Print Report
CEGL000074 Pseudotsuga menziesii / Notholithocarpus densiflorus - Chrysolepis chrysophylla Forest
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Douglas-fir / Tanoak - Giant Chinquapin Forest
Colloquial Name: No Data Available
Hierarchy Level: Association
Type Concept: This forest association grows between 700-1150 m of elevation on all aspects. Stands are normally found on fairly flat topography on mid to upper slope positions. Sites are restricted to the drier portions of the western Siskiyou Mountains. Parent materials are metamorphosed sediments and volcanics, sometimes moderated serpentine. Pseudotsuga menziesii dominates the overstory tree canopy with some Pinus lambertiana present. Pseudotsuga menziesii, Notholithocarpus densiflorus, Arbutus menziesii, and Chrysolepis chrysophylla are all found in the understory canopy. Chimaphila umbellata is the most common shrub.
Diagnostic Characteristics: No Data Available
Rationale for Nominal Species or Physiognomic Features: No Data Available
Classification Comments: This association is based upon ecological plots from 7 stands.
Similar NVC Types: No Data Available
note: No Data Available
Physiognomy and Structure: No Data Available
Floristics: Pseudotsuga menziesii dominates the overstory tree canopy with some Pinus lambertiana present. Pseudotsuga menziesii, Notholithocarpus densiflorus (= Lithocarpus densiflorus), Arbutus menziesii, and Chrysolepis chrysophylla (= Castanopsis chrysophylla) are all found in the understory canopy. Chimaphila umbellata is the most common shrub.
Dynamics: No Data Available
Environmental Description: This forest association grows between 700-1150 m of elevation on all aspects. Stands are normally found on fairly flat topography on mid to upper slope positions. Sites are restricted to the drier portions of the western Siskiyou Mountains. Parent materials are metamorphosed sediments and volcanics, sometimes moderated serpentine.
Geographic Range: This association is only known from the western Siskiyou Mountains in southwestern Oregon and northwestern California.
Nations: US
States/Provinces: CA, OR
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.684663
Confidence Level: Low - Poorly Documented
Confidence Level Comments: No Data Available
Grank: G3
Greasons: No Data Available
| Type | Name | Database Code | Classification Code |
|---|---|---|---|
| Class | 1 Forest & Woodland Class | C01 | 1 |
| Subclass | 1.B Temperate & Boreal Forest & Woodland Subclass | S15 | 1.B |
| Formation | 1.B.1 Warm Temperate Forest & Woodland Formation | F018 | 1.B.1 |
| Division | 1.B.1.Nc Californian Forest & Woodland Division | D007 | 1.B.1.Nc |
| Macrogroup | 1.B.1.Nc.1 California Live Oak - California Laurel - Western Cypress species Forest & Woodland Macrogroup | M009 | 1.B.1.Nc.1 |
| Group | 1.B.1.Nc.1.c Douglas-fir - Tanoak - Pacific Madrone Forest Group | G208 | 1.B.1.Nc.1.c |
| Alliance | A0106 Douglas-fir - Tanoak Forest Alliance | A0106 | 1.B.1.Nc.1.c |
| Association | CEGL000074 Douglas-fir / Tanoak - Giant Chinquapin Forest | CEGL000074 | 1.B.1.Nc.1.c |
Concept Lineage: No Data Available
Predecessors: No Data Available
Obsolete Names: No Data Available
Obsolete Parents: No Data Available
Synonomy: = Chrysolepis chrysophylla/Xerophyllum tenax association (Stumpf et al. 2017)
- Atzet, T., and D. L. Wheeler. 1984. Preliminary plant associations of the Siskiyou Mountains Province, Siskiyou National Forest. USDA Forest Service, Pacific Northwest Region, Portland, OR.
- Bourgeron, P. S., and L. D. Engelking, editors. 1994. A preliminary vegetation classification of the western United States. Unpublished report. The Nature Conservancy, Western Heritage Task Force, Boulder, CO. 175 pp. plus appendix.
- Kagan, J. S., J. A. Christy, M. P. Murray, and J. A. Titus. 2004. Classification of native vegetation of Oregon. January 2004. Oregon Natural Heritage Information Center, Portland. 52 pp.
- Stumpf, K. A., Cogan Technology, and Kier Associates. 2017. Vegetation mapping and classification project: Redwood National and State Parks, California. Natural Resource Report NPS/REDW/NRR--2017/1431. National Park Service, Fort Collins, CO. 270 pp.
- Western Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Boulder, CO.