*m. Xpiperita L.piperita
Leaves with a slightly pubescent petiole mostly at least 4 mm long, lanceolate to narrow-elliptic, up to 6 cm long, serrate. Corolla dark lilac. Rhizomatous herb with characteristic peppermint scent. Coast. Damp places. Introd. from Europe. Fl. summer–autumn. Peppermint