Colocasia esculenta var. antiquorum 'Illustris' Known as the Imperial Taro of Japan.
Illustris is a large ornamental and edible variety. This plant can be grown in standing water or in moist soil., Will tolerate full sun or shade. These are beautiful plants, almost identical to elephant ears in appearance but not in nature. Illustris make perfect additions to any pond or water feature and will grow in at least 12 inches of standing water. this is an outstanding, easy-to-grow, and versatile plant. The following information contains the nutritional value, use and history of this amazing plant.
In Japan, it is called satoimo, (kanji: 里芋) "village potato". The "child" and "grandchild" corms which bud from the parent satoimo, are called imonoko (芋の子 imonoko). Satoimo has been propagated in Southeast Asia since the late Jōmon period. It was a regional staple food before rice became predominant. The tuber, satoimo, is often prepared through simmering in fish stock (dashi) and soy sauce. The stalk, zuiki, can also be prepared a number of ways, depending on its variety.]
The leaves are high in minerals and vitamins A, B, and C. These large leaves are cooked like mustard or turnip greens and the resulting product is called callaloo in the Caribbean.
The young leaves are cooked and used for human consumption as a very nutritious vegetable and the corms are used as staple in place of rice or potato (Plucknett and White 1979). These young leaves are boiled or covered with coconut cream, wrapped in banana or breadfruit leaves and cooked on hot stones.