bilberry

n. bush; fruit of this bush

Bilberry is a name given to several species of low-growing shrubs in the genus Vaccinium (family Ericaceae) that bear tasty fruits. The species most often referred to is Vaccinium myrtillus L., also known as blaeberry, whortleberry, whinberry (or winberry), myrtle blueberry, fraughan, and probably other names regionally. They were called black-hearts in 19th century southern England, according to Thomas Hardy's 1878 novel, The Return of the Native, (pg. 311, Oxford World's Classics edition).
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Bilberry /bil·ber·ry/ the leaves and fruit of Vaccinium myrtillus, having astringent and antidiarrheal effects, used topically for inflammation, [more]Bilberry - Community and Resources

Noun
1. erect European blueberry having solitary flowers and blue-black berries
(synonym) whortleberry, whinberry, blaeberry, Viccinium myrtillus
(hypernym) blueberry, blueberry bush
(part-meronym) whortleberry, European blueberry
2. erect blueberry of western United States having solitary flowers and somewhat sour berries
(synonym) thin-leaved bilberry, mountain blue berry, Viccinium membranaceum
(hypernym) blueberry, blueberry bush
3. blue-black berries similar to American blueberries
(synonym) whortleberry, European blueberry
(hypernym) berry
(part-holonym) whortleberry, whinberry, blaeberry, Viccinium myrtillus

(n.)
The European whortleberry (Vaccinium myrtillus); also, its edible bluish black fruit.
  

(n.)
Any similar plant or its fruit; esp., in America, the species Vaccinium myrtilloides, V. caespitosum and V. uliginosum.