This name is a synonym of Sorghastrum incompletum (J.Presl) Nash.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 443185) with original publication details: Notizbl. Bot. Gart. Berlin-Dahlem 14: 96 1938.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:422036-1.
This name was in version 1 of The Plant List, record kew-443185.