
English oak · LeavesRounded lobes, ear-like flaps, a very short stalk.
How to identify English oak →
Ten questions from real photographs. Name the tree, spot its leaf, find the odd one out, match a leaf to its fruit. Every answer tells you what gives it away.

English oak · LeavesRounded lobes, ear-like flaps, a very short stalk.
How to identify English oak →
Horse chestnut · ConkersA conker in a thick spiny husk.
How to identify horse chestnut →Tap the photograph.
Silver birch · BarkWhite, peeling, with black diamonds at the base.
How to identify silver birch →
Hazel · CatkinsYellow catkins on bare stems in February.
How to identify hazel →
Weeping willow · ShapeBroad dome of hanging shoots, wider than tall.
How to identify weeping willow →Tap the photograph.
Holly · LeavesGlossy and hard, spiny low down, smooth higher up.
How to identify holly →
Sycamore · KeysPaired keys, wings set in a V.
How to identify sycamore →
Holly · BerriesRound red berries, on female trees only.
How to identify holly →Tap the photograph.
Horse chestnut · LeavesFive to seven leaflets, fanned like fingers.
How to identify horse chestnut →
English oak · AcornsAcorns on long stalks, often in pairs.
How to identify English oak →
Common ash · Black budsSooty black buds in opposite pairs.
How to identify common ash →
Common beech · LeavesOval, wavy-edged, fringed with fine hairs.
How to identify common beech →Tap the photograph.
Hawthorn · HawsRed haws, one pip in each.
How to identify hawthorn →
Alder · ConesSmall woody cones, on the tree year round.
How to identify alder →
Wild cherry · BlossomIvory white posies over bronze young leaves.
How to identify wild cherry →
Common lime · LeavesHeart-shaped and lopsided, buff tufts underneath.
How to identify common lime →Tap the photograph.
Blackthorn · BlossomOff-white, five petals, out before the leaves.
How to identify blackthorn →
London plane · BarkPatchwork of grey, cream and olive.
How to identify London plane →
This leafTap the photograph.
Common ash · KeysBunches of biscuit brown keys, held all winter. Its leaves: nine to thirteen leaflets, the leaves in opposite pairs.
How to identify common ash →
Sweet chestnut · ChestnutsDense ball of fine spines, usually three nuts.
How to identify sweet chestnut →
Wild service tree · LeavesPointed lobes, the lowest pair standing out sideways.

Douglas fir · ConesHanging cones with three-pointed straps showing.
How to identify Douglas fir →Tap the photograph.
Grand fir · Shoots and needlesFlat needles combed into two rows.
How to identify grand fir →
Wych elm · LeavesRough as sandpaper, with a lopsided base.
How to identify wych elm →Tap the photograph.
Norway maple · LeavesFive lobes, few long teeth, hair-tipped.
How to identify Norway maple →
Japanese larch · ConesSmall round cones, scale tips bent back.
How to identify Japanese larch →
English oak · CatkinsYellow male catkins as leaves unfold.
How to identify English oak →
Field maple · KeysPaired keys with wings set in a line.
How to identify field maple →
This leafTap the photograph.
London plane · Seed ballsBristly balls, about 3 cm, hanging all winter. Its leaves: broad, with three to five pointed lobes.
How to identify London plane →
Corsican pine · BarkGreyish mauve, wide cracks between big scaly plates.
How to identify Corsican pine →Treely teaches you the trees of Britain a few at a time, from real photographs of every part in every season, with a short round each day until you know them on sight.
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Photographs: Leon Cross (CC BY 4.0), steve_mcwilliam (CC0), sim_elliott (CC0), Dave (CC BY 4.0), ramarao (CC BY 4.0), lisemari (CC BY 4.0), Kieran Roy Powell (CC BY 4.0), pete_gateley (CC0), cjoynson (CC0), Henry Miller (CC BY 4.0), David Ashcroft (CC BY 4.0), Shawn O'Donnell (CC BY 4.0), empressmoth (CC0), bobwardell (CC0), anniet39 (CC0), Owen and Carol Fawcett. (CC BY 4.0), Eric Toro Delgado (CC BY 4.0), rockybajada (CC0), David Anderson (CC BY 4.0), jamie-aa (CC BY 4.0), Caroline Kane (CC BY 4.0), Rosy Thomson (CC BY 4.0), Nick Butcher (CC BY 4.0), pilmar (CC0), chrisgannaway (CC0), oliverc29 (CC BY 4.0), Susan Marley (CC BY 4.0), naturalist charlie (CC BY 4.0). With thanks to everyone who shares their photographs on iNaturalist and Wikimedia Commons.