A genus of shrubs or dwarf shrubs in the plant Family Ericaceae. The genus contains about 450 species, which are found mostly in the cooler areas of the Northern Hemisphere, although there are tropical species from areas as widely separated as Madagascar and Hawaii.
The fruit of many species are eaten by humans and some are of commercial importance, including the cranberry, blueberry, bilberry or whortleberry, lingonberry or cowberry, and huckleberry. Like many other ericaceous plants, they are generally restricted to acidic soils.
The plant structure varies between species – some trail along the ground, some are dwarf shrubs, and some are larger shrubs perhaps 1 to 2 m (3 to 7 ft) tall. The fruit develops from an inferior ovary, and is a false berry; it is usually brightly coloured, often being red or bluish with purple juice.