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

(172 weeds)

A
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1. absinthe
2. air yam
3. alligatorweed
4. American barberry
5. American basswood
6. American beech
7. American bur-reed
8. American burnweed
9. American pokeweed
10. American speedwell
11. American sycamore
12. annual sowthistle
13. apple of Peru
14. Asiatic dayflower
15. Asiatic tearthumb
16. Australian water-clover
17. autumn olive
B
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1. bigpod sesbania
2. bishop's weed
3. bitter dock
4. bittersweet nightshade
5. black willow
6. blackeyed Susan
7. blackgum
8. boxelder
9. brown mustard
10. browneyed Susan
11. butterweed
C
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1. Caley pea
2. Canada lettuce
3. Canada thistle
4. Canada toadflax
5. Carolina ponysfoot
6. chamber bitter
7. Chinese wisteria
8. Chinese yam
9. climbing dayflower
10. coltsfoot
11. common blue violet
12. common cinquefoil
13. common dandelion
14. common groundsel
15. common periwinkle
16. common persimmon
17. common selfheal
18. common sheep sorrel
19. common St. Johnswort
20. common yarrow
21. coon's tail
22. cow pea
23. creeping lespedeza
24. creeping primrose
25. crownvetch
26. curly dock
27. cursed buttercup
28. cypress spurge
29. cypressvine
D
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1. Deptford pink
2. devil's beggartick
3. devil's walkingstick
4. disc mayweed
5. dogfennel
E
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1. early yellowrocket
2. eastern black nightshade
3. eastern cottonwood
4. eastern poison ivy
5. eastern redbud
6. eastern redcedar
7. English ivy
8. European field pansy
F
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1. fall phlox
2. fiddle dock
3. field horsetail
4. field mustard
5. field pansy
6. field pennycress
7. fragrant sumac
G
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1. garden lettuce
2. garden yellowrocket
3. giant goldenrod
4. giant ironweed
5. great blue lobelia
6. green ash
7. green carpetweed
H
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1. hairy angelica
2. hairy vetch
3. hardy orange
4. heavenly bamboo
5. hedge bindweed
6. hemp dogbane
7. honeylocust
8. honeyvine milkweed
9. hyssopleaf thoroughwort
J
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1. jagged chickweed
2. Japanese barberry
3. Japanese knotweed
4. jewelweed
5. jimsonweed
L
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1. large hopclover
2. lawn burweed
3. little hogweed
4. littleleaf buttercup
5. longleaf groundcherry
M
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1. man of the earth
2. manyflower marshpennywort
3. mayapple
4. mayweed chamomile
5. moth mullein
N
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1. northern red oak
O
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1. Oriental bittersweet
2. oxeye daisy
P
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1. Palmer amaranth
2. palmleaf morningglory
3. panicledleaf ticktrefoil
4. perennial pea
5. perennial sowthistle
6. poison hemlock
7. prickly Russian thistle
8. princesstree
9. prostrate pigweed
10. purple ammannia
11. purple loosestrife
12. purslane speedwell
Q
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1. Queen Anne's lace
R
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1. rape
2. red maple
3. redstar
4. roughfruit amaranth
5. roundleaf greenbriar
S
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1. sassafras
2. sensitive partridge pea
3. shepherd's purse
4. showy rattlebox
5. sicklepod
6. silktree
7. silverleaf nightshade
8. sleepydick
9. slender amaranth
10. smooth sumac
11. Spanish needles
12. spiny amaranth
13. spiny plumeless thistle
14. spiny sowthistle
15. spotted St. Johnswort
16. spotted water hemlock
17. starch grape hyacinth
18. stickweed
19. sugar maple
20. swamp smartweed
21. swamp tupelo
22. sweet clover
23. sweet fennel
24. sweet sagewort
25. sweetgum
T
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1. Tatarian honeysuckle
2. thymeleaf speedwell
3. tree-of-heaven
4. trumpet creeper
V
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1. Virginia creeper
W
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1. western brackenfern
2. western salsify
3. white ash
4. white clover
5. white mulberry
6. white snakeroot
7. whitestar
8. wild blue phlox
9. wild grapes
10. wild radish
11. wild sarsaparilla
12. wingstem
Y
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1. yellow passionflower