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==>Ceanothus oliganthus.
    Synonyms were NOT found.

    You searched for: Ceanothus oliganthus

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      F CCH1_AIDherbscientific namecoll. namecoll. num.formatted datecountylocality
    SBBG168348SBBGCeanothus oliganthus var. oliganthusHenry M. Pollard1963-12-07 VenturaLos Padres National Forest; Nordhoff Pk., above Wheeler's Hot Springs, on Forest Service Rd
    SBBG169233SBBGCeanothus oliganthus var. sorediatusL. R. Abrams1909-3-06 Santa BarbaraSanta Ynez Mtns: Mission Cyn
    SBBG167221SBBGCeanothus oliganthus var. oliganthusRalph Hoffmann1925-5-23 Santa BarbaraSanta Ynez Mtns: Franklin Trail, Carpinteria
    SBBG169228SBBGCeanothus oliganthus var. sorediatusCarol Bornstein, E. Collins1996-4-05 Santa BarbaraSanta Ynez Mtns: Tequepis Cyn Trail about 0.75 mi from trailhead
    SBBG170294SBBGCeanothus oliganthus var. oliganthusHenry M. Pollard1971-2-10 VenturaLos Padres National Forest; Forest Service Rd from Wheeler's Hot Springs to Nordhoff Pk
    SBBG114072SBBGCeanothus oliganthus var. oliganthusCarol Bornstein2001-4-24 VenturaYerba Buena Rd, 9 mi E of jct with St Hwy 1; Santa Monica Mtns
    SBBG167223SBBGCeanothus oliganthus var. oliganthusP. Bartholomew1939-4-14 Santa BarbaraSanta Ynez Mtns: Juncal Reservoir
    SBBG167222SBBGCeanothus oliganthus var. oliganthusP. Bartholomew1938-8-17 Santa BarbaraSanta Ynez Mtns: Los Padres National Forest; upper Santa Ynez River, Los Padres Nat Forest
    SBBG168335SBBGCeanothus oliganthus var. oliganthusHenry M. Pollard1945-1-13 VenturaFoothill Trail
    SBBG167227SBBGCeanothus oliganthus var. oliganthusM. N. Ackley1929-4-1 Los AngelesLa Crescenta
    SBBG169219SBBGCeanothus oliganthus var. sorediatusMrs. R. W. Summers1886-2-28 San Luis Obisposandhills by sea near Arroyo Grande
    SBBG167225SBBGCeanothus oliganthus var. oliganthusHenry M. Pollard1959-4-15 Santa BarbaraSanta Ynez Mtns: Los Padres National Forest; Camino Cielo on N side of La Cumbre Pk
    SBBG167220SBBGCeanothus oliganthus var. oliganthusCarol Bornstein, E. Collins1992-4-14 San DiegoOtay Mtn Rd from Thousand Trails Camp
    SBBG170297SBBGCeanothus oliganthus var. oliganthusHenry M. Pollard1963-4-05 Venturarailroad near Devil's Gulch; Oak View
    SBBG168344SBBGCeanothus oliganthus var. oliganthusM. Van Rensselaer1938-4-21 Montereyeast of Santa Cruz
    SBBG170296SBBGCeanothus oliganthus var. oliganthusHenry M. Pollard1963-12-19 VenturaLos Padres National Forest; Forest Service Rd, Wheeler Hot Springs to Nordhoff Pk
    SBBG167191SBBGCeanothus oliganthus var. sorediatusRalph N. Philbrick1974-5-29 San Luis Obispoabout 0.5 W of Cuesta Summit and US Hwy 101
    SBBG169227SBBGCeanothus oliganthus var. sorediatusM. Van Rensselaer1938-4-21 Santa Cruzeast of Santa Cruz, Santa Cruz Mts
    SBBG168341SBBGCeanothus oliganthus var. oliganthusM. Van Rensselaer1935-7-09 Santa BarbaraSanta Ynez Mtns: Tunnel Portal, Mission Cyn
