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CEGL000942 Populus fremontii - Fraxinus velutina Riparian Woodland
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Fremont Cottonwood - Velvet Ash Riparian Woodland
Colloquial Name: No Data Available
Hierarchy Level: Association
Type Concept: This is a lowland forested riparian association known from central and southeastern Arizona, southwestern New Mexico and southwestern Utah. Elevations range from 1200-1550 m. Sites are typically rocky or sandy banks of moderate-gradient streams (1.5%) that are frequently flooded (two-year recurrence interval). Soils have been reported as coarse-loamy over fragmental Typic Torrifluvents, and as cobbly riverwash, reflecting the coarse substrates of sites. Populus fremontii and Fraxinus velutina codominate young, moderate to dense canopies (>50% cover). Acer negundo, Salix gooddingii, Juglans major, Alnus oblongifolia, and Celtis laevigata var. reticulata are occasional canopy or subcanopy associates. Undergrowth is moderately diverse, but cover is low. In the shrub layer there are usually scattered individuals of Baccharis salicifolia and Amorpha fruticosa. The herbaceous layer has sparse to moderate cover. Common associates may include Juncus saximontanus, Sphenopholis obtusata, Sporobolus cryptandrus, Muhlenbergia wrightii, and Datura wrightii. Disturbed stands often have high cover of the introduced Bromus diandrus, Bromus tectorum, or some other exotics.
Diagnostic Characteristics: No Data Available
Rationale for Nominal Species or Physiognomic Features: No Data Available
Classification Comments: This type may only be a variant of ~Populus fremontii - Salix gooddingii Riparian Woodland (CEGL000944)$$ and similar types. Szaro (1989) describes a Populus fremontii - Fraxinus pennsylvanica Community Type that is probably equivalent. Similarly, Dick-Peddie (1993) reports a Populus fremontii - Fraxinus pennsylvanica - Salix gooddingii type without a description as part of his Montane Riparian, Broadleaf Cottonwood-Mixed Deciduous Series in the Mimbres watershed that is possibly also synonymous.
Similar NVC Types: No Data Available
note: No Data Available
Physiognomy and Structure: No Data Available
Floristics: This riparian association is characterized by an open to moderately dense canopy (20-60% cover) that is codominated by large Populus fremontii and Fraxinus velutina trees. Acer negundo, Salix gooddingii, Juglans major, Alnus oblongifolia, Celtis laevigata var. reticulata, and Populus angustifolia (at higher elevations) are occasional canopy associates, but may be more common in the subcanopy (if present). Undergrowth is moderately diverse, but cover is low. In the shrub layer there are usually scattered individuals of Amorpha fruticosa, Baccharis salicifolia, and several other shrubs including Baccharis emoryi, Brickellia californica, and Ericameria nauseosa. The herbaceous layer has sparse to moderate cover. Common associates may include Juncus saximontanus, Sphenopholis obtusata, Sporobolus cryptandrus, Muhlenbergia wrightii, and Datura wrightii. Disturbed stands often have high cover of the introduced Bromus diandrus, Bromus tectorum, or some other exotics.
Dynamics: No Data Available
Environmental Description: This is a lowland forested riparian association known from central and southeastern Arizona, southwestern New Mexico and southwestern Utah. Elevations range from 1200-1550 m . Sites are typically rocky or sandy banks of moderate-gradient streams (1.5%) that are frequently flooded (two-year recurrence interval). However, stands are also reported from higher elevations in cool drainages or ravines. Soils have been reported as coarse-loamy over fragmental Typic Torrifluvents, and as cobbly riverwash, reflecting the coarse substrates of sites.
Geographic Range: This association occurs in lowlands along the Animas Creek of the eastern slope of the Black Range in the Rio Grande Basin (Sierra County) and elsewhere in southwestern New Mexico, southern Arizona, southwestern Utah, and may occur in western Texas.
Nations: MX?,US
States/Provinces: AZ, MXSON?, NM, TX?, UT
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.688559
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.Nd Western North American Interior Flooded Forest Division | D013 | 1.B.3.Nd |
| Macrogroup | 1.B.3.Nd.2 Interior Warm & Cool Desert Riparian Forest Macrogroup | M036 | 1.B.3.Nd.2 |
| Group | 1.B.3.Nd.2.b Western Interior Riparian Forest & Woodland Group | G797 | 1.B.3.Nd.2.b |
| Alliance | A3803 Fremont Cottonwood - Velvet Ash - Goodding''s Willow Riparian Forest & Woodland Alliance | A3803 | 1.B.3.Nd.2.b |
| Association | CEGL000942 Fremont Cottonwood - Velvet Ash Riparian Woodland | CEGL000942 | 1.B.3.Nd.2.b |
Concept Lineage: No Data Available
Predecessors: No Data Available
Obsolete Names: No Data Available
Obsolete Parents: No Data Available
Synonomy: = Populus fremontii - Fraxinus pennsylvanica Community Type (Szaro 1989)
= Populus fremontii - Fraxinus pennsylvanica type (Boles and Dick-Peddie 1983)
= Fremont Cottonwood-Velvet Ash CT (Muldavin et al. 2000a)
= Group I in Table 3; dominated by Populus fremontii in tree canopy and Baccharis salicifolia shrub layer (Webb and Brotherson 1988)
= Populus fremontii - Fraxinus pennsylvanica type (Boles and Dick-Peddie 1983)
= Fremont Cottonwood-Velvet Ash CT (Muldavin et al. 2000a)
= Group I in Table 3; dominated by Populus fremontii in tree canopy and Baccharis salicifolia shrub layer (Webb and Brotherson 1988)
- Boles, P. H., and W. A. Dick-Peddie. 1983. Woody riparian vegetation patterns on a segment of the Mimbres River in southwestern New Mexico. Southwestern Naturalist 28:81-87.
- 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.
- Cogan, D., M. Reid, K. Schulz, and M. Pucherelli. 2004. Zion National Park, Utah 1999-2003. Vegetation Mapping Project. Technical Memorandum 8260-03-01. Remote Sensing and GIS Group Technical Service Center, Bureau of Reclamation, Denver, CO. Appendix F: Vegetation Association Descriptions for Zion.
- Kearsley, M. J. C., K. Green, M. Tukman, M. Reid, M. Hall, T. J. Ayers, and K. Christie. 2015. Grand Canyon National Park-Grand Canyon / Parashant National Monument vegetation classification and mapping project. Natural Resource Report NPS/GRCA/NRR--2015/913. National Park Service, Fort Collins, CO. 75 pp. plus appendices.
- Muldavin, E., P. Durkin, M. Bradley, M. Stuever, and P. Mehlhop. 2000a. Handbook of wetland vegetation communities of New Mexico. Volume I: Classification and community descriptions. Final report to the New Mexico Environment Department and the Environmental Protection Agency prepared by the New Mexico Natural Heritage Program, University of New Mexico, Albuquerque.
- Reid, M. S., and M. E. Hall. 2010. Vegetation classification of Grand Canyon National Park. Draft report submitted to National Park Service, Fort Collins, CO.
- Schulz, K. A. 2004. Vegetation classification of Buenos Aires National Wildlife Refuge, Arizona. Unpublished report submitted to USDI Fish and Wildlife Service. NatureServe, Western Regional Office, Boulder, CO.
- Szaro, R. C. 1989. Riparian forest and scrubland community types of Arizona and New Mexico. Desert Plants Special Issue 9(3-4):70-139.
- Webb, G. M., and J. D. Brotherson. 1988. Elevational changes in woody vegetation along three streams in Washington County, Utah. Great Basin Naturalist 48:512-529.
- Western Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Boulder, CO.