Print Report

CEGL000878 Pinus ponderosa Scree Woodland

Type Concept Sentence: No Data Available


Common (Translated Scientific) Name: Ponderosa Pine Scree Woodland

Colloquial Name: Ponderosa Pine Scree Woodland

Hierarchy Level:  Association

Type Concept: In the Black Hills, talus and scree slopes are found scattered throughout at elevations in the range of 1100 to 1980 m (3600-6500 feet). They are best developed in association with metamorphic rock outcrops (schist, slate) in the Central Core, sandstone cliffs and canyons in the Hogback Rim, and Tertiary igneous features in the northern Black Hills (e.g., Devils Tower, Sundance Mountain, Bear Butte). Soils generally are poor and restricted to small accumulations among talus and scree. The concept of this type applies to stands with greater than 20% tree canopy cover dominated by Pinus ponderosa. The understory is thought to be generally sparse. See BHCI report.

Diagnostic Characteristics: No Data Available

Rationale for Nominal Species or Physiognomic Features: No Data Available

Classification Comments: This type may be related to talus/scree types in the Rocky Mountains. In the Black Hills, it perhaps should be combined with ~Scree - Talus Black Hills Sparse Vegetation (CEGL002307)$$, but there currently is insufficient information to do so. The Ponderosa Pine Scree Woodland community is characterized by greater tree cover than the talus type (usually greater than 20%), but with a sparse understory. There may not be enough examples of scree woodland in the Black Hills to justify recognizing two scree types.

Similar NVC Types: No Data Available
note: No Data Available

Physiognomy and Structure: No Data Available

Floristics: This type applies to stands with greater than 20% tree canopy cover dominated by Pinus ponderosa. The understory is thought to be generally sparse. Little information is currently available as to species composition and structure of this type. Two stands surveyed during the Black Hills Community Inventory were classified as scree woodland, but overall pine cover was less than 5% (Marriott et al. 1999, Marriott and Faber-Langendoen 2000).

Dynamics:  No Data Available

Environmental Description:  Talus and scree slopes are found scattered throughout the Black Hills at elevations in the range of 1100 to 1980 m (3600-6500 feet). They are best developed in association with metamorphic rock outcrops (schist, slate) in the Central Core, sandstone cliffs and canyons in the Hogback Rim, and Tertiary igneous features in the northern Black Hills (e.g., Devils Tower, Sundance Mountain, Bear Butte). Soils generally are poor, and restricted to small accumulations among talus and scree (Marriott and Faber-Langendoen 2000).

Geographic Range: This type is found in the Black Hills and Rocky Mountains of the western United States. Talus and scree slopes are found scattered throughout the Black Hills, and are best developed in association with metamorphic rock outcrops (schist, slate) in the Central Core, sandstone cliffs and canyons in the Hogback Rim, and Tertiary igneous features in the northern Black Hills (e.g., Devils Tower, Sundance Mountain, Bear Butte).

Nations: US

States/Provinces:  MT, SD, WY?




Confidence Level: Low

Confidence Level Comments: No Data Available

Grank: G4

Greasons: No Data Available


Concept Lineage: No Data Available

Predecessors: No Data Available

Obsolete Names: No Data Available

Obsolete Parents: No Data Available

Synonomy: = Pinus ponderosa Scree Woodland (Faber-Langendoen 2001)

Concept Author(s): D. Faber-Langendoen

Author of Description: D. Faber-Langendoen

Acknowledgements: No Data Available

Version Date: 11-09-00

  • BHCI [Black Hills Community Inventory]. 1999. Unpublished element occurrence and plot data collected during the Black Hills Community Inventory. Available upon request from the South Dakota Natural Heritage Program, Pierre, and Wyoming Natural Diversity Database, Laramie.
  • 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.
  • Faber-Langendoen, D., editor. 2001. Plant communities of the Midwest: Classification in an ecological context. Association for Biodiversity Information, Arlington, VA. 61 pp. plus appendix (705 pp.).
  • MTNHP [Montana Natural Heritage Program]. 2002b. List of ecological communities for Montana. Montana Natural Heritage Program, Montana State Library, Helena, MT.
  • Marriott, H. J., D. Faber-Langendoen, A. McAdams, D. Stutzman, and B. Burkhart. 1999. The Black Hills Community Inventory: Final report. The Nature Conservancy, Midwest Conservation Science Center, Minneapolis, MN.
  • Marriott, H. J., and D. Faber-Langendoen. 2000. The Black Hills community inventory. Volume 2: Plant community descriptions. The Nature Conservancy, Midwest Conservation Science Center and Association for Biodiversity Information, Minneapolis, MN. 326 pp.
  • Western Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Boulder, CO.