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

(577 weeds)

A
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1. absinthe
2. Adam and Eve orchid
3. air yam
4. Allegheny monkeyflower
5. alligatorweed
6. American barberry
7. American basswood
8. American beautyberry
9. American beech
10. American black elderberry
11. American burnweed
12. American climbing fern
13. American false pennyroyal
14. American hazelnut
15. American plum
16. American pokeweed
17. American speedwell
18. American sycamore
19. American water-willow
20. American white waterlily
21. Amur honeysuckle
22. annual sowthistle
23. annual trampweed
24. apple of Peru
25. arrowleaf sida
26. ashy sunflower
27. Asian ponysfoot
28. Asiatic dayflower
29. Asiatic tearthumb
30. Australian water-clover
31. autumn olive
B
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1. balloon plant
2. balsampear
3. bearded beggarticks
4. beefsteakplant
5. biennial beeblossom
6. big chickweed
7. bigpod sesbania
8. bird's-foot trefoil
9. bishop's weed
10. bitter dock
11. bitternut hickory
12. bittersweet nightshade
13. black bugbane
14. black cherry
15. black highbush blueberry
16. black huckleberry
17. black locust
18. black medic
19. black nightshade
20. black raspberry
21. black willow
22. blackeyed Susan
23. blackgum
24. blackhaw
25. bladder campion
26. blindeyes
27. blue huckleberry
28. blue mistflower
29. blue waxweed
30. bluejacket
31. Boston swordfern
32. boxelder
33. brambles
34. Brazilian watermeal
35. Brazilian waterweed
36. brittle waternymph
37. broadleaf helleborine
38. broadleaf ironweed
39. broadleaf pondweed
40. brown mustard
41. browneyed Susan
42. brownray knapweed
43. buffalo nut
44. buffalobur
45. bull thistle
46. burcucumber
47. burningbush
48. bursting-heart
49. butter and eggs
50. butterfly weed
51. butterweed
C
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1. Caley pea
2. camphor pluchea
3. Canada goldenrod
4. Canada lettuce
5. Canada thistle
6. Canada toadflax
7. Canadian blacksnakeroot
8. Canadian clearweed
9. Canadian lousewort
10. cardoon
11. Carolina desert-chicory
12. Carolina elephantsfoot
13. Carolina geranium
14. Carolina mosquitofern
15. Carolina ponysfoot
16. castor aralia
17. catclawvine
18. catnip
19. chamber bitter
20. chameleon plant
21. chicory
22. Chinaberrytree
23. Chinese chestnut
24. Chinese pear
25. Chinese privet
26. Chinese sweetshrub
27. Chinese tallow
28. Chinese wisteria
29. Chinese yam
30. clammy groundcherry
31. clammy locust
32. climbing dayflower
33. coastal sweetpepperbush
34. cockspur hawthorn
35. coltsfoot
36. common balm
37. common blue violet
38. common bugle
39. common burdock
40. common buttonbush
41. common chickweed
42. common cinquefoil
43. common cocklebur
44. common cowparsnip
45. common dandelion
46. common duckmeat
47. common duckweed
48. common evening primrose
49. common groundsel
50. common hop
51. common mallow
52. common milkweed
53. common mouse-ear chickweed
54. common mullein
55. common nipplewort
56. common periwinkle
57. common persimmon
58. common plantain
59. common ragweed
60. common selfheal
61. common sheep sorrel
62. common speedwell
63. common St. Johnswort
64. common sunflower
65. common sweetleaf
66. common tansy
67. common threeseed mercury
68. common vetch
69. common viper's bugloss
70. common yarrow
71. common yellow oxalis
72. coon's tail
73. coralberry
74. corn chamomile
75. corn gromwell
76. corn speedwell
77. corn spurry
78. cow pea
79. crape myrtle
80. creeping lespedeza
81. creeping primrose
82. creeping strawberry bush
83. creeping woodsorrel
84. creeping yellowcress
85. crosswort
86. crownvetch
87. cucumber-tree
88. curly dock
89. curly pondweed
90. curlytop knotweed
91. cursed buttercup
92. cutleaf evening primrose
93. cutleaf geranium
94. cypress spurge
95. cypressvine
D
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1. dames rocket
2. deerberry
3. Deptford pink
4. devil in the bush
5. devil's beggartick
6. devil's grandmother
7. devil's walkingstick
8. disc mayweed
9. dogfennel
10. dotted smartweed
11. dovefoot geranium
12. doveweed
13. duckweed
E
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1. early yellowrocket
2. eastern baccharis
3. eastern black nightshade
4. eastern cottonwood
5. eastern daisy fleabane
6. eastern poison ivy
7. eastern redbud
