Indian bean vs genus Catalpa

Indian bean and genus Catalpa both are nouns.

Word	Noun	Adjective	Verb	Adverb
Indian bean	Yes	No	No	No
genus Catalpa	Yes	No	No	No

Indian bean (noun)	genus Catalpa (noun)
perennial twining vine of Old World tropics having trifoliate leaves and racemes of fragrant purple pea-like flowers followed by maroon pods of edible seeds; grown as an ornamental and as a vegetable on the Indian subcontinent; sometimes placed in genus Dolichos	a dicotyledonous genus of plants belonging to the family Bignoniaceae; has large flowers (white or mottled) and long terete pods
tree of the genus Catalpa with large leaves and white flowers followed by long slender pods