This name is a synonym of Stipagrostis uniplumis var. intermedia (Schweick.) De Winter.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 394687) with original publication details: Bothalia 4: 124 1941.
This name was in version 1 of The Plant List, record kew-394687, and has not been changed.