⚠ Version 1 of The Plant List has been superseded.

This name is in version 1.1 of The Plant List, record kew-266067, with some changes.

Sparganium erectum subsp. polyedrum (Graebn.) Schinz & Thell. is a synonym of Sparganium erectum subsp. erectum

This name is a synonym of Sparganium erectum subsp. erectum .

The record derives from WCSP which reports it as a synonym (record 266067) with original publication details: Fl. Schweiz 1: 26 1908.