⚠ Version 1 of The Plant List has been superseded.

This name is in version 1.1 of The Plant List, record kew-340865, and has not been changed.

Potamogeton densus var. serratus (L.) Nyman is a synonym of Groenlandia densa (L.) Fourr.

This name is a synonym of Groenlandia densa (L.) Fourr..

The record derives from WCSP which reports it as a synonym (record 340865) with original publication details: Consp. Fl. Eur. 683 1882.