big-bud hickory vs white-heart hickory

big-bud hickory and white-heart hickory both are nouns.

Word	Noun	Adjective	Verb	Adverb
big-bud hickory	Yes	No	No	No
white-heart hickory	Yes	No	No	No

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

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

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

big-bud hickory (noun)	white-heart 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