Martin Willis / Spinifex Grass (Spinifex sp) in desert, Kata Tjuta, Australia

Colin Monteath/ Hedgehog House / Spinifex Grass (Spinifex sp) on sand dune with footprints, Simpson Desert, Northern Territory, Australia

Jouan & Rius / Slopes covered by spinifex grass, Flinders Ranges National Park, South Australia, Australia

Jouan & Rius / Slopes covered by spinifex grass, Flinders Ranges National Park, South Australia, Australia

Martin Willis / Spinifex Grass (Spinifex sp) in desert, Kata Tjuta, Australia

Konrad Wothe / Spinifex Grass (Triodia pungens) seedling in red sand showing track made by wind, Strzelecki Desert, South Australia, Australia

Martin Willis / Hairy Spinifex (Spinifex hirsutus) grassland, Kimberley, Western Australia, Australia

Martin Willis / Northern Quoll (Dasyurus hallucatus), among granite rocks in Spinifex grass habitat, Mitchell Plateau, Kimberley, Western Australia, Australia

Frederique Olivier / Red sand desert, with Spinifex grass (Spinifex longifolius) and other vegetation growing after rain, Exmouth Peninsula, Western Australia. May 2014.

Frederique Olivier / Red sand desert, with Spinifex grass (Spinifex longifolius) and other vegetation growing after rain, Exmouth Peninsula, Western Australia. May 2014.

D. Parer & E. Parer-Cook / Rufous Hare-wallaby (Lagorchestes hirsutus) on red sand by Spinifex grass at night, Tanami Desert, Northern Territory, Australia

Chien Lee / Spinifex Grass (Spinifex sp) above rock gorges, Karijini National Park, Western Australia, Australia