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CEGL000941 Populus fremontii / Baccharis salicifolia Riparian Woodland
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Fremont Cottonwood / Mule-fat Riparian Woodland
Colloquial Name: No Data Available
Hierarchy Level: Association
Type Concept: This lowland riparian woodland is described from central and southern coastal interior ranges of California, southwestern Utah and southwestern New Mexico, and may possibly occur along the San Pedro River in southeastern Arizona. Elevations are below 1580 m in New Mexico, below 1300 m in Utah, and between 85 and 1275 m (279-4182 feet) in California. Stands typically occur along lower-elevation reaches of streams and on the main stem of rivers. Sites are on low- to mid-elevation terraces and bars that have shallow water tables and are flooded for brief periods during the growing season. Soils are shallow and coarse-textured, composed of sand, gravel or cobbles derived from alluvium. Diagnostic of this riparian woodland is the tree canopy dominated by Populus fremontii with Baccharis salicifolia dominating the shrub layer. Fraxinus velutina, Platanus wrightii and Salix gooddingii may be present but are not well-represented (<5% cover). The shrub layer is composed primarily of Baccharis salicifolia. Other common associates may include Salix exigua, Prosopis spp., and Ericameria nauseosa. Tamarix ramosissima and Elaeagnus angustifolia are common introduced shrub and tree species that have invaded many of these stands. The herbaceous layer is variable but is generally sparse. Disturbed sites may be dominated by introduced species such as Bromus tectorum.
Diagnostic Characteristics: No Data Available
Rationale for Nominal Species or Physiognomic Features: No Data Available
Classification Comments: ~Populus fremontii / Baccharis salicifolia Riparian Woodland (CEGL000941)$$ as described here has no Salix gooddingii present. Authors who list Salix gooddingii in the name included stands dominated by Populus fremontii with a Baccharis salicifolia understory and without any Salix gooddingii present, hence these concepts are considered broader than the concept of this association. This type is closely related to both ~Populus fremontii - Salix gooddingii / Baccharis salicifolia Riparian Forest (CEGL002683)$$ and ~Populus fremontii - Salix gooddingii / Salix exigua Riparian Forest (CEGL002684)$$. All three types, in turn, are probably refinements of the Fremont cottonwood - willow type of Laurenzi et al. (1983) and Brown et al. (1979), and the Populus fremontii / Salix gooddingii community type of Reichenbacher (1984) and Szaro (1989) documented for Arizona, and by Campbell and Dick-Peddie (1964) and Dick-Peddie (1993) in New Mexico.
Similar NVC Types: No Data Available
note: No Data Available
Physiognomy and Structure: No Data Available
Floristics: Populus fremontii dominates the tree layer. Baccharis salicifolia is characteristically present and most abundant in the shrub understory, while non-native Tamarix sp. may be present. Fraxinus velutina, Platanus wrightii, and Salix gooddingii may be present but are not well-represented (<5% cover). Other common associates may include Salix exigua, Prosopis spp., and Ericameria nauseosa (= Chrysothamnus nauseosus). Tamarix ramosissima and Elaeagnus angustifolia are common introduced shrub and tree species that have invaded many of these stands. The herbaceous layer is variable but is generally sparse. Disturbed sites may be dominated by introduced species such as Bromus tectorum.
Dynamics: No Data Available
Environmental Description: In California, this riparian woodland occurs between 85 and 1275 m (279-4182 feet) elevation on low-gradient streams and rivers in wide and occasionally narrow valley bottoms. Parent material is alluvium, and soils range from coarse sand to fine sand to silty clay loam. In Utah and New Mexico, the environmental setting is the same but with elevations reaching 1580 m (5183 feet).
Geographic Range: This association is found in New Mexico on the main stem of the Gila River near Spar Canyon in southwestern New Mexico (Grant County), the TNC Gila Preserve and on the main stem of the San Francisco River near Sundial Mountain and Devil''s Creek. In California, it is documented along streams of the Coast Ranges from San Benito, western Fresno, and western Riverside counties. It also occurs in Utah.
