Green MP Marama Davidson has confirmed she is standing for election to the party’s female co-leader role.

She's made the announcement at the Otara Pool and Leisure Centre in south Auckland.

Nominations for the role opened on Friday and will close next Friday.

Ms Davidson is in second spot on the party's list.

Her likely candidacy has been well telegraphed in advance, but party rules banned formal announcement until nominations had opened.

Considered the front-runner to succeed Metiria Turei, Marama Davidson is thought likely to face competition for the role from Conservation Minister Eugenie Sage and Minister for Women Julie Anne Genter.

Delegates’ votes will be counted and the successful candidate will be announced on April 8th.