Print Report
CEGL002857 Platanus racemosa / Annual Grass-Herb Riparian Woodland
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: California Sycamore / Annual Grass-Herb Riparian Woodland
Colloquial Name: No Data Available
Hierarchy Level: Association
Type Concept: This association is only known from the Santa Monica Mountains region. This woodland association occurs on flat to gentle slopes at low elevations between 34 and 140 m. It consists of Platanus racemosa dominating in the tree layer and Bromus diandrus dominating in the herbaceous layer.
Diagnostic Characteristics: No Data Available
Rationale for Nominal Species or Physiognomic Features: No Data Available
Classification Comments: This association resembles some stands that were classified as Sycamore Alluvial Woodland, a rare natural community of central California.
Similar NVC Types: No Data Available
note: No Data Available
Physiognomy and Structure: No Data Available
Floristics: Stands of this association at Santa Monica Mountains National Recreation Area form a sparse to open tree layer (6-22%, mean 13.2%) with conifers at 0-15 m tall and hardwoods at 10-20 m tall, a sparse shrub layer (0-2%, mean 0.4%) at 0-5 m tall, and an open to intermittent herbaceous layer (17-64%, mean 42.8%) at 0-1 m tall. Total vegetation cover is 38-68%; mean cover is 53.2%. In this association, the tree layer is dominated by Platanus racemosa. The shrub layer is sparse and often includes Malacothamnus fasciculatus, while Baccharis pilularis, Baccharis salicifolia, Salix lasiolepis, and Spartium junceum are occasionally included at very low cover. The herbaceous layer is diverse yet often dominated by non-native species such as Bromus diandrus, Marrubium vulgare, Brassica nigra, and Cirsium vulgare. Other herbs occasionally occurring at low cover include Ambrosia sp., Arundo donax, Piptatherum miliaceum, Foeniculum vulgare, and Cynodon dactylon.
Dynamics: Until further inventory is completed, there is no global information.
Environmental Description: Until further inventory is completed, there is no global information.
Geographic Range: This association is only known from the Santa Monica Mountains region. Information about its global distribution is not available without additional inventory.
Nations: US
States/Provinces: CA
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.788657
Confidence Level: Moderate
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.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 | A3750 California Sycamore - California Live Oak - Southern California Walnut Riparian Woodland Alliance | A3750 | 1.B.3.Nd.2.b |
| Association | CEGL002857 California Sycamore / Annual Grass-Herb Riparian Woodland | CEGL002857 | 1.B.3.Nd.2.b |
Concept Lineage: This (CEGL005307) appears to be covered by the concept and references for CEGL002857, and this name is not listed in Sawyer et al. 2009 under the Platanus racemosa Allaince with the other associations (GK 2-12). This placeholder has been replaced by several new types for SAMO.
Predecessors: No Data Available
Obsolete Names: No Data Available
Obsolete Parents: No Data Available
Synonomy: = Platanus racemosa / annual grass (Sawyer et al. 2009) [61.311.03]
= Platanus racemosa Temporarily Flooded Woodland (Kittel et al. 2012a)
= Platanus racemosa(/annual grass) Association (Buck-Diaz et al. 2012)
= Platanus racemosa/Annual Grass-Herb Woodland/Forest Association (Keeler-Wolf and Evens 2006)
? Sycamore Alluvial Woodland (#62100) (Holland 1986b)
= Platanus racemosa Temporarily Flooded Woodland (Kittel et al. 2012a)
= Platanus racemosa(/annual grass) Association (Buck-Diaz et al. 2012)
= Platanus racemosa/Annual Grass-Herb Woodland/Forest Association (Keeler-Wolf and Evens 2006)
? Sycamore Alluvial Woodland (#62100) (Holland 1986b)
- 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]
- Campbell, B. 1980b. Some mixed hardwood forest communities of the coastal ranges of southern California. Phytocoenologia 8:297-320.
- 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.
- Holland, R. F. 1986b. Preliminary descriptions of the terrestrial natural communities of California. Unpublished report prepared for the California Department of Fish and Game, Nongame-Heritage Program and Natural Diversity Database, Sacramento. 156 pp.
- Keeler-Wolf, T., K. Lewis, and C. Roye. 1997. The definition and location of central California sycamore alluvial woodland. Unpublished final report. State of California, The Resources Agency, Department of Fish and Game, Sacramento, CA.
- Keeler-Wolf, T., and J. Evens. 2006. Vegetation classification of the Santa Monica Mountains National Recreation Area and environs in Ventura and Los Angeles counties, California. A report submitted to National Park Service, Santa Monica Mountains National Recreation Area by California Department of Fish and Game, Wildlife and Habitat Data Analysis Branch and The California Native Plant Society, Vegetation Program, Sacramento, CA.
- 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]
- 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.
- Sawyer, J. O., and T. Keeler-Wolf. 1995. A manual of California vegetation. California Native Plant Society, Sacramento. 471 pp.
- Western Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Boulder, CO.