Print Report

A3764 Pinus contorta - Picea sitchensis Alaskan Wooded Bog 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 Picea sitchensis 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 south-central and southeastern Alaska.


Common (Translated Scientific) Name: Lodgepole Pine - Sitka Spruce Alaskan Wooded Bog Alliance

Colloquial Name: Alaskan Lodgepole Pine - Sitka Spruce Wooded Bog

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 Picea sitchensis 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 south-central and southeastern Alaska.

Diagnostic Characteristics: Upper canopy is dominated by Pinus contorta var. contorta and/or Picea sitchensis.

Rationale for Nominal Species or Physiognomic Features: No Data Available

Classification Comments: Treed bogs and fens in coastal south-central and southeastern Alaska.

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

Physiognomy and Structure: Open canopy at least 5 m tall but with only 10-20% overstory canopy; the ground covered in mosses.

Floristics: The upper canopy is open and dominated by Pinus contorta and/or Picea sitchensis. Thick sphagnum moss species cover the ground, and a low-shrub layer may or may not be present.

Dynamics:  More information to be added.

Environmental Description:  These are bogs or fens with deep peat substrate that is saturated year-round.

Geographic Range: This alliance occurs in south-central and southeastern Alaska.

Nations: US

States/Provinces:  AK




Confidence Level: Moderate

Confidence Level Comments: No Data Available

Grank: GNR

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): 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.