Search Results — 1074 specimen records retrieved (759 records with coordinates)
Results for search: Scientific name=Lactuca serriola (including nomenclatural synonyms);   More information: Jepson Online Interchange

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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/consortium/).
 Records are made available under the CCH Data Use Terms.

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  BFRS232 Image available Lactuca serriola Peter Rubtzoff 1972-10-12 7018 El Dorado Blodgett Forest: Mainline Road Clearcut (exclusive of upper Gaddis Creek area) (Comp. 451E). Comment
  BFRS233 Image available Lactuca serriola Peter Rubtzoff 1972-10-19 7039 El Dorado Blodgett Forest: Mainline Road Clearcut (exclusive of upper Gaddis Creek area) (Comp. 451E). Comment
  CAS-BOT-BC311762  Lactuca serriola A. Williams 2013-8-9 13760 A Marin Mount Tamalpais. Marin Municipal Water District lands: Bullfrog Quarry Comment
  CAS-BOT-BC311763  Lactuca serriola A. Williams 2013-8-9 13760 B Marin Mount Tamalpais. Marin Municipal Water District lands: Bullfrog Quarry Comment
  CAS-BOT-BC340497  Lactuca serriola Ernest C. Twisselmann 1963-11-22 9096 Kings San Joaquin Valley. Kings River, just west of Stratford 60 Comment
  CAS-BOT-BC340498  Lactuca serriola Ernest C. Twisselmann 1963-11-22 9096 Kings San Joaquin Valley. Kings River, just west of Stratford 60 Comment
  CAS-BOT-BC340503  Lactuca serriola Ira L. Wiggins 1965-10-24 20288 Orange At corner of Yorba Linda and State College Blvd., Fullerton Comment
  CAS-BOT-BC340504  Lactuca serriola Scott D. White 1996-9-22 4543 Riverside Perris Basin, W Riverside Co. Perris: Nuevo Road near intersect. w/ Wilson Ave., W of the San Jacinto Riv crossing 435 Comment
  CAS-BOT-BC340508  Lactuca serriola Marian L. Campbell 1920-8-17 s.n. Solano Cordelia Comment
  CAS-BOT-BC340514  Lactuca serriola John Thomas Howell 1963-5-18 39283 Monterey 2.5 miles south of Aromas 60 Comment
  CAS-BOT-BC340544  Lactuca serriola James R. Shevock; Dana York 1995-9-22 12318 Fresno Southern Sierra Nevada, Sequoia National Forest. Horseshoe Bend along Calif. highway 180, Kings River drainage 975 Comment
  CAS-BOT-BC340545  Lactuca serriola Henry M. Pollard 1951-8-2 s.n. Fresno Huntington Lake and Vicinity. Big Creek 1524 Comment
  CAS-BOT-BC340563  Lactuca serriola James R. Shevock 1994-7-9 12218 Kern Southern Sierra Nevada. Along California highway 178 just east of turn-off to Kernville and west of Weldon. South Fork Valley 798 Comment
  CAS-BOT-BC340575  Lactuca serriola J. W. Blankinship 1928-8-20 s.n. Lake Mt. Konocti Comment
  CAS-BOT-BC340576  Lactuca serriola J. W. Blankinship 1928-7-28 s.n. Lake Kelseyville. Kellsey [Kelsey] Creek Comment
  CAS-BOT-BC340577  Lactuca serriola Greg de Nevers 2001-7-8 12582 Lake Clear Lake, Lake County Land Trust, Rodman Slough 475 Comment
  CAS-BOT-BC340579  Lactuca serriola LeRoy Abrams 1902-8-18 2956 Los Angeles Ballona Creek, near Mesmer Comment
  CAS-BOT-BC340581  Lactuca serriola Timothy S. Ross; Steve Boyd 1994-9-21 8340 Los Angeles Liebre Mountains. Cow Spring Pond: sag pond on the San Andreas Fault Zone at the N foot of Liebre Mtn and on the S side of West Oakdale Canyon Road, ca 100 m W of the Cow Spring Canyon drainage 1155 Comment
  CAS-BOT-BC340582  Lactuca serriola Steven A. Junak 1996-9-28 SCI- 672 Los Angeles San Clemente Island: W side of island, in middle portion of Box Canyon, near UTM 11 0361800E 3637800N 335 Comment
  CAS-BOT-BC340590  Lactuca serriola Gordon H. True 1961-8-2 106 Nevada G. H. True Ranch, 7 miles southwest of Grass Valley on McCourtney Road 548 Comment
  CAS-BOT-BC340594  Lactuca serriola Peter H. Raven 1954-8-28 8023 Nevada Nevada City 762 Comment
  CAS-BOT-BC340605  Lactuca serriola J. H. Thomas 1954-6-24 4336 A Santa Cruz Northern end of Hilton Airport, between airstrip and highway 243 Comment
  CAS-BOT-BC340606  Lactuca serriola J. H. Thomas 1953-7-29 3566 Santa Cruz Northern end of Hilton Airport, between airstrip and highway 243 Comment
  CAS-BOT-BC340607  Lactuca serriola J. H. Thomas 1954-4-10 3875 Santa Cruz Northern end of Hilton Airport between airstrip and highway 243 Comment
  CAS-BOT-BC340608  Lactuca serriola J. H. Thomas 1953-10-3 3585 Santa Cruz Northern end of Hilton Airport, between airstrip and highway 243 Comment
  CAS-BOT-BC340609  Lactuca serriola J. H. Thomas 1954-5-26 4212 Santa Cruz Northern end of Hilton Airport, between airstrip and highway 243 Comment
  CAS-BOT-BC340614  Lactuca serriola S. B. Parish 1895-7-20 3610 San Bernardino Vicinity of San Bernardino 457 Comment
  CAS-BOT-BC340615  Lactuca serriola Ernest C. Twisselmann 1969-6-4 15584 San Bernardino South side of Harper Dry Lake 670 Comment
  CAS-BOT-BC340616  Lactuca serriola Ernest C. Twisselmann 1969-6-4 15584 San Bernardino South side of Harper Dry Lake 670 Comment
  CAS-BOT-BC340617  Lactuca serriola F. H. Billings 1925-7-1 23 San Bernardino Redlands Comment
  CAS-BOT-BC340618  Lactuca serriola S. B. Parish 1895-7-20 3610 San Bernardino Collected near San Bernardino. Recently introduced on E. & 7th Sts., San Bernardino City Comment
  CAS-BOT-BC340619  Lactuca serriola Shaw; Illingsworth 1900-8-2 223 San Bernardino San Bernardino Comment
  CAS-BOT-BC340620  Lactuca serriola F. H. Billings 1925-7-1 24 San Bernardino Redlands Comment
  CAS-BOT-BC340626  Lactuca serriola E. L. Painter; M. Wetherwax 2002-9-4 CR- 368 San Luis Obispo Camp Roberts. On roadbank of Sulphur Spring Road 263 Comment
  CAS-BOT-BC340634  Lactuca serriola John Thomas Howell 1964-6-29 40776 San Luis Obispo Cambria Comment
  CAS-BOT-BC340636  Lactuca serriola John Thomas Howell 1964-6-29 40775 San Luis Obispo Cambria Comment
  CAS-BOT-BC340647  Lactuca serriola Josephine D. Randall 1907-7-15 85 Santa Clara Santa Cruz Peninsula. Stanford University Comment
  CAS-BOT-BC340651  Lactuca serriola J. H. Thomas 1954-8-12 4576 Santa Clara Summit of Los Gatos - Santa Cruz Highway, State Highway 17, near county line 609 Comment
  CAS-BOT-BC340652  Lactuca serriola J. H. Thomas 1954-8-12 4575 Santa Clara Summit of Los Gatos - Santa Cruz Highway, State Highway 17, near county line 609 Comment
  CAS-BOT-BC340653  Lactuca serriola John H. Thomas 1955-8-1 5303 Santa Clara Along Alviso Slough, near South Bay Yacht Club Comment
  CAS-BOT-BC340666  Lactuca serriola Ernest C. Twisselmann 1965-9-19 11597 Tulare San Joaquin Valley, Pixley National Wildlife Refuge. Lake on the west side of the Refuge 68 Comment
  CAS-BOT-BC340670  Lactuca serriola John Thomas Howell 1967-11-3 44044 Tulare About 4.5 miles east-northeast of Pixley 83 Comment
  CAS-BOT-BC340672  Lactuca serriola John Thomas Howell; Gordon H. True 1967-5-31 42510 Tulare About 4 1/2 miles east-northeast of Pixley 83 Comment
  CAS-BOT-BC340680  Lactuca serriola Ira L. Wiggins 1971-7-29 21745 Tuolumne Shoulder of Highway 108, 0.4 mi E of exit to Twain Harte Comment
  CAS-BOT-BC340681  Lactuca serriola Ira L. Wiggins 1973-9-29 22063 Tuolumne Beside road from Twain Harte to Tuolumne, 3.1 mi S of Highway 108 towards Tuolumne 914 Comment
  CAS-BOT-BC340685  Lactuca serriola Steven A. Junak 1989-9-6 SN- 421 Ventura San Nicolas Island: NW end of mesa, along Tufts Road near water well buildings (Buildings #132-134) 1676 Comment
  CAS-BOT-BC340686  Lactuca serriola Steven A. Junak 1984-5-31 SN- 114 Ventura San Nicolas Island: N coastal flats, at foot of road from Living Compound, just E of NAVFAC facility 30 Comment
  CAS-BOT-BC340687  Lactuca serriola Steven A. Junak 1989-7-13 SN- 416 Ventura San Nicolas Island: NE portion of mesa, just S of western end of airfield runways 152 Comment
  CAS-BOT-BC340688  Lactuca serriola Steven A. Junak 1985-10-17 SN- 161 Ventura San Nicolas Island: On mesa, at Living Compound, across road from Public Works building 121 Comment
  CAS-BOT-BC340689  Lactuca serriola Henry M. Pollard 1946-7-21 s.n. Ventura Ventura River Basin. So. Pac. R. R., Ventura Comment
  CAS-BOT-BC340690  Lactuca serriola Henry M. Pollard 1963-8-13 s.n. Ventura Ventura River Basin. On Ventura Ave. near Franklin Lane, Ventura Comment
  CAS-BOT-BC340691  Lactuca serriola Henry M. Pollard 1968-8-21 s.n. Ventura Ventura River Basin. Between Southern Pacific R.R. and Ventura Avenue near Wadstrom, Ventura Oil Fields Comment
  CAS-BOT-BC340692  Lactuca serriola Henry M. Pollard 1947-10-5 s.n. Ventura Ventura River Basin. Coyote Creek, near Foster Oaks Comment
  CAS-BOT-BC340693  Lactuca serriola Henry M. Pollard 1944-10-22 s.n. Ventura Baldwin Road, Ojai Valley Comment
  CAS-BOT-BC471204  Lactuca serriola Erika M. Gardner; Jennifer Pilapil 2013-8-7 444 Kern Southern Sierra Nevada, Scodie Mountains, Sequoia National Forest. About 0.10 mi E of McIver's spring. Along old trail, unmarked closed trail 2005 Comment
  CAS-BOT-BC49492  Lactuca serriola James D. Jokerst 1983-7-27 1900 Modoc Near Signal Butte. 1340 Comment
  CATA1445  Lactuca serriola Mark L. Hoefs, Robert F. Thorne 1996-4-6 2609 Los Angeles Santa Catalina Island: Pebbly Beach 6 Comment
  CATA1650  Lactuca serriola Mark L. Hoefs, Steven A. Junak 1998-6-12 2934 Los Angeles Santa Catalina Island: Hillside above Catalina Harbor 14 Comment
  CATA1683  Lactuca serriola Mark L. Hoefs, Steven A. Junak, Keri Kirkland 1998-7-18 2978 Los Angeles Santa Catalina Island: Upper Middle Canyon, above Edison pump house 310 Comment
  CATA1684  Lactuca serriola Mark L. Hoefs, Steven A. Junak, Keri Kirkland 1998-7-18 2979 Los Angeles Santa Catalina Island: Lower Middle Ranch Canyon 219 Comment
  CDA16117  Lactuca serriola G. F. Hrusa 1999-8-28 15271 Yolo Sacramento Valley; Tule canal. Levee Rd., Rd. 107, +/- 1/4 mi N of I-5. 0 Comment
  CDA20812  Lactuca serriola G. F. Hrusa 1990-9-12 8218 Sacramento Natoma Unit-Folsom Lake State Rec. Area. Comment
  CDA30882  Lactuca serriola M. Beyers 2010-8-27 774 Alpine Highway 89. Monitor Pass. Approximately, 1 mile north of Lake Heenan. 2216 Comment
  CDA30941  Lactuca serriola M. Beyers 2010-8-27 827 Alpine HIghway 4: East fork of the Carson River, where highway bridges the river. 1775 Comment
  CDA39230  Lactuca serriola D. G. Kelch 2011-10-2 11 .814B Placer Gold Run rest stop. Comment
  CDA40527  Lactuca serriola Tom Schweich 2012-10-4 911 Alameda Along the Veterans Court bicycle path, very close to the southern landing of the Bay Farm bicycle bridge on Bay Farm Island. Comment
  CDA5613  Lactuca serriola A. S. Crafts 1926-7-8 417 Yolo University Farm Campus, Davis. 0 Comment
  CDA7170  Lactuca serriola D. G. Kelch 2006-7-14 6 .331 Contra Costa Carquinez Strait; Along Marine Vista Ave immmediately west of Pacheco Slough. East of Martinez. Comment
  CDA7504  Lactuca serriola T. C. Fuller 1962-5-8 8403 San Bernardino Denny s Coffee Shop, Highway 66, Barstow. 0 Comment
  CDA7505  Lactuca serriola A. C. Browne 1953-9-17 Santa Barbara Lompoc. 0 Comment
  CDA7868  Lactuca serriola Jon P. Rebman, J. Gregory, K. Rich, P. Famolaro 2007-9-12 13847 San Diego Sweetwater Reservoir, east of National City and south of La Presa; canyon just below the dam on the west side of the reservoir. Comment
  CHSC100026  Lactuca serriola Lowell Ahart; John Dittes 2008-8-21 15227 -A Merced On the banks of Dutchman Slough, about 220 yards south of the wire gate on the south side of Sandy Mush Road, 3.7 miles west of Highway 99, about 8.5 miles south-southeast of Merced. 53 Comment
  CHSC100372  Lactuca serriola Lowell Ahart; John Dittes 2008-8-25 15291 Modoc On the west side of the Pit River, about 1/8 mile east of County Road 91, about 3.8 miles (air) north-notheast of Lookout. 1273 Comment
  CHSC102540  Lactuca serriola Lowell Ahart 2009-10-27 16480 Napa Below the high water line of Lake Berryessa, about 100 yards east of Eticuera Creek, about 50 yards south of Eticuera Parking Area at the northeast end of the causeway, on the south side of Berryessa Knoxville Road, about 20 miles (air) northwest of Winters. 130 Comment
  CHSC102617  Lactuca serriola Lowell Ahart 2009-7-9 16024 Butte On the east side of Big Chico Creek, about 50 yards west of Ten Mile House Road, Upper Bidwell Park about 3/4 mile (air) west of Highway 32, about 10 miles northeast of Chico. 203 Comment
  CHSC102699  Lactuca serriola Lowell Ahart; John Dittes, Josephine Guardino 2009-8-27 16307 Tehama On the east side of Forest Service Road 29N25A, Childs Meadows, about 2600 feet south of the intersection of Highway 36 (89) and Forest Service Road 29N25A, 2.3 miles (air) northeast of the town of Mill Creek, 9.1 miles (air) south of Lassen Peak. Area between SE 1/4 Section 23 and SW 1/4 Section 24. 1493 Comment
  CHSC102720  Lactuca serriola Lowell Ahart 2009-8-9 16269 Butte Rice field, Peter Ahart Ranch, about 2 1/2 miles north and 3/4 mile east of Honcut, about 12 miles (air) south of Oroville. 31 Comment
  CHSC103003  Lactuca serriola Lowell Ahart 2009-10-12 16426 Napa Below the high water line of Lake Berryessa, along Capell Creek northeast of Rest Area, 3/4 mile northeast of Highway 128 on Berryessa Knoxville Road, 3/4 mile soutwest of Capell Cove Launch Ramp on Berryessa Knoxville Road, about 19 miles (air) west of Winters. 133 Comment
  CHSC106179  Lactuca serriola Lowell Ahart; John Dittes 2010-8-30 17073 Modoc About 15 yards west of the fence, south edge of the meadow, Ash Creek State Wildlife Area, 2300 feet north of Lassen County Line, about 3.6 miles (air) west of Adin, about 8.0 miles (air) northeast of Bieber, Big Valley. 1267 Comment
  CHSC106339  Lactuca serriola Lowell Ahart; John Dittes 2010-8-30 17073 A Modoc About 15 yards west of the fence, south edge of the meadow, Ash Creek State Wildlife Area, 2,300 feet north of Lassen County Line, about 3.6 miles (air) west of Adin, about 8.0 miles (air) northeast of Bieber, Big Valley. 1267 Comment
  CHSC110045  Lactuca serriola Lowell Ahart 2012-10-28 18521 Butte Near the north edge of the paved park road, about 50 yards east of Table 5, west of Cedar Grove, Lower Bidwell Park, Chico. 68 Comment
  CHSC110383  Lactuca serriola Lowell Ahart 2012-9-5 18449 Plumas Road edge, where the County Road crosses the South Fork of the Feather River, about 1 mile (air) southeast of Pilot Peak, about 8-1/4 miles (air) northwest of La Porte. 1828 Comment
  CHSC110914  Lactuca serriola Lowell Ahart 2012-7-28 18388 -A Nevada On the west side of Pioneer Trail, about 30 yards east of the PG and E Pavilion and restrooms, on the east side of Bowman Lake Road, about 30 yards south of the Bear River, Bear Valley. 1433 Comment
  CHSC111604  Lactuca serriola Lowell Ahart 2012-8-10 18417 Butte The north side of the parking area, Bidwell Mansion, Chico. Uncommon. Urban. 60 Comment
  CHSC111611  Lactuca serriola Lowell Ahart 2012-7-28 18388 Nevada On the east side of Pioneer Trail, about 50 yards east of the P.G. and E. Pavilion and restrooms, on the east side of Bowman Lake Road, about 30 yards south of the Bear River, Bear Valley. 1433 Comment
  CHSC112816  Lactuca serriola Lowell Ahart; John Dittes 2013-7-25 18947 Modoc 30 yards north of the east-west fence, south edge of Ash Creek Floodplain, northeast of Patterson Homestead, east of Elkins Lane, 1.0 mile (air) south of County Road 87, 3.14 miles (air) west of Adin, Big Valley. 1267 Comment
  CHSC112952  Lactuca serriola L. P. Janeway 2014-11-6 11581 Yuba Northern High Sierra Nevada. Plumas National Forest; along Ore-gon Hill Road 0.5 km northeast of Road 18N11; 0.9 air-km north-west of Summit Hill; slope above Burnt Bridge Creek. 792 Comment
  CHSC113011  Lactuca serriola Lowell Ahart; John Dittes 2013-7-23 18887 Lassen Drainage filled with dirt from construction of a pond, 40 yards south of the man made pond, about 110 yards north of the four tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley. 1267 Comment
  CHSC113627  Lactuca serriola Lowell Ahart 2014-8-31 19825 Plumas Strand, south of an unamed drainage, on the west side of Black Rock Creek, about 200 yards southwest of the foot bridge across Black Rock Creek, about 200 yards southwest of the Black Rock, Little Grass Valley Reservoir, about 4 1/2 miles (air) northwest of La Porte. 1536 Comment
  CHSC113861  Lactuca serriola Lowell Ahart 2014-9-9 19861 Plumas On the north side of the gravel road, on the west side of Sly Creek Reservoir, about 9 miles (air) southwest of La Porte. 1126 Comment
  CHSC114163  Lactuca serriola Barbara L. Wilson 2011-8-23 16860 Siskiyou Road 2M22 near Lake Siskiyou. 996 Comment
  CHSC115805  Lactuca serriola Lowell Ahart; John Dittes 2015-8-5 20430 Tehama East side of Childs Meadow, 150 yards west of Highway 36, 0.69 air-miles northwest of intersection of State Highway 36 and Wilson Lake Road (County Road 769), 1.2 air-miles east of Doe Mt., 9.77 air-miles south of Lassen Peak. 1498 Comment
  CHSC117622  Lactuca serriola Lowell Ahart; John Dittes, Josephine Guardino 2016-9-21 21371 Tehama On the north side of a poor dirt road,about 10 yards east of Highway 89, a little south of Bluff Falls, about 1 mile south of Lassen Volcanic National Park, about 2 1/2 miles (air) north of Morgan Mountain. 1963 Comment
  CHSC26678  Lactuca serriola M. S. Taylor; M. Hayes 1977-8-16 1452 Butte Between maintenance buildings and Clear Creek, Butte College Campus, ca. 15 mi s of Chico. 60 Comment
  CHSC28570  Lactuca serriola M. S. Taylor; J. D. Jokerst 1979-11-11 2280 Butte Edge of ricefield, on w side of Goodspeed Watt Rd, ca. 6 mi s of Chico. 33 Comment
  CHSC28571  Lactuca serriola M. S. Taylor; J. D. Jokerst 1979-11-11 2283 Butte Edge of ricefield, on w side of Goodspeed Watt Rd, ca. 6 mi s of Chico. 33 Comment
  CHSC30400  Lactuca serriola Diane H. Ikeda 1979-10-7 180 Butte Ca. 7.7 mi s of intersection of Ord Ferry Rd. and Dayton Rd.-Goodspeed Watt, on Goodspeed Watt. 28 Comment
  CHSC31920  Lactuca serriola M. S. Taylor; T. Devine, M. Merryman 1981-2-11 3377 Butte On road embankment, e side of Lumpkin Rd, ca. 200 ft n of Macabes Creek, ca. 2 mi n of jct of Lumpkin Rd and Oroville-Quincy Hwy (162), ca. 13 mi ne of Oroville. 457 Comment
  CHSC32542  Lactuca serriola L. Ahart 1977-10-19 1601 Butte Near the garden. Peter Ahart Ranch, Honcut. 50 Comment
  CHSC32543  Lactuca serriola S. Posner 1972-9-21 Butte 100 yds. west of Nord Ave, 200 yards south of Sacramento Ave., in almond orchard. Chico. Comment
  CHSC34121  Lactuca serriola L. Ahart 1981-9-10 3139 Sutter On s side of South Butte, Sutter Buttes. There is a small stream that runs down the South Butte past the old homestead and down by the gas well. Ca. 1/2way there is a rocky area along the stream and here is where the plant was found. 250 Comment
  CHSC34931  Lactuca serriola M. S. Taylor 1981-7-29 4144 Plumas On e side of 24N42-Flournoy Grade, 1.9 mi s of Flournoy Bridge, ca. 3 air mi e of Genesee. 1463 Comment
  CHSC365  Lactuca serriola D. Bower 1953-8-13 Butte 3A Llano Seco. Rice field. 30 Comment
  CHSC37372  Lactuca serriola R. A. Schlising 1981-9-20 4200 Butte Richvale Vernal Pools, 1/4 mi s of jct Hwy 162 to Oroville and Hwy 99, along latter and across from Thermalito Afterbay. Comment
  CHSC37390  Lactuca serriola R. A. Schlising 1980-8-31 3970 Butte Richvale Vernal Pools, 1/4 mi s of jct Hwy 162 to Oroville and Hwy 99, along latter and across from Thermalito Afterbay. Comment
  CHSC38366  Lactuca serriola Vernon Oswald 1983-6-27 773 Butte Upper Bidwell Park, Chico, near the n. boundary of the park in the depression w of the Easter Cross. 88 Comment
  CHSC38367  Lactuca serriola Vernon Oswald 1983-6-27 774 Butte Upper Bidwell Park, Chico, near the n. boundary of the park in the depression w of the Easter Cross. 88 Comment
  CHSC39018  Lactuca serriola J. D. Jokerst 1983-7-21 1927 Butte Top of North Table Mt., west edge ca 1/3 mile north of Beatsin Hollow. Comment
  CHSC40523  Lactuca serriola Pauleen Broyles 1982-8-5 828 Tehama The Nature Conservancy Vina Plains Preserve. 60 Comment
  CHSC40557  Lactuca serriola Lowell Ahart 1985-10-19 5217 Sutter About 300 feet north of Little North Butte, about 1/2 mile north of the Dean Cabin, Dean Ranch, Sutter Buttes. 320 Comment
  CHSC42766  Lactuca serriola Lowell Ahart 1987-8-3 5843 Butte Along the North Fork of the Feather River, near the Poe Power House, about 2 miles south-east of Jarbo Gap. 271 Comment
  CHSC43112  Lactuca serriola L. P. Janeway 1986-8-6 1794 Fresno Top of ridge on south side of Warthan Cr, 2-3 mi southwest of Coalinga. 381 Comment
  CHSC5032  Lactuca serriola L. B. Barlow 1967-7-6 96 Lassen 2 mi. west of Murrer's Ranch turn off, 14.9 mi. north of Susanville, Highway 139. 1463 Comment
  CHSC5067  Lactuca serriola L. Stites 1967-7-4 122 Lassen Collects at Eagle Lake Biology Station. 1371 Comment
  CHSC59078  Lactuca serriola Vernon H. Oswald; Lowell Ahart 1992-8-25 5190 Lassen Lassen Volcanic National Park. West shore of Snag Lake near the islands. 1851 Comment
  CHSC62429  Lactuca serriola L. P. Janeway 1993-9-1 4577 Plumas Plumas National Forest. Soda Creek 0.1 mi northwest of Hwy 70 and the East Branch North Fork Feather River. Dirt road cutbank and road edge. 914 Comment
  CHSC66297  Lactuca serriola Vernon H. Oswald 1996-6-27 7898 Tehama Northwest side of Sactamento Valley. Thomes Creek Ecological Reserve. CDFG parcel on the S side of Gyle Rd. NW of Corning. Collected near the S boundary ca. 0.7 mi E of the W boundary. 105 Comment
  CHSC66664  Lactuca serriola Vernon H. Oswald; Lowell Ahart 1996-7-22 8081 Butte Sacramento River National Wildlife Refuge, Llano Seco Unit. Fish and Wildlife Service parcel between 7 Mile Lane and the Sacramento River. On the W side of the levee at the SW corner of Tract 6, Sanctuary 1. 30 Comment
  CHSC66900  Lactuca serriola Lowell Ahart 1996-10-10 7706 Plumas On the west side of the dirt road, at Turkey Town, about one mile west of Blue Nose Mountain, about 2 miles east of Pilot Peak. 1676 Comment
  CHSC69415  Lactuca serriola Lowell Ahart 1997-8-13 7842 Nevada Along the sides of Penn Valley Road, just east of the intersection of Indian Springs Road and Penn Valley Road, just south of Highway 20, about 1.5 miles west of Penn Valley. 426 Comment
  CHSC69416  Lactuca serriola Lowell Ahart 1997-8-13 7843 Nevada Along the sides of Penn Valley Road, just east of the intersection of Indian Springs Road and Penn Valley Road, just south of Highway 20, about 1.5 miles west of Penn Valley. 426 Comment
  CHSC74068  Lactuca serriola Susi Urie 1998-8-18 98 -068 Placer Lake Tahoe Basin--National Forest. About 0.2 mi north of Lake Tahoe; large meadow complex between Kings Beach and Tahoe Vista. 1901 Comment
  CHSC84421  Lactuca serriola Lowell Ahart 2003-9-7 10558 Plumas Near a seep and spring on the north side of the road, on Hartman Bar Ridge, about 1 mile (air) southwest of Franklin Hill, about 3 1/2 miles (air) northwest of Tamarack Flat, about 6 miles (air) northwest of Little Grass Valley Reservoir Dam. 1524 Comment
  CHSC93043  Lactuca serriola D. Isle 2001-8-25 1398 Lake Mendocino National Forest--North Coast Ranges. Upper Main Eel River Watershed. Bloody Rock Trail. Comment
  CHSC94779  Lactuca serriola Lowell Ahart 2006-10-8 13401 Plumas On the west bank of Chips Creek, south of the bridge on Highway 70, on the north side of the North Fork of the Feather River, about 1 1/4 miles southwest of Belden. 715 Comment
  CHSC97775  Lactuca serriola Lowell Ahart 2007-11-1 14546 Yuba On the south side of Willow Creek, above the high water line of Bullards Bar Reservoir, about 1 mile northwest of Old Camptonville Road, about 1 1/2 miles (air) west of Camptonville. 627 Comment
  CHSC99907  Lactuca serriola Lowell Ahart; John Dittes 2008-8-21 15227 Merced On the banks of Dutchman Slough, about 220 yards south of the wire gate on the south side of Sandy Mush Road, 3.7 miles west of Highway 99, about 8.5 miles south-southeast of Merced. 53 Comment
