This name is a synonym of Stipagrostis uniplumis var. neesii (Trin. & Rupr.) De Winter.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 395291) with original publication details: Sp. Gram. Stipac. 173 1842.
This name was in version 1 of The Plant List, record kew-395291, and has not been changed.