Pennyroyal refers to two plants in the mint family, Lamiaceae. The European pennyroyal, Mentha pulegium, (also called Squaw Mint, Mosquito Plant, and Pudding Grass), is a plant in the mint genus, within the family Lamiaceae. Crushed Pennyroyal leaves exhibit a very strong fragrance similar to spearmint. Pennyroyal is a traditional culinary herb, folk remedy, and abortifacient. The essential oil of pennyroyal is used in aromatherapy, and is also high in pulegone, a highly toxic volatile organic compound affecting liver and uterine function.
Read more about Pennyroyal: Culinary and Medicinal Uses, Toxicity, Historical and Literary Mentions