Khirni is a tree species in the tribe Sapoteae, in the Sapotaceae family, It is a slow-growing but fairly large evergreen species. Ceylon Iron Wood is a tree or a shrub, 3-12 m tall, with gray bark and smooth branchlets. Alternately arranged leaves are often closely clustered towards the end of branchlets, with conspicuous scars. Leaf-stalks are 0.8-2 cm. The leaf blade is obovate to obovate-elliptic, both surfaces smooth, base broadly wedge-shaped to obtuse. Flowers arise in fascicles in leaf axils. Berry is obovoid-oblong to ellipsoid.