white-heart hickory vs mockernut hickory

white-heart hickory and mockernut hickory both are nouns.

Word	Noun	Adjective	Verb	Adverb
white-heart hickory	Yes	No	No	No
mockernut hickory	Yes	No	No	No

As nouns, white-heart hickory and mockernut hickory are synonyms defined as:

white-heart hickory and mockernut hickory: smooth-barked North American hickory with 7 to 9 leaflets bearing a hard-shelled edible nut

Other synonyms of white-heart hickory include big-bud hickory, black hickory, Carya tomentosa, mockernut.

white-heart hickory (noun)	mockernut hickory (noun)
smooth-barked North American hickory with 7 to 9 leaflets bearing a hard-shelled edible nut	smooth-barked North American hickory with 7 to 9 leaflets bearing a hard-shelled edible nut