Open cast coal mining resulting into the derangement of soil pattern and destruction of overlying vegetations. In this context present work was under taken. Objectives of this work were botanization of deranged overburdens, assessment of physicochemical properties and seed bank potentiality of the spoils, and ear-marking the species suitable for ecorestoration. The present work revealed the floristic assemblage and the physico- chemical characters of the over-burdens (OB) resulting from dumping of residues (spoil) from the opencast mining of coal at Raniganj Colliery of Burdwan district, West Bengal. Values of pH of the spoils collected from six sites ranged from 6.6 to 8.63. The organic carbon content of the spoils ranged from >0.5% to 0.5%. Negligible amount of nitratenitrogen could be found in the spoil of Sahebkothi where as it was found to be very high in Nathman colliery. The phosphate content of spoils of Sahabkothi was negligible and those of Nidha and Bhuimpara were low. Nathman colliery (Site IIA) was exceptional in having high content of phosphate in their spoil samples. From the study sites as many as 37 species of angiosperms belonging to 15 families were detected. Interestingly all the individual plants were highly reduced in size under extreme xeric conditions. So far the dominant families are concerned Poaceae with six species and followed by Acanthaceae with four species. The most prevalent species is Croton bonplandianum which is present in 4 out of 5 sites studied (80%) which is followed by Tephrosia purpurea with prevalence value of 60%.
