One of Eastern Australia’s native mints, mentha australis is found growing near rivers and creeks, and in marshy areas. It grows fast, can tolerate heavy clay soils, and roots spread quickly to colonize an area. Like other mints, it contains menthol, which has a decongesting, clearing effect on humans. It is used by aborigines steeped as a tea for this purpose, and is a native substitute for recipes that call for other mints. mentha australis grows to a height of 80cm and has thin lanceolate leaves and white flowers.