Abstract

• Morphological and anatomical characters of leaves, stems and roots of igna radiata (L.) Wilczek. belonging to family Fabaceae (SubfamilyPapilionoideae) were studied. The specimens were collected from Myingyan Township, Mandalay Region. In morphological characters, the plants were observed annual erect herb with brown hirsute. Leaves were pinnately trifoliolate compound and sparsely pilose. The flowers were bisexual, zygomorphic, pentamerous, hypogynous and papilionaceous. Pods were dehiscent, sparely pale brown hirsute and seeds greenish or yellowish green, glabrous. In anatomical characters, paracyctic type of stomata was observed on both surfaces of laminae. The opposite system of two vascular bundles was observed in the midrib. The vascular bundles of stem were showed continuous circular ring. The vascular bundles of petioles, lamina, midribs and stems were collateral type. The vascular bundles of roots were found tetrarch to polyarch.