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Pocosin forested by pond pines and white cedars
Pocosin forested by pond pines and white cedars

Pocosin is a term for a type of palustrine wetland with deep, acidic, sandy, peat soils. Groundwater saturates the soil except during brief seasonal dry spells and during prolonged droughts. Pocosin soils are nutrient deficient (oligotrophic), especially in phosphorus.

Pocosins occur in the Atlantic coastal plain of North America, spanning from southeastern Virginia, through North Carolina, and into South Carolina. However, the majority of pocosins are found in North Carolina. They occupy poorly drained higher ground between streams and floodplains. Seeps cause the inundation. There are often perched water tables underlying pocosins.

Shrub vegetation is common. Pocosins are sometimes called shrub bogs. Pond pines dominate pocosin forests, but loblolly pine and longleaf pine are also associated with pocosins. Additionally, pocosins are home to rare and threatened plant species including Venus flytrap and sweet pitcher plant. (Full article...)