​BUGLE, or Ajuga, L. a genus ​of plants, comprising three species, all of which are natives; but we shall only mention the reptans, or common bugle, which grows in woods and moist pastures, in many parts of Britain. It has creeping suckers, and bears blue, red, and white blossoms in May. Its roots are astringent, and strike a black colour with vitriol of iron.