⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record kew-2726868, with some changes.
This name is a synonym of Clematis heracleifolia DC..
The record derives from WCSP (in review) which reports it as a synonym with original publication details: Bot. Mag. (Tokyo) 31: 4 1917.