Abstract
In this study, the vegetation of 63 sabkha and sewage canals in central region of Saudi Arabia was analyzed. A total of 109 plant species belonging to 83 different genera and 34 different plant families were collected. The most common plant families were Chenopodiaceae (18 species), Poaceae (16 species) and Asteraceae (10 species). Vegetation in the study area was classified into 6 groups; two of them were found in sabkhas only, one was found in sewage canals only and the other three were found in both habitats. The main factors controlling the plant presence and vigour in the studied wetlands were soil salinity, pH, EC, soil texture and content of organic matter.