What is Amorphophallus konjac Koch. in english?

Amorphophallus konjac (Konjac yam) is a plant native to East Asia where it is known for its edible corms (swollen underground stem). While it is often referred to as a yam, it is unrelated to those tubers. Konjac / konnyaku is served as cakes in Japan where it has been popular for centuries. Noodles made using konnyaku are known as Shirataki noodles.

In English, Amorphophallus konjac Koch. is known by Elephant-foot yam, Konjac, Snake palm, or Voodoo lily.