Arctostaphylos uva-ursi

Last updated

Arctostaphylos uva-ursi
Arctostaphylos uva-ursi 25924.JPG
Status TNC G5.svg
Secure  (NatureServe) [1]
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Ericales
Family: Ericaceae
Genus: Arctostaphylos
Species:
A. uva-ursi
Binomial name
Arctostaphylos uva-ursi
Synonyms [2]
List
    • Arbutus acerba Gilib. (1782)
    • Arbutus buxifolia Stokes (1812)
    • Arbutus officinalis Boiss. (1875)
    • Arbutus procumbens Salisb. (1796)
    • Arbutus uva-ursi L. (1753)
    • Arctostaphylos adenotricha (Fernald & J.F.Macbr.) Á.Löve, D.Löve & B.M.Kapoor (1972)
    • Arctostaphylos alpina Payot (1882)
    • Arctostaphylos angustifolia Payot (1882)
    • Arctostaphylos crassifolia (Braun-Blanq.) Rivas Mart. (2011)
    • Arctostaphylos officinalis Wimm. & Grab. (1827)
    • Arctostaphylos procumbens Patze, E.Mey. & Elkan (1849)
    • Arctostaphylos uva-ursi subsp. adenotricha (Fernald & J.F.Macbr.) Calder & Roy L.Taylor (1965)
    • Arctostaphylos uva-ursi subsp. coactilis (Fernald & J.F.Macbr.) Á.Löve, D.Löve & B.M.Kapoor (1971)
    • Arctostaphylos uva-ursi subsp. crassifolia Rivas Mart. (1963)
    • Arctostaphylos uva-ursi subsp. crassifolius (Braun-Blanq.) Rivas Mart. ex Torre, Alcaraz & M.B.Crespo (1995)
    • Arctostaphylos uva-ursi subsp. longipilosa Packer & Denford (1974)
    • Arctostaphylos uva-ursi subsp. monoensis Roof (1980)
    • Arctostaphylos uva-ursi subsp. stipitata Packer & Denford (1974)
    • Daphnidostaphylis fendleriana Klotzsch (1851)
    • Mairania uva-ursi (L.) Desv. (1813)
    • Mairrania uva-ursi (L.) Desv. (1813)
    • Uva-ursi buxifolia Gray (1821)
    • Uva-ursi procumbens Moench (1794)
    • Uva-ursi uva-ursi (L.) Cockerell ex Daniels (1911)

Arctostaphylos uva-ursi is a plant species of the genus Arctostaphylos widely distributed across circumboreal regions of the subarctic Northern Hemisphere. [3] Kinnikinnick (from the Unami for "smoking mixture") is a common name in Canada and the United States. [3] [4] [5] Growing up to 30 centimetres (12 inches) in height, the leaves are evergreen. The flowers are white to pink and the fruit is a red berry.

Contents

One of several related species referred to as bearberry , [3] [6] its specific epithet uva-ursi means "grape of the bear" in Latin (), similar to the meaning of the generic epithet Arctostaphylos (Greek for "bear grapes").

Description

Arctostaphylos uva-ursi is a small procumbent woody groundcover shrub growing to 5–30 centimetres (2–12 inches) high. [7] Wild stands of the species can be dense, with heights rarely taller than 15 cm (6 in). Erect branching twigs emerge from long flexible prostrate stems, which are produced by single roots. The trailing stems will layer, sending out small roots periodically. The finely textured velvety branches are initially white to pale green, becoming smooth and red-brown with maturity. [3] The small solitary three-scaled buds are dark brown.

The leaves are shiny, small, and feel thick and stiff, [7] measuring about 4 cm (1+12 in) long and 1 cm (12 in) wide. [8] Their tops are darker green than their undersides. [9] They have rounded tips tapering back to the base, held vertically by a twisted leaf stalk in an alternate arrangement on the stem. [9] The leaves remain green for 1–3 years before falling in autumn, when their colour changes to a reddish-green or purple, pale on the underside. [7]

Terminal clusters of small urn-shaped flowers bloom from May to June. The flowers are white to pink, [9] and bear round, fleshy or mealy, bright red to pink fruits called drupes. [3] The smooth, glossy skinned fruits range from 14 to 12 inch (6 to 13 mm) in diameter. The red fruits [3] persist on the plant into early winter. The fruits are bittersweet when raw, but sweeter when boiled and dried. Each drupe contains 1 to 5 hard seeds, which need to be scarified and stratified prior to germination to reduce the seed coat and break embryo dormancy. There is an average of 40,900 cleaned seeds per pound. [5]

