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Pseudotsuga menziesii / Carex geyeri Forest | Western Ecology Working Group of...
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Name: Pseudotsuga menziesii / Carex geyeri Forest Reference: Western Ecology Working Group of... Description: This association has been found in the montane zone of the Rocky Mountains of Colorado, Idaho, Montana, Oregon and Washington. Stands occur in lower montane elevations of these mountainous regions, on sites typically drier than for most other Pseudotsuga menziesii associations. Slope and aspect of sites vary greatly. Slopes where this association is found in Colorado are reported to be steep to very steep (45-80%). Parent materials include granitics, conglomerates, sandstone, basalts, and shale. Exposed bare ground is low (less than 30%), and litter/duff is relatively thin, usually less than 5 cm deep. Vegetation is characterized by the dominance of Pseudotsuga menziesii, with a relatively closed canopy. Pseudotsuga is self-regenerating in this association. Several other conifers may be present, including Pinus ponderosa or Juniperus scopulorum in Colorado stands, and Pinus contorta or Populus tremuloides in stands further north. These species are typically present only in early-seral stands of this association. It is reported that in some Idaho stands, the canopy may be more open, with larger, more widely spaced trees in late-seral stands. There is no shrub layer, although several shrub species are typically present with low cover. These include the evergreen needle-leaved Juniperus communis, and the broad-leaved cold-deciduous Symphoricarpos occidentalis or Symphoricarpos oreophilus. The herbaceous layer is dominated by the perennial sedge Carex geyeri (averaging 35% cover). No other herbaceous species are well represented, but many different forbs can occur in low amounts.  Accession Code: VB.CC.18600.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 Forest Alliance This Community's Level: Association This Community's Children: [none]		Names:   Translated: Douglas-fir / Geyer's Sedge Forest   UID: ELEMENT_GLOBAL.2.683331 NatureServe Explorer   Code: CEGL000430   Scientific: Pseudotsuga menziesii / Carex geyeri Forest   Common: Douglas-fir / Elk Sedge Forest (convergence) and Synonyms: (undetermined) Pseudotsuga menziesii / Carex geyeri Forest