thin-leaved bilberry vs bilberry

thin-leaved bilberry and bilberry both are nouns.

Word	Noun	Adjective	Verb	Adverb
thin-leaved bilberry	Yes	No	No	No
bilberry	Yes	No	No	No

As nouns, thin-leaved bilberry and bilberry are synonyms defined as:

thin-leaved bilberry and bilberry: erect blueberry of western United States having solitary flowers and somewhat sour berries

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

thin-leaved bilberry (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