Print Report
CEGL003407 Populus balsamifera ssp. trichocarpa - Alnus rubra / Rubus spectabilis Riparian Forest
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Black Cottonwood - Red Alder / Salmonberry Riparian Forest
Colloquial Name: No Data Available
Hierarchy Level: Association
Type Concept: This association occurs on well-developed floodplains of lowland rivers in western Oregon, western Washington, and coastal British Columbia. It is flooded periodically, but typically not every year, by overbank floods, upon which its long-term persistence in the landscape is probably dependent. Soils are alluvium that are well-drained. The relatively closed deciduous tree canopy is dominated in the uppermost layer by Populus balsamifera ssp. trichocarpa up to about 50 m tall. A subcanopy layer of Alnus rubra is present and variable in percent cover. Scattered conifers are sometimes present, especially in lower layers (e.g., Abies grandis, Thuja plicata). The understory is dominated by the deciduous shrub Rubus spectabilis, which can be quite dense. Several other shrubs may be present in lesser amounts. The herb layer is variable in quantity and composition. Some typical species include Tolmiea menziesii, Stachys chamissonis var. cooleyae, Athyrium filix-femina, Circaea alpina, Claytonia sibirica, Urtica dioica, and Polystichum munitum. The dominance of Populus balsamifera ssp. trichocarpa and Rubus spectabilis, combined with a greater abundance of Alnus rubra than Acer macrophyllum, is probably diagnostic.
Diagnostic Characteristics: No Data Available
Rationale for Nominal Species or Physiognomic Features: No Data Available
Classification Comments: Corresponds with two units described from British Columbia: cottonwood-willow and cottonwood-red-osier dogwood. Described from data in Willamette Valley, Oregon. No data from Washington.
Similar NVC Types: No Data Available
note: No Data Available
Physiognomy and Structure: No Data Available
Floristics: No Data Available
Dynamics: No Data Available
Environmental Description: No Data Available
Geographic Range: This association is found in scattered locations of western Oregon, Washington, and southern British Columbia.
Nations: CA?,US
States/Provinces: BC?, OR, WA
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.684232
Confidence Level: Moderate
Confidence Level Comments: No Data Available
Grank: G2G3
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 | CEGL003407 Black Cottonwood - Red Alder / Salmonberry Riparian Forest | CEGL003407 | 1.B.3.Ng.1.d |
Concept Lineage: included here
Predecessors: No Data Available
Obsolete Names: No Data Available
Obsolete Parents: No Data Available
Synonomy: = Populus balsamifera ssp. trichocarpa - Alnus rubra - Rubus spectabilis (MacKenzie and Moran 2004)
- Green, R. N., and K. Klinka. 1994. A field guide to site interpretation for the Vancouver Forest Region. British Columbia Ministry of Forests. ISSN 0229-1622 Land Management Handbook 28. 285 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.
- MacKenzie, W. H., and J. R. Moran. 2004. Wetlands of British Columbia: A guide to identification. Land Management Handbook No. 52. Research Branch, British Columbia Ministry of Forests and Lands, Victoria, BC. 287 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.
- Titus, J. H., and J. A. Christy. 1997. Willamette Valley riparian zones and wetlands. Unpublished report. 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.