Partridgeberry (Vaccinium vitis-idaea). Partridgeberries are internationally known as lingonberries. This relative of the cranberry family is a low mat forming evergreen shrub with tiny rounded leaves. These berries grow in the dry, acidic soils of Newfoundland and Labrador's barrens and coastal headlands. Their flowers have a pinkish hue in bud then turn white as they bloom in mid-June to mid-July. The flower ovaries gives rise to a single dark red berry ripening through September's frost. Tart in flavour they are high in vitamin C, tannin, anthocyanin, and antioxidants. Some research has shown these agents to play a role in the prevention of high blood pressure, urinary tract infections, cardiovascular disease, cataracts, slowing such aging processes as memory loss and the deterioration of motor skill, improving circulation, as well as the prevention of certain forms of cancer.