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Field Descriptions
40 matching records found.
Label Query: Genus = "Lactuca", Species = "serriola"
Asteraceae
1. Lactuca serriola L.
U.S.A., Washington, Klickitat County:
Bingen.
45.71495°, -121.46462°. Datum: WGS 84. Coordinate uncertainty: 500 meters. Georeferenced by WTU Staff. Coordinate Source: GeoLocate.
Railroad embankment. Phenology: Fruits. Origin: Introduced.
WTU 227671
Wilhelm N. Suksdorf 7695    25 Aug 1903
1. Lactuca serriola L.
Database ID
18704 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
227671 
Barcode
 
Other Numbers
 
Family
Asteraceae 
Name on Specimen
Lactuca serriola L. 
Accepted Name
Lactuca serriola L. 
Annotation History
1. Lactuca serriola L.  
Type Notes
 
Collector
Wilhelm N. Suksdorf 
Collection #
7695 
Other Collectors
 
Date Collected
25 Aug 1903 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Klickitat 
Locality
Bingen. 
Elevation
 
Coordinates
45.71495°, -121.46462° 
Site Description
Railroad embankment. 
Specimen Notes
 
Phenology
Fruits 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Asteraceae
2. Lactuca serriola L.
U.S.A., Washington, King County:
Seattle: Magnusson Park.
47.60639°, -122.33083°. Datum: WGS 84. Coordinate uncertainty: 10000 meters. Georeferenced by WTU Staff. Coordinate Source: GeoLocate.
Disturbed open ground, piled dredgings. Wild lettuce. Plants from 1.5 to 2 m; heads yellow. Phenology: Flowers & Fruits. Origin: Introduced.
WTU 328313
T. F. Johnson 187    27 Jul 1987
2. Lactuca serriola L.
Database ID
18705 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
328313 
Barcode
 
Other Numbers
 
Family
Asteraceae 
Name on Specimen
Lactuca serriola L. 
Accepted Name
Lactuca serriola L. 
Annotation History
1. Lactuca serriola L.  
Type Notes
 
Collector
T. F. Johnson 
Collection #
187 
Other Collectors
 
Date Collected
27 Jul 1987 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
King 
Locality
Seattle: Magnusson Park. 
Elevation
 
Coordinates
47.60639°, -122.33083° 
Site Description
Disturbed open ground, piled dredgings. 
Specimen Notes
Wild lettuce. Plants from 1.5 to 2 m; heads yellow. 
Phenology
Flowers & Fruits 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Asteraceae
3. Lactuca serriola L.
U.S.A., Washington, San Juan County:
Friday Harbor. Along road running along south edge of ferry landing.
48.53528°, -123.00528°. Datum: WGS 84. Coordinate uncertainty: 10000 meters. Georeferenced by WTU Staff. Coordinate Source: GeoLocate.
Open, hard-packed waste soils. Abundant. Phenology: Flowers & Fruits. Origin: Introduced.
WTU 325112
Scott R. Atkinson 491    15 Aug 1992
3. Lactuca serriola L.
Database ID
18706 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
325112 
Barcode
 
Other Numbers
 
Family
Asteraceae 
Name on Specimen
Lactuca serriola L. 
Accepted Name
Lactuca serriola L. 
Annotation History
1. Lactuca serriola L.  
Type Notes
 
Collector
Scott R. Atkinson 
Collection #
491 
Other Collectors
 
Date Collected
15 Aug 1992 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
San Juan 
Locality
Friday Harbor. Along road running along south edge of ferry landing. 
Elevation
 
Coordinates
48.53528°, -123.00528° 
Site Description
Open, hard-packed waste soils. 
Specimen Notes
Abundant. 
Phenology
Flowers & Fruits 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Asteraceae
4. Lactuca serriola L.
U.S.A., Washington, Spokane County:
Spokane.
47.65889°, -117.425°. Datum: WGS 84. Coordinate uncertainty: 1000 meters. Georeferenced by WTU Staff. Coordinate Source: GeoLocate.
Waste ground, unusually stony and sandy. Phenology: Fruits. Origin: Introduced.
WTU 7415
Sister Mary Milburge 829    20 Jul 1933
4. Lactuca serriola L.
Database ID
18707 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
7415 
Barcode
 
Other Numbers
 
Family
Asteraceae 
Name on Specimen
Lactuca serriola L. 
Accepted Name
Lactuca serriola L. 
Annotation History
1. Lactuca serriola L.  
Type Notes
 
Collector
Sister Mary Milburge 
Collection #
829 
Other Collectors
 
Date Collected
20 Jul 1933 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Spokane 
Locality
Spokane. 
Elevation
 
Coordinates
47.65889°, -117.425° 
Site Description
Waste ground, unusually stony and sandy. 
Specimen Notes
 
Phenology
Fruits 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Asteraceae
5. Lactuca serriola L.
U.S.A., Washington, Stevens County:
N slope of Flagstaff Mountain.
Elev. 4000 ft. T39 R39 S5. Datum: WGS 84. Coordinate uncertainty: 1807 meters. Georeferenced by Joseph Stormer. Coordinate Source: Digital Map.
Along edge of road. Phenology: Flowers. Origin: Introduced.
WTU 197360
Monita Engvall 190    24 Jul 1958
5. Lactuca serriola L.
Database ID
18708 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
197360 
Barcode
 
Other Numbers
 
Family
Asteraceae 
Name on Specimen
Lactuca serriola L. 
Accepted Name
Lactuca serriola L. 
Annotation History
1. Lactuca serriola L.  
Type Notes
 
Collector
Monita Engvall 
Collection #
190 
Other Collectors
 
Date Collected
24 Jul 1958 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Stevens 
Locality
N slope of Flagstaff Mountain. 
Elevation
4000 ft. 
Coordinates
T39 R39 S5 
Site Description
Along edge of road. 
Specimen Notes
 
Phenology
Flowers 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Asteraceae
6. Lactuca serriola L.
U.S.A., Washington, Whitman County:
MacMurray Canyon, north of Wawawai Creek.
Elev. 680-800 ft. 46.63139°, -118.05194°. Datum: WGS 84. Coordinate uncertainty: 10000 meters. Georeferenced by WTU Staff. Coordinate Source: GeoLocate.
At edge of creek with Philadelphus, Celtis, grasses. Phenology: Fruits. Origin: Introduced.
WTU 345024
Sarah Gage G&R 581    16 Jul 1992
with Sharon Rodman
6. Lactuca serriola L.
Database ID
18709 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
345024 
Barcode
 
Other Numbers
 
Family
Asteraceae 
Name on Specimen
Lactuca serriola L. 
Accepted Name
Lactuca serriola L. 
Annotation History
1. Lactuca serriola L.  
Type Notes
 
