This genus contains about 100 species of erect or trailing evergreen or deciduous shrubs chiefly remarkable for their berried fruits black, red, or purple in colour. The plants like a moist peaty soil, and are used sparingly for shrubberies and rock gardens. They are increased by seeds, layers, and cuttings. Amongst the best-known species are V. Myr-tillus, the Common Whortleberry, Bilberry, or Blueberry; V. stamineum, the Dewberry or Huckleberry; and V. Vitis-Idcea, the Cowberry. All natives of North America.