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Pseudotsuga menziesii / Pseudoroegneria spicata Woodland | Western Ecology Working Group of...
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Name: Pseudotsuga menziesii / Pseudoroegneria spicata Woodland Reference: Western Ecology Working Group of... Description: This dry Douglas-fir woodland type occurs in scattered stands throughout the interior northwestern United States and British Columbia. Slopes are generally steeper than 20% and can exceed 70% in the southern part of the range. Elevations range from 500 m (1640 feet) in British Columbia to around 2200 m (7200 feet) in northwestern Colorado. Aspect likewise varies, with warm southerly aspects preferred in the northern part of the range to cool, sheltered north-facing slopes at the southern extreme. Soils may be derived from any mineral parent material but are generally coarse-textured, rocky and poorly developed due to constant downslope movement. The vegetation is characterized by an open canopy of <i>Pseudotsuga menziesii</i> with 25 to 35% cover, often accompanied by scattered <i>Pinus ponderosa</i> or, less often, <i>Pinus flexilis</i>. Shrubs such as <i>Amelanchier alnifolia, Prunus virginiana, Ribes cereum, Purshia tridentata, Spiraea betulifolia, Symphoricarpos oreophilus, Arctostaphylos uva-ursi</i>, and <i>Mahonia repens</i> are generally present but have less than 10% total cover. The herbaceous layer is diverse and has moderate to high cover of grasses. <i>Pseudoroegneria spicata</i> is the dominant grass with up to 35% cover. Other graminoids present may include <i>Carex geyeri</i> and <i>Festuca idahoensis</i> in the northern part of the range and <i>Melica bulbosa</i> and <i>Poa fendleriana</i> in the southern part of the range. Forbs are diverse: <i>Balsamorhiza sagittata</i> is the most consistent species, but most stands have a dozen species of forbs or more. <i>Bromus tectorum</i> is common to abundant in degraded stands.  Accession Code: VB.CC.33303.CEGL000908 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.2.683717 NatureServe Explorer   Translated: Douglas-fir / Bluebunch Wheatgrass Woodland   Scientific: Pseudotsuga menziesii / Pseudoroegneria spicata Woodland   Code: CEGL000908