Search Results — 2000 specimen records retrieved (1619 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/cch_archive/).
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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  RSA697264  Abelia X grandiflora M. Gidcomb 1934-09 s.n. Orange Santa Ana Comment
  RSA461004  Abronia umbellata William Greenberg 1939-7-20 20519 Orange Newport Beach Comment
  UCR42433  Abronia umbellata A. C. Sanders 1986-5-31 6528 Orange Southern Coast, Balboa Island at Newport Beach. Dunes at the back edge of the beach, from 6th St. S to the harbor entrance 1 Comment
  SDSU8415  Abronia umbellata subsp. umbellata R. M. Beauchamp 1967-3-19 319 Orange Growing in sandy area south of the west end of the airstrip at Sherman Field. Comment
Read comments May 21 2013
  SEINET7067537  Abronia villosa A. G. Vestal 1947-6-12 s.n. Orange Santa Ana River Wash northwest of Orange. Coordinate datum: NAD27. UTM Zone 11, 418667mE, 3739612mN. Comment
  POM201771  Abronia villosa var. aurita L. M. Booth 1932-7-30 1341 Orange Santa Ana River, 2 miles from ocean Comment
  RSA0126616  Acacia Fred M. Roberts 2012-4-27 7497 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
  RSA752716  Acacia longifolia Fred M. Roberts, Sandy Leatherman, Jennifer Pareti 2009-4-14 7152 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
  SEINET946801  Acacia longifolia R. J. Barr 1964-1 64 -589 Orange Roadside near Capistrano Beach Comment
  RSA639692  Acacia redolens Scott D. White, P. De Vries 1998-12-10 s.n Orange Brea; Oil field south of Tonner Canyon and north of Lambert rd. Comment
  UCR239623  Acacia redolens Fred M. Roberts 2012-4-24 7497 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
  HSC79051  Acalypha californica Steve Boyd, L. F. LaPre 1981-5-27 Orange N end of the Santa Ana Mtns., along powerline road on ridges E of Weir Canyon and at the head of Gypsum Canyon Comment
  IRVC9186  Acalypha californica C. A. Taylor 1966-5-18 66 -118 Orange Santa Ana Canyon, Old Rancho Santa Ana Botanic Garden site; full sun on flats and slopes. Chino Hills Comment
  IRVC23426  Acer macrophyllum Fred M. Roberts 1985-7-26 2087 Orange Santa Ana Mtns: Upper trabuco Cyn, 1.3 km NE Los Pinos Pk. Peninsular Ranges 1225 Comment
  RSA456  Acer macrophyllum J. T. Howell 1927-7-26 478 Orange Claymine Ca - on near Sierra Peak. 244 Comment
  RSA514320  Acer macrophyllum Reid V. Moran, Daniel I. Axelrod, Bob Smart 1975-7-18 22595 Orange Along stream near Yeager Mine, upper Trabuco Canyon. 725 Comment
  UC1071624  Acer macrophyllum H. E. Norton 1931-3-20 43 Orange top of Santa Ana Mts. , Corona Quad. 1036 Comment
  UC218134  Acer macrophyllum P. A. Munz, R. D. Harwood 1920-4-25 6730 Orange Silverado Canyon Santa Ana Mts., Silverado Canyon (along stream) 548 Comment
  RSA788919  Achillea millefolium Fred M. Roberts 1999-6-10 5241 Orange Lomas de Santiago: Loma Ridge, Central Limestone Cyn., adjacent to the Sinks, 0.7 km E Bolero Spring and 1.9 km NW Bolero Lookout. 411 Comment
  RSA562739  Achillea millefolium var. californica Steve Boyd 1992-5-20 7455 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of wilderness in Lucas Canyon along a new section of trail heading up major side canyon northward to Sitton Peak Road (7S09), 305 Comment
  RSA758893  Achnatherum coronatum A. C. Sanders, Fred M. Roberts 2008-4-22 35006 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
  UCSB48114  Acmispon americanus Roberts, Jr., Fred 1981-4-12 Orange Santa Ana Mountains; San Juan Canyon, Hwy. 74, 1.3 km. by road E San Juan Guard Station; 0.9 km. SE Juan Rancho Survey Mark 295 Comment
  UCSB47975  Acmispon glaber Roberts, Jr., Fred 1980-2-17 Orange Along Dana Strand road on the north side, on the bluff west of Dana Marina, Dana Point 56 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
  RSA746472  Acourtia microcephala R. E. Riefner Jr. 2008-5-13 08- 76 -a Orange Near City of Orange, W side of Hicks Haul Rd., Irvine Ranch Reserve, Management Area 11. Comment
  RSA790698  Adenostoma fasciculatum Jeanne Paxton 1934-4-21 5 Orange Modjeska Canyon. PR8. Comment
  RSA792253  Adenostoma fasciculatum R. H. McArthur 1934-4-7 4 Orange Ladd Canyon. Comment
  UC1127728  Adenostoma fasciculatum H. E. Norton 1931-3-23 48 Orange 1 1/2 mi. s. Santa Ana Canyon (Plot #37, Corono #2); Corona Quad. Comment
  UCR230219  Adenostoma fasciculatum Dick Newell, Ed Hill 2011-3-29 102 Orange Peninsular Range; Santa Ana Mtns., 200 yards NE of old coal mine, under power lines, off Coal Rd. below intersection with Upper Blind Cyn. Rd. 482 Comment
  SD247725  Adenostoma fasciculatum R. F. Thorne, C. W. Tilforth, E. W. Lathrop. 1977-4-27 49680 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. 456 Comment
  RSA5280  Adenostoma fasciculatum var. fasciculatum B. D. Stark 1932-12-15 1700 Orange Rancho Santa Ana 145 Comment
  CDA1085  Adiantum capillus-veneris D. G. Kelch 2006-12-9 6 .532 Orange Newport Bay, Back Bay Dr. betweeen marsh and steep bluff. Comment
  RSA0042819  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 Hwy 1 Comment
  POM188247  Adiantum jordanii Marcus E. Jones 1931-3-23 28426 Orange Laguna Comment
  RSA2  Adiantum jordanii J. T. Howell 1927-6-17 158 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  UCR215286  Adiantum jordanii Fred M. Roberts 2008-5-14 6960 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 337 Comment
  RSA728669  Agave attenuata R. E. Riefner 2007-2-18 07 -67 Orange City of Rancho Santa Margarita, Tijeras Canyon, N ca. 0.5 mi from Meandering Trails Rd. on Antonio Pwky. 221 Comment
Read comments Feb 28 2016
  RSA695487  Ageratum houstonianum Ruth Greenwald, Virginia Pritchard 1938-05 s.n. Orange Santa Ana. Comment
  CAS-BOT-BC295625  Agnorhiza ovata P. C. Everett 1935-6-18 7198 Orange Santa Ana Mts., Main Divide Motorway, Los Pinos Potrero 914 Comment
  UCR150907  Agoseris retrorsa Valerie Soza, LeRoy Gross 1999-6-10 513 Orange Santa Ana Mountains, Southwestern extension of Modjeska Peak, off dirt road to summit, off Main Divide Road 1524 Comment
  SEINET13724198  Agropyron parishii J. L. Stevens 1969-5-14 48 Orange Fullerton, just N of CSF on State College Blvd. 183 Comment
  UCR193382  Agrostis pallens A. C. Sanders, Mitch Provance 2008-5-20 35389 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
  UCR193834  Agrostis pallens A. C. Sanders, Fred M. Roberts 2008-7-16 35851 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Limestone Canyon 325 Comment
  CAS-BOT-BC64519  Ailanthus altissima E. R. Johnson 1932-5-1 3704 Orange Rancho Santa Ana, Santa Ana Canyon. Aliso Canyon. 182 Comment
  RSA0013973  Allium haematochiton Fred M. Roberts, David E. Bramlet 2008-5-13 6952 Orange Upper Weir Cyn., central fork, 3.5 km NE Roberst Peak 369 Comment
  RSA176731  Allium haematochiton D. E. Breedlove 1962-3-9 1788 Orange 12.3 miles east of San Juan Capistrano on State [Highway] 74 244 Comment
  UCSB18193  Allium haematochiton 1962-3-9 Orange 12.3 miles east of San Juan Capistrano on State 74 243 Comment
Read comments Apr 10 2016
  CAS-BOT-BC132051  Allium peninsulare var. peninsulare P. C. Everett; E. R. Johnson 1935-5-29 7092 Orange Santa Ana Mts., Summit of Claymine Canyon 762 Comment
  CAS-BOT-BC474098  Allium praecox Munz; L. Street; Williams 1919-5-3 2635 Orange Santa Ana River Canyon Comment
  RSA562756  Allium praecox Steve Boyd, Timothy S. Ross 1992-5-19 7432 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of the wilderness along Lucan Canyon Trail in Lucas Canyon, just upstream from divide with Aliso Canyon. 366 Comment
  RSA562736  Allophyllum glutinosum Steve Boyd, T. S. Ross 1992-5-20 7452 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of wilderness in Lucas Canyon along a new section of trail heading up major side canyon northward to Sitton Peak Road (7S09), 305 Comment
  RSA581438  Alnus rhombifolia Fred M. Roberts, Gordon Marsh 1932-2-7 4357 Orange Santiago Canyon, Flemming Regional Park, just E of Modjeska at end of paved road, c.a. 3.0 km WSWLaurel Springs. 436 Comment
  RSA734765  Amaranthus albus A. C. Sanders, T. B. Salvato 2008-5-13 35346 Orange Lomas de 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
  RSA751256  Amaranthus blitoides A. C. Sanders, Fred M. Roberts 2008-7-16 35880 Orange Lomas de Santiago, Santiago Creek wash at and above the confluence of Hangmans Tree Canyon 358 Comment
  UCR193848  Amaranthus blitoides A. C. Sanders, Fred M. Roberts 2008-7-16 35880 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Creek wash at and above the confluence of Hangmans Tree Canyon 370 Comment
  RSA725586  Amaranthus deflexus Fred M. Roberts 2007-8-6 6699 Orange San Joaquin Hills: Laguna Beach, Laguna Cyn. on east side of Laguna Cyn. Rd. adj. to dog park, 1.2 km S (air) from El Toro Road and 1.8 km WSW Moulton Survey Mk. 52 Comment
  IRVC14988  Amaranthus hybridus 1976-10-28 Orange Nieblas Elementary Sch. playground Fountain Valley Comment
  UCSB37368  Amaranthus hybridus Roos, Alfred 1937-12-2 Orange Santa Ana Comment
  UCSB46145  Amaranthus hybridus Roos, Alfred 1937-12-9 Orange West 17th St. in Santa Ana Comment
  UCR207561  Amaranthus palmeri O. F. Clarke 2004-5-29 s.n. Orange Santa Ana River Canyon, Santa Ana River on the west side of Featherly Park 110 Comment
  RSA274  Amaranthus powellii J. T. Howell 1927-7-27 502 Orange Near ranch, Rancho Santa Ana 152 Comment
  UC537271  Amaranthus powellii Lawrence M. Booth 1932-7-21 1295 Orange Anaheim Marsh Comment
  IRVC22955  Amblyopappus pusillus Karlin G. Marsh 1986-10-18 Orange Santa Ana Canyon, Featherly Park; in sandy wash. Yorba Linda Comment
  IRVC8602  Amblyopappus pusillus J. B. Anderson 1966-4-16 577 Orange Newport Beach; Corona del Mar; Buck Gully; "Little Corona Beach"; moist canyon bottom with small brooklet near stream. Southern Coastal 0 Comment
  CAS-BOT-BC13608  Ambrosia acanthicarpa John Thomas Howell 1927-10-22 3164 Orange In Santa Ana River bottom, Santa Ana Canyon 152 Comment
  UCR210314  Ambrosia acanthicarpa A. C. Sanders, Fred M. Roberts, Jutta Burger 2009-10-21 37199 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Bee Flat at mouth of Limestone Canyon 264 Comment
  JEPS20090  Ambrosia chamissonis Peter H. Raven 1957-9-28 11370 Orange north limits of Surfside Comment
  RSA0019780  Ambrosia chamissonis Kevin B. Clark 2005-3-8 s.n. Orange Balboa, 200 yards south of Balboa Pier. In the city of Newport Beach, Near foot of E Street, on beach. 2 Comment
  CDA10047  Ambrosia psilostachya D. G. Kelch 2006-12-9 6 .551 Orange Irvine. University Dr along tidal creek just E of I-73. Comment
  RSA743386  Ambrosia psilostachya Fred M. Roberts 2008-7-10 7066 Orange Dana Point: Dana Point Headlands, CNLM Preserve, along north slopes above Dana Strand Beach, 0.8km WNW Marine Institute, Dana Point Harbor. 45 Comment
  RSA753036  Ambrosia psilostachya A. C. Sanders, Fred M. Roberts 2008-9-18 36073 Orange Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge 320 Comment
  RSA770  Ambrosia psilostachya J. T. Howell 1927-9-24 754 Orange Santa Ana River Bottom, Rancho Santa Ana 152 Comment
  UCR197676  Ambrosia psilostachya A. C. Sanders, Fred M. Roberts 2008-9-18 36073 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge 330 Comment
  UCSB52398  Ambrosia psilostachya Roberts, Fred 1982-10-4 Orange Laguna Niguel; Niguel Hill, 2.7 km. NNE Aliso Peak; 1.5 km. WNW Alicia Fire Station 160 Comment
Read comments Jan 25 2020
  CAS-BOT-BC45065  Ambrosia psilostachya Carl B. Wolf 1932-7-7 3841 Orange Bryant Ranch, Bixby Ave, south edge of field 2/10 mi W of Hansen Rd 152 Comment
  RSA69486  Ambrosia psilostachya E. L. Paddock 1951-8-1 s.n. Orange Glidden Mill, Buena park, 1 mi. east of Hansen Road. Comment
  POM12449  Ammannia robusta P. A. Munz 1922-9-2 6353 Orange Ponds in Laguna Canyon 46 Comment
  POM201611  Ammi visnaga L. M. Booth 1932-7-18 1268 Orange Santa Ana River, 1 mile from Ocean. Comment
  SBBG14802  Amorpha californica P. H. Raven 1962-5-18 17752 Orange Silverado Cyn Truck Trail 7.3 mi above Gate 1280 Comment
  CAS-BOT-BC180616  Amorpha californica var. californica L. R. Abrams 1901-6-1 1828 Orange Santa Ana Mts. Comment
  JEPS35488  Amorpha fruticosa John Thomas Howell 1927-6-6 2449 Orange Rancho Santa Ana Santa Ana Canyon, Santa Ana River bottom 152 Comment
  RSA378  Amorpha fruticosa J. T. Howell 1927-6-6 49 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  UCD170780  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
  JEPS61147  Amsinckia intermedia Alice King 1908-1 Orange Anaheim plain Anaheim Comment
  UC1178234  Amsinckia intermedia Francia Chisaki 1957-4-3 925 a Orange 3 mi s Irvine (on Hwy 101) Comment
  RSA0089446  Amsinckia intermedia Daniel Truong 1991-5-5 10 Orange Irvine Regional Park, left field adjacent to main entrance, within 1/4 mile radius of closed area. Comment
  RSA0089447  Amsinckia intermedia Ken Greby 1985-4-18 17 Orange Alongside Laguna Canyon Rd. approx. 1.5 km. NE from El Toro Rd. 46 Comment
  IRVC212  Amsinckia menziesii var. intermedia C. Thompson 1965-3-20 Orange [Lower Santiago Canyon], Irvine Lake area. Santa Ana Mountains Comment
  RSA650587  Anagallis arvensis Howard Cook 1948-5-8 4 Orange Collected on Santa Ana River about 8 miles east of Fullerton. 91 Comment
  RSA650588  Anagallis arvensis D. Geisinger, R. Miller, E. Baldwin 1959-4-14 s.n. Orange Poor Mans Weather Glass, Santa Ana Canyon. Comment
  RSA659985  Anagallis arvensis Steve Teh 1994-5-20 26 Orange Modjeska Grade rd. Fire road trail head. Comment
  RSA678734  Anagallis arvensis Fred M. Roberts, Carol A. Roberts, Robert Allen 2003-5-11 5861 Orange Dana Point Headlands: hilltop, 0.6km SSW Richard Henry Dana School south of Pacific Coast Highway and north of Scenic Drive. 73 Comment
  RSA701652  Anagallis arvensis Stephen Bruff s.n. Orange Lemon Heights. Comment
  CDA5480  Anagallis arvensis subsp. arvensis J. McNeill 1969-4-17 3069 Orange U.C. Irvine Campus. Comment
  POM201883  Anemopsis californica L. M. Booth 1932-6-4 1142 Orange Newport Lagoon. Comment
  RSA5909  Anemopsis californica C. B. Wolf 1932-7-2 3818 Orange Carbon Canyon, 1/8 mile below La Vida Springs [La Vida Mineral Springs]. 21 Comment
  RSA651285  Anemopsis californica Marcy Keys 1981-5-24 81 Orange 3 miles inland from Laguna Beach on Laguna Canyon Rd. Comment
  UC1618061  Anemopsis californica Donald G. Nelson 1935-6-2 320 Orange n of Brea (mouth of Brea Canyon, on Tonner lease); mouth of Brea Canyon Comment
  UC672439  Anemopsis californica Herbert L. Mason 1926-4-25 2902 Orange near Laguna Comment
  RSA652673  Anemopsis californica R. Spence 1974-8-13 s.n. Orange Upper Newport Bay. Hillsides around Bay. Comment
  IRVC17997  Anthemis cotula A. B. McGee 1970-9-9 Orange San Diego Creek Channel adjacent to San Joaquin Freshwater Marsh. Irvine Comment
  RSA4797  Anthemis cotula James Snow 1932-1 s.n. Orange Bryant Ranch, near Long Beach. South East 1/4 Section 25, Township 4S, Range 12 W, Station #1 plant #3. [ or T5S R12W sec.1 SW/4] Comment
  RSA627033  Anthemis cotula Scott D. White 1998-5-16 6507 Orange E Coyote Hills, Oil field at NW corner of Bastanchury and State College. 122 Comment
  RSA681268  Antirrhinum coulterianum Scott D. White, Michael Honer 2003-5-29 9435 Orange Santa Ana Mountain Foothills: Rancho Mission Viejo. Steep, gen. south-facing slopes above trib. to Trampas Canyon, ca. 0.6 air mi. S of Ortega hwy and ca. ca. 0.5 mi west of Trampas Cyn. 122 Comment
  POM443834  Antirrhinum coulterianum Karlin G. Marsh 1978-6-6 s.n. Orange Santa Ana Mts: Holy Canyon Comment
  JEPS4288  Antirrhinum nuttallianum subsp. nuttallianum Lawrence M. Booth 1932-7-7 1260 Orange s of Huntington Beach Comment
  POM4240  Antirrhinum nuttallianum subsp. nuttallianum I. M. Johnston 1918-5-4 1888 Orange Back of Laguna Beach, moist shaded hillside 61 Comment
  UC1280323  Antirrhinum nuttallianum subsp. nuttallianum John M. Tucker 1941-5-30 260 Orange 2-3 mi e western boundary of Cleveland National Forest (at roadside on Ortega Highway) Comment
  UCR162200  Antirrhinum nuttallianum subsp. subsessile Robert DeRuff 1983-1 275 Orange Southern Coast, Newport Beach, Upper Newport Back Bay, Castaway's Bluffs 24 Comment
  UCR224161  Antirrhinum nuttallianum subsp. subsessile Fred M. Roberts 2008-3-19 6784 Orange South Coast, Dana Point Headlands, Center for Natural Lands Mgmt. Preserve, 0.8 km west of the Marine Institute, Dana Point Harbor 45 Comment
  UC494727  Aphanisma blitoides Philip A. Munz 1932-3-29 12192 Orange base of sea-cliffs Costa Mesa Comment
Read comments Dec 4 2014
  RSA603357  Apium graveolens Scott D. White, Brian Leatherman 1997-6-12 5314 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
  POM3324  Apium graveolens D. L. Crawford 1916-7-26 s.n. Orange Aliso Canyon Comment
  RSA357004  Apium graveolens R. F. Thorne 1975-4-6 45567 Orange San Joaquin Marsh: Near Irvine and coast. Comment
  RSA0126213  Arabis glabra P. A. Munz, R. D. Harwood 1920-4-25 3721 Orange Santa Ana Mountains, Silverado Canyon. 549 Comment
  IRVC22985  Araujia sericifera Karlin G. Marsh 1986-9-12 Orange Yorba Linda; Santa Ana Canyon, Santa Ana River, north side, Featherly Park south of Esperanza Rd. Santa Ana Mountains 105 Comment
  RSA629333  Arctostaphylos glandulosa Jon E. Keeley 1992-6-12 15517 Orange North of El Cariso on road to Los Pinos Pk, 3.8 km north of Hwy 74. 1000 Comment
  RSA629335  Arctostaphylos glandulosa Jon E. Keeley 1992-6-12 15527 Orange North of El Cariso on road to Los Pinos Pk, 3.8 km north of Hwy 74. 1000 Comment
  UCR273488  Arctostaphylos glandulosa A. C. Sanders, Glen Morrison 2016-8-4 42608 Orange Peninsular Range; Santa Ana Mountains, dirt road off North Main Divide Road (Forest Rte 3S04), north of Los Pinos Spring, 3.87 km NW (286 deg. ) of El Cariso Fire Station 1101 Comment
  CAS-BOT-BC23112  Arctostaphylos glandulosa subsp. glandulosa P. A. Munz; E. K. Balls 1952-8-19 17924 Orange Summit of Ortega hwy, Santa Ana Mts. 822 Comment
  POM254923  Arctostaphylos glandulosa subsp. glandulosa W. Pequegnat 1940-6-19 s.n. Orange Main Divide Road, between Pleasants and Bedford Peaks. Santa Ana Mts. Comment
  POM254950  Arctostaphylos glandulosa subsp. glandulosa W. Pequegnat 1940-6-13 s.n. Orange Bear Springs, Santa Ana Mts. Comment
  RSA629316  Arctostaphylos glandulosa subsp. glandulosa Jon E. Keeley 1992-6-12 15518 Orange North of El Cariso on road to Los Pinos Pk, 3.8 km north of Hwy 74. 1000 Comment
  RSA629319  Arctostaphylos glandulosa subsp. glandulosa Jon E. Keeley 1992-6-12 15526 Orange North of El Cariso on road to Los Pinos Pk, 3.8 km north of Hwy 74. 1000 Comment
  RSA629320  Arctostaphylos glandulosa subsp. glandulosa Jon E. Keeley 1992-6-12 15523 Orange North of El Cariso on road to Los Pinos Pk, 3.8 km north of Hwy 74. 1000 Comment
  RSA5328  Arctostaphylos glandulosa subsp. zacaensis B. D. Stark 1933-1-4 4486 Orange Ridge above Claymine Canyon. No. end of Santa Ana Mts. 305 Comment
  RSA0025295  Arctotheca prostrata R. E. Riefner Jr. 2013-7-6 13 -125 Orange City of Irvine, Irvine Valley College, Irvine Center Dr. near College St. 37 Comment
  UCR191667  Arctotheca prostrata Robert DeRuff 2004-1 548 Orange South Coast, Newport Beach, Upper Newport Bay, bluff below Eastbluff North 18 Comment
  RSA652146  Argemone munita J. Bruce Smiley 1940-5-7 s.n. Orange Santa Ana Wash. 457 Comment
Read comments Mar 10 2013
  UCR215293  Argemone munita Fred M. Roberts 2008-5-20 6992 Orange Lomas de Santiago, Santiago Creek wash north of Hangman Tree Road near confluence of Pancho Canyon, 1.6 km NW of Bolero Lookout. Irvine Ranch Conservancy. 349 Comment
  CAS-BOT-BC27476  Argemone munita subsp. robusta Carl Brandt Wolf 1933-8-24 5403 Orange Santa Ana Mts. Summit of Santiago Pk. 1731 Comment
  RSA105977  Argemone munita subsp. robusta Gerald B. Ownbey, Findley Ownbey 1954-7-2 2177 Orange Between Modjeska Peak and Santiago Peak 1524 Comment
  SEINET4002143  Argemone munita var. robusta G. B. Ownbey, F. Ownbey 1954-1 2168 Orange Between Modjesca Peak and Santiago Peak. 1524 Comment
  RSA542513  Aristida purpurea var. parishii Fred M. Roberts 1987-3-31 3314 Orange Lomas de Santiago: Lomas [Loma] Ridge, Upper Serrano Canyon, east fork, reservoir, 2.2 kilometers SE Bolero Lookout, UTM 37 28 500m N, 4 41 200m E. 406 Comment
  RSA542372  Aristida ternipes var. hamulosa Fred M. Roberts, K. Keane 1988-5-25 3989 Orange Rancho Mission Veijo: Lower Canada Chiquita, 2.0 kilometers SSE Medium Rancho Survey Marker., UTM 3710600m N, 443550m E. 91 Comment
  RSA776  Artemisia biennis J. T. Howell 1927-10-29 784 Orange Bryant Ranch near Long Beach. 15 Comment
  IRVC21707  Artemisia californica Fred M. Roberts, G. A. Marsh 1984-10-16 1419 Orange east bluff, Newport Back Bay, 3.6km W UCI campus center; 0.1km S Camp Survey Mark, Newport Beach 15 Comment
  IRVC28770  Artemisia californica Elizabeth H. Hook, Caroline Tran 2006-2-4 1 Orange San Joaquin Marsh; NW bluff edge Southern Coastal 5 Comment
  POM201746  Artemisia californica L. M. Booth 1932-6-29 1223 Orange Newport Bay. Comment
  RSA301943  Artemisia californica Jim Shevock 1970-10-19 523 Orange Newport Back Bay 6 Comment
  RSA781180  Artemisia californica T. B. Salvato 2010-10-27 5124 Orange Dana Point Headlands, Harbor Point Park, south of Scenic Dr. and Cove Rd., beyond the end of Green Lantern St., overlooking Dana Point Harbor 52 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
  UCSB16965  Artemisia californica Gerhart, Janet 1963-2-22 Orange 1.5 miles above locked gate on dirt road, Trabuco Canyon, 17.4 miles east of U.S. Highway 101 at El Toro Marine Base, 2.5 miles by air southeast of Santiago Peak 457 Comment
  CAS-BOT-BC90268  Artemisia douglasiana John Thomas Howell 1927-8-13 2989 Orange Santa Ana River bottom, Santa Ana Canyon 152 Comment
  IRVC3140  Artemisia douglasiana Fred M. Roberts 1986-9-3 3140 Orange adjacent to Anaheim, between Yorba Linda Regional Park and Imperial Hwy, Santa Ana River 88 Comment
  RSA725470  Artemisia douglasiana Fred M. Roberts, Megan Lulow 2007-7-30 6548 Orange Fremont Canyon, 1.3 km NE Irvine Lake spillway, North Irvine Ranch Policy Area. 253 Comment
  POM201750  Artemisia dracunculus L. M. Booth 1932-7-4 1242 Orange Newport Lagoon. Comment
  RSA774  Artemisia dracunculus J. T. Howell 1927-9-24 752 Orange Santa Ana River Bottom, Rancho Santa Ana 152 Comment
  UC520366  Artemisia dracunculus Louis C. Wheeler 1932-6-25 872 Orange inland arm Newport Bay 0 Comment
  UCR193027  Artemisia dracunculus A. C. Sanders, Fred M. Roberts 2008-6-17 35514 Orange Peninsular Range; Santa Ana Mtns., middle section of Weir Canyon, SSE of Walnut Canyon Reservoir 225 Comment
  RSA784185  Artemisia dracunculus J. D. Olmsted 1959-8-26 837 Orange Along road south of mouth of Black Star Canyon north of Rock Crushing plant 305 Comment
  IRVC408  Arthrocnemum subterminale J. B. Anderson 1966-4-16 589 Orange Newport Beach; Corona del Mar; Buck Gully; "Little Corona Beach"; moist canyon bottom with small brooklet near stream. Southern Coastal 0 Comment
  RSA478872  Arthrocnemum subterminale F. R. Fosberg 1931-8-19 7283 Orange Newport Bay. 0 Comment
  RSA70038  Arthrocnemum subterminale F. W. Peirson 1924-8-29 5091 Orange Corona Del Mar Comment
  RSA162797  Arundo donax John Olmsted 1959-9-22 978 Orange Santa Ana River by Sycamore Park about 8-9 miles WSW of corona off of main highway to Santa Ana Mountais. Pacific Ocean Drainage Area. 134 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
  RSA657741  Asclepias eriocarpa Ken Greby 1985-5-17 25 Orange On hillsides behind PG and E substation located 2 km. SE from Laguna Canyon Rd., on El Toro Rd., adjacent to Leisure World. Comment
  SEINET955311  Asclepias eriocarpa Carl B. Wolf 1936-1 7947 Orange Santa Ana Mountains, along Ortega Highway, 5 6/10 miles above San Juan Capistrano. 76 Comment
  UCR192989  Asclepias eriocarpa A. C. Sanders, Fred M. Roberts 2008-6-17 35489 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
  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
  IRVC18898  Asclepias fascicularis Fred M. Roberts 1981-6-22 281 Orange Hwy 74, 5.2km ENE San Juan Capistrano, Rancho Mission Viejo 100 Comment
  IRVC19697  Asclepias fascicularis Karlin G. Marsh 1983-5-25 s.n. Orange Sycamore Hills, Laguna Canyon; freshwater marsh between Laguna Canyon laterals 6 & 7. Laguna Beach Comment
  JEPS5080  Asclepias fascicularis L. M. Booth 1932-7-21 1291 Orange Anaheim Creek Comment
  RSA715694  Aster subulatus var. ligulatus Fred M. Roberts, Chris M. Barnhill 2005-9-27 6275 A Orange San Juan Capistrano: San Juan Creek wash, east of La Novia Road bridge, 1.4km E Mission San Juan Capistrano, 27 Comment
  RSA784  Aster subulatus var. ligulatus J. T. Howell 1927-9-24 750 Orange Santa Ana River Bottom, Rancho Santa Ana 152 Comment
  RSA701753  Astragalus brauntonii Elisabeth Landis, Valentin Arvizu, Cliff McLean, Kadest Ketsella 2004-9-6 s.n. Orange Specimen located against wooden cofferdam in wet sand in CalTrans debris basin on S side of 91 Freeway in Coal Canyon. Comment
Read comments Nov 22 2011
  UCR170789  Astragalus brauntonii Adrian Wolf, Paul Galvin 2003-8-11 s.n. Orange Santa Ana Mtns., North Ranch Policy Plan Area, Gypsum Canyon 284 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
  UCR191320  Astragalus gambelianus A. C. Sanders, Fred M. Roberts 2008-4-8 34748 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, head of Hicks Canyon, S of Santiago Reservoir 351 Comment
  SEINET892558  Astragalus leucophyllus Leslie Freeman 1963-1 128 Orange Diamond Bar Ranch in Brea Canyon. Santa Ana Mt. Range. Pacific drainage area. 304 Comment
  HSC14575  Astragalus trichopodus var. lonchus S. M. Clapp 1966-4-9 38 Orange Just S of Brea Canyon Rd. and 1 mi. N of Brea. Union Oil Proper. 61 Comment
  IRVC22732  Astragalus trichopodus var. lonchus Fred M. Roberts 1985-5-13 1789 Orange South Laguna; Mouth of Aliso Canyon, 0.6km NW Aliso Peak, 6 Comment
  OBI5666  Astragalus trichopodus var. lonchus Carl B. Wolf 1931-3-6 1860 Orange 1.5 mi below Trabuco Camp Ground, Trabuco Cyn, W slope of Santa Ana Mts 549 Comment
  IRVC29877  Atriplex Mark A. Elvin, D. Kelch 2006-12-9 5306 Orange Newport Backbay; Big Canyon, lower end. Southern Coastal 3 Comment
  RSA737849  Atriplex R. E. Riefner 2006-10-19 06 -546 Orange City of Lake Forest, 0.5 mile N of Alton Pwy on E side of SR 241. 230 Comment
  RSA737850  Atriplex R. E. Riefner 2006-10-2 06 -466 Orange City of Lake Forest, N of Portola Pwy and immediately W of SR 241 freqay at avocado orchard, vicinity of Tomato Spring. 206 Comment
  RSA737377  Atriplex amnicola R. E. Riefner 2005-9-9 05 -658 Orange City of Dana Point, beach W of Pacific Coast Hwy and S of Salt Creek near Ritz Carlton Hotel. 8 Comment
Read comments Jul 22 2018
  RSA737231  Atriplex amnicola R. E. Riefner 2006-5-7 06 -178 Orange N end of City of San Clemente, along I5, N side, immediately S of Camino De Estrella exit ramp. 66 Comment
