National Wetlands Inventory Map Report for Ridgefield NWR and Vicinity Quads: Columbia, Multnomah and Washington Counties, Oregon and Cowlitz and Clark Counties Washington
Project ID: R01Y10P10: Ridgefield NWR Project area is restricted to portions of the following USGS 7.5 minute quadrangles:
Oregon: 45122-G7 (Saint Helens) 45122-F7 (Sauvie Island) 45122-E7 (Linnton) 45122-E6 (Portland) 45122-E5 (Mount Tabor) 45122-E4 (Camas)
Washington: 45122-G6 (Ridgefield) 45122-F6 (Vancouver) 45122-E3 (Washougal)
Source Imagery:
Citation: For all quads listed above: Citation_Information: Originator: USDA-FSA-APFO Aerial Photography Field Office Publication_Date: 2009 Publication place: Salt Lake City, Utah Title: Digital Orthoimagery Series of Washington Geospatial_Data_Presentation_Form: raster digital data Other_Citation_Details: 1-meter, Natural Color
Citation: For all quads listed above: Citation_Information: Originator: USDA-FSA-APFO Aerial Photography Field Office Publication_Date: 2011 Publication place: Salt Lake City, Utah Title: Digital Orthoimagery Series of Oregon Geospatial_Data_Presentation_Form: raster digital data Other_Citation_Details: 1-meter, Natural Color
Collateral Data:
. USACE LiDAR vegetation survey 2009 . USGS 1:24,000 topographic quadrangles . USGS – NED – National Elevation Dataset – 3 meters resolution . USGS – NHD – National Hydrography Dataset . Soil Survey of Columbia County, Oregon . Soil Survey of Multnomah County, Oregon . Soil Survey of Washington County, Oregon . Soil Survey of Clark County, Washington . Soil Survey of Cowlitz County, Washington
Inventory Method: Wetland identifications were done “heads-up” in ArcMap 9.3 and ArcMap 10. Aerial photo interpretation and heads-up mapping were completed in the USFWS NWI Region 1 office in Portland, Oregon by Nicholas Jones, SWCA Environmental Consulting. QC during the mapping was provided by Chris Moller, SWCA Environmental Consulting. Final QA was provided by Bill Kirchner, R1 NWI coordinator.
Field reconnaissance was conducted in May 2012. The purpose of the field work was to correlate varying signatures found on the photography to actual ground conditions. Vegetation, soils, and hydrologic conditions were examined at field sites.
Data Limitations: The user of the map is cautioned that, due to the limitation of mapping primarily through aerial photo interpretation, a small percentage of wetlands may have gone unidentified. Since the photography was taken during a particular time and season, there may be discrepancies between the map and current field conditions. Changes in landscape which occurred after the photography was taken would result in such discrepancies.
Classification: The wetland classifications that appear in the Ridgefield NWR and adjacent area quads National Wetlands Inventory (NWI) Maps are in accordance with the Classification of Wetlands and Deepwater Habitats of the United States (Cowardin et al. 1979).
General Description of the Project Area: The project area is located in Land Resource Region A, Northwestern Forest, Forage, and Specialty Crop Region and includes the “Northern Pacific Coast Range, Foothills and Valleys.” Cities and Towns include Portland, Gresham, Vancouver, Ridgefield, Camas and Troutdale.
The average annual precipitation is 30 to 60 inches (760 to 1,525 millimeters). Most of the rainfall occurs as low-intensity, Pacific frontal storms. Precipitation is evenly distributed throughout fall, winter, and spring, but summers are warm and dry. The average annual temperature is 45 to 55 degrees F (7 to 13 degrees C).
Geology consists primarily of young Tertiary sedimentary rocks (siltstone and sandstone) mixed with volcanic rocks of the same age. Also, glacial till and outwash deposits are in the northern half of the portion of the area in Washington. The landmass in Oregon consists primarily of sedimentary rocks with some minor volcanic rocks (Land Resource Regions and Major Land Resource Areas of the United States, the Caribbean, and the Pacific Basin. USDA handbook 296)
Description of wetlands: A diversity of wetlands occurs along the Columbia River and adjacent project area. The complex geology of the region supports wet meadows, slope wetlands, sloughs, springs, lacustrine fringe wetlands, palustrine wetlands adjacent to riverine systems, tidally influenced riverine and freshwater palustrine systems. Wetland systems of Lacustrine, Riverine, and Palustrine are represented in the subject area. Deepwater habitats are areas that are permanently flooded and are characterized by open water on the aerial photography. These habitats are present in the Lacustrine and Riverine systems. Unvegetated wetlands, present in all systems, include bars, flats, and rocky shores. Emergent wetlands occur in the Palustrine, and Lacustrine systems. There is a prevalence of wet meadow. Scrub-shrub and forested wetlands occur within the Palustrine systems. In the Palustrine system, these wetlands occur along the banks and floodplains of drainages, in bogs, swamps, at or below seeps and springs, and in depressions.
Description of attribute values: This table reflects classification to the class level and the water regime only. No intent is made to capture Subclasses in this table since subclass designations were made for each polygon associated with the geodatabase.
ATTRIBUTE DESCRIPTION
Permanently flooded, deepwater habitat greater than 20 acres L1UBH in size (e.g., natural lake).
