CCH1:
Featuring California vascular plant data from the Consortium of California Herbaria and other sources
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Please cite data retrieved from this page:
Biodiversity data provided by the participants of the Consortium of California Herbaria (Accessed through CCH1 Data Portal, ucjeps.berkeley.edu/consortium/, 2022 August 13.

Literature Citation:
CCH1 Portal. 2022. Biodiversity data provided by the participants of the Consortium of California Herbaria (https://ucjeps.berkeley.edu/consortium/ Accessed on August 13).

Records are made available under the CCH Data Use Terms.

Please send questions or comments to Jason Alexander (jason_alexander@berkeley.edu).


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    An accepted name was found==>Sonchus oleraceus.
    Synonyms were NOT found.

    You searched for: Sonchus oleraceus

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      F CCH1_AIDherbscientific namecoll. namecoll. num.formatted datecountylocality
    LA32075LASonchus oleraceusPeter H. Raven1959-9-18 Los AngelesCampus of University of California at Los Angeles
    SBBG181461SBBGSonchus oleraceusA. Sawdo, E. Edinger1988-5-19 Santa BarbaraSanta Rosa Island: near ranch house, plot 114
    SBBG67930SBBGSonchus oleraceusP. Bartholomew1939-8-08 Santa BarbaraSanta Ynez Mtns: Romero Cyn
    SBBG40797SBBGSonchus oleraceusHenry M. Pollard1958-10-30 Santa BarbaraVia Bendita, Hope Ranch, Santa Barbara
    SBBG37183SBBGSonchus oleraceusHenry M. Pollard1970-5-26 VenturaCasitas Pass Rd, ca. 1 N of Ventura River bridge, Foster Park
    SBBG43832SBBGSonchus oleraceusMichael R. Benedict1971-7-14 Santa BarbaraSan Miguel Island: 0.75 N of Tyler Bight
    SBBG43134SBBGSonchus oleraceusMichael R. Benedict1970-4-22 VenturaEast Anacapa Island: N of Coast Guard Compound, E part of island
    SBBG129247SBBGSonchus oleraceusK. Danielsen, B. Halverson1987-4-09 VenturaWest Anacapa Island: W end of Island
    SBBG47994SBBGSonchus oleraceusMichael R. Benedict1968-11-02 Santa BarbaraSanta Cruz Island: Buena Vista
    SBBG53139SBBGSonchus oleraceusR. Pitman, M. Naughton1977-6-04 Santa BarbaraSan Miguel Island: SW portion of Prince Island
    SBBG79454SBBGSonchus oleraceusRalph Hoffmann1931-4-11 Santa BarbaraSanta Cruz Island: main ranch
    SBBG67928SBBGSonchus oleraceusHenry M. Pollard1946-4-28 VenturaVentura River
    SBBG79452SBBGSonchus oleraceusRalph Hoffmann1925-3-28 Santa BarbaraSanta Cruz Island
    SBBG151072SBBGSonchus oleraceusM. C. Hochberg1979-4-04 Santa BarbaraSanta Barbara Island: N of upper Graveyard Cyn
    SBBG151074SBBGSonchus oleraceusT. Murphey1983-8-30 Santa BarbaraSanta Barbara Island: N side of trail on the E slope of North Pk, just below summit
    SBBG51808SBBGSonchus oleraceusMichael R. Benedict1968-3-21 Santa BarbaraSanta Cruz Island: near S end of Christi beach
    SBBG86614SBBGSonchus oleraceusT. L. Secrest1964-4-20 Santa BarbaraLos Olivos St and Castillo St, Santa Barbara
    SBBG28119SBBGSonchus oleraceusHenry M. Pollard1967-8-30 Santa BarbaraSanta Barbara Harbor breakwater
    SBBG52604SBBGSonchus oleraceusR. Zembal1977-5-21 VenturaPacific Missile Test Center: field W of Laguna Rd and N of Beach Rd
    SBBG79459SBBGSonchus oleraceusRalph Hoffmann1929-4-16 Santa BarbaraSanta Rosa Island: Lobos Cyn
    SBBG20968SBBGSonchus oleraceusHenry M. Pollard1964-4-25 VenturaSan Antonio Crk Rd, near Royal Oaks Dairy; Ojai
    SBBG51708SBBGSonchus oleraceusMichael R. Benedict1967-8-29 Santa BarbaraSanta Cruz Island: W side of mouth of Horqueta Cyn, ca. 2 mi E of Laguna Harbor
    SBBG67922SBBGSonchus oleraceusRalph Hoffmann1925-5-07 Santa BarbaraCarpinteria
    SBBG139061SBBGSonchus oleraceusBarbara Holzman2018-3-16 San FranciscoSoutheast Farallon Island: Next to porch of coast guard house.
    SBBG91507SBBGSonchus oleraceusMichael R. Benedict1967-9-12 Santa BarbaraSanta Cruz Island: mouth of Water Cyn, ca. 0.5 mi E of Prisoners Harbor
    SBBG14914SBBGSonchus oleraceusHenry M. Pollard1962-10-19 VenturaSouthern Pacific Railroad, near oilfields, Ortonville
    SBBG43141SBBGSonchus oleraceusMichael R. Benedict1970-4-22 VenturaEast Anacapa Island: NW of lighthouse, E part of island
    SBBG37340SBBGSonchus oleraceusHenry M. Pollard1970-4-07 VenturaVentura River, N of and near Baldwin Rd (St Hwy 150) crossing
    SBBG67929SBBGSonchus oleraceusHenry M. Pollard1944-10-20 VenturaNorth Signal St; Ojai
    SBBG79450SBBGSonchus oleraceusL. G. Yates?1893 Santa BarbaraSanta Cruz Island
    SBBG79453SBBGSonchus oleraceusRalph Hoffmann1930-9-22 Santa BarbaraSanta Cruz Island: Dick's Harbor (Dix Harbor)
    SBBG79457SBBGSonchus oleraceusRalph Hoffmann1927-3-25 Santa BarbaraSan Miguel Island
    SBBG79449SBBGSonchus oleraceusRalph Hoffmann1929-3-16 VenturaAnacapa islands: Anacapa Island
    SDSU00535SDSUSonchus oleraceusWaggoner, M.1963-7-29 San DiegoNortheast of 9433 Alto Drive, Mount Helix area.
    SDSU00538SDSUSonchus oleraceusHanshaw, Pat R.1965-5-07 San DiegoAdjacent to Montezuma Rd. and E. of Fallview Dr. at corner of lower parking lot of State College Campus.
    SDSU00539SDSUSonchus oleraceusLarson, Larry L.1971-5-24 San DiegoCanon betweeen Bayview Mobil Home Park and Chollas Sanitary Fill.
    SDSU13820SDSUSonchus oleraceusMiller, W.1972 Riverside
    SJSU8162SJSUSonchus oleraceusS.T. Kraten1973-2-28 Santa Clara1616 Hollenbeck Ave., Sunnyvale
    UCSB028298UCSBSonchus oleraceusPaul Reisentz1979-4-22 VenturaMirror Lake, 1/2 mile south of intersection of Hwy. 150 and Hwy 33, 3 miles SW of Ojai, 12 miles N of Ventura
    IRVC105429IRVCSonchus oleraceusR. Acevedo1965-5-05 OrangeBack Bay
    IRVC105442IRVCSonchus oleraceusR. Salcido1965-5-08 ?  OrangeCorona.
    CHSC38390CHSCSonchus oleraceus1975-3-9 ButteUpper Bidwell Park, Chico, on the north rim ca. 2.0 mi e of the power lines.
    CHSC424CHSCSonchus oleraceusJ. Turner1930-5-14 ButteChico Creek road.
    CHSC55887CHSCSonchus oleraceusS. C. Morey1986-7-07 SolanoSuisan Marsh. Southeast side of Van Sickle Island adjacent to the Sacramento River. T0 N R01E S USGS Quadrangle: Antioch North
    CHSC114665CHSCSonchus oleraceusM. K. Beyers s.n.2009-11-16 SacramentoCity of Sacramento: in the north eastern portion of the north lot at Sacramento City College.
    CATA2799CATASonchus oleraceusMichael R. Benedict1971-7-14 Santa BarbaraSan Miguel Island: 3/4 mile north of Tyler Bight, west end of island
    CATA2798CATASonchus oleraceusMichael R. Benedict1968-11-02 Santa BarbaraSanta Cruz Island: Buena Vista
    CATA2797CATASonchus oleraceusMichael R. Benedict1970-4-22 VenturaEast Anacapa Island: North of Coast Guard Compound, east part of island
    CSUSB93851CSUSBSonchus oleraceusAylin Portillo2019-5-8 San Bernardino1 W. 9th Street, San Bernardino, California.
    UC36529UCJEPSSonchus oleraceusJ. Burtt Davy1893-6-03 AlamedaBerkeley
    UC36526UCJEPSSonchus oleraceusT. H. Gilbert1899-6-01 SiskiyouScott River Valley
    UC455896UCJEPSSonchus oleraceusI. J. Condit1910-10-15 San Luis ObispoCalifornia Polytechnic School
    UC75803UCJEPSSonchus oleraceusunknown1903-6-01 Los AngelesLos Angeles
    UC1443161UCJEPSSonchus oleraceusH. A. Wier, R. M. Beauchamp1978-7-04 VenturaSilver Tank Spring , Silver Tank Spring (San Nicolas Island)
    UC36527UCJEPSSonchus oleraceusJ. Burtt Davy1893-6-03 AlamedaBerkeley
    IRVC105444IRVCSonchus oleraceusD.W. Goodall1968-4-02 Imperial1 W of Glamis.