Collector
Sarah Gage 
Collection #
G&R 581 
Other Collectors
Sharon Rodman 
Date Collected
16 Jul 1992 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Whitman 
Locality
MacMurray Canyon, north of Wawawai Creek. 
Elevation
680-800 ft. 
Coordinates
46.63139°, -118.05194° 
Site Description
 
Specimen Notes
At edge of creek with Philadelphus, Celtis, grasses. 
Phenology
Fruits 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Asteraceae
7. Lactuca serriola L.
U.S.A., Washington, Island County:
Whidbey Island, Ebey's Landing Nature Conservancy Preserve; at edge of bluff on beach.
Elev. 3 ft. 48° 11' 42" N, 122° 42' 56" W.
Common along base of slope. Phenology: Fruits. Origin: Introduced.
WTU 357745
Jeff Walker 288    10 Sep 2004
7. Lactuca serriola L.
Database ID
28573 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
357745 
Barcode
 
Other Numbers
 
Family
Asteraceae 
Name on Specimen
Lactuca serriola L. 
Accepted Name
Lactuca serriola L. 
Annotation History
1. Lactuca serriola L.
    Annotated by Ben Legler, 6 2004.  
Type Notes
 
Collector
Jeff Walker 
Collection #
288 
Other Collectors
 
Date Collected
10 Sep 2004 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Island 
Locality
Whidbey Island, Ebey's Landing Nature Conservancy Preserve; at edge of bluff on beach. 
Elevation
3 ft. 
Coordinates
48° 11' 42" N, 122° 42' 56" W 
Site Description
 
Specimen Notes
Common along base of slope. 
Phenology
Fruits 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Asteraceae
8. Lactuca serriola L.
U.S.A., Washington, Kittitas County:
At 15021 North Thorp Highway.
Elev. 1680 ft. 47° 5.908' N, 120° 41.898' W; T19N R17E S34 NW.
In barn lot. Level; sand and rock. Other plants: Populus tremuloides, Rosa woodsii, Clematis lingusticifolia, Symphoricarpos albus. Flowers pale yellow; locally common. Phenology: Flowers. Origin: Introduced.
WTU 357414
Don Knoke 647    2 Aug 2004
8. Lactuca serriola L.
Database ID
150004 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
357414 
Barcode
 
Other Numbers
 
Family
Asteraceae 
Name on Specimen
Lactuca serriola L. 
Accepted Name
Lactuca serriola L. 
Annotation History
1. Lactuca serriola L.  
Type Notes
 
Collector
Don Knoke 
Collection #
647 
Other Collectors
 
Date Collected
2 Aug 2004 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Kittitas 
Locality
At 15021 North Thorp Highway. 
Elevation
1680 ft. 
Coordinates
47° 5.908' N, 120° 41.898' W; T19N R17E S34 NW 
Site Description
In barn lot. Level; sand and rock. Other plants: Populus tremuloides, Rosa woodsii, Clematis lingusticifolia, Symphoricarpos albus. 
Specimen Notes
Flowers pale yellow; locally common. 
Phenology
Flowers 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Asteraceae
9. Lactuca serriola L. var. integrata Gren. & Godr.
     (= Lactuca serriola L.)
U.S.A., Washington, Klickitat County:
Bingen.
45.71495°, -121.46462°. Datum: WGS 84. Coordinate uncertainty: 500 meters. Georeferenced by WTU Staff. Coordinate Source: GeoLocate.
Phenology: Flowers.
WTU 270017
Wilhelm N. Suksdorf 5201    24 Jul 1905
9. Lactuca serriola L. var. integrata Gren. & Godr.
Database ID
150006 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
270017 
Barcode
 
Other Numbers
 
Family
Asteraceae 
Name on Specimen
Lactuca serriola L. var. integrata Gren. & Godr. 
Accepted Name
Lactuca serriola L. 
Annotation History
1. Lactuca serriola L. var. integrata Gren. & Godr.  
Type Notes
 
Collector
Wilhelm N. Suksdorf 
Collection #
5201 
Other Collectors
 
Date Collected
24 Jul 1905 
Verbatim Date
July 24, August 29, 1905 
Country
U.S.A. 
State or Province
Washington 
County
Klickitat 
Locality
Bingen. 
Elevation
 
Coordinates
45.71495°, -121.46462° 
Site Description
 
Specimen Notes
 
Phenology
Flowers 
Origin
 
Cultivated?
No 
Imaged?
No 

Asteraceae
10. Lactuca serriola L. var. integrata Gren. & Godr.
     (= Lactuca serriola L.)
U.S.A., Washington, Klickitat County:
Bingen.
45.71495°, -121.46462°. Datum: WGS 84. Coordinate uncertainty: 500 meters. Georeferenced by WTU Staff. Coordinate Source: GeoLocate.
Phenology: Flowers.
WTU 227764
Wilhelm N. Suksdorf 5201    24 Jul 1905
10. Lactuca serriola L. var. integrata Gren. & Godr.
Database ID
150009 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
227764 
Barcode
 
Other Numbers
 
Family
Asteraceae 
Name on Specimen
Lactuca serriola L. var. integrata Gren. & Godr. 
Accepted Name
Lactuca serriola L. 
Annotation History
1. Lactuca serriola L. var. integrata Gren. & Godr.  
Type Notes
 
Collector
Wilhelm N. Suksdorf 
Collection #
5201 
Other Collectors
 
Date Collected
24 Jul 1905 
Verbatim Date
July 24, August 29, 1905 
Country
U.S.A. 
State or Province
Washington 
County
Klickitat 
Locality
Bingen. 
Elevation
 
Coordinates
45.71495°, -121.46462° 
Site Description
 
Specimen Notes
 
Phenology
Flowers 
Origin
 
Cultivated?
No 
Imaged?
No 

Asteraceae
11. Lactuca serriola L.
U.S.A., Washington, Klickitat County:
Bingen.
45.71495°, -121.46462°. Datum: WGS 84. Coordinate uncertainty: 500 meters. Georeferenced by WTU Staff. Coordinate Source: GeoLocate.
Railroad embankment. Phenology: Flowers. Origin: Introduced.
WTU 272918
Wilhelm N. Suksdorf 7695    25 Aug 1913
11. Lactuca serriola L.
Database ID
150047 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
272918 
Barcode
 
Other Numbers
 
Family
Asteraceae 
Name on Specimen
Lactuca serriola L. 
Accepted Name
Lactuca serriola L. 
Annotation History
1. Lactuca scariola L.
2. Lactuca serriola L.  
Type Notes
 
