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Pseudotsuga menziesii / Calamagrostis rubescens Forest | Western Ecology Working Group of...
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Name: Pseudotsuga menziesii / Calamagrostis rubescens Forest Reference: Western Ecology Working Group of... Description: This lower to mid montane woodland association occurs in the central and northern Rocky Mountains from western Montana to northeastern Washington and British Columbia, and south to western Wyoming, Idaho and eastern Oregon. Elevations range from 825 to 2400 m (2700-7900 feet). Stands occur on cool, dry sites on mid to upper slopes and benches on all aspects at middle elevations. At lowest elevations stands are restricted to north aspects, and at upper elevations stands are found on warm and dry southerly exposures. Substrates are variable (sandy to clayey), but are generally well-drained, coarser-textured gravelly soils and derived from a variety of noncalcareous, acid, parent materials. Surface rock usually is low to moderate, and litter cover high. The typically open tree canopy is dominated by Pseudotsuga menziesii alone or codominated by Pinus ponderosa or Larix occidentalis. Large Pinus albicaulis or Pinus contorta trees may be present in the upper tree canopy. The subcanopy is Pseudotsuga menziesii. Scattered shrubs and the dwarf-shrub Arctostaphylos uva-ursi may also be present. The dense to moderately dense (20-60% cover) perennial graminoid layer characteristically dominates the understory. Calamagrostis rubescens typically is the dominant, with Carex geyeri, Festuca idahoensis, and Pseudoroegneria spicata often present to codominant. There is often high diversity of forbs, but typically all have low cover. The most common forb species are Achillea millefolium, Antennaria spp., Arnica cordifolia, Fragaria virginiana, and Geum triflorum.  Accession Code: VB.CC.18598.PSEUDOTSUGAMENZ Plot-observations of this Community Concept: 0
	Party Perspective according to: NatureServe (organization) Perspective from: 26-Nov-1997 to: 17-Nov-2014
	status: accepted Community's Parent: Pseudotsuga menziesii Woodland Alliance This Community's Level: Association This Community's Children: [none]		Names:   Translated: Douglas-fir / Pinegrass Woodland   UID: ELEMENT_GLOBAL.2.683330 NatureServe Explorer   Code: CEGL000429   Common: Douglas-fir / Pinegrass Woodland   Scientific: Pseudotsuga menziesii / Calamagrostis rubescens Woodland (convergence) and Synonyms: (undetermined) Pseudotsuga menziesii / Calamagrostis rubescens Woodland