bear's grape vs wild cranberry

bear's grape and wild cranberry both are nouns.

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

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

bear's grape and wild 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)	wild 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