This name is a synonym of Eutrema japonicum (Miq.) Koidz..
The record derives from WCSP (in review)
(data supplied on 2012-03-23)
which reports it as a synonym with original publication details: Fukuoka Hakubuts. Zasshi 1: 369 1935.
This name was in version 1 of The Plant List, record kew-2805500.