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

I do not know

simple
trifoliate
pinnate
palmate
I do not know

Leaf shape

round
heart
needle
lance
oval
spatulate
triangle
I do not know

Leaf arrangement

alternate
opposite
whorled
rosette
leaves not present
I do not know

Leaf margin

entire
lobed
serrated
wavy
I do not know

Leaf stalk

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

has hairs
no hairs
I do not know

Thorns or spines

I do not know

Present
Not Present
I do not know

Ochrea

Present
Not Present
I do not know

Milky sap

Present
Not Present
I do not know

Dominant flower color

yellow

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

winter annual
summer annual
biennial
perennial
I do not know

Root structure

taproot

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

Common name

(43 weeds)
absinthe
arrowleaf sida
bearded beggarticks
bird's-foot trefoil
black medic
buffalobur
burcucumber
butterfly weed
Canada goldenrod
clammy groundcherry
common evening primrose
common groundsel
common plantain
common ragweed
common sunflower
common yellow oxalis
corn chamomile
creeping woodsorrel
cutleaf evening primrose
disc mayweed
eastern daisy fleabane
flower of an hour
hairy fleabane
hedgemustard
horseweed
Jerusalem artichoke
lanceleaf ragweed
lawndaisy
moth mullein
panicledleaf ticktrefoil
perennial sowthistle
piedmont bedstraw
prairie fleabane
prickly lettuce
prickly sida
sensitive partridge pea
sericea lespedeza
spiny sowthistle
sun spurge
toothed spurge
velvetleaf
wild mustard
yellow spring bedstraw

Scientific Name

(43 weeds)
Abutilon theophrasti
Ambrosia artemisiifolia
Ambrosia bidentata
Anthemis arvensis
Artemisia absinthium
Asclepias tuberosa
Bellis perennis
Bidens aristosa
Chamaecrista nictitans ssp. nictitans var. nictitans
Conyza bonariensis
Conyza canadensis
Cruciata pedemontana
Desmodium paniculatum
Erigeron annuus
Erigeron strigosus
Euphorbia dentata
Euphorbia helioscopia
Galium verum
Helianthus annuus
Helianthus tuberosus
Hibiscus trionum
Lactuca serriola
Lespedeza cuneata
Lotus corniculatus
Matricaria discoidea
Medicago lupulina
Oenothera biennis
Oenothera laciniata
Oxalis corniculata
Oxalis stricta
Physalis heterophylla
Plantago major
Senecio vulgaris
Sicyos angulatus
Sida rhombifolia
Sida spinosa
Sinapis arvensis ssp. arvensis
Sisymbrium offcinale
Solanum rostratum
Solidago altissima
Sonchus arvensis
Sonchus asper
Verbascum blattaria

Image of Virginia Cooperative Extension logo