Description from Flora of China
Shrubs evergreen, 1–2 m tall, sparsely branched. Twigs angled, glabrous; bud scales inconspicuous. Leaves scattered; petiole 0.5–1 cm; leaf blade ovate, broadly ovate, or suborbicular, 5–7 × 3–4.5 cm, thickly leathery, abaxially papillate, with short fulvous hairs, adaxially glabrous, secondary veins 6 or 7 pairs, ascending, slender, inconspicuous abaxially, raised adaxially, fine veins not evident, base broadly cuneate, truncate, or rounded, margin slightly revolute, entire, with 1 or 2 basal glands per side, apex abruptly caudate-acuminate. Inflorescences racemose, 2.5–4 cm, stout, angled, glabrous, 5–9-flowered; bracts caducous, lanceolate, ca. 9 mm. Pedicel ca. 3 mm, stout. Hypanthium ca. 1.5 mm; calyx lobes lanceolate, 2–2.5 mm, apex acuminate. Corolla greenish white, urceolate to campanulate, 3.5–6 mm, glabrous; lobes reflexed at apex, ovate, ca. 1.8 mm. Filaments ca. 1.3 mm, puberulent; anthers ca. 4 mm, with 2 spurs; tubules ca. 2 × as long as thecae. Berry 10-pseudoloculed, dark blue with a bloom, ca. 5 mm in diam.; pedicel 4–5 mm. Fl. Mar–May, fr. Sep–Dec.
Dense forests, rocks in forests; 1200–1400 m. Hainan [Vietnam].