Anatomical Characteristics of Leucaena leucocephala (lam.) De.Wit Growing in Iraq

. Leucaena leucocephala (Lam.)De.Wit is cultivated in Iraq as an ornamental plant .In this paper anatomical characters of different parts of Leucaena leucocephala were studied in details ,the study included the characteristics of the epidermal cells ,as the anticlinal walls and the distribution of stomatal complexes of the leaflet ,stem, calyx and corolla .The ornamentation of cuticle as well as the internal structure of the stem ,pulvinus ,petiole ,leaflet and fruit were described , different types of crystals distribution in different parts of the plant also present .It was found that most characters have a good taxonomic value as a diagnostic characters for this species.