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CEGL008654 Calamagrostis breweri - Oreostemma alpigenum Grassland
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Shorthair Reedgrass - Tundra Aster Grassland
Colloquial Name: No Data Available
Hierarchy Level: Association
Type Concept: This herbaceous association is currently only known from Yosemite National Park in California, and the following description is based on occurrences there. Additional information will be added as it becomes available. Stands of this association occur on very gentle lower slopes and basin floors between 2440 and 3050 m (8000-10,000 feet) of elevation. Aspect is not important for the type as slopes seldom exceed 2%. Sites are seasonally saturated/flooded, and usually have perennial subsurface moisture. Soils are sandy to silt loams. This alpine/subalpine meadow association contains Calamagrostis breweri as the dominant grass in the herbaceous layer, with other graminoids such as Danthonia intermedia, Carex filifolia, Carex fissuricola, and Deschampsia cespitosa important species. Several other graminoids may be present at low cover values. Oreostemma alpigenum is the dominant forb, with the subshrub Vaccinium cespitosum present, but in low cover. Other forb associates may include Gentianopsis holopetala, Senecio scorzonella, Polygonum bistortoides, Ranunculus alismifolius, Sibbaldia procumbens, Ptilagrostis kingii, Muhlenbergia filiformis, Carex subnigricans, and/or Antennaria spp.
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: This alpine/subalpine meadow association contains Calamagrostis breweri as an important or dominant grass in the herbaceous layer, with other graminoids like Danthonia intermedia important canopy species. Oreostemma alpigenum (= Aster alpigenus) is the dominant forb, with the subshrub Vaccinium cespitosum present. Other associates may include, Carex spp., Polygonum bistortoides, Ptilagrostis kingii, Gentianopsis holopetala, Potentilla spp., Trisetum spicatum, and/or Antennaria spp.
Dynamics: No Data Available
Environmental Description: No Data Available
Geographic Range: This herbaceous association is currently only known from the eastern side of the Sierra Crest near Tenaya Lake, Tioga Pass, and Lee Vining Creek in Yosemite National Park in California. Additional range information will be added as it becomes available.
Nations: US
States/Provinces: CA
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.686983
Confidence Level: Low - Poorly Documented
Confidence Level Comments: No Data Available
Grank: GNR
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.2 Temperate Grassland & Shrubland Formation | F012 | 2.B.2 |
| Division | 2.B.2.Nf Western North American Grassland & Shrubland Division | D022 | 2.B.2.Nf |
| Macrogroup | 2.B.2.Nf.3 Tufted Hairgrass - Licorice-root species - Mountain Muhly Subalpine-High Montane Mesic Meadow Macrogroup | M168 | 2.B.2.Nf.3 |
| Group | 2.B.2.Nf.3.b Greenleaf Fescue - Tufted Hairgrass - Licorice-root species Rocky Mountain-Vancouverian Grassland & Meadow Group | G271 | 2.B.2.Nf.3.b |
| Alliance | A3364 Shorthair Reedgrass Mesic Grassland Alliance | A3364 | 2.B.2.Nf.3.b |
| Association | CEGL008654 Shorthair Reedgrass - Tundra Aster Grassland | CEGL008654 | 2.B.2.Nf.3.b |
Concept Lineage: No Data Available
Predecessors: No Data Available
Obsolete Names: No Data Available
Obsolete Parents: No Data Available
Synonomy: = Calamagrostis breweri - Aster alpigenum Association (Benedict 1983)
= Calamagrostis breweri - Oreostemma alpigenum var. alpigenum Herbaceous Vegetation [Provisional] (Keeler-Wolf et al. 2012)
= Calamagrostis breweri - Oreostemma alpigenum Association (Ratliff 1985)
= Calamagrostis breweri - Oreostemma alpigenum Herbaceous Vegetation (Keeler-Wolf 2002)
= Calamagrostis muiriana - Oreostemma alpigenum (Sawyer et al. 2009) [45.141.02]
= Calamagrostis breweri - Oreostemma alpigenum var. alpigenum Herbaceous Vegetation [Provisional] (Keeler-Wolf et al. 2012)
= Calamagrostis breweri - Oreostemma alpigenum Association (Ratliff 1985)
= Calamagrostis breweri - Oreostemma alpigenum Herbaceous Vegetation (Keeler-Wolf 2002)
= Calamagrostis muiriana - Oreostemma alpigenum (Sawyer et al. 2009) [45.141.02]
- Benedict, N. B. 1983. Plant associations of subalpine meadows, Sequoia National Park, California. Arctic and Alpine Research 15(3):383-396.
- Keeler-Wolf, T. 2002. Classification of the vegetation of Yosemite National Park and surrounding environs in Tuolumne, Mariposa, Madera and Mono counties, California. NatureServe in cooperation with the California Native Plant Society and California Natural Heritage Program, Wildlife and Habitat Data Analysis Branch, California Department of Fish and Game, Sacramento, CA. August 2002.
- Keeler-Wolf, T., M. Schindel, S. San, P. Moore, and D. Hickson. 2003a. Classification of the vegetation of Yosemite National Park and surrounding environs in Tuolumne, Mariposa, Madera and Mono counties, California. Unpublished report by NatureServe in cooperation with the California Native Plant Society and California Department of Fish and Game, Wildlife and Habitat Data Analysis Branch, Sacramento, CA.
- Keeler-Wolf, T., P. E. Moore, E. T. Reyes, J. M. Menke, D. N. Johnson, and D. L. Karavidas. 2012. Yosemite National Park vegetation classification and mapping project report. Natural Resource Technical Report NPS/YOSE/NRTR--2012/598. National Park Service, Fort Collins, CO.
- Potter, D. A. 2000. Riparian community type classification for the west slope central and southern Sierra Nevada, California. Unpublished manuscript available from D. Potter, Stanislaus National Forest, Sonora, CA.
- Ratliff, R. D. 1982. A meadow site classification for the Sierra Nevada, California. General Technical Report PSW-10. USDA Forest Service, Pacific Southwest Forest and Range Experiment Station, Berkeley, CA. 16 pp.
- Ratliff, R. D. 1985. Meadows in the Sierra Nevada of California: State of knowledge. General Technical Report PSW-84. USDA Forest Service, Pacific Southwest Forest and Range Experiment Station, Berkeley, CA. 52 pp.
- 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.
- Western Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Boulder, CO.