This name is a synonym of Aristida achalensis Mez.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym and as an invalid name (record 394607) with original publication details: Meded. Rijks-Herb. 54: 4 1926.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:19974-2.
This name was in version 1 of The Plant List, record kew-394607.