Crepis biennis, 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 : 350

22. C. biennis L. , Sp. Pl. 807 (1753).

Biennial; stems 20-120 cm. Leaves scabridulous with short, eglandular hairs; basal 5-25 x 1 -5-7-5 cm, oblanceolate, acute, denticulate, dentate, runcinate-pinnatifid, or pinnatisect, with triangular terminal and remote lateral lobes, narrowed into a narrowly winged petiole; lower cauline like the basal; upper cauline lanceolate to linear, sessile, pinnatifid to entire. Capitula in a simple or compound corymb. Involucre 8-13 x 5-12 mm; bracts linear-lanceolate, obtuse to acute, the outer as long as inner, more or less canescent-tomentose, sometimes silky-pubescent and often with yellow or black, simple glandular or eglandular hairs on the inner bracts, pubescent on inner face. Achenes 4-7-5 x 0-6-1 mm, yellowish to cinnamon-brown, fusiform, (10—)13- to 20-ribbed. 2« = 31, 36, 38, 39, 40. • Most of Europe except the N., S. & E. margins , but often introduced with grass-seed and doubtfully native in some regions. Al Au Be Br Bu Cz Da Ga Ge Gr He Ho Hs Hu It Ju Po Rm Rs (B, C, W) Sa Su [Fe Hb No Rs (N)].