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Field Descriptions
142 matching records found.
Label Query: Genus = "Polygonum", Species = "aviculare"
Polygonaceae
1. Polygonum aviculare L.
U.S.A., Washington, Grays Harbor County:
Montesano.
46.98139°, -123.60139°. Datum: WGS 84. Coordinate uncertainty: 10000 meters. Georeferenced by WTU Staff. Coordinate Source: GeoLocate.
River bank. Phenology: Fertile. Origin: Introduced.
WTU 43988
J. M. Grant s.n.     Sep 1915
1. Polygonum aviculare L.
Database ID
5487 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
43988 
Barcode
 
Other Numbers
 
Family
Polygonaceae 
Name on Specimen
Polygonum aviculare L. 
Accepted Name
Polygonum aviculare L. 
Annotation History
2. Polygonum aviculare L.
    Annotated by J. O. Coolidge, 13 1964.  
Type Notes
 
Collector
J. M. Grant 
Collection #
s.n. 
Other Collectors
 
Date Collected
Sep 1915 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Grays Harbor 
Locality
Montesano. 
Elevation
 
Coordinates
46.98139°, -123.60139° 
Site Description
River bank. 
Specimen Notes
 
Phenology
Fertile 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Polygonaceae
2. Polygonum aviculare L.
U.S.A., Washington, Grant County:
Lakes below Dry Falls Dam, Coulee City, below dam and Highway 2.
Elev. 1510-1550 ft. 47° 37' N, 119° 19' W; T25N R28E S33.
Pond and sagebrush. Next to dirt road, below dam and Highway 2. Lax stems. Phenology: Fertile. Origin: Introduced.
WTU 344954
Sarah Gage G&R 486    11 Jul 1992
with Sharon Rodman
2. Polygonum aviculare L.
Database ID
5488 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
344954 
Barcode
 
Other Numbers
 
Family
Polygonaceae 
Name on Specimen
Polygonum aviculare L. 
Accepted Name
Polygonum aviculare L. 
Annotation History
1. Polygonum aviculare L.  
Type Notes
 
Collector
Sarah Gage 
Collection #
G&R 486 
Other Collectors
Sharon Rodman 
Date Collected
11 Jul 1992 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Grant 
Locality
Lakes below Dry Falls Dam, Coulee City, below dam and Highway 2. 
Elevation
1510-1550 ft. 
Coordinates
47° 37' N, 119° 19' W; T25N R28E S33 
Site Description
Pond and sagebrush. Next to dirt road, below dam and Highway 2. 
Specimen Notes
Lax stems. 
Phenology
Fertile 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Polygonaceae
3. Polygonum aviculare L. ssp. neglectum (Besser) Arcangeli
U.S.A., Washington, Island County:
Langley, Whidbey Island.
48.04028°, -122.405°. Datum: WGS 84. Coordinate uncertainty: 10000 meters. Georeferenced by WTU Staff. Coordinate Source: GeoLocate.
Fields. Common. Phenology: Fertile. Origin: Introduced.
WTU 6566
J. M. Grant 2063     Jul 1918
3. Polygonum aviculare L. ssp. neglectum (Besser) Arcangeli
Database ID
5489 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
6566 
Barcode
 
Other Numbers
 
Family
Polygonaceae 
Name on Specimen
Polygonum aviculare L. ssp. neglectum (Besser) Arcangeli 
Accepted Name
Polygonum aviculare L. ssp. neglectum (Besser) Arcang. 
Annotation History
2. Polygonum aviculare L.
    Annotated by J. O. Coolidge, 13 1964.
3. Polygonum aviculare L. ssp. neglectum (Besser) Arcangeli.
    Annotated by David Giblin, 27 2007. Sources: FNA.  
Type Notes
 
Collector
J. M. Grant 
Collection #
2063 
Other Collectors
 
Date Collected
Jul 1918 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Island 
Locality
Langley, Whidbey Island. 
Elevation
 
Coordinates
48.04028°, -122.405° 
Site Description
 
Specimen Notes
Fields. Common. 
Phenology
Fertile 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Polygonaceae
4. Polygonum aviculare L.
U.S.A., Washington, King County:
Gravel pit, SW Seattle.
47.60639°, -122.33083°. Datum: WGS 84. Coordinate uncertainty: 10000 meters. Georeferenced by WTU Staff. Coordinate Source: GeoLocate.
Eurasion annual weed; rare in seattle; plants so called are usually P. arenastrum Boreau. Phenology: Flowers. Origin: Introduced.
WTU 346746
A. L. Jacobson s.n.    16 Jun 1998
4. Polygonum aviculare L.
Database ID
5490 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
346746 
Barcode
 
Other Numbers
 
Family
Polygonaceae 
Name on Specimen
Polygonum aviculare L. 
Accepted Name
Polygonum aviculare L. 
Annotation History
1. Polygonum aviculare L.  
Type Notes
 
Collector
A. L. Jacobson 
Collection #
s.n. 
Other Collectors
 
Date Collected
16 Jun 1998 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
King 
Locality
Gravel pit, SW Seattle. 
Elevation
 
Coordinates
47.60639°, -122.33083° 
Site Description
 
Specimen Notes
Eurasion annual weed; rare in seattle; plants so called are usually P. arenastrum Boreau. 
Phenology
Flowers 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Polygonaceae
5. Polygonum aviculare L.
U.S.A., Washington, Kittitas County:
Easton.
47.23722°, -121.17778°. Datum: WGS 84. Coordinate uncertainty: 10000 meters. Georeferenced by WTU Staff. Coordinate Source: GeoLocate.
Phenology: Fertile. Origin: Introduced.
WTU 315841
T. C. Frye s.n.    6 Aug 1908
5. Polygonum aviculare L.
Database ID
5491 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
315841 
Barcode
 
Other Numbers
 
Family
Polygonaceae 
Name on Specimen
Polygonum aviculare L. 
Accepted Name
Polygonum aviculare L. 
Annotation History
2. Polygonum aviculare L.
    Annotated by Mildred Arnot, 7 1989.  
Type Notes
 
Collector
T. C. Frye 
Collection #
s.n. 
Other Collectors
 
Date Collected
6 Aug 1908 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Kittitas 
Locality
Easton. 
Elevation
 
Coordinates
47.23722°, -121.17778° 
Site Description
 
Specimen Notes
 
Phenology
Fertile 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Polygonaceae
6. Polygonum aviculare L.
U.S.A., Washington, Klickitat County:
Rock Creek.
T4N R18E S3. Datum: NAD 27. Coordinate uncertainty: 805 meters. Georeferenced by Ben Legler. Coordinate Source: TRS2LL.
Along gravel road. Phenology: Flowers. Origin: Introduced.
WTU 335013
Eliza Habegger RC 253    18 Jul 1997
6. Polygonum aviculare L.
Database ID
5492 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
335013 
Barcode
 
Other Numbers
 
Family
Polygonaceae 
Name on Specimen
Polygonum aviculare L. 
Accepted Name
Polygonum aviculare L. 
Annotation History
1. Polygonum aviculare L.  
Type Notes
 
Collector
Eliza Habegger 
Collection #
RC 253 
Other Collectors
 
Date Collected
18 Jul 1997 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Klickitat 
Locality
Rock Creek. 
Elevation
 
Coordinates
T4N R18E S3 
Site Description
Along gravel road. 
Specimen Notes
 
Phenology
Flowers 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Polygonaceae
7. Polygonum aviculare L.
U.S.A., Washington, Kitsap County:
At Silverdale.
47.64472°, -122.69361°. Datum: WGS 84. Coordinate uncertainty: 5000 meters. Georeferenced by WTU Staff. Coordinate Source: GeoLocate.
Semi-swampy area above high tide level. Plants erect to prostrate (where in open); perianth white-margined. Phenology: Flowers. Origin: Introduced.
WTU 213478
C. L. Hitchcock 22866    11 Jul 1963
with C. V. Muhlick
7. Polygonum aviculare L.
Database ID
5493 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
213478 
Barcode
 
Other Numbers
 
Family
Polygonaceae 
Name on Specimen
Polygonum aviculare L. 
Accepted Name
Polygonum aviculare L. 
Annotation History
1. Polygonum aviculare L.  
Type Notes
 
Collector
C. L. Hitchcock 
Collection #
22866 
Other Collectors
C. V. Muhlick 
Date Collected
11 Jul 1963 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Kitsap 
Locality
At Silverdale. 
Elevation
 
Coordinates
47.64472°, -122.69361° 
Site Description
Semi-swampy area above high tide level. 
Specimen Notes
Plants erect to prostrate (where in open); perianth white-margined. 
Phenology
Flowers 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Polygonaceae
8. Polygonum aviculare L.
U.S.A., Washington, Okanogan County:
Iron Gate Trailhead.
Elev. 5900 ft. T39N R23E S2 SWNW. Datum: WGS 84. Coordinate uncertainty: 800 meters. Georeferenced by WTU Staff. Coordinate Source: GeoLocate.
Sandy parking lot and stock ramps. Phenology: Flowers. Origin: Introduced.
WTU 332950
George Wooten GW01716    16 Aug 1992
8. Polygonum aviculare L.
Database ID
5494 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
332950 
Barcode
 
Other Numbers
 
Family
Polygonaceae 
Name on Specimen
Polygonum aviculare L. 
Accepted Name
Polygonum aviculare L. 
Annotation History
1. Polygonum aviculare L.  
Type Notes
 
Collector
George Wooten 
Collection #
GW01716 
Other Collectors
 
Date Collected
16 Aug 1992 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Okanogan 
Locality
Iron Gate Trailhead. 
Elevation
5900 ft. 
Coordinates
T39N R23E S2 SWNW 
Site Description
Sandy parking lot and stock ramps. 
Specimen Notes
 
Phenology
Flowers 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Polygonaceae
9. Polygonum aviculare L.
U.S.A., Washington, Pierce County:
Longmire, Mount Rainer.
46.75°, -121.81139°. Datum: WGS 84. Coordinate uncertainty: 10000 meters. Georeferenced by WTU Staff. Coordinate Source: GeoLocate.
Gravelly soil. Phenology: Fertile. Origin: Introduced.
WTU 26052
F. A. Warren 1618    15 Jul 1932
9. Polygonum aviculare L.
Database ID
5495 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
26052 
Barcode
 
Other Numbers
 
Family
Polygonaceae 
Name on Specimen
Polygonum aviculare L. 
Accepted Name
Polygonum aviculare L. 
Annotation History
1. Polygonum aviculare L.  
Type Notes
 
Collector
F. A. Warren 
Collection #
1618 
Other Collectors
 
Date Collected
15 Jul 1932 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Pierce 
Locality
Longmire, Mount Rainer. 
Elevation
 
Coordinates
46.75°, -121.81139° 
Site Description
 
Specimen Notes
Gravelly soil. 
Phenology
Fertile 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Polygonaceae
10. Polygonum aviculare L.
U.S.A., Washington, San Juan County:
Yellow Island, south side.
48.591111°, -123.033056°. Datum: WGS 84. Coordinate uncertainty: 250 meters. Georeferenced by WTU Staff. Coordinate Source: Georeferenced.
South facing outcrop; dry rocky ground above shore. Phenology: Fertile. Origin: Introduced.
WTU 333024
Eliza Habegger s.n.    5 Jul 1996
10. Polygonum aviculare L.
Database ID
5496 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
333024 
Barcode
 
Other Numbers
 
Family
Polygonaceae 
Name on Specimen
Polygonum aviculare L. 
Accepted Name
Polygonum aviculare L. 
Annotation History
2. Polygonum aviculare L.
    Annotated by P. Dunwiddie.  
Type Notes
 
Collector
Eliza Habegger 
Collection #
s.n. 
Other Collectors
 
Date Collected
5 Jul 1996 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
San Juan 
Locality
Yellow Island, south side. 
Elevation
 
Coordinates
48.591111°, -123.033056° 
Site Description
 
Specimen Notes
South facing outcrop; dry rocky ground above shore. 
Phenology
Fertile 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Polygonaceae
11. Polygonum aviculare L.
U.S.A., Washington, Spokane County:
Mt. Carlton (Carleton or Mount Spokane).
47.92117°, -117.1142°. Datum: WGS 84. Coordinate uncertainty: 3000 meters. Georeferenced by WTU Staff. Coordinate Source: GeoLocate.
Phenology: Fertile. Origin: Introduced.
WTU 254460
F. O. Kreager 314    22 Jul 1902
11. Polygonum aviculare L.
Database ID
5497 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
254460 
Barcode
 
Other Numbers
 
Family
Polygonaceae 
Name on Specimen
Polygonum aviculare L. 
Accepted Name
Polygonum aviculare L. 
Annotation History
1. Polygonum aviculare L.  
Type Notes
 
Collector
F. O. Kreager 
Collection #
314 
Other Collectors
 
Date Collected
22 Jul 1902 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Spokane 
Locality
Mt. Carlton (Carleton or Mount Spokane). 
Elevation
 
Coordinates
47.92117°, -117.1142° 
Site Description
 
Specimen Notes
 
Phenology
Fertile 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Polygonaceae
12. Polygonum aviculare L.
U.S.A., Washington, Snohomish County:
Near Index.
T27N R10E S17. Datum: NAD 27. Coordinate uncertainty: 805 meters. Georeferenced by Ben Legler. Coordinate Source: TRS2LL.
In gravel along edge of railroad tracks. Phenology: Fertile. Origin: Introduced.
WTU 330531
Mildred Arnot 712    15 Aug 1994
12. Polygonum aviculare L.
Database ID
5498 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
330531 
Barcode
 
Other Numbers
 
Family
Polygonaceae 
Name on Specimen
Polygonum aviculare L. 
Accepted Name
Polygonum aviculare L. 
Annotation History
1. Polygonum aviculare L.  
Type Notes
 
Collector
Mildred Arnot 
Collection #
712 
Other Collectors
 
Date Collected
15 Aug 1994 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Snohomish 
Locality
Near Index. 
Elevation
 
Coordinates
T27N R10E S17 
Site Description
 
Specimen Notes
In gravel along edge of railroad tracks. 
Phenology
Fertile 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Polygonaceae
13. Polygonum aviculare L.
U.S.A., Washington, Stevens County:
Big Sheep Creek Road.
Elev. 3900 ft. T40N R39E S39.
Edge of road at dried-up swamp. Phenology: Fertile. Origin: Introduced.
WTU 195503
Monita Engvall 201    13 Aug 1958
13. Polygonum aviculare L.
Database ID
5499 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
195503 
Barcode
 
Other Numbers
 
Family
Polygonaceae 
Name on Specimen
Polygonum aviculare L. 
Accepted Name
Polygonum aviculare L. 
Annotation History
2. Polygonum aviculare L.
    Annotated by J. O. Coolidge, 15 1964.  
Type Notes
 
Collector
Monita Engvall 
Collection #
201 
Other Collectors
 
Date Collected
13 Aug 1958 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Stevens 
Locality
Big Sheep Creek Road. 
Elevation
3900 ft. 
Coordinates
T40N R39E S39 
Site Description
 
Specimen Notes
Edge of road at dried-up swamp. 
Phenology
Fertile 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Polygonaceae
14. Polygonum aviculare L.
U.S.A., Washington, Whitman County:
45 miles west of Lewiston, along the north bank of the Snake River.
T11N R45E S12. Datum: NAD 27. Coordinate uncertainty: 805 meters. Georeferenced by Ben Legler. Coordinate Source: TRS2LL.
On waste land. Young plants erect, then decumbent, bluish-green; flowers opening white at anthesis, the 5 segments subequal; fertile stamens 8, turning to reddish tinged shortly after anthesis; achenes usually exceeding the perianth. Phenology: Fertile. Origin: Introduced.
WTU 197482
C. L. Hitchcock 21842    11 Jun 1959
with C. V. Muhlick
14. Polygonum aviculare L.
Database ID
5500 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
197482 
Barcode
 
Other Numbers
 
Family
Polygonaceae 
Name on Specimen
Polygonum aviculare L. 
Accepted Name
Polygonum aviculare L. 
Annotation History
2. Polygonum aviculare L.
    Annotated by J. O. Coolidge, 15 1964.  
Type Notes
 
Collector
C. L. Hitchcock 
Collection #
21842 
Other Collectors
C. V. Muhlick 
Date Collected
11 Jun 1959 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Whitman 
Locality
45 miles west of Lewiston, along the north bank of the Snake River. 
Elevation
 
Coordinates
T11N R45E S12 
Site Description
On waste land. 
Specimen Notes
Young plants erect, then decumbent, bluish-green; flowers opening white at anthesis, the 5 segments subequal; fertile stamens 8, turning to reddish tinged shortly after anthesis; achenes usually exceeding the perianth. 
Phenology
Fertile 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Polygonaceae
15. Polygonum aviculare L. var. littorale (Link) Mert.
     (= Polygonum aviculare L. var. littorale (Link) Mert.)
U.S.A., Washington, Jefferson County:
Port Hadlock.
48.03194°, -122.75694°. Datum: WGS 84. Coordinate uncertainty: 10000 meters. Georeferenced by WTU Staff. Coordinate Source: GeoLocate.
Beach. Phenology: Fertile. Origin: Introduced.
WTU 21536
George Neville Jones 3152     Jun 1931
15. Polygonum aviculare L. var. littorale (Link) Mert.
Database ID
5501 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
21536 
Barcode
 
