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CEGL003365 Fraxinus latifolia / Carex deweyana - Urtica dioica Riparian Forest
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Oregon Ash / Dewey''s Sedge - Stinging Nettle Riparian Forest
Colloquial Name: No Data Available
Hierarchy Level: Association
Type Concept: This mid-seral association occurs on floodplains along the middle reaches of the lower Columbia River in Oregon and Washington, and perhaps other large rivers in western Washington. It was probably widespread on bottomlands between Longview and Skamania, and may have also occurred in the Willamette Valley. Soils are hydric silt loams and are subject to extended winter flooding and midsummer drying. Topography is flat with broad depressions. Historically these sites were inundated for half the summer, but now only deeper depressions retain water until late spring or early summer. Fraxinus latifolia is the dominant tree, with few or no Populus balsamifera ssp. trichocarpa present. The herb and shrub layers are sparse and reflect the long residence time of seasonal floodwater. Urtica dioica, Carex leptopoda, and Carex obnupta dominate the understory.
Diagnostic Characteristics: No Data Available
Rationale for Nominal Species or Physiognomic Features: No Data Available
Classification Comments: Washington has one stand of Fraxinus latifolia / Carex leptopoda without Urtica dioica in Lewis County that looks like it which may have grown up on a former wet prairie. It is a different environment than described here and probably not the same association.
Similar NVC Types: No Data Available
note: No Data Available
Physiognomy and Structure: No Data Available
Floristics: Fraxinus latifolia is the dominant tree, with few or no Populus balsamifera ssp. trichocarpa present. The herb and shrub layers are sparse and reflect the long residence time of seasonal floodwater. Urtica dioica, Carex leptopoda (= Carex deweyana ssp. leptopoda), and Carex obnupta dominate the understory.
Dynamics: No Data Available
Environmental Description: This mid-seral association occurs on floodplains along the middle reaches of the lower Columbia River in Oregon and Washington, and perhaps other large rivers in western Washington. It was probably widespread on bottomlands between Longview and Skamania, and may have also occurred in the Willamette Valley. Soils are hydric silt loams and are subject to extended winter flooding and midsummer drying. Topography is flat with broad depressions. Historically these sites were inundated for half the summer, but now only deeper depressions retain water until late spring or early summer.
Geographic Range: This association occurs along the middle reaches of the lower Columbia River in Oregon and Washington, and perhaps other large rivers in western Washington.
Nations: US
States/Provinces: OR, WA
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.688912
Confidence Level: Low
Confidence Level Comments: No Data Available
Grank: G1
Greasons: No Data Available
| Type | Name | Database Code | Classification Code |
|---|---|---|---|
| Class | 1 Forest & Woodland Class | C01 | 1 |
| Subclass | 1.B Temperate & Boreal Forest & Woodland Subclass | S15 | 1.B |
| Formation | 1.B.3 Temperate Flooded & Swamp Forest Formation | F026 | 1.B.3 |
| Division | 1.B.3.Ng Vancouverian Flooded & Swamp Forest Division | D193 | 1.B.3.Ng |
| Macrogroup | 1.B.3.Ng.1 Vancouverian Flooded & Swamp Forest Macrogroup | M035 | 1.B.3.Ng.1 |
| Group | 1.B.3.Ng.1.d Sitka Spruce - Black Cottonwood - Oregon Ash Lowland Riparian Forest Group | G851 | 1.B.3.Ng.1.d |
| Alliance | A3743 Oregon Ash - Black Cottonwood - Alder species Riparian Forest Alliance | A3743 | 1.B.3.Ng.1.d |
| Association | CEGL003365 Oregon Ash / Dewey''s Sedge - Stinging Nettle Riparian Forest | CEGL003365 | 1.B.3.Ng.1.d |
Concept Lineage: No Data Available
Predecessors: No Data Available
Obsolete Names: No Data Available
Obsolete Parents: No Data Available
Synonomy: = Fraxinus latifolia / Carex deweyana - Urtica dioica ssp. gracilis (McCain and Christy 2005) [2 plots]
= Fraxinus latifolia / Carex deweyana - Urtica dioica ssp. gracilis Association (Christy 2004)
= Fraxinus latifolia / Urtica dioica community type (Kunze 1994) [(p. 52)]
= Fraxinus latifolia / Carex deweyana - Urtica dioica ssp. gracilis Association (Christy 2004)
= Fraxinus latifolia / Urtica dioica community type (Kunze 1994) [(p. 52)]
- Christy, J. A. 2004. Native freshwater wetland plant associations of northwestern Oregon. Oregon Natural Heritage Information Center, Oregon State University, Portland, OR.
- Christy, J. A., and J. A. Putera. 1993. Lower Columbia River Natural Area Inventory, 1992. Oregon Natural Heritage Program, Portland. 75 pp.
- Kagan, J. S., J. A. Christy, M. P. Murray, and J. A. Titus. 2004. Classification of native vegetation of Oregon. January 2004. Oregon Natural Heritage Information Center, Portland. 52 pp.
- Kunze, L. M. 1994. Preliminary classification of native, low elevation, freshwater wetland vegetation in western Washington. Washington State Department of Natural Resources, Natural Heritage Program. 120 pp.
- McCain, C., and J. A. Christy. 2005. Field guide to riparian plant communities in northwestern Oregon. Technical Paper R6-NR-ECOL-TP-01-05. USDA Forest Service, Pacific Northwest Region, Portland. 357 pp.
- Titus, J. H., J. A. Christy, D. Vander Schaaf, J. S. Kagan, and E. R. Alverson. 1996. Native wetland, riparian, and upland plant communities and their biota in the Willamette Valley, Oregon. Report to the Environmental Protection Agency, Region X, Seattle, WA. Willamette Basin Geographic Initiative. Oregon Natural Heritage Program, The Nature Conservancy, Portland, OR.
- WNHP [Washington Natural Heritage Program]. 2018. Unpublished data files. Washington Natural Heritage Program, Department of Natural Resources, Olympia, WA.
- Western Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Boulder, CO.