Rytidosperma tenuius, or purplish wallaby grass, is an Australian species of wallaby grass found in south eastern Australia, usually on clay or sandy soils in the drier eucalyptus woodlands.[1] The grass is perennial, and it may grow up to 1.2 m tall.[2] It is native to the Australian states of Queensland, New South Wales, Victoria, South Australia and Tasmania, and it has been introduced to New Zealand.[3] [4] The inflorescences have a characteristic reddish colouration, and the attractive purplish bracts of young flowers can also aid in identification.[5] The specific epithet tenuius is derived from the Latin for thin.[6]