Glabrous. Leaves opposite; lamina obovate, 2.5-5 by 1.5-3 cm, shortly cuneate to truncate at the base to a petiole mostly 3-5 mm long, rounded at the apex, thick, dull on both sides; venation indistinct. Inflorescencess at the nodes, pedunculate 2-to 5-rayed umbels of triads with the central flowers sessile; peduncle (3-)6-18(-22) mm long; rays 3-6 mm long; pedicels of the lateral flowers 1-2 mm long. Corolla in mature bud 4-merous, 28-30 mm long, inflated at the base, clavate and obtuse at the apex, yellowish green below and red above. Anther c. 4 mm long, transversely septate, slightly longer than the free part of the filament.