This name is a synonym of Saxifraga oppositifolia L..
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 29101387) with original publication details: Pflanzenr. 69(IV. 117): 640 1919.
This name was in version 1 of The Plant List, record tro-29101387.