Description from Flora of China
Shrubs evergreen, procumbent, sparsely branched. Twigs angled, pubescent; bud scales caducous. Leaves 1 or 2 at ends of twigs, subsessile; leaf blade ovate or elliptic, 4–8 × 2.5–4 cm, thickly leathery, glabrous or abaxially with sparse appressed hairs, midvein stout, secondary veins 4 pairs, subascending, secondary and fine veins raised abaxially, impressed adaxially, base cuneate to broadly cuneate, margin plane, entire, with 1 basal gland per side, apex obtuse or emarginate. Inflorescences from defoliate axils, racemose, 1–2 cm, usually 3-flowered; bracts ca. 1 cm. Pedicel 1–1.7 cm, expanded towards apex, glabrous; bracteoles similar to bracts. Hypanthium glabrous; calyx lobes oblong, 4–6 mm. Corolla pinkish, campanulate, ca. 1.2 cm, glabrous; lobes broadly triangular. Filaments ca. 3 mm, densely ciliate; anthers ca. 1 cm, with 2 erect spurs; tubules ca. 2 × as long as thecae. Berry globose, ca. 8 mm in diam. Fl. May–Jun, fr. Jul.
Mossy places in evergreen forests on calcareous mountains; ca. 1700 m. SE Yunnan (Malipo, Xichou).