This name is a synonym of Elymus reflexiaristatus (Nevski) Melderis.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 25546851) with original publication details: Claves Plantarum Xinjiangensium 1: 163 1982.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:941970-1.
This name was in version 1 of The Plant List, record tro-25546851.