This name is a synonym of Clematis montana Buch.-Ham. ex DC..
The record derives from WCSP (in review)
(data supplied on 2012-03-23)
which reports it as a synonym and as an invalid name with original publication details: Numer. List 4682 1831.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:710018-1.
This name was in version 1 of The Plant List, record kew-2726623.