This name is a synonym of Centaurea pseudoscabiosa subsp. ossethica (Sosn.) Gabrieljan.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 222950AA-4CFD-4F4C-81B9-640F3F0FF5A8) with original publication details: 614 1963.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:191164-1.
This name was in version 1 of The Plant List, record gcc-76169, and has not been changed.