Collector
Wilhelm N. Suksdorf 
Collection #
7695 
Other Collectors
 
Date Collected
25 Aug 1913 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Klickitat 
Locality
Bingen. 
Elevation
 
Coordinates
45.71495°, -121.46462° 
Site Description
Railroad embankment. 
Specimen Notes
 
Phenology
Flowers 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Asteraceae
12. Lactuca serriola L.
U.S.A., Oregon
Albina, Portland.
Phenology: Flowers. Origin: Introduced.
WTU 227765
Wilhelm N. Suksdorf 1402    25 Jul 1909
12. Lactuca serriola L.
Database ID
150056 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
227765 
Barcode
 
Other Numbers
 
Family
Asteraceae 
Name on Specimen
Lactuca serriola L. 
Accepted Name
Lactuca serriola L. 
Annotation History
1. Lactuca serriola L.  
Type Notes
 
Collector
Wilhelm N. Suksdorf 
Collection #
1402 
Other Collectors
 
Date Collected
25 Jul 1909 
Verbatim Date
 
Country
U.S.A. 
State or Province
Oregon 
County
 
Locality
Albina, Portland. 
Elevation
 
Coordinates
 
Site Description
 
Specimen Notes
 
Phenology
Flowers 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Asteraceae
13. Lactuca serriola L.
U.S.A., Oregon, Grant County:
17 miles southeast of Dayville along Feilds Creek.
Elev. 3300 ft. T14S R28E S1. Datum: NAD 27. Coordinate uncertainty: 805 meters. Georeferenced by Ben Legler. Coordinate Source: TRS2LL.
Steep serpentine slopes. Growing with Stephanomeria tenuifolia, Lunia serpentina, Blepharipappus scaber, Mimulus cusickii. Phenology: Flowers. Origin: Introduced.
WTU 328534
Robert Ornduff 5030    18 Aug 1957
13. Lactuca serriola L.
Database ID
150058 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
328534 
Barcode
 
Other Numbers
 
Family
Asteraceae 
Name on Specimen
Lactuca serriola L. 
Accepted Name
Lactuca serriola L. 
Annotation History
1. Lactuca serriola L.  
Type Notes
 
Collector
Robert Ornduff 
Collection #
5030 
Other Collectors
 
Date Collected
18 Aug 1957 
Verbatim Date
 
Country
U.S.A. 
State or Province
Oregon 
County
Grant 
Locality
17 miles southeast of Dayville along Feilds Creek. 
Elevation
3300 ft. 
Coordinates
T14S R28E S1 
Site Description
Steep serpentine slopes. Growing with Stephanomeria tenuifolia, Lunia serpentina, Blepharipappus scaber, Mimulus cusickii. 
Specimen Notes
 
Phenology
Flowers 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Asteraceae
14. Lactuca serriola L.
U.S.A., Oregon, Curry County:
Cherry Flat, Rogue River.
Phenology: Flowers. Origin: Introduced.
WTU 300953
William H. Baker s.n.    28 Aug 1963
14. Lactuca serriola L.
Database ID
150070 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
300953 
Barcode
 
Other Numbers
 
Family
Asteraceae 
Name on Specimen
Lactuca serriola L. 
Accepted Name
Lactuca serriola L. 
Annotation History
1. Lactuca serriola L.  
Type Notes
 
Collector
William H. Baker 
Collection #
s.n. 
Other Collectors
 
Date Collected
28 Aug 1963 
Verbatim Date
 
Country
U.S.A. 
State or Province
Oregon 
County
Curry 
Locality
Cherry Flat, Rogue River. 
Elevation
 
Coordinates
 
Site Description
 
Specimen Notes
 
Phenology
Flowers 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Asteraceae
15. Lactuca serriola L.
U.S.A., Washington, San Juan County:
San Juan Islands. Sentinel Island.
Elev. 134 ft. 48° 38.381' N, 123° 9.049' W. Datum: WGS 84. Coordinate Source: Digital map.
One plant on bedrock at west end of island. SHEET 1 OF 2. Phenology: Fruits. Origin: Introduced.
WTU 394552
Phil Green 06-80    7 Sep 2006
15. Lactuca serriola L.
Database ID
154283 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
394552 
Barcode
 
Other Numbers
 
Family
Asteraceae 
Name on Specimen
Lactuca serriola L. 
Accepted Name
Lactuca serriola L. 
Annotation History
1. Lactuca serriola L.
    Annotated by David Giblin, 20 2006. Sources: FNA.  
Type Notes
 
Collector
Phil Green 
Collection #
06-80 
Other Collectors
 
Date Collected
7 Sep 2006 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
San Juan 
Locality
San Juan Islands. Sentinel Island. 
Elevation
134 ft. 
Coordinates
48° 38.381' N, 123° 9.049' W 
Site Description
 
Specimen Notes
One plant on bedrock at west end of island. SHEET 1 OF 2. 
Phenology
Fruits 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Asteraceae
16. Lactuca serriola L.
U.S.A., Washington, San Juan County:
San Juan Islands. Sentinel Island.
Elev. 134 ft. 48° 38.381' N, 123° 9.049' W. Datum: WGS 84. Coordinate Source: Digital map.
One plant on bedrock at west end of island. SHEET 2 OF 2. Phenology: Fruits. Origin: Introduced.
WTU 394544
Phil Green 06-80    7 Sep 2006
16. Lactuca serriola L.
Database ID
154284 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
394544 
Barcode
 
Other Numbers
 
Family
Asteraceae 
Name on Specimen
Lactuca serriola L. 
Accepted Name
Lactuca serriola L. 
Annotation History
1. Lactuca serriola L.
    Annotated by David Giblin, 20 2006. Sources: FNA.  
Type Notes
 
Collector
Phil Green 
Collection #
06-80 
Other Collectors
 
Date Collected
7 Sep 2006 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
San Juan 
Locality
San Juan Islands. Sentinel Island. 
Elevation
134 ft. 
Coordinates
48° 38.381' N, 123° 9.049' W 
Site Description
 
Specimen Notes
One plant on bedrock at west end of island. SHEET 2 OF 2. 
Phenology
Fruits 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Asteraceae
17. Lactuca serriola L.
U.S.A., Washington, Skagit County:
Padilla Bay National Estuarine Research Reserve. Private road running east-west; about 0.5 kilometer north of Highway 20.
Elev. 1 ft. 48° 27.399' N, 122° 30.646' W. Datum: WGS 84. Coordinate uncertainty: 5 meters. Coordinate Source: GPS.
Ditch with standing water along roadside; dominated by Typha latifolia. Common in mesic soil of roadside. Phenology: Flowers & Fruits. Origin: Introduced.
WTU 373184
David Giblin 767    16 Oct 2006
17. Lactuca serriola L.
Database ID
155171 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
373184 
Barcode
 
