This name is a synonym of Ranunculus acris subsp. borealis (Regel) Nyman.
The record derives from WCSP (in review)
(data supplied on 2012-03-23)
which reports it as a synonym with original publication details: Beitr. Pflanzenk. Russ. Reiches 2: 19 1845.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:712801-1.
This name was in version 1 of The Plant List, record kew-2524021, and has not been changed.