Centaurea biebersteinii subsp. cylindrocephala

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 : 279

(e) Subsp. cylindrocephala (Bornm.) Dostál, loc. cit. (1976)

( C. cylindrocephala Bornm. ):

Lower leaves 1 -pinnatisect, greylanate; segments linear, entire. Involucre 10x 5 mm, ovoidconical; appendages pale brown, spinulose at apex. 5. Jugoslavia (near Skopje).