Erect subshrub to c. 1.5 m high, viscid, with glandular and simple hairs. Leaves ovate to orbicular, obtuse to cordate at base, dentate; lamina 2.5-5.0 cm long, to 6 cm wide; petiole to 5 cm long. Flowers in racemes or thyrses to 25 cm long; bracts leaf-like; peduncle to 3 mm long; bracetoles linear, to 4 mm long; pedicel to 5 cm long, articulate. Sepals lanceolate, to 6 mm long. Corolla to 23 mm long, villous inside, with enations, not auriculate; abaxial lobes 8-9 mm long; wings c. 3 mm wide. Indusium depressed-obovate. Ovules 30-50. Fruit obovoid, 10-13 mm long; valves sometimes 2-fid. Seeds orbicular to elliptic, c. 3 mm long, brownish, colliculate to tuberculate.
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