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CEGL005112 Typha spp. - Schoenoplectus tabernaemontani - Mixed Herbs Southern Great Lakes Shore Marsh

Type Concept Sentence: No Data Available


Common (Translated Scientific) Name: Cattail species - Softstem Bulrush - Mixed Herbs Southern Great Lakes Shore Marsh

Colloquial Name: Southern Great Lakes Shore Emergent Marsh

Hierarchy Level:  Association

Type Concept: This deep emergent marsh community typically occurs in the southern Great Lakes region of the United States and Canada, including southern Lake Michigan, Lake St. Clair, Lake Erie, Lake Ontario, and into the St. Lawrence River, and possibly Lake Champlain. Remaining stands in the area are primarily found in lacustrine estuaries, barrier-beach lagoons, or sand-spit swales. In the Great Lakes the estuaries are often formed at the mouths of rivers drowned by the post-glacial rise in lake level, whereas in the St. Lawrence River the estuaries are formed from small streams or rivers that occupy apparent pre-glacial valleys that have been partly filled in by outwash and alluvial deposits to form fairly broad, flat basins. Storms, seiches, and water level cycles create a very dynamic pattern of species composition and structure in the vegetation. Water depth generally exceeds 0.3 m. Typical dominants include the emergents Schoenoplectus tabernaemontani and Typha spp. (Typha angustifolia, Typha x glauca, Typha latifolia). Stands in Lake Erie and Lake Ontario may contain more pure Typha angustifolia stands, or mixes of that species with Calamagrostis canadensis. Thelypteris palustris is a common fern. Impatiens capensis may be common in open parts of the marsh. Floating and rooted aquatics include Ceratophyllum demersum, Lemna minor, Nuphar advena, Nymphaea odorata, Potamogeton gramineus, Sagittaria latifolia, and Spirodela polyrrhiza.

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)$$. It is unclear whether stands in Green Bay area go with this type or with the Northern Great Lakes Emergent Marsh type, ~Schoenoplectus acutus - Schoenoplectus subterminalis - Eleocharis palustris - (Schoenoplectus americanus) Northern Great Lakes Shore Marsh (CEGL005274)$$. In Wisconsin no stands are reported along the southwest shore of Lake Michigan, so perhaps no "southern Great Lakes" type is needed there.

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

Physiognomy and Structure: No Data Available

Floristics: Typical dominants include the emergents Schoenoplectus tabernaemontani (= Scirpus tabernaemontani) and Typha spp. (Typha angustifolia, Typha x glauca, Typha latifolia). Stands in Lake Erie and Lake Ontario may contain more pure Typha angustifolia stands, or mixes of that species with Calamagrostis canadensis. Thelypteris palustris is a common fern. Impatiens capensis may be common in open parts of the marsh. Floating and rooted aquatics include Ceratophyllum demersum, Lemna minor, Nuphar advena (= Nuphar lutea ssp. advena), Nymphaea odorata, Potamogeton gramineus, Sagittaria latifolia, and Spirodela polyrrhiza (Minc and Albert 1998).

Dynamics:  Storms, seiches, and water level cycles create a very dynamic pattern of vegetation (Minc 1996).

Environmental Description:  Remaining stands in the area are primarily found in lacustrine estuaries, barrier-beach lagoons, or sand-spit swales. In the Great Lakes the estuaries are often formed at the mouths of rivers drowned by the post-glacial rise in lake level, whereas in the St. Lawrence River the estuaries are formed from small streams or rivers that occupy apparent pre-glacial valleys that have been partly filled in by outwash and alluvial deposits to form fairly broad, flat basins. Storms, seiches, and water level cycles create a very dynamic pattern of species composition and structure in the vegetation. Water depth generally exceeds 0.3 m.

Geographic Range: This deep emergent marsh community typically occurs in the southern Great Lakes region of the United States and Canada, including southern Lake Michigan, Lake St. Clair, Lake Erie, Lake Ontario, and into the St. Lawrence River, and possibly Lake Champlain.

Nations: CA,US

States/Provinces:  MI, NY, OH, ON, PA, QC, VT, WI




Confidence Level: Low

Confidence Level Comments: No Data Available

Grank: G3G4

Greasons: No Data Available


Concept Lineage: The type 5114 is essentially synonymous with relatively pure cattail stands that fall within this type

Predecessors: No Data Available

Obsolete Names: No Data Available

Obsolete Parents: No Data Available

Synonomy: = Typha spp. - Schoenoplectus tabernaemontani - Mixed Herbs Southern Great Lakes Shore Herbaceous Vegetation (Faber-Langendoen 2001) [Deep Marsh Southern Great Lakes Subtype]

Concept Author(s): D. Faber-Langendoen (2001)

Author of Description: D. Faber-Langendoen

Acknowledgements: No Data Available

Version Date: 11-18-98

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