Deciduous shrubs to small trees, 2-6 m tall; branches and twigs sturdy, gray or brown, terete, glabrous. Petiole 3-5 mm; leaf blade thinly leathery or leathery, oblong-elliptic, 6-12 × 1.5-2 cm, base and apex acuminate or acute, margin finely crenulate to nearly entire; lateral veins and veinlets curved or bent, even in tortuous form, prominent on both surfaces. Peduncle 2-4 cm, with few flowers, rarely 7. Flowers 4-merous, 6-8 mm in diam.; petals light yellow, nearly rotund. Capsule globose or subglobose, slightly grooved, 8-10 cm in diam., pink-brown to yellow-brown, 4-lobed. Seeds yellow-brown; aril orange-red. Fl. May-Jul, fr. Aug-Sep.