This name is a synonym of Tragopogon porrifolius subsp. longirostris (Sch.Bip.) Greuter.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record C4ABF0E4-0BCE-49D7-946B-1D4A38D99AE3) with original publication details: Consp. 462. 462 1879.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:255943-1.
This name was in version 1 of The Plant List, record gcc-15817.