Ascending herb to 50 cm tall, with stock, with glandular hairs purplish brown below head. Leaves sessile, linear to elliptic-obovate, dentate or entire; lamina 6-9 cm long, 15-20 mm wide. Flowers in thyrses to 35 cm long; bracts leaf-like; peduncle 10-40 mm long; bracteoles linear-deltoid, 5-20 mm long; pedicel 5-10 mm long. Sepals lanceolate, 3-4 mm long. Corolla to 20 mm long, hairy inside, with prominent enations, auriculate; abaxial lobes 6-7 mm long; wings c. 2 mm wide. Indusium ±square, 2.5-3 mm long. Ovules to 50. Fruit ovoid, 9-12 mm long; valves entire. Seeds flat, elliptic, 1.5 mm long, very dark brown, colliculate.
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