WTU:V
333641 J. Parsons s.n. 1994-05-24
U.S.A., Washington, Jefferson, Leland Lake. West end of lake, near outlet., 47.8881 -122.896
WTU:V
339231 P. F. Zika 14160 1999-08-31
U.S.A., Washington, Pacific, Ilwaco, shoreline of Black Lake, Route 101., 46.3064 -124.0366
WTU:V
342085 P. F. Zika 14642 1999-10-24
U.S.A., Washington, San Juan, Near pond on Turn Point, east shore of San Juan Island., 48.54111 -123.08472, 8m
WTU:V
314085 Scott R. Atkinson 238 1986-06-04
U.S.A., Washington, San Juan, San Juan Island; Turn Point vicinity, near public beach access, circa 1-1.5 miles southeast of Friday Harbor; pond north of access., 48.519928 -122.982098
WTU:V
163111 A. N. Steward s.n. 1951-09-29
U.S.A., Oregon, Lane, Miller's Arm, Siltcoos [sic: Siltcoose] Lake.
WTU:V
382761 Ben Legler 2363 2004-09-06
U.S.A., Washington, Skagit, South end of Big Lake, southeast of Mt. Vernon., 48.364444 -122.215833, 26m
WTU:V
373946 Peter F. Zika, David Giblin, Cathy Maxwell, Ben Legler 22279 2005-08-30
U.S.A., Washington, Pacific, Ilwaco. North end of Black Lake, east side of Sand Ridge Road., 46.32 -124.043333, 5m
WTU:V
364520 Susan Horton 2006-04-06
U.S.A., Washington, Island, Lone Lake, Whidbey Island, Washington., 48.0333 -122.4462
WTU:V
371500 P. F. Zika 11841 1992-08-08
U.S.A., Oregon, Lincoln, Southwest end of Devils Lake, near Inlet of Rock Creek, Lincoln City., 44.9647 -123.9986, 20m
WTU:V
396706 Nick Otting, Dick Brainerd 3447 2012-07-29
U.S.A., Oregon, Benton, Willamette Valley, Harkens Lake, a cut-off meander of the Willamette River, 3 air miles northeast of Monroe., 84m
WTU:V
418935 Ben Legler, Peter F. Zika 14326 2016-08-24
U.S.A., Washington, King, At dock on shoreline of Lake Washington at north end of Magnuson Park., 47.689241 -122.264544, 5m
WTU:V
409813 Peter F. Zika 28074 2016-07-12
U.S.A., Washington, King, Near mouth of Juanita Creek, Juanita Bay, Lake Washington, Juanita, Kirkland., 47.7041 -122.2178, 5m
WTU:V
412136 Peter F. Zika 28266 2016-08-14
U.S.A., Oregon, Clatsop, Sloughs on both sides of Route 101, near West Anderson Road, 0.9 air kilometers southeast of Sunset Lake, Warrington., 46.0808 -123.916, 8m
WTU:V
416704 Peter F. Zika, R.E.Brainerd, W. Messinger, Jason Spear 28576 2016-10-12
U.S.A., Oregon, Lane, East end of Kirk Road, near Coyote Creek, just north of Fern Ridge dam., 44.1198 -123.2904, 105m
WTU:V
Peter Dunwiddie, Rod Gilbert, Sarah Krock, Peter Zika PWD-16-256 2016-06-24
U.S.A., Washington, Pierce, JBLM, Artillary Impact Area, Mortar Point 3, Nisqually Lake vicinity., 47.02895 -122.62569, 82m
WTU:V
420154 David Giblin 6344 2018-09-11
U.S.A., Washington, Clark, Fallen Leaf Lake Park, Shoreline just west of picnic area., 45.60018 -122.40859, 65m
WTU:V
424041 Barbara L. Wilson, Richard Brainerd, Crystal Derbecq, Maya Goklany, Andy Niell 17231 2012-07-27
U.S.A., Oregon, Linn, Slough at south end of Browers Rock State Park., 44.628932 -123.163948, 55m
WTU:V
25398JWT J. William Thompson 7592 1931-07-24
U.S.A., Washington, King, Lake Washington, on Mercer Island., 47.57083 -122.22083
