"Heart or spade" images

Sonchus asper

Sonchus asper, leaf

Sonchus asper

Sonchus asper, inflorescence

Sonchus asper

Sonchus asper

Spiny sowthistle

Vitis spp.

Vitis spp., leaf

Vitis spp.

Vitis spp.

Wild grape

Ampelopsis brevipedunculata

Photo credit

Jil Swearingen, USDI, National Parks Service

Ampelopsis brevipedunculata

Photo credit

James H. Miller, USDA Forest Service

Ampelopsis brevipedunculata

Photo credit

James H. Miller, USDA Forest Service

Ampelopsis brevipedunculata

Photo credit

Leslie J. Mehrhoff, University of Connecticut

Porcelain berry

Solanum dulcamara

Solanum dulcamara

Photo credit

Rob Routledge, Sault College

Solanum dulcamara

Solanum dulcamara

Photo credit

Mary Ellen Harte, Bugwood.org

Solanum dulcamara

Solanum dulcamara

Photo credit

John Cardina, Ohio State University

Solanum dulcamara

Solanum dulcamara

Photo credit

Jan Samanek, State Phytosanitary Administration

Bittersweet nightshade

Ranunculus bulbosus

Ranunculus bulbosus - inflorescence

Photo credit

Kristian Peters

Bulbous buttercup

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

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

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

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

Polygonum convolvulus - seed

Photo credit

Olivia McCandless

Wild buckwheat

Oxalis corniculata

Oxalis corniculata

Photo credit

Joseph M. DiTomaso, University of California - Davis

Oxalis corniculata

Oxalis corniculata

Photo credit

Joseph M. DiTomaso, University of California - Davis

Oxalis corniculata

Oxalis corniculata

Photo credit

Joseph M. DiTomaso, University of California - Davis

Creeping woodsorrel

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

Sicyos angulatus

Photo credit

Grant Thompson

Sicyos angulatus

Photo credit

Grant Thompson

Sicyos angulatus

Photo credit

Grant Thompson

Burcucumber

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