This name is a synonym of Rumex pictus Forssk..
The record derives from WCSP (in review)
(data supplied on 2012-03-23)
which reports it as a synonym with original publication details: Mém. Acad. Roy. Sci. (Turin) 1: 335 1802 publ. 1804.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:697239-1.
This name was in version 1 of The Plant List, record kew-2423977.