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Brickellia veronicifolia
''Brickellia veronicifolia'' is a North American species of plants in the sunflower family. It is widespread across much of Mexico, from Chihuahua to Oaxaca.〔Turner, B. L. 1997. The Comps of Mexico: A systematic account of the family Asteraceae, vol. 1 – Eupatorieae. Phytologia Memoirs 11: i–iv, 1–272. 〕 In the United States, it very rare, found only in the Chisos Mountains inside Big Bend National Park in Texas, and also in Otero County in New Mexico.〔(Biota of North America Program 2014 county distribution map )〕
''Brickellia veronicifolia'' is a shrub up to 90 cm (3 feet) tall. It produces large numbers of small, pale yellow or cream-colored flower heads.〔(Flora of North America, ''Brickellia veronicifolia'' )〕
''Brickellia veronicifolia'' contains high amounts of essential oils, Germacrene D, a natural insecticide〔Rivero-Cruz B, Rivero-Cruz I, Rodriguez JM, Cerda-Garcia-Rojas CM, Mata R. ''Qualitative and quantitative analysis of the active components of the essential oil from ''Brickellia veronicaefolia'' by nuclear magnetic resonance spectroscopy''. J Nat Prod. 2006 Aug;69(8):1172-6.〕 and the two flavonoids brickellin〔(Brickellin, a novel flavone from ''Brickellia veronicaefolia'' and ''B. chlorolepis''. Roberts M. F., Timmermann B. N., Mabry T. J., Brown R., Matlin S. A., Phytochemistry, 1984, vol. 23, no1, pp. 163-165 )〕 and eupatolitin.〔(6-Methoxyflavonols from ''Brickellia veronicaefolia'' (compositae). Margaret F. Roberts, Barbara N. Timmermann and Tom J. Mabry, Phytochemistry, Volume 19, Issue 1, 1980, Pages 127-129 )〕
==References==
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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