Nance Wood

Site of Special Scientific Interest · 50.2584, -5.2767

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Cornwall County

Condition (Natural England)

Favourable (1)
UnitFeatureConditionArea (ha)Assessed
SW665449 Favourable 10.01 2010-07-27

Climate exposure

This is about exposure to a nationwide pressure this habitat type carries — not a verdict on this site's own management.

Coastal

Coastal habitats are exposed to sea-level rise and storm erosion. Where hard sea defences sit behind them, there's nowhere landward to retreat to — a squeeze that keeps compressing the habitat no matter how well it's managed.

Geology & landscape

Geological Period: Devonian · Rock Type: Shale

Landscape processes: Coastal

Description

Nance Wood SSSI Description Nance Wood is a narrow strip of semi-natural woodland developed on steep north-facing slopes. The parent rock is Devonian shale, giving rise to soils which are predominantly acid and free-draining, although there are small pockets of more base-rich soils. The majority of the woodland is composed of almost pure sessile oak Quercus petraea, last actively coppiced some 40–60 years ago. Proximity to the sea has resulted in a low, wind-pruned canopy between four and six metres high. The ground flora consists of honeysuckle Lonicera periclymenum, bramble Rubus fruticosus, bracken Pteridium aquilinum and bluebell Hyacinthoides non-scripta, with scattered stands of greater woodrush Luzula sylvatica on steeper slopes. The shrub layer is composed of holly Ilex aquifolium, hazel Corylus avellana and hawthorn Crataegus monogyna. The southern arm of Nance Wood supports an area of ash-oak-sycamore coppice, with some hawthorn, blackthorn Prunus spinosa and a few wych elm Ulmus glabra. The site supports a good bryophyte flora, with 81 moss and 21 liverwort species recorded. Of particular interest are the mosses Hookeria lucens which shows a typically oceanic, west coast distribution, and the nationally rare species Pohlia filum and Aloina ambigua. The site is of particular importance for the presence of Irish spurge Euphorbia hyberna, one of the only 2 British localities for this Red Data Book species. The dwarf Quercus petraea coppice is of interest in its own right.

Species mentioned

English name
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Latin name
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IUCN / Red List Type Family
bracken Pteridium aquilinum LC fern dennstaedtiaceae
Irish spurge Euphorbia hyberna Not listed in GB list herb euphorbiaceae
bluebell Hyacinthoides non-scripta LC herb liliaceae
honeysuckle Lonicera periclymenum LC herb caprifoliaceae
bramble Rubus fruticosus LC herb rosaceae
tall aloe moss Aloina ambigua LC moss pottiales
shining hookeria Hookeria lucens LC moss hookeriales
slender nodding moss Pohlia filum LC moss bryales
great wood rush Luzula sylvatica LC rush juncaceae
hawthorn Crataegus monogyna LC shrub rosaceae
blackthorn Prunus spinosa LC shrub rosaceae
hazel Corylus avellana LC tree corylaceae
holly Ilex aquifolium LC tree aquifoliaceae
sessile or durmast oak Quercus petraea LC tree fagaceae
wych elm Ulmus glabra LC tree ulmaceae

Plant communities

W25 — Bracken scrub

Pteridium aquilinum-Rubus fruticosus underscrub

Hedera helix, Acer pseudoplatanus, Fagus sylvatica, Quercus robur, Fraxinus excelsior, Sambucus nigra, Ulex europaeus, Crataegus monogyna, Prunus spinosa, Luzula multiflora, Mnium hornum, Brachythecium rutabulum, Kindbergia praelonga, Angelica sylvestris, Conopodium majus, Heracleum sphondylium, Arum maculatum, Cirsium arvense, Lonicera periclymenum, Silene dioica, Stellaria holostea, Mercurialis perennis, Geranium robertianum, Glechoma hederacea, Teucrium scorodonia, Hyacinthoides non-scripta, Chamerion angustifolium, Circaea lutetiana, Digitalis purpurea, Rumex acetosa, Anemone nemorosa, Ficaria verna, Potentilla erecta, Rosa arvensis, Rosa canina, Rubus fruticosus agg., Rubus idaeus, Galium aparine, Galium mollugo sens.lat., Galium saxatile, Urtica dioica, Viola riviniana, Agrostis capillaris, Anthoxanthum odoratum, Arrhenatherum elatius, Dactylis glomerata, Festuca rubra, Holcus lanatus, Holcus mollis, Poa trivialis, Pteridium aquilinum, Dryopteris dilatata, Dryopteris filix-mas