This name is a synonym of Eragrostis nigra Nees ex Steud..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 412905) with original publication details: Bull. Mus. Natl. Hist. Nat. 19: 495 1919.
This name was in version 1 of The Plant List, record kew-412905, and has not been changed.