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Field Descriptions
82 matching records found.
Label Query: Genus = "Elodea", Species = "canadensis"
Hydrocharitaceae
1. Elodea canadensis Rich.
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.
WTU 25398JWT
J. William Thompson 7592    24 Jul 1931
1. Elodea canadensis Rich.
Database ID
19868 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
25398JWT 
Barcode
 
Other Numbers
 
Family
Hydrocharitaceae 
Name on Specimen
Elodea canadensis Rich. 
Accepted Name
Elodea canadensis Michx. 
Annotation History
1. Elodea canadensis Rich.  
Type Notes
 
Collector
J. William Thompson 
Collection #
7592 
Other Collectors
 
Date Collected
24 Jul 1931 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
King 
Locality
Lake Washington, on Mercer Island. 
Elevation
 
Coordinates
47.57083°, -122.22083° 
Site Description
Submerged in shallow water. 
Specimen Notes
 
Phenology
 
Origin
Native 
Cultivated?
No 
Imaged?
Yes 

Hydrocharitaceae
2. Elodea canadensis Rich.
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.
WTU 292105
W. J. Eyerdam 1428    20 Jul 1937
2. Elodea canadensis Rich.
Database ID
19869 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
292105 
Barcode
 
Other Numbers
 
Family
Hydrocharitaceae 
Name on Specimen
Elodea canadensis Rich. 
Accepted Name
Elodea canadensis Michx. 
Annotation History
1. Elodea canadensis Rich.  
Type Notes
 
Collector
W. J. Eyerdam 
Collection #
1428 
Other Collectors
 
Date Collected
20 Jul 1937 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Pierce 
Locality
Clover Creek. 
Elevation
 
Coordinates
47.15682°, -122.528435° 
Site Description
In mud. 
Specimen Notes
 
Phenology
 
Origin
Native 
Cultivated?
No 
Imaged?
Yes 

Hydrocharitaceae
3. Elodea canadensis Rich.
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.
WTU 129757
C. F. Yocom s.n.    15 Aug 1947
3. Elodea canadensis Rich.
Database ID
19870 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
129757 
Barcode
 
Other Numbers
 
Family
Hydrocharitaceae 
Name on Specimen
Elodea canadensis Rich. 
Accepted Name
Elodea canadensis Michx. 
Annotation History
1. Elodea canadensis Rich.  
Type Notes
 
Collector
C. F. Yocom 
Collection #
s.n. 
Other Collectors
 
Date Collected
15 Aug 1947 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Pend Oreille 
Locality
Calispell Lake. 
Elevation
 
Coordinates
48.34389°, -117.29944° 
Site Description
 
Specimen Notes
 
Phenology
 
Origin
Native 
Cultivated?
No 
Imaged?
Yes 

Hydrocharitaceae
4. Elodea canadensis Rich.
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.
WTU 340138
P. F. Zika 14108    22 Aug 1999
4. Elodea canadensis Rich.
Database ID
19871 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
340138 
Barcode
 
Other Numbers
 
Family
Hydrocharitaceae 
Name on Specimen
Elodea canadensis Rich. 
Accepted Name
Elodea canadensis Michx. 
Annotation History
1. Elodea canadensis Rich.  
Type Notes
 
Collector
P. F. Zika 
Collection #
14108 
Other Collectors
 
Date Collected
22 Aug 1999 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
San Juan  
Locality
Near dock on W shore of Egg Lake, Egg Lake Road, San Juan Island. SW 1/4 of SW 1/4. 
Elevation
160 ft. 
Coordinates
T36N R3W S33 SW 
Site Description
Small moist meadow near pond. 
Specimen Notes
 
Phenology
 
Origin
Native 
Cultivated?
No 
Imaged?
Yes 

Hydrocharitaceae
5. Elodea canadensis Rich.
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.
WTU 266086
E. F. Layser 1824     Aug 1971
5. Elodea canadensis Rich.
Database ID
19872 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
266086 
Barcode
 
Other Numbers
 
Family
Hydrocharitaceae 
Name on Specimen
Elodea canadensis Rich. 
Accepted Name
Elodea canadensis Michx. 
Annotation History
1. Elodea canadensis Rich.
    Annotated by E. F. Layser.  
Type Notes
 
Collector
E. F. Layser 
Collection #
1824 
Other Collectors
 
Date Collected
Aug 1971 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Pend Oreille 
Locality
Lake Thomas (in the Little Pend Oreille chain). 
Elevation
 
Coordinates
48.62418°, -117.49255° 
Site Description
 
Specimen Notes
 
Phenology
 
Origin
Native 
Cultivated?
No 
Imaged?
Yes 

Hydrocharitaceae
6. Elodea canadensis Rich.
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.
WTU 132706
C. F. Yocom s.n.    11 Aug 1947
6. Elodea canadensis Rich.
Database ID
19873 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
132706 
Barcode
 
Other Numbers
 
Family
Hydrocharitaceae 
Name on Specimen
Elodea canadensis Rich. 
Accepted Name
Elodea canadensis Michx. 
Annotation History
1. Elodea canadensis Rich.  
Type Notes
 
Collector
C. F. Yocom 
Collection #
s.n. 
Other Collectors
 
Date Collected
11 Aug 1947 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Spokane 
Locality
Little Spokane River. 
Elevation
 
Coordinates
47.794116°, -117.534588° 
Site Description
 
Specimen Notes
 
Phenology
 
Origin
Native 
Cultivated?
No 
Imaged?
Yes 

Hydrocharitaceae
7. Elodea canadensis Rich.
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.
WTU 234025
C. L. Hitchcock 24127    22 Sep 1965
7. Elodea canadensis Rich.
Database ID
19874 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
234025 
Barcode
 
Other Numbers
 
Family
Hydrocharitaceae 
Name on Specimen
Elodea canadensis Rich. 
Accepted Name
Elodea canadensis Michx. 
Annotation History
1. Elodea canadensis Rich.  
Type Notes
 
Collector
C. L. Hitchcock 
Collection #
24127 
Other Collectors
 
Date Collected
22 Sep 1965 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Thurston 
Locality
Hicks Lake, 4 mi E of Olympia, near public access area. 
Elevation
 
Coordinates
47.038029°, -122.814476° 
Site Description
Growing in mud in shallow water. 
Specimen Notes
 
Phenology
 
Origin
Native 
Cultivated?
No 
Imaged?
Yes 

Hydrocharitaceae
8. Elodea canadensis Rich.
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.
WTU 349004
Alison Colwell 99-12    8 Jul 1999
8. Elodea canadensis Rich.
Database ID
22063 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
349004 
Barcode
 
Other Numbers
 
Family
Hydrocharitaceae 
Name on Specimen
Elodea canadensis Rich. 
Accepted Name
Elodea canadensis Michx. 
Annotation History
1. Elodea canadensis Rich.
    8 1999.  
Type Notes
 
Collector
Alison Colwell 
Collection #
99-12 
Other Collectors
 
Date Collected
8 Jul 1999 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Ferry 
Locality
Okanogan Valley: Swan Lake. 
Elevation
 
Coordinates
T35N R32E S20 
Site Description
 
Specimen Notes
Submerged at edge of lake by boat dock. 
Phenology
Vegetative 
Origin
Native 
Cultivated?
No 
Imaged?
Yes 

Hydrocharitaceae
9. Elodea canadensis Rich.
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.
WTU 313861
Scott R. Atkinson 209    28 Apr 1985
9. Elodea canadensis Rich.
Database ID
29108 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
313861 
Barcode
 
Other Numbers
 
Family
Hydrocharitaceae 
Name on Specimen
Elodea canadensis Rich. 
Accepted Name
Elodea canadensis Michx. 
Annotation History
1. Elodea canadensis Rich.  
Type Notes
 
Collector
Scott R. Atkinson 
Collection #
209 
Other Collectors
 
Date Collected
28 Apr 1985 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
San Juan 
Locality
Orcas Island; Cascade Lake, southeast of East Sound, east side of lake, near public dock/picnic area. 
Elevation
300 ft. 
Coordinates
48.65°, -122.865° 
Site Description
Muddy lake bottom, in 5 - 20 feet of water. 
Specimen Notes
Abundant. 
Phenology
Vegetative 
Origin
Native 
Cultivated?
No 
Imaged?
Yes 

Hydrocharitaceae
10. Elodea canadensis Rich.
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.
WTU 292145
W. J. Eyerdam s.n.    17 Oct 1937
10. Elodea canadensis Rich.
Database ID
34999 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
292145 
Barcode
 
Other Numbers
 
Family
Hydrocharitaceae 
Name on Specimen
Elodea canadensis Rich. 
Accepted Name
Elodea canadensis Michx. 
Annotation History
1. Elodea canadensis Rich.  
Type Notes
 
Collector
W. J. Eyerdam 
Collection #
s.n. 
Other Collectors
 
Date Collected
17 Oct 1937 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
King 
Locality
Cottage Lake. 
Elevation
 
Coordinates
47.75361°, -122.08694° 
Site Description
In mud, 5 feet depth. 
Specimen Notes
 
Phenology
Vegetative 
Origin
Native 
Cultivated?
No 
Imaged?
Yes 

Hydrocharitaceae
11. Elodea canadensis Rich.
U.S.A., Oregon, Lane County:
Willamette River, east of crusher near Eugene.
Aquatic. Phenology: Vegetative. Origin: Native.
WTU 348008
Orlin L. Ireland 537    31 May 1951
11. Elodea canadensis Rich.
Database ID
35001 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
348008 
Barcode
 
Other Numbers
 
Family
Hydrocharitaceae 
Name on Specimen
Elodea canadensis Rich. 
Accepted Name
Elodea canadensis Michx. 
Annotation History
1. Elodea canadensis Rich.
    Annotated by Ken Davis, 20 2002.  
Type Notes
 
Collector
Orlin L. Ireland 
Collection #
537 
Other Collectors
 
Date Collected
31 May 1951 
Verbatim Date
 
Country
U.S.A. 
State or Province
Oregon 
County
Lane 
Locality
Willamette River, east of crusher near Eugene. 
Elevation
 
Coordinates
 
Site Description
 
Specimen Notes
Aquatic. 
Phenology
Vegetative 
Origin
Native 
Cultivated?
No 
Imaged?
Yes 

Hydrocharitaceae
12. Elodea canadensis Rich.
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.
WTU 26606
I. C. Otis 1713    7 Jul 1933
12. Elodea canadensis Rich.
Database ID
35004 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
26606 
Barcode
 
Other Numbers
 
Family
Hydrocharitaceae 
Name on Specimen
Elodea canadensis Rich. 
Accepted Name
Elodea canadensis Michx. 
Annotation History
1. Elodea canadensis Rich.  
Type Notes
 
Collector
I. C. Otis 
Collection #
1713 
Other Collectors
 
Date Collected
7 Jul 1933 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
King 
Locality
East side of Lake Sammamish. 
Elevation
 
Coordinates
47.64194°, -122.07917° 
Site Description
 
Specimen Notes
 
Phenology
Vegetative 
Origin
Native 
Cultivated?
No 
Imaged?
Yes 

Hydrocharitaceae
13. Elodea canadensis Rich.
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.
WTU 4456JWT
I. C. Otis 1713    7 Jul 1933
13. Elodea canadensis Rich.
Database ID
35005 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
4456JWT 
Barcode
 
Other Numbers
 
Family
Hydrocharitaceae 
Name on Specimen
Elodea canadensis Rich. 
Accepted Name
Elodea canadensis Michx. 
Annotation History
1. Elodea canadensis Rich.  
Type Notes
 
Collector
I. C. Otis 
Collection #
1713 
Other Collectors
 
Date Collected
7 Jul 1933 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
King 
Locality
East side of Lake Sammamish. 
Elevation
 
Coordinates
47.64194°, -122.07917° 
Site Description
 
Specimen Notes
 
Phenology
Vegetative 
Origin
Native 
Cultivated?
No 
Imaged?
Yes 

Hydrocharitaceae
14. Elodea canadensis Rich.
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.
WTU 34255
C. V. Piper s.n.     Sep 1898
14. Elodea canadensis Rich.
Database ID
35009 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
34255 
Barcode
 
Other Numbers
 
Family
Hydrocharitaceae 
Name on Specimen
Elodea canadensis Rich. 
Accepted Name
Elodea canadensis Michx. 
Annotation History
1. Elodea canadensis Rich.  
Type Notes
 
Collector
C. V. Piper 
Collection #
s.n. 
Other Collectors
 
Date Collected
Sep 1898 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
King 
Locality
Green Lake, Seattle. 
Elevation
 
Coordinates
47.681673°, -122.340866° 
Site Description
 
Specimen Notes
 
Phenology
Flowers 
Origin
Native 
Cultivated?
No 
Imaged?
Yes 

Hydrocharitaceae
15. Elodea canadensis Rich.
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.
WTU 24991JWT
Morton E. Peck 15742    19 Jul 1927
15. Elodea canadensis Rich.
Database ID
35012 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
24991JWT 
Barcode
 