Other Numbers
 
Family
Polygonaceae 
Name on Specimen
Polygonum aviculare L. var. littorale (Link) Mert. 
Accepted Name
Polygonum aviculare L. var. littorale (Link) Mert. 
Annotation History
3. Polygonum aviculare L. var. littorale (Link) Mert.
    Annotated by J. O. Coolidge, 14 1964.  
Type Notes
 
Collector
George Neville Jones 
Collection #
3152 
Other Collectors
 
Date Collected
Jun 1931 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Jefferson 
Locality
Port Hadlock. 
Elevation
 
Coordinates
48.03194°, -122.75694° 
Site Description
Beach. 
Specimen Notes
 
Phenology
Fertile 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Polygonaceae
16. Polygonum aviculare L. var. littorale (Link) Mert.
     (= Polygonum aviculare L. var. littorale (Link) Mert.)
U.S.A., Washington, King County:
University of Washington campus.
47.66667°, -122.30861°. Datum: WGS 84. Coordinate uncertainty: 10000 meters. Georeferenced by WTU Staff. Coordinate Source: GeoLocate.
Moist places. Phenology: Fertile. Origin: Introduced.
WTU 6610
H. Haruelig s.n.    16 Oct 1908
16. Polygonum aviculare L. var. littorale (Link) Mert.
Database ID
5502 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
6610 
Barcode
 
Other Numbers
 
Family
Polygonaceae 
Name on Specimen
Polygonum aviculare L. var. littorale (Link) Mert. 
Accepted Name
Polygonum aviculare L. var. littorale (Link) Mert. 
Annotation History
4. Polygonum aviculare L. var. littorale (Link) Mert.
    Annotated by WTU.  
Type Notes
 
Collector
H. Haruelig 
Collection #
s.n. 
Other Collectors
 
Date Collected
16 Oct 1908 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
King 
Locality
University of Washington campus. 
Elevation
 
Coordinates
47.66667°, -122.30861° 
Site Description
Moist places. 
Specimen Notes
 
Phenology
Fertile 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Polygonaceae
17. Polygonum aviculare L. var. littorale (Link) Mert.
     (= Polygonum aviculare L. var. littorale (Link) Mert.)
U.S.A., Washington, Mason County:
Beach near Hoodsport.
47.40611°, -123.13806°. Datum: WGS 84. Coordinate uncertainty: 5000 meters. Georeferenced by WTU Staff. Coordinate Source: GeoLocate.
Phenology: Fertile. Origin: Introduced.
WTU 31848
George Neville Jones 8094    2 Aug 1935
17. Polygonum aviculare L. var. littorale (Link) Mert.
Database ID
5503 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
31848 
Barcode
 
Other Numbers
 
Family
Polygonaceae 
Name on Specimen
Polygonum aviculare L. var. littorale (Link) Mert. 
Accepted Name
Polygonum aviculare L. var. littorale (Link) Mert. 
Annotation History
2. Polygonum aviculare L. var. littorale (Link) Mert.
    Annotated by J. O. Coolidge, 14 1964.  
Type Notes
 
Collector
George Neville Jones 
Collection #
8094 
Other Collectors
 
Date Collected
2 Aug 1935 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Mason 
Locality
Beach near Hoodsport. 
Elevation
 
Coordinates
47.40611°, -123.13806° 
Site Description
 
Specimen Notes
 
Phenology
Fertile 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Polygonaceae
18. Polygonum aviculare L.
U.S.A., Washington, Pierce County:
Longmire, Mount Rainer.
46.75°, -121.81139°. Datum: WGS 84. Coordinate uncertainty: 10000 meters. Georeferenced by WTU Staff. Coordinate Source: GeoLocate.
Gravelly soil. Phenology: Flowers. Origin: Introduced.
WTU 26052
F. A. Warren 1618    15 Jul 1932
18. Polygonum aviculare L.
Database ID
62110 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
26052 
Barcode
 
Other Numbers
 
Family
Polygonaceae 
Name on Specimen
Polygonum aviculare L. 
Accepted Name
Polygonum aviculare L. 
Annotation History
1. Polygonum aviculare L.  
Type Notes
 
Collector
F. A. Warren 
Collection #
1618 
Other Collectors
 
Date Collected
15 Jul 1932 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Pierce 
Locality
Longmire, Mount Rainer. 
Elevation
 
Coordinates
46.75°, -121.81139° 
Site Description
Gravelly soil. 
Specimen Notes
 
Phenology
Flowers 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Polygonaceae
19. Polygonum aviculare L.
U.S.A., Washington, King County:
Seatte, on campus of state univiersity along paths and in tennis courts.
47.6525°, -122.30699°. Datum: WGS 84. Coordinate uncertainty: 500 meters. Georeferenced by WTU Staff. Coordinate Source: GeoLocate.
Phenology: Flowers & Fruits. Origin: Introduced.
WTU 6596
T. C. Frye s.n.    1 Oct 1904
19. Polygonum aviculare L.
Database ID
62111 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
6596 
Barcode
 
Other Numbers
 
Family
Polygonaceae 
Name on Specimen
Polygonum aviculare L. 
Accepted Name
Polygonum aviculare L. 
Annotation History
1. Polygonum aviculare L.  
Type Notes
 
Collector
T. C. Frye 
Collection #
s.n. 
Other Collectors
 
Date Collected
1 Oct 1904 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
King 
Locality
Seatte, on campus of state univiersity along paths and in tennis courts. 
Elevation
 
Coordinates
47.6525°, -122.30699° 
Site Description
 
Specimen Notes
 
Phenology
Flowers & Fruits 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Polygonaceae
20. Polygonum aviculare L.
U.S.A., Washington, King County:
Seattle, University Campus.
47.60639°, -122.33083°. Datum: WGS 84. Coordinate uncertainty: 10000 meters. Georeferenced by WTU Staff. Coordinate Source: GeoLocate.
Phenology: Flowers. Origin: Introduced.
WTU 6595
T. C. Frye s.n.    15 May 1904
20. Polygonum aviculare L.
Database ID
62112 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
6595 
Barcode
 
Other Numbers
 
Family
Polygonaceae 
Name on Specimen
Polygonum aviculare L. 
Accepted Name
Polygonum aviculare L. 
Annotation History
1. Polygonum aviculare L.
    Annotated by T. C. Frye.
2. Polygonum aviculare L.
    Annotated by J. O. Coolidge, 13 1964.  
Type Notes
 
Collector
T. C. Frye 
Collection #
s.n. 
Other Collectors
 
Date Collected
15 May 1904 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
King 
Locality
Seattle, University Campus. 
Elevation
 
Coordinates
47.60639°, -122.33083° 
Site Description
 
Specimen Notes
 
Phenology
Flowers 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Polygonaceae
21. Polygonum aviculare L.
U.S.A., Washington, King County:
Seattle.
47.613617°, -122.310098°. Datum: WGS 84. Coordinate uncertainty: 15750 meters. Georeferenced by Joseph Stormer. Coordinate Source: Digital Map.
Phenology: Flowers. Origin: Introduced.
WTU 6398
C. V. Piper s.n.    30 Sep 1888
21. Polygonum aviculare L.
Database ID
62113 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
6398 
Barcode
 
Other Numbers
 
Family
Polygonaceae 
Name on Specimen
Polygonum aviculare L. 
Accepted Name
Polygonum aviculare L. 
Annotation History
1. Polygonum aviculare L.  
Type Notes
 
Collector
C. V. Piper 
Collection #
s.n. 
Other Collectors
 
Date Collected
30 Sep 1888 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
King 
Locality
Seattle. 
Elevation
 
Coordinates
47.613617°, -122.310098° 
Site Description
 
Specimen Notes
 
Phenology
Flowers 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Polygonaceae
22. Polygonum aviculare L.
U.S.A., Washington, San Juan County:
Lopez Island, Spencer Spit Marine Park.
Elev. 0 ft. T35N R1W S7. Datum: NAD 27. Coordinate uncertainty: 500 meters. Georeferenced by WTU Staff. Coordinate Source: Georeferenced.
Roadside near saltmarsh; with Agrostis exarata. Occasional, annual. Phenology: Vegetative. Origin: Introduced.
WTU 293301
Peter E. Rapp 223    31 Jul 1981
22. Polygonum aviculare L.
Database ID
62119 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
293301 
Barcode
 
Other Numbers
 
Family
Polygonaceae 
Name on Specimen
Polygonum aviculare L. 
Accepted Name
Polygonum aviculare L. 
Annotation History
1. Polygonum aviculare L.  
Type Notes
 
Collector
Peter E. Rapp 
Collection #
223 
Other Collectors
 
Date Collected
31 Jul 1981 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
San Juan 
Locality
Lopez Island, Spencer Spit Marine Park. 
Elevation
0 ft. 
Coordinates
T35N R1W S7 
Site Description
Roadside near saltmarsh; with Agrostis exarata. 
Specimen Notes
Occasional, annual. 
Phenology
Vegetative 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Polygonaceae
23. Polygonum aviculare L.
U.S.A., Oregon, Grant County:
Malheur Forest, Logan Valley Reseeding Project.
Elev. 5057 ft. T16S R34E S22. Datum: NAD 27. Coordinate uncertainty: 805 meters. Georeferenced by Ben Legler. Coordinate Source: TRS2LL.
Gravelly-rocky soil, growing with Gayophytum, knotweed, and chest, in dry open sites. Common. Phenology: Flowers. Origin: Introduced.
WTU 131433
D. P. Berghuis 35    17 Jul 1938
23. Polygonum aviculare L.
Database ID
62124 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
131433 
Barcode
 
Other Numbers
 
Family
Polygonaceae 
Name on Specimen
Polygonum aviculare L. 
Accepted Name
Polygonum aviculare L. 
Annotation History
1. Polygonum douglasii Greene.
2. Polygonum aviculare L.  
Type Notes
 
Collector
D. P. Berghuis 
Collection #
35 
Other Collectors
 
Date Collected
17 Jul 1938 
Verbatim Date
 
Country
U.S.A. 
State or Province
Oregon 
County
Grant 
Locality
Malheur Forest, Logan Valley Reseeding Project. 
Elevation
5057 ft. 
Coordinates
T16S R34E S22 
Site Description
Gravelly-rocky soil, growing with Gayophytum, knotweed, and chest, in dry open sites. 
Specimen Notes
Common. 
Phenology
Flowers 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Polygonaceae
24. Polygonum aviculare L.
U.S.A., Washington, Grant County:
Near Coulee City, Grand Coulee.
47.61139°, -119.29111°. Datum: WGS 84. Coordinate uncertainty: 5000 meters. Georeferenced by WTU Staff. Coordinate Source: GeoLocate.
Moist sagebrush plains. Phenology: Flowers. Origin: Introduced.
WTU 24140JWT
J. William Thompson 9098    21 Jun 1933
24. Polygonum aviculare L.
Database ID
62130 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
24140JWT 
Barcode
 
Other Numbers
 
Family
Polygonaceae 
Name on Specimen
Polygonum aviculare L. 
Accepted Name
Polygonum aviculare L. 
Annotation History
1. Polygonum aviculare L.
2. Polygonum aviculare L.
    Annotated by J. O. Coolidge.  
Type Notes
 
Collector
J. William Thompson 
Collection #
9098 
Other Collectors
 
Date Collected
21 Jun 1933 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Grant 
Locality
Near Coulee City, Grand Coulee. 
Elevation
 
Coordinates
47.61139°, -119.29111° 
Site Description
Moist sagebrush plains. 
Specimen Notes
 
Phenology
Flowers 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Polygonaceae
25. Polygonum aviculare L.
U.S.A., Washington, King County:
Seattle: parking lot next to Wedgewood Post Office.
47.39361°, -122.42361°. Datum: WGS 84. Coordinate uncertainty: 10000 meters. Georeferenced by WTU Staff. Coordinate Source: GeoLocate.
Plants creeping across ground; flowers greenish with pink edges. Phenology: Flowers. Origin: Introduced.
WTU 328323
T. F. Johnson 181    12 Jul 1987
25. Polygonum aviculare L.
Database ID
62132 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
328323 
Barcode
 
Other Numbers
 
Family
Polygonaceae 
Name on Specimen
Polygonum aviculare L. 
Accepted Name
Polygonum aviculare L. 
Annotation History
1. Polygonum aviculare L.  
Type Notes
 
Collector
T. F. Johnson 
Collection #
181 
Other Collectors
 
Date Collected
12 Jul 1987 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
King 
Locality
Seattle: parking lot next to Wedgewood Post Office. 
Elevation
 
Coordinates
47.39361°, -122.42361° 
Site Description
 
Specimen Notes
Plants creeping across ground; flowers greenish with pink edges. 
Phenology
Flowers 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Polygonaceae
26. Polygonum aviculare L.
U.S.A., Washington, King County:
University of Washington Campus, Seattle.
T25N R4E S16. Datum: NAD 27. Coordinate uncertainty: 805 meters. Georeferenced by Ben Legler. Coordinate Source: TRS2LL.
Phenology: Fertile. Origin: Introduced.
WTU 288796
D. R. Simpson 373    17 Sep 1967
26. Polygonum aviculare L.
Database ID
62145 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
288796 
Barcode
 
Other Numbers
 
Family
Polygonaceae 
Name on Specimen
Polygonum aviculare L. 
Accepted Name
Polygonum aviculare L. 
Annotation History
1. Polygonum aviculare L.  
Type Notes
 
Collector
D. R. Simpson 
Collection #
373 
Other Collectors
 
Date Collected
17 Sep 1967 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
King 
Locality
University of Washington Campus, Seattle. 
Elevation
 
Coordinates
T25N R4E S16 
Site Description
 
Specimen Notes
 
Phenology
Fertile 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Polygonaceae
27. Polygonum aviculare L.
U.S.A., Washington, Okanogan County:
Alongside of summit road to Nespelem, east of summit.
48.16722°, -118.97361°. Datum: WGS 84. Coordinate uncertainty: 10000 meters. Georeferenced by WTU Staff. Coordinate Source: GeoLocate.
On dry sandy hillside. Phenology: Vegetative. Origin: Introduced.
WTU 15354JWT
Chas. B. Fiker 1481    20 Jun 1934
27. Polygonum aviculare L.
Database ID
62146 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
15354JWT 
Barcode
 
Other Numbers
 
Family
Polygonaceae 
Name on Specimen
Polygonum aviculare L. 
Accepted Name
Polygonum aviculare L. 
Annotation History
1. Polygonum aviculare L.
2. Polygonum aviculare L.
    Annotated by J. O. Coolidge, 15 1964.  
Type Notes
 
Collector
Chas. B. Fiker 
Collection #
1481 
Other Collectors
 
Date Collected
20 Jun 1934 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Okanogan 
Locality
Alongside of summit road to Nespelem, east of summit. 
Elevation
 
Coordinates
48.16722°, -118.97361° 
Site Description
On dry sandy hillside. 
Specimen Notes
 
Phenology
Vegetative 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Polygonaceae
28. Polygonum aviculare L.
U.S.A., Washington, Stevens County:
Cedonia.
48.15389°, -118.16806°. Datum: WGS 84. Coordinate uncertainty: 10000 meters. Georeferenced by WTU Staff. Coordinate Source: GeoLocate.
In road paths. Achenes entirely or nearly enclosed by calyx, flowers axillary, stems striate, common. Phenology: Fertile. Origin: Introduced.
WTU 111874
Mae E. Dennis s.n.    6 Aug 1946
28. Polygonum aviculare L.
Database ID
62147 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
111874 
Barcode
 
Other Numbers
 
Family
Polygonaceae 
Name on Specimen
Polygonum aviculare L. 
Accepted Name
Polygonum aviculare L. 
Annotation History
1. Polygonum aviculare L.  
Type Notes
 
Collector
Mae E. Dennis 
Collection #
s.n. 
Other Collectors
 
Date Collected
6 Aug 1946 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Stevens 
Locality
Cedonia. 
Elevation
 
Coordinates
48.15389°, -118.16806° 
Site Description
In road paths. 
Specimen Notes
Achenes entirely or nearly enclosed by calyx, flowers axillary, stems striate, common. 
Phenology
Fertile 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Polygonaceae
29. Polygonum aviculare L.
U.S.A., Washington, Okanogan County:
Bog east of Loomis.
Elev. 1000 ft. 48.82111°, -119.63222°. Datum: WGS 84. Coordinate uncertainty: 10000 meters. Georeferenced by WTU Staff. Coordinate Source: GeoLocate.
In a bog. Phenology: Fertile. Origin: Introduced.
WTU 15395JWT
J. William Thompson 10925    4 Jul 1934
29. Polygonum aviculare L.
Database ID
62148 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
15395JWT 
Barcode
 
