Description from Flora of China
Shrubs. Rootstock spindle-shaped. Twigs terete, to 7 mm in diam., densely brown spreading glandular setose. Leaves scattered and sometimes subopposite; petiole 1–3 mm and glabrous or leaves subsessile; leaf blade elliptic or oblong-lanceolate, 5–12.5 × to 5.5 cm, leathery, glabrous, adaxially slightly bullate, secondary veins 5–7 pairs, secondary and fine veins raised on both surfaces, base attenuate, obtuse, or auriculate, margin recurved, entire, with 1 or 2(–4) subbasal glands per side, apex acute or acuminate. Inflorescences fasciculate, sometimes below leaves, 3- or 4-flowered. Pedicel 3–6 mm, slightly thickened towards apex, densely glandular setose or glabrous. Calyx 4–5 mm, densely spreading glandular setose; limb divided ca. 1/3; lobes triangular, ca. 1.5 mm. Corolla white, tubular, ca. 2 cm, with glandular hairs; lobes triangular, ca. 1 mm. Filaments ca. 1.4 cm, upwards densely pubescent; anthers ca. 6 mm, thecae papillate, tubules to 2 × as long as thecae, with 2 erect spurs. Berry globose, 4–6 mm in diam., setose. Fl. Oct–Dec, fr. Oct–Jan.
Dense forests, sometimes epiphytic on trees, thickets at bases of hills, rock crevices; 1100–2000 m. SE Yunnan [N Vietnam].