This name is a synonym of Eragrostis welwitschii Rendle.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 412464) with original publication details: Bull. Jard. Bot. État 6: 61 1919.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:401006-1.
This name was in version 1 of The Plant List, record kew-412464, and has not been changed.