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''Trixis'' is a genus of shrubs in the aster family, Asteraceae, native to North and South America including the West Indies.〔(Browne, Patrick. 1756. Civil and Natural History of Jamaica in Three Parts page 312 )〕〔(Browne, Patrick. 1756. Civil and Natural History of Jamaica in Three Parts plate 33, figure 1 on left ) engraved black + white illustration〕 Members of the genus are commonly known as threefolds due to the outer lip of the corolla. The generic name is derived from τριχος (''trixos''), the Greek word for threefold.〔(Flora of North America Vol. 19, 20 and 21 Page 75, Threefold, ''Trixis'' P. Browne, Civ. Nat. Hist. Jamaica. 312, plate 33, fig. 1. 1756. )〕 ;Species〔〔(Biota of North America Program 2013 county distribution maps )〕 # ''Trixis aggregata'' Rusby - Bolivia # ''Trixis alata'' D.Don - Guerrero, México State, Guanajuato # ''Trixis angustifolia'' DC. - San Luis Potosi # ''Trixis anomala'' B.L.Turner - Chiapas # ''Trixis antimenorrhoea'' (Schrank) Mart. ex Baker - South America # ''Trixis bowmanii'' Baker - Brazil # ''Trixis cacalioides'' (Kunth) D.Don - Peru # ''Trixis calcicola'' B.L.Rob. - Guerrero # ''Trixis californica'' Kellogg – American Threefold - USA (CA AZ NM TX), Mexico (Baja California, Baja California Sur, Sonora, Chihuahua, Coahuila, Durango, Zacatecas, Nuevo León) # ''Trixis chiapensis'' C.E.Anderson - Guatemala, Chiapas # ''Trixis erosa'' Sw. - Costa Rica, West Indies # ''Trixis glaziovii'' Baker - Paraná, Rio de Janeiro # ''Trixis grandibracteata'' C.E.Anderson - Guerrero # ''Trixis grisebachii'' Kuntze - Bolivia, northern Argentina # ''Trixis haenkei'' Sch.Bip. - Durango, Sinaloa # ''Trixis hassleri'' Chodat - Paraguay # ''Trixis hyposericea'' S.Wats. - Jalisco, Michoacán, Nayarit # ''Trixis inula'' Crantz – Tropical Threefold〔 - USA (TX), Mexico, Central America, West Indies, Colombia, Venezuela # ''Trixis lessingii'' DC. - Paraguay, Uruguay, Brazil # ''Trixis longifolia'' D.Don - México State, Sinaloa # ''Trixis megalophylla'' Greenm. - México State, Oaxaca, Puebla # ''Trixis mexicana'' Lex. - Michoacán # ''Trixis michuacana'' Lex. - Michoacán, Jalisco, Nayarit # ''Trixis nelsonii'' Greenm. - Guatemala, Chiapas, Oaxaca # ''Trixis nobilis'' (Vell.) Katinas - Paraguay, Uruguay, Brazil, Argentina # ''Trixis ophiorhiza'' Gardner - Bolivia, Brazil # ''Trixis pallida'' Less. - Paraguay, Uruguay, Brazil, Argentina # ''Trixis parviflora'' C.E.Anderson - Oaxaca # ''Trixis peruviana'' Katinas - Peru # ''Trixis praestans'' (Vell.) Cabrera - Paraguay, Uruguay, Brazil, Argentina # ''Trixis pringlei'' B.L.Rob. & Greenm. - Guerrero, Oaxaca # ''Trixis proustioides'' Hieron. - Colombia # ''Trixis pterocaulis'' B.L.Rob. & Greenm. - Colima, Jalisco, Nayarit, Sinaloa, Sonora # ''Trixis silvatica'' B.L.Rob. & Greenm. - Oaxaca # ''Trixis spicata'' Gardner - Paraguay, Uruguay, Brazil # ''Trixis thyrsoidea'' Dusén ex Malme - southern Brazil # ''Trixis vauthieri'' DC. - eastern Brazil # ''Trixis verbascifolia'' (Gardner) S.F.Blake - Minas Gerais, Rio de Janeiro # ''Trixis villosa'' (Spreng.) Sch.Bip. - Brazil ;Formerly included Numerous species once included in ''Trixis'' but now considered better suited to other genera: ''Acourtia Clibadium Dolichlasium Holocheilus Perezia Riencourtia'' ==References== * 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「Trixis」の詳細全文を読む スポンサード リンク
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