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Field Descriptions
46 matching records found.
Label Query: Genus = "Azolla", Species = "filiculoides"
Salviniaceae
1. Azolla filiculoides Lam.
U.S.A., Washington, Mason County:
Near Potlatch.
47.37639°, -123.14806°. Datum: WGS 84. Coordinate uncertainty: 5000 meters. Georeferenced by WTU Staff. Coordinate Source: GeoLocate.
Surface of large waterlily pond. Origin: Native.
WTU 9753JWT-A
J. William Thompson 5929    30 Mar 1931
1. Azolla filiculoides Lam.
Database ID
6973 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
9753JWT-A 
Barcode
 
Other Numbers
 
Family
Salviniaceae 
Name on Specimen
Azolla filiculoides Lam. 
Accepted Name
Azolla filiculoides Lam. 
Annotation History
1. Azolla filiculoides Lam.
    Annotated by A. R. Sweet, L. V. Hills, 1969.
2. Azolla filiculoides Lam.
    Annotated by Ed Alverson, 30 2007. Sources: FNA.  
Type Notes
 
Collector
J. William Thompson 
Collection #
5929 
Other Collectors
 
Date Collected
30 Mar 1931 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Mason 
Locality
Near Potlatch. 
Elevation
 
Coordinates
47.37639°, -123.14806° 
Site Description
Surface of large waterlily pond. 
Specimen Notes
 
Phenology
 
Origin
Native 
Cultivated?
No 
Imaged?
No 

Salviniaceae
2. Azolla filiculoides Lam.
U.S.A., Washington
In stagnant slough along Yakima River.
WTU 70989
W. C. Muenscher 16190    12 Sep 1943
2. Azolla filiculoides Lam.
Database ID
32907 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
70989 
Barcode
 
Other Numbers
 
Family
Salviniaceae 
Name on Specimen
Azolla filiculoides Lam. 
Accepted Name
Azolla filiculoides Lam. 
Annotation History
1. Azolla caroliniana Willd.
2. Azolla filiculoides Lam.
    Annotated by A. R. Sweet/L.V. Hills, 1969.
3. Azolla filiculoides Lam.
    Annotated by Ed Alverson, 30 2007. Sources: FNA.  
Type Notes
 
Collector
W. C. Muenscher 
Collection #
16190 
Other Collectors
 
Date Collected
12 Sep 1943 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
 
Locality
In stagnant slough along Yakima River. 
Elevation
 
Coordinates
 
Site Description
 
Specimen Notes
 
Phenology
 
Origin
 
Cultivated?
No 
Imaged?
No 

Salviniaceae
3. Azolla filiculoides Lam.
U.S.A., Washington, King County:
North 110st, seattle.
47.60639°, -122.33083°. Datum: WGS 84. Coordinate uncertainty: 10000 meters. Georeferenced by WTU Staff. Coordinate Source: GeoLocate.
WTU 103870
W. J. Eyerdam 6338    20 Aug 1944
3. Azolla filiculoides Lam.
Database ID
32914 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
103870 
Barcode
 
Other Numbers
 
Family
Salviniaceae 
Name on Specimen
Azolla filiculoides Lam. 
Accepted Name
Azolla filiculoides Lam. 
Annotation History
1. Azolla filiculoides Lam.
    Annotated by A.R. SWEET, 1969.
2. Azolla filiculoides Lam.
    Annotated by Ed Alverson, 30 2007. Sources: FNA.  
Type Notes
 
Collector
W. J. Eyerdam 
Collection #
6338 
Other Collectors
 
Date Collected
20 Aug 1944 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
King 
Locality
North 110st, seattle. 
Elevation
 
Coordinates
47.60639°, -122.33083° 
Site Description
 
Specimen Notes
 
Phenology
 
Origin
 
Cultivated?
No 
Imaged?
Yes 

Salviniaceae
4. Azolla filiculoides Lam.
U.S.A., Washington, Mason County:
Mason County: Lilly ponds near Potlach.
47.36863°, -123.15857°. Datum: WGS 84. Coordinate uncertainty: 500 meters. Georeferenced by WTU Staff. Coordinate Source: GeoLocate.
Lilly ponds. Origin: Native.
WTU 306233; Barcode: WTU-V-058028
Harold E. Helmrich 394    19 Aug 1933
4. Azolla filiculoides Lam.
Database ID
32915 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
306233 
Barcode
WTU-V-058028 
Other Numbers
 
Family
Salviniaceae 
Name on Specimen
Azolla filiculoides Lam. 
Accepted Name
Azolla filiculoides Lam. 
Annotation History
1. Azolla filiculoides Lam.
2. Azolla filiculoides Lam.
    Annotated by Ed Alverson, 30 2007. Sources: FNA. Remarks: WTU 
Type Notes
 
Collector
Harold E. Helmrich 
Collection #
394 
Other Collectors
 
Date Collected
19 Aug 1933 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Mason 
Locality
Mason County: Lilly ponds near Potlach. 
Elevation
 
Coordinates
47.36863°, -123.15857° 
Site Description
Lilly ponds. 
Specimen Notes
 
Phenology
 
Origin
Native 
Cultivated?
No 
Imaged?
Yes 

Salviniaceae
5. Azolla filiculoides Lam.
U.S.A., Oregon, Columbia County:
Along Clatskanie creek, 5 miles above the town of Clatskanie on the Louis Thompson's Ranch.
WTU 120767
J. W. Thompson s.n.    21 Jul 1948
5. Azolla filiculoides Lam.
Database ID
32917 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
120767 
Barcode
 
Other Numbers
 
Family
Salviniaceae 
Name on Specimen
Azolla filiculoides Lam. 
Accepted Name
Azolla filiculoides Lam. 
Annotation History
1. Azolla filiculoides Lam.
    Annotated by A. R. Sweet, 1969.
2. Azolla filiculoides Lam.
    Annotated by Ed Alverson, 30 2007. Sources: FNA.  
Type Notes
 
Collector
J. W. Thompson 
Collection #
s.n. 
Other Collectors
 
Date Collected
21 Jul 1948 
Verbatim Date
 
Country
U.S.A. 
State or Province
Oregon 
County
Columbia 
Locality
Along Clatskanie creek, 5 miles above the town of Clatskanie on the Louis Thompson's Ranch. 
Elevation
 
Coordinates
 
Site Description
 
Specimen Notes
 
Phenology
 
Origin
 
Cultivated?
No 
Imaged?
Yes 

Salviniaceae
6. Azolla filiculoides Lam.
U.S.A., Oregon, Lake County:
Fremont forest.
Elev. 5400 ft.
WTU 282356
Forman F157    9 Jul 1935
6. Azolla filiculoides Lam.
Database ID
32921 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
282356 
Barcode
 
Other Numbers
 
Family
Salviniaceae 
Name on Specimen
Azolla filiculoides Lam. 
Accepted Name
Azolla filiculoides Lam. 
Annotation History
1. Azolla filiculoides Lam.
2. Azolla filiculoides Lam.
    Annotated by Ed Alverson, 30 2007. Sources: FNA.  
Type Notes
 
Collector
Forman 
Collection #
F157 
Other Collectors
 
Date Collected
9 Jul 1935 
Verbatim Date
 
Country
U.S.A. 
State or Province
Oregon 
County
Lake 
Locality
Fremont forest. 
Elevation
5400 ft. 
Coordinates
 
Site Description
 
Specimen Notes
 
Phenology
 
Origin
 
Cultivated?
No 
Imaged?
Yes 

Salviniaceae
7. Azolla filiculoides Lam.
U.S.A., Oregon, Coos County:
On a log pond.
WTU 148062
McCulloch s.n.    7 Oct 1952
7. Azolla filiculoides Lam.
Database ID
32923 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
148062 
Barcode
 
Other Numbers
 
Family
Salviniaceae 
Name on Specimen
Azolla filiculoides Lam. 
Accepted Name
Azolla filiculoides Lam. 
Annotation History
1. Azolla filiculoides Lam.
    Annotated by A. N. Steward.
2. Azolla filiculoides Lam.
    Annotated by Ed Alverson, 30 2007. Sources: FNA.  
Type Notes
 
Collector
McCulloch 
Collection #
s.n. 
Other Collectors
 
Date Collected
7 Oct 1952 
Verbatim Date
 
Country
U.S.A. 
State or Province
Oregon 
County
Coos 
Locality
On a log pond. 
Elevation
 
Coordinates
 
Site Description
 
Specimen Notes
 
Phenology
 
Origin
 
Cultivated?
No 
Imaged?
Yes 

Salviniaceae
8. Azolla filiculoides Lam.
U.S.A., Oregon, Benton County:
West of Corvallis off of Oak Creek road in a small pond by the road going to Bald Hill park.
Elev. 314 ft. T11S R5W S57.
WTU 331036
Richard R. Halse 4501    20 Jun 1992
8. Azolla filiculoides Lam.
Database ID
32925 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
331036 
Barcode
 
