Erect undershrub to 80 cm tall, glabrous. Leaves sessile, decurrent, lanceolate to elliptic, dentate, thick; lamina 5-10 cm long, 10-25 mm wide. Flowers in thyrses or racemes to 45 cm long; bracts linear to lanceolate, usually to 10 mm long; peduncle to 15 mm long; bracteoles similar to bracts, smaller; pedicel to 10 mm long, articulate. Sepals narrowly ovate, 4-7 mm long. Corolla 15-18 mm long, villous inside, with enations, indistinctly auriculate; abaxial lobes 7-8 mm long; wings 2-3 mm wide. Indusium depressed-obovate. Ovules c. 50. Fruit ovoid, c. 9 mm long; valves bifid. Seeds elliptic to orbicular, c. 1.8 mm long, pale brown, tuberculate-granulate.
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