These are some paw paws I spotted while out hiking one day. The paw paw is the largest edible fruit indigenous to the United States.
According to Wikipedia, in Australia and New Zealand the name 'paw paw' refers to a variety of Papaya. You might be thinking of a different fruit.
It's funny the way synchronicity works. My husband was just talking to me yesterday about paw paws. He was watching somebody talk about them on a youtube video.