Permanently flooded, deepwater habitat greater than 20 acres L1UBHh in size that is created by an impoundment (e.g., reservoir).
Permanently flooded, tidally influenced, deepwater habitat L1UBV greater than 20 acres in size (e.g., natural lake).
Permanently flooded, fresh water tidal, open water lacustrine habitat extending from the shoreward boundary to a depth of 2 L2ABV meters that is dominated by aquatic vegetation
Semi-permanently flooded, open water lacustrine habitat extending from the shoreward boundary to a depth of 2 meters that is dominated by aquatic vegetation (e.g., Lemna spp., L2ABF Potamogeton spp. and Nymphaea spp.). Intermittently exposed, open water lacustrine habitat extending from the shoreward boundary to a depth of 2 meters that is dominated by aquatic vegetation (e.g., Lemna spp., L2ABG Potamogeton spp. and Nymphaea spp.).
Permanently flooded, open water lacustrine habitat extending from the shoreward boundary to a depth of 2 meters that is dominated by aquatic vegetation (e.g., Lemna spp., L2ABH Potamogeton spp. and Nymphaea spp.).
Semi-permanently flooded, open water lacustrine habitat extending from the shoreward boundary to a depth of 2 meters that is dominated by non-persistent emergent vegetation during part of the year (e.g., Lemna spp., Potamogeton spp. and L2EM2F Nymphaea spp.).
Semi-permanently flooded, tidally influenced, open water lacustrine habitat extending from the shoreward boundary to a depth of 2 meters that is dominated by non-persistent emergent vegetation during part of the year (e.g., Lemna spp., L2EM2T Potamogeton spp. and Nymphaea spp.).
Lacustrine, littoral unconsolidated shore habitat extending from the shoreward boundary to a depth of 2 meters. Seasonally L2USC flooded.
Lacustrine, littoral unconsolidated shore habitat extending from the shoreward boundary to a depth of 2 meters. Seasonally L2USR flooded and tidally influenced
Lacustrine, littoral unconsolidated shore habitat extending from the shoreward boundary to a depth of 2 meters. Temporarily L2USS flooded and tidally influenced
Semi-permanently flooded, open water habitat extending from L2UBF the shoreward boundary to a depth of 2 meters.
Intermittently exposed, open water habitat extending from the L2UBG shoreward boundary to a depth of 2 meters.
Permanently flooded, open water habitat extending from the L2UBH shoreward boundary to a depth of 2 meters.
Open water habitat extending from the shoreward boundary to a depth of 2 meters. Artificially flooded with pumps, L2UBK impoundments and/or siphons.
Semi-permanently flooded-tidal, open water habitat extending L2UBT from the shoreward boundary to a depth of 2 meters. Semi-permanently flooded ponds vegetated with algal aquatic PAB1F beds.
Semi-permanently flooded ponds vegetated with rooted- PAB3F vascular aquatic beds.
Permanently flooded ponds vegetated with aquatic beds (e.g., PABH Lemna spp., Potamogeton spp. and Nymphaea spp.).
Artificially flooded ponds, controlled by means of pumps or PABK siphons. Dominated by aquatic vegetation.
Semi-permanently flooded ponds that are influenced by tidal fluctuation and are vegetated with aquatic beds (e.g., Lemna PABT spp., Potamogeton spp. and Nymphaea spp.).
Permanently flooded ponds that are influenced by tidal fluctuation and are vegetated with aquatic beds (e.g., Lemna PABV spp., Potamogeton spp. and Nymphaea spp.).
Seasonally flooded-tidal depressions, banks and floodplains characterized by a matrix of persistent herbaceous and PEM1/FO1R forested vegetation.
Temporarily flooded depressions, banks and floodplains characterized by a matrix of herbaceous and scrub-shrub PEM1/SS1A vegetation.
Seasonally flooded depressions, banks and floodplains characterized by a matrix of herbaceous and scrub-shrub PEM1/SS1C vegetation.
Seasonally flooded, freshwater tidal depressions, banks and floodplains characterized by a matrix of herbaceous and scrub- PEM1/SS1R shrub vegetation.
Seasonally flooded, freshwater tidal depressions, banks and floodplains characterized by a matrix of herbaceous vegetation PEM1/USR and unconsolidated shore.
Temporarily flooded wetlands dominated by persistent herbaceous vegetation. These areas are comprised of Juncus spp., Carex spp., Eleocharis spp., Rumex spp., Equisetum spp., Polyganum spp., Potentilla anserina, and Phalaris PEM1A arundinacea.
Wetlands dominated by herbaceous vegetation in depressions, bogs, or below springs where the water table is usually at or PEM1B near the surface. Seasonally flooded wetlands dominated by persistent herbaceous vegetation. These areas are comprised of Juncus spp., Carex spp., Eleocharis spp., Rumex spp., Equisetum PEM1C spp., Polygonum spp., and Phalaris arundinacea.
Seasonally flooded, saturated depressions comprised of erect, rooted, herbaceous vegetation (e.g., Scirpus spp., Typha spp., PEM1E Carex spp., and Juncus spp.).
Semi-permanently flooded depressions comprised of erect, rooted, herbaceous vegetation (e.g., Scirpus spp., Typha spp., PEM1F Carex spp., and Juncus spp.).
