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Tsuga mertensiana - Pinus contorta var. murrayana / Carex rossii Forest | NatureServe Biotics 2019
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Name: Tsuga mertensiana - Pinus contorta var. murrayana / Carex rossii Forest Reference: NatureServe Biotics 2019 Description: This forest association is currently only known from Yosemite National Park in California, and the following description is based on occurrences there. Additional information will be added as it becomes available. Stands are found at high elevations (2740-3020 m [9000-9900 feet]) on flat to steep, upper portions of slopes (0-40°). Slopes generally are concave in shape. Aspect is relatively cool and shady and ranges from east to north. These sites are typically on poorly developed to moderately well-developed soils with textures ranging from rocky to rocky, gravelly, sandy loam. These soils are well-drained to moderately well-drained and depths are shallow to deep. Parent material is granitic. Fire is uncommon and restricted in size. This type and many of the high-elevation conifer types are extremely limited in extent on the east side due to harsh environmental conditions including relatively low precipitation and cold. Stands form sparse to moderately dense forests dominated by <i>Tsuga mertensiana</i> and <i>Pinus contorta</i> in the overstory. Occasionally, <i>Pinus albicaulis</i> is found contributing to minor cover in the tree layer. <i>Carex rossii</i> is characteristic in the understory for usually low cover. There is a variety of understory species that may contribute minor cover including <i>Juncus</i> sp., <i>Phyllodoce breweri, Carex</i> sp., <i>Pinus monticola, Salix</i> sp., <i>Cassiope mertensiana, Holodiscus discolor, Poa secunda, Lupinus sellulus var. lobbii, Lupinus covillei, Carex leporinella, Senecio triangularis</i>, and <i>Salix lemmonii</i>.  Accession Code: urn:lsid:vegbank.org:commConcept:36729-{752DD7EF-DEBF-46EE-9C7D-89D615A0FC3F} Plot-observations of this Community Concept: 0
	Party Perspective according to: NatureServe (organization) Perspective from: 06-May-2010 to: ongoing
	status: accepted Community's Parent: Tsuga mertensiana - Pinus contorta var. murrayana Sierran Forest Alliance This Community's Level: Association This Community's Children: [none]		Names:   UID: ELEMENT_GLOBAL.2.684338 NatureServe Explorer   Code: CEGL008690   Translated: Mountain Hemlock - Sierra Lodgepole Pine / Ross' Sedge Forest   Scientific: Tsuga mertensiana - Pinus contorta var. murrayana / Carex rossii Forest (convergence) and Synonyms: (similar) Tsuga mertensiana - Pinus contorta var. murrayana / Carex rossii Forest (similar) Tsuga mertensiana - Pinus contorta var. murrayana / Carex rossii Forest