I'm not sure I could find that page from scratch again
It's pretty bad - if you look just at importing seeds then Hemerocallis are not on the permitted list. Somehow I managed to find the daylily rust page that does allow them, but don't remember how.
It would be the same fungus as everywhere else, Puccinia hemerocallidis. I know they were aware of its arrival in Queensland in 2002 or thereabouts. Perhaps they are concerned about bringing rust in to other areas where it isn't currently endemic, or if it is already elsewhere they don't know about it?