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CEGL000854 Pinus ponderosa / Purshia stansburiana Woodland
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Ponderosa Pine / Stansbury''s Cliffrose Woodland
Colloquial Name: No Data Available
Hierarchy Level: Association
Type Concept: These woodlands occur in central Arizona near the southern limit of Pinus ponderosa, and may also occur in central New Mexico north into Colorado, Utah, Wyoming and Idaho. Elevation ranges from 2040-2440 m. Sites often have a rough and rocky topography, but include flat and undulating terrain. Substrates are rocky, shallow, sandy textured soils typically derived from limestone, but also the association may also occur on sandstone and igneous parent materials. Stands have an open (>10% cover) tree canopy that is dominated by the needle-leaved evergreen tree, Pinus ponderosa. Other tree species present may include Pinus edulis, Juniperus osteosperma, Juniperus scopulorum, Quercus gambelii, and occasionally Pseudotsuga menziesii. The short-shrub layer has 5-25% cover with the deciduous shrub Purshia stansburiana being diagnostic of this type. Other common shrub species include Artemisia nova, Purshia tridentata, Rhus trilobata, Quercus gambelii, Mahonia repens, Yucca baccata and Yucca glauca. The relatively sparse (5-25% cover) herbaceous layer is dominated by graminoids such as Muhlenbergia montana, Bouteloua spp., Aristida arizonica, Poa fendleriana, and Elymus elymoides with scattered forbs such as Heterotheca villosa, Solidago spp., Eriogonum racemosum, and Tradescantia pinetorum.
Diagnostic Characteristics: Must have Purshia stansburiana in the understory. Abies concolor is absent or accidental, but occasional Pseudotsuga menziesii may be present in the late-successional overstory.
Rationale for Nominal Species or Physiognomic Features: No Data Available
Classification Comments: In Utah, Purshia stansburiana hybridizes with Purshia tridentata and Purshia glandulosa which may make distinguishing these woodlands from similar associations difficult. More survey is needed to determine the extent of this association.
Similar NVC Types: No Data Available
note: No Data Available
Physiognomy and Structure: No Data Available
Floristics: Stands have an open (>10% cover) tree canopy that is dominated by the needle-leaved evergreen tree Pinus ponderosa. Other tree species present may include Pinus edulis, Juniperus osteosperma, Juniperus scopulorum, Quercus gambelii, and occasionally Pseudotsuga menziesii. The short-shrub layer has 5-25% cover with the deciduous shrub Purshia stansburiana (= Purshia mexicana var. stansburiana) being diagnostic of this type. Other common shrub species include Artemisia nova, Purshia tridentata, Rhus trilobata, Quercus gambelii, Mahonia repens, Yucca baccata and Yucca glauca. The relatively sparse (5-25% cover) herbaceous layer is dominated by graminoids such as Muhlenbergia montana, Bouteloua spp., Aristida arizonica, Poa fendleriana, and Elymus elymoides with scattered forbs such as Heterotheca villosa, Solidago spp., Eriogonum racemosum, and Tradescantia pinetorum.
Dynamics: Cliffrose resprouts poorly and most sprouts die within the first few years of a fire. Where a mosaic burn leaves mature cliffrose patches unburned, recolonization via seed can be rapid.
Environmental Description: Elevation ranges from 2040-2440 m. Sites often have a rough and rocky topography, but include flat and undulating terrain. Substrates are rocky, shallow, sandy textured soils typically derived from limestone, but also the association may also occur on sandstone and igneous parent materials.
Geographic Range: This association has been described from sites on the Apache-Sitgreaves National Forest and Grand Canyon National Park in central and north-central Arizona, and likely occurs elsewhere on the Mogollon Rim. It also occurs in northern New Mexico (Zuni Mountains, Jicarilla Apache Reservation), Colorado, and possibly Utah and Idaho.
Nations: US
States/Provinces: AZ, CO, ID?, NM?, UT?
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.688988
Confidence Level: Low - Poorly Documented
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.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 | CEGL000854 Ponderosa Pine / Stansbury''s Cliffrose Woodland | CEGL000854 | 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 ponderosa / Cowania mexicana (USFS 1987a)
= Pinus ponderosa / Cowania mexicana community type (Hanks et al. 1983)
< Pinus ponderosa / Purshia stansburiana (Stuever and Hayden 1997a)
= Pinus ponderosa / Cowania mexicana community type (Hanks et al. 1983)
< Pinus ponderosa / Purshia stansburiana (Stuever and Hayden 1997a)
- 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.
- FEIS [Fire Effects Information System]. 1996. Prescribed fire and fire effects research work unit, Rocky Mountain Research Station (producer). [www.fs.fed.us/database/feis/] (accessed 1998 March 12)
- Hanks, J. P., E. L. Fitzhugh, and S. R. Hanks. 1983. A habitat type classification system for ponderosa pine forests of northern Arizona. General Technical Report RM-97. USDA Forest Service, Rocky Mountain Forest and Range Experiment Station, Fort Collins, CO. 22 pp.
- Howard, J. L. 1995. Purshia mexicana var. stansburiana. In: Fire Effects Information System [Online]. USDA Forest Service, Rocky Mountain Research Station, Fire Sciences Laboratory (Producer). [http://www.fs.fed.us/database/feis/] (accessed 28 June 2011).
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- 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.
- Stuever, M. C., and J. S. Hayden. 1997a. Plant associations of Arizona and New Mexico, edition 3. Volume 1: Forests. USDA Forest Service, Southwestern Region. Habitat Typing Guides. 291 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.
- USFS [U.S. Forest Service]. 1987a. Forest and woodland habitat types (plant associations) of northern New Mexico and northern Arizona. USDA Forest Service, Southwestern Region, Albuquerque, NM. Second edition, 170 pp. plus insert.
- Warren, P. L., K. L. Reichhardt, D. A. Mouat, B. T. Brown, and R. R. Johnson. 1982. Vegetation of Grand Canyon National Park. Cooperative National Park Resources Studies Unit Technical Report 9. Tucson, AZ. 140 pp.
- Western Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Boulder, CO.
- Youngblood, A. P., and R. L. Mauk. 1985. Coniferous forest habitat types of central and southern Utah. General Technical Report INT-187. USDA Forest Service, Intermountain Research Station, Ogden, UT. 89 pp.