⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record kew-2725942, and has not been changed.
This name is a synonym of Clematis hirsutissima Pursh.
The record derives from WCSP (in review) which reports it as a synonym with original publication details: Verh. Bot. Vereins Prov. Brandenburg 26: 180 1885.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:60344-2.