Description from Flora of China
Shrubs 1.5–3(–4) m tall, glabrous. Root tubers conoid or spherical. Twigs not angled, 4–10 mm in diam. Leaves pseudoverticillate; petiole 2–3 mm or leaves subsessile; leaf blade oblong-lanceolate, 10–25 × 2–4.5 cm, leathery, secondary veins 14–16 pairs, evident, marginal vein distinct, base obtuse to rounded, margin plane, inconspicuously and distantly sinuous. Inflorescences racemose, on old stem, few flowered; peduncle 0.5–1.5 cm. Pedicel 2.5–3 cm, expanded upwards, clavate. Calyx tube inconspicuously angled, 3–5 mm; limb divided ca. 9/10; lobes narrowly triangular, ca. 1 cm. Corolla pinkish or rose, with dark purple transverse zig-zag bands, tubular, 4.5–6 cm; lobes spreading, greenish, narrowly triangular, ca. 1.1 mm. Filaments ca. 2 mm, pubescent; anthers 4.5–4.8 cm, thecae densely papillate and puberulous, tubules 4–5 × as long as thecae, with 2 spreading ca. 1 mm spurs at middle. Berry large. Fl. Sep–Dec, fr. Nov–Jan of next year.
Sparse forests or thickets on calcareous mountains, epiphytic on trees; 700–1500 m. SE Xizang, S Yunnan [Myanmar].