I think this is an exclusively Australian species. And maybe endemic to just Tasmania but I'm not sure of that. I don't have it or you would be very welcome to whatever seed there was.
So far as germination is concerned, collectors either in the wild or in the garden should drop each seed onto a sheet of paper and listen for the little click which denotes a seed with contents, or an embryo. So many have nothing in them or what is there is partially eaten by a small beetle. Fertile seeds also have a slightly plump person shape whereas infertile seeds are narrower and ferquently slightly bow (as in bow and arrow) shaped. It is helpful (or even necessary) to place fertile seeds individually by hand, upright in the seed mix, with just the pappus sitting on the top of the mix. In nature this is achieved by the seeds being carried by wind, even the lightest of breezes, and the weight of the actual seed placing it upright with the pappus erect.
