Greens' Larissa Waters eyes Senate return

Former Queensland Greens Senator Larissa Waters says she will run for preselection for the next federal election after being disqualified from parliament for holding dual Canadian citizenship.

Ms Waters, who was born in Canada, quit the senate in August amid a citizenship bungle that embroiled seven parliamentarians, including her Western Australian colleague Scott Ludlam and Deputy Prime Minister Barnaby Joyce.

Australia's constitution bans anyone holding dual citizenship from sitting in parliament in a section aimed at ensuring MPs do not hold split allegiances.

Ms Waters was among five senators disqualified by the High Court on Friday.

"At the next federal election our party membership will vote to decide who it would like to be the candidate and I will nominate for that role," she told AAP.

Ms Waters, once deputy leader of the party, said the ruling was expected as the constitution was clear.

"I'm personally disappointed but I'm not surprised," she said in Brisbane on Friday.

"Putting party politics aside, first and foremost my heart goes out to the people who have lost their jobs today."

She will be replaced by former senator Andrew Bartlett, who ran second on the Greens ticket.

"I know he will work really hard and the party will rally behind him," Ms Waters said.