Other Numbers
 
Family
Hydrocharitaceae 
Name on Specimen
Elodea canadensis Rich. 
Accepted Name
Elodea canadensis Michx. 
Annotation History
1. Elodea canadensis Rich.  
Type Notes
 
Collector
Morton E. Peck 
Collection #
15742 
Other Collectors
 
Date Collected
19 Jul 1927 
Verbatim Date
 
Country
U.S.A. 
State or Province
Oregon 
County
Deschutes 
Locality
Bend. 
Elevation
 
Coordinates
44.058173°, -121.31531° 
Site Description
River margin. 
Specimen Notes
 
Phenology
Vegetative 
Origin
Native 
Cultivated?
No 
Imaged?
Yes 

Hydrocharitaceae
16. Elodea canadensis Rich.
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.
WTU 2724
M. Bolger s.n.    22 Oct 1910
16. Elodea canadensis Rich.
Database ID
35013 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
2724 
Barcode
 
Other Numbers
 
Family
Hydrocharitaceae 
Name on Specimen
Elodea canadensis Rich. 
Accepted Name
Elodea canadensis Michx. 
Annotation History
1. Elodea canadensis Rich.  
Type Notes
 
Collector
M. Bolger 
Collection #
s.n. 
Other Collectors
 
Date Collected
22 Oct 1910 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
King 
Locality
Seattle; Lake Washington. 
Elevation
 
Coordinates
47.60639°, -122.33083° 
Site Description
 
Specimen Notes
 
Phenology
Vegetative 
Origin
Native 
Cultivated?
No 
Imaged?
Yes 

Hydrocharitaceae
17. Elodea canadensis Rich.
U.S.A., Oregon
Columbia River bottoms.
Ponds. Phenology: Vegetative. Origin: Native.
WTU 20164
M. W. Gorman s.n.    20 May 1988
17. Elodea canadensis Rich.
Database ID
35014 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
20164 
Barcode
 
Other Numbers
 
Family
Hydrocharitaceae 
Name on Specimen
Elodea canadensis Rich. 
Accepted Name
Elodea canadensis Michx. 
Annotation History
1. Elodea canadensis Rich.
    Annotated by M. W. Gorman.  
Type Notes
 
Collector
M. W. Gorman 
Collection #
s.n. 
Other Collectors
 
Date Collected
20 May 1988 
Verbatim Date
 
Country
U.S.A. 
State or Province
Oregon 
County
 
Locality
Columbia River bottoms. 
Elevation
 
Coordinates
 
Site Description
Ponds. 
Specimen Notes
 
Phenology
Vegetative 
Origin
Native 
Cultivated?
No 
Imaged?
Yes 

Hydrocharitaceae
18. Elodea canadensis Rich.
U.S.A., Oregon, Benton County:
Corvallis Sand and Gravel Company; Along Willamette River.
Gravel pit filled with water. Phenology: Vegetative. Origin: Native.
WTU 207996
Quentin D. Clarkson s.n.    21 Nov 1952
18. Elodea canadensis Rich.
Database ID
35017 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
207996 
Barcode
 
Other Numbers
 
Family
Hydrocharitaceae 
Name on Specimen
Elodea canadensis Rich. 
Accepted Name
Elodea canadensis Michx. 
Annotation History
1. Elodea canadensis Rich.  
Type Notes
 
Collector
Quentin D. Clarkson 
Collection #
s.n. 
Other Collectors
 
Date Collected
21 Nov 1952 
Verbatim Date
 
Country
U.S.A. 
State or Province
Oregon 
County
Benton 
Locality
Corvallis Sand and Gravel Company; Along Willamette River. 
Elevation
 
Coordinates
 
Site Description
Gravel pit filled with water. 
Specimen Notes
 
Phenology
Vegetative 
Origin
Native 
Cultivated?
No 
Imaged?
Yes 

Hydrocharitaceae
19. Elodea canadensis Rich.
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.
WTU 215788
J. A. Calder 29825    30 May 1961
with K. T. MacKay
19. Elodea canadensis Rich.
Database ID
35021 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
215788 
Barcode
 
Other Numbers
 
Family
Hydrocharitaceae 
Name on Specimen
Elodea canadensis Rich. 
Accepted Name
Elodea canadensis Michx. 
Annotation History
1. Elodea canadensis Rich.  
Type Notes
 
Collector
J. A. Calder 
Collection #
29825 
Other Collectors
K. T. MacKay 
Date Collected
30 May 1961 
Verbatim Date
 
Country
Canada 
State or Province
British Columbia 
County
 
Locality
Vancouver Island; Dougan Lake along Nanimo-Victoria highway about 4 miles north of Shawnigan Lake. 
Elevation
 
Coordinates
 
Site Description
In shallow water along margin of lake. 
Specimen Notes
Common. 
Phenology
Vegetative 
Origin
Native 
Cultivated?
No 
Imaged?
Yes 

Hydrocharitaceae
20. Elodea canadensis Rich.
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.
WTU 223392
C. L. Hitchcock 23993    11 Jul 1965
20. Elodea canadensis Rich.
Database ID
35022 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
223392 
Barcode
 
Other Numbers
 
Family
Hydrocharitaceae 
Name on Specimen
Elodea canadensis Rich. 
Accepted Name
Elodea canadensis Michx. 
Annotation History
1. Elodea canadensis Rich.  
Type Notes
 
Collector
C. L. Hitchcock 
Collection #
23993 
Other Collectors
 
Date Collected
11 Jul 1965 
Verbatim Date
 
Country
U.S.A. 
State or Province
Montana 
County
Lake 
Locality
1 mile south of Nine-Pipes Reservoir. 
Elevation
 
Coordinates
 
Site Description
In large "pothole" surrounded by Typha, water about 3 feet deep. 
Specimen Notes
 
Phenology
Vegetative 
Origin
Native 
Cultivated?
No 
Imaged?
Yes 

Hydrocharitaceae
21. Elodea canadensis Rich.
U.S.A., Oregon, Klamath County:
5 miles south of Fort Klamath.
In shallow ditch. Phenology: Vegetative. Origin: Native.
WTU 25399JWT
J. William Thompson 380    13 Aug 1925
21. Elodea canadensis Rich.
Database ID
35024 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
25399JWT 
Barcode
 
Other Numbers
 
Family
Hydrocharitaceae 
Name on Specimen
Elodea canadensis Rich. 
Accepted Name
Elodea canadensis Michx. 
Annotation History
1. Elodea canadensis Rich.  
Type Notes
 
Collector
J. William Thompson 
Collection #
380 
Other Collectors
 
Date Collected
13 Aug 1925 
Verbatim Date
 
Country
U.S.A. 
State or Province
Oregon 
County
Klamath 
Locality
5 miles south of Fort Klamath. 
Elevation
 
Coordinates
 
Site Description
In shallow ditch. 
Specimen Notes
 
Phenology
Vegetative 
Origin
Native 
Cultivated?
No 
Imaged?
Yes 

Hydrocharitaceae
22. Elodea canadensis Rich.
U.S.A., Oregon, Lane County:
Miller's Arm, Siltcoos Lake.
Submersed. Phenology: Vegetative. Origin: Native.
WTU 151278
A. N. Steward s.n.    29 Nov 1951
22. Elodea canadensis Rich.
Database ID
35027 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
151278 
Barcode
 
Other Numbers
 
Family
Hydrocharitaceae 
Name on Specimen
Elodea canadensis Rich. 
Accepted Name
Elodea canadensis Michx. 
Annotation History
1. Elodea canadensis Rich.
    Annotated by A. N. Steward.  
Type Notes
 
Collector
A. N. Steward 
Collection #
s.n. 
Other Collectors
 
Date Collected
29 Nov 1951 
Verbatim Date
 
Country
U.S.A. 
State or Province
Oregon 
County
Lane 
Locality
Miller's Arm, Siltcoos Lake. 
Elevation
 
Coordinates
 
Site Description
Submersed. 
Specimen Notes
 
Phenology
Vegetative 
Origin
Native 
Cultivated?
No 
Imaged?
Yes 

Hydrocharitaceae
23. Elodea canadensis Rich.
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.
WTU 98126
C. L. Hitchcock 13712    22 Aug 1945
with C. V. Muhlick
23. Elodea canadensis Rich.
Database ID
35029 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
98126 
Barcode
 
Other Numbers
 
Family
Hydrocharitaceae 
Name on Specimen
Elodea canadensis Rich. 
Accepted Name
Elodea canadensis Michx. 
Annotation History
1. Elodea canadensis Rich.  
Type Notes
 
Collector
C. L. Hitchcock 
Collection #
13712 
Other Collectors
C. V. Muhlick 
Date Collected
22 Aug 1945 
Verbatim Date
 
Country
U.S.A. 
State or Province
Montana 
County
Missoula 
Locality
Swan River 5 miles north of outlet of Lindberg Lake. 
Elevation
 
Coordinates
47.469743°, -113.725688° 
Site Description
Quiet pool. 
Specimen Notes
Sepals purplish, about 2 millimeters long. 
Phenology
Flowers 
Origin
Native 
Cultivated?
No 
Imaged?
Yes 

Hydrocharitaceae
24. Elodea canadensis Rich.
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.
WTU 253360
J. A. Calder 23414    12 Aug 1957
with R. L. Taylor
24. Elodea canadensis Rich.
Database ID
35032 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
253360 
Barcode
 
Other Numbers
 
Family
Hydrocharitaceae 
Name on Specimen
Elodea canadensis Rich. 
Accepted Name
Elodea canadensis Michx. 
Annotation History
1. Elodea canadensis Rich.  
Type Notes
 
Collector
J. A. Calder 
Collection #
23414 
Other Collectors
R. L. Taylor 
Date Collected
12 Aug 1957 
Verbatim Date
 
Country
Canada 
State or Province
British Columbia 
County
 
Locality
Queen Charlotte Islands; East end of Skidgate Lake, Moresby Island. 
Elevation
 
Coordinates
 
Site Description
In 1.5-2 feet of water along shoreline of lake (muddy-bottomed). 
Specimen Notes
 
Phenology
Vegetative 
Origin
Native 
Cultivated?
No 
Imaged?
Yes 

Hydrocharitaceae
25. Elodea canadensis Rich.
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.
WTU 337451
John A. Christy 7117    14 Jul 1989
25. Elodea canadensis Rich.
Database ID
35034 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
337451 
Barcode
 
Other Numbers
 
Family
Hydrocharitaceae 
Name on Specimen
Elodea canadensis Rich. 
Accepted Name
Elodea canadensis Michx. 
Annotation History
1. Elodea canadensis Rich.  
Type Notes
 
Collector
John A. Christy 
Collection #
7117 
Other Collectors
 
Date Collected
14 Jul 1989 
Verbatim Date
 
Country
U.S.A. 
State or Province
Oregon 
County
Multnomah 
Locality
Burlington Bottoms Natural Area, east of Burlington. Pond north of entrance road. 
Elevation
50 ft. 
Coordinates
T2N R1W S20 E 1/2 
Site Description
Submerged in central pond. 
Specimen Notes
 
Phenology
Vegetative 
Origin
Native 
Cultivated?
No 
Imaged?
Yes 

Hydrocharitaceae
26. Elodea canadensis Rich.
U.S.A., Washington, Yakima County:
Priest Rapids Reservoir. Along west river shore.
46.63889°, -119.91944°. Datum: WGS 84. Coordinate uncertainty: 10000 meters. Georeferenced by WTU Staff. Coordinate Source: GeoLocate.
Flood bar. Submerged. Phenology: Vegetative. Origin: Native.
WTU 358416
Joy Mastrogiuseppe 6596    25 Sep 1991
with Darrell Pock
26. Elodea canadensis Rich.
Database ID
70959 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
358416 
Barcode
 
Other Numbers
 
Family
Hydrocharitaceae 
Name on Specimen
Elodea canadensis Rich. 
Accepted Name
Elodea canadensis Michx. 
Annotation History
1. Elodea canadensis Rich.  
Type Notes
 
Collector
Joy Mastrogiuseppe 
Collection #
6596 
Other Collectors
Darrell Pock 
Date Collected
25 Sep 1991 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Yakima 
Locality
Priest Rapids Reservoir. Along west river shore. 
Elevation
 
Coordinates
46.63889°, -119.91944° 
Site Description
Flood bar. 
Specimen Notes
Submerged. 
Phenology
Vegetative 
Origin
Native 
Cultivated?
No 
Imaged?
No 

Hydrocharitaceae
27. Elodea canadensis Rich.
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.
WTU 364573
Ben Legler 2325    3 Sep 2004
with David Giblin, Tad Dilhoff
27. Elodea canadensis Rich.
Database ID
119479 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
364573 
Barcode
 
