Search Results — 2000 specimen records retrieved (1584 records with coordinates)
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(For large data reqests, please contact Jason Alexander, jason_alexander@berkeley.edu.)

 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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A yellow cell in the column headed "?", for records with coordinates, indicates a discrepancy with respect to range as specified in the eFlora. Read more ...
? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  RSA460928  Abronia maritima E. S. Spalding 1923-11-29 s.n. Orange Near San Juan Capistrano Comment
  RSA609047  Abronia maritima Louis C. Wheeler 1932-6-25 866 Orange Newport Bay. 0 Comment
  CAS-BOT-BC229406  Abronia umbellata Marcus E. Jones 1924-8-26 s.n. Orange Newport Comment
  CAS-BOT-BC229407  Abronia umbellata David D. Keck 1933-9-21 2535 Orange Sunset Beach Comment
  RSA69967  Abronia villosa var. aurita F. W. Peirson 1924-8-29 5060 Orange Santa Ana Comment
  UCSB52938  Acacia cyanophylla F. M. Roberts, Jr. 1984-3-15 1260 Orange collected 1.0 km SSW and 3.0 km W, along Back Bay Drive in Newport Back Bay Bayview School and U. C. Irvine Campus Center - Newport Back Bay, Back Bay Drive, U. C. Irvine Campus Center 2 Comment
  RSA0065574  Acacia decurrens var. dealbata Louis R. Klins 1949-2-12 s.n. Orange 1928 W. 17th Street, Santa Ana. 60 Comment
  SEINET5642645  Acacia longifolia Shelby J. Wood 2013-3-6 4 Orange Laguna Hills.; 0 Comment
  UCR24737  Acacia podalyriifolia Sue Freeman 1966-11-4 s.n. Orange Across Hwy 1 from San Clemente Beach at the foot of a grassy shrubby cliff Comment
  UCSB57544  Acacia pycnantha Roberts, Fred 1984-6-2 Orange Capistrano Beach: El Camino Real, 0.1 km. SE Beach Rd., UTM 3701800mN, 438025mE 5 Comment
  CDA25889  Acacia saligna Mark A. Elvin, D. G. Kelch, B. S. Nerhus, Patricia Iluore 2006-12-9 5325 Orange Southern Coastal; Newport Backbay; along Bayside Drive ca. 100 miles west of Eastbluff Drive. Comment
  IRVC8  Acer macrophyllum T. Price 1965-4-17 s.n. Orange Santa Ana Mtns: Silverao Cyn. Peninsular Ranges Comment
Read comments
Nov 15 2013
  RSA696762  Achillea millefolium C. H. Mueller 1932-5-30 s.n. Orange Corner Cleveland and Chapman Comment
  RSA33592  Achillea millefolium var. californica N. C. Cooper 1944-6-4 1345 Orange San Juan Canyon. 305 Comment
  CAS-BOT-BC211912  Achnatherum coronatum John Thomas Howell; Alice Eastwood 1937-4-24 3926 Orange 2 miles east of San Juan Hot Springs Comment
  UCSB18874  Acmispon glaber Shaw, Merrilee 1963-3-10 Orange South edge of Irvine Ranch, just east of Seaward Drive, about 0.5 mile north of U.S. Highway 101 and Corona del Mar 91 Comment
  SBBG120830  Acmispon heermannii var. heermannii A. C. Sanders, F. M. Roberts, M. Balk 2006-7-20 33005 Orange San Juan Cyn from Lower San Juan Picnic Area to ca. 1 mi downstream, parallel to Hwy 74 366 Comment
  CAS-BOT-BC29186  Acourtia microcephala J. T. Howell 1927-6-22 2571 Orange Hills on north side of Santa Ana Canyon 152 Comment
  UCD170068  Acourtia microcephala R. F. Thorne; E. W. Lathrop, W. Wisura 1977-7-8 49626 Orange Santa Ana Mountains: San Juan Canyon, along Ortega Highway (74) across from San Juan Fire Station. 214 Comment
  UCR174184  Acourtia microcephala A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33021 Orange Peninsular Range; Santa Ana Mtns., San Juan Canyon, from Lower San Juan Picnic Area to c. 1 mile downstream, parallel to Hwy 74 and near Riverside Co. line 396 Comment
  CDA33562  Acroptilon repens Nisson 2010-5-19 PDR# 1544178 Orange Seal Beach; 11 College Park Drive. 0 Comment
  UCD128506  Acroptilon repens Ethelbert Johnson 1922-8-8 s.n. Orange Greenville. Comment
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Apr 10 2016
  RSA5304  Adenostoma fasciculatum var. fasciculatum Carl B. Wolf 1932-12-19 1697 Orange Main divide of Santa Ana Mts. between Sierra Peak and Skyline Drive. 762 Comment
  RSA658199  Adenostoma fasciculatum var. fasciculatum T. A. Daubert 1991-5-19 653 Orange Tucker Wildlife Sanctuary, Modjeska Canyon inside sanctuary. Comment
  RSA3142  Adenostoma fasciculatum var. obtusifolium Carl B. Wolf 1931-7-7 2276 Orange Procotr Valley, 4 miles above the Upper Otay reservoir on the road to Jamul (east of Mt. San Miguel). 244 Comment
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Jun 8 2016
  CAS-BOT-BC175450  Adiantum capillus-veneris A. C. Sanders; Fred M. Roberts 2008-7-16 35836 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago, Dripping Spring off LImestone Canyon, c. 7.5 mi. ESE of Tustin 391 Comment
  SD247263  Adiantum capillus-veneris R. E. Riefner Jr. 2012-2-23 12 43 Orange City of Laguna Beach, Treasure Island Beach, vicinity of Wesley Drive and South Coast Highway. 0 Comment
  UCR193804  Adiantum capillus-veneris A. C. Sanders, Fred M. Roberts 2008-7-16 35836 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Dripping Springs off Limestone Canyon, c. 7.5 mi. ESE of Tustin 391 Comment
  POM256963  Adiantum jordanii W. Pequegnat 1940-6-14 s.n. Orange Yaeger's Meadow. Santa Ana Mountains 914 Comment
  RSA703722  Adiantum jordanii D. E. Bramlet, Fred M. Roberts 2003-3-27 3355 Orange Donna O'Neill Reserve. NE corner of the reserve 274m west of Cristianitos Rd. and 1.46km north of the E-W access road. 152 Comment
  IRVC21803  Adiantum jordanii B. L. Parry, F. M. Roberts 1926-3-13 162 Orange Santa Ana Canyon. M.E. Jones POM 122866. San Joaquin Hills: Moro Canyon, Crystal Cove State Park, 2.9km SE Signal Peak; 3.5km NE El Morro School, Yorba Linda 150 Comment
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Oct 25 2017
  UCR222973  Aeonium haworthii Robert DeRuff 2009-1 412 Orange South Coast, Upper Newport Bay, north Eastbluff area, bluff c. 100 m from Eastbluff Drive 12 Comment
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Dec 21 2019
  RSA695488  Ageratum houstonianum M. Funakoshi 1941-10-23 s.n. Orange Santa Ana. Comment
  CAS-BOT-BC180  Agoseris cinerea LeRoy Abrams 1901-6-15 1816 Orange Santiago Peak 914 Comment
  RSA416424  Agoseris retrorsa Christopher Davidson 1977-5-18 5611 Orange Cleveland National Forest; Santiago Peak (on Orange-Riverside Co. line) 1706 Comment
  RSA754073  Agrostis pallens A. C. Sanders, Fred M. Roberts 2008-7-16 35851 Orange Lomas de Santiago, Limestone Canyon 325 Comment
  UCR215278  Agrostis pallens Fred M. Roberts 2008-5-14 6968 Orange Lomas de Santiago, Loma Ridge, upper Bee Flat Canyon below Loma Ridge Road, 1.3 km north of Bee Peak and 5.4 km NW of Bolero Lookout. Irvine Ranch Conservancy 377 Comment
  UCR219855  Agrostis pallens Fred M. Roberts 2008-6-3 7029 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, East Fork Rattlesnake Canyon, c. 2.6 km NE Rattlesnake Reservoir spillway and 2.4 km ENE Bee Peak 225 Comment
  UC729937  Agrostis stolonifera Carl B. Wolf 1932-6-13 Orange Malvern and Nicholas Avenues Fullerton 53 Comment
  IRVC26678  Allium burlewii Mark A. Elvin 2004-4-4 3215 Orange UCI Arboretum Southern Coastal 15 Comment
  CAS-BOT-BC135853  Allium haematochiton P. C. Everett; E. R. Johnson 1935-5-29 7093 Orange Santa Ana Mts., head of Claymine Canyon 731 Comment
  RSA16496  Allophyllum glutinosum Percy C. Everett 1935-6-18 7211 Orange Santa Ana Mts., summit of Santiago Pk. 1732 Comment
  RSA588705  Allophyllum glutinosum Fred M. Roberts, Carol A. Roberts 1990-5-23 4646 Orange Santa Ana Mtns.: West Fork, Upper Long Canyon, near Main Divide Truck Trail, 4.5 km SE Los Pinos Peak. 756 Comment
  RSA452789  Alnus rhombifolia Marcus E. Jones 1930-1-26 26226 Orange Wildwood Camp, Santa Ana River. Comment
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Nov 18 2013
  RSA5391  Alnus rhombifolia B. D. Stark 1932-12-30 1717 Orange Rancho Santa Ana. River bottom below Mexican houses. 122 Comment
  RSA696343  Alnus rhombifolia Minor Warne 1934-02 s.n. Orange Modjeska Canyon Comment
  UCR193584  Alnus rhombifolia A. C. Sanders, T. B. Salvato 2008-5-13 35366 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Canyon above (S of) mouth of Hangman Tree Canyon, just below Modjeska Canyon confluence 366 Comment
  UCR239642  Alnus rhombifolia Fred M. Roberts 2012-5-9 7557 Orange Santa Ana Mountains, Lake Forest, along Serrano Creek hiking trail, 1.0 m south-southwest of intersection of Commercentre and Dimension Drives 171 Comment
  RSA731751  Amaranthus albus Fred M. Roberts 2007-11-9 6653 Orange San Juan Canyon along San Juan Creek, about 0.6 km E San Diego FWY. 24 Comment
  UCR193368  Amaranthus albus A. C. Sanders, T. B. Salvato 2008-5-13 35346 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Canyon at mouth of Hangman Tree Canyon and lower Hangman Tree Cyn, c. 1/2 mile below Modjeska Canyon confluence 366 Comment
  UCR44898  Amaranthus albus B. G. Pitzer, L. F. LaPre 1986-10-20 0313 Orange City of Irvine, Drainage channel near intersection of Irvine Blvd. and Sand Canyon Avenue. 91 Comment
  RSA184077  Amaranthus albus I. L. Wiggins 1966-5-4 20658 Orange Along railroad embankment of A.T. & S.F. R.R., on SW side of Orangethorpe avenue, near Esperanza siding. Comment
  RSA696430  Amaranthus blitoides Keith E. Hoffmaster 1927-05 289 Orange Santa Ana Comment
  UC537268  Amaranthus blitoides Lawrence M. Booth 1932-7-25 1309 Orange Santa Ana River, 0.5 mi from ocean Santa Ana River Comment
  IRVC14988  Amaranthus hybridus 1976-10-28 Orange Nieblas Elementary Sch. playground Fountain Valley Comment
  RSA1306  Amaranthus hybridus J. T. Howell 1928-9-20 1210 Orange Rancho Santa Ana, near ranch houses. 152 Comment
  JEPS54319  Amaranthus retroflexus Lawrence M. Booth 1932-7-25 1307 Orange Santa Ana River, near coast Santa Ana River Comment
  JEPS17300  Amblyopappus pusillus L. M. Booth 1932-5-12 1007 Orange Newport Bay Comment
Read comments
Jul 18 2007
  RSA736129  Ambrosia acanthicarpa T. B. Salvato, Katie Kurtz 2006-10-15 1916 Orange South Coast: Irvine, San Diego Creek flood control channel, near Michelson Drive and Harvard Avenue. Coordinates +/-1000m 6 Comment
  SD234274  Ambrosia acanthicarpa T. B. Salvato, K. Kurtz 2006-10-15 1916 Orange South Coast: Irvine, San Diego Creek flood control channel, near Michelson Drive and Harvard Avenue. 6 Comment
  POM202166  Ambrosia chamissonis L. M. Booth 1932-5-25 1110 Orange Balboa Island [Newport Bay]. Comment
  RSA416941  Ambrosia chamissonis L. C. Wheeler 1932-6-25 865 Orange Newport Bay. 0 Comment
  RSA696740  Ambrosia chamissonis var. chamissonis R. H. McArthur 1934-4-7 s.n. Orange Near outlet of Santa Ana River. Comment
  CDA25220  Ambrosia psilostachya A. C. Sanders, Fred M. Roberts 2008-8-7 35990 Orange Peninsular Range; Santa Ana Mountains.; Lower Weir Canyon, at narrow gorge c. 0.6 mile above mouth of canyon at Irvine Ranch gate. Comment
  UCR193830  Ambrosia psilostachya A. C. Sanders, Fred M. Roberts 2008-7-16 35850 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Limestone Canyon 325 Comment
  IRVC21741  Ambrosia psilostachya var. californica Fred M. Roberts 1984-10-18 1429 Orange San Juan Canyon, 2.5km ENE San Juan Guard Station; 4.0km WNW Sitton Peak, Santa Ana Mountains 310 Comment
  RSA666104  Ammannia coccinea Fred M. Roberts, Michelle Lee 2001-6-4 5488 Orange Rancho Mission Viejo: Chiquita Ridge, 0.3km WNW Median Rancho Survey Marker. PCR Vernal Pool 4. (Canada Gobernadora. 226 Comment
  RSA800133  Ammannia coccinea Justin M. Wood 2010-9-29 2746 Orange Santa Ana Canyon: Santa Ana River, southwest of Green River Golf Course and north of Hwy 91 and Santa Ana River Trail. 128 Comment
  IRVC8871  Ammi majus Charles W. Sexton 1963-7-15 s.n. Orange Costa Mesa. Southern Coastal Comment
  CAS-BOT-BC162062  Ammophila breviligulata L. R. Abrams 1917-6-23 6575 Orange Balboa. Comment
  CAS-BOT-BC180616  Amorpha californica var. californica L. R. Abrams 1901-6-1 1828 Orange Santa Ana Mts. Comment
  CAS-BOT-BC180617  Amorpha californica var. californica A. M. White 1974-6-1 74 -671 Orange N. of Silverado Canyon, ~20 mi. E. of Santa Ana 1005 Comment
  RSA16473  Amorpha californica var. californica Percy C. Everett 1935-6-19 7235 Orange Trabuco canyon. 1/2 mile below W. head of canyon. 1067 Comment
  UC1137526  Amorpha californica var. californica A. Lewis 1934-5-1 419 Orange Trabuco Canyon Cleveland National Forest, Elsinore Quadrangle 1341 Comment
  LA204906  Amorpha fruticosa A. H. Longe; 1951-5-10 sn Orange Balboa Comment
  UCR240112  Amorpha fruticosa Dick Newell, Don Millar 2012-5-22 260 Orange Peninsular Range; Santa Ana Mtns., mouth of Fremont Canyon, 0.4 mi. NE of Irvine Dam spillway 207 Comment
  SBBG40481  Amsinckia intermedia J. Ingram 1960-3-29 257 Orange 3 mi above O'Neill Park, Trabuco Cyn Comment
  RSA0089444  Amsinckia intermedia P. A. Munz 1934-3-26 13132 Orange Newport Beach. 15 Comment
  IRVC22198  Amsinckia menziesii var. intermedia Fred M. Roberts 1985-4-8 1636 Orange San Joaquin Hills, Turtle Rock area, hill 1.1km SE French Hill, Irvine 196 Comment
  IRVC201  Amsinckia menziesii var. intermedia S. Parks 1965-4-6 Orange Newport Back Bay. Newport Beach Comment
  IRVC213  Amsinckia menziesii var. intermedia D. Frees 1965-3-27 Orange Newport Beach; East Bluffs. Southern Coastal Comment
  RSA678449  Anagallis arvensis Valerie L. Soza, Kevin B. Clark, LeRoy Gross, Will Miller, Fred Roberts, Gary Wallace 2001-4-4 1123 Orange Seal Beach U. S. Naval Weapons Station, southwestern edge of Seal Beach National Wildlife Refuge. 3 Comment
  RSA732166  Anagallis arvensis A. C. Sanders, Fred M. Roberts 2008-4-8 34729 Orange Peninsular Range: Lomas de Santiago, Loma Ridge, head of Hicks Canyon. S of Santiago Reservoir. 351 Comment
  UCR4089  Anagallis arvensis Carole Sims 1965-3-28 s.n. Orange South Coastal Plains, Salt Creek Road off Pacific Coast Highway, between South Laguna and Dana Point 18 Comment
  POM1029  Andropogon glomeratus C. B. Bradshaw s.n. Orange San Joaquin Ranch near Laguna. Comment
  POM2017  Anemopsis californica D. L. Crawford 1916-7-26 s.n. Orange Aliso Canyon. Comment
  SD41483  Anemopsis californica Edith A. Purer 1932-8-31 4873 Orange Orange County near Route #101, moist depression in sand Comment
  IRVC26961  Anemopsis californica Peter A. Bowler 2003-4-20 s.n. Orange UC San Joaquin Freshwater Marsh Reserve; in marsh at Nedge of marsh beside UCI Arboretum. Southern Coastal 3 Comment
  RSA247341  Anemopsis californica G. D. Wallace 1966-4-16 472 Orange Ca. 10 mi. N of Camp Pendleton along Hwy 5. Comment
  RSA309584  Anemopsis californica J. R. Shevock 1974-4-28 3428 Orange Along Pacific Coast Highway 0.3 mile west of Brookhurst toward Beach Blvd. 3 Comment
  RSA700182  Anemopsis californica R. H. McArthur 1934-3-3 s.n. Orange Wintersburg canal bank Comment
  IRVC17996  Anthemis cotula A. B. McGee 1970-9-9 Orange San Diego Creek Channel adjacent to San Joaquin Freshwater Marsh. Irvine Comment
  IRVC9385  Anthemis cotula B. T. Gittins 1966-6-22 1411 Orange 0.5mi N Warner on Euclid Ave. Huntington Beach Comment
  UCR215279  Antirrhinum coulterianum Fred M. Roberts 2008-5-14 6966 Orange Lomas de Santiago, Loma Ridge, upper Bee Flat Canyon below Loma Ridge Road, 1.3 km north of Bee Peak and 5.4 km NW of Bolero Lookout. Irvine Ranch Conservancy 377 Comment
  UCR239651  Antirrhinum coulterianum Fred M. Roberts, Kay Stewart, Pamela Pallete, Bob Greenberg 2012-5-6 7547 Orange Santa Ana Mountains, Hot Springs Canyon, along San Juan Trail, 1.1 km north-northeast of San Juan Fire Station 351 Comment
  UCR203910  Antirrhinum multiflorum R. E. Riefner Jr. 2008-7-21 08- 248 Orange Santa Ana Mountains, Irvine Ranch Reserve, North Irvine Ranch, middle Fremont Canyon, east slope along Black Star SCE Road 718 Comment
Read comments
Sep 5 2010
  JEPS4277  Antirrhinum nuttallianum subsp. nuttallianum Alice King May 1908 Orange Newport Beach Comment
  POM354883  Antirrhinum nuttallianum subsp. subsessile Thekla Mohr 1917-04 s.n. Orange Laguna. Comment
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Nov 25 2014
  POM96035  Aphanisma blitoides P. A. Munz 1926-4-15 10823 Orange 2 miles NW of Laguna Comment
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Dec 4 2014
  UCR177863  Aphanisma blitoides Eliza L. Maher 2006-5-2 s.n. Orange South Coast, Dana Point Headlands, CNLM preserve 46 Comment
  RSA731994  Apiastrum angustifolium A. C. Sanders, L. Farley, F. M. Roberts, D. E. Bramlet 2008-4-1 34656 Orange Peninsular Range: Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 250 Comment
  RSA749833  Apium graveolens A. C. Sanders, Fred M. Roberts 2008-6-17 35469 Orange Peninsular Range; Santa Ana Mtns: Lomas de Santiago, Augustine staging area near Limestone Canyon Rd. gate at Santiago Cyn Rd. 260 Comment
  UCR192992  Apium graveolens A. C. Sanders, Fred M. Roberts 2008-6-17 35469 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Agustine staging area near Limestone Canyon Rd. gate at Santiago Cyn Rd. 260 Comment
  SEINET13943447 Image available Apium graveolens Carl B. Wolf 1932-1 3842 Orange Bryant ranch, Bixby ave., 0.2 mi W of Hansen Rd 0.2 mi W of SE corner of NE 40 of NE 160 of Sect. 34 T4S R11W Comment
  CHSC102  Apocynum androsaemifolium Sonia R. Westerberg 1938-4-1 Orange San Juan Canyon. Comment
  RSA0126213  Arabis glabra P. A. Munz, R. D. Harwood 1920-4-25 3721 Orange Santa Ana Mountains, Silverado Canyon. 549 Comment
  IRVC19394  Araujia sericifera R. L. Allen 1983-2-12 A627 Orange Fullerton; Hillcrest Park, slope bordering E Valley View Drive. Southern Coastal Comment
  RSA7635  Arbutus menziesii C. B. Wolf 1933-11-8 5534 Orange Trabuco Canyon on So. wall opposite the Trabuco Truck Trail. 915 Comment
  RSA767  Arctium lappa J. T. Howell 1927-6-30 253 Orange Bryant Ranch near Long Beach. 15 Comment
  LA42396  Arctostaphylos glandulosa W. Pequegnat; 1938-4-16 sn Orange Santa Ana Mountains, Indian Truck Trail 914 Comment
Read comments
Aug 29 2015
  IRVC1254  Arctostaphylos glandulosa subsp. glandulosa A. S. Boughey 1965-3-16 69 Orange Silverado Canyon. Santa Ana Mountains Comment
  RSA626919  Arctostaphylos glandulosa subsp. glandulosa Jon E. Keeley 1992-6-12 15508 Orange Hotshot Camp, north of Ortega Highway (Highway 74). 900 Comment
  RSA629324  Arctostaphylos glandulosa subsp. glandulosa Jon E. Keeley 1992-6-12 15502 Orange Road to Blue Jay Campground, 1 km south of Hotshot Camp, north of Ortega Hwy. (Hwy. 74). 800 Comment
  RSA798535  Arctostaphylos glandulosa subsp. glandulosa R. F. Thorne, E. W. Lathrop 1977-5-18 49732 Orange Santa Ana Mountains: at head of Trabuco Canyon Trail Comment
  UCSB48020  Arctostaphylos glandulosa subsp. glandulosa Roberts, Fred 1981-4-11 Orange Santa Ana Mtns.; Main Divide Truck Trail at junction with road leading to Blue Jay Campground, 1.0 km. N Blue Jay Campground 1132 Comment
  UC1302404  Arctostaphylos glandulosa subsp. zacaensis Robert F. Thorne and John Olmstead 1963-7-26 32838 Orange in Tin Mine Canyon above Beek's Spring; Cleveland National Forest, Santa Ana Mts., Trabugo District 609 Comment
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Apr 25 2011
  SEINET10449341  Arctostaphylos glandulosa var. glandulosa James S. Miller 2001-12-15 Miller 10653 Orange Rancho Santa Ana Botanic Garden, Santa Ana, CA. Comment
  SD53699  Arctotis stoechadifolia E. Norland 1963-5-24 Orange Cypress, Bishop St. Comment
  RSA539357  Argemone munita subsp. robusta Fred M. Roberts 1988-6-10 4101 Orange Santa Ana Mountains: Modjeska Peak, 0.4 km WSW summit. 1621 Comment
  SEINET4085709  Argemone munita var. robusta G. B. Ownbey, F. Ownbey 1954-1 2177 Orange Between Modjesca Peak and Santiago Peak. 1524 Comment
  RSA0013974  Aristida adscensionis Fred M. Roberts, David E. Bramlet 2008-5-13 6953 Orange Upper Weir Cyn., central fork, 3.5 km NE Roberst Peak 369 Comment
  UCR253006  Aristida adscensionis D. E. Bramlet, F. Roberts & CNPS Field Trip 1983-4-16 1367 Orange South Coast, Laguna Beach, Sycamore Hills, central ridge; 1.4 km NNE jct of El Toro and Laguna Cyn Rds; 5.4 km ESE Signal Peak 117 Comment
  UCR130489  Aristida purpurea var. parishii R. E. Riefner Jr. 2000-7-7 00- 629 Orange Santa Ana Mtns., North Ranch Policy Plan Area, on ridgeline overlooking upper west fork of Fremont Canyon; east of Main Divide Road and SE from Windy Ridge cypress forest 348 Comment
  RSA689539  Artemisia biennis R. E. Riefner 2003-8-17 03 -330 Orange Costa Mesa, Talbert Regional Park, Discovery Walk Road and Balboa Avenue. 3 Comment
  CAS-BOT-BC383077  Artemisia californica Andrew Townesmith; Karen M. Meyer; Tracy Scott 2007-3-11 676 Orange Cleveland National Forest. Off Long Canyon Road (Forest Service road 6S05), at mile post 2 (2.0 miles NW of route 74) 967 Comment
  RSA756323  Artemisia californica A. C. Sanders, Fred M. Roberts, Jutta Burger 2009-10-21 37191 Orange Lomas de Santiago, lower Hangmans Tree Canyon 379 Comment
  SD187333  Artemisia californica R. E. Riefner Jr. 2006-8-25 06 410 Orange City of Dana Point, Salt Creek Beach Park, vicinity of Dana Strand Rd. and Selva Rd. 2 Comment
  UC537026  Artemisia californica Lawrence M. Booth 1932-6-29 1223 Orange Newport Bay Comment
  CAS-BOT-BC90267  Artemisia douglasiana John Thomas Howell 1927-8-13 2989 Orange Santa Ana River bottom, Santa Ana Canyon 152 Comment
  RSA778  Artemisia douglasiana J. T. Howell 1927-8-13 627 Orange Santa Ana River Bottom 152 Comment
  RSA772  Artemisia dracunculus J. T. Howell 1927-7-17 419 Orange Between Tustin and Laguna Beach. 122 Comment
  RSA703138  Artemisia tridentata subsp. tridentata Fred M. Roberts, Arthur Davenport 2003-9-11 6017 Orange Rancho Mission Viego: Donna O'Neill Land Conservancy, Cristianitos Cyn., 85m SSW Sycamore Gate, 35m W of Cristianitos Road. 119 Comment
  RSA784180  Artemisia vulgaris J. D. Olmsted 1959-8-26 836 Orange Drainage area to Santiago Reservoir. Mouth of Black Star Canyon east of Santiago Reservoir. 320 Comment
  UCSB48010  Asclepias californica Roberts, Fred 1980-6-29 Orange Santa Ana Mtns.; Viejo Canyon, 0.4 km. N Calif. Rte. 74; 2.2 km. ENE San Juan Guard Station 341 Comment
  IRVC14869  Asclepias eriocarpa Gordon A. Marsh, Karlin G. Marsh 1976-7-8 s.n. Orange 0.1km W Casper's Park in fire break; periphery of live oak woodland. Rancho Mission Viejo Comment
  IRVC9354  Asclepias eriocarpa Roberta Seibel 1966-5-30 157 Orange 0.5 miles W Old Rancho Santa Ana Botenical Garde on Orangethorpe Ave. by side of raod. Comment
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May 26 2019
  SEINET10580457  Asclepias eriocarpa Carl B. Wolf 1936-6-17 Wolf s.n. 1936 Orange Santa Ana Mountains, along Ortega Highway, 5.6 mi above San Juan Capistrano 76 Comment
  UCD138664  Asparagus asparagoides B. Pitzer 1996-4-30 2787 Orange Upper Newport Bay: Calif. Dept. Fish and Game Ecological Reserve, off (W of) Jamboree Rd. 6 Comment
  IRVC178  Asplenium bulbiferum Ray Nesheim 1965-5-11 HS0565 Orange Balboa Island. Southern Coastal Comment
  CDA23617  Aster subulatus var. ligulatus A. Thomas, Mark A. Elvin 2006-9-23 609232 Orange Southern Coastal; San Joaquin Marsh Freshwater Marsh, UC Natural Reserve; southwest edge, along San Diego Creek, north of University Drive, east of Highway 73. Comment
  CAS-BOT-BC180451  Astragalus brauntonii Carl B. Wolf 1936-6-22 8000 Orange Santa Ana Mts., No. slopes of Sierra pk., Claymine Canyon truck trail to Sierra Pk. 457 Comment
  RSA6139  Astragalus brauntonii B. D. Stark 1933-06 4997 Orange Santa Ana Mountains, north slopes of Sierra Peak. [county unspecified] Comment
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Aug 9 2007
  RSA699637  Astragalus didymocarpus Keith E. Hoffmaster 1935-4-19 s.n. Orange Santa Ana Mts. (Trabuco Rd.) Comment
  UCR191477  Astragalus didymocarpus A. C. Sanders, Fred M. Roberts 2008-4-8 34749 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, head of Hicks Canyon, S of Santiago Reservoir 351 Comment
  IRVC19366  Astragalus didymocarpus var. didymocarpus R. L. Allen 1975-4-20 Orange San Juan Creek bed, 1.4km N La Novia Bridge, 15km W waters edge. San Juan Capistrano Comment
  RSA749305  Astragalus gambelianus Fred M. Roberts 1999-4-21 5178 Orange Lomas de Santiago: Loma Ridge, ridges north of Dripping Springs Cyn., 1.5 km W Silverado Sch. and 4.8 km NNW Bolero Lookout. 365 Comment
  RSA699499  Astragalus nigrescens Anonymous s.n. Orange Orange County park Comment
  RSA554621  Astragalus trichopodus Scott D. White 1992-10-20 968 Orange Vicinity of city of Brea, Immediately N of Carbon Canyon Rd & E of Placentia Avenue +/-1mi (air) SSE of Tonner Canyon. 183 Comment
  POM17799  Astragalus trichopodus var. lonchus P. A. Munz 1923-9-7 7770 Orange Mouth of Trabuco Canyon 305 Comment
  CAS-BOT-BC170565  Atriplex Mark A. Elvin; D. Kelch 2006-12-9 5306 Orange Newport Backbay; Big Canyon, lower end - Southern Coastal 3 Comment
  RSA671247  Atriplex R. E. Riefner 2002-5-4 20 -87 Orange City of Dana Point, beach west of Pacific Coast Hwy. near mouth of Salt Creek. 15 Comment
  UC1980252  Atriplex R. E. Riefner Jr. 2006-8-3 06 -383 Orange City of Irvine, MacArthur Blvd. ca. 0.2 mi S of Jamboree Rd. near Bonita Creek. Comment
  RSA743664  Atriplex R. E. Riefner 2006-8-6 6 -382 Orange City of Newport Beach, Newport Bay, Big Canyon Creek drainage near Back Bay Dr. 9 Comment
  UC1543167  Atriplex Donald G. Nelson 1935-6-28 339 Orange Fullerton, dry roadside on S. Gilbert Ave. Comment
  RSA737856  Atriplex amnicola R. E. Riefner 2005-9-9 5 -659 Orange City of Dana Point, beach south of Salt Creek, past Ritz Carlton Hotel on Pacific Coast Hwy. 2 Comment
  UCR266400  Atriplex californica D. E. Bramlet 1991-5-15 3055 Orange South Coast, Dana Point 30 Comment
  POM21631  Atriplex canescens F. W. Peirson 1934-2-10 4528 Orange Corona Del Mar Comment
  POM47599  Atriplex canescens I. M. Johnston 1924-8-29 s.n. Orange Corona Del Mar Comment
  SD40182  Atriplex canescens Edith A. Purer 1932-8-31 4869 Orange Near Route 101. Comment
  UCD97285  Atriplex canescens Lawrence M. Booth 1932-7-23 1301 Orange Corona del Mar, Newport Beach. Comment
  IRVC25488  Atriplex davidsonii Fred M. Roberts, Karen Calloway 1987-8-19 3585 Orange San Joaquin Freshwater Marsh, 1.7km NW University of California, Irvine campus center near Fairchild; Irvine 2 Comment
Read comments
Feb 1 2020
  RSA731965  Atriplex glauca A. Sanders 2008-4-29 35139 Orange Lomas de Santiago, western end of Loma Ridge on road to sheriff s training facility, c. 1.5mi SW of Santiago Reservoir. 335 Comment
  SD236264  Atriplex glauca D. Bramlet 1994-2-27 2365 Orange Newport Beach 7.5 Quad. Roadside area, some 120 meters east of intersection of Irvine Ave and University Drive, approximately 1 meter south of University Drive. 14 Comment
  UCR127689  Atriplex glauca D. E. Bramlet 1994-2-27 2365 Orange South Coast, Roadside, some 120 m east of intersection of Irvine Ave. and University Drive, c. 1 m south of University Drive Comment
  UCR203878  Atriplex glauca R. E. Riefner Jr. 2009-1-2 09- 4 Orange South Coast, city of Newport Beach, Upper Newport Bay, vicinity of Irvine Ave. and Santiago Dr. 10 Comment
  IRVC22418  Atriplex glauca Karlin G. Marsh 1985-12-18 Orange along Niguel Rd. at Salt Creek crossing, Laguna Niguel 60 Comment
  UCD97423  Atriplex hortensis B. A. Madson 1938-8-31 s.n. Orange Orange County. Comment
  SEINET4135192  Atriplex lentiformis Grant D. Brown 1949-10-9 399 Orange Located 4 miles north of San Clemente at base of coastal bluffs on highway 101.; 0 6 Comment
  UCR154265  Atriplex lentiformis Mark A. Elvin 2004-5-2 3423 Orange Southern Coastal, Irvine: San Joaquin Freshwater Marsh, near Campus and University Drives; 1.7 km (air) NNW UC Irvine campus center 3 Comment
  RSA0028771  Atriplex lentiformis subsp. lentiformis Fred M. Roberts 2009-4-21 7112 Orange Dana Point Headlands: southern cliffs, 0.7 km W Marine Institute at Dana Point Harbor. CNLM Dana Point Preserve. 3 Comment
  RSA312125  Atriplex leucophylla N. C. Cooper 1942-11-9 884 Orange Balboa Comment
  SD181601  Atriplex leucophylla Valerie Soza, K Clark,L Gross,W Miller,F Roberts,G Wallace 2001-4-4 1117 Orange Anaheim Bay, Seal Beach, U.S. Naval Weapons Station, southwestern edge of Seal Beach National Wildlife Refuge; Seal Beach 7.5' quad. Coastal sand dunes. 3 Comment
  LA210077  Atriplex leucophylla Jonathan Sauer; D. L. Johnson 1969-5-11 4520 Orange West Cove, NW end of island Comment
  RSA478322  Atriplex leucophylla Anstruther Davidson 1902-09 s.n. Orange Newport Beach. Comment
  POM201890  Atriplex prostrata L. M. Booth 1932-8-5 s.n. Orange West Newport Beach Comment
  RSA689538  Atriplex prostrata R. E. Riefner 2003-8-31 3 -340 Orange Costa Mesa, Talbert Regional Park, Discovery Walk Road and Balboa Avenue. 12 Comment
  UCR127688  Atriplex rhagodioides D. E. Bramlet 2003-6-17 3466 Orange Upper Newport Bay, Big Canyon, 128 m east of Backbay Drive and 70 m south of the existing maintenance road 8 Comment
  HSC24271  Atriplex rosea James Henrickson 1970-7-24 5002 Orange 3 mi. NW of Huntington Beach near sandy 'Rabbit' Island in Bolsa Chica Salt Marsh near Inner Bolsa Bay 1 Comment
  UCSC000220  Atriplex rosea Lawrence M. Booth 1932-7-4 1256 Orange Newport Lagoon Comment
  RSA234507  Atriplex rosea James Henrickson 1970-7-25 5068 Orange 2 miles N of Huntington Beach along NE margin of Bolsa Chica Salt March 0 Comment
  CLARK-A1528-980  Atriplex semibaccata Patricia A. Andrews 1975-6-26 5924 Orange Capistrano Bay Beach 9 Comment
  UC1714443  Atriplex semibaccata P. A. Munz 1934-3-26 13136 Orange edge of salt marsh Newport Beach Newport Beach 4 Comment
  UCR130494  Atriplex semibaccata R. E. Riefner Jr. 2002-5-4 02- 90 Orange South Coast, Upper Newport Bay, Jamboree Road at Bayview Dr., edge of Newport Beach Q. 21 Comment
  UCSB48087  Atriplex semibaccata Roberts, Jr., Fred 1981-5-2 Orange Mission Viejo; Camino Capistrano, 1.7 km. N Crown Valley Parkway 49 Comment
  RSA5955  Atriplex serenana C. B. Wolf 1932-7-7 3846 Orange Bixby Ave., 0.7 mile W of Hansen road (0.2 mile W of SE corner of NE/4 of NW/4). 8 Comment
  POM201963  Atriplex serenana L. M. Booth 1932-7-25 1315 Orange Santa Ana River 2 miles from ocean. Comment
  CAS-BOT-BC176755  Atriplex serenana var. serenana I. M. Johnston 1918-5-5 1930 Orange Laguna Beach Comment
  UC536963  Atriplex serenana var. serenana Lawrence M. Booth 1932-7-25 1315 Orange 2 mi from ocean (Santa Ana River); Santa Ana River Comment
  SD220052  Atriplex suberecta Mark A. Elvin 2004-5-2 3424 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7 km (air) NNW UC Irvine campus center. 3 Comment
  UCR154266  Atriplex suberecta Mark A. Elvin 2004-5-2 3424 Orange Southern Coastal, Irvine: San Joaquin Freshwater Marsh, near Campus and University Drives; 1.7 km (air) NNW UC Irvine campus center 3 Comment
  RSA703251  Atriplex suberecta R. E. Riefner Jr. 1999-5-22 4 -292 Orange City of Dana Point, west of Pacific Coast Hwy., vicinity of Salt Creek Park and Ritz Carlton Hotel. 15 Comment
  RSA48695A  Atriplex subspicata I. M. Johnston 1924-8-29 s.n. Orange 2.5 miles north of Balboa. Comment
  RSA65348  Atriplex watsonii F. W. Peirson 1924-8-29 5089 Orange Mainland at bridge, Balboa Beach. Comment
  RSA678508  Atriplex watsonii Valerie Soza, Kevin B. Clark, LeRoy Gross, Will Miller, Fred Roberts, Gary D. Wallace 2001-4-4 1100 Orange Seal Beach National Wildlife Refuge: Seal Beach U. S. Naval Weapons Station, across access road from Nature Center (Bldg 226). 3 Comment
  UC536976  Atriplex watsonii Lawrence M. Booth 1932-5-12 1001 Orange Newport Bay Comment
  UCR14050  Atriplex watsonii Hyrum B. Johnson 1973-10-27 s.n. Orange Pacific Coast, Bolsa Chica State Beach 1 Comment
  UCR211857  Atriplex watsonii Valerie Soza, Kevin Clark, LeRoy Gross, Will Miller, Fred M. Roberts, G. D. Wallace 2001-4-4 1100 Orange South Coast, Seal Beach National Wildlife Refuge, Seal Beach U. S. Naval Weapons Station, across access road from Nature Center (Bldg 226) 3 Comment
  JEPS68451  Avena barbata L. M. Booth 1932-5-12 1040 Orange Newport Bay Comment
  UCR193000  Avena barbata A. C. Sanders, T. B. Salvato 2008-5-13 35378 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Canyon above (S of) mouth of Hangman Tree Canyon, just below Modjeska Canyon confluence 366 Comment
  HSC9025  Avena fatua J. W. Johnson 1961-3-29 Orange Newport Beach Comment
  UCR100306  Avena fatua B. G. Pitzer 1997-4-15 3140 Orange San Joaquin Hills, Crystal Cove State Park, north of the N end of the City of Laguna Beach. Along Moro Canyon Trail, from beginning to a point c. 1.75 mi. up the canyon. 49 Comment
  UCR193069  Avena fatua A. C. Sanders, T. B. Salvato 2008-5-13 35336 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Canyon at mouth of Hangman Tree Canyon and lower Hangman Tree Cyn, c. 1/2 mile below Modjeska Canyon confluence 366 Comment
  RSA151095  Baccharis douglasii Peter H. Raven 1961-10-15 16861 Orange Coast Hwy 2 miles SE of Sunset Beach 0 Comment
  CDA1073  Baccharis emoryi D. G. Kelch 2006-12-9 6 .537 Orange Along Newport Back Bay Dr. in side canyon. Comment
  IRVC18079  Baccharis emoryi Gordon A. Marsh 1980-10-24 Orange Irvine: San Joaquin Frreshwater Marsh, south end, earth dam, pond 4. southern coastal Comment
  UCSB34207  Baccharis emoryi Wayne R. Ferren, Jr. with F. Roberts 1980-8-27 2342 Orange collected 3.5 km NE, in Newport Backbay, trending NW from Bayside Drive, in Newport Beach. Route 1 - Newport Backbay, Bayside Drive, and Newport Beach Comment
  SD237301  Baccharis glutinosa A. C. Sanders, Fred M. Roberts, Jutta Burger 2009-10-21 37201 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago, Santiago Canyon near mouth of Limestone Cyn., at Agustine Staging Area. 259 Comment
  UCR210317  Baccharis glutinosa A. C. Sanders, Fred M. Roberts, Jutta Burger 2009-10-21 37201 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Canyon near mouth of Limestone Cyn., at Agustine Staging Area 260 Comment
  UCR205874  Baccharis malibuensis R. E. Riefner Jr. 2008-6-25 08- 175 Orange Santa Ana Mountains, Irvine Ranch Reserve, Fremont Canyon Conservation Easement, east Fremont Canyon, power line access road off Lakeview SCE Road 483 Comment
  RSA741697  Baccharis malibuensis R. E. Riefner Jr. 2008-6-25 08 -173 Orange Santa Ana Mts., Irvine Ranch Reserve, Fremont Canyon Conservation Easement, east Fremont Canyon, power line access road off Lakeview SCE Rd. 470 Comment
  RSA528054  Baccharis pilularis A. C. Sanders 1990-10-6 10200 Orange Newport Bay, North Star County Beach area on the SW end of the bay, ca. 2 km inland of Hwy 1 1 Comment
  UCD129430  Baccharis pilularis B. Pitzer 1997-11-8 3373 Orange Crystal Cove State Park: Pelican Point Area, grassland area between Pacific Coast Hwy and the bike trail. Open areas adjacent to parking lot. 30 Comment
  UCR103720  Baccharis pilularis B. G. Pitzer, T. Tennant 1997-11-8 3376 Orange San Joaquin Hills, Crystal Cove State Park, Pelican Point Area, grassland area between Pacific Coast Hwy and the bike trail. 30 Comment
  UCR186681  Baccharis pilularis T. B. Salvato, Katie Kurtz 2006-10-15 1914 Orange South Coast, Irvine, San Diego Creek flood control channel, near Michelson Drive and Harvard Avenue 6 Comment
  UCR237841  Baccharis pilularis Mark A. Elvin 2003-2-2 2270 Orange South Coast, San Joaquin Marsh, UCI campus SSE of intersection of Jamboree Blvd. and Campus Dr. 2 Comment
  RSA292686  Baccharis pilularis James Henrickson 1972-10-21 8047 Orange Eastern Anaheim, 2 blocks E of Imperial Hwy along LA Palma Ave, just N of Santa Ana River. 61 Comment
  IRVC517  Baccharis pilularis subsp. consanguinea A. S. Boughey 163 Orange [San Juan Canyon], Ortega Hwy, 1mi E San Juan Guard Sta. Santa Ana Mountains Comment
  OBI5993  Baccharis pilularis subsp. consanguinea Carl B. Wolf 1934-12-26 6262 Orange Hills and ravines near ocean, south end of town of San Clemente; Upper Sonoran zone 15 Comment
  UCR222861  Baccharis pilularis subsp. consanguinea T. B. Salvato 2010-10-27 5131 Orange South Coast, Dana Point Headlands, Hilltop Park, north of Scenic Dr. and west of Green Lantern St., overlooking Dana Point Harbor 84 Comment
  SD9148  Baccharis pilularis subsp. consanguinea unknown Dec 1878 Orange Santa Ana Valley Comment
Read comments
Oct 29 2013
  HSC5106  Baccharis salicifolia T. L. Ackerman 1964-3-28 14 Orange On Irvine Park Dr. inside Irvine Park Comment
  SBBG40584  Baccharis salicifolia C. Ingram 1960-3-29 256 Orange ca. 3 mi above O'Neill Park, Trabuco Cyn Comment
  SD175792  Baccharis salicifolia D. G. Kelch 2006-12-9 06 557 Orange Irvine, University Dr. along tidal creek just east of I-73. 9 Comment
  SD220034  Baccharis salicifolia Mark A. Elvin 2004-5-2 3414 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7 (air) NNW UC Irvine campus center. 3 Comment
  UCR223420  Baccharis salicifolia Dick Newell, Don Millar 2011-3-1 066 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Hicks Canyon Haul Road, above Jeffrey Rd. and below Hwy 241 crossing 175 Comment
  UCR240069  Baccharis salicina Dick Newell, Judy Booth 2012-9-26 289 Orange South Coast, Newport Beach, Back Bay Drive at Big Canyon parking area 3 Comment
  RSA649689  Bahiopsis laciniata R. E. Riefner 2000-7-2 20 -602 Orange NCCP North Ranch Policy Plan Area. Along Black Star Canyon Road and along Silverado Creek. Comment
  SD248323  Bahiopsis laciniata R. E. Riefner Jr. 2013-4-5 13 56 Orange Anaheim Hills, vicinity Hidden Canyon Rd., at Avenue De Santiago 305 Comment
  RSA113260  Barbarea orthoceras E. K. Balls 1955-4-4 20427 Orange 2.7 miles SW from Orange Riverside county line, along Hwy 74, San Juan Capistrano to Elsinore. 305 Comment
  RSA5825  Bassia hyssopifolia C. B. Wolf 1932-6-28 3797 Orange 100 ft. east of pump house at East End Camp. 9 Comment
  RSA439754  Batis maritima F. R. Fosberg 1931-8-19 S 5678 Orange Newport Bay. 1 Comment
  RSA768518  Batis maritima Justin M. Wood 2009-12-1 1388 Orange Santa Ana River: marsh just upstream of Pacific Coast Highway. 0 Comment
  SFV16189  Batis maritima R. K. Stachelek, B. Anderson, F. Schropshire 1995-3-1 42 Orange Newport Beach, Upper Newport Bay on Back Bay Drive about 0.5 miles north of Shellmaker Island. Margins of salt marsh. Comment
  UCR26036  Batis maritima Wayne R. Ferren 1980-8-27 2330 B Orange South Coast, along channel in Newport Backbay west side of Backbay Drive, about 1.5 km northeast of Hwy 1, Newport Beach Comment
  UCR37789  Bebbia juncea Steve Boyd, L. LaPre 1981-5-27 s.n. Orange Santa Ana Mtns., Northern end of the Santa Ana Mtns., along powerline road on ridges east of Weir Canyon & at the head of Gypsum Canyon. Comment
  UCR38073  Bebbia juncea G. Sampson 1985-5-7 85- 387 Orange Chino Hills State Park, abandoned corral site at the west end of Telegraph Canyon Comment
