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CEGL000437 Pseudotsuga menziesii / Holodiscus discolor / Carex geyeri Forest
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Douglas-fir / Oceanspray / Geyer''s Sedge Forest
Colloquial Name: No Data Available
Hierarchy Level: Association
Type Concept: This association is reported from the east side of the Cascades in Oregon and Washington. Riparian geomorphic surfaces on which it occurs are terraces that are very infrequently (if ever) flooded. Valleys are south to southwest-facing, narrow, steep to very steep and V-shaped with gentle sideslopes. Valleys are south-facing. Water tables depth are probably well below the rooting zone throughout the growing season. Pseudotsuga menziesii is the dominant overstory conifer and can be either dense or scattered. The shrub overstory (averaging 3 m in height) is dominated by Holodiscus discolor, and the shrub understory (averaging 1 m in height) is dominated by a Symphoricarpos albus with occasional scattered Spiraea betulifolia, Ribes lacustre, Rosa woodsii, and Rosa gymnocarpa. The herbaceous layer (averaging 31 cm in height) is dominated by graminoids, generally either Carex geyeri or Calamagrostis rubescens, with scattered grasses and forbs at low cover such as Elymus glaucus, Viola canadensis, Galium triflorum, Maianthemum stellatum, and Prosartes trachycarpa. This association is not expected to succeed to another unless there is an abundance of white fir or grand fir seedlings found on the site. Moderate- to high-intensity fires will kill Pseudotsuga menziesii but not the associated shrubs, which will resprout vigorously from root crowns following fires.
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: No Data Available
Dynamics: This association is not expected to succeed to another unless there is an abundance of white fir or grand fir seedlings found on the site. Moderate- to high-intensity fires will kill Pseudotsuga menziesii but not the associated shrubs, which will resprout vigorously from root crowns following fires.
Environmental Description: No Data Available
Geographic Range: This association is reported from the east side of the Cascades in Oregon and Washington.
Nations: US
States/Provinces: OR, WA
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.683787
Confidence Level: Low
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.2 Cool Temperate Forest & Woodland Formation | F008 | 1.B.2 |
| Division | 1.B.2.Nb Rocky Mountain Forest & Woodland Division | D194 | 1.B.2.Nb |
| Macrogroup | 1.B.2.Nb.2 Ponderosa Pine - Douglas-fir - Limber Pine Central Rocky Mountain Dry Forest Macrogroup | M501 | 1.B.2.Nb.2 |
| Group | 1.B.2.Nb.2.b Douglas-fir - Ponderosa Pine Central Rocky Mountain Forest Group | G210 | 1.B.2.Nb.2.b |
| Alliance | A3392 Douglas-fir - Ponderosa Pine / Shrub Understory Central Rocky Mountain Forest & Woodland Alliance | A3392 | 1.B.2.Nb.2.b |
| Association | CEGL000437 Douglas-fir / Oceanspray / Geyer''s Sedge Forest | CEGL000437 | 1.B.2.Nb.2.b |
Concept Lineage: No Data Available
Predecessors: No Data Available
Obsolete Names: No Data Available
Obsolete Parents: No Data Available
Synonomy: = Pseudotsuga menziesii / Holodiscus discolor / Carex geyeri (Topik et al. 1988) [(p.59)]
= Pseudotsuga menziesii / Holodiscus discolor Association (Crowe et al. 2004)
= Pseudotsuga menziesii / Holodiscus discolor Association (Crowe et al. 2004)
- Agee, J. K., and J. Kertis. 1987. Forest types of the north Cascades National Park Service complex. Canadian Journal of Botany 65:1520-1530.
- 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.
- Crowe, E. A., B. L. Kovalchik, and M. J. Kerr. 2004. Riparian and wetland vegetation of central and eastern Oregon. Oregon Natural Heritage Information Center, Institute for Natural Resources, Oregon State University, Portland. 473 pp. [http://oregonstate.edu/ornhic/ publications.html]
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- Dyrness, C. T., J. F. Franklin, and C. Maser. 1974b. Wheeler Creek Research Natural Area. Supplement #1 to "Federal Research Natural Areas in Oregon and Washington. A guidebook for scientists and educators" by Franklin, J. F., F. C. Hall, C. T. Dryness, and C. Maser. USDA Forest Service.
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- Topik, C., N. M. Halverson, and T. High. 1988. Plant associations and management guide of the ponderosa pine, Douglas-fir, and grand fir zone, Mt. Hood National Forest. R6-ECOL-TP-004-88. USDA Forest Service, Pacific Northwest Region, Portland, OR. 136 pp.
- WNHP [Washington Natural Heritage Program]. 2018. Unpublished data files. Washington Natural Heritage Program, Department of Natural Resources, Olympia, WA.
- Western Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Boulder, CO.