known as mustard-persian - is a greens of the same family as the mustard, brassicaceae, originating in the mediterranean and western asia. adapts to cool weather, neither hot nor cold. it tastes very strong, spicy and bitter. is widely used in italy. in brazil, its use began in the southern states, but is currently popular throughout the country. prepared raw, in salads, or braised, serves to complement meals, due to its strong flavor and able to neutralize that of other foods. with appetite-stimulating properties, is nutritionally rich in proteins, vitamins a and c and minerals, especially calcium and iron. also contains omega-3, but is low in calories.