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 (record 398024) with original publication details: Tabl. Encycl. 1: n. 1113 1791.
This name was in version 1 of The Plant List, record kew-398024, and has not been changed.