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44 matching records found.
Label Query: Genus = "Tribulus", Species = "terrestris"
Zygophyllaceae
1. Tribulus terrestris L.
U.S.A., Washington, Yakima County:
4 miles west of Grandview. [Label locality listed as Benton county, actual locality in Yakima county according to Georeferenced point.]
Elev. 700 ft. 46.251079°, -119.984309°. Datum: WGS 84. Coordinate uncertainty: 10000 meters. Georeferenced by WTU Staff. Coordinate Source: GeoLocate.
Phenology: Flowers & Fruits. Origin: Introduced.
WTU 153438
Carl Nelson s.n.    15 Jul 1954
1. Tribulus terrestris L.
Database ID
11698 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
153438 
Barcode
 
Other Numbers
 
Family
Zygophyllaceae 
Name on Specimen
Tribulus terrestris L. 
Accepted Name
Tribulus terrestris L. 
Annotation History
1. Tribulus terrestris L.  
Type Notes
 
Collector
Carl Nelson 
Collection #
s.n. 
Other Collectors
 
Date Collected
15 Jul 1954 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Yakima 
Locality
4 miles west of Grandview. [Label locality listed as Benton county, actual locality in Yakima county according to Georeferenced point.] 
Elevation
700 ft. 
Coordinates
46.251079°, -119.984309° 
Site Description
 
Specimen Notes
 
Phenology
Flowers & Fruits 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Zygophyllaceae
2. Tribulus terrestris L.
U.S.A., Washington, Chelan County:
Along Hwy 97A north of Rocky Reach Dam.
T24N R20E S13. Datum: WGS84. Coordinate uncertainty: 32500 meters. Georeferenced by WTU Staff. Coordinate Source: Georeferenced.
Gravelly roadside. With Euphorbia glyptosperma, Convolvulus arvensis, grass spp., and Centaurea sp. Phenology: Fruits. Origin: Introduced.
WTU 324284
Mildred Arnot 540    19 Aug 1992
with G. Patrick
2. Tribulus terrestris L.
Database ID
11699 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
324284 
Barcode
 
Other Numbers
 
Family
Zygophyllaceae 
Name on Specimen
Tribulus terrestris L. 
Accepted Name
Tribulus terrestris L. 
Annotation History
1. Tribulus terrestris L.  
Type Notes
 
Collector
Mildred Arnot 
Collection #
540 
Other Collectors
G. Patrick 
Date Collected
19 Aug 1992 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Chelan 
Locality
Along Hwy 97A north of Rocky Reach Dam. 
Elevation
 
Coordinates
T24N R20E S13 
Site Description
Gravelly roadside. 
Specimen Notes
With Euphorbia glyptosperma, Convolvulus arvensis, grass spp., and Centaurea sp. 
Phenology
Fruits 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Zygophyllaceae
3. Tribulus terrestris L.
U.S.A., Washington, Klickitat County:
Along State Highway 14, 0.7 miles east of Lyle.
Elev. 108 ft. T2N R12E S2. Datum: WGS 84. Coordinate uncertainty: 500 meters. Georeferenced by John Bassett. Coordinate Source: Nat. Geog. TOPO!.
Weedy area along railroad tracks with Sorghum, Verbascum, Medicago, Amaranthus, Euphorbia, Centaurea, Salsola. Plants taprooted annuals; prostrate, with yellow flowers. Phenology: Fruits. Origin: Introduced.
WTU 324078
Richard R. Halse 3783    24 Oct 1988
3. Tribulus terrestris L.
Database ID
11700 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
324078 
Barcode
 
Other Numbers
 
Family
Zygophyllaceae 
Name on Specimen
Tribulus terrestris L. 
Accepted Name
Tribulus terrestris L. 
Annotation History
1. Tribulus terrestris L.  
Type Notes
 
Collector
Richard R. Halse 
Collection #
3783 
Other Collectors
 
Date Collected
24 Oct 1988 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Klickitat 
Locality
Along State Highway 14, 0.7 miles east of Lyle. 
Elevation
108 ft. 
Coordinates
T2N R12E S2 
Site Description
Weedy area along railroad tracks with Sorghum, Verbascum, Medicago, Amaranthus, Euphorbia, Centaurea, Salsola. 
Specimen Notes
Plants taprooted annuals; prostrate, with yellow flowers. 
Phenology
Fruits 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Zygophyllaceae
4. Tribulus terrestris L.
U.S.A., Washington, Whitman County:
Snake River at Granite Point, 4 miles above Wawawai.
46.60444°, -117.35806°. Datum: WGS 84. Coordinate uncertainty: 5000 meters. Georeferenced by WTU Staff. Coordinate Source: GeoLocate.
Sandy riverbank. Phenology: Fruits. Origin: Introduced.
WTU 183945
Xerpha M. Gaines 334    8 Oct 1949
with Mary Hafercamp
4. Tribulus terrestris L.
Database ID
11701 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
183945 
Barcode
 
Other Numbers
 
Family
Zygophyllaceae 
Name on Specimen
Tribulus terrestris L. 
Accepted Name
Tribulus terrestris L. 
Annotation History
1. Tribulus terrestris L.  
Type Notes
 
Collector
Xerpha M. Gaines 
Collection #
334 
Other Collectors
Mary Hafercamp 
Date Collected
8 Oct 1949 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Whitman 
Locality
Snake River at Granite Point, 4 miles above Wawawai. 
Elevation
 
Coordinates
46.60444°, -117.35806° 
Site Description
Sandy riverbank. 
Specimen Notes
 
Phenology
Fruits 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Zygophyllaceae
5. Tribulus terrestris L.
U.S.A., Washington, Yakima County:
South bank of Naches River, near confluence with Yakima River.
Elev. 40 ft. 46° 38' N, 120° 31' W.
Yellow flowers, thorny fruit. At roadside and on path. With Salsola, Poa bulbosa, Centaurea. Phenology: Flowers & Fruits. Origin: Introduced.
WTU 344489
Sarah Gage G&R 856    3 Oct 1992
with Sharon Rodman
5. Tribulus terrestris L.
Database ID
11702 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
344489 
Barcode
 
Other Numbers
 
Family
Zygophyllaceae 
Name on Specimen
Tribulus terrestris L. 
Accepted Name
Tribulus terrestris L. 
Annotation History
1. Tribulus terrestris L.  
Type Notes
 
Collector
Sarah Gage 
Collection #
G&R 856 
Other Collectors
Sharon Rodman 
Date Collected
3 Oct 1992 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Yakima 
Locality
South bank of Naches River, near confluence with Yakima River. 
Elevation
40 ft. 
Coordinates
46° 38' N, 120° 31' W 
Site Description
 
Specimen Notes
Yellow flowers, thorny fruit. At roadside and on path. With Salsola, Poa bulbosa, Centaurea. 
Phenology
Flowers & Fruits 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Zygophyllaceae
6. Tribulus terrestris L.
U.S.A., Washington, Kittitas County:
Along North Thorp Highway _mile from junction with State Route 10.
Elev. 1735 ft. 47° 6.121' N, 120° 42.383' W; T19N R17E S34.
Sandy soil with gravel. Other plants: Solidago canadensis, Epilobium paniculatum, Prunus virginana. Flowers yellow. Uncommon. Phenology: Flowers. Origin: Introduced.
WTU 359631
Don Knoke 397    7 Aug 2003
6. Tribulus terrestris L.
Database ID
71388 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
359631 
Barcode
 
