Sonchus maritimus, L.

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 : 327

4. S. maritimus L. , Syst. Nat. ed. 10,2:1192 (1759).

Rhizomatous perennial; stem 15-60 cm, not or sparingly branched. Lower leaves glabrous, linear, entire to dentate, the upper slightly tomentose beneath when young, linear to oblong, undivided or rarely pinnatisect, with denticulate margins; auricles rounded, often dentate. Base of capitula and upper part of peduncles often white-tomentose, eglandular. Involucral bracts c. 27. Ligules much longer than corolla-tube. Achenes 2-2-3 x 1-1-6 mm, oblong to elliptical, weakly rugose between the ribs or smooth, with wide margin; pappus 5-5-9 mm, usually deciduous. 2л = 18. S. & W. Europe, northwards to N. W. France and eastwards to Albania. Al BI Co Ga Hs It Ju Lu Sa Si.