Collections Database

Label Data
Download
Field Descriptions
32 matching records found.
Label Query: Genus = "Ambrosia", Species = "artemisiifolia"
Asteraceae
1. Ambrosia artemisiifolia L.
U.S.A., Washington, King County:
Near South Doris Street, north of Boeing Field, Van Asselt, Seattle.
Elev. 16 ft. T24N R4E S20. Datum: NAD 27. Coordinate uncertainty: 805 meters. Georeferenced by Ben Legler. Coordinate Source: TRS2LL.
Dry ground, full sun, railroad right-of-way. Waif, gravel ballast with Kochia, Salsola. Phenology: Flowers & Fruits. Origin: Introduced.
WTU 346864; Barcode: WTU-V-014716
P. F. Zika 15580    25 Oct 2000
with A. L. Jacobson
1. Ambrosia artemisiifolia L.
Database ID
17134 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
346864 
Barcode
WTU-V-014716 
Other Numbers
 
Family
Asteraceae 
Name on Specimen
Ambrosia artemisiifolia L. 
Accepted Name
Ambrosia artemisiifolia L. 
Annotation History
1. Ambrosia artemisiifolia L.  
Type Notes
 
Collector
P. F. Zika 
Collection #
15580 
Other Collectors
A. L. Jacobson 
Date Collected
25 Oct 2000 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
King 
Locality
Near South Doris Street, north of Boeing Field, Van Asselt, Seattle. 
Elevation
16 ft. 
Coordinates
T24N R4E S20 
Site Description
Dry ground, full sun, railroad right-of-way. 
Specimen Notes
Waif, gravel ballast with Kochia, Salsola. 
Phenology
Flowers & Fruits 
Origin
Introduced 
Cultivated?
No 
Imaged?
Yes 

Asteraceae
2. Ambrosia artemisiifolia L.
U.S.A., Washington, Yakima County:
Near Buena Vista.
46.42889°, -120.31222°. Datum: WGS 84. Coordinate uncertainty: 5000 meters. Georeferenced by WTU Staff. Coordinate Source: GeoLocate.
Dry area. Phenology: Flowers. Origin: Introduced.
WTU 153420
Carl Nelson s.n.    14 Aug 1954
2. Ambrosia artemisiifolia L.
Database ID
17135 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
153420 
Barcode
 
Other Numbers
 
Family
Asteraceae 
Name on Specimen
Ambrosia artemisiifolia L. 
Accepted Name
Ambrosia artemisiifolia L. 
Annotation History
1. Ambrosia artemisiifolia L.  
Type Notes
 
Collector
Carl Nelson 
Collection #
s.n. 
Other Collectors
 
Date Collected
14 Aug 1954 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Yakima 
Locality
Near Buena Vista. 
Elevation
 
Coordinates
46.42889°, -120.31222° 
Site Description
Dry area. 
Specimen Notes
 
Phenology
Flowers 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Asteraceae
3. Ambrosia artemisiifolia L.
U.S.A., Washington, King County:
Green Lake Park, Seattle.
47.679188°, -122.327777°. Datum: WGS 84. Coordinate uncertainty: 178 meters. Georeferenced by Maria Yousoufian. Coordinate Source: Digital Map.
East North American annual herb; weedy; rarely found in Seattle vicinity. Phenology: Flowers. Origin: Introduced.
WTU 344128; Barcode: WTU-V-014719
Arthur Lee Jacobson s.n.     1991
3. Ambrosia artemisiifolia L.
Database ID
142174 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
344128 
Barcode
WTU-V-014719 
Other Numbers
 
Family
Asteraceae 
Name on Specimen
Ambrosia artemisiifolia L. 
Accepted Name
Ambrosia artemisiifolia L. 
Annotation History
1. Ambrosia artemisiifolia L.  
Type Notes
 
Collector
Arthur Lee Jacobson 
Collection #
s.n. 
Other Collectors
 
Date Collected
1991 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
King 
Locality
Green Lake Park, Seattle. 
Elevation
 
Coordinates
47.679188°, -122.327777° 
Site Description
 
Specimen Notes
East North American annual herb; weedy; rarely found in Seattle vicinity. 
Phenology
Flowers 
Origin
Introduced 
Cultivated?
No 
Imaged?
Yes 

Asteraceae
4. Ambrosia artemisiifolia L.
U.S.A., Idaho, Boise County:
Squaw Butte.
Elev. 3500 ft.
Creek bottom. Phenology: Flowers.
WTU 28378
June A. Clark 265    18 Aug 1911
4. Ambrosia artemisiifolia L.
Database ID
142178 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
28378 
Barcode
 
Other Numbers
 
Family
Asteraceae 
Name on Specimen
Ambrosia artemisiifolia L. 
Accepted Name
Ambrosia artemisiifolia L. 
Annotation History
1. Ambrosia artemisiifolia L.
    Annotated by Aven Nelson. Remarks: [Verbatim species name: artemisiaefolia.] 
Type Notes
 
Collector
June A. Clark 
Collection #
265 
Other Collectors
 
Date Collected
18 Aug 1911 
Verbatim Date
 
Country
U.S.A. 
State or Province
Idaho 
County
Boise 
Locality
Squaw Butte. 
Elevation
3500 ft. 
Coordinates
 
Site Description
Creek bottom. 
Specimen Notes
 
Phenology
Flowers 
Origin
 
Cultivated?
No 
Imaged?
No 

Asteraceae
5. Ambrosia artemisiifolia L. var. elatior (L.) Descourtils
     (= Ambrosia artemisiifolia L.)
U.S.A., Oregon, Umatilla County:
North of Umatilla.
Phenology: Flowers & Fruits.
WTU 155761
M. J. Belton s.n.    10 Sep 1953
5. Ambrosia artemisiifolia L. var. elatior (L.) Descourtils
Database ID
142182 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
155761 
Barcode
 
Other Numbers
 
Family
Asteraceae 
Name on Specimen
Ambrosia artemisiifolia L. var. elatior (L.) Descourtils 
Accepted Name
Ambrosia artemisiifolia L. 
Annotation History
1. Ambrosia artemisiifolia L. var. elatior (L.) Descourtils.
    Annotated by Q. D. Clarkson and A. N. Steward.  
Type Notes
 
