Weed Identification

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Growth Habit

Thorns or Spines

Approximate Flower Diameter

Dominant Flower Color

Flower Symmetry

Leaf Hairs

Leaf Shape

Leaf Arrangement

Leaf Margin

Leaf Structure

Leaf Stalk

Stem Hairs

Stem Cross Section

Milky Sap

Root Structure

Life Cycle

Ochrea

Common name

Scientific name

(150 weeds)

A
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1. absinthe
2. American bur-reed
3. American burnweed
4. American pokeweed
5. American speedwell
6. annual sowthistle
7. arrowleaf sida
B
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1. big chickweed
2. bitter dock
3. bladder campion
4. brown mustard
5. brownray knapweed
6. bulbous woodrush
7. bull thistle
C
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1. camphor pluchea
2. Canada goldenrod
3. Canada lettuce
4. Canada thistle
5. Carolina elephantsfoot
6. chamber bitter
7. chicory
8. clammy groundcherry
9. common burdock
10. common cocklebur
11. common evening primrose
12. common groundsel
13. common mallow
14. common milkweed
15. common mouse-ear chickweed
16. common mullein
17. common selfheal
18. common sheep sorrel
19. common speedwell
20. common sunflower
21. common threeseed mercury
22. common vetch
23. common viper's bugloss
24. corn gromwell
25. corn speedwell
26. creeping primrose
27. crosswort
28. curlytop knotweed
29. cursed buttercup
30. cutleaf geranium
D
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1. Deptford pink
2. devil's beggartick
E
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1. early yellowrocket
2. eastern black nightshade
3. eastern daisy fleabane
F
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1. false daisy
2. fiddle dock
3. field horsetail
4. field mustard
5. field pansy
6. field pennycress
7. field pepperweed
8. Florida beggarweed
G
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1. garden cornflower
2. garden lettuce
3. garden yellowrocket
4. germander speedwell
5. giant goldenrod
6. giant ironweed
7. great ragweed
8. green carpetweed
H
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1. hairy fleabane
2. hemp dogbane
3. hophornbeam copperleaf
4. horsenettle
5. horseweed
6. hyssopleaf thoroughwort
I
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1. ivyleaf speedwell
J
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1. jagged chickweed
2. Japanese knotweed
3. Jerusalem artichoke
4. jewelweed
5. jimsonweed
K
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1. kochia
L
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1. lanceleaf ragweed
2. lateflowering thoroughwort
3. lawndaisy
4. lemon beebalm
5. longleaf groundcherry
M
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1. manyflower marshpennywort
2. mayweed chamomile
3. Mexican tea
4. moth mullein
5. mouseear cress
6. musk thistle
N
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1. narrowleaf hawksbeard
O
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1. orange hawkweed
2. oxeye daisy
P
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1. Palmer amaranth
2. Pennsylvania smartweed
3. perennial pea
4. perennial sowthistle
5. Persian speedwell
6. Philadelphia fleabane
7. plantain-leaved pussytoes
8. poorjoe
9. prairie fleabane
10. prickly lettuce
11. prickly Russian thistle
12. prickly sida
13. purple ammannia
14. purple loosestrife
15. purslane speedwell
R
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1. rape
2. redroot amaranth
3. roadside pennycress
4. roughfruit amaranth
S
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1. shepherd's purse
2. showy rattlebox
3. sleepydick
4. slender amaranth
5. smallflower buttercup
6. smallflower morningglory
7. smooth hawksbeard
8. smooth pigweed
9. Spanish needles
10. spiny amaranth
11. spiny plumeless thistle
12. spiny sowthistle
13. spoonleaf purple everlasting
14. spotted knapweed
15. spotted ladysthumb
16. spotted St. Johnswort
17. spring draba
18. spurred anoda
19. St. Anthony's turnip
20. stickweed
21. stinging nettle
22. swamp smartweed
23. swamp verbena
24. sweet fennel
T
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1. tall globethistle
2. threadstalk speedwell
3. thymeleaf speedwell
4. toothed spurge
V
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1. velvetleaf
2. vente conmigo
3. Virginia pepperweed
4. Virginia threeseed mercury
W
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1. western salsify
2. white heath aster
3. white snakeroot
4. wild basil
5. wild mustard
6. wingstem
7. woolly burdock