This name is a synonym of Eragrostis pycnantha (Phil.) Parodi ex Nicora.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 437059) with original publication details: Anales Univ. Chile 94: 165 1896.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:204445-2.
This name was in version 1 of The Plant List, record kew-437059, and has not been changed.