WTU:V
292105 W. J. Eyerdam 1428 1937-07-20
U.S.A., Washington, Pierce, Clover Creek., 47.15682 -122.528435
WTU:V
129757 C. F. Yocom s.n. 1947-08-15
U.S.A., Washington, Pend Oreille, Calispell Lake., 48.34389 -117.29944
WTU:V
340138 P. F. Zika 14108 1999-08-22
U.S.A., Washington, San Juan, Near dock on W shore of Egg Lake, Egg Lake Road, San Juan Island. SW 1/4 of SW 1/4., 48.566389 -123.067778, 49m
WTU:V
266086 E. F. Layser 1824 1971-08-00
U.S.A., Washington, Pend Oreille, Lake Thomas (in the Little Pend Oreille chain)., 48.62418 -117.49255
WTU:V
132706 C. F. Yocom s.n. 1947-08-11
U.S.A., Washington, Spokane, Little Spokane River., 47.794116 -117.534588
WTU:V
234025 C. L. Hitchcock 24127 1965-09-22
U.S.A., Washington, Thurston, Hicks Lake, 4 mi E of Olympia, near public access area., 47.038029 -122.814476
WTU:V
349004 Alison Colwell 99-12 1999-07-08
U.S.A., Washington, Ferry, Okanogan Valley: Swan Lake., 48.5178 -118.8363
WTU:V
313861 Scott R. Atkinson 209 1985-04-28
U.S.A., Washington, San Juan, Orcas Island; Cascade Lake, southeast of East Sound, east side of lake, near public dock/picnic area., 48.65 -122.865, 91m
WTU:V
266029 J. H. Christ 10635 1939-08-30
U.S.A., Idaho, Kootenai, Conkling Park., 47.40444 -116.75722
WTU:V
292145 W. J. Eyerdam s.n. 1937-10-17
U.S.A., Washington, King, Cottage Lake., 47.75361 -122.08694
WTU:V
348008 Orlin L. Ireland 537 1951-05-31
U.S.A., Oregon, Lane, Willamette River, east of crusher near Eugene.
WTU:V
26606 I. C. Otis 1713 1933-07-07
U.S.A., Washington, King, East side of Lake Sammamish., 47.64194 -122.07917
WTU:V
4456JWT I. C. Otis 1713 1933-07-07
U.S.A., Washington, King, East side of Lake Sammamish., 47.64194 -122.07917
WTU:V
34255 C. V. Piper s.n. 1898-09-00
U.S.A., Washington, King, Green Lake, Seattle., 47.681673 -122.340866
WTU:V
24991JWT Morton E. Peck 15742 1927-07-19
U.S.A., Oregon, Deschutes, Bend., 44.058173 -121.31531
WTU:V
2724 M. Bolger s.n. 1910-10-22
U.S.A., Washington, King, Seattle; Lake Washington., 47.60639 -122.33083
WTU:V
20164 M. W. Gorman s.n. 1988-05-20
U.S.A., Oregon, Columbia River bottoms.
WTU:V
207996 Quentin D. Clarkson s.n. 1952-11-21
U.S.A., Oregon, Benton, Corvallis Sand and Gravel Company; Along Willamette River.
WTU:V
215788 J. A. Calder, K. T. MacKay 29825 1961-05-30
Canada, British Columbia, Vancouver Island; Dougan Lake along Nanimo-Victoria highway about 4 miles north of Shawnigan Lake.
WTU:V
223392 C. L. Hitchcock 23993 1965-07-11
U.S.A., Montana, Lake, 1 mile south of Nine-Pipes Reservoir.
WTU:V
25399JWT J. William Thompson 380 1925-08-13
U.S.A., Oregon, Klamath, 5 miles south of Fort Klamath.
WTU:V
151278 A. N. Steward s.n. 1951-11-29
U.S.A., Oregon, Lane, Miller's Arm, Siltcoos Lake.
WTU:V
98126 C. L. Hitchcock, C. V. Muhlick 13712 1945-08-22
U.S.A., Montana, Missoula, Swan River 5 miles north of outlet of Lindberg Lake., 47.469743 -113.725688
WTU:V
12976JWT Fred A. Barkley, J. Kramer 1914 1937-09-07
U.S.A., Montana, Missoula, Highway bridge across the Bitterroot River, four miles southwest of Missoula.
