This name is a synonym of Ranunculus fasciculatus Sessé & Moc..
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 27103146) with original publication details: Amer. Midl. Naturalist 40(1): 106–107 1948.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:217420-2.
This name was in version 1 of The Plant List, record tro-27103146.