Scattered in the North-Western, Lake Eyre, Nullarbor, Gairdner-Torrens, Eyre Peninsula (northern part) regions, in open scrub to tall shrubland or low woodland, often associated with <I>Acacia aneura</I> and <I>Casuarina cristata</I>. Soils; mainly sandy calcareous. Rainfall 150-200 mm. Also W.Aust., N.T., Qld and N.S.W.