This name is a synonym of Eragrostis vacillans Rendle.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym and as an illegitimate name (record 412296) with original publication details: Oesterr. Bot. Z. 52: 305 1902.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:400877-1.
This name was in version 1 of The Plant List, record kew-412296, and has not been changed.