Permanently flooded depressions comprised of erect, rooted, herbaceous vegetation (e.g., Scirpus spp., Typha spp., and PEM1H Juncus spp.).
Permanently flooded depressions which are influenced by tidal fluctuations and are comprised of erect, rooted, herbaceous PEM1R vegetation (e.g., Scirpus spp., Typha spp., and Juncus spp.).
Temporarily flooded depressions which are influenced by tidal fluctuations and are comprised of erect, rooted, herbaceous PEM1S vegetation (e.g., Scirpus spp., Typha spp., and Juncus spp.).
Permanently flooded depressions which are influenced by tidal fluctuations and are comprised of erect, rooted, herbaceous PEM1T vegetation (e.g., Scirpus spp., Typha spp., and Juncus spp.).
Semi-permanently flooded depressions comprised of non- persistent, erect, rooted, herbaceous vegetation (e.g., Scirpus PEM2F spp., Typha spp., Carex spp., and Juncus spp.).
Semi-permanently flooded, tidally influenced depressions comprised of non-persistent, erect, rooted, herbaceous vegetation (e.g., Scirpus spp., Typha spp., Carex spp., and PEM2T Juncus spp.).
Temporarily flooded-tidal depressions and floodplains characterized by a matrix of forested and herbaceous PFO1/EM1S vegetation.
Seasonally flooded depressions and floodplains characterized PFO1/SS1C by a matrix of forested and scrub-shrub vegetation.
Seasonally flooded, freshwater tidal depressions and floodplains characterized by a matrix of forested and scrub- PFO1/SS1R shrub vegetation. Temporarily flooded depressions and floodplains dominated by forested vegetation. Common palustrine forested species include Fraxinus latifolia, Acer macrophyllum, Picea sitchensis, PFO1A Pinus contorta, Thuja plicata, and Populus trichocarpa.
Seasonally flooded depressions and floodplains dominated by forested vegetation. Common palustrine forested species include Fraxinus latifolia, Acer macrophyllum, Picea sitchensis, PFO1C Pinus contorta, Thuja plicata, and Populus trichocarpa.
Seasonally flooded, freshwater tidal floodplains and banks dominated by forested vegetation. Common palustrine forested species include Fraxinus latifolia, Acer macrophyllum, Picea sitchensis, Pinus contorta, Thuja plicata, and Populus PFO1R trichocarpa.
Temporarily flooded, freshwater tidal floodplains and banks PFO1S dominated by forested vegetation.
Semi-permanently, flooded, freshwater tidal floodplains and banks dominated by forested vegetation. Common palustrine forested species include Fraxinus latifolia, Acer macrophyllum, PFO1T Picea sitchensis, Pinus contorta, Thuja plicata, and Populus
Temporarily flooded depressions and floodplains dominated by PFO5A dead forested vegetation.
Seasonally flooded depressions and floodplains dominated by PFO5C dead forested vegetation.
Semi-permanently flooded depressions and floodplains PFO5F dominated by dead forested vegetation.
Seasonally flooded-tidal depressions and floodplains characterized by a matrix of scrub-shrub and forested PSS1/FO1R vegetation.
Temporarily flooded-tidal depressions and floodplains characterized by a matrix of scrub-shrub and forested PSS1/FO1S vegetation.
Temporarily flooded scrub-shrub wetland typically found along drainages. Common scrub shrub species include Salix spp., Alnus rubra, Spirea douglassi, Cornus stolonifera, Myrica PSS1A californica, and Rubus spectabilis.
Saturated scrub-shrub wetland usually associated with springs PSS1B or bogs. Seasonally flooded scrub-shrub wetland typically found along drainages. Common scrub shrub species include Salix spp., Alnus rubra, Spirea douglassi, Cornus stolonifera, Myrica PSS1C califonica, and Rubus spectabilis.
Semi-permanently flooded scrub-shrub wetland typically found along drainages. Common scrub shrub species include Salix spp., Alnus rubra, Spirea douglassi, Cornus stolonifera, Myrica PSS1F califonica, and Rubus spectabilis.
Seasonally flooded, freshwater tidal floodplains and banks that PSS1R are dominated by scrub-shrub vegetation.
Temporarily flooded, freshwater tidal floodplains and banks that PSS1S are dominated by scrub-shrub vegetation.
Semi-permanently flooded, freshwater tidal floodplains and PSS1T banks that are dominated by scrub-shrub vegetation.
Saturated dead scrub-shrub wetland usually associated with PSS5B springs or bogs.
PUBF Semi-permanently flooded ponds.
PUBH Permanently flooded ponds.
Artificially flooded pond usually excavated and comprised of an PUBK artificial substrate (e.g., sewage detention pond).
Semi-permanently flooded ponds that are influenced by tidal PUBT fluctuation.
Permanently flooded ponds that are influenced by tidal PUBV fluctuation.
PUS5C Seasonally flooded basins vegetated.
PUS5R Seasonally flooded, freshwater tidal basins vegetated.
PUS5S Temporarily flooded, freshwater tidal basins vegetated.
PUSA Temporarily flooded basins with little or no vegetation.
PUSC Seasonally flooded basins with little or no vegetation.