Other Numbers
 
Family
Asteraceae 
Name on Specimen
Lactuca serriola L. 
Accepted Name
Lactuca serriola L. 
Annotation History
1. Lactuca serriola L.
    Annotated by David Giblin, 14 2007. Sources: FNA.  
Type Notes
 
Collector
David Giblin 
Collection #
767 
Other Collectors
 
Date Collected
16 Oct 2006 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Skagit 
Locality
Padilla Bay National Estuarine Research Reserve. Private road running east-west; about 0.5 kilometer north of Highway 20. 
Elevation
1 ft. 
Coordinates
48° 27.399' N, 122° 30.646' W 
Site Description
Ditch with standing water along roadside; dominated by Typha latifolia. 
Specimen Notes
Common in mesic soil of roadside. 
Phenology
Flowers & Fruits 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Asteraceae
18. Lactuca serriola L.
U.S.A., Montana, Park County:
Five miles north of Gardiner.
45.10123°, -110.706453°. Datum: WGS 84. Coordinate uncertainty: 8000 meters. Georeferenced by Joseph Stormer. Coordinate Source: Digital Map.
Phenology: Fruits. Origin: Introduced.
WTU 98375
C. L. Hitchcock 13573    13 Aug 1945
with C. V. Muhlick
18. Lactuca serriola L.
Database ID
163327 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
98375 
Barcode
 
Other Numbers
 
Family
Asteraceae 
Name on Specimen
Lactuca serriola L. 
Accepted Name
Lactuca serriola L. 
Annotation History
1. Lactuca virosa L.
    Remarks: (not distinct from L. Scariola ?)
2. Lactuca serriola L.
    Annotated by Ben Legler, 12 2015. Remarks: Achenes light brown, oblanceolate. 
Type Notes
 
Collector
C. L. Hitchcock 
Collection #
13573 
Other Collectors
C. V. Muhlick 
Date Collected
13 Aug 1945 
Verbatim Date
 
Country
U.S.A. 
State or Province
Montana 
County
Park 
Locality
Five miles north of Gardiner. 
Elevation
 
Coordinates
45.10123°, -110.706453° 
Site Description
 
Specimen Notes
 
Phenology
Fruits 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Asteraceae
19. Lactuca serriola L.
Canada, British Columbia
Cathedral Park. Parking lot.
Disturbed gravel. Phenology: Fruits. Origin: Introduced.
WTU 274105
R. Hainault 7999    8 Aug 1976
19. Lactuca serriola L.
Database ID
163328 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
274105 
Barcode
 
Other Numbers
 
Family
Asteraceae 
Name on Specimen
Lactuca serriola L. 
Accepted Name
Lactuca serriola L. 
Annotation History
1. Lactuca serriola L.
    Annotated by R. Hainault.  
Type Notes
 
Collector
R. Hainault 
Collection #
7999 
Other Collectors
 
Date Collected
8 Aug 1976 
Verbatim Date
 
Country
Canada 
State or Province
British Columbia 
County
 
Locality
Cathedral Park. Parking lot. 
Elevation
 
Coordinates
 
Site Description
Disturbed gravel. 
Specimen Notes
 
Phenology
Fruits 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Asteraceae
20. Lactuca serriola L.
U.S.A., Idaho, Owyhee County:
Along Sinker Creek, Silver City Range.
43.065872°, -116.656761°. Datum: WGS 84. Coordinate uncertainty: 10000 meters. Georeferenced by WTU Staff. Coordinate Source: GeoLocate.
Dry gravelly sagebrush flat. Occasional. Phenology: Flowers & Fruits. Origin: Introduced.
WTU 303641
William H. Baker 8183    25 Jul 1951
20. Lactuca serriola L.
Database ID
163330 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
303641 
Barcode
 
Other Numbers
 
Family
Asteraceae 
Name on Specimen
Lactuca serriola L. 
Accepted Name
Lactuca serriola L. 
Annotation History
1. Lactuca serriola L.  
Type Notes
 
Collector
William H. Baker 
Collection #
8183 
Other Collectors
 
Date Collected
25 Jul 1951 
Verbatim Date
 
Country
U.S.A. 
State or Province
Idaho 
County
Owyhee 
Locality
Along Sinker Creek, Silver City Range. 
Elevation
 
Coordinates
43.065872°, -116.656761° 
Site Description
Dry gravelly sagebrush flat. 
Specimen Notes
Occasional. 
Phenology
Flowers & Fruits 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Asteraceae
21. Lactuca serriola L.
U.S.A., Idaho, Cassia County:
25 miles south of Albion.
42.050584°, -113.57722°. Datum: WGS 84. Coordinate uncertainty: 1000 meters. Georeferenced by WTU Staff. Coordinate Source: GeoLocate.
Roadside waste places. Common. Phenology: Flowers & Fruits. Origin: Introduced.
WTU 303633
William H. Baker 8768    29 Aug 1951
21. Lactuca serriola L.
Database ID
163331 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
303633 
Barcode
 
Other Numbers
 
Family
Asteraceae 
Name on Specimen
Lactuca serriola L. 
Accepted Name
Lactuca serriola L. 
Annotation History
1. Lactuca serriola L.  
Type Notes
 
Collector
William H. Baker 
Collection #
8768 
Other Collectors
 
Date Collected
29 Aug 1951 
Verbatim Date
 
Country
U.S.A. 
State or Province
Idaho 
County
Cassia 
Locality
25 miles south of Albion. 
Elevation
 
Coordinates
42.050584°, -113.57722° 
Site Description
Roadside waste places. 
Specimen Notes
Common. 
Phenology
Flowers & Fruits 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Asteraceae
22. Lactuca serriola L.
U.S.A., Montana, Sanders County:
Winter Range. Thompson place.
Elev. 3000 ft. T20N R23W S4. Datum: NAD 27. Coordinate uncertainty: 805 meters. Georeferenced by Ben Legler. Coordinate Source: TRS2LL.
Slope 5% east; clay; barn yard. Moderate abundance. Phenology: Flowers & Fruits. Origin: Introduced.
WTU 47987
D. R. Hudson 203    12 Jul 1938
22. Lactuca serriola L.
Database ID
163332 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
47987 
Barcode
 
Other Numbers
 
Family
Asteraceae 
Name on Specimen
Lactuca serriola L. 
Accepted Name
Lactuca serriola L. 
Annotation History
1. Lactuca integrata A. Nels.
2. Lactuca serriola L.  
Type Notes
 
