This name is a synonym of Calamagrostis stricta (Timm) Koeler.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 403385) with original publication details: Acta Bot. Bohem. 13: 99 1942.
This name was in version 1 of The Plant List, record kew-403385.