Print Report
A3813 Carex densa Wet Meadow Alliance
Type Concept Sentence: This alliance covers wet meadows dominated by the sedge Carex densa in wet and boggy places of the Pacific Northwest.
Common (Translated Scientific) Name: Dense Sedge Wet Meadow Alliance
Colloquial Name: Pacific Northwest Dense Sedge Wet Meadow
Hierarchy Level: Alliance
Type Concept: This alliance consists of wet meadows dominated by Carex densa in wet and boggy places of the Pacific Northwest. Stands are dominated by Carex densa with associated species that include Carex unilateralis, Deschampsia cespitosa, Juncus effusus, Juncus ensifolius, Juncus tenuis, and others.
Diagnostic Characteristics: Wet meadows dominated by sedges Carex densa.
Rationale for Nominal Species or Physiognomic Features: No Data Available
Classification Comments: The associations listed here are from Oregon and Washington, for which there are no descriptions. There are likely undescribed associations from California and British Columbia (and possibly further east) that belong in this alliance.
Similar NVC Types: No Data Available
note: No Data Available
Physiognomy and Structure: Herbaceous sod-forming meadows less than 1 m in height.
Floristics: These wet meadows are dominated by Carex densa; associated species include Carex unilateralis, Deschampsia cespitosa, Juncus effusus, Juncus ensifolius, Juncus tenuis, and others.
Dynamics: No Data Available
Environmental Description: Carex densa grows in wet meadows, remnant prairies, and on hummocks of intertidal marshes. Habitats are strongly influenced by fluctuating water levels which may reduce competition from other plants. Carex densa occurs from sea level to 460 m (0-1500 feet) elevation. Elevation range in Washington is 60-165 m (160-540 feet).
Geographic Range: This alliance is currently known from Oregon and Washington but is expected to occur in California and Canada. Carex densa occurs in the coastal mountains from San Diego County, California, north to Oregon, chiefly west of the Sierra Nevada and Cascade summits and is peripheral in Washington.
Nations: CA?,US
States/Provinces: BC?, CA?, OR, WA
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.899865
Confidence Level: Low - Poorly Documented
Confidence Level Comments: No Data Available
Grank: GNR
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 | A3813 Dense Sedge Wet Meadow Alliance | A3813 | 2.C.4.Nb.5.b |
| Association | CEGL003455 Dense Sedge - Tufted Hairgrass Wet Prairie | CEGL003455 | 2.C.4.Nb.5.b |
| Association | CEGL003456 Dense Sedge - Common Spikerush Wet Prairie | CEGL003456 | 2.C.4.Nb.5.b |
Concept Lineage: No Data Available
Predecessors: No Data Available
Obsolete Names: No Data Available
Obsolete Parents: No Data Available
Synonomy: ? Carex densa (Dense sedge marshes) Provisional Alliance (Sawyer et al. 2009) [45.165.00]
? Carex densa Provisional Herbaceous Alliance (CNPS 2017) [45.165.00]
? Carex densa Provisional Herbaceous Alliance (CNPS 2017) [45.165.00]
- CNPS [California Native Plant Society]. 2015-2017. A manual of California vegetation [online]. California Native Plant Society, Sacramento, CA. [http://vegetation.cnps.org/].
- Camp, P., and J. G. Gamon, editors. 2011. Field guide to the rare plants of Washington. Washington Natural Heritage Program and Washington State Department of Natural Resources, Olympia.
- Faber-Langendoen, D., J. Drake, M. Hall, G. Kittel, S. Menard, C. Nordman, M. Pyne, M. Reid, M. Russo, K. Schulz, L. Sneddon, K. Snow, and J. Teague. 2013-2019b. Screening alliances for induction into the U.S. National Vegetation Classification: Part 1 - Alliance concept review. NatureServe, Arlington, VA.
- Sawyer, J. O., T. Keeler-Wolf, and J. Evens. 2009. A manual of California vegetation. Second edition. California Native Plant Society, Sacramento CA. 1300 pp.