Other Numbers
 
Family
Zygophyllaceae 
Name on Specimen
Tribulus terrestris L. 
Accepted Name
Tribulus terrestris L. 
Annotation History
1. Tribulus terrestris L.
    Annotated by Don Knoke.  
Type Notes
 
Collector
Don Knoke 
Collection #
397 
Other Collectors
 
Date Collected
7 Aug 2003 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Kittitas 
Locality
Along North Thorp Highway _mile from junction with State Route 10. 
Elevation
1735 ft. 
Coordinates
47° 6.121' N, 120° 42.383' W; T19N R17E S34 
Site Description
Sandy soil with gravel. Other plants: Solidago canadensis, Epilobium paniculatum, Prunus virginana. 
Specimen Notes
Flowers yellow. Uncommon. 
Phenology
Flowers 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Zygophyllaceae
7. Tribulus terrestris L.
U.S.A., Washington, Klickitat County:
Columbia Hills State Park, Horsethief Lake.
T2N R14E S19. Datum: NAD 27. Coordinate uncertainty: 805 meters. Georeferenced by Ben Legler. Coordinate Source: TRS2LL.
Found at entrance to camping area next to road, growing with Malva and Erodium cicutarium. Park staff pulls this species regularly from park premises, flowers yellow. Phenology: Flowers. Origin: Introduced.
WTU 360411
Jeff Walker 182    12 Jun 2004
7. Tribulus terrestris L.
Database ID
77510 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
360411 
Barcode
 
Other Numbers
 
Family
Zygophyllaceae 
Name on Specimen
Tribulus terrestris L. 
Accepted Name
Tribulus terrestris L. 
Annotation History
1. Tribulus terrestris L.
    Annotated by Jeff Walker.  
Type Notes
 
Collector
Jeff Walker 
Collection #
182 
Other Collectors
 
Date Collected
12 Jun 2004 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Klickitat 
Locality
Columbia Hills State Park, Horsethief Lake. 
Elevation
 
Coordinates
T2N R14E S19 
Site Description
Found at entrance to camping area next to road, growing with Malva and Erodium cicutarium. 
Specimen Notes
Park staff pulls this species regularly from park premises, flowers yellow. 
Phenology
Flowers 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Zygophyllaceae
8. Tribulus terrestris L.
U.S.A., Idaho, Owyhee County:
At Sucker Creek, one-half mile west of Homedale.
43.61778°, -116.93278°. Datum: WGS 84. Coordinate uncertainty: 10000 meters. Georeferenced by WTU Staff. Coordinate Source: GeoLocate.
Common, dry sandy soil. Phenology: Fertile. Origin: Introduced.
WTU 303450
William H. Baker 8451    8 Aug 1951
8. Tribulus terrestris L.
Database ID
102566 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
303450 
Barcode
 
Other Numbers
 
Family
Zygophyllaceae 
Name on Specimen
Tribulus terrestris L. 
Accepted Name
Tribulus terrestris L. 
Annotation History
1. Tribulus terrestris L.  
Type Notes
 
Collector
William H. Baker 
Collection #
8451 
Other Collectors
 
Date Collected
8 Aug 1951 
Verbatim Date
 
Country
U.S.A. 
State or Province
Idaho 
County
Owyhee 
Locality
At Sucker Creek, one-half mile west of Homedale. 
Elevation
 
Coordinates
43.61778°, -116.93278° 
Site Description
Common, dry sandy soil. 
Specimen Notes
 
Phenology
Fertile 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Zygophyllaceae
9. Tribulus terrestris L.
U.S.A., Idaho, Washington County:
1 mile southeast of Weiser.
44.240868°, -116.954032°. Datum: WGS 84. Coordinate uncertainty: 1000 meters. Georeferenced by WTU Staff. Coordinate Source: GeoLocate.
Dry open grassy flats. Phenology: Fertile. Origin: Introduced.
WTU 303346
William H. Baker 7822    8 Jul 1951
9. Tribulus terrestris L.
Database ID
102571 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
303346 
Barcode
 
Other Numbers
 
Family
Zygophyllaceae 
Name on Specimen
Tribulus terrestris L. 
Accepted Name
Tribulus terrestris L. 
Annotation History
1. Tribulus terrestris L.  
Type Notes
 
Collector
William H. Baker 
Collection #
7822 
Other Collectors
 
Date Collected
8 Jul 1951 
Verbatim Date
 
Country
U.S.A. 
State or Province
Idaho 
County
Washington 
Locality
1 mile southeast of Weiser. 
Elevation
 
Coordinates
44.240868°, -116.954032° 
Site Description
Dry open grassy flats. 
Specimen Notes
 
Phenology
Fertile 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Zygophyllaceae
10. Tribulus terrestris L.
U.S.A., Idaho, Canyon County:
10 miles south of Nampa.
43.39598°, -116.5625°. Datum: WGS 84. Coordinate uncertainty: 1000 meters. Georeferenced by WTU Staff. Coordinate Source: GeoLocate.
Frequent. Phenology: Fertile. Origin: Introduced.
WTU 303348
William H. Baker 8345    29 Jul 1951
10. Tribulus terrestris L.
Database ID
102572 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
303348 
Barcode
 
Other Numbers
 
Family
Zygophyllaceae 
Name on Specimen
Tribulus terrestris L. 
Accepted Name
Tribulus terrestris L. 
Annotation History
1. Tribulus terrestris L.  
Type Notes
 
Collector
William H. Baker 
Collection #
8345 
Other Collectors
 
Date Collected
29 Jul 1951 
Verbatim Date
 
Country
U.S.A. 
State or Province
Idaho 
County
Canyon 
Locality
10 miles south of Nampa. 
Elevation
 
Coordinates
43.39598°, -116.5625° 
Site Description
 
Specimen Notes
Frequent. 
Phenology
Fertile 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Zygophyllaceae
11. Tribulus terrestris L.
U.S.A., Idaho, Idaho County:
Along Squaw creek, 2 miles west of Riggins.
45.418236°, -116.359434°. Datum: WGS 84. Coordinate uncertainty: 1000 meters. Georeferenced by WTU Staff. Coordinate Source: GeoLocate.
Dry rock bank. Phenology: Fruits. Origin: Introduced.
WTU 303347
William H. Baker 11978    21 Jul 1954
11. Tribulus terrestris L.
Database ID
102573 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
303347 
Barcode
 
Other Numbers
 
Family
Zygophyllaceae 
Name on Specimen
Tribulus terrestris L. 
Accepted Name
Tribulus terrestris L. 
Annotation History
1. Tribulus terrestris L.  
Type Notes
 
Collector
William H. Baker 
Collection #
11978 
Other Collectors
 
Date Collected
21 Jul 1954 
Verbatim Date
 
Country
U.S.A. 
State or Province
Idaho 
County
Idaho 
Locality
Along Squaw creek, 2 miles west of Riggins. 
Elevation
 
Coordinates
45.418236°, -116.359434° 
Site Description
Dry rock bank. 
Specimen Notes
 
Phenology
Fruits 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Zygophyllaceae
12. Tribulus terrestris L.
U.S.A., Idaho, Canyon County:
Above the Snake River at Walters Ferry, 18 miles south of Nampa.
Gravelly slopes. Phenology: Fertile. Origin: Introduced.
WTU 303445
William H. Baker 12941A    16 Jun 1955
12. Tribulus terrestris L.
Database ID
102575 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
303445 
Barcode
 
