Arugula belongs to the Brassica family of microgreens that includes cabbage, kale, broccoli, and radish. It has a pungent, earthy flavor and adds visual appeal to any salad. Along with the taste and visual benefits, Arugula packs a nutritional punch that can ward off many diseases and increase bone health. It's a favorite and generally considered a staple of the spicier side of microgreens and baby salad greens.