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CEGL005273 Potamogeton gramineus - Potamogeton natans Northern Great Lakes Shore Aquatic Vegetation
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Variableleaf Pondweed - Floating Pondweed Northern Great Lakes Shore Aquatic Vegetation
Colloquial Name: Northern Great Lakes Shore Pondweed Aquatic Vegetation
Hierarchy Level: Association
Type Concept: This submergent marsh type is found along northern Great Lakes shorelines in Lake Huron, Lake Michigan, Lake Superior, and along the St. Mary''s River in the United States and Canada. Stands occur in a variety of shoreline contexts, including clay lakeplains, sand lakeplains, and sandy ground moraines. They typically occur in open water and stream margins within estuarine sites, often within a much larger poor fen. Stands in Lake Huron and Lake Michigan are found in relatively protected coastal embayments. Stands along the St. Mary''s River occur in channel-side wetlands and embayments. The submergent vegetation typically contains Potamogeton gramineus and Potamogeton natans, as well as floating aquatics such as Brasenia schreberi, Bidens beckii, and Nuphar variegata. Chara spp. may be very common in alkaline areas.
Diagnostic Characteristics: No Data Available
Rationale for Nominal Species or Physiognomic Features: No Data Available
Classification Comments: This type typically occurs as part of a ~Great Lakes Coastal Wetlands Complex (CECX005702)$$. See also the Southern Great Lakes Submergent Marsh type, ~Potamogeton zosteriformis - Ceratophyllum demersum - Elodea canadensis Southern Great Lakes Shore Aquatic Vegetation (CEGL005152)$$.
Similar NVC Types: No Data Available
note: No Data Available
Physiognomy and Structure: No Data Available
Floristics: The submergent vegetation typically contains Potamogeton gramineus and Potamogeton natans, as well as floating aquatics such as Brasenia schreberi, Bidens beckii (= Megalodonta beckii), and Nuphar variegata (= Nuphar lutea ssp. variegata). Chara spp. may be very common in alkaline areas (Minc and Albert 1998).
Dynamics: Storms, seiches, and water level cycles contribute to a dynamic vegetation structure and composition. Substrate is mineral soil. Water depth generally exceeds 0.3 m. Stands appear to be correlated with greater site protection from wave action and storms (Minc 1996).
Environmental Description: Stands occur in a variety of shoreline contexts, including clay lakeplains, sand lakeplains, and sandy ground moraines. They typically occur in open water and stream margins within estuarine sites, often within a much larger poor fen. Stands in Lake Huron and Lake Michigan are found in relatively protected coastal embayments. Stands along the St. Mary''s River occur in channel-side wetlands and embayments (Minc and Albert 1998).
Geographic Range: This submergent marsh type is found along northern Great Lakes shorelines in Lake Huron, Lake Michigan, Lake Superior and along the St. Clair River in the United States and Canada.
Nations: CA,US
States/Provinces: MI, MN, ON, WI
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.685628
Confidence Level: Low - Poorly Documented
Confidence Level Comments: No Data Available
Grank: G3?
Greasons: No Data Available
| Type | Name | Database Code | Classification Code |
|---|---|---|---|
| Class | 5 Aquatic Vegetation Class | C05 | 5 |
| Subclass | 5.B Freshwater Aquatic Vegetation Subclass | S13 | 5.B |
| Formation | 5.B.2 Temperate to Polar Freshwater Aquatic Vegetation Formation | F057 | 5.B.2 |
| Division | 5.B.2.Na North American Freshwater Aquatic Vegetation Division | D049 | 5.B.2.Na |
| Macrogroup | 5.B.2.Na.1 Hornwort species - Pond-lily species - Pondweed species Eastern North American Freshwater Aquatic Vegetation Macrogroup | M108 | 5.B.2.Na.1 |
| Group | 5.B.2.Na.1.a American White Water-lily - Sago Pondweed - Pondweed species Freshwater Aquatic Vegetation Group | G114 | 5.B.2.Na.1.a |
| Alliance | A4066 Pondweed species - Hornwort species - Waterweed species Aquatic Vegetation Alliance | A4066 | 5.B.2.Na.1.a |
| Association | CEGL005273 Variableleaf Pondweed - Floating Pondweed Northern Great Lakes Shore Aquatic Vegetation | CEGL005273 | 5.B.2.Na.1.a |
Concept Lineage: No Data Available
Predecessors: No Data Available
Obsolete Names: No Data Available
Obsolete Parents: No Data Available
Synonomy: = Potamogeton gramineus - Potamogeton natans Northern Great Lakes Shore Herbaceous Vegetation (Faber-Langendoen 2001) [Submerged Aquatic Northern Great Lakes Subtype]
- 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.
- Minc, L. D. 1996. Michigan''s Great Lakes coastal wetlands: Definition, variability, and classification. A report in 2 parts submitted to Michigan Natural Features Inventory, Lansing, MI.
- Minc, L. D., and D. A. Albert. 1998. Great Lakes coastal wetlands: Abiotic and floristic characterization. Great Lakes Wetlands 9(3):1-15.
- 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]