Print Report

A3765 Pinus contorta / Ledum groenlandicum Treed Bog & Fen Alliance

Type Concept Sentence: This alliance consists of deep peat, organic, treed fens and bogs dominated in the upper canopy by Pinus contorta and/or Thuja plicata on gentle slopes. These are open woodlands with trees that are at least 5 m tall, but the canopy layer can be very open (10-20%). Thick sphagnum moss species cover the ground, and a low-shrub layer may or may not be present. This alliance occurs in southern British Columbia coastal areas extending into Washington.

Common (Translated Scientific) Name: Lodgepole Pine / Bog Labrador-tea Treed Bog & Fen Alliance

Colloquial Name: Lodgepole Pine / Bog Labrador-tea Treed Bog & Fen

Hierarchy Level:  Alliance

Type Concept: This alliance consists of deep peat, organic, treed fens and bogs dominated in the upper canopy by Pinus contorta and/or Thuja plicata on gentle slopes. These are very open woodlands (10-20% cover) with trees that are at least 5 m tall. Thick sphagnum moss species cover the ground, and a low-shrub layer may or may not be present. This alliance occurs in southern British Columbia coastal areas extending into Washington.

Diagnostic Characteristics: Upper canopy dominated by Pinus contorta var. contorta.

Rationale for Nominal Species or Physiognomic Features: No Data Available

Classification Comments: Coastal treed bogs and fens south of Alaska.

Similar NVC Types: No Data Available
note: No Data Available
Physiognomy and Structure: Open treed areas 5 m tall with a ground cover of mosses.

Floristics: Pinus contorta and/or Thuja plicata are the dominant tree canopy, although the tree canopy is fairly open with 10-20% cover. Thick sphagnum moss species cover the ground, and a low-shrub layer may or may not be present.

Dynamics:  No Data Available
Environmental Description:  This alliance includes bogs and fens with deep peat substrates that are saturated year-round.
Geographic Range: This alliance occurs in southern British Columbia coastal areas extending into Washington.

Nations: CA,US

States/Provinces:  BC, WA


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.c Beach Pine / Bog Labrador-tea / Peatmoss species Wooded Bog & Poor Fen Group G610 2.C.2.Na.3.c
Alliance A3765 Lodgepole Pine / Bog Labrador-tea Treed Bog & Fen Alliance A3765 2.C.2.Na.3.c
Association CEGL001691 Beach Pine - Western Red-cedar / Sweetgale / Peatmoss species Treed Fen CEGL001691 2.C.2.Na.3.c
Association CEGL003337 Beach Pine / Bog Labrador-tea / Peatmoss species Treed Bog CEGL003337 2.C.2.Na.3.c
Association CEGL003360 Western White Pine / Bog Labrador-tea / Peatmoss species Treed Bog CEGL003360 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: No Data Available
Concept Author(s): G. Kittel, in Faber-Langendoen et al. (2013)

Author of Description: G. Kittel

Acknowledgements: No Data Available

Version Date: 12-18-14
  • Faber-Langendoen, D., J. Drake, M. Hall, G. Kittel, S. Menard, C. Nordman, M. Pyne, M. Reid, M. Russo, K. Schulz, L. Sneddon, K. Snow, and J. Teague. 2013-2019b. Screening alliances for induction into the U.S. National Vegetation Classification: Part 1 - Alliance concept review. NatureServe, Arlington, VA.