Tree to 12 m high. Shoots and branchlets pubescent, glabrescent. Leaves: petiole 1–4 mm long; lamina ovate or elliptic, 4–13 cm long, 2–6.5 cm wide, obtuse or rounded, rarely slightly cordate at base, obtuse or rounded, sometimes acute or slightly acuminate at apex, puberulous above, pubescent below, glabrescent; secondary veins mostly 6–8 pairs. Flowers in fascicles, 1 or 2 maturing at a time; pedicel 1.5–3 cm long. Sepals ovate, 2–2.7 mm long, 1.5–1.8 mm wide, pubescent outside. Outer petals narrowly ovate, boat-shaped, 2.5–3 mm long, 0.8–1 mm wide, pubescent, green. Sepals and outer petals falling before anthesis. Inner petals oblong to narrowly ovate, 13–25 mm long, 4–6 mm wide, acute, greenish yellow, sparsely pubescent outside, sparsely puberulous inside. Stamens c. 12, 0.7–0.8 mm long. Carpels 11 or 12; ovary c. 0.7 mm long, glabrous; ovules 2 or 3. Apocarps subglobular, 9–15 mm long, 10–14 mm wide; stipe 5–7 mm long. Seeds 1 or 2.
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