Trees

Nonnative tree species hinder management of forests, rights-of-way, and natural areas by replacing native plants. This dramatically alters habitat and may alter important natural processes. Almost all of the invasive nonnative trees are hardwoods. Some presently occur as scattered trees, while others form dense stands. Most spread widely by prolific seed production and animal dispersal, while existing infestations increase by abundant root sprouting.

Focusing on tree species, this section covers five exotics invading southern forests, including the tree of heaven, paulownia, chinaberry tree, tallowtree, mimosa, and Melaleuca.