Vaccinium vitas-idaea also called Bog-Cranberry and Lowbush Cranberry
Lingonberries, especially when not in bloom, can easily be confused with the Common Bearberry (Arctostaphylos uva-ursi), historically known as Kinnikinnik. Around here, the lingonberries are a denser plant, while the bearberry seems to grow more openly, but I am never sure of my identification until the flowers bloom. A magnifying glass helps, as the lingonberry has bristle-like glands on the lower side of the leaf.
Once in bloom, the flowers are, although similar, are distinguishable on close inspection. The bell of the bearberry’s flowers is ‘tucked-in’ or more urn-shaped.
Vaccinium have been used traditionally in North America for the cranberry sauces commonly served with turkey dinners at Christmas and Thanksgiving, although this northern species is only lately being tried as a commercial plant.
Northern native people, however, have always known of and used lingonberries as food. In fact it was one of the most important berries for them and used almost exclusively in pemmican. The plant was also used medicinally, for jewelry, as a dye for porcupine quills and a tobacco-stretcher. (Source)