Biological Characteristics of plant species in Tehsil Takht-e-Nasrati, Pakistan

A record of plant species of tehsil Takht-e-Nasrati was organized on the source of field trips conducted in diverse parts during 2009 - 2010, for all intents and purposes in spring, summer and winter. The flora consisted of 161 plant species belonging to 57 families. The biological spectrum explains that therophytes (77 spp., 47.83%), phanerophytes (40 spp., 24.85%), hemicryptophytes (30 spp., 18.63%), chamaephytes (11 spp., 6.83%), cryptophyte (03 spp., 1.86%) had rate in the investigated area. Leaf spectra of plants consisted of microphylls (52.8%), nanophylls (19.88%), megaphylls (18.01%) and leptophylls (9.32%). The study brings a conclusion that the preeminence of therophytes in the investigated area was beneath deep biotic stress and dry condition.