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''Eutrochium'' is a North American genus of herbaceous flowering plants in the sunflower family. They are commonly referred to as Joe-Pye weeds. They are native to the United States and Canada, and have non-dissected foliage and pigmented flowers. The genus includes all the purple-flowering North American species of the genus ''Eupatorium'' as traditionally defined.〔 (2006): (Molecular confirmation of the hybrid origin of ''Eupatorium godfreyanum'' (Asteraceae) ). ''Am. J. Bot.'' 93(2): 319-325. (PDf fulltext )〕 ''Eupatorium'' has recently undergone some revision and has been broken up into smaller genera.〔 (2000): Phylogeny and Phytogeography of ''Eupatorium'' (Eupatorieae, Asteraceae): Insights from Sequence Data of the nrDNA ITS Regions and cpDNA RFLP. ''Journal of Plant Research'' 113(1): 79-89. (HTML abstract)〕〔 (2000): Phylogeny and biogeography of ''Eupatorium'' (Asteraceae: Eupatorieae) based on nuclear ITS sequence data. ''Am. J. Bot.'' 87(5): 716-726. PMID 10811796 (PDF fulltext )〕 ''Eutrochium'' is the senior synonym of ''Eupatoriadelphus''.〔 (2004): New combinations in ''Eutrochium'', an earlier name for ''Eupatoriadelphus''. ''Sida'' 21: 901-902.〕〔 (2006): (393. ''Eutrochium'' Rafinesque ). In ''Flora of North America: North of Mexico'', Vol. 21 (Magnoliophyta: Asteridae, part 8: Asteraceae, part 3): 461-462, 474-475. ISBN 0-19-530565-5〕 ''Eupatorium'' in the revised sense (about 42 species of white-flowered plants from the temperate Northern hemisphere) is apparently a close relative of ''Eutrochium''. Another difference between ''Eutrochium'' and ''Eupatorium'' is that the former has mostly whorled leaves and the latter mostly opposite ones.〔(393. ''Eutrochium'' Rafinesque ), Flora of North America〕〔(392. Eupatorium Linnaeus ), Flora of North America〕 ''Eupatorium'' and ''Eutrochium'' are both placed in the subtribe Eupatoriinae, but South American plants which have sometimes been placed in that subtribe, such as ''Stomatanthes'', seem to belong elsewhere in the tribe Eupatorieae.〔 ;Species〔(The Plant List, search for ''Eutrochium'' )〕 * ''Eutrochium dubium'' (Willdenow ex Poiret) E. E. Lamont – Coastal Plain Joe-Pye Weed * ''Eutrochium fistulosum'' (Barratt) E. E. Lamont – Hollow Joe-Pye Weed * ''Eutrochium maculatum'' (Linnaeus) E. E. Lamont – Spotted Joe-Pye Weed 〔()〕 * ''Eutrochium purpureum'' (Linnaeus) E. E. Lamont – Sweet Joe-Pye Weed, Green-stemmed Joe-Pye Weed, Queen of the Meadow, Gravel Root, Kidney Root, Purple Boneset * ''Eutrochium steelei'' (E. E. Lamont) E. E. Lamont == Medicinal == Joe Pye (Jopi in the Native tongue), an Indian healer from New England, used ''E. purpureum'' to treat a variety of ailments, which led to the name ''Joe-Pye weed'' for these plants. Folklore says that Joe Pye used this plant to cure fevers. Folklore also states that American colonists used this plant to treat typhus outbreaks.〔 (1988). ''The Audubon Society Field Guide to North American Wildflowers, Eastern Region''. New York: Alfred A. Knopf, Inc.〕 The author Hemmerly writes that the Indians used Joe Pye Weed in the treatment of kidney stones and other urinary tract ailments.〔 (2000). ''Appalachian Wildflowers''. Athens, Georgia: University of Georgia Press.〕 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「Eutrochium」の詳細全文を読む スポンサード リンク
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