Collector
M. J. Belton 
Collection #
s.n. 
Other Collectors
 
Date Collected
10 Sep 1953 
Verbatim Date
 
Country
U.S.A. 
State or Province
Oregon 
County
Umatilla 
Locality
North of Umatilla. 
Elevation
 
Coordinates
 
Site Description
 
Specimen Notes
 
Phenology
Flowers & Fruits 
Origin
 
Cultivated?
No 
Imaged?
No 

Asteraceae
6. Ambrosia artemisiifolia L.
U.S.A., Oregon, Multnomah County:
Portland.
45.52361°, -122.675°. Datum: WGS 84. Coordinate uncertainty: 12756 meters. Georeferenced by Maria Yousoufian. Coordinate Source: GeoLocate.
Phenology: Flowers.
WTU 227663
Wilhelm N. Suksdorf 3021    24 Aug 1901
6. Ambrosia artemisiifolia L.
Database ID
142183 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
227663 
Barcode
 
Other Numbers
 
Family
Asteraceae 
Name on Specimen
Ambrosia artemisiifolia L. 
Accepted Name
Ambrosia artemisiifolia L. 
Annotation History
1. Franseria acanthicarpa (Hook.) Coville.
2. Ambrosia artemisiifolia L.
    Annotated by D. W. Payne, 1969.  
Type Notes
 
Collector
Wilhelm N. Suksdorf 
Collection #
3021 
Other Collectors
 
Date Collected
24 Aug 1901 
Verbatim Date
 
Country
U.S.A. 
State or Province
Oregon 
County
Multnomah 
Locality
Portland. 
Elevation
 
Coordinates
45.52361°, -122.675° 
Site Description
 
Specimen Notes
 
Phenology
Flowers 
Origin
 
Cultivated?
No 
Imaged?
No 

Asteraceae
7. Ambrosia artemisiifolia L.
U.S.A., Oregon, Multnomah County:
Linnton near Portland.
45.598728°, -122.787044°. Datum: WGS 84. Coordinate uncertainty: 1800 meters. Georeferenced by Joseph Stormer. Coordinate Source: GeoLocate.
Reference specimen for illustration in Revision of Flora of the Pacific Northwest WTU Herbarium, 2016. Phenology: Flowers & Fruits.
WTU 230406; Barcode: WTU-V-030359
Wilhelm N. Suksdorf 1680    3 Nov 1911
7. Ambrosia artemisiifolia L.
Database ID
142185 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
230406 
Barcode
WTU-V-030359 
Other Numbers
 
Family
Asteraceae 
Name on Specimen
Ambrosia artemisiifolia L. 
Accepted Name
Ambrosia artemisiifolia L. 
Annotation History
1. Ambrosia artemisiifolia L.  
Type Notes
 
Collector
Wilhelm N. Suksdorf 
Collection #
1680 
Other Collectors
 
Date Collected
3 Nov 1911 
Verbatim Date
 
Country
U.S.A. 
State or Province
Oregon 
County
Multnomah 
Locality
Linnton near Portland. 
Elevation
 
Coordinates
45.598728°, -122.787044° 
Site Description
 
Specimen Notes
Reference specimen for illustration in Revision of Flora of the Pacific Northwest WTU Herbarium, 2016. 
Phenology
Flowers & Fruits 
Origin
 
Cultivated?
No 
Imaged?
Yes 

Asteraceae
8. Ambrosia artemisiifolia L.
U.S.A., Oregon, Multnomah County:
At Linnton.
Dry ground. Phenology: Flowers.
WTU 6808JWT
J. William Thompson 3883    9 Sep 1927
8. Ambrosia artemisiifolia L.
Database ID
142186 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
6808JWT 
Barcode
 
Other Numbers
 
Family
Asteraceae 
Name on Specimen
Ambrosia artemisiifolia L. 
Accepted Name
Ambrosia artemisiifolia L. 
Annotation History
1. Ambrosia artemisiifolia L.
    Annotated by Dr. S. F. Blake. Remarks: [Verbatim species name: artemisiaefolia.] 
Type Notes
 
Collector
J. William Thompson 
Collection #
3883 
Other Collectors
 
Date Collected
9 Sep 1927 
Verbatim Date
 
Country
U.S.A. 
State or Province
Oregon 
County
Multnomah 
Locality
At Linnton. 
Elevation
 
Coordinates
 
Site Description
Dry ground. 
Specimen Notes
 
Phenology
Flowers 
Origin
 
Cultivated?
No 
Imaged?
No 

Asteraceae
9. Ambrosia artemisiifolia L.
U.S.A., Idaho, Canyon County:
Caldwell.
43.66306°, -116.68639°. Datum: WGS 84. Coordinate uncertainty: 10000 meters. Georeferenced by WTU Staff. Coordinate Source: GeoLocate.
Came in alfalfa seed. Phenology: Flowers & Fruits.
WTU 261652
H. M. Tucker 202     Sep 1932
9. Ambrosia artemisiifolia L.
Database ID
142187 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
261652 
Barcode
 
Other Numbers
 
Family
Asteraceae 
Name on Specimen
Ambrosia artemisiifolia L. 
Accepted Name
Ambrosia artemisiifolia L. 
Annotation History
1. Ambrosia artemisiifolia L.  
Type Notes
 
Collector
H. M. Tucker 
Collection #
202 
Other Collectors
 
Date Collected
Sep 1932 
Verbatim Date
 
Country
U.S.A. 
State or Province
Idaho 
County
Canyon 
Locality
Caldwell. 
Elevation
 
Coordinates
43.66306°, -116.68639° 
Site Description
 
Specimen Notes
Came in alfalfa seed. 
Phenology
Flowers & Fruits 
Origin
 
Cultivated?
No 
Imaged?
No 

Asteraceae
10. Ambrosia artemisiifolia L.
U.S.A., Washington, Kittitas County:
Along Yakima River at mouth of Taneum Creeek, 1/4 mile upstream from Burlington Northern Santa Fe Dudley railroad bridge.
Elev. 1695 ft. 47° 5.505' N, 120° 42.599' W; T19N R17E S33.
Level; dry river rocks below high water line. Other plants: Rosa woodsii, Prunus virginiana, Populus trichocarpa, Symphoricarpos alba. Flowers greenish; uncommon. Phenology: Fruits. Origin: Introduced.
WTU 364792; Barcode: WTU-V-014717
Don Knoke 947    5 Aug 2005
10. Ambrosia artemisiifolia L.
Database ID
156676 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
364792 
Barcode
WTU-V-014717 
Other Numbers
 
