Centaurea, Dostal

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 : 272

Sect. Horridae Dostál . Stems herbaceous or woody at base, the branches spiny. Leaf-segments rigid, the terminal spiny. Involucre ovoid or cylindrical; appendages mucronate or spiny, not filiform and plumose-fimbriate at apex, the lower fimbriae free. Florets pink or yellow.