  CAS-BOT-BC106424  Bebbia juncea var. aspera B. D. Stark 1929-11-2 651 Orange Along railroad track, Rancho Santa Ana 152 Comment
  UC484167  Bebbia juncea var. aspera B. D. Stark 1929-11-2 651 Orange Rancho Santa Ana 152 Comment
  RSA0062667  Bellis perennis Carol Zuck 52 Orange Saybrook Lane at the intersection with Silliman Street, Huntington Beach. Comment
  RSA789603  Berberis dictyota R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49716 Orange Santa Ana Mountains: Bedford Truck Trail, ca. 0.8 km below junction with Main Divide Truck Trail Comment
  RSA724044  Bidens frondosa R. E. Riefner 2004-9-18 04 -420 Orange City of Yorba Linda; Santa Ana River, Horseshoe Bend, near La Palma Rd. and Via Del Rio Rd. 106 Comment
  JEPS30712  Bidens laevis Peter H. Raven 1961-10-15 16850 Orange Anaheim Street, Anaheim, Santa Ana River Bed Santa Ana River Bed, Anaheim, Anaheim Street 60 Comment
  RSA800  Bidens laevis J. T. Howell 1927-10-23 768 Orange Santa Ana River bottom, Rancho Santa Ana 152 Comment
  IRVC24282  Bidens laevis Fred M. Roberts, G. A. Marsh 1985-10-26 2519 Orange Santa Ana River: adjacent to Huntington Beach; 0.7km SSW Adams Street bridge. southern coastal 4 Comment
  RSA488143  Bidens laevis Fred M. Roberts, Gordon Marsh 1985-10-26 2519 Orange Santa Ana River: adjacent to Huntington Beach: 0.7 km SSW Adams St bridge 4 Comment
  RSA730988  Bidens pilosa var. pilosa Fred M. Roberts 2006-11-15 6462 Orange Santa Ana Cyn., 1.0 km ENE Imperial Hwy bridge, between La Palma Ave. and Santa Ana River near Big Springs St. 89 Comment
  RSA749995  Bloomeria crocea A. C. Sanders, Fred M. Roberts, Amber O Neal 2008-5-9 35329 Orange Weir Canyon, 0.3 mi. west of Eastern Transportation Corridor (Hwy 241) and 1.45 mi. east of south end of Walnut Canyon Reservoir 335 Comment
  RSA652084  Bloomeria crocea Shlomo Gat 1959-5-12 38 Orange Hills in Orange county. Comment
  UCSB52906  Bolboschoenus maritimus Roberts, Fred 1984-8-6 Orange Irvine: UC Irvine, along Abode Circle Road; 0.9 km. ENE campus center; 2.3 km. W French Hill 30 Comment
  UCR85532  Bolboschoenus maritimus subsp. paludosus Scott D. White 1993-4-28 1289 Orange Pacific slope, Tustin Marine Corps Air Station, NW of Peters Canyon Channel, between Moffett Dr. & Warner Comment
  CAS-BOT-BC21117  Bolboschoenus robustus James R. Shevock 1972-9-27 2288 Orange South Coast Ranges. Upper Newport Bay, city of Newport Beach. 1 Comment
  CAS-BOT-BC31390  Bolboschoenus robustus Joseph Andorfer Ewan 1932-7-29 7728 Orange Newport Lagoon Comment
  RSA588717  Bothriochloa barbinodis Fred M. Roberts 1990-6-5 4680 Orange Rancho Mission Viejo: Uper Gabino Canyon, near Orange County line, 3.9 kilometers E Point Ranch Survey Marker; UTM Z11 37 10 300m N, 4 52 100m E. 280 Comment
  POM78671  Bowlesia incana Albert J. Perkins 1917-4-7 s.n Orange Silverado Canyon, Santa Ana Mts. Comment
  UCD127256  Bowlesia incana Ronni Stachelek; Bob Anderson, Frances Schropshire 1995-3-1 39 Orange Newport Beach, Upper Newport Bay on Back Bay Drive ca. 1/2 miles north of Shellmaker Island. Comment
  RSA542371  Brachypodium distachyon Fred M. Roberts, Karlin G. Marsh 1988-4-25 3933 Orange San Joaquin Hills: East flank Pelican Hill, 0.9 kilometer SE summit. 120 Comment
  IRVC14742  Brassica geniculata A. S. Boughey 1968-4-23 214 Orange Black Star Canyon, .5mi below Hidden Ranch; area burned this winter. Santa Ana Mountains Comment
  CAS-BOT-BC30255  Brassica nigra Alice Eastwood 1936-4-5 s.n. Orange Santa Ana. Bixby Botanic Garden. Comment
  UCSB42715  Brassica rapa Fall, G. 1970-2-15 Orange Behind Othrays Hall I; 651 N. Titan Dr.; S of Hutwood Ave. and E of State College Blvd. Comment
  RSA124713  Brickellia californica E. K. Balls, Percy C. Everett 1957-11-25 22836 Orange 1 mi. NE from Trabuco Oaks. 549 Comment
  RSA764022  Brickellia californica Doris Bowers 1970-10-26 1706 Orange Black Star Canyon 610 Comment
  RSA184177  Bromus carinatus I. L. Wiggins 1966-3-16 20528 Orange Entrance to Firestone Boy Scout Reservation. Comment
  UCR138441  Bromus carinatus R. E. Riefner Jr. 2000-6-22 20 575 Orange Santa Ana Mountains, North Ranch Policy Plan Area, NE property, along National Forest boundary, at powerline 756 Comment
  CAS-BOT-BC149276  Bromus carinatus var. carinatus Ira L. Wiggins 1966-3-16 20528 Orange Roadside bank near entrance to Firestone Boy Scout Reservation. Comment
  CAS-BOT-BC149277  Bromus carinatus var. carinatus Steve Boyd; Tim Ross 1992-5-19 7417 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of the wilderness along Lucas Canyon Trail from access road to Rancho Cordillo (7S06) north into Aliso Canyon. 457 Comment
  CAS-BOT-BC156204  Bromus catharticus John Thomas Howell 1956-3-11 30924 Orange Yorba Linda Comment
  CAS-BOT-BC156209  Bromus catharticus Ira L. Wiggins 1965-9-5 20326 Orange In orange grove on north side of Chapman Avenue, near Kraemer Road. Comment
  UCD58377  Bromus catharticus Frank W. Gould 1944-6-25 2360 Orange Tournat Ranch. Garden Grove. Comment
  CAS-BOT-BC156002  Bromus diandrus John Thomas Howell 1927-6-9 2466 Orange North side Santa Ana Canon [Canyon]. 152 Comment
  RSA0035210  Bromus diandrus Sandy Gray 1981-04 2 Orange Hwy. 142, Carbon Canyon Rd. 3 miles west of Cavida, Chino. Comment
  RSA0042731  Bromus diandrus David Barrios 1991-5-1 19 Orange 1500 ft. Northwest of Fairmont Ave and Quail cir., Yorba Linda. 365 Comment
  SD95150  Bromus grandis Jack l. Reveal 1975-7-18 1765 Orange Occasional on dry sites among boulders, riparian zone, Trabuco Canyon 550 Comment
  RSA126901  Bromus hordeaceus A. Lewis 1934-04 [ 387 ?] Orange 0.5 mile E of Borrego Canyon 457 Comment
  RSA542368  Bromus hordeaceus Fred M. Roberts 1988-4-10 3915 Orange Lomas De Santiago: Loma Ridge, 1.0 kilometer N Bolero Lookout., UTM 37 31 1000m N, 4 39 600m E. 415 Comment
  SEINET11675550  Bromus hordeaceus subsp. molliformis J. F. Bright, Wyman, C. 1933-1 8207 Orange near Del Toro Comment
  UCR177289  Bromus madritensis subsp. madritensis Scott D. White, Amanda Duchardt 2003-5-1 9155 Orange Santa Ana Mountains, Slopes above the west side of Canada Gobernadora and adjacent small canyon to the west 122 Comment
  CAS-BOT-BC162108  Bromus porteri John Thomas Howell 1927-6-17 2549 Orange Hills on north side of Santa Ana Canon [Canyon]. 152 Comment
  CAS-BOT-BC161817  Bromus rubens Ira L. Wiggins 1966-2-19 20455 Orange Carbon Canyon near Orange County Survey Bench Mark RCE 7872. Comment
  RSA737546  Bromus rubens Fred M. Roberts 2008-3-12 6715 Orange Dana Point: Dana Point Headlands CNLM Preserve, western side, c.a. 0.8 km W Marine Institute (Dana Point Harbor). 50 Comment
  POM363950  Bromus rubens E. A. McGregor 1966-5-15 s.n. Orange Ortega Highway, between Lake Elsinore and San Juan Capistrano. Comment
  RSA542557  Bromus rubens Fred M. Roberts 1989-3-17 4206 Orange Aliso-Wood Canyon Regional Park: Aliso Canyon, 3.4 kilometers SSE Moulton Peak., UTM 3711900m N, 432900m E 55 Comment
  RSA650419  Bromus rubens R. B. Newcom 1948-4-24 25 Orange approx. 3 miles N.W. of Irvine Park. Comment
  UCSB47951  Bromus tectorum Roberts, Dar 1980-5-3 Orange 1.8 km W Trabuco Peak on Main Divide Truck Trail;, and Trail Trail 1256 Comment
  POM543  Cakile edentula subsp. edentula D. L. Crawford 1916-7-28 s.n. Orange Abalone Point Comment
  CHSC90613  Cakile maritima Sean P. Gallagher 1988-4-2 6 Orange Bolsa Chica State Beach 1 mi s of Warner Ave. 0 Comment
  RSA752711  Cakile maritima Fred M. Roberts, Sandra Leatherman, Jennifer S. Pareti 2009-4-14 7147 Orange Dana Point Headlands: Dana Strand Beach and slopes above beach, 0.8 km WNW Marine Institute at Dana Point Harbor. CNLM Dana Point Preserve. 3 Comment
  UCSB42556  Cakile maritima Romspert, Alan 1966-3-11 Orange Along U.S. Highway 101 alternate across from Huntington Beach Comment
  RSA716783  Calamagrostis koelerioides Fred M. Roberts, Carol A. Roberts, Devoree Volgado 1995-5-6 4941 Orange Santa Ana Mountains region: Ridge between Hot Springs Cyn. and Viejo Cyn., San Juan Trail, 3.7 km WNW Lower San Juan Picnic Ground. 622 Comment
  UC1618044  Calandrinia Donald G. Nelson 1933-7-16 163 Orange hills n. Fullerton 76 Comment
  UCR203902  Calandrinia breweri R. E. Riefner Jr. 2008-5-16 08- 86 Orange Irvine Ranch Reserve, north Irvine Ranch, lower eastern Fremont Canyon area, Lakeview SCE Road 549 Comment
  RSA732277  Calandrinia ciliata A. C. Sanders, Fred M. Roberts 2008-4-22 35043 Orange Lomas de Santiago, valley at south end of Loma Ridge and at head of Limestone Canyon, c. 2.5 miles SW of Silverado, above spring shown on topo map. 427 Comment
  RSA743380  Calandrinia ciliata Fred M. Roberts 2008-4-9 6860 Orange Dana Point: Dana Point Headlands, CNLM Preserve near Outlook 2, 0.7 km W Marine Institute (Dana Point Harbor). 52 Comment
  RSA752034  Calandrinia maritima Fred M. Roberts 2008-4-2 6843 Orange Dana Point: Dana Point Headlands, CNLM Preserve south of NE Gate along bluff, 0.6 km W Marine Institute (Dana Point Harbor). 28 Comment
  CDA32189  Callistemon viminalis T. McCrainie, Mark A. Elvin 2006-9-23 7 Orange Southern Coastal; San Joaquin Marsh Freshwater Marsh, UC Natural Reserve; southwest edge, along San Diego Creek, north of University Drive, east of Highway 73. Comment
  CDA5112  Callistemon viminalis R. E. Riefner Jr. 2007-4-1 07 -163 Orange City of Laguna Niguel, Oso Creek, ca 1.5 miles north from Paseo De Colinas Street on Camino Capistrano Street. Comment
  CDA5108  Callistemon viminalis R. E. Riefner Jr. 2006-11-12 06 -669 Orange City of Newport Beach, urban creek draining into San Diego Creek at confluence with Newport Bay near SR-73 overpass. Comment
  RSA542334  Calochortus catalinae Fred M. Roberts 1988-4-10 3918 Orange Lomas De Santiago: Loma Ridge, Lower Santiago Canyon drainage, 1.1kilometer NNW Bolero Lookout. 451 Comment
  RSA625801  Calochortus catalinae Scott D. White, Noel Davis 1998-4-24 6343 Orange Santa Ana Mountains foothills. Mission Viejo Area: Aliso Creek watershed, E of El Toro Road, just N of the junction with Valley Vista Way. Large proposed subdivision called ''Saddleback Meadow.'' 305 Comment
  UCR191243  Calochortus catalinae A. C. Sanders 2008-4-29 35136 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, western end of Loma Ridge on road to sheriff's training facility, c. 1.5 mi. SW of Santiago Reservoir 335 Comment
  SEINET12057832  Calochortus catalinae Unknown 2000-4-17 2987 Orange 1.9 km W of Blind Canyon & 274 m NE of Irvine Park, 244 m SW of MWD access road 220 Comment
Read comments
Oct 13 2017
  RSA679224  Calochortus invenustus Fred M. Roberts 2003-6-25 5946 Orange Santiago peak, north slopes along ridge east of Main Divide truck trail, 0.6km NNW summit. 1605 Comment
  RSA708370  Calochortus invenustus Fred M. Roberts, Robert L. Allen, Chris Barnhill, Nancy Hatfield 2005-5-30 6241 Orange Modjeska Peak summit, c.a. 60m south of highest point. 1675 Comment
  RSA649065  Calochortus plummerae D. E. Bramlet 2000-6-27 3063 Orange Fremont Canyon ridge road at crossing of Edison transmissionlines. NE of the old mine site, S of junction with Blind Canyon access road. 482 Comment
  POM6366  Calochortus splendens Philip A. Munz, L. T. Street, G. Williams 1919-5-3 2625 Orange Santa Ana River Canyon. Comment
  UCR16063  Calochortus splendens K. T. Ingram 1976-5-2 s.n. Orange Peninsular Range; Santa Ana Mtns., Ortega Highway, Route 74, 12 mi. east of Hwy 405 Comment
  RSA0055000  Calochortus splendens Jim Shevock 1970-4-25 153 Orange Near Irvine Lake. 304 Comment
  RSA369038  Calochortus splendens N. C. Cooper 1944-6-4 1316 Orange Elsinore Mountain. 1067 Comment
  RSA0042761  Calochortus weedii J. Vlahos 1934-6-2 s.n. Orange Hills around Orange Co. Park. Comment
  NY1104588  Calochortus weedii var. intermedius L. Abrams 06 1901 1802 Orange Isabuco Canon [Isabuco Canyon] Comment
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Aug 7 2013
  RSA0135555  Calochortus weedii var. intermedius David E. Bramlet 2004-6-3 3596 Orange Peninsular Ranges; Santa Ana Mountains region: Tributary to Williams Cyn, 610m SW of Williams Cyn., & 122mW of the existing access road. 494 Comment
  RSA588986  Calochortus weedii var. intermedius D. E. Bramlet 1994-6-23 2390 Orange San Joaquin Hills. On ridgetop above Upper Shady Canyon. The site is located 640 m N of the Shady-Camarillo Cyn. Road junction and 1.5 km West of Laguna Cyn. Road. 232 Comment
  RSA649066  Calochortus weedii var. intermedius D. E. Bramlet 2000-6-27 3064 Orange Fremont Canyon ridge road at crossing of Edison transmissionlines. NE of the old mine site, S of junction with Blind Canyon access road. 482 Comment
  RSA788916  Calochortus weedii var. intermedius Fred M. Roberts 1999-6-10 5238 Orange Lomas de Santiago: Loma Ridge, Agua Chinon Cyn., 1.3 km S Bolero Spring and 2.2 km W Bolero Lookout. 285 Comment
  SEINET7067528  Calochortus weedii var. intermedius A. G. Vestal 1947-6-12 s.n. Orange Between Aliso Creek and Trabuco Canyon on Little Oak Canyon Road. Coordinate datum: NAD27. UTM Zone 11, 444335mE, 3727266mN. Comment
  UCR133200  Calochortus weedii var. intermedius Adrian Wolf 2000-6-19 462 Orange Santa Ana Mtns., North Ranch Policy Plan Area, 'panhandle' south of Black Star Canyon, east of Black Star Road, north of Baker Canyon 396 Comment
  UCR230826  Calochortus weedii var. intermedius Dick Newell, Don Millar, Shara Harris 2011-6-21 187 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Agua Chinon Wash 225 Comment
  CDA25245  Calycadenia tenella A. C. Sanders, Fred M. Roberts, A. O Neal 2008-5-9 35323 Orange Peninsular Range; Santa Ana Mountains; Weir Canyon, 0.3 mile west of Eastern Transportation Corridor (Highway 241) and 1.45 miles east of south end of Walnut Canyon Reservoir. Comment
  UCR131876  Calystegia macrostegia J. Mallory, V. McCoy 1995-7-3 6454- 129 Orange Santa Ana Mountains: Blind Canyon, c. 0.5 mi. NE of confluence w/ Santiago Canyon Wash; north of Irvine Lake. 300 Comment
  POM65980  Calystegia macrostegia subsp. arida L. R. Abrams 1901-6-14 1800 Orange Trabuco Canyon Comment
  RSA710302  Calystegia macrostegia subsp. arida R. K. Brummitt 1998-5-23 19994 Orange 17 km NE of San Juan Capistrano on Rte. 74. 200 Comment
  SD255134  Calystegia macrostegia subsp. arida R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49796 Orange Santa Ana Mountains: Trabuco Canyon. Comment
  CLARK-A1528-928  Calystegia macrostegia subsp. cyclostegia Patricia A. Andrews 1975-6-26 5907 Orange Capistrano Bay Beach 9 Comment
  CSUSB666  Calystegia macrostegia subsp. cyclostegia Sue Freeman 1966-3-27 Orange Laguna. About 30 yards off Wave Street in Laguna (end of street); on grassy hillside 100 feet above ocean and over crest of hill from it. 30 Comment
  IRVC987  Calystegia macrostegia subsp. cyclostegia M. Savage 1965-3-27 Orange Corona del Mar. Newport Beach Comment
  UCR281536  Calystegia macrostegia subsp. cyclostegia Mitch Provance, Jeremiah George 2017-3-20 317- 124 Orange West Coyote Hills, Fullerton, vicinity of Utility Access Roads E of Gilbert Street and N of Castlewood Dr., on land previously occupied by oil fields. 137 Comment
  CAS-BOT-BC221305  Calystegia macrostegia subsp. intermedia C. B. Wolf 1932-3-6 1865 Orange 2 miles from Orange County Park on road to Anaheim 152 Comment
  RSA697154  Calystegia occidentalis subsp. occidentalis Minor Warne 1934-4-14 s.n. Orange Laguna Canyon. Comment
  CHSC90567  Calystegia soldanella Sean P. Gallagher 1988-4-2 6 Orange Bolsa Chico State Beach ca. 1 mi s of Warner Ave. 0 Comment
  SD38598  Calystegia soldanella Edith A. Purer 1932-8-31 4878 Orange Along Highway 101. Comment
  LA88456  Calystegia soldanella O. H. Kappler; 1943-5-6 411 Orange Huntington Beach Comment
  UCR203973  Camissonia D. E. Bramlet 2008-3-26 4120 Orange Peninsular Range; Santa Ana Mountains, Bee Canyon, Bowerman landfill site. 202 m south of the Bee Canyon access road and 151 m west of the active landfill entrance 295 Comment
  RSA159495  Camissonia bistorta Thomas Craig 1928-3-31 778 Orange Santa Ana Mountains, Silverado Canyon. Comment
  RSA751983  Camissonia bistorta Fred M. Roberts 2008-3-27 6802 Orange Dana Point: Dana Point Headlands, CNLM Preserve near NE Gate, 0.5km W Marine Institute (Dana Point Harbor). 75 Comment
  RSA498  Camissonia californica J. T. Howell 1927-6-5 39 Orange Rancho Santa Ana, near east boundary. 152 Comment
  UCR190975  Camissonia californica A. C. Sanders, Fred M. Roberts 2008-4-22 35002 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hicks Canyon haul road, just above Irvine Ranch gate and road to cement plant, c. 1 mile NE of Rattlesnake Reservoir 244 Comment
  POM123008  Camissonia cheiranthifolia subsp. suffruticosa Marcus E. Jones 1924-8-26 s.n. Orange Newport. Comment
  RSA683166  Camissonia intermedia Scott D. White, Amanda Duchardt 2003-4-10 9018 Orange Santa Ana Mountain Foothills: Ridges & east-facing canyons above Trampas Canyon. 122 Comment
  UCSB48375  Camissoniopsis bistorta Roberts, Fred 1982-5-22 Orange Dana Point: jct. of Stone Hill Dr. and Selva Road, 1.0km ESE Dana Hills High School; 1.7km SW Marco Forster Junior High School 40 Comment
  UC1719511  Camissoniopsis cheiranthifolia subsp. cheiranthifolia D. Atwood 1993-3-26 17699 Orange Corona Del Mar State Park along Newport Coast Drive 0 Comment
  UC306300  Camissoniopsis cheiranthifolia subsp. suffruticosa D. L. Crawford 1916-7-28 Orange Abalone Point Laguna Beach Region (sand dunes) Comment
  UC523554  Camissoniopsis cheiranthifolia subsp. suffruticosa David D. Keck 1933-9-21 2523 Orange dunes about town Sunset Beach Comment
  UCSB48073  Cardamine californica Roberts, Fred 1981-4-11 Orange Santa Ana Mtns.; San Juan Canyon, Hwy. 74, 2.3 km. ENE San Juan Guard Station; 0.4 km. W of Bench Mark 1100 315 Comment
  RSA696167  Cardaria draba Keith E. Hoffmaster 1932-5-30 s.n. Orange Santa Ana. Comment
  POM436  Cardionema ramosissimum Daniel J. Crawford s.n. Orange Laguuna Beach region. Comment
  CAS-BOT-BC282975  Carduus pycnocephalus Steve Boyd; Tim Ross 1992-5-19 7427 Orange S Santa Ana Mountains, San Mateo Canyon Wilderness Area. W edge of the wilderness along Lucas Canyon Trail from access road to Rancho Carrillo (7S06) N into Aliso Canyon 457 Comment
  RSA0015961  Carduus pycnocephalus Fred M. Roberts 2012-4-24 7532 Orange San Joaquin Hills: Buck Gully, above main trail, 2 km W Signal Peak and about 0.4 km S San Joaquin Hills Road. 155 Comment
  RSA647884  Carduus tenuiflorus Mark Breidenbaugh, Caralisa Breidenbaugh 1992-5-24 42 Orange 1000 ft. northwest of Chino Hills State Park Boundary. 243 Comment
  RSA653213  Carduus tenuiflorus David Barrios 1991-5-8 31 Orange 1500 ft. Northwest of Fairmont Ave and Quail cir. 365 Comment
  CAS-BOT-BC17635  Carex alma Helen D. Geis 1902-1-1 503 Orange Near Santa Ana. Comment
  CAS-BOT-BC118503  Carex praegracilis Helen D. Geis 1902-4-1 s.n. Orange Santa Ana Comment
  POM193572  Carex praegracilis Helen D. Geis 1902-1 505 Orange Orange County. Comment
  RSA594884  Carex praegracilis Fred M. Roberts, D. Stadlander, R. Vizgirdas 1992-4-24 4839 Orange El Toro Marine Base: just west of Borrego Wash, 2.7 kilometers SE Lambert Reservoir dam. 171 Comment
  UC212053  Carex praegracilis D. L. Crawford 1916-3-15 726 Orange Santa Ana river Comment
  CDA25905  Carpobrotus chilensis Mark A. Elvin, D. G. Kelch 2006-12-9 5292 Orange Southern Coastal; Newport Backbay; Big Canyon, lower end. Comment
  RSA696447  Carpobrotus chilensis Minor Warne 1934-4-7 s.n. Orange New Port Beach Comment
  CDA6923  Carthamus creticus M. K. Bellue 1945-5-8 Orange Tonner Canyon - Union Oil. 0 Comment
  HSC20510  Castilleja affinis S. M. Clapp 1966-4-7 16 Orange 3 mi. from Modjeska Canyon towards Silverado Canyon 152 Comment
  RSA683065  Castilleja affinis Fred M. Roberts 2003-3-19 5608 Orange Donna O'Neill Land Conservancy: Ridges west of Cristianitos Cyn., 1,750m NNW Sycamore gate and 315m W Cristianitos Rd. (Canada Gobernadora) 192 Comment
  UCR150610  Castilleja affinis Scott D. White 1997-5-6 5044 Orange Peninsular Ranges; Santa Ana Mountains, Lomas de Santiago. Santiago Canyon area: Ridgetop road N and west of Bolero Lookout 488 Comment
  UCR228782  Castilleja affinis Dick Newell, Don Millar 2011-5-3 143 Orange Coastal Plains, San Joaquin Hills, Laguna Canyon Wilderness Park, Willow Trail 160 Comment
  RSA0010908  Castilleja affinis Keith E. Hoffmaster 1927-4-8 530 Orange Santa Ana Mountains. Comment
  RSA658309  Castilleja angustifolia Steve Teh, Marie Gabbard 1994-4-28 18 Orange Modjeska Grade Rd. 1/2 mile back on fire rd. Comment
  RSA221095  Castilleja applegatei subsp. martinii E. W. Lathrop 1966-5-1 6254 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland Nat'l Forest, Santa Ana Mountains. 396 Comment
  POM8764  Castilleja foliolosa P. A. Munz, R. D. Harwood 1920-4-24 3745 Orange Sierra [Freemont] Canyon, Santa Ana Mts. 366 Comment
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Sep 25 2011
  UCR175052  Castilleja foliolosa Vanessa Lee 2005-4-24 s.n. Orange South Coast, Crystal Cove, Laguna Beach, above Pacific Coast Highway 61 Comment
  UCSB27031  Castilleja foliolosa Daniel, Dick 1964-3-28 Orange 5.1 miles northwest of junction of Silverado Canyon and Santiago Canyon Roads; up Silverado Canyon Road, about 10 miles west of Irvine Lake; 17 miles by air east of Orange Comment
  UCSB45138  Castilleja foliolosa Woicik, Richard 1976-5-21 Orange Modjeska Canyon; near fire station Comment
  RSA588889  Castilleja minor subsp. spiralis Fred M. Roberts Jr. 1990-6-4 4665 Orange Hall Canyon, 1.8 km NNW Mustang Spring at east edge of Flying B Ranch 421 Comment
  UCR190976  Caulanthus heterophyllus A. C. Sanders, Fred M. Roberts 2008-4-22 35001 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hicks Canyon haul road, just above Irvine Ranch gate and road to cement plant, c. 1 mile NE of Rattlesnake Reservoir 244 Comment
  UCSB31585  Ceanothus crassifolius Proctor, Donald 1962-3-18 Orange Silverado Canyon, Santa Ana Mts, 914 Comment
  SEINET13945802 Image available Ceanothus crassifolius S. Lambert 1981-1 1901 Orange Along hwy 74 17.4 mi E of jct with hwy 5, 2100 ft elev. 640 Comment
  SBBG104029  Ceanothus crassifolius var. crassifolius B. Pitzer, S. Hemstreet 1992-5-21 1949 Orange St Hwy 74, 1 mi uphill from the 2000 ft marker, and to the left ca. 0.1 mi on old paved rd 762 Comment
  RSA798542  Ceanothus integerrimus Robert F. Thorne, E. W. Lathrop 1977-5-18 49742 Orange Santa Ana Mountains: summit of Santiago Peak. 1733 Comment
  RSA30303  Ceanothus leucodermis Carl B. Wolf 1941-8-15 11254 Orange W. slope of Santiago Truck Trail. 4.4 mi. below mai divide motorway. 1067 Comment
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Sep 20 2013
  UCR222392  Ceanothus megacarpus Mark A. Elvin, Laura Soloro, Adam Sriro 2003-1-10 2221 Orange Peninsular Range; Santa Ana Mtns., c. 1.6 mi. west of Sierra Peak along road to powerlines, near Claymont Clay Mine 457 Comment
  UCR52605  Ceanothus megacarpus Jeri Hirshberg 1988-6-7 s.n. Orange Santa Ana Mountains, Santa Ana Mountains 275 Comment
  RSA542420  Ceanothus megacarpus var. megacarpus Fred M. Roberts, Karlin G. Marsh, Gordon Marsh 1988-4-26 3953 Orange San Joaquin Hills: hill between Pelican and Signal Hills, 0.8km ENE Pelican Hill. 207 Comment
  UCD169752  Ceanothus oliganthus R. F. Thorne; C. W. Tilforth, E. W. Lathrop 1977-4-27 49701 Orange Northern Santa Ana Mountains: Sierra Peak. 899 Comment
  RSA748818  Ceanothus palmeri G. Gust, L. Nye 2005-3-12 563 Orange Cleveland National Forest, on Hwy 74 ca. 0.5 m W of county boundary with Riverside at a pullout. 401 Comment
  CDA23123  Ceanothus spinosus Scott D. White, J. Wood 2008-4-1 11848 Orange Chino Hills; Powerline access road just north of CHSP boudary and just west of Orange/San Bernardino county line. Approximately 1 mile northwest of Gilman Peak. Comment
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Nov 19 2013
  RSA542410  Ceanothus spinosus Fred M. Roberts 1988-3-15 3855 Orange Rancho Mission Viejo: Verdugo Canyon, 0.8 km SE Lucas Survey Mark. 247 Comment
  RSA735028  Ceanothus spinosus Scott D. White, Justin M. Wood 2008-4-10 11848 Orange Chino Hills: Powerline access road just N of CHSP boundary and just W of Orange/SB co. line. Approx. 1 mi. NW of Gilman Peak. 366 Comment
  PASA2518  Ceanothus tomentosus Frank W. Peirson 1922-5-19 Orange Small canyon heading eastward from the Santa Ana Canyon at 400 ft. Comment
  RSA77337  Ceanothus tomentosus F. W. Peirson 1922-5-19 3050 Orange small canyon heading eastward from the Santa Ana River Canyon 122 Comment
  UCR217287  Ceanothus tomentosus subsp. olivaceus Mark A. Elvin, Laura Soloro, Adam Sriro 2003-1-10 2214 Orange Peninsular Range; Santa Ana Mtns., c. 1.6 mi. west of Sierra Peak along road to powerlines, near Claymont Clay Mine 457 Comment
  RSA1445  Ceanothus tomentosus var. olivaceus J. T. Howell 1929-2-11 1224 Orange trail from [Claymine] Canyon to Sierra Peak, Santa Ana Mts. 335 Comment
  LA97592  Ceanothus verrucosus D. S. Verity; Fred Lang 1972-1-7 sn Orange hills behind South Laguna Comment
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Nov 26 2016
  UCR192075  Centaurea melitensis A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35276 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir 300 Comment
  POM202165  Centaurea melitensis L. M. Booth 1932-5-26 1117 Orange Newport Bay. Comment
  UCR93176  Centaurea repens Jan West 1994-9-15 s.n. Orange Irvine, Jamboree Rd. 61 Comment
  IRVC19363  Centaurium venustum R. L. Allen Jul 1977 s.n. Orange Santa Ana Mountains; [San Juan Canyon], Ortega Hwy, road side 111. Peninsular Ranges Comment
  JEPS38139  Centromadia parryi subsp. australis L. M. Booth 1933-10-18 Orange Newport Comment
  SD133178  Centromadia parryi subsp. australis D. Bramlet 1990-11-3 2064 Orange West side upper Newport Back Bay, 50 meters northwest of the Delhi Channel. Comment
  SD134529  Centromadia parryi subsp. australis Craig Reiser 1991-3-19 Orange Newport Beach Bay, W of Delhi Channel Comment
  RSA655624  Centromadia pungens subsp. pungens C. Sprenger 2000-8-29 s.n. Orange Chino Hills. The site is located some 915m northeast from Palm Ae. (City of Yorba Linda), and 976m south of Telegraph Canyon Creek. 213 Comment
  IRVC25032  Cerastium fontanum subsp. vulgare Fred M. Roberts 1986-8-26 3086 Orange University of California campus, Alderich Park just north of Engineering Building; Irvine 26 Comment
  UCR100180  Cercocarpus betuloides Scott D. White 1996-12-20 4637 Orange Santa Ana Mountains, above Modjeska Canyon; proposed water tank site 488 Comment
  SBBG14720  Cercocarpus betuloides var. betuloides P. H. Raven 1962-5-18 17753 Orange Main Divide Truck Trail at saddle ca. 1 mi N of Santiago Peak 1493 Comment
  UC1234770  Cercocarpus betuloides var. betuloides Peter H. Raven 1962-5-18 17753 Orange about 1 mi n of Santiago Peak (Main Divide Truck Trail); Santa Ana Mountains, Main Divide Truck Trail 1493 Comment
  SBBG128666  Cercocarpus betuloides var. betuloides R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49704 Orange Sierra Peak; Santa Ana Mtns 900 Comment
  CAS-BOT-BC279503  Chaenactis artemisiifolia P. A. Munz 1923-6-14 7057 Orange Santa Ana Mts., Glen Ivy Trail to Santiago Peak 1066 Comment
  CLARK-A1528-1693  Chaenactis artemisiifolia John C. Roos 1965-6-16 Orange Dana Point Comment
  RSA695494  Chaenactis glabriuscula Minor Warne 1934-4-28 s.n. Orange Ladd Canyon-Santa Ana Mts Comment
  SD144055  Chaenactis glabriuscula Scott D. White 1997-3-28 4852 Orange Above Modjeska Canyon: Proposed water tank site. 424 Comment
  UCR192486  Chaenactis glabriuscula A. C. Sanders, Fred M. Roberts 2008-3-25 34513 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  UCR234453  Chaenactis glabriuscula Dick Newell, Don Millar 2012-4-10 245 Orange Peninsular Range; Santa Ana Mtns., Lakeside Rd. just off Black Star Canyon Rd., near State Spur Rd. 260 Comment
  UCSB48214  Chaenactis glabriuscula Roberts, Fred 1981-5-3 Orange Santa Ana Mtns.; Hot Springs Canyon, 0.8 km. by road N of San Juan Guard Station 256 Comment
  RSA603363  Chaenactis glabriuscula var. glabriuscula Scott D. White, B. Leatherman 1997-6-12 5344 Orange East of San Juan Capistrano: San Juan Creek beteen Highway 74 bridge and Mission Vieja site, i.e. ca. 2 - 4 miles E of I-15 [Interstate 5] / Highway 74 junction. 46 Comment
  UCR143159  Chaenactis glabriuscula var. orcuttiana F. W. Peirson 1924-5-31 4671 Orange Coastal Plains and Basins; South Coastal Plains region, 5 miles southeast of Laguna Beach Comment
  IRVC29724  Chamaesyce albomarginata Mark A. Elvin, Barry S. Nerhus 2006-11-4 5255 Orange Huntington Beach; 1.5 km SW of Wintersburg, SW of jct Slater and Goldenwest; Shipley Nature Center. Southern Coastal 1 Comment
  RSA734740  Chamaesyce albomarginata L. C. Wheeler 1946-8-8 6225 Orange Imperial Highway 1/4 mi. west of Caroline Ave, 2 mi. east southeast of Brea. Comment
  CDA28633  Chamaesyce maculata Mark A. Elvin, D. G. Kelch 2006-12-9 5301 Orange Southern Coastal; Newport Backbay; Big Canyon, lower end. Comment
  RSA702691  Chamaesyce polycarpa Scott D. White, Michael Honer 2004-5-17 10394 Orange South Coast: City of Laguna Niguel. Ridges and open slopes directly north of the intersection of Crown Valley Parkway and Pacific Island Dr. 61 Comment
  IRVC846  Chamomilla suaveolens C. Weir 1965-4-17 Orange Newport Beach; Balboa Island. Southern Coastal Comment
  RSA685788  Cheilanthes J. F. James 1879-4-11 212 Orange San Juan Capistrano Comment
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Nov 22 2013
  IRVC19189  Cheilanthes newberryi Gordon A. Marsh, K. G. Marsh 1983-10-23 Orange Canyon Acres Canyon; in crevices on cliff north of creek. Laguna Beach Comment
  UCD137350  Cheilanthes newberryi Beecher Crampton 1963-5-7 6788 Orange Santa Ana Mountains, Lower San Juan Canyon, ca. 11 miles northeast of San Juan Capistrano, State Hwy. 74. Comment
  RSA731952  Chenopodium ambrosioides Fred M. Roberts 2007-12-12 6706 Orange Santa Ana Canyon: Santa Ana River, south of Green River Golf course on south side of river, 0.4km E Coal Cyn. Rd. and 0.7km W Riverside Co. line. 129 Comment
  RSA798190  Chenopodium ambrosioides R. F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49589 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74) Comment
  UCR197684  Chenopodium ambrosioides A. C. Sanders, Fred M. Roberts 2008-9-18 36062 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge 330 Comment
  RSA696276  Chenopodium ambrosioides Keith E. Hoffmaster 1934-7-3 s.n. Orange near Costa Mesa Comment
  RSA64759  Chenopodium ambrosioides var. ambrosioides F. W. Peirson 1924-8-29 5079 Orange 6 miles from Balboa on road inland along creek. Comment
  UCR233741  Chenopodium berlandieri Fred M. Roberts 2008-6-26 7061 Orange Santa Ana Mtns. Foothills, Lomas de Santiago; Loma Ridge along West Loma Ridge Road, c. 1 km north of Haul Road, 2.5 km NNW of Bee Peak, Irvine Ranch Land Conservancy 382 Comment
  POM201965  Chenopodium berlandieri var. sinuatum L. M. Booth 1932-6-29 1228 Orange Newport Bay. Comment
  UCSB21071  Chenopodium californicum Merrill, Roy 1965-4-11 Orange 11.5 miles on State Highway 74 east of 101, Santa Ana Mtns. 274 Comment
  UCR237847  Chenopodium glaucum Mark A. Elvin 2003-2-2 2276 Orange South Coast, San Joaquin Marsh, UCI campus SSE of intersection of Jamboree Blvd. and Campus Dr. 2 Comment
  RSA793261  Chenopodium macrospermum R. F. Thorne 1984-1 s.n. Orange Newport Back Bay Comment
  UCD98280  Chenopodium macrospermum B. Pitzer 1996-4-30 2785 Orange Upper Newport Bay: Calif. Dept. Fish and Game Ecological Reserve, off (W of) Jamboree Rd. 1 Comment
  UCR136806  Chenopodium macrospermum A. C. Sanders, Mark A. Elvin 2003-11-9 27366 Orange Southern Coastal Slope, Irvine, San Joaquin Marsh adjacent to UCI Arboretum, UCI campus near intersection of Jamboree Blvd. and Campus Dr. 2 Comment
  UCR27598  Chenopodium macrospermum John C. Roos 1949-10-1 4681 Orange South Coast, Doheny Beach 0 Comment
  RSA48861  Chenopodium macrospermum var. farinosum J. C. Roos 1949-10-1 4681 Orange Doheney Beach. [Now Capistrano Beach] Comment
  IRVC385  Chenopodium murale McGuire 1965-4-17 Orange Corona del Mar. Newport Beach Comment
  UCR193780  Chenopodium murale A. C. Sanders, Fred M. Roberts 2008-7-3 35686 Orange Peninsular Range; Santa Ana Mtns., upper Weir Canyon, along Windy Ridge Rd. at huge sandstone boulder (visible on Google Earth), 1.3 mi. SE of Walnut Canyon Reservoir 314 Comment
  UCSB50639  Chlorogalum pomeridianum Roberts, Fred 1982-7-7 Orange South Laguna; Niguel Hill, 1.4 km. ESE Aliso Peak; 2.6 km. SSW Niguel Fire Station 207 Comment
  UC1618023  Chorizanthe Donald G. Nelson 1935-4-6 250 Orange e. San Juan Capistrano (and just s. of boundary of Cleveland Nat'l Forest) Comment
  UC1608267  Chorizanthe fimbriata var. fimbriata Steve Boyd, Tim Ross 1992-5-20 7474 Orange western edge of San Mateo Canyon Wilderness Area in Lucas Canyon (along foot trail upstream from end of old roadgrade to upper homestead (corrugated steel building)); Southern Santa Ana Mountains, San Mateo Canyon Wilderness Ar 350 Comment
  CAS-BOT-BC257199  Chorizanthe procumbens Clare B. Hardham 1962-4-4 8944 Orange Dana Point - (Beach) Comment
  RSA588983  Chorizanthe procumbens D. E. Bramlet 1994-6-2 2379 Orange San Joaquin Hills. On ridgeline north of Little Sycamore Canyon. The site is located 244m NE of Little Sycamore Canyon and 488m west of Laguna Cyn. Road. 165 Comment
  RSA739343  Chorizanthe procumbens Keith E. Hoffmaster 1935-4-19 298 Orange Santiago can. near Silverado ca., Santa Ana Mountains. Comment
  SD134406  Chorizanthe procumbens Craig Reiser 1991-4-18 Orange Dana Point Headlands Comment
  UCR143496  Chorizanthe procumbens D. E. Bramlet 1994-6-2 2379 Orange Coastal Foothills, San Joaquin Hills; ridgeline north of Little Sycamore Canyon, 244m NE of Little Sycamore Canyon and 488m west of Laguna Cyn. Road 165 Comment
  UCR4086  Chorizanthe procumbens Carole Sims 1965-3-28 s.n. Orange South Coastal Plains, Salt Creek Road off Pacific Coast Highway, between South Laguna and Dana Point 18 Comment
  RSA542533  Chorizanthe procumbens Bill O'Connell 1991-5-31 6 Orange Pelican Hill: west summit. 190 Comment
  RSA65270  Chorizanthe procumbens F. W. Peirson 1924-5-30 6022 Orange Southward from Canada Salada. Comment
  CAS-BOT-BC255251  Chorizanthe staticoides P. C. Everett 1935-4-29 6711 Orange Santa Ana Canyon, 7/10 mile W of Esperanza 152 Comment
  CAS-BOT-BC255254  Chorizanthe staticoides Agnes M. Bowman 1899-6-1 s.n. Orange Santiago Cr. Comment
  CAS-BOT-BC255256  Chorizanthe staticoides John Thomas Howell 1927-6-8 2455 Orange Southern Puente Hills in the Santa Ana Canyon 182 Comment
  RSA584707  Chorizanthe staticoides Fred M. Roberts, Kathy Keane 1988-5-26 4009 Orange Rancho Mission Viejo: Christianitos Canyon, c.a. 3.7 km ESE Viejo Survey Mark. 185 Comment
  RSA751171  Chorizanthe staticoides D. E. Bramlet 2008-6-3 4285 Orange Upper Borrego Cyn, 136m SE of the access road and 1.5km west of Santiago Cyn Road 433 Comment
  UC1175013  Chorizanthe staticoides E. K. Balls 1958-6-26 23814 Orange Comment
  CAS-BOT-BC502068  Chrysanthemoides monilifera R. E. Riefner, Jr. 2012-2-23 12 -44 Orange City of Laguna Beach, S of Goff Island, Montage Resort, Treasure Island Park, W of Pacific Coast Hwy 7 Comment
  UCR150049  Chrysanthemum coronarium L. C. Wheeler 1947-5-3 6474 Orange Newport Bay, Newport Bay Comment
  RSA741480  Chrysanthemum coronarium R. E. Riefner 2008-5-22 09 -113 Orange Near City of Orange, Santiago Creek, vicinity of Hangman's Tree Canyon, Santiago Creek Rd., Irvine Ranch Reserve, Management Area 15. Comment
  POM48464  Cirsium arvense F. W. Peirson 1924-10-19 5248 Orange Wintersberg. Comment
  POM352202  Cirsium occidentale var. occidentale M. B. Dunkle 1933-5-30 3582 Orange Santa Ana Canyon Comment
  RSA234513  Cirsium vulgare James Henrickson 1970-7-25 5066 Orange 2 miles N of Huntington Beach along NE margin of Bolsa Chica Salt March. 0 Comment
  UCR193012  Cirsium vulgare A. C. Sanders, Fred M. Roberts 2008-6-17 35459 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Hicks Canyon Haul Road 0.5 mi. east of the Foothill Transportation Corridor 244 Comment
  RSA783257  Clarkia J. D. Olmsted 1959-4-23 455 Orange Spring Trail at Beacon Pines Ranch; 9 miles SW of Corona. 762 Comment
  RSA0013955  Clarkia bottae Fred M. Roberts 2008-5-7 6942 Orange Lomas de Santiago: Loma Ridge, Limestone Ridge between Dripping Spr. and Limestone Cyn., 3.5 km NW Bolero Lookout and 1.7 km E Bee Peak. Irvine Ranch Conservancy. 481 Comment
  RSA73302  Clarkia bottae F. W. Peirson 1924-5-31 4661 Orange Laguna Canyon, near Laguna Beach. 61 Comment
  POM6353  Clarkia dudleyana L. T. Street, Williams 1919-5-10 2752 Orange Turnbull Canyon. Near Whittier 305 Comment
  POM256966  Clarkia purpurea subsp. quadrivulnera W. Pequegnat 1940-6-15 s.n. Orange Santa Ana Mountains: Modjeska Flat. 1372 Comment
  CAS-BOT-BC233841  Claytonia parviflora subsp. parviflora Helen D. Geis 1904-4-1 758 Orange Silverado Canyon, Santa Ana Mts. Comment
  UCR190973  Claytonia perfoliata A. C. Sanders, Fred M. Roberts 2008-4-22 35036 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Limestone Canyon, c. 2 miles SW of Silverado 396 Comment
  UCR218458  Claytonia perfoliata subsp. mexicana Robert DeRuff 2008-1 563 Orange South Coast, Upper Newport Bay, below intersection of Back Bay Dr. and East Bluff Dr. 12 Comment
  RSA699297  Claytonia perfoliata subsp. perfoliata R. H. McArthur 1934-3-3 s.n. Orange Forks of Laguna Canyon Comment
  RSA663157  Clematis lasiantha R. E. Riefner 2000-6-1 20 -455 Orange NCCP North Ranch Policy Plan Area. N of Irvine Lake and W of Black Star Cyn; W. of dirt access rd. 473 Comment
  UCR234160  Clematis lasiantha Dick Newell, Judy Booth 2012-3-25 236 Orange Peninsular Range; Santa Ana Mtns., Maple Springs Road, 1.5 miles above Maple Springs entrance 615 Comment
  POM188  Clematis ligusticifolia E. A. Zumbro 1902-1 s.n. Orange [Unspecified] Comment
  UC1201823  Clematis pauciflora R. W. 1933-4-1 Orange near Capistrano Comment
  SEINET945698  Clitoria mariana Paul O. Schallert 1949-1 4870 Orange Near Maitland. Comment
  RSA449088  Cneoridium dumosum Unspecified s.n. Orange Laguna Beach. Comment
  RSA449089  Cneoridium dumosum Thekla Mohr 1517 Orange Laguna. Comment
  UCR227635  Collinsia parryi Robt. L. Allen, Fred M. Roberts, Christopher M. Barnhill 2003-4-26 12365 Orange Santa Ana Mountains, San Juan Canyon, San Juan Loop Trail near Upper San Juan Campground 523 Comment
