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Page 1 of 38
Vascular Plant Species List Cedar River Municipal Watershed
This vascular plant species list for the Cedar River Municipal Watershed (CRMW) was compiled from a series of botanical forays conducted in association with the University of Washington Burke Museum Herbarium, surveys for invasive plant species, several monitoring and research projects, and observations by CRMW biological staff during the course of their field work, 2001-2012. In the column "Species ID confidence", a "High" was given to specimens vouchered in the Burke Museum Herbarium, specimens collected and identified with high confidence by an experienced botanist but not vouchered, and species that are commonly known and could not be confused with any other species. All other species were given a "Good" confidence level. Only species that were collected and identified with at least good confidence by an experienced botanist are included in the list. Nomenclature is according to the USDA Natural Resources Conservation Service PLANTS Database (http://plants.usda.gov/java/). Where specimens were vouchered under a different name, the vouchered synonym is provided.
Family Genus (USDA, NRCS standard)
Species (USDA, NRCS standard) Subtaxon Genus synonym
Species/ subspecies synonym
Common Name Vouchered
at UW Herbarium
Species ID Confidence
Native/ Introduced Lifeform
Pinaceae Abies amabilis Pacific Silver fir Yes High N Tree Pinaceae Abies grandis Grand fir No High N Tree Pinaceae Abies lasiocarpa Subalpine fir No High N Tree Pinaceae Abies procera Noble fir No High N Tree
Aceraceae Acer circinatum Vine Maple Yes High N Shrub Aceraceae Acer glabrum var. douglasii Douglas maple Yes High N Tree Aceraceae Acer macrophyllum Big-leaf maple No High N Tree Aceraceae Acer pseudoplatanus Sycamore maple No High I Tree
Asteraceae Achillea millefolium var. occidentalis
ssp. Lanulosa Yarrow Yes High N Herb
Asteraceae Achillea millefolium Common Yarrow Yes High N Herb Berberidaceae Achlys triphylla Vanilla leaf Yes High N Herb
Ranunculaceae Aconitum columbianum ssp. columbianum
Monkshood Yes High N Herb
Ranunculaceae Actaea rubra Baneberry No High N Herb
Page 2 of 38
Family Genus (USDA, NRCS standard)
Species (USDA, NRCS standard) Subtaxon Genus synonym
Species/ subspecies synonym
Common Name Vouchered
at UW Herbarium
Species ID Confidence
Native/ Introduced Lifeform
Pteridaceae Adiantum pedatum Maidenhair fern Yes High N Fern
Apiaceae Aegopodium podagraria bishop's goutweed Yes High I Herb
Poaceae Agrostis capillaris tenuis colonial bentgrass Yes High I Graminoid
Poaceae Agrostis exarata spike bentgrass Yes High N Graminoid
Poaceae Agrostis humilis thurberiana Thurber
bentgrass, Alpine bentgrass
Yes High N Graminoid
Poaceae Agrostis hyemalis winter bentgrass Yes High N Graminoid Poaceae Agrostis idahoensis Idabho bentgrass Yes High N Graminoid Poaceae Agrostis oregonensis Oregon bentgrass No Good N Graminoid Poaceae Agrostis scabra rough bentgrass Yes High N Graminoid
Poaceae Agrostis stolonifera alba creeping bentgrass Yes High I Graminoid
Poaceae Aira caryophyllea silver hairgrass Yes High I Graminoid Lamiaceae Ajuga reptans common bugle Yes High I Herb Liliaceae Allium cernuum Nodding onion Yes High N Herb
Betulaceae Alnus rubra Red alder Yes High N Tree
Betulaceae Alnus viridis ssp. sinuata Sitka alder (slide alder) Yes High N Shrub
Poaceae Alopecurus aequalis Shortawn foxtail No Good N Graminoid
Rosaceae Amelanchier alnifolia Western
serviceberry (saskatoon)
Yes High N Shrub
Asteraceae Anaphalis margaritacea Pearly everlasting Yes High N Herb Ranunculaceae Anemone oregana blue windflower No High N Herb
Apiaceae Angelica canbyi Canby's angelica Yes High N Herb
Page 3 of 38
Family Genus (USDA, NRCS standard)
Species (USDA, NRCS standard) Subtaxon Genus synonym
Species/ subspecies synonym
Common Name Vouchered
at UW Herbarium
Species ID Confidence
Native/ Introduced Lifeform
Apiaceae Angelica genuflexa kneeling angelica No High N Herb
Asteraceae Antennaria racemosa raceme pussy-toes Yes High N Herb
Poaceae Anthoxanthum odoratum sweet vernalgrass Yes High I Graminoid
Ranunculaceae Aquilegia formosa western columbine Yes High N Herb
Brassicaceae Arabis drummondii Drummond's rockcress No Good N Herb
Brassicaceae Arabis eschscholtziana Eschscholtz's hairy rockcress No Good N Herb
Araucariaceae Araucaria araucana monkeypuzzle tree Yes High I tree
Asteraceae Arctium lappa Greater burdock No Good I Herb Asteraceae Arctium minus Lesser burdock Yes High I Herb Ericaceae Arctostaphylos columbiana Hairy manzanita Yes High N Shrub Ericaceae Arctostaphylos uva-ursi Kinnikinnick Yes High N Shrub
Ericaceae Arctostaphylos
X media (columbiana x
uva-ursi) Yes High N Shrub
Asteraceae Arnica latifolia Mountain arnica Yes High N Herb
Asteraceae Artemisia suksdorfii Suksdorfs
sagebrush,coastal mugwort
Yes High N Herb
Rosaceae Aruncus dioicus sylvester Bride's feathers Yes High N Herb Aristolochiaceae Asarum caudatum Wild Ginger No Good N Herb
Pteridaceae Aspidotis densa Indian's dream Yes High N Herb
Page 4 of 38
Family Genus (USDA, NRCS standard)
Species (USDA, NRCS standard) Subtaxon Genus synonym
Species/ subspecies synonym
Common Name Vouchered
at UW Herbarium
Species ID Confidence
Native/ Introduced Lifeform
Aspleniaceae Asplenium trichomanes maidenhair spleenwort Yes High N Fern
Dryopteridaceae Athyrium filix-femina Lady fern Yes High N Fern
Asteraceae Bidens cernua nodding beggar-ticks or sticktight Yes High N Herb
Blechnaceae Blechnum spicant Deer fern Yes High N Fern
Ophioglossaceae Botrychium multifidum Leathery grape fern Yes High N Fern
Saxifragaceae Boykinia occidentalis elata coastal brookfoam Yes High N Herb
Cabombaceae Brasenia schreberi water-shield, water-target Yes High N Herb
Poaceae Bromus vulgaris Columbia brome No Good N Graminoid Scrophulariaceae Buddleja davidii Butterfly bush No High I Shrub
Poaceae Calamagrostis canadensis bluejoint reedgrass Yes High N Graminoid
Poaceae Calamagrostis purpurascens purple reedgrass or pinegrass Yes High N Graminoid
Poaceae Calamagrostis sesquiflora one-and-a-half-fld reedgrass Yes High N Graminoid
Poaceae Calamagrostis stricta ssp. inexpansa northern reedgrass No Good N Graminoid
Callitrichaceae Callitriche heterophylla twoheaded water-starwort No High N Herb
Plantaginaceae Callitriche longipedunculata longstock waterstarwort Yes High N Herb
Callitrichaceae Callitriche marginata winged water-starwort Yes High N Herb
Page 5 of 38
Family Genus (USDA, NRCS standard)
Species (USDA, NRCS standard) Subtaxon Genus synonym
Species/ subspecies synonym
Common Name Vouchered
at UW Herbarium
Species ID Confidence
Native/ Introduced Lifeform
Ranunculaceae Caltha leptosepala ssp.
