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 BE1E609B-BEA0-4E85-AAA8-712F6A4B01A4).
This name record (from TICA) was not included in version 1 of The Plant List. It is possible the same name was included from a different data source, to check this you can search for Tragopogon major in version 1 of The Plant List.