  RSA737242  Atriplex amnicola R. E. Riefner 2005-9-16 05 -666 Orange Upper Newport Bay, E of Bayside Dr. at confluence with Big Canyon. 6 Comment
  UCD97285  Atriplex canescens Lawrence M. Booth 1932-7-23 1301 Orange Corona del Mar, Newport Beach. Comment
  IRVC24454  Atriplex canescens subsp. canescens Fred M. Roberts 1985-11-20 2560 Orange Newport Back Bay, near Camp Survey Mark, Newport Beach 2 Comment
  RSA598021  Atriplex coulteri D. E. Bramlet 1994-2-3 2363 Orange San Joaquin Hills. At the head of Bommer canyon, approximatly 30m. NE of the rideline truck trail, near peak 1033. 296 Comment
  SBBG132292  Atriplex glauca R. E. Riefner Jr. 2006-3-19 06 -52 Orange near Avocado Ave and San Nicolas Dr, W of MacArthur Blvd; Newport Beach 77 Comment
  SD219022  Atriplex glauca R. E. Riefner Jr. 2002-5-4 20 87 Orange City of Dana Point, beach west of Pacifi Coast Highway near mouth of Salt Creek. 14 Comment
  SD243319  Atriplex glauca R. E Riefner 2005-12-13 05 784 Orange City of Lake Forest; ca. 0.5 mile N of Alton Pkwy along E side of SR-241 230 Comment
  RSA743559  Atriplex glauca R. E. Riefner 2002-5-4 2 -88 Orange City of Newport Beach, Upper Newport Bay, general vicinity of Bayview Wy. and Bayview Pl. 7 Comment
  RSA743658  Atriplex glauca R. E. Riefner Jr. 2007-8-22 7 -370 Orange Ladera Ranch/San Juan Capistrano area, Antonio Pkwy. ca. 0.6 miles S of Covenant Hills Rd. 170 Comment
  UC7046  Atriplex lentiformis subsp. lentiformis unknown 1896-6 Orange San Juan <Capistrano>; Seashore Comment
  RSA478320  Atriplex leucophylla Albert J. Perkins 1923-5-3 s.n. Orange Laguna Beach. Comment
  UC537061  Atriplex leucophylla P. A. Munz 1934-3-26 13137 Orange edge of salt marsh Newport Beach Newport Beach 4 Comment
  UC219363  Atriplex pacifica D. L. Crawford 1916-5-5 Orange Laguna Beach Laguna Beach (bluffs along shore, Southern California) 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
  POM201896  Atriplex rosea L. M. Booth 1932-7-4 s.n. 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
  HSC84220  Atriplex semibaccata B. Pitzer, L. F. LaPre 1986-10-20 309 Orange Siphon Reservoir, ca. 5 mi. NE of Irvine, and ca. 1 mi. NE of intersection of Irvine Blvd. and Sand Canyon Ave. 122 Comment
  SEINET155912  Atriplex semibaccata Norman C. Cooper 1942-11-9 889 Orange Balboa. Comment
  RSA248  Atriplex semibaccata J. T. Howell 1927-7-27 483 Orange Near ranch houses, Rancho Santa Ana 152 Comment
  UC536973  Atriplex serenana var. davidsonii Lawrence M. Booth 1932-7-1 1248 Orange Newport Lagoon Comment
  CAS-BOT-BC140679  Atriplex suberecta Tom Perring; Tracy Pinckard 1994-3-2 s.n. Orange South Coast: Tustin, Marine Helicopter Station at the corner of Moffett Drive and Jamboree Rd. 11 Comment
  SD178169  Atriplex suberecta Tom Perring, Tracy Pinckard 1994-3-2 Orange South Coast: Tustin, Marine Helicopter Station at the corner of Moffett Drive and Jamboree Rd. Growing along a ditch in an agricultural area. 10 Comment
  RSA65356  Atriplex truncata F. W. Peirson 1924-8-29 5073 Orange 4 miles south of Santa Ana. Comment
  HSC24443  Atriplex watsonii Christopher Davidson 1970-7-27 1502 Orange Bolsa Chica salt marsh, 1 mi. S of Warner Ave., opposite Seal Beach Comment
  POM201899  Atriplex watsonii L. 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
  RSA734992  Avena barbata A. C. Sanders, T. B. Salvato 2008-5-13 35378 Orange Lomas de Santiago, Santiago Canyon above (S of) mouth of Hangman Tree Canyon, just below Modjeska Canyon confluence 366 Comment
  POM202370  Avena barbata L. M. Booth 1932-5-12 1040 Orange Newport Bay. Comment
  RSA590948  Avena barbata Fred M. Roberts 1991-5-2 4777 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., UTM Z113718000mN, 4 29 200m E 110 Comment
  OBI7908  Avena fatua Kurt R. Neisess 1976-1-3 s.n. Orange Collected in the Fullerton Hills Comment
  RSA732058  Avena fatua A. C. Sanders, Fred M. Roberts 2008-3-25 34516 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  RSA696691  Avena sativa Keith E. Hoffmaster 1927-5-5 s.n. Orange Santa Ana. Comment
  CHSC26009  Baccharis douglasii James Henrickson 1970-8-22 5292 Orange 2 1/2 miles NNW of Huntington Beach in dry northern part of Bolsa Chica Salt Marsh. 0 Comment
  RSA151095  Baccharis douglasii Peter H. Raven 1961-10-15 16861 Orange Coast Hwy 2 miles SE of Sunset Beach 0 Comment
  LA103539  Baccharis emoryi Barry A. Prigge; 1983-12-17 5519 Orange Santa Ana Marsh and adjacent lowlands, southeasternmost part of oil field just N of Pacific Coast Highway between remnant Santa Ana River channel and dirt road 1 Comment
Read comments Jun 12 2013
  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
  UCR119304  Baccharis malibuensis R. E. Riefner Jr., Adrian Wolf 2000-8-23 20- 732 Orange Santa Ana Mountains, North Ranch Policy Plan Area. Fremont Canyon: north of Santiago Creek and immediately south of major stream fork 305 Comment
Read comments Jan 6 2018
  UCR205870  Baccharis malibuensis R. E. Riefner Jr., T. Smith 2007-6-22 07- 275 Orange Santa Ana Mountains, Irvine Ranch Reserve, Fremont Canyon Conservation Easement, east Fremont Canyon, Black Star SCE Road 545 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
  RSA613761  Baccharis pilularis B. Pitzer, T. Tennant 1997-11-8 3374 Orange Crystal Cove State Park, Pelican Point Area, grassland area between Pacific Coast Hwy and the bike trail. 30 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
  UCR240089  Baccharis pilularis Dick Newell, Don Millar 2012-10-9 304 Orange South Coast, Laguna Canyon, Mule Deer (Upper Laurel) Trail 248 Comment
  RSA357140  Baccharis salicifolia R. F. Thorne 1975-4-6 45577 Orange Head of Newport Bay. Comment
  RSA731951  Baccharis salicifolia Fred M. Roberts 2007-12-12 6707 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
  UCR215309  Baccharis salicifolia Fred M. Roberts, Eliza L. Maher 2008-3-26 6799 Orange South Coast, Dana Point; Dana Point Headlands, Center for Natural Lands Mgmt. Preserve near Strands Road gate, 0.8 km west of Marine Institute, Dana Point Harbor 71 Comment
  JEPS40678  Baccharis salicifolia subsp. salicifolia Alice King 1908-4-1 Orange Santiago Creek Comment
  UC1532995  Baccharis salicifolia subsp. salicifolia Robert F. Thorne 1975-4-6 45577 Orange Head of Newport Bay Comment
  CAS-BOT-BC106666  Baccharis salicina Ira L. Wiggins 1965-11-6 20338 Orange Kraemer Oil Estates, near well No. 14, near end of county road constituted by continuation of Orangethorpe Avenue Comment
  UCD129396  Baccharis salicina P. B. Kennedy 1925-1-12 1 Orange Irvine Ranch, on range. Comment
  UCD129399  Baccharis salicina A. C. Sanders 1990-10-6 10199 Orange Newport Bay, North Star County Beach area on the SW end of the bay, ca. 2 km inland of Hwy 1. 1 Comment
  UCR101363  Baccharis salicina A. C. Sanders, P. J. MacKay, Tim Thomas, O. F. Clarke 1998-10-17 22265 Orange Coastal flats, Bolsa Chica, near Bolsa Bay, south of Warner Ave., east of the Pacific Coast Highway .3 Comment
  UCR247333  Baccharis salicina Dick Newell, Judy Booth 2013-10-6 341 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, North Main Divide Road 300 m NE of junction with Long Canyon Road 1035 Comment
  UCSB36207  Baccharis salicina Ferren, Wayne; Roberts, Fred 1980-8-27 Orange Newport Back Bay trending NW from Bayside Drive, ca. 3.5 km. NE of Rt. 1, Newport Beach Comment
  UCR194992  Baccharis sarothroides A. C. Sanders, Fred M. Roberts 2008-8-7 35997 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along Windy Ridge Rd. near wash crossing, 1.0 mi. SSE of Walnut Canyon Reservoir 232 Comment
  RSA638194  Baccharis sergiloides Scott D. White 1998-10-15 7187 Orange Yorba Linda: 1/2 mile south of Telegraph Cyn. Between Ohio St. and Fairmont. Proposed for development. 152 Comment
  SD181717  Baccharis sergiloides Scott D. White 1998-10-15 7187 Orange Yorba Linda, 0.5 mile south of Telegraph Canyon between Ohio St. and Fairmont. 149 Comment
  RSA699553  Baccharis viminea Kenneth Beard 1934-02 s.n. Orange Walnut grove on Freeman Street, Santa Ana. Comment
  RSA699555  Baccharis viminea Minor Warne 1934-02 s.n. Orange Santa Ana Mountains Comment
  SEINET11861792  Baccharis viminea J. F. Bright, Wyman, C. 1933-4-8 8197 Orange near Del Toro Comment
  CAS-BOT-BC443960  Bacopa monnieri R. E. Riefner, Jr. 2012-7-1 12 -295 Orange City of Mission Viejo, Oso Creek, ca. 1.3 mi N of Paseo De Colinas Ave. on Camino Capistrano Ave. 87 Comment
  CAS-BOT-BC334499  Bahiopsis laciniata R. E. Riefner, Jr. 2013-4-5 13 -56 Orange Anaheim Hills, vicinity Hidden Canyon Rd. at Avenue De Santiago 305 Comment
  SBBG47293  Bassia hyssopifolia R. N. Philbrick 1973-8-31 Orange marsh just E of University of California, Irvine Comment
  SBBG47295  Bassia hyssopifolia R. N. Philbrick 1973-8-31 Orange marsh just E of University of California, Irvine Comment
  LA105231  Batis maritima Barry A. Prigge; 1988-9-11 8302 Orange eastern edge of Newport Beach, ca 0.25 mi. E of Pacific Coast Hwy bridge over Santa Ana River/Greenville-Banning channels, along old Santa Ana River channel near oil wells 0 Comment
  UCR224044  Batis maritima Justin M. Wood 2009-12-1 1388 Orange South Coast, Santa Ana River, marsh just upstream of Pacific Coast Highway 2 Comment
  RSA790  Bebbia juncea J. T. Howell 1927-6-2 13 Orange Sandstone Ridge, Botany Garden, RSA. 152 Comment
  UC68874  Bebbia juncea var. aspera H. M. Hall 1905-7-1 6729 Orange Santa Ana River 137 Comment
  LA204060  Berberis pinnata subsp. pinnata W. E. Pequegnat; 1937-9-3 77 Orange Santa Ana Mountains, Santiago Peak 1066 Comment
  RSA732246  Bloomeria crocea A. C. Sanders, Fred M. Roberts 2008-4-22 34997 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
  UCR140788  Bloomeria crocea Robin G. Marushia 2004-5-4 008 Orange Southern Coast, Crystal Cove State Park, interior of El Moro Canyon, east side of canyon, utility pole turnout above riparian area crossing 183 Comment
  UCR192225  Bloomeria crocea A. C. Sanders, Fred M. Roberts 2008-5-6 35266 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
  UCSB12763  Bloomeria crocea Whittington, M. 1962-4-20 Orange Santiago Road about 1 mile west of Irvine Lake Comment
  CAS-BOT-BC478932  Bloomeria crocea var. crocea Palmer Stockwell 1935-5-12 1218 Orange 7 mi. E. of Mission San Juan, on Elsinore Rd. Comment
  RSA584713  Bloomeria crocea var. crocea Fred M. Roberts 1989-5-18 4373 Orange Santa Ana Mountains: Upper Gypsum canyon, above ridge road, ca. 6.4 km WSW Sierra Peak. 415 Comment
  CAS-BOT-BC434509  Boerhavia diffusa E. L. Paddock 1943-6-16 12735 Orange Santa Fe Railroad, Gypsum Station Grounds, just west of crossing east of Gypsum Comment
  UCSB54129  Bolboschoenus maritimus Roberts, Fred 1985-6-12 Orange Laguna Niguel: Alicia Pkwy., 2.1 km. by road SW La Paz Rd.;1.0 km. W Sulphur Creek Reservoir, UTM 37117mN, 433525mE 67 Comment
Read comments Feb 22 2019
  RSA734975  Brachychiton populneum A. C. Sanders, Fred M. Roberts 2008-6-17 35479 Orange Lomas de Santiago, Agustine staging area near Limestone Canyon Rd. gate at Santiago Cyn Rd. 260 Comment
  UCR158030  Brachypodium distachyon Adrian Wolf 1998-5-15 286 Orange South Coast, Dana Point Headlands, north of Scenic Dr. 67 Comment
  UCR170257  Brachypodium distachyon Scott D. White, Jennifer H. Jones 2005-4-26 10973 Orange Laguna Beach area., City of Laguna Beach. 549 Nyes Place. Undeveloped lot within a residential neighborhood. Proposed for new home Comment
  RSA678500  Brachypodium distachyon Fred M. Roberts, Robt. Allen, Carol A. Roberts 2003-5-11 5865 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
  CDA24705  Brassica nigra T. C. Fuller 1962-4-5 8143 Orange East of Highway 101, San Clemente. 0 Comment
  UCR131877  Brassica nigra J. Mallory, V. McCoy 1995-7-3 6454- 105 Orange Santa Ana Mountains: Blind Canyon, c. 0.5 mi. east of confluence with Santiago Canyon, on a W-facing slope. north of Irvine Lake 300 Comment
  UCR231158  Brassica nigra Dick Newell, Don Millar, Shara Harris 2011-6-21 189 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Agua Chinon Wash 225 Comment
  CDA3636  Brassica nigra T. C. Fuller 1962-4-5 814 .3 Orange East of Highway 101, San Clemente. 0 Comment
  OBI17601  Brassica rapa Kurt R. Neisess 1975-12-19 s.n. Orange In Yorba Linda Comment
  POM202597  Brassica rapa L. M. Booth 1932-7-21 s.n. Orange Anaheim Creek Comment
  UCD114850  Brassica rapa Ira L. Wiggins 1965-11-7 20359 Orange Between State College Blvd. and Troy High School campus, Fullerton. Comment
  CSUSB529  Brassica rapa subsp. sylvestris Shirley Hill 1963-3-23 630323 4 Orange Field in back of Enco Station on Carolina st. Placentia. Abandoned field with other weeds Comment
  RSA0073643  Brassica tournefortii Fred M. Roberts, Lee Ann Caranza, Eliza Maher 2009-4-7 7144 Orange South Coast Region: Dana Point Headlands: Dana Point CNLM Preserve, 0.7 km WNW Dana Point Marine Institute at Dana Point Harbor, near 2nd Lookout along trail. 49 Comment
  UCSB48079  Brickellia californica 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
  RSA584704  Brickellia nevinii Fred M. Roberts, Carol A. Roberts 1989-5-11 4352 Orange Gypsum Canyon, 2.9 km WSW Sierra Peak, about 3.3km S by road of Santiago Canyon Road. 189 Comment
  RSA658595  Brodiaea filifolia David E. Bramlet 2001-5-23 3145 Orange Prima Deshecha landfill. The site is located 671m southwest of the landfill entrance and 46m south of the existing ridgeline access road. 134 Comment
  CAS-BOT-BC144299  Bromus arizonicus Ira L. Wiggins 1966-4-22 20617 Orange Shoulder of pavement along Associated Road between Yorba Linda Boulevard and Imperial Highway. Comment
  RSA758895  Bromus carinatus A. C. Sanders, Fred M. Roberts 2008-4-22 35025 Orange Lomas de Santiago, Limestone Canyon, c. 2 miles SW of Silverado 366 Comment
  SD241668  Bromus carinatus A. C. Sanders 2008-4-29 35144 Orange Peninsular Range; Santa Ana Mountains: Lomas de Santiago, western end of Loma Ridge on road to sheriff's training facility, c. 1.5 miles SW of Santiago Reservoir (Black Star Canyon 7.5'Q) 334 Comment
  UCSB47948  Bromus carinatus Roberts, Dar 1980-5-3 Orange 2.0 km NW of jct between Hwy 74 and Main Divide Truck Trail 960 Comment
  RSA184128  Bromus diandrus I. L. Wiggins 1965-9-29 20267 Orange California State College at Fullerton, near entrance to campus. Comment
  RSA126901  Bromus hordeaceus A. Lewis 1934-04 [ 387 ?] Orange 0.5 mile E of Borrego Canyon 457 Comment
  UCR140787  Bromus hordeaceus Robin G. Marushia 2004-5-4 009 Orange Southern Coast, Crystal Cove State Park, interior of El Moro Canyon, east side of canyon, utility pole turnout above riparian area crossing 183 Comment
  UCR190962  Bromus hordeaceus A. C. Sanders, Fred M. Roberts 2008-4-22 35041 Orange Peninsular Range; Santa Ana Mtns., 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 457 Comment
  RSA41  Bromus hordeaceus J. T. Howell 1928-3-17 865 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA0013861  Bromus madritensis Fred M. Roberts 2012-4-24 7517 Orange San Joaquin Hills: Buck Gully, west of intersection of Ridge Park Road and Newport Coast Drive, 1.5 km W Signal Peak. 179 Comment
  UCR193601  Bromus madritensis A. C. Sanders, Fred M. Roberts 2008-5-6 35235 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 290 Comment
  RSA542559  Bromus pseudolaevipes Karlin G. Marsh 1989-6-23 s.n. Orange Santa Ana Mountains: Laurel Springs, Harding Truck Trail., UTM 3730550m N, 446250m E 1036 Comment
  RSA650419  Bromus rubens R. B. Newcom 1948-4-24 25 Orange approx. 3 miles N.W. of Irvine Park. Comment
  RSA696611  Bromus rubens Ranki s.n. Orange Casta Mesa Comment
  CDA22568  Bromus tectorum J. B. Anderson 1966-4-19 601 Orange Upper Newport Bay. 0 Comment
  CAS-BOT-BC36892  Cakile edentula var. edentula A. Davidson M. D. 1907-9-1 1770 Orange Newport. Comment
  RSA657669  Cakile maritima Michael J. Graeser 1988-5-17 44 Orange Huntington Beach. Bolsa Chica Ecological Reserve. Lower end of Outer Bolsa Bay. 100 ft. SE of parking lot at Warner and PCH. Comment
  SEINET11093551  Cakile maritima Unknown 1970-8-22 W- 5 Orange PLANTS OF CALIFORNIA Orange Co., California; ca. 4 miles NE of Huntington Beach on coastal strand adjacent to Bolsa Bay & Pacific Coast Hwy.; annual herb 4-6 dm. high with purplish fls.; common in Coastal Strand; growing in decomposed granite soil in sun iwth Oenothera & Baccharis. sea level Comment
  UCR113453  Calamagrostis koelerioides R. E. Riefner Jr. 2000-6-22 20- 572 Orange Santa Ana Mountains, North Ranch Policy Plan Area, NE property, along National Forest boundary, at powerline 756 Comment
  UC1618044  Calandrinia Donald G. Nelson 1933-7-16 163 Orange hills n. Fullerton 76 Comment
  SBBG122652  Calandrinia breweri A. C. Sanders, F. M. Roberts, A. O'Neal 2008-5-9 35314 Orange Weir Cyn, along fire line/bulldozer cut, ca. 1.5 mi E of Walnut Cyn Reservoir 346 Comment
  UCR203899  Calandrinia breweri R. E. Riefner Jr. 2008-4-15 08- 72 Orange Irvine Ranch Reserve, north Irvine Ranch, western middle Fremont Canyon area, Coalmine SCE Road 353 Comment
  RSA737846  Calandrinia breweri R. E. Riefner 2008-4-15 08 -72 Orange Irvine Ranch Reserve, North Irvine Ranch, western middle Freemont Canyon area, Coalmine SCE Rd. 353 Comment
  UCD100199  Calandrinia ciliata C. L. Hitchcock 1966-3-15 24132 Orange 1/2 mile e. of Brea. Comment
  RSA562810  Callicore rosea Steve Boyd, Timothy S. Ross 1992-5-20 7482 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
  RSA739270  Callistemon viminalis R. E. Riefner Jr. 2007-4-1 7 -163 Orange City of Laguna Niguel, Oso Creek, ca. 1.5 miles north from Paseo De Colinas Street on Camino Capistrano Street. 88 Comment
  UCR199267  Callistemon viminalis R. E. Riefner Jr. 2007-4-1 07- 163 Orange South Coast, city of Laguna Niguel, Oso Creek, c. 1.5 mi north from Paseo de Colinas Street on Camino Capistrano Street 88 Comment
  CDA5113  Callistemon viminalis R. E. Riefner Jr. 2007-3-18 07 -113 Orange City of Newport Beach, south shore of Newport Bay along Back Bay Drive, ca. 1 mile north of San Joaquin Hills Road. Comment
  CAS-BOT-BC132257  Calochortus catalinae Philip A. Munz 1949-5-26 13379 Orange Head of Sierra Canyon, Santa Ana Mts. 731 Comment
  JEPS61646 Image available Calochortus catalinae Alice King Apr 1908 Orange Santa Ana Mountains Comment
Read comments Feb 24 2018
  RSA48924  Calochortus catalinae Philip A. Munz 1949-5-26 13379 Orange Head of Sierra [Freemont] Canyon, Santa Ana Mountains. 732 Comment
  RSA769608  Calochortus catalinae E. W. Lathrop 1966-5-23 6098 Orange 4 miles northeast of Lake Irvine, Black Star Canyon, Cleveland National Forest, Trabuco District Comment
  RSA773558  Calochortus catalinae Fred M. Roberts 2008-6-3 7026 Orange Lomas de Santiago: Loma Ridge, East Fork Rattlesnake Canyon, ca. 2.3 km ENE of Rattlesnake Reservoir spillway and 2.2 km ENE Bee Peak 217 Comment
  RSA0108729  Calochortus catalinae J. T. Howell 1928-3-17 863 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  UC337918  Calochortus plummerae unknown 1891-8-15 Orange Santa Ana Canyon Comment
Read comments Feb 19 2014
  POM23718  Calochortus splendens Russell S. Woglum 1938-5-8 1617 Orange Ortega Highway between Capistrano and Elsinore. Comment
  RSA627760  Calochortus splendens Scott D. White 1998-3-24 6233 Orange University of California, Irvine Campus: Site of proposed Research Park, Southwest of main campus circle, ca. halfway between Beerkeley Avenue and new freeway (Bonita Canyon). 24 Comment
  RSA679228  Calochortus splendens Fred M. Roberts 2003-6-25 5942 Orange Santiago peak, north slopes along ridge east of Main Divide truck trail, 0.6km NNW summit. 1605 Comment
  UC1178589  Calochortus splendens Peter Kamb 1948-6-19 1107 Orange se slope Santiago Peak (Orange-Riverside Counties); Santa Ana Mts. 1219 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
  SEINET7067518  Calochortus weedii A. G. Vestal 1947-6-12 s.n. Orange Upper San Juan Canyon on Route 74 to Lake Elsinore in Cleveland National Forest. Coordinate datum: NAD27. UTM Zone 11, 452352mE, 3716538mN. Comment
  UC1294007  Calochortus weedii E. K. Balls 1958-6-27 23278 Orange 2.8 mi e Silverado Station; Santa Ana Mts., Silverado Canyon 731 Comment
  CAS-BOT-BC132659  Calochortus weedii var. intermedius H. F. Copeland 1938-6-29 1574 Orange Hills back of Laguna Beach Comment
  RSA0014077  Calochortus weedii var. intermedius Fred M. Roberts 2008-5-27 7003 Orange Lomas de Santiago: Loma Ridge, Hicks Cyn., c.a. 0.2km beyond Hicks Cyn., Gate, 2.2km WNW Bee Peak, Irvine Ranch conservancy 213 Comment
  RSA749792  Calochortus weedii var. intermedius D. E. Bramlet 2008-6-3 4287 Orange Upper Borrego Cyn, 136m SE of the access road and 1.5km west of Santiago Cyn Road 433 Comment
  RSA773557  Calochortus weedii var. intermedius Fred M. Roberts 2008-6-3 7027 Orange Lomas de Santiago: Loma Ridge, East Fork Rattlesnake Canyon, ca. 2.5 km NE of Rattlesnake Reservoir spillway and 2.6 km ENE Bee Peak 258 Comment
  SEINET3885376  Calochortus weedii var. intermedius D. Bramlet 1994-6-2 2378 Orange San Joaquin Hills. On ridgeline north of Little Sycamore Canyon. The site is locate 244 m NE of Little Sycamore Canyon and 1.3 km west of Laguna Cyn. Road. Laguna Beach 7.5 USGS quadrangle 37 19 160m. N X 4 29 160m E.; 0 165 Comment
  UCR208444  Calochortus weedii var. intermedius R. E. Riefner Jr. 2008-6-5 08- 146 Orange South Coast, near city of Orange, west side of Hicks Haul Road, Rattlesnake Canyon southwest of the asphalt plant; Irvine Ranch Reserve, Management Area 6 Comment
  UCR82621  Calochortus weedii var. intermedius O. F. Clarke 1994-6-17 s.n. Orange Laguna Canyon Comment
  RSA506434  Calochortus weedii var. weedii Kathy Harper 1988-7-16 s.n. Orange Cleveland National Forest, on Hwy 74 near El Cariso. SE of Hwy Comment
  UCR160851  Calochortus weedii var. weedii Mark S. Brunell 1991-7-4 s.n. Orange Peninsular Range; Santa Ana Mtns., Hwy 74 c. 3 miles east of San Juan Hot Springs 427 Comment
  PASA2306  Calycadenia tenella Frank W. Peirson 1922-5-18 Orange Santa Ana River 121 Comment
  RSA542424  Calycadenia tenella Fred M. Roberts 1988-5-13 3967 Orange Lomas de Santiago: Loma Ridge, Upper Limestone Canyon near spring, 2.3 km NW Bolero Lookout. 439 Comment
  UCR109765  Calystegia macrostegia R. D. Goeden, Don W. Ricker 1965-6-21 s.n. Orange Dana Point 61 Comment
  UCR191333  Calystegia macrostegia A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34616 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 290 Comment
  RSA562765  Calystegia macrostegia subsp. arida Steve Boyd 1992-5-19 7419 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
  SEINET7072487  Calystegia macrostegia subsp. cyclostegia A. G. Vestal 1963-3-27 s.n. Orange About 1.8 miles up Cai+-ada Gobernadora. Coordinate datum: NAD27. Comment
  UCR7767  Calystegia macrostegia subsp. cyclostegia Art Dawson 1968-5-4 s.n. Orange South Coast/Santa Ana Mtns. Foothills, Rancho Mission Viejo, Ortega Hwy near San Juan Capistrano, 0.5 mi. east of Gobernadora Canyon 91 Comment
  CAS-BOT-BC221302  Calystegia macrostegia subsp. intermedia John Thomas Howell 1927-6-9 2462 Orange Southern Puente Hills, in the Santa Ana Canon [Canyon] 152 Comment
  POM201638  Calystegia sepium subsp. limnophila L. M. Booth 1932-7-19 1279 Orange Bolsa Chica Comment
  RSA71116  Calystegia sepium subsp. limnophila F. W. Peirson 1926-9-26 7086 Orange Wintersberg. Near to sea level. Comment
  RSA33847  Calystegia soldanella N. C. Cooper 1944-6-3 1348 Orange Balboa Beach, On beach at sealevel. 0 Comment
  SD38598  Calystegia soldanella Edith A. Purer 1932-8-31 4878 Orange Along Highway 101. Comment
  HSC6359  Calystegia soldanella B. Francis 1964-5-2 42 Orange .5 mi. S of Newport Comment
  SEINET7126140  Calystegia soldanella N. J. Hartke 1953-4-2 13 Orange Balboa Beach Comment
  RSA678499  Camissonia bistorta Fred M. Roberts, Robt. Allen, Carol A. Roberts 2003-5-11 5843 Orange Dana Point Headlands: 0.8km SSW Richard Henry Dana School north of Marguerita Drive. 76 Comment
  RSA498  Camissonia californica J. T. Howell 1927-6-5 39 Orange Rancho Santa Ana, near east boundary. 152 Comment
  RSA732249  Camissonia californica A. C. Sanders, Fred M. Roberts 2008-4-22 35002 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
  CSUSB191  Camissonia cheiranthifolia subsp. suffruticosa Steve Kulju 1974-5-27 Orange Seal Beach; One mile southeast of the city of Seal Beach on State Highway 1. 4 Comment
  RSA254974  Camissonia cheiranthifolia subsp. suffruticosa C. W. Tilforth 1975-3-9 1039 Orange Salt water marsh at north-east shoreline of Upper Bay, Newport Beach. Comment
  UCR191366  Camissonia hirtella A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34624 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 290 Comment
  SDSU3323  Camissoniopsis bistorta H. Wedberg 1958-3-29 172 Orange On MacArthur Blvd., 0.4 mile north of junction with Coast Highway at Corona del Mar. 54 Comment
  UC306300  Camissoniopsis cheiranthifolia subsp. suffruticosa D. L. Crawford 1916-7-28 Orange Abalone Point Laguna Beach Region (sand dunes) Comment
  UC635393  Camissoniopsis cheiranthifolia subsp. suffruticosa H. L. Mason 1926-4-25 2919 Orange five mi s Laguna Comment
  CAS-BOT-BC37129  Capsella bursa-pastoris Ira L. Wiggins 1966-3-22 20543 Orange Near bottom of Silverado Canyon, near end of road about 5 miles above Ranger Station, Cleveland National Forest. Comment
  CAS-BOT-BC37126  Capsella bursa-pastoris Ira L. Wiggins 1966-2-16 20445 Orange Orange grove on north side of Yorba Linda Boulevard, near corner of Associated Road, Fullerton. Comment
  HSC4145  Cardionema ramosissimum J. W. Johnson 1961-3-29 Orange Newport Beach, slope overlooking Upper Newport Bay. Comment
  UCR79247  Carduus pycnocephalus Steve Boyd, T. Ross 1992-5-19 7427 Orange Santa Ana Mtns., San Mateo Wilderness Area. Lucas Canyon Trail. 412 Comment
  UCSB48219  Carduus pycnocephalus Roberts, Fred 1981-6-20 Orange Dana Point; 0.7 km. NNE Dana Hills High School 67 Comment
  UCR174023  Carex barbarae A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33009 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
  SD245174  Carex barbarae R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49573 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74). Comment
  SBBG52701  Carex globosa C. Davidson 1977-5-18 5621 Orange Bear Springs, Santa Ana Mtns 1219 Comment
  CAS-BOT-BC119004  Carex pellita Helen D. Geis 1902-4-1 559 Orange District Banks, near Santa Ana. Comment
  CAS-BOT-BC118482  Carex praegracilis Helen D. Geis 1902-1-1 505 Orange Unspecified Comment
  POM201835  Carex schottii L. M. Booth 1932-6-4 1148 Orange Newport Lagoon. Comment
  RSA797395  Carex spissa Keith E. Hoffmaster 1934-7-15 s.n. Orange Santa Ana Mts (Modjeska) Comment
  UCSB52779  Carex tumulicola Boutin, F. 1967-4-23 Orange San Clemente Island: E side of island; next major drainageway and canyon SE of Lemon Tank; at seasonal pool Comment
