Fan Xie Ye commonly known as Folium Sennae or Senna Leaf is the leaf of Cassia angustifolia or Cassia acutifolia, which is a dwarf shrub belonging to the family Leguminosae. It is a medication used to treat constipation and empty the large intestine before surgery, which first appeared in Folium Sennae, Senna Leaf Online Direct From China, It is an excellent source of Traditional Chinese medicine.Folium Sennae, Senna Leaf, Pao Zhu Ye, Zhan Na Ye Direct From No.1 China Herb Market, Free Shipping.