Centaurea boissieri subsp. willkommii, (Schultz Bip.) 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 : 280

(e) Subsp. willkommii (Schultz Bip.) Dostál , loc. cit. (1976)

(C. willkommii Schultz Bip. ):

Stems 10-30 cm, ascending. Leaves white-tomentose on both surfaces; lower pinnatisect. Involucre c. 7x5 mm, ovoid-globose; appendages triangularlanceolate, with a recurved apical spine 4-5 mm, the lateral fimbriae long. Florets pale pink. Dry grassland and calcareous rocks. • S.E. Spain.