    SBBG168313SBBGCeanothus oliganthus var. orcuttiiL. Rowntree1929-5-10 San DiegoCuyamaca Mtn
    SBBG169226SBBGCeanothus oliganthus var. sorediatusM. Van Rensselaer1938-4-21 Santa Cruzeast of Santa Cruz
    SBBG169221SBBGCeanothus oliganthus var. sorediatusRalph Hoffmann1931-7-21 MontereyLos Padres National ForestBig Sur
    SBBG168318SBBGCeanothus oliganthus var. orcuttiiM. Van Rensselaer1936-7-08 San DiegoPalomar Mtn
    SBBG169237SBBGCeanothus oliganthus var. sorediatusCarol Bornstein, E. Collins2003-6-18 San DiegoQuesthaven Rd, 2.4 W of jct with Harmony Rd
    SBBG168349SBBGCeanothus oliganthus var. oliganthusHenry M. Pollard1956-2-04 VenturaLos Padres National Forest; Forest Service Rd from Wheeler's to Nordhoff Peak
    SBBG169223SBBGCeanothus oliganthus var. sorediatusP. Bartholomew1939-3-29 Santa BarbaraLos Padres National Forest; Hill across crk from Mono Guard Station
    SBBG168321SBBGCeanothus oliganthus var. sorediatusCarol Bornstein, E. Collins1992-4-14 San DiegoOtay Mtn Rd from Thousand Trails Camp
    SBBG167219SBBGCeanothus oliganthus var. oliganthusP. Bartholomew1939-4-14 Santa BarbaraSanta Ynez Mtns: Los Padres National Forest; above Juncal Ford
    SBBG168336SBBGCeanothus oliganthus var. oliganthusA. F. Howland, M. Darsie1931-4-02 VenturaVentura County [locality not specified]
    SBBG168342SBBGCeanothus oliganthus var. oliganthusRalph Hoffmann1929-3-14 Santa BarbaraSanta Ynez Mtns: Mission Cyn
    SBBG169210SBBGCeanothus oliganthus var. sorediatusM. Van Rensselaer1938-4-21 Santa CruzSanta Cruz Mtns
    SBBG168312SBBGCeanothus oliganthus var. orcuttiiF. E. Clements1927-3-04 San DiegoBarrett Lake
    SBBG169208SBBGCeanothus oliganthus var. sorediatusM. Van Rensselaer1938-4-26 NapaWooden Valley Grade
    SBBG168334SBBGCeanothus oliganthus var. oliganthusRalph Hoffmann1927-6-03 VenturaLyons Camp, Ojai [historic site]
    SBBG170293SBBGCeanothus oliganthus var. oliganthusHenry M. Pollard1971-2-10 VenturaLos Padres National Forest; Forest Service Rd from Wheeler's Hot Springs to Nordhoff Pk
    SBBG170292SBBGCeanothus oliganthus var. oliganthusHenry M. Pollard1964-3-11 VenturaFoothill Trail
    SBBG169220SBBGCeanothus oliganthus var. sorediatusM. Van Rensselaer1938-4-25 San Luis ObispoLos Padres National Forest; Cuesta Pass
    SBBG169222SBBGCeanothus oliganthus var. sorediatusM. Van Rensselaer1935-7-07 Santa BarbaraSanta Ynez Mtns: N side, W of La Cumbre Peak
    SBBG168350SBBGCeanothus oliganthus var. oliganthusRalph Hoffmann1927-6-03 VenturaLyons Camp, Ojai [historic site]
    SDSU10208SDSUCeanothus oliganthus var. oliganthusYoungberg, Florence1932-5-03 San DiegoMuzzey Grade.
    SDSU10209SDSUCeanothus oliganthus var. oliganthusYoungberg, Florence1932-3-24 San DiegoBanner Grade.
    SDSU10211SDSUCeanothus oliganthus var. oliganthusThompson, D.1964-7-16 San DiegoEl Canon Mtn. Boulder Ranch.
    SDSU10213SDSUCeanothus oliganthus var. oliganthusFrazier, Chris1989-2-26 San Diego
    SDSU10310SDSUCeanothus oliganthusCook, Lorenzo1932-4-01 Los AngelesArroyo Seco Canon.