Nations: US
States/Provinces: CA, NM, UT
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.684946
Confidence Level: Low
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.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 | CEGL000941 Fremont Cottonwood / Mule-fat Riparian Woodland | CEGL000941 | 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 / Baccharis salicifolia (Evens and San 2006)
= Populus fremontii / Baccharis salicifolia (Klein and Evens 2006)
? Populus fremontii / Baccharis salicifolia (Sawyer et al. 2009) [61.130.16]
< Populus fremontii / Salix gooddingii Community Type (Campbell and Dick-Peddie 1964)
< Populus fremontii / Salix gooddingii Community Type (Szaro 1989)
< Populus fremontii / Salix gooddingii Vegetation Type (Dick-Peddie 1993)
< Populus fremontii / Salix gooddingii community type (Reichenbacher 1984)
< Populus fremontii (Fremont cottonwood forest) Alliance (Sawyer et al. 2009) [61.130.00]
= Fremont Cottonwood/Seepwillow 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 / Baccharis salicifolia (Klein and Evens 2006)
? Populus fremontii / Baccharis salicifolia (Sawyer et al. 2009) [61.130.16]
< Populus fremontii / Salix gooddingii Community Type (Campbell and Dick-Peddie 1964)
< Populus fremontii / Salix gooddingii Community Type (Szaro 1989)
< Populus fremontii / Salix gooddingii Vegetation Type (Dick-Peddie 1993)
< Populus fremontii / Salix gooddingii community type (Reichenbacher 1984)
< Populus fremontii (Fremont cottonwood forest) Alliance (Sawyer et al. 2009) [61.130.00]
= Fremont Cottonwood/Seepwillow 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)
- 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.
- Campbell, C. J., and W. A. Dick-Peddie. 1964. Comparison of phreatophyte communities on the Rio Grande in New Mexico. Ecology 45:492-501.
- Dick-Peddie, W. A. 1993. New Mexico vegetation: Past, present, and future. University of New Mexico Press, Albuquerque. 244 pp.
- Evens, J., and S. San. 2006. Vegetation alliances of the San Dieguito River Park region, San Diego County, California. Final report (August 2005) Version 2 (revised May 2006). Prepared by California Native Plant Society in cooperation with the California Natural Heritage Program of the California Department of Fish and Game and San Diego Chapter of the California Native Plant Society. Sacramento, CA. 271 pp.
- Kittel, G., E. Reyes, J. Evens, J. Buck, and D. Johnson. 2012a. Vegetation classification and mapping project report, Pinnacles National Monument. Natural Resource Report NPS/SFAN/NRR-2012/574. National Park Service, Fort Collins, CO. 428 pp.
- Klein, A., and J. Evens. 2006. Vegetation alliances of western Riverside County, California. Contract Number: P0185404. Final report prepared for The California Department of Fish and Game, Habitat Conservation Division. California Native Plant Society, Sacramento, CA. 332 pp. [http://www.dfg.ca.gov/biogeodata/vegcamp/pdfs/VegMappingRpt_Western_Riverside.pdf]
- Muldavin, E. 1987. Gila Riparian Preserve Design. Unpublished report prepared for The Nature Conservancy, New Mexico Field Office by New Mexico Natural Heritage Program, Albuquerque.
- 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.
- NHNM [Natural Heritage New Mexico]. No date. Unpublished data on file. Natural Heritage New Mexico, University of New Mexico, Albuquerque.
- Reichenbacher, F. W. 1984. Ecology and evolution of southwestern riparian plant communities. Desert Plants 6(1):15-23.
- Sawyer, J. O., T. Keeler-Wolf, and J. Evens. 2009. A manual of California vegetation. Second edition. California Native Plant Society, Sacramento CA. 1300 pp.
- 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.