Hedenham Wood

Site of Special Scientific Interest · 52.5001, 1.4074

Also within

Norfolk County

Condition (Natural England)

Unfavourable Recovering (2)
UnitFeatureConditionArea (ha)Assessed
TM313944 Unfavourable Recovering 12.3 2010-01-18
TM314947 Unfavourable Recovering 11.1 2010-01-18

Geology & landscape

Rock Type: Glacial Till

Landscape processes: Glacial

Description

Description Hedenham Wood is an ancient woodland situated at the head of a shallow valley on the South Norfolk boulder clay. Much of the wood comprises oak standards over mixed hornbeam coppice but the valley bottom contains wet ash maple wood with stands of Elm. The ground flora is diverse and includes several uncommon species. Heavy calcareous clay on the valley sides supports hornbeam Carpinus betulus coppice with maple Acer campestre, ash Fraxinus excelsior and hazel Corylus avellana under large standards of oak Quercus robur, ash and hornbeam. Other woody species include goat willow Salix caprea, aspen Populus tremula, spindle Euonymus europaeus, guelder rose Viburnum opulus, dogwood Cornus sanguinea and midland hawthorn Crataegus laevigata. On lighter soils hornbeam and ash coppice is almost pure. This is replaced by predominantly ash and maple in the valley bottom, with big, high cut elm Ulmus procera stools in the south. Suckering elm covers the site of Hedenham Hall. Where ground flora is not completely shaded out by the hornbeam, dog’s mercury Mercurialis perennis is generally dominant but enchanter’s nightshade Circaea lutetiana, ramsons Allium ursinum and bluebell Hyacinthoides non-scripta are locally abundant. Overall, the wood’s ground flora appears rather uniform but many species are present at low frequency, most notably greater butterfly orchid Platanthera chlorantha, herb paris Paris quadrifolia and stinking hellebore Helleborus foetidus, but also including dewberry Rubus caesius, hairy wood rush Luzula pilosa, hairy St John’s wort Hypericum hirsutum, wood anemone Anemone nemorosa, sanicle Sanicula europaea, primrose Primula vulgaris and water mint Mentha aquatica. Despite recent replanting with oak and ash in the north and incomplete coppice recoverythere, the vegetation types described above are still discernible. Tufted hair grass Deschampsia cespitosa, soft rush Juncus effusus, hairy St John’s wort and selfheal Prunella vulgaris are more frequent there. Where light penetrates to the rides the flora is fairly rich, including pendulous sedge Carex pendula, wood sedge C. sylvatica, meadowsweet Filipendula ulmaria, hybrid avens Geum x intermedium, yellow pimpernel Lysimachia nemorum and yellow loosestrife L. vulgaris.

Species mentioned

English name
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Latin name
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IUCN / Red List Type Family
tufted hair grass Deschampsia cespitosa LC grass poaceae
ramson Allium ursinum LC herb liliaceae
wood anemone Anemone nemorosa LC herb ranunculaceae
enchanter's nightshade Circaea lutetiana LC herb onagraceae
meadow sweet Filipendula ulmaria LC herb rosaceae
foetid hellebore Helleborus foetidus LC herb ranunculaceae
bluebell Hyacinthoides non-scripta LC herb liliaceae
hairy St John's wort Hypericum hirsutum LC herb hypericaceae
yellow pimpernel Lysimachia nemorum LC herb primulaceae
water mint Mentha aquatica LC herb lamiaceae
dog's mercury Mercurialis perennis LC herb euphorbiaceae
herb paris Paris quadrifolia VU herb melanthiaceae
greater butterfly orchid Platanthera chlorantha NT herb orchidaceae
primrose Primula vulgaris LC herb primulaceae
selfheal Prunella vulgaris LC herb lamiaceae
dewberry Rubus caesius LC herb rosaceae
sanicle Sanicula europaea LC herb apiaceae
soft rush Juncus effusus LC rush juncaceae
hairy wood-rush Luzula pilosa LC rush juncaceae
pendulous sedge Carex pendula LC sedge cyperaceae
dogwood Cornus sanguinea LC shrub cornaceae
midland hawthorn Crataegus laevigata LC shrub rosaceae
spindle tree Euonymus europaeus LC shrub celastraceae
gelder rose Viburnum opulus LC shrub caprifoliaceae
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
English elm Ulmus procera LC tree ulmaceae
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
Figure of eight
Diloba caeruleocephala
Endangered Crataegus spp.
Dark bordered beauty
Epione vespertaria
Endangered Populus tremula
Maple pug
Eupithecia inturbata
Endangered Acer campestre
The lappet
Gastropacha quercifolia
Endangered Salix spp.
Duke of Burgundy
Hamearis lucina
Endangered Primula vulgaris
Scarce vapourer
Orgyia recens
Endangered Corylus avellana, Crataegus spp., Filipendula ulmaria, Quercus spp., Salix spp., Ulmus spp.
White-letter hairstreak
Satyrium w-album
Endangered Ulmus spp.
Mouse moth
Amphipyra tragopoginis
Vulnerable Crataegus spp., Salix caprea
The sprawler
Asteroscopus sphinx
Vulnerable Corylus avellana, Crataegus spp., Fraxinus excelsior, Populus spp., Quercus spp., Salix spp., Ulmus spp.
Broom moth
Ceramica pisi
Vulnerable Ulmus spp.
Scarce chocolate-tip
Clostera anachoreta
Vulnerable Populus spp., Populus tremula, Salix spp.
Mottled umber
Erannis defoliaria
Vulnerable Acer campestre, Carpinus betulus, Corylus avellana, Crataegus spp., Populus tremula, Quercus spp., Salix spp., Ulmus spp.
Satyr pug
Eupithecia satyrata
Vulnerable Filipendula ulmaria, Hypericum spp., Salix spp.
Grayling
Hipparchia semele
Vulnerable Deschampsia cespitosa
The lackey
Malacosoma neustria
Vulnerable Corylus avellana, Quercus spp., Salix spp., Ulmus spp.
Pale brindled
Phigalia pilosaria
Vulnerable Cornus sanguinea, Corylus avellana, Crataegus laevigata, Fraxinus excelsior, Populus spp., Quercus spp., Salix caprea
The anomalous
Stilbia anomala
Vulnerable Deschampsia cespitosa
Early moth
Theria primaria
Vulnerable Crataegus laevigata, 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., Ulmus spp.
Beaded chestnut
Agrochola lychnidis
Near Threatened Salix spp.
Grey chi
Antitype chi
Near Threatened Mentha spp., 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
Dusky-lemon sallow
Cirrhia gilvago
Near Threatened Ulmus procera
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, Crataegus spp., Populus spp., Quercus spp., Salix spp., Ulmus 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 Crataegus spp., Quercus spp., Salix spp., Ulmus 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.