Other Numbers
 
Family
Zygophyllaceae 
Name on Specimen
Tribulus terrestris L. 
Accepted Name
Tribulus terrestris L. 
Annotation History
1. Tribulus terrestris L.  
Type Notes
 
Collector
William H. Baker 
Collection #
12941A 
Other Collectors
 
Date Collected
16 Jun 1955 
Verbatim Date
 
Country
U.S.A. 
State or Province
Idaho 
County
Canyon 
Locality
Above the Snake River at Walters Ferry, 18 miles south of Nampa. 
Elevation
 
Coordinates
 
Site Description
Gravelly slopes. 
Specimen Notes
 
Phenology
Fertile 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Zygophyllaceae
13. Tribulus terrestris L.
U.S.A., Idaho, Nez Perce County:
Summit of Lewiston Grade, 2 miles north of Lewiston.
46.445625°, -117.01667°. Datum: WGS 84. Coordinate uncertainty: 500 meters. Georeferenced by WTU Staff. Coordinate Source: GeoLocate.
Waste ground. Phenology: Fruits. Origin: Introduced.
WTU 303443
William H. Baker 14587    15 Aug 1956
13. Tribulus terrestris L.
Database ID
102576 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
303443 
Barcode
 
Other Numbers
 
Family
Zygophyllaceae 
Name on Specimen
Tribulus terrestris L. 
Accepted Name
Tribulus terrestris L. 
Annotation History
1. Tribulus terrestris L.  
Type Notes
 
Collector
William H. Baker 
Collection #
14587 
Other Collectors
 
Date Collected
15 Aug 1956 
Verbatim Date
 
Country
U.S.A. 
State or Province
Idaho 
County
Nez Perce 
Locality
Summit of Lewiston Grade, 2 miles north of Lewiston. 
Elevation
 
Coordinates
46.445625°, -117.01667° 
Site Description
Waste ground. 
Specimen Notes
 
Phenology
Fruits 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Zygophyllaceae
14. Tribulus terrestris L.
U.S.A., Washington, Whitman County:
Wawawai, Snake River Canyon.
46.63139°, -118.05194°. Datum: WGS 84. Coordinate uncertainty: 10000 meters. Georeferenced by WTU Staff. Coordinate Source: GeoLocate.
Prostrate, branches several feet long, petals yellow; gravel bars and railroad tracks. Phenology: Fertile. Origin: Introduced.
WTU 9598JWT
L. Constance 1810    15 Aug 1936
14. Tribulus terrestris L.
Database ID
102578 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
9598JWT 
Barcode
 
Other Numbers
 
Family
Zygophyllaceae 
Name on Specimen
Tribulus terrestris L. 
Accepted Name
Tribulus terrestris L. 
Annotation History
1. Tribulus terrestris L.  
Type Notes
 
Collector
L. Constance 
Collection #
1810 
Other Collectors
 
Date Collected
15 Aug 1936 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Whitman 
Locality
Wawawai, Snake River Canyon. 
Elevation
 
Coordinates
46.63139°, -118.05194° 
Site Description
 
Specimen Notes
Prostrate, branches several feet long, petals yellow; gravel bars and railroad tracks. 
Phenology
Fertile 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Zygophyllaceae
15. Tribulus terrestris L.
U.S.A., Washington, Yakima County:
(YIN) Yost Road near Larue 12 miles west of Toppenish.
Elev. 705 ft. 46.377224°, -120.559323°. Datum: WGS 84. Coordinate uncertainty: 500 meters. Georeferenced by WTU Staff. Coordinate Source: GeoLocate.
Upper sonoran gravel driveway. Phenology: Fertile. Origin: Introduced.
WTU 271089
E. Hunn 446    20 Jun 1977
15. Tribulus terrestris L.
Database ID
102581 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
271089 
Barcode
 
Other Numbers
 
Family
Zygophyllaceae 
Name on Specimen
Tribulus terrestris L. 
Accepted Name
Tribulus terrestris L. 
Annotation History
1. Tribulus terrestris L.
    Annotated by Hunn.  
Type Notes
 
Collector
E. Hunn 
Collection #
446 
Other Collectors
 
Date Collected
20 Jun 1977 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Yakima 
Locality
(YIN) Yost Road near Larue 12 miles west of Toppenish. 
Elevation
705 ft. 
Coordinates
46.377224°, -120.559323° 
Site Description
Upper sonoran gravel driveway. 
Specimen Notes
 
Phenology
Fertile 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Zygophyllaceae
16. Tribulus terrestris L.
U.S.A., Oregon, Baker County:
Along Powder River; about 30 miles east of Baker.
Roadside. Phenology: Fertile. Origin: Introduced.
WTU 152692
C. L. Hitchcock 19684    15 Jul 1952
16. Tribulus terrestris L.
Database ID
102582 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
152692 
Barcode
 
Other Numbers
 
Family
Zygophyllaceae 
Name on Specimen
Tribulus terrestris L. 
Accepted Name
Tribulus terrestris L. 
Annotation History
1. Tribulus terrestris L.  
Type Notes
 
Collector
C. L. Hitchcock 
Collection #
19684 
Other Collectors
 
Date Collected
15 Jul 1952 
Verbatim Date
 
Country
U.S.A. 
State or Province
Oregon 
County
Baker 
Locality
Along Powder River; about 30 miles east of Baker. 
Elevation
 
Coordinates
 
Site Description
Roadside. 
Specimen Notes
 
Phenology
Fertile 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Zygophyllaceae
17. Tribulus terrestris L.
U.S.A., Idaho, Washington County:
Along the Snake River at Brownlee Ferry.
44.222206°, -116.963206°. Datum: WGS 84. Coordinate uncertainty: 10000 meters. Georeferenced by WTU Staff. Coordinate Source: GeoLocate.
Sandy shore. Phenology: Fertile. Origin: Introduced.
WTU 303444
William H. Baker 11258    31 Apr 1953
17. Tribulus terrestris L.
Database ID
102583 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
303444 
Barcode
 
Other Numbers
 
Family
Zygophyllaceae 
Name on Specimen
Tribulus terrestris L. 
Accepted Name
Tribulus terrestris L. 
Annotation History
1. Tribulus terrestris L.  
Type Notes
 
Collector
William H. Baker 
Collection #
11258 
Other Collectors
 
Date Collected
31 Apr 1953 
Verbatim Date
 
Country
U.S.A. 
State or Province
Idaho 
County
Washington 
Locality
Along the Snake River at Brownlee Ferry. 
Elevation
 
Coordinates
44.222206°, -116.963206° 
Site Description
Sandy shore. 
Specimen Notes
 
Phenology
Fertile 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Zygophyllaceae
18. Tribulus terrestris L.
U.S.A., Oregon, Wheeler County:
Along Highway 207, 1 mile southwest of Spray.
Along roadside in broken ground, with Cheopodium Botrys and Salsola kali; dry, gravelly loam soil. Prostrate, creeping herb; fruit of spine-tipped nutlets; flowers yellow. Phenology: Fertile. Origin: Introduced.
WTU 186654
Albert N. Steward 7330    3 Jul 1957
with Celia B. Steward
18. Tribulus terrestris L.
Database ID
102584 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
186654 
Barcode
 
Other Numbers
 
Family
Zygophyllaceae 
Name on Specimen
Tribulus terrestris L. 
Accepted Name
Tribulus terrestris L. 
Annotation History
1. Tribulus terrestris L.  
Type Notes
 
Collector
Albert N. Steward 
Collection #
7330 
Other Collectors
Celia B. Steward 
Date Collected
3 Jul 1957 
Verbatim Date
 