    SJSU56SJSUCeanothus oliganthus var. sorediatusC.D. Duncan1926-3-13 Santa ClaraCupertino
    SJSU10897SJSUCeanothus oliganthus var. sorediatusS.D. Hillygus1958-5-08 Santa Cruzby Hwy 17 10 W of Los Gatos
    SJSU10909SJSUCeanothus oliganthus var. sorediatusC.E. Lindquist1958-6-05 Santa ClaraSanta Isabella Valley E of Mt Hamilton, Mt Hamilton Range
    SJSU10911SJSUCeanothus oliganthus var. sorediatusG.A. Kattenhorn1967-3-24 Los AngelesLittle Dalton Cr, N of Glendora, San Gabriel Mts
    SJSU10914SJSUCeanothus oliganthus var. sorediatusR.M. Godon1958-4-08 Santa ClaraFairview Ranch 2 W of Saratoga
    UCSB016365UCSBCeanothus oliganthus subsp. oliganthusProctor, Donald1962-3-18 OrangeSilverado canyon, Santa Ana Mts.
    UCSB016381UCSBCeanothus oliganthus subsp. sorediatusVan Rensselaer, Maunsell1938-4-21 Santa CruzSanta Cruz Mtns., east of Santa Cruz
    CHSC70041CHSCCeanothus oliganthus var. sorediatusJ. R. McFarland1997-4-10 HumboldtKing Range National Conservation Area. 3.7 miles north on King Range road from Shelter cove road.
    CHSC10678CHSCCeanothus oliganthus var. sorediatusLowell Ahart1965-4-15 ButteRobinson Mill Road.
    PGM3742PGMCeanothus oliganthus var. sorediatusYadon, Vern1995-5-04 MontereySierra de Salinas, Mt Toro summit Area, Dorrance Ranch S side
    PGM115PGMCeanothus oliganthus var. sorediatusYadon, Vern1960-4-04 MontereySierra de Salinas, Pine Cyn Rd S of Salinas, Off River Rd
    PGM116PGMCeanothus oliganthus var. sorediatusYadon, Vern1960-4-04 MontereySierra de Salinas, Pine Cyn Rd S of Salinas, Off River Rd
    PGM4882PGMCeanothus oliganthus var. oliganthusYadon, Vern2001-5-25 MontereySanta Lucia Mountains, Coast Ridge Garrapata Cr inland fr, Mtn S from Palo Corona Ranch
    PGM4909PGMCeanothus oliganthus var. oliganthusYadon, Vern2000-7-28 MontereySanta Lucia Mountains, Palo Corona Ranch Gunsight addition, Palo Colorado Canon inland from 3000' el
    PGM6740PGMCeanothus oliganthus var. sorediatusHowitt, Beatrice F1956-5-12 MontereySanta Lucia Mountains, Arroyo Seco Camp to Escondido Cp, Roadside between camps
    PGM6741PGMCeanothus oliganthus var. sorediatusHowitt, Beatrice F1959-4-22 MontereySanta Lucia Mountains, Palo Colorado Canon Rd, (Rte to Bouchers Gap)
    PGM7216PGMCeanothus oliganthus var. oliganthusYadon, Vern2003-3-31 MontereySanta Lucia Mountains, Palo Corona Ranch Gunsight, Entry to Gunsight on ridge
    CLARK-A1528-799CLARKCeanothus oliganthusDave Cerf1971-4-10 San DiegoRainbow
    CLARK-A1528-3914CLARKCeanothus oliganthus var. orcuttiiCameron Duncan1966-3-13 San DiegoEscondido
    UC1602804UCJEPSCeanothus oliganthus var. sorediatusunknown1889-5-01 Santa Claranear Saratoga; near Saratoga
