Greens co-deputy leader Adam Bandt says there is a "role for greater membership involvement" as the party moves to decide whether it will directly elect its parliamentary leader by May next year.

At the party's national conference on Saturday, Mr Bandt said the parliamentary party had been talking "a lot" about increasing members' participation in leadership votes.

"It's fair to say that MPs understand and appreciate the mood for change and want to be a part of it," Mr Bandt told The Sun-Herald and Sunday Age.

Greens MP Adam Bandt addresses the Australian Greens National Conference at Ainslie School in Canberra. Credit:Alex Ellinghausen

With the backing of leader Richard Di Natale, Greens members have been talking about changing the structure of process of its parliamentary leadership for years. This includes changing to a model of co-leadership - where there is a male and non-male leader - popular with other Greens parties around the world.