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 and as an illegitimate name (record 3E1419FB-F812-483B-9B7B-2C80EAD242AF) with original publication details: 178 1796.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:255995-1.
This name was in version 1 of The Plant List, record gcc-24084.