Name:
Alnus serrulata - Magnolia virginiana / Eupatorium pilosum - Rhynchospora gracilenta - Xyris torta Shrubland
Reference:
NatureServe Biotics 2019
Description:
This seepage bog is currently known from the Inner Coastal Plain from central and southern Maryland to southeastern Virginia. It occurs in saturated swales and headwater streams with extremely acidic, infertile soils, through which a constant supply of groundwater is discharged. The most "natural" occurrences of this vegetation are now restricted to military base impact areas and dedicated natural areas that are burned frequently. Compositionally identical vegetation is more common where artificially maintained powerline rights-of-way intersect small streams and swales. The vegetation is usually a patchy shrubland, although scattered small trees of <i>Acer rubrum, Nyssa sylvatica</i>, and <i>Pinus taeda</i> occur at a few sites. The principal shrubs are <i>Alnus serrulata, Magnolia virginiana, Toxicodendron vernix, Viburnum nudum var. nudum, Clethra alnifolia</i>, and <i>Aronia arbutifolia</i>. Small to large, graminoid-dominated herbaceous openings occur among the shrubs. Characteristic herbaceous patch-dominants are <i>Rhynchospora gracilenta, Rhynchospora capitellata, Andropogon glomeratus, Dichanthelium dichotomum var. dichotomum, Scleria muehlenbergii, Eleocharis tortilis, Calamagrostis coarctata, Xyris torta, Fuirena squarrosa, Juncus canadensis</i>, and <i>Juncus longii</i>. Characteristic ferns and forbs include <i>Lycopodiella alopecuroides, Osmunda cinnamomea, Eupatorium pilosum, Viola x primulifolia, Rhexia</i> spp., <i>Triadenum virginicum, Polygala lutea, Polygala cruciata</i>, and <i>Pogonia ophioglossoides</i>. Areas of bare mineral soil are frequently carpeted by <i>Drosera rotundifolia var. rotundifolia, Drosera capillaris</i>, and <i>Utricularia subulata</i>.
Accession Code:
urn:lsid:vegbank.org:commConcept:35131-{98C019A2-DFBF-4348-A8C8-3A2A92EF2E5B}
Plot-observations of this Community Concept:
13
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