This name is a synonym of Centaurea jacea subsp. forojuliensis (Poldini) Greuter.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record A072FCCA-AB04-420B-8DA7-AD2F2F216698) with original publication details: 303 1977.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:190517-1.
This name was in version 1 of The Plant List, record gcc-108805, and has not been changed.