What is "vaccinium angustifolium"

Bluets \Blu"ets\, n. [F. bluet, bleuet, dim. of bleu blue. See Blue, a.] (Bot.) A name given to several different species of plants having blue flowers, as the Houstonia c[oe]rulea, the Centaurea cyanus or bluebottle, and the Vaccinium angustifolium.

Vaccinium angustifolium, commonly known as the lowbush blueberry, is a species of blueberry native to eastern and central Canada (from Manitoba to Newfoundland) and the northeastern United States, growing as far south as the Great Smoky Mountains and west to the Great Lakes region.