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Abstract
The present work aimed to study the vegetation-environment relationships in Wadi Rishrash, Eastern Desert of Egypt. A total of 40 stands were studied, using ten quadrates (10 m {u00D7} 10 m) per stand. Moreover, periodic phenological observations were carried out on 16 species representing the most common plants in the study area. A total of 80 species belonging to 29 families and 71 genera were identified. Asteraceae has the highest contribution to the total flora (16 species). Chamaephytes represented the predominant life form (34%) followed by therophytes (26%) and hemi-cryptophytes (25%). Monoregional taxa represented 22.5 % of the recorded species. About 53.75% of species were bioregional, while pluriregional species formed 23.75 % of the total species