In Ayurvedic texts the description of ‘Apathyanimittaja Prameha’ which is generally seen in obese individuals have a clear cut resemblance with type-2 diabetes and physicians believe in treating diabetes with herbal dietary supplements among which Quassia amara Linn. is a small indigenous tree native of Suriname. Detailed investigation of Transverse section including its powder of heartwood of Quassia amara Linn. was carried out. Preliminary organoleptic features and results of powder microscopy reveals presence of tannin and large amount of fibres. The information generated by this particular study will provide relevant pharmacognostical and physiochemical data needed for proper identification and authentication of heartwood of this particular species.