Centaurea alba subsp. vandasii, (Velen.) 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 : 289

(p) Subsp. vandasii (Velen.) Dostál , loc. cit. (1976)

( C. vandasii Velen. ):

Biennial. Stems 30-50 cm, paniculately much-branched from the base with erect branches. Leaves greyish-tomentose or -puberulent; lower 2- to 3-pinnatisect, with small, linear, lobed segments. Involucre 10-12 mm in diameter, ovoid-conical or -globose; appendages small, not covering bracts, orbicular, brownish-black, with broadly ovate, blackish central spot, the margin hyaline-scarious, denticulate, slightly lacerate, the apex deeply emarginate, mucronate. Florets pink. Achenes c. 3-5 mm; pappus 0-5-1 -5 mm. Mountain rocks. • S. Bulgaria (Rodopi).