Collections Database

U.S.A., Washington, King County:
Lake Washington, on Mercer Island.
47.57083°, -122.22083°. Datum: WGS 84. Coordinate uncertainty: 10000 meters. Georeferenced by WTU Staff. Coordinate Source: GeoLocate.

Submerged in shallow water. Origin: Native.

J. William Thompson 7592    24 Jul 1931

U.S.A., Washington, Pierce County:
Clover Creek.
47.15682°, -122.528435°. Datum: WGS 84. Coordinate uncertainty: 10000 meters. Georeferenced by WTU Staff. Coordinate Source: GeoLocate.

In mud. Origin: Native.

W. J. Eyerdam 1428    20 Jul 1937

U.S.A., Washington, Pend Oreille County:
Calispell Lake.
48.34389°, -117.29944°. Datum: WGS 84. Coordinate uncertainty: 10000 meters. Georeferenced by WTU Staff. Coordinate Source: GeoLocate.

Origin: Native.

C. F. Yocom s.n.    15 Aug 1947

U.S.A., Washington, San Juan County:
Near dock on W shore of Egg Lake, Egg Lake Road, San Juan Island. SW 1/4 of SW 1/4.
Elev. 160 ft. T36N R3W S33 SW. Datum: WGS 84. Coordinate uncertainty: 500 meters. Georeferenced by WTU Staff. Coordinate Source: GeoLocate.

Small moist meadow near pond. Origin: Native.

P. F. Zika 14108    22 Aug 1999

U.S.A., Washington, Pend Oreille County:
Lake Thomas (in the Little Pend Oreille chain).
48.62418°, -117.49255°. Datum: WGS 84. Coordinate uncertainty: 4000 meters. Georeferenced by WTU Staff. Coordinate Source: GeoLocate.

Origin: Native.

E. F. Layser 1824     Aug 1971

U.S.A., Washington, Spokane County:
Little Spokane River.
47.794116°, -117.534588°. Datum: WGS 84. Coordinate uncertainty: 1000 meters. Georeferenced by WTU Staff. Coordinate Source: GeoLocate.

Origin: Native.

C. F. Yocom s.n.    11 Aug 1947

U.S.A., Washington, Thurston County:
Hicks Lake, 4 mi E of Olympia, near public access area.
47.038029°, -122.814476°. Datum: WGS 84. Coordinate uncertainty: 1000 meters. Georeferenced by WTU Staff. Coordinate Source: GeoLocate.

Growing in mud in shallow water. Origin: Native.

C. L. Hitchcock 24127    22 Sep 1965

U.S.A., Washington, Ferry County:
Okanogan Valley: Swan Lake.
T35N R32E S20. Datum: NAD 27. Coordinate uncertainty: 805 meters. Georeferenced by Ben Legler. Coordinate Source: TRS2LL.

Submerged at edge of lake by boat dock. Phenology: Vegetative. Origin: Native.

Alison Colwell 99-12    8 Jul 1999

U.S.A., Washington, San Juan County:
Orcas Island; Cascade Lake, southeast of East Sound, east side of lake, near public dock/picnic area.
Elev. 300 ft. 48.65°, -122.865°. Datum: WGS 84. Coordinate uncertainty: 10000 meters. Georeferenced by WTU Staff. Coordinate Source: GeoLocate.

Muddy lake bottom, in 5 - 20 feet of water. Abundant. Phenology: Vegetative. Origin: Native.

Scott R. Atkinson 209    28 Apr 1985

U.S.A., Washington, King County:
Cottage Lake.
47.75361°, -122.08694°. Datum: WGS 84. Coordinate uncertainty: 10000 meters. Georeferenced by WTU Staff. Coordinate Source: GeoLocate.

In mud, 5 feet depth. Phenology: Vegetative. Origin: Native.

W. J. Eyerdam s.n.    17 Oct 1937

U.S.A., Oregon, Lane County:
Willamette River, east of crusher near Eugene.

