This name is a synonym of Bromus rigidus Roth.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 417283) with original publication details: Fl. Pyren. 4: 382 1901.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:403793-1.
This name was in version 1 of The Plant List, record kew-417283.