Alfalfa (Medicago sativa) is a perennial herb that is indigenous to the Middle East.&ampnbsp; Because of its deep root system, Alfalfa is better able to absorb minerals from the soil than other plants.&ampnbsp; Therefore, Alfalfa is a rich source of vitamins and minerals, as well as Chlorophyll.&ampnbsp; NOW&ampreg; Alfalfa Leaf Caps are free of pesticide and herbicide residues.