Lathyrus vernus, (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

1. L. vernus (L.) Bernh. , Syst. Verz. Erfurt 247 (1800).

Glabrous or sparsely pubescent perennial; stem 20-40(-60) cm, not winged. Leaves without tendril; leaflets (l-)2-4 pairs, 3O-7O(-1OO) x (1-)10-30 mm, ovate or lanceolate, rarely linear, acuminate, feebly parallel-veined; stipules 10-25 x 2-8 mm, ovate-lanceolate, rarely linear, semi-sagittate. Racemes 3- to 10-flowered. Calyxteeth unequal; corolla 13-20 mm, reddish-purple, becoming blue. Legume 40-60 x 5-8 mm, brown, glabrous. Seeds 8-14, smooth; hilum I of the circumference. 2zi= 14. Most o f Europe except the islands andparts o f the south and west. Al Au Bu Cz Da Fe Ga Ge G r He Hs Hu It Ju No Po Rm Rs (N, B, C, W, K, E) Su [Be Ho].