A Textbook of Pharmacognosy for First Year Diploma in Pharmacy" is a comprehensive guide designed to provide students with a solid foundation in the field of pharmacognosy. This book covers a wide range of topics, from the basic concepts and classification of drugs to the phytochemical investigation of medicinal plants and their therapeutic applications. Salient Features: Detailed explanations of the history, present status, and scope of pharmacognosy, providing students with a thorough understanding of the subject. Comprehensive coverage of various drug classification systems, including alphabetical, taxonomical, morphological, pharmacological, chemical, and chemo-taxonomical methods. In-depth discussion on the quality control of crude drugs, including different methods of adulteration and the evaluation of crude drugs. Extensive information on the occurrence, distribution, isolation, identification tests, therapeutic activity, and pharmaceutical applications of essential phytoconstituents such as alkaloids, terpenoids, glycosides, volatile oils, tannins, and resins. Detailed exploration of the biological source, chemical constituents, and therapeutic efficacy of various categories of crude drugs, including laxatives, cardiotonics, carminatives, astringents, and drugs acting on the nervous system. Comprehensive coverage of plant fibers used as surgical dressings and sutures, as well as an introduction to traditional systems of medicine like Ayurveda, Siddha, Unani, and Homeopathy. Insights into the role of medicinal and aromatic plants in the national economy and their export potential. Introduction to herbal formulations, herbal cosmetics, and the phytochemical investigation of drugs. Inclusion of relevant appendices for quick reference and enhanced understanding. This textbook serves as an indispensable resource for first-year diploma in pharmacy students, providing them with the necessary knowledge and skills to excel in the field of pharmacognosy.