horsemint

Noun

• a coarse Old World wild water mint having long leaves and spikelike clusters of flowers; naturalized in the eastern United States

• tall erect perennial or annual having lanceolate leaves and heads of purple-spotted creamy flowers; many subspecies grown from eastern to southwestern United States and in Mexico

• an annual horsemint of central and western United States and northern Mexico

Related words

• Synonyms: 
  Mentha longifolia , Monarda punctata , lemon mint , Monarda citriodora