    UC134386UCJEPSSonchus oleraceusH. Hemphill1901-1-01 VenturaAnacapa Island
    MCCC358MCCCSonchus oleraceusRita Fenton1982-2-26 MendocinoSkunk Railroad right-of-way, Pudding Creek
    MCCC359MCCCSonchus oleraceusRita Fenton1982-2-26 MendocinoSkunk Railroad right-of-way, Pudding Creek
    MCCC384MCCCSonchus oleraceusMarcia Snyder1982-3-18 MendocinoHesser House
    CDA0032940CDASonchus oleraceusD. Barbe & P. Hiatt1979-5-01 SonomaSouth of Asti; on Asti Road, 0.45 mile south of Washington School Road.
    CDA0032941CDASonchus oleraceusDoug Barbe & Phyllis Hiatt1979-5-02 ColusaWilliams; waste ground by Shell station.
    CDA0040191CDASonchus oleraceusM. Beyers2014-2-22 YoloWinters.
    LA00638575LASonchus oleraceusHarlan Lewis1940-8-14 Los AngelesSanta Monica Mountains; Campus of University of California at Los Angeles
    PUA6720PUASonchus oleraceusLavern C. Wolcott1951-6-13 MendocinoLocal landmark: Albion. Albion Quad.
    PUA44067PUASonchus oleraceusJoe Callizo1980-5-29 NapaLocal landmark: Napa. Napa Quad.
    PUA64261PUASonchus oleraceusG.L. Clifton1986-5-29 Santa CruzLocal landmark: Ruins Creek. Felton Quad.
    PUA55674PUASonchus oleraceusBill Grummer1982-8-08 NapaLocal landmark: Robert L. Stevenson Mem. Park. Detert Reservoir Quad.
    PUA60801PUASonchus oleraceusG.L. Clifton1984-5-30 SonomaLocal landmark: Socrates Mine. The Geysers Quad.
    UCSB028359UCSBSonchus oleraceusGray, Violet0011980-1-19 Santa BarbaraIn yard at 7363 Freeman Pl., Goleta
    RSA0036768RSASonchus oleraceusTOAD0013-811981-3-03 Los Angeles1 W. Grondahl, Covina. On NW corner of property.
    RSA658716RSASonchus oleraceusMargaret Murphy0026-C1983-5-15 Riversidelocated in the north section of parsel 475-090-006, lot 20 Moreno Acres of the unincorporated area known as Sunnymead.
    PGM5512PGMSonchus oleraceusHowitt, Beatrice F00321955-5-09 MontereyMonterey Peninsula, Pacific Grove, Piedmont Avenue Del Monte Park
    DAV353831DAVSonchus oleraceusN. Nicola0072001-3-14 YoloYolo County: Sacramento Valley, 4 miles west of Woodland, at Canone of Cache Creek.
    LOB118453LOBSonchus oleraceusBryana Olmeda012017-3-4 OrangeSanta Ana Mountains, Cleveland National Forest, Silverado Canon, Motorway Trail.
    RSA587426RSASonchus oleraceusD. L. Banks05701995-6-02 RiversideNW Palomar Mountains; Cleveland National Forest, Agua Tibia Wilderness Area; N face of N peak of Agua Tibia Mountain; On the Woodchuck Trail N of the Riverside County boundary, in the clay grasslands in section 3 W of the Dripping Springs Alcove Area.; Pechanga Quad
    UCR223419UCRSonchus oleraceusDick Newell0652011-3-1 OrangeLomas de Santiago, Hicks Canon Haul Road, above Jeffrey Rd. and below Hwy 241 crossing
    SD159764SDSonchus oleraceusDavid Lawhead12004-4-13 San DiegoAgua Hedionda Lagoon - east end, Southeast of the City of Carlsbad
    SDSU21809SDSUSonchus oleraceusAhmed, Nashaad12016-3-17 San DiegoSan Diego State University, next to parking lot 15 (formerly X), near bottom half of stairs.
    RSA660568RSASonchus oleraceusLydia Paneri11982-4-17 RiversideCajalco Road, 0.7 miles east of I-15; south of Corona.
    CAS-BOT374655CASSonchus oleraceusRuckert, Elsa G.11960-2-20 Napa6495 Dry Creek Road. Field southwest of house
    SD169868SDSonchus oleraceusRichard L. Breisch102005-2-27 San DiegoCity of San Diego, Mission Bay Park, Least Tern nesting site at south end of Mariner's Way, near end of peninsula.
    POM11349RSASonchus oleraceusF. L. Robinson101921-3-17 Los AngelesClaremont, near the Greek [Theater]
    SHTC136SHTCSonchus oleraceusLemos, Joya102016-3-22 StanislausCSU Stanislaus Canon CSU Stanislaus campus near intersection of Monte Vista Ave. & Andre Ln.
    SD174850SDSonchus oleraceusScott Boczkiewicz10012005-2-5 San DiegoPeninsular Ranges, San Ysidro Mountains: west side of Otay Mountain; 1.5 km south-southeast of Savage Dam (Otay Lake); north of County Prison; near tributary to Otay River, north of O'Neal Canon.
    IRVC105446IRVCSonchus oleraceusScott Boczkiewicz10012005-2-5 San DiegoW side of Otay Mtn; 1.5km SSE of Savage Dam (Otay Lake); N of County Prison; near tributary to Otay River, N of O'Neal Canon.
    RSA709713RSASonchus oleraceusScott Boczkiewicz10012005-2-5 San DiegoPeninsular Ranges, San Ysidro Mountains: W side of Otay Mtn; 1.5 km SSE of Savage Dam (Otay Lake); N of County Prison; near tributary to Otay River, N of O'Neal Canon.
    UCR170420UCRSonchus oleraceusGeorge K. Helmkamp100282005-11-15 El Dorado[E of Sacramento, c. 3 air mi NNW of Placerville]; South Fork of American River on the west side of Calif. Highway 193
    RSA680136RSASonchus oleraceusSarah J. De Groot10072003-2-16 San DiegoHidden Meadows: Cerveza Dr.
    RSA176778RSASonchus oleraceusJohn H. Thomas101121963-5-20 San MateoAno Nuevo Island, about 0.5 mile off shore and about 20 miles NW of Santa Cruz.
    CAS-BOT374701CASSonchus oleraceusThomas, John H.101121963-5-20 San MateoAno Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz
    POM201741RSASonchus oleraceusL. M. Booth10121932-5-12 OrangeNewport Bay.
    UC537022UCJEPSSonchus oleraceusLawrence M. Booth10121932-5-12 OrangeNewport Bay
    UCR211476UCRSonchus oleraceusJim Andre101372009-4-10 San Bernardinosouthwest end of the Clipper Mountains. Along dirt road to Bonanza Mine, 2.2 miles north of Hwy 66 at Danby
    SD166517SDSonchus oleraceusJon P. Rebman101582004-5-11 San DiegoSycuan Peak Ecological Reserve (California Dept. of Fish & Game): southeast of Dehesa, south of Loveland Reservoir on the lower north side of Sycuan Peak; Sweetwater River watershed in Sloane Canon
    UCR157558UCRSonchus oleraceusJon P. Rebman101582004-5-11 San DiegoSycuan Peak Ecological Reserve (California Dept. of Fish & Game): southeast of Dehesa, south of Loveland Reservoir on the lower north side of Sycuan Peak; Sweetwater River watershed in Sloane Canon
    SD187368SDSonchus oleraceusScott D. White101752004-4-16 RiversideIndian Creek and adjacent slopes.
    RSA708070RSASonchus oleraceusScott D. White101752004-4-16 RiversideSoboba Indian ReservationSan Jacinto Mountain foothills: Indian Creek and adjacent slopes.; Lake Fulmor
    UCR219444UCRSonchus oleraceusR.G. Swinney101762009-3-26 Los AngelesAzusa, San Gabriel River at El Encanto Azusa River Wilderness Park
    SD221953SDSonchus oleraceusJoe Barth10182010-5-16 San DiegoCity of Santee. Around hill and area adjacent to baseball fields just N of San Diego River. W of Riverford Rd, S of Mast Blvd, E of Ramsgate Wy.
    UCR255105UCRSonchus oleraceusJoe Barth10182010-5-16 San Diegocity of Santee, around hill and area adjacent to baseball fields just north of San Diego River. West of Riverford Road, south of Mast Blvd, east of Ramsgate Way. Atlas Square: P13
    CAS-BOT374587CASSonchus oleraceusWetzel, Cherie L.10191969-8-28 AlamedaNiles Canyon and Vicinity. Alameda Creek at Mission Blvd.
    SD158778SDSonchus oleraceusJoe Barth1022004-8-24 San DiegoChula Vista Wildlife Reserve: in southeast SanDiego Bay; access via electrical power plant. (CVWR was constructed as mitigation for the adjacent J St. marina construction).
    SHTC1109SHTCSonchus oleraceusJones, D.10202016-3-1 San Joaquingrowing along an old irrigation berm in a walnut orchard in Linden California
    UCR219557UCRSonchus oleraceusR.G. Swinney102122009-3-28 Los AngelesMonrovia Mountain Park, trail 0-40 m above canyon bottom, from park entrance to 0.4 mi. up canyon
    DAV353841DAVSonchus oleraceusMary M. Hektner1031974-7-02 SonomaSonoma County: Near State Highway 1, Sea Ranch, Unit 28 Owner's Map.
    DAV353801DAVSonchus oleraceusFrederica Bowcutt10311987-5-28 MendocinoMendocino County: Sinkyone Wilderness State Park; along the North Fork of Jackass Creek; just north of old town of Wheeler. SE of Bear Harbor 2 air miles.
    UCR266454UCRSonchus oleraceusMitch Provance103362009-4-7 KernWhite Wolf Grade, c. 6 miles ENE of Arvin, N side of Bear Mountain Blvd. (Hwy 223)
    DAV353819DAVSonchus oleraceusFrederica Bowcutt10371987-5-28 MendocinoMendocino County: Sinkyone Wilderness State Park; along the North Fork of Jackass Creek; just north of old town of Wheeler. SE of Bear Harbor 2 air miles.
