Smyrnium olusatrum, L.

Tutin, T. G., Heywood, V. H., Burges, N. A., Moore, D. M., Valentine, D. H., Walters, S. M. & Webb, D. A., 1981, Flora Europaea. Volume 2. Rosaceae to Umbelliferae, Cambridge University Press : 328

1. S. olusatrum L. , Sp. Pl. 262 (1753) .

Glabrous biennial 50- 150 cm. Stem stout, solid, becoming hollow when old; upper branches often opposite. Leaves dark green and shiny; basal c. 30 cm, triangular in outline, ternate; segments 1 - to 2-pinnate; lobes 10-60 mm, rhombic-ovate, crenate-dentate and sometimes lobed; cauline leaves smaller and less divided, with short, inflated petioles. Rays (3—)7— 15(— 18). Bracts and bracteoles few, small, sometimes 0. Fruit 7-8 mm, black. In = 22. 5. Europe, extending northwards to N. W. France; extensively naturalized in Britain and Ireland. Al Az BI Co Cr Ga Gr Hs It Ju Lu Sa Si Tu [Br Hb Ho].