Leaf blades 3–10 × 1.3–6 cm, ovate to sometimes obovate, occasionally oblanceolate to narrowly oblanceolate, rounded to obtuse at apex, cuneate at base, coriaceous, dark green and shiny above, paler beneath, with recurved margins; lateral nerves in c. 5 main pairs; tertiary nerves rather coarsely reticulate, not raised above, usually raised and/or drying dark below; domatia as conspicuous depressions lined with hairs often prominent on upper surface; petiole 0.4–1.4 cm long; stipules brownish when dry, 0.5–1 cm long, ovate to triangular, caducous.
Inflorescences terminal, sessile or pedunculate (i.e. supporting leaves small or fallen), congested, corymbose; primary inflorescence branches 3 or sometimes 1 if lateral pair absent, 1.2–2.5 cm long; pedicels absent or very short; bracteoles subtending the calyx tube, opposite with 2 or 4 small scale-like to shortly subulate lobes.
Small tree or shrub, 1.0-9.6 m high. Leaves distinctly petiolate, domatia conspicuous, blades rounded to obtuse at apex, petioles 4-14 mm long. Inflorescence terminal, frequently with additional pairs of axillary inflorescences arising from next 1 or 2 (or 3) nodes down. Flowers whitish.
Corolla whitish; tube narrowly funnel-shaped, 3–4 mm long, glabrous outside, sparsely hairy inside; lobes 1.75–3 × c. 1 mm, ± oblong, obtuse.
Seed blackish-brown, spherical, 4 mm in diameter, finely reticulate; hilar cavity small, irregular; endosperm deeply ruminate.
Shrub or small tree 1–9.6 m tall, glabrous; young branches square in section, covered with off-white to very pale grey bark.
Calyx tube not exceeding 0.75(1) mm long; limb up to 0.5 mm long, divided almost to base into rounded teeth.
Fruit black when dry, 5–7 × 4–6 mm, spherical or slightly longer than wide, 1-seeded; calyx limb persistent.
Placenta small, bearing 2–3 pendulous ovules.