This name is a synonym of Centaurea aristata subsp. langeana (Arènes) Dostál.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record B117EBBD-5E1C-43E7-B7A3-4BA9AC07533E) with original publication details: 426 1879.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:190063-1.
This name was in version 1 of The Plant List, record gcc-40831.