The term 'Tree of the Custard Apple Family' refers to the PAPAW tree, which is a species of small deciduous tree native to the eastern United States and Canada. It is also known as the Pawpaw or Asimina triloba, and is the only member of the genus Asimina in the Annonaceae family. The PAPAW tree produces edible fruit that is similar in taste to a custard apple. The fruit is often used in desserts, jams, and other culinary dishes.