This name is a synonym of Aristida setacea Retz..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym and as an invalid name (record 394311) with original publication details: Syst. Cat. Fl. Pl. Ceylon 108 1885.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:389216-1.
This name was in version 1 of The Plant List, record kew-394311, and has not been changed.