Ailanthus excelsa, commonly known as tree of heaven, is a large deciduous tree found in India and Sri Lanka. In Tamil, it is also known as Pi-Nari Maram due to its disagreeable odor. The trees are grown along the edges of fields and rivers to mark boundaries and prevent soil erosion.The tree has several uses in medicine as the gum and the bitter, aromatic leaves are reported to have medicinal properties. The bark is a febrifuge and can be used as a treatment against asthma, bronchitis and dysentery. ...