Other Numbers
 
Family
Polygonaceae 
Name on Specimen
Polygonum aviculare L. 
Accepted Name
Polygonum aviculare L. 
Annotation History
1. Polygonum aviculare L.
2. Polygonum aviculare L.
    Annotated by J. O. Coolidge, 15 1964.  
Type Notes
 
Collector
J. William Thompson 
Collection #
10925 
Other Collectors
 
Date Collected
4 Jul 1934 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Okanogan 
Locality
Bog east of Loomis. 
Elevation
1000 ft. 
Coordinates
48.82111°, -119.63222° 
Site Description
In a bog. 
Specimen Notes
 
Phenology
Fertile 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Polygonaceae
30. Polygonum aviculare L. ssp. neglectum (Besser) Arcangeli
U.S.A., Washington, Whitman County:
Pullman.
46.73139°, -117.17861°. Datum: WGS 84. Coordinate uncertainty: 1000 meters. Georeferenced by John Bassett. Coordinate Source: Nat. Geog. TOPO!.
Phenology: Flowers. Origin: Introduced.
WTU 66949
F. L. Pickett 346    8 Sep 1915
30. Polygonum aviculare L. ssp. neglectum (Besser) Arcangeli
Database ID
62151 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
66949 
Barcode
 
Other Numbers
 
Family
Polygonaceae 
Name on Specimen
Polygonum aviculare L. ssp. neglectum (Besser) Arcangeli 
Accepted Name
Polygonum aviculare L. ssp. neglectum (Besser) Arcang. 
Annotation History
1. Polygonum aviculare L.
2. Polygonum aviculare L. var. angustissumum.
    Annotated by J. O. Coolidge, 13 1964.
3. Polygonum aviculare L. ssp. neglectum (Besser) Arcangeli.
    Annotated by David Giblin, 27 2007. Sources: FNA. Remarks: mi 
Type Notes
 
Collector
F. L. Pickett 
Collection #
346 
Other Collectors
 
Date Collected
8 Sep 1915 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Whitman 
Locality
Pullman. 
Elevation
 
Coordinates
46.73139°, -117.17861° 
Site Description
 
Specimen Notes
 
Phenology
Flowers 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Polygonaceae
31. Polygonum aviculare L.
U.S.A., Washington, Okanogan County:
Alongside road from Loomis to Tonasket.
48.82111°, -119.63222°. Datum: WGS 84. Coordinate uncertainty: 10000 meters. Georeferenced by WTU Staff. Coordinate Source: GeoLocate.
Pond hole. Phenology: Flowers. Origin: Introduced.
WTU 15351JWT
Chas. B. Fiker 1508    3 Jul 1934
31. Polygonum aviculare L.
Database ID
62153 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
15351JWT 
Barcode
 
Other Numbers
 
Family
Polygonaceae 
Name on Specimen
Polygonum aviculare L. 
Accepted Name
Polygonum aviculare L. 
Annotation History
1. Polygonum aviculare L.
2. Polygonum aviculare L.
    Annotated by J. O. Coolidge, 15 1964.  
Type Notes
 
Collector
Chas. B. Fiker 
Collection #
1508 
Other Collectors
 
Date Collected
3 Jul 1934 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Okanogan 
Locality
Alongside road from Loomis to Tonasket. 
Elevation
 
Coordinates
48.82111°, -119.63222° 
Site Description
Pond hole. 
Specimen Notes
 
Phenology
Flowers 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Polygonaceae
32. Polygonum aviculare L.
U.S.A., Idaho, Latah County:
South slope of Tomer's Butte, 4 miles southeast of Moscow.
46.691538°, -116.939429°. Datum: WGS 84. Coordinate uncertainty: 500 meters. Georeferenced by WTU Staff. Coordinate Source: GeoLocate.
Edge of field. Phenology: Vegetative. Origin: Introduced.
WTU 295035
William H. Baker 9014    3 Jun 1952
32. Polygonum aviculare L.
Database ID
62154 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
295035 
Barcode
 
Other Numbers
 
Family
Polygonaceae 
Name on Specimen
Polygonum aviculare L. 
Accepted Name
Polygonum aviculare L. 
Annotation History
1. Polygonum aviculare L.  
Type Notes
 
Collector
William H. Baker 
Collection #
9014 
Other Collectors
 
Date Collected
3 Jun 1952 
Verbatim Date
 
Country
U.S.A. 
State or Province
Idaho 
County
Latah 
Locality
South slope of Tomer's Butte, 4 miles southeast of Moscow. 
Elevation
 
Coordinates
46.691538°, -116.939429° 
Site Description
Edge of field. 
Specimen Notes
 
Phenology
Vegetative 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Polygonaceae
33. Polygonum aviculare L. var. littorale (Link) Mert.
     (= Polygonum aviculare L. var. littorale (Link) Mert.)
U.S.A., Washington, Mason County:
Near Hoodsport.
47.40611°, -123.13806°. Datum: WGS 84. Coordinate uncertainty: 5000 meters. Georeferenced by WTU Staff. Coordinate Source: GeoLocate.
Beach. Phenology: Fertile. Origin: Introduced.
WTU 343JWT
G. N. Jones 8094    2 Aug 1935
33. Polygonum aviculare L. var. littorale (Link) Mert.
Database ID
62155 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
343JWT 
Barcode
 
Other Numbers
 
Family
Polygonaceae 
Name on Specimen
Polygonum aviculare L. var. littorale (Link) Mert. 
Accepted Name
Polygonum aviculare L. var. littorale (Link) Mert. 
Annotation History
1. Polygonum fowleri Robins.
2. Polygonum aviculare L. var. littorale (Link) Mert.
    Annotated by J. O. Coolidge, 14 1964.  
Type Notes
 
Collector
G. N. Jones 
Collection #
8094 
Other Collectors
 
Date Collected
2 Aug 1935 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Mason 
Locality
Near Hoodsport. 
Elevation
 
Coordinates
47.40611°, -123.13806° 
Site Description
Beach. 
Specimen Notes
 
Phenology
Fertile 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Polygonaceae
34. Polygonum aviculare L.
U.S.A., Idaho, Payette County:
Payette River, along highway #52, 15 miles southeast of Payette.
43.999886°, -116.8004°. Datum: WGS 84. Coordinate uncertainty: 1000 meters. Georeferenced by WTU Staff. Coordinate Source: GeoLocate.
Sandy bank of river. Roadside weed, prostrate, or the stems assurgent, glaucous; flowers very small; perianth 5 parted, fairly widely opened, but not flared, the segments about equal; greenish with white margins, aging to purplish-green on the midvein and becoming somewhat cucullate; the fertile stames 8; achene tending to exceed perianth. Phenology: Vegetative. Origin: Introduced.
WTU 195018
C. L. Hitchcock 21768    8 Jun 1959
with C. V. Muhlick
34. Polygonum aviculare L.
Database ID
62156 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
195018 
Barcode
 
Other Numbers
 
Family
Polygonaceae 
Name on Specimen
Polygonum aviculare L. 
Accepted Name
Polygonum aviculare L. 
Annotation History
1. Polygonum aviculare L.
2. Polygonum aviculare L.
    Annotated by J. O. Coolidge.  
Type Notes
 
Collector
C. L. Hitchcock 
Collection #
21768 
Other Collectors
C. V. Muhlick 
Date Collected
8 Jun 1959 
Verbatim Date
 
Country
U.S.A. 
State or Province
Idaho 
County
Payette 
Locality
Payette River, along highway #52, 15 miles southeast of Payette. 
Elevation
 
Coordinates
43.999886°, -116.8004° 
Site Description
Sandy bank of river. 
Specimen Notes
Roadside weed, prostrate, or the stems assurgent, glaucous; flowers very small; perianth 5 parted, fairly widely opened, but not flared, the segments about equal; greenish with white margins, aging to purplish-green on the midvein and becoming somewhat cucullate; the fertile stames 8; achene tending to exceed perianth. 
Phenology
Vegetative 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Polygonaceae
35. Polygonum aviculare L.
U.S.A., Montana, Carbon County:
From about 1 to 15 miles north of the Wyoming line north of Lovell, Wyoming.
45.132067°, -108.394486°. Datum: WGS 84. Coordinate uncertainty: 40234 meters. Georeferenced by Joseph Stormer. Coordinate Source: Digital Map.
Along roads, dry clay slopes. Abundant. Phenology: Flowers. Origin: Introduced.
WTU 295785
W. E. Booth 54548    18 Jul 1954
35. Polygonum aviculare L.
Database ID
62158 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
295785 
Barcode
 
Other Numbers
 
Family
Polygonaceae 
Name on Specimen
Polygonum aviculare L. 
Accepted Name
Polygonum aviculare L. 
Annotation History
1. Polygonum aviculare L.  
Type Notes
 
Collector
W. E. Booth 
Collection #
54548 
Other Collectors
 
Date Collected
18 Jul 1954 
Verbatim Date
 
Country
U.S.A. 
State or Province
Montana 
County
Carbon 
Locality
From about 1 to 15 miles north of the Wyoming line north of Lovell, Wyoming. 
Elevation
 
Coordinates
45.132067°, -108.394486° 
Site Description
Along roads, dry clay slopes. 
Specimen Notes
Abundant. 
Phenology
Flowers 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Polygonaceae
36. Polygonum aviculare L. var. littorale (Link) Mert.
     (= Polygonum aviculare L. var. littorale (Link) Mert.)
U.S.A., Iowa
Humboldt.
Shore. Knot weed. Phenology: Fertile.
WTU 6317
M. P. Somer s.n.    14 Aug 1904
36. Polygonum aviculare L. var. littorale (Link) Mert.
Database ID
62159 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
6317 
Barcode
 
Other Numbers
 
Family
Polygonaceae 
Name on Specimen
Polygonum aviculare L. var. littorale (Link) Mert. 
Accepted Name
Polygonum aviculare L. var. littorale (Link) Mert. 
Annotation History
1. Polygonum littorale Link.
2. Polygonum aviculare L. var. littorale (Link) Mert.  
Type Notes
 
Collector
M. P. Somer 
Collection #
s.n. 
Other Collectors
 
Date Collected
14 Aug 1904 
Verbatim Date
 
Country
U.S.A. 
State or Province
Iowa 
County
 
Locality
Humboldt. 
Elevation
 
Coordinates
 
Site Description
Shore. 
Specimen Notes
Knot weed. 
Phenology
Fertile 
Origin
 
Cultivated?
No 
Imaged?
No 

Polygonaceae
37. Polygonum aviculare L. ssp. buxiforme (Small) Costea & Tardif
U.S.A., Idaho, Custer County:
Fifteen miles west of Stanley, on road to Ketchum.
44.21139°, -114.945°. Datum: WGS 84. Coordinate uncertainty: 10000 meters. Georeferenced by WTU Staff. Coordinate Source: GeoLocate.
In rather dry, gravelly meadow. Plant annual, bluish-green, prostrate or semiprostrate; perianth segments green with white margins. Phenology: Flowers. Origin: Introduced.
WTU 197397
C. L. Hitchcock 21978    8 Aug 1959
with C. V. Muhlick
37. Polygonum aviculare L. ssp. buxiforme (Small) Costea & Tardif
Database ID
62161 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
197397 
Barcode
 
Other Numbers
 
Family
Polygonaceae 
Name on Specimen
Polygonum aviculare L. ssp. buxiforme (Small) Costea & Tardif 
Accepted Name
Polygonum aviculare L. ssp. buxiforme (Small) Costea & Tardif 
Annotation History
1. Polygonum aviculare L.
2. Polygonum aviculare L.
    Annotated by J. O. Coolidge, 15 1964.
3. Polygonum aviculare L. ssp. buxiforme (Small) Costea & Tardif.
    Annotated by Ben Legler, 5 2015.  
Type Notes
 
Collector
C. L. Hitchcock 
Collection #
21978 
Other Collectors
C. V. Muhlick 
Date Collected
8 Aug 1959 
Verbatim Date
 
Country
U.S.A. 
State or Province
Idaho 
County
Custer 
Locality
Fifteen miles west of Stanley, on road to Ketchum. 
Elevation
 
Coordinates
44.21139°, -114.945° 
Site Description
In rather dry, gravelly meadow. 
Specimen Notes
Plant annual, bluish-green, prostrate or semiprostrate; perianth segments green with white margins. 
Phenology
Flowers 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Polygonaceae
38. Polygonum aviculare L.
U.S.A., Idaho, Elmore County:
On north side of Snake River, 0.5 miles northeast of Grand View.
42.969545°, -115.185816°. Datum: WGS 84. Coordinate uncertainty: 10000 meters. Georeferenced by WTU Staff. Coordinate Source: GeoLocate.
In sandy flat. Phenology: Vegetative. Origin: Introduced.
WTU 213179
C. L. Hitchcock 22616    17 Jun 1963
with C. V. Muhlick
38. Polygonum aviculare L.
Database ID
62162 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
213179 
Barcode
 
Other Numbers
 
Family
Polygonaceae 
Name on Specimen
Polygonum aviculare L. 
Accepted Name
Polygonum aviculare L. 
Annotation History
1. Polygonum aviculare L.  
Type Notes
 
Collector
C. L. Hitchcock 
Collection #
22616 
Other Collectors
C. V. Muhlick 
Date Collected
17 Jun 1963 
Verbatim Date
 
Country
U.S.A. 
State or Province
Idaho 
County
Elmore 
Locality
On north side of Snake River, 0.5 miles northeast of Grand View. 
Elevation
 
Coordinates
42.969545°, -115.185816° 
Site Description
In sandy flat. 
Specimen Notes
 
Phenology
Vegetative 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Polygonaceae
39. Polygonum aviculare L.
U.S.A., Montana, Lewis and Clark County:
Along Wolf Creek.
Phenology: Flowers. Origin: Introduced.
WTU 28645
G. N. Jones 5403    10 Jul 1934
39. Polygonum aviculare L.
Database ID
62163 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
28645 
Barcode
 
Other Numbers
 
Family
Polygonaceae 
Name on Specimen
Polygonum aviculare L. 
Accepted Name
Polygonum aviculare L. 
Annotation History
1. Polygonum aviculare L.
2. Polygonum aviculare L.
    Annotated by J. O. Coolidge, 15 1964.  
Type Notes
 
Collector
G. N. Jones 
Collection #
5403 
Other Collectors
 
Date Collected
10 Jul 1934 
Verbatim Date
 
Country
U.S.A. 
State or Province
Montana 
County
Lewis and Clark 
Locality
Along Wolf Creek. 
Elevation
 
Coordinates
 
Site Description
 
Specimen Notes
 
Phenology
Flowers 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Polygonaceae
40. Polygonum aviculare L.
U.S.A., Oregon, Multnomah County:
East Portland.
In vacant lots. Phenology: Flowers. Origin: Introduced.
WTU 23834JWT
J. William Thompson 1687    25 Aug 1926
40. Polygonum aviculare L.
Database ID
62164 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
23834JWT 
Barcode
 
Other Numbers
 
Family
Polygonaceae 
Name on Specimen
Polygonum aviculare L. 
Accepted Name
Polygonum aviculare L. 
Annotation History
1. Polygonum aviculare L.
2. Polygonum aviculare L.
    Annotated by J. O. Coolidge, 13 1964.  
Type Notes
 
Collector
J. William Thompson 
Collection #
1687 
Other Collectors
 
Date Collected
25 Aug 1926 
Verbatim Date
 
Country
U.S.A. 
State or Province
Oregon 
County
Multnomah 
Locality
East Portland. 
Elevation
 
Coordinates
 
Site Description
In vacant lots. 
Specimen Notes
 
Phenology
Flowers 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Polygonaceae
41. Polygonum aviculare L. ssp. buxiforme (Small) Costea & Tardif
U.S.A., Washington, Grant County:
Lakes below Dry Falls Dam, Coulee City, below dam and Highway 2.
Elev. 1510-1550 ft. 47° 37' N, 119° 19' W; T25N R28E S33.
Pond and sagebrush next to dirt road. Stems lax. Phenology: Flowers. Origin: Introduced.
WTU 345046
Sarah Gage G&R 493    11 Jul 1992
with Sharon Rodman
41. Polygonum aviculare L. ssp. buxiforme (Small) Costea & Tardif
Database ID
62166 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
345046 
Barcode
 
Other Numbers
 
Family
Polygonaceae 
Name on Specimen
Polygonum aviculare L. ssp. buxiforme (Small) Costea & Tardif 
Accepted Name
Polygonum aviculare L. ssp. buxiforme (Small) Costea & Tardif 
Annotation History
1. Polygonum aviculare L.
2. Polygonum aviculare L. ssp. buxiforme (Small) Costea & Tardif.
    Annotated by Ben Legler, 5 2015.  
Type Notes
 
