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''Haplophyton'' (cockroach plant) is a plant genus in the family Apocynaceae, first described as a genus in 1844. It is native to the southwestern United States, Mexico, Cuba, and Guatemala.〔(Kew World Checklist of Selected Plant Families )〕〔(Biota of North America Program 2013 county distribution map, ''Haplophyton crooksii'' )〕 It is a suffrutescent herb with alternative leaves and showy colorful flowers.〔Williams, J. K. 1995. Miscellaneous notes on ''Haplophyton'' (Apocynaceae: Plumerieae: Haplophytinae). Sida 16(3): 469–475〕 The common name "cockroach plant" (or "hierba de la cucaracha") in reference to its insecticidal properties. It has been used to kill roaches, fleas, flies, lice and mosquitoes.〔McLaughlin, S.P. 1993. Apocynaceae A.L. Juss., Dogbane Family. Journal of the Arizona-Nevada Academy of Science 27:164-168.〕 Leaf extracts and sap contain many insecticidal compounds — such as the indole alkaloid aspidophytine. ;Species Some authors accept 3 species in the genus, others recognize 2, considering ''H. cinereum'' synonymous with ''H. cimicidum''. The World Checklist recognizes: # ''Haplophyton cimicidum'' A.DC. (syn ''H. cinereum'' (A.Rich.) Woodson) - Michoacán, Puebla, Morelos, Oaxaca, Chiapas, Guatemala; naturalized in Cuba # ''Haplophyton crooksii'' (L.D.Benson) L.D.Benson - S Arizona, SW New Mexico, W Texas, Sonora, Chihuahua, Coahuila, Cuba == 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「Haplophyton」の詳細全文を読む スポンサード リンク
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