Menispermum glaucum Lamarck, Encycl. 4: 100. 1797; Cocculus incanus Colebrooke; Coscinium colaniae Gagnepain; Pericampylus formosanus Diels; P. incanus (Colebrooke) J. D. Hooker & Thomson; P. omeiensis W. Y. Lien; P. trinervatus Yamamoto.

Woody vines to 10 m or longer. Old stems glabrescent; young stems often long and pendulous, usually yellowish tomentose, striate. Petiole 3-7 cm, tomentose; leaf blade triangular-ovate to triangular-oblong, length and width 3.5-8(-10) cm, papery to thinly leathery, both surfaces tomentose or adaxially sparsely pubescent to glabrescent, rarely both surfaces glabrous, base subtruncate to cordate, rarely broadly cuneate, margin crenate or subentire, apex obtuse or rounded, rarely mucronate, apiculate, palmately (3-)5-veined, reticulation conspicuous. Inflorescences corymbose cymes, 2-10 cm, tomentose. Male flowers: sepals 9, ± pubescent abaxially, outer 3 narrow, ca. 0.5 mm, middle 3 oblanceolate, 1-1.5 mm, inner 3 slightly broad; petals 6, cuneate or sometimes spatulate, 0.5-0.7 mm, margin involute; stamens 6, filaments free or ± adnate, ca. 0.75 mm. Female flowers: sepals and petals as in male flowers; staminodes 6; ovary 0.5-0.7 mm, stigma 2-lobed. Drupes red or purple; endocarp 5-6 mm in diam. Fl. Apr-Jun, fr. Sep-Oct.

Forests, forest margins, shrublands; ca. 700 m (up to nearly 1300 m in Thailand). Fujian, Guangdong, Guangxi, Guizhou, Hainan, Hunan, Jiangxi, Sichuan, Taiwan, Zhejiang [India, Indonesia, Laos, Malaysia, Myanmar, Philippines, Thailand, Vietnam].