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''Agoseris aurantiaca'' is a species of plants in the sunflower family, commonly called orange agoseris or mountain dandelion. It is widespread and common in western North America from Alaska and the Northwest Territories in Canada southward to California, Arizona, and New Mexico, and eastward as far as the Rocky Mountains and the Black Hills. There are also isolated populations in the Chic-Choc Mountains on the Gaspe Peninsula and in the Otish Mountains of central Quebec.〔(Biota of North America Program 2014 county distribution map )〕〔(Calflora taxon report, University of California, ''Agoseris aurantiaca'' (Hook.) E. Greene orange agoseris, orange flowered agoseris )〕〔〔Cody, W. J. 1996. Flora of Yukon Territory i–xvii, 1–669. NRC Research Press, Ottawa. 〕〔Hultén, E. 1968. Flora of Alaska i–xxi, 1–1008. Stanford University Press, Stanford〕〔Porsild, A. E. & W. Cody. 1980. Checklist of the Vascular Plants of the Northwest Territories Canada i–viii, 1–607. National Museum of Natural Sciences, Ottawa〕 ''Agoseris aurantiaca'' is primarily a species of mountainous regions and may be found in wet to dry habitats. It is a perennial herb producing a basal rosette of leaves. There is no stem, but it does produce several stem-like peduncles, each peduncle bearing a single flower head surrounded by glabrous to hairy phyllaries. The head is ligulate, containing several ray florets but no disc florets. The florets are most commonly orange but are occasionally yellow, pink, red, or purple. "Aurantiaca" means "orange-red".〔Great Basin Wildflowers, Laird R. Blackwell, 2006, Morris Book Publishing LLC., ISBN 0-7627-3805-7〕 The flower head matures into a ball-like head of beaked achenes, each with a terminal pappus of numerous, white bristles.〔(Flora of North America, ''Agoseris aurantiaca'' )〕 ;Varieties〔〔 *''Agoseris aurantiaca'' var. ''aurantiaca'' - most of species range *''Agoseris aurantiaca'' var. ''purpurea'' (A.Gray) Cronquist - southern Rocky Mountains ==Use among Native Americans== A cold infusion of this plant is used by the Ramah Navajo for protection against witches.〔(【引用サイトリンク】title=Agoseris auranitaca )〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Agoseris aurantiaca」の詳細全文を読む スポンサード リンク
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