Japanese horse raddish
Wasabi is a root plant with a pleasant aroma and a sharp, fiery flavour. In the early 17th century, it became a popular accompaniment to sushi, promoting the spread of its cultivation. Wasabi is available fresh, and can be grated like horseradish, as apaste or in powder form. It is also mixed with soy sauce and used as a condiment with sashimi and sushi. When used for seasoning, wasabi stimulates the appetite and is also known to prevent food poisoning.