Anatomical investigations on root, stem, and leaf of Gentiana olivieri Griseb

Gentiana olivieri Griseb. (Afat) (Gentianaceae), which has many bioactive compounds is used as antidiabetic, hepatoprotective, digestive aid, antidepressant, and antianemic in traditional medicine. Root, stem, and leaf sections of G. olivieri were taken free hand or by sliding microtome and examined on light microscope. Anatomical characters of the species were observed to be similar to the usual features of Gentianaceae anatomy. Intraxylary phloem, which was primarily the distinguishing feature between Gentianoideae and Menyanthoideae sub-families was observed in G. olivieri roots.