This name is a synonym of Caltha palustris L..
The record derives from WCSP (in review)
(data supplied on 2012-03-23)
which reports it as a synonym with original publication details: Acta Univ. Lund. n.s., 40: 712 1944.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:42871-2.
This name was in version 1 of The Plant List, record kew-2693869.