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Please cite data retrieved from this page: Data provided by the participants of the Consortium of California Herbaria (ucjeps.berkeley.edu/cch_archive/).
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Specimen ID
Determination *
Collector
Collection Date
Collection Number
County
Locality
Elevation in meters
Feedback
CAS-BOT-BC383777
Xanthium strumarium
R. F. Hoover
1966-9-16
10029
San Luis Obispo
Santa Margarita Creek 2 mi. n. of Santa Margarita
Comment
OBI15332
Xanthium strumarium
Jim Heaston
1955-10-7
s.n.
San Luis Obispo
Cal Poly SLO
Comment
OBI15333
Xanthium strumarium
Robert F. Hoover
1966-9-16
10029
San Luis Obispo
Santa Margarita Crk 2 mi N of Santa Margarita
Comment
OBI22944
Xanthium strumarium
David J. Keil
1979-10-27
13659
San Luis Obispo
E end of Lopez Lake below confluence of Arroyo Grande Crk and Phoenix crk, 0.2 mi from jctn of Lopez Cyn Rd and Pozo Rd
Comment
OBI30686
Xanthium strumarium
Julie M. Vanderwier
1980-11-10
s.n.
San Luis Obispo
Indian Knob Tar Sands
Comment
OBI38424
Xanthium strumarium
Eric Wise
1981-7-26
933
San Luis Obispo
Shepperd's Reservoir, Cal Poly
Comment
OBI51187
Xanthium strumarium
Jan Barber
1993-8-5
60
San Luis Obispo
San Simeon State park; along banks of San Simeon crk
Comment
OBI51316
Xanthium strumarium
Jan Barber
1993-8-14
81
San Luis Obispo
San Simeon State park, near seasonal outlet to ocean of San Simeon Crk
Comment
OBI65975
Xanthium strumarium
Wendy Thackery, Stacey Smith and Paul Corsi
2003-8-22
57
San Luis Obispo
Central Coast Comprehensive Wetlands GIS (CCCWGIS). S of Morro Bay on Hwy 1. N of Hollister peak off Canet Rd S of hwy 1. Outlet into Choro Crk
31
Comment
OBI79136
Xanthium strumarium
David J. Keil
2013-8-22
31963
San Luis Obispo
Morro Bay State Park. Vicinity of road junction of State Park Road with South Bay Blvd. and bridge over Chorro and Morro Creeks
8
Comment
OBI79233
Xanthium strumarium
David J. Keil, with CNPS field trip
2012-4-7
31247
San Luis Obispo
Shell Creek Road north of Highway 58
405
Comment
OBI82503
Xanthium strumarium
David J. Keil
2015-7-8
33295
San Luis Obispo
Atascadero. Southeast of intersection of El Camino Real and San Rafael Road
280
Comment
SBBG117739
Xanthium strumarium
M. Wetherwax, E. Painter
2002-9-4
CR 366
San Luis Obispo
Sulphur Springs Rd, near pipeline crossing; Camp Roberts
251
Comment
SBBG117749
Xanthium strumarium
E. Painter, M. Wetherwax
1999-11-15
SLO 28
San Luis Obispo
main channel of Chorro Crk for ca. 0.5 km, above confluence of main channel and branch; Camp San Luis Obispo
100
Comment
SBBG14595
Xanthium strumarium
E. C. Twisselmann
1962-10-5
7907
San Luis Obispo
Grant Lake
594
Comment
UC455701
Xanthium strumarium
I. J. Condit
1908-11-9
San Luis Obispo
San Luis Obispo
Comment
UCR131932
Xanthium strumarium
George K. Helmkamp
2003-8-18
8093
San Luis Obispo
Central Coast, S of Arroyo Grande; along Mesa View Dr., 0.4 mi south of the junction of Cienaga and Valley View Rd.
