Baikal skullcap (Scutellaria baicalensis) belongs to the Lamiaceae (the Mint family). It is a perennial herb that is native to eastern Siberia, northern China and the Korean Peninsula. This herb can reach about 60 cm in height, and the lanceolate leaves are arranged in opposite. The spikes are borne, and the purple, labiate flowers bloom in summer. The dried roots are called "Scutellariae radix", and used as a herbal medicine for diuresis or anti-fever agent.