This name is a synonym of Ranunculus monophyllus Ovcz..
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 27105081) with original publication details: Bot. Mater. Gerb. Glavn. Bot. Sada R.S.F.S.R. 3: 55 1922.
This name was in version 1 of The Plant List, record tro-27105081.