Horseradish (scientific name: Armoracia rusticana), also known as western horseradish, mare's radish, mountain radish, white horseradish, or European horseradish, is a perennial, cold-hardy plant in the mustard family (Brassicaceae) native to Southeastern Europe. It can be used as a vegetable and has a pungent flavor that stimulates the sinuses. In addition to being used as a condiment for dishes like roast beef in European countries, horseradish is white when peeled, and when mixed with food coloring, it can be used as a substitute for wasabi.