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 50076324) with original publication details: Lin. Fl. Manshur. 224, pl. 7 1939.
This name was in version 1 of The Plant List, record tro-50076324.