Intro: Abu Dhabi Emirate with the rest of the United Arab Emirates being situated in the dry warm sub-tropical latitudes of the northern hemisphere is not bestowed naturally with the lush green vegetation common to the wetter and more moist regions of the world. Inspite of the natural extreme aridity and desert conditions prevailing in Abu Dhabi, the Emirate is not completely devoid of natural plant life. Certain areas like the Sabkha (salty flats) or extremely arid and moving sand dunes may have no worthwhile plant life but varied and specialized type of plant life does exist in some cases in small patches and in other cases in fairly extensive areas of the Emirate. In fact in the pre-oil period natural vegetation was a major source of livelihood of the nomadic tribal people who lead a pastoral life and their chief occupation then was rearing of livestock. It also provided fuelwood, charcoal and some timber.