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Eriophorum
・ Eriophorum angustifolium
・ Eriophorum callitrix
・ Eriophorum gracile
・ Eriophorum scheuchzeri
・ Eriophorum vaginatum
・ Eriophorum viridicarinatum
・ Eriophyes
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・ Eriophyes tiliae
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・ Eriophyidae
・ Eriophyllum
・ Eriophyllum ambiguum


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Eriophorum : ウィキペディア英語版
Eriophorum

''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'' )〕〔(Flora of China, Vol. 23 Page 174, 羊胡子草属 yang hu zi cao shu, ''Eriophorum'' Linnaeus, Sp. Pl. 1: 52. 1753. )〕〔(Kew World Checklist of Selected Plant Families )〕
They are herbaceous perennial plants with slender, grass-like leaves. The seed heads are covered in a fluffy mass of cotton which are carried on the wind to aid dispersal. 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.
==Selected species==
The following species are included:〔
*''Eriophorum angustifolium'' Honck. – widespread across Europe, Asia, North America
*''Eriophorum'' × ''beringianum'' Raymond – Alaska including Aleutians; Magadan region of Russia (hybrid ''E. angustifolium'' × ''E. chamissonis'')
*''Eriophorum brachyantherum'' Trautv. & C.A.Mey. – Scandinavia, northern Russia, Mongolia, Korea, Alaska, northern Canada
*''Eriophorum callitrix'' Cham. ''ex'' C.A.Mey. – Siberia, Russian Far East, Alaska, Canada, Greenland, Montana, Wyoming
*''Eriophorum chamissonis'' C.A.Mey. – Siberia, Russian Far East, Korea, Mongolia, Alaska, Canada, Greenland, northern and western United States
*''Eriophorum crinigerum'' (A.Gray) Beetle – Oregon, northwestern California
*''Eriophorum'' × ''fellowsii'' (Fernald) M.S.Novos. – Ontario, Maine, Massachusetts (hybrid ''E. virginicum'' × ''E. viridicarinatum'')
*''Eriophorum gracile'' Koch – much of Europe; northern and Central Asia; China, Tibet, Mongolia, Alaska, Canada, northern United States
*''Eriophorum'' × ''gracilifolium'' M.S.Novos. – European Russia (hybrid ''E. gracile'' × ''E. latifolium'')
*''Eriophorum humile'' Turcz. – Altai, Tuva, Kazakhstan, Mongolia, Amur
*''Eriophorum latifolium'' Hoppe – much of Europe; Caucasus, Turkey, Mongolia
*''Eriophorum'' × ''medium'' Andersson – scattered locations in Finland, Norway, Russia, Alaska, Quebec, Labrador (hybrid ''E. chamissonis'' × ''E. scheuchzeri'')
*''Eriophorum'' × ''polystachiovaginatum'' Beauverd – France (hybrid ''E. angustifolium'' × ''E. vaginatum'')
*''Eriophorum'' × ''pylaieanum'' Raymond – scattered locations in Canada and Alaska (hybrid ''E. chamissonis'' × ''E. vaginatum'')
*''Eriophorum'' × ''rousseauianum'' Raymond – Alaska, Quebec (hybrid ''E. angustifolium'' × ''E. scheuchzeri'')
*''Eriophorum scabriculme'' (Beetle) Raymond – Vietnam
*''Eriophorum scheuchzeri'' Hoppe – much of Europe; northern and Central Asia including Siberia, Xinjiang, Himalayas, Alaska, Greenland, Canada, mountains of western United States
*''Eriophorum tenellum'' Nutt. – eastern Canada and northeastern United States from Nunavut and Labrador to New Jersey
*''Eriophorum tolmatchevii'' M.S.Novos. – Krasnoyarsk, Yakutiya
*''Eriophorum transiens'' Raymond – Guizhou
*''Eriophorum vaginatum'' L. – most of genus range
*''Eriophorum virginicum'' L. – eastern North America from Labrador to Tennessee, west to Michigan
*''Eriophorum viridicarinatum'' (Engelm.) Fernald – Canada including Arctic territories; northern United States

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