Chemistry

The plant contains diverse phytochemicals, including ursolic acid, tannic acid, gallic acid, some essential oils and resin, hydroquinones (mainly arbutin, up to 17%), tannins (up to 15%), phenolic glycosides and flavonoids. [10]

Subspecies

As many as 14 subspecies have been accepted, [11] however as of 2024 they are considered synonyms by major sources such as Plants of the World Online and World Flora Online. [2] [12]

Etymology

The genus name of Arctostaphylos uva-ursi comes from the Greek words arctos (meaning bear) and staphyle (meaning "bunch of grapes") in reference to the fruits which form grape-like clusters. [3] [4] [7] In the wild, the fruits are commonly eaten by bears. [7] The specific epithet, uva-ursi, comes from the Latin words uva (meaning grape) and ursus (bear), reflected by the bearberry nickname. [7] [13]

The common name, kinnikinnick, is an Algonquin word meaning "smoking mixture". [4] [7] Native Americans and early pioneers smoked the dried uva-ursi leaves and bark alone or mixed with other herbs, tobacco or dried dogwood bark in pipes. [7] Numerous common names exist, depending on region, such as mealberry, sandberry, mountain-box, fox-plum, hog-crawberry, and barren myrtle. [4]

Distribution and habitat

The distribution of Arctostaphylos uva-ursi is circumpolar, and it is widespread in northern latitudes, [3] [11] [5] but confined to high altitudes further south:

Ecology

It is a fire-tolerant species and may be a seedbanking species. [3]

Arctostaphylos uva-ursi is an alternate host for spruce broom rust. [14]

Bears and other animals eat the berries. [15]

Conservation

The plant is rare or endangered in several states of the Midwestern United States. [5]

Toxicity

One review indicated that ingestion of large doses can cause allergic reactions, with nausea and seizures, as a potential emergency condition. [16] Preliminary studies indicate that arbutin may be toxic when ingested in high doses. [17] Uva ursi may cause adverse effects in people with liver or kidney disease, or pregnant and breastfeeding women. [16]

The leaves contain arbutin, [16] [17] which metabolizes to form hydroquinone, a potential liver toxin. [17] [18]

Uses

Bearberry fruits and leaves are used by members of the Blackfeet Nation as food. [19] While edible raw, the fruits are fairly bland that way, [7] [8] [20] but can be used to make jelly. [14] The berries were used as seasoning and cooked with meat. [21] The young leaves can be made into tea. [8] Teas and extracts of the leaves have been used in traditional medicine of First Nations people over centuries as urinary tract antiseptics, diuretics, and laxatives. [16] In herbalism, leaf tea is used to treat urinary tract inflammation. [16] Though thought to be an astringent [22] or cure for sexually transmitted diseases, [23] [ citation needed ] as of 2017, there was no high-quality evidence from clinical research that such treatments are effective or safe. [16]

Dried bearberry leaves are the main component in many traditional North American Native smoking mixes, [4] [24] known collectively as "kinnikinnick" (Algonquin for "smoking mixture") used especially among western First Nations, often including other herbs and sometimes tobacco. [4] [7] [16]

Native Americans also used the plant to make yellow dye. [14]

There are several cultivars that are propagated for use as ornamental plants. [4] It is an attractive year-round evergreen groundcover for gardens, and is useful for controlling erosion on hillsides and slopes due to its deep roots. [7] It is tolerant of sun and dry soils, and is thus common groundcover in urban areas, in naturalized areas, and in native plant or rock gardens. [3] [7] As the seeds are difficult to germinate they are most often propagated using rooted stems. [25]

Related Research Articles

<span class="mw-page-title-main">Manzanita</span> Common name for many species of genus Arctostaphylos

Manzanita is a common name for many species of the genus Arctostaphylos. They are evergreen shrubs or small trees present in the chaparral biome of western North America, where they occur from Southern British Columbia and Washington to Oregon, California, Utah, Arizona, New Mexico, and Texas in the United States, and throughout Mexico. Manzanitas can live in places with poor soil and little water. They are characterized by smooth orange or red bark and stiff, twisting branches. There are 105 species and subspecies of manzanita, 95 of which are found in the Mediterranean climate and colder mountainous regions of California, ranging from ground-hugging coastal and mountain species to small trees up to 20 feet (6m) tall. Manzanitas bloom from winter to early spring and carry berries in spring and summer. The berries and flowers of most species are edible.

