This name is a synonym of Chrysosplenium ramosum Maxim..
The record derives from WCSP (in review)
(data supplied on 2012-03-26)
which reports it as a synonym with original publication details: Nov. Fl. Jap. 3: 97 1939.
This name was in version 1 of The Plant List, record kew-2720255, and has not been changed.