Proserpinaca palustris

R. W. Smith
G. E. Crow terrestrial form
G. E. Crow terrestrial form
R. Schipper
R. Schipper
R. Schipper submersed leaf
R. Schipper aerial leaves
R. Schipper
R. Schipper leaf forms
A. A. Reznicek
R. Schipper
R. Schipper
R. Schipper
R. Schipper