This name is a synonym of Tragopogon dubius subsp. major (Jacq.) Vollm..
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record B0DB1E9B-CCC2-4E9D-BD64-C0FECA7E8D48) with original publication details: 30 1822.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:256056-1.
This name was in version 1 of The Plant List, record gcc-117577.