Weed flora of selected farms in Al-Wadi Al-Shargi in Ain Zara District Southwest of Tripoli- Libya

The present study was designed to explore the species diversity and floristic analysis of the weed flora of selected farms in the Al-Wadi Al-Shargi in Ain Zara district southwest of Tripoli- Libya. A total of 85 different plant taxa have been collected and recorded from the study area representing 29 families of which 27 families and 67 species are belonging to dicotyledons, 2 families, and 18 species belonging to monocotyledons. The results of this study show that the dominance of the family Poaceae with 17 species followed by the family Asteraceae with 16 species, then the family Fabaceae and Brassicaeae with 8 species each. The rest families were represented by three species or less. The result has also shown the dominance of the genus Sisymbrium with three species. Lifeform spectrum analysis has shown the absolute dominance of therophytes with 80 species. Simpson’s Diversity index showed that the weed flora of the studied farms was highly diversified.