Polygonum perfoliatum Polygonum perfoliatum Leaf Stem Photo credit Jil Swearingen, USDI National Parks Service
Polygonum perfoliatum Polygonum perfoliatum Leaf Seed Stem Inflorescence Photo credit Leslie J. Mehrhoff, University of Connecticut
Polygonum perfoliatum Polygonum perfoliatum Leaf Stem Photo credit Bruce Ackley, Ohio State University
Polygonum perfoliatum Polygonum perfoliatum Leaf Stem Photo credit Leslie J. Mehrhoff, University of Connecticut
Polygonum perfoliatum Polygonum perfoliatum Whole plant Photo credit Leslie J. Mehrhoff, University of Connecticut
Polygonum persicaria Polygonum persicaria Leaf Inflorescence Photo credit Steve Dewey, Utah State University
Polygonum persicaria Polygonum persicaria Leaf Stem Photo credit Steve Manning, Invasive Plant Control
Polygonum persicaria Polygonum persicaria Stem Photo credit Joseph M. DiTomaso, University of California - Davis
Rumex acetosella - whole plant, inflorescence Rumex acetosella - whole plant, inflorescence Whole plant Inflorescence
Dipsacus fullonum Dipsacus fullonum Whole plant Inflorescence Photo credit Steve Dewey, Utah State University
Convolvulus arvensis - leaves, flower buds Convolvulus arevnsis - leaves, flower buds Leaf Inflorescence
Convolvulus arvensis - seedling Convolvulus arvensis - seedling Seedling Photo credit Olivia McCandless
