This name is a synonym of Centaurea jacea subsp. haynaldii Hayek.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 02BC8949-EDE5-484A-9B92-9D81979AF2C5) with original publication details: 696 1901.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:190630-1.
This name was in version 1 of The Plant List, record gcc-101777.