Overview of noun pennyroyal
The noun pennyroyal has 2 senses
- pennyroyal, Mentha pulegium -- (Eurasian perennial mint have small lilac-blue flowers and ovate leaves; yields an aromatic oil)
- pennyroyal, American pennyroyal, Hedeoma pulegioides -- (erect hairy branching American herb having purple-blue flowers; yields an essential oil used as an insect repellent and sometimes in folk medicine)
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