Country
U.S.A. 
State or Province
Oregon 
County
Wheeler 
Locality
Along Highway 207, 1 mile southwest of Spray. 
Elevation
 
Coordinates
 
Site Description
Along roadside in broken ground, with Cheopodium Botrys and Salsola kali; dry, gravelly loam soil. 
Specimen Notes
Prostrate, creeping herb; fruit of spine-tipped nutlets; flowers yellow. 
Phenology
Fertile 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Zygophyllaceae
19. Tribulus terrestris L.
U.S.A., Oregon, Jackson County:
Along the Rogue River at Rogue River Bridge, west of Gold Hill.
Phenology: Fertile. Origin: Introduced.
WTU 131348
William H. Baker 6120    28 Jun 1949
19. Tribulus terrestris L.
Database ID
102585 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
131348 
Barcode
 
Other Numbers
 
Family
Zygophyllaceae 
Name on Specimen
Tribulus terrestris L. 
Accepted Name
Tribulus terrestris L. 
Annotation History
1. Tribulus terrestris L.  
Type Notes
 
Collector
William H. Baker 
Collection #
6120 
Other Collectors
 
Date Collected
28 Jun 1949 
Verbatim Date
 
Country
U.S.A. 
State or Province
Oregon 
County
Jackson 
Locality
Along the Rogue River at Rogue River Bridge, west of Gold Hill. 
Elevation
 
Coordinates
 
Site Description
 
Specimen Notes
 
Phenology
Fertile 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Zygophyllaceae
20. Tribulus terrestris L.
U.S.A., Utah, Juab County:
Town of Nephi, at junction of 600 N St and 200 E St.
Elev. 5150 ft. 39° 43' 3" N, 111° 49' 57" W. Datum: NAD 27.
Compacted gravelly soil with Convolvulus arvensis. Flowers yellow; stems prostrate, radiating from central taproot. Phenology: Flowers & Fruits. Origin: Introduced.
WTU 382596
Ben Legler 2294    11 Aug 2004
20. Tribulus terrestris L.
Database ID
111164 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
382596 
Barcode
 
Other Numbers
 
Family
Zygophyllaceae 
Name on Specimen
Tribulus terrestris L. 
Accepted Name
Tribulus terrestris L. 
Annotation History
1. Tribulus terrestris L.
    Annotated by Ben Legler, 2004.  
Type Notes
 
Collector
Ben Legler 
Collection #
2294 
Other Collectors
 
Date Collected
11 Aug 2004 
Verbatim Date
 
Country
U.S.A. 
State or Province
Utah 
County
Juab 
Locality
Town of Nephi, at junction of 600 N St and 200 E St. 
Elevation
5150 ft. 
Coordinates
39° 43' 3" N, 111° 49' 57" W 
Site Description
Compacted gravelly soil with Convolvulus arvensis. 
Specimen Notes
Flowers yellow; stems prostrate, radiating from central taproot. 
Phenology
Flowers & Fruits 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Zygophyllaceae
21. Tribulus terrestris L.
U.S.A., Washington, Whitman County:
Highway 128, 1/4 mile west of the confluence of the Snake and Clearwater Rivers.
T11N R46E S16. Datum: NAD 27. Coordinate uncertainty: 805 meters. Georeferenced by Ben Legler. Coordinate Source: TRS2LL.
Shoulder of highway, with Centaurea solstitialis, Lactuca serriola, Slasola tragus, and Conyza canadensis. Phenology: Fruits. Origin: Introduced.
WTU 368037
Jeff Walker 330    2 Sep 2007
21. Tribulus terrestris L.
Database ID
161975 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
368037 
Barcode
 
Other Numbers
 
Family
Zygophyllaceae 
Name on Specimen
Tribulus terrestris L. 
Accepted Name
Tribulus terrestris L. 
Annotation History
1. Tribulus terrestris L.
    Annotated by Jeff Walker.  
Type Notes
 
Collector
Jeff Walker 
Collection #
330 
Other Collectors
 
Date Collected
2 Sep 2007 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Whitman 
Locality
Highway 128, 1/4 mile west of the confluence of the Snake and Clearwater Rivers. 
Elevation
 
Coordinates
T11N R46E S16 
Site Description
Shoulder of highway, with Centaurea solstitialis, Lactuca serriola, Slasola tragus, and Conyza canadensis. 
Specimen Notes
 
Phenology
Fruits 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Zygophyllaceae
22. Tribulus terrestris L.
U.S.A., Washington, Okanogan County:
East side of Okanogan River, 100 meters east of Ellisforde bridge.
Elev. 918 ft. 48° 47.6' N, 119° 24.1' W; T38N R27E S14.
Dry roadside gravel, partial shade. Yellow flowers, prostrate; spiny fruits. Phenology: Flowers & Fruits. Origin: Introduced.
WTU 368674
Peter F. Zika 22425    26 Sep 2005
22. Tribulus terrestris L.
Database ID
166711 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
368674 
Barcode
 
Other Numbers
 
Family
Zygophyllaceae 
Name on Specimen
Tribulus terrestris L. 
Accepted Name
Tribulus terrestris L. 
Annotation History
1. Tribulus terrestris L.  
Type Notes
 
Collector
Peter F. Zika 
Collection #
22425 
Other Collectors
 
Date Collected
26 Sep 2005 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Okanogan 
Locality
East side of Okanogan River, 100 meters east of Ellisforde bridge. 
Elevation
918 ft. 
Coordinates
48° 47.6' N, 119° 24.1' W; T38N R27E S14 
Site Description
Dry roadside gravel, partial shade. 
Specimen Notes
Yellow flowers, prostrate; spiny fruits. 
Phenology
Flowers & Fruits 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Zygophyllaceae
23. Tribulus terrestris L.
U.S.A., Washington, Asotin County:
Campground on north shore of Grande Ronde River, north of Buford Ridge.
Elev. 1262 ft. 46° 2.1' N, 117° 16.3' W; T7N R44E S35.
Dry sunny gravel, over basalt, with Sporobolus cryptandrus, Bromus tectorum, scattered Celtis. Yellow flowers, prostrate; spiny fruits. Phenology: Flowers & Fruits. Origin: Introduced.
WTU 368979
Peter F. Zika 22518    7 Oct 2005
23. Tribulus terrestris L.
Database ID
167100 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
368979 
Barcode
 
Other Numbers
 
Family
Zygophyllaceae 
Name on Specimen
Tribulus terrestris L. 
Accepted Name
Tribulus terrestris L. 
Annotation History
1. Tribulus terrestris L.  
Type Notes
 
Collector
Peter F. Zika 
Collection #
22518 
Other Collectors
 
Date Collected
7 Oct 2005 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Asotin 
Locality
Campground on north shore of Grande Ronde River, north of Buford Ridge. 
Elevation
1262 ft. 
Coordinates
46° 2.1' N, 117° 16.3' W; T7N R44E S35 
Site Description
Dry sunny gravel, over basalt, with Sporobolus cryptandrus, Bromus tectorum, scattered Celtis. 
Specimen Notes
Yellow flowers, prostrate; spiny fruits. 
Phenology
Flowers & Fruits 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Zygophyllaceae
24. Tribulus terrestris L.
U.S.A., Washington, Columbia County:
Route 12, at Rose Gulch Road, 8.5 air kilometers east-northeast of Waitsburg.
Elev. 1459 ft. 46° 17.3' N, 118° 2.5' W; T9N R36E S3.
Dry gravel roadside, full sun, with Bromus tectorum, Grindelia. Flowers yellow, prostrate, occasional. Phenology: Fruits. Origin: Introduced.
WTU 369059
Peter F. Zika 22544B    7 Oct 2005
24. Tribulus terrestris L.
Database ID
167119 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
369059 
Barcode
 
