Australia has and does have some great varieties. Mullumbimbi madness for one, Aussie Blue, Used to be a nice local one here called Marrawah madness. One tough plant, grown on the North west coast, so hit with forrociuse winds and the cleanest air and water in the world.(argubly).
Trouble is they have mainly gone or not worked properly.
Mullumbimbi madness would have to be the iconic aussie strain...fkn Kanga did some nice crosses with it to. Huge trees...like massive. (for the ones who haven't heard of it google kanga's grow or similar and search for it)
Nugs may have a seed and I know of a indoor guy in England on here who was traded a seed of it.
Thought my dad may have but the cops got his older seed stash.