This name is a synonym of Eragrostis spectabilis (Pursh) Steud..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 413355) with original publication details: Linnaea 12: 451 1838.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:401690-1.
This name was in version 1 of The Plant List, record kew-413355, and has not been changed.