This name is a synonym of Eragrostis mauiensis Hitchc..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 412401) with original publication details: Bot. Arch. 5: 213 1924.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:400959-1.
This name was in version 1 of The Plant List, record kew-412401, and has not been changed.