Phytosociological studies of the Ayub National Park Rawalpindi, were carried out during summer of 1977. Vegetation was sampled at 25 different locations for delimiting densities, dominance and frequencies. Five plant communities i.e., Depression community (indicated by Acacia modesta Cannabis sativa), Level ground community (Acacia modesta-Cynodon dactylon), Foot hill community (Acacia modesta-Themeda anathera), Hill slopes community (Acacia modesta-Dodonaea viscosa) and Hill tops community (Acacia modesta-Lantana camara) were recognized on the basis of physiognomy, floristic composition and Importance value of tree species and Summation value of herbs and shrubs. The ubiquitous presence of regeneration of Acacia modesta in all the habitats least effect of topography and the highest summation values of the regeneration of Acacia modesta, lantana camara, Ehretia obtusifolia, Dodonaea viscosa and Zizyphus nummularia indicates future trend of the vegetation with the probable chances of Olea cuspidate and Sageretia brandrethiana.