The central portion of the site is occupied by a small area of predominantly wet woodland, characterized by Alder Alnus glutinosa and Grey Willow Salix cinerea subsp. cinerea , and supporting a ground flora in places dominated by Hemlock Water-dropwort Oenanthe crocata and Common Nettle Urtica dioica , whilst elsewhere it is more varied and includes Yellow Pimpernel Lysimachia nemorum , Marsh-marigold and Meadowsweet. Towards the edges of the wooded area, where the soils are more freely drained, the canopy is composed of Ash Fraxinus excelsior and Pedunculate Oak Quercus robur with a Hazel Corylus avellana understorey. Here a ground flora more typical of ancient woodlands is present, with Bluebell Hyacynthoides non-scriptas , Sanicle Sanicula europaeas and Moschatel Adoxa moschatellina .