shellbark vs shellbark hickory

shellbark and shellbark hickory both are nouns.

Word	Noun	Adjective	Verb	Adverb
shellbark	Yes	No	No	No
shellbark hickory	Yes	No	No	No

As nouns, shellbark and shellbark hickory are synonyms defined as:

shellbark and shellbark hickory: North American hickory having loose grey shaggy bark and edible nuts

Other synonyms of shellbark include Carya ovata, shagbark, shagbark hickory.

shellbark (noun)	shellbark hickory (noun)
North American hickory having loose grey shaggy bark and edible nuts	North American hickory having loose grey shaggy bark and edible nuts