Trees evergreen, to 27 m tall, to 60 cm d.b.h. Branches glabrous; branchlets yellow-brown puberulent. Petiole 1-3 cm, ± slender, brown puberulent, glabrescent, swollen at end; leaf blade lanceolate or oblanceolate, rarely narrowly oblong, 7-14 × 2-3.5 cm, leathery, puberulent or at least on veins at first, abaxially pubescent on veins and in vein axils in mature leaves, adaxially glabrescent, base narrow, obtuse, margin entire, usually shrunken when dry, apex acuminate. Flowers axillary in upper twigs, solitary or fascicled. Pedicel 1-2 cm, slender, puberulent. Sepals 4 or 5, ovate-orbicular, unequal in size, 4-5 × 3-4 mm, puberulent. Petals 4 or 5, 6-7 mm, unequal in width, puberulent, incised at apices. Stamens numerous, 6-7 mm, sometimes shorter; filaments 3-4 mm; anthers pubescent. Ovary brown pubescent; style slender. Capsule globose, 1.5-2 cm, 3-or 4-valved; valves thin; prickles short, 1-2 mm, puberulent. Seed black, ca. 1 cm; aril yellowish, covering 1/2 of seed. Fl. Apr-May, fr. Sep.