  POM15031  Comarostaphylis diversifolia subsp. diversifolia Mary F. Spencer 1932-05 1971 Orange Canyon Prope. 61 Comment
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Nov 19 2013
  SBBG128671  Comarostaphylis diversifolia subsp. diversifolia R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49607 Orange tributary to San Juan Cyn, along Ortega Hwy (74) ca. 2 mi above San Juan Fire Station; Santa Ana Mtns Comment
  UCSB48373  Conium maculatum Roberts, Fred 1982-5-22 Orange Dana Point: jct. of Stone Hill Dr. & Selva Rd.; 1.0 km ESE Dana Hills High School; 1.7 km SW Marco Forster Junior High School 40 Comment
  RSA184134  Convolvulus arvensis I. L. Wiggins 1965-9-3 20317 Orange Roadside along Yorba Linda Boulevard, between State College Boulevard and Placentia Avenue, Fullerton. Comment
  RSA0127343  Convolvulus simulans Fred M. Roberts 2016-4-29 8046 Orange Lomas de Santiago: north of Santiago Canyon Road, southwest slope of hill marked 1332 on topo maps, just west of Irvine Lake, 1.6 km S Irvine Lake dam spillway and 0.8 km NW Irvine Lake Park. 335 Comment
  RSA0127597  Convolvulus simulans Fred M. Roberts, Jutta Burger 2016-3-22 8027 Orange Lomas de Santiago: west of Irvine Lake and north of Santiago Canyon Road, south slopes of Hill 1322, 2.0 km S Irvine Lake Dam spillway and 0.9km W Irvine Lake Park. 271 Comment
  CAS-BOT-BC285928  Conyza bonariensis Ira L. Wiggins 1965-11-5 20321 Orange Near corner of Dowling St. and Crowther Ave., Placentia Comment
  CAS-BOT-BC286165  Conyza canadensis Ira L. Wiggins 1965-10-24 20286 Orange At corner of Yorba Linda Blvd. and State College Blvd., Fullerton Comment
  UC537038  Conyza canadensis Lawrence M. Booth 1932-12-13 1375 Orange Newport Bay Comment
  RSA91008  Conyza canadensis F. W. Peirson 1924-10-19 5242 Orange Wintersberg. Comment
  IRVC25210  Conyza coulteri Fred M. Roberts 1986-10-31 3192 Orange Seal Beach Naval Weapons Station: Anaheim Bay, vicinity of Hog Island. on berm along margin of upper coastal salt marsh. southern coastal 0 Comment
  IRVC25167  Conyza coulteri Fred M. Roberts 1986-10-16 3157 Orange Irvine: Michelson Dr. between Carlson Ave. and San Diego Creek. southern coastal 8 Comment
  CHSC22354  Cordylanthus maritimus Robert A. Schlising 1972-5-1 3017 Orange Upper Newport Bay, east of Costa Mesa; saltmarsh along Bayside Drive. Comment
  UC1736370  Cordylanthus maritimus subsp. maritimus Dean W. Taylor 1994-6-7 14412 a Orange Newport Bay; along Backbay Drive at the junction with San Joaquin Hills Drive 6 Comment
  SEINET3079825 Image available Cordylanthus rigidus Kathy Harper 1988-7-16 Orange Cleveland National Forest, on Hwy 74 near El Cariso. Comment
  CAS-BOT-BC287841  Coreopsis californica Miss. Helen D. Geis 1904-4-1 732 Orange Silverado Canon, Santa Ana Mts Comment
  RSA749039  Coreopsis tinctoria A. C. Sanders, Fred M. Roberts 2008-8-7 35981 Orange lower Weir Canyon, at narrow gorge c. 0.6 mi. above mouth of cyn at Irvine Ranch gate. 185 Comment
  RSA699554  Corethrogyne filaginifolia L. C. Hull 1934-4-15 s.n. Orange Laguna Hills Comment
  RSA753485  Corethrogyne filaginifolia A. C. Sanders, Fred M. Roberts 2008-9-18 36085 Orange Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge 320 Comment
  UCSB52401  Corethrogyne filaginifolia Roberts, Fred 1982-9-15 Orange Rancho Mission Viejo; Rte. 74, 6.6 km. by road ENE San Juan Capistrano; 0.9 km. Viejo Peak 93 Comment
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Jan 25 2020
  SEINET11843910  Corethrogyne filaginifolia var. virgata S. A. Thompson, Rawlins, J. E. 1988-1 5265 Orange Cleveland National Forest, 3.8 mi E of San Juan Hot Springs on CA 74 370 Comment
  JEPS14133  Coriandrum sativum Alice King March 1908 Orange Anaheim Comment
  JEPS50151  Cornus sericea subsp. sericea Lawrence M. Booth 1932-7-19 1278 Orange Bolsas Creek Comment
  UCR193622  Coronopus didymus A. C. Sanders, T. B. Salvato 2008-5-13 35374 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Canyon above (S of) mouth of Hangman Tree Canyon, just below Modjeska Canyon confluence 366 Comment
  CAS-BOT-BC287225  Cotula australis Ira L. Wiggins 1966-3-4 20491 Orange Shoulder of Peralta Ave, near junction of Newport Freeway and Riverside Highway Comment
  RSA696050  Cotula australis Kenneth Beard 1934-03 s.n. Orange Beneath tree on High School campus. Comment
  CHSC35478  Cotula coronopifolia Thomas Eakle 1971-5-28 148 Orange Ca. 2 mi. NE of Newport at Newport Bay Saltmarsh. 3 Comment
  CLARK-A1528-929  Cotula coronopifolia Patricia A. Andrews 1975-6-26 5921 Orange Capistrano Bay Beach 9 Comment
  IRVC16765  Cotula coronopifolia J. B. Anderson 1966-4-16 582 Orange Newport Beach; Corona del Mar; Buck Gully; "Little Corona Beach"; moist canyon bottom with small brooklet near stream. Southern Coastal 0 Comment
  UCD130917  Cotula coronopifolia H. Wahlberg 1923-3-13 s.n. Orange Santa Ana. Comment
  CAS-BOT-BC77624  Cotyledon Reid Moran 1993-6-30 31095 Orange South slope above 1500 Coast Highway, Newport Beach 15 Comment
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Dec 20 2019
  UCR215302  Crassula tillaea Fred M. Roberts 2008-3-27 6807 Orange South Coast, Dana Point; Dana Point Headlands, Center for Natural Lands Mgmt. Preserve, 0.8 km west Marine Institute, Dana Point Harbor 75 Comment
  POM6361  Cressa truxillensis P. A. Munz 1919-5-4 2687 Orange Laguna Comment
  RSA643445  Cressa truxillensis R. D. Goeden, D. W. Ricker 1965-7-7 s.n. Orange Tustin township, near Peters Canyon Channel, E of Santa Ana Marine Corps Air Station. 61 Comment
  RSA785322  Croton californicus Dick Newell, Don Millar 2010-4-27 027 Orange Lomas de Santiago, Limestone Ridge Rd. at junction of Markel Spur Rd., overlooking The Sinks 427 Comment
  UCSB52903  Crypsis schoenoides Roberts, Fred 1983-9-29 Orange San Joaquin freshwater Marsh; UC Irvine Campus, 1.6 km NNW UCI campus center 2 Comment
  RSA0073640  Cryptantha clevelandii Fred M. Roberts 2010-3-12 7179 Orange Southeast Coast: DANA POINT HEADLANDS: Harbor Point Park, South of Green Lantern and west of Dana Point Harbor, c.a. 150 meters SE Interpretive Center. 50 Comment
  RSA0094683  Cryptantha clevelandii var. florosa F. M. Reed 1925-5-14 4986 Orange Aliso Canon. Comment
  JEPS67671  Cryptantha intermedia Alice King 1908-3-9 Orange Anaheim plain Anaheim Comment
  RSA732088  Cryptantha intermedia A. C. Sanders, Fred M. Roberts 2008-3-25 34546 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  RSA737545  Cryptantha intermedia Fred M. Roberts 2008-3-12 6716 Orange Dana Point: Dana Point Headlands CNLM Preserve, western side, c.a. 0.8 km W Marine Institute (Dana Point Harbor). 50 Comment
  UC971737  Cryptantha intermedia L. M. Booth 1932-5-12 1028 Orange Newport Bay Comment
  UCD119839  Cryptantha intermedia Beecher Crampton 1967-5-23 7957 Orange 4 miles east of Irvine UC - South Coast Field Station. Comment
  RSA0051392  Cryptantha intermedia var. intermedia Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49663 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. Comment
  IRVC1638  Cryptantha microstachys Fred M. Roberts 1985-4-8 1638 Orange San Joaquin Hills, Turtle Rock area, hill 1.1km SE French Hill, Irvine 196 Comment
  RSA539399  Cryptantha microstachys Fred M. Roberts, Carol A. Roberts 1988-6-2 4038 Orange Santa Ana Mtns: Silverado Canyon, Maple Springs Truck Trail, 4.3km above gate. 1.0km WSW Bald Peak. 817 Comment
  RSA699870  Cryptantha microstachys Dorothy Sommis s.n. Orange Trabuco Canyon Comment
  IRVC16577  Cryptantha microstachys Gordon A. Marsh 1977-3-12 Orange [San Juan Canyon], Ortega Hwy, gully 2.6mi E San Juan Fire Station. Santa Ana Mountains Comment
  RSA0029035  Cryptantha microstachys Keith E. Hoffmaster 1934-4-22 349 Orange Santiago Canyon near Silverado. Comment
  RSA1698  Cryptantha muricata C. B. Wolf 1931-3-6 1839 Orange Trabuco Canyon, 1/2 mile above Trabuco Oaks, west slope of Santa Ana Mountains. 457 Comment
  IRVC20157  Cryptantha muricata var. muricata R. L. Allen 1977-4-16 Orange 0.7km N La Novia bridge; west of water path. San Juan Capistrano Comment
  RSA0079591  Cryptantha muricata var. muricata J. T. Howell 1928-2-25 846 Orange Nolina Canyon, Rancho Santa Ana. 152 Comment
  RSA39346  Cucurbita digitata E. L. Paddock 1948-6-16 12734 Orange N of Sante Fe Railroad Tracks opposite Yorba Cemetery Comment
  RSA732269  Cucurbita foetidissima A. C. Sanders 2008-4-29 35141 Orange Lomas de Santiago, western end of Loma Ridge on road to sheriff's training facility, c. 1.5 mi. SW of Santiago Reservoir. 335 Comment
  UCR230825  Cucurbita foetidissima Dick Newell, Don Millar, Shara Harris 2011-6-21 186 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Agua Chinon Wash 207 Comment
  RSA648650  Cupressus forbesii Richard E. Riefner 2000-8-3 20 -707 Orange NCCP North Ranch Policy Plan Area. E of Main Divide Road and Windy Ridge cypress forest. 534 Comment
  LA29279  Cupressus macrocarpa Mary V. Hood; 1940-11-29 40- 193 k* a,b,c. Orange Laguna Comment
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Jan 12 2015
  RSA648945  Cuscuta californica Mark Breidenbaugh, Caralisa Breidenbaugh 1992-5-25 74 Orange 1/2 mile south of Chino Hills State Park Boundary. 228 Comment
  UC284233  Cuscuta californica P. A. Munz 1923-7-8 7330 Orange Santa Ana River Comment
  UCR16113  Cuscuta californica Dave Cerf 1971-4-17 s.n. Orange Orange Park Acres, 0.25 mi. north of Twin Lakes 396 Comment
  RSA545240  Cuscuta ceanothi R. F. Thorne 1967-08 41893 Orange Trabuco Canyon. Comment
  POM3664  Cuscuta salina L. R. Abrams 1901-6-12 1756 Orange Anaheim Landing Comment
  RSA725468  Cuscuta subinclusa Fred M. Roberts, Megan Lulow 2007-7-30 6550 Orange Fremont Canyon, 1.3 km NE Irvine Lake spillway, North Irvine Ranch Policy Area. 253 Comment
  UCD169765  Cuscuta subinclusa R. F. Thorne; E. W. Lathrop, W. Wisura 1977-7-8 49627 Orange Santa Ana Mountains: San Juan Canyon, along Ortega Highway (74) across from San Juan Fire Station. 214 Comment
  UCR193793  Cuscuta subinclusa A. C. Sanders, Fred M. Roberts 2008-7-3 35688 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along Windy Ridge Rd. at hairpin turn/road junction below huge sandstone boulder (visible on Google Earth), 1.2 mi. SE of Walnut Canyon Reservoir 285 Comment
  UCR228770  Cuscuta subinclusa Dick Newell, Don Millar 2011-7-19 213 Orange Peninsular Range; Santa Ana Mtns., foothills above Black Star Canyon Rd. (SCE access road), 3.15 mi. ENE (83 deg. ) of Irvine Lake dam 494 Comment
  UCR108380  Cycloloma atriplicifolium L. C. Wheeler 1946-9-28 6377 Orange Newport Bay: Near Point where main coast highway [Hwy 1?]crosses 2 Comment
  RSA609757  Cycloloma atriplicifolium L. C. Wheeler 1946-9-28 6377 Orange Newport Bay: Near point where main coast highway crosses.. . 2 Comment
  POM202596  Cynodon dactylon L. M. Booth 1932-5-25 1115 Orange Balboa Island [Newport Bay]. Comment
  UC971748  Cynodon dactylon L. M. Booth 1932-5-25 1115 Orange Newport Bay Balboa Island; Newport Bay Comment
  UCSC000021  Cynodon dactylon I. J. Condit 2008-7-20 s.n. Orange Los Alamitos Comment
  RSA603290  Cynosurus echinatus Tony Bomkamp, R. E. Riefner 1997-6-18 97 -202 Orange Hidden Valley Ranch, Black Star Canyon, Santa Ana Mountins 671 Comment
  SD253871  Cyperus Jim Riley 2013-10-15 118 Orange San Clemente area; 0.56 miles ESE intersection Avenida Pico and Camino La Pedriza; just N San Diego County line 68 Comment
  RSA0069227  Cyperus difformis Fred M. Roberts 2008-9-3 7082 Orange Yorba Linda: Santa Ana River Canyon, Santa Ana River, 0.7 km W Gypsum Cyn. bridge, south of La Palma Ave. 107 Comment
  RSA0028026  Cyperus eragrostis Fred M. Roberts 2012-9-6 7699 Orange San Joaquin Hills: Buck Gully, Buck Gully Trail, west end near Poppy Street entrance, 2.1 kilometers WNW Pelican Hill summit. 37 Comment
  RSA599638  Cyperus eragrostis Fred M. Roberts, P. Barrett, G. Bastillos 1995-7-25 4967 Orange Santa Ana Mountains: San Juan Canyon along San Juan Creek, San Juan Hot Springs, 0.8 kilometer SSW Juan Rancho Survey Mark. 214 Comment
  SEINET11750782  Cyperus eragrostis S. A. Thompson, Rawlins, J. E. 1988-1 5256 Orange Cleveland National Forest, 3.8 mi E of San Juan Hot Springs on CA 74 370 Comment
  POM12447  Cyperus erythrorhizos Phillip A. Munz 1922-9-2 6359 -A Orange Laguna Lakes. 46 Comment
  CAS-BOT-BC114321  Cyperus esculentus Helen D. Geis 1902-9-1 561 Orange Ditch banks, Santa Ana. Comment
  RSA92102  Cyperus esculentus F. W. Peirson 1923-9-6 4032 Orange Along canal east of Olive. Comment
  UCR194990  Cyperus involucratus A. C. Sanders, Fred M. Roberts 2008-8-7 35999 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon at powerline crossing, 1.0 mi. (air) SSE of Walnut Canyon Reservoir 226 Comment
  RSA0031763  Cyperus involucratus Robert F. Thorne 1977-11-21 50811 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs Comment
  UCR138404  Cyperus niger Scott D. White, Brian Leatherman 1997-6-12 5320 Orange Santa Ana Mtn. foothills, E of San Juan Capistrano: San Juan Creek between Hwy 74 bridge and Mission Vieja site, i.e. c. 2-4 mi east of Hwy I-15/Hwy 74 junction 76 Comment
  SD87779  Cyperus niger F. W. Peirson 1924-10-19 5231 Orange Wintersberg; at wates edge in ditches. Comment
  POM201904  Cyperus niger var. castaneus L. M. Booth 1932-7-19 1287 Orange Bolsas Marsh. Comment
  UCR166792  Cyperus odoratus R. E. Riefner Jr. 2005-7-9 05- 551 Orange South Coast, city of Huntington Beach, Huntington Central Park, Goldenwest Street near Slater Avenue 1.5 Comment
  RSA92111  Cyperus odoratus F. W. Peirson 1924-10-19 2532 Orange Wintersberg Comment
  POM1352  Cyperus squarrosus Le Roy Abrams 1901-6-12 1771 Orange Laguna. Comment
  CAS-BOT-BC227846  Cyrtomium falcatum R. E. Riefner, Jr. 2011-7-1 11 -83 Orange City of Newport Beach, beach area west of the end of Cameo Shores Road; south ca. 1 mi from Poppy Avenue 1 Comment
  RSA739276  Cyrtomium falcatum R. E. Riefner 2009-1-3 83 Orange Orange County: city of Newport Beach, N Star Beach, vicinity of N Star Ln and White Cliffs Dr. 4 Comment
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Dec 20 2012
  SD260849  Cyrtomium falcatum R. E. Jr. Riefner 2012-2-2 12 19 Orange City of Dana Point, cliff and rocky intertidal area N 0.2 mi of Salt Creek lagoon. 9 Comment
  UC2031957  Cyrtomium falcatum R. E. Riefner Jr. 2012-2-2 12 -19 Orange City of Dana Point, cliff and rocky intertidal area N 0.2 mi of Salt Creek lagoon Comment
  RSA750900  Dactylis glomerata A. C. Sanders 2008-7-3 35717 Orange Lomas de Santiago, Santiago Canyon near mouth of Limestone Cyn., at Agustine Staging Area 260 Comment
  RSA295240  Dactyloctenium aegyptium E. Wegener 1970-8-11 LASCA- 948 Orange Near Costa Mesa. Comment
  UCR240083  Datisca glomerata Dick Newell, Judy Booth 2012-6-3 266 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, Maple Springs Truck Trail/Silverado Canyon Rd., 1.6 miles ENE of Maple Springs Gate 741 Comment
  CHSC116491  Datisca glomerata R. F. Thorne; E. W. Lathrop, W. Wisura 1977-7-8 49563 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74). Comment
  SD245348  Datisca glomerata R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49563 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74). Along San Juan Creek. Comment
  JEPS12207  Datura stramonium Lawrence M. Booth 1932-7-30 1345 Orange near Newport Beach (Santa Ana River Basin); , near Newport Beach Comment
  POM48016  Datura wrightii I. M. Johnston 1924-8-29 s.n. Orange 1 mi. N of Los Alamitos. Comment
  UCR191224  Daucus pusillus A. C. Sanders 2008-4-29 35126 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, western end of Loma Ridge on road to sheriff's training facility, c. 1.5 mi. SW of Santiago Reservoir 335 Comment
  CAS-BOT-BC299333  Deinandra fasciculata John Thomas Howell 1931-6-1 6625 Orange San Clemente Comment
  RSA94100  Deinandra fasciculata F. W. Peirson 1924-8-29 5064 Orange Santa Ana Comment
  OBI74758  Deinandra paniculata Unknown 2003-8-31 03 -337 Orange San Clemente State Beach, mima mound field in SW corner of park 27 Comment
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Feb 23 2018
  RSA0073657  Deinandra paniculata Fred M. Roberts 2014-7-25 7893 Orange South Coastal Plain: San Joaquin Hills: Laguna Canyon, just west of Laguna Lake 1, 4.8 km ENE Signal Hill, Laguna Coast Wilderness Park. 116 Comment
  SD247322  Deinandra paniculata R. E. Jr. Riefner 2008-5-19 08 100 Orange Ladera Ranch, Cecil Pasture at Jerome Road; along Bluff Top Trail. 156 Comment
  CAS-BOT-BC9095  Delphinium cardinale John Thomas Howell 1927-7-26 2837 Orange SE fork of Claymine Canyon, northern Santa Ana Mtns. 304 Comment
  RSA6131  Delphinium cardinale E. R. Johnson 1932-6-14 s.n. Orange Edge of Rancho Santa Ana, Santa Ana Canyon. Alt. 450 ft. 137 Comment
  UC729868  Delphinium cardinale Carl B. Wolf 1932-7-2 3821 Orange 1/8 mi below La Vida Springs; Carbon Canyon 213 Comment
  UCR231162  Delphinium cardinale Dick Newell, Judy Booth 2011-6-26 193 Orange Peninsular Range; Santa Ana Mtns., Long Canyon Rd., NW of Hwy 74, Cleveland National Forest 965 Comment
  RSA0005324  Delphinium maritimum Anstruther Davidson 1910-4-20 2471 Orange Corona Del Mar. Comment
  RSA787104  Delphinium parryi Keith E. Hoffmaster 1928-5-29 497 Orange San Onofre. CP5. Comment
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Nov 19 2013
  UCR132978  Delphinium parryi Adrian Wolf 2000-4-15 460 Orange Santa Ana Mtns., North Ranch Policy Plan Area, North Baker Canyon Road 335 Comment
  RSA400045  Delphinium patens subsp. hepaticoideum M. B. Dunkle 1950-4-14 5389 Orange San Juan Canyon Comment
  RSA548863  Delphinium patens subsp. hepaticoideum Fred M. Roberts, Carol A. Roberts 1988-6-10 4095 Orange Santa Ana Mountains: Modjeska Peak, 0.9km SW summit. 1542 Comment
  RSA697422  Dentaria integrifolia R. H. McArthur 1934-3-3 62 Orange Forks of Laguna Canyon. Comment
  RSA697468  Descurainia pinnata Snow 1929-2-25 26 Orange E. of Stanton. Comment
  RSA0073654  Descurainia pinnata subsp. halictorum Fred M. Roberts 2010-3-12 7183 Orange Southeast Coast: Dana Point Headlands: Harbor Point Park, South of Green Lantern and west of Dana Point Harbor, c.a. 150 meters SE Interpretive Center. 50 Comment
  RSA627532  Dicentra chrysantha Sandy Leatherman, Fred M. Roberts, B. Leatherman, Trish Smith 1998-5-23 16 Orange Black Star Canyon: Spur Road off of Black Star Canyon Road. 335 Comment
  RSA433600B  Dicentra ochroleuca Freda Detmers 1931-6-19 s.n. Orange Santa Ana Valley. Comment
  CAS-BOT-BC483630  Dichelostemma capitatum A. M. White 1974-6-1 1430 Orange Ca. 20 miles east of Santa Ana norht of Silverado Canyon 822 Comment
  RSA734281  Dichelostemma capitatum A. C. Sanders, Linda Farley, Fred M. Roberts, D. Bramlet 2008-4-1 34644 Orange Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 250 Comment
  HSC22053  Dichelostemma capitatum subsp. capitatum S. M. Clapp 1966-4-7 21 Orange 3 mi. from Modjeska Canyon towards Silverado Canyon 152 Comment
  POM276995  Dichelostemma capitatum subsp. capitatum Lyman Benson 1932-3-26 3203 Orange Dana Point 61 Comment
  RSA737543  Dichelostemma capitatum subsp. capitatum Fred M. Roberts 2008-3-12 6718 Orange Dana Point: Dana Point Headlands CNLM Preserve, western side, c.a. 0.8 km W Marine Institute (Dana Point Harbor). 50 Comment
  RSA208913  Dichelostemma capitatum subsp. capitatum Lee W. Lenz 1965-4-6 24585 b Orange Bluff above ocean, Dana Point. 30 Comment
  UCR188938  Dichondra micrantha Robert DeRuff 2006-6-1 313 Orange Newport Beach, Upper Newport Bay, 23rd Street on west side of the Bay 11 Comment
  RSA562808  Digitalis purpurea Steve D. Boyd, Tim S. Ross 1992-5-20 7480 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of the wilderness in Lucas Canyon, along foot trail upstream from end of old roadgrade to upper homestead (corrugated steel building). 350 Comment
  UCR188995  Digitaria sanguinalis Fred M. Roberts 2007-10-29 6624 Orange South Coast, Laguna Beach, Temple Hill. Nyes Place, c. 0.2 km S of Moulton Meadows Park 232 Comment
  RSA0019267  Dimorphotheca ecklonis Fred M. Roberts, Sandra Leatherman, Jennifer Pareti 2009-4-14 7149 Orange Dana Point Headlands: Dana Strand Beach and slopes above beach, 0.8 km WNW Marine Institute at Dana Point Harbor. CNLM Dana Point Preserve. 3 Comment
  CHSC42169  Diplacus australis L. A. Hinman 1986-3-22 5 Orange Ca. 6 mi nw of San Juan Capistrano, Bell Canyon, 2 mi n of Hwy 74. Ca. 65 yds e of Bell Creek. 128 Comment
  CAS-BOT-BC152060  Diplacus longiflorus H. E. McMinn 1949-7-9 5598 Orange Ca. 2 miles east of San Juan Capistrano, San Juan Pass, Highway 74 Comment
  SEINET8733132 Image available Diplacus longiflorus Jean Coulson 1959-1 s.n. Orange Santa Anna Mts. Orange County California. 1.1 mi. W. of Orange & Riverside County line on Highway 18. On S. side of road in small depression. Comment
  CAS-BOT-BC150841  Diplacus puniceus F. W. Pennell; E. M. Harvey 1949-6-29 26803 Orange Ortega Highway, above San Juan Capistrano 365 Comment
  RSA151106  Diplotaxis muralis P. H. Raven 1962-3-27 16992 Orange Orange County, site of Rancho Santa Ana, near Anaheim. 183 Comment
  CAS-BOT-BC43566  Diplotaxis tenuifolia I. M. Johnston 1918-5-4 1927 Orange Santa Ana. Comment
  RSA696324  Distichlis spicata Keith E. Hoffmaster 1927-5-22 s.n. Orange Santa Ana. Comment
  UCD64389  Distichlis spicata var. stolonifera A. A. Beetle 1942-4-19 3099 Orange Rt. 101. 5 miles south of Laguna Beach. Comment
  UCR12589  Distichlis spicata var. stolonifera J. S. Davis 1972-5-6 720506- 20 Orange South Coast, Newport Beach, 100 yards from the corner of San Joaquin Hills Road and Back Bay Road. 0 Comment
  CAS-BOT-BC41692  Draba cuneifolia var. sonorae Helen D. Geis 1902-1-1 529 Orange Santiago Creek. Comment
  RSA732165  Drymocallis glandulosa A. C. Sanders, Fred M. Roberts 2008-4-8 34762 Orange Peninsular Range; Lomas de Santiago, Loma Ridge, SSE of Santiago Reservoir on Loma Ridge Spur Rd., above Dripping Springs Loop Rd. 457 Comment
  UC1950970  Drymocallis glandulosa A. C. Sanders with Fred M. Roberts 2008-4-8 34762 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago, Loma Ridge, SSE of Santiago Reservoir on Loma Ridge Spur Rd., above Dripping Springs Loop Rd. El Toro 7.5' Quad. Comment
  RSA682914  Drymocallis glandulosa var. wrangelliana Scott D. White, Amanda Duchardt 2003-5-1 9164 Orange Santa Ana Mountain Foothills: Slopes above west side of Trampas Canyon. 107 Comment
  IRVC16264  Dryopteris arguta L. Fox 1978-5-9 s.n. Orange Upper Trabuco Canyon. Santa Ana Mountains Comment
  IRVC28642  Dryopteris arguta Mark A. Elvin, A. C. Sanders 2005-9-2 4497 Orange Mouth of Lion Cyn, just up stream from Lower San Juan Campground. Santa Ana Mtns 457 Comment
  RSA698474  Dryopteris arguta R. H. McArthur 1934-4-14 s.n. Orange Laguna Canyon. Hillside. Comment
  RSA739332  Dryopteris arguta Keith E. Hoffmaster 1934-4-22 37 Orange Santa Ana Mountains. Comment
  SD144155  Dryopteris arguta Scott D. White 1996-12-20 4631 Orange Above Modjeska Canyon: proposed water tank site. 420 Comment
  UC1543032  Dryopteris arguta Donald G. Nelson 1935-4-6 267 Orange e San Juan Capistrano (about 4 mi from summit, 200-300 ft below main hwy); San Juan Canyon Comment
  UC2030238  Dryopteris arguta J. Metzgar with K. Pryer and M. Windham 2006-4-25 177 Orange Cleveland National Forest: Hot Springs Canyon Comment
  CAS-BOT-BC70836  Dryopteris arguta Carl B. Wolf; E. R. Johnson 1939-3-16 9492 Orange Santa Ana Mts., north side of Pleasant's Peak 1219 Comment
  IRVC21221  Dryopteris arguta Fred M. Roberts 1984-3-9 1248 Orange Wagon Whell Regional Park: cyn 2.9 km NE Median Rancho Survey Mark; 1.6 km NW bench Mark 422. Southern Coastal 165 Comment
  RSA704080  Dryopteris arguta D. E. Bramlet, Fred Roberts 2003-5-1 3426 Orange Donna O'Neill Reserve. Ephemeral drainage north of the North Ridge trail 457m west of Cristianitos Rd. and 1.07 km north of the E-W access road. 128 Comment
  JEPS50033  Dudleya blochmaniae subsp. blochmaniae T. W. Minthorn 1924-5-30 Orange Pt. San Juan (Dana Point) Comment
  LA204783  Dudleya blochmaniae subsp. blochmaniae None; 1951-4-26 sn Orange Salt Creek Beach, Laguna Comment
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Nov 15 2013
  CAS-BOT-BC427990  Dudleya caespitosa John Thomas Howell 1927-6-9 2472 Orange North side Santa Ana Canon [Canyon] 152 Comment
  UCR159830  Dudleya cymosa Valerie Soza, LeRoy Gross 1999-6-10 517 Orange Santa Ana Mountains, Southwestern extension of Modjeska Peak, off dirt road to summit, off Main Divide Road 1555 Comment
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Jun 15 2013
  CAS-BOT-BC428263  Dudleya edulis Reid Moran 1949-5-28 3257 Orange Aliso Canyon, Laguna Beach Comment
  CAS-BOT-BC411409  Dudleya lanceolata Reid Moran 1951-6-22 3495 Orange Aliso Canyon, Laguna Beach Comment
  CAS-BOT-BC411411  Dudleya lanceolata Lawrence M. Booth 1931-1-1 1188 Orange Bluff slopes of Newport Bay Comment
  HSC6462  Dudleya lanceolata J. W. Johnson 1961-3-29 Orange Newport Beach, slope overlooking Upper Newport Bay. Comment
  POM265679  Dudleya lanceolata J. C. Roos 1937-5-21 2338 Orange Lemon Heights, near Santa Ana Comment
  UCR119302  Dudleya lanceolata R. E. Riefner Jr., Adrian Wolf 2000-6-1 20- 456 Orange Santa Ana Mountains, North Ranch Policy Plan Area, north of Irvine Lake [Santiago Reservoir] and west of Black Star Canyon, west of dirt access road, W slope of Fremont Canyon. 473 Comment
  UCR240090  Dudleya lanceolata Dick Newell, Don Millar 2012-5-22 254 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Hangmans Tree Rd. at Santiago Creek 350 Comment
  UCR59229  Dudleya lanceolata Robert McKernan 1989-5-18 s.n. Orange Santa Ana Mtns Foothills, Serrano Creek, 4 km north of Trabuco Rd. at the end of Lake Forest Rd. 6 km east of El Toro Military Base 274 Comment
  UCSB42175  Dudleya lanceolata Roos, John 1965-6-16 Orange Dana Point Comment
  CAS-BOT-BC411406  Dudleya lanceolata K. Nakai 1978-2-5 211 Orange Aliso Canyon, ca. 200 m E of Calif. Hwy 1 on N facing cliffs 10 Comment
  RSA584715  Dudleya lanceolata Fred M. Roberts 1989-5-18 4371 Orange Santa Ana Mountains: Upper Gypsum canyon, above ridge road, ca. 6.4 km WSW Sierra Peak. 415 Comment
  RSA542536  Dudleya multicaulis Fred M. Roberts, Kathy Keane 1988-5-25 4000 Orange Rancho Mission Viejo: Lower Canada Gobernadora, ca. 2.4 kn SW Cliff Survey Marker. 110 Comment
  UCR37776  Dudleya multicaulis Steve Boyd, L. F. LaPre 1981-5-27 s.n. Orange Santa Ana Mtns., Northern end of the Santa Ana Mtns., along powerline road on ridges east of Weir Canyon & at the head of Gypsum Canyon. Comment
  RSA13068  Dudleya pulverulenta P. C. Everett 1935-7-5 2361 Orange Rancho Santa Ana, Santa Ana Canyon hill N of Grapefruit orchard 152 Comment
  UCR24651  Dudleya pulverulenta John C. Roos 1965-6-16 s.n. Orange Dana Point Comment
  UCSB50638  Dudleya pulverulenta Roberts, Fred 1982-7-8 Orange Niguel Hills; Niguel Hill, above Pacific Island Road, 1.4 km. ESE Aliso Peak; 2.6 km. SSW Alicia Fire Station 205 Comment
  UC933338  Dudleya pulverulenta subsp. pulverulenta Reid Moran 1948-6-23 3099 Orange n side Aliso Canyon; Laguna Beach Comment
  NY24581  Dudleya stolonifera R. V. Moran 1949-7-2 3286 Orange This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  NY387891  Dudleya stolonifera R. V. Moran 1948-6-23 3095 Orange This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  UC905131  Dudleya stolonifera R. V. Moran 1949-7-2 3287 Orange s Laguna Beach (n facing cliff near mouth of Aliso Canyon) Comment
  UC905132  Dudleya stolonifera R. V. Moran 1948-6-23 3095 Orange s of Laguna Beach (n-facing cliff near mouth of Aliso Canyon); ; North-facing cliff near mouth of Aliso Canyon, S of Laguna Beach, Orange Co. 7 Comment
  IRVC28635  Dudleya viscida Mark A. Elvin 2005-9-2 4490 Orange Santa Ana Mtns: along San Juan Creek, ca. 1.0km upstream from San Juan Hot Springs; off Ortega Hwy (74), near bridge. Peninsular Ranges 259 Comment
  UC115218  Dudleya viscida J. C. Nevin Oct 1881 Orange San Juan Comment
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Sep 1 2006
  UCR219856  Echinochloa colona Fred M. Roberts 2008-6-3 7031 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, East Fork Rattlesnake Canyon, c. 2.6 km NE Rattlesnake Reservoir spillway and 2.4 km ENE Bee Peak 225 Comment
  RSA789588  Echinochloa crus-galli R. F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49634 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs Comment
  UCR2340  Echinochloa crus-galli F. M. Reed 1920-8-27 4498 Orange Coastal Plain, roadside north of Orange 61 Comment
  UCD60958  Echinochloa esculenta Beecher Crampton 1965-10-27 7586 Orange 2 miles E of Irvine, UC South Coast Field Station. Comment
  POM1011  Echinodorus berteroi I. M. Johnston 1918-9-3 2151 Orange Laguna Canyon (at the lakes) 107 Comment
  RSA794758  Echinodorus berteroi Justin M. Wood, Dustin M. Ray 2010-10-1 2775 Orange Santa Ana Canyon: Santa Ana River plus/minus 1 mi downstream of Gypsum Canyon Bridge, just upstream of large commercial development. Near drain outflow from Flood Control Levee on south side of channel. 110 Comment
  SD133156  Echium fastuosum A. C. Sanders 1990-10-6 10183 Orange Newport Bay, North Star County Beach area on the southwest end of the bay, ca. 2 km inland of Highway 1 0 Comment
  RSA715696  Eclipta prostrata Fred M. Roberts, Chris M. Barnhill 2005-9-27 6276 Orange San Juan Capistrano: San Juan Creek wash, east of La Novia Road bridge, 1.4km E Mission San Juan Capistrano, 27 Comment
  RSA688978  Ehrharta calycina Fred M. Roberts, David E. Bramlet 2003-4-10 5636 Orange Rancho Mission Viejo: Donna O'Neill Land conservancy, Back Road, ridge between Cristianitos Cyn, and Segunda Deshecha Canada, 1.45km WNW Gato Gate. 216 Comment
  UCR132570  Ehrharta erecta Robert DeRuff 2002-5-2 538 Orange Southern Coast, Newport Back Bay, near 23rd Street 21 Comment
  RSA592059  Elatine brachysperma R. E. Riefner 1994-4-15 94 -320 Orange Dana Hills NW of Cooks Reservoir. Comment
  UC1784198  Eleocharis coloradoensis Donald G. Nelson 1935-4-15 297 Orange on road from Garden Grove to Costa Mesa, converging near Costa Mesa, near the main highway from Santa Ana Comment
  UC1784199  Eleocharis macrostachya Donald G. Nelson 1935-4-15 307 Orange on road from Garden Grove to Costa Mesa, converging near Costa Mesa, toward main highway from Santa Ana Comment
  UCR191469  Eleocharis macrostachya A. C. Sanders, Fred M. Roberts 2008-4-8 34734 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, head of Hicks Canyon, S of Santiago Reservoir 351 Comment
  RSA21065  Eleocharis montevidensis Ramon Valverde 1938-8-4 9439 Orange Rancho Santa Ana, Santa Ana Canyon 122 Comment
  RSA82  Eleocharis montevidensis var. montevidensis J. T. Howell 1927-7-6 279 Orange Santa Ana River bottom, Rancho Santa Ana 152 Comment
  RSA789589  Eleocharis montevidensis var. parishii Robert F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49633 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs Comment
  RSA708228  Eleocharis palustris Fred M. Roberts, Robert L. Allen, Chris Barnhill, Carol A. Roberts 2005-4-10 6164 Orange Costa Mesa: Fairview Park, west of north end of Canyon Drive, c.a. 0.2km WNW Marison Special Education Center (Canyon Sch. on topos). 24 Comment
  RSA723493  Eleusine coracana subsp. africana R. E. Riefner 2006-10-8 6 -474 Orange City of Irvine, San Diego Creek, between Alton Pwky. and 405 Fwy 51 Comment
  RSA723496  Eleusine coracana subsp. africana R. E. Riefner 2005-10-5 5 -718 Orange City of Yorba Linda, near Horseshoe Bend along the Santa Ana River. 102 Comment
  RSA542551  Eleusine indica Fred M. Roberts 1987-8-19 3587 Orange Santa Ana River: adjacent to Fountain Valley, Harbor Bridge. 13 Comment
  RSA697744  Ellisia chrysanthemifolia R. H. McArthur 1934-4-7 s.n. Orange Ladd Canyon. Comment
  CAS-BOT-BC206789  Elymus glaucus subsp. glaucus John Thomas Howell 1927-6-17 2553 Orange Hills on north side of Santa Ana Canyon. 152 Comment
  CAS-BOT-BC206791  Elymus glaucus subsp. glaucus Le Roy Abrams 1901-6-1 1822 Orange Santiago Pk. Comment
  RSA629046  Elymus glaucus subsp. glaucus Valerie L. Soza, LeRoy Gross 1999-6-10 526 Orange Santa Ana Mountains: Southwestern extension of Modjeska Peak, off dirt road to summit, off Main Divide Road. 1554 Comment
  RSA797826  Elymus glaucus subsp. glaucus R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49815 Orange Santa Ana Mountains: Trabuco Canyon Comment
  UCR93245  Elymus triticoides F. M. Reed 1928-5-10 5883 Orange Laguna Canyon below lakes 91 Comment
  CAS-BOT-BC412640  Emex spinosa unspecified 1933-4-21 s.n. Orange Lemon Grove Comment
  VVC254  Emmenanthe penduliflora P. J. MacKay 1990-5-25 s.n. Orange Peninsular Range, Hwy 74 near San Juan Hot Springs 198 Comment
  CLARK-A1045-1004  Encelia californica George K. Helmkamp 1978-3-4 Orange Newport Beach bluff along Newport Back Bay; Newport Beach 7.5'Q Comment
  UCR239635  Encelia californica Fred M. Roberts 2012-4-24 7503 Orange San Joaquin Hills, Buck Gully, west of intersection of Ridge Park Road and Newport Coast Drive, 1.5 km west of Signal Peak 179 Comment
  UCSB12532  Encelia californica Whittington, M. 1962-4-20 Orange South side Newport Back Bay about 0.5 miles south of the salt works, Newport Comment
  IRVC653  Encelia californica B. T. Gittins, R. Hobson 1965-4-10 Orange Comment
  RSA723970  Epilobium brachycarpum R. E. Riefner Jr. 2005-10-5 05 -705 Orange City of Yorba Linda; Santa Ana River, Horseshoe Bend, near La Palma Rd. and Via Del Rio Rd. 99 Comment
  SD236344  Epilobium canum A. C. Sanders, Fred M. Roberts 2008-9-18 36084 Orange Peninsular Range; Santa Ana Mtns. Foothills: Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge. 320 Comment
  UCR197698  Epilobium canum A. C. Sanders, Fred M. Roberts 2008-9-18 36084 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge 330 Comment
  POM200869  Epilobium canum subsp. canum Carl B. Wolf 1933-8-24 5384 Orange Santa Ana Mountains; Along road S of Bedford Peak on way to Santiago Peak. 1067 Comment
  RSA542492  Epilobium canum subsp. latifolium Fred M. Roberts, Richard E. Riefner 1988-7-19 4119 Orange Santa Ana Mountains: Modjeska Peak, west slope, 1.1 km SW summit 1524 Comment
  POM201877  Epilobium ciliatum subsp. ciliatum L. M. Booth 1932-6-28 1212 Orange Bolsas Marsh. Comment
  RSA72173  Epilobium ciliatum subsp. ciliatum F. W. Peirson 1924-5-31 4654 Orange Laguna Canyon, near Laguna Beach. 107 Comment
  POM210924A  Epipactis gigantea L. M. Booth 1932-6-4 1150 Orange Newport Lagoon. Comment
  UCD169806  Epipactis gigantea R. F. Thorne; E. W. Lathrop, W. Wisura 1977-7-8 49608 Orange Santa Ana Mountains: rocky ravine tributary to San Juan Canyon, along Ortega Highway (74) about 2 miles above San Juan Fire Station. Comment
  UC777943  Eragrostis mexicana subsp. virescens Frank W. Gould 1944-6-25 2362 Orange Garden Grove; Tournat Ranch Comment
  RSA0121319  Eriastrum sapphirinum subsp. dasyanthum Fred M. Roberts, Carol A. Roberts 1990-5-16 4628 Orange Santa Ana Mtns: Small canyon along SE side of Irvine Mesa, 3.5 km N Bolero Lookout 396 Comment
  UCSB52426  Ericameria arborescens Roberts, Fred 1982-9-20 Orange Santa Ana Mtns.; San Juan Trail; 1.1 km SE Blue Jay Campground; 2.5 km SSE Los Pinos Peak 997 Comment
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Jan 25 2020
  CHSC346  Ericameria linearifolia S. Westerberg 1938-3-25 Orange Santa Ana. Comment
  UCSB52939  Ericameria palmeri Roberts, Fred 1990-12-9 Orange Irvine: UCI Ecological Preserve, 0.8km SSW campus center; Locality graded in summer 1984 70 Comment
  RSA16663  Ericameria palmeri var. pachylepis C. B. Wolf 1931-10-30 2504 Orange Rancho Santa Ana, Santa Ana Canyon. 207 Comment
  RSA16676  Ericameria palmeri var. pachylepis C. B. Wolf 1931-10-30 2504 Orange Rancho Santa Ana, Santa Ana Canyon. 207 Comment
  RSA450872  Ericameria palmeri var. pachylepis Fred M. Roberts 1983-12-9 1151 Orange Irvine Uc, Irvine Ecological Preserve, 0.8dm SSW Campus center. 70 Comment
  SEINET7073539  Ericameria palmeri var. pachylepis A. G. Vestal 1963-3-27 s.n. Orange Ridge above Cai+-ada Gobernadora. About 6.2 miles up. UTM Zone 11, 446709mN, 3718372mN. Coordinate datum: NAD27. Comment
  RSA7387  Ericameria parishii C. B. Wolf 1933-8-24 5407 Orange Main divide motorway S of Beaford Peak, Santa Ana Mts 1067 Comment
  LA202522  Ericameria parishii var. parishii David S. Verity; 1966-11-23 sn Orange Santa Ana Mountains, Los Pinos Peak, near peak 1219 Comment
  RSA842  Ericameria pinifolia J. T. Howell 1927-10-23 770 Orange On road to Aliso Canyon Rancho Santa Ana. 152 Comment
  UCR58719  Ericameria pinifolia Reid Moran, G. Marsh, Jack L. Reveal 1977-6-13 24231 Orange Willow Canyon, tributary of Laguna Canyon. 125 Comment
  SDSU3943  Erigeron foliosus D. F. Howe 1976-6-4 4905 Orange Trabuco Canyon, Santa Ana Mts. 305 Comment
  IRVC14812  Erigeron foliosus var. foliosus A. S. Boughey 1968-7-9 384396 Orange Santa Ana mtns: upper Santiago Canyon. Peninsular Ranges Comment
  UCR188939  Eriobotrya japonica Robert DeRuff 2004-1 546 Orange Newport Beach, Upper Newport Bay, Big Canyon on north-facing bank below Park Newport Apartments 16 Comment
  RSA171104  Eriodictyon crassifolium Robert F. Thorne 1963-7-26 32836 Orange Tin Mine Canyon above Beek s Spring, Trabuco District, Cleveland National Forest 854 Comment
  RSA0041967  Eriodictyon crassifolium Paul Shirokawa 1998-5-7 23 Orange Cleveland National Forest: Trabuco Ranger District, 3.1 miles from Ortega Highway (State Highway 74) on Main Divide Road. 990 Comment
  UCR230225  Eriodictyon crassifolium var. crassifolium Dick Newell, Ed Hill 2011-3-29 096 Orange Peninsular Range; Santa Ana Mtns., below mouth of Weir Canyon, near Outdoor Education Center 165 Comment
  CAS-BOT-BC188114  Eriodictyon parryi P. C. Everett 1935-6-18 7216 Orange Summit of Santiago Peak, Santa Ana Mountains 1731 Comment
  UCSB57032  Eriodictyon parryi Roberts, Jr., Fred 1985-7-26 Orange Santa Ana Mtns.; Main Divide Truck Trail near Los Pinos saddle, 1.5 km. NE Los Pinos Peak, UTM 3725850m N, 457400m E 1257 Comment
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Feb 22 2019
  RSA7477  Eriogonum elongatum Carl B. Wolf 1933-8-24 5401 Orange Summit of Santiago Peak, Santa Ana Mountains. 1732 Comment
  UCR231355  Eriogonum elongatum A. C. Sanders, Kent Beaman 2011-9-27 39907 Orange Peninsular Range; Santa Ana Mtns., Maple Springs Truck Trail above Silverado, at major (dry) stream crossing, 3.95 km NNW (347 deg. ) of Santiago Peak 903 Comment
