"Entire" images

Photo credit

Theodore Webster, USDA ARS

Cerastium vulgatum

Photo credit

Theodore Webster, USDA ARS

Cerastium vulgatum

Photo credit

Ohio State Weed Lab Archive

Cerastium vulgatum - seed

Photo credit

Olivia McCandless

Cerastium vulgatum - seedling

Photo credit

Olivia McCandless

Mouseear chickweed

Hieracium pratense

Photo credit

Michael Shephard, USDA Forest Service, Bugwood.org

Hieracium pratense

Photo credit

Tom Heutte, USDA Forest Service, Bugwood.org

Hieracium pratense

Photo credit

Linda Wilson, University of Idaho, Bugwood.org

Hieracium pratense

Photo credit

Tom Heutte, USDA Forest Service, Bugwood.org

Hieracium pratense

Photo credit

USDA Agricultural Research Service , USDA Agricultural Research Service, Bugwood.org

Hieracium pratense - seed

Photo credit

Olivia McCandless

Hieracium pratense - seedling

Photo credit

Olivia McCandless

Yellow hawkweed

Conyza canadensis

Photo credit

Mary Ellen Harte, Bugwood.org

Conyza canadensis

Photo credit

Robert Vidski, Bugwood.org

Conyza canadensis

Photo credit

Rebekah D. Wallace, University of Georgia

Conyza canadensis - whole plant, flowers

Horseweed

Asclepias syriaca - inflorescence

Photo credit

Grant Thompson

Asclepias syriaca - leaf

Photo credit

Grant Thompson

Asclepias syriaca - seed

Photo credit

Olivia McCandless

Asclepias syriaca - seed pod

Asclepias syriaca - stem

Asclepias syriaca - whole plant with seedpods

Asclepias syrica - whole plant

Photo credit

Grant Thompson

Common milkweed

Vincetoxicum rossicum - seedpods

Vincetoxicum rossicum - whole plant

Pale swallow-wort

Euphoriba esula - flowers, bracts

Euphoriba esula - leaves, bracts

Euphoriba esula - whole plant

Leafy spurge

Euphoriba humistrata

Photo credit

Utah State University Archive

Euphoriba humistrata

Photo credit

Bruce Ackley, Ohio State University

Euphoriba humistrata

Photo credit

Bruce Ackley, Ohio State University

Prostrate spurge

Polygonum cuspidatum

Photo credit

Tom Heutte, USDA Forest Service

Polygonum cuspidatum

Photo credit

Britt Slattery, US Fish and Wildlife Service

Polygonum cuspidatum

Photo credit

Steve Manning, Invasive Plant Control

Japanese knotweed

Polygonum aviculare - invading sidewalk edge

Polygonum aviculare - leaf, stem

Polygonum aviculare - whole plant

Prostrate knotweed

Polygonum convolvulus

Photo credit

Grant Thompson

Polygonum convolvulus

Photo credit

Grant Thompson

Polygonum convolvulus

Photo credit

Grant Thompson

Polygonum convolvulus

Photo credit

Grant Thompson

Polygonum convolvulus - seed

Photo credit

Olivia McCandless

Wild buckwheat

Plantago major - whole plant

Plantago major - whole plant

Broadleaf plantain

Plantago lanceolata

Photo credit

Chris Evans, Illinois Wildlife Action Plan

Plantago lanceolata

Photo credit

John D. Byrd, Mississippi State University

Plantago lanceolata

Photo credit

Rebekah D. Wallace, University of Georgia

Plantago lanceolata

Photo credit

Olivia McCandless

Plantago lanceolata - seed

Photo credit

Olivia McCandless

Plantago lanceolata - seedling