    UC125867UCJEPSCeanothus oliganthus var. oliganthusAlice Eastwood1908-5-16 Santa BarbaraMission Canon
    UC79785UCJEPSCeanothus oliganthus var. oliganthusFrank W. Hubby1896-2-22 Santa BarbaraMission Canon, Santa Barbara
    UC79852UCJEPSCeanothus oliganthus var. oliganthusNuttall2002-4-10 Santa Barbarain mounains
    UC191518UCJEPSCeanothus oliganthus var. oliganthusT. S. Brandegee1894-4-01 San DiegoRamona
    UC79849UCJEPSCeanothus oliganthus var. sorediatusKatharine Brandegee1890-5-01 Marinsummit of Tamalpais
    UC338502UCJEPSCeanothus oliganthus var. sorediatusLemmon1889-1-01 Venturanear original locality
    UC338453UCJEPSCeanothus oliganthus var. sorediatusE. L. Greene1889-3-30 MarinMt. Tamalpais
    UC18376UCJEPSCeanothus oliganthus var. oliganthusC. A. Purpus1898-5-01 San DiegoJulian
    UC870607UCJEPSCeanothus oliganthus var. oliganthusC. Epling, Wm. Robison1932-3-31 San DiegoBarrett
    UC18412UCJEPSCeanothus oliganthus var. sorediatusWillis L. Jepson1893-11-01 Marinnear Mill Valley (Mt. Tamalpais); Mt. Tamalpais
    UC79789UCJEPSCeanothus oliganthus var. oliganthusFrank W. Hubby1896-3-21 San BernardinoSan Antonio Mts.
    UC297939UCJEPSCeanothus oliganthus var. oliganthusunknown1937-6-26 Unknown
    UC423105UCJEPSCeanothus oliganthus var. oliganthusMrs. Brandegee1909-4-01 San DiegoDescanso Grade
    UC191512UCJEPSCeanothus oliganthus var. sorediatusC. C. Parry1888-1-01 San FranciscoSan Francisco
    UC440446UCJEPSCeanothus oliganthus var. oliganthusC. Epling, L. Ellison1929-4-14 VenturaLower Sespe Creek Santa Barbara National Forest
    UC870654UCJEPSCeanothus oliganthus var. sorediatusE. L. Breton1908-4-01 Santa ClaraSan Francisquito Creek near Palo Alto; San Francisquito Creek near Palo Alto
    UC63852UCJEPSCeanothus oliganthus var. oliganthusH. M. Hall1899-5-28 San DiegoBanner
    UC79788UCJEPSCeanothus oliganthus var. oliganthusKatharine Brandegee1889-5-01 San DiegoRamona
    UC79851UCJEPSCeanothus oliganthus var. sorediatusKatharine Brandegee1890-4-01 MarinLower slopes of Tamalpais
    UC455337UCJEPSCeanothus oliganthus subsp. sorediatusE. P. Unangst1907-4-03 San Luis ObispoCuesta
    UC870653UCJEPSCeanothus oliganthus var. sorediatusChester Dudley1937-5-01 San Luis ObispoCuesta Pass
    UC18324UCJEPSCeanothus oliganthus var. sorediatusAlice Eastwood1896-4-01 MarinLake Lagunitas
    UC423086UCJEPSCeanothus oliganthus var. sorediatusKatharine Brandegee1905-6-01 MarinTamalpais
    UC672051UCJEPSCeanothus oliganthus var. sorediatusEvelyn Hart Nelson1940-4-20 Santa ClaraLoma Prieta Santa Cruz Mountains
    JEPS42327UCJEPSCeanothus oliganthus var. sorediatusS. B. Parish1888-5-05 San BernardinoMill Creek San Bernardino Mts.