  CHSC99927  Lactuca serriola Lowell Ahart 2008-7-18 15110 Nevada Along the P. G. and E. water ditch at the 3 1/4 mile mark, about one mile southwest of Highway 20 (by ditch), about 1/2 mile south of Bear Valley. 1744 Comment
  CLARK-A1528-1976  Lactuca serriola John C. Roos 1965-10-7 Riverside Beaumont Comment
  CLARK-A1528-252  Lactuca serriola John C. Roos 1951-9-15 5204 San Bernardino Loma Linda 304 Comment
  HREC1287 Image available Lactuca serriola H. F. Heady 1952-8-26 449 Mendocino North Pasture - Hopland Field Station Comment
  HSC37696  Lactuca serriola A. M. Montalvo, J. D. Ackerman 1975-9-11 730 Lake Boggs Mtn. E of Cobb, 100 m down from Rd. 100 on 110. 780 Comment
  HSC57008  Lactuca serriola Overton, Butler 1979-7-24 9600 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1250 Comment
  HSC5886  Lactuca serriola H. E. Parks 1930-8-25 701 Alameda Strawberry Canyon, Berkeley. Comment
  HSC80072  Lactuca serriola D. A. Hoover 1985-7-10 624 San Bernardino The Nature Conservancy Big Morongo Preserve, Canyon Trail, 1 mi. downstream from the Kiosk 762 Comment
  IRVC21694  Lactuca serriola Fred M. Roberts 1984-8-2 1365 Orange UC Irvine, along Adobe Circle Raod, 0.9km ENE campus center; 2.3km W French Hill, Irvine 30 Comment
  JEPS100181  Lactuca serriola A. Langston 2003-8-26 AL 85 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS104114  Lactuca serriola Lowell Ahart 2003-9-7 10558 Plumas Near a seep and spring on the n side of the road, on Hartman Bar Ridge, ca 1 mi (air) sw of Franklin Hill, ca 3 1/2 mi (air) nw of Tamarack Flat, ca 6 mi (air) nw of Little Grass Valley Reservoir Dam. 1524 Comment
  JEPS104863  Lactuca serriola Dean W. Taylor 1992-8-22 13213 Tehama Wilson Lake Road (Forest Road 29N63), 0.7 miles East from Highway 89, Lassen National Forest 1554 Comment
  JEPS105064  Lactuca serriola Dean W. Taylor 1995-9-20 15553 Mono Conway Summit, Walker River watershed, along Highway 395 in disturbed roadcut and roadside areas on western site of roadway, 0.3 miles N from summit 2468 Comment
  JEPS109402  Lactuca serriola Dean W. Taylor 2004-7-19 19182 Siskiyou Weed, wet meadow just east of town limits along Boles Creek 1051 Comment
  JEPS114501  Lactuca serriola Lowell Ahart 2008-7-18 15110 Nevada Along the P. G. & E. water ditch at the 3 1/4 mile mark, about one mile southwest of Highway 20 (by ditch), about 1/2 mile south of Bear Valley 1744 Comment
  JEPS114546  Lactuca serriola Lowell Ahart, John Dittes 2008-8-21 15227 Merced On the banks of Dutchman Slough, about 220 yards south of the wire gate on the south side of Sandy Mush Road, 3.7 miles west of Highway 99, about 8.5 miles south-southeast of Merced 53 Comment
  JEPS115364  Lactuca serriola Lowell Ahart 2009-7-9 16024 Butte On the east side of Big Chico Creek, about 50 yards west of Ten Mile House Road, Upper Bidwell Park about 3/4 mile (air) west of Highway 32, about 10 miles northeast of Chico 203 Comment
  JEPS115381  Lactuca serriola Lowell Ahart, John Dittes, Josephine Guardino 2009-8-27 16307 Tehama On the east side of Forest Service Road 29N25A, Childs Meadows, about 2600 feet south of the intersection of Highway 36 (89) and Forest Service Road 29N25A, 2.3 miles (air) northeast of the town of Mill Creek, 9.1 miles (air) south of Lassen Peak. Area be 1493 Comment
  JEPS115631  Lactuca serriola Lowell Ahart 2009-8-9 16269 Butte Rice field, Peter Ahart Ranch, about 2 1/2 miles north and 3/4 mile east of Honcut, about 12 miles (air) south of Oroville 31 Comment
  JEPS117280  Lactuca serriola Lowell Ahart, John Dittes 2010-8-30 17073 Modoc About 15 yards west of the fence, south edge of the meadow, Ash Creek State Wildlife Area, 2300 feet north of Lassen County Line, about 3.6 miles (air) west of Adin, about 8.0 miles (air) northeast of Bieber, Big Valley 1267 Comment
  JEPS119951  Lactuca serriola Lowell Ahart 2012-9-5 18449 Plumas Road edge, where the County Road crosses the South Fork of the Feather River, about 1 mile (air) southwest of Pilot Peak, about 8 1/24 miles (air) northwest of La Porte. Comment
  JEPS121203  Lactuca serriola Lowell Ahart, John Dittes 2013-7-25 18947 Modoc 30 yards N of the E-W fence, south edge of Ash Creek Floodplain, NE of Patterson Homestead, E of Elkins Lane, 1.0 air miles S of County Road 87, 3.14 air miles W of Adin, Big Valley. Comment
  JEPS121276  Lactuca serriola Lowell Ahart, John Dittes 2013-7-23 18887 Lassen 40 yards S of the man-made pond, about 110 yards N of the four tall poles, Ash Creek State Wildlife Area, about 5.5 air miles NE of Bieber, Big Valley. Comment
  JEPS122243  Lactuca serriola Lowell Ahart 2014-9-9 19861 Plumas On the west side of Sly Creek Reservoir, about 9 miles (air) southwest of La Porte. Comment
  JEPS122455  Lactuca serriola L. P. Janeway 2014-11-6 11581 Yuba Northern High Sierra Nevada. Plumas National Forest; along Oregon Hill Road 0.5 km northeast of Road 18N11; 0.9 air-km north-west of Summit Hill; slope above Burnt Bridge Creek. Quad: Challenge 7.5'. Comment
  JEPS124014  Lactuca serriola Lowell Ahart, John Dittes 2015-8-5 20430 Tehama East side of Childs Meadow, 150 yards west of Highway 36, 0.69 air-miles northwest of intersection of State Highway 36 and Wilson Lake Road (County Road 769), 1.2 air-miles east of Doe Mountain, 9.77 air-miles south of Lassen Peak. Comment
  JEPS126387  Lactuca serriola Steve Matson 1998-9-1 399 Placer Tahoe north shore Watershed, Tahoe Vista/Kings Beach; West Fork Snow Creek about 300 yards NW of pond. Comment
  JEPS128217  Lactuca serriola Roger Raiche 2000-5-5 099 .00 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  JEPS21630  Lactuca serriola Roxana S. Ferris and W. R. Ernst 1957-9-15 13115 Mono junction of U.S. Highway 395 and Green Lake Road (5 mi s Bridgeport); Green Creek Comment
  JEPS21633  Lactuca serriola R. S. Ferris and W. R. Ernst 1957-9-15 13115 Mono junction of U.S. Highway 395 and Green Lake Road (5 mi s Bridgeport); Green Creek Comment
  JEPS21698  Lactuca serriola John H. Thomas 1955-8-1 5303 Santa Clara near South Bay Yacht Club; Alivo Slough 0 Comment
  JEPS21699  Lactuca serriola J. H. Thomas 1953-7-29 3566 Santa Cruz n end Hilton Airport (between airstrip and highway) 243 Comment
  JEPS24271  Lactuca serriola John H. Thomas 1959-8-27 8124 Santa Cruz near intersection of Main St. and Southern Circle; Watsonville Comment
  JEPS30665  Lactuca serriola Peter H. Raven and Henry J. Thompson 1959-9-18 14428 Los Angeles Santa Monica Boulevard near Beverly Glen Boulevard; Santa Monica Mountains, West Los Angeles 76 Comment
  JEPS31024  Lactuca serriola Ernest C. Twisselmann 1960-9-7 6001 Kern 1 mi n Choice Valley School; Temblor Range and Western San Joaquin Valley, Choice Valley 601 Comment
  JEPS33407  Lactuca serriola Ernest C. Twisselmann 1963-11-22 9096 Kings just w Stratford; Kings River 60 Comment
  JEPS34254  Lactuca serriola Rimo Bacigalupi and L. Heckard 1962-11-6 8747 Stanislaus .3 mi n Merced County line (between U.S. 99 and Southern Pacific Railway); San Joaquin Valley Comment
  JEPS35286  Lactuca serriola Peter H. Raven 1964-3-25 18749 San Luis Obispo above and e Cambria Comment
  JEPS36686  Lactuca serriola Carl V. Meyer 1928-8-10 639 San Diego Escondido Comment
  JEPS36687  Lactuca serriola V. F. Hesse 1943-8-1 346 Santa Cruz Boulder Creek 182 Comment
  JEPS36688  Lactuca serriola V. F. Hesse 1943-8-7 349 Santa Cruz Boulder Creek 182 Comment
  JEPS36697  Lactuca serriola W. L. Jepson 1938-8-23 19014 Alameda Sugar Loaf Pass Berkeley Hills Comment
  JEPS36698  Lactuca serriola W. L. Jepson 1938-8-23 19014 Alameda Sugar Loaf Pass Berkeley Hills Comment
  JEPS36700  Lactuca serriola W. L. Jepson 1894-9-1 Alameda Berkeley Comment
  JEPS36701  Lactuca serriola Willis L. Jepson 1896-8-21 Solano Little Oak Comment
  JEPS36702  Lactuca serriola Willis L. Jepson 1896-8-21 Solano Little Oak Comment
  JEPS36705  Lactuca serriola S. B. Parish 1895-7-20 3610 San Bernardino streets San Bernardino 304 Comment
  JEPS36713  Lactuca serriola W. L. Jepson 1940-10-2 20146 Monterey Gonzales Salinas Valley Comment
  JEPS36714  Lactuca serriola W. L. Jepson 1929-10-1 15339 Glenn Orland 60 Comment
  JEPS36715  Lactuca serriola W. L. Jepson 1922-9-16 9819 Alameda Strawberry Canyon Berkeley Hills Comment
  JEPS36745  Lactuca serriola R. F. Hoover 1934-12-17 169 Stanislaus Modesto Comment
  JEPS36746  Lactuca serriola Joseph P. Tracy 1926-9-6 7794 Humboldt near South Fork Trinity River; Northern Coast Ranges, Trinity River Valley 182 Comment
  JEPS52176  Lactuca serriola Ernest C. Twisselmann 1966-9-8 12794 Kern s shore Castaic Lake; Tehachapi Mountains, Castaic Lake 1051 Comment
  JEPS7477  Lactuca serriola Rimo Bacigalupi with L. R. Heckard 1951-8-8 3480 Plumas just e Westwood 1554 Comment
  JEPS84557  Lactuca serriola John W. Willoughby 1976-7-15 1756 Solano between Mix Canyon and Gates Canyon roads (along Pleasants Valley Road); Vaca Mountains 106 Comment
  JEPS94452  Lactuca serriola Lowell Ahart 1997-8-13 7842 Nevada about 1.5 mi w of Penn Valley (along sides of Penn Valley Road, just e of intersection of Indian Springs Road and Penn Valley Road, just s of Highway 20); Penn Valley Road 426 Comment
  JEPS94453  Lactuca serriola Lowell Ahart 1997-8-13 7843 Nevada about 1.5 mi w of Penn Valley (along sides of Penn Valley Road, just e of intersection of Indian Springs Road and Penn Valley Road, just s of Highway 20); Penn Valley Road 426 Comment
  JEPS94951  Lactuca serriola Lowell Ahart 1996-10-10 7706 Plumas 1 mi w of Blue Nose Mountain (about 2 mi e of Pilot Peak, on w side of dirt road at Turkey Town); Turkey Town 1676 Comment
  JEPS95145  Lactuca serriola Lowell Ahart 1996-10-10 7706 Plumas 1 mi w of Blue Nose Mountain (about 2 mi e of Pilot Peak, on w side of dirt road at Turkey Town); Turkey Town 1676 Comment
  JEPS96112  Lactuca serriola Vernon H. Oswald and Lowell Ahart 1996-7-22 8081 Butte US Fish and Wildlife Service parcel between 7 Mile Lane and Sacramento River (on w side of levee at sw corner of Tract 6, Sanctuary 1); Sacramento River Wildlife Refuge, Llano Seco Unit 30 Comment
  JEPS99763  Lactuca serriola Melanie Arnett, Linda Mutch 2001-8-22 8477 Madera Devils Postpile National Monument; E-facing 12% midslope of small knoll in undulating topography in the Buttresses. Loose pumice over sandy loam. 2400 Comment
  JOTR28825  Lactuca serriola La Doux, Tasha, Glenn Clifton 2004-5-6 1093 San Bernardino Joshua Tree National Park. Little San Bernardino Mountains; bouldery outcrops with small ephemeral washes in restricted area northeast of Key's Ranch 1270 Comment
  JROH949  Lactuca serriola John H. Thomas 1964-11-29 10535 San Mateo Jasper Ridge Biological Preserve, Stanford University; W end of Searsville Dam Comment
  JROH950  Lactuca serriola John H. Thomas 1971-8-5 16012 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH951  Lactuca serriola John H. Thomas 1974-6-30 17459 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH952  Lactuca serriola John H. Thomas 1974-10-26 17633 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH953  Lactuca serriola John Hunter Thomas 1978-7-14 19264 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville entrance Comment
  LA32080  Lactuca serriola Peter H. Raven; Henry J. Thompson 1959-9-18 sn Los Angeles West Los Angeles, along railroad tracks, Santa Monica Boulevard near Beverly Glen Boulevard 76 Comment
  OBI33044  Lactuca serriola David J. Keil 1983-9-10 17943 San Luis Obispo Vicinity of Arroyo de la Cruz N of San Simeon Comment
  OBI51201  Lactuca serriola Jan Barber 1994-5-29 184 San Luis Obispo San Simeon State Park; N of Washburn campground Comment
  OBI51936  Lactuca serriola Larry Kelly, David J. Keil 1988-10-1 297 San Luis Obispo Pismo marsh between Pismo State Beach campground and Grand Ave Comment
  OBI54846  Lactuca serriola David J. Keil 1996-9-13 26049 San Luis Obispo Along Shell Creek Road, ca. 1/4?3/4 miles n of Hwy 58. Comment
  OBI67271  Lactuca serriola David J. Keil 1991-10-26 22679 Santa Barbara Vandenberg Air Force base, North base. barka slough, near eastern boundary of base along san antonio creek. areas of freshwater marsh, riparian woodland, and salt-marsh meadow. Comment
  OBI79061  Lactuca serriola David J. Keil 2013-8-22 31915 San Luis Obispo Morro Bay State Park. Vicinity of Quarry Trail trailhead along South Bay Blvd. 10 Comment
  OBI79258  Lactuca serriola David J. Keil, with CNPS field trip 2012-4-7 31248 San Luis Obispo Shell Creek Road north of Highway 58 465 Comment
  OBI80775  Lactuca serriola David J. Keil 1992-10-19 23847 San Luis Obispo Laguna Lake Park. Prefumo Canyon inlet. 170 Comment
  POM147745  Lactuca serriola E. E. Stanford 1927-7-21 669 San Joaquin Stockton. Comment
  POM158108  Lactuca serriola L. R. Abrams 1902-8-18 2956 Los Angeles Ballona Creek, near Mesmer Comment
  POM202181  Lactuca serriola L. M. Booth 1932-7-19 1283 Orange Bolsas Marsh. Comment
  POM248405  Lactuca serriola Philip Crow 1939-07 8 Riverside Blythe. Comment
  POM290102  Lactuca serriola Lyman Benson 1932-8-19 4051 Santa Clara Stanford University. 30 Comment
  POM290103  Lactuca serriola Lyman Benson 1932-8-7 4044 Lake Kelseyville, Mt. Range: Middle N Coast; Watershed: Kelsey Creek. 457 Comment
  POM290104  Lactuca serriola Lyman Benson 1932-8-15 4049 Santa Clara Stanford University. 30 Comment
  POM361392  Lactuca serriola F. R. Fosberg 1930-11-17 4186 San Bernardino 3 mi. SE of Chino. 240 Comment
  POM361394  Lactuca serriola M. B. Dunkle 1937-6-27 s.n. San Bernardino Redlands. Comment
  POM361395  Lactuca serriola F. R. Fosberg 1931-8-17 7362 San Diego Cuyamaca Lake. 1120 Comment
  POM361396  Lactuca serriola H. M. Pollard 1959-9-5 s.n. Santa Barbara Fairview Road near Airport, Goleta. Comment
  RSA0020424  Lactuca serriola Duncan S. Bell, Caitlin Elam 2013-7-30 5511 San Bernardino South side of Big Bear Lake, near the mouth of Knickerbocker Canyon in the vicinity of Snow Point, collecting in an area that appears to be an abandoned ski slope. 2148 Comment
  RSA0020534  Lactuca serriola Duncan S. Bell, Caitlin Elam 2013-7-30 5545 San Bernardino Southeast side of Big Bear Lake, collecting at a small spring and on open slopes at the base of the Snow Summit ski slopes not far from parking area. 2162 Comment
  RSA0020779  Lactuca serriola Naomi Fraga, Terri Granillo 2012-7-26 4038 San Bernardino Small drainage along Polique Canyon Road (2N09), just north of its intersection with FS Road 2N71. 2255 Comment
  RSA0020824  Lactuca serriola Naomi Fraga, Joella Simons Adkins, Terri Granillo, Aaron Sedwick, Jennifer Pilapil 2012-8-1 4049 San Bernardino North Fork Creek off of Mill Creek Road (2N10). 2287 Comment
  RSA0021345  Lactuca serriola Duncan S. Bell, Caitlin Elam 2013-7-30 5480 San Bernardino Southeast side of Big Bear Lake, on ski slopes downhill from Snow Summit. 2369 Comment
  RSA0021713  Lactuca serriola Duncan S. Bell, Caitlin Elam 2013-6-24 5263 Los Angeles Sheep Mountain Wilderness; East Fork of the San Gabriel River, below Airplane Flat, behind the Bridge To Nowhere. 870 Comment
  RSA0027432  Lactuca serriola Fred M. Roberts 2013-7-18 7666 Orange San Joaquin Hills: Newport Beach, Buck Gully, along Buck Gully Trail, about 0.7 km from the north terminus of Poppy Street and 1.8 km WNW summit of Pelican Hill. 52 Comment
  RSA0027524  Lactuca serriola Duncan S. Bell, Amanda Turek 2010-9-5 1943 San Bernardino Sawtooth Mountains; unnamed drainage between Sorrel Horse Canyon and Pipes Canyon below Chaparrosa Peak, about 3.5 air miles west of Pioneertown. 1532 Comment
  RSA0028322  Lactuca serriola Duncan S. Bell, Grace Cho, Sarah Fisher 2013-7-25 5468 San Bernardino San Bernardino National Forest; collecting on the western section of the Snow Summit ski slopes from 34.22385, 116.88835 to 34.22729, 116.89797. 2457 Comment
  RSA0050063  Lactuca serriola Duncan S. Bell, Glenn Morrison, Katie Roland 2014-6-4 s.n. San Bernardino Bighorn Mountains; San Bernardino National Forest; collecting in Arrastre Creek, at the southeast end of Horsethief Flat. 1469 Comment
  RSA0053933  Lactuca serriola Duncan S. Bell, Sarah DeGroot, Cheryl Sevilla 2014-7-9 7351 San Bernardino San Bernardino National Forest; Bighorn Mountains; collecting in Arrastre Creek in narrow section below (down stream) from Horsethief Flat, near old dam area. 1415 Comment
  RSA0063997  Lactuca serriola Nick Jensen, Katie Gallagher, Abby Hird, Evan Meyer 2014-6-13 2249 Kern Tejon Ranch. Meadow east of the National Cement Plant and south of the Contour Road. 1026 Comment
  RSA0068370  Lactuca serriola Nick Jensen, Neal Kramer 2014-9-8 2528 Kern Tejon Ranch. Eastern fork of Bronco Canyon, Tunnel Spring area at the base of the Tehachapi Mountains. 399 Comment
  RSA0076023  Lactuca serriola Erika M. Gardner, Jennifer Pilapil 2013-8-7 444 Kern Scodie Mountains; Kiavah Wilderness; Sequoia National Forest. About 0.10 miles east of McIver's spring. Along old trail, unmarked closed trail. 2005 Comment
  RSA0080742  Lactuca serriola R. G. Swinney 2010-8-11 13515 Los Angeles Big Santa Anita Canyon, 100-200 m below Chantry Flats on Chantry Flat Trail/Rd. 598 Comment
  RSA0084783  Lactuca serriola R. G. Swinney 2010-6-23 13316 Los Angeles Big Tujunga Ponds (Wildlife Sanctuary) Natural Area, c. 200 meters west of I-210 Fwy., at the far east end of the Hansen Dam Basin. 341 Comment
  RSA0092071  Lactuca serriola Sarah J. De Groot, Noravit Chumchim 2015-7-30 7526 Ventura The Nature Conservancy Vulcan property, east end; Santa Clara River drainage about 1.6 miles up Santa Clara River from confluence with Piru Creek, just southeast of Camulos and ~2.5 miles east-southeast of Piru., About 8.5 miles west of Interstate 5 along Highway 126. North of Oak Ridge, south of Topatopa Mountains. Along the Oak Ridge Fault. 214 Comment
  RSA0094464  Lactuca serriola Duncan S. Bell 2015-8-13 8597 San Bernardino The southeastern end of the Bighorn Mountains; collecting in the upper section of Hondo Wash to the northwest of Flat Top Mesa and Black Lava Butte, from 34.24249, 116.49605 to 34.24775, 116.51626. 1280 Comment
  RSA0094466  Lactuca serriola Duncan S. Bell 2015-8-12 8595 Riverside Orocopia Mountains; southwestern section of the range, collecting at a spring in the southern section of the Dos Palmas area. Temperature at around 120 degrees. -41 Comment
  RSA0105016  Lactuca serriola R. G. Swinney 2011-10-27 15916 Los Angeles San Gabriel Mountains: West Fork San Gabriel River, c. 300 meters east (downstream) of entrance gate to Cogswell Dam, between FS Rd 2N25 and the stream 649 Comment
  RSA0113392  Lactuca serriola Jon Rebman, W. Schmidtmann, G. Kenney 2015-8-4 30460 San Diego Camp Pendleton: central portion of Base; north of Lake O'Neill Rd.; northeast side of Lake O'Neil in the vicinity of a bridge over a small wetland. 36 Comment
  RSA0113791  Lactuca serriola LeRoy Gross, Sarah J. De Groot 2016-8-31 7654 Ventura Strathmore Property. South of Montalvo, west of the 101 freeway, and east of Victoria Ave. 15 Comment
  RSA0116806  Lactuca serriola Richard G. Swinney 2010-10-5 13965 Los Angeles San Gabriel Mountains: Placerita Cyn., Placerita Canyon Natural Area, 50-300 meters west of Nature Center. 463 Comment
  RSA0121183  Lactuca serriola Duncan S. Bell, LeRoy Gross 2016-8-10 10126 San Bernardino San Gorgonio Wilderness area; collecting in steep hills between Lost Creek and Fish Creek, approximately 2.25 air miles northwest of the summit of Grinnell Mountain. 2202 Comment
  RSA0125181  Lactuca serriola Duncan S. Bell 2016-10-27 10205 Riverside Whitewater Canyon area; collecting in Rainbow Canyon, 2.75 air miles northwest of the Whitewater Ranger Station (trout ponds). 1024 Comment
  RSA0125200  Lactuca serriola Duncan S. Bell, Joy England 2016-8-2 10078 San Bernardino San Bernardino National Forest; along the South Fork Trail, not too far from the trailhead, near the northwestern corner of Horse Meadows. 2224 Comment
  RSA124557  Lactuca serriola Chas. H. Quibell, Edith M. Quibell 1953-9-26 3560 Fresno West Belmont Ave. somewhere near Jameson Ave.- about 11 miles west of Fresno on the flat of the San Joaquin Valley. Comment
  RSA135756  Lactuca serriola John H. Thomas 1953-7-29 3566 Santa Cruz Northern end of Hilton Airport, between airstrip and highway. 244 Comment
  RSA135759  Lactuca serriola John H. Thomas 1954-8-12 4575 Santa Clara Summit Los Gatos - Santa Cruz Hwy, State Hwy 17, near county line. 610 Comment
  RSA187500  Lactuca serriola John H. Thomas 1953-7-29 3566 Santa Cruz Foot of Blooms Grande along Big Basin - Boulder Creek Highway, opposite Hilton Airport. 244 Comment
  RSA188133  Lactuca serriola R. F. Thorne 1966-4-29 36276 Los Angeles Santa Catalina Island: above ranch in Middle Ranch Canyon 229 Comment
  RSA192095  Lactuca serriola H. A. Zuill 1966-7-26 300 Riverside About 7.5 miles SW of Murrieta. Comment
  RSA210530  Lactuca serriola J. T. Howell, G. H. True 1967-9-21 43966 Tulare About 4.5 miles ENE of Pixley. 84 Comment
  RSA23429  Lactuca serriola C. B. Wolf 1940-5-26 9595 San Bernardino Mojave Desert, Clark Mt. Coliseum Mine. Ft. 1524 Comment
  RSA234473  Lactuca serriola James Henrickson 1970-7-25 5065 Orange 2 miles N of Huntington Beach along NE margin of Bolsa Chica Salt March. 0 Comment
  RSA2356  Lactuca serriola J. W. Blankinship 1928-7-13 s.n. Lake Mt. Konocti 610 Comment
  RSA266381  Lactuca serriola J. C. Roos 1937-8-17 2546 Riverside San Jacinto. Comment
  RSA292356  Lactuca serriola James Henrickson 1978-10-20 17694 Inyo Ca. 18 air miles SW of Olancha, ca 11.5 air miles E of Dunmovin at Haiwee Spring area. Comment
  RSA311623  Lactuca serriola B. A. Prigge 1983-8-8 4986 Kern Indian Wells Valley; Lark Seep 671 Comment
  RSA334262  Lactuca serriola R. F. Thorne, T. P. Krantz, L. M. Shultz 1980-10-3 54829 San Bernardino San Bernardino National Forest; Burnt Flat. Comment
  RSA339064  Lactuca serriola R. F. Thorne, T. P. Krantz 1982-8-20 55160 San Bernardino San Bernardino National Forest: Lower Holcomb Creek Botanical Area, near creek where crossed by road N from Fawnskin, N of Delamar Mt., W of Hitchcock Ranch 2195 Comment
  RSA443520  Lactuca serriola A. C. Sanders 1987-9-18 7360 Los Angeles El Segundo Dune, W of Los Angeles International Airport and Pershing Dr. 38 Comment
  RSA463938  Lactuca serriola James D. Morefield 1984-8-4 2460 b Inyo White Mtns: Antelope Springs, Deep Srpings Valley drainage 1692 Comment
  RSA510312  Lactuca serriola Ed LaRue 1989-6-11 s.n. Riverside W side of Lakeview Mtns., ca. 1 mi SE of town on Nuevo. 640 Comment
  RSA518570  Lactuca serriola Steven A. Junak 1985-10-17 sn 161 Ventura San Nicolas Island: on mesa, at living compound, across road from Public Works building 122 Comment
  RSA522307  Lactuca serriola Steve Boyd 1989-7-9 3777 Riverside City of Riverside, 4863 Rubidoux Ave. Comment
  RSA552139  Lactuca serriola Alan Romspert 1966-5-22 336 Inyo Surprise Canyon, Panamint Mts, Death Valley National Monument. 1220 Comment
  RSA561415  Lactuca serriola Steve Boyd, T. S. Ross, D. E. Bramlet 1992-9-9 7678 Riverside Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Upper San Mateo Canyon, from the junction of Tenaja Road (7S01) and Los Almos Road (7S04) and the confluence of Los Almos Creek., Up the San Mateo Trail north to Potrero de la Cienega. 396 Comment
  RSA572891  Lactuca serriola D. L. Banks, S. D. Boyd 1994-9-29 0008 San Diego NW Palomar Mountains; Agua Tibia Mountains; Cleveland National Forest, Agua Tibia Wilderness. E slope of Agua Tibia Mtn., W of Arroyo Seco Drainage, along the Crosley Trail 979 Comment
  RSA5802  Lactuca serriola C. B. Wolf 1932-6-28 3780 Orange Along western half of no. boundary of 40 acre Valencia Orange grove at Bryant Ave. and Hansen Road. 9 Comment