    SFV103151SFVSonchus oleraceusD. K. Shayne1041966-3-09 Los AngelesSanta Susana Mountains; Above Zelzah Ave.
    HSC6224HSCSonchus oleraceusJ.W. Johnson10431961-8-17 HumboldtArcata, W.M. Lanphere Farm, Samoa Peninsula.
    RSA678347RSASonchus oleraceusSteve Boyd104592003-4-17 RiversideEast side of mouth of Chino Canon, at upper edge of bajada and lower rocky slope of mountains, along road to Palm Springs Tram Station.
    CAS-BOT374688CASSonchus oleraceusRubtzoff, Peter10491952-5-14 San FranciscoSan Francisco. Sand dunes at 37th Avenue betw. Ortega and Quintara streets
    UC557746UCJEPSSonchus oleraceusNell Murbarger1051936-3-01 Los AngelesSan Clemente Island
    CAS-BOT374589CASSonchus oleraceusWetzel, Cherie L.10531969-9-23 AlamedaNiles Canyon and Vicinity. Shillings Park
    JROH1260JROHSonchus oleraceusJohn H. Thomas105341964-11-29 San MateoJasper Ridge Biological Preserve, Stanford University; W end of Searsville Dam
    CAS-BOT374652CASSonchus oleraceusHowitt, Beatrice F.10541958-5-29 MontereySanta Lucia Mountains. By side of trail in Del Monte Forest
    SD166882SDSonchus oleraceusJon P. Rebman105552004-6-1 San DiegoOtay Mountain Ecological Reserve (California Dept. of Fish & Game): Southeast of Otay Lake; south of Otay Lakes Road, just north of the old olive grove
    UCR156233UCRSonchus oleraceusJon P. Rebman105552004-6-1 San DiegoOtay Mountain Ecological Reserve (California Dept. of Fish & Game): Southeast of Otay Lake; south of Otay Lakes Road, just north of the old olive grove
    CAS-BOT374605CASSonchus oleraceusTwisselmann, Ernest C.105821965-4-21 KernTehachapi Mountains. Tejon Canyon
    CAS-BOT374606CASSonchus oleraceusTwisselmann, Ernest C.105821965-4-21 KernTehachapi Mountains. Tejon Canyon
    CAS-BOT374699CASSonchus oleraceusThomas, John H.106021965-4-29 San MateoSan Bruno Mountain in northern part of county
    RSA704741RSASonchus oleraceusSarah J. De Groot10622003-3-1 San BernardinoBLMWhipple Mountains: Bass Point, along Parker Dam road. Between Colorado River and Parker Dam road.
    CAS-BOT177409CASSonchus oleraceusDe Groot, Sarah J.; Porter, J. Mark10622003-3-1 San BernardinoWhipple Mountains: Bass Point, along Parker Dam road Elev. given as 350ft.
    CAS-BOT374683CASSonchus oleraceusRubtzoff, Peter10651952-5-29 San FranciscoSan Francisco. Sand dunes at 37th Avenue between Ortega and Quintara streets
    CAS-BOT374635CASSonchus oleraceusPenalosa, Javier10681961-2-25 MarinTiburon Peninsula. Tiburon. Along Tiburon Blvd. near NWPRR Water Tower
    SD166883SDSonchus oleraceusJon P. Rebman106872004-8-20 San DiegoLake Sutherland: north of Hwy. 78 between Ramona and Santa Ysabel; dry lakebed at southeast end of lake
    UCSB028456UCSBSonchus oleraceusBaley, David; Lampl, Diane10861981-9-05 Santa BarbaraSoutheast area of Cachuma Lake, where dirt road forks, 1/4 mile West of the end of the paved old highway and 1/4 mile North of Highway 154
    RSA591062RSASonchus oleraceusJ. Mark Porter109271996-6-05 Los AngelesCa. 2 N Solemint, just off Arline Rd., 2.0 mi from intersection with Sierra Hwy. Around a vernal pool on shelf above Plum Canon and Arline Rd. Pool not evident from road.
    SD00007995SDSonchus oleraceusJon P. Rebman109392005-2-10 ImperialLittle Picacho Wilderness Area (BLM property), north of Winterhaven, southwest of Colorado River; approximately 18 miles north of S24, on Picacho Road, just south of the Picacho State Recreation Area. (IPB 10/07)
    UCR170067UCRSonchus oleraceusScott D. White109622005-4-19 ImperialFish Creek Mountains
    SD154486SDSonchus oleraceusMargaret Fillius112004-3-1 San DiegoSouth West section of Rose Canon
    SHTC6915SHTCSonchus oleraceusCarnett, Bryan112018-4-10 StanislausFound in bacckyard garden in Modesto, CA.
    DAV353803DAVSonchus oleraceusCarla DeCrona11--1121992-4-05 SacramentoSacramento Co.: Cosumnes River Preserve Plant Inventory. Area 11: Live Oak, The Point: bounded on N by seasonal slough, on W by RR tracks, on S by Cosumnes River.
    SD00029297SDSonchus oleraceusKorie Merrill11-412011-2-27 Los AngelesSan Clemente Island; Jack Nots planting drainage, west of road
    CDA0034028CDASonchus oleraceusD.G. Kelch11.0872011-4-6 AlamedaNear Don Edward's National Wildlife Area.
    UC557677UCJEPSSonchus oleraceusNell Murbarger1101936-3-01 Los AngelesSan Clemente Island
    CAS-BOT374590CASSonchus oleraceusWetzel, Cherie L.11001969-10-26 AlamedaNiles Canyon and Vicinity. Shilling's Park. Growing at edge of Alameda Creek
    SD253037SDSonchus oleraceusRichard L. Breisch11042014-5-18 San DiegoCity of San Diego; San Clemente Park south side route 52, just SW of junction I-805 and Highway 52; near Kroc Trail & by the creek.
    SD221003SDSonchus oleraceusJoe Barth11112011-2-13 San DiegoBetween 649 and 655 Palm Canon Dr, Borrego Springs.
    UCR263931UCRSonchus oleraceusJoe Barth11112011-2-13 San Diegobetween 649 and 655 Palm Canon Dr., Borrego Springs
    SD168449SDSonchus oleraceusJon P. Rebman111612005-3-4 San DiegoCity of La Mesa, east of San Diego; northwest side of Lake Murray on City MSCP property near trail around lake
    SD190981SDSonchus oleraceusLayla Aerne Hains1122006-6-7 San DiegoBlossom Valley Preserve (Center for Natural Lands Management) ca. 3 NE of Lake Jennings and 0.5 mi NE of Quail Canon Rd and Creek Hills Rd intersection
    SD252046SDSonchus oleraceusMary Ann Hawke1122008-3-5 San DiegoDehesa; Fish & Wildlife Refuge; 0.18 mi E of intersection Willow Glen Road and Dehesa Road; just N of Singing Hills Golf Course
    RSA0065996RSASonchus oleraceusMary A. Hawke1122008-3-5 San DiegoDehesa; Fish & Wildlife Refuge; 0.18 mi E of intersection Willow Glen Road and Dehesa Road; just N of Singing Hills Golf Course. Square Q14.
    UC1070276UCJEPSSonchus oleraceusD. Axelrod1131935-3-17 Santa Barbara1 mi sw Zaca; Lompoc Quad.
    RSA269894RSASonchus oleraceusB. A. Prigge11391973-6-15 San BernardinoClark Mountain Range, Pachalka Spring, 5.9 miles NW of Mt. Pass.
    CAS-BOT374736CASSonchus oleraceusThomas, J. H.11401949-10-9 Santa CruzNear Highway 9 about 1 mile north of drinking fountain toward Saratoga Summit
    SD184681SDSonchus oleraceusPaul Beiley1152006-6-28 San DiegoFlinn Springs, Flinn Springs County Park, 14787 Olde Hwy 80, 1 mi E of intersection with Lake Jennings Park Rd.
    SBBG35792SBBGSonchus oleraceusJ. P. Broughton11591965-7-29 Santa BarbaraSandyland slough, W of Carpinteria
    DAV353856DAVSonchus oleraceusBob Rodin1161943-4-16 AlamedaAlameda County: UC Berkeley. Strawberry Canon. Southern slope. West of the Botanical Garden.
    UC685458UCJEPSSonchus oleraceusBob Rodin1161943-4-16 Alamedaon southern slope w Botanical Garden (Strawberry Canon, University of California Campus, Berkeley); Berkeley, University of California campus, Strawberry Canon
    SBBG67931SBBGSonchus oleraceusM. N. Ackley11651928-12-1 Los AngelesEagle Rock
    POM226221RSASonchus oleraceusJ. T. Howell116721933-9-17 SolanoSuisun
    CAS-BOT374738CASSonchus oleraceusHowell, John Thomas116721933-9-17 SolanoSuisun
    SD00023670SDSonchus oleraceusAndrew R. Pigniolo11722003-5-24 San DiegoJamul area; Honey Springs Road; just S of Bratton Valley along graded dirt road margin at first knoll 200 m southeast of Honey Springs Road.
    CAS-BOT374636CASSonchus oleraceusPenalosa, Javier11741961-3-25 MarinTiburon Peninsula. Tiburon. Near Recreation Center below St. Hilary's Church
    RSA0069885RSASonchus oleraceusR. G. Swinney117512010-2-27 Los AngelesSunland, SE end of Hansen Dam Basin, Haines Canon Channel from the I-210 Fwy, north of Wentworth St., to 0.5 mi. to the west at the Big Tujunga Flood Plain; Sunland 7.5' Q.