Read comments Dec 13 2020
  CDA25905  Carpobrotus chilensis Mark A. Elvin, D. G. Kelch 2006-12-9 5292 Orange Southern Coastal; Newport Backbay; Big Canyon, lower end. Comment
  POM771  Carpobrotus chilensis D. L. Crawford 1916-8-1 s.n. Orange Aliso Point Comment
  RSA707  Castilleja affinis J. T. Howell 1927-6-2 11 Orange Sandstone Ridge, Botany Garden, RSA. 152 Comment
  UCR140803  Castilleja affinis Robin G. Marushia 2004-4-16 022 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
  JEPS21372  Castilleja affinis subsp. affinis Milo S. Baker 1958-5-20 13304 Orange Newport Bay Comment
  RSA743515  Castilleja exserta subsp. exserta Fred M. Roberts 2008-4-9 6866 Orange Dana Point: Dana Point Headlands, CNLM Preserve near Outlook 2, 0.7 km W Marine Institute (Dana Point Harbor). 52 Comment
  RSA160583  Castilleja foliolosa J. D. Olmsted 1959-5-1 521 Orange N of Hidden Ranch in Black Star Canyon and 100 yards NW of Rattlesnake Rock, 5 miles E of Irvine Res, Snta Ana Mtns to Irvine Lake. 747 Comment
  RSA450839  Castilleja foliolosa J. B. Anderson 1966-3-7 419 Orange San Joaquin Hills. Near bottom of Moro Canyon. 91 Comment
  JEPS8829  Castilleja minor subsp. spiralis L. M. Booth 1932-8-9 1371 Orange Newport Bay Comment
  RSA696336  Catalpa hybrida Marjorie Moody 1947-05 s.n. Orange No. Main St., Santa Ana, California. Comment
  RSA680536  Caulanthus heterophyllus Scott D. White 2003-3-21 8802 Orange Santa Ana Mountain Foothills: Rancho Mission Viejo. East-facing slopes above an unnamed tributary to San Juan Creek. 122 Comment
  RSA682761  Caulanthus heterophyllus Scott D. White, Amanda Duchardt 2003-3-27 8854 Orange Canyon bottom and west facing slopes above Canada Gobernadora. 91 Comment
  UCR191458  Caulanthus heterophyllus A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34652 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
  CAS-BOT-BC48490  Ceanothus crassifolius D. O. Burge 2007-3-22 805 b Orange Santa Ana Mountains, Cleveland National Forest, 2.3 road miles (3.7 km) from Hwy 74 on USFS Road 3S04, Comment
  RSA542417  Ceanothus crassifolius Fred M. Roberts 1988-3-15 3854 Orange Rancho Mission Viejo: Verdugo Canyon, 0.8 km SE Lucas Survey Mark. 247 Comment
  UC1281316  Ceanothus crassifolius H. E. McMinn 1935-6-22 3921 Orange w Corona; Santa Ana Mts. Comment
  RSA703699  Ceanothus crassifolius var. crassifolius Fred M. Roberts, Arthur Davenport 2004-2-20 6026 Orange Santa Ana Mtns.: San Juan Canyon, SR 74, south side of road, 0.62 km SW San Lower San Juan Picnic Ground; 1.89 km WNW Sitton Peak. 390 Comment
  RSA542418  Ceanothus integerrimus Fred M. Roberts, Karlin G. Marsh 1987-5-14 3440 Orange Santa Ana Moutains: Upper Trabuco Canyon, Trabuco Canyon Trail , 1.3 km NE Los Pinos Peak 1231 Comment
  RSA16472  Ceanothus integerrimus var. californicus Percy C. Everett 1935-6-19 7236 Orange Trabuco Canyon, 1mile below W summit of truck trail. 1006 Comment
  RSA798602  Ceanothus leucodermis Robert F. Thorne, E. W. Lathrop 1977-5-18 49741 Orange Santa Ana Mountains: summit of Santiago Peak. 1733 Comment
  RSA12375  Ceanothus megacarpus Carl B. Wolf 1934-3-21 5577 Orange Santa Ana River, Santa Ana Canyon, 1/2 mi. S.W. of Mexican Houses, Rancho Santa Ana. 122 Comment
  RSA735268  Ceanothus megacarpus Minor Warne 1934-03 s.n. Orange Gypsum canyon Comment
  SD236395  Ceanothus megacarpus A. C. Sanders, Fred M. Roberts, Amber ONeal, D. E. Bramlet 2008-5-9 35301 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, along old dirt road, c. 1.25 mi ESE of Walnut Cyn Reservoir. 340 Comment
  RSA801987A  Ceanothus megacarpus var. megacarpus R. H. McArthur 1934-2-17 s.n. Orange Gypsum Canyon. Comment
  SBBG4382  Ceanothus megacarpus var. megacarpus M. Van Rensselaer 1941-12-7 1748 Orange facing the sea and overlooking S Laguna, ca. 3 mi S of Laguna Beach Comment
  RSA12928  Ceanothus oliganthus Carl B. Wolf 1935-4-7 6318 Orange San Juan Canyon, Ortega Hwy, 2 miles east Orange County. 762 Comment
Read comments Oct 7 2013
  RSA790668  Ceanothus oliganthus Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49701 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  RSA790670  Ceanothus oliganthus Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49699 Orange Northern Santa Ana Mountains: Sierra Peak Comment
  RSA797657  Ceanothus oliganthus Robert F. Thorne, E. W. Lathrop 1977-5-18 49760 Orange Santa Ana Mountains: at head of Trabuco Canyon Trail Comment
  UCR234152  Ceanothus oliganthus Dick Newell, Judy Booth 2012-3-30 239 Orange Peninsular Range; Santa Ana Mtns., Maple Springs Road, Cleveland National Forest 258 Comment
  POM98118  Ceanothus oliganthus F. W. Peirson 1925-4-11 5735 Orange slope above mill, in Silverado Canyon, Santa Ana Mountains. 915 Comment
  UCSB48364  Ceanothus oliganthus var. oliganthus Roberts, Fred 1982-4-18 Orange SANTA ANA MTNS.: Upper Hot Springs Cyn., 0.1km SW Falcon Group Camp; 2.0km SE Los Pinos Peak 1075 Comment
  LA44923  Ceanothus oliganthus var. sorediatus W. Pequegnat; 1938-3-19 sn Orange Holy Jim Trial 944 Comment
  CAS-BOT-BC51707  Ceanothus papillosus E. W. Lathrop 1976-11-1 7602 Orange Pleasant Peak, Main Divide truck trail, north slope 1219 Comment
  CHSC116480  Ceanothus papillosus var. roweanus R. F. Thorne; C. W. Tilforth, E. W. Lathrop 1977-4-27 49697 Orange Northern Santa Ana Mountains: Sierra Peak. Hydrothermally altered serpentine substrate with limited scrub growth. Comment
  OBI6051  Ceanothus spinosus Carl B. Wolf 1941-8-15 11151 Orange Santa Ana Mts, W slope Santiago Truck trl to Santiago Pk 1.2 mi above F.S. Gate 610 Comment
  RSA0029934  Ceanothus spinosus Fred M. Roberts 2013-5-30 7776 Orange Lomas de Santiago: Santiago Creek Wash, at Santiago Canyon Road bridge (south side), 0.3 km W jct. Silverado and Santiago Canyon Roads. 299 Comment
  RSA30495  Ceanothus spinosus L. R. Abrams 1901-6-16 1854 Orange Trabuco Canon. Comment
  RSA637494  Ceanothus spinosus Valerie L. Soza, LeRoy Gross 1999-6-8 503 Orange Santa Ana Mountains: Santiago and Modjeska Canyons, above Tucker Wildlife Sanctuary, above the town of Modjeska 518 Comment
  RSA698615  Ceanothus spinosus Mabel Harvey s.n. Orange Silverado Canyon Comment
  RSA80676  Ceanothus spinosus P. A. Munz, E. K. Balls 1952-8-19 17928 Orange Along Ortega Hwy, west slope of Santa Ana Mts. 305 Comment
Read comments Nov 1 2013
  SD41970  Ceanothus spinosus Darley F. Howe 1947-4-29 Orange Santa Ana Mts. Comment
  UCR103213  Ceanothus spinosus Scott D. White 1997-2-19 4691 Orange Santa Ana Mtns, above Modjeska Canyon; proposed water tank site 488 Comment
  RSA5269  Ceanothus tomentosus var. olivaceus Carl B. Wolf, B. D. Stark 1932-12-19 4436 Orange Main divide of Santa Ana Mts. between Sierra Peak and Skyline Drive. 762 Comment
  RSA752850  Centaurea melitensis Fred M. Roberts 2009-4-21 7154 Orange Dana Point Headlands: southern cliffs, 0.7 km W Marine Institute at Dana Point Harbor. CNLM Dana Point Preserve. 3 Comment
  SEINET179460  Centaurea melitensis L. M. Booth 1932-5-26 1117 Orange Newport Bay Comment
  UCR100448  Centaurea melitensis B. G. Pitzer 1996-4-30 2783 Orange South Coast, Upper Newport Bay, Calif. Dept. Fish & Game Ecological Reserve, off (W of) Jamboree Road 6 Comment
  RSA791494  Centaurea melitensis R. F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49610 Orange Santa Ana Mountains: along Ortega Highway (74) about 2.5 miles above San Juan Fire Station Comment
  POM13256  Centaurea repens E. Johnson 1922-6-12 s.n. Orange Greenville. Comment
  UCR174464  Centaurea solstitialis A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33063 Orange Peninsular Range; Santa Ana Mtns., San Juan Canyon, roadside of Hwy 74 c. 1 mile below (W of) Lower San Juan Picnic Area 396 Comment
  CAS-BOT-BC284477  Centaurea solstitialis T. C. Fuller 1962-6-7 8869 Orange N. end of Fullerton Golf Course, Fullerton Comment
  CAS-BOT-BC284478  Centaurea solstitialis T. C. Fuller 1962-6-7 8870 Orange N. end of Fullerton Golf Course, Fullerton Comment
  RSA573296  Centaurium venustum Steve Boyd, T. S. Ross 1994-9-14 8353 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area of the Cleveland National Forest, Lucas Canyon just downstream of Lucas Canyon Trail crossing. 305 Comment
  RSA710405  Centaurium venustum Fred M. Roberts 2005-10-3 6293 Orange San Juan Capistrano: San Juan Creek wash, La Novia Road Bridge to 100m E of bridge, 1.4km E Mission San Juan Capistrano, 27 Comment
  RSA788969  Centaurium venustum Robert F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49576 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74). Comment
  CAS-BOT-BC288843  Centromadia parryi subsp. australis David D. Keck 1933-9-17 2524 Orange Westminster Comment
  CAS-BOT-BC288849  Centromadia parryi subsp. australis Louis C. Wheeler 1932-6-25 849 Orange 5 miles W Santa Ana 30 Comment
  CAS-BOT-BC520401  Centromadia parryi subsp. australis R. E. Riefner, Jr. 2014-8-28 14 -310 Orange City of Costa Mesa, TAlbert Regional Park, immediately W of Starfish Ct., E of the Santa Ana River 4 Comment
  RSA758074  Centromadia parryi subsp. australis D. E. Bramlet 2008-9-17 4306 Orange Upper Newport Bay, West Mesa, 76m E Irvine Ave. & 305m S of University Dr. 20 Comment
  SD134529  Centromadia parryi subsp. australis Craig Reiser 1991-3-19 Orange Newport Beach Bay, W of Delhi Channel Comment
  UCR191437  Cerastium glomeratum A. C. Sanders, Fred M. Roberts 2008-4-8 34731 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, head of Hicks Canyon, S of Santiago Reservoir 351 Comment
  RSA516  Ceratophyllum demersum J. T. Howell 1927-8-13 625 Orange Santa Ana River Bottom 152 Comment
  RSA156045  Cercocarpus betuloides Peter H. Raven 1962-5-18 17753 Orange [Santa Ana Mountains] Main Divide Truck Trail at saddle about 1 mile north of Santiago Peak. 1494 Comment
  UCR221892  Cercocarpus betuloides Dick Newell, Don Millar 2010-10-15 40 Orange South Coast, San Joaquin Hills, Laguna Wilderness parkm on the Willow Trail 220 Comment
  CAS-BOT-BC402200  Cercocarpus betuloides var. betuloides R. F. Thorne; C. W. Tilforth; E. W. Lathrop 1977-4-27 49704 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  RSA810  Chaenactis artemisiifolia J. T. Howell 1927-6-5 36 Orange just to E of Rancho Santa Ana 152 Comment
  POM122612  Chaenactis glabriuscula var. glabriuscula Marcus E. Jones 1926-3-10 s.n. Orange Near Santa Ana Canyon. Comment
  UCR209659  Chaenactis glabriuscula var. glabriuscula Fred M. Roberts 2008-5-16 6975 Orange South Coast, Dana Point Headlands, Center for Natural Lands Mgmt. Preserve, along north slopes above Dana Strand Beach, 0.8 km west-northwest of the Marine Institute, Dana Point Harbor 45 Comment
  POM6049  Chaenactis glabriuscula var. lanosa L. R. Abrams 1903-4-13 3254 Orange Buena Park Comment
  POM294107  Chaenactis glabriuscula var. megacephala Lyman Benson 1946-4-27 12053 Orange Corona Del Mar; Drainage area: Pacific Ocean. 15 Comment
  RSA435978  Chamaesyce albomarginata Josephine Derigo 1941-7-17 s.n. Orange Anaheim. Comment
  RSA734739  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
  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
  RSA685668  Cheilanthes clevelandii T. R. Pray 1956-4-15 1047 Orange San Juan Canyon. Comment
  RSA631393  Cheilanthes covillei Valerie L. Soza, LeRoy Gross 1999-6-7 478 Orange West side of Modjeska Peak, along Main Divide Road. 1448 Comment
  IRVC3132  Cheilanthes newberryi A. S. Boughey 123 Orange [San Juan Canyon], Ortega Hwy, 1mi E San Juan Guard Sta. Santa Ana Mountains 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
  IRVC14987  Chenopodium album Anonymous 1976-10-28 Orange Nieblas School. Fountain Valley Comment
  RSA750067  Chenopodium album A. C. Sanders, Fred M. Roberts 2008-9-18 36065 Orange Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge 320 Comment
  UC536960  Chenopodium ambrosioides Lawrence M. Booth 1932-7-25 1312 Orange 1 1/2 mi from ocean; Santa Ana River Comment
  POM6323  Chenopodium ambrosioides L. T. Street, G. Williams 1919-5-10 2750 Orange Turnbull Canyon. Near Whittier 305 Comment
  RSA234523  Chenopodium ambrosioides James Henrickson 1970-8-22 5298 Orange 2.5 miles NNW of Huntington Beach 0 Comment
  RSA734759  Chenopodium berlandieri A. C. Sanders, Fred M. Roberts 2008-5-6 35218 Orange Lomas de Santiago, lower Hicks Canyon near Irvine Ranch gate and road junction to cement plant 180 Comment
  UCR192993  Chenopodium berlandieri A. C. Sanders, Fred M. Roberts 2008-5-6 35218 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hicks Canyon near Irvine Ranch gate and road junction to cement plant 180 Comment
  RSA234525  Chenopodium berlandieri var. sinuatum James Henrickson 1970-7-24 5019 Orange 3 miles NW of Huntington Beach on sandy ''Rabbit'' Island in Bolsa Chica Salt March near Inner Bolsa Bay. 1 Comment
  RSA725467  Chenopodium berlandieri var. sinuatum Fred M. Roberts, Megan Lulow 2007-7-30 6551 Orange Fremont Canyon, 1.3 km NE Irvine Lake spillway, North Irvine Ranch Policy Area. 253 Comment
  RSA262  Chenopodium californicum J. T. Howell 1928-2-25 840 Orange Near Bee Canyon, Rancho Santa Ana. 152 Comment
  RSA687520  Chenopodium californicum Fred M. Roberts, D. E. Bramlet 2003-4-10 5648 Orange Rancho Mission Viejo: Donna O Neill Land Conservancy, ridge between Cristianitos Cyn. and Segunda Deshecha Canada, 1.54km W Gato Gate and 1.59km NW Edison substation. 262 Comment
  RSA747591  Chenopodium californicum Fred M. Roberts 2000-5-5 5319 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
  UCR192453  Chenopodium californicum A. C. Sanders, Fred M. Roberts 2008-3-25 34577 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
  UCSB52919  Chenopodium californicum Roberts, Jr., Fred 1983-3-10 Orange Dana Point Headlands; 0.4 km. W Dana Point Harbor; 0.7 km. S Richard Henry Dana School 80 Comment
  UC582776  Chenopodium strictum var. glaucophyllum P. A. Munz 1936-6-30 14174 Orange 5 mi s Garden Grove Comment
  POM225242  Chenopodium strictum var. glaucophyllum P. A. Munz 1936-6-30 14174 Orange 5 miles south of Garden Grove. Comment
  UCR146879  Chlorogalum parviflorum Kathleen Stockwell 2000-6-18 s.n. Orange South Coast, Dana Point Headlands 61 Comment
  POM256711  Chorizanthe fimbriata W. Pequegnat 1940-6-12 s.n. Orange Los Puios Portrero. 915 Comment
  UCSB38063  Chorizanthe fimbriata var. fimbriata Roos, John 1965-6-16 Orange Dana Point near Doheney Beach. Comment
  RSA588980  Chorizanthe procumbens D. E. Bramlet 1994-6-23 2388 Orange San Joaquin Hills. ''Pass area'' between Little Sycamore and Camarillo Canyons. The site is 945m of Camarillo Canyon Road and 5 m west of the existing dirt road. 122 Comment
  RSA743372  Chorizanthe procumbens Fred M. Roberts 2008-4-2 6842 Orange Dana Point: Dana Point Headlands, CNLM Preserve south of NE Gate, 0.5 km W Marine Institute (Dana Point Harbor). 45 Comment
  RSA785186  Chorizanthe procumbens D. E. Bramlet 1983-5-28 1388 Orange Dana Point, 154 m SW of Pacifc Coast Highway 73 Comment
  UCR266291  Chorizanthe procumbens D. E. Bramlet 2002-4-15 3267 Orange Pass area in Little Sycamore Canyon 122 Comment
  RSA587871  Chorizanthe procumbens Fred M. Roberts, Carol A. Roberts 1990-5-16 4629 Orange Santa Ana Mts.: small canyon southeast side of Irvine Mesa, 3.5 km N Bolero Lookout. 396 Comment
  CAS-BOT-BC255247  Chorizanthe staticoides Frank W. Peirson 1924-5-31 4644 Orange Laguna, near sea level 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
  RSA17170  Chorizanthe staticoides Percy C. Everett 1935-4-29 6711 Orange 7/10 of a mile west of Esperanza, Santa Ana canyon.. 152 Comment
  RSA182  Chorizanthe staticoides J. T. Howell 1927-6-8 61 Orange Botany Garden, Rancho Santa Ana. [original location] 152 Comment
  RSA548860  Chorizanthe staticoides Coleen Cory 1990-5-24 s.n. Orange Rancho Mission Viejo: Trampas Canyon, c.a. 1.5km S Hwy 74 (Township 8 S, Range 7 W, sec. 2). 150 Comment
  UC635059  Chorizanthe staticoides Herbert L. Mason 1926-4-25 2913 Orange 5 mi below Laguna; below Laguna Comment
  IRVC27934  Chrysanthemoides monilifera A. C. Sanders, Mark A. Elvin 2003-10-12 27324 Orange Irvine; UCI Arboretum, UCI campus near intersection of Jamboree Blvd and Campus Dr. Southern Coastal 15 Comment
  POM48464  Cirsium arvense F. W. Peirson 1924-10-19 5248 Orange Wintersberg. Comment
  RSA0070676  Cirsium occidentale var. californicum R. D. Goeden, D. W. Ricker 1965-6-21 s.n. Orange Pacific Coast: Dana Point. 76 Comment
  RSA821  Cirsium occidentale var. californicum J. T. Howell 1927-6-26 212 Orange Claymine Canon near Sierra Peak. [canyon] 244 Comment
  CAS-BOT-BC172418  Clarkia bottae Steve Boyd; Tim Ross 1992-5-19 7441 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of the wilderness in Lucas Canyon from crossing of creek by Lucas Canyon Trail, downstream to confluence with aliso Canyon. 335 Comment
  POM153245  Clarkia bottae C. L. Hitchcock 1928-5-5 49 Orange Mouth of Santa Ana Canyon. 150 Comment
  RSA0059997  Clarkia bottae Karl Price 1988-5-21 48 Orange An unnamed side canyon within Hot Springs Canyon. It is on Hot Springs Canyon Rd., 0.75 mi. North of Ortega Hwy. (74), 12.6 mi. East of San Juan Capistrano. 305 Comment
  UCR79273  Clarkia deflexa Steve Boyd, T. S. Ross 1992-5-19 7441 Orange S Santa Ana Mtns, San Mateo Canyon Wilderness Area. W edge of the wilderness in Lucas Canyon from crossing of creek by Lucas Canyon trail, downstream to confluence with Aliso Canyon. 335 Comment
  RSA652350  Clarkia deflexa Robert Lloyd 1948-5-22 s.n. Orange Santa Ana Canyon 226 Comment
  UCR192223  Clarkia purpurea A. C. Sanders, Fred M. Roberts 2008-5-6 35275 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, upper Limestone Canyon, 2.9 mi. NNW of El Toro 379 Comment
  POM201140  Clarkia purpurea subsp. quadrivulnera C. L. Hitchcock 1933-6-1 4996 Orange 1/4 mi SW of Muddy Springs near Roundtop peak, Rancho Santa Ana. 427 Comment
  RSA610412  Clarkia purpurea subsp. quadrivulnera R. S. Woglum 1932-4-16 s.n. Orange Trabuco Canyon, Santa Ana Mountains, Cleveland National Forest Comment
  SEINET7067524  Clarkia purpurea subsp. quadrivulnera A. G. Vestal 1947-6-12 s.n. Orange Grade to Trabuco Canyon. Coordinate datum: NAD27. UTM Zone 11, 445302mE, 3724321mN. Comment
  CAS-BOT-BC172374  Clarkia purpurea subsp. viminea L. R. Abrams 1901-6-10 1796 Orange Santiago Peak Trail Comment
  RSA458857  Clarkia purpurea subsp. viminea M. B. Dunkle 1938-6-23 5381 Orange San Juan Capistrano. Comment
  RSA0059921  Clarkia purpurea subsp. viminea L. R. Abrams 1910-6-15 1796 Orange Santiago Peak trail. Comment
  CAS-BOT-BC439945  Claytonia perfoliata subsp. mexicana C. B. Wolf 1931-3-6 1853 Orange Trabuco Camp Ground, Trabuco Canyon, west slope of the Santa Ana Mts. 609 Comment
  RSA610242  Claytonia perfoliata subsp. mexicana Fred M. Roberts, Tony Bomkamp 1997-3-13 4985 Orange RANCHO MISSION VIEJO: Christianitos Canyon near confluence of Gabino Canyon, 5.1km NE Clemente Survey Mark. 85 Comment
  UCSB48127  Clematis lasiantha Roberts, Fred 1981-4-11 Orange Santa Ana Mtns; San Juan Canyon; Hwy 74; 2.7km ENE San Juan Guard Station 325 Comment
  JEPS5750  Clematis ligusticifolia Lawrence M. Booth 1932-7-21 1290 Orange Anaheim Creek Comment
  LA207215  Clematis pauciflora W. E. Pequegnat; August 1937 58 Orange Santa Ana Mts Comment
  POM2489  Cleome isomeris P. A. Munz 1918-5-5 2188 Orange Laguna Beach. Comment
  UCR256937  Clinopodium chandleri Naomi Fraga, Duncan S. Bell 2009-5-11 2721 Orange Peninsular Range; Santa Ana Mountains, Chiquita Trail, Lion Canyon 762 Comment
  RSA449089  Cneoridium dumosum Thekla Mohr 1517 Orange Laguna. Comment
  RSA542395  Cneoridium dumosum Fred M. Roberts Jr. 1987-3-24 3271 Orange Laguna Beach: Goff Ridge, south of Nyes Place Rd., 0.9km NNE Goff Island. 169 Comment
  POM177568  Cnicus benedictus A. Gilman 1931-5-25 s.n. Orange Field Banning Comment
  RSA564111  Collinsia heterophylla var. austromontana B. Pitzer, S. Hemstreet 1992-5-27 1954 Orange Cleveland National Forest. Along road (3S04) to Blue Jay Group Campground, off State Hwy 74 (Ortega Hwy). Approx. 2 mi. (airline) W of El Cariso Campground. 762 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
  RSA0029945  Comarostaphylis diversifolia subsp. diversifolia Fred M. Roberts, Sandra Leatherman 2013-2-13 7719 Orange Santa Ana Mountains: Ridge south of central Santiago Canyon, near Joplin Trail, 3.7 km SE Modjeska (town). 792 Comment
  POM306305  Conium maculatum Henry J. Ramsey, Henry J. Ramsey 1938-6-5 1391 Orange Laguna Beach, Irvine Comment
  IRVC26825  Conium maculatum S. D. White, Brian Leatherman 1997-6-12 5310 Orange E of Dan Juan Capistrano: San Juan Creek between Hwy 74 bridge and Mission Vieja site (ca. 2 to 4 miles E of I-5/Hwy 74 jctn). Southern Coastal 46 Comment
  RSA184179  Conium maculatum I. L. Wiggins 1966-5-11 20661 Orange Carbon Canyon about 1 mile above its mouth. Comment
  RSA521  Conium maculatum J. T. Howell 1927-7-19 447 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  RSA5966  Conium maculatum C. B. Wolf 1932-9-13 4039 Orange Bryant Ranch, No. boundary between San Gabriel River Flood Control Dike & Well in SE 1/4 sect. 25., 1300 ft W of n.E. corner of S.E. 1/4 Sect. 25. T4S R12W. 6 Comment
  RSA653183  Convolvulus arvensis David Barrios 1991-5-1 16 Orange Yorba Linda, 1500 ft. northwest of Fairmont Ave and Quail Circle., (117 deg. 45' 00'' +4 28 / 33 deg. 52' 37'' + 37 51.5). 365 Comment
  RSA687516  Convolvulus simulans Fred M. Roberts, D. E. Bramlet 2003-4-10 5652 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, ridge between Cristianitos Canyon, 1.17 km SW Gato Gate and 1.02 km W Cristianitos Road. 175 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
  IRVC24224  Conyza coulteri Fred M. Roberts 1985-10-1 2292 Orange Silverado Canyon, Silverado Canyon Road, 1.0km by road E junction Santiago Canyon Road. Santa Ana Mountains 320 Comment
  RSA725944  Conyza floribunda R. E. Riefner 2006-10-8 06 -481 Orange South Coast: Irvine, San Diego Creek near 405 Freeway, between 405 and Laguna Rd. 51 Comment
  NY28945  Cordylanthus maritimus subsp. maritimus R. F. Thorne 1975-4-6 45586 Orange Head of Newport Bay Comment
  POM202727  Cordylanthus maritimus subsp. maritimus L. M. Booth 1932-7-19 1273 Orange Bolsas Marsh Comment
  UC1532993  Cordylanthus maritimus subsp. maritimus Robert F. Thorne 1975-4-6 45586 Orange head Newport Bay Comment
  CAS-BOT-BC287838  Coreopsis californica Marcus E. Jones 1926-3-10 s.n. Orange Near Santa Ana Canon Comment
  UCR195010  Coreopsis tinctoria A. C. Sanders, Fred M. Roberts 2008-8-7 35981 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
  CAS-BOT-BC101295  Corethrogyne filaginifolia David D. Keck 1932-9-30 1908 Orange Dana Point, near San Juan Capistrano Comment
  CAS-BOT-BC101297  Corethrogyne filaginifolia Marcus E. Jones 1924-8-26 s.n. Orange Newport Comment
  UCR224157  Corethrogyne filaginifolia var. virgata Fred M. Roberts 2008-7-10 7072 Orange South Coast, Dana Point Headlands, CNLM Preserve, along north slopes above Dana Strand Beach, 0.8 km west norhwest of Marine Institute, Dana Point Harbor 45 Comment
  IRVC24510  Coronopus didymus Fred M. Roberts 1986-3-14 2647 Orange University of California campus, south side of Alderich Park near Engineering Building, Irvine 33 Comment
  UCR217460  Coronopus didymus Mark A. Elvin 2003-2-23 2307 Orange South Coast, Irvine, San Joaquin Marsh along the berm of San Diego Creek 3 Comment
  RSA735026  Cotula australis Scott D. White, Justin M. Wood 2008-4-10 11846 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
  CAS-BOT-BC287223  Cotula australis C. L. Hitchcock; C. V. Muhlick 1964-3-17 23067 Orange 8 miles E of Yorba Linda, Santa Ana Canyon Comment
  UCR138397  Cotula coronopifolia Scott D. White, Brian Leatherman 1997-6-12 5335 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
  RSA696059  Cotyledon lanceolata Keith E. Hoffmaster 1928-5-29 s.n. Orange San Onofre. CP5. Comment
Read comments Dec 20 2019
  UC1543004  Crassula aquatica Donald G. Nelson 1935-4-15 303 Orange on rd. from Garden Grove to Costa Mesa (toward main hwy. from Santa Ana) Comment
  RSA0096944  Crassula connata Scott D. White 1998-3-24 6234 Orange University of California, Irvine Campus: Site of proposed Research Park. Southwest of main campus circle, ca. halfway between Beerkeley Avenue and new freeway (Bonita Canyon). 36 Comment
  RSA732122  Crassula connata A. C. Sanders, Fred M. Roberts 2008-4-8 34725 Orange Peninsular Range: Lomas de Santiago, Loma Ridge, head of Hicks Canyon. S of Santiago Reservoir. 351 Comment
  UCR215312  Crassula connata Fred M. Roberts 2008-3-27 6803 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
  RSA0135553  Crassula connata var. connata David E. Bramlet 2003-3-14 3345 Orange Coastal Plains & Basins; South Coastal Plain region: Newport Beach. 30.5m west of Avocado & 183m W of McArthur Blvd & 190m N of the Newport Beach Library. 49 Comment
  UC484241  Crassula connata var. erectoides C. B. Wolf 1931-3-6 Orange 1/2 mi. above Trabuco; w. slope Santa Ana Mts., Trabuco Canyon 457 Comment
  RSA0093742  Cressa truxillensis Fred M. Roberts 2014-4-21 7848 Orange South Coast. SAN JOAQUIN HILLS: Laguna Lake 1 (Upper Laguna Lake), south basin. 113 Comment
  RSA627790  Cressa truxillensis Scott D. White 1998-6-26 6781 Orange South Coast: Univ. of Calif. Irvine Campus. Along mapped intermittent blueline stream just N of Bonita Cyn Dr. 61 Comment
  UC277057  Cressa truxillensis D. L. Crawford Jul 1 1900-Aug 1 1900 Orange Laguna Beach Region Comment
  RSA0009408  Cressa truxillensis Marcus E. Jones 1924-8-26 s.n. Orange Newport. Comment
  UC219257  Crocanthemum scoparium var. vulgare Munz and Johnston 1922-5-18 5307 Orange Santa Ana River Canyon, in a side canyon Santa Ana River Canyon 274 Comment
  OBI30078  Croton californicus L. Fountain 1966-4-1 72 Orange Near Rancho Santa Ana, at the end of Orangethorpe Ave Comment
  UCR220965  Croton californicus Dick Newell, Don Millar 2010-4-27 027 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Limestone Ridge Rd. at junction of Markel Spur Rd., overlooking The Sinks 427 Comment
  UCSB47973  Croton californicus Roberts, Jr., Fred 1980-2-17 Orange Along north side of Dana Strand Road, on the bluffs west of Dana Mrina, Dana Point 56 Comment
  RSA5806  Croton californicus var. tenuis C. B. Wolf 1932-6-28 3776 Orange Bryant Ranch: along western half of north boundary of 40 acre Valencia orange grove at Bryant Ave. and Hansen Road. 9 Comment
  SEINET10453718  Croton setiger Charlene A. Bennett 1976-7-20 Bennett 427 Orange Collected along Crown Valley Parkway, 1 mi SW of I-5. 30 Comment
  UCR123430  Crypsis schoenoides G. James 1968-10-1 s.n. Orange Huntington Beach, near Beach Boulevard and Adams Boulevard. Comment
  RSA542556  Crypsis schoenoides Fred M. Roberts 1987-3-31 3302 Orange Lomas de Santiago: Lomas [Loma] Ridge, upper Serrano Canyon, east fork, reservoir, 2.7 kilometers SE Bolero Lookout, UTM 3727950m N, 441250m E. 350 Comment
