This name is a synonym of Aristida venustula Arechav..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 395310) with original publication details: Bol. Inst. Bot. (São Paulo) 12: 152 1999.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:1083942-2.
This name was in version 1 of The Plant List, record kew-395310.