The Bugleweed (Lycopus uniflorus) belongs to Lamiaceae (the Mint family). It is a perennial herb that is native to Japan, as well as the Korean Peninsula, north-eastern China, Siberia and North America. Thsi herb grows in montane marshes and it can reach 20-40 cm in height. The stems are upright and the leaves are ovate with coarsely toothed edges. The small white flowers bloom in whorls at axils from August to September. The Bugleweed is similar to the Hime-shirone (Lycopus maackianus), though it has characteristics of broader leaves and wider internodes.