  POM49205  Cryptantha clevelandii L. R. Abrams 1901-4-13 1780 Orange Laguna, San Joanquin Hills. Comment
  RSA586740  Cryptantha clevelandii R. E. Riefner 1994-5-22 94 -379 Orange W Terrce area of San clemente State Beach along Calafia road. Comment
  IRVC256  Cryptantha intermedia S. Gilbert 1965-4-8 Orange Trabuco Canyon. Santa Ana Mountains Comment
  RSA542657  Cryptantha intermedia Fred M. Roberts 1988-4-10 3902 Orange Lomas De Santiago: Loma Ridge, Upper Limestone Canyon, c.a. 3.2 kilometer NNW Bolero Lookout. 347 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
  UCR192499  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
  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
  RSA681267  Cryptantha microstachys Scott D. White, Michael Honer 2003-5-29 9436 -A Orange Rancho Mission Viejo. Steep, gen. south-facing slopes above trib. to Trampas Canyon, ca. 0.6 air mi. S of Ortega hwy and ca. ca. 0.5 mi west of Trampas Cyn. 122 Comment
  RSA0029035  Cryptantha microstachys Keith E. Hoffmaster 1934-4-22 349 Orange Santiago Canyon near Silverado. Comment
  IRVC17035  Cryptantha muricata var. muricata L. McCabe 1965-4-24 Orange Ortega Hwy. Santa Ana Mountains Comment
  CHSC37640  Cucurbita foetidissima T. B. Devine 1981-7-30 737 Orange At junction of Santiago Canyon Road and road to O'Neal Park. 335 Comment
  UCR209188  Cucurbita pepo A. C. Sanders, Fred M. Roberts 2008-9-18 36087 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
  CAS-BOT-BC80568  Cupressus forbesii P. A. Munz; I. M. Johnston 1922-5-18 5566 Orange Santa Ana Mts. 457 Comment
  RSA644959  Cupressus forbesii Richard E. Riefner 2000-1-18 20 -101 Orange NCCP North Ranch Policy Plan Area: Main Divide Road; top of Gypsum Canyon. 518 Comment
  NY16670  Cupressus guadalupensis var. forbesii C. B. Wolf 1935-1-2 6279 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
  NY16675  Cupressus guadalupensis var. forbesii C. B. Wolf 1935-1-2 6278 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
  CAS-BOT-BC224408  Cuscuta californica John Thomas Howell 1927-6-3 2420 Orange Southern Puente Hills in the Santa Ana Canon [Canyon] 152 Comment
  RSA0014076  Cuscuta californica Fred M. Roberts 2008-5-27 7004 Orange Lomas de Santiago: Loma Ridge, Hicks Cyn., c.a. 0.2km beyond Hicks Cyn., Gate, 2.2km WNW Bee Peak, Irvine Ranch conservancy 213 Comment
  RSA409705  Cuscuta californica F. R. Fosberg 1931-6-21 5143 Orange Silverado Canyon. Santa Anita Mts. Comment
  UCR193052  Cuscuta californica A. C. Sanders, Mitch Provance 2008-5-20 35405 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago area, Santiago Creek Canyon, c. 3/4 mile below Modjeska Canyon confluence 355 Comment
  RSA542644  Cuscuta californica Fred M. Roberts, Kathy Keane 1988-5-25 3980 Orange Rancho Mission Veijo: Lower Canada Chiquita, 2.5 kilometers SSE Medium Rancho Survey Marker. 85 Comment
  RSA571  Cuscuta ceanothi J. T. Howell 1927-7-21 455 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  RSA254969  Cuscuta salina C. W. Tilforth 1975-9-3 1037 Orange Northeast shoreline of Upper Bay, Newport Beach Comment
  IRVC29789  Cuscuta subinclusa Mark A. Elvin, Dean Kelch 2006-12-9 5312 Orange Irvine; San Diego Creek, edge of San Joaquin Marsh, beside University Dr., between Campus Dr. and Hwy 73. Southern Coastal 3 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
  RSA725513  Cuscuta subinclusa Fred M. Roberts, Robert L. Allen 2007-9-28 6617 Orange Lomas de Santiago: above lower Santiago Cyn. wash along Santiago Cyn. Rd. just south of Irvine Mesa, 3.3 km N Bolero Lookout. 332 Comment
  RSA751521  Cuscuta subinclusa A. C. Sanders, Fred M. Roberts 2008-8-7 35992 Orange lower Weir Canyon, at narrow gorge c. 0.6 mi. above mouth of cyn at Irvine Ranch gate. 185 Comment
  UCD54451  Cuscuta subinclusa R. Keith Glenn 1973-8-27 s.n. Orange 1 mile north of Barranca Rd. off Sand Canyon Rd. Comment
  JEPS59787  Cycloloma atriplicifolium Frank W. Peirson 1924-8-29 5061 Orange at bridge near Santa Ana; Santa Ana River Comment
  JEPS66891  Cylindropuntia prolifera L. M. Booth 1933-10-24 Orange Newport Comment
  UCR109772  Cynara cardunculus R. D. Goeden, Don W. Ricker 1965-6-15 s.n. Orange Canada de Los Alisos, El Toro 122 Comment
  RSA17587  Cynara cardunculus subsp. flavescens C. B. Wolf 1936-7-8 8100 Orange Coast Hwy, Western end of Newport Bay. 9 Comment
  UCR246515  Cynodon dactylon Fred M. Roberts 2013-5-30 7778 Orange Lomas de Santiago, Santiago Creek Wash, at Santiago Canyon Road bridge, south side, 0.3 km west of the junction of Silverado and Santiago Canyon Roads 299 Comment
  UCD60023  Cynodon dactylon Collector Unknown 1924-6-1 s.n. Orange De Tarr. Comment
  RSA542339  Cyperus difformis J. West 1990-9-4 s.n. Orange Irvine: University of California campus. 16 Comment
  RSA798098  Cyperus eragrostis Robert F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49572 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74) Comment
  CHSC116492  Cyperus eragrostis R. F. Thorne; E. W. Lathrop, W. Wisura 1977-7-8 49572 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74). Comment
  POM1353  Cyperus erythrorhizos D. L. Crawford 1916-7-26 s.n. Orange Laguna Canyon. Comment
  RSA161258  Cyperus erythrorhizos Peter H. Raven 1961-10-15 16852 Orange Santa Ana River at Anaheim Street Crossing 61 Comment
  POM50486  Cyperus esculentus Helen D. Geis 561 Orange Santa Ana. Comment
  RSA92102  Cyperus esculentus F. W. Peirson 1923-9-6 4032 Orange Along canal east of Olive. Comment
  POM187598  Cyperus laevigatus Joseph A. Ewan 1931-10-3 5197 Orange Below La Vida Soda Springs [now La Vida Mineral Springs], Carbon Canyon. Comment
  SD227676  Cyperus niger ScottD. White, Brian Leatherman 1997-6-12 5320 Orange East of San Juan Capistrano: San Juan Creek between Hwy 74 bridge and Mission Vieja site. i.e., ca. 2 to 4 mi E of I-15/ Hwy 74 jtn. 46 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
  RSA450865  Cyperus odoratus Gordon Marsh, Karlin G. Marsh 1977-11-21 s.n. Orange Santa Ana Mountains: San Juan Hot Springs. 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
  CAS-BOT-BC114047  Cyperus squarrosus LeRoy Abrams 1901-6-1 1771 Orange Laguna, San Juan Hills Comment
  RSA785389  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 Ave. 2 Comment
  SEINET3870581  Cyrtomium falcatum R. E. Riefner Jr. 2006-9-5 06 -417 Orange Southern Coast: Corona del Mar, Ocean Blvd. near Iris Ave. (Laguna Beach 7.5'Q).; 0 11 Comment
  UCD170386  Cyrtomium falcatum R. E. Riefner Jr. 2012-1-16 12- 5 Orange City of Newport Beach, Corona Del Mar, beach area west of Morning Canyon Road. 1 Comment
  UCR182824  Cyrtomium falcatum R. E. Riefner Jr. 2006-9-5 06- 417 Orange Southern Coast, Corona del Mar, Ocean Blvd. near Iris Ave. 11 Comment
  UCR240193  Cyrtomium falcatum R. E. Riefner Jr. 2012-1-26 12- 11 Orange South Coast, city of Laguna Beach, Aliso Creek Beach 2 Comment
  UCR240195  Cyrtomium falcatum R. E. Riefner Jr. 2012-1-16 12- 5 Orange South Coast, city of Newport Beach, Corona Del Mar, beach area west of Morning Canyon Road 1 Comment
  SD28072  Dactylis glomerata Carl B. Wolf 1932-6-13 3715 Orange Fullerton, Rose Drive 53 Comment
  UCR208856  Dactylis glomerata C. B. Wolf 1932-6-13 3715 Orange Fullerton, Rose Drive 53 Comment
  RSA734877  Datisca glomerata Keith E. Hoffmaster 1934-5-13 172 Orange Santa Ana Mountains Comment
  SEINET8724906 Image available Datisca glomerata F. R. Fosberg 1931-1 S 5151 Orange Silverado Can. , Santa Ana Mts, Orange Co. Comment
  JEPS12293  Datura wrightii Lawrence M. Booth 1932-7-30 1337 Orange near Newport Beach (Santa Ana River Channel, near coast); Santa Ana River Channel, near Newport Beach Comment
  RSA17044  Datura wrightii Carl B. Wolf 1936-1-13 7694 Orange Santa Ana Canyon, Rancho Santa Ana, along R. R. right of way east of Ranch Houses. 137 Comment
  RSA33529  Datura wrightii N. C. Cooper 1942-11-9 886 Orange Balboa. Comment
  RSA695  Datura wrightii J. T. Howell 1927-7-5 264 Orange Near ranch Lowers, Rancho Santa Ana. Comment
  UCR193028  Datura wrightii A. C. Sanders, Fred M. Roberts 2008-6-17 35520 Orange Peninsular Range; Santa Ana Mtns., middle section of Weir Canyon, SSE of Walnut Canyon Reservoir 225 Comment
  UCR224158  Datura wrightii Fred M. Roberts 2008-7-10 7075 Orange South Coast, Dana Point Headlands, CNLM Preserve, near Outlook 2, 0.7 km west of Marine Institute, Dana Point Harbor 52 Comment
  RSA648189  Daucus pusillus Karl Price 1988-5-21 51 Orange An unnamed side canyon within Hot Springs Canyon. It is on Hot Springs Canyon Rd., 0.75 mi. North of Ortega Hwy. (74), 12.6 mi. East of San Juan Capistrano. 304 Comment
  CAS-BOT-BC414245  Deinandra fasciculata R. E. Riefner, Jr. 2014-7-5 14 -216 Orange City of San Clemente, San Clemente State Beach, SSW ca. 100 m from the intersection of Ave. Calafia and South Ola Vista Rd. 40 Comment
  CHSC26109  Deinandra fasciculata Roger Shelby 1970-8-22 Orange Ca. 4 mi. N. of Huntington Beach, 1 1/2 mi. So. of Warner Ave. off Pacific Coast Hwy. in Bolsa Bay area. 0 Comment
  UC303962  Deinandra fasciculata D. L. Crawford 1915-9-1 504 Orange Huntington Beach Comment
  UC75961  Deinandra fasciculata E. A. Zumbro 1902-1-1 388 Orange Comment
  SEINET6048996  Deinandra kelloggii Robert Allen, Allen, Linnel 2008-7-27 Orange Peninsular Ranges. Santa Ana Mountains. Long Canyon Watershed. Along Canyon Road, 128 m SE of jct. with spur to Mystic Oaks (McConville Camp), 0.48 air miles upslope from jct. with Ortega Hwy (SR74). Comment
  CAS-BOT-BC383062  Deinandra paniculata R. E. Riefner, Jr. 2008-5-19 08 -101 Orange Ladera Ranch, Cecil Pasture at Jerome Rd. 157 Comment
  UCR254221  Deinandra paniculata R. E. Riefner Jr. 2008-5-19 08- 100 Orange Ladera Ranch, Cecil Pasture at Jerome Road 157 Comment
  UCR267217  Deinandra paniculata Fred M. Roberts 2014-7-25 7882 Orange South Coastal Plain, SAN JOAQUIN HILLS: Laguna Canyon, Nix Nature Center, Laguna Coast Wilderness Park, about 4.4 km E Signal Peak 126 Comment
  UCR267218  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
  UCR274558  Deinandra paniculata R. E. Riefner Jr. 2014-6-3 14- 144 Orange City of Laguna Beach, Moulton Meadows, NE 0.1 mi. from Del Mar Ave. and Balboa Ave. along Mentally Sensitive Trail 266 Comment
  RSA724055  Deinandra paniculata R. E. Riefner 1994-9-6 94 -552 Orange City of Dana Point, Dana Hills, vicinity of Dana Hills High School. 27 Comment
  RSA649081  Delphinium Karl Price 1988-5-7 35 Orange An unnamed side canyon within Hot Springs Canyon. It is on Hot Springs Canyon Rd., 0.75 mi. North of Ortega Hwy. (74), 12.6 mi. East of San Juan Capistrano. 305 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
  UC527601  Delphinium cardinale B. D. Stark 1931-6-6 2231 Orange Rancho Santa Ana 137 Comment
  RSA787104  Delphinium parryi Keith E. Hoffmaster 1928-5-29 497 Orange San Onofre. CP5. Comment
Read comments 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
  UCR192230  Delphinium parryi A. C. Sanders, Fred M. Roberts 2008-5-6 35262 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
  RSA0028963  Delphinium parryi subsp. parryi Thelma Shipe 1932-5-26 s.n. Orange Laguna Hills. PR8. Comment
  RSA652150  Dendromecon rigida J. Bruce Smiley 1940-4-28 s.n. Orange Santa Ana Canyon (mouth). 701 Comment
Read comments Nov 6 2013
  RSA662563  Dendromecon rigida P. Shirokawa 1998-5-7 21 Orange Cleveland National Forest- Trabuco Ranger District, 3.2 miles from Ortega Highway (State Highway 74) on North Main Divide Road 991 Comment
  RSA790667  Dendromecon rigida subsp. rigida Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49702 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  SD247680  Dendromecon rigida subsp. rigida R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49702 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  RSA697422  Dentaria integrifolia R. H. McArthur 1934-3-3 62 Orange Forks of Laguna Canyon. Comment
  RSA627745  Descurainia pinnata Scott D. White 1998-1-26 6068 Orange Irvine, Univ. of Calif. Irvine Campus: Site of proposed Research Park. SW of main campus circle, ca. halfway between Berkeley Av. and new freeway (Bonita Cyn.) 37 Comment
  CAS-BOT-BC43188  Descurainia pinnata subsp. brachycarpa Helen D. Geis 1902-1-1 530 Orange Santiago Creek. Comment
  UCR267190  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. 150 meters SE Interpretive Center 50 Comment
  UCR140805  Dichelostemma capitatum Robin G. Marushia 2004-4-16 004 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
  UCR190992  Dichelostemma capitatum A. C. Sanders, Fred M. Roberts 2008-4-22 35008 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
  RSA367482  Dichelostemma capitatum subsp. capitatum E. A. McGregor 1964-3-27 s.n. Orange San Clemente [Island or City?] 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
  RSA0012746  Dichondra occidentalis Fred M. Roberts 2012-5-10 7571 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
  RSA184114  Dichondra repens I. L. Wiggins 1965-7-11 20362 Orange Vacant lot between State College Blvd. and Troy High School campus, Fullerton. Comment
  SEINET10719725  Dicksonia David B. Dunn 1971-8-13 Dunn 18125 Orange Cultivated plants vicinity of Laguna Beach. Comment
  SD152749  Digitalis purpurea Steve Boyd, Tim 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 homestea. 351 Comment
  RSA683844  Digitaria sanguinalis Scott D. White, Matt Carlton 2003-11-20 9872 Orange Santa Ana Mountain foothills; San Juan Creek in San Juan Capistrano; (San Juan Capistrano). 37 Comment
  RSA788966  Digitaria sanguinalis R. F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49579 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74) Comment
  RSA0019266  Dimorphotheca ecklonis Fred M. Roberts 2008-10-9 7122 Orange Dana Point: Dana Point Headlands, CNLM Preserve, at base of cliff adjacent to Dana Strands Beach, 0.8km WNW Marine Institute (Dana Point Harbor). 3 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
  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
  CAS-BOT-BC152061  Diplacus puniceus P. A. Munz; R. D. Harwood 1920-4-24 3758 Orange Santa Ana Mts., Sierra Canyon 365 Comment
  SEINET13777977 Image available Diplacus puniceus J. McNeill 1969-1 3001 Orange San Juaquin Hills, Coyote Canyon 200 Comment
  CAS-BOT-BC43548  Diplotaxis muralis Ira L. Wiggins 1965-10-25 20302 Orange Along curb way on Dorothy Lane near corner of Lincoln Avenue, Fullerton. Comment
  UC1215212  Diplotaxis muralis Peter H. Raven 1962-3-27 16992 Orange near Anaheim (Rancho Santa Ana); Rancho Santa Ana 182 Comment
Read comments Mar 18 2011
  CDA3684  Diplotaxis muralis Margaret Bellue, E. L. Paddock, Andreas 1943-8-3 Orange Santa Ana Botanical Garden, Fullerton. 0 Comment
  POM123  Diplotaxis tenuifolia I. M. Johnston 1918-5-4 1927 Orange Santa Ana, at roadside. Comment
  RSA0120555  Distichlis littoralis Elisabeth Norland 1929-3-16 s.n. Orange Huntington Beach. Comment
  HSC9634  Distichlis spicata J. W. Johnson 1961-2-19 Orange Newport Beach, marine terrace above upper Newport Bay. Comment
  POM1195  Distichlis spicata D. L. Crawford 1916-7-26 s.n. Orange Aliso Canyon Comment
  RSA708818  Distichlis spicata Fred M. Roberts, Robert L. Allen, Chris Barnhill 2004-8-21 6113 Orange Caspers Wilderness Park, San Juan Cyn., Old San Juan Hot Springs, c.a. 0.4km SW San Juan Ranger Station, north of SR 74. 214 Comment
  RSA627743  Dodecatheon clevelandii Scott D. White, Brian Leatherman 1998-1-26 6063 Orange Irvine, Univ. of Calif. Irvine Campus: Site of proposed Research Park. SW of main campus circle, ca. halfway between Berkeley Av. and new freeway (Bonita Cyn.) 12 Comment
  POM366539  Drymocallis glandulosa var. wrangelliana Christopher Davidson 1977-5-18 5633 Orange Santa Ana Mts. Cleveland National Forest, Falcon campground 1006 Comment
  RSA301978  Dryopteris arguta J. R. Shevock 1970-12-20 570 Orange Silverado Canyon 579 Comment
  RSA311324  Dryopteris arguta R. F. Thorne 1963-7-26 32847 Orange Near Beek's Spring; Tin Mine Canyon; Trabuco District, Santa Ana Mountains, Cleveland National Forest. 716 Comment
Read comments Apr 25 2011
  RSA698474  Dryopteris arguta R. H. McArthur 1934-4-14 s.n. Orange Laguna Canyon. Hillside. Comment
  RSA749640  Dryopteris arguta D. E. Bramlet 2008-4-1 4138 Orange Upper Hicks Canyon, 24m S of the Haul Road 302 Comment
  UCR138439  Dryopteris arguta R. E. Riefner Jr. 2000-3-26 20 149 Orange Peninsular Range, Santa Ana Mountains: North Ranch Policy Plan Area, Fremont Canyon, north of major stream fork along west channel drainage 335 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
  RSA759111  Dryopteris arguta Robert Allen, Reginald Durant 2008-9-28 s.n. Orange Laurel Spring, just below Harding Truck Trail., Survey Waypoint #85. Comment
  LA204784  Dudleya blochmaniae subsp. blochmaniae Joan Malloy; 1952-5-18 sn Orange Salt Creek Beach, Laguna Comment
  SD207012  Dudleya edulis Reid Moran 1948-6-23 3096 Orange Aliso Canyon; Laguna Beach. Comment
  UC933265  Dudleya edulis Reid Moran 1949-5-28 3258 Orange Aliso Canyon Laguna Beach Comment
  RSA0002519  Dudleya edulis Reid V. Moran 1948-6-23 3097 Orange North-facing cliff near mouth of Aliso Canyn, south of Laguna Beach 8 Comment
  UC2059992  Dudleya edulis K. Nakai 1978-4-19 360 Orange Aliso Canyon, ca 200 yards from Highway 1. Comment
  POM219195  Dudleya lanceolata L. C. Wheeler 1932-6-25 862 Orange Newport Bay. 6 Comment
  RSA170990  Dudleya lanceolata R. F. Thorne 1963-7-26 s.n. Orange Near Beek's Spring; Tin Mine Canyon; Trabuco District, Santa Ana Mountains, Cleveland National Forest. 716 Comment
Read comments Apr 25 2011
  RSA598971  Dudleya lanceolata Scott D. White 1997-3-28 4842 Orange Above Modjeska Canyon, proposed water tank site. 425 Comment
  UC1015136  Dudleya lanceolata Reid Moran 1951-6-22 3495 Orange Aliso Canyon Laguna Beach Comment
  UC1090403  Dudleya lanceolata Milo S. Baker 1958-5-20 13302 Orange Newport Bay 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
  RSA397818  Dudleya multicaulis F. W. Peirson 1922-5-18 3071 Orange Santa Ana River. 122 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
  RSA594810  Dudleya multicaulis Fred M. Roberts, Edna Rey, Kay Stockwell 1993-5-6 4879 Orange Orange Park Acres, Glen Albyn Lane, ca. 0.7 km by road E Santiago Blvd. 0.3 km NW Bauer Survey Marker. 168 Comment
  RSA732271  Dudleya multicaulis A. C. Sanders 2008-4-29 35129 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
  RSA84220  Dudleya multicaulis F. W. Peirson 1922-5-18 3071 Orange Santa Ana River Canyon 152 Comment
Read comments Apr 1 2009
  UCR52607  Dudleya multicaulis Jeri Hirshberg 1988-6-7 s.n. Orange Santa Ana Canyon, head of Gypsum Canyon, along roadbanks 412 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
  RSA757122  Dudleya pulverulenta A. C. Sanders, Fred M. Roberts, Jutta Burger 2009-10-21 37192 Orange Lomas de Santiago, lower Hangmans Tree Canyon. 379 Comment
  IRVC25030  Dudleya stolonifera Fred M. Roberts 1984-4-29 1360 Orange Temple Hill above Laguna Canyon, 6.5km SE Signal Peak; 0.6km E Bench Mark 104, Laguna Beach 195 Comment
  RSA423513  Dudleya stolonifera Albert J. Perkins 1912-8-22 s.n. Orange 3 miles SW of Laguna Beach. Aliso canyon. Comment
  UC905134  Dudleya stolonifera R. V. Moran 1949-7-2 3286 Orange 1.5 mi above canyon mouth (1.7 mi below Toro Rd junction); Laguna Canyon Comment
  CAS-BOT-BC109743  Dudleya stolonifera R. V. Moran 1949-7-2 3286 Orange 1.7 mile below Toro Road Junction, -1.5 mile above canyon mouth. Laguna Canyon. 243 Comment
  RSA0045610  Echidiocarya californica Keith E. Hoffmaster 1935-2-9 841 Orange Santa Ana Mts., near El Toro. Comment
  RSA696595  Echinochloa crus-galli R. H. McArthur 1934-5-10 s.n. Orange E. of Fairview roadside. Comment
  UC537284  Echinochloa crus-galli Lawrence M. Booth 1932-7-18 1263 Orange Newport Bay Costa Mesa; , Costa Mesa Comment
  RSA703124  Echinochloa crus-galli R. E. Riefner Jr. 2004-8-8 4 -371 Orange City of Anaheim, Santa Ana River bottom, E of 57 Freeway between Orangewood Street and Chapman Avenue. 41 Comment
  POM202732  Echinochloa muricata var. microstachya L. M. Booth 1932-7-25 1314 Orange Santa Ana River 2 miles from ocean. Comment
  POM1011  Echinodorus berteroi I. M. Johnston 1918-9-3 2151 Orange Laguna Canyon (at the lakes) 107 Comment
  RSA443824  Echinodorus berteroi 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
  RSA654972  Echinodorus berteroi R. E. Riefner 2000-8-21 20 -728 Orange Irvine Lake [Santiago Reservoir], first cove east of the dam 238 Comment
  UC213654  Echinodorus berteroi D. L. Crawford 1916-7-26 Orange Laguna Canyon Laguna Beach Region, Laguna Canyon Comment
  UC814517  Echinodorus berteroi I. M. Johnston 1918-9-3 2151 Orange Laguna Canyon San Joaquin Hills, Laguna Canyon 106 Comment
  POM1010  Echinodorus cordifolius D. L. Crawford 1916-7-27 s.n. Orange Laguna canyon Comment
  SEINET10456473  Echium Chester T. Dziekanowski, David B. Dunn; Charlene A. Bennett 1976-7-21 Dziekanowski 2416 Orange Collected around the condominium-Pacific Island Estates in Laguna Niguel. Comment
  IRVC24281  Eclipta prostrata Fred M. Roberts, G. A. Marsh 1985-10-26 2518 Orange Santa Ana River: adjacent to Huntington Beach; 0.7km SSW Adams Street bridge. southern coastal 4 Comment
  RSA731651  Ehrharta erecta Fred M. Roberts 2007-10-29 6628 Orange Laguna Beach: Temple Hill, Nyes Place, c.a. 0.2 km S Moulton Meadows Park. 232 Comment
  UCR266405  Ehrharta erecta D. E. Bramlet 2010-3-3 s.n. Orange 1691 Mesa Dr., Newport Beach 16 Comment
  RSA724074  Ehrharta erecta R. E. Riefner 1999-8-21 99 -362 Orange Laguna Beach, west of Pacific Coast Hwy., vicinity of Aliso Creek Park and south to West Drive. 0 Comment
  UC1543115  Elatine brachysperma Donald G. Nelson 1935-4-15 302 Orange on road from Garden Grove to Costa Mesa converging near Costa Mesa (toward main highway from Santa Ana) Comment
  UC306105  Eleocharis macrostachya D. L. Crawford 1916-3-10 727 Orange Santa Ana River Comment
  UCSB57546  Eleocharis montevidensis Roberts, Fred 1984-4-14 Orange Santa Ana Mtns.; Chiquito Basin, San Juan Trail, 1.9 km. SW Blue Jay Campground; 2.8 km. S Los Pinos Peak 840 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
  POM12446  Eleocharis palustris Phillip A. Munz 1922-9-2 6354 Orange Ponds in Laguna Canyon 46 Comment
  RSA735160  Eleocharis palustris A. C. Sanders, Fred M. Roberts 2008-5-6 35240 Orange Lomas de Santiago, Loma Ridge, head of Hicks Canyon, south of Santiago Reservoir 351 Comment
  UCR247917  Eleocharis palustris Fred M. Roberts 2012-7-18 7674 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
  RSA84  Eleocharis radicans J. T. Howell 1927-7-6 276 Orange Santa Ana River bottom, Rancho Santa Ana 152 Comment
  JEPS48807  Eleocharis rostellata Lawrence M. Booth 1932-6-4 1151 Orange Newport Bay Comment
  RSA697745  Ellisia chrysanthemifolia Minor Warne 1934-03 s.n. Orange Laguna Canyon Comment
  SEINET10561498  Elymus X hansenii Alvares ALVARES 1814 Orange Santrago P.K. Trail. Comment
  CAS-BOT-BC206790  Elymus glaucus subsp. glaucus Le Roy Abrams 1901-6-1 1831 Orange Mt. Santiago Trail 914 Comment
  JEPS71193  Elymus glaucus subsp. glaucus L. M. Booth 1932-6-7 1154 Orange Newport Bay Comment
  POM50709  Elymus glaucus subsp. glaucus Le Roy Abrams 1901-06 1822 Orange Santiago Peak Trail 915 Comment
  RSA539359  Elymus glaucus subsp. glaucus Fred M. Roberts 1988-6-9 4069 Orange Santa Ana Mountains: Main Divide Truck Trail, Upper Silverado Canyon, 1.9 kilometer N Modjeska Peak., UTM 3733000mN, 449500mE 1128 Comment
  UCR150908  Elymus glaucus subsp. glaucus Valerie 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 1555 Comment
  RSA539340  Elymus multisetus Fred M. Roberts, Carol A. Roberts 1988-6-9 4078 Orange Santa Ana Mountains: Modjeska Peak, 0.9km SW summit., 3730500mN, 449000mE 1542 Comment
  RSA548877  Elymus multisetus Fred M. Roberts, K. Keane 1988-5-25 4583 Orange Rancho Mission Veijo: Lower Canada Chiquita, 2.0 kilometers SSE Medium Rancho Survey Marker., UTM 3710600m N, 443550m E. 91 Comment
  UCR193379  Elymus triticoides A. C. Sanders, Mitch Provance 2008-5-20 35396 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
  UCR2375  Elymus triticoides F. M. Reed 1932-5-24 7234 Orange South Coast, San Juan Capistrano, behind beach dune Comment
  CAS-BOT-BC131227  Encelia californica H. F. Copeland 1938-6-28 s.n. Orange Hills back of Laguna Beach Comment
  POM122763  Encelia californica Marcus E. Jones 1924-8-26 s.n. Orange Newport. Comment
  POM183951  Encelia californica P. A. Munz 1932-3-29 12185 Orange Costa Mesa. Comment
  RSA647887  Encelia californica Mark Breidenbaugh, Caralisa Breidenbaugh 1992-5-25 61 Orange 1/2 mile south of Chino Hills State Park Boundary. 228 Comment
  RSA696885  Encelia californica Kenneth Beard 1934-03 s.n. Orange Waste land along road near Placentia. Comment
  RSA746042  Encelia californica Archie F. Iskaq 2006-2-4 1 Orange Southern Coastal: San Joaquin Marsh; NW edge of marsh. Comment
  UCR192986  Encelia farinosa A. C. Sanders, Fred M. Roberts 2008-5-6 35215 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hicks Canyon near Irvine Ranch gate and road junction to cement plant 180 Comment
  UCR223422  Encelia farinosa Dick Newell, Don Millar 2011-3-1 068 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Hicks Canyon Haul Road, above Jeffrey Rd. and below Hwy 241 crossing 175 Comment
  POM146315  Epilobium canum subsp. canum Chas H. Quibell 1927-07 s.n. Orange Laguna Beach. Comment
  POM202568  Epilobium canum subsp. canum Marcus E. Jones 1934-1-2 s.n. Orange Newport Beach. Comment
  RSA162770  Epilobium canum subsp. canum J. D. Olmsted 1959-8-26 830 Orange 100 yards northeast of center of Hidden Ranch by pump along Black Star Canyon Road. N end of Santa Ana Mountains 671 Comment
  UCR247893  Epilobium canum subsp. canum Fred M. Roberts 2012-7-18 7660 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
  UCR237923  Epilobium ciliatum Dick Newell, Judy Booth 2012-6-24 276 A Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, on Maple Springs Road 1.9 mi. NE of Maple Springs gate 817 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
  RSA0031655  Equisetum funstonii Keith E. Hoffmaster 1937-4-11 749 Orange Black Star Can., Santa Ana Mts. Comment
  IRVC1250  Equisetum hyemale subsp. affine L. Burns 1965-4-21 Orange Balboa Peninsula. Newport Beach Comment
  RSA699856  Equisetum hyemale var. affine Minor Warne 1934-3-1 s.n. Orange Santa Ana River Banks Comment
  POM17838  Equisetum telmateia var. braunii Philip A. Munz 1923-9-7 7731 Orange Holy Jim Canyon, Santa Ana Mountains 609 Comment
  UCD62942  Eragrostis cilianensis Beecher Crampton 1971-6-9 8723 Orange UC South Coast Field Station, east of Irvine. Comment
  POM298879  Eragrostis mexicana subsp. virescens Frank W. Gould 1944-6-25 2362 Orange Tournat Ranch, Garden Grove. Comment
