Leaves black-brown when dry; blades 2.5–13.5 × 1–6 cm, acute to obtuse at apex, acute or sometimes rounded and often slightly unequal at base, subcoriaceous, dull above; lateral nerves in (5)6 main pairs; tertiary nerves obscure; domatia present as inconspicuous tufts of hair in the nerve axils, or sometimes absent; petiole 2–10 mm long; stipules 5–10 mm long, triangular to triangular-ovate, caducous.
Flowers unisexual, or ?sometimes hermaphrodite, 4-merous, borne in pedunculate umbels; functionally male flowers 15–30, functionally female flowers perhaps fewer; peduncles 4–7 mm long; pedicels 3–4 mm long; glabrescent to pubescent; bracts 5–7 mm long, ovate, acuminate, pubescent near the base inside.
Calyx tube in functionally male or hermaphrodite flowers, ± globose, up to 1 mm in diameter, possibly ribbed in functionally female flowers judging from very immature fruit; limb a reduced rim, truncate or bearing unequal lobes up to 1 mm long.
Fruits usually borne in umbels of 3–10, 7–8 × 7–13 mm, distinctly bilobed, with a small lobe on either side of each lobe (tending to disappear on drying), distinctly indented at the apex.
Corolla cream or greenish-white; tube 2 mm long, congested with crisped hairs at throat; lobes 2–2.5 × 1–1.25mm, ovate-triangular, shortly apiculate.
Shrub or small tree 3–8 m tall, glabrous; young stems square, very slightly winged, covered with grey or fawn-coloured bark.
Pyrene 6 × 3.25 mm, narrowly obovoid, with a shallow wing around the apex, scarcely rugulose.
Pollen presenter ± globose, c. 0.5 mm in diameter.
Style very slightly longer than corolla tube.