Other Numbers
 
Family
Salviniaceae 
Name on Specimen
Azolla filiculoides Lam. 
Accepted Name
Azolla filiculoides Lam. 
Annotation History
1. Azolla filiculoides Lam.
2. Azolla filiculoides Lam.
    Annotated by Ed Alverson, 30 2007. Sources: FNA.  
Type Notes
 
Collector
Richard R. Halse 
Collection #
4501 
Other Collectors
 
Date Collected
20 Jun 1992 
Verbatim Date
 
Country
U.S.A. 
State or Province
Oregon 
County
Benton 
Locality
West of Corvallis off of Oak Creek road in a small pond by the road going to Bald Hill park. 
Elevation
314 ft. 
Coordinates
T11S R5W S57 
Site Description
 
Specimen Notes
 
Phenology
 
Origin
 
Cultivated?
No 
Imaged?
Yes 

Salviniaceae
9. Azolla filiculoides Lam.
U.S.A., Washington, Yakima County:
Yakima River bars, Yakima Greenway Park, Yakima.
Elev. 1000 ft. 46° 37' N, 120° 29' W; T13N R19 S18.
Mossy-looking aquatic in smallish side-channel. "Ruffled" appearance.
WTU 344533
Sarah Gage G&R 078    23 May 1992
with Sharon Rodman
9. Azolla filiculoides Lam.
Database ID
32937 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
344533 
Barcode
 
Other Numbers
 
Family
Salviniaceae 
Name on Specimen
Azolla filiculoides Lam. 
Accepted Name
Azolla filiculoides Lam. 
Annotation History
1. Azolla sp.
2. Azolla filiculoides Lam.
    Annotated by Ed Alverson, 30 2007. Sources: FNA.  
Type Notes
 
Collector
Sarah Gage 
Collection #
G&R 078 
Other Collectors
Sharon Rodman 
Date Collected
23 May 1992 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Yakima 
Locality
Yakima River bars, Yakima Greenway Park, Yakima. 
Elevation
1000 ft. 
Coordinates
46° 37' N, 120° 29' W; T13N R19 S18 
Site Description
 
Specimen Notes
Mossy-looking aquatic in smallish side-channel. "Ruffled" appearance. 
Phenology
 
Origin
 
Cultivated?
No 
Imaged?
Yes 

Salviniaceae
10. Azolla filiculoides Lam.
U.S.A., Oregon, Columbia County:
On the ranch of Clyde Holmes 2 miles above Clatskanie.
Small spring fed pond. Phenology: Fertile. Origin: Native.
WTU 358330
A. R. Sweet 1003    20 Aug 1969
with A. L. Sweet, C. Young
10. Azolla filiculoides Lam.
Database ID
34872 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
358330 
Barcode
 
Other Numbers
 
Family
Salviniaceae 
Name on Specimen
Azolla filiculoides Lam. 
Accepted Name
Azolla filiculoides Lam. 
Annotation History
1. Azolla filiculoides Lam.
2. Azolla filiculoides Lam.
    Annotated by Ed Alverson, 30 2007. Sources: FNA.  
Type Notes
 
Collector
A. R. Sweet 
Collection #
1003 
Other Collectors
A. L. Sweet, C. Young 
Date Collected
20 Aug 1969 
Verbatim Date
 
Country
U.S.A. 
State or Province
Oregon 
County
Columbia 
Locality
On the ranch of Clyde Holmes 2 miles above Clatskanie. 
Elevation
 
Coordinates
 
Site Description
Small spring fed pond. 
Specimen Notes
 
Phenology
Fertile 
Origin
Native 
Cultivated?
No 
Imaged?
Yes 

Salviniaceae
11. Azolla filiculoides Lam.
U.S.A., Washington, Mason County:
Lilly ponds near Potlach.
47.36863°, -123.15857°. Datum: WGS 84. Coordinate uncertainty: 500 meters. Georeferenced by WTU Staff. Coordinate Source: GeoLocate.
Lily ponds. Phenology: Fertile. Origin: Introduced.
WTU 358331
Harold E. Helmrich 394    19 Aug 1933
11. Azolla filiculoides Lam.
Database ID
34877 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
358331 
Barcode
 
Other Numbers
 
Family
Salviniaceae 
Name on Specimen
Azolla filiculoides Lam. 
Accepted Name
Azolla filiculoides Lam. 
Annotation History
1. Azolla filiculoides Lam.
    Annotated by G. N. Jones.
2. Azolla filiculoides Lam.
    Annotated by A. R. Sweet.
3. Azolla filiculoides Lam.
    Annotated by Ed Alverson, 30 2007. Sources: FNA.  
Type Notes
 
Collector
Harold E. Helmrich 
Collection #
394 
Other Collectors
 
Date Collected
19 Aug 1933 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Mason 
Locality
Lilly ponds near Potlach. 
Elevation
 
Coordinates
47.36863°, -123.15857° 
Site Description
Lily ponds. 
Specimen Notes
 
Phenology
Fertile 
Origin
Introduced 
Cultivated?
No 
Imaged?
Yes 

Salviniaceae
12. Azolla filiculoides Lam.
U.S.A., Washington, Skagit County:
Skagit Wildlife Area at mouth of Skagit River; ditch along dike on northwest side of freshwater Slough ca. 1/2 mile southwest of boat launch at end of Mann road.
Elev. 5 ft. 48° 19' 19" N, 122° 22' 32" W. Datum: NAD 27.
Quiet, murky freshwater ditch beneath Alnus rubra. Abundant in ditch, forming large red mats on water surface. Phenology: Vegetative. Origin: Native.
WTU 382362
Ben Legler 2380    5 Mar 2005
12. Azolla filiculoides Lam.
Database ID
111770 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
382362 
Barcode
 
Other Numbers
 
Family
Salviniaceae 
Name on Specimen
Azolla filiculoides Lam. 
Accepted Name
Azolla filiculoides Lam. 
Annotation History
1. Azolla mexicana Presl.
    Annotated by Ben Legler, 2005.
2. Azolla filiculoides Lam.
    Annotated by Ben Legler, 16 2014. Remarks: Leaf trichomes prominent, unicellular. 
Type Notes
 
Collector
Ben Legler 
Collection #
2380 
Other Collectors
 
Date Collected
5 Mar 2005 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Skagit 
Locality
Skagit Wildlife Area at mouth of Skagit River; ditch along dike on northwest side of freshwater Slough ca. 1/2 mile southwest of boat launch at end of Mann road. 
Elevation
5 ft. 
Coordinates
48° 19' 19" N, 122° 22' 32" W 
Site Description
Quiet, murky freshwater ditch beneath Alnus rubra. 
Specimen Notes
Abundant in ditch, forming large red mats on water surface. 
Phenology
Vegetative 
Origin
Native 
Cultivated?
No 
Imaged?
Yes 

Salviniaceae
13. Azolla filiculoides Lam.
U.S.A., Washington, Skamania County:
On southwest shore of Franz Lake, Franz Lake National Wildlife Area 2 miles west of Skamania.
Elev. 25 ft. 45° 36' 14" N, 122° 4' 48" W. Datum: NAD 27. Coordinate Source: Digital map.
Shallow lake shore dominated by Juncus effusus, Paspalum distichum. Plants floating among emergent vegetation; reddish-purple in color; not common. Phenology: Vegetative. Origin: Native.
WTU 382618
Ben Legler 2370    16 Dec 2004
13. Azolla filiculoides Lam.
Database ID
156230 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
382618 
Barcode
 
Other Numbers
 
Family
Salviniaceae 
Name on Specimen
Azolla filiculoides Lam. 
Accepted Name
Azolla filiculoides Lam. 
Annotation History
1. Azolla mexicana Presl.
    Annotated by Ben Legler, 29 2005. Sources: Flora of PNW.
2. Azolla filiculoides Lam.
    Annotated by Ben Legler, 16 2014. Remarks: Leaf trichomes unicellular. 
Type Notes
 
Collector
Ben Legler 
Collection #
2370 
Other Collectors
 
Date Collected
16 Dec 2004 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Skamania 
Locality
On southwest shore of Franz Lake, Franz Lake National Wildlife Area 2 miles west of Skamania. 
Elevation
25 ft. 
Coordinates
45° 36' 14" N, 122° 4' 48" W 
Site Description
Shallow lake shore dominated by Juncus effusus, Paspalum distichum. 
Specimen Notes
Plants floating among emergent vegetation; reddish-purple in color; not common. 
Phenology
Vegetative 
Origin
Native 
Cultivated?
No 
Imaged?
No 

