Acacia aneura, Acacia acuminata and Allocasuarina huegliana. Prefer aneura though as it is much longer lived, appears resistant to all the boring pests as well as the gall rusts you see on acuminata. A lot of my earlier acuminata dominated plantations are pegging out with boring pest damage and it just creates work and detracts from the nitrogen fixing capacity of the legume base. Have you had a crack in your neck of the woods? They go bananas in those Darling Scarp gravels ...
