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Pinus edulis - Juniperus osteosperma / Petradoria pumila Woodland | NatureServe Biotics 2019
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Name: Pinus edulis - Juniperus osteosperma / Petradoria pumila Woodland Reference: NatureServe Biotics 2019 Description: This association is found in eastern Utah and western Colorado on upper topographic positions between 1841 and 2195 m (6050-7200 feet) elevation. It occurs on level to gently sloping sites on any aspect with thin soils over sandstone or shale bedrock. Litter, bedrock, and bare soil are the most common components of the ground cover. This woodland association has a short, open tree canopy dominated by evergreen tree species. Total vegetation cover is relatively sparse to moderate. The dominant tree species are <i>Pinus edulis</i> and <i>Juniperus osteosperma</i>; either species can have cover between 1 and 25%. The shrub layer is absent to moderate and has low diversity. <i>Ephedra viridis, Gutierrezia sarothrae</i>, and succulents, such as <i>Echinocereus triglochidiatus, Opuntia polyacantha var. erinacea, Opuntia fragilis</i>, and <i>Yucca harrimaniae</i>, are the most common species. The herbaceous layer has low cover, as well, but tends to have greater diversity. Common grasses, such as <i>Achnatherum hymenoides, Bromus tectorum, Elymus elymoides</i>, and <i>Poa fendleriana</i>, provide sparse cover. The forb <i>Petradoria pumila</i> is the most abundant herbaceous species and is characteristic of this association. Other forbs include <i>Arenaria fendleri, Descurainia pinnata, Eriogonum alatum, Heterotheca villosa, Streptanthus cordatus</i>, and <i>Tetraneuris acaulis</i>.  Accession Code: urn:lsid:vegbank.org:commConcept:31241-{A5F6EF9E-D4C0-40CD-9B5B-2C4DD2EA404F} Plot-observations of this Community Concept: 0
	Party Perspective according to: NatureServe (organization) Perspective from: 11-Apr-2006 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.2.758260 NatureServe Explorer   Code: CEGL002332   Translated: Two-needle Pinyon - Utah Juniper / Rock-goldenrod Woodland   Scientific: Pinus edulis - Juniperus osteosperma / Petradoria pumila Woodland (convergence) and Synonyms: (similar) Pinus edulis - Juniperus osteosperma / Petradoria pumila Woodland