This name is a synonym of Leymus mollis (Trin.) Pilg..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 410900) with original publication details: J. Coll. Sci. Imp. Univ. Tokyo 27: 24 1910.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:90187-2.
This name was in version 1 of The Plant List, record kew-410900.