Vaccinium vitis-idaea (lingonberry, Northern mountain cranberry, alpine cranberry)

Lingonberry, Northern Lingonberry, Northern Mountain-cranberry, Cowberry

Slow, low-growing, evergreen shrub. Small (0.4 to 1 inch long) leaves are alternate, leathery, and evergreen. Flowers are sweet, white, or light pink, bell-shaped, and nodding. Attractive red berries, leaves, and berries. Form an edible ground cover. Plants are self-fertile, but having additional selections will increase production dramatically. Susi and Red Sunset are considered good pollinizers, it is recommended to plant at least one pollinizer for every 10 lingonberries.
Lingonberries can tolerate soil up to a 6.0, but prefer very acidic soil with a pH of 4.2-5.5, like blueberries. These prefer full sun and can be grown alongside blueberry bushes or other acid-loving plants. They do not compete well, however, they spread slowly by stolons. 

Berries are edible, and related to the blueberry, huckleberry, and cranberry, The fruit resembles a cranberry in size, with a mildly tart flavor, often eaten raw or used in jams, juices, wine, baking, etc, sometimes pickled.

The leaves and berries are used to make medicine. The fruit is high in antioxidants (polyphenols) and is highly nutritious, often considered superior to its relatives, and considered a ‘superfood’.