Antipodean Greens have established themselves as the rudest on the planet, with the New Zealanders easily winning the local derby.

Tomorrow Prime Minister Julia Gillard will address the New Zealand Parliament in Wellington in what her Kiwi counterpart, conservative John Key, had hoped would be a first.

The Greens vetoed a plan to invite Julia Gillard to address the NZ Parliament while it was in session.

“In New Zealand, no head of government or head of state has addressed a session of parliament and that’s a principle that we’re quite keen to keep,” NZ Greens co-leader Russel (Russel) Norman told AAP.

“The governor-general isn’t even allowed onto the floor of parliament, our own head of state.”

If it were allowed, it could permit future governments inviting “all sorts of unpleasant people, like George Bush, for example …

George Bush? Unpleasant? He would never have been so rude to a guest.

Julia Gillard will still get to address New Zealand MPs in the chamber, so this is just a bit of symbolic bullying from the Greens.

But I bet they wouldn’t be objecting if it were Al Gore.