The black apple is a tropical fruit tree of the Sapotaceae family.
It has large, thick, black-skinned fruit that contains stringy white flesh.
Jinibara people consumed black apple fruit and early settlers made sweetened preserves from it.
The black apple is highly sought after by fruit-eating fauna in the reserve.
When walking along the Mary Cairncross tracks look for its fluted trunks with low-growing shoots and leaves.