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Kalaallit Nunaat High Arctic Tundra
The Kalaallit Nunaat high arctic tundra ecoregion (WWF ID: NA1112) covers the coastal areas of northern and eastern Greenland (called ''Kalaallit Nunaat'' in the Greenlandic language). Areas inland of this strip of land are either covered in ice or bare rock. About one-third of the region is covered by mosses and lichens, and another 3% by herbaceous vegetation and shrubs. The largest national park in the world, Northeast Greenland National Park, protects a majority of the land within the ecoregion. Location and description The ecoregion covers the coastal fringe of Greenland, from 75° N latitude at Melville Bay, around the northern coast to 70° N at Scoresby Bay on the east coast. The coastal bands south of this are in the Kalaallit Nunaat low arctic tundra ecoregion. The coast is rugged, although less so than the south, with deep inlets from the sea. The most ice-free of this coastal band is on the northeast, in the region of Peary Land. The lower soil is permafrost. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Qaanaaq
Qaanaaq (), formerly known as Thule or New Thule, is the main town in the northern part of the Avannaata municipality in northwestern Greenland. It is one of the northernmost cities and towns, northernmost towns in the world. The inhabitants of Qaanaaq speak the local Inuktun language and many also speak Greenlandic language, Kalaallisut and Danish language, Danish. The town has a population of 646 as of 2020. Geography Qaanaaq is located in the northern entrance of the Inglefield Fjord. The village of Qeqertat is located in the Harvard Islands, near the head of the fjord. History The Qaanaaq area in northern Greenland was first settled around 2000 BC by the Paleo-Eskimo migrating from the Canadian Arctic. In 1818, Sir John Ross (Royal Navy officer), John Ross's expedition made first contact with nomadic Inuktun (Polar Eskimos) in the area. James Saunders (naval commander), James Saunders's expedition aboard HMS North Star (1824), HMS ''North Star'' was marooned in North St ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hot Springs
A hot spring, hydrothermal spring, or geothermal spring is a spring produced by the emergence of geothermally heated groundwater onto the surface of the Earth. The groundwater is heated either by shallow bodies of magma (molten rock) or by circulation through faults to hot rock deep in the Earth's crust. In either case, the ultimate source of the heat is radioactive decay of naturally occurring radioactive elements in the Earth's mantle, the layer beneath the crust. Hot spring water often contains large amounts of dissolved minerals. The chemistry of hot springs ranges from acid sulfate springs with a pH as low as 0.8, to alkaline chloride springs saturated with silica, to bicarbonate springs saturated with carbon dioxide and carbonate minerals. Some springs also contain abundant dissolved iron. The minerals brought to the surface in hot springs often feed communities of extremophiles, microorganisms adapted to extreme conditions, and it is possible that life on Earth had its ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arctagrostis Latifolia)
''Arctagrostis'' is a genus of Arctic and Subarctic plants in the grass family, native to colder parts of Europe, Asia, and North America. ; SpeciesFredskild, B. 1996. A phytogeographical study of the vascular plants of West Greenland (62°20'-74°00'N). BioScience 45: 1–157 * ''Arctagrostis arundinacea'' (Trin.) Beal - Siberia, Russian Far East, Alaska including Aleutians, Yukon, Northwest Territories, Alberta, British Columbia * ''Arctagrostis latifolia'' (R.Br.) Griseb. - Finland, Norway, Svalbard, European + Asiatic Russia, Kazakhstan, Mongolia, Alaska, Greenland, Canada (Yukon, Northwest Territories, Nunavut, Alberta, Manitoba, British Columbia, Labrador, Ontario, Québec) ; formerly included see '' Dupontia'' * ''Arctagrostis humilis - Dupontia fisheri'' See also * List of Poaceae genera The true grasses ( Poaceae) are one of the largest plant families, with around 12,000 species and roughly 800 genera. They contain, among others, the cereal crop species and other ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eriophorum Scheuchzeri