    UC18423UCJEPSCeanothus oliganthus var. sorediatusWillis L. Jepson1893-6-15 SolanoGates Canon
    UC297934UCJEPSCeanothus oliganthus var. oliganthusunknown1928-6-8 Unknown
    UC18372UCJEPSCeanothus oliganthusDr. A. Davidson1895-1-01 Los Angeles
    UC423114UCJEPSCeanothus oliganthus var. oliganthusKatharine Brandegee1906-3-04 San DiegoUopper end Ramona Grade
    UC455425UCJEPSCeanothus oliganthus var. sorediatusE. P. Unangst1907-4-03 San Luis ObispoCuesta
    UC79850UCJEPSCeanothus oliganthus var. sorediatusKatharine Brandegee1890-4-01 Marinlower slopes of Tamalpais
    JEPS42415UCJEPSCeanothus oliganthus var. sorediatusFrank W. Peirson1925-4-10 Orangealong rd Silverado Canon
    UC1071163UCJEPSCeanothus oliganthus var. oliganthusA. Lewis1934-2-01 Los AngelesPacoima Canon San Fernando quad., Angeles National Forest
    UC1535384UCJEPSCeanothus oliganthus var. sorediatusDave Hawks1987-3-02 Riversides of Hemet (intersection of Palm Ave. and Saddle Ridge Trail.)
    UC18468UCJEPSCeanothus oliganthus var. sorediatusState Survey1800-1-01 Unknown
    UC18424UCJEPSCeanothus oliganthus var. sorediatusWillis L. Jepson1892-3-01 SolanoVacaville
    UC79786UCJEPSCeanothus oliganthus var. oliganthusKatharine Brandegee1889-6-01 Santa BarbaraSanta Barbara
    UC942515UCJEPSCeanothus oliganthus var. oliganthusR. S. Beal, Jr.1948-4-05 Santa BarbaraSanta Barbara
    UC199233UCJEPSCeanothus oliganthus var. sorediatusV. King Chesnut1937-4-19 AlamedaOakland
    JEPS42113UCJEPSCeanothus oliganthusC. E. Hutchinson1892-7-20 Los AngelesSan Gabriel Mts., Mt. Wilson
    UC54829UCJEPSCeanothus oliganthus var. sorediatusMrs. R. W. Summers1886-1-01 San Luis ObispoArroyo Grande
    UC574961UCJEPSCeanothus oliganthus var. oliganthusCarl Epling, R. Fowler, K. Kneen1933-4-01 Los AngelesBoney Ridge Santa Monica Mts.
    UC79847UCJEPSCeanothus oliganthus var. sorediatusKatharine Brandegee1890-5-01 Santa BarbaraSanta Barbara
    JEPS48867UCJEPSCeanothus oliganthus var. sorediatusElsa Kraeger1926-3-13 Marine slope Mt. Tamalpais
    JEPS20053UCJEPSCeanothus oliganthus var. sorediatusMary F. Hall1925-3-22 MarinMt. Tamalpais
    UC520250UCJEPSCeanothus oliganthus var. oliganthusA. F. Howland, Marvin Darsie1931-4-01 VenturaSespe Creek
    UC18419UCJEPSCeanothus oliganthus var. sorediatusMichener, Bioletti1891-4-01 AlamedaLake Temescal
    UC18413UCJEPSCeanothus oliganthus var. sorediatusWillis L. Jepson1885-4-05 SolanoMiller's Canon
    UC79787UCJEPSCeanothus oliganthus var. oliganthusKatharine Brandegee1889-5-01 Los AngelesPasadena
    UC1595238UCJEPSCeanothus oliganthus var. oliganthusTim Ross, Peter Fritsch1990-6-20 Los AngelesMouth of Burro Canon San Gabriel Mts. (near confluence of the e and w forks of the San Gabriel River.)
    UC18374UCJEPSCeanothus oliganthus var. oliganthusDr. A. Davidson1896-4-26 Los AngelesLos Angeles
    UC54830UCJEPSCeanothus oliganthus var. sorediatusMrs. R. W. Summers1886-1-01 San Luis Obisponear Arroyo Grande (Sand Hills)
    UC79823UCJEPSCeanothus oliganthus var. sorediatusKatharine Brandegee2014-6-13 Santa ClaraAlma Santa Cruz Mountains
    MACF032808MACFCeanothus oliganthusTed L. Hanes1979-11-09 San Diego2 miles north of Alpine
    MACF032806MACFCeanothus oliganthusTed L. Hanes1967-5-02 Los AngelesUpper Clamshell Truck Trail, 8 mi. north of Monrovia, San Gabriel Mtns.
