Print Report
CEGL002873 Quercus lobata - Salix lasiolepis Riparian Woodland
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Valley Oak - Arroyo Willow 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/forest association occurs on gentle to moderate slopes with variable aspect at low elevations between 230 and 318 m. It is dominated by Quercus lobata in the overstory tree layer. Salix lasiolepis is present in either the tree or shrub layer, and Quercus agrifolia is often present in the understory tree layer. Baccharis salicifolia is abundant in the understory shrub layer, and a variety of grasses and forbs are found in the herbaceous layer. This is considered a provisional association because only three samples of this type have been collected.
Diagnostic Characteristics: No Data Available
Rationale for Nominal Species or Physiognomic Features: No Data Available
Classification Comments: This provisional association is likely to occur elsewhere within the range of the Quercus lobata alliance. Many stands of Quercus lobata in the Sacramento Valley are true riparian stands. Although no associations have been defined with Quercus lobata and Salix lasiolepis, it is likely that this association occurs elsewhere in the south and central Coast Ranges of California and possibly in the Sacramento and San Joaquin valleys, as well.
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 an open to intermittent tree layer (25-60%, mean 42.3%) with hardwoods at 5-15 m tall, a sparse to open shrub layer (2-11%, mean 7.7%) at 0-2 m tall, and a sparse to open herbaceous layer (2-25%, mean 12%) at 0-1 m tall. Total vegetation cover is 60-65%; mean cover is 62%. In this association, the tree layer is dominated by Quercus lobata. Salix lasiolepis is found in the tree or shrub layer with moderate to abundant cover. Quercus agrifolia is found at low cover in the understory tree layer, and Salix laevigata is occasionally included in the tree layer. The shrub layer is sparse to open and often includes Baccharis salicifolia and Baccharis pilularis. The herbaceous layer is simple and occasionally includes Bromus diandrus and Rubus ursinus.
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.2.788749
Confidence Level: Moderate
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 | A0618 Valley Oak Riparian Forest Alliance | A0618 | 1.B.3.Nd.2.b |
| Association | CEGL002873 Valley Oak - Arroyo Willow Riparian Woodland | CEGL002873 | 1.B.3.Nd.2.b |
Concept Lineage: Upgraded to Standard during screening.
Predecessors: No Data Available
Obsolete Names: No Data Available
Obsolete Parents: No Data Available
Synonomy: = Quercus lobata - Salix lasiolepis (Sawyer et al. 2009) [71.040.20]
= Quercus lobata-Salix lasiolepis Association (Buck-Diaz et al. 2012)
= Quercus lobata-Salix lasiolepis Woodland/Forest Association (Keeler-Wolf and Evens 2006)
= Quercus lobata-Salix lasiolepis Association (Buck-Diaz et al. 2012)
= Quercus lobata-Salix lasiolepis Woodland/Forest Association (Keeler-Wolf and Evens 2006)
- 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]
- 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., 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.
- Vaghti, M. G., and S. Greco. 2007. Riparian vegetation of the Great Valley. Pages 425-455 in: M. G. Barbour, T. Keeler-Wolf, and A. A. Schoenherr, editors. Terrestrial vegetation of California, third edition. University of California Press, Berkeley, CA.
- Western Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Boulder, CO.