Prunus avium

The sweet cherry is a tall tree.

In spring, it grows white flowers.

Bees visit these flowers to help them grow.

Soon, the tree grows red fruit.

Birds and small animals love to eat them. This helps spread the seeds to new places.

Inside each fruit is one hard stone. The stone holds a small seed.

People have eaten these cherries for a long time. They are very tasty!

The sweet cherry tree is a tall plant.

It belongs to the rose family. This tree is native to Europe and parts of Asia.

In early spring, the tree grows white flowers.

These flowers grow in small groups. Bees visit the flowers to help them make seeds.

By midsummer, the tree grows fruit. The fruit can be bright red or dark purple.

Each fruit has a hard shell called a stone. Inside the stone is a small seed. Birds and mammals eat the fruit. They drop the seeds in new places. This helps more cherry trees grow.

People have eaten these cherries for thousands of years. Archaeologists found cherry stones from the Bronze Age.

The wood from this tree is very hard. People use it to make fine cabinets and musical instruments. Some people even use the wood to smoke meat. It gives the food a nice flavor. Most parts of the tree are toxic, which means they can make you sick. Only the ripe fruit is safe to eat.

The sweet cherry tree, known as Prunus avium, is a very important plant. It belongs to the rose family. This tree is native to western Eurasia and parts of North Africa.

People often grow it as a beautiful flowering tree in parks. It is also the ancestor of the sour cherry. While the ripe fruit is tasty, most other parts of the plant are slightly toxic. This is because they contain cyanogenic glycosides, which are natural substances that can make you sick.

This tree follows a beautiful cycle every year. In early spring, it grows small white flowers in groups called corymbs.

Bees visit these flowers to help with pollination. Inside each flower, an ovary holds two ovules, but only one becomes a seed. By midsummer, the tree produces fruit called drupes. These fruits range from bright red to dark purple. Each fruit has a single hard stone inside. This stone protects a small seed or kernel. The fruit is mostly water, containing about 81.8% water.

Scientists have studied this tree for a long time. Carl Linnaeus was a famous scientist who described it. In 1753, he first called it a variety of sour cherry. However, he changed it to its own species, Prunus avium, in 1755.

The name itself means "bird cherry" in Latin. Historically, people also called the tree gean or mazzard. These names are not used very often in modern English anymore.

There are many interesting facts about where this tree lives and grows. It grows from the British Isles all the way to the Caucasus and northern Iran.

It has even moved to new places like North America and Australia. The tree has a set of sixteen chromosomes. The wood is a hard, reddish-brown material. People use this cherry wood to make fine cabinets and musical instruments. It is also used to smoke meats to give them a special flavor.

Humans and animals have shared this tree for ages. Birds and mammals eat the fruit and spread the seeds through their droppings.

People have eaten these cherries for thousands of years. Archaeologists found cherry stones in Bronze Age sites in Europe. One site near Lake Garda in Italy dates back to 2077 BCE. Long ago, a leader named Lucullus may have brought specific cherries to Italy. This shows how much people have valued this fruit throughout history.

The sweet cherry tree, scientifically known as *Prunus avium*, is a significant flowering plant in the Rosaceae family. It is a deciduous tree, meaning it loses its leaves every year. This species is native to western Eurasia and parts of North Africa, ranging from the British Isles to the Caucasus.

While it is often grown for its beautiful flowers, it is also a vital food source. It serves as a primary ancestor to the sour cherry, *Prunus cerasus*. It is important to note that while the ripe fruit is edible, most other parts of the plant are slightly toxic. This toxicity comes from cyanogenic glycosides, which are natural chemical compounds found in the leaves, stems, and bark.

The life cycle of *Prunus avium* begins in early spring. During this time, the tree produces white flowers in clusters called corymbs.

These flowers are hermaphroditic, meaning they possess both male and female reproductive parts. Bees visit the flowers to perform pollination, which is the transfer of pollen needed for reproduction. Inside the flower, there is a structure called a superior ovary. This ovary contains two ovules, but only one of these will successfully develop into a seed. By midsummer, the tree produces fruit known as drupes. These fruits are bright red or dark purple and contain a single hard-shelled stone. Inside that stone is the seed, or kernel, which is about 6 to 8 mm long.

*Prunus avium* displays several distinct physical stages as it matures. Young trees show strong apical dominance, which results in a straight trunk and a symmetrical, cone-shaped crown. As the tree ages, the crown becomes more rounded or irregular. The bark also changes significantly over time. On young trees, the bark is smooth and reddish-brown with small horizontal marks called lenticels. On older trees, the bark becomes thick, dark, and fissured with deep cracks. The leaves are also unique, often featuring small red glands called extrafloral nectaries on the stems or leaf edges.

The history of how we classify this tree is quite complex. In 1753, the famous scientist Carl Linnaeus first described it in *Species Plantarum*. At that time, he treated it only as a variety of sour cherry. However, by 1755, he updated his classification in *Flora Suecica* to recognize it as a distinct species.

Historically, the tree was known by names like "gean" or "mazzard." In Latin, the name *Prunus avium* translates to "bird cherry," though in English, that term is often used for a different species, *Prunus padus*.

Humans have interacted with this species for thousands of years. Archaeological evidence shows that cherry stones were part of Bronze Age diets across Europe. For example, fossils were found at a site near Lake Garda, Italy, dating to approximately 2077 BCE.

Ancient records from the Roman writer Pliny suggest that cherry trees were not in Italy until the Roman consul Lucullus brought them from Pontus in 74 BCE. While modern archaeology suggests wild cherries were already in Europe, Lucullus likely introduced specific cultivated varieties. Today, the fruit is highly valued; the flesh is about 81.8% water and contains 45.1% carbohydrates.

Beyond food, the tree has many practical uses. The hard, reddish-brown cherry wood is a prized hardwood. It is frequently used for making musical instruments, cabinets, and for woodturning. In North America, this wood is also used to smoke meats because it provides a pleasant flavor. The tree even has medicinal history, as the stalks of the fruit can be used to make medicines that act as diuretics or cough suppressants. Additionally, the aromatic gum that leaks from wounds in the bark can be chewed like gum.

*Prunus avium* also plays a vital role in local ecosystems. The fruit is a major food source for many birds and mammals. When these animals eat the fruit, they disperse the seeds through their droppings, helping the trees spread to new areas. Some animals, like the hawfinch or certain rodents, even crack the hard stones to eat the nutritious kernel inside. The tree also provides food for insects, such as the case-bearer moth. Because of its beauty and ecological value, many countries have programs to conserve the genetics of this important wild species.