Print Report
CEGL005308 Populus fremontii - Salix laevigata Riparian Woodland
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Fremont Cottonwood - Red Willow Riparian Woodland
Colloquial Name: No Data Available
Hierarchy Level: Association
Type Concept: This riparian woodland is known from northern, central, and southern California, from the Sierra Nevada foothills, central interior Coast Ranges, and San Diego and Riverside counties. It occurs on low-gradient, relatively wide or narrow streams and rivers at elevations from 57 to 1275 m (187-4182 feet). Stream gradients range from 0-4°. Valley width is usually moderately wide to wide, with a few occurrences on narrow reaches. Populus fremontii and Salix laevigata are typically codominant, although some stands lack red willow. Tree cover typically exceeds 50% (4-90%), but some stands have much less cover. Conversely, understory layers are usually open. Shrub species that may be present include Baccharis salicifolia, Baccharis pilularis, Salix lasiolepis, Rubus armeniacus, Rubus ursinus, and Rosa californica. The herbaceous cover is also highly variable. No understory species is designated in the name of this association to reflect the high variation and lack of consistency of the understory layers.
Diagnostic Characteristics: No Data Available
Rationale for Nominal Species or Physiognomic Features: No Data Available
Classification Comments: No Data Available
Similar NVC Types: No Data Available
note: No Data Available
Physiognomy and Structure: No Data Available
Floristics: In this riparian woodland, Populus fremontii and Salix laevigata are typically codominant, although some stands lack red willow. Tree cover typically exceeds 50% cover, but some stands have much less. Conversely, understory layers are usually open. Although Baccharis salicifolia, Baccharis pilularis, Salix lasiolepis, Rubus armeniacus (= Rubus procerus), Rubus ursinus, and Rosa californica can individually approach 50% cover, shrub cover will often be less than 25%. The forb and grass layers are also open. Artemisia douglasiana cover exceeds 90% in rare cases, but normally forb cover is less than 25%. Other forbs observed include Anemopsis californica, Eleocharis sp., Iris missouriensis, Rumex sp., Stachys albens, and Melilotus indicus. Similarly, graminoids Carex barbarae, Elymus glaucus, Bromus diandrus, Elymus glaucus ssp. glaucus, and Juncus arcticus ssp. littoralis (= Juncus balticus) were observed to have more than 50% cover on individual sites, but grass cover in most cases is less than 25%. Moss and lichen cover is generally absent.
Dynamics: No Data Available
Environmental Description: This riparian community occurs on low-gradient, relatively wide or narrow streams and rivers at elevations from 85 to 1275 m (279-4182 feet). Stream gradients range from 0-4°. Valley width is usually moderately wide to wide, with a few occurrences on narrow reaches. The parent material is alluvial, and soils range from coarse sand to silty clay loam.
Geographic Range: This association is known from the central interior Coast Ranges (northern San Benito County), San Diego and Riverside counties of southern California, and from the northern, central, and southern Sierra Nevada foothills.
Nations: US
States/Provinces: CA
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.799301
Confidence Level: Moderate
Confidence Level Comments: No Data Available
Grank: GNR
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 | CEGL005308 Fremont Cottonwood - Red Willow Riparian Woodland | CEGL005308 | 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 - Salix laevigata (Sawyer et al. 2009) [61.130.15]
= Populus fremontii - Salix laevigata Association (Evens and San 2006)
= Populus fremontii - Salix laevigata Association (Klein and Evens 2006)
= Populus fremontii - Salix laevigata Association (Klein et al. 2007)
= Populus fremontii - Salix laevigata Association (Potter 2005)
= Populus fremontii - Salix laevigata Woodland (Kittel et al. 2012a)
= Populus fremontii-Salix laevigata Association (Evens et al. 2014)
= Populus fremontii–Salix laevigata Association (Buck-Diaz et al. 2012)
= Populus fremontii - Salix laevigata Association (Evens and San 2006)
= Populus fremontii - Salix laevigata Association (Klein and Evens 2006)
= Populus fremontii - Salix laevigata Association (Klein et al. 2007)
= Populus fremontii - Salix laevigata Association (Potter 2005)
= Populus fremontii - Salix laevigata Woodland (Kittel et al. 2012a)
= Populus fremontii-Salix laevigata Association (Evens et al. 2014)
= Populus fremontii–Salix laevigata Association (Buck-Diaz et al. 2012)
- Buck-Diaz, J., S. Batiuk, and J. M. Evens. 2012. Vegetation alliances and associations of the Great Valley ecoregion, California. California Native Society, Sacramento, CA. [http://cnps.org/cnps/vegetation/pdf/great_valley_eco-vegclass2012.pdf]
- Cogan, D., and J. E. Taylor. 2014. Manzanar National Historic Site: Vegetation classification and mapping project report. Natural Resource Technical Report NPS/MANZ/NRTR--2014/868. National Park Service, Fort Collins, CO. 170 pp.
- Evens, J. M., K. Sikes, D. Hastings, and J. Ratchford. 2014. Vegetation alliance descriptions for Lake Mead National Recreation Area, Death Valley National Park and Mojave National Preserve. Unpublished report submitted to USDI National Park Service, Mojave Desert Network Inventory and Monitoring Program. California Native Plant Society, Sacramento, CA.
- 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., J. Crawford, J. Evens, T. Keeler-Wolf, and D. Hickson. 2007. Classification of the vegetation alliances and associations of the northern Sierra Nevada foothills, California. Volumes 1 and 2. Report prepared for California Department of Fish and Game, Habitat Conservation Division. California Native Plant Society, Sacramento, CA. [https://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=18232&inline=1]
- 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]
- Potter, D. A. 2005. Riparian plant community classification: West slope, central and southern Sierra Nevada, California. Technical Paper R5-TP-022. USDA Forest Service, Pacific Southwest Region, Vallejo, CA. 634 pp.
- 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.
- Western Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Boulder, CO.