  RSA589083  Lactuca serriola D. L. Banks, S. D. Boyd 1995-10-17 0794 Riverside NW Palomar Mountains. Agua Tibia Mountains. Cleveland National Forest. Agua Tibia Wilderness Area. Along lower Arroyo Seco. S of the Dripping Springs Campground. Along the narrow benches where Arroyo Seco turns E., Just W of the Metasedimentary hills. 524 Comment
  RSA589330  Lactuca serriola Timothy S. Ross, Gery Allan, Mark Elvin, Jennifer Stone 1995-5-19 8589 Los Angeles San Clemente Island: Northern tributary of Canchalagua Canyon, ca. 1070 ft NNE of the 1135-ft trangulation point. 256 Comment
  RSA591174  Lactuca serriola Steven A. Junak 1991-8-2 sc 2816 Santa Barbara Santa Cruz Island. Just S of top of steep portion of road to China Harbor beach. 207 Comment
  RSA594456  Lactuca serriola Steve Boyd, Lauren Raz 1996-9-24 8952 Los Angeles Liebre Mountains, Knapp Ranch area at upper end of Castaic Creek drainage in broad alluvial valley at head of Cienaga Canyon, south of Liebre Mountain 915 Comment
  RSA594930  Lactuca serriola Steve Boyd, Lauren Raz 1996-10-8 8996 Los Angeles Liebre Mountains region, Bouquet Canyon ca. 1.7 miles south of junction with Forest Service Road 6N08. 561 Comment
  RSA599742  Lactuca serriola L. C. Wheeler 1967-11-18 s.n. Los Angeles San Gabriel Mountains : Old Point Comfort; Big Rock Creek. 1280 Comment
  RSA601765  Lactuca serriola Steven A. Junak 1989-9-6 sn 421 Ventura San Nicolas Island: NW end of mesa, along Tufts Road near water well buildings (buildings 132-134). 168 Comment
  RSA603404  Lactuca serriola L. C. Wheeler 1975-8-22 s.n. Los Angeles San Gabriel Mountains: North side Sunset Ridge by Millard Canyon, by power line. Comment
  RSA608105  Lactuca serriola Steven A. Junak 1989-7-13 416 Ventura San Nicolas Island, NE portion of mesa, just S of western end of airfield runways. 152 Comment
  RSA608301  Lactuca serriola L. C. Wheeler 1946-9-2 6341 Los Angeles San Gabriel Mountains: West Fork San Gabriel Canyon, 0.5 mile W of Bear Creek. 518 Comment
  RSA611361  Lactuca serriola L. C. Wheeler 1968-9-8 s.n. Los Angeles San Gabriel Mountains: Mountain Brook Ranch 1159 Comment
  RSA616727  Lactuca serriola L. C. Wheeler 1966-8-20 8814 Los Angeles San Gabriel Mountains: Cabin Flat, Prairie Fork. Comment
  RSA630338  Lactuca serriola Scott D. White 1996-9-22 4543 Riverside Nuevo Road near intersection with Wilson Ave., W of the San Jacinto River crossing. 430 Comment
  RSA631390  Lactuca serriola Valerie L. Soza, LeRoy Gross 1999-5-10 460 Los Angeles Foothills above Glendora, west of Colby Trail, at end of Loraine Avenue 377 Comment
  RSA640959  Lactuca serriola L. C. Wheeler 1931-7-22 s.n. Los Angeles La Verne: Wheeler's residence. Comment
  RSA670651  Lactuca serriola B. C. Templeton 1931-7-6 1528 Alameda Berkeley. Comment
  RSA678334  Lactuca serriola Sarah J. DeGroot 2002-8-4 788 San Diego Hidden Meadows 92026. Comment
  RSA696130  Lactuca serriola A. C. Sanders, Mark Elvin, Jane Rodgers 2001-8-17 24604 Riverside Mojave Desert, Little San Bernardino Mtns.: Stubbe Spring, Joshua Tree National Park, 4.35 mi. (airline) SW from park road in Lost Horse Valley 1341 Comment
  RSA702197  Lactuca serriola Scott D. White, Pam De Vries 2004-6-14 10493 -A Los Angeles Eastern Santa Susana Mountains. West of the I-5 Freeway, ca. 4 mi N of I-5 / SH-14 jtn and 6 mi S of Castaic Junction. Lyon Canyon and surrounding slopes, canyons, and ridges. 396 Comment
  RSA702978  Lactuca serriola Scott D. White 2004-7-27 10632 Los Angeles San Gabriel Mtns. Clear Creek area. Roadside and hiking trail S side of Angeles Forest Hwy, ca. 0.2 mi W of jtn with Angeles Crest Hwy. 1067 Comment
  RSA703140  Lactuca serriola Fred M. Roberts, Art Davenport 2003-9-11 6016 Orange Rancho Mission Viejo: Donna O' Neill Land Conservancy. Cristianitos Cyn., 0.79 km N Sycamore Gate 0.23 km w of Crisianitos Road. 126 Comment
  RSA703546  Lactuca serriola Michael Honer 2004-6-22 2008 Los Angeles San Gabriel Mountains: San Antonio Canyon. Along Mt. Baldy Road between Spruce Canyon and 'Hog Back.' 854 Comment
  RSA703857  Lactuca serriola J. P. Rebman, Jeannie Gregory 2003-10-7 9588 San Diego Laguna Mountains: Lucky 5 Ranch; southern portion of new acquisition by California State Parks; east side of Sunrise Hwy (S-1) between Cuyamaca Lake and Mount Laguna. 1675 Comment
  RSA710727  Lactuca serriola Valerie L. Soza, LeRoy Gross, Marisa Sripracha 2001-7-20 1347 Los Angeles La Tuna Canyon, along La Tuna Canyon Road. 427 Comment
  RSA714006  Lactuca serriola A. C. Sanders, T. B. Salvato 2005-10-14 31881 San Diego Peninsular Range: Boden Canyon Ecological Reserve (DFG), tributary of Santa Ysabel Creek and the pond (reservior) in middle DFG parcel, W & SW foot of Orosco Ridge. 244 Comment
  RSA725536  Lactuca serriola Fred M. Roberts, Robert L. Allen 2007-9-28 6610 Orange Santa Ana Mtns.: Silverado Cyn., along Silverado Cyn. Rd. at eastern edge of town of Silverado. 347 Comment
  RSA733131  Lactuca serriola R. G. Swinney 1998-8-1 6603 Los Angeles Mine Gulch at East Fork of San Gabriel River Canyon. Open canyon bottom, lower Mine Gulch with no riparian development except right at aconfluence; sandy-silty soil with rocks. 1341 Comment
  RSA733243  Lactuca serriola Melvin M. Sweet 2006-7-21 375 San Diego City of San Diego; along utility road in canyon running from Eastgate mall (3/4 mile NW of the intersection of Eastgate and Genesee Ave) to the end of Roselle st. (about 1/2 mile E from the intersection of I-5 and I-805). 70 Comment
  RSA736792  Lactuca serriola Scott D. White, Angelia Carey 2004-7-2 10572 Riverside San Jacinto Mountain foothills: Soboba Indian Reservation, Poppet Creek Canyon. 549 Comment
  RSA740453  Lactuca serriola Orlando Mistretta 2008-7-17 3405 San Bernardino Santa Ana River Canyon; along Forest Road 2N06 (Radford Road) 2297 Comment
  RSA746963  Lactuca serriola George K. Helmkamp, E. A. Helmkamp 2008-10-14 14244 Colusa Sacramento Valley: along CA-20, 0.2 mile east of the Sutter County Line 9 Comment
  RSA747937  Lactuca serriola Sarah J. De Groot, Duncan S. Bell, Tom Kerrins-Torres 2009-7-22 6229 San Bernardino West ridge of Sugarloaf Mountain. 2748 Comment
  RSA74883  Lactuca serriola Elroy Robinson 1935-9-14 s.n. Contra Costa Martinez Comment
  RSA751077  Lactuca serriola Justin M. Wood, Dustin Ray 2009-7-9 1047 San Bernardino Cienega Seca Creek, between Heart Bar Campground (Fish Creek Trail) and 7,000 ft. 2095 Comment
  RSA752600  Lactuca serriola Scott D. White, J. D. England 2009-7-8 13247 -B San Bernardino San Bernardino Mountains: Cienega Seca Creek, between Heart Bar Campground (Fish Creek Trail) and 7,000 ft. 2095 Comment
  RSA752818  Lactuca serriola A. C. Sanders, Fred M. Roberts 2008-8-7 36001 Orange Weir Canyon at powerline crossing, 1.0 mi. (air) SSE of Walnut Canyon Reservoir 226 Comment
  RSA754844  Lactuca serriola L. Ahart 2009-8-9 16269 Butte Rice field, Peter Ahart Ranch, about 2.5 miles north and 3/4 mile east of Honcut, about 12 air miles south of Oroville. 32 Comment
  RSA756604  Lactuca serriola Michael Honer 2007-10-17 2780 Inyo West Bishop: along Mumy Lane, appx. 0.25 mi. S of Hwy 168. 1335 Comment
  RSA758863  Lactuca serriola J. R. Shevock, Dana York 1995-9-22 12318 Fresno Horseshoe Bend along California Highway 180, Kings River drainage. 976 Comment
  RSA759155  Lactuca serriola A. C. Sanders, Fred M. Roberts 2008-6-17 35457 Orange Lomas de Santiago, Hicks Canyon Haul Road 0.5 mi. east of the Foothill Transportation Corridor 244 Comment
  RSA759705  Lactuca serriola J. R. Shevock, Dana York 1995-9-22 12318 Fresno Horseshoe Bend along California Highway 180, Kings River drainage. 976 Comment
  RSA759811  Lactuca serriola Pam De Vries 2010-6-14 7697 Kern Western Transverse Range; San Emigdio Mountains; Bitter Creek National Wildlife Refuge, approx. 2.5 air miles southeast of the intersection of Cerro Noroeste Road and Highway 33. Management Unit 8-9 boundary near water tanks. 1129 Comment
  RSA761307  Lactuca serriola Barbara Booth, Justin M. Wood, Dustin Ray 2009-7-14 196 San Diego Oak Grove Valley, near intersection with Highway 79 and Oak Grove Truck Trail. 851 Comment
  RSA766580  Lactuca serriola Duncan S. Bell, Dolores Gault, Kathleen Ashbaker 2010-7-13 1599 San Bernardino San Bernardino National Forest: collecting on a slope south of forest service road 2N27, between Moon Ridge and Green Canyon, in the vicinity of Green Spot. 2261 Comment
  RSA768498  Lactuca serriola LeRoy Gross, Jose D. Zuniga 2010-8-17 5293 San Bernardino Sugarloaf Meadow area. Near the base of the southwest side of Sugarloaf Mountain, north of the Santa Ana River. 2064 Comment
  RSA768737  Lactuca serriola Duncan S. Bell, Jacqueline McConnaughy, Andrew Monks, John Fleet 2010-8-31 1881 San Bernardino San Bernardino National Forest: at the head of Green Canyon; approximately 0.9 air mile northwest of junction of Wildhorse Meadows road and forest service road 2N92. 2680 Comment
  RSA768894  Lactuca serriola Duncan S. Bell, Andrew Monks, Kathleen Ashbaker 2010-8-17 1800 San Bernardino San Bernardino National Forest: the upper Santa Ana River watershed, at the confluence of Cienega Seca and Little Cienega Seca Creeks. 2364 Comment
  RSA770265  Lactuca serriola Duncan S. Bell, Jacqueline McConnaughy, Andrew Monks 2010-8-24 1839 San Bernardino San Bernardino National Forest: at an unmapped spring below an old mining road above Green Canyon, approximately 0.4 mile west of Green Spring. 2609 Comment
  RSA770279  Lactuca serriola Duncan S. Bell, Jose D. Zuniga, Joshua Paolini 2010-7-26 1678 San Bernardino San Bernardino National Forest: in Green Canyon, at Green Spring; approximately 1.3 miles up stream from junction of Wildhorse Meadows road and Green Canyon. 2578 Comment
  RSA770406  Lactuca serriola Duncan S. Bell, Kathleen Ashbaker 2010-8-25 1852 San Bernardino San Bernardino National Forest: in the vicinity of Green Spot; approximately 0.7 air mile west of Wildhorse Meadows road and Sand Canyon road. 2254 Comment
  RSA770457  Lactuca serriola Duncan S. Bell, Jacqueline McConnaughy, Andrew Monks 2010-8-24 1835 San Bernardino San Bernardino National Forest: Green Canyon; approximately 0.3 air mile southeast of junction of Wildhorse Meadows road and Green Canyon. 2382 Comment
  RSA770664  Lactuca serriola Duncan S. Bell, Jacqueline McConnaughy, Colleen Wheeler 2010-8-9 1748 San Bernardino San Bernardino National Forest: at an unnamed and unmapped spring along forest service route 2N77; approximately 0.7 air mile southwest of the junction of Wildhorse Meadows road and Sand Canyon road. 2364 Comment
  RSA774341  Lactuca serriola Pam De Vries, Alexandra Morton, Justin Epling 2010-10-21 7713 Kern Western Transverse Range; San Emigdio Mts.; Bitter Creek National Wildlife Refuge, approx. 4.5 air mile ESE of the intersection of Cerro Noroeste Rd. and Hwy 33. Management unit 2, northwest area. 755 Comment
  RSA774342  Lactuca serriola Pam De Vries, Alexandra Morton, Justin Epling 2010-10-21 7713 Kern Western Transverse Range; San Emigdio Mts.; Bitter Creek National Wildlife Refuge, approx. 4.5 air mile ESE of the intersection of Cerro Noroeste Rd. and Hwy 33. Management unit 2, northwest area. 755 Comment
  RSA775443  Lactuca serriola Orlando Mistretta, Duncan Bell, Jill Beckman, J. D. England, Katie Kane, Jamie Hall, Chris McDonald, Lucila Reccia 2010-4-12 4445 Riverside Whitewater canyon. Along Whitewater River drainage and adjacent slopes below Whitewater Visitor center (Whitewater Trout Farm) in the vicinity of Bonnie Bell. Between N33.94217, W116.64118 and N33.94722 W116.64305. 487 Comment
  RSA776411  Lactuca serriola David Pritchett 1986-8-19 VP- 17 Santa Barbara Del Sol Vernal Pool Reserve, SE corner El Colegio Rd and Camino Lindo, Isla Vista. 9 Comment
  RSA779574  Lactuca serriola Duncan S. Bell, Jennifer Pilapil, Lindsay Ward, Terry Higgins 2011-6-29 2715 San Bernardino San Bernardino National Forest: northwest of Holcomb Valley, just west of Big Pine Flat, approximately 0.75 air mile southwest of where forest service road 3N16 crosses Greenlead Creek. 2326 Comment
  RSA779798  Lactuca serriola Duncan S. Bell, LeRoy Gross 2010-9-16 1952 San Bernardino San Bernardino National Forest: west of Holcomb Valley, south side of forest service road 3N16, approximately 0.6 air mile northwest of Hitchcock Spring. 2309 Comment
  RSA781670  Lactuca serriola Duncan S. Bell, Jennifer Pilapil, Stephanie Rockwood 2011-8-2 2844 San Bernardino San Bernardino National Forest: northwest of Holcomb Valley, approximately 0.25 air mile west of the junction of forest service road 3N16 and forest service road 3N77, just south of forest service road 3N17. 2350 Comment
  RSA781891  Lactuca serriola Duncan S. Bell, Lindsay Ward 2011-7-25 2811 San Bernardino San Bernardino National Forest: northwest of Holcomb Valley, just above Holcomb Creek, approximately 0.5 air mile southwest of the junction of forest service road 3N16 and forest service road 3N08, approximately 1 air mile east of Hitchcock Spring. 2188 Comment
  RSA784731  Lactuca serriola Duncan S. Bell 2012-3-18 3198 Riverside The Mecca Hills; southeastern section of hills; at mouth of Hidden Canyon where drainage is blocked by the Coachella Canal, approximately 2.8 air miles southwest of Hidden Spring. 20 Comment
  RSA786956  Lactuca serriola R. F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49541 Riverside Santa Ana Mountains: along Ortega Highway (74), perhaps 1/4 mile west of El Cariso Comment
  RSA787378  Lactuca serriola Naomi Fraga, Joshua Paiolini, Jennifer Pilapil 2010-8-11 3712 San Bernardino Along the Santa Ana River along Santa Ana River Road; Rocky road bench near rivier 1700 Comment
  RSA792633  Lactuca serriola Naomi Fraga, Jennifer Pilapil 2011-7-20 3881 San Bernardino Off FS Road 2N89 toward Hitchcock Spring from FS Rd. 3N16. 2287 Comment
  RSA794945  Lactuca serriola L. Ahart, Josephine Guardino, John Dittes 2009-8-27 16307 Tehama E side of Forest Service Road 29N25A, Childs Meadow, about 2600 feet S of the intersection of Highway 36 and Forest Service Road 29N25A, 2.3 air miles NE of the town of Mill Creek, 9.1 air miles S of Lassen Peak. 1494 Comment
  RSA796205  Lactuca serriola Duncan S. Bell, Joella Adkins 2012-7-31 3960 San Bernardino San Bernardino National Forest; northeast of Big Bear Lake, along a small forest service road in the community of Minnelusa, approximately 1 air mile east of the Big Bear Discovery Center. 2077 Comment
  RSA796304  Lactuca serriola Duncan S. Bell, Joella Adkins 2012-7-31 3977 San Bernardino San Bernardino National Forest; north side of Big Bear Lake, just southwest of the junction of Highway 38 and Highway 18, about 1 air mile southeast of the Big Bear Discovery Center. 2061 Comment
  RSA796592  Lactuca serriola Duncan S. Bell, Joella Adkins 2012-7-16 3800 San Bernardino San Bernardino National Forest: north west side of Big Bear Lake in the Grout Creek area, just northwest of Gays Peak Group camp. 2208 Comment
  RSA796607  Lactuca serriola Duncan S. Bell, Joella Adkins, Ezekiel Kwemba 2012-8-10 4048 San Bernardino San Bernardino National Forest; north side of Sugarloaf Mountain; collecting on open ski-slopes of Rathbone Canyon approximately 0.9 air mile north of Sugarlump. 2268 Comment
  RSA798699  Lactuca serriola Duncan S. Bell, Joella Adkins 2012-7-30 3941 San Bernardino San Bernardino National Forest; north side of Big Bear Lake, south of Highway 38 and northwest of Juniper Point, approximately 0.2 air mile southeast of the Big Bear Discovery Center. 2065 Comment
  RSA798718  Lactuca serriola Duncan S. Bell, Joella Adkins 2012-7-16 3811 San Bernardino San Bernardino National Forest: the east side of Fawnskin Valley at the southwest base of Delamar Mountain, at small drainage crossing 0.1 air mile east of junction of forest service road 3N14 and forest service road 3N12. 2207 Comment
  RSA798734  Lactuca serriola Duncan S. Bell, Joella Adkins 2012-7-25 3889 San Bernardino San Bernardino National Forest: along forest service road 2N06Y above the community of Fawnskin, just behind the water tower on the southeastern slopes of Delamar Mountain. 2182 Comment
  RSA798989  Lactuca serriola Duncan S. Bell, Joella Adkins, Lizzy Eichorn, Terri Granillo 2012-7-24 3872 San Bernardino San Bernardino National Forest: north section of Fawnskin Valley below Little Bear Peak, about 0.3 air mile north of the junction of forest service road 3N14 and forest service 3N12. 2219 Comment
  RSA799331  Lactuca serriola Duncan S. Bell, Joella Adkins 2012-7-25 3900 San Bernardino San Bernardino National Forest: north side of Big Bear Lake, in the vicinity of Meadows Edge, approximately 0.25 air mile southwest of the Big Bear Discovery Center. 2075 Comment
  RSA799524  Lactuca serriola Duncan S. Bell, Joella Adkins 2012-7-26 3924 San Bernardino San Bernardino National Forest: north side of Big Bear Lake, above the community of Fawnskin, about 1.8 air miles northwest of the Big Bear Discovery Center. 2180 Comment
  RSA894  Lactuca serriola J. T. Howell 1927-7-27 496 Orange Near ranch, Rancho Santa Ana 152 Comment
  SBBG101447  Lactuca serriola S. A. Junak 1991-8-2 SC 2816 Santa Barbara just S of top of steep portion of rd to China Harbor (Chinese Harbor) beach 207 Comment
  SBBG101558  Lactuca serriola S. A. Junak with R. Young 1991-10-9 SC 2929 Santa Barbara saddle at extreme E end of Navy Rd 365 Comment
  SBBG102599  Lactuca serriola C. F. Smith 1943-10-2 165 Santa Barbara N end of Cheltenham Rd above Tunnel Rd, Mission Cyn Comment
  SBBG102796  Lactuca serriola C. F. Smith 1943-9-2 26 Santa Barbara N end of Cheltenham Rd above Tunnel Rd, Mission Cyn Comment
  SBBG104126  Lactuca serriola D. Swinney 1991-10-19 1678 San Bernardino Lost Lake, Lone Pine Cyn Comment
  SBBG105361  Lactuca serriola H. L. Ferguson 1981-10-6 255 Los Angeles just W of Lemon Tank, E of main rd by Pole 164 342 Comment
  SBBG106263  Lactuca serriola S. A. Junak 1989-9-6 SN 421 Ventura NW end of mesa, along Tufts Rd near water well Bldgs (Bldgs 132-134) 167 Comment
  SBBG106291  Lactuca serriola S. A. Junak 1990-11-8 SCl 134 Los Angeles Wilson Cove, at Living Compound 45 Comment
  SBBG106324  Lactuca serriola S. A. Junak 1989-7-13 SN 416 Ventura NE portion of mesa, just S of W end of airfield runways 152 Comment
  SBBG108435  Lactuca serriola N. Meng 1966-7-29 Kern between parking area and telephone building, China Lake Comment
  SBBG110772  Lactuca serriola E. Painter, E. Neese 1994-7-19 HL 799 Monterey near Del Venturi Rd ford of San Antonio River, ca. 3.7 km WSW of Old Man Cyn, ca. 4 km NW of Oro Fino Cyn; Ft Hunter Liggett 300 Comment
  SBBG112008  Lactuca serriola S. A. Junak 1998-8-18 SR 757 Santa Barbara E side of Wreck Cyn, ca. 1 mi inland from beach 76 Comment
  SBBG113911  Lactuca serriola E. Painter, E. Neese 1996-8-30 HL 2976 Monterey former site of Jolon Village Store, ca. 0.1 km SW of jct of Mission Crk and Jolon Rds, ca. 0.4 km W of Jolon Crk, ca. 2.5 km N of San Antonio River; Ft Hunter Liggett 295 Comment
  SBBG117080  Lactuca serriola S. Chaney 1998-9-1 152 Santa Barbara Tranquillon Cyn Comment
  SBBG117902  Lactuca serriola E. Painter, M. Wetherwax 2002-9-4 CR 368 San Luis Obispo Sulphur Spring Rd; Camp Roberts 263 Comment
  SBBG118194  Lactuca serriola E. Painter, M. Wetherwax 2000-8-19 SLO 161 San Luis Obispo E side of Range A, N of Range Rd, W of Chorro Reservoir, W side of serpentine outcrop; Camp San Luis Obispo 240 Comment
  SBBG118937  Lactuca serriola S. D. White with P. De Vries 2004-6-14 10493 a Los Angeles Lyon Cyn, W of Interstate 5, ca. 4 mi N of the I-5 jct with Hwy 14, ca. 6 mi S of Castaic Jct 396 Comment
  SBBG124891  Lactuca serriola R. Burgess, P. Munro 2000-8-26 4173 Santa Barbara Potrero Seco Rd, spring just NE of Three Sisters 1524 Comment
  SBBG129146  Lactuca serriola S. A. Junak, D. Rosen 2001-7-16 MA 426 Ventura ridgetop, just W of western knife ridge, near top of N bluffs 79 Comment
  SBBG130111  Lactuca serriola S. A. Junak 1998-9-25 SC 4280 Santa Barbara Hazard's Cyn, just upstream from fork in cyn, with side cyn entering from W side, along big trail 121 Comment
  SBBG130280  Lactuca serriola S. A. Junak 2002-7-10 SC 4444 Santa Barbara Central Valley, just N of Lyndal's house, just W of UC field station 70 Comment
  SBBG130450  Lactuca serriola S. A. Junak 2002-5-28 SC 4420 Santa Barbara Coches Prietos Anchorage, at mouth of crk 3 Comment
  SBBG130474  Lactuca serriola S. A. Junak, D. Wilken, K. McEachern 1995-10-4 SC 4194 Santa Barbara N ridge, just W of 3rd saddle, W of Picacho Diablo, above Trident Cyn, near ridgetop 594 Comment
  SBBG13783  Lactuca serriola M. A. Piehl 1962-10-3 62491 Los Angeles main rd near N part of Swain's (Swain) Cyn 381 Comment
  SBBG14089  Lactuca serriola M. A. Piehl 1962-5-15 62288 Santa Barbara Stanton Ranch headquarters 61 Comment
  SBBG30730  Lactuca serriola R. N. Philbrick 1964-6-19 64 202 a Santa Barbara Stanton Ranch garden Comment
  SBBG30860  Lactuca serriola T. L. Secrest 1950-8-15 Alpine near Markleeville 1737 Comment
  SBBG31093  Lactuca serriola R. F. Thorne 1966-4-29 36276 Los Angeles near temporary pool above ranch in Middle Ranch Cyn 228 Comment
  SBBG33777  Lactuca serriola M. R. Benedict 1969-8-7 Ventura road to artificial pond, S of airstrip Comment
  SBBG36094  Lactuca serriola H. M. Pollard 1968-8-21 Ventura Southern Pacific Railroad and Ventura Ave, near Wadstrom; Ventura oil fields Comment
  SBBG39054  Lactuca serriola H. M. Pollard 1962-10-4 Ventura Southern Pacific Railroad between Tico and Hermosa Rds Comment
  SBBG43410  Lactuca serriola M. R. Benedict 1971-11-16 Ventura SE end of air strip Comment
  SBBG52600  Lactuca serriola R. Zembal 1977-6-18 Ventura between 9th Street and Oxnard drainage ditch no 2; E of F Ave Comment
  SBBG53646  Lactuca serriola S. A. Junak, R. N. Philbrick 1980-5-8 WA 151 Ventura upper W fork of Box Cyn 164 Comment
  SBBG54795  Lactuca serriola S. A. Junak with M. C. Hochberg 1981-9-9 SC 446 Santa Barbara corrals N of Christi Ranch, rd to Fraser Pt 67 Comment
  SBBG6626  Lactuca serriola R. Hoffmann 1932-5-10 Santa Barbara near the ranch Comment
  SBBG67935  Lactuca serriola H. M. Pollard 1946-7-12 Ventura Ventura County [no specific locality] Comment
  SBBG81314  Lactuca serriola S. A. Junak, M. C. Hochberg 1978-8-30 Santa Barbara ca. 0.5 mi E of Crook Pt Comment
  SBBG8501  Lactuca serriola H. and M. Dearing 1940-11-3 4504 Ventura near Foster Park Comment
  SBBG8502  Lactuca serriola H. M. Pollard 1958-8-3 Santa Barbara Fairview Rd near Airport; Goleta Comment
  SBBG8503  Lactuca serriola C. F. Smith 1944-8-13 1088 Santa Barbara jct of Mission Cyn and Tunnel Rds Comment
  SBBG87062  Lactuca serriola C. F. Smith 1958-9-3 5864 Santa Barbara E of Carpinteria Crk, near Carpinteria Comment
  SBBG87073  Lactuca serriola C. F. Smith 1958-7-15 5808 San Luis Obispo dirt rd, ca. 2 mi E of Old Cuyama on Hwy 66 Comment
  SBBG88813  Lactuca serriola C. F. Smith 1943-9-2 26 Santa Barbara Montrose Place above Tunnel Rd, Mission Cyn Comment
  SBBG90803  Lactuca serriola S. A. Junak 1985-8-24 SC 1106 Santa Barbara Canada del Puerto, ca. 0.25 mi downstream from Stanton Ranch 60 Comment
  SBBG91758  Lactuca serriola S. A. Junak with J. Vanderwier 1983-5-11 SN 58 Ventura W side of Celery Cyn near base of rd from Living Compound 30 Comment
  SBBG91857  Lactuca serriola S. A. Junak 1984-6-1 SN 117 Ventura near N edge of mesa, along E side of Barracks 2, Living Compound 121 Comment
  SBBG91932  Lactuca serriola S. A. Junak 1984-5-31 SN 114 Ventura foot of rd from Living Compound, just E of NAVFAC facility 30 Comment
  SBBG91933  Lactuca serriola S. A. Junak 1985-10-17 SN 61 Ventura mesa, at Living Compound, across rd from Public Works Bldg 121 Comment
  SBBG92135  Lactuca serriola S. A. Junak 1984-3-22 SN 102 Ventura mesa, between Monroe Dr and W end of airfield runways 146 Comment
