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CEGL005504 Populus tremuloides - Ceanothus fendleri / Carex spp. Scrub

Type Concept Sentence: No Data Available


Common (Translated Scientific) Name: Quaking Aspen - Fendler''s Ceanothus / Sedge species Scrub

Colloquial Name: No Data Available

Hierarchy Level:  Association

Type Concept: This quaking aspen shrubland association is currently described from Grand Canyon National Park in Arizona. More survey and classification work are needed to fully characterize this type. It occurs from 2512 to 2684 m (8241-8806 feet) elevation in areas that have recently experienced high-intensity fires. It typically occurs on plateaus, on gentle slopes (1-8°), and on south- or southwest-facing aspects, but can also occur on steeper sideslopes (up to 30°) as well. Soils are predominantly silty loams or sandy loams. This association lacks tree cover, as all of the trees have died in recent high-severity burns. A layer of regenerating Populus tremuloides characterizes this association. Ceanothus fendleri is a dominant and consistent component of the dwarf-shrub stratum, and Mahonia repens also occurs frequently. Dryland sedges are extremely frequent in this vegetation type, including Carex rossii and Carex siccata. Dominant forb species include Achillea millefolium, Lotus utahensis, and the fire-adapted Gayophytum diffusum. Other fire-loving species, including Erigeron divergens, Chenopodium sp., Conyza canadensis, Pseudostellaria jamesiana, Pseudognaphalium macounii, and Arenaria lanuginosa, occur sporadically.

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: No Data Available

Dynamics:  No Data Available

Environmental Description:  No Data Available

Geographic Range: This association is currently known from Grand Canyon National Park in Arizona. More survey work is needed to fully document its global range.

Nations: US

States/Provinces:  AZ




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: = Populus tremuloides - Ceanothus fendleri / Carex spp. Shrubland (Reid and Hall 2010)

Concept Author(s): M. Reid and M. Hall (2010)

Author of Description: K. Christie

Acknowledgements: No Data Available

Version Date: 07-30-10

  • Kearsley, M. J. C., K. Green, M. Tukman, M. Reid, M. Hall, T. J. Ayers, and K. Christie. 2015. Grand Canyon National Park-Grand Canyon / Parashant National Monument vegetation classification and mapping project. Natural Resource Report NPS/GRCA/NRR--2015/913. National Park Service, Fort Collins, CO. 75 pp. plus appendices.
  • 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.
  • Western Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Boulder, CO.