This name is a synonym of Ranunculus flagelliformis Sm..
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 50066950) with original publication details: Fieldiana, Bot. 28(1): 232–233 1951.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:217469-2.
This name was in version 1 of The Plant List, record tro-50066950, and has not been changed.