The members of the Bignoniaceae family are primarily tropical trees and shrubs and include approximately 113 genera, and800 species. Usually the leaves are opposite and large, without stipules.The flowers are bisexual and zygomorphic. The calyx has five sepals.The corolla has five petals and is often bilabial. The number of stamens often is 4, inserted in the corolla. The fruit vessel is one with a superior bilocular ovary full of multiple seeds. The fruit is usually a capsule with winged seeds.
The members of the family are widely dispersed in the tropical and subtropical regions, several species spread throughout the moderate climate regions.