Name:
Pinus rigida Swamp Woodland Alliance
Reference:
NatureServe Biotics 2019
Description:
This alliance comprises acidic wetlands, usually peaty, dominated by an open canopy of <i>Pinus rigida</i> usually over an ericaceous understory. In addition to <i>Pinus rigida</i>, canopy associates of this alliance include <i>Acer rubrum, Nyssa sylvatica</i>, and <i>Betula populifolia</i>. The shrub layer may be dominated by <i>Chamaedaphne calyculata</i>, or made up of <i>Gaylussacia baccata, Gaylussacia frondosa, Kalmia angustifolia, Rhododendron canadense</i>, and <i>Vaccinium corymbosum</i>. The herbaceous stratum is generally characterized by <i>Calopogon tuberosus, Eriophorum virginicum</i>, and <i>Scirpus</i> and/or <i>Schoenoplectus</i> spp. Northern occurrences may contain <i>Cornus canadensis, Gaultheria procumbens, Scheuchzeria palustris</i>, and <i>Vaccinium macrocarpon</i>, while woodlands in the southern part of the main range support species such as <i>Arethusa bulbosa, Calamovilfa brevipilis, Gentiana autumnalis, Helonias bullata, Lophiola aurea, Muhlenbergia torreyana, Orontium aquaticum, Xerophyllum asphodeloides</i>, and Xyris spp. In the New Jersey Pine Barrens, additional species include <i>Leiophyllum buxifolium</i> and <i>Polygala lutea</i>. These wetlands are "boggy" in nature, generally with saturated acidic soils and extensive peat accumulation. They form in poorly drained depressions or deeper basins, interdunal swales, and on stream flats (not flooded except in very rare events), and sometimes have a floating bog mat. This alliance ranges from Virginia north to Quebec, but is best developed in New Jersey, New York, and Massachusetts where there are extensive pine barrens.
Accession Code:
urn:lsid:vegbank.org:commConcept:38075-{D485A296-59E1-4EDD-8FC2-2AE264433592}
Plot-observations of this Community Concept:
0
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