⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record tro-8502151, with some changes.
This name is a synonym of Calystegia pubescens Lindl..
The record derives from Tropicos which reports it as a synonym (record 8502151) with original publication details: Bot. Mag. (Tokyo) 39(468): 304 304 1925.