American blueberry ( Vaccinium cyanococcus ) is a plant species within the family heather plants from North America. In English, called the species Northern high bush blueberry, or just blueberry.
Blueberries are flowering plants of the genus Vaccinium (a genus which also includes cranberries and bilberries) with dark-purple berries and is a perennial. Blueberries are the American blueberry a deciduous shrub that can grow to 4 feet high and often grows in dense thickets. The dark glossy leaves are elliptical and up to 5 inches long. The flowers are white and bell-shaped and about 10 millimeters long. The berries grow in clusters and their color is dark blue to black. The fruit flesh is pale green, unlike the European berry purplish flesh color and therefore not by themselves. The plant prefers moist, acidic soil.
While European blueberries in principle can not be grown commercially, as are virtually all American blueberries commercially cultivated, and large plantations of American blueberry bushes is now available in Australia and South America
The fruit is a berry 5-16 millimeters (0.20-0.63 in) diameter with a flared crown at the end; they are pale greenish at first, then reddish-purple, and finally indigo when ripe. They have a sweet taste when mature, with variable acidity. Blueberry bushes typically bear fruit in the middle of the growing season: fruiting times are affected by local conditions such as altitude and latitude, so the height of the crop can vary from May to August depending upon these conditions.
The genus Vaccinium has a circumpolar distribution with species in North America, Europe, and Asia.
Many commercially sold species whose English common names include “blueberry” are currently classified in section Cyanococcus of the genus Vaccinium and come predominantly from North America. Many North American native species of blueberries are now also commercially grown in the Southern Hemisphere in Australia, New Zealand, and South American countries.
Several other plants of the genus Vaccinium also produce commonly eaten blueberries such as the predominantly European bilberry (Vaccinium myrtillus), which in many languages has a name that means “blueberry” in English.