Print Report

CEGL001813 Carex nebrascensis Wet Meadow

Type Concept Sentence: No Data Available

Common (Translated Scientific) Name: Nebraska Sedge Wet Meadow

Colloquial Name: Nebraska Sedge Wet Meadow

Hierarchy Level:  Association

Type Concept: This minor wetlands community occurs on the western Great Plains and throughout much of the western U.S. Elevation ranges from 1000-2800 m (3300-9200 feet). Stands form open meadows that occur along the margins of streambanks, flat floodplains, and lakes often forming a band along the alluvial terrace, or on marshy areas surrounding springs and below seeps on lower hillslopes, as well as small patches within spring-fed alcoves of the southwestern deserts. This association is often found on well-developed soil, but occurs on a wide variety of soil types that tend to be fine-textured alluvium, or clay to organic and are typically gleyed and mottled near the surface because of the high water table most of the growing season. The vegetation is characterized by a moderately dense to dense perennial graminoid layer dominated or codominated by Carex nebrascensis. Other graminoid species may be present such as Carex praegracilis, Calamagrostis stricta, Deschampsia cespitosa, Eleocharis palustris, Glyceria striata, Juncus arcticus ssp. littoralis, Schoenoplectus pungens, or Triglochin maritima. Forb cover is generally low, but can be high in moist locations. Scattered short shrubs may be present in some stands.

Diagnostic Characteristics: No Data Available

Rationale for Nominal Species or Physiognomic Features: No Data Available

Classification Comments: In the Black Hills, classification of stands was problematic due to identification problems with Carex nebrascensis and Carex aquatilis. The two are difficult to distinguish based on available keys and written descriptions (Marriott and Faber-Langendoen 2000).

Similar NVC Types: No Data Available
note: No Data Available
Physiognomy and Structure: No Data Available

Floristics: These wetlands are characterized by a moderately dense to dense perennial graminoid layer dominated or codominated by Carex nebrascensis (25-99% cover), that generally forms small- to medium-sized meadows. Stands often are nearly pure Carex nebrascensis, but a variety of other graminoid species may be present such as Carex aurea, Carex praegracilis, Calamagrostis stricta, Calamagrostis canadensis, Deschampsia cespitosa, Eleocharis palustris, Glyceria striata, Juncus arcticus ssp. littoralis (= Juncus balticus), Schoenoplectus pungens (= Scirpus pungens), or Triglochin maritima. Forb cover is generally low, but can be high in moist locations. Common forbs include Epilobium ciliatum, Eurybia integrifolia (= Aster integrifolius), Geum macrophyllum, Mentha arvensis, Mimulus glabratus, Heracleum maximum, and Ranunculus cymbalaria. Introduced species Poa pratensis, Poa palustris, Cirsium arvense, and Melilotus officinalis may also be common. Scattered shrubs Artemisia cana, Betula occidentalis, Ericameria nauseosa, Dasiphora fruticosa ssp. floribunda (= Pentaphylloides floribunda), Frangula betulifolia, sapling Populus tremuloides, Salix monticola, Salix exigua, and Salix brachycarpa may be occasionally present in some stands. In Nebraska, common species include Agrostis stolonifera, Carex hystericina, Carex pellita (= Carex lanuginosa), Eleocharis erythropoda, Equisetum spp., Juncus arcticus ssp. littoralis, Schoenoplectus pungens (= Scirpus pungens), and Triglochin spp. (Steinauer and Rolfsmeier 2003).

Dynamics:  In Montana, the Carex nebrascensis Community Type is considered a grazing-disclimax. Under season-long grazing, Carex nebrascensis increases in abundance, replacing former dominant species (Hansen et al. 1995). However, under extreme grazing conditions and a resulting drop in the water table, Juncus arcticus ssp. littoralis or Poa pratensis can eventually replace Carex nebrascensis. In Nevada, sites dominated by Carex nebrascensis are considered the Potential Natural Community (Manning and Padgett 1995), which appears to be the case in undisturbed stands in Colorado.
Environmental Description:  This wetland plant association occurs on the western Great Plains and throughout much of the western U.S. Elevation ranges from 1000-2800 m (3300-9200 feet). Stands form open meadows that occur along the margins of streambanks, flat floodplains, and lakes often forming a band along the alluvial terrace. Stands have also been sampled from marshy areas surrounding springs and below seeps on lower hillslopes. This association is often found on well-developed soil, but occurs on a wide variety of soil types ranging from saturated organics to Mollisols to Entisols. Soils tend to be fine-textured alluvium, ranging from sandy, silty loam, clay loam, or clay to organic and are typically gleyed and mottled near the surface because of the high water table most of the growing season.
Geographic Range: This sedge meadow type is widely distributed from the western Great Plains into the western mountains of the United States, ranging from South Dakota and Montana to possibly as far west as Washington, south to California and east to New Mexico. It is also known from Alberta, Canada.

