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CEGL003176 Adenostoma fasciculatum - Arctostaphylos glandulosa - Ceanothus jepsonii / Calamagrostis ophitidis Shrubland
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Chamise - Eastwood''s Manzanita - Muskbush / Serpentine Reedgrass 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. This association is found on rocky convex/rounded ridgetops with southeast to south-southwest aspects. Slopes are 10-15°. Soil textures typically occur on moderately fine clay loam of ultramafic (serpentine) parent material. Stands typically lie above the average summer fog layer. This shrubland can vary in shrub structure ranging from 0.5 to 5 m tall, and the dominant species can vary in percent cover (e.g., Adenostoma fasciculatum can range from 20-70% cover). This association is dominated by Adenostoma fasciculatum. Arctostaphylos glandulosa, Ceanothus jepsonii, and/or Calamagrostis ophitidis, Heteromeles arbutifolia, Eriodictyon californicum are also in this association. Other species may include Iris douglasiana, Monardella sp., Poa secunda, Chlorogalum pomeridianum, Vulpia myuros, Aira caryophyllea, Madia exigua, and Agrostis hallii.
Diagnostic Characteristics: No Data Available
Rationale for Nominal Species or Physiognomic Features: No Data Available
Classification Comments: The Ceanothus jepsonii population found at Point Reyes has recently been described as a new species, Ceanothus decornutus (Parker 2014). The community name may eventually be changed to that.
Similar NVC Types: No Data Available
note: No Data Available
Physiognomy and Structure: No Data Available
Floristics: This shrubland can vary in shrub structure ranging from 0.5 to 5 m tall, and the dominant species can vary in percent cover (e.g., Adenostoma fasciculatum can range from 20-70% cover). This association is dominated by Adenostoma fasciculatum. Arctostaphylos glandulosa, Ceanothus jepsonii (= Ceanothus decornutus), and/or Calamagrostis ophitidis, Heteromeles arbutifolia, Eriodictyon californicum are also in this association. Other species may include Iris douglasiana, Monardella sp., Poa secunda, Chlorogalum pomeridianum, Vulpia myuros, Aira caryophyllea, Madia exigua, and Agrostis hallii.
Dynamics: No Data Available
Environmental Description: This association is found on rocky convex/rounded ridgetops with southeast to south-southwest aspects. Slopes are 10-15°. Soil textures typically occur on moderately fine clay loam of ultramafic (serpentine) parent material. Stands typically lie above the average summer fog layer.
Geographic Range: This association is only known from Point Reyes National Seashore, Golden Gate National Recreation Area and adjacent Mount Tamalpais State Park. Information about its global characteristics is not available without additional inventory. However, the limited extent of Calamagrostis ophitidis and Ceanothus jepsonii suggest that this association is restricted to Marin, and possibly Sonoma and Lake counties, California (Munz 1968).
Nations: US
States/Provinces: CA
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.685326
Confidence Level: Low
Confidence Level Comments: No Data Available
Grank: G2
Greasons: No Data Available
| Type | Name | Database Code | Classification Code |
|---|---|---|---|
| Class | 2 Shrub & Herb Vegetation Class | C02 | 2 |
| Subclass | 2.B Temperate & Boreal Grassland & Shrubland Subclass | S18 | 2.B |
| Formation | 2.B.1 Mediterranean Scrub & Grassland Formation | F038 | 2.B.1 |
| Division | 2.B.1.Na Californian Scrub & Grassland Division | D327 | 2.B.1.Na |
| Macrogroup | 2.B.1.Na.1 Chamise - Whiteleaf Manzanita - Scrub Oak Chaparral Macrogroup | M043 | 2.B.1.Na.1 |
| Group | 2.B.1.Na.1.b Scrub Oak - Eastwood''s Manzanita - California Ash Chaparral Group | G261 | 2.B.1.Na.1.b |
| Alliance | A3860 Scrub Interior Live Oak - Eastwood''s Manzanita Pre-montane Chaparral Alliance | A3860 | 2.B.1.Na.1.b |
| Association | CEGL003176 Chamise - Eastwood''s Manzanita - Muskbush / Serpentine Reedgrass Shrubland | CEGL003176 | 2.B.1.Na.1.b |
Concept Lineage: No Data Available
Predecessors: No Data Available
Obsolete Names: No Data Available
Obsolete Parents: No Data Available
Synonomy: = Adenostoma fasciculatum - Arctostaphylos glandulosa - Ceanothus jepsonii / Calamagrostis ophitidis (Sawyer et al. 2009) [37.101.32]
? Adenostoma fasciculatum - Arctostaphylos glandulosa - Quercus wislizeni Association (Schirokauer et al. 2003) [pi code 21140]
? Adenostoma fasciculatum - Arctostaphylos glandulosa - Quercus wislizeni Association (Schirokauer et al. 2003) [pi code 21140]
- Munz, P. A. 1968. A California flora and supplement. University of California Press, Berkeley CA.
- Parker, V. T. 2014. A newly described serpentine-endemic Ceanothus (Rhamnaceae) from coastal Marin County, California. Madroño 61(4):399-406.
- 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]
- Western Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Boulder, CO.