Seasonally flooded, freshwater tidal basins with little or non- PUSR persistent vegetation.
Temporarily flooded, freshwater tidal basins with little or non- PUSS persistent vegetation. Semi-permanently flooded, tidally influenced riverine deepwater R1ABT habitat dominated by aquatic vegetation.
Seasonally flooded, freshwater tidal floodplains, banks, and sand bars that are characterized by rocky rubble substrate and R1RS2R little or no vegetation.
Seasonally flooded, freshwater tidal floodplains, banks, and sand bars that are characterized by rocky substrate and little or R1RSR no vegetation.
Semi-permanently flooded, tidally influenced riverine deepwater R1UBT habitat.
Permanently flooded, tidally influenced riverine deepwater R1UBV habitat.
Seasonally flooded, freshwater tidal floodplains, banks, and sand bars that are characterized by unconsolidated substrate R1USR and little or no vegetation.
Temporarily flooded, freshwater tidal floodplains, banks, and sand bars that are characterized by unconsolidated substrate R1USS and little or no vegetation.
Semi-permanently flowing, lower perennial rivers. R2UBF
R2UBH Permanently flowing, lower perennial rivers.
Seasonally flooded unconsolidated substrate (e.g., sand bars) R2USC associated with lower perennial riverine systems.
R3UBF Semi-permanently flowing, upper perennial rivers.
R3UBH Permanently flowing upper perennial rivers.
Seasonally flooded unconsolidated substrate (e.g., sand bars) R3USC associated with upper perennial riverine systems.
R4SBC Seasonally flowing riverine channels.
R4SBR Seasonally flowing, fresh water, tidal streambeds channels.
Description of Special Modifiers:
SPECIAL MODIFIER DESCRIPTION Beaver - Wetland is created, modified or supported by the action of beavers. The beaver modifier is used on b all delineations where visible hydrologic changes have occurred due to beaver activity.
Partially Drained - The water level has been artificially lowered, but the area is still classified as wetland because soil moisture is sufficient to support d hydrophytes. This modifier is also used to indicate extensive ditch networks in wetlands where, due to the complexity or narrow width of the ditches, individual delineation is not possible.
Farmed - The soil surface has been mechanically or physically altered for production of crops, but f hydrophytes will become re-established if farming is discontinued.
Diked/Impounded - Created or modified by a man-made h barrier or dam which obstructs the inflow or outflow of water.
Artificial - Substrates classified as Rock Bottom, Unconsolidated Bottom, Rocky Shore and r Unconsolidated Shore that were emplaced by man using natural or synthetic materials.
Excavated - Lies within a basin or channel excavated by x man.
Partial List of Wetland and Riparian Plant Species With Indicator Status (NRCS 2011):
Scientific Name Common Name Indicator Status
Acorus calamus calamus OBL
Agrostis exarata spike bentgrass FACW
Agrostis semiverticillata FACW
Alisma gramineum narrowleaf water plantain OBL
Alisma lanceolatum lanceleaf water plantain OBL
Allium madidum swamp onion OBL Allium validum Pacific onion OBL
Alopecurus aequalis shortawn foxtail OBL
Alopecurus geniculatus water foxtail OBL
Alopecurus saccatus Pacific foxtail FACW+
Amorpha fruticosa desert false indigo FACW
Androsace filiformis filiform rockjasmine FACW
Arenaria paludicola marsh sandwort OBL
Artemisia lindleyana Columbia River wormwood OBL
Aster frondosus FACW+
Azolla filiculoides Pacific mosquitofern OBL
Azolla mexicana Mexican mosquitofern OBL
Baccharis douglasii saltmarsh baccharis OBL
Barbarea orthoceras American yellowrocket FACW+
Beckmannia syzigachne American sloughgrass OBL
Bergia texana Texas bergia OBL
Berula erecta cutleaf waterparsnip OBL
Betula glandulosa resin birch OBL
Betula pumila bog birch OBL
Bidens cernua nodding beggartick FACW+
Bidens tripartita threelobe beggarticks FACW
Boisduvalia glabella FACW+
Boltonia asteroides white doll's daisy OBL
Brasenia schreberi watershield OBL
Calamagrostis canadensis bluejoint FACW+
Calamagrostis neglecta FACW Calamagrostis scribneri FACW
Callitriche hermaphroditica northern water-starwort OBL
Callitriche heterophylla twoheaded water-starwort OBL
Callitriche marginata winged water-starwort OBL
Callitriche stagnalis pond water-starwort OBL
Calochortus uniflorus Monterey mariposa lily FACW+
