⚠ Version 1 of The Plant List has been superseded.

This name is in version 1.1 of The Plant List, record tro-26300219, and has not been changed.

Potamogeton gramineus f. spathuliformis J.W. Robbins is a synonym of Potamogeton spathuliformis (J.W. Robbins) Morong

The record derives from Tropicos which reports it as a synonym (record 26300219) with original publication details: Manual (ed. 5) 487 487 1867.