Pulegium, American pennyroyal, Run-by-the-ground, Lurk-in-the-ditch, Pudding grass, Mosquito plant, Squaw balm, Squawmint, Brotherwort, Churchwort, Fleabane, Flea mint, Stinking balm, Tickweed
This perennial species is also commonly known as pennyroyal, its has a low spreading habit and can be used as a ground cover. Though it is somewhat sparse in the winter and can be invaded by the more aggressive weeds. Crushed pennyroyal leaves emit a very strong aroma similar to spearmint. Small purple blooms are produced on vertical inflorescences in whorls during the summer. The fresh or dried plant will repel fleas, ants, moths and rodents.