This name is a synonym of Bromus intermedius Guss..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 401166) with original publication details: Bull. U.S.D.A. (1895-1901) 23: 19 1900.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:37055-2.
This name was in version 1 of The Plant List, record kew-401166.