  SBBG94441  Lactuca serriola S. A. Junak, D. Young, T. Ayers 1989-8-24 4145 San Luis Obispo USFS Rd 29S11.3, ca. 0.1 mi W of W boundary, Cuesta Ridge Botanic Area, ca. 5.3 mi W of US Hwy 101 777 Comment
  SBBG96197  Lactuca serriola C. F. Smith 1965-7-14 8860 Santa Barbara 100 Sierra Vista Rd, off Barker Pass Rd; Santa Barbara Comment
  SCFS636  Lactuca serriola B. Trowbridge 1970-9-5 1908 Nevada Sagehen Basin, Nr fish tank 1951 Comment
  SD12078  Lactuca serriola Frank F. Gander 1935-7-27 238 19 San Diego Lake Murray Comment
  SD124743  Lactuca serriola A. C. Sanders 1986-9-12 6939 Kern San Joaquin Valley, Twisselman Road at Highway I-5, 4.9 miles south of King's County line. Comment
  SD136908  Lactuca serriola Steve Boyd, Tim Ross, Dave Bramlet 1992-9-9 7678 Riverside Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area; upper San Mateo Canyon,from the junction of Tenaja Road and Los Alamos Creek. 395 Comment
  SD137869  Lactuca serriola Darin L. Banks, Steve Boyd 1995-10-17 794 Riverside Northwest Palomar Mountains; Agua Tibia Mountains; along lower Arroyo Seco, south of the Dripping Springs Campground. 530 Comment
  SD138120  Lactuca serriola John W. Brown 1995-9-4 MM 321 San Diego Mexican Canyon, south end of McGinty Mountain, Jamul Drive, Jamul. Comment
  SD138183  Lactuca serriola John W. Brown 1995-10-8 MM 346 San Diego Sloan Canyon Road, Sweetwater River, northeast edge of McGinty Mountain. Comment
  SD156443  Lactuca serriola Jon P. Rebman, Jeannie Gregory 2003-10-7 9588 San Diego Laguna Mountains: Lucky 5 Ranch; southern portion of new acquisition by California State Parks: east side of Sunrise Hwy (S-1) between Cuyamaca Lake and Mount Laguna 1675 Comment
  SD158203  Lactuca serriola Robin Halford 2004-5-12 30 San Diego 536 Indian Head Ranch Road, Borrego Springs; 2 miles north of S22 235 Comment
  SD158204  Lactuca serriola Robin Halford 2004-5-12 35 San Diego 536 Indian Head Ranch Road, Borrego Springs; 2 miles north of S22 235 Comment
  SD158787  Lactuca serriola Jerilyn Hirshberg 2004-8-16 837 San Diego Santa Isabel, west side of Washington Street, 100 meters south of intersection with Hwy 78/79 920 Comment
  SD159748  Lactuca serriola Scott Snover 2004-7-6 74 San Diego North of Escondido, Circle R Dr. 2.2 mi east of Old Hwy 395 267 Comment
  SD160380  Lactuca serriola Gay Dorius 2004-9-4 95 San Diego Paved and fenced alley, 1/2 blk. S. of Clairemont Mesa Blvd. between Genesee Ave. & Frink Ave. 113 Comment
  SD160381  Lactuca serriola Margaret Fillius 2004-8-28 158 San Diego Rose Canyon, alongside the road through the south of the canyon, West of Galloway trail 57 Comment
  SD160697  Lactuca serriola Jon P. Rebman 2002-8-7 8245 San Diego Kelley/Rebman Ranch at 565 Anderson Truck Trail on northwest side of Viejas Mountain: approx. 2 miles north of Victoria Road in Alpine 800 Comment
  SD163226  Lactuca serriola Robert Lauri 2003-8-5 560 San Diego South of Palomar State Park. North side of Hwy S6, near mile marker 45, ca. 4.1 miles north of junction with Hwy 76. 1289 Comment
  SD164293  Lactuca serriola Jon P. Rebman, Jeannie Gregory 2003-7-25 9426 San Diego Rancho Jamul Ecological Reserve: west of Hwy. 94, south of Jamul & north of Otay Lakes Road; dried pond east of Jamul Creek 239 Comment
  SD164294  Lactuca serriola Jon P. Rebman 2003-8-4 9493 San Diego Kelley/Rebman Ranch at 565 Anderson Truck Trail/West Boundary Road on the northwest side of Viejas Mountain: approx. 2 miles north of Victoria Road in Alpine 762 Comment
  SD166891  Lactuca serriola Jon P. Rebman, J. Gregory and J. Rocks 2004-6-1 10557 San Diego Otay Mountain Ecological Reserve (California Dept. of Fish & Game): Southeast of Otay Lake; south of Otay Lakes Road, just north of the old olive grove 374 Comment
  SD167211  Lactuca serriola Andrew C. Sanders 2005-10-5 31719 San Diego Blue Sky Ecological Reserve (DFG), east of Rancho Bernardo and north of Poway, along road in lower canyon below turnoff to Lake Poway 182 Comment
  SD167212  Lactuca serriola Andrew C. Sanders 2005-10-14 31870 San Diego Palomar Mtn., Plaisted Creek Ecological Reserve, NE of Rincon & Pauma Valley, between Plaisted Cr. and Hwy 76, SE lobe of reserve near residences abandoned in 1996 701 Comment
  SD167213  Lactuca serriola Andrew C. Sanders 2005-10-14 31881 San Diego Boden Canyon Ecological Reserve (DFG), tributary of Santa Ysabel Creek at E end of San Pasqual Valley; along the road between Santa Ysabel Creek and the pond (reservoir) in middle DFG parcel, W & SW foot of Orosco Ridge 244 Comment
  SD167794  Lactuca serriola Jeannie Gregory, John Gregory 2005-7-31 1886 San Diego Double S Ranch(on road to Lower Lake), N of Angel Mountain Road, 11 mi NW of Santa Ysabel, 2 mi W of Lake Henshaw, 4 mi E of Pine Mountain summit 1021 Comment
  SD169385  Lactuca serriola Jeannie Gregory, Joe Barth 2005-6-11 1489 San Diego Alpine, Wright's Field Preserve, 1 mile S of Interstate 8 on Tavern Road; E of Joan MacQueen Middle School 573 Comment
  SD169386  Lactuca serriola Joe Barth 2005-9-29 602 San Diego Chula Vista Wildlife Reserve in southeast San Diego Bay. approx. 1.0 mile west of Interstate 5 at L street. (CVWR is accessed via electrical power plant and is a human made site constructed as mitigation for the adjacent J St. marina construction). 0 Comment
  SD170990  Lactuca serriola Larry Hendrickson 2004-9-1 270 San Diego Cuyamaca Rancho State Park, Green Valley. East of State Highway 79 and the access road to the historic Dyer house, about 600 feet north of the confluence of Sweetwater River and Cold Stream on the west side of the river. 1232 Comment
  SD170991  Lactuca serriola Joe Barth 2005-4-1 429 San Diego National City business district: city block between A and B Avenues, and between E 7th and E 8th Streets; mainly between 105 E 8th St. (McDini's Baja Pub) and 139 E 8th St. (Simon's Pawn Shop). 11 Comment
  SD171590  Lactuca serriola Jon P. Rebman, J. Gregory, M. Mulligan, & J. Rocks 2005-5-10 11908 San Diego Walker Canyon Ecological Reserve (Ca. Dept. of Fish & Game): between Boulevard and Jacumba on the north side of Interstate 8, central portion of the reserve. 890 Comment
  SD172795  Lactuca serriola MaryAnn Brooks-Gonyer, Beverly Pecunia 2005-6-10 346 San Diego About 7.5 miles north of San Marcos, just south of Gopher Canyon Road, about 2 miles west of intersection with I-15 Comment
  SD172796  Lactuca serriola MaryAnn Brooks-Gonyer, Beverly Pecunia 2005-6-10 334 San Diego Just north of Gopher Canyon Road, approx. 9 miles north of city of Escondido, about 1/2 mile west of intersection with I-15. Comment
  SD172797  Lactuca serriola MaryAnn Brooks-Gonyer 2005-6-17 356 San Diego About 9 miles north of city of Escondido, Nature Trail located parallel and east of Circle R Drive, about 1 mile east of Old Highway 395 (and I-15). Nature Trail begins at north end of Courtyard View Drive. Comment
  SD172798  Lactuca serriola Larry Hendrickson 2005-6-26 1080 San Diego Cuyamaca Rancho State Park. Los Caballos equestrian campground. Approx. 0.8 mile north of Stonewall Peak and 0.3 mile east of intersection of State Hwy 79 and Stonewall Mine Rd. Eastside of Stonewall Mine Rd. beside access road to campground. 1440 Comment
  SD174426  Lactuca serriola Krystyna Tatarkiewicz 2005-8-6 26 San Diego Los Penasquitos Canyon Preserve, I(c) mile ESE of intersection I-15 and Poway Rd, S of Los Penasquitos Canyon Creek. 106 Comment
  SD174427  Lactuca serriola Krystyna Tatarkiewicz 2005-8-6 36 San Diego Los Penasquitos Canyon Preserve, 1 mile SE of intersection I-15 and Poway Rd, S side of Los Penasquitos Canyon Creek. 116 Comment
  SD174428  Lactuca serriola Margaret R. Mulligan, Joe Barth 2005-7-26 1248 San Diego McGinty Mountain Ecological Reserve (California Fish & Game). SE of city El Cajon. SE of intersection of Willow Glen Dr and Hillsdale Rd, near old gravel pits in the Sweetwater River Floodplain. 116 Comment
  SD174429  Lactuca serriola Beverly Pecunia, Mary Ann Brooks-Gonyer 2005-11-6 42 San Diego NE Escondidio, NE section of Lake Wohlford, along trail that parallels the North shore, Ao to I(c) mile E of East Parking Lot. 458 Comment
  SD175354  Lactuca serriola Jon P. Rebman, J. Gregory, M. Mulligan, & J. Barth 2005-8-13 12221 San Diego San Vicente Reservoir: North of Lakeside, east of Hwy. 67, northeast of intersection between Moreno Ave. and Vigilante Road; west side of reservoir in the first cove north of the boat landing 195 Comment
  SD176407  Lactuca serriola Gay Dorius 2005-6-30 194 San Diego City of San Diego, Rose Canyon: E. extension to W. end of Governor Dr.; center of 'Interpretive Garden'; N. side of trail. 103 Comment
  SD176408  Lactuca serriola Joe Barth 2005-10-13 649 San Diego Jacumba Valley, on the shoulders of Old Highway 80 between the town of Jacumba and Jacumba Airstrip, approx 1.5 miles SSE of Round Mtn, and 0.3 mile N of the international border. 854 Comment
  SD176409  Lactuca serriola Margaret R. Mulligan, Joe Barth 2005-8-9 1328 San Diego Walker Canyon Ecological Reserve (California Fish & Game): between the towns of Boulevard and Jacumba on the north side of Interstate 8. Western half of riparian zone. 943 Comment
  SD177909  Lactuca serriola Jon P. Rebman, J. Gregory and M. Mulligan 2006-10-5 12911 San Diego Lake Henshaw (Vista Irrigation District property): N side of Lake along Henshaw Truck Trail, approx. 2.2 miles NE of the junction of Hwy. 76 and E Grade Road 819 Comment
  SD179817  Lactuca serriola Jon P. Rebman, P. Famolaro & Parabotany Team 2007-8-8 13743 San Diego Loveland Reservoir: S of Alpine and Japatul Valley Road; just below the dam (south) at the extreme southeastern end of the reservoir 390 Comment
  SD179818  Lactuca serriola Jon P. Rebman, J. Gregory and L. Aerne-Hains 2007-7-9 13693 San Diego Lake Henshaw: SE of East Grade Road and S of Henshaw Truck Trail, approx. 0.5 air miles NE of the dam; along the north shore of the Lake 815 Comment
  SD180442  Lactuca serriola Larry Hendrickson 2005-9-21 1153 San Diego Cuyamaca Rancho State Park, along access rd to Los Caballos equestrian campground, 0.8 air mi north of Stonewall Peak, 0.3 mi east of intersection of State Hwy 79 and paved access rd to Stonewall Mine. 1433 Comment
  SD181997  Lactuca serriola Jeannie Gregory, J. Schlachter, L. Aerne, M. Mulligan 2006-6-30 2043 San Diego Town of Potrero, Hauser Mountain, Harris Ranch Rd, near old house site; ca. 3 mi N of Canyon City at Highway 94, ca. 4 mi W of Cameron Corners (inters of Hwy 94 & Buckman Springs Rd). 683 Comment
  SD181998  Lactuca serriola Darlene Ward 2005-8-31 97 San Diego City of San Diego, Ruffin Canyon Open Space, east of Taft Middle School in Serra Mesa, in the Native Habitat Garden near the south end of Ruffin Road. 102 Comment
  SD182947  Lactuca serriola Jon P. Rebman, J. Gregory, K. Rich, & P. Famolaro 2007-9-12 13847 San Diego Sweetwater Reservoir: east of National City and south of La Presa; canyon just below the dam on the west side of the reservoir 45 Comment
  SD182948  Lactuca serriola Jon P. Rebman, J. Gregory, K. Rich, & P. Famolaro 2007-9-12 13980 San Diego Sweetwater Reservoir: east of National City and south of La Presa; vicinity of riparian zone and upland areas northeast and upstream from the east end of the reservoir 78 Comment
  SD183822  Lactuca serriola Melvin M. Sweet 2006-7-21 375 San Diego City of San Diego; along utility road in canyon running from Eastgate Mall (3/4 mile NW of the intersection of Eastgate and Genesee Ave) to the end of Roselle St. (about1/2 mile E from the intersection of I-5 and I-805). 70 Comment
  SD183823  Lactuca serriola Ian Cain, Terri Foster, Emily Clayton 2006-8-14 304 San Diego City of Lemon Grove. Chollas Lake Community Park. North Chollas Canyon. Just west of the Chollas Canyon Parking Lot. 102 Comment
  SD184655  Lactuca serriola Judy Carlstrom 2006-7-9 344 San Diego Moosa Canyon, south of Old Castle Road, 1 mile East of I-15, just S of Castle Creek Country Club. 227 Comment
  SD186656  Lactuca serriola Jon P. Rebman, Margie Mulligan 2008-5-28 15303 San Diego Hellhole Canyon Open Space Preserve: east of Valley Center and northeast of Lake Wohlford; southwest portion of preserve, along Hellhole Creek west of the canal pipe in the waterfall area 415 Comment
  SD186657  Lactuca serriola Jon P. Rebman, M. Mulligan & W. Schmidtmann 2008-6-19 15616 San Diego Camp Pendleton Marine Corps Base: along North River Road, east of Stuart Mesa Road; along the northern edge of the Santa Margarita River in the southwestern portion of the base 6 Comment
  SD187253  Lactuca serriola Jon P. Rebman, M. Mulligan & J. Hirshberg 2008-5-30 15345 San Diego Hauser Wilderness: Cleveland National Forest; SW of Morena Reservoir and E of Barrett Lake, along the trail that follows Hauser Creek, west of the Marine Memorial 500 Comment
  SD18740  Lactuca serriola Frank F. Gander 1937-9-16 4457 San Diego Pine Valley Comment
  SD187718  Lactuca serriola Theresa Acerro, Jack Snider 2005-8-10 5 San Diego Chula Vista, Del Rey Canyon, NE of junction of E J St and Paseo Del Rey 68 Comment
  SD187719  Lactuca serriola Hal Goforth 2006-6-30 45 San Diego Rancho San Diego, Hwy 94 S. at the old Steele Canyon Bridge in the dry Sweetwater river bed and banks. 95 Comment
  SD187720  Lactuca serriola Hal Goforth 2006-7-1 36 San Diego El Cajon. Canyon and hillsides at end of Boyington Pl, E of Grossmont college, NE of Navajo Rd. 199 Comment
  SD187721  Lactuca serriola Larry Hendrickson 1997-9-15 956 San Diego San Felipe Valley Wildlife Area, California Department of Fish & Game. 11.5 miles south of intersection of State Hwy 79 and County Hwy S-2. West of S-2 NW corner of ruderal area near eastern flank of Volcan Mountain. 783 Comment
  SD187722  Lactuca serriola Carolyn Martus 2006-7-13 321 San Diego Bonsall, northern Bonsall Preserve land at the southern end of Ostrich Farm Creek where it meets the San Luis Rey River. 63 Comment
  SD188765  Lactuca serriola Jon P. Rebman, M. Mulligan & W. Schmidtmann 2008-6-19 15682 San Diego Camp Pendleton Marine Corps Base: near North River Road, east of Stuart Mesa Road in the southwestern portion of the base; in the Santa Margarita River bed along the water pipe that crosses the river 10 Comment
  SD189539  Lactuca serriola Kathleen A Mauro, Andrew Mauro 2006-8-18 11 San Diego Ewing Preserve in Ranch Santa Fe; Approx. 0.8 mi on Linea Del Cielo (S-8) from its intersection with La Granada (S-9), just N of La Sencilla. East side of road. 75 Comment
  SD190448  Lactuca serriola Jon P. Rebman, Michael Wall 2008-9-11 15892 San Diego McCain Valley: north of Boulevard; along McCain Valley Road just south of Lost Valley 1160 Comment
  SD190449 Image available Lactuca serriola Jon P. Rebman, M. Mulligan & D. Bieber 2008-6-25 15772 San Diego Camp Pendleton Marine Corps Base: south of Stagecoach Road and just north of the airstrip along Vandegrift Blvd.; in the Santa Margarita River bed 24 Comment
  SD190604  Lactuca serriola Larry Hendrickson, Jon Rebman, et al. 2005-4-16 3182 Imperial Picacho State Recreation Area, south side of Colorado River, and north of main access road. 63 Comment
  SD192348  Lactuca serriola Jan E. Maxted, Don Maxted 2006-10-6 386 San Diego Bratton Valley, land surrounding 18569 Deerhorn Valley Rd, 3 mi N of Dulzura, 2.5 mi SE of Lyons Peak summit, I(c) mi. SE of inters of Honey Springs Rd & Deerhorn Valley Rd. 648 Comment
  SD194902  Lactuca serriola Ian Cain 2007-6-30 540 San Diego City of Vista. Anstine-Audubon Bird Sanctuary. 2437 Hutchison Street, 160 meters north of intersection of Hutchison and Osborne Street 96 Comment
  SD196296  Lactuca serriola Victoria Marshall 2007-10-12 658 San Diego Ramona; Simon Park Open Space Preserve, ca 2 miles SE of intersection of Old Julian Highway and Vista Ramona Rd. 481 Comment
  SD199018  Lactuca serriola Jon P. Rebman, M. Mulligan, M. Dinkins, B. Lardiere 2009-7-16 18198 San Diego Camp Pendleton Marine Corps Base: Delta Training Area in the northwestern portion of base; east of Talega Canyon Road along San Mateo Creek and west of Devil Canyon 130 Comment
  SD202505  Lactuca serriola Jon P. Rebman, L. Aerne Hains, L. Young, R. Kurner 2009-9-15 18315 San Diego Palomar Mountains: Cleveland National Forest; along a bulldozer path west of Cutca Valley Truck Trail in the northern foothills of the Palomar Mts., north of Cutca Valley 1095 Comment
  SD202507  Lactuca serriola Jon P. Rebman, L. Aerne Hains, L. Young, R. Kurner 2009-9-15 18337 San Diego Palomar Mountains: Cleveland National Forest; along a bulldozer path west of Cutca Valley Truck Trail in the northern foothills of the Palomar Mts., north of Cutca Valley 1189 Comment
  SD204120  Lactuca serriola Barbara Booth, Justin M. Wood and Dustin Ray 2009-7-14 196 San Diego Oak Grove Valley, near intersection of Highway 79 and Oak Grove Truck Trail. 851 Comment
  SD205348  Lactuca serriola Jerilyn Hirshberg 2008-7-11 1856 San Diego Cleveland National Forest, W side of Cuyamaca Mtns, 0.5 mile west of intersection of Boulder Creek Road and Cedar Creek Road, west of Eagle Peak 879 Comment
  SD205349  Lactuca serriola Jerilyn Hirshberg 2008-7-26 1904 San Diego Cleveland National Forest, NW of Cuyamaca Mtns, about 6 miles south of intersection of Hwy 78 and 79 (Santa Ysabel), 0.25 mile west of pond at Deadman Flat, .5 mile northwest of intersection of Eagle Peak Road and road to Deadman Flat 940 Comment
  SD207634  Lactuca serriola Jerilyn Hirshberg 2008-9-27 1986 San Diego Cleveland National Forest, NW of Cuyamaca Mtns, about 5 miles south of intersection of Hwy 78 and 79 (Santa Ysabel), 1 mi NW of intersection of Eagle Peak Road and road to Deadman Flat 1000 Comment
  SD208695  Lactuca serriola Larry Hendrickson 2008-8-24 3236 B San Diego Cuyamaca Mountains. Cuyamaca Rancho State Park. East of intersection of State hwy. 79 and West Mesa Fire Road. East side of hwy. 79 in clearing beside West Mesa Parking. 2.0 air miles ENE of Japacha Peak, and 0.1 mile S of Cold Spring. 1299 Comment
  SD209608  Lactuca serriola Jon P. Rebman, J. Schlachter, L. Aerne Hains, & volunteers 2010-8-14 20218 San Diego Along dirt road east of Cooper Cienega Truck Trail: just S of the Riverside/San Diego County border and NE of Chihuahua Valley Road; on Bureau of Land Management lands along the grade and at the bottom of a canyon 1315 Comment
  SD209609  Lactuca serriola Jon P. Rebman, J. Schlachter, L. Aerne Hains, & volunteers 2010-8-14 20070 San Diego Along Cooper Cienega Truck Trail: S of the Riverside/San Diego County border and N of Chihuahua Valley Road; on Bureau of Land Management lands in the vicinity of a pond and canyon below 1200 Comment
  SD210039  Lactuca serriola Jon P. Rebman, J. Schlachter, L. Aerne Hains, & volunteers 2010-6-30 19788 San Diego Southwest of Campo: South of Highway 94; on Bureau of Land Management lands along wet canyon/streambed near dirt road and approximately 0.6 miles north of the USA/Mexico border 765 Comment
  SD210040  Lactuca serriola Jon P. Rebman, W. Schmidtmann and volunteers 2010-11-16 20381 San Diego Camp Pendleton: India Training Area; south of De Luz Camp and west of the Santa Margarita River 110 Comment
  SD210041  Lactuca serriola Jon P. Rebman, J. Schlachter, L. Aerne Hains, & volunteers 2010-8-15 20295 San Diego Southwest of Combs Peak: canyon off of Chihuahua/Lost Valley Road just east of Sky Oaks Field Station; on Bureau of Land Management lands 1399 Comment
  SD210042  Lactuca serriola Jon P. Rebman 2010-10-5 20345 San Diego San Dieguito Lagoon area: southeast of Del Mar Fairgrounds; west of El Camino Real, east of Interstate 5, and south of Via de la Valle; Least Tern Nesting Site NS14 4 Comment
  SD210043  Lactuca serriola Jon P. Rebman, W. Schmidtmann, J. Rocks & volunteers 2010-12-2 20540 San Diego Camp Pendleton: Golf Training Area; east of De Luz Road and north of Camp De Luz; along De Luz Creek 70 Comment
  SD210754  Lactuca serriola Larry Hendrickson, Melvin Sweet, Bonnie Bruce 2010-5-18 4821 San Diego Anza-Borrego Desert State Park. Lower Borrego Valley, NE of Vallecito Mountains, 2.8 miles SE of intersection of State hwy. 78 and Borrego Springs Road, and 0.9 mile S of 78. 157 Comment
  SD210755  Lactuca serriola Larry Hendrickson 2010-8-1 4983 San Diego Earthquake Valley (Shelter Valley), County Road S-2 (Great Southern Overland Stage Route), 3.8 miles SE of intersection of S-2 and State hwy. 78, at intersection of S-2 and unpaved road (Jack Napierski Trail). 730 Comment
  SD210756  Lactuca serriola Larry Hendrickson 2010-9-16 5153 San Diego Cuyamaca Mountains. Anza-Borrego Desert State Park, east of Lake Cuyamaca, 1.6 miles SE of intersection of State hwy. 79 and County Road S-1 (Sunrise Highway), and 0.1 mile NE of S-1 and Pedro Fages monument parking. 1441 Comment
  SD210757  Lactuca serriola Carolyn Martus, Margaret Mulligan 2008-7-9 826 San Diego Fallbrook, 2I(c) mi NE of, 3I(c) mi W of Rainbow, on south side of the Santa Margarita River at the Willow Glen and N. Stagecoach trailhead. 149 Comment
  SD210758  Lactuca serriola Margaret R. Mulligan, J. Hirshberg 2008-10-22 2640 San Diego Hauser Wilderness, Cleveland National Forest: N edge of Wilderness, in first large drainage to the NW of Stokes Valley along Skye Valley Road. Drainage begins ca. 1 mi SE on Skye Valley Road from gate to Skye Valley. 869 Comment
  SD214801  Lactuca serriola Reginald Durant, L. Whalen, E. Steiner, J. Steiner 2008-7-20 81 San Diego Cleveland National Forest, 1.5 miles SW of intersection Pala Road (Highway 76) and Mesa Grande Truck Trail, 1.5 mi NE of Pine Mountain, 4 miles W of Lake Henshaw dam 1075 Comment
  SD215872  Lactuca serriola Jerilyn Hirshberg 2009-8-8 2188 San Diego Cleveland National Forest, NW of Cuyamaca Mtns, 0.5 mile south of gate to McGee Flat on Eagle Peak Road, about 1.6 miles SW of intersection of Eagle Peak Road with Boulder Creek Road 1160 Comment
  SD216800  Lactuca serriola Jon P. Rebman, John Martin and SDNHM volunteers 2011-4-27 21248 San Diego San Diego National Wildlife Refuge: southeast of Sweetwater Reservoir; west side of Mother Miguel Mountain; in a small canyon and on the grassland slopes around it 164 Comment
  SD21865  Lactuca serriola Frank F. Gander 1938-7-7 6069 San Diego Dehesa. Comment
  SD21873  Lactuca serriola Frank F. Gander 1938-7-7 6077 San Diego Spring Valley Comment
  SD21874  Lactuca serriola Frank F. Gander 1938-7-11 6078 San Diego Gold Gulch, Balboa Park. Comment
  SD21884  Lactuca serriola Frank F. Gander 1938-7-13 6088 San Diego Murphy Canyon near Mission Valley. Comment
  SD219343  Lactuca serriola Jon P. Rebman, John Martin & volunteers 2011-5-31 21976 San Diego San Diego National Wildlife Refuge: East of Bonita and just south of the Sweetwater Reservoir; Shinohara Vernal Pool area 89 Comment
  SD219769  Lactuca serriola Larry Hendrickson 2009-8-1 4168 San Diego Banner Grade (State highway 78) west of Volcan Mountain, SW side of Banner Canyon. 1.5 air miles NE of Julian, and 0.1 mile NE of intersection of 78 and Wynola Road (Juch Road on some maps). 1189 Comment
  SD219770  Lactuca serriola Larry Hendrickson 2009-9-7 4248 San Diego San Felipe Valley Wildlife Area, California Department of Fish & Game property. 3.0 air miles W of intersection of State hwy. 78 and the SW intersection with County Road S-2, and 1.2 miles NNW of access gate at hwy. 78. 748 Comment
  SD220209  Lactuca serriola Nancy Nenow 2010-9-5 1485 San Diego City of San Diego; North end of Balboa Park just S of corner Vermont & Cypress Streets at the bottom of the canyon. 71 Comment
  SD220210  Lactuca serriola Nancy Nenow 2010-8-28 1437 San Diego Cleveland National Forest; Puerta La Cruz Road; 2 miles SE Mitchell Camp Road and Chihuahua Valley Road; 5.7 miles N of Warner Springs and Hwy 79 1168 Comment