30
Comment
UCR134450
Xanthium strumarium
George K. Helmkamp
2003-9-26
8186
San Luis Obispo
Central Coast, SW edge of Oceano; border of sand dune recreation area
6
Comment
CAS-BOT-BC383771
Xanthium strumarium
Ernest C. Twisselmann
1954-7-18
1438
San Luis Obispo
Temblor Range and the Western San Joaquin Valley. Choice Valley: 1 1/2 miles east of Palo Prieta Summit
579
Comment
CAS-BOT-BC383772
Xanthium strumarium
Ernest C. Twisselmann
1954-7-18
1438
San Luis Obispo
Temblor Range and the Western San Joaquin Valley. Choice Valley: 1 1/2 miles east of Palo Prieta Summit
579
Comment
CAS-BOT-BC383773
Xanthium strumarium
Ernest C. Twisselmann
1958-8-27
4742
San Luis Obispo
Temblor Range and the Western San Joaquin Valley. Grant's Lake, eastern San Luis Obispo County
576
Comment
CAS-BOT-BC383774
Xanthium strumarium
Ernest C. Twisselmann
1958-8-27
4742
San Luis Obispo
Temblor Range and the Western San Joaquin Valley. Grant's Lake, eastern San Luis Obispo County
576
Comment
CAS-BOT-BC383775
Xanthium strumarium
Ernest C. Twisselmann
1967-9-8
13674
San Luis Obispo
Temblor Range and the Western San Joaquin Valley. T. Franklin Twisselmann residence, Choice Valley
640
Comment
CAS-BOT-BC383776
Xanthium strumarium
Ernest C. Twisselmann
1967-9-8
13674
San Luis Obispo
Temblor Range and the Western San Joaquin Valley. T. Franklin Twisselmann residence, Choice Valley
640
Comment
CAS-BOT-BC383778
Xanthium strumarium
Clare B. Hardham
1956-10-14
1461
San Luis Obispo
Santa Lucia Mountains. Oak Flat
Comment
OBI25765
Xanthium strumarium
David J. Keil
1980-9-17
14204
San Luis Obispo
Cyn Ranch on Shell Crk rd 6 mi N of hwy 58. Plants coll from zone around small artificial reservoir
Comment
OBI29952
Xanthium strumarium
Jim Pollard
1972-8-28
10
San Luis Obispo
Laguna Lake
Comment
OBI38417
Xanthium strumarium
Eric Wise
1981-10-23
1318
San Luis Obispo
Sinton South Pond on Shell Crk rd 6.4 mi N of hwy 58
Comment
OBI38418
Xanthium strumarium
Eric Wise
1981-9-29
1192
San Luis Obispo
Orcutt Rd, 2.3 mi S of Johnson Ave, SLO
Comment
OBI38419
Xanthium strumarium
Eric Wise
1981-10-23
1369
San Luis Obispo
Tepesquet vinyard ponds, 4-6 mi S of Shandon on San Juan rd
Comment
OBI38420
Xanthium strumarium
Eric Wise
1981-9-17
1180
San Luis Obispo
Painted Rock-Soda lake
Comment
OBI38421
Xanthium strumarium
Eric Wise
1981-9-17
1140
San Luis Obispo
Salinas river at hwy 58
Comment
OBI38422
Xanthium strumarium
Eric Wise
1981-9-17
1109
San Luis Obispo
0.9 mi N of Santa Margaria on El Camino Real, across from Union 76 Plant
Comment
OBI38423
Xanthium strumarium
Eric Wise
1981-8-7
1029
San Luis Obispo
Intersection of hwy 58 and San Juan Crk
Comment
OBI38425
Xanthium strumarium
Eric Wise
1981-6-27
733
San Luis Obispo
Alamo Crk near Twichell Res
Comment
OBI72452
Xanthium strumarium
M. Wetherwax & E. L. Painter, E. L. Painter
2002-9-4
Cr- 366
San Luis Obispo
Camp Roberts. Along Sulphur Spring Rd, near Pipeline corossing. UTMs (NAD27) zone 10S, 705117E, 3958435N
251
Comment
UCD137131
Xanthium strumarium
Ernest C. Twisselmann
1958-8-27
4742
San Luis Obispo
Eastern San Luis Obispo County: Grant's Lake.
576
Comment