Iken Wood

Site of Special Scientific Interest · 52.1552, 1.4990

Condition (Natural England)

Unfavourable Recovering (1)
UnitFeatureConditionArea (ha)Assessed
TM394565 Unfavourable Recovering 5.3 2024-03-18

Description

Description Iken Wood lies close to the banks of the River Alde and may well be the only ancient coppice wood on blown sand in Britain. It is the most interesting example of lowland coppice oak wood in Suffolk and has a distinctive flora typical of woods on light soils. The wood is almost entirely of the lowland hazel, pedunculate oak stand type with a small area of invasive elm wood, which is unusual for such an acidic soil. Huge oak Quercus robur standards are dominant with scattered silver birch Betula pendula, holly Ilex aquifolium and rowan Sorbus aucuparia. The oak was last coppiced over a century ago and now forms part of the canopy with some stools of 9 feet diameter. Beneath the widely spaced oaks are discrete stands of holly and hazel Corylus avellana coppice. Bracken Pteridium aquilinum covers most of the wood with occasional bramble Rubus fruticosus and butcher's broom Ruscus aculeatus. Beneath is abundant bluebell Hyacinthoides non-scripta, white climbing fumitory Corydalis claviculata, greater stitchwort Stellaria holostea and three nerved sandwort Moehringia trinervia. A marked transition occurs beneath the elm wood where characteristic associates include ground ivy Glechoma hederacea, rough meadow grass Poa trivialis, cow parsley Anthriscus sylvestris and bur chervil A. caucalis.

Species mentioned

English name
search for this in other sites
Latin name
search with Google
IUCN / Red List Type Family
bracken Pteridium aquilinum LC fern dennstaedtiaceae
rough meadow grass Poa trivialis LC grass poaceae
wild chervil Anthriscus sylvestris LC herb apiaceae
corydalis Corydalis claviculata Not listed in GB list herb fumariaceae
ground ivy Glechoma hederacea LC herb lamiaceae
bluebell Hyacinthoides non-scripta LC herb liliaceae
three nerved sandwort Moehringia trinervia LC herb carophyllaceae
bramble Rubus fruticosus LC herb rosaceae
common stitchwort Stellaria holostea LC herb carophyllaceae
butchers-broom Ruscus aculeatus LC shrub liliaceae
birch Betula pendula LC tree betulaceae
hazel Corylus avellana LC tree corylaceae
holly Ilex aquifolium LC tree aquifoliaceae
common oak Quercus robur LC tree fagaceae
rowan Sorbus aucuparia LC tree rosaceae

Plant communities

A9 — Fast flowing river and stream, Marginal and inundation, Pond ditch and canal, Sluggish river and stream

Potamogeton natans community

Schoenoplectus lacustris, Juncus bulbosus, Sparganium angustifolium, Sparganium erectum, Sparganium minimum, Alisma plantago-aquatica, Lobelia dortmanna, Equisetum fluviatile, Myriophyllum alterniflorum, Elodea canadensis, Lemna minor, Lemna trisulca, Nymphaea alba, Callitriche platycarpa, Callitriche stagnalis, Littorella uniflora, Potamogeton natans, Ranunculus trichophyllus, Glyceria fluitans, Chara subspinosa

A14 — Fast flowing river and stream

Myriophyllum alterniflorum community

Isolepis fluitans, Juncus bulbosus, Fontinalis antipyretica, Lobelia dortmanna, Equisetum fluviatile, Myriophyllum alterniflorum, Lemna minor, Callitriche stagnalis, Littorella uniflora, Potamogeton filiformis, Potamogeton gramineus, Potamogeton natans, Ranunculus peltatus, Chara spp., Nitella hyalina

A17 — Chalk river and stream, Fast flowing river and stream

Ranunculus penicillatus ssp. pseudofluitans community

Berula erecta, Nasturtium officinale, Elodea canadensis, Lemna minor, Callitriche stagnalis, Veronica beccabunga, Polygonum amphibium, Polygonum hydropiper, Potamogeton crispus, Potamogeton pectinatus, Ranunculus penicillatus ssp. pseudofluitans

A18 — Fast flowing river and stream

Ranunculus fluitans community

Fontinalis antipyretica, Fontinalis squamosa var. curnowii, Myriophyllum alterniflorum, Myriophyllum spicatum, Elodea canadensis, Mentha aquatica, Lemna gibba, Lemna minor, Potamogeton perfoliatus, Ranunculus fluitans, Glyceria fluitans, Phalaris arundinacea

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