bilberry

(noun) erect European blueberry having solitary flowers and blue-black berries. Synonyms: whortleberry, whinberry, blaeberry, Viccinium myrtillus.

(noun) erect blueberry of western United States having solitary flowers and somewhat sour berries. Synonyms: thin-leaved bilberry, mountain blue berry, Viccinium membranaceum.

(noun) blue-black berries similar to American blueberries. Synonyms: whortleberry, European blueberry.