    UCR258958UCRSonchus oleraceusR.G. Swinney117512010-2-27 Los AngelesSunland, SE end of Hansen Dam Basin, Haines Canon Channel from the I-210 Fwy, north of Wentworth St., to 0.5 mi. to the west at the Big Tujunga Flood Plain
    RSA614674RSASonchus oleraceusScott D. White11771993-3-12 RiversideNear Winchester.
    DAV353843DAVSonchus oleraceusBarbara Yungert1181974-5-06 YubaYuba County: south of station headquarters, Sierra Foothill Field Station.
    SD171544SDSonchus oleraceusJon P. Rebman118162005-4-22 San DiegoAnza-Borrego Desert State Park: Henderson Canon, approx. 2 miles north of Borrego Springs; on southwest side of canyon
    RSA752339RSASonchus oleraceusJustin M. Wood11822009-7-26 San BernardinoSan Bernardino County Flood ControlWineville Flood Control Basin, NW corner of E Francis St and Wineville Rd, immediately E on Interstate 15.; Guasti
    POM202167RSASonchus oleraceusL. M. Booth11931932-6-15 OrangeMarsh border East of Huntington Beach.
    RSA0081323RSASonchus oleraceusR. G. Swinney119332010-3-16 Los AngelesConfluence of Little Tujunga Wash and Big Tujunga Wash at I-210 crossing, within 50 m on north and south sides of I-210.; Sunland 7.5' Q.
    UCR258707UCRSonchus oleraceusR.G. Swinney119332010-3-16 Los AngelesConfluence of Little Tujunga Wash and Big Tujunga Wash at I-210 crossing, within 50 m on north and south sides of I-210
    OBI145837OBISonchus oleraceusDavid J. Keil119641977-3-25 Santa BarbaraJust E of Pine cyn Ranger Station along Calif 166
    UCSB028353UCSBSonchus oleraceusKathleen Aste121979-2-25 Santa BarbaraOn east side of Camino Corto Rd., between Sueno Rd. and Pasado Rd., Isla Vista
    SHTC514SHTCSonchus oleraceusGarcia, R.122016-4-1 StanislausE of 7th street, 1/8 mi S of whitmore Rd.
    UCSC9653UCSCSonchus oleraceusD. Styer1202012-5-14 MontereySouth Boundary Road; Fort Ord Region E12
    RSA0069876RSASonchus oleraceusR. G. Swinney120912010-3-24 Los AngelesLopez Canon above Pacoima, 1.7 miles west of Kagel Cyn. Road on west side of Lopez Canon Rd.; San Fernando 7.5' Q.
    UCR260007UCRSonchus oleraceusR.G. Swinney120912010-3-24 Los AngelesLopez Canon above Pacoima, 1.7 miles west of Kagel Cyn. Road on west side of Lopez Canon Rd.
    SD232206SDSonchus oleraceusV. Soza12152001-5-14 Los AngelesTransverse Ranges, San Gabriel Mountains region: Santa Anita 1999 Fire area, above Santa Anita Canon, ca. 0.7 mile west of the Santa Anita Dam. SE-facing slope of ridgetop, recently burned area.
    RSA679271RSASonchus oleraceusValerie L. Soza12152001-5-14 Los AngelesAngeles National ForestSanta Anita 1999 Fire area, above Santa Anita Canon, ca. 0.7 mile west of the Santa Anita Dam.; Mount Wilson
    UCR204233UCRSonchus oleraceusValerie Soza12152001-5-14 Los AngelesSanta Anita 1999 Fire area, above Santa Anita Canon, c. 0.7 mi west of the Santa Anita Dam
    CHSC109715CHSCSonchus oleraceusV. Soza12152011-5-14 Los AngelesTransverse Ranges, San Gabriel Mountains region: Santa Anita 1999 Fire area, above Santa Anita Canon, ca. 0.7 mile west of the Santa Anita Dam. T0 N R1 W S09 E1/2 SE1/4 USGS Quadrangle: Mount Wilson
    UC1929639UCJEPSSonchus oleraceusValerie Soza, LeRoy Gross12152001-5-14 Los AngelesTransverse Ranges; San Gabriel Mountains; Santa Anita 1999 Fire area, above Santa Anita Canon, c. 0.7 mi west of the Santa Anita Dam
    UCR259927UCRSonchus oleraceusR.G. Swinney121502010-4-1 Los AngelesPacoima Wash, c. 1 mile NE of I-210 Fwy, just north of Maclay/Harding St. intersection, below Forest Service boundary, from wash bottom to 150 m to the west and from 50 to 150 meters north of Maclay
    HSC6223HSCSonchus oleraceusJ.W. Johnson12161962-4-08 HumboldtArcata, Mad River Co. Park
    RSA760658RSASonchus oleraceusWilliam J. Ferlatte12221970-4-27 Contra CostaSan Francisco Bay, Red Rock Island.
    UC1948948UCJEPSSonchus oleraceusWilliam J. Ferlatte, L. Maynard Moe12221970-4-27 Contra CostaSan Francisco Bay: Red Rock Island
    RSA0077094RSASonchus oleraceusR. G. Swinney122252010-4-15 Los AngelesLime Kiln Canon, 0.25-0.7 miles east of Pacoima Wash.; San Fernanado 7.5' Q.
    UCR259586UCRSonchus oleraceusR.G. Swinney122252010-4-15 Los AngelesLime Kiln Canon, 0.25-0.7 miles east of Pacoima Wash
    CAS-BOT374607CASSonchus oleraceusTwisselmann, Ernest C.122271966-5-12 KernSierra Nevada, Greenhorn Range. Kern Hot Springs
    SD253700SDSonchus oleraceusJohn LaGrange12242013-4-21 San DiegoLake Hodges area; San Dieguito River canyon west of foot bridge; 1 mile west of Lake Hodges dam; just S of Del Dios Highway
    SD175372SDSonchus oleraceusJon P. Rebman122542005-8-13 San DiegoSan Vicente Reservoir: North of Lakeside, east of Hwy. 67, northeast of intersection between Moreno Ave. and Vigilante Road; west side of reservoir in the second cove north of the boat landing
    DAV353823DAVSonchus oleraceusJames Henrickson12321963-4-30 Los AngelesLos Angeles County: Evey Canon, northeast of Claremont, along road to Mt. Baldy.
    RSA0085549RSASonchus oleraceusR. G. Swinney123262010-4-21 Los AngelesPacoima, 0.4-0.6 miles north of Gavina Ave. in Pacoima Wash.; San Fernando 7.5' Q.
    UCR260027UCRSonchus oleraceusR.G. Swinney123262010-4-21 Los AngelesPacoima, 0.4-0.6 miles north of Gavina Ave. in Pacoima Wash
    RSA0054193RSASonchus oleraceusRichard G. Swinney123412010-4-23 Los AngelesSan Gabriel Moutains; lower Loop Canon, 0.2-0.6 miles upstream from Verterans Park, below US Forest Sercive boundary.; San Fernando 7.5'
    UCR258831UCRSonchus oleraceusR.G. Swinney123412010-4-23 Los Angeleslower Loop Canon, 0.2-0.6 miles upstream from Veterans Park, below US Forest Service boundary
    SD10325SDSonchus oleraceusFrank F. Gander1241935-2-19 San DiegoMahogany Canon, east San Diego.
    SD170934SDSonchus oleraceusJeremy Buegge12442005-1-22 San DiegoLake Hodges, S of Escondido. SE section of lake, 0.5 mi SE of summit of Bernardo Mtn, 0.5 W of I-15. Very near high-water mark (lake recently filled).
    CAS-BOT374737CASSonchus oleraceusWilloughby, John W.12471976-3-23 SolanoVaca Mountains. Mix Canyon, on north-facing slope
    UCR285578UCRSonchus oleraceusR.G. Swinney124732010-4-30 Los AngelesNear Sylmar, Wilson Canon Park, northern-most of the two east forks of Wilson Cyn., from the mouth of cyn. at Wilson Debris Basin to 0.3 miles up (east) canyon
    SD170939SDSonchus oleraceusJeannie Gregory12482005-2-5 San DiegoAlpine, Viejas Mountain, W slope, E of Anderson Truck Trail approx. 1.0 mile N of intersection with Victoria Dr.
    PPWD171PPWDSonchus oleraceusG. de Nevers12491981-5-20 SonomaPepperwood Preserve - Weed at Pippendale Garden
    SD175373SDSonchus oleraceusJon P. Rebman124932006-4-27 San DiegoMonte Vista Ranch (owned by The Nature Conservancy): S of Ramona, NW of San Vicente Reservoir; S of San Vicente Road along Chuckwagon Road onto the Ranch; near the electric lines just N of Longs Gulch
    UCR259135UCRSonchus oleraceusR.G. Swinney125302010-5-4 Los Angelesnorth of Sylmar, 50 to 100 meters south of Stetson Debris Basin, west of Sombrero Canon, 150 to 200 meters north of I-210 Fwy. along Saddletree Ranch Trailhead, Stetson Ranch Park
    SD176377SDSonchus oleraceusMargaret R. Mulligan12562005-7-26 San DiegoMcGinty Mountain Ecological Reserve (California Fish & Game). SE of city El Canon. SE of intersection of Willow Glen Dr and Hillsdale Rd, near old gravel pits in the Sweetwater River Floodplain.
    UCR171992UCRSonchus oleraceusMargaret R. Mulligan12562005-7-26 San DiegoMcGinty Mountain Ecological Reserve (California Fish & Game). SE of city El Canon. SE of intersection of Willow Glen Dr and Hillsdale Road. San Diego Atlas Square R14
    SD140176SDSonchus oleraceusScott White12581993-4-22 RiversideNorth Alberhill Ranch, in hills north of Walker Canon.