"leptosepala var.
leptosepala"
biflora var. rotundifolia
white marsh marigold Yes High N Herb
Ranunculaceae Caltha leptosepala ssp. howellii biflora white marsh marigold Yes High N Herb
Orchidaceae Calypso bulbosa fairy slipper No High N Herb
Campanulaceae Campanula rotundifolia Scotch
bellflower, ladys-thimble
Yes High N Herb
Campanulaceae Campanula scouleri Scoulers harebell or bellflower Yes High N Herb
Asteraceae Canadanthus modestus Aster giant mountain aster Yes High N Herb
Brassicaceae Cardamine nuttallii var. nuttallii palmate toothwort No Good N Herb
Brassicaceae Cardamine oligosperma
little western bittercress, few-
seeded bittercress
Yes High N Herb
Brassicaceae Cardamine oligosperma var. kamtschatica
umbel bittercress Yes High N Herb
Brassicaceae Cardamine pensylvanica PA bittercress Yes High N Herb Cyperaceae Carex angustata eurycarpa widefruit sedge Yes High N Graminoid Cyperaceae Carex aperta Columbian sedge No Good N Graminoid Cyperaceae Carex aquatilis var. dives Sitka sedge Yes High N Graminoid Cyperaceae Carex aquatilis water sedge Yes High N Graminoid
Cyperaceae Carex arcta northern cluster sedge No Good N Graminoid
Page 6 of 38
Family Genus (USDA, NRCS standard)
Species (USDA, NRCS standard) Subtaxon Genus synonym
Species/ subspecies synonym
Common Name Vouchered
at UW Herbarium
Species ID Confidence
Native/ Introduced Lifeform
Cyperaceae Carex brunnescens brownish sedge No Good N Graminoid
Cyperaceae Carex canescens gray sedge; silvery sedge Yes High N Graminoid
Cyperaceae Carex cusickii Cusicks sedge Yes High N Graminoid Cyperaceae Carex deweyana Deweys sedge Yes High N Graminoid Cyperaceae Carex echinata ssp. echinata prickley sedge Yes High N Graminoid
Cyperaceae Carex echinata ssp. phyllomanica
prickley sedge Yes High N Graminoid
Cyperaceae Carex echinata prickley sedge Yes High N Graminoid
Cyperaceae Carex hendersonii Hendersons sedge Yes High N Graminoid
Cyperaceae Carex hoodii Hoods sedge Yes High N Graminoid Cyperaceae Carex inops ssp. inops long-stolon sedge Yes High N Graminoid Cyperaceae Carex interior inland sedge Yes High N Graminoid
Cyperaceae Carex laeviculmis smoothstem sedge Yes High N Graminoid
Cyperaceae Carex lenticularis var. lipocarpa Kellogg sedge Yes High N Graminoid Cyperaceae Carex lenticularis lakeshore sedge Yes High N Graminoid
Cyperaceae Carex leptalea bristle-stalked sedge Yes High N Graminoid
Cyperaceae Carex limosa mud sedge, shore sedge Yes High N Graminoid
Cyperaceae Carex luzulina woodrush sedge Yes High N Graminoid Cyperaceae Carex mertensii Mertens sedge Yes High N Graminoid
Cyperaceae Carex microptera limnophila small-winged sedge Yes High N Graminoid
Cyperaceae Carex muricata rough sedge No Good N Graminoid Cyperaceae Carex nardina spike sedge Yes High N Graminoid
Page 7 of 38
Family Genus (USDA, NRCS standard)
Species (USDA, NRCS standard) Subtaxon Genus synonym
Species/ subspecies synonym
Common Name Vouchered
at UW Herbarium
Species ID Confidence
Native/ Introduced Lifeform
Cyperaceae Carex neurophora alpine nerve sedge Yes High N Graminoid
Cyperaceae Carex nigricans black alpine sedge Yes High N Graminoid
Cyperaceae Carex obnupta slough sedge Yes High N Graminoid
Cyperaceae Carex pachystachya thick-headed sedge Yes High N Graminoid
Cyperaceae Carex phaeocephala dunhead sedge, mt hare sedge Yes High N Graminoid
Cyperaceae Carex praticola meadow sedge Yes High N Graminoid Cyperaceae Carex preslii Presl's sedge Yes High N Graminoid Cyperaceae Carex rossii Ross' sedge Yes High N Graminoid Cyperaceae Carex saxatilis rock sedge Yes High N Graminoid Cyperaceae Carex sitchensis var. dives Sitka sedge Yes High N Graminoid Cyperaceae Carex spectabilis showy sedge Yes High N Graminoid Cyperaceae Carex stipata awlfruit sedge Yes High N Graminoid
Cyperaceae Carex utriculata Northwest Territory sedge Yes High N Graminoid
Cyperaceae Carex vesicaria inflated sedge, blister sedge Yes High N Graminoid
Cyperaceae Carex viridula little green sedge Yes High N Graminoid
Ericaceae Cassiope mertensiana var. mertensiana
Mertens mt
heather; western moss heather
Yes High N Shrub
Ericaceae Cassiope mertensiana Mertens mt heather Yes High N Shrub
Scrophulariaceae Castilleja hispida ssp. hispida harsh Indian paintbrush Yes High N Herb
Page 8 of 38
Family Genus (USDA, NRCS standard)
Species (USDA, NRCS standard) Subtaxon Genus synonym
Species/ subspecies synonym
Common Name Vouchered
at UW Herbarium
Species ID Confidence
Native/ Introduced Lifeform
Scrophulariaceae Castilleja miniata ssp. miniata
scarlet paintbrush,
common paintbrush
Yes High N Herb
Scrophulariaceae Castilleja miniata
scarlet paintbrush,
common paintbrush
Yes High N Herb
Scrophulariaceae Castilleja rupicola cliff Indian paintbrush Yes High N Herb
Rhamnaceae Ceanothus sanguineus Redstem ceanothus Yes High N Shrub
Asteraceae Centaurea stoebe maculosa Spotted knapweed Yes High I Herb
Caryophyllaceae Cerastium fontanum common chickweed Yes High I Herb
Caryophyllaceae Cerastium fontanum ssp. vulgare big chickweed Yes High I Herb Caryophyllaceae Cerastium viscosum sticky chickweed Yes High I Herb Ceratophyllaceae Ceratophyllum demersum coon's tail No Good N Herb
Ceratophyllaceae Ceratophyllum echinatum spineless hornwort Yes High N Herb
Onagraceae Chamerion angustifolium ssp. angustifolium
Epilobium Fireweed Yes High N Herb
Onagraceae Chamerion latifolium Epilobium dwarf fireweed; red willow-herb Yes High N Herb
Ericaceae Chimaphila menziesii little pipsissewa, little princes-pine Yes High N Herb
Page 9 of 38
Family Genus (USDA, NRCS standard)
Species (USDA, NRCS standard) Subtaxon Genus synonym
Species/ subspecies synonym
Common Name Vouchered
at UW Herbarium
Species ID Confidence
Native/ Introduced Lifeform
Ericaceae Chimaphila umbellata common pisissewa No Good N Herb
Onagraceae Circaea alpina enchanters nightshade Yes High N Herb
Asteraceae Cirsium arvense var. horridum Canada Thistle Yes High I Herb
Asteraceae Cirsium brevistylum Cluster or Short-styled thisle No High N Herb
Asteraceae Cirsium edule Edible thistle Yes High N Herb Asteraceae Cirsium vulgare Bull thistle Yes High I Herb
Portulacaceae Claytonia cordifolia Montia broadleaved
montia, Hearleaf springbeauty
Yes High N Herb
Portulacaceae Claytonia lanceolata Lanceleaf springbeauty Yes High N Herb
Portulacaceae Claytonia parviflora ssp. parviflora Montia littleleaf montia,
streambank springbeauty
Yes High N Herb