  RSA226743  Eragrostis mexicana subsp. virescens I. L. Wiggins 1965-11-7 20358 Orange Vacant lot between State College Blvd. and Troy High School Campus, Fullerton. Comment
  RSA554213  Eragrostis pectinacea Tim Hartz 1990-11-19 s.n. Orange Irvine, U. C. South Coast Field Station, near the U. C. Irvine Campus. Comment
  JEPS52502  Eremocarpus setiger John Thomas Howell 1927-9-24 3108 Orange Rancho Santa Ana Santa Ana Canyon 152 Comment
  POM201866  Eremocarpus setiger L. M. Booth 1932-5-12 1021 Orange Newport Bay. Comment
  UCR241914  Eriastrum sapphirinum Fred M. Roberts 2012-5-10 7564 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
  CAS-BOT-BC514997  Eriastrum sapphirinum subsp. dasyanthum L. R. Abrams 1901-6-1 1791 Orange Trabuco Canyon Comment
  CAS-BOT-BC514998  Eriastrum sapphirinum subsp. dasyanthum John Thomas Howell 1927-6-1 2408 Orange Southern Puente Hills in the Santa Ana Canyon 152 Comment
  JEPS30707  Ericameria palmeri var. pachylepis Peter H. Raven 1961-10-15 16854 Orange just w of State Highway 55 (Santa Ana Canyon Road); Peralta Hills 137 Comment
  CAS-BOT-BC294347  Ericameria palmeri var. palmeri Scott White 1992-10-1 950 Orange Vicinity of city of Brea, immediately N of Carbon Canyon Road & E of Placentia Avenue. +-1 mi. (airline) S/SE of Tonner Canyon 182 Comment
  RSA38491  Ericameria parishii Percy C. Everett 1945-11-13 11512 Orange Indian Canyon Truck Trail, Indian Canyon, Santa Ana Mts. 960 Comment
  CAS-BOT-BC293092  Ericameria pinifolia John Thomas Howell 1927-10-22 3158 Orange On n. side of Santa Ana Canon [Canyon] 213 Comment
  HSC25252  Ericameria pinifolia Richard Spjut 1972-2-21 2213 Orange Along Hwy. 74 in the Cleveland National Forest, Santa Ana Mtns. 610 Comment
  UCR195001  Erigeron canadensis A. C. Sanders, Fred M. Roberts 2008-8-7 36008 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon at powerline crossing, 1.0 mi. (air) SSE of Walnut Canyon Reservoir 226 Comment
  SD98909  Erigeron foliosus Darley Howe 1976-6-4 4905 Orange Trubuco Canyon, Santa Ana Mountains. Comment
  RSA0013964  Erigeron foliosus var. foliosus Fred M. Roberts, David E. Bramlet 2008-5-13 6956 Orange Upper Weir Cyn., central fork, 3.5 km NE Roberst Peak 369 Comment
  UCR215289  Erigeron foliosus var. foliosus Fred M. Roberts, D. E. Bramlet 2008-5-13 6956 Orange Santa Ana Mountains, upper Weir Canyon, central fork, 3.5 km NE of Robbers Peak 369 Comment
  RSA0025300  Erigeron karvinskianus R. E. Riefner Jr. 2013-1-16 13 -15 Orange City of Newport Beach, vicinity of Poppy Ave. and Ocean Blvd., coastal bluff at Little Corona Beach. 7 Comment
  RSA0054860  Erigeron linifolius Keith E. Hoffmaster 1927-5-11 285 Orange Santa Ana. Comment
  RSA455040  Eriodictyon crassifolium Theodore Payne 1909-01 2338 Orange Santa Ana Mt. Comment
  RSA763546  Eriodictyon crassifolium Doris Bowers 1971-4-19 1694 Orange Black Star Canyon Indian Site 762 Comment
  UCD119238  Eriodictyon crassifolium K. M. Meyer; A. Townesmith and T. Scott 2007-3-10 1 Orange Cleveland National Forest, 0.5 mi. N. Main Divide Rd./NF3S04, off Hwy. 74. Elsinore Mountains, ridge top. 917 Comment
  SEINET10697903  Eriodictyon crassifolium var. crassifolium Karen M. Meyer, Andrew Townesmith; Tracy Scott 2007-3-10 Meyer 1 Orange Cleveland National Forest, 0.5 mi. N. Main Divide Rd./NF3S04, off Hwy. 74. Elsinore Mountains, ridge top. 917 Comment
  SEINET6336298  Eriogonum crocatum Czarnecki 1966-4-13 67 Orange Old botanical gardens on Rancho Santa Ana. Comment
Read comments Nov 3 2015
  RSA211  Eriogonum elongatum J. T. Howell 1927-9-24 741 Orange Santa Ana Botany Garden 152 Comment
  RSA7477  Eriogonum elongatum Carl B. Wolf 1933-8-24 5401 Orange Summit of Santiago Peak, Santa Ana Mountains. 1732 Comment
  UCR192100  Eriogonum fasciculatum subsp. foliolosum A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35286 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir 300 Comment
  RSA748169  Eriogonum fasciculatum var. fasciculatum K. M. Meyer, A. Townesmith, T. Scott 2007-3-10 4 Orange Cleveland National Forest, 0.5 mi. N Main Divide Rd./NF3S04, off Hwy. 74. Elsinore Mtns., ridge top. 917 Comment
  SEINET253237  Eriogonum fasciculatum var. fasciculatum Lawrence M. Booth 1932-7-27 1326 Orange Corona del Mar, Newport Beach, Ocean Bluff. Comment
  UC527456  Eriogonum fasciculatum var. fasciculatum C. B. Wolf 1931-8-9 2300 Orange 1/2 mi s (1st small can.) Corona Del Mar beach (bottom of ravine near ocean) 7 Comment
  CAS-BOT-BC249944  Eriogonum fasciculatum var. foliolosum John Thomas Howell 1927-7-24 2835 Orange Santa Ana Canyon 152 Comment
  RSA542470  Eriogonum fasciculatum var. polifolium Karlin G. Marsh 1989-6-23 s.n. Orange Laurel Springs, Harding Truck Trail. 316 Comment
  CLARK-A1528-3648  Eriogonum giganteum John C. Roos, Lucille Roos 1950-9-25 4992 Orange Santa Ana Canyon Comment
  RSA424463  Eriogonum parvifolium var. parvifolium E. S. Spalding 1923-12-1 s.n. Orange Opposite San Juan Capistrano Comment
  CAS-BOT-BC263019  Eriogonum thurberi John Thomas Howell 1927-7-24 2820 Orange Santa Ana River bottom, Santa Ana Canon [Canyon] 152 Comment
  CAS-BOT-BC263020  Eriogonum thurberi John Thomas Howell 1927-6-6 2452 Orange Santa Ana River bottom, Santa Ana Canon [Canyon] 152 Comment
  RSA783663  Eriogonum virgatum J. D. Olmsted 1959-8-26 832 Orange Black Star Creek: Near Hidden Ranch along Black Star Canyon Road in Black Star Canyon in roadside cliffs. 671 Comment
  RSA539417  Eriophyllum confertiflorum Fred M. Roberts 1988-6-10 4099 Orange Modejeska Peak, 0.8 km SW summit along crest. 1548 Comment
  UCR241905  Eriophyllum confertiflorum Fred M. Roberts 2012-4-24 7523 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
  RSA786241  Erodium botrys Doris Bowers 1971-4-19 1679 Orange Black Star Canyon Indian Site 762 Comment
  RSA697670  Erodium botrys Olive Bernice Spears 1932-3-29 s.n. Orange 1/2 mi. W. of Atwood. Comment
  UCSB48064  Erodium cicutarium Fritzke, S.; Roberts, Fred 1982-4-2 Orange Laguna Niguel: hills; 3.5km ESE Aliso Peak; 3.2km ESE Alicia Fire Station; N of Del Avion 100 Comment
  RSA684304  Erodium moschatum Fred M. Roberts, David E. Bramlet 2003-3-13 5602 Orange Donna O Neill Land Conservancy: Flagpole Meadow, upper Shady Cyn. W of Cristianitos Canyon, 1,500m NW Sycamore Gate and 1,220m W Cristianitos Rd. 173 Comment
  RSA734609  Erodium moschatum Keith E. Hoffmaster 1927-2-19 413 Orange Santa Ana. Comment
  RSA697438  Erysimum capitatum R. H. McArthur 1934-3-25 s.n. Orange Above forks of Black Starr & Santiago Creek bottom Comment
  IRVC22653  Erysimum capitatum L. Orsak 1973-5-10 Orange Upper Santiago Canyon, top of Joplin Trail, Santa Ana Mountains 1483 Comment
  SD235040  Erythranthe floribunda A. C. Sanders, T. B. Salvato 2008-5-13 35335 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
  CHSC1770  Erythranthe guttata S. Westerberg 1938-4-1 Orange San Juan canyon. Comment
  RSA16485  Eschscholzia californica var. peninsularis Percy C. Everett 1935-6-19 7222 Orange Santa Ana Mts, Main Divide Motorway. Comment
  IRVC27878  Eucalyptus citriodora A. C. Sanders, Mark A. Elvin 2003-10-12 27312 Orange Irvine; UCI Arboretum, UCI campus near intersection of Jamboree Blvd and Campus Dr. Southern Coastal 15 Comment
  RSA0012603  Eucalyptus globulus D. B. Boatman 1969-3-16 6903161 Orange 1/2 mile E crossroads Newport Blvd. and Skyline Dr. Tustin. 91 Comment
  UCR241043  Eucalyptus polyanthemos Robert DeRuff 2010-1 288 Orange South Coast, Upper Newport Bay, above Back Bay Dr. at Eastbluff North 17 Comment
  RSA749485  Eucrypta chrysanthemifolia Fred M. Roberts 2008-3-25 6793 Orange Loma Ridge: Upper Hicks Cyn. near Haul Road, c.a. 4.4 km by road from Portola Pkwy. and 3.2 km ENE Rattlesnake Cyn. Reservoir. 269 Comment
  UCSB48082  Eucrypta chrysanthemifolia Roberts, Jr., Fred 1981-4-12 Orange Santa Ana Mountains: San Juan Canyon, Hwy 74 2.0km by road SW of San Juan Guard Station; 2.7km SW Juan Rancho Survey Mark 210 Comment
  SEINET7073420  Eucrypta chrysanthemifolia var. chrysanthemifolia A. G. Vestal 1963-4-24 s.n. Orange La Paz Canyon, Rancho Mission Viejo. Coordinate datum: NAD27. Comment
  IRVC25150  Euphorbia albomarginata Fred M. Roberts 1986-9-3 3134 Orange adjacent to Anaheim, between Yorba Linda Regional Park and Imperial Hwy, Santa Ana River 88 Comment
  POM8655  Euphorbia crenulata P. A. Munz 1920-4-23 3728 Orange Santa Ana Mountains, Silverado Canon. 549 Comment
  CLARK-A1528-2702  Euphorbia misera John C. Roos 1937-9-1 2548 Orange South Laguna Comment
  RSA0106893  Euphorbia misera R. E. Riefner Jr. 2012-12-5 12 -587 Orange City of Dana Point, Dana Point Harbor, Dana Harbor Drive, near Cove Road. 8 Comment
  UCR247411  Euphorbia nutans Roger E. Reinke 2013-11-3 s.n. Orange Santa Ana, 12782 Bubbling Well Rd. 41 Comment
  UCR103162  Euphorbia peplus Scott D. White 1997-3-28 4849 Orange Santa Ana Mountains, Above Modjeska Canyon, proposed water tank site. 488 Comment
  UCR103788  Euphorbia peplus Scott D. White 1997-2-19 4693 Orange Santa Ana Mtns, above Modjeska Canyon; proposed water tank site 488 Comment
  RSA697596  Euphorbia polycarpa Minor Warne 1934-5-19 s.n. Orange Trabuco. Comment
  RSA734349  Euphorbia polycarpa A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34642 Orange Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 396 Comment
  UCR191355  Euphorbia polycarpa A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34642 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
  UCR239630  Euphorbia polycarpa var. polycarpa Fred M. Roberts 2012-4-24 7514 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
  UCR239646  Euphorbia polycarpa var. polycarpa Fred M. Roberts 2012-5-9 7553 Orange Santa Ana Mountains, Lake Forest, near Serrano Creek utility road, 0.3 m south-southwest of intersection of Commercentre and Dimension Drives 206 Comment
  SD233799  Extriplex californica Hyrum B. Johnson 1973-10-27 Orange Pacific Coast: Bolsa Chica State Beach. 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
  RSA0015959  Festuca perennis Fred M. Roberts 2012-4-24 7534 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
  CAS-BOT-BC502071  Ficus microcarpa R. E. Riefner, Jr. 2013-7-11 13 -139 Orange City of Laguna Beach, Heisler Park, near Recreation Point, SW of Cliff Cr. and Myrtle St. 7 Comment
  CAS-BOT-BC502074  Ficus microcarpa R. E. Riefner, Jr. 2015-8-30 15 -376 Orange City of Anaheim, Pearson Park, near center of park, N of North Helena St. and West Cypress St 45 Comment
  RSA0088635  Ficus microcarpa R. E. Riefner Jr. 2014-6-21 14 -186 Orange City of Laguna Beach, N side of North Coast Highway near intersection with Cliff Dr. 10 Comment
  RSA0116293  Ficus microcarpa R. E. Riefner Jr. 2008-10-22 08 -312 Orange City of Laguna Beach, vicinity of West St and Pacific Coast Hwy. 8 Comment
  CAS-BOT-BC414247  Ficus rubiginosa R. E. Riefner, Jr. 2011-8-25 11 -119 Orange City of Laguna Beach, Aliso Creek Park, rocky and bluff between Aliso Beach Park and West St. 7 Comment
  UCR192091  Filago gallica A. C. Sanders, Fred M. Roberts 2008-5-6 35257 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
  RSA542431  Filago gallica Fred M. Roberts, Gordon Marsh, Karlin G. Marsh 1988-4-26 3938 Orange San Joaquin Hills: Pelican Hill, 0.5 kim SE Summit. 165 Comment
  OBI8010  Foeniculum vulgare Kurt R. Neisess 1975-12-21 Orange In the Fullerton Hills area Comment
  UCR186684  Foeniculum vulgare T. B. Salvato, Katie Kurtz, Mitch Provance 2006-10-15 1905 Orange South Coast, Irvine, San Diego Creek flood control channel, between Campus Drive and Michelson Drive 6 Comment
  RSA699264  Fragaria John Murphy 1938-6-6 s.n. Orange Birch Park Comment
  UCSB48032  Frangula californica subsp. californica Roberts, Fred 1980-7-7 Orange Santa Ana Mtns., San Juan Canyon, Hwy 74, 2.3km ENE San Juan Guard Station; 0.4km W Bench Mark 1100 315 Comment
  SD120876  Frangula californica subsp. cuspidata Reid Moran 1975-7-18 22596 Orange Bottom of Trabuco Canyon, Santa Ana Mountains 725 Comment
  RSA391401  Frankenia grandifolia Joseph A. Ewan 1932-7-28 7701 Orange Corona Del Mar Comment
  SEINET6671085 Image available Frankenia grandifolia Lawrence M. Booth collection date not given 1037 Orange Newport Bay Comment
  RSA201850  Frankenia grandifolia L. M. Booth 1932-5-12 1037 Orange Newport Bay. Comment
  JEPS30104  Frankenia salina L. M. Booth 1932-7-27 1324 Orange Comment
Read comments Nov 11 2011
  UC1494289  Frankenia salina Molly Whalen and Liz Evans 1978-6-2 511 Orange sw of bridge near U.S. Naval Weapons Station (along Pacific Coast Highway 1) Comment
  RSA1456  Fraxinus dipetala E. R. Johnson 1929-4-11 1257 Orange Sierra Peak Trail. Comment
  RSA69893  Fraxinus dipetala F. W. Peirson 1925-4-10 5743 Orange In Silverado Canyon. 610 Comment
  POM9233  Fraxinus dipetala P. A. Munz, R. D. Harwood 1920-4-25 3737 Orange Santa Ana Mountains, Silverado Canyon. 549 Comment
  CDA9402  Fraxinus uhdei D. G. Kelch 2006-12-9 6 .535 Orange Along Newport Back Bay Dr. in side canyon. Comment
  CAS-BOT-BC218564  Fraxinus velutina E. R. Johnson 1933-7-6 5170 Orange Santa Ana River, Santa Ana Canyon, Rancho Santa Ana 121 Comment
  RSA443842  Fraxinus velutina Gordon Marsh 1977-9-1 s.n. Orange Mission Viejo, Alicia Springs. Comment
  RSA304144  Fremontodendron californicum James R. Shevock 1970-3-25 67 Orange Cleveland Nat. Forest. 518 Comment
Read comments Oct 28 2014
  UCR261710  Fritillaria biflora Dick Newell, Don Millar, Catherine Lovella 2015-3-17 391 Orange Peninsular Range; Santa Ana Mtns. Foothills, Baker Canyon, 0.15 mi. SE of Baker Canyon Rd. and 0.15 mi. NNE of 'top of Baker 361 Comment
  CAS-BOT-BC422453  Fumaria officinalis Ira L. Wiggins 1965-12-5 20366 Orange 2 mi. E. of Atwood on N. side of Orangethorpe Avenue. Comment
  RSA696600  Fumaria officinalis Keith E. Hoffmaster 1933-3-15 410 Orange near Santa Ana. Comment
  UCR29049  Fumaria parviflora L. C. Erickson 1952-3-13 s.n. Orange Santa Ana Comment
  LA208397  Galium angustifolium Norman C. Cooper; 1944-6-4 Orange San Juan Canyon 304 Comment
  RSA609661  Galium angustifolium R. S. Woglum 1932-4-16 s.n. Orange Trabuco Canyon, Santa Ana Mountains, Cleveland National Forest Comment
  SEINET7067519  Galium angustifolium A. G. Vestal 1947-6-12 s.n. Orange Upper San Juan Canyon on Route 74 to Lake Elsinore in Cleveland National Forest. Coordinate datum: NAD27. UTM Zone 11, 452352mE, 3716538mN. 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
  LA208400  Galium angustifolium Carl B. Wolf; 1933-8-24 Orange Santa Ana Mountains, Santa Ana MTs. Summit of Santiago Peak 1731 Comment
  UCSB52456  Galium angustifolium Roberts, Fred 1983-3-10 Orange Dana Point Headlands; cliff above Dana Point Harbor, south of old Cove Rd; 0.8 km S Richard Henry Dana School 18 Comment
Read comments Oct 28 2018
  JEPS56094  Galium angustifolium subsp. angustifolium Lauramay T. Dempster and G. L. Stebbins 1967-3-21 4354 Orange along road from Pomono to Brea ca 1 mi sw Orange-San Bern. Co. line (s-facing hillside); Carbon Canyon Comment
  UC1143131  Galium angustifolium subsp. angustifolium A. Lewis May 1934 411 Orange Trabucco Canyon Cleveland National Forest, Elsinore Quadrangle 1219 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
  RSA700186  Galium aparine Minor Warne 1934-4-28 s.n. Orange Ladd Canyon-Santa Ana Mts. PR8. Comment
  VVC895  Galium aparine B. G. Pitzer 1997-3-25 3014 Orange San Joaquin Hills, Crystal Cove State Park, Pelican Point Area, grassland between Pacific Coast Hwy & the bike trail. 30 Comment
  RSA732225  Galium parisiense A. C. Sanders, Fred M. Roberts 2008-4-22 35027 Orange Santa Ana Mtns.: Lomas de Santiago, Limestone Canyon, c. 2 miles SW of Silverado. 1200 Comment
  UC1608263  Galium parisiense Steve Boyd and Tim Ross 1992-5-19 7428 Orange along Lucas Canyon Trail from access road to Rancho Carillo (7SO6) n to Aliso Canyon (w edge of wilderness); Southern Santa Ana Mountains, San Mateo Canyon Wilderness Ar 365 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
  UCR149873  Galium porrigens Scott D. White, Michael Honer 2004-5-17 10390 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
  UCSB45954  Gamochaeta pensylvanica Roos, John 1965-6-16 Orange Dana Point Comment
  RSA86777  Gastridium phleoides F. W. Peirson 1923-9-7 4033 Orange Holy Jim Trail to santiago Peak 1143 Comment
  UCR64601  Gaura parviflora var. lachnocarpa E. L. Paddock 1943-6-8 12730 Orange Whittier Road, one-fourth mi. west of Puente Street, Brea. Comment
  UC284868  Gayophytum diffusum subsp. parviflorum P. A. Munz 1923-9-7 7749 Orange Santiago Peak Santa Ana Mts. (near summit) 1645 Comment
  SEINET10728264  Gazania David B. Dunn 1971-8-13 Dunn 18119 Orange Cultivated plants vicinity of Laguna Beach. Comment
  SEINET10728265  Gazania David B. Dunn 1971-8-13 Dunn 18117 Orange Cultivated plants vicinity of Laguna Beach. Comment
  UCR217671  Gazania linearis Fred M. Roberts 2008-5-30 7014 Orange South Coast, Lomas de Santiago, Santiago Creek wash, 0.6 km south southeast of Silverado School, Irvine Ranch Conservancy 314 Comment
  RSA682592  Geranium carolinianum Scott D. White, Brian Leatherman 1997-5-6 5037 Orange Santa Ana Mts: Santiago Canyon area. Unnamed tributary to Santiago Ck. flowing from the SW, directly west of Pancho Cyn. Lomas de Santiago S 179. 366 Comment
  UCR192636  Geranium carolinianum A. C. Sanders, Fred M. Roberts 2008-4-8 34754 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. 457 Comment
  OBI82301  Geranium incanum var. multifidum Unknown 2012-6-16 12 -404 Orange City of Dana Point, Dana Point Harbor Drive at Island Way. 11 Comment
Read comments Apr 23 2020
  RSA0035858  Geranium incanum var. multifidum R. E. Riefner Jr. 2012-12-5 12 -588 Orange city of Dana Point, Dana Point Harbor, Dana Harbor Drive near Cove Road 9 Comment
  UCR240189  Geranium incanum var. multifidum R. E. Riefner Jr. 2012-12-5 12- 588 Orange South Coast, city of Dana Point, Dana Point Harbor, Dana Harbor Drive near Cove Road 9 Comment
  RSA3189  Gilia angelensis C. B. Wolf 1932-3-8 2674 Orange 1/2 mile N of Corona del Mar, Newport Bay. 8 Comment
  SEINET7073547  Gilia angelensis A. G. Vestal 1963-3-27 s.n. Orange Ridge above Cai+-ada Gobernadora. Coordinate datum: NAD27. Comment
  UC133970  Gilia angelensis C. F. Baker 1904-4-1 4111 Orange Anaheim Comment
  SEINET6969922  Gilia angelensis W. P. Vestal, A. G. Vestal 1955-3-24 3460 Orange Trabuco Canyon, about 5 miles east of El Toro. Comment
  UCSB5079  Gilia capitata subsp. abrotanifolia Kamb, Peter 1948-6-19 Orange SE slope of Santiago Peak; Santa Ana Mts. 1219 Comment
  UCR188946  Gilia clivorum Robert DeRuff 1985-3-16 252 Orange Newport Beach, Upper Newport Bay, Eastbluff 31 Comment
  RSA698358  Gilia tricolor Kenneth Beard s.n. Orange Silverado Canyon. 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
  UCR241903  Glebionis coronaria Fred M. Roberts 2012-4-24 7521 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
  RSA612342  Glycyrrhiza lepidota L. C. Wheeler 1932-7-9 942 Orange Santa Ana River 5 miles below Prado. 152 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
  IRVC450  Gnaphalium bicolor D. Pfirrmann 1965-4-24 Orange 2179 Orange Ave. Costa Mesa Comment
  IRVC18037  Gnaphalium luteo-album Gordon A. Marsh 1983-8-27 Orange San Joaquin Freshwater Marsh, NE side near pump house; center of road. Irvine Comment
  UCR237827  Gnaphalium microcephalum Mark A. Elvin 2003-2-2 2266 Orange South Coast, San Joaquin Marsh, UCI campus SSE of intersection of Jamboree Blvd. and Campus Dr. 2 Comment
  POM201938  Gnaphalium palustre L. M. Booth 1932-5-24 1086 Orange Newport Lagoon. Comment
  UCR208624  Gnaphalium palustre O. F. Clarke 2004-5-29 s.n. Orange Santa Ana River Canyon, Santa Ana River on the west side of Featherly Park 110 Comment
  UCR242757  Grindelia camporum Fred M. Roberts 2012-5-10 7578 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
  IRVC21315  Grindelia camporum var. bracteosa Fred M. Roberts 1982-7-31 790 Orange 0.3km NNW Clemente Survey Mark; 1.2km NNE Civiv Center, San Clemente 220 Comment
  RSA703683  Grindelia camporum var. bracteosa Fred M. Roberts, David E. Bramlet 2004-11-5 6126 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, west slopes of Cristianitos Cyn., 0.79 km N Sycamore Gate and 0.18 km W Cristianitos Road. 146 Comment
  UC407318  Grindelia hirsutula LeRoy Abrams 1903-4-19 3273 Orange Capistrano Comment
  UCSB48220  Grindelia hirsutula Roberts, Fred 1981-6-20 Orange Dana Point: 0.7km ENE Dana Hills High School 76 Comment
  LA97587  Gutierrezia californica David S. Verity; 1974-2-20 sn Orange hills behind South Laguna Comment
  RSA734692  Gutierrezia californica A. C. Sanders, Fred M. Roberts 2008-6-17 35503 Orange Weir Canyon, Windy Ridge Rd., saddle on ridge at head, above the Eastern Transportation Corridor 400 Comment
  UCR151117  Gutierrezia californica Scott D. White 1998-10-15 7188 Orange Santa Ana Mtns foothills, Yorba Linda, c. 0.5 mi south of Telegraph Canyon between Ohio St. and Fairmont 305 Comment
  UCR26139  Haplopappus menziesii John C. Roos 1949-10-1 4683 Orange South Coast, Doheny Beach 0 Comment
  UCR162346  Haplopappus venetus subsp. furfuraceus Robert DeRuff 2003-11-28 525 Orange Southern Coast, Newport Beach, Upper Newport Back Bay 30 Comment
  RSA0066582  Harpagonella palmeri R. E. Riefner 1995-3-29 95 -62 Orange San Clemente State Beach. Comment
  RSA0066596  Harpagonella palmeri D. E. Bramlet 2003-3-20 3352 B Orange Donna O Neill Reserve. 122m west of Cristianitos Road, and 1.7 km north of the E-W access road. The site is just north of an ephemeral stream channel. 134 Comment
  RSA0066597  Harpagonella palmeri R. E. Riefner Jr. 2000-4-27 20 -391 Orange NCCP North Ranch Policy Plan Area. Along dirt road running S from Baker Cyn. Road to Silverado Road. 335 Comment
  POM18137  Hazardia squarrosa var. grindelioides P. A. Munz 1923-9-7 7762 Orange On way from trabuco canyon to Santiago Peak, Santa Ana Mts 915 Comment
  RSA871  Hazardia squarrosa var. grindelioides J. T. Howell 1927-10-22 758 Orange Bluffs near eastern boundary, Rancho Santa Ana 213 Comment
  RSA732000  Hedypnois cretica A. C. Sanders, Fred M. Roberts 2008-4-22 35059 Orange Penisular Range; Lomas de Santiago, Loma Ridge c. 1/4 mi. SE of VABM Bee, above Bee Canyon landfill on road from Hicks Canyon Haul Rd. to Limestone Canyon. c. 3.5 mi. WSW of Silverado. 493 Comment
  RSA0057939  Hedypnois cretica Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49670 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. Comment
  POM202170  Helenium puberulum L. M. Booth 1932-7-19 1285 Orange Bolsas Marsh. Comment
  RSA734962  Helianthemum scoparium A. C. Sanders, Fred M. Roberts, A. O'Neal 2008-5-9 35309 Orange Weir Canyon, along fire line/bulldozer cut, c. 1.5 mi. east of Walnut Cyn Reservoir. 346 Comment
  UC1121541  Helianthemum scoparium A. Lewis 1934-3-1 359 Orange Head of Hagador Canyon Cleveland National Forest, Corona Quad. 1112 Comment
  CAS-BOT-BC305444  Helianthus annuus Ira L. Wiggins 1966-5-18 20662 Orange Along Associated Road between Yorba Linda Blvd. and Imperial Highway Comment
  UCD132887  Helianthus annuus Ira L. Wiggins 1965-11-6 20339 Orange Kraemer Oil Estates, near well no. 14, near end of county road leading to Rancho santa Ana (extension of Orangethorpe Blvd.) Comment
  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
  CAS-BOT-BC305655  Helianthus ciliaris T. C. Fuller 1962-6-7 8874 Orange Veeh ranch, n. of El Toro, ca. 11 mi. s.e. of Tustin Comment
  CAS-BOT-BC305657  Helianthus ciliaris E. Paddock 1942-7-21 11291 Orange Toler Ranch, N. side Ocean Ave., 1/4 mi. W. of La Mirada Rd., LaHabra Comment
  CAS-BOT-BC305658  Helianthus ciliaris E. L. Paddock 1941-8-1 s.n. Orange Graham-Loftus property, 2 miles east of Brea Comment
  SEINET13387984 Image available Helianthus ciliaris T. C. Fuller 1962-6-7 8874 Orange Abundant on hillside in grain, Veeh Ranch, N. of El Toro, CA. 11 mi. SE of Tustin Comment
  UCD132779  Helianthus ciliaris T. C. Fuller 1962-6-7 8874 Orange Veeh ranch, north of El toro, around 11 miles southeast of Tustin. Comment
  IRVC14820  Helianthus gracilentus A. S. Boughey 1968-7-9 401 Orange Santa Ana mtns: upper Santiago Canyon. Peninsular Ranges Comment
  UCR193781  Helianthus gracilentus A. C. Sanders, Fred M. Roberts 2008-7-3 35696 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
  RSA0031764  Helianthus gracilentus R. F. Thorne 1977-11-21 50810 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs Comment
  RSA696163  Heliotropium M. Funakoshi 1941-11-27 s.n. Orange Santa Ana. Comment
  RSA749044  Heliotropium curassavicum A. C. Sanders, Fred M. Roberts 2008-8-7 35983 Orange lower Weir Canyon, at narrow gorge c. 0.6 mi. above mouth of cyn at Irvine Ranch gate 185 Comment
  CDA40618  Heliotropium curassavicum Bumgardner & Harnett 1957-7-23 s.n. Orange Santa Ana Freeway. 0 Comment
  POM369760  Heliotropium curassavicum var. oculatum Albert J. Perkins 1912-6-8 s.n. Orange Foothills, north of Laguna Beach. Comment
  RSA650818  Heliotropium curassavicum var. oculatum Daniel Truong 1991-5-13 27 Orange Irvine Regional Park, left field adjacent to main entrance, within 1/4 mile radius of 'closed area' Comment
  CAS-BOT-BC305899  Helminthotheca echioides Ira L. Wiggins 1965-11-5 20322 Orange Near corner of Dowling Street and Crowther Avenue. 1/2 mi. S of Placentia Comment
  RSA594890  Hemizonia australis Fred M. Roberts 1992-9-9 4847 Orange Irvine: San Joaquin Freshwater Marsh, 2.0 km NW University of California Irvine campus center 2 Comment
  IRVC20825  Hemizonia fasciculata Fred M. Roberts 1982-7-30 785 Orange Niguel Hill, 0.9km ENE Aliso Peak, Laguna Niguel 260 Comment
  POM360262  Hemizonia fasciculata F. R. Fosberg 1930-7-10 455 Orange Anaheim Landing. [Los Angeles Co. on label] Comment
  UCR193798  Hemizonia fasciculata A. C. Sanders, Fred M. Roberts 2008-7-3 35682 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor 415 Comment
  POM47592  Hemizonia fasciculata I. M. Johnston 1924-8-29 s.n. Orange 1 mile north of Santa Ana. Comment
  UCR158023  Hemizonia parryi subsp. australis Adrian Wolf 1998-7-1 425 Orange South Coast, University of California, Irvine East Campus, corner of Bonita Canyon Rd.and Culver on west side of road 70 Comment
  UCR261698  Hemizonia parryi subsp. australis Dick Newell, Don Millar, Judy Booth 2015-5-27 407 Orange South Coast, Newport Beach, New Delhi Channel near University Drive 4 Comment
  UCR66261  Hemizonia parryi subsp. australis D. E. Bramlet 1990-11-3 2064 Orange W side Upper Newport Back Bay, c. 50 m NW of the Delhi channel. Population c. 100 m SE of end of University Dr. 23 Comment
  RSA0001299  Hemizonia parryi subsp. australis D. D. Keck 1933-9-29 2537 Orange Seal beach. Comment
  RSA695596  Hemizonia pungens subsp. pungens Keith E. Hoffmaster 1937-6-27 s.n. Orange Midway City. Comment
