL OBL OBL FACW+ FACW+ FACW+ FACW FACW+ FACW FACW FACW,OBL



North Central

North Plains

Central Plains




Polypogon viridis (Gouan) Breistr. FACW NI OBL OBL FACW+ OBL FACW OBL FAC FAC,OBL

Polypremum procumbens L. UPL FACU- UPL UPL* FAC UPL*,FAC

Polyscias subcapitata Kanehira FACU FACU

Polystichum acrostichoides (Michx.) Schott FACU- FAC UPL UPL FACU* UPL,FAC

Polystichum lonchitis (L.) Roth NI UPL FACU- NI FACU* UPL FACU FAC UPL UPL,FAC

Polystichum munitum (Kaulfuss) K. Presl NI FACU FACU NI FACU

Pontederia cordata L. OBL OBL OBL OBL OBL OBL

Ponthieva racemosa (Walt.) C. Mohr OBL FACW+ FACW FAC+ FAC+,OBL

Ponthieva ventricosa (Griseb.) Fawcett & Rendle FACW FACW

Populus X acuminata Rydb. (pro sp.) FAC FAC FAC+ FACW FACW* FAC FAC,FACW

Populus angustifolia James FACW FACW FACW FACW FACW* FACW FACW FACW*,FACW

Populus balsamifera L. FACW FACW FACW FACW FAC* FAC FACW FACU FACU,FACW

Populus deltoides Bartr. ex Marsh. FAC FAC+ FAC+ FAC FAC FAC FACW- FACW* FAC FAC,FACW*

Populus fremontii S. Wats. NI FACW- FACW FACW* FAC+* FAC+*,FACW

Populus grandidentata Michx. FACU- FACU FACU NI FACU-,FACU

Populus heterophylla L. OBL* OBL OBL OBL*,OBL

Populus X hinckleyana Correll (pro sp.) FAC- NI NI NI FAC-

Populus tremula L. FACU FAC FACU,FAC

Populus tremuloides Michx. NI NI NI FAC FAC FAC- FACU FACU- FAC+ FAC+ FACU FACU-,FAC+

Porterella carnosula (Hook. & Arn.) Torr. OBL OBL OBL OBL OBL

Portulaca halimoides L. NI NI NI NI NI NI NI NI FACW FACW

Portulaca oleracea L. FAC FACU FAC- FACU FAC FAC FAC FAC FAC FAC FAC FACU FACU,FAC

Portulaca pilosa L. NI FACU NI NI NI NI NI FACU FACU FACU

Portulaca umbraticola Kunth FAC FAC- FAC FAC-,FAC

Potamogeton alpinus Balbis OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL

Potamogeton amplifolius Tuckerman OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL

Potamogeton bicupulatus Fern. OBL NI OBL

Potamogeton clystocarpus Fern. OBL OBL

Potamogeton confervoides Reichenb. OBL OBL OBL OBL

Potamogeton crispus L. OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL

Potamogeton diversifolius Raf. OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL

Potamogeton epihydrus Raf. OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL

Potamogeton X faxonii Morong (pro sp.) OBL OBL NI NI OBL

Potamogeton filiformis Pers. OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL

Potamogeton floridanus Small OBL OBL

Potamogeton foliosus Raf. OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL



North Central

North Plains

Central Plains




Potamogeton friesii Rupr. OBL OBL OBL OBL OBL OBL OBL OBL

Potamogeton gramineus L. OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL

Potamogeton X hagstroemii Benn. (pro sp.) NI OBL NI NI OBL

Potamogeton hillii Morong OBL OBL OBL

Potamogeton illinoensis Morong OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL

Potamogeton insulanus Hagstr. OBL OBL

Potamogeton latifolius (J.W. Robbins) Morong OBL OBL OBL OBL OBL OBL

Potamogeton mariannensis Cham. & Schlecht. OBL OBL

Potamogeton X mysticus Morong (pro sp.) OBL NI OBL

Potamogeton natans L. OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL

Potamogeton nodosus Poir. OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL

Potamogeton oakesianus J.W. Robbins OBL NI OBL OBL

Potamogeton obtusifolius Mert. & Koch OBL OBL OBL OBL NI OBL

Potamogeton pectinatus L. OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL

Potamogeton perfoliatus L. OBL OBL OBL OBL

Potamogeton praelongus Wulfen OBL OBL OBL OBL OBL OBL OBL OBL OBL

Potamogeton pulcher Tuckerman OBL OBL OBL OBL OBL

Potamogeton pusillus L. OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL

Potamogeton X rectifolius Benn. NI OBL NI OBL

Potamogeton richardsonii (Benn.) Rydb. OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL

Potamogeton robbinsii Oakes OBL OBL OBL OBL OBL OBL OBL OBL

Potamogeton X spathuliformis (J.W. Robbins) Morong (pro sp.) OBL OBL NI NI NI OBL

Potamogeton spirillus Tuckerman OBL OBL OBL OBL OBL

Potamogeton strictifolius Benn. OBL OBL OBL OBL OBL OBL OBL

Potamogeton subsibiricus Hagstr. OBL OBL

Potamogeton tennesseensis Fern. OBL OBL OBL

Potamogeton vaginatus Turcz. OBL OBL OBL NI OBL OBL OBL OBL

Potamogeton vaseyi J.W. Robbins OBL OBL OBL

Potamogeton zosteriformis Fern. OBL OBL OBL OBL OBL OBL OBL OBL OBL

Potentilla argentea L. UPL FACU FACU FACU FACU FACU FAC- UPL,FAC-

Potentilla arguta Pursh UPL NI FACU- FACU FACU FACU+ FACU FACU FACU FACU UPL,FACU+

Potentilla basaltica Tiehm & Ertter NI

Potentilla biennis Greene FACW NI FAC* FAC FACW FACW FAC*,FACW

Potentilla concinna Richards. NI NI NI NI NI UPL UPL

Potentilla diversifolia Lehm. FACW NI FACW* FACU FACU FAC* FACW FACU,FACW

Potentilla drummondii Lehm. NI FACW FAC FACW NI FAC,FACW



North Central

North Plains

Central Plains




Potentilla flabellifolia Hook. ex Torr. & Gray NI FACW* FAC* FACW FAC*,FACW

Potentilla glandulosa Lindl. FAC OBL* FACU FAC- FAC FACU,OBL*

Potentilla gracilis Dougl. ex Hook. NI FAC FAC NI NI FAC- FAC FACW FAC FAC-,FACW

Potentilla hickmanii Eastw. FACW FACW

Potentilla millefolia Rydb. NI NI FACW FACW

Potentilla multijuga Lehm. OBL OBL

Potentilla nana Willd. ex Schlecht. NI NI FAC FAC

Potentilla newberryi Gray OBL* OBL OBL* OBL*,OBL

Potentilla norvegica L. FACU FAC- FAC FAC FAC FAC FAC FAC- FAC FAC* FAC FACU,FAC

Potentilla paradoxa Nutt. OBL NI FACW- FACW FAC FACW+ FACW* OBL FACW FAC,OBL

Potentilla pensylvanica var. virgulata (A. Nels.) T. Wolf NI NI NI FACU FACU

Potentilla plattensis Nutt. FACW+ FACW FACW OBL FACW FACW,OBL

Potentilla rivalis Nutt. NI NI FACW+ OBL FACW+ FACW+ OBL* OBL FACW FACW+ FACW,OBL

Potentilla rivalis var. millegrana (Engelm. ex Lehm.) S. Wats. OBL OBL OBL FACW+ FACW OBL* NI FAC+ OBL FAC+,OBL

Potentilla rivalis var. pentandra (Engelm.) S. Wats. NI FACW+ FAC* FACW+ FACW FAC*,FACW+

Potentilla simplex Michx. FACU- FACU FACU- UPL UPL UPL,FACU

Potentilla thurberi Gray FACW+ FACW+

Pouteria multiflora (A. DC.) Eyma FACU FACU

Pouzolzia zeylanica (L.) Benn. NI FAC FAC

Premna obtusifolia R. Br. FAC* FAC*

Prenanthes alba L. FACU FACU FACU FACU FACU

Prenanthes altissima L. FACU- UPL FACU UPL* UPL*,FACU

Prenanthes autumnalis Walt. FAC FAC FAC

Prenanthes crepidinea Michx. FACU UPL FAC+ NI UPL,FAC+

Prenanthes racemosa Michx. FACW- FACW FACU FAC FACU- FAC FACU-,FACW

Prescotia oligantha (Sw.) Lindl. UPL FAC+ UPL,FAC+

Prescotia stachyodes (Sw.) Lindl. FACW FACW

Prestoea montana (Graham) Nichols. FACW FACW

Primula alcalina Cholewa & D. Henderson OBL* OBL*

Primula angustifolia Torr. NI FAC* FACU- FACU-,FAC*

Primula capillaris N.& A. Holmgren FACW* FACW*

Primula cuneifolia Ledeb. OBL OBL

Primula cusickiana (Gray) Gray FAC FAC

Primula egaliksensis Wormsk. ex Hornem. OBL NI FACW FACW,OBL

Primula ellisiae Pollard & Cockerell NA*

Primula incana M.E. Jones FACW NI OBL OBL FACW FACW,OBL



North Central

North Plains

Central Plains




Primula laurentiana Fern. FAC FAC

Primula maguirei L.O. Williams UPL* UPL*

Primula mistassinica Michx. FACW FACW FACW FACW

Primula nutans Georgi FACW FACW

Primula parryi Gray NI NI FAC+ FACW FAC FAC,FACW

Primula rusbyi Greene FAC FAC

Primula suffrutescens Gray FAC* FAC*

Primula tschuktschorum Kjellm. FACW* FACW*

Prionopsis ciliata (Nutt.) Nutt. NI FACU- UPL* UPL FACU* FACU* NI NI* UPL*,FACU*

Pristimera caribaea (Urban) A.C. Sm. FAC FAC

Pritchardia affinis Becc. FACU FACU

Pritchardia arecina Becc. FAC FAC

Pritchardia beccariana Rock FAC FAC

Pritchardia forbesiana Rock FAC FAC

Pritchardia hardyi Rock FAC FAC

Pritchardia hillebrandii (Kuntze) Becc. FAC* FAC*

Pritchardia kaalae Rock FACU* FACU*

Pritchardia lanaiensis Becc. & Rock FACU FACU

Pritchardia lanigera Becc. FAC FAC

Pritchardia lowreyana Rock FACU* FACU*

Pritchardia martii (Gaud.) H. Wendl. FAC FAC

Pritchardia minor Becc. FAC FAC

Pritchardia munroi Rock FACU FACU

Pritchardia remota ssp. glabrata (Becc. & Rock) R.W. Read, comb. nov. i FAC* FAC*

Pritchardia remota ssp. napaliensis (St. John) R.W. Read, comb. nov. ined FACU FACU

Pritchardia viscosa Rock FAC FAC

Proboscidea louisianica (P. Mill.) Thellung FACU FACU FAC+ FACU FACU FAC- FAC UPL FACU- FAC* UPL,FAC+

Proserpinaca intermedia Mackenzie OBL OBL NI OBL

Proserpinaca palustris L. OBL OBL OBL OBL OBL

Proserpinaca pectinata Lam. OBL OBL OBL OBL OBL

Prosopis glandulosa var. glandulosa Torr. UPL UPL FACU- FACU UPL FAC- UPL,FAC-

Prosopis glandulosa var. torreyana (L. Benson) M.C. Johnston NI NI NI UPL FACU UPL,FACU

Prosopis pallida (Humb. & Bonpl. ex Willd.) Kunth FAC FACU- FACU-,FAC

Prosopis pubescens Benth. FAC+ FACW- FAC FAC FAC,FACW-

Prosopis velutina Woot. FACU FACU FACU

Prunella vulgaris L. FACU+ FAC- FAC FACW FAC FAC FACW- FACU FACU+ FAC* FAC* FACU FACU,FACW



North Central

North Plains

Central Plains




Prunus alleghaniensis Porter UPL NI UPL* UPL*,UPL

Prunus americana Marsh. FACU- FACU- UPL UPL UPL UPL* FACU* UPL FACU UPL*,FACU

Prunus caroliniana (P. Mill.) Ait. NI

Prunus emarginata (Dougl. ex Hook.) Walp. NI NI NI FACU FACU FACU

Prunus nigra Ait. UPL FACU- UPL,FACU-

Prunus occidentalis Sw. FAC FAC

Prunus pensylvanica L. f. FACU- FACU FACU-* FACU+ NI UPL FAC- UPL,FAC-

Prunus pumila L. NI UPL UPL NI NI NI NI UPL

Prunus serotina Ehrh. FACU FACU FACU FACU FACU FACU FACU FACU

Prunus virginiana L. FACU FACU FAC- FACU- FACU FACU- FAC UPL FACU FAC- UPL,FAC

Psathyrostachys juncea (Fisch.) Nevski NI FACU FAC NI FACU FAC FACU,FAC

Psathyrotes annua (Nutt.) Gray NI NI NI UPL UPL

Pseudophoenix sargentii H. Wendl. ex Sarg. FACU UPL UPL,FACU

Pseudoroegneria spicata ssp. spicata (Pursh) A. Love NI FACU- UPL UPL UPL UPL UPL FACU UPL UPL,FACU

Pseudotsuga menziesii (Mirbel) Franco NI NI NI NI NI NI NI FACU* NI FACU*

Psidium cattleianum Sabine NI NI FACU FACU

Psidium guajava L. FACU FAC FACU FACU,FAC

Psidium sintenisii (Kiaersk.) Alain OBL OBL

Psilocarphus brevissimus Nutt. NI OBL FACW+ OBL FACW+,OBL

Psilocarphus elatior (Gray) Gray FACW NI FACW

Psilocarphus oregonus Nutt. OBL OBL OBL

Psilocarphus tenellus Nutt. OBL FAC FAC,OBL

Psilochilus macrophyllus (Lindl.) Ames FACW FACW

Psilotrichum trichotomum Bl. FACW FACW

Psilotum complanatum Sw. FAC* FAC*

Psilotum nudum (L.) Beauv. FACU+ FACW+ NI UPL FACU- UPL,FACW+

Psorothamnus arborescens var. arborescens (Torr. ex Gray) Barneby FACU FACU

Psychotria berteriana DC. FAC+ FAC+

Psychotria brachiata Sw. NI FAC+ FAC+

Psychotria domingensis Jacq. FAC+ FAC+

Psychotria fauriei (Levl.) Fosberg FAC FAC

Psychotria garberiana Christoph. FACU FACU

Psychotria grandiflora Mann FACU FACU

Psychotria grandis Sw. FAC FAC

Psychotria maleolens Urban FACW FACW

Psychotria nervosa Sw. FACW FAC FAC,FACW



North Central

North Plains

Central Plains




Psychotria tenuifolia Sw. FACW NI FACW

Psychotria uliginosa Sw. FACW FACW

Ptelea trifoliata L. FAC FAC FACU+ UPL FAC FACU* UPL UPL,FAC

Pteridium aquilinum (L.) Kuhn FACU FACU FACU FACU FACU FAC- FACU FACU FACU FACU FACU FACU- NI FACU-,FAC-

Pteris altissima Poir. OBL OBL

Pteris arborea L. FACW FACW

Pteris biaurita L. FACW FACW

Pteris ensiformis Burm. f. NI NI FAC* FAC*

Pteris grandifolia L. OBL OBL OBL

Pteris lidgatei (Baker) Christ FACW FACW

Pteris longifolia L. NI NI NI FACU FACU

Pteris plumula Desv. NI FACW FACW

Pteris pungens Willd. OBL OBL

Pteris spinescens Presl FACU FACU

Pteris tripartita Sw. FACW NI FACW

Pteris vittata L. NI NI FACW* NI NI FACW*

Pterocarpus officinalis Jacq. OBL OBL

Pterocaulon virgatum (L.) DC. FAC- FAC FAC FAC-,FAC

Pterolepis glomerata (Rottb.) Miq. NI FAC FAC

Ptilagrostis kingii (Boland.) Barkworth FACU FACU

Ptilimnium capillaceum (Michx.) Raf. OBL OBL OBL OBL OBL FACW FACW FACW,OBL

Ptilimnium costatum (Ell.) Raf. NI FACW OBL OBL FACW,OBL

Ptilimnium nodosum (Rose) Mathias OBL OBL OBL

Ptilimnium nuttallii (DC.) Britt. FACW FAC+ FACW+ FACW FACW FAC+,FACW+

Ptilimnium X texense Coult. & Rose (pro sp.) OBL OBL

Puccinellia andersonii Swallen OBL* OBL*

Puccinellia angustata (R. Br.) Rand & Redf. FACW FACW

Puccinellia arctica (Hook.) Fern. & Weatherby FAC FAC

Puccinellia distans (Jacq.) Parl. OBL OBL FACW OBL FACW* OBL FACW+ OBL FACW FACW*,OBL

Puccinellia distans ssp. hauptiana (Trin. ex Krecz.) W.E. Hughes OBL OBL

Puccinellia fasciculata (Torr.) Bickn. OBL OBL OBL OBL

Puccinellia grandis Swallen OBL OBL OBL OBL

Puccinellia howellii J.I. Davis OBL OBL

Puccinellia hultenii Swallen OBL OBL

Puccinellia interior Sorensen OBL OBL

Puccinellia kamtschatica Holmb. OBL OBL



North Central

North Plains

Central Plains




Puccinellia kurilensis (Takeda) Honda FACW FACW+ OBL FACW FACW,OBL

Puccinellia lemmonii (Vasey) Scribn. NI FAC FAC FACW* FAC,FACW*

Puccinellia lucida Fern. & Weatherby NI OBL FACW* FACW*,OBL

Puccinellia maritima (Huds.) Parl. OBL OBL OBL OBL

Puccinellia nutkaensis (J. Presl) Fern. & Weatherby OBL OBL OBL

Puccinellia nuttalliana (J.A. Schultes) A.S. Hitchc. FACW+ OBL OBL OBL OBL OBL FACW+ FACW+ FACW FACW,OBL

Puccinellia parishii A.S. Hitchc. OBL OBL OBL

Puccinellia phryganodes (Trin.) Scribn. & Merr. OBL OBL

Puccinellia simplex Scribn. NI FACW* FACW*

Puccinellia tenella ssp. langeana (Berlin) Tzvelev FACW+ NI OBL FACW+,OBL

Puccinellia vaginata (Lange) Fern. & Weatherby FACW FACW

Puccinellia wrightii (Scribn. & Merr.) Tzvelev OBL OBL

Pulicaria paludosa Link NI

Pycnanthemum albescens Torr. & Gray UPL FAC UPL FACU FAC UPL,FAC

Pycnanthemum flexuosum (Walt.) B.S.P. FACW FACU FACU,FACW

Pycnanthemum floridanum E. Grant & Epling FAC- FAC-

Pycnanthemum muticum (Michx.) Pers. FACW FAC FAC UPL UPL,FACW

Pycnanthemum nudum Nutt. FACW- FACW-

Pycnanthemum setosum Nutt. FACU FAC FACU,FAC

Pycnanthemum tenuifolium Schrad. FACW FAC- FAC+ FACU FAC FACU,FACW

Pycnanthemum verticillatum (Michx.) Pers. FAC UPL UPL* NI NI UPL*,FAC

Pycnanthemum virginianum (L.) T. Dur. & B.D. Jackson ex B.L. Robins. FAC FAC FACW+ FAC FAC FAC* NI FAC*,FACW+

Pyrola americana Sweet FAC FACU FAC- FACU FACU,FAC

Pyrola asarifolia Michx. FACW FACW* FACU NI FAC* FACW* FACU+ FACU FAC FACU,FACW

Pyrola asarifolia ssp. asarifolia Michx. FACW NI NI NI NI NI FACW- NI FACU FACU,FACW

Pyrola chlorantha Sw. UPL FACU FACU FACU FAC* FAC FAC NI FACU UPL,FAC

Pyrola elliptica Nutt. UPL UPL NI NI NI NI NI NI UPL

Pyrola grandiflora Radius FAC FAC

Pyrola minor L. FAC FAC+ NI NI FACU* UPL FACU+ FACU* FAC UPL,FAC+

Pyrrocoma hirta var. hirta (Gray) Greene UPL* UPL FACU UPL*,FACU

Pyrrocoma lanceolata var. lanceolata (Hook.) Greene FACU NI FAC FAC FACW* FACU,FACW*

Pyrrocoma racemosa var. racemosa (Nutt.) Torr. & Gray FAC* FAC+ FAC*,FAC+

Pyrrocoma uniflora var. uniflora (Hook.) Greene FAC FACW- FACW FAC,FACW

Pyrularia pubera Michx. UPL FACU+ UPL,FACU+

Pyxidanthera barbulata Michx. FACU- FAC FACU-,FAC

Quararibea turbinata (Sw.) Poir. FAC+ FAC+



North Central

North Plains

Central Plains




Quercus alba L. FACU FACU FACU FACU FACU+ FACU,FACU+

Lower Coastal Plain FACU+*

Quercus X beadlei Trel. ex Palmer NI FACW NI FACW- FACW-,FACW

Quercus bicolor Willd. FACW+ FACW+ FACW+ OBL FACW+,OBL

Quercus falcata Michx. FACU- FACU- FACU FACU FACU-,FACU

Quercus garryana Dougl. ex Hook. UPL NI UPL

Quercus geminata Small NI UPL UPL

Quercus hemisphaerica Bartr. ex Willd. NI FACU NI FACU

Quercus imbricaria Michx. FAC FAC- FAC- FACU FAC FACU,FAC

Quercus laurifolia Michx. FACW- FACW FACW FACW-,FACW

Quercus lobata Née FACU FACU

Quercus lyrata Walt. OBL OBL OBL OBL OBL

Quercus X macnabiana Sudworth NI FACU FACU

Quercus macrocarpa Michx. FAC- FAC FAC- FACU FACU FAC- NI NI FACU,FAC

Quercus michauxii Nutt. FACW FACW- FACW FAC FAC,FACW

Quercus muehlenbergii Engelm. UPL UPL FACU FACU FAC* NI UPL,FAC*

Quercus nigra L. FAC FAC FACW FAC+ FAC,FACW

Quercus oglethorpensis Duncan FAC+ FAC+

Quercus pagoda Raf. FACW FAC+ FACW- FAC+ FAC+,FACW

Quercus palustris Muenchh. FACW FACW FACW FACW FAC FAC,FACW

Quercus phellos L. FAC+ FACW- FACW FACW FAC+,FACW

Quercus prinoides Willd. NI UPL FACU-* UPL UPL* UPL*,FACU-*

Quercus prinus L. UPL UPL FACU- UPL,FACU-

Quercus rubra L. FACU- FACU FACU FACU FACU+ FACU-,FACU+

Quercus shumardii Buckl. FAC+ FACW- FACW- FAC FAC FAC,FACW-

Quercus similis Ashe FACW FACW* FACW*,FACW

Quercus stellata Wangenh. UPL FACU FACU- FACU NA* UPL,FACU

Quercus texana Buckl. OBL OBL NI FACW FACW,OBL

Quercus velutina Lam. NI UPL UPL NI NI UPL

Quercus virginiana P. Mill. FACU FACU+ FACU+ FACU,FACU+

Quincula lobata (Torr.) Raf. NI NI NI NI FACU* FACU*

Raillardella pringlei Greene OBL OBL

Raillardella scaposa (Gray) Gray NI NI FACU* FACU*

Rajania cordata L. FAC FAC

Randia aculeata L. FAC* FAC FAC*,FAC

Ranunculus abortivus L. FACW- FAC FACW- FACW FACW FAC+ FACW* FACW* FACW- FAC FAC,FACW



