This name is a synonym of Helictotrichon pruinosum (Batt. & Trab.) Henrard.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 397388) with original publication details: Fl. Algérie Monocot.: 183 1895.
This name was in version 1 of The Plant List, record kew-397388.