Senecio sylvaticus, 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 : 204

62. S. sylvaticus L. , Sp. Pl. 868 (1753).

Erect annual up to 70 cm, with sulcate stem and ascending branches, usually somewhat fioccose, glandular-hairy at least in inflorescence but not viscid. Leaves irregularly pinnatifid; basal and lower cauline leaves oblanceolate in outline, shortly petiolate; middle and upper cauline leaves oblong in outline, auriculate-amplexicaul. Capitula numerous, 4-6 mm in diameter, in a large terminal corymb. Involucralbracts 7-10 mm, concolorous or slightly dark-tipped, glandular-hairy; supplementary bracts 2 or 3, 1-2 mm. Ligules 8-15, very short and revolute immediately after anthesis, yellow. Achenes c. 2-5 mm, rather sparsely subappressed-hairy. 2/7 = 40. Wood-margins and disturbed ground, especially on sandy soils. From C. Fennoscandia and N.C. Russia southwards to C. Portugal, C. Italy and Bulgaria. Au Be Br Bu Cz Da Fe Ga Ge Hb He Ho HsHuItJuLuNoPoRmRs (B, C, W) Su.