Ten Wood

Site of Special Scientific Interest · 52.1758, 0.4322

Also within

Cambridgeshire County

Condition (Natural England)

Favourable (1)
UnitFeatureConditionArea (ha)Assessed
TL664558 Favourable 17.71 2009-04-02

Geology & landscape

Rock Type: Glacial Till

Landscape processes: Glacial

Description

Description This is an ancient woodland of the ash maple type which has a national distribution restricted to lowland England. Since 1945 such woodland examples have declined in extent, particularly in the more intensively farmed regions and the fraction which remain are therefore of high conservation value. In a Cambridgeshire context, Ten Wood is additionally noted for the influence on its vegetation of underlying acid sand and gravels in an otherwise extended area of Chalky Boulder Clay. It is also one of the few woods where hornbeam Carpinus betulus is represented, here being at the northern edge of its range in Britain. The wood also supports an oxlip Primula elatior population; a plant which is confined to a small number of woods in eastern England. The dominant tree species of the wood are ash Fraxinus excelsior, field maple Acer campestre, hazel Corylus avellana and pedunculate oak Quercus robur. The ash, maple and hazel occur largely as coppice and the oak and some ash as standards. This structure results from a ‘coppice with standards’ management, the traditional management dating back to the Middle Ages. Other tree species include aspen Populus tremula and sallow Salix caprea. The rich ground flora includes bluebell Hyacinthoides non-scripta, dog’s mercury Mercurialis perennis, ramsons Allium ursinum, wood sorrel Oxalis acetosella and water avens Geum rivale. The wood is also noted as providing the only record of the wood rush Luzula sylvatica within the old county of Cambridgeshire. The rides, supporting a grassland flora, add further diversity to the site. Parts of the wood have suffered in the past from attempts at coniferisation. This has largely failed and management now is towards the more compatible coppice structure. These areas are therefore retained within the boundary of the designated site.

Species mentioned

English name
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Latin name
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IUCN / Red List Type Family
ramson Allium ursinum LC herb liliaceae
water avens Geum rivale LC herb rosaceae
bluebell Hyacinthoides non-scripta LC herb liliaceae
dog's mercury Mercurialis perennis LC herb euphorbiaceae
wood sorrel Oxalis acetosella LC herb oxalidaceae
oxlip Primula elatior LC herb primulaceae
great wood rush Luzula sylvatica LC rush juncaceae
field maple Acer campestre LC tree aceraceae
hornbeam Carpinus betulus LC tree betulaceae
hazel Corylus avellana LC tree corylaceae
ash Fraxinus excelsior LC tree oleaceae
aspen Populus tremula LC tree salicaceae
common oak Quercus robur LC tree fagaceae
goat willow Salix caprea LC tree shrub salicaceae

Insects to look out for

These moths, butterflies and beetles are known to feed on plants recorded at this site, and carry a notable UK conservation status — but a host-plant being present doesn't mean the insect has actually been recorded here. Treat this as "worth watching for," not a confirmed sighting.

SpeciesStatusVia host-plant
Oak lutestring
Cymatophorina diluta
Endangered Quercus robur
Dark bordered beauty
Epione vespertaria
Endangered Populus tremula
Maple pug
Eupithecia inturbata
Endangered Acer campestre
The lappet
Gastropacha quercifolia
Endangered Salix spp.
Scarce vapourer
Orgyia recens
Endangered Corylus avellana, Quercus spp., Salix spp.
Mouse moth
Amphipyra tragopoginis
Vulnerable Salix caprea
The sprawler
Asteroscopus sphinx
Vulnerable Corylus avellana, Fraxinus excelsior, Populus spp., Quercus spp., Salix spp.
Scarce chocolate-tip
Clostera anachoreta
Vulnerable Populus spp., Populus tremula, Salix spp.
Mottled umber
Erannis defoliaria
Vulnerable Acer campestre, Carpinus betulus, Corylus avellana, Populus tremula, Quercus spp., Salix spp.
Satyr pug
Eupithecia satyrata
Vulnerable Salix spp.
The lackey
Malacosoma neustria
Vulnerable Corylus avellana, Quercus spp., Salix spp.
Pale brindled
Phigalia pilosaria
Vulnerable Corylus avellana, Fraxinus excelsior, Populus spp., Quercus spp., Salix caprea
Early moth
Theria primaria
Vulnerable Quercus spp.
Pale eggar
Trichiura crataegi
Vulnerable Corylus avellana, Populus spp., Quercus spp., Salix spp.
Oak hook-tip
Watsonalla binaria
Vulnerable Quercus robur
No common name
Zeugophora turneri
Vulnerable Populus tremula
Flounced chestnut
Agrochola helvola
Near Threatened Quercus spp., Salix spp.
Beaded chestnut
Agrochola lychnidis
Near Threatened Salix spp.
Grey chi
Antitype chi
Near Threatened Salix caprea
Purple emperor
Apatura iris
Near Threatened Populus tremula, Salix caprea
Minor shoulder-knot
Brachylomia viminalis
Near Threatened Populus tremula, Salix caprea
Light crimson underwing
Catocala promissa
Near Threatened Quercus robur
Dark crimson underwing
Catocala sponsa
Near Threatened Quercus robur
The sallow
Cirrhia icteritia
Near Threatened Populus spp., Salix spp.
Dingy mocha
Cyclophora pendularia
Near Threatened Salix caprea
Heart moth
Dicycla oo
Near Threatened Quercus robur
Large thorn
Ennomos autumnaria
Near Threatened Corylus avellana, Populus spp., Quercus spp., Salix spp.
September thorn
Ennomos erosaria
Near Threatened Quercus spp.
Dusky thorn
Ennomos fuscantaria
Near Threatened Fraxinus excelsior
Autumnal rustic
Eugnorisma glareosa
Near Threatened Hyacinthoides non-scripta
Grey pug
Eupithecia subfuscata
Near Threatened Populus tremula, Salix spp.
Double dart
Graphiphora augur
Near Threatened Quercus spp., Salix spp.
Clay fan-foot
Paracolax tristalis
Near Threatened Quercus spp.
Common fan-foot
Pechipogo strigilata
Near Threatened Quercus robur
Frosted green
Polyploca ridens
Near Threatened Quercus robur

Host-plant data: Cook et al. (2025), Traits data for the butterflies and macro-moths of Great Britain and Ireland, 2024, UK Centre for Ecology & Hydrology / Butterfly Conservation; and Padovani et al. (2020), Database of Insects and their Food Plants (DBIF), UK Centre for Ecology & Hydrology (both Open Government Licence). Contains data supplied by UK Centre for Ecology & Hydrology.