⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record kew-2725829, with some changes.
This name is a synonym of Clematis patens .
The record derives from WCSP (in review) which reports it as a synonym with original publication details: Edwards's Bot. Reg. 23: t. 1955 1837.