Synopsis The earlier studies on the vegetation of Tehri, broadly encompassing the entire district as a whole, made by Dr. U.C. Bhattacharyya and Dr. A.K. Goel in 1982, included twelve rare and threatened species from the area. This prompted the ministry of environment & forests to have a fresh look, especially on the rare and endangered plants, and the responsibility was once again assigned to the northern circle, Botanical Survey of India, Dehra Dun. The present work by the scientists of the circle is an outcome of the explorations taken during 1992-93 exclusively in the submersible area of the proposed reservoir and study of earlier collections and literature. The report discusses thredbare the status of rare and endangered plant species and sets at rest all speculation about the impact of the proposed dam on these taxa. The report, along with a list of useful plants, may be helpful to the Tehri Hydro Development Authorities in planning and carrying out afforestation programmes.