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CEGL002362 Juniperus osteosperma / Pleuraphis jamesii Open Woodland
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Utah Juniper / James'' Galleta Open Woodland
Colloquial Name: No Data Available
Hierarchy Level: Association
Type Concept: This woodland association occurs on valley floors, ridges, and benches in northwestern Colorado and eastern Utah. Total vegetation cover rarely exceeds 60%. The tree canopy consists of Juniperus osteosperma with up to 40% cover. Pinus edulis is generally absent. Scattered shrubs may be present, but there is no developed shrub layer. The herbaceous stratum is sparse to moderately dense and is dominated by graminoids. Pleuraphis jamesii is dominant to codominant and is generally accompanied by other grasses such as Achnatherum hymenoides, Bouteloua gracilis, or Hesperostipa comata. Forbs are sparse in cover and inconsistent in composition among sites. Sites have gentle to moderately steep slopes (2-20%), occur between 1341 and 1860 m elevation, and may be oriented to any aspect. Soils are well-drained sands, sandy clays, or clay loams. Unvegetated surface has bare soil and small rocks or may have a high cover of litter, and biological soil crusts may be well-developed in areas that are protected from grazing. Stands occur in relatively small patches, often in a mosaic with other pinyon-juniper / grass woodland types.
Diagnostic Characteristics: No Data Available
Rationale for Nominal Species or Physiognomic Features: No Data Available
Classification Comments: This association is largely known and described from National Park Service inventory efforts in the Colorado Plateau.
Similar NVC Types: No Data Available
note: No Data Available
Physiognomy and Structure: No Data Available
Floristics: This woodland association occurs in relatively small patches, often in a mosaic with other pinyon-juniper woodland types. Total vegetation cover rarely exceeds 60%. The tree canopy consists of Juniperus osteosperma with between 20 and 40% cover. Pinus edulis is absent or occurs only as scattered individuals. Scattered shrubs such as Artemisia bigelovii, Artemisia tridentata ssp. wyomingensis, Atriplex canescens, Atriplex confertifolia, Chrysothamnus viscidiflorus, Ephedra cutleri, Ephedra viridis, Ephedra torreyana, Ericameria nauseosa, Gutierrezia sarothrae, Gutierrezia microcephala, Opuntia polyacantha, Zuckia brandegeei, Krascheninnikovia lanata, and Purshia stansburiana may be present, but there is no developed shrub layer. The herbaceous stratum is sparse to moderately dense and is dominated by graminoids. Pleuraphis jamesii is dominant to codominant and is generally accompanied by other grasses such as Achnatherum hymenoides, Bouteloua gracilis, Hesperostipa comata, Muhlenbergia pungens, Sporobolus spp., and Achnatherum speciosum (= Stipa speciosa). Forbs are sparse in cover and inconsistent in composition among sites. Bromus tectorum may be present in disturbed stands.
Dynamics: No Data Available
Environmental Description: This woodland association occurs on valley floors, ridges, benches, slumps, talus slopes, hills, and along washes/drainage channels. Sites have gentle slopes (3-5%), occur between 1579 and 1860 m elevation, and may be oriented to any aspect. The unvegetated surface has bare soil and small rocks or may have a high cover of litter. Soils are well-drained sands, sandy clays, or clay loams derived from shales, sandstones, or a mix of the two.
Geographic Range: This association has been documented in northwestern Colorado and eastern Utah. It is likely to be widespread throughout the Colorado Plateau, including Arizona and New Mexico.
Nations: US
States/Provinces: AZ, CO, NM?, UT
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.769170
Confidence Level: Low
Confidence Level Comments: No Data Available
Grank: GNR
Greasons: No Data Available
| Type | Name | Database Code | Classification Code |
|---|---|---|---|
| Class | 1 Forest & Woodland Class | C01 | 1 |
| Subclass | 1.B Temperate & Boreal Forest & Woodland Subclass | S15 | 1.B |
| Formation | 1.B.2 Cool Temperate Forest & Woodland Formation | F008 | 1.B.2 |
| Division | 1.B.2.Nc Western North American Pinyon - Juniper Woodland & Scrub Division | D010 | 1.B.2.Nc |
| Macrogroup | 1.B.2.Nc.1 Singleleaf Pinyon - Utah Juniper - Western Juniper Intermountain Woodland Macrogroup | M896 | 1.B.2.Nc.1 |
| Group | 1.B.2.Nc.1.a Two-needle Pinyon - Utah Juniper Woodland Group | G900 | 1.B.2.Nc.1.a |
| Alliance | A3497 Utah Juniper Grassy Open Woodland Alliance | A3497 | 1.B.2.Nc.1.a |
| Association | CEGL002362 Utah Juniper / James'' Galleta Open Woodland | CEGL002362 | 1.B.2.Nc.1.a |
Concept Lineage: No Data Available
Predecessors: No Data Available
Obsolete Names: No Data Available
Obsolete Parents: No Data Available
Synonomy: = Juniperus osteosperma / Pleuraphis jamesii Woodland (Clark et al. 2009)
- Clark, D., M. Dela Cruz, T. Clark, J. Coles, S. Topp, A. Evenden, A. Wight, G. Wakefield, and J. Von Loh. 2009. Vegetation classification and mapping project report, Capitol Reef National Park. Natural Resource Report NPS/NCPN/NRTR--2009/187. National Park Service, Fort Collins, CO. 882 pp.
- Coles, J., D. Cogan, D. Salas, A. Wight, G. Wakefield, J. Von Loh, and A. Evenden. 2008a. Vegetation classification and mapping project report, Dinosaur National Monument. Natural Resource Technical Report NPS/NCPN/NRTR-2008/112. National Park Service, Fort Collins, CO. 814 pp.
- Kearsley, M. J. C., K. Green, M. Tukman, M. Reid, M. Hall, T. J. Ayers, and K. Christie. 2015. Grand Canyon National Park-Grand Canyon / Parashant National Monument vegetation classification and mapping project. Natural Resource Report NPS/GRCA/NRR--2015/913. National Park Service, Fort Collins, CO. 75 pp. plus appendices.
- Reid, M. S., and M. E. Hall. 2010. Vegetation classification of Grand Canyon National Park. Draft report submitted to National Park Service, Fort Collins, CO.
- Romme, W. H., K. D. Heil, J. M. Porter, and R. Fleming. 1993. Plant communities of Capitol Reef National Park, Utah. USDI National Park Service, Technical Report NPS/NAUCARE/NRTER-93/02. Cooperative Park Studies Unit, Northern Arizona University. 37 pp.
- Tendick, A., J. Coles, K. Decker, M. Hall, J. Von Loh, T. Belote, A. Wight, G. Wakefield, and A. Evenden. 2012. Vegetation classification and mapping project report, Canyonlands National Park. Natural Resource Technical Report NPS/NCPN/NRTR--2012/577. National Park Service, Fort Collins, CO.
- Tendick, A., J. Spence, M. Reid, K. Shulz, G. Kittel, K. Green, A. Wight, and G. Wakefield. 2017. Vegetation classification and mapping project report, Glen Canyon National Recreation Area and Rainbow Bridge National Monument. Natural Resource Report NPS/NCPN/NRR—2017/1500. National Park Service, Fort Collins, CO. 1464 pp.
- Western Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Boulder, CO.