Comm #8611
|
A.1432
» more details
accession code: VB.CC.1209.A1432
NOT CURRENTLY ACCEPTED
|
EcoArt 2002 |
0
|
This alliance, found in the southern Great Plains and several western states, contains bulrush wetlands dominated by ~Schoenoplectus americanus (= Scirpus americanus)$. This alliance is not well understood across its range. In cienegas in Trans-Pecos Texas (and possibly also in southern New Mexico), ~Schoenoplectus americanus$ typically dominates the stands, though ~Flaveria chlorifolia$ or ~Helianthus paradoxus$ may be locally dominant. Other species include ~Samolus ebracteatus ssp. cuneatus, Limonium limbatum$, and ~Distichlis spicata$. Most examples of this community have been hydrologically altered by use of water for irrigation. Elsewhere in Texas it occurs in permanent springs where species may include ~Schoenoplectus americanus, Eleocharis macrostachya, Fuirena simplex, Paspalum distichum, Potamogeton illinoensis$, and in outer zones, ~Andropogon gerardii$. ~Schoenoplectus americanus$-dominated marshes occur throughout Oklahoma, but are most common in the central and western portions of the state, and in the panhandle. Further study is needed to characterize this alliance. |
Comm #8618
|
Carex stricta - Carex vesicaria Herbaceous Vegetation
» more details
accession code: VB.CC.31073.CEGL006412
|
Eastern Ecology Working Group of... |
0
|
These tussock sedge meadows are distributed across the northeastern United States. They occur in seasonally flooded basins or on stream or lake margins. The substrate is peat or muck of variable depth overlying mineral soil. Standing water may be present only at the beginning of, or through much of, the growing season depending on the site and the year's precipitation; even when the water drops, the soils remain saturated. Microtopography is characterized by large tussocks, particularly when the hydroperiod is extended. The physiognomy is strongly herbaceous or, in some cases, herbs mixed with shrubs (up to 25% shrub cover); trees are absent. Bryophyte cover is usually sparse but may occasionally reach over 50%. <i>Carex stricta</i>, in its tussock form, is the usual dominant. <i>Carex vesicaria, Carex utriculata</i>, and <i>Calamagrostis canadensis</i> may also be locally abundant. Associated graminoids include <i>Carex atlantica, Carex canescens, Carex comosa, Carex folliculata, Carex scoparia, Carex stipata, Carex vulpinoidea, Glyceria canadensis, Dulichium arundinaceum, Juncus effusus, Leersia oryzoides</i>, and <i>Scirpus cyperinus</i>; forbs and ferns include <i>Asclepias incarnata, Thelypteris palustris, Eupatorium maculatum, Campanula aparinoides, Osmunda regalis, Comarum palustre (= Potentilla palustris), Lysimachia terrestris, Angelica atropurpurea, Eupatorium perfoliatum, Lycopus americanus, Polygonum hydropiperoides, Galium obtusum, Polygonum sagittatum, Galium tinctorium</i>, and others. <i>Lythrum salicaria</i> may be invasive in some settings. Shrub associates vary with geography. In the northern part of the range, <i>Alnus incana, Myrica gale, Ilex verticillata, Chamaedaphne calyculata</i>, and <i>Spiraea alba</i> are often present. Bryophytes, where present, include <i>Sphagnum magellanicum, Sphagnum girgensohnii, Sphagnum palustre, Drepanocladus aduncus</i>, and others. This association is differentiated from other wet meadows by the strong dominance of <i>Carex stricta</i>. |
add all query results to datacart,
add plots on page to datacart,
drop plots on page from datacart