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 400923) with original publication details: Acta Bot. Acad. Sci. Hung. 17: 115 1971 publ. 1972.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:881647-1.
This name was in version 1 of The Plant List, record kew-400923.