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Schizachyrium scoparium - Sporobolus heterolepis Serpentine Grassland | NatureServe Biotics 2019
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Name: Schizachyrium scoparium - Sporobolus heterolepis Serpentine Grassland Reference: NatureServe Biotics 2019 Description: This serpentine grassland community of Pennsylvania and Maryland is associated with soils derived from weathered serpentine bedrock. It typically occurs on mid to upper slopes on very shallow (0-10 cm deep) stony or gravelly sand or silt loam soils. Exposed bedrock and bare ground are common at some locations. Soils are typically very dry, reflecting well-drained to excessively well-drained soil conditions and shallow depth to bedrock. Slope aspect is variable but is rarely due east. The slope angle ranges from 1-16° and is most often between 3-6°. The dominant species in this community are the grasses <i>Schizachyrium scoparium</i> and <i>Sporobolus heterolepis</i>. Other characteristic herbaceous species may include <i>Symphyotrichum depauperatum, Scleria pauciflora, Cerastium arvense var. villosum, Solidago nemoralis, Packera anonyma, Dichanthelium sphaerocarpon</i>, and <i>Arabis lyrata</i>. Woody plants are rare and usually include <i>Juniperus virginiana</i> or pine seedlings and saplings of <i>Pinus rigida</i> and/or <i>Pinus virginiana</i>. A subtype of this community occurs on gravel barrens in Pennsylvania and Maryland. These barrens have the same species composition; however, they typically have less than 60% vegetation cover and exposed serpentine bedrock and gravel as the dominant cover type. Gravel barrens occur at midslope positions with a steep slope (&gt;6° and as much as 16°).  Accession Code: urn:lsid:vegbank.org:commConcept:35085-{CED61C77-8591-40D9-AB77-72B4C186BC63} Plot-observations of this Community Concept: 0
	Party Perspective according to: NatureServe (organization) Perspective from: 21-Sep-2005 to: ongoing
	status: accepted Community's Parent: Schizachyrium scoparium - Sorghastrum nutans - Symphyotrichum depauperatum Serpentine Grassland Alliance This Community's Level: Association This Community's Children: [none]		Names:   UID: ELEMENT_GLOBAL.2.787699 NatureServe Explorer   Code: CEGL006442   Translated: Little Bluestem - Prairie Dropseed Serpentine Grassland   Common: Little Bluestem - Prairie Dropseed Serpentine Grassland   Scientific: Schizachyrium scoparium - Sporobolus heterolepis Serpentine Grassland (convergence) and Synonyms: (similar) Schizachyrium scoparium - Sporobolus heterolepis Serpentine Herbaceous Vegetation