Much-branched, evergreen tree, sometimes a shrub, up to 9(–10) m tall, with short trunk; bark brown, soft; crown dense, rounded; young branches glabrous or hairy, conspicuously angled and ribbed.
Leaves decussately opposite, simple and entire; stipules absent; petiole 1–6(–9) mm long; blade elliptical to ovate or broadly ovate, 2–10 cm × 1.5–6.5 cm, base cuneate or rounded, apex acute, obtuse or rounded, with hard mucro, leathery, glossy, glabrous or shortly hairy, pinnately veined, lateral veins obscure, with looping connections.
Flowers bisexual, regular, 5-merous, fragrant; sepals free, ovate to lanceolate, (1–)1.5 –2.5 mm long, apex acuminate to acute, shortly hairy or glabrous outside, ciliate; corolla tube cylindrical, 8–12.5 mm long, glabrous or shortly hairy outside, inside sparsely hairy in the upper half and wrinkled below, pink or red, lobes ovate, 2.5–5 mm long, apex acute, glabrous above, glabrous to shortly hairy below, ciliate, white; stamens inserted at 7–10 mm from the base of the corolla tube, slightly exserted; ovary superior, ellipsoid, 2-celled, style slender, 7–10 mm long, stigma minutely bifid.
Fruit an ellipsoid berry 1–2.5 cm long, purple when ripe, pulp green to deep red, 1–2-seeded.
Seeds ellipsoid, plano-convex, 6–13 mm long, smooth, glabrous.