» This article is about the herb; the tree Agonis flexuosa is also commonly known as peppermint. Peppermint (Mentha × piperita) is a hybrid mint, a cross between watermint (Mentha aquatica) and spearmint (Mentha spicata). The plant is indigenous in Europe and now widespread in cultivation throughout all regions of the world. It is found wild occasionally with its parent species. Botany It was first described by Linnaeus from specimens collected in England; he treated it as a species, but… (More on Peppermint)