  UCR45132  Eriogonum elongatum B. G. Pitzer, L. F. LaPre 1986-10-20 s.n. Orange Santa Ana Mtns, Summit of Hicks Canyon on a private road (continuation of Jeffrey Road), c. 2.4 mi. above the gun club 274 Comment
  IRVC26729  Eriogonum fasciculatum subsp. foliolosum Peter A. Bowler 2003-4-26 s.n. Orange UC San Joaquin Freshwater Marsh Reserve; bluffs along NW edge of marsh. Southern Coastal 9 Comment
  RSA393427  Eriogonum fasciculatum var. foliolosum M. B. Dunkle 1933-3-5 3094 Orange San Juan Canyon 305 Comment
  UC536903  Eriogonum gracile L. M. Booth 1932-7-29 1331 Orange Newport Lagoon Comment
  UCR210064  Eriogonum gracile A. C. Sanders, Fred M. Roberts, Jutta Burger 2009-10-21 37195 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Limestone Canyon, west of Limestone Canyon Rd. 366 Comment
  RSA766138  Eriogonum gracile Joseph A. Ewan 1932-7-29 7738 Orange Road around Newport Lagoon. Comment
  RSA788926  Eriogonum gracile var. gracile Fred M. Roberts 1999-6-10 5236 Orange Lomas de Santiago: Loma Ridge, Agua Chinon Canyon, 1.4 km S Bolero Spring and 2.1 km W Bolero Lookout. 258 Comment
  RSA716664  Eriogonum parvifolium Fred M. Roberts 2004-7-10 6073 Orange Laguna Beach: Crescent Bay, at base of Twin Points. 3 Comment
  RSA719420  Eriogonum parvifolium Fred M. Roberts, Lee Ann Caranza 2006-10-25 6457 Orange Dana Point Headlands south of Margarite Drive, 0.6km W Marine Institute and 1km SW Cook Sch. 58 Comment
  UCR46823  Eriogonum parvifolium T. R. Van Devender, R. K. Van Devender 1986-11-16 86- 214 Orange 3.2 miles northwest of Laguna Beach on Highway 1 at Pelican Point Comment
  RSA539351  Eriogonum saxatile Fred M. Roberts 1988-6-10 4097 Orange Santa Ana Mountains: Modjeska Peak, 0.9km SW summit. 1542 Comment
  CAS-BOT-BC263016  Eriogonum thurberi P. C. Everett 1935-5-17 6866 Orange Rancho Santa Ana, Santa Ana Canyon 1/4 mi. So. of Orange County Plant Sanctuary 121 Comment
  CAS-BOT-BC263017  Eriogonum thurberi Helen D. Geis 1902-1-1 532 Orange Santiago Cr. Comment
  CAS-BOT-BC297330  Eriophyllum confertiflorum Cecil Hart 1928-5-27 s.n. Orange Laguna Beach Comment
  HSC5621  Eriophyllum confertiflorum T. L. Ackerman 1964-3-28 17 Orange Irvine Park Dr. inside Irvine Park Comment
  POM49708  Eriophyllum confertiflorum L. R. Abrams 1901-06 1834 Orange Mt Santiago 1747 Comment
  RSA5331  Eriophyllum confertiflorum B. D. Stark 1933-1-3 4483 Orange Rancho Santa Ana near pear orchard. 122 Comment
  RSA695678  Eriophyllum confertiflorum Minor Warne 1934-3-21 s.n Orange Limestone Canyon. Santa Ana Mts. Comment
  RSA631401  Eriophyllum confertiflorum var. confertiflorum Valerie L. Soza, LeRoy Gross 1999-6-7 492 Orange West side of Modjeska Peak, along Main Divide Road. 1448 Comment
  RSA638972  Eriophyllum confertiflorum var. confertiflorum Valerie L. Soza, LeRoy Gross 1999-6-8 495 Orange Santa Ana Mountains: Santiago and Modjeska Canyons, above Tucker Wildlife Sanctuary, above the town of Modjeska 518 Comment
  UC1294014  Eriophyllum confertiflorum var. confertiflorum E. K. Balls 1958-6-27 23286 Orange Santiago-Mojeska Saddle Santa Ana Mts., Santiago-Mojeska Saddle 1463 Comment
  RSA786241  Erodium botrys Doris Bowers 1971-4-19 1679 Orange Black Star Canyon Indian Site 762 Comment
  UCR103158  Erodium brachycarpum Scott D. White 1997-3-25 4822 Orange University of California, Irvine campus, site of proposed student recreation center, east of main campus. Existing 'Farm School' and grasslands (horse pasture) between California Avenue and Culver Drive. 30 Comment
  RSA747593  Erodium cicutarium Fred M. Roberts 2000-5-5 5321 Orange Lomas de Santiago: Loma Ridge, Agua Chinon Cyn., north slope, 1.6 kmSSW Bolero Spr. and 2.6 km W Bolero Lookout. 308 Comment
  RSA125659  Erodium moschatum R. Weatherby 1950-2-25 1031 Orange Near El Toro, east side of Orange County. Santa Ana Mts. 305 Comment
  JEPS53573  Erysimum capitatum var. capitatum Alice Mary King Feb. 1908 Orange Santiago Creek Santa Ana Mts. Comment
  CDA25634  Eschscholzia californica A. C. Sanders, Fred M. Roberts, A. O Neal 2008-5-9 35308 Orange Peninsular Range; Santa Ana Mountains; Weir Canyon, along fire line/bulldozer cut, c. 1.5 miles east of Walnut Canyon Reservoir. Comment
  RSA785386  Eschscholzia californica Keith E. Hoffmaster 1934-1 402 Orange Santa Ana Comment
  RSA542448  Eschscholzia californica var. peninsularis Fred M. Roberts 1989-3-17 4210 Orange Aliso Wood canyon, Regional Park, Also canyon, 3.3 km SSE Moulton Peak. 57 Comment
  UCR184670  Eucalyptus camaldulensis Dean Kelch 2006-12-9 06 .555 Orange Irvine. University Dr. along tidal Creek just east of I-73 9 Comment
  SEINET6692539 Image available Eucalyptus camaldulensis var. camaldulensis A. C. Sanders, T. B. Salvato 2008-1 35370 Orange Peninsular Range; Santa Ana Mountains; Lomas de Santiago, Santiago Canyon above (S of) mouth of Hangman Tree Canyon, just below Modjeska Canyon confluence 366 Comment
  SEINET3093482 Image available Eucalyptus tereticornis D. Goodward 1987-4-16 1 Orange Lake Forest, E of Irvine and N of El Toro. Old plantation, now maintained as landscaping. Comment
  RSA704833  Eucrypta chrysanthemifolia Unspecified s.n. Orange Modjeska s Home. Comment
  UCR281551  Eucrypta chrysanthemifolia Mitch Provance, Jeremiah George 2017-3-20 317- 125 Orange West Coyote Hills, Fullerton, west side of Gilbert Street on land previously occupied by oil fields. 138 Comment
  POM8655  Euphorbia crenulata P. A. Munz 1920-4-23 3728 Orange Santa Ana Mountains, Silverado Canon. 549 Comment
  RSA2077  Euphorbia crenulata C. B. Wolf 1931-3-6 1852 Orange Trabuco Canyon, 1.5 mile below Trabuco Camp Grounds, west slope of Santa Ana Mountains. 610 Comment
  LA204852  Euphorbia misera Dave Dunn; 1932-7-28 7708 Orange Corona del Mar Comment
  RSA173967  Euphorbia misera Percy C. Everett 1963-9-25 33210 Orange Dana Point 61 Comment
  RSA432423  Euphorbia misera Albert J. Perkins 1917-3-10 s.n. Orange Aliso Canyon Comment
  SD248410  Euphorbia misera R. E. Riefner Jr. 2013-1-16 13 16 Orange City of Newort Beach, vicinity of Poppy Ave., and Ocean Blvd., coastal bluff at Little Corona Beach. 3 Comment
  UCD142463  Euphorbia peplus Ronni Stachelek; Bob Anderson 1995-3-23 48 Orange Newport Beach; Upper Newport Bay. Adjacent to Jamboree Rd. Comment
  RSA0126620  Euphorbia polycarpa var. polycarpa Fred M. Roberts 2012-4-24 7514 Orange San Joaquin Hills: Buck Gully, W of intersection of Ridge Park Road and Newport Coast Drive, 1.5 km W Signal Peak. 179 Comment
  RSA0104828  Euphorbia polycarpa var. polycarpa A. S. Boughey 1968-4-23 211 Orange Santa Ana Mountains: Black Star Canyon; 1/2 mi. below Hidden Ranch. Comment
  SD181549  Euphorbia serpens Louis C. Wheeler 1946-8-8 6225 Orange Imperial Highway 0.25 mile west of Caroline Ave., 2.0 miles eastsoutheast of Brea. Comment
  RSA797436  Euphorbia serpillifolia Keith E. Hoffmaster 1933-6-19 s.n. Orange Santa Ana. Comment
  RSA91147  Euthamia occidentalis F. W. Peirson 1924-10-19 5243 Orange Wintersberg. Comment
  RSA696043  Felicia amelloides Anonymous 1933-10-13 s.n. Orange Santa Ana Comment
  SBBG101678  Festuca microstachys var. pauciflora S. Boyd with Mistretta 1991-5-9 6193 Orange Oak Flat, SE of Sierra Pk, just W of Riverside County line 792 Comment
  UCR191422  Festuca myuros A. C. Sanders, Fred M. Roberts 2008-4-8 34772 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, SSE of Santiago Reservoir on Harding Truck Trail at Dripping Springs Loop, above Limestone Canyon 495 Comment
  UCSB52459  Festuca myuros Roberts, Fred 1983-3-10 Orange Dana Point Headlands; cliff above Dana Point Harbor; south of old Cove Rd.; 0.8km S Richard Henry Dana School 60 Comment
  CAS-BOT-BC487556  Ficus microcarpa R. E. Riefner, Jr. 2014-2-24 14 -66 Orange City of Dana Point, W ca 0.1 mi from Island Way along Dana Point Harbor Dr., cliff immediately S of Santa Clara Ave. and Amber Lantern St. 11 Comment
  CAS-BOT-BC487557  Ficus microcarpa R. E. Riefner, Jr. 2014-11-26 14 -399 Orange City of Irvine, W of IrvineBlvd. and S of Pusan Way, former MCAS El Toro facility 138 Comment
  RSA0116289  Ficus microcarpa R. E. Riefner Jr. 2014-7-13 14 -222 Orange City of Irvine, S side of Red Hill Ave. bridge E of 405 Freeway north-bound lane. 31 Comment
  RSA0116290  Ficus microcarpa R. E. Riefner Jr. 2014-7-14 14 -169 Orange City of Newport Beach, N side of Pacific Coast Highway at Riverside Ave. 6 Comment
  UCR267276  Ficus microcarpa R. E. Riefner Jr. 2014-11-26 14- 399 Orange City of Irvine, west of Irvine Blvd. and south of Pusan Way, former MCAS El Toro facility 138 Comment
  CAS-BOT-BC474735  Ficus rubiginosa R. E. Riefner, Jr. 2015-8-27 15 -356 Orange City of Laguna Beach, S side of Beach St. E of Broadway Ave (Hwy 133) 7 Comment
  IRVC29882  Ficus rubiginosa Mark A. Elvin, D. Kelch 2006-12-9 5314 Orange Irvine; San Diego Creek, edge of San Joaquin Marsh, beside University Dr., between Campus Dr. and Hwy 73. Southern Coastal 3 Comment
  RSA736576  Filago californica Keith E. Hoffmaster 1935-4-14 597 Orange Trabuco creek., 1/4 mi. above CCC camp at Trabuco Oaks, Santa Ana Mts. Comment
  UCR192469  Filago californica A. C. Sanders, Fred M. Roberts 2008-3-25 34537 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  RSA0057937  Filago californica Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49668 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. Comment
  UCR106279  Filago gallica B. G. Pitzer, M. Georgiady 1997-4-5 3087 Orange San Joaquin Hills, Crystal Cove State Park, portion across highway on the beach, bluffs immediately above beach and adjacent terraces for southeast end of park. 24 Comment
  LA207685  Frangula californica P. C. Everett; 1935-6-17 7137 Orange Santa Ana Mountains, Coldwater Canyon, 1/2 mi. above Glen Ivy Resort 457 Comment
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Jan 23 2015
  SD119374  Frangula californica subsp. californica Reid Moran 1975-11-21 22740 Orange in bottom of Trabuca Canyon, Santa Ana Mountains 399 Comment
  RSA0058059  Frangula californica subsp. californica Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49673 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. 457 Comment
  POM2924  Frankenia grandifolia D. L. Crawford 1916-7-26 s.n. Orange Aliso Canyon. Comment
  RSA303542  Frankenia grandifolia Jim R. Shevock 1972-9-27 2289 Orange Newport Back Bay. 2 Comment
  RSA391401  Frankenia grandifolia Joseph A. Ewan 1932-7-28 7701 Orange Corona Del Mar Comment
  HSC24453  Frankenia salina L. Neuenschwander 1970-8-20 58 Orange 4 mi. S of Seal Beach at Bolsa Chica Salt Marsh 0 Comment
  OBI14191  Frankenia salina Roger Shelby 1970-8-22 s.n. Orange Ca. 4.5 mi S of Seal Beach, 1.5 mi S of Warner Ave on Pacific Coast hwy in Bolsa Bay area 0 Comment
  CAS-BOT-BC217644  Fraxinus dipetala John Thomas Howell 1927-7-26 2844 Orange Claymine Canyon, n. Santa Ana Mts. 243 Comment
  RSA1068  Fraxinus dipetala J. T. Howell 1927-7-26 482 Orange Claymine Canyon near Sierra Peak. 213 Comment
  UC1123343  Fraxinus dipetala R. St. John 1931-3-31 202 Orange Silverado Canyon Corona Quad. 365 Comment
  UCD170071  Fraxinus dipetala R. F. Thorne; C. W. Tilforth, E. W. Lathrop 1977-4-27 49687 Orange Northern Santa Ana Mountains: Sierra Peak. 899 Comment
  CHSC116472  Fraxinus dipetala R. F. Thorne; C. W. Tilforth, E. W. Lathrop 1977-4-27 49687 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  SBBG128669  Fraxinus dipetala R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49687 Orange Sierra Peak; Santa Ana Mtns 900 Comment
  UCR139446  Fraxinus velutina var. coriacea E. R. Johnson 1936-4-27 7781 Orange Santa Ana River Canyon, Rancho Santa Ana Botanic Garden, Santa Ana River SW of Mexican Village 122 Comment
  RSA0041476  Fraxinus velutina var. coriacea Fred M. Roberts, Carol A. Roberts 1988-7-5 4108 Orange Santa Ana Mts: San Juan Canyon, 0.4 km SW Lower San Juan Picnic Ground. 410 Comment
  RSA659637  Fremontodendron mexicanum T. A. Daubert 1991-5-19 658 Orange Tucker Wildlife Sanctuary, Modjeska Canyon, turn around island. Comment
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Mar 12 2020
  UCR132979  Fritillaria biflora Adrian Wolf 2000-4-15 459 Orange Santa Ana Mtns., North Ranch Policy Plan Area, North Baker Canyon Road 335 Comment
  RSA0036644  Fritillaria biflora Robt. Allen 2009-3-29 s.n. Orange Peninsular Ranges; Santa Ana Mountains regions: Near Santiago Canyon. Rancho Sonado (Orange County Department of Education). Entrance is along Santiago Canyon Road, 0.23 miles NW of turnoff to Williams Canyon, 1.55 air miles SE of turnoff to Silverado, Canyon. Wild Bill Trail. 364 Comment
  RSA21805  Fritillaria biflora Percy C. Everett 1937-6-5 8769 Orange Santa Ana Mountains, Baker Canyon, along West Ladd Forest Service Road. Comment
  RSA201607  Fumaria parviflora Unspecified 1969-3-2 s.n. Orange East of Trabuco and Yale roads 91 Comment
  UCSB52911  Funastrum cynanchoides var. hartwegii Roberts, Fred; Pedderson, G. 1984-9-5 Orange Coto de Caza: Wagon Wheel Canyon, 6.4km NNE Median Survey Mark; 1.0km SE Bench Mark 657, 290 Comment
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Oct 28 2018
  RSA734597  Galinsoga parviflora A. C. Sanders, Fred M. Roberts 2008-5-6 35226 Orange Lomas de Santiago, lower Hicks Canyon, just above tollway (Hwy 241) crossing on Irvine Haul Rd., near debris basin 216 Comment
  RSA758894  Galium angustifolium A. C. Sanders, Fred M. Roberts 2008-4-22 35005 Orange Lomas de Santiago, lower Hicks Canyon haul road, just above Irvine Ranch gate and road to cement plant, c. 1 mile NE of Rattlesnake Reservoir 213 Comment
  UCR140808  Galium angustifolium Robin G. Marushia 2004-4-16 018 Orange Southern Coast, El Moro Canyon, Crystal Cove State Park, Laguna Beach; grassy ridge southwest of No Name Ridge road in park, downhill from pullout and below closed road to park entrance 244 Comment
  UCR240085  Galium angustifolium Dick Newell, Judy Booth 2012-6-3 264 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, Maple Springs Truck Trail/Silverado Canyon Rd., 1.6 miles ENE of Maple Springs Gate 741 Comment
  UCR240086  Galium angustifolium Dick Newell, Judy Booth 2012-6-3 263 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, Maple Springs Truck Trail/Silverado Canyon Rd., 1.6 miles ENE of Maple Springs Gate 741 Comment
  POM367702  Galium angustifolium subsp. angustifolium M. B. Dunkle 1934-6-18 3965 Orange Upper San Juan Canyon. 610 Comment
  RSA636102  Galium angustifolium subsp. angustifolium Valerie L. Soza, LeRoy Gross 1999-6-7 490 a Orange West side of Modjeska Peak, along Main Divide Road. 1448 Comment
  UC729870  Galium angustifolium subsp. angustifolium Carl B. Wolf 1932-7-2 3827 Orange 1/8 mi below La Vida Springs; Carbon Canyon 213 Comment
  UCR227752  Galium angustifolium subsp. angustifolium R. F. Thorne 1963-7-26 32825 Orange Santa Ana Mountains, Cleveland National Forest, [vicinity of road from Beek's Spring to Pleasants Peak], Trabuco District 1159 Comment
  RSA747595  Galium angustifolium var. angustifolium Fred M. Roberts 2000-5-19 5328 Orange Lomas de Santiago: Loma Ridge, ridge west of Bee Peak above Bee Cyn. landfill, 0.2 km W Bee Peak. 500 Comment
  CAS-BOT-BC223173  Galium nuttallii subsp. insulare John Thomas Howell 1927-6-26 2600 Orange Claymine Canon [Canyon], n. Snta Ana Mts. 365 Comment
  UCR158850  Galium parisiense A. C. Sanders, Mark A. Elvin 2005-9-2 31603 Orange Peninsular Range; Santa Ana Mtns., mouth of Lion Canyon near Lower San Juan Picnic Area, San Juan Creek Canyon 427 Comment
  UCR191232  Galium parisiense A. C. Sanders, Fred M. Roberts 2008-4-22 35027 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Limestone Canyon, c. 2 miles SW of Silverado 396 Comment
  JEPS74654  Galium porrigens Lauramay T. Dempster and G. L. Stebbins 1967-3-21 4351 Orange 1 mi nw Cock's Corners (on road to Modjeska's Home, shallow canyon) Comment
  RSA734343  Galium porrigens A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34632 Orange Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 366 Comment
  SD152756  Galium porrigens var. porrigens Steve Boyd, Tim Ross 1992-5-20 7457 Orange San Mateo Canyon Wilderness Area. Western edge in Lucas Canyon along canyon floor from crossing of Lucas Canyon Trail, upstream Ao mile to spur trail leading to old mining habitations in side canyon 305 Comment
  CAS-BOT-BC178505  Garrya flavescens Carl B. Wolf 1933-8-24 5383 Orange Along Main Divide Motorway between Bedford Pk. & Santiago Pk, Santa Ana Mts. Comment
  RSA124723  Garrya flavescens var. pallida E. K. Balls, P. C. Everett 1957-11-25 22846 Orange 1.4 miles E of Silverado. Comment
  RSA586253  Gastridium phleoides R. E. Riefner 1994-9-6 95 -560 Orange San Clemente State Beach Comment
  CDA25797  Gastridium ventricosum A. C. Sanders, Fred M. Roberts, A. O Neal 2008-5-9 35321 Orange Peninsular Range; Santa Ana Mountains; Weir Canyon, 0.3 mile west of Eastern Transportation Corridor (Highway 241) and 1.45 miles east of south end of Walnut Canyon Reservoir. Comment
  RSA38480  Gaura parviflora E. L. Paddock 1943-6-8 12730 Orange Whittier Road 1/4 mile west of Puente Street, Brea. Comment
  RSA542473  Geranium dissectum Fred M. Roberts 1988-3-15 3852 Orange Rancho Mission Viejo: Verdugo Canyon, 2.6 km ENE Point Rancho Survey Mark 149 Comment
  RSA688875  Geranium dissectum Fred M. Roberts 2003-5-1 5664 Orange Rancho Mission Viejo: Donna O Neill Land Conservancy, Cristianitos Cyn., 0.49km S Gato Gate and just west of Cristianitos Rd. (San Clemente) 84 Comment
  UCR209375  Gilia achilleifolia Fred M. Roberts, Linda Farley 2008-3-28 6816 Orange Santa Ana Mountains, Upper Weir Canyon, Irvine Ranch Conservancy, east fork along ridge just west of SR 241, 3.4 km east of Robber's Peak 437 Comment
  RSA470122  Gilia angelensis Anstruther Davidson 1910-03 2474 Orange Corona Del Mar. Comment
  SEINET7073429  Gilia angelensis A. G. Vestal 1963-4-24 s.n. Orange La Paz Canyon, Rancho Mission Viejo. Coordinate datum: NAD27. Comment
  UCR219853  Gilia angelensis Fred M. Roberts 1999-4-26 5199 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, tributary to Santiago Canyon Wash on ridge between Limestone Cyn and the wash, 1.4 km SE Silverado School, 2.7 km north Bolero Lookout 358 Comment
  RSA470265  Gilia capitata subsp. abrotanifolia Anstruther Davidson s.n. Orange Corona Del Mar Comment
  RSA470266  Gilia capitata subsp. abrotanifolia M. B. Dunkle 1933-5-30 3579 Orange Santa Ana Canyon. Comment
  SEINET272170  Gilia capitata subsp. abrotanifolia G. K. Helmkamp, E. A. Helmkamp 1997-4-24 1660 Orange Cleveland National Forest ; Cleveland National Forest 1.6 mi. SE of Ortega Hwy (CA-74) on Rd. 7-S14. UTM 10km cell: MH-5E 1N. San Juan Hot Spring 549 Comment
  CAS-BOT-BC94917  Gilia capitata subsp. abrotanifolia R. C. Wenk; P. Hopkinson; M. Hammond; P. Brownsey 2008-3-24 715 Orange Chino Hills S.P., S Ridge Road west of San Juan Hill, W of Equestrian Staging Area 441 Comment
  RSA548866  Gilia capitata subsp. abrotanifolia Fred M. Roberts, Carol A. Roberts 1988-6-2 4029 Orange Santa Ana Mountains: Silverado Canyon. Maple Springs Truck trail. 4.3 km above gate, 1.0 km WSW Bald Peak. 817 Comment
  RSA469704  Gilia tricolor subsp. diffusa M. B. Dunkle 1935-2-10 4330 Orange El Toro 61 Comment
  RSA0069233  Glebionis coronaria Fred M. Roberts, Lee Ann Caranza 2009-4-7 7138 Orange Dana Point Headlands: Dana Point CNLM Preserve, 0.8 km WNW Dana Point Marine Institute at Dana Point Harbor. 65 Comment
  UCR130350  Gloriosa superba A. C. Sanders, Mark A. Elvin 2003-10-12 27330 Orange Southern Coastal Slope, Irvine, UCI Arboretum, UCI campus near intersection of Jamboree Blvd. and Campus Dr. 15 Comment
  SEINET10849002  Gnaphalium David B. Dunn 1971-8-13 Dunn 18133 Orange Cultivated plants vicinity of Laguna Beach. Comment
  RSA289470  Gnaphalium beneolens R. C. Bacigalupi 1952-7-19 3852 Orange In dry ground of bank, N Fork of American River below Cape Horn Station on SP RR, 1/2mile above bridge on Colfax - Iowa Hill road, alt 1250ft. 381 Comment
  IRVC449  Gnaphalium bicolor B. Simpson 1965-5-1 Orange Silverado Canyon. Santa Ana Mountains Comment
  IRVC441  Gnaphalium bicolor B. Savage 1965-5-15 Orange Newport Beach Comment
  IRVC14735  Gnaphalium californicum A. S. Boughey 1968-7-9 388 Orange Santa Ana mtns: upper Santiago Canyon. Peninsular Ranges Comment
  RSA0036807  Gnaphalium californicum Darren Day, Hal Willis 1984-4-28 002 Orange At the side of Laguna Canyon Rd. exactly 2.5 miles outside of the city limits, heading north. Comment
  UCR66090  Gnaphalium canescens subsp. microcephalum A. C. Sanders 1990-10-6 10194 Orange South Coast, Newport Back Bay, SW side at North Star County Beach, SW end of the bay, c. 2 km inland from Hwy 1/ Pacific Coast Hwy 3 Comment
  RSA1303  Gnaphalium leucocephalum J. T. Howell 1928-9-6 1208 Orange Santa Ana River, Rancho Santa Ana. 152 Comment
  UCR126410  Gnaphalium leucocephalum Fred M. Roberts 2003-7-24 5963 Orange South Coast, San Juan Capistrano, San Juan Creek, c. 0.1 km NE of La Novia Bridge 27 Comment
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Jun 4 2013
  RSA782059  Gnaphalium luteoalbum Mark A. Elvin 2003-2-23 2312 Orange Irvine, San Joaquin Marsh along the berm of San Diego Creek 3 Comment
  UCR190987  Gnaphalium stramineum A. C. Sanders, Fred M. Roberts 2008-4-22 34991 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hicks Canyon haul road, just above Irvine Ranch gate and road to cement plant, c. 1 mile NE of Rattlesnake Reservoir 244 Comment
  UCR107447  Grindelia camporum B. G. Pitzer, M. Georgiady 1997-4-5 3086 Orange San Joaquin Hills, Crystal Cove State Park, portion across highway on the beach, bluffs immediately above beach and adjacent terraces for southeast end of park. 24 Comment
  RSA788907  Grindelia camporum var. bracteosa Fred M. Roberts 2008-6-26 7059 Orange Lomas de Santiago: Loma Ridge along West Loma Ridge Road, c.a. 1 km N Haul Rd., 2.5 km NNW Bee Peak, Irvine Ranch Land Conservancy. 382 Comment
  HSC79042  Grindelia hirsutula Steve Boyd 1981-5-13 Orange Pelican Hill, Irvine Ranch property in the San Joaquin Hills S of Corona del Mar Comment
  RSA594898  Guillenia lasiophylla Fred M. Roberts 1995-5-19 4943 Orange Santa Ana Mtns, San Juan canyon, S of California, Route 74, 2.3km WSW lower San Juan Picnic Ground. 512 Comment
  CDA6157  Guizotia abyssinica Robert L. Pope 1967-6-13 Orange 0 Comment
  UCR192102  Gutierrezia californica A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35288 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir 300 Comment
  RSA627787  Hainardia cylindrica Scott D. White 1998-6-26 6785 Orange South Coast: Univ. of Calif. Irvine Campus. Along mapped intermittent blueline stream just N of Bonita Cyn Dr. 61 Comment
  IRVC26430  Haplopappus canus Mark A. Elvin 2004-2-22 3154 Orange UCI Arboretum Southern Coastal 15 Comment
  RSA756326  Haplopappus menziesii A. C. Sanders, Fred M. Roberts, Jutta Burger 2009-10-21 37196 Orange Lomas de Santiago, Limestone Canyon, west of Limestone Canyon Rd. 366 Comment
  UCR231201  Haplopappus squarrosus A. C. Sanders, T. B. Salvato, Kent Beaman 2011-11-3 39939 Orange Peninsular Range; Santa Ana Mtns., near Pleasants Peak along the Main Divide Truck Trail 1143 Comment
  HSC5758  Haplopappus venetus J. W. Johnson 1961-3-29 Orange Newport Beach, N slope overlooking upper Newport Bay Comment
  SDSU16264  Harpagonella palmeri Genie Fleming, Dana Hogan 2003-4-7 21 Orange Collected from CSS study plot (SJHW 11, J. Diffendorfer, SDSU) in Crystal Cove State Park. 163 Comment
  UCR241069  Harpagonella palmeri Dick Newell, Don Millar, Gigi Logan 2013-3-19 321 Orange Peninsular Range; Santa Ana Mtns., Silverado-Mod. Trail, 1.27 miles north of Blackstar and Silverado Canyon Rd. 366 Comment
  RSA0066588  Harpagonella palmeri Fred M. Roberts, Carol A. Roberts, Dave Bontrager 1990-4-28 4587 Orange Rancho Mission Viejo: Christianitos Canyon, 4.0 km E Playa Survey Marker. 174 Comment
  CAS-BOT-BC307267  Hazardia squarrosa var. grindelioides John Thomas Howell 1927-10-22 3160 Orange N. side of Santa Ana Canyon 304 Comment
  LA203734  Hazardia squarrosa var. grindelioides W. Pequegnat; 1937-8-31 sn Orange Santa Ana Mountains, Indian Canyon, (Seen also in branch of Trabuco Canyon about 3000 ft.) 365 Comment
  RSA5276  Hazardia squarrosa var. grindelioides B. D. Stark 1932-12-15 4452 Orange Rancho Santa Ana, slope above grove #4 145 Comment
  UCSB52425  Hazardia squarrosa var. grindelioides Roberts, Fred 1982-9-15 Orange Rancho Mission Viejo: 6.4km ENE San Juan Capistrano by road on Rte. 74; 0.9km NNE Viejo Peak 115 Comment
  RSA585059  Hedypnois cretica D. Atwood 1993-3-28 17716 Orange Bolsa Chica Ecological Reserve, California Dept. of Fish and Game. Sea level. 0 Comment
  SD247594  Hedypnois cretica R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49670 Orange Northern Santa Ana Mountains: Coal Canyon (NW of Sierra Peak). Comment
  RSA0013858  Helianthemum scoparium Fred M. Roberts 2012-5-10 7565 Orange San Joaquin Hills: Buck Gully, S Fork, north slope Pelican Hill, 0.6 km N summit Pelican Hill, north of Pelican Hill Drive. 183 Comment
  RSA0096954  Helianthemum scoparium var. aldersonii P. A. Munz 1923-6-14 7054 Orange Glen Ivy Trail to Santiago Peak. 1220 Comment
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Feb 22 2019
  RSA5357  Helianthemum scoparium var. scoparium C. B. Wolf, B. D. Stark, Adrian Wolf 1932-12-19 4439 Orange Main divide of Santa Ana Mts. between Sierra Peak and Skyline Drive 762 Comment
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Feb 23 2019
  UCSB18113  Helianthus annuus Daniel, Dick 1964-3-28 Orange 0.5 miles S of junction of Santiago Canyon Road and Chapman Street, 4 miles E of Orange 274 Comment
  UCR109773  Helianthus ciliaris R. D. Goeden, Don W. Ricker 1965-7-7 s.n. Orange Laguna Hills, Veeh Ranch, c. 1.5 mi. west of El Toro 91 Comment
  POM360030  Helianthus ciliaris E. L. Paddock 1941-8-1 s.n. Orange Graham-Loftus property, 2 miles east of Brea Comment
  RSA725574  Helianthus gracilentus Fred M. Roberts, Robert L. Allen, Trish Smith 2007-6-15 6531 Orange dirt road along ridge between Black Star and Fremont Canyons, 4.4km ENE Irvine Lake spillway and 2.4km WSW Hidden Ranch. 662 Comment
  RSA736587  Helianthus gracilentus Keith E. Hoffmaster 1934-5-13 173 Orange Santa Ana Mountains Comment
  RSA0016430  Helianthus nuttallii subsp. parishii F. W. Peirson 1924-10-19 5247 Orange Wintersberg Comment
  CDA20834  Heliotropium curassavicum P. Akers 2006-3-25 PA 8 -06 Orange Peninsular Ranges; Yorba Linda. Santa Ana River S of La Palma Dr, 0.6-0.9 mi E of Yorba Linda Dr. 121 Comment
  IRVC29807  Heliotropium curassavicum Laura D. Lyons, Mark A. Elvin 2006-9-23 421 Orange San Joaquin Marsh Freshwater Marsh, UC Natural Reserve; SW edge, along San Diego Creek, N of University Drive, E Hwy 73. Southern Coastal 2 Comment
  UCR195005  Heliotropium curassavicum A. C. Sanders, Fred M. Roberts 2008-8-7 35983 Orange Peninsular Range; Santa Ana Mtns., lower Weir Canyon, at narrow gorge c. 0.6 mi. above mouth of cyn at Irvine Ranch gate 192 Comment
  CDA40618  Heliotropium curassavicum Bumgardner & Harnett 1957-7-23 s.n. Orange Santa Ana Freeway. 0 Comment
  RSA0037205  Heliotropium curassavicum Darren Day, Hal Willis 1984-5-17 025 Orange This plant was found growing 2.3 miles outside of the city of Laguna Beach, on Laguna Canyon Rd. heading north, on the east side of the road. Comment
  RSA232222  Heliotropium curassavicum var. oculatum James Henrickson 1970-7-24 4994 Orange 2 miles NW of Huntington Beach around small freshwater industrial pond at eastern margin of Bolsa Chica Salt Marsh along Huntington Beach Mesa. 0 Comment
  RSA611435  Heliotropium curassavicum var. oculatum L. C. Wheeler 1931-8-16 34 Orange Santa Ana River 152 Comment
  RSA539398  Hemizonia australis D. E. Bramlet 1990-11-3 2064 Orange W side Upper Newport Back Bay, ca 50 m NW of the Delhi channel. Population ca 100 m SE of end of University Dr. 23 Comment
  CLARK-A1528-238  Hemizonia fasciculata Cesareo Perez 1971-5-18 19 Orange Villa Park Comment
  POM202163  Hemizonia fasciculata L. M. Booth 1932-5-12 1038 Orange Newport Bay Comment
  RSA702702  Hemizonia fasciculata Scott D. White, Michael Honer 2004-5-17 10386 Orange South Coast: City of Laguna Niguel. Ridges and open slopes directly north of the intersection of Crown Valley Parkway and Pacific Island Dr. 61 Comment
  RSA485309  Hemizonia fasciculata Chris Lauterbach 1971-5-9 32 Orange Carbon Canyon road, the intersection of CAlifornia 90 and 142. 76 Comment
  UCR157704  Hemizonia parryi subsp. australis Adrian Wolf 1998-5-27 326 Orange South Coast, Newport Slough, south of oil fields, between Huntington Beach, Costa Mesa and Newport Beach, just south of the channelized mouth of the Santa Ana River 2 Comment
  UCR248971  Hemizonia parryi subsp. australis Jeremiah George, Audrey J. George 2013-11-21 s.n. Orange Los Alamitos, adjacent to Los Alamitos Racetrack, north end of Katella Ave. at junction with Enterprise Dr. 9 Comment
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May 15 2019
  RSA792475  Hesperocnide tenella Justin M. Wood 2011-2-28 3266 Orange South Coast: Santa Ana River, marsh just upstream of Pacific Coast Highway. Plants collected throughout the marsh and along the adjacent bike path. 0 Comment
  UCR232761  Hesperolinon micranthum Robt. L. Allen, Christopher M. Barnhill, Dylan Hannon 2005-5-7 12515 Orange Peninsular Range; Santa Ana Mtns., Coal Canyon, upper region above old mining area, southeast of utility road that runs on ridge between Coal and Gypsum canyons 525 Comment
  POM201868  Heteromeles arbutifolia L. M. Booth 1932-6-7 1166 Orange Newport Lagoon. Comment
  RSA0072401  Heteromeles arbutifolia A. C. Sanders, Fred M. Roberts 2008-7-16 35840 Orange Lomas de Santiago, Dripping Springs off Limestone Canyon, c. 7.5 mi. ESE of Tustin. 391 Comment
  RSA658198  Heteromeles arbutifolia T. A. Daubert 1991-5-26 657 Orange Tucker Wildlife Sanctuary, Modjeska Canyon, fire road. Comment
  UCR192076  Heteromeles arbutifolia A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35277 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir 300 Comment
  UCSB17165  Heteromeles arbutifolia Gerhart, Janet 1963-2-22 Orange 1/2 mile south of Trabuco Canyon Road junction on Gubernadora Canyon Road, 11.4 miles east of U.S. Highway 101 at El Toro Marine Base 304 Comment
  UCSB47998  Heteromeles arbutifolia Roberts, Fred 1980-7-7 Orange Santa Ana Mtns., San Juan Canyon, Hwy 74, 2.4km ENE San Juan Guard Station; 0.3km W Bench Mark 1100 345 Comment
  RSA0075807  Heterotheca grandiflora Kenneth Beard 1934-03 s.n. Orange Riverbank of Santa Ana River. Comment
  RSA0075813  Heterotheca grandiflora Dolores Perez 1981-4-11 6 Orange Carbon Canyon Rd., 6 miles E. of junction with Ca Hwy 90. Comment
  RSA752894  Heterotheca sessiliflora subsp. echioides A. C. Sanders, Fred M. Roberts 2008-8-7 35973 Orange lower Weir Canyon, at narrow gorge c. 0.6 mi. above mouth of cyn at Irvine Ranch gate. 185 Comment
  RSA93359  Heterotheca sessiliflora subsp. echioides F. W. Peirson 1924-8-29 5086 Orange 2.5 miles from Balboa on road inland along creek. Comment
  UCR149496  Heterotheca subaxillaris Scott D. White, Michael Honer 2004-5-17 10383 Orange South Coast, City of Laguna Niguel. Ridges and open slopes directly N of the intersection of Crown Valley Parkway and Pacific Island Dr 183 Comment
  UCD150984  Hieracium argutum D. S. Park 2010-4-25 29 Orange Whiting Ranch Wilderness Park, along trail. Open, disturbed areas. 254 Comment
  RSA38433  Hoffmannseggia glauca E. L. Paddock 1946-6-14 11519 Orange Rancho Santa Ana, along AT & SF Ry., above old pear orchard. Area of approximately 100 sq. ft. 121 Comment
  CAS-BOT-BC207961  Hoffmannseggia glauca Goodwin 1933-7-6 s.n. Orange Unspecified Comment
  CDA38363  Hoffmannseggia glauca M. K. Bellue 1933-6-3 s.n. Orange 0 Comment
  POM348811  Hoita macrostachya M. B. Dunkle 1934-6-18 3988 Orange San Juan Canyon, Southern Coastal. 305 Comment
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Oct 3 2011
  RSA5339  Holodiscus discolor B. D. Stark 1933-1-4 4491 Orange Bottom of Claymine Canyon. No. end of Santa Ana Mts. 305 Comment
  RSA698657  Holodiscus discolor Minor Warne 1934-4-28 s.n. Orange Ladd Canyon-Santa Ana Mts. PR8. Comment
  RSA678738  Hordeum intercedens Fred M. Roberts, Carol A. Roberts, Robert Allen 2003-5-11 5857 Orange Dana Point Headlands: hilltop, 0.6km SSW Richard Henry Dana School south of Pacific Coast Highway and north of Scenic Drive., (UTM: 11S - 04 33 104mE, 37 02 642mN) 73 Comment
  RSA688979  Hordeum intercedens Fred M. Roberts, Robt. Allen 2003-4-1 5634 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, western slopes of Cristinitos Cyn., 0.16km WSW Gato Gate. Comment
  UCD85673  Hordeum intercedens D. E. Bramlet; Fred Roberts 2003-5-1 3423 Orange Donna O'Neill Reserve. Along north ridge trail. 305 m W of Cristianitos Rd., and 1 km N of the E-W access road. 128 Comment
  UCR150375  Hordeum intercedens D. E. Bramlet 1998-5-19 2620 Orange Coastal Plains & Basins/Los Angeles Basin region, San Juan Hills: 1.13 km west of La Pata Ave. and 1.22 km N of Prima Deshecha Canada. A ridgeline 213 m east of a small canyon 152 Comment
  UCR150381  Hordeum intercedens D. E. Bramlet 1998-5-25 2627 Orange Coastal Plains & Basins/Los Angeles Basin region, 120 m N of the Newport Beach Library and 61 m west of McArthur Blvd., 914 m south of San Miguel Drive 49 Comment
  UCR158154  Hordeum intercedens Adrian Wolf 1998-4-21 127 Orange South Coast, Coastal Hills, Aliso/Woods Canyon Regional Park, Aliso Canyon 0.5 km east of mouth of Woods Canyon, north of access road 55 Comment
  RSA627754  Hordeum marinum subsp. gussoneanum Scott D. White 1998-5-31 s.n. Orange UCI Campus; Southwest of Farm School site (now proposed as Student Rec. Ctr.). 24 Comment
  UCR154289  Hordeum murinum Mark A. Elvin 2004-5-2 3405 Orange Southern Coastal, Irvine: San Joaquin Freshwater Marsh, near Campus and University Drives; 1.7 km (air) NNW UC Irvine campus center 3 Comment
  HSC10201  Hordeum murinum subsp. leporinum D. W. Snell 1964-3-22 1 Orange 1/2 mi. S of Imperial Hwy., 1 mi. W of Yorba Linda. Comment
  POM224742  Horkelia cuneata subsp. puberula Philip A. Munz 1936-4-20 14606 Orange Laguna Beach, Mt. Olympus 152 Comment
  CAS-BOT-BC537312  Horkelia cuneata var. puberula Philip A. Munz 1936-4-20 14606 Orange Mt. Olympus, Laguna Beach 152 Comment
  RSA759250  Hulsea heterochroma Robt Allen, G. Victor Leipzig 2008-6-20 s.n. Orange Upper Silverado Canyon, along Maple Springs Truck Trail, 5.7 road miles up from Maple Springs Forest Gate, 0.8 road miles down from junction with Main Divide Truck Trail. Southwestern end of short road spur. 1313 Comment
  JEPS17473  Hydrocotyle umbellata F. W. Peirson 1924-10-19 5237 Orange Wintersberg Comment
  UCD170481  Hypericum canariense R. E. Riefner 2010-6-9 10- 56 Orange City of San Juan Capistrano, La Novia Ave. at Valle Rd. 45 Comment
  IRVC814  Hypochaeris glabra C. Thompson 1965-4-12 Orange Laguna Hills Comment
  IRVC26523  Hypochaeris radicata Mark A. Elvin 2004-2-22 3148 Orange UCI Arboretum Southern Coastal 15 Comment
  RSA789497  Iberis gibraltarica John Murphy 1938-6-6 14 Orange Birch Park Comment
  CAS-BOT-BC438782  Ipomoea cairica R. E. Riefner, Jr. 2012-11-27 12 -563 Orange City of Laguna Beach, South Crescent Beach, Circle Way near Cliff Drive. 3 Comment
  RSA799949  Isocoma menziesii D. M. Ray 2011-1-19 2 Orange South Coast: Santa Ana River: along right of way road just west of Least Tern Island. 0 Comment
  CAS-BOT-BC311732  Isocoma menziesii var. vernonioides L. R. A. 1901-6-1 1783 Orange San Joaquin Hills Comment
  RSA573432  Isocoma menziesii var. vernonioides Steve Boyd, Tim Ross 1994-9-14 8343 Orange Southern Santa Ana Mtns, San Mateo Canyon Wilderness Area of the Cleveland National Forest, Lucas Canyon trailhead at Forest Service4 Road 7S06 on ridge dividing Aliso and Verdugo Canyons. 476 Comment
  RSA5815  Isocoma menziesii var. vernonioides C. B. Wolf 1932-6-28 3807 Orange Edge of field on Bryant Ave., 300 ft. W. of N.E. corner of N.W. 1/4 of S.E. 1/4 sect27 T4S RNW 9 Comment
  RSA680324  Isocoma menziesii var. vernonioides Scott D. White, Jeff Lincer 2003-7-7 9615 Orange Former El Toro Marine Corps Air Stn. East of 'El Toro Marine Sch.' and Irvine Blvd.; site of former dump. 140 Comment
  SBBG62842  Isocoma menziesii var. vernonioides M. N. Ackley -Sep-1928 428 Orange Sunset Beach 8 Comment
  UC1090402  Isomeris arborea Milo S. Baker 1958-5-20 13307 Orange Newport Bay Comment
  UCR96319  Isomeris arborea B. G. Pitzer 1996-4-30 2796 Orange San Joaquin Hills, Crystal Cove State Park, south of City of Irvine on State Hwy 1 (Pacific Coast Hwy) 15 Comment
  UC72699  Isomeris arborea E. A. Zumbro 1902-1 372 Orange Comment
  UCR239636  Isomeris arborea var. arborea Fred M. Roberts 2012-4-24 7504 Orange San Joaquin Hills, Buck Gully, west of intersection of Ridge Park Road and Newport Coast Drive, 1.5 km west of Signal Peak 179 Comment
  UCR247919  Iva hayesiana Fred M. Roberts 2012-7-18 7670 Orange SAN JOAQUIN HILLS: Newport Beach, Buck Gully, Buck Gully Trail, west end, just east of north terminus of Poppy Street and 2.1 km WNW summit of Pelican Hill 37 Comment
  POM122750  Jaumea carnosa Marcus E. Jones 1924-8-26 s.n. Orange Newport. Comment
  POM201735  Jaumea carnosa L. M. Booth 1932-6-9 1183 Orange Newport Bay. Comment
  RSA895  Jaumea carnosa J. T. Howell 1927-6-30 245 Orange Bryant Ranch near Long Beach. 15 Comment
  UC537018  Jaumea carnosa Lawrence M. Booth 1932-6-9 1183 Orange Newport Bay Comment
  PASA1561  Jaumea carnosa Frank W. Peirson 1924-8-29 Orange 3 miles from Balboa on road inland along creek Comment
  RSA588852  Jepsonia parryi Fred M. Roberts Jr. 1989-11-7 4451 Orange Rancho Mission Viejo: TRW Lease Holding, ridge south of the confluence of Gabino and Blind Canyons, 5.0 km NE Clemente Survey Marker 155 Comment
  RSA0011055  Juglans californica D. E. Bramlet 2008-6-5 4291 Orange Santa Ana Mtns foothills: Tributary to Weir Cyn., 731 m N of the SCE Transmission Line & 229m west of Weir Canyon Road. 257 Comment
  RSA0011065  Juglans californica Lyman Benson 1947-4-27 12340 Orange Carbon Canyon. Mr. Range: Puente Hills; Drainage area: Pacific Slope. 244 Comment
  UC718137  Juglans californica var. californica C. B. Wolf 1934-9-21 6141 Orange lower end Brea Canyon; Puente Hills Comment
