⚠ Version 1 of The Plant List has been superseded.

This name is in version 1.1 of The Plant List, record kew-403541, with some changes.

Calamagrostis viridula var. langsdorffii (Link) Hack. 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 403541) with original publication details: Fl. Ob Inf. 107 1896.