NSW Greens MP Jeremy Buckingham has lashed out at his "rotten" party after he was formally asked to step down following a vote on the weekend.
The Greens NSW State Delegates Council passed, by consensus, the proposal to request Mr Buckingham vacate his position and ticket during a meeting on Saturday, weeks after he was accused of sexual misconduct.
It was agreed his presence would stop the party from campaigning effectively ahead of next year's election, a statement said.
The MP has been the subject of a 2011 sexual harassment allegation made under parliamentary privilege by factional rival Jenny Leong, although an independent investigation recommended no adverse findings against him.
"While ... I have poured my heart and soul into the Greens for nearly 16 years, the fact is that the NSW Greens as an organisation is corrupt and rotten," he said following Saturday's vote.
"It's a sad and disappointing day for the NSW Greens."
Mr Buckingham, who has been under sustained pressure to resign despite denying the allegations, said the party had rewarded the bullies and lynch mob.
But the MP stopped short of commenting on whether he would resign, saying he would hold a media conference in Sydney on Sunday to provide further information.
He said the proposal to request his resignation was factional warfare and it abandoned grassroots democracy by overturning a democratic preselection result.