Family
Asteraceae 
Name on Specimen
Ambrosia artemisiifolia L. 
Accepted Name
Ambrosia artemisiifolia L. 
Annotation History
1. Ambrosia artemisiifolia L.
    Annotated by Don Knoke.  
Type Notes
 
Collector
Don Knoke 
Collection #
947 
Other Collectors
 
Date Collected
5 Aug 2005 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Kittitas 
Locality
Along Yakima River at mouth of Taneum Creeek, 1/4 mile upstream from Burlington Northern Santa Fe Dudley railroad bridge. 
Elevation
1695 ft. 
Coordinates
47° 5.505' N, 120° 42.599' W; T19N R17E S33 
Site Description
Level; dry river rocks below high water line. Other plants: Rosa woodsii, Prunus virginiana, Populus trichocarpa, Symphoricarpos alba. 
Specimen Notes
Flowers greenish; uncommon. 
Phenology
Fruits 
Origin
Introduced 
Cultivated?
No 
Imaged?
Yes 

Asteraceae
11. Ambrosia artemisiifolia L.
U.S.A., Washington, Chelan County:
Along US 97 circa 2.5 miles north of Chelan.
T27N R23E S9. Datum: WGS84. Coordinate uncertainty: 1000 meters. Georeferenced by WTU Staff. Coordinate Source: GeoLocate.
Sagebrush roadside. [Located in teaching collection]. Phenology: Flowers. Origin: Introduced.
WTU 328178; Barcode: WTU-V-005638
M. Arnot 682    25 Aug 1993
11. Ambrosia artemisiifolia L.
Database ID
166147 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
328178 
Barcode
WTU-V-005638 
Other Numbers
 
Family
Asteraceae 
Name on Specimen
Ambrosia artemisiifolia L. 
Accepted Name
Ambrosia artemisiifolia L. 
Annotation History
1. Ambrosia artemisiifolia L.  
Type Notes
 
Collector
M. Arnot 
Collection #
682 
Other Collectors
 
Date Collected
25 Aug 1993 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Chelan 
Locality
Along US 97 circa 2.5 miles north of Chelan. 
Elevation
 
Coordinates
T27N R23E S9 
Site Description
Sagebrush roadside. 
Specimen Notes
[Located in teaching collection]. 
Phenology
Flowers 
Origin
Introduced 
Cultivated?
No 
Imaged?
Yes 

Asteraceae
12. Ambrosia artemisiifolia L.
U.S.A., Oregon, Josephine County:
Bureau of Land Management land by Darlingtonia fen, near Eight Dollar Mountain.
Elev. 1350 ft. T38S R8W S28 SW of SW. Datum: WGS 84. Coordinate uncertainty: 500 meters. Georeferenced by John Bassett. Coordinate Source: Digital map.
Sprouting from discarded haybale on roadside. Weed. Phenology: Flowers. Origin: Introduced.
WTU 372433; Barcode: WTU-V-014718
P. F. Zika 11658    19 Jun 1992
12. Ambrosia artemisiifolia L.
Database ID
171009 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
372433 
Barcode
WTU-V-014718 
Other Numbers
 
Family
Asteraceae 
Name on Specimen
Ambrosia artemisiifolia L. 
Accepted Name
Ambrosia artemisiifolia L. 
Annotation History
1. Ambrosia artemisiifolia L.  
Type Notes
 
Collector
P. F. Zika 
Collection #
11658 
Other Collectors
 
Date Collected
19 Jun 1992 
Verbatim Date
 
Country
U.S.A. 
State or Province
Oregon 
County
Josephine 
Locality
Bureau of Land Management land by Darlingtonia fen, near Eight Dollar Mountain. 
Elevation
1350 ft. 
Coordinates
T38S R8W S28 SW of SW 
Site Description
Sprouting from discarded haybale on roadside. 
Specimen Notes
Weed. 
Phenology
Flowers 
Origin
Introduced 
Cultivated?
No 
Imaged?
Yes 

Asteraceae
13. Ambrosia artemisiifolia L.
U.S.A., Washington, Grant County:
Columbia River, near Beverly.
Elev. 490 ft. T16N R23E S28 SE. Datum: NAD 27. Coordinate uncertainty: 805 meters. Georeferenced by Ben Legler. Coordinate Source: TRS2LL.
Cobble gravel substrate along shore of Columbia River. Aspect: 210º. Slope 5%. Associated species: Lythrum salicaria, Aster occidentalis, Coreopsis tinctoria, Equisetum sp., Apocynum cannabinum. Phenology: Flowers. Origin: Introduced.
WTU 375852
Kathryn A. Beck 200826    19 Sep 2008
with Joe Arnett
13. Ambrosia artemisiifolia L.
Database ID
174757 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
375852 
Barcode
 
Other Numbers
 
Family
Asteraceae 
Name on Specimen
Ambrosia artemisiifolia L. 
Accepted Name
Ambrosia artemisiifolia L. 
Annotation History
1. Ambrosia artemisiifolia L.  
Type Notes
 
Collector
Kathryn A. Beck 
Collection #
200826 
Other Collectors
Joe Arnett 
Date Collected
19 Sep 2008 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Grant 
Locality
Columbia River, near Beverly. 
Elevation
490 ft. 
Coordinates
T16N R23E S28 SE 
Site Description
Cobble gravel substrate along shore of Columbia River. Aspect: 210º. Slope 5%. Associated species: Lythrum salicaria, Aster occidentalis, Coreopsis tinctoria, Equisetum sp., Apocynum cannabinum. 
Specimen Notes
 
