This name is a synonym of Aristida culionensis Pilger ex Perkins.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 394425) with original publication details: Bull. Mus. Natl. Hist. Nat. 25: 370 1919.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:389271-1.
This name was in version 1 of The Plant List, record kew-394425, and has not been changed.