Glabrous. Leaves opposite; lamina elliptic to broadly elliptic, 9-15 by 4-8 cm, shortly attenuate at the base to an obscure petiole 1-3 mm long, shortly acuminate and acute at the apex, dull on both sides when dry but slightly darker above; venation pinnate, faintly visible on both sides. Inflorescences at the nodes, a subsessile 6-flowered head of 2 sessile triads on a peduncle c. 0.5 mm long which is immersed in the bark. Corolla in mature bud 5-merous, 18-22 mm long, uniformly slender, mostly pink or red below and yellowish above. Anther 1.5-2 mm long, about half as long as the free part of the filament.
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