Other Numbers
 
Family
Hydrocharitaceae 
Name on Specimen
Elodea canadensis Rich. 
Accepted Name
Elodea canadensis Michx. 
Annotation History
1. Elodea canadensis Rich.
    Annotated by Ben Legler, 3 2006. Sources: Flora of PNW.  
Type Notes
 
Collector
Ben Legler 
Collection #
2325 
Other Collectors
David Giblin, Tad Dilhoff 
Date Collected
3 Sep 2004 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Skagit 
Locality
Grandy Lake, along Baker Lake Road 4 miles NE of junction with Hwy 20. 
Elevation
623 ft. 
Coordinates
48° 33.937' N, 121° 48.286' W 
Site Description
Shallow lake with soft bottom, marshy vegetation around edge, and cold clear spring on north end; surrounded by conifer forest. 
Specimen Notes
Plants very abundant, carpeting bottom in shallow water. 
Phenology
Vegetative 
Origin
Native 
Cultivated?
No 
Imaged?
Yes 

Hydrocharitaceae
28. Elodea canadensis Rich.
U.S.A., Washington, King County:
Star Lake.
47.3551° N, 122.2875° W.
Origin: Native.
WTU 363868
Steve Majerick s.n.    22 Aug 1996
with Wendy Cooke
28. Elodea canadensis Rich.
Database ID
154450 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
363868 
Barcode
 
Other Numbers
 
Family
Hydrocharitaceae 
Name on Specimen
Elodea canadensis Rich. 
Accepted Name
Elodea canadensis Michx. 
Annotation History
1. Elodea canadensis Rich.  
Type Notes
 
Collector
Steve Majerick 
Collection #
s.n. 
Other Collectors
Wendy Cooke 
Date Collected
22 Aug 1996 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
King 
Locality
Star Lake. 
Elevation
 
Coordinates
47.3551° N, 122.2875° W 
Site Description
 
Specimen Notes
 
Phenology
 
Origin
Native 
Cultivated?
No 
Imaged?
Yes 

Hydrocharitaceae
29. Elodea canadensis Rich.
U.S.A., Washington, King County:
Star Lake.
47.3551° N, 122.2875° W.
Origin: Native.
WTU 363869
Steve Majerick     5 Aug 1994
with Sharon Walton
29. Elodea canadensis Rich.
Database ID
154452 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
363869 
Barcode
 
Other Numbers
 
Family
Hydrocharitaceae 
Name on Specimen
Elodea canadensis Rich. 
Accepted Name
Elodea canadensis Michx. 
Annotation History
1. Elodea canadensis Rich.  
Type Notes
 
Collector
Steve Majerick 
Collection #
 
Other Collectors
Sharon Walton 
Date Collected
5 Aug 1994 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
King 
Locality
Star Lake. 
Elevation
 
Coordinates
47.3551° N, 122.2875° W 
Site Description
 
Specimen Notes
 
Phenology
 
Origin
Native 
Cultivated?
No 
Imaged?
Yes 

Hydrocharitaceae
30. Elodea canadensis Rich.
U.S.A., Washington, King County:
Shadow Lake.
47.4059° N, 122.087° W.
Phenology: Vegetative. Origin: Native.
WTU 363857
Steve Majerick     23 Aug 1996
with Wendy Cooke
30. Elodea canadensis Rich.
Database ID
154473 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
363857 
Barcode
 
Other Numbers
 
Family
Hydrocharitaceae 
Name on Specimen
Elodea canadensis Rich. 
Accepted Name
Elodea canadensis Michx. 
Annotation History
1. Elodea canadensis Rich.  
Type Notes
 
Collector
Steve Majerick 
Collection #
 
Other Collectors
Wendy Cooke 
Date Collected
23 Aug 1996 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
King 
Locality
Shadow Lake. 
Elevation
 
Coordinates
47.4059° N, 122.087° W 
Site Description
 
Specimen Notes
 
Phenology
Vegetative 
Origin
Native 
Cultivated?
No 
Imaged?
Yes 

Hydrocharitaceae
31. Elodea canadensis Rich.
U.S.A., Washington, King County:
Shadow Lake.
47.4059° N, 122.087° W.
Phenology: Vegetative. Origin: Native.
WTU 363856
Del Field     26 Jul 1994
with Steve Majerick
31. Elodea canadensis Rich.
Database ID
154474 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
363856 
Barcode
 
Other Numbers
 
Family
Hydrocharitaceae 
Name on Specimen
Elodea canadensis Rich. 
Accepted Name
Elodea canadensis Michx. 
Annotation History
1. Elodea canadensis Rich.  
Type Notes
 
Collector
Del Field 
Collection #
 
Other Collectors
Steve Majerick 
Date Collected
26 Jul 1994 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
King 
Locality
Shadow Lake. 
Elevation
 
Coordinates
47.4059° N, 122.087° W 
Site Description
 
Specimen Notes
 
Phenology
Vegetative 
Origin
Native 
Cultivated?
No 
Imaged?
Yes 

Hydrocharitaceae
32. Elodea canadensis Rich.
U.S.A., Washington, King County:
Meridian Lake.
47.3631° N, 122.1538° W.
Phenology: Vegetative. Origin: Native.
WTU 363846
Del Field     1 Aug 1994
with Nicholas Altieri
32. Elodea canadensis Rich.
Database ID
154482 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
363846 
Barcode
 
Other Numbers
 
Family
Hydrocharitaceae 
Name on Specimen
Elodea canadensis Rich. 
Accepted Name
Elodea canadensis Michx. 
Annotation History
1. Elodea canadensis Rich.  
Type Notes
 
Collector
Del Field 
Collection #
 
Other Collectors
Nicholas Altieri 
Date Collected
1 Aug 1994 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
King 
Locality
Meridian Lake. 
Elevation
 
Coordinates
47.3631° N, 122.1538° W 
Site Description
 
Specimen Notes
 
Phenology
Vegetative 
Origin
Native 
Cultivated?
No 
Imaged?
Yes 

Hydrocharitaceae
33. Elodea canadensis Rich.
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.
WTU 373749
Ben Legler 3035    31 Aug 2005
with Peter F. Zika, David Giblin
33. Elodea canadensis Rich.
Database ID
154853 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
373749 
Barcode
 
Other Numbers
 
Family
Hydrocharitaceae 
Name on Specimen
Elodea canadensis Rich. 
Accepted Name
Elodea canadensis Michx. 
Annotation History
1. Elodea canadensis Rich.
    Annotated by B. Legler, 2005. Sources: H&C.  
Type Notes
 
Collector
Ben Legler 
Collection #
3035 
Other Collectors
Peter F. Zika, David Giblin 
Date Collected
31 Aug 2005 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Cowlitz 
Locality
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. 
Elevation
492 ft. 
Coordinates
46° 19.095' N, 122° 46.551' W 
Site Description
Boggy embayment with Typha, Spiraea, Nuphar, Potomogeton, Utricularia, Salix geyeriana. 
Specimen Notes
Common; submerged. 
Phenology
Vegetative 
Origin
Native 
Cultivated?
No 
Imaged?
Yes 

Hydrocharitaceae
34. Elodea canadensis Rich.
U.S.A., Washington, Wahkiakum County:
East shore of Deep River near mouth, 1 air mile northwest of Miller Point; Grays Bay, Columbia River.
Elev. 6 ft. 46° 18.7' N, 123° 42.8' W; T10N R8W S31.
Freshwater intertidal marsh, mudflats and higher marsh, with Scirpus triqueter, Lilaeopsis. Phenology: Vegetative. Origin: Native.
WTU
Peter F. Zika 22265    30 Aug 2005
with David Giblin, Cathy Maxwell, Ben Legler
34. Elodea canadensis Rich.
Database ID
154899 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
 
Barcode
 
Other Numbers
 
Family
Hydrocharitaceae 
Name on Specimen
Elodea canadensis Rich. 
Accepted Name
Elodea canadensis Michx. 
Annotation History
1. Elodea canadensis Rich.
    Annotated by P. F. Zika, 2005. Sources: FNA.  
Type Notes
 
Collector
Peter F. Zika 
Collection #
22265 
Other Collectors
David Giblin, Cathy Maxwell, Ben Legler 
Date Collected
30 Aug 2005 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Wahkiakum 
Locality
East shore of Deep River near mouth, 1 air mile northwest of Miller Point; Grays Bay, Columbia River. 
Elevation
6 ft. 
Coordinates
46° 18.7' N, 123° 42.8' W; T10N R8W S31 
Site Description
Freshwater intertidal marsh, mudflats and higher marsh, with Scirpus triqueter, Lilaeopsis. 
Specimen Notes
 
Phenology
Vegetative 
Origin
Native 
Cultivated?
No 
Imaged?
No 

Hydrocharitaceae
35. Elodea canadensis Rich.
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.
WTU 363962
Del Field     23 Aug 1994
with Steve Majerick
35. Elodea canadensis Rich.
Database ID
155372 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
363962 
Barcode
 
Other Numbers
 
Family
Hydrocharitaceae 
Name on Specimen
Elodea canadensis Rich. 
Accepted Name
Elodea canadensis Michx. 
Annotation History
1. Elodea canadensis Rich.  
Type Notes
 
Collector
Del Field 
Collection #
 
Other Collectors
Steve Majerick 
Date Collected
23 Aug 1994 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
King 
Locality
Lucerne/Pipe Lake. 
Elevation
 
Coordinates
47.368° N, 122.0517° W 
Site Description
Latitude and Longitude for Pipe Lake is 47.3660N and 122.0604W. 
Specimen Notes
 
Phenology
Vegetative 
Origin
Native 
Cultivated?
No 
Imaged?
Yes 

Hydrocharitaceae
36. Elodea canadensis Rich.
U.S.A., Washington, King County:
North Lake.
47.3052° N, 122.2906° W.
Water Weed/ Phenology: Vegetative. Origin: Native.
WTU 363979
Del Field s.n.    26 Jul 1995
with Steve Majerick, Cassandra Robertson
36. Elodea canadensis Rich.
Database ID
155381 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
363979 
Barcode
 
Other Numbers
 
Family
Hydrocharitaceae 
Name on Specimen
Elodea canadensis Rich. 
Accepted Name
Elodea canadensis Michx. 
Annotation History
1. Elodea canadensis Rich.  
Type Notes
 
Collector
Del Field 
Collection #
s.n. 
Other Collectors
Steve Majerick, Cassandra Robertson 
Date Collected
26 Jul 1995 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
King 
Locality
North Lake. 
Elevation
 
Coordinates
47.3052° N, 122.2906° W 
Site Description
 
Specimen Notes
Water Weed/ 
Phenology
Vegetative 
Origin
Native 
Cultivated?
No 
Imaged?
Yes 

Hydrocharitaceae
37. Elodea canadensis Rich.
U.S.A., Washington, King County:
Cottage Lake.
47.754° N, 122.087° W.
Phenology: Vegetative. Origin: Native.
WTU 364030
Del Field     31 Jul 1995
with Chuck Eberhart, Steve Majerick
37. Elodea canadensis Rich.
Database ID
155437 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
364030 
Barcode
 
Other Numbers
 
Family
Hydrocharitaceae 
Name on Specimen
Elodea canadensis Rich. 
Accepted Name
Elodea canadensis Michx. 
Annotation History
1. Elodea canadensis Rich.  
Type Notes
 
Collector
Del Field 
Collection #
 
Other Collectors
Chuck Eberhart, Steve Majerick 
Date Collected
31 Jul 1995 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
King 
Locality
Cottage Lake. 
Elevation
 
Coordinates
47.754° N, 122.087° W 
Site Description
 
Specimen Notes
 
Phenology
Vegetative 
Origin
Native 
Cultivated?
No 
Imaged?
Yes 

Hydrocharitaceae
38. Elodea canadensis Rich.
U.S.A., Washington, King County:
Geneva Lake.
47.2913° N, 122.2817° W.
Phenology: Vegetative. Origin: Native.
WTU 364047
Steve Majerick     26 Aug 1996
with Wendy Cooke
38. Elodea canadensis Rich.
Database ID
155453 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
364047 
Barcode
 
Other Numbers
 
Family
Hydrocharitaceae 
Name on Specimen
Elodea canadensis Rich. 
Accepted Name
Elodea canadensis Michx. 
Annotation History
1. Elodea canadensis Rich.  
Type Notes
 
Collector
Steve Majerick 
Collection #
 
Other Collectors
Wendy Cooke 
Date Collected
26 Aug 1996 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
King 
Locality
Geneva Lake. 
Elevation
 
Coordinates
47.2913° N, 122.2817° W 
Site Description
 
Specimen Notes
 
Phenology
Vegetative 
Origin
Native 
Cultivated?
No 
Imaged?
Yes 

Hydrocharitaceae
39. Elodea canadensis Rich.
U.S.A., Washington, King County:
Kathleen Lake.
47.4783° N, 122.0881° W.
Phenology: Vegetative. Origin: Native.
WTU 363991
Del Field     17 Aug 1995
with Steve Majerick
39. Elodea canadensis Rich.
Database ID
155461 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
363991 
Barcode
 
