Biodiversity is the variety and variability of plants and animal species on our planet. In the biodiversity rich state like Himachal Pradesh many development activities have been started which resulted, the loss of biodiversity. Therefore, present effort is made to know the impact of cement factory, ACC Ltd., Barmana, District Bilaspur, Himachal Pradesh, Inida. Total 217 species of vascular plants belonging to 68 families and 160 genera were recorded from the area indicating richness of the area in term of flora. Since, there is no base line information on the flora of the region affected by...