Name:
Abies lowiana - Pseudotsuga menziesii Coastal, Cascadian & Sierran Forest Alliance
Reference:
NatureServe Biotics 2019
Description:
This is a forest alliance where the upper tree canopy is a mixed codominance of <i>Abies lowiana</i> and <i>Pseudotsuga menziesii</i>. Other tree species often present include <i>Calocedrus decurrens, Chrysolepis chrysophylla, Cornus nuttallii, Pinus lambertiana, Pinus ponderosa, Quercus chrysolepis</i>, and <i>Quercus kelloggii</i>. <i>Pinus lambertiana</i> has less than 5% absolute cover, and less than 2% relative cover. Stands can have well-developed shrub layers or no shrub layer, and stands can have greater diversity of mixed trees in the upper canopy. Understory species are characteristic of the Vancouverian flora which differentiates this alliance from its Rocky Mountain counterpart. Characteristic understory and undergrowth species include <i>Anemone deltoidea, Ceanothus cordulatus, Chrysolepis chrysophylla, Corylus cornuta, Holodiscus discolor, Notholithocarpus densiflorus, Mahonia aquifolium, Quercus sadleriana, Quercus vacciniifolia, Rubus nivalis, Taxus brevifolia, Toxicodendron diversilobum</i>, and <i>Whipplea modesta</i>. The alliance occurs throughout the Oregon Coast Ranges, southern Cascades and Klamath Mountains south into the California northern Coast Ranges, California Cascades and Sierra Nevada.
Accession Code:
urn:lsid:vegbank.org:commConcept:38888-{64D8A500-CB28-4D75-AC38-DFA974AE5051}
Plot-observations of this Community Concept:
0
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