This name is a synonym of Tragopogon dubius subsp. desertorum (Lindem.) Tzvelev.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 1BBEEAC0-3C43-40B8-89DF-F6A38D906C24) with original publication details: 567 1965.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:256156-1.
This name was in version 1 of The Plant List, record gcc-141132.