Humans, however, have brought a great winnowing: Out of thousands of wild types, only a few dozen have become commercial behemoths like the navel orange, Eureka lemon, and Mexican lime.

Threats to species health as well as also insight into the wood ... Osage oranges have a sticky, milky sap on the inside. Osage orange trees, which grow to 20 to 40 feet tall, are found in moist, well ...