This name is a synonym of Hyparrhenia nyassae (Rendle) Stapf.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 406237) with original publication details: Bot. Jahrb. Syst. 54: 287 1917.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:396975-1.
This name was in version 1 of The Plant List, record kew-406237, and has not been changed.