- lemon mint, horsemint, Monarda citriodora - an annual horsemint of central and western United States and northern Mexico
--1 is a kind of monarda, wild bergamot
- 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
--2 is a kind of monarda, wild bergamot
- horsemint, Mentha longifolia - a coarse Old World wild water mint having long leaves and spikelike clusters of flowers; naturalized in the eastern United States
--3 is a kind of mint