Scorzonera, (DC.) Boiss.

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 : 318

Sect. Podospermum (DC.) Boiss. Leaves usually 1- to 2- pinnatisect. Achenes glabrous, with smooth ribs, with a pale, tubular base c. i as long as the rest of the achene.