⚠ Version 1 of The Plant List has been superseded.

This name is in version 1.1 of The Plant List, record tro-26300223, with some changes.

Potamogeton gramineus f. maximus Morong ex Bennett is a synonym of Potamogeton gramineus L.

This name is a synonym of Potamogeton gramineus L..

The record derives from Tropicos which reports it as a synonym (record 26300223) with original publication details: J. Bot. 19: 241 241 1881.