Xanthosoma sagittifolium - Beautiful perennial plant with large lush green leaves. Cocoyam produces edible corms, which must be consumed cooked. Can be prepared in many ways, boiled, fried, baked steamed or ground into flour. It is one of the most consumed food crops in the world, feeding over 400 million people. The leaves are also edible, use as you would spinach. Cocoyam also has medicinal uses. The leaves can grow very large and the plant can grow to 2.5 metres.