Phenology
Flowers 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Asteraceae
14. Ambrosia artemisiifolia L.
U.S.A., Washington, Chelan County:
Columbia River. Riverfront Park in Wenatchee, Walla Walla swimming area, mud flat near the water by a foot bridge.
Elev. 700 ft. T23N R20E S34. Datum: NAD 27. Coordinate uncertainty: 805 meters. Georeferenced by Ben Legler. Coordinate Source: TRS2LL.
Sparse vegetation. Clumps of Poa annua, Juncus, Coryopsis, Bidens, Polygonum. 5% slope, north aspect. Phenology: Flowers & Fruits. Origin: Introduced.
WTU 389445
P. Camp 2211    19 Sep 2010
14. Ambrosia artemisiifolia L.
Database ID
185806 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
389445 
Barcode
 
Other Numbers
 
Family
Asteraceae 
Name on Specimen
Ambrosia artemisiifolia L. 
Accepted Name
Ambrosia artemisiifolia L. 
Annotation History
1. Ambrosia artemisiifolia L.  
Type Notes
 
Collector
P. Camp 
Collection #
2211 
Other Collectors
 
Date Collected
19 Sep 2010 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Chelan 
Locality
Columbia River. Riverfront Park in Wenatchee, Walla Walla swimming area, mud flat near the water by a foot bridge. 
Elevation
700 ft. 
Coordinates
T23N R20E S34 
Site Description
Sparse vegetation. Clumps of Poa annua, Juncus, Coryopsis, Bidens, Polygonum. 5% slope, north aspect. 
Specimen Notes
 
Phenology
Flowers & Fruits 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Asteraceae
15. Ambrosia artemisiifolia L.
U.S.A., Wisconsin, Waushara County:
North shore Pine Lake, Hancock.
44.132544°, -89.509792°. Datum: WGS 84. Coordinate uncertainty: 667 meters. Georeferenced by Maria Yousoufian. Coordinate Source: Digital Map.
Upper sandy beach. Phenology: Vegetative. Origin: Unknown.
WTU 401913; Barcode: WTU-V-009918
Clayton Haberman s.n.    3 Jul 2005
15. Ambrosia artemisiifolia L.
Database ID
2449246 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
401913 
Barcode
WTU-V-009918 
Other Numbers
 
Family
Asteraceae 
Name on Specimen
Ambrosia artemisiifolia L. 
Accepted Name
Ambrosia artemisiifolia L. 
Annotation History
1. Ambrosia artemisiifolia L.  
Type Notes
 
Collector
Clayton Haberman 
Collection #
s.n. 
Other Collectors
 
Date Collected
3 Jul 2005 
Verbatim Date
 
Country
U.S.A. 
State or Province
Wisconsin 
County
Waushara 
Locality
North shore Pine Lake, Hancock. 
Elevation
 
Coordinates
44.132544°, -89.509792° 
Site Description
Upper sandy beach. 
Specimen Notes
 
Phenology
Vegetative 
Origin
Unknown 
Cultivated?
No 
Imaged?
Yes 

Asteraceae
16. Ambrosia artemisiifolia L.
U.S.A., Washington, Kittitas County:
Under the bird feeder at 15021 North Thorp Highway.
Elev. 1680 ft. 47° 5.908' N, 120° 41.898' W; T19N R17E S34.
Level ground; moist, fine soil. Other plants: Berberis aquifolium, Amelanchier alnifolia, Symphoricarpos albus. Flowers green; only one plant. Phenology: Flowers. Origin: Native.
WTU 415245; Barcode: WTU-V-032582
Don Knoke 2333    29 Aug 2012
16. Ambrosia artemisiifolia L.
Database ID
2500943 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
415245 
Barcode
WTU-V-032582 
Other Numbers
 
Family
Asteraceae 
Name on Specimen
Ambrosia artemisiifolia L. 
Accepted Name
Ambrosia artemisiifolia L. 
Annotation History
1. Ambrosia artemisiifolia L.
    Annotated by Don Knoke, 29 2012. Sources: FNA.  
Type Notes
 
Collector
Don Knoke 
Collection #
2333 
Other Collectors
 
Date Collected
29 Aug 2012 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Kittitas 
Locality
Under the bird feeder at 15021 North Thorp Highway. 
Elevation
1680 ft. 
Coordinates
47° 5.908' N, 120° 41.898' W; T19N R17E S34 
Site Description
Level ground; moist, fine soil. Other plants: Berberis aquifolium, Amelanchier alnifolia, Symphoricarpos albus. 
Specimen Notes
Flowers green; only one plant. 
Phenology
Flowers 
Origin
Native 
Cultivated?
No 
Imaged?
Yes 

Asteraceae
17. Ambrosia artemisiifolia L.
U.S.A., Washington, Cowlitz County:
Shoulder of Dike Road ca 100 meters north of junction with Caples Road; 4.5 air km west of Woodland.
Elev. 8 m. 45.905953° N, 122.801434° W. Datum: WGS 84. Coordinate uncertainty: 14 meters. Georeferenced by Ben Legler. Coordinate Source: Digital Map.
Coarse, dry, gravelly soil on steeply sloping, raised road shoulder; full sun, sparsely vegetated; among farm fields. Single plant, much branched above base, ca 6 dm tall, taprooted; leaves opposite below, alternate above, twice pinnatifid; fruits obovate, with short conical spines to 0.5 mm. Phenology: Flowers and Fruits.
WTU
Ben Legler 13910    13 Sep 2015
17. Ambrosia artemisiifolia L.
Database ID
2782449 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
 
Barcode
 
Other Numbers
 
Family
Asteraceae 
Name on Specimen
Ambrosia artemisiifolia L. 
Accepted Name
Ambrosia artemisiifolia L. 
Annotation History
1. Ambrosia artemisiifolia L.
    Annotated by Ben Legler, 2015.  
Type Notes
 
Collector
Ben Legler 
Collection #
13910 
Other Collectors
 
Date Collected
13 Sep 2015 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Cowlitz 
Locality
Shoulder of Dike Road ca 100 meters north of junction with Caples Road; 4.5 air km west of Woodland. 
Elevation
8 m. 
Coordinates
45.905953° N, 122.801434° W 
Site Description
Coarse, dry, gravelly soil on steeply sloping, raised road shoulder; full sun, sparsely vegetated; among farm fields. 
Specimen Notes
Single plant, much branched above base, ca 6 dm tall, taprooted; leaves opposite below, alternate above, twice pinnatifid; fruits obovate, with short conical spines to 0.5 mm. 
Phenology
Flowers and Fruits 
Origin
 
