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 A5A06C3F-747F-4728-B0EC-526766E2E3A0) with original publication details: 84 1822.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:255962-1.
This name was in version 1 of The Plant List, record gcc-44477.