The elm is one of the noblest trees of Czech forests and river floodplains – and also one of the most endangered. The three elm species that grow naturally in the Czech Republic are similar to one another, yet each lives in a slightly different environment and offers wood with slightly different properties. Whether you are fascinated by elm wood as a material, the ecology of these trees or their dramatic battle with Dutch elm disease, you will find the answers here – and thanks to the interactive identification game, you can practise your knowledge straight away.
Elm identification game: test your knowledge
Can you tell a wych elm from a European white elm? Do you know why elm wood is so tough? Start the game, choose a difficulty level and find out how well you know these magnificent trees.
🌳 Looking for a gift made of natural wood? At AMADEA you will find handmade products made of wood from Czech forests – from decorations to kitchenware.
Visit AMADEAA guide to the elm species of the Czech Republic
All three of our elms belong to the elm family (Ulmaceae) and share one striking sign: an asymmetrical leaf base, where one half of the leaf blade starts lower than the other. This feature is a quick key to identifying the genus – even in the field without a magnifying glass.
Wych elm – Ulmus glabra Huds.
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The wych elm is the largest and most massive of the Czech elms. It grows 30–40 metres tall; the trunks of old specimens tend to be deeply furrowed and the crown broadly conical. It thrives best in ravine forests and on mountain slopes – in the Krkonoše, the Šumava or the Jeseníky it can be found even at altitudes above 1,000 m. Its leaves are the largest of all native elms: usually 10–16 cm long, distinctly rough like sandpaper on the upper side, and pointed or three-lobed at the tip. The beautiful wavy figure of elm wood makes it a popular material for kitchenware and decorative objects.
The wych elm flowers very early – as early as February or March, long before the leaves appear. Its fruits (samaras) ripen in June. The tree prefers deep, stony, nutrient-rich soils; it is accompanied by sycamore maple, European beech or common ash.
Field elm – Ulmus minor Mill.
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The field elm is a warmth-loving species of the lowlands and hills. In the Czech Republic it grows mainly in southern Bohemia, South Moravia and the Elbe lowlands. It reaches 25–30 metres in height, and its branches often have corky ridges. Its leaves are smaller (5–10 cm), almost smooth on top and strongly asymmetrical at the base. It was widely planted as an avenue tree along field tracks. Its wood, with its striking figure, is occasionally used for serving boards too.
European white elm – Ulmus laevis Pall.
The European white elm is a characteristic tree of floodplain forests and river valleys. You will find it along the Elbe, the Morava, the Dyje or the Oder. Its Czech name "vaz" refers to its tough bast fibres, which were used for tying. The trunk is often massively broadened at the base and forms characteristic buttress roots. The leaves are smooth (laevis = smooth), and the fruits hang on long stalks in clusters. Of the three species, the white elm is the most resistant to Dutch elm disease. You will also find original wooden bowls with a similarly striking figure at AMADEA.
Elm wood – properties and uses in craft
From a craftsperson's point of view, elm wood is one of the most interesting native woods. Its greatest strength is its exceptional toughness and resistance to splitting, thanks to its interlocked grain. The fibres spiral in alternating directions – the wood is hard to split but bends easily. For centuries it was prized for wagon wheels, boats and furniture with bent parts.
| Property | Wych elm | Field elm | European white elm |
|---|---|---|---|
| Density (kg/m³) | 660–720 | 680–740 | 640–700 |
| Hardness | medium | medium–higher | medium |
| Bendability | very good | good | good |
| Wood figure | striking, wavy | striking | fine, straight |
| Resistance in damp conditions | good | medium | excellent |
| Durability (EN 350 class) | 4 – slightly durable | 4 – slightly durable | 4 (exceptional when permanently under water) |
| Typical uses | furniture, carving | veneers, turning | outdoor elements, piles |
Dutch elm disease – the greatest threat to elms
A fungal disease caused by Ophiostoma ulmi and the more aggressive O. novo-ulmi. It is spread by bark beetles of the genus Scolytus. The fungus blocks the vascular bundles and the tree dries out from the top down. In the 20th century, millions of elms died across Europe. The only effective protection is the prompt removal of infected trees and the breeding of resistant cultivars, with the conservation of elm genetic resources coordinated by the EUFORGEN programme.
The most common mix-ups and similar species
Similarly serrated leaves, but the hornbeam has a symmetrical leaf base. Hornbeam fruits are three-lobed leafy bracts – completely different from elm samaras.
Beech has a symmetrical leaf base, a silky glossy surface and leaves with smooth or shallowly toothed edges – never double-serrated like elm.
The lime's leaves are heart-shaped and smooth, with tufts of hairs in the vein axils underneath, and they are not double-serrated like elm leaves. Its fruits are small round nutlets hanging from a papery wing-like bract.
Frequently asked questions about elms
How many species of elm grow in the Czech Republic?
Three species grow naturally in the Czech Republic: the wych elm (Ulmus glabra), the field elm (Ulmus minor) and the European white elm (Ulmus laevis). Introduced species such as the American or Siberian elm are occasionally grown in parks.
What is Dutch elm disease and how does it spread?
Dutch elm disease is a fungal disease caused by Ophiostoma novo-ulmi (and the older O. ulmi). It is spread by bark beetles of the genus Scolytus, which carry the spores into the tree's vascular system. The tree then stops taking up water and nutrients and dies.
How can you recognise an elm at first glance?
The most reliable feature is the asymmetrical leaf base – one half of the leaf blade starts lower than the other. The leaf edge is always double-serrated. In spring, elms flower before their leaves come out.
Why is elm wood so tough?
Its toughness comes from interlocked grain – the wood fibres spiral in alternating directions, so the wood is hard to split and withstands impacts well. This property made it the material of choice for wagon wheel hubs and ship keels.
Where can I buy original wooden products inspired by Czech nature?
At AMADEA you will find handmade wooden products made from native woods – serving boards, bowls and plates, and original wooden home decorations. Everything is made in the Czech Republic with an emphasis on natural materials.
🌳 Looking for a gift made of natural wood? At AMADEA you will find handmade products made of wood from Czech forests – from decorations to kitchenware.
Visit AMADEAAuthor: Martin Portych – specialist in wooden products, gift advice and shop content
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