Name:
Salix nigra / Phalaris arundinacea - Apocynum cannabinum Wet Shrubland
Reference:
NatureServe Biotics 2019
Description:
This community is a willow shrubland of low riverbanks along moderate- to high-energy rivers in the northeastern U.S. and High Allegheny Plateau. It occurs on cobble substrates with sand and gravel in areas that are flooded only during high-water events, but receive winter ice-scour. It occupies an intermediate position along a disturbance gradient between open, herbaceous cobble shores and higher floodplain forests. <i>Salix nigra</i> is often dominant or codominant with other willows or dogwoods forming a dense shrub layer. Less frequent shrubs and tree saplings include <i>Salix eriocephala, Salix lucida, Salix sericea, Alnus incana, Alnus serrulata, Cornus amomum, Cornus sericea, Spiraea alba var. latifolia, Platanus occidentalis, Acer rubrum, Acer saccharinum</i>, and <i>Populus deltoides</i>. The herbaceous layer is often sparse but variable in cover and composition, including <i>Carex torta, Panicum dichotomiflorum, Panicum virgatum, Dichanthelium clandestinum, Echinochloa crus-galli, Elymus virginicus, Justicia americana, Boehmeria cylindrica, Polygonum amphibium, Phalaris arundinacea, Calamagrostis canadensis, Apocynum cannabinum, Agrostis</i> spp., <i>Solidago gigantea, Solidago rugosa, Eupatorium maculatum, Rorippa islandica, Lysimachia terrestris, Polygonum</i> spp., and <i>Bidens</i> spp. Invasive, exotic species can be problematic in this community, including <i>Polygonum cuspidatum, Lythrum salicaria, Tussilago farfara</i>, and <i>Cynanchum louiseae</i>.
Accession Code:
urn:lsid:vegbank.org:commConcept:34714-{3EBD8343-6725-44D0-8015-C41F1EA10EF8}
Plot-observations of this Community Concept:
29
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