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CEGL000626 Acer negundo / Equisetum arvense Riparian Forest
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Box-elder / Field Horsetail Riparian Forest
Colloquial Name: No Data Available
Hierarchy Level: Association
Type Concept: This plant association occurs in the Overthrust Mountains of northeastern Utah, in northwestern Colorado and possibly in Idaho and Wyoming. Stands generally occur on the banks of low-gradient streams that experience periodic flooding and scouring that remove non-rhizomatous species. The association occurs in narrow valleys below 2000 m in elevation. Stream gradients are low, terraces slope gently, the water table is high through at least part of the growing season, and soils are generally sandy and derived from alluvium. Acer negundo dominates the open overstory with a dense understory of Equisetum arvense. Canopy cover is at least 20%. Shrubs occur in patches and may include Salix exigua, Salix monticola, Tamarix ramosissima, Rhus trilobata, and Sambucus nigra ssp. cerulea. Herbaceous species are mostly crowded out by the Equisetum; there may be occasional stems of Maianthemum stellatum, Mentha arvensis, Clematis ligusticifolia, Elymus glaucus, and the introduced grasses Agrostis stolonifera and Poa pratensis.
Diagnostic Characteristics: No Data Available
Rationale for Nominal Species or Physiognomic Features: No Data Available
Classification Comments: Classification is based on field data collected in 1989 from the Wasatch Mountains of Utah and in 2002 in Dinosaur National Park in Utah and Colorado.
Similar NVC Types: No Data Available
note: No Data Available
Physiognomy and Structure: No Data Available
Floristics: Acer negundo dominates the open overstory with a dense understory of Equisetum arvense. Canopy cover is at least 20%. Shrubs occur in patches and may include Salix exigua, Salix monticola, Tamarix ramosissima, Rhus trilobata, and Sambucus nigra ssp. cerulea. Herbaceous species are mostly crowded out by the Equisetum; there may be occasional stems of Maianthemum stellatum (= Smilacina stellata), Mentha arvensis, Clematis ligusticifolia, Elymus glaucus, and the introduced grasses Agrostis stolonifera and Poa pratensis.
Dynamics: These stands generally occur along low-gradient streams that experience periodic flooding and scouring that only Equisetum spp. can withstand.
Environmental Description: This plant association occurs in the Overthrust Mountains of northeastern Utah, in northwestern Colorado and possibly in Idaho and Wyoming. The association occurs on low-gradient stream terraces in narrow valleys below 2000 m in elevation. Stream gradients are low, terraces slope gently, the water table is high through at least part of the growing season, and soils are generally sandy and derived from alluvium.
Geographic Range: The association is known to occur in the Overthrust Mountains of northeastern Utah, northwestern Colorado and possibly Wyoming and Idaho.
Nations: US
States/Provinces: CO, ID?, UT, WY?
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.687613
Confidence Level: Low - Poorly Documented
Confidence Level Comments: No Data Available
Grank: G2?
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 | A4154 Box-elder - Thinleaf Alder - Red-osier Dogwood Riparian Woodland Alliance | A4154 | 1.B.3.Nc.1.a |
| Association | CEGL000626 Box-elder / Field Horsetail Riparian Forest | CEGL000626 | 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: No Data Available
- 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.
- 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/]
- Coles, J., D. Cogan, D. Salas, A. Wight, G. Wakefield, J. Von Loh, and A. Evenden. 2008a. Vegetation classification and mapping project report, Dinosaur National Monument. Natural Resource Technical Report NPS/NCPN/NRTR-2008/112. National Park Service, Fort Collins, CO. 814 pp.
- 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).
- 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.
- Western Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Boulder, CO.