8. eastern redcedar
9. edible fig
10. English ivy
11. English yew
12. Eurasian watermilfoil
13. European cranberrybush
14. European field pansy
15. eyebane
F
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1. fall phlox
2. false daisy
3. fan clubmoss
4. Fernald's yellowcress
5. fiddle dock
6. field bindweed
7. field horsetail
8. field madder
9. field mustard
10. field pansy
11. field pennycress
12. field pepperweed
13. field pumpkin
14. field pussytoes
15. floating marshpennywort
16. floating primrose-willow
17. Florida beggarweed
18. flower of an hour
19. flowering quince
20. fragrant sumac
21. frost grape
22. Fuller's teasel
G
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1. gallant soldier
2. garden asparagus
3. garden cornflower
4. garden lettuce
5. garden rhubarb
6. garden valerian
7. garden yellowrocket
8. garlic mustard
9. germander speedwell
10. giant goldenrod
11. giant ironweed
12. glossy buckthorn
13. golden chain tree
14. golden kiwi
15. golden ragwort
16. grass-like starwort
17. great blue lobelia
18. great ragweed
19. green ash
20. green carpetweed
21. green field speedwell
22. green hawthorn
23. ground ivy
24. groundnut
25. Guadeloupe cucumber
H
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1. hairy angelica
2. hairy bittercress
3. hairy cat's ear
4. hairy crabweed
5. hairy fleabane
6. hairy vetch
7. hardy orange
8. hare's ear
9. harlequin glorybower
10. harvestlice
11. hazel alder
12. heavenly bamboo
13. hedge bindweed
14. hedgehyssop
15. hedgemustard
16. hemp dogbane
17. henbit deadnettle
18. hog peanut
19. hogwort
20. honeylocust
21. honeyvine milkweed
22. hophornbeam copperleaf
23. horned pondweed
24. horsenettle
25. horseweed
26. humped bladderwort
27. hyssopleaf thoroughwort
I
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1. incense cedar
2. Indian strawberry
3. ivyleaf morningglory
4. ivyleaf speedwell
J
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1. jagged chickweed
2. Japanese barberry
3. Japanese clover
4. Japanese flowering cherry
5. Japanese holly
6. Japanese honeysuckle
7. Japanese hop
8. Japanese knotweed
9. Japanese maple
10. Japanese spindletree
11. Japanese spirea
12. Jerusalem artichoke
13. jetbead
14. jewelweed
15. jimsonweed
K
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1. kidneyleaf mudplantain
2. kiss me over the garden gate
3. knawel
4. kochia
5. kudzu
L
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1. lambsquarters
2. lanceleaf ragweed
3. large hopclover
4. largebracted plantain
5. largepod pinweed
6. lateflowering thoroughwort
7. lawn burweed
8. lawn marshpennywort
9. lawndaisy
10. leafy pondweed
11. lemon beebalm
12. lesser calamint
13. lesser swinecress
14. little floatingheart
15. little hogweed
16. littleleaf buttercup
17. littlepod false flax
18. live oak
19. long-stalked phyllanthus
20. longleaf groundcherry
21. longleaf pondweed
22. low hopclover
23. lyreleaf sage
M
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1. maidenstears
2. man of the earth
3. manyflower marshpennywort
4. maroon Carolina milkvine
5. Maryland goldenaster
6. Maryland meadowbeauty
7. mat amaranth
8. matrimony vine
9. Maule's quince
10. mayapple
11. mayweed chamomile
12. meadow hawkweed
13. Mexican fireplant
14. Mexican tea
15. mockernut hickory
16. moleplant
17. Morrow's honeysuckle
18. moth mullein
19. mountain fetterbush
20. mountain laurel
21. mouseear cress
22. muck sunflower
23. mugwort
24. multiflora rose
25. musk thistle
N
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1. narrowleaf hawksbeard
2. narrowleaf mountainmint
3. narrowleaf pinweed
4. narrowleaf plantain
5. navel cornsalad
6. nettleleaf noseburn
7. northern bog violet
8. northern catalpa
9. northern dewberry
10. northern jointvetch
11. northern red oak
12. Norwegian cinquefoil
O
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1. orange hawkweed
2. oregano
3. Oriental bittersweet
4. Oriental lady's thumb
5. ornamental jewelweed
6. Osage orange
7. oxeye daisy
P
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1. Palmer amaranth
2. palmleaf morningglory
3. panicledleaf ticktrefoil
4. paper mulberry
5. parrot feather watermilfoil
6. parsley-piert
7. partridge pea
8. pawpaw
9. Pennsylvania smartweed
10. peppermint
11. perennial pea
12. perennial sowthistle
13. perplexed ticktrefoil
