Scattered throughout the North-Western and Lake Eyre regions. One disjunct locality in the Eastern region is 10 km east-north-east of Yunta in creek, G. Gardner 5. viii. 1962. In hummock grassland to low woodland and tall shrubland usually in red or yellow deep sands on or between sandridges or along sandy creek banks and floodout areas, associated with <I>Acacia aneura</I>, <I>Triodia basedowii</I> and <I>Zygochloa paradoxa</I>. Soils; crusty alkaline and neutral red duplex, neutral red earths and red siliceous sands. Rainfall 125-200 mm. Also W.Aust., N.T., Qld and N.S.W.