Collector
D. R. Hudson 
Collection #
203 
Other Collectors
 
Date Collected
12 Jul 1938 
Verbatim Date
 
Country
U.S.A. 
State or Province
Montana 
County
Sanders 
Locality
Winter Range. Thompson place. 
Elevation
3000 ft. 
Coordinates
T20N R23W S4 
Site Description
Slope 5% east; clay; barn yard. 
Specimen Notes
Moderate abundance. 
Phenology
Flowers & Fruits 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Asteraceae
23. Lactuca serriola L.
U.S.A., Idaho, Bonneville County:
Palisade Creek Canyon, Targhee National Forest, 4 miles east of Irwin.
T1N R44E S24. Datum: WGS 84. Coordinate uncertainty: 1000 meters. Georeferenced by WTU Staff. Coordinate Source: GeoLocate.
Steep rocky hillside. Phenology: Flowers. Origin: Introduced.
WTU 300855
William H. Baker 9672    6 Aug 1952
23. Lactuca serriola L.
Database ID
163334 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
300855 
Barcode
 
Other Numbers
 
Family
Asteraceae 
Name on Specimen
Lactuca serriola L. 
Accepted Name
Lactuca serriola L. 
Annotation History
1. Lactuca serriola L.  
Type Notes
 
Collector
William H. Baker 
Collection #
9672 
Other Collectors
 
Date Collected
6 Aug 1952 
Verbatim Date
 
Country
U.S.A. 
State or Province
Idaho 
County
Bonneville 
Locality
Palisade Creek Canyon, Targhee National Forest, 4 miles east of Irwin. 
Elevation
 
Coordinates
T1N R44E S24 
Site Description
Steep rocky hillside. 
Specimen Notes
 
Phenology
Flowers 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Asteraceae
24. Lactuca serriola L.
U.S.A., Washington, Snohomish County:
Along Snohomish River north of Langus Riverfront Park north of Everett.
T29N R5E S16. Datum: NAD 27. Coordinate uncertainty: 805 meters. Georeferenced by Ben Legler. Coordinate Source: TRS2LL.
At edge of dike with Conyza canadensis, Trifolium pratense, Phalaris arundinacea and Rubus discolor. Flowers yellow. Some plants branching to 6 feet tall, leaves to 6 inches long. [Located in teaching collection]. Phenology: Flowers & Fruits. Origin: Introduced.
WTU 327918; Barcode: WTU-V-005621
M. Arnot 664    10 Aug 1993
24. Lactuca serriola L.
Database ID
166539 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
327918 
Barcode
WTU-V-005621 
Other Numbers
 
Family
Asteraceae 
Name on Specimen
Lactuca serriola L. 
Accepted Name
Lactuca serriola L. 
Annotation History
1. Lactuca serriola L.  
Type Notes
 
Collector
M. Arnot 
Collection #
664 
Other Collectors
 
Date Collected
10 Aug 1993 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Snohomish 
Locality
Along Snohomish River north of Langus Riverfront Park north of Everett. 
Elevation
 
Coordinates
T29N R5E S16 
Site Description
At edge of dike with Conyza canadensis, Trifolium pratense, Phalaris arundinacea and Rubus discolor. 
Specimen Notes
Flowers yellow. Some plants branching to 6 feet tall, leaves to 6 inches long. [Located in teaching collection]. 
Phenology
Flowers & Fruits 
Origin
Introduced 
Cultivated?
No 
Imaged?
Yes 

Asteraceae
25. Lactuca serriola L.
U.S.A., Washington, King County:
Seattle, Herring's House Park, western bank of Duwamish River.
47.510421°, -122.294435°. Datum: WGS 84. Coordinate uncertainty: 10000 meters. Georeferenced by WTU Staff. Coordinate Source: GeoLocate.
In and near northern end of park in restoration area. Flowers yellow with tinges of red, milky juice. Phenology: Flowers. Origin: Introduced.
WTU 370092
Jeff Walker 79    26 Jul 2003
25. Lactuca serriola L.
Database ID
166990 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
370092 
Barcode
 
Other Numbers
 
Family
Asteraceae 
Name on Specimen
Lactuca serriola L. 
Accepted Name
Lactuca serriola L. 
Annotation History
1. Lactuca serriola L.  
Type Notes
 
Collector
Jeff Walker 
Collection #
79 
Other Collectors
 
Date Collected
26 Jul 2003 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
King 
Locality
Seattle, Herring's House Park, western bank of Duwamish River. 
Elevation
 
Coordinates
47.510421°, -122.294435° 
Site Description
In and near northern end of park in restoration area. 
Specimen Notes
Flowers yellow with tinges of red, milky juice. 
Phenology
Flowers 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Asteraceae
26. Lactuca serriola L.
U.S.A., Washington, Adams County:
Columbia National Wildlife Refuge. McMannaman Lake. From south end of lake along shoreline to northwest corner where stream feeds lake.
Elev. 820 ft. 46.90818° N, 119.2288° W. Datum: WGS 84. Coordinate uncertainty: 2 meters.
Lake in basalt rimrock dominated by Schoenoplectus acutus, Bulboschoenus sp., and Typha latifolia. Cirsium arvense invading peripheral upland. Scattered in mesic soil along periphery of lake. Phenology: Flowers & Fruits. Origin: Introduced.
WTU 380469
David Giblin 2450    5 Sep 2008
26. Lactuca serriola L.
Database ID
174414 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
380469 
Barcode
 
Other Numbers
 
Family
Asteraceae 
Name on Specimen
Lactuca serriola L. 
Accepted Name
Lactuca serriola L. 
Annotation History
1. Lactuca serriola L.
    Annotated by David Giblin, 24 2009. Sources: FNA.  
Type Notes
 
Collector
David Giblin 
Collection #
2450 
Other Collectors
 
Date Collected
5 Sep 2008 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Adams 
Locality
Columbia National Wildlife Refuge. McMannaman Lake. From south end of lake along shoreline to northwest corner where stream feeds lake. 
Elevation
820 ft. 
Coordinates
46.90818° N, 119.2288° W 
Site Description
Lake in basalt rimrock dominated by Schoenoplectus acutus, Bulboschoenus sp., and Typha latifolia. Cirsium arvense invading peripheral upland. 
Specimen Notes
Scattered in mesic soil along periphery of lake. 
Phenology
Flowers & Fruits 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Asteraceae
27. Lactuca serriola L.
U.S.A., Washington, Skagit County:
Padilla Bay National Estuarine Research Reserve. Hat Island. Southeast and southern end of island.
48° 31.326' N, 122° 32.728' W. Datum: WGS 84.
Douglas fir forested high island with steep grassy balds (Elymus glaucus, Festuca rubra, Koeleria macrantha) on south side, with mostly native bunch grasses and abundant Zigadenus venenosus. Scattered in forest understory. Phenology: Fruits. Origin: Introduced.
WTU 388942
David Giblin 3213    17 Sep 2009
27. Lactuca serriola L.
Database ID
184893 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
388942 
Barcode
 
