Name:
Schizachyrium scoparium - Bouteloua curtipendula - Stenaria nigricans Central Glade & Barrens Group
Reference:
NatureServe Biotics 2019
Description:
This vegetation is found primarily in the Ridge and Valley region from southwestern Virginia southward; the Inner Nashville Basin of Tennessee; on Dolomite in Bibb County, Alabama, in the vicinity of the Little Cahaba River; at low to moderate elevations in the Central Appalachians; and in the Interior Highlands of the Ozark, Ouachita, and Interior Low Plateau regions. This alkaline and circumneutral glade group encompasses shrublands, annual and perennial herbaceous vegetation, and sparsely vegetated rock outcrops on sedimentary and meta-sedimentary dolomite and limestone. These substrates are alkaline or circumneutral, and the thin soils are derived from the underlying rock. The vegetation varies according to the depth of the soil, or absence of soil. In the outcrops, annual plants dominate, such as <i>Sporobolus vaginiflorus, Sporobolus neglectus, Phemeranthus calcaricus, Sedum pulchellum</i>, and <i>Leavenworthia</i> spp. The areas that have thin soils may have perennial grasses and forbs such as <i>Schizachyrium scoparium, Sorghastrum nutans, Bouteloua curtipendula, Panicum flexile, Panicum capillare, Silphium</i> spp., <i>Carex eburnea</i>, and <i>Carex crawei</i>. Forbs vary greatly across the range and variability of the group and may be diverse. The shrublands can be dominated by <i>Hypericum</i> spp., <i>Rhus aromatica, Forestiera ligustrina</i>, and <i>Juniperus virginiana var. virginiana</i>. Sometimes widely scattered trees occur within the shrubs or perennial grasslands and may include <i>Juniperus virginiana var. virginiana, Quercus muehlenbergii</i>, and <i>Quercus stellata</i>. Some examples have numerous regionally disjunct and near-endemic plants, and have very high conservation value because of this.
Accession Code:
urn:lsid:vegbank.org:commConcept:39982-{2AB0C56B-F047-4A99-872B-6B764E6F5E89}
Plot-observations of this Community Concept:
0
|
