Herbs, annual, 1-1.5 m tall. Stems terete, densely pubescent. Stipules filiform, caducous. Leaves simple; petiole short; leaf blade obovate to ovate-oblong, 3-5 × 1.5-3 cm, thickly papery, both surfaces densely rusty pilose, veins abaxially raised, base cuneate, apex obtuse to acuminate and mucronate. Racemes terminal, congested and headlike, many flowered; bracts ovate-triangular, 6-7 mm. Pedicel ca. 1 mm; bracteoles inserted at base of calyx tube, similar to bracts. Calyx 2-lipped, 8-10 mm, divided for ca. 1/2 its length; lobes lanceolate. Corolla yellow; standard oblong, ca. 5 mm, base with 2 appendages, apex obtuse to retuse; wings narrowly elliptic, ± as long as standard; keel slightly rounded, narrowed apically from middle and extended into a long beak. Legume ovoid, 5-7 mm in diam., included in calyx, 6-8-seeded, glabrous. Fl. Oct-Nov, fr. Dec-Feb.
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