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''Colocasia gigantea'' (also called giant elephant ear or Indian taro) is a 1.5–3 m tall herb with a large, fibrous, inedible corm, producing at its apex a whorl of large leaves.〔Anton Ivancic et al. (Thermogenesis and flowering biology of Colocasia gigantea, Araceae ) J Plant Res (2008) 121:73–82.〕 The leaf stalk is used as a vegetable in some areas in South East Asia and Japan. Known as ''bạc hà'' in southern Vietnam and by Vietnamese speakers in the U.S (while it is called〔Nguyen Thi Ngoc Hue 'Taro diversity and use in Vietnam'. (Ethnobotany and genetic diversity of Asian taro: focus on China )〕〔(Loài Dọc mùng ) Tri thức việt - Vietgle.〕〔MATSUDA M and NAWATA E "Taro in Northern Vietnam : Its Uses, Cultivation, and Genetic Variation" Japanese Journal of Tropical Agriculture, VOL.46;NO.4;PAGE.247-258(2002)〕 and ''bạc hà'' refers to a culinary mint herb in northern Vietnam〔(Cultivated Plant Collections from Market Places ) My Lien Thi Nguyen〕), it is often used in canh chua and bún (rice vermicelli soup). In Japanese, it is called ''hasu-imo''〔Nguyen Thi Ngoc Hue ('Taro diversity and use in Vietnam' Ethnobotany and genetic diversity of Asian taro: focus on China )〕 (literally, "lotus yam") in general and ''ryukyu'' in Kochi Prefecture as it is originated in Ryukyu Kingdom. It is sometimes used as an ingredient of miso soup, chanpuru and sushi. A Japanese term ''zuiki'' means the leaf stalk of both ''C. gigantea'' and ''C. esculenta''. Higo-zuiki, made of a dried stalk and produced solely in Kumamoto Prefecture (or Higo Province), is a sex toy with a history of several hundred years, containing saponin which is considered to affect sexual pleasure. ''C. gigantea'' is close to ''Alocasia macrorrhizos'' and is thought to be produced from natural crossing between ''A. macrorrhizos'' and ''C. esculenta''.〔(The Global Diversity of Taro ) Ethnobotany and Conservation Bioversity International〕 ==Notes== 〔 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「Colocasia gigantea」の詳細全文を読む スポンサード リンク
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