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 • Syn: pennyroyal, American pennyroyal • Hypernyms: herb, herbaceous plant • Member Holonyms: Hedeoma, genus Hedeoma • Substance Meronyms: pennyroyal oil, hedeoma oil
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