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.

a tendril-bearing vine of the genus Bryonia having large leaves and small flowers and yielding acrid juice with emetic and purgative properties

Bryony or briony is the common name for species in the genus Bryonia of perennial, tendril-climbing, dioecious herbs with palmately lobed leaves and flowers in axillary clusters. The fruit is a smooth, globular berry.