Print Report
CEGL003010 Arctostaphylos tomentosa ssp. tomentosa Shrubland
Type Concept Sentence: Diverse chaparral shrubland found along the central coastal region of California dominated by evergreen, sclerophyllous Arctostaphylos tomentosa and its subspecies.
Common (Translated Scientific) Name: Woolly-leaf Manzanita Shrubland
Colloquial Name: No Data Available
Hierarchy Level: Association
Type Concept: This shrubland is known to occur along the central coastal region of California, from Sonoma County south along the coast to northern Santa Barbara County. This chaparral vegetation type is found from sea level to 1500 m elevation in scattered localities along the central coast of California. This region is climatically characterized by year-round mild temperatures, due to the strong maritime influence. Precipitation is relatively low, ranging from 30-60 cm, and occurs during the winter months, typically in a few intense storms. Summers are dry, with prolonged periods of drought not uncommon. This vegetation type apparently occurs within the zone of summer coastal fog incursion. Sites are variable and include bluffs, dunes, mesas, outcrops, slopes and terraces. Soils are coarse-textured (sand or loams), occasionally rocky, well-drained, and can be derived from sand, sandstone, shales or volcanic substrates. This diverse chaparral shrubland is dominated by broad-leaved evergreen sclerophyllous shrubs, typically less than 3 m in height. Subspecies of Arctostaphylos tomentosa are dominant or important in the shrub canopy, such as Arctostaphylos tomentosa ssp. bracteosa, Arctostaphylos tomentosa ssp. crustacea, Arctostaphylos tomentosa ssp. daciticola, Arctostaphylos tomentosa ssp. eastwoodiana, and Arctostaphylos tomentosa ssp. tomentosa. Other species of Arctostaphylos are often present, as well as various species of Ceanothus, such as Ceanothus cuneatus var. fascicularis, Ceanothus dentatus, Ceanothus hearstiorum, and Ceanothus impressus. Other shrubs commonly present include Salvia mellifera, Eriogonum fasciculatum, Frangula californica, Artemisia californica, Baccharis pilularis, Toxicodendron diversilobum, and Heteromeles arbutifolia. Total canopy cover of the shrubs ranges from 50-100%. The small (from 8-20 m tall) broad-leaved evergreen trees Quercus agrifolia and Cercocarpus montanus var. glaber may be present as emergents from the shrub canopy. The herbaceous layer is sparse.
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 diverse chaparral shrubland is dominated by broad-leaved evergreen sclerophyllous shrubs, typically less than 3 m in height. Subspecies of Arctostaphylos tomentosa are dominant or important in the shrub canopy, such as Arctostaphylos tomentosa ssp. bracteosa, Arctostaphylos tomentosa ssp. crustacea, Arctostaphylos tomentosa ssp. daciticola, Arctostaphylos tomentosa ssp. eastwoodiana, and Arctostaphylos tomentosa ssp. tomentosa. Other species of Arctostaphylos are often present, as well as various species of Ceanothus, such as Ceanothus cuneatus var. fascicularis, Ceanothus dentatus, Ceanothus hearstiorum, and Ceanothus impressus. Other shrubs commonly present include Salvia mellifera, Eriogonum fasciculatum, Frangula californica, Artemisia californica, Baccharis pilularis, Toxicodendron diversilobum, and Heteromeles arbutifolia. Total canopy cover of the shrubs ranges from 50-100%. The small (from 8-20 m tall) broad-leaved evergreen trees Quercus agrifolia and Cercocarpus montanus var. glaber may be present as emergents from the shrub canopy. The herbaceous layer is sparse. Many of the Arctostaphylos and Ceanothus species present in this vegetation type are endemic to this region of California and are considered rare. Nineteen other species of Arctostaphylos are listed as occurring in this chaparral type.
Dynamics: No Data Available
Environmental Description: This chaparral vegetation type is found from sea level to 1500 m elevation in scattered localities along the central coast of California. This region is climatically characterized by year-round mild temperatures, due to the strong maritime influence. Precipitation is relatively low, ranging from 30-60 cm, and occurs during the winter months, typically in a few intense storms. Summers are dry, with prolonged periods of drought not uncommon. This vegetation type apparently occurs within the zone of summer coastal fog incursion. Sites are variable and include bluffs, dunes, mesas, outcrops, slopes and terraces. Soils are coarse-textured (sand or loams), occasionally rocky, well-drained, and can be derived from sand, sandstone, shales or volcanic substrates.
Geographic Range: This shrubland is known to occur along the central coastal region of California, from Sonoma County south along the coast to northern Santa Barbara County.
Nations: US
States/Provinces: CA
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.688819
Confidence Level: Low
Confidence Level Comments: No Data Available
Grank: G4?
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.c Woolly-leaf Manzanita - Glossyleaf Manzanita - Barranca Brush Maritime Chaparral Group | G258 | 2.B.1.Na.1.c |
| Alliance | A3858 Brittleleaf Manzanita - Woolly-leaf Manzanita Central Coast & Island Chaparral Alliance | A3858 | 2.B.1.Na.1.c |
| Association | CEGL003010 Woolly-leaf Manzanita Shrubland | CEGL003010 | 2.B.1.Na.1.c |
Concept Lineage: No Data Available
Predecessors: No Data Available
Obsolete Names: No Data Available
Obsolete Parents: No Data Available
Synonomy: < Arctostaphylos (crustacea, tomentosa) Shrubland Alliance (Sawyer et al. 2009) [37.308.00]
< Arctostaphylos (crustacea, tomentosa) Shrubland Alliance (Sawyer and Keeler-Wolf 1995)
= Arctostaphylos crustacea Association (Rodriguez et al. 2017)
< Arctostaphylos (crustacea, tomentosa) Shrubland Alliance (Sawyer and Keeler-Wolf 1995)
= Arctostaphylos crustacea Association (Rodriguez et al. 2017)
- Davis, C. B. 1972. Comparative ecology of six members of the Arctostaphylos andersonii complex. Unpublished dissertation, University of California, Davis. 155 pp.
- Rodriguez, D., K. G. Sikes, T. Keeler-Wolf, G. Kittel, J. Curtis, C. Curley, and J. Evens. 2017. Vegetation classification of Channel Islands National Park. Report to the National Park Service, Fort Collins, CO.
- 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.
- Sawyer, J. O., and T. Keeler-Wolf. 1995. A manual of California vegetation. California Native Plant Society, Sacramento. 471 pp.
- Wells, P. V. 1962. Vegetation in relation to geological substratum and fire in the San Luis Obispo Quadrangle, California. Ecological Monographs 32:79-103.
- Western Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Boulder, CO.