Menispermum canadense L.

Vines or lianas , vines twining, to ca. 5 m; rhizomes to 1 cm diam. Leaves peltate with petiole inserted to 11 mm from margin, rarely not peltate; petiole to 20 cm. Leaf blade ovate or nearly orbiculate, rarely reniform, to 23 × 24 cm, membranous; venation 7-12. Inflorescences to 18 cm; rachis glabrous or sparsely pilose. Flowers: sepals (4-)5-8, ovate, elliptic, or obovate, 1-4 × 0.4-1.8 mm, glabrous or sparsely pilose; petals 4-12, elliptic to nearly orbiculate or obovate, 0.6-2 × 0.6-2 mm, margins slightly involute, glabrous. Staminate flowers: stamens to 4 mm. Pistillate flowers: staminodes to 0.8(-1.5) mm; pistils 2-4, to 1.4 mm. Drupes black or bluish black, 8-13 mm diam., often glaucous. 2 n = 52.

Moist woods and hedges near streams. Deciduous woods and thickets, along streams, bluffs and rocky hillsides, fencerows, shade tolerant from sea level to 700 metres.

Can be grown by cuttings or seedlings.