Vegetation Classification and Mapping Project Report - USGS

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USGS-NPS Vegetation Mapping Program Colonial National Historical Park Figure I19. Coastal Plain Calcareous Seepage Swamp (plot COLO.8) at Colonial National Historical Park. May 2003. NAD 1983 / UTM easting 367768, northing 4118887. 262
USGS-NPS Vegetation Mapping Program Colonial National Historical Park COMMON NAME (PARK-SPECIFIC): COASTAL PLAIN LOBLOLLY PINE - OAK FOREST SYNONYMS USNVC English Name: Loblolly Pine - (White Oak, Southern Red Oak, Post Oak) Successional Coastal Plain Forest USNVC Scientific Name: Pinus taeda - Quercus (alba, falcata, stellata) Successional Coastal Plain Forest USNVC Identifier: CEGL004766 LOCAL INFORMATION Environmental Description: This is a natural to semi-natural habitat type that has developed following anthropogenic disturbance. It is found in low-lying areas or sandy interfluves surrounded by tidal wetlands. Vegetation Description: These forests are dominated by one or more species of Quercus (oak) occurring with varying amounts of Pinus taeda (loblolly pine). The most typical oaks in this habitat are Quercus alba (white oak), Quercus velutina (black oak), and Quercus falcata (southern red oak), but in areas with seasonally perched water tables or ephemeral seepage, Quercus pagoda (cherrybark oak) often dominates, and occasional individuals of Quercus laurifolia (laurel oak) can be found. On higher, drier sites, Quercus stellata (post oak) is a typical associate. Liquidambar styraciflua (sweetgum) can be important in some stands. The understory of these forests can be open, but can often have a well-developed shrub stratum dominated by Ilex opaca var. opaca (American holly) or Persea palustris (swamp bay) or, in drier, sandier sites, Morella cerifera (wax myrtle). Vines of Smilax bona-nox (saw greenbrier), Smilax rotundifolia (roundleaf greenbrier), Toxicodendron radicans (eastern poison ivy), and Vitis rotundifolia (muscadine) often climb into the shrub and tree strata. The ground layer is often covered with the exotic Microstegium vimineum (Nepalese browntop) or has sparse vegetation cover, dominated by pine litter with only scattered grasses and forbs. Canopy and shrub associates vary with the moisture regime of a site. Shrub density is also variable from site to site. Most Abundant Species: Stratum Lifeform Species Tree canopy Broad-leaved deciduous tree Pinus taeda (loblolly pine) Characteristic Species: Chasmanthium laxum (slender woodoats), Morella cerifera (wax myrtle), Pinus taeda (loblolly pine), Quercus falcata (southern red oak), Quercus pagoda (cherrybark oak), Quercus stellata (post oak). Other Noteworthy Species: Information not available. Subnational Distribution with Crosswalk Data: State SRank Rel Conf SName Reference VA SNR . . [not crosswalked] . Local Range: This forest type is the matrix forest of Jamestown Island and the surrounding area. It is found at Swanns Point and Jamestown Island, where it covers 311 hectares (768 acres). Classification Comments: This forest is distinguished from Successional Tuliptree - Loblolly Pine Forest by having greater coverage of oak species and less abundance or lack of Liriodendron tulipifera (tuliptree) and by the presence of such coastal shrubs as Morella cerifera (wax myrtle) and Persea palustris (swamp bay). 263
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Vegetation Classification and Mapping Project Report - USGS

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