... the plant in his treatises on agriculture, and a mural in showing the plant has survived until today ... as in Japan.may seize anyone who buys a genuine wasabi root. A single root may cost US$8-$10, ... may have fresh, genuine wasabi roots for sale, and a shopper will know he has the genuine article by the ... , as a meat sauce, or in salad dressings. For those who simply cannot afford the genuine root, most ...