Name:
Nuphar polysepala - Azolla filiculoides - Elodea nuttallii Western North American Freshwater Aquatic Vegetation Macrogroup
Reference:
NatureServe Biotics 2019
Description:
This macrogroup consists of rooted, floating, and submerged freshwater aquatic herbaceous vegetation found throughout the temperate regions of western North America. Their occurrence tends to be small-patch or linear in spatial pattern, confined to lakes, ponds, oxbows, and slow-moving portions of rivers and streams. In large bodies of water, they are usually restricted to the littoral region where penetration of light is the limiting factor for growth. A variety of rooted or floating aquatic herbaceous species may dominate, including (but not limited to) <i>Azolla filiculoides, Nuphar polysepala, Polygonum amphibium, Potamogeton foliosus, Potamogeton diversifolius, Potamogeton epihydrus, Potamogeton robbinsii, Ranunculus aquatilis, Ranunculus trichophyllus</i>, and <i>Wolffia</i> spp. Submerged vegetation, such as <i>Ceratophyllum demersum, Ceratophyllum echinatum, Elodea canadensis, Elodea nuttallii, Myriophyllum hippuroides</i>, and <i>Myriophyllum sibiricum</i>, is often present. These communities occur in water too deep for emergent vegetation. Species composition is often dominated by cosmopolitan species but many regionally characteristic species may also occur. Characteristic western U.S. species include <i>Azolla filiculoides, Azolla microphylla, Nuphar polysepala, Nymphaea tetragona</i>, and <i>Stuckenia striata</i>.
Accession Code:
urn:lsid:vegbank.org:commConcept:40510-{1A6AC6D7-08C6-451E-8C22-2973CC851BDF}
Plot-observations of this Community Concept:
0
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