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CEGL005969 Populus deltoides / Ericameria nauseosa Flooded Forest

Type Concept Sentence: No Data Available


Common (Translated Scientific) Name: Eastern Cottonwood / Rubber Rabbitbrush Flooded Forest

Colloquial Name: No Data Available

Hierarchy Level:  Association

Type Concept: This association is found in the San Juan River basin in northwestern New Mexico. The type is found in wide lowland valleys at elevations ranging from 1410 to 1840 m (4625-6025 feet). It usually occurs on high, elevated, dry terraces situated well above the active channel (discharge ratios >5.0), that are rarely flooded (every 25-100 years). Occasionally it occurs on lower alluvial terraces that are more frequently flooded. Soils are dry with no evidence of aquic conditions within 1 m and are either sandy Inceptisols (Fluventic Ustochrepts), reflecting some soil development on the higher terraces, or less undeveloped sandy or sandy and rocky Entisols (Typic Ustifluvent). This type is characterized by open to moderately closed canopies of mature Populus deltoides ssp. monilifera or Populus deltoides ssp. wislizeni, with a shrubby understory dominated by Ericameria nauseosa and other facultative upland shrub species (one obligate wetland species, Salix exigua, has been recorded for the type). Preliminary data suggest that the herbaceous layer is relatively low in diversity (17 species) and represented by scattered bunchgrasses including Sporobolus cryptandrus, Sporobolus airoides, and Aristida purpurea. Seven out of 30 species recorded for the type are exotic.

Diagnostic Characteristics: No Data Available

Rationale for Nominal Species or Physiognomic Features: No Data Available

Classification Comments: This type, although it lacks significant wetland indicators other than cottonwood, is found in a mosaic with wetter forested and shrub wetland types than occur lower in the floodplain. It is similar to Populus deltoides ssp. monilifera / Artemisia tridentata CT (New Mexico state type) but lacks significant amounts of Artemisia tridentata. Dick-Peddie (1993) refers to a Populus fremontii / Chrysothamnus nauseosus / Mesic Grass - Forb type as part of his Floodplain-Plains Riparian group, which may be equivalent.

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

Physiognomy and Structure: No Data Available

Floristics: This type is characterized by open to moderately closed canopies of mature Populus deltoides ssp. monilifera or Populus deltoides ssp. wislizeni, with a shrubby understory dominated by Ericameria nauseosa (= Chrysothamnus nauseosus) and other facultative upland shrub species (one obligate wetland species, Salix exigua, has been recorded for the type). Preliminary data suggest that the herbaceous layer is relatively low in diversity (17 species) and represented by scattered bunchgrasses including Sporobolus cryptandrus, Sporobolus airoides, and Aristida purpurea. Seven out of 30 species recorded for the type are exotic.

Dynamics:  No Data Available

Environmental Description:  The type is found in wide lowland valleys at elevations ranging from 1410 to 1840 m (4625-6025 feet). It usually occurs on high, elevated, dry terraces situated well above the active channel (discharge ratios >5.0), that are rarely flooded (every 25-100 years). Occasionally it occurs on lower alluvial terraces that are more frequently flooded. Soils are dry with no evidence of aquic conditions within 1 m and are either sandy Inceptisols (Fluventic Ustochrepts), reflecting some soil development on the higher terraces, or less undeveloped sandy or sandy and rocky Entisols (Typic Ustifluvent).

Geographic Range: This association is found in the San Juan River basin in northwestern New Mexico.

Nations: US

States/Provinces:  AZ, NM




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: ? Populus fremontii / Chrysothamnus nauseosus / Mesic Grass - Forb Vegetation Type (Dick-Peddie 1993)
= Plains Cottonwood/Rubber Rabbitbrush CT (Muldavin et al. 2000a)

Concept Author(s): E. Muldavin et al. (2000a)

Author of Description: E. Muldavin et al.

Acknowledgements: No Data Available

Version Date: 07-21-04

  • Dick-Peddie, W. A. 1993. New Mexico vegetation: Past, present, and future. University of New Mexico Press, Albuquerque. 244 pp.
  • Muldavin, E., P. Durkin, M. Bradley, M. Stuever, and P. Mehlhop. 2000a. Handbook of wetland vegetation communities of New Mexico. Volume I: Classification and community descriptions. Final report to the New Mexico Environment Department and the Environmental Protection Agency prepared by the New Mexico Natural Heritage Program, University of New Mexico, Albuquerque.
  • Salas, D., and C. Bolen. 2010b. Vegetation classification and distribution mapping report: Hubbell Trading Post National Historic Site. Natural Resource Technical Report NPS/SCPN/NRTR-2010/301. National Park Service, Fort Collins, CO. 35 pp.
  • Western Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Boulder, CO.