Collector
Sarah Gage 
Collection #
G&R 493 
Other Collectors
Sharon Rodman 
Date Collected
11 Jul 1992 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Grant 
Locality
Lakes below Dry Falls Dam, Coulee City, below dam and Highway 2. 
Elevation
1510-1550 ft. 
Coordinates
47° 37' N, 119° 19' W; T25N R28E S33 
Site Description
Pond and sagebrush next to dirt road. 
Specimen Notes
Stems lax. 
Phenology
Flowers 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Polygonaceae
42. Polygonum aviculare L.
U.S.A., Washington
Marysville.
Fields. Collection day not recorded. Phenology: Fertile. Origin: Introduced.
WTU 43747
J. M. Grant s.n.     Aug 1928
42. Polygonum aviculare L.
Database ID
62173 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
43747 
Barcode
 
Other Numbers
 
Family
Polygonaceae 
Name on Specimen
Polygonum aviculare L. 
Accepted Name
Polygonum aviculare L. 
Annotation History
1. Polygonum aviculare L.
2. Polygonum aviculare L.  
Type Notes
 
Collector
J. M. Grant 
Collection #
s.n. 
Other Collectors
 
Date Collected
Aug 1928 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
 
Locality
Marysville. 
Elevation
 
Coordinates
 
Site Description
Fields. 
Specimen Notes
Collection day not recorded. 
Phenology
Fertile 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Polygonaceae
43. Polygonum aviculare L. ssp. depressum (Meisner) Arcangeli
U.S.A., Washington, Snohomish County:
Silverton.
48.07861°, -121.56583°. Datum: WGS 84. Coordinate uncertainty: 10000 meters. Georeferenced by WTU Staff. Coordinate Source: GeoLocate.
Knot grass. Phenology: Flowers. Origin: Introduced.
WTU 6466
L. S. Bouck s.n.    30 Jul 1895
43. Polygonum aviculare L. ssp. depressum (Meisner) Arcangeli
Database ID
62175 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
6466 
Barcode
 
Other Numbers
 
Family
Polygonaceae 
Name on Specimen
Polygonum aviculare L. ssp. depressum (Meisner) Arcangeli 
Accepted Name
Polygonum aviculare L. ssp. depressum (Meisn.) Arcang. 
Annotation History
1. Polygonum aviculare L.
    Annotated by L. S. Bouck.
2. Polygonum aviculare L. ssp. depressum (Meisner) Arcangeli.
    Annotated by Ben Legler, 5 2015.  
Type Notes
 
Collector
L. S. Bouck 
Collection #
s.n. 
Other Collectors
 
Date Collected
30 Jul 1895 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Snohomish 
Locality
Silverton. 
Elevation
 
Coordinates
48.07861°, -121.56583° 
Site Description
Knot grass. 
Specimen Notes
 
Phenology
Flowers 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Polygonaceae
44. Polygonum aviculare L.
U.S.A., Washington, Okanogan County:
Green Lake, west of Omak.
48.44806°, -119.6275°. Datum: WGS 84. Coordinate uncertainty: 10000 meters. Georeferenced by WTU Staff. Coordinate Source: GeoLocate.
On bank of lake. Phenology: Fertile. Origin: Introduced.
WTU 23797JWT
Chas. B. Fiker 462    18 Aug 1931
44. Polygonum aviculare L.
Database ID
62176 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
23797JWT 
Barcode
 
Other Numbers
 
Family
Polygonaceae 
Name on Specimen
Polygonum aviculare L. 
Accepted Name
Polygonum aviculare L. 
Annotation History
1. Polygonum fowleri Robins.
2. Polygonum aviculare L.
3. Polygonum aviculare L.
    Annotated by J. O. Coolidge, 13 1964.  
Type Notes
 
Collector
Chas. B. Fiker 
Collection #
462 
Other Collectors
 
Date Collected
18 Aug 1931 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Okanogan 
Locality
Green Lake, west of Omak. 
Elevation
 
Coordinates
48.44806°, -119.6275° 
Site Description
On bank of lake. 
Specimen Notes
 
Phenology
Fertile 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Polygonaceae
45. Polygonum aviculare L.
U.S.A., Washington, Okanogan County:
Pogue Flat, west of Omak.
48.42139°, -119.54944°. Datum: WGS 84. Coordinate uncertainty: 5000 meters. Georeferenced by WTU Staff. Coordinate Source: GeoLocate.
Two specimens on sample. Phenology: Flowers. Origin: Introduced.
WTU 23799JWT-A
Chas. B. Fiker 318    10 Jul 1931
45. Polygonum aviculare L.
Database ID
62177 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
23799JWT-A 
Barcode
 
Other Numbers
 
Family
Polygonaceae 
Name on Specimen
Polygonum aviculare L. 
Accepted Name
Polygonum aviculare L. 
Annotation History
1. Polygonum aviculare L.
2. Polygonum aviculare L.
    Annotated by J. O. Coolidge, 13 1965.  
Type Notes
 
Collector
Chas. B. Fiker 
Collection #
318 
Other Collectors
 
Date Collected
10 Jul 1931 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Okanogan 
Locality
Pogue Flat, west of Omak. 
Elevation
 
Coordinates
48.42139°, -119.54944° 
Site Description
 
Specimen Notes
Two specimens on sample. 
Phenology
Flowers 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Polygonaceae
46. Polygonum aviculare L.
U.S.A., Oregon, Multnomah County:
East Portland.
In waste ground. Common. Two specimens on sample. Phenology: Flowers. Origin: Introduced.
WTU 23799JWT-B
J. William Thompson 498    2 Sep 1925
46. Polygonum aviculare L.
Database ID
62178 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
23799JWT-B 
Barcode
 
Other Numbers
 
Family
Polygonaceae 
Name on Specimen
Polygonum aviculare L. 
Accepted Name
Polygonum aviculare L. 
Annotation History
1. Polygonum aviculare L.
2. Polygonum aviculare L.
    Annotated by J. O. Coolidge, 13 1964.  
Type Notes
 
Collector
J. William Thompson 
Collection #
498 
Other Collectors
 
Date Collected
2 Sep 1925 
Verbatim Date
 
Country
U.S.A. 
State or Province
Oregon 
County
Multnomah 
Locality
East Portland. 
Elevation
 
Coordinates
 
Site Description
In waste ground. 
Specimen Notes
Common. Two specimens on sample. 
Phenology
Flowers 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Polygonaceae
47. Polygonum aviculare L.
U.S.A., Washington, King County:
Seattle.
Elev. 100 ft. 47.60639°, -122.33083°. Datum: WGS 84. Coordinate uncertainty: 10000 meters. Georeferenced by WTU Staff. Coordinate Source: GeoLocate.
In vacant lots. Common. Phenology: Flowers. Origin: Introduced.
WTU 274611
Delzie Demaree 60917    29 Aug 1969
47. Polygonum aviculare L.
Database ID
62179 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
274611 
Barcode
 
Other Numbers
 
Family
Polygonaceae 
Name on Specimen
Polygonum aviculare L. 
Accepted Name
Polygonum aviculare L. 
Annotation History
1. Polygonum sp.
2. Polygonum aviculare L.
    Annotated by J. Hill, 1971.  
Type Notes
 
Collector
Delzie Demaree 
Collection #
60917 
Other Collectors
 
Date Collected
29 Aug 1969 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
King 
Locality
Seattle. 
Elevation
100 ft. 
Coordinates
47.60639°, -122.33083° 
Site Description
In vacant lots. 
Specimen Notes
Common. 
Phenology
Flowers 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Polygonaceae
48. Polygonum aviculare L.
U.S.A., Washington, King County:
7227 - 6th Avenue Northwest, Seattle.
Elev. 200 ft. 47.60639°, -122.33083°. Datum: WGS 84. Coordinate uncertainty: 10000 meters. Georeferenced by WTU Staff. Coordinate Source: GeoLocate.
A garden weed. Phenology: Flowers. Origin: Introduced.
WTU 315844
Ruby L. C. Sovereign 371    1 Sep 1940
48. Polygonum aviculare L.
Database ID
62180 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
315844 
Barcode
 
Other Numbers
 
Family
Polygonaceae 
Name on Specimen
Polygonum aviculare L. 
Accepted Name
Polygonum aviculare L. 
Annotation History
1. Polygonum aviculare L.  
Type Notes
 
Collector
Ruby L. C. Sovereign 
Collection #
371 
Other Collectors
 
Date Collected
1 Sep 1940 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
King 
Locality
7227 - 6th Avenue Northwest, Seattle. 
Elevation
200 ft. 
Coordinates
47.60639°, -122.33083° 
Site Description
 
Specimen Notes
A garden weed. 
Phenology
Flowers 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Polygonaceae
49. Polygonum aviculare L.
U.S.A., Washington, King County:
Seattle.
47.613617°, -122.310098°. Datum: WGS 84. Coordinate uncertainty: 15750 meters. Georeferenced by Joseph Stormer. Coordinate Source: Digital Map.
Dry soil. Common, a knot weed. Phenology: Flowers. Origin: Introduced.
WTU 6461
F. Bouton s.n.    30 Oct 1911
49. Polygonum aviculare L.
Database ID
62181 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
6461 
Barcode
 
Other Numbers
 
Family
Polygonaceae 
Name on Specimen
Polygonum aviculare L. 
Accepted Name
Polygonum aviculare L. 
Annotation History
1. Polygonum fowleri Robins.
    Annotated by T. C. Frye.
2. Polygonum aviculare L.
    Annotated by J. O. Coolidge, 13 1964.  
Type Notes
 
Collector
F. Bouton 
Collection #
s.n. 
Other Collectors
 
Date Collected
30 Oct 1911 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
King 
Locality
Seattle. 
Elevation
 
Coordinates
47.613617°, -122.310098° 
Site Description
Dry soil. 
Specimen Notes
Common, a knot weed. 
Phenology
Flowers 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Polygonaceae
50. Polygonum aviculare L.
U.S.A., Washington, King County:
Quartermaster Harbor, Vashon Island.
47.40472°, -122.44833°. Datum: WGS 84. Coordinate uncertainty: 10000 meters. Georeferenced by WTU Staff. Coordinate Source: GeoLocate.
Sandspit. Phenology: Flowers. Origin: Introduced.
WTU 306291
Harold E. Helmrich 77    11 Aug 1932
50. Polygonum aviculare L.
Database ID
62183 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
306291 
Barcode
 
Other Numbers
 
Family
Polygonaceae 
Name on Specimen
Polygonum aviculare L. 
Accepted Name
Polygonum aviculare L. 
Annotation History
1. Polygonum aviculare L.  
Type Notes
 
Collector
Harold E. Helmrich 
Collection #
77 
Other Collectors
 
Date Collected
11 Aug 1932 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
King 
Locality
Quartermaster Harbor, Vashon Island. 
Elevation
 
Coordinates
47.40472°, -122.44833° 
Site Description
Sandspit. 
Specimen Notes
 
Phenology
Flowers 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Polygonaceae
51. Polygonum aviculare L.
U.S.A., Washington, King County:
Campus, University of Washington, Seattle.
47.60639°, -122.33083°. Datum: WGS 84. Coordinate uncertainty: 10000 meters. Georeferenced by WTU Staff. Coordinate Source: GeoLocate.
Weeds on path. Phenology: Fertile. Origin: Introduced.
WTU 22821
Geo. Neville Jones 4296     Oct 1932
51. Polygonum aviculare L.
Database ID
62184 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
22821 
Barcode
 
Other Numbers
 
Family
Polygonaceae 
Name on Specimen
Polygonum aviculare L. 
Accepted Name
Polygonum aviculare L. 
Annotation History
1. Polygonum aviculare L.
    Annotated by G. N. Jones.  
Type Notes
 
Collector
Geo. Neville Jones 
Collection #
4296 
Other Collectors
 
Date Collected
Oct 1932 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
King 
Locality
Campus, University of Washington, Seattle. 
Elevation
 
Coordinates
47.60639°, -122.33083° 
Site Description
Weeds on path. 
Specimen Notes
 
Phenology
Fertile 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Polygonaceae
52. Polygonum aviculare L. ssp. buxiforme (Small) Costea & Tardif
U.S.A., Washington, Kittitas County:
Yakima Training Center. Badger Gap, Training Area 3A.
Elev. 2380 ft. 708400E, 5191500N.
Roadside. Lower leaf surfaces densely white felty-tomentose. Association: Lactuca serriola, Salsola kali, Centaurea diffusa. Phenology: Flowers. Origin: Introduced.
WTU 358626
Joy Mastrogiuseppe 6329    27 Aug 1991
52. Polygonum aviculare L. ssp. buxiforme (Small) Costea & Tardif
Database ID
62185 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
358626 
Barcode
 
Other Numbers
 
Family
Polygonaceae 
Name on Specimen
Polygonum aviculare L. ssp. buxiforme (Small) Costea & Tardif 
Accepted Name
Polygonum aviculare L. ssp. buxiforme (Small) Costea & Tardif 
Annotation History
1. Polygonum aviculare L.
2. Polygonum aviculare L. ssp. buxiforme (Small) Costea & Tardif.
    Annotated by Ben Legler, 5 2015.  
Type Notes
 
Collector
Joy Mastrogiuseppe 
Collection #
6329 
Other Collectors
 
Date Collected
27 Aug 1991 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Kittitas 
Locality
Yakima Training Center. Badger Gap, Training Area 3A. 
Elevation
2380 ft. 
Coordinates
708400E, 5191500N 
Site Description
Roadside. 
Specimen Notes
Lower leaf surfaces densely white felty-tomentose. Association: Lactuca serriola, Salsola kali, Centaurea diffusa. 
Phenology
Flowers 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Polygonaceae
53. Polygonum aviculare L.
Canada, British Columbia
Moresby Island.
Sandspit area, in gravelly soil on old road into abandoned home in town. Locally common, prostrate. Phenology: Flowers.
WTU 240996
J. A. Calder 36019    17 Jul 1964
with R. L. Taylor
53. Polygonum aviculare L.
Database ID
62188 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
240996 
Barcode
 
Other Numbers
 
Family
Polygonaceae 
Name on Specimen
Polygonum aviculare L. 
Accepted Name
Polygonum aviculare L. 
Annotation History
1. Polygonum aviculare L.  
Type Notes
 
Collector
J. A. Calder 
Collection #
36019 
Other Collectors
R. L. Taylor 
Date Collected
17 Jul 1964 
Verbatim Date
 
Country
Canada 
State or Province
British Columbia 
County
 
Locality
Moresby Island. 
Elevation
 
Coordinates
 
Site Description
Sandspit area, in gravelly soil on old road into abandoned home in town. 
Specimen Notes
Locally common, prostrate. 
Phenology
Flowers 
Origin
 
Cultivated?
No 
Imaged?
No 

Polygonaceae
54. Polygonum aviculare L. ssp. buxiforme (Small) Costea & Tardif
U.S.A., Idaho, Teton County:
4 miles northeast of Driggs.
T4N R46E S17. Datum: WGS 84. Coordinate uncertainty: 1000 meters. Georeferenced by WTU Staff. Coordinate Source: GeoLocate.
Roadside weed. Phenology: Flowers. Origin: Introduced.
WTU 295784
W. H. Baker 9734    12 Aug 1952
54. Polygonum aviculare L. ssp. buxiforme (Small) Costea & Tardif
Database ID
62189 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
295784 
Barcode
 
Other Numbers
 
Family
Polygonaceae 
Name on Specimen
Polygonum aviculare L. ssp. buxiforme (Small) Costea & Tardif 
Accepted Name
Polygonum aviculare L. ssp. buxiforme (Small) Costea & Tardif 
Annotation History
1. Polygonum aviculare L.
2. Polygonum aviculare L. ssp. buxiforme (Small) Costea & Tardif.
    Annotated by Ben Legler, 5 2015.  
Type Notes
 
Collector
W. H. Baker 
Collection #
9734 
Other Collectors
 
Date Collected
12 Aug 1952 
Verbatim Date
 
Country
U.S.A. 
State or Province
Idaho 
County
Teton 
Locality
4 miles northeast of Driggs. 
Elevation
 
Coordinates
T4N R46E S17 
Site Description
 
Specimen Notes
Roadside weed. 
Phenology
Flowers 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Polygonaceae
55. Polygonum aviculare L.
U.S.A., Oregon, Baker County:
8 miles southeast of LaGrand.
Growing in intermixed with P. majus. Flowers tending not to open, the perianth segments cucullate, greenish with whitish, lavender margins. Phenology: Vegetative. Origin: Introduced.
WTU 195130
C. L. Hitchcock 21763    7 Jun 1959
with C. V. Muhlick
55. Polygonum aviculare L.
Database ID
62190 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
195130 
Barcode
 
Other Numbers
 
Family
Polygonaceae 
Name on Specimen
Polygonum aviculare L. 
Accepted Name
Polygonum aviculare L. 
Annotation History
1. Polygonum aviculare L.
2. Polygonum aviculare L.
    Annotated by J. O. Coolidge, 15 1964.  
Type Notes
 
Collector
C. L. Hitchcock 
Collection #
21763 
Other Collectors
C. V. Muhlick 
Date Collected
7 Jun 1959 
Verbatim Date
 
