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Paxistima myrsinites - Saxifraga spp. - Luina hypoleuca Alpine Rock Crevice Alliance | NatureServe Biotics 2019
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Name: Paxistima myrsinites - Saxifraga spp. - Luina hypoleuca Alpine Rock Crevice Alliance Reference: NatureServe Biotics 2019 Description: This alliance covers dwarf-shrub- and forb-dominated vegetation that grow in the crevices and cracks of bare rock on cliffs to moderately steep, sloping rock faces as well as talus slopes. Within those places, the canopy cover can be as much as 15%, but the overall impression is of a sparsely vegetated rock surface. Most locations are near treeline at all aspects. Dominant species include <i>Campanula piperi, Juniperus communis, Luina hypoleuca, Paxistima myrsinites, Petrophytum hendersonii</i>, and/or <i>Saxifraga bronchialis</i>. Regardless of the dominant species, many of these companion species can be present and include <i>Achillea millefolium, Carex phaeocephala, Cryptogramma acrostichoides, Douglasia laevigata, Erysimum arenicola, Eucephalus paucicapitatus, Festuca saximontana, Hedysarum occidentale, Lomatium martindalei, Penstemon davidsonii, Phlox diffusa, Saxifraga bronchialis, Sedum divergens, Silene parryi</i>, and <i>Viola flettii</i>. This alliance is known from high in the Olympic Mountains and Cascade Range of northern Washington. It occurs at high elevations (1220-1980 m [4000-6500 feet]). Exposed rock is characteristic of this alliance, while the vegetation is confined to cracks and crevices.  Accession Code: urn:lsid:vegbank.org:commConcept:38995-{64C5DD4A-93EE-4CCE-B6DC-074C7C92AA53} Plot-observations of this Community Concept: 0
	Party Perspective according to: NatureServe (organization) Perspective from: 26-Sep-2014 to: ongoing
	status: accepted Community's Parent: Racomitrium spp. - Stereocaulon spp. - Phlox spp. North Pacific Alpine-Subalpine Bedrock & Scree Group This Community's Level: Alliance This Community's Children: [none]		Names:   UID: ELEMENT_GLOBAL.2.899833 NatureServe Explorer   Code: A3781   Translated: Oregon Boxleaf - Saxifrage species - Littleleaf Silverback Alpine Rock Crevice Alliance   Common: Oregon Boxleaf - Saxifrage - Littleleaf Silverback Alpine Rock Crevice   Scientific: Paxistima myrsinites - Saxifraga spp. - Luina hypoleuca Alpine Rock Crevice Alliance