Name:
Pinus rigida Woodland Alliance
Reference:
Eastern Ecology Working Group of...
Description:
This alliance includes evergreen woodlands of rock outcrops, summits, exposed slopes, or, less frequently, sandy soils. In the southeastern United States, associations are dominated by Pinus rigida with or without an admixture of Pinus virginiana. In the northeastern United States, associated canopy species include Pinus resinosa, Pinus strobus, and Pinus banksiana, sometimes with an understory of Quercus ilicifolia. In the northeastern United States, associations in this alliance occur on xeric, sandy terraces within the Coastal Plain from southern Maine to Cape Henlopen, Delaware, including paleodunes and other habitats of the New Jersey pine barrens. Examples also occur on coastal acidic rock outcrops and rocky summits of southern Maine, eastern New York, Nova Scotia, Canada, as well as on Cape Cod, Massachusetts. Other possible habitats include sand plains, flat glacial outwash plains, sand dunes and glacial till. In the North Atlantic Coast ecoregion, stands are on sandy soils, which are typically well-drained and nutrient-poor. The habitats are fire-maintained or with a maritime influence. In the southeastern United States, associations in this alliance occur at low elevations in the Ridge and Valley, and Cumberland Mountains, on sites outside the geographic range of Pinus pungens. Fire plays an important role in maintaining these communities, but on the most extreme sites, these communities are maintained by topo-edaphic conditions.
Accession Code:
VB.CC.18329.PINUSRIGIDAWOOD
Plot-observations of this Community Concept:
0
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