This name is a synonym of Centaurea biformis var. oscillans Pau & Font Quer.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 60B42530-2235-4073-B8D3-377CED53CB28) with original publication details: 302 1989.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:955990-1.
This name was in version 1 of The Plant List, record gcc-30000.