Name:
Alnus serrulata / Sanguisorba canadensis - Parnassia grandifolia - Helenium brevifolium Seepage Shrubland
Reference:
NatureServe Biotics 2019
Description:
This association is apparently restricted to western Virginia in Grayson and Carroll counties, and in adjacent Allegheny County, North Carolina (degraded example of uncertain placement). A similar type of vegetation occurs on Bluff Mountain in North Carolina. All known occurrences are in seepage areas underlain by hornblende, gabbro, or gneiss at elevations ranging from about 700-1100 m (2400-3500 feet). This community has a mixed physiognomy ranging from shrub thicket to herbaceous. In general it occurs as a shrubland of <i>Alnus serrulata, Spiraea alba var. latifolia, Spiraea tomentosa</i>, and <i>Lyonia ligustrina var. ligustrina</i>. Typically there are a few scattered individuals of <i>Pinus strobus</i> and <i>Acer rubrum</i> but tree cover rarely reaches 10%. The herbaceous layer is relatively continuous and may be quite diverse. Herbaceous species include <i>Glyceria striata, Juncus subcaudatus, Osmunda regalis, Oxypolis rigidior, Viola cucullata, Eleocharis tenuis, Cirsium muticum, Dichanthelium dichotomum, Houstonia caerulea, Oenothera perennis, Sanguisorba canadensis, Parnassia grandifolia, Symphyotrichum novi-belgii, Carex atlantica, Helenium brevifolium, Solidago uliginosa, Calopogon tuberosus, Muhlenbergia glomerata, Schizachyrium scoparium, Xyris torta, Panicum virgatum, Rhynchospora capitellata, Rhynchospora alba</i>, and <i>Selaginella apoda</i>.
Accession Code:
urn:lsid:vegbank.org:commConcept:32773-{88EEDD60-9A7C-404D-8320-043156A5A542}
Plot-observations of this Community Concept:
13
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