Portulacaceae Claytonia sibirica Siberian springbeauty Yes High N Herb
Portulacaceae Claytonia sibirica var. sibirica Montia Siberian springbeauty Yes High N Herb
Ranunculaceae Clematis vitalba Old man's beard No High I Shrub Liliaceae Clintonia uniflora Queen's cup Yes High N Herb
Polemoniaceae Collomia heterophylla Variableleaf collomia Yes High N Herb
Rosaceae Comarum palustris Potentilla purple cinquefoil, marsh cinquefoil Yes High N Herb
Apiaceae Conium maculatum poison-hemlock Yes High I Herb
Page 10 of 38
Family Genus (USDA, NRCS standard)
Species (USDA, NRCS standard) Subtaxon Genus synonym
Species/ subspecies synonym
Common Name Vouchered
at UW Herbarium
Species ID Confidence
Native/ Introduced Lifeform
Convolvulaceae Convolvulus arvensis Field bindweed No High I Herb
Orchidaceae Corallorhiza mertensiana western coral -root, Mertens
coral-root Yes High N Herb
Cornaceae Cornus canadensis Bunchberry Yes High N Shrub Cornaceae Cornus nuttallii Pacific Dogwood Yes High N Tree
Cornaceae Cornus sericea ssp. sericea stolonifera Redosier dogwood Yes High N Shrub
Cornaceae Cornus unalaschkensis western
cordilleran bunchberry
Yes High N Shrub
Fumariaceae Corydalis scouleri Scouler's corydalis Yes High N Herb
Betulaceae Corylus cornuta Beaked hazelnut No High N Shrub Rosaceae Cotoneaster horizontalis Cotoneaster Yes High I Shrub
Rosaceae Crataegus monogyna oneseed hawthorn Yes High I Tree
Asteraceae Crepis capillaris Smooth hawksbeard Yes High I Herb
Pteridaceae Cryptogramma acrostichoides American rockbrake Yes High N Herb
Pteridaceae Cryptogramma crispa Parsley fern Yes High N Fern Fabaceae Cytisus scoparius Scot's broom Yes High N Shrub Poaceae Dactylis glomerata Orchardgrass Yes High I Graminoid Poaceae Danthonia intermedia timber oatgrass Yes High N Graminoid Poaceae Danthonia spicata poverty oatgrass Yes High N Graminoid
Ranunculaceae Delphinium glaucum pale larkspur Yes High N Herb Poaceae Deschampsia cespitosa tufted harigrass Yes High N Graminoid
Page 11 of 38
Family Genus (USDA, NRCS standard)
Species (USDA, NRCS standard) Subtaxon Genus synonym
Species/ subspecies synonym
Common Name Vouchered
at UW Herbarium
Species ID Confidence
Native/ Introduced Lifeform
Poaceae Deschampsia elongata slender hairgrass Yes High N Graminoid
Caryophyllaceae Dianthus armeria grass pink, Deptford pink Yes High I Herb
Fumariaceae Dicentra formosa Pacific bleeding heart Yes High N Herb
Poaceae Dichanthelium acuminatum
western panicgrass,
tapered rosette grass
No Good N Graminoid
Poaceae Dichanthelium acuminatum var. fasciculatum
Panicum occidentale western
panicgrass No Good N Graminoid
Scrophulariaceae Digitalis purpurea Foxglove Yes High I Herb
Dipsacaceae Dipsacus fullonum Fullers (common) teasel No Good I Herb
Primulaceae Dodecatheon jeffreyi Sierra shootingstar Yes High N Herb
Primulaceae Dodecatheon pulchellum Darkthroat shootingstar Yes High N Herb
Droseraceae Drosera rotundifolia Roundleaf sundew Yes High N Herb
Dryopteridaceae Dryopteris expansa Spiny wood fern Yes High N Fern Cyperaceae Dulichium arundinaceum threeway sedge Yes High N Graminoid Cyperaceae Eleocharis acicularis needle spikerush No Good N Graminoid Cyperaceae Eleocharis ovata ovoid spike-rush Yes High N Graminoid
Cyperaceae Eleocharis palustris common spike-rush, creeping
spike-rush Yes High N Graminoid
Page 12 of 38
Family Genus (USDA, NRCS standard)
Species (USDA, NRCS standard) Subtaxon Genus synonym
Species/ subspecies synonym
Common Name Vouchered
at UW Herbarium
Species ID Confidence
Native/ Introduced Lifeform
Cyperaceae Eleocharis quinqueflora pauciflora few-flowered spike-rush Yes High N Graminoid
Poaceae Elymus glaucus blue wildrye Yes High N Graminoid
Onagraceae Epilobium ciliatum fringed willowherb No Good N Herb
Onagraceae Epilobium ciliatum ssp. glandulosum
glandulosum fringed willowherb Yes High N Herb
Onagraceae Epilobium ciliatum ssp. watsonii watsonii
fringed willowherb;
Watsons willow-herb
Yes High N Herb
Onagraceae Epilobium hornemannii Hornemann's willowherb Yes High N Herb
Onagraceae Epilobium luteum yellow willow-herb Yes High N Herb
Onagraceae Epilobium minutum
small-flowered willow-herb;
chaperral willowherb
Yes High N Herb
Equisetaceae Equisetum arvense Field horsetail Yes High N Herb Equisetaceae Equisetum fluviatile Swamp horsetail Yes High N Herb Equisetaceae Equisetum palustre Marsh horsetail Yes High N Herb Equisetaceae Equisetum telmateia var. braunii Giant horsetail Yes High N Herb
Equisetaceae Equisetum variegatum var. alaskanum
Varigated horsetail Yes High N Herb
Equisetaceae Equisetum variegatum Varigated horsetail Yes High N Herb
Page 13 of 38
Family Genus (USDA, NRCS standard)
Species (USDA, NRCS standard) Subtaxon Genus synonym
Species/ subspecies synonym
Common Name Vouchered
at UW Herbarium
Species ID Confidence
Native/ Introduced Lifeform
Asteraceae Erigeron aureus golden fleabane,
alpine yellow daisy
Yes High N Herb
Asteraceae Erigeron peregrinus ssp. callianthemus
Subalpine daisy, wandering daisy,
fleabane Yes High N Herb
Asteraceae Erigeron philadelphicus Philadelphia daisy or fleabane Yes High N Herb
Asteraceae Erigeron strigosus prairie fleabane No Good N Herb Cyperaceae Eriophorum angustifolium tall cottongrass Yes High N Graminoid
Cyperaceae Eriophorum angustifolium ssp. angustifolium
polystachion many-spiked cotton-grass Yes High N Graminoid
Cyperaceae Eriophorum brachyantherum northland cottonsedge Yes High N Graminoid
Cyperaceae Eriophorum gracile slender cotton-grass Yes High N Graminoid
Asteraceae Eriophyllum lanatum common woolly sunflower Yes High N Herb
Asteraceae Eucephalus engelmannii Aster Engelmann's aster Yes High N Herb
Scrophulariaceae Euphrasia nemorosa officinalis common eyebright Yes High I Herb
Poaceae Festuca rubra red fescue Yes High N Graminoid
Rosaceae Fragaria vesca ssp. bracteata also, var. crinita woodland strawberry Yes High N Herb
Rosaceae Fragaria vesca woodland strawberry Yes High N Herb
Page 14 of 38
Family Genus (USDA, NRCS standard)
Species (USDA, NRCS standard) Subtaxon Genus synonym
Species/ subspecies synonym
Common Name Vouchered
at UW Herbarium
Species ID Confidence
Native/ Introduced Lifeform
Rosaceae Fragaria virginiana ssp. platypetala
Virginia strawberry Yes High N Herb
Rhamnaceae Frangula purshiana Rhamnus Cascara Yes High N Shrub
Lamiaceae Galeopsis tetrahit brittlestem hempnettle No Good I Herb
Rubiaceae Galium aparine var
