Taxonomic studies of nodulated leguminous weeds from the flora of North Western part (Dera Ismail Khan) of Pakistan

Abstract

An extensive survey was carried out during 2005 - 2007 to investigate nodulated leguminous weed species which grow in agricultural and non-agricultural fields of North Western part (Dera Ismail Khan)
of Pakistan. Studies revealed that 18 such weed species belonging to 10 genera are commonly found in the research area. The genera with number of species are: Alhaji ( 1 sp.), Argyrolobium ( 1 sp.), Astragalus ( 2 spp.), Cajanus ( 1 sp.), Lathyrus ( 2 spp.), Lotus ( 1 sp.), Medicago ( 5 spp.), Melilotus ( 3 spp.), Sesbania ( 1 sp.) and Vicia ( 1 sp.). Results were systematically arranged by alphabetic order of botanical names, followed by synonyms (if any), description of the plant, flowering and fruiting period, type, local and general distribution. Nodulated leguminous plant specimens were collected, identified, preserved, mounted and deposited as voucher specimens in the Department of Plant Sciences, Quaid-i-University, Islamabad, for future references.