Shrub or small tree to 3 m high. Shoots and branchlets appressed-pubescent, glabrescent. Leaves: petiole 2–3 mm long; lamina narrowly ovate or lanceolate, 6.5–17.5 cm long, 2–5.5 cm wide, obtuse or rounded at base, acuminate at apex, glabrous above, glabrescent below; secondary veins 15–20 pairs. Flowers solitary, axillary Pedicel 2–5 mm long, sparsely appressed-pubescent; bracts basal, depressed-ovate, 1–1.5 mm long. Sepals depressed-ovate, 3.5–4 mm long, 4.5-5 mm wide, appressed-pubescent. Petals pale yellow. Outer petals ovate, nearly flat, spreading, 12–18 mm long, 6.5–9 mm wide, acute, pubescent. Inner petals loosely connivent at maturity, narrowly ovate, incurved near base, 9.5–16 mm long, 5.5–7 mm wide, slightly ridged outside, puberulous except inside near base. Stamens 70–80, c. 1.7 mm long. Carpels 4–9; ovary 1.8 mm long; ovules 6. Apocarps obloid or ellipsoidal with an adaxial ridge, warted and wrinkled, 1.5–2.5 cm long, 1–1.3 cm wide, puberulous, orange; stipe c. 1 mm long. Seeds 1–4.
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