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CEGL002929 Pinus ponderosa - (Populus tremuloides) / Fallugia paradoxa - (Holodiscus dumosus) Lava Bed Sparse Vegetation

Type Concept Sentence: No Data Available


Common (Translated Scientific) Name: Ponderosa Pine - (Quaking Aspen) / Apache Plume - (Rockspirea) Lava Bed Sparse Vegetation

Colloquial Name: No Data Available

Hierarchy Level:  Association

Type Concept: This sparse association is currently only known from Sunset Crater Volcano National Monument in Arizona, and the following description is based on occurrences there. Additional information will be added as it becomes available. Elevation is fairly constant and ranges from 2100-2130 m. Slope ranges from 0-15% slope. The substrate consists of large soil pockets within aa lava and at the edge of the lava beds. Total vegetation cover ranges from 5-45%. Species richness ranges from 4-22 within 5 sampled plots. The sparse (0-30% cover) tree layer consists of scattered individuals of Pinus ponderosa and Populus tremuloides. The shrub layer (4-6%) consists of mainly Fallugia paradoxa and Holodiscus dumosus. The herbaceous layer is sparse (1-5%).

Diagnostic Characteristics: No Data Available

Rationale for Nominal Species or Physiognomic Features: No Data Available

Classification Comments: This type is likely to occur throughout the Malpais of western New Mexico, and into other lava beds of Arizona. Further documentation is needed.

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

Physiognomy and Structure: No Data Available

Floristics: No Data Available

Dynamics:  No Data Available

Environmental Description:  No Data Available

Geographic Range: This sparse association is currently only known from Sunset Crater Volcano National Monument in Arizona. It may also occur in New Mexico. Additional range information will be added as it becomes available.

Nations: US

States/Provinces:  AZ, NM?




Confidence Level: Low

Confidence Level Comments: No Data Available

Grank: GNR

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 -(Populus tremuloides) / Fallugia paradoxa -(Holodiscus dumosus) Lava Bed Sparse Vegetation (Hansen et al. 2004c)

Concept Author(s): Hansen et al. (2004c)

Author of Description: K.A. Schulz

Acknowledgements: No Data Available

Version Date: 05-06-10

  • 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.
  • Western Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Boulder, CO.