This name is a synonym of Agropyron desertorum (Fisch. ex Link) Schult..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 388348) with original publication details: Vasc. Pl. Wyoming 298 1988.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:1172828-2.
This name was in version 1 of The Plant List, record kew-388348.