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CEGL003319 Oenanthe sarmentosa Marsh

Type Concept Sentence: No Data Available

Common (Translated Scientific) Name: Water Parsley Marsh

Colloquial Name: No Data Available

Hierarchy Level:  Association

Type Concept: This herbaceous vegetation occurs from Oregon to British Columbia at 152 to 715 m (500-2340 feet) elevation. Habitat is muddy openings in forested wetland (swamp), marsh, or shrub-swamp. Soils are seasonally flooded to perennially saturated loam. Oenanthe sarmentosa typically forms stands in muddy openings in both deciduous and coniferous swamp and is most common at lower elevations. Alnus rubra and Fraxinus latifolia are the primary deciduous species, and Thuja plicata and Picea sitchensis are the primary conifers, but none of these occur with much constancy or cover and are mostly peripheral to the wetland. Shrubs are also scarce, with Salix sitchensis being the most common one in sampled plots. The herb layer may be diverse, and over 40 species are recorded here, but most of them occur with low constancy and cover. Oenanthe sarmentosa is the primary species with average cover of 68% and a range of 40-99%. Other species with significant patches include Callitriche heterophylla, Typha latifolia, Eleocharis palustris, Ranunculus uncinatus, and Lysichiton americanus. Stands are usually flooded early in the season and dry down in summer, but the soil usually remains moist.

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: No Data Available

Dynamics:  No Data Available
Environmental Description:  No Data Available
Geographic Range: This association occurs from Oregon to British Columbia.

Nations: US

States/Provinces:  OR, WA


Confidence Level: Moderate

Confidence Level Comments: No Data Available
Grank: G4

Greasons: No Data Available
Type Name Database Code Classification Code
Class 2 Shrub & Herb Vegetation Class C02 2
Subclass 2.C Shrub & Herb Wetland Subclass S44 2.C
Formation 2.C.4 Temperate to Polar Freshwater Marsh, Wet Meadow & Shrubland Formation F013 2.C.4
Division 2.C.4.Nb Western North American Temperate Freshwater Marsh, Wet Meadow & Shrubland Division D031 2.C.4.Nb
Macrogroup 2.C.4.Nb.4 Vancouverian Lowland Marsh, Wet Meadow & Shrubland Macrogroup M073 2.C.4.Nb.4
Group 2.C.4.Nb.4.b Bering''s Tufted Hairgrass - Pacific Silverweed - Slough Sedge Vancouverian Freshwater Coastal Marsh & Wet Meadow Group G517 2.C.4.Nb.4.b
Alliance A4080 Water Parsley Wet Meadow Alliance A4080 2.C.4.Nb.4.b
Association CEGL003319 Water Parsley Marsh CEGL003319 2.C.4.Nb.4.b
Concept Lineage: Upgraded to Standard during screening.

Predecessors: No Data Available

Obsolete Names: No Data Available

Obsolete Parents: No Data Available
Synonomy: ? Oenanthe sarmentosa (Sawyer et al. 2009) [52.119.01]
= Oenanthe sarmentosa (McCain and Christy 2005) [7 plots]
= Oenanthe sarmentosa Association (Christy 2004)
= Oenanthe sarmentosa Herbaceous Vegetation Association (Rocchio et al. 2012)
Concept Author(s): J.A. Christy (2004)

Author of Description: J.A. Christy (2004)

Acknowledgements: No Data Available

Version Date: 04-06-12
  • Boss, T. R. 1983. Vegetation ecology and net primary productivity of selected freshwater wetlands in Oregon. Ph.D. dissertation, Oregon State University, Corvallis. 236 pp.
  • Christy, J. A. 2004. Native freshwater wetland plant associations of northwestern Oregon. Oregon Natural Heritage Information Center, Oregon State University, Portland, OR.
  • Frenkel, R. E., T. R. Boss, and S. R. Schuller. 1978. Transition zone vegetation between intertidal marsh and upland in Oregon and Washington. Grant R804963-01. U.S. Environmental Protection Agency, Corvallis, OR. 320 pp.
  • Frenkel, R. E., and J. C. Morlan. 1990. Restoration of the Salmon River salt marshes: Retrospect and prospect. Oregon State University. Report to U.S. Environmental Protection Agency, Corvallis, Oregon. 142 pp.
  • 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.
  • Mitchell, D. L. 1981. Salt marsh reestablishment following dike breaching in the Salmon River estuary, Oregon. Ph.D. dissertation. Oregon State University, Corvallis. 171 pp.
  • Rocchio, F. J., R. C. Crawford, and C. C. Thompson. 2012. San Juan Island National Historical Park vegetation classification and mapping project. Natural Resource Report NPS/NCCN/NRR--2012/603. National Park Service, Fort Collins, CO. 188 pp.
  • Sawyer, J. O., T. Keeler-Wolf, and J. Evens. 2009. A manual of California vegetation. Second edition. California Native Plant Society, Sacramento CA. 1300 pp.
  • Taylor, A. H. 1980. Plant communities and elevation in the diked portion of Joe Ney Slough: A baseline assessment of a marsh restoration project in Coos Bay, Oregon. M.S. thesis. Oregon State University, Corvallis. 105 pp.
  • Taylor, D. W., and K. A. Teare. 1979a. Ecological survey of the vegetation of the proposed Trelorita Research Natural Area, Shasta-Trinity National Forest, Trinity County, California. Unpublished report. USDA Forest Service, Pacific Southwest Research Station, Berkeley, CA.
  • 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.
  • 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.