Begonia batusangiensis Ardi & D.C.Thomas, Edinburgh Journal of Botany 80: article 1980, 4. 2023
Holotype: Indonesia, Sulawesi, Southeast Sulawesi, Gunung Batusangia, alt. 1200 – 1250 m, 5°15'17.269"S, 121°52'41.206"E, 25 Jun 2022, Ardi, W.H. 767 (FIPIA; isotypes: CEB, SING)