This name is a synonym of Aristida mutabilis Trin. & Rupr..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 394400) with original publication details: Ann. Bot. (Rome) 10: 409 1912.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:389255-1.
This name was in version 1 of The Plant List, record kew-394400.