North Central

North Plains

Central Plains




Ranunculus acriformis Gray NI NI FACW+ FACW- FACW-,FACW+

Ranunculus acris L. FAC+ FACW FACW- FACW FACW FACW FACW FACW- FACW FACW FAC+,FACW

Ranunculus adoneus Gray NI FACW+ FACW FACW,FACW+

Ranunculus alismifolius Geyer ex Benth. NI NI FACW FACW FACW FACW

Ranunculus allegheniensis Britt. FAC FACU FACU,FAC

Ranunculus ambigens S. Wats. OBL OBL OBL OBL

Ranunculus aquatilis L. OBL NI OBL OBL OBL OBL

Ranunculus arvensis L. NI FAC FAC FACU FACU UPL NI* UPL,FAC

Ranunculus bonariensis var. trisepalus (Gillies ex Hook. & Arn.) Lourteig OBL OBL

Ranunculus bulbosus L. UPL* FAC+ FACW FAC- NI NI* UPL*,FACW

Ranunculus californicus Benth. FAC* FAC FAC*,FAC

Ranunculus canus Benth. FAC* FAC*

Ranunculus cardiophyllus Hook. FACW FACW FACW FACW+ FACW FACW,FACW+

Ranunculus cymbalaria Pursh OBL NI OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL

Ranunculus eschscholtzii Schlecht. NI NI FACW FACW FAC* FACW* FACW* FAC*,FACW

Ranunculus fascicularis Muhl. ex Bigelow FACU FAC- FACU FACU FAC NI FACU,FAC

Ranunculus ficaria L. FAC* NI NI NI FAC*

Ranunculus flabellaris Raf. OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL

Ranunculus flammula L. FACW FACW FACW NI FACW FACW OBL FACW FACW FACW,OBL

Ranunculus glaberrimus Hook. FAC FAC FAC FACU FACU FAC FACU,FAC

Ranunculus glacialis L. FACW FACW

Ranunculus gmelinii DC. FACW FACW+ FACW+ FACW OBL FACW+ FACW FACW FACW,OBL

Ranunculus gormanii Greene FACW+ FACW FACW,FACW+

Ranunculus harveyi (Gray) Britt. FACU FACU- FACU+ FACU-,FACU+

Ranunculus hederaceus L. OBL OBL OBL

Ranunculus hispidus Michx. FAC FAC FAC FAC FACW FAC FAC,FACW

Ranunculus hispidus var. nitidus (Chapman) T. Duncan FACW+ FACW+ FACW+ OBL FACW FACW FACW,OBL

Ranunculus hydrocharoides Gray OBL NI OBL OBL

Ranunculus hyperboreus Rottb. NI NI OBL OBL OBL OBL

Ranunculus inamoenus Greene FACW FACW FACW FACW- FACW FACW-,FACW

Ranunculus jovis A. Nels. NI FACW FAC+ FAC+,FACW

Ranunculus kamchaticus DC. FACW FACW

Ranunculus karelinii Czern. UPL* NI FACW UPL*,FACW

Ranunculus lapponicus L. OBL OBL OBL OBL

Ranunculus laxicaulis (Torr. & Gray) Darby OBL OBL OBL OBL OBL OBL

Ranunculus lobbii (Hiern) Gray OBL OBL OBL



North Central

North Plains

Central Plains




Ranunculus longirostris Godr. OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL

Ranunculus macauleyi Gray FACW* FACW FACW*,FACW

Ranunculus macounii Britt. OBL OBL OBL OBL OBL OBL OBL OBL FACW FACW,OBL

Ranunculus macranthus Scheele NI NI FACW+ FACW FACW,FACW+

Ranunculus mauiensis Gray FACW* FACW*

Ranunculus micranthus Nutt. FACU FACU FAC- FAC FACU FACU+ FACU,FAC

Ranunculus muricatus L. FACW FACW- FACW FACW+ FACU FACU,FACW+

Ranunculus nivalis L. NI NI FACW FACW

Ranunculus occidentalis Nutt. FAC* FAC FACW FACW FAC*,FACW

Ranunculus oreogenes Greene NI FACU* FACU- FACU-,FACU*

Ranunculus orthorhynchus Hook. FACW FACW FACW FACW FACW

Ranunculus pallasii Schlecht. OBL OBL

Ranunculus parviflorus L. FAC FAC FAC FAC NI NI* FACU FACU,FAC

Ranunculus pedatifidus Sm. NI NI OBL* FACW FAC FAC FAC,OBL*

Ranunculus pensylvanicus L. f. OBL OBL FACW+ OBL FACW* NI FACW FACW FACW*,OBL

Ranunculus platensis Spreng. FAC+ FACW FAC+,FACW

Ranunculus plebeius R. Br. ex DC. FAC FAC

Ranunculus populago Greene NI FACW OBL* FACW,OBL*

Ranunculus pusillus Poir. OBL FACW+ OBL OBL OBL FACW+,OBL

Ranunculus pygmaeus Wahlenb. NI NI NI FACW FAC+ FACW FAC+,FACW

Ranunculus ranunculinus (Nutt.) Rydb. NI NI FAC* FACU NI FACU,FAC*

Ranunculus recurvatus Poir. FAC+ FAC FACW FAC FACW- FACW+ NI NI FAC,FACW+

Ranunculus repens L. FAC FAC FAC+ NI NI FACW+ FACW- FACW FACW FAC FAC+ FAC,FACW+

Ranunculus sabinii R. Br. NI NI FACW FACW

Ranunculus sardous Crantz UPL FAC+ FAC FAC FAC* FAC NI UPL,FAC+

Ranunculus sceleratus L. OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL

Ranunculus sulphureus Soland. ex Phipps FACW FACW

Ranunculus trichophyllus Chaix OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL

Ranunculus trilobus Desf. FACW NI FACW

Ranunculus uncinatus D. Don ex G. Don NI NI FACW* FACU FAC FAC FAC* FACU,FACW*

Ranunculus verecundus B.L. Robins. ex Piper NI FAC* NI FACW FAC*,FACW

Raphanus sativus L. NI NI NI NI NI NI NI NI NI UPL UPL NI NI UPL

Raphidophora palauensis Koidzumi FAC FAC

Reimarochloa oligostachya (Munro ex Benth.) A.S. Hitchc. OBL OBL

Remirea maritima Aubl. FACU UPL UPL,FACU

Renealmia alpinia (Rottb.) Maas OBL OBL



North Central

North Plains

Central Plains




Renealmia jamaicensis var. puberula (Gagnepain) Maas OBL OBL

Renealmia occidentalis (Sw.) Sweet OBL OBL

Reseda lutea L. NI NI NI NI NI NI NI UPL UPL

Reynoldsia lanutoensis Hochr. FACU FACU

Rhabdadenia biflora (Jacq.) Muell.-Arg. FACW+ OBL FACW+,OBL

Rhamnus alnifolia L'Hér. OBL OBL OBL FACW NI FAC* FACU OBL FACU,OBL

Rhamnus cathartica L. FACU+ NI FAC- FACU FACU UPL NI NI UPL,FAC-

Great Lakes Plain FAC-

Rhamnus lanceolata Pursh NI FAC* FACW* FAC FAC FAC* FAC*,FACW*

Rhapidophyllum hystrix (Pursh) H. Wendl. & Drude ex Drude FACW FACW

Rhexia alifanus Walt. FACW FACW FACW

Rhexia aristosa Britt. OBL OBL OBL

Rhexia cubensis Griseb. FACW+ FACW+ FACW+

Rhexia lutea Walt. FACW+ FACW+ FACW+

Rhexia mariana L. OBL FACW+ OBL OBL FACW+ FACW+,OBL

Rhexia nashii Small OBL FACW+ FACW+,OBL

Rhexia nuttallii C.W. James FACW+ FACW+

Rhexia parviflora Chapman OBL OBL

Rhexia petiolata Walt. OBL FACW+ FACW FACW,OBL

Rhexia salicifolia Kral & Bostick OBL OBL

Rhexia virginica L. OBL FACW+ OBL OBL FACW+,OBL

Rhinanthus minor ssp. groenlandicus (Ostenf.) L. Neum. NI NI NI NI FAC FAC

Rhinanthus minor ssp. minor L. FAC NI FACU* FACU- FACU NI FACU-,FAC

Rhizophora apiculata Bl. OBL OBL

Rhizophora mangle L. OBL OBL OBL OBL

Rhizophora mucronata Lam. OBL OBL

Rhododendron albiflorum Hook. NI NI FACU FACU FACU

Rhododendron arborescens (Pursh) Torr. FAC FACW- FAC,FACW-

Rhododendron atlanticum (Ashe) Rehd. FAC FAC+ FAC,FAC+

Rhododendron austrinum (Small) Rehd. FAC+* FAC+*

Rhododendron canadense (L.) Torr. FACW FACW

Rhododendron canescens (Michx.) Sweet FACW FACW- FACW- FACW-,FACW

Rhododendron catawbiense Michx. NI FACU* FACU*

Rhododendron chapmanii Gray FACW+ FACW+

Rhododendron lapponicum (L.) Wahlenb. UPL FACW- FAC UPL,FACW-

Rhododendron maximum L. FAC FAC- FAC-,FAC



North Central

North Plains

Central Plains




Rhododendron oblongifolium (Small) Millais FACW FACW+ FACW,FACW+

Rhododendron occidentale (Torr. & Gray ex Torr.) Gray FAC FAC FAC

Rhododendron periclymenoides (Michx.) Shinners FAC FAC FAC FAC

Rhododendron prinophyllum (Small) Millais FAC FAC FAC FAC+ FAC,FAC+

Rhododendron vaseyi Gray NI FACU FACU

Rhododendron viscosum (L.) Torr. FACW+ OBL FACW FACW,OBL

Rhodomyrtus tomentosus (Ait.) Hassk. NI FACU FACU

Rhus copallinum L. FACU- FACU- UPL* FACU FACU* NI UPL*,FACU

Rhus trilobata Nutt. NI UPL* UPL UPL UPL UPL UPL NI FACU* UPL*,FACU*

Rhynchosia phaseoloides (Sw.) DC. FACU FACU

Rhynchospora alba (L.) Vahl OBL OBL OBL OBL OBL OBL OBL OBL

Rhynchospora baldwinii Gray OBL OBL

Rhynchospora brachychaeta C. Wright ex Sauvalle NI OBL OBL

Rhynchospora breviseta (Gale) Channell OBL OBL OBL

Rhynchospora caduca Ell. OBL OBL OBL FACW* FACW*,OBL

Rhynchospora californica Gale OBL OBL

Rhynchospora capillacea Torr. OBL OBL OBL OBL OBL OBL

Rhynchospora capitellata (Michx.) Vahl OBL OBL OBL OBL OBL OBL OBL

Rhynchospora careyana Fern. OBL OBL

Rhynchospora cephalantha Gray OBL OBL OBL OBL

Rhynchospora cephalantha var. microcephala (Britt.) Kükenth. FACW+ OBL FACW+,OBL

Rhynchospora chalarocephala Fern. & Gale OBL OBL NI OBL

Rhynchospora chapmanii M.A. Curtis OBL OBL

Rhynchospora chinensis Nees & Meyen FACW* FACW*

Rhynchospora chinensis ssp. spiciformis (Hbd.) T. Koyama OBL* OBL*

Rhynchospora ciliaris (Michx.) C. Mohr OBL OBL

Rhynchospora colorata (L.) H. Pfeiffer FACW FACW FACW FACW FACW

Rhynchospora compressa Carey ex Chapman OBL OBL

Rhynchospora corniculata (Lam.) Gray OBL OBL OBL OBL OBL

Rhynchospora corymbosa (L.) Britt. FACW OBL FACW,OBL

Rhynchospora crinipes Gale OBL OBL

Rhynchospora culixa Gale OBL OBL

Rhynchospora curtissii Britt. OBL OBL

Rhynchospora decurrens Chapman OBL OBL

Rhynchospora divergens Chapman ex M.A. Curtis OBL OBL FACW FACW,OBL

Rhynchospora elliottii A. Dietr. FACW NI FACW FACW



North Central

North Plains

Central Plains




Rhynchospora eximia (Nees) Boeckl. OBL OBL

Rhynchospora fascicularis (Michx.) Vahl OBL FACW+ OBL FACW FACW,OBL

Rhynchospora fascicularis var. distans (Michx.) Chapman OBL FACW FAC FAC,OBL

Rhynchospora fernaldii Gale FAC FAC

Rhynchospora filifolia Gray FAC FACW- FAC FAC,FACW-

Rhynchospora floridensis (Britt.) H. Pfeiffer FACW+ FACW+

Rhynchospora fusca (L.) Ait. f. OBL OBL OBL

Rhynchospora gigantea Link OBL OBL

Rhynchospora globularis (Chapman) Small FACW FACW FACW FACW FACW OBL OBL FAC* FAC*,OBL

Rhynchospora glomerata (L.) Vahl OBL OBL OBL NI OBL OBL

Rhynchospora gracilenta Gray OBL OBL OBL OBL

Rhynchospora grayi Kunth FAC FACU- FAC+ FACU-,FAC+

Rhynchospora harperi Small NI OBL OBL

Rhynchospora harveyi W. Boott FAC FAC FAC FAC FAC+ FAC,FAC+

Rhynchospora holoschoenoides (L.C. Rich.) Herter OBL OBL

Rhynchospora indianolensis Small FACW+ FACW+

Rhynchospora inexpansa (Michx.) Vahl FACW FACW FACW FACW

Rhynchospora intermedia (Chapman) Britt. FACW FACW

Rhynchospora inundata (Oakes) Fern. OBL OBL OBL

Rhynchospora knieskernii Carey OBL NI OBL

Rhynchospora latifolia (Baldw. ex Ell.) Thomas FACW+ OBL FACW+,OBL

Rhynchospora lindeniana Griseb. OBL OBL

Rhynchospora lindeniana var. bahamensis (Britt.) Gale FACU FACU

Rhynchospora longiflora K. Presl FACW FACW

Rhynchospora macra (C.B. Clarke) Small OBL OBL OBL

Rhynchospora macrostachya Torr. ex Gray OBL OBL OBL OBL OBL OBL

Rhynchospora marisculus Nees FACW FACW

Rhynchospora micrantha Vahl FACW FACW

Rhynchospora microcarpa Baldw. ex Gray FACW+ FACW+ FACW+ FACW+

Rhynchospora miliacea (Lam.) Gray OBL OBL OBL NI OBL

Rhynchospora mixta Britt. OBL OBL OBL

Rhynchospora nitens (Vahl) Gray OBL OBL OBL OBL OBL OBL

Rhynchospora nivea Boeckl. NI FACW+ FACW+

Rhynchospora odorata C. Wright ex Griseb. OBL OBL OBL

Rhynchospora oligantha Gray OBL OBL OBL OBL OBL

Rhynchospora pallida M.A. Curtis OBL OBL OBL



North Central

North Plains

Central Plains




Rhynchospora perplexa Britt. FACW+ OBL OBL NI FACW+,OBL

Rhynchospora plumosa Ell. FACW FACW OBL FACW,OBL

Rhynchospora podosperma C. Wright ex Sauvalle FACW FACW

Rhynchospora polyphylla (Vahl) Vahl FACU* FACU*

Rhynchospora punctata Ell. OBL OBL

Rhynchospora pusilla Chapman ex M.A. Curtis FACW FACW+ OBL FACW,OBL

Rhynchospora racemosa C. Wright ex Sauvalle FACU FACU

Rhynchospora radicans (Schlecht. & Cham.) H. Pfeifer FAC FAC

Rhynchospora rariflora (Michx.) Ell. OBL OBL OBL OBL OBL

Rhynchospora rubra (Lour.) Makino FAC* FAC*

Rhynchospora rufa (Nees) Boeckl. OBL OBL

Rhynchospora rugosa (Vahl) Gale FAC FACW* FAC,FACW*

Rhynchospora rugosa ssp. lavarum (Gaud.) T. Koyama FACW FACW

Rhynchospora saxicola Small OBL OBL

Rhynchospora scirpoides (Torr.) Gray OBL OBL OBL NI OBL

Rhynchospora solitaria Harper NI

Rhynchospora stenophylla Chapman FACW NI FACW

Rhynchospora sulcata Gale OBL OBL

Rhynchospora tenerrima Nees ex Spreng. FACW FACW

Rhynchospora tenuis Link OBL OBL

Rhynchospora torreyana Gray FACW+ OBL FACW+,OBL

Rhynchospora tracyi Britt. OBL NI OBL

Rhynchospora wrightiana Boeckl. OBL OBL FACW FACW,OBL

Ribes acerifolium T.J. Howell NI

Ribes americanum P. Mill. FACW FACW FACW FACW FACW FAC FAC FAC,FACW

Ribes aureum Pursh NI NI NI NI NI FAC- FACW FAC FAC+ FACW FAC-,FACW

Ribes aureum var. villosum DC. FACU FACU FAC- FACU FAC FAC- FACU* NI NI FACU*,FAC

Ribes bracteosum Dougl. ex Hook. FAC NI FAC* FAC*,FAC

Ribes cereum Dougl. UPL UPL UPL UPL UPL FAC* UPL UPL,FAC*

Ribes cynosbati L. NI FACU NI NI NI FACU

Ribes divaricatum Dougl. NI NI FAC* FACW FAC*,FACW

Ribes echinellum (Coville) Rehd. FAC FAC

Ribes glandulosum Grauer FACW FACW FACW FACU FACU,FACW

Ribes hirtellum Michx. FAC FACW FAC FACW- NI FAC,FACW

Ribes hudsonianum Richards. OBL NI FACW FACW FACW* FAC FAC,OBL

Ribes hudsonianum var. petiolare (Dougl.) Jancz. NI NI FACU FACU



North Central

North Plains

Central Plains




Ribes inerme Rydb. NI NI FACW- FAC+ FAC FAC+ FAC,FACW-

Ribes inerme var. klamathense (Coville) Jepson FAC+ FAC* FAC*,FAC+

Ribes lacustre (Pers.) Poir. FACW NI FACW FACW NI FACW FAC+ FAC+ FAC FAC,FACW

Ribes menziesii var. thacherianum Jepson FACU FACU

Ribes nevadense Kellogg NI NI FAC* FAC*

Ribes oxyacanthoides ssp. setosum (Lindl.) Sinnott FACU FACU FACW FACW* FACU,FACW

Ribes rotundifolium Michx. NI UPL UPL

Ribes triste Pallas OBL OBL OBL FAC FAC FAC,OBL

Ribes viscosissimum Pursh NI FACU* FACU* FAC FAC* FACU*,FAC

Ribes wolfii Rothrock NI FAC FAC FAC* FAC*,FAC

Ricinus communis L. UPL* FACU FACU- UPL FACU FAC- UPL FACU FAC FACU UPL*,FAC

Rivina humilis L. UPL NI NI NI NI UPL

Robinia pseudoacacia L. FACU- UPL FACU- UPL UPL FACU-* UPL FACU FACU FACU- UPL,FACU

Rollandia angustifolia (Hbd.) Rock FACW FACW

Rollandia humboldtiana Gaud. FAC* FAC*

Rollandia lanceolata ssp. lanceolata Gaud. FAC FAC

Rollandia purpurellifolia Rock FAC FAC

Rollandia st.-johnii Hosaka FAC FAC

Rollinia mucosa (Jacq.) Baill. FACW FACW

Romanzoffia californica Greene FAC FACW FAC,FACW

Romanzoffia sitchensis Bong. NI FACW- FACW FACW FACW-,FACW

Rondeletia portoricensis Krug & Urban FAC FAC

Rorippa amphibia (L.) Bess. FACW NI NI FACW

Rorippa austriaca (Crantz) Bess. FAC- FACW- FACW FACW NI NI FAC* FAC-,FACW

Rorippa calycina (Engelm.) Rydb. OBL NI FACW FACW,OBL

Rorippa coloradensis R. Stuckey OBL OBL

Rorippa columbiae Suksdorf ex T.J. Howell OBL OBL OBL

Rorippa curvipes Greene FACW* OBL FACW+ NI OBL OBL FACW OBL FACW*,OBL

Rorippa curvisiliqua (Hook.) Bess. ex Britt. NI OBL OBL OBL OBL FACW FACW,OBL

Rorippa gambelii (S. Wats.) Rollins & Al-Shehbaz OBL OBL

Rorippa microphylla (Boenn. ex Reichenb.) Hyl. ex A.& D. Löve OBL OBL OBL NI NI NI OBL NI OBL OBL

Rorippa nasturtium-aquaticum (L.) Hayek OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL

Rorippa palustris (L.) Bess. OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL FAC FACW FAC,OBL

Rorippa portoricensis (Spreng.) Stehlé OBL OBL

Rorippa prostrata (Bergeret) Schinz & Thellung FAC NI FAC

Rorippa ramosa Rollins FACW- FACW-



North Central

North Plains

Central Plains




Rorippa sarmentosa (G. Forst. ex DC.) MacBr. FACW+ FACW+

Rorippa sessiliflora (Nutt.) A.S. Hitchc. OBL FACW+ OBL NI OBL OBL FACW+,OBL

Rorippa sinuata (Nutt.) A.S. Hitchc. NI FACW FACW FACW FACW FACW- FACW FACW FAC+ FACW FAC+,FACW

Rorippa sphaerocarpa (Gray) Britt. NI NI OBL OBL OBL FAC+ OBL* FAC+,OBL

Rorippa subumbellata Rollins OBL OBL OBL

Rorippa sylvestris (L.) Bess. FACW OBL OBL FACW+ OBL OBL NI OBL FACW,OBL

Rorippa tenerrima Greene NI FAC FAC FAC* FAC* FAC* NI FAC* FAC*,FAC

Rorippa teres (Michx.) R. Stuckey FACW OBL NI FACW OBL OBL OBL FACW NI NI FACW,OBL

