Descripcion

Subshrub erect, stems few branched or branched, pilose to pubescent, indumentum white to light yellow, with yellow vesicular glands, but lacking bulbous-based trichomes. Stipules 2–3 × 0.5–2 mm, free, persistent to falling late, lanceolate, externally pubescent with yellow vesicular glands, but lacking bulbous-based trichomes. Leaves trifoliolate; petiole 0.5–1.2 cm long; leaf rachis 0.4–0.7 cm long; stipels absent; leaflets 1.7–5.6 × 0.3–1.4 cm, narrowly lanceolate to linear, surface not bullate, attenuate to acuminate at apex, acute at base, margin entire, pubescent to tomentose, with yellow vesicular glands on both surfaces. Inflorescences terminal or axillary, racemose, 3.4–8.7 cm long, manyflowered, equaling or exceeding the length of the subtending leaf; bracts caducous; pedicels 1.5–2 mm long. Flowers 7–9 mm long excluding the pedicel; calyx 7.6–9.4 mm long, pilose to pubescent with yellow vesicular glands, but lacking bulbous-based trichomes, lobes lanceolate, all of them equaling or exceeding the corolla in length; standard petal 6–8 × 3–5 mm, elliptical or oblong, emarginate or rounded at apex, glabrous, lacking vesicular glands and bulbous-based trichomes, claw 1–2 mm long, auricle ca. 0.5 mm long; wing petals 5–7.5 × 1–1.5 mm, oblong, claw 1–2 mm long, auricle ca. 0.5 mm long; keel petals 6–9 × 1.5–2.5 mm, falcate, claw 1.5–2.5 mm long; stamens 6–10 mm long; ovary 2.9–4.1 mm long, densely pubescent, with yellow vesicular glands. Fruits 1.1–1.9 × 0.5–0.6 cm, brown, without constrictions between the seeds, oblong or elliptical, pilose to pubescent, with a few yellow vesicular glands and bulbous-based trichomes. Seeds 2–3 × 2–3 mm, suborbicular, unicolored, brown to black.