What is "black bryony"

Bryony \Bry"o*ny\ (br[imac]"[-o]*n[y^]), n. [L. bryonia, Gr. brywni`a, fr. bry`ein to swell, esp. of plants.] (Bot.) The common name of several cucurbitaceous plants of the genus Bryonia. The root of Bryonia alba ( rough bryony or white bryony) and of Bryonia dioica is a strong, irritating cathartic.

Black bryony, a plant ( Tamus communis) so named from its dark glossy leaves and black root; black bindweed. [1913 Webster] ||

n. The plant (taxlink Tamus communis species noshow=1).

n. common European twining vine with tuberous roots and cordate leaves and red berries [syn: black bindweed, Tamus communis]