WTU:V
253360 J. A. Calder, R. L. Taylor 23414 1957-08-12
Canada, British Columbia, Queen Charlotte Islands; East end of Skidgate Lake, Moresby Island.
WTU:V
337451 John A. Christy 7117 1989-07-14
U.S.A., Oregon, Multnomah, Burlington Bottoms Natural Area, east of Burlington. Pond north of entrance road., 45.6429 -122.8312, 15m
WTU:V
358416 Joy Mastrogiuseppe, Darrell Pock 6596 1991-09-25
U.S.A., Washington, Yakima, Priest Rapids Reservoir. Along west river shore., 46.63889 -119.91944
WTU:V
364573 Ben Legler, David Giblin, Tad Dilhoff 2325 2004-09-03
U.S.A., Washington, Skagit, Grandy Lake, along Baker Lake Road 4 miles NE of junction with Hwy 20., 48.565617 -121.804767, 190m
WTU:V
363868 Steve Majerick, Wendy Cooke s.n. 1996-08-22
U.S.A., Washington, King, Star Lake., 47.3551 -122.2875
WTU:V
363869 Steve Majerick, Sharon Walton 1994-08-05
U.S.A., Washington, King, Star Lake., 47.3551 -122.2875
WTU:V
363857 Steve Majerick, Wendy Cooke 1996-08-23
U.S.A., Washington, King, Shadow Lake., 47.4059 -122.087
WTU:V
363856 Del Field, Steve Majerick 1994-07-26
U.S.A., Washington, King, Shadow Lake., 47.4059 -122.087
WTU:V
363846 Del Field, Nicholas Altieri 1994-08-01
U.S.A., Washington, King, Meridian Lake., 47.3631 -122.1538
WTU:V
373749 Ben Legler, Peter F. Zika, David Giblin 3035 2005-08-31
U.S.A., Washington, Cowlitz, 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., 46.31825 -122.77585, 150m
WTU:V
Peter F. Zika, David Giblin, Cathy Maxwell, Ben Legler 22265 2005-08-30
U.S.A., Washington, Wahkiakum, East shore of Deep River near mouth, 1 air mile northwest of Miller Point; Grays Bay, Columbia River., 46.311667 -123.713333, 2m
WTU:V
363962 Del Field, Steve Majerick 1994-08-23
U.S.A., Washington, King, Lucerne/Pipe Lake., 47.368 -122.0517
WTU:V
363979 Del Field, Steve Majerick, Cassandra Robertson s.n. 1995-07-26
U.S.A., Washington, King, North Lake., 47.3052 -122.2906
WTU:V
364030 Del Field, Chuck Eberhart, Steve Majerick 1995-07-31
U.S.A., Washington, King, Cottage Lake., 47.754 -122.087
WTU:V
364047 Steve Majerick, Wendy Cooke 1996-08-26
U.S.A., Washington, King, Geneva Lake., 47.2913 -122.2817
WTU:V
363991 Del Field, Steve Majerick 1995-08-17
U.S.A., Washington, King, Kathleen Lake., 47.4783 -122.0881
WTU:V
364001 Del Field, Steve Majerick 1995-08-23
U.S.A., Washington, King, Walker Lake., 47.2642 -121.9089
WTU:V
364126 Del Field, Steve Majerick 1995-07-25
U.S.A., Washington, King, Bass Lake., 47.2548 -121.996
WTU:V
364136 Del Field, Steve Majerick 1995-08-28
U.S.A., Washington, King, Deep Lake., 47.2736 -121.94
WTU:V
364057 Del Field, Kathy Culver, Steve Majerick 1994-08-26
U.S.A., Washington, King, Holm (Neilson) Lake., 47.3032 -122.127
WTU:V
364077 Steve Majerick, Wendy Cooke 1996-08-26
U.S.A., Washington, King, Five Mile Lake., 47.2724 -122.2863
WTU:V
364090 Steve Majerick, Wendy Cooke 1996-08-26
U.S.A., Washington, King, Trout Lake., 47.2662 -122.28
WTU:V
364106 Bill Priest, Steve Majerick, Janice Dugen 1995-07-20
U.S.A., Washington, King, Twelve Lake., 47.3254 -121.9764
WTU:V
364158 Del Field, Steve Majerick 1995-08-16
U.S.A., Washington, King, McDonald Lake., 47.4716 -122.0773
WTU:V
367416 Ben Legler 3682 2006-09-15
