Centaurea, Boiss.

Tutin, T. G., Heywood, V. H., Burges, N. A., Moore, D. M., Valentine, D. H., Walters, S. M. & Webb, D. A., 1976, Flora Europaea. Volume 4. Plantaginaceae to Compositae (and Rubiaceae), Cambridge University Press : 268

Sect. Rhizanthae Boiss. Stems short, or absent. Leaves usually in a basal rosette. Involucre ovoid; bracts ovate to oblong, with dorsal veins; appendages very narrowly decurrent, fimbriate or denticulate, spinose at apex.