he traditional knowledge of the Penesak ethnic group in Tanjung Batu Subdistrict, Ogan Ilir Regency, South Sumatra, on medicinal plant use has been passed down through generations. This study aims to document the medicinal plant species used by the Penesak people, including the plant parts used, methods of use, types of illnesses treated, and the use value of each species and family. It also id…