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 418516) with original publication details: Preslia 70: 105 1998.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:1002583-1.
This name was in version 1 of The Plant List, record kew-418516, and has not been changed.