Other Numbers
 
Family
Hydrocharitaceae 
Name on Specimen
Elodea canadensis Rich. 
Accepted Name
Elodea canadensis Michx. 
Annotation History
1. Elodea canadensis Rich.  
Type Notes
 
Collector
Del Field 
Collection #
 
Other Collectors
Steve Majerick 
Date Collected
17 Aug 1995 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
King 
Locality
Kathleen Lake. 
Elevation
 
Coordinates
47.4783° N, 122.0881° W 
Site Description
 
Specimen Notes
 
Phenology
Vegetative 
Origin
Native 
Cultivated?
No 
Imaged?
Yes 

Hydrocharitaceae
40. Elodea canadensis Rich.
U.S.A., Washington, King County:
Walker Lake.
47.2642° N, 121.9089° W.
Phenology: Vegetative. Origin: Native.
WTU 364001
Del Field     23 Aug 1995
with Steve Majerick
40. Elodea canadensis Rich.
Database ID
155467 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
364001 
Barcode
 
Other Numbers
 
Family
Hydrocharitaceae 
Name on Specimen
Elodea canadensis Rich. 
Accepted Name
Elodea canadensis Michx. 
Annotation History
1. Elodea canadensis Rich.  
Type Notes
 
Collector
Del Field 
Collection #
 
Other Collectors
Steve Majerick 
Date Collected
23 Aug 1995 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
King 
Locality
Walker Lake. 
Elevation
 
Coordinates
47.2642° N, 121.9089° W 
Site Description
 
Specimen Notes
 
Phenology
Vegetative 
Origin
Native 
Cultivated?
No 
Imaged?
Yes 

Hydrocharitaceae
41. Elodea canadensis Rich.
U.S.A., Washington, King County:
Bass Lake.
47.2548° N, 121.996° W.
Phenology: Vegetative. Origin: Native.
WTU 364126
Del Field     25 Jul 1995
with Steve Majerick
41. Elodea canadensis Rich.
Database ID
155605 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
364126 
Barcode
 
Other Numbers
 
Family
Hydrocharitaceae 
Name on Specimen
Elodea canadensis Rich. 
Accepted Name
Elodea canadensis Michx. 
Annotation History
1. Elodea canadensis Rich.  
Type Notes
 
Collector
Del Field 
Collection #
 
Other Collectors
Steve Majerick 
Date Collected
25 Jul 1995 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
King 
Locality
Bass Lake. 
Elevation
 
Coordinates
47.2548° N, 121.996° W 
Site Description
 
Specimen Notes
 
Phenology
Vegetative 
Origin
Native 
Cultivated?
No 
Imaged?
Yes 

Hydrocharitaceae
42. Elodea canadensis Rich.
U.S.A., Washington, King County:
Deep Lake.
47.2736° N, 121.94° W.
Phenology: Vegetative. Origin: Native.
WTU 364136
Del Field     28 Aug 1995
with Steve Majerick
42. Elodea canadensis Rich.
Database ID
155608 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
364136 
Barcode
 
Other Numbers
 
Family
Hydrocharitaceae 
Name on Specimen
Elodea canadensis Rich. 
Accepted Name
Elodea canadensis Michx. 
Annotation History
1. Elodea canadensis Rich.  
Type Notes
 
Collector
Del Field 
Collection #
 
Other Collectors
Steve Majerick 
Date Collected
28 Aug 1995 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
King 
Locality
Deep Lake. 
Elevation
 
Coordinates
47.2736° N, 121.94° W 
Site Description
 
Specimen Notes
 
Phenology
Vegetative 
Origin
Native 
Cultivated?
No 
Imaged?
Yes 

Hydrocharitaceae
43. Elodea canadensis Rich.
U.S.A., Washington, King County:
Holm (Neilson) Lake.
47.3032° N, 122.127° W.
Phenology: Vegetative. Origin: Native.
WTU 364057
Del Field     26 Aug 1994
with Kathy Culver, Steve Majerick
43. Elodea canadensis Rich.
Database ID
155615 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
364057 
Barcode
 
Other Numbers
 
Family
Hydrocharitaceae 
Name on Specimen
Elodea canadensis Rich. 
Accepted Name
Elodea canadensis Michx. 
Annotation History
1. Elodea canadensis Rich.  
Type Notes
 
Collector
Del Field 
Collection #
 
Other Collectors
Kathy Culver, Steve Majerick 
Date Collected
26 Aug 1994 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
King 
Locality
Holm (Neilson) Lake. 
Elevation
 
Coordinates
47.3032° N, 122.127° W 
Site Description
 
Specimen Notes
 
Phenology
Vegetative 
Origin
Native 
Cultivated?
No 
Imaged?
Yes 

Hydrocharitaceae
44. Elodea canadensis Rich.
U.S.A., Washington, King County:
Five Mile Lake.
47.2724° N, 122.2863° W.
Phenology: Vegetative. Origin: Native.
WTU 364077
Steve Majerick     26 Aug 1996
with Wendy Cooke
44. Elodea canadensis Rich.
Database ID
155628 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
364077 
Barcode
 
Other Numbers
 
Family
Hydrocharitaceae 
Name on Specimen
Elodea canadensis Rich. 
Accepted Name
Elodea canadensis Michx. 
Annotation History
1. Elodea canadensis Rich.  
Type Notes
 
Collector
Steve Majerick 
Collection #
 
Other Collectors
Wendy Cooke 
Date Collected
26 Aug 1996 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
King 
Locality
Five Mile Lake. 
Elevation
 
Coordinates
47.2724° N, 122.2863° W 
Site Description
 
Specimen Notes
 
Phenology
Vegetative 
Origin
Native 
Cultivated?
No 
Imaged?
Yes 

Hydrocharitaceae
45. Elodea canadensis Rich.
U.S.A., Washington, King County:
Trout Lake.
47.2662° N, 122.28° W.
Phenology: Vegetative. Origin: Native.
WTU 364090
Steve Majerick     26 Aug 1996
with Wendy Cooke
45. Elodea canadensis Rich.
Database ID
155637 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
364090 
Barcode
 
Other Numbers
 
Family
Hydrocharitaceae 
Name on Specimen
Elodea canadensis Rich. 
Accepted Name
Elodea canadensis Michx. 
Annotation History
1. Elodea canadensis Rich.  
Type Notes
 
Collector
Steve Majerick 
Collection #
 
Other Collectors
Wendy Cooke 
Date Collected
26 Aug 1996 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
King 
Locality
Trout Lake. 
Elevation
 
Coordinates
47.2662° N, 122.28° W 
Site Description
 
Specimen Notes
 
Phenology
Vegetative 
Origin
Native 
Cultivated?
No 
Imaged?
Yes 

Hydrocharitaceae
46. Elodea canadensis Rich.
U.S.A., Washington, King County:
Twelve Lake.
47.3254° N, 121.9764° W.
Phenology: Vegetative. Origin: Native.
WTU 364106
Bill Priest     20 Jul 1995
with Steve Majerick, Janice Dugen
46. Elodea canadensis Rich.
Database ID
155641 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
364106 
Barcode
 
Other Numbers
 
Family
Hydrocharitaceae 
Name on Specimen
Elodea canadensis Rich. 
Accepted Name
Elodea canadensis Michx. 
Annotation History
1. Elodea canadensis Rich.  
Type Notes
 
Collector
Bill Priest 
Collection #
 
Other Collectors
Steve Majerick, Janice Dugen 
Date Collected
20 Jul 1995 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
King 
Locality
Twelve Lake. 
Elevation
 
Coordinates
47.3254° N, 121.9764° W 
Site Description
 
Specimen Notes
 
Phenology
Vegetative 
Origin
Native 
Cultivated?
No 
Imaged?
Yes 

Hydrocharitaceae
47. Elodea canadensis Rich.
U.S.A., Washington, King County:
McDonald Lake.
47.4716° N, 122.0773° W.
Phenology: Vegetative. Origin: Native.
WTU 364158
Del Field     16 Aug 1995
with Steve Majerick
47. Elodea canadensis Rich.
Database ID
155658 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
364158 
Barcode
 
Other Numbers
 
Family
Hydrocharitaceae 
Name on Specimen
Elodea canadensis Rich. 
Accepted Name
Elodea canadensis Michx. 
Annotation History
1. Elodea canadensis Rich.  
Type Notes
 
Collector
Del Field 
Collection #
 
Other Collectors
Steve Majerick 
Date Collected
16 Aug 1995 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
King 
Locality
McDonald Lake. 
Elevation
 
Coordinates
47.4716° N, 122.0773° W 
Site Description
 
Specimen Notes
 
Phenology
Vegetative 
Origin
Native 
Cultivated?
No 
Imaged?
Yes 

Hydrocharitaceae
48. Elodea canadensis Rich.
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.
WTU 367416
Ben Legler 3682    15 Sep 2006
48. Elodea canadensis Rich.
Database ID
155998 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
367416 
Barcode
 
Other Numbers
 
Family
Hydrocharitaceae 
Name on Specimen
Elodea canadensis Rich. 
Accepted Name
Elodea canadensis Michx. 
Annotation History
1. Elodea canadensis Rich.
    Annotated by Ben Legler.  
Type Notes
 
Collector
Ben Legler 
Collection #
3682 
Other Collectors
 
Date Collected
15 Sep 2006 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Snohomish 
Locality
Along north shore of Stillaguamish River 1.9 air miles west of Arlington; in old side channel of river. 
Elevation
37 ft. 
Coordinates
48° 11' 34" N, 122° 10' 1" W 
Site Description
Still shallow water in silty side channel; floods in winter. 
Specimen Notes
Common, forming large submerged patches; sterile. 
Phenology
Vegetative 
Origin
Native 
Cultivated?
No 
Imaged?
Yes 

Hydrocharitaceae
49. Elodea canadensis Rich.
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.
WTU 379521
David Giblin 1158    6 Sep 2007
with Joe Arnett
49. Elodea canadensis Rich.
Database ID
158340 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
379521 
Barcode
 
Other Numbers
 
Family
Hydrocharitaceae 
Name on Specimen
Elodea canadensis Rich. 
Accepted Name
Elodea canadensis Michx. 
Annotation History
1. Elodea canadensis Rich.
    Annotated by Megan A. Jensen, 27 2007. Sources: FNA.  
Type Notes
 
Collector
David Giblin 
Collection #
1158 
Other Collectors
Joe Arnett 
Date Collected
6 Sep 2007 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Pend Oreille 
Locality
Colville National Forest. Lake Leo boat ramp, northwest side of lake. 
Elevation
3280 ft. 
Coordinates
48.6495° N, 117.496° W 
Site Description
Mix of sandy and silty lake bottom; water to 1 meter deep; shoreline and shallow water dominated by Carex uliginosa and Spiraea douglasii. 
Specimen Notes
Dominant aquatic species in water less than 1 meter deep. 
Phenology
Vegetative 
Origin
Native 
Cultivated?
No 
Imaged?
Yes 

Hydrocharitaceae
50. Elodea canadensis Rich.
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.
WTU 379810
Joe Arnett 07-113    4 Sep 2007
with David Giblin
50. Elodea canadensis Rich.
Database ID
158373 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
379810 
Barcode
 
Other Numbers
 
Family
Hydrocharitaceae 
Name on Specimen
Elodea canadensis Rich. 
Accepted Name
Elodea canadensis Michx. 
Annotation History
1. Elodea canadensis Rich.
    Annotated by Megan A. Jensen, 28 2007. Sources: FNA.  
Type Notes
 
Collector
Joe Arnett 
Collection #
07-113 
Other Collectors
David Giblin 
Date Collected
4 Sep 2007 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Stevens 
Locality
Colville National Forest. Little Twin Lakes. 
Elevation
3696 ft. 
Coordinates
48.5748° N, 117.644° W 
Site Description
Shallow water with soft muck bottom and adjacent shoreline. Brasenia schreberi dominant. 
Specimen Notes
Common in shallow water throughout lake. 
Phenology
Fertile 
Origin
Native 
Cultivated?
No 
Imaged?
Yes 

Hydrocharitaceae
51. Elodea canadensis Rich.
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.
WTU 379562
Joe Arnett 07-136    6 Sep 2007
with David Giblin
51. Elodea canadensis Rich.
Database ID
158390 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
379562 
Barcode
 
Other Numbers
 
Family
Hydrocharitaceae 
Name on Specimen
Elodea canadensis Rich. 
Accepted Name
Elodea canadensis Michx. 
Annotation History
1. Elodea canadensis Rich.
    Annotated by Megan A. Jensen, 28 2007. Sources: FNA.  
Type Notes
 
