BRYONIA, in botany, a genus of the monœcia syngenesia class. The calix of the male has five teeth; the corolla is divided into five segments; and there are three filaments. The calix of the female is likewise toothed; the corolla has five divisions; the stylus is trifid; and the berry is roundish, and contains many seeds. There are six species of bryony, only one of which, viz. the alba, or white bryony, is a native of Britain. The root is a strong cathartic, and, applied externally, is said to be a powerful discutient.
Black-BRYONY. See TAMUS.