papaw vs papaw tree

papaw and papaw tree both are nouns.

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

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

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

Other synonyms of papaw include Asimina triloba, pawpaw.

papaw (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