Weed ID

Question 1

Answer 1

Annual Bluegrass

Poa annua

Question 2

Answer 2

barnyardgrass

Echinochloa crus-galli

Question 3

Answer 3

Black Nightshade

Solanum nigrum

Question 4

Answer 4

bristly foxtail

Setaria verticillata

Question 5

Answer 5

velvet leaf

Abutilon theophrasti

Question 6

Answer 6

hophornbeam copperleaf

Acalypha orstryfolia

Question 7

Answer 7

jointed goatgrass

Aegilops cylindrica

Question 8

Answer 8

prostrate pigweed

Amaranthus blitoides

Question 9

Answer 9

Palmer amaranth

Amaranthus palmeri

Question 10

Answer 10

redroot pigweed

Amaranthus retroflexus

Question 11

Answer 11

common waterhemp

Amaranthus rudis

Question 12

Answer 12

common ragweed

Ambrosia artemisiifolia

Question 13

Answer 13

giant ragweed

Ambrosia trifida

Question 14

Answer 14

hemp dogbane

Apocynum cannabinum

Question 15

Answer 15

common milkweed

Asclepias syriaca

Question 16

Answer 16

wild oat

Avena fatua

Question 17

Answer 17

yellow rocket

Barbarea vulgaris

Question 18

Answer 18

Japanese brome

Bromus japonicus

Question 19

Answer 19

Cheat

Bromus secalinus

Question 20

Answer 20

downy brome

Bromus tectorum

Question 21

Answer 21

shepherd’s-purse

Capsella bursa-pastoris

Question 22

Answer 22

musk thistle

Carduus nutans

Question 23

Answer 23

longspine sandbur

Cenchrus longispinus

Question 24

Answer 24

common lambsquarters

Chenopodium album

Question 25

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Answer 25

bull thistle Cirsium vulgare

Question 26

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Answer 26

poison hemlock Conium maculatum

Question 27

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Answer 27

field bindweed Convolvulus arvensis

Question 28

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Answer 28

horseweed Conyza canadensis

Question 29

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Answer 29

yellow nutsedge Cyperus esculentus

Question 30

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Answer 30

jimsonweed Datura stramonium

Question 31

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Answer 31

flixweed Descurainia sophia

Question 32

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Answer 32

large crabgrass Digitaria sanguinalis

Question 33

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Answer 33

Canada wildrye Elymus canadensis

Question 34

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Answer 34

quackgrass Elymus repens

Question 35

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Answer 35

field horsetail Equisetum arvense

Question 36

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Answer 36

woolly cupgrass Eriochloa villosa

Question 37

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Answer 37

hairy galinsoga Galinsoga ciliata

Question 38

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Answer 38

common sunflower Helianthus anuus

Question 39

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Answer 39

ivyleaf morningglory Ipomoea hederacea

Question 40

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Answer 40

pitted morningglory Ipomoea lacunosa

Question 41

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Answer 41

tall morningglory Ipomoea purpurea

Question 42

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Answer 42

kochia Kochia scoparia

Question 43

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Answer 43

prickly lettuce Lactuca serriola

Question 44

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Answer 44

henbit Lamium amplexicaule

Question 45

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Answer 45

common mallow Malva neglecta

Question 46

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Answer 46

prairie evening-primrose Oenothera albicaulis

Question 47

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Answer 47

fall panicum Panicum dichotomiflorum

Question 48

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Answer 48

common pokeweed Phytolacca americana

Question 49

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Answer 49

buckhorn plantain Plantago lanceolata

Question 50

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Answer 50

Wild Buckwheat Polygonum convolvulus

Question 51

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Answer 51

Pennsylvania smartweed Polygonum pensylvanicum

Question 52

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Answer 52

prostrate knotweed Polygonum aviculare

Question 53

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Answer 53

common purslane Portulaca oleracea

Question 54

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Answer 54

devil's claw Proboscidea louisianica

Question 55

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Answer 55

curly dock Rumex crispus

Question 56

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Answer 56

Russian thistle Salsola tragus

Question 57

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Answer 57

giant foxtail Setaria faberi

Question 58

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Answer 58

yellow foxtail Setaria pumila

Question 59

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Answer 59

green foxtail Setaria viridis

Question 60

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Answer 60

wild mustard Sinapis arvensis

Question 61

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Answer 61

eastern black nightshade Solanum ptycanthum

Question 62

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Answer 62

buffalobur Solanum rostratum

Question 63

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Answer 63

shattercane Sorghum bicolor

Question 64

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Answer 64

johnsongrass Sorghum halepense

Question 65

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Answer 65

common chickweed Stellaria media

Question 66

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Answer 66

dandelion Taraxacum officinale

Question 67

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Answer 67

field pennycress Thlaspi arvense

Question 68

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Answer 68

puncturevine Tribulus terrestris

Question 69

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Answer 69

common cattail Typha latifolia

Question 70

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Answer 70

broadleaf signalgrass Urochloa platyphylla

Question 71

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Answer 71

common cocklebur Xanthium strumarium

Question 72

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