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All of their predominant trees with the neighboring plant communities, and no common animal or plant is restricted to cove forest. The key to its recognition is variety, particularly in the make-up of the canopy, the name given to the roof level of any woodland. Cove forest is not restricted literally to topographic flats and hollows; it may also occur on steep slopes, where soil moisture conditions are suitable.

Many of today’s typical cove hardwood trees have also been found as fossils in rocks of Cretaceous age in the eastern United States. This matchup—and the recognition that the southern mountains have been continuously available for land plant growth since Dinosaur Days—has given plant geographers much food for thought. Cove forest is now plausibly regarded as a very ancient mixture of species. It was the ancestor of several other widespread forest communities. We are fortunate that this type of forest survives uncut in the Great Smoky Mountains.