A small tree, Catalpa bignonioides (family Bignoniaceae), native to the south-eastern United States, with large heart-shaped leaves, large white flowers, and long seed pods.
Origin
Mid 19th century.
Definition of Indian bean in US English:
Indian bean
noun
A small tree, Catalpa bignonioides (family Bignoniaceae), native to the south-eastern United States, with large heart-shaped leaves, large white flowers, and long seed pods.