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CEGL002999 Pinus ponderosa / Fallugia paradoxa Woodland
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Ponderosa Pine / Apache Plume Woodland
Colloquial Name: No Data Available
Hierarchy Level: Association
Type Concept: This association is only known from Sunset Crater Volcano National Monument in Arizona and is likely to occur in similar settings where volcanic rock is the predominant geology. At Sunset Crater, it is found on level cinder areas and steeper cinder slopes (0-45% slope) in the eastern section of the park. It is also the most common association in the eastern half of the park environs. Elevation ranges from 1975-2450 m (6479-8038 feet). Vegetation is characterized by open to moderately closed canopies (9-55% cover) of Pinus ponderosa. Other canopy associates include Juniperus osteosperma, Pinus edulis, and Pseudotsuga menziesii. The understory is dominated by a shrub layer of Fallugia paradoxa which ranges from 1-45% cover. Other associated shrubs include Ericameria nauseosa, Forestiera pubescens, and Ribes cereum. Herbaceous cover tends to be low (average 4%), but may reach 20% total cover and may include Alhagi maurorum, Andropogon hallii, Bouteloua gracilis, and Bromus tectorum.
Diagnostic Characteristics: No Data Available
Rationale for Nominal Species or Physiognomic Features: No Data Available
Classification Comments: This association is very similar to ~Pinus ponderosa / Fallugia paradoxa - Ribes cereum Woodland (CEGL005032)$$ from El Malpais National Monument. However, CEGL005032 tends to occupy more mesic positions at higher elevations associated with volcanic collapse features and interstitial spaces that favor Ribes cereum.
Similar NVC Types: No Data Available
note: No Data Available
Physiognomy and Structure: No Data Available
Floristics: At Sunset Crater, the vegetation is characterized by open to moderately closed canopies (9-55% cover) of Pinus ponderosa. Other canopy associates include Juniperus osteosperma, Pinus edulis, and Pseudotsuga menziesii. The understory is dominated by a shrub layer of Fallugia paradoxa which ranges from 1-45% cover. Other associated shrubs include Ericameria nauseosa, Forestiera pubescens, and Ribes cereum. Herbaceous cover tends to be low (average 4%), but may reach 20% total cover and may include Alhagi maurorum, Andropogon hallii, Bouteloua gracilis, and Bromus tectorum.
Dynamics: Disturbances such as periodic flooding, arroyo cutting, and sustained livestock grazing can weaken the tree and perennial grass components and increase the importance of shrubs and annuals.
Environmental Description: This association is widespread geographically but often occurs very locally in the landscape in intermittent washes and river terraces, often between 1920 and 2290 m (6300-7500 feet) elevation. Common soils include Typic Ustifluvents, Fluventic Haplustolls, and Fluventic Ustocherpts. These are often incised with arroyos or gullies. It is also found on deep cindery soils. Site specific determination of soils may be required.
At Sunset Crater, it is found on level cinder areas and steeper cinder slopes (0-45% slope) in the eastern section of the park. It is also the most common association in the eastern half of the park environs. Elevation ranges from 1975-2450 m (6479-8038 feet).
At Sunset Crater, it is found on level cinder areas and steeper cinder slopes (0-45% slope) in the eastern section of the park. It is also the most common association in the eastern half of the park environs. Elevation ranges from 1975-2450 m (6479-8038 feet).
Geographic Range: This woodland association is currently known from Arizona, including Sunset Crater Volcano National Monument.
Nations: US
States/Provinces: AZ
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.683793
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.Nb Rocky Mountain Forest & Woodland Division | D194 | 1.B.2.Nb |
| Macrogroup | 1.B.2.Nb.1 White Fir - Douglas-fir - Blue Spruce Forest Macrogroup | M022 | 1.B.2.Nb.1 |
| Group | 1.B.2.Nb.1.b Ponderosa Pine Southern Rocky Mountain Forest & Woodland Group | G228 | 1.B.2.Nb.1.b |
| Alliance | A3398 Ponderosa Pine Southern Rocky Mountain Forest & Woodland Alliance | A3398 | 1.B.2.Nb.1.b |
| Association | CEGL002999 Ponderosa Pine / Apache Plume Woodland | CEGL002999 | 1.B.2.Nb.1.b |
Concept Lineage: No Data Available
Predecessors: No Data Available
Obsolete Names: No Data Available
Obsolete Parents: No Data Available
Synonomy: = Pinus edulis / Chrysothamnus nauseosus - Fallugia paradoxa (Stuever and Hayden 1997b)
= Pinus ponderosa / Fallugia paradoxa Woodland (Hansen et al. 2004c)
= Pinus ponderosa / Fallugia paradoxa Woodland (Hansen et al. 2004c)
- Hansen, M., J. Coles, K. A. Thomas, D. Cogan, M. Reid, J. Von Loh, and K. Schulz. 2004c. USGS-NPS Vegetation Mapping Program: Sunset Crater National Monument, Arizona, vegetation classification and distribution. U.S. Geological Survey Technical Report. Southwest Biological Science Center, Flagstaff, AZ. 188 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.
- Western Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Boulder, CO.