This name is a synonym of Centaurea jacea subsp. julica (Hayek) Greuter.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 371C3075-0F82-4C5D-A79B-FE20AF22AAAA) with original publication details: 81 1947.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:190774-1.
This name was in version 1 of The Plant List, record gcc-144448.