大叶白粉藤 da ye bai fen teng

Lianas, woody. Branchlets terete, ± with versatile villous hairs; tendrils racemosely 5-7-branched. Leaves simple, undivided or slightly 3-lobed; petiole 1.5-9 cm; stipules ovate-elliptic or oval, 2-3 mm, herbaceous, apex rounded; leaf blade ovate-orbicular, 5-15 × 2-5 cm, adaxially with sparse versatile and villous hairs when young, then nearly glabrescent, basal veins 5-7, lateral veins 4 or 5 pairs, veinlets inconspicuously raised or abaxially slightly raised, base cordate, margin with irregular teeth or undulate, fine teeth in curves of wavy margin, apex acuminate, mucronate or acute. Compound umbel terminal or leaf-opposed; peduncle 1.5-3.5 cm. Pedicel 2-6 mm. Buds oval, 2-3 mm, apex rounded. Calyx teeth inconspicuous. Petals oval, 1.7-2.7 mm. Anthers oval, abortive in female flowers. Disk undulately 4-lobed. Lower part of ovary adnate to disk; style conical, base slightly thick; stigma slightly expanded. Berry 6-8 mm, 1-seeded. Seed surface with slightly raised ridges. Fl. Apr-May, fr. May-Jun.

Forests, shrublands, grassy areas; 500-1000 m. Hainan, Sichuan, Yunnan [Bhutan, India, Sri Lanka, Thailand].