Caltha leptosepala white marsh marigold OBL
Caltha palustris yellow marsh marigold OBL
Cardamine breweri Brewer's bittercress FACW+
Cardamine cordifolia heartleaf bittercress FACW
Cardamine gemmata FACW+
Cardamine penduliflora Willamette Valley bittercress OBL
Cardamine pensylvanica Pennsylvania bittercress FACW
Carex amplifolia bigleaf sedge FACW+
Carex aquatilis water sedge OBL
Carex arcta northern cluster sedge OBL
Carex atherodes wheat sedge OBL
Carex aurea golden sedge FACW+
Carex bebbii Bebb's sedge OBL
Carex breviligulata FACW+
Carex buxbaumii Buxbaum's sedge OBL
Carex californica California sedge OBL
Carex canescens silvery sedge FACW+
Carex comosa longhair sedge OBL
Carex cusickii Cusick's sedge OBL Carex densa dense sedge OBL
Carex diandra lesser panicled sedge OBL
Carex disperma softleaf sedge FACW
Carex exsiccata western inflated sedge OBL
Carex feta greensheath sedge FACW
Carex gynocrates northern bog sedge OBL
Carex hystericina bottlebrush sedge OBL
Carex interrupta greenfruit sedge OBL
Carex kelloggii FACW+
Carex lasiocarpa woollyfruit sedge OBL
Carex lenticularis lakeshore sedge FACW+
Carex leporina FACW
Carex leptalea bristlystalked sedge OBL
Carex limnophila FACW
Carex limosa mud sedge OBL
Carex livida livid sedge OBL
Carex luzulina woodrush sedge OBL
Carex lyngbyei Lyngbye's sedge OBL
Carex microptera smallwing sedge FAC
Carex nebrascensis Nebraska sedge OBL
Carex obnupta slough sedge OBL
Carex pluriflora manyflower sedge OBL
Carex praeceptorium FACW+
Carex saxatilis rock sedge FACW+
Carex serratodens twotooth sedge FACW Carex sheldonii Sheldon's sedge OBL
Carex simulata analogue sedge OBL
Carex stipata awlfruit sedge OBL
Carex vesicaria blister sedge OBL
Carex vicaria western fox sedge OBL
Carex viridula little green sedge FACW+
Carex vulpinoidea fox sedge OBL
Catabrosa aquatica water whorlgrass OBL
Centaurium exaltatum desert centaury FACW
Centunculus minimus FACW
Ceratophyllum demersum coon's tail OBL
Chenopodium rubrum red goosefoot FACW+
Chrysosplenium glechomifolium Pacific golden saxifrage OBL
bulblet-bearing water Cicuta bulbifera hemlock OBL
Cicuta douglasii western water hemlock OBL
Cinna latifolia drooping woodreed FACW
Cirsium douglasii Douglas' thistle OBL
Coleanthus subtilis mossgrass OBL
Cordylanthus maritimus saltmarsh bird's-beak OBL
Cotula coronopifolia common brassbuttons FACW+
Crassula aquatica water pygmyweed OBL
Cyperus acuminatus tapertip flatsedge OBL
Cyperus erythrorhizos redroot flatsedge OBL
Cypripedium californicum California lady's slipper OBL Darlingtonia californica California pitcherplant OBL
Dodecatheon alpinum alpine shootingstar FACW+
Downingia bicornuta doublehorn calicoflower OBL
Downingia elegans elegant calicoflower OBL
Downingia laeta Great Basin calicoflower OBL
Downingia yina cascade calicoflower OBL
Drosera anglica English sundew OBL
Drosera rotundifolia roundleaf sundew OBL
Dulichium arundinaceum threeway sedge OBL
Echinochloa crus-galli barnyardgrass FACW
Echinochloa crus-pavonis gulf cockspur grass FACW
Echinochloa muricata rough barnyardgrass FACW
Egeria densa Brazilian waterweed OBL
Elatine brachysperma shortseed waterwort OBL
Elatine californica California waterwort OBL
Eleocharis acicularis needle spikerush OBL
Eleocharis engelmannii Engelmann's spikerush OBL
Eleocharis macrostachya pale spikerush OBL
Eleocharis obtusa blunt spikerush OBL
Eleocharis ovata ovate spikerush OBL
Eleocharis palustris common spikerush OBL
Eleocharis parishii Parish's spikerush FACW+
Eleocharis parvula dwarf spikerush OBL
Eleocharis rostellata beaked spikerush OBL
Eleocharis uniglumis onescale spikerush OBL Elodea bifoliata twoleaf waterweed NI
Elodea canadensis Canadian waterweed OBL
Elodea nuttallii western waterweed OBL
Epilobium glaberrimum glaucus willowherb FACW
Epilobium leptophyllum bog willowherb FACW
Epilobium oreganum Grants Pass willowherb OBL
Epilobium oregonense Oregon willowherb FACW
Epilobium palustre marsh willowherb OBL
Epipactis gigantea stream orchid OBL
Equisetum fluviatile water horsetail OBL
Equisetum telmateia giant horsetail FACW
Eragrostis hypnoides teal lovegrass OBL
Erigeron coulteri large mountain fleabane FACW
Eriophorum angustifolium tall cottongrass OBL
Eriophorum chamissonis Chamisso's cottongrass OBL
Eriophorum crinigerum fringed cottongrass OBL
Eriophorum gracile slender cottongrass OBL
Eryngium articulatum beethistle OBL
