Print Report

CEGL004024 Hudsonia tomentosa Dune Dwarf-shrubland

Type Concept Sentence: No Data Available


Common (Translated Scientific) Name: Woolly Beach-heather Dune Dwarf-shrubland

Colloquial Name: Great Lakes Beach-heather Dune Dwarf-shrubland

Hierarchy Level:  Association

Type Concept: This dwarf-shrubland is found in the Great Lakes region of the United States. Stands occur on gently to moderately sloping dunes (dune-swale complex) and sandplains with rapidly drained sand soil. This unique community likely occurs because of the protection by the dunes from north winds and the slightly elevated location on low to midslopes. The slight slope and protection from the wind limit erosion and allow a stable surface for vegetation (versus the shifting sands of the higher dunes). This community is dominated by Hudsonia tomentosa, which can often occur in monotypic stands. A very sparse taller shrub layer with species such as Pinus banksiana, Populus balsamifera, and Salix interior may be present. The sparse herbaceous layer includes Ammophila breviligulata, Deschampsia flexuosa, and Maianthemum stellatum.

Diagnostic Characteristics: No Data Available

Rationale for Nominal Species or Physiognomic Features: No Data Available

Classification Comments: This association is temporarily placed in an alliance found along the North Atlantic Coastal Plain. It may need to be moved to another alliance based on revisions to the NVC such that it occurs within a Great Lakes dunal group.

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

Physiognomy and Structure: No Data Available

Floristics: This community is dominated by a sparse to moderately dense (25-80% cover), often monotypic, dwarf-shrub layer of Hudsonia tomentosa. There may also be a very sparse tall-shrub layer and sparse cover of short shrubs. When present, these include Pinus banksiana, Populus balsamifera, and Salix interior. The sparse herbaceous layer includes Ammophila breviligulata, Deschampsia flexuosa, and Maianthemum stellatum. In addition, this community supports Michigan state-vulnerable Cirsium pitcheri and Tanacetum bipinnatum ssp. huronense. Nonvascular species (mosses and lichens), including Cladonia sp., and Cladonia rangiferina (= Cladina rangiferina), cover up to 50% of the ground surface.

Dynamics:  Common disturbances are foot trails (impacting the cryptobiotic crust on the soil), Pinus banksiana and Ammophila breviligulata encroachment, and fire suppression.

Environmental Description:  This community consists of sandy or dunal areas dominated by Hudsonia tomentosa. It is largely confined to the low and midslope areas of Great Lakes dunes. Stands often contain a cryptobiotic crust on the soil.

Geographic Range: This community is found along dunes and sandplains throughout the northern Great Lakes.

Nations: US

States/Provinces:  MI, WI




Confidence Level: Low

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): S.E. Menard

Author of Description: S.E. Menard

Acknowledgements: No Data Available

Version Date: 07-28-09

  • Hop, K., S. Menard, J. Drake, S. Lubinski, and J. Dieck. 2010a. National Park Service Vegetation Inventory Program: Apostle Islands National Lakeshore, Wisconsin. Natural Resource Report NPS/GLKN/NRR-2010/199. National Park Service, Fort Collins, CO. 310 pp.
  • Hop, K., S. Menard, J. Drake, S. Lubinski, and J. Dieck. 2010c. National Park Service Vegetation Inventory Program: Pictured Rocks National Lakeshore, Michigan. Natural Resource Report NPS/GLKN/NRR-2010/201. National Park Service, Fort Collins, Colorado. 358 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]