This name is a synonym of Rumex thyrsiflorus Fingerh..
The record derives from WCSP (in review)
(data supplied on 2012-03-23)
which reports it as a synonym with original publication details: Novosti Sist. Vyssh. Rast. 15: 108 1979.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:888631-1.
This name was in version 1 of The Plant List, record kew-2418221, and has not been changed.