Login | Datasets | Logout
 

View Community Concepts - Detail

Thuja occidentalis - Abies balsamea / Ledum groenlandicum / Carex trisperma Woodland | Eastern Ecology Working Group of...
  click to update datacart
Name: Thuja occidentalis - Abies balsamea / Ledum groenlandicum / Carex trisperma Woodland
Reference: Eastern Ecology Working Group of...
Description: These are northern white-cedar bog woodlands of basin peatlands in the northern Appalachian Mountains. They occur on shallow to deep peat in depressional wetlands in glacial till. The open canopy, usually under 60% closure, allows for development of fairly extensive dwarf-shrub and/or herbaceous layers. Tall shrubs are generally sparse, although they may be locally abundant. The bryoid layer is continuous. The partial canopy is dominated by <i>Thuja occidentalis</i>, in association with <i>Picea mariana, Larix laricina, Abies balsamea</i>, and <i>Acer rubrum</i>. The subcanopy contains a similar species array. The tall-shrub layer is characterized by <i>Alnus incana, Ilex verticillata</i>, and <i>Viburnum nudum</i>. Dwarf-shrubs typically include <i>Vaccinium angustifolium, Kalmia angustifolia</i>, and <i>Gaylussacia baccata</i>. <i>Morella pensylvanica (= Myrica pensylvanica)</i> is an associate at some coastal sites. The herbaceous layer includes <i>Maianthemum trifolium, Carex trisperma, Carex stricta, Calamagrostis canadensis, Osmunda cinnamomea, Coptis trifolia, Onoclea sensibilis</i>, and <i>Osmunda regalis</i>. The bryophyte layer is well-developed and characterized by <i>Sphagnum magellanicum, Sphagnum girgensohnii, Sphagnum papillosum, Sphagnum wulfianum, Sphagnum capillifolium, Sphagnum recurvum, Sphagnum compactum, Sphagnum flavicomans</i>, and <i>Pleurozium schreberi</i>. This association differs from northern white-cedar swamps, e.g., ~<i>Thuja occidentalis / Sphagnum (girgensohnii, warnstorfii)</i> Forest (CEGL006007)$$, in its more open canopy and (typically) association with open peatlands; it also usually occurs on deeper peats than do the closed-canopy northern white-cedar swamps. These woodlands can grade into open fen vegetation with widely scattered <i>Thuja</i>. 
Accession Code: VB.CC.31091.CEGL006507
Plot-observations of this Community Concept: 0
      Party Perspective according to: NatureServe (organization)
Perspective from: 17-Nov-2014 to: 01-May-2019
     
  • status: accepted
  • This Community's Level: association
  • This Community's Children: [none]
Names:   UID: ELEMENT_GLOBAL.2.688278 NatureServe ExplorerNatureServe Explorer logo
  Common: Northern White-cedar Wooded Fen
  Translated: Northern White-cedar - Balsam Fir / Bog Labrador-tea / Three-seeded Sedge Woodland
  Scientific: Thuja occidentalis - Abies balsamea / Ledum groenlandicum / Carex trisperma Woodland
  Code: CEGL006507