Print Report

CEGL005815 Lupinus albifrons Sierran Shrubland

Type Concept Sentence: No Data Available


Common (Translated Scientific) Name: Silver Lupine Sierran Shrubland

Colloquial Name: No Data Available

Hierarchy Level:  Association

Type Concept: This shrubland 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 are found at extremely xeric sites at low elevations (460-1430 m [1500-4700 feet]) on the upper, mid, and low portions of southeast- to southwest-facing, undulating and linear, moderately steep to steep slopes. This association generally occurs in very hot, stony sites with a large percent cover of bedrock or large rocks (average 50% bedrock). Soils tend to be poorly developed and very shallow, skeletal, and stony with textures ranging from metamorphic to gneiss parent materials. Drainage is moderately well-drained to rapid. Litter cover and bare soil range from 5-40% cover. Impact from disturbance is low to high and often includes invasion from exotic species. Stands of this shrubland form a sparse canopy 1-2 m tall. The understory herb layer is typically open. Clarkia unguiculata, Collinsia heterophylla, Gilia capitata, Melica californica, and Streptanthus tortuosus are constant. The herb with the highest cover in sample plots is Selaginella hansenii. Generally Lupinus albifrons is the sole shrub, with the exception of occasional light cover of Arctostaphylos viscida or Toxicodendron diversilobum. Average total cover of all species is low (18%).

Diagnostic Characteristics: No Data Available

Rationale for Nominal Species or Physiognomic Features: No Data Available

Classification Comments: Anecdotally, this alliance appears to also occur on road cuts and other steep rocky openings throughout its range.

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 only known from Yosemite National Park, California. Information about its global characteristics is not available without additional inventory. Stands of Lupinus albifrons also occur in the central and north Coast Ranges in the East Bay Hills and in eastern Napa County (T. Keeler-Wolf pers. obs.) and are likely to occur elsewhere in cismontane California, as this species is found in nearly all counties of the state (CNDDB 2001).

Nations: US

States/Provinces:  CA




Confidence Level: Low

Confidence Level Comments: No Data Available

Grank: G3?

Greasons: No Data Available


Concept Lineage: No Data Available

Predecessors: No Data Available

Obsolete Names: No Data Available

Obsolete Parents: No Data Available

Synonomy: = Lupinus albifrons Shrubland [Provisional] (Keeler-Wolf et al. 2012)
= Lupinus albifrons (Sawyer et al. 2009) [32.081.01]
= Lupinus albifrons (Stout et al. 2013)
= Lupinus albifrons Association (Buck-Diaz et al. 2012)

Concept Author(s): T. Keeler-Wolf et al. (2012)

Author of Description: T. Keeler-Wolf

Acknowledgements: No Data Available

Version Date: 05-06-10

  • Buck-Diaz, J., S. Batiuk, and J. M. Evens. 2012. Vegetation alliances and associations of the Great Valley ecoregion, California. California Native Society, Sacramento, CA. [http://cnps.org/cnps/vegetation/pdf/great_valley_eco-vegclass2012.pdf]
  • CNDDB [California Natural Diversity Data Base]. No date. Unpublished data files. California Natural Diversity Data Base, California Natural Heritage Division, Sacramento.
  • Keeler-Wolf, T. Personal communication. Senior Vegetation Ecologist, Wildlife and Habitat Data Analysis Branch, California Department of Fish and Game, Sacramento, CA.
  • 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.
  • Stout, D., J. Buck-Diaz, S. Taylor, and J. M. Evens. 2013. Vegetation mapping and accuracy assessment report for Carrizo Plain National Monument. California Native Plant Society, Vegetation Program, Sacramento, CA. 71 pp.
  • Western Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Boulder, CO.