There it is, a native species of olive. A tropical one at that! Could it be a substitute to the olive of commerce (Olea europaea)? Can it be eaten? I don’t know, but perhaps someone should try. The fruit is reputably eaten by a number of birds, but of course that does not mean that it is safe for human consumption. Other tropical species of Olea also occur in the Southeast Asian tropics.
Maybe modern Australians could start developing a rich mythology around the plant, like what has come up around the European Olive tree.
The feature of the leaves of this species make it almost instantly recognizable. The leaves are oppositely arranged in a flat plane, they are dark green and shiny and on the leaf underside, there are foveoles (hairy orifices) at practically every point where a vein comes off the midrib. On the pale coloured twig, it is also easy to see lenticels (little pits).