bear's foot vs hellebore

bear's foot and hellebore both are nouns.

Word	Noun	Adjective	Verb	Adverb
bear's foot	Yes	No	No	No
hellebore	Yes	No	No	No

As nouns, hellebore is a hypernym of bear's foot; that is, hellebore is a word with a broader meaning than bear's foot:

bear's foot: digitate-leaved hellebore with an offensive odor and irritant qualities when taken internally
hellebore: any plant of the Eurasian genus Helleborus

bear's foot (noun)	hellebore (noun)
digitate-leaved hellebore with an offensive odor and irritant qualities when taken internally	any plant of the Eurasian genus Helleborus
	perennial herbs of the lily family having thick toxic rhizomes