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CEGL003307 Ranunculus aquatilis Aquatic Vegetation
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Whitewater Crowfoot Aquatic Vegetation
Colloquial Name: No Data Available
Hierarchy Level: Association
Type Concept: This herbaceous vegetation occurs from California to British Columbia at 152 to 855 m (500-2800 feet) elevation. Habitat is shallow pools or ponds in open or wooded situations. Soils are seasonally to perennially flooded organic or loam. Ranunculus aquatilis forms beds of rooted aquatic vegetation, usually in nearly monotypic stands. It occurs in both hardwood forests of Fraxinus latifolia, Alnus rubra, and Acer macrophyllum, as well as in forests of Pseudotsuga menziesii and Thuja plicata. No woody vegetation is recorded from these plots. Twelve species are reported from the herb layer, Ranunculus aquatilis being the most abundant with an average cover of 88% and ranging from 75-98%. Alopecurus aequalis and Veronica scutellata occur in slightly over half sampled plots but at very low cover. An unidentified Callitriche and Eleocharis acicularis form some significant patches, but the rest of the species occur only in very small amounts. Smaller pools containing this association often dry up in summer, and the plants die and disappear when desiccated. These seasonal pools are favored egg-laying sites for amphibians.
Diagnostic Characteristics: No Data Available
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: No Data Available
Floristics: Ranunculus aquatilis forms beds of rooted aquatic vegetation, usually in nearly monotypic stands. It occurs in both hardwood forests of Fraxinus latifolia, Alnus rubra, and Acer macrophyllum, as well as in forests of Pseudotsuga menziesii and Thuja plicata. No woody vegetation is recorded from these plots. Twelve species are reported from the herb layer, Ranunculus aquatilis being the most abundant with an average cover of 88% and ranging from 75-98%. Alopecurus aequalis and Veronica scutellata occur in slightly over half sampled plots but at very low cover. An unidentified Callitriche and Eleocharis acicularis form some significant patches, but the rest of the species occur only in very small amounts.
Dynamics: Smaller pools containing this association often dry up in summer, and the plants die and disappear when desiccated. These seasonal pools are favored egg-laying sites for amphibians.
Environmental Description: This herbaceous vegetation occurs at 152 to 855 m (500-2800 feet) elevation. Habitat is shallow pools or ponds in open or wooded situations. Soils are seasonally to perennially flooded organic or loam.
Geographic Range: This association occurs from California to British Columbia (Christy 2004).
Nations: CA,US
States/Provinces: BC, CA?, OR, WA
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.687676
Confidence Level: Low
Confidence Level Comments: No Data Available
Grank: G5
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.2 Rocky Mountain Pond-lily - Pacific Mosquito Fern - Western Waterweed Western North American Freshwater Aquatic Vegetation Macrogroup | M109 | 5.B.2.Na.2 |
| Group | 5.B.2.Na.2.a Pond-lily species - Pondweed species - Duckweed species Freshwater Aquatic Vegetation Group | G544 | 5.B.2.Na.2.a |
| Alliance | A3920 Whitewater Crowfoot - Vernal Water-starwort - Greater Water-starwort Aquatic Vegetation Alliance | A3920 | 5.B.2.Na.2.a |
| Association | CEGL003307 Whitewater Crowfoot Aquatic Vegetation | CEGL003307 | 5.B.2.Na.2.a |
Concept Lineage: Upgraded to Standard during screening.
Predecessors: No Data Available
Obsolete Names: No Data Available
Obsolete Parents: No Data Available
Synonomy: = Ranunculus aquatilis (McCain and Christy 2005) [3 plots]
= Ranunculus aquatilis Association (Christy 2004)
= Ranunculus aquatilis Association (Christy 2004)
- Christy, J. A. 2004. Native freshwater wetland plant associations of northwestern Oregon. Oregon Natural Heritage Information Center, Oregon State University, Portland, OR.
- Kagan, J. S., J. A. Christy, M. P. Murray, and J. A. Titus. 2004. Classification of native vegetation of Oregon. January 2004. Oregon Natural Heritage Information Center, Portland. 52 pp.
- McCain, C., and J. A. Christy. 2005. Field guide to riparian plant communities in northwestern Oregon. Technical Paper R6-NR-ECOL-TP-01-05. USDA Forest Service, Pacific Northwest Region, Portland. 357 pp.
- Rodwell, J. S., editor. 1995a. British plant communities. Volume 4. Aquatic communities, swamps and tall-herb fens. Cambridge University Press, Cambridge. 283 pp.
- Titus, J. H., J. A. Christy, D. Vander Schaaf, J. S. Kagan, and E. R. Alverson. 1996. Native wetland, riparian, and upland plant communities and their biota in the Willamette Valley, Oregon. Report to the Environmental Protection Agency, Region X, Seattle, WA. Willamette Basin Geographic Initiative. Oregon Natural Heritage Program, The Nature Conservancy, Portland, OR.
- Viereck, L. A., C. T. Dyrness, A. R. Batten, and K. J. Wenzlick. 1992. The Alaska vegetation classification. General Technical Report PNW-GTR286. USDA Forest Service, Pacific Northwest Research Station, Portland, OR. 278 pp.
- WNHP [Washington Natural Heritage Program]. 2018. Unpublished data files. Washington Natural Heritage Program, Department of Natural Resources, Olympia, WA.
- Western Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Boulder, CO.