Salviniaceae
14. Azolla filiculoides Lam.
U.S.A., Oregon, Clackamas County:
Oswego Lake.
Floating in shallow water. Small reddish or reddish brown. Rare here. Origin: Native.
WTU 9753JWT-B
M. W. Gorman 5061    19 Jul 1920
14. Azolla filiculoides Lam.
Database ID
161746 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
9753JWT-B 
Barcode
 
Other Numbers
 
Family
Salviniaceae 
Name on Specimen
Azolla filiculoides Lam. 
Accepted Name
Azolla filiculoides Lam. 
Annotation History
1. Azolla filiculoides Lam.
2. Azolla mexicana Presl.
    Annotated by A. R. Sweet/L. V. Hills, 1969. Remarks: One pitted megaspore observed.
3. Azolla filiculoides Lam.
    Annotated by Ed Alverson, 30 2007. Sources: FNA.  
Type Notes
 
Collector
M. W. Gorman 
Collection #
5061 
Other Collectors
 
Date Collected
19 Jul 1920 
Verbatim Date
 
Country
U.S.A. 
State or Province
Oregon 
County
Clackamas 
Locality
Oswego Lake. 
Elevation
 
Coordinates
 
Site Description
Floating in shallow water. 
Specimen Notes
Small reddish or reddish brown. Rare here. 
Phenology
 
Origin
Native 
Cultivated?
No 
Imaged?
No 

Salviniaceae
15. Azolla filiculoides Lam.
U.S.A., Washington, Jefferson County:
Near Willamette Street, east of Winona Wetland, Quimper Wildlife Corridor, Port Townsend, Quimper Peninsula.
Elev. 32 ft. 48° 8' N, 122° 48' W; T31N R1W S33.
Small retention pond, with Ranunculus repens, Ranunculus sceleratus. Columnar unicellular hairs; plants red or green, common. Phenology: Vegetative. Origin: Native.
WTU 368507
P. F. Zika 22475    4 Oct 2005
with F. Weinmann
15. Azolla filiculoides Lam.
Database ID
165984 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
368507 
Barcode
 
Other Numbers
 
Family
Salviniaceae 
Name on Specimen
Azolla filiculoides Lam. 
Accepted Name
Azolla filiculoides Lam. 
Annotation History
1. Azolla filiculoides Lam.  
Type Notes
 
Collector
P. F. Zika 
Collection #
22475 
Other Collectors
F. Weinmann 
Date Collected
4 Oct 2005 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Jefferson 
Locality
Near Willamette Street, east of Winona Wetland, Quimper Wildlife Corridor, Port Townsend, Quimper Peninsula. 
Elevation
32 ft. 
Coordinates
48° 8' N, 122° 48' W; T31N R1W S33 
Site Description
Small retention pond, with Ranunculus repens, Ranunculus sceleratus. 
Specimen Notes
Columnar unicellular hairs; plants red or green, common. 
Phenology
Vegetative 
Origin
Native 
Cultivated?
No 
Imaged?
Yes 

Salviniaceae
16. Azolla filiculoides Lam.
U.S.A., Washington, Pacific County:
East side of Smith Anderson Road, circa 1.5 kilometers north of Route 105, north end of Willapa Bay, Heather.
Elev. 16 ft. 46° 44.8' N, 124° 4' W.
Roadside ditch among cranberry farms, full sun with Lemna turionifera, Callitriche stagnalis. Floating aquatic, green or purple-tinted, common. Phenology: Vegetative. Origin: Native.
WTU 368508
Peter F. Zika 23455    15 Aug 2007
16. Azolla filiculoides Lam.
Database ID
165985 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
368508 
Barcode
 
Other Numbers
 
Family
Salviniaceae 
Name on Specimen
Azolla filiculoides Lam. 
Accepted Name
Azolla filiculoides Lam. 
Annotation History
1. Azolla filiculoides Lam.  
Type Notes
 
Collector
Peter F. Zika 
Collection #
23455 
Other Collectors
 
Date Collected
15 Aug 2007 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Pacific 
Locality
East side of Smith Anderson Road, circa 1.5 kilometers north of Route 105, north end of Willapa Bay, Heather. 
Elevation
16 ft. 
Coordinates
46° 44.8' N, 124° 4' W 
Site Description
Roadside ditch among cranberry farms, full sun with Lemna turionifera, Callitriche stagnalis. 
Specimen Notes
Floating aquatic, green or purple-tinted, common. 
Phenology
Vegetative 
Origin
Native 
Cultivated?
No 
Imaged?
Yes 

Salviniaceae
17. Azolla filiculoides Lam.
U.S.A., Washington, Clark County:
Near town of Ridgefield.
Elev. 32 ft. 45° 50' N, 122° 45' W.
Ditches, with Spirodela polyrrhiza, Wolffia columbiana, Wolffia brasiliensis, Wolffia borealis, Lemna minuta, Lemna turionifera. Floating aquatic, blue-green to reddish purple, locally common. Phenology: Vegetative. Origin: Native.
WTU 368666
Peter F. Zika 23451A    20 Aug 2007
17. Azolla filiculoides Lam.
Database ID
166703 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
368666 
Barcode
 
Other Numbers
 
Family
Salviniaceae 
Name on Specimen
Azolla filiculoides Lam. 
Accepted Name
Azolla filiculoides Lam. 
Annotation History
1. Azolla filiculoides Lam.  
Type Notes
 
Collector
Peter F. Zika 
Collection #
23451A 
Other Collectors
 
Date Collected
20 Aug 2007 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Clark 
Locality
Near town of Ridgefield. 
Elevation
32 ft. 
Coordinates
45° 50' N, 122° 45' W 
Site Description
Ditches, with Spirodela polyrrhiza, Wolffia columbiana, Wolffia brasiliensis, Wolffia borealis, Lemna minuta, Lemna turionifera. 
Specimen Notes
Floating aquatic, blue-green to reddish purple, locally common. 
Phenology
Vegetative 
Origin
Native 
Cultivated?
No 
Imaged?
Yes 

Salviniaceae
18. Azolla filiculoides Lam.
U.S.A., Oregon, Lane County:
Below East Bank Bike Path, Delta Ponds, just east of Willamette River and north of Valley River Center Mall, Eugene.
Elev. 393 ft. 44° 4.5' N, 123° 6.7' W.
Shallow water. Red floating aquatic. Phenology: Vegetative. Origin: Native.
WTU 368667
P. F. Zika 22632    24 Oct 2005
with E. R. Alverson
18. Azolla filiculoides Lam.
Database ID
166704 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
368667 
Barcode
 
Other Numbers
 
Family
Salviniaceae 
Name on Specimen
Azolla filiculoides Lam. 
Accepted Name
Azolla filiculoides Lam. 
Annotation History
1. Azolla filiculoides Lam.  
Type Notes
 
Collector
P. F. Zika 
Collection #
22632 
Other Collectors
E. R. Alverson 
Date Collected
24 Oct 2005 
Verbatim Date
 
Country
U.S.A. 
State or Province
Oregon 
County
Lane 
Locality
Below East Bank Bike Path, Delta Ponds, just east of Willamette River and north of Valley River Center Mall, Eugene. 
Elevation
393 ft. 
Coordinates
44° 4.5' N, 123° 6.7' W 
Site Description
Shallow water. 
Specimen Notes
Red floating aquatic. 
Phenology
Vegetative 
Origin
Native 
Cultivated?
No 
Imaged?
Yes 

Salviniaceae
19. Azolla filiculoides Lam.
U.S.A., Washington, Klickitat County:
North side of Route 14, Bingen Gap, north shore of Columbia River.
Elev. 82 ft. 45° 42' N, 121° 25.6' W; T3N R11E S34.
Roadcut, full sun, with Lactuca serriola, Typha latifolia, Scrophularia. Columnar unicellular hairs; common in pool at base of seeping cliff. Phenology: Vegetative. Origin: Native.
WTU 368668
Peter F. Zika 22614    13 Oct 2005
19. Azolla filiculoides Lam.
Database ID
166705 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
368668 
Barcode
 
Other Numbers
 
Family
Salviniaceae 
Name on Specimen
Azolla filiculoides Lam. 
Accepted Name
Azolla filiculoides Lam. 
Annotation History
1. Azolla filiculoides Lam.  
Type Notes
 
Collector
Peter F. Zika 
Collection #
22614 
Other Collectors
 
Date Collected
13 Oct 2005 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Klickitat 
Locality
North side of Route 14, Bingen Gap, north shore of Columbia River. 
Elevation
82 ft. 
Coordinates
45° 42' N, 121° 25.6' W; T3N R11E S34 
Site Description
Roadcut, full sun, with Lactuca serriola, Typha latifolia, Scrophularia. 
Specimen Notes
Columnar unicellular hairs; common in pool at base of seeping cliff. 
Phenology
Vegetative 
Origin
Native 
Cultivated?
No 
Imaged?
Yes 

