Leaves 6.5–19 × 2.3–7 cm, oblong-elliptic, elliptic or sometimes oblanceolate to narrowly obovate, acute or rounded then abruptly acuminate at the apex with the acumen 0.8–4 × 0.1–0.45 cm, acute to obtuse or sometimes cuneate at the base, commonly drying brownish-black, glabrous; tertiary nerves reticulate, raised on both surfaces; petioles 5–10 mm long.
Inflorescence stalks 2–4 mm long, up to 7 mm long in fruiting stage; cupules (2)3, 1–5 mm long, usually the upper one the biggest, often provided with either linear lobes 1–5 mm long or with subfoliaceous lobes 5–17 × 2.5–4 mm.
A small tree or straggling shrub. It grows 2-8.5 m tall. The leaves are 7-22 cm long and 3-8 cm wide. The flowers are in groups of 1-3 in the axils of leaves. The fruit are 9-13 mm long by 4-12 mm wide. There are 2 seeds.
Seeds blackish, usually hemispherical, but occasionally biconvex (in case of 1-seeded fruit), 6–11 mm across, sometimes with an indistinct ovate ridge which becomes more sharply defined at the narrow (apical) end.
Corolla tube 7–14 mm long, 3–4.5 mm wide at top, 0.75–1 mm wide at base, pubescent inside; lobes 7–17 × 3–6 mm, oblong, oblong-lanceolate or occasionally narrowly ovate, acute to acuminate.
Calyx tube 1.5–2 mm long; limb-tube 2.5–7 mm long, characteristically split down one side, ± truncate or shortly and unequally toothed, glabrous and without colleters inside.
Small tree or straggling shrub with arching branches, 2–8.5 m high; young branches glabrous or puberulous; older branches covered with thin light brown shiny bark.
Stipule limb 1.5–3 mm long, light brown when mature; lobe 2–5 mm long, subulate to linear.
Pollen presenter exserted; lobes ± linear or sometimes slightly spathulate.
Fruit 9–13 × 4–12 mm, ellipsoid, green-yellow or vermilion, (1)2-seeded.
Anthers dark in colour.
Flowers 1–3 per axil.