horsemint

n. 香蜂草屬植物、美洲薄荷

英文釋義

1. an annual horsemint of central and western United States and northern Mexico
2. 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
3. a coarse Old World wild water mint having long leaves and spikelike clusters of flowers; naturalized in the eastern United States