Print Report
G436 Potamogeton foliosus - Potamogeton nodosus Freshwater Aquatic Vegetation Group
Type Concept Sentence: This tropical, freshwater aquatic bed group consists entirely of submerged, partially submerged or floating vegetation lacking structural support.
Common (Translated Scientific) Name: Leafy Pondweed - Longleaf Pondweed Freshwater Aquatic Vegetation Group
Colloquial Name: Hawaiian Freshwater Aquatic Vegetation
Hierarchy Level: Group
Type Concept: This tropical, freshwater aquatic bed group consists entirely of submerged, partially submerged or floating vegetation lacking structural support. Many of the dominant species may remain dormant/dry for part of the year and complete their reproductive cycle during the wet part of the year. Potamogeton foliosus and Potamogeton nodosus are characteristic species. This aquatic vegetation group is found in permanently flooded reservoirs, ponds, pools, slow-moving streams, irrigation ditches, canals, and open bodies of water surrounded by freshwater marshes. Mean water depths of these habitats are too great for rooted emergent plants. Habitats may be subject to water level fluctuations greater than 1 m (3 feet) and to regular or intermittent exposure at extreme low tides.
Diagnostic Characteristics: This freshwater aquatic bed group is permanently flooded and characterized by submerged, partially submerged or floating vegetation lacking structural support such as Potamogeton foliosus and Potamogeton nodosus.
Rationale for Nominal Species or Physiognomic Features: No Data Available
Classification Comments: Potamogeton foliosus and Potamogeton nodosus are thought to be indigenous to Hawai`i, but there is some controversy regarding their status. Both species are native to several other continents.
Similar NVC Types: No Data Available
note: No Data Available
Physiognomy and Structure: No Data Available
Floristics: This tropical, freshwater aquatic bed group consists entirely of submerged, partially submerged or floating vegetation lacking structural support. Many of the dominant species may remain dormant/dry for part of the year and complete their reproductive cycle during the wet part of the year. Potamogeton foliosus and Potamogeton nodosus are characteristic species. This aquatic vegetation group is found in permanently flooded reservoirs, ponds, pools, slow-moving streams, irrigation ditches, canals, and open bodies of water surrounded by freshwater marshes. Mean water depths of these habitats are too great for rooted emergent plants. Habitats may be subject to water level fluctuations greater than 1 m (3 feet) and to regular or intermittent exposure at extreme low tides.
Dynamics: Aquatic bed plants serve as important food sources for waterfowl and are bird-dispersed. This group is threatened by exotic and naturalized species, including Ceratophyllum demersum, Eichhornia crassipes, Hydrocotyle verticillata, Lemna perpusilla, Ludwigia palustris, Monochoria vaginalis, Myriophyllum aquaticum, Pistia stratiotes, and Spirodela polyrrhiza.
Environmental Description: This aquatic freshwater vegetation group is found in reservoirs, ponds, pools, slow-moving streams, irrigation ditches, canals, and open bodies of water surrounded by freshwater marshes (Wagner et al. 1999). Mean water depths of these habitats are too great for rooted emergent plants. Habitats may be subject to water level fluctuations greater than 1 m (3 feet) and to regular or intermittent exposure at extreme low tides. Climate: Climate is warm tropical. Soil/substrate/hydrology: This group is permanently flooded.
Geographic Range: This native aquatic bed group has been impacted by invasive species and is uncommon and limited to a few remnant sites within the main Hawaiian Islands.
Nations: US
States/Provinces: HI
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.860825
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.1 Tropical Freshwater Aquatic Vegetation Formation | F056 | 5.B.1 |
| Division | 5.B.1.Ob Polynesian-Eastern Melanesian Freshwater Aquatic Vegetation Division | D084 | 5.B.1.Ob |
| Macrogroup | 5.B.1.Ob.2 Polynesian Freshwater Aquatic Vegetation Macrogroup | M258 | 5.B.1.Ob.2 |
| Group | 5.B.1.Ob.2.a Leafy Pondweed - Longleaf Pondweed Freshwater Aquatic Vegetation Group | G436 | 5.B.1.Ob.2.a |
Concept Lineage: No Data Available
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]
- Gagne, W. C., and L. W. Cuddihy. 1990. Vegetation. Pages 45-114 in: W. L. Wagner, D. R. Herbst, and S. H. Sohmer, editors. Manual of the Flowering Plants of Hawaii. 2 volumes. University of Hawaii Press, Honolulu.
- Mueller-Dombois, D., and F. R. Fosberg. 1998. Vegetation of the tropical Pacific islands. Springer-Verlag, New York. 733 pp.
- Stemmermann, L. 1983. Ecological studies of Hawaiian Metrosideros in a successional context. Pacific Science 37:317-325.
- Wagner, W. L., D. R. Herbst, and S. H. Sohmer. 1999. Manual of the flowering plants of Hawaii. Revised edition. Volumes 1 and 2. University of Hawaii Press and Bishop Museum Press, Honolulu. 1919 pp.