Erect shrub to 1 m tall, viscid, becoming varnished, glabrous. Leaves shortly petiolate, narrowly elliptic to oblanceolate, entire to dentate; lamina 1.5-4 cm long, 5-20 mm wide. Flowers in thyrses or racemes to 20 cm long; bracts leaf-like; peduncle 3-7 mm long; bracteoles linear, 2-5 mm long; pedicel 3-8 mm long, articulate. Sepals linear, 6-10 mm long. Corolla 12-15 mm long, sparsely pubescent inside, viscid outside, not auriculate; abaxial lobes 6-7 mm long; wings triangular, to 3 mm wide. Indusium broadly oblong. Ovules 30-40. Fruit obovoid to cylindrical, c. 7-9 mm long; valves entire. Seeds elliptic, c. 2.5 mm long, pale yellow-brown.
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