U.S.A., Washington, Snohomish, Along north shore of Stillaguamish River 1.9 air miles west of Arlington; in old side channel of river., 48.192778 -122.166944, 11m
WTU:V
379521 David Giblin, Joe Arnett 1158 2007-09-06
U.S.A., Washington, Pend Oreille, Colville National Forest. Lake Leo boat ramp, northwest side of lake., 48.6495 -117.496, 1000m
WTU:V
379810 Joe Arnett, David Giblin 07-113 2007-09-04
U.S.A., Washington, Stevens, Colville National Forest. Little Twin Lakes., 48.5748 -117.644, 1127m
WTU:V
379562 Joe Arnett, David Giblin 07-136 2007-09-06
U.S.A., Washington, Pend Oreille, Colville National Forest. Lake Leo shoreline and aquatic areas south of end of Forest Road 513, east side of lake., 48.6479 -117.492, 1000m
WTU:V
368896 Peter F. Zika 19518 2004-05-09
U.S.A., Washington, Pend Oreille, Pend Oreille River, east of Route 20, north of mouth of Lost Creek., 48.613333 -117.363333, 630m
WTU:V
370376 Don Knoke 978 2005-09-05
U.S.A., Washington, Kittitas, Locust Grove Farm, 15021 North Thorp Highway, Thorp., 47.095833 -120.6981, 514m
WTU:V
370068 Peter F. Zika 22347 2005-09-12
U.S.A., Washington, Walla Walla, Southeast shore of reservoir on Snake River, Lake Sacajawea, Charbonneau Park, 1.5 air miles east of Ice Harbor Dam., 46.256667 -118.846667, 135m
WTU:V
380541 David Giblin 1936 2008-06-27
U.S.A., Washington, Lincoln, U.S. Bureau of Land Management at Twin Lakes., 47.53065 -118.5057, 573m
WTU:V
381143 David Giblin 2386 2008-09-04
U.S.A., Washington, Adams, Herman Lake, along shoreline near boat ramp., 46.89746 -119.19958, 288m
WTU:V
380325 David Giblin 2334 2008-08-29
U.S.A., Washington, Grant, Potholes Wildlife Area. Drainage slough west side of road, south side of slough. From roadside to 2 kilometers west of road., 47.08172 -119.34336, 314m
WTU:V
400966 David Giblin, Cathy Maxwell, Joe Arnett 2492 2008-09-08
U.S.A., Washington, Wahkiakum, Julia Butler Hansen Refuge for Columbian White-tailed Deer. Steamboat Slough; bank of Columbia River just off road., 46.24875 -123.43319, 7m
WTU:V
388835 David Giblin, Don Knoke 3108 2009-08-14
U.S.A., Washington, Yakima, Unnamed pond at intersection of highways 12 and 410. Southwest quadrant of intersection., 46.7473 -120.78849, 490m
WTU:V
401335 David Giblin 3270 2009-09-30
U.S.A., Washington, Franklin, Scootenay Reservoir. Southeast area near boat launch with Populus tremuloides trees., 46.69994 -119.0232, 283m
WTU:V
392860 David Giblin 3196 2009-09-02
U.S.A., Washington, Mason, Isabella Lake. Accessed by public park on Delight Park Road., 47.17167 -123.10949, 43m
WTU:V
396285 Jeff Walker, Ben Legler, David Giblin 523 2010-08-24
U.S.A., Washington, Island, Deception Pass State Park. Cranberry Lake. Wetland area on west side of lake just south of bathing area., 48.3949 -122.6609, 1m
WTU:V
403961 Ben Legler 12938 2013-09-02
U.S.A., Washington, Whatcom, Ross Lake National Recreation Area: in drawdown of Gorge Lake on upstream side of where Highway 20 crosses lake., 48.713326 -121.157857, 233m
WTU:V
410341 Katie Messick, Ben Legler, Don Knoke, Wendy McClure 2013-45 2013-07-14
U.S.A., Oregon, Deschutes, At north end of Crane Reservoir where Deschutes River enters reservoir., 43.81001 -121.77676, 1330m
WTU:V
400546 Barbara L. Wilson, Nick Otting 16932 2011-09-12
