⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record kew-2726203, with some changes.
This name is a synonym of Clematis florida .
The record derives from WCSP (in review) which reports it as a synonym and as an illegitimate name with original publication details: Bot. Mag. (Tokyo) 26: 81 1912.