Shrub up to 1.5(2) m in height, spiny, hermaphrodite, deciduous, very ramose, sometimes intricate, with extended branches. Stems and old branches with greyish bark. Young branchlets with 13-16 longitudinal ribs in T-shape, greenish-greyish, densely adpressed-sericeous. Leaves alternate, trifoliolate, without stipules, petiolate, with petiole 6-14 mm and leaflets 5-18 \u00d7 3.5-7.5 mm, obovate, obtuse, sometimes mucronate or emarginate at the apex, attenuated at the base, with entire margin, sericeous on both sides when young, then glabrescent on the upper side. Flowers usually in dense racemes, terminal, with a sharp main axis ressembling a spine; or in axillary glomeruli of 3-5 flowers, pedicellate, with sericeous petiole, with 3 bracteoles fused into a tripartite or trifid structure. Calyx 2.1-3.6 mm, subcylindrical, greenish-yellowish, sericeous. Corolla 14-16 mm, papilionoid, yellow, with ovate standard, wings subequal to the standard or longer, and shorter keel. Androecium monadelphous, with 10 stamens. Ovary and style sericeous. Pod 18-46 \u00d7 5-8 mm, oblong or linear-oblong, straight or slightly curved, compressed, wingless, green at first, then blackish when mature, dehiscent. Seeds 1-7, 3-3.8 mm, ovoid, compressed, yellowish-brown, smooth.<\/p>\n","protected":false},"featured_media":0,"template":"","class_list":["post-12414","species","type-species","status-publish","hentry"],"acf":[],"yoast_head":"\n