This name is a synonym of Spartina alterniflora Loisel..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 443831) with original publication details: Manual ed. 2: 552 1856.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:241136-2.
This name was in version 1 of The Plant List, record kew-443831.