Salviniaceae
20. Azolla filiculoides Lam.
U.S.A., Washington, Grays Harbor County:
Cranberry Road, Grayland.
Elev. 16 ft. 46° 48.4' N, 124° 5.2' W.
Artificial ponds and ditches among cranberry fields, common floating aquatic, with Elodea, Callitriche, Spirodela polyrrhiza. Green or purple.
WTU 368820
Peter F. Zika 23462    15 Aug 2007
20. Azolla filiculoides Lam.
Database ID
166879 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
368820 
Barcode
 
Other Numbers
 
Family
Salviniaceae 
Name on Specimen
Azolla filiculoides Lam. 
Accepted Name
Azolla filiculoides Lam. 
Annotation History
1. Azolla filiculoides Lam.  
Type Notes
 
Collector
Peter F. Zika 
Collection #
23462 
Other Collectors
 
Date Collected
15 Aug 2007 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Grays Harbor 
Locality
Cranberry Road, Grayland. 
Elevation
16 ft. 
Coordinates
46° 48.4' N, 124° 5.2' W 
Site Description
Artificial ponds and ditches among cranberry fields, common floating aquatic, with Elodea, Callitriche, Spirodela polyrrhiza. 
Specimen Notes
Green or purple. 
Phenology
 
Origin
 
Cultivated?
No 
Imaged?
Yes 

Salviniaceae
21. Azolla filiculoides Lam.
U.S.A., Oregon, Clatsop County:
Between Ziak-Gnat Creek Lane and railroad, circa 1 kilometer northeast of Brownsmead, east of Long Island, south shore of Columbia River.
Elev. 22 ft. 46° 13.5' N, 123° 31.8' W; T9N R7W S34.
With Wolffia brasiliensis, W. columbiana, Lemna minor, Spirodela polyrrhiza, in moderately deep water marsh, full sun. Uncommon floating aquatic. Phenology: Vegetative. Origin: Introduced.
WTU 379248
Peter F. Zika 19192    30 Sep 2003
21. Azolla filiculoides Lam.
Database ID
176019 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
379248 
Barcode
 
Other Numbers
 
Family
Salviniaceae 
Name on Specimen
Azolla filiculoides Lam. 
Accepted Name
Azolla filiculoides Lam. 
Annotation History
1. Azolla filiculoides Lam.  
Type Notes
 
Collector
Peter F. Zika 
Collection #
19192 
Other Collectors
 
Date Collected
30 Sep 2003 
Verbatim Date
 
Country
U.S.A. 
State or Province
Oregon 
County
Clatsop 
Locality
Between Ziak-Gnat Creek Lane and railroad, circa 1 kilometer northeast of Brownsmead, east of Long Island, south shore of Columbia River. 
Elevation
22 ft. 
Coordinates
46° 13.5' N, 123° 31.8' W; T9N R7W S34 
Site Description
With Wolffia brasiliensis, W. columbiana, Lemna minor, Spirodela polyrrhiza, in moderately deep water marsh, full sun. 
Specimen Notes
Uncommon floating aquatic. 
Phenology
Vegetative 
Origin
Introduced 
Cultivated?
No 
Imaged?
Yes 

Salviniaceae
22. Azolla filiculoides Lam.
U.S.A., Washington, Yakima County:
Yakima River at Washington Department of Fish and Wildlife parking area on North Meyers Road approximately 500 meters south of Interstate 82.
Elev. 242 m. 46.40067° N, 120.281° W. Datum: WGS 84. Coordinate uncertainty: 10 meters. Coordinate Source: Digital map.
Slack water at boat ramp. Surrounding upland highly disturbed. Locally common and abundant in shallow water; forming a dense layer on water surface. Phenology: Fertile. Origin: Native.
WTU 414713; Barcode: WTU-V-031892
David Giblin 5476    5 Nov 2014
22. Azolla filiculoides Lam.
Database ID
191083 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
414713 
Barcode
WTU-V-031892 
Other Numbers
 
Family
Salviniaceae 
Name on Specimen
Azolla filiculoides Lam. 
Accepted Name
Azolla filiculoides Lam. 
Annotation History
1. Azolla filiculoides Lam.
    Annotated by Ed Alverson, 19 2014. Sources: FNA. Remarks: "Hairs" on upper leaves only show one cell, also roots not hairy. 
Type Notes
 
Collector
David Giblin 
Collection #
5476 
Other Collectors
 
Date Collected
5 Nov 2014 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Yakima 
Locality
Yakima River at Washington Department of Fish and Wildlife parking area on North Meyers Road approximately 500 meters south of Interstate 82. 
Elevation
242 m. 
Coordinates
46.40067° N, 120.281° W 
Site Description
Slack water at boat ramp. Surrounding upland highly disturbed. 
Specimen Notes
Locally common and abundant in shallow water; forming a dense layer on water surface. 
Phenology
Fertile 
Origin
Native 
Cultivated?
No 
Imaged?
Yes 

Salviniaceae
23. Azolla filiculoides Lam.
U.S.A., Washington, Pierce County:
Spanaway Marsh area.
Elev. 110 m. 47.09743° N, 122.45229° W. Datum: WGS 84. Coordinate uncertainty: 10 meters. Coordinate Source: Digital map.
Stream flowing through marsh area with Typha latifolia common. Scattered and floating among Lemna minuta in still water. Phenology: Vegetative. Origin: Native.
WTU 408232; Barcode: WTU-V-021389
David Giblin 5498    4 Apr 2015
23. Azolla filiculoides Lam.
Database ID
193054 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
408232 
Barcode
WTU-V-021389 
Other Numbers
 
Family
Salviniaceae 
Name on Specimen
Azolla filiculoides Lam. 
Accepted Name
Azolla filiculoides Lam. 
Annotation History
1. Azolla filiculoides Lam.
    Annotated by David Giblin, 4 2015. Sources: FNA.  
Type Notes
 
Collector
David Giblin 
Collection #
5498 
Other Collectors
 
Date Collected
4 Apr 2015 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Pierce 
Locality
Spanaway Marsh area. 
Elevation
110 m. 
Coordinates
47.09743° N, 122.45229° W 
Site Description
Stream flowing through marsh area with Typha latifolia common. 
Specimen Notes
Scattered and floating among Lemna minuta in still water. 
Phenology
Vegetative 
Origin
Native 
Cultivated?
No 
Imaged?
Yes 

Salviniaceae
24. Azolla filiculoides Lam.
U.S.A., Washington, Island County:
Deception Pass State Park. Cranberry Lake. East and southeast side of lake.
Elev. 2 m. 48.3905° N, 122.6502° W. Datum: WGS 84. Coordinate uncertainty: 100 meters. Georeferenced by Maria Yousoufian. Coordinate Source: Digital map.
Forested wetland with Picea sitchensis in overstory and Alnus rubra and Gaultheria shallon in understory. Floating in small pool; locally abundant. Phenology: Vegetative. Origin: Native.
WTU 417877; Barcode: WTU-V-038900
Jeff Walker 516    24 Aug 2010
with Ben Legler, David Giblin
24. Azolla filiculoides Lam.
Database ID
2490455 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
417877 
Barcode
WTU-V-038900 
Other Numbers
 
Family
Salviniaceae 
Name on Specimen
Azolla filiculoides Lam. 
Accepted Name
Azolla filiculoides Lam. 
Annotation History
1. Azolla filiculoides Lam.
    Annotated by Ben Legler, 28 2015.  
Type Notes
 
Collector
Jeff Walker 
Collection #
516 
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. East and southeast side of lake. 
Elevation
2 m. 
Coordinates
48.3905° N, 122.6502° W 
Site Description
Forested wetland with Picea sitchensis in overstory and Alnus rubra and Gaultheria shallon in understory. 
Specimen Notes
Floating in small pool; locally abundant. 
Phenology
Vegetative 
Origin
Native 
Cultivated?
No 
Imaged?
Yes 

Salviniaceae
25. Azolla filiculoides Lam.
U.S.A., Washington, King County:
South side of Magnuson Park in restoration area just west of Lake Shore Drive opposite boat launch; Seattle.
Elev. 8 m. 47.676919° N, 122.253291° W. Datum: WGS 84. Coordinate uncertainty: 4 meters. Georeferenced by Ben Legler. Coordinate Source: GPS.
Small, man-made, habitat restoration pond rimmed by Typha latifolia, Juncus effusus, and Scirpus cyperinus. Leaf papillae unicellular, prominently projecting out and forward from leaf surface; fronds reddish, dichotomously branched, all less than 1 cm diameter; scattered around pond margin where floating on water surface. Phenology: Vegetative.
WTU 407784; Barcode: WTU-V-021799
Ben Legler 13407    13 Dec 2014
with Sara Legler
25. Azolla filiculoides Lam.
Database ID
2782202 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
407784 
Barcode
WTU-V-021799 
Other Numbers
 
