Print Report
CEGL001607 Danthonia californica - Festuca idahoensis Wet Meadow
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: California Oatgrass - Idaho Fescue Wet Meadow
Colloquial Name: No Data Available
Hierarchy Level: Association
Type Concept: These communities are known from gently rolling basalt and rhyolitic plateaus of the Owyhee Uplands and Blue Mountains ecoregional sections in Idaho and Oregon. Stands are frequently observed in shallow, cobbly ephemeral washes. Shallow ashy loess and clay soils are intermixed with abundant cobbles and stones and overlay an impervious claypan or bedrock. Elevation ranges from 1220-1830 m (4000-6000 feet). Species composition is documented from relatively few stands. Herbaceous cover is typically low. Danthonia californica, Festuca idahoensis, and Poa secunda occur with varying abundance. Associated herbaceous species are Pyrrocoma uniflora, Arenaria congesta, Erigeron chrysopsidis, Eriogonum caespitosum, and Epilobium brachycarpum. Danthonia californica associations of southwestern Oregon and California are differentiated from stands of this association on the basis of the presence of Festuca idahoensis ssp. roemeri.
Diagnostic Characteristics: No Data Available
Rationale for Nominal Species or Physiognomic Features: No Data Available
Classification Comments: The association is reported from a range of different environmental settings. Variation in species composition is currently not well understood and requires further investigation. Inventory data for the Owyhee Plateau region of southwestern Idaho support the recognition of at least two Danthonia californica-dominated associations within the range of Danthonia californica - Festuca idahoensis. One occurs on ephemeral wash sites; the other in broad, ephemeral wet-meadows (Jankovsky-Jones et al. 2001). Stands described by Kagan (1987a) located at Zumwalt Prairie are similar to the ephemeral wash sites of the Owyhee Plateau. These communities are differentiated from the more widespread and abundant Danthonia californica associations of southwestern Oregon and California on the basis of the presence of Festuca idahoensis ssp. roemeri.
Similar NVC Types: No Data Available
note: No Data Available
Physiognomy and Structure: No Data Available
Floristics: Herbaceous cover is typically low. Danthonia californica, Festuca idahoensis, and Poa secunda occur with varying abundance. Associated herbaceous species are Pyrrocoma uniflora (= Haplopappus uniflorus), Arenaria congesta, Erigeron chrysopsidis, Eriogonum caespitosum, and Epilobium brachycarpum (= Epilobium paniculatum).
Dynamics: No Data Available
Environmental Description: Stands are frequently observed in shallow, cobbly ephemeral washes. Shallow ashy loess and clay soils are intermixed with abundant cobbles and stones and overlay an impervious claypan or bedrock. Elevation ranges from 1220-1830 m (4000-6000 feet).
Geographic Range: The association is known from basalt and rhyolitic plateaus of the Owyhee Uplands and Blue Mountains ecoregional sections in Idaho and Oregon.
Nations: US
States/Provinces: ID, OR
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.683543
Confidence Level: Moderate
Confidence Level Comments: No Data Available
Grank: G1Q
Greasons: No Data Available
| Type | Name | Database Code | Classification Code |
|---|---|---|---|
| Class | 2 Shrub & Herb Vegetation Class | C02 | 2 |
| Subclass | 2.C Shrub & Herb Wetland Subclass | S44 | 2.C |
| Formation | 2.C.4 Temperate to Polar Freshwater Marsh, Wet Meadow & Shrubland Formation | F013 | 2.C.4 |
| Division | 2.C.4.Nb Western North American Temperate Freshwater Marsh, Wet Meadow & Shrubland Division | D031 | 2.C.4.Nb |
| Macrogroup | 2.C.4.Nb.5 Sitka Alder - Booth''s Willow / Northwest Territory Sedge Montane Marsh, Wet Meadow & Shrubland Macrogroup | M893 | 2.C.4.Nb.5 |
| Group | 2.C.4.Nb.5.b Sedge species - Reedgrass species Montane Wet Meadow & Marsh Group | G521 | 2.C.4.Nb.5.b |
| Alliance | A3814 Oatgrass species - Camas species Wet Meadow Alliance | A3814 | 2.C.4.Nb.5.b |
| Association | CEGL001607 California Oatgrass - Idaho Fescue Wet Meadow | CEGL001607 | 2.C.4.Nb.5.b |
Concept Lineage: No Data Available
Predecessors: No Data Available
Obsolete Names: No Data Available
Obsolete Parents: No Data Available
Synonomy: = Danthonia californica Association (Jankovsky-Jones et al. 2001)
- Borgais, D. 1990. Unpublished data from Roundtop Butte Preserve. Data on file at Oregon Natural Heritage Program, 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.
- IDCDC [Idaho Conservation Data Center]. 2005. Wetland and riparian plant associations in Idaho. Idaho Conservation Data Center, Idaho Department of Fish and Game, Boise. [http://fishandgame.idaho.gov/tech/CDC/ecology/wetland_riparian_assoc.cfm] (accessed 14 June 2005).
- Jankovsky-Jones, M., C. J. Murphy, and C. L. Coulter. 2001. Riparian and wetland plant associations of southwestern Idaho in the Lower Snake River District, Bureau of Land Management. Idaho Conservation Data Center, Idaho Department of Fish and Game, Boise.
- Kagan, J. 1987a. National Natural Landmark Evaluation, Finley Buttes Grassland (Oregon), Columbia Plateau Natural Region, Lowland and Valley Grassland Theme, Lowland Grasslands Subtheme. Unpublished report prepared for USDI National Park Service. Oregon Natural Heritage Database, Portland.
- Kagan, J. S. 1989a. Draft species management for Clintonia andrewsiana. Challenge Cost/Share for USDA Forest Service. Unpublished document on file at Oregon Natural Heritage Data Base, Portland, OR.
- 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.
- Western Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Boulder, CO.