  SD220211  Lactuca serriola Nancy Nenow 2010-8-4 1394 San Diego Warner Springs Ranch west of highway 79 and just south of the golf club parking lot. 953 Comment
  SD22024  Lactuca serriola Frank F. Gander 1938-7-25 6163 San Diego Slaughter House Slough, National City. Comment
  SD22095  Lactuca serriola Frank F. Gander 1938-8-4 6233 San Diego Doane Valley, Palomar Mountain. Comment
  SD221575  Lactuca serriola Jon P. Rebman, W. Schmidtmann, G. Kenney, et al. 2011-6-2 22113 San Diego Camp Pendleton: southwestern corner of Base north of the Santa Margarita River mouth; Training Area Beach F, just south of the LCAC facility; in a small canyon off of the beach and its surrounding slopes and coastal bluff 4 Comment
  SD225450  Lactuca serriola Jon P. Rebman, W. Schmidtmann, G. Kenney, J. Martin 2012-5-30 24374 San Diego Camp Pendleton: Training Area Echo; west of Santa Margarita Peak; east of Case Springs Road, around Case Springs Lake 659 Comment
  SD225451  Lactuca serriola Jon P. Rebman, W. Schmidtmann and G. Kenney 2012-5-22 24006 San Diego Camp Pendleton: Training Area Romeo II; southeast of San Onofre Peak; along Horno Canyon Road east of El Camino Real and I-5 210 Comment
  SD22581  Lactuca serriola Frank F. Gander 1938-8-30 6370 San Diego Laguna Public Camp, Laguna Mountains. Comment
  SD22608  Lactuca serriola Frank F. Gander 1938-8-30 6397 San Diego Julian Comment
  SD22657  Lactuca serriola Frank F. Gander 1938-9-2 6446 San Diego Pine Valley Comment
  SD228121  Lactuca serriola Jon P. Rebman, W. Schmidtmann, J. Green, V. Marshall,T. Barckley 2012-5-31 24544 San Diego Lake Hodges: south of Escondido; southeast of the intersection of Lake Drive and Beech Lane; north side of Lake along the shore near a small walking pier and adjacent habitats 99 Comment
  SD22869  Lactuca serriola Frank F. Gander 1938-9-20 6503 San Diego Below Cuyamaca Dam. Comment
  SD22873  Lactuca serriola Frank F. Gander 1938-9-20 6507 San Diego Cuyamaca Peak Comment
  SD23057  Lactuca serriola Frank F. Gander 1938-10-5 6700 San Diego Spring Valley Comment
  SD23129  Lactuca serriola Frank F. Gander 1938-10-20 6766 San Diego Near Foster, Ramona Road. Comment
  SD231550  Lactuca serriola Jon P. Rebman, Victoria Marshall & Tom Barckley 2012-6-26 24994 San Diego Cleveland National Forest: vicinity of Buckman Springs, NE of Morena Reservoir; south of Morena Stokes Valley/Corral Canyon Rd. and west of Buckman Springs Road; along streambed 929 Comment
  SD23162  Lactuca serriola Frank F. Gander 1938-10-20 6799 San Diego 5 miles northeast of Ramona. Comment
  SD234825  Lactuca serriola G. K. Helmkamp, E. A. Helmkamp 2007-9-2 12881 El Dorado Foothills, northern Sierra Nevada Mountains: Grizzly Flat Road 5.2 miles ESE of Somerset, just west of Coles Station (Omo Ranch 7.5'Q) 957 Comment
  SD235244  Lactuca serriola Jon P. Rebman, John LaGrange & Jerry Greene 2012-6-7 24710 San Diego Barrett Lake: on Pig Point along the west side of Barrett Lake and just east of Barrett Lake Road 490 Comment
  SD23585  Lactuca serriola Frank F. Gander 1938-11-4 6865 San Diego La Jolla Comment
  SD23635  Lactuca serriola Frank F. Gander 1938-11-4 6915 San Diego San Luis Rey Valley near Oceanside. Comment
  SD238600  Lactuca serriola Jon P. Rebman, W. Schmidtmann & G. Kenney 2014-4-16 27897 San Diego Camp Pendleton: southeastern portion of Base; Training Area Lima; near the dam on Pilgrim Creek, east of the golf course and just west of the entrance on Vandergrift Blvd. 35 Comment
  SD238601  Lactuca serriola Jon P. Rebman, W. Schmidtmann & G. Kenney 2013-5-21 26626 San Diego Camp Pendleton: south-central portion of Base; Training Area SMR2; northeast of the intersection of Vandegrift Blvd. and Basilone Road; along the southeast side of the Santa Margarita River 24 Comment
  SD238602  Lactuca serriola Jon P. Rebman, W. Schmidtmann, G. Kenney, & M. Mulligan 2013-9-17 26965 San Diego Camp Pendleton: northeast portion of Base; Santa Margarita Mountains, Training Area Echo, vicinity of Case Springs Lake, east of the lake along creek 669 Comment
  SD238603  Lactuca serriola Jon P. Rebman, W. Schmidtmann & G. Kenney 2014-4-30 28159 San Diego Camp Pendleton: State Park Lease area: northwestern portion of Base; west of the intersection of Cristianitos Road & Talega Road; along Cristianitos Creek 53 Comment
  SD242486  Lactuca serriola John Groth 2010-8-7 297 San Diego Cleveland National Forest, Cuyamaca Mtns, W face of North Peak, 0.5 mile NNE Cosmit Peak along Grandview Way, 0 .5 mi. North of Engineers Road 1372 Comment
  SD243548  Lactuca serriola Larry Hendrickson 2011-7-7 5486 San Diego Banner Canyon, along State hwy. 78 (Banner Grade), 2.9 air miles ESE of Julian and 0.5 miles W of intersection of 78 and Chariot Canyon Road. 817 Comment
  SD243549  Lactuca serriola Joe Barth 2011-11-2 1908 San Diego SW corner of Washington Av and Magnolia Av, city of El Cajon. 136 Comment
  SD243836  Lactuca serriola 1978-8-29 San Diego Chariot Canyon Comment
  SD243837  Lactuca serriola 1978-8-24 San Diego Buck Canyon E001-04 Comment
  SD244334  Lactuca serriola Jon P. Rebman, M. Rood, J. & S. Rebman-Rood, I. Happle 2013-10-5 27105 San Diego Anza-Borrego Desert State Park: Oriflamme Canyon; southeast of Julian, west of Box Canyon & south of Granite Peak; riparian area off of Mason Valley Truck Trail 854 Comment
  SD244335  Lactuca serriola Jon P. Rebman, V. Marshall, J. Greene, D. Fosket, & J. Roberts 2013-5-29 26813 San Diego Lake Sutherland: northeast of Ramona; east of Lake Sutherland Dam Road; northeast end of Lake along a creekbed and east of the dam and spillway 630 Comment
  SD245277  Lactuca serriola Robert F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49541 Riverside Santa Ana Mountains: along Ortega Highway (74), perhaps 1/4 mile west of El Cariso. Comment
  SD245654  Lactuca serriola Jerry Green 2010-7-6 153 San Diego Sabre Springs; Just W of Poway; Chicarita Creek; E of Evening Creek Dr; N of Sabre Springs Prkwy; and W of Wimbley Square 124 Comment
  SD246357  Lactuca serriola Jon P. Rebman, W. Schmidtmann & G. Kenney 2015-5-6 30143 San Diego Camp Pendleton: southeast portion of Base; Juliet Training Area; north of Engineer Hill Rd.; along dirt road in a canyon 99 Comment
  SD246358  Lactuca serriola Jon P. Rebman, W. Schmidtmann & G. Kenney 2015-6-4 30428 San Diego Camp Pendleton: extreme northeastern portion of Base; Hotel Training Area; northwest of Fallbrook; along the Santa Margarita River and below De Luz Road 82 Comment
  SD247062  Lactuca serriola John LaGrange 2010-8-4 741 San Diego San Elijo Lagoon Preserve; S side of lagoon; just W of I-5; on trail 0.4 miles E of trailhead at N end of North Rios Avenue 11 Comment
  SD247809  Lactuca serriola Jerry Green 2012-8-14 287 San Diego Penasquitos; 4S Ranch; NE of Black Mountain Peak, near 0.31 mile S of Bernardo Ctr. Dr and Dove Canyon Rd. 174 Comment
  SD247810  Lactuca serriola Nancy Nenow, Lawrence Glacy 2011-8-25 2101 San Diego South of Chihuahua Valley; along Puerta La Cruz Road; 2 miles SE of junction Chihuahua Valley Road and Old Mitchell Camp Road; just NE of a concrete bridge 1162 Comment
  SD252018  Lactuca serriola Nancy Nenow 2012-7-12 2622 San Diego Balboa Park; E of Pershing Drive; W and below Golden Hill Drive and south of 26th Street. 53 Comment
  SD252528  Lactuca serriola Nancy Nenow 2012-7-12 2634 San Diego Leucadia; near corner of B Street and west of South Coast Highway along a stream in a small park. 11 Comment
  SD254228  Lactuca serriola Jon Rebman, W. Schmidtmann, & G. Kenney 2016-4-12 31650 San Diego Camp Pendleton: eastern portion of Base; Juliet Training Area; southwest of Fallbrook & west of Bonsall; west of the Base boundary & to the east of Vandegrift Blvd. 54 Comment
  SD254229  Lactuca serriola Jon Rebman, W. Schmidtmann & G. Kenney 2015-8-4 30460 San Diego Camp Pendleton: central portion of Base; north of Lake O'Neil Rd.; northeast side of Lake O'Neil in the vicinity of a bridge over a small wetland 35 Comment
  SD25824  Lactuca serriola Frank F. Gander 1939-9-14 7743 San Diego Campo Indian Reservation. Comment
  SD26004  Lactuca serriola Frank F. Gander 1939-10-20 7823 San Diego Boulevard Comment
  SD261988  Lactuca serriola Jon Rebman, W. Schmidtmann, & G. Kenney 2016-8-24 31890 San Diego Camp Pendleton: west-central portion of Base; Oscar Two Training Area; along Las Pulgas Canyon Road east of Stuart Mesa Road and west of Basilone Road 20 Comment
  SD263377  Lactuca serriola Onkar Singh, M. Honer 2015-6-24 5510 San Diego Naval Weapons Station Seal Beach Detachment Fallbrook, South Magazine, western end of study area L, ca. 275 m north of Pilgrim Creek. 185 Comment
  SD29170 Image available Lactuca serriola Frank F. Gander 1941-7-22 9594 San Diego Balboa Park, San Diego Comment
  SD29171  Lactuca serriola Frank F. Gander 1941-7-28 9595 San Diego Santee Comment
  SD48377  Lactuca serriola Charles H. Quibell, Edith M. Quibell 1953-9-26 3560 Fresno West Belmont Ave. somewhere near Jameson Ave., 11 miles west of Fresno on the flat of the San Joaquin Valley. Comment
  SD53606 Image available Lactuca serriola E. Norland 1963-7-29 San Diego In roadside ditch near southwest corner of Kenora Dr. and Campo Hwy., Spring Valley. Comment
  SD69732  Lactuca serriola Robert F. Thorne 1966-4-29 36276 Los Angeles Santa Catalina Island above ranch in Middle Ranch Canyon. 230 Comment
  SDSU12328  Lactuca serriola Michael G. Simpson 1996-6-13 13 VII96D San Diego South of Kumeyaay Lake, Mssion Trails Regional Park. 91 Comment
  SDSU13575  Lactuca serriola W. Miller 1972-8-9 Riverside Comment
  SDSU14506  Lactuca serriola Craig H. Reiser, Kyle L. Ince 1990-6-22 22 -VI-90 San Diego Camp Joseph Pendleton MCB. San Diego County, California. Base Section:Oscar I. 9 Comment
  SDSU16630  Lactuca serriola Robert Lauri 2003-8-5 560 San Diego South of Palomar State Park. North side of Hwy S6, near mile marker 45, ca. 4.1 miles north of junction with Hwy 76. 1289 Comment
  SDSU2752  Lactuca serriola F. Young Berg 1932-7-21 1580 San Diego Campus. Comment
  SEINET1004942  Lactuca serriola Jon P. Rebman, J. Gregory, K. Rich, P. Famolaro 2007-1 13847 San Diego Sweetwater Reservoir; east of National City and south of La Presa; canyon just below the dam on the west side of the reservoir. 45 Comment
  SEINET11446729 Image available Lactuca serriola M. Lavin 1980-8-13 SW 127 Mono E Walker River-N of Bridgeport CA, along Rt 22 Comment
  SEINET13386966 Image available Lactuca serriola George K. Helmkamp, Ann Kerchner, Amy Barnes 2012-1 19510 Sierra Northern Sierra Nevada Mountains: Stampede Dam Road, 1.7 miles north of the Nevada County line, just east of Stampede Reservoir 1769 Comment
  SEINET2442710  Lactuca serriola George K. Helmkamp, E. A. Helmkamp 2009-8-6 15399 Amador Sierra Nevada Mountains Foothills. Along Hwy CA-88, 3.1 miles northeast of CA-49 in Jackson. 424 Comment
  SEINET3245869  Lactuca serriola G. K. Helmkamp, E. A. Helmkamp 2009-1 15562 Sutter Sacramento Valley: along Nicolaus Ave. 2.2 miles northwest of the Placer Co. line, 4.4 miles ENE (86 deg. ) of Nicolaus. 8 Comment
  SEINET6082268  Lactuca serriola Unknown 1987-5-10 3091 San Diego Torrey Pines State Park. Comment
  SEINET7989638  Lactuca serriola Melvin M. Sweet 2006-7-21 375 San Diego San Diego city, along utility road in canyon running from Eage Mall .0.75 mi. NW of the intersection of Eage and Genesee Ave, to the end of Roselle St. 70 Comment
  SEINET9775665 Image available Lactuca serriola Richard Carter 2006-7-30 Butte N Chico, 0.3 mi N jct. Nord Hwy and Esplanade, between Esplanade and Hwy CA 99 Comment
  SFV18162  Lactuca serriola J. N. Hogue 1997-7-10 91 .1 Los Angeles Los Angeles, Eagle Rock. 152 Comment
  SJSU14463  Lactuca serriola N. A. Hopkins 1990-8-29 1636 Plumas Marble Hot Springs Rd 1493 Comment
  UC1051586  Lactuca serriola Joseph P. Tracy 1943-11-28 17460 Humboldt gravel bars <from> Alton to Fortuna; Eel River 15 Comment
  UC1051587  Lactuca serriola Joseph P. Tracy 1943-11-28 17461 Humboldt Alton to Fortuna (Eel River); Eel River 15 Comment
  UC1069688  Lactuca serriola H. S. Yates 1936-7-26 5939 Alameda 1 mi se Melrose; Concord Quad. 3 Comment
  UC1069689  Lactuca serriola H. S. Yates 1935-10-3 5344 Sonoma Santa Rosa Santa Rosa Quad., Santa Rosa 53 Comment
  UC1177052  Lactuca serriola Henry M. Pollard 1957-8-15 Santa Barbara Turner Road between Goleta and drainage canal bridge Comment
  UC1177053  Lactuca serriola Henry M. Pollard 1958-8-15 Santa Barbara Turner Road between Goleta and drainage canal bridge Comment
  UC1177282  Lactuca serriola John Thomas Howell 1939-11-5 Marin Manzanita Comment
  UC1177283  Lactuca serriola John Thomas Howell 1939-11-5 Marin Manzanita Comment
  UC1191980  Lactuca serriola Malcolm A. Nobs and S. Galen Smith 1948-7-19 167 Merced 2 mi n Los Banos; Los Banos Wildlife Refuge Comment
  UC1191981  Lactuca serriola Malcolm A. Nobs and S. Galen Smith 1948-7-8 46 Merced 1.5 mi n Los Banos; Los Banos Wildlife Refuge Comment
  UC1223072  Lactuca serriola Joseph P. Tracy 1949-8-8 18402 Humboldt at Willow Creek (in Frank Graham's orchard); Trinity River Valley 152 Comment
  UC1223228  Lactuca serriola Joseph P. Tracy 1949-8-8 18403 Humboldt at Willow Creek (Frank Graham's orchard); Trinity River Valley 152 Comment
  UC1239533  Lactuca serriola Joseph P. Tracy 1946-8-25 17650 Humboldt Alton to Fortuna (Eel River); Eel River 15 Comment
  UC1239535  Lactuca serriola Joseph P. Tracy 1934-8-14 13577 Humboldt Holmes Flat North Coast Ranges, Holmes Flat 60 Comment
  UC127119  Lactuca serriola Harley P. Chandler Sep 7 1906-Sep 14 1906 7111 Napa Alta Loma Ranch Howell Mountain 487 Comment
  UC127996  Lactuca serriola Harriet A. Walker 1907-9-22 1002 Solano Suisun Comment
  UC1357809  Lactuca serriola Ronald E. Foreman 1965-7-28 112 Ventura along airfield runways and roads San Nicolas Island 167 Comment
  UC1392757  Lactuca serriola R. F. Hoover 1969-8-15 11543 San Luis Obispo Santa Rosa St. near Foothill Blvd.; San Luis Obispo Comment
  UC1536759  Lactuca serriola G. H. True 1937-10-12 843 Napa roadside near Lokoya Lodge 304 Comment
  UC1548583  Lactuca serriola D. A. Roberts 1983-7-23 FS 94 Mono Rocked-in-Spring Owens Valley, Fish Slough (ne end of slough, 4.5 mi n of Bishop at northern end of Owens Valley) Comment
  UC164806  Lactuca serriola Joseph P. Tracy 1903-10-22 1986 Alameda Berkeley Region about San Francisco Bay 91 Comment
  UC166154  Lactuca serriola Geo. D. Butler 1908-7-28 981 Siskiyou near Yreka (Garden) Comment
  UC1922759  Lactuca serriola Valerie Soza, LeRoy Gross, Marisa Sripracha 2001-7-20 1347 Los Angeles Transverse Ranges; Verdugo Mountains region; La Tuna Canyon, along La Tuna Canyon Road. 427 Comment
  UC1929907  Lactuca serriola Scott D. White, Angelia Carey 2004-7-2 10572 Riverside San Jacinto Mountain foothills: Soboba Indian Reservation, Poppet Creek Canyon. San Jacinto 7.5' Quad. Comment
  UC2044826  Lactuca serriola Nick Jensen with Neal Kramer 2014-9-8 2528 Kern Tejon Ranch. Eastern fork of Bronco Canyon, Tunnel Spring area at the base of the Tehachapi Mountains. Comment
  UC2045090  Lactuca serriola Nick Jensen with Neal Kramer 2014-9-7 2480 Kern Tejon Ranch. Tejon Hills, Comanche Point. In and immediately around Comanche Spring. Comment
  UC249879  Lactuca serriola Joseph P. Tracy 1923-9-23 6561 Humboldt Alton Northern Coast Region 30 Comment
  UC33041  Lactuca serriola F. T. Bioletti Aug 1891 Sacramento Sacramento Comment
  UC33042  Lactuca serriola J. Burtt Davy 1900-7-28 7051 Santa Clara Berryessa Comment
  UC33043  Lactuca serriola Mr. Gates 1899-8-11 Alameda Pleasanton Comment
  UC33045  Lactuca serriola J. W. Congdon 1897-8-11 Santa Clara Palo Alto Comment
  UC33047  Lactuca serriola J. W. Congdon 1897-8-11 Santa Clara Palo Alto Comment
  UC33049  Lactuca serriola J. Burtt Davy 1898-5-1 4275 Colusa near Willows Comment
  UC418962  Lactuca serriola H. E. Parks 1930-8-25 702 Alameda Strawberry Canyon Berkeley Comment
  UC455897  Lactuca serriola I. J. Condit 1910-7-22 San Luis Obispo Cal. Poly. State. grounds Cal. Poly. State. Comment
  UC455898  Lactuca serriola I. J. Condit 1910-7-19 San Luis Obispo C. P. S. <California Polytechnic School> grounds San Luis Obispo Comment
  UC519736  Lactuca serriola Joseph Andorfer Ewan 1932-7-11 7471 Los Angeles Ingraham Street Los Angeles (in garden) Comment
  UC56938  Lactuca serriola Ernest Braunton 1902-6-30 501 Los Angeles Los Angeles Comment
  UC642553  Lactuca serriola W. B. Cooke 1939-8-4 17398 Siskiyou along Sisson Southern Trail; Mount Shasta Comment
  UC685583  Lactuca serriola Bob Rodin 1943-8-14 317 Alameda on lower road near Botanical Garden; Berkeley, University of California campus, Strawberry Canyon Comment
  UC685585  Lactuca serriola Bob Rodin 1943-7-17 267 Alameda on sw ridge Strawberry Canyon; Berkeley, University of California Campus, Strawberry Canyon Comment
  UC691777  Lactuca serriola Mary L. Bowerman 1930-10-4 483 Contra Costa Maple Spring Mount Diablo Comment
  UC691779  Lactuca serriola Mary L. Bowerman 1933-9-3 2420 Contra Costa spring ne Meridian-North saddle (below North Peak ridge); Mount Diablo Comment
  UC691780  Lactuca serriola Mary L. Bowerman 1932-9-24 1591 Contra Costa ridge running w from Twin Peaks; Mount Diablo 335 Comment
  UC71919  Lactuca serriola Mrs. M. H. Manning 253 Modoc near Fort Bidwell (ne Modoc County) Comment
  UC729889  Lactuca serriola Carl B. Wolf 1932-7-7 3839 Orange s edge of field 100 ft w Hansen Road; Bryant Ranch, Bixby Ave. 48 Comment
  UC828857  Lactuca serriola Mrs. W. J. Williamson 1919-6-20 269 Tuolumne French Flat 426 Comment
  UC828864  Lactuca serriola A. A. Heller 1916-9-9 12654 Butte near Durham Comment
  UC91977  Lactuca serriola T. S. Brandegee 1893-7-9 San Joaquin Bouldin Island Comment
  UC91988  Lactuca serriola T. S. Brandegee Sep 1883 Kern Tehachapi Comment
  UCD125384  Lactuca serriola Ellen Dean; G. Golden, J. Ainsworth, A. Darraugh 2012-7-26 7480 El Dorado Lake Tahoe Basin. Sugar Pine Point State Park. Near where General Creek crosses highway 89. West side of highway 89 on north side of General Creek. 1918 Comment
  UCD125432  Lactuca serriola Ellen Dean; G. Golden, J. Ainsworth, A. Darraugh 2012-7-26 7480 El Dorado Lake Tahoe Basin. Sugar Pine Point State Park. Near where General Creek crosses highway 89. West side of highway 89 on north side of General Creek. 1918 Comment
  UCD132424  Lactuca serriola Beecher Crampton 1957-10-25 4640 Yolo West Sacramento, along the US Hwy. 40 freeway. Comment
  UCD132425  Lactuca serriola Beecher Crampton 1957-10-25 4640 Yolo West Sacramento, along the US Hwy. 40 freeway. Comment
  UCD133534  Lactuca serriola A. S. Crafts 1926-7-8 419 Yolo University Farm Campus. Davis. Comment
  UCD133545  Lactuca serriola G. K. Helmkamp; E. A. Helmkamp 2006-8-24 11272 El Dorado Northern Sierra Nevada Mountains: Ice House Road, 2.3 miles south of Union Reservoir Road. 1552 Comment
  UCD133546  Lactuca serriola G. K. Helmkamp; E. A. Helmkamp 2007-9-2 12881 El Dorado Northern Sierra Nevada Mountains. Grizzly Flat Road, 5.2 miles ESE of Somerset, just W of Coles Station. 957 Comment
  UCD133547  Lactuca serriola G. K. Helmkamp; E. A. Helmkamp 2007-9-24 13005 Calaveras Northern Sierra Nevada Mountains: in Rich Gulch along Gwin Mine Road, 1.2 miles north fo Paloma. 329 Comment
  UCD133548  Lactuca serriola Henry M. Pollard 1959-9-5 s.n. Santa Barbara Fairview Road near Airport, Goleta Comment
  UCD133552  Lactuca serriola Chas. H. Quibell; Edith M. Quibell 1953-9-26 3560 Fresno West Belmont Ave. somewhere near Jameson Ave. About 11 miles west of Fresno on the flat of the San Joaquin Valley. Comment
  UCD133556  Lactuca serriola Clifton F. Smith 1944-8-13 1088 Santa Barbara Mission Canon and Tunnel Roads, Mission Canon, Santa Barbara. Comment
  UCD133557  Lactuca serriola J. H. Thomas 1953-10-3 3585 Santa Cruz northern end of Hilton Aiport, between airstrip and highway. 243 Comment
  UCD133559  Lactuca serriola Ernest C. Twisselmann 1958-8-11 4630 San Luis Obispo San Luis Obispo County: Dorothy Twisselmann Ranch, eastern part of county. Temblor Range and the Western San Joaquin Valley. 670 Comment
  UCD133560  Lactuca serriola W. R. Dudley 1908-11-11 s.n. Santa Clara Stanford University. Comment
  UCD133567  Lactuca serriola Henry M. Pollard 1958-8-15 s.n. Santa Barbara Fairview Road between Goleta and drainage canal bridge. Comment
  UCD133569  Lactuca serriola Henry M. Pollard 1958-8-15 s.n. Santa Barbara Fairview Road between Goleta and drainage canal bridge. Comment
  UCD133572  Lactuca serriola Clifton F. Smith 1944-8-13 1085 Santa Barbara Canon trail in Botanic Garden, Santa Barbara. Comment
  UCD144644  Lactuca serriola Alice Warrick 2006-6-1 s.n. Napa Quail Ridge UC Reserve. 2005 Pleasure Fire burn site, along west loop road, north of Decker canyon. 243 Comment
  UCD148925  Lactuca serriola Albert Grigarick 2013-9-6 364 Nevada Town of Truckee, 11441 Lockwood Dr. Comment
  UCD149337  Lactuca serriola Collector Unknown 1938-6-30 s.n. Yolo City of Woodland. 25 Comment
  UCD15859  Lactuca serriola K. Mawdsley 1998-9-26 65 Solano STEBBINS COLD CANYON RESERVE. South of CA 128 just east of Monticello Dam on Lake Berryessa, 7 mi. W of Winters. Widespread along Homestead Trail. 106 Comment
  UCD158720  Lactuca serriola Teresa A. Sholars 1976-9-10 s.n. Sonoma Mayacmas Mtns. At the end of the road leading to headwaters of Big Sulphur Creek. Ca. 2 mi southeast of the junction of Pine Flat Rd. and Socrates Mine Rd. Elevation estimated by label maker. 975 Comment
  UCD159370  Lactuca serriola D. S. Park 2010-7-4 152 -1 San Luis Obispo San Luis Obispo County: Paso Robles. Green Valley Rd. side. Near rapids. 405 Comment
  UCD159371  Lactuca serriola D. S. Park 2010-7-4 152 -2 San Luis Obispo San Luis Obispo County: Paso Robles. Green Valley Rd. side. Near rapids. 405 Comment
  UCD159422  Lactuca serriola D. S. Park 2010-7-14 181 Yolo UC Davis campus, east of Science Lecture Bldg. 10 Comment
  UCD159452  Lactuca serriola D. S. Park 2010-8-5 208 -1 Yolo North Davis. Along W Covell Blvd. Roadside, disturbed. Outskirts of agricultural field. Growing in ditch. 14 Comment
  UCD159453  Lactuca serriola D. S. Park 2010-8-5 208 -2 Yolo North Davis. Along W Covell Blvd. Roadside, disturbed. Outskirts of agricultural field. Growing in ditch. 14 Comment
  UCD159456  Lactuca serriola D. S. Park; K. Yeo 2010-8-7 210 Contra Costa Mt. Wanda hiking trail. Growing on shaded slope w/ Sonchus sp. Common. 85 Comment
  UCD166037  Lactuca serriola Daniel M. McNair 2016-8-2 2187 El Dorado west side of Tahoe Basin at D.L. Bliss State Park. 1897 Comment
  UCD168436  Lactuca serriola Ellen Dean 2017-3-15 9258 Yolo Audubon Bobcat Ranch, lands north of Hwy 128, just east of Monticello Dam. Bray Canyon and vicinity on the western side of ranch. Ranch burned once each year in 2014, 2015, 2016. 2017 has been a high rainfall year. Lower reaches of Bray Canyon. 62 Comment
  UCD20756  Lactuca serriola M. Bibbo; with E. Dean and K. Mawdsley 2002-8-29 105 Napa McLaughlin UC Reserve. Just S of the reserve on Adam's Ridge Rd. 1.6 road miles E of the jct with Devilhead Rd. 640 Comment
  UCD38757  Lactuca serriola Beecher Crampton 1957-10-25 4639 Yolo West Sacramento, along the US Hwy. 40 freeway. Comment
  UCD38758  Lactuca serriola Beecher Crampton 1957-10-25 4640 Yolo West Sacramento, along the US Hwy. 40 freeway. Comment
  UCD46572  Lactuca serriola Ellen Dean; David Popp and Kate Mawdsley 2005-6-11 2668 Sacramento California: Sacramento County, Deer Creek Hills Reserve. South side of Latrobe Rd., along dirt road which begins at gate located 0.6 road miles east of Corral Gate entrance. We traveled 0.5 road miles south of Latrobe Rd, before beginning to walk south. 63 Comment