echinospermum and var aparine
cleaver, goose-grass; stickywilly Yes High N Herb
Rubiaceae Galium kamtschaticum boreal bedstraw,
northern wild licorice
Yes High N Herb
Rubiaceae Galium mexicanum ssp. asperrimum
asperrimum Mexican bedstraw Yes High N Herb
Rubiaceae Galium odorata Asperula sweet-scented bedstraw Yes High I Herb
Rubiaceae Galium parisiense wall bedstraw Yes High I Herb
Rubiaceae Galium trifidum ssp. columbianum
var pacificum threepetal bedstraw Yes High N Herb
Rubiaceae Galium trifidum threepetal bedstraw Yes High N Herb
Rubiaceae Galium triflorum
sweet-scented bedstraw; fragrant
bedstraw
Yes High N Herb
Ericaceae Gaultheria ovatifolia Western
teaberry, oregon wintergreen
Yes High N Shrub
Ericaceae Gaultheria shallon Salal Yes High N Shrub
Page 15 of 38
Family Genus (USDA, NRCS standard)
Species (USDA, NRCS standard) Subtaxon Genus synonym
Species/ subspecies synonym
Common Name Vouchered
at UW Herbarium
Species ID Confidence
Native/ Introduced Lifeform
Geraniaceae Geranium carolinianum Carolina geranium No High N Herb
Geraniaceae Geranium molle Dovefoot geranium Yes High I Herb
Geraniaceae Geranium robertianum Herb robert Yes High I Herb
Rosaceae Geum macrophyllum var. macrophyllum
Oregon avens,
large leaved avens
Yes High N Herb
Rosaceae Geum macrophyllum var. perincisum
largeleaf avens Yes High N Herb
Rosaceae Geum macrophyllum largeleaf avens Yes High N Herb Lamiaceae Glechoma hederacea ground ivy Yes High I Herb
Poaceae Glyceria borealis small floating mannagrass Yes High N Graminoid
Poaceae Glyceria elata mannagrass Yes High N Graminoid
Orchidaceae Goodyera oblongifolia Rattlesnake plantain No Good N Herb
Dryopteridaceae Gymnocarpium dryopteris Oak fern Yes High N Fern Araliaceae Hedera helix English ivy No High I Shrub Apiaceae Heracleum maximum lanatum cow-parsnip Yes High N Herb
Saxifragaceae Heuchera glabra Smooth
alumroot, alpine heuchera
Yes High N Herb
Saxifragaceae Heuchera micrantha var. diversifolia Small flowered alumroot Yes High N Herb
Saxifragaceae Heuchera micrantha var. micrantha Crevice alumroot Yes High N Herb Asteraceae Hieracium albiflorum White hawkweed Yes High N Herb
Asteraceae Hieracium aurantiacum Orange hawkweed Yes High I Herb
Page 16 of 38
Family Genus (USDA, NRCS standard)
Species (USDA, NRCS standard) Subtaxon Genus synonym
Species/ subspecies synonym
Common Name Vouchered
at UW Herbarium
Species ID Confidence
Native/ Introduced Lifeform
Asteraceae Hieracium caespitosum Yellow (meadow) hawkweed Yes High I Herb
Asteraceae Hieracium lachenalii Common hawkweed No High I Herb
Asteraceae Hieracium piloselloides Tall hawkweed No High I Herb
Asteraceae Hieracium sabatum European hawkweed No High I Herb
Poaceae Holcus lanatus common velvetgrass No High I Graminoid
Rosaceae Holodiscus discolor Oceanspray Yes High N Shrub
Liliaceae Hyacinthoides hispanica X non-scripta bluebells Yes High I Herb
Apiaceae Hydroctyle ranunculoides water pennywort No High N Herb Hydrophyllaceae Hydrophyllum tenuipes Pacific waterleaf Yes High N Herb
Hypericaceae Hypericum anagalloides bog St. Johns-wort, Tinkers
penny Yes High N Herb
Hypericaceae Hypericum perforatum Common St. John's wort Yes High I Herb
Asteraceae Hypochaeris radicata Hairy cat's ear No High I Herb Aquifoliaceae Ilex aquifolium English holly Yes High I Shrub
Balsaminaceae Impatiens capensis Spotted jewelweed No High I Herb
Balsaminaceae Impatiens glandulifera Policeman's helmet No High I Herb
Isoetaceae Isoetes occidentalis western quillwort Yes High N Graminoid Isoetaceae Isoetes tenella echinospora spiny quillwort Yes High N Graminoid Juncaceae Juncus acuminatus tapered rush Yes High N Graminoid
Page 17 of 38
Family Genus (USDA, NRCS standard)
Species (USDA, NRCS standard) Subtaxon Genus synonym
Species/ subspecies synonym
Common Name Vouchered
at UW Herbarium
Species ID Confidence
Native/ Introduced Lifeform
Juncaceae Juncus arcticus ssp. littoralis balticus Baltic rush, mountain rush Yes High N Graminoid
Juncaceae Juncus biglumis twoflowered rush Yes High N Graminoid Juncaceae Juncus bufonius toad rush Yes High N Graminoid Juncaceae Juncus bulbosus bulbous rush Yes High I Graminoid Juncaceae Juncus covillei Coville's rush Yes High N Graminoid Juncaceae Juncus drummondii Drummonds rush Yes High N Graminoid Juncaceae Juncus effusus Common rush Yes High N Graminoid
Juncaceae Juncus ensifolius dagger-leaf rush, swordleaf rush Yes High N Graminoid
Juncaceae Juncus filiformis thread rush Yes High N Graminoid Juncaceae Juncus mertensianus Mertens rush Yes High N Graminoid Juncaceae Juncus nevadensis var. badius Sierra rush No Good N Graminoid Juncaceae Juncus parryi Parrys rush Yes High N Graminoid Juncaceae Juncus supiniformis hairyleaf rush Yes High N Graminoid Juncaceae Juncus supinus bulbous rush Yes High I Graminoid
Juncaceae Juncus tenuis slender rush, poverty rush Yes High N Graminoid
Juncaceae Juncus tweedyi Tweedy's rush Yes High N Graminoid Cupressaceae Juniperus chinensis chinese juniper Yes High I Shrub
Cupressaceae Juniperus communis common juniper, mountain juniper Yes High N Shrub
Ericaceae Kalmia microphylla occidentalis w swamp laurel, alpine laurel Yes High N Shrub
Lamiaceae Lamiastrum galeobdolon Yellow archangel No High I Herb
Asteraceae Lapsana communis Common nipplewort No Good I Herb
Fabaceae Lathyrus nevadensis Sierra pea No Good N Herb
Page 18 of 38
Family Genus (USDA, NRCS standard)
Species (USDA, NRCS standard) Subtaxon Genus synonym
Species/ subspecies synonym
Common Name Vouchered
at UW Herbarium
Species ID Confidence
Native/ Introduced Lifeform
Ericaceae Ledum groenlandicum Laborador tea Yes High N Shrub Poaceae Leersia oryzoides cutgrass, rice c. Yes High N Graminoid
Lemnaceae Lemna minor water lentil;
common duckweed
Yes High N Herb
Saxifragaceae Leptarrhena pyrolifolia false saxifrage,
leatherleaf saxifrage
Yes High N Herb
Asteraceae Leucanthemum vulgare Chrysanthemum leucanthemum Oxeye daisy, marguerite daisy Yes High I Herb
Apiaceae Ligusticum grayi Grays licorice-root Yes High N Herb
Liliaceae Lilium columbianum Tiger lily, Columbia lily Yes High N Herb
Scrophulariaceae Linaria dalmatica Dalmatian toadflax Yes High I Herb
Scrophulariaceae Linaria vulgaris Common
Toadflax, Butter & eggs
Yes High I Herb
Caprifoliaceae Linnaea borealis Twinflower Yes High N Herb
Orchidaceae Listera cordata heart-leaf twayblade Yes High N Herb
