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xanthosoma
''Xanthosoma'' is a genus of flowering plants in the arum family, Araceae. The genus is native to tropical America but widely cultivated and naturalized in other tropical regions.〔(Kew World Checklist of Selected Plant Families )〕 Several are grown for their starchy corms, an important food staple of tropical regions, known variously as ''malanga'', ''otoy'', ''otoe'', cocoyam (or new cocoyam), ''tannia'', ''tannier'', ''yautía'', ''macabo'', ''ocumo'', ''macal'', ''taioba'', ''dasheen'', ''quequisque'', ''ape'' and (in Papua New Guinea) as Singapore taro (''taro kongkong''). Many other species (including especially ''X. roseum'') are used as ornamental plants, and in popular horticultural literature are known as ‘ape or elephant ear (from the purported resemblance of the leaf to an elephant's ear), although the latter name is sometimes also applied to members with similar appearance and uses in the closely related genera ''Caladium'', ''Colocasia'' (i.e., taro), and ''Alocasia''.
The leaves of most ''Xanthosoma'' species are 40-200 cm long, sagittate (arrowhead-shaped) or subdivided into three or as many as 18 segments. Unlike the leaves of ''Colocasia'', those of ''Xanthosoma'' are usually not peltate- the upper v-notch extends into the point of attachment of the leaf petiole to the blade.
== Etymology ==
The name is derived from the Greek words ξανθὸς (''xanthos''), meaning "yellow," and σῶμα (''soma''), meaning "body." It refers to the stigma or yellow inner tissues.
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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