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CEGL002844 Populus balsamifera ssp. trichocarpa / Cornus sericea / Carex obnupta Riparian Forest
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Black Cottonwood / Red-osier Dogwood / Slough Sedge Riparian Forest
Colloquial Name: No Data Available
Hierarchy Level: Association
Type Concept: This small-patch forest community occurs on sites with strongly fluctuating water tables in coastal British Columbia and western Washington. The range of the plant community occurs in the Georgia Basin of coastal British Columbia and in the Puget Trough of Washington at elevations of 0 to 150 m. This deciduous forest has a moderate to closed canopy with a well-developed shrubby understory and a moderately well-developed herb layer, often dominated by Carex obnupta, and a moderately well-developed moss layer dominated by Eurhynchium praelongum. High cover of Populus balsamifera characterizes the overstory. Abies grandis or Alnus rubra often occur in smaller amounts also, and the latter may codominate locally. The subcanopy tree Malus fusca is frequent and contributes substantial cover. The well-developed understory is dominated by shrubs, including high cover of Cornus sericea, Symphoricarpos albus, and Oemleria cerasiformis and low to moderate cover of Frangula purshiana. The moderately well-developed herb layer is often dominated by high cover of Carex obnupta. Low to moderate cover of Carex deweyana, Polystichum munitum, Rubus ursinus, and Maianthemum dilatatum is often found in the herb layer. The moderately well-developed but floristically simple moss layer is dominated by high cover of Eurhynchium praelongum.
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: The overstory of this deciduous plant community has high cover of Populus balsamifera and often with moderate cover of Abies grandis and/or Alnus rubra. High cover of shrubs, including Cornus sericea (= Cornus stolonifera), Symphoricarpos albus, Malus fusca, and Oemleria cerasiformis, and low to moderate cover of Frangula purshiana (= Rhamnus purshiana), sometimes with low to moderate cover, Philadelphus lewisii, Rubus spectabilis, and other species result in a dense shrub layer. Moderate to high cover of Carex obnupta often predominates in the herb layer. Low to moderate cover of Carex deweyana, Polystichum munitum, Rubus ursinus, and Maianthemum dilatatum also characterizes the herb layer. The moderately well-developed but floristically simple moss layer is dominated by high cover of Eurhynchium praelongum, often with low cover of Leucolepis acanthoneuron.
Dynamics: This is a mid- to late-successional edaphic forest community. Stand-replacing events were likely infrequent. Within mature and old forests, small gaps result from the death of single trees or small groups of trees due to windthrow, root-rots, bark beetles, or other insect and disease pests. Too few occurrences remain to determine more specifically the stand dynamics of this ecosystem type.
Environmental Description: This small-patch forest community occurs on level sites with strongly fluctuating water tables where the water table is at or above the soil surface in winter months, gradually lowering to well below the surface in the driest months of the year. Soils range from subhygric to subhydric and are usually rich (to medium) in nutrients. Soils are variably textured with variable amounts of clay, silt and sand and are typically classified as Humic Gleysols or Gleysols. These sites occur at elevations from 0 to 150 m within the Georgia Basin of coastal British Columbia and southward to the San Juan Islands and Puget Trough of western Washington.
Geographic Range: No Data Available
Nations: CA,US
States/Provinces: BC, OR, WA
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.787976
Confidence Level: Low
Confidence Level Comments: No Data Available
Grank: GNR
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 | CEGL002844 Black Cottonwood / Red-osier Dogwood / Slough Sedge Riparian Forest | CEGL002844 | 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: = Populus balsamifera spp. trichocarpa / Cornus sericea / Carex obnupta Forest Association (Rocchio et al. 2012)
= Populus balsamifera spp. trichocarpa/Cornus sericea/Carex obnupta (Meidinger et al. 2005) [PNWCOAST_113]
= CDF mm /14 (Green and Klinka 1994)
= Populus balsamifera spp. trichocarpa/Cornus sericea/Carex obnupta (Meidinger et al. 2005) [PNWCOAST_113]
= CDF mm /14 (Green and Klinka 1994)
- BCCDC [British Columbia Conservation Data Centre]. 2018. Unpublished data on file at British Columbia Conservation Data Center. Ministry of Environment, Victoria.
- BCMFRB [British Columbia Ministry of Forests Research Branch]. 2003a. Vegetation classification hierarchy: BECMaster May 2003. British Columbia Ministry of Forests, Victoria, BC.
- BCMFRB [British Columbia Ministry of Forests Research Branch]. 2005a. Vegetation classification hierarchy: BECMaster 2005. British Columbia Ministry of Forests, Victoria, BC.
- BCMFRB [British Columbia Ministry of Forests Research Branch]. 2005b. Vegetation and environment plot data: BECMaster January 2005. British Columbia Ministry of Forests, Victoria, BC.
- BCMWLAP [British Columbia Ministry of Water, Land and Air Protection]. 2004a. Grizzly Bear. In: Accounts and measures for managing identified wildlife. British Columbia Ministry of Water, Land and Air Protection, Victoria, BC. 52 pp.
- BCMWLAP [British Columbia Ministry of Water, Land and Air Protection]. 2004e. Keen''s Long-eared Myotis. In: Accounts and measures for managing identified wildlife. British Columbia Ministry of Water, Land and Air Protection, Victoria, BC. 52 pp.
- Brown, K. J., and R. J. Hebda. 1999. Long-term fire incidence in coastal forests of British Columbia. Northwest Science 73:41-43.
- COSEWIC [Committee on the Status of Endangered Wildlife in Canada]. 2002. COSEWIC assessment and update status report on the Western Screech-owl Otus kennicottii in Canada. Committee on the Status of Endangered Wildlife in Canada, Ottawa. vi + 31 pp.
- 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.
- Meidinger, D., C. Chappell, C. Cadrin, G. Kittel, C. McCain, K. Boggs, J. Kagan, G. Cushon, A. Banner, and T. DeMeo. 2005. International Vegetation Classification of the Pacific Northwest: International correlation of temperate coastal forest plant associations of Oregon, Washington, British Columbia and Alaska. Contributors: B.C. Ministry of Forests, USDA Forest Service, B.C. Conservation Data Centre, Alaska Natural Heritage Program, Washington Natural Heritage Program, and Oregon Natural Heritage Information Center.
- Rocchio, F. J., R. C. Crawford, and C. C. Thompson. 2012. San Juan Island National Historical Park vegetation classification and mapping project. Natural Resource Report NPS/NCCN/NRR--2012/603. National Park Service, Fort Collins, CO. 188 pp.
- 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.