Country
U.S.A. 
State or Province
Oregon 
County
Baker 
Locality
8 miles southeast of LaGrand. 
Elevation
 
Coordinates
 
Site Description
Growing in intermixed with P. majus. 
Specimen Notes
Flowers tending not to open, the perianth segments cucullate, greenish with whitish, lavender margins. 
Phenology
Vegetative 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Polygonaceae
56. Polygonum aviculare L.
U.S.A., Idaho, Bannock County:
Pocatello.
T6S R34E. Datum: WGS 84. Coordinate uncertainty: 10000 meters. Georeferenced by WTU Staff. Coordinate Source: GeoLocate.
On canal bank. Phenology: Fertile. Origin: Introduced.
WTU 98828
Ray J. Davis 3012    2 Sep 1940
56. Polygonum aviculare L.
Database ID
62191 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
98828 
Barcode
 
Other Numbers
 
Family
Polygonaceae 
Name on Specimen
Polygonum aviculare L. 
Accepted Name
Polygonum aviculare L. 
Annotation History
1. Polygonum buxiforme Small.
2. Polygonum aviculare L.  
Type Notes
 
Collector
Ray J. Davis 
Collection #
3012 
Other Collectors
 
Date Collected
2 Sep 1940 
Verbatim Date
 
Country
U.S.A. 
State or Province
Idaho 
County
Bannock 
Locality
Pocatello. 
Elevation
 
Coordinates
T6S R34E 
Site Description
On canal bank. 
Specimen Notes
 
Phenology
Fertile 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Polygonaceae
57. Polygonum aviculare L. ssp. buxiforme (Small) Costea & Tardif
U.S.A., Idaho, Owyhee County:
North slope of War Eagle Mountain, Silver City Range.
43.01694°, -116.73222°. Datum: WGS 84. Coordinate uncertainty: 10000 meters. Georeferenced by WTU Staff. Coordinate Source: GeoLocate.
In dry gravelly wash. Frequent. Phenology: Flowers. Origin: Introduced.
WTU 295017
William H. Baker 8134    21 Jul 1951
57. Polygonum aviculare L. ssp. buxiforme (Small) Costea & Tardif
Database ID
62192 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
295017 
Barcode
 
Other Numbers
 
Family
Polygonaceae 
Name on Specimen
Polygonum aviculare L. ssp. buxiforme (Small) Costea & Tardif 
Accepted Name
Polygonum aviculare L. ssp. buxiforme (Small) Costea & Tardif 
Annotation History
1. Polygonum aviculare L.
2. Polygonum aviculare L. ssp. buxiforme (Small) Costea & Tardif.
    Annotated by Ben Legler, 5 2015.  
Type Notes
 
Collector
William H. Baker 
Collection #
8134 
Other Collectors
 
Date Collected
21 Jul 1951 
Verbatim Date
 
Country
U.S.A. 
State or Province
Idaho 
County
Owyhee 
Locality
North slope of War Eagle Mountain, Silver City Range. 
Elevation
 
Coordinates
43.01694°, -116.73222° 
Site Description
In dry gravelly wash. 
Specimen Notes
Frequent. 
Phenology
Flowers 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Polygonaceae
58. Polygonum aviculare L. var. angustissimum Meisn.
     (= Polygonum aviculare L. var. angustissimum Meisn.)
U.S.A., Montana, Ravalli County:
Adjacent to Highway, 15 miles north of Hamilton.
In gravelly, roadside bank. Plants semiprostrate; perianth segments with greenish to purplish midsection and white to pink or purplish margins. Phenology: Fertile.
WTU 196400
C. L. Hitchcock 21938    6 Aug 1959
with C. V. Muhlick
58. Polygonum aviculare L. var. angustissimum Meisn.
Database ID
62193 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
196400 
Barcode
 
Other Numbers
 
Family
Polygonaceae 
Name on Specimen
Polygonum aviculare L. var. angustissimum Meisn. 
Accepted Name
Polygonum aviculare L. var. angustissimum Meisn. 
Annotation History
1. Polygonum aviculare L.
2. Polygonum aviculare L. var. angustissinum.
    Annotated by J. O. Coolidge, 15 1964.  
Type Notes
 
Collector
C. L. Hitchcock 
Collection #
21938 
Other Collectors
C. V. Muhlick 
Date Collected
6 Aug 1959 
Verbatim Date
 
Country
U.S.A. 
State or Province
Montana 
County
Ravalli 
Locality
Adjacent to Highway, 15 miles north of Hamilton. 
Elevation
 
Coordinates
 
Site Description
In gravelly, roadside bank. 
Specimen Notes
Plants semiprostrate; perianth segments with greenish to purplish midsection and white to pink or purplish margins. 
Phenology
Fertile 
Origin
 
Cultivated?
No 
Imaged?
No 

Polygonaceae
59. Polygonum aviculare L.
U.S.A., Montana, Powell County:
[Circa] 7 miles southeast of Ovando, Black Foot Valley.
Along roadside. Common weed. Phenology: Flowers. Origin: Introduced.
WTU 98476
C. L. Hitchcock 11554    26 Jun 1945
with C. V. Muhlick
59. Polygonum aviculare L.
Database ID
62194 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
98476 
Barcode
 
Other Numbers
 
Family
Polygonaceae 
Name on Specimen
Polygonum aviculare L. 
Accepted Name
Polygonum aviculare L. 
Annotation History
1. Polygonum aviculare L.  
Type Notes
 
Collector
C. L. Hitchcock 
Collection #
11554 
Other Collectors
C. V. Muhlick 
Date Collected
26 Jun 1945 
Verbatim Date
 
Country
U.S.A. 
State or Province
Montana 
County
Powell 
Locality
[Circa] 7 miles southeast of Ovando, Black Foot Valley. 
Elevation
 
Coordinates
 
Site Description
Along roadside. 
Specimen Notes
Common weed. 
Phenology
Flowers 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Polygonaceae
60. Polygonum aviculare L. ssp. buxiforme (Small) Costea & Tardif
U.S.A., Montana, Carter County:
Alzada, 10 miles north.
Gravel along roadside, found in grassland where turf is disturbed. Phenology: Fertile. Origin: Introduced.
WTU 134748
W. E. Booth 2656    19 Jul 1948
60. Polygonum aviculare L. ssp. buxiforme (Small) Costea & Tardif
Database ID
62341 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
134748 
Barcode
 
Other Numbers
 
Family
Polygonaceae 
Name on Specimen
Polygonum aviculare L. ssp. buxiforme (Small) Costea & Tardif 
Accepted Name
Polygonum aviculare L. ssp. buxiforme (Small) Costea & Tardif 
Annotation History
1. Polygonum aviculare L.
2. Polygonum aviculare L. ssp. buxiforme (Small) Costea & Tardif.
    Annotated by Ben Legler, 5 2015.  
Type Notes
 
Collector
W. E. Booth 
Collection #
2656 
Other Collectors
 
Date Collected
19 Jul 1948 
Verbatim Date
 
Country
U.S.A. 
State or Province
Montana 
County
Carter 
Locality
Alzada, 10 miles north. 
Elevation
 
Coordinates
 
Site Description
Gravel along roadside, found in grassland where turf is disturbed. 
Specimen Notes
 
Phenology
Fertile 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Polygonaceae
61. Polygonum aviculare L.
U.S.A., Montana
Bozeman.
45.678214°, -111.079757°. Coordinate uncertainty: 12000 meters.
In a yard. Phenology: Flowers. Origin: Introduced.
WTU 36680
J.W. Blankinship s.n.    18 Jul 1898
61. Polygonum aviculare L.
Database ID
62343 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
36680 
Barcode
 
Other Numbers
 
Family
Polygonaceae 
Name on Specimen
Polygonum aviculare L. 
Accepted Name
Polygonum aviculare L. 
Annotation History
1. Polygonum littorale Link.
2. Polygonum aviculare L.  
Type Notes
 
Collector
J.W. Blankinship 
Collection #
s.n. 
Other Collectors
 
Date Collected
18 Jul 1898 
Verbatim Date
 
Country
U.S.A. 
State or Province
Montana 
County
 
Locality
Bozeman. 
Elevation
 
Coordinates
45.678214°, -111.079757° 
Site Description
In a yard. 
Specimen Notes
 
Phenology
Flowers 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Polygonaceae
62. Polygonum aviculare L.
U.S.A., Oregon, Josephine County:
Along Big Tree Trail at Cave Creek. Oregon National Mounument.
Dry meadow along trail. Phenology: Flowers. Origin: Introduced.
WTU 294886
William H. Baker 530    2 Aug 1949
with George C. Ruhle
62. Polygonum aviculare L.
Database ID
62345 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
294886 
Barcode
 
Other Numbers
 
Family
Polygonaceae 
Name on Specimen
Polygonum aviculare L. 
Accepted Name
Polygonum aviculare L. 
Annotation History
1. Polygonum aviculare L.  
Type Notes
 
Collector
William H. Baker 
Collection #
530 
Other Collectors
George C. Ruhle 
Date Collected
2 Aug 1949 
Verbatim Date
 
Country
U.S.A. 
State or Province
Oregon 
County
Josephine 
Locality
Along Big Tree Trail at Cave Creek. Oregon National Mounument. 
Elevation
 
Coordinates
 
Site Description
Dry meadow along trail. 
Specimen Notes
 
Phenology
Flowers 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Polygonaceae
63. Polygonum aviculare L.
U.S.A., Idaho, Cassia County:
Along Marsh Creek, 4 miles east of Declo.
42.527423°, -113.54813°. Datum: WGS 84. Coordinate uncertainty: 1000 meters. Georeferenced by WTU Staff. Coordinate Source: GeoLocate.
In swampy ground. Frequent. Phenology: Fertile. Origin: Introduced.
WTU 294900
William H. Baker 8687    24 Aug 1951
63. Polygonum aviculare L.
Database ID
62346 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
294900 
Barcode
 
Other Numbers
 
Family
Polygonaceae 
Name on Specimen
Polygonum aviculare L. 
Accepted Name
Polygonum aviculare L. 
Annotation History
1. Polygonum aviculare L.  
Type Notes
 
Collector
William H. Baker 
Collection #
8687 
Other Collectors
 
Date Collected
24 Aug 1951 
Verbatim Date
 
Country
U.S.A. 
State or Province
Idaho 
County
Cassia 
Locality
Along Marsh Creek, 4 miles east of Declo. 
Elevation
 
Coordinates
42.527423°, -113.54813° 
Site Description
In swampy ground. 
Specimen Notes
Frequent. 
Phenology
Fertile 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Polygonaceae
64. Polygonum aviculare L. ssp. buxiforme (Small) Costea & Tardif
Canada, British Columbia
14 miles by road south of Cache Creek.
Elev. 1700 ft.
Around margin and over bottom of small dried up pond, open range country. Phenology: Flowers. Origin: Introduced.
WTU 172027
J. A. Calder 10388    12 Jul 1953
with D. B. O. Savile
64. Polygonum aviculare L. ssp. buxiforme (Small) Costea & Tardif
Database ID
62347 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
172027 
Barcode
 
Other Numbers
 
Family
Polygonaceae 
Name on Specimen
Polygonum aviculare L. ssp. buxiforme (Small) Costea & Tardif 
Accepted Name
Polygonum aviculare L. ssp. buxiforme (Small) Costea & Tardif 
Annotation History
1. Polygonum aviculare L.
2. Polygonum aviculare L. ssp. buxiforme (Small) Costea & Tardif.
    Annotated by Ben Legler, 5 2015.  
Type Notes
 
Collector
J. A. Calder 
Collection #
10388 
Other Collectors
D. B. O. Savile 
Date Collected
12 Jul 1953 
Verbatim Date
 
Country
Canada 
State or Province
British Columbia 
County
 
Locality
14 miles by road south of Cache Creek. 
Elevation
1700 ft. 
Coordinates
 
Site Description
Around margin and over bottom of small dried up pond, open range country. 
Specimen Notes
 
Phenology
Flowers 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Polygonaceae
65. Polygonum aviculare L. ssp. buxiforme (Small) Costea & Tardif
U.S.A., Idaho, Custer County:
Stanley Creek, 2 miles east of Stanley Lake.
44.266659°, -114.945006°. Datum: WGS 84. Coordinate uncertainty: 1000 meters. Georeferenced by WTU Staff. Coordinate Source: GeoLocate.
Growing in gravel. Plants roadside weed, annual, prostrate; perianth segments slightly keeled, green with narrow white margins. Phenology: Flowers. Origin: Introduced.
WTU 197486
C. L. Hitchcock 21969    7 Aug 1959
with C. V. Muhlick
65. Polygonum aviculare L. ssp. buxiforme (Small) Costea & Tardif
Database ID
62349 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
197486 
Barcode
 
Other Numbers
 
Family
Polygonaceae 
Name on Specimen
Polygonum aviculare L. ssp. buxiforme (Small) Costea & Tardif 
Accepted Name
Polygonum aviculare L. ssp. buxiforme (Small) Costea & Tardif 
Annotation History
1. Polygonum aviculare L.
2. Polygonum aviculare L.
    Annotated by J. O. Coolidge, 15 1964.
3. Polygonum aviculare L. ssp. buxiforme (Small) Costea & Tardif.
    Annotated by Ben Legler, 5 2015.  
Type Notes
 
Collector
C. L. Hitchcock 
Collection #
21969 
Other Collectors
C. V. Muhlick 
Date Collected
7 Aug 1959 
Verbatim Date
 
Country
U.S.A. 
State or Province
Idaho 
County
Custer 
Locality
Stanley Creek, 2 miles east of Stanley Lake. 
Elevation
 
Coordinates
44.266659°, -114.945006° 
Site Description
Growing in gravel. 
Specimen Notes
Plants roadside weed, annual, prostrate; perianth segments slightly keeled, green with narrow white margins. 
Phenology
Flowers 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Polygonaceae
66. Polygonum aviculare L.
U.S.A., Idaho, Custer County:
10 miles west of Clayton.
44.259262°, -114.603056°. Datum: WGS 84. Coordinate uncertainty: 1000 meters. Georeferenced by WTU Staff. Coordinate Source: GeoLocate.
Sagebrush flats. Roadside weed. Phenology: Fertile. Origin: Introduced.
WTU 91766
C. L. Hitchcock 10772    5 Aug 1944
66. Polygonum aviculare L.
Database ID
62352 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
91766 
Barcode
 
Other Numbers
 
Family
Polygonaceae 
Name on Specimen
Polygonum aviculare L. 
Accepted Name
Polygonum aviculare L. 
Annotation History
1. Polygonum sawatchense Small.
2. Polygonum aviculare L.  
Type Notes
 
Collector
C. L. Hitchcock 
Collection #
10772 
Other Collectors
 
Date Collected
5 Aug 1944 
Verbatim Date
 
Country
U.S.A. 
State or Province
Idaho 
County
Custer 
Locality
10 miles west of Clayton. 
Elevation
 
Coordinates
44.259262°, -114.603056° 
Site Description
Sagebrush flats. 
Specimen Notes
Roadside weed. 
Phenology
Fertile 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Polygonaceae
67. Polygonum aviculare L.
U.S.A., Oregon, Malheur County:
11 miles southeast of Folly Farm.
In heavy clay soil in dried lake bottom. Frequent. Phenology: Fertile. Origin: Introduced.
WTU 111677
Bassett Maguire 26401    13 Jun 1946
with Arthur H. Holmgren
67. Polygonum aviculare L.
Database ID
62356 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
111677 
Barcode
 
Other Numbers
 
Family
Polygonaceae 
Name on Specimen
Polygonum aviculare L. 
Accepted Name
Polygonum aviculare L. 
Annotation History
1. Polygonum aviculare L.  
Type Notes
 
Collector
Bassett Maguire 
Collection #
26401 
Other Collectors
Arthur H. Holmgren 
Date Collected
13 Jun 1946 
Verbatim Date
 
Country
U.S.A. 
State or Province
Oregon 
County
Malheur 
Locality
11 miles southeast of Folly Farm. 
Elevation
 
Coordinates
 
Site Description
In heavy clay soil in dried lake bottom. 
Specimen Notes
Frequent. 
Phenology
Fertile 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Polygonaceae
68. Polygonum aviculare L. ssp. depressum (Meisner) Arcangeli
U.S.A., Oregon, Harney County:
Southeast section of the Squaw Butte Experimental Station.
In heavy soil in small lake bed. Frequent. Phenology: Fertile. Origin: Introduced.
WTU 111676
Bassett Maguire 26482    17 Jun 1946
with Arthur H. Holmgren
68. Polygonum aviculare L. ssp. depressum (Meisner) Arcangeli
Database ID
62358 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
111676 
Barcode
 
Other Numbers
 
Family
Polygonaceae 
Name on Specimen
Polygonum aviculare L. ssp. depressum (Meisner) Arcangeli 
Accepted Name
Polygonum aviculare L. ssp. depressum (Meisn.) Arcang. 
Annotation History
1. Polygonum aviculare L.
2. Polygonum aviculare L. ssp. depressum (Meisner) Arcangeli.
    Annotated by Ben Legler, 5 2015.  
Type Notes
 
