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Native vegetation is mainly heath, mallee heath and scrub mallee growing in infertile sands. The heath and mallee heath contain a wide variety of shrubs such as desert banksia, scrub cypress pine, grass tree, she-oak, tea-trees and heaths. The more prominent shrubs in the scrub mallee are scrub cypress pine, broom heath-myrtle, broombrush and tea-trees.
The region is considered to be the best single area in Victoria for reptiles with over fifty species of lizards and snakes recorded. Ninety-three species of birds have been recorded in the park including the extremely rare western whipbird. Mammals found in the area include the silky mouse, western pygmy possum and Mitchell's hopping-mouse.