Abstract

The present investigation deals with the different life form categories and biological  and in several stages at different periods. A total of 274 species, 189genera, and 66 families were identified. Most of the recorded species were native (80.65%).
Biological spectrum of the present study shows that Therophytes (30.29%) were the most dominating life-form, followed by Chamaephytes (27.37%), Hemicryptophytes (21.89%). Chorological study showed that species belonging to the regions of Somalia Masai (28.83 %) and Sudanian (25.91%), Arabian (21.53%), Irano-Turanian;(20.07%), Saharo-Arabian(18.61%),  Mediterranean (17.88%), were most important ecological groups in the investigated area.