Print Report

CEGL003342 Prunus ilicifolia / Sanicula crassicaulis Shrubland

Type Concept Sentence: No Data Available


Common (Translated Scientific) Name: Hollyleaf Cherry / Pacific Black-snakeroot Shrubland

Colloquial Name: No Data Available

Hierarchy Level:  Association

Type Concept: This shrubland association is currently only known from Point Reyes National Seashore in California, and the following description is based on occurrences there. Additional information will be added as it becomes available. Stands are found at low elevations on 4- to 13-degree slopes. Aspects are east-northeast to southwest on undulating lower to upper slopes. Soil textures range from moderately fine sandy clay loam to moderately coarse sandy loam. This shrubland forms dense stands dominated by Prunus ilicifolia with continuous cover of 60-80% cover in the shrub layer. Sanicula crassicaulis is an important understory herb. A variety of herbs and shrubs that are often found in this association include Dirca occidentalis, Sanicula crassicaulis, Toxicodendron diversilobum, Heracleum maximum, Marah fabaceus, Ribes californicum, Heteromeles arbutifolia, and Ceanothus thyrsiflorus. Other species that may be included are Conium maculatum, Sambucus nigra ssp. cerulea, Ribes sanguineum, Stellaria media, Galium aparine, Dryopteris arguta, Solanum douglasii, Maianthemum racemosum, Clinopodium douglasii, Carduus pycnocephalus, Artemisia californica, Solanum xanti, Hesperocnide tenella, and Polystichum munitum. This association is often adjacent to Baccharis pilularis communities.

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: This shrubland forms dense stands dominated by Prunus ilicifolia with continuous cover of 60-80% cover in the shrub layer. Sanicula crassicaulis is an important understory herb. A variety of herbs and shrubs that are often found in this association include Dirca occidentalis, Sanicula crassicaulis, Toxicodendron diversilobum, Heracleum maximum (= Heracleum lanatum), Marah fabaceus, Ribes californicum, Heteromeles arbutifolia, and Ceanothus thyrsiflorus. Other species that may be included are Conium maculatum, Sambucus nigra ssp. cerulea (= Sambucus mexicana), Ribes sanguineum, Stellaria media, Galium aparine, Dryopteris arguta, Solanum douglasii, Maianthemum racemosum (= Smilacina racemosa), Clinopodium douglasii (= Satureja douglasii), Carduus pycnocephalus, Artemisia californica, Solanum xanti, Hesperocnide tenella, and Polystichum munitum. This association is often adjacent to Baccharis pilularis communities.

Dynamics:  No Data Available

Environmental Description:  Stands are found at low elevations on 4- to 13-degree slopes. Aspects are east-northeast to southwest on undulating lower to upper slopes. Soil textures range from moderately fine sandy clay loam to moderately coarse sandy loam.

Geographic Range: This shrubland association is currently only known from Point Reyes National Seashore in California. It is also reported from Los Padres National Forest. Additional range information will be added as it becomes available.

Nations: US

States/Provinces:  CA




Confidence Level: Low

Confidence Level Comments: No Data Available

Grank: G2

Greasons: No Data Available


Concept Lineage: No Data Available

Predecessors: No Data Available

Obsolete Names: No Data Available

Obsolete Parents: No Data Available

Synonomy: = Prunus ilicifolia / Sanicula crassicaulis Association (Schirokauer et al. 2003) [pi code 21251]
= Prunus ilicifolia ssp. Ilicifolia / Sanicula crassicaulis (Sawyer et al. 2009) [37.910.01]

Concept Author(s): Schirokauer et al. (2003)

Author of Description: T. Keeler-Wolf

Acknowledgements: No Data Available

Version Date: 05-06-10

  • Borchert, M. 2000. Draft descriptions of chaparral alliances from Los Padres National Forest, South Coast Ranges, California. Administrative review draft copy provided by author.
  • 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.
  • Schirokauer, D., T. Keeler-Wolf, J. Meinke, and P. van der Leeden. 2003. Plant community classification and mapping project. Point Reyes National Seashore, Golden Gate National Recreation Area, San Francisco Water Department Watershed Lands, Mount Tamalpais, Tomales Bay, and Samuel P. Taylor State Parks. Final report. California State Department of Fish and Game, Wildlife and Habitat Data Analysis Branch, Sacramento, National Park Service, Point Reyes Station, and Aerial Information Systems, Redlands, CA. 82 pp. [http://biology.usgs.gov/npsveg/pore_goga/index.html]
  • Skinner, M., and B. Pavlik. 1994. Inventory of rare and endangered vascular plants of California. California Native Plant Society. Special Publication, No. 1, Fifth edition. 174 pp.
  • Western Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Boulder, CO.