  CAS-BOT-BC334208  Juglans hindsii R. E. Riefner, Jr. 2013-11-6 13 -233 Orange City of Laguna Beach, Laguna Canyon, N of Phillips St. on E side of Laguna Canyon Rd. 71 Comment
  SD253479  Juglans hindsii R. E. Riefner Jr. 2013-11-6 13 234 Orange City of Laguna Beach, Laguna Canyon, N of Phillips St on E side of Laguna Canyon Rd. 71 Comment
  UCR246397  Juglans hindsii R. E. Riefner Jr. 2013-11-6 13- 233 Orange South Coast, city of Laguna Beach, Laguna Canyon, north of Phillips Street on east side of Laguna Canyon Road 71 Comment
  RSA0080065  Juglans hindsii R. E. Riefner Jr. 2011-9-10 11 -124 Orange Santa Ana Canyon, I-91 northbound, S side of freeway, located within 100 ft of the Riverside County line. 127 Comment
  CDA23119  Juncus acutus subsp. leopoldii A. Thomas, Mark A. Elvin 2006-2-23 609238 Orange Southern Coastal; San Joaquin Marsh Freshwater Marsh, UC Natural Reserve; southwest edge, along San Diego Creek, northwest of University Drive, east Highway 73. Comment
  IRVC29826  Juncus acutus subsp. leopoldii Artie Thomas, Mark A. Elvin 2006-9-23 609238 Orange San Joaquin Marsh Freshwater Marsh, UC Natural Reserve; SW edge, along San Diego Creek, N of University Drive, E Hwy 73. Southern Coastal 2 Comment
  RSA107  Juncus acutus subsp. leopoldii J. T. Howell 1927-6-30 242 Orange Bryant Ranch near Long Beach. 15 Comment
  UC1280019  Juncus acutus subsp. leopoldii Peter H. Raven 1957-9-28 11401 Orange just n Huntington Beach Comment
  RSA0014067  Juncus arcticus var. balticus Fred M. Roberts, R. E. Riefner 2010-5-30 7021 Orange Lomas de Santiago: Loma Ridge, Hanging Man s Tree Cyn., along Hanging Man s Tree Cyn. Rd., c.a. 0.4km W Santiago Cyn. Rd., and 1.2 km N Bolero Lookout. 372 Comment
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Sep 21 2020
  RSA184085  Juncus bufonius I. L. Wiggins 1966-3-31 20571 Orange Fullerton. Comment
  RSA788923  Juncus dubius Fred M. Roberts 1999-6-23 5245 Orange Peninsular Range, Santa Ana Mtns. Region: Lomas de Santiago: tributary to Santiago Creek, ridge between Limestone Cyn, and Santiago Creek wash across from Pancho Canyon, 1.6 km ENE Bolero Spr. and 1.6 km NNW Bolero Lookout. 396 Comment
  UC1543046  Juncus effusus subsp. austrocalifornicus Donald G. Nelson 1935-4-6 244 Orange e of San Juan Capistrano (200-300 ft below main highway, about 4 mi from summit); San Juan Canyon Comment
  RSA788970  Juncus macrophyllus Robert F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49575 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74) Comment
  UCD169360  Juncus macrophyllus A. C. Sanders; Fred M. Roberts, Michelle Balk 2006-7-20 33045 Orange Peninsular Range; Santa Ana Mtns., San Juan Canyon, from Lower San Juan Picnic Area to c. 1 mile downstream, parallel to Hwy 74 and near Riverside Co. line. 366 Comment
  UCR217667  Juncus macrophyllus Fred M. Roberts, R. E. Riefner Jr. 2008-5-30 7024 Orange South Coast, Lomas de Santiago, Loma Ridge, Hanging Man's Tree Canyon, along Hanging Man's Tree Canyon Road, c. 0.4 km west of Santiago Canyon Road and 1.23 km north of Bolero Lookout 372 Comment
  POM1553  Juncus mexicanus C. B. Bradshaw s.n. Orange Laguna Beach Comment
  RSA6061  Juncus mexicanus E. R. Johnson 1932-5-5 3702 Orange Santa Ana River, Rancho Santa Ana 122 Comment
  UCR247891  Juncus patens Fred M. Roberts 2012-7-18 7662 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
  UCR174221  Juncus rugulosus A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33025 Orange Peninsular Range; Santa Ana Mtns., San Juan Canyon, from Lower San Juan Picnic Area to c. 1 mile downstream, parallel to Hwy 74 and near Riverside Co. line 396 Comment
  RSA554638  Juncus textilis Scott D. White 1992-10-14 963 Orange Vicinity of city of Brea, immediately N of Carbon Canyon Road.& E of Placentia Ave., ca. 1 mile (airline) SSE of Tonner Canyon. 183 Comment
  RSA644963  Juncus textilis R. E. Riefner, Adrian Wolf 2000-1-24 20 -108 Orange NCCP North Ranch Policy Plan Area: Fremont Canyon: N of Santiago Creek & immediately N. of major stream fork. 305 Comment
  UC536958  Juncus textilis Lawrence M. Booth 1932-6-7 1159 Orange Newport Lagoon Comment
  JEPS67112  Juncus torreyi S. B. Parish and W. F. Parish Oct 1882 1593 Orange Orange Comment
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Jul 18 2010
  RSA750922  Juncus xiphioides A. C. Sanders, Fred M. Roberts 2008-7-3 35704 Orange Weir Canyon, along Weir Canyon Rd. 1.2 mi. SSE of Walnut Canyon Reservoir, below Upper Blind Canyon Rd. 212 Comment
  UCR174211  Juncus xiphioides A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33046 Orange Peninsular Range; Santa Ana Mtns., San Juan Canyon, from Lower San Juan Picnic Area to c. 1 mile downstream, parallel to Hwy 74 and near Riverside Co. line 396 Comment
  RSA612318  Keckiella antirrhinoides Louis C. Wheeler 1932-7-9 943 Orange Santa Ana River 5 miles below Prado. 152 Comment
  RSA79829  Keckiella antirrhinoides F. W. Peirson 1922-5-18 3027 Orange Santa Ana River. 122 Comment
  NY786524  Keckiella antirrhinoides var. antirrhinoides D. C. Michener 1980-6-5 3668 Orange Santa Ana Mountains. San Juan river valley, on terrace near abandoned mine(s). Comment
  SD245484  Keckiella antirrhinoides var. antirrhinoides Robert Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49601 Orange Santa Ana Mountains: rocky ravine tributary to San Juan Canyon, along Ortega Highway (74) about 2 miles above San Juan Fire Station. Comment
  NY790209  Keckiella cordifolia D. C. Michener 1980-7-14 3704 Orange Santa Ana Mountains. Starr Ranch Audubon Sanctuary. Crow Creek, ca. 1.3 miles north of confluence with Bell Canyon. Comment
  RSA34536  Keckiella cordifolia N. C. Cooper 1944-6-4 1340 Orange San Juan Canyon. 305 Comment
  SEINET10499891  Keckiella cordifolia James S. Miller 1992-5-8 Miller 7452 Orange 2 mi E of the border of Cleveland National on California route 74. 310 Comment
  UCR36089  Keckiella cordifolia D. C. Michener 1980-7-14 s.n. Orange Santa Ana Mtns., Starr Ranch Audubon Sanctuary. Crow Creek, c. 1.3 miles north of confluence with Bell Canyon Comment
  POM7129  Koeleria macrantha P. A. Munz, L. T. Street 1919-5-3 2622 Orange Santa Ana River Canyon. Comment
  RSA708524  Koeleria macrantha Fred M. Roberts, Robert L. Allen, Chris Barnhill, Nancy Hatfield 2005-5-30 6242 Orange Modjeska Peak summit, c.a. 60m south of highest point. 1675 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
  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-BC354308  Lagunaria patersonia R. E. Riefner, Jr. 2009-12-3 09 -247 Orange City of San Clemente, N of San Clemente Pier, along main beach trail vicinity of Buena Vista St at West Canada St. 7 Comment
  UC1132172  Lamarckia aurea A. Lewis 1934-4-1 377 Orange Coal Mine 304 Comment
  UCR192490  Lamarckia aurea A. C. Sanders, Fred M. Roberts 2008-3-25 34557 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  CAS-BOT-BC338902  Lasthenia californica C. B. Wolf 1931-3-6 1847 Orange 1 mile above Trabuco Oaks, Trabuco Canyon, West slope of the Santa Ana Mts. 518 Comment
  CAS-BOT-BC338908  Lasthenia californica Agnes M. Bowman 1899-6-1 s.n. Orange Orange Comment
  UCR203976  Lasthenia coronaria D. E. Bramlet, J. E. Harrison 2008-4-3 4149 Orange Peninsular Range; Santa Ana Mountains, South Bee Canyon, Bowerman landfill site, 1.2 km south of the Bee Canyon access road, and 122 m west of the active landfill 224 Comment
  OBI81435  Lasthenia glabrata Unknown 2013-3-10 13 -39 Orange City of Lake Forest, along El Toro Rd. at Destry Rd. 211 Comment
  CAS-BOT-BC329171  Lasthenia glabrata subsp. coulteri E. R. Johnson 1931-4-7 1937 Orange East end camp, Bryant Ranch, Los Alamitos 9 Comment
  SD248339  Lasthenia glabrata subsp. glabrata R. E. Riefner Jr. 2013-3-10 13 39 Orange City of Lake Forest, along El Toro Rd., at Destry Rd. 210 Comment
  UCR240171  Lasthenia glabrata subsp. glabrata R. E. Riefner Jr. 2012-5-5 12- 85 Orange South Coast, city of San Clement, Antonio Parkway, c. 0.25 mi north of Hwy 74 88 Comment
  UCR247510  Lasthenia glabrata subsp. glabrata R. E. Riefner Jr. 2013-3-10 13- 39 Orange city of lake Forest, along El Toro Road at Destry Road 211 Comment
  POM294108  Lasthenia gracilis Lyman Benson 1946-4-27 12056 Orange Corona Del Mar; Drainage area: Pacific Ocean. 15 Comment
  SD240877  Lasthenia gracilis Jeffrey Ross, R. Zaka 1998-5-2 39 Orange South Coast: North side of San Joaquin Hills; William R. Mason Regional Park, near intersection of Yale Avenus and University Drive (Tustin 7.5'Q) 25 Comment
  UC2061417  Lasthenia gracilis Rachael L. Olliff Yang with Alice J. Olliff 2017-3-30 13 Orange UC Irvine Ecological Reserve, about 100 m West of Los Trancos Drive, along the trail. Comment
  SEINET5327270  Lathyrus laetiflorus R. Nelson, Baumann; Kondratieff; Sargent 1988-1-12 5117 Orange San Juan Creek at Lower San Juan Campgroud, Cleveland National Forest. 366 Comment
  SEINET6073121  Lathyrus laetiflorus Unknown 1988-1-12 5117 Orange Cleveland National Forest, San Juan Creek at Lower San Juan Campground. Comment
  IRVC21512  Lathyrus tingitanus T. W. Mulroy 1973-5-21 1866 Orange San Juan Canyon, Hwy 74, ca. 3.2km E San Juan Guard Station. Santa Ana Mountains 315 Comment
  UCR193068  Lathyrus vestitus A. C. Sanders, T. B. Salvato 2008-5-13 35334 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Canyon at mouth of Hangman Tree Canyon and lower Hangman Tree Cyn, c. 1/2 mile below Modjeska Canyon confluence 366 Comment
  RSA406636  Lathyrus vestitus subsp. alefeldii M. B. Dunkle 1934-2-19 3844 Orange San Juan Canyon, 366 Comment
  RSA535966  Lathyrus vestitus subsp. alefeldii Fred M. Roberts, Carol A. Roberts 1989-4-7 4265 Orange Aliso-Wood Canyons Regional Park: Upper Wood Canyon, ca. 0.5 km SW Moulton Peak. 102 Comment
  CHSC56083  Lathyrus vestitus var. vestitus Mike Cecchini 1978-6-23 1 Orange Ca 1 km northeast of Tucker Wildlife Sanctuary and 0.5 km southeast of Modjeska Reservoir; 10.5 km southeast of Tustim. 457 Comment
  UCD106651  Lathyrus vestitus var. vestitus W. W. 1951-4-25 s.n. Orange Border of Riverside County, west side of Santa Anna Mts. 609 Comment
  UCR141338  Laurus nobilis Robert DeRuff 1990-3-31 391 Orange Southern Coast, Newport Beach, Newport Back Bay, East Bluff 9 Comment
  JEPS68631  Lavatera assurgentiflora subsp. assurgentiflora Lawrence M. Booth 1932-5-26 1121 Orange Newport Bay Comment
  UCR120561  Lavatera olbia O. F. Clarke 1994-6-17 s.n. Orange Laguna Canyon Comment
  CAS-BOT-BC380858  Layia platyglossa P. C. Everett 1935-4-15 2349 Orange Atwood, 0.8 miles e. of Atwood on the south side of santa Fe R.R. 106 Comment
  RSA699674  Layia platyglossa Keith E. Hoffmaster 1935-4-19 s.n. Orange Santiago can. near Silverado ca., Santa Ana Mountains. Comment
  RSA17056  Layia platyglossa subsp. campestris Percy C. Everett 1935-4-15 6462 Orange 8/10 mile E of Atwood on S side of Santa Fe RR. 107 Comment
  RSA463151  Layia platyglossa subsp. campestris Lyman Benson 1932-3-26 3193 Orange Dana Point. 60 Comment
  RSA896  Layia platyglossa subsp. campestris J. T. Howell 1928-2-25 844 Orange Between Nolina and Bee Canyon, Rancho Santa Ana. 152 Comment
  RSA603347  Lemna gibba Scott D. White, B. Leatherman 1997-6-12 5325 Orange East of San Juan Capistrano: San Juan Creek between Highway 74 bridge and Mission Vieja site, i.e., ca. 2 to 4 mi E of I-15 / Hwy 74 junction. 46 Comment
  RSA99  Lemna trisulca J. T. Howell 1927-7-15 400 Orange Santa Ana River, Rancho Santa Ana [Botanic Garden] 152 Comment
  RSA0054938  Leonotis leonurus R. Engel 1934-10-10 s.n. Orange Santa Ana. Comment
  RSA759148  Leontodon saxatilis Robt Allen 2008-4-9 s.n. Orange Irvine, Irvine Valley College, near N entrance to Student Services building. 53 Comment
  RSA561497  Lepechinia cardiophylla Steve Boyd, Kyle Boyd 1992-7-9 7653 Orange Northern Santa Ana Mountains, along the main crest of the range, north of Pleasants Peak and south of Oak Flat (aka Oat Flat), 3.5 miles south of junction of Main Divide and Skyline Roads. Comment
  RSA588894  Lepechinia cardiophylla Fred M. Roberts, Carol A. Roberts 1990-5-30 4660 Orange Ridge between Upper Hagador Canyon and the West Fork of Ladd Canyon, Main Divide Truck Trail, 0.8km WNW Pleasants Peak. 1122 Comment
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Feb 22 2017
  UCR237830  Lepidium Mark A. Elvin 2003-2-2 2263 Orange South Coast, San Joaquin Marsh, UCI campus SSE of intersection of Jamboree Blvd. and Campus Dr. 2 Comment
  POM183940  Lepidium lasiocarpum P. A. Munz 1932-3-29 12191 Orange Costa Mesa. Comment
  RSA682597  Lepidium lasiocarpum Scott D. White, Amanda Duchardt 2003-3-27 8861 Orange Canyon bottom and west facing slopes above Canada Gobernadora. 91 Comment
  IRVC1102  Lepidium lasiocarpum C. Hooven 1965-4-1 Orange Jamboree Rd. Newport Beach Comment
  RSA5805  Lepidium lasiocarpum C. B. Wolf 1932-6-28 3777 Orange Extreme SW corner of Bryant Ranch. 9 Comment
  UCR197577  Lepidium latifolium A. C. Sanders, Fred M. Roberts 2008-9-18 36090 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Santiago Creek Canyon c. 0.5-0.8 miles above the highway bridge 300 Comment
  UCR205991  Lepidium latifolium Adrian Wolf 1997-6-6 014 Orange South Coast, Irvine, southeast of corner of MacArthur Blvd and Bison Road, 100 ft from wetland and 50 ft from Bison mudflats 38 Comment
  UCR266422  Lepidium latifolium D. E. Bramlet 2009-11-27 4427 Orange South Coast, San Diego Creek between Irvine and Newport Back Bay 8 Comment
  RSA184171  Lepidium nitidum I. L. Wiggins 1966-2-12 20431 Orange N. side of La Palma Ave. near Harbor Blvd., Anaheim. Comment
  UCR179765  Lepidium oblongum R. E. Riefner Jr. 2006-4-8 06- 112 Orange South Coast, San Juan Capistrano (city), San Juan Creek at La Novia Ave. 22 Comment
  RSA362301  Lepidium pinnatifidum Fred M. Roberts 1985-6-2 1836 Orange San Clemente: El Camino Real, 0.2 km by road WNW Ave Pico. 5 Comment
  RSA753422  Lepidium virginicum var. robinsonii D. E. Bramlet, Fred Roberts 2008-5-13 4268 Orange Upper Eastern area of Weir Cyn, 446m west of Hwy 241 & 958m N of Weir Cyn Road 381 Comment
  CAS-BOT-BC274018  Leptochloa fusca subsp. uninervia Peter H. Raven 1961-10-15 16851 Orange Santa Ana River Bed at Anaheim Street crossing, Anaheim 60 Comment
  POM47583  Leptochloa fusca subsp. uninervia I. M. Johnston 1924-8-29 s.n. Orange 1 mile north of Santa Ana. Comment
  RSA703196  Leptochloa fusca subsp. uninervia R. E. Riefner Jr. 2004-8-8 4 -373 Orange City of Anaheim, Santa Ana River bottom, E of 57 Freeway between Orangewood Street and Chapman Avenue. 41 Comment
  UCSB48232  Leptochloa fusca subsp. uninervia Roberts, Fred 1981-5-2 Orange Mission Viejo; Camino Capistrano, 1.5 km N Crown Valley Parkway 49 Comment
  CDA32435  Leptochloa uninervia D. G. Kelch 2006-12-9 6 .552 Orange Irvine. University Dr along tidal creek just E of I-73. Comment
  UCR154263  Leptochloa uninervia Mark A. Elvin 2004-5-2 3420 Orange Southern Coastal, Irvine: San Joaquin Freshwater Marsh, near Campus and University Drives; 1.7 km (air) NNW UC Irvine campus center 3 Comment
  RSA696979  Leptodactylon californicum Keith E. Hoffmaster 1927-4-8 s.n. Orange Santa Ana Mountains Comment
  UCR133165  Leptodactylon californicum Adrian Wolf 2000-3-24 458 Orange Santa Ana Mtns., North Ranch Policy Plan Area, Lake View Road 518 Comment
  VVC381  Leptodactylon californicum P. J. MacKay 1990-5-25 xn Orange Peninsular Range, Hwy 74 near San Juan Hot Springs 198 Comment
  UC527219  Leptodactylon californicum subsp. glandulosum B. D. Stark 1931-3-12 1938 Orange w slope Santa Ana Mts. (3 mi n of Modjeska's Home); w slope of Santa Ana Mts. 304 Comment
  RSA0030890  Leptodactylon californicum subsp. leptotrichomum B. D. Stark 1931-3-12 s.n. Orange West slope of Santa Ana Mts., 3 mi. no. of Modjeska's Home. 304 Comment
  RSA17141  Leptosiphon floribundus C. B. Wolf 1936-6-17 7951 Orange Long Ortega Highway San Juan Canyon, 5/10 mi. e. of Orange Co. Line Riverside 366 Comment
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Aug 10 2014
  POM364667  Leptosiphon floribundus Albert J. Perkins 1920-5-18 s.n. Orange Frabuco Canon Comment
  RSA588780  Leptosiphon floribundus Fred M. Roberts, Nicole Orlik 1990-4-11 4557 Orange Santa Ana Mountains: East Fork Upper Long Canyon, along Main Divide Truck Trail, 4.4 kilometers SE Los Pinos Peak. 750 Comment
  RSA576  Leptosiphon liniflorus J. T. Howell 1927-6-8 58 Orange Botany Garden, Rancho Santa Ana. [original location] 152 Comment
  RSA715700  Leptosiphon liniflorus Fred M. Roberts, Robert L. Allen 2005-10-15 6311 Orange entrance to Falcon Group Camp, 2.1km ESE Los Pinos Peak and 0.3km NE campground. 1008 Comment
  SD28081  Leptosiphon liniflorus Carl B. Wolf 1932-5-19 3637 Orange Rancho Santa Ana Botanic Garden, west of the tennis court. 198 Comment
  UCR197699  Lessingia filaginifolia A. C. Sanders, Fred M. Roberts 2008-9-18 36085 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge 330 Comment
  RSA699155  Leymus condensatus Jeanne Parton 1934-5-18 s.n. Orange Lemon-Heights Comment
  RSA747630  Leymus condensatus Fred M. Roberts 2008-5-8 6945 Orange Dana Point: Dana Point Headlands, CNLM Preserve, near Strands Road Gate, 0.8km WNW Marine Institute, Dana Point Harbor. 65 Comment
  UCSB48192  Lilium humboldtii Roberts, Fred 1981-6-26 Orange Santa Ana Mtns 329 Comment
  CDA1076  Limonium binervosum D. G. Kelch 2006-12-9 6 .547 Orange Along Newport Back Bay Dr. in side canyon. Comment
  CDA23090  Limonium binervosum Mark A. Elvin, D. G. Kelch 2006-12-9 5307 Orange Southern Coastal; Newport Backbay; Big Canyon, lower end. Comment
  RSA0056339  Limonium californicum James R. Shevock 1972-9-27 2284 Orange Newport back bay. 3 Comment
  POM47641  Limonium californicum var. mexicanum I. M. Johnston 1924-8-29 s.n. Orange 2.5 miles north of Balboa. Comment
  RSA723545  Limonium ramosissimum R. E. Riefner 2005-10-5 5 -708 Orange City of Irvine, Bonita Creek, along La Salud St. near Milano Dr. 9 Comment
  CAS-BOT-BC226770  Linanthus californicus Munz; Street; Williams 1919-5-3 2629 Orange Santa Ana River Canon [Canyon] Comment
  UCSB47635  Linanthus californicus Roberts, Fred 1980-5-3 Orange Main Divide Truck Trail, on north side of road, 0.3km SE Trabuco Peak, Santa Ana Mtns. 1340 Comment
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Jan 23 2015
  RSA468460  Linanthus californicus subsp. glandulosus Claire Kibbe 1936-07 19983 Orange Santa Ana Canyon. Comment
  JEPS89271  Linanthus dianthiflorus Rimo Bacigalupi and L. Heckard, P. C. Hutchison 1962-3-16 8233 Orange 2 mi n Doheny Beach State Park (fields above ocean) Comment
  RSA773510  Linanthus dianthiflorus Fred M. Roberts 1999-4-26 5198 Orange Lomas de Santiago: Lomas Ridge, tributary to Santiago Canyon Wash on ridge between Limestone Canyon and the wash, 1.4 km SE Silverado School, and 2.7 km N Bolero Lookout. 358 Comment
  UCR5212  Linanthus dianthiflorus Barbara T. Gittins, O. F. Clarke 1966-3-19 894 Orange Pacific slope, Irvine Ranch, east of University of California Irvine campus, Newport Beach 91 Comment
  UCSB48049  Linanthus dianthiflorus Fritzke, Sue; Roberts, Fred 1982-4-3 Orange Dana Point: hills, 1.0 km N Dana Hills High School; 1.9 km W Marco Forster Junior High School 30 Comment
  UC729649  Linanthus floribundus subsp. glaber E. R. Johnson May 1932 Orange between Skyline Drive and Santiago Peak; Santa Ana Mts. 1219 Comment
  UCR177690  Linanthus liniflorus Fred M. Roberts, D. E. Bramlet 2003-5-1 5693 Orange Coastal Plains & Basins; South Coastal Plain region, Rancho Mission Viejo: Donna O'Neill Land Conservancy, Cristianitos Cyn., 0.56 km SSW Gato Gate and 0.21 km west of Cristianitos Rd. 96 Comment
  UCR266676  Linanthus liniflorus D. E. Bramlet 2008-5-20 4278 Orange Peninsular Range; Santa Ana Mtns. Foothills, northern Loma Ridge, 305 m west of Hwy 241, 975 m south of Santiago Canyon Rd., 61 m north of access road 355 Comment
  UC564024  Linanthus parviflorus L. R. Abrams 1935-4-7 13681 Orange San Juan Hot Springs Mouth of San Juan Canyon Comment
  RSA782058  Lobularia maritima Mark A. Elvin 2003-2-23 2313 Orange Irvine, San Joaquin Marsh along the berm of San Diego Creek 3 Comment
  UCR217465  Lobularia maritima Mark A. Elvin 2003-2-23 2313 Orange South Coast, Irvine, San Joaquin Marsh along the berm of San Diego Creek 3 Comment
  RSA662131  Lobularia maritima Daniel Curran 1981-1-23 5 Orange 2733 Boadway, Anaheim. Comment
  CAS-BOT-BC283494  Lolium multiflorum Carl B. Wolf 1932-7-7 3858 Orange Bryant Ranch, Bryant Ave, at pump house, 0.5 mile E of Los Alamitos Blvd Comment
  CAS-BOT-BC269106  Lolium perenne Ira L. Wiggins 1965-10-24 20290 Orange At corner of Yorba Linda and State College Boulevards, Fullerton Comment
  CAS-BOT-BC269107  Lolium perenne Carl B. Wolf 1932-6-13 3714 Orange Fullerton, Rose Drive 53 Comment
  UCR131729  Lolium perenne C. B. Wolf 1932-7-7 03858 Orange South Coast, Bryant Ranch, Bryant Ave, at pump house 0.5 mi. east of Los Alamitos Blvd. 6 Comment
  UCR170137  Lolium perenne subsp. multiflorum Jeffrey Ross, R. Zaka 1998-5-2 47 Orange South Coast, North side of San Joaquin Hills; William R. Mason Regional Park, near intersection of Yale Avenue and University Drive 27 Comment
  RSA6130  Lolium perenne subsp. multiflorum C. B. Wolf 1932-6-13 3728 Orange Storm drain at Malvern and Nicholas Aves; Fullerton. 53 Comment
  RSA734678  Lolium perenne subsp. perenne A. C. Sanders, T. B. Salvato 2008-5-13 35332 Orange Lomas de Santiago, Santiago Canyon at mouth of Hangman Tree Canyon and lower Hangman Tree Cyn, c. 1/2 mile below Modjeska Canyon confluence 366 Comment
  UCR193390  Lolium perenne subsp. perenne A. C. Sanders, T. B. Salvato 2008-5-13 35332 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Canyon at mouth of Hangman Tree Canyon and lower Hangman Tree Cyn, c. 1/2 mile below Modjeska Canyon confluence 366 Comment
  UCR193796  Lolium perenne subsp. perenne A. C. Sanders, Fred M. Roberts 2008-7-3 35707 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along Weir Canyon Rd. 1.2 mi. SSE of Walnut Canyon Reservoir, below Upper Blind Canyon Rd. 212 Comment
  UC537108  Lolium temulentum Lawrence M. Booth 1932-5-19 1078 Orange Newport Bay Comment
  RSA0011619  Lolium temulentum Jeanne Paxton 1934-4-12 s.n. Orange Marshes back of Santa Ana Country Club. Comment
  UCR130488  Lomatium utriculatum R. E. Riefner Jr. 2000-4-27 00- 392 Orange Santa Ana Mountains, North Ranch Policy Plan Area, along dirt road running south from Baker Canyon Road to Silverado Road 335 Comment
  SEINET12118936  Lomatium utriculatum J. F. Bright, Wyman, C. 1933-1 8100 Orange in Santa Ana foothills Comment
  IRVC325  Lonicera japonica B. Aldis 1965-4-25 Orange Slater Ave. Huntington Beach Comment
  SD140137  Lonicera subspicata B. Pitzer, S. Hemstreet 1992-5-21 1940 Orange Cleveland National Forest; State Highway 74, 1.0 mile yuphill from the 2000 foot marker, and left ca. 0.1 mile on an old paved road. 760 Comment
  POM18126  Lonicera subspicata var. denudata P. A. Munz 1923-9-7 7738 Orange Santiago Peak, Santa Ana Mountains 1677 Comment
  POM50583  Lonicera subspicata var. denudata Helen D. Geis 1900-1 518 Orange Hills back of Santa Ana. Comment
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Aug 8 2010
  RSA697992  Lotus Pomeroy 1929-4-27 s.n. Orange Trabuco. Comment
  UCR191246  Lotus hamatus A. C. Sanders 2008-4-29 35132 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, western end of Loma Ridge on road to sheriff's training facility, c. 1.5 mi. SW of Santiago Reservoir 335 Comment
  UCR173936  Lotus heermannii A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33005 Orange Peninsular Range; Santa Ana Mtns., San Juan Canyon, from Lower San Juan Picnic Area to c. 1 mile downstream, parallel to Hwy 74 and near Riverside Co. line 396 Comment
  UCR193022  Lotus heermannii A. C. Sanders, Mitch Provance 2008-5-20 35418 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago area, Santiago Creek Canyon, c. 3/4 mile below Modjeska Canyon confluence 355 Comment
  RSA0036647  Lotus heermannii Robt. Allen, Richard Newell 2009-7-11 s.n. Orange Peninsular Ranges; Santa Ana Mountains regions: Upper Santiago Canyon, just past community of Modjeska Canyon, Fleming Ranch, East end of Modjeska Canyon Road. 621 Comment
  UCR193377  Lotus purshianus A. C. Sanders, Mitch Provance 2008-5-20 35394 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, mouth of Hangman Tree Canyon just above confluence with Santiago Creek Canyon, c. 1/2 mile below Modjeska Canyon confluence 366 Comment
  RSA681848  Lotus salsuginosus Scott D. White, Michael Honer 2003-6-12 9541 Orange Southwestern Santa Ana Mtn. Foothills: Rancho Mission Viejo. Upper end of Trampas Canyon. 152 Comment
  RSA697975  Lotus salsuginosus Olive Van Meter s.n. Orange Black Star Canyon. Comment
  POM183955  Lotus scoparius P. A. Munz 1932-3-29 12187 Orange Costa Mesa Comment
  POM276672  Lotus scoparius Lyman Benson 1932-3-26 3200 Orange Dana Point. 60 Comment
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Apr 29 2008
  RSA678492  Lotus scoparius Fred M. Roberts, Robert L. Allen, Carol Roberts 2003-5-11 5851 Orange Dana Point Headlands: 0.8km SSW Richard Henry Dana School north of Marguerita Drive 76 Comment
  UC1129145  Lotus scoparius A. Lewis 1934-3-1 346 Orange San Juan Hills Corona Quad. 396 Comment
  UC537008  Lotus scoparius Lawrence M. Booth 1932-5-12 1025 Orange Newport Bay Comment
  UCR131881  Lotus scoparius J. Mallory, V. McCoy 1995-7-3 6454- 124 Orange Santa Ana Mountains: Blind Canyon, c. 0.5 mi. NE of confluence w/ Santiago Canyon Wash; north of Irvine Lake. 300 Comment
  RSA0013908  Lotus scoparius var. scoparius Fred M. Roberts 2012-4-24 7525 Orange San Joaquin Hills: Buck Gully, tributary canyon below San Joaquin Hills Road and 2.0 km W Signal Peak 167 Comment
  RSA748819  Lotus scoparius var. scoparius G. Gust, L. Nye 2005-3-12 564 Orange Cleveland National Forest, on Hwy 74 ca. 0.5 m W of county boundary with Riverside at a pullout. 401 Comment
  UCR154288  Lotus scoparius var. scoparius Mark A. Elvin 2004-5-2 3406 Orange Southern Coastal, Irvine: San Joaquin Freshwater Marsh, near Campus and University Drives; 1.7 km (air) NNW UC Irvine campus center 3 Comment
  UCR193542  Lotus scoparius var. scoparius A. C. Sanders, Fred M. Roberts 2008-7-3 35668 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor 415 Comment
  UC867303  Lotus strigosus I. W. Clokey 1932-3-1 5328 Orange Laguna Beach Comment
  UCR281557  Lotus strigosus Mitch Provance, Jeremiah George 2017-3-20 317- 114 Orange West Coyote Hills, Fullerton, vicinity of Utility Access Roads E of Gilbert Street and N of Castlewood Dr., on land previously occupied by oil fields. 137 Comment
  POM9282  Lotus strigosus P. A. Munz, R. D. Harwood 1920-4-24 3770 Orange Sierra [Freemont] Canyon 366 Comment
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Sep 17 2011
  RSA588706  Lotus strigosus Fred M. Roberts, Carol A. Roberts 1990-5-23 4644 Orange Santa Ana Mtns: West Fork, Upper Long Canyon, near Main Divide Truck Trail, 4.5 km SE Los Pinos Peak. 756 Comment
  SEINET6932555  Lotus strigosus Wanda P. Vestal, A. G. Vestal 1955-3-24 s.n. Orange Trabuco Canyon, about 5 miles east of El Toro. Comment
  IRVC20398  Lotus strigosus var. strigosus Fred M. Roberts 1983-3-27 947 Orange Dana Point headlands: just south of Dana Strand Rd., 0.5km W Dana Point Harbor; 0.8km SSW Richard Henry Dana School, southern coastal 80 Comment
  IRVC22008  Lotus strigosus var. strigosus Fred M. Roberts, Gordon Marsh 1985-3-12 1502 Orange mesa west of Ave. Pico and north of El Camino Real, 3.2km SSE Coyote Bluff; 0.6km E Bench Mark 16 (sect. 32), San Clemente 37 Comment
  IRVC17284  Lotus strigosus var. strigosus Karlin G. Marsh 1980-5-5 Orange Rancho Mission Viejo: Planning area; along road way. Southern Coastal Comment
  RSA697981  Lotus subpinnatus Unspecified s.n. Orange Orange County park Comment
  RSA406437  Lotus unifoliolatus M. B. Dunkle 1938-6-23 5382 Orange San Juan Canyon. Comment
  UC864299  Lotus wrangelianus I. M. Johnston 1918-5-4 1932 Orange Laguna Beach 6 Comment
  RSA717042  Ludwigia peploides Fred M. Roberts, Chris M. Barnhill 2005-9-27 6285 Orange San Juan Capistrano: San Juan Creek wash, east of La Novia Road bridge, 1.4km E Mission San Juan Capistrano. 27 Comment
  UCR179763  Ludwigia repens R. E. Riefner Jr. 2006-10-8 06- 483 Orange South Coast, Irvine, San Diego Creek near 405 Freeway, between 405 and Laguna Road 51 Comment
  UCR176751  Lupinus Robert Noll 1998-5-14 s.n. Orange Santa Ana Mtns., Santiago Canyon, due south of Irvine Lake on grassy slopes on a NE exposure 305 Comment
  RSA699291  Lupinus bicolor Minor Warne 1934-03 s.n. Orange Laguna Canyon Comment
  UCR101530  Lupinus bicolor B. G. Pitzer 1997-4-15 3147 Orange San Joaquin Hills, Crystal Cove State Park, north of the N end of the City of Laguna Beach. Along Moro Canyon Trail, from beginning to a point c. 1.75 mi. up the canyon. 49 Comment
  IRVC15184  Lupinus bicolor subsp. umbellatus Gordon A. Marsh, K. Conrey 1975-4-14 s.n. Orange Lomas de Santiago: Lomas Ridge, 1/4mi NNW Rattlesnake Canyon Reservoir Dam Southern Coastal Comment
  RSA788819  Lupinus excubitus Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49802 Orange Santa Ana Mountains: Trabuco Canyon Comment
  RSA2098  Lupinus excubitus var. hallii B. D. Stark 1931-4-18 1939 Orange Mouth of Gypsum Canyon, Santa Ana Mts, Santa Ana Canyon opposite the Botanic Garden. 152 Comment
  RSA28730  Lupinus excubitus var. hallii R. S. Woglum 1938-5-8 1619 Orange Ortega Hwy, Santa Ana Mts Comment
  RSA503878  Lupinus excubitus var. hallii N. C. Cooper 1949-5-1 3942 Orange San Juan Canyon 610 Comment
  RSA0027775  Lupinus excubitus var. hallii Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49692 Orange Northern Santa Ana Mountains: Sierra Peak 900 Comment
  RSA91198  Lupinus excubitus var. hallii F. W. Peirson 1925-4-10 5740 Orange In Silverado Canyon. 610 Comment
  UCR240077  Lupinus latifolius Dick Newell, Don Millar 2012-5-22 255 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Hangmans Tree Rd. at Santiago Creek 350 Comment
  RSA413752  Lupinus latifolius subsp. parishii N. C. Cooper 1949-5-1 3949 Orange San Juan Canyon 610 Comment
  RSA4866  Lupinus longifolius E. R. Johnson 1932-4-15 2957 Orange Rancho Santa Ana, 1mile NWof Roundtop (section 16) 457 Comment
  UCR223983  Lupinus sparsiflorus Dick Newell, Don Millar 2011-3-1 072 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Hicks Canyon Haul Road, above Jeffrey Rd. and below Hwy 241 crossing 175 Comment
  UCSB47590  Lupinus sparsiflorus Roberts, Jr., Fred 1980-5-3 Orange Santa Ana Mtns., San Juan Canyon, Rte. 74, 0.6 km. E San Juan Guard Station 238 Comment
  RSA722339  Lupinus sparsiflorus R. H. McArthur 1934-3-25 s.n. Orange Field W. of Irvine Park. Comment
  RSA542385  Lupinus sparsiflorus subsp. sparsiflorus Fred M. Roberts 1988-3-15 3871 Orange Rancho Mission Viejo: Central Gabio Canyon, 7.0 km E Playa Survey Marker. 162 Comment
  IRVC2355  Lupinus succulentus Janet Morgan 1965-3-3 s.n. Orange Laguna Canyon. Southern Coastal Comment
  RSA507484  Lupinus succulentus Jeri Hirshberg 1988-6-7 s.n. Orange Santa Ana Mountains, head of Gypsum Canyon 412 Comment
  RSA788818  Lupinus truncatus Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49803 Orange Santa Ana Mountains: Trabuco Canyon Comment
  IRVC19963  Lupinus truncatus Gordon A. Marsh, Karlin G. Marsh 1983-4-14 s.n. Orange Laguna Canyon: Sycamore Hills, N sector, road edge Southern Coastal 146 Comment
  CAS-BOT-BC383071  Lycium brevipes R. E. Riefner, Jr. 2012-1-16 12 -7 Orange City of Newport Beach, Corona del Mar, Buck Gully, near LIttle Corona Beach, slope adjacent to restroom facility, vicinity of Poppy Ave. and Ocean Blvd. 15 Comment
  UCR251748  Lycium brevipes var. hassei R. E. Riefner Jr. 2006-3-19 06- 58 Orange South Coast, City of San Clemente, San Clemente State Beach, SSW c. 100 m from the intersection of Ave. Calafia and South Ola Vista Rd. 40 Comment
  CAS-BOT-BC233471  Lycium californicum Albert N. Steward 1958-3-20 7396 Orange East of Daylight Pass, Death Valley National Monument 1219 Comment
  RSA3177  Lycium californicum Carl B. Wolf 1932-3-8 2686 Orange 1/2 mile N of Corona del Mar, Newport Bay. 8 Comment
  RSA5270  Lycium californicum B. D. Stark 1932-12-9 4424 Orange Canyon 1 mile NW of Laguna Beach Comment
  UC303755  Lycium californicum I. M. Johnston 1918-5-5 1949 Orange Laguna Beach Comment
  UCR240186  Lycium californicum R. E. Riefner Jr. 2012-11-24 12- 558 Orange South Coast, city of San Clemente, Presidio Ave. c. 0.2 mi south of Ave. Pico 34 Comment
  RSA0071939  Lycium californicum CNPS Accuracy Assessment Team 2014-7-22 6468 .1 Orange Crystal Cove State Park. Comment
  RSA700255  Lycopersicon esculentum Fred M. Roberts 2003-7-8 5959 Orange Coastal Plains and Basins; Los Angeles Basin region; Orange Park Acres, along Santiago Creek, 0.5 km E Cannon Road and 0.3 km n Santiago Canyon Road. 117 Comment
  RSA0014852  Lythrum californicum L. M. Booth 1932-6-4 1147 Orange Newport Lagoon. Comment
  UCSB25001  Lythrum hyssopifolia Booth, L. 1932-7-19 Orange Bolsas Creek Comment
  RSA918  Madia gracilis J. T. Howell 1927-6-26 232 Orange Claymine Canon near Sierra Peak. [canyon] 244 Comment
  RSA3155  Malacothamnus fasciculatus Carl B. Wolf 1931-7-25 2294 Orange along road at north side of pear orchard, Rancho Santa Ana, Santa Ana Canyon 122 Comment
  RSA433313  Malacothamnus fasciculatus F. R. Fosberg 1931-6-21 S- 5101 Orange Silverado Canyon, Santa Ana Mts. Comment
  RSA433315  Malacothamnus fasciculatus F. R. Fosberg 1931-6-21 S- 5096 Orange Lower Santiago Canyon. Comment
  RSA433316  Malacothamnus fasciculatus Albert J. Perkins 1923-6-28 s.n. Orange Laguna Cliffs Comment
  UCR103710  Malacothamnus fasciculatus B. G. Pitzer, T. Tennant 1997-11-8 3364 Orange San Joaquin Hills, Crystal Cove State Park, along Moro Canyon Trail, from beginning to a point c. 1.75 mi. up the canyon. 85 Comment
  RSA714449  Malacothrix saxatilis var. saxatilis R. E. Riefner 1999-5-22 99 -289 Orange City of Dana Point, beach west of Pacific Coast Hwy. South of Salt Creek near Ritz Carlton Hotel. 15 Comment
  POM201784  Malacothrix saxatilis var. tenuifolia L. M. Booth 1932-7-27 1319 Orange Corona del Mar, Newport Bay. Comment
  UC68974  Malacothrix saxatilis var. tenuifolia H. M. Hall July, 1905 6728 Orange Santa Ana Canyon 121 Comment
  IRVC841  Malacothrix saxatilis var. tenuifolia D. Frees 1965-3-27 Orange Newport Beach; East Bluffs. Southern Coastal Comment
  RSA721106  Malacothrix saxatilis var. tenuifolia R. H. McArthur 1934-4-28 s.n. Orange Roadside W. of Santiago Dam. Comment
  RSA12784  Malosma laurina Percy C. Everett 1934-10-4 6209 Orange N side of Irrigation Canal, opp. Orange Co. Plant Sanctuary, Rancho Santa Ana. 122 Comment
  UCR228797  Malosma laurina Dick Newell, Don Millar 2011-5-3 138 Orange Coastal Plains, San Joaquin Hills, Laguna Canyon Wilderness Park, Willow Trail 160 Comment
  SEINET10870270  Malosma laurina Charlene A. Bennett 1976-7-21 Bennett 435 Orange Cultivated plants collected in and around the condominium-Pacific Island Estates in Laguna Hills; some native shrubs, etc. 152 Comment
  UC1929557  Malva nicaeensis Scott D. White, Justin Wood 2008-4-22 11907 Orange Chino Hills: Telegraph Canyon Road, E of Carbon Canyon Regional Park. Comment
  RSA17130  Malva pseudolavatera Carl B. Wolf 1936-5-1 7782 Orange Rancho Santa Ana, Santa Ana Canyon, along irrigation canal werst of ranch buildings 130 Comment
  UCSB52905  Malva pseudolavatera Roberts, Fred 1985-4-24 Orange San Joaquin Hills: Laguna Canyon along Laguna Canyon Rd., 0.6km N jct, El Toro Rd,; UTM 3716450mN, 429300mE 22 Comment
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Feb 22 2019
  RSA678727  Malvaviscus arboreus Fred M. Roberts, Leo Song 2002-8-1 562 Orange San Joaquin Hills: Laguna Beach, South flank Temple hill, between Nyes Place and Balboa Ave.; 0.9 km ENE Sugarloaf pt. 183 Comment
  POM202030  Malvella leprosa L. M. Booth 1932-7-21 1296 Orange Anaheim Creek Comment
  UC537168  Malvella leprosa Lawrence M. Booth 1932-6-9 1174 Orange 1/2 mi. from ocean Santa Ana R. Comment
  UC729853  Malvella leprosa Carl B. Wolf 1932-7-7 3855 Orange Bryant Ave., 0.1 mi. e. of Los Alamitos Blvd., 0.1 mi. e. of n.w. corner of SE 160 of Sect. 30 Bryant Ranch Comment
  UCR19528  Malvella leprosa Albert J. Perkins 1912-8-6 s.n. Orange Anaheim Comment
  RSA212422  Marah macrocarpa C. B. Wolf 1931-2-9 1829 Orange Santa Ana Canyon between Horseshoe Bend and Esperanza, over whire fence along RR. 137 Comment
  SD143935  Marah macrocarpa Scott D. White 1996-12-20 4633 Orange Santa Ana Mtns above Modjeska Canyon. Proposed water tank site. 424 Comment
  RSA652419  Marah macrocarpa Harvey Kennedy 1949-2-20 s.n. Orange Newport Beach, back bay. 9 Comment
  RSA184100  Marrubium vulgare I. L. Wiggins 1965-11-6 20347 Orange Near well #14, Kramer Oil Estates, near end of county road to Rancho Santa Ana. Comment
  RSA658205  Marrubium vulgare T. A. Daubert 1991-5-19 651 Orange Tucker Wildlife Sanctuary, Modjeska Canyon, turn around island. Comment
  UCD170385  Marsilea drummondii R. E. Riefner Jr. 2008-6-22 08- 209 Orange City of Yorba Linda, Santa Ana Canyon, Santa Ana River, La Palma Ave. near Old Village Road. 95 Comment
  UCR232928  Marsilea drummondii R. E. Riefner Jr. 2008-7-20 08- 243 Orange South Coast, city of Irvine, San Diego Creek at West Yale Loop Road Comment
  CAS-BOT-BC67807  Marsilea vestita Arthur Haupt 1935-4-12 s.n. Orange Costa Mesa Comment
  CAS-BOT-BC348162  Matricaria discoidea L. R. Abrams 1901-6-12 1772 Orange Laguna Comment
  UCR191468  Matricaria matricarioides A. C. Sanders, Fred M. Roberts 2008-4-8 34733 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, head of Hicks Canyon, S of Santiago Reservoir 351 Comment
  CAS-BOT-BC60300  Matthiola incana James R. Shevock 1974-2-26 3272 Orange Along California highway 1 (Pacific Coast Highway) at Bolsa Chica Beach. 3 Comment
  CAS-BOT-BC60301  Matthiola incana E. K. Balls 1955-4-4 20423 Orange West end of Newport Beach. 3 Comment
  SD168148  Medicago lupulina R. L. Allen 1983-4-13 A 638 Orange Santa Ana,. 3030 Camille at Arapaho Comment
  IRVC2371  Medicago polymorpha D. Van Gorden 1965-5-2 s.n. Orange Anaheim and Meyer Field. Costa Mesa Comment
  IRVC2372  Medicago polymorpha Robin Hobson 1965-4-10 s.n. Orange Santa Ana Heights; 2431 Mesa Dr. Southern Coastal Comment
  POM348035  Medicago polymorpha E. S. Spalding 1923-1-1 s.n. Orange Laguna Beach. Comment
