Peppermint (Mentha piperita), strongly aromatic perennial herb of the mint family. The mint leaves tastes cool. It is widely cultivated in many regions of the world ; born wet in the water, the elevation can be as high as 3,500 meters.Peppermint can consist of fresh or dry leaves for use in food or as a tea. It is also used to make dishes or desserts to remove the smell of fish and mutton.