Print Report

CEGL005091 Chamaedaphne calyculata / Carex oligosperma / Sphagnum spp. Acidic Peatland

Type Concept Sentence: No Data Available


Common (Translated Scientific) Name: Leatherleaf / Few-seed Sedge / Peatmoss species Acidic Peatland

Colloquial Name: Great Lakes Leatherleaf Intermittent Wetland

Hierarchy Level:  Association

Type Concept: This intermittent wetland shrub community is found near the western and central Great Lakes along lakeshores or in depressions. It usually occurs on sandy glacial lakeplains and outwash plains. Soils range from loamy sand and peaty sand to peaty muck and are strongly acidic to very strongly acidic. The water level fluctuates seasonally and from year to year. This wetland is dominated by herbs, or by herbs and shrubs. Chamaedaphne calyculata is a short shrub which is present in this community. Herbaceous species present include Carex oligosperma and Juncus spp., and in some places, Calamagrostis canadensis, Calamagrostis stricta, Eleocharis olivacea, Eleocharis robbinsii, and Phalaris arundinacea. The nonvascular layer contains some Sphagnum spp.

Diagnostic Characteristics: No Data Available

Rationale for Nominal Species or Physiognomic Features: No Data Available

Classification Comments: This type is taken from the Michigan state classification''s Intermittent Wetland, Boggy Seepage Wetland (Chapman et al. 1989). There it occurs on poorly drained portions of outwash, seepage with water table fluctuations. Rangewide characteristics of this type are not clear, but similar stands in "burned out" bogs in Wisconsin have been observed. It is possible that this type may be equivalent to the Leatherleaf Poor Fen type, ~Chamaedaphne calyculata / Carex oligosperma / Sphagnum spp. Poor Fen (CEGL005277)$$.

A similar kind of vegetation dominated by Carex oligosperma and Carex utriculata may exist in the central sandplains of Minnesota and Wisconsin; other characteristic species include Spiraea tomentosa, Lysimachia terrestris, Sphagnum spp., and Hypericum kalmianum. These stands may correspond to what Michigan calls "Great Lakes Intermittent Wetland," which is an acidic sedge- and herb-dominated wet meadow [see this type (CEGL005091). They usually have low ericad cover (Chamaedaphne calyculata, Vaccinium oxycoccos) (E. Epstein pers. comm. 1999). They do resemble poor fens, in some respects. See ~Carex lasiocarpa - Carex oligosperma / Sphagnum spp. Acidic Peatland (CEGL002265)$$ but are more like "acidic wet meadow".

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

Physiognomy and Structure: No Data Available

Floristics: This wetland is dominated by herbs or by herbs and shrubs. Chamaedaphne calyculata is a short shrub which is present in this community. Herbaceous species present include Carex oligosperma and Juncus spp., and in some places, Calamagrostis canadensis, Calamagrostis stricta, Eleocharis olivacea, Eleocharis robbinsii, and Phalaris arundinacea. The nonvascular layer contains some Sphagnum spp. (Chapman et al. 1989). Often species with Coastal Plain affinities are present in this community, especially south of the tension zone. Species of very acidic bogs and slightly acidic marshes are present.

Dynamics:  Sites may occur where bogs have been "burned out" (Chapman et al. 1989).

Environmental Description:  This community is located along lakeshores or in depressions. It occurs on sandy glacial lakeplains and outwash plains. Soils range from loamy sand and peaty sand to peaty muck and are strongly acidic to very strongly acidic. The water level fluctuates seasonally and from year to year.

Geographic Range: This community is found in Michigan, Wisconsin, Ontario, and New York in the Great Lakes basin.

Nations: CA,US

States/Provinces:  MI, ON?, QC?




Confidence Level: Moderate

Confidence Level Comments: No Data Available

Grank: G3Q

Greasons: No Data Available


Concept Lineage: No Data Available

Predecessors: No Data Available

Obsolete Names: No Data Available

Obsolete Parents: No Data Available

Synonomy: = Chamaedaphne calyculata / Carex oligosperma / Sphagnum spp. Dwarf-shrubland (Faber-Langendoen 2001) [Boggy Intermittent Wetland Great Lakes Subtype]
= Intermittent Wetland, Boggy Seepage Wetland (Chapman et al. 1989)

Concept Author(s): Chapman et al. (1989)

Author of Description: J. Drake and D. Faber-Langendoen

Acknowledgements: No Data Available

Version Date: 03-03-94

  • CDPNQ [Centre de données sur le patrimoine naturel du Québec]. No date. Unpublished data. Centre de données sur le patrimoine naturel du Québec, Québec.
  • Chapman, K. A., D. A. Albert, and G. A. Reese. 1989. Draft descriptions of Michigan''s natural community types. Michigan Department of Natural Resources, Lansing, MI. 35 pp.
  • Epstein, Eric. Personal communication. Community Ecologist, Wisconsin Natural Heritage Program, Madison, WI.
  • Faber-Langendoen, D., editor. 2001. Plant communities of the Midwest: Classification in an ecological context. Association for Biodiversity Information, Arlington, VA. 61 pp. plus appendix (705 pp.).
  • Kost, M. A., D. A. Albert, J. G. Cohen, B. S. Slaughter, R. K. Schillo, C. R. Weber, and K. A. Chapman. 2007. Natural communities of Michigan: Classification and description. Report No. 2007-21, Michigan Natural Features Inventory, Lansing. 314 pp. [http://web4.msue.msu.edu/mnfi/reports/2007-21_Natural_Communites_of_Michigan_Classification_and_Description.pdf]
  • Midwestern Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Minneapolis, MN.
  • WDNR [Wisconsin Department of Natural Resources]. 2015. The ecological landscapes of Wisconsin: An assessment of ecological resources and a guide to planning sustainable management. PUB-SS-1131 2015. Wisconsin Department of Natural Resources, Madison. [http://dnr.wi.gov/topic/landscapes/Book.html]