This is the final/fifth volume of dravyagunvijnana series written by the author.  This volume covers Vedic herbs, controversial herbs and ignored medicinal plants. The subject matter in each chapter is arranged in English alphabetical order for herbs. About 700 Vedic herbs, 60 controversial herbs and 200 ignored herbs are dealt in this volume. A glossary of Sanskrit terms and their meanings is provided at the end of the text. Index on Sanskrit terms and Botanical terms is provided separately to give facilitate the requirements of the readers. The book will help the policy makers and teachers to understand the current requirements of dravyaguna. This volume will enable the PG and Ph.D. scholars for selecting herbs for their dissertation/thesis topics. This work will change the conventional thinking on the number of herbs used in the ancient ayurvedic texts. The illustrations and botanical descriptions presented in this volume provides identification of the herbs.