designating a family (Begoniaceae, order Violales) of dicotyledonous tropical plants
noun
any of a genus (Begonia) of plants of this family, grown for their handsome, ornamental leaves or their clustered, showy flowers
See begonia in American Heritage Dictionary 4
(bĭ-gōnˈyə)
noun
Any of various tropical or subtropical plants of the genus Begonia, widely cultivated as ornamentals for their usually asymmetrical, brightly colored leaves.