  POM348036  Medicago polymorpha Albert J. Perkins 1912-10-15 s.n. Orange Peatlands near head Newport Bay. Comment
  RSA746481  Medicago rigidula R. E. Riefner Jr. 2008-5-22 08 -120 Orange Unincorporated land between the Cities of Lake Forest nd Rancho Santa Margarita, El Toro Rd., near Meadow Ridge Dr. 362 Comment
  RSA746475  Medicago truncatula R. E. Riefner Jr. 2008-5-19 08 -92 Orange City of San Juan Capistrano, general vicinity of Antonio Pkwy. at Hwy 74 (Ortega Hwy). 88 Comment
  CAS-BOT-BC227847  Melaleuca nesophila R. E. Riefner, Jr. 2011-7-1 11 -82 Orange City of Newport Beach, beach area west of the end of Cameo Shores Road; south ca. 1 mi from Poppy Avenue 1 Comment
  RSA262075  Melica imperfecta E. W. Lathrop 1966-4-18 6171 Orange 4 mi NE of Lake Irvine, Black Star Canyon, Cleveland National Forest, Trabuco District. Comment
  RSA681950  Melica imperfecta Fred M. Roberts, David E. Bramlet 2003-3-13 5579 Orange Donna O'Neill Land Conservancy: Ridge west of Christianitos Canyon, 1.6 km NW Sycamore Gate., (33 deg 29'37N, 117 deg 34' 16 W [UTM: 11S-04 46 936mE, 37 05 965mN.] 207 Comment
  RSA699156  Melica imperfecta Rankin s.n. Orange Silverado Comment
  RSA751312  Melica imperfecta A. C. Sanders, Fred M. Roberts 2008-5-6 35265 Orange Lomas de Santiago, slope SE of road junction along ridge road, near head of Agua Chinon Canyon, 2.4 miles north of El Toro 470 Comment
  UCR192224  Melica imperfecta A. C. Sanders, Fred M. Roberts 2008-5-6 35265 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, slope SE of road junction along ridge road, near head of Agua Chinon Canyon, 2.4 miles north of El Toro 470 Comment
  UCR205982  Melica imperfecta Erynn Maynard 2007-8-2 s.n. Orange Peninsular Range; Santa Ana Mtns., Starr Ranch Sanctuary, 100 Bell Canyon Rd., city of Trabuco Canyon 488 Comment
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Sep 5 2010
  RSA0071936  Melica imperfecta CNPS Accuracy Assessment Team 2014-4-27 4617 Orange Weir Canyon. Comment
  HSC14999  Melilotus albus S. M. Clapp 1966-4-10 42 Orange Just S of Brea Canyon Rd., 1 mi. N of Brea Union Oil Property 61 Comment
  IRVC2397  Melilotus albus Anonymous 1965-3-14 s.n. Orange Dana Point. Southern Coastal Comment
  RSA701691  Melilotus albus Fred M. Roberts, David Bramlet 2003-6-6 5896 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, west slopes of Cristianitos Canyon, 0.86 km SSW Gato Gate and 0.39 km W of Cristianitos Road. Comment
  RSA184169  Melilotus albus I. L. Wiggins 1966-5-3 20509 Orange Hwy S18 about 4.5 miles E of Laguna Beach Comment
  IRVC20806  Melilotus indicus Fred M. Roberts 1982-5-22 644 Orange Dana Point; Junction of Selva and Stone Hill drives, 1.0km ESE Dana Hills High School; 1.7km SW Marco Forster Junior High School. Southern Coastal 40 Comment
  IRVC22205  Melilotus indicus Fred M. Roberts, G. A. Marsh 1985-4-3 1620 Orange Irvine; Irvine Ranch, 1.2km W UCI campus center. Southern Coastal 22 Comment
  IRVC2407  Melilotus indicus D. Ibbetson 1965-4-12 s.n. Orange Newport Beach Southern Coastal Comment
  IRVC2424  Melilotus indicus Ed Hazen 1965-4-27 s.n. Orange Costa Mesa; Victoria St. and Victoria Place. Southern Coastal Comment
  JEPS65539  Melilotus indicus Alice King April, 1908 Orange Santa Ana Comment
  RSA735029  Melilotus indicus Scott D. White, Justin M. Wood 2008-4-10 11849 Orange Chino Hills: Powerline access road just N of CHSP boundary and just W of Orange/SB co. line. Approx. 1 mi. NW of Gilman Peak. 366 Comment
  UCR192468  Melilotus indicus A. C. Sanders, Fred M. Roberts 2008-3-25 34536 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  RSA791739  Melinis repens R. E. Riefner Jr. 2011-8-16 36100 Orange Newport Beach, Orange County Parks and Recreation lands, along Newport Coast Drive, between Vista Ridge Rd. & Alteza Rd. 281 Comment
  SD239535  Melinis repens R. E. Riefner Jr. 2011-8-16 11 98 Orange Newport Beach, Orange County Parks & Recreation lands, along Newport Coast Drive, between Vista Ridge road and Alteza Road. 281 Comment
  RSA773549  Mentzelia dispersa Fred M. Roberts, Robert Allen, Pat Brennon 2008-6-9 7035 Orange Santa Ana Mts.: Modjeska Peak, north slope, 0.2 km NNE summit 1632 Comment
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Mar 23 2020
  SD236328  Mentzelia micrantha A. C. Sanders, Fred M. Roberts, Amber ONeal 2008-5-9 35313 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, along fire line/bulldozer cut, c. 1.5 mi. east of Walnut Cyn Reservoir 345 Comment
  POM49182  Mentzelia veatchiana L. R. Abrams 1901-6-15 1880 Orange Santiago Peak trail. Comment
  IRVC27725  Mesembryanthemum crystallinum Mark A. Elvin 2004-5-2 3429 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7km (air) NNW UC Irvine campus center. Southern Coastal 3 Comment
  UC1241129  Mesembryanthemum crystallinum Peter H. Raven 1957-9-28 11400 Orange Laguna Beach Comment
  UCD96994  Mesembryanthemum crystallinum J. C. Roos 1965-6-16 s.n. Orange Dana Point. Comment
  CAS-BOT-BC435234  Mesembryanthemum crystallinum Carl B. Wolf 1932-6-28 3791 Orange Bryant Ranch near fence 100 ft. south of north west corner of the N.W.40 of S.E.160 of Sec. 27. T4S R11W. Comment
  CAS-BOT-BC435276  Mesembryanthemum nodiflorum Carl B. Wolf 1927-7-23 663 Orange Juste no. of San Clemente Comment
  CAS-BOT-BC435277  Mesembryanthemum nodiflorum LeRoy Abrams 1903-4-20 3280 Orange Near San Juan Comment
  JEPS57261  Mesembryanthemum nodiflorum L. R. Heckard and R. C. Bacigalupi 1968-5-8 1835 Orange at s end of the town of Dana Point Comment
  UCR100444  Mesembryanthemum nodiflorum B. G. Pitzer 1996-4-30 2775 Orange South Coast, Upper Newport Bay, Calif. Dept. Fish & Game Ecological Reserve, off (W of) Jamboree Road 6 Comment
  RSA543973  Micropus californicus Steve Boyd, Orlando Mistretta 1991-5-9 6203 Orange Crest of range at Oak Flat, SE of Sierra Peak, just West of Riverside County Line. 793 Comment
  RSA588793  Micropus californicus Fred M. Roberts 1990-4-18 4567 Orange Rancho Mission Viejo: Chiquita Ridge, just west of Canada Chiquita, 2.5km SSE Median Rancho Survey Marker. 91 Comment
  RSA663211  Micropus californicus var. californicus R. E. Riefner 2000-4-27 20 -387 Orange NCCP North Ranch Policy Plan Area. Along dirt road running S from Baker Cyn. Road to Silverado Road. 335 Comment
  IRVC20789  Microseris douglasii subsp. douglasii Fred M. Roberts, S. L. Fritzke 1982-4-3 472 Orange Dana Point: hills .0 km N Dana Hills HS, 1.9 km W Marco Forester Jr HS. Southern Coastal 100 Comment
  RSA625807  Microseris douglasii subsp. platycarpha Scott D. White, Noel Davis 1998-4-24 6345 Orange Mission Viejo Area: Aliso Creek watershed, E of El Toro Rd. just N of jct. w/ Valley Vista Wy. Large proposed subdivision called Saddleback Meadow. 305 Comment
  RSA642507  Microseris douglasii subsp. platycarpha D. E. Bramlet 1998-4-23 2608 Orange Chino Hills. Within the old Edison spur road, 20m east of the 500Kv towers. The site is 1.98km south of Telegraph Cyn. and 823m north of Blue Mud Cyn. 412 Comment
  UCR104615  Microseris douglasii subsp. platycarpha D. E. Bramlet 1995-4-29 2403 Orange Fairview Park, Costa Mesa. 366m north of intersection of Wilson and Canyon drive and 152 m west of the Canyon School 43 Comment
  UCR157699  Microseris douglasii subsp. platycarpha Adrian Wolf 1998-5-15 289 Orange South Coast, Dana Point Headlands, north of Scenic Dr. 67 Comment
  RSA651500  Microseris douglasii subsp. platycarpha D. E. Bramlet 2000-4-12 2972 Orange Fremont Canyon. The site is 183m south of the existing access road on the north ridge of the canyon. The site is 1.37km northeast of Santiago Creek. 336 Comment
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Feb 21 2007
  RSA749306  Microseris lindleyi Fred M. Roberts 1999-4-21 5179 Orange Lomas de Santiago: Loma Ridge, ridges north of Dripping Springs Cyn., 1.5 km W Silverado Sch. and 4.8 km NNW Bolero Lookout. 365 Comment
  UC217850  Mimulus P. A. Munz, R. D. Harwood 1920-4-24 3758 Orange Sierra Canyon Santa Ana Mts. 365 Comment
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Sep 17 2011
  SEINET7067515  Mimulus aurantiacus A. G. Vestal 1947-6-12 s.n. Orange San Juan Canyon. Coordinate datum: NAD27. UTM Zone 11, 448887mE, 3712881mN. Comment
  UCR191245  Mimulus aurantiacus A. C. Sanders 2008-4-29 35134 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, western end of Loma Ridge on road to sheriff's training facility, c. 1.5 mi. SW of Santiago Reservoir 335 Comment
  SEINET10863345  Mimulus aurantiacus subsp. australis Melvin L. Conrad, David B. Dunn 1973-6-13 Conrad 7136 Orange In vicinity of laguna beach. Corolla orange. 152 Comment
  RSA0056606  Mimulus aurantiacus subsp. australis P. Shirokawa 1998-4-24 5 Orange Cleveland National Forest. Trabuco Ranger District, 2.35 miles from Ortega Highway (State Highway 74) on North Main Divide Road. 991 Comment
  RSA0058060  Mimulus aurantiacus subsp. australis Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49674 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. 457 Comment
  UCR192087  Mimulus aurantiacus var. aurantiacus A. C. Sanders, Fred M. Roberts, Amber O'Neal, D. E. Bramlet 2008-5-9 35300 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along old dirt road, c. 1.25 mi. ESE of Walnut Cyn Reservoir 340 Comment
  POM311165  Mimulus aurantiacus var. pubescens H. E. McMinn, M. Van Rensselaer 1945-6-9 1909 -D Orange North slope Laguna Canyon ca. 4 mi. east of Laguna Beach. Comment
  POM311166  Mimulus aurantiacus var. pubescens H. E. McMinn, M. Van Rensselaer 1945-6-9 1909 -E Orange North slope Laguna Canyon ca. 4 mi. east of Laguna Beach. Comment
  RSA131398  Mimulus aurantiacus var. pubescens E. K. Balls 1958-6-27 23279 Orange Road to Santiago Peak from Silverado Canyon, 3.8 mi. from gate. 976 Comment
  RSA448178  Mimulus aurantiacus var. pubescens M. B. Dunkle 1933-5-30 3564 Orange Carbon Canyon Comment
  RSA67767  Mimulus aurantiacus var. pubescens G. R. Campbell 1951-5-30 16080 Orange San Juan Canyon, Ortega Hwy, 4 mi. inside west border of Cleveland National Forest 152 Comment
  UCSB56675  Mimulus aurantiacus var. pubescens Roberts, Fred 1984-2-4 Orange Laguna Beach; South Laguna; Temple Hill; Upper Hobo Canyon; 1.2km NNE Goff Island; 2.4 km S Top of the World School 200 Comment
  RSA16344  Mimulus aurantiacus var. puniceus Percy C. Everett 1935-6-18 7189 Orange Santa Ana Mts., Main Divide Motorway to Santiago Pk., 1 mi. from Ortega Highway. 732 Comment
  RSA448179  Mimulus aurantiacus var. puniceus N. C. Cooper 1944-6-4 1341 Orange San Juan Canyon. 305 Comment
  RSA454329  Mimulus aurantiacus var. puniceus N. C. Cooper 1949-5-1 3946 Orange San Juan Canyon. 610 Comment
  RSA0054841  Mimulus brevipes Keith E. Hoffmaster 1934-4-8 150 Orange Santa Ana mts. Comment
  RSA749693  Mimulus cardinalis A. C. Sanders, Fred M. Roberts 2008-7-16 35832 Orange Lomas de Santiago, canyon c. 0.12 mi. below Dripping Spring, c. 7.5 mi. ESE of Tustin 360 Comment
  RSA131399  Mimulus clevelandii E. K. Balls 1958-6-27 23280 Orange 4.1 miles from Silverado (gate), Silverado Canyon, Santa Ana Mountains 1037 Comment
  RSA769077  Mimulus guttatus Minor Warne 1934-04 s.n. Orange Laguna Hills Comment
  UCSB47585  Mimulus palmeri Roberts, Fred 1980-5-3 Orange Main Divide Truck Trail; 1.9km WNW of Trabuco Peak; Santa Ana Mountains 1250 Comment
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Jun 22 2019
  IRVC28636  Mimulus pilosus Mark A. Elvin 2005-9-2 4491 Orange Santa Ana Mtns: along San Juan Creek, ca. 1.0km upstream from San Juan Hot Springs; off Ortega Hwy (74), near bridge. Peninsular Ranges 259 Comment
  RSA715695  Mimulus pilosus Fred M. Roberts, Chris M. Barnhill 2005-9-27 6277 Orange San Juan Capistrano: San Juan Creek wash, east of La Novia Road bridge, 1.4km E Mission San Juan Capistrano, 27 Comment
  RSA734914  Mimulus pilosus A. C. Sanders, Fred M. Roberts 2008-4-22 34992 Orange Lomas de Santiago, lower Hicks Canyon haul road, just above Irvine Ranch gate and road to cement plant, c. 1 mile NE of Rattlesnake Reservoir 213 Comment
  CLARK-A1528-4272  Mimulus puniceus John C. Roos 1965-6-16 Orange Dana Point Comment
  CDA41824  Mimulus puniceus Pope & Hill 1957-4-9 s.n. Orange Irvine Ranch. 0 Comment
  UCSB59358  Minuartia douglasii Roberts, Fred 1987-5-9 Orange Santa Ana Mtns.: San Juan Trail; above Chiquito Basin; 2.3 km. SSE Los Pinos Peak; UTM 372290mN, 457250mE 952 Comment
  SEINET11941951  Mirabilis californica J. F. Bright, Wyman, C. 1933-1 8105 Orange In Santa Ana Foothills Comment
  RSA698205  Mirabilis laevis Snow 1929-3-4 s.n. Orange West of Orange Co. Park. Comment
  RSA700926  Mirabilis laevis Keith E. Hoffmaster 1928-5-5 s.n. Orange San Onofre, other places Comment
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Nov 19 2013
  POM761  Mirabilis laevis var. crassifolia I. M. Johnston 1918-5-4 266 Orange hills back of Laguna Beach. 152 Comment
  RSA0073649  Mirabilis laevis var. crassifolia Fred M. Roberts 2010-3-12 7178 Orange Southeast Coast: Dana Point Headlands: Harbor Point Park, South of Green Lantern and west of Dana Point Harbor, c.a. 150 meters SE Interpretive Center. 50 Comment
  RSA585058  Mirabilis laevis var. crassifolia D. Atwood 1993-3-27 17707 Orange Corona Del Mar State Park along Newport Coast Drive. 0 Comment
  RSA683066  Mirabilis laevis var. crassifolia Fred M. Roberts 2003-3-19 5605 Orange Donna O Neill Land Conservancy: Ridges west of Cristianitos Cyn., 1,750m NNW Sycamore gate and 315m W Cristianitos Rd. (Canada Gobernadora) 192 Comment
  RSA0010773  Mollugo verticillata I. M. Johnston 1924-7-10 s.n. Orange Laguna Canyon. Comment
  CHSC35479  Monanthochloe littoralis Thomas Eakle 1971-5-28 164 Orange Ca. 2 mi. NE of Newport at Newport Bay saltmarsh. 0 Comment
  UC537286  Monanthochloe littoralis Lawrence M. Booth 1932-7-27 1318 Orange Newport Bay Comment
  CAS-BOT-BC219926  Monardella breweri subsp. lanceolata E. K. Balls 1958-6-27 23285 Orange 8 mi. se. from Silverado (Gate), Silverado Canyon, Santa Ana Mts. 1249 Comment
  RSA0005454  Monardella hypoleuca P. A. Munz 1923-9-7 7742 Orange Trail Trabuco Canyon to Santago Peak 915 Comment
  UCR158814  Monardella hypoleuca subsp. intermedia A. C. Sanders, Mark A. Elvin 2005-9-2 31613 Orange Santa Ana Mtns., near head of Holy Jim Canyon, a major tributary of Trabuco Canyon, along the trail in the switchbacks, below the towers on Santiago Peak 998 Comment
  RSA401585A  Monardella lanceolata var. lanceolata Claire Kibbe 1936-07 s.n. Orange Santa Ana Canyon. 762 Comment
  UCR238207  Monardella stoneana Mark A. Elvin 2002-7-13 s.n. Orange Southern Coast, Irvine; UCI Arboretum 15 Comment
  IRVC27048  Monardella viminea Mark A. Elvin 2005-2-8 3989 Orange UCI Arboretum Southern Coastal 15 Comment
  IRVC26728  Moraea tricuspidata Mark A. Elvin 2004-4-4 3224 Orange UCI Arboretum Southern Coastal 15 Comment
  RSA0010789  Morus Fred M. Roberts, Michelle Balk, Robert Allen, Chris Barnhill 2004-6-19 6060 Orange Santa Ana Mtns.: Holy Jim Cyn.: Holy Jim Trail, 3.3km SE summit of Santiago Peak. 628 Comment
  CAS-BOT-BC275289  Muhlenbergia microsperma Steve Boyd; Tim Ross 1992-5-19 7448 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of wilderness in Aliso Canyon at the confluence with Lucas Canyon, upstream to the Lucas Canyon Trail crossing 335 Comment
  RSA598923  Muhlenbergia microsperma Scott D. White 1997-3-28 4853 Orange Above Modjeska Canyon, proposed water tank site 425 Comment
  RSA0125893  Myoporum sandwicense Fred M. Roberts 2012-5-9 7551 Orange Lake Forest: near Serrano Creek, utility road, 0.3 km SSW intersection of Commerce Centre and Dimension Drives. 206 Comment
  UCR157698  Nama stenocarpa Adrian Wolf 1998-7-1 414 Orange South Coast, Peters Canyon Channel, east of channel between Alton and Barranca, west of Harvard 12 Comment
  RSA548852  Nassella lepida Fred M. Roberts, H. Camp 1987-3-10 3218 Orange Caspers regional park: San Juan Canyon, BN of Hwy 74, 1.9km SW San Juan Hot Springs, UTM 3715600mN, 450 400m E, alt 229m. 229 Comment
  RSA681946  Nassella pulchra Fred M. Roberts, David E. Bramlet 2003-3-13 5572 Orange Donna O'Neill Land Conservancy: Ridge west of Christianitos Canyon, 1.6 km NW Sycamore Gate., (33 deg 29' 41N, 117 deg 34' 20W; [UTM 11S-04 46 773mE, 37 06 077mN 197 Comment
  RSA732065  Nassella pulchra A. C. Sanders, Fred M. Roberts 2008-3-25 34512 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  RSA747596  Nassella pulchra Fred M. Roberts 2000-5-19 5329 Orange Lomas de Santiago: Loma Ridge, ridge west of Bee Peak above Bee Cyn. landfill, 0.2 km W Bee Peak. 500 Comment
  UCD87541  Nassella pulchra C. L. Hitchcock 1966-3-15 24142 Orange Stearns Lease, 1.5 miles east of Brea. Comment
  RSA330  Nasturtium officinale J. T. Howell 1927-7-15 404 Orange Santa Ana River, Rancho Santa Ana [Botanic Garden] 152 Comment
  RSA443822  Nasturtium officinale Gordon Marsh 1975-7-28 s.n. Orange Huntington Beach: East Garden Grove-Wintersburg Flood Control Channel, just N of Warner St. bridge crossing, (No. C05) Comment
  POM356  Nasturtium officinale Crocker 1916-4-9 s.n. Orange Santa Ana River region, Aquatec River bottom Comment
  RSA759149  Navarretia atractyloides Robt. Allen, D. Taylor 2008-7-19 s.n. Orange Along North Main Divide Road, 0.2 road miles S of junction with Bedford Rd, 3.5 road miles N of junction with Maple Springs Road, 0.84 air miles WNW of Bald Peak. Labeled on USGS Topo map as Water Tank, near BM 3702. 1142 Comment
  CAS-BOT-BC109089  Nemacaulis denudata var. denudata E. K. Balls; P. C. Everett 1955-9-7 21431 Orange On Highway 101, mouth of Santa Ana River. 3 Comment
  RSA665941  Nemacaulis denudata var. denudata Fred M. Roberts 1997-4-29 5023 Orange Bolsa Chica Salt Marsh; (US Fish and Wildlife Service cell 60) west of old oil field, 1.1 km. S Chica Survey Mark. 2 Comment
  LA9429  Nemacladus ramosissimus LeRoy Abrams; 1903-4-18 3268 Orange Capistrano Comment
  UC1607998  Nemophila menziesii Donald G. Nelson 1935-3-16 164 Orange n Fullerton; n of Fullerton 60 Comment
  RSA588711  Nemophila menziesii var. integrifolia Fred M. Roberts 1990-5-22 4639 Orange Santa Ana Mountains; Upper Hot Springs canyon, just west of Falcon Group Camp, 1.9km ESE Los Pinos Peak. 994 Comment
  CAS-BOT-BC465565  Nephrolepis cordifolia R. E. Riefner, Jr. 2013-4-5 13 -59 Orange City of Yorba Linda, southbound 91-freeway at 55-freeway interchange, ca 0.6 mi W of Lakeview Ave. 80 Comment
  CAS-BOT-BC478171  Nephrolepis cordifolia R. E. Jr. Riefner 2014-7-27 14 -261 Orange City of Long Beach, N of E 2nd Street and W of Marine Stadium Park, Alamitos Bay, along docks on Bay Shore Ave. between Monroe Ave. and E. Vista Street 6 Comment
  IRVC150  Nephrolepis cordifolia Dorleene Van Gorden 1965-3-9 HS 539 Orange Costa Mesa; 2212 Meyer Plance Southern Coastal Comment
  UCR266154  Nephrolepis cordifolia R. E. Riefner Jr. 2014-2-24 14- 64 Orange South Coast, city of Dana Point, west c. 0.1 mi from Island Way along Dana Point Harbor Drive, cliff slope immediately south of Santa Clara Avenue and Amber Lantern Street 11 Comment
  IRVC153  Nephrolepis exaltata L. Burns 1965-4-21 s.n. Orange Newport Beach; Lido Island Southern Coastal Comment
  IRVC156  Nephrolepis exaltata var. bostoniensis Don Pfirrmann 1965-4-30 HS 535 Orange Newport Beach; 259 Mayflower Drive. Southern Coastal Comment
  JEPS12502  Nicotiana glauca Alice King Apr 1908 Orange Santiago Creek; Santa Ana Mts. Comment
  RSA700001  Nicotiana glauca Kenneth Beard s.n. Orange Santa Ana riverbank Comment
  RSA743470  Nicotiana glauca Fred M. Roberts, Lee Ann Carranza, Jeff Roseler 2008-10-9 7125 Orange Dana Point: Dana Point Headlands, CNLM Preserve, at base of cliff along south edge, 0.7 km W Marine Institute (Dana Point Harbor). 3 Comment
  UC1286994  Nicotiana glauca C. L. Hitchcock 1966-3-15 24144 Orange 1.5 mi e Brea (Stearns Lease) Comment
  UCD126655  Nicotiana glauca C. L. Hitchcock 1966-3-15 24144 Orange Stearns Lease, 1.5 miles east of Brea. Comment
  UCR191471  Nicotiana glauca A. C. Sanders, Fred M. Roberts 2008-4-8 34738 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, head of Hicks Canyon, S of Santiago Reservoir 351 Comment
  RSA651999  Nicotiana glauca Norman Willis 1948-2-8 s.n. Orange 2 miles E of Orange. 61 Comment
  RSA0060158  Nicotiana quadrivalvis A. C. Sanders, Fred M. Roberts 2008-4-22 34986 Orange Lomas de Santiago, lower Hicks Canyon haul road, just above Irvine Ranch gate and road to cement plant, c. 1 mi. NE of Rattlesnake Reservoir. 213 Comment
  UC729955  Nitrophila occidentalis Carl B. Wolf 1932-6-28 3805 Orange edge of field on Bixby Ave. Bryant Ranch; E of SW corner of NW40 of NW160 91 Comment
  RSA263685  Nolina cismontana E. W. Lathrop 1976-6-28 7506 Orange 4 miles northeast of Lake Irvine, Black Star canyon, Cleveland Nat l Forest, Trabuco dist. Comment
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Jan 2 2008
  RSA746535  Nolina cismontana R. E. Riefner 2007-6-14 7 -256 Orange Irvine Ranch Reserve, Fremont Canyon Conservation Easement, W Fork Fremont Canyon, Donaldson Ranch Area. 381 Comment
  RSA751322  Nolina cismontana A. C. Sanders, Fred M. Roberts, Amber O Neal 2008-5-9 35290 Orange Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir 300 Comment
  UCR189550  Nyctocereus serpentinus Fred M. Roberts, R. L. Allen 2007-9-28 6615 Orange Santa Ana Mountains, Silverado Canyon, along Silverado Canyon Rd. at eastern edge of town of Silverado 347 Comment
  POM200890  Oenothera californica Carl B. Wolf 1931-3-25 1935 Orange along Santa Fe R. R, 1 mile west of Atwood. 91 Comment
  RSA679092  Oenothera elata subsp. hirsutissima Fred M. Roberts 2003-7-24 5967 Orange San Juan Capistrono: San Juan Creek, c.a. 0.1 km NE La Novia Bridge. Along creek on cobbly sand of wash in open southern willow scrub and mulefat scrub. 27 Comment
  POM225239  Oenothera elata subsp. hirsutissima P. A. Munz 1936-6-30 14171 Orange 5 miles south of Garden Grove. Comment
  RSA359615  Oenothera elata subsp. hookeri L. Aberbom, Walter Wisura 1986-9-9 s.n. Orange Lower San Juan Picnic area, Ortega Hwy. Comment
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Jun 8 2009
  RSA658206  Oenothera speciosa T. A. Daubert 1991-5-26 671 Orange Tucker Wildlife Sanctuary, Modjeska Canyon nature trail. Comment
  OBI5681  Oenothera suffrutescens Carl B. Wolf 1932-7-2 3809 Orange 1.5 mi E of Brea on Cedar St 107 Comment
  RSA753081  Olea europaea A. C. Sanders, Fred M. Roberts 2008-9-18 36081 Orange Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge. 320 Comment
  CAS-BOT-BC229010  Oncosiphon piluliferum R. E. Riefner, Jr. 2011-5-20 11 -57 Orange Newport Beach, Coastal Peak Park, East Coastal Peak Rd. at Ridge Park Rd. 305 Comment
  UCR155808  Oncosiphon piluliferum Robert Noll 2005-4-29 s.n. Orange South Coast, El Toro, Marine Corps Air Station, along road to archery range 107 Comment
  CAS-BOT-BC56807  Opuntia John Thomas Howell 1927-6-22 2573 Orange Field redacted by CAS, contact the data manager for more information 152 Comment
  RSA649688  Opuntia R. E. Riefner 2000-8-23 20 -733 Orange NCCP North Ranch Policy Plan Area. Fremont Canyon: N. of Santiago Creek & immediately S. of major stream fork 305 Comment
  POM284061  Opuntia X occidentalis Lyman Benson 1955-10-17 15595 Orange Moulton Ranch just west of the summit east of Laguna Beach. 152 Comment
  RSA562722  Opuntia X occidentalis Steve Boyd, Timothy S. Ross 1992-5-19 7425 Orange Southern Santa Ana Mountains San Mateo Canyon Wilderness Area. Western edge of the wilderness along Lucas Canyon Trail from access road to Rancho Carrillo (7S06) N into Aliso Canyon. 366 Comment
  SD152894  Opuntia X occidentalis Steve Boyd, Tim Ross 1992-5-19 7425 Orange Southern Santa Ana Mountains, San MateoCanyon Wilderness Area, western edge of the wilderness along Lucas Canyon Trail from access road to Rancho Carrillo north into Aliso Canyon. Local, openings in chaparral. (IPB 9/07) 365 Comment
  UCD97983  Opuntia X occidentalis Janet McIntosh 1966-4-9 17 Orange State Highway 74, 20 miles northeast of San Juan Capistrano. Comment
  UCR237804  Opuntia X occidentalis Mark A. Elvin 2004-5-2 3412 Orange Southern Coastal, Irvine: San Joaquin Freshwater Marsh, near Campus and University Drives; 1.7 km (air) NNW UC Irvine campus center 3 Comment
  CAS-BOT-BC56216  Opuntia ficus-indica John Thomas Howell 1927-6-22 2574 Orange Field redacted by CAS, contact the data manager for more information Comment
  RSA704425  Opuntia littoralis Fred M. Roberts, David E. Bramlet 2004-7-30 6081 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, Western slopes of Cristianitos Cyn., 0.25km W Sycamore Gate and Cristianitos Road. 151 Comment
  UCR196298  Opuntia littoralis A. C. Sanders, T. B. Salvato 2008-5-13 35376 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Canyon above (S of) mouth of Hangman Tree Canyon, just below Modjeska Canyon confluence 366 Comment
  CAS-BOT-BC56867  Opuntia oricola L. R. Abrams 1917-6-23 6558 Orange Field redacted by CAS, contact the data manager for more information Comment
  RSA6667  Opuntia vaseyi B. D. Stark 1933-1-17 4512 Orange 5 miles north of Laguna Beach on road to Irvine. 152 Comment
  JEPS126146  Orobanche californica subsp. jepsonii Bob Allen with Alison Colwell 2005-7-21 05 -101 Orange Whiting Ranch Wilderness Park. Comment
  RSA0070944  Orobanche fasciculata Fred M. Roberts, Carol A. Roberts 1988-6-9 4082 Orange Santa Ana Mountains: Modjeska Peak, 0.9 km SW summit. 1542 Comment
  CAS-BOT-BC355767  Osmadenia tenella D. E. Bramlet 2008-4-15 4178 Orange Foothills of the Santa Ana Mtns.: Hicks Cyn., 301m E Haul Rd, & 1.4km N of the Bee Cyn Access Rd. 206 Comment
  CAS-BOT-BC355769  Osmadenia tenella A. C. Sanders; Fred M. Roberts; Amber O'Neal 2008-5-9 35323 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, 0.3 mi. west of Eastern Transportation Corridor (Hwy 241) and 1.45 mi. east of south end of Walnut Canyon Reservoir 335 Comment
  UC912573  Osmadenia tenella Herbert L. Mason 1926-4-25 2903 Orange 5 mi n of Laguna Comment
  RSA0022432  Osmorhiza brachypoda R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49790 Orange Santa Ana Mountains: Trabuco Canyon Comment
  RSA97393  Osmorhiza brachypoda F. W. Peirson 1923-5-6 3502 Orange From Trabuco Canyon to Santiago Peak 1646 Comment
  POM353432  Oxalis albicans subsp. californica Carl B. Wolf 1931-3-6 1858 Orange Trabuco Canyon, 1.5 mile below Trabuco Camp Grounds 549 Comment
  UCR193383  Oxalis californica A. C. Sanders, Mitch Provance 2008-5-20 35391 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, mouth of Hangman Tree Canyon just above confluence with Santiago Creek Canyon, c. 1/2 mile below Modjeska Canyon confluence 366 Comment
  SEINET3347204 Image available Oxalis cernua J. R. Glen 1957-5-3 Orange .5 miles from the San Bernardino County line. 3 miles east of Olinda along Carbon Canyon road. 201 Comment
  RSA731941  Oxalis corniculata Fred M. Roberts, Sandy Leatherman 2007-11-27 6694 Orange Yorba Linda: drainage channel on east side of Amberdale Dr. c.a. 0.3km S Fairmont Blvd. 118 Comment
  RSA737550  Oxalis pes-caprae Fred M. Roberts 2008-3-12 6738 Orange Dana Point: Dana Point Headlands CNLM Preserve, western side, c.a. 0.8 km W Marine Institute (Dana Point Harbor). 50 Comment
  POM196704  Oxalis pes-caprae E. Johnson 1930-2-25 s.n. Orange About Orange Comment
  SBBG105032  Oxalis pes-caprae S. Boyd, T. Ross 1994-3-22 8203 B Orange San Juan Cyn along San Juan Crk near confluence with Hot Springs Cyn 228 Comment
  RSA761791  Oxytheca trilobata Robt. Allen 2003-6-22 12279 Orange Along North Main Divide Road, 6.3 road miles north of Falcon Group Campground, circa 2.43 air miles northwest of Los pinos Saddle. 1334 Comment
  RSA17142  Paeonia californica Carl B. Wolf 1936-6-17 7949 Orange Santa Ana Mts., along Ortega Hwy, 6/10 mi below San Juan Hot Springs. 183 Comment
  UCSB41782  Paeonia californica Soper, Robert 1971-2-27 Orange Trabuco Cyn ca 2 mi. from paved road turn-off 365 Comment
  RSA0038514  Pallenis maritima R. E. Riefner Jr. 2011-7-1 11 79 A Orange city of Laguna Beach, Aliso Creek Beach, rocky shore and bluff between Aliso Beach Park and West Street 4 Comment
  UCR241100  Pallenis maritima R. E. Riefner Jr. 2010-1-2 10- 03 Orange South Coast, City of Laguna Beach, Moss Point, vicinity of Ocean Way at Ruby St. 2.5 Comment
  RSA0036015  Panicum capillare var. occidentale Robert F. Thorne 1977-11-21 50804 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs Comment
  RSA731538  Panicum dichotomiflorum subsp. dichotomiflorum R. E. Riefner 2007-9-30 7 -416 Orange City of Yorba Linda, Santa Ana Canyon, La Palma Ave. at Via Lomas De Yorba East. 110 Comment
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Dec 21 2011
  UCD89738  Panicum miliaceum Beecher Crampton 1965-10-27 7585 Orange 2 miles E of Irvine, UC South Coast Field Station. Comment
  RSA724059  Panicum virgatum R. E. Riefner 2006-10-8 6 -482 Orange City of Irvine, San Diego Creek near 405-Freeway. 49 Comment
  UCR281841  Parietaria judaica R. E. Riefner Jr. 2017-8-23 17- 430 Orange South Coast, city of Huntington Beach, Sunset Beach, along South Pacific Avenue, vicinity of 17th St. 4 Comment
  UCR210364  Parthenocissus T. B. Salvato, Billy Deane 2006-10-16 1924 Orange South Coast, Irvine, San Diego Creek flood control channel, between Michelson Drive and the 405 FWY 12 Comment
  RSA725537  Parthenocissus inserta Fred M. Roberts, Robert L. Allen 2007-9-28 6609 Orange Santa Ana Mtns.: Silverado Cyn., along Silverado Cyn. Rd. at eastern edge of town of Silverado. 347 Comment
  CAS-BOT-BC259631  Paspalum dilatatum Ira L. Wiggins 1965-10-2 20270 Orange At Hillcrest Park, Fullerton Comment
  UCR174227  Paspalum dilatatum A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33031 Orange Peninsular Range; Santa Ana Mtns., San Juan Canyon, from Lower San Juan Picnic Area to c. 1 mile downstream, parallel to Hwy 74 and near Riverside Co. line 396 Comment
  RSA696379  Paspalum distichum Keith E. Hoffmaster 1933-10-29 s.n. Orange Near Tustin Comment
  RSA784195  Paspalum distichum J. D. Olmsted 1959-9-22 980 Orange North of Santa Ana Mtns. Drainage area to Pacific Ocean: Along Santa Ana River just north of Sycamore Park and near intersection of stream from 3M clay works to the south. 137 Comment
  RSA798100  Paspalum distichum R. F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49568 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74) Comment
  RSA766072  Paspalum pubiflorum R. E. Riefner Jr. 2009-10-10 09 -222 Orange City of Yorba Linda, Santa Ana Canyon, N bank of Santa Ana River, E of Weir Canyon Rd., vicinity of La Palma Ave. and Mercado del Rio. 107 Comment
  RSA733050  Paspalum vaginatum R. E. Riefner 2003-10-17 03 -456 Orange City of San Juan Capistano, Trabuco Creek, S side of Del Obispo St. at Paseo Adelento St. 26 Comment
  RSA769300  Paspalum vaginatum R. E. Riefner Jr. 2009-1-2 41892 Orange City of Newport Beach, Upper Newport Bay, Delhi Channel near University Dr. 0 Comment
  RSA737240  Paspalum virgatum R. E. Riefner, K. Campbell 2008-8-31 08 -267 Orange Orange County: city of Irvine, San Diego Creek, E side of Hwy 73 overpass, alt 2ft. 1 Comment
  UCR250862  Pectocarya linearis Dick Newell, Don Millar 2014-4-1 359 Orange Peninsular Range; Santa Ana Mtns., lower Fremont Canyon wash, 0.15 mi. NE of MWD Road and Lake View SCE Rd. 206 Comment
  RSA0045505  Pectocarya linearis Keith E. Hoffmaster 1935-3-17 841 Orange Near El Toro[Lake Forest] (Trabuco rd.). Comment
  RSA1458  Pedicularis densiflora E. R. Johnson 1929-4-11 1259 Orange Sierra Peak Trail. Comment
  RSA787503  Pedicularis densiflora Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49711 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  RSA790703  Pedicularis densiflora L. C. Hull 1934-3-11 s.n. Orange Ortega Highway. Comment
  RSA0033804  Pedicularis densiflora Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49685 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  JEPS117764  Pelargonium Mark A. Elvin 2005-5-14 4314 Orange Southern Coastal: UCI Arboretum. Comment
  RSA782219  Pelargonium Mark A. Elvin 2005-5-14 4313 Orange UCI Arboretum 15 Comment
  SD186238  Pelargonium A. C. Sanders, Mark A. Elvin 2003-10-12 27314 Orange Irvine, UCI Arboretum. 14 Comment
  UCR196964  Pelargonium Mark A. Elvin 2005-5-14 4314 Orange Southern Coastal, UCI Arboretum 15 Comment
  RSA686730  Pellaea andromedifolia M. B. Dunkle 1935-2-23 4339 Orange Dana Point. 9 Comment
  RSA698462  Pellaea andromedifolia R. H. McArthur 1934-4-28 s.n. Orange Ladd Canyon Comment
  RSA739324  Pellaea mucronata Keith E. Hoffmaster 1934-7-13 33 ` Orange Santa Ana Mountains Comment
  RSA660592  Pellaea mucronata var. mucronata R. E. Riefner, Adrian Wolf 2000-6-1 20 -452 Orange NCCP North Ranch Policy Plan Area. N of Irvine Lake and W of Black Star Cyn; W. of dirt access rd. USGS 7.5' Quad: Black Star Canyon. 518 Comment
  UCR266687  Pennisetum clandestinum D. E. Bramlet 2009-11-20 4416 Orange South Coast, San Diego Creek between Irvine and Newport Back Bay 8 Comment
  RSA0014064  Pennisetum setaceum Fred M. Roberts 2008-5-30 7015 Orange Lomas de Santiago: Santiago Creek wash, 0.6 km SSE Silverado Sch., Irvine Ranch Conservancy. 314 Comment
  RSA731966  Pennisetum setaceum A. Sanders 2008-4-29 35138 Orange Lomas de Santiago, western end of Loma Ridge on road to shriff's training facility, c. 1.5mi SW of Santiago Reservoir. 335 Comment
  SD88165  Pennisetum setaceum Reid Moran 1972-5-21 19135 Orange Roadside 2 miles north of San Clemente 99 Comment
  UCR182899  Pennisetum setaceum Dean Kelch 2006-12-9 06 .564 Orange Irvine. University Dr. along tidal Creek just east of I-73 9 Comment
  RSA610216  Pennisetum setaceum Fred M. Roberts 1997-4-19 5013 Orange San Juan Canyon along San Juan Creek at CA. Rte. 74 bridge just east of San Juan Hot Springs, 0.8km SSE Juan Rancho Surbey Mark 240 Comment
  UC1063390  Penstemon heterophyllus A. Lewis May 1934 432 Orange Los Pinos Peak Cleveland National Forest, Elsinore Quadrangle, Los Pinos Pk Comment
  UCR234136  Penstemon heterophyllus Dick Newell, Peter Wetzel 2011-8-30 219 Orange Peninsular Range; Santa Ana Mtns., Black Star Canyon Rd. and Edison Rd. 502 Comment
  RSA761797  Penstemon heterophyllus Robert Allen 2003-6-22 12310 Orange West-facing flank of Santiago Peak, near the saddle between Santiago and Modjeska Peaks, along North Main Divid Road. 1523 Comment
  RSA539360  Penstemon heterophyllus var. australis Fred M. Roberts, Carol A. Roberts 1988-6-9 4077 Orange Santa Ana Mountains: Main Divide Truck Trail, saddle between Modjeska Peak and Santiago Pk., 0.5 km Ee summit of Modjeska Pk. 1445 Comment
  UCSB52393  Penstemon spectabilis Roberts, Fred 1982-7-20 Orange Santa Ana Mtns.: 1.8 km by road NE Falcon Group Camp; 2.9 km E Los Pinos Peak 1082 Comment
  CAS-BOT-BC330340  Pentachaeta aurea Le Roy Abrams 1903-4-17 3259 Orange Near El Toro Comment
  RSA16996  Pentachaeta aurea Percy C. Everett 1935-4-22 7745 Orange 1/4 mile W of Horseshoe Bend, Santa Ana Canyon 122 Comment
  UC718583  Pentachaeta aurea P. C. Everett 1935-4-22 6463 Orange 1/4 mi w Horseshoe Bend; Santa Ana Canyon 121 Comment
  RSA759154  Pentachaeta aurea subsp. allenii Robt Allen 2008-3-30 s.n. Orange San Joaquin Hills, Laguna Coast Wilderness Park, along Stagecoach South Trail, about 0.25 air mile S of trailhead near the Nix Nature Center. 163 Comment
  RSA0060347  Pentagramma triangularis Gary D. Wallace, G. Cromwell 1966-4-16 459 Orange W edge of Cleveland Nat. For. about 5 mi. E of San Juan Capistrano, in the Santa Ana Mountains, in Hot Springs Canyon. Comment
  RSA687393  Pentagramma triangularis subsp. triangularis May N. Ackley 1925-05 83 Orange Silverado Canyon Comment
  RSA749470  Pentagramma triangularis subsp. triangularis Fred M. Roberts 1999-4-22 5190 Orange Lomas de Santiago: tributary to Santiago Creek wash along spur road on ridge between Limestone Cyn. and Santiago Creek wash opposite Williams Cyn., 1.8 km SE Silverado Sch. and 2.3 km NNW Bolero Lookout. 396 Comment
  SD224906  Peritoma arborea B. Pitzer 1996-4-30 2796 Orange Crystal Cove State Park, S of City of Irvine on State Hwy 1 (= Pacific Coast Hwy). 14 Comment
  CAS-BOT-BC77511  Peritoma arborea var. arborea R. D. Goeden; D. W. Ricker 1965-6-21 s.n. Orange Dana Point 60 Comment
Read comments
Feb 22 2019
  CAS-BOT-BC418841  Persicaria hydropiperoides John Thomas Howell 1927-7-5 2653 Orange Near Horseshoe Bend, Santa Ana River bottom, Santa Ana Canon [Canyon] 152 Comment
  POM4185  Petunia parviflora Philip A. Munz 1918-5-4 2203 Orange Laguna Beach. Comment
  UC537279  Petunia parviflora L. M. Booth 1932-12-16 1378 Orange near coast Santa Ana River Comment
  RSA734892  Phacelia brachyloba A. C. Sanders, Mitch Provance 2008-5-20 35423 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago area, Santiago Creek Canyon, c. 3/4 mile blow Modjeska Canyon confluence. 345 Comment
  RSA263669  Phacelia cicutaria var. hispida E. W. Lathrop 1974-6-27 7430 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  RSA769612  Phacelia cicutaria var. hispida E. W. Lathrop 1974-6-27 7430 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  RSA697797  Phacelia cicutaria var. hispida L. C. Hull 1934-4-1 s.n. Orange Panorama Heights Comment
  HSC83900  Phacelia davidsonii Christopher Davidson 1977-5-18 5608 Orange Santa Ana Mts. Cleveland Nat. Forest. Santiago Peak (on Orange-Riverside Co. line). 1707 Comment
  POM4488  Phacelia davidsonii L. R. Abrams 1901-06 1936 Orange Santiago Peak. Comment
  HSC13701  Phacelia distans S. M. Clapp 1966-4-10 44 Orange 4 mi. into Black Star Canyon 183 Comment
  JEPS2401  Phacelia distans Alice King 1908-3-9 Orange Anaheim plains Comment
  JEPS2402  Phacelia distans Alice King June 1908 Orange Santa Ana Comment
  RSA606  Phacelia distans J. T. Howell 1928-3-18 892 Orange Rancho Santa Ana, Botanic Garden. 152 Comment
  RSA732234  Phacelia distans A. C. Sanders, Fred M. Roberts 2008-4-22 35040 Orange Lomas de Santiago, valley at south end of Loma Ridge and at head of Limestone Canyon, c. 2.5 miles SW of Silverado, above spring shown on topo map. 427 Comment
  UCR215310  Phacelia distans Fred M. Roberts 2008-3-26 6800 Orange South Coast, Dana Point; Dana Point Headlands, Center for Natural Lands Mgmt. Preserve near NE gate, 0.5 km west of Marine Institute, Dana Point Harbor 75 Comment
  UCR250853  Phacelia distans Dick Newell, Don Millar 2014-4-15 362 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Agua Chinon wash at the lower gate next to the 241 toll road 328 Comment
