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Picea engelmannii / Juniperus communis Forest | NatureServe Biotics 2019
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Name: Picea engelmannii / Juniperus communis Forest Reference: NatureServe Biotics 2019 Description: This late-seral subalpine conifer association is found in the mountains of northwestern Wyoming, eastern Idaho and northwestern or north-central Montana. Elevation ranges from 2000 to 3140 m. Stands usually occur on cooler northern and eastern aspects on a variety of terrain on dry, rocky substrates derived from calcareous, volcanic, or granitic parent materials. In Montana, stands occurred on steep, south-facing talus slopes, with rocky, poorly developed soils. Otherwise, the soil surface typically has high cover of litter with low cover of bare soil and rock. This association has an open to moderately dense to dense (30% to over 60%) canopy of conifer trees over 30 m tall that is dominated by <i>Picea engelmannii</i> or <i>Picea x albertiana</i>. Other trees in the canopy may include <i>Pseudotsuga menziesii, Pinus flexilis</i>, or <i>Pinus contorta</i> depending on substrate. <i>Pinus albicaulis</i> is sometimes present in the northerly stands in Montana. <i>Abies lasiocarpa</i> is absent from the tree canopy and regeneration layer. The understory is composed of large, dense, short-shrub patches of <i>Juniperus communis</i> with <i>Shepherdia canadensis</i> common in seral stands. The sparse herbaceous layer is composed of the forbs <i>Arnica cordifolia, Astragalus miser, Solidago multiradiata, Chamerion angustifolium, Frasera speciosa</i>, and the graminoids <i>Carex rossii</i> and <i>Poa nervosa</i>.  Accession Code: urn:lsid:vegbank.org:commConcept:34578-{0B3E41A2-1ED7-45EB-8262-8136A5B36BE5} Plot-observations of this Community Concept: 0
	Party Perspective according to: NatureServe (organization) Perspective from: 16-Mar-2004 to: ongoing
	status: accepted Community's Parent: Abies lasiocarpa - Picea engelmannii Rocky Mountain Dry-Mesic Forest Alliance This Community's Level: Association This Community's Children: [none]		Names:   UID: ELEMENT_GLOBAL.2.731879 NatureServe Explorer   Code: CEGL005925   Translated: Engelmann Spruce / Common Juniper Forest   Scientific: Picea engelmannii / Juniperus communis Forest (convergence) and Synonyms: (similar) Picea engelmannii / Juniperus communis Forest (similar) Picea engelmannii / Juniperus communis Forest