Lupinus arboreus, Sims

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 : 106

10. L. arboreus Sims , Bot. Mag. 18: t. 682 (1803).

Muchbranched shrub 100-300 cm. Leaflets 5-12, 20-60 x 5—10 mm, obovate-oblong, mucronate, strigose beneath, strigose or glabrous above; stipules subulate. Racemes 10-30 cm, lax; flowers alternate or subverticillate, scented; peduncle 4-10 cm. Upper lip of calyx emarginate, the lower entire. Corolla 14-17 mm, usually yellow, sometimes white, purple to blue or variegated. Legume 40-80 mm, strigose, brown. Seeds 8-12, 4-5 mm, ellipsoid, dark brown, more or less mottled, with a pair of spots near micropyle. Naturalized near the sea in Britain and Ireland. [Br Hb.] ( California .)