Family
Salviniaceae 
Name on Specimen
Azolla filiculoides Lam. 
Accepted Name
Azolla filiculoides Lam. 
Annotation History
1. Azolla filiculoides Lam.
    Annotated by Ben Legler, 2014.  
Type Notes
 
Collector
Ben Legler 
Collection #
13407 
Other Collectors
Sara Legler 
Date Collected
13 Dec 2014 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
King 
Locality
South side of Magnuson Park in restoration area just west of Lake Shore Drive opposite boat launch; Seattle. 
Elevation
8 m. 
Coordinates
47.676919° N, 122.253291° W 
Site Description
Small, man-made, habitat restoration pond rimmed by Typha latifolia, Juncus effusus, and Scirpus cyperinus. 
Specimen Notes
Leaf papillae unicellular, prominently projecting out and forward from leaf surface; fronds reddish, dichotomously branched, all less than 1 cm diameter; scattered around pond margin where floating on water surface. 
Phenology
Vegetative 
Origin
 
Cultivated?
No 
Imaged?
Yes 

Salviniaceae
26. Azolla filiculoides Lam.
U.S.A., Washington, Kittitas County:
Yakima River Canyon along bank of Yakima River.
Elev. 425 m. 46.88515° N, 120.47976° W. Datum: WGS 84. Coordinate uncertainty: 10 meters. Coordinate Source: Digital map.
Shallow backwater channel with deep, loose, silty soil; area surrounded by Phalaris arundinacea. Locally common on surface of water and forming loose, open mats. Phenology: Vegetative. Origin: Native.
WTU 407722; Barcode: WTU-V-021899
David Giblin 5821    5 Nov 2015
26. Azolla filiculoides Lam.
Database ID
2789146 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
407722 
Barcode
WTU-V-021899 
Other Numbers
 
Family
Salviniaceae 
Name on Specimen
Azolla filiculoides Lam. 
Accepted Name
Azolla filiculoides Lam. 
Annotation History
1. Azolla filiculoides Lam.
    Annotated by David Giblin, 5 2015. Sources: FNA.  
Type Notes
 
Collector
David Giblin 
Collection #
5821 
Other Collectors
 
Date Collected
5 Nov 2015 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Kittitas 
Locality
Yakima River Canyon along bank of Yakima River. 
Elevation
425 m. 
Coordinates
46.88515° N, 120.47976° W 
Site Description
Shallow backwater channel with deep, loose, silty soil; area surrounded by Phalaris arundinacea. 
Specimen Notes
Locally common on surface of water and forming loose, open mats. 
Phenology
Vegetative 
Origin
Native 
Cultivated?
No 
Imaged?
Yes 

Salviniaceae
27. Azolla filiculoides Lam.
U.S.A., Washington, King County:
Along a constructed stream channel in wetland restoration site on northeast side of confluence of Bear Creek and Evans Creek; Redmond.
Elev. 16 m. 47.680761° N, 122.089885° W. Datum: WGS 84. Coordinate uncertainty: 4 meters. Georeferenced by Ben Legler. Coordinate Source: GPS.
Old field converted to wetland and bisected by constructed stream channel now flooded by a beaver dam; margins quickly filling with small Populus trichocarpa saplings, Salix lucida, and Impatiens capensis; shallow water with Typha latifolia, Juncus acuminatus, Carex. Fronds green or strongly tinged with dark red; cells on upper leaf surface slightly projecting forward, not stacked; plants common, floating on water surface. Phenology: Vegetative.
WTU
Ben Legler 14410    24 Sep 2016
27. Azolla filiculoides Lam.
Database ID
2834435 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
 
Barcode
 
Other Numbers
 
Family
Salviniaceae 
Name on Specimen
Azolla filiculoides Lam. 
Accepted Name
Azolla filiculoides Lam. 
Annotation History
1. Azolla filiculoides Lam.
    Annotated by Ben Legler, 2016.  
Type Notes
 
Collector
Ben Legler 
Collection #
14410 
Other Collectors
 
Date Collected
24 Sep 2016 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
King 
Locality
Along a constructed stream channel in wetland restoration site on northeast side of confluence of Bear Creek and Evans Creek; Redmond. 
Elevation
16 m. 
Coordinates
47.680761° N, 122.089885° W 
Site Description
Old field converted to wetland and bisected by constructed stream channel now flooded by a beaver dam; margins quickly filling with small Populus trichocarpa saplings, Salix lucida, and Impatiens capensis; shallow water with Typha latifolia, Juncus acuminatus, Carex. 
Specimen Notes
Fronds green or strongly tinged with dark red; cells on upper leaf surface slightly projecting forward, not stacked; plants common, floating on water surface. 
Phenology
Vegetative 
Origin
 
Cultivated?
No 
Imaged?
No 

Salviniaceae
28. Azolla filiculoides Lam.
U.S.A., Washington, Pierce County:
Northeast shore of Silver Lake, near resort on South Silver Lake Road East, Eatonville, 15.3 air kilometers northwest of Dobbs Mountain.
Elev. 185 m. 46.886° N, 122.361° W. Coordinate Source: Specimen Label.
In shallow water; full sun, with Lemna turionifera. Floating aquatic; common. Origin: Native.
WTU 409773; Barcode: WTU-V-023800
Peter F. Zika 28104    16 Jul 2016
28. Azolla filiculoides Lam.
Database ID
3102634 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
409773 
Barcode
WTU-V-023800 
Other Numbers
 
Family
Salviniaceae 
Name on Specimen
Azolla filiculoides Lam. 
Accepted Name
Azolla filiculoides Lam. 
Annotation History
1. Azolla filiculoides Lam.  
Type Notes
 
Collector
Peter F. Zika 
Collection #
28104 
Other Collectors
 
Date Collected
16 Jul 2016 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Pierce 
Locality
Northeast shore of Silver Lake, near resort on South Silver Lake Road East, Eatonville, 15.3 air kilometers northwest of Dobbs Mountain. 
Elevation
185 m. 
Coordinates
46.886° N, 122.361° W 
Site Description
In shallow water; full sun, with Lemna turionifera. 
Specimen Notes
Floating aquatic; common. 
Phenology
 
Origin
Native 
Cultivated?
No 
Imaged?
Yes 

Salviniaceae
29. Azolla filiculoides Lam.
U.S.A., Washington, Pierce County:
Oxbow, Training Area 18, Joint Base Lewis-McChord, 100 meters southeast of bridge over Nisqually River.
Elev. 30 m. 46.9864° N, 122.63099° W. Coordinate Source: Specimen Label.
Full sun or partial shade, with Ricciocarpus natans, Spirodela, Wolffia brasiliensis, W. columbiana, Potamogeton natans, Elodea canadensis, Ceratophyllum, Carex cusickii, Alnus rubra. Floating purple-red aquatic, blue-green when stranded, occasional, shallow water and along margin of beaver dam. Origin: Native.
WTU 412129; Barcode: WTU-V-026583
Peter F. Zika 28236    12 Aug 2016
with Sarah Krock
29. Azolla filiculoides Lam.
Database ID
3142326 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
412129 
Barcode
WTU-V-026583 
Other Numbers
 
Family
Salviniaceae 
Name on Specimen
Azolla filiculoides Lam. 
Accepted Name
Azolla filiculoides Lam. 
Annotation History
1. Azolla filiculoides Lam.  
Type Notes
 
Collector
Peter F. Zika 
Collection #
28236 
Other Collectors
Sarah Krock 
Date Collected
12 Aug 2016 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Pierce 
Locality
Oxbow, Training Area 18, Joint Base Lewis-McChord, 100 meters southeast of bridge over Nisqually River. 
Elevation
30 m. 
Coordinates
46.9864° N, 122.63099° W 
Site Description
Full sun or partial shade, with Ricciocarpus natans, Spirodela, Wolffia brasiliensis, W. columbiana, Potamogeton natans, Elodea canadensis, Ceratophyllum, Carex cusickii, Alnus rubra. 
Specimen Notes
Floating purple-red aquatic, blue-green when stranded, occasional, shallow water and along margin of beaver dam. 
Phenology
 
Origin
Native 
Cultivated?
No 
Imaged?
Yes 

Salviniaceae
30. Azolla filiculoides Lam.
U.S.A., Oregon, Linn County:
Excavated pools between Dead River and SE shore of Willamette River, Truax Island, 11.1 air km SE of Dimple Hill.
Elev. 60 m. 44.5836° N, 123.1837° W. Coordinate Source: Specimen Label.
On water surface, with Wolffia columbiana, W. brasiliensis, excavated pools. Floating aquatic; full sun, occasional on water surface. Origin: Native.
WTU 412746; Barcode: WTU-V-027283
Peter F. Zika 28555    11 Oct 2016
with Richard Brainerd.
30. Azolla filiculoides Lam.
Database ID
3146953 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
412746 
Barcode
WTU-V-027283 
Other Numbers
 