  UCD50125  Lactuca serriola M. Tu 1995-9-12 182 Sacramento Cosumnes River Preserve Plant Inventory - Tall Forest. Collected from the southern end of the Tall Forest, about 150 m E from the pump station. 1 Comment
  UCD55508  Lactuca serriola J. Shepard 2003-6-15 609 Yolo Yolo County Grasslands Park: East of Davis, from intersection of I-80 and Mace Blvd., 3.5 mi. south on Mace Blvd. (County Road 104), thence east .2 mi. along unpaved entrance road, then nearly .5 mi south toward Co. Rd. 36, 20 yd. north of the road. 12 Comment
  UCD74454  Lactuca serriola J. E. Sandoval 1995-7-30 49 Merced Great Valley Grasslands State Park (encompasses the former Fremont Ford State Recreation Area). South of the town of Stevinson, 1 mi. south of Hwy 140 on Hwy 165. 17 Comment
  UCD80975  Lactuca serriola Ellen Dean; R. Rawson, J. Herford, A. Weidling, H. McGinnis 2009-4-1 5358 Yolo city of Woodland. Mavis Henson field property on the east side of County Road 102, just south of County Road 25. Property owned by city of Woodland. Western side of property used by model airplane club. 9 Comment
  UCD87626  Lactuca serriola Ellen Dean; K. Mawdsley, R. and R. Norris,T. and M. Starbuck,G. Walden 2010-6-30 6516 Alpine Grover Hot Springs State Park, W of town of Markleeville. N of Hot Springs Creek along lower reaches of Buck Creek where it transitions into meadow. 1794 Comment
  UCR103538  Lactuca serriola George K. Helmkamp, E. A. Helmkamp 1997-9-9 2300 Alpine Sierra Nevada Mtns., junction of Calif. Hwy 89 and Calif. Hwy 4, south of Markleeville 1799 Comment
  UCR109549  Lactuca serriola R. Kirkland 1974-7-15 s.n. San Bernardino San Bernardino Valley, Redlands, on Hwy 38 451 Comment
  UCR109971  Lactuca serriola R. D. Goeden, Don W. Ricker 1979-6-27 s.n. Santa Barbara Pacific Coast, Goleta 6 Comment
  UCR117333  Lactuca serriola Mitch Provance 1998-6-11 664 Riverside Jurupa Mountains, Pediment of the NW Jurupa Mtns., area SE of the eastern extreme of Philadelphia St. 267 Comment
  UCR119028  Lactuca serriola Beecher Crampton 1954-10-20 2297 Yolo Sacramento Valley, 5 miles east of Davis. 15 Comment
  UCR121822  Lactuca serriola A. C. Sanders, Mark Elvin, Jane Rodgers 2001-8-17 24604 Riverside Mojave Desert, Little San Bernardino Mtns, Stubbe Spring, Joshua Tree National Park, 4.35 mi. (airline) SW from park road in Lost Horse Valley 1372 Comment
  UCR128658  Lactuca serriola Mark A. Elvin, J. P. Rebman 2003-9-30 3071 San Diego Peninsular Range, San Ysidro Mountains, Otay Mtn., along U.S./Mexico border at base of 'Wild Bill's Draw 305 Comment
  UCR130501  Lactuca serriola R. E. Riefner Jr. 2000-8-29 00- 758 Los Angeles Western Transverse Range; Verdugo Mtns., La Tuna Canyon, Verdugo Mtns. Conservancy Park, second canyon at picnic stop along La Tuna Canyon Rd. 2.5 miles south of 210 Freeway exit 462 Comment
  UCR134429  Lactuca serriola George K. Helmkamp 2003-9-19 8151 San Luis Obispo Central Coast, Nipomo Mesa area. Pomeroy Rd, 0.2 mi south of Los Berros Rd. 76 Comment
  UCR146639  Lactuca serriola Jon P. Rebman, Jeannie Gregory 2003-7-25 9426 San Diego Peninsular Range, Rancho Jamul Ecological Reserve: west of Hwy. 94, south of Jamul & north of Otay Lakes Road; dried pond east of Jamul Creek 240 Comment
  UCR146980  Lactuca serriola George K. Helmkamp, E. A. Helmkamp 2004-10-8 8850 San Luis Obispo Central Coast, Biddle Regional Park, 7 mi NE of Arroyo Grande along Lopez Drive and Arroyo Grande Creek 136 Comment
  UCR149803  Lactuca serriola Scott D. White, Pam Devries 2004-6-14 10493 A Los Angeles Western Transverse Ranges, Eastern Santa Susana Mountains. West of the I-5 Freeway, c. 4 mi N of I-5 / SH-14 jtn and 6 mi south of Castaic Junction. Lyon Canyon and surrounding slopes, canyons, and ridges. 518 Comment
  UCR156132  Lactuca serriola Jon P. Rebman, J. Gregory and J. Rocks 2004-6-1 10557 San Diego Otay Mountain Ecological Reserve (California Dept. of Fish & Game): Southeast of Otay Lake; south of Otay Lakes Road, just north of the old olive grove 375 Comment
  UCR158841  Lactuca serriola Scott D. White 1994-8-16 2350 San Bernardino San Bernardino Mtns, between Hwy 18 and the southwest shore of Big Bear Lake between Kidd Cove and Fisher Cove 2073 Comment
  UCR159252  Lactuca serriola A. C. Sanders, Kelly Volansky 2005-8-31 31573 Riverside Santa Ana Mtns. Region, Santa Rosa Plateau, hills west of headwaters of De Luz Creek, 50 acre parcel on east side Avenida La Cresta south of Sierra Elena Rd., c. 0.5 mi. N of Tenaja Rd. 701 Comment
  UCR162305  Lactuca serriola A. C. Sanders, T. B. Salvato 2005-10-5 31719 San Diego Peninsular Range, Blue Sky Ecological Reserve (DFG), east of Rancho Bernardo and north of Poway, along road in lower canyon below turnoff to Lake Poway 213 Comment
  UCR162524  Lactuca serriola A. C. Sanders, T. B. Salvato 2005-10-14 31881 San Diego Peninsular Range, Boden Canyon Ecological Reserve (DFG), tributary of Santa Ysabel Creek at E end of San Pasqual Valley; along the road between Santa Ysabel Creek and the pond (reservoir) in middle DFG parcel, W & SW foot of Orosco Ridge 335 Comment
  UCR162807  Lactuca serriola A. C. Sanders, T. B. Salvato 2005-10-14 31870 San Diego Peninsular Range, Palomar Mtn., Plaisted Creek Ecological Reserve, NE of Rincon & Pauma Valley, between Plaisted Cr. and Hwy 76, SE lobe of reserve near residences abandoned in 1996 793 Comment
  UCR163180  Lactuca serriola Anuja Parikh, Nathan Gale 2004-6-21 2053 Los Angeles Santa Clara River Valley, Newhall Ranch (study area 29), near mouth of Chiquito Canyon 396 Comment
  UCR163329  Lactuca serriola A. C. Sanders, T. B. Salvato 2005-10-12 31848 San Diego South Coast, Carlsbad, Carlsbad Highlands Ecological Reserve, permanent spring in canyon c. 0.75 mile SE of Cerro de la Calavera 61 Comment
  UCR167858  Lactuca serriola T. B. Salvato, Melissa Clemons 2005-6-23 1327 Riverside Peninsular Range; Temescal Valley, 3 miles NW of Alberhill, Temescal Canyon Road at Corona [Lee] Lake 366 Comment
  UCR170571  Lactuca serriola George K. Helmkamp, E. A. Helmkamp 2005-9-9 9845 El Dorado Northern Sierra Nevada Foothills, E of Sacramento; Squaw Hollow area at junction of Hanks Exchange Road and Ranch Road, 0.9 mi south of Pleasant Valley Road 683 Comment
  UCR171428  Lactuca serriola Margaret R. Mulligan, Joe Barth 2005-8-9 1328 San Diego Walker Canyon Ecological Reserve (California Fish & Game): between the towns of Boulevard and Jacumba on the north side of Interstate 8. Western half of riparian zone. San Diego Atlas Square T27 943 Comment
  UCR171653  Lactuca serriola Margaret R. Mulligan, Joe Barth 2005-7-26 1248 San Diego McGinty Mountain Ecological Reserve (California Fish & Game). SE of city El Cajon. SE of intersection of Willow Glen Dr and Hillsdale Road. San Diego Atlas Square R14 116 Comment
  UCR175997  Lactuca serriola A. C. Sanders, Kent Beaman, T. B. Salvato, et al 2006-9-8 33131 San Bernardino San Bernardino Mtns., east of Running Springs School Rd. at the SE edge of Running Springs, south of Hwy 18 near Seymour Flat 1890 Comment
  UCR179313  Lactuca serriola George K. Helmkamp, E. A. Helmkamp 2006-8-24 11272 El Dorado Northern Sierra Nevada Mountains Foothills, Ice House Road, 2.3 miles south of Union Reservoir Road 1552 Comment
  UCR179324  Lactuca serriola George K. Helmkamp, E. A. Helmkamp 2006-10-10 11509 Nevada Northern Sierra Nevada Mountains Foothills, along Calif. Hwy 49, 10.4 miles north of the crossing of the South Yuba River 543 Comment
  UCR188524  Lactuca serriola George K. Helmkamp, E. A. Helmkamp 2007-9-24 13005 Calaveras Northern foothills, Sierra Nevada Mountains, in Rich Gulch along Gwin Mine Road, 1.2 miles north of Paloma 329 Comment
  UCR190051  Lactuca serriola R. G. Swinney 1998-8-1 6603 Los Angeles San Gabriel Mtns., Mine Gulch at East Fork of San Gabriel River Canyon 1372 Comment
  UCR190578  Lactuca serriola George K. Helmkamp, E. A. Helmkamp 2007-9-2 12881 El Dorado Northern Sierra Nevada Mountains Foothills, Grizzly Flat Road 5.2 miles ESE of Somerset, just west of Coles Station 957 Comment
  UCR193005  Lactuca serriola A. C. Sanders, Fred M. Roberts 2008-6-17 35457 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Hicks Canyon Haul Road 0.5 mi. east of the Foothill Transportation Corridor 244 Comment
  UCR194707  Lactuca serriola George K. Helmkamp, E. A. Helmkamp 2007-10-28 13106 Placer Sacramento Valley, along Nicolaus Road 5.8 miles west of Lincoln 27 Comment
  UCR195006  Lactuca serriola A. C. Sanders, Fred M. Roberts 2008-8-7 36001 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon at powerline crossing, 1.0 mi. (air) SSE of Walnut Canyon Reservoir 226 Comment
  UCR199607  Lactuca serriola Scott D. White, Angelia Carey 2004-7-2 10572 Riverside San Jacinto Mountain foothills, Soboba Indian Reservation, Poppet Creek Canyon 610 Comment
  UCR199993  Lactuca serriola Valerie Soza, LeRoy Gross, Marisa Sripracha 2001-7-20 1347 Los Angeles Transverse Ranges; Verdugo Mountains, La Tuna Canyon, along La Tuna Canyon Road 427 Comment
  UCR201579  Lactuca serriola George K. Helmkamp, E. A. Helmkamp 2008-10-2 14191 Sacramento Sacramento Valley, Latrobe Road, 4.9 miles west of Latrobe and just east of the El Dorado Co. line 152 Comment
  UCR201939  Lactuca serriola George K. Helmkamp, E. A. Helmkamp 2008-10-6 14202 Yuba Sacramento Valley, junction of CA-65 and Ostrom No. 3 Road, southeast of Olivehurst 24 Comment
  UCR203228  Lactuca serriola R. G. Swinney 2005-7-21 8317 Los Angeles San Gabriel Mountains, Juniper Hills, 0.4 mi south of the junction of Longview Road and Tumbleweed Road, Mike Booth property 1216 Comment
  UCR204818  Lactuca serriola R. G. Swinney 2005-8-22 8516 Los Angeles San Gabriel Mountains, Devil's Punchbowl County Park, lower Holcomb Canyon 1354 Comment
  UCR204874  Lactuca serriola R. G. Swinney 2005-8-9 8401 Los Angeles San Gabriel Mountains, Big Rock Creek at Paradise Springs 1439 Comment
  UCR205140  Lactuca serriola George K. Helmkamp, E. A. Helmkamp 2008-10-14 14244 Colusa Sacramento Valley, along CA-20, 0.2 mile east of the Sutter County line 9 Comment
  UCR205149  Lactuca serriola George K. Helmkamp, E. A. Helmkamp 2008-10-30 14293 Sacramento Southern Sacramento Valley, along Highway E13 (Twin Cities Road) 4.4 miles west of its junction with CA-99 5 Comment
  UCR209564  Lactuca serriola George K. Helmkamp, E. A. Helmkamp 2009-8-6 15399 Amador Sierra Nevada Mountains Foothills, along Hwy CA-88, 3.1 miles northeast of CA-49 in Jackson 424 Comment
  UCR210212  Lactuca serriola R. G. Swinney 2008-9-10 9409 Los Angeles San Gabriel Mtns., South Fork Big Rock Creek 1463 Comment
  UCR210463  Lactuca serriola R. G. Swinney 2008-11-7 9790 San Bernardino San Bernardino Valley/ San Gabriel Mtns., Glen Helen Regional Park, marsh to the west of the fishing lakes 610 Comment
  UCR210635  Lactuca serriola R. G. Swinney 2008-10-23 9686 San Bernardino San Gabriel Mtns., Clyde Ranch, Lone Pine Canyon 1500 Comment
  UCR212958  Lactuca serriola Justin M. Wood, Dustin Ray 2009-7-9 1047 San Bernardino San Bernardino Mountains, Cienaga Seca Creek, between Heart Bar Campground (Fish Creek Trail) and 7,000 ft marker 2134 Comment
  UCR217694  Lactuca serriola A. C. Sanders, Dan S. Cooper 2010-8-5 38544 Los Angeles South Coast, Madrona Marsh Preserve, Torrance 24 Comment
  UCR21851  Lactuca serriola Steve Boyd 1980-7-16 s.n. Riverside Perris Basin, Motte Reserve, 2.5 miles NW of Perris, west edge of the reserve c. 1/4 mile north of the Motte's house 520 Comment
  UCR218954  Lactuca serriola George K. Helmkamp, E. A. Helmkamp 2009-8-30 15562 Sutter Sacramento Valley, along Nicolaus Ave., 2.2 miles northwest of the Placer Co. line, 4.4 miles ENE (86 deg. ) of Nicolaus 8 Comment
  UCR22000  Lactuca serriola Steve Boyd 1980-7-12 336 Riverside Gavilan Hills, Harford Springs County Park, NW corner of the Gavilan plateau 610 Comment
  UCR220189  Lactuca serriola R. G. Swinney 2009-4-7 10297 Los Angeles Transverse Ranges; San Gabriel Mtns. Foothills and S.G. Valley, Azusa/Irwindale, between the I-210 Fwy and Foothill Blvd., on west side of San Gabriel River channel 169 Comment
  UCR228003  Lactuca serriola Jon P. Rebman, Layla Aerne Hains, Lisa Young, R. Kurner 2009-9-15 18337 San Diego Palomar Mountains, Cleveland National Forest, along a bulldozer path west of Cutca Valley Truck Trail in the northern foothills of the mountains, north of Cutca Valley. Square: C14 1190 Comment
  UCR232174  Lactuca serriola George K. Helmkamp, E. A. Helmkamp 2011-10-8 18403 Glenn Northern Sacramento Valley, Road 60 (Riz Rd) at the junction with Co. Road P, 5.1 miles SE (144 deg. ) of Willows 30 Comment
  UCR232629  Lactuca serriola George K. Helmkamp, E. A. Helmkamp 2011-10-13 18418 El Dorado Northern Sierra Nevada Mountains Foothills, Forebay Road, 8.1 miles northwest of Pollock Pines, at north side of bridge over the South Fork American River 596 Comment
  UCR232669  Lactuca serriola George K. Helmkamp, E. A. Helmkamp 2011-10-15 18444 Stanislaus Eastern San Joaquin Valley, along J-4 (Milton Rd.), 1.7 miles south of its junction with CA-4, 12 mi. NE (44 deg. ) of Escalon 64 Comment
  UCR235281  Lactuca serriola George K. Helmkamp, E. A. Helmkamp 2011-11-28 18491 Sutter Sacramento Valley, Worth Road, 0.2 mile east of its junction with Garden Highway, 4 miles southwest of Nicolaus 14 Comment
  UCR236606  Lactuca serriola Jon P. Rebman, John Martin & volunteers 2011-5-31 21976 San Diego San Diego National Wildlife Refuge, east of Bonita and just south of the Sweetwater Reservoir; Shinohara Vernal Pool area. Square T12. [San Miguel Ave. just N of Hwy 125] 90 Comment
  UCR238270  Lactuca serriola Sarah J. De Groot, Duncan S. Bell, Tom Kerrins-Torres 2009-7-22 6229 San Bernardino San Bernardino Mountains, west ridge of Sugarloaf Mountain 2748 Comment
  UCR240729  Lactuca serriola George K. Helmkamp, E. A. Helmkamp 2012-10-5 19963 Amador Northern Sierra Nevada Mountains Foothills, city of Sutter Creek along old CA-49 (Hanford St.) at the junction with Spanish St. 389 Comment
  UCR241994  Lactuca serriola George K. Helmkamp, E. A. Helmkamp 2012-9-7 19769 Amador Northern Sierra Nevada Mountains Foothills, along CA-49, 1.2 miles north of the junction with Fiddletown Road at Plymouth 299 Comment
  UCR245001  Lactuca serriola Jon P. Rebman, Victoria Marshall, Tom Barckley 2012-6-26 24994 San Diego Peninsular Range, Cleveland National Forest, vicinity of Buckman Springs, NE of Morena Reservoir, southeast of Morena Stokes Valley/Corral Canyon Road and west of Buckman Springs Road, along streambed. Square: S22 930 Comment
  UCR248451  Lactuca serriola Duncan S. Bell, Joella Adkins 2012-7-25 3889 San Bernardino Transverse Ranges; San Bernardino Mountains, San Bernardino National Forest, along Forest Service Road 2N06Y above the community of Fawnskin, just behind the water tower on the southeastern slopes of Delamar Mountain 2182 Comment
  UCR248689  Lactuca serriola George K. Helmkamp, Elizabeth Helmkamp 2013-8-14 22227 Alpine Northern Sierra Nevada Mountains, Ebbets Pass, along CA-4, 4.8 miles west of its junction with CA-89 1924 Comment
  UCR253078  Lactuca serriola George K. Helmkamp, Elizabeth Helmkamp 2013-7-31 22047 El Dorado Northern Sierra Nevada Mountains, Ice House Road, 3.1 miles north of Ice House Resort, 0.18 mi. north of Jones Fork Power House Rd., 1.2 mi. NW of Ice House Reservoir 1537 Comment
  UCR253802  Lactuca serriola George K. Helmkamp, Elizabeth Helmkamp 2012-10-30 20097 Placer Sacramento Valley, South Dowd Road, 0.1 mile south of its junction with Moore Road, southwest of Lincoln 34 Comment
  UCR254779  Lactuca serriola Peter Rubtzoff 1972-10-19 7039 El Dorado Sierra Nevada Mtns, U.C. Blodgett Forest Research Station, clearcut on Main Line Road 1326 Comment
  UCR256303  Lactuca serriola Peter Rubtzoff 1975-9-11 8379 San Mateo San Bruno Mountains, 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction 213 Comment
  UCR257637  Lactuca serriola George K. Helmkamp, Elizabeth Helmkamp 2012-10-13 20021 Placer Sacramento Valley, Granite Bay, Folsom Lake; Park Road 1.8 miles north of the east end of Douglas Blvd. 146 Comment
  UCR257785  Lactuca serriola George K. Helmkamp, Ann Kerchner, Amy Barnes 2012-7-23 19510 Sierra Northern Sierra Nevada Mountains, Stampede Dam Road, 1.7 miles north of the Nevada County line, just east of Stampede Reservoir 1770 Comment
  UCR258186  Lactuca serriola George K. Helmkamp, Elizabeth Helmkamp 2012-10-16 20027 Nevada Sierra Nevada Mountains Foothills, Robles Dr., south of the junction of Combie Road and Darkhorse Drive, 2.8 air miles SE (124 deg. ) of Higgins Corner 445 Comment
  UCR258375  Lactuca serriola George K. Helmkamp, Amy Barnes 2014-8-11 22986 El Dorado Northern Sierra Nevada Mountains, Ice House Road, 1.7 miles south of Crystal Basin Information Station 1610 Comment
  UCR258495  Lactuca serriola R. G. Swinney 2010-6-23 13316 Los Angeles San Gabriel Mountains/Verdugo Mountains, Big Tujunga Ponds (Wildlife Sanctuary) Natural Area, c. 200 meters west of I-210 Fwy., at the far east end of the Hansen Dam Basin 341 Comment
  UCR258590  Lactuca serriola R. G. Swinney 2010-8-11 13515 Los Angeles San Gabriel Mountains, Big Santa Anita Canyon, 100-200 m below Chantry Flats on Chantry Flat Trail/Rd. 598 Comment
  UCR263029  Lactuca serriola Mitch Provance, Callen Huff 2009-6-24 10972 Kern Tehachapi Mountains Foothills, Tejon Ranch, 4.7 miles NNE of Quail Lake, 0.3 miles NE of South Portal No. 4 of Los Alamos Creek and the Tehachapi Afterbay 984 Comment
  UCR264502  Lactuca serriola Duncan S. Bell, Sarah J. De Groot, Cheryl Sevilla 2014-7-9 7351 San Bernardino San Bernardino Mountains, San Bernardino National Forest, Bighorn Mountains. Arrastre Creek in narrow section down stream from Horsethief Flat, near old dam area 1415 Comment
  UCR273885  Lactuca serriola Steven A. Junak, Dave Rosen 2001-7-16 MA- 426 Ventura California Islands, Anacapa Islands. Just west of West Knife Ridge, near top of north bluffs 79 Comment
  UCR279077  Lactuca serriola A. C. Sanders, Jim Malusa 2017-3-10 42781 Imperial Sonoran (Colorado) Desert, Chocolate Mountains, Mammoth Wash near Hayden Well 284 Comment
  UCR279388  Lactuca serriola A. C. Sanders, Jim Malusa 2017-3-24 42982 Riverside Sonoran (Colorado) Desert, northern end of Chocolate Mountains, in canyon draining south toward Iris Wash, c. 3.5 km ESE of Iris Pass 701 Comment
  UCR279519  Lactuca serriola A. C. Sanders, Jim Malusa 2017-3-27 43119 Riverside Sonoran (Colorado) Desert, Chocolate Mountains, canyon 12 km NE (46 deg. ) of Bombay Beach, on both sides of the Imperial County line 305 Comment
  UCR34505  Lactuca serriola A. C. Sanders, N. M. Fellows 1983-10-12 4015 San Bernardino Mojave Desert/ Little San Bernardino Mtns., Big Morongo Preserve of the Nature Conservancy in Big Morongo Canyon, south of town of Morongo Valley 795 Comment
  UCR45212  Lactuca serriola A. C. Sanders 1986-9-12 6939 Kern San Joaquin Valley, Twisselman Road at Interstate Hwy 5, 4.9 mi south of Kings County line 67 Comment
  UCR4708  Lactuca serriola R. A. Anderson 1964-10-4 42 Santa Clara Idylwild Road, 0.25 mi. from State Hwy 17 [W of S end of Lexington Reservoir] 92 Comment
  UCR48966  Lactuca serriola A. C. Sanders 1987-9-18 7360 Los Angeles Pacific coast, El Segundo Dunes, west of Los Angeles International Airport, between Pershing Drive and Vista Del Mar Blvd. 38 Comment
  UCR58474  Lactuca serriola George K. Helmkamp 1989-8-1 s.n. Mono Eastern Sierra Nevada Mountains, US Hwy 395, just south of the summit of Devil's Gate Pass 2256 Comment
  UCR74528  Lactuca serriola Scott D. White 1992-7-22 548 San Bernardino San Bernardino Mtns, City of Big Bear Lake, c. 1 mi east of Eagle Point on the lake, NW of Sandalwood Rd, east of old sewage ponds & west of Rathbone Creek 2073 Comment
  UCR75131  Lactuca serriola Scott D. White 1992-7-24 587 B San Bernardino San Bernardino Mtns., City of Big Bear Lake, SE corner of intersection of Fox Farm Road & Garstin Road 2073 Comment
  UCR76030  Lactuca serriola John Wear, N. Moorhatch 1992-9-17 92- 64 San Bernardino San Bernardino Mtns., N side of the mtns, Cushenbury Spring, near Lucerne Valley 1254 Comment
  UCR78641  Lactuca serriola Scott D. White 1992-9-1 745 San Bernardino San Bernardino Mtns., N of Hwy 18, west of Metcalf Creek at Metcalf Bay, City of Big Bear Lake 2073 Comment
  UCR88955  Lactuca serriola K. H. Berry 1995-8-26 s.n. Kern North-central Mojave Desert, Desert Tortoise Research Natural Area, NNE of California City, south of Koehn Dry Lake, Munsey Road extension, south side of road. 600 Comment
  UCR88962  Lactuca serriola K. H. Berry 1995-7-15 s.n. Kern North-central Mojave Desert, Desert Tortoise Research Natural Area, NNE of California City 701 Comment
  UCR94926  Lactuca serriola Scott D. White 1996-9-22 4543 Riverside Perris Basin, Perris: Nuevo Road near intersection with Wilson Ave., west of the San Jacinto River crossing. 436 Comment
  UCSB15093  Lactuca serriola Breedlove, Dennis 1961-7-23 Santa Barbara Along the Alamo Pintado Creek from 7-8 miles north of Los Olivos; base of Figueroa Mountain, Birabent Canyon, San Rafael Range 426 Comment
  UCSB25156  Lactuca serriola Philbrick, Ralph 1964-6-19 Santa Barbara Stanton Ranch garden, Santa Cruz Island Comment
  UCSB28347  Lactuca serriola Boyce, Carol 1970-7-6 Santa Barbara Tuckers Grove Park at junction of Cathedral Oaks Rd. and San Antonio Creek Rd. Comment
  UCSB43342  Lactuca serriola Ferren, Wayne 1979-6-11 Santa Barbara Apple Rd., Carpinteria Salt Marsh Comment
  UCSB43360  Lactuca serriola Ferren, Wayne 1979-6-11 Santa Barbara Apple Rd., Carpinteria Salt Marsh Comment
  UCSB44499  Lactuca serriola Reisentz, Paul 1980-8-3 Ventura Mirror Lake, 1/2 mile south of intersection of Hwy. 150 and Hwy. 33, 3 miles SW of Ojai, 12 miles N of Ventura 190 Comment
  UCSB47324  Lactuca serriola Steele, Kelly 1983-6-20 Kern Western San Joaquin Valley, 5 miles due south of the junction of CA Hwy. 46 and CA Hwy. 33, (Blackwell's Corner); (T27S R19E S25) 259 Comment
  UCSB47458  Lactuca serriola Steele, Kelly 1983-6-21 Kern Western San Joaquin Valley, along CA Hwy. 33, 6.0 miles northwest of its junction with Lokern Road, 3.0 miles west of Missouri Triangle; (T28S R21E S32) Comment
  UCSB49876  Lactuca serriola Ferren, Wayne 1983-6-11 Santa Barbara La Purisima Mission State Historic Park. 2 km NE of Lompoc City Limit; along side of Rucker Rd. at turn-out Comment
  UCSB53295  Lactuca serriola Roberts, Dar 1983-7-23 Inyo Fish Slough: desert wetland system 4.5 mi. north of Bishop at the northern end of Owens Valley; study site includes 14 sq. mi. along a 7 mi. drainage axis; Red Willow Dam, 2 miles N of junction of Fish Slough Rd. and Jean Blanc Rd. 1341 Comment
  UCSB53296  Lactuca serriola Roberts, Dar 1983-7-23 Inyo Fish Slough; a desert wetland system 4.5 mi. north of Bishop at the northern end of Owens Valley; study site includes 14 sq. mi. along a 7 mi. drainage axis; Rocked-in-Spring, NE end of slough 1341 Comment
  UCSB53425  Lactuca serriola Magney, David; Burgess, Rick 1986-5-3 Ventura 12 miles N of Ojai, western Transverse Ranges T5N, R23W, S. 1, 2, & 3, Wheeler Springs Quadrangle; between Basins 1C & 2A (middle upper basin) 1432 Comment
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Jul 29 2014
  UCSB56389  Lactuca serriola Pritchett, David 1986-8-19 Santa Barbara Del Sol Vernal Pool Reserve, SE corner El Colegio Rd. and Camino Lindo, Isla Vista 9 Comment
  UCSB68160  Lactuca serriola Kathryn Thomas 1993-5-1 SR- 207 Santa Barbara southern foothills of the San Rafael Range, Sedgwick Reserve - Seep downhill from Transect A 719 Comment
  UCSB69671  Lactuca serriola Theroux, Michael Kern Kern River Channel, Tenneco Inc. property. Near Gosford and White Ln. -Bakersfield. 109 Comment
