Perennial climbing herbs, more than 5 meters long. The rhizome is thick, cylindrical and yellow. Stems are much branched and glabrous; Tendrils axillary, slender, 2-5-lobed at the top. Leaves alternate, suborbicular or heart-shaped, about 7-20 cm in length and width, usually 5-7 palmately lobed or midrified, rarely deeply lobed, or undivided but with coarse teeth of different sizes. Lobes oblong or oblong, elliptic to ovate-lanceolate, with sparse short hairs or hairless surfaces, sharp or short acuminate, sparse teeth or notched edges. Dioecious; There are several male flowers on the upper part of the total pedicel, which are racemes with a length of 10-20 cm, and a few are solitary. The bracts are obovate or broadly ovoid, with a length of 1.5-2 cm, and the edges are toothed. The receptacle is tubular and about 3.5 cm long. Calyx lobes lanceolate, entire, about 65438 05 mm long, corolla lobes obovate, with thin lines at the top, 3 stamens, short and hairy filaments, and anthers close together; Female flowers are solitary, ovary ovate, style 3-lobed. The fruit is nearly spherical, orange-red and smooth when ripe; Seeds numerous, flat. The flowering period is July-August, and the fruiting period is September-165438+1October.