# Birch: Species, Identification, Distribution in the Czech Republic and Cultivation

*Betula*

> Source: https://www.stromyvcr.cz/en/birch-betula/ · Author: Tomáš Rohlena · Updated: 2026-10-30

Birch (Betula) is a light-loving pioneer tree of the birch family, easily recognised by its white bark. Silver birch is the most common species in the Czech Republic, while rare species survive in peat bogs.

**Birch (Betula)** is a genus of deciduous broadleaf trees and shrubs in the birch family (Betulaceae), found across the temperate and cold zones of the Northern Hemisphere. It is one of the hardiest and fastest-spreading trees in Central Europe: as a **pioneer species**, it is the first to colonise clearings, abandoned fields, mining spoil heaps and peat bogs, preparing the ground for other trees. Most people in the Czech Republic can recognise it instantly by its white bark peeling off in horizontal strips.

## At a glance

| Scientific name | Betula L. |
| --- | --- |
| Family | birch family (Betulaceae), order Fagales |
| Number of species | roughly 40–60 species (depending on taxonomic approach), 5 native to the Czech Republic |
| Height | silver birch usually 15–25 m, exceptionally around 30 m; dwarf birch only 0.3–1 m |
| Lifespan | usually 80–120 years, occasionally over 150 years |
| Leaves | alternate, diamond-shaped to triangular or ovate, double-toothed, golden yellow in autumn |
| Flowering | April to May, monoecious, wind-pollinated |
| Fruit | tiny two-winged nutlet (2–3 mm) in catkins that break apart |
| Distribution in the Czech Republic | from lowlands to mountains; woodland, clearings, heathland, peat bogs, spoil heaps |
| Protection | silver and downy birch unprotected; dwarf birch and shrub birch are specially protected |

## How to identify birch

You can recognise birch at any time of year, ideally by combining several features.

- **Bark:** young saplings and shoots have reddish-brown to brown bark. It gradually turns into the characteristic **white bark** (periderm), which peels off in thin horizontal strips. The white colour comes from a compound called **betulin**, which reflects sunlight and protects the trunk from overheating and frost cracks. Older trees develop dark, deeply fissured **rough bark** at the base of the trunk.
- **Leaves:** alternate, on long stalks, with double-toothed margins. In silver birch they are diamond-shaped to triangular with an elongated tip; in downy birch they are more ovate with a rounded base.
- **Flowers:** birch is monoecious. Male catkins form as early as autumn and lengthen to 5–10 cm in spring; female catkins are shorter, upright and green.
- **Fruit:** tiny nutlets with two papery wings, about 2–3 mm long. They are so light that the wind carries them hundreds of metres. The cylindrical fruiting catkins disintegrate in late summer and autumn.
- **Habit:** a sparse, airy crown; silver birch has typically drooping twigs.

## Birch species growing in the Czech Republic

Five native taxa grow in the Czech Republic. Older literature sometimes lists them under other names – silver birch, for instance, as *Betula verrucosa*, which is now an invalid synonym.

### Silver birch (Betula pendula)

The most widespread birch in the country, also known in Czech as the **warty birch**. It grows from lowlands to mountain elevations on dry and moist soils that are often acidic and nutrient-poor. Young twigs are hairless and covered in tiny resinous **warts**; older branches droop. The leaves are hairless and diamond-shaped to triangular.

### Downy birch (Betula pubescens)

Prefers moist to waterlogged sites: wet woodland, the edges of peat bogs and mountain areas. Young twigs and leaves are **hairy (downy)** and lack warts; the crown does not droop and the bark tends to be a less pure white. It can hybridise with silver birch.

### Carpathian birch (Betula carpatica)

A mountain birch closely related to downy birch, which many authors treat merely as its subspecies (*B. pubescens* subsp. *carpatica*). It grows in the Krkonoše (Giant Mountains), the Jeseníky and other ranges, often in glacial cirques and on scree.

### Dwarf birch (Betula nana)

A low shrub with small round leaves, a glacial relict from the Ice Age. In the Czech Republic it survives only in a handful of **peat bogs**, for example in the Šumava (Bohemian Forest), the Krušné hory (Ore Mountains) and the Slavkovský les. It is a specially protected species.

### Shrub birch (Betula humilis)

A shrub 0.5–2 m tall, also a glacial relict. In the Czech Republic it is known from practically a single site in the Slavkovský les, making it one of the rarest woody plants in the Czech flora; it is strictly protected.

| Feature | Silver birch | Downy birch |
| --- | --- | --- |
| Young twigs | hairless, with warts | hairy, without warts |
| Leaf shape | diamond-shaped to triangular, elongated tip | ovate, rounded base |
| Crown | drooping branches | ascending branches |
| Habitat | dry to moist, adaptable | moist to waterlogged, peat bogs |

## Where it grows and its ecological role

The genus comprises roughly 40 to 60 species (older figures of 120 species included many synonyms and hybrids). Its range stretches from Europe through Siberia and China to North America; dwarf birches reach furthest north, into the Arctic tundra.

Birch is strongly **light-demanding** and quickly retreats in the shade of other trees. Thanks to its huge output of light seeds, however, it colonises any open ground within a few years. That is why it appears on bark-beetle clearings left after [spruce](https://www.stromyvcr.cz/en/spruce-picea/), on the spoil heaps of North Bohemia's brown-coal mines and in abandoned gardens. Together with [pine](https://www.stromyvcr.cz/en/pine-pinus/), [rowan](https://www.stromyvcr.cz/jerab/) and aspen from the [poplar](https://www.stromyvcr.cz/topol/) genus, it forms typical pioneer communities, under whose cover beech, oak or fir later take over.