Rorippa truncata (Jepson) R. Stuckey FAC* FAC FACW FAC* FAC* NI FAC* FAC*,FACW

Rosa acicularis Lindl. FACU FACU FACU FACU FACU FACU FACU FACU FACU

Rosa arkansana Porter NI NI FACU- NI FACU FACU* FACU* FACU NI FACU-,FACU

Rosa blanda Ait. FACU FACU- FACU FACU FACU NI FACU-,FACU

Rosa bracteata J.C. Wendl. NI UPL FACU* UPL,FACU*

Rosa californica Cham. & Schlecht. NI FAC+ FAC+

Rosa carolina L. UPL FACU FACU- FACU FACU UPL,FACU

Rosa eglanteria L. NI UPL NI NI NI NI FACW* FACU* UPL,FACW*

Rosa gymnocarpa Nutt. NI FACU FACU* FACU*,FACU

Rosa micrantha Borrer ex Sm. FACU FACU- FACU FACU NI FACU-,FACU

Rosa multiflora Thunb. ex Murr. FACU UPL FACU UPL UPL NI NI UPL,FACU

Rosa nitida Willd. FACW+ FACW+

Rosa nutkana K. Presl NI NI FACU* FAC- FAC- FAC* FACU* FACU*,FAC*

Rosa palustris Marsh. OBL OBL OBL OBL

Rosa pisocarpa Gray FAC FACU* FACU*,FAC

Rosa rugosa Thunb. FACU- FACU* NI FACU-,FACU*

Rosa setigera Michx. FACU FACU FACU+ FACU FACU- FACU-,FACU+

Rosa virginiana P. Mill. FAC FAC FAC FAC

Rosa woodsii Lindl. FACU FACU FACU FACU FACU FAC- FACU FAC UPL UPL,FAC

Rotala indica (Willd.) Koehne OBL NI OBL

Rotala ramosior (L.) Koehne OBL OBL OBL OBL OBL OBL OBL NI OBL OBL OBL OBL

Rottboellia cochinchinensis (Lour.) Clayton NI NI FAC FAC

Rourea surinamensis Miq. FAC+ FAC+

Rousselia humilis (Sw.) Urban FAC FAC

Roystonea borinquena O.F. Cook FAC FAC

Roystonea elata (Bartr.) F. Harper FAC NI FAC

Rubus allegheniensis Porter FACU- UPL FACU+ FACU- UPL FAC+ UPL,FAC+

Rubus alumnus Bailey FACU- NI FAC-* NI FACU-,FAC-*



North Central

North Plains

Central Plains




Rubus amnicola Blanch. FACU* FACU*

Rubus apogaeus Bailey UPL FACU* UPL,FACU*

Rubus arcticus L. NI NI NI NI FAC NI FAC FAC

Rubus arcticus ssp. acaulis (Michx.) Focke NI OBL NI OBL FAC+ FAC FAC,OBL

Rubus argutus Link FACU FAC FAC-* FAC NI FACU,FAC

Rubus arizonensis Focke NI FACU FACU

Rubus arvensis Bailey NI FAC- FAC* FAC-,FAC*

Rubus bartonianus M.E. Peck FACW* FACW*

Rubus bushii Bailey FACW FACW NI NI NI FACW

Rubus chamaemorus L. FACW NI FACW FACW

Rubus cuneifolius Pursh UPL FACU NI UPL,FACU

Rubus discolor Weihe & Nees UPL UPL UPL FAC* FACU* FACU FAC+ UPL,FAC+

Rubus flagellaris Willd. FACU UPL FACU- FACU- UPL UPL,FACU

Rubus floricomus Blanch. FACU FACU FACU

Rubus florulentus Focke FAC FAC

Rubus hispidoides Bailey FACW FACW

Rubus hispidus L. FACW FACW FACW FACW FACW

Rubus hypolasius Fern. OBL* OBL*

Rubus idaeus L. FAC- FACU- FACU+ FACU NI FACU* NI UPL FACU NI FAC UPL,FAC

Rubus idaeus ssp. strigosus (Michx.) Focke NI FACW FACW- FAC- FAC- FAC* FAC FACU FAC- NI FAC FACU,FACW

Rubus laciniatus Willd. UPL* UPL UPL FACU* NI FACU+ FAC+ UPL*,FAC+

Rubus lasiococcus Gray NI NI

Rubus lawrencei Bailey OBL NI OBL

Rubus leucodermis Dougl. ex Torr. & Gray NI NI NI NI FACU NI FACU

Rubus longii Fern. FAC NI FAC

Rubus macraei Gray FACU FACU

Rubus missouricus Bailey NI FACU* FACU*

Rubus multiformis Blanch. FAC FAC* FAC*,FAC

Rubus oklahomus Bailey FAC FAC

Rubus paganus Bailey FAC FAC

Rubus parviflorus Nutt. NI FACU+ FACU NI FAC* FAC FAC- FAC+ FACU FACU,FAC+

Rubus pedatus Sm. FACU* FAC* FACU*,FAC*

Rubus plus Bailey FAC FAC

Rubus probabilis Bailey FAC FAC FAC

Rubus probus Bailey NI

Rubus pubescens Raf. FACW FACW+ FACW FACW FAC+ FAC FAC,FACW+



North Central

North Plains

Central Plains




Rubus rosifolius Sm. FAC+ FAC- FAC-,FAC+

Rubus schoolcraftianus Bailey FAC* FAC*

Rubus semisetosus Blanch. FAC NI FAC

Rubus setosus Bigelow FACW FACW- FACW-,FACW

Rubus sons Bailey FAC FAC

Rubus spectabilis Pursh FAC+ FAC+ FACU FACU,FAC+

Rubus spectatus Bailey OBL* OBL*

Rubus stipulatus Bailey FAC* FAC*

Rubus subtractus Bailey NI NI

Rubus suus Bailey NI FAC- FAC* FAC-,FAC*

Rubus tardatus Blanch. FAC FAC* FAC*,FAC

Rubus trivialis Michx. FACU FAC FACU+ NI FAC FACU,FAC

Rubus ursinus Cham. & Schlecht. NI FACU FAC+ FACU,FAC+

Rubus uvidus Bailey NI FAC* FAC*

Rubus vitifolius Cham. & Schlecht. FAC+ FAC+

Rubus wheeleri (Bailey) Bailey FACW FAC* FAC*,FACW

Rudbeckia auriculata (Perdue) Kral FACW FACW

Rudbeckia californica Gray FACU+ FACW FACU+,FACW

Rudbeckia fulgida Ait. FAC FAC+ OBL FAC* FAC*,OBL

Rudbeckia graminifolia (Torr. & Gray) C.L. Boynt. & Beadle FACW FACW

Rudbeckia hirta L. FACU- FACU FACU FACU FACU FACU FACU FACU FACU FACU FACU-,FACU

Rudbeckia laciniata L. FACW FACW FACW+ FACU FAC FAC+ FACW- FAC+ FAC FACU,FACW+

Rudbeckia maxima Nutt. FAC+ FAC+* FAC+ FAC+*,FAC+

Rudbeckia missouriensis Engelm. ex C.L. Boynt. & Beadle UPL FACU- UPL UPL,FACU-

Rudbeckia mohrii Gray FACW+ FACW+

Rudbeckia nitida Nutt. FACW- FACU-* FACU-*,FACW-

Rudbeckia occidentalis Nutt. FACU FAC- FAC FACU,FAC

Rudbeckia subtomentosa Pursh FAC FAC+ FACU+ FAC FAC FACU+,FAC+

Rudbeckia triloba L. FACU FACU- FAC- FACU FACU* NI FACU-,FAC-

Ruellia brittoniana Leonard FAC FAC* FACW- FAC FAC*,FACW-

Ruellia caroliniensis (J.F. Gmel.) Steud. NI FACU* NI NI FACU*

Ruellia coccinea (L.) Vahl FACW FACW

Ruellia humilis Nutt. UPL FACU FACU- FACU FAC- UPL,FAC-

Ruellia malacosperma Greenm. FACU FACW- FACU,FACW-

Ruellia noctiflora (Nees) Gray FACW FACW

Ruellia nudiflora (Engelm. & Gray) Urban NI UPL* UPL* UPL*



North Central

North Plains

Central Plains




Ruellia prostrata Poir. FAC FAC

Ruellia strepens L. FAC FAC- FAC+ FAC FAC FAC-,FAC+

Ruellia tuberosa L. FACU FACU

Rumex acetosa L. FACU UPL NI NI FAC UPL,FAC

Rumex acetosella L. UPL FACU+ FAC FAC FAC FACW- FACW FAC- FACU+ FAC- FAC FACU UPL,FACW


Rumex altissimus Wood FACW- FACW FACW- FAC FAC FACW+ FAC+ NI NI FAC,FACW+

Rumex aquaticus var. fenestratus (Greene) Dorn OBL OBL OBL OBL NI OBL OBL FACW+ OBL OBL FACW+,OBL

Rumex arcticus Trautv. FAC FAC

Rumex chrysocarpus Moris FACW FACW FACW

Rumex conglomeratus Murr. FAC FACW- FACW FACW* FACW- NI FACW FACW FAC,FACW

Rumex crispus L. FACU FAC FAC+ FACW FACW FACW FACW FAC FAC+ FACW- FAC FAC+ FAC* FACU,FACW

Rumex densiflorus Osterhout NI FACW FACW+ FACW FACW,FACW+

Rumex dentatus L. NI NI NI NI OBL* OBL*

Rumex giganteus Ait. FACU- FACU-

Rumex hastatulus Baldw. FACU- FAC- FACU FAC FAC- FAC* FACU-,FAC

Rumex kerneri Borbás OBL OBL

Rumex longifolius DC. FAC FAC* FAC+ FACU FACU,FAC+

Rumex maritimus L. FACW FACW+ FACW+ FACW FACW FACW- FACW FACW FACW+ FACW+ FACW FACW-,FACW+

Rumex obovatus Danser OBL OBL

Rumex obtusifolius L. FACU- FACW- FACW FAC+ FAC FACW- FACW FACW FAC FACW FACW FAC FACU-,FACW

Rumex orbiculatus Gray OBL OBL OBL OBL OBL OBL* OBL*,OBL

Rumex orbiculatus var. borealis Rech. f. OBL OBL OBL OBL FACW+ NI* FACW+,OBL

Rumex pallidus Bigelow FACW FACW

Rumex paraguayensis Parodi FACW- FACW-

Rumex paucifolius Nutt. NI NI OBL FAC- OBL FAC-,OBL

Rumex pulcher L. FACW- FACW UPL* NI FACW- NI FAC- FAC+ UPL*,FACW

Rumex salicifolius Weinm. NI NI OBL NI NI NI NI FACW* FACW OBL FAC* FAC*,OBL

Rumex salicifolius var. lacustris (Greene) Hickman OBL FACW* FACW*,OBL

Rumex salicifolius var. mexicanus (Meisn.) C.L. Hitchc. FAC FAC FACW- FACW FAC FAC FACW- FACW* FAC FACW FAC,FACW

Rumex spiralis Small FACW- FACW-

Rumex stenophyllus Ledeb. FACW* FACW+ FACW+ NI FACW- NI* FACW-,FACW+

Rumex tomentella Rech. f. OBL OBL

Rumex venosus Pursh NI FAC FAC FAC* FACW UPL FACU+ FACU UPL,FACW

Rumex verticillatus L. OBL FACW+ OBL OBL FACW+ FACW* FACW*,OBL

Rumex violascens Rech. f. FACW- FACW+ FACW* FACW-,FACW+



North Central

North Plains

Central Plains




Ruppia cirrhosa (Petag.) Grande OBL OBL OBL

Ruppia maritima L. OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL

Rytidophyllum auriculatum Hook. FACW FACW

Sabal minor (Jacq.) Pers. FACW FACW FACW

Sabal palmetto (Walt.) Lodd. ex J.A. & J.H. Schultes FAC+ FAC+

Sabatia angularis (L.) Pursh FAC+ FAC FAC+ FAC FAC FAC,FAC+

Sabatia arenicola Greenm. FACW* FACW- FACW-,FACW*

Sabatia bartramii Wilbur FACW+ FACW+

Sabatia brachiata Ell. FACU FAC UPL UPL,FAC

Sabatia brevifolia Raf. NI FACW FACW

Sabatia calycina (Lam.) Heller OBL OBL FACW+ FACW+,OBL

Sabatia campanulata (L.) Torr. FACW FACW FACW FACW FACW

Sabatia campestris Nutt. FACU FACU FACU FACU FACU FACU

Sabatia difformis (L.) Druce OBL OBL OBL

Sabatia dodecandra (L.) B.S.P. OBL OBL OBL OBL

Sabatia gentianoides Ell. OBL FACW+ FACW+,OBL

Sabatia grandiflora (Gray) Small FACW+ FACW+

Sabatia kennedyana Fern. OBL OBL OBL

Sabatia macrophylla Hook. FACW+ FACW+

Sabatia quadrangula Wilbur FAC FAC FAC

Sabatia stellaris Pursh FACW+ OBL FACW+,OBL

Sabicea villosa Willd. ex Roemer & J.A. Schultes FAC+ FAC+

Saccharum alopecuroides (L.) Nutt. FAC FAC FACU- FACW- FACU-,FACW-

Saccharum baldwinii Spreng. OBL OBL OBL FACW+ FACW+,OBL

Saccharum brevibarbe (Michx.) Pers. OBL FACW OBL FACW,OBL

Saccharum contortum (Ell.) Nutt. FAC FAC FAC FAC

Saccharum giganteum (Walt.) Pers. FACW+ FACW NI FACW+ FACW,FACW+

Saccharum officinarum L. FACU NI FAC- FACU FACU,FAC-

Saccharum ravennae (L.) L. UPL FAC FACW UPL NI FAC NI FAC UPL,FACW

Saccharum spontaneum L. NI FAC NI FAC

Sacciolepis indica (L.) Chase FAC FAC* FAC+ FAC*,FAC+

Sacciolepis striata (L.) Nash OBL OBL NI OBL OBL OBL

Saccoloma domingense (Spreng.) C. Christens. OBL OBL

Saccoloma inaequale (Kunze) Mett. OBL OBL

Sadleria cyatheoides Kaulfuss FACU FACU

Sadleria pallida Hook. & Arn. FACU FACU



North Central

North Plains

Central Plains




Sadleria squarrosa (Gaud.) T. Moore FACW FACW

Sageretia minutiflora (Michx.) C. Mohr FAC FAC

Sagina apetala Ard. NI NI NI NI FAC FAC

Sagina decumbens (Ell.) Torr. & Gray FAC FAC+ FAC FAC FAC FAC FACU+ FAC* FACU FACU,FAC+

Sagina maxima Gray NI FAC- FACW FACW FAC-,FACW

Sagina nivalis (Lindbl.) Fries NI NI FAC FAC

Sagina nodosa (L.) Fenzl FAC FACU+* FACU+*,FAC

Sagina procumbens L. FACW- NI FACW NI NI NI FAC FAC+ FAC* FAC*,FACW

Sagina saginoides (L.) Karst. NI FACW NI FACW+ FACW FACW- UPL FAC UPL,FACW+

Sagittaria ambigua J.G. Sm. OBL OBL OBL OBL OBL

Sagittaria brevirostra Mackenzie & Bush OBL OBL OBL OBL OBL OBL OBL NI OBL

Sagittaria calycina Engelm. OBL OBL OBL OBL OBL OBL OBL NI NI OBL OBL

Sagittaria cristata Engelm. OBL OBL

Sagittaria cuneata Sheldon OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL

Sagittaria engelmanniana J.G. Sm. OBL OBL OBL

Sagittaria fasciculata E.O. Beal OBL OBL

Sagittaria graminea Michx. OBL OBL OBL OBL OBL OBL OBL NI OBL

Sagittaria greggii J.G. Sm. OBL OBL

Sagittaria guyanensis Kunth OBL OBL

Sagittaria intermedia Micheli OBL OBL

Sagittaria isoetiformis J.G. Sm. OBL OBL

Sagittaria kurziana Glück OBL OBL

Sagittaria lancifolia L. OBL OBL OBL OBL OBL

Sagittaria latifolia Willd. OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL

Sagittaria longiloba Engelm. ex J.G. Sm. OBL OBL OBL NI OBL OBL

Sagittaria montevidensis Cham. & Schlecht. OBL OBL OBL NI OBL

Sagittaria papillosa Buch. OBL OBL OBL

Sagittaria platyphylla (Engelm.) J.G. Sm. OBL OBL OBL OBL OBL OBL

Sagittaria rigida Pursh OBL OBL OBL OBL OBL

Sagittaria sanfordii Greene OBL OBL

Sagittaria stagnorum Small OBL OBL OBL

Sagittaria subulata (L.) Buch. OBL OBL NI OBL OBL

Salacia chinensis L. FAC FAC

Salicornia bigelovii Torr. OBL OBL OBL* OBL OBL OBL OBL*,OBL

Salicornia maritima Wolff & Jefferies OBL OBL OBL NI OBL OBL OBL OBL OBL

Salicornia rubra A. Nels. NI OBL OBL OBL OBL OBL OBL OBL OBL



North Central

North Plains

Central Plains




Salicornia virginica L. OBL OBL NI OBL* OBL OBL NI NI OBL OBL*,OBL

Salix alaxensis (Anderss.) Coville FAC FAC

Salix alba L. FACW FACW- FACW FACW FACW FAC FACW FAC,FACW

Salix amygdaloides Anderss. FACW FACW FACW FACW FACW FACW FACW FACW FACW

Salix arbusculoides Anderss. FACW FACW

Salix arctica Pallas NI NI OBL* FAC FAC FACW FAC FAC,OBL*

Salix arctophila Cockerell ex Heller FACW OBL FACW,OBL

Salix argyrocarpa Anderss. FACU FACU

Salix athabascensis Raup OBL OBL

Salix babylonica L. FACW- FACW FACW NI FACW FACW- FACU FAC+ FACW- NI NI FACU,FACW

Salix barclayi Anderss. NI FACW FAC FAC,FACW

Salix barrattiana Hook. NI FACW FACW FACW

Salix bebbiana Sarg. FACW FACW+ FACW FACW FACW FACW- FACW OBL FAC FAC,OBL

Salix bonplandiana Kunth FACW+ FACW+

Salix boothii Dorn NI NI NI FACW+ FACW+ NI FACW+

Salix brachycarpa Nutt. NI NI NI FACW- FACW+ NI* FAC NI FAC,FACW+

Salix brachycarpa ssp. brachycarpa Nutt. NI NI NI NI NI FAC* NI NI FAC*

Salix breweri Bebb NI FAC FAC

Salix candida Fluegge ex Willd. OBL OBL OBL NI OBL OBL OBL OBL

Salix caprea L. NI OBL NI OBL

Salix caroliniana Michx. OBL OBL OBL OBL FACW+ FACW+,OBL

Salix cascadensis Cockerell NI NI NI NI

Salix chamissonis Anderss. FACW* FACW*

Salix commutata Bebb NI OBL FAC FAC,OBL

Salix cordata Michx. FACW FAC+ FAC+,FACW

Salix delnortensis Schneid. NI FACW FACW

Salix discolor Muhl. FACW FACW FACW FACW FACW FACW

Salix drummondiana Barratt ex Hook. NI NI FACW FACW+ FACW OBL FACW,OBL

Salix eastwoodiae Cockerell ex Heller NI FACW+ FACW OBL FACW,OBL

Salix eriocephala Michx. FACW+ FACW+ FACW FACW FACW NI NI OBL FACW,OBL

Salix exigua Nutt. OBL OBL FACW+ FACW+ OBL FACW+ OBL FACW OBL FACW FACW FACW,OBL

Salix farriae Ball NI OBL OBL

Salix floridana Chapman FACW+ FACW+

Salix fragilis L. FAC+ FAC* FAC+ FAC FAC FAC* FAC NI FAC*,FAC+

Salix fuscescens Anderss. FACW FACW

Salix geyeriana Anderss. NI NI OBL FACW+ FACW+ OBL FACW+,OBL



North Central

North Plains

Central Plains




Salix glauca L. NI FACW FAC FACW FAC FAC,FACW

Salix gooddingii Ball FACW+ OBL FACW FACW FACW,OBL

Salix hastata L. FAC FAC

Salix hookeriana Barratt ex Hook. FACW FACW NI FACW

Salix humboldtiana Willd. NI*

Salix humilis Marsh. FACU FACU FACU FACU FACU FACU FACU

Salix irrorata Anderss. NI NI FACW+ FACW NI FACW,FACW+

Salix jepsonii Schneid. NI OBL OBL

Salix laevigata Bebb NI FACW* NI FACW+ FACW*,FACW+

Salix lanata L. NI FACW+ NI FACW+

Salix lanata ssp. richardsonii (Hook.) Skvort. FAC FAC

Salix lasiolepis Benth. FACW FACW FACW FACW FACW FACW

Salix lasiolepis var. lasiolepis Benth. NI NI NI FACW OBL FACW,OBL

Salix lemmonii Bebb NI FACW+ FACW+ OBL FACW+,OBL

Salix ligulifolia (Ball) Ball ex Schneid. NI NI NI NI NI FAC* FAC*

Salix lucida Muhl. FACW FACW+ FACW FACW FACW FACW+ NI FACW NI FACW,FACW+

Salix lucida ssp. lasiandra (Benth.) E. Murr. FACW+ NI FACW+ FACW+ FACW+ OBL FACW FACW,OBL

Salix lutea Nutt. NI FACW FACW FACW+ OBL OBL FACW,OBL

Salix maccalliana Rowlee NI NI FACW* FACW*

Salix melanopsis Nutt. NI FACW+ OBL FACW FACW,OBL

Salix monochroma Ball FACW- FACW-

Salix monticola Bebb OBL NI FACW+ FACW+ OBL FACW+,OBL

Salix myricoides Muhl. FACW FACW FACW

Salix myrtillifolia Anderss. NI NI FACW OBL FACW+ NI FACW FACW,OBL

Salix nigra Marsh. FACW+ OBL OBL OBL FACW+ FACW+,OBL

Salix orestera Schneid. NI NI FACW NI FACW FACW

Salix ovalifolia Trautv. FAC FAC

Salix pedicellaris Pursh OBL OBL OBL OBL OBL

Salix pellita (Anderss.) Anderss. ex Schneid. FACW FACW FACW

Salix petiolaris Sm. FACW+ FACW+ OBL OBL OBL* FACW+,OBL

Salix phlebophylla Anderss. NI NI FACU FACU

Salix planifolia Pursh OBL NI OBL OBL NI OBL OBL OBL OBL FACW FACW,OBL

Salix polaris Wahlenb. FACW FACW

Salix prolixa Anderss. NI NI OBL OBL

Salix pseudomonticola Ball FACW NI NI FACW NI FACW

Salix purpurea L. NI FACW FACW* NI NI FACW*,FACW



North Central

North Plains

Central Plains




Salix pyrifolia Anderss. FACW FACW+ FACW,FACW+

Salix reticulata L. NI NI FAC FAC FAC* FACW FAC FAC*,FACW

Salix rotundifolia Trautv. NI FACW FAC* FAC*,FACW

Salix scouleriana Barratt ex Hook. FACU NI FAC- FACU* FAC FAC FAC FACU*,FAC

Salix sericea Marsh. OBL OBL OBL OBL

Salix serissima (Bailey) Fern. OBL OBL OBL OBL OBL NI OBL

Salix sessilifolia Nutt. FACW FACW FACW

Salix setchelliana Ball FAC* FAC*

Salix sitchensis Sanson ex Bong. NI FACW FACW+ FAC FAC,FACW+

Salix sphenophylla Skvort. FAC FAC

Salix taxifolia Kunth FAC+ FACW- FAC+,FACW-

Salix tweedyi (Bebb ex Rose) Ball NI FACW FACW

Salix vestita Pursh NI FAC FAC

Salix viminalis L. FACW- NI FACW-

Salix wolfii Bebb NI NI FACW+ OBL FACW+,OBL

Salomonia cantoniensis Lour. FACW FACW

Salsola kali L. FACU FACU FACU FACU- FACU FACU FACU UPL UPL FACU+ NI UPL,FACU+

Salsola kali ssp. tragus (L.) Aellen FACU FACU FACU FACU- FACU FACU FACU UPL FACU FACU FACU UPL,FACU

