Difference between revisions of "Arctous alpina"
Bot. Jahrb. Syst. 11: 144. 1889 ,.
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|name=Arbutus alpina | |name=Arbutus alpina | ||
|authority=Linnaeus | |authority=Linnaeus | ||
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|publication_title=Sp. Pl. | |publication_title=Sp. Pl. | ||
|publication_place=1: 395. 1753 | |publication_place=1: 395. 1753 | ||
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|name=Arctostaphylos alpina | |name=Arctostaphylos alpina | ||
|authority=(Linnaeus) Sprengel | |authority=(Linnaeus) Sprengel | ||
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}} {{Treatment/ID/Synonym | }} {{Treatment/ID/Synonym | ||
|name=Mairania alpina | |name=Mairania alpina | ||
|authority=(Linnaeus) Desvaux | |authority=(Linnaeus) Desvaux | ||
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}} | }} | ||
|hierarchy=Ericaceae;Ericaceae subfam. Arbutoideae;Arctous;Arctous alpina | |hierarchy=Ericaceae;Ericaceae subfam. Arbutoideae;Arctous;Arctous alpina | ||
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name=Arctous alpina | name=Arctous alpina | ||
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|authority=(Linnaeus) Niedenzu | |authority=(Linnaeus) Niedenzu | ||
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|subfamily=Ericaceae subfam. Arbutoideae | |subfamily=Ericaceae subfam. Arbutoideae | ||
|genus=Arctous | |genus=Arctous | ||
Latest revision as of 22:46, 5 November 2020
Shrubs 3–20(–30) cm; twigs terete, with persistent old leaves or petioles. Leaves: petiole winged, 1–4 mm, ciliate on margins, or hairy; blade obovate to oblanceolate, 4–15 × 0.7–8(–20) mm, base attenuate-cuneate, decurrent onto petiole, apex acute, obtuse, or rounded, surfaces rugose, glabrous or hairy. Inflorescences 2–4(–7)-flowered; bracts ovate, membranous. Pedicels 0.1–0.6 mm. Flowers: sepals pale green or yellow, 0.8–1.2 mm, apex acute; corolla yellow, whitish, or green (pale yellowish green), 3.5–4.5 mm, lobes recurved, greenish, rounded, 0.5 mm, glabrous; stamens 1–2 mm; anthers reddish, becoming yellow, 0.6–0.7 mm, horns 0.1–0.2 mm. Fruits black-purple, 6–9 mm diam. Pyrenes 2.7–4.6 × 2–3.6 mm. 2n = 26, 28.
Phenology: Flowering early summer.
Habitat: Tundra, gravelly beach ridges, lichen heaths, open, boggy, coniferous woods, dry, wind-swept and snow-free fellfields in arctic and alpine tundra
Elevation: 0-2500 m
Distribution
Greenland, Alta., B.C., Man., Nfld. and Labr., N.W.T., Nunavut, Ont., Que., Yukon, Alaska, Maine, N.H., n Europe, Asia.
Discussion
In Greenland, Arctous alpina reaches 77º north latitude on the eastern coast.
Selected References
None.