Name:
Impatiens capensis - Peltandra virginica - Polygonum arifolium - Bolboschoenus fluviatilis - Typha angustifolia Tidal Marsh
Reference:
NatureServe Biotics 2019
Description:
This association occupies the higher elevation zone of freshwater to slightly oligohaline marshes along the Atlantic coast from Maine to Virginia. In the southern part of the range (northern Virginia, Maryland, and Delaware), this is the principal mixed freshwater tidal marsh community, forming extensive patches. The vegetation is typically mixed and dense, with highly variable species composition and patch dominance. <i>Impatiens capensis, Peltandra virginica, Polygonum</i> spp. (<i>Polygonum arifolium, Polygonum sagittatum, Polygonum punctatum, Polygonum hydropiperoides</i>), <i>Bolboschoenus fluviatilis</i>, and <i>Typha angustifolia</i> are characteristic and often abundant. Other species that may be abundant in a given stand include <i>Leersia oryzoides, Hibiscus moscheutos, Mikania scandens, Sagittaria latifolia, Amaranthus cannabinus, Zizania aquatica, Bidens laevis, Bidens coronata, Pontederia cordata, Typha latifolia, Onoclea sensibilis</i>, and <i>Carex comosa</i>. Additional associates include <i>Boehmeria cylindrica, Acorus calamus, Cicuta maculata var. maculata, Cuscuta gronovii var. gronovii, Apios americana, Schoenoplectus tabernaemontani, Bolboschoenus novae-angliae, Echinochloa walteri, Lycopus americanus, Pilea fontana, Eleocharis palustris, Iris versicolor</i>, and <i>Sium suave</i>. In the northern portion of the range, <i>Carex stricta</i> is also common. On the Connecticut River, <i>Impatiens capensis</i> is less important, and a levee is often present in the high marsh supporting such species as <i>Carex lacustris, Ambrosia trifida</i>, and <i>Eupatorium perfoliatum</i>.
Accession Code:
urn:lsid:vegbank.org:commConcept:34971-{80159468-7BAA-45BB-947E-FC72125A7FE5}
Plot-observations of this Community Concept:
49
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