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CEGL005397 Pinus monophylla - Juniperus osteosperma / Purshia stansburiana Woodland
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Singleleaf Pinyon - Utah Juniper / Stansbury''s Cliffrose Woodland
Colloquial Name: No Data Available
Hierarchy Level: Association
Type Concept: This pinyon-juniper woodland association is currently described from Canyon-Parashant National Monument in Arizona. It also occurs in Mojave National Preserve in California. More survey and classification work are needed to fully characterize this type. It typically occurs at 1775 to 1850 m (5860-6050 feet) elevation on gently to moderately sloping (1-14°) high-level plateaus, low-level valley bottoms, and mid to upper sideslopes. It often favors south-facing aspects. Soils tend to be well- or rapidly-drained silty clay loams derived from limestone parent materials. This woodland association supports sparse to dense tree canopy of Juniperus osteosperma and Pinus monophylla. Purshia stansburiana dominates and characterizes the shrub strata. Various short shrubs such as Gutierrezia sarothrae, Ephedra viridis, Artemisia tridentata, and Yucca baccata occur occasionally at relatively low individual covers. Cylindropuntia whipplei and Opuntia sp. are frequent components of the very sparse dwarf-shrub stratum. The herbaceous understory is poorly developed; frequent graminoids include Bromus tectorum, Bouteloua gracilis, Poa fendleriana, and Elymus elymoides, while notable forbs include Eriogonum umbellatum, Cordylanthus parviflorus, Frasera albomarginata, and Comandra umbellata. This vegetation type occurs within a large matrix of pinyon-juniper vegetation types.
Diagnostic Characteristics: No Data Available
Rationale for Nominal Species or Physiognomic Features: No Data Available
Classification Comments: No Data Available
Similar NVC Types: No Data Available
note: No Data Available
Physiognomy and Structure: No Data Available
Floristics: This woodland association supports sparse to dense tree canopy of Juniperus osteosperma and Pinus monophylla. Purshia stansburiana dominates and characterizes the shrub strata. Various short shrubs such as Gutierrezia sarothrae, Ephedra viridis, Artemisia tridentata, and Yucca baccata occur occasionally at relatively low individual covers. Cylindropuntia whipplei (= Opuntia whipplei) and Opuntia sp. are frequent components of the very sparse dwarf-shrub stratum. The herbaceous understory is poorly developed; frequent graminoids include Bromus tectorum, Bouteloua gracilis, Poa fendleriana, and Elymus elymoides, while notable forbs include Eriogonum umbellatum, Cordylanthus parviflorus, Frasera albomarginata, and Comandra umbellata. This vegetation type occurs within a large matrix of pinyon-juniper vegetation types.
Dynamics: No Data Available
Environmental Description: This pinyon-juniper woodland typically occurs at 1775 to 1850 m (5860-6050 feet) elevation on gently to moderately sloping (1-14°) high-level plateaus, low-level valley bottoms, and mid to upper sideslopes. It often favors south-facing aspects. Soils tend to be well- or rapidly-drained silty clay loams derived from limestone parent materials.
Geographic Range: This association is currently known from Grand Canyon National Park and Grand Canyon-Parashant National Monument in Arizona. It also occurs in Mojave National Preserve in California. More survey work is needed to fully document its global range.
Nations: US
States/Provinces: AZ, CA
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.841827
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.c Singleleaf Pinyon - Utah Juniper Woodland Group | G899 | 1.B.2.Nc.1.c |
| Alliance | A2108 Singleleaf Pinyon - Utah Juniper Shrubby Woodland Alliance | A2108 | 1.B.2.Nc.1.c |
| Association | CEGL005397 Singleleaf Pinyon - Utah Juniper / Stansbury''s Cliffrose Woodland | CEGL005397 | 1.B.2.Nc.1.c |
Concept Lineage: No Data Available
Predecessors: No Data Available
Obsolete Names: No Data Available
Obsolete Parents: No Data Available
Synonomy: = Pinus monophylla - Juniperus osteosperma / Purshia stansburiana Woodland (Reid and Hall 2010)
= Pinus monophylla - Juniperus osteosperma / Purshia stansburiana Woodland (Keeler-Wolf and Thomas 2000)
? Pinus monophylla / Juniperus osteosperma / Purshia mexicana (Sawyer et al. 2009) [87.040.13]
= Pinus monophylla-Juniperus osteosperma / Purshia stansburiana Association (Evens et al. 2014)
= Pinus monophylla - Juniperus osteosperma / Purshia stansburiana Woodland (Keeler-Wolf and Thomas 2000)
? Pinus monophylla / Juniperus osteosperma / Purshia mexicana (Sawyer et al. 2009) [87.040.13]
= Pinus monophylla-Juniperus osteosperma / Purshia stansburiana Association (Evens et al. 2014)
- Evens, J. M., K. Sikes, D. Hastings, and J. Ratchford. 2014. Vegetation alliance descriptions for Lake Mead National Recreation Area, Death Valley National Park and Mojave National Preserve. Unpublished report submitted to USDI National Park Service, Mojave Desert Network Inventory and Monitoring Program. California Native Plant Society, Sacramento, CA.
- 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.
- Keeler-Wolf, T., and K. Thomas. 2000. Draft descriptions of vegetation alliances for the Mojave Ecosystem Mapping project. California Natural Diversity Database, California Department of Fish and Game, Sacramento.
- 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.
- Sawyer, J. O., T. Keeler-Wolf, and J. Evens. 2009. A manual of California vegetation. Second edition. California Native Plant Society, Sacramento CA. 1300 pp.
- Western Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Boulder, CO.