This name is a synonym of Centaurea simplicaulis Boiss. & Huet.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 0650C772-3FA9-47A8-85C3-DBAE7189A912) with original publication details: 38 1920.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:190807-1.
This name was in version 1 of The Plant List, record gcc-129170, and has not been changed.