Lathyrus pannonicus subsp. pannonicus

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 : 139

(a) Subsp. pannonicus :

Stems up to 50 cm, not winged; tubers 2-5 cm, oblong-ovoid. Leaflets 35-60 x 2-4 mm, linear or linearlanceolate. Peduncles 6-9 cm, usually exceeding the subtending leaf. Calyx-teeth ciliate, the lowest c. i as long as tube. Damp pastures. E.C. Europe and N. W. part of Balkan peninsula.