Aussies, do you have any of these seeds?

I'm looking for seeds of Centranthus macrosiphon, an annual form of Centranthus. It is - according to some websites - a weed in your country.

If anyone (from Australia or anywhere else for that matter) has some seeds to trade, or you know of where I can order some, please let me know. Here's a link to a bit more information about the plant, and a photo. (It's about mid-way down the page): http://members.iinet.net.au/~weeds/western_weeds/urt_val_ver_vio_zygo.htm

Thanks!