Himachal Pradesh experience diverse climatic condition due to wide variation in altitude ranging from 350 m in the southern tract to over 6500 m in the main Himalaya and in the area lying in it6. National highway from Parwanoo to Kaurik is very rich in biodiversity as well as forest cover along side. Along the side of this highway have number of dye yielding woody plants which produce different colours. Locally peoples use these plants for different purposes. Total 51 species belonging to 39 genera and 30 families have been recorded and identified with scientific name, family name, common name, part used and colour. Rosaceae is found to be dominant with 9 species followed by Leguminosae with 6 species, Berberidaceae having 4 spp., Euphorbiaceae having 3 spp., Anacardiaceae and Vitaceae with 2 species each and rest of family having one species each.