This name is a synonym of Rumex maritimus L..
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 26001393) with original publication details: Svensk. Exp. Mag. 3(5): 194 1900.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:224458-2.
This name was in version 1 of The Plant List, record tro-26001393.