Hanger Wood

Site of Special Scientific Interest · 52.1354, -0.5440

Also within

Bedfordshire County

Condition (Natural England)

Favourable (2)
UnitFeatureConditionArea (ha)Assessed
SP997495 Favourable 21.31 2012-06-26
SP999499 Favourable 2.63 2012-06-26

Geology & landscape

Rock Type: Glacial Till

Landscape processes: Glacial

Description

Area, 24.12 hectares 59.60 ac Description Hanger Wood is located approximately one kilometre east of the village of Stagsden in north west Bedfordshire. Situated on the poorly drained soils of the boulder clay, the wood extends along the gentle north west facing slope of a narrow ridge. It represents a habitat which is very scarce in Bedfordshire, a poorly wooded county and which has generally declined throughout its range in lowland England. Hanger Wood is one of the best remaining examples of wet ash maple woodland in Bedfordshire exhibiting a flora characteristic of the heavy, slightly basic clay soils. The wood is typical of an ancient, semi natural woodland, formerly managed as coppice with standards with a rich variety of shrubs and adiverse ground flora including species uncommon in the county. Mature pedunculate oak Quercus robur and ash Fraxinus excelsior standards dominate the canopy together with overgrown ash coppice and field maple Acer campestre. The diverse shrub layer is dominated by coppiced hazel Corylus avellana in association with hawthorn Crataegus monogyna and midland hawthorn Crataegus laevigata, a species strongly associated with ancient woodland sites. Other species include dogwood Cornus sanguinea, privet Ligustrum vulgare, guelder rose Viburnum opulus and holly Ilex aquifolium. blackthorn Prunus spinosa locally forms dense thickets while wayfaring tree Viburnum lantana and spindle Euonymus europaeus are mainly restricted to the wood margins. Dog’s mercury Mercurialis perennis and bluebell Hyacinthoides non-scripta characteristically dominate the ground flora with bramble Rubus fruticosus locally abundant where conditions are slightly drier. Other species also characteristic of ancient woodlands include wood sedge Carex sylvatica, wood anemone Anemone nemorosa, yellow archangel Lamiastrum galeobdolon, wood melick Melica uniflora, wood millet Milium effusum and herb paris Paris quadrifolia, a species uncommon in the county. Additional habitats are provided by the rides which support marshy grassland communities, often dominated by pendulous sedge Carex pendula with meadowsweet Filipendula ulmaria, valerian Valeriana officinalis, angelica Angelica sylvestris and false fox sedge Carex otrubae.

Species mentioned

English name
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Latin name
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IUCN / Red List Type Family
wood melick Melica uniflora NT grass poaceae
wood millet Milium effusum LC grass poaceae
wood anemone Anemone nemorosa LC herb ranunculaceae
wild angelica Angelica sylvestris LC herb apiaceae
meadow sweet Filipendula ulmaria LC herb rosaceae
bluebell Hyacinthoides non-scripta LC herb liliaceae
yellow archangel Lamiastrum galeobdolon LC herb lamiaceae
dog's mercury Mercurialis perennis LC herb euphorbiaceae
herb paris Paris quadrifolia VU herb melanthiaceae
bramble Rubus fruticosus LC herb rosaceae
common valerian Valeriana officinalis LC herb caprifoliaceae
false fox sedge Carex otrubae LC sedge cyperaceae
pendulous sedge Carex pendula LC sedge cyperaceae
wood sedge Carex sylvatica LC sedge cyperaceae
dogwood Cornus sanguinea LC shrub cornaceae
midland hawthorn Crataegus laevigata LC shrub rosaceae
hawthorn Crataegus monogyna LC shrub rosaceae
spindle tree Euonymus europaeus LC shrub celastraceae
wild privet Ligustrum vulgare LC shrub oleaceae
blackthorn Prunus spinosa LC shrub rosaceae
wayfaring tree Viburnum lantana LC shrub caprifoliaceae
gelder rose Viburnum opulus LC shrub caprifoliaceae
field maple Acer campestre LC tree aceraceae
hazel Corylus avellana LC tree corylaceae
ash Fraxinus excelsior LC tree oleaceae
holly Ilex aquifolium LC tree aquifoliaceae
common oak Quercus robur LC tree fagaceae

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
Figure of eight
Diloba caeruleocephala
Endangered Crataegus spp., Prunus spinosa, Prunus spp.
Maple pug
Eupithecia inturbata
Endangered Acer campestre
The lappet
Gastropacha quercifolia
Endangered Crataegus monogyna, Prunus spinosa, Prunus spp.
Scarce vapourer
Orgyia recens
Endangered Corylus avellana, Crataegus spp., Filipendula ulmaria, Prunus spinosa, Quercus spp., Rubus fruticosus
Black hairstreak
Satyrium pruni
Endangered Prunus spinosa
Mouse moth
Amphipyra tragopoginis
Vulnerable Crataegus spp.
The sprawler
Asteroscopus sphinx
Vulnerable Corylus avellana, Crataegus spp., Fraxinus excelsior, Prunus spinosa, Prunus spp., Quercus spp., Viburnum lantana
Broom moth
Ceramica pisi
Vulnerable Rubus fruticosus
Mottled umber
Erannis defoliaria
Vulnerable Acer campestre, Corylus avellana, Crataegus spp., Prunus spinosa, Quercus spp.
Satyr pug
Eupithecia satyrata
Vulnerable Filipendula ulmaria
The lackey
Malacosoma neustria
Vulnerable Corylus avellana, Crataegus monogyna, Prunus spinosa, Prunus spp., Quercus spp., Rubus fruticosus
Pale brindled
Phigalia pilosaria
Vulnerable Cornus sanguinea, Corylus avellana, Crataegus laevigata, Crataegus monogyna, Fraxinus excelsior, Prunus spinosa, Quercus spp.
Grizzled skipper
Pyrgus malvae
Vulnerable Rubus fruticosus
Brown hairstreak
Thecla betulae
Vulnerable Prunus spinosa
Early moth
Theria primaria
Vulnerable Crataegus laevigata, Crataegus monogyna, Prunus spinosa, Quercus spp.
Pale eggar
Trichiura crataegi
Vulnerable Corylus avellana, Crataegus monogyna, Prunus spinosa, Quercus spp., Rubus fruticosus
Oak hook-tip
Watsonalla binaria
Vulnerable Quercus robur
Flounced chestnut
Agrochola helvola
Near Threatened Crataegus monogyna, Quercus spp.
Beaded chestnut
Agrochola lychnidis
Near Threatened Crataegus monogyna
Grey chi
Antitype chi
Near Threatened Crataegus monogyna
Garden tiger
Arctia caja
Near Threatened Prunus spinosa
Light crimson underwing
Catocala promissa
Near Threatened Quercus robur
Dark crimson underwing
Catocala sponsa
Near Threatened Quercus robur
Brindled ochre
Dasypolia templi
Near Threatened Angelica sylvestris
Heart moth
Dicycla oo
Near Threatened Quercus robur
Large thorn
Ennomos autumnaria
Near Threatened Corylus avellana, Crataegus spp., Prunus spinosa, Prunus spp., Quercus 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 Angelica sylvestris, Crataegus monogyna, Prunus spinosa
White-spotted pug
Eupithecia tripunctaria
Near Threatened Angelica sylvestris
Double dart
Graphiphora augur
Near Threatened Crataegus spp., Prunus spinosa, Quercus spp.
Swallowtail papilio
Papilio machaon
Near Threatened Angelica sylvestris
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.