 River channels in the region support River Red Gum ( Eucalyptus camaldulensis ) and River <unk> ( Acacia stenophylla ) communities . Nearby higher areas contain Black Box ( Eucalyptus <unk> ) woodlands and a salt @-@ tolerant grass , saltbush and daisy understorey . Yellow Box ( Eucalyptus melliodora ) and Grey Box ( Eucalyptus microcarpa ) occur along with Cypress Pine ( Callitris <unk> ) on areas rarely subjected to flooding . The area away from the rivers often consists of treeless plains , consisting of various saltbush ( Atriplex ) species , Cotton Bush ( <unk> <unk> ) and varieties of Danthonia and <unk> native grasslands . 