Collector
Joe Arnett 
Collection #
07-136 
Other Collectors
David Giblin 
Date Collected
6 Sep 2007 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Pend Oreille 
Locality
Colville National Forest. Lake Leo shoreline and aquatic areas south of end of Forest Road 513, east side of lake. 
Elevation
3280 ft. 
Coordinates
48.6479° N, 117.492° W 
Site Description
Edge of lake and water to 1 meter deep; Carex lanuginosa dominant in water. 
Specimen Notes
Dominant species in water to 0.5 meters deep. 
Phenology
Fertile 
Origin
Native 
Cultivated?
No 
Imaged?
Yes 

Hydrocharitaceae
52. Elodea canadensis Michx.
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.
WTU 368896
Peter F. Zika 19518    9 May 2004
52. Elodea canadensis Michx.
Database ID
166902 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
368896 
Barcode
 
Other Numbers
 
Family
Hydrocharitaceae 
Name on Specimen
Elodea canadensis Michx. 
Accepted Name
Elodea canadensis Michx. 
Annotation History
1. Elodea canadensis Michx.  
Type Notes
 
Collector
Peter F. Zika 
Collection #
19518 
Other Collectors
 
Date Collected
9 May 2004 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Pend Oreille 
Locality
Pend Oreille River, east of Route 20, north of mouth of Lost Creek. 
Elevation
2066 ft. 
Coordinates
48° 36.8' N, 117° 21.8' W; T36N R43E S15 
Site Description
Near grassy west shore of reservoir, over granite, with Potamogeton crispus, Myriophyllum sibiricum. 
Specimen Notes
Floating in water. 
Phenology
Vegetative 
Origin
Native 
Cultivated?
No 
Imaged?
Yes 

Hydrocharitaceae
53. Elodea canadensis Rich.
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.
WTU 370376
Don Knoke 978    5 Sep 2005
53. Elodea canadensis Rich.
Database ID
168089 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
370376 
Barcode
 
Other Numbers
 
Family
Hydrocharitaceae 
Name on Specimen
Elodea canadensis Rich. 
Accepted Name
Elodea canadensis Michx. 
Annotation History
1. Elodea canadensis Rich.
    Annotated by Don Knoke.  
Type Notes
 
Collector
Don Knoke 
Collection #
978 
Other Collectors
 
Date Collected
5 Sep 2005 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Kittitas 
Locality
Locust Grove Farm, 15021 North Thorp Highway, Thorp. 
Elevation
1685 ft. 
Coordinates
47° 5.75' N, 120° 41.886' W; T19N R17E S34 
Site Description
Flowing water in irrigation ditch. Other plants near ditch: Populus trichocarpa, Rosa woodsii, Cornus stolonifera, Clematis lingusticifolia. 
Specimen Notes
Flowers white; common. 
Phenology
Flowers 
Origin
Native 
Cultivated?
No 
Imaged?
Yes 

Hydrocharitaceae
54. Elodea canadensis Michx.
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.
WTU 370068
Peter F. Zika 22347    12 Sep 2005
54. Elodea canadensis Michx.
Database ID
168152 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
370068 
Barcode
 
Other Numbers
 
Family
Hydrocharitaceae 
Name on Specimen
Elodea canadensis Michx. 
Accepted Name
Elodea canadensis Michx. 
Annotation History
1. Elodea canadensis Michx.  
Type Notes
 
Collector
Peter F. Zika 
Collection #
22347 
Other Collectors
 
Date Collected
12 Sep 2005 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Walla Walla 
Locality
Southeast shore of reservoir on Snake River, Lake Sacajawea, Charbonneau Park, 1.5 air miles east of Ice Harbor Dam. 
Elevation
442 ft. 
Coordinates
46° 15.4' N, 118° 50.8' W; T9N R32E S19 
Site Description
With Potamogeton nodosus, Myriophyllum spicatum. 
Specimen Notes
Occasional aquatic near boatramp. 
Phenology
Vegetative 
Origin
Native 
Cultivated?
No 
Imaged?
Yes 

Hydrocharitaceae
55. Elodea canadensis Rich.
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.
WTU 380541
David Giblin 1936    27 Jun 2008
55. Elodea canadensis Rich.
Database ID
172096 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
380541 
Barcode
 
Other Numbers
 
Family
Hydrocharitaceae 
Name on Specimen
Elodea canadensis Rich. 
Accepted Name
Elodea canadensis Michx. 
Annotation History
1. Elodea canadensis Rich.
    Annotated by David Giblin, 26 2009. Sources: FNA.  
Type Notes
 
Collector
David Giblin 
Collection #
1936 
Other Collectors
 
Date Collected
27 Jun 2008 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Lincoln 
Locality
U.S. Bureau of Land Management at Twin Lakes. 
Elevation
1880 ft. 
Coordinates
47.53065°, -118.5057° 
Site Description
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. 
Specimen Notes
Locally common near boat launch in water over 1 meter deep. 
Phenology
Vegetative 
Origin
Native 
Cultivated?
No 
Imaged?
Yes 

Hydrocharitaceae
56. Elodea canadensis Rich.
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.
WTU 381143
David Giblin 2386    4 Sep 2008
56. Elodea canadensis Rich.
Database ID
174353 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
381143 
Barcode
 
Other Numbers
 
Family
Hydrocharitaceae 
Name on Specimen
Elodea canadensis Rich. 
Accepted Name
Elodea canadensis Michx. 
Annotation History
1. Elodea canadensis Rich.
    Annotated by David Giblin, 28 2009. Sources: FNA.  
Type Notes
 
Collector
David Giblin 
Collection #
2386 
Other Collectors
 
Date Collected
4 Sep 2008 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Adams 
Locality
Herman Lake, along shoreline near boat ramp. 
Elevation
944 ft. 
Coordinates
46.89746° N, 119.19958° W 
Site Description
From 0.7 meters deep in lake to upland area adjacent to shoreline. Schoenoplectus acutus, Typha sp., and Juncus spp. dominant. 
Specimen Notes
Scattered along lake bottom in water to 0.5 meters deep. 
Phenology
Vegetative 
Origin
Native 
Cultivated?
No 
Imaged?
Yes 

Hydrocharitaceae
57. Elodea canadensis Rich.
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.
WTU 380325
David Giblin 2334    29 Aug 2008
57. Elodea canadensis Rich.
Database ID
174461 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
380325 
Barcode
 
Other Numbers
 
Family
Hydrocharitaceae 
Name on Specimen
Elodea canadensis Rich. 
Accepted Name
Elodea canadensis Michx. 
Annotation History
1. Elodea canadensis Rich.
    Annotated by David Giblin, 27 2009. Sources: FNA.  
Type Notes
 
Collector
David Giblin 
Collection #
2334 
Other Collectors
 
Date Collected
29 Aug 2008 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Grant 
Locality
Potholes Wildlife Area. Drainage slough west side of road, south side of slough. From roadside to 2 kilometers west of road. 
Elevation
314 m. 
Coordinates
47.08172° N, 119.34336° W 
Site Description
Shallow water of slough and adjacent sandy embankment up to 50 meters in from slough. Moisture gradient from saturated to dry and alkaline. 
Specimen Notes
Growing in shallow water of slough. 
Phenology
Vegetative 
Origin
Native 
Cultivated?
No 
Imaged?
Yes 

Hydrocharitaceae
58. Elodea canadensis Rich.
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.
WTU 400966; Barcode: WTU-V-007675
David Giblin 2492    8 Sep 2008
with Cathy Maxwell, Joe Arnett
58. Elodea canadensis Rich.
Database ID
174939 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
400966 
Barcode
WTU-V-007675 
Other Numbers
 
Family
Hydrocharitaceae 
Name on Specimen
Elodea canadensis Rich. 
Accepted Name
Elodea canadensis Michx. 
Annotation History
1. Elodea canadensis Rich.
    Annotated by David Giblin, 28 2009. Sources: FNA.  
Type Notes
 
Collector
David Giblin 
Collection #
2492 
Other Collectors
Cathy Maxwell, Joe Arnett 
Date Collected
8 Sep 2008 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Wahkiakum 
Locality
Julia Butler Hansen Refuge for Columbian White-tailed Deer. Steamboat Slough; bank of Columbia River just off road. 
Elevation
22 ft. 
Coordinates
46.24875° N, 123.43319° W 
Site Description
Freshwater intertidal zone adjacent to road and disturbed roadside edge. 
Specimen Notes
Common and abundant in mucky soil of intertidal zone. 
Phenology
Vegetative 
Origin
Native 
Cultivated?
No 
Imaged?
Yes 

Hydrocharitaceae
59. Elodea canadensis Rich.
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.
WTU 388835
David Giblin 3108    14 Aug 2009
with Don Knoke
59. Elodea canadensis Rich.
Database ID
180499 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
388835 
Barcode
 
Other Numbers
 
Family
Hydrocharitaceae 
Name on Specimen
Elodea canadensis Rich. 
Accepted Name
Elodea canadensis Michx. 
Annotation History
1. Elodea canadensis Rich.
    Annotated by Don Knoke, 10 2011. Sources: H&C.  
Type Notes
 
Collector
David Giblin 
Collection #
3108 
Other Collectors
Don Knoke 
Date Collected
14 Aug 2009 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Yakima 
Locality
Unnamed pond at intersection of highways 12 and 410. Southwest quadrant of intersection. 
Elevation
1607 ft. 
Coordinates
46.7473° N, 120.78849° W 
Site Description
Shallow pond to 1.5 meters deep with Typha dominant along the periphery. 
Specimen Notes
Locally common in shallow water to 40 centimeters deep. 
Phenology
Vegetative 
Origin
Native 
Cultivated?
No 
Imaged?
Yes 

Hydrocharitaceae
60. Elodea canadensis Michx.
U.S.A., Washington, Franklin County:
Scootenay Reservoir. Southeast area near boat launch with Populus tremuloides trees.
Elev. 283 m. 46.69994° N, 119.0232° W. Datum: WGS 84. Coordinate uncertainty: 5 meters. Georeferenced by Maria Yousoufian.
Lake shore edge dominated by Phalaris arundinacea; adjacent shrub-steppe; water to 1 meter deep. Growing in water to 1 meter deep; common. Phenology: Vegetative. Origin: Native.
WTU 401335; Barcode: WTU-V-8237
David Giblin 3270    30 Sep 2009
60. Elodea canadensis Michx.
Database ID
187288 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
401335 
Barcode
WTU-V-8237 
Other Numbers
 
Family
Hydrocharitaceae 
Name on Specimen
Elodea canadensis Michx. 
Accepted Name
Elodea canadensis Michx. 
Annotation History
1. Elodea canadensis Michx.
    Annotated by Katie Messick, 23 2013. Sources: Flora of PNW.  
Type Notes
 
Collector
David Giblin 
Collection #
3270 
Other Collectors
 
Date Collected
30 Sep 2009 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Franklin 
Locality
Scootenay Reservoir. Southeast area near boat launch with Populus tremuloides trees. 
Elevation
283 m. 
Coordinates
46.69994° N, 119.0232° W 
Site Description
Lake shore edge dominated by Phalaris arundinacea; adjacent shrub-steppe; water to 1 meter deep. 
Specimen Notes
Growing in water to 1 meter deep; common. 
Phenology
Vegetative 
Origin
Native 
Cultivated?
No 
Imaged?
Yes 

Hydrocharitaceae
61. Elodea canadensis Michx.
U.S.A., Washington, Mason County:
Isabella Lake. Accessed by public park on Delight Park Road.
Elev. 43 m. 47.17167° N, 123.10949° W. Datum: WGS 84. Coordinate uncertainty: 5 meters. Georeferenced by Maria Yousoufian.
Shoreline dominated by Salix sp. and Thuja plicata; lake margin to 80 centimeter depth. Scattered pieces that apparently floated in from elsewhere. Phenology: Vegetative. Origin: Native.
WTU 392860
David Giblin 3196    2 Sep 2009
61. Elodea canadensis Michx.
Database ID
187321 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
392860 
Barcode
 
Other Numbers
 
Family
Hydrocharitaceae 
Name on Specimen
Elodea canadensis Michx. 
Accepted Name
Elodea canadensis Michx. 
Annotation History
1. Elodea canadensis Michx.
    Annotated by Katie Messick, 12 2013. Sources: Flora of PNW.  
Type Notes
 
Collector
David Giblin 
Collection #
3196 
Other Collectors
 
Date Collected
2 Sep 2009 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Mason 
Locality
Isabella Lake. Accessed by public park on Delight Park Road. 
Elevation
43 m. 
Coordinates
47.17167° N, 123.10949° W 
Site Description
Shoreline dominated by Salix sp. and Thuja plicata; lake margin to 80 centimeter depth. 
Specimen Notes
Scattered pieces that apparently floated in from elsewhere. 
Phenology
Vegetative 
Origin
Native 
Cultivated?
No 
Imaged?
Yes 

