lemon mint, horsemint, Monarda citriodora -- (an annual horsemint of central and western United States and northern Mexico)
horsemint, Monarda punctata -- (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)
horsemint, Mentha longifolia -- (a coarse Old World wild water mint having long leaves and spikelike clusters of flowers; naturalized in the eastern United States)