This name is a synonym of Leymus secalinus (Georgi) Tzvelev.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 448777) with original publication details: Reise Russ. Reich. 3: 287 1776.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:327637-2.
This name was in version 1 of The Plant List, record kew-448777.