This name is a synonym of Helictotrichon filifolium (Lag.) Henrard.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 418411) with original publication details: Rivasgodaya 6: 37 1991.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:967152-1.
This name was in version 1 of The Plant List, record kew-418411, and has not been changed.