Salsola soda L. FACW+ FACW+

Salvia lycioides Gray FACU NI FACU

Salvia lyrata L. UPL FAC- FACW- UPL FAC UPL,FACW-

Salvia penstemonoides Kunth & Bouché FACW+ FACW+

Salvinia auriculata Aubl. NI NI OBL NI OBL OBL

Salvinia minima Baker NI OBL OBL OBL

Samadera indica Gaertn. OBL OBL

Sambucus canadensis L. FACW FACW- FACW- FAC FAC FAC+ FACW UPL NI UPL,FACW

Sambucus cerulea Raf. NI NI FAC- FAC FACU FACU FAC FACU,FAC

Sambucus mexicana K. Presl ex DC. FAC FAC FACU NI FACU FACU,FAC

Sambucus racemosa L. FACU FACU FACU+ FACU NI FACU FACU FACU FACU FACU* FACU*,FACU+

Sambucus racemosa ssp. pubens var. melanocarpa (Gray) McMinn NI FACW* FACU- FACU FACU FACU-,FACW*

Samolus ebracteatus Kunth OBL FACW FACW* OBL FACW* FACW*,OBL

Samolus ebracteatus ssp. cuneatus (Small) R. Knuth OBL FACW+ OBL NI FACW+,OBL

Samolus vagans Greene OBL OBL

Samolus valerandi ssp. parviflorus (Raf.) Hultén OBL OBL OBL OBL OBL* OBL OBL NI OBL OBL*,OBL

Sanguinaria canadensis L. UPL UPL FACU-* UPL* UPL* UPL UPL*,FACU-*

Sanguisorba canadensis L. FACW+ FACW+ FACW+ FACW FACW FACW FACW,FACW+



North Central

North Plains

Central Plains




Sanguisorba menziesii Rydb. OBL FAC FAC,OBL

Sanguisorba minor Scop. FAC FAC FAC NI NI FACU* FACU- UPL FACU* UPL,FAC

Sanguisorba officinalis L. FACW NI FACW+ FACW FAC FAC,FACW+

Sanicula canadensis L. UPL* FACU FACU+ FACU* FACU* FACU* NI UPL*,FACU+

Sanicula kauaiensis St. John FACW+ FACW+

Sanicula marilandica L. UPL FACU* FACU- FACU FACU FACU* FACU FAC* UPL,FAC*

Sanicula maritima Kellogg ex S. Wats. FACW* FACW*

Sanicula odorata (Raf.) K.M. Pryer & L.R. Phillippe FACU FAC FAC+ FAC FAC FAC FACU,FAC+

Sanicula purpurea St. John & Hosaka FACW+ FACW+

Sapindus saponaria L. FACU- UPL* UPL FACU- FACU* NI UPL NI UPL*,FACU*

Sapium laurocerasus Desf. FACU FACU

Sapium sebiferum (L.) Roxb. FAC FAC FAC

Saponaria officinalis L. FACU- FACU FACU FACU FACU FACU FACU FACU- UPL FACU UPL,FACU

Sarcobatus vermiculatus (Hook.) Torr. FACU FACU FACU+ FACU+ FACU FACU+ FACU FACU,FACU+

Sarcocornia perennis (P. Mill.) A.J. Scott OBL OBL OBL NI OBL

Sarcocornia utahensis (Tidestrom) A.J. Scott FACW* FACW OBL OBL FACW*,OBL

Sarcopygme pacifica (Reinecke) Setchell & Christoph. FACU FACU

Sarcostemma clausum (Jacq.) J.A. Schultes FACW NI OBL FACW,OBL

Sarcostemma cynanchoides Dcne. NI FACU* FAC- FAC FAC FACU*,FAC

Sarracenia alata Wood OBL OBL OBL

Sarracenia flava L. OBL OBL OBL

Sarracenia leucophylla Raf. OBL OBL

Sarracenia minor Walt. OBL OBL

Sarracenia oreophila (Kearney) Wherry OBL OBL

Sarracenia psittacina Michx. OBL OBL

Sarracenia purpurea L. OBL OBL OBL OBL OBL

Sarracenia rubra Walt. OBL OBL

Sassafras albidum (Nutt.) Nees FACU- FACU FACU FACU FACU FACU-,FACU

Saururus cernuus L. OBL OBL OBL OBL OBL OBL

Saussurea americana D.C. Eat. NI FACW NI FACW

Saussurea angustifolia (Willd.) DC. FAC FAC

Saussurea nuda Ledeb. FAC FAC

Sauvagesia erecta L. FACW+ NI FACW+

Saxifraga adscendens L. NI NI FACU* FACW* UPL* UPL*,FACW*

Saxifraga aizoides L. FACW NI FACW

Saxifraga aprica Greene FACW FAC FACW FAC,FACW



North Central

North Plains

Central Plains




Saxifraga bronchialis L. NI FACU- UPL FACU- FACU UPL,FACU

Saxifraga californica Greene FACW NI FACW

Saxifraga calycina Sternb. FAC FAC

Saxifraga careyana Gray FAC FAC* FAC*,FAC

Saxifraga caroliniana Gray FACW FAC- FAC-,FACW

Saxifraga cernua L. NI FACW FACU FACU FACW* FAC FACW- FACW FACU,FACW

Saxifraga cespitosa L. NI FACU* FACU FAC NI* FAC FACU*,FAC

Saxifraga chrysantha Gray NI FACU FACU FACU FACU

Saxifraga ferruginea Graham NI NI FAC FACW* FAC FAC,FACW*

Saxifraga foliolosa R. Br. NI OBL FACW FACW,OBL

Saxifraga hieraciifolia Waldst. & Kit. FAC FAC

Saxifraga hirculus L. NI OBL NI OBL OBL

Saxifraga howellii Greene FAC+ FACW* FAC+,FACW*

Saxifraga hyperborea R. Br. NI NI NI NI

Saxifraga integrifolia Hook. NI FACW FACW* NI FACW*,FACW

Saxifraga lyallii Engl. NI FACW FACW FACW

Saxifraga marshallii Greene FACW FACW* FACW*,FACW

Saxifraga mertensiana Bong. NI FACW FACW FACW FACW

Saxifraga michauxii Britt. FACU FACW- FACU,FACW-

Saxifraga micranthidifolia (Haw.) Steud. OBL FACW+ FACW+,OBL

Saxifraga nelsoniana ssp. nelsoniana D. Don FAC FAC

Saxifraga nidifica Greene NI FACW* FACW FACW FACW*,FACW

Saxifraga nudicaulis D. Don FACW FACW

Saxifraga nuttallii Small OBL FACW FACW,OBL

Saxifraga occidentalis S. Wats. FAC NI FAC FAC

Saxifraga odontoloma Piper NI NI FACW- FACW+ FACW+ FACW FACW-,FACW+

Saxifraga oppositifolia L. FAC NI FACU- FAC FACU-,FAC

Saxifraga oregana T.J. Howell NI NI OBL FACW+ OBL FACW+,OBL

Saxifraga paniculata P. Mill. UPL FAC UPL,FAC

Saxifraga pensylvanica L. OBL OBL OBL OBL

Saxifraga rhomboidea Greene NI NI FAC- FAC FAC FAC-,FAC

Saxifraga rivularis L. OBL NI NI FACW FACW FACW NI* OBL FACW,OBL

Saxifraga sibirica L. FACW FACW

Saxifraga texana Buckl. FAC FAC* FAC FACW FAC*,FACW

Saxifraga tolmiei Torr. & Gray NI FAC* NI FACU* NI FACU*,FAC*

Saxifraga tricuspidata Rottb. UPL* FACW- FACU UPL*,FACW-



North Central

North Plains

Central Plains




Saxifraga virginiensis Michx. FAC- FAC- FAC- FAC FAC-,FAC

Scaevola chamissoniana Gaud. FACW* FACW*

Scaevola glabra Hook. & Arn. FACW FACW

Scaevola mollis Hook. & Arn. FAC FAC

Scaevola plumieri (L.) Vahl FAC* FAC UPL UPL,FAC

Scaevola procera Hbd. FACU FACU

Scaevola sericea Vahl NI FACU FACU

Scaphyglottis modesta (Reichenb. f.) Schlechter FACW FACW

Schefflera actinophylla (Endl.) H.A.T. Harms NI NI UPL UPL

Schefflera gleasonii (Britt. & Wilson) Alain OBL OBL

Scheuchzeria palustris L. OBL OBL OBL NI NI OBL OBL OBL OBL

Schinus terebinthifolius Raddi FAC NI NI FACW FACU- FACU-,FACW

Schizachne purpurascens (Torr.) Swallen FACU- FACU+ FACU FACU FACU FACU UPL FAC UPL,FAC

Schizachyrium gracile (Spreng.) Nash FAC* NI FAC*

Schizachyrium maritimum (Chapman) Nash FAC+ FAC+

Schizachyrium rhizomatum (Swallen) Gould FACW- FACW-

Schizachyrium scoparium (Michx.) Nash FACU- FACU FACU- FACU FACU FACU+ FACU FACU FACU NI FACU-,FACU+

Schizachyrium stoloniferum Nash FACU FACU

Schizaea fluminensis Miers ex Sturm OBL OBL

Schizaea poeppigiana Sturm FACU FACU

Schizaea pusilla Pursh OBL OBL

Schizaea robusta Baker OBL OBL

Schizostachyum glaucifolium (Rupr.) Munro FACW* FACW*

Schlegelia brachyantha Griseb. FACW FACW

Schoenolirion albiflorum (Raf.) R.R. Gates OBL OBL

Schoenolirion croceum (Michx.) Wood OBL OBL OBL

Schoenolirion wrightii Sherman OBL FACW+ FACW+,OBL

Schoenus calostachyus (R. Br.) Poir. FAC FAC

Schoenus nigricans L. OBL OBL OBL OBL OBL

Schoenus tendo Hook. FAC FAC

Schradera exotica (J.F. Gmel.) Standl. FACW FACW

Schultesia heterophylla Miq. OBL OBL

Schwalbea americana L. FACU FAC UPL UPL,FAC

Scirpodendron ghaeri (Gaertn.) Merr. OBL OBL

Scirpus acutus Muhl. ex Bigelow OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL* OBL*,OBL

Scirpus americanus Pers. OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL



North Central

North Plains

Central Plains




Scirpus ancistrochaetus Schuyler OBL OBL

Scirpus atrocinctus Fern. FACW+ OBL NI OBL FACW+,OBL

Scirpus atrovirens Willd. OBL OBL OBL OBL OBL OBL OBL NI OBL OBL

Scirpus californicus (C.A. Mey.) Steud. OBL OBL OBL OBL OBL OBL

Scirpus cernuus Vahl NI OBL OBL OBL

Scirpus cespitosus L. OBL OBL OBL OBL OBL OBL OBL

Scirpus clementis M.E. Jones FAC FAC

Scirpus clintonii Gray FACU FACU- FACU-,FACU

Scirpus congdonii Britt. FACW* FACW OBL FACW*,OBL

Scirpus cubensis Poepp. & Kunth OBL OBL OBL

Scirpus cylindricus (Torr.) Britt. OBL OBL OBL

Scirpus cyperinus (L.) Kunth FACW+ OBL OBL OBL OBL OBL FACW+,OBL

Scirpus deltarum Schuyler FACW+ NI OBL FACW+,OBL

Scirpus diffusus Schuyler NI*

Scirpus divaricatus Ell. OBL OBL OBL OBL OBL

Scirpus erectus Poir. OBL OBL OBL

Scirpus etuberculatus (Steud.) Kuntze OBL OBL OBL OBL OBL

Scirpus expansus Fern. OBL OBL OBL OBL

Scirpus flaccidifolius (Fern.) Schuyler OBL OBL OBL

Scirpus fluviatilis (Torr.) Gray OBL OBL OBL OBL OBL NI NI OBL OBL OBL OBL

Scirpus georgianus Harper OBL OBL OBL OBL OBL OBL

Scirpus hallii Gray OBL OBL OBL OBL OBL OBL

Scirpus hattorianus Makino OBL NI OBL OBL

Scirpus heterochaetus Chase OBL OBL OBL OBL OBL OBL OBL OBL

Scirpus juncoides Roxb. OBL OBL

Scirpus koilolepis (Steud.) Gleason NI FACW+ FACW+ FACW FACW OBL FACW,OBL

Scirpus litoralis Schrad. OBL OBL

Scirpus longii Fern. OBL OBL OBL

Scirpus maritimus L. OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL

Scirpus microcarpus J.& K. Presl OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL

Scirpus molestus M.C. Johnston OBL NI OBL OBL

Scirpus mucronatus L. NI NI NI OBL OBL

Scirpus nevadensis S. Wats. OBL OBL OBL OBL OBL OBL

Scirpus pallidus (Britt.) Fern. OBL OBL OBL OBL OBL OBL OBL OBL OBL

Scirpus X peckii Britt. (pro sp.) OBL OBL

Scirpus pedicellatus Fern. OBL OBL OBL



North Central

North Plains

Central Plains




Scirpus pendulus Muhl. OBL OBL OBL OBL OBL OBL NI NI NI OBL OBL

Scirpus polyphyllus Vahl OBL OBL OBL OBL

Scirpus pungens Vahl FACW+ OBL NI OBL OBL OBL OBL OBL OBL OBL OBL NI FACW+,OBL

Scirpus purshianus Fern. OBL OBL OBL OBL

Scirpus robustus Pursh OBL OBL OBL NI OBL OBL

Scirpus rollandii Fern. OBL FACW FACW NI FACW,OBL

Scirpus rufus var. neogaeus Fern. OBL OBL

Scirpus saximontanus Fern. OBL NI NI OBL OBL OBL NI OBL* OBL*,OBL

Scirpus setaceus L. NI NI FACW* FACW*

Scirpus smithii Gray OBL OBL OBL OBL

Scirpus subterminalis Torr. OBL OBL OBL OBL OBL OBL OBL OBL

Scirpus tabernaemontani K.C. Gmel. OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL

Scirpus torreyi Olney OBL OBL NI OBL OBL

Scirpus triqueter L. OBL OBL

Scirpus tuberosus Desf. NI OBL NI OBL OBL

Scleranthus annuus L. FACU- FACU FACU NI FACU- FACU UPL FACU UPL,FACU

Scleria baldwinii (Torr.) Steud. FACW+ FACW+ FACW+

Scleria biflora Roxb. FAC FAC

Scleria caricina (R. Br.) Benth. FACW* FACW*

Scleria ciliaris Nees FAC FAC

Scleria ciliata Michx. FAC FAC FAC FACU* FAC FAC FACU*,FAC

Scleria cubensis Boeckl. OBL OBL

Scleria eggersiana Boeckl. OBL OBL

Scleria georgiana Core FACW FACW+ FACW FACW,FACW+

Scleria hirtella Sw. FACW- NI OBL FACW-,OBL

Scleria laevis Retz. FAC FAC

Scleria laxa R. Br. FAC FAC

Scleria lithosperma (L.) Sw. FACW- UPL FAC* UPL,FACW-

Scleria microcarpa Nees ex Kunth OBL OBL

Scleria minor W. Stone FACW FACW FACW- FACW-,FACW

Scleria mitis Berg. OBL OBL

Scleria muehlenbergii Steud. FAC+ FAC OBL FAC,OBL

Scleria novae-hollandiae Boeckl. FAC FAC

Scleria oligantha Michx. FACU+ FACU FACU+ FAC OBL* FACU,OBL*

Scleria pauciflora Muhl. ex Willd. FACU+ FAC+ FACU* FAC FACW NI FACU*,FACW

Scleria pauciflora var. curtissii (Britt.) Fairey FAC FAC



North Central

North Plains

Central Plains




Scleria polycarpa Boeckl. FAC FAC

Scleria pterota var. melaleuca (Reichenb. ex Schlecht. & Cham.) Standl. FACW FACW

Scleria reticularis Michx. OBL FACW+ OBL FACW OBL FACW,OBL

Scleria rugosa R. Br. FAC FAC

Scleria scindens Nees ex Kunth FACW FACW

Scleria scrobiculata Nees & Meyer FAC FAC

Scleria secans (L.) Urban FACW FACW

Scleria sumatrensis Retz. FACW FACW

Scleria testacea Nees FACU FACU

Scleria triglomerata Michx. FAC FAC FAC FAC FAC FACW FAC,FACW

Scleria verticillata Muhl. ex Willd. OBL OBL OBL OBL NI OBL

Sclerolepis uniflora (Walt.) B.S.P. OBL OBL OBL

Sclerolinon digynum (Gray) Rogers FAC FACW FAC,FACW

Scolochloa festucacea (Willd.) Link OBL OBL OBL OBL OBL OBL

Scoparia dulcis L. FAC FACU* FAC FACU*,FAC

Scrophularia atrata Pennell FACU* FACU*

Scrophularia californica Cham. & Schlecht. FAC FAC

Scrophularia lanceolata Pursh FACU+ NI FACU+ FAC- FAC FAC* FACW UPL FAC NI* UPL,FACW

Scrophularia marilandica L. FACU- FACU* FACU-* FACU FACU FACU FACU-*,FACU

Scrophularia minutiflora Pennell OBL OBL

Scutellaria arenicola Small FAC FAC

Scutellaria bolanderi Gray FACW FACW

Scutellaria cardiophylla Engelm. & Gray FAC FAC FAC

Scutellaria X churchilliana Fern. (pro sp.) FACW NI FACW

Scutellaria floridana Chapman OBL OBL

Scutellaria galericulata L. OBL OBL OBL OBL OBL FACW+ OBL OBL OBL OBL OBL FACW+,OBL

Scutellaria integrifolia L. FACW FAC NI FACW- FAC,FACW

Scutellaria lateriflora L. FACW+ FACW+ OBL FACW OBL FACW+ OBL FACW+ FACW* NI FACW*,OBL

Scutellaria nervosa Pursh FAC FAC FAC FAC

Scutellaria ocmulgee Small FACW* FACW*

Scutellaria ovata Hill FACU FACU FACU FACU FACU FACU

Scutellaria parvula Michx. UPL FACU- FACU* FACU FACU UPL NI UPL,FACU

Scutellaria siphocamyploides Vatke FACU* FACU*

Scutellaria thieretii Shinners FACW NI FACW

Scyphiphora hydrophyllacea Gaertn. OBL OBL

Sebastiania corniculata (Vahl) Muell.-Arg. FAC FAC



North Central

North Plains

Central Plains




Sebastiania fruticosa (Bartr.) Fern. FACW FAC FAC,FACW

Sechium edule (Jacq.) Sw. NI NI NI

Securidaca virgata Sw. FAC FAC

Sedella congdonii (Eastw.) Britt. & Rose FACU FACU

Sedella leiocarpa H.K. Sharsmith FAC FAC

Sedella pumila (Benth.) Britt. & Rose FAC FAC

Sedum integrifolium ssp. integrifolium (Raf.) A. Nels. NI NI FACU NI FACU FAC FACU,FAC

Sedum pulchellum Michx. FACU UPL FACU- FACU NA* UPL,FACU

Sedum pusillum Michx. FAC FAC

Sedum rhodanthum Gray NI NI FAC- FACW+ FACW FAC-,FACW+

Sedum rosea (L.) Scop. FACU- FACU- NI NI NI NI FACU-

Selaginella apoda (L.) Spring FACW FACW+ FACW+ FACW- FACW-,FACW+

Selaginella arbuscula (Kaulfuss) Spring NI

Selaginella armata Baker FACW* OBL FACW*,OBL

Selaginella cordifolia (Desv. ex Poir.) Spring OBL OBL

Selaginella deflexa Brack. OBL OBL

Selaginella krugii Hieron. FACW FACW

Selaginella laxifolia Baker FACW FACW

Selaginella ludoviciana (A. Braun) A. Braun FACW FACW

Selaginella ovifolia Baker OBL OBL

Selaginella selaginoides (L.) Link FACW FACW+ FAC FACW+ FACU FACU,FACW+

Selaginella substipitata Spring OBL OBL

Selaginella tenella (Beauv.) Spring OBL OBL

Selaginella uncinata (Desv. ex Poir.) Spring OBL OBL

Selaginella willdenowii (Desv. ex Poir.) Baker NI FACW FACW

Selenia dissecta Torr. & Gray FACW+ FACW FACW,FACW+

Selenia grandis R.F. Martin FACW+ FACW+

Selenia jonesii Cory FACW FACW

Senecio amplectens Gray NI NI FACW FACW NI FACW

Senecio anonymus Wood UPL FACU- NI UPL,FACU-

Senecio aphanactis Greene NI

Senecio atropurpureus (Ledeb.) Fedtsch. FAC FAC

Senecio aureus L. FACW FACW FACW FACW NI FACW FACW

Senecio bernardinus Greene FACU FACU

Senecio bolanderi Gray NI NI

Senecio clarkianus Gray FACW FACW



North Central

North Plains

Central Plains




Senecio clevelandii Greene FACW FACW

Senecio congestus (R. Br.) DC. FACW+ FACW+ FACW FACW,FACW+

Senecio crassulus Gray OBL NI NA* FAC* FACU FACU,OBL

Senecio crocatus Rydb. NI FACW FAC+ FAC+,FACW

Senecio cymbalaria Pursh NI NI UPL UPL

Senecio cymbalarioides Buek NI OBL* FACW FACW OBL FAC* FAC*,OBL

Senecio debilis Nutt. NI FACW FACW FACW

Senecio dimorphophyllus Greene NI NI FACU NI FACU

Senecio eremophilus Richards. OBL FAC NI FACU FACU FACU UPL UPL,OBL

Senecio eurycephalus var. eurycephalus Torr. & Gray ex Gray NI NI UPL UPL

Senecio glabellus Poir. OBL FACW+ OBL NI FACW+ FACW FACW,OBL

Senecio hydrophiloides Rydb. NI FACW- OBL FACW-,OBL

Senecio hydrophilus Nutt. OBL OBL OBL OBL OBL NI OBL

Senecio indecorus Greene FACW* NI FACW FACW FACU FACU,FACW

Senecio integerrimus Nutt. FAC* FAC FACW- FAC FACU FAC FACU,FACW-

Senecio jacobaea L. NI NI FACU* FAC* FACU*,FAC*

Senecio lugens Richards. NI FAC FAC FAC

Senecio macounii Greene FACU UPL* UPL*,FACU

Senecio obovatus Muhl. ex Willd. FACU- FACU FACU-* FACU+ FACU FACU-*,FACU+

Senecio pauciflorus Pursh FACU* NI FACW* FAC FACW FAC FACU*,FACW

Senecio pauperculus Michx. FAC FACW FAC+ FAC FACW NI FACW+ FACW FAC FAC,FACW+

Senecio plattensis Nutt. UPL FACU FACU- FACU- FACU UPL* UPL* UPL NI UPL*,FACU

Senecio pseudaureus Rydb. FAC* FACW FACW FACU FACW FACW FACW FACW* FACU,FACW

Senecio pseudoarnica Less. NI FACU FACU

Senecio quaerens Greene FACW* FACW*

Senecio salignus DC. NI FAC FAC

Senecio schweinitzianus Nutt. FACW FACW FACW

Senecio scorzonella Greene NI FAC FAC

Senecio serra Hook. NI NI FACU FACU* FAC FACU*,FAC

Senecio sphaerocephalus Greene NI FACU- FACW FACU-,FACW

Senecio streptanthifolius Greene NI NI FACU FACU FAC FACU,FAC

Senecio tampicanus DC. FACW+ FACW FACW NI FACW,FACW+

Senecio tomentosus Michx. FACU FAC- NI FACU FACU,FAC-

Senecio triangularis Hook. NI NI OBL OBL FACW+ OBL FACW FACW,OBL

Senecio vulgaris L. FACU FACU UPL* FAC FAC FACU FACU UPL FACU NI* FACU FAC UPL*,FAC

