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CEGL002861 Quercus agrifolia / Annual Grass-Herb Woodland
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: California Live Oak / Annual Grass-Herb Woodland
Colloquial Name: No Data Available
Hierarchy Level: Association
Type Concept: This association is known from much of central and southern coastal California, from Solano to San Diego counties. This woodland association occurs on flat to steep slopes that are often facing northwest at low elevations between 45 and 700 m. It is dominated by Quercus agrifolia in the tree layer and Bromus diandrus and other herbs in the herbaceous layer.
Diagnostic Characteristics: No Data Available
Rationale for Nominal Species or Physiognomic Features: No Data Available
Classification Comments: This association was originally named Quercus agrifolia / Grass by Allen et al. (1991) from Solano to Monterey counties, though it has been documented elsewhere in southern California as well as central California. It is called Quercus agrifolia / Annual Grass-Herb here to better describe the annual nature of the understory. Other community descriptions that are considered equivalent are the Quercus agrifolia / grass associations of Shuford and Timossi (1989) and Evens and Kentner (2006) from Marin County.
Similar NVC Types: No Data Available
note: No Data Available
Physiognomy and Structure: No Data Available
Floristics: The Quercus agrifolia overstory is variable in cover, from open to continuous. Other tree species that may also be present at relatively low cover and include Platanus racemosa, Populus fremontii, Pseudotsuga menziesii, Quercus chrysolepis, Quercus dumosa, Quercus lobata, and Juglans californica. Introduced invasive trees such as Eucalyptus spp. can be abundant in some stands. Shrubs may be present, such as Artemisia californica, Adenostoma fasciculatum, Eriogonum fasciculatum, Heteromeles arbutifolia, Malosma laurina, Rhus ovata, Sambucus nigra ssp. cerulea (= Sambucus mexicana), Salvia leucophylla, and Salvia mellifera. The herbaceous layer is usually intermittent to open, especially with forbs (e.g., Brassica spp., Claytonia perfoliata, and Lupinus spp.) and non-native annual grasses (e.g., Avena fatua, Bromus diandrus, Bromus hordeaceus, and Vulpia spp.).
Dynamics: No Data Available
Environmental Description: This association occupies virtually all aspects and slope steepness (0-32°) from between 45 and 700 m elevation. Substrate texture is variable, and stands typically occur on sandstones and shales.
Geographic Range: This association is known from much of central and southern coastal California. It is known from the Coast Ranges, from Marin and Solano counties north of the San Francisco Bay area south to San Diego County.
Nations: US
States/Provinces: CA
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.788698
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.1 Warm Temperate Forest & Woodland Formation | F018 | 1.B.1 |
| Division | 1.B.1.Nc Californian Forest & Woodland Division | D007 | 1.B.1.Nc |
| Macrogroup | 1.B.1.Nc.1 California Live Oak - California Laurel - Western Cypress species Forest & Woodland Macrogroup | M009 | 1.B.1.Nc.1 |
| Group | 1.B.1.Nc.1.a California Live Oak - Valley Oak - California Laurel Forest & Woodland Group | G195 | 1.B.1.Nc.1.a |
| Alliance | A3346 California Live Oak Woodland Alliance | A3346 | 1.B.1.Nc.1.a |
| Association | CEGL002861 California Live Oak / Annual Grass-Herb Woodland | CEGL002861 | 1.B.1.Nc.1.a |
Concept Lineage: 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: = Quercus agrifolia / Annual Grass-Herb (Evens and San 2006)
= Quercus agrifolia / Annual Grass-Herb Association (Klein and Evens 2006) [This association also lists Platanus racemosa and Populus fremontii, which sound more riparian than the other reference with the same name. This type may be slightly broader for this reason.]
= Quercus agrifolia / Grass (Evens and Kentner 2006)
= Quercus agrifolia / Grass (Shuford and Timossi 1989)
= Quercus agrifolia / grass (Sawyer et al. 2009) [71.060.09]
= Quercus agrifolia/Annual Grass-Herb Woodland/Forest Association (Keeler-Wolf and Evens 2006)
= Coast Live Oak/Grass (Allen et al. 1991)
= Coast Live Oak/Grass (Allen et al. 1989)
= Quercus agrifolia / Annual Grass-Herb Association (Klein and Evens 2006) [This association also lists Platanus racemosa and Populus fremontii, which sound more riparian than the other reference with the same name. This type may be slightly broader for this reason.]
= Quercus agrifolia / Grass (Evens and Kentner 2006)
= Quercus agrifolia / Grass (Shuford and Timossi 1989)
= Quercus agrifolia / grass (Sawyer et al. 2009) [71.060.09]
= Quercus agrifolia/Annual Grass-Herb Woodland/Forest Association (Keeler-Wolf and Evens 2006)
= Coast Live Oak/Grass (Allen et al. 1991)
= Coast Live Oak/Grass (Allen et al. 1989)
- Allen, B. H., R. R. Everet, and B. A. Holzman. 1991. A classification system for California''s hardwood rangelands. Hilgardia 59:1-45.
- Allen, B. H., R. R. Evett, B. A. Holzman, and A. J. Martin. 1989. Report on rangeland cover type description for California hardwood rangelands. Department of Forestry and Fire Protection and Department of Forestry and Resource Management. Berkeley, CA.
- Evens, J. M., and E. Kentner. 2006. Classification of vegetation associations from the Mount Tamalpais Watershed, Nicasio Reservoir, and Soulajule Reservior in Marin County, California. Report for the Marin Municipal Water District. California Native Plant Society, Sacramento.
- 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.
- 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.
- Shuford, W. D., and I. C. Timossi. 1989. Plant communities of Marin County. California Native Plant Society, Sacramento.
- Western Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Boulder, CO.