This name is a synonym of Stipagrostis zeyheri subsp. barbata (Stapf) De Winter.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 394466) with original publication details: Fl. Cap. 7: 565 1899.
This name was in version 1 of The Plant List, record kew-394466, and has not been changed.