Sclerenchyma is a type of plant tissue that provides structural support. It is composed of thick, lignified cell walls, making it rigid and strong. Sclerenchyma cells are usually dead at maturity and come in two main forms: fibers and sclereids. Fibers are long and slender, while sclereids are shorter and irregularly shaped. This tissue is commonly found in various parts of plants, including stems, leaves, and seeds. The presence of sclerenchyma helps plants withstand mechanical stress and contributes to their overall stability. It plays a crucial role in the growth and development of many plant species.