The proper identification of the weed species, their medicinal properties and bioactive compounds is an important aspect in weed science to explore its full potential. The present book “Phytochemistry and Therapeutic potentials of Weeds” may fulfill the purpose of the knowledge hunters in natural resource arena, who take care about the quality, standard, and efficacy of herbal drugs. This book contains systematic position, major phytochemicals and medicinal properties of 102 weeds. Medicinal weeds have tremendous biosynthetic capabilities are considered as a potential source for precursors and lead compounds for the development of life-saving drugs. This information will help the scientific community (students, teachers, and researchers) to keep themselves updated with the research and development work being carried out for a particular medicinal weed; and persons interested in herbal medicine bioactive compounds may also find it useful.