This name is a synonym of Centaurea monticola subsp. orthoacantha (Pau & Font Quer) Ibn Tattou.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 1C5E1CA6-6955-4361-BD05-5CEC56C950A2).
This name was in version 1 of The Plant List, record gcc-50127, and has not been changed.