This name is a synonym of Bromus riparius Rehmann.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym and as an illegitimate name (record 402125) with original publication details: Oesterr. Bot. Z. 10: 227 1860.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:394181-1.
This name was in version 1 of The Plant List, record kew-402125.