In the far North-Western region mainly in the Musgrave Ranges and Everard Ranges, on rocky hillsides and valleys. Associated with <I>Eucalyptus socialis</I> and other Acacia spp., in a tall shrubland vegetation. Soils; shallow, red, firm, sandy soils and neutral red earth. Rainfall 150-200 min. Also W.Aust., N.T. confined to the Central Australian area.