Name:
Pinus jeffreyi - Pinus ponderosa var. washoensis Mixed Conifer Woodland Alliance
Reference:
NatureServe Biotics 2019
Description:
The alliance is dominated by <i>Pinus jeffreyi</i> or <i>Pinus ponderosa var. washoensis</i> with a dense to open canopy ranging from forests to woodlands to wooded herbaceous stands. Other codominant trees include <i>Pinus ponderosa, Calocedrus decurrens, Chrysolepis chrysophylla, Pseudotsuga menziesii, Pinus monticola, Pinus monophylla, Abies magnifica</i>, and <i>Abies lowiana</i>. Additional trees that may be present include <i>Arbutus menziesii, Quercus kelloggii, Quercus chrysolepis, Quercus wislizeni, Pinus ponderosa</i>, and <i>Chamaecyparis lawsoniana</i>. Shrubs present may include <i>Artemisia tridentata ssp. vaseyana, Arctostaphylos nevadensis, Arctostaphylos patula, Arctostaphylos canescens, Ceanothus pumilus, Ceanothus cuneatus, Ceanothus cordulatus, Ceanothus velutinus, Cercocarpus ledifolius, Chrysolepis sempervirens, Ericameria ophitidis, Purshia tridentata, Quercus vacciniifolia, Rhus trilobata</i>, and/or <i>Symphoricarpos longiflorus</i>. This alliance is found throughout much of California, including the east side of the Sierra Nevada and Modoc Plateau area, the Klamath Mountains and northern Coast Ranges. Stands occur on well-drained, productive or infertile soils regardless of parent material. Some self-replicating stands are found on strongly serpentinized peridotite. Most commonly, stands are found on ultramafic-derived soils.
Accession Code:
urn:lsid:vegbank.org:commConcept:38890-{BFEE780C-2386-4068-A62A-EAAAB7F9F927}
Plot-observations of this Community Concept:
0
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