Radix Ophiopogonis. Part used: Root. Known as Lily-Turf Root. Entering meridians: Heart, Lung and Stomach. Mai Men Dong moistens the lungs, nourishes Yin, stops coughing, nourishes stomach Yin. generates fluids, moistens the intestines, clears the heart and eliminates irritability. All Phoenix Medical dry authentic herbs and concentrated herbal granules are free of sulphur, herbicides and pesticides.