Description from Flora of China
Shrubs small. Twigs terete, 2–5 mm in diam., densely long rust-colored glandular-setose, linear-lanceolate, 5–10 mm, brown membranous. Leaves dense; petiole very short; leaf blade obovate or subelliptic, 2–2.5 × 1–1.6 cm, glabrous, secondary veins 4 or 5 pairs, base cuneate, margin subrecurved, crenulate-denticulate, teeth apiculate, apex subacute or subobtuse. Flowers solitary, pendulous. Pedicel ca. 2 mm, glandular setose, not expanded. Calyx tube obconical, 2–3 mm in diam., densely pubescent; limb divided ca. 4/5; lobes ovate-triangular, 2–3 mm, pubescent. Corolla white, subtubular; tube 8–10 mm, 5-angled, densely puberulous, glandular hairs along angles; lobes triangular, ca. 1 mm, glabrescent. Filaments 3–4 mm, pubescent; anthers ca. 5 mm, thecae rounded and shortly cornute at base, tubules ca. 1.5 × as long as thecae, with 2 erect spurs. Berry unknown. Fl. Jul.
Forests, epiphytic on trees; 1500–1800 m. SE Xizang.