Carya aquatica vs bitter pecan

Carya aquatica and bitter pecan both are nouns.

Word	Noun	Adjective	Verb	Adverb
Carya aquatica	Yes	No	No	No
bitter pecan	Yes	No	No	No

As nouns, Carya aquatica and bitter pecan are synonyms defined as:

Carya aquatica and bitter pecan: hickory of southern United States having many narrow leaflets and rather bitter nuts

Other synonyms of Carya aquatica include water bitternut, water hickory.

Carya aquatica (noun)	bitter pecan (noun)
hickory of southern United States having many narrow leaflets and rather bitter nuts	hickory of southern United States having many narrow leaflets and rather bitter nuts