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CEGL003390 Fraxinus latifolia - (Populus balsamifera ssp. trichocarpa) / Cornus sericea Riparian Forest
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Oregon Ash - (Black Cottonwood) / Red-osier Dogwood Riparian Forest
Colloquial Name: No Data Available
Hierarchy Level: Association
Type Concept: This community type occurs in the overflow plain segment of the Columbia River, from Puget Island to the gorge of Washington. It also occurs along all major streams in the southern Puget Trough and the Willamette Valley, Oregon. This community type occupies slightly higher topographic positions on floodplain terraces and natural levees along river channels. Portions receive seasonal flooding. Most of the stands, especially up-river from Longview, appear to be located above the bottomlands that would have been flooded for prolonged periods prior to flood control dams. Soils are silt-loams. This community type is characterized by the codominance of Fraxinus latifolia and Populus balsamifera ssp. trichocarpa. The relative dominance of the two tree species is highly variable. Cornus sericea typically dominates the shrub layer but is sometimes replaced by Sambucus racemosa. In most stands, the understory has been degraded by grazing and introduced Phalaris arundinacea making it difficult to determine the original understory components. All stands are second-growth, except for a few scattered individual old-growth trees.
Diagnostic Characteristics: No Data Available
Rationale for Nominal Species or Physiognomic Features: No Data Available
Classification Comments: No Data Available
Similar NVC Types: No Data Available
note: No Data Available
Physiognomy and Structure: No Data Available
Floristics: This community type is characterized by the codominance of Fraxinus latifolia and Populus balsamifera ssp. trichocarpa (= Populus trichocarpa). The relative dominance of the two tree species is highly variable. Cornus sericea (= Cornus stolonifera) typically dominates the shrub layer but is sometimes replaced by Sambucus racemosa. In most stands, the understory has been degraded by grazing and introduced Phalaris arundinacea making it difficult to determine the original understory components. All stands are second-growth, except for a few scattered individual old-growth trees.
Dynamics: No Data Available
Environmental Description: No Data Available
Geographic Range: No Data Available
Nations: US
States/Provinces: OR, WA
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.688875
Confidence Level: Low
Confidence Level Comments: No Data Available
Grank: G4
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 | CEGL003390 Oregon Ash - (Black Cottonwood) / Red-osier Dogwood Riparian Forest | CEGL003390 | 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 - Populus trichocarpa / Cornus stolonifera / Urtica dioica community type (Kunze 1994) [(p. 52)]
- Christy, J. A., and J. A. Putera. 1993. Lower Columbia River Natural Area Inventory, 1992. Oregon Natural Heritage Program, Portland. 75 pp.
- Copass, C., and T. Ramm-Granberg. 2016b. Vancouver National Historic Reserve vegetation inventory and mapping project. Natural Resource Report NPS/NCCN/NRR--2016/1128. National Park Service, Fort Collins, CO. 90 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.
- Smith, S., and S. Smith. 1976. Vegetative types and landform classes. Pages 40-268 in: J. Tabor, editor. Inventory of riparian habitats and associated wildlife along the Columbia River. Final report prepared for Oregon State University Cooperative Wildlife Research Unit, Corvallis. 771 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.