Cultivated?
No 
Imaged?
Yes 

Asteraceae
18. Ambrosia artemisiifolia L.
U.S.A., Washington, Chelan County:
Wenatchee valley. Path along the irrigation ditch above the grave yard.
Elev. 1000 ft. 47.42346°, -120.310349°. Datum: WGS 84. Coordinate uncertainty: 4735 meters. Georeferenced by Crystal Shin. Coordinate Source: GeoLocate.
Associated with weedy grasses. Phenology: Flowers. Origin: Introduced.
WTU 405108; Barcode: WTU-V-013531
P. Camp 3331    1 Sep 2013
18. Ambrosia artemisiifolia L.
Database ID
2787374 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
405108 
Barcode
WTU-V-013531 
Other Numbers
 
Family
Asteraceae 
Name on Specimen
Ambrosia artemisiifolia L. 
Accepted Name
Ambrosia artemisiifolia L. 
Annotation History
1. Ambrosia artemisiifolia L.  
Type Notes
 
Collector
P. Camp 
Collection #
3331 
Other Collectors
 
Date Collected
1 Sep 2013 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Chelan 
Locality
Wenatchee valley. Path along the irrigation ditch above the grave yard. 
Elevation
1000 ft. 
Coordinates
47.42346°, -120.310349° 
Site Description
Associated with weedy grasses. 
Specimen Notes
 
Phenology
Flowers 
Origin
Introduced 
Cultivated?
No 
Imaged?
Yes 

Asteraceae
19. Ambrosia artemisiifolia L.
U.S.A., Oregon, Curry County:
Half Moon Bar, west bank of Rogue River.
Elev. 80 m. 42.6935° N, 123.9434° W. Coordinate Source: Specimen Label.
On dry sunny sand and cobble, over metavolcanics, with Hypericum perforatum, Centaurea, Alnus rhombifolia. Common. Phenology: Flowers. Origin: Introduced.
WTU 405768; Barcode: WTU-V-18064
P. F. Zika 27328    7 Sep 2015
with R. E. Brainerd
19. Ambrosia artemisiifolia L.
Database ID
2800864 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
405768 
Barcode
WTU-V-18064 
Other Numbers
 
Family
Asteraceae 
Name on Specimen
Ambrosia artemisiifolia L. 
Accepted Name
Ambrosia artemisiifolia L. 
Annotation History
1. Ambrosia artemisiifolia L.  
Type Notes
 
Collector
P. F. Zika 
Collection #
27328 
Other Collectors
R. E. Brainerd 
Date Collected
7 Sep 2015 
Verbatim Date
 
Country
U.S.A. 
State or Province
Oregon 
County
Curry 
Locality
Half Moon Bar, west bank of Rogue River. 
Elevation
80 m. 
Coordinates
42.6935° N, 123.9434° W 
Site Description
On dry sunny sand and cobble, over metavolcanics, with Hypericum perforatum, Centaurea, Alnus rhombifolia. 
Specimen Notes
Common. 
Phenology
Flowers 
Origin
Introduced 
Cultivated?
No 
Imaged?
Yes 

Asteraceae
20. Ambrosia artemisiifolia L.
U.S.A., Washington, Grant County:
Shore of Columbia River 2/3 mile south of mouth of Crab Creek.
Elev. 500 ft. 46° 48' 23" N, 119° 55' 25" W. Datum: WGS 84.
Dry basaltic scabrock and moist river bank, with Lythrum salicaria. Plants annual, much-branched, to 50 cm tall. Phenology: Flowers.
WTU
Ben Legler 2988    21 Aug 2005
20. Ambrosia artemisiifolia L.
Database ID
2801431 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
 
Barcode
 
Other Numbers
 
Family
Asteraceae 
Name on Specimen
Ambrosia artemisiifolia L. 
Accepted Name
Ambrosia artemisiifolia L. 
Annotation History
1. Ambrosia artemisiifolia L.
    Annotated by Ben Legler, 11 2021.  
Type Notes
 
Collector
Ben Legler 
Collection #
2988 
Other Collectors
 
Date Collected
21 Aug 2005 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Grant 
Locality
Shore of Columbia River 2/3 mile south of mouth of Crab Creek. 
Elevation
500 ft. 
Coordinates
46° 48' 23" N, 119° 55' 25" W 
Site Description
Dry basaltic scabrock and moist river bank, with Lythrum salicaria. 
Specimen Notes
Plants annual, much-branched, to 50 cm tall. 
Phenology
Flowers 
Origin
 
Cultivated?
No 
Imaged?
No 

Asteraceae
21. Ambrosia artemisiifolia L.
U.S.A., Washington, Stevens County:
No locality given.
48.383272°, -117.843263°. Coordinate uncertainty: 74000 meters. Georeferenced by Joseph Stormer.
Native annual of ditches and waste areas. Origin: Introduced.
WTU 405708; Barcode: WTU-V-016847
Sue Winterowd s.n.     2008
with Cindy Jennings
21. Ambrosia artemisiifolia L.
Database ID
3095464 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
405708 
Barcode
WTU-V-016847 
Other Numbers
 
Family
Asteraceae 
Name on Specimen
Ambrosia artemisiifolia L. 
Accepted Name
Ambrosia artemisiifolia L. 
Annotation History
1. Ambrosia artemisiifolia L.  
Type Notes
 
Collector
Sue Winterowd 
Collection #
s.n. 
Other Collectors
Cindy Jennings 
Date Collected
2008 
Verbatim Date
Fall 
Country
U.S.A. 
State or Province
Washington 
County
Stevens 
Locality
No locality given. 
Elevation
 
Coordinates
48.383272°, -117.843263° 
Site Description
Native annual of ditches and waste areas. 
Specimen Notes
 
Phenology
 
Origin
Introduced 
Cultivated?
No 
Imaged?
Yes 

Asteraceae
22. Ambrosia artemisiifolia L.
U.S.A., Nevada, Elko County:
Floodplains of the Humboldt River near the bridge on Highway 20 from Carlin to Eureka.
Elev. 5480 ft. T33N R52E S33. Datum: WGS 84. Coordinate uncertainty: 1138 meters. Georeferenced by Dan Post. Coordinate Source: Calc. from TRS.
Plants growing in disturbed areas along the banks of the river. Leaf tissue fragment removed for genetic analysis, 3/5/2010, Michael D. Martin, Johns Hopkins University/ Smithsonian Institution. Phenology: Flowers.
WTU 304971; Barcode: WTU-V-014720
Arnold Tiehm 9317    26 Aug 1984
with Margaret Williams
22. Ambrosia artemisiifolia L.
Database ID
3186384 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
304971 
Barcode
WTU-V-014720 
Other Numbers
 
