Pharmacy name: peppermint leaves - Menthae piperitae folium (formerly Folia Menthae piperitae), peppermint oil - Menthae piperitae aetheroleum (formerly Oleum Menthae piperitae). Botanical description. Peppermint is a hybrid that was found in England in 1696 among the mint plantations of Mentha spicala L. and has since been cultivated. Therefore, peppermint used for medicinal purposes is not found in a wild state of peppermint: even the "wild" plants that emerged from the crops soon undergo a reverse splitting. Dilute peppermint with offsets. It grows especially well on swampy soil and limestone clay. Peppermint forms a creeping rhizome and numerous above-ground shoots, reaching a height of 30-80 cm. The tetrahedral stems are weakly branched at the top. Leaves are elongated and elliptical, up to 4-7 cm long (often smaller individual leaves), roughly toothed along the edge. Pink-red flowers are located in dense ear-shaped inflorescences, often divided into parts. The cultivated pepperm