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 393721) with original publication details: Uppsala Univ. Årsskr. 7: 3 1945.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:13951-2.
This name was in version 1 of The Plant List, record kew-393721.