Catherine Herms, The Ohio State University, Bugwood.org
in flower
Mary Ellen (Mel) Harte, Bugwood.org
meadow bistort (Polygonum bistorta) flower(s)
Mary Ellen (Mel) Harte, Bugwood.org
Mary Ellen (Mel) Harte, Bugwood.org
knotweed (Polygonum spp.) plant(s)
Rob Routledge, Sault College, Bugwood.org
Fallopia cilinodis syn. Polygonum cilinode - fringed black bindweed
Rob Routledge, Sault College, Bugwood.org
Fallopia cilinodis syn. Polygonum cilinode - fringed black bindweed
Chris Evans, University of Illinois, Bugwood.org
Oriental lady's thumb (Polygonum posumbu) flower(s) on ( )
Caleb Slemmons, National Ecological Observatory Network, Bugwood.org
American bistort (Polygonum bistortoides) flower(s) on ( )