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CEGL003128 Salix eastwoodiae / Deschampsia cespitosa Wet Shrubland

Type Concept Sentence: No Data Available


Common (Translated Scientific) Name: Mountain Willow / Tufted Hairgrass Wet Shrubland

Colloquial Name: No Data Available

Hierarchy Level:  Association

Type Concept: This willow association is found in the upper montane, subalpine, and alpine locations, predominantly occurring throughout the central and southern Sierra Nevada. Stands are generally moderate to large in size for riparian communities, often covering several acres. Stands of this shrubland are found adjacent to or near streambanks in mesic to wet meadows at mid to high elevations (2110-3350 m [6920-11,000 feet]). Slopes are gentle to moderate (5-20%). They often appear in basins or as stringer meadows with streams present. These sites are at the bottom of broad to very broad valleys with moderate upland slopes and variable valley bottom gradients. This association is often found near first-order streams within the upper portions of mountain drainages. Slopes are usually convex in shape. Stands are formed on volcanic flows and glaciated granitic batholiths. The stands are seasonally to permanently saturated. Water typically is received by subsurface and overland flows from upstream slopes or upslope on a seasonal basis. Along streams, these stands can be seasonally flooded; however, the association does not appear to be significantly influenced by streamside disturbance. Stands form a two-story structure with a moderately open to intermittent low to moderately tall shrub layer dominated by Salix eastwoodiae. The understory herbaceous layer can be well-developed with openings in the shrub layer occur. A variety of species found in the herbaceous layer includes Oreostemma alpigenum, Mimulus primuloides, Polygonum bistortoides, Allium validum, Perideridia parishii, Deschampsia cespitosa, Carex scopulorum, Trisetum spicatum, Carex subnigricans, Phleum alpinum, Calamagrostis breweri, and Calamagrostis canadensis. Moss is commonly found in this association.

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: Stands form a two-story structure with a moderately open to intermittent low to moderately tall shrub layer dominated by Salix eastwoodiae. The understory herbaceous layer can be well-developed with openings in the shrub layer occur. A variety of species found in the herbaceous layer includes Oreostemma alpigenum (= Aster alpigenus), Mimulus primuloides, Polygonum bistortoides, Allium validum, Perideridia parishii, Deschampsia cespitosa, Carex scopulorum, Trisetum spicatum, Carex subnigricans, Phleum alpinum, Calamagrostis breweri, and Calamagrostis canadensis. Moss is commonly found in this association (Potter 2000).

Dynamics:  No Data Available

Environmental Description:  Stands of this shrubland are found adjacent to or near streambanks in mesic to wet meadows at mid to high elevations (2110-3350 m [6920-11,000 feet]). Slopes are gentle to moderate (5-20%). They often appear in basins or as stringer meadows with streams present. These sites are at the bottom of broad to very broad valleys with moderate upland slopes and variable valley bottom gradients. This association is often found near first-order streams within the upper portions of mountain drainages. Slopes are usually convex in shape. Stands are formed on volcanic flows and glaciated granitic batholiths. The stands are seasonally to permanently saturated. Water typically is received by subsurface and overland flows from upstream slopes or upslope on a seasonal basis. Along streams, these stands can be seasonally flooded; however, the association does not appear to be significantly influenced by streamside disturbance (Potter 2000).

Geographic Range: This association is found in the upper montane, subalpine, and alpine locations, predominantly occurring throughout the central and southern Sierra Nevada. Stands are generally moderate to large in size for riparian, often covering several acres (Potter 2000).

Nations: US

States/Provinces:  CA, OR




Confidence Level: Low

Confidence Level Comments: No Data Available

Grank: G3G4

Greasons: No Data Available


Concept Lineage: No Data Available

Predecessors: No Data Available

Obsolete Names: No Data Available

Obsolete Parents: No Data Available

Synonomy: = Salix eastwoodiae / Deschampsia caespitosa Shrubland (Keeler-Wolf 2002)
= Salix eastwoodiae / Senecio triangularis association (Odion et al. 2013)
? Salix eastwoodiae / Senecio triangularis (Sawyer et al. 2009) [61.112.02]
? Salix eastwoodiae (Sawyer et al. 2009) [61.112.01]
= Salix eastwoodiae Seasonally Flooded Shrubland (Keeler-Wolf et al. 2012)

Concept Author(s): T. Keeler-Wolf (2002)

Author of Description: T. Keeler-Wolf

Acknowledgements: No Data Available

Version Date: 02-19-03

  • 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.
  • Odion, D. C., D. A. DiPaolo, L. C. Groshong, D. A. Sarr, and S. Mohren. 2013. Vegetation Inventory Project: Oregon Caves National Monument and proposed expansion area. Natural Resource Technical Report NPS/ORCA/NRTR--2013/782. National Park Service, Fort Collins, CO. 272 pp.
  • 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.
  • 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.
  • Taylor, D. W. 1984. Vegetation of the Harvey Monroe Hall Research Natural Area, Inyo National Forest, California. Unpublished report. USDA Forest Service, Pacific Southwest Research Station, Berkeley, CA.
  • Western Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Boulder, CO.