Alfalfa, or Medicago sativa, is a purple flowering perennial and member of the legume family known for its nutritious qualities. Also referred to as lucerne, it has an extensive tradition of uses, including making nutritive tonics, enjoying as an herbal tea, and eating the sprouts in meals like salads and sandwiches. Alfalfa is rich in vitamins A, E, D and K. In traditional Chinese medicine, Alfalfa was used for digestive system support and to stimulate the appetite.