This name is a synonym of Adenophora stenanthina (Ledeb.) Kitag..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 364422) with original publication details: Bot. Reg. 2: t. 149 1816.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:140154-1.
This name was in version 1 of The Plant List, record kew-364422.