Name:
Pinus monticola / Arctostaphylos nevadensis Vancouverian Cliff, Scree & Rock Vegetation Group
Reference:
NatureServe Biotics 2019
Description:
This group is known from the Wenatchee Mountains in the east Cascades, subalpine elevations throughout the Sierra Nevada, and Klamath Mountains. Sites include steep slopes, steep cliff faces, narrow canyons, and rock outcrops. Substrates include thin rocky, ultramafic (peridotite, serpentinite) soils in the Cascades, and unstable scree below cliff faces in the Sierra Nevada and Klamath Range. Parent materials are derived from various igneous, sedimentary, and metamorphic bedrock. Vegetation is highly variable and typically sparse and scattered, varying from areas dominated by mosses and lichens to occasional closed forests in the Cascades. Species in the Cascades may include <i>Pseudotsuga menziesii, Pinus ponderosa</i>, and <i>Pinus monticola</i> trees with a sparse ground cover with <i>Aspidotis densa, Arctostaphylos nevadensis</i>, and <i>Pseudoroegneria spicata</i> at low-elevation sites. Higher elevations have <i>Pinus contorta var. latifolia, Pinus albicaulis, Abies lasiocarpa</i>, and <i>Tsuga mertensiana</i> with <i>Juniperus communis, Ledum glandulosum, Vaccinium scoparium, Poa curtifolia</i>, and <i>Festuca viridula</i>. Scattered vegetation in the Sierra Nevada and Klamath Mountains may include <i>Abies magnifica, Pseudotsuga menziesii, Pinus contorta var. murrayana, Pinus ponderosa, Pinus jeffreyi, Populus tremuloides</i>, or <i>Pinus monophylla, Juniperus osteosperma</i>, and <i>Cercocarpus ledifolius</i> at lower elevations. There may be shrubs, including species of <i>Arctostaphylos</i> or <i>Ceanothus</i>. Soil development is limited as is herbaceous cover.
Accession Code:
urn:lsid:vegbank.org:commConcept:40241-{E368DC69-4767-464B-99DE-6989BE2348F0}
Plot-observations of this Community Concept:
0
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