Trees, to 10 m tall. Branchlets brown when dry, very slender, terete. Petiole 2-3 mm; leaf blade ovate-long lanceolate, 3-5.5 × 1-1.5 cm, leathery, abaxially with numerous small glands, adaxially olive green when dry, secondary veins numerous, ca. 1.5 mm apart, at an angle of ca. 70° from midvein, and inconspicuous on both surfaces, intramarginal veins ca. 1 mm from margin, base broadly cuneate, apex long caudate-acuminate and with a ca. 2 cm acute and curved acumen. Inflorescences terminal or axillary, cymes, ca. 1.5 cm. Flower buds shortly clavate, 7-8 mm. Hypanthium ca. 7 mm, corrugate when dry, glaucous. Calyx lobes 4 or 5, triangular, ca. 0.8 mm, apex acute. Petals white, faintly fragrant, 4 or 5, distinct, ovate, ca. 2 mm. Stamens 3-4 mm. Style ca. 5 mm. Fruit subglobose, 5-7 × 4-6 mm. Fl. May-Jun, fr. Nov.

Rain forests; 300-1100 m. Guangxi, Hainan [Vietnam].