Viccinium myrtillus vs bilberry

Viccinium myrtillus and bilberry both are nouns.

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

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

Viccinium myrtillus and bilberry: erect European blueberry having solitary flowers and blue-black berries

Other synonyms of Viccinium myrtillus include blaeberry, whinberry, whortleberry.

Viccinium myrtillus (noun)	bilberry (noun)
erect European blueberry having solitary flowers and blue-black 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