    CAS-BOT374570CASSonchus oleraceusStanford, E. E.1261927-3-29 San JoaquinStockton
    CAS-BOT650016CASSonchus oleraceusMain, Gerald1261975-4-26 Contra CostaBlack Hawk Ranch: NE of Ranch house
    SD177884SDSonchus oleraceusJon P. Rebman127272006-5-18 San DiegoMonte Vista Ranch (owned by The Nature Conservancy): S of Ramona, NW of San Vicente Reservoir; S of San Vicente Road along Chuckwagon Road onto the Ranch; western portion of Ranch, along riparian zone N of Daney Canon
    UCR203136UCRSonchus oleraceusJon P. Rebman127272006-5-18 San DiegoMonte Vista Ranch (owned by The Nature Conservancy), south of Ramona, northwest of San Vicente Reservoir, south of San Vicente Road along Chuckwagon Road onto the Ranch, western portion of Ranch, along riparian zone north of Daney Canon. Square M14
    RSA100851RSASonchus oleraceusRoxana S. Ferris127291954-4-23 MarinNear Dillons Beach Post Office.
    CAS-BOT374630CASSonchus oleraceusFerris, Roxana S.127301954-4-23 MarinDitches near Dillon's Beach Post Office
    RSA185754RSASonchus oleraceusJohn H. Thomas12751950-2-26 Santa CruzAlong coast at western end of Cliff Drive, Santa Cruz.
    CAS-BOT374735CASSonchus oleraceusThomas, J. H.12751950-2-26 Santa CruzAlong coast at western end of Cliff Drive, Santa Cruz
    JOTR31013JOTRSonchus oleraceusLa Doux, Tasha12792010-6-15 San BernardinoJoshua Tree National Park. Little San Bernardino Mountains; Wonderland of Rocks; above Keys Ranch by dam (Stop 1)
    UC1357801UCJEPSSonchus oleraceusRonald E. Foreman, R. M. Lloyd1291965-12-17 Venturae living quarters (San Nicolas Island); San Nicolas Island
    SD228450SDSonchus oleraceusJoe Barth12972011-4-5 San DiegoJojoba Wash, Anza-Borrego Desert State Park. 2.25 miles due S of Hwy S2, 11 miles due N of Freeway I8, 3.8 miles due W of Imperial county line. Bajada WNW of the Volcanic Hills.
    POM202168RSASonchus oleraceusL. M. Booth12971932-7-21 OrangeNear Sunset Beach, Anaheim Marsh.
    UC537123UCJEPSSonchus oleraceusLawrence M. Booth12971932-7-21 OrangeAnaheim Marsh
    SHTC435SHTCSonchus oleraceusGoodfellow, S. & Moll Lee, K.132016-3-30 StanislausFound very close to the river at Knight's Ferry, CA.
    RSA0080653RSASonchus oleraceusR. G. Swinney130152010-5-29 Los AngelesMay Canon Truck Trail (FSRd. 3N54) crossing of W. Fork May Canon, north side of rd., c. 1.3 air miles NNW of road's entrance at Veterans Memorial Park in Sylmar.; San Fernando 7.5' Q.
    UCR258568UCRSonchus oleraceusR.G. Swinney130152010-5-29 Los AngelesMay Canon Truck Trail (FSRd. 3N54) crossing of W. Fork May Canon, north side of rd., c. 1.3 air miles NNW of road's entrance at Veterans Memorial Park in Sylmar
    CAS-BOT374643CASSonchus oleraceusFerris, Roxana S.; Ernst, W. R.130271956-7-8 MontereyBy Tularcitos Creek, Carmel Valley road, 6 mi. E of Carmel Valley Inn at junction of Salinas cut-off
    CAS-BOT374623CASSonchus oleraceusTwisselmann, Ernest C.13031954-5-28 San Luis ObispoTemblor Range and the Western San Joaquin Valley. Chris Twisselmann Ranch: Eastern San Luis Obispo County
    POM202169RSASonchus oleraceusL. M. Booth13051932-7-23 OrangeCorona del Mar, Newport Beach.
    SD177885SDSonchus oleraceusJon P. Rebman130752007-4-19 San DiegoPoser Mountain (Cleveland National Forest): NE of Alpine and Viejas Indian Reservation; N of Old Viejas Grade Road on the S-facing slope of the mountain
    RSA614168RSASonchus oleraceusD. L. Banks13091997-2-23 RiversideNW Palomar Mountains, Agua Tibia Mountains: Pechanga Indian Reservation, north of Pechanga Road, south of Anza Road, just NNW of San Gabriel Church in the area burned by the 1996 Temecula Fire.; Pechanga
    CAS-BOT374637CASSonchus oleraceusPenalosa, Javier13111961-4-16 MarinTiburon Peninsula. NWPRR yard in Tiburon
    SD179786SDSonchus oleraceusJon P. Rebman131912007-4-23 San DiegoCanon Marine Corps Base: Santa Margarita Mountains, Echo Training Area, just east of Artillery Firing Range 40, northeast of Roblar Road, along road
    RSA0060873RSASonchus oleraceusR. G. Swinney132142010-6-8 Los AngelesPlacerita Canon Natural Area, east entrance (Walker Ranch) from Placerita Cyn. Rd. to canyon bottom and 0.2 miles to the west along Placerita Canon Trail.; Mint Canon 7.5′ Q.
    UCR256872UCRSonchus oleraceusR.G. Swinney132142010-6-8 Los AngelesPlacerita Canon Natural Area, east entrance (Walker Ranch) from Placerita Cyn. Rd. to canyon bottom and 0.2 miles to the west along Placerita Canon Trail
    UCR260393UCRSonchus oleraceusR.G. Swinney132832010-6-21 Los AngelesAngeles National Forest, within 75 meters of Los Pinetos Spring, Los Pinetos Cyn., 0.18 miles N of Santa Clara Truck Trail via trail W of spring
    UC147612UCJEPSSonchus oleraceusMiss Harriet A. Walker13301908-6-27 PlacerBlue Canon
    CAS-BOT374569CASSonchus oleraceusTwisselmann, Ernest C.133171967-6-12 San BenitoCanyon of San Benito River, 4 miles below Picacho
    PPWD495PPWDSonchus oleraceusG. de Nevers13391981-5-30 SonomaPepperwood Preserve - In creek bed N of Hansel's corral. Sand and gravel.
    RSA767461RSASonchus oleraceusJ. Mark Porter133982002-3-2 ImperialImperial Dunes Recreation Area [Algodones Dunes], 0.5 miles west-southwest of Ogilby, west of County road S34.
    SD179788SDSonchus oleraceusJon P. Rebman134442007-5-8 San DiegoBarrett Lake: just south of the dam, along Barrett Lake Road and the flume on the west side of the canyon
    CAS-BOT374734CASSonchus oleraceusThomas, J. H.13601950-3-27 Santa CruzDavenport Landing
    SD179789SDSonchus oleraceusJon P. Rebman136242007-7-9 San DiegoLake Henshaw: SE of East Grade Road and E of Henshaw Truck Trail, approx. 1.3 air miles E of the dam; along the stream feeding into the NE portion of the Lake and on the NE shore
    UCR259402UCRSonchus oleraceusR.G. Swinney136352010-8-30 Los AngelesEast Fork Big Santa Anita Canon from confluence with Big Santa Anita Canon bottom/Gabrieleno Trail to 0.5 mile upstream
    CAS-BOT374619CASSonchus oleraceusTwisselmann, Ernest C.136891967-9-9 San Luis ObispoTemblor Range and the Western San Joaquin Valley. Ortega Spring, Palo Prieta Canyon
    CAS-BOT374620CASSonchus oleraceusTwisselmann, Ernest C.136891967-9-9 San Luis ObispoTemblor Range and the Western San Joaquin Valley. Ortega Spring, Palo Prieta Canyon
    UC691439UCJEPSSonchus oleraceusMary L. Bowerman13691932-4-27 Contra Costaw facing bank of ridge w Riggs Canon (Oyster Ridge, Mount Diablo); Mount Diablo, s face Oyster Ridge
    SD179787SDSonchus oleraceusJon P. Rebman136942007-7-9 San DiegoLake 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
    SD245683SDSonchus oleraceusJerry Green1372010-7-3 San DiegoPenasquitos; north side Black Mountain Peak, vicinity of 0.34 mile S of junction Carmel Valley Rd and Winecreek Rd.
    UCR22055UCRSonchus oleraceusSteve Boyd1371980-4-27 RiversideHarford Springs County Park, northwest corner of the Gavilan Plateau; Gavilan Hills
    CAS-BOT374597CASSonchus oleraceusTracy, Joseph P.138051935-5-16 HumboldtAt Eureka
    UC582435UCJEPSSonchus oleraceusJoseph P. Tracy138051935-5-16 HumboldtEureka
    CAS-BOT374732CASSonchus oleraceusThomas, J. H.13841950-3-30 Santa CruzAlong Ocean Beach just outside of eastern limit of city of Santa Cruz
    SD182956SDSonchus oleraceusJon P. Rebman138722007-9-12 San DiegoSweetwater Reservoir: east of National City and south of La Presa; canyon just below the dam on the west side of the reservoir
    SBBG151062SBBGSonchus oleraceusM. Daily1391979-7-28 VenturaSan Nicolas Island: NW part of the island; ca. the water tank on the way to Red Eye
    SD10587SDSonchus oleraceusFrank F. Gander1391935-3-13 San DiegoMoosa Canon north of Escondido.
    SD220250SDSonchus oleraceusNancy Nenow13912010-8-4 San DiegoWarner Springs Ranch west of highway 79 and just south of the golf club parking lot.
    SD182957SDSonchus oleraceusJon P. Rebman139562007-9-12 San DiegoSweetwater Reservoir: east of National City and south of La Presa; vicinity of wet marsh and meadow areas just northeast and upstream from the east end of the reservoir
    RSA474130RSASonchus oleraceusOra M. Clark13971928-12-23 VenturaSouth of Ventura
    UCR275930UCRSonchus oleraceusT.B. Salvato13972006-5-9 San BernardinoLower Canon Pass, Glen Helen Parkway where it crosses Canon Wash, between Glen Helen Road and Canon Blvd.
