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CEGL002361 Juniperus osteosperma / Bouteloua gracilis Open Woodland
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Utah Juniper / Blue Grama Open Woodland
Colloquial Name: No Data Available
Hierarchy Level: Association
Type Concept: This woodland association has only been described from Capitol Reef National Park in southern Utah. This summary is derived from plot data collected in the park in 2003. It is documented from the slopes of broad sedimentary valleys. Sites slope gently to the east at 1561 m elevation. The unvegetated surface has moderate cover of litter and high cover of gravel. There is low to moderate exposure of bare soil. Soils are well-drained and texturally are sandy loam derived from the underlying Morrison Formation. Total vegetation cover does not exceed 35% in this sparsely vegetated stand. The vegetation is characterized by a savanna-like distribution of 2- to 5-m tall Juniperus osteosperma that have up to 15% cover and the shortgrass Bouteloua gracilis that has up to 5% cover. There is no developed shrub layer, but scattered shrubs may include Gutierrezia sarothrae. Young Juniperus osteosperma may also be present. The herbaceous layer is low in species diversity and sparse in terms of cover. Vulpia octoflora is the only recorded species.
Diagnostic Characteristics: A juniper savanna with a rich understory of grasses, usually including Bouteloua gracilis. Juniperus osteosperma is the dominant tree, although pinyon pine may be present, but is usually confined to microsites.
Rationale for Nominal Species or Physiognomic Features: No Data Available
Classification Comments: This association has only been described from Capitol Reef National Park. Until further inventory is completed, there is no global information.
Similar NVC Types: No Data Available
note: No Data Available
Physiognomy and Structure: No Data Available
Floristics: This association has only been described from Capitol Reef National Park. Until further inventory is completed there is no global information.
Dynamics: This association has only been described from Capitol Reef National Park. Until further inventory is completed there is no global information.
Environmental Description: This juniper woodland occurs in valleys and on elevated plains and piedmont alluvial fans. Elevations range from 1525 to 1825 m (5000-6000 feet).
Geographic Range: This association is primarily known from central and northern Arizona and is likely to occur in adjacent New Mexico.
Nations: US
States/Provinces: AZ, NM?, UT
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.769165
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 | CEGL002361 Utah Juniper / Blue Grama Open Woodland | CEGL002361 | 1.B.2.Nc.1.a |
Concept Lineage: Upgraded to Standard during screening.
Predecessors: No Data Available
Obsolete Names: No Data Available
Obsolete Parents: No Data Available
Synonomy: = Juniperus osteosperma / Bouteloua gracilis (Stuever and Hayden 1997b)
= Juniperus osteosperma / Bouteloua gracilis Woodland (Clark et al. 2009)
= Juniperus osteosperma / Bouteloua gracilis 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.
- 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.
- Salas, D., and C. Bolen. 2010b. Vegetation classification and distribution mapping report: Hubbell Trading Post National Historic Site. Natural Resource Technical Report NPS/SCPN/NRTR-2010/301. National Park Service, Fort Collins, CO. 35 pp.
- Stuever, M. C., and J. S. Hayden. 1997b. Plant associations of Arizona and New Mexico. Volume 2: Woodlands. USDA Forest Service, Southwestern Region, Habitat Typing Guides. 196 pp.
- Tirmenstein, D. A. 1986. Juniperus osteosperma. In: Fire Effects Information System [Online]. USDA Forest Service, Rocky Mountain Research Station, Fire Sciences Laboratory (Producer). [http://www.fs.fed.us/database/feis/]
- Tirmenstein, D. A. 1987b. Bouteloua gracilis. In: Fire Effects Information System [Online]. USDA Forest Service, Rocky Mountain Research Station, Fire Sciences Laboratory (Producer). [http://www.fs.fed.us/database/feis/]
- USFS [U.S. Forest Service]. 1986. Forest and woodland habitat types (plant associations) of southern New Mexico and central Arizona (north of the Mogollon Rim). USDA Forest Service, Southwestern Region, Albuquerque, NM. Second edition, 140 pp. plus insert.
- USFS [U.S. Forest Service]. 1987b. Forest and woodland habitat types (plant associations) of Arizona south of the Mogollon Rim and southwestern New Mexico. USDA Forest Service, Southwestern Region, Albuquerque, NM. Second edition, 168 pp. plus insert.
- Western Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Boulder, CO.