"Simple" images

Verbascum thapsus

Verbascum thapsus

Photo credit

Steve Dewey, Utah State University

Verbascum thapsus

Verbascum thapsus

Photo credit

Ohio State Weed Lab Archive

Verbascum thapsus

Verbascum thapsus

Photo credit

Theodore Webster, USDA ARS

Verbascum thapsus

Verbascum thapsus

Photo credit

L. L. Berry, Bugwood.org

Common mullein

Rumex crispus - seedhead, leaves

Rumex crispus - seedhead, leaves

Rumex crispus - seedhead, whole plant

Rumex crispus - seedhead, whole plant

Rumex crispus - whole plant

Rumex crispus - whole plant

Rumex crispus - whole plant, leaves, seedhead

Rumex crispus - whole plant, leaves, seedhead

Curly dock

Rumex obtusifolius

Rumex obtusifolius

Photo credit

Ohio State Weed Lab Archive

Rumex obtusifolius

Rumex obtusifolius

Photo credit

Ohio State Weed Lab Archive

Rumex obtusifolius

Rumex obtusifolius

Photo credit

Ohio State Weed Lab Archive

Rumex obtusifolius

Rumex obtusifolius

Photo credit

Olivia McCandless

Broadleaf dock

Protulaca oleracea

Protulaca oleracea

Photo credit

Utah State University Archive

Protulaca oleracea

Protulaca oleracea

Photo credit

Howard F. Schwartz, Colorado State University

Protulaca oleracea

Protulaca oleracea

Photo credit

Joseph LaForest, University of Georgia

Protulaca oleracea

Protulaca oleracea

Protulaca oleracea

Protulaca oleracea

Photo credit

Lynn Sosnoskie, University of Georgia

Protulaca oleracea - seed

Protulaca oleracea - seed

Photo credit

Olivia McCandless

Protulaca oleracea - seedling

Protulaca oleracea - seedling

Photo credit

Olivia McCandless

Common purslane

Ranunculus bulbosus

Ranunculus bulbosus - inflorescence

Photo credit

Kristian Peters

Bulbous buttercup

Polygonum perfoliatum

Polygonum perfoliatum

Photo credit

Jil Swearingen, USDI National Parks Service

Polygonum perfoliatum

Polygonum perfoliatum

Photo credit

Leslie J. Mehrhoff, University of Connecticut

Polygonum perfoliatum

Polygonum perfoliatum

Photo credit

Bruce Ackley, Ohio State University

Polygonum perfoliatum

Polygonum perfoliatum

Photo credit

Leslie J. Mehrhoff, University of Connecticut

Polygonum perfoliatum

Polygonum perfoliatum

Photo credit

Leslie J. Mehrhoff, University of Connecticut

Mile-a-minute

Rhamnus cathartica - leaves

Rhamnus cathartica - leaves

Rhamnus cathartica - leaves, stem

Rhamnus cathartica - leaves, stem

Rhamnus cathartica - whole plant

Rhamnus cathartica - whole plant

Common buckthorn

Galium aparine

Photo credit

Grant Thompson

Galium aparine

Photo credit

Grant Thompson

Galium aparine

Photo credit

Grant Thompson

Catchweed bedstraw

Galium mullugo

Photo credit

Grant Thompson

Galium mullugo

Photo credit

Grant Thompson

Galium mullugo

Photo credit

Grant Thompson

Galium mullugo

Photo credit

Grant Thompson

Galium mullugo

Photo credit

Grant Thompson

Galium mullugo

Photo credit

Grant Thompson

Smooth bedstraw

Linaria vulgaris

Photo credit

Grant Thompson

Linaria vulgaris

Photo credit

Grant Thompson

Linaria vulgaris

Photo credit

Grant Thompson

Linaria vulgaris

Photo credit

Grant Thompson

Linaria vulgaris

Photo credit

Grant Thompson

Yellow toadflax

Digitaria ischaemum - leaf

Digitaria ischaemum - leaf

Photo credit

Grant Thompson

Digitaria ischaemum - leaf

Digitaria ischaemum - leaf

Digitaria ischaemum - seed

Digitaria ischaemum - seed

Photo credit

Olivia McCandless

Digitaria ischaemum - seedling

Digitaria ischaemum - seedling

Photo credit

Olivia McCandless

Digitaria ischaemum - stem

Digitaria ischaemum - stem

Photo credit

Grant Thompson

Digitaria ischaemum - whole plant

Digitaria ischaemum - whole plant

Photo credit

Grant Thompson

Smooth crabgrass

Digitaria sanguinalis

Photo credit

Grant Thompson

Digitaria sanguinalis

Digitaria sanguinalis

Note stiff hairs at 90-degree angle to stem

Digitaria sanguinalis - seed

Digitaria sanguinalis - seed

Photo credit

Olivia McCandless

Digitaria sanguinalis - seedling

Digitaria sanguinalis - seedling

Photo credit

Olivia McCandless

Large crabgrass

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