The broadleaf woodlands of the National Park are mainly oak woodlands concentrated on the steep valley sides of the main Dartmoor rivers. Most have remained wooded since at least the 1600s and are therefore referred to as being ancient. They support rare lichens and nesting birds including pied flycatcher and wood warbler.

Wet woodlands of willow and alder are relatively small in area and found in the valley bottoms.

The large forestry plantations such as Burrator, Bellever and Fernworthy do not include many native trees but the conifers do provide homes for species uncommon elsewhere, such as crossbill. Nightjar and other species take advantage of clear-felled areas.