Aquatic. Phenology: Vegetative. Origin: Native.

Orlin L. Ireland 537    31 May 1951

U.S.A., Washington, King County:
East side of Lake Sammamish.
47.64194°, -122.07917°. Datum: WGS 84. Coordinate uncertainty: 10000 meters. Georeferenced by WTU Staff. Coordinate Source: GeoLocate.

Phenology: Vegetative. Origin: Native.

I. C. Otis 1713    7 Jul 1933

U.S.A., Washington, King County:
East side of Lake Sammamish.
47.64194°, -122.07917°. Datum: WGS 84. Coordinate uncertainty: 10000 meters. Georeferenced by WTU Staff. Coordinate Source: GeoLocate.

Phenology: Vegetative. Origin: Native.

I. C. Otis 1713    7 Jul 1933

U.S.A., Washington, King County:
Green Lake, Seattle.
47.681673°, -122.340866°. Datum: WGS 84. Coordinate uncertainty: 1312 meters. Georeferenced by Maria Yousoufian. Coordinate Source: Digital Map.

Phenology: Flowers. Origin: Native.

C. V. Piper s.n.     Sep 1898

U.S.A., Oregon, Deschutes County:
Bend.
44.058173°, -121.31531°. Datum: WGS 84. Coordinate uncertainty: 8528 meters. Georeferenced by Joseph Stormer. Coordinate Source: GeoLocate.

River margin. Phenology: Vegetative. Origin: Native.

Morton E. Peck 15742    19 Jul 1927

U.S.A., Washington, King County:
Seattle; Lake Washington.
47.60639°, -122.33083°. Datum: WGS 84. Coordinate uncertainty: 10000 meters. Georeferenced by WTU Staff. Coordinate Source: GeoLocate.

Phenology: Vegetative. Origin: Native.

M. Bolger s.n.    22 Oct 1910

U.S.A., Oregon
Columbia River bottoms.

Ponds. Phenology: Vegetative. Origin: Native.

M. W. Gorman s.n.    20 May 1988

U.S.A., Oregon, Benton County:
Corvallis Sand and Gravel Company; Along Willamette River.

Gravel pit filled with water. Phenology: Vegetative. Origin: Native.

Quentin D. Clarkson s.n.    21 Nov 1952

Canada, British Columbia
Vancouver Island; Dougan Lake along Nanimo-Victoria highway about 4 miles north of Shawnigan Lake.

In shallow water along margin of lake. Common. Phenology: Vegetative. Origin: Native.

J. A. Calder 29825    30 May 1961
with K. T. MacKay

U.S.A., Montana, Lake County:
1 mile south of Nine-Pipes Reservoir.

In large "pothole" surrounded by Typha, water about 3 feet deep. Phenology: Vegetative. Origin: Native.

C. L. Hitchcock 23993    11 Jul 1965

U.S.A., Oregon, Klamath County:
5 miles south of Fort Klamath.

In shallow ditch. Phenology: Vegetative. Origin: Native.

J. William Thompson 380    13 Aug 1925

U.S.A., Oregon, Lane County:
Miller's Arm, Siltcoos Lake.

Submersed. Phenology: Vegetative. Origin: Native.

A. N. Steward s.n.    29 Nov 1951

U.S.A., Montana, Missoula County:
Swan River 5 miles north of outlet of Lindberg Lake.
47.469743°, -113.725688°. Datum: WGS 84. Coordinate uncertainty: 5000 meters. Georeferenced by Joseph Stormer. Coordinate Source: Digital Map.

Quiet pool. Sepals purplish, about 2 millimeters long. Phenology: Flowers. Origin: Native.

C. L. Hitchcock 13712    22 Aug 1945
with C. V. Muhlick

Canada, British Columbia
Queen Charlotte Islands; East end of Skidgate Lake, Moresby Island.

In 1.5-2 feet of water along shoreline of lake (muddy-bottomed). Phenology: Vegetative. Origin: Native.

