Centaurea aplolepa subsp. maremmana

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 : 281

(e) Subsp. maremmana (Fiori) Dostál, loc. cit. (1976)

(C. paniculata var. aetalia forma maremmana Fiori ):

Leaves glabrous; lower pinnatisect with filiform segments. Involucre 6-8 x 4-5 mm, ovoid-oblong; appendages very narrowly decurrent, denticulate. Achenes black; pappus absent. W. Italy (prov. Livorno).