North-Western, Lake Eyre (eastern part), Nullarbor, Gairdner-Torrens Flinders Ranges (northern part) and Eyre Peninsula (northern part) regions, in open woodland tall or low shrubland scattered amongst <I>Acacia aneura</I> and <I>Triodia spp</I>. Soils; neutral red earths, red siliceous sand and shallow calcareous loam. Rainfall 200 mm. Also W.Aust., N.T., Qld and N.S.W.