This name is a synonym of Ranunculus ophioglossifolius Vill..
The record derives from WCSP (in review)
(data supplied on 2012-03-23)
which reports it as a synonym with original publication details: Animadv. Bot. Ranunc. Cand. 1: 19 1819.
This name was in version 1 of The Plant List, record kew-2526520, and has not been changed.