Lapsana communis subsp. communis

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 : 344

(a) Subsp. communis :

Annual; stem up to 125 cm, slender to robust, usually with eglandular hairs at the base. Leaves ovate to lyrate-pinnatifid, the lateral segments (if developed) not as wide as the terminal. Peduncles slender, usually more than twice as long as involucre. Involucre 5-7(-8) mm. Ligules up to Ц times as long as involucre. 2n = 14, 16. Throughout the range of the species except perhaps S.E. Europe.