iarjmsIARJMSIARJMS2708-3594https://doi.org/10.47310/iarjms.2023.v04i02.035Microscopical Examination and Thin Layer Chromatography Detection of Olea europaea L.Leaves Growing in IraqTahanyAmirTawfeeqDepartment of Pharmacognosy and Medicinal Plants, College of Pharmacy, Mustansiriyah University, Baghdad, IraqThe Leaves of Olive (Olea europaea L.) are frequently used across Mediterranean and European countries as instance Spain, Greece, Italy, France,Turkey, Morocco, Iraq and finally Tunisia. Olea europaea L. has been traditionally used as a febrifuge, laxative, diuretic, emollient, hypotensive and skin cleanser. One of these more possible bioactive constituents is the secoiridoid called oleuropein. In addition to oleuropein, there are numerous bioactive substances present in olive leaves include triterpenes and flavonoids. This study aims are Phytochemical investigation of Olea europaea leaves growing in Iraq. The preliminary phytochemical screening of Iraqi O. europaea showed the presence of different phytochemical compounds such as terpenes, flavonoids, saponin and tannin. With absence of alkaloids that critical in the biological activities of O.europaea plant. Microscopically examination of the leaf of olive showed the presence of scales cells with hairs surrounded it. Finally, Kaempferol and Apigenen are Two flavonoids were detected in the alcoholic extract by TLC.