Glabrous. Leaves opposite; lamina narrowly ovate to ovate, 15-23 by 7-12 cm, cordate at the base, sessile, acuminate and acute at the apex, dull and somewhat glaucous above, dull below; venation pinnate with the midrib prominent below and the main laterals distinct on both sides, with the leaf upper surface bullate between them. Inflorescences at the nodes, a raceme of many opposite densely crowded pairs of triads with all flowers sessile; axis 15-30 mm long; peduncles of the triads 1-2 mm long, secund. Corolla in mature bud 6-merous, 25-28 mm long, slightly inflated at the base, slender, weakly clavate and obtuse at the apex, mostly red below and sometimes white and grey above; petals in the open flower coherent in the lower 1 mm. Anther 3-5 mm long, acute, subsessile.
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