Print Report

CEGL003488 Phlox covillei - Elymus elymoides - Podistera nevadensis Alpine Fell-field

Type Concept Sentence: No Data Available


Common (Translated Scientific) Name: Coville''s Phlox - Squirreltail - Sierran Woodroot Alpine Fell-field

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 alpine association occur on talus slopes and ridgelines at about 3380 m (11,100 feet) elevation. Slopes are moderate to steep. Aspects are south and west, and sites are probably free of snow early in the season followed by a long, droughty summer. Soils are well-drained sands with significant talus or cobble. This sparse alpine herbaceous vegetation is characterized by a low (<0.5 m) open canopy of forbs and graminoids. Thirty-eight species have been recorded in plots of this type. Phlox covillei is the dominant forb. Arenaria kingii ssp. compacta is also usually present. Podistera nevadensis is a diagnostic forb, occurring in 75% of stands. Elymus elymoides ssp. californicus is also a constant and the most common graminoid. Other common forb associates may include Eriogonum ovalifolium, Eriogonum rosense, Castilleja nana, Draba densifolia, Ericameria parryi var. monocephala, Astragalus whitneyi var. whitneyi, Astragalus purshii var. lectulus, Erigeron compositus, and/or Erigeron pygmaeus. Graminoids present commonly include Poa glauca ssp. rupicola, Achnatherum pinetorum, Carex tahoensis, and/or Festuca brachyphylla ssp. brachyphylla.

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 herbaceous association is currently only known from scattered locations along the Sierra Nevada crest in Yosemite National Park in California. Additional range information will be added as it becomes available.

Nations: US

States/Provinces:  CA




Confidence Level: Low

Confidence Level Comments: No Data Available

Grank: G3?

Greasons: No Data Available


Concept Lineage: Upgraded to Standard during screening.

Predecessors: No Data Available

Obsolete Names: No Data Available

Obsolete Parents: No Data Available

Synonomy: > Phlox covillei - (Phlox condensata) - Elymus elymoides - Podistera nevadensis Herbaceous Vegetation (Keeler-Wolf et al. 2012)
= Phlox covillei - (Phlox condensata) - Elymus elymoides - Podistera nevadensis Herbaceous Vegetation (Keeler-Wolf 2002)
> Phlox covillei - Elymus elymoides - Podistera nevadensis - Erigeron pygmaeus Herbaceous Vegetation (Keeler-Wolf et al. 2012)
= Phlox covillei - Elymus elymoides - Podistera nevadensis (Sawyer et al. 2009) [91.123.01]

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

Author of Description: T. Keeler-Wolf

Acknowledgements: No Data Available

Version Date: 04-06-12

  • 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.
  • 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.