Print Report

CEGL003420 Myrica gale - Spiraea douglasii / Sphagnum spp. Fen

Type Concept Sentence: No Data Available


Common (Translated Scientific) Name: Sweetgale - Rose Spirea / Peatmoss species Fen

Colloquial Name: No Data Available

Hierarchy Level:  Association

Type Concept: This association is a shrub-dominated peatland (sphagnum bog or poor fen) that occurs around low-elevation lakes and very slowing-moving streams on the northwestern Olympic Peninsula of Washington and Vancouver Island, British Columbia. It is saturated year-round and in some cases is seasonally flooded with minerotrophic water. Soils are sphagnum, fibrous and heath peat. The dense deciduous shrub layer is dominated by Myrica gale and codominated by Spiraea douglasii. The herbaceous layer is characterized by Trientalis europaea ssp. arctica, and is otherwise variable. The moss layer is dominated by Sphagnum spp., usually >40% cover. The combination of dominant Myrica gale and abundant Spiraea douglasii and Sphagnum is diagnostic.

Diagnostic Characteristics: No Data Available

Rationale for Nominal Species or Physiognomic Features: No Data Available

Classification Comments: Described from natural high-quality systems in Washington. British Columbia says they have this, but many places where it occurs are somehow disturbed anthropogenically.

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 type is known only from the northwestern Olympic Peninsula, Washington, and Vancouver Island, British Columbia.

Nations: CA?,US

States/Provinces:  BC?, WA




Confidence Level: Moderate

Confidence Level Comments: No Data Available

Grank: G2?

Greasons: No Data Available


Concept Lineage: No Data Available

Predecessors: No Data Available

Obsolete Names: No Data Available

Obsolete Parents: No Data Available

Synonomy: = Myrica gale - Spiraea douglasii / Sphagnum spp. Community Type (Kunze 1994)

Concept Author(s): C.B. Chappell

Author of Description: C.B. Chappell

Acknowledgements: No Data Available

Version Date: 10-17-02

  • Kunze, L. M. 1994. Preliminary classification of native, low elevation, freshwater wetland vegetation in western Washington. Washington State Department of Natural Resources, Natural Heritage Program. 120 pp.
  • WNHP [Washington Natural Heritage Program]. 2018. Unpublished data files. Washington Natural Heritage Program, Department of Natural Resources, Olympia, WA.
  • Western Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Boulder, CO.