The Appalachian Highlands are primarily covered by deciduous forests, which have trees that shed their leaves in the fall.

The Appalachian Highlands are predominantly characterized by deciduous forests, which are home to a variety of tree species that lose their leaves each autumn. These forests are rich in biodiversity, with species like oak, maple, hickory, and beech trees. The climate and elevation variations in the region allow for a mix of deciduous and some coniferous trees in higher elevations. Deciduous forests are vital for supporting wildlife, promoting soil fertility, and maintaining the region's ecological balance. These forests are especially known for their spectacular fall foliage, which draws tourists to the region every year.