Genus Bignonia is a group of woody plants that belong to the family Bignoniaceae. Commonly known as trumpet vines, these plants are known for their bright, trumpet-shaped flowers. There are several synonyms for the genus Bignonia, including Campsis, Tecomaria, and Podranea. Campsis is a group of climbing vines that are native to North America and Asia. Tecomaria, on the other hand, is a South African genus that is also known for its showy flowers. Podranea, meanwhile, is a genus of flowering plants that are native to Africa and Madagascar. Despite these differences, all of these genera share many similar characteristics with the genus Bignonia, including their woody habits and stunning trumpet-shaped flowers.