This name is a synonym of Ranunculus fraternus Schrenk ex Fisch. & C.A. Mey..
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 50076317) with original publication details: Bull. Soc. Imp. Naturalistes Moscou 33: 70 1860.
This name was in version 1 of The Plant List, record tro-50076317.