The Plant of the Mustard Family includes four plants: Alyssum (7 letters), Wasabi (6 letters), Cress (5 letters), and BROCCOLI (8 letters). Alyssum is a genus of flowering plants in the family Brassicaceae, commonly known as madwort or sweet alyssum. Wasabi is a plant of the Brassicaceae family, which is best known for its strong flavor and pungent smell. Cress is a fast-growing, edible plant of the mustard family. Lastly, BROCCOLI is an edible green plant in the cabbage family whose large flowering head is eaten as a vegetable.