⚠ Version 1 of The Plant List has been superseded.

This name is in version 1.1 of The Plant List, record kew-292338, with some changes.

Potamogeton pennsylvanicus var. portoricensis Graebn. is a synonym of Potamogeton nodosus Poir.

This name is a synonym of Potamogeton nodosus Poir..

The record derives from WCSP which reports it as a synonym (record 292338) with original publication details: Symb. Antill. 4: 73 1903.

Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:208898-2.