Amorphophallus konjac is a species of flowering plant in the family Araceae. It is native to China, Japan and Southeast Asia, where it is widely cultivated for its large, starchy corms. The plant produces a single, large, umbrella-like leaf and a tall, striking inflorescence that emits a foul odor to attract pollinators. The corms are used to make a traditional Asian food called konjac, which is high in dietary fiber and low in calories.