This name is a synonym of Hyparrhenia filipendula var. pilosa (Hochst.) Stapf.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 419819) with original publication details: Atti Reale Accad. Ital., Mem. Cl. Sci. Fis. 11: 63 1940.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:405568-1.
This name was in version 1 of The Plant List, record kew-419819.