Glabrous. Leaves opposite; lamina ovate to obovate, 3-8 by 2-5 cm, attenuate to shortly cuneate at the base to a petiole 2-7 mm long, obtuse or rounded at the apex, dull on both sides but slightly darker above; venation pinnate with the midrib prominent below and the other veins obscure. Inflorescences at the nodes, a 6-flowered head of 2 sessile triads on a peduncle 5-11 mm long. Corolla in mature bud 5-merous, 20-23 mm long, rather slender, not clavate, acute at the apex, red. Anther c. 2 mm long, about half as long as the free part of the filament.
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