Shrub or tree to 7 m tall; twigs glabrous. Leaves variable in size, 5-15 mm long, elliptic or ovate, apically acute or acuminate, basally obtuse, margins slightly revolute, the venation obscure, veins few, 5-6 on each side of the midvein and almost perpendicular to it, upper surface often drying dark; petioles to 1.5 cm, stout, drying black; minor leaves wanting. Inflorescences numerous, scattered along the stems, axillary or arising from enlarged leaf scars, sub-umbellate at the end of short, slender glabrate peduncles, 15 mm long; pedicels short or wanting, the bracteoles linear-lanceolate, 4 mm long. Flowers with the calyx 1.5-3 mm long, tubular, puberulent outside, glabrous within, the tube contracted above the ovary, strongly costate to almost ecostate, irregularly 2-5-lobed, the lobes puberulent; corolla tube 12-14 mm long, slender, glabrous inside and out, expanded near the apex, the lobes 4 mm long, narrowly obtuse; stamens unequal, the filaments 1.5 mm free, straight, glabrous, unappendaged. Fruit (Francey) oblong, green, 9 mm long.