    MACF032805MACFCeanothus oliganthusTed L. Hanes1967-5-20 San Diegoabout 2 1/2 mi. southeast Julian
    MACF032804MACFCeanothus oliganthusTed L. Hanes1967-2-24 Los AngelesUp to 6 ft. on 1959 burn, especially on north slopes. Fern Canon, 4 mi. above Jet Propulsion Lab, San Gabriel Mtns.
    MACF032803MACFCeanothus oliganthusTed L. Hanes1967-2-20 Los AngelesOn 1959 burn on all slopes, Grizzly Flats Road, north of Angeles Crest Hwy., San Gabriel Mountains.
    MACF032800MACFCeanothus oliganthus var. orcuttiiH. Dearing1939-4-10 San DiegoEast of Julian on Banner-Julian Grade.
    MACF032789MACFCeanothus oliganthus var. orcuttiiF. E. Clements1927-3-04 San DiegoBarrett Lake.
    UC297933UCJEPSCeanothus oliganthus var. oliganthusunknown1991-11-23 Unknown
    UC54895UCJEPSCeanothus oliganthus var. sorediatusE. R. Drew1888-5-01 AlamedaOakland
    UC18464UCJEPSCeanothus oliganthus var. sorediatusWillis L. Jepson1892-7-01 LakeLower Lake Grade to Kelseyville
    UC18411UCJEPSCeanothus oliganthus var. sorediatusMichener, Bioletti1892-4-01 Santa ClaraLos Gatos
    UC423085UCJEPSCeanothus oliganthus var. oliganthusT. S. Brandegee1904-6-21 San DiegoDescanso
    JEPS42309UCJEPSCeanothus oliganthus var. sorediatusH. H. Haworth1917-5-03 Contra CostaRedwood Peak Oakland Hills
    UC79843UCJEPSCeanothus oliganthus var. sorediatusC. C. Parry1889-1-01 Unknown
    SBBG170859SBBGCeanothus oliganthusHenry M. Pollard1963-12-07 VenturaForest Service Rd (Wheeler's Hot Springs to Nordhoff Pk), Ojai District
    SBBG170860SBBGCeanothus oliganthusHenry M. Pollard1946-3-23 VenturaOcean View Trail, Santa Ynez Mtns above Matilija Cyn
    SBBG170861SBBGCeanothus oliganthusHenry M. Pollard1971-2-10 VenturaN slope, Forest Service Rd from Wheeler's Springs to Nordhoff Peak, Los Padres National Forest
    CDA0035584CDACeanothus oliganthus var. sorediatusM.P. Kelly1925-2-15 AlamedaClaremont Canon, Berkeley.
    CDA0035585CDACeanothus oliganthus var. sorediatusM.P. Kelly1925-3-1 AlamedaNorth slope, Claremont Canon, Berkeley.
    UCR0040816UCRCeanothus oliganthusJonas A. Winbolt0042010-8-20 Los Angelessouth of Santa Clarita, north side of Hwy I-5 and the Old Road, southeast of trailer park along powerline corridor
    UCR0040849UCRCeanothus oliganthus subsp. oliganthusD.L. Banks00991995-3-16 RiversideCleveland National Forest, Agua Tibia Wilderness Area. N slope of Agua Tibia Mtn., east of Dripping Springs Alcove, Arroyo Seco drainage.
    PGM6742PGMCeanothus oliganthus var. sorediatusHowitt, Beatrice F01511955-4-07 MontereySanta Lucia Mountains, Big Sur Park, At park
    DAV319651DAVCeanothus oliganthus var. sorediatusEsteban Bortiri020117-052002-1-17 SolanoAlong Mix Canon Road, ca. 1 mi. west of Pleasant Valley Road.
