ASGHAR ALISupervised By: Dr. Lal Badshah2026-07-312026-07-312017http://repository.uop.edu.pk/123456789/540Thepresent study was carried out during 2012-2015 to enumerate the floristic and ecological characteristics of plants of Chail Valley, District Swat. A total of 463 species were recorded belonging to 104 families. Leading families were Asteraceae (42 Spp.), Poaceae (35 Spp.), Rosaceae and Lamiaceae (each with 26 Spp.), Papilionaceae (25 Spp.), Brassicaceae and Boraginaceae (each with 16 Spp.), Apiaceae (14 Spp.). Solanaceae (13 Spp.) and Ranunculaceae (12 Spp.). Each of the remaining families had less than 12 species. Therophytes were dominantlife form with 188 species (40.60%) followed by hemicryptophytes (77 species, 16.63%) while Cuscuta europaea, C. reflexa and Viscum album (Mistletoe) were the three shoot parasites. The leaf spectra was dominated by mesophylls (147 Spp; 31.75%) followed by microphylls (140 Spp.; 30.24%) and nanophylls (136 Spp.; 29.37%). Two species were aphyllous. Majority of the species (305 Spp., 65.87%) had simple lamina while eight species (1.73%) had spiny leaves.enThesis