Family
Salviniaceae 
Name on Specimen
Azolla filiculoides Lam. 
Accepted Name
Azolla filiculoides Lam. 
Annotation History
1. Azolla filiculoides Lam.  
Type Notes
 
Collector
Peter F. Zika 
Collection #
28555 
Other Collectors
Richard Brainerd.  
Date Collected
11 Oct 2016 
Verbatim Date
 
Country
U.S.A. 
State or Province
Oregon 
County
Linn 
Locality
Excavated pools between Dead River and SE shore of Willamette River, Truax Island, 11.1 air km SE of Dimple Hill.  
Elevation
60 m. 
Coordinates
44.5836° N, 123.1837° W 
Site Description
On water surface, with Wolffia columbiana, W. brasiliensis, excavated pools.  
Specimen Notes
Floating aquatic; full sun, occasional on water surface.  
Phenology
 
Origin
Native 
Cultivated?
No 
Imaged?
Yes 

Salviniaceae
31. Azolla filiculoides Lam.
U.S.A., Washington, Clark County:
Pond below SW side of Route 501, 0.5 air km S of Vancouver Lake, Vancouver.
Elev. 5 m. 45.6579° N, 122.7335° W. Coordinate Source: Specimen Label.
Aquatic floating on water surface, with Lemna turionifera, Phalaras arundinacea. Pink, abundant. Origin: Native.
WTU 417388; Barcode: WTU-V-037419
Peter F. Zika 29166    9 Feb 2018
31. Azolla filiculoides Lam.
Database ID
3218487 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
417388 
Barcode
WTU-V-037419 
Other Numbers
 
Family
Salviniaceae 
Name on Specimen
Azolla filiculoides Lam. 
Accepted Name
Azolla filiculoides Lam. 
Annotation History
1. Azolla filiculoides Lam.  
Type Notes
 
Collector
Peter F. Zika 
Collection #
29166 
Other Collectors
 
Date Collected
9 Feb 2018 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Clark 
Locality
Pond below SW side of Route 501, 0.5 air km S of Vancouver Lake, Vancouver. 
Elevation
5 m. 
Coordinates
45.6579° N, 122.7335° W 
Site Description
Aquatic floating on water surface, with Lemna turionifera, Phalaras arundinacea. 
Specimen Notes
Pink, abundant. 
Phenology
 
Origin
Native 
Cultivated?
No 
Imaged?
Yes 

Salviniaceae
32. Azolla filiculoides Lam.
U.S.A., California, Tehama County:
T30N, R4W, undesignated Section of San Buenaventura Land Grant; along a dirt roat; about 200 yards west of the Sacramento River; Anderson River Park; 0.7 miles (air) upstream from Stillwater Creek Confluence; 1.8 miles (air) northwest of Balls Ferry Road exit from Interstate 5 in Anderson.
Elev. 383 ft. 40° 28' 14.9" N, 122° 15' 41.5" W. Coordinate Source: GPS.
Floating on water of a small pond; riparian woodland. Normal size plants; common. Origin: Native.
WTU 418027; Barcode: WTU-V-039906
Lowell Ahart 21,309    25 Aug 2016
with John Dittes
32. Azolla filiculoides Lam.
Database ID
3235968 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
418027 
Barcode
WTU-V-039906 
Other Numbers
 
Family
Salviniaceae 
Name on Specimen
Azolla filiculoides Lam. 
Accepted Name
Azolla filiculoides Lam. 
Annotation History
1. Azolla filiculoides Lam.  
Type Notes
 
Collector
Lowell Ahart 
Collection #
21,309 
Other Collectors
John Dittes 
Date Collected
25 Aug 2016 
Verbatim Date
 
Country
U.S.A. 
State or Province
California 
County
Tehama 
Locality
T30N, R4W, undesignated Section of San Buenaventura Land Grant; along a dirt roat; about 200 yards west of the Sacramento River; Anderson River Park; 0.7 miles (air) upstream from Stillwater Creek Confluence; 1.8 miles (air) northwest of Balls Ferry Road exit from Interstate 5 in Anderson.  
Elevation
383 ft. 
Coordinates
40° 28' 14.9" N, 122° 15' 41.5" W 
Site Description
Floating on water of a small pond; riparian woodland.  
Specimen Notes
Normal size plants; common.  
Phenology
 
Origin
Native 
Cultivated?
No 
Imaged?
Yes 

Salviniaceae
33. Azolla filiculoides Lam.
U.S.A., Washington, Klickitat County:
Shallow backwater on the N shore of Lake Umatilla, 2.8 km WSW of the SW end of Crow Butte.
Elev. 80 m. 45.83825° N, 119.89238° W. Datum: WGS 84. Coordinate Source: GPS.
Shallow water over basalt, full sun, with Spirodela polyrhiza, Butomus umbellatus, Sagittaria latifolia. Floating aquatic, fertile; ¶USAC Columbia River Plant Survey. Phenology: Spores. Origin: Native.
WTU 418884; Barcode: WTU-V-041960
Peter W. Dunwiddie PWD 18-417    11 Aug 2018
with Peter F. Zika
33. Azolla filiculoides Lam.
Database ID
3239052 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
418884 
Barcode
WTU-V-041960 
Other Numbers
 
Family
Salviniaceae 
Name on Specimen
Azolla filiculoides Lam. 
Accepted Name
Azolla filiculoides Lam. 
Annotation History
1. Azolla filiculoides Lam.  
Type Notes
 
Collector
Peter W. Dunwiddie 
Collection #
PWD 18-417 
Other Collectors
Peter F. Zika 
Date Collected
11 Aug 2018 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Klickitat 
Locality
Shallow backwater on the N shore of Lake Umatilla, 2.8 km WSW of the SW end of Crow Butte. 
Elevation
80 m. 
Coordinates
45.83825° N, 119.89238° W 
Site Description
Shallow water over basalt, full sun, with Spirodela polyrhiza, Butomus umbellatus, Sagittaria latifolia. 
Specimen Notes
Floating aquatic, fertile; ¶USAC Columbia River Plant Survey. 
Phenology
Spores 
Origin
Native 
Cultivated?
No 
Imaged?
Yes 

Salviniaceae
34. Azolla filiculoides Lam.
U.S.A., Washington, Skamania County:
Home Valley Waterfront Park. Sailboard Beach access area approximately 200 meters east and west along shoreline.
Elev. 34 m. 45.7094° N, 121.78011° W. Datum: WGS 84. Coordinate uncertainty: 200 meters. Coordinate Source: GPS.
Shoreline, wetland, and adjacent shallow waters; shoreline dominated by Amorpha fruticosa, Salix sp. (narrow leaves), and Persicarnia sp.; Myriophyllum sp. common in shallow water. Uncommon in marsh area. Phenology: Vegetative. Origin: Native.
WTU 420219; Barcode: WTU-V-044651
David Giblin 6426    12 Sep 2018
34. Azolla filiculoides Lam.
Database ID
3246078 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
420219 
Barcode
WTU-V-044651 
Other Numbers
 
Family
Salviniaceae 
Name on Specimen
Azolla filiculoides Lam. 
Accepted Name
Azolla filiculoides Lam. 
Annotation History
1. Azolla filiculoides Lam.
    Annotated by David Giblin, 23 2018. Sources: Flora PNW, 2nd.  
Type Notes
 
Collector
David Giblin 
Collection #
6426 
Other Collectors
 
Date Collected
12 Sep 2018 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Skamania 
Locality
Home Valley Waterfront Park. Sailboard Beach access area approximately 200 meters east and west along shoreline. 
Elevation
34 m. 
Coordinates
45.7094° N, 121.78011° W 
Site Description
Shoreline, wetland, and adjacent shallow waters; shoreline dominated by Amorpha fruticosa, Salix sp. (narrow leaves), and Persicarnia sp.; Myriophyllum sp. common in shallow water.  
Specimen Notes
Uncommon in marsh area.  
Phenology
Vegetative 
Origin
Native 
Cultivated?
No 
Imaged?
Yes 

Salviniaceae
35. Azolla filiculoides Lam.
U.S.A., Washington, Skamania County:
Icehouse Lake and adjacent old beaver ponds on north end. North side of Highway 14 at intersection with Bridge of the Gods.
Elev. 49 m. 45.66138° N, 121.90633° W. Datum: WGS 84. Coordinate uncertainty: 200 meters. Coordinate Source: GPS.
Eutrophic ponds with shoreline of main pond dominated by Iris pseudacorus, Typha latifolia, Leersia oryzoides and Juncus effusus; beaver ponds less disturbed with Bidens cernua common along shoreline with Equisetum telmateia. Common in beaver ponds and forming film on water surface. [Mixed collection with 420617 and 420618; filed under Azolla filiculoides]. Phenology: Vegetative. Origin: Native.
WTU 420619; Barcode: WTU-V-048435
David Giblin 6456    13 Sep 2018
35. Azolla filiculoides Lam.
Database ID
3246754 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
420619 
Barcode
WTU-V-048435 
Other Numbers
 