Hydrocharitaceae
62. Elodea canadensis Michx.
U.S.A., Washington, Island County:
Deception Pass State Park. Cranberry Lake. Wetland area on west side of lake just south of bathing area.
Elev. 1 m. 48.3949° N, 122.6609° W. Datum: WGS 84. Coordinate uncertainty: 100 meters. Georeferenced by Maria Yousoufian. Coordinate Source: Digital map.
Wet meadow on edge of lake with Spiraea douglasii, Carex aquatilis and Sphagnum. Locally common; growing among Menyanthes. Phenology: Vegetative. Origin: Native.
WTU 396285
Jeff Walker 523    24 Aug 2010
with Ben Legler, David Giblin
62. Elodea canadensis Michx.
Database ID
188516 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
396285 
Barcode
 
Other Numbers
 
Family
Hydrocharitaceae 
Name on Specimen
Elodea canadensis Michx. 
Accepted Name
Elodea canadensis Michx. 
Annotation History
1. Elodea canadensis Michx.
    Annotated by Cynthia Riskin, 10 2013. Sources: Flora of PNW.  
Type Notes
 
Collector
Jeff Walker 
Collection #
523 
Other Collectors
Ben Legler, David Giblin 
Date Collected
24 Aug 2010 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Island 
Locality
Deception Pass State Park. Cranberry Lake. Wetland area on west side of lake just south of bathing area. 
Elevation
1 m. 
Coordinates
48.3949° N, 122.6609° W 
Site Description
Wet meadow on edge of lake with Spiraea douglasii, Carex aquatilis and Sphagnum. 
Specimen Notes
Locally common; growing among Menyanthes. 
Phenology
Vegetative 
Origin
Native 
Cultivated?
No 
Imaged?
Yes 

Hydrocharitaceae
63. Elodea canadensis Michx.
U.S.A., Washington, Whatcom County:
Ross Lake National Recreation Area: in drawdown of Gorge Lake on upstream side of where Highway 20 crosses lake.
Elev. 233 m. 48.713326° N, 121.157857° W. Datum: WGS 84. Coordinate uncertainty: 36 meters. Georeferenced by Ben Legler. Coordinate Source: GPS.
Bare mud flats with scattered patches of Eleocharis and Ranunculus flammula; low spots contain standing water. Submerged in pool, abundant. Phenology: Vegetative.
WTU 403961; Barcode: WTU-V-012964
Ben Legler 12938    2 Sep 2013
63. Elodea canadensis Michx.
Database ID
189449 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
403961 
Barcode
WTU-V-012964 
Other Numbers
 
Family
Hydrocharitaceae 
Name on Specimen
Elodea canadensis Michx. 
Accepted Name
Elodea canadensis Michx. 
Annotation History
1. Elodea canadensis Rich.
    Annotated by Ben Legler, 8 2013. Sources: FNA.  
Type Notes
 
Collector
Ben Legler 
Collection #
12938 
Other Collectors
 
Date Collected
2 Sep 2013 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Whatcom 
Locality
Ross Lake National Recreation Area: in drawdown of Gorge Lake on upstream side of where Highway 20 crosses lake. 
Elevation
233 m. 
Coordinates
48.713326° N, 121.157857° W 
Site Description
Bare mud flats with scattered patches of Eleocharis and Ranunculus flammula; low spots contain standing water. 
Specimen Notes
Submerged in pool, abundant. 
Phenology
Vegetative 
Origin
 
Cultivated?
No 
Imaged?
Yes 

Hydrocharitaceae
64. Elodea canadensis Rich.
U.S.A., Oregon, Deschutes County:
At north end of Crane Reservoir where Deschutes River enters reservoir.
Elev. 1330 m 43.81001° N, 121.77676° W. Datum: WGS 84. Coordinate uncertainty: 3 meters. Coordinate Source: GPS.
Exposed mudflats in reservoir draw down, backed by dense Carex stands, with Gratiola, Gnaphalium, Eleocharis. In shallow water in river.¶Tissue removed by Dorothy Chase at the University of Washington for DNA analysis, December 2019. Phenology: Flowers. Origin: Native.
WTU 410341; Barcode: WTU-V-024394
Katie Messick 2013-45    14 Jul 2013
with Ben Legler, Don Knoke, Wendy McClure
64. Elodea canadensis Rich.
Database ID
190012 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
410341 
Barcode
WTU-V-024394 
Other Numbers
 
Family
Hydrocharitaceae 
Name on Specimen
Elodea canadensis Rich. 
Accepted Name
Elodea canadensis Michx. 
Annotation History
1. Elodea canadensis Rich.
    Annotated by Katie Messick, 17 2013. Sources: Flora of PNW.  
Type Notes
 
Collector
Katie Messick 
Collection #
2013-45 
Other Collectors
Ben Legler, Don Knoke, Wendy McClure 
Date Collected
14 Jul 2013 
Verbatim Date
 
Country
U.S.A. 
State or Province
Oregon 
County
Deschutes 
Locality
At north end of Crane Reservoir where Deschutes River enters reservoir. 
Elevation
1330 m 
Coordinates
43.81001° N, 121.77676° W 
Site Description
Exposed mudflats in reservoir draw down, backed by dense Carex stands, with Gratiola, Gnaphalium, Eleocharis. 
Specimen Notes
In shallow water in river.¶Tissue removed by Dorothy Chase at the University of Washington for DNA analysis, December 2019. 
Phenology
Flowers 
Origin
Native 
Cultivated?
No 
Imaged?
Yes 

Hydrocharitaceae
65. Elodea canadensis Michx.
U.S.A., Oregon, Grant County:
Trout Farm Campground, Malheur National Forest.
Elev. 4850 ft. UTM Zone 11, 376152E, 4906938N. Datum: WGS 84. Coordinate uncertainty: 7 meters.
Associated species: Polygonum, Lemna minor, Spirodela polyrhiza, Ranunculus aquaticus. Flowers pink. Rooted, with floating leaves. Phenology: Flowers. Origin: Native.
WTU 400546; Barcode: WTU-V-006943
Barbara L. Wilson 16932    12 Sep 2011
with Nick Otting
65. Elodea canadensis Michx.
Database ID
192503 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
400546 
Barcode
WTU-V-006943 
Other Numbers
 
Family
Hydrocharitaceae 
Name on Specimen
Elodea canadensis Michx. 
Accepted Name
Elodea canadensis Michx. 
Annotation History
1. Elodea canadensis Michx.
    Annotated by Richard E. Brainerd, 2014.  
Type Notes
 
Collector
Barbara L. Wilson 
Collection #
16932 
Other Collectors
Nick Otting 
Date Collected
12 Sep 2011 
Verbatim Date
 
Country
U.S.A. 
State or Province
Oregon 
County
Grant 
Locality
Trout Farm Campground, Malheur National Forest. 
Elevation
4850 ft. 
Coordinates
UTM Zone 11, 376152E, 4906938N 
Site Description
Associated species: Polygonum, Lemna minor, Spirodela polyrhiza, Ranunculus aquaticus. 
Specimen Notes
Flowers pink. Rooted, with floating leaves. 
Phenology
Flowers 
Origin
Native 
Cultivated?
No 
Imaged?
Yes 

Hydrocharitaceae
66. Elodea canadensis Michx.
U.S.A., Washington, Lewis County:
Mt. Adams Veneer Company Mill Pond on east side of Road 25, 2.5 km due south of Randle.
Elev. 259 m. 46.512712° N, 121.953542° W. Datum: WGS 84. Coordinate uncertainty: 4 meters. Georeferenced by Ben Legler. Coordinate Source: GPS.
Man-made pond, rimmed by Spirea douglasii and Typha latifolia, with Nuphar polysepala, Potamogeton natans, Iris pseudacorus. Floating in water beneath surface; common. Phenology: Vegetative.
WTU 407726; Barcode: WTU-V-021903
Ben Legler 13347    22 Sep 2014
with Sara Legler
66. Elodea canadensis Michx.
Database ID
2782142 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
407726 
Barcode
WTU-V-021903 
Other Numbers
 
Family
Hydrocharitaceae 
Name on Specimen
Elodea canadensis Michx. 
Accepted Name
Elodea canadensis Michx. 
Annotation History
1. Elodea canadensis Rich.
    Annotated by Ben Legler, 2014.  
Type Notes
 
Collector
Ben Legler 
Collection #
13347 
Other Collectors
Sara Legler 
Date Collected
22 Sep 2014 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Lewis 
Locality
Mt. Adams Veneer Company Mill Pond on east side of Road 25, 2.5 km due south of Randle. 
Elevation
259 m. 
Coordinates
46.512712° N, 121.953542° W 
Site Description
Man-made pond, rimmed by Spirea douglasii and Typha latifolia, with Nuphar polysepala, Potamogeton natans, Iris pseudacorus. 
Specimen Notes
Floating in water beneath surface; common. 
Phenology
Vegetative 
Origin
 
Cultivated?
No 
Imaged?
Yes 

Hydrocharitaceae
67. Elodea canadensis Michx.
U.S.A., Oregon, Jefferson County:
East bank of Deschutes River, 120 meters upstream of Salmon Falls.
Elev. 705 m. 44.4145° N, 121.2899° W. Coordinate Source: Specimen Label.
0.5-1 meter of water over volcanics, with Ranunculus aquatilis. Submerged aquatic, petals pink to whitish, some forked; forming thick beds in current. Origin: Native.
WTU 409812; Barcode: WTU-V-023846
Peter F. Zika 28010    3 Jul 2016
67. Elodea canadensis Michx.
Database ID
3102927 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
409812 
Barcode
WTU-V-023846 
Other Numbers
 
Family
Hydrocharitaceae 
Name on Specimen
Elodea canadensis Michx. 
Accepted Name
Elodea canadensis Michx. 
Annotation History
1. Elodea canadensis Michx.  
Type Notes
 
Collector
Peter F. Zika 
Collection #
28010 
Other Collectors
 
Date Collected
3 Jul 2016 
Verbatim Date
 
Country
U.S.A. 
State or Province
Oregon 
County
Jefferson 
Locality
East bank of Deschutes River, 120 meters upstream of Salmon Falls. 
Elevation
705 m. 
Coordinates
44.4145° N, 121.2899° W 
Site Description
0.5-1 meter of water over volcanics, with Ranunculus aquatilis. 
Specimen Notes
Submerged aquatic, petals pink to whitish, some forked; forming thick beds in current. 
Phenology
 
Origin
Native 
Cultivated?
No 
Imaged?
Yes 

Hydrocharitaceae
68. Elodea canadensis Rich.
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.
Elev. 1265 m. 49.2581° N, 117.94166° W. Coordinate Source: Specimen Label.
Full sun, with Myriophyllum sibiricum, Potamogeton praelongus. Submerged aquatic, leaves 2.1-3.8 millimeters wide; common.¶Tissue removed by Dorothy Chase at the University of Washington for DNA analysis, December 2019. Origin: Native.
WTU 412207; Barcode: WTU-V-026668
Peter F. Zika 28366    30 Aug 2016
68. Elodea canadensis Rich.
Database ID
3142204 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
412207 
Barcode
WTU-V-026668 
Other Numbers
 
Family
Hydrocharitaceae 
Name on Specimen
Elodea canadensis Rich. 
Accepted Name
Elodea canadensis Michx. 
Annotation History
1. Elodea canadensis Rich.  
Type Notes
 
Collector
Peter F. Zika 
Collection #
28366 
Other Collectors
 
Date Collected
30 Aug 2016 
Verbatim Date
 
Country
Canada 
State or Province
British Columbia 
County
 
Locality
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. 
Elevation
1265 m. 
Coordinates
49.2581° N, 117.94166° W 
Site Description
Full sun, with Myriophyllum sibiricum, Potamogeton praelongus. 
Specimen Notes
Submerged aquatic, leaves 2.1-3.8 millimeters wide; common.¶Tissue removed by Dorothy Chase at the University of Washington for DNA analysis, December 2019. 
Phenology
 
Origin
Native 
Cultivated?
No 
Imaged?
Yes 

Hydrocharitaceae
69. Elodea canadensis Michx.
U.S.A., Oregon, Gilliam County:
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.
Elev. 80 m. 45.6962° N, 120.3724° W. Datum: WGS 84. Coordinate Source: GPS.
Rocky bottom, in 0.5-1 meter water, full sun, over basalt, with Heteranthera dubia, Myriophyllum spicatum, Ceratophyllum demersum. Leaves 1.6-2.3 millimeters wide, white flowers; common submerged aquatic.¶Tissue removed by Dorothy Chase at the University of Washington for DNA analysis, December 2019. Phenology: Flowers. Origin: Native.
WTU 416493; Barcode: WTU-V-035409
Peter F. Zika 29053    19 Aug 2017
69. Elodea canadensis Michx.
Database ID
3152107 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
416493 
Barcode
WTU-V-035409 
Other Numbers
 
Family
Hydrocharitaceae 
Name on Specimen
Elodea canadensis Michx. 
Accepted Name
Elodea canadensis Michx. 
Annotation History
1. Elodea canadensis Michx.  
Type Notes
 