Family
Asteraceae 
Name on Specimen
Ambrosia artemisiifolia L. 
Accepted Name
Ambrosia artemisiifolia L. 
Annotation History
1. Ambrosia artemisiifolia L.  
Type Notes
 
Collector
Arnold Tiehm 
Collection #
9317 
Other Collectors
Margaret Williams 
Date Collected
26 Aug 1984 
Verbatim Date
 
Country
U.S.A. 
State or Province
Nevada 
County
Elko 
Locality
Floodplains of the Humboldt River near the bridge on Highway 20 from Carlin to Eureka. 
Elevation
5480 ft. 
Coordinates
T33N R52E S33 
Site Description
Plants growing in disturbed areas along the banks of the river. 
Specimen Notes
Leaf tissue fragment removed for genetic analysis, 3/5/2010, Michael D. Martin, Johns Hopkins University/ Smithsonian Institution. 
Phenology
Flowers 
Origin
 
Cultivated?
No 
Imaged?
Yes 

Asteraceae
23. Ambrosia artemisiifolia L.
U.S.A., Wyoming, Big Horn County:
30 miles northeast of Lovell.
44.992526°, -108.225504°. Datum: WGS 84. Coordinate uncertainty: 10000 meters. Georeferenced by Dan Post. Coordinate Source: Digital Map.
Roadsides. Leaf tissue fragment removed for genetic analysis, 3/5/2010, Michael D. Martin, Johns Hopkins University/ Smithsonian Institution. Phenology: Flowers.
WTU 235717; Barcode: WTU-V-014721
Robert L. Tresler 324    27 Jun 1966
23. Ambrosia artemisiifolia L.
Database ID
3186385 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
235717 
Barcode
WTU-V-014721 
Other Numbers
 
Family
Asteraceae 
Name on Specimen
Ambrosia artemisiifolia L. 
Accepted Name
Ambrosia artemisiifolia L. 
Annotation History
1. Ambrosia artemisiifolia L.
    Annotated by C. L. Porter.  
Type Notes
 
Collector
Robert L. Tresler 
Collection #
324 
Other Collectors
 
Date Collected
27 Jun 1966 
Verbatim Date
 
Country
U.S.A. 
State or Province
Wyoming 
County
Big Horn 
Locality
30 miles northeast of Lovell. 
Elevation
 
Coordinates
44.992526°, -108.225504° 
Site Description
Roadsides. 
Specimen Notes
Leaf tissue fragment removed for genetic analysis, 3/5/2010, Michael D. Martin, Johns Hopkins University/ Smithsonian Institution. 
Phenology
Flowers 
Origin
 
Cultivated?
No 
Imaged?
Yes 

Asteraceae
24. Ambrosia artemisiifolia L.
U.S.A., Wyoming, Natrona County:
At Natrona County Airport.
T34N R80W S22. Datum: WGS 84. Coordinate uncertainty: 1138 meters. Georeferenced by Dan Post. Coordinate Source: Calc. from TRS.
Growing in dry soil beside railroad tracks. Leaf tissue fragment removed for genetic analysis, 3/5/2010, Michael D. Martin, Johns Hopkins University/ Smithsonian Institution. Phenology: Flowers.
WTU 268302; Barcode: WTU-V-014722
Thomas Nelson 106    10 Aug 1970
24. Ambrosia artemisiifolia L.
Database ID
3186386 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
268302 
Barcode
WTU-V-014722 
Other Numbers
 
Family
Asteraceae 
Name on Specimen
Ambrosia artemisiifolia L. 
Accepted Name
Ambrosia artemisiifolia L. 
Annotation History
1. Ambrosia artemisiifolia L.  
Type Notes
 
Collector
Thomas Nelson 
Collection #
106 
Other Collectors
 
Date Collected
10 Aug 1970 
Verbatim Date
 
Country
U.S.A. 
State or Province
Wyoming 
County
Natrona 
Locality
At Natrona County Airport. 
Elevation
 
Coordinates
T34N R80W S22 
Site Description
Growing in dry soil beside railroad tracks. 
Specimen Notes
Leaf tissue fragment removed for genetic analysis, 3/5/2010, Michael D. Martin, Johns Hopkins University/ Smithsonian Institution. 
Phenology
Flowers 
Origin
 
Cultivated?
No 
Imaged?
Yes 

Asteraceae
25. Ambrosia artemisiifolia L.
U.S.A., Utah, Utah County:
Disturbed sites along Thistle Creek, 4 miles north of Thistle.
40.038808°, -111.531891°. Datum: WGS 84. Coordinate uncertainty: 1500 meters. Georeferenced by Dan Post. Coordinate Source: Digital Map.
Leaf tissue fragment removed for genetic analysis, 3/5/2010, Michael D. Martin, Johns Hopkins University/ Smithsonian Institution. Phenology: Flowers.
WTU 150148; Barcode: WTU-V-014723
A. R. Kruckeberg 2861    29 Aug 1951
25. Ambrosia artemisiifolia L.
Database ID
3186387 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
150148 
Barcode
WTU-V-014723 
Other Numbers
 
Family
Asteraceae 
Name on Specimen
Ambrosia artemisiifolia L. 
Accepted Name
Ambrosia artemisiifolia L. 
Annotation History
1. Ambrosia artemisiifolia L.  
Type Notes
 
Collector
A. R. Kruckeberg 
Collection #
2861 
Other Collectors
 
Date Collected
29 Aug 1951 
Verbatim Date
 
Country
U.S.A. 
State or Province
Utah 
County
Utah 
Locality
Disturbed sites along Thistle Creek, 4 miles north of Thistle. 
Elevation
 
Coordinates
40.038808°, -111.531891° 
Site Description
 
Specimen Notes
Leaf tissue fragment removed for genetic analysis, 3/5/2010, Michael D. Martin, Johns Hopkins University/ Smithsonian Institution. 
Phenology
Flowers 
Origin
 
