Irish Hill Copse is a 16 hectare (39.52 acre) Site of Special Scientific Interest in the civil parish of Hamstead Marshall in the English county of Berkshire, notified in 1984. It is located within the North Wessex Downs.
Map of Irish Hill Copse, United Kingdom
Located at grid reference SU405670, this site of coppiced ancient woodland includes an extensive area of calcareous ash/wych elm coppice on the hill sides, merging into wet ash/maple and acid oak/ash/hazel woodland with aspen, on the higher parts of the site. The lower slopes are dominated by Dog's Mercury (Mercurialis perennis), with abundant Herb Paris (Paris quadrifolia), Toothwort (Lathraea squamaria), Solomon's seal (Polygonatum multiflorum), Twayblade and Early Purple Orchids (Listera ovata) and Orchis mascula and, locally, Wild Daffodil (Narcissus pseudonarcissus).