Collector
Bassett Maguire 
Collection #
26482 
Other Collectors
Arthur H. Holmgren 
Date Collected
17 Jun 1946 
Verbatim Date
 
Country
U.S.A. 
State or Province
Oregon 
County
Harney 
Locality
Southeast section of the Squaw Butte Experimental Station. 
Elevation
 
Coordinates
 
Site Description
In heavy soil in small lake bed. 
Specimen Notes
Frequent. 
Phenology
Fertile 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Polygonaceae
69. Polygonum aviculare L.
Canada, British Columbia
At head of Dease Lake.
In forest humus but in middle of new wood-road, open. Possibly introduced. Phenology: Fertile.
WTU 73151
T. T. McCabe 8784    3 Aug 1941
69. Polygonum aviculare L.
Database ID
62360 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
73151 
Barcode
 
Other Numbers
 
Family
Polygonaceae 
Name on Specimen
Polygonum aviculare L. 
Accepted Name
Polygonum aviculare L. 
Annotation History
1. Polygonum aviculare L.  
Type Notes
 
Collector
T. T. McCabe 
Collection #
8784 
Other Collectors
 
Date Collected
3 Aug 1941 
Verbatim Date
 
Country
Canada 
State or Province
British Columbia 
County
 
Locality
At head of Dease Lake. 
Elevation
 
Coordinates
 
Site Description
In forest humus but in middle of new wood-road, open. 
Specimen Notes
Possibly introduced. 
Phenology
Fertile 
Origin
 
Cultivated?
No 
Imaged?
No 

Polygonaceae
70. Polygonum aviculare L.
U.S.A., Oregon, Benton County:
[No locality given on label]
Collection day not recorded. Phenology: Fertile. Origin: Introduced.
WTU 74458
Helen M. Gilkey s.n.     Jul 1912
70. Polygonum aviculare L.
Database ID
62363 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
74458 
Barcode
 
Other Numbers
 
Family
Polygonaceae 
Name on Specimen
Polygonum aviculare L. 
Accepted Name
Polygonum aviculare L. 
Annotation History
1. Polygonum aviculare L.  
Type Notes
 
Collector
Helen M. Gilkey 
Collection #
s.n. 
Other Collectors
 
Date Collected
Jul 1912 
Verbatim Date
 
Country
U.S.A. 
State or Province
Oregon 
County
Benton 
Locality
[No locality given on label] 
Elevation
 
Coordinates
 
Site Description
 
Specimen Notes
Collection day not recorded. 
Phenology
Fertile 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Polygonaceae
71. Polygonum aviculare L.
U.S.A., Oregon, Umatilla County:
Blue Mountains, between Ukiah and Anthony Lakes.
T6S R33E S17. Datum: NAD 27. Coordinate uncertainty: 805 meters. Georeferenced by Ben Legler. Coordinate Source: TRS2LL.
Open dry park in ponderosa pine forest, on dry roadside. Plants prostrate; perianth segments nearly equal, spreading at anthesis, then closed, greenish with white (later pink) margins. Phenology: Fertile. Origin: Introduced.
WTU 209387
C. L. Hitchcock 21894    2 Aug 1959
with C. V. Muhlick
71. Polygonum aviculare L.
Database ID
62365 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
209387 
Barcode
 
Other Numbers
 
Family
Polygonaceae 
Name on Specimen
Polygonum aviculare L. 
Accepted Name
Polygonum aviculare L. 
Annotation History
1. Polygonum aviculare L.  
Type Notes
 
Collector
C. L. Hitchcock 
Collection #
21894 
Other Collectors
C. V. Muhlick 
Date Collected
2 Aug 1959 
Verbatim Date
 
Country
U.S.A. 
State or Province
Oregon 
County
Umatilla 
Locality
Blue Mountains, between Ukiah and Anthony Lakes. 
Elevation
 
Coordinates
T6S R33E S17 
Site Description
Open dry park in ponderosa pine forest, on dry roadside. 
Specimen Notes
Plants prostrate; perianth segments nearly equal, spreading at anthesis, then closed, greenish with white (later pink) margins. 
Phenology
Fertile 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Polygonaceae
72. Polygonum aviculare L.
U.S.A., Idaho, Bonner County:
Priest River Experimental Forest.
48.355678°, -116.787586°. Datum: WGS 84. Coordinate uncertainty: 4000 meters. Georeferenced by Melissa Bowers. Coordinate Source: Digital Map.
Open, herbaceous, with arbovitae-hemlock vegetation zone, near roadway. Phenology: Fertile. Origin: Introduced.
WTU 251363
R. F. Daubenmire 44463    17 Sep 1944
72. Polygonum aviculare L.
Database ID
62371 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
251363 
Barcode
 
Other Numbers
 
Family
Polygonaceae 
Name on Specimen
Polygonum aviculare L. 
Accepted Name
Polygonum aviculare L. 
Annotation History
1. Polygonum aviculare L.  
Type Notes
 
Collector
R. F. Daubenmire 
Collection #
44463 
Other Collectors
 
Date Collected
17 Sep 1944 
Verbatim Date
 
Country
U.S.A. 
State or Province
Idaho 
County
Bonner 
Locality
Priest River Experimental Forest. 
Elevation
 
Coordinates
48.355678°, -116.787586° 
Site Description
Open, herbaceous, with arbovitae-hemlock vegetation zone, near roadway. 
Specimen Notes
 
Phenology
Fertile 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Polygonaceae
73. Polygonum aviculare L.
U.S.A., Montana, Teton County:
2 miles west of Fairfield.
Disturbed area. Phenology: Fertile. Origin: Introduced.
WTU 197060
Richard R. Knight s.n.    2 Aug 1959
73. Polygonum aviculare L.
Database ID
62374 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
197060 
Barcode
 
Other Numbers
 
Family
Polygonaceae 
Name on Specimen
Polygonum aviculare L. 
Accepted Name
Polygonum aviculare L. 
Annotation History
1. Polygonum aviculare L.
2. Polygonum aviculare L.
    Annotated by J. O. Coolidge, 15 1964.  
Type Notes
 
Collector
Richard R. Knight 
Collection #
s.n. 
Other Collectors
 
Date Collected
2 Aug 1959 
Verbatim Date
 
Country
U.S.A. 
State or Province
Montana 
County
Teton 
Locality
2 miles west of Fairfield. 
Elevation
 
Coordinates
 
Site Description
Disturbed area. 
Specimen Notes
 
Phenology
Fertile 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Polygonaceae
74. Polygonum aviculare L. ssp. aviculare
U.S.A., Washington, San Juan County:
Orcs Island, Buck Bay near Olga.
Elev. 0 ft. T36N R1W S9. Datum: WGS 84. Coordinate uncertainty: 200 meters. Georeferenced by WTU Staff. Coordinate Source: Georeferenced.
On sand and mud shore with Atriplex patula, Spergularia canadensis, Salicornia virginica. Occasional annual or biennial littoral forb, apparently taxonomocally confused with Polygonum aviculare var. littorale. Phenology: Vegetative. Origin: Native.
WTU 293401
Peter E. Rapp 68    1 Jul 1981
74. Polygonum aviculare L. ssp. aviculare
Database ID
62513 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
293401 
Barcode
 
Other Numbers
 
Family
Polygonaceae 
Name on Specimen
Polygonum aviculare L. ssp. aviculare  
Accepted Name
Polygonum aviculare L. ssp. aviculare  
Annotation History
1. Polygonum fowleri Robins.
2. Polygonum aviculare L. ssp. aviculare.
    Annotated by Ben Legler, 5 2015.  
Type Notes
 
Collector
Peter E. Rapp 
Collection #
68 
Other Collectors
 
Date Collected
1 Jul 1981 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
San Juan 
Locality
Orcs Island, Buck Bay near Olga. 
Elevation
0 ft. 
Coordinates
T36N R1W S9 
Site Description
On sand and mud shore with Atriplex patula, Spergularia canadensis, Salicornia virginica. 
Specimen Notes
Occasional annual or biennial littoral forb, apparently taxonomocally confused with Polygonum aviculare var. littorale. 
Phenology
Vegetative 
Origin
Native 
Cultivated?
No 
Imaged?
No 

Polygonaceae
75. Polygonum aviculare L. ssp. depressum (Meisner) Arcangeli
U.S.A., Washington, Snohomish County:
About 8 kilometers north of Everett; mouth of Quilceda Creek; bench just above hightide line and just behind log boom.
Elev. 0 ft. 48° 2.712' N, 122° 12.415' W.
Dominated by Carex sp. Phenology: Flowers & Fruits. Origin: Introduced.
WTU 364607
David Giblin 253    16 Sep 2005
with Ben Legler
75. Polygonum aviculare L. ssp. depressum (Meisner) Arcangeli
Database ID
119383 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
364607 
Barcode
 
Other Numbers
 
Family
Polygonaceae 
Name on Specimen
Polygonum aviculare L. ssp. depressum (Meisner) Arcangeli 
Accepted Name
Polygonum aviculare L. ssp. depressum (Meisn.) Arcang. 
Annotation History
1. Polygonum aviculare L. ssp. depressum (Meisner) Arcangeli.
    Annotated by David Giblin, 2005. Sources: FNA.  
Type Notes
 
Collector
David Giblin 
Collection #
253 
Other Collectors
Ben Legler 
Date Collected
16 Sep 2005 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Snohomish 
Locality
About 8 kilometers north of Everett; mouth of Quilceda Creek; bench just above hightide line and just behind log boom. 
Elevation
0 ft. 
Coordinates
48° 2.712' N, 122° 12.415' W 
Site Description
Dominated by Carex sp. 
Specimen Notes
 
Phenology
Flowers & Fruits 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Polygonaceae
76. Polygonum aviculare L.
U.S.A., Washington, San Juan County:
San Juan Islands. Iceberg Island.
Elev. 0-30 ft. 48° 25.625' N, 122° 53.354' W. Datum: WGS 84. Coordinate Source: GPS.
Island is low, relatively flat, with extensive bedrock outcrops throughout. Sedum lanceolatum is abundant across the bedrock. A large swale in mid-island is dense Rosa nutkana thicket. A couple of small vernal pools in the bedrock near the south side are noteworthy. Occasional in bedrock crevices. Phenology: Fruits. Origin: Introduced.
WTU 394522
Joe Bennett 06-51    6 Sep 2006
76. Polygonum aviculare L.
Database ID
154173 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
394522 
Barcode
 
Other Numbers
 
Family
Polygonaceae 
Name on Specimen
Polygonum aviculare L. 
Accepted Name
Polygonum aviculare L. 
Annotation History
1. Polygonum aviculare L.
    Annotated by David Giblin, 24 2006. Sources: FNA.  
Type Notes
 
Collector
Joe Bennett 
Collection #
06-51 
Other Collectors
 
Date Collected
6 Sep 2006 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
San Juan 
Locality
San Juan Islands. Iceberg Island. 
Elevation
0-30 ft. 
Coordinates
48° 25.625' N, 122° 53.354' W 
Site Description
Island is low, relatively flat, with extensive bedrock outcrops throughout. Sedum lanceolatum is abundant across the bedrock. A large swale in mid-island is dense Rosa nutkana thicket. A couple of small vernal pools in the bedrock near the south side are noteworthy. 
Specimen Notes
Occasional in bedrock crevices. 
Phenology
Fruits 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Polygonaceae
77. Polygonum aviculare L.
U.S.A., Washington, San Juan County:
San Juan Islands. Barren Island.
Elev. 30 ft. 48° 37.366' N, 123° 9.361' W.
Bedrock dome rising 30 feet above the water; 0.53 acres, measured with GPS. Lushly covered with Camas and Plectritis. A few plants on beach with Artiplex species. Phenology: Fruits. Origin: Introduced.
WTU 393030
Joe Bennett 06-73    7 Sep 2006
77. Polygonum aviculare L.
Database ID
154179 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
393030 
Barcode
 
Other Numbers
 
Family
Polygonaceae 
Name on Specimen
Polygonum aviculare L. 
Accepted Name
Polygonum aviculare L. 
Annotation History
1. Polygonum aviculare L.
    Annotated by David Giblin, 24 2006. Sources: FNA.  
Type Notes
 
Collector
Joe Bennett 
Collection #
06-73 
Other Collectors
 
Date Collected
7 Sep 2006 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
San Juan 
Locality
San Juan Islands. Barren Island. 
Elevation
30 ft. 
Coordinates
48° 37.366' N, 123° 9.361' W 
Site Description
Bedrock dome rising 30 feet above the water; 0.53 acres, measured with GPS. Lushly covered with Camas and Plectritis. 
Specimen Notes
A few plants on beach with Artiplex species. 
Phenology
Fruits 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Polygonaceae
78. Polygonum aviculare L. ssp. buxiforme (Small) Costea & Tardif
U.S.A., Washington, San Juan County:
San Juan Islands. Long Island, south side islet, NWR #3. South end of island #2 in series (island at high tide).
Elev. 0-16 ft. 48° 26.293' N, 122° 55.542' W. Datum: WGS 84. Coordinate Source: GPS.
Flat, very dense red fescue meadow with thick organic layer; occasional rock outcrops; 0.63 acres (measured area with GPS). Occasional in bedrock crevices. Phenology: Fruits. Origin: Introduced.
WTU 392596
John Floberg 06-01    6 Sep 2006
78. Polygonum aviculare L. ssp. buxiforme (Small) Costea & Tardif
Database ID
154181 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
392596 
Barcode
 
Other Numbers
 
Family
Polygonaceae 
Name on Specimen
Polygonum aviculare L. ssp. buxiforme (Small) Costea & Tardif 
Accepted Name
Polygonum aviculare L. ssp. buxiforme (Small) Costea & Tardif 
Annotation History
1. Polygonum aviculare L.
    Annotated by David Giblin, 24 2006. Sources: FNA.
2. Polygonum aviculare L. ssp. buxiforme (Small) Costea & Tardif.
    Annotated by Ben Legler, 2015.  
Type Notes
 
Collector
John Floberg 
Collection #
06-01 
Other Collectors
 
Date Collected
6 Sep 2006 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
San Juan 
Locality
San Juan Islands. Long Island, south side islet, NWR #3. South end of island #2 in series (island at high tide). 
Elevation
0-16 ft. 
Coordinates
48° 26.293' N, 122° 55.542' W 
Site Description
Flat, very dense red fescue meadow with thick organic layer; occasional rock outcrops; 0.63 acres (measured area with GPS). 
Specimen Notes
Occasional in bedrock crevices. 
Phenology
Fruits 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Polygonaceae
79. Polygonum aviculare L. ssp. buxiforme (Small) Costea & Tardif
U.S.A., Washington, San Juan County:
San Juan Islands. Low Island.
Elev. 0-3 ft. 48° 35.354' N, 123° 1.553' W.
Very low rock and gravel island. Lots of Elymus mollis. Occasional in rock crevices close to shore. Phenology: Fruits. Origin: Introduced.
WTU 392732
John Floberg 06-37    8 Sep 2006
79. Polygonum aviculare L. ssp. buxiforme (Small) Costea & Tardif
Database ID
154194 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
392732 
Barcode
 
Other Numbers
 
Family
Polygonaceae 
Name on Specimen
Polygonum aviculare L. ssp. buxiforme (Small) Costea & Tardif 
Accepted Name
Polygonum aviculare L. ssp. buxiforme (Small) Costea & Tardif 
Annotation History
1. Polygonum aviculare L.
    Annotated by David Giblin, 24 2006. Sources: FNA.
2. Polygonum aviculare L. ssp. buxiforme (Small) Costea & Tardif.
    Annotated by Ben Legler, 5 2015.  
Type Notes
 
Collector
John Floberg 
Collection #
06-37 
Other Collectors
 
Date Collected
8 Sep 2006 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
San Juan 
Locality
San Juan Islands. Low Island. 
Elevation
0-3 ft. 
Coordinates
48° 35.354' N, 123° 1.553' W 
Site Description
Very low rock and gravel island. Lots of Elymus mollis. 
Specimen Notes
Occasional in rock crevices close to shore. 
Phenology
Fruits 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Polygonaceae
80. Polygonum aviculare L.
U.S.A., Washington, San Juan County:
San Juan Islands. Pole Island. Tiny island in the middle of Mosquito Pass.
Elev. 0-3 ft. 48° 36.056' N, 123° 10.096' W.
Island is 0.21 acres, measured with GPS. A few plants in upper beach on west side of island. Phenology: Fruits. Origin: Introduced.
WTU 395050
Tara Martin 06-21    7 Sep 2006
80. Polygonum aviculare L.
Database ID
154278 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
395050 
Barcode
 
Other Numbers
 
Family
Polygonaceae 
Name on Specimen
Polygonum aviculare L. 
Accepted Name
Polygonum aviculare L. 
Annotation History
1. Polygonum aviculare L.
    Annotated by David Giblin, 24 2006. Sources: FNA.  
Type Notes
 
