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Pinus jeffreyi / Arctostaphylos patula Woodland | Western Ecology Working Group of...
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Name: Pinus jeffreyi / Arctostaphylos patula Woodland Reference: Western Ecology Working Group of... 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 concolor</i> is occasionally present. In some cases, <i>Pinus jeffreyi</i> is less abundant than <i>Abies magnifica</i> and <i>Abies concolor</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 (= Castanopsis 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 (= Calyptridium umbellatum), Erigeron breweri, Eriogonum nudum, Monardella odoratissima ssp. pallida, Erigeron peregrinus, Elymus elymoides</i>, and <i>Achnatherum occidentale</i>.  Accession Code: VB.CC.33079.CEGL008627 Plot-observations of this Community Concept: 0
	Party Perspective according to: NatureServe (organization) Perspective from: 17-Nov-2014 to: 01-May-2019
	status: accepted This Community's Level: association This Community's Children: [none]		Names:   UID: ELEMENT_GLOBAL.2.687143 NatureServe Explorer   Translated: Jeffrey Pine / Greenleaf Manzanita Woodland   Scientific: Pinus jeffreyi / Arctostaphylos patula Woodland   Code: CEGL008627