Gary Walton:
Acorus calamus var. americanus (calamus, sweetflag)
Gary Walton:
Azolla filiculoides with Lemna sp.
Gary Walton:
Bidens cernua (Nodding Bur-Marigold)
Gary Walton:
Bidens cernua (Nodding Bur-Marigold)
Gary Walton:
Bidens connata (Purple-stem Beggarticks)
Gary Walton:
Bidens connata (Purple-stem Beggarticks)
Gary Walton:
Bidens connata (Purple-stem Beggarticks)
Gary Walton:
Brasenia schreberi (Water-shield)
Gary Walton:
Brasenia schreberi (Water-shield)
Gary Walton:
Calla palustris (water calla)
Gary Walton:
Duckweed (Lemna minor)
Gary Walton:
Platanthera (Habenaria) psychodes (fringed purple orchid)
Gary Walton:
Ricciocarpos natans
Gary Walton:
Ricciocarpos natans
Gary Walton:
Sparganium glomeratum inflorescence
Gary Walton:
Sparganium glomeratum inflorescence
Gary Walton:
Sparganium glomeratum infructescence
Gary Walton:
Sparganium glomeratum infructescence
Gary Walton:
Sparganium glomeratum infructescence
Gary Walton:
Spirodela polyrhiza with Ricciocarpos natans
Gary Walton:
Caltha natans (floating marsh marigold)
Gary Walton:
Pinguicula vulgaris
Gary Walton:
Pinguicula vulgaris (violet butterwort)
Gary Walton:
Pinguicula vulgaris (violet butterwort) and Drosera rotundifolia (round-leaved sundew)
Gary Walton:
Platanthera clavellata (club-spur orchid)
Gary Walton:
Impatiens capensis (jewelweed)
Gary Walton:
Terminal rosette gall
Gary Walton:
Terminal rosette gall
Gary Walton:
Abies balsame (balsam fir) cones