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Snow Buckwheat

Eriogonum niveum Dougl. ex Benth.

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Eriogonum niveum is a highly variable species with a multitude of minor expressions that do not appear to have any biogeographic or taxonomic significance. The species is found mainly on the grassy plains east of the Cascade Range in southern British Columbia, west-central Idaho, northeastern Oregon, and eastern Washington. Some populations closely approach E. strictum var. proliferum, but the densely lanate leaves and semileaflike to leaflike bracts nearly always distinguish E. niveum from that taxon where their ranges overlap. It may well prove that E. niveum would be better treated as a subspecies of E. strictum, but the nomenclatural combination is not available and it is not suggested here. The plants do well in cultivation.

N. J. Turner et al. (1980) reported that the snow wild buckwheat was used by the Okanagan-Colville people for colds and as a wash for cuts.

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Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
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Flora of North America Vol. 5 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
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Description

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Herbs, erect to decumbent or prostrate, loosely matted, not scapose, 2-6 × 1-4(-6) dm, tomentose to floccose. Stems spreading, with or without persistent leaf bases, up to 4 height of plant; caudex stems absent or spreading to matted; aerial flowering stems erect to spreading or decument to prostrate, slender, solid, not fistulose, (0.5-)1-3 dm, tomentose to floccose.  Leaves 1 per node, sheathing up stems (1-)3-10(-12) cm; petiole often twisted or curled, 1-10 cm, usually tomentose; blade lanceolate or broadly lanceolate to elliptic or narrowly ovate, (1-)1.5-6(-8) × 0.6-1.5 cm, densely lanate on both surfaces or densely white-tomentose abaxially and grayish-tomentose to floccose adaxially, margins plane, rarely brownish.    Inflorescences cymose, 10-30 × 50-250 cm; branches dichotomous, tomentose to floccose; bracts 3, semileaflike to leaflike, lanceolate to narrowly elliptic, and 5-30 × 3-20 mm proximally, scalelike, triangular, and 1-4(-5) mm distally. Peduncles absent. Involucres 1 per node, turbinate, 3-5 × 2-3 mm, tomentose to floccose; teeth 5, erect, 0.5-1.5 mm. Flowers 3-6 mm; perianth cream to reddish, glabrous; tepals connate proximally, dimorphic, those of outer whorl oblong to oval, 3-6 × 2-4 mm, those of inner whorl oblanceolate to oblong, 4-6 × 1-2 mm; stamens included to slightly exserted, 2-5 mm; filaments pilose proximally. Achenes light brown to brown, (3.5-)4-4.5(-5) mm, glabrous.
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cc-by-nc-sa-3.0
copyright
Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of North America Vol. 5 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of North America @ eFloras.org
editor
Flora of North America Editorial Committee
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eFloras.org
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Distribution

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B.C.; Idaho, Oreg., Wash.
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Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of North America Vol. 5 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of North America @ eFloras.org
editor
Flora of North America Editorial Committee
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eFloras.org
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Flowering/Fruiting

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Flowering Jun-Oct.
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Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of North America Vol. 5 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of North America @ eFloras.org
editor
Flora of North America Editorial Committee
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eFloras.org
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Habitat

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Sandy to gravelly flats, slopes, bluffs, and rocky, often volcanic outcrops, mixed grassland and sagebrush communities, montane conifer woodlands; 30-1100(-1300)m.
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cc-by-nc-sa-3.0
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Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of North America Vol. 5 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of North America @ eFloras.org
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Flora of North America Editorial Committee
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eFloras.org
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Synonym

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Eriogonum niveum subsp. decumbens (Bentham) S. Stokes; E. niveum subsp. dichotomum (Douglas ex Bentham) S. Stokes
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Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of North America Vol. 5 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of North America @ eFloras.org
editor
Flora of North America Editorial Committee
project
eFloras.org
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Eriogonum niveum

provided by wikipedia EN

Eriogonum niveum is a species of flowering plant in the buckwheat family known by the common name snow buckwheat. It is native to the Pacific Northwest of North America, where it occurs in British Columbia, Washington, Oregon, and Idaho.[1][2][3] It flowers late in the summer.[4]

Description

This wild buckwheat is quite variable in appearance.[2] It has spreading stems that grow usually grow erect, but may be decumbent or prostrate along the ground. It forms a hairy mat generally up to 40 to 60 centimetres (16 to 24 inches)[1][2] tall and wide, but it can reach a height and width of one meter at times.[5] Most of the leaves are in a tuft on the woody base of the plant. They are up to 6 centimeters long and have a woolly texture. The inflorescence is a series of branching stems with sparse clumps of small white, pink, or reddish flowers.[1][2][4]

Eriogonum heracleoides, the parsnipflower buckwheat

Native American groups had several medicinal uses for this plant. It was used as a remedy for colds and cuts.[6] The roots of this plant and Eriogonum heracleoides were brewed into a tea which was taken to treat diarrhea.[5] This plant grows on grassy plains, sagebrush deserts, and ponderosa pine forests mainly east of the Cascade Range.[1][2] It is a pioneer species, taking hold in thin, dry soils where other plants have not yet established.[5] Other plants in the habitat may include Artemisia tridentata, Purshia tridentata, Juniperus occidentalis, Pseudoroegneria spicata, Sporobolus airoides, Elymus wawawaiensis, Poa secunda, Achnatherum hymenoides, and Nassella comata.[5]

This plant can be cultivated. It can be planted in areas that have little soil, such as mine spoils. It can be used in xeriscaping. The cultivar 'Umatilla' is used for rangeland restoration and soil stabilization.[5]

In the wild this plant provides food for mule deer and bighorn sheep. It is also utilized by the rare Mormon metalmark butterfly.[5]

References

  1. ^ a b c d Eriogonum niveum. Washington Burke Museum.
  2. ^ a b c d e Eriogonum niveum. Flora of North America.
  3. ^ Eriogonum niveum. NatureServe.
  4. ^ a b Taylor, Ronald J. (1994) [1992]. Sagebrush Country: A Wildflower Sanctuary (rev. ed.). Missoula, MT: Mountain Press Pub. Co. p. 30. ISBN 0-87842-280-3. OCLC 25708726.
  5. ^ a b c d e f Eriogonum niveum. USDA NRCS Plant Guide.
  6. ^ Eriogonum niveum. University of Michigan Ethnobotany.

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Eriogonum niveum: Brief Summary

provided by wikipedia EN

Eriogonum niveum is a species of flowering plant in the buckwheat family known by the common name snow buckwheat. It is native to the Pacific Northwest of North America, where it occurs in British Columbia, Washington, Oregon, and Idaho. It flowers late in the summer.

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