Adansonia digitata

The baobab is a very large tree.

It lives in hot and dry lands. These trees can live for a long time. Some have lived for over a thousand years!

Rain can be hard to find in these lands. The tree catches rain in its wide trunk. This helps the tree stay full of water.

In the dry time, the tree loses its leaves. This helps it keep its water inside. The tree can stay without leaves for eight months.

Many animals eat the fruit of the tree.

The fruit has a hard shell. It is a very special tree.

The African baobab is a very special tree.

It lives in hot, dry lands. These trees can live for a very long time. One tree in Zimbabwe lived for about 2,450 years!

Baobabs have very wide trunks. They use these trunks to store water. A large tree can hold 136,400 liters of water. This helps them survive when there is no rain. The tree has special cells called parenchyma. These cells act like tiny storage tanks for water.

In the dry season, the tree loses its leaves. It stays without leaves for eight months. This helps the tree save its water. The tree also has thick bark. This bark can heal even if it is hurt.

The fruit has a hard shell. Inside, there is a soft pulp. This pulp can turn into a dry powder. Many animals eat this fruit. People also use it for food and medicine. Some people call it the monkey-bread tree.

The African baobab is a very special tree.

It is the most common type of baobab tree. You can find them in the hot, dry savannas of Africa. They also grow in the southern Arabian Peninsula. These trees are famous for living a very long time. One tree in Zimbabwe was about 2,450 years old when it died. Another tree in Namibia was about 2,000 years old. These giants are important to the land and many animals.

These trees have a clever way to stay alive during droughts. They use their huge trunks to store water. A single large tree can hold 136,400 liters of water!

The water moves into soft plant cells called parenchyma. These cells act like tiny storage tanks inside the trunk. When it rains, the U-shaped branches help water trickle down. This allows the tree to soak up as much as possible. During the dry season, the tree drops all its leaves. This helps the tree stop losing water through its leaves.

People have studied these trees for a very long time. An Arab traveler named Ibn Batuta wrote about them in the 14th century. Later, a French scientist named Michel Adanson saw a tree in Senegal in 1749. He wrote the first detailed description of the whole tree. Because of his work, the genus was named Adansonia. This name honors him. The species name, digitata, comes from the leaves. The leaves have five to seven leaflets that look like fingers on a hand.

Baobabs have many different names. Some people call them the monkey-bread tree. This is because the fruit has a soft, edible part. Others call it the upside-down tree. This is because the branches look like roots reaching into the sky. You might also hear it called the cream of tartar tree. This name comes from the dry, powdery pulp inside the fruit.

The fruit has a very thick, woody shell to protect it.

These trees are part of a huge family of living things. The flowers are large, white, and very beautiful. They usually open in the late afternoon. They only stay open for one single night!

After one day, the flowers turn brown and smell like something dead. This might help certain animals find them. The seeds are very tough and hard. They often need to pass through an animal or face a fire to grow. This helps the seeds start their life in the right way.

The African baobab, known scientifically as *Adansonia digitata*, is a massive and highly distinctive tree species.

It is the most widespread member of the *Adansonia* genus. These trees are native to the African continent and the southern Arabian Peninsula, including Yemen and Oman. They are often found in hot, dry savannas and scrublands. In these environments, they dominate the landscape. They are also known by several common names. Some call them the monkey-bread tree because of their edible fruit. Others call them the upside-down tree because their branches look like roots. They are also known as the cream of tartar tree due to the powdery fruit pulp.

One of the most remarkable features of the baobab is its ability to store water.

Because they live in areas with long droughts, they must manage water carefully. The trees have U-shaped branches that help rainwater trickle down the trunk. This allows for maximum absorption over a long period. The water moves from the vascular tissue into specialized cells called parenchyma. These parenchyma cells act as long-term storage tanks within the trunk and branches. A single large baobab can store as much as 136,400 liters of water. This storage allows the tree to survive when water is otherwise inaccessible.

To prevent dehydration, the baobab uses a specific survival strategy during the dry season. All baobabs are deciduous, meaning they lose their leaves annually. They remain leafless for about eight months of the year. This process prevents water loss through transpiration. Transpiration is the process where water escapes through tiny holes in the leaves called stomata. If the tree kept its leaves, the water potential in its vascular tissue would drop too low. This would pull water out of the parenchyma cells, causing them to plasmolyse. This cell damage would eventually destroy the tree. During the dry season, the trunk's circumference may shrink by 2 to 3 cm. This reflects a drop in water content of about 10%.

The physical structure of the tree is also unique. The trunk is often very broad, cylindrical, or fluted. It may even have a spreading, buttressed base. Many large trees have a hollow core. This core is often formed by three to eight stems that have fused together as they grew from the roots. The bark is thick, grey, and usually smooth. In mature trees, the bark can be up to 8 cm deep. This thickness is due to the secondary phloem, which makes up 75% of the bark's volume. This thick bark is fibrous and helps the tree heal from severe damage. It also provides structural strength to support the massive weight of the tree.

Baobab flowers are large, white, and hang from long stalks. They are quite showy and often appear in pairs. These flowers have a very short life cycle. They typically open in the late afternoon and remain fertile for only one night. Initially, the fresh flowers have a sweet scent. However, after about 24 hours, they turn brown and emit a carrion smell. The flowers contain a large number of stamens, often between 720 and 1,600 per flower. The seeds are protected by a hard, kidney-shaped coat. These seeds often require fire or passage through an animal's digestive tract to germinate. This helps crack the seed coat so water can penetrate.

The fruit of the *Adansonia digitata* is also highly variable. It can be nearly round or cylindrical, and it features a thick, woody outer shell. Inside, there is a fleshy, light beige pulp. As this pulp dries, it turns into a useful, crumbly powder. These fruits are a key food source for many different animals. The trees are also deeply tied to human history and culture. They have been used for food, water, medicine, and shelter. The earliest written reports of the tree come from the 14th-century travelogue of the Arab traveler Ibn Batuta.

Scientific study of the baobab has a long history. The genus name *Adansonia* honors the French botanist Michel Adanson. He provided the first detailed botanical description of the full tree in 1749. The species name, *digitata*, refers to the leaves. The leaves are palmately compound, meaning they have leaflets that spread out like fingers on a hand. Most mature trees have five to seven leaflets, though some have up to nine. These trees are incredibly long-lived.

Radiocarbon dating has revealed their massive age. The Panke baobab in Zimbabwe was approximately 2,450 years old when it died in 2011. This makes it the oldest documented angiosperm, or flowering plant, in history.