This name is a synonym of Aristolochia kaempferi Willd..
The record derives from WCSP (in review)
(data supplied on 2012-03-23)
which reports it as a synonym with original publication details: Bot. Mag. (Tokyo) 24: 125 1910.
This name was in version 1 of The Plant List, record kew-2651528, and has not been changed.