Apiaceae Lomatium martindalei var. angustatum
Martindales lomatium, few-frd lomatium
Yes High N Herb
Caprifoliaceae Lonicera involucrata var. involucrata
Black twinberry Yes High N Shrub
Caprifoliaceae Lonicera involucrata Black twinberry Yes High N Shrub Fabaceae Lotus corniculatus birdsfoot-trefoil Yes High I Herb
Page 19 of 38
Family Genus (USDA, NRCS standard)
Species (USDA, NRCS standard) Subtaxon Genus synonym
Species/ subspecies synonym
Common Name Vouchered
at UW Herbarium
Species ID Confidence
Native/ Introduced Lifeform
Fabaceae Lotus micranthus small-flowered deervetch Yes High N Herb
Onagraceae Ludwigia palustris false loosestrife Yes High N Herb
Rosaceae Luetkea pectinata partridgefoot, luetkea Yes High N Herb
Asteraceae Luina hypoleuca silverback luina Yes High N Herb Brassicaceae Lunaria annua honesty Yes High I Herb
Fabaceae Lupinus albicaulis Sicklekeel lupine Yes High N Herb Fabaceae Lupinus latifolius ssp. latifolius broadleaf lupine Yes High N Herb Fabaceae Lupinus lepidus prairie lupine Yes High N Herb Juncaceae Luzula campestris field woodrush Yes High I Graminoid Juncaceae Luzula comosa Pacific woodrush Yes High N Graminoid
Juncaceae Luzula multiflora ssp. frigida campestris common woodrush Yes High N Graminoid
Juncaceae Luzula multiflora common woodrush Yes High N Herb
Juncaceae Luzula parviflora smallflowered woodrush Yes High N Graminoid
Lycopodiaceae Lycopodium annotinum Stiff clubmoss Yes High N Herb
Lycopodiaceae Lycopodium clavatum Running clubmoss Yes High N Herb
Lycopodiaceae Lycopodium sitchense Sitka clubmoss Yes High N Herb
Lamiaceae Lycopus uniflorus northern bugleweed Yes High N Herb
Araceae Lysichiton americanus Skunk cabbage Yes High N Herb Berberidaceae Mahonia nervosa Berberis Oregon grape Yes High N Shrub
Liliaceae Maianthemum dilatatum False lily of the valley Yes High N Herb
Page 20 of 38
Family Genus (USDA, NRCS standard)
Species (USDA, NRCS standard) Subtaxon Genus synonym
Species/ subspecies synonym
Common Name Vouchered
at UW Herbarium
Species ID Confidence
Native/ Introduced Lifeform
Liliaceae Maianthemum racemosum ssp. amplexicaule
Smilacina racemosa
False solomon's seal, feathery false lily of the
valley
Yes High N Herb
Liliaceae Maianthemum stellatum Smilacina stellata Starry false lily of the valley, starry
solomon's seal Yes High N Herb
Roseaceae Malus fusca Pacific crabapple Yes High N Tree
Rosaceae Malus fusca Pyrus western crabapple Yes High N Tree
Poaceae Melica subulata var. subulata Oniongrass Yes High N Graminoid Poaceae Melica subulata Oniongrass Yes High N Graminoid
Lamiaceae Mentha arvensis wild mint No High N Herb
Ericaceae Menziesia ferruginea var. glabella mock azalea, fools huckleberry Yes High N Shrub
Boraginaceae Mertensia paniculata var. borealis tall bluebells, pan bluebells Yes High N Herb
Boraginaceae Mertensia paniculata tall bluebells, pan bluebells Yes High N Herb
Scrophulariaceae Mimulus guttatus yellow monkey-flower Yes High N Herb
Scrophulariaceae Mimulus moschatus muskflower No Good N Herb
Saxifragaceae Mitella breweri Brewers mitrewort Yes High N Herb
Saxifragaceae Mitella caulescens Slightstemmed miterwort Yes High N Herb
Page 21 of 38
Family Genus (USDA, NRCS standard)
Species (USDA, NRCS standard) Subtaxon Genus synonym
Species/ subspecies synonym
Common Name Vouchered
at UW Herbarium
Species ID Confidence
Native/ Introduced Lifeform
Saxifragaceae Mitella pentandra alpine mitrewort,
five-stamened mitrewort
Yes High N Herb
Caryophyllaceae Moehringia macrophylla Arenaria bigleaf sandwort Yes High N Herb
Pyrolaceae Moneses uniflora Pyrola woodnymph, single delight Yes High N Herb
Monotropaceae Monotropa hypopithys Hypopitys monotropa fringed pinesap Yes High N Herb Monotropaceae Monotropa uniflora Indian-pipe Yes High N Herb
Asteraceae Mycelis muralis Lactuca wall lettuce No Good I Herb
Boraginaceae Myosotis laxa small-fld forget-me-not Yes High N Herb
Boraginaceae Myosotis scorpioides common forget-me-not Yes High I Herb
Myricaceae Myrica gale Sweet gale Yes High N Herb Haloragaceae Myriophyllum spicatum Eurasian milfoil Yes High I Herb
Najadaceae Najas flexilis nodding waternymph No High N Herb
Brassicaceae Nasturtium officinale Rorippa nasturtium-aquaticum watercress No High I Herb
Hydrophyllaceae Nemophila parviflora smallflower nemophila Yes High N Herb
Scrophulariaceae Nothochelone nemorosa Turtlehead, woodland
beardtongue Yes High N Herb
Nymphaeaceae Nuphar lutea ssp. polysepala
polysepala spatterdock, Indian pond lily Yes High N Herb
Nymphaeaceae Nymphaea odorata White water lily No High I Herb Roseaceae Oemleria cerasiformis Indian plum No Good N Shrub
Page 22 of 38
Family Genus (USDA, NRCS standard)
Species (USDA, NRCS standard) Subtaxon Genus synonym
Species/ subspecies synonym
Common Name Vouchered
at UW Herbarium
Species ID Confidence
Native/ Introduced Lifeform
Apiaceae Oenanthe sarmentosa water parsley No High N Herb Araliaceae Oplopanax horridus Devil's club Yes High N Shrub
Pyrolaceae Orthilia secunda Pyrola one-sided
wintergreen, sidebells pyrola
Yes High N Herb
Apiaceae Osmorhiza berteroi chilensis mountain sweet-
root; sweet cicelly
Yes High N Herb
Apiaceae Osmorhiza purpurea purple sweet-
root, sweet cicelly
Yes High N Herb
Asteraceae Packera pseudaurea var. pseudaurea
Senecio pseudaureus Beach groundsel,
falsegold groundsel
Yes High N Herb
Poaceae Panicum capillare witchgrass Yes High N Graminoid
Scrophulariaceae Parentucellia viscosa
yellow parentucellia;
yellow glandweed
Yes High I Herb
Celastraceae Paxistima myrsinites Pachistima myrtle boxwood, Ore boxwood Yes High N Shrub
Orobanchaceae Pedicularis bracteosa var. latifolia bracted lousewort Yes High N Herb
Orobanchaceae Pedicularis bracteosa bracted lousewort Yes High N Herb
Orobanchaceae Pedicularis groenlandica elephants head, pink elephants, Yes High N Herb
Page 23 of 38
Family Genus (USDA, NRCS standard)
Species (USDA, NRCS standard) Subtaxon Genus synonym
Species/ subspecies synonym
Common Name Vouchered
at UW Herbarium
Species ID Confidence
Native/ Introduced Lifeform
Plantaginaceae Penstemon davidsonii var. menziesii
Davidsons penstemon,
Menzies' penstemon
Yes High N Herb
Scrophulariaceae Penstemon procerus var. tolmiei
small-lvd penstemon, tiny-
bloom penstemon,
Tomie's penstemon
Yes High N Herb
Scrophulariaceae Penstemon rupicola cliff or rock penstemon Yes High N Herb
Scrophulariaceae Penstemon serrulatus coast penstemon,
