Shrubs 2-3 m, densely rusty villous. Branchlets terete. Leaves opposite, 3-foliolate, rarely simple; petiole 1-10 mm; leaflet blade ovate or elliptic, membranous or papery, appressed villous, especially denser along veins abaxially; terminal leaflet with petiolule 1-6 mm, 4-10.5 × 3-5.5 cm, base rounded-truncate, apex acute to acuminate, rarely obtuse, primary veins 3 or 4 on each side of midrib; lateral ones with short petiolule or sessile, 0.5-1.8 cm × 2-7 mm, base broadly cuneate or rounded, sometimes oblique, apex acute or obtuse, veins obscure. Cymes terminal or axillary, many flowered, congested; bracts leafy at base of cymes. Pedicel 0-2 mm. Calyx tomentose; tube 2-2.5 mm; lobes 5, subulate-linear, 1.5-2.5 mm. Corolla white; tube 2-3 cm; lobes 6-8, narrowly lanceolate, 1-1.2 cm. Fruit not seen. Fl. Aug-Sep.
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