Description from Flora of China
Jasminum yunnanense Jien ex P. Y. Bai.
Vines woody. Branchlets terete, rusty villous. Leaves opposite or nearly so, simple, rusty villous when young; petiole 5-12 mm; leaf blade elliptic, broadly ovate, or cordate, 6.5-19 × 3.3-9 cm, papery, puberulent along veins adaxially, base broadly cuneate to subcordate or blunt, apex acuminate, acute, or short caudate; primary veins 6 or 7 on each side of midrib, slightly impressed. Cymes terminal, congested, many flowered; bracts leafy at base, 1.5-2 cm, densely tomentose, upper ones linear and 4-10 mm. Pedicel very short or absent. Calyx yellow, rusty tomentose; tube 1-3 mm; lobes 5-8, linear, 5-8 mm, enlarged in fruit. Corolla white, salverform; tube ca. 2.5 cm; lobes 5-8, lanceolate, 1-1.2 cm. Berry purple-black, ellipsoid or subglobose, 1-1.3 cm × 6-10 mm. Fl. Apr-May, fr. May-Jun.
Valleys, thickets; ca. 800 m. Yunnan [Laos, Vietnam]