This name is a synonym of Cynanchum biondioides W.T.Wang.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 2610860) with original publication details: Acta Bot. Yunnan. 11(1): 48 1989.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:946570-1.
This name was in version 1 of The Plant List, record tro-2610860.