Cultivated?
No 
Imaged?
Yes 

Asteraceae
26. Ambrosia artemisiifolia L.
U.S.A., Oregon, Benton County:
Benton County Fairgrounds, edge of parking lot on south side of fairgrounds just north of Reservoir Road.
Elev. 320 ft. 44.56539° N, 123.31557° W. Coordinate Source: Specimen Label.
Gravel parking lot.¶Associated taxa: Daucus carota, Leontodon taraxacoides, Lotus corniculatus, Schedonorus arundinaceus. Plants somewhat aromatic. Only male flowers observed in this population. Phenology: Flowers. Origin: Introduced.
WTU 416796; Barcode: WTU-V-036421
R.E. Brainerd 2465    21 Sep 2016
26. Ambrosia artemisiifolia L.
Database ID
3187727 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
416796 
Barcode
WTU-V-036421 
Other Numbers
 
Family
Asteraceae 
Name on Specimen
Ambrosia artemisiifolia L. 
Accepted Name
Ambrosia artemisiifolia L. 
Annotation History
1. Ambrosia artemisiifolia L.  
Type Notes
 
Collector
R.E. Brainerd 
Collection #
2465 
Other Collectors
 
Date Collected
21 Sep 2016 
Verbatim Date
 
Country
U.S.A. 
State or Province
Oregon 
County
Benton 
Locality
Benton County Fairgrounds, edge of parking lot on south side of fairgrounds just north of Reservoir Road. 
Elevation
320 ft. 
Coordinates
44.56539° N, 123.31557° W 
Site Description
Gravel parking lot.¶Associated taxa: Daucus carota, Leontodon taraxacoides, Lotus corniculatus, Schedonorus arundinaceus. 
Specimen Notes
Plants somewhat aromatic. Only male flowers observed in this population. 
Phenology
Flowers 
Origin
Introduced 
Cultivated?
No 
Imaged?
Yes 

Asteraceae
27. Ambrosia artemisiifolia L.
U.S.A., Oregon, Multnomah County:
Columbia Slough. South shore of main channel Columbia Slough.
45.6159° N, 122.7631° W. Coordinate Source: Specimen Label.
Growing on perched muddy bank. Phalaris arundinacea, Helenium, Bidens frondosa, Persicaria hydropiperoides, Populus trichocarpa, Gratiola neglecta. Few plants. Occasional in slough. Phenology: Flowers and Fruits.
WTU 417578; Barcode: WTU-V-038060
Dominic Maze 346    28 Sep 2016
27. Ambrosia artemisiifolia L.
Database ID
3210023 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
417578 
Barcode
WTU-V-038060 
Other Numbers
 
Family
Asteraceae 
Name on Specimen
Ambrosia artemisiifolia L. 
Accepted Name
Ambrosia artemisiifolia L. 
Annotation History
1. Ambrosia artemisiifolia L.  
Type Notes
 
Collector
Dominic Maze 
Collection #
346 
Other Collectors
 
Date Collected
28 Sep 2016 
Verbatim Date
 
Country
U.S.A. 
State or Province
Oregon 
County
Multnomah 
Locality
Columbia Slough. South shore of main channel Columbia Slough. 
Elevation
 
Coordinates
45.6159° N, 122.7631° W 
Site Description
Growing on perched muddy bank. Phalaris arundinacea, Helenium, Bidens frondosa, Persicaria hydropiperoides, Populus trichocarpa, Gratiola neglecta. 
Specimen Notes
Few plants. Occasional in slough. 
Phenology
Flowers and Fruits 
Origin
 
Cultivated?
No 
Imaged?
Yes 

Asteraceae
28. Ambrosia artemisiifolia L.
U.S.A., Washington, Stevens County:
At edge of lot west of Hudesman Lane at the northwest end of Colville.
Elev. 1560 ft. 48.55871° N, 117.92284° W. Coordinate Source: Specimen Label.
[Original label has Artemisia artemisiifolia L.] Phenology: Flowers. Origin: Introduced.
WTU 418469; Barcode: WTU-V-039159
Jeff Walker 1085    27 Aug 2018
28. Ambrosia artemisiifolia L.
Database ID
3234798 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
418469 
Barcode
WTU-V-039159 
Other Numbers
 
Family
Asteraceae 
Name on Specimen
Ambrosia artemisiifolia L. 
Accepted Name
Ambrosia artemisiifolia L. 
Annotation History
1. Ambrosia artemisiifolia L.
    Remarks: [Original label has Artemisia artemisiifolia L.] 
Type Notes
 
Collector
Jeff Walker 
Collection #
1085 
Other Collectors
 
Date Collected
27 Aug 2018 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Stevens 
Locality
At edge of lot west of Hudesman Lane at the northwest end of Colville. 
Elevation
1560 ft. 
Coordinates
48.55871° N, 117.92284° W 
Site Description
 
Specimen Notes
[Original label has Artemisia artemisiifolia L.] 
Phenology
Flowers 
Origin
Introduced 
Cultivated?
No 
Imaged?
Yes 

Asteraceae
29. Ambrosia artemisiifolia L.
U.S.A., Oregon, Morrow County:
Shoreline south of Longwalk Island, about 300 meters north of the west end of McCormack Slough, 2.3 air kilometers southeast of Rock Island in Lake Umatilla, Umatilla National Wildlife Refuge.
Elev. 80 m. 45.899089° N, 119.602639° W. Datum: WGS 84. Coordinate Source: Specimen Label.
Common, sand bank near water, full sun over basalt, with Bromus tectorum, Heterotheca villosa. Taprooted annual. Phenology: Flowers. Origin: Introduced.
WTU 419108; Barcode: WTU-V-041576
Peter W. Dunwiddie PWD 18-457    13 Aug 2018
with Peter F. Zika
29. Ambrosia artemisiifolia L.
Database ID
3238539 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
419108 
Barcode
WTU-V-041576 
Other Numbers
 
Family
Asteraceae 
Name on Specimen
Ambrosia artemisiifolia L. 
Accepted Name
Ambrosia artemisiifolia L. 
Annotation History
1. Ambrosia artemisiifolia L.  
Type Notes
 
