This name is a synonym of Spartina alterniflora Loisel..
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 50196035) with original publication details: Prelim. Cat. , pl. 66 1888.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:241138-2.
This name was in version 1 of The Plant List, record tro-50196035.