Glabrous. Leaves opposite; lamina narrowly ovate to ovate, 3-8 by 1-5.5 cm, truncate to cordate at the base to a petiole 3-5 mm long, acute and often acuminate at the apex, glossy above, dull below; venation pinnate with the midrib prominent and the main laterals visible on both sides. Inflorescences at the nodes, a raceme of about 5 opposite crowded pairs of triads with the central flower sessile and the lateral flowers pedicellate; axis 5-10 mm long, subtended at the base by an involucre of a few pairs of short triangular bracts; peduncles of the triads 1.5-3 mm long, not secund; pedicels of the lateral flowers 1-1.5 mm long. Corolla in mature bud 5-merous, 16-23 mm long, very weakly inflated at the base, weakly clavate and obtuse at the apex, red; petals in the open flower coherent in the lower 3-6 mm. Anther c. 1.5 mm long, obtuse, slightly shorter than the free part of the filament.