This name is a synonym of Aristida teretifolia Arechav..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym and as an invalid name (record 394417) with original publication details: Meded. Rijks-Herb. 54: 42 1926.
This name was in version 1 of The Plant List, record kew-394417, and has not been changed.