    SD205517SDSonchus oleraceusJonathan K. Snapp-Cook1402008-5-24 San DiegoOtay Mountain NW side, Bureau of Land Management, canyon just W of Little Cedar Canon that begins at eastern end of Lower Otay Lake. Entered canyon by heading 2.5 miles SE on the dirt road starting at the yellow gate off Otay Lakes Road.
    SD184236SDSonchus oleraceusJon P. Rebman140672008-2-26 San DiegoCanon Marine Corps Base: Training Area Romeo 1 in the northwestern portion of base; San Onofre Mountains, along Horno Canon Road
    DAV353838DAVSonchus oleraceusE. M. Johnston140J1915 ButteButte County: Biggs.
    SD205513SDSonchus oleraceusJonathan K. Snapp-Cook1412008-5-24 San DiegoOtay Mountain NW side, Bureau of Land Management, canyon just W of Little Cedar Canon that begins at eastern end of Lower Otay Lake. Entered canyon by heading 2.5 miles SE on the dirt road starting at the yellow gate off Otay Lakes Road.
    SD184240SDSonchus oleraceusJon P. Rebman141152008-2-26 San DiegoCanon Marine Corps Base: Training Area Romeo 2 in the northwestern portion of base; coastal side of San Onofre Mountains, along Horno Canon Road
    SD184237SDSonchus oleraceusJon P. Rebman141262008-2-26 San DiegoCanon Marine Corps Base: Training Area Romeo 2 in the northwestern portion of base; coastal side of San Onofre Mountains, along Skyline Road towards the towers on top of San Onofre Mountain
    RSA731781RSASonchus oleraceusJ. P. Rebman141262008-2-26 San DiegoCanon Marine Corps Base: Training Area Romeo 2 in the northwestern portion of base; coastal side of San Onofre Mountain, along Sky Rd towards the towers on top of San Onofre Mountain. Square D2.
    UCR77139UCRSonchus oleraceusA.C. Sanders141261993-5-30 San BernardinoCornfield Spring Canon, W slope of Providence Mtns, 4 mi SE of Kelso; East Mojave Desert
    LA32076LASonchus oleraceusPeter H. Raven141651959-5-09 Los AngelesSanta Monica Mountains; Mulholland Hwy, 1 W of Las Virgenes Rd, Malibu Creek drainage
    JEPS30626UCJEPSSonchus oleraceusPeter H. Raven141651959-5-09 Los AngelesMulholland Hwy 1 mi w Las Virgenes Rd. (Malibu Creek drainage, Santa Monica Mountains); Santa Monica Mountains, Malibu Creek drainage
    UCR201922UCRSonchus oleraceusGeorge K. Helmkamp142352008-10-9 San Joaquinjunction of Collier Road and CA-88, 1.1 miles north of the junction of CA-12 and CA-8 NE of Lodi
    SD184239SDSonchus oleraceusJon P. Rebman142952008-4-3 San DiegoHellhole Canon Open Space Preserve: east of Valley Center and northeast of Lake Wohlford; southwest side of preserve near Canal Road
    LA32074LASonchus oleraceusHenry J. Thompson143461959-6-04 Los AngelesSanta Monica Mountains; Point Dume
    RSA127961RSASonchus oleraceusH. J. Thompson143461959-6-04 Los AngelesPoint Dume.
    CAS-BOT374616CASSonchus oleraceusThompson, Henry J.; Raven, Peter H.143461959-6-4 Los AngelesSanta Monica Mountains. Point Dume
    JEPS30646UCJEPSSonchus oleraceusPeter H. Raven, Henry J. Thompson143461959-6-04 Los AngelesPoint Dume Santa Monica Mountains, Point Dume
    SD184238SDSonchus oleraceusJon P. Rebman143632008-4-3 San DiegoHellhole Canon Open Space Preserve: east of Valley Center and northeast of Lake Wohlford; south-central portion of preserve, near old house foundation
    CDA0015245CDASonchus oleraceusG.F. Hrusa143761998-5-08 Contra CostaDow Chemical property at Pittsburg adjacent to shore of San Joaquin River. Sacramento Delta.
    SD220249SDSonchus oleraceusNancy Nenow14382010-8-28 San DiegoCleveland 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
    JEPS30659UCJEPSSonchus oleraceusPeter H. Raven, Henry J. Thompson144471959-9-18 Los AngelesUniversity of California, West Los Angeles Santa Monica Mountains, University of California, West Los A
    SD191831SDSonchus oleraceusJon Rebman144682008-4-9 ImperialFreeman Properties (Truckhaven): West of the Salton Sea, NW of Salton City, W of Hwy. 86; Section 9 (SP9), in Grave Wash, Site ENCFRU in arroyo bottom and surrounding embankments
    SD173959SDSonchus oleraceusGay Dorius1452005-3-17 San DiegoCity of San Diego (Clairemont); Frink Ave, 1/2 S of Clairemont Mesa Blvd; West mesa of EW leg of small isolated urban canyon, abutts to S side of Clairemont Mesa Blvd & 1&1/2 blks E of Genese Ave.,and runs behind the Boy's club.
    CAS-BOT374577CASSonchus oleraceusWilliamson, Mrs. W. J.1451919-5-21 TuolumneSpring Gulch near Bear Creek
    CAS-BOT374578CASSonchus oleraceusWilliamson, Mrs. W. J.1451919-5-21 TuolumneSpring Gulch near Bear Creek
    OBI145836OBISonchus oleraceusDavid J. Keil145091981-4-24 San Luis ObispoJctn of Shell Crk Rd and Calif hwy 58 S of Shandon
    UCR272637UCRSonchus oleraceusR.G. Swinney145872011-5-6 Los Angelesnorth of Glendora, Glendora Mountain summit along old fire break
    LA00638564LASonchus oleraceusPeter H. Raven146151959-10-10 Los AngelesSanta Monica Mountains; University of California, Los Angeles
    CAS-BOT423335CASSonchus oleraceusWilliams, A.; Darling, C.; Garcia, M.; Brostrom, R.; Juarez, L.; Juarez, A.146182014-4-26 MarinMount Tamalpais. Marin Municipal Water District lands: Across the bridge from Leo T. Cronin Fish Viewing Area, near gate along Lower Peters Dam Road.
    SD186692SDSonchus oleraceusJon P. Rebman146572008-4-21 San DiegoHauser Wilderness: Cleveland National Forest; W of Morena Reservoir, at Bronco Flats just S of Skye Valley Road
    CAS-BOT374665CASSonchus oleraceusKnight, Walter; Knight, Irja; Howell, John Thomas14661966-7-28 PlumasButterfly Botanical Area and Vicinity. In Butterfly Canyon
    SBBG118337SBBGSonchus oleraceusD. C. Estrella1472003-4-25 San DiegoW of Woodward Rd, near intersection with Propagation Rd, ca. 500 N of crossroads; Pt Loma Naval Facility
    SD158523SDSonchus oleraceusDinna C. Estrella1472003-4-25 San DiegoPoint Loma Naval Facility, SPAWAR. West of Woodward Rd., nearest cross street Propagation Rd. ca. 500 North of cross roads.
    SDSU15662SDSUSonchus oleraceusEstrella, Dinna C.1472003-4-25 San DiegoPoint Loma Naval Facility, SPAWAR. West of Woodward Rd., nearest cross street Propagation Rd. ca. 500 North of cross roads.
    OBI145825OBISonchus oleraceusDavid J. Keil147101981-5-16 San Luis ObispoArea around Arroyo de la Cruz near its crossing of hwy 1
    OBI145835OBISonchus oleraceusDavid J. Keil147351981-5-19 San Luis ObispoIndian Knob. Upper slopes of Indian Knob
    JOTR29401JOTRSonchus oleraceusLa Doux, Tasha14782006-5-22 San BernardinoJoshua Tree National Park. Willow Hole
    DAV353806DAVSonchus oleraceusDonald R. Bissing1481973-6-02 Los AngelesLos Angeles County: Evey Canon, San Gabriel Mountains. 1.4 miles from canyon mouth.
    SBBG151060SBBGSonchus oleraceusM. Daily1491979-7-28 VenturaSan Nicolas Island: Celery Cyn
    SD169863SDSonchus oleraceusNuri Pierce1492005-3-6 San DiegoLakeside, East end of El Monte Road, El Capitan Reservoir; North facing road cut 0.5 mile W of the dam wall.
    SD210795SDSonchus oleraceusCarolyn Martus1492006-5-24 San DiegoCanon, 100 W of the intersection of Las Pulgas and Stuart Mesa Road, « mi E of Interstate 5.
    SD169867SDSonchus oleraceusJeannie Gregory14922005-6-11 San DiegoAlpine, Wright's Field Preserve, 1 mile S of Interstate 8 on Tavern Road; E of Joan MacQueen Middle School
    SD214840SDSonchus oleraceusReginald Durant152008-6-22 San DiegoCleveland National Forest, along Cutca Trail, 4.5 miles SW of town of Auanga (Highway 79), 1.47 miles NE of Morgan Hill.
    RSA474122RSASonchus oleraceusChristopher Davidson151965-4-06 Santa Clara26 W Fremont, Los Altos Hills.
    RSA0045285RSASonchus oleraceusVirginia Guthrie151983-5-07 San DiegoIn University City on the southwest corner of Genesee Ave. and La Jolla Village Dr.
    SDSU14540SDSUSonchus oleraceusReiser, Craig H.15-VI-891989-6-15 San DiegoCamp Joseph Pendleton MCB. San Diego County, California. Base Section: Charlie.
    SD169864SDSonchus oleraceusNuri Pierce1502005-3-6 San DiegoLakeside, East end of El Monte Road, El Capitan Reservoir; North facing road cut 0.5 mile W of the dam wall.
