This name is a synonym of Eragrostis nigra Nees ex Steud..
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 25554039) with original publication details: Syn. Pl. Glumac. 1: 267 1855.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:400810-1.
This name was in version 1 of The Plant List, record tro-25554039, and has not been changed.