Senecio werneriifolius (Gray) Gray NI NI UPL FACU UPL FACU* UPL,FACU



North Central

North Plains

Central Plains




Senna alata (L.) Roxb. FACU- FACU NI FACW FACU FACU-,FACW

Senna bicapsularis (L.) Roxb. FAC- FAC FAC-,FAC

Senna X floribunda (Cav.) Irwin & Barneby FAC- FAC-

Senna hebecarpa (Fern.) Irwin & Barneby FAC FAC+ FACW FAC,FACW

Senna hirsuta var. hirsuta (L.) Irwin & Barneby NI FAC FAC

Senna marilandica (L.) Link FAC+ FAC FACW FAC FAC FAC,FACW

Senna mexicana var. chapmanii (Isely) Irwin & Barneby FAC* FAC*

Senna nitida (L.C. Rich.) Irwin & Barneby FACW FACW

Senna obtusifolia (L.) Irwin & Barneby NI FACU+ NI NI NI UPL NI UPL,FACU+

Senna pendula var. stahlii (Urban) Irwin & Barneby FAC FAC

Senna surattensis (Burm. f.) Irwin & Barneby FAC- NI UPL UPL,FAC-

Serenoa repens (Bartr.) Small FACU NI FACU,FAC*

Keys FAC*

Sesbania cannabina (Retz.) Pers. FAC* FAC*

Sesbania drummondii (Rydb.) Cory FACW FACW FACW

Sesbania emerus (Aubl.) Urban NI OBL OBL

Sesbania exaltata (Raf.) Rydb. ex A.W. Hill FAC FACW- FACW- FACW FACW- FACW FAC FAC,FACW

Sesbania punicea (Cav.) Benth. FAC+ FACW- FAC+,FACW-

Sesbania sericea (Willd.) Link NI FACW FACW

Sesbania sesban (L.) Merr. FACW+ NI FACW+

Sesbania tomentosa Hook. & Arn. NI UPL UPL

Sesuvium maritimum (Walt.) B.S.P. FACW FACW NI FACW OBL FACW,OBL

Sesuvium portulacastrum (L.) L. NI FACW FACW FACW FAC FAC,FACW

Sesuvium sessile Pers. NI FACW FACW

Sesuvium trianthemoides Correll OBL* OBL*

Sesuvium verrucosum Raf. NI FACW FACW FACW FACW+ NI FACW FACW,FACW+

Setaria faberi Herrm. UPL UPL FACU+ UPL UPL UPL UPL NI UPL,FACU+

Great Lakes Plain FACU

Setaria glauca (L.) Beauv. FAC FAC FACU NI FAC FAC UPL NI FAC FAC* UPL,FAC

Setaria italica (L.) Beauv. FACU FACU FACU FACU FACU FACU FACU FAC NI NI FACU,FAC

Setaria macrosperma (Scribn. & Merr.) K. Schum. FAC FAC

Setaria magna Griseb. FACW FACW+ FACW NI FACW+ FACW,FACW+

Setaria palmifolia (Koenig) Stapf NI FACU FACU

Setaria parviflora (Poir.) Kerguelen FAC FAC FAC FAC FAC FAC FAC NI FAC FAC FAC

Setaria pumila (Poir.) Roemer & J.A. Schultes FAC NI NI NI FAC NI NI NI FAC FAC NI FAC



North Central

North Plains

Central Plains




Setaria sphacelata (Schumacher) Stapf & C.E. Hubbard NI OBL OBL

Setaria verticillata (L.) Beauv. FAC FAC FAC FAC FAC FAC FACU FACU FACU- FACU FACU FACU-,FAC

Seymeria cassioides (J.F. Gmel.) Blake FAC FAC UPL* UPL*,FAC

Shepherdia argentea (Pursh) Nutt. NI NI NI NI NI FACU- NI UPL UPL,FACU-

Shepherdia canadensis (L.) Nutt. UPL UPL FACU NI FAC* UPL NI UPL UPL,FAC*

Shortia galacifolia Torr. & Gray FACU FACU

Sibara virginica (L.) Rollins UPL FAC FACU- FACU FAC FAC* UPL,FAC

Sibbaldia procumbens L. NI NI NI NI FACU NI NI NI FACU

Sicyos angulatus L. FACU FACW- FACW- FAC FAC FACW- NI FACU,FACW-

Sida hermaphrodita (L.) Rusby FAC UPL FACU UPL,FAC

Sida rhombifolia L. UPL FACU FACU UPL FACU* FAC FACU UPL,FAC

Sida spinosa L. UPL* FACU FACU UPL UPL UPL UPL NI UPL*,FACU

Sidalcea calycosa M.E. Jones OBL OBL

Sidalcea campestris Greene NI

Sidalcea candida Gray NI FAC FACW+ FACW FAC,FACW+

Sidalcea covillei Greene FACU* FACU*

Sidalcea hendersonii S. Wats. FACW+ FACW+

Sidalcea hirsuta Gray ex Benth. OBL OBL

Sidalcea malviflora ssp. virgata (T.J. Howell) C.L. Hitchc. NI

Sidalcea nelsoniana Piper FAC FAC

Sidalcea neomexicana Gray NI NI FACW FACW FACW FACW FACW FACW

Sidalcea oregana (Nutt. ex Torr. & Gray) Gray NI FACU FACW- OBL FACU,OBL

Sidalcea pedata Gray OBL OBL

Sidalcea ranunculacea Greene OBL OBL

Sidalcea reptans Greene OBL OBL

Sidalcea stipularis J.T. Howell & True OBL OBL

Sideroxylon celastrinum (Kunth) T.D. Pennington FAC* NI FAC*,FACW

Keys FACW

Sideroxylon lanuginosum ssp. lanuginosum Michx. FACU FACU

Sideroxylon lanuginosum ssp. rigidum (Gray) T.D. Pennington FACU FACU+ FACU,FACU+

Sideroxylon lycioides L. FACW FACW FACW FAC FAC,FACW

Sideroxylon reclinatum ssp. reclinatum Michx. FAC FAC

Silene acaulis (L.) Jacq. UPL NI NI FAC UPL UPL UPL UPL,FAC

Silene menziesii Hook. UPL UPL FAC FAC FAC FAC FAC UPL,FAC

Silene nivea (Nutt.) Muhl. ex Otth FAC FAC FACW FACW FACW FAC,FACW

Silene uralensis (Rupr.) Bocquet NI NI UPL FACW- NI UPL UPL,FACW-



North Central

North Plains

Central Plains




Silphium perfoliatum L. FACU FAC+ FACW- FACW FAC FAC FACU,FACW

Silphium terebinthinaceum Jacq. UPL* UPL FAC- UPL*,FAC-

Siphoneugena densiflora Berg OBL OBL

Sisymbrium altissimum L. FACU- FACU FACU UPL FACU FACU+ FAC FACU- FACU- FACU FACU UPL UPL,FAC

Sisyrinchium acre Mann NI FACU* FACU*

Sisyrinchium albidum Raf. FAC FAC* FACU NI FACU FACU,FAC

Sisyrinchium angustifolium P. Mill. FACW- FAC FACW- FACU FAC FACW- NI FACW- FACU,FACW-

Sisyrinchium atlanticum Bickn. FACW FACW- FACW FACW FACW-,FACW

Sisyrinchium bellum S. Wats. FACW- FAC+ FAC+,FACW-

Sisyrinchium biforme Bickn. FAC FAC FAC

Sisyrinchium californicum (Ker-Gawl. ex Sims) Ait. FACW+ OBL FACW+,OBL

Sisyrinchium cernuum (Bickn.) Kearney NI FAC FAC

Sisyrinchium demissum Greene NI OBL OBL OBL OBL

Sisyrinchium elmeri Greene OBL OBL OBL

Sisyrinchium funereum Bickn. FACW FACW

Sisyrinchium fuscatum Bickn. FACU FACU NI FACU

Sisyrinchium halophilum Greene NI FACW NI FACW* FACW*,FACW

Sisyrinchium idahoense Bickn. NI NI OBL OBL FACW OBL* FACW,OBL

Sisyrinchium littorale Greene FACW* FACW* FACW*

Sisyrinchium longipes (Bickn.) Kearney & Peebles FACW FACW

Sisyrinchium minus Engelm. & Gray FACU+ FACU+ NI FACU+

Sisyrinchium montanum Greene FAC NI FAC+ FAC FAC FAC+ FACW FAC- NI FAC-,FACW

Sisyrinchium mucronatum Michx. FAC+ FACW- FACW- FAC+ FAC+,FACW-

Sisyrinchium nashii Bickn. NI

Sisyrinchium rosulatum Bickn. FAC FAC NI NI FAC

Sisyrinchium sagittiferum Bickn. FAC FACW+ FAC,FACW+

Sisyrinchium sarmentosum Suksdorf ex Greene NI OBL OBL

Sisyrinchium septentrionale Bickn. FACW+ FACW+

Sium carsonii Dur. ex Gray OBL OBL OBL

Sium suave Walt. OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL

Sloanea berteriana Choisy ex DC. FAC FAC

Smilax auriculata Walt. FACU FACU

Smilax bona-nox L. FACU FAC FACU+ FAC FAC FACU,FAC

Smilax glauca Walt. FACU FAC FACU NI FAC UPL* NI UPL*,FAC

Smilax havanensis Jacq. NI FAC FAC

Smilax herbacea L. FAC FAC FAC FAC FAC FAC NI FAC



North Central

North Plains

Central Plains




Smilax jamesii G. Wallace FACW FACW

Smilax laurifolia L. OBL FACW+ OBL FACW+,OBL

Smilax melastomifolia Sm. FACU FACU

Smilax pseudochina L. FAC+ FAC FAC,FAC+

Smilax pulverulenta Michx. FACU FAC FACU FACU FACU,FAC

Smilax pumila Walt. UPL NI UPL

Smilax rotundifolia L. FAC FAC FAC NI FAC FAC FAC

Smilax smallii Morong NI FACU FACU FAC FACU,FAC

Smilax tamnoides L. FAC FAC+ FAC FAC FAC FAC FAC,FAC+

Smilax walteri Pursh OBL OBL OBL* OBL*,OBL

Smythea lanceata (Tul.) Summerhayes FAC FAC

Solanum americanum P. Mill. FACU- FACU+ FACU- FACU FACU FACU FAC FACU+ FACU FAC FAC NI FACU-,FAC

Solanum antillarum O.E. Schulz OBL OBL

Solanum bahamense L. FAC* FAC*

Solanum campechiense L. NI OBL OBL

Solanum capsicoides All. NI NI FAC NI FAC

Solanum carolinense L. UPL FACU FACU- UPL UPL UPL UPL UPL UPL NI UPL,FACU

Solanum donianum Walp. FAC* NI FAC*

Solanum douglasii Dunal FACU FAC- FAC FAC FACU,FAC

Solanum dulcamara L. FAC FAC FAC FACU FAC FAC FAC+ FAC+ FACU,FAC+

Solanum erianthum D. Don FAC* NI NI FAC*

Solanum jamaicense P. Mill. NI FAC FAC

Solanum mammosum L. NI FACW FACW

Solanum nigrum L. FACU NI FACU* FACU FACU FACU FACU FACU*,FACU

Solanum pseudogracile Heiser FACU FACU

Solanum rugosum Dunal FACU FACU

Solanum tuberosum L. NI UPL UPL NI NI NI NI NI UPL

Solanum woodburyi Howard OBL OBL

Solidago arguta var. boottii (Hook.) Palmer & Steyermark UPL UPL UPL NI FACU UPL,FACU

Solidago X asperula Desf. (pro sp.) OBL* OBL*

Solidago caesia L. FACU FACU FACU FACU FACU

Solidago canadensis L. FACU FACU FACU FACU FACU FACU+ FACU FACU FACU FACU FACU NI FACU,FACU+

Solidago canadensis var. salebrosa (Piper) M.E. Jones FACU FACU FACU FACU NI FACU FAC- FACU* FACU FACU*,FAC-

Solidago canadensis var. scabra Torr. & Gray FACU- FACU+ FACU FACU FACU FACU FACU FACU FACU+ FACU NI FACU-,FACU+

Solidago confinis Gray FACW* FAC FAC,FACW*

Solidago fistulosa P. Mill. FACW FAC+ FAC+,FACW



North Central

North Plains

Central Plains




Solidago flexicaulis L. FACU FACU FACU FACU FACU FACU

Solidago gigantea Ait. FACW FACW FACW FACW FACW FAC FACW- FACW FACW- FAC* FAC*,FACW

Solidago glomerata Michx. FAC FAC

Solidago gracillima Torr. & Gray OBL OBL OBL

Solidago houghtonii Torr. & Gray ex Gray OBL OBL OBL

Solidago latissimifolia P. Mill. OBL OBL OBL

Solidago leavenworthii Torr. & Gray FAC+ FAC+

Solidago multiradiata Ait. NI NI NI FACU FACU FACU FACU FACU FACU

Solidago ohioensis Riddell OBL OBL OBL

Solidago patula Muhl. ex Willd. OBL OBL OBL OBL* OBL*,OBL

Solidago patula var. strictula Torr. & Gray OBL OBL NI FACW FACW,OBL

Solidago puberula Nutt. FACU- FACU NI FACU-,FACU

Solidago riddellii Frank ex Riddell OBL OBL OBL OBL OBL

Solidago rigida L. UPL FACU FACU- FACU- FACU FACU FACU FACU- FACU UPL,FACU

Solidago rugosa P. Mill. FAC FAC FAC+ NI FAC NI NI FAC,FAC+

Solidago sempervirens L. FACW FACW FACW- FACW- NI FACW-,FACW

Solidago spathulata DC. FACU- FACU NI NI NI FACU FACU- FACU FACU FACU-,FACU

Solidago spectabilis (D.C. Eat.) Gray NI FACW FACW FACW FACW

Solidago stricta Ait. FACW OBL FACW- FACW-,OBL

Solidago uliginosa Nutt. OBL OBL OBL NI OBL

Solidago verna M.A. Curtis OBL OBL

Soliva sessilis Ruiz & Pavón NI FACU- UPL* NI FAC* UPL*,FAC*

Sonchus arvensis L. UPL UPL FAC- FAC FAC FACU FACU FACU+ FACU FACU UPL,FAC

Sonchus asper (L.) Hill FAC FAC+ FAC FACW FACW FAC- FACW FACU FAC- FAC FACU FAC FACU FACU,FACW

Sonchus oleraceus L. UPL FACU FACU FACU FACU UPL* UPL* UPL UPL NI* UPL FAC FACU UPL*,FAC

Sonneratia alba J.E. Smith OBL OBL

Sophora tomentosa L. FAC UPL FACU UPL,FAC

Sorbus americana Marsh. FACU FACU FAC+ FACU,FAC+

Sorbus decora (Sarg.) Schneid. FAC* UPL UPL,FAC*

Sorbus scopulina Greene NI FACU NI FACU* FACU- FACU FACU* FACU* FACU-,FACU

Sorbus sitchensis M. Roemer NI NI NI FACU* FACU*

Sorghastrum nutans (L.) Nash UPL FACU FACU+ FACU FACU FACU UPL FACU UPL,FACU+

Sorghastrum secundum (Ell.) Nash FACU- FACU-

Sorghum bicolor (L.) Moench UPL FACU UPL UPL NI FACU* UPL* FACU NI FAC* NI FACU- UPL*,FAC*

Sorghum bicolor ssp. arundinaceum (Desv.) de Wet & Harlan FAC FAC

Sorghum halepense (L.) Pers. FACU FACU FACU FACU FACU FACU FACU+ FACU+ FACU FACU FAC FACU- FACU-,FAC



North Central

North Plains

Central Plains




Sparganium americanum Nutt. OBL OBL OBL NI OBL OBL OBL

Sparganium androcladum (Engelm.) Morong OBL OBL OBL NI OBL OBL OBL

Sparganium angustifolium Michx. OBL NI OBL OBL NI OBL OBL OBL OBL OBL OBL

Sparganium erectum L. OBL OBL OBL OBL OBL NI OBL NI OBL

Sparganium eurycarpum Engelm. ex Gray OBL NI OBL OBL OBL OBL OBL OBL OBL OBL OBL

Sparganium fluctuans (Morong) B.L. Robins. OBL OBL OBL OBL

Sparganium glomeratum Laestad. ex Beurling OBL OBL

Sparganium hyperboreum Laestad. ex Beurling OBL OBL

Sparganium nutans L. OBL OBL NI OBL OBL OBL OBL OBL OBL

Spartina alterniflora Loisel. OBL OBL OBL OBL OBL OBL

Spartina bakeri Merr. FACW+ NI FACW+

Spartina X caespitosa A.A. Eat. (pro sp.) OBL OBL

Spartina cynosuroides (L.) Roth OBL OBL OBL OBL

Spartina densiflora Brongn. OBL OBL

Spartina foliosa Trin. OBL OBL

Spartina gracilis Trin. NI NI FACW FACW FACW FACW FACW FACW FACW

Spartina patens (Ait.) Muhl. FACW+ FACW FACW FACW NI OBL UPL UPL,OBL

Spartina pectinata Link OBL* OBL FACW+ FACW FACW FACW+ FACW OBL OBL FACW,OBL

Spartina spartinae (Trin.) Merr. ex A.S. Hitchc. OBL FACW+ FACW+,OBL

Spartina X townsendii H.& J. Groves (pro sp.) OBL OBL

Spathodea campanulata Beauv. FACU NI FACU

Spathoglottis plicata Blume UPL FACU UPL,FACU

Spergularia atrosperma R.P. Rossb. NI FACU FACU

Spergularia bocconii (Scheele) Foucaud ex Merino NI FAC* FAC*

Spergularia canadensis (Pers.) G. Don OBL FACW OBL FACW FACW,OBL

Spergularia diandra (Guss.) Held. & Sart. NI FACW FACW

Spergularia echinosperma (Celak.) Aschers. & Graebn. OBL OBL* OBL*,OBL

Spergularia macrotheca (Hornem.) Heynh. FAC FAC+ FAC,FAC+

Spergularia maritima (All.) Chiov. FACW NI FACU* NI NI FACU FACW FAC FACW* NI FACU*,FACW

Spergularia platensis (Camb.) Fenzl FACW+ OBL FACW+,OBL

Spergularia rubra (L.) J.& K. Presl FACU UPL FACU NI NI FACU FACU FAC- FAC- FAC UPL,FAC

Spergularia salina var. salina J.& K. Presl OBL OBL OBL OBL OBL OBL* OBL* OBL OBL OBL FAC FAC,OBL

Spermacoce glabra Michx. FACW FACW FACW+ FACW FACW FACW,FACW+

Spermacoce repens (DC.) Sessé & Moc. NI FAC FAC

Spermacoce sintenisii (Urban) Alain FAC FAC

Spermacoce tenuior L. FACU FACW FACU FACU,FACW



North Central

North Plains

Central Plains




Spermolepis divaricata (Walt.) Raf. ex Ser. FACU FAC- FACU FACW FACW* FACW* FACU,FACW

Sphaeromeria potentilloides (Gray) Heller FACW FAC- FACW FAC-,FACW

Sphaerophysa salsula (Pallas) DC. NI FACU FACU FAC UPL NI UPL,FAC

Sphaerostephanos heterocarpus (Bl.) Holttum FAC FAC

Sphaerostephanos maemonensis (Wagner & Grether) Holttum FAC FAC

Sphenoclea zeylanica Gaertn. OBL NI OBL NI NI OBL OBL

Sphenomeris chinensis (L.) Maxon FAC* FAC*

Sphenomeris clavata (L.) Maxon UPL FACW UPL,FACW

Sphenopholis filiformis (Chapman) Scribn. UPL FACU- FACW+ UPL,FACW+

Sphenopholis obtusata (Michx.) Scribn. FAC- FAC+ FAC FAC FACW FACW+ FAC FACW- FAC FAC NI FAC-,FACW+

