Woody, strongly spinescent shrublet up to 0.6 m high. Leaves stipulate; leaflets oblong to broadly obovate, (3-)5-9 x 2-4 mm, glabrous, apex somewhat mucronate to emarginate; petiole 2-5 mm long; stipules semi-cordate to auriculate, 1-4 x 1-2 mm. Inflorescence slender, terminal, 40-60 mm long, many-flowered raceme (10-16 flowers); flowers 7-10 mm long; bracts ovate-lanceolate, 2-3 x 0.5-1.0 mm; bracteoles narrowly ovate to lanceolate, 2-3 x 0.5-0.7 mm. Calyx shortly bilabiate, glandular with sessile glands, very sparsely hairy; upper lobes acute, 5-6 mm long, apices obtuse, upper sinus 2-3 mm deep; lower lobes acute, 6-7 mm long, apices obtuse, lower sinuses 0.2-1.0 mm deep. Corolla yellow; standard suborbicular, 6-8 x 4-5 mm, with well-developed, channelled claw, 2-3 mm long; wing petals oblong, sculptured, 7-8 x 2-3 mm, with linear claw 3-4 mm long; keel petals shortly half-oblong, apically rounded, 3-4 x 2-3 mm, with linear claw 3-4 mm long. Androecium monadelphous, split on its upper side, consisting of four long, basifixed anthers and six short, dorsifixed anthers (alternating with the carinal, intermediate one). Gynoecium narrowly oblong, 3.0-3.5 mm long, hairy, with 4 or 5 ovules; style curved, 3-4 mm long. Fruit broadly falcate, strongly compressed, 12-18 x 2-4 mm, without glands, almost glabrous, surface distinctly shiny, 2-4-seeded; seeds discoid, light brown, 2.3-2.5 mm diam. (side view).
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Woody, strongly spinescent perennial shrublet, up to 0.6 m high. Leaves stipulate; leaflets oblong to broadly ovate, (3-)5-9 x 2-4 mm, glabrous, apex somewhat mucronate to emarginate; petiole 2-5 mm long; stipules semi-cordate to auriculate, 1-4 x 1-2 mm. Inflorescence terminal, 40-60 mm long, with (2-)4-6(-12) flowers; flowers 7-10 mm long; bracts ovate-lanceolate, 2-3 x 0.5-1.0 mm; bracteoles narrowly ovate to lanceolate, 2-3 x 0.5-0.7 mm. Calyx shortly bilabiate, with sessile glands, very sparsely hairy; upper lobes acute; upper lip 6 mm long, the apices obtuse, upper sinus 2-3 mm deep; lateral sinus 2.5-5.0 mm deep; lower lobes acute; lower lip 67 mm long, the apices obtuse, lower sinuses 0.2-1.0 mm deep. Corolla yellow; standard suborbicular, dorsal side ± glabrous, 8 x 4-5 mm, with a well-developed, channelled claw 2-3 mm long; wing petals oblong, sculptured, 7-8 x 2-3 mm, with a linear claw 3-4 mm long; keel petals shorter than the wing petals, 3-4 x 2-3 mm, with a linear claw 3-4 mm long. Gynoecium narrowly oblong, glandular and hairy. Fruit narrowly oblong, falcate, compressed, 12-18 x 2-4 mm almost glabrous, shiny, 2-4-seeded; seeds transversely oblong to round, 2.3-2.5 mm, light brown.