Lactuca, (Cass.) C. B. Clarke

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 : 329

Sect. Mulgedium (Cass.) C. B. Clarke . Inflorescence with ascending branches and few capitula; florets numerous. Achenes oblong-elliptical, many-ribbed, slightly compressed, narrowed into a very short, concolorous beak.