University of Maryland Extension

Weed Identification Photos

Featured seasonal weeds: Spring l Summer l Fall

Grassy Weeds
Broadleaf Weeds
Woody-Vining Weeds
Lawn Weeds
Invasive Plant Photos and Information

Important Tips for Weed Control

  • Identify the weed! And learn about its life cycle. This will help in control.
  • Minimize soil disturbance. Digging and cultivating brings weed seeds to the surface and when exposed to light they will germinate. 
  • Do not let weeds flower and go to seed. At minimum cut them back or use a string trimmer.
  • Pull weeds when the soil is moist. This will make the job easier! 
  • Cover bare soil with mulch or groundcovers. Bare soil is an invitation for weeds to move in.
  • Glyphosate (Roundup®) Information and Alternatives for Weed Management

  Key: * invasive

Grassy
weeds
and sedges



flowering annual bluegrass
Annual bluegrass

mature bamboo
Bamboo

bermudagrass or wiregrass
Bermudagrass
crabgrass weed
Crabgrass
dallisgrass weed
Dallisgrass

foxtail seed heads
Foxtail

goosegrass weed
Goosegrass
Japanese stiltgrass weed
Japanese stiltgrass
 *

Kyllinga seed head
Kyllinga

nimblewill weed
Nimblewill (right)

orchardgrass weedOrchardgrass

quackgrass weed
Quackgrass

invasive wavyleaf basketgrass
Wavyleaf basketgrass *
yellow nutsedge weed
Yellow nutsedge

 

Broadleaf
or 
Herb-
aceous

american burnweed seedheads
American burnweed

dayflower in flowerAsiatic dayflower

closeup of black medic
Black medic

bulbous buttercup
Buttercup

flowering Canada thistle
Canada thistle *

carpetweed closeup
Carpetweed

flowering chicory
Chicory

white clover
Clover

common chickweed weed
Common chickweed

common cinquefoil in container
Common cinquefoil
cocklebur weed
Common cocklebur 

common dandelion
Dandelion

flowering deadnettle
Deadnettle

flowering dock
Dock

flowering fleabane
Fleabane

galinsoga weed
Galinsoga

flowering garlic mustard
Garlic mustard *

giant-hogweed-flower
Giant hogweed *

flowering ground ivy
Ground ivy (Creeping Charlie)

flowering groundsel
Groundsel

flowering hairy bittercress
Hairy bittercress

henbit weed
Henbit

orange horsenettle berries
Horsenettle

horseweed seedling
Horseweed

strawberry indian mock with red berries
Indian mock strawberry

jimsonweed and flowerJimsonweed

Knawel weed
Knawel

 Knotweed, Polygonum aviculare
Knotweed

lambsquarter weed
Lambsquarter

Common lespedeza
Lespedeza

flowering lesser celandine
Lesser celandine *

mallow weed
Mallow 

mugwort weed
Mugwort

mulberry weed
Mulberry Weed

mature pigweed
Pigweed

broadleaf plantain weed
Plantain

pokeweed and berries
Pokeweed

spurge closeup
Prostrate Spurge

 purslane weed
Purslane

ragweed seedling
 
Ragweed

sheep sorrel in lawn
Red sorrel (Sheep sorrel)

flowering shepherd's purseShepherd's Purse

flowering smartweed
Smartweed (Pennsylvania)

flowering speedwell
Speedwell

flowering star of bethlehem
Star of Bethlehem

velvetleaf weed
Velvetleaf

wild garlic weed
Wild garlic 

flowering wild violet
Wild violet

flowering wood sorrel
Wood sorrel (Oxalis)

yarrow foliage
Yarrow

 

 

Woody and Vining Weeds

autumn-olive-leaves
Autumn olive *

flowering bindweed
Bindweed

Border privet flowers
Border privet *

Bradford pear tree
Bradford pear *

burning bush hedge
Burning bush *

butterfly-bush
Butterfly bush *

 

wisteria-chinensis
Chinese and Japanese Wisteria *

dodder covering plants
Dodder

English ivy on slope
English ivy *

amur-honeysuckle
Exotic bush honeysuckle *

honeysuckle vine and flowersHoneysuckle *

Japanese barberry hedge
Japanese barberry *

Japanese knotweed weedJapanese knotweed*

kudzu vine
Kudzu*

mile a minute vine and berries
Mile a Minute*

flowering multiflora rose
Multiflora rose *

norway-maple-leaf
Norway maple *

oriental bittersweet vine and berries
Oriental bittersweet *

paulownia tree
Paulownia *

poison ivy growing up tree
Poison ivy

porcelain berry and ripe berries
Porcelainberry *

smilax or greenbrier
Smilax (Greenbrier)

ailanthus leaf
Tree of Heaven *

trumpetcreeper
Trumpet creeper

Virginia creeper foliage
Virginia creeper

wineberry and berries
Wineberry *

Winter creeper euonymus groundcover
Winter creeper euonymus *

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