This name is a synonym of Centaurea resupinata subsp. lagascae (Nyman) Fern.Casas & Susanna.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym and as an illegitimate name (record DDB783DD-794D-4A92-90CE-6212F1410985) with original publication details: 59 1863.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:190707-1.
This name was in version 1 of The Plant List, record gcc-52885.