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CEGL002641 Populus angustifolia - Pseudotsuga menziesii Riparian Woodland
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Narrowleaf Cottonwood - Douglas-fir Riparian Woodland
Colloquial Name: No Data Available
Hierarchy Level: Association
Type Concept: The riparian woodland association is found along small active streams in rocky, cool canyons and valleys between 2000-2700 m in Colorado, Utah, and Nevada. It occurs naturally in small stands on wash bottoms, streambanks, cobble bars and terraces where a northern or protected aspect creates cool micro-environments. A mix of Pseudotsuga menziesii (10-40% cover) and Populus angustifolia (10-60% cover) in the upper canopy is diagnostic, though they may be joined by other conifer species. Shrub cover is typically low, but highly variable and diverse, and may include Acer glabrum, Salix exigua, Alnus incana, Betula occidentalis, Salix lucida ssp. caudata, Clematis ligusticifolia, Ribes cereum, and Quercus gambelii. Herbaceous cover can be sparse and usually limited by heavy shade. This association represents a transition from lower montane to upper montane habitats. Nearly all stands observed have an adjacent north-facing slope with Pseudotsuga menziesii forests. These woodland are dependent upon flooding disturbance for regeneration of Populus angustifolia.
Diagnostic Characteristics: No Data Available
Rationale for Nominal Species or Physiognomic Features: No Data Available
Classification Comments: Similar stands are found in Utah and Nevada (reported by Manning and Padgett 1995)
Similar NVC Types: No Data Available
note: No Data Available
Physiognomy and Structure: No Data Available
Floristics: A mix of Pseudotsuga menziesii (10-40% cover) and Populus angustifolia (10-60% cover) in the upper canopy is diagnostic, though they may be joined by other conifer species. Shrub cover is typically low, but highly variable and diverse, and may include Acer glabrum, Salix exigua, Alnus incana, Betula occidentalis, Salix lucida ssp. caudata, Clematis ligusticifolia, Ribes cereum, and Quercus gambelii. Herbaceous cover can be sparse and usually limited by heavy shade. This association represents a transition from lower montane to upper montane habitats. Nearly all stands observed have an adjacent north-facing slope with Pseudotsuga menziesii forests.
Dynamics: These woodland are dependent upon flooding disturbance for regeneration of Populus angustifolia.
Environmental Description: The riparian woodland association is found along small active streams in rocky, cool canyons and valleys between 2000-2700 m in Colorado, Utah, and Nevada. It occurs naturally in small stands on wash bottoms, streambanks, cobble bars and terraces where a northern or protected aspect creates cool micro-environments.
Geographic Range: Known to occur in the mountainous regions of Colorado, Utah and Nevada.
Nations: US
States/Provinces: CO, NV?, UT
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.687195
Confidence Level: Low
Confidence Level Comments: No Data Available
Grank: G3
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.Nc Rocky Mountain-Great Basin Montane Flooded & Swamp Forest Division | D195 | 1.B.3.Nc |
| Macrogroup | 1.B.3.Nc.1 Engelmann Spruce - Narrowleaf Cottonwood / Red-osier Dogwood Riparian & Swamp Forest Macrogroup | M034 | 1.B.3.Nc.1 |
| Group | 1.B.3.Nc.1.a Engelmann Spruce - Blue Spruce - Narrowleaf Cottonwood Riparian & Swamp Forest Group | G506 | 1.B.3.Nc.1.a |
| Alliance | A3759 Narrowleaf Cottonwood Riparian Forest Alliance | A3759 | 1.B.3.Nc.1.a |
| Association | CEGL002641 Narrowleaf Cottonwood - Douglas-fir Riparian Woodland | CEGL002641 | 1.B.3.Nc.1.a |
Concept Lineage: No Data Available
Predecessors: No Data Available
Obsolete Names: No Data Available
Obsolete Parents: No Data Available
Synonomy: = Populus angustifolia - Pseudotsuga menziesii Woodland (Carsey et al. 2003a)
- CNHP [Colorado Natural Heritage Program]. 2006-2017. Tracked natural plant communities. Colorado Natural Heritage Program, Colorado State University, Fort Collins. [https://cnhp.colostate.edu/ourdata/trackinglist/plant_communities/]
- Carsey, K., G. Kittel, K. Decker, D. J. Cooper, and D. Culver. 2003a. Field guide to the wetland and riparian plant associations of Colorado. Colorado Natural Heritage Program, Fort Collins, CO.
- Hansen, P. L., R. D. Pfister, K. Boggs, B. J. Cook, J. Joy, and D. K. Hinckley. 1995. Classification and management of Montana''s riparian and wetland sites. Miscellaneous Publication No. 54. Montana Forest and Conservation Experiment Station, School of Forestry, University of Montana. 646 pp. plus posters.
- Johnston, B. C. 1987. Plant associations of Region Two: Potential plant communities of Wyoming, South Dakota, Nebraska, Colorado, and Kansas. R2-ECOL-87-2. USDA Forest Service, Rocky Mountain Region. Lakewood, CO. 429 pp.
- Kittel, G., E. Van Wie, M. Damm, R. Rondeau, S. Kettler, and J. Sanderson. 1999a. A classification of the riparian plant associations of the Rio Grande and Closed Basin watersheds, Colorado. Unpublished report prepared by the Colorado Natural Heritage Program, Colorado State University, Fort Collins.
- Kittel, G., R. Rondeau, and A. McMullen. 1996. A classification of the riparian vegetation of the Lower South Platte and parts of the Upper Arkansas River basins, Colorado. Submitted to Colorado Department of Natural Resources and the Environmental Protection Agency, Region VIII. Prepared by Colorado Natural Heritage Program, Fort Collins. 243 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.
- Manning, M. E., and W. G. Padgett. 1995. Riparian community type classification for Humboldt and Toiyabe national forests, Nevada and eastern California. USDA Forest Service, Intermountain Region. 306 pp.
- Padgett, W. G., A. P. Youngblood, and A. H. Winward. 1989. Riparian community type classification of Utah and southeastern Idaho. Research Paper R4-ECOL-89-0. USDA Forest Service, Intermountain Forest and Range Experiment Station, Ogden, UT.
- Richard, C., G. Kittel, and S. Kettler. 1996. A classification of the riparian vegetation of the San Juan National Forest. Draft 1 report. Colorado Natural Heritage Program, Colorado State University, Fort Collins.
- Western Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Boulder, CO.