Name:
Pinus longaeva Forest & Woodland Alliance
Reference:
NatureServe Biotics 2019
Description:
This widely scattered subalpine forest and woodland alliance occurs on mountain slopes throughout the Great Basin. Canopies are typically solely dominated by <i>Pinus longaeva</i>, although some stands may be codominated by <i>Abies concolor</i> and <i>Pinus ponderosa</i>. Other canopy associates occurring at low cover may include <i>Juniperus osteosperma, Juniperus scopulorum, Picea engelmannii, Pinus edulis, Pinus flexilis, Populus tremuloides</i>, and <i>Pseudotsuga menziesii</i>. Shrubs are infrequent to conspicuous. Characteristic shrubs may include <i>Amelanchier utahensis, Arctostaphylos patula, Cercocarpus intricatus, Ericameria discoidea, Ericameria nauseosa, Eriogonum corymbosum, Purshia tridentata</i>, and <i>Ribes montigenum</i>. The herbaceous is very sparse to open (5-35% cover) and may be dominated by graminoids or forbs. The most common graminoids are <i>Carex rossii, Leymus salinus</i>, and <i>Poa fendleriana</i>. A variety of forbs may be present and may include <i>Aquilegia scopulorum, Arabis drummondii, Astragalus platytropis, Castilleja nana, Cymopterus nivalis, Erigeron jonesii, Oxytropis oreophila, Penstemon leiophyllus var. francisci-pennellii, Tetraneuris acaulis, Trifolium gymnocarpon</i>, and <i>Trisetum spicatum</i>. These forests and woodlands grow on all slopes, especially ridges and upper slopes below timberline. They grow on dolomitic, limestone- or granite-derived soils. This woodland may occur under the driest conditions of the California subalpine woodlands. The growing season is limited by drought in the summer and cold in the winter. Precipitation, mostly as snow, falls in the winter. Stands are found between 2600 and 3600 m elevation.
Accession Code:
urn:lsid:vegbank.org:commConcept:38070-{56D23C39-6C98-407C-995C-323C4B77BB53}
Plot-observations of this Community Concept:
0
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