serrulate penstemon
Yes High N Herb
Asteraceae Petasites frigidus var. palmatus Sweet coltsfoot Yes High N Herb
Poaceae Phalaris arundinacea Reed canary grass Yes High I Graminoid
Hydrangeaceae Philadelphus lewisii Mock orange No Good N Tree
Poaceae Phleum alpinum alpine timothy, mt timothy Yes High N Graminoid
Polemoniaceae Phlox diffusa spreading phlox Yes High N Herb
Ericaceae Phyllodoce empetriformis pink mountainheath Yes High N Shrub
Rosaceae Physocarpus capitatus Pacific ninebark No High N Shrub Pinaceae Picea sitchensis Sitka spruce No High N Tree Pinaceae Pinus contorta Shore pine No High N Tree
Page 24 of 38
Family Genus (USDA, NRCS standard)
Species (USDA, NRCS standard) Subtaxon Genus synonym
Species/ subspecies synonym
Common Name Vouchered
at UW Herbarium
Species ID Confidence
Native/ Introduced Lifeform
Pinaceae Pinus monticola Western white pine No High N Tree
Plantaginaceae Plantago lanceolata
English plantain, narrowleaf
plantain, buckhorn
plantain, ribwort
Yes High I Herb
Plantaginaceae Plantago major Common plantain Yes High I Herb
Orchidaceae Platanthera aquilonis Habenaria hyperborea northern green orchid Yes High N Herb
Orchidaceae Platanthera dilatata var. dilatata Habenaria
white bog-orchid, bog candle, scent-bottle, leafy white
orchid
Yes High N Herb
Orchidaceae Platanthera dilatata var. leucostachys
Habenaria
white bog-orchid, bog candle, scent-bottle, leafy white
orchid
Yes High N Herb
Orchidaceae Platanthera stricta Habenaria Slender bog
orchid, Modoc bog orchid
Yes High N Herb
Poaceae Pleuropogon refractus nodding semaphoregrass Yes High N Graminoid
Poaceae Poa annua Annual bluegrass Yes High I Graminoid Poaceae Poa palustris fowl bluegrass No Good N Graminoid
Poaceae Poa pratensis Kentucky bluegrass Yes High I Graminoid
Page 25 of 38
Family Genus (USDA, NRCS standard)
Species (USDA, NRCS standard) Subtaxon Genus synonym
Species/ subspecies synonym
Common Name Vouchered
at UW Herbarium
Species ID Confidence
Native/ Introduced Lifeform
Poaceae Poa trivialis roughstalk bluegrass Yes High I Graminoid
Polygonaceae Polygonum amphibium western
ladysthumb, water knotweed
Yes High N Herb
Polygonaceae Polygonum amphibium var. stipulaceum
water smartweed, No High N Herb
Polygonaceae Polygonum amphibium var. emersum
Longroot smartweek,
longroot knotweed
No High N Herb
Polygonaceae Polygonum bistortoides
American bistort, western
bindweed, snakeweed
Yes High N Herb
Polygonaceae Polygonum punctatum dotted smartweed No Good N Herb
Polygonace ae Polygonum x bohemicum, (cuspidatum x sachalinense)
Bohemian knotweed No High I Herb
Polypodiaceae Polypodium glycyrrhiza Licorice fern Yes High N Fern
Polypodiaceae Polypodium hesperium western polypody Yes High N Fern
Dryopteridaceae Polystichum lonchitis northern hollyfern Yes High N Fern
Dryopteridaceae Polystichum munitum Sword fern Yes High N Fern
Salicaceae Populus balsamifera ssp. trichocarpa
Black cottonwood No High N Tree
Page 26 of 38
Family Genus (USDA, NRCS standard)
Species (USDA, NRCS standard) Subtaxon Genus synonym
Species/ subspecies synonym
Common Name Vouchered
at UW Herbarium
Species ID Confidence
Native/ Introduced Lifeform
Potamogetonaceae Potamogeton amplifolius largeleaf pondweed Yes High N Herb
Potamogetonaceae Potamogeton epihydrus ribbon-leaf pondweed Yes High N Herb
Potamogetonaceae Potamogeton friesii Fries' pondweed No High N Herb
Potamogetonaceae Potamogeton gramineus vaiableleaf pondweed Yes High N Herb
Potamogetonaceae Potamogeton robbinsii Robbins' pondweed Yes High N Herb
Potamogetonaceae Potamogeton zosteriformis
eel-grass pondweed,
flatstem pondweed
Yes High N Herb
Rosaceae Potentilla drummondii Drummonds cinquefoil Yes High N Herb
Rosaceae Potentilla flabellifolia
fan-leaf cinquefoil, high
mountain cinquefoil
Yes High N Herb
Rosaceae Potentilla norvegica Norwegian cinquefoil No Good N Herb
Rosaceae Potentilla recta Sulfur cinquefoil No High I Herb
Liliaceae Prosartes hookeri Disporum Hooker's fairybells Yes High N Herb
Lamiaceae Prunella vulgaris ssp. lanceolata self-heal, all-heal Yes High N Herb
Rosaceae Prunus emarginata Bitter cherry Yes High N Tree
Page 27 of 38
Family Genus (USDA, NRCS standard)
Species (USDA, NRCS standard) Subtaxon Genus synonym
Species/ subspecies synonym
Common Name Vouchered
at UW Herbarium
Species ID Confidence
Native/ Introduced Lifeform
Asteraceae Pseudognaphalium stramineum Gnaphalium chilense cotton-batting plant Yes High N Herb
Pinaceae Pseudotsuga menziesii Douglas-fir Yes High N Tree
Dennstaedtiaceae Pteridium aquilinum Bracken fern Yes High N Fern
Monotropaceae Pterospora andromedea
woodland pinedrops,
albany-beechdrops
Yes High N Herb
Ericaceae Pyrola minor snowline wintergreen Yes High N Herb
Ericaceae Pyrola picta white vein wintergreen Yes High N Herb
Ranunculaceae Ranunculus aquatilis var. hispidulus white water crowfoot Yes High N Herb
Ranunculaceae Ranunculus flammula lesser spearwort; greater creeping
spearwort Yes High N Herb
Ranunculaceae Ranunculus occidentalis western buttercup Yes High N Herb
Ranunculaceae Ranunculus repens Creeping Buttercup Yes High I Herb
Ranunculaceae Ranunculus trichophyllus var. trichophyllus
aquatilis, var. capillaceus
Threadleaf crowfoot Yes High N Herb
Ranunculaceae Ranunculus uncinatus var. parviflorus little buttercup; Idaho buttercup Yes High N Herb
Ericaceae Rhododendron albiflorum Pacific rhododendron Yes High N Shrub
Grossulariaceae Ribes bracteosum Stink currant Yes High N Shrub
Page 28 of 38
Family Genus (USDA, NRCS standard)
Species (USDA, NRCS standard) Subtaxon Genus synonym
Species/ subspecies synonym
Common Name Vouchered
at UW Herbarium
Species ID Confidence
Native/ Introduced Lifeform
Grossulariaceae Ribes lacustre Black gooseberry Yes High N Shrub
Grossulariaceae Ribes sanguineum Red-flowering currant No High N Shrub
Fabaceae Rovinia pseudoacacia
Black locust No High I Tree
Brassicaceae Rorippa curvipes var truncata obtusa bluntleaf
yellowcress No Good N Herb
Brassicaceae Rorippa curvisiliqua curvepod yellowcress No Good N Herb
Rosaceae Rosa gymnocarpa Baldhip rose Yes High N Shrub Roseaceae Rosa nutkana Nookta rose No High N Shrub
Rosaceae Rubus armeniacus discolor Himalayan Blackberry No High I Shrub
Rosaceae Rubus idaeus ssp. strigosus var. gracilipes Grayleaf red raspberry Yes High N Shrub
Rosaceae Rubus laciniatus
Evergreen blackberry,
cutleaf blackberry
Yes High I Shrub
