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CEGL000048 Chamaecyparis lawsoniana / Vaccinium ovatum Forest
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Port Orford-cedar / California Huckleberry Forest
Colloquial Name: No Data Available
Hierarchy Level: Association
Type Concept: This naturally rare, edaphically specialized, coniferous forest is extremely limited in range. Only a few stands are known from southwestern Oregon, but it possibly occurs in adjacent California. Stands average about 150 m elevation, and only grow upon the Blacklock Soil Series which contains an ironpan. This soil limits the size of individuals and diversity of species. The tree canopy is dominated by Chamaecyparis lawsoniana which approaches 60% cover in the densest areas, but averages much less. Saplings of Chamaecyparis lawsoniana, Tsuga heterophylla, and Pseudotsuga menziesii have an accumulative cover of nearly 100%, but the many dead and dying saplings reduce the actual cover to 65%. The shrub layer is well-developed and strongly dominated by Vaccinium ovatum with Gaultheria shallon and Morella californica also well-represented. Scattered herbs grow beneath the shrubs. The most common is Maianthemum dilatatum. Several common ferns, particularly Pteridium aquilinum, are also present.
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: The tree canopy is dominated by Chamaecyparis lawsoniana which approaches 60% cover in the densest areas, but averages much less. Saplings of Chamaecyparis lawsoniana, Tsuga heterophylla, and Pseudotsuga menziesii have an accumulative cover of nearly 100%, but the many dead and dying saplings reduce the actual cover to 65%. The shrub layer is well-developed and strongly dominated by Vaccinium ovatum with Gaultheria shallon and Morella californica (= Myrica californica) also well-represented. Accumulative cover of the shrubs approaches 200%, and actual cover is about 90%. Scattered herbs grow beneath the shrubs. The most common is Maianthemum dilatatum. Several common ferns, particularly Pteridium aquilinum, are also present.
Dynamics: No Data Available
Environmental Description: This naturally rare, edaphically specialized, coniferous forest is extremely limited in range.Stands average about 150 m elevation, and only grow upon the Blacklock Soil Series which contains an ironpan. This soil limits the size of individuals and diversity of species.
Geographic Range: This association is restricted to stabilized coastal dunes in southwestern Oregon, with known sites in Coos County, but it possibly occurs in adjacent California.
Nations: US
States/Provinces: CA?, OR
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.684197
Confidence Level: Low
Confidence Level Comments: No Data Available
Grank: G1
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.2 Cool Temperate Forest & Woodland Formation | F008 | 1.B.2 |
| Division | 1.B.2.Nd Vancouverian Forest & Woodland Division | D192 | 1.B.2.Nd |
| Macrogroup | 1.B.2.Nd.3 Western Hemlock - Sitka Spruce - Redwood Rainforest Macrogroup | M024 | 1.B.2.Nd.3 |
| Group | 1.B.2.Nd.3.a Redwood Forest Group | G235 | 1.B.2.Nd.3.a |
| Alliance | A0104 Port Orford-cedar Forest Alliance | A0104 | 1.B.2.Nd.3.a |
| Association | CEGL000048 Port Orford-cedar / California Huckleberry Forest | CEGL000048 | 1.B.2.Nd.3.a |
Concept Lineage: No Data Available
Predecessors: No Data Available
Obsolete Names: No Data Available
Obsolete Parents: No Data Available
Synonomy: = Port Orford Cedar / Evergreen Huckleberry Forest (Chamaecyparis lawsoniana / Vaccinium ovatum) (Christy et al. 1998) [(p.40)]
? Port-Orford-Cedar / Evergreen Huckleberry / Sword Fern Association (Randall 1996)
? Tanoak - Port Orford Cedar / Evergreen Huckleberry Association (Jimerson 1994)
? Port-Orford-Cedar / Evergreen Huckleberry / Sword Fern Association (Randall 1996)
? Tanoak - Port Orford Cedar / Evergreen Huckleberry Association (Jimerson 1994)
- 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.
- Christy, J. A., J. S. Kagan, and A. M. Wiedemann. 1998. Plant associations of the Oregon Dunes National Recreation Area - Siuslaw National Forest, Oregon. Technical Paper R6-NR-ECOL-TP-09-98. USDA Forest Service, Pacific Northwest Region, Portland, OR. 196 pp.
- Hawk, G. M. 1977. A comparative study of temperate Chamaecyparis forests. Unpublished dissertation, Oregon State University, Corvallis. 194 pp.
- Jimerson, T. J. 1994. A field guide to the Port Orford cedar plant associations in northwestern California. Pacific Southwest Research Station PSW-R5-ECOL-TP-OO2. Six Rivers National Forest, Eureka, CA. 109 pp.
- 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.
- ORNHP [Oregon Natural Heritage Program]. No date. Unpublished data files. Oregon Natural Heritage Program, The Nature Conservancy, Portland, OR.
- Randall, V. D. 1996. Port-Orford-cedar series. Pages CHLA1-CHAL21 in: T. Atzet, D. E. White, L. A. McCrimmon, P. A. Martinez, P. R. Fong, and V. D. Randall. Field guide to the forested plant associations of southwestern Oregon. Technical Paper R6-NR-ECOL-TP-17-96. USDA Forest Service, Pacific Northwest Research Station, Portland, OR.
- Western Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Boulder, CO.