mockernut hickory vs hickory

mockernut hickory and hickory both are nouns.

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

As nouns, hickory is a hypernym of mockernut hickory; that is, hickory is a word with a broader meaning than mockernut hickory:

mockernut hickory: smooth-barked North American hickory with 7 to 9 leaflets bearing a hard-shelled edible nut
hickory: American hardwood tree bearing edible nuts

Other hypernyms of mockernut hickory include hickory tree.

mockernut hickory (noun)	hickory (noun)
smooth-barked North American hickory with 7 to 9 leaflets bearing a hard-shelled edible nut	American hardwood tree bearing edible nuts
	valuable tough heavy hardwood from various hickory trees