Rosaceae Rubus lasiococcus Dwarf bramble Yes High N Shrub
Rosaceae Rubus leucodermis
Blackcap raspberry, whitebark raspberry
No High N Shrub
Rosaceae Rubus parviflorus Thiimbleberry Yes High N Shrub
Rosaceae Rubus pedatus Five-leaf bramble Yes High N Shrub
Rosaceae Rubus spectabilis Salmonberry Yes High N Shrub
Page 29 of 38
Family Genus (USDA, NRCS standard)
Species (USDA, NRCS standard) Subtaxon Genus synonym
Species/ subspecies synonym
Common Name Vouchered
at UW Herbarium
Species ID Confidence
Native/ Introduced Lifeform
Rosaceae Rubus ursinus Trailing blackberry Yes High N Shrub
Polygonaceae Rumex acetosella
sheep sorrel, red sorrel, cow sorrel, field
sorrel,
Yes High I Herb
Polygonaceae Rumex crispus curly dock, sour dock, yellow dock Yes High I Herb
Polygonaceae Rumex pulcher fiddle dock Yes High I Herb
Fabaceae Rupertia physodes Psoralea Cal-tea, Forest scurf-pea Yes High N Herb
Caryophyllaceae Sagina procumbens
procumbent pearlwort,
birdeye pearlwort
Yes High I Herb
Caryophyllaceae Sagina saginoides alpine pearlwort, arctic pearlwort Yes High N Herb
Salicaceae Salix hookeriana Hooker's willow Yes High N Shrub Salicaceae Salix lucida Pacific willow Yes High N Shrub
Salicaceae Salix planifolia ssp. planifolia phylicifolia var planifolia
diamondleaf willow Yes High N Shrub
Salicaceae Salix scouleriana Scouler's willow No High N Shrub Salicaceae Salix sitchensis Sitka willow Yes High N Shrub
Caprifoliaceae Sambucus racemosa var. racemosa var arborescens Red elderberry Yes High N Shrub
Caprifoliaceae Sambucus racemosa Red elderberry Yes High N Shrub Rosaceae Sanguisorba minor small burnet Yes High I Herb Rosaceae Sanguisorba officinalis great burnet No Good N Herb
Page 30 of 38
Family Genus (USDA, NRCS standard)
Species (USDA, NRCS standard) Subtaxon Genus synonym
Species/ subspecies synonym
Common Name Vouchered
at UW Herbarium
Species ID Confidence
Native/ Introduced Lifeform
Saxifragaceae Saxifraga bronchialis ssp. austromontana
matted saxifrage, spotted saxifrage Yes High N Herb
Saxifragaceae Saxifraga ferruginea var. vreelandii var macounii Vreeland's saxifrage Yes High N Herb
Saxifragaceae Saxifraga ferruginea rusty saxifrage, Alaska saxifrage Yes High N Herb
Saxifragaceae Saxifraga mertensiana wood saxifrage,
Mertens saxifrage
Yes High N Herb
Saxifragaceae Saxifraga nelsoniana ssp. nelsoniana
punctata Hearleaf saxifrage No Good N Herb
Cyperaceae Schoenoplectus acutus var. acutus Scirpus hardstem
bulrush, viscid bulrush
Yes High N Graminoid
Cyperaceae Schoenoplectus fluviatilis Bolboschoenus River bullrush No Good N Graminoid
Cyperaceae Scirpus cyperinus woolgrass Yes High N Graminoid Cyperaceae Scirpus fluviatilis river bulrush Yes High N Graminoid
Cyperaceae Scirpus microcarpus small-flowered
bulrush, panicled bulrush
Yes High N Graminoid
Crassulaceae Sedum divergens Pacific stonecrop Yes High N Herb
Crassulaceae Sedum spathulifolium
spatula-leaf stonecrop, broadleaf stonecrop
Yes High N Herb
Selaginellaceae Selaginella wallacei Wallace's spikemoss Yes High N Herb
Page 31 of 38
Family Genus (USDA, NRCS standard)
Species (USDA, NRCS standard) Subtaxon Genus synonym
Species/ subspecies synonym
Common Name Vouchered
at UW Herbarium
Species ID Confidence
Native/ Introduced Lifeform
Asteraceae Senecio jacobaea Tansy ragwort Yes High I Herb
Asteraceae Senecio triangularis Arrow-leaved groundsel Yes High N Herb
Asteraceae Senecio vulgaris Common groundsel No High I Herb
Caryophyllaceae Silene parryi Parry's silene Yes High N Herb
Iridaceae Sisyrinchium angustifolium blue-eyed grass,
blue star, eye-bright
Yes High N Herb
Iridaceae Sisyrinchium idahoense Idaho blue-eyed grass No Good N Herb
Solanaceae Solanum dulcamara
Bittersweet nightshade,
climibing nightshade
Yes High I Vine
Asteraceae Solidago canadensis var. salebrosa Canada Goldenrod Yes High N Herb
Asteraceae Sonchus asper spiny sowthistle No Good I Herb
Rosaceae Sorbus aucuparia European mountain ash Yes High I Tree
Rosaceae Sorbus scopulina var. cascadensis
Cascade mountain ash Yes High N Tree
Rosaceae Sorbus scopulina var. scopulina Greene's mountain ash Yes High N Tree
Rosaceae Sorbus sitchensis var. grayi Sitka mountain-
ash, western mountain ash
Yes High N Shrub
Page 32 of 38
Family Genus (USDA, NRCS standard)
Species (USDA, NRCS standard) Subtaxon Genus synonym
Species/ subspecies synonym
Common Name Vouchered
at UW Herbarium
Species ID Confidence
Native/ Introduced Lifeform
Sparganiaceae Sparganium angustifolium narrowleaf bur-reed Yes High N Herb
Sparganiaceae Sparganium emersum simplestem bur-reed, European
bur-reed Yes High I Herb
Sparganiaceae Sparganium minimum small bur-reed Yes High N Herb Caryophyllaceae Spergularia rubra red sandspurry Yes High I Herb
Rosaceae Spiraea betulifolia var. lucida shinyleaf spirea Yes High N Shrub Rosaceae Spiraea betulifolia white spirea Yes High N Shrub
Rosaceae Spiraea douglasii var. menziesii Harkhack, Menzies' spirea Yes High N Shrub
Rosaceae Spiraea douglasii rose spirea Yes High N Shrub
Rosaceae Spiraea splendens var. splendes densiflora rose meadowsweet Yes High N Shrub
Rosaceae Spiraea x pyramidata (betulifolia x douglasii)
spirea Yes High N Shrub
Lamiaceae Stachys chamissonis var. cooleyae cooleyae Cooleys hedge-
nettle, great betony
Yes High N Herb
Lamiaceae Stachys mexicana great betony,
Mexican hedgenettle
Yes High N Herb
Lamiaceae Stachys rigida rigid betony, rigid hedge-nettle Yes High N Herb
Caryophyllaceae Stellaria borealis Sitka starwort, boreal starwort Yes High N Herb
Caryophyllaceae Stellaria calycantha northern starwort Yes High N Herb
Caryophyllaceae Stellaria crispa curled starwort Yes High N Herb
Page 33 of 38
Family Genus (USDA, NRCS standard)
Species (USDA, NRCS standard) Subtaxon Genus synonym
Species/ subspecies synonym
Common Name Vouchered
at UW Herbarium
Species ID Confidence
Native/ Introduced Lifeform
Caryophyllaceae Stellaria longipes longstalk starwort Yes High N Herb
Caryophyllaceae Stellaria media common chickweed Yes High I Herb
Liliaceae Stenanthium occidentale western featherbells Yes High N Herb
Liliaceae Streptopus amplexifolius var. amplexifolius
var. americanus Clasping twisted stalk Yes High N Herb
Liliaceae Streptopus amplexifolius Clasping twisted stalk Yes High N Herb
Liliaceae Streptopus lanceolatus var. roseus roseus Rosy twisted stalk Yes High N Herb
Potamogetonaceae Stuckenia pectinatus Potamogeton Sago pondweed No High N Herb