Sphenopholis X pallens (Biehler) Scribn. (pro sp.) FAC FACW NI NI NI FAC,FACW

Sphenopholis pensylvanica (L.) A.S. Hitchc. OBL OBL OBL OBL

Sphenosciadium capitellatum Gray OBL FACW OBL FACW,OBL

Spigelia loganioides (Torr. & Gray ex Endl. & Fenzl) A. DC. FACW FACW

Spiraea alba Du Roi FACW+ FACW+ FACW+ FACW NI FACW,FACW+

Spiraea alba var. latifolia (Ait.) Dippel FAC+ FACW FACW- NI FAC+,FACW

Spiraea betulifolia Pallas NI FAC* NI FACU* NI FACU* FACU*,FAC*

Spiraea douglasii Hook. UPL* NI FACW OBL NI UPL*,OBL

Spiraea japonica L. f. FACU- FACU+ UPL UPL,FACU+

Spiraea salicifolia L. FACW+ FACW OBL FACW,OBL

Spiraea stevenii (Schneid.) Rydb. FAC FAC

Spiraea tomentosa L. FACW- FACW FACW FACW NI NI FACW-,FACW

Spiraea virginiana Britt. FACU FACW FACU,FACW

Spiranthes adnata (Sw.) Benth. ex Fawcett NI FACW FACW

Spiranthes brevilabris Lindl. NI FACW- FAC- FAC-,FACW-

Spiranthes cernua (L.) L.C. Rich. FACW FACW FACW- FACW FACW FACW+ FACW* FACW FACW-,FACW+

Spiranthes confusa (Garay) Kartesz & Gandhi FAC* FAC*

Spiranthes cranichoides (Griseb.) Cogn. NI FACW FACW

Spiranthes diluvialis Sheviak NI NI FACW+ FACW+

Spiranthes elata (Sw.) L.C. Rich. UPL FAC UPL,FAC

Spiranthes graminea Lindl. OBL OBL

Spiranthes infernalis Sheviak NI

Spiranthes lacera (Raf.) Raf. FACU- FAC FAC+ FAC FAC FACU-,FAC+

Spiranthes laciniata (Small) Ames OBL FACW+ OBL FACW+,OBL

Spiranthes lanceolata (Aubl.) Léon FAC NI FAC FAC

Spiranthes lineata Lindl. FACW FACW



North Central

North Plains

Central Plains




Spiranthes longilabris Lindl. OBL* FACW FACW NI FACW,OBL*

Spiranthes lucida (H.H. Eat.) Ames FACW FACW* FACW+ FACW FACW*,FACW+

Spiranthes magnicamporum Sheviak FACU- NI UPL FAC FAC NI NI NI UPL,FAC

Spiranthes odorata (Nutt.) Lindl. OBL OBL OBL OBL

Spiranthes ovalis Lindl. FAC FAC FAC FAC FAC* FAC*,FAC

Spiranthes praecox (Walt.) S. Wats. OBL FACW FACW FACW,OBL

Spiranthes romanzoffiana Cham. OBL FACW+ OBL OBL NI OBL FACW FACW OBL OBL FACW,OBL

Spiranthes torta (Thunb.) Garay & Sweet FACU FAC FACU,FAC

Spiranthes tuberosa Raf. FACU- UPL UPL UPL UPL UPL,FACU-

Spiranthes vernalis Engelm. & Gray FAC FACW- FAC FACW- FACW- FACW- FACW FAC,FACW

Spirodela polyrrhiza (L.) Schleid. OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL

Spirodela punctata (G.F.W. Mey.) C.H. Thompson OBL OBL OBL OBL NI NI OBL OBL

Sporobolus airoides (Torr.) Torr. NI NI FAC FAC FAC FAC FAC FAC- FAC* FAC+ FAC-,FAC+

Sporobolus compositus var. compositus (Poir.) Merr. UPL* UPL UPL FACU FACU UPL* UPL UPL UPL UPL*,FACU

Sporobolus cryptandrus (Torr.) Gray UPL* UPL FACU- FACU FACU- FACU- FACU- UPL FACU- UPL UPL*,FACU

Sporobolus curtissii (Vasey ex Beal) Small ex Scribn. FACU+ FACU+

Sporobolus domingensis (Trin.) Kunth FACU FACU* FAC FACU*,FAC

Sporobolus flexuosus (Thurb. ex Vasey) Rydb. UPL FAC- FACU- UPL UPL UPL,FAC-

Sporobolus floridanus Chapman FAC FAC

Sporobolus giganteus Nash FAC UPL UPL UPL UPL,FAC

Sporobolus heterolepis (Gray) Gray UPL UPL FACU- UPL FACU UPL NI FACU- FACU* UPL,FACU

Sporobolus indicus (L.) R. Br. NI FACU+ FACU- FACU NI NI FACU NI FACU-,FACU+

Sporobolus jacquemontii Kunth FAC FAC FAC

Sporobolus neglectus Nash FACU-* UPL UPL UPL UPL UPL UPL NI UPL NI UPL,FACU-*

Sporobolus pyramidatus (Lam.) A.S. Hitchc. UPL* FAC UPL FAC FAC FACU- NI FACW NI UPL*,FACW

Sporobolus teretifolius Harper FACW FACW

Sporobolus texanus Vasey FAC FAC FAC* NI FAC*,FAC

Sporobolus vaginiflorus (Torr. ex Gray) Wood UPL UPL UPL UPL FACU UPL UPL NI NI* UPL,FACU

Sporobolus virginicus (L.) Kunth FACW+ FACW+ NI FACW+ FACW FAC* FAC*,FACW+

Stachydeoma graveolens (Chapman ex Gray) Small FACW* FACW*

Stachys ajugoides Benth. NI OBL OBL

Stachys albens Gray OBL OBL OBL

Stachys chamissonis Benth. OBL OBL

Stachys clingmanii Small FAC+ UPL FACU- UPL,FAC+

Stachys crenata Raf. FACU+ FAC FAC* FACU+,FAC

Stachys eplingii J. Nelson NI FAC FAC* FAC*,FAC



North Central

North Plains

Central Plains




Stachys floridana Shuttlw. ex Benth. NI FAC FAC FAC

Stachys hyssopifolia Michx. FACW+ OBL FACW+ FACW+,OBL

Stachys hyssopifolia var. ambigua Gray FACW FAC+ FACW+ FAC+,FACW+

Stachys hyssopifolia var. lythroides (Small) J. Nelson FACW FACW

Stachys mexicana Benth. FACW OBL FACW,OBL

Stachys nuttallii Shuttlw. ex Benth. FAC FAC NI FAC* FAC*,FAC

Stachys palustris L. OBL OBL OBL OBL OBL* OBL OBL FACW+ OBL FACW FACW,OBL

Stachys palustris ssp. pilosa (Nutt.) Epling NI NI NI NI NI NI FAC FACW- FACW+ NI FAC,FACW+

Stachys pycnantha Benth. FACW FACW

Stachys stricta Greene OBL OBL

Stachys tenuifolia Willd. FACW+ FACW- OBL FACW FACW FACW FACW-,OBL

Stachys tenuifolia var. latidens (Small ex Britt.) J. Nelson FAC FAC FAC

Stachys tenuifolia var. tenuifolia Willd. OBL OBL* FACW+ FAC NI NI FAC,OBL

Stachytarpheta jamaicensis (L.) Vahl FACU FACU FACU* FACU*,FACU

Stachytarpheta urticifolia Sims NI NI FAC* FAC*

Stackhousia intermedia F.M. Bailey FACU FACU

Stahlia monosperma (Tul.) Urban OBL OBL

Staphylea trifolia L. FAC FAC FAC FAC FAC FAC

Steinchisma hians (Ell.) Nash FACW OBL FACW FACW- FACW* FACW-,OBL

Stellaria alsine Grimm OBL OBL NI FAC FAC,OBL

Stellaria antillana Urban OBL OBL

Stellaria borealis Bigelow FACW OBL NI NI NI NI NI NI NI FACW,OBL

Stellaria borealis ssp. sitchana (Steud.) Piper NI NI FACW- OBL FAC FAC,OBL

Stellaria calycantha (Ledeb.) Bong. NI NI FACW* FACW FACW FACW FACW FACW*,FACW

Stellaria crassifolia Ehrh. FACW+ OBL OBL OBL FACW NI FACW FACW,OBL

Stellaria crispa Cham. & Schlecht. NI FACW* FAC+ FACW FAC FAC,FACW

Stellaria fontinalis (Short & Peter) B.L. Robins. FACW OBL FACW,OBL

Stellaria graminea L. FACU- FAC UPL FACU NI FAC FAC- UPL UPL,FAC

Stellaria humifusa Rottb. OBL OBL OBL OBL

Stellaria littoralis Torr. OBL OBL

Stellaria longifolia Muhl. ex Willd. FACW FACW- FACW+ FACW OBL FAC FACW FACW NI FAC FAC,OBL

Stellaria longipes Goldie FACU- OBL OBL NI FACW FACW+ FACW- FACW* FAC FACU-,OBL

Stellaria longipes ssp. longipes Goldie NI NI NI FACW* FACW FACW* FACW* FAC FAC,FACW

Stellaria media (L.) Vill. UPL* FACU FACU UPL UPL FACU- UPL FACU FACU FACU UPL* NI UPL*,FACU

Stellaria obtusa Engelm. NI FACW FACW NI FACW

Stellaria palustris (Murr.) Retz. FACU FAC* FACU,FAC*



North Central

North Plains

Central Plains




Stellaria prostrata Baldw. NI NI FAC* FAC*

Stellaria umbellata Turcz. ex Kar. & Kir. NI NI FACW FAC+ FACW* FACW FACW FAC+,FACW

Stemodia durantifolia (L.) Sw. OBL OBL FACW FACW,OBL

Stemodia maritima L. FACW+ FACW+

Stemonurus ammui (Kanehira) Sleumer OBL OBL

Stenandrium dulce (Cav.) Nees OBL NI OBL

Stenandrium tuberosum (L.) Urban FACW FACW

Stenanthium gramineum (Ker-Gawl.) Morong FACW FAC FAC FAC FAC,FACW

Stenanthium occidentale Gray NI FAC* FACW FAC*,FACW

Stenogyne calaminthoides Gray FAC FAC

Stenogyne kamehamehae Wawra FAC FAC

Stenogyne purpurea Mann FAC FAC

Stenogyne rotundifolia Gray FAC FAC

Stenotaphrum secundatum (Walt.) Kuntze NI FAC NI FAC+ NI FAC+ FAC NI FAC,FAC+

Sticherus bifidus (Willd.) Ching OBL OBL

Sticherus brevipubis (Christ) A.R. Sm. FACU FACU

Stictocardia tiliifolia (Desr.) Hallier f. FACU FACW FACU FACU,FACW

Stigmaphyllon bannisterioides (L.) C. Anderson FACW+ FACW+

Stillingia aquatica Chapman OBL OBL

Stipa diegoensis Swallen FACW* FACW*

Stipa nelsonii Scribn. NI NI NI NI NI NI FACU* FACU*

Stipa richardsonii Link FACU NI UPL NI NI UPL,FACU

Stokesia laevis (Hill) Greene FAC FAC

Streblus anthropophagorum (Seem.) Corner FACU FACU

Streptopus amplexifolius (L.) DC. FAC+ UPL FAC+ OBL NI FAC FACW FAC- FAC* FAC UPL,OBL

Streptopus roseus Michx. FAC- FAC FAC NI FACU FACU,FAC

Streptopus streptopoides (Ledeb.) Frye & Rigg NI FAC* FAC*

Strophostyles helvula (L.) Ell. FACU- FAC FAC+ FAC FACU FACU FACU-,FAC+

Strophostyles umbellata (Muhl. ex Willd.) Britt. FACU FAC- FACU FACU FACU,FAC-

Struchium sparganophorum (L.) Kuntze OBL FACW FACW,OBL

Strumpfia maritima Jacq. OBL* UPL UPL,OBL*

Stylisma aquatica (Walt.) Raf. FACW+ FACW- FACW-,FACW+

Stylisma pickeringii (Torr. ex M.A. Curtis) Gray NI FAC* UPL NI NI UPL,FAC*

Stylogyne lateriflora (Sw.) Mez OBL OBL

Styphelia tameiameiae (Cham. & Schlecht.) F. Muell. FACU* FACU*

Styrax americanus Lam. OBL FACW OBL FACW- FACW-,OBL



North Central

North Plains

Central Plains




Styrax grandifolius Ait. FACU FACU- UPL* FAC UPL*,FAC

Styrax platanifolius Engelm. ex Torr. FAC+ FAC+

Styrax portoricensis Krug & Urban OBL OBL

Suaeda calceoliformis (Hook.) Moq. FACW+ FACW FACW FACW FACW- FACW FACW FACW FACW FACW FACW-,FACW+

Suaeda californica S. Wats. FACW+ FACW+

Suaeda conferta (Small) I.M. Johnston OBL OBL

Suaeda esteroa Ferren & Whitmore FACW+ FACW+

Suaeda linearis (Ell.) Moq. OBL OBL OBL OBL

Suaeda maritima (L.) Dumort. OBL OBL FACW+ FACW+,OBL

Suaeda mexicana (Standl.) Standl. FACW- FACW-

Suaeda moquinii (Torr.) Greene FACW FACW FAC FAC FACW-* FAC FAC NI FAC,FACW

Suaeda suffrutescens var. detonsa I.M. Johnston OBL OBL OBL

Suaeda taxifolia (Standl.) Standl. FACW FACW

Subularia aquatica L. OBL OBL NI OBL OBL OBL OBL OBL

Suckleya suckleyana (Torr.) Rydb. OBL FACW FACW* FACW* FAC FACW FAC,OBL

Suksdorfia ranunculifolia (Hook.) Engl. NI FAC OBL* FAC,OBL*

Suksdorfia violacea Gray NI FAC FAC

Sullivantia hapemanii (Coult. & Fisher) Coult. NI OBL* NI OBL*

Sullivantia hapemanii var. purpusii (Brand) Soltis OBL OBL

Suriana maritima L. FAC FACU FACU,FAC

Swertia perennis L. NI NI FAC+ FACW+ FACW FACW* FACW FAC+,FACW+

Symphoricarpos albus (L.) Blake FACU- NI FACU- FACU- FACU FACU* FACU+ FACU FACU FACU* FACU-,FACU+

Symphoricarpos occidentalis Hook. NI NI NI NI NI NI FAC* NI FAC*

Symphoricarpos orbiculatus Moench UPL FAC- FACU FACU FACU FACU* UPL NI UPL,FAC-

Symphoricarpos oreophilus Gray UPL* NI UPL UPL FACU UPL UPL UPL*,FACU

Symphysia racemosa (Vahl) Stearn FACW FACW

Symphytum asperum Lepechin NI NI NI FACW FACW

Symphytum tuberosum L. NI

Symplocarpus foetidus (L.) Salisb. ex Nutt. OBL OBL OBL OBL

Symplocos tinctoria (L.) L'Hér. FAC+ FAC FAC+ FAC,FAC+

Synandra hispidula (Michx.) Baill. FAC- FACU FAC FACU,FAC

Synedrella nodiflora (L.) Gaertn. NI NI FAC* FAC*

Syngonanthus flavidulus (Michx.) Ruhl. FACW+ FACW+

Synosma suaveolens (L.) Raf. ex Britt. FAC- FACW OBL FAC-,OBL

Synthyris ranunculina Pennell OBL* OBL*

Syringodium isoetifolium (Aschers.) Dandy OBL OBL



North Central

North Plains

Central Plains




Syzygium cumini (L.) Skeels UPL* FACU UPL*,FACU

Syzygium jambos (L.) Alston NI FACW FAC FAC,FACW

Syzygium sandwicense (Gray) Niedenzu FACU FACU

Tabebuia heterophylla (DC.) Britt. NI FAC FAC

Tabebuia rigida Urban OBL OBL

Tabebuia schumanniana Urban FACW FACW

Tabernaemontana citrifolia L. FAC- FAC-

Tamarix africana Poir. NI FACW FACW* FACW FACW*,FACW

Tamarix aphylla (L.) Karst. FACW FAC FACW FACW- NI FAC,FACW

Tamarix chinensis Lour. NI FACW FACW FACW FACW* FACW FACW FACW FACW*,FACW

Tamarix gallica L. FACW FACW- NI FACW NI FACW-,FACW

Tamarix parviflora DC. NI NI UPL* FACW FACW FACW* FACW NI FAC NI UPL*,FACW

Tamarix ramosissima Ledeb. NI NI FACW FACW FACW FACW* FACW FAC FAC,FACW

Tanacetum vulgare L. NI UPL NI NI NI NI NI FACU NI UPL NI NI UPL,FACU

Taraxacum californicum Munz & Johnston FACW FACW

Taraxacum officinale G.H. Weber ex Wiggers FACU- FACU FACU FACU FACU FACU+ FACU FACU+ FACU FACU FACU FACW UPL UPL,FACW

Tauschia tenuissima (Geyer ex Hook.) Mathias & Constance FACW* FACW*

Tauschia texana Gray FACW- FACW-

Taxodium ascendens Brongn. NI OBL OBL

Taxodium distichum (L.) L.C. Rich. OBL OBL OBL OBL OBL

Taxodium mucronatum Ten. OBL OBL

Taxus brevifolia Nutt. NI FACU FACU FACU FACU

Taxus canadensis Marsh. FAC NI FACU FACU,FAC

Taxus floridana Nutt. ex Chapman FAC* FAC*

Tectaria amesiana A.A. Eat. OBL* OBL*

Tectaria coriandrifolia (Sw.) Underwood OBL* OBL*

Tectaria fimbriata (Willd.) Proctor & Lourteig OBL* NI OBL*

Tectaria heracleifolia (Willd.) Underwood FACW* NI NI FACW*

Tectaria incisa Cav. FACW* FACW FACW*,FACW

Tectaria plantaginea (Jacq.) Maxon OBL OBL

Tectaria trifoliata (L.) Cav. OBL OBL

Teliostachya alopecuroidea (Vahl) Nees FACU FACU

Tellima grandiflora (Pursh) Dougl. ex Lindl. NI NI FACU* NI FACU*

Teramnus labialis (L. f.) Spreng. NI FAC* FAC*

Terminalia carolinensis Kanehira FAC FAC

Terminalia catappa L. NI FAC- NI FAC-



North Central

North Plains

Central Plains




Ternstroemia heptasepala Krug & Urban OBL OBL

Ternstroemia luquillensis Krug & Urban OBL OBL

Ternstroemia peduncularis DC. FACW FACW

Ternstroemia stahlii Krug & Urban FACU FACU

Ternstroemia subsessilis (Britt.) Kobuski OBL OBL

Tetragastris balsamifera (Sw.) Oken FACU FACU

Tetragonia tetragonioides (Pallas) Kuntze NI NI NI FACU* NI NI FACU*

Tetraplasandra gymnocarpa (Hbd.) Sherff FAC FAC

Tetraplasandra hawaiensis Gray FACU* FACU*

Tetraplasandra kavaiensis (Mann) Sherff FAC* FAC*

Tetraplasandra oahuensis (Gray) H.A.T. Harms FACU FACU

Tetraplasandra waialealae Rock FAC FAC

Tetraplasandra waimeae Wawra FAC FAC

Tetrazygia bicolor (P. Mill.) Cogn. FAC NI FAC

Tetrazygia biflora (Cogn.) Urban FAC FAC

Tetrazygia crotonifolia (Desr.) DC. FACU FACU

Tetrazygia urbanii Cogn. FAC FAC

Teucrium canadense L. FACW- FACW- FACW- FACW FACW FACW- FACW* FACW FAC+ NI FAC+,FACW

Teucrium cubense Jacq. UPL FAC+ FACW* FACW UPL,FACW

Thalassia hemprichii (Ehrenb.) Aschers. OBL OBL

Thalassia testudina Banks & Soland. ex Koenig OBL OBL OBL OBL

Thalassodendron ciliatum (Forsk.) den Hartog OBL OBL

Thalia dealbata Fraser ex Roscoe OBL OBL OBL OBL

Thalia geniculata L. OBL OBL OBL

Thalictrum alpinum L. NI NI FACW* FACW FACW- FACU FAC FACU,FACW

Thalictrum clavatum DC. FACW FACW FACW

Thalictrum cooleyi Ahles FACW+ FACW+

Thalictrum coriaceum (Britt.) Small FACU NI FACU

Thalictrum dasycarpum Fisch. & Avé-Lall. FACW FAC+ FACW- FAC FACW FACW- FACW* FACW FACW FAC,FACW

Thalictrum debile Buckl. FAC FAC

Thalictrum dioicum L. FAC FAC FACU+ FACW FAC FACU+,FACW

Thalictrum fendleri Engelm. ex Gray NI NI FAC- FACU- UPL FAC FACU UPL,FAC

Thalictrum macrostylum Small & Heller FACW FAC+ FAC+,FACW

Thalictrum mirabile Small FAC* OBL FAC*,OBL

Thalictrum occidentale Gray NI FACU* FACU* FAC+ NI FACU*,FAC+

Thalictrum pubescens Pursh FACW+ FACW+ FAC FAC,FACW+



North Central

North Plains

Central Plains




Thalictrum revolutum DC. UPL FAC+ FAC NI NI NI NI UPL,FAC+

Thalictrum sparsiflorum Turcz. ex Fisch. & C.A. Mey. NI NI FAC+ FAC FAC FACU FACU,FAC+

Thalictrum thalictroides (L.) Eames & Boivin FACU- UPL NI NI NI UPL,FACU-

Thalictrum venulosum Trel. FACW FAC* NI NI NI NI NI FAC*,FACW

Thaspium barbinode (Michx.) Nutt. UPL UPL UPL FAC- FAC* UPL,FAC*

Thelypodium brachycarpum Torr. NI FACU FACU

Thelypodium crispum Greene ex Payson FACU NI FACU

Thelypodium integrifolium (Nutt.) Endl. ex Walp. FACW FAC FACU- FAC FACW FACW FACU-,FACW

Thelypodium sagittatum ssp. ovalifolium (Rydb.) Al-Shehbaz FACW* FACW*

Thelypodium stenopetalum S. Wats. FAC* FAC*

Thelypteris angustifolia (Willd.) Proctor OBL OBL

Thelypteris balbisii (Spreng.) Ching FAC+ FAC+

Thelypteris cyatheoides (Kaulfuss) Fosberg FACU FACU

Thelypteris decussata (L.) Proctor FACW FACW

Thelypteris deltoidea (Sw.) Proctor FAC FAC

Thelypteris dentata (Forsk.) E. St. John NI FACW FAC FAC FACU FACU,FACW

Thelypteris germaniana (Fée) Proctor FACW FACW

Thelypteris hispidula (Dcne.) C.F. Reed FACU- FAC* FAC FACU-,FAC

Thelypteris interrupta (Willd.) K. Iwats. FAC+ OBL OBL FAC+,OBL

Thelypteris kunthii (Desv.) Morton FACW FAC FAC NI FAC,FACW

Thelypteris linkiana (K. Presl) R. Tryon FAC FAC

Thelypteris namophila Proctor FACW FACW

Thelypteris nevadensis (Baker) Clute ex Morton NI FAC* FAC*

Thelypteris noveboracensis (L.) Nieuwl. FAC FAC+ FAC+ OBL FAC,OBL

Thelypteris opposita (Vahl) Ching FACW FACW

Thelypteris ovata R. St. John UPL FACW UPL,FACW

Thelypteris palustris var. pubescens (Lawson) Fern. FACW+ OBL FACW+ FACW+,OBL

Thelypteris patens (Sw.) Small ex R. St. John NI FACW FACW

Thelypteris piedrensis (C. Christens.) Morton FACU FACU

Thelypteris poiteana (Bory) Proctor FAC FAC

Thelypteris puberula (Baker) Morton NI OBL OBL

Thelypteris resinifera (Desv.) Proctor FACW FACW FACW

Thelypteris reticulata (L.) Proctor FACW FACW+ FACW,FACW+

Thelypteris rheophyta Proctor OBL OBL

Thelypteris rudis (Kunze) Proctor FACW FACW

Thelypteris sancta (L.) Ching FAC+ FAC+



North Central

North Plains

Central Plains




Thelypteris sclerophylla (Poepp. ex Spreng.) Morton NI FACU FACU

Thelypteris serrata (Cav.) Alston FACW+ OBL FACW+,OBL

Thelypteris simulata (Davenport) Nieuwl. FACW OBL FACW FACW,OBL

Thelypteris warburgii (Kuhn & Christ.) Stone FAC* FAC*

Thermopsis macrophylla var. venosa (Eastw.) Isely NI UPL UPL

Thermopsis rhombifolia (Nutt. ex Pursh) Nutt. ex Richards. NI UPL FACU FACU FAC* FACU UPL,FAC*

