Empetrum nigrum

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Black crowberry
Empetrum nigrum by Maseltov 2.jpg
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Ericales
Family: Ericaceae
Genus: Empetrum
Species:
E. nigrum
Binomial name
Empetrum nigrum
Synonyms [2]
  • Chamaetaxus nigra(L.) Bubani
  • Empetrum arcticumV.N.Vassil.
  • Empetrum crassifoliumRaf.
  • Empetrum eamesii subsp. hermaphroditum(Hagerup) D.Löve
  • Empetrum hermaphroditumHagerup
  • Empetrum hermaphroditum var. americanumV.N.Vassil.
  • Empetrum mediumCarmich.
  • Empetrum nigrum f. cylindricumLepage
  • Empetrum nigrum var. hermaphroditum(Hagerup) T.Sørensen
  • Empetrum nigrum subsp. hermaphroditum(Hagerup) Böcher
  • Empetrum nigrum f. purpureum(Raf.) Fernald
  • Empetrum nigrum var. purpureum(Raf.) A.DC.
  • Empetrum purpureumRaf.

Empetrum nigrum, crowberry, [3] black crowberry, mossberry, or, in western Alaska, Labrador, etc., blackberry, is a flowering plant species in the heather family Ericaceae with a near circumboreal distribution in the Northern Hemisphere. It is usually dioecious, but there is a monoecious [4] tetraploid subspecies, Empetrum nigrum subsp. hermaphroditum, which occurs in more northerly locations and at higher altitude. [5] [6] . This taxon is in some cases considered its own species, and not a subspecies. [7]

Contents

Description

Empetrum nigrum is a low growing, evergreen shrub with a creeping habit. [8] The leaves are 3–6 millimetres (1814 inch) long, arranged alternately along the stem. The stems are red when young and then fade to brown. It blooms between May and June. [9] The flowers are small and not very noticeable, [8] with greenish-pink sepals that turn reddish purple. [10] The round fruits are drupes, 4–6 mm (1814 in) wide, usually black or purplish-black but occasionally red. [11]

Subspecies

Distribution and habitat

The species has a near circumboreal distribution in the Northern Hemisphere. [7] It is also native in the Falkland Islands. [14] [15]

Evolutionary biologists have explained the striking geographic distribution of crowberries as a result of long-distance migratory birds dispersing seeds from one pole to the other. [16]

Empetrum nigrum grows in bogs [17] and other acidic soils in shady, moist areas.

Ecology

The moth species Glacies coracina , Zygaena exulans , and Hadula melanopa feed on the plant. [9]

The metabolism and photosynthetic parameters of Empetrum can be altered in winter-warming experiments. [18]

Empetrum nigrum has allelopathic properties (e.g. hampering seed germination and root extension of other plants) but the strength of these are dependent on the soil type. [19]

Uses

The fruit is edible and can be dried, [20] but has an acidic taste. It is often mixed with other berries in dishes like pies and puddings. [17]

It is abundant in Scandinavia and treasured for its ability to make liqueur, wine, juice, or jelly. In subarctic areas, the plant has been a vital addition to the diet of the Inuit and the Sami.[ citation needed ] It is used to make Alaskan ice cream. [17] The Dena'ina (Tanaina) harvest it for food, sometimes storing in quantity for winter, sometimes mixed with lard or oil.[ citation needed ]

The species can also be grown as a ground cover, [21] or as an ornamental plant in rock gardens, notably the yellow-foliaged cultivar 'Lucia'. The fruit is high in anthocyanin pigment and can be used to make a natural dye. [21]

In culture

The Scottish Highlands Clan Maclean's badge is believed to be E. nigrum. [22]