J. A. Calder 23414    12 Aug 1957
with R. L. Taylor

U.S.A., Oregon, Multnomah County:
Burlington Bottoms Natural Area, east of Burlington. Pond north of entrance road.
Elev. 50 ft. T2N R1W S20 E 1/2. Datum: NAD 27. Coordinate uncertainty: 805 meters. Georeferenced by Ben Legler. Coordinate Source: TRS2LL.

Submerged in central pond. Phenology: Vegetative. Origin: Native.

John A. Christy 7117    14 Jul 1989

U.S.A., Washington, Skagit County:
Grandy Lake, along Baker Lake Road 4 miles NE of junction with Hwy 20.
Elev. 623 ft. 48° 33.937' N, 121° 48.286' W. Datum: WGS 84. Coordinate uncertainty: 8 meters.

Shallow lake with soft bottom, marshy vegetation around edge, and cold clear spring on north end; surrounded by conifer forest. Plants very abundant, carpeting bottom in shallow water. Phenology: Vegetative. Origin: Native.

Ben Legler 2325    3 Sep 2004
with David Giblin, Tad Dilhoff

U.S.A., Washington, King County:
Star Lake.
47.3551° N, 122.2875° W.

Origin: Native.

Steve Majerick s.n.    22 Aug 1996
with Wendy Cooke

U.S.A., Washington, King County:
Star Lake.
47.3551° N, 122.2875° W.

Origin: Native.

Steve Majerick     5 Aug 1994
with Sharon Walton

U.S.A., Washington, King County:
Shadow Lake.
47.4059° N, 122.087° W.

Phenology: Vegetative. Origin: Native.

Steve Majerick     23 Aug 1996
with Wendy Cooke

U.S.A., Washington, King County:
Shadow Lake.
47.4059° N, 122.087° W.

Phenology: Vegetative. Origin: Native.

Del Field     26 Jul 1994
with Steve Majerick

U.S.A., Washington, King County:
Meridian Lake.
47.3631° N, 122.1538° W.

Phenology: Vegetative. Origin: Native.

Del Field     1 Aug 1994
with Nicholas Altieri

U.S.A., Washington, Cowlitz County:
Along Highway 504 on northeast side of Silver Lake, in an embayment cut off from rest of lake by built-up road bed, 1/2 mile west of Silver Lake Cemetery.
Elev. 492 ft. 46° 19.095' N, 122° 46.551' W. Datum: NAD 27. Coordinate Source: GPS.

Boggy embayment with Typha, Spiraea, Nuphar, Potomogeton, Utricularia, Salix geyeriana. Common; submerged. Phenology: Vegetative. Origin: Native.

Ben Legler 3035    31 Aug 2005
with Peter F. Zika, David Giblin

U.S.A., Washington, King County:
Lucerne/Pipe Lake.
47.368° N, 122.0517° W.

Latitude and Longitude for Pipe Lake is 47.3660N and 122.0604W. Phenology: Vegetative. Origin: Native.

Del Field     23 Aug 1994
with Steve Majerick

U.S.A., Washington, King County:
North Lake.
47.3052° N, 122.2906° W.

Water Weed/ Phenology: Vegetative. Origin: Native.

Del Field s.n.    26 Jul 1995
with Steve Majerick, Cassandra Robertson

U.S.A., Washington, King County:
Cottage Lake.
47.754° N, 122.087° W.

Phenology: Vegetative. Origin: Native.

Del Field     31 Jul 1995
with Chuck Eberhart, Steve Majerick

U.S.A., Washington, King County:
Geneva Lake.
47.2913° N, 122.2817° W.

Phenology: Vegetative. Origin: Native.

Steve Majerick     26 Aug 1996
with Wendy Cooke

U.S.A., Washington, King County:
Kathleen Lake.
47.4783° N, 122.0881° W.

Phenology: Vegetative. Origin: Native.

Del Field     17 Aug 1995
with Steve Majerick

U.S.A., Washington, King County:
Walker Lake.
47.2642° N, 121.9089° W.

