Viccinium membranaceum vs bilberry

Viccinium membranaceum and bilberry both are nouns.

Word	Noun	Adjective	Verb	Adverb
Viccinium membranaceum	Yes	No	No	No
bilberry	Yes	No	No	No

As nouns, Viccinium membranaceum and bilberry are synonyms defined as:

Viccinium membranaceum and bilberry: erect blueberry of western United States having solitary flowers and somewhat sour berries

Other synonyms of Viccinium membranaceum include mountain blue berry, thin-leaved bilberry.

Viccinium membranaceum (noun)	bilberry (noun)
erect blueberry of western United States having solitary flowers and somewhat sour berries	blue-black berries similar to American blueberries
	erect blueberry of western United States having solitary flowers and somewhat sour berries
	erect European blueberry having solitary flowers and blue-black berries