  CAS-BOT-BC403798  Hesperocnide tenella D. L. Crawford 1916-7-1 1959 Orange Near Laguna Comment
  UCR98232  Hesperocnide tenella B. G. Pitzer 1997-4-15 3138 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
  CAS-BOT-BC143753  Heteromeles arbutifolia C. B. Wolf 1932-3-6 1840 Orange Trabuco Canyon 1/2 mi. above Trabuco Oaks, west slope of Santa Ana Mts. 457 Comment
  RSA0072389  Heteromeles arbutifolia K. M. Meyer, A. Townesmith, T. Scott 2007-3-10 3 Orange Cleveland National Forest, 0.5 mi. N Main Divide Rd./NF3S04, off Hwy. 74. Elsinore Mtns., ridge top. 917 Comment
  UCD113321  Heteromeles arbutifolia K. M. Meyer; A. Townesmith and T. Scott 2007-3-10 3 Orange Cleveland National Forest, 0.5 mi. N. Main Divide Rd./NF3S04, off Hwy. 74. Elsinore Mountains, ridge top. 917 Comment
  UCR231191  Heteromeles arbutifolia A. C. Sanders, T. B. Salvato, Kent Beaman 2011-11-3 39936 Orange Peninsular Range; Santa Ana Mtns., near Pleasants Peak along the Main Divide Truck Trail 1152 Comment
  IRVC796  Heterotheca grandiflora B. Newman 1965-3-14 Orange Dana Point Comment
  IRVC799  Heterotheca grandiflora A. S. Boughey 151 Orange [San Juan Canyon], Ortega Hwy, 1mi E San Juan Guard Sta. Santa Ana Mountains Comment
  SEINET7073546  Heterotheca grandiflora A. G. Vestal 1963-3-27 s.n. Orange Ridge above Cai+-ada Gobernadora. Coordinate datum: NAD27. Comment
  UCD150986  Heterotheca grandiflora D. S. Park 2010-4-25 32 -1 Orange Whiting Ranch Wilderness Park, along trail. 226 Comment
  UCR193610  Heterotheca grandiflora A. C. Sanders, Fred M. Roberts 2008-5-6 35236 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 290 Comment
  UCSB44177  Heterotheca grandiflora Henneman, J. 1977-5-21 Orange Newport Back Bay 6 Comment
  CAS-BOT-BC318901  Heterotheca grandiflora F. H. Billings 1923-3-1 s.n. Orange Santa Ana wash Comment
  CAS-BOT-BC318904  Heterotheca grandiflora J. Ewan 1931-10-3 s.n. Orange 1/2 mile above La Vida Soda Springs, Carbon Canyon Comment
  RSA0075809  Heterotheca grandiflora Kenneth Beard 1934-03 s.n. Orange Riverbank of Santa Ana River. Comment
  RSA0075810  Heterotheca grandiflora Minor Warne 1934-5-12 s.n. Orange Newport Bluffs. Comment
  RSA0075817  Heterotheca grandiflora I. L. Wiggins 1966-3-16 20523 Orange Recent road cut near Orange County refuse disposal area. Comment
  RSA0075818  Heterotheca grandiflora F. W. Peirson 1920-1-9 2350 Orange Sand near the point at Balboa Beach. Comment
  JEPS2412  Heterotheca sessiliflora subsp. echioides L. M. Booth 1932-7-29 1330 Orange Newport Bay Comment
  RSA539418  Heterotheca sessiliflora subsp. echioides Fred M. Roberts, D. Willick 1988-9-16 4135 Orange Peralta Hills: Oak Canyon Nature Center, Upper Walnut Canyon, 1.1 km N Robbers Peak 177 Comment
  SEINET10813378  Heterotheca subaxillaris David B. Dunn 1971-8-13 Dunn 18130 Orange Cultivated plants vicinity of Laguna Beach, CA. Comment
  CAS-BOT-BC55404  Hirschfeldia incana Alice Eastwood 1936-4-5 s.n. Orange Santa Ana. Bixby Botanic Garden. Comment
  UCR119313  Holodiscus discolor R. E. Riefner Jr. 2000-6-22 20- 574 Orange Santa Ana Mountains, North Ranch Policy Plan Area, NE property, along National Forest boundary, at powerline 756 Comment
  CAS-BOT-BC150003  Holodiscus discolor var. discolor B. D. Stark 1931-6-10 2248 Orange East fork of Claymine Canyon, north end of Santa Ana Mountains 304 Comment
  CAS-BOT-BC150009  Holodiscus discolor var. discolor C. B. Wolf; E. R. Johnson 1933-11-3 5527 Orange Santa Ana Mts., main divide motorway, slopes of Modjeska Pk. on rd. to Santiago Pk. 1524 Comment
  RSA588791  Hordeum depressum Fred M. Roberts, Dave Bontrager 1990-4-18 4571 Orange Rancho Mission Viejo: Canada Chiquita, east side of canyon near mouth, 2.7 kilometers SSE Median Rancho Survey Marker., UTM Z11 37 10 000N, 4 43 800m E 79 Comment
  RSA0127605  Hordeum intercedens Fred M. Roberts 2016-3-25 8035 Orange San Joaquin Hills: Bommer Canyon, west slope above Nature Loop Trail, 0.3 km SW Cattle Camp and 1.6 km NE summit of Signal Peak. 157 Comment
  RSA642525  Hordeum intercedens D. E. Bramlet, Sandy Leatherman 1998-5-21 2624 Orange Adjacent to ridgeline road 122m north of the Segunda Deshecha Canada access road (Tleaga Valley Dr.) And 152m west of Wilson Camp Road. 2.68km northeast of Avenida Pico and 1.52 km west of Cristianitos Canyon., San Clemente 7.5 USGS Quadrangle. T8S R7W NW 1/4 of the NE 1/4 of Section 14. UTM 11S 04 114mE X 37 04 708mN. 219 Comment
  RSA642530  Hordeum intercedens D. E. Bramlet 1998-5-19 2621 Orange San Juan Hills. 4,400 ft. west of La Pata Ave. and 10,000 ft. north of Prima Deshecha Canada. On a ridgeline 500 ft. east of a small canyon., UTM 11S 04 41 529mE X 37 06 455mN. 91 Comment
  RSA704072  Hordeum intercedens D. E. Bramlet, Fred M. Roberts 2003-5-1 3423 Orange Donna O'Neill Reserve: Along the north ridge trail, 305m west of Cristianitos Rd. and 1 km north of the E-W access road. 128 Comment
  UCR104090  Hordeum intercedens D. E. Bramlet 1993-4-18 2332 Orange Tustin, University of California, Irvine Campus, on the UCI Ecological Reserve. Site is 500 ft SW of the end of Los Trancos Dr. and 75 ft NW of the reserve entrance 49 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
  UCR158149  Hordeum intercedens Adrian Wolf 1998-5-4 204 Orange South Coast, Coastal Hills, Aliso/Woods Canyon Regional Park, trail to Dripping Cave, in Woods Canyon 1 km up from confluence with Aliso Canyon, west of Sheep Hills, south of Dripping Cave 134 Comment
  UCR168468  Hordeum intercedens D. E. Bramlet, Fred M. Roberts 2003-5-15 3436 Orange Donna O'Neill Reserve, SE corner of Reserve 152 m west of Cristianitos Road and 731 m N of Pico, 122 m NW of the SDGE Substation 98 Comment
  JEPS71234  Hordeum marinum subsp. gussoneanum L. M. Booth 1932-5-12 1013 Orange Newport Bay Comment
  UCR217289  Hordeum murinum Mark A. Elvin 2003-3-30 2393 Orange South Coast, north side of UC Irvine Preserve, between core of UCI campus (E Peltason Dr.) and Hwy 73 69 Comment
  RSA55  Hordeum murinum subsp. leporinum J. T. Howell 1928-3-17 869 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  POM305048  Horkelia cuneata subsp. puberula Henry J. Ramsey 1937-1-9 374 Orange San Juan Canyon 152 Comment
  UC582823  Horkelia cuneata subsp. puberula Philip A. Munz 1936-4-20 14606 Orange Laguna Beach Mt. Olympus 152 Comment
  UCR263677  Horkelia cuneata var. cuneata Mark A. Elvin 2001-4-8 1554 Orange South Coast, South San Clemente, west of I-5, SE of Avenida Califa 37 Comment
  UC1228876  Hydrocotyle verticillata Peter H. Raven 1961-10-15 16858 Orange dyke along rd. to Yorba Linda (just n. of U.S. Hwy. 91) 114 Comment
  RSA16349  Hypericum formosum var. scouleri P. C. Everett 1935-6-18 7184 Orange Santa Ana Mts., Main Divide Motorway to Santiago Pk., 1 mi. from Ortega Highway. 732 Comment
  RSA747712  Hypochaeris glabra Fred M. Roberts 2008-4-9 6867 Orange Dana Point: Dana Point Headlands, CNLM Preserve near Outlook 2, 0.7 km W Marine Institute (Dana Point Harbor). 52 Comment
  UC1543186  Hypochaeris glabra Donald G. Nelson 1935-4-6 234 Orange e San Juan Capistrano; Cleveland National Forest Comment
  UCR100447  Hypochaeris glabra B. G. Pitzer 1996-4-30 2782 Orange South Coast, Upper Newport Bay, Calif. Dept. Fish & Game Ecological Reserve, off (W of) Jamboree Road 6 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
  IRVC996  Ipomoea mutabilis McGuire 1965-5-10 Orange Corona del Mar. Newport Beach Comment
  SD181694  Isocoma menziesii Scott D. White 1998-10-19 7190 Orange Yorba Linda; ca. 0.5 mile south of Telegraph Canyon between Ohio St. and Fairmont. 149 Comment
  JEPS19116  Isocoma menziesii var. menziesii L. M. Booth 1933-10-18 Orange Newport Comment
  CHSC100702  Isocoma menziesii var. vernonioides R. E. Riefner Jr. 2004-9-18 04 -425 Orange City of Yorba Linda; Santa Ana River, Horseshoe Bend, near La Palma Rd. and Via Del Rio Rd. UTM 11S 0431519E 3749312N. NAD 83. 105 Comment
  POM4760  Isocoma menziesii var. vernonioides P. A. Munz 1918-5-18 2189 Orange Bluffs along coast Laguna. Comment
  SD41496  Isocoma menziesii var. vernonioides Edith A. Purer 1932-8-31 4871 Orange Near Route 101 on stabilized sand dunes Comment
  CAS-BOT-BC112434  Isolepis cernua Mark A. Elvin; D. Kelch 2006-12-9 5302 Orange Southern Coastal: Newport Backbay, Big Canyon, lower end. 3 Comment
  UCSB50641  Isolepis cernua Roberts, Fred; Allen, R. 1982-7-4 Orange Chino Hills: Tonner Canyon; 1.0 km. by road E jct. 57; 1.1 km. SE Bench Mark 499 165 Comment
  RSA696234  Isomeris arborea Minor Warne 1934-5-10 s.n. Orange Fairview bluff near Talbert Comment
  UC72699  Isomeris arborea E. A. Zumbro 1902-1 372 Orange Comment
  UCR239925  Iva hayesiana O. F. Clarke, D. Svehla 2003-5-7 s.n. Orange South Coast, Least Tern Reserve, just north of the mouth of the Santa Ana River, Huntington Beach 4 Comment
  CAS-BOT-BC340126  Jaumea carnosa Peter H. Raven 1957-9-28 11384 Orange At north limits of Surfside Comment
  POM361345  Jaumea carnosa L. C. Wheeler 1932-6-22 846 Orange Newport Bay, Orange County Comment
  RSA0059091  Jaumea carnosa Louis C. Wheeler 1932-6-22 846 Orange Newport Bay. 0 Comment
  RSA92200  Jaumea carnosa F. W. Peirson 1924-8-29 5076 Orange 3 miles from Balboa Beach. Comment
  RSA539363  Jepsonia parryi Fred M. Roberts Jr., R. L. Allen 1988-11-30 4165 Orange Aliso-Woods Canyon Regional Park: Niguel Hill, 0.8 km NE Aliso Peak, in Seaview Park. 277 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
  CAS-BOT-BC101960  Juglans californica Carl B. Wolf 1936-7-8 8103 Orange W. side of Durant St., Santa Ana 30 Comment
  RSA172  Juglans californica J. T. Howell 1927-7-27 485 Orange Near ranch, Rancho Santa Ana 152 Comment
  UCR247895  Juglans californica Fred M. Roberts 2013-8-9 7802 Orange Peninsular Ranges, SANTA ANA MTNS.: Lower Silverado Canyon along Silverado Creek on north side of Silverado Canyon Road, 0.8 km ENE Silverado School and 1.5 km up stream Black Star Road crossing. 325 Comment
  RSA0011056  Juglans californica J. R. Bruff 1936-11 s.n. Orange 1416 Durant St. Santa Ana. Comment
  RSA0011057  Juglans californica J. R. Bruff 1936-11 s.n. Orange Durant St. Santa Ana. Comment
  RSA0011065  Juglans californica Lyman Benson 1947-4-27 12340 Orange Carbon Canyon. Mr. Range: Puente Hills; Drainage area: Pacific Slope. 244 Comment
  CAS-BOT-BC414248  Juglans hindsii R. E. Riefner, Jr. 2014-7-10 14 -240 Orange City of Laguna Beach, Laguna Canyon, Sun Valley Dr. along creek near Stan's Ln. 73 Comment
  SD248444  Juglans hindsii R. E. Riefner Jr. 2013-11-6 13 233 Orange City of Laguna Beach, Laguna Canyon, N of Phillips Street on East side of Laguna Canyon Road. 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
  UCD169219  Juglans hindsii R. E. Riefner Jr. 2015-7-2 15- 191 Orange City of Laguna Beach, Laguna Canyon, ca. 0.25 mi S of El Toro Rd. on E side of Laguna Canyon Rd. 75 Comment
  RSA0022439  Juglans regia Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49798 Orange Santa Ana Mountains: Trabuco Canyon, below Yaeger Mesa Comment
  RSA795707  Juncus W. R. Ferren 1991-12-3 EPA- 18 Orange Cook Creek, tributary to Aliso Creek, San Juan Capistrano. Comment
  CAS-BOT-BC110026  Juncus acutus L. R. Abrams 1917-6-23 6572 Orange Balboa. Comment
  UCR207558  Juncus acutus O. F. Clarke 2004-6-23 s.n. Orange South Coast, Newport Back Bay, just south of the Muth Interpretive Center 15 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
  UCR158025  Juncus acutus subsp. leopoldii Adrian Wolf 1998-7-21 360 Orange South Coast, Emerald Canyon, Laguna Coast ranges, 1.5 km up canyon from Pacific Coast Hwy, 2.5 km east of El Moro Trailer park 91 Comment
  UCR193797  Juncus balticus A. C. Sanders, Fred M. Roberts 2008-7-3 35706 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
  UCSB48028  Juncus bufonius var. bufonius Roberts, Fred 1980-5-4 Orange Mission Viejo: along Santa Fe Railroad and Camino Capistrano; 1.7km N Crown Valley Parkway; 1.1km S BM 316 14 Comment
  UC729648  Juncus mexicanus E. R. Johnson 1932-5-5 Orange Santa Ana River bottom, near ranch house Santa Ana Canyon, Rancho Santa Ana 121 Comment
  RSA562612  Juncus patens Steve Boyd, Fred M. Roberts 1992-10-14 7714 Orange Northern Santa Ana Mountains, vicinity of Oak Flats (aka Oat Flats) northeast of the junction of Main Divide Road and Skyline Road, just west of Riverside County line 800 Comment
  UCR138331  Juncus textilis R. E. Riefner Jr., Adrian Wolf 2000-1-24 20- 108 Orange Peninsular Range, Santa Ana Mountains: North Ranch Policy Plan Area, Fremont Canyon, north of Santiago Creek and immediately south of major stream fork 305 Comment
  UC520018  Juncus xiphioides Joseph Andorfer Ewan 1932-7-9 7484 Orange 4 mi below Rincon (Prado); Santa Ana River 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
  POM21178  Juncus xiphioides Helen D. Gels 1902-11 s.n. Orange Santa Ana [River?] Comment
  UCR144744  Juniperus californica Karlin G. Marsh 1980-1 s.n. Orange Rancho Mission Viejo, about 1 mile east [south] of San Juan Creek in tributary drainage east of intersection of Prima Deschecha Dump Rd. and Ortega Hwy [dump is at 32250 La Pata Ave., San Juan Capistrano] 152 Comment
  UCR162050  Juniperus deppeana var. pachyphlaea Robert DeRuff 2001-1 528 Orange Southern Coast, Newport Beach, Upper Newport Back Bay, near the UCI rowing center at Shellmaker Island 3 Comment
  JEPS15116  Keckiella antirrhinoides R. St. John 1931-3-31 201 Orange Mouth of Silverado Canyon; Corona Quad. 457 Comment
  RSA552937  Keckiella antirrhinoides Fred M. Roberts Jr. 1989-5-9 4339 Orange Santa Ana Mts: Gypsum Canyon, west fork, 5.6 km WNW Sierra Peak, c.a. 1 km S Highway 91. 146 Comment
  UC1280772  Keckiella antirrhinoides H. E. McMinn 1935-6-22 3920 Orange e base of n end Santa Ana Mountains Comment
  UCSB52861  Keckiella antirrhinoides Roberts, Fred; Marsh, K. 1984-4-21 Orange Santa Ana Mts; Lost Women Canyon at confluence with Silverado Canyon; 2.2km WSW Bald Peak; 2.2km SE Bedford Peak 625 Comment
  RSA0051385  Keckiella antirrhinoides subsp. antirrhinoides Robert F. Thorne, E. W. Lathrop, Walter 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
  NY790216  Keckiella cordifolia F. R. Fosberg 1931-6-21 S 5133 Orange Silverado Canyon, Santa Ana Mountains Comment
  RSA562763  Keckiella cordifolia Steve D. Boyd, Tim S. Ross 1992-5-19 7416 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
  RSA748264  Keckiella cordifolia A. C. Sanders, Fred M. Roberts 2008-6-17 35516 Orange middle section of Weir Canyon, SSE of Walnut Canyon Reservoir 225 Comment
  UC1063228  Keckiella cordifolia A. Lewis May 1934 426 Orange Trabuco Canyon; Elsinore Quad. 1341 Comment
  UCR193341  Keckiella cordifolia A. C. Sanders, Fred M. Roberts 2008-6-17 35460 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Hicks Canyon Haul Road 0.5 mi. east of the Foothill Transportation Corridor 244 Comment
  RSA542498  Keckiella ternata subsp. ternata Fred M. Roberts Jr., Richard E. Riefner 1988-7-19 4123 Orange Costa Mesa; Fairview Park, Just west of end of Canyon Drive, 0.1 km W Canyon School. 24 Comment
  RSA703685  Kickxia elatine Fred M. Roberts, David E. Bramlet 2004-7-30 6093 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, Cristianitos Cyn., parking area at Gato Gate and 0.06 km W Cristianitos Road. 96 Comment
  POM7128  Koeleria macrantha P. A. Munz, L. T. Street, G. Williams 1919-5-3 2633 Orange Santa Ana River Canyon. Comment
  RSA679227  Koeleria macrantha Fred M. Roberts 2003-6-25 5943 Orange Santiago peak, north slopes along ridge east of Main Divide truck trail, 0.6km NNW summit. 1605 Comment
  CAS-BOT-BC174783  Koelreuteria bipinnata T. B. Salvato; Katie Kurtz; Mitch Provance 2006-10-15 1903 Orange South Coast: Irvine, San Diego Creek flood control channel, between Campus Drive and Michelson Drive 6 Comment
  SD236409  Koelreuteria bipinnata T. B. Salvato, Katie Kurtz, Mitch Provance 2006-10-15 1903 Orange South Coast: Irvine, San Diego Creek flood control channel, between Campus Drive and Michelson Drive. Wide channel between high constructed berms. 6 Comment
  POM202181  Lactuca serriola L. M. Booth 1932-7-19 1283 Orange Bolsas Marsh. Comment
  RSA725536  Lactuca serriola Fred M. Roberts, Robert L. Allen 2007-9-28 6610 Orange Santa Ana Mtns.: Silverado Cyn., along Silverado Cyn. Rd. at eastern edge of town of Silverado. 347 Comment
  UCR193005  Lactuca serriola A. C. Sanders, Fred M. Roberts 2008-6-17 35457 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Hicks Canyon Haul Road 0.5 mi. east of the Foothill Transportation Corridor 244 Comment
  UCD63319  Lamarckia aurea A. A. Beetle 1942-4-19 3095 Orange Rt. 101. 2 miles north of Laguna Beach. Comment
  UCSB41749  Lamium amplexicaule Fountain, L. 1966-2-16 Orange Northwest corner of Orangethorpe and State College Blvd Comment
  UCSB52935  Lastarriaea coriacea Roberts, Fred 1984-5-1 Orange Wagon Wheel Regional Park; Wagon Wheel Canyon; 3.1km NE Median Rancho Survey Mark; 1.2km NNW BM 422 165 Comment
  IRVC19035  Lasthenia californica T. Ackerman 1982-4-24 82 -261 Orange south of Live Oak Canyon Rd., trail road from Methodist Church. Santa Ana Mountains Comment
  IRVC553  Lasthenia californica R. Hobsin 1965-4-10 Orange Back Bay near end of bay. Newport Beach Comment
  RSA695491  Lasthenia coronaria Minor Warne 1934-04 s.n. Orange Laguna Canyon Forks Comment
  UCR102024  Lasthenia glabrata B. G. Pitzer 1997-3-25 3015 Orange San Joaquin Hills, Crystal Cove State Park, Pelican Point Area, grassland between Pacific Coast Hwy and the bike trail 30 Comment
  UCSB69273  Lasthenia glabrata subsp. glabrata Sanders, A.; Roberts, Fred 2008-3-25 Orange Peninsular Range; Santa Ana Mtns.; saddle on ridge near head of Weid Canyon, 5.3 miles ENE of Villa Park, 3.1 mi. N of (Santiago Reservoir) Irvine Lake (Black Star Canyon 7.5' Q.; +/-1000m.) 405 Comment
  POM294108  Lasthenia gracilis Lyman Benson 1946-4-27 12056 Orange Corona Del Mar; Drainage area: Pacific Ocean. 15 Comment
  RSA3186  Lasthenia gracilis C. B. Wolf 1932-3-8 2677 Orange 1/2 mile N of Corona del Mar, Newport Bay. 8 Comment
  UCR203988  Lasthenia gracilis Fred M. Roberts 2008-3-12 6732 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
  SEINET6073121  Lathyrus laetiflorus Unknown 1988-1-12 5117 Orange Cleveland National Forest, San Juan Creek at Lower San Juan Campground. Comment
  UCR48003  Lathyrus latifolius Jack Easton 1987-4-21 s.n. Orange Southern Coast, Kain property, San Clemente, mouth of Trafalgar Canyon, just behind the beach 30 Comment
  JEPS57259  Lathyrus tingitanus L. R. Heckard and R. C. Bacigalupi 1968-5-8 1837 Orange just n of Doheny Beach Park (Dana Point); Dana Point Comment
  UCR220959  Lathyrus vestitus Dick Newell, Don Millar 2010-4-20 016 Orange South Coast Region, top of Serrano Ridge, 1 km west of the Nix Center/Laguna Canyon Rd. 229 Comment
  RSA406636  Lathyrus vestitus subsp. alefeldii M. B. Dunkle 1934-2-19 3844 Orange San Juan Canyon, 366 Comment
  IRVC11716  Lathyrus vestitus subsp. laetiflorus B. T. Gittins 1963-4-18 171-D Orange Silverado Canyon. Santa Ana Mountains Comment
  RSA488133  Lathyrus vestitus subsp. laetiflorus T. Mulroy 1973-5-21 1864 Orange Highway 74 ca 1 mile E of bridge across San Juan Creek. Comment
  UCR209357  Lathyrus vestitus subsp. vestitus Fred M. Roberts 2008-4-8 6850 Orange Lomas de Santiago, Loma Ridge, Upper Dripping Springs Cnyn, 1.0 km northeast of Bee Peak, Irvine Ranch Conservancy 458 Comment
  JEPS55289  Lathyrus vestitus var. alefeldii Frank W. Peirson 1925-4-10 Orange Silverado Canyon 457 Comment
  SFV17928  Lathyrus vestitus var. vestitus J. N. Hogue 1999-4-9 136 .2 Orange Santa Ana Mountains Silverado Canyon. Above Pine Canyon along Maple Springs Road. 700 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
  RSA794333  Lavandula dentata Justin M. Wood 2010-3-31 1451 Orange Santa Ana Canyon: Chino Hills State Park property just west of Green River Golf Course on bluff south of the river. 131 Comment
  CAS-BOT-BC380859  Layia platyglossa P. A. Munz 1918-5-4 2172 Orange Laguna Comment
  UC1543193  Layia platyglossa Donald G. Nelson 1935-3-30 196 Orange near mouth Brea Canyon (n of Brea, on Tonner Lease, in northern part of county); on Tonner Lease Comment
  UC718582  Layia platyglossa P. C. Everett 1935-4-15 6462 Orange 8/10 mi e of Atwood 106 Comment
  IRVC18939  Layia platyglossa T. L. Ackerman 1982-4-24 82 -260 Orange S of Live Oak Canyon Rd., on dirt trail from road to Methodist Church; disturbed chaparral; Santa Ana Mountains Comment
  RSA92179  Layia platyglossa subsp. campestris F. W. Peirson 1925-4-11 5747 Orange 5 miles south of Laguna Beach. Comment
  RSA0054938  Leonotis leonurus R. Engel 1934-10-10 s.n. Orange Santa Ana. 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
Read comments Feb 22 2017
  RSA787497  Lepechinia cardiophylla Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49705 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  UC909677  Lepechinia cardiophylla John Thomas Howell 1927-6-26 2606 Orange n Santa Ana Mountains, Claymine Canyon Claymine Canyon; Santa Ana Mountains, Claymine Canyon 609 Comment
  UCR27070  Lepechinia cardiophylla T. P. Krantz 1981-6-18 s.n. Orange Santa Ana Mtns, Ridge west of Sierra Peak along the roadside Comment
  CAS-BOT-BC89527  Lepidium lasiocarpum Philip A. Munz 1932-3-29 12191 Orange Costa Mesa. Comment
  POM183942  Lepidium lasiocarpum P. A. Munz 1932-3-29 12191 Orange Costa Mesa. Comment
  UCR261701  Lepidium lasiocarpum Dick Newell, Judy Booth 2014-5-28 378 Orange South Coast, Newport Beach and Back Bay, edge of parking lot above Muth Interpretive Center 17 Comment
  RSA753424  Lepidium lasiocarpum var. lasiocarpum D. E. Bramlet 2008-4-14 4176 Orange Eastern Upper Weir Cyn., 83m S dirt access road & 272 m west of Gypsum Cyn. 417 Comment
  IRVC1089  Lepidium nitidum J. Schram 1965-5-8 Orange Corona del Mar, Corona Highlands. Newport Beach Comment
  SD28156  Lepidium nitidum Carl B. Wolf 1932-2-15 2658 Orange Rancho Santa Ana Botanic Garden near the Tan Oak Beds 185 Comment
  JEPS53765  Lepidium virginicum Alice King 1908-3-9 Orange Anaheim Plain Comment
  UC1543086  Lepidium virginicum Donald G. Nelson 1935-4-15 308 Orange between Costa Mesa and Newport Beach Comment
  RSA328  Lepidium virginicum var. pubescens J. T. Howell 1927-6-21 175 Orange Near ranch houses, Rancho Santa Ana. 152 Comment
  RSA703703  Lepidospartum squamatum Fred M. Roberts, David E. Bramlet 2004-7-30 6089 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy Cristianitos Canyon, along Cristianitos Ck., 0.93 km SSW Gato Gate and 0.23 km W Cristianitos Road. 76 Comment
  RSA754068  Lepidospartum squamatum A. C. Sanders, Fred M. Roberts 2008-7-16 35864 Orange Lomas de Santiago, Santiago Creek wash at and above the confluence of Hangmans Tree Canyon 358 Comment
  UCR193821  Lepidospartum squamatum A. C. Sanders, Fred M. Roberts 2008-7-16 35864 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Creek wash at and above the confluence of Hangmans Tree Canyon 370 Comment
  UCR240072  Lepidospartum squamatum Dick Newell, Judy Booth 2012-9-4 285 Orange Peninsular Range; Santa Ana Mtns., city of Irvine, Fremont Canyon mouth [Irvine Lake Dam Spillway] at Metropolitan Water District Road, 0.3 mi due north of Santiago Dam 205 Comment
  HSC79611  Leptochloa fusca subsp. uninervia James Henrickson 1972-10-21 8059 Orange Eastern Anaheim, 2 blocks E. of Imperial Hwy. along La Palma Ave., just N of Santa Ana River. 61 Comment
  RSA712939  Leptochloa fusca subsp. uninervia Fred M. Roberts 2005-10-3 6304 Orange San Juan Capistrano: San Juan Creek wash, La Novia Road Bridge to 100m E of bridge, 1.4km E Mission San Juan Capistrano, 27 Comment
  UC1123917  Leptodactylon californicum A. Lewis Mar 1934 360 Orange Silverado Canyon; Cleveland National Forest, Corona Quad., Silverado Canyon Comment
  UC1377645  Leptodactylon californicum subsp. glandulosum John Ingram 1960-3-29 270 Orange 1 mi below O'Neill Park (Trabuco Canyon); , below O'Neill Park 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
Read comments Aug 10 2014
  RSA699631  Leptosiphon floribundus Keith E. Hoffmaster 1934-4-8 s.n. Orange Gypsum can (n. Corona), Santa Ana Mts Comment
Read comments Dec 11 2011
  RSA73675  Leptosiphon floribundus F. W. Peirson 1925-4-10 5741 Orange In Silverado Canyon. 610 Comment
  UCR239650  Leptosiphon floribundus subsp. floribundus Fred M. Roberts, Kay Stewart, Pamela Pallete, Bob Greenberg 2012-5-6 7549 Orange Santa Ana Mountains, Hot Springs Canyon, along San Juan Trail, 1.1 km north-northeast of San Juan Fire Station 351 Comment
  RSA731967  Leymus condensatus A. Sanders 2008-4-29 35137 Orange Lomas de Santiago, western end of Loma Ridge on road to shriff's training facility, c. 1.5mi SW of Santiago Reservoir. Comment
  UC971744  Leymus condensatus L. M. Booth 1932-5-30 1136 Orange Newport Bay Comment
  RSA0023265  Leymus triticoides R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49775 Orange Santa Ana Mountains: Trabuco Canyon Comment
  CAS-BOT-BC130580  Lilium humboldtii John Thomas Howell 1927-7-3 2645 Orange Claymine [Canon] Canyon, n. Santa Ana Mts. 304 Comment
  CAS-BOT-BC130581  Lilium humboldtii John Thomas Howell 1927-7-3 2645 Orange Claymine Canyon, n. Santa Ana Mts. 304 Comment
  UCR231358  Lilium humboldtii A. C. Sanders, Kent Beaman 2011-9-27 39911 Orange Peninsular Range; Santa Ana Mtns., Maple Springs Truck Trail, 3.4 km NNW (340 deg. ) of Santiago Peak 1088 Comment
  RSA771715  Lilium humboldtii subsp. ocellatum Robt. Allen, Richard S. Newell, Roger E. Reinke 2006-6-30 s.n. Orange Santa Ana Mts., Holy Jim Canyon Trail. About 1 mile up trail from forest gate. 609 Comment
  UCR113455  Lilium humboldtii subsp. ocellatum R. E. Riefner Jr. 2000-6-30 20- 594 Orange Santa Ana Mountains, North Ranch Policy Plan Area, N Fremont Canyon at Donaldson Ranch, adjacent to powerline crossing on W fork of Fremont Cyn drainage 427 Comment
  CDA23580  Limonium binervosum A. Thomas, Mark A. Elvin 2006-9-23 609237 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
  CLARK-A1528-3809  Limonium californicum John C. Roos 1937-8-31 740 Orange Newport Beach Comment
  IRVC29763  Limonium californicum Barry S. Nerhus, Mark A. Elvin 2006-11-4 8 Orange Huntington Beach, Bolsa Chica Wetlands, SW portion of Reserve beside Pacific Coast Highway. Southern Coastal 0 Comment
  RSA68751  Limonium californicum var. mexicanum F. W. Peirson 1924-8-29 5048 Orange 2.5 miles from Balboa on road inland along creek. Comment
  UCR177129  Limonium duriusculum R. E. Riefner Jr. 2002-5-4 02- 99 Orange South Coast, Upper Newport Bay, Jamboree Road at Bayview Dr., edge of Newport Beach Q. 21 Comment
  RSA723499  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
  RSA469962  Linanthus aureus Shaw 1923-03 s.n. Orange Near Irvine Comment
  CAS-BOT-BC226770  Linanthus californicus Munz; Street; Williams 1919-5-3 2629 Orange Santa Ana River Canon [Canyon] Comment
