Print Report
CEGL003339 Tsuga heterophylla - (Thuja plicata) / Ledum groenlandicum / Sphagnum spp. Treed Bog
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Western Hemlock - (Western Red-cedar) / Bog Labrador-tea / Peatmoss species Treed Bog
Colloquial Name: No Data Available
Hierarchy Level: Association
Type Concept: This is a common community type found throughout the northern Puget Trough lowlands of Washington. It can occur on saturated quaking bog mats or on relatively dry portions of bogs. Substrates are a mixture of sphagnum, fibrous, heath and woody peat. The vegetation is characterized by the abundance of Tsuga heterophylla. Trees form an open overstory and generally are widely and irregularly spaced. The trees range from being highly stunted to moderately tall.
Diagnostic Characteristics: No Data Available
Rationale for Nominal Species or Physiognomic Features: No Data Available
Classification Comments: Both the stunted and tall tree forms of this community type occur on a bog studied by Fitzgerald (1966, 1977) and Lebednik and del Moral (1976). Osvald (1933) described this community type occurring in pockets within a Pinus contorta / Ledum groenlandicum bog community. The National Wetlands Working Group (1988) noted Tsuga heterophylla treed bogs with Gaultheria shallon and Ledum groenlandicum.
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 is found throughout the northern Puget Trough lowlands of Washington and possibly British Columbia.
Nations: CA?,US
States/Provinces: BC?, WA
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.688620
Confidence Level: Low - Poorly Documented
Confidence Level Comments: No Data Available
Grank: G3
Greasons: No Data Available
| Type | Name | Database Code | Classification Code |
|---|---|---|---|
| Class | 2 Shrub & Herb Vegetation Class | C02 | 2 |
| Subclass | 2.C Shrub & Herb Wetland Subclass | S44 | 2.C |
| Formation | 2.C.2 Temperate to Polar Bog & Fen Formation | F016 | 2.C.2 |
| Division | 2.C.2.Na North American Bog & Fen Division | D029 | 2.C.2.Na |
| Macrogroup | 2.C.2.Na.3 Beach Pine / Bog Labrador-tea / Cusick''s Sedge North Pacific Bog & Fen Macrogroup | M063 | 2.C.2.Na.3 |
| Group | 2.C.2.Na.3.c Beach Pine / Bog Labrador-tea / Peatmoss species Wooded Bog & Poor Fen Group | G610 | 2.C.2.Na.3.c |
| Alliance | A3763 Western Hemlock - Western Red-cedar / Western Labrador-tea Treed Bog Alliance | A3763 | 2.C.2.Na.3.c |
| Association | CEGL003339 Western Hemlock - (Western Red-cedar) / Bog Labrador-tea / Peatmoss species Treed Bog | CEGL003339 | 2.C.2.Na.3.c |
Concept Lineage: No Data Available
Predecessors: No Data Available
Obsolete Names: No Data Available
Obsolete Parents: No Data Available
Synonomy: = Tsuga heterophylla / Ledum groenlandicum / Sphagnum spp. community type (Kunze 1994) [Kunze mentions Thuja plicata at 15-35% when present.]
= Tsuga heterophylla-(Thuja plicata)/Ledum groenlandicum/Sphagnum spp. Woodland (Crawford et al. 2009)
= Tsuga heterophylla-(Thuja plicata)/Ledum groenlandicum/Sphagnum spp. Woodland (Crawford et al. 2009)
- Crawford, R. C., C. B. Chappell, C. C. Thompson, and F. J. Rocchio. 2009. Vegetation classification of Mount Rainier, North Cascades, and Olympic national parks. Plant association descriptions and identification keys: Appendices A-G. Natural Resource Technical Report NPS/NCCN/NRTR--2009/D-586. National Park Service, Fort Collins, CO. 586 pp.
- Fitzgerald, B. J. 1966. The microenvironment in a Pacific Northwest bog and its implications for establishment of conifer seedlings. Master of Science thesis, University of Washington, Seattle. 164 pp.
- Fitzgerald, B. J. 1977. Kings Lake Bog: A description of its vegetation and microenvironments. University of Washington Arboretum Bulletin 40(3):14-22.
- 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.
- Lebednik, G. K., and R. del Moral. 1976. Vegetation surrounding Kings Lake Bog, Washington. Madrono 23:386-400.
- National Wetlands Working Group. 1988. Wetlands of Canada. Ecological Land Classification Series, No. 24. Sustainable Development Branch, Environment Canada, Ottawa, Ontario, and Polyscience Publications Inc., Montreal, Quebec. 452 pp.
- Osvald, H. 1933. Vegetation of the Pacific coast bogs of North America. Acta Phytogeographica Suecica 5:1-33.
- 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.