14. Persian speedwell
15. petty spurge
16. Philadelphia fleabane
17. Piedmont bedstraw
18. pignut hickory
19. pink woodsorrel
20. plantain-leaved pussytoes
21. plume poppy
22. poison hemlock
23. pomegranate
24. poorjoe
25. povertyweed
26. Powell's amaranth
27. prairie broomweed
28. prairie fleabane
29. prairie tea
30. prickly lettuce
31. prickly Russian thistle
32. prickly sida
33. princesstree
34. prostrate knotweed
35. prostrate pigweed
36. purple ammannia
37. purple deadnettle
38. purple loosestrife
39. purple passionflower
40. purslane speedwell
Q
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1. Queen Anne's lace
2. quince
R
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1. rabbit-tobacco
2. rabbitfoot clover
3. ram's horn
4. ramtilla
5. rape
6. rare clubmoss
7. red clover
8. red maple
9. red mulberry
10. red sandspurry
11. red stemmed parrots feather
12. redroot amaranth
13. redstar
14. redstem stork's bill
15. rice button aster
16. roadside pennycress
17. roughfruit amaranth
18. roundleaf greenbriar
19. rugosa rose
20. rusty blackhaw
S
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1. sassafras
2. saucer magnolia
3. sawtooth blackberry
4. sawtooth oak
5. scarlet pimpernel
6. scentless false mayweed
7. Scotch broom
8. sensitive fern
9. sensitive partridge pea
10. sericea lespedeza
11. shaggy soldier
12. sharpleaf cancerwort
13. shepherd's purse
14. shining bedstraw
15. showy rattlebox
16. Siberian ligularia
17. sicklepod
18. silktree
19. silky dogwood
20. silverleaf nightshade
21. silvery everlasting
22. slender amaranth
23. slender parsley piert
24. small geranium
25. small hopclover
26. small pondweed
27. smallflower buttercup
28. smallflower morningglory
29. smallspike false nettle
30. smooth aster
31. smooth bedstraw
32. smooth hawksbeard
33. smooth pigweed
34. smooth rattlebox
35. smooth sumac
36. sneezeweed
37. soapwort
38. sourwood
39. southern waternymph
40. soybean
41. Spanish needles
42. spiny amaranth
43. spiny plumeless thistle
44. spiny sowthistle
45. spoonleaf purple everlasting
46. spotted knapweed
47. spotted ladysthumb
48. spotted sandmat
49. spotted St. Johnswort
50. spotted water hemlock
51. spring avens
52. spring draba
53. spurred anoda
54. squirrel corn
55. St. Andrew's cross
56. St. Anthony's turnip
57. stickbush
58. stickweed
59. sticky chickweed
60. sticky ragwort
61. stickywilly
62. stiff dogwood
63. stinging nettle
64. stringy stonecrop
65. striped prince's pine
66. sugar maple
67. sulphur cinquefoil
68. sun spurge
69. swamp bay
70. swamp smartweed
71. swamp tupelo
72. swamp verbena
73. sweet autumn virginsbower
74. sweet bay
75. sweet clover
76. sweet fennel
77. sweet sagewort
78. sweetgum
79. sweetscented bedstraw
T
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1. tall globethistle
2. tall morningglory
3. Tatarian honeysuckle
4. threadstalk speedwell
5. throughwort pennycress
6. Thunbergs meadowsweet
7. thymeleaf speedwell
8. toothed spurge
9. trailing pearlwort
10. tree-of-a-thousand-stars
11. tree-of-heaven
12. trumpet creeper
13. trumpetweed
14. tuliptree
15. twoheaded water-starwort
16. twoleaf watermilfoil
V
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1. velvetleaf
2. vente conmigo
3. violet orychophragmus
4. Virginia buttonweed
5. Virginia creeper
6. Virginia glasswort
7. Virginia mountainmint
8. Virginia pepperweed
9. Virginia strawberry
10. Virginia sweetspire
11. Virginia threeseed mercury
W
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1. watercress
2. watershield
3. waterthread pondweed
4. waterthyme
5. wax myrtle
6. western brackenfern
7. western marsh cudweed
8. western salsify
9. white ash
10. white clover
11. white heath aster
12. white mulberry
13. white panicle aster
14. white snakeroot
15. white vervain
16. whitestar
17. whorled yellow loosestrife
18. wild basil
19. wild blue phlox
20. wild buckwheat
21. wild four-o'clock
22. wild grapes
23. wild mustard
24. wild parsnip
25. wild radish
26. wild sarsaparilla
27. wine raspberry
28. winged sumac
29. wingstem
30. winter-flowering cherry
31. wintergreen barberry
32. woodland bittercress
33. woodland lettuce
34. woolly burdock
Y
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1. yaupon
2. yellow archangel
3. yellow floatingheart
4. yellow passionflower
5. yellow spring bedstraw