Knavenhill Wood

Site of Special Scientific Interest · 52.1399, -1.6419

Also within

Warwickshire County

Condition (Natural England)

Unfavourable Recovering (1)
UnitFeatureConditionArea (ha)Assessed
SP246491 Unfavourable Recovering 24.45 2014-10-27

Habitats

Ancient woodland

Geology & landscape

Rock Type: Glacial Till

Landscape processes: Glacial

Description

Description The woodland occupies a low hill of Lower Lias clays capped with boulder clay lying to the south of Stratford upon Avon. It is an ancient woodland and is an important site in Warwickshire for fungi. Knavenhill Wood is an example of a wet ash Fraxinus excelsior wood on heavy calcareous clay soils in which the canopy is mainly dominated by ash, silver birch Betula pendula and pedunculate oak Quercus robur. Goat willow Salix caprea, wild cherry Prunus avium and wych elm Ulmus glabra are also present. The understorey includes hawthorn Crataegus monogyna, hazel Corylus avellana, wild privet Ligustrum vulgare, dogwood Cornus sanguinea and elder Sambucus nigra. The ground flora is dominated by bramble Rubus fruticosus agg. and tufted hair grass Deschampsia cespitosa and in wetter areas by soft rush Juncus effusus and wood small reed Calamagrostis epigejos. Other species include dog’s mercury Mercurialis perennis, enchanter’s nightshade Circaea lutetiana, male fern Dryopteris filix-mas, honeysuckle Lonicera periclymenum and wood sedge Carex sylvatica. A small area of the woodland has been interplanted with conifers and the occasional exotic oak. sycamore Acer pseudoplatanus is invasive in some areas. Knavenhill Wood has a rich fungal flora. These include a number of species rare in Warwickshire such as Russula gracillima, Laccaria tortilis and Physarum galbeum. The wood also supports twenty two species of butterfly including wood white Leptidea sinapis and purple hairstreak Favonius quercus. A rare fly, Keroplatus testaceus, has also been recorded.

Species mentioned

English name
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Latin name
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IUCN / Red List Type Family
purple hairstreak Favonius quercus LC butterfly lycaenidae
wood white Leptidea sinapis EN butterfly pieridae
male fern Dryopteris filix-mas LC fern dryopteridaceae
wood small-reed Calamagrostis epigejos LC grass poaceae
tufted hair grass Deschampsia cespitosa LC grass poaceae
enchanter's nightshade Circaea lutetiana LC herb onagraceae
honeysuckle Lonicera periclymenum LC herb caprifoliaceae
dog's mercury Mercurialis perennis LC herb euphorbiaceae
bramble Rubus fruticosus agg. Not listed in GB list herb rosaceae
soft rush Juncus effusus LC rush juncaceae
wood sedge Carex sylvatica LC sedge cyperaceae
dogwood Cornus sanguinea LC shrub cornaceae
hawthorn Crataegus monogyna LC shrub rosaceae
wild privet Ligustrum vulgare LC shrub oleaceae
elder Sambucus nigra LC shrub caprifoliaceae
sycamore Acer pseudoplatanus Not listed in GB list tree aceraceae
birch Betula pendula LC tree betulaceae
hazel Corylus avellana LC tree corylaceae
ash Fraxinus excelsior LC tree oleaceae
wild cherry Prunus avium LC tree rosaceae
common oak Quercus robur LC tree fagaceae
wych elm Ulmus glabra LC tree ulmaceae
goat willow Salix caprea LC tree shrub salicaceae