It is "grossly unfair" for Green members in Northern Ireland to have a vote on whether the party should enter a coalition Government in the Republic while their southern counterparts enjoy no similar veto here, a party member has said.
She told the Belfast Telegraph that Greens here should abstain in the crucial vote, which will be counted on Friday.
Green Party leader in Northern Ireland Clare Bailey MLA, deputy leader Mal O'Hara, Rachel Woods MLA and local party councillors have voiced their intention to vote against the blueprint agreed with Fine Gael and Fianna Fail.
A total of 195 of the Greens' 600-strong membership here have registered to vote on the draft programme for government.
But the party member said that local Greens should step aside from the vote and abstain.
She described Ms Bailey's decision to "rally representatives in the north" against the draft programme for government as "unwise".
She said: "The rule that allows northern members to participate operates only one way.
"Members in the south would have no such say in the north.
"The move by Clare Bailey is a political misstep with potential unintended consequences.
"If there is a marginal rejection of the programme for government in this week's vote, there could be anger that citizens in another jurisdiction were able to affect the outcome.
"This issue could come back to haunt Clare."
The party member added: "At most, members in the north who object to the programme for government should have been instructed to abstain out of respect for the fact that the programme for government impacts on a separate jurisdiction where fellow members have no reciprocal influence on the affairs of the northern party.
"If the Green Party in the north was invited to join the Stormont Executive, which includes the climate change-denying DUP, as things currently stand party members in the south would have no say on that."
When asked to comment on the issue, a Green Party spokeswoman said: "All fully paid-up members of the Green Party across the island are entitled to partake in the democratic process as set out in our constitution."
A total of 2,627 Green members across the island are registered to vote on the blueprint to enter government. Of the three possible coalition partners, the Greens require the biggest endorsement from their membership to proceed. At least two-thirds of members registered to vote must back the deal. Ms Bailey's deputy Mr O'Hara joined her in opposing the blueprint.
"I will be voting no on the proposed programme for government," he said. "While there are significant gains on environmental issues, the systemic social and economic action that would ensure a just transition are not met by this draft deal.
"I would urge Green Party members across this island to vote no."
On Sunday Ms Bailey joined three Green TDs - Francis Duffy, Patrick Costello and Neasa Hourigan - to oppose the deal.
"This offer of government represents one of the most fiscally conservative arrangements in a generation," they stated.
"It's a deal that was negotiated in good faith but fails to deliver on our promise to tackle homelessness and provide better healthcare.
"It sets out an inadequate and vague pathway towards climate action.
"Transformative change was called for by the electorate earlier this year. That call must be answered by not only the Green Party, but every party that promised positive change."
North Down MLA Ms Woods came out against the blueprint, too.
As did Belfast City councillors Anthony Flynn and Brian Smyth.