This name is a synonym of Ranunculus grayi Britton.
The record derives from WCSP (in review)
(data supplied on 2012-03-23)
which reports it as a synonym with original publication details: Ark. Bot. n.s., 7(1): 59 1968.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:217307-2.
This name was in version 1 of The Plant List, record kew-2529188, and has not been changed.