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''Vachellia farnesiana'', also known as ''Acacia farnesiana'', and previously ''Mimosa farnesiana'', commonly known as needle bush, is so named because of the numerous thorns distributed along its branches. The native range of ''V. farnesiana'' is uncertain. While the point of origin is Mexico and Central America, the species has a pantropical distribution incorporating northern Australia and southern Asia. It remains unclear whether the extra-American distribution is primarily natural or anthropogenic.〔Clarke, H.D., Seigler, D.S., Ebinger, J.E. 1989; 'Acacia farnesiana (Fabaceae: Mimosoideae) and Related Species from Mexico, the Southwestern U.S., and the Caribbean' Systematic Botany 14 549-564〕 It is deciduous over part of its range,〔(PDF ) Ursula K. Schuch and Margaret Norem, Growth of Legume Tree Species Growing in the Southwestern United States, University of Arizona.〕 but evergreen in most locales. The species grows to a height of up to and has a lifespan of about 25–50 years.〔(【引用サイトリンク】title=Acacia salicina Lindley )〕 The plant has been recently spread to many new locations as a result of human activity and it is considered a serious weed in Fiji, where locals call it Ellington's curse. It thrives in dry, saline, or sodic soils. It is also a serious pest plant in parts of Australia, including north-west New South Wales, where it now infests thousands of acres of grazing country.〔 〕 The taxon name ''farnesiana'' is specially named after Odoardo Farnese (1573–1626) of the notable Italian Farnese family which, after 1550, under the patronage of cardinal Alessandro Farnese, maintained some of the first private European botanical gardens in Rome, in the 16th and 17th centuries. Under stewardship of these Farnese Gardens this acacia was imported to Italy. The plant itself was brought to the Farnese Gardens from the Caribbean and Central America, where it originates. Analysis of essences of the floral extract from this plant, long used in perfumery, resulted in the name for the sesquiterpene biosynthetic chemical farnesol, found as a basic sterol precursor in plants, and cholesterol precursor in animals.〔 == Some of the reported uses of the plant == 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「Vachellia farnesiana」の詳細全文を読む スポンサード リンク
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