Vaccinium vitis-idaea (lingonberry or cowberry) is a short evergreen shrub in the heath family that bears edible fruit, native to boreal forest and Arctic tundra throughout the Northern Hemisphere from Eurasia to North America. Lingonberries are a staple in Northern Scandinavia, picked in the wild and used to accompany a variety of dishes.

Vaccinium vitis-idaea spreads by underground stems to form dense clonal colonies. Slender and brittle roots grow from the underground stems. The stems are rounded in cross-section and grow from 10 to 40 cm (4 to 16 in) in height. Leaves grow alternately and are oval, 5-30 mm (0.2-1.2 in) long, with a slightly wavy margin, and sometimes with a notched tip.

The flowers are bell-shaped, white to pale pink, 3-8 mm (0.1-0.3 in) long, and produced in the early summer. The fruit is a red berry 6-10 mm (0.2-0.4 in) across, with an acidic taste, ripening in late summer to autumn.