U.S.A., Oregon, Grant, Trout Farm Campground, Malheur National Forest., 44.305147 -118.552713, 1479m
WTU:V
407726 Ben Legler, Sara Legler 13347 2014-09-22
U.S.A., Washington, Lewis, Mt. Adams Veneer Company Mill Pond on east side of Road 25, 2.5 km due south of Randle., 46.512712 -121.953542, 259m
WTU:V
409812 Peter F. Zika 28010 2016-07-03
U.S.A., Oregon, Jefferson, East bank of Deschutes River, 120 meters upstream of Salmon Falls., 44.4145 -121.2899, 705m
WTU:V
412207 Peter F. Zika 28366 2016-08-30
Canada, British Columbia, North end of Nancy Greene Lake, near boat launch, campground, and junction of Routes 3 and 3B, 21 air kilometers southwest of Castlegar, Monashee Mountains, Kootenay Land District., 49.2581 -117.94166, 1265m
WTU:V
416493 Peter F. Zika 29053 2017-08-19
U.S.A., Oregon, Gilliam, South shore of Lake Umatilla reservoir on Columbia River, near Blalock Canyon boat ramp, north of Interstate 84, 13.5 air kilometers west-southwest of Arlington., 45.6962 -120.3724, 80m
WTU:V
411646 Kathy Ahlenslager, Robert Bursik 409 1994-06-23
U.S.A., Washington, Spokane, Spokane; Three Springs Natural Area on the Spokane River., 47.698192 -117.329723
WTU:V
411644 Kathy Ahlenslager 629 2000-07-25
U.S.A., Washington, Pend Oreille, Colville National Forest, along the Pend Oreille River about 19 miles south of Ione. From Ione take County Road #9345 East across the river, then continue south on County Road #9325 about 19 miles. Plants grow in the river., 48.466063 -117.417189, 637m
WTU:V
411645 Jean Wood 3407 1995-08-14
U.S.A., Washington, Pend Oreille, Western Colville National Forest and Vicinity: Little Pend Oreille Lakes, circa 20 air miles northeast of Colville along south shore of Lake Leo, along Washington Highway 20., 48.732023 -117.492915, 965m
WTU:V
417606 Dominic Maze 389 2016-09-11
U.S.A., Oregon, Multnomah, Columbia River. South shore. Beach upstream of James Gleason Boat Ramp., 45.5023 -122.5922
WTU:V
417520 Dominic Maze 371 2016-07-04
U.S.A., Oregon, Multnomah, Blue Lake, 45.5542 -122.4453
WTU:V
419838 David Giblin 6272 2018-08-28
U.S.A., Washington, Clallam, Olympic National Forest. Beaver Lake., 48.1137 -124.24568, 182m
WTU:V
419847 David Giblin 6340 2018-08-29
U.S.A., Washington, Jefferson, Crocker Lake at Washington Department of Fish and Wildlife access area near boat ramp., 47.93605 -122.88454, 57m
WTU:V
445699 Peter W. Dunwiddie, Peter Zika, Sarah Krock PWD 16-371 2016-07-13
U.S.A., Washington, Pierce, JBLM, TA-12, Chambers Lake., 47.01395 -122.53185, 98m
WTU:V
373997 Peter F. Zika, David Giblin, Cathy Maxwell, Ben Legler. 22265 2005-08-30
U.S.A., Washington, Wahkiakum, East shore of Deep River near mouth, 1 air mile northwest of Miller Point; Grays Bay, Columbia River., 46.311667 -123.713333, 2m
WTU:V
Peter F. Zika, Peter Dunwiddie PWD-19-323 2019-07-30
U.S.A., Oregon, Wasco, Deschutes River Recreation Area, Heritage Landing., 45.633326 -120.914858, 53m
WTU:V
Peter F. Zika, Peter Dunwiddie PWD-19-524 2019-08-10
U.S.A., Washington, Walla Walla, McNary National Wildlife Refuge, Villard Ponds, Burbank Slough Unit., 46.19307 -119.02046
WTU:V
423942 P. F. Zika 30469 2020-10-26
U.S.A., Washington, Benton, W shore of Columbia River, near N end of Nelson Island, Richmond., 46.3093 -119.2623, 100m