bear's grape vs hog cranberry

bear's grape and hog cranberry both are nouns.

Word	Noun	Adjective	Verb	Adverb
bear's grape	Yes	No	No	No
hog cranberry	Yes	No	No	No

As nouns, bear's grape and hog cranberry are synonyms defined as:

bear's grape and hog cranberry: evergreen mat-forming shrub of North America and northern Eurasia having small white flowers and red berries; leaves turn red in autumn

bear's grape (noun)	hog cranberry (noun)
evergreen mat-forming shrub of North America and northern Eurasia having small white flowers and red berries; leaves turn red in autumn	evergreen mat-forming shrub of North America and northern Eurasia having small white flowers and red berries; leaves turn red in autumn