Laburnum anagyroides, Medicus

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 : 86

1. L. anagyroides Medicus , Vorl. Churpf. Phys.-Ökon. Ges. 2: 363 (1787)

(L. vulgare J. Presi , Cytisus laburnum L. ).

Shrub or small tree up to 7 m. Twigs greyish-green, appressed-pubescent. Leaflets 3-8 cm, elliptical to elliptic-obovate, usually obtuse and shortly mucronate, greyish-green, appressed-pubescent beneath when young. Racemes 10-30 cm, lax. Corolla c. 2 cm, goldenyellow. Legume 4-6 cm, appressed-pubescent when young, subglabrous at maturity; upper suture unwinged. Seeds black. Woods and scrub. Mountains o f S.C. Europe and Italy, extending to E. France and W. Jugoslavia. Frequently cultivatedfor ornament and sometimes naturalized. Au Cz G a Ge He Hu It Ju Rm [Br Co Hb].

Often divided on the basis of small differences in the calyx, corolla and inflorescence into geographical variants treated as subspecies, but many transitions occur between them.