  RSA542451  Linanthus californicus Fred M. Roberts 1988-4-8 3892 Orange Lomas de Santiago: Loma Ridge, Central Linestone Canyon, 4.1 kilometers NNW Bolero Lookout. 323 Comment
  RSA753417  Linanthus dianthiflorus D. E. Bramlet 2008-3-31 4137 Orange 223m E of Upper Hicks Haul Rd, Trib. to Limestone Cyn, 1km S of Santiago Cyn Rd. 328 Comment
  UCR191778  Linanthus dianthiflorus A. C. Sanders, Fred M. Roberts 2008-3-25 34570 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
  SEINET6969978  Linanthus dianthiflorus W. P. Vestal, A. G. Vestal 1955-3-24 3459 Orange Trabuco Canyon, about 5 miles east of El Toro. Comment
  JEPS33699  Linanthus liniflorus John Thomas Howell 1927-6-8 2458 Orange Santa Ana Canyon 182 Comment
  UC564024  Linanthus parviflorus L. R. Abrams 1935-4-7 13681 Orange San Juan Hot Springs Mouth of San Juan Canyon Comment
  UC718484  Linanthus parviflorus C. B. Wolf 1935-4-7 Orange San Juan Hot Springs Santa Ana Mts., Mouth of San Juan Hot Springs Canyon 213 Comment
  RSA542497  Linaria canadensis var. texana Fred M. Roberts Jr. 1987-4-3 3346 Orange Costa Mesa; Fairview Park, Just west of end of Canyon Drive, 0.1 km W Canyon School. 24 Comment
Read comments Oct 17 2017
  RSA700539  Linaria canadensis var. texana Frances Battey s.n. Orange Orange Co. Park. Comment
  UCR186427  Linum grandiflorum Robert DeRuff 1994-5-16 469 Orange Southern Coast, Newport Beach, Newport Back Bay, south of 23rd St., below a row of houses 5 Comment
  CAS-BOT-BC432274  Lithophragma affine Frank W. Peirson 1925-4-11 5734 Orange Silverado Canyon, Santa Ana Mts. 609 Comment
  IRVC299  Lobelia dunnii var. serrata D. Christy 1965-5-5 Orange Corona del Mar, Begonia St. Newport Beach Comment
  IRVC1112  Lobularia maritima M. McCartin 1965-5-2 Orange San Juan Capistrano. Southern Coastal Comment
  RSA719409  Lobularia maritima Fred M. Roberts, Robert L. Allen 2006-10-8 6426 Orange San Juan Capistrano: San Juan Creek Flood Control Channel, c.a. 0.2 to 0.3km N Stonehill Dr. bridge and 1.1km SSE Marco Forster Jr. High Sch. 4 Comment
  RSA651352  Lobularia maritima R. Spence 1974-8-13 s.n. Orange Upper Newport Bay. Comment
  RSA284  Loeflingia squarrosa J. T. Howell 1928-3-18 893 Orange Rancho Santa Ana, Botanic Garden. 152 Comment
  JEPS23240  Loeflingia squarrosa var. squarrosa Alice King 1908-1-1 Orange Anaheim Comment
  UCD66217  Lolium multiflorum A. A. Beetle 1942-4-19 3104 Orange Rt. 101. San Clemente. Comment
  RSA731970  Lolium perenne A. C. Sanders, Fred M. Roberts 2008-4-8 34735 Orange Peninsular Range: Lomas de Santiago, Loma Ridge, head of Hicks Canyon. S of Santiago Reservoir. 351 Comment
  UC729941  Lolium perenne Carl B. Wolf 1932-6-13 3728 Orange Fullerton; Malvern and Nicholas Avenues 53 Comment
  RSA226631  Lolium perenne subsp. multiflorum Christopher Davidson, G. Benny 1971-6-15 1547 Orange Brea Canyon, 0.5 mile N of Central Avenue, along Brea Creek, near Brea Oil Co. wells. Comment
  RSA6130  Lolium perenne subsp. multiflorum C. B. Wolf 1932-6-13 3728 Orange Storm drain at Malvern and Nicholas Aves; Fullerton. 53 Comment
  CLARK-A1528-2431  Lomatium lucidum John C. Roos 1960-5-30 Orange Santa Ana Mountains 1066 Comment
  SD152968  Lomatium lucidum Steve Boyd, Tim Ross 1992-5-20 7476 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 rodgrade to upper homestead. 349 Comment
  IRVC21254  Lomatium lucidum Fred M. Roberts 1982-7-7 735 Orange Niguel Hill, 1.6km SE Aliso Peak; 0.7km E BM 133, South Laguna 231 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
  IRVC325  Lonicera japonica B. Aldis 1965-4-25 Orange Slater Ave. Huntington Beach Comment
  UCR174025  Lonicera subspicata A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33052 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
  POM18126  Lonicera subspicata var. denudata P. A. Munz 1923-9-7 7738 Orange Santiago Peak, Santa Ana Mountains 1677 Comment
  UC1125290  Lonicera subspicata var. denudata A. Lewis Apr 1934 404 Orange Verdugo Canyon Cleveland National Forest, Corona Quadrangle Comment
  RSA450859  Lotus argophyllus Gordon Marsh, K. G. Marsh 1977-11-21 s.n. Orange Santa Ana Mts.: N side of Ortega Hwy, near Hwy marker #31, near O.C. Surveyor Bench Mark #3W-24-72. Comment
  POM186867  Lotus heermannii Joseph A. Ewan 1929-6-28 3621 Orange Santiago Canyon, Santa Ana Mts. 366 Comment
  RSA734346  Lotus salsuginosus A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34637 Orange Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 396 Comment
  UCR193847  Lotus salsuginosus A. C. Sanders, Fred M. Roberts 2008-7-16 35882 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Creek wash at and above the confluence of Hangmans Tree Canyon 370 Comment
  POM201833  Lotus scoparius L. M. Booth 1932-5-12 1025 Orange Newport Bay. Comment
  RSA5274  Lotus scoparius B. D. Stark 1933-1-17 4518 Orange Dana Point. 15 Comment
  RSA614343  Lotus scoparius B. Pitzer 1996-4-30 2802 Orange San Joaquin Hills Crystal Cove State Park, south of City of Irvine on State Hwy 1 (Pacific Coast Hwy). 15 Comment
  SFV11543  Lotus scoparius M. L. Vincent 1963-7-8 426 Orange Santa Ana Mountains 1 mile west of Highway 74, lower San Juan Campground. Comment
  IRVC22181  Lotus scoparius subsp. scoparius Fred M. Roberts 1985-4-8 1640 Orange San Joaquin Hills, Turtle Rock area, hill 1.1km SE French Hill, Irvine 196 Comment
  IRVC2243  Lotus scoparius subsp. scoparius S. Holloway 1965-4-1 Orange Corona del Mar. Newport Beach Comment
  RSA734684  Lotus scoparius var. scoparius A. C. Sanders, Fred M. Roberts 2008-5-6 35219 Orange Lomas de Santiago, lower Hicks Canyon near Irvine Ranch gate and road junction to cement plant 180 Comment
  UCR203987  Lotus scoparius var. scoparius Fred M. Roberts 2008-3-12 6729 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
  UCR99549  Lotus scoparius var. scoparius B. G. Pitzer 1996-4-30 2802 Orange San Joaquin Hills, Crystal Cove State Park, south of City of Irvine on State Hwy 1 (Pacific Coast Hwy) 15 Comment
  UC867303  Lotus strigosus I. W. Clokey 1932-3-1 5328 Orange Laguna Beach Comment
  UCR103215  Lotus strigosus Scott D. White 1997-2-19 4694 Orange Santa Ana Mtns, above Modjeska Canyon; proposed water tank site 488 Comment
  RSA697981  Lotus subpinnatus Unspecified s.n. Orange Orange County park Comment
  RSA406435  Lotus unifoliolatus M. B. Dunkle 1934-6-18 3988 Orange San Juan Canyon; Southern Coastal 305 Comment
  UC1608265  Lotus wrangelianus Steve Boyd and Tim Ross 1992-5-20 7485 Orange Lucas Canyon at the Lucas Canyon Trail crossing, just downstream from crossing, w edge of the San Mateo Canyon Wilderness Area Southern Santa Ana Mountains, San Mateo Canyon Wilderness Ar 320 Comment
  RSA90341  Lotus wrangelianus F. W. Peirson 1922-5-18 4083 Orange Santa Ana River Canyon Comment
  UCR207792  Ludwigia hexapetala O. F. Clarke 2004-6-23 s.n. Orange South Coast, Newport Back Bay, just south of the Muth Interpretive Center 15 Comment
  RSA48859  Ludwigia peploides subsp. peploides J. C. Roos 1949-10-1 4685 Orange Doheney Beach. [Now Capistrano Beach] Comment
  UCR109740  Ludwigia peploides subsp. peploides T. W. Fisher, R. E. Orth 1964-7-1 s.n. Orange Peninsular Range; Santa Ana Mtns., San Juan Creek off the Ortega Hwy 500 Comment
  SD227862  Ludwigia repens Scott D. White, Brian Leatherman 1997-6-12 5343 Orange East of San Juan Capistrano: San Juan Creek between Hwy 74 jtn. 45 Comment
  CAS-BOT-BC196229  Lupinus albifrons var. eminens Marcus E. Jones 1926-4-28 s.n. Orange Gaviota Canon [Canyon] Comment
  UCD107254  Lupinus bicolor C. L. Hitchcock 1966-3-15 24135 Orange 1/2 mile e. of Brea. Comment
  RSA34611  Lupinus bicolor subsp. microphyllus N. C. Cooper 1944-6-4 1334 Orange San Juan Canyon, lower camp ground. 457 Comment
  RSA699681  Lupinus bicolor subsp. microphyllus Keith E. Hoffmaster 1927-4-3 s.n. Orange Buena Park, San Onofre. Comment
  IRVC22067  Lupinus bicolor subsp. microphyllus Fred M. Roberts 1983-3-16 917 Orange Laguna Beach: Sycamore Hills, central ridge, 1.1km NNE jct. El Toro and Laguna Canyon Rds.; 5.4km [ESE] Signal Peak. Southern Coastal 156 Comment
  IRVC24501  Lupinus bicolor subsp. umbellatus Fred M. Roberts, Gordon Marsh 1986-2-28 2623 Orange Mission Viejo: N of Oso Parkway; 4.2km NNE Saddleback Community College. Southern Coastal 200 Comment
  IRVC2291  Lupinus bicolor subsp. umbellatus Pat Rolfe 1965-4-8 HS 0425 Orange Newport Beach Southern Coastal Comment
  CAS-BOT-BC216674  Lupinus excubitus subsp. hallii Carl B. Wolf 1932-5-27 3698 Orange 0.75 mile W of Atwood, S of Santa Fe RR 91 Comment
  CAS-BOT-BC216671  Lupinus excubitus subsp. hallii Charles Piper Smith 1946-4-12 46153 Orange Santa Ana Canyon Comment
  SEINET10452686  Lupinus excubitus subsp. hallii Stark 1933-2-3 STARK 19497 Orange Garden #6455 (from 1780 many generations). Comment
  UC82077  Lupinus excubitus var. hallii C. F. Baker 1903-4-1 4102 Orange Anaheim Comment
  HSC14829  Lupinus hirsutissimus S. M. Clapp 1966-4-7 17 Orange 3 mi. from Modjeska Canyon towards Silverado Canyon 152 Comment
  IRVC2323  Lupinus hirsutissimus A. S. Boughey 1965-6-15 155 Orange Ortega highway; ca. 1.0 mile E of San Juan Guard Station. Santa Ana Mountains Comment
  RSA619107  Lupinus latifolius subsp. parishii R. S. Woglum 1932-4-16 s.n. Orange Trabuco Canyon, Santa Ana Mountains, Cleveland National Forest Comment
  RSA588787  Lupinus longifolius Fred M. Roberts, D. Bontrager 1990-4-18 4575 Orange Rancho Mission Viejo: Chiquita Ridge, just west of Canada Chiquita, 2.9 km N Median Rancho Survey Marker 183 Comment
  RSA749636  Lupinus longifolius D. E. Bramlet, Fred M. Roberts 2008-4-4 4173 Orange Loma Ridge, beside existing dirt access rd. 1.16km west of Hicks Haul Rd. and 1.6 km SW of Santiago Cyn Rd. 369 Comment
  UC1543209  Lupinus longifolius Donald G. Nelson 1935-4-6 218 Orange up San Juan Canyon (n from summer ranger station on main highway, e of San Juan Capistrano, just s of boundary of Cleveland National Forest); just s of boundary of Cleveland National Forest Comment
  RSA749358  Lupinus microcarpus var. microcarpus Fred M. Roberts 2008-4-15 6897 Orange Lomas de Santiago: Loma Ridge, Lower Hicks Cyn., east ridge, 1.7 km E Rattlesnake Reservoir dam and 2.2 km W Bee Peak, Irvine Ranch Conservancy. 179 Comment
  UCR177694  Lupinus microcarpus var. microcarpus Fred M. Roberts 2003-5-1 5689 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
  RSA722341  Lupinus sparsiflorus Unspecified s.n. Orange Orange County park Comment
  UC1129703  Lupinus sparsiflorus A. Lewis 1934-3-1 361 Orange Silverado Canyon; Cleveland National Forest, Corona Quad., Silverado Canyon Comment
  UCR97724  Lupinus sparsiflorus Scott D. White 1997-2-19 4701 Orange Santa Ana Mtns, above Modjeska Canyon; proposed water tank site 488 Comment
  IRVC16565  Lupinus sparsiflorus subsp. sparsiflorus Gordon A. Marsh, Karlin G. Marsh 1978-5-2 s.n. Orange Santa Ana Mountains; Silverado Truck Trail. Peninsular Ranges 884 Comment
  RSA17206  Lupinus sparsiflorus subsp. sparsiflorus Percy C. Everett 1935-5-6 6754 Orange Rancho Santa Ana. along railroad embankment north of pear orchard. 122 Comment
  IRVC19804  Lupinus sparsiflorus subsp. sparsiflorus Karlin G. Marsh 1983-4-11 s.n. Orange Laguna Beach: Sycamore Hills, main ridge, head of El Toro-4 canyon. Southern Coastal Comment
  IRVC2342  Lupinus succulentus 1965-4-18 HS 0416 Orange Trabuco Canyon. Santa Ana Mountains Comment
  IRVC2350  Lupinus succulentus Ed Hazen 1965-4-1 HS 0417 Orange Trabuco Canyon Santa Ana Mountains Comment
  RSA653185  Lupinus succulentus David Barrios 1991-5-8 33 Orange 1500 ft. Northwest of Fairmont Ave and Quail cir. 365 Comment
  RSA685924  Lupinus succulentus Fred M. Roberts, D. E. Bramlet 2003-3-27 5623 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, Chistianitos Cyn., 0.79km N Sycamore Gate, 0.23km W Chistianitos Rd. 122 Comment
  UC1129752  Lupinus succulentus A. Lewis Mar 1934 348 Orange San Juan Hills; Corona Quad., San Juan Hills 396 Comment
  UCR250869  Lupinus succulentus Dick Newell, Don Millar 2014-4-15 364 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Agua Chinon wash 100 yards south of Box Canyon Road 396 Comment
  IRVC20345  Lupinus truncatus Fred M. Roberts 1983-3-10 892 Orange Dana Point Headlands: S of Scenic Drive, 0.3km W Dana Point Harbor; 0.8km S Richard Henry Dana School. Southern Coastal 60 Comment
  IRVC21273  Lupinus truncatus Fred M. Roberts, Karlin G. Marsh 1984-2-15 1203 Orange Casper's Regional Park: Rancho: Rancho Carrillo Rd., 1.0km NE Visitor Center; 3.0km SW Lucas Survey Mark, Santa Ana Mountains 150 Comment
  UCSB47609  Lupinus truncatus Roberts, Fred 1980-5-3 Orange Main Divide Truck Trail, 0.4 km. NNE Falcon Group Camp (near Blue Jay CG); Santa Ana Mountains 1067 Comment
  IRVC15185  Lupinus truncatus 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
  UCR274870  Lycium brevipes var. brevipes R. E. Riefner Jr. 2012-1-16 12- 7 Orange South Coast, city of Newport Beach, Corona Del Mar, Buck Gully, near Little Corona Beach, vicinity of Poppy Ave. and Ocean Blvd., slope adjacent to restroom facility 15 Comment
  RSA357139  Lycium californicum Robert F. Thorne 1975-4-6 45576 Orange San Joaquin Marsh: Near Irvine and coast. Comment
  SD237629  Lycium californicum T. B. Salvato 2010-9-27 5101 Orange South Coast: Dana Point Headlands, Harbor Point Park, south of Scenic Drive and Cove Road, beyond the end of Green Lantern Street, overlooking Dana Point Harbor (Dana Point 7.5'Q) 52 Comment
  UCR207557  Lycium californicum O. F. Clarke 2004-4-5 s.n. Orange South Coast, Newport Back Bay 3 Comment
  JEPS63273  Lycopus americanus John Thomas Howell 1927-9-24 3120 Orange Rancho Santa Ana R. bottom Rancho Santa Ana; Rancho Santa Ana R., Rancho Santa Ana 152 Comment
  UC536934  Lythrum californicum Lawrence M. Booth 1932-6-4 1147 Orange Newport Lagoon Comment
  UCR193929  Lythrum californicum A. C. Sanders, Fred M. Roberts 2008-7-16 35843 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Dripping Springs off Limestone Canyon, c. 7.5 mi. ESE of Tustin 391 Comment
  RSA0014842  Lythrum californicum J. T. Howell 1927-7-15 403 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  CAS-BOT-BC342684  Madia elegans L. R. Abrams 1901-6-15 1817 Orange Santiago Peak trail Comment
  RSA7394  Malacothamnus densiflorus var. densiflorus Carl B. Wolf 1933-8-24 5385 Orange along road south of Bedford Peak on main divide. 1098 Comment
  RSA433310  Malacothamnus fasciculatus M. B. Dunkle 1933-5-30 3581 Orange Santa Ana Canyon Comment
  RSA564300  Malacothamnus fasciculatus Scott D. White 1992-9-29 851 Orange Vicinity of City of Brea, immediately N of Carbon Canyon Road and E of Placentia Avenue, +/- 1 mi (airline) S/SE of Tonner Canyon. 183 Comment
  RSA59172  Malacothamnus fasciculatus E. K. Balls 1950-7-17 14928 Orange Native to Botanic Garden. 183 Comment
  OBI12363  Malacothamnus fasciculatus var. laxiflorus Robert F. Hoover 1968-6-10 11172 Orange Laguna Beach Comment
  RSA553110  Malacothamnus fasciculatus var. laxiflorus Fred M. Roberts 1989-5-9 4342 -A Orange Gypsum Canyon, west for,, 5.6 km WNW Sierra Peak, 1km S Hwy 91. 146 Comment
  CAS-BOT-BC175460  Malacothrix saxatilis A. C. Sanders 2008-4-29 35120 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
  CDA1074  Malacothrix saxatilis D. G. Kelch 2006-12-9 6 .54 Orange Along Newport Back Bay Dr. in side canyon. Comment
  UCR191228  Malacothrix saxatilis A. C. Sanders 2008-4-29 35120 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
  POM6233  Malacothrix saxatilis var. tenuifolia D. L. Crawford 740 Orange Aliso Canyon Comment
  UC68974  Malacothrix saxatilis var. tenuifolia H. M. Hall July, 1905 6728 Orange Santa Ana Canyon 121 Comment
  CAS-BOT-BC347889  Malacothrix saxatilis var. tenuifolia Philip A. Munz 1950-8-5 15478 Orange Rancho Santa Ana Botanic Garden, on Santa Ana River 198 Comment
  CDA25903  Malephora crocea Mark A. Elvin, D. G. Kelch 2006-12-9 5297 Orange Southern Coastal; Newport Backbay; Big Canyon, lower end. Comment
  UCR236677  Malephora crocea Fred M. Roberts, Lee Ann Carranza, Jeff Roseler 2008-10-9 7126 Orange South Coast, Dana Point, Dana Point Headlands, CNLM Preserve, at base of cliff along south edge, 0.7 km west of Marine Institute, Dana Point Harbor 3 Comment
  RSA696481  Malosma laurina J. R. Bruff 1934-6-30 586 Orange High school campus Comment
Read comments Sep 13 2013
  CAS-BOT-BC206641  Malva assurgentiflora L. R. Abrams 1917-6-23 6577 Orange Balboa Comment
  RSA732087  Malva parviflora A. C. Sanders, Fred M. Roberts 2008-3-25 34534 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills. 259 Comment
  UCR109662  Malva parviflora G. S. Nuessly 1980-11-27 s.n. Orange Tustin. SE corner of 17th St. and Yorba Ave. 52 Comment
  UCR192466  Malva parviflora A. C. Sanders, Fred M. Roberts 2008-3-25 34534 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  UCR193003  Malva parviflora A. C. Sanders, Fred M. Roberts 2008-6-17 35456 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Hicks Canyon Haul Road 0.5 mi. east of the Foothill Transportation Corridor 244 Comment
  UCR107222  Malvella leprosa Scott D. White 1998-6-26 6779 Orange Irvine, University of California, Irvine campus: low-lying seasonal wetland along mapped intermittent 'blueline' stream just north of Bonita Canyon Drive 70 Comment
  UCR16327  Malvella leprosa N. J. Moriarty 1973-5-20 - 2 Orange Huntington Beach, 0.7 mi. north of Golden West Blvd. on west side of Pacific Coast Highway Comment
  RSA488  Marah macrocarpa J. T. Howell 1927-6-6 45 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  SD143935  Marah macrocarpa Scott D. White 1996-12-20 4633 Orange Santa Ana Mtns above Modjeska Canyon. Proposed water tank site. 424 Comment
  RSA658481  Marrubium vulgare J. Berkley 1994-5-3 6 Orange Carbon Canyon Regional Park, west slope off the bike trail coming from Rose Drive, behind the dam on the hill before you turn the corner into the park. Comment
  CAS-BOT-BC348165  Matricaria discoidea Ira L. Wiggins 1966-3-19 20535 Orange Hills of Irvine Ranch, southeast of U.C. Irvine 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
  JEPS13969  Matthiola incana D. L. Crawford 1922-8-3 743 Orange Aliso Point; Laguna Beach Region, Aliso Point Comment
  RSA797820  Meconella denticulata Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49809 Orange Santa Ana Mountains: Trabuco Canyon. Comment
  SD168149  Medicago polymorpha J. B. Anderson 1966-4-16 581 Orange Corona Del Mar; Buck Gully-Little Corona Beach. Comment
  RSA0054890  Medicago sativa Clyde Moesser s.n. Orange Santa Ana. Comment
  RSA755558  Medicago truncatula A. C. Sanders, Fred M. Roberts 2008-5-6 35258 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
  UCD170853  Medicago truncatula R. E. Riefner Jr. 2011-5-20 11 -55 Orange South Coast, city of San Clemente, Avenida La Pata one block west of Calle Extremo at entrance to Richard Steed Memorial Park. 161 Comment
  SD243385  Melaleuca 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 (San Joaquin Gun Club, Tustin 7.5'Q) 6 Comment
Read comments Oct 4 2017
  UCR241060  Melia azedarach Dick Newell, Don Millar, Judy Booth 2012-12-15 312 Orange Peninsular Range; Santa Ana Mtns., Fremont Canyon at mouth, 1/5 mi. NE of Irvine Dam spillway 206 Comment
  SEINET10942437  Melica frutescens Robert F. Thorne, Earl W. Lathrop; G. Marshs 1977-6-4 Thorne 49768 Orange Santa Ana Mountains, Trabuco Canyon. Comment
  CAS-BOT-BC94724  Melica imperfecta R. C. Wenk; P. Hopkinson; M. Hammond; P. Brownsey 2008-3-24 718 Orange Chino Hills State Park. South Ridge Road W of San Juan Hill, going W from Equestrian Staging Area. Top of ridge 1450 Comment
  RSA403491  Melica imperfecta A. M. Johnson 1934-4-15 4416 Orange Carmen's Laguna 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
  UC1146059  Melica imperfecta C. L. Hitchcock and C. V. Muhlick 1964-3-17 23071 Orange 8 mi e Yorba Linda; Santa Ana Canyon Comment
  UCD88061  Melica imperfecta R. Tofsrud 1951-4-1 s.n. Orange Orange-San Diego County borders: Santa Ana Mts. 609 Comment
  CDA25989  Melilotus indicus Mark A. Elvin 2004-5-2 3410 Orange Southern Coastal; Irvine: San Joaquin Freshwater Marsh, near Campus and University Drives; 1.7km (air) NNW UC Irvine campus center Comment
  IRVC2412  Melilotus indicus Anonymous 1965-3-14 s.n. Orange Dana Point. Southern Coastal Comment
  RSA678511  Melilotus indicus Valerie L. Soza, Kevin B. Clark, LeRoy Gross, Will Miller, Fred Roberts, Gary D. Wallace 2001-4-4 1128 Orange Seal Beach U. S. Naval Weapons Station, southwestern edge of Seal Beach National Wildlife Refuge. 3 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
  RSA750902  Melilotus indicus A. C. Sanders, Fred M. Roberts 2008-7-3 35711 Orange Weir Canyon, along Weir Canyon Rd. 1.2 mi. SSE of Walnut Canyon Reservoir, below Upper Blind Canyon Rd. 212 Comment
  POM201874  Melilotus indicus L. M. Booth 1932-5-12 1018 Orange Newport Bay. 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
  RSA734654  Mentzelia micrantha A. C. Sanders, Fred M. Roberts, A. O Neal, D. E. Bramlet 2008-5-9 35313 Orange Weir Canyon, along fire line/bulldozer cut, c. 1.5 mi. east of Walnut Cyn Reservoir. 346 Comment
  UCR192111  Mentzelia micrantha A. C. Sanders, Fred M. Roberts, Amber O'Neal 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 346 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
  POM201708  Mesembryanthemum crystallinum L. M. Booth 1932-6-29 s.n. Orange Newport Bay. Comment
  RSA18530  Mesembryanthemum crystallinum C. B. Wolf 1927-7-23 667 Orange Along the coast just north of San Clemente. Comment
  UC212958  Mesembryanthemum nodiflorum D. L. Crawford 1916-5-10 Orange Laguna Beach Comment
Read comments Jul 7 2008
  SEINET10973645  Mesembryanthemum nodiflorum Charlene A. Bennett 1976-7-22 Bennett 447 Orange Cutivated and native plants collected around the San Clemente Beach area. 3 Comment
  RSA773500  Micropus californicus var. californicus Fred M. Roberts 1999-5-14 5220 Orange Lomas de Santiago: Loma Ridge, Upper Limestone Canyon, 0.7 km NW Bolero Spring and 2.6 km SW Silverado School 502 Comment
  CAS-BOT-BC322629  Microseris douglasii subsp. platycarpha Scott D. White 1998-3-16 6210 Orange Site of proposed Research Park, southwest of main campus circle, ca. halfway between Berkeley Ave. and new freeway (Bonita Canyon), USGS Tustin 7 1/2 ' quad, University of California Irvine Campus, Irvine 36 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
  RSA649067  Microseris douglasii subsp. platycarpha D. E. Bramlet 2000-4-12 2973 Orange Fremont Canyon. The site is 335 m south of the existing access road on the north ridge of the canyon. The site is 1.21km northeast of Santiago Creek. 335 Comment
Read comments Feb 21 2007
  RSA649068  Microseris douglasii subsp. platycarpha D. E. Bramlet 2000-4-12 2973 Orange Fremont Canyon. The site is 335 m south of the existing access road on the north ridge of the canyon. The site is 1.21km northeast of Santiago Creek. 335 Comment
Read comments Feb 21 2007
  RSA649844  Microseris heterocarpa D. E. Bramlet 2000-4-12 2974 Orange Fremont Canyon. The site is 1.1 km south of the existing access road on the north ridge of the canyon. The site is 1.07 km northeast of Santiago Creek. 317 Comment
  RSA542589  Microseris lindleyi Fred M. Roberts 1988-3-15 3860 Orange Rancho Mission Viejo; Verdugo Canyon, 1.3 km SSW Lucan Survey Marker 201 Comment
  UCR191019  Microseris lindleyi A. C. Sanders, Fred M. Roberts 2008-4-22 35020 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Limestone Canyon, c. 2 miles SW of Silverado 396 Comment
  UC1294008  Mimulus E. K. Balls 1958-6-27 23729 Orange road from Silverado Canyon to Santiago Peak (3.8 mi from gate) 975 Comment
  RSA732280  Mimulus aurantiacus A. C. Sanders 2008-4-29 35134 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
  HSC20689  Mimulus aurantiacus subsp. australis S. M. Clapp 1966-4-10 52 Orange a few mi. S of Modjeska Canyon 122 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
  SEINET3078496 Image available Mimulus aurantiacus subsp. australis Geoffrey Matthews, Jim Hearne, Robin Maetche 1971-5-13 s.n. Orange 4 miles north of Morrill Valley on Hwy 74 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
  RSA443831  Mimulus aurantiacus var. pubescens Gordon Marsh, K. G. Marsh 1978-5-13 s.n. Orange S end of W portion of Coal Canyon at Main Divide Rd. 707 Comment
  RSA0113246  Mimulus aurantiacus var. pubescens Lyman Benson 1946-4-27 12057 Orange Corona del Mar. 15 Comment
  RSA33814  Mimulus aurantiacus var. puniceus N. C. Cooper 1944-6-4 1341 Orange San Juan Canyon. 305 Comment
  UCR194549  Mimulus brevipes A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35318 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along fire line/bulldozer cut, c. 1.5 mi. east of Walnut Cyn Reservoir 346 Comment
  RSA712936  Mimulus cardinalis Fred M. Roberts 2005-10-3 6291 Orange San Juan Capistrano: San Juan Creek wash, La Novia Road Bridge to 100m E of bridge, 1.4km E Mission San Juan Capistrano, 27 Comment
  RSA726  Mimulus cardinalis J. T. Howell 1927-7-6 283 Orange Santa Ana River bottom, Rancho Santa Ana 152 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
  UCR237814  Mimulus cardinalis Dick Newell, Judy Booth 2012-7-15 281 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, on Maple Springs Road 0.84 mi. NE of Maple Springs gate 638 Comment
  RSA285708  Mimulus clevelandii D. C. Michener 1982-5-24 4042 Orange Main divide truck route, 5.9 miles north of El Cariso Comment
  RSA82101  Mimulus clevelandii F. W. Peirson 1923-5-6 3509 Orange Trabuco Canyon to Santiago Peak 915 Comment
  POM193491  Mimulus floribundus Helen E. Sweet 1928-08 s.n. Orange Santiago Canyon. Comment
  RSA447957  Mimulus guttatus M. B. Dunkle 1934-6-18 3948 Orange San Juan Canyon. 305 Comment
Read comments Jun 14 2012
  RSA659635  Mimulus longiflorus T. A. Daubert 1991-5-19 654 Orange Tucker Wildlife Sanctuary, Modjeska Canyon nature trail. Comment
  SEINET10570241  Mimulus longiflorus Charlene A. Bennett 1976-7-21 Bennett 439 Orange Cultivated plants collected in and around the condominium pacific island estates In laguna hills; some native shrubs. 152 Comment
  UCR175448  Mimulus pilosus Mark A. Elvin 2005-9-2 4491 Orange Peninsular Ranges, Santa Ana Mtns: along San Juan Creek c. 1.0 km upstream from San Juan Hot Springs, off Ortega Hwy (74) near the bridge 259 Comment
  CHSC19537  Mirabilis californica P. Fehr 1974-4-10 1 Orange Beach of trailor park between Costa Mesa and Laguna Beach on w side of Coast hwy. 0 Comment
  RSA698208  Mirabilis laevis Stephen Bruff s.n. Orange Lemon Heights. Comment
  UCR191457  Mirabilis laevis A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34651 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
  JEPS61334  Mirabilis laevis var. crassifolia L. M. Booth 1932-5-12 1035 Orange Newport Bay Comment
