Peperomia unifoliata is a species of epiphyte or lithophyte from the genus Peperomia. It was first described by Ricardo Callejas and published in the book "Revista Mexicana de Biodiversidad 82(2): 378âÂÂ380, f. 15AâÂÂE. 2011.". It primarily grows on wet tropical biomes. It is endemic to Costa Rica.