  RSA542476  Phacelia distans Fred M. Roberts, T. Sholars 1988-3-29 3877 Orange San Joaquin Hills: Laguna Canyon along Laguna Canyon road, 2kim by road N Pacific Coast Hwy, 2.1km E guna Survey Marker. 34 Comment
  UCSB48102  Phacelia distans Roberts, Fred 1982-4-3 Orange Santa Ana Mtns.: Lower Hot Springs Cyn., 0.6 km. by road N of San Juan Guard Station; 0.8 km. WSW Juan Rancho Survey Mark 240 Comment
  RSA759261  Phacelia grandiflora Robt. Allen, Vicky Malton, Raul Murillo Jr. 2008-5-11 s.n. Orange Lomas de Santiago, Whiting Ranch Wilderness Park. Along Santiago Ranch Road. 436 Comment
  RSA1319  Phacelia minor J. T. Howell 1928-7-10 1089 Orange Trabucco Canyon, Santa Ana Mts 381 Comment
  RSA699778  Phacelia minor Keith E. Hoffmaster 1935-4-14 s.n. Orange Live Oak can. Comment
  SBBG40448  Phacelia minor J. Ingram 1960-3-29 268 Orange across from O'Neill Park, Trabuco Cyn Comment
  POM8648  Phacelia parryi P. A. Munz, R. D. Harwood 1920-4-24 3780 Orange Sierra [Freemont] Canyon 366 Comment
Read comments
Sep 17 2011
  UCR192723  Phacelia parryi A. C. Sanders, Fred M. Roberts 2008-5-6 35227 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hicks Canyon, just above tollway (Hwy 241) crossing on Irvine Haul Rd., near debris basin 216 Comment
  UCR193841  Phacelia parryi A. C. Sanders, Fred M. Roberts 2008-7-16 35861 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hangmans Tree Canyon 379 Comment
  UCR220302  Phacelia parryi Dick Newell, Don Millar, Jutta Burger 2010-3-16 010 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Agua Chinon Wash 250 m north of Hwy 241 toll road 201 Comment
  UCR224034  Phacelia parryi Justin M. Wood 2010-3-31 1449 Orange Santa Ana Canyon, Santa Ana River floodplain, 0.25 mi north of Coal Canyon wildlife corridor, west of Green River Golf Course on bluff south of the river 122 Comment
  RSA7465  Phacelia ramosissima var. latifolia Carl B. Wolf 1933-8-24 5389 Orange Summit of Santiago Peak, Santa Ana Mountains. 1707 Comment
  RSA759243  Phacelia suaveolens subsp. keckii Robt. Allen, Lori Whalen 2008-7-5 s.n. Orange Along Harding Canyon Truck Trail, on the ridgeline south of upper Harding Canyon. 1.55 air miles SW of Maple Springs Saddle - Harding Canyon USFS gate, 0.71 air miles due W of BM 5015 on Main Divide Road, W arm of Modjeska Peak., Survey point no. 38 1298 Comment
  UCR224402  Phacelia suaveolens subsp. keckii Robt. L. Allen, Reginald Durant 2008-5-16 s.n. Orange Santa Ana Mountains, along access road to Modjeska Peak, outside the sharp bend in the extreme north end of the road. Survey Point #47 1514 Comment
Read comments
Jul 21 2018
  RSA650512  Phacelia tanacetifolia Grant Garland 1948-5-16 s.n. Orange Found off highway 101 below Santa Ana 30 Comment
  RSA0127610  Phalaris minor Fred M. Roberts 2016-4-26 8041 Orange Lomas de Santiago: South of Santiago Canyon Road in tributary to Lower Presida Canyon just southwest of Irvine Lake, 2.2 km S Irvine Lake dam spillway and 0.6 km SW Irvine Lake Park. 265 Comment
  UCR97073  Phalaris minor Scott D. White 1993-4-28 1286 Orange Pacific slope, Tustin Marine Corps Air Station, NW of Peters Canyon Channel, between Moffett Dr. & Warner Comment
  RSA5942  Phalaris minor C. B. Wolf 1932-7-7 3854 Orange Bixby Ave. 0.3 mile east of Los Alamitos Blvd. (250 ft E of SW corner of NE/4 of NE/4 of Sec 31 T4S R11W) 8 Comment
Read comments
Apr 10 2014
  RSA708439  Phalaris minor Mark Elvin 2004-5-2 3422 Orange Southern Coastal, Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7 km (air) NNW of UC Irvine Campus center. 3 Comment
  CDA22565  Phalaris paradoxa J. B. Anderson 1966-4-26 620 Orange University of California, Irvine. South of Science Lecture Hall. 0 Comment
  UCR4127  Philadelphus lewisii F. Zaebst 1959-4-19 4127 Orange Peninsular Range; Santa Ana Mtns., Coastal side of mountains on Calif. Hwy 74, 3.2 mi west of San Juan Guard Station, north side of road Comment
  POM3742  Pholistoma auritum D. L. Crawford 1916-07 s.n. Orange Laguna Beach region. Comment
  RSA751289  Phoradendron villosum A. C. Sanders, Fred M. Roberts 2008-7-3 35673 Orange Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor 365 Comment
  JEPS39026  Phyla lanceolata Lawrence M. Booth 1932-7-1 1238 Orange Anaheim Creek Comment
  RSA650  Phyla lanceolata J. T. Howell 1927-7-15 401 Orange Santa Ana River, Rancho Santa Ana [Botanic Garden] 152 Comment
  RSA651  Phyla lanceolata J. T. Howell 1927-6-30 244 Orange Bryant Ranch, near Long Beach. 15 Comment
  RSA384022  Phyllospadix torreyi George R. Johnstone 1927-8-14 s.n. Orange Laguna Beach. Comment
  RSA682950  Phyllospadix torreyi E. Yale Dawson 1957-11-23 17817 Orange Corona del Mar, Orange, Co. Comment
  RSA684065  Phyllospadix torreyi E. Yale Dawson 1958-1-5 18117 Orange E side of Crystal Cove. Station no 42. 140-150 ft from shore base point. Comment
  RSA691  Physalis philadelphica J. T. Howell 1927-7-28 513 Orange West side, Rancho Santa Ana. 152 Comment
  UCR281509  Phytolacca icosandra Mitch Provance, Jeremiah George 2017-3-20 317- 101 Orange West Coyote Hills, Fullerton, vicinity of Utility Access Road W of Gilbert Street and N of Rosecrans Ave., on land previously occupied by oil fields. 131 Comment
  RSA5330  Pickeringia montana var. tomentosa B. D. Stark 1933-1-4 4484 Orange Ridge above Claymine Canyon. No. end of Santa Ana Mts. 305 Comment
  RSA759246  Pickeringia montana var. tomentosa Robert Allen, Celia Kutcher 2007-5-19 s.n. Orange San Juan Trail, North flank of [New] Sugarloaf Peak, circa 2.2 air miles (3595) below (southwest of) trailhead at southern edge of Blue Jay Campground. Circa 2.5 air miles (3973m) above (northeast of) trailhead at Hot Springs Canyon. 886 Comment
  RSA759537  Pickeringia montana var. tomentosa Robert Allen, Nancy Heuler 2007-5-19 s.n. Orange San Juan Trail circa 2.6 air miles below (SW of) trailhead at southern edge of Blue Jay Campground, circa 2.1 air miles above (NE of) trailhead at Hot Springs Canyon 848 Comment
  UCR195021  Picris echioides A. C. Sanders, Fred M. Roberts 2008-8-7 35993 Orange Peninsular Range; Santa Ana Mtns., lower Weir Canyon, at narrow gorge c. 0.6 mi. above mouth of cyn at Irvine Ranch gate 192 Comment
  UCR46555  Picris echioides B. G. Pitzer, D. C. Hawks 1986-10-21 0353 A Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, c. 10 mi east of Santa Ana, in hills N and east of South Coast Gun Club on Jeffrey Road in Hicks Canyon 183 Comment
  RSA708231  Pilularia americana Fred M. Roberts, Robert L. Allen, Chris Barnhill, Carol A. Roberts 2005-4-10 6160 Orange Costa Mesa: Fairview Park, west of north end of Canyon Drive, c.a. 0.2km WNW Marison Special Education Center., (Canyon Sch. on topos). 24 Comment
  UC1543146  Pilularia americana Donald G. Nelson 1935-4-15 301 Orange near Costa Mesa (on rd from Garden Grove to Costa Mesa, <rd.> converging toward main hwy. from Santa Ana) Comment
  UC1713694  Pinus attenuata Carl B. Wolf 1934-12-21 6259 Orange 1.3 mi s summit of Skyline Drive (saddle nw of Sugarloaf Pk. (Pleasants Pk.), s slope of main ridge); Santa Ana Mountains 1158 Comment
  MACF029432  Pinus coulteri Robert L. Allen; Heather E. Wendel; Xanic J. Rondon; Laurie A. Clarke 2001-7-13 12242 Orange Santa Ana Range, San Juan Canyon, 3.7 road miles E of San Juan Guard Station following Ortega Hwy SR74. Lower San Juan Picnic Area, SW of region of main picnic area 443.7 Comment
  RSA7645  Pinus coulteri C. B. Wolf 1933-12-24 5386 Orange Approximately the head of Highway Canyon on slope of Modjeska Peak, on the road to the Santa Ana Mts. Altitude 4000 ft 1220 Comment
  RSA659356  Pinus halepensis P. Shirokawa 1998-5-15 42 Orange Cleveland National Forest- Trabuco Ranger District, 4.25 miles from Ortega Highway (State Highway 74) on North Main Divide Road, and 0.5 miles into Falcon campground 1067 Comment
  UCR210311  Pistacia A. C. Sanders, Fred M. Roberts, Jutta Burger 2009-10-21 37202 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Canyon near mouth of Limestone Cyn., near Agustine Staging Area at south foot of Blue Diamond Haul Rd. bridge over Santiago Canyon Rd. 253 Comment
  UCR107848  Plagiobothrys acanthocarpus Scott D. White, B. Leatherman 1998-1-26 6064 Orange Irvine, Univ. of Calif. Irvine Campus: Site of proposed Research Park. SW of main campus circle, c. halfway between Berkeley Avenue and new freeway (Bonita Cyn.) 37 Comment
  RSA699337  Plagiobothrys arizonicus L. C. Hull 1934-3-11 s.n. Orange Ortega Highway. Comment
  UCR192485  Plagiobothrys canescens A. C. Sanders, Fred M. Roberts 2008-3-25 34511 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  RSA716095  Plagiobothrys collinus Fred M. Roberts, Melissa Ervin 2001-3-21 5386 Orange San Joaquin Hills: Upper San Canyon, c..a. 2km SE French Hill, within the Shady Cyn. Development. 98 Comment
  UCR102021  Plagiobothrys collinus B. G. Pitzer 1997-3-25 3025 Orange San Joaquin Hills, Crystal Cove State Park, Pelican Point Area, grassland between Pacific Coast Hwy and the bike trail 30 Comment
  IRVC9331  Plagiobothrys collinus var. californicus C. Leavell 1966-3-16 59 Orange El Toro Rd. near Post Office; in open field. El Toro Comment
  IRVC22199  Plagiobothrys collinus var. fulvescens Fred M. Roberts 1985-4-8 1637 Orange San Joaquin Hills, Turtle Rock area, hill 1.1km SE French Hill, Irvine 196 Comment
  SBBG93236  Plagiobothrys nothofulvus J. Ingram 1960-3-29 258 Orange 3 mi above O'Neill Park, Trabuco Cyn Comment
  POM98152  Plagiobothrys nothofulvus P. A. Munz s.n. Orange Santa Ana Mountains, Silverado Canyon 549 Comment
  RSA523560  Plantago erecta L. M. Booth 1932-5-18 1055 Orange Newport Bay Comment
  RSA542449  Plantago erecta Fred M. Roberts 1988-3-15 3868 Orange Rancho Mission Viejo: Central Gabino Canyon, 7km E Playa Survey Marker, 162 Comment
  UC1125628  Plantago erecta A. Lewis Mar 1934 368 Orange Black Star Canyon Corona Quad. 457 Comment
  UCR192214  Plantago erecta A. C. Sanders, Fred M. Roberts 2008-5-6 35253 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, slope SE of road junction along ridge road, near head of Agua Chinon Canyon, 2.4 miles north of El Toro 470 Comment
  UCR209373  Plantago erecta Fred M. Roberts, Linda Farley 2008-3-28 6815 Orange Santa Ana Mountains, Upper Weir Canyon, Irvine Ranch Conservancy, east fork along ridge just west of SR 241, 3.4 km east of Robber's Peak 437 Comment
  HSC16872  Plantago indica Unknown Jun 1961 Orange Vacant lot in Balboa Comment
  RSA542454  Plantago indica Fred M. Roberts 1987-6-30 3469 Orange Bolsa Chica Salt Marsh: Pacific coast Hwy, 0.8kim SE Warner. 2 Comment
  RSA749680  Plantago major A. C. Sanders, Fred M. Roberts 2008-7-16 35839 Orange Lomas de Santiago, Dripping Springs off Limestone Canyon, c. 7.5 mi. ESE of Tustin. 391 Comment
  POM201757  Plantago major L. M. Booth 1932-6-28 1219 Orange Bolsas Marsh. Comment
  JEPS4909  Plantago subnuda Lawrence M. Booth 1932-6-17 1208 Orange Bolsas Creek Comment
  RSA424275  Plantago subnuda Anstruther Davidson 1910-4-1 s.n. Orange Corona Del Mar Comment
  IRVC29040  Platanus racemosa Mark A. Elvin, A. C. Sanders 2005-9-2 4500 Orange Mouth of Lion Cyn, just up stream from Lower San Juan Campground. Santa Ana Mtns 457 Comment
  RSA725469  Platanus racemosa Fred M. Roberts, Megan Lulow 2007-7-30 6549 Orange Fremont Canyon, 1.3 km NE Irvine Lake spillway, North Irvine Ranch Policy Area. 253 Comment
  UCR193300  Platanus racemosa A. C. Sanders, Fred M. Roberts 2008-6-17 35471 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Agustine staging area near Limestone Canyon Rd. gate at Santiago Cyn Rd. 260 Comment
  SEINET7779659  Platanus racemosa Unknown 1966-8-22 2390 Orange O'Neill State Park, about 20 miles southeast of Anaheim Comment
  SD218281  Plecostachys serpyllifolia R. E. Riefner Jr. 2006-7-26 06 319 Orange City of Irvine, north side of Irvine Blvd. at SR 133 on ramp. Comment
  UC2061644  Plecostachys serpyllifolia R. E. Riefner Jr. 2004-12-30 04 -681 Orange City of Laguna Beach, vicinity of West St. and Pacific Coast Highway. Comment
  UCR222648  Plecostachys serpyllifolia R. E. Riefner Jr. 2008-10-22 08- 308 Orange South Coast, city of Laguna Beach, ocean bluff vicinity of West St. and Pacific Coast Highway 4 Comment
  UCR230581  Plecostachys serpyllifolia R. E. Riefner Jr. 2011-6-25 11- 71 Orange South Coast, city of Laguna Beach, Woods Cove, vicinity of Ocean Way at Pearl Street 9 Comment
  UCR238457  Plecostachys serpyllifolia R. E. Riefner Jr. 2009-7-18 09- 151 Orange South Coast, city of Dana Point, beach near Salt Creek, vicinity of Ritz Carlton Resort 2.5 Comment
  IRVC29816  Pluchea odorata Mary H. White 2006-9-23 92306 2 Orange San Joaquin Marsh Freshwater Marsh, UC Natural Reserve; SW edge, along San Diego Creek, N of University Drive, E Hwy 73. Southern Coastal 2 Comment
  RSA232234  Pluchea odorata James Henrickson 1970-7-24 4986 Orange 2 miles NW of Huntington Beach around small freshwater industrial pond at eastern margin of Bolsa Chica Salt Marsh along Huntington Beach Mesa. 0 Comment
  RSA254976  Pluchea odorata C. W. Tilforth 1975-9-6 1048 Orange Upper Bay, Newport Beach: North-east shoreline. Comment
  POM47590  Pluchea odorata I. M. Johnston 1924-8-29 s.n. Orange 1 mile north of Santa Ana. Comment
  UCR67014  Pluchea purpurascens A. C. Sanders 1990-10-6 10185 Orange South Coast, Newport Back Bay, SW side at North Star County Beach, SW end of the bay, c. 2 km inland from Hwy 1/ Pacific Coast Hwy 3 Comment
  SD247604  Pluchea purpurascens R. F. Thorne, E. W. Lathrop and W. Wisura 1977-7-8 49637 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs. Comment
  PASA1247  Poa howellii Frank W. Peirson 1923-5-6 Orange ""Holy Jim"" trail to Santiago Peak 990 Comment
  IRVC29714  Polygonum Mark A. Elvin, Barry S. Nerhus 2006-11-4 5250 Orange Huntington Beach; 1.5 km SW of Wintersburg, SW of jct Slater and Goldenwest; Shipley Nature Center. Southern Coastal 1 Comment
  UCR46714  Polygonum aviculare B. G. Pitzer, D. C. Hawks 1986-12-17 0380 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, on Santiago Cyn Rd., c. 1.0 mi SW of [Irvine Lake] Santiago Reservoir 305 Comment
  IRVC3045  Polypodium californicum A. S. Boughey 1965-3-5 51 Orange Trabuco Canyon. Santa Ana Mountains Comment
  RSA617721  Polypodium californicum Scott D. White 1996-12-20 4629 Orange Above Modjeska Canyon: Proposed water tank site. 427 Comment
  UCSB62524  Polypodium californicum Kiefer, Lawrence 1963-11-17 Orange Laguna Beach, Aliso Canyon, ca. 100 yards up canyon from Aliso Beach parking area, Hwy 101. 45 Comment
  IRVC21428  Polypodium californicum A. S. Boughey 1969-3-18 s.n. Orange Ortega Highway; 2mi E of San Juan Guard Station. Southern Coastal Comment
  CAS-BOT-BC237265  Polypogon monspeliensis Peter H. Raven 1957-9-28 11375 Orange N limits of Surfside Comment
  IRVC14877  Polypogon monspeliensis Gordon A. Marsh, Karlin G. Marsh 1976-7-8 s.n. Orange San Clemente: Pacific Ocean beach, along railway, near W. Escalones and W. Mariposa Ave. southern coastal Comment
  IRVC1811  Polypogon monspeliensis L. Stilgenbauer 1965-4-15 s.n. Orange Corona del Mar; 339 Milford Drive. southern coastal Comment
  IRVC8600  Polypogon monspeliensis J. B. Anderson 1966-4-17 593 Orange Newport Beach: along roadside ditch in field NE of Newport Harbor High School. southern coastal Comment
  RSA483352  Polypogon monspeliensis E. Crow 1929-4-7 294 Orange SE of Orange Co. Park; Santa Ana River. Comment
  RSA696314  Polypogon monspeliensis Anonymous s.n. Orange Santa Ana. Comment
  RSA697713  Polypogon monspeliensis Anonymous s.n. Orange Near Orange Co. Park. 793 Comment
  UCR96877  Polypogon monspeliensis Scott D. White 1993-4-28 1280 Orange Pacific slope, Tustin Marine Corps Air Station, NW of Peters Canyon Channel, between Moffett Dr. & Warner Comment
  UCR99548  Polypogon monspeliensis B. G. Pitzer 1996-4-30 2799 B Orange San Joaquin Hills, Crystal Cove State Park, south of City of Irvine on State Hwy 1 (Pacific Coast Hwy) 15 Comment
  RSA696614  Polypogon monspeliensis Rankin s.n. Orange Costa Mesa. Comment
  RSA91997  Polypogon monspeliensis F. W. Peirson 1924-5-31 4649 Orange Laguna Canyon near Laguna Beach. 107 Comment
  RSA731799  Polypogon viridis Fred M. Roberts, Sandy Leatherman 2007-11-9 6638 Orange Santa Ana Mtns.: San Juan Canyon, Lower San Juan Picnic Ground. 408 Comment
  RSA747709  Polypogon viridis Fred M. Roberts 2008-5-16 6987 Orange Dana Point: Dana Point Hradland, CNLM Preserve, north of Marguerita Drive, 0.5 km WNW Marine Institute, Dana Point Harbor. 75 Comment
  SEINET10959318  Polypogon viridis LeRoy R. Abrams Abrams s.n. Orange Santa Ana River, Santa A. Comment
  IRVC25447  Polystichum imbricans subsp. curtum Fred M. Roberts, K. G. Marsh 1987-5-14 3439 Orange Santa Ana Mtns: Upper Trabuco Canyon, Trabuco Canyon Trail, 1.3km NE Los Pinos Peak. Peninsular Ranges 1231 Comment
  RSA132  Populus X parryi J. T. Howell 1928-2-26 860 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  RSA0035664  Populus balsamifera subsp. trichocarpa R. E. Riefner Jr. 2012-9-23 12 -512 Orange city of Yorba Linda, Santa Ana Canyon, north side of Santa Ana River, La Palma Avenue at Via Del Rio Road 104 Comment
  UCR195011  Populus balsamifera subsp. trichocarpa A. C. Sanders, Fred M. Roberts 2008-8-7 35974 Orange Peninsular Range; Santa Ana Mtns., lower Weir Canyon, at narrow gorge c. 0.6 mi. above mouth of cyn at Irvine Ranch gate 192 Comment
  RSA724058  Populus balsamifera subsp. trichocarpa R. E. Riefner 2007-6-12 7 -253 Orange City of San Juan Capistrano. Vicinity of Calle Arroyo/Paseo Esteban at San Juan Creek 152 Comment
  IRVC27726  Populus fremontii subsp. fremontii Mark A. Elvin 2004-5-2 3430 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7km (air) NNW UC Irvine campus center. Southern Coastal 3 Comment
  UC1134818  Populus trichocarpa A. Lewis Mar 1934 336 Orange Santa Ana Canyon; Corona Quad., Santa Ana Canyon Comment
  JEPS34991  Porophyllum gracile Ethel Rockwell Orange Santa Ana Mts., Trabuco Canyon Comment
  POM180684  Porophyllum gracile J. T. Howell 1929-3-2 4097 Orange Rocky hills on N side of Santa Ana Canyon. 152 Comment
  RSA753486  Portulaca oleracea A. C. Sanders, Fred M. Roberts 2008-9-18 36071 Orange Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge 320 Comment
  CAS-BOT-BC452122  Potamogeton crispus John Thomas Howell 1928-9-6 4079 A Orange Santa Ana River bottom, Santa Ana Canon [Canyon] 152 Comment
  CAS-BOT-BC453919  Potamogeton pectinatus Street; Williams 1919-5-4 2690 Orange Laguna Beach Region. Laguna Lakes Comment
  RSA780828  Potentilla glandulosa subsp. glandulosa Sandy Leatherman 2011-5-16 2011 -15 Orange Peninsular Ranges; Chino-Puente Hills region: 50 meters west of Carbon Canyon Road and Lions Canyon Road in Carbon Canyon in the City of Brea. 273 Comment
  RSA780831  Potentilla glandulosa subsp. glandulosa Sandy Leatherman 2011-6-2 2011 -19 Orange Peninsular Ranges; Chino-Puente Hills region: 50 meters west of Carbon Canyon Road and Lions Canyon Road in Carbon Canyon in the City of Brea 273 Comment
  IRVC27531  Prosopis glandulosa var. torreyana Mark A. Elvin 2004-5-2 3419 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7km (air) NNW UC Irvine campus center. Southern Coastal 3 Comment
  RSA650384  Prunus Jack D. Ingwersen 1962-5-12 s.n. Orange Anaheim Comment
  RSA542402  Prunus ilicifolia Fred M. Roberts Jr., Carol A. Williams 1988-3-8 3826 Orange San Juan Canyon, Hwy 74, 1.2 km SSW Lower San Juan Picnic Ground. 378 Comment
  RSA747708  Pseudognaphalium californicum Fred M. Roberts 2008-5-16 6986 Orange Dana Point: Dana Point Hradland, CNLM Preserve, north of Marguerita Drive, 0.5 km WNW Marine Institute, Dana Point Harbor. 75 Comment
  CAS-BOT-BC502070  Pseudognaphalium leucocephalum R. E. Riefner, Jr. 2015-12-9 15 -461 Orange Rancho Mission Viejo, E of San Juan Capistrano, San Juan Creek, W of Antonio Pkwy, N side of Ortega Hwy (Hwy 74), near bridge at Sendero Field Park 55 Comment
  RSA737237  Pseudognaphalium leucocephalum R. E. Riefner 2007-9-11 07 -379 Orange City of San Juan Capistrano, vicinity of San Juan Creek road and Paseo Christina. 34 Comment
  SD187363  Pseudognaphalium leucocephalum R. E. Riefner Jr. 2007-3-21 07 157 Orange San Juan Capistrano, vicinity of Calle Arroyo/Paseo Esteban at San Juan Creek. 31 Comment
  SD263581  Pseudognaphalium leucocephalum Jim Riley 2013-10-15 122 Orange San Clemente area; 0.56 miles ESE intersection Avenida Pico and Camino La Pedriza; just N San Diego County line 68 Comment
  UC2027329  Pseudognaphalium leucocephalum Robert Lee Allen 2012-8-11 Orange Santa Ana Mts, Caspers Wilderness Park, Bell Canyon. Comment
  UCSB52423  Pseudognaphalium microcephalum Roberts, Jr., Fred 1982-9-15 Orange Rancho Mission Viejo; 6.4 km. ENE San Juan capistrano by road on Rte. 74; 0.9 km. NNE Viejo Peak 93 Comment
  JEPS20432  Pseudognaphalium ramosissimum L. M. Booth 1932-7-27 1321 Orange Corona del Mar Comment
  CAS-BOT-BC357570  Pseudognaphalium stramineum Ira L. Wiggins 1966-3-18 20533 Orange Experimental Garden behind greenhouse, California State College at Fullerton Comment
  IRVC15160  Pseudosasa japonica D. Van Gorden 1965-5-9 Orange Silverado Canyon. Santa Ana Mountains Comment
  RSA5343  Pseudotsuga macrocarpa B. D. Stark 1933-1-4 4493 Orange Bottom of Claymine Canyon. No. end of Santa Ana Mts. 305 Comment
  UCR269240  Psilotum nudum R. E. Riefner Jr. 2015-11-22 15- 453 Orange South Coast, city of Costa Mesa, east side of Orange County Fairground, Lot #A-5, west of Newport Blvd. and north of Fair Drive 32 Comment
  MACF025734  Psilotum nudum C. Eugene Jones 1988-10-31 Orange Grown in CSUF greenhouse complex Comment
  UCR192483  Pterostegia drymarioides A. C. Sanders, Fred M. Roberts 2008-3-25 34510 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  IRVC29815  Pulicaria paludosa Mary H. White 2006-9-23 92306 1 Orange San Joaquin Marsh Freshwater Marsh, UC Natural Reserve; SW edge, along San Diego Creek, N of University Drive, E Hwy 73. Southern Coastal 2 Comment
  SD173186  Pulicaria paludosa Brant Primrose 2003-6-30 Orange Intersection of Bonita Canyon Drive and Culver Drive 241 Comment
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Nov 24 2010
  UCR116013  Pulicaria paludosa George K. Helmkamp, E. A. Helmkamp 2000-10-18 6230 Orange Newport Bay, South side of the back bay. 6 Comment
  UCR174206  Pulicaria paludosa A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33059 Orange Peninsular Range; Santa Ana Mtns., San Juan Canyon, from Lower San Juan Picnic Area to c. 1 mile downstream, parallel to Hwy 74 and near Riverside Co. line 396 Comment
  UCR53764  Pulicaria paludosa Bonnie Busenberg, W. Wisura 1987-7-23 4170 Orange Newport Bay at junction of Back Bay Drive and San Joaquin Hills Road Comment
  UCSB52444  Pulicaria paludosa Roberts, Fred; Ferren, Wayne 1982-7-21 Orange Newport Beach; Upper Newport Backbay, near jct. of Back Bay Dr. and San Joaquin Hills Rd., 2.6 km. E Newport Harbor High School Comment
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Dec 12 2018
  RSA221064  Pyrus communis E. W. Lathrop 1966-4-18 6176 Orange Santa Ana Mountains, 4 miles northeast of Lake Irvine, Black Star Canyon, Cleveland National Forest, Trabuco District. Comment
  UCD47667  Quercus X acutidens G. A. Marsh 1980-5-8 s.n. Orange Crystal Cove State Park: Moro Canyon. Comment
  UCD47714  Quercus X acutidens John M. Tucker 1941-5-30 255 Orange Low shrub, in San Juan Canyon, 200 yards west of San Juan Guard Station, Highway 74, Orange County, California. Comment
  UCSB52413  Quercus X acutidens Roberts, Fred 1981-11-15 Orange Santa Ana Mtns.: San Juan Canyon, Hwy 74, across road from entrance to Lower San Juan Picnic Ground 436 Comment
  UCSB52415  Quercus X acutidens Roberts, Fred 1981-11-15 Orange Santa Ana Mtns.: San Juan Canyon, Rte. 74, 0.5km by road SW Lower San Juan Picnic Ground, 425 Comment
  RSA759120  Quercus X morehus Robt. Allen, Richard Newell 2007-6-19 s.n. Orange Upper Silverado Canyon, along Maple Springs Truck Trail, 5.7 road miles up from Maple Springs forest gate, 0.8 road miles down fron junction with Main Divide Truck Trail. Near entrance to short road spur 1311 Comment
  IRVC1323  Quercus agrifolia Gail Howard 1965-5-2 s.n. Orange Newport Beach: Back Bay Hills. Southern Coastal Comment
  RSA171930  Quercus berberidifolia Robert F. Thorne 1963-7-26 32828 Orange Santa Ana Mts., Cleveland National Forest, Trabugo District. 1189 Comment
  RSA590958  Quercus berberidifolia Fred M. Roberts, Karlin G. Marsh 1991-4-10 4766 Orange Laguna Beach: South Laguna, Temple Hill, ridge between upper Hobo Canyon and Aliso Gorge, 1.7 km NW Niguel Hill summit. 213 Comment
  RSA590959  Quercus berberidifolia Fred M. Roberts, Karlin G. Marsh 1991-4-10 4765 Orange Laguna Beach: South Laguna, Temple Hill, ridge between upper Hobo Canyon and Aliso Gorge, 1.7 km NW Niguel Hill summit. 213 Comment
  RSA663280  Quercus berberidifolia R. E. Riefner Jr. 2000-6-22 20 -572 Orange NCCP North Ranch Policy Plan Area, NE property; along National Forest boundary, at powerline. 756 Comment
  RSA7679  Quercus berberidifolia Carl B. Wolf 1933-11-8 5537 Orange Trabuco Canyon along the Trabuco Truck trail Canyon. 915 Comment
  UCSB58638  Quercus berberidifolia Muller, Cornelius 1953-5-2 Orange Swain Canyon, lower end, Santa Catalina Island Comment
  UCSB58639  Quercus berberidifolia Muller, Cornelius 1953-5-2 Orange Swain Canyon, lower end, Catalina Island Comment
  IRVC24554  Quercus dumosa Fred M. Roberts 1987-8-6 3580 Orange San Joaquin Hills: Pelican Hill; E slope above Los Trancos Canyon; 0.4km ESE Pelican Hill survey mark. Southern Coastal 200 Comment
  UCSB52416  Quercus dumosa Roberts, Fred 1982-6-30 Orange Laguna Niguel; Niguel Hill, above Pacific Island Dr., 1.9 km. SE Aliso Peak; 1.1 km. E Bench Mark 133 223 Comment
  RSA0059078  Quercus dumosa CNPS Accuracy Assessment Team 2014-7-10 3266 .1 Orange Buck Gully. Comment
  UCR117575  Quercus ilex Y. Moore 2000-2-1 s.n. Orange City of Orange, N end of Yorba St. at Santiago Creek, near Chapman Ave. crossing 79 Comment
  IRVC19904  Quercus lobata Gordon A. Marsh, Karlin G. Marsh 1983-7-15 s.n. Orange San Joaquin Hills, Upper Shady Canyon. Southern Coastal Comment
  CAS-BOT-BC383076  Quercus suber R. E. Riefner, Jr. 2005-4-15 05 -206 Orange City of Yorba Linda, Yorba Linda Regional Park along East La Palma Ave., W of Yorba Linda Blvd; Parking Lot #1 89 Comment
  CAS-BOT-BC104666  Quercus wislizeni Carl B. Wolf 1933-10-8 55339 Orange Santa Ana Mts. Main divide motorway, NW side of Trabuco Peak 1310 Comment
  RSA716771  Quercus wislizeni Fred M. Roberts, Michelle Balk, Robert Allen, Carol Roberts 2004-7-18 6076 Orange Santa Ana Mtns.: Upper Trabuco Cyn. along Trabuco Cyn. Trail, 1.3km NE Los Pinos Pk. and c.a. 0.25km by trail from Main Divide Truck Trail. 1245 Comment
  RSA702991  Rafinesquia californica D. E. Bramlet, Fred M. Roberts 2003-3-13 3331 Orange Donna O'Neill Reserve. North East ridge of the reserve, 915m W of Cristianitos Rd. & 1.2km N of the E-W access road. 195 Comment
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Nov 7 2010
  RSA750068  Rafinesquia californica A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35326 Orange Weir Canyon, 0.3 mi. west of Eastern Transportation Corridor (Hwy 241) and 1.45 mi. east of south end of Walnut Canyon Reservoir 335 Comment
  UCR194557  Rafinesquia californica A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35326 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 0.3 mi. west of Eastern Transportation Corridor (Hwy 241) and 1.45 mi. east of south end of Walnut Canyon Reservoir 335 Comment
  IRVC14751  Rafinesquia californica A. S. Boughey 1968-4-16 242 Orange Santiago Canyon/Lower Modjeska Cyn, Fleming Property. Santa Ana Mountains Comment
  POM293  Ranunculus californicus D. L. Crawford s.n. Orange Near Laguna Beach Comment
  RSA734146  Ranunculus californicus R. H. McArthur 1934-3-3 s.n. Orange Forks of laguna Canyon Comment
  POM6265  Ranunculus hebecarpus P. A. Munz, L. T. Street, G. Williams 1919-5-3 2630 Orange Santa Ana River Canyon. Comment
  IRVC1161  Raphanus sativus L. Stilgenbauer 1965-4-10 Orange Corona del Mar, 339 Milford Dr.; in canyon. Newport Beach Comment
  CAS-BOT-BC74227  Raphanus sativus Ira L. Wiggins 1966-2-12 20433 Orange North side of La Palma Avenue, near Harbor Boulevard, Anaheim. Comment
  OBI30177  Raphanus sativus T. W. Niilus 1970-2-14 N 16 Orange 1 mi E of Yorba Linda on Imperial hwy on road cut 91 Comment
  RSA0023267  Raphanus sativus R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49780 Orange Santa Ana Mountains: Trabuco Canyon Comment
  RSA658474  Raphanus sativus J. Berkley 1994-4-19 5 Orange Yorba Linda, off Bastuchury Rd. about 50 yds from Casa Loma Ave. Comment
  CDA3879  Reseda odorata E. Dudley 1951-4-2 Orange Costa Mesa. 0 Comment
  UCR125475  Rhamnus alaternus Roger E. Reinke 2003-2-18 s.n. Orange South Coast, Newport Back Bay, Big Canyon 30 Comment
  RSA734887  Rhamnus californica subsp. californica A. C. Sanders 2008-5-28 35441 Orange Lomas de Santiago, Bee Flat at mouth of Limestone Canyon. 264 Comment
  CAS-BOT-BC56025  Rhamnus ilicifolia P. C. Everett 1935-6-17 7138 Orange Santa Ana Mts., Coldwater Canyon, 1.2 mi. above Glen Ivy Resort 457 Comment
  CAS-BOT-BC56036  Rhamnus ilicifolia C. B. Wolf 1931-3-6 1845 Orange 1/2 mile above Trabuco Oaks, Trabuco Canyon, west slope of the Santa Ana Mts. 457 Comment
  CAS-BOT-BC56039  Rhamnus ilicifolia C. B. Wolf 1931-3-6 1845 Orange 1/2 mile above Trabuco Oaks, Trabuco Canyon, west slope of the Santa Ana Mts. 457 Comment
  LA207818  Rhamnus ilicifolia P. C. Everett; 1935-6-17 7138 Orange Santa Ana Mountains, Coldwater Canyon, 0.5 mi. above Glen Ivy Resort 457 Comment
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Jan 23 2015
  RSA463  Rhamnus ilicifolia J. T. Howell 1927-7-24 465 Orange Claymine Canyon near Sierra Peak. 152 Comment
  RSA5340  Rhamnus ilicifolia B. D. Stark 1933-1-4 4492 Orange Bottom of Claymine Canyon. No. end of Santa Ana Mts. 305 Comment
  SD247724  Rhamnus ilicifolia R. F. Thorne, E. W. Lathrop, W. Wisura. 1977-7-8 49360 Orange Santa Ana Mountains: San Juan Canyon, along Ortega Highway (74) across from San Juan Fire Station. Comment
  UC592699  Rhamnus ilicifolia P. C. Everett 1935-6-19 Orange 2 mi below Forest Service Patrol Station; Santa Ana Mts., Trabuco Canyon 365 Comment
  UCR234142  Rhamnus ilicifolia Dick Newell, Judy Booth 2012-3-30 242 Orange Peninsular Range; Santa Ana Mtns., Maple Springs Road, Cleveland National Forest 258 Comment
  UCR241912  Rhamnus ilicifolia Fred M. Roberts 2012-5-10 7562 Orange Peninsular Ranges; Coastal Foothills, San Joaquin Hills, south fork of Buck Gully, north slope Pelican Hill, 0.6 km N summit Pelican Hill, north of Pelican Hill Drive 183 Comment
  UCSB48075  Rhamnus ilicifolia Roberts, Fred 1981-4-11 Orange Santa Ana Mtns., San Juan Canyon, Hwy 74, 2.4km ENE San Juan Guard Station; 0.3km W Bench Mark 1100 315 Comment
  RSA17492  Rhus integrifolia Ramon Valverde 1936-8-31 8237 Orange Rancho Santa Ana Botanic Garden.Wild plants in Pine Canyon. Comment
  RSA451  Rhus integrifolia J. T. Howell 1927-6-16 147 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA678717  Rhus integrifolia Fred M. Roberts, Laura Cohen 2000-3-24 5271 Orange Rancho Mission Veijo Land Conservancy: Tributary to Christanitos Cyn., Flagpole Meadow, upper shady Canyon Trail, about 1.6 NW Sycamore Gate. 170 Comment
  SEINET10692867  Rhus integrifolia Karen M. Meyer, Andrew Townesmith; Tracy Scott 2007-3-10 Meyer 8 Orange Cleveland National Forest, 3 mi. N. Main Divide Rd./NF3S04, off Hwy. 74. 950 Comment
  UCD116869  Rhus integrifolia Ronni Stachelek; Bob Anderson, Frances Schropshire 1995-3-1 36 Orange Newport Beach, W side Upper Newport Bay adjacent to Santa Ana Delhi Channel, ca. 100 m. W of footbridge. Comment
  CLARK-A1528-117  Rhus laurina Cesareo Perez 1971-5-4 1 Orange Villa Park Comment
  SEINET12240101  Rhus laurina S. A. Thompson, Rawlins, J. E. 1988-8-27 5257 Orange Cleveland National Forest, 3.8 mi E of San Juan Hot Springs on CA 74 370 Comment
  HSC3149  Rhus ovata S. M. Clapp 1966-4-10 30 Orange 4 mi. into Black Star Canyon 183 Comment
  IRVC84  Rhus ovata A. S. Boughey 128 Orange [San Juan Canyon], Ortega Hwy, 1mi E San Juan Guard Sta. Santa Ana Mountains Comment
  RSA13147  Rhus ovata Percy C. Everett 1935-6-19 7240 Orange Trabuco Canyon, 2 mi. above E Forest Service Patrol Station. 762 Comment
  RSA16710  Rhus ovata C. B. Wolf 1934-9-21 6138 Orange Silverado Canyon, at base of Silverado motorway, W slope Santa Ana Mountains. 732 Comment
  RSA731004  Rhus ovata Fred M. Roberts, B. Allen, D. Olsen 2007-1-19 6506 Orange Beek s Place along Main Divide Rd., 4.1 km NW Pleasant Peak. Abandoned homestead with persistant conifer plantings, some species spreading into surrounding chaparral. 852 Comment
  SD253897  Rhus ovata Jim Riley 2013-12-10 132 Orange San Clemente area; 0.29 miles E intersection Avenida Pico and Camino La Pedriza; just N San Diego County line 74 Comment
  UCSB41759  Rhus ovata Miller, Marsha 1965-1-15 Orange Trabuca Canyon road to lower camp ground Comment
  RSA797918  Ribes amarum Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49829 Orange Santa Ana Mountains: Trabuco Canyon, ca. 8 km east of Trabuco Oaks 860 Comment
  UC1127382  Ribes californicum var. hesperium A. Lewis May 1934 422 Orange Trabuco Canyon Cleveland National Forest, Elsinore Quadrangle Comment
  RSA648661  Ribes californicum var. hesperium R. E. Riefner Jr. 2000-8-8 20 -720 Orange NCCP North Ranch Policy Plan Area. NE property; E slope of upper Fremont Cyn.; S of Donaldson Ranch area and S of powerline / National Forest boundary. 454 Comment
  CAS-BOT-BC173128  Ribes indecorum C. B. Wolf 1931-3-6 1861 Orange 1 mile north of base of Modjeska Grade, west slope of the Santa Ana Mts. 304 Comment
  UC484197  Ribes indecorum B. D. Stark 1930-2-21 1475 Orange Black Star Creek 457 Comment
  RSA0021661  Ribes indecorum J. D. Olmsted 1960-2-22 1103 Orange Drainage area to Black Star Canyon. Near CP at Beacon Pines Ranch. 854 Comment
  SBBG52710  Ribes malvaceum C. Davidson 1977-5-18 5623 Orange Bear Springs, Santa Ana Mtns 1219 Comment
  UCD169741  Ribes malvaceum var. viridifolium R. F. Thorne; C. W. Tilforth, E. W. Lathrop 1977-4-27 49706 Orange Northern Santa Ana Mountains: Sierra Peak. 899 Comment
  UCR241071  Ribes malvaceum var. viridifolium Dick Newell, Judy Booth 2013-3-24 323 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, on Maple Springs Rd./Silverado Cyn. Rd., 1.5 miles above Maple Springs gate 673 Comment
  CHSC116481  Ribes malvaceum var. viridifolium R. F. Thorne; C. W. Tilforth, E. W. Lathrop 1977-4-27 49706 Orange Northern Santa Ana Mountains: Sierra Peak. 899 Comment
  RSA30506  Ribes speciosum B. D. Stark 1930-1-28 11209 Orange Claymine Canyon, Santa Ana Mts. 213 Comment
  RSA658211  Ribes speciosum T. A. Daubert 1991-5-19 661 Orange Tucker Wildlife Sanctuary, Modjeska Canyon inside sanctuary. Comment
  RSA734161  Ribes speciosum Keith E. Hoffmaster 1931-4-22 520 Orange Santa Ana Mts. Comment
  RSA797435  Ricinus communis Keith E. Hoffmaster 1935-2-17 s.n. Orange Near Costa Mesa Comment
  UCR239872  Ricinus communis O. F. Clarke 2004-3-22 s.n. Orange Santa Ana River Canyon, Santa Ana River on the west side of Featherly Park 110 Comment
  UC117965  Romneya coulteri Mollie Bryan 1901-1 Orange Orange Comment
  RSA741720  Romneya coulteri R. E. Riefner 2008-3-20 8 -106 Orange Irvine Ranch Reserve, Fremont Canyon Conservation Easement, W fork Fremont Canyon, S Donaldson Ranch area. 380 Comment
  SD255234  Romneya coulteri R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49767 Orange Santa Ana Mountains: Trabuco Canyon. Comment
  JEPS53807  Rorippa nasturtium-aquaticum Alice King 1908-1 Orange Santa Ana Comment
  RSA449735  Rosa californica F. R. Fosberg 1931-6-21 S 5132 Orange Silverado Canyon. Santa Anita Mts. Comment
  UCR192981  Rosa californica A. C. Sanders, Fred M. Roberts 2008-6-17 35481 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Agustine staging area near Limestone Canyon Rd. gate at Santiago Cyn Rd. 260 Comment
  UCD125433  Rosmarinus officinalis A. C. Sanders 1990-10-6 10220 Orange Newport Bay, North Star County Beach area on the SW end of the bay, ca. 2 km inland of Hwy 1. 1 Comment
  UCR128315  Royena lycioides subsp. lycioides A. C. Sanders, Mark A. Elvin 2003-10-12 27331 Orange Southern Coastal Slope, Irvine, UCI Arboretum, UCI campus near intersection of Jamboree Blvd. and Campus Dr. 15 Comment
  UCR141339  Rubus discolor Robert DeRuff 1990-6-3 397 Orange Southern Coast, Newport Beach, Newport Back Bay, Big Canyon, bank below the Newporter Apartments 8 Comment
  RSA699216  Rubus ursinus R. H. McArthur 1934-2-27 s.n. Orange Santa Ana River at 1st Street Comment
  RSA0035069  Rubus vitifolius K. Kneen 1933-4-8 s.n. Orange Pacific Palisades. Comment
  UC1292604  Rumex crispus C. L. Hitchcock and C. V. Muhlick 1964-3-17 23072 Orange 8 mi e Yorba Linda; Santa Ana Canyon Comment
  RSA4501  Rumex hymenosepalus Carl B. Wolf 1932-3-15 2712 Orange 1 mi. W of Atwood, lower end of Santa Ana Canyon. 76 Comment
  UCR193385  Rumex salicifolius A. C. Sanders, T. B. Salvato 2008-5-13 35386 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Canyon above (S of) mouth of Hangman Tree Canyon, just below Modjeska Canyon confluence 366 Comment
  JEPS39862  Rumex salicifolius var. salicifolius Lawrence M. Booth 1932-7-4 1245 Orange Newport Bay Comment
  UCR258623  Rumex stenophyllus Fred M. Roberts 2014-7-25 7884 Orange South Coast, SAN JOAQUIN HILLS: Upper Laguna Canyon, Laguna Lake 1 (Upper Laguna Lake), north basin, c.a. 5.1 kn ENE summit Signal Hill. Laguna Coast Wilderness Park 113 Comment
  HSC25555  Ruppia maritima James Henrickson 1970-7-24 5023 Orange 3 mi. NW of Huntington Beach, Inner Bolsa Bay, along margins of bay 0 Comment
  POM202047  Salicornia bigelovii L. M. Booth 1932-12-13 1376 Orange Newport Bay. Comment
  SD72734  Salicornia bigelovii F. R. Fosberg 1931-8-19 7286 Orange Salt marsh, Newport Bay. Comment
  UCR234135  Salicornia bigelovii Dick Newell 2011-10-2 220 Orange South Coastal Plain, Newport Back Bay, near Big Canyon parking area off Back Bay Dr. 0 Comment
  UCR25846  Salicornia bigelovii Wayne R. Ferren 1980-8-27 2329 Orange South Coast, west side of Backbay Drive, c. 1.5 km northeast of Hwy 1, along channel of Newport Backbay, Newport Beach. Comment
