Vaccinium vitis-idaea (lingonberry, partridgeberry, 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 picked in the wild and used to accompany a variety of dishes in Northern Baltoscandia and Russia. Commercial cultivation is undertaken in the U.S. Pacific Northwest and in many other regions of the world.
Vaccinium vitis-idaea is most commonly known in English as lingonberry or cowberry. The name lingonberry originates from the Swedish name lingon for the species, and is derived from the Norse lyngr, or heather.
The genus name Vaccinium is a classical Latin name for a plant, possibly the bilberry or hyacinth, and may be derived from the Latin bacca, berry. The specific name is derived from Latin vitis ("vine") and idaea, the feminine form of idaeus (literally "from Mount Ida", used in reference to raspberries Rubus idaeus).
There are at least 25 other common English names of Vaccinium vitis-idaea worldwide, including:
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.
Vaccinium vitis-idaea keeps its leaves all winter even in the coldest years, unusual for a broad-leaved plant, though in its natural habitat it is usually protected from severe cold by snow cover. It is extremely hardy, tolerating temperatures as low as −40 °C (−40 °F) or lower, but grows poorly where summers are hot. It prefers some shade (as from a forest canopy) and constantly moist, acidic soil. Nutrient-poor soils are tolerated but not alkaline soils.
The berries collected in the wild are a popular fruit in northern, central and eastern Europe, notably in Nordic countries, the Baltic states, central and northern Europe. In some areas, they can legally be picked on both public and private lands in accordance with the freedom to roam.
The berries are quite tart, so they are often cooked and sweetened before eating in the form of lingonberry jam, compote, juice, smoothie or syrup. The raw fruits are also frequently simply mashed with sugar, which preserves most of their nutrients and taste. This mix can be stored at room temperature in closed but not necessarily sealed containers, but in this condition, they are best preserved frozen. Fruit served this way or as compote often accompany game and liver dishes.
In Sweden and Norway, reindeer and elk steak is traditionally served with gravy and lingonberry sauce. Preserved fruit is commonly eaten with meatballs, potato pancakes. A traditional Swedish dessert is lingonpäron (literally lingonberry pears), consisting of fresh pears which are peeled, boiled and preserved in lingondricka (lingonberry juice) and is commonly eaten during Christmas. This was very common in old times, because it was an easy and tasty way to preserve pears. In Sweden and Russia, when sugar was still a luxury item, the berries were usually preserved simply by putting them whole into bottles of water. This was known as vattlingon (watered lingonberries); the procedure preserved them until next season. This was also a home remedy against scurvy.
This traditional Russian soft drink, known as "lingonberry water", is mentioned by Alexander Pushkin in Eugene Onegin. In Russian folk medicine, lingonberry water was used as a mild laxative. A traditional Finnish dish is sautéed reindeer (poronkäristys) with mashed potatoes and lingonberries, either cooked or raw with sugar. In Finland, a porridge made from the fruit is also popular. In Poland, the berries are often mixed with pears to create a sauce served with poultry or game. The berries can also be used to replace redcurrants when creating Cumberland sauce.
The berries are also popular as a wild picked fruit in Eastern Canada, for example in Newfoundland and Labrador and Cape Breton, where they are locally known as partridgeberries or redberries, and on the mainland of Nova Scotia, where they are known as foxberries. In this region they are incorporated into jams, syrups, and baked goods, such as pies, scones, and muffins.
In Sweden lingonberries are often sold as jam and juice, and as a key ingredient in dishes. They are used to make Lillehammer berry liqueur; and, in East European countries, lingonberry vodka is sold, and vodka with lingonberry juice or "mors" is a popular cocktail.
The berries are an important food for bears and foxes, and many fruit-eating birds. Caterpillars of the case-bearer moths Coleophora glitzella, Coleophora idaeella and Coleophora vitisella are obligate feeders on V. vitis-idaea leaves.
Alaska natives mix the berries with rose hip pulp and sugar to make jam, cook the berries as a sauce, and store the berries for future use. The Dakelh use the berries to make jam. The Koyukon freeze the berries for winter use. Eskimos dilute and sweeten the juice to make a beverage, freeze and store the berries for spring, and use the berries to make jams and jellies. The Inupiat use the berries to make two different desserts, one where the berries whipped with frozen fish eggs and eaten, and they mash raw berries mashed with canned milk and seal oil. They also make a dish of the berries cooked with cooked with fish eggs, fish (whitefish, sheefish or pike) and blubber.
The Upper Tanana boil the berries with sugar and flour to thicken, eat the raw berries, either plain or mixing them with sugar, grease or the combination of the two, fry them in grease with sugar or dried fish eggs, and make them into pies, jam, and jelly. They also preserve the berries alone or in grease and stored them in a birchbark basket in an underground cache, or freeze them.
The Anticosti people use the fruit to make jams and jellies. The Nihithawak Cree store the berries by freezing them outside during the winter, mix the berries with boiled fish eggs, livers, air bladders and fat and eat them, eat the berries raw as a snack food, and stew them with fish or meat. The Eskimos of Nelson Island eat the berries, as do the Eskimos of the Northern Bering Sea and Arctic regions of Alaska., as well as the Western Canadian Inuktitut. The Haida people, Hesquiaht First Nation, Wuikinuxv and Tsimshian all use the berries as food.
In folk medicine, V. vitis-idaea has been used as an apéritif, astringent, antihemorrhagic, anti-debilitive, depurative, antiseptic (especially for the urethra), a diuretic, a tonic for the nervous system, and in various ways to treat breast cancer, diabetes mellitus, rheumatism, and various urogenital conditions.
The Nihithawak Cree use the berries of the minus subspecies to color porcupine quills, and put the firm, ripe berries on a string to wear as a necklace. The Western Canadian Inuktitut use the minus subspecies as a tobacco additive or substitute.
Vaccinium vitis-idaea differs from the related cranberries in having white flowers with petals partially enclosing the stamens and stigma, rather than pink flowers with petals reflexed backwards, and rounder, less pear-shaped berries.