Pennyroyal, also called mosquito plant, pudding grass and squaw mint, is a member of the mint family once used by the ancient Greeks and Romans to flavor wine and pudding.
Early American colonists used the dried herb to discourage fleas and other pests, a purpose for which the herb is largely limited to today due to the presence of toxic compounds in the plant.
SAFETY : Pennyroyal should not be taken internally. Pregnant women should not handle the herb. Use caution around small children and pets.