Other Numbers
 
Family
Asteraceae 
Name on Specimen
Lactuca serriola L. 
Accepted Name
Lactuca serriola L. 
Annotation History
1. Lactuca serriola L.
    Annotated by Rosie Cullinare, 24 2011. Sources: FNA, H&C.  
Type Notes
 
Collector
David Giblin 
Collection #
3213 
Other Collectors
 
Date Collected
17 Sep 2009 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Skagit 
Locality
Padilla Bay National Estuarine Research Reserve. Hat Island. Southeast and southern end of island. 
Elevation
 
Coordinates
48° 31.326' N, 122° 32.728' W 
Site Description
Douglas fir forested high island with steep grassy balds (Elymus glaucus, Festuca rubra, Koeleria macrantha) on south side, with mostly native bunch grasses and abundant Zigadenus venenosus. 
Specimen Notes
Scattered in forest understory. 
Phenology
Fruits 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Asteraceae
28. Lactuca serriola L.
U.S.A., Washington, Franklin County:
Scootenay Reservoir. Southeast area near boat launch with Populus tremuloides trees.
Elev. 283 m. 46.69994° N, 119.0232° W. Datum: WGS 84. Coordinate uncertainty: 5 meters. Georeferenced by Maria Yousoufian.
Lake shore edge dominated by Phalaris arundinacea; adjacent shrub-steppe; water to 1 meter deep. Common and abundant in disturbed soil. Phenology: Fruits. Origin: Introduced.
WTU 399916; Barcode: WTU-V-006205
David Giblin 3272    30 Sep 2009
28. Lactuca serriola L.
Database ID
187289 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
399916 
Barcode
WTU-V-006205 
Other Numbers
 
Family
Asteraceae 
Name on Specimen
Lactuca serriola L. 
Accepted Name
Lactuca serriola L. 
Annotation History
1. Lactuca serriola L.
    Annotated by Katie Messick, 30 2013. Sources: FNA.  
Type Notes
 
Collector
David Giblin 
Collection #
3272 
Other Collectors
 
Date Collected
30 Sep 2009 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Franklin 
Locality
Scootenay Reservoir. Southeast area near boat launch with Populus tremuloides trees. 
Elevation
283 m. 
Coordinates
46.69994° N, 119.0232° W 
Site Description
Lake shore edge dominated by Phalaris arundinacea; adjacent shrub-steppe; water to 1 meter deep. 
Specimen Notes
Common and abundant in disturbed soil. 
Phenology
Fruits 
Origin
Introduced 
Cultivated?
No 
Imaged?
Yes 

Asteraceae
29. Lactuca serriola L. var. integrata Gren. & Godr.
     (= Lactuca serriola L.)
U.S.A., Washington, Snohomish County:
Cutover above Tulare Beach.
48.101476°, -122.338224°. Datum: WGS 84. Coordinate uncertainty: 602 meters. Georeferenced by Maria Yousoufian. Coordinate Source: Digital Map.
Phenology: Fruits. Origin: Introduced.
WTU 402538; Barcode: WTU-V-010695
Clayton Haberman s.n.    28 Aug 1987
29. Lactuca serriola L. var. integrata Gren. & Godr.
Database ID
2450070 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
402538 
Barcode
WTU-V-010695 
Other Numbers
 
Family
Asteraceae 
Name on Specimen
Lactuca serriola L. var. integrata Gren. & Godr. 
Accepted Name
Lactuca serriola L. 
Annotation History
1. Lactuca serriola L. var. integrata Gren. & Godr.  
Type Notes
 
Collector
Clayton Haberman 
Collection #
s.n. 
Other Collectors
 
Date Collected
28 Aug 1987 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Snohomish 
Locality
Cutover above Tulare Beach. 
Elevation
 
Coordinates
48.101476°, -122.338224° 
Site Description
 
Specimen Notes
 
Phenology
Fruits 
Origin
Introduced 
Cultivated?
No 
Imaged?
Yes 

Asteraceae
30. Lactuca serriola L.
U.S.A., Washington, Snohomish County:
Tulare Beach. East shore Port Susan.
Tide lands. Phenology: Fruits. Origin: Introduced.
WTU 402596; Barcode: WTU-V-010840
Clayton Haberman s.n.    6 Aug 2000
30. Lactuca serriola L.
Database ID
2450143 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
402596 
Barcode
WTU-V-010840 
Other Numbers
 
Family
Asteraceae 
Name on Specimen
Lactuca serriola L. 
Accepted Name
Lactuca serriola L. 
Annotation History
1. Lactuca serriola L.  
Type Notes
 
Collector
Clayton Haberman 
Collection #
s.n. 
Other Collectors
 
Date Collected
6 Aug 2000 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Snohomish 
Locality
Tulare Beach. East shore Port Susan. 
Elevation
 
Coordinates
 
Site Description
Tide lands. 
Specimen Notes
 
Phenology
Fruits 
Origin
Introduced 
Cultivated?
No 
Imaged?
Yes 

Asteraceae
31. Lactuca serriola L.
U.S.A., Washington, Snohomish County:
East side Port Susan, north Tulare Beach.
48.105718°, -122.34509°. Datum: WGS 84. Coordinate uncertainty: 367 meters. Georeferenced by Maria Yousoufian. Coordinate Source: Digital map.
Base, sandy-clay bank. Sheet 2 of 2. Phenology: Fruits. Origin: Introduced.
WTU 402599; Barcode: WTU-V-010864
Clayton Haberman s.n.    24 Aug 2004
31. Lactuca serriola L.
Database ID
2450255 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
402599 
Barcode
WTU-V-010864 
Other Numbers
 
Family
Asteraceae 
Name on Specimen
Lactuca serriola L. 
Accepted Name
Lactuca serriola L. 
Annotation History
1. Lactuca serriola L.  
Type Notes
 
Collector
Clayton Haberman 
Collection #
s.n. 
Other Collectors
 
Date Collected
24 Aug 2004 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Snohomish 
Locality
East side Port Susan, north Tulare Beach. 
Elevation
 
Coordinates
48.105718°, -122.34509° 
Site Description
Base, sandy-clay bank. 
Specimen Notes
Sheet 2 of 2. 
Phenology
Fruits 
Origin
Introduced 
Cultivated?
No 
Imaged?
Yes 