Nations: CA,US

States/Provinces:  AB, AZ, CA, CO, ID, MT, NE, NM?, NV, OR, SD, UT, WA?, WY


Confidence Level: High

Confidence Level Comments: No Data Available
Grank: G4

Greasons: No Data Available
Type Name Database Code Classification Code
Class 2 Shrub & Herb Vegetation Class C02 2
Subclass 2.C Shrub & Herb Wetland Subclass S44 2.C
Formation 2.C.4 Temperate to Polar Freshwater Marsh, Wet Meadow & Shrubland Formation F013 2.C.4
Division 2.C.4.Nb Western North American Temperate Freshwater Marsh, Wet Meadow & Shrubland Division D031 2.C.4.Nb
Macrogroup 2.C.4.Nb.5 Sitka Alder - Booth''s Willow / Northwest Territory Sedge Montane Marsh, Wet Meadow & Shrubland Macrogroup M893 2.C.4.Nb.5
Group 2.C.4.Nb.5.b Sedge species - Reedgrass species Montane Wet Meadow & Marsh Group G521 2.C.4.Nb.5.b
Alliance A3805 Nebraska Sedge - Blister Sedge - Woolly Sedge Wet Meadow Alliance A3805 2.C.4.Nb.5.b
Association CEGL001813 Nebraska Sedge Wet Meadow CEGL001813 2.C.4.Nb.5.b
Concept Lineage: This type (CEGL001815) lumped into CEGL001813.

Predecessors: No Data Available

Obsolete Names: No Data Available

Obsolete Parents: No Data Available
Synonomy: = Carex nebrascensis - Catabrosa aquatica - Juncus arcticus ssp. ater Spring Wetland (Baker 1982b)
= Carex nebrascensis / Deschampsia cespitosa Plant Association (Johnston 1987)
= Carex nebrascensis (Sawyer et al. 2009) [45.130.01]
= Carex nebrascensis (Crowe and Clausnitzer 1997)
= Carex nebrascensis (Kovalchik 1987) [(p.100)]
= Carex nebrascensis (Durkin et al. 1995a)
= Carex nebrascensis (Durkin et al. 1994b)
= Carex nebrascensis (Kittel et al. 1999b)
= Carex nebrascensis (McCain and Christy 2005) [3 plots]
= Carex nebrascensis Association (Cooper and Cottrell 1990)
= Carex nebrascensis Association (Crowe et al. 2004)
= Carex nebrascensis Association (Christy 2004)
? Carex nebrascensis Community Type (Hall and Hansen 1997)
= Carex nebrascensis Community Type (Manning and Padgett 1995)
? Carex nebrascensis Community Type (Padgett et al. 1988b)
? Carex nebrascensis Community Type (Youngblood et al. 1985b)
= Carex nebrascensis Community Type (Youngblood et al. 1985a)
? Carex nebrascensis Community Type (Hansen et al. 1995)
= Carex nebrascensis Community Type (Padgett et al. 1989)
= Carex nebrascensis Herbaceous Vegetation (Carsey et al. 2003a)
= Carex nebrascensis Herbaceous Vegetation (Keeler-Wolf et al. 2012)
? Carex nebrascensis Herbaceous Vegetation (Kittel et al. 1996)
= Carex nebrascensis Herbaceous Vegetation (Faber-Langendoen 2001)
? Carex nebrascensis Herbaceous Vegetation (Kittel et al. 1994)
= Carex nebrascensis Herbaceous Vegetation (Marriott and Faber-Langendoen 2000)
= Nebraska Sedge (Carex nebrascensis) Community (Jones and Walford 1995)
= Nebraska sedge (Carex nebrascensis) Plant Association (Kittel et al. 1999a)
= Western Streamside Wet Meadow (Steinauer and Rolfsmeier 2003)
< Wet Meadow (Hall 1973)
Concept Author(s): J. Drake

Author of Description: J. Drake, D. Faber-Langendoen and K.A. Schulz

Acknowledgements: No Data Available

Version Date: 08-14-17
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