With the Wanman, that boundary in the south is delineated by the transition from their clumpy porcupine grassland to the thick mulga shrubland of the Kartudjara.
[3] Their harsh, almost treeless, sandhill landscape is mostly devoid of larger game like emu and kangaroo, though the hare wallaby and opossum, if caught, would provide some meat.
Its poor grassland constrains the Wanman to develop grass-milling to eke out food from seeds, one of the few Australian tribes, such as the Ualarai and the Pila Nguru, who resort to this technique.
[4] A list of the primary foods was provided to Norman Tindale by one tribesman: Portulaca seeds, once harvested, were worked in stone-rings.
Such estates gave exclusive wood-cutting rights to each member of the group[4] but Warnman from all clans had equal access to the major watering holes.