This name is a synonym of Vincetoxicum rossicum (Kleopow) Barbar..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 220530) with original publication details: Fl. URSS 18: 690 1952.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:94023-1.
This name was in version 1 of The Plant List, record kew-220530.