Robinia pseudacacia, L.

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

1. R. pseudacacia L. ,Sp.Pl. 722 (1753).

Tree up to 25 m. Leaflets 3-10 pairs, 25-45 x 12-25 mm, elliptical or ovate, glabrous or subglabrous; usually with stipular spines. Racemes 10-20 cm, many-flowered. Corolla 15-20 mm, white, the base of the standard yellow. Legume 5-10 x c. 1 cm, glabrous. Commonly planted for ornament and for stabilizing dry soil. Extensively naturalized in S. & W. Europe and more locally in C. & E. Europe. [Al Au Be Br Bu Cz Ga Ge G r He Ho Hs Hu It Ju Rm Sa Si Tu.] (C. & E. North America.) R. viscosa Vent. , Descr. Pl. Jard. Cels t. 4 (1800), from S.E. North America, is often planted in C. & S. Europe and may be locally naturalized. It is like 1 but with glandular-viscid twigs, petioles and peduncles; racemes 5-8 cm, 6- to 18-flowered; corolla purple, and legume sparsely glandular-hispid.