⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record kew-2726124, and has not been changed.
This name is a synonym of Clematis speciosa (Makino) Makino.
The record derives from WCSP (in review) which reports it as a synonym with original publication details: Bot. Mag. (Tokyo) 6: 170 1892.