Asteraceae
32. Lactuca serriola L.
U.S.A., Washington, Snohomish County:
East side Port Susan, north Tulare Beach.
48.105718°, -122.34509°. Datum: WGS 84. Coordinate uncertainty: 367 meters. Georeferenced by Maria Yousoufian. Coordinate Source: Digital map.
Base, sandy-clay bank. Sheet 1 of 2. Phenology: Vegetative. Origin: Introduced.
WTU 402598; Barcode: WTU-V-010865
Clayton Haberman s.n.    24 Aug 2004
32. Lactuca serriola L.
Database ID
2450256 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
402598 
Barcode
WTU-V-010865 
Other Numbers
 
Family
Asteraceae 
Name on Specimen
Lactuca serriola L. 
Accepted Name
Lactuca serriola L. 
Annotation History
1. Lactuca serriola L.  
Type Notes
 
Collector
Clayton Haberman 
Collection #
s.n. 
Other Collectors
 
Date Collected
24 Aug 2004 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Snohomish 
Locality
East side Port Susan, north Tulare Beach. 
Elevation
 
Coordinates
48.105718°, -122.34509° 
Site Description
Base, sandy-clay bank. 
Specimen Notes
Sheet 1 of 2. 
Phenology
Vegetative 
Origin
Introduced 
Cultivated?
No 
Imaged?
Yes 

Asteraceae
33. Lactuca serriola L.
U.S.A., Washington, Chelan County:
Columbia River, Wenatchee Confluence Park, wildlife area off the north end of the bike path along the Columbia River.
Elev. 700 ft. 47° 26.876' N, 120° 19.473' W; T23N R20E S27 SWSW. Coordinate Source: Specimen Label.
Open, weedy, grassy area adjacent to trail. Phenology: Fruits. Origin: Introduced.
WTU 405056; Barcode: WTU-V-013443
P. Camp 3531    23 Aug 2015
33. Lactuca serriola L.
Database ID
2787265 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
405056 
Barcode
WTU-V-013443 
Other Numbers
 
Family
Asteraceae 
Name on Specimen
Lactuca serriola L. 
Accepted Name
Lactuca serriola L. 
Annotation History
1. Lactuca serriola L.  
Type Notes
 
Collector
P. Camp 
Collection #
3531 
Other Collectors
 
Date Collected
23 Aug 2015 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Chelan 
Locality
Columbia River, Wenatchee Confluence Park, wildlife area off the north end of the bike path along the Columbia River. 
Elevation
700 ft. 
Coordinates
47° 26.876' N, 120° 19.473' W; T23N R20E S27 SWSW 
Site Description
Open, weedy, grassy area adjacent to trail. 
Specimen Notes
 
Phenology
Fruits 
Origin
Introduced 
Cultivated?
No 
Imaged?
Yes 

Asteraceae
34. Lactuca serriola L.
U.S.A., Washington, Grant County:
Wetland Reserve Program site on Wilson Creek.
47.41046° N, 119.09991° W. Coordinate Source: GPS.
Bassia scoparia is dominant with Echinochloa crus-galli. Anthemis cotula also present and common. Soil dry, granular. Abundance: Common. Growth Habit: Erect, flower-buds. Site ID: NWCA16-4860. Visit #1. Collection #Q3 (QA Voucher). Phenology: Fertile. Origin: Introduced.
WTU 411101; Barcode: WTU-V-025513
Patricia Johnson NWCA16-4860-V1-Q3    6 Jul 2016
34. Lactuca serriola L.
Database ID
2834216 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
411101 
Barcode
WTU-V-025513 
Other Numbers
 
Family
Asteraceae 
Name on Specimen
Lactuca serriola L. 
Accepted Name
Lactuca serriola L. 
Annotation History
1. Lactuca serriola L.
    Annotated by David Giblin, 18 2016. Sources: FNA.  
Type Notes
 
Collector
Patricia Johnson 
Collection #
NWCA16-4860-V1-Q3 
Other Collectors
 
Date Collected
6 Jul 2016 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Grant 
Locality
Wetland Reserve Program site on Wilson Creek. 
Elevation
 
Coordinates
47.41046° N, 119.09991° W 
Site Description
Bassia scoparia is dominant with Echinochloa crus-galli. Anthemis cotula also present and common. Soil dry, granular. 
Specimen Notes
Abundance: Common. Growth Habit: Erect, flower-buds. Site ID: NWCA16-4860. Visit #1. Collection #Q3 (QA Voucher). 
Phenology
Fertile 
Origin
Introduced 
Cultivated?
No 
Imaged?
Yes 

Asteraceae
35. Lactuca serriola L.
U.S.A., Washington, Garfield County:
Growing along Highway 12 at Alpowa Summit.
Elev. 2785 ft. 46.43604° N, 117.42607° W. Coordinate Source: Specimen Label.
Growing with Conyza canadensis. Contains milky latex. Flowers pale yellow. Phenology: Flowers and Fruits. Origin: Introduced.
WTU 409861; Barcode: WTU-V-023899
Jeff Walker 873    8 Aug 2016
35. Lactuca serriola L.
Database ID
3103452 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
409861 
Barcode
WTU-V-023899 
Other Numbers
 
Family
Asteraceae 
Name on Specimen
Lactuca serriola L. 
Accepted Name
Lactuca serriola L. 
Annotation History
1. Lactuca serriola L.  
Type Notes
 
Collector
Jeff Walker 
Collection #
873 
Other Collectors
 
Date Collected
8 Aug 2016 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Garfield 
Locality
Growing along Highway 12 at Alpowa Summit. 
Elevation
2785 ft. 
Coordinates
46.43604° N, 117.42607° W 
Site Description
Growing with Conyza canadensis. 
Specimen Notes
Contains milky latex. Flowers pale yellow.  
Phenology
Flowers and Fruits 
Origin
Introduced 
Cultivated?
No 
Imaged?
Yes 

Asteraceae
36. Lactuca serriola L.
U.S.A., Washington, Klickitat County:
Alongs Dallesport Road, Dallesport.
45.629349°, -121.178486°. Datum: WGS 84. Coordinate uncertainty: 2034 meters. Georeferenced by Dan Post. Coordinate Source: Digital Map.
Weedy roadside. Phenology: Flowers.
WTU 415899; Barcode: WTU-V-034185
David Gross 1268    2 Aug 2017
36. Lactuca serriola L.
Database ID
3147030 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
415899 
Barcode
WTU-V-034185 
Other Numbers
 
Family
Asteraceae 
Name on Specimen
Lactuca serriola L. 
Accepted Name
Lactuca serriola L. 
Annotation History
1. Lactuca serriola L.
    Annotated by David Gross.  
Type Notes
 