Collector
Peter W. Dunwiddie 
Collection #
PWD 18-457 
Other Collectors
Peter F. Zika 
Date Collected
13 Aug 2018 
Verbatim Date
 
Country
U.S.A. 
State or Province
Oregon 
County
Morrow 
Locality
Shoreline south of Longwalk Island, about 300 meters north of the west end of McCormack Slough, 2.3 air kilometers southeast of Rock Island in Lake Umatilla, Umatilla National Wildlife Refuge.  
Elevation
80 m. 
Coordinates
45.899089° N, 119.602639° W 
Site Description
Common, sand bank near water, full sun over basalt, with Bromus tectorum, Heterotheca villosa.  
Specimen Notes
Taprooted annual.  
Phenology
Flowers 
Origin
Introduced 
Cultivated?
No 
Imaged?
Yes 

Asteraceae
30. Ambrosia artemisiifolia L.
U.S.A., Washington, Chelan County:
Entiat Park along the Columbia River. South end of parking area.
Elev. 216 m. 47.66423° N, 120.22292° W. Datum: WGS 84. Coordinate uncertainty: 50 meters. Coordinate Source: GPS.
Disturbed riverbank area and adjacent roadside; Ulmus pumila, Ericameria nauseosa and Centaurea sp. common. Scattered in disturbed soil; taprooted annual to 50 cm tall. Phenology: Flowers and Fruits. Origin: Introduced.
WTU 420417; Barcode: WTU-V-045380
David Giblin 6479    2 Oct 2018
30. Ambrosia artemisiifolia L.
Database ID
3247222 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
420417 
Barcode
WTU-V-045380 
Other Numbers
 
Family
Asteraceae 
Name on Specimen
Ambrosia artemisiifolia L. 
Accepted Name
Ambrosia artemisiifolia L. 
Annotation History
1. Ambrosia artemisiifolia L.
    Annotated by David Giblin, 11 2019. Sources: Flora PNW, 2nd.  
Type Notes
 
Collector
David Giblin 
Collection #
6479 
Other Collectors
 
Date Collected
2 Oct 2018 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Chelan 
Locality
Entiat Park along the Columbia River. South end of parking area. 
Elevation
216 m. 
Coordinates
47.66423° N, 120.22292° W 
Site Description
Disturbed riverbank area and adjacent roadside; Ulmus pumila, Ericameria nauseosa and Centaurea sp. common. 
Specimen Notes
Scattered in disturbed soil; taprooted annual to 50 cm tall. 
Phenology
Flowers and Fruits 
Origin
Introduced 
Cultivated?
No 
Imaged?
Yes 

Asteraceae
31. Ambrosia artemisiifolia L.
U.S.A., Oregon, Morrow County:
Umatilla National Wildlife Refuge, shoreline south of Longwalk Island.
45.899089° N, 119.602639° W. Georeferenced by Crystal Shin. Coordinate Source: Google Earth.
Sand bank near water, with Heterotheca villosa, Bromus tectorum. Common, taprooted annual.
WTU
Peter F. Zika PWD-18-457    13 Aug 2018
with Peter Dunwiddie
31. Ambrosia artemisiifolia L.
Database ID
3279684 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
 
Barcode
 
Other Numbers
 
Family
Asteraceae 
Name on Specimen
Ambrosia artemisiifolia L. 
Accepted Name
Ambrosia artemisiifolia L. 
Annotation History
1. Ambrosia artemisiifolia L.
    Annotated by Peter F. Zika, 2019. Sources: Flora PNW, 2nd.  
Type Notes
 
Collector
Peter F. Zika 
Collection #
PWD-18-457 
Other Collectors
Peter Dunwiddie 
Date Collected
13 Aug 2018 
Verbatim Date
 
Country
U.S.A. 
State or Province
Oregon 
County
Morrow 
Locality
Umatilla National Wildlife Refuge, shoreline south of Longwalk Island. 
Elevation
 
Coordinates
45.899089° N, 119.602639° W 
Site Description
Sand bank near water, with Heterotheca villosa, Bromus tectorum. 
Specimen Notes
Common, taprooted annual. 
Phenology
 
Origin
 
Cultivated?
No 
Imaged?
No 

Asteraceae
32. Ambrosia artemisiifolia L.
U.S.A., Washington, Okanogan County:
Okanogan River approximately 2 kms south of Oroville. Public fishing access area adjacent to Highway 97 bridge over river.
Elev. 220 m. 48.10262° N, 119.70874° W. Datum: WGS 84. Coordinate uncertainty: 20 meters. Coordinate Source: GPS.
Shallow water of river and adjacent bank. Locally common in disturbed shoreline; annual. Phenology: Flowers. Origin: Introduced.
WTU
David Giblin 7246    17 Sep 2019
32. Ambrosia artemisiifolia L.
Database ID
3453556 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
 
Barcode
 
Other Numbers
 
Family
Asteraceae 
Name on Specimen
Ambrosia artemisiifolia L. 
Accepted Name
Ambrosia artemisiifolia L. 
Annotation History
1. Ambrosia artemisiifolia L.
    Annotated by David Giblin, 7 2020. Sources: Flora PNW, 2nd.  
Type Notes
 
Collector
David Giblin 
Collection #
7246 
Other Collectors
 
Date Collected
17 Sep 2019 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Okanogan 
Locality
Okanogan River approximately 2 kms south of Oroville. Public fishing access area adjacent to Highway 97 bridge over river. 
Elevation
220 m. 
Coordinates
48.10262° N, 119.70874° W 
Site Description
Shallow water of river and adjacent bank. 
Specimen Notes
Locally common in disturbed shoreline; annual. 
Phenology
Flowers 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Tab-delimited Text File:
Download all 32 records as a tab-delimited text file. This file can be opened in Excel and viewed as a spreadsheet, or imported into a database or GIS software. Fields are delimited by a tab character, and not enclosed in quotes. The character encoding is UTF-8 and line endings are Windows-style (CR+LF).

PDF Document:
Download all 32 records as a PDF document, with the records formatted to resemble specimen labels. Thumbnail views of images are included for imaged specimens.

Google Earth KML File:
Download all 32 records as a Google Earth KML file. This file can be opened in Google Earth to visualize the spatial locations of specimens.

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.