Print Report
G769 North American Boreal Freshwater Aquatic Vegetation Group
Type Concept Sentence: Aquatic freshwater vegetation found in shallow to deep water within the Arctic and Boreal climatic zones of Alaska, Canada and Greenland with dominant species such as Isoetes tenella, Limosella aquatica, Potamogeton spp., Ranunculus ssp., and Sparganium angustifolium.
Common (Translated Scientific) Name: North American Boreal Freshwater Aquatic Vegetation Group
Colloquial Name: North American Boreal Freshwater Aquatic Vegetation
Hierarchy Level: Group
Type Concept: This aquatic floating and rooted vegetation is found in freshwater lakes, ponds and sluggish rivers of the Arctic and Boreal climatic zones of Alaska, Canada and Greenland. It occurs in 10 cm (4 inches) to at least 3 m (10 feet) of freshwater. Dominant species include Hippuris vulgaris, Isoetes tenella, Limosella aquatica, Potamogeton spp., Ranunculus ssp., and Sparganium angustifolium. This group includes nonvascular cryptogram or moss communities. Emergent species are absent or rare. These species are typical of aquatic habitats, and do not appear to be restricted to arctic or boreal climates.
Diagnostic Characteristics: Aquatic bed vegetation.
Rationale for Nominal Species or Physiognomic Features: No Data Available
Classification Comments: No Data Available
Similar NVC Types: No Data Available
note: No Data Available
Physiognomy and Structure: Floating and rooted aquatic vascular and nonvascular plants, submerged and up to 15-20 cm (6-8 inches) above the water surface.
Floristics: Dominant species include Callitriche heterophylla (= Callitriche anceps), Chara spp., Hippuris vulgaris, Isoetes tenella (= Isoetes muricata), Limosella aquatica, Potamogeton alpinus, Potamogeton pusillus ssp. tenuissimus (= Potamogeton berchtoldii), Stuckenia filiformis (= Potamogeton filiformis), Potamogeton gramineus, Stuckenia pectinata (= Potamogeton pectinatus), Potamogeton perfoliatus, Ranunculus gmelinii, Ranunculus hyperboreus, Ranunculus pallasii, Ranunculus trichophyllus, Ruppia cirrhosa (= Ruppia spiralis), Sparganium angustifolium (= Sparganium multipedunculatum), and/or Subularia aquatica. This group includes nonvascular cryptogram or moss communities dominated by bryophytes Sarmentypnum sarmentosum (= Calliergon sarmentosum), Fontinalis antipyretica, and Scapania paludosa and lichen Siphula ceratites. Emergent plants are absent or rare.
Dynamics: These aquatic communities in shallow water are eventually replaced by marshes, wet meadows, or bog meadows.
Environmental Description: This group occurs in permanent and seasonally ephemeral bodies of freshwater such as ponds, lakes, slack waters of large rivers within arctic and boreal climatic zones. Water depths range from 10 cm (4 inches) to at least 3 m (10 feet) deep. Substrates are mineral, organic-rich muck, or rock.
Geographic Range: This group is found in the Boreal and Arctic climatic zones of Alaska, Canada and Greenland.
Nations: CA,GL,US
States/Provinces: AB, AK, BC, LB, MB, NB, NF, NS, NT, NU, ON, QC, SK, YT
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.894266
Confidence Level: Moderate
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.3 Common Mare''s-tail - Mixed Boreal Aquatic Vegetation Macrogroup | M871 | 5.B.2.Na.3 |
| Group | 5.B.2.Na.3.a North American Boreal Freshwater Aquatic Vegetation Group | G769 | 5.B.2.Na.3.a |
| Alliance | A4253 Duckweed species - Mixed Boreal Floating Aquatic Vegetation Alliance | A4253 | 5.B.2.Na.3.a |
| Alliance | A4345 Boreal Mare''s-tail - Pondweed Alliance | A4345 | 5.B.2.Na.3.a |
| Alliance | A4346 Boreal Pondlily Alliance | A4346 | 5.B.2.Na.3.a |
Concept Lineage: G543 merged into G769 (DFL 9-13)
Predecessors: No Data Available
Obsolete Names: No Data Available
Obsolete Parents: No Data Available
Synonomy: No Data Available
- Faber-Langendoen, D., J. Drake, S. Gawler, M. Hall, C. Josse, G. Kittel, S. Menard, C. Nordman, M. Pyne, M. Reid, L. Sneddon, K. Schulz, J. Teague, M. Russo, K. Snow, and P. Comer, editors. 2010-2019a. Divisions, Macrogroups and Groups for the Revised U.S. National Vegetation Classification. NatureServe, Arlington, VA. plus appendices. [in preparation]