Vaccinium myrtillus

This small bush has many names. Some call it a bilberry. Others call it a whortleberry.

It grows green leaves. In the fall, the leaves turn red. The bush can live for 30 years.

Small flowers grow from the bush. They bloom in the spring. The flowers look like little cups.

In the summer, the bush grows blue fruit. The fruit is round and flat. You can eat the berries.

The blue juice can stain your hands. It can also stain your teeth. People use the juice as a dye.

The bilberry is a small bush. It has many names. Some people call it a blaeberry. Others call it a whortleberry.

This bush grows in many places. You can find it in Europe and Asia. It also grows in parts of North America. It likes soil that is acidic. This means the soil has a certain type of chemistry.

The bush has green leaves. These leaves turn red in the fall. In the spring, small flowers bloom. The flowers look like tiny white or pink cups. These flowers grow from the leaf parts.

From July to September, the bush makes fruit. The berries are blue-gray. They are round and flat. They have a dark red inside. This color comes from anthocyanins. These are natural parts that make things colorful.

You can eat these berries. They make a dark juice. This juice can stain your hands and teeth. People once used the juice as a dye. You can use them in pies or jams. Be careful with the leaves. They may not be safe to eat.

The bilberry is a small, leafy shrub that people love to find in the wild. It is known by many different names depending on where you live. Some people call it a blaeberry in Scotland or a whortleberry. In Canada, you might hear it called a myrtille.

This plant is very important because it grows delicious, blue fruit. These berries are a special treat in many parts of the world. They grow in large patches across much of the northern hemisphere.

Watching a bilberry grow is like seeing a slow, beautiful change. In the spring, between April and May, tiny flowers bloom. These flowers look like small, white or pink cups that hang downward. After the flowers fade, the plant begins to grow its fruit. From July to September, the berries appear. They are round and flat with a blue-gray color. These berries contain anthocyanins, which are natural parts that create their deep color. Unlike some other berries, the bilberry's color is found in both its skin and its flesh.

Scientists and historians have many ideas about where its name comes from. The name "Vaccinium" might come from a Latin word for cow. Some think it refers to cows eating the bushes. Other theories say it comes from a word for berry or from the genus Hyacinthus. The species name, "myrtillus," describes how its leaves look like a plant called myrtle.

These names help us keep track of this specific plant.

Bilberries are very hardy and can live for up to 30 years. They grow in many places like Europe, Asia, and North America. You can find them in acidic soils in places like moors or open forests. The berries are mostly made of water, about 85.4 percent. Each fruit usually has about 25.3 seeds inside.

The plants can grow in many different types of land, from mountains to meadows.

People have used the bilberry for a very long time. The dark red juice from the berries can stain your hands and teeth. Because of this, people in Britain used to use the juice as a dye for clothes. Today, many people use the berries to make yummy foods. You can find them in pies, jams, muffins, and even candies.

While the fruit is tasty, you should remember that the leaves may not be safe to eat.

The bilberry, scientifically known as *Vaccinium myrtillus*, is a small deciduous shrub. It is a Holarctic species, meaning it is found throughout the northern regions of the world. This plant is famous for its edible, blue-colored fruit. It is often called the common bilberry or blue whortleberry to distinguish it from its relatives.

These shrubs are important because they grow in large, extensive patches. They use rhizomes, which are underground stems, to spread across the land. This allows them to form dense groups in their natural habitats.

The growth cycle of the bilberry follows a specific seasonal pattern. Between April and May, the plant produces small, hermaphrodite flowers. These flowers grow individually from the leaf axils, which are the points where leaves meet the stem. The flowers nod downward and have white-to-pink, urn-shaped petals. They possess eight to ten short stamens with horned anthers.

After flowering, the plant develops fruit from July to September. These berries are black-blue, flattened, and round. They have a blue-gray frosted appearance due to their outer surface. Each berry can reach a diameter of up to 1 cm.

There are several distinct physical characteristics that define this species. The branches are green, upright, and heavily branched. They have an angular or narrow winged shape and are glabrous, which means they are smooth and hairless. The leaves are light green and arranged in an alternate pattern. In the autumn, these leaves turn a deep red color before falling off. The leaves are shaped like ovals or long points, known as ovate or lanceolate. They also have prominent veins on their lower surfaces.

History and naming provide many interesting theories about this plant. The genus name *Vaccinium* may come from the Latin word for cow. This suggests the plant might have been named because cows eat the bushes. Another theory is that the name comes from a word for berry. A third idea links the name to the genus *Hyacinthus*. The species name, *myrtillus*, refers to how the leaves look like common myrtle.

Different regions use many different names for it. In Scotland, it is called a blaeberry. In Canada, people prefer the names myrtille or myrtle whortleberry.

Scientific data reveals much about the composition of the bilberry fruit. The berries are mostly water, averaging 85.4% of their weight. The dry weight of the fruit contains 31.1% carbohydrates and 2.7% lipids, which are fats. On average, a single fruit contains 25.3 seeds. These seeds are small, brown, and shaped like crescents.

The fruit typically persists on the plant for an average of 16.7 days. This rapid cycle is part of its natural life process.

The chemistry of the plant is quite complex. The fruit contains anthocyanins, which are pigments that create color. In *Vaccinium myrtillus*, these pigments are found in both the peel and the flesh. This is a key difference from the related *V. corymbosum*. The fruit also contains pectin, ursolic acid, chlorogenic acid, and ascorbic acid.

The leaves contain other substances like tannins, catechins, and arbutin. Interestingly, the plant also produces lignins as defensive chemicals. While many plants change lignin levels due to climate change, the levels in this species appear unaffected.

Bilberries have many uses and connections to human culture. For centuries, they have been used in traditional medicine. In Austria, they have been used as a tea or liqueur. In the United States, people sell bilberry dietary supplements.

The dark red juice from the fruit can stain hands, teeth, and tongues. Because of this, people in Britain traditionally used the juice as a dye for food and clothes. Today, the berries are used in many foods like pies, jams, and muffins. They are harvested in the wild in Northern Europe rather than being grown on farms.