This name is a synonym of Puccinellia fasciculata (Torr.) E.P.Bicknell.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 438851) with original publication details: Trans. & Proc. Roy. Soc. New Zealand 69: 267 1939.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:419161-1.
This name was in version 1 of The Plant List, record kew-438851.