Sapindus mukorossi, commonly known as the Soapnut Tree, Reetha, or Indian Soapberry, is a medium to large deciduous tree native to the Indian subcontinent. It is best known for its fruit, which contains natural saponins used as an eco-friendly, biodegradable detergent. In addition to its practical use, the tree provides shade, supports sustainable farming, and is often planted in agroforestry systems.