Folium Pyrrosiae. Part used: Leaf. Known as Felt Fern Leaf. Clears damp-heat, unblocks painful urinary dysfunction and clears stones. Clears heat and stops bleeding. Clears the lungs, expels phlegm and stops coughing. Entering Meridians: Bladder and Lung. All Phoenix Medical dry authentic herbs and concentrated herbal granules are free of sulphur, herbicides and pesticides.