  YM-YOSE109234  Lactuca serriola Justin Adams 1998-8-24 3063 Mariposa WAWONA ROAD BETWEEN GROUSE CREEK AND AVALANCHE CREEK, YOSEMITE NATIONAL PARK, CALIFORNIA; APPROXIMATELY 1.5 KM S OF GROUSE CREEK; SANDY SOIL ADJACENT TO ROAD; ASSOCIATED SPECIES: BROMUS TECTORUM, LOTUS CRASSIFOLIUS. Comment
  YM-YOSE64302  Lactuca serriola Enid Michael 1926-8-20 354 Mariposa YOSEMITE Comment
  YM-YOSE64303  Lactuca serriola Enid Michael 1927-8-15 404 Mariposa YOSEMITE Comment
  CAS-BOT-BC224926  Lactuca serriola Steven A. Junak; Rick Young 1991-10-9 SC- 2929 Santa Barbara Santa Cruz Island. Saddle at extreme E end of Navy Road 365 Comment
  CAS-BOT-BC340495  Lactuca serriola Roxana Stinchfield 1916-7-11 477 Colusa Sycamore Slough road Comment
  CAS-BOT-BC340496  Lactuca serriola G. L. Stebbins 1977-8-7 77140 El Dorado Camino 914 Comment
  CAS-BOT-BC340499  Lactuca serriola John Thomas Howell 1973-7-25 49986 Merced 3 miles south of Gustine on Hunt Road to Ingomar 30 Comment
  CAS-BOT-BC340500  Lactuca serriola J. H. Thomas 1960-8-29 8838 Napa About 1 mile north of Calistoga along highway number 53 Comment
  CAS-BOT-BC340501  Lactuca serriola John Thomas Howell 1927-7-27 2855 Orange Hills on n. side of Santa Ana Canon [Canyon] 152 Comment
  CAS-BOT-BC340502  Lactuca serriola Carl B. Wolf 1932-7-7 3839 Orange Bryant Ranch, Bixby Ave., south edge of field, 100 ft. W. of Hansen Rd., 100 ft. W. of S.E. corner of N.E. 40 of N.E. of Sect. 34 T4S R11W 48 Comment
  CAS-BOT-BC340505  Lactuca serriola Bellue; Goodwin 1932-7-1 s.n. Sacramento Unspecified Comment
  CAS-BOT-BC340506  Lactuca serriola Bellue; Goodwin 1932-7-1 s.n. Sacramento Unspecified Comment
  CAS-BOT-BC340507  Lactuca serriola John Thomas Howell 1951-8-21 28244 Sierra 5 miles from Calpine on road to Blairsden 1524 Comment
  CAS-BOT-BC340509  Lactuca serriola John Thomas Howell 1960-8-20 36244 Tehama Near Lassen Volcanic National Park. Morgan 1463 Comment
  CAS-BOT-BC340510  Lactuca serriola Eugene Carter 1973-8-30 683 Trinity Salmon-Trinity Alps and vicinity. East Fork of the North Fork Trinity River. In garden at Allbert's Cabin. 3.8 mi. N. of Old Helena 502 Comment
  CAS-BOT-BC340511  Lactuca serriola Margaret Williams; Steven Williams 1974-7-26 74 -L-6 Lassen Near Hallelujah Junction, west of Hwy 395 and south of Hwy 70 1493 Comment
  CAS-BOT-BC340512  Lactuca serriola Javier Penalosa 1961-8-26 2179 Marin Tiburon Peninsula. Tiburon Blvd. 1/2 mi. from U.S. 101 Comment
  CAS-BOT-BC340513  Lactuca serriola G. DeNevers; M. Harding 1981-7-11 1744 Marin 4th and C streets. San Rafael Comment
  CAS-BOT-BC340515  Lactuca serriola Beatrice F. Howitt 1963-7-12 1670 Monterey By side of River Rd. before reaching Mission Soledad on west side of Salinas Valley Comment
  CAS-BOT-BC340516  Lactuca serriola Lise Thomsen 1988-8-23 s.n. Napa 1.8 mi. west of intersection of Hwy 29 & Redwood Rd. Comment
  CAS-BOT-BC340517  Lactuca serriola W. Harnach; N. Harnach 1989-8-7 239 Sierra Sierra Valley. Calpine Ranch (home) 1508 Comment
  CAS-BOT-BC340518  Lactuca serriola John Thomas Howell 1924-10-11 676 Alameda Euclid Avenue, Berkeley Comment
  CAS-BOT-BC340519  Lactuca serriola Cherie L. Wetzel 1969-8-28 1022 Alameda Niles Canyon and Vicinity. Alameda Creek at Mission Blvd. Comment
  CAS-BOT-BC340520  Lactuca serriola Cherie L. Wetzel 1969-7-25 971 Alameda Niles Canyon and Vicinity. Along railroad tracks between Palomares Rd. and the Kaiser Plant abutting Swizzig's property Comment
  CAS-BOT-BC340521  Lactuca serriola Cherie L. Wetzel 1969-10-12 1069 Alameda Niles Canyon and Vicinity. At Williams Ranch Comment
  CAS-BOT-BC340522  Lactuca serriola Cherie L. Wetzel 1969-7-25 975 Alameda Niles Canyon and Vicinity. Along the railroad tracks between Palomares Rd. and the Kaiser Plant abutting Swizzig's property Comment
  CAS-BOT-BC340523  Lactuca serriola Cherie L. Wetzel 1969-10-24 1084 Alameda Niles Canyon and Vicinity. Swizzig's property Comment
  CAS-BOT-BC340524  Lactuca serriola Cherie L. Wetzel 1969-8-28 1018 Alameda Niles Canyon and Vicinity. Alameda Creek at Mission Blvd. Comment
  CAS-BOT-BC340525  Lactuca serriola Cherie L. Wetzel 1969-8-28 1017 Alameda Niles Canyon and Vicinity. Alameda Creek at Mission Blvd. Comment
  CAS-BOT-BC340526  Lactuca serriola Cherie L. Wetzel 1969-7-25 974 Alameda Niles Canyon and Vicinity. Along railroad tracks between Palomares Rd. and the Kaiser Plant abutting Swizzig's property Comment
  CAS-BOT-BC340527  Lactuca serriola John Thomas Howell 1933-5-28 11363 Alameda Strawberry Canyon, Berkeley Hills Comment
  CAS-BOT-BC340528  Lactuca serriola Lowell Ahart 1987-8-3 5843 Butte Along the North Fork of the Feather River, near the Poe Power House, about 2 miles south-east of Jarbo Gap 271 Comment
  CAS-BOT-BC340529  Lactuca serriola Lowell Ahart 1983-9-19 4458 Butte About 1/8 mile south of the Gray Lodge Waterfowl Management Area Headquarters, about 12 miles south-west of Gridley 35 Comment
  CAS-BOT-BC340530  Lactuca serriola Lowell Ahart 1983-9-19 4457 Butte About 1/8 mile south of the Gray Lodge Waterfowl Management Area Headquarters, about 12 miles south-west of Gridley 35 Comment
  CAS-BOT-BC340531  Lactuca serriola Lowell Ahart 1982-9-12 3800 Butte On the banks of North Honcut Creek, Peter Ahart Ranch, about 1 1/4 miles north and 3 miles east of Honcut 50 Comment
  CAS-BOT-BC340532  Lactuca serriola A. A. Heller 1916-9-9 12654 Butte Near Durham Comment
  CAS-BOT-BC340533  Lactuca serriola A. A. Heller 1916-9-9 12654 Butte Near Durham Comment
  CAS-BOT-BC340534  Lactuca serriola John Thomas Howell 1975-6-15 51061 Butte Chico 60 Comment
  CAS-BOT-BC340535  Lactuca serriola John Thomas Howell 1959-9-20 34628 Butte Eastern outskirts of Oroville 60 Comment
  CAS-BOT-BC340536  Lactuca serriola Walter Knight 1978-10-4 3315 Contra Costa Browns Island Comment
  CAS-BOT-BC340537  Lactuca serriola Walter Knight; Irja Knight; J. T. Howell; E. McClintock 1978-9-5 3236 Contra Costa Browns Island Comment
  CAS-BOT-BC340538  Lactuca serriola Walter Knight; Joanne Dean 1978-8-14 3165 Contra Costa Browns Island Comment
  CAS-BOT-BC340539  Lactuca serriola A. D. E. Elmer 1903-7-1 4612 Contra Costa Port Costa Comment
  CAS-BOT-BC340540  Lactuca serriola John Thomas Howell; Gordon H. True 1972-7-29 48918 Contra Costa On Byron Hot Springs Road southeast of Byron Comment
  CAS-BOT-BC340541  Lactuca serriola John Thomas Howell; Gordon H. True 1972-7-29 s.n. Contra Costa On Byron Hot Springs Road southeast of Byron Comment
  CAS-BOT-BC340542  Lactuca serriola R. E. Frenkel 1964-2-5 353 Contra Costa On California Hwy. 21, Market Plaza Center, Alamo 79 Comment
  CAS-BOT-BC340543  Lactuca serriola R. E. Frenkel 1963-8-18 264 Contra Costa On Giant Road, 0.4 mile north of ATSF RR crossing, Richmond 15 Comment
  CAS-BOT-BC340546  Lactuca serriola Jack Rockwell 1969-8-27 69 -0659 Fresno Highway 180 into Cedar Grove, 1 mile east of Boyden Cave Comment
  CAS-BOT-BC340547  Lactuca serriola Ernest C. Twisselmann 1953-7-27 724 Kern Temblor Range and the Western San Joaquin Valley. Buena Vista Slough, 9 miles southeast of Lost Hills Comment
  CAS-BOT-BC340548  Lactuca serriola Ernest C. Twisselmann 1953-7-27 724 Kern Temblor Range and the Western San Joaquin Valley. Buena Vista Slough, 9 miles southeast of Lost Hills Comment
  CAS-BOT-BC340549  Lactuca serriola Ernest C. Twisselmann 1957-7-19 3817 Kern Temblor Range and the Western San Joaquin Valley. Antelope Ranch, Antelope Valley, western Kern County 304 Comment
  CAS-BOT-BC340550  Lactuca serriola Ernest C. Twisselmann 1957-7-19 3817 Kern Temblor Range and the Western San Joaquin Valley. Antelope Ranch, Antelope Valley, western Kern County 304 Comment
  CAS-BOT-BC340551  Lactuca serriola Ernest C. Twisselmann 1954-6-21 1388 Kern Temblor Range and the Western San Joaquin Valley. Antelope Valley: 2 miles southeast of Keck's Corner, western Kern County 304 Comment
  CAS-BOT-BC340552  Lactuca serriola Ernest C. Twisselmann 1971-6-21 17796 Kern South Fork of Kern River, 0.5 mile below the Kernville Highway Bridge 762 Comment
  CAS-BOT-BC340553  Lactuca serriola Ernest C. Twisselmann 1960-9-7 6001 Kern Temblor Range and the Western San Joaquin Valley. Choice Valley, 1 mile north of the Choice Valley School 601 Comment
  CAS-BOT-BC340554  Lactuca serriola Ernest C. Twisselmann 1960-9-7 6001 Kern Temblor Range and the Western San Joaquin Valley. Choice Valley: 1 mile north of the Choice Valley School 601 Comment
  CAS-BOT-BC340555  Lactuca serriola Clare B. Hardham 1956-10-1 1420 San Luis Obispo Santa Lucia Mountains. Paradise Valley Comment
  CAS-BOT-BC340556  Lactuca serriola Ernest C. Twisselmann 1966-9-8 12794 Kern Tehachapi Mountains. South shore of Castaic Lake 1051 Comment
  CAS-BOT-BC340557  Lactuca serriola Ernest C. Twisselmann 1966-9-8 12794 Kern Tehachapi Mountains. South shore of Castaic Lake 1051 Comment
  CAS-BOT-BC340558  Lactuca serriola Ernest C. Twisselmann 1961-7-27 6464 Kern Kern River, 0.5 mile below Kernville 803 Comment
  CAS-BOT-BC340559  Lactuca serriola Ernest C. Twisselmann; Eben McMillan; Liberto R. Nathan; Robert Burkhart 1971-9-3 18459 Tulare Sierra Nevada, Kern Plateau. Burkhart's Pack Station at the northwest end of Troy Meadow 2340 Comment
  CAS-BOT-BC340560  Lactuca serriola Noraine Meng 1966-7-29 344 Kern Naval Ordnance Test Station, China Lake 609 Comment
  CAS-BOT-BC340561  Lactuca serriola John Thomas Howell 1962-5-21 37198 Kern Northeast of Lake Isabella 792 Comment
  CAS-BOT-BC340562  Lactuca serriola John Thomas Howell 1976-5-16 51636 Kern Delano 97 Comment
  CAS-BOT-BC340564  Lactuca serriola Ernest C. Twisselmann 1966-4-26 12010 Kern Mojave Desert, Mojave-Randsburg Region. East base of Galileo Hill 975 Comment
  CAS-BOT-BC340565  Lactuca serriola Ernest C. Twisselmann 1966-4-26 12010 Kern Mojave Desert, Mojave-Randsburg Region. East base of Galileo Hill 975 Comment
  CAS-BOT-BC340566  Lactuca serriola Ernest C. Twisselmann 1955-7-13 2249 Kern Temblor Range and the Western San Joaquin Valley. Duck Club Road, 4 1/2 miles north of Semitropic School 62 Comment
  CAS-BOT-BC340567  Lactuca serriola Ernest C. Twisselmann 1955-7-13 2249 Kern Temblor Range and the Western San Joaquin Valley. Duck Club Road, 4 1/2 miles north of Semitropic School 62 Comment
  CAS-BOT-BC340568  Lactuca serriola Ernest C. Twisselmann 1964-9-29 10263 Kern San Joaquin Valley, Kern National Wildlife Refuge 76 Comment
  CAS-BOT-BC340569  Lactuca serriola Ernest C. Twisselmann 1964-9-29 10263 Kern San Joaquin Valley, Kern National Wildlife Refuge 76 Comment
  CAS-BOT-BC340570  Lactuca serriola Ernest C. Twisselmann 1954-7-20 1445 Kern Temblor Range and the Western San Joaquin Valley. Buena Vista Slough at Highway US466 Bridge, 3 miles east of Lost Hills 73 Comment
  CAS-BOT-BC340571  Lactuca serriola Ernest C. Twisselmann 1954-7-20 1445 Kern Temblor Range and the Western San Joaquin Valley. Buena Vista Slough at Highway US466 Bridge, 3 miles east of Lost Hills 73 Comment
  CAS-BOT-BC340572  Lactuca serriola Ernest C. Twisselmann 1964-5-7 9376 Kern Mojave Desert, Mojave-Randsburg Region. Sand dunes at the south end of Rogers Lake, Edwards Air Force Base 609 Comment
  CAS-BOT-BC340573  Lactuca serriola Ernest C. Twisselmann 1964-5-7 9376 Kern Mojave Desert, Mojave-Randsburg Region. Sand dunes at the south end of Rogers Lake, Edwards Air Force Base 609 Comment
  CAS-BOT-BC340574  Lactuca serriola Ernest C. Twisselmann; Eben McMillan 1968-7-16 14583 Kern Sierra Nevada, Kern Plateau. Ridge between Little Cannell Meadow and Fay Creek 2316 Comment
  CAS-BOT-BC340578  Lactuca serriola C. W. Tilforth 1969-8-10 234 Los Angeles Whittier Comment
  CAS-BOT-BC340580  Lactuca serriola Peter H. Raven; Henry J. Thompson 1959-9-18 14428 Los Angeles Santa Monica Mountains (Lat. N. 34 deg. ; Long. 118 deg. to 119 deg. W.). Santa Monica Boulevard near Beverly Glen Boulevard, West Los Angeles 76 Comment
  CAS-BOT-BC340583  Lactuca serriola Gladys L. Smith 1983-9-6 8294 Mendocino Old Anderson Valley Rd. (parallels Rte. 128), west of Boonville Comment
  CAS-BOT-BC340584  Lactuca serriola Gladys L. Smith 1981-6-13 6676 Mendocino At Rest Stop on Hwy. 101, 3.2 km. S. of Leggett Comment
  CAS-BOT-BC340585  Lactuca serriola Gladys L. Smith; Clare R. Wheeler 1980-6-19 6071 Mendocino Ca. 6 miles (9.7 km.) W. of Mendocino Pass 1158 Comment
  CAS-BOT-BC340586  Lactuca serriola Gladys L. Smith; Charles H. Smith 1983-8-4 8229 Mendocino On roadbank overlooking Lake Pillsbury, along USFS 20N01 enroute to Hull Mt. Comment
  CAS-BOT-BC340587  Lactuca serriola John Thomas Howell; T. C. Fuller; G. D. Barbe No date on label 54608 Mono Bridgeport 1970 Comment
  CAS-BOT-BC340588  Lactuca serriola Roxana S. Ferris; W. R. Ernst 1957-9-15 13115 Mono Along Green Creek, junction of U. S. Highway 395 & Green Lake road, 5 mi. S of Bridgeport Comment
  CAS-BOT-BC340589  Lactuca serriola Roxana S. Ferris; W. R. Ernst 1957-9-15 13115 Mono Along Green Creek, junction of U. S. Highway 395 & Green Lake road, 5 mi. S of Bridgeport Comment
  CAS-BOT-BC340591  Lactuca serriola Gordon H. True 1969-9-23 5126 Nevada Dry Creek, 2 mi. SE of Spenceville (site) 198 Comment
  CAS-BOT-BC340592  Lactuca serriola Gordon H. True; John Thomas Howell 1971-6-30 6718 Nevada At Mill & Empire Streets, Grass Valley 716 Comment
  CAS-BOT-BC340593  Lactuca serriola Lillian Mott 1969-7-26 LM 6929 Nevada Brunswick Rd., just east of Grass Valley 762 Comment
  CAS-BOT-BC340595  Lactuca serriola Lowell Ahart 1981-9-6 3076 Plumas 1 1/2 miles SW of Crescent Mills 1200 Comment
  CAS-BOT-BC340596  Lactuca serriola G. Sommers 1976-8-12 227 Plumas Sierra Valley. Along Marble Lane 1487 Comment
  CAS-BOT-BC340597  Lactuca serriola Walter Knight; Irja Knight; John Thomas Howell 1966-7-28 1521 Plumas Butterfly Botanical Area and Vicinity. Area adjacent to Pond Reservoir 1097 Comment
  CAS-BOT-BC340598  Lactuca serriola John Thomas Howell 1959-9-22 34838 Plumas Wolf Creek 1371 Comment
  CAS-BOT-BC340599  Lactuca serriola John Thomas Howell 1955-7-19 30741 Plumas Beckwourth 1493 Comment
  CAS-BOT-BC340600  Lactuca serriola John Thomas Howell 1960-7-18 35605 Plumas Lassen Volcanic National Park. Drakesbad 1828 Comment
  CAS-BOT-BC340601  Lactuca serriola John Thomas Howell 1961-9-22 36813 Plumas Greenville 1088 Comment
  CAS-BOT-BC340602  Lactuca serriola Rimo Bacigalupi; Lawrence R. Heckard 1951-8-8 3480 Plumas Just east of Westwood 1554 Comment
  CAS-BOT-BC340603  Lactuca serriola E. K. Balls 1950-8-31 15518 Plumas Hwy. 24, 1 mile north of Spanish Creek, north of Quincy 1097 Comment
  CAS-BOT-BC340604  Lactuca serriola John H. Thomas 1959-8-27 8124 Santa Cruz Near intersection of Main Street and Southern Circle Comment
  CAS-BOT-BC340610  Lactuca serriola Wm. Bridge Cooke 1939-8-4 13798 Siskiyou Mount Shasta. Along the Sisson Southern Trail Comment
  CAS-BOT-BC340611  Lactuca serriola R. E. Frenkel 1964-10-2 872 Siskiyou On north-east side of Everitt Memorial Highway near Mount Shasta 1615 Comment
  CAS-BOT-BC340612  Lactuca serriola Lewis S. Rose 1926-7-29 s.n. Siskiyou Shasta Springs Comment
  CAS-BOT-BC340613  Lactuca serriola Lewis S. Rose 1925-7-29 s.n. Siskiyou Shasta Springs Comment
  CAS-BOT-BC340621  Lactuca serriola John Thomas Howell 1956-8-19 31779 San Francisco San Francisco. Waterfront St. near Mission Rock Terminal Comment
  CAS-BOT-BC340622  Lactuca serriola John Thomas Howell 1956-8-19 31775 San Francisco San Francisco. Waterfront St. near Mission Rock Terminal Comment
  CAS-BOT-BC340623  Lactuca serriola John Thomas Howell 1957-6-17 32673 San Francisco San Francisco. Lone Mt. Comment
  CAS-BOT-BC340624  Lactuca serriola John Thomas Howell 1956-7-15 31684 San Francisco San Francisco. Waterfront St. near Mission Rock Terminal Comment
  CAS-BOT-BC340625  Lactuca serriola John Thomas Howell 1956-7-1 31667 San Francisco Hunters Pt., San Francisco Comment
  CAS-BOT-BC340627  Lactuca serriola T. Winfield 1974-8-28 1177 San Luis Obispo Morro Bay; near PG&E Power Plant Comment
  CAS-BOT-BC340628  Lactuca serriola Ernest C. Twisselmann 1967-9-8 13670 San Luis Obispo Temblor Range and the Western San Joaquin Valley. T. Franklin Twisselmann residence, Choice Valley 640 Comment
  CAS-BOT-BC340629  Lactuca serriola Ernest C. Twisselmann 1954-8-19 1512 San Luis Obispo Temblor Range and the Western San Joaquin Valley. Summit of Palo Prieta Canyon, 7 miles south of Cholame 624 Comment
  CAS-BOT-BC340630  Lactuca serriola Ernest C. Twisselmann 1954-8-19 1512 San Luis Obispo Temblor Range and the Western San Joaquin Valley. Summit of Palo Prieta Canyon, 7 miles south of Cholame (across from Twisselmann mail box) 624 Comment
  CAS-BOT-BC340631  Lactuca serriola Ernest C. Twisselmann 1958-8-27 4740 San Luis Obispo Temblor Range and the Western San Joaquin Valley. Bitterwater Road at Grant's Lake, eastern San Luis Obispo County 609 Comment
  CAS-BOT-BC340632  Lactuca serriola Ernest C. Twisselmann 1958-8-27 4740 San Luis Obispo Temblor Range and the Western San Joaquin Valley. Bitterwater Road at Grant's Lake, eastern San Luis Obispo County 609 Comment
  CAS-BOT-BC340633  Lactuca serriola R. F. Hoover 1969-8-15 11543 San Luis Obispo San Luis Obispo: Santa Rosa St. near Foothill Blvd. Comment
  CAS-BOT-BC340635  Lactuca serriola Peter H. Raven 1964-3-25 18749 San Luis Obispo Above and east of Cambria Comment
  CAS-BOT-BC340637  Lactuca serriola James McMurphy 1905-10-1 s.n. San Mateo Corte de Madera Creek Comment
  CAS-BOT-BC340638  Lactuca serriola Ned Cahill 1974-8-26 366 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC340639  Lactuca serriola Ned Cahill 1974-5-13 276 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC340640  Lactuca serriola Henry M. Pollard 1958-8-15 s.n. Santa Barbara Fairview Road between Goleta and drainage canal bridge Comment
  CAS-BOT-BC340641  Lactuca serriola Henry M. Pollard 1958-8-15 s.n. Santa Barbara Fairview Road between Goleta and drainage canal bridge Comment
  CAS-BOT-BC340642  Lactuca serriola Henry M. Pollard 1957-7-24 s.n. Santa Barbara So. Pac. R. R. near Oak Park, Santa Barbara Comment
  CAS-BOT-BC340643  Lactuca serriola Henry M. Pollard 1958-8-15 s.n. Santa Barbara Fairview Road between Goleta and drainage canal bridge Comment
  CAS-BOT-BC340644  Lactuca serriola Henry M. Pollard 1957-7-24 s.n. Santa Barbara So. Pac. R. R. near Oak Park, Santa Barbara Comment
  CAS-BOT-BC340645  Lactuca serriola W. R. Dudley 1908-11-11 s.n. Santa Clara Santa Cruz Mountain Peninsula. Stanford University Comment
  CAS-BOT-BC340646  Lactuca serriola Josephine D. Randall 1907-9-28 s.n. Santa Clara Santa Cruz Peninsula. Near bay, Palo Alto Comment
  CAS-BOT-BC340648  Lactuca serriola Josephine D. Randall 1907-7-6 86 Santa Clara Santa Cruz Peninsula. Near San Antonio Creek Comment
  CAS-BOT-BC340649  Lactuca serriola Ira L. Wiggins 1928-8-19 3311 Santa Clara Junction of Los Trancos and San Francisquito Creeks near Stanford University campus Comment
  CAS-BOT-BC340650  Lactuca serriola J. H. Thomas 1964-10-18 10516 Santa Clara 838 Cedro Way, Stanford Comment
  CAS-BOT-BC340654  Lactuca serriola John H. Thomas 1958-8-16 7427 Santa Clara Stanford University Campus. Front of Encina Hall Comment
  CAS-BOT-BC340655  Lactuca serriola Robert Martineau 1974-8-30 399 Santa Clara Foothills Park, City of Palo Alto. Foothills of the eastern side of the Santa Cruz Mountains. Five miles south of center of Palo Alto. Los Trancos Trail 548 Comment
  CAS-BOT-BC340656  Lactuca serriola Walter Knight; Irja Knight 1963-10-6 493 Sonoma On Skillman Lane, Petaluma Comment
  CAS-BOT-BC340657  Lactuca serriola Walter Knight; Irja Knight 1963-10-6 489 Sonoma Skillman Lane, Petaluma Comment
  CAS-BOT-BC340658  Lactuca serriola Mary P. Wells 1985-8-6 590 Sonoma Bed of Ducker Creek, Rincon Valley, Santa Rosa Comment
  CAS-BOT-BC340659  Lactuca serriola Mary P. Wells 1985-8-12 593 Sonoma Bed of Ducker Creek, Rincon Valley, Santa Rosa Comment
  CAS-BOT-BC340660  Lactuca serriola Mary P. Wells 1985-9-2 611 Sonoma Bed of Ducker Creek, Rincon Valley, Santa Rosa Comment
  CAS-BOT-BC340661  Lactuca serriola Mary P. Wells 1985-9-2 611 Sonoma Bed of Ducker Creek, Rincon Valley, Santa Rosa Comment
  CAS-BOT-BC340662  Lactuca serriola Lowell Ahart 1981-7-3 2888 Sutter South side of South Butte, Sutter Buttes 100 Comment
  CAS-BOT-BC340663  Lactuca serriola Lowell Ahart 1981-9-10 3139 Sutter South Butte, Sutter Buttes 250 Comment
  CAS-BOT-BC340664  Lactuca serriola Lowell Ahart 1982-9-9 3782 Sutter About 1/2 mile south of the Myers home, Myers Ranch, Sutter Buttes 50 Comment
  CAS-BOT-BC340665  Lactuca serriola Lowell Ahart 1983-8-27 4351 Sutter A little south of the Myers Ranch, about 1 mile south of the Myers home, Sutter Buttes 50 Comment
  CAS-BOT-BC340667  Lactuca serriola Ernest C. Twisselmann 1969-8-1 15825 Tulare Sierra Nevada, Kern Plateau. Summit of Chimney Peak 2435 Comment
  CAS-BOT-BC340668  Lactuca serriola Ernest C. Twisselmann 1967-5-31 13226 Tulare Sierra Nevada, Kern Plateau. Dry Creek just above the Cherry Hill Road 1325 Comment
  CAS-BOT-BC340669  Lactuca serriola Ernest C. Twisselmann; Donald J. Bedell 1967-10-14 13953 Tulare Sierra Nevada, Kern Plateau. Dry Creek at Cherry Hill Road 1211 Comment
  CAS-BOT-BC340671  Lactuca serriola John Thomas Howell 1967-11-3 44044 Tulare About 4.5 miles east-northeast of Pixley 83 Comment
  CAS-BOT-BC340673  Lactuca serriola John Thomas Howell; Gordon H. True 1967-7-6 43203 Tulare On Road 160 at NW corner. About 4 1/2 miles east-northeast of Pixley 83 Comment
  CAS-BOT-BC340674  Lactuca serriola John Thomas Howell; Gordon H. True 1967-9-21 43965 Tulare About 4 1/2 miles east-northeast of Pixley 83 Comment
  CAS-BOT-BC340675  Lactuca serriola John Thomas Howell; Gordon H. True 1967-9-21 43966 Tulare About 4 1/2 miles east-northeast of Pixley 83 Comment
  CAS-BOT-BC340676  Lactuca serriola John Thomas Howell; Gordon H. True 1967-7-6 43202 Tulare On Road 160, about 4.5 miles east-northeast of Pixley 83 Comment
  CAS-BOT-BC340677  Lactuca serriola John Thomas Howell; Gordon H. True 1967-7-6 43202 Tulare On Road 160 at NW corner. About 4 1/2 miles east-northeast of Pixley 83 Comment
  CAS-BOT-BC340678  Lactuca serriola John Thomas Howell; Gordon H. True 1967-5-31 42525 Tulare About 4 1/2 miles east-northeast of Pixley. Near E boundary of area 83 Comment
  CAS-BOT-BC340679  Lactuca serriola John Thomas Howell; Gordon H. True 1967-7-6 43203 Tulare On Road 160, about 4.5 miles east-northeast of Pixley. Near E boundary of area 83 Comment
  CAS-BOT-BC340682  Lactuca serriola Ira L. Wiggins 1972-9-17 21945 Tuolumne Vacant lot on N side of Post Office, Twain Harte 1127 Comment
  CAS-BOT-BC340683  Lactuca serriola Mrs. W. J. Williamson 1919-7-1 300 Tuolumne Spring Gulch near Bear Creek 335 Comment
  CAS-BOT-BC340684  Lactuca serriola Roxana Stinchfield 1915-8-2 36 Tuolumne Truck garden - Williamson Ranch. Vicinity of Rawhide Comment
  CAS-BOT-BC340694  Lactuca serriola Eben McMillan 1970-8-22 SM 45 Ventura Taft Ranch at the top of Sulphur Mountain, 4 miles southeast of Ojai 822 Comment
  CAS-BOT-BC344860  Lactuca serriola Peter Rubtzoff 1972-10-19 7039 El Dorado U.C. Blodgett Forest Research Station: Clear-cut on Main Line Road. Comment
  CAS-BOT-BC353467  Lactuca serriola Peter Rubtzoff 1975-9-11 8379 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction, San Bruno Mountains. Comment
  CAS-BOT-BC354315  Lactuca serriola Peter Rubtzoff 1972-10-12 7018 El Dorado U.C. Blodgett Forest Research Station: Clear-cut on Main Line Road. Comment
  CDA16256  Lactuca serriola G. F. Hrusa 1997-10-13 14124 Yolo Sacramento Valley; Riparian zone of Sacramento R. immediately S of I-5 ~ 5 mi E of Woodland (near tule canal). 0 Comment
