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Noun: American pennyroyal
  1. Erect hairy branching American herb having purple-blue flowers
    "American pennyroyal dotted the meadow with its tiny purple blooms";
    - pennyroyal, Hedeoma pulegioides

Derived forms: American pennyroyals

Type of: herb, herbaceous plant

Part of: genus Hedeoma, Hedeoma

Encyclopedia: American pennyroyal