👉 Calocarpum, also known as the "Pineapple" or "Apple Tree", is a species of flowering plant in the family Rutaceae that has been cultivated for centuries. It is native to South America and is often used in landscaping and as an ornamental tree. The fruit of Calocarpum is usually small, with a greenish-brown shell that opens when the fruit ripens. The inside of the fruit contains seeds, which are typically yellow or orange and can