Print Report

CEGL000635 Alnus rhombifolia / Prunus virginiana Riparian Forest

Type Concept Sentence: No Data Available


Common (Translated Scientific) Name: White Alder / Chokecherry Riparian Forest

Colloquial Name: No Data Available

Hierarchy Level:  Association

Type Concept: This riparian plant association is reported from data collected in the Snake and Salmon river corridors, within the Blue Mountains ecoregional section. The association occurs on stable stream channels within an elevational band of 595 to 715 m (1950-2350 feet), in the deeply incised terrain of the Salmon River Canyon. Stands of the forest plant association are dominated by broad-leaved, deciduous tree species. Alnus rhombifolia is codominant with Prunus virginiana. Dispersed individuals of Populus balsamifera ssp. trichocarpa are also present. Philadelphus lewisii, Sambucus nigra ssp. cerulea, Crataegus douglasii, Acer glabrum, Ribes oxyacanthoides ssp. irriguum, Lonicera utahensis and Holodiscus discolor are often associates of the broad-leaved deciduous shrub understory. Characteristic forbs include Galium aparine, Claytonia perfoliata, Stellaria media, Dryopteris filix-mas, Claytonia sibirica, Maianthemum stellatum, Fragaria vesca, and Adenocaulon bicolor.

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: Stands of the forest plant association are dominated by broad-leaved, deciduous tree species. Alnus rhombifolia is codominant with Prunus virginiana. Dispersed individuals of Populus balsamifera ssp. trichocarpa are also present. Philadelphus lewisii, Sambucus nigra ssp. cerulea (= Sambucus caerulea), Crataegus douglasii, Acer glabrum, Ribes oxyacanthoides ssp. irriguum (= Ribes irriguum), Lonicera utahensis, and Holodiscus discolor are often associates of the broad-leaved deciduous shrub understory. Characteristic forbs include Galium aparine, Claytonia perfoliata (= Montia perfoliata), Stellaria media, Dryopteris filix-mas, Claytonia sibirica (= Montia sibirica), Maianthemum stellatum, Fragaria vesca, and Adenocaulon bicolor.

Dynamics:  No Data Available

Environmental Description:  The association occurs on stable stream channels within an elevational band of 595 to 715 m (1950-2350 feet), in the deeply incised terrain of the Salmon River Canyon.

Geographic Range: Miller (1976) describes the association as occurring along the Salmon River and its tributaries in Idaho and Oregon.

Nations: US

States/Provinces:  ID, OR




Confidence Level: Low - Poorly Documented

Confidence Level Comments: No Data Available

Grank: G1?

Greasons: No Data Available


Concept Lineage: No Data Available

Predecessors: No Data Available

Obsolete Names: No Data Available

Obsolete Parents: No Data Available

Synonomy: No Data Available

Concept Author(s): S.K. Rust

Author of Description: S.K. Rust

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.
  • IDCDC [Idaho Conservation Data Center]. 2005. Wetland and riparian plant associations in Idaho. Idaho Conservation Data Center, Idaho Department of Fish and Game, Boise. [http://fishandgame.idaho.gov/tech/CDC/ecology/wetland_riparian_assoc.cfm] (accessed 14 June 2005).
  • Kagan, J. S., J. A. Christy, M. P. Murray, and J. A. Titus. 2004. Classification of native vegetation of Oregon. January 2004. Oregon Natural Heritage Information Center, Portland. 52 pp.
  • Miller, T. B. 1976. Ecology of riparian communities dominated by white alder in western Idaho. Unpublished thesis, University of Idaho, Moscow. 154 pp.
  • Western Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Boulder, CO.