Mustards,(Brassicaspp.) are herbaceous annual plants in the family Brassicaceae grown for their seeds which are used as a spice. Mustard plants are thin herbaceous herbs with yellow flowers. … The seeds are red to brown in color and produced from each flower. The seed itself has a strong, pungent, and somewhat bitter taste. The taste of mustard condiments ranges from sweet to spicy. Mustard is commonly paired with meats, vegetables and cheeses, especially as a condiment for sandwiches, hamburgers, corn dogs, and hot dogs. Mustard is used as a food flavoring, for forage, as an emetic, and diuretic, as well as a topical treatment for inflammatory conditions such as arthritis and rheumatism.