Thespesia populnea (L.) Soland. ex Correa FAC FAC FAC+ FAC,FAC+

Thlaspi arvense L. UPL UPL UPL FACU FACU UPL UPL UPL NI NI UPL* UPL*,FACU

Thrinax morrisii H. Wendl. FAC NI FAC

Thrinax radiata Lodd. ex J.A. & J.H. Schultes FAC* FAC*

Thuja occidentalis L. FACW UPL* FACW UPL*,FACW

St. Lawrence-Champlain Plain FAC+

Thuja plicata Donn ex D. Don FAC FAC+ FAC FAC,FAC+

Thunbergia alata Bojer ex Sims UPL UPL FACU NI UPL,FACU

Tiarella cordifolia L. FAC- FAC- FAC- FAC-

Tiarella trifoliata L. FAC- FAC FAC FAC-,FAC

Tiarella trifoliata var. unifoliata (Hook.) Kurtz NI NI NI FACU* FACU*

Tibouchina herbacea (DC.) Cogn. FAC FAC

Tilia americana L. FACU FACU FACU FACU FACU FACU NI FACU,FAC*

Coastal Plain FAC*

Timonius ledermannii Val. FACU FACU

Tipularia discolor (Pursh) Nutt. FACU FACU FACU- FAC FACU-,FAC

Tiquilia nuttallii (Hook.) A. Richards. NI NI NI NI UPL UPL

Tithonia diversifolia (Hemsl.) Gray FACU FACU UPL UPL,FACU

Tithonia thurberi Gray FACW FACW

Tofieldia coccinea Richards. FAC FAC

Tofieldia glabra Nutt. NI FACW FACW

Tofieldia glutinosa (Michx.) Pers. OBL OBL OBL NI NI OBL OBL FACW* FACW*,OBL

Tofieldia pusilla (Michx.) Pers. FACW+ NI NI FAC FAC,FACW+

Tofieldia racemosa (Walt.) B.S.P. OBL OBL OBL OBL

Tolmiea menziesii (Pursh) Torr. & Gray FAC OBL FACW FAC,OBL

Torenia asiatica L. FAC FAC

Torralbasia cuneifolia (C. Wright) Krug & Urban OBL OBL

Torreyochloa californica (Beetle) Church OBL OBL

Torreyochloa erecta (A.S. Hitchc.) Church OBL OBL OBL OBL



North Central

North Plains

Central Plains




Torreyochloa pallida var. fernaldii (A.S. Hitchc.) Dore ex Koyama & Ka OBL NI OBL OBL OBL

Torreyochloa pallida var. pallida (Torr.) Church OBL OBL OBL OBL

Torreyochloa pallida var. pauciflora (J. Presl) J.I. Davis OBL NI OBL OBL OBL OBL FACW FACW,OBL

Touchardia latifolia Gaud. FAC* FAC*

Tournefortia filiflora Griseb. FACU FACU

Tournefortia maculata Jacq. FAC FAC

Toxicodendron pubescens P. Mill. FACU FACU FACU FACU FACU FACU

Toxicodendron radicans (L.) Kuntze FAC FAC FAC+ FACU FACU FAC FACW FACU,FACW

Toxicodendron rydbergii (Small ex Rydb.) Greene FAC- NI FAC FACU FAC FAC FACW FACU FACU* FACU*,FACW

Toxicodendron vernix (L.) Kuntze OBL OBL OBL OBL OBL

Trachelospermum difforme (Walt.) Gray FACW FACW FACW FACW FACW

Tradescantia bracteata Small ex Britt. UPL NI FACU- FAC FAC FAC* NI UPL,FAC

Tradescantia edwardsiana Tharp FAC- FAC-

Tradescantia fluminensis Vell. FAC+ FAC* FAC*,FAC+

Tradescantia occidentalis (Britt.) Smyth UPL UPL UPL UPL UPL FACU* FACU* FACU FACW UPL,FACW

Tradescantia ohiensis Raf. FAC FAC- FACU+ FACU FACW FACU,FACW

Tradescantia virginiana L. FACU FAC+ UPL NI UPL,FAC+

Tradescantia wrightii Rose & Bush FACW FACW* FACW*,FACW

Tradescantia zebrina hort. ex Bosse NI UPL FACU NI UPL,FACU

Trapa natans L. OBL OBL

Trautvetteria caroliniensis (Walt.) Vail FACW- FACW+ FAC- NI FACW* FAC FAC FACW* FAC-,FACW+

Trema micranthum (L.) Blume NI FACU FACU

Trematolobelia grandifolia (Rock) O. Deg. FAC FAC

Trematolobelia kauaiensis (Rock) Skottsberg FAC* FAC*

Trematolobelia macrostachys (Hook. & Arn.) Zahlbr. FACU* FACU*

Trematolobelia singularis St. John FACW FACW

Trepocarpus aethusae Nutt. ex DC. NI FACW NI FACW FACW

Triadenum fraseri (Spach) Gleason OBL NI OBL OBL OBL

Triadenum tubulosum (Walt.) Gleason OBL OBL OBL OBL OBL

Triadenum virginicum (L.) Raf. OBL OBL OBL OBL OBL

Triadenum walteri (J.G. Gmel.) Gleason OBL OBL OBL OBL OBL

Trianthema portulacastrum L. UPL* FACW FACW FACW- FACU* FAC* FACW FAC NI UPL*,FACW

Trichilia pallida Sw. FACU FACU

Trichocoronis rivularis Gray OBL OBL

Trichocoronis wrightii (Torr. & Gray) Gray FACW* FACW FACW*,FACW

Trichomanes alatum Sw. NI*



North Central

North Plains

Central Plains




Trichomanes boschianum Sturm FACW OBL FACW FACW,OBL

Trichomanes crispum L. NI*

Trichomanes holopterum Kunze OBL NI* OBL

Trichomanes hymenophylloides Bosch OBL OBL

Trichomanes krausii Hook. & Grev. UPL NI* UPL

Trichomanes lineolatum (Bosch) Hook. UPL OBL UPL,OBL

Trichomanes membranaceum L. NI OBL OBL

Trichomanes petersii Gray FAC FAC

Trichomanes polypodioides L. FACW FACW

Trichomanes punctatum Poir. UPL NI* UPL

Trichomanes radicans Sw. NI OBL OBL

Trichomanes rigidum Sw. OBL OBL

Trichomanes robustum Fourn. FACW FACW

Trichomanes scandens L. NI*

Trichospermum ledermannii Burret FAC FAC

Trichospermum richii (Gray) Seem. FACU FACU

Trichostema austromontanum F.H. Lewis OBL* OBL* OBL*

Trichostema dichotomum L. NI UPL* UPL NI UPL*,UPL

Trichostema micranthum Gray FAC* FACW* FAC*,FACW*

Trichostigma octandrum (L.) H. Walt. NI FACU FACU

Tridens albescens (Vasey) Woot. & Standl. FAC* FAC FAC- FACU* FACU*,FAC

Tridens ambiguus (Ell.) J.A. Schultes FACW+ FAC- FAC-,FACW+

Tridens flavus (L.) A.S. Hitchc. FACU* FACU UPL UPL UPL UPL UPL,FACU

Tridens X oklahomensis (Featherly) Featherly (pro sp.) NI FAC* FACW* FAC*,FACW*

Tridens strictus (Nutt.) Nash NI FACW FACU FACW FAC- FACU,FACW

Trientalis borealis Raf. FAC FAC FAC+ FACW* FAC* FAC*,FACW*

Trientalis borealis ssp. latifolia (Hook.) Hultén FAC- FAC FAC-,FAC

Trientalis europaea L. NI FAC* FAC FAC*,FAC

Trientalis europaea ssp. arctica (Fisch. ex Hook.) Hultén OBL OBL FAC FAC,OBL

Trifolium albopurpureum Torr. & Gray NI NI FACU* FACU*

Trifolium amabile Kunth OBL* OBL*

Trifolium amoenum Greene FACW* FACW*

Trifolium barbigerum Torr. NI FACW FACW

Trifolium beckwithii Brewer ex S. Wats. FAC+ FAC FAC FAC* FAC*,FAC+

Trifolium bolanderi Gray OBL OBL

Trifolium cyathiferum Lindl. FACW FAC* FACW NI FAC*,FACW



North Central

North Plains

Central Plains




Trifolium dasyphyllum Torr. & Gray NI NI FACU* FACU- UPL UPL,FACU*

Trifolium depauperatum Desv. UPL* NI FAC- UPL*,FAC-

Trifolium douglasii House FACW FACW

Trifolium dubium Sibthorp UPL FACU- FACU UPL FACU- FACU FACU UPL FACU* UPL NI UPL,FACU

Trifolium eriocephalum Nutt. NI FAC FAC- NI* FAC-,FAC

Trifolium fragiferum L. FACU NI FACU FAC FAC NI FACW- FACU NI* FACU,FACW-

Trifolium fucatum Lindl. UPL* FACU+ FAC UPL*,FAC

Trifolium haydenii Porter NI UPL UPL

Trifolium howellii S. Wats. FACW- FACW FACW-,FACW

Trifolium hybridum L. FACU- FACU FAC- FACU FACU FAC FAC FACU FAC FACU FAC NI FACU-,FAC

Trifolium kingii S. Wats. NI FACW FAC- FAC-,FACW

Trifolium longipes Nutt. NI NI FACW* FACU FAC- FACW FACU,FACW

Trifolium macrocephalum (Pursh) Poir. NI FACU FACU- FACU* FACU-,FACU

Trifolium microcephalum Pursh NI FACW* FAC FAC FACU* UPL* UPL*,FACW*

Trifolium monanthum Gray FAC FACW FAC,FACW

Trifolium mucronatum Willd. ex Spreng. NI FACW* NI NI FACW*

Trifolium nanum Torr. NI NI FACW* UPL UPL UPL,FACW*

Trifolium neurophyllum Greene FACW* FACW*

Trifolium obtusiflorum Hook. f. FAC FAC* FAC*,FAC

Trifolium parryi Gray NI NI FAC FACU FAC FACU,FAC

Trifolium pinetorum Greene FACW FACW

Trifolium polyodon Greene FACW FACW

Trifolium pratense L. FACU- FACU- FACU+ FACU FACU FACU+ FACU FACU FACU FACU+ FAC NI UPL UPL,FAC

Trifolium productum Greene NI NI FAC* FAC*

Trifolium repens L. FACU- FACU FACU+ FACU FACU FACU+ FACU FACU FAC- FAC FACU* NI FACU-,FAC

Trifolium resupinatum L. UPL FACU UPL FACU+ FACU FACU UPL NI NI UPL,FACU+

Trifolium variegatum Nutt. FACW FACW- FAC* FACW- FAC FAC*,FACW

Trifolium willdenowii Spreng. FACW* NI NI FACW*

Trifolium wormskioldii Lehm. NI NI FACW* OBL FACW+ FACW FAC FAC,OBL

Triglochin concinnum Burtt-Davy NI OBL OBL OBL

Triglochin maritimum L. OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL

Triglochin palustre L. OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL

Triglochin striatum Ruiz & Pavón OBL OBL OBL OBL OBL

Trillium albidum J.D. Freeman NI NI

Trillium cernuum L. FACW FAC FAC FAC,FACW

Trillium erectum L. FACU- FAC UPL UPL,FAC



North Central

North Plains

Central Plains




Trillium flexipes Raf. FAC FAC- FAC- FACU FACU,FAC

Trillium lancifolium Raf. NI UPL UPL

Trillium ovatum Pursh NI FAC FACU* FACU* FACU*,FAC

Trillium pusillum Michx. FACW FACW UPL NI UPL,FACW

Trillium recurvatum Beck UPL FACU FACU- NI FACU UPL,FACU

Trillium sessile L. UPL* UPL FACU-* FACU* NI UPL*,FACU*

Trillium texanum Buckl. FACU FAC FACU,FAC

Trillium undulatum Willd. FACU FACU FACU- FACU-,FACU

Trimorpha acris var. asteroides (Andrz. ex Bess.) Nesom FAC FAC NI FACU FACU FAC FACU,FAC

Trimorpha acris var. debilis (Gray) Nesom NI NI NI NI FAC NI FAC

Trimorpha lonchophylla (Hook.) Nesom FACW- FACW NI FACW* FACW FACW FAC FACW FAC,FACW

Triodanis perfoliata (L.) Nieuwl. FAC FACU+ FAC FAC FAC FAC- FAC FACU UPL FAC NI UPL,FAC

Triosteum angustifolium L. FAC* UPL NI NI NI UPL,FAC*

Triphasia trifolia (Burm. f.) P. Wilson NI NI NI FAC* FAC*

Triphora surinamensis (Lindl.) Britt. OBL OBL

Triphora trianthophora (Sw.) Rydb. UPL FACW- FACU- FACU* FACU OBL UPL,OBL

Tripsacum dactyloides (L.) L. FACW FAC+ FAC+ FAC FAC+ FAC,FACW

Trisetum cernuum Trin. NI FACU FACU FAC+ FACU* FACU*,FAC+

Trisetum inaequale Whitney NI

Trisetum melicoides (Michx.) Vasey ex Scribn. FAC* FACW* FAC*,FACW*

Trisetum X orthochaetum A.S. Hitchc. (pro sp.) NI

Trisetum sibiricum Rupr. FAC* FAC*

Trisetum spicatum (L.) Richter FACU UPL FAC- FACU NI FACW- FACU- UPL FAC+ FAC UPL,FACW-

Trisetum wolfii Vasey NI NI FACW FACW- FACU FACW* FACU,FACW

Triteleia hyacinthina (Lindl.) Greene FACW FACU FACW* FACU,FACW

Triteleia ixioides ssp. cookii (Hoover) Lenz FAC* FAC*

Triteleia peduncularis Lindl. FACW FACW

Triumfetta semitriloba Jacq. FACU FAC UPL UPL,FAC

Trollius laxus Salisb. OBL NI NI OBL OBL OBL

Tropaeolum majus L. NI NI UPL NI NI UPL

Tsuga canadensis (L.) Carr. FACU FACU FACU FACU,FACW*

Great Lakes Plain FAC*

Seaboard Lowlands FACW*

Tsuga heterophylla (Raf.) Sarg. NI FACU+ FACU FAC FACU,FAC

Tsuga mertensiana (Bong.) Carr. FACU FACU FACU+ FAC FACU,FAC



North Central

North Plains

Central Plains




Tuctoria greenei (Vasey) J. Reeder OBL OBL

Tuctoria mucronata (Crampton) J. Reeder OBL OBL

Turnera ulmifolia L. UPL FAC NI UPL,FAC

Turpinia occidentalis (Sw.) G. Don FAC FAC

Tussilago farfara L. FACU NI FACU FACU

Typha angustifolia L. OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL NI OBL

Typha domingensis Pers. OBL OBL NI OBL OBL OBL OBL OBL OBL OBL OBL OBL

Typha X glauca Godr. (pro sp.) OBL OBL OBL NI OBL NI OBL OBL

Typha latifolia L. OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL

Ulmus alata Michx. FACU FACU+ FACU FACU FACU FACU,FACU+

Ulmus americana L. FACW- FACW FACW- FAC FAC FAC NI FAC,FACW

Ulmus crassifolia Nutt. FAC NI FAC FAC

Ulmus pumila L. NI NI NI UPL UPL NI NI NI NI UPL UPL

Ulmus rubra Muhl. FAC- FAC FAC FAC FAC FAC FAC-,FAC

Ulmus serotina Sarg. FAC+ UPL NI FAC UPL,FAC+

Ulmus thomasii Sarg. FACU+ FAC FAC+ FACU- UPL UPL,FAC+

Umbellularia californica (Hook. & Arn.) Nutt. FAC- FAC FAC-,FAC

Uncinia uncinata (L. f.) Kükenth. FAC FAC

Uniola paniculata L. FACU- FACU FACU FACU-,FACU

Urena lobata L. FAC FAC FACU FACU,FAC

Urera baccifera (L.) Gaud. FACW FACW

Urera caracasana (Jacq.) Gaud. ex Griseb. FACW FACW

Urera chlorocarpa Urban FACW FACW

Urera glabra (Hook. & Arn.) Weddell FAC* FAC*

Urtica chamaedryoides Pursh FACU FAC FACU* FACU FACU FACU*,FAC

Urtica dioica L. FACU FAC+ FACW- FACW FACW FAC FACW* FAC FAC+ FACW FACU FACU,FACW

Utricularia amethystina Salzm. ex St.-Hil. & Girard OBL OBL

Utricularia caerulea L. OBL* OBL*

Utricularia cornuta Michx. OBL OBL OBL OBL NI OBL

Utricularia exoleta R. Br. NI

Utricularia fibrosa Walt. OBL OBL OBL OBL OBL

Utricularia floridana Nash OBL OBL

Utricularia foliosa L. OBL NI OBL

Utricularia geminiscapa Benj. OBL NI OBL OBL

Utricularia gibba L. OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL

Utricularia inflata Walt. OBL OBL NI OBL NI OBL



North Central

North Plains

Central Plains




Utricularia intermedia Hayne OBL OBL OBL OBL OBL OBL OBL OBL OBL

Utricularia juncea Vahl OBL OBL OBL OBL OBL

Utricularia macrorhiza Le Conte OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL

Utricularia minor L. OBL NI OBL OBL OBL OBL OBL OBL OBL OBL

Utricularia ochroleuca R.W. Hartman NI NI OBL NI OBL OBL

Utricularia olivacea C. Wright ex Griseb. OBL OBL OBL

Utricularia purpurea Walt. OBL OBL OBL OBL OBL

Utricularia pusilla Vahl OBL OBL

Utricularia racemosa Wallich OBL OBL

Utricularia radiata Small OBL OBL OBL OBL OBL

Utricularia resupinata B.D. Greene ex Bigelow OBL OBL OBL OBL

Utricularia simulans Pilger OBL OBL

Utricularia subulata L. OBL OBL NI OBL OBL OBL

Utricularia uliginosa Vahl OBL OBL

Uvularia floridana Chapman FACW FACW

Uvularia perfoliata L. FACU FACU NI NI FACU

Uvularia puberula Michx. FACU FAC- FACU,FAC-

Uvularia sessilifolia L. FACU- FAC+ FAC- FACU FACU* FACU-,FAC+

Vaccaria hispanica (P. Mill.) Rauschert NI NI NI NI NI NI NI NI NI UPL NI UPL

Vaccinium angustifolium Ait. FACU- NI FACU FACU-,FACU

Vaccinium arboreum Marsh. FACU FACU FACU FACU FACU FACU

Vaccinium caesariense Mackenzie OBL NI OBL

Vaccinium calycinum Sm. FAC FAC

Vaccinium cespitosum Michx. FACW FACU* NI NI FAC* FAC FAC FACW FACW FACU*,FACW

Vaccinium corymbosum L. FACW- FACW FACW FACW FACW-,FACW

Vaccinium crassifolium Andr. FAC FAC+ FAC,FAC+

Vaccinium darrowii Camp FACU FACU

Vaccinium dentatum Sm. FACU FACU

Vaccinium elliottii Chapman FACW FAC+ FACW- FAC+,FACW

Vaccinium erythrocarpum Michx. FAC FAC FAC

Vaccinium formosum Andr. OBL FAC+ FAC+,OBL

Vaccinium fuscatum Ait. NI FAC+ NI NI FAC+

Vaccinium macrocarpon Ait. OBL OBL OBL OBL OBL

Vaccinium X marianum S. Wats. (pro sp.) FAC OBL FAC,OBL

Vaccinium membranaceum Dougl. ex Torr. UPL* FACU NI FACU FACU FACU+ UPL*,FACU+

Vaccinium myrsinites Lam. FACU FACU



North Central

North Plains

Central Plains




Vaccinium myrtilloides Michx. FAC FACW- NI FACU FACU,FACW-

Vaccinium myrtillus L. NI NI UPL UPL NI UPL

Vaccinium ovalifolium Sm. FACU* NI NI FAC FACU*,FAC

Vaccinium oxycoccos L. OBL OBL OBL OBL OBL

Vaccinium parvifolium Sm. NI NI FAC* FAC*

Vaccinium reticulatum Sm. FAC* FAC*

Vaccinium scoparium Leib. ex Coville FACU NI FAC UPL FACU- FACU UPL,FAC

Vaccinium simulatum Small FACU FAC FACU,FAC

Vaccinium stamineum L. FACU FACU FACU- FACU FACU FACU-,FACU

Vaccinium tenellum Ait. UPL* FACU- UPL*,FACU-

Vaccinium uliginosum L. FACU+ FAC* NI FACW FACW FACW FAC FACU+,FACW

Vaccinium virgatum Ait. FACW FACU FACW FACW- FACU,FACW

Vaccinium vitis-idaea L. FAC FAC FAC FAC

Vahlodea atropurpurea (Wahlenb.) Fries ex Hartman FACW NI NI FAC+ FACW FACW* FACW* FAC+,FACW

