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Epilobium oreganum : ウィキペディア英語版 | Epilobium oreganum
''Epilobium oreganum'' is an uncommon species of flowering plant in the evening primrose family known by the common names Grants Pass willowherb and Oregon fireweed (though it is not a true fireweed). It is native to southern Oregon and northern California, where it is historically known mostly from the Klamath Mountains. It is currently confirmed to exist only in Josephine County, Oregon, and Trinity County, California, where it grows in boggy areas on serpentine soils.〔US Forest Service. (Conservation agreement for ''Hastingsia bracteosa'', ''H. atrogurpurea'', ''Gentiana setigera'', ''Epilobium oreganum'', and ''Viola primulifolia'' ssp. ''occidentalis'' and serpentine ''Darlingtonia'' wetlands and fens from southwestern Oregon and northwestern California ).〕 It is a perennial herb growing up to a meter in height with thin, hairless stems. The red-veined leaves are oval to lance-shaped and up to 9 centimeters long. The inflorescence bears flowers with pink petals just over a centimeter long and a protruding pistil. The fruit is a hairy, glandular capsule up to 4.5 centimeters long. ==References==
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