The unstable sites were dominated by different sets of early colonizers largely depending upon the availability of moisture and the coarser fraction of soil. In moderately wet new alluvial lands, Saccharum spontaneum was the leading dominant; on relatively drier sites, Astragalus graveolens took the lead over; and in more wet habitats, Salvia-Polypogon community dominated the scene. The stable land was dominated by Cynodon-Imperata community representing a relatively a advanced stage of succession.