Print Report
CEGL002679 Trichophorum cespitosum Pacific Fen
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Tufted Bulrush Pacific Fen
Colloquial Name: No Data Available
Hierarchy Level: Association
Type Concept: Habitat is montane fens, forming wet lawns on flats or gentle to moderate slopes below springs and seeps. Trichophorum cespitosum forms conspicuous tussocks in montane peatlands but is not common in Oregon. The habitat is similar to other montane fens in similar sloping, seepy sites. Trees have scanty cover and are primarily restricted to hummocks or "tree islands" within a matrix of wet lawn, or they are peripheral to the wetland. Species include Pinus monticola, Thuja plicata, Tsuga heterophylla, and Abies amabilis, but all have low constancy and cover. Nine different species are reported from the shrub layer, the primary one being Vaccinium uliginosum, but these also have low constancy and cover. Over 40 species are reported from the herb layer, most of them typical of wet lawns in fens. Trichophorum cespitosum is most abundant with 44% cover and ranging from 20-75%. Triantha glutinosa is present in all plots but with low cover. Other species with significant patches include Hypericum anagalloides, Caltha leptosepala ssp. howellii, Sanguisorba officinalis, Eriophorum gracile, Carex aquatilis var. dives, and Carex utriculata. Trichophorum cespitosum is uncommon in Oregon, and occurrences of this association are limited to the northern part of the Cascade Range.
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: No Data Available
Dynamics: No Data Available
Environmental Description: No Data Available
Geographic Range: This association occurs from Oregon to Alaska (Christy 2004).
Nations: CA?,US
States/Provinces: AK?, BC?, NT?, NU?, OR, WA, YT?
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.685123
Confidence Level: Moderate
Confidence Level Comments: No Data Available
Grank: GNR
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.a Cusick''s Sedge - Water Sedge - Sweetgale Alkaline Fen Group | G285 | 2.C.2.Na.3.a |
| Alliance | A3433 Water Sedge - Livid Sedge - Cusick''s Sedge Alkaline Fen Alliance | A3433 | 2.C.2.Na.3.a |
| Association | CEGL002679 Tufted Bulrush Pacific Fen | CEGL002679 | 2.C.2.Na.3.a |
Concept Lineage: Upgraded to Standard during screening.
Predecessors: No Data Available
Obsolete Names: No Data Available
Obsolete Parents: No Data Available
Synonomy: = Trichophorum caespitosum (McCain and Christy 2005) [9 plots]
= Trichophorum caespitosum Association (Christy 2004)
= Trichophorum caespitosum Association (Christy 2004)
- Christy, J. A. 2004. Native freshwater wetland plant associations of northwestern Oregon. Oregon Natural Heritage Information Center, Oregon State University, Portland, OR.
- McCain, C., and J. A. Christy. 2005. Field guide to riparian plant communities in northwestern Oregon. Technical Paper R6-NR-ECOL-TP-01-05. USDA Forest Service, Pacific Northwest Region, Portland. 357 pp.
- 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.
- Viereck, L. A., C. T. Dyrness, A. R. Batten, and K. J. Wenzlick. 1992. The Alaska vegetation classification. General Technical Report PNW-GTR286. USDA Forest Service, Pacific Northwest Research Station, Portland, OR. 278 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.