This name is a synonym of Aristida superpendens Domin.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 394718) with original publication details: Biblioth. Bot. 20: 339 1915.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:389482-1.
This name was in version 1 of The Plant List, record kew-394718, and has not been changed.