Collector
David Gross 
Collection #
1268 
Other Collectors
 
Date Collected
2 Aug 2017 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Klickitat 
Locality
Alongs Dallesport Road, Dallesport. 
Elevation
 
Coordinates
45.629349°, -121.178486° 
Site Description
Weedy roadside. 
Specimen Notes
 
Phenology
Flowers 
Origin
 
Cultivated?
No 
Imaged?
Yes 

Asteraceae
37. Lactuca serriola L.
U.S.A., Washington, Asotin County:
On south side of Highway 12.
Elev. 975 ft. 46.0518° N, 117.25449° W. Coordinate Source: Specimen Label.
Along roadside with Helianthus annuus. Flowers yellow Phenology: Flowers and Fruits. Origin: Introduced.
WTU 418481; Barcode: WTU-V-039143
Jeff Walker 1095    2 Sep 2018
37. Lactuca serriola L.
Database ID
3234772 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
418481 
Barcode
WTU-V-039143 
Other Numbers
 
Family
Asteraceae 
Name on Specimen
Lactuca serriola L. 
Accepted Name
Lactuca serriola L. 
Annotation History
1. Lactuca serriola L.  
Type Notes
 
Collector
Jeff Walker 
Collection #
1095 
Other Collectors
 
Date Collected
2 Sep 2018 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Asotin 
Locality
On south side of Highway 12.  
Elevation
975 ft. 
Coordinates
46.0518° N, 117.25449° W 
Site Description
Along roadside with Helianthus annuus. 
Specimen Notes
Flowers yellow 
Phenology
Flowers and Fruits 
Origin
Introduced 
Cultivated?
No 
Imaged?
Yes 

Asteraceae
38. Lactuca serriola L.
U.S.A., Colorado, Garfield County:
Parachute Creek. Near Grand Valley, west of Rifle.
39.519754°, -108.120831°. Datum: WGS 84. Coordinate uncertainty: 10000 meters. Georeferenced by John Haskins. Coordinate Source: Digital Map.
Old field between a ditch and the creek. Mostly flat, SE aspect. Russian thistle (abundant), bindweed, cheatgrass. Big sagebrush, rabbitbrush, greasewood on the field edges. Alkaline, silt-clay soils. Currently grazed. Phenology: Flowers. Origin: Introduced.
WTU 418693; Barcode: WTU-V-040139
P. Camp 2522    27 Jul 1976
38. Lactuca serriola L.
Database ID
3235467 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
418693 
Barcode
WTU-V-040139 
Other Numbers
 
Family
Asteraceae 
Name on Specimen
Lactuca serriola L. 
Accepted Name
Lactuca serriola L. 
Annotation History
1. Lactuca serriola L.  
Type Notes
 
Collector
P. Camp 
Collection #
2522 
Other Collectors
 
Date Collected
27 Jul 1976 
Verbatim Date
 
Country
U.S.A. 
State or Province
Colorado 
County
Garfield 
Locality
Parachute Creek. Near Grand Valley, west of Rifle. 
Elevation
 
Coordinates
39.519754°, -108.120831° 
Site Description
Old field between a ditch and the creek. Mostly flat, SE aspect. Russian thistle (abundant), bindweed, cheatgrass. Big sagebrush, rabbitbrush, greasewood on the field edges. Alkaline, silt-clay soils. Currently grazed. 
Specimen Notes
 
Phenology
Flowers 
Origin
Introduced 
Cultivated?
No 
Imaged?
Yes 

Asteraceae
39. Lactuca serriola L.
U.S.A., Washington, Pierce County:
JBLM, TA-12, Chambers Lake.
Elev. 99 m. 47.01406° N, 122.53193° W. Datum: WGS 84. Coordinate Source: GPS.
Occasional among Phalaris arundinacea. Origin: Introduced.
WTU
Peter Dunwiddie PWD-16-433    23 Sep 2016
with Sarah Krock, Peter Zika, Rod Gilbert
39. Lactuca serriola L.
Database ID
3245265 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
 
Barcode
 
Other Numbers
 
Family
Asteraceae 
Name on Specimen
Lactuca serriola L. 
Accepted Name
Lactuca serriola L. 
Annotation History
1. Lactuca serriola L.
    Annotated by Peter Zika.  
Type Notes
 
Collector
Peter Dunwiddie 
Collection #
PWD-16-433 
Other Collectors
Sarah Krock, Peter Zika, Rod Gilbert 
Date Collected
23 Sep 2016 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Pierce 
Locality
JBLM, TA-12, Chambers Lake. 
Elevation
99 m. 
Coordinates
47.01406° N, 122.53193° W 
Site Description
Occasional among Phalaris arundinacea. 
Specimen Notes
 
Phenology
 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Asteraceae
40. Lactuca serriola L.
U.S.A., Washington, Skamania County:
Icehouse Lake and adjacent old beaver ponds on north end. North side of Highway 14 at intersection with Bridge of the Gods.
Elev. 49 m. 45.66138° N, 121.90633° W. Datum: WGS 84. Coordinate uncertainty: 200 meters. Coordinate Source: GPS.
Eutrophic ponds with shoreline of main pond dominated by Iris pseudacorus, Typha latifolia, Leersia oryzoides and Juncus effusus; beaver ponds less disturbed with Bidens cernua common along shoreline with Equisetum telmateia. Uncommon in upland adjacent to beaver pond; annual; fruits blackish. Phenology: Fruits. Origin: Introduced.
WTU 420640; Barcode: WTU-V-048421
David Giblin 6459    13 Sep 2018
40. Lactuca serriola L.
Database ID
3246758 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
420640 
Barcode
WTU-V-048421 
Other Numbers
 
Family
Asteraceae 
Name on Specimen
Lactuca serriola L. 
Accepted Name
Lactuca serriola L. 
Annotation History
1. Lactuca serriola L.
    Annotated by David Giblin, 19 2018. Sources: Flora PNW, 2nd.  
Type Notes
 
Collector
David Giblin 
Collection #
6459 
Other Collectors
 
Date Collected
13 Sep 2018 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Skamania 
Locality
Icehouse Lake and adjacent old beaver ponds on north end. North side of Highway 14 at intersection with Bridge of the Gods. 
Elevation
49 m. 
Coordinates
45.66138° N, 121.90633° W 
Site Description
Eutrophic ponds with shoreline of main pond dominated by Iris pseudacorus, Typha latifolia, Leersia oryzoides and Juncus effusus; beaver ponds less disturbed with Bidens cernua common along shoreline with Equisetum telmateia. 
Specimen Notes
Uncommon in upland adjacent to beaver pond; annual; fruits blackish. 
Phenology
Fruits 
Origin
Introduced 
Cultivated?
No 
Imaged?
Yes 

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


Disclaimer:

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