The present publication attempts to document the indigenous medicinal plants used by peoples of Darjeeling and Sikkim Himalaya for treatment of various diseases. The book pertains to an effort to cohere indigenous knowledge to researcher and the entire related stakeholder who are involved in overall sustainable development. Attention has been given on proper identification of plant species for further research work. This book discusses the botanical description, habitat and plant parts use as herbal medicine by local inhabitants of Darjeeling and Sikkim Himalaya since time immemorial for their day to day problems. It also includes remarks on any hazardous experience by using these herbal medicines.

World Health Organisation (WHO) has defined medicinal plants as plants that contain compounds or having properties that can be used for therapeutic purposes or those that synthesize metabolites to produce useful drugs. Medicinal plants are available in almost all countries of the world but India is considered as the largest producer of medicinal plants and, therefore, is called ‗Botanical garden of the world‘.