    RSA223963RSASonchus oleraceusCherie L. Wetzel1501967-9-30 AlamedaAlong sandbag levee. Niles Canon and vicinity
    CAS-BOT374584CASSonchus oleraceusWetzel, Cherie L.1501967-9-30 AlamedaNiles Canyon and Vicinity
    UCR271058UCRSonchus oleraceusR.G. Swinney150012011-6-6 Los AngelesCharlton Flats (= Pine Flats), 13.8 miles east of jct. of Angeles Crest and Angeles Forest highways
    DAV353810DAVSonchus oleraceusD. S. Park151--12010-7-4 MontereyMonterey County: Monterey, near gas station before entrance to 17 Mile Rd. Small population.
    DAV353809DAVSonchus oleraceusD. S. Park151--22010-7-4 MontereyMonterey County: Monterey, near gas station before entrance to 17 Mile Rd. Small population.
    DAV353807DAVSonchus oleraceusD. S. Park151--32010-7-4 MontereyMonterey County: Monterey, near gas station before entrance to 17 Mile Rd. Small population.
    DAV353805DAVSonchus oleraceusD. S. Park151--42010-7-4 MontereyMonterey County: Monterey, near gas station before entrance to 17 Mile Rd. Small population.
    SD170941SDSonchus oleraceusJeannie Gregory15192005-6-16 San DiegoAlpine, Viejas Mountain on S slope, « mi N of the West Willows (exit 33) overpass on I 8, 1.5 m E of Victoria Drive.
    CHSC6086CHSCSonchus oleraceusB. Wilson1531968-4-17 ButteNE of Greenhouse, CSC campus.
    SD187256SDSonchus oleraceusJon P. Rebman153412008-5-30 San DiegoHauser 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
    JOTR31031JOTRSonchus oleraceusLa Doux, Tasha15352010-4-27 San BernardinoJoshua Tree National Park. Oasis of Mara, Park Head Quarters, survey surrounding administrative buildings
    UC2028518UCJEPSSonchus oleraceusBarbara Ertter154281996-11-24 Contra CostaWest side of Mount Diablo, Pine Pond along Stage Road in Pine Canon.
    DAV353817DAVSonchus oleraceusLinda M. Barker15461976-6-01 HumboldtHumboldt County: Lanphere-Christensen Dunes. 3 miles west of Arcata.
    HSC40944HSCSonchus oleraceusLinda M. Barker15461976-6-01 HumboldtLanphere-Christensen Dunes, 3 W of Arcata.
    SD190456SDSonchus oleraceusJon P. Rebman154992008-6-4 San DiegoSanta Margarita Mountains: Cleveland National Forest; east of the border with Canon Marine Corps Base; along the forest service road that runs on the east side of the mountains
    SD248962SDSonchus oleraceusNancy Nenow15532011-1-22 San DiegoLa Jolla; about 300 yards SW of intersection Expedition Way and N Torrey Pines Road; west of Torrey Pines Road along walking trail on open mesa.
    DAV353835DAVSonchus oleraceusM. Tu1561998-11-05 SacramentoSacramento Co.: Cosumnes River Preserve Plant Inventory - Seed Bank Plants.
    SD190980SDSonchus oleraceusMargaret R. Mulligan15642007-3-15 San DiegoCanon Marine Corps Base, Skull Canon in the Uniform Training Area. 0.6 W of I-5 at La Flores (41 Area).
    SBBG167520SBBGSonchus oleraceusKristen Hasenstab-Lehman15642018-5-26 VenturaSan Nicolas Island: northern escarpment, 500 m northwest of airfield, on eroding flats 100 m S of Beach Rd.
    JROH1261JROHSonchus oleraceusJohn H. Thomas156561970-7-05 San MateoJasper Ridge Biological Preserve, Stanford University
    PPWD1248PPWDSonchus oleraceusP. Rockwood15682016-6-24 SonomaPepperwood Preserve - In Tower in the saddle area; on steep N-facing slope in mature mixed evergreen forest; under Douglas-fir with CA bay and some Oregon oak; in full shade.
    SD190457SDSonchus oleraceusJon P. Rebman157302008-6-25 San DiegoCanon Marine Corps Base: south of Stagecoach Road and north of the airstrip along Vandegrift Blvd.; in the Santa Margarita River bed
    CHSC102501CHSCSonchus oleraceusLowell Ahart157912009-5-30 ButteBy a small rock about 50 yards south of the fence and about 120 yards east of Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) west of Highway 32, about 10 miles northeast of Chico. T2 N R02E S35 near center, upper half
    UC1070278UCJEPSSonchus oleraceusN. K. Carlson1581936-3-19 San Luis Obispo1.9 mi ese Picacho; Arroyo Grande Quad.
    SD177288SDSonchus oleraceusLarry Hendrickson15822006-5-25 San DiegoAnza-Borrego Desert State Park. Grapevine Canon, 0.3 km east of Angelina Spring where road climbs up above drainage on east side of road.
    UCR233207UCRSonchus oleraceusGeorge K. Helmkamp158342010-4-7 San JoaquinCollier Road, 0.1 mile west of its junction with CA-88, 1.83 NE (27 ° ) of Clements
    UCR242777UCRSonchus oleraceusGeorge K. Helmkamp158632010-4-14 SolanoPitt School Road, 3.8 miles south of its junction with I-80 and south of Dixon
    RSA0114808RSASonchus oleraceusRichard G. Swinney158952011-10-25 Los AngelesSan Gabriel Mountains: south end of Coldbrook Campground, along Coldbrook Cr., from 50 meters south to 100 meters north of Hwy 39.; Crystal Lake 7.5 Quad
    UCSB028300UCSBSonchus oleraceusMartin Fletcher1591979-10-11 Santa BarbaraOn the rim of the Sacate Creek outlet
    RSA474096RSASonchus oleraceusGary D. Wallace15911979-4-03 VenturaSan Nicolas Island, level ground near Naval Airfield hangers
    OBI145814OBISonchus oleraceusLynne D. Althouse161977-3-31 San Luis ObispoWolfe's Horse ranch near San Luis High School
    UCR227088UCRSonchus oleraceusJim Andre160872011-3-17 San BernardinoDead Mountains, in deep canyon c. 2 miles east northeast of Manchester Peak, 2.5 miles west of Needles Hwy
    RSA0093419RSASonchus oleraceusBonnie C. Templeton16101931-7-06 AlamedaBerkeley.
    SD163809SDSonchus oleraceusMaryAnn Brooks-Gonyer1622005-5-6 San DiegoApprox. 7 miles north of Escondido on Champagne Blvd, about 1/10 mile south of Lawrence Welk Drive
    UCSB_SCIRH00116UCSBSonchus oleraceusMarla Daily1621976-9-17 Santa BarbaraValley Anchorage, Santa Cruz Island.
    CAS-BOT374633CASSonchus oleraceusPenalosa, Javier16201961-6-7 MarinTiburon Peninsula. West of Marin Country Day School
    RSA474127RSASonchus oleraceusGary D. Wallace16401979-4-03 VenturaSan Nicolas Island, near water tank seepage area northwest end of mesa
    DAV353816DAVSonchus oleraceusLinda M. Barker16441976-7-05 HumboldtHumboldt County: Lanphere-Christensen Dunes. 3 miles west of Arcata.
    HSC39938HSCSonchus oleraceusLinda M. Barker16441976-7-05 Humboldt3 W of Arcata
    SD199878SDSonchus oleraceusJon Rebman164452009-3-12 ImperialFreeman Properties (Truckhaven): West of the Salton Sea, NW of Salton City, W of Hwy. 86; Section 6 (SL6), Verbena Wash, Site PHAMIN in rocky arroyo and surrounding rocky hillsides & mesas
    CAS-BOT374638CASSonchus oleraceusPenalosa, Javier; Howell, J. T.16461961-6-7 MarinTiburon Peninsula. West of Marin Country Day School
    JEPS58909UCJEPSSonchus oleraceusJavier Penalosa, J. T. Howell16461961-6-07 Marinw Marin Country Day School (Tiburon Peninsula); Tiburon Peninsula
    UCR280569UCRSonchus oleraceusR.G. Swinney164902014-5-13 Los AngelesGlendora, west fork of Hook Cyn., c. 0.4 km north of Sierra Madre Av., 100-300 m west of entrance to Church of the Open Door, Colby Fire burn of Jan. 2014
    SBBG113003SBBGSonchus oleraceusK. McEachern164a1993-4-28 San DiegoCabrillo National Monument; Point Loma, N end of park immediately N of maintenance yard
    UCSB_SCIRH00114UCSBSonchus oleraceusMarla Daily1651976-9-17 Santa BarbaraBeach spring at , Valley Anchorage, Santa Cruz Island.
    CHSC8560CHSCSonchus oleraceusM. MacArthur1651968-6-12 ButteCa. 5 W of Biology Stockroom in Life Science bld., Chico State College campus.
    SD199877SDSonchus oleraceusJon Rebman165002009-3-23 ImperialFreeman Properties (Truckhaven): West of the Salton Sea, W of Salton City, Along Hwy S22, section 29 (SP29), Site LANSET on mesa and surrounding mud and cobble hillsides
    UCR281363UCRSonchus oleraceusR.G. Swinney165162014-5-15 Los AngelesAzusa Peak, 0.06 mile south of Glendora Ridge Motorway, 1.34 miles due east of Hwy. 39, 0.15 mile east of Garcia Trailhead
    DAV353820DAVSonchus oleraceusFrederica Bowcutt16551993-6-25 SacramentoSacramento County: 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 Sacramento River Delta, N of the Delta Cross Channel. Along perimeter of island owned by Asian City Corp. E and N of side slough off of Snodgrass Slough.
