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Pinus edulis - Juniperus osteosperma / Sparse Understory Woodland | NatureServe Biotics 2019
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Name: Pinus edulis - Juniperus osteosperma / Sparse Understory Woodland Reference: NatureServe Biotics 2019 Description: This variable woodland association is widespread in parts of western Colorado and eastern Utah. This widespread association has total vegetation cover ranging from 10-75%. Sparsely vegetated stands (&lt;10% total vegetation cover) composed of only trees are included in this woodland association in extremely dry, rocky portions of the Colorado Plateau. The tree canopy is dominated by <i>Pinus edulis</i> and <i>Juniperus osteosperma</i>. Both typically range from 1-35% cover with some stands having canopy cover by one species up to 50%. The tree canopy is short, usually 2-10 m tall, and open to moderately closed. Several shrub species are commonly found in this association, but they occur as widely scattered individuals, and do not form a shrub stratum. The lack of an understory may be due to high rock cover, low soil moisture, or a closed evergreen canopy of pinyon and juniper. Shrubs include <i>Amelanchier utahensis, Artemisia tridentata, Cercocarpus montanus, Ephedra viridis, Eriogonum microthecum, Shepherdia rotundifolia</i>, and/or <i>Opuntia</i> spp. The herbaceous layer is low in cover (&lt;5%) and usually low in diversity. It is found most commonly on mid to upper slopes, though other topographic positions are possible. It occurs at elevations between 1354 and 2389 m and on all aspects. Sites range from flat to moderately steep. The ground has variable amounts of litter and often has moderate to high amounts of gravel, rocks, and exposed bedrock. Cryptogamic cover is usually low to moderate, but some sites have up to 55-65% cover. Soils are always rapidly drained to moderately well-drained. Parent materials are also highly variable and can be sandstones, shales, or limestones.  Accession Code: urn:lsid:vegbank.org:commConcept:31057-{84EE424E-E9A8-4755-8AF1-76F70DF26BCB} Plot-observations of this Community Concept: 0
	Party Perspective according to: NatureServe (organization) Perspective from: 13-Jul-2016 to: ongoing
	status: accepted Community's Parent: Pinus edulis - Juniperus osteosperma Colorado Plateau Shrubby Open Woodland Alliance This Community's Level: Association This Community's Children: [none]		Names:   UID: ELEMENT_GLOBAL.2.757454 NatureServe Explorer   Code: CEGL002148   Translated: Two-needle Pinyon - Utah Juniper / Sparse Understory Woodland   Scientific: Pinus edulis - Juniperus osteosperma / Sparse Understory Woodland (convergence) and Synonyms: (similar) Pinus edulis - Juniperus osteosperma / Sparse Understory Woodland