Tetratheca filiformisTetratheca filiformis is a species of flowering plant in the quandong family that is endemic to Australia.DescriptionThe species grows as a diffuse to prostrate shrub to 40 cm in height. The flowers are pink-purple, appearing from October to January.Distribution and habitatThe range of the species lies within the Jarrah Forest and Warren IBRA bioregions of south-west Western Australia in the local government areas of Augusta–Margaret River, Denmark, Manjimup and Nannup. The plants grow in damp, sandy areas with winter wet season rainfall.