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Abies lasiocarpa - Picea engelmannii Rocky Mountain Talus & Scree Woodland Alliance | NatureServe Biotics 2019
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Name: Abies lasiocarpa - Picea engelmannii Rocky Mountain Talus & Scree Woodland Alliance Reference: NatureServe Biotics 2019 Description: These upper montane or subalpine conifer woodlands are found scattered throughout the Rocky Mountains within cool and relatively dry climate regimes. In mature stands, the association is characterized by <i>Abies lasiocarpa</i> as the dominant tree species, often with <i>Picea engelmannii</i>. In seral stands, other conifers can be important or even dominant, but <i>Abies lasiocarpa</i> is always present in the regeneration layer. Other tree associates include <i>Callitropsis nootkatensis, Larix</i> spp., <i>Pinus albicaulis, Pinus contorta, Picea glauca, Pseudotsuga menziesii</i>, and <i>Tsuga</i> spp. Stands have sparse shrub layers, typically a reflection of dry conditions related to poorly developed soils, and may include species such as <i>Acer circinatum, Holodiscus dumosus, Juniperus communis, Ribes</i> spp., <i>Salix brachycarpa</i>, and <i>Salix glauca</i>. The herbaceous layer is generally sparse. Important forbs include species of <i>Arnica, Fragaria, Lupinus, Pedicularis</i>, and <i>Thalictrum</i>. Graminoids are rarely important in these woodlands. These woodlands are found on scree and talus slopes where marginal growing conditions produce an open tree canopy. Parent materials and soils are variable across the distribution of the alliance.  Accession Code: urn:lsid:vegbank.org:commConcept:38836-{1CB8031F-6A42-43A6-9323-A15B908C8427} Plot-observations of this Community Concept: 0
	Party Perspective according to: NatureServe (organization) Perspective from: 08-Jan-2014 to: ongoing
	status: accepted Community's Parent: Picea engelmannii - Abies lasiocarpa - Tsuga mertensiana Moist Forest & Woodland Group This Community's Level: Alliance This Community's Children: Show/Hide   Abies lasiocarpa - Picea engelmannii / Valeriana sitchensis Woodland   Abies lasiocarpa / Salix brachycarpa Scree Woodland   Abies lasiocarpa / Salix glauca Scree Woodland   Abies lasiocarpa / Saxifraga bronchialis Scree Woodland		Names:   UID: ELEMENT_GLOBAL.2.899674 NatureServe Explorer   Code: A3616   Translated: Subalpine Fir - Engelmann Spruce Rocky Mountain Talus & Scree Woodland Alliance   Common: Rocky Mountain Subalpine Fir - Engelmann Spruce Talus & Scree Woodland   Scientific: Abies lasiocarpa - Picea engelmannii Rocky Mountain Talus & Scree Woodland Alliance