BIODIVERSITY OF SEDGES IN DERA ISMAIL KHAN DISTRICT, NWFP PAKISTAN

The present account of Cyperaceae is based on the results of the Taxonomical research work conducted in Dera Ismail Khan (D.I.Khan) district, North West Frontier Province (NWFP), Pakistan, during May 2005 - April 2006. 20 plant species of the family, belonging to 9 genera, were collected, preserved and identified. Plant specimens were mounted and deposited as voucher specimens in the Department of Botany, Quaid-I-University, Islamabad. Complete macro microscopic detailed morphological features of these species were investigated. Key to the species of the area was developed for easy and correct identification differentiation. The genera with number of species are: Bolboschoenus ( 1sp.), Cyperus ( 6 sp.), Eleocharis ( 2 sp.), Eriophorum (I sp.), Fimbristylis ( 5 sp.), Juncellus (1sp.), Pycreus ( I sp.), Schoenoplectus ( 2 sp.) and Scirpus (1sp)