Flower of Mountain Soursop (Annona montana)
Fruit tree native to West Indies (S. America)
Common names: Mountain soursop, wild custard apple, guanabana de monte, corosselier batard, wild soursop, boszuurzak, Guanabana de perro.
It has an edible fruit, the pulp resembles the taste of Soursop and contains light brown seeds.
Photographed: Brisbane Botanic gardens (Mt. Coot-tha), Australia