Li'on's-leaf, n.
n. (Bot.) A plant of the genus Leontice (L. leontopetalum), the tuberous roots of which contain so much alkali that they are sometimes used as a substitute for soap. Baird.
n. (Bot.) A plant of the genus Leontice (L. leontopetalum), the tuberous roots of which contain so much alkali that they are sometimes used as a substitute for soap. Baird.