Pteridium aquilinum
Other areas are either a dry heath/acidic grassland mosaic, characterised by heaths and western gorse ("Ulex gallii"), or semi-improved acidic grassland in which Yorkshire fog ("Holcus lanatus") is abundant. Tussocky (Thrift) (Holcus/Armeria) communities occur mainly on the western side, and some patches of bracken ("Pteridium aquilinum") on the eastern side.