''Eriophorum scheuchzeri'' is a species of flowering plant in the sedge family known by the common names Scheuchzer's cottongrass and white cottongrass. It has an arctic circumpolar and circumboreal distribution in the Northern Hemisphere. It can be found in Alaska, across Canada, in the Arctic islands, Greenland, Iceland, and across Eurasia.Aiken, S.G., et al. 2007Flora of the Canadian Arctic Archipelago: Descriptions, Illustrations, Identification, and Information Retrieval.NRC Research Press, National Research Council of Canada, Ottawa. Disjunct occurrences exist in the Rocky Mountains, in the high mountains of southern Europe (the Pyrenees, Alps, and the Caucasus) and on Mount Daisetsu in Japan and some other Asian mountains.Ladyman, J.A.R''Eriophorum scheuchzeri'' Hoppe (white cottongrass): A technical conservation assessment. nline USDA Forest Service, Rocky Mountain Region. March 2, 2006. Description This species is a perennial herb producing colonies via its rhizom ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carex Stans
''Carex'' is a vast genus of more than 2,000 species of grass-like plants in the family (biology), family Cyperaceae, commonly known as sedges (or seg, in older books). Other members of the family Cyperaceae are also called sedges, however those of genus ''Carex'' may be called true sedges, and it is the most species-rich genus in the family. The study of ''Carex'' is known as caricology. Description All species of ''Carex'' are perennial plant, perennial, although some species, such as ''Carex bebbii, C. bebbii'' and ''Carex viridula, C. viridula'' can fruit in their first year of growth, and may not survive longer. They typically have rhizomes, stolons or short rootstocks, but some species grow in tufts (caespitose). The culm (botany), culm – the flower-bearing stalk – is unbranched and usually erect. It is usually distinctly triangular in section. The leaf, leaves of ''Carex'' comprise a blade, which extends away from the stalk, and a sheath, which encloses part ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eriophorum Triste
''Eriophorum'' (cottongrass, cotton-grass or cottonsedge) is a genus of flowering plants in the family Cyperaceae, the sedge family. They are found throughout the arctic, subarctic, and temperate portions of the Northern Hemisphere in acid bog habitats, being particularly abundant in Arctic tundra regions.Flora Europaea''Eriophorum''/ref> They are herbaceous perennial plants with slender, grass-like leaves. The seed heads are covered in a fluffy mass of cotton-like fibers which are carried on the wind to aid dispersal. The cotton grass also maintains a height of 12 inches and around 2 inches in water. In cold Arctic regions, these masses of translucent fibres also serve as 'down' – increasing the temperature of the reproductive organs during the Arctic summer by trapping solar radiation. Paper and the wicks of candles have been made of its fiber, and pillows stuffed with the same material. The leaves were formerly used in treating diarrhea, and the spongy pith of the stem for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carex Misandra
''Carex fuliginosa'', the short-leaved sedge, is a species of flowering plant in the family Cyperaceae The Cyperaceae are a family of graminoid (grass-like), monocotyledonous flowering plants known as sedges. The family is large, with some 5,500 known species described in about 90 genera, the largest being the "true sedges" genus ''Carex'' w ..., with a circumpolar distribution, and found in mountains further south; such as the eastern Alps, the Carpathians and the Rockies. It is wind-pollinated. References External links ''Carex fuliginosa'' in Flora of North America @ efloras.org fuliginosa Flora of Norway Flora of Svalbard Flora of Sweden Flora of Finland Flora of Germany Flora of Austria Flora of Czechoslovakia Flora of Poland Flora of Italy Flora of Slovenia Flora of Romania Flora of Bulgaria Flora of Ukraine Flora of North European Russia Flora of East European Russia Flora of Siberia Flora of Kamchatka Krai Flora of Khabarovsk Krai Flora of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carex Bigelowii
''Carex bigelowii'' is a species of sedge known by the common names Bigelow's sedge, Gwanmo sedge, and stiff sedge. It has an Arctic–alpine distribution in Eurasia and North America, and grows up to tall in a variety of habitats. Distribution ''Carex bigelowii'' has a circumpolar or circumboreal distribution, occurring throughout the northern latitudes of the Northern Hemisphere. It is present in Europe, Asia and North America, where it occurs from Alaska to Greenland, and in alpine climates as far south as Utah and Colorado. Description ''Carex bigelowii'' produces 3-angled stems up to tall, growing in a tuft or singly. The leaves are stiff and dark green, and the leaves of previous seasons may remain on the plant. The inflorescence is accompanied by a short bract. The inflorescence has 1–3 black pistillate spikes under 1–2 staminate spikes. The plant usually reproduces vegetatively, sprouting tillers from its rhizome. It also spreads via stolons. It has a thick roo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arctagrostis Latifolia
