Dicksonia and Hardenbergia, are found in Australia?
Dicksonia Dicksonia is a genus of tree ferns in the order Cyatheales. It is regarded as related to "Cyathea", but is considered more primitive, dating back at least to the Jurassic and Cretaceous periods. The fossil record includes stems, pinnules, and spores.
Threlkeldia Threlkeldia is a genus of annuals or short-lived perennials in the family Amaranthaceae. There are two species, both of which are endemic to Australia. Together they occur in all Australian states except Queensland.