Ampelopsis megalophylla Diels & Gilg

Branchlets terete; tendrils trifurcate. Leaves bipinnate, with basal pinnae usually 3-foliolate, or rarely pinnately compound; petiole 3-8 cm; central petiolule 1-3 cm, lateral petiolules absent to 1 cm; leaflets oblong or ovate-elliptic, 4-12 × 2-6 cm, lateral veins 4-8 pairs, veinlets slightly raised, base slightly cordate, rounded, or subtruncate, margin 3-15-toothed on each side, apex acuminate. Inflorescence corymbose or a broad compound dichasium, terminal or leaf-opposed; peduncle 3.5-6 cm. Pedicel 2-3 mm. Buds globose, 1-1.5 mm, apex rounded. Calyx glabrous, undulately lobed or lobes triangular. Petals elliptic, 0.7-1.2 mm, glabrous. Anthers elliptic. Lower part of ovary adnate to disk; style conical. Berry slightly obovoid, 6-10 mm in diam., 1-4-seeded. Seeds obovoid, chalazal knot elliptic. Fl. May-Aug, fr. Jul-Oct.

Chongqing, Gansu, Guizhou, Hubei, Jiangxi, Shaanxi, Sichuan, Yunnan.

● Forests, shrublands in valleys, mountain slopes, hilltops, valleys; 600-2000 m.