Lathyrus niger, (L.) Bernh.

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 : 138

3. L. niger (L.) Bernh. , Syst. Verz. Erfurt 248 (1800).

Glabrous or sparsely pubescent perennial; stem 15-90 cm, not winged. Leaves without tendril; leaflets 3—6(— 11) pairs, lanceolate to elliptical, obtuse, mucronate, more or less pinnately veined; stipules 4-10 x 1-2 mm, linear, semi-sagittate. Racemes 2- to 10-flowered. Calyx-teeth unequal; corolla 10-15 mm, purple becoming blue. Legume 35-60x 4-6 mm, black, glabrous. Seeds 6-10, smooth; hilum I of the circumference. Europe except for most of the northeast, the extreme south and many islands. Al Au *Be *Br Bu?Co Cz Da Fe Ga Ge Gr He *Ho Hs Hu It Ju Lu No Po Rm Rs (B, C, W, K, E)?Si Su Tu.