Eryngium petiolatum rushleaf eryngo OBL
Galium trifidum threepetal bedstraw FACW+
Gentiana prostrata pygmy gentian FACW
Gentiana sceptrum king's scepter gentian OBL
Gentiana setigera Mendocino gentian OBL
Gentianopsis simplex oneflower fringed gentian FACW
Glaux maritima sea milkwort FACW+ Glyceria ×occidentalis northwestern mannagrass OBL
Glyceria borealis small floating mannagrass OBL
Glyceria elata FACW+
Glyceria leptostachya davy mannagrass OBL
Glyceria striata fowl mannagrass OBL
Gratiola ebracteata bractless hedgehyssop OBL
Gratiola neglecta clammy hedgehyssop OBL
Helenium autumnale common sneezeweed FACW
Helenium bigelovii Bigelow's sneezeweed FACW+
Helenium bolanderi coastal sneezeweed FACW
Heliotropium curassavicum salt heliotrope OBL
Hemicarpha aristulata FACW
Hemicarpha occidentalis FACW
Hippuris vulgaris common mare's-tail OBL
Howellia aquatilis water howellia OBL
Hydrocotyle ranunculoides floating marshpennywort OBL
Hydrocotyle umbellata manyflower marshpennywort OBL
Hypericum anagalloides tinker's penny OBL
Iris missouriensis Rocky Mountain iris FACW+
Iris pseudacorus paleyellow iris OBL
Isoetes bolanderi Bolander's quillwort OBL
Isoetes howellii Howell's quillwort OBL
Isoetes nuttallii Nuttall's quillwort OBL
Jaumea carnosa marsh jaumea OBL
Juncus acuminatus tapertip rush OBL Juncus albescens northern white rush OBL
Juncus articulatus jointleaf rush OBL
Juncus balticus FACW+
Juncus bolanderi Bolander's rush OBL
Juncus bufonius toad rush FACW
Juncus bulbosus bulbous rush OBL
Juncus effusus common rush FACW
Juncus filiformis thread rush FACW+
Juncus gerardii saltmeadow rush FACW+
Juncus hemiendytus Herman's dwarf rush FACW+
Juncus mertensianus Mertens' rush OBL
Juncus nodosus knotted rush OBL
Juncus regelii Regel's rush FACW
Juncus saximontanus Rocky Mountain rush FACW
Juncus supiniformis hairyleaf rush OBL
Juncus uncialis twelfth rush FACW+
Kalmia microphylla alpine laurel FACW+
Kobresia simpliciuscula simple bog sedge FAC
Lasthenia glaberrima smooth goldfields OBL
Lathyrus palustris marsh pea OBL
Ledum glandulosum western Labrador tea FACW+
Ledum groenlandicum bog Labrador tea OBL
Leersia oryzoides rice cutgrass OBL
Lemna gibba swollen duckweed OBL
Lemna minor common duckweed OBL Lemna trisulca star duckweed OBL
Lemna valdiviana valdivia duckweed OBL
Lepidium dictyotum alkali pepperweed FACW
Leptochloa fascicularis FACW
Leucothoe davisiae Sierra laurel FACW
Lilaea scilloides awl-leaf lilaea OBL
Lilaeopsis occidentalis western grasswort OBL
Lilium pardalinum leopard lily FACW+
Lilium parvum Sierra tiger lily OBL
Limnanthes douglasii Douglas' meadowfoam OBL
Limnanthes floccosa woolly meadowfoam OBL
Limnanthes gracilis slender meadowfoam OBL
Limosella acaulis Owyhee mudwort OBL
Limosella aquatica water mudwort OBL
Lindernia dubia yellowseed false pimpernel OBL
Lobelia dortmanna Dortmann's cardinalflower OBL
Ludwigia palustris marsh seedbox OBL
Lycopus americanus American water horehound OBL
Lycopus asper rough bugleweed OBL
Lycopus uniflorus northern bugleweed OBL
Lysichiton americanus American skunkcabbage OBL
Lysimachia hybrida lowland yellow loosestrife OBL
Lysimachia nummularia creeping jenny FACW
Lysimachia terrestris earth loosestrife OBL
Lysimachia thyrsiflora tufted loosestrife OBL Lythrum salicaria purple loosestrife FACW+
Marsilea vestita hairy waterclover OBL
Mentha ×piperita peppermint FACW+
Mentha aquatica water mint NO
Mentha citrata FACW
Mentha pulegium pennyroyal OBL
Mentha spicata spearmint OBL
Menyanthes trifoliata buckbean OBL
Mertensia ciliata tall fringed bluebells FACW+
Mimetanthe pilosa false monkeyflower FACW
Mimulus alsinoides wingstem monkeyflower OBL
Mimulus cardinalis scarlet monkeyflower FACW
Mimulus dentatus coastal monkeyflower OBL
Mimulus floribundus manyflowered monkeyflower OBL
Mimulus guttatus seep monkeyflower OBL
Mimulus lewisii purple monkeyflower FACW+
Mimulus moschatus muskflower FACW+
Mimulus nasutus FACW
Mimulus primuloides primrose monkeyflower FACW+
Mimulus ringens Allegheny monkeyflower OBL
Mimulus tilingii Tiling's monkeyflower OBL
Mimulus tricolor tricolor monkeyflower OBL
Mimulus washingtonensis Washington monkeyflower OBL
Mitella ovalis coastal miterwort OBL
Montia chamissoi water minerslettuce OBL Montia fontana annual water minerslettuce OBL
Myosotis laxa bay forget-me-not OBL
Myosotis scorpioides true forget-me-not FACW
