The konjac plant (Amorphophallus konjac) grows on slopes 2000 to 4000 ft above sea level, where it enjoys the habitat’s clean air and water. Today, konjac plants are grown in Japan, Korea, and China. The edible part of the konjac plant is the root which resembles an oval shaped taro or yam potato. Some people call konjac noodles “yam noodles”. This is misleading as there is no yam at all; if it did contain yam, our pasta would contain a lot more starch and calories.