''Arctagrostis latifolia'', the wideleaf polargrass, is a widespread species of grass (family Poaceae), with a circumpolar distribution in the high Arctic. It is a tetraploid Polyploidy is a condition in which the cells of an organism have more than one pair of ( homologous) chromosomes. Most species whose cells have nuclei (eukaryotes) are diploid, meaning they have two sets of chromosomes, where each set contains ... with chromosome number 2n = 4x = 28. References Pooideae Flora of Norway Flora of Svalbard Flora of Finland Flora of North European Russia Flora of East European Russia Flora of Siberia Flora of the Russian Far East Flora of Kazakhstan Flora of Mongolia Flora of Alaska Flora of Subarctic America Flora of British Columbia Flora of Manitoba Flora of Ontario Flora of Quebec Flora of Labrador Flora of Greenland Plants described in 1852 Flora without expected TNC conservation status {{Pooideae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Betula Nana
''Betula nana'', the dwarf birch, is a species of birch in the family Betulaceae, found mainly in the tundra of the Arctic region. Description It is a monoecious, deciduous shrub growing up to high. The bark is non-peeling and shiny red-copper colored. The leaves are rounded, diameter, with a bluntly toothed margin. The leaves are a darker green on their upper surface. Leaf growth occurs after snow melt and become red in autumn. The wind-pollinated fruiting catkins are erect, long and broad. Distribution ''Betula nana'' is native to arctic and cool temperate regions of Greenland, Iceland, northern Europe, northern Asia and northern North America and it will grow in a variety of conditions. Outside of far northern areas, it is usually found growing only in mountains above , up to in Great Britain and in the Alps. Its northern range limit is on Svalbard, where it is confined to favourable sites. In the UK ''Betula nana'' is at its southern range limit, with many populations ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vaccinium Uliginosum
''Vaccinium uliginosum'' (bog bilberry, bog blueberry, northern bilberry or western blueberry) is a Eurasian and North American flowering plant in the genus ''Vaccinium'' within the heath family. Distribution ''Vaccinium uliginosum'' is native to cool temperate regions of the Northern Hemisphere, at low altitudes in the Arctic, and at high altitudes south to the Pyrenees, the Alps, and the Caucasus in Europe, the mountains of Mongolia, northern China, the Korean Peninsula and central Japan in Asia, and the Sierra Nevada in California and the Rocky Mountains in Utah in North America. It grows on wet acidic soils on heathland, moorland, tundra, and in the understory of coniferous forests, from sea level in the Arctic, up to altitude in the south of the range. Description ''Vaccinium uliginosum'' is a small deciduous shrub growing to tall, rarely tall, with brown stems (unlike the green stems of the closely related bilberry). The leaves are oval, long and wide, blue-green wit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Salix Arctica
''Salix arctica'', the Arctic willow, is a tiny creeping willow (family Salicaceae). It is adapted to survive in Arctic conditions, specifically tundras. Description ''S. arctica'' is typically a low shrub growing to only in height, rarely to , although it may reach in height in the Pacific Northwest. It has round, shiny green leaves long and broad; they are pubescent, with long, silky, silvery hairs. Like the rest of the willows, Arctic willow is dioecious, with male and female catkins on separate plants. As a result, the plant's appearance varies; the female catkins are red-coloured, while the male catkins are yellow-coloured.Jepson Flora''Salix arctica''/ref> Despite its small size, it is a long-lived plant, growing extremely slowly in the severe arctic climate; one in eastern Greenland was found to be 236 years old. Hybrids with '' Salix arcticola'' and ''Salix glauca'' are known. Distribution and habitat The Arctic willow grows in tundra and rocky moorland, and is th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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