In this priority habitat mature, open grown trees such as oak, ash, alder or birch are scattered among more open areas of grassland, bracken, heath or wetland. Younger trees may also be present and can be locally quite dense, but the total canopy cover through the area as a whole is more open than in woodland. The ground vegetation is very varied in species composition but is generally managed in an unintensive way, with no more than minimal use of fertilisers or pesticides. As a result it tends to be of a semi-natural nature, and is often of much ecological interest. It is commonly grazed by deer or domestic stock such as sheep or cattle. In some places it is not currently grazed but has been in the past.