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  • 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, 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. A distinction is sometimes made between short pocosins, which have shorter trees, deeper peat, and fewer soil nutrients, and tall pocosins, which have taller trees, shallow peat, and more soil nutrient. Where soil saturation is less frequent and peat depths shallower, pocosins transition into pine flatwoods. A loose definition of "pocosin" can include all shrub and forest bogs, as well as stands of Atlantic White Cypress and loblolly pine on the Atlantic coastal plain. A stricter definition restricts pocosins to shrubby "short pocosins" and pond pine-forested "tall pocosins". Wikipedia

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