Clethra suaveolens Turcz. in Bull. Soc. Imp. Naturalistes Moscou 36(3): 230-231. 1863 sec. Ulloa Ulloa & al. 2018
- =Clethra vulcanicola Standl. in J. Wash. Acad. Sci. 13: 353. 1923 syn. sec. González-Espinosa & al. 2011
- =Clethra glaberrima Lundell in Phytologia 1(6): 219-220. 1937 syn. sec. Davidse, G. D., Sousa Sánchez, M., Knapp, S. & Chiang Cabrera, F. (Eds.) 1996
- =Clethra matudae Lundell in Phytologia 1(6): 220. 1937 syn. sec. González-Espinosa & al. 2011
- =Clethra nubium Standl. & L.O. Williams in Ceiba 1(3): 159. 1950 syn. sec. González-Espinosa & al. 2011
- =Clethra viridifolia Standl. & L.O. Williams in Ceiba 1(3): 161. 1950 syn. sec. González-Espinosa & al. 2011