A preliminaryfloristic checklist of Thal desert Punjab,Pakistan

The floristic survey of the thal desert,punjab,pakistan was carried out during 2010 to 2013. so far,248 species distributed across 166 genera and 38 families were identified during the report period. besides,one species viz.,themeda triandra was recorded for the first time from pakistan. of them,one fern,4 monocots and 33 dicots families were determined. the most dominating family was poaceae that contributed 52 species (21.49%),followed by fabaceae (34 spp.,13.05%) and amaranthaceae & asteraceae (17 spp.,7.02% each). the largest genera were euphorbia (6 spp.),cyperus,eragrostis and solanum (5 spp. each),mollugo,heliotropium and cenchrus (4 spp. each),acacia,prosopis,tephrosia,corchorus,boerhavia and ziziphus (3 spp. each). this checklist consists of updated systematic families and plants names that will provide a useful starting point for further ecological and bioprospective research of the area under study.