  RSA276  Mirabilis laevis var. crassifolia J. T. Howell 1927-6-21 176 Orange Near ranch houses, Rancho Santa Ana. 152 Comment
  JEPS22597  Monanthochloe littoralis Lawrence M. Booth 1932-7-27 1318 Orange Newport Bay Comment
  SFV20018  Monanthochloe littoralis A. Dittmer, S. Dark 2004-10-3 77 Orange Bolsa Chica wetlands. Across the public access bridge (east) of the public parking area off Highway 1. Comment
  RSA735941  Monardella hypoleuca Justin M. Wood 2008-6-23 15 Orange Foothills of the Santa Ana Mountains, on the Irvine Ranch. S of limestone canyon, approx. 1/2 mile S of the sinks. 351 Comment
Read comments Aug 13 2012
  SD220682  Monardella hypoleuca subsp. hypoleuca Lisa Young 2009-6-18 Orange East end of the town of Silverado, on old mine trail heading south between Pine and Halfway Canyons. On top of a ridge. 835 Comment
  RSA0005447  Monardella hypoleuca subsp. hypoleuca Fred M. Roberts, R. E. Riefner 1988-7-19 4117 Orange Santa Ana Mtns: Upper Silverado Canyon, Maple Springs Truck Trail, 2.1km NNW Modjeska Peak. 1260 Comment
  JEPS127360 Image available Monardella hypoleuca subsp. intermedia A. C. Sanders, Mark A. Elvin 2005-9-2 31615 Orange Santa Ana Mountains: Upper Holy Jim Canyon, a major tributary of Trabuco Canyon, along the trail in the switchbacks. Santiago Peak 7.5' Qua. Comment
  SBBG128642  Monardella hypoleuca subsp. intermedia A. C. Sanders, M. A. Elvin 2005-9-2 31613 Orange near head of Holy Jim Cyn, a major tributary of Trabuco Cyn, along the trail in the switchbacks, below the towers on Santiago Peak; Santa Ana Mtns 998 Comment
  SD237500  Monardella hypoleuca subsp. intermedia A. C. Sanders, Mark A. Elvin 2005-9-2 34615 Orange Santa Ana Mountains: upper Holy Jim Canyon, a major tributary of Trabuco Canyon, along the trail in the switchbacks (Santiago Peak 7.5'Q) 975 Comment
  UC2035996  Monardella macrantha subsp. hallii P. C. Everett 1935-6-19 7223 Orange Santa Ana Mts., Main Divide Motorway 1.5 mi below summit Santiago Peak, E slope 1310 Comment
  CAS-BOT-BC349571  Monolopia lanceolata Carl B. Wolf 1932-3-14 2709 Orange Rancho Santa Ana Botanic Garden, native to slope below Pinus radiata bed 192 Comment
  UCR149449  Moraea iridioides Robert DeRuff 1997-1 503 Orange South Coast, Newport Back Bay, Santa Ana Heights 26 Comment
  CAS-BOT-BC275290  Muhlenbergia microsperma Carl B. Wolf 1932-3-8 2689 Orange 0.5 mile N of Corona Del Mar, borders of Newport Bay 7 Comment
  CAS-BOT-BC275291  Muhlenbergia microsperma J. C. Nevin 1904-1-1 s.n. Orange Newport Bluff Comment
  CAS-BOT-BC275294  Muhlenbergia microsperma John Thomas Howell 1927-6-5 2436 Orange Santa Ana Canon, N side 152 Comment
  RSA598923  Muhlenbergia microsperma Scott D. White 1997-3-28 4853 Orange Above Modjeska Canyon, proposed water tank site 425 Comment
  RSA790096  Muhlenbergia microsperma R. E. Riefner Jr. 2011-8-16 11 -99 Orange Newport Beach, Orange County Parks and Recreation lands, along Newport Coast Drive, between Vista Ridge Rd. & Alteza Rd. 281 Comment
  UCR235509  Muhlenbergia microsperma R. E. Riefner Jr. 2011-8-16 11- 99 Orange South Coast, Newport Beach, Orange County Parks and Recreation lands, along Newport Coast Drive, between Vista Ridge Road and Alteza Road 281 Comment
  RSA0028023  Muhlenbergia rigens Fred M. Roberts 2012-9-6 7696 Orange San Joaquin Hills: Buck Gully, Buck Gully Trail, west end near Poppy Street entrance, 2.1 kilometers WNW Pelican Hill summit. 37 Comment
  RSA0126617  Myoporum rapense Fred M. Roberts 2012-4-24 7496 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
  RSA799944  Nama stenocarpa Justin M. Wood 2011-6-28 4309 Orange South Coast: City of Costa Mesa; Fairview Park, just WNW of Marison Special Education Center. 24 Comment
  CAS-BOT-BC259969  Nassella lepida John Thomas Howell 1927-6-9 2464 Orange N side of Santa Ana Canon [Santa Ana Canyon] 152 Comment
  UCSB52916  Nassella lepida Roberts, Fred 1983-3-10 Orange Dana Point Headlands; south of Scenic Drive, 0.3 km W Dana Point Harbor; 0.8 km S Richard Henry Dana School 60 Comment
  RSA682758  Nassella pulchra Scott D. White, Amanda Duchardt 2003-3-27 8852 Orange Canyon bottom and west facing slopes above Canada Gobernadora. 91 Comment
  RSA743513  Nassella pulchra Fred M. Roberts 2008-4-9 6863 Orange Dana Point: Dana Point Headlands, CNLM Preserve near Outlook 2, 0.7 km W Marine Institute (Dana Point Harbor). 45 Comment
  UCD87541  Nassella pulchra C. L. Hitchcock 1966-3-15 24142 Orange Stearns Lease, 1.5 miles east of Brea. Comment
  UCR247872  Nasturtium officinale Fred M. Roberts 2012-9-6 7698 Orange SAN JOAQUIN HILLS: Buck Gully, Buck Gully Trail, west end near Poppy Street entrance, 2.1 km WNW Pelican Hill summit. 37 Comment
  RSA0037244  Nasturtium officinale Keith E. Hoffmaster 1927-6-13 s.n. Orange Santa Ana. Comment
  POM201688  Navarretia atractyloides L. M. Booth 816 Orange Santa Ana Canyon Comment
  CAS-BOT-BC109090  Nemacaulis denudata var. denudata Le Roy Abrams 1901-6-1 1757 Orange Anaheim Landing. Comment
  RSA756067  Nemacaulis denudata var. denudata O. F. Clarke 2004-7-19 s.n. Orange Least Tern Reserve, just north of the mouth of the Santa Ana River, Huntington Beach 4 Comment
  UCR207191  Nemacaulis denudata var. denudata O. F. Clarke 2003-5-7 s.n. Orange South Coast, Least Tern Reserve, just north of the mouth of the Santa Ana River, Huntington Beach 4 Comment
  LA9429  Nemacladus ramosissimus LeRoy Abrams; 1903-4-18 3268 Orange Capistrano Comment
  RSA0013951  Nemacladus ramosissimus Fred M. Roberts 2008-4-24 6930 Orange Lomas de Santiago: Loma Ridge, lower Hicks Cyn. 350 meters east of Haul Rd., 1.9 km E Rattlesnake Cyn. Reservoir dam and 2.1 km W Bee Peak. Irvine Ranch Conservancy. 180 Comment
  UC284870  Nemacladus ramosissimus P. A. Munz 1923-9-7 7769 Orange trail from Holy Jim Canyon to Santiago Peak; Santa Ana Mts. 1127 Comment
  JEPS2990  Nemophila menziesii Alice King March, 1908 Orange Anaheim Plains Comment
  RSA749469  Nemophila menziesii subsp. menziesii Fred M. Roberts 1999-4-22 5189 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
  JEPS1893  Nemophila menziesii var. integrifolia Alice King April, 1908 Orange Santa Ana Mountains Comment
  CAS-BOT-BC533010  Nephrolepis cordifolia R. E. Riefner, Jr. 2016-5-24 16 -155 Orange City of Laguna Niguel, Alicia Pkwy S of Seabird Way 96 Comment
  RSA13157  Nicotiana bigelovii var. wallacei Percy C. Everett 1935-6-28 7259 Orange 8/10 of a mi. east of Atwood. S. side of R. R. tracks. 1067 Comment
  RSA687  Nicotiana bigelovii var. wallacei J. T. Howell 1927-7-5 266 Orange West side, Rancho Santa Ana [Botanic Garden]. 152 Comment
  RSA0020230  Nicotiana clevelandii Philip A. Munz 1923-4-4 s.n. Orange Laguna Beach. Comment
  CAS-BOT-BC231674  Nicotiana glauca C. L. Hitchcock 1966-3-15 24144 Orange Stearns Lease, 1 1/2 miles e. of Brea Comment
  CDA1049  Nicotiana glauca D. G. Kelch 2006-12-9 6 .542 Orange Along Newport Back Bay Dr. in side canyon. Comment
  RSA701605  Nicotiana glauca Minor Warne 1934-2-1 s.n. Orange Santa Ana Mountains 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
  RSA751791  Nicotiana glauca A. C. Sanders, Fred M. Roberts 2008-7-3 35687 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
  SEINET7073413  Nicotiana glauca A. G. Vestal 1963-4-24 s.n. Orange La Paz Canyon, Rancho Mission Viejo. Coordinate datum: NAD27. Comment
  UCR100462  Nicotiana glauca B. G. Pitzer 1996-4-30 2761 Orange South Coast, Upper Newport Bay, Calif. Dept. Fish & Game Ecological Reserve, off (W of) Jamboree Road 6 Comment
  RSA662315  Nicotiana glauca Dolores Perez 1981-4-11 1 Orange Carbon Canyon Rd., 6 miles E. of junction with Ca Hwy 90. Comment
  SEINET7067536  Nicotiana quadrivalvis A. G. Vestal 1947-6-12 s.n. Orange Santa Ana River Wash northwest of Orange. Coordinate datum: NAD27. UTM Zone 11, 418667mE, 3739612mN. Comment
  JEPS59841  Nitrophila occidentalis Lawrence M. Booth 1932-6-7 1157 Orange Newport Bay Comment
  RSA594801  Nolina cismontana Fred M. Roberts, Nowak 1992-2-26 4836 Orange Santa Ana Mts. Ridge west of Black Star Canyon and north of confluence of Black Star Canyon and Santiago Canyon, 4.3 km ESE Irvine Lake spillway. 353 Comment
  RSA759249  Nolina cismontana Robt. Allen, Celia Kutcher 2007-5-19 s.n. Orange San Juan Trail, circa 3.4 air miles (5458m) below (southwest of) trailhead at southern edge of Blue Jay Campground, circa 1.3 air miles (2121m) above (northeast of) trailhead at Hot Springs Canyon. 736 Comment
  SD142047  Nolina cismontana James C. Dice 1985-5-23 593 Orange Santa Ana Mts., upper Borrego Cyn., along Santiago Cyn. Rd., 1.8 km S of Modjeska Cyn. Rd. 440 Comment
  CAS-BOT-BC176682  Nothoscordum gracile A. C. Sanders 2008-7-3 35714 Orange Peninsular Range; Santa Ana Mts.: Lomas de Santiago, Santiago Canyon near mouth of Limestone Cyn., at Agustione Staging Area 260 Comment
  RSA725515  Nyctocereus serpentinus Fred M. Roberts, Robert L. Allen 2007-9-28 6615 Orange Silverado Cyn., along Silverado Cyn. Rd. at eastern edge of town of Silverado. 347 Comment
  UC454579  Oenothera elata subsp. hirsutissima I. J. Condit 1908-7-20 Orange Los Alamitos Comment
Read comments Nov 20 2010
  POM225560  Oenothera elata subsp. hirsutissima P. A. Munz 1936-6-30 14176 Orange About 6 miles south of Garden Grove. Comment
  UC1007125  Oenothera elata subsp. hookeri P. A. Munz 1938-6-23 15569 Orange 1 mi below Capistrano; San Juan Creek Comment
  CDA5201  Oenothera speciosa Bill Amling 1957-7-23 Orange 0 Comment
  RSA658206  Oenothera speciosa T. A. Daubert 1991-5-26 671 Orange Tucker Wildlife Sanctuary, Modjeska Canyon nature trail. Comment
  UCR188930  Olea europaea Robert DeRuff 2007-11-24 s.n. Orange Newport Beach, Upper Newport Bay, near end of 23rd Street on west side of the Bay 1 Comment
  RSA759538  Olea europaea Robt. Allen 2006-12-13 s.n. Orange About 2 miles up from Live Oak Canyon Rd, SW of Trabuco Truck Trail, at base of north-facing hillside 395 Comment
  POM219209  Oligomeris linifolia L. M. Booth 1931-5-24 1097 Orange Bluff top N Newport Bay 8 Comment
  POM284080  Opuntia X occidentalis Lyman Benson 1955-10-17 15595 Orange Moulton Ranch just west of the summit east of Laguna Beach. 152 Comment
  POM288521  Opuntia X occidentalis Lyman Benson 1955-10-17 15597 Orange Moulton Ranch just west of the summit east of Laguna Beach. 152 Comment
  POM317734  Opuntia X occidentalis David Walkington 1963-5-17 167 Orange Above intersection of Dana Cove Park rd. and Green Lantern Dr., continuous slope with Dana Cove Park Rd. Dana Point. 61 Comment
  RSA743468  Opuntia X vaseyi Fred M. Roberts 2008-10-27 7127 Orange Dana Point: Dana Point Headlands, CNLM Preserve, near Strands Road Gate, 0.8km WNW Marine Institute, Dana Point Harbor. 65 Comment
  UCR263408  Opuntia littoralis A. C. Sanders 2008-4-29 35122 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
  RSA459611  Opuntia littoralis var. austrocalifornica M. B. Dunkle 1933-5-30 3583 Orange Santa Ana River Canyon Comment
  OBI7086  Opuntia oricola Walkington, Pinkava, G. Smith & McLeod, McLeod 1970-11-7 M 290 ; (DLW Orange Fullerton, W side of Euclid Ave., 1/2 mi N of Bastanchury Comment
  CAS-BOT-BC58074  Opuntia vaseyi B. D. Stark 1933-1-17 4512 Orange Field redacted by CAS, contact the data manager for more information 152 Comment
  UCR193274  Orobanche fasciculata A. C. Sanders, Fred M. Roberts 2008-6-17 35508 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, Windy Ridge Rd., saddle on ridge at head, above the Eastern Transportation Corridor 400 Comment
  RSA0059155  Orobanche fasciculata W. Pequegnat 1940-4-13 s.n. Orange Trabuco Peak, Santa Ana Mts. 1311 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
  JEPS38558  Osmadenia tenella H. L. Mason 1926-4-25 Orange Laguna Comment
  UC912573  Osmadenia tenella Herbert L. Mason 1926-4-25 2903 Orange 5 mi n of Laguna Comment
  UCR222414  Osmadenia tenella D. E. Bramlet 2008-4-15 4178 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Hicks Canyon, 301 m east of Haul Road & 1.4 km north of Bee Canyon access road 206 Comment
  CAS-BOT-BC355768  Osmadenia tenella G. D. Carr 1971-7-14 585 Orange 2.5 mi NE of San Juan Capistrano on Hwy 74 69 Comment
  UCSB48382  Osmadenia tenella Roberts, Jr., Fred 1982-5-22 Orange Laguna Niguel; Niguel Hill, near end of Pacific Island Road, 1.6 km. ENE Aliso Peak 295 Comment
  SD255070  Osmorhiza brachypoda R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49790 Orange Santa Ana Mountains: Trabuco Canyon. Comment
  UCSC001473  Osmorhiza brachypoda Peter Kamb 1948-6-19 1087 Orange Holy Jim Canyon, Santa Ana Mts 610 Comment
  UC484249  Oxalis albicans subsp. californica C. B. Wolf 1931-3-6 1858 Orange 1.5 mi below Trabaco Camp (Trabaco Canyon); Santa Ana Mtns, W slope 548 Comment
  UCR103787  Oxalis californica Scott D. White 1997-2-19 4698 A Orange Santa Ana Mtns, above Modjeska Canyon; proposed water tank site 488 Comment
  UCSB52920  Oxalis californica Roberts, Fred 1983-3-10 Orange Dana Point Headlands: just south of Pacific Coast Hwy, 0.5km northwest Dana Point Harbor; 0.5km WSW Richard Henry Dana School 85 Comment
  RSA651768  Oxalis corniculata Jack D. Ingwersen 1962-6-2 s.n. Orange Anaheim Comment
  RSA7752  Oxalis pes-caprae E. R. Johnson 1932-07 s.n. Orange Edge of orange grove along river bottom, Rancho Santa Ana Comment
  CAS-BOT-BC121213  Paeonia californica C. B. Wolf 1936-6-17 7949 Orange Santa Ana Mtns, along Ortega Hwy, 6/10 mi. below San Juan Hot Springs. 182 Comment
  RSA2087  Paeonia californica Carl B. Wolf 1931-3-6 1842 Orange Trabuco canyon, 1/2 mile above Trabuco Oaks, west slope of Santa Ana Mountains. 457 Comment
  RSA303  Paeonia californica J. T. Howell 1927-6-6 50 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  RSA797013  Pallenis maritima R. E. Riefner Jr. 2011-6-25 11 -74 Orange City of Laguna Beach, Moss Point, vicinity of Ocean Way at Ruby St. 2 Comment
  RSA797015  Pallenis maritima R. E. Riefner Jr. 2010-1-2 10 -3 Orange City of Laguna Beach, Moss Point, vicinity of Ocean Way at Ruby St. 2 Comment
  UC2014867  Pallenis maritima R. E. Riefner Jr. 2012-5-25 12 -393 Orange City of Dana Point, rocky shore between Mussel Cove and Salt Creek Beach Comment
  RSA753165  Parietaria floridana D. E. Bramlet 2008-5-15 4272 A Orange Upper Borrego Cyn. 152m east of the access road and 1.7km west of Santiago Cyn Road 450 Comment
  RSA5927  Parietaria hespera var. hespera Carl B. Wolf 1932-7-2 3826 Orange Carbon Canyon, 1/8 mile below La Vida Springs 213 Comment
  UCR222662  Parietaria judaica R. E. Riefner Jr. 2006-5-21 06- 199 Orange South Coast, city of Huntington Beach, Beach Blvd. at MacDonald Ave. 8 Comment
  IRVC19396  Parkinsonia aculeata R. L. Allen 1983-2-12 A624 Orange Fullerton; Hillcrest Park, slope bordering E Valley View Drive. Southern Coastal Comment
  UCR230235  Parkinsonia aculeata Dick Newell, Don Millar 2011-3-22 090 Orange Peninsular Range; Santa Ana Mtns., Santiago Canyon Road, 1.2 miles east of 261 Toll Road 286 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
  RSA0026252  Parthenocissus vitacea Fred M. Roberts 2013-6-12 7798 Orange Peninsular Ranges: Santa Ana Mtns: Lower Silverado Canyon along Silverado Creek on north side of Silverado Canyon Road, 0.6 kilometers ENE Silverado School and 1.4 kilometers up stream Black Star Road Crossing. 320 Comment
  CAS-BOT-BC412827  Paspalum distichum R. F. Thorne; E. W. Lathrop; W. Wisura 1977-7-8 49568 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74) Comment
  RSA765876  Paspalum distichum R. E. Riefner Jr. 2005-7-9 05 -544 Orange City of Mission Viejo, Oso Creek, ca. 0.5 mi N of Paseo De Colinas on Camino Capistrano. 86 Comment
  UC455151  Paspalum distichum I. J. Condit 1908-7-21 Orange Los Alamitos Comment
Read comments Nov 20 2010
  UCR137451  Paspalum distichum Scott D. White, Brian Leatherman 1997-6-12 5333 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
  RSA765882  Paspalum pubiflorum R. E. Riefner Jr. 2007-12-2 07 -503 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
  RSA0050323  Paspalum vaginatum R. E. Riefner Jr. 2012-10-21 12 -523 Orange City of Newport Beach, south of Poppy Street/Ocean Blvd, creek at base of stairs, Little Corona Beach. 7 Comment
  RSA733052  Paspalum vaginatum R. E. Riefner 2003-10-14 03 -455 Orange City of San Juan Capistrano, Trabuco Creek, N side of Del Obispo St. at paseo Adelento St. 27 Comment
  RSA733141  Paspalum vaginatum R. E. Riefner 2007-10-17 7 -437 Orange City of Dana Point, Doheny State Beach, E side of San Juan Creek Lagoon. 4 Comment
  SBBG133655  Paspalum vaginatum R. E. Riefner Jr. 2008-8-31 08 -267 Orange tidal portion of San Diego Crk, immediately E of Hwy 73 overpass; Irvine 0 Comment
  UCR246467  Paspalum vaginatum R. E. Riefner Jr. 2012-10-21 12- 523 Orange South Coast, city of Newport Beach, south of Poppy Street/Ocean Blvd, creek at base of stairs, Little Corona Beach 7 Comment
  RSA590954  Pectocarya linearis subsp. ferocula Fred M. Roberts, Cathy Novak, D. Bontrager 1991-4-18 4771 Orange Santa Ana Mtns, 0.7km N jct Santiago Canyon Road and Live Oak Canyon Road, 7.7km WSW Modjeska Peak. 411 Comment
  RSA548878  Pedicularis densiflora Bernard Jaroslow 1990-4-25 B- 36 Orange Sitton Peak Truck Trail: Trailhead 0.3 mile W of ranger station near hot springs, on Ortega Highway (SR 74) Comment
  CDA25877  Pelargonium Mark A. Elvin 2005-5-14 4313 Orange Southern Coastal; UCI Arboretum Comment
  UCR218614  Pelargonium X domesticum Robert DeRuff 2009-1 547 B Orange South Coast, Upper Newport Bay, below intersection of Back Bay Dr. and East Bluff Dr. 12 Comment
  CDA25915  Pelargonium grossularioides Mark A. Elvin 2005-5-14 4314 Orange Southern Coastal; UCI Arboretum Comment
  UCR159812  Pelargonium grossularioides Mark A. Elvin 2005-5-14 4314 Orange Southern Coastal, UCI Arboretum 15 Comment
  CAS-BOT-BC67762  Pellaea andromedifolia Ira L. Wiggins 1966-2-4 20420 Orange Among rocks on floor of Trabuco Cnayon, about 1/2 mile above canyon mouth. Comment
  RSA124717  Pellaea andromedifolia var. andromedifolia E. K. Balls, Percy C. Everett 1957-11-25 22840 Orange Upper Trabuco Canyon, 2.2 mi. ne. from entrance to Holy Jim Canyon, 990 Comment
  RSA1444  Pellaea andromedifolia var. andromedifolia J. T. Howell 1929-2-6 1221 Orange Claymine Canyon, Santa Ana Mountains 213 Comment
  RSA184141  Pellaea andromedifolia var. andromedifolia I. L. Wiggins 1966-2-4 20420 Orange Trabuco Canyon, about 1/2 mi. above canyon mouth Comment
  CAS-BOT-BC71393  Pellaea mucronata Carl B. Wolf 1933-8-24 5396 Orange Santa Ana Mts., summit of Santiago Pk. 1731 Comment
  POM17853  Pellaea mucronata var. mucronata P. A. Munz 1923-6-14 7065 Orange Glen Ivy Trail to Santiago Peak, Santa Ana Mountains 1127 Comment
Read comments Apr 1 2013
  IRVC29810  Pennisetum setaceum Laura D. Lyons, Mark A. Elvin 2006-9-23 424 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
  UCR191241  Pennisetum setaceum A. C. Sanders 2008-4-29 35138 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
  POM296908B  Penstemon centranthifolius Lyman D. Benson 1946-4-27 12050 Orange Corona Del Mar; Drainage area: Pacific Ocean. 15 Comment
  RSA33780  Penstemon centranthifolius N. C. Cooper 1944-6-4 1351 Orange San Juan Canyon, lower camp ground. 457 Comment
  RSA797600  Penstemon heterophyllus subsp. australis Robert F. Thorne 1977-11-21 49997 Orange Santa Ana Mountains: tributary canyon to San Juan Canyon about 2 miles above San Juan Fire Station Comment
  RSA407935  Penstemon heterophyllus var. australis N. C. Cooper 1944-6-4 1337 Orange San Juan Canyon. 305 Comment
  CAS-BOT-BC330343  Pentachaeta aurea P. C. Everett 1935-4-22 6463 Orange Santa Ana Canyon, 0.25 mi W of Horseshoe Bend 121 Comment
  POM7598  Pentachaeta aurea P. A. Munz, R. D. Harwood 1920-4-24 3783 Orange Santa Ana Mountains, Sierra [Freemont] Canyon 366 Comment
Read comments Sep 17 2011
  HSC1086  Pentagramma triangularis J. W. Johnson 1961-3-29 Orange Newport Beach, on S side of upper Newport Bay Comment
  RSA0059338  Pentagramma triangularis L. M. Booth 1932-5-19 1066 Orange Newport Bay Comment
  LA210786  Pentagramma triangularis subsp. viscosa Lawrence L. Kiefer; 1963-11-17 1099 Orange Laguna Canyon, Laguna Beach, near road to Irvine, just back of the city. 60 Comment
  POM184311  Perideridia gairdneri subsp. gairdneri L. M. Booth 1932-8-5 1354 Orange Lomita Land Co. Comment
  SEINET10974097  Persea George A. Zentmyer 1990-11-1 Zentmyer 1 -B Orange University of California South Coast Field Station, near Irvine (Tustin7.5'Q) Comment
  SBBG61477  Persicaria amphibia J. Ewan 1931-7-31 Orange Westfall near Huntington Beach Comment
  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
  RSA689  Petunia parviflora J. T. Howell 1927-7-18 426 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  UC537279  Petunia parviflora L. M. Booth 1932-12-16 1378 Orange near coast Santa Ana River Comment
  RSA539386  Phacelia brachyloba Fred M. Roberts, Carol A. Roberts 1988-6-2 4043 Orange Santa Ana Mtns: Maple Spirngs Truck Trail, 8.7km above Silverado Gate, 2.4km N Modjeska Peak. 1155 Comment
  POM49687  Phacelia cicutaria var. hispida L. R. Abrams 1901-06 1820 Orange Santiago Peak trail. Comment
  UCR192455  Phacelia cicutaria var. hispida A. C. Sanders, Fred M. Roberts 2008-3-25 34575 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
  RSA562740  Phacelia cicutaria var. hispida Steve Boyd, Tim Ross 1992-5-20 7456 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of wilderness in Lucas Canyon along a new section of trail heading up major side canyon northward to Sitton Peak Road (7S09), 305 Comment
  JEPS2402  Phacelia distans Alice King June 1908 Orange Santa Ana Comment
  POM289796  Phacelia distans Lyman Benson 1932-3-26 3197 Orange Dana Point. 61 Comment
  RSA606  Phacelia distans J. T. Howell 1928-3-18 892 Orange Rancho Santa Ana, Botanic Garden. 152 Comment
  UCR224037  Phacelia distans Justin M. Wood 2010-3-31 1445 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
  RSA0041601  Phacelia distans Albert J. Perkins 1913-4-22 s.n. Orange Trabuco Canyon. Comment
  RSA699778  Phacelia minor Keith E. Hoffmaster 1935-4-14 s.n. Orange Live Oak can. Comment
  UCR191353  Phacelia minor A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34640 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
  OBI13752  Phacelia minor Barrett Anderson 1975-5-10 576 Orange In Cleveland Natl Forest 244 Comment
  RSA603111  Phacelia minor R. S. Woglum 1932-4-16 s.n. Orange Trabuco Canyon, Santa Ana Mountains. Cleveland National Forest. Comment
  SEINET6971803  Phacelia minor W. P. Vestal, A. G. Vestal 1955-3-24 3458 Orange Trabuco Canyon, about 5 miles east of El Toro. 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
  RSA20369  Phacelia parryi Percy C. Everett 1938-4-11 9400 Orange Rancho Santa Ana, Santa Ana canyon, N of W end of Walnut orchard. 122 Comment
  RSA428155  Phacelia parryi M. B. Dunkle 1938-3-26 5231 Orange Aliso Canyon. 6 Comment
  UCSB48216  Phacelia ramosissima Roberts, Dar; Roberts, Jr., Fred 1983-5-3 Orange Santa Ana Mtns.; Hot Springs Canyon, 0.5 km. by road N of Cal. Rte. 74 (San Juan Guard Sta.) 238 Comment
  POM3701  Phacelia ramosissima var. austrolitoralis D. L. Crawford s.n. Orange Arch Beach. Laguna Beach Region. Comment
  RSA0003878  Phacelia ramosissima var. austrolitoralis J. T. Howell 1927-7-17 421 Orange Near Laguna Beach Comment
  CAS-BOT-BC145004  Phacelia ramosissima var. latifolia Carl B. Wolf 1933-8-24 5389 Orange Santa Ana Mts. Summit of Santiago Pk. 1731 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
  CDA22570  Phalaris aquatica J. B. Anderson 1966-5-15 642 Orange Upper Newport Bay: Along Irving Avenue at 23rd Street. 0 Comment
  IRVC1785  Phalaris aquatica J. B. Anderson 1966-5-15 642 Orange Upper Newport Bay: along Irvine Avenue at 23rd Street. Southern Coastal Comment
  IRVC22741  Phalaris aquatica Fred M. Roberts 1985-5-15 1802 Orange El Toro Canyon, El Toro Rd., 1.1km NE jct. Laguna Canyon Rd., Aliso Viejo 88 Comment
  UCR150384  Phalaris lemmonii D. E. Bramlet 1999-5-16 2764 Orange South Coast, Fairview Park, City of Costa Mesa. Some 336 m N of the intersection of Wilson and Canyon Dr. and 152 m west of the Canyon School, on a mesa overlooking the Santa Ana River 43 Comment
  UCR102440  Phalaris minor Scott D. White 1997-3-26 4813 Orange Univ. of Calif. Irvine Campus, east of main campus at site of proposed student recreation center, east of main campus, between California Avenue and Culver Drive. 40 Comment
  UCR170307  Phalaris minor J. B. Anderson 1966-4-18 597 Orange South Coast, MacArthur Blvd. near Red Hill Road [between Santa Ana and Irvine, NE of John Wayne Airport] 9 Comment
  RSA708230  Phalaris paradoxa Fred M. Roberts, Robert L. Allen, Chris Barnhill, Carol A. Roberts 2005-4-10 6163 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
  RSA708721  Phoenix dactylifera Fred M. Roberts, Robert L. Allen, Chris Barnhill 2004-8-21 6115 Orange Caspers Wilderness Park, San Juan Cyn., Old San Juan Hot Springs, c.a. 0.4km SW San Juan Ranger Station, north of SR 74. 214 Comment
  HSC13745  Pholistoma auritum J. W. Johnson 1961-4-2 Orange Newport Beach, along Upper Newport Bay. Comment
  LA205660  Pholistoma auritum var. auritum A. M. Johnson; 1934-4-15 4418 Orange Laguna Beach Comment
  RSA683070  Pholistoma auritum var. auritum Fred M. Roberts, D. E. Bramlet 2003-3-13 5599 Orange Donna O Neill Land Conservancy: Flagpole Meadow, upper Shady Cyn. W of Cristianitos Canyon, 1,500m NW Sycamore Gate and 1,220m W Cristianitos Rd. 173 Comment
  CAS-BOT-BC413831  Phoradendron leucarpum subsp. macrophyllum Andrew Townesmith; Karen M. Meyer; Tracy Scott 2007-3-11 675 Orange Cleveland National Forest. Off Long Canyon Road, NW of intersection with Route 74 752 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
  POM3998  Phyla lanceolata D. L. Crawford 1916-7-26 s.n. Orange Laguna Canyon Comment
  UC25108  Phyla lanceolata A. J. McClatchie 1896-6-20 Orange Westminster Comment
  RSA683935  Phyllospadix scouleri E. Yale Dawson 1957-2-24 16174 Orange Just nOrth of Dana Point, Orange County Comment
  RSA683955  Phyllospadix scouleri E. Yale Dawson 1957-11-21 17886 Orange Laguana Beach, Orange County Comment
  RSA384024  Phyllospadix torreyi Gigas 1832-6-26 15492 Orange Laguna Beach. Comment
  RSA682950  Phyllospadix torreyi E. Yale Dawson 1957-11-23 17817 Orange Corona del Mar, Orange, Co. Comment
  RSA684036  Phyllospadix torreyi E. Yale Dawson 1958-11-10 19789 Orange First rocky spit N of Dana Point. Station no 22. 270-300 ft from shore base point. 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
  UC1974774  Phyllospadix torreyi Alison Kendall 2003-5-20 Orange Crystal Cove Comment
  POM1013  Phyllospadix torreyi Daniel J. Crawford 1916-7-29 s.n. Orange Abalone Point. Comment
  RSA23579  Physalis acutifolia E. R. Johnson 1939-9-8 9537 Orange Santa Ana Canyon, Rancho Santa Ana