<span class="mw-page-title-main">Bearberry</span> Common name for several plant species

Bearberries are three species of dwarf shrubs in the genus Arctostaphylos. Unlike the other species of Arctostaphylos, they are adapted to Arctic and subarctic climates, and have a circumpolar distribution in northern North America, Asia and Europe.

<i>Arctostaphylos</i> Genus of flowering plants in the heath family Ericaceae

Arctostaphylos is a genus of plants comprising the manzanitas and bearberries. There are about 60 species of Arctostaphylos, ranging from ground-hugging arctic, coastal, and mountain shrub to small trees up to 6 m tall. Most are evergreen, with small oval leaves 1–7 cm long, arranged spirally on the stems. The flowers are bell-shaped, white or pale pink, and borne in small clusters of 2–20 together; flowering is in the spring. The fruit are small berries, ripening in the summer or autumn. The berries of some species are edible.

<i>Arbutus</i> Genus of flowering plants in the heather family Ericaceae

Arbutus is a genus of 12 accepted species of flowering plants in the family Ericaceae, native to temperate regions of the Mediterranean, western Europe, the Canary Islands and North America, and commonly called madrones or strawberry trees. The name Arbutus was taken by taxonomists from Latin, where it referred to the species now designated Arbutus unedo.

<i>Prunus virginiana</i> Species of plant

Prunus virginiana, commonly called bitter-berry, chokecherry, Virginia bird cherry, and western chokecherry, is a species of bird cherry native to North America.

<span class="mw-page-title-main">Curry tree</span> Species of flowering plant

The curry tree or Bergera koenigii, is a tropical and sub-tropical tree in the family Rutaceae, native to Asia. The plant is also sometimes called sweet neem, though M. koenigii is in a different family to neem, Azadirachta indica, which is in the related family Meliaceae.

<i>Rubus parviflorus</i> Berry and plant

Rubus parviflorus, commonly called thimbleberry, is a species of Rubus native to northern temperate regions of North America. The plant has large hairy leaves and no thorns. It bears edible red fruit similar in appearance to a raspberry, but shorter, almost hemispherical. It has not been commercially developed for the retail berry market, but is cultivated for landscapes.

Anal bleaching is the process of lightening the color of the skin around the anus. It is done for cosmetic purposes, to make the color of the anus more uniform with the surrounding area. Some treatments are applied in an office or salon by a cosmetic technician and others are sold as cream that can be applied at home.

<i>Arctous alpina</i> Species of flowering plant

Arctous alpina, the alpine bearberry, mountain bearberry or black bearberry, is a dwarf shrub in the heather family Ericaceae. The basionym of this species is Arbutus alpinaL..

<i>Cornus sericea</i> Species of flowering plant

Cornus sericea, the red osier or red-osier dogwood, is a species of flowering plant in the family Cornaceae, native to much of North America. It has sometimes been considered a synonym of the Asian species Cornus alba. Other names include red brush, red willow, redstem dogwood, redtwig dogwood, red-rood, American dogwood, creek dogwood, and western dogwood.

<span class="mw-page-title-main">Berry (botany)</span> Botanical fruit with fleshy pericarp, containing one or many seeds

In botany, a berry is a fleshy fruit without a stone (pit) produced from a single flower containing one ovary. Berries so defined include grapes, currants, and tomatoes, as well as cucumbers, eggplants (aubergines), persimmons and bananas, but exclude certain fruits that meet the culinary definition of berries, such as strawberries and raspberries. The berry is the most common type of fleshy fruit in which the entire outer layer of the ovary wall ripens into a potentially edible "pericarp". Berries may be formed from one or more carpels from the same flower. The seeds are usually embedded in the fleshy interior of the ovary, but there are some non-fleshy exceptions, such as Capsicum species, with air rather than pulp around their seeds.

<span class="mw-page-title-main">Arbutin</span> Glycoside

beta-Arbutin, also known as β-arbutin or by its International Nomenclature of Cosmetic Ingredients (INCI) name, arbutin, is a glycosylated derivative of hydroquinone. β-Arbutin is naturally present in the leaves and bark of a variety of plants, notably the bearberry plant, Arctostaphylos uva-ursi. Utilized as a biosynthetic active ingredient in topical treatments for skin lightening, β-arbutin is aimed at addressing hyperpigmentation issues. Its mechanism of action involves inhibiting the activity of tyrosinase, an essential enzyme for melanin synthesis in the human skin, thereby leading to a reduction in hyperpigmentation. It is important to distinguish β-arbutin from its structurally similar stereoisomer, α-arbutin, which exhibits similar effects in clinical applications.

