According to a recent report from The Incline, yinzers commonly refer to them as monkey balls. The tree they come from is officially called the maclura pomifera. Other nicknames include osage orange, hedge apple, horse apple, bow wood, yellow wood or monkey brain tree.

Why is it called a Monkey Ball?

A monkey's fist or monkey paw is a type of knot, so named because it looks somewhat like a small bunched fist or paw. It is tied at the end of a rope to serve as a weight, making it easier to throw, and also as an ornamental knot.

What are Osage orange trees good for?

The early Native Americans esteemed the tree for its excellent wood, which made superior hunting bows. The tree wood was useful for war clubs, tomahawk handles, rope, and tannin. Early settlers and pioneers found the wood of the Osage orange tree incredibly useful as well.