Phenology: Vegetative. Origin: Native.

Del Field     23 Aug 1995
with Steve Majerick

U.S.A., Washington, King County:
Bass Lake.
47.2548° N, 121.996° W.

Phenology: Vegetative. Origin: Native.

Del Field     25 Jul 1995
with Steve Majerick

U.S.A., Washington, King County:
Deep Lake.
47.2736° N, 121.94° W.

Phenology: Vegetative. Origin: Native.

Del Field     28 Aug 1995
with Steve Majerick

U.S.A., Washington, King County:
Holm (Neilson) Lake.
47.3032° N, 122.127° W.

Phenology: Vegetative. Origin: Native.

Del Field     26 Aug 1994
with Kathy Culver, Steve Majerick

U.S.A., Washington, King County:
Five Mile Lake.
47.2724° N, 122.2863° W.

Phenology: Vegetative. Origin: Native.

Steve Majerick     26 Aug 1996
with Wendy Cooke

U.S.A., Washington, King County:
Trout Lake.
47.2662° N, 122.28° W.

Phenology: Vegetative. Origin: Native.

Steve Majerick     26 Aug 1996
with Wendy Cooke

U.S.A., Washington, King County:
Twelve Lake.
47.3254° N, 121.9764° W.

Phenology: Vegetative. Origin: Native.

Bill Priest     20 Jul 1995
with Steve Majerick, Janice Dugen

U.S.A., Washington, King County:
McDonald Lake.
47.4716° N, 122.0773° W.

Phenology: Vegetative. Origin: Native.

Del Field     16 Aug 1995
with Steve Majerick

U.S.A., Washington, Snohomish County:
Along north shore of Stillaguamish River 1.9 air miles west of Arlington; in old side channel of river.
Elev. 37 ft. 48° 11' 34" N, 122° 10' 1" W. Datum: WGS 84. Coordinate Source: Digital map.

Still shallow water in silty side channel; floods in winter. Common, forming large submerged patches; sterile. Phenology: Vegetative. Origin: Native.

Ben Legler 3682    15 Sep 2006

U.S.A., Washington, Pend Oreille County:
Colville National Forest. Lake Leo boat ramp, northwest side of lake.
Elev. 3280 ft. 48.6495° N, 117.496° W. Datum: WGS 84. Coordinate uncertainty: 5 meters. Coordinate Source: GPS.

Mix of sandy and silty lake bottom; water to 1 meter deep; shoreline and shallow water dominated by Carex uliginosa and Spiraea douglasii. Dominant aquatic species in water less than 1 meter deep. Phenology: Vegetative. Origin: Native.

David Giblin 1158    6 Sep 2007
with Joe Arnett

U.S.A., Washington, Stevens County:
Colville National Forest. Little Twin Lakes.
Elev. 3696 ft. 48.5748° N, 117.644° W. Datum: WGS 84.

Shallow water with soft muck bottom and adjacent shoreline. Brasenia schreberi dominant. Common in shallow water throughout lake. Phenology: Fertile. Origin: Native.

Joe Arnett 07-113    4 Sep 2007
with David Giblin

U.S.A., Washington, Pend Oreille County:
Colville National Forest. Lake Leo shoreline and aquatic areas south of end of Forest Road 513, east side of lake.
Elev. 3280 ft. 48.6479° N, 117.492° W. Datum: WGS 84. Coordinate uncertainty: 19 meters. Coordinate Source: GPS.

Edge of lake and water to 1 meter deep; Carex lanuginosa dominant in water. Dominant species in water to 0.5 meters deep. Phenology: Fertile. Origin: Native.

Joe Arnett 07-136    6 Sep 2007
with David Giblin

U.S.A., Washington, Pend Oreille County:
Pend Oreille River, east of Route 20, north of mouth of Lost Creek.
Elev. 2066 ft. 48° 36.8' N, 117° 21.8' W; T36N R43E S15.

