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''Ayapana triplinervis'' (aya-pana, water hemp) is a tropical American shrub in the Asteraceae family. This plant has long slender leaves which are often used to make a stimulating medicine.〔 It contains Herniarin, a methoxy analog of umbelliferone, while its essential oil contains thymohydroquinone dimethyl ether. The flowers are pale pink and the thin, hairless stem is reddish in color.〔 Names include aypana, aiapana, aiapaina, aipana, cagueña, curia, daun panahan, daun perasman, diapalma iapana, diarana-guaco, japana, japana-branca, sekrepatoe wiwir, pool root, white snakeroot, yapana,〔(Ayapana on www.rain-tree.com )〕 Diapana, Zèbe cont'la fièv ', Zèbe vulnéraire, Zèbe à thé, Zèbe cout'la〔(Avapana on www.ladograve.com ) (French)〕 Tall water hemp is an annual weed, ''Amaranthus tuberculatus''. == Description == An ascending, slender perennial. Leaves purple, subsessile, lanceolate, 3-nerved, acuminate, subentire, glabrous. Inflorescence a lax, few-headed corymb, heads pedicellate, about 20-flowered; flowers slaty blue. Constituents * A rich source of naturally occurring coumarin chemicals. * Leaves contain a volatile oil, ayapana oil, 1.14%. * Plant yields cineol, alpha-phellandrene, alpha-terneol, ayapanin, ayapin, borneol, coumarin, sabinene, umbelliferone among many others. * Hemarin, one of the coumarins is used as an anti-tumor remedy in herbal medicine. * Phytochemical analysis of a methanolic extract yielded hexadecanoic acid (14.65%), 2,6,10-trimethyl,14-ethylene-14-pentadecne (9.84%), Bicyclo() heptane, 7-butyl- (2.38%), Decanoic acid, 8-methyl-, methyl ester (3.86%), 1-undecanol (7.82%), 1-hexyl-1-nitrocyclohexane (2.09%), 1,14-tetradecanediol (6.78%), Octadecanoic acid, 2-hydroxy- 1,3-propanediyl ester. 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「Ayapana triplinervis」の詳細全文を読む スポンサード リンク
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