This name is a synonym of Atriplex barclayana (Benth.) D.Dietr..
The record derives from WCSP (in review)
(data supplied on 2012-03-23)
which reports it as a synonym with original publication details: Proc. Amer. Acad. Arts 11: 146 1876.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:164031-1.
This name was in version 1 of The Plant List, record kew-2665598, and has not been changed.