|Site of Special Scientific Interest|
|Area of Search||Somerset|
|Area||249.9 hectares (2.499 km2; 0.965 sq mi)|
|Natural England website|
This site includes the Ashen Copse Nature Conservation Review site. This site is a large, ancient, semi-natural, broadleaved woodland with a predominantly high forest structure which is unusual in South West Britain. Over the majority of the site, where soils are poorly drained but not waterlogged, the major canopy-forming tree is Pedunculate Oak (Quercus robur), with Ash (Fraxinus excelsior) being locally common and distributed throughout. Hazel (Corylus avellana) is the commonest shrub and occurs throughout. A large number of plant species normally found only in ancient woodlands occur, including Broad-leaved Helleborine (Epipactis helleborine) and Wood Small-reed (Calamagrostis epigejos). The breeding bird community includes Woodcock (Scolopax rusticola), Tree Pipit (Anthus trivialis), Wood Warbler (Phylloscopus sibilatrix), Redstart (Phoenicurus phoenicurus), Buzzard (Buteo buteo), Tawny Owl (Strix aluco), Greater Spotted Woodpecker (Dendrocopos major), Lesser Spotted Woodpecker (Dendrocopos minor) and European Green Woodpecker (Picus viridis). The breeding invertebrates include White Admiral (Ladoga camilla), Silver-washed Fritillary (Argynnis paphia) and Small Pearl-bordered Fritillary (Boloria selene) butterflies and Hornets (Vespa crabro). 
- "Longleat Woods". English Nature. Retrieved 2006-08-17.