Valeriana acutiloba Rydb. FAC FAC FAC* FACU NI NI FACU,FAC

Valeriana capitata Pallas ex Link FAC FAC

Valeriana dioica L. FACW- NI FACW NI FACW-,FACW

Valeriana edulis Nutt. ex Torr. & Gray OBL FACW+ FAC NI FAC FACW- FAC FAC,OBL

Valeriana occidentalis Heller NI NI FAC FAC- FAC FACW FAC-,FACW

Valeriana pauciflora Michx. FACW FAC FACW- FAC,FACW

Valeriana scandens L. FAC FAC FAC

Valeriana scouleri Rydb. NI FAC FAC FAC

Valeriana sitchensis Bong. OBL NI FAC FAC FAC FAC,OBL

Valeriana texana Steyermark OBL* OBL* OBL*

Valerianella amarella (Lindheimer ex Engelm.) Krok FAC FACU* FACU*,FAC

Valerianella florifera Shinners FAC* FAC*

Valerianella radiata (L.) Dufr. FAC FAC- FAC+ FAC FACW* FAC-,FACW*

Valerianella stenocarpa (Engelm. ex Gray) Krok FACW* FACW*

Valerianella texana Dyal FAC+ FAC+

Valerianella umbilicata (Sullivant) Wood FAC FAC FACW* FAC,FACW*

Valerianella woodsiana (Torr. & Gray) Walp. FACU* FACW- NI NI FACW FACU*,FACW

Vallisneria americana Michx. OBL OBL OBL OBL OBL NI OBL NI OBL OBL

Vanilla barbellata Reichenb. f. NI UPL UPL

Veratrum californicum Dur. NI NI OBL FACW FACW+ OBL FACW,OBL

Veratrum californicum var. caudatum (Heller) C.L. Hitchc. OBL OBL

Veratrum fimbriatum Gray OBL OBL



North Central

North Plains

Central Plains




Veratrum viride Ait. FACW+ FAC+ FACW+ NI FACW FACW FAC* FAC*,FACW+

Verbascum blattaria L. UPL FAC FACU- NI UPL UPL UPL UPL UPL FACU* NI UPL,FAC

Verbascum thapsus L. NI NI NI NI NI NI NI NI NI NI NI NI

Verbascum virgatum Stokes NI NI NI NI NI NI NI NI NI

Verbena bonariensis L. NI FAC+ FACW+ NI NI FACW FAC NI FAC,FACW+

Verbena bracteata Lag. & Rodr. UPL* FACU- FACU FACU FACU FAC FAC FACU FAC* FACW UPL*,FACW

Verbena brasiliensis Vell. UPL* FAC- NI FAC* NI FACW* NI UPL*,FACW*

Verbena californica Moldenke FACW FACW

Verbena carolina L. NI NI NI

Verbena X engelmannii Moldenke NI FAC FACU* FACU NI FACU*,FAC

Verbena hastata L. FACW+ FAC FACW+ FACW FACW FACW FACW FACW FAC+ FACW FAC,FACW+

Verbena lasiostachys Link NI FAC- FAC- FAC-

Verbena macdougalii Heller NI FAC- FACU- UPL NI UPL,FAC-

Verbena officinalis L. FACU- FACU- NI NI NI* FACU-

Verbena riparia Raf. ex Small & Heller FACW FAC FAC,FACW

Verbena robusta Greene FACW FACW

Verbena runyonii Moldenke FACW- NI FACW-

Verbena X rydbergii Moldenke NI NI FACW* FACW NI FACW*,FACW

Verbena scabra Vahl FACW FACW+ OBL OBL OBL FAC FAC,OBL

Verbena urticifolia L. FACU FAC+ FAC+ FACU UPL FAC UPL,FAC+

Verbesina alata L. FAC FAC

Verbesina alternifolia (L.) Britt. ex Kearney FAC FAC FACW FAC FAC FAC,FACW

Verbesina chapmanii J.R. Coleman FACW+ FACW+

Verbesina encelioides (Cav.) Benth. & Hook. f. ex Gray FACU- FAC FAC FAC FAC FAC FAC FACU NI FAC FACW FACU- FACU-,FACW

Verbesina heterophylla (Chapman) Gray FACW FACW

Verbesina occidentalis (L.) Walt. UPL FACU NI FACU* UPL,FACU

Verbesina virginica L. UPL FACU FACU-* FACU- FACU UPL,FACU

Verbesina walteri Shinners FAC- FAC-

Vernonia angustifolia Michx. FACU- FACU-

Vernonia arkansana DC. NI FAC FAC* FACW FAC FAC*,FACW

Vernonia baldwinii Torr. NI UPL UPL FACW- FACW- FACU* NI NI UPL,FACW-

Vernonia blodgettii Small FACW- FACW-

Vernonia borinquensis Urban FAC FAC

Vernonia fasciculata Michx. FAC+ FACW FACW FACW FAC FAC NI FAC,FACW

Vernonia gigantea (Walt.) Trel. FAC FAC+ FAC FACW FAC FAC,FACW

Vernonia lettermannii Engelm. ex Gray FACW OBL FACW,OBL



North Central

North Plains

Central Plains




Vernonia marginata (Torr.) Raf. FAC FAC FACU* NI FACU*,FAC

Vernonia missurica Raf. FACU+ FAC+ FAC+ FACW FACW FACW* FACU+,FACW

Vernonia noveboracensis (L.) Michx. FACW+ FAC+ NI FAC+,FACW+

Vernonia sericea L.C. Rich. FAC FAC

Veronica americana Schwein. ex Benth. OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL

Veronica anagallis-aquatica L. OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL

Veronica arvensis L. NI UPL FACU* FACU FACU FACU* FACU* FACU FACU* FACU* FACU* FAC UPL,FAC

Veronica beccabunga L. OBL OBL OBL OBL OBL

Veronica chamaedrys L. UPL NI NI NI NI NI UPL,FACU*

Great Lakes Plain FACU*

Veronica cusickii Gray NI FAC* FAC FAC*,FAC

Veronica officinalis L. FACU- FACU UPL UPL NI UPL UPL,FACU

Veronica peregrina L. FACU- FAC+ FACW+ FACW OBL OBL OBL FACW+ OBL OBL FACW OBL NI FACU-,OBL

Veronica plebia R. Br. FACW FACW

Veronica scutellata L. OBL OBL OBL OBL NI OBL OBL OBL OBL OBL

Veronica serpyllifolia L. FAC+ FAC+ FACW OBL OBL FACW- FACW FAC NI* OBL FAC FAC,OBL

Veronica wormskjoldii Roemer & J.A. Schultes FAC NI NI FAC FAC+ FACW- FACW* FAC FAC,FACW*

Veronicastrum virginicum (L.) Farw. FACU FACW FAC FAC FAC FAC FACU,FACW

Vetiveria zizanioides (L.) Nash ex Small NI FAC FAC

Viburnum acerifolium L. UPL* FACU UPL* UPL UPL*,FACU

Viburnum dentatum L. FAC FAC FAC FAC FAC

Viburnum dentatum var. dentatum L. NI OBL NI NI OBL

Viburnum dentatum var. lucidum Ait. FACW- FACW FACW- FAC,FACW

Great Lakes Plain FAC

Viburnum edule (Michx.) Raf. FACW FACW FACW NI FACW FACW FACU FACU,FACW

Viburnum lantanoides Michx. FACU FAC FACU,FAC

Viburnum lentago L. FAC FAC FAC+ FACU FAC NI NI FACU,FACW-

Great Lakes Plain FACW-

Viburnum nudum L. OBL FACW+ NI FACW+ FACW+,OBL

Viburnum nudum var. cassinoides (L.) Torr. & Gray FACW FACW FACW NI FACW

Viburnum obovatum Walt. FACW+ FACW+

Viburnum opulus var. americanum Ait. FACW FACW FAC FACW NI FACW- FAC,FACW

Viburnum plicatum Thunb. NI NI

Viburnum prunifolium L. FACU FACU FACU FACU FACU+ FACU,FAC-

Lower Coastal Plain FAC-



North Central

North Plains

Central Plains




Viburnum rufidulum Raf. UPL FACU FACU-* UPL FACU- UPL,FACU

Vicia acutifolia Ell. FACW+ FACW+

Vicia americana Muhl. ex Willd. NI FACU* FAC FAC FACU* FACU* UPL FAC* FACU* FACU* UPL,FAC

Vicia caroliniana Walt. FACU- FACU UPL* UPL UPL*,FACU

Vicia floridana S. Wats. FACW FACW

Vicia ludoviciana Nutt. FACU UPL* FACU UPL UPL UPL NI NI UPL*,FACU

Vicia minutiflora F.G. Dietr. FAC UPL* UPL UPL*,FAC

Vicia nigricans ssp. gigantea (Hook.) Lassetter & Gunn. NI FACU NI FACU

Vicia ocalensis Godfrey & Kral OBL OBL

Vicia sativa L. FACU- FACU FACU- FACU FACU FAC FACW FACU UPL FACU UPL UPL UPL,FACW

Vigna adenantha (G.F.W. Mey.) Marechal, Mascherpa & Stanier NI OBL NI OBL

Vigna longifolia (Benth.) Verdc. OBL* OBL*

Vigna luteola (Jacq.) Benth. NI FACW FACW- FAC+ FAC+,FACW

Vigna marina (Burm. f.) Merr. NI FACU FACU

Viola adunca Sm. FAC FAC- FACU NI FAC FAC FAC FAC FAC FACU,FAC

Viola adunca var. adunca Sm. NI NI NI NI FACW FACW- NI NI FACW-,FACW

Viola affinis Le Conte FACW FACW FACW NI FAC NI FAC,FACW

Viola appalachiensis Henry FACU NI FACU

Viola X bernardii Greene (pro sp.) NI FACU-* NI NI FACU-*

Viola bicolor Pursh FACU FAC FACU NI FAC- FAC FAC UPL FAC UPL,FAC

Viola biflora L. NI NI FACW FACW FACW

Viola blanda Willd. FACW FACW- FACW- NI FACW-,FACW

Viola blanda var. palustriformis Gray FACW FACU FACW FACW FACU,FACW

Viola brittoniana Pollard FAC FAC FAC

Viola canadensis L. NI NI NI NI NI NI FACU* NI NI FACU*

Viola chamissoniana Gingins FACU FACU

Viola conspersa Reichenb. FACW FACW- FACW- FACW FACW-,FACW

Viola cucullata Ait. FACW+ OBL OBL FACW FACW,OBL

Viola esculenta Ell. FACW FACW- FACW FACW-,FACW

Viola glabella Nutt. NI FAC FACW FACW FAC,FACW

Viola hallii Gray FAC FAC FAC

Viola hastata Michx. UPL FACU UPL,FACU

Viola helenae Forbes & Lydgate FACW FACW

Viola kauaensis Gray OBL OBL

Viola labradorica Schrank FAC FAC* NI NI NI NI NI FAC*,FAC

Viola lanceolata L. OBL OBL OBL NI OBL OBL OBL OBL



North Central

North Plains

Central Plains




Viola langloisii Greene FACW- FACW+ FACW-,FACW+

Viola langsdorfii Fisch. ex Gingins FACW OBL FACW FACW,OBL

Viola macloskeyi Lloyd NI NI NI NI NI FACW+ OBL OBL NI FACW+,OBL

Viola macloskeyi ssp. pallens (Banks ex DC.) M.S. Baker OBL OBL OBL NI NI FACW* FACW+ OBL NI* UPL UPL,OBL

Viola maviensis Mann FACW FACW

Viola missouriensis Greene FACU* FAC+ FACW FACW- FAC FACW FACW+ FACU*,FACW+

Viola nephrophylla Greene FACW FACW FACW+ FACW FACW FACW FACW FACW FACW FACW FACW,FACW+

Viola novae-angliae House OBL OBL OBL

Viola oahuensis Forbes FAC FAC

Viola palmata L. NI NI NI NI NI

Viola palustris L. FACW+ FACW NI NI OBL OBL FACW NI FACW,OBL

Viola pedata L. UPL FACU UPL UPL UPL NI UPL,FACU

Viola pedatifida G. Don FACU- FACU FACU- FACU FACU FACU FACU* UPL UPL,FACU

Viola pratincola Greene FACU FAC FAC FAC- FAC NI FACU,FAC

Viola primulifolia L. FAC+ FACW FACW+ FAC FAC,FACW+

Viola pubescens Ait. FACU- FACU FACU- FACU FAC- FACU FACU-,FAC-

Viola pubescens var. pubescens Ait. FACU FACW FACW- FACU FAC FACW- FACU,FACW

Viola renifolia Gray FACW FACW* FACW FACW NI FACW FACW FAC FAC,FACW

Viola rostrata Pursh FACU FACU FACU FACU

Viola rotundifolia Michx. FAC+ FAC FAC,FAC+

Viola sagittata Ait. FACW FACW- FAC+ FAC FAC- FAC-,FACW

Viola septemloba Le Conte FACW FAC+ FAC- FAC-,FACW

Viola septentrionalis Greene FACU FACU FACU NI NI FACU

Viola sororia Willd. FAC FAC FAC FAC FAC FAC FAC* NI FAC*,FAC

Viola striata Ait. FACW FACW- FACW NI FACW-,FACW

Viola viarum Pollard NI FACU UPL FACU FACU* NI UPL,FACU

Viola villosa Walt. FACU- FACU- FACU FACU-,FACU

Vitex divaricata Sw. FACU FACU

Vitis aestivalis Michx. FACU FAC- FACU UPL FAC UPL,FAC

Vitis arizonica Engelm. NI FACU+ FAC FACU- FACU-,FAC

Vitis californica Benth. FAC* FACU FACW FACU,FACW

Vitis cinerea (Engelm.) Millard FACW FAC+ FACW- FAC FACW- NI FAC,FACW

Vitis girdiana Munson FAC* FAC*

Vitis labrusca L. FACU FAC+ FACU NI FACU,FAC+

Vitis X novae-angliae Fern. (pro sp.) NI

Vitis palmata Vahl NI FACW- OBL FACW FACW* FACW-,OBL



North Central

North Plains

Central Plains




Vitis riparia Michx. FACW FACW FACW- FAC FAC FAC FAC* FACW FACU FACU,FACW

Vitis rotundifolia Michx. FAC- FAC FACW FAC- FAC-,FACW

Vitis rupestris Scheele UPL* UPL FACU-* FACU- UPL*,FACU-

Vitis shuttleworthii House FAC FAC

Vitis vinifera L. NI NI NI NI NI UPL NI UPL

Vitis vulpina L. FAC FAC+ FACW- FAC FAC FAC FAC* FAC*,FACW-

Vittaria lineata (L.) Sm. FAC NI* FAC

Voyria aphylla (Jacq.) Pers. FAC FAC

Voyria tenella Hook. FAC FAC

Vulpia bromoides (L.) S.F. Gray FACW UPL UPL NI FAC NI NI NI FACU* UPL FACU UPL,FACW

Vulpia myuros (L.) K.C. Gmel. UPL FACU FACU NI FACU FAC FACW FACW- FACU* FACU* UPL UPL UPL,FACW

Vulpia octoflora (Walt.) Rydb. UPL FACU+ FACU-* FACU UPL FACU* FACU* UPL UPL UPL UPL,FACU+

Wallenia lamarckiana (A. DC.) Mez FAC FAC

Wallenia yunquensis (Urban) Mez OBL OBL

Washingtonia filifera (L. Linden) H. Wendl. UPL FACW NI FACW UPL,FACW

Websteria confervoides (Poir.) S. Hooper OBL OBL

Wedelia calycina L.C. Rich. NI FAC+ FAC+

Weinmannia affinis Gray FACU FACU

Weinmannia pinnata L. OBL OBL

Wikstroemia bicornuta Hbd. FAC* FAC*

Wikstroemia oahuensis (Gray) Rock FAC FAC

Wilhelmsia physodes (Fisch. ex Ser.) McNeill FAC FAC

Wislizenia refracta Engelm. FACW FACU- FACU- NI FACU-,FACW

Wislizenia refracta ssp. refracta Engelm. NI NI NI FACU FACU

Wisteria frutescens (L.) Poir. FACW FACW FACW FACW FACW

Wolffia arrhiza (L.) Horkel ex C.F.H. Wimmer NI OBL OBL

Wolffia borealis (Engelm. ex Hegelm.) Landolt ex Landolt & Wildi NI NI NI NI NI NI NI OBL OBL

Wolffia brasiliensis Weddell OBL OBL OBL OBL OBL OBL OBL OBL OBL

Wolffia columbiana Karst. OBL OBL OBL OBL OBL OBL OBL OBL OBL

Wolffia globosa (Roxb.) Hartog & Plas NI OBL NI OBL

Wolffiella gladiata (Hegelm.) Hegelm. OBL OBL OBL OBL OBL OBL

Wolffiella lingulata (Hegelm.) Hegelm. OBL OBL OBL OBL OBL

Wolffiella oblonga (Phil.) Hegelm. OBL NI OBL OBL

Wollastonia biflora (L.) DC. FACU FACU

Woodwardia areolata (L.) T. Moore FACW+ OBL OBL OBL FACW+,OBL

Woodwardia fimbriata Sm. FACW FACW FACW FACW+ FACW,FACW+



North Central

North Plains

Central Plains




Woodwardia radicans (L.) J. Sm. OBL OBL

Woodwardia virginica (L.) Sm. OBL OBL OBL OBL OBL

Wullschlaegelia aphylla (Sw.) Reichenb. f. OBL OBL

Wyethia amplexicaulis (Nutt.) Nutt. NI NI FACU FAC- FACU,FAC-

Wyethia angustifolia (DC.) Nutt. FACU FACU- FACU-,FACU

Wyethia helianthoides Nutt. FACU FACW FACU,FACW

Xanthium spinosum L. FACU FACU FACU FACU FACU FACU FACU+ FACU FACU FAC+ FACU,FAC+

Xanthium strumarium L. FAC FAC FAC FAC FAC FAC- FAC FAC FAC FAC+ FAC FACU FACU,FAC+

Xanthocephalum gymnospermoides (Gray) Benth. & Hook. f. FACW- FAC* FAC*,FACW-

Xanthorhiza simplicissima Marsh. FACW FACW- FACW* FACW-,FACW

Ximenia americana L. FACU UPL UPL,FACU

Xiphidium ceruleum Aubl. FACW FACW

Xylocarpus granatum Koen. OBL OBL

Xylocarpus moluccensis (Lam.) Roemer OBL OBL

Xylosma crenata (St. John) St. John FAC* FAC*

Xylosma schwaneckeana (Krug & Urban) Urban OBL OBL

Xyris ambigua Bey. ex Kunth OBL OBL OBL OBL

Xyris baldwiniana J.A. Schultes OBL OBL OBL

Xyris brevifolia Michx. OBL OBL

Xyris caroliniana Walt. FACW+ FACW+ FACW OBL FACW,OBL

Xyris complanata R. Br. FACW FACW

Xyris difformis Chapman OBL OBL OBL OBL OBL

Xyris drummondii Malme OBL NI OBL

Xyris elliottii Chapman OBL OBL* FACW FACW,OBL

Xyris fimbriata Ell. OBL OBL NI OBL

Xyris flabelliformis Chapman OBL OBL

Xyris isoetifolia Kral OBL OBL

Xyris jupicai L.C. Rich. OBL OBL OBL OBL OBL OBL

Xyris laxifolia var. iridifolia (Chapman) Kral, comb. nov. ined. OBL OBL OBL OBL

Xyris longisepala Kral OBL OBL

Xyris montana Ries OBL OBL OBL

Xyris platylepis Chapman OBL OBL OBL OBL* OBL*,OBL

Xyris scabrifolia Harper OBL NI OBL

Xyris serotina Chapman OBL OBL

Xyris smalliana Nash OBL OBL NI OBL

Xyris stricta Chapman OBL NI OBL



North Central

North Plains

Central Plains




Xyris torta Sm. OBL OBL OBL OBL OBL

Yabea microcarpa (Hook. & Arn.) K.-Pol. FACU* FACU FACU+ UPL UPL,FACU+

Yeatesia viridiflora (Nees) Small FACW- FACW- FACW-

Youngia japonica (L.) DC. NI FACU NI FACU FAC FACU FACU,FAC

Yucca aloifolia L. FACU- UPL UPL,FACU-

Yucca gloriosa L. FAC NI FAC

Zannichellia palustris L. OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL OBL

Zantedeschia aethiopica (L.) Spreng. OBL OBL NI OBL

Zanthoxylum americanum P. Mill. FACU* FAC- FACU+ UPL UPL NI UPL,FAC-

Zanthoxylum clava-herculis L. FAC FAC FAC- FAC-,FAC

Zanthoxylum fagara (L.) Sarg. FACU* NI FACU*

Zanthoxylum hirsutum Buckl. UPL NI UPL

Zanthoxylum oahuense Hbd. FAC* FAC*

Zenobia pulverulenta (Bartr. ex Willd.) Pollard FACW OBL FACW,OBL

Zephyranthes atamasca (L.) Herbert FACW FACW FACW

Zephyranthes atamasca var. treatiae (S. Wats.) Meerow FAC FAC

Zephyranthes pulchella J.G. Sm. FACW- FACW-

Zephyranthes refugiensis F.B. Jones FACW- FACW-

Zephyranthes simpsonii Chapman FAC FAC

Zeuxine strateumatica (L.) Schlechter FAC NI NI FAC

Zigadenus densus (Desr.) Fern. OBL FACW+ FACW FACW,OBL

Zigadenus elegans Pursh NI UPL FAC- FACU FAC FACW+ FACU+ FACU FACU FACU UPL,FACW+

Zigadenus elegans ssp. glaucus (Nutt.) Hultén FAC+ FAC FACW NI FAC,FACW

Zigadenus fontanus Eastw. OBL OBL

Zigadenus glaberrimus Michx. OBL FACW+ FACW+ FACW+,OBL

Zigadenus leimanthoides Gray OBL FACW FACW+ FACW,OBL

Zigadenus vaginatus (Rydb.) J.F. Macbr. FAC FAC

Zigadenus venenosus S. Wats. NI FAC FAC FACU* FAC* FACU* FAC FACU*,FAC

Zigadenus virescens (Kunth) J.F. Macbr. FAC- FAC-

Zingiber zerumbet (L.) Sm. FACW FACU* FACU*,FACW

Zizania aquatica L. OBL OBL OBL OBL OBL NI OBL NI OBL OBL

Zizania latifolia (Griseb.) Turcz. ex Stapf OBL OBL

Zizania palustris var. interior (Fassett) Dore NI NI NI NI NI NI OBL OBL

Zizania texana A.S. Hitchc. OBL OBL

Zizaniopsis miliacea (Michx.) Doell & Aschers. OBL OBL OBL OBL OBL

Zizia aptera (Gray) Fern. FAC FACU FACU FACW- FAC FACU FAC FAC+ FACU,FACW-



North Central

North Plains

Central Plains




Zizia aurea (L.) W.D.J. Koch FAC FAC+ FAC+ FAC- FAC FAC- NI FAC-,FAC+

Zizia trifoliata (Michx.) Fern. UPL FAC- UPL,FAC-

Zostera japonica Aschers. & Graebn. OBL NI OBL

Zostera marina L. OBL OBL OBL OBL OBL OBL

Zostera pacifica L. OBL OBL


national list of vascular plant species that occur in wetlands

Documents