<i>Arctostaphylos glauca</i> Species of tree

Arctostaphylos glauca is a species of manzanita known by the common name bigberry manzanita. It is native to California and Baja California, where it grows in the chaparral and woodland of coastal and inland hills.

<i>Sambucus cerulea</i> Species of tree

Sambucus cerulea or Sambucus nigra ssp. cerulea, with the common names blue elderberry and blue elder, is a coarse textured shrub species of elder in the family Adoxaceae.

Kinnikinnick is a Native American and First Nations herbal smoking mixture, made from a traditional combination of leaves or barks. Recipes for the mixture vary, as do the uses, from social, to spiritual to medicinal.

Arctostaphylos rubra is a species of flowering plant in the heath family and the genus Arctostaphylos, the manzanitas and bearberries. Common names include red fruit bearberry, alpine bearberry, arctic bearberry, red manzanita, and ravenberry. It is native to Eurasia and northern North America from Alaska through most of Canada to Greenland. There is also one population in the contiguous United States, located in the Absaroka Mountains of Wyoming.

<span class="mw-page-title-main">Wild edible and medicinal plants of British Columbia</span>

There are numerous wild edible and medicinal plants in British Columbia that are used traditionally by First Nations peoples. These include seaweeds, rhizomes and shoots of flowering plants, berries, and fungi.

<span class="mw-page-title-main">Spruce broom rust</span> Species of fungus

Spruce broom rust or yellow witches' broom rust is a fungal plant disease caused by the basidiomycete fungus known as Chrysomyxa arctostaphyli. It occurs exclusively in North America, with the most concentrated outbreaks occurring in northern Arizona and southern Colorado on blue and Engelmann spruce, as well as in Alaska on black and white spruce. This disease alternates its life cycle between two hosts, with the spruce serving as the primary host and bearberry serving as the secondary or alternate host. The name for the disease comes from the distinctive “witches broom”, commonly yellow in color, which forms on the spruce after young needles have been infected. Management must be carried out through physical or mechanical methods, such as the pruning of brooms or the removal of the secondary host from the area, because no chemical control measures have yet been determined to be economically effective. Generally, spruce broom rust is seen as a mostly cosmetic issue, and it is very rarely the direct cause of tree death; however, research has shown a reduction in overall productivity and health of infected trees, making it an important issue for logging and timber companies.

<i>Rubus tricolor</i> Species of evergreen prostrate shrub native to southwestern China

Rubus tricolor is an evergreen prostrate shrub, native to southwestern China. Leaves are dark green above, pale green below, and stems have red bristles. It has white flowers in summer and edible red fruit. It grows approximately 0.3 m (0.98 ft) high and usually forming a vigorously spreading, dense mat. In cultivation, it is mainly used as groundcover. Common names include Chinese bramble, groundcover bramble, creeping bramble, Korean raspberry, Himalayan bramble, and groundcover raspberry. In Chinese, it is called 三色莓.

<i>Ehretia tinifolia</i> Species of tree

Ehretia tinifolia is a woody, perennial tree, usually 0.5 to 3 m in height, branched from the base, from reddish-brown to red-purple bark, exfoliating ; The leaves are coriaceous, elliptic, from 1 to 3.3 cm long. The flower is urceolate, white to Mexican pink and grouped in clusters of five to eight flowers. The plant can reproduce vegetatively from branches that are buried, but this type of reproduction is rare.

