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Lupinus albifrons Sierran Shrubland | NatureServe Biotics 2019
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Name: Lupinus albifrons Sierran Shrubland Reference: NatureServe Biotics 2019 Description: 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. <i>Clarkia unguiculata, Collinsia heterophylla, Gilia capitata, Melica californica</i>, and <i>Streptanthus tortuosus</i> are constant. The herb with the highest cover in sample plots is <i>Selaginella hansenii</i>. Generally <i>Lupinus albifrons</i> is the sole shrub, with the exception of occasional light cover of <i>Arctostaphylos viscida</i> or <i>Toxicodendron diversilobum</i>. Average total cover of all species is low (18%).  Accession Code: urn:lsid:vegbank.org:commConcept:34471-{49D52F94-B902-48E8-A4C8-4A29BCD2CA29} Plot-observations of this Community Concept: 0
	Party Perspective according to: NatureServe (organization) Perspective from: 06-May-2010 to: ongoing
	status: accepted Community's Parent: Lotus scoparius - Lupinus albifrons Scrub Alliance This Community's Level: Association This Community's Children: [none]		Names:   UID: ELEMENT_GLOBAL.2.685888 NatureServe Explorer   Code: CEGL005815   Translated: Silver Lupine Sierran Shrubland   Scientific: Lupinus albifrons Sierran Shrubland (convergence) and Synonyms: (similar) Lupinus albifrons Sierran Shrubland (similar) Lupinus albifrons Sierran Shrubland