As a child, the whole family would go into the bush & gather Quandong fruit to make pies with. It needs a host plant to survive, and has a really tart taste, but is soooo yummy! After two years of searching, I finally tracked one down for my garden.
Lactuca serriola - Prickly Lettuce - Milk Thistle, Edible Weeds in Australia. The milky sap from this plant cures warts. Just dab the sap from a cut off stem or leaf onto the wart times a day for a week or so,and they will go away.