Agron 217 Weed Life Cycles

Asiatic Dayflower

annual

Field Horsetail

Perennial

yellow nutsedge

perennial

giant foxtail

annual

wild garlic

perennial

scouring rush

perennial

smilax

perennial

green foxtail

annual

yellow foxtail

annual

Longspire Sandbur

annual

barnyard grass

annual

shattercane

annual

fall panicum

annual

woolly cupgrass

annual

witchgrass

annual

large crabgrass

annual

annual bluegrass

annual and perennial

downy brome

annual

nimblewill

perennial

quackgrass

perennial

foxtail barley

perennial

reed canarygrass

perennial

goosegrass

annual

Japanese stiltgrass

annual

kochia

annual

Russian thistle

annual

waterhemp

annual

palmer amaranth

annual

common lamsquarters

annual

redroot pigweed

annual

poison ivy

perennial

wild carrot

biennial

wild parsnip

biennial

poison hemlock

biennial

common milkweed

perennial

honeyvine milkweed

perennial

hemp dogbane

perennial

common ragweed

annual

giant ragweed

annual

common burdock

biennial

musk thistle

biennial

bull thistle

biennial

Canada thistle

perennial

horseweed

annual

spiny sowthistle

annual

prickly lettuce

annual

common dandelion

perennial

common cocklebur

annual

hairy galinsoga

annual

common sunflower

annual

hedge mustard

annual

shepardspurse

annual

field pennycress

annual

garlic mustard

biennial

bush honeysuckle

perennial

common chickweed

annual

field bindweed

perennial

hedge bindweed

perennial

ivyleaf morningglory

annual

dodder

annual

burcucumber

annual

common/cutleaf teasel

perennial

leafy spurge

perennial

prostrate spurge

annual

black medic

annual

sericea lespedeza

perennial

ground ivy

perennial

motherwort

perennial

henbit

annual

purple loosestrife

perennial

velvetleaf

annual

Venice mallow

annual

common mallow

annual

prickly sida

annual

carpetweed

annual

wild four o'clock

perennial

yellow woodsorrel

perennial

common pokeweed

perennial

Buckhorn plaintain

perennial

plaintain

perennial

prostrate knotweed

annual

wild buckwheat

annual

Japanese knotweed

perennial

Pennsylvania smartweed

annual

swamp smartweed

perennial

curly dock

perennial

common purslane

annual

common buckthorn

perennial

multiflora rose

perennial

catchweed bedstraw

annual

common mullein

biennial

jimsonweed

annual

horsenettle

perennial

eastern black nightshade

annual

buffalobur

annual

stinging nettle

perennial

common blue violet

perennial

Virginia creeper

perennial

puncturevine

annual