Other Numbers
 
Family
Zygophyllaceae 
Name on Specimen
Tribulus terrestris L. 
Accepted Name
Tribulus terrestris L. 
Annotation History
1. Tribulus terrestris L.  
Type Notes
 
Collector
Peter F. Zika 
Collection #
22544B 
Other Collectors
 
Date Collected
7 Oct 2005 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Columbia 
Locality
Route 12, at Rose Gulch Road, 8.5 air kilometers east-northeast of Waitsburg. 
Elevation
1459 ft. 
Coordinates
46° 17.3' N, 118° 2.5' W; T9N R36E S3 
Site Description
Dry gravel roadside, full sun, with Bromus tectorum, Grindelia. 
Specimen Notes
Flowers yellow, prostrate, occasional. 
Phenology
Fruits 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Zygophyllaceae
25. Tribulus terrestris L.
U.S.A., Washington, Walla Walla County:
South side of Route 124, edge of McNary National Wildlife Refuge, west end of Burbank Heights.
Elev. 360 ft. 46° 12.7' N, 119° 0.4' W; T8N R30E S1.
Dry gravelly slope below road, full sun, with Melilotus albus, Bromus tectorum. Yellow flowers; prostrate weed. Phenology: Flowers & Fruits. Origin: Introduced.
WTU 370057
Peter F. Zika 22328    12 Sep 2005
25. Tribulus terrestris L.
Database ID
168163 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
370057 
Barcode
 
Other Numbers
 
Family
Zygophyllaceae 
Name on Specimen
Tribulus terrestris L. 
Accepted Name
Tribulus terrestris L. 
Annotation History
1. Tribulus terrestris L.  
Type Notes
 
Collector
Peter F. Zika 
Collection #
22328 
Other Collectors
 
Date Collected
12 Sep 2005 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Walla Walla 
Locality
South side of Route 124, edge of McNary National Wildlife Refuge, west end of Burbank Heights. 
Elevation
360 ft. 
Coordinates
46° 12.7' N, 119° 0.4' W; T8N R30E S1 
Site Description
Dry gravelly slope below road, full sun, with Melilotus albus, Bromus tectorum. 
Specimen Notes
Yellow flowers; prostrate weed. 
Phenology
Flowers & Fruits 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Zygophyllaceae
26. Tribulus terrestris L.
U.S.A., Washington, Franklin County:
Below Pasco-Kahlotus Road, junction with Route 12, 2 air miles east of Pasco.
Elev. 442 ft. 46° 14.3' N, 119° 3.5' W; T9N R30E S22.
Dry sunny gravel slope, with Bromus tectorum, Machaeranthera. Yellow flowers 11 millimeters diameter, prostrate, occasional weed. Phenology: Fruits. Origin: Introduced.
WTU 370152
Peter F. Zika 22309    12 Sep 2005
26. Tribulus terrestris L.
Database ID
168218 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
370152 
Barcode
 
Other Numbers
 
Family
Zygophyllaceae 
Name on Specimen
Tribulus terrestris L. 
Accepted Name
Tribulus terrestris L. 
Annotation History
1. Tribulus terrestris L.  
Type Notes
 
Collector
Peter F. Zika 
Collection #
22309 
Other Collectors
 
Date Collected
12 Sep 2005 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Franklin 
Locality
Below Pasco-Kahlotus Road, junction with Route 12, 2 air miles east of Pasco. 
Elevation
442 ft. 
Coordinates
46° 14.3' N, 119° 3.5' W; T9N R30E S22 
Site Description
Dry sunny gravel slope, with Bromus tectorum, Machaeranthera. 
Specimen Notes
Yellow flowers 11 millimeters diameter, prostrate, occasional weed. 
Phenology
Fruits 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Zygophyllaceae
27. Tribulus terrestris L.
U.S.A., Washington, Grant County:
Potholes Wildlife Area. Drainage slough west side of road, south side of slough. From roadside to 2 kilometers west of road.
Elev. 314 m. 47.08172° N, 119.34336° W. Datum: WGS 84. Coordinate uncertainty: 5 meters.
Shallow water of slough and adjacent sandy embankment up to 50 meters in from slough. Moisture gradient from saturated to dry and alkaline. Uncommon in sandy, disturbed soil. Phenology: Flowers & Fruits. Origin: Introduced.
WTU 380372
David Giblin 2316    29 Aug 2008
27. Tribulus terrestris L.
Database ID
174275 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
380372 
Barcode
 
Other Numbers
 
Family
Zygophyllaceae 
Name on Specimen
Tribulus terrestris L. 
Accepted Name
Tribulus terrestris L. 
Annotation History
1. Tribulus terrestris L.
    Annotated by David Giblin, 7 2009. Sources: FNA.  
Type Notes
 
Collector
David Giblin 
Collection #
2316 
Other Collectors
 
Date Collected
29 Aug 2008 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Grant 
Locality
Potholes Wildlife Area. Drainage slough west side of road, south side of slough. From roadside to 2 kilometers west of road. 
Elevation
314 m. 
Coordinates
47.08172° N, 119.34336° W 
Site Description
Shallow water of slough and adjacent sandy embankment up to 50 meters in from slough. Moisture gradient from saturated to dry and alkaline. 
Specimen Notes
Uncommon in sandy, disturbed soil. 
Phenology
Flowers & Fruits 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Zygophyllaceae
28. Tribulus terrestris L.
U.S.A., Washington, Franklin County:
West side of Lowe's Home Improvement Center located at northwest corner of cloverleaf formed by junction of State Road 68 and Interstate 182.
Elev. 387 ft. 46.2683° N, 119.18687° W. Datum: WGS 84. Coordinate Source: Digital map.
Disturbed soil on edge of parking lot and adjacent degraded shrub-steppe with Artemisia tridentata. Common and abundant along edge of parking lot. Phenology: Fruits. Origin: Introduced.
WTU 399988; Barcode: WTU-V-006278
David Giblin 2555    14 Oct 2008
28. Tribulus terrestris L.
Database ID
176467 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
399988 
Barcode
WTU-V-006278 
Other Numbers
 
Family
Zygophyllaceae 
Name on Specimen
Tribulus terrestris L. 
Accepted Name
Tribulus terrestris L. 
Annotation History
1. Tribulus terrestris L.
    Annotated by David Giblin, 25 2009. Sources: H&C.  
Type Notes
 
Collector
David Giblin 
Collection #
2555 
Other Collectors
 
Date Collected
14 Oct 2008 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Franklin 
Locality
West side of Lowe's Home Improvement Center located at northwest corner of cloverleaf formed by junction of State Road 68 and Interstate 182. 
Elevation
387 ft. 
Coordinates
46.2683° N, 119.18687° W 
Site Description
Disturbed soil on edge of parking lot and adjacent degraded shrub-steppe with Artemisia tridentata. 
Specimen Notes
Common and abundant along edge of parking lot. 
Phenology
Fruits 
Origin
Introduced 
Cultivated?
No 
Imaged?
Yes 