Near grassy west shore of reservoir, over granite, with Potamogeton crispus, Myriophyllum sibiricum. Floating in water. Phenology: Vegetative. Origin: Native.

Peter F. Zika 19518    9 May 2004

U.S.A., Washington, Kittitas County:
Locust Grove Farm, 15021 North Thorp Highway, Thorp.
Elev. 1685 ft. 47° 5.75' N, 120° 41.886' W; T19N R17E S34. Datum: WGS 84.

Flowing water in irrigation ditch. Other plants near ditch: Populus trichocarpa, Rosa woodsii, Cornus stolonifera, Clematis lingusticifolia. Flowers white; common. Phenology: Flowers. Origin: Native.

Don Knoke 978    5 Sep 2005

U.S.A., Washington, Walla Walla County:
Southeast shore of reservoir on Snake River, Lake Sacajawea, Charbonneau Park, 1.5 air miles east of Ice Harbor Dam.
Elev. 442 ft. 46° 15.4' N, 118° 50.8' W; T9N R32E S19.

With Potamogeton nodosus, Myriophyllum spicatum. Occasional aquatic near boatramp. Phenology: Vegetative. Origin: Native.

Peter F. Zika 22347    12 Sep 2005

U.S.A., Washington, Lincoln County:
U.S. Bureau of Land Management at Twin Lakes.
Elev. 1880 ft. 47.53065°, -118.5057°. Datum: WGS 84. Georeferenced by WTU Staff. Coordinate Source: GeoLocate.

Lake edge and riparian zone connecting the two lakes. Schoenoplectus and Veronica abundant and dominant in wet areas. Scabland/shrub-steppe community outside of riparian zone. Locally common near boat launch in water over 1 meter deep. Phenology: Vegetative. Origin: Native.

David Giblin 1936    27 Jun 2008

U.S.A., Washington, Adams County:
Herman Lake, along shoreline near boat ramp.
Elev. 944 ft. 46.89746° N, 119.19958° W. Datum: WGS 84. Coordinate uncertainty: 3 meters.

From 0.7 meters deep in lake to upland area adjacent to shoreline. Schoenoplectus acutus, Typha sp., and Juncus spp. dominant. Scattered along lake bottom in water to 0.5 meters deep. Phenology: Vegetative. Origin: Native.

David Giblin 2386    4 Sep 2008

U.S.A., Washington, Grant County:
Potholes Wildlife Area. Drainage slough west side of road, south side of slough. From roadside to 2 kilometers west of road.
Elev. 314 m. 47.08172° N, 119.34336° W. Datum: WGS 84. Coordinate uncertainty: 5 meters.

Shallow water of slough and adjacent sandy embankment up to 50 meters in from slough. Moisture gradient from saturated to dry and alkaline. Growing in shallow water of slough. Phenology: Vegetative. Origin: Native.

David Giblin 2334    29 Aug 2008

U.S.A., Washington, Wahkiakum County:
Julia Butler Hansen Refuge for Columbian White-tailed Deer. Steamboat Slough; bank of Columbia River just off road.
Elev. 22 ft. 46.24875° N, 123.43319° W. Datum: WGS 84.

Freshwater intertidal zone adjacent to road and disturbed roadside edge. Common and abundant in mucky soil of intertidal zone. Phenology: Vegetative. Origin: Native.

David Giblin 2492    8 Sep 2008
with Cathy Maxwell, Joe Arnett

U.S.A., Washington, Yakima County:
Unnamed pond at intersection of highways 12 and 410. Southwest quadrant of intersection.
Elev. 1607 ft. 46.7473° N, 120.78849° W. Datum: WGS 84. Coordinate uncertainty: 5 meters.

Shallow pond to 1.5 meters deep with Typha dominant along the periphery. Locally common in shallow water to 40 centimeters deep. Phenology: Vegetative. Origin: Native.

David Giblin 3108    14 Aug 2009
with Don Knoke