Print Report

CEGL003180 Arctostaphylos glandulosa - Quercus wislizeni Shrubland

Type Concept Sentence: No Data Available

Common (Translated Scientific) Name: Eastwood''s Manzanita - Interior Live Oak 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 at low elevations on the upper third or ridgetops of 15-22° slopes with south-southeast aspects. Soil textures range from generally moderately fine sandy clay loam to moderately coarse, sandy loam of sandstone or siltstone origin. These slopes are generally gravelly or cobbly. Most stands are above the average level of summer fog. Stands of this shrubland form an open understory herb layer and an open to continuous shrub layer. Arctostaphylos glandulosa and Quercus wislizeni are dominant. Lonicera hispidula, Aira caryophyllea, Diplacus aurantiacus, and Notholithocarpus densiflorus are also present. Additional species, contributing little cover, vary and may include Umbellularia californica, Adenostoma fasciculatum, Heteromeles arbutifolia, Melica torreyana, Galium nuttallii, Holcus lanatus, Pellaea mucronata, Ceanothus cuneatus, Bromus diandrus, Agrostis hallii, Iris sp., Ceanothus sp., Vaccinium ovatum, Lepechinia calycina, and Pteridium aquilinum. Quercus wislizeni may act as a shrub or a small tree in this association, probably reflecting varying moisture and fire history among stands.

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 shrubland form an open understory herb layer and an open to continuous shrub layer. Arctostaphylos glandulosa and Quercus wislizeni are dominant. Lonicera hispidula, Aira caryophyllea, Diplacus aurantiacus (= Mimulus aurantiacus), and Notholithocarpus densiflorus (= Lithocarpus densiflorus) are also present. Additional species, contributing little cover, vary and may include Umbellularia californica, Adenostoma fasciculatum, Heteromeles arbutifolia, Melica torreyana, Galium nuttallii, Holcus lanatus, Pellaea mucronata, Ceanothus cuneatus, Bromus diandrus, Agrostis hallii, Iris sp., Ceanothus sp., Vaccinium ovatum, Lepechinia calycina, and Pteridium aquilinum. Quercus wislizeni may act as a shrub or a small tree in this association, probably reflecting varying moisture and fire history among stands.

Dynamics:  No Data Available
Environmental Description:  This association is found at low elevations on the upper third or ridgetops of 15-22° slopes with south-southeast aspects. Soil textures range from generally moderately fine sandy clay loam to moderately coarse, sandy loam of sandstone or siltstone origin. These slopes are generally gravelly or cobbly. Most stands are above the average level of summer fog.
Geographic Range: This shrubland association is currently only known from Point Reyes National Seashore in California where it is apparently restricted to the Mount Tamalpais region of the Point Reyes and Golden Gate National Recreation Area. 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: G3

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 CEGL003180 Eastwood''s Manzanita - Interior Live Oak Shrubland CEGL003180 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: = Arctostaphylos glandulosa - Quercus wislizeni (Sawyer et al. 2009) [37.302.04]
= Arctostaphylos glandulosa-Quercus wislizenii Association (Keeler-Wolf et al. 2003b) [(21260)]
Concept Author(s): T. Keeler-Wolf et al. (2003b)

Author of Description: T. Keeler-Wolf

Acknowledgements: No Data Available

Version Date: 05-06-10
  • Keeler-Wolf, T., D. Schirokauer, J. Meinke, and P. van der Leeden. 2003b. Classification of the vegetation of Point Reyes National Seashore, Golden Gate National Recreation area, Samuel P. Taylor, Mount Tamalpais, and Tomales state parks, Marin, San Francisco, and San Mateo counties, California. California Department of Fish and Game, Wildlife Habitat Data Analysis Branch, 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.
  • 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.