Virginia Tech logo VT Logo
College of Agriculture and Life Sciences
Start Over

Plant type

Broadleaf
  • Broadleaf
  • Grass or grass like
  • Other
If you find errors in this application, please contact Weed ID Developers.

Growth habit

upright and nonwoody
prostrate and nonwoody
vine
woody bush or tree
I do not know

Leaf structure

simple
trifoliate
pinnate
palmate
I do not know

Leaf shape

round
heart
needle
lance
oval
spatulate
triangle
I do not know

Leaf arrangement

I do not know

alternate
opposite
whorled
rosette
leaves not present
I do not know

Leaf margin

entire
lobed
serrated
wavy
I do not know

Leaf stalk

shorter than leaf

none
shorter than leaf
longer than leaf
I do not know

Leaf hairs

has hairs
no hairs
I do not know

Stem cross section

round or oval
square or multi-edged
I do not know

Stem hairs

has hairs
no hairs
I do not know

Thorns or spines

Present
Not Present
I do not know

Ochrea

I do not know

Present
Not Present
I do not know

Milky sap

Present
Not Present
I do not know

Dominant flower color

I do not know

white
yellow
blue
purple
red
orange
pink
green
I do not know

Flower symmetry

radial symetery
disymetry
bilateral symetry
not symmetrical
I do not know

Flower diameter

pencil
dime
nickle
quarter
half dollar
larger
I do not know

Lifecycle

summer annual

winter annual
summer annual
biennial
perennial
I do not know

Root structure

fibrous
taproot
rhizomes present
stolons present
bulb/corm/enlarged stem/nutlet
I do not know

Common name

(62 weeds)
American burnweed
apple of Peru
arrowleaf sida
Asiatic tearthumb
bearded beggarticks
beefsteakplant
bigpod sesbania
black medic
burcucumber
butterweed
common cocklebur
common mullein
common ragweed
common sunflower
common threeseed mercury
common vetch
corn chamomile
curlytop knotweed
devil's beggartick
eastern black nightshade
eastern daisy fleabane
field pansy
Florida beggarweed
flower of an hour
great ragweed
green carpetweed
green field speedwell
hairy vetch
hog peanut
hophornbeam copperleaf
ivyleaf morning-glory
Japanese clover
jewelweed
jimsonweed
lambsquarters
mat amaranth
mayweed chamomile
northern jointvetch
Oriental lady's thumb
Pennsylvania smartweed
prairie fleabane
prairie tea
prickly sida
prostrate knotweed
prostrate pigweed
redstar
roughfruit amaranth
sensitive partridge pea
showy rattlebox
sicklepod
slender amaranth
smooth pigweed
spiny amaranth
spotted ladysthumb
spurred anoda
tall morning-glory
toothed spurge
velvetleaf
vente conmigo
Virginia threeseed mercury
whitestar
wild buckwheat

Scientific Name

(62 weeds)
Abutilon theophrasti
Acalypha ostryifolia
Acalypha rhomboidea
Acalypha virginica
Aeschynomene virginica
Amaranthus albus
Amaranthus blitoides
Amaranthus hybridus
Amaranthus spinosus
Amaranthus tuberculatus
Amaranthus viridis
Ambrosia artemisiifolia
Ambrosia trifida
Amphicarpa bracteata
Anoda cristata
Anthemis arvensis
Anthemis cotula
Bidens aristosa
Bidens frondosa
Chamaecrista nictitans ssp. nictitans var. nictitans
Chenopodium album
Crotalaria spectabilis
Croton glandulosus var. septentrionalis
Croton monanthogynus
Datura stramonium
Desmodium tortuosum
Erechtites hieracifolia
Erigeron annuus
Erigeron strigosus
Euphorbia dentata
Helianthus annuus
Hibiscus trionum
Impatiens capensis
Ipomoea coccinea
Ipomoea hederacea
Ipomoea lacunosa
Ipomoea purpurea
Kummerowia striata
Medicago lupulina
Mollugo verticillata
Nicandra physalodes
Packera glabella
Perilla frutescens
Polygonum aviculare
Polygonum caespitosum
Polygonum convolvulus
Polygonum lapathifolium
Polygonum pensylvanicum
Polygonum perfoliatum
Polygonum persicaria
Senna obtusifolia
Sesbania herbacea
Sicyos angulatus
Sida rhombifolia
Sida spinosa
Solanum ptycanthum
Verbascum thapsus
Veronica agrestis
Vicia sativa
Vicia villosa
Viola bicolor
Xanthium strumarium

Image of Virginia Cooperative Extension logo