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	CEGL002284 Vallisneria americana Aquatic Vegetation
					Type Concept Sentence: No Data Available
				
			
								Common (Translated Scientific) Name: American Eel-grass Aquatic Vegetation
							
							
								Colloquial Name: Eel-grass Submerged Aquatic Wetland
							
							
								Hierarchy Level:  Association
							
							
								Type Concept: This aquatic wetland or open marsh type is reported from the midwestern United States. Stands may be expected on sandy soil bottoms in shallow quiet waters, including lakes, streams, and ponds. Some sites may be as much as 7 m deep. The vegetation is dominated by Vallisneria americana, and little is known about possible associates.
							
							
								Diagnostic Characteristics: No Data Available
							
							
								Rationale for Nominal Species or Physiognomic Features: No Data Available
							
							
								Classification Comments: Type is a dominance-based submerged aquatic type that was developed by the Iowa Natural Heritage Program (J. Pearson pers. comm. 1997). Little information is available on associated species or its rangewide distribution as a dominant. The species has a very broad range, extending from Nova Scotia to Minnesota and South Dakota south to Texas and east to Florida.
							
							
								Similar NVC Types: No Data Available
							
							
								note: No Data Available
							
							
						
								Physiognomy and Structure: No Data Available
							
							
								Floristics: The vegetation is dominated by Vallisneria americana. Little is known about possible associates.
							
							
								Dynamics:  No Data Available
							
						
								Environmental Description:  Stands may be expected on sandy soil bottoms in shallow quiet waters, including lakes, streams, and ponds. Some sites where Vallisneria americana persists may be as much as 7 m deep (Voss 1972).
							
						
								Geographic Range: This aquatic wetland or open marsh type is reported from the midwestern United States.
							
							
								Nations: CA,US
							
							
								States/Provinces:  IA, ON
							
							
								Plot Analysis Summary:  
								http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.686937
							
						
								Confidence Level: Low - Poorly Documented
							
							
								Confidence Level Comments: No Data Available
							
						
								Grank: GNR
							
							
								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 | A4068 American Eel-grass Aquatic Vegetation Alliance | A4068 | 5.B.2.Na.1.a | 
| Association | CEGL002284 American Eel-grass Aquatic Vegetation | CEGL002284 | 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: = Vallisneria americana Herbaceous Vegetation (Faber-Langendoen 2001)
							
						- 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.).
- INAI [Iowa Natural Areas Inventory]. 2017. Vegetation classification of Iowa. Iowa Natural Areas Inventory, Iowa Department of Natural Resources, Des Moines.
- Lee, H., W. Bakowsky, J. Riley, J. Bowles, M. Puddister, P. Uhlig, and S. McMurray. 1998. Ecological land classification for southern Ontario: First approximation and its application. Ontario Ministry of Natural Resources, Southcentral Science Section, Science Development and Transfer Branch. SCSS Field Guide FG-02.
- Midwestern Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Minneapolis, MN.
- ONHIC [Ontario Natural Heritage Information Centre]. 2018. Unpublished data. Ontario Natural Heritage Information Centre, Ministry of Natural Resources, Ontario, Canada.
- Voss, E. G. 1972. Michigan flora: A guide to the identification and occurrence of the native and naturalized seed-plants of the state. Part I. Gymnosperms and Monocots. Cranbrook Institute of Science. 488 pp.