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CEGL000823 Pinus leiophylla / Quercus emoryi Woodland
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Chihuahuan Pine / Emory Oak Woodland
Colloquial Name: No Data Available
Hierarchy Level: Association
Type Concept: This highly diverse "Madrean" woodland association is restricted to the isolated "sky island" mountain ranges of southwestern New Mexico, southern Arizona, and northern Mexico. It is specifically known from Canelo Hills, and Patagonia, Pinaleno, Galiuro, Huachuca mountains in southern Arizona, and the Peloncillo Mountains in New Mexico. There are a few isolated outliers in the central highlands of Arizona (Tonto National Forest and Fort Apache Indian Reservation). This warm, dry association reaches the lowest elevations of the alliance, ranging from 1510-1970 m (4960-6450 feet). It is generally found on moderate slopes of northerly aspect. In the southern portion of its range it occurs on rhyolite and granite; to the north it occurs on sandstone. Soils tend to be shallow and rocky. Pinus leiophylla forms an open canopy with Pinus cembroides and Juniperus deppeana in the subcanopy. Pinus ponderosa sometimes is present as a climax codominant. A diagnostic feature is well-represented to abundant cover of Quercus emoryi, which occurs as a small tree or shrub. Quercus arizonica is also well-represented and often codominates, but Quercus hypoleucoides is poorly represented. Other shrubs include Arctostaphylos pungens, Arctostaphylos pringlei, Nolina microcarpa, Garrya wrightii, and Rhus aromatica. This type has a distinctively grassy undergrowth dominated by Madrean drought-tolerant species such as Muhlenbergia longiligula, Muhlenbergia emersleyi, Aristida schiedeana var. orcuttiana, and Schizachyrium cirratum. Forbs are diverse, variable, and scattered; the most constant species are Packera neomexicana, Glandularia bipinnatifida, Lathyrus graminifolius, Gnaphalium spp., and Cheilanthes fendleri.
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: Pinus leiophylla forms an open canopy with Pinus cembroides and Juniperus deppeana in the subcanopy. Pinus ponderosa sometimes is present as a climax codominant. A diagnostic feature is well-represented to abundant cover of Quercus emoryi, which occurs as a small tree or shrub. Quercus arizonica is also well-represented and often codominates, but Quercus hypoleucoides is poorly represented. Other shrubs include Arctostaphylos pungens, Arctostaphylos pringlei, Nolina microcarpa, Garrya wrightii, and Rhus aromatica. This type has a distinctively grassy undergrowth dominated by Madrean drought-tolerant species such as Muhlenbergia longiligula, Muhlenbergia emersleyi, Aristida schiedeana var. orcuttiana (= Aristida orcuttiana), and Schizachyrium cirratum. Forbs are diverse, variable, and scattered; the most constant species are Packera neomexicana (= Senecio neomexicanus), Glandularia bipinnatifida (= Verbena bipinnatifida), Lathyrus graminifolius, Gnaphalium spp., and Cheilanthes fendleri.
Dynamics: No Data Available
Environmental Description: This warm, dry association reaches the lowest elevations of the alliance, ranging from 1510-1970 m (4960-6450 feet). It is generally found on moderate slopes of northerly aspect. In the southern portion of its range it occurs on rhyolite and granite; to the north it occurs on sandstone. Soils tend to be shallow and rocky.
Geographic Range: This highly diverse "Madrean" woodland association is restricted to the isolated "sky island" mountain ranges of southwestern New Mexico, southern Arizona, and northern Mexico. It is specifically known from Canelo Hills, and Patagonia, Pinaleno, Galiuro, Huachuca mountains in southern Arizona, and the Peloncillo Mountains in New Mexico. There are a few isolated outliers in the central highlands of Arizona (Tonto National Forest and Fort Apache Indian Reservation).
Nations: MX,US
States/Provinces: AZ, MXCHH, MXCOA, NM
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.688153
Confidence Level: Low
Confidence Level Comments: No Data Available
Grank: G3
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.1 Warm Temperate Forest & Woodland Formation | F018 | 1.B.1 |
| Division | 1.B.1.Nd Madrean-Balconian Forest & Woodland Division | D060 | 1.B.1.Nd |
| Macrogroup | 1.B.1.Nd.2 Chihuahuan Pine - Douglas-fir / Silverleaf Oak Madrean Montane Forest & Woodland Macrogroup | M011 | 1.B.1.Nd.2 |
| Group | 1.B.1.Nd.2.a Apache Pine - Chihuahuan Pine - Arizona Pine Forest & Woodland Group | G203 | 1.B.1.Nd.2.a |
| Alliance | A3112 Arizona Pine - Apache Pine - Chihuahuan Pine Woodland Alliance | A3112 | 1.B.1.Nd.2.a |
| Association | CEGL000823 Chihuahuan Pine / Emory Oak Woodland | CEGL000823 | 1.B.1.Nd.2.a |
Concept Lineage: No Data Available
Predecessors: No Data Available
Obsolete Names: No Data Available
Obsolete Parents: No Data Available
Synonomy: = Pinus leiophylla / Quercus emoryi Habitat Type (Muldavin et al. 1987)
= Pinus leiophylla / Quercus emoryi Habitat Type (Muldavin et al. 1996)
= Pinus leiophylla / Quercus emoryi Habitat Type (Muldavin et al. 1996)
- Bourgeron, P. S., and L. D. Engelking, editors. 1994. A preliminary vegetation classification of the western United States. Unpublished report. The Nature Conservancy, Western Heritage Task Force, Boulder, CO. 175 pp. plus appendix.
- Muldavin, E. H., R. L. DeVelice, and F. Ronco, Jr. 1996. A classification of forest habitat types of southern Arizona and portions of the Colorado Plateau. General Technical Report RM-GTR-287. USDA Forest Service, Rocky Mountain Forest and Range Experiment Station, Fort Collins, CO. 130 pp.
- Muldavin, E., R. DeVelice, and W. Dick-Peddie. 1987. Forest habitat types of the Prescott, Tonto and western Coronado national forests, Arizona. Unpublished final report prepared for Rocky Mountain Forest and Range Experiment Station, CO. 71 pp.
- Western Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Boulder, CO.