Queensland State Archives posted a photo:
Indigenous Australians enjoyed a diverse supply of interesting edible plants in the millennia before white settlement. Some, like macadamias, have been cultivated widely around the world for many years, but in the last few decades other lesser known “bush tucker” plants have been discovered by modern Australian chefs and gardeners. One of the estimated 5,000 edible plant species across Australia is Capparis mitchellii, commonly known as Wild Orange, Native Pomengranate or Mitchell’s Bumble Tree. The attraction of growing and eating these plants is not only their high nutritional value and unique flavours, but that they also provide habitat for native birds and insects and, therefore, a way of maintaining biodiversity.
Capparis mitchellii is a thorny tree which grows about six to eight metres high and four to six metres wide. It is slow growing. It apparently has a role in the dreaming stories of the Adnyamanthanha