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
{i} variety of mint that produces yellow flowers with purple spots (native to North America); variety of mint that produces purplish-pink flowers (native to Europe)