Tetratheca affinisTetratheca affinis is a species of plant in the quandong family that is endemic to Australia.DescriptionThe species grows as an erect, open and leafless shrub to 10–70 cm in height. The pink-purple flowers appear from August to November.Distribution and habitatThe species occurs within the Avon Wheatbelt, Esperance Plains, Jarrah Forest, Mallee and Warren Interim [Biogeographic Regionalisation for Australia|IBRA] bioregions of south-west Western Australia. The plants grow on slopes, flats and swamp edges with sandy and lateritic soils.