Descripcion

Subshrub prostrate to twining, stems branched, pilose to pubescent, white, lacking vesicular glands and bulbous-based trichomes. Stipules 2–4 × 0.5–1 mm, free, persistent, narrowly lanceolate to lanceolate, externally pubescent with yellow vesicular glands, but lacking bulbous-based trichomes. Leaves trifoliolate; petiole 0.5–2.8 cm long; leaf rachis 0.5–1.5 cm long; stipels caducous; leaflets 0.9–2.3 × 0.4–1.5 cm, lanceolate or ovate, surface not bullate, cuneate to acuminate at apex, rounded at base, margin entire, pilose, with yellow vesicular glands on both surfaces. Inflorescences axillary, fasciculate, 0.3–1.8 cm long, bearing 1–5 flowers, not exceeding the length of the subtending leaf; bracts caducous; pedicels 7–11 mm long. Flowers 7–9 mm long excluding the pedicel; calyx 5–7 mm long, pubescent, with yellow vesicular glands, but lacking bulbous-based trichomes, lobes lanceolate, not exceeding the corolla in length; standard petal 6–8 × 3–4 mm, obovate to oblong, emarginate or rounded at apex, pilose to pubescent, with yellow vesicular glands, but lacking bulbous-based trichomes, claw 1–1.5 mm long, auricle ca. 0.5 mm long; wing petals 6–7 × 0.5–1 mm, oblong, claw ca. 1–2 mm long, auricle ca. 0.5 mm long; keel petals 6–7.5 × 1–2.5 mm, falcate, claw 1–2 mm long; stamens 4–9 mm long; ovary 2.5–3.2 mm long, pubescent, with yellow vesicular glands. Fruits 1.8–2.6 × 0.5–0.8 cm, brownish, without constrictions between the seeds, falcate, puberulous, with yellow vesicular glands, but lacking bulbous-based trichomes. Seeds 2.8–3.8 × 3–4 mm, suborbicular, unicolored, brownish to black.