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Pinus ponderosa / Calamagrostis rubescens Forest | Western Ecology Working Group of...
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Name: Pinus ponderosa / Calamagrostis rubescens Forest Reference: Western Ecology Working Group of... Description: This association has only been described from central and northeastern Oregon, and adjacent Washington and Idaho. It is most often found between 1310 and 1830 m (4300-6000 feet) on all aspects with slopes less than 20%. Soils range from sandy or silty loams to silty clay loams and clay. Parent material is residuum and colluvium of igneous, sedimentary, and metamorphic rocks, most with a mantle of ash or loess. This open forest resembles a park-like setting typified by large trees mantling a grassy floor. It usually consists of large-diameter <i>Pinus ponderosa</i> averaging 45% (17-81%) cover, which represents the only tree. Shrub cover is low with the most common associate, <i>Symphoricarpos albus</i> having less than 2% canopy cover. <i>Calamagrostis rubescens</i> averages 38% (7-70%) cover and <i>Carex geyeri</i> supports an average of 20% (2-45%) cover. Forbs include <i>Achillea millefolium, Lupinus caudatus, Arnica cordifolia</i>, and <i>Fragaria crinita</i>, all occurring at less than 12%.  Accession Code: VB.CC.32902.CEGL000181 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.2.685719 NatureServe Explorer   Translated: Ponderosa Pine / Pinegrass Forest   Scientific: Pinus ponderosa / Calamagrostis rubescens Forest   Code: CEGL000181