This name is a synonym of Helictotrichon setaceum (Vill.) Henrard.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym and as an illegitimate name (record 397616) with original publication details: Herb. Pedem. 6: 35 1836.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:391515-1.
This name was in version 1 of The Plant List, record kew-397616, and has not been changed.