Our Pennyroyal (Hedeoma) should not be confused with the European Pennyroyal (Mentha pulegioides). Squaw mint is an indigenous annual plant with a fibrous, yellowish root, and an erect, branching stem, from 6–12 in. high. The leaves are ½ in. or more long, opposite, obscurely serrate, hairy beneath and on short petioles. The flowers are small … Continue reading Benefits and uses of American pennyroyal