⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record kew-2726497, and has not been changed.
This name is a synonym of Clematis akoensis Hayata.
The record derives from WCSP (in review) which reports it as a synonym with original publication details: J. Coll. Sci. Imp. Univ. Tokyo 30(1): 17 1911.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:709943-1.