Amorphophallus konjac (Konjac)

Konjac is a common name of the East and Southeast Asian plant Amorphophallus konjac, which has an edible corm. It is also known as konjaku (こんにゃく), konnyaku potato, devil's tongue, voodoo lily, snake palm, or elephant yam. The corms are dormant in Autumn and Winter.