Beaumontia grandiflora

Beaumontia grandiflora, the Easter lily vine, herald's trumpet, or Nepal trumpet flower, is a species of flowering plant in the family Apocynaceae. It is native to the eastern Indian Subcontinent, southern China, and mainland Southeast Asia, and has been introduced to a number of locales in Central America. With its vining habit and trumpet-shaped flowers it is widely cultivated as an ornamental.