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CEGL003280 Picea sitchensis - Populus balsamifera ssp. trichocarpa / Orthilia secunda Riparian Woodland

Type Concept Sentence: No Data Available


Common (Translated Scientific) Name: Sitka Spruce - Black Cottonwood / Sidebells Wintergreen Riparian Woodland

Colloquial Name: No Data Available

Hierarchy Level:  Association

Type Concept: This association is a common type found on low-elevation floodplains, outwash plains and recently deglaciated moraines of southeastern and south-central Alaska. It represents the most frequently disturbed portion of the riparian zone on well-drained undifferentiated alluvium. Picea sitchensis and Populus balsamifera ssp. trichocarpa dominate the overstory. Tree height ranges up to 20 m (65 feet) and spruce regeneration is common. Stands are usually 40-100 years old. A variety of shrubs, such as Oplopanax horridus and Salix spp., occur. Common forbs include Pyrola spp., Lupinus nootkatensis, and Rubus pedatus.

Diagnostic Characteristics: No Data Available

Rationale for Nominal Species or Physiognomic Features: No Data Available

Classification Comments: The only published account for this type is from the Yakutat Foreland (Shephard 1995). The composition and structure of this association are similar to other mixed Picea sitchensis - Populus balsamifera ssp. trichocarpa plant associations of southeastern and south-central Alaska, such as ~Picea sitchensis - Populus balsamifera ssp. trichocarpa / Oplopanax horridus Riparian Forest (CEGL003278)$$.

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

Physiognomy and Structure: No Data Available

Floristics: Picea sitchensis and Populus balsamifera ssp. trichocarpa (= Populus trichocarpa) dominate the overstory. Tree height ranges up to 20 m (65 feet) and spruce regeneration is common. Stands are usually 40-100 years old. A variety of shrubs, such as Oplopanax horridus (= Echinopanax horridus) and Salix spp., occur. Common forbs include Pyrola spp., Lupinus nootkatensis, and Rubus pedatus.

Dynamics:  No Data Available

Environmental Description:  This association is a common type found on low-elevation floodplains, outwash plains and recently deglaciated moraines of southeastern and south-central Alaska. It represents the most frequently disturbed portion of the riparian zone on well-drained undifferentiated alluvium.

Geographic Range: This plant association is restricted to southeastern and south-central Alaska.

Nations: US

States/Provinces:  AK




Confidence Level: Low

Confidence Level Comments: No Data Available

Grank: G3

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): M.E. Shephard (1995)

Author of Description: K. Boggs

Acknowledgements: No Data Available

Version Date: 11-26-97

  • Boggs, K. 1996. Forested plant communities of maritime southcentral and southeast Alaska. Unpublished report of the Alaska Natural Heritage Program, University of Alaska, Anchorage.
  • 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.
  • Shephard, M. E. 1995. Plant community ecology and classification of the Yakutat Foreland, Alaska. R10-TP-56. USDA Forest Service, Alaska Region. 213 pp. plus appendices.
  • Western Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Boulder, CO.