Shrubs, ca. 2 m high. Branchlets dark yellow hairy. Leaves to 20 cm; stipules linear, ca. 10 mm, hairy; petiole hairy; leaflets 15-23, opposite, ovate-lanceolate or elliptic-lanceolate, 25-35(-50) × 10-15 mm, papery, veins obvious abaxially, base rounded or obtuse, apex mucronate. Racemes ca. 20 cm, opposite a leaf or appearing opposite. Flowers many; pedicel short, ca. 5 mm, hairy; bract similar to stipule, longer than pedicel. Calyx campanulate; teeth 5, orbicular or triangular, unequal, upper 2 nearly fused to bilabiate, brown hairy. Corolla purple-red; standard obovate-oblong or obovate-elliptic, ca. 15 mm, retuse at apex, 2-auriculate at middle, narrowing to a claw at base; wings slightly shorter than standard, falcate, unequally auriculate at base; keels ca. 13 mm, long ovate. Stamens 10, slightly fused at base. Ovary densely yellow-brown hairy; ovules 4-6. Legumes moniliform, 10-15 cm, darkly brown pilose, dehiscent along sutures. Seeds 2 or 3, long ovate, yellow-brown or brown. Fl. Mar-Jun, fr. May-Aug.
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