Botany Standard 4:

Field Identification

Week 9Ms. Darlak

Warm-up 05/16 List all the things you can use to identify a

plant.

Agenda 05/16 Intro to Standard 4 Dichotomous Keys Greenhouse Check Transplants

Standard 4: Field Identification

Standard 5: Field Identification

Industry-based knowledge and skillsPlant 01.01.02.a. Describe the morphological characteristics used to identify plants.Plant 01.01.02.b. Identify important plants by common names.Plant 01.01.02.c. Identify important plants by scientific names.

◘ Use a dichotomous keys to identify plants. ◘ Complete all field notebook assignments with recordings of

plants on school grounds and on field trips.◘ Record observations in a scientific format in their field

notebooks.◘ Identify 15 plants using a dichotomous key (with 75%

proficiency).

Exceeds(90-100%)

Meets (75-90%)

◘ The student is still developing proficiency in the above proficiency levels.

Developing(0-74%)

Requirements Field Notebook Identification of 6 plants with use of a

dichotomous key Extra Credit Voucher Collection

Dichotomous Keys Dichotomous means

"divided in two parts". Each step has two

choices; what you choose leads you to another question until the item is identified.

Based on physical characteristics.

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Dichotomous Key Activity DARLAK4SCIENCE Botany Standard 4 Mystery Tree # Fill out Tree Information Practice Keying out all the other trees

Warm-up 05/26

Using the Key Provided….

Key out this plant to genus and species.

1. Leaves not spines 2. Lvs Opposite 3. Lvs simple 5. Lvs PALMATELY lobed. Acer …….GO TO p 202.

1. Lvs less than 5” 2. Lobes 5-9, mostly 7, fanlike. Acer circinatum

Warm-up 05/17What where the major tree characteristics that you used to identify your tree?

Broadleaves Simple or Compound

Alternate or Opposite Lobed or unlobed Toothed or not

toothed Paper bark or not

Needle-like Leaves Single, flat or clustered Clusters of 2 or clusters

of 5 Needles less than 2

inches long Needles greater than 2

inches long

Agenda 05/17

Make a Dichotomous Key Key to PNW Broadleaved Trees and

Shrubs

GROUP TASK Each group gets ONE paper bag Make a Dichotomous key for ALL the items

in the bag. Follow the Procedures.

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PROCEDURES1. First make and answer key.

Write the names of your partners and bag # on your ANSWER key.

Assign a number to each object and make up a new name “scientific name” for each object. Example: #1--------Mollusca minuta (small shell) May want to trace an outline of the object

2. Make a dichotomous key for all objects in your bag.

Key Format Example1. A. Item is round………………………go to 2 B. Item is not round…………………….go to 3

Better1. A. Item flat on 2 sides…………..…go to 2 B. Item is not flat on 2 sides…….go to 52. A. Item is > than 4 inches in diameter….4 B. Item is < than 4 inches in diameter… 33. A. Item has “Frozen Four” on one flat side and

“Bauer” on the other side of flat side………….Hockey discus.

B. Does not have any writing on it….go to 6

Warm-up 05/18 Use the Key Provided to Key out a leaf. Write the Leaf # and Species on your

sheet.

Agenda 05/18 Greenhouse Finish and Grade each others Dichotomous

Keys Intro to PNW Broadleaved Trees and

Shrubs Use the key.

Grading the Keys Switch bags and keys with another

group. Use their key to identify the items. Write the scientific name next to the

object name. Give them a grade from 1-10 on their

descriptions and accuracy of the items.

Key Vocabulary < less than > greater than Bilateral Symmetry Radial Symmetry

Key to PNW Broadleaved Trees and Shrubs

1. Sharp Spines, few leaves, “normal” blades.

Key to PNW Broadleaved Trees and Shrubs Leaves Opposite Leaves Alternate

Key to PNW Broadleaved Trees and Shrubs (BLUE) Leaves Compound Leaves Simple

Key to PNW Broadleaved Trees and Shrubs (BLUE)

Palmately Lobed Pinnately Lobed

Warm-up 05/19Key out the following shrub.Entire Twigs Armed, Stems Round, Prickles exfoliate with bark

Answer 1. Normal Blade 2. Lvs. Alternate 16. Lvs Compound 68. Twigs armed 69. Entire twig/stem armed 70. Leaflets lg, 1.5-3.5” usually 3-5

leaflets Rubus spp p. 184 1. Lvs compound, stems armed 2. Stems round in x-section 4. Prickles exfoliate with bark Rubus spectabilis (Salmon Berry)

Agenda 05/19 Key Practice Together Pass Back

Germination Lab (Test grade) can resubmit with first draft to improve grade.

Draft Landscape Design (Standard) Final Draft Due Tues 05/24

Greenhouse Check Transplants Key one plant (Field Notebook Assignment #1)

Warm-up 05/20

Using the Key Provided…. What tree does this branch belong to?Lvs: < 1.5”, spirally arranged, not on woody

pegs

Green Key

1.Leaves NOT like above, linear, spirally arranged.

7. Needles individual 10. Needles evergreen 11. Needles may be single 13. Leaves NOT ternate, linear 14. Leaves < 1.5” long, not sharp 16. Needles leave distinct leaf scar…..

Pseudotsuga

Agenda 05/20 Reminders

Germination Lab (Test grade) can resubmit with first draft to improve grade.

Draft Landscape Design (Standard) Final Draft Due Tues 05/24

Greenhouse Check Transplants

Work Day Library Lab C