Greens senator Lee Rhiannon has criticised a decision to temporarily ban her from party room discussions as wrong and potentially unconstitutional, slamming leaks against her as "divisive".

Key points: Green senators accuse Senator Rhiannon of breaching faith, undermining negotiations with Government

Green senators accuse Senator Rhiannon of breaching faith, undermining negotiations with Government Temporary ban is attempt to bring NSW branch into line with federal party

Temporary ban is attempt to bring NSW branch into line with federal party Richard Di Natale says Senator Rhiannon is welcomed back once structural issues are resolved

The ban was announced on Wednesday night, after a marathon meeting aimed at resolving a bitter spat over Senator Rhiannon's conduct during negotiations over Gonski 2.0.

Green senators have accused her of breaching their faith and undermining negotiations with the Government. Senator Rhiannon denied this and said she felt bullied and harassed.

The temporary ban was an attempt to bring the NSW branch of the Greens into line with the federal party on key policy decisions.

Unlike other political parties, the NSW branch can instruct Senator Rhiannon on how to vote, even if it contradicts the federal party's position.

"Our party's constitution ensures members have a right to participate in decision-making, that's the way we do things in NSW," she said.

"I will continue to work closely with Greens members and defend their right to exercise their democratic involvement in the party.

"I stand with the Greens NSW co-convenors in my belief that the federal party room decision was wrong and in part unconstitutional and it will need to be reviewed by the National Council."

Greens' acting whip Nick McKim said the party could not function while NSW members were bound to vote against the federal party.

"This issue has highlighted a structural issue that needs to be addressed," he said.

But addressing the problem will not be easy. The NSW branch is likely to defend its distinct style of participatory democracy.

Senator Rhiannon also criticised "consistent backgrounding" from colleagues to the media, describing it as divisive to the party.

Di Natale says Rhiannon will be welcomed back

Australian Greens leader Richard Di Natale said Senator Rhiannon would be welcomed back once the structural issues were resolved.

"What we need to do is work with these issues, and come out of this stronger, and I'm confident we will," he told the ABC.

"What it means is that we all come to a meeting with a spirit of taking a position where we're prepared to accept compromise."

Senator Di Natale said the temporary ban was not a punishment for Senator Rhiannon's actions, nor was it an expulsion.

"It's actually a really critical decision for our party to recommit to our consensus decision-making processes," he said.

"If each state binds their senator we won't have an Australian Greens party room, we'd have a collection of independent states arriving at independent decisions."

Greens NSW lashed out at the decision, arguing the suspension was against the constitutions of both the Australian Greens and the state branch.

"We understand some federal MPs wish to review our governance," Greens NSW co-convenors Debbie Gibson and Tony Hickey said in a statement.

"We do not believe there is support within the party to change either the Australian Greens or Greens NSW constitutions."