Maclura pomifera

The Osage orange is a strong tree.

It grows in the United States. The tree has bumpy fruit. The fruit looks like a yellow orange.

If you cut the fruit, white liquid comes out. People do not usually eat it. The wood is very hard and strong. Native Americans used it to make bows.

Some people use the tree as a hedge. It has sharp thorns to keep animals out. This tree is a very tough plant.

The Osage orange is a hardy tree.

It grows in the south-central United States. It is part of the mulberry family. This tree has many names. Some people call it a hedge apple. Others call it a monkey ball.

The fruit looks like a bumpy, yellow-green orange.

However, it is not a real orange. If you cut the fruit, a sticky white latex comes out. This is a milky liquid. Most animals and people do not eat the fruit. Some think the fruit grew with large animals that are now extinct. These animals might have helped spread the seeds.

The wood is very special. It is heavy, hard, and strong.

Native Americans used this wood to make bows. They liked it because it was flexible. Early settlers used the trees as living fences. The trees have sharp thorns. These thorns kept animals out of gardens. People used the trees as hedges until barbed wire was invented. Today, these trees are still used to block the wind on large farms.

The Osage orange is a very hardy tree.

It belongs to the mulberry family. This tree is native to the south-central United States. It can grow in many different places now. You might find it in the United States or even in Canada. Some people have even planted it in Europe. It is a tree that can live for a very long time. One famous tree in Virginia is almost 350 years old.

This tree is important for many different reasons.

This tree has a very interesting way it works. The fruit looks like a bumpy, yellow-green orange.

However, it is not a real orange at all. If you cut the fruit, a sticky white latex comes out. This latex is a milky liquid that oozes from the fruit. The fruit is mostly made of water and pectin. Most people and many animals do not eat it. It has a hard, dry texture that makes it hard to eat. Some animals, like squirrels and deer, might eat the seeds or the fruit. Some scientists think the fruit once grew with huge animals that are now extinct. These animals might have helped spread the seeds long ago.

People have studied this tree for a long time. A Scottish explorer named William Dunbar wrote about it in 1804. In that same year, Meriwether Lewis sent some cuttings to President Thomas Jefferson. These specific cuttings did not survive, but the tree lived on. The name of the tree comes from the Osage people.

The scientific name, Maclura pomifera, also tells us something. The word pomifera means it is a fruit-bearing plant. The genus name honors a geologist named William Maclure.

The wood of this tree is very special.

It is heavy, hard, and very strong. The wood is also quite flexible. Native Americans used this wood to make very good bows. The Comanche people also used it for their bows. Early settlers used the trees to make living fences. They would prune the trees so they grew into thick hedges. These hedges had sharp thorns to keep animals out of gardens. People used these hedges until barbed wire was invented in 1874.

You can see how this tree connects to the world around us. It is used today to protect soil from wind. In 1934, it was part of a huge project called the Great Plains Shelterbelt. This project planted millions of trees to help the land. The wood is so strong that it can be used for boats. It is also used to make fence posts. Even though it has many strange names, like hedge apple or monkey ball, it is a very useful tree. It continues to grow in many parts of the world today.

The Osage orange, known scientifically as Maclura pomifera, is a hardy deciduous tree or large shrub. It belongs to the Moraceae family, which is the mulberry family. This tree is native to the south-central United States. It is known for its unique fruit and incredibly strong wood. While it looks like a citrus fruit, it is not actually related to oranges.

The tree has several distinct physical features. Mature trees often have short trunks and round-topped canopies. Their roots are thick and fleshy, covered in bright orange bark. The mature bark of the tree is dark, scaly, and deeply furrowed. The leaves are long and oval with a slender point. They are thick and dark green on top, but paler on the bottom. In the autumn, these leaves turn a bright yellow.

One of the most interesting parts of the tree is its fruit. The fruit is a multiple-accessory fruit, which is a type of syncarp. This means it is made of many small drupes that have grown together. The fruit is roughly spherical and bumpy, resembling a large, immature orange. It is about the diameter of a softball and turns yellow-green in the fall. If the fruit is cut or damaged, it excretes a sticky white latex. This milky liquid is part of the fruit's chemical makeup.

Scientists have debated how the Osage orange spreads its seeds. In 1982, ecologists Daniel H. Janzen and Paul S. Martin proposed a theory. They suggested the fruit might be an evolutionary anachronism. This means the fruit may have coevolved with large animals that are now extinct. They thought animals like mammoths, mastodons, or ground sloths once ate the fruit. These animals would then spread the seeds across the land. This idea remains controversial because there is no direct empirical evidence.

History shows that the tree has been useful to many people. Early French settlers called it bois d'arc, which means "bow-wood." This name came from observing Native Americans using the wood for bows and war clubs. The Osage Nation also highly esteemed the wood for bow-making. The Comanche people used the wood for bows as well. They liked it because it was strong, flexible, and durable. The wood is heavy and hard, with a specific gravity of 0.7736.

American settlers also used the tree for practical purposes. They planted the trees as hedges to protect gardens and corn fields. By pruning the trees severely, they encouraged many adventitious shoots to grow from the base. These shoots became interwoven to form a dense, thorny barrier. These hedges were "horse-high, bull-strong, and pig-tight." This method of fencing was used until barbed wire was invented in 1874. The wood remains a great source for fence posts today.

The Osage orange also plays a role in larger environmental systems. In 1934, it was part of the Great Plains Shelterbelt project. This was an ambitious plan by the WPA to prevent soil erosion. By 1942, the project included 220 million trees in 30,233 shelterbelts. These trees help modify weather and protect the soil in prairie states. The tree is remarkably resistant to many insect predators and fungal diseases. It continues to be a significant part of the landscape in the United States and Canada.