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CEGL001152 Alnus incana / Spiraea douglasii Wet Shrubland
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Gray Alder / Rose Spirea Wet Shrubland
Colloquial Name: No Data Available
Hierarchy Level: Association
Type Concept: This association occurs in Washington, Oregon and California. This riparian tall-shrub (or small-tree) community is common in eastern Oregon at elevations of 670-1740 m (2200-5700 feet). Stands are found on a variety of riparian fluvial surfaces. Soil textures vary from loam to sandy loam grading into cobbles and gravels. Soils are well-drained, but remain wet-moist because of the proximity of water. The shrub canopy is dominated by Alnus incana and Spiraea douglasii. Forb cover is typified by Maianthemum stellatum, Galium triflorum, and Achillea millefolium. Important graminoids are Carex angustata, Glyceria striata, and Carex disperma. Athyrium filix-femina is also common.
Diagnostic Characteristics: No Data Available
Rationale for Nominal Species or Physiognomic Features: No Data Available
Classification Comments: This association is defined as a PNV vegetation type. Identified in a recent classification of about 2000 plots throughout eastern Oregon and probably western Idaho.
Similar NVC Types: No Data Available
note: No Data Available
Physiognomy and Structure: No Data Available
Floristics: The shrub canopy is dominated by Alnus incana (42% cover) and Spiraea douglasii (18% cover). Forb cover averages 29%, and is typified by Maianthemum stellatum (4%), Galium triflorum (2%), and Achillea millefolium (1%). Important graminoids are Carex angustata (= Carex eurycarpa) (5%), Glyceria striata (= Glyceria elata) (4%), and Carex disperma (3%). Athyrium filix-femina (2%) is also common.
Dynamics: No Data Available
Environmental Description: This riparian tall-shrub (or small-tree) community is common in eastern Oregon at elevations of 670-1740 m (2200-5700 feet). Stands are found on a variety of riparian fluvial surfaces. Soil textures vary from loam to sandy loam grading into cobbles and gravels. Soils are well-drained, but remain wet-moist because of the proximity of water.
Geographic Range: Described from eastern Oregon and Washington from mid elevations in the mountains, California, and assumed to be present in adjacent Idaho.
Nations: US
States/Provinces: CA, ID, OR, WA
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.687472
Confidence Level: Low
Confidence Level Comments: No Data Available
Grank: G3
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.d Willow species - Alder species - Water Birch Riparian & Seep Shrubland Group | G527 | 2.C.4.Nb.5.d |
| Alliance | A3771 Gray Alder - Green Alder Wet Shrubland Alliance | A3771 | 2.C.4.Nb.5.d |
| Association | CEGL001152 Gray Alder / Rose Spirea Wet Shrubland | CEGL001152 | 2.C.4.Nb.5.d |
Concept Lineage: No Data Available
Predecessors: No Data Available
Obsolete Names: No Data Available
Obsolete Parents: No Data Available
Synonomy: = Alnus incana - Spiraea douglasii (Kovalchik 1987) [(p.71)]
= Alnus incana - Spiraea douglasii Association (Crowe et al. 2004)
= Alnus incana - Spiraea douglasii Association (Kovalchik 1993) [(p.122)]
= Alnus incana - Spiraea douglasii Association (Crowe et al. 2004)
= Alnus incana - Spiraea douglasii Association (Kovalchik 1993) [(p.122)]
- Bourgeron, P. S., and L. D. Engelking, editors. 1994. A preliminary vegetation classification of the western United States. Unpublished report. The Nature Conservancy, Western Heritage Task Force, Boulder, CO. 175 pp. plus appendix.
- Crowe, E. A., B. L. Kovalchik, and M. J. Kerr. 2004. Riparian and wetland vegetation of central and eastern Oregon. Oregon Natural Heritage Information Center, Institute for Natural Resources, Oregon State University, Portland. 473 pp. [http://oregonstate.edu/ornhic/ publications.html]
- IDCDC [Idaho Conservation Data Center]. 2005. Wetland and riparian plant associations in Idaho. Idaho Conservation Data Center, Idaho Department of Fish and Game, Boise. [http://fishandgame.idaho.gov/tech/CDC/ecology/wetland_riparian_assoc.cfm] (accessed 14 June 2005).
- 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.
- Kovalchik, B. L. 1987. Riparian zone associations - Deschutes, Ochoco, Fremont, and Winema national forests. Technical Paper 279-87. USDA Forest Service, Pacific Northwest Region, Portland, OR. 171 pp.
- Kovalchik, B. L. 1993. Riparian plant associations on the national forests of eastern Washington - Draft version 1. USDA Forest Service, Colville National Forest, Colville, WA. 203 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.