Birch sheds abundant leaf litter that decomposes quickly and improves the soil. It lives in **mycorrhiza** with many fungi, typically brown birch bolete, fly agaric and birch bolete species. Dying trunks host the **birch polypore** and the **tinder fungus**. Seeds and buds feed siskins, tits and black grouse, and hundreds of insect species develop on its leaves.

## Wood and uses

### Wood

Birch wood is pale, yellowish-white, with an indistinct heartwood. It is moderately heavy (density around 650 kg/m³), **strong, tough and easy to work**, but **not very durable** outdoors and prone to rot. It is used for:

- **plywood** and veneers (Nordic birch plywood is renowned),
- furniture, turned items, toys and tool handles,
- pulp and paper,
- firewood, which burns well even with the bark on and has a high calorific value.

### Bark

The white bark contains oils and betulin, so it burns even when damp and is a popular **firelighter** when making a campfire. For this purpose, collect only loose hanging bark or bark from felled trees – never strip it from a living tree. Dry distillation of the bark yields **birch tar**, the oldest known adhesive: Neanderthals already used it to fix stone points. Nordic and Siberian peoples made containers, footwear and roofing from birch bark.

### Sap, leaves and other uses

- **Birch sap** is tapped in early spring (usually March to April) before the leaves open. It is drunk fresh or fermented and used in cosmetics, for example in hair tonics. In the wild, tapping without the forest owner's consent is prohibited, and careless tapping damages the tree.
- **Dried leaves** are used in diuretic teas, traditionally for urinary tract complaints.
- The sweetener **xylitol** was originally made from the wood, hence the popular name "birch sugar".
- Pliable twigs were used to make brooms and besoms.

## Growing birch in the garden

Birch is undemanding, fast-growing and its light crown casts little shade. In small gardens, however, its size and shallow roots are worth considering.

### Site and soil

- **Light:** full sun; tolerates partial shade only to a limited extent.
- **Soil:** free-draining, acidic to neutral; copes with poor and sandy soils. Downy birch suits damp spots and pond edges.
- **Moisture:** the roots are shallow and spreading, so the tree suffers in dry years; water young plantings regularly.

### Planting and care

Plant in spring or autumn, ideally young trees, which establish better than large ones. **Prune** in summer or early autumn: pruned in spring, birch "bleeds" sap heavily. Bear in mind that its shallow roots compete with lawns and borders and can lift paving near buildings.

### Ornamental species and cultivars

- *Betula pendula* 'Youngii' – a small tree with weeping branches, suitable even for smaller gardens,
- *Betula pendula* 'Dalecarlica' – deeply cut leaves,
- *Betula pendula* 'Purpurea' – purple foliage,
- *Betula utilis* var. *jacquemontii* – Himalayan birch with exceptionally brilliant white bark,
- *Betula nigra* – river birch from North America with brownish, shaggy peeling bark, tolerant of both wet conditions and heat.

### Pests and diseases

Older or weakened trees are attacked by the **birch polypore** and other wood-decay fungi; leaves may show **rust** and **leaf spot**, and aphids are common. Drought-stressed birches are attacked by jewel beetles. The best prevention is a suitable site and sufficient moisture.

### Allergies

Birch pollen is one of the **most significant allergens** in Central Europe. The tree flowers in April and releases vast quantities of pollen. Allergy sufferers should avoid planting it near windows and patios.

## Fun facts and cultural significance

- Among the Slavs, birch symbolised spring, purity and femininity. It is still traditionally used for the **maypole** and as decoration at Whitsun.
- Birch is the national tree of Russia and Finland; bundles of birch twigs (*vihta*) are used in the sauna.
- Hundreds of texts written on **birch bark** have survived from medieval Novgorod.
- A single mature tree can produce tens of millions of seeds a year.
- The white bark helps the tree survive extreme frosts, enabling birch to cope even with the harsh conditions of the northern tree line.

## Summary

Birch is an unsung hero of the Czech landscape: it is the first to cover bare ground, improves the soil, feeds fungi, insects and birds, and gives people wood, sap, bark and medicinal leaves. You will most often encounter silver birch, with downy birch in damp places, while dwarf birch and shrub birch are rare, protected witnesses of the Ice Age. Find more native trees in our overview of [broadleaf trees](https://www.stromyvcr.cz/en/broadleaf-trees/).

## FAQ

**How can I tell silver birch from downy birch?**

Silver birch has hairless twigs with tiny warts, drooping branches and diamond-shaped to triangular leaves. Downy birch has hairy twigs without warts and more ovate leaves with a rounded base.

**How many birch species grow in the Czech Republic?**

Five native taxa grow here: silver birch, downy birch, Carpathian birch, dwarf birch and shrub birch. Carpathian birch is often treated merely as a subspecies of downy birch.

**Why does birch have white bark?**

The white colour comes from a compound called betulin. The bark reflects sunlight and protects the trunk from overheating and from frost cracks in winter.

**When is birch sap tapped?**

Sap is tapped in early spring, usually in March and April, before the leaves open. In forests this is only allowed with the owner's consent, and the tree should not be needlessly damaged.

**When is the best time to prune birch?**

Prune birch in summer or early autumn. In spring, sap flows heavily from the wounds and needlessly weakens the tree.

**How long do birch trees live?**

Silver birch usually lives 80 to 120 years, exceptionally over 150 years. Compared with oak or lime, it is a short-lived tree.