Osmorhiza longistylis is a perennial herb of North America. It is known as aniseroot, longstyle sweetroot, American sweet cicely, licorice root, wild anise, or simply sweet cicely, a name that applies to other members of its genus Osmorhiza generally. It is a medicinal herb that was used by Native Americans. In use it should not be confused with species of poison hemlock, water hemlock, or baneberry.