Crepis vesicaria subsp. vesicaria

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 : 357

(a) Subsp. vesicaria :

Ultimate branches erect before anthesis. Involucre 8-14 x 4-10 mm, glabrous or sparsely pubescent near apex, sometimes with longer eglandular hairs; outer bracts broadly ovate, imbricate, usually with wide scarious margins, as long as the linear-lanceolate inner. Ligules sometimes entirely red. Achenes (4-)5-7(-8) mm, usually of 2 kinds: marginal attenuate or shortly beaked (sometimes absent); inner with a stout beak equal to or shorter than the body, 10- to 12- ribbed. 2/2 = 8, 16. Mediterranean region.