Pennyroyal is a flowering herb which is used for its medical properties. It is used as an abortifacient.
Behind the Scenes
Pennyroyal is likely a reference to Mentha pulegium, commonly called (European) pennyroyal, which is used as an insecticide, pest repellant, an emmenagogue, and an abortifacient. Historically, real-life European pennyroyal has also been used as a mint flavoring in herbal teas and foods. Tea made from pennyroyal were used for cold relief, fevers, coughs, indigestion, liver problems, kidney problems, and headaches.