Name:
Pinus rigida - Quercus alba - Quercus stellata Woodland Alliance
Reference:
NatureServe Biotics 2019
Description:
This alliance includes open woodland vegetation dominated by <i>Pinus rigida</i> and either <i>Quercus alba</i> or <i>Quercus stellata</i>. This alliance currently contains four associations, each occurring over ultramafic rocks in the Southern Blue Ridge and on serpentine bedrock on the Piedmont in Pennsylvania. These <i>Pinus rigida - Quercus alba</i> woodlands typically occur over a cespitose graminoid-dominated understory with little shrub cover. Other canopy and subcanopy trees may include <i>Acer rubrum, Oxydendrum arboreum, Pinus virginiana</i>, and <i>Tsuga canadensis</i>. The dense herbaceous stratum is dominated by <i>Andropogon gerardii, Sporobolus heterolepis</i>, and <i>Schizachyrium scoparium</i>. Common forbs include <i>Hexastylis arifolia var. ruthii, Packera plattensis</i>, and <i>Thalictrum macrostylum</i>. These communities are unique and have a restricted range and few known occurrences. Other characteristic species in the Southern Blue Ridge include <i>Carex woodii, Castilleja coccinea, Danthonia compressa, Danthonia spicata, Deschampsia cespitosa, Dichanthelium boscii, Dichanthelium dichotomum, Elymus trachycaulus ssp. trachycaulus, Kalmia latifolia, Muhlenbergia glomerata, Oenothera fruticosa, Panicum virgatum, Phlox stolonifera, Physocarpus opulifolius, Poa saltuensis, Rhododendron viscosum, Sorghastrum nutans, Symphyotrichum laeve, Symphyotrichum undulatum, Thaspium trifoliatum, Vaccinium stamineum</i>, and <i>Viburnum nudum var. cassinoides</i>. These woodlands are known from shallow, rocky soils associated with outcrops of serpentinized olivine.
Accession Code:
urn:lsid:vegbank.org:commConcept:38093-{8EE2E914-21A8-4F18-A791-53537B325F66}
Plot-observations of this Community Concept:
0
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