And also the leaf, petiole, root of, leaf of Diffenbachia picta, storage organ of Dracontium nivosum shows H- shaped raphides Leaf, length of raphides is longer in Amorphophallus campanulatus (250.957μm), shorter in Diffenbachia picta (17.992 μm). Breadth of raphides is greater in Amorphophallus campanulatus (6.116 μm), smaller in Colocasia