Found growing in the Cumberland State Forest, NSW.
A closer view of the plant
Here is a link that might be useful:
Sorry, Salt. Don't think so. There are no thorns and the leaves are almost completely circular and dished.
Wow!!! 2 of the top 4 or 5 genii on this site stumped?
I don't think Coprosma. I agree similar type of growth, but just doesn't seem to match any other criteria I see on the web. This one, apart from anything else, is not far short of 3m tall
Back to my reference books for futher inspiration - I hope
No genus here! I can't keep Lunaria and Hesperis straight.
Just bumping this in the hope that Tedhort comes-a-visiting. :-)
Try Everistia vacciniifolia.
I suspected you would know this one, as it has such distinctive foliage and you seem to be the Ozzie Guru here. :-))