big shellbark vs Carya laciniosa

big shellbark and Carya laciniosa both are nouns.

Word	Noun	Adjective	Verb	Adverb
big shellbark	Yes	No	No	No
Carya laciniosa	Yes	No	No	No

As nouns, big shellbark and Carya laciniosa are synonyms defined as:

big shellbark and Carya laciniosa: hickory of the eastern United States resembling the shagbark but having a much larger nut

Other synonyms of big shellbark include big shagbark, big shellbark hickory, king nut, king nut hickory.

big shellbark (noun)	Carya laciniosa (noun)
hickory of the eastern United States resembling the shagbark but having a much larger nut	hickory of the eastern United States resembling the shagbark but having a much larger nut