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Pinus jeffreyi / Arctostaphylos patula Woodland | NatureServe Biotics 2019
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Name: Pinus jeffreyi / Arctostaphylos patula Woodland
Reference: NatureServe Biotics 2019
Description: This association is found at the mid to upper elevations in the Sierra Nevada of California and appears more commonly in the south and east sides. Stands often cover tens of acres and occasionally cover several hundreds of acres. Stands of this woodland are found at mid to high elevations (2030-2900 m [6660-9520 feet]) on gentle to steep (4-64%) slopes of variable, but mostly southeast and southwest, aspects. These sites are on middle and upper slopes and ridgetops. There are significantly higher levels of bare ground, surface gravel and bare rock compared to other sites. This association is found on poorly developed to moderately developed soils with textures ranging from rocky to sandy loam on a granitic substrate. Parent material is granitic but some were derived from volcanic materials. Soil depths are usually moderately deep to deep (13-100+ cm [5-40+ inches]), and textures are sand, sandy loams and loams. Drainage is usually excessive due to coarse soil textures. Stands of this woodland form an open tree layer underlain by a dense shrub layer. The open tree canopy is dominated by <i>Pinus jeffreyi</i>. <i>Abies magnifica</i> is often present and <i>Abies lowiana</i> is occasionally present. In some cases, <i>Pinus jeffreyi</i> is less abundant than <i>Abies magnifica</i> and <i>Abies lowiana</i>. The shrub layer consists of <i>Arctostaphylos patula</i> or <i>Ceanothus velutinus</i>. Other shrubs also found in this association include <i>Chrysolepis sempervirens, Ceanothus cordulatus, Arctostaphylos nevadensis</i>, and <i>Prunus emarginata</i>. The open herb layer may include low amounts of <i>Arabis platysperma var. howellii, Gayophytum eriospermum, Pedicularis semibarbata, Cistanthe umbellata, Erigeron breweri, Eriogonum nudum, Monardella odoratissima ssp. pallida, Erigeron peregrinus, Elymus elymoides</i>, and <i>Achnatherum occidentale</i>. 
Accession Code: urn:lsid:vegbank.org:commConcept:36675-{53849BBE-FBFD-4DBB-8359-C10A73CD607E}
Plot-observations of this Community Concept: 0
      Party Perspective according to: NatureServe (organization)
Perspective from: 06-May-2010 to: ongoing
      Names:   UID: ELEMENT_GLOBAL.2.687143 NatureServe ExplorerNatureServe Explorer logo
  Code: CEGL008627
  Translated: Jeffrey Pine / Greenleaf Manzanita Woodland
  Scientific: Pinus jeffreyi / Arctostaphylos patula Woodland
(convergence) and Synonyms:
(similar) CEGL008627
(similar) Pinus jeffreyi / Arctostaphylos patula Woodland
(similar) Pinus jeffreyi / Arctostaphylos patula Woodland