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 and as an invalid name (record 402579) with original publication details: Bull. Soc. Bot. France 73: 676 1927.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:394400-1.
This name was in version 1 of The Plant List, record kew-402579.