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Pinus ponderosa / Wyethia mollis Woodland | Western Ecology Working Group of...
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Name: Pinus ponderosa / Wyethia mollis Woodland Reference: Western Ecology Working Group of... Description: This is an open woodland found in the eastern Cascades ecoregion in south-central Oregon. This association occurs at elevations between 5000 and 6400 feet in eastern Oregon. Slopes vary from 5-40%. Sites are usually on convex topography over andesite, basalt, or rhyolite. Soils are gravelly silt loams to gravelly clay, and are well-drained. Pinus ponderosa is the major tree cover, varying from 5-50%. Abies concolor often occurs at the upper elevational phases of this association but remains <10% cover. Juniperus occidentalis may occur at <10% cover. Wyethia mollis occurs at <30% cover except in recently disturbed sites where it may be over 50% cover. Other shrubs usually found are Purshia tridentata and Amelanchier alnifolia usually exist at low cover values. Achillea millefolium is usually found up to 10% cover. A number of other forbs and grasses can be found. No single grass species (Elymus elymoides and Poa nervosa) covers more than 10%.  Accession Code: VB.CC.22628.PINUSPONDEROSAW 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: Pinus ponderosa Woodland Alliance This Community's Level: Association This Community's Children: [none]		Names:   Code: CEGL000206   Translated: Ponderosa Pine / Woolly Mule's-ears Woodland   UID: ELEMENT_GLOBAL.2.686825 NatureServe Explorer   Scientific: Pinus ponderosa / Wyethia mollis Woodland (convergence) and Synonyms: (undetermined) Pinus ponderosa / Wyethia mollis Woodland