Justification of Ecoregion Delineation The Nullarbor Plains Xeric Shrubland includes the ‘Nullarbor’ IBRA, and is characterized by its unusual limestone substrate and uniform, treeless vegetation, mostly widespread saltbush and bluebush shrubs (Thackway and Cresswell 1995).
References Thackway, R. and I. D. Cresswell. editors. 1995. An Interim Biogeographic Regionalisation for Australia: a framework for establishing the national system of reserves, Version 4.0. Australian Nature Conservation Agency, Canberra.