Print Report

CEGL000936 Acer negundo / Betula occidentalis Riparian Woodland

Type Concept Sentence: No Data Available


Common (Translated Scientific) Name: Box-elder / Water Birch Riparian Woodland

Colloquial Name: No Data Available

Hierarchy Level:  Association

Type Concept: In Colorado these riparian woodlands grow in narrow, sandstone box canyons of western Colorado. Stands are dominated by a medium-tall (2.5-5.5 m) broad-leaved, deciduous tree canopy. This woodland appears to be a very unusual combination, and is considered a rare plant association. Acer negundo dominates the overstory with 40-70% cover. The shrub layer is dominated by 25-80% cover of Betula occidentalis. Other shrub species include 0-30% cover of Salix exigua and 0-10% cover each of Forestiera pubescens and Clematis ligusticifolia. Herbaceous undergrowth is sparse. Information on stands that occur outside Colorado will be added later.

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 has been documented from the eastern Colorado Plateau (Kittel and Lederer 1993) to the Wasatch front in Utah (Padgett pers. comm. 1995).

Nations: US

States/Provinces:  CO, UT




Confidence Level: Low

Confidence Level Comments: No Data Available

Grank: G1G2

Greasons: No Data Available


Concept Lineage: No Data Available

Predecessors: No Data Available

Obsolete Names: No Data Available

Obsolete Parents: No Data Available

Synonomy: = Acer negundo / Betula occidentalis Woodland (Carsey et al. 2003a)

Concept Author(s): D. Sarr

Author of Description: D. Sarr

Acknowledgements: No Data Available

Version Date: 11-26-97

  • 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 Unpublished report.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.
  • CNHP [Colorado Natural Heritage Program]. 2006-2017. Tracked natural plant communities. Colorado Natural Heritage Program, Colorado State University, Fort Collins. [https://cnhp.colostate.edu/ourdata/trackinglist/plant_communities/]
  • Carsey, K., G. Kittel, K. Decker, D. J. Cooper, and D. Culver. 2003a. Field guide to the wetland and riparian plant associations of Colorado. Colorado Natural Heritage Program, Fort Collins, CO.
  • Kittel, G. M., and N. D. Lederer. 1993. A preliminary classification of the riparian vegetation of the Yampa and San Miguel/Dolores river basins. Unpublished report prepared for Colorado Department of Health and the Environmental Protection Agency by The Nature Conservancy, Colorado Field Office, Boulder.
  • Kittel, G., E. Van Wie, M. Damm, R. Rondeau, S. Kettler, and J. Sanderson. 1999a. A classification of the riparian plant associations of the Rio Grande and Closed Basin watersheds, Colorado. Unpublished report prepared by the Colorado Natural Heritage Program, Colorado State University, Fort Collins.
  • Padgett, W. G., A. P. Youngblood, and A. H. Winward. 1989. Riparian community type classification of Utah and southeastern Idaho. Research Paper R4-ECOL-89-0. USDA Forest Service, Intermountain Forest and Range Experiment Station, Ogden, UT.
  • Western Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Boulder, CO.