I'm very interested in knowing the name of this tree. Does one of the pictures show a type of fruit, the green cluster dropping down from the branch?
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Possibly the hybrid Carica x pentagona, also known as Babaco. The taxonomy seems somewhat confused, with many references giving the name as Vasconcellea x heilbornii or just Carica pentagona. The Plant List shows Carica x pentagona is the accepted name.
Note: The link below does not show any images- it is a 'working list' of plant names and is the most up to date and reliable resource I know for checking validity of taxonomic epithets. I included it here just because there is so much variation in internet references around the taxonomy of Babaco.
Edit: (following @Sue's comment below) Here is another link with some more info and images:
The images below are from the Daleys Fruit Tree site.