Myosurus minimus tiny mousetail OBL
Myrica gale sweetgale OBL
Myriophyllum hippuroides western watermilfoil OBL
Myriophyllum spicatum Eurasian watermilfoil OBL
Myriophyllum verticillatum whorl-leaf watermilfoil OBL
Najas flexilis nodding waternymph OBL
Najas guadalupensis southern waternymph OBL
Narthecium californicum California bog asphodel OBL
Nasturtium officinale watercress OBL
Navarretia intertexta needleleaf navarretia FACW
Navarretia leucocephala whitehead navarretia OBL
Nuphar lutea yellow pond-lily OBL
Nymphaea odorata American white waterlily OBL
Oenanthe sarmentosa water parsely OBL
Orthocarpus castillejoides FACW+
Oxypolis occidentalis western cowbane OBL
Parapholis incurva curved sicklegrass FACW
Parnassia fimbriata fringed grass of Parnassus OBL
Parnassia palustris marsh grass of Parnassus OBL
Paspalum distichum knotgrass FACW
Pedicularis attollens little elephantshead OBL
Pedicularis groenlandica elephanthead lousewort OBL Phalaris arundinacea reed canarygrass FACW
Phragmites australis common reed FACW+
Phyllospadix scouleri Scouler's surfgrass OBL
Phyllospadix torreyi Torrey's surfgrass OBL
Physostegia parviflora western false dragonhead FACW
Pilularia americana American pillwort OBL
Pinguicula macroceras California butterwort OBL
Plagiobothrys bracteatus bracted popcornflower FACW+
Plagiobothrys figuratus fragrant popcornflower FACW
Plagiobothrys hirtus rough popcornflower OBL
Plagiobothrys leptocladus finebranched popcornflower FACW
Plagiobothrys scouleri Scouler's popcornflower FACW
Plagiobothrys stipitatus stalked popcornflower FACW
Plantago bigelovii coast plantain OBL
Plantago macrocarpa seashore plantain OBL
Pleuropogon oregonus Oregon semaphoregrass OBL
Pleuropogon refractus nodding semaphoregrass OBL
Poa leptocoma marsh bluegrass FACW+
Podagrostis thurberiana FACW
Polemonium occidentale western polemonium FACW
Polygonum amphibium water knotweed OBL
Polygonum confertiflorum FACW+
Polygonum hydropiper marshpepper knotweed OBL
Polygonum hydropiperoides swamp smartweed OBL
Polygonum lapathifolium curlytop knotweed FACW Polygonum pensylvanicum Pennsylvania smartweed FACW
Polygonum persicaria spotted ladysthumb FACW
Polygonum punctatum dotted smartweed OBL
Polypogon interruptus ditch rabbitsfoot grass FACW
Polypogon monspeliensis annual rabbitsfoot grass FACW
Porterella carnosula fleshy porterella OBL
Potamogeton alpinus alpine pondweed OBL
Potamogeton amplifolius largeleaf pondweed OBL
Potamogeton crispus curly pondweed OBL
Potamogeton diversifolius waterthread pondweed OBL
Potamogeton epihydrus ribbonleaf pondweed OBL
Potamogeton foliosus leafy pondweed OBL
Potamogeton gramineus variableleaf pondweed OBL
Potamogeton illinoensis Illinois pondweed OBL
Potamogeton natans floating pondweed OBL
Potamogeton nodosus longleaf pondweed OBL
Potamogeton praelongus whitestem pondweed OBL
Potamogeton pusillus small pondweed OBL
Potamogeton richardsonii Richardson's pondweed OBL
Potamogeton robbinsii Robbins' pondweed OBL
Potamogeton zosteriformis flatstem pondweed OBL
Potentilla newberryi Newberry's cinquefoil OBL
Potentilla paradoxa Paradox cinquefoil FACW
Potentilla rivalis brook cinquefoil FACW
Psilocarphus brevissimus short woollyheads FACW+ Psilocarphus oregonus Oregon woollyheads OBL
Puccinellia distans weeping alkaligrass FACW+
Puccinellia lucida shining alkaligrass OBL
Puccinellia nutkaensis Nootka alkaligrass OBL
Puccinellia nuttalliana Nuttall's alkaligrass FACW+
Ranunculus aquatilis white water crowfoot OBL
Ranunculus cymbalaria alkali buttercup OBL
Ranunculus flabellaris yellow water buttercup OBL
Ranunculus gmelinii Gmelin's buttercup FACW
Ranunculus lobbii Lobb's buttercup OBL
Ranunculus longirostris longbeak buttercup OBL
Ranunculus macounii Macoun's buttercup OBL
Ranunculus pensylvanicus Pennsylvania buttercup FACW
Ranunculus populago popular buttercup FACW
Ranunculus sceleratus cursed buttercup OBL
Ranunculus trichophyllus threadleaf crowfoot OBL
Rhynchospora alba white beaksedge OBL
Rhynchospora capitellata brownish beaksedge OBL
Ribes hudsonianum northern black currant FACW
Rorippa columbiae Columbian yellowcress OBL
Rorippa curvipes bluntleaf yellowcress FACW
Rorippa curvisiliqua curvepod yellowcress OBL
Rorippa palustris bog yellowcress OBL
Rorippa sylvestris creeping yellowcress OBL
Rumex fueginus FACW+ Rumex maritimus golden dock FACW+
Rumex occidentalis FACW+
