shagbark hickory vs shellbark hickory

shagbark hickory and shellbark hickory both are nouns.

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

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

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

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

shagbark hickory (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