蒟蒻（学名：Amorphophallus konjac），天南星科魔芋属，多年生宿根性块茎草本植物。原产日本、印度、斯里兰卡、马来半岛，在中国西南地区栽种亦有多年历史，自古便是中国古书中的药草之一。除上述产地外，亦分布于越南、喜马拉雅山地至泰国以及中国大陆的甘肃、宁夏至江南各省、陕西等地，近年来尤在四川、云南、贵州一带大量生产。**的埔里、鱼池、台东等地亦有生产，生长于海拔310米至2,200米的地区，多生长于林缘、疏林下以及溪谷两旁湿润地。

Konjac (English pronunciation: /ˈkoʊnjæk/ KOHN-yak; Amorphophallus konjac; syn. A. rivieri; Japanese: 蒟蒻/菎蒻; こんにゃく; konnyaku; Korean:곤약; gonyak; Chinese:蒟蒻; pinyin:jǔruò), also known as konjak, konjaku, konnyaku potato, devil's tongue, voodoo lily, snake palm, or elephant yam (though this name is also used for A. paeoniifolius), is a plant of the genus Amorphophallus. It is native to warm subtropical to tropical eastern Asia, from Japan and China south to Indonesia (USDA hardiness Zone 6-11). It is a perennial plant, growing from a large corm up to 25 cm in diameter. The single leaf is up to 1.3 m across, bipinnate, and divided into numerous leaflets. The flowers are produced on a spathe enclosed by a dark purple spadix up to 55 cm long.