As classified in WFO snapshot
December 2022
Warning: older classification
variety
Potamogeton polygonifolius var. parnassifolius
(Mert. & W.D.J.Koch) Gren. & Godr.
This variety name was first published in Fl. France Corse 3: 313 (1856)
This variety name has been reclassified since this snapshot. Its current preferred usage is a synonym .