Cytisus scoparius subsp. scoparius

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 : 89

(a) Subsp. scoparius :

Branches erect or ascending, 150— 200(-250) cm; leaves and young twigs glabrous or sparsely sericeous. In = 46. Woods, heaths, dunes and mountain slopes; usually calcifuge. Throughout the range o f the species.