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''Blumea'' is a genus of flowering plants belonging to the Asteraceae family. ==Characteristics== Genus ''Blumea'' is found in the tropical and sub-tropical zones of Asia, especially the Indian Subcontinent and Southeast Asia. A few species are found in Australia and still fewer in Africa.〔〔(Flora of China Vol. 20-21 Page 829 艾纳香属 ai na xiang shu Blumea Candolle, Arch. Bot. (Paris). 2: 514. 1833. )〕 The plants of this genus are mostly relatively small weeds.〔Oudhia, P., S. S. Kolhe, and R. S. Tripathi. "Allelopathic effect of Blumea lacera L. on rice and common kharif weeds." Oryza 35.2 (1998): 175-177.〕 Some of them are ruderal species. A few of the species were formerly included in genus ''Conyza''. Many species of genus ''Blumea'' are used in traditional Chinese medicine. Other uses include as decorative dry plants. ''Blumea balsamifera'' (Nat; หนาด) is reputed to ward off spirits in Thai folklore, and is used in Philippines herbal medicine as well. ''Blumea mollis''〔(Blumea mollis )〕 leaf essential oil contains linalool (circa 19%), γ-elemene (c.12%), copaene (c.11%), estragole (c.11%), ''allo''-ocimene (c.10 %), γ-terpinene (8%) and ''allo''-aromadendrene (c.7 %). The essential oil had significant toxic effect against early fourth-instar larvae of ''Culex quinquefasciatus'' with LC50 = 71.71 and LC90 = 143.41 ppm.〔Senthilkumar A, Kannathasan K, Venkatesalu V.,"Chemical constituents and larvicidal property of the essential oil of Blumea mollis (D. Don) Merr. against Culex quinquefasciatus." ''Parasitol Res''. 2008 Sep;103(4):959-62〕 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「Blumea」の詳細全文を読む スポンサード リンク
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