This name is a synonym of Helictotrichon quadridentulum (Döll) Renvoize.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 397699) with original publication details: Oesterr. Bot. Z. 52: 188 1902.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:27190-2.
This name was in version 1 of The Plant List, record kew-397699, and has not been changed.