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Pinus lambertiana - Pinus ponderosa - Pseudotsuga menziesii / Festuca californica Forest | NatureServe Biotics 2019
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Name: Pinus lambertiana - Pinus ponderosa - Pseudotsuga menziesii / Festuca californica Forest Reference: NatureServe Biotics 2019 Description: This mixed conifer association of the Siskiyou Mountains in southwestern Oregon is dominated by <i>Pinus ponderosa</i> and <i>Pseudotsuga menziesii</i>, both with low cover. <i>Pinus lambertiana</i> is a constant canopy associate found at low cover. The regeneration layer is dominated by <i>Pinus ponderosa</i>, with <i>Pseudotsuga menziesii</i> frequently occurring. <i>Pinus lambertiana, Calocedrus decurrens, Abies lowiana</i>, and <i>Quercus chrysolepis</i> also commonly occur in the regeneration layer. <i>Arbutus menziesii, Quercus garryana, Chrysolepis chrysophylla</i>, and <i>Acer macrophyllum</i> are rarely present. <i>Toxicodendron diversilobum</i> is the only commonly occurring shrub. <i>Madia madioides</i> and <i>Iris chrysophylla</i> commonly occur, while <i>Festuca californica</i> and <i>Fragaria vesca</i> are occasional. Moss cover averages 4%. Average elevation for this association is 930 m (3050 feet); aspect is variable, though generally not north. Slopes average 32%, with a range of 15-65%. Slope position ranges from midslope to ridgetop. Parent materials are composed of andesite, basalt, mixed ultramafics, schist and diorite. Surface texture is loam, with 20-40% gravel and cobbles. Subsurface texture is loam with 60% cobbles.  Accession Code: urn:lsid:vegbank.org:commConcept:28974-{F2C0155D-68AF-4D58-840A-5D7994B6382E} Plot-observations of this Community Concept: 0
	Party Perspective according to: NatureServe (organization) Perspective from: 26-Nov-1997 to: ongoing
	status: accepted Community's Parent: Pinus ponderosa - Calocedrus decurrens - Pseudotsuga menziesii Forest Alliance This Community's Level: Association This Community's Children: [none]		Names:   UID: ELEMENT_GLOBAL.2.685396 NatureServe Explorer   Code: CEGL000065   Translated: Sugar Pine - Ponderosa Pine - Douglas-fir / California Fescue Forest   Scientific: Pinus lambertiana - Pinus ponderosa - Pseudotsuga menziesii / Festuca californica Forest (convergence) and Synonyms: (similar) Pinus lambertiana - Pinus ponderosa - Pseudotsuga menziesii / Festuca californica Forest (similar) Pinus lambertiana - Pinus ponderosa - Pseudotsuga menziesii / Festuca californica Forest (similar) CEGL000065