Wykery Copse

Site of Special Scientific Interest · 51.4103, -0.7778

Also within

Berkshire County

Condition (Natural England)

Favourable (1)
UnitFeatureConditionArea (ha)Assessed
SU850686 Favourable 3.2 2016-09-30

Description

Description Wykery Copse is a fragment of ancient broadleaved woodland of a kind now drastically reduced in Berkshire, situated on London Clay on the fringe of Bracknell. It is exceptionally diverse for its size, in terms of both woodland stand types and herbaceous flora and it contains several rarities. Its interest is enhanced still further by the small stream which flows through it. Woodland types include wet ash maple, valley and base rich springline alder and oak, with birch and hazel. There are intermediate grades and all types except oak have been coppiced at various times. Some English elm survives and there is a thriving colony of the rare wild service tree Sorbus torminalis. Other trees include gean, rowan, holly, crack and grey willows, aspen, crab apple and poplars Populus xcanadensis of planted origin. Coppiced hazel is a major component of the dense and varied understorey, which also includes blackthorn, hawthorn, honeysuckle, wild red currant Ribes rubrum, guelder rose and dogwood, this last unusual on London Clay. The ground flora contains a mosaic of bramble and bluebell Hyacinthoides non-scripta, with more open areas, including the course of the stream, favouring a very wide range of herbaceous species, many of which like wild service and several of the shrubs testify to the long history of the copse. These include several rare or local species, such as the sedges Carex strigosa and C. pallescens, early purple orchid Orchis mascula, wood anemone Anemone nemorosa, pignut Conopodium majus, yellow archangel Lamiastrum galeobdolon, yellow pimpernel Lysimachia nemorum, wood sorrel Oxalis acetosella, primrose Primula vulgaris, figwort Scrophularia nodosa, wood speedwell Veronica montana and the grasses Melica uniflora, Milium effusum and Bromus ramosa. There is a luxuriant moss flora in parts, with Hypnum cupressiforme being particularly abundant. The range of invertebrates and breeding birds appears to be good and warrants further investigation.

Species mentioned

English name
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Latin name
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IUCN / Red List Type Family
hairy brome Bromus ramosa Not listed in GB list grass poaceae
wood melick Melica uniflora NT grass poaceae
wood millet Milium effusum LC grass poaceae
wood anemone Anemone nemorosa LC herb ranunculaceae
pignut Conopodium majus LC herb apiaceae
bluebell Hyacinthoides non-scripta LC herb liliaceae
yellow archangel Lamiastrum galeobdolon LC herb lamiaceae
yellow pimpernel Lysimachia nemorum LC herb primulaceae
early purple orchid Orchis mascula LC herb orchidaceae
wood sorrel Oxalis acetosella LC herb oxalidaceae
primrose Primula vulgaris LC herb primulaceae
red currant Ribes rubrum LC herb grossulariaceae
common figwort Scrophularia nodosa LC herb scrophulariaceae
wood speedwell Veronica montana LC herb plantaginaceae
Cyprus leaved plait moss Hypnum cupressiforme LC moss hypnales
thin spiked wood sedge Carex strigosa LC sedge cyperaceae

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