HornbeamDrepanostoma, CC BY 4.0
Hornbeam
Sweet chestnut
Sweet chestnut
Lookalikes

Hornbeam or sweet chestnut?

Both have toothed leaves with parallel veins.

The quickest check

The quickest check is the leaf length. Hornbeam: 7 to 12 cm, big and small teeth. Sweet chestnut: 16 to 25 cm, spine-teeth 1 cm apart. No leaves on the tree? Check the old trunk.

At a glance

Look atHornbeamSweet chestnut
Leaf length7 to 12 cm, big and small teeth16 to 25 cm, spine-teeth 1 cm apart
Old trunkSmooth grey, in ridges and hollowsCrisp ridges spiralling up the trunk

Two ways to tell them apart

Leaf lengthLeaves
Hornbeam: leaf lengthJoss Carr, CC BY 4.0
Hornbeam7 to 12 cm, big and small teeth
Sweet chestnut: leaf length
Sweet chestnut16 to 25 cm, spine-teeth 1 cm apart
Old trunkBark
Hornbeam: old trunkEwan Shilland, CC BY 4.0
HornbeamSmooth grey, in ridges and hollows
Sweet chestnut: old trunkjamie-aa, CC BY 4.0
Sweet chestnutCrisp ridges spiralling up the trunk
Think you can tell them apart now? Try the tree quiz: real photographs, and what gives each tree away.Take the quiz

The two trees

Hornbeam

Carpinus betulus

Hornbeam is a broad, dense tree, often clipped as a hedge. Its smooth grey trunk is ridged like muscle, with wriggling silver or orange marks running up it.

How to identify hornbeam →

Sweet chestnut

Castanea sativa

Sweet chestnut is a big tree with long, glossy leaves. Each leaf is edged with coarse, spiky teeth. On an old trunk the bark ridges twist round, usually clockwise.

How to identify sweet chestnut →

Their other lookalikes

HornbeamCommon beechHornbeam or common beech?Quickest check: the trunk surfaceHornbeamCommon whitebeamHornbeam or common whitebeam?Quickest check: the trunkHornbeamField elmHornbeam or field elm?Quickest check: the leaf surfaceHornbeamHazelHornbeam or hazel?Quickest check: what holds each nutHornbeamWych elmHornbeam or wych elm?Quickest check: the older trunkSweet chestnutCommon beechSweet chestnut or common beech?Quickest check: the huskSweet chestnutHorse chestnutSweet chestnut or horse chestnut?Quickest check: the blades on one stalk
In the app

See them side by side in Treely

  • Both trees, part by partLeaves, bark, buds, flowers and fruit, photographed through the year
  • Every lookalike side by sideThe checks that settle it, for every pair people mix up
  • A short round each dayUntil you can tell them apart at a glance
  • The full GuideBoth trees written up in full, with where to find them
App StoreGoogle Play

Free to download.

Every fact on this page is checked against the Collins Tree Guide, last in November 2026. Spotted something that looks wrong in front of a real tree? Tell us. How we check.

Photographs: Drepanostoma (CC BY 4.0), david_and_moira_sinden (CC0), Joss Carr (CC BY 4.0), steve_mcwilliam (CC0), Ewan Shilland (CC BY 4.0), jamie-aa (CC BY 4.0). With thanks to everyone who shares their photographs on iNaturalist and Wikimedia Commons.