白大花千斤藤 bai da hua qian jin teng

Subshrubs, scandent. Stems gray, terete, verruculose-lenticellate. Petiole 6.5-9 cm, densely puberulent; leaf blade ovate-cordate, 16-17 X 13-15 cm, abaxially pubescent, adaxially subglabrous, base cordate, margin entire; lateral veins ca. 14 pairs. Inflorescences several flowered; peduncle stout, shorter than petiole, densely puberulent; bracts early deciduous. Pedicel stout, 0.7-1.3 cm, densely pubescent. Sepals slightly unequal, ± leathery, abaxially densely pubescent; outer 2 elliptic, 1.3-1.4 cm, apex obtuse; inner 3 elliptic to nearly circular, 1.4-1.5 cm, apex emarginate. Corolla white, broadly funnelform, 5.5-6.5 cm; tube gradually narrowed toward base; limb shallowly 5-lobed; lobes semicircular. Stamens slightly unequal; filaments dilated basally, puberulent. Ovary narrowly conical. Stigma 2-lobed. Capsule unknown. Fl. Feb.

* Thickets on dry mountain slopes. Yunnan