Zygophyllaceae
29. Tribulus terrestris L.
U.S.A., Washington, Klickitat County:
Port of Klickitat access road.
45.70668°, -121.457359°. Datum: WGS 84. Coordinate uncertainty: 1102 meters. Georeferenced by Joseph Stormer. Coordinate Source: Digital Map.
Sandy road shoulder. Phenology: Flowers & Fruits. Origin: Introduced.
WTU 381183
David Gross 360    26 Jul 2008
29. Tribulus terrestris L.
Database ID
178238 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
381183 
Barcode
 
Other Numbers
 
Family
Zygophyllaceae 
Name on Specimen
Tribulus terrestris L. 
Accepted Name
Tribulus terrestris L. 
Annotation History
1. Tribulus terrestris L.
    Annotated by David Gross.  
Type Notes
 
Collector
David Gross 
Collection #
360 
Other Collectors
 
Date Collected
26 Jul 2008 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Klickitat 
Locality
Port of Klickitat access road. 
Elevation
 
Coordinates
45.70668°, -121.457359° 
Site Description
Sandy road shoulder. 
Specimen Notes
 
Phenology
Flowers & Fruits 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Zygophyllaceae
30. Tribulus terrestris L.
U.S.A., Washington, Adams County:
In "pet area" of rest stop on Highway 26 near intersection with Highway 395.
46.79401° N, 118.74212° W.
Flowers yellow. Phenology: Flowers. Origin: Introduced.
WTU 381634
Jeff Walker 499    19 Jul 2010
30. Tribulus terrestris L.
Database ID
178422 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
381634 
Barcode
 
Other Numbers
 
Family
Zygophyllaceae 
Name on Specimen
Tribulus terrestris L. 
Accepted Name
Tribulus terrestris L. 
Annotation History
1. Tribulus terrestris L.
    Annotated by Jeff Walker.  
Type Notes
 
Collector
Jeff Walker 
Collection #
499 
Other Collectors
 
Date Collected
19 Jul 2010 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Adams 
Locality
In "pet area" of rest stop on Highway 26 near intersection with Highway 395. 
Elevation
 
Coordinates
46.79401° N, 118.74212° W 
Site Description
 
Specimen Notes
Flowers yellow. 
Phenology
Flowers 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Zygophyllaceae
31. Tribulus terrestris L.
U.S.A., Washington, Grant County:
Sun Lakes State Park. West of Umatilla rock, 50 yards east of Perch Lake, six miles south of Coulee City.
Elev. 1202 ft. 47° 35.747' N, 119° 21.96' W.
Growing on barren rock with shallow cover of scattered natural basalt talus gravel, no associated plants. Locally common on roadsides but uncommon this far from the main campground. Phenology: Flowers & Fruits. Origin: Introduced.
WTU 381831
Tamara Cowles 3    8 Oct 2010
with Daniel Mason, Shay Hohmann
31. Tribulus terrestris L.
Database ID
178754 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
381831 
Barcode
 
Other Numbers
 
Family
Zygophyllaceae 
Name on Specimen
Tribulus terrestris L. 
Accepted Name
Tribulus terrestris L. 
Annotation History
1. Tribulus terrestris L.  
Type Notes
 
Collector
Tamara Cowles 
Collection #
Other Collectors
Daniel Mason, Shay Hohmann 
Date Collected
8 Oct 2010 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Grant 
Locality
Sun Lakes State Park. West of Umatilla rock, 50 yards east of Perch Lake, six miles south of Coulee City. 
Elevation
1202 ft. 
Coordinates
47° 35.747' N, 119° 21.96' W 
Site Description
Growing on barren rock with shallow cover of scattered natural basalt talus gravel, no associated plants. 
Specimen Notes
Locally common on roadsides but uncommon this far from the main campground. 
Phenology
Flowers & Fruits 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Zygophyllaceae
32. Tribulus terrestris L.
U.S.A., Washington, Chelan County:
Wenatchee. Near West Foothills.
Elev. 1200 ft. T22N R20E S5. Datum: NAD 27. Coordinate uncertainty: 805 meters. Georeferenced by Ben Legler. Coordinate Source: TRS2LL.
Roadside. Phenology: Flowers & Fruits. Origin: Introduced.
WTU 389362
P. Camp 2293    10 Aug 2011
32. Tribulus terrestris L.
Database ID
185738 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
389362 
Barcode
 
Other Numbers
 
Family
Zygophyllaceae 
Name on Specimen
Tribulus terrestris L. 
Accepted Name
Tribulus terrestris L. 
Annotation History
1. Tribulus terrestris L.  
Type Notes
 
Collector
P. Camp 
Collection #
2293 
Other Collectors
 
Date Collected
10 Aug 2011 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Chelan 
Locality
Wenatchee. Near West Foothills. 
Elevation
1200 ft. 
Coordinates
T22N R20E S5 
Site Description
Roadside. 
Specimen Notes
 
Phenology
Flowers & Fruits 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Zygophyllaceae
33. Tribulus terrestris L.
U.S.A., Washington, Benton County:
Bateman Island, south end of island and adjacent parking area.
Elev. 103 m. 46.23851° N, 119.22836° W. Datum: WGS 84. Coordinate uncertainty: 200 meters. Coordinate Source: GPS.
Disturbed natural area with upland and wetland habitat; Schoenoplectus acutus and Salix spp. common along shoreline and Elaeagnus angustifolia in upland. Locally common on edge of path in disturbed soil; flowers yellow. Phenology: Flowers and Fruits. Origin: Native.
WTU 414621; Barcode: WTU-V-031724
David Giblin 5482    6 Nov 2014
33. Tribulus terrestris L.
Database ID
191086 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
414621 
Barcode
WTU-V-031724 
Other Numbers
 
Family
Zygophyllaceae 
Name on Specimen
Tribulus terrestris L. 
Accepted Name
Tribulus terrestris L. 
Annotation History
1. Tribulus terrestris L.
    Annotated by David Giblin, 20 2014. Sources: Flora of PNW.  
Type Notes
 
Collector
David Giblin 
Collection #
5482 
Other Collectors
 
Date Collected
6 Nov 2014 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Benton 
Locality
Bateman Island, south end of island and adjacent parking area. 
Elevation
103 m. 
Coordinates
46.23851° N, 119.22836° W 
Site Description
Disturbed natural area with upland and wetland habitat; Schoenoplectus acutus and Salix spp. common along shoreline and Elaeagnus angustifolia in upland. 
Specimen Notes
Locally common on edge of path in disturbed soil; flowers yellow. 
Phenology
Flowers and Fruits 
Origin
Native 
Cultivated?
No 
Imaged?
Yes 

Zygophyllaceae
34. Tribulus terrestris L.
U.S.A., Washington, Franklin County:
Pasco.
46.22958°, -119.08424°. Datum: WGS 84. Coordinate uncertainty: 5000 meters. Georeferenced by WTU Staff. Coordinate Source: GeoLocate.
City sidewalk. Phenology: Fruits. Origin: Introduced.
WTU 403208; Barcode: WTU-V-011419
Clayton Haberman s.n.    4 Oct 1996
34. Tribulus terrestris L.
Database ID
2490605 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
403208 
Barcode
WTU-V-011419 
Other Numbers
 
Family
Zygophyllaceae 
Name on Specimen
Tribulus terrestris L. 
Accepted Name
Tribulus terrestris L. 
Annotation History
1. Tribulus terrestris L.  
Type Notes
 
Collector
Clayton Haberman 
Collection #
s.n. 
Other Collectors
 
Date Collected
4 Oct 1996 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Franklin 
Locality
Pasco. 
Elevation
 
