The feijoa is the fruit of Acca sellowiana, an evergreen shrub or small tree, 1-7 m in height. It comes from the highlands of southern Brazil, parts of Colombia, Uruguay, Paraguay and northern Argentina. They are also grown throughout Azerbaijan , Iran (Ramsar) , Georgia, Russia (Sochi) , New Zealand and Tasmania.
You should try at least figuring it out before coming here. It takes 2 seconds.