A papaya hybrid that is torpedo shaped and has 5 flattened facets. The skin, which is edible, turns from green to golden yellow depending on level of ripeness. Wikipedia Article About Babaco on Wikipedia The Babaco (Vasconcellea ×heilbornii; synonym Carica pentagona), is a hybrid cultivar in the genus Vasconcellea from Ecuador. It can grow at high altitudes (over 2,000 m), and is the most cold-tolerant species of the Papaya relatives.