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 402890) with original publication details: Beih. Bot. Centralbl. 26(2): 231 1910.
This name was in version 1 of The Plant List, record kew-402890.