Orthosiphon aristatus is a herbaceous perennial and member of the family Lamiaceae (Labiatae), more commonly known as the mint family. It is a medicinal herb found in many places across the globe including China, South East Asia, the Indian subcontinent and the tropical regions of Australia.The plant is quite tall and can reach a height of around 40″ inches. This herb grows in the form of shrubs and the whiskers are only visible up close. It may spread out to cover an area of around 12″ – 36″ inches. Some variations of the plant also yield bluish-violet or white flowers. The variant with the white flowers has red stems and visible leaf veins and is known to have higher potassium content (better diuretic properties). The ovate leaves are characterized by long stamens (whiskers) hence the name cat’s whiskers.The flowers are tube-shaped with the petals sticking out like ears.