Collector
Peter F. Zika 
Collection #
29053 
Other Collectors
 
Date Collected
19 Aug 2017 
Verbatim Date
 
Country
U.S.A. 
State or Province
Oregon 
County
Gilliam 
Locality
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. 
Elevation
80 m. 
Coordinates
45.6962° N, 120.3724° W 
Site Description
Rocky bottom, in 0.5-1 meter water, full sun, over basalt, with Heteranthera dubia, Myriophyllum spicatum, Ceratophyllum demersum. 
Specimen Notes
Leaves 1.6-2.3 millimeters wide, white flowers; common submerged aquatic.¶Tissue removed by Dorothy Chase at the University of Washington for DNA analysis, December 2019. 
Phenology
Flowers 
Origin
Native 
Cultivated?
No 
Imaged?
Yes 

Hydrocharitaceae
70. Elodea canadensis Michx.
U.S.A., Washington, Spokane County:
Spokane; Three Springs Natural Area on the Spokane River.
47.698192°, -117.329723°. Datum: WGS 84. Coordinate uncertainty: 20000 meters. Georeferenced by Dan Post. Coordinate Source: Digital Map.
Growing with Juncus acuminatus, Salix lasiandra and Rorippa nasturtium-aquatica. Origin: Native.
WTU 411646; Barcode: WTU-V-026014
Kathy Ahlenslager 409    23 Jun 1994
with Robert Bursik
70. Elodea canadensis Michx.
Database ID
3155591 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
411646 
Barcode
WTU-V-026014 
Other Numbers
 
Family
Hydrocharitaceae 
Name on Specimen
Elodea canadensis Michx. 
Accepted Name
Elodea canadensis Michx. 
Annotation History
1. Elodea canadensis Michx.  
Type Notes
 
Collector
Kathy Ahlenslager 
Collection #
409 
Other Collectors
Robert Bursik 
Date Collected
23 Jun 1994 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Spokane 
Locality
Spokane; Three Springs Natural Area on the Spokane River. 
Elevation
 
Coordinates
47.698192°, -117.329723° 
Site Description
Growing with Juncus acuminatus, Salix lasiandra and Rorippa nasturtium-aquatica. 
Specimen Notes
 
Phenology
 
Origin
Native 
Cultivated?
No 
Imaged?
Yes 

Hydrocharitaceae
71. Elodea canadensis Rich.
U.S.A., Washington, Pend Oreille County:
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.
Elev. 2090 ft. T34N R44E S18 NW1/4 SE1/4. Datum: WGS 84. Coordinate uncertainty: 10000 meters. Georeferenced by Crystal Shin. Coordinate Source: GeoLocate.
Origin: Native.
WTU 411644; Barcode: WTU-V-026015
Kathy Ahlenslager 629    25 Jul 2000
71. Elodea canadensis Rich.
Database ID
3155592 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
411644 
Barcode
WTU-V-026015 
Other Numbers
 
Family
Hydrocharitaceae 
Name on Specimen
Elodea canadensis Rich. 
Accepted Name
Elodea canadensis Michx. 
Annotation History
1. Elodea canadensis Rich.  
Type Notes
 
Collector
Kathy Ahlenslager 
Collection #
629 
Other Collectors
 
Date Collected
25 Jul 2000 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Pend Oreille 
Locality
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. 
Elevation
2090 ft. 
Coordinates
T34N R44E S18 NW1/4 SE1/4 
Site Description
 
Specimen Notes
 
Phenology
 
Origin
Native 
Cultivated?
No 
Imaged?
Yes 

Hydrocharitaceae
72. Elodea canadensis Michx.
U.S.A., Washington, Pend Oreille County:
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.
Elev. 3165 ft. T37N R42E S3 SW1/4. Datum: WGS 84. Coordinate uncertainty: 600 meters. Georeferenced by Joseph Stormer. Coordinate Source: Digital Map.
Lakeshore and forest edge; mixed subalpine fir/spruce/lodgepole pine. Origin: Native.
WTU 411645; Barcode: WTU-V-026016
Jean Wood 3407    14 Aug 1995
72. Elodea canadensis Michx.
Database ID
3155593 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
411645 
Barcode
WTU-V-026016 
Other Numbers
 
Family
Hydrocharitaceae 
Name on Specimen
Elodea canadensis Michx. 
Accepted Name
Elodea canadensis Michx. 
Annotation History
1. Elodea canadensis Michx.  
Type Notes
 
Collector
Jean Wood 
Collection #
3407 
Other Collectors
 
Date Collected
14 Aug 1995 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Pend Oreille 
Locality
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. 
Elevation
3165 ft. 
Coordinates
T37N R42E S3 SW1/4 
Site Description
Lakeshore and forest edge; mixed subalpine fir/spruce/lodgepole pine. 
Specimen Notes
 
Phenology
 
Origin
Native 
Cultivated?
No 
Imaged?
Yes 

Hydrocharitaceae
73. Elodea canadensis Michx.
U.S.A., Oregon, Multnomah County:
Columbia River. South shore. Beach upstream of James Gleason Boat Ramp.
45.5023° N, 122.5922° W. Coordinate Source: Specimen Label.
Wrack at low tide. Phenology: Vegetative. Origin: Native.
WTU 417606; Barcode: WTU-V-038087
Dominic Maze 389    11 Sep 2016
73. Elodea canadensis Michx.
Database ID
3210041 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
417606 
Barcode
WTU-V-038087 
Other Numbers
 
Family
Hydrocharitaceae 
Name on Specimen
Elodea canadensis Michx. 
Accepted Name
Elodea canadensis Michx. 
Annotation History
1. Elodea canadensis Michx.  
Type Notes
 
Collector
Dominic Maze 
Collection #
389 
Other Collectors
 
Date Collected
11 Sep 2016 
Verbatim Date
 
Country
U.S.A. 
State or Province
Oregon 
County
Multnomah 
Locality
Columbia River. South shore. Beach upstream of James Gleason Boat Ramp. 
Elevation
 
Coordinates
45.5023° N, 122.5922° W 
Site Description
Wrack at low tide. 
Specimen Notes
 
Phenology
Vegetative 
Origin
Native 
Cultivated?
No 
Imaged?
Yes 

Hydrocharitaceae
74. Elodea canadensis Michx.
U.S.A., Oregon, Multnomah County:
Blue Lake
45.5542° N, 122.4453° W. Coordinate Source: Specimen Label.
In water column of lake.¶Nymphaea, Potamogeton crispus, Myriophyllum spicatum, Stuckenia pectinata. Vegetative. Phenology: Vegetative. Origin: Native.
WTU 417520; Barcode: WTU-V-037674
Dominic Maze 371    4 Jul 2016
74. Elodea canadensis Michx.
Database ID
3220942 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
417520 
Barcode
WTU-V-037674 
Other Numbers
 
Family
Hydrocharitaceae 
Name on Specimen
Elodea canadensis Michx. 
Accepted Name
Elodea canadensis Michx. 
Annotation History
1. Elodea canadensis Michx.  
Type Notes
 
Collector
Dominic Maze 
Collection #
371 
Other Collectors
 
Date Collected
4 Jul 2016 
Verbatim Date
 
Country
U.S.A. 
State or Province
Oregon 
County
Multnomah 
Locality
Blue Lake 
Elevation
 
Coordinates
45.5542° N, 122.4453° W 
Site Description
In water column of lake.¶Nymphaea, Potamogeton crispus, Myriophyllum spicatum, Stuckenia pectinata. 
Specimen Notes
Vegetative. 
Phenology
Vegetative 
Origin
Native 
Cultivated?
No 
Imaged?
Yes 

Hydrocharitaceae
75. Elodea canadensis Michx.
U.S.A., Washington, Clallam County:
Olympic National Forest. Beaver Lake.
Elev. 182 m. 48.1137° N, 124.24568° W. Datum: WGS 84. Coordinate uncertainty: 20 meters. Coordinate Source: Field notes.
Shoreline of Lake dominated by Spiraea douglasii and Salix sp. and adjacent waters to 1.5 meters deep. Common and abundant in water to 2 meters deep. Phenology: Fertile. Origin: Native.
WTU 419838; Barcode: WTU-V-043594
David Giblin 6272    28 Aug 2018
75. Elodea canadensis Michx.
Database ID
3231748 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
419838 
Barcode
WTU-V-043594 
Other Numbers
 
Family
Hydrocharitaceae 
Name on Specimen
Elodea canadensis Michx. 
Accepted Name
Elodea canadensis Michx. 
Annotation History
1. Elodea canadensis Michx.
    Annotated by David Giblin, 24 2018. Sources: Draft Revised Flora of PNW.  
Type Notes
 
Collector
David Giblin 
Collection #
6272 
Other Collectors
 
Date Collected
28 Aug 2018 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Clallam 
Locality
Olympic National Forest. Beaver Lake. 
Elevation
182 m. 
Coordinates
48.1137° N, 124.24568° W 
Site Description
Shoreline of Lake dominated by Spiraea douglasii and Salix sp. and adjacent waters to 1.5 meters deep.  
Specimen Notes
Common and abundant in water to 2 meters deep.  
Phenology
Fertile 
Origin
Native 
Cultivated?
No 
Imaged?
Yes 

Hydrocharitaceae
76. Elodea canadensis Michx.
U.S.A., Washington, Jefferson County:
Crocker Lake at Washington Department of Fish and Wildlife access area near boat ramp.
Elev. 57 m. 47.93605° N, 122.88454° W. Datum: WGS 84. Coordinate uncertainty: 50 meters. Coordinate Source: GPS.
Water to 1 meter deep; emergent vegetation dominated by Typha latifolia. Common and abundant in water to 1 meter deep. Phenology: Vegetative. Origin: Native.
WTU 419847; Barcode: WTU-V-043598
David Giblin 6340    29 Aug 2018
76. Elodea canadensis Michx.
Database ID
3231765 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
419847 
Barcode
WTU-V-043598 
Other Numbers
 
Family
Hydrocharitaceae 
Name on Specimen
Elodea canadensis Michx. 
Accepted Name
Elodea canadensis Michx. 
Annotation History
1. Elodea canadensis Michx.
    Annotated by David Giblin, 25 2018. Sources: Draft Revised Flora of PNW.  
Type Notes
 
Collector
David Giblin 
Collection #
6340 
Other Collectors
 
Date Collected
29 Aug 2018 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Jefferson 
Locality
Crocker Lake at Washington Department of Fish and Wildlife access area near boat ramp.  
Elevation
57 m. 
Coordinates
47.93605° N, 122.88454° W 
Site Description
Water to 1 meter deep; emergent vegetation dominated by Typha latifolia. 
Specimen Notes
Common and abundant in water to 1 meter deep.  
Phenology
Vegetative 
Origin
Native 
Cultivated?
No 
Imaged?
Yes 

Hydrocharitaceae
77. Elodea canadensis Rich.
U.S.A., Washington, Pierce County:
JBLM, TA-12, Chambers Lake.
Elev. 98 m. 47.01395° N, 122.53185° W. Datum: WGS 84. Coordinate Source: GPS.
Occasional, 5-10m offshore with other emergent aquatics. Origin: Native.
WTU
Peter W. Dunwiddie PWD 16-371    13 Jul 2016
with Peter Zika, Sarah Krock
77. Elodea canadensis Rich.
Database ID
3245212 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
 
Barcode
 
Other Numbers
 
Family
Hydrocharitaceae 
Name on Specimen
Elodea canadensis Rich. 
Accepted Name
Elodea canadensis Michx. 
Annotation History
1. Elodea canadensis Rich.
    Annotated by Peter Zika.  
Type Notes
 
Collector
Peter W. Dunwiddie 
Collection #
PWD 16-371 
Other Collectors
Peter Zika, Sarah Krock 
Date Collected
13 Jul 2016 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Pierce 
Locality
JBLM, TA-12, Chambers Lake. 
Elevation
98 m. 
Coordinates
47.01395° N, 122.53185° W 
Site Description
Occasional, 5-10m offshore with other emergent aquatics. 
Specimen Notes
 
Phenology
 
Origin
Native 
Cultivated?
No 
Imaged?
No 

Hydrocharitaceae
78. Elodea canadensis Rich.
U.S.A., Washington, Wahkiakum County:
East shore of Deep River near mouth, 1 air mile northwest of Miller Point; Grays Bay, Columbia River.
Elev. 2 m. 46° 18.7' N, 123° 42.8' W; T10N R8W S31. Coordinate Source: Specimen Label.
Freshwater intertidal marsh, mudflats and higher marsh, with Scirpus triqueter, Lilaeopsis.
WTU 373997; Barcode: WTU-V-058854
Peter F. Zika 22265    30 Aug 2005
with David Giblin, Cathy Maxwell, Ben Legler.
78. Elodea canadensis Rich.
Database ID
3279689 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
373997 
Barcode
WTU-V-058854 
Other Numbers
 