Collector
Tara Martin 
Collection #
06-21 
Other Collectors
 
Date Collected
7 Sep 2006 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
San Juan 
Locality
San Juan Islands. Pole Island. Tiny island in the middle of Mosquito Pass. 
Elevation
0-3 ft. 
Coordinates
48° 36.056' N, 123° 10.096' W 
Site Description
Island is 0.21 acres, measured with GPS. 
Specimen Notes
A few plants in upper beach on west side of island. 
Phenology
Fruits 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Polygonaceae
81. Polygonum aviculare L.
U.S.A., Washington, San Juan County:
San Juan Islands. Long Island National Wildlife Refuge. Unnamed Island #1, off the south shore of Long Island.
Elev. 6-16 ft. 48° 26.38' N, 122° 55.103' W. Coordinate Source: GPS.
Smallest unnamed island by Long Island, connected by a gravel bar at low tide; 0.76 acres (measured with GPS). Occasional in rock crevices. Phenology: Fertile. Origin: Introduced.
WTU 389295
Tara Martin 06-04    6 Sep 2006
81. Polygonum aviculare L.
Database ID
154590 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
389295 
Barcode
 
Other Numbers
 
Family
Polygonaceae 
Name on Specimen
Polygonum aviculare L. 
Accepted Name
Polygonum aviculare L. 
Annotation History
1. Polygonum aviculare L.
    Annotated by David Giblin, 31 2007. Sources: FNA.  
Type Notes
 
Collector
Tara Martin 
Collection #
06-04 
Other Collectors
 
Date Collected
6 Sep 2006 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
San Juan 
Locality
San Juan Islands. Long Island National Wildlife Refuge. Unnamed Island #1, off the south shore of Long Island. 
Elevation
6-16 ft. 
Coordinates
48° 26.38' N, 122° 55.103' W 
Site Description
Smallest unnamed island by Long Island, connected by a gravel bar at low tide; 0.76 acres (measured with GPS). 
Specimen Notes
Occasional in rock crevices. 
Phenology
Fertile 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Polygonaceae
82. Polygonum aviculare L. ssp. depressum (Meisner) Arcangeli
U.S.A., Washington, Wahkiakum County:
Rock east shore of Grays Bay, Columbia River. At Pigeon Bluff, below Altoona-Pillar Rock Road.
Elev. 6 ft. 46° 16.5' N, 123° 40.7' W; T9N R8W S9.
Damp mowed meadow, low ground. Prostrate, dry roadside weed. Phenology: Flowers & Fruits. Origin: Introduced.
WTU 370892
Peter F. Zika 22299    30 Aug 2005
with David Giblin, Cathy Maxwell, Ben Legler
82. Polygonum aviculare L. ssp. depressum (Meisner) Arcangeli
Database ID
154934 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
370892 
Barcode
 
Other Numbers
 
Family
Polygonaceae 
Name on Specimen
Polygonum aviculare L. ssp. depressum (Meisner) Arcangeli 
Accepted Name
Polygonum aviculare L. ssp. depressum (Meisn.) Arcang. 
Annotation History
1. Polygonum aviculare L. ssp. depressum (Meisner) Arcangeli.
    Annotated by P. F. Zika, 2005. Sources: FNA.  
Type Notes
 
Collector
Peter F. Zika 
Collection #
22299 
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
Rock east shore of Grays Bay, Columbia River. At Pigeon Bluff, below Altoona-Pillar Rock Road. 
Elevation
6 ft. 
Coordinates
46° 16.5' N, 123° 40.7' W; T9N R8W S9 
Site Description
Damp mowed meadow, low ground. 
Specimen Notes
Prostrate, dry roadside weed. 
Phenology
Flowers & Fruits 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Polygonaceae
83. Polygonum aviculare L. ssp. depressum (Meisner) Arcangeli
U.S.A., Washington, Clark County:
South shore of Vancouver Lake, at Washington Department of Fish and Wildlife boat launch.
Elev. 20 ft. 45° 39.812' N, 122° 43.047' W.
Sandy substrate, gentle slope, seasonally inundated beach with Salix, Phalaris, Juncus, and Lilaeopsis. Prostrate weed in gravel; tepals white on edge, green center. Phenology: Flowers & Fruits. Origin: Introduced.
WTU 370851
Ben Legler 3065    21 Sep 2005
with David Giblin
83. Polygonum aviculare L. ssp. depressum (Meisner) Arcangeli
Database ID
154948 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
370851 
Barcode
 
Other Numbers
 
Family
Polygonaceae 
Name on Specimen
Polygonum aviculare L. ssp. depressum (Meisner) Arcangeli 
Accepted Name
Polygonum aviculare L. ssp. depressum (Meisn.) Arcang. 
Annotation History
1. Polygonum aviculare L. ssp. depressum (Meisner) Arcangeli.
    Annotated by B. Legler, 2005. Sources: FNA.  
Type Notes
 
Collector
Ben Legler 
Collection #
3065 
Other Collectors
David Giblin 
Date Collected
21 Sep 2005 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Clark 
Locality
South shore of Vancouver Lake, at Washington Department of Fish and Wildlife boat launch. 
Elevation
20 ft. 
Coordinates
45° 39.812' N, 122° 43.047' W 
Site Description
Sandy substrate, gentle slope, seasonally inundated beach with Salix, Phalaris, Juncus, and Lilaeopsis. 
Specimen Notes
Prostrate weed in gravel; tepals white on edge, green center. 
Phenology
Flowers & Fruits 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Polygonaceae
84. Polygonum aviculare L. ssp. aviculare
U.S.A., Washington, Kittitas County:
Barn lot at 15021 North Thorp Highway.
Elev. 1680 ft. 47° 5.908' N, 120° 41.898' W; T19N R17E S34.
Common; level, sandy soil with rocks. Other plants: Prunus virginiana, Amelanchier alnifolia, Populus tremuloides, Pinus ponderosa. Flowers white. Phenology: Flowers & Fruits. Origin: Introduced.
WTU 365297
Don Knoke 919    31 Jul 2005
84. Polygonum aviculare L. ssp. aviculare
Database ID
157309 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
365297 
Barcode
 
Other Numbers
 
Family
Polygonaceae 
Name on Specimen
Polygonum aviculare L. ssp. aviculare  
Accepted Name
Polygonum aviculare L. ssp. aviculare  
Annotation History
1. Polygonum aviculare L.
2. Polygonum aviculare L. ssp. aviculare.
    Annotated by Ben Legler, 2015.  
Type Notes
 
Collector
Don Knoke 
Collection #
919 
Other Collectors
 
Date Collected
31 Jul 2005 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Kittitas 
Locality
Barn lot at 15021 North Thorp Highway. 
Elevation
1680 ft. 
Coordinates
47° 5.908' N, 120° 41.898' W; T19N R17E S34 
Site Description
Common; level, sandy soil with rocks. Other plants: Prunus virginiana, Amelanchier alnifolia, Populus tremuloides, Pinus ponderosa. 
Specimen Notes
Flowers white. 
Phenology
Flowers & Fruits 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Polygonaceae
85. Polygonum aviculare L.
U.S.A., Washington, San Juan County:
Castle Island. Base of cliff at northeast corner of island.
48.421° N, 122.823° W. Datum: WGS 84. Coordinate Source: Digital map.
A small group of plants on exposed bedrock outcrop. Phenology: Flowers & Fruits. Origin: Introduced.
WTU 375582
Barbara French 07-26    21 Sep 2007
with David Giblin, Megan A. Jensen, Peter Dunwiddie, Ted Thomas, Phil Green
85. Polygonum aviculare L.
Database ID
158700 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
375582 
Barcode
 
Other Numbers
 
Family
Polygonaceae 
Name on Specimen
Polygonum aviculare L. 
Accepted Name
Polygonum aviculare L. 
Annotation History
1. Polygonum aviculare L.
    Annotated by David Giblin, 15 2007. Sources: FNA.  
Type Notes
 
Collector
Barbara French 
Collection #
07-26 
Other Collectors
David Giblin, Megan A. Jensen, Peter Dunwiddie, Ted Thomas, Phil Green 
Date Collected
21 Sep 2007 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
San Juan 
Locality
Castle Island. Base of cliff at northeast corner of island. 
Elevation
 
Coordinates
48.421° N, 122.823° W 
Site Description
 
Specimen Notes
A small group of plants on exposed bedrock outcrop. 
Phenology
Flowers & Fruits 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Polygonaceae
86. Polygonum aviculare L. ssp. buxiforme (Small) Costea & Tardif
U.S.A., Washington, San Juan County:
San Juan Islands National Wildlife Refuge. Colville Island.
48.415278°, -122.82397°. Datum: WGS 84. Coordinate uncertainty: 500 meters. Georeferenced by WTU Staff. Coordinate Source: GeoLocate.
Scattered on rocky outcrops near shore. Phenology: Flowers & Fruits. Origin: Introduced.
WTU 375539
Ted Thomas 07-47    21 Sep 2007
with Peter Dunwiddie, David Giblin, Megan Jensen, Phil Green, Barbara French
86. Polygonum aviculare L. ssp. buxiforme (Small) Costea & Tardif
Database ID
158717 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
375539 
Barcode
 
Other Numbers
 
Family
Polygonaceae 
Name on Specimen
Polygonum aviculare L. ssp. buxiforme (Small) Costea & Tardif 
Accepted Name
Polygonum aviculare L. ssp. buxiforme (Small) Costea & Tardif 
Annotation History
1. Polygonum aviculare L.
    Annotated by David Giblin, 15 2007. Sources: FNA.
2. Polygonum aviculare L. ssp. buxiforme (Small) Costea & Tardif.
    Annotated by Ben Legler, 5 2015.  
Type Notes
 
Collector
Ted Thomas 
Collection #
07-47 
Other Collectors
Peter Dunwiddie, David Giblin, Megan Jensen, Phil Green, Barbara French 
Date Collected
21 Sep 2007 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
San Juan 
Locality
San Juan Islands National Wildlife Refuge. Colville Island. 
Elevation
 
Coordinates
48.415278°, -122.82397° 
Site Description
 
Specimen Notes
Scattered on rocky outcrops near shore. 
Phenology
Flowers & Fruits 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Polygonaceae
87. Polygonum aviculare L. ssp. buxiforme (Small) Costea & Tardif
U.S.A., Washington, Lincoln County:
Downtown Sprague.
Elev. 1869 ft. T21N R38E S23. Datum: WGS 84. Coordinate uncertainty: 500 meters. Georeferenced by WTU Staff. Coordinate Source: GeoLocate.
Dry disturbed ground near grain elevators, with Erodium, Lactuca, Malva, Bromus. Prostrate common seed in waste ground. Seeds removed for study at University of Washington by Kristen Richardson, date: 18 Aug 2009. Phenology: Flowers. Origin: Introduced.
WTU 368261
Peter F. Zika 19974    14 Aug 2004
87. Polygonum aviculare L. ssp. buxiforme (Small) Costea & Tardif
Database ID
165981 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
368261 
Barcode
 
Other Numbers
 
Family
Polygonaceae 
Name on Specimen
Polygonum aviculare L. ssp. buxiforme (Small) Costea & Tardif 
Accepted Name
Polygonum aviculare L. ssp. buxiforme (Small) Costea & Tardif 
Annotation History
1. Polygonum aviculare L. ssp. neglectum (Besser) Arcangeli.
2. Polygonum aviculare L. ssp. buxiforme (Small) Costea & Tardif.
    Annotated by Ben Legler, 5 2015.  
Type Notes
 
Collector
Peter F. Zika 
Collection #
19974 
Other Collectors
 
Date Collected
14 Aug 2004 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Lincoln 
Locality
Downtown Sprague. 
Elevation
1869 ft. 
Coordinates
T21N R38E S23 
Site Description
Dry disturbed ground near grain elevators, with Erodium, Lactuca, Malva, Bromus. 
Specimen Notes
Prostrate common seed in waste ground. Seeds removed for study at University of Washington by Kristen Richardson, date: 18 Aug 2009. 
Phenology
Flowers 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Polygonaceae
88. Polygonum aviculare L.
U.S.A., Washington, Chelan County:
22 miles north of Ellensburg. At end of Tronson Meadow Road off US 97.
T21N R18E S11 NW 1/4. Datum: WGS84. Coordinate uncertainty: 800 meters. Georeferenced by WTU Staff. Coordinate Source: GeoLocate.
Compacted gravelly soil in parking area at trailhead. [Located in teaching collection]. Phenology: Flowers & Fruits. Origin: Introduced.
WTU 332025; Barcode: WTU-V-006609
M. Arnot 756    11 Sep 1995
88. Polygonum aviculare L.
Database ID
166402 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
332025 
Barcode
WTU-V-006609 
Other Numbers
 
Family
Polygonaceae 
Name on Specimen
Polygonum aviculare L. 
Accepted Name
Polygonum aviculare L. 
Annotation History
1. Polygonum aviculare L.  
Type Notes
 
Collector
M. Arnot 
Collection #
756 
Other Collectors
 
Date Collected
11 Sep 1995 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Chelan 
Locality
22 miles north of Ellensburg. At end of Tronson Meadow Road off US 97. 
Elevation
 
Coordinates
T21N R18E S11 NW 1/4 
Site Description
Compacted gravelly soil in parking area at trailhead. 
Specimen Notes
[Located in teaching collection]. 
Phenology
Flowers & Fruits 
Origin
Introduced 
Cultivated?
No 
Imaged?
Yes 

Polygonaceae
89. Polygonum aviculare L.
Canada, British Columbia
Vancouver Island, Shawnigan Lake.
48° 37' N, 123° 38' W.
Royal British Columbia Museum Accession Number 184603. Phenology: Flowers. Origin: Introduced.
WTU 371122
Adolf Ceska s.n.    13 Aug 1970
89. Polygonum aviculare L.
Database ID
169204 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
371122 
Barcode
 
Other Numbers
 
Family
Polygonaceae 
Name on Specimen
Polygonum aviculare L. 
Accepted Name
Polygonum aviculare L. 
Annotation History
1. Polygonum aviculare L.  
Type Notes
 
Collector
Adolf Ceska 
Collection #
s.n. 
Other Collectors
 
Date Collected
13 Aug 1970 
Verbatim Date
 
Country
Canada 
State or Province
British Columbia 
County
 
Locality
Vancouver Island, Shawnigan Lake. 
Elevation
 
Coordinates
48° 37' N, 123° 38' W 
Site Description
 
Specimen Notes
Royal British Columbia Museum Accession Number 184603. 
Phenology
Flowers 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Polygonaceae
90. Polygonum aviculare L. ssp. neglectum (Besser) Arcangeli
U.S.A., Washington, San Juan County:
San Juan Islands. Unnamed island just west of Broken Point, perhaps 200 meters from Shaw Island. Reported to be shallow enough to walk to at low tide. [Referred to as Broken Point Island.]
Elev. 25 ft. 48° 35.539' N, 122° 58.206' W.
Open, grassy island with scattered Juniperus scopulorum, a few Quercus; Camassia leichtlinii abundant, with Allium acuminatum, Clarkia amoena var. caurina, Rosa, and Symphoricarpos. Local on bedrock. Phenology: Flowers & Fruits. Origin: Introduced.
WTU 393028
David Giblin 2534    24 Sep 2008
90. Polygonum aviculare L. ssp. neglectum (Besser) Arcangeli
Database ID
171446 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
393028 
Barcode
 
Other Numbers
 
Family
Polygonaceae 
Name on Specimen
Polygonum aviculare L. ssp. neglectum (Besser) Arcangeli 
Accepted Name
Polygonum aviculare L. ssp. neglectum (Besser) Arcang. 
Annotation History
1. Polygonum aviculare L. ssp. neglectum (Besser) Arcangeli.
    Annotated by David Giblin, 5 2009. Sources: FNA.  
Type Notes
 
Collector
David Giblin 
Collection #
2534 
Other Collectors
 
Date Collected
24 Sep 2008 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
San Juan 
Locality
San Juan Islands. Unnamed island just west of Broken Point, perhaps 200 meters from Shaw Island. Reported to be shallow enough to walk to at low tide. [Referred to as Broken Point Island.] 
Elevation
25 ft. 
Coordinates
48° 35.539' N, 122° 58.206' W 
Site Description
Open, grassy island with scattered Juniperus scopulorum, a few Quercus; Camassia leichtlinii abundant, with Allium acuminatum, Clarkia amoena var. caurina, Rosa, and Symphoricarpos. 
Specimen Notes
Local on bedrock. 
Phenology
Flowers & Fruits 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Polygonaceae
91. Polygonum aviculare L. ssp. buxiforme (Small) Costea & Tardif
U.S.A., Washington, San Juan County:
San Juan Islands National Wildlife Refuge and Wilderness Area. Massacre Bay. Island #1.
Elev. 0-8 ft. 48° 38.396' N, 122° 59.38' W. Datum: WGS 84.
Very small bedrock island close in to shore, just west of Skull Island, in Massacre Bay. Dominated by Allium cernuum, Festuca rubra, Sedum lanceolatum, and Grindelia; (0.05 acres measured). Occasional on bedrock. Phenology: Flowers & Fruits. Origin: Introduced.
WTU 395038
Jim Kling 08-03    24 Sep 2008
91. Polygonum aviculare L. ssp. buxiforme (Small) Costea & Tardif
Database ID
171515 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
395038 
Barcode
 
