Subshrub, up to 0.5(0.8) m in height, unarmed, deciduous, hermaphrodite, with upright stems and hemispherical in shape. Stems and old branches brownish bark, fissured longitudinally. Young branchlets with 5 triangular ribs, acute, green, from glabrescent to hairy. Leaves all trifoliolate, with stipules poorly differentiated. Petiole up to 3mm. Leaflets 3-10 \u00d7 1.2-1.7 mm, from elliptic to oblanceolate, with \u00b1 involute margins, \u00b1 adpressed-hairy on both sides. Flowers solitary or more frequently arranged in dense groups in of 2-12, on a pedicel of 2-5 mm, with a foliaceous bracteole halfway. Calyx 3-8 mm, campanulate, membranous, green at first then brown-blackish, \u00b1 hairy, bilabiate, with slightly dentate lips: the upper lip with 2 teeth and the lower lip with 3. Corolla 11-20 mm, papilionoid, yellow, glabrous; with elliptic standard, emarginate, the same length or slightly longer than the wings and keel; the keel with the tip slightly curved upwards. Androecium monadelphous, with 10 stamens. Ovary and syle glabrous, the style curved upwards. Pod 10-16 \u00d7 5.5-8 mm, obovate-rhomboid, compressed, semi-enclosed by the calyx and marcescent corolla; at first green, then blackish, \u00b1 hairy. Seeds 1-2, ovoid, compressed, smooth, from brownish to black.<\/p>\n","protected":false},"featured_media":0,"template":"","class_list":["post-12381","species","type-species","status-publish","hentry"],"acf":[],"yoast_head":"\n