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Leaves glabrous, often turning blackish when dry; blades 2–11 × 1–6 cm, narrowly to broadly elliptic or narrowly obovate to obovate, obtuse to acute or acuminate at apex, acute to cuneate or sometimes obtuse at base, subcoriaceous to coriaceous, glabrous or rarely pubescent beneath, moderately shiny to shiny above; domatia present as glabrous to pubescent pits, sometimes visible as blisters on upper surface; petioles 1–10 mm long; stipules 1–6 mm long, triangular, acuminate, but acumen not or scarcely decurrent, eventually caducous.
Corolla cream-coloured with scattered red to purple spots at the throat, usually extending to base of lobes, glabrous outside; tube (3)4.5–8 cm long, 1–3 cm wide at top; gradually funnel-shaped or narrowly cylindrical at base then abruptly funnel-shaped to campanulate above; lobes 1.3–3.5 × 0.7–2 cm, ovate to broadly lanceolate, acute to subacuminate or sometimes acuminate, overlapping to the right in bud.
An evergreen shrub. It can be a small tree up to 8 m high. The bark is smooth and dark brown. The leaves are dark green and leathery. The flowers have yellow lobes with purple stripes that are white inside. They have a sweet scent. The fruit are round and 6.5 cm across.
Calyx glabrous; tube 3–7 mm long; limb-tube 4–11 mm long, sometimes slightly 5-ribbed, often splitting, truncate or lobed; lobes up to 15(18) mm long, filiform to subulate or occasionally linear, triangular at the base and not clearly separated by sinuses.
Fruit 3–6.2 cm in diameter, spherical or sometimes slightly pear-shaped, glabrous, with a pentangular scar at apex, green with pale green spots, blackish when dry.
Shrub or small tree 3.4–8 m tall; young branches glabrous, often with grey or fawn bark which flakes off when older to reveal the rusty underlayer.
Flowers solitary; peduncle very abbreviated; pedicel 1–2 mm long; bracteoles resembling reduced stipules.
Pollen presenter 1.3–1.7 × c. 0.3 cm, exserted.
Anthers 1.75–2.5 cm long, ± one third exserted.
Seeds 6–7 × c. 4 × 2–3 mm, brown.
Style 3–7.7 cm long.
