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live longer than human does as an indispensable entity does. Trees play unmatchable roles such as oxygen supplier, sink of atmospheric carbon dioxide emission, controller of soil erosion, absorber
of pollutions, and protector of UV rays and resource of rainfall. Each part of a tree including leaves, branches, trunks, flowers and fruits benefits human. Trees are part of human life. They been used
timber, fodder, firewood, food, oil and medicines, including industrial products such as gums, resins, rubber etc. in addition to these industrial uses, they been used as aesthetically important and also
worshipped as sacred in every religions. Trees in India is known for their majestic and grandeur. They occupy the important place in the history of India. Trees have always been associated with scared,
wisdom and immorality. In this era of climate change and global warming, trees play a vital role in mitigating all the ill effects by serving as buffer. An estimated 50,000 plant species are used medicinally, with huge global trade. Within the plant kingdom, trees make a substantial contribution to this figure and many species are used in traditional medicine. India has the deep history of using traditional medicine practice from ages. In Indian traditional medicine, trees plays a vital role. Medicine extracted from the tree’s roots, leaves, wood, bark, flowers, fruits or seeds is fundamental to the people well-being. Trees have made an enormous phytochemical contribution in drugs’ development more than any other life form. The contributions include alkaloids that are biosynthesized in various ways and yield. Lead alkaloids isolated from the trees are of having various medicinal properties like anti-inflammatory, anticancer, analgesics, local anesthetic and pain relief, neuropharmacologic, antimicrobial, antifungal, and many other activities. Where access to modern pharmaceuticals is expensive and limited, trees offer living pharmacies open to all with traditional knowledge on their medicinal properties. Medicine from trees is also traded internationally, with many prescription drugs based on molecules taken from trees. Certain trees are cultivated to meet demand for its medicinal properties whereas medicine from other species is harvested directly from wild populations. Sustainable extraction of medicine from wild trees can provide an economic value to conserve forests and the medicinal trees within them. However, without careful management, over-exploitation, driven by strong market demand, poses a significant threat to many trees. This book aims at providing basic information about useful medicinal trees, their distribution and economic importance in different geographical regions. Majority of the trees possess vital alkaloids having huge medicinal properties, which is not popularly known to many people. However, use of vernacular language and their diagrammatic botanical description in this book would be of great help in identifying the trees species along with their associated medicinal value.