Other Numbers
 
Family
Polygonaceae 
Name on Specimen
Polygonum aviculare L. ssp. buxiforme (Small) Costea & Tardif 
Accepted Name
Polygonum aviculare L. ssp. buxiforme (Small) Costea & Tardif 
Annotation History
1. Polygonum aviculare L. ssp. neglectum (Besser) Arcangeli.
    Annotated by David Giblin, 5 2009. Sources: FNA.
2. Polygonum aviculare L. ssp. buxiforme (Small) Costea & Tardif.
    Annotated by Ben Legler, 5 2015.  
Type Notes
 
Collector
Jim Kling 
Collection #
08-03 
Other Collectors
 
Date Collected
24 Sep 2008 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
San Juan 
Locality
San Juan Islands National Wildlife Refuge and Wilderness Area. Massacre Bay. Island #1. 
Elevation
0-8 ft. 
Coordinates
48° 38.396' N, 122° 59.38' W 
Site Description
Very small bedrock island close in to shore, just west of Skull Island, in Massacre Bay. Dominated by Allium cernuum, Festuca rubra, Sedum lanceolatum, and Grindelia; (0.05 acres measured). 
Specimen Notes
Occasional on bedrock. 
Phenology
Flowers & Fruits 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Polygonaceae
92. Polygonum aviculare L.
U.S.A., Washington, Kittitas County:
Along FR 3100 at trailhead of Taneum Lake Trail.
Elev. 5420 ft. 47° 30.73' N, 121° 1.789' W; T18N R14E S12. Datum: WGS 84.
Dry, deep soil; gentle slope. Other plants: Abies lasiocarpa, Ribes viscosissimum, Pachistima myrsinites. Flowers white; uncommon. Phenology: Flowers. Origin: Introduced.
WTU 373873
Don Knoke 1675    18 Aug 2008
92. Polygonum aviculare L.
Database ID
171528 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
373873 
Barcode
 
Other Numbers
 
Family
Polygonaceae 
Name on Specimen
Polygonum aviculare L. 
Accepted Name
Polygonum aviculare L. 
Annotation History
1. Polygonum aviculare L.
    Annotated by Don Knoke.  
Type Notes
 
Collector
Don Knoke 
Collection #
1675 
Other Collectors
 
Date Collected
18 Aug 2008 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Kittitas 
Locality
Along FR 3100 at trailhead of Taneum Lake Trail. 
Elevation
5420 ft. 
Coordinates
47° 30.73' N, 121° 1.789' W; T18N R14E S12 
Site Description
Dry, deep soil; gentle slope. Other plants: Abies lasiocarpa, Ribes viscosissimum, Pachistima myrsinites. 
Specimen Notes
Flowers white; uncommon. 
Phenology
Flowers 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Polygonaceae
93. Polygonum aviculare L. ssp. neglectum (Besser) Arcangeli
U.S.A., Washington, San Juan County:
San Juan Islands National Wildlife Refuge and Wilderness Area. Skull Island.
Elev. 40 ft. 48° 38.343' N, 122° 59.168' W. Datum: WGS 84. Coordinate Source: GPS.
A 40 foot high island with many Juniperus trees, abundant Camassia leichtlinii and Plectritis congesta. Numerous bedrock outcrops with ledges. Frequent on open bedrock pockets. Phenology: Flowers & Fruits. Origin: Introduced.
WTU 392875
Steve Hahn 08-54    24 Sep 2008
93. Polygonum aviculare L. ssp. neglectum (Besser) Arcangeli
Database ID
171695 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
392875 
Barcode
 
Other Numbers
 
Family
Polygonaceae 
Name on Specimen
Polygonum aviculare L. ssp. neglectum (Besser) Arcangeli 
Accepted Name
Polygonum aviculare L. ssp. neglectum (Besser) Arcang. 
Annotation History
1. Polygonum aviculare L. ssp. neglectum (Besser) Arcangeli.
    Annotated by David Giblin, 5 2009. Sources: FNA.  
Type Notes
 
Collector
Steve Hahn 
Collection #
08-54 
Other Collectors
 
Date Collected
24 Sep 2008 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
San Juan 
Locality
San Juan Islands National Wildlife Refuge and Wilderness Area. Skull Island. 
Elevation
40 ft. 
Coordinates
48° 38.343' N, 122° 59.168' W 
Site Description
A 40 foot high island with many Juniperus trees, abundant Camassia leichtlinii and Plectritis congesta. Numerous bedrock outcrops with ledges. 
Specimen Notes
Frequent on open bedrock pockets. 
Phenology
Flowers & Fruits 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Polygonaceae
94. Polygonum aviculare L. ssp. buxiforme (Small) Costea & Tardif
U.S.A., Washington, San Juan County:
San Juan Islands National Wildlife Refuge and Wilderness Area. Secar Rock.
Elev. 20 ft. 48° 26' 15" N, 122° 54' 23" W.
Barely vegetated, 0.9 acre island. Dominated by orange colonial lichen. Vegetation limited to protected depressions and cracks in rock substrate. Occasional, in patches. Phenology: Flowers & Fruits. Origin: Introduced.
WTU 399080; Barcode: WTU-V-005512
Brianne Cohen 09-110    25 Sep 2009
94. Polygonum aviculare L. ssp. buxiforme (Small) Costea & Tardif
Database ID
173548 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
399080 
Barcode
WTU-V-005512 
Other Numbers
 
Family
Polygonaceae 
Name on Specimen
Polygonum aviculare L. ssp. buxiforme (Small) Costea & Tardif 
Accepted Name
Polygonum aviculare L. ssp. buxiforme (Small) Costea & Tardif 
Annotation History
1. Polygonum aviculare L.
    Annotated by David Giblin, 3 2009. Sources: FNA.
2. Polygonum aviculare L. ssp. buxiforme (Small) Costea & Tardif.
    Annotated by Ben Legler, 5 2015.  
Type Notes
 
Collector
Brianne Cohen 
Collection #
09-110 
Other Collectors
 
Date Collected
25 Sep 2009 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
San Juan 
Locality
San Juan Islands National Wildlife Refuge and Wilderness Area. Secar Rock. 
Elevation
20 ft. 
Coordinates
48° 26' 15" N, 122° 54' 23" W 
Site Description
Barely vegetated, 0.9 acre island. Dominated by orange colonial lichen. Vegetation limited to protected depressions and cracks in rock substrate. 
Specimen Notes
Occasional, in patches. 
Phenology
Flowers & Fruits 
Origin
Introduced 
Cultivated?
No 
Imaged?
Yes 

Polygonaceae
95. Polygonum aviculare L.
U.S.A., Washington, San Juan County:
San Juan Islands. Flattop Island. Weed Point on northeast end of Flattop Island; northern part of San Juan Archipelago.
Elev. 10 ft. 48° 38.871' N, 123° 4.707' W. Datum: WGS 84. Coordinate uncertainty: 2 meters.
Rocky open point, treeless, with thin soil, with Rosa nutkana, Grindelia, Lathyrus japonicus, grasses. On open rocky patches. Phenology: Flowers & Fruits. Origin: Introduced.
WTU 398331
Peter Dunwiddie 09-87    23 Sep 2009
95. Polygonum aviculare L.
Database ID
173660 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
398331 
Barcode
 
Other Numbers
 
Family
Polygonaceae 
Name on Specimen
Polygonum aviculare L. 
Accepted Name
Polygonum aviculare L. 
Annotation History
1. Polygonum aviculare L.
    Annotated by David Giblin, 3 2009. Sources: FNA.  
Type Notes
 
Collector
Peter Dunwiddie 
Collection #
09-87 
Other Collectors
 
Date Collected
23 Sep 2009 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
San Juan 
Locality
San Juan Islands. Flattop Island. Weed Point on northeast end of Flattop Island; northern part of San Juan Archipelago. 
Elevation
10 ft. 
Coordinates
48° 38.871' N, 123° 4.707' W 
Site Description
Rocky open point, treeless, with thin soil, with Rosa nutkana, Grindelia, Lathyrus japonicus, grasses. 
Specimen Notes
On open rocky patches. 
Phenology
Flowers & Fruits 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Polygonaceae
96. Polygonum aviculare L.
U.S.A., Washington, San Juan County:
Ewing Island. Long, narrow island off northeast end of Sucia Island. Steep sandstone ridges run length of island.
Elev. 39 ft. 48.76455° N, 122.88093° W. Datum: WGS 84. Coordinate Source: Digital map.
Mostly forested with PSME, ARME, and JUMA. Grassy balds along south shore and at east end of island. Several patches in dry open ground, east end of Ewing Island. Phenology: Flowers & Fruits. Origin: Introduced.
WTU 403591; Barcode: WTU-V-012895
Peter Dunwiddie 09-119    24 Sep 2009
96. Polygonum aviculare L.
Database ID
173695 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
403591 
Barcode
WTU-V-012895 
Other Numbers
 
Family
Polygonaceae 
Name on Specimen
Polygonum aviculare L. 
Accepted Name
Polygonum aviculare L. 
Annotation History
1. Polygonum aviculare L.
    Annotated by David Giblin, 3 2009. Sources: FNA.  
Type Notes
 
Collector
Peter Dunwiddie 
Collection #
09-119 
Other Collectors
 
Date Collected
24 Sep 2009 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
San Juan 
Locality
Ewing Island. Long, narrow island off northeast end of Sucia Island. Steep sandstone ridges run length of island. 
Elevation
39 ft. 
Coordinates
48.76455° N, 122.88093° W 
Site Description
Mostly forested with PSME, ARME, and JUMA. Grassy balds along south shore and at east end of island. 
Specimen Notes
Several patches in dry open ground, east end of Ewing Island. 
Phenology
Flowers & Fruits 
Origin
Introduced 
Cultivated?
No 
Imaged?
Yes 

Polygonaceae
97. Polygonum aviculare L.
U.S.A., Washington, San Juan County:
San Juan Islands. Yellow Island.
48° 35' 32" N, 123° 1' 55" W.
A group of plants on rock knob next to Breezy Point, with Atriplex prostrata. Phenology: Flowers & Fruits. Origin: Introduced.
WTU 403596; Barcode: WTU-V-012892
Peter Dunwiddie 09-132    24 Sep 2009
97. Polygonum aviculare L.
Database ID
173701 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
403596 
Barcode
WTU-V-012892 
Other Numbers
 
Family
Polygonaceae 
Name on Specimen
Polygonum aviculare L. 
Accepted Name
Polygonum aviculare L. 
Annotation History
1. Polygonum aviculare L.
    Annotated by David Giblin, 3 2009. Sources: FNA.  
Type Notes
 
Collector
Peter Dunwiddie 
Collection #
09-132 
Other Collectors
 
Date Collected
24 Sep 2009 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
San Juan 
Locality
San Juan Islands. Yellow Island. 
Elevation
 
Coordinates
48° 35' 32" N, 123° 1' 55" W 
Site Description
 
Specimen Notes
A group of plants on rock knob next to Breezy Point, with Atriplex prostrata. 
Phenology
Flowers & Fruits 
Origin
Introduced 
Cultivated?
No 
Imaged?
Yes 

Polygonaceae
98. Polygonum aviculare L. ssp. buxiforme (Small) Costea & Tardif
U.S.A., Washington, San Juan County:
San Juan Islands. Cemetery Island.
Elev. 20 ft. 48.66418°, -123.17473°. Datum: WGS 84. Coordinate uncertainty: 500 meters. Georeferenced by WTU Staff. Coordinate Source: GeoLocate.
Very small bedrock conglomerate island with small stand of oaks at summit. Bedrock is sandstone and conglomerate. Oaks are 2-3 meters tall. Island is heavily grazed and impacted by geese and otter; grasses difficult to find ungrazed; 0.34221 acres. Prostrate or ascending, flowers white, to 3.5 centimeters, common, with Grindelia on bedrock. Phenology: Flowers & Fruits. Origin: Introduced.
WTU 398216
Jeff Walker 412    23 Sep 2009
98. Polygonum aviculare L. ssp. buxiforme (Small) Costea & Tardif
Database ID
173727 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
398216 
Barcode
 
Other Numbers
 
Family
Polygonaceae 
Name on Specimen
Polygonum aviculare L. ssp. buxiforme (Small) Costea & Tardif 
Accepted Name
Polygonum aviculare L. ssp. buxiforme (Small) Costea & Tardif 
Annotation History
1. Polygonum aviculare L.
    Annotated by David Giblin, 3 2009. Sources: FNA.
2. Polygonum aviculare L. ssp. buxiforme (Small) Costea & Tardif.
    Annotated by Ben Legler, 5 2015.  
Type Notes
 
Collector
Jeff Walker 
Collection #
412 
Other Collectors
 
Date Collected
23 Sep 2009 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
San Juan 
Locality
San Juan Islands. Cemetery Island. 
Elevation
20 ft. 
Coordinates
48.66418°, -123.17473° 
Site Description
Very small bedrock conglomerate island with small stand of oaks at summit. Bedrock is sandstone and conglomerate. Oaks are 2-3 meters tall. Island is heavily grazed and impacted by geese and otter; grasses difficult to find ungrazed; 0.34221 acres. 
Specimen Notes
Prostrate or ascending, flowers white, to 3.5 centimeters, common, with Grindelia on bedrock. 
Phenology
Flowers & Fruits 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Polygonaceae
99. Polygonum aviculare L. ssp. buxiforme (Small) Costea & Tardif
U.S.A., Washington, San Juan County:
San Juan Islands National Wildlife Refuge and Wilderness Area. Buck Island. Southwest edge of Lopez Island, with frequent rock outcroppings on top.
Elev. 9-39 ft. 48° 27.146' N, 122° 55.194' W. Datum: WGS 84. Coordinate Source: GPS.
Flat-topped meadow dominated by Rosa, Festuca, Grindelia, Elymus, and Holcus. Vegetation compacted in many areas from animal activities. Frequent across dirt. Phenology: Flowers & Fruits. Origin: Introduced.
WTU 398307
Jeff Walker 433    25 Sep 2009
99. Polygonum aviculare L. ssp. buxiforme (Small) Costea & Tardif
Database ID
173740 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
398307 
Barcode
 
Other Numbers
 
Family
Polygonaceae 
Name on Specimen
Polygonum aviculare L. ssp. buxiforme (Small) Costea & Tardif 
Accepted Name
Polygonum aviculare L. ssp. buxiforme (Small) Costea & Tardif 
Annotation History
1. Polygonum aviculare L.
    Annotated by David Giblin, 3 2009. Sources: FNA.
2. Polygonum aviculare L. ssp. buxiforme (Small) Costea & Tardif.
    Annotated by Ben Legler, 5 2015.  
Type Notes
 
Collector
Jeff Walker 
Collection #
433 
Other Collectors
 
Date Collected
25 Sep 2009 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
San Juan 
Locality
San Juan Islands National Wildlife Refuge and Wilderness Area. Buck Island. Southwest edge of Lopez Island, with frequent rock outcroppings on top. 
Elevation
9-39 ft. 
Coordinates
48° 27.146' N, 122° 55.194' W 
Site Description
Flat-topped meadow dominated by Rosa, Festuca, Grindelia, Elymus, and Holcus. Vegetation compacted in many areas from animal activities. 
Specimen Notes
Frequent across dirt. 
Phenology
Flowers & Fruits 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Polygonaceae
100. Polygonum aviculare L.
U.S.A., Washington, San Juan County:
San Juan Islands. Shag Reef. Low rock south of Little Cactus.
Elev. 3 ft. 48.65462° N, 123.14684° W. Datum: WGS 84. Coordinate Source: Digital map.
Small sparsely vegetated island. Several small patches in pockets of bedrock. Phenology: Flowers & Fruits. Origin: Introduced.
WTU 398269
Phil Green 09-81    23 Sep 2009
100. Polygonum aviculare L.
Database ID
173784 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
398269 
Barcode
 
Other Numbers
 
Family
Polygonaceae 
Name on Specimen
Polygonum aviculare L. 
Accepted Name
Polygonum aviculare L. 
Annotation History
1. Polygonum aviculare L.
    Annotated by David Giblin, 3 2009. Sources: FNA.  
Type Notes
 
Collector
Phil Green 
Collection #
09-81 
Other Collectors
 
Date Collected
23 Sep 2009 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
San Juan 
Locality
San Juan Islands. Shag Reef. Low rock south of Little Cactus. 
Elevation
3 ft. 
Coordinates
48.65462° N, 123.14684° W 
Site Description
Small sparsely vegetated island. 
Specimen Notes
Several small patches in pockets of bedrock. 
Phenology
Flowers & Fruits 
Origin
Introduced 
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.