Taxonomy of Acacia gain much importance in systematics. Acacia face the problems in their identification due to confusion in some morphological (macromorphology) characters, but these problems can be overcomed by using classical and applied approaches of taxonomy. Classical approaches are morphology and anatomy whereas the applied approaches include their biochemical analysis. This book is a comprehensive treatment of the subject matter relating to the identification and taxonomy of some important Acacia trees in Sudan by using macro and micromorphology and biochemical markers of seeds.