⚠ Version 1 of The Plant List has been superseded.

This name is in version 1.1 of The Plant List, record kew-403170, with some changes.

Calamagrostis phragmitoides var. flexuosa (Rupr.) Griseb. is a synonym of Calamagrostis purpurea (Trin.) Trin.

This name is a synonym of Calamagrostis purpurea (Trin.) Trin..

The record derives from WCSP which reports it as a synonym (record 403170) with original publication details: Fl. Ross. 4: 431 1852.