yucca

‖n. [ NL., from Yuca, its name in St. Domingo. ] (Bot.) A genus of American liliaceous, sometimes arborescent, plants having long, pointed, and often rigid, leaves at the top of a more or less woody stem, and bearing a large panicle of showy white blossoms. [ 1913 Webster ]

☞ The species with more rigid leaves (as Yucca aloifolia, Yucca Treculiana, and Yucca baccata) are called Spanish bayonet, and one with softer leaves (Yucca filamentosa) is called bear grass, and Adam's needle. [ 1913 Webster ]

Yucca moth (Zool.), a small silvery moth (Pronuba yuccasella) whose larvae feed on plants of the genus Yucca. [ 1913 Webster ]