Family
Salviniaceae 
Name on Specimen
Azolla filiculoides Lam. 
Accepted Name
Azolla filiculoides Lam. 
Annotation History
1. Azolla filiculoides Lam.
    Annotated by David Giblin, 25 2018. Sources: Flora PNW, 2nd.  
Type Notes
 
Collector
David Giblin 
Collection #
6456 
Other Collectors
 
Date Collected
13 Sep 2018 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Skamania 
Locality
Icehouse Lake and adjacent old beaver ponds on north end. North side of Highway 14 at intersection with Bridge of the Gods. 
Elevation
49 m. 
Coordinates
45.66138° N, 121.90633° W 
Site Description
Eutrophic ponds with shoreline of main pond dominated by Iris pseudacorus, Typha latifolia, Leersia oryzoides and Juncus effusus; beaver ponds less disturbed with Bidens cernua common along shoreline with Equisetum telmateia. 
Specimen Notes
Common in beaver ponds and forming film on water surface. [Mixed collection with 420617 and 420618; filed under Azolla filiculoides]. 
Phenology
Vegetative 
Origin
Native 
Cultivated?
No 
Imaged?
Yes 

Salviniaceae
36. Azolla filiculoides Lam.
U.S.A., Washington, Grays Harbor County:
Black River. Washington Department of Fish and Wildlife boat launch area on south side of Highway 12.
Elev. 30 m. 46.82992° N, 123.18567° W. Datum: WGS 84. Coordinate uncertainty: 100 meters. Georeferenced by David Giblin. Coordinate Source: Digital map.
Shallow water along edge of river with cobbly bottom. Common along edge of river, especially in backwater areas. Phenology: Vegetative. Origin: Native.
WTU
David Giblin 3646    7 Oct 2010
36. Azolla filiculoides Lam.
Database ID
3260690 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
 
Barcode
 
Other Numbers
 
Family
Salviniaceae 
Name on Specimen
Azolla filiculoides Lam. 
Accepted Name
Azolla filiculoides Lam. 
Annotation History
1. Azolla filiculoides Lam.
    Annotated by David Giblin, 12 2019. Sources: Flora PNW, 2nd.  
Type Notes
 
Collector
David Giblin 
Collection #
3646 
Other Collectors
 
Date Collected
7 Oct 2010 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Grays Harbor 
Locality
Black River. Washington Department of Fish and Wildlife boat launch area on south side of Highway 12. 
Elevation
30 m. 
Coordinates
46.82992° N, 123.18567° W 
Site Description
Shallow water along edge of river with cobbly bottom. 
Specimen Notes
Common along edge of river, especially in backwater areas. 
Phenology
Vegetative 
Origin
Native 
Cultivated?
No 
Imaged?
No 

Salviniaceae
37. Azolla filiculoides Lam.
U.S.A., Hawaii
Southeast shore of Kahana Bay, near Trout Farm Road, Route 83.¶Windward northeast shoreof O'ahu.
21° 33.5' N, 157° 52' W. Coordinate Source: Specimen Label.
Uncommon aquatic, floating in taro paddy, and in mud on shoreline, partial shade, with Lemna aequinoctialis.
WTU 372345; Barcode: WTU-V-058203
P. F. Zika 15738B    24 Dec 2000
37. Azolla filiculoides Lam.
Database ID
3278842 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
372345 
Barcode
WTU-V-058203 
Other Numbers
 
Family
Salviniaceae 
Name on Specimen
Azolla filiculoides Lam. 
Accepted Name
Azolla filiculoides Lam. 
Annotation History
1. Azolla filiculoides Lam.  
Type Notes
 
Collector
P. F. Zika 
Collection #
15738B 
Other Collectors
 
Date Collected
24 Dec 2000 
Verbatim Date
 
Country
U.S.A. 
State or Province
Hawaii 
County
 
Locality
Southeast shore of Kahana Bay, near Trout Farm Road, Route 83.¶Windward northeast shoreof O'ahu. 
Elevation
 
Coordinates
21° 33.5' N, 157° 52' W 
Site Description
Uncommon aquatic, floating in taro paddy, and in mud on shoreline, partial shade, with Lemna aequinoctialis. 
Specimen Notes
 
Phenology
 
Origin
 
Cultivated?
No 
Imaged?
Yes 

Salviniaceae
38. Azolla filiculoides Lam.
U.S.A., California, Merced County:
Roadside ditch, 2.4 miles north of Volta schoolhouse on road to Gustine, Merced County.
Carpeting water in Typha; partof ditch clear because Typha were moved.
WTU 201542; Barcode: WTU-V-058205
Malcolm A. Nobs 89    12 Jul 1948
with S. Galen Smith
38. Azolla filiculoides Lam.
Database ID
3278843 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
201542 
Barcode
WTU-V-058205 
Other Numbers
 
Family
Salviniaceae 
Name on Specimen
Azolla filiculoides Lam. 
Accepted Name
Azolla filiculoides Lam. 
Annotation History
1. Azolla filiculoides Lam.  
Type Notes
 
Collector
Malcolm A. Nobs 
Collection #
89 
Other Collectors
S. Galen Smith 
Date Collected
12 Jul 1948 
Verbatim Date
 
Country
U.S.A. 
State or Province
California 
County
Merced 
Locality
Roadside ditch, 2.4 miles north of Volta schoolhouse on road to Gustine, Merced County. 
Elevation
 
Coordinates
 
Site Description
Carpeting water in Typha; partof ditch clear because Typha were moved. 
Specimen Notes
 
Phenology
 
Origin
 
Cultivated?
No 
Imaged?
Yes 

Salviniaceae
39. Azolla filiculoides Lam.
U.S.A., Arizona, Pima County:
Pima Co. ¶Fort Lowell, Rillito Valley.
Abundant in irrigation ditches.
WTU 333303; Barcode: WTU-V-058225
J. J. Thornber 4500    5 Apr 1904
39. Azolla filiculoides Lam.
Database ID
3278950 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
333303 
Barcode
WTU-V-058225 
Other Numbers
 
Family
Salviniaceae 
Name on Specimen
Azolla filiculoides Lam. 
Accepted Name
Azolla filiculoides Lam. 
Annotation History
1. Azolla filiculoides Lam.
    Remarks: Original label name: Azolla caroliniana Willd. 
Type Notes
 
Collector
J. J. Thornber 
Collection #
4500 
Other Collectors
 
Date Collected
5 Apr 1904 
Verbatim Date
 
Country
U.S.A. 
State or Province
Arizona 
County
Pima 
Locality
Pima Co. ¶Fort Lowell, Rillito Valley. 
Elevation
 
Coordinates
 
Site Description
Abundant in irrigation ditches. 
Specimen Notes
 
Phenology
 
Origin
 
Cultivated?
No 
Imaged?
Yes 

Salviniaceae
40. Azolla filiculoides Lam.
U.S.A., California, Butte County:
T18N, R3E, southeast 1/4 Section 22.¶On the west side of the Feather River, about one mile south of Palm Avenue, about 2 miles southeast of the intersection of Palm Avenue and Larkin Road, about 5 miles (air) northeast of Gridley.¶Riparian Woodland.
Large size plants, on water.¶Very common. Some plants reddish. Riparian Woodland.
WTU 413560; Barcode: WTU-V-058238
Lowell Ahart 20652    18 Nov 2015
40. Azolla filiculoides Lam.
Database ID
3278962 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
413560 
Barcode
WTU-V-058238 
Other Numbers
 
Family
Salviniaceae 
Name on Specimen
Azolla filiculoides Lam. 
Accepted Name
Azolla filiculoides Lam. 
Annotation History
1. Azolla filiculoides Lam.  
Type Notes
 
Collector
Lowell Ahart 
Collection #
20652 
Other Collectors
 
Date Collected
18 Nov 2015 
Verbatim Date
 
Country
U.S.A. 
State or Province
California 
County
Butte 
Locality
T18N, R3E, southeast 1/4 Section 22.¶On the west side of the Feather River, about one mile south of Palm Avenue, about 2 miles southeast of the intersection of Palm Avenue and Larkin Road, about 5 miles (air) northeast of Gridley.¶Riparian Woodland. 
Elevation
 
Coordinates
 
Site Description
Large size plants, on water.¶Very common. Some plants reddish. Riparian Woodland. 
Specimen Notes
 
