This name is a synonym of Calamagrostis epigejos (L.) Roth.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 402666) with original publication details: Syn. Mitteleur. Fl. 2(1): 215 1899.
This name was in version 1 of The Plant List, record kew-402666.