  CDA20064  Lactuca serriola P. Nilles, J. Miller 2002-8-13 PDR P 096789 Glenn Northern California; Roadside in Mendocino N.F. 0 Comment
  CDA31431  Lactuca serriola D. G. Kelch, M. K. Beyers 2010-10-28 10 .438 Sacramento Sacramento: Meadowview Road at the Plant Pest Diagnostics Lab, in parking lot behind building. 0 Comment
  CDA7502  Lactuca serriola T. C. Fuller 1959-10-2 Butte Rice Experiment Station, ca. 3 miles north of Biggs. 0 Comment
  CDA7503  Lactuca serriola G. D. Barbe 1983-8-2 4096 Sacramento 1049 Clinton Road 0 Comment
  CDA7506  Lactuca serriola M. K. Bellue, Goodwin 1932-7-1 Sacramento 0 Comment
  CDA7523  Lactuca serriola M. K. Bellue 1955-3 Sacramento Alley, 9th - 10th, O & P Streets. 0 Comment
  CDA7524  Lactuca serriola Phillipson 1915-6-12 Los Angeles Monrovia. Comment
  CDA8077  Lactuca serriola Mary DeDecker 1973-9-12 3356 Inyo Sierra Nevada; South Fork Oak Creek; Pasture at Bright Ranch. Comment
  HSC26752  Lactuca serriola J. P. Smith, J. O. Sawyer 1971-9-18 4836 Siskiyou 2 mi. W of the junction of Hwy. 3 and Rd. 8, N of Callahan. 1037 Comment
  HSC5888  Lactuca serriola R. C. Wunner 1965-8-14 414 Siskiyou California Lava Beds National Monument; near old shoreline of Tule Lake 1220 Comment
  HSC5895  Lactuca serriola R. C. Wunner 1965-8-14 415 Siskiyou California Lava Beds National Monument; near old shoreline of Tule Lake 1220 Comment
  HSC81715  Lactuca serriola Thomas W. Nelson, Jane P. Nelson 1980-8-22 6284 Shasta Along road to water supply for Basin Creek Campground opposite S unit 823 Comment
  HSC83175  Lactuca serriola Gladys L. Smith, Charles H. Smith 8229 Mendocino On roadbank overlooking Lake Pillsbury, along USFS 20N01 enroute to Hull Mt. Comment
  HSC83244  Lactuca serriola Gladys L. Smith 1983-9-6 8294 Mendocino Old Anderson Valley Rd. (parallels Hwy. 128), W of Boonville Comment
  HSC83248  Lactuca serriola Gladys L. Smith 1981-6-13 6676 Mendocino At rest-stop on Hwy. 101, 3.2 km S of Leggett Comment
  IRVC28945  Lactuca serriola G. K. Helmkamp 2003-9-19 8151 San Luis Obispo Nipomo Mesa area. Pomeroy Rd, 0.2 mi S of Los Berros Rd. Central Coast 76 Comment
  IRVC29229  Lactuca serriola G. K. Helmkamp, E. A. Helmkamp 2004-10-8 8850 San Luis Obispo Biddle Regional Park, 7 mi NE of Arroyo Grande along Lopez Drive and Arroyo Grande Creek Central Coast 136 Comment
  JEPS36685  Lactuca serriola F. W. Peirson 1921-7-20 1488 Los Angeles San Gabriel River San Gabriel Mts., San Gabriel River 457 Comment
  JEPS54359  Lactuca serriola Ernest C. Twisselmann and Donald J. Bedell 1967-10-14 13953 Tulare dry creek at Cherry Hill Road; Sierra Nevada, Kern Plateau 1211 Comment
  JEPS84555  Lactuca serriola John W. Willoughby 1976-9-16 1854 Solano about 0.5 mi w of its junction with I80 freeway along Cherry Glen Road; Vaca Mountains 67 Comment
  JEPS84556  Lactuca serriola John W. Willoughby 1975-8-15 1079 Solano between point 1.0 mi w and mouth of canyon at Pleasants Valley Road (along Mix Canyon Road); Vaca Mountains, Mix Canyon 152 Comment
  LA105099  Lactuca serriola Barry A. Prigge; 1988-7-3 8160 Los Angeles Santa Monica Mountains, ca 0.2 mi E of jtn of Mulholland Hwy and Old Topanga Rd, across hwy from Calabasas High School 313 Comment
  LA201377  Lactuca serriola Arthur C. Gibson; 2001-5-23 4126 Ventura Comment
  LA202102  Lactuca serriola Monte Lloyd; 1950-7-31 500731p- 1715 Los Angeles University of California, Los Angeles, between athletic field and Faculty Hill 114 Comment
  LA32081  Lactuca serriola Peter H. Raven; Henry J. Thompson 1959-9-6 14393 Los Angeles Santa Monica Mountains, Malibu Creek, near mouth 12 Comment
  OBI15972  Lactuca serriola Betty Sheehan 1957-10-11 14 San Luis Obispo Cal Poly campus, Feed mill Comment
  OBI29280  Lactuca serriola David J. Keil 1980-9-15 14183 San Luis Obispo Calf Cyn, 0.25 mi W of intersection of Calif hwy 58 and 229. Comment
  OBI38444  Lactuca serriola Eric Wise 1981-10-23 1350 San Luis Obispo Sinton Sycamore Reservoir on Shell Crk rd 8.9 mi N of hwy 58 Comment
  OBI55446  Lactuca serriola David J. Keil 1992-7-20 23504 Siskiyou Klamath NF. Along Forest Rd 46N64, 2.8 mi W of Scott river rd Comment
  OBI56540  Lactuca serriola David J. Keil 1998-8-19 27984 San Luis Obispo Carrizo Plain, Soda Lake Rd. at Brentwood Trail. Comment
  OBI60716  Lactuca serriola Ann Cochran 1986-7-26 36 San Luis Obispo Area around fire station. t30S, R18E, sec 13. On Soda lake rd at Arrowbear 579 Comment
  OBI64312  Lactuca serriola Margaret Przybylski 2004-4-3 96 Alameda The Oakland Zoo, E of main parking lot in rolling hills 122 Comment
  OBI72487  Lactuca serriola E. L. Painter & M. Wetherwax, M. Wetherwax 2004-9-4 CR- 368 San Luis Obispo Camp Roberts Roadbank of Sulphur Spring Rd UTMs (AND 27) zone 10S, 695757E, 3957207N 263 Comment
  PGM1429  Lactuca serriola Vern Yadon 1975-8-17 Monterey Diablo Range, Slack Canyon Station Nr stream, 11 mi S of Highway 198 below Peachtree Rd Comment
  PGM2866  Lactuca serriola Jim Ziegler 1989-8-15 Monterey Santa Lucia Mountains, Carmel Valley Porter Bowl area, Alvarado Rd Comment
  PGM5418  Lactuca serriola Beatrice F Howitt 1963-7-12 1670 Monterey Salinas Valley, Salinas Valley west side, River Rd along Comment
  PGM7442  Lactuca serriola Vern Yadon 2005-7-10 Monterey Monterey Peninsula, Highway 69 & Hwy 1 interchange near , Growing in divider of Highway 68 Comment
  POM11459  Lactuca serriola R. D. Harwood 1920-8-11 s.n. Los Angeles Claremont. Comment
  POM12240B  Lactuca serriola F. L. Robinson 1921-5-9 72 Los Angeles Claremont. Comment
  POM129170  Lactuca serriola W. J. Williamson 1919-7-1 300 Tuolumne Spring Gulch near Bear Creek 335 Comment
  POM129281  Lactuca serriola W. J. Williamson 1919-6-20 269 Tuolumne French Flat. Comment
  POM15163  Lactuca serriola Mary F. Spencer 1922-09 2033 San Diego Canyon, E San Diego County 61 Comment
  POM181475  Lactuca serriola H. F. Copeland 1923-1 864 Butte Nelson. Comment
  POM188448  Lactuca serriola E. C. Jaeger 1933-9-15 s.n. Inyo 24 miles N of Westgard Pass. 2134 Comment
  POM290107  Lactuca serriola Lyman Benson 1936-10-3 8010 Kern Bakersfield, Kern River. 122 Comment
  POM301452  Lactuca serriola Nathan C. Sweet Jr. 1942-8-7 265 Madera Along road between Oakhurst and Coarsegold. 915 Comment
  POM306345  Lactuca serriola Henry J. Ramsey, Henry J. Ramsey 1937-8-12 1427 Los Angeles Altadena Comment
  POM361386  Lactuca serriola Wm. Martin, Robert Gustafson 1971-7-14 s.n. Los Angeles Normandie and Exposition Blvds., Los Angeles. Comment
  POM361388  Lactuca serriola Robert Gustafson 1980-7-9 1817 Los Angeles Ballona Wetlands, Area 3. Comment
  POM361389  Lactuca serriola Wm. Martin, B. Gustafson 1971-7-14 s.n. Los Angeles Corner of Jefferson and Rodeo Blvd., Los Angeles. Comment
  POM361391  Lactuca serriola Wm. Martin 1971-9-10 20219 Placer 1 mile E of Weimar on Hwy 80 Comment
  POM361393  Lactuca serriola Freda Detmers 1931-7-15 s.n. Orange San Bernardino Mts, One ridge along Pine of the World Drive Comment
  POM6211  Lactuca serriola D. L. Crawford 1915-7-15 s.n. Los Angeles Claremont. Comment
  RSA0092800  Lactuca serriola Steven A. Junak 1998-9-25 SC- 4280 Santa Barbara Santa Cruz Island. In Hazard's Canyon, just upstream from fork in canyon, w/side canyon entering from W side, along big trail. 122 Comment
  RSA0105598  Lactuca serriola Steven A. Junak, David Rosen 2001-7-16 MA- 426 Ventura Anacapa Island. Ridgetop, just W of W knife ridge, near top of N bluffs. 79 Comment
  RSA0105853  Lactuca serriola Alan Romspert 2000-7-28 s.n. Riverside Santa Ana Riverbed between Riverside Ave & Market St. Bridge. Comment
  RSA0115285  Lactuca serriola Steven A. Junak 2002-7-10 SC- 4444 Santa Barbara Santa Cruz Island. Central Valley, just N of Lyndal's house, just W of field station. 70 Comment
  RSA116802  Lactuca serriola M. E. Clark 1909-10-9 s.n. Santa Clara End of Embarcadero Road. Comment
  RSA118798  Lactuca serriola S. Carlquist 1958-8-30 617 Los Angeles Weed in field, Foothill Blvd at W City limits of Claremont. Comment
  RSA121775  Lactuca serriola A. D. Gifford 1937-9-19 850 Mono Negit Island, Mono Lake. 1982 Comment
  RSA12634  Lactuca serriola C. B. Wolf 1934-8-16 6065 Orange Bryant Ranch E of Long Beach, Bixby Ave 100 ft and E of SW corner NW/4 NE/4, S31. 6 Comment
  RSA12674  Lactuca serriola C. B. Wolf 1934-8-16 6065 Orange Bryant Ranch E of Long Beach, Bixby Ave 100 ft and E of SW corner NW/4 NE/4, S31. 6 Comment
  RSA128597  Lactuca serriola Peter H. Raven 1950-7-11 2509 Santa Clara On highway, Gilroy. Comment
  RSA170207  Lactuca serriola Joseph P. Tracy 1949-8-8 18402 Humboldt Frank Graham's orchard; Trinity River Valley, at Willow Creek. 152 Comment
  RSA176664  Lactuca serriola Peter H. Raven 1964-3-25 18749 San Luis Obispo Above and E of Cambria. Comment
  RSA177071  Lactuca serriola John H. Thomas 1964-10-18 10516 Santa Clara 838 Cedro Way, Stanford. Comment
  RSA195506  Lactuca serriola John H. Thomas 1958-8-16 7427 Santa Clara Stanford University, in lawn in front of Encina Hall Comment
  RSA202795  Lactuca serriola H. M. Pollard 1959-9-26 s.n. Santa Barbara Southern Pacific Railroad, Carpenteria. Comment
  RSA219995  Lactuca serriola J. T. Howell 1956-8-19 31775 San Francisco Waterfront St. near Mission Rock Terminal, San Francisco. Comment
  RSA219997  Lactuca serriola J. T. Howell 1956-7-15 31684 San Francisco Waterfront Street, near Mission Rock Terminal, San Francisco. Comment
  RSA220498  Lactuca serriola Cherie L. Wetzel 1969-8-28 1018 Alameda Alameda Creek at Mission Blvd.; Niles Canyon and Vicinity. Comment
  RSA223949  Lactuca serriola Cherie L. Wetzel 1969-8-28 1017 Alameda Alameda Creek at Mission Blvd.; Niles Canyon and Vicinity. Comment
  RSA226090  Lactuca serriola R. F. Thorne, C. W. Tilforth 1971-6-17 39914 Los Angeles Near small pond in canyon below Placerita Canyon road 2.6 mile below junction with Sand Canyon road; W end San Gabriel Mts. 549 Comment
  RSA2357  Lactuca serriola J. W. Blankinship 1928-7-3 s.n. Lake Kelseyville Comment
  RSA250523  Lactuca serriola R. F. Thorne, John Dourley 1967-10-10 37333 Los Angeles Angeles National Forest: Jackson Lake, W end of lake. 1867 Comment
  RSA258372  Lactuca serriola C. W. Tilforth 1972-7-27 608 Los Angeles [Unspecified] Comment
  RSA290105  Lactuca serriola Lyman Benson 1933-8-15 5685 Lake Kelseyville; Mt. Range: Middle N. Coast; Watershed: Clear Lake. 457 Comment
  RSA354284  Lactuca serriola Gladys L. Smith, C. Smith 1983-8-4 8229 Mendocino Roadbank overlooking Lake Pillsbury, along USFS 20N01 enroute to Hull Mt. Comment
  RSA354288  Lactuca serriola Gladys L. Smith 1981-7-23 6991 Mendocino S State Street, Ukiah, between Motel 6 and truck sales lot. 191 Comment
  RSA485140  Lactuca serriola James D. Morefield 1988-8-4 4864 a Inyo White Mtns: along stream in Silver Canyon just above the narrows, 4.3 miles N86E of Laws. Owens Valley drainage 1707 Comment
  RSA516247  Lactuca serriola Steven A. Junak 1985-8-24 1106 Santa Barbara Santa Cruz Island. Canada del Puerto, about 0.25 miles downstream from Stanton Ranch. Rare along creek. 61 Comment
  RSA533896  Lactuca serriola Timothy S. Ross, Orlando Mistretta, Mike Hammitt 1991-5-17 5144 Los Angeles San Clemente Island, at the beginning of Larkspur Canyon drainage. 1600 ft. SE of the 924' BM at the E end of old airfield landing strip. 250 Comment
  RSA550702  Lactuca serriola Timothy S. Ross, Annette Ross 1991-7-29 5701 Los Angeles Elephant Hill, N most point of the Puente Hills, W Pomona. 229 Comment
  RSA562652  Lactuca serriola D. Charlton, L. Heide 1991-9-19 5599 Kern Piute Ponds, Edwards AFB, north side outflow 701 Comment
  RSA586666  Lactuca serriola Orlando Mistretta 1995-6-1 1762 Los Angeles San Gabriel Mountains. Carr Canyon. 1021 Comment
  RSA59114  Lactuca serriola E. K. Balls 1950-8-31 15518 Plumas Hwy 24, 1 mile north of Spanish Creek, just north of Quincy. 1098 Comment
  RSA591180  Lactuca serriola Steven A. Junak 1981-7-30 SCI 33 Los Angeles San Clemente Island: Central portion of island, just S of Old Airfield. 262 Comment
  RSA5937  Lactuca serriola C. B. Wolf 1932-7-7 3839 Orange Bryant Ranch, along drainage ditch on Bixby Ave.; 100 ft. W. of Hansen Rd.; 100 ft W of corner of NE 1/4 9 Comment
  RSA596115  Lactuca serriola D. L. Banks 1996-11-7 1198 Riverside NW Palomar Mountains; Agua Tibia Mountains; Pechanga Indian Reservation, E of San Gabriel Church; At the end of the main road in the Reservation, at the spring on the northern fork of Pechanga Creek at the E end of the Reservation. 494 Comment
  RSA596275  Lactuca serriola R. G. Swinney 1989-6-30 s.n. Los Angeles Big Dalton Canyon, in and near Glendora Wilderness Park, 0.9 mi. E of Glendora Mtn. Rd. 420 Comment
  RSA596730  Lactuca serriola L. C. Wheeler 1966-9-5 8852 Inyo White Mountains. Toll House Spring, Westgard Road. Comment
  RSA597059  Lactuca serriola D. L. Banks, Lauren Raz 1996-11-5 1158 Riverside NW Palomar Mountains; Agua Tibia Mountains; Pechanga Indian Reservation, S of San Gabriel Church; Along a newly established firebreak along a NW-SE running ridgeline, near the water tank. 402 Comment
  RSA5981  Lactuca serriola C. B. Wolf 1932-9-13 4054 Los Angeles Bryant Ranch, 250 ft. S of N boundary & 100 ft. E of drainage ditch in SE 1/4 sect. 27 about 560 ft. east and 250 ft. S of NW corner of SE 1/4 sect. 27. 5 Comment
  RSA601553  Lactuca serriola L. C. Wheeler 1967-6-26 9909 Los Angeles San Gabriel Mountains : Placerita Canyon; ca. 1/4 mile E of highway 457 Comment
  RSA602808  Lactuca serriola L. C. Wheeler 1967-7-13 9955 San Bernardino San Gabriel Mountains: Lytle Creek Village, Lytle Creek. 1067 Comment
  RSA603022  Lactuca serriola L. C. Wheeler 1967-7-13 9956 San Bernardino San Gabriel Mountains: Lytle Creek Village, Lytle Creek. 1067 Comment
  RSA604301  Lactuca serriola L. C. Wheeler 1967-9-17 s.n. Los Angeles San Gabriel Mountains: Foot of Holiday Hill Ski Lift. 1997 Comment
  RSA609980  Lactuca serriola L. C. Wheeler 1970-6-27 s.n. Los Angeles San Gabriel Mountains: Prairie Fork, 1/2 mile east of Mine Gulch Camp. 1418 Comment
  RSA612026  Lactuca serriola Steven A. Junak, Rick Young 1991-10-9 sc 2929 Santa Barbara Santa Cruz Island, Saddle at extreme E end of Navy Road 366 Comment
  RSA625400  Lactuca serriola Mary DeDecker 1973-9-12 3356 Inyo Sierra Nevada: South Fork Oak Creek; Pasture at Bright Ranch. 1584 Comment
  RSA639176  Lactuca serriola L. C. Wheeler 1967-7-6 9934 Los Angeles San Gabriel Mountains: San Dimas Canyon. 441 Comment
  RSA640039  Lactuca serriola Steven A. Junak 1996-10-2 SCI 700 Los Angeles San Clemente Island: Lower portion of Horse Canyon, ca. 2.78 miles SSW of Thirst. 91 Comment
  RSA640521  Lactuca serriola Steven A. Junak 1996-9-28 672 Los Angeles San Clement Island: W side of island, in middle portion of Box Canyon 335 Comment
Read comments
Jun 23 2015
  RSA643852  Lactuca serriola Steven A. Junak 1996-9-29 SC 1 -683 Los Angeles San Clemente Island: W side of island, in Middle Ranch Canyon, ca. 0.3 mile downstream from upper road crossing. 396 Comment
  RSA679334  Lactuca serriola Sarah J. De Groot 2002-8-4 788 San Diego Hidden Meadows 92026 Comment
  RSA682300  Lactuca serriola R. E. Riefner 2000-8-29 00 -758 Los Angeles La Tuna Canyon, Santa Monica Mountains. Conservency Park, second canyon at picnic stop along La Tuna Canyon Rd. S of 210 Freeway. 462 Comment
  RSA708392  Lactuca serriola L. M. Moe 2001-9-29 2186 Kern Plants of Ft. Tejon State Park. 1006 Comment
  RSA709060  Lactuca serriola L. M. Moe 2004-8-16 2625 Kern Tule Elk State Reserve. Large colony along west bank of outlet canal near the Adobe. 88 Comment
  RSA784836  Lactuca serriola J. D. Olmsted 1959-9-11 959 Inyo 1 mile W of Bishop on main road up Bishop Creek to Lake Sabrina, Sierra Nevada; drainage area: Owens River. 1311 Comment
  RSA796383  Lactuca serriola Peter Rubtzoff 1958-9-6 3975 Sonoma Laguna de Santa Rosa, north of Cunningham (near Todd Road). Comment
  RSA94814  Lactuca serriola F. W. Peirson 1921-9-21 2584 Los Angeles at 1085 New York Drive, Altadena. Comment
  RSA97583  Lactuca serriola Chas. H. Quibell 1953-6-3 2189 Fresno Stewart and Nuss gravel property in the narrowed San Joaquin R. bottom (where it runs NE-SW) just downstream from Hwy 99 and S.P.R.R. bridges. River on SE side - separated from mile long pond on NW side by road-bearing dike 8-10 ft high. Comment
  SBBG105362  Lactuca serriola H. L. Ferguson 1981-8-11 261 Los Angeles near S end of old airfield on both side of Main Rd and around deserted barracks 266 Comment
  SBBG106258  Lactuca serriola S. A. Junak 1981-7-30 SCl 33 Los Angeles just S of old airfield 262 Comment
  SBBG108936  Lactuca serriola S. A. Junak 1996-9-28 SCl 672 Los Angeles middle portion of Box Cyn 335 Comment
  SBBG108946  Lactuca serriola S. A. Junak 1996-9-29 SCl 683 Los Angeles Middle Ranch Cyn, ca. 0.3 mi downstream from upper rd crossing 396 Comment
  SBBG109008  Lactuca serriola S. A. Junak 1996-10-2 SCl 700 Los Angeles lower portion of Horse Cyn, ca. 2.78 mi SSW of Thirst 91 Comment
  SD140186  Lactuca serriola R. D. Goeden, J. Teerink 1993-8-17 893 3 Mono Toiyabe National Forest: North of Bridgeport. 1963 Comment
Read comments
Mar 24 2016
  SD31156  Lactuca serriola Edith A. Purer 1931-8-15 Los Angeles Palos Verdes Hills Comment
  SEINET10473872  Lactuca serriola Lowell Ahart 1983-8-27 Ahart 4351 Sutter A little south of the Myers Ranch, ca. 1 mi south of the Myers home, Sutter Buttes, west of Marysville. Foothill Woodland; 50 m. 50 Comment
  SEINET10473873  Lactuca serriola Lowell Ahart 1983-9-19 Ahart 4458 Butte T17N R1E section 14. Ca. 1/8 mi s of the Graylodge Wildlife Refuge headquarters, ca. 12 mi sw of Gridley. Valley Grassland; 35 m. 35 Comment
  SEINET10473874  Lactuca serriola Lowell Ahart 1983-9-19 Ahart 4457 Butte T17N R1E section 14. Ca. 1/8 mi s of the Graylodge Wildlife Refuge headquarters, ca. 12 mi sw of Gridley. Valley Grassland; 35 m. 35 Comment
  SEINET10473875  Lactuca serriola Lowell Ahart 1985-10-19 Ahart 5217 Sutter Dean Ranch, Sutter Buttes. About 12 miles west of Marysville. Comment
  SEINET10759239  Lactuca serriola David B. Dunn, A. Folsom 1948-6-17 Dunn 3796 Riverside At quad 1. At camp in Pushawalla Canyon under palms. Indio Hills, Colorado Desert. Comment
  SEINET10971245  Lactuca serriola Mary Susan Taylor 1979-11-11 Taylor 2283 Butte T20 N R1E. Ca. 6 mi S of Chico, on W side of Goodspeed-Watt Road. With Jim Jokerst. 34 Comment
  SEINET11446728 Image available Lactuca serriola C. N. Saulisberry 1949-8-1 4 Alpine Along road, Markleeville Guard Station 1677 Comment
  SEINET11811174  Lactuca serriola H. W. Graham 1927-1 9- 11 -38 Marin from Mill Valley to Muir Woods, near San Francisco Comment
  SEINET11811175  Lactuca serriola J. P. Tracy 1949-1 18403 Humboldt Trinity River valley, at Willow Creek 152 Comment
  SEINET6050464  Lactuca serriola Unknown 1996-9-24 8952 Los Angeles San Gabriel Mountains. Near mouth of Bear Canyon, off Soledad Canyon. Comment
  UC1069691  Lactuca serriola Jerome S. Horton 1936-8-26 395 Los Angeles Tanbark Pomona Quadrangle Comment
  UC1300302  Lactuca serriola Robert M. Lloyd 1963-8-22 3334 Inyo Toll House Springs White Mountains, Westgard Pass Road 1859 Comment
  UC1595409  Lactuca serriola Tim Ross and Annette H. Ross 1991-7-29 5701 Los Angeles Elephant Hill San Dimas USGS 7.5' Quad, W Pomona, Puente Hills (n-most point in Puente Hills, e and ne slopes of e summit area) 304 Comment
  UCD132426  Lactuca serriola Frederica Bowcutt 1993-6-25 1601 Sacramento Delta Meadows River Park. About 25 air miles S of Sacramento, 10 air miles W of Galt, and 1 air mile NE of Walnut Grove. Immed. E of Locke, in the Sacramento River Delta, N of the Delta Cross Channel. Along levee road parallel to side slough of Snodgrass Slough. Old Southern Pacific railroad right-of-way between boat put in, N to half way to end of levee road. 1 Comment
  UCD133533  Lactuca serriola L. Ahart 1983-9-19 4457 Butte around 1/8 mile south of the Graylodge Wildlife Refuge headquarters, around 12 mile southwest of Gridley. 35 Comment
  UCD133536  Lactuca serriola Beecher Crampton 1961-8-1 s.n. Yolo UC Davis campus. Comment
  UCD133537  Lactuca serriola Bellue-Goodwin 1932-7-1 s.n. Sacramento exact location unknown. Comment
  UCD133539  Lactuca serriola L. E. Hazeltine 1916-7-1 s.n. Butte Chico. Comment
  UCD133541  Lactuca serriola L. E. Hazeltine 1916-7-1 s.n. Butte Chico. Comment
  UCD133543  Lactuca serriola A. A. Heller 1916-9-9 12654 Butte near Durham. Comment
  UCD133549  Lactuca serriola Chas. H. Quibell 1953-6-3 2189 Fresno Stewart and Nuss gravel property in the narrowed San Joaquin River bottom (where it runs ne-sw) just downstream from Highway 99 and S.P.R.R. bridges. River on s.e. side - separated from mile long pond on n.w. side by road-bearing dike 8-10' high. Comment
  UCD133553  Lactuca serriola R. N. Raynor 1938-8-15 s.n. Yolo Davis. Comment
  UCD133554  Lactuca serriola Bob Rodin 1943-8-14 317 Alameda Strawberry Canyon, University of California Campus, Berkeley. On lowe road near Botanical Garden. Comment
  UCD133555  Lactuca serriola Malcolm A. Nobs; S. Galen Smith 1948-7-19 167 Merced Los Banos Wildlife Refuge, 2 miles north of Los Banos. Comment
  UCD133558  Lactuca serriola Robert F. Thorne; J. Dourley 1967-10-10 37333 Los Angeles San Gabriel Mountains, Angeles National Forest, Jackson Lake, west end of lake. 1866 Comment
  UCD133562  Lactuca serriola Collector unknown Date Unknown s.n. Unknown exact location unknown. Comment
  UCD133563  Lactuca serriola Perry S. Allen 1969-8-7 488 Stanislaus edge of La Grange Dam Road, one mile east of la Grange. Comment
  UCD133564  Lactuca serriola Beecher Crampton 1954-10-20 2297 Yolo 5 miles east of Davis, banks of irrigation ditch for rice fields. Comment
  UCD133565  Lactuca serriola G. F. Hrusa 1992-8-26 9542 San Joaquin to the immediate west of the westernmost parking area. Caswell Memorial State Park. Comment
  UCD133570  Lactuca serriola R. N. Raynor 1938-8-15 s.n. Yolo Davis. Comment
  UCD133571  Lactuca serriola Bob Rodin 1943-7-17 267 Alameda Strawberry Canyon, University of California Campus, Berkeley. On southwestern ridge. Comment
  UCD133573  Lactuca serriola G. L. Stebbins 1977-8-7 77140 El Dorado Camino. 914 Comment
  UCD133574  Lactuca serriola Ernest C. Twisselmann 1958-8-27 4740 San Luis Obispo San Luis Obispo County: Bitterwater Road at Grant's Lake, eastern part of county. Shandon, CA. 609 Comment
  UCD18425  Lactuca serriola Gabor Bethlenfalvay 1973-4-23 9 Yolo city of Davis, Russell Blvd. and La Rue Rd. 15 Comment
  UCD32804  Lactuca serriola Beecher Crampton 1954-10-20 2297 Yolo 5 miles east of Davis, banks of irrigation ditch for rice fields. Comment
  UCD35198  Lactuca serriola Beecher Crampton 1953-9-30 1629 Yolo 3 miles northeast of Davis. Comment
  UCSB40131  Lactuca serriola Norton, R. 1979-7-24 Santa Barbara About 200 ft. east of San Marcos Rd. on Hollister Comment
  UCSB43161  Lactuca serriola Fletcher, Martin 1980-8-16 Santa Barbara 2.2 miles north of the coast in Bulito Canyon 170 Comment
  UCSB45708  Lactuca serriola Welton, Patti 1983-7-28 Santa Barbara On southwest dam of Carneros Dam, Goleta; Lake Los Carneros County Park Comment
  UCSB71342  Lactuca serriola Orr, Bruce 1980-8-30 Mono Eastern Sierra Nevada, Convict Creek, UC Sierra Nevada Aquatic Research Lab, Mt. Morrison Rd, 0.8 mi NW of intersection with Hwy 395 2156 Comment
  UCSC010145  Lactuca serriola D. Styer 2011-9-23 161 Monterey North of Reservation Road, Fort Ord National Monument (Region J2) Comment
  CLARK-A1528-253  Lactuca serriola f. integrifolia John C. Roos 1951-9-15 5203 San Bernardino Loma Linda 304 Comment
  CLARK-A1528-5659  Lactuca serriola f. integrifolia John C. Roos 1938-8-19 584 San Bernardino Loma Linda Comment



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