Mentha cervina

'Mentha cervina', a member of the mint genus, is a sprawling herb growing up to .3m tall. It is very closely related to the "real" pennyroyal. It has very fragrant leaves and foliage. Its essential oils are high in pulegone, a natural abortificant.

Resources

 * http://www.pfaf.org/database/plants.php?Mentha+cervina