Name:
Alnus (incana ssp. rugosa, serrulata) - Cornus amomum Shrubland
Reference:
Eastern Ecology Working Group of...
Description:
This type comprises tidal freshwater, or perhaps also oligohaline, shrublands dominated by Alnus serrulata and/or Alnus incana ssp. rugosa. It is found in coastal areas with tidally influenced river systems in the North Atlantic. Flood waters are typically slightly acid (pH less than 5) and soils are usually mineral without significant peat deposits. In some examples one or both of these may be characteristically dominant or nearly so. Other examples may be more semi-open with a mixed canopy of Alnus with other shrubs such as Cornus amomum, Rosa palustris, Ilex verticillata, Viburnum dentatum, Clethra alnifolia, and Lindera benzoin. Other woody plants which may be present include Sambucus canadensis, Salix spp., Amorpha fruticosa, Cephalanthus occidentalis, Decodon verticillatus, Toxicodendron vernix, and Toxicodendron radicans. More northern examples may contain Viburnum recognitum and Spiraea alba var. latifolia (= Spiraea latifolia). Some shrub associates include Decodon verticillatus and Toxicodendron vernix; some herbaceous associates are Osmunda regalis var. spectabilis, Thelypteris palustris var. pubescens, Galium spp., Onoclea sensibilis, Pilea fontana, Polygonum punctatum, Apios americana, Typha latifolia, Peltandra virginica, Pontederia cordata, Mikania scandens, Symphyotrichum novi-belgii (= Aster novi-belgii), Boehmeria cylindrica, Impatiens capensis, Triadenum walteri, Asclepias incarnata, Carex atlantica (= Carex incomperta), Platanthera clavellata, and Xyris torta. Carex stricta may also be present, and there is a great deal of micro-relief (tussocks and furrows) leading to high species diversity.
Accession Code:
VB.CC.19328.ALNUSINCANASSPR
Plot-observations of this Community Concept:
0
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Names:
Translated: (Speckled Alder, Smooth Alder) - Silky Dogwood Shrubland
UID: ELEMENT_GLOBAL.2.684398
NatureServe
Explorer
Code: CEGL006337
Scientific: Alnus (incana ssp. rugosa, serrulata) - Cornus amomum Shrubland
Common: North Atlantic Fresh Tidal Shrub Swamp
(convergence) and Synonyms:
(undetermined)
Alnus (incana ssp. rugosa, serrulata) - Cornus amomum Shrubland
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