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CEGL005388 Carex siccata - Carex rossii Grassland
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Dry-spike Sedge - Ross'' Sedge Grassland
Colloquial Name: No Data Available
Hierarchy Level: Association
Type Concept: This high-elevation sedge herbaceous association is currently described from Grand Canyon National Park in Arizona. More survey and classification work are needed to fully characterize this type. It occurs from 2467 to 2688 m (8094-8819 feet) elevation, predominantly on the high-level plateau, on south- and west-facing slopes. Slopes are quite gentle, averaging 7°. Soils are well-drained or rapidly-drained silt loams. There is evidence of fairly recent, high-severity fire in all observed stands. This is a somewhat variable association but is characterized by a lack of tree cover, a very sparse shrub layer, and the dominance of Carex rossii and Carex siccata in the understory. Short shrubs are very uncommon and sparse, with the occasional small patch of Robinia neomexicana. Dwarf-shrubs are also sparse; however, Ceanothus fendleri is quite frequent. Carex rossii dominates the understory. Bromus tectorum and Elymus elymoides are also common at very low cover. Disturbance-adapted Erigeron divergens, Chenopodium sp., Gayophytum diffusum, Pseudognaphalium macounii, and Conyza canadensis are common forbs.
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: No Data Available
Environmental Description: No Data Available
Geographic Range: This association is currently known from Grand Canyon National Park in Arizona. More survey work is needed to fully document its global range.
Nations: US
States/Provinces: AZ
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.827935
Confidence Level: Low
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.a Arizona Fescue - Thurber''s Fescue - Mountain Muhly Grassland Group | G268 | 2.B.2.Nf.3.a |
| Alliance | A3953 Arizona Fescue - Mountain Muhly - Muttongrass Southern Rocky Mountain Montane Grassland Alliance | A3953 | 2.B.2.Nf.3.a |
| Association | CEGL005388 Dry-spike Sedge - Ross'' Sedge Grassland | CEGL005388 | 2.B.2.Nf.3.a |
Concept Lineage: No Data Available
Predecessors: No Data Available
Obsolete Names: No Data Available
Obsolete Parents: No Data Available
Synonomy: = Carex siccata - Carex rossii Herbaceous Vegetation (Reid and Hall 2010)
- Kearsley, M. J. C., K. Green, M. Tukman, M. Reid, M. Hall, T. J. Ayers, and K. Christie. 2015. Grand Canyon National Park-Grand Canyon / Parashant National Monument vegetation classification and mapping project. Natural Resource Report NPS/GRCA/NRR--2015/913. National Park Service, Fort Collins, CO. 75 pp. plus appendices.
- Reid, M. S., and M. E. Hall. 2010. Vegetation classification of Grand Canyon National Park. Draft report submitted to National Park Service, Fort Collins, CO.
- Western Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Boulder, CO.