Centaurea maculosa subsp. maculosa

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 : 278

(a) Subsp. maculosa ( C. stoebe subsp. maculosa (Lam.) Hayek ): Leaves with arachnoid indumentum. Involucre 8-13 mm in diameter, ovoid, rounded at base. Appendages with apical mucro up to 0-5 mm, the fimbriae 1 -5-2 mm. Achenes 3-3-5 mm; pappus c. 1 mm. Throughout the range of the species.