Lotus azoricus, P. W. Ball

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 : 176

28. L. azoricus P. W. Ball , Feddes Repert. 79: 40 (1968)

(£. macranthus auct. azor., non Lowe). Diffuse annual or perennial 20-40 cm, with dense, appressed, silvery indumentum. Upper 3 leaflets 5-10 x 2-6 mm, obovate, basal 2-5-8 x 2-5-6 mm, suborbicular or ovate-orbicular. Peduncles 1-flowered, shorter than leaves, with a trifoliolate bract inserted near the middle or towards the apex. Calyx-teeth slightly unequal, the upper 2 longer than the lower 3 and curved upwards, all longer than tube, Corolla 20-25 mm, purple or yellow and purple; standard shorter than the long-beaked keel. Legume 40—55 x 3-4 mm, straight. • Açores (Santa Maria and Säo Miguel). Az.