This name is a synonym of Bromus arenarius Labill..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 441902) with original publication details: Fl. W. Austral. 1: 96 1952.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:421268-1.
This name was in version 1 of The Plant List, record kew-441902, and has not been changed.