This name is a synonym of Aristida utilis F.M.Bailey.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 395298) with original publication details: Austrobaileya 2: 95 1984.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:918248-1.
This name was in version 1 of The Plant List, record kew-395298.