Print Report

CEGL002859 Platanus racemosa - Quercus agrifolia / Salix lasiolepis Riparian Woodland

Type Concept Sentence: No Data Available


Common (Translated Scientific) Name: California Sycamore - California Live 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 association occurs on gentle to steep slopes with variable aspects at elevations between 35 and 445 m. It is dominated by Platanus racemosa and Quercus agrifolia in the tree layer, Salix lasiolepis in the tree understory, Toxicodendron diversilobum and Salix lasiolepis in the shrub layer, and a variety of forbs and grasses in the herbaceous layer.

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: Stands of this association at Santa Monica Mountains National Recreation Area form an open to intermittent tree layer (12-59%, mean 35.9%) with hardwoods at 5-20 m tall, a sparse to intermittent shrub layer (0-45%, mean 13.9%) at 0-10 m tall, and a sparse to intermittent herbaceous layer (0-37%, mean 5.8%) at 0-1 m tall. Total vegetation cover is 30-70%; mean cover is 50.9%. In this association, the tree layer is dominated by Platanus racemosa and Quercus agrifolia. Umbellularia californica, Salix laevigata, and Juglans californica are occasionally included in this layer. Salix lasiolepis is dominant in the tree and shrub understory. The shrub layer is also dominated by Toxicodendron diversilobum. Occasionally, Baccharis salicifolia, Ceanothus spinosus, and Heteromeles arbutifolia are also included in the diverse shrub layer. The herbaceous layer is diverse and includes a variety of herbs, including Piptatherum miliaceum, Artemisia douglasiana, Carduus pycnocephalus, Typha sp., and Leymus condensatus.

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




Confidence Level: Moderate

Confidence Level Comments: No Data Available

Grank: G3

Greasons: No Data Available


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: = Platanus racemosa - Quercus agrifolia - Salix lasiolepis (Sawyer et al. 2009) [61.312.03]
= Platanus racemosa-Quercus agrifolia-Salix lasiolepis Woodland/Forest (Keeler-Wolf and Evens 2006)

Concept Author(s): Keeler-Wolf and Evens (2006)

Author of Description: T. Keeler-Wolf and J. Evens

Acknowledgements: No Data Available

Version Date: 11-08-05

  • 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.