This name is a synonym of Ranunculus japonicus var. propinquus (C.A. Mey.) W.T. Wang.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 50076325) with original publication details: Acta Phytotax. Geobot. 24(4–6): 165, f. 2 1970.
This name was in version 1 of The Plant List, record tro-50076325.