Name:
Alnus incana - Viburnum recognitum / Calamagrostis canadensis Shrub Swamp
Reference:
NatureServe Biotics 2019
Description:
This tall-shrub swamp association occurs in temporarily flooded to semipermanently flooded and saturated sites along streams, lakeshores, old beaver meadows and seepage edges. Soils are wet mucks or peats. Vegetation can be highly variable with no single dominant species but can include <i>Alnus incana, Viburnum recognitum, Cornus sericea, Cornus amomum, Ilex verticillata, Spiraea alba var. latifolia</i>, and/or <i>Salix</i> spp. <i>Spiraea tomentosa, Vaccinium corymbosum</i>, and <i>Chamaedaphne calyculata</i> can occur sporadically in some examples, especially former beaver meadows. Herbaceous species are inversely proportional to shrub cover; they can be dense where the shrub canopy is open. Species can include <i>Calamagrostis canadensis, Caltha palustris, Carex lacustris, Galium tinctorium, Impatiens capensis, Leersia oryzoides, Lycopus uniflorus, Lysimachia terrestris, Polygonum sagittatum, Rubus hispidus, Symplocarpus foetidus, Triadenum virginicum, Thelypteris palustris</i>, and <i>Typha</i> spp. Nonvascular species are common in the Central Appalachians and are dominated by <i>Sphagnum</i> spp. (<i>Sphagnum affine, Sphagnum palustre, Sphagnum papillosum</i>, and <i>Sphagnum recurvum</i>). In New England, nonvascular species tend to be infrequent, although <i>Drepanocladus</i> spp. and/or <i>Sphagnum</i> spp. can occur occasionally, and most often in pools or mudflats or on shrub hummocks, respectively. Mean species richness of all vascular plants and any nonvascular plants with cover >1% is 27 taxa per 400 m2, for 13 plots in West Virginia.
Accession Code:
urn:lsid:vegbank.org:commConcept:35174-{D7E7089D-1B2D-4299-9780-F60A455C149D}
Plot-observations of this Community Concept:
0
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