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CEGL003178 Adenostoma fasciculatum - Diplacus aurantiacus Shrubland
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Chamise - Orange Bush-monkeyflower Shrubland
Colloquial Name: No Data Available
Hierarchy Level: Association
Type Concept: This shrubland association occurs on steep to very steep northeast-facing slopes at low elevations between 277 and 488 m in central and southern coastal California. It is dominated by Adenostoma fasciculatum with lesser cover of Diplacus aurantiacus in the shrub layer, with little distinguishing the herbaceous layer. The emergent tree layer includes Quercus agrifolia.
Diagnostic Characteristics: No Data Available
Rationale for Nominal Species or Physiognomic Features: No Data Available
Classification Comments: The association named Adenostoma fasciculatum - Diplacus aurantiacus was first described from the outer Coast Ranges of northern California in Marin County (Keeler-Wolf et al. 2003b). Although it differs to some degree in the species composition from the Santa Monica Mountains version, it is essentially similar in that it occurs near or in the coastal fog zone within only a mile or two of the ocean. It stands to reason that the more northerly expression of this association is more restricted to south-facing slopes and in otherwise relatively more xeric settings than the southern California expression where there is less rainfall and warmer temperatures.
Similar NVC Types: No Data Available
note: No Data Available
Physiognomy and Structure: No Data Available
Floristics: In Marin County (Keeler-Wolf et al. 2003b), stands of this shrubland association are dominated by Adenostoma fasciculatum. Diplacus aurantiacus (= Mimulus aurantiacus) covers 1 to 20% of the stand. Also common in this association are the small non-native grasses Aira caryophyllea and Gastridium phleoides (= Gastridium ventricosum). Other shrubs and understory herbs vary but may include Melica californica, Hypericum concinnum, Nassella pulchra, Nassella lepida, Avena barbata, Zigadenus fremontii, Chlorogalum pomeridianum, Pleuropogon californicus, Bromus rubens (= Bromus madritensis ssp. rubens), Cynosurus echinatus, and Baccharis pilularis. Umbellularia californica may also be present.
Dynamics: No Data Available
Environmental Description: In Marin County (Keeler-Wolf et al. 2003b), this association is found on the upper third of rocky, 16-30° angle, south-facing slopes. Soil textures range from medium loam to moderately coarse sandy loam of sandstone origin. Most stands are above the average summer fog layer.
Geographic Range: This association is known from the Santa Monica Mountains and from Point Reyes National Seashore, Marin County. Information about its global distribution is not available without additional inventory; however, it likely occurs elsewhere in the coastal mountains of California. Similar stands with these two characteristic species occur in Alameda and Contra Costa counties of central coastal California. It is likely that this association is more widespread in central coastal California.
Nations: US
States/Provinces: CA
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.690044
Confidence Level: Moderate
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.a Chamise - Buckbrush - Sticky Whiteleaf Manzanita Xeric Chaparral Group | G257 | 2.B.1.Na.1.a |
| Alliance | A3868 Chamise Chaparral Alliance | A3868 | 2.B.1.Na.1.a |
| Association | CEGL003178 Chamise - Orange Bush-monkeyflower Shrubland | CEGL003178 | 2.B.1.Na.1.a |
Concept Lineage: No Data Available
Predecessors: No Data Available
Obsolete Names: No Data Available
Obsolete Parents: No Data Available
Synonomy: = Adenostoma fasciculatum - Diplacus aurantiacus (Sawyer et al. 2009) [37.101.12]
= Adenostoma fasciculatum - Mimulus aurantiacus Association (Schirokauer et al. 2003) [pi code 21142]
= Adenostoma fasciculatum-Mimulus aurantiacus Shrubland Association (Keeler-Wolf and Evens 2006)
= Adenostoma fasciculatum - Mimulus aurantiacus Association (Schirokauer et al. 2003) [pi code 21142]
= Adenostoma fasciculatum-Mimulus aurantiacus Shrubland Association (Keeler-Wolf and Evens 2006)
- 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.
- 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.
- 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.