⚠ Version 1 of The Plant List has been superseded.

This name is in version 1.1 of The Plant List, record kew-403530, with some changes.

Calamagrostis villosa var. ramosa Nakai 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 403530) with original publication details: Bot. Mag. (Tokyo) 35: 139 1921.