Coordinates
46.22958°, -119.08424° 
Site Description
City sidewalk. 
Specimen Notes
 
Phenology
Fruits 
Origin
Introduced 
Cultivated?
No 
Imaged?
Yes 

Zygophyllaceae
35. Tribulus terrestris L.
U.S.A., Washington, Benton County:
Athletic Area, northwest Richland.
46.300873°, -119.320168°. Datum: WGS 84. Coordinate uncertainty: 7500 meters. Georeferenced by Ibro Polovina. Coordinate Source: Digital Map.
Disturbed soil. Phenology: Flowers and Fruits. Origin: Introduced.
WTU 403207; Barcode: WTU-V-011420
Clayton Haberman s.n.    10 Oct 2006
35. Tribulus terrestris L.
Database ID
2490606 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
403207 
Barcode
WTU-V-011420 
Other Numbers
 
Family
Zygophyllaceae 
Name on Specimen
Tribulus terrestris L. 
Accepted Name
Tribulus terrestris L. 
Annotation History
1. Tribulus terrestris L.  
Type Notes
 
Collector
Clayton Haberman 
Collection #
s.n. 
Other Collectors
 
Date Collected
10 Oct 2006 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Benton 
Locality
Athletic Area, northwest Richland. 
Elevation
 
Coordinates
46.300873°, -119.320168° 
Site Description
Disturbed soil. 
Specimen Notes
 
Phenology
Flowers and Fruits 
Origin
Introduced 
Cultivated?
No 
Imaged?
Yes 

Zygophyllaceae
36. Tribulus terrestris L.
U.S.A., Washington, Asotin County:
Highway 12 east. Turnout for Chief Timothy Heritage Marker.
Elev. 237 m. 46.41215° N, 117.21298° W. Datum: WGS 84. Coordinate uncertainty: 5 meters.
Edge of parking area and adjacent riparian strip. Taprooted, sprawling annual with yellow flowers and spiny fruit; common. Phenology: Flowers and Fruits. Origin: Introduced.
WTU 414975; Barcode: WTU-V-032785
David Giblin 3048    4 Aug 2009
36. Tribulus terrestris L.
Database ID
2503713 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
414975 
Barcode
WTU-V-032785 
Other Numbers
 
Family
Zygophyllaceae 
Name on Specimen
Tribulus terrestris L. 
Accepted Name
Tribulus terrestris L. 
Annotation History
1. Tribulus terrestris L.
    Annotated by David Giblin, 2 2015. Sources: Flora of PNW.  
Type Notes
 
Collector
David Giblin 
Collection #
3048 
Other Collectors
 
Date Collected
4 Aug 2009 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Asotin 
Locality
Highway 12 east. Turnout for Chief Timothy Heritage Marker. 
Elevation
237 m. 
Coordinates
46.41215° N, 117.21298° W 
Site Description
Edge of parking area and adjacent riparian strip. 
Specimen Notes
Taprooted, sprawling annual with yellow flowers and spiny fruit; common. 
Phenology
Flowers and Fruits 
Origin
Introduced 
Cultivated?
No 
Imaged?
Yes 

Zygophyllaceae
37. Tribulus terrestris L.
U.S.A., Washington, Grant County:
River access point on west side of Highway 243 at west end of Saddle Mountain.
Elev. 132 m. 46.805717° N, 119.922203° W. Datum: WGS 84. Coordinate uncertainty: 6 meters. Georeferenced by Ben Legler. Coordinate Source: GPS.
Bare sandy soil over broken basalt, disturbed by vehicle traffic. Flowers yellow; stems prostrate and creeping; several large plants in sand. Phenology: Flowers & Fruits.
WTU
Ben Legler 13963    25 Oct 2015
37. Tribulus terrestris L.
Database ID
2782712 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
 
Barcode
 
Other Numbers
 
Family
Zygophyllaceae 
Name on Specimen
Tribulus terrestris L. 
Accepted Name
Tribulus terrestris L. 
Annotation History
1. Tribulus terrestris L.
    Annotated by Ben Legler, 2015.  
Type Notes
 
Collector
Ben Legler 
Collection #
13963 
Other Collectors
 
Date Collected
25 Oct 2015 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Grant 
Locality
River access point on west side of Highway 243 at west end of Saddle Mountain. 
Elevation
132 m. 
Coordinates
46.805717° N, 119.922203° W 
Site Description
Bare sandy soil over broken basalt, disturbed by vehicle traffic. 
Specimen Notes
Flowers yellow; stems prostrate and creeping; several large plants in sand. 
Phenology
Flowers & Fruits 
Origin
 
Cultivated?
No 
Imaged?
No 

Zygophyllaceae
38. Tribulus terrestris L.
U.S.A., Washington, Grant County:
Along 20.7 Road NE on north side of Crab Creek just north of Adrian.
Elev. 335 m. 47.388404° N, 119.385722° W. Datum: WGS 84. Coordinate uncertainty: 4 meters. Georeferenced by Ben Legler. Coordinate Source: GPS.
Dry road bank, south facing, dominated by Bromus tectorum, Salsola tragus. Stems prostrate, forming mats 1-2 meters diameter on road side. Phenology: Fruits.
WTU
Ben Legler 13993    26 Oct 2015
38. Tribulus terrestris L.
Database ID
2782741 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
 
Barcode
 
Other Numbers
 
Family
Zygophyllaceae 
Name on Specimen
Tribulus terrestris L. 
Accepted Name
Tribulus terrestris L. 
Annotation History
1. Tribulus terrestris L.
    Annotated by Ben Legler, 2015.  
Type Notes
 
Collector
Ben Legler 
Collection #
13993 
Other Collectors
 
Date Collected
26 Oct 2015 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Grant 
Locality
Along 20.7 Road NE on north side of Crab Creek just north of Adrian. 
Elevation
335 m. 
Coordinates
47.388404° N, 119.385722° W 
Site Description
Dry road bank, south facing, dominated by Bromus tectorum, Salsola tragus. 
Specimen Notes
Stems prostrate, forming mats 1-2 meters diameter on road side. 
Phenology
Fruits 
Origin
 
Cultivated?
No 
Imaged?
No 

Zygophyllaceae
39. Tribulus terrestris L.
U.S.A., Oregon, Multnomah County:
Rivergate industrial area in North Portland.
45.6184° N, 122.7707° W. Coordinate Source: Specimen Label.
Grassy banked roadsides amidst warehouses.¶Trifolium arvense, Erodium circutarium, Cardamine hirsuta, Agrostis capillaris. Fruits.¶Sporadic plants missed in eradication efforts. Phenology: Fruits. Origin: Introduced.
WTU 416759; Barcode: WTU-V-036390
Dominic Maze 90    17 Oct 2015
39. Tribulus terrestris L.
Database ID
3187626 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
416759 
Barcode
WTU-V-036390 
Other Numbers
 
Family
Zygophyllaceae 
Name on Specimen
Tribulus terrestris L. 
Accepted Name
Tribulus terrestris L. 
Annotation History
1. Tribulus terrestris L.  
Type Notes
 
Collector
Dominic Maze 
Collection #
90 
Other Collectors
 
Date Collected
17 Oct 2015 
Verbatim Date
 
Country
U.S.A. 
State or Province
Oregon 
County
Multnomah 
Locality
Rivergate industrial area in North Portland. 
Elevation
 
