Name:
Carex spp. - Calamagrostis canadensis Midwest Wet Meadow Alliance
Reference:
NatureServe Biotics 2019
Description:
This herbaceous wetland is found in the midwestern United States and adjacent southern Canada. Medium to tall (0.5-1.5 m) graminoids comprise most of the vegetation. Herbaceous cover is usually moderate to dense, unless recent severe disturbance has reduced it. Stands are dominated by <i>Calamagrostis canadensis</i> and tall <i>Carex</i> spp., especially <i>Carex aquatilis, Carex lacustris, Carex pellita, Carex stricta</i>, and, in the southern part of the alliance's range, <i>Carex cristatella, Carex stipata</i>, and <i>Carex vulpinoidea</i>. Some sites are very strongly dominated by one or a few species. Others have a more diverse composition, including other graminoids such as <i>Agrostis gigantea, Carex rostrata, Glyceria grandis, Poa compressa, Poa palustris, Scirpus cyperinus</i>, and <i>Typha latifolia</i> and forbs such as <i>Asclepias incarnata, Apocynum cannabinum, Campanula aparinoides, Comarum palustre, Epilobium leptophyllum, Eutrochium maculatum, Eupatorium perfoliatum, Impatiens capensis, Iris versicolor, Polygonum amphibium</i>, and <i>Symphyotrichum lanceolatum</i>. <i>Phalaris arundinacea</i> is a common invasive species in this alliance and can come to dominate stands. Shrubs and trees have less than 25% cover. <i>Alnus</i> spp., <i>Cornus racemosa, Salix</i> spp., and <i>Spiraea alba</i> are among the most common. Soils of this alliance are often fine-textured but can be coarse-textured if there is a subsurface layer or source of water to keep the site flooded or saturated for most of the growing season. Organic matter tends to build up in the soils.
Accession Code:
urn:lsid:vegbank.org:commConcept:39314-{C3B0C284-32E3-4798-BDCF-F20784464EB6}
Plot-observations of this Community Concept:
0
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