Phenology
 
Origin
 
Cultivated?
No 
Imaged?
Yes 

Salviniaceae
41. Azolla filiculoides Lam.
U.S.A., California, Butte County:
T18N, R3E, southwest 1/4 Section 10. ¶On the west side of the Feather River, about half way of and east of One Mile Pond, about 6 miles (air) east of Biggs. ¶Riparian Woodland.
Elev. 88 ft. 39° 25' 34.1" 121° 37' 29.4". Coordinate Source: Specimen Label.
Normal sized plants, on shallow water, between large cobbles. Common.
WTU 413617; Barcode: WTU-V-058240
Lowell Ahart 20570    20 Oct 2015
41. Azolla filiculoides Lam.
Database ID
3278966 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
413617 
Barcode
WTU-V-058240 
Other Numbers
 
Family
Salviniaceae 
Name on Specimen
Azolla filiculoides Lam. 
Accepted Name
Azolla filiculoides Lam. 
Annotation History
1. Azolla filiculoides Lam.  
Type Notes
 
Collector
Lowell Ahart 
Collection #
20570 
Other Collectors
 
Date Collected
20 Oct 2015 
Verbatim Date
 
Country
U.S.A. 
State or Province
California 
County
Butte 
Locality
T18N, R3E, southwest 1/4 Section 10. ¶On the west side of the Feather River, about half way of and east of One Mile Pond, about 6 miles (air) east of Biggs. ¶Riparian Woodland. 
Elevation
88 ft. 
Coordinates
39° 25' 34.1" 121° 37' 29.4" 
Site Description
Normal sized plants, on shallow water, between large cobbles. 
Specimen Notes
Common. 
Phenology
 
Origin
 
Cultivated?
No 
Imaged?
Yes 

Salviniaceae
42. Azolla filiculoides Lam.
U.S.A., California, Butte County:
T17N, R1E, southeast 1/4 Section 3.¶About 50 yards west of the parking area, west end of West Liberty Road, about one mile (air) south of Colusa Highway, about 7 miles (air) southwest of Gridley.
Elev. 65 ft. 39° 20' 55" N, 121° 50' 16.5" W. Coordinate Source: Specimen Label.
Normal size plants, on damp bare dark clay soil, bottom of a drying deep pond.¶Freshwater Marsh. Very common.
WTU 413601; Barcode: WTU-V-058241
Lowell Ahart 19338    9 Apr 2014
42. Azolla filiculoides Lam.
Database ID
3278968 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
413601 
Barcode
WTU-V-058241 
Other Numbers
 
Family
Salviniaceae 
Name on Specimen
Azolla filiculoides Lam. 
Accepted Name
Azolla filiculoides Lam. 
Annotation History
1. Azolla filiculoides Lam.  
Type Notes
 
Collector
Lowell Ahart 
Collection #
19338 
Other Collectors
 
Date Collected
9 Apr 2014 
Verbatim Date
 
Country
U.S.A. 
State or Province
California 
County
Butte 
Locality
T17N, R1E, southeast 1/4 Section 3.¶About 50 yards west of the parking area, west end of West Liberty Road, about one mile (air) south of Colusa Highway, about 7 miles (air) southwest of Gridley. 
Elevation
65 ft. 
Coordinates
39° 20' 55" N, 121° 50' 16.5" W 
Site Description
Normal size plants, on damp bare dark clay soil, bottom of a drying deep pond.¶Freshwater Marsh. 
Specimen Notes
Very common. 
Phenology
 
Origin
 
Cultivated?
No 
Imaged?
Yes 

Salviniaceae
43. Azolla filiculoides Lam.
U.S.A., Massachusetts
Clark Hall U. M. Amherst Mass.
In fish tank. Cultivated.
WTU 152304; Barcode: WTU-V-058221
R. E. Torrey s.n.    1 Jul 1954
43. Azolla filiculoides Lam.
Database ID
3279136 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
152304 
Barcode
WTU-V-058221 
Other Numbers
 
Family
Salviniaceae 
Name on Specimen
Azolla filiculoides Lam. 
Accepted Name
Azolla filiculoides Lam. 
Annotation History
 
Type Notes
 
Collector
R. E. Torrey 
Collection #
s.n. 
Other Collectors
 
Date Collected
1 Jul 1954 
Verbatim Date
 
Country
U.S.A. 
State or Province
Massachusetts 
County
 
Locality
Clark Hall U. M. Amherst Mass. 
Elevation
 
Coordinates
 
Site Description
In fish tank. 
Specimen Notes
 
Phenology
 
Origin
 
Cultivated?
Yes 
Imaged?
Yes 

Salviniaceae
44. Azolla filiculoides Lam.
U.S.A., Washington, Klickitat County:
Downriver from Crow Butte.
45.83825° N, 119.89238° W. Datum: WGS 84. Coordinate Source: GPS.
In backwater along shore of Columbia River in 1.5m deep water, with Bidens sp., Lemna, Ceratophyllum, and Spirodela polyrhiza. Phenology: Vegetative. Origin: Native.
WTU
Peter Dunwiddie PWD-18-347    10 Jul 2018
with Peter Zika
44. Azolla filiculoides Lam.
Database ID
3279334 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
 
Barcode
 
Other Numbers
 
Family
Salviniaceae 
Name on Specimen
Azolla filiculoides Lam. 
Accepted Name
Azolla filiculoides Lam. 
Annotation History
1. Azolla filiculoides Lam.
    Annotated by Peter F. Zika, 2019. Sources: Flora PNW, 2nd.  
Type Notes
 
Collector
Peter Dunwiddie 
Collection #
PWD-18-347 
Other Collectors
Peter Zika 
Date Collected
10 Jul 2018 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Klickitat 
Locality
Downriver from Crow Butte. 
Elevation
 
Coordinates
45.83825° N, 119.89238° W 
Site Description
In backwater along shore of Columbia River in 1.5m deep water, with Bidens sp., Lemna, Ceratophyllum, and Spirodela polyrhiza. 
Specimen Notes
 
Phenology
Vegetative 
Origin
Native 
Cultivated?
No 
Imaged?
No 

Salviniaceae
45. Azolla filiculoides Lam.
U.S.A., Washington, Klickitat County:
Ca. 3km west of Crow Butte.
45.83825° N, 119.89238° W. Datum: WGS 84. Georeferenced by Crystal Shin. Coordinate Source: GPS.
Shallow backwater on the north shore of Columbia River. With Spirodella polyrhiza, Butomus umbellata, Sagittaria, Bidens sp.
WTU
Peter F. Zika PWD-18-417    11 Aug 2018
with Peter Dunwiddie
45. Azolla filiculoides Lam.
Database ID
3279562 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
 
Barcode
 
Other Numbers
 
Family
Salviniaceae 
Name on Specimen
Azolla filiculoides Lam. 
Accepted Name
Azolla filiculoides Lam. 
Annotation History
1. Azolla filiculoides Lam.
    Annotated by Peter F. Zika, 2019. Sources: Flora PNW, 2nd.  
Type Notes
 
Collector
Peter F. Zika 
Collection #
PWD-18-417 
Other Collectors
Peter Dunwiddie 
Date Collected
11 Aug 2018 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Klickitat 
Locality
Ca. 3km west of Crow Butte. 
Elevation
 
Coordinates
45.83825° N, 119.89238° W 
Site Description
Shallow backwater on the north shore of Columbia River. 
Specimen Notes
With Spirodella polyrhiza, Butomus umbellata, Sagittaria, Bidens sp. 
Phenology
 
Origin
 
Cultivated?
No 
Imaged?
No 

Salviniaceae
46. Azolla filiculoides Lam.
U.S.A., Oregon, Gilliam County:
2.6 miles up Columbia River from Arlington.
45.75188° N, 120.16967° W. Datum: WGS 84. Georeferenced by Crystal Shin. Coordinate Source: GPS.
Small patches floating in backwater with extensive floating driftwood, Butomus umbellatus, Hydrocotyle ranunculoides.
WTU
Peter F. Zika PWD-18-443    12 Aug 2018
with Peter Dunwiddie
46. Azolla filiculoides Lam.
Database ID
3279588 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
 
Barcode
 
Other Numbers
 
Family
Salviniaceae 
Name on Specimen
Azolla filiculoides Lam. 
Accepted Name
Azolla filiculoides Lam. 
Annotation History
1. Azolla filiculoides Lam.
    Annotated by Peter F. Zika, 2019. Sources: Flora PNW, 2nd.  
Type Notes
 
Collector
Peter F. Zika 
Collection #
PWD-18-443 
Other Collectors
Peter Dunwiddie 
Date Collected
12 Aug 2018 
Verbatim Date
 
Country
U.S.A. 
State or Province
Oregon 
County
Gilliam 
Locality
2.6 miles up Columbia River from Arlington. 
Elevation
 
Coordinates
45.75188° N, 120.16967° W 
Site Description
Small patches floating in backwater with extensive floating driftwood, Butomus umbellatus, Hydrocotyle ranunculoides. 
Specimen Notes
 
Phenology
 
Origin
 
Cultivated?
No 
Imaged?
No 

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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.