This name is a synonym of Hyparrhenia filipendula (Hochst.) Stapf.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 406167) with original publication details: Cat. Afr. Pl. 2: 157 1899.
This name was in version 1 of The Plant List, record kew-406167.