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References

  1. Sp. Pl. 2: 1022. 1753 [1 May 1753] "Plant Name Details for Empetrum nigrum". IPNI . Retrieved 1 December 2009.
  2. "Empetrum nigrum L." Plants of the World Online. Board of Trustees of the Royal Botanic Gardens, Kew. 2017. Retrieved 11 July 2020.
  3. Chisholm, Hugh, ed. (1911). "Crowberry"  . Encyclopædia Britannica . Vol. 7 (11th ed.). Cambridge University Press. p. 513.
  4. Jepson Flora Project (ed.). "Empetrum nigrum". Jepson eFlora. The Jepson Herbarium, University of California, Berkeley.
  5. Stace, C. A. (2010) New Flora of the British Isles, 3rd edition. Cambridge University press. ISBN   978-0-521-70772-5. pp. 525.
  6. Kråkbär (in Swedish)
  7. 1 2 "Empetrum hermaphroditum Hagerup". www.gbif.org. Retrieved 2024-12-29.
  8. 1 2 Barbara Coffin; Lee Pfannmuller (1988). Minnesota's Endangered Flora and Fauna. U of Minnesota Press. p. 96. ISBN   978-0-8166-1689-3.
  9. 1 2 Reader's Digest Field Guide to the Wild Flowers of Britain. Reader's Digest. 1981. p. 220. ISBN   978-0-276-00217-5.
  10. "Empetrum nigrum in Flora of North America @ efloras.org". www.efloras.org. Retrieved 2020-12-30.
  11. "Jepson eFlora: Empetrum nigrum". University and Jepson Herbaria . University of California, Berkeley . Retrieved 15 May 2017.
  12. English Names for Korean Native Plants (PDF). Pocheon: Korea National Arboretum. 2015. p. 456. ISBN   978-89-97450-98-5. Archived from the original (PDF) on 25 May 2017. Retrieved 24 December 2016 via Korea Forest Service.
  13. "Empetrum subholarcticum V.N.Vassil". www.worldfloraonline.org. Retrieved 15 February 2021.
  14. "Empetrum nigrum". Germplasm Resources Information Network . Agricultural Research Service, United States Department of Agriculture . Retrieved 15 December 2017.
  15. "Empetrum nigrum L." PLANTS.
  16. Magnus Popp; Virginia Mirré; Christian Brochmann (2011). Peter H. Raven (ed.). "A single Mid-Pleistocene long-distance dispersal by a bird can explain the extreme bipolar disjunction in crowberries". PNAS . 108 (16). Missouri Botanical Garden, St. Louis, Missouri: 6520–6525. doi: 10.1073/pnas.1012249108 . PMC   3081031 . PMID   21402939.
  17. 1 2 3 Francis-Baker, Tiffany (2021). Concise Foraging Guide. The Wildlife Trusts. London: Bloomsbury. p. 31. ISBN   978-1-4729-8474-6.
  18. Bokhorst, S; Bjerke, JW; Davey, MP; Taulavuori, K; Taulavuori, E; Laine, K; Callaghan, TV; Phoenix, GK (2010). "Impacts of extreme winter warming events on plant physiology in a sub-Arctic heath community". Physiologia Plantarum . 140 (2): 128–140. Bibcode:2010PPlan.140..128B. doi:10.1111/j.1399-3054.2010.01386.x. PMID   20497369.
  19. Ryde, Ingvild; Kristinsdóttir, Jóhanna; Halmová, Marika; Baussay, Augustin; Bråthen, Kari Anne; Neilson, Elizabeth; Jónsdóttir, Ingibjörg. "Volcanic soils alleviate the allelopathic capacity of Empetrum nigrum in degraded tundra ecosystems".{{cite journal}}: Cite journal requires |journal= (help)
  20. United States Department of the Army (2009). The Complete Guide to Edible Wild Plants. New York: Skyhorse Publishing. p. 47. ISBN   978-1-60239-692-0. OCLC   277203364.
  21. 1 2 "Empetrum nigrum - L." Plants for a Future. Retrieved 15 May 2017.
  22. Adam; Innes of Learney (1970), pp. 541–543.