Family
Hydrocharitaceae 
Name on Specimen
Elodea canadensis Rich. 
Accepted Name
Elodea canadensis Michx. 
Annotation History
1. Elodea canadensis Rich.
    Annotated by P. F. Zika, 2005.  
Type Notes
 
Collector
Peter F. Zika 
Collection #
22265 
Other Collectors
David Giblin, Cathy Maxwell, Ben Legler. 
Date Collected
30 Aug 2005 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Wahkiakum 
Locality
East shore of Deep River near mouth, 1 air mile northwest of Miller Point; Grays Bay, Columbia River.  
Elevation
2 m. 
Coordinates
46° 18.7' N, 123° 42.8' W; T10N R8W S31 
Site Description
Freshwater intertidal marsh, mudflats and higher marsh, with Scirpus triqueter, Lilaeopsis.  
Specimen Notes
 
Phenology
 
Origin
 
Cultivated?
No 
Imaged?
Yes 

Hydrocharitaceae
79. Elodea canadensis Michx.
U.S.A., Oregon, Wasco County:
Deschutes River Recreation Area, Heritage Landing.
Elev. 175 ft. 45.633326° N, 120.914858° W. Datum: WGS 84. Coordinate Source: GPS.
In shallow flowing water, with Myriophyllum quitense, Potamogeton crispus, Stuckenia pectinata. Origin: Native.
WTU
Peter F. Zika PWD-19-323    30 Jul 2019
with Peter Dunwiddie
79. Elodea canadensis Michx.
Database ID
3281619 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
 
Barcode
 
Other Numbers
 
Family
Hydrocharitaceae 
Name on Specimen
Elodea canadensis Michx. 
Accepted Name
Elodea canadensis Michx. 
Annotation History
1. Elodea canadensis Michx.
    Annotated by Peter F. Zika, 2019. Sources: Flora PNW, 2nd.  
Type Notes
 
Collector
Peter F. Zika 
Collection #
PWD-19-323 
Other Collectors
Peter Dunwiddie 
Date Collected
30 Jul 2019 
Verbatim Date
 
Country
U.S.A. 
State or Province
Oregon 
County
Wasco 
Locality
Deschutes River Recreation Area, Heritage Landing. 
Elevation
175 ft. 
Coordinates
45.633326° N, 120.914858° W 
Site Description
In shallow flowing water, with Myriophyllum quitense, Potamogeton crispus, Stuckenia pectinata. 
Specimen Notes
 
Phenology
 
Origin
Native 
Cultivated?
No 
Imaged?
No 

Hydrocharitaceae
80. Elodea canadensis Michx.
U.S.A., Washington, Walla Walla County:
McNary National Wildlife Refuge, Villard Ponds, Burbank Slough Unit.
46.19307° N, 119.02046° W. Datum: WGS 84. Coordinate Source: GPS.
Slough off the main channel of Columbia River, 1-1.5m deep. Common in shallow water (<0.5m) with Potamogeton berchtoldii. Phenology: Fruits. Origin: Native.
WTU
Peter F. Zika PWD-19-524    10 Aug 2019
with Peter Dunwiddie
80. Elodea canadensis Michx.
Database ID
3282266 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
 
Barcode
 
Other Numbers
 
Family
Hydrocharitaceae 
Name on Specimen
Elodea canadensis Michx. 
Accepted Name
Elodea canadensis Michx. 
Annotation History
1. Elodea canadensis Michx.
    Annotated by Peter F. Zika, 2019. Sources: Flora PNW, 2nd.  
Type Notes
 
Collector
Peter F. Zika 
Collection #
PWD-19-524 
Other Collectors
Peter Dunwiddie 
Date Collected
10 Aug 2019 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Walla Walla 
Locality
McNary National Wildlife Refuge, Villard Ponds, Burbank Slough Unit. 
Elevation
 
Coordinates
46.19307° N, 119.02046° W 
Site Description
Slough off the main channel of Columbia River, 1-1.5m deep. 
Specimen Notes
Common in shallow water (<0.5m) with Potamogeton berchtoldii. 
Phenology
Fruits 
Origin
Native 
Cultivated?
No 
Imaged?
No 

Hydrocharitaceae
81. Elodea canadensis Michx.
U.S.A., Washington, Benton County:
W shore of Columbia River, near N end of Nelson Island, Richmond.
Elev. 100 m. 46.3093° N, 119.2623° W.
In 1 m of water, with Ceratophyllum demersum, Potamogeton illinoensis, Heteranthera dubia, Myriophyllum spicatum. Submerged aquatic. Phenology: Vegetative. Origin: Native.
WTU 423942; Barcode: WTU-V-065103
P. F. Zika 30469    26 Oct 2020
81. Elodea canadensis Michx.
Database ID
3462259 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
423942 
Barcode
WTU-V-065103 
Other Numbers
 
Family
Hydrocharitaceae 
Name on Specimen
Elodea canadensis Michx. 
Accepted Name
Elodea canadensis Michx. 
Annotation History
1. Elodea canadensis Michx.  
Type Notes
 
Collector
P. F. Zika 
Collection #
30469 
Other Collectors
 
Date Collected
26 Oct 2020 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Benton 
Locality
W shore of Columbia River, near N end of Nelson Island, Richmond. 
Elevation
100 m. 
Coordinates
46.3093° N, 119.2623° W 
Site Description
In 1 m of water, with Ceratophyllum demersum, Potamogeton illinoensis, Heteranthera dubia, Myriophyllum spicatum. 
Specimen Notes
Submerged aquatic. 
Phenology
Vegetative 
Origin
Native 
Cultivated?
No 
Imaged?
Yes 

Hydrocharitaceae
82. Elodea canadensis Michx.
U.S.A., Washington, Jefferson County:
Olympic National Forest. Lake Quinault. Falls Creek Campground shoreline.
Elev. 125 m. 47.4697° N, 123.8476° W. Datum: WGS 84. Coordinate uncertainty: 50 meters. Coordinate Source: Digital map. Invalid coordinates (located outside county bounds).
Cobbly shoreline area with occasional sandy/silty areas both in the water and along the shoreline. Locally common in silty soil on water to 40 cm deep; rhizomatous.
WTU 427148; Barcode: WTU-V-074925
David Giblin 7173    28 Aug 2019
82. Elodea canadensis Michx.
Database ID
3500502 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
427148 
Barcode
WTU-V-074925 
Other Numbers
 
Family
Hydrocharitaceae 
Name on Specimen
Elodea canadensis Michx. 
Accepted Name
Elodea canadensis Michx. 
Annotation History
1. Elodea canadensis Michx.
    Annotated by David Giblin, 16 2021. Sources: Flora PNW, 2nd.  
Type Notes
 
Collector
David Giblin 
Collection #
7173 
Other Collectors
 
Date Collected
28 Aug 2019 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Jefferson 
Locality
Olympic National Forest. Lake Quinault. Falls Creek Campground shoreline. 
Elevation
125 m. 
Coordinates
47.4697° N, 123.8476° W 
Site Description
Cobbly shoreline area with occasional sandy/silty areas both in the water and along the shoreline. 
Specimen Notes
Locally common in silty soil on water to 40 cm deep; rhizomatous. 
Phenology
 
Origin
 
Cultivated?
No 
Imaged?
Yes 

Tab-delimited Text File:
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Database Field Descriptions:
Database ID
Each of our backend databases assigns a unique and persistent integer ID to each specimen record. A GUID (globally unique identifier) can be formed from this by combining it with the herbarium and collection acronyms (example: WTU-VP-12733).
Herbarium
Every herbarium is referred to by a unique acronym. Ours is WTU, which stands for Washington Territorial University. Our database also includes some specimens housed at NOCA (North Cascades National Park Herbarium) and MORA (Mount Rainier National Park Herbarium). For a complete listing of herbarium acronyms, see Index Herbariorum.
Collection
WTU's specimens are physically housed in separate collections according to taxonomic groups: Vascular Plants, Bryophytes, Algae, Lichens, and Fungi.
Dataset
Some specimens are grouped into "Datasets," representing such things as incorporated herbaria or major collecting projects.
Accession
Each of WTU's Vascular Plant specimens is assigned an accession number. Our other collections lack accession numbers (see Barcode instead). Ideally, each specimen would have a unique accession number, but this fails in practice. Some accession numbers include "JWT" after the number; these indicate specimens originating from the herbarium of J. William Thompson that were integrated into WTU's collections but not re-accessioned with WTU numbers. Accession numbers followed by an "A", "B", or other single letter represent sheets with multiple collections mounted on them, all using the same accession number.
Barcode
Our Bryophyte, Algae, Lichen, Fungi, and some Vascular Plant specimens are assigned pre-printed barcode stickers. These follow the format "WTU-C-######", where C represents a code for the collection (one of: V, B, A, L, F) and ###### represents a zero-padded, six-digit number.
Other Numbers
Specimens collected from North Cascades and Mount Rainier National Parks are assigned National Park Service accession and catalog numbers. These numbers are listed here.
Family
The scientific name of the family. Our database generally uses AGPIII and other current sources for vascular plant family names. However, our physical Vascular Plant collection is organized by the older Englerian sequence.
Accepted Name
For Vascular Plants, this gives the accepted name by which the specimen is currently known. The accepted name is derived by looking up the most recent annotation name in a synonymy table and finding its corresponding accepted name.
Annotation History
The sequence of annotations and scientific names given on the physical specimen is listed here, in order from the first to most recent. We treat the name on the original label as the first annotation.
Type Notes
If this is a type specimen, then information about its type status (holotype, isotype, etc.) and the name(s) for which it is a type is provided here.
Collector
The person who collected this specimen, as given on the label, and whose name is associated with the collection number on the label. If no collector name is given, we enter "unknown" into this field.
Collection #
A unique number assigned to the specimen by the collector. Different collectors use different numbering schemes; these may include the addition of prefixes (such as their initials or the year) or suffixes (such as an A or B). In the database, any prefixes and suffixes are included in the Collector's Number field exactly as they appear on the specimen label. When no collector number is given, we type "s.n." in this field.
Other Collectors
Other collectors that are listed on the label along with the primary collector, but whose collection number was not assigned to this specimen.
Date Collected
The date on which the specimen was collected, split up between day, month, and year in the database. Months are stored as nubmers (1-12) but displayed as three-letter abbreviations. Years are alway 4-digits long. Occasionally the label may give a range of dates. In such cases, the first date in the range is used as the collection date, and the entire collection date is entered into the Verbatim Date field as it appears on the label. If no date is given, then the date fields are left blank and a note is made in the Verbatim Date field.
Verbatim Date
The literal date string as displayed on the label; only used for dates that cannot be represented by a single day, month, and year.
Country
Name of the country from which the specimen was collected. Specimens from the United States of America are entered as "U.S.A."
State or Province
Name of the state or province from which the specimen was collected, if given on the label. U.S. states are spelled out in full.
County
Name of the county, municipality, borough, parish, or equivalent political unit from which the specimen was collected, if given on the label. The designation (such as "county") is not included in the field value.
Locality
A text description of the location where the specimen was collected, as given on the specimen label. May include national park, national forest, and other land use designations. Older collections often have short and imprecise locality data. Detailed locality data for rare species (threatened, endangered, sensitive, watch, ...) is included in our database but omitted from the search results.
Elevation
Elevations may be given either in feet or meters, and may include a minimum and maximum elevation, representing a range.
Coordinates
May include TRS/PLSS (township, range, section, quarter, etc.), latitude/longitude, and UTM. Coordinates for arare species are included in our database but omittedfrom the search results.
Site Description
This field includes all label information characterizing the site, such habitat, vegetation zone/association, substrate, slope, moisture, associated species, and so on - as the information appears on the specimen label.
Specimen Notes
Includes any characteristics pertaining to the plant specimen itself, such as flower color, fruit length, and plant height, along with information about the species, such as abundance and the precise location and micro-habitat where collected. Also includes any notes or text on the specimen that does not better fit into another field.
Phenology
Specifies the sexual maturity/condition of the specimen, such as flowering, fruiting, cone-bearing, spore-bearing, fertile, or sterile. Phenology is generally not given on the label; instead the person entering the record examines the specimen and selects the appropriate value.
Origin
Specifies whether the specimen is native or introduced to the state or country where it was collected. Origin data is rarely found on the specimen label; instead, it is entered during data entry either from a lookup table or from the date entry personnel's own knowledge. Origin data should be considered supplemental information, and should not be relied on as authoritative.
Cultivated
A Yes/No flag indicating if this is a cultivated specimen. Cultivated specimens generally do not represent valid distribution records and should be excluded from range maps or other geographic analyses.


Disclaimer:

WTU makes a reasonable effort to prevent and correct data entry errors; however, we cannot guarantee that our database is free from typos, misidentifications, or inaccurate label data. Please use the information at your own discretion. Error corrections and comments can be sent to Ben Legler or David Giblin.