References

  1. NatureServe (2023). "Arctostaphylos uva-ursi Bearberry". NatureServe Explorer. Arlington, Virginia: NatureServe. Retrieved 17 April 2023.
  2. 1 2 "Arctostaphylos uva-ursi (L.) Spreng". Plants of the World Online . Royal Botanic Gardens, Kew . Retrieved 26 March 2024.
  3. 1 2 3 4 5 6 7 8 9 10 11 "Arctostaphylos uva-ursi (L.) Spreng; E-Flora: Electronic atlas of the flora of British Columbia; In: Klinkenberg, Brian. (Editor)". E-Flora BC, Department of Geography, University of British Columbia Herbarium. 2018. Archived from the original on 2018-04-04. Retrieved 2019-08-27.
  4. 1 2 3 4 5 6 7 8 "Common bearberry". Alberta Plant Watch, Government of Alberta. 2019. Retrieved 2019-08-27.
  5. 1 2 3 4 "Plant fact sheet: Bearberry (Arctostaphylos uva-ursi)" (PDF). USDA NRCS Northeast Plant Materials Program. 31 January 2002.
  6. Casebeer, M. (2004). Discover California Shrubs. Sonora, California: Hooker Press. ISBN   0-9665463-1-8.
  7. 1 2 3 4 5 6 7 8 9 10 11 12 "Arctostaphylos uva-ursi; 'Massachusetts'". Missouri Botanical Garden. 2019. Retrieved 27 August 2019.
  8. 1 2 3 The Complete Guide to Edible Wild Plants. United States Department of the Army. New York: Skyhorse Publishing. 2009. p. 28. ISBN   978-1-60239-692-0. OCLC   277203364.{{cite book}}: CS1 maint: others (link)
  9. 1 2 3 Clapham, Arthur; Tutin, Thomas; Warburg, Frederic (1989). Excursion Flora of the British Isles (Third ed.). Cambridge University Press. p. 231. ISBN   0521232902.
  10. Pegg, Ronald B.; Rybarczyk, Anna; Amarowicz, Ryszard (2008). "Chromatographic separation of tannin fractions from a bearberry leaf (Arctostaphylos Uva-ursi L. Sprengel) extract by Se-HPLC". Polish Journal of Food and Nutrition Sciences. 58 (4): 485–490. doi: 10.17221/234/2008-cjfs . S2CID   37247418.
  11. 1 2 "Plants profile for Arctostaphylos uva-ursi (kinnikinnick)". USDA Plants. 2019. Retrieved 2019-08-27.
  12. "Arctostaphylos uva-ursi (L.) Spreng". World Flora Online . Retrieved 26 March 2024.
  13. Wells, Philip V. (2000). The Manzanitas of California. Lawrence, KS: University of Kansas. p. 13. ISBN   978-0-933994-22-5. The name Arctostaphylos is from Greek: arctos = bear, staphylos = bunch of grapes or berries; hence bearberry, pertaining redundantly to A. uva-ursi (Latin: uva = berry, ursi = of the bear).
  14. 1 2 3 Patterson, Patricia A. (1985). Field Guide to the Forest Plants of Northern Idaho (PDF). United States Department of Agriculture Forest Service. pp. 37–47.
  15. Reiner, Ralph E. (1969). Introducing the Flowering Beauty of Glacier National Park and the Majestic High Rockies. Glacier Park, Inc. p. 114.
  16. 1 2 3 4 5 6 7 "Uva ursi". Drugs.com. 19 July 2017. Retrieved 27 August 2019.
  17. 1 2 3 "Arbutin, CID 440936". PubChem, National Library of Medicine, US National Institutes of Health. 16 November 2019. Retrieved 19 November 2019.
  18. De Arriba, S. G; Naser, B; Nolte, K. U (2013). "Risk assessment of free hydroquinone derived from Arctostaphylos Uva-ursi folium herbal preparations". International Journal of Toxicology. 32 (6): 442–53. doi:10.1177/1091581813507721. PMID   24296864. S2CID   24225098.
  19. Hellson, John C. (1974). Ethnobotany of the Blackfoot Indians. Ottawa: National Museums of Canada. p. 101.
  20. Benoliel, Doug (2011). Northwest Foraging: The Classic Guide to Edible Plants of the Pacific Northwest (Rev. and updated ed.). Seattle, WA: Skipstone. p. 107. ISBN   978-1-59485-366-1. OCLC   668195076.
  21. Sanderson, Helen; Renfrew, Jane M. (2005). Prance, Ghillean; Nesbitt, Mark (eds.). The Cultural History of Plants. Routledge. p. 99. ISBN   0415927463.
  22. Niering, William A.; Olmstead, Nancy C. (1985) [1979]. The Audubon Society Field Guide to North American Wildflowers, Eastern Region. Knopf. p. 497. ISBN   0-394-50432-1.
  23. Whitney, Stephen (1985). Western Forests (The Audubon Society Nature Guides). New York: Knopf. p.  418. ISBN   0-394-73127-1.
  24. Moerman, Daniel E. (15 August 1998). "Arctostaphylos uva-ursi". Native American ethnobotany. pp. 87–88. ISBN   0-88192-453-9.
  25. Barr, Claude A. (1983). Jewels of the plains : wild flowers of the Great Plains grasslands and hills. Minneapolis: University of Minnesota Press. pp. 26–27. ISBN   0-8166-1127-0.