"Upright" images

Abutilon theophrasti

Photo credit

Grant Thompson

Abutilon theophrasti

Photo credit

Grant Thompson

Abutilon theophrasti

Photo credit

Grant Thompson

Abutilon theophrasti

Photo credit

Grant Thompson

Abutilon theophrasti seed

Abutilon theophrasti seed

Photo credit

Olivia McCandless

Abutilon theophrasti seedling

Abutilon theophrasti seedling

Photo credit

Olivia McCandless

Velvetleaf

Malva neglecta

Photo credit

Grant Thompson

Malva neglecta

Photo credit

Grant Thompson

Malva neglecta

Photo credit

Grant Thompson

Malva neglecta

Photo credit

Grant Thompson

Common mallow

Sida spinosa

Photo credit

Grant Thompson

Sida spinosa

Note pair of linear stipules at node, "spines"

Photo credit

Grant Thompson

Sida spinosa

Photo credit

Grant Thompson

Prickly sida

Ligustrum obtusifolium

Ligustrum obtusifolium

Photo credit

Leslie J. Mehrhoff, University of Connecticut

Ligustrum obtusifolium

Ligustrum obtusifolium

Photo credit

Leslie J. Hehrhoff, University of Connecticut

Border privet

Oxalis stricta - flower, leaves

Oxalis stricta - flower, leaves

Oxalis stricta - whole plant

Oxalis stricta - whole plant

Oxalis stricta - whole plant

Oxalis stricta - whole plant

Yellow woodsorrel

Phytolacca americana

Photo credit

Grant Thompson

Phytolacca americana

Photo credit

Grant Thompson

Phytolacca americana

Photo credit

Grant Thompson

Phytolacca americana

Photo credit

Grant Thompson

Phytolacca americana

Photo credit

Grant Thompson

Common pokeweed

Polygonum cuspidatum

Polygonum cuspidatum

Photo credit

Tom Heutte, USDA Forest Service

Polygonum cuspidatum

Polygonum cuspidatum

Photo credit

Britt Slattery, US Fish and Wildlife Service

Polygonum cuspidatum

Polygonum cuspidatum

Photo credit

Steve Manning, Invasive Plant Control

Japanese knotweed

Ambrosia artemisiifolia

Photo credit

John D. Byrd, Mississippi State University

Ambrosia artemisiifolia

Photo credit

Theodore Webster, USDA ARS

Ambrosia artemisiifolia

Ambrosia artemisiifolia

Photo credit

Olivia McCandless

Ambrosia artemisiifolia

Ambrosia artemisiifolia

Photo credit

Olivia McCandless

Common ragweed

Euphoriba esula - flowers, bracts

Euphoriba esula - flowers, bracts

Euphoriba esula - leaves, bracts

Euphoriba esula - leaves, bracts

Euphoriba esula - whole plant

Leafy spurge

Elaeagnus angustifolia

Elaeagnus angustifolia

Photo credit

Patrick Breen, Oregon State University

Elaeagnus angustifolia

Elaeagnus angustifolia

Photo credit

Steve Dewey, Utah State University

Elaeagnus angustifolia

Elaeagnus angustifolia

Photo credit

Patrick Breen, Oregon State University

Elaeagnus angustifolia

Elaeagnus angustifolia

Photo credit

David J. Moorhead, University of Georgia

Russian olive

Dipsacus fullonum

Dipsacus fullonum

Photo credit

Steve Dewey, Utah State University

Dipsacus fullonum

Dipsacus fullonum

Photo credit

Steve Dewey, Utah State University

Dipsacus fullonum

Dipsacus fullonum

Photo credit

Steve Dewey, Utah State University

Dipsacus fullonum

Dipsacus fullonum

Photo credit

Ohio State Weed Lab Archive

Common teasel

Galinsoga ciliata - flowers

Galinsoga ciliata - flowers

Galinsoga ciliata - flowers, leaves

Galinsoga ciliata - flowers, leaves

Galinsoga ciliata - leaf

Galinsoga ciliata - leaf

Galinsoga ciliata - seed

Galinsoga ciliata - seed

Photo credit

Olivia McCandless

Galinsoga ciliata - stem

Galinsoga ciliata - stem

Galinsoga ciliata - whole plant

Galinsoga ciliata - whole plant

Galinsoga ciliata - whole plant

Galinsoga ciliata - whole plant

Hairy galinsoga

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