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CEGL002876 Umbellularia californica - Juglans californica / Ceanothus spinosus Riparian Forest
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: California Laurel - Southern California Walnut / Redheart Riparian Forest
Colloquial Name: No Data Available
Hierarchy Level: Association
Type Concept: This association is only known from the Santa Monica Mountains region. This forest association occurs on moderately steep to steep north-facing slopes at low elevations between 0 and 734 m. It is dominated by Umbellularia californica and Juglans californica in the tree layer, Ceanothus spinosus in the understory shrub layer, and a variety of grasses and forbs in the herbaceous layer.
Diagnostic Characteristics: No Data Available
Rationale for Nominal Species or Physiognomic Features: No Data Available
Classification Comments: Although locally common, this association is largely endemic to the Santa Monica Mountains and surrounding areas.
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 intermittent tree layer (8-62%, mean 27.6%) with conifers at 0-10 m tall and hardwoods at 5-15 m tall, a sparse to intermittent shrub layer (1-56%, mean 32.1%) at 0-10 m tall, and a sparse herbaceous layer (0-10%, mean 1.5%) at 0-1 m tall. Total vegetation cover is 35-70%; mean cover is 60.9%. In this association, the tree layer is dominated by Umbellularia californica and Juglans californica, and Quercus agrifolia is occasionally included in this layer. The shrub layer is sparse to intermittent and is dominated by Ceanothus spinosus, and Heteromeles arbutifolia is often found at lower cover. Occasionally, Ceanothus megacarpus, Prunus ilicifolia, and Toxicodendron diversilobum are also included. The herbaceous layer is diverse and occasionally includes Leymus condensatus, Dryopteris arguta, and Piptatherum miliaceum at low cover.
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.2.788758
Confidence Level: Low
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 | CEGL002876 California Laurel - Southern California Walnut / Redheart Riparian Forest | CEGL002876 | 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: = Umbellularia californica - Juglans californica / Ceanothus spinosus (Sawyer et al. 2009) [74.100.11]
= Umbellularia californica-Juglans californica/Ceanothus spinosus Woodland/Forest Association (Keeler-Wolf and Evens 2006)
= Umbellularia californica-Juglans californica/Ceanothus spinosus Woodland/Forest Association (Keeler-Wolf and Evens 2006)
- 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.
- 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.