Print Report

CEGL002754 Pseudotsuga menziesii / Acer negundo Riparian Woodland

Type Concept Sentence: No Data Available


Common (Translated Scientific) Name: Douglas-fir / Box-elder Riparian Woodland

Colloquial Name: No Data Available

Hierarchy Level:  Association

Type Concept: This mixed-canopy woodland association has been documented from cold, narrow, high-gradient tributary canyons in Dinosaur National Monument and Mesa Verde National Park in western Colorado and northeastern Utah. Elevations range from 1600 to 2344 m (5250-7740 feet). Sites are rocky and subject to periodic flash flooding. The canopy consists of Pseudotsuga menziesii with a subcanopy of Acer negundo. Other tree species present include Populus angustifolia and Juniperus scopulorum. The shrub layer is variable but may include Amelanchier utahensis, Prunus virginiana, Rosa woodsii, Rhus trilobata, and Symphoricarpos oreophilus. Herbaceous species have low to moderate cover.

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: This mixed-canopy woodland association consists of Pseudotsuga menziesii with a subcanopy of Acer negundo. Other tree species present include Populus angustifolia and Juniperus scopulorum. The mixed shrub layer is variable but may include Amelanchier utahensis, Prunus virginiana, Rhus trilobata, Ribes aureum, Rosa woodsii, and Symphoricarpos oreophilus. Herbaceous species have low to moderate cover. Common species include Carex occidentalis, Thalictrum fendleri, and other mesic species.

Dynamics:  No Data Available

Environmental Description:  This mixed-canopy woodland association has been documented from cold, narrow, high-gradient tributary canyons in Dinosaur National Monument and Mesa Verde National Park in western Colorado and northeastern Utah. Elevations range from 1600 to 2344 m (5250-7740 feet). Sites are rocky and subject to periodic flash flooding. Substrates are coarse-textured soils derived from alluvium.

Geographic Range: This association has been documented from Mesa Verde National Park and Dinosaur National Monument in western Colorado and in northeastern Utah.

Nations: US

States/Provinces:  CO, UT




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: = Pseudotsuga menziesii / Acer negundo Woodland (Coles et al. 2008a)

Concept Author(s): Coles et al. (2008a)

Author of Description: K.A. Schulz

Acknowledgements: No Data Available

Version Date: 02-07-06

  • Coles, J., D. Cogan, D. Salas, A. Wight, G. Wakefield, J. Von Loh, and A. Evenden. 2008a. Vegetation classification and mapping project report, Dinosaur National Monument. Natural Resource Technical Report NPS/NCPN/NRTR-2008/112. National Park Service, Fort Collins, CO. 814 pp.
  • Thomas, K. A., M. L. McTeague, L. Ogden, M. L. Floyd, K. Schulz, B. Friesen, T. Fancher, R. Waltermire, and A. Cully. 2009b. Vegetation classification and distribution mapping report: Mesa Verde National Park. Natural Resource Report NPS/SCPN/NRR--2009/112. National Park Service, Fort Collins, CO. 352 pp.
  • Western Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Boulder, CO.