Lupinus micranthus, Guss.

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 : 105

4. L. micranthus Guss. , FI. Sic. Prodr. 2:400 (1828)

(L. hirsutus sensu L. 1763 pro parte, et auct., non L. 1753).

Brown-hirsute annual 10-40 cm. Leaflets 15-70x 5-15 mm, obovate-cuneate to obovate-oblong, mucronate, sparsely hirsute; stipules linearsubulate. Racemes up to 12 cm; lower flowers alternate, the upper irregularly verticillate; peduncle up to 1-5 cm. Upper lip of calyx 6 mm, 2-partite, the lower 10-12 mm, deeply 3-dentate. Corolla 10-14 mm, blue, the standard white in the middle and the keel blackish-violet at apex. Legume 30-50 x 10-12 mm, hirsute, redbrown. Seeds 3-4, 5-8 mm, orbicular-quadrangular, compressed, smooth and dull, pinkish-grey to brown, with dark veins and dots. Acid soils. Mediterranean region, C. & S. Portugal. Al BI Co Cr Ga G r Hs It Ju Lu Sa Si Tu.