Caprifoliaceae Symphoricarpos albus Common Snowberry No Good N Shrub
Caprifoliaceae Symphoricarpos occidentalis Western snowberry Yes High N Shrub
Asteraceae Symphyotrichum foliaceum var. parryi Aster foliaceus leafy aster Yes High N Herb
Asteraceae Tanacetum vulgare Common tansy No High I Herb
Asteraceae Taraxacum officinale Common dandelion Yes High I Herb
Taxaceae Taxus brevifolia Western Yew, Pacific yew Yes High N Tree
Saxifragaceae Tellima grandiflora Fringecup Yes High N Herb
Ranunculaceae Thalictrum occidentale western
meadow-rue
Yes High N Herb
Page 34 of 38
Family Genus (USDA, NRCS standard)
Species (USDA, NRCS standard) Subtaxon Genus synonym
Species/ subspecies synonym
Common Name Vouchered
at UW Herbarium
Species ID Confidence
Native/ Introduced Lifeform
Cupressaceae Thuja plicata Western redcedar Yes High N Tree
Saxifragaceae Tiarella trifoliata var. trifoliata var. trifoliata
Foamflower, coolwort, threeleaf
foamflower
Yes High N Herb
Saxifragaceae Tiarella trifoliata var. unifoliata oneleaf foamflower Yes High N Herb
Liliaceae Tofieldia glutinosa sticky tofieldia Yes High N Herb
Saxifragaceae Tolmiea menziesii piggyback-plant, Youth-on-age Yes High N Herb
Poaceae Torreyochloa pallida var. pauciflora Puccinellia pauciflora pale false
mannagrass, weak alkaligrass
Yes High N Graminoid
Ranunculaceae Trautvetteria caroliniensis var. occidentalis
western bugbane Yes High N Herb
Ranunculaceae Trautvetteria caroliniensis Carolina bugbane Yes High N Herb
Cyperaceae Trichophorum cespitosum Scirpus caespitosus, cespitosus tufted bulrush Yes High N Graminoid
Primulaceae Trientalis borealis ssp. latifolia broadleaf starflower Yes High N Herb
Primulaceae Trientalis europaea ssp. arcitca arctica northern starflower Yes High N Herb
Fabaceae Trifolium campestre field clover No Good I Herb Fabaceae Trifolium dubium suckling clover Yes High I Herb Fabaceae Trifolium hybridum alsike clover Yes High I Herb
Fabaceae Trifolium repens white clover, Dutch clover Yes High I Herb
Liliaceae Trillium ovatum Western trillium Yes High N Herb
Page 35 of 38
Family Genus (USDA, NRCS standard)
Species (USDA, NRCS standard) Subtaxon Genus synonym
Species/ subspecies synonym
Common Name Vouchered
at UW Herbarium
Species ID Confidence
Native/ Introduced Lifeform
Poaceae Trisetum canescens tall trisetum No Good N Graminoid Poaceae Trisetum cernuum tall trisetum Yes High N Graminoid Pinaceae Tsuga heterophylla Western hemlock Yes High N Tree
Pinaceae Tsuga mertensiana Mountain hemlock No High N Tree
Typhaceae Typha angustifolia narrowleaf cattail Yes High N Herb
Typhaceae Typha latifolia common cattail, broadleaf cattail Yes High N Herb
Urticaceae Urtica dioica ssp. gracilis Stinging nettle Yes High N Herb
Lentibulariaceae Utricularia macrorhiza vulgaris common bladderwort Yes High N Herb
Ericaceae Vaccinium alaskaense Alaska blueberry Yes High N Shrub Ericaceae Vaccinium cespitosum caespitosum Dwarf blueberry Yes High N Shrub
Ericaceae Vaccinium deliciosum
blue-leaf huckleberry or
blueberry, Cascade bilberry
Yes High N Shrub
Ericaceae Vaccinium membranaceum
Black huckleberry, Big
huckleberry, thinleaf
huckleberry
Yes High N Shrub
Ericaceae Vaccinium ovalifolium Oval-leafed blueberry Yes High N Shrub
Ericaceae Vaccinium oxycoccos Bog cranberry, small cranberry Yes High N Shrub
Ericaceae Vaccinium parvifolium Red huckleberry Yes High N Shrub
Page 36 of 38
Family Genus (USDA, NRCS standard)
Species (USDA, NRCS standard) Subtaxon Genus synonym
Species/ subspecies synonym
Common Name Vouchered
at UW Herbarium
Species ID Confidence
Native/ Introduced Lifeform
Ericaceae Vaccinium scoparium grouseberry, whortleberry Yes High N Shrub
Poaceae Vahlodea atropurpurea Deschampsia mountain hairgrass Yes High N Graminoid
Valerianaceae Valeriana scouleri Scouler's valerian Yes High N Herb
Valerianaceae Valeriana sitchensis mountain
heliotrope, Sitka valerian
Yes High N Herb
Hydrocharitaceae Vallisneria americana American eelgrass No High n Herb
Liliaceae Veratrum californicum California false hellebore Yes High N Herb
Liliaceae Veratrum viride Indian hellebore Yes High N Herb Scrophulariaceae Verbascum thapsus common mullein No Good I Herb
Scrophulariaceae Veronica americana American brooklime Yes High N Herb
Scrophulariaceae Veronica anagallis-aquatica
water speedwell No Good N Herb
Scrophulariaceae Veronica arvensis corn speedwell Yes High I Herb
Scrophulariaceae Veronica chamaedrys germander speedwell Yes High I Herb
Scrophulariaceae Veronica cusickii Cusicks speedwell Yes High N Herb
Scrophulariaceae Veronica officinalis
common gypsyweed,
common speedwell, Pauls
betony
Yes High I Herb
Page 37 of 38
Family Genus (USDA, NRCS standard)
Species (USDA, NRCS standard) Subtaxon Genus synonym
Species/ subspecies synonym
Common Name Vouchered
at UW Herbarium
Species ID Confidence
Native/ Introduced Lifeform
Scrophulariaceae Veronica scutellata
marsh speedwell, grass-leaved speedwell,
skullcap speedwell
Yes High N Herb
Scrophulariaceae Veronica serpyllifolia ssp. serpyllifolia
thymeleaf speedwell Yes High I Herb
Scrophulariaceae Veronica serpyllifolia thymeleaf speedwell Yes High N Herb
Scrophulariaceae Veronica wormskjoldii American alpine speedwell Yes High N Herb
Caprifoliaceae Viburnum edule
moosewood viburnum, high-bush cranberry,
squashberry
Yes High N Shrub
Fabaceae Vicia americana ssp. americana
var truncata American vetch Yes High N Herb
Fabaceae Vicia sativa ssp. nigra var. angustifolia common vetch, tare Yes High I Herb
Fabaceae Vicia sativa garden vetch Yes High I Herb
Violaceae Viola adunca var. adunca Early blue violet,
hookedspur violet
Yes High N Herb
Violaceae Viola glabella stream violet, pioneer violet Yes High N Herb
Violaceae Viola macloskeyi ssp. macloskeyi
small white violet Yes High N Herb
Violaceae Viola palustris marsh violet Yes High N Herb
Page 38 of 38
Family Genus (USDA, NRCS standard)
Species (USDA, NRCS standard) Subtaxon Genus synonym
Species/ subspecies synonym
Common Name Vouchered
at UW Herbarium
Species ID Confidence
Native/ Introduced Lifeform
Violaceae Viola sempervirens trailing yellow
violet, evergreen violet
No HIgh N Herb
Poaceae Vulpia myuros Festuca annual fescue Yes High I Graminoid
Dryopteridaceae Woodsia scopulina Rocky Mountain woodsia Yes High N Herb
Liliaceae Xerophyllum tenax Bear grass Yes High N Herb
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