Where is Poria incrassata most commonly found?

Poria incrassata, commonly known as the thick-headed poria or the wood-rotting fungus, is primarily found in the Southeastern United States. This mushroom thrives in humid environments typically associated with the subtropical climates prevalent in this region. The southeastern states provide the moist conditions and the types of wood substrates that Poria incrassata needs to grow, such as decaying wood and tree stumps, making it more commonly found here compared to other regions of the U.S.

The other regions, such as the Northwest, Midwest, and Southwest, typically have different climate conditions and ecosystem types that are less conducive to the growth of this particular species of fungus. In the Northwest, you may find other types of fungi that are better adapted to cooler, wetter climates, while the Midwest and Southwest have their own distinct fungal communities that do not include Poria incrassata. Therefore, the Southeastern U.S. stands out as the most appropriate and accurate location where this species can be found.