Coordinates
45.6184° N, 122.7707° W 
Site Description
Grassy banked roadsides amidst warehouses.¶Trifolium arvense, Erodium circutarium, Cardamine hirsuta, Agrostis capillaris. 
Specimen Notes
Fruits.¶Sporadic plants missed in eradication efforts. 
Phenology
Fruits 
Origin
Introduced 
Cultivated?
No 
Imaged?
Yes 

Zygophyllaceae
40. Tribulus terrestris 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, dry gravel above sandy beach, full sun over basalt; with Cyperus erythrorhizos, C. diandrus, Eragrostis pectinacea, Perscicaria sp., Populus deltoides. Annual, prickly fruits, prostrate, stems up to 80 centimeters long. Phenology: Fruits. Origin: Introduced.
WTU 419133; Barcode: WTU-V-041604
Peter W. Dunwiddie PWD 18-458    13 Aug 2018
with Peter F. Zika
40. Tribulus terrestris L.
Database ID
3238563 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
419133 
Barcode
WTU-V-041604 
Other Numbers
 
Family
Zygophyllaceae 
Name on Specimen
Tribulus terrestris L. 
Accepted Name
Tribulus terrestris L. 
Annotation History
1. Tribulus terrestris L.  
Type Notes
 
Collector
Peter W. Dunwiddie 
Collection #
PWD 18-458 
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, dry gravel above sandy beach, full sun over basalt; with Cyperus erythrorhizos, C. diandrus, Eragrostis pectinacea, Perscicaria sp., Populus deltoides. 
Specimen Notes
Annual, prickly fruits, prostrate, stems up to 80 centimeters long.  
Phenology
Fruits 
Origin
Introduced 
Cultivated?
No 
Imaged?
Yes 

Zygophyllaceae
41. Tribulus terrestris L.
U.S.A., Washington, Okanogan County:
Old Highway 97 at junction with Chillowist Road in northwest corner of intersection.
Elev. 251 m. 48.26406° N, 119.73608° W. Datum: WGS 84. Coordinate uncertainty: 10 meters. Coordinate Source: GPS.
Disturbed, sandy roadside edge with Bassia hyssopifolia and Salsola tragus common. Prostrate stems in sandy soil; corollas yellow; fruits spiny. Phenology: Flowers and Fruits. Origin: Introduced.
WTU 424813; Barcode: WTU-V-067955
David Giblin 6564    4 Oct 2018
41. Tribulus terrestris L.
Database ID
3252178 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
424813 
Barcode
WTU-V-067955 
Other Numbers
 
Family
Zygophyllaceae 
Name on Specimen
Tribulus terrestris L. 
Accepted Name
Tribulus terrestris L. 
Annotation History
1. Tribulus terrestris L.
    Annotated by David Giblin, 17 2019. Sources: Flora PNW, 2nd.  
Type Notes
 
Collector
David Giblin 
Collection #
6564 
Other Collectors
 
Date Collected
4 Oct 2018 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Okanogan 
Locality
Old Highway 97 at junction with Chillowist Road in northwest corner of intersection. 
Elevation
251 m. 
Coordinates
48.26406° N, 119.73608° W 
Site Description
Disturbed, sandy roadside edge with Bassia hyssopifolia and Salsola tragus common. 
Specimen Notes
Prostrate stems in sandy soil; corollas yellow; fruits spiny. 
Phenology
Flowers and Fruits 
Origin
Introduced 
Cultivated?
No 
Imaged?
Yes 

Zygophyllaceae
42. Tribulus terrestris 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.
On dry sandy upper beach, with Cyperus erythrorhizos, Cyperus diandrus, Eragrostis pectinacea, Polygonum sp., Populus deltoidea. Prostrate on gravel, up to 80cm across.
WTU
Peter Dunwiddie PWD-18-458    13 Aug 2018
with Peter Zika
42. Tribulus terrestris L.
Database ID
3279685 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
 
Barcode
 
Other Numbers
 
Family
Zygophyllaceae 
Name on Specimen
Tribulus terrestris L. 
Accepted Name
Tribulus terrestris L. 
Annotation History
1. Tribulus terrestris L.
    Annotated by Peter Dunwiddie, 2019. Sources: Flora PNW, 2nd.  
Type Notes
 
Collector
Peter Dunwiddie 
Collection #
PWD-18-458 
Other Collectors
Peter Zika 
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
On dry sandy upper beach, with Cyperus erythrorhizos, Cyperus diandrus, Eragrostis pectinacea, Polygonum sp., Populus deltoidea. 
Specimen Notes
Prostrate on gravel, up to 80cm across. 
Phenology
 
Origin
 
Cultivated?
No 
Imaged?
No 

Zygophyllaceae
43. Tribulus terrestris L.
U.S.A., Oregon, Sherman County:
LePage Campground on I-84.
45.728362° N, 120.65148° W. Datum: WGS 84. Coordinate Source: GPS.
Common on swimming beach near water's edge and higher in dry sand, with Portulaca oleracea. Flowers yellow. Phenology: Flowers. Origin: Introduced.
WTU
Peter F. Zika PWD-19-375    31 Jul 2019
with Peter Dunwiddie
43. Tribulus terrestris L.
Database ID
3281866 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
 
Barcode
 
Other Numbers
 
Family
Zygophyllaceae 
Name on Specimen
Tribulus terrestris L. 
Accepted Name
Tribulus terrestris L. 
Annotation History
1. Tribulus terrestris L.
    Annotated by Peter F. Zika, 2019. Sources: Flora PNW, 2nd.  
Type Notes
 
Collector
Peter F. Zika 
Collection #
PWD-19-375 
Other Collectors
Peter Dunwiddie 
Date Collected
31 Jul 2019 
Verbatim Date
 
Country
U.S.A. 
State or Province
Oregon 
County
Sherman 
Locality
LePage Campground on I-84. 
Elevation
 
Coordinates
45.728362° N, 120.65148° W 
Site Description
Common on swimming beach near water's edge and higher in dry sand, with Portulaca oleracea. 
Specimen Notes
Flowers yellow. 
Phenology
Flowers 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Zygophyllaceae
44. Tribulus terrestris L.
U.S.A., Washington, Okanogan County:
South end of Palmer Lake. Split Rock day Use Area.
Elev. 333 m. 48.87382° N, 119.62125° W. Datum: WGS 84. Coordinate uncertainty: 100 meters. Coordinate Source: GPS.
Sandy shoreline and adjacent upland with Salix exigua dominant. Uncommon in gravelly soil; plants prostrate; corollas yellow; fruits armed. Phenology: Flowers and Fruits. Origin: Introduced.
WTU
David Giblin 7328    18 Sep 2019
44. Tribulus terrestris L.
Database ID
3453280 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
 
Barcode
 
Other Numbers
 
Family
Zygophyllaceae 
Name on Specimen
Tribulus terrestris L. 
Accepted Name
Tribulus terrestris L. 
Annotation History
1. Tribulus terrestris L.
    Annotated by David Giblin, 2 2020. Sources: Flora PNW, 2nd.  
Type Notes
 
Collector
David Giblin 
Collection #
7328 
Other Collectors
 
Date Collected
18 Sep 2019 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Okanogan 
Locality
South end of Palmer Lake. Split Rock day Use Area. 
Elevation
333 m. 
Coordinates
48.87382° N, 119.62125° W 
Site Description
Sandy shoreline and adjacent upland with Salix exigua dominant.  
Specimen Notes
Uncommon in gravelly soil; plants prostrate; corollas yellow; fruits armed. 
Phenology
Flowers and Fruits 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Tab-delimited Text File:
Download all 44 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:
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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.