IUCN threat status:  Not evaluated   Read full entry   Konjac
(English pronunciation: /ˈknjæk/ 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,[1] 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. 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.  The food made from the
root of this plant is widely known in English by its Japanese
name, konnyaku (yam cake), being cooked and consumed primarily
in Japan. The two basic types of cake are white and black.
Pushing the cake through a grid of s