pawpaw vs papaw tree

pawpaw and papaw tree both are nouns.

Word	Noun	Adjective	Verb	Adverb
pawpaw	Yes	No	No	No
papaw tree	Yes	No	No	No

As nouns, pawpaw and papaw tree are synonyms defined as:

pawpaw and papaw tree: small tree native to the eastern United States having oblong leaves and fleshy fruit

Other synonyms of pawpaw include Asimina triloba, papaw.

pawpaw (noun)	papaw tree (noun)
fruit with yellow flesh; related to custard apples	small tree native to the eastern United States having oblong leaves and fleshy fruit
small tree native to the eastern United States having oblong leaves and fleshy fruit
tropical American shrub or small tree having huge deeply palmately cleft leaves and large oblong yellow fruit