Vaccinium vitis-idaea is a small evergreen shrub in the heath family Ericaceae, known colloquially as the lingonberry, partridgeberry, foxberry, mountain cranberry, or cowberry. It is native to boreal forest and Arctic tundra throughout the Northern Hemisphere, including Eurasia and North America. Commercially cultivated in the United States Pacific Northwest and the Netherlands, the edible berries are also picked in the wild and used in various dishes, especially in Nordic cuisine. Description. Vaccinium vitis-idaea spreads by underground stems to form dense clonal colonies.
https://en.wikipedia.org/wiki/Vaccinium_vitis-idaea