Rumex salicifolius willow dock FACW
Ruppia cirrhosa spiral ditchgrass OBL
Ruppia maritima widgeongrass OBL
Sagittaria cuneata arumleaf arrowhead OBL
Sagittaria latifolia broadleaf arrowhead OBL
Salicornia rubra red swampfire OBL
Salix boothii Booth's willow OBL
Salix commutata undergreen willow OBL
Salix drummondiana Drummond's willow FACW
Salix eastwoodiae mountain willow FACW
Salix exigua narrowleaf willow OBL
Salix farriae Farr's willow OBL
Salix hookeriana dune willow FACW-
Salix lasiandra FACW+
Salix lemmonii Lemmon's willow FACW+
Salix lutea yellow willow OBL
Salix pedicellaris bog willow OBL
Salix piperi FACW
Salix planifolia diamondleaf willow OBL
Salix tracyi Tracy's willow FACW
Salix wolfii Wolf's willow OBL
Saxifraga nuttallii Nuttall's saxifrage OBL
Saxifraga oregana Oregon saxifrage FACW+ Scheuchzeria palustris rannoch-rush OBL
Scirpus congdonii Congdon's bulrush FACW
Scirpus cyperinus woolgrass OBL
Scirpus microcarpus panicled bulrush OBL
Scirpus nevadensis Nevada bulrush OBL
Scirpus pallidus cloaked bulrush OBL
Scolochloa festucacea common rivergrass OBL
Scutellaria galericulata marsh skullcap OBL
Scutellaria lateriflora blue skullcap FACW+
Senecio cymbalarioides FACW
Senecio hydrophilus water ragwort OBL
Senecio triangularis arrowleaf ragwort FACW+
Sisyrinchium californicum golden blue-eyed grass FACW+
Sisyrinchium idahoense Idaho blue-eyed grass FACW
Sisyrinchium sarmentosum mountain blue-eyed grass OBL
Sium suave hemlock waterparsnip OBL
Sparganium emersum European bur-reed OBL
Sparganium eurycarpum broadfruit bur-reed OBL
Spartina alterniflora smooth cordgrass OBL
Spartina pectinata prairie cordgrass OBL
Spergularia canadensis Canadian sandspurry FACW
Sphenosciadium capitellatum woollyhead parsnip FACW
Spiraea douglasii rose spirea FACW
Spiranthes romanzoffiana hooded lady's tresses FACW
Stachys emersonii FACW Stellaria calycantha northern starwort FACW+
Stellaria humifusa saltmarsh starwort OBL
Stellaria longifolia longleaf starwort FACW
Subularia aquatica waterawlwort OBL
Trifolium wormskioldii cows clover FACW+
Trollius laxus American globeflower OBL
Typha angustifolia narrowleaf cattail OBL
Typha domingensis southern cattail OBL
Typha latifolia broadleaf cattail OBL
Utricularia gibba humped bladderwort OBL
Utricularia intermedia flatleaf bladderwort OBL
Utricularia macrorhiza common bladderwort OBL
Utricularia minor lesser bladderwort OBL
Vaccinium macrocarpon cranberry OBL
Vaccinium oxycoccos small cranberry OBL
Vallisneria americana American eelgrass OBL
Veratrum californicum California false hellebore FACW+
Veratrum viride green false hellebore FACW
Veronica americana American speedwell OBL
Veronica anagallis-aquatica water speedwell OBL
Veronica peregrina neckweed OBL
Veronica scutellata skullcap speedwell OBL
Viola lanceolata bog white violet OBL
Viola macloskeyi small white violet OBL
Viola palustris marsh violet OBL Wolffia columbiana Columbian watermeal OBL
Zannichellia palustris horned pondweed OBL
Zostera marina seawrack OBL
Regional specialized conventions: None
Other discussion of mapping issues (image quality, water conditions, etc.): None
References:
Cowardin, L.M., V. Carter, F.C. Golet, and E.T. Laroe. 1979. Classification of Wetlands and Deepwater Habitats of the United States. United States Department of the Interior, Fish and Wildlife Service, FWS/PBS 79/81, Washington, D.C.
Dahl, T.E., J. Dick, J. Swords and B.O. Wilen. 2009. Data Collection Requirements and Procedures for Mapping Wetland, Deepwater and Related Habitats of the United States. Division of Habitat and
Resource Conservation, National Standards and Support Team, Madison, WI. 85 p. Natural Resources Conservation Service. 2011. Soil Survey Geographic (SSURGO) Database for Benton, Clatsop, Columbia, Douglas, Lane, Lincoln, Tillamook, Washington, and Yamhill counties, OR. http://soildatamart.nrcs.usda.gov. (Accessed June 21, 2012).United States Department of Agriculture.
Natural Resource Conservation Service. 2011. The PLANTS Database. http://plants.usda.gov. (Accessed June 21, 2012). United States Department of Agriculture, National Plant Data Team, Greensboro, NC.
United States Department of Agriculture, Natural Resources Conservation Service. 2006. Land Resource Regions and Major Land Resource Areas of the United States, the Caribbean, and the Pacific Basin. U.S. Department of Agriculture Handbook 296.