    UCR0040856UCRCeanothus oliganthusCarl B. Wolf020161931-5-13 VenturaAlong Piru Creek, 0.25 mile above the ranger station, or about 8 miles above Piru
    PGM6729PGMCeanothus oliganthus var. oliganthusHowitt, Beatrice F05431955-5-30 MontereySanta Lucia Mountains, Cone Peak Area Los Padres Nat For, Tr to Cone Peak Lookout
    PGM6738PGMCeanothus oliganthus var. sorediatusHowitt, Beatrice F08321956-3-26 MontereySanta Lucia Mountains, San Clemente Dam, Near Dam in field
    OBI124246OBICeanothus oliganthus var. oliganthusLarry Kelly11988-3-23 San DiegoMountain View rd ca 1 mi from Harbison Cyn rd
    RSA657448RSACeanothus oliganthusL. Corpening11979-4-23 Los AngelesVerdugo Mountains Region: About 1/2 mile north of intersection of Blanchard Canon Road and Covert Ave., Tujunga. Feet.
    CAS-BOT50470CASCeanothus oliganthusPollard, Henry M.11945-2-10 VenturaVentura River Basin, Matilija Canyon
    CAS-BOT50520CASCeanothus oliganthusPollard, Henry M.11971-2-10 VenturaLos Padres Nat'l. Forest - Forest Service Rd. from Wheelers Springs to Nordhuff Peak, on north slope
    HSC37079HSCCeanothus oliganthus var. oliganthusR. Sutherland1.26.3.761976-3-26 VenturaLos Padres National Forest, Ojai District, near Blue Point Campground, flat at bottom of Piru Canon near Piru Creek banks
    UC1088735UCJEPSCeanothus oliganthus var. sorediatusFerdinand W. Haasis1.58-2.581958-1-06 Montereyabout 1/2 mi by trail w Turner Creek Campground (on ridge between Rocky Creek and Turner Creek, near middle of west section line); Los Padres National Forest, btw Rocky Creek and Turner Creek
    LOB110799LOBCeanothus oliganthusJ. B. Hall101970-4-25 VenturaSquaw Flat Rd., Maple Creek area, Sespe Mountains
    RSA399739RSACeanothus oliganthus var. oliganthusH. Wells101968-3-17 Los AngelesAngeles National Forest. 3.7 miles north northeast junction of State Hwy. 118 and State Hwy. 2, on Angeles Crest Hwy.
    DAV319621DAVCeanothus oliganthus var. sorediatusS. Murphy102002-5-5 NapaNapa Co.: Quail Ridge UC Reserve, northern tip of ridge, along northern edge of upper road leading to power lines and tip parcels, NE from the intersection of West and East roads ca. 450m.
    HSC18336HSCCeanothus oliganthus var. sorediatusJ.W. Bosworth101965-4-16 AlamedaOakland, 6 mi E of Skyline Blvd. on Redwood Rd.
    UC1254069UCJEPSCeanothus oliganthus var. oliganthusG. Anderson101964-8-16 San DiegoPalomar Mountain Palomar quad., Cleveland Nat. For.
    SDSU14999SDSUCeanothus oliganthusReiser, Craig H.10-VI-871987-6-10 San DiegoSanta Margarita River. Camp Joseph Pendleton MCB. San Diego County, California. Base Section: 75-95.
    HSC37607HSCCeanothus oliganthus var. sorediatusR. Sutherland10.11.7.751975-7-11 HumboldtAlong county rd.
    UCR0112032UCRCeanothus oliganthus var. sorediatusR.G. Swinney100462009-2-26 Los AngelesMonrovia Canon Wilderness Park from park entrance to Monrovia Canon Falls
    UC18334UCJEPSCeanothus oliganthus var. sorediatusState Survey10051862-5-17 Contra CostaMt. Diablo
    RSA0038926RSACeanothus oliganthus var. oliganthusR. G. Swinney100582009-3-10 Los AngelesAzusa, El Encanto Azusa River Wilderness Park; Azusa 7.5' Q.
    DAV319673DAVCeanothus oliganthus var. sorediatusR.G. Swinney100582009-3-10 Los AngelesLos Angeles County: San Gabriel Mtns. Foothills, Azusa, El Encanto Azusa River Wilderness Park.
    UCR0040989UCRCeanothus oliganthus var. sorediatusR.G. Swinney100582009-3-10 Los AngelesAzusa, El Encanto Azusa River Wilderness Park
    SBBG168338SBBGCeanothus oliganthus var. oliganthusB. Clark101