This name is a synonym of Vicia pampicola var. burkartii Giangualani.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 13013654) with original publication details: Darwiniana 14(1): 182 1966.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:265110-2.
This name was in version 1 of The Plant List, record tro-13013654, and has not been changed.