    JEPS37525UCJEPSSonchus oleraceusWillis L. Jepson165551934-4-08 SolanoLittle Oak , Little Oak (Vacaville)
    CATA848CATASonchus oleraceusMark L. Hoefs16561992-3-29 Los AngelesSanta Catalina Island: Above upper circle of Las Lomas Drive, Avalon
    UCR281610UCRSonchus oleraceusR.G. Swinney165752014-5-19 Los AngelesGlendora, on ridge between west fork of Engelwild Cyn. and Glenco Heights Cyn., 0.2 miles WNW of Engelwild Debris Basin, 0.72 air-miles SSE of Glendora Ridge Motorway
    JEPS18665UCJEPSSonchus oleraceusErnest C. Twisselmann16581954-11-09 KernBuena Vista Lake Bed Western San Joaquin Valley, Temblor Rsnge, Buena Vista Lake (Temblor Range, Western San Joaquin Valley)
    UCR281336UCRSonchus oleraceusR.G. Swinney166282014-5-21 Los AngelesGlendora, along ridgetop and north side of ridge due south of the west fork of Harrow Cyn., north of end of Glendora Ave., along historic (abandoned early '7 Whitcomb Trail
    CATA855CATASonchus oleraceusMark L. Hoefs16641992-3-30 Los AngelesSanta Catalina Island: Little Harbor
    CAS-BOT374642CASSonchus oleraceusHardham, Clare B.166591968-6-10 Mendocino2 miles north of Point Arena between Coast Highway and the beach
    RSA0119941RSASonchus oleraceusR. G. Swinney166682014-5-27 Los AngelesSan Gabriel Mountains; Glendora, ridge between east and north forks of Hook Cyn., c. 400 m. south of Glendora Ridge Mtwy. on s.-facing slope at 15-40 % grade.; GlendoraC. 200 m. due n. of Church of the Open Door and n. and e. of Hook Cyn. debris basin.
    UCR281427UCRSonchus oleraceusR.G. Swinney166682014-5-27 Los AngelesGlendora, ridge between east and north forks of Hook Cyn., c. 400 m south of Glendora Ridge Mtwy. & 200 m north of Church of the Open Door, NE of Hook Cyn. debris basin
    CHSC103987CHSCSonchus oleraceusLowell Ahart166712010-5-14 ButteOn the south side of a trail, about 1/2 mile west of the entrance to the Disc Golf Area, west of Highway 32. Upper Bidwell Park, about 4 1/2 miles (air) northeast of Chico. T2 N R02E S1 W1/4
    JEPS117702UCJEPSSonchus oleraceusLowell Ahart166712010-5-14 ButteOn the south side of a trail, about 1/2 mile west of the entrance to the Disc Golf Area, west of Highway 32. Upper Bidwell Park, about 4 1/2 miles (air) northeast of Chico
    SD200347SDSonchus oleraceusJon Rebman16673b2009-3-24 ImperialFreeman Properties (Truckhaven): West of the Salton Sea, NW of Salton City, W of Hwy. 86; Section 8 (SL8), near north fork of Big Wash, Site TRICAL on mesas and surrounding hillsides
    JEPS84553UCJEPSSonchus oleraceusJohn W. Willoughby16681976-5-06 SolanoMix Canon Vaca Mountains, Mix Canon
    SD205512SDSonchus oleraceusBeverly Pecunia1672007-10-18 San DiegoCity of Escondido, 4.5 NE of, just N of Bottle Peak, along N shoreline of Lake Wohlford
    DAV353824DAVSonchus oleraceusMary M. Hektner1671974-7-25 SonomaSonoma County: Galleon's Reach, Unit 3 Owner's Map, Sea Ranch, near State Highway 1.
    SD190979SDSonchus oleraceusMargaret R. Mulligan16792007-3-26 San DiegoCanon Marine Corps Base, White Beach Training Area, ca. 0.8 mi S of 41 Area (Las Flores), ca. 1 W of Shingle Bluff, E of I-5.
    CDA0007871CDASonchus oleraceusM. Mulligan16792007-3-26 San DiegoCanon Marine Corps Base, White Beach Training Area, ca. 0.8 mile south of 41 Area (Las Flores), ca. 1 mile northwest of Shingle Bluff, east of I-5. Square: F4.
    RSA715871RSASonchus oleraceusSarah J. De Groot16882003-3-18 San BernardinoBLMWhipple Mountains: Tamarisk grove along Havasu Palms road.
    UCR289664UCRSonchus oleraceusR.G. Swinney169672015-3-28 Los AngelesGlendora, Big Dalton Canon Wilderness Park, Wren Cyn. on Wren-Meacham Trail, 0.2-0.4 mile east of Big Dalton Cyn. Flood Control Channel
    RSA0196600RSASonchus oleraceusR. G. Swinney169672015-3-28 Los AngelesSan Gabriel Mountains: Glendora, Big Dalton Wilderness Park, Wren Cyn. on Wren-Meacham Trail, 0.2-0.4 mile east of Big Dalton Canon. Flood Control Channel.; Glendora 7.5
    SD195773SDSonchus oleraceusJon P. Rebman170462009-4-15 San DiegoCanon Marine Corps Base: Papa 3 Training Area in the northwestern portion of base and on the east side of the San Onofre Mountains; along Horno Canon Road; burned in Horno Fire
    JROH1262JROHSonchus oleraceusJohn H. Thomas170921974-4-06 San MateoJasper Ridge Biological Preserve, Stanford University; west side of dam
    SBBG151087SBBGSonchus oleraceusPeter H. Raven171391962-4-09 Los AngelesSan Clemente Island: near barracks, Wilson Cove
    RSA151208RSASonchus oleraceusP. H. Raven171391962-4-09 Los AngelesNear barracks, Wilson Cove, San Clemente Island
    UC1215136UCJEPSSonchus oleraceusPeter H. Raven171391962-4-09 Los Angelesnear barracks (Wilson Cove, San Clemente Island); San Clemente Island, Wilson cove
    JEPS84554UCJEPSSonchus oleraceusJohn W. Willoughby17181976-5-18 Solanonear Mix Canon Road (Mix Canon, Vaca Mountains); Vaca Mountaina, Mix Canon
    SD251011SDSonchus oleraceusJerry Green1722011-3-1 San DiegoRancho Penasquitos; Black Mountain; 0.34 miles NE of junction Laurentian Dr. & Mediatrice Ln.
    CAS-BOT374559CASSonchus oleraceusBreedlove, D. E.172931970-3-29 InyoIn Surprise Canyon between Ballarat and Panamint City. Panamint Mountains
    CHSC107249CHSCSonchus oleraceusLowell Ahart173602011-6-3 ButteWood chipped planter area between Bidwell Mansion parking area and Gateway Science Museum, Chico. T2 N R01E S2 W1/4
    JEPS118346UCJEPSSonchus oleraceusLowell Ahart173602011-6-3 ButteWood chipped planter area between Bidwell Mansion parking area and Gateway Science Museum, Chico
    CHSC107250CHSCSonchus oleraceusLowell Ahart17360A2011-6-3 ButteWood chipped planter area between Bidwell Mansion parking area and Gateway Science Museum, Chico. T2 N R01E S2 W1/4
    CHSC107245CHSCSonchus oleraceusLowell Ahart173682011-6-5 ButteIn pots or garden, Peter Ahart ranch, about 1 1/2 miles north and 1 mile east of Honcut, about 12 miles south of Oroville. T1 N R04E S04 SE1/4
    JEPS118037UCJEPSSonchus oleraceusLowell Ahart173682011-6-5 ButteIn pots or garden, Peter Ahart ranch, about 1 1/2 miles north and 1 mile east of Honcut, about 12 miles south of Oroville
    CDA0042842CDASonchus oleraceusL. Ahart173682011-6-5 ButteIn pots or garden, Peter Ahart Ranch, about 1 1/2 miles north and 1 mile east of Honcut, about 12 miles south of Oroville.
    SD197202SDSonchus oleraceusJon P. Rebman173822009-5-6 San DiegoCanon Marine Corps Base: Alpha One Training Area in the northwestern portion of base; north of Basilone Road along San Juan Road and in the adjacent riverbed of Jardine Canon
    SD184682SDSonchus oleraceusJudy Carlstrom1742006-5-30 San DiegoEscondido. Riparian area west of Northwest Parking Lot in Jesmond Dene Park located on North Broadway.
    UCR290713UCRSonchus oleraceusR.G. Swinney174842015-7-16 Los AngelesSan Dimas Experimental Forest, Johnstone Peak summit
    RSA0346134RSASonchus oleraceusR. G. Swinney174842015-7-16 Los AngelesSan Gabriel Mountains: San Dimas Experimental Forest, Johnstone Peak summit. Glendora 7.5' Q.
    UCSB028451UCSBSonchus oleraceusWayne R. Ferren17561979-3-22 Santa BarbaraMargin of central portion of Apple Rd., Carpinteria Salt Marsh, Carpinteria
    SD199058SDSonchus oleraceusJohn LaGrange1762007-5-13 San DiegoCleveland National Forest, northwest of Black Mountain, Lusardi Canon Truck Trial road near intersection of the road to Patton Load Mine, about 3.75 miles NNE by road from intersection of Lusardi Truck Trail and Pamo Road.
    JEPS37531UCJEPSSonchus oleraceusWillis L. Jepson176051936-6-02 Napabanks Napa River (St. Helena); banks Napa River, St. Helena
    JEPS111647UCJEPSSonchus oleraceusA. G. Murdock1772003-9-12 SolanoMare Island
    UCSB028452UCSBSonchus oleraceusWayne R. Ferren17701979-3-22 Santa BarbaraW of N end of Apple Rd., Carpinteria Salt Marsh, Carpinteria
    JOTR30283JOTRSonchus oleraceusLa Doux, Tasha17792007-5-31 Riverside