  SFV20020  Salicornia depressa A. Dittmer, S. Dark 2004-10-3 75 Orange Bolsa Chica wetlands. South side of public parking lot off Highway 1. Comment
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Feb 9 2020
  JEPS73723  Salicornia subterminalis L. R. Heckard with T. I. Chuang and R. Bacigalupi 1968-7-16 2046 Orange just s. Bolsa Chica State Park (Salt Marsh (s. end of Bolsa Bay)); Bolsa Bay Comment
  UC466068  Salicornia virginica D. L. Crawford 739 Orange Laguna Beach Region Comment
  RSA5874  Salicornia virginica C. B. Wolf 1932-9-13 4026 Orange Bryant Ranch: Triangle of waste ground S of Bryant Ave., & 1/2 mi. west of Los Alamitos Blvd., (Triangle waste ground at NW corner of SW 1/4 sect. 30 T4S R11W) 8 Comment
  RSA6450  Salix exigua Carl B. Wolf 1932-4-15 2953 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Canyon. 120 Comment
  SJSU255  Salix exigua C. B. Wolf 1932-4-15 2953 Orange S of pear orchard Rancho Santa Ana near Santa Ana R, Santa Ana Canyon 121 Comment
  LA208645  Salix exigua var. hindsiana Robert G. Engman; sn Orange San Clemente, San Juan Capistrano wash, near sea, 0 Comment
  RSA6451  Salix gooddingii Carl B. Wolf 1932-4-15 2955 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Canyon. 120 Comment
  RSA0034661  Salix hindsiana var. leucodendroides Carl B. Wolf 1932-4-15 2954 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Canyon. 120 Comment
  LA208700  Salix laevigata Carl Hedin; Joseph Ewan 1933-3-19 7686 Orange Santa Ana River 8 km below Prado (Rincon) [Area 7] Comment
  LA210261  Salix laevigata Lawrence M. Booth; 1932-12-16 1380 Orange Santa Ana River, W of Wolfe's Ranch, 0.5 mi from ocean Comment
  RSA6453  Salix laevigata Carl B. Wolf 1932-4-8 2949 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Canyon, at southeast corner of pear orchard. 120 Comment
  RSA735353  Salix laevigata R. H. McArthur 1934-3-1 s.n. Orange Santa Ana River at 1st Street. Comment
  UC492485  Salix laevigata Carl B. Wolf 1932-4-8 2949 Orange near Santa Ana River, at s.e corner of pear orchard Rancho Santa Ana; Santa Ana Canyon, Rancho Santa Ana 120 Comment
  UCR193034  Salix laevigata A. C. Sanders, Mitch Provance 2008-5-20 35425 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago area, Santiago Creek Canyon, c. 3/4 mile below Modjeska Canyon confluence 355 Comment
  UCR279478  Salix laevigata Robert DeRuff 2012-3-12 576 B Orange South Coast, Newport Beach, Shellmaker Island, 0.08 mi. west of Back Bay Drive 2 Comment
  UCSB52458  Salix laevigata Roberts, Fred; Allen, R. 1982-7-4 Orange Chino Hills: Carbon Canyon, Carbon Canyon Rd., 0.6km by road SW county line; 2.3km NNW Gilman Peak 76 Comment
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Oct 28 2018
  POM362784  Salix lasiolepis Louis C. Wheeler 1934-1-14 2365 Orange Aliso Creek near Laguna. 76 Comment
  RSA542509  Salix lasiolepis Fred M. Roberts Jr., W. R. Ferren 1987-4-8 3357 Orange Newport Beach: Upper Newport Back Bay, west side, North Star Beach, 0.8 km N Coney Island. 0 Comment
  UC1618070  Salix lasiolepis Donald G. Nelson 1935-7-6 205 Orange San Juan Canyon Comment
  CHSC101731  Salix lucida subsp. lasiandra R. E. Riefner Jr. 2008-5-20 08 -108 Orange Irvine Ranch Reserve, North Irvine Ranch, S Donaldson Ranch ca. 0.75 mi along W fork of upper Fremont Canyon. UTM: 11S 0436554E 3742750N. 404 Comment
  RSA737855  Salix lucida subsp. lasiandra R. E. Riefner 2008-5-20 8 -108 Orange Irvine Ranch Reserve, North Irvine Ranch, S Donaldson Ranch ca. 0.75 mi along West Fork of upper Fremont Canyon. 405 Comment
  RSA0005848  Salix nigra var. vallicola L. R. Abrams 1903-4-16 3256 Orange Santa Ana River, near Orange Comment
  SEINET4466838 Image available Salix nigra var. vallicola L. R. Abrams 1903-1 3256 Orange Comment
  CAS-BOT-BC126305  Salix sessilifolia Carl B. Wolf 1932-3-16 2715 Orange Rancho Santa Ana, Santa Ana River bottom 121 Comment
  CAS-BOT-BC403759  Salpichroa origanifolia E. L. Paddock 1943-5-19 12747 Orange 1 mile east of Brea Comment
  CAS-BOT-BC176840  Salsola australis Ira L. Wiggins 1965-10-18 20271 Orange Vacant lot at corner of Chapman Street and Victor Drive, Fullerton Comment
  CDA23060  Salsola australis Mark A. Elvin, D. G. Kelch 2006-12-9 5295 Orange Southern Coastal; Newport Backbay; Big Canyon, lower end. Comment
  CAS-BOT-BC176974  Salsola tragus Ira L. Wiggins 1966-2-12 20436 Orange N. side of La Palma Avenue near Harbor Boulevard, Anaheim Comment
  RSA728672  Salsola tragus R. E. Riefner 2007-1-20 7 -16 Orange City of Lake Forest, along Bake Pwky. at Dimension Rd. 217 Comment
  RSA411337  Salvia apiana N. C. Cooper 1949-5-1 3944 Orange San Juan Canyon. 457 Comment
  RSA5384  Salvia apiana B. D. Stark 1932-12-30 1705 Orange Rancho Santa Ana, 1/4 mile W of Roundtop. 457 Comment
  RSA663  Salvia apiana J. T. Howell 1927-6-3 s.n. Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA0006683  Salvia apiana J. T. Howell 1927-6-1 5 Orange Botany Garden, Rancho Santa Ana. [original location] 152 Comment
  RSA542481  Salvia columbariae Fred M. Roberts 1988-3-15 3873 Orange Rancho Mission Viejo: Central Gabio Canyon, 7.0 km E Playa Survey Marker. 162 Comment
  RSA697878  Salvia columbariae Dorothy Sammis s.n. Orange Orange County park. Comment
  UC1607999  Salvia columbariae Donald G. Nelson 1935-3-23 177 Orange Hills n of Fullerton (Chia); Chia Comment
  CAS-BOT-BC233670  Salvia leucophylla C. B. Wolf 1943-6-8 11449 Orange Rancho Santa Ana Botanic Garden 198 Comment
  RSA434097  Salvia leucophylla M. B. Dunkle 1933-5-30 3567 Orange Carbon Canyon Comment
  RSA587882  Salvia leucophylla Fred M. Roberts 1990-5-8 4617 Orange Chino Hills: Soquel Canyon, c. 1.2 km NNW of Gilman Peak. 240 Comment
  RSA658203  Salvia leucophylla T. A. Daubert 1991-5-19 655 Orange Tucker Wildlife Sanctuary, Modjeska Canyon inside sanctuary. Comment
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Dec 1 2016
  HSC14369  Salvia mellifera J. J. Wagoner 1965-4-11 17 Orange 4 mi. N of Modjeska Canyon off Irvine Rd. near Irvine Lake Comment
  RSA294797  Salvia mellifera Lyman Benson 1946-5-13 12098 Orange Corona del Mar, Pacfic Ocean drainage area 50 Comment
  RSA434144  Salvia mellifera E. A. McGregor 1964-6-4 s.n. Orange On Highway 74, between Elsinor and San Juan Capistrano. 915 Comment
  RSA657744  Salvia mellifera Ken Greby 1985-4-18 16 Orange alongside Laguna Canyon Rd. 100 m. N of L. C. R., 2.5 km. NE of El Toro Rd. 53 Comment
  RSA733967  Salvia mellifera Keith E. Hoffmaster 1927-4-8 424 Orange Santa Ana Mountains. Comment
  UCR102017  Salvia mellifera B. G. Pitzer 1997-3-25 3020 Orange San Joaquin Hills, Crystal Cove State Park, Pelican Point Area, grassland between Pacific Coast Hwy and the bike trail 30 Comment
  UCR131892  Salvia mellifera J. Mallory, V. McCoy 1995-7-3 6454- 127 Orange Santa Ana Mountains: Blind Canyon, c. 0.5 mi. NE of confluence w/ Santiago Canyon Wash; north of Irvine Lake. 300 Comment
  CLARK-A1528-589  Salvia spathacea Danny Sall 1970-4-25 3 Orange Silverado Canyon Comment
  UC1936222  Salvinia minima R. E. Riefner Jr. 2008-7-9 08 -219 Orange City of Laguna Beach, bluff area W of West Street and Pacific Coast Highway 4 Comment
  POM201930  Sambucus mexicana L. M. Booth 1932-5-27 s.n. Orange Newport Bay. Comment
  RSA751420  Sambucus mexicana A. C. Sanders, Fred M. Roberts 2008-7-3 35691 Orange Weir Canyon, along Windy Ridge Rd. at hairpin turn/road junction below huge sandstone boulder (visible on Google Earth), 1.2 mi. SE of Walnut Canyon Reservoir 275 Comment
  UC1125331  Sambucus mexicana A. Lewis May 1934 421 Orange Trabuco Canyon Cleveland National Forest, Elsinore Quadrangle 1341 Comment
  UC1125355  Sambucus mexicana A. Lewis Mar 1934 335 Orange Santa Ana Canyon Corona Quadrangle Comment
  CAS-BOT-BC238830  Sambucus nigra subsp. caerulea Carl B. Wolf 1931-7-25 2293 Orange Above the irrigation canal, just no. of the Mexican houses, Rancho Santa Ana, Santa Ana Canon [Canyon] 121 Comment
  RSA640718  Sambucus nigra subsp. caerulea L. C. Wheeler 1931-8-16 s.n. Orange Santa Ana River 152 Comment
  UCD137210  Sambucus nigra subsp. caerulea Ronni Stachelek; Bob Anderson, Frances Schropshire 1995-3-1 41 Orange Newport Beach, West side Upper Newport Bay adjacent to Santa Ana Delhi Channel, ca. 100 m west of footbridge. Comment
  UCR241900  Sambucus nigra subsp. caerulea Fred M. Roberts 2012-4-24 7519 Orange Peninsular Ranges; Coastal Foothills, San Joaquin Hills, Buck Gully, tributary canyon below San Joaquin Hills Road and 2.0 km W Signal Peak 167 Comment
  POM186292  Samolus parviflorus Joseph A. Ewan 1932-7-29 7716 Orange Bolsa Chica near Huntington Beach. Comment
  RSA588796  Sanicula arguta Fred M. Roberts, Dave Bontrager 1990-4-18 4564 Orange Rancho Mission Viejo: ridge between Christianitos and Gabino Canyons (Riverside Cement Lease Holding), 5.5 km SE Playa Survey Marker. 152 Comment
  RSA681945  Sanicula arguta Fred M. Roberts, D. E. Bramlet 2003-3-13 5574 Orange Donna O Neill Land Conservancy: Ridge west of Christianitos Canyon, 1.6 km NW Sycamore Gate. 197 Comment
  RSA590944  Sanicula arguta Fred M. Roberts 1991-5-2 4783 Orange San Joaqui Hills, Laguna Canyon, Laguna Laurel, Just W of Laguna Canyon Road, 2km N jct El Toro Road, 4.5km E Signal Peak. 110 Comment
  RSA734645  Sanicula bipinnatifida A. C. Sanders, Fred M. Roberts 2008-3-25 34569 Orange Peninsular Range; Santa Ana Mtns.: Saddle on ridge near head of Weir Canyon, 5.3 miles ENE of Villa Park, 3.1 mi. N of (Santiago Reservoir) Irvine Lake. 405 Comment
  RSA749317  Sanicula bipinnatifida Fred M. Roberts, Linda Farley 2008-3-28 6819 Orange Santa Ana Mtns.: Upper Weir Cyn., east fork along ridge just west of SR241, 3.4 km E Robber s Peak, Irvine Land Conservancy. 437 Comment
  RSA749638  Sanicula bipinnatifida D. E. Bramlet 2008-4-28 4247 Orange East Fort of Upper Weir Cyn., on the north side of the existing access road. The site is found 1.22km east of the main Cyn. & 122m west of the upper boundary of Gypsum Cyn. 406 Comment
  UCR209376  Sanicula bipinnatifida Fred M. Roberts, Linda Farley 2008-3-28 6819 Orange Santa Ana Mountains, Upper Weir Canyon, Irvine Ranch Conservancy, east fork along ridge just west of SR 241, 3.4 km east of Robber's Peak 437 Comment
  RSA48923  Sanicula crassicaulis P. A. Munz 1949-5-26 13380 Orange Head of Sierra [Freemont] Canyon, Santa Ana Mountains. 732 Comment
  RSA794245  Sanicula crassicaulis Doris Hoover Bowers 1971-4-19 1688 Orange Black Star Canyon Indian Site 762 Comment
  SBBG40420  Sanicula crassicaulis J. Ingram 1960-3-29 264 Orange 2 mi above O'Neill Park, Trabuco Cyn Comment
  RSA609760  Sarcocornia pacifica L. C. Wheeler 1946-9-28 6384 Orange Newport Bay. Comment
  SD37460  Sarcocornia pacifica Edith A. Purer 1932-8-31 4876 Orange Moist location on sand dunes. Comment
  SD41969  Satureja chandleri Darley F. Howe 1947-4-29 1555 Orange San Juan Creek Comment
  SD126645  Scandix pecten-veneris Kathy Harper 1989-4-8 Orange Ronald W. Caspers Wilderness Area, Bell Canyon Trail. 149 Comment
  RSA650238  Schinus molle R. Spence 1974-7-27 s.n. Orange Mission Viejo Comment
  UCR43573  Schinus terebinthifolius B. A. Prigge 1983-12-17 5520 Orange Santa Ana Marsh and adjacent lowlands. SE-most part of oil field just north of Pacific Coast Hwy between remnant Santa Ana River channel and dirt road 2 Comment
  UCR66991  Schinus terebinthifolius A. C. Sanders 1990-10-6 10201 Orange South Coast, Newport Back Bay, SW side at North Star County Beach, SW end of the bay, c. 2 km inland from Hwy 1/ Pacific Coast Hwy 3 Comment
  IRVC21660  Schismus barbatus R. L. Allen, Fred M. Roberts, Jr. 1982-7-4 A 672 Orange Chino Hills: Carbon Canyon, Carbon Canyon Rd. (State Hwy 142), 1.1 - 1.5 mi SW of the San Bernardino County line. Santa Ana Mountains Comment
  UCSB48076  Schismus barbatus Fritzke, Sue; Roberts, Fred 1982-4-3 Orange Dana Point; hills, 1.0 km. N Dana Hills High School; 1.9 km. W Marco Forster Junior High School 100 Comment
  CAS-BOT-BC111475  Schoenoplectus americanus John Thomas Howell 1927-6-30 2620 Orange Mucky soil of canal bank alkaline coastal plain, 7 mi east of Long Beach. 15 Comment
  RSA735750  Schoenoplectus americanus A. C. Sanders, Fred M. Roberts 2008-6-17 35493 Orange Lomas de Santiago, West Loma Ridge Spur Road c. 0.8 mi SW of Irvine Lake and 0.9 mi. SE of Sheriff s Training Facility, just east of Hwy 241 280 Comment
  POM18286  Schoenoplectus californicus I. M. Johnston 1924-7-10 s.n. Orange Laguna Canyon. Comment
  RSA0058188  Schoenoplectus californicus Fred M. Roberts 2014-4-21 7872 Orange South Coast: San Joaquin Hills: Upper Laguna Lake 1 (upper Laguna Lake), south basin. 113 Comment
  RSA603304  Schoenoplectus californicus Scott D. White, B. Leatherman 1997-6-12 5331 Orange East of San Juan Capistrano: San Juan Creek between Highway 74 bridge and Mission Vieja site, i.e., ca. 2 to 4 mi E of I-15 / Hwy 74 junction. 46 Comment
  CAS-BOT-BC111265  Schoenoplectus californicus Carl B. Wolf 1932-7-7 3862 Orange Bryant Ranch, Bryant Ave, 1/2 mi E of Los Alamitos Blvd., near the town, Comment
  RSA0059073  Schoenoplectus californicus CNPS Accuracy Assessment Team 2014-7-7 9313 Orange San Joaquin Freshwater Marsh Reserve. Comment
  RSA234489  Schoenoplectus maritimus James Henrickson 1970-7-25 5080 Orange 3.5 miles NW of Huntington Beach growing along graded inner slope of East Garden Grove-Wintersburg Flood Control Channel near Bolsa Chica Salt Marsh. At sea level. 0 Comment
  RSA734876  Schoenoplectus maritimus Jeanne Payton 1934-4-10 s.n. Orange Marshes back of Santa Ana County Club. Comment
  RSA791473  Schoenoplectus maritimus Keith E. Hoffmaster 1934-7-15 155 Orange Near Santa Ana Comment
  POM6408  Scirpus acutus var. occidentalis Phillip A. Munz, L. T. Street, G. Williams 1914-5-3 2661 Orange Santa Ana River Canyon. Comment
  UCR193764  Scirpus cernuus A. C. Sanders, Fred M. Roberts 2008-7-3 35708 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along Weir Canyon Rd. 1.2 mi. SSE of Walnut Canyon Reservoir, below Upper Blind Canyon Rd. 212 Comment
  SD253872  Scirpus microcarpus Jim Riley 2013-10-15 117 Orange San Clemente area; 0.56 miles ESE intersection Avenida Pico and Camino La Pedriza; just N San Diego County line 68 Comment
  SDSU11729  Scirpus robustus Thomas A. Zink 1971-4-1 Orange Newport Back Bay near a storm drain exit, about 2.5 miles west of Jamboree Rd. 2 Comment
Read comments
Oct 13 2011
  UCSC000882  Scrophularia californica Peter Kamb 1948-6-19 1097 Orange Holy Jim Canyon, Santa Ana Mts. 610 Comment
  CAS-BOT-BC414243  Searsia lancea R. E. Riefner, Jr. 2014-11-21 14 -391 Orange City of Lake Forest, English Canyon, Aliso Creek, vicinity of Cherry Ave. and Fernbank Ave. 145 Comment
  CAS-BOT-BC240064  Secale cereale Helen D. Geis 1902-3-1 s.n. Orange Foothills Santa Ana Comment
  RSA156020  Selaginella asprella Peter H. Raven 1962-5-18 17755 Orange Santa Ana Mountains: summit of Santiago Peak, Santa Ana Mountains, 1737 Comment
  IRVC3587  Selaginella bigelovii A. S. Boughey 143 Orange [San Juan Canyon], Ortega Hwy, 1mi E San Juan Guard Sta. Santa Ana Mountains Comment
  SEINET179622 Image available Selaginella bigelovii J. T. Howell 1927-7-22 2834 Orange Claymine Canyon Santa Ana Mtns 183 Comment
  OBI34978  Selaginella bigelovii John Thomas Howell 1927-7-22 2834 Orange Claymine Canyon, Santa Ana Mts., Orange County 183 Comment
  CAS-BOT-BC363249  Senecio Mark A. Elvin 2003-8-24 3011 Orange Southern coastal: San Jaquin [Joaquin] Hills, Irvine, UCI, 100m N of the intersection of Shady Canyon Drive and Bonita Canyon Road 72 Comment
  RSA626140  Senecio aphanactis D. E. Bramlet 1998-3-11 2577 Orange UCI campus, on the UCI Ecological Reserve, located on the 303 knoll of the SW ridgeline in the reserve. Approx. 305m SW of Los Trancos Dr. and 92m N or Hwy 73, just above roadcut. 92 Comment
  UCSB52921  Senecio aphanactis Roberts, Fred 1983-3-10 Orange Dana Point Headlands: north of Scenic Dr., 0.5 km W Dana Point Harbor; 0.7km SSW Richard Henry Dana School 79 Comment
Read comments
Dec 12 2018
  POM272076  Senecio californicus Lyman Benson 1932-3-26 3199 Orange Dana Point. 60 Comment
  RSA17009  Senecio californicus P. C. Everett 1936-3-19 7732 Orange Santa Ana Botanic Garden. 183 Comment
  UCR203981  Senecio californicus Fred M. Roberts 2008-3-12 6719 Orange South Coast, Dana Point Headlands Center for Natural Lands Mgmt. Preserve, west side, c. 0.8 km west of Marine Institute, Dana Point Harbor 50 Comment
  RSA0012668  Senecio californicus J. T. Howell 1928-2-25 849 Orange Nolina Canyon, Rancho Santa Ana. 152 Comment
  CAS-BOT-BC333069  Senecio flaccidus var. douglasii John Thomas Howell 1927-6-6 2442 Orange Santa Ana River bottom, Santa Ana Canyon 152 Comment
  UCSB48048  Senecio flaccidus var. douglasii Roberts, Fred 1981-11-15 Orange Santa Ana Mtns.: San Juan Canyon, Hwy 74, across road from entrance to Lower San Juan Picnic Ground 436 Comment
  RSA0124181  Senecio flaccidus var. douglasii M. B. Dunkle 1934-3-18 3973 Orange Upper San Juan Canyon. 610 Comment
  RSA702682  Senecio linearifolius Scott D. White, Michael Honer 2004-5-17 10401 Orange South Coast: City of Laguna Niguel. Ridges and open slopes directly north of the intersection of Crown Valley Parkway and Pacific Island Dr. 61 Comment
  UCR146954  Senecio linearifolius Mark A. Elvin 2003-8-24 3011 Orange Southern Coastal, San Joaquin Hills, Irvine, UCI, 100 m N of the intersection of Shady Canyon Drive and Bonita Canyon Road 72 Comment
  SD231234  Senecio linearifolius var. linearifolius Scott D. White 2004-7-7 10606 Orange South Coast: Laguna Niguel. Along both sides Pacific Island Dr., at and near small unmarked square structure on southwest side of street. Comment
  SD232203  Senecio linearifolius var. linearifolius Scott D. White 2003-7-7 9613 Orange Coastal plain: Irvine. UC Irvine Campus. Directly west of T-intersection of Shady Canyon Cr. w/ Bonita Canyon Dr. (= Culver Dr.). 70 Comment
  UCR198400  Senecio linearifolius var. linearifolius Scott D. White 2003-7-7 9613 Orange Coastal Plain, Irvine, UC Irvine Campus. Directly west of T-intersection of Shady Canyon Creek with Bonita Canyon Dr. (= Culver Drive) 70 Comment
  RSA697120  Senecio vulgaris Kenneth Beard 1934-02 s.n. Orange Along riverbank of Santa Ana River. Comment
  IRVC29813  Sesuvium verrucosum Laura D. Lyons, Mark A. Elvin 2006-9-23 427 Orange San Joaquin Marsh Freshwater Marsh, UC Natural Reserve; SW edge, along San Diego Creek, N of University Drive, E Hwy 73. Southern Coastal 2 Comment
  CAS-BOT-BC438200  Sesuvium verrucosum Carl B. Wolf 1932-7-7 3847 Orange Bryant Ranch, Bixby Ave., field 100 ft. N. of Rd. 7/10 mi. W. of Hansen Rd; 100 ft. N. & 2/10 mi. W. of S.E. corner of N.E.40 of N.W.160 of Sect. 34. T4S R11W. 7 Comment
  IRVC1825  Setaria lutescens J. B. Anderson 1966-4-25 617 Orange Santa Ana: 20021 Birch Street. Southern Coastal Comment
  CDA2442  Setaria megaphylla R. E. Riefner Jr. 2006-11-19 06 -683 Orange City of San Juan Capistrano, San Juan Creek at La Novia Avenue. Comment
  RSA723480  Setaria megaphylla R. E. Riefner 2005-10-27 5 -731 Orange City of Huntington Beach, Huntington Central Park near Goldenwest St. 1 Comment
  CAS-BOT-BC243593  Setaria parviflora Miss. H. D. Geis 1902-5-1 s.n. Orange Santa Ana Comment
  CDA2432  Setaria parviflora T. C. Fuller 1961-10-18 7174 Orange 2 miles east of Atwood. 0 Comment
  RSA483330  Setaria parviflora Albert J. Perkins s.n. Orange Santa Ana. Comment
  RSA0028739  Setaria verticilliformis R. E. Riefner Jr. 2004-12-12 4 -554 Orange City of Irvine, near Irvine Valley College, strawberry fields along Jeffrey Road near Irvine Center Drive. 37 Comment
  RSA732152  Sidalcea malviflora A. C. Sanders, Fred M. Roberts 2008-4-22 35018 Orange Santa Ana Mtns.: Lomas de Santiago, Limestone Canyon, c. 2 miles SW of Silverado. 1200 Comment
  RSA701970  Sidalcea malviflora subsp. malviflora Fred M. Roberts, David E. Bramlet 2003-6-20 5928 A Orange Rancho Mission Viejo: Donna O Neill Land Conservancy, tributary to Christianitos Cyn, along Back Road, 1.48 km WNW Sycamore Gate. 189 Comment
  CAS-BOT-BC205742  Sidalcea neomexicana subsp. thurberi LeRoy Abrams 1903-4-17 3257 -a Orange Between Tustin and Myford Comment
  CAS-BOT-BC434368  Sidotheca trilobata P. C. Everett 1935-6-19 7224 Orange Santa Ana Mts., main divide motorway 1 5/10 mi. below summit of Santiago Peak, E. slope 1310 Comment
  UCR191354  Silene antirrhina A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34641 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 330 Comment
  UCR238213  Silene antirrhina Mark A. Elvin 2003-3-30 2384 Orange South Coast, north side of UC Irvine Preserve, between core of UCI campus (E Peltason Dr.) and Hwy 73 69 Comment
  RSA683063  Silene gallica Fred M. Roberts 2003-3-19 5611 Orange Donna O Neill Land conservancy: Tributary W of Cristianitos Cyn., 1,625m NNW Sycamore Gate and 483m W Cristianitos Rd. 174 Comment
  RSA797291  Silene gallica D. M. McF 1953-4-3 s.n. Orange Irvine Coast G.C. Corona Del Mar. Comment
  RSA438884  Silene laciniata subsp. major F. R. Fosberg 1931-6-2 748 Orange Silverado Canyon, Santa Ana Mountains. Comment
  RSA602114  Silene laciniata subsp. major Scott D. White 1997-5-6 5041 Orange Santa Ana Mountains. Santiago Canyon area: Ridgetop road N and W of Bolero Lookout. 427 Comment
  RSA699745  Silene laciniata subsp. major Fred M. Roberts, David E. Bramlet 2003-5-15 5874 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, Cristianitos Cyn., 1.41km SSW Gato Gate and 0.35km NNW of SDG&E substation. 122 Comment
  RSA798186  Silene laciniata subsp. major R. F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49595 Orange Santa Ana Mountains: rocky ravine tributary to San Juan Canyon, along Ortega Highway (74) about 2 miles above San Juan Fire Station Comment
  RSA553117  Silene laciniata subsp. major Fred M. Roberts, Carol A. Roberts 1989-5-11 4349 Orange Santa Ana Mountains: Upper Blind canyon, east fork, along power line maintainance road, 3.9km SE Walnut Reservoir. 381 Comment
  RSA16488  Silene verecunda subsp. platyota Percy C. Everett 1935-6-18 16488 Orange Santa Ana Mts., summit of Santiago Pk. 1732 Comment
  UCR102027  Silybum marianum B. G. Pitzer 1997-4-15 3144 Orange San Joaquin Hills, Crystal Cove State Park, north of the N end of the City of Laguna Beach. Along Moro Canyon Trail, from beginning to a point c. 1.75 mi. up the canyon. 49 Comment
  UCR193795  Silybum marianum A. C. Sanders, Fred M. Roberts 2008-7-3 35695 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along Windy Ridge Rd. at hairpin turn/road junction below huge sandstone boulder (visible on Google Earth), 1.2 mi. SE of Walnut Canyon Reservoir 285 Comment
  RSA682755  Sinapis arvensis Scott D. White, Amanda Duchardt 2003-3-27 8849 Orange Canyon bottom and west facing slopes above Canada Gobernadora. 91 Comment
  CAS-BOT-BC75038  Sisymbrium altissimum John Thomas Howell 1927-7-24 2821 Orange Santa Ana River bottom, Santa Ana Canyon. 152 Comment
  RSA792476  Sisymbrium irio Justin M. Wood 2011-2-28 3267 Orange South Coast: Santa Ana River, marsh just upstream of Pacific Coast Highway. Plants collected throughout the marsh and along the adjacent bike path. 0 Comment
  CAS-BOT-BC75237  Sisymbrium irio Ira L. Wiggins 1966-2-12 20430 Orange North side of La Palma Avenue near Harbor Boulevard, Anaheim. Comment
  UCR191002  Sisymbrium officinale A. C. Sanders, Fred M. Roberts 2008-4-22 35047 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, slopes of south end of Loma Ridge and at head of Limestone Canyon, c. 2.5 miles SW of Silverado 488 Comment
  UCD115604  Sisymbrium orientale Rimo Bacigalupi 1962-3-16 8229 Orange along U.S. 101, 2 miles north of Doheny Beach State Park. Comment
  CAS-BOT-BC135368  Sisyrinchium Marcus E. Jones 1926-4-28 s.n. Orange Gaviota Canyon [Canon] Comment
  RSA131  Sisyrinchium bellum J. T. Howell 1927-7-19 445 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  RSA366971  Sisyrinchium bellum M. B. Dunkle 1938-3-26 5232 Orange San Juan Canyon 30 Comment
  RSA731989  Sisyrinchium bellum A. C. Sanders, Fred M. Roberts 2008-4-8 34766 Orange Peninsular Range; Lomas de Santiago, Loma Ridge, SSE of Santiago Reservoir on Loma Ridge Spur Rd., above Dripping Springs Loop Rd 457 Comment
  RSA759373  Sisyrinchium rosulatum Robt. Allen 2008-4-9 s.n. Orange Irvine, Irvine Valley College, near SW corner of A-400 building. 53 Comment
  RSA650636  Solanum douglasii Daniel Truong 1991-5-13 29 Orange Irvine Regional Park, left field adjacent to main entrance, within 1/4 mile radius of 'closed area' Comment
  UC12096  Solanum douglasii Lawrence M. Booth 1932-5-19 1075 Orange Newport Bay Comment
  UC933970  Solanum douglasii Elton F. Paddock 1951-7-22 411 Orange near San Diego County line (San Clemente State Beach, near picnic tables, near railroad tracks); San Clemente State Beach Comment
  RSA0020074  Solanum douglasii Stephen Bruff s.n. Orange Lemon Heights. Comment
  UCSB18231  Solanum douglasii Daniel, Dick 1964-3-28 Orange Silverado Canyon Road; 5.1 miles NW of junction with Santiago Canyon Road; approximately 10 miles W of Irvine Lake 365 Comment
  NY821424  Solanum nigrum C. L. Hitchcock 1964-3-17 23063 Orange 8 mi. E. of Yorba Linda, Santa Ana Canyon Comment
  UCR139445  Solanum rostratum E. R. Johnson 1946-8-22 11531 Orange Santa Ana River Canyon, Rancho Santa Ana Botanic Garden 122 Comment
  RSA38195  Solanum rostratum Ed Johnson 1946-8-22 11531 Orange sandy river bottom, Rancho Santa Ana, Santa Ana River Canyon 122 Comment
  SD247737  Solanum umbellatum R. F. Thorne, C. W. Tilforth, E. W. Lathrop. 1977-4-27 49672 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. 456 Comment
  POM212351  Solanum umbelliferum Carl B. Wolf 1931-3-6 1862 Orange North of base of Trabuco Modjeska Grade, west slope of Santa Ana Mts. 305 Comment
  POM6347  Solanum umbelliferum Philip A. Munz, L. T. Street 1919-5-3 2650 Orange Santa Ana River Canyon. Comment
  RSA550607  Solanum umbelliferum Fred M. Roberts Jr., Carol A. Roberts 1989-4-20 4307 Orange upper Lion Canyon along San Juan Trail just south of Blue Jay Campground, 2.5 km. SE Los Pinos Peak 980 Comment
  RSA553111  Solanum umbelliferum Fred M. Roberts Jr. 1989-5-9 4342 Orange Santa Ana Mts: Gypsum Canyon, west fork, 5.6 km WNW Sierra Peak, c.a. 1 km S Highway 91. 146 Comment
  RSA598959  Solanum umbelliferum Scott D. White 1997-3-28 4831 Orange Above Modjeska Canyon, proposed water tank site. 425 Comment
  RSA731988  Solanum umbelliferum A. C. Sanders, Fred M. Roberts 2008-4-8 34780 Orange Peninsular Range: Lomas de Santiago, SSE os f Santiago Reservoir on Harding Truck Trail at Dripping Springs Loop, above Limestone Canyon. 475 Comment
  SD143694  Solanum xanti Scott D. White 1997-3-28 4831 Orange Above Modjeska Canyon: proposed water tank site, in shaded canyon bottom 427 Comment
  UCR97816  Solanum xanti Scott D. White 1997-3-28 4831 Orange Santa Ana Mountains, Above Modjeska Canyon, proposed water tank site. 488 Comment
  RSA0045318  Solanum xanti Pomeroy 1929-2-10 72 Orange Silverado Canyon. PR8. Comment
  UCR232931  Soleirolia soleirolii R. E. Riefner Jr. 2011-7-1 11- 84 Orange South Coast, city of Newport Beach, beach area west of the end of Cameo Shores Road, south c. 1.5 mi from Poppy Avenue 2 Comment
  IRVC15142  Solidago californica A. S. Boughey 1968-7-9 398 Orange Santa Ana mtns: upper Santiago Canyon. Peninsular Ranges Comment
  RSA749303  Solidago californica Fred M. Roberts 1999-4-21 5176 Orange Lomas de Santiago: Loma Ridge, west slope of central Limestone Cyn., about 1.1 km W Silverado Sch. and 4.5 km NNW Bolero Lookout. 326 Comment
  RSA7652  Solidago californica E. R. Johnson 1933-9-25 5524 Orange Muddy Springs near Roundtop, Santa Ana Rancho 366 Comment
  RSA801984  Solidago californica Minor Warne 1939-4-7 s.n. Orange Ladd Canyon Comment
  LA204214  Solidago spectabilis P. P. Kennedy; 1912-8-2 1889 Orange Hunter Creek 1828 Comment
  UCR191214  Sonchus asper A. C. Sanders 2008-4-29 35146 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, western end of Loma Ridge on road to sheriff's training facility, c. 1.5 mi. SW of Santiago Reservoir 335 Comment
  UCR192477  Sonchus oleraceus A. C. Sanders, Fred M. Roberts 2008-3-25 34545 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  RSA721117  Sonchus oleraceus Anonymous s.n. Orange High School Campus. Comment
  CAS-BOT-BC235340  Sorghum halepense John Thomas Howell 1927-7-27 2859 Orange Hills on n. side of Santa Ana Canon [Canyon] 152 Comment
  IRVC1831  Sorghum halepense J. B. Anderson 1966-5-2 634 Orange MacArthur Blvd. near the Newport Freeway. southern coastal Comment
  UCSB48224  Sorghum halepense Roberts, Fred 1981-6-24 Orange San Juan Capistrano; 3.2 km. S. Saddleback Community College on Rancho Viejo Road 42 Comment
  IRVC29761  Spartina foliosa Barry S. Nerhus, Mark A. Elvin 2006-11-4 14 Orange Huntington Beach, Bolsa Chica Wetlands, SW portion of Reserve beside Pacific Coast Highway. Southern Coastal 0 Comment
  RSA234494  Spartina foliosa James Henrickson 1970-7-24 5024 Orange 2.5 miles NW of Huntington Beach along south channel of Inner Bolsa Bay, adj. top Pacific Coast Hwy in bolsa Chica Salt Marsh Comment
  SD80955  Spartina foliosa James Henrickson 1970-7-24 5024 Orange 2I(c) miles NW of Huntington Beach along south channel of Inner Bolsa bay, adjacent to Pacific Coast Hy. in Bolsa Chica Salt Marsh Comment
  UC1111637  Spartina foliosa Peter H. Raven 1957-9-28 11379 Orange n limits Surfside Comment
  SEINET10487735  Spartium junceum Charlene A. Bennett 1976-7-22 Bennett 442 Orange Cultivated and native plants collected around the san clemente beach area. 3 Comment
  UCR107849  Spergula arvensis Scott D. White, B. Leatherman 1998-1-26 6065 Orange Irvine, Univ. of Calif. Irvine Campus: Site of proposed Research Park. SW of main campus circle, c. halfway between Berkeley Avenue and new freeway (Bonita Cyn.) 37 Comment
  UCR5168  Spergula arvensis Barbara T. Gittins, O. F. Clarke 1966-3-19 889 Orange Pacific slope, Irvine Ranch, east of University of California Irvine campus, Newport Beach 91 Comment
  CDA3452  Spergula arvensis E. Dudley 1957-3-25 Orange Irvine ranch. 0 Comment
  RSA696570  Spergula arvensis Elisabeth Norland 1929-3-16 s.n. Orange Costa Mesa. Comment
  RSA0097080  Spergularia B. Pitzer 1996-4-30 2784 Orange Upper Newport Bay: California Department Fish & Game Ecological Reserve, off (W of) Jamboree Road. 6 Comment
  RSA0097854  Spergularia bocconi Steve Boyd, Timothy S. Ross 1992-5-19 7431 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of the wilderness along Lucas Canyon Trail in Aliso Canyon. 335 Comment
  POM202104  Spergularia macrotheca L. M. Booth 1932-5-19 1062 Orange Newport Bay. Comment
  RSA0097840  Spergularia macrotheca Norland 1929-4-7 s.n. Orange Los Alimitos. Comment
  RSA0097846  Spergularia macrotheca F. W. Peirson 1924-5-31 4658 Orange Laguna Canyon, Laguna Beach. 91 Comment
  RSA0098514  Spergularia marina Valerie Soza, Kevin B. Clark, LeRoy Gross, Will Miller, Fred Roberts, Gary Wallace 2001-4-4 1122 Orange Seal Beach U. S. Naval Weapons Station, southwestern edge of Seal Beach National Wildlife Refuge. 3 Comment
  RSA0098517  Spergularia marina P. A. Munz, L. T. Street, G. Williams 1919-4-4 2682 Orange Laguna Canon. Comment
  UCR193386  Spergularia rubra A. C. Sanders, T. B. Salvato 2008-5-13 35347 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Canyon at mouth of Hangman Tree Canyon and lower Hangman Tree Cyn, c. 1/2 mile below Modjeska Canyon confluence 366 Comment
  IRVC26740  Spiloxene serrata Mark A. Elvin, J. Liou, J. Carpenter, J. Nguyen 2004-3-8 3160 Orange UCI Arboretum Southern Coastal 15 Comment
  POM1127  Sporobolus airoides I. M. Johnston s.n. Orange Laguna Beach. Comment
  RSA749695  Stachys ajugoides A. C. Sanders, Fred M. Roberts 2008-7-16 35830 Orange Lomas de Santiago, canyon c. 0.12 mi. below Dripping Spring, c. 7.5 mi. ESE of Tustin 360 Comment
  UCR192975  Stachys ajugoides A. C. Sanders, Fred M. Roberts 2008-6-17 35488 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, West Loma Ridge Spur Road c. 1 km east of Sheriff's Training Facility and 1.6 km SW of Irvine Lake, between hwys 241 and 261 357 Comment
  UC1871282  Stachys ajugoides var. rigida Steve Boyd, D. L. Banks 1969-12-31 8276 Orange Peninsular Ranges; Santa Ana Mountains region; Southern Santa Ana Mountains along the ridgeline between Lucas and Verdugo Canyons west of Verdugo Potrero, near transit point ''Lucas''. T7S R6W SW1/4 NW1/4 sec. 16. Elevation ca. 1400 ft. 427 Comment
  RSA798185  Stachys rigida subsp. quercetorum Robert F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49583 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74). Comment
  POM263244  Stachys rigida subsp. rigida J. C. Roos 1937-5-10 614 Orange East of San Juan Capistrano. Comment
  UCR247897  Stachys rigida var. rigida Fred M. Roberts 2013-6-12 7797 Orange Peninsular Ranges, SANTA ANA MTNS.: Lower Silverado Canyon along Silverado Creek on north side of Silverado Canyon Road, 0.6 km ENE Silverado School and 1.4 km up stream Black Star Road crossing. 320 Comment
  RSA446699  Stachys stebbinsii F. R. Fosberg 1931-6-2 S- 5129 Orange Silverado Canyon, Santa Ana Mountains. Comment
  RSA737532  Stellaria media Fred M. Roberts 2008-3-12 6730 Orange Dana Point: Dana Point Headlands CNLM Preserve, western side, c.a. 0.8 km W Marine Institute (Dana Point Harbor). 50 Comment
  RSA743497  Stellaria media Fred M. Roberts 2008-3-19 6780 Orange Dana Point: Dana Point Headlands, CNLM Preserve, 0.8km W Marine Institute, Dana Point Harbor. 45 Comment
  CAS-BOT-BC393820  Stellaria media Ira L. Wiggins 1965-12-5 20368 Orange 2 mi. E of Atwood, on N side of Orangethorpe Ave. Comment
  SDSU4468  Stellaria media R. M. Beauchamp 1968-2-17 772 Orange 2 miles north of El Toro Road intersection. Comment
  UCR13409  Stenotaphrum secundatum William A. Hunt 1972-4-9 720409- 02 Orange South Coast, San Clemente, San Clemente Beach State Park, day use area, bluffs directly overlooking Pacific Ocean 15 Comment
  CAS-BOT-BC227698  Stephanomeria A. C. Sanders; Fred M. Roberts 2008-7-16 35827 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago, along road in lower Limestone Canyon, near junction with Harding Truck Trail 290 Comment
  UCR193852  Stephanomeria A. C. Sanders, Fred M. Roberts 2008-7-16 35827 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, along road in lower Limestone Canyon, near junction with Harding Truck Trail 290 Comment
  JEPS36878  Stephanomeria diegensis L. M. Booth 1933-10-18 Orange Newport Comment
  RSA232212  Stephanomeria diegensis James Henrickson 1970-8-22 s.n. Orange 2.5 miles NNW of Huntington Beach. 0 Comment
  UCD136245  Stephanomeria diegensis L. D. Gottlieb 1968-8-14 6860 Orange on Route 74, immediately west of Lower San Juan Campground. 411 Comment
  UC520303  Stephanomeria virgata subsp. pleurocarpa Joseph Andorfer Ewan 1932-7-28 7706 Orange Corona del Mar Comment
  SD144498  Stipa miliacea Scott D. White 1997-3-28 4826 Orange Santa Ana Mtns: Above Modjeska Canyon: along Harding Cyn Truck Trail, near Modjeska Cyn Rd and wash crossing. 424 Comment
  SACT002403  Stipa pulchra Herbert Copeland 1938-6-28 Orange Hills back of Laguna Beach. Comment
  POM1023  Stuckenia pectinata D. L. Crawford 1916-7-26 s.n. Orange Aliso Canyon Comment
  RSA0011014  Stylocline gnaphaloides Fred M. Roberts 2012-5-10 7570 Orange San Joaquin Hills: Buck Gully, south tributary, north slope Pelican hill, just north of Pelican Hills Drive, 0.7 km N Pelican Hill summit. 154 Comment
  UCR192110  Stylocline gnaphaloides A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35311 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along fire line/bulldozer cut, c. 1.5 mi. east of Walnut Cyn Reservoir 346 Comment
  UCSB48120  Stylocline gnaphaloides Fritzke, S.; Roberts, Jr., Fred 1982-4-3 Orange Rancho Mission Viejo; Calif. 74, 7.2 km. by road E San Juan Capistrano; 1.3 km. NE Viejo Survey Marker 98 Comment
  RSA535089  Styrax redivivus Steve D. Boyd, Orlando Mistretta 1991-5-9 6205 Orange Santa Ana Mountains, crest of range, S of Oak Flats at Beek's Place on Main Divide Truck trail at junction with Black Star Canyon Road. 854 Comment
  RSA594808  Styrax redivivus Fred M. Roberts Jr., K. Nowak 1995-4-19 4926 Orange Lower Hot Spring Canyon, San Juan Trail, 0.5 km NW Juan Rancho Survey Mark. 335 Comment
  RSA438605  Suaeda calceoliformis J. Ewan 1931-7-31 4763 Orange Smeltzer Comment
  POM259534  Suaeda calceoliformis A. C. Keller 1938-7-29 s.n. Orange At entrance to Lido Isle, Newport Comment
  RSA696273  Suaeda californica Keith E. Hoffmaster 1927-6-5 s.n. Orange near Newport Comment
  SD80942  Suaeda californica var. pubescens James Henrickson 1970-7-25 5028 Orange 3.5 miles northwest of Huntington Beach on sandy margin of Bolsa Bay. Comment
  SEINET156034  Suaeda californica var. pubescens Norman C. Cooper 1944-11-9 883 Orange Balboa. Comment
  RSA0035667  Suaeda esteroa R. E. Riefner Jr. 2012-11-6 12 -533 Orange city of Newport Beach, Newport Bay, North Star Beach, near Newport Aquatic Center, White Cliffs Drive/North Star Lane 2 Comment
  RSA758780  Suaeda esteroa F. R. Fosberg 1930-7-10 S 3179 Orange Anaheim Landing. [Los Angeles Co. on label] Comment
  UCSB36525  Suaeda esteroa Ferren, Wayne; Whitmore, S. 1980-8-27 Orange Newport Backbay, along Backbay Drive; ca. 1.5 km. NE of Rt. 1, Newport Beach Comment
  POM201941  Suaeda moquinii L. M. Booth 1932-7-4 1247 Orange Newport Lagoon. Comment
  RSA18528  Suaeda taxifolia C. B. Wolf 1927-7-23 669 Orange Along the coast just north of San Clemente. Comment
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Jun 3 2013
  RSA438588  Suaeda taxifolia N. C. Cooper 1942-11-9 883 Orange Balboa Comment
  RSA438589  Suaeda taxifolia Anstruther Davidson 2990 Orange Newport Comment
  SEINET187082  Suaeda taxifolia Allan C. Keller 1937-11-26 Orange Alt. 20 to 40 ft. on cliffs, Doheny Palisades, Highway 101. Comment
  SEINET187090  Suaeda taxifolia Allan C. Keller 1937-11-26 Orange Santa Ana River Bridge west of Newport Beach on U.S. Highway Alternate 101. Comment
  UC1007088  Suaeda taxifolia Allan C. Keller 1937-11-26 Orange Santa Ana River Bridge w Newport Beach (on U.S. Highway 101 Alternate); , Santa Ana River Comment
  UCSB48081  Suaeda taxifolia Roberts, Fred 1981-11-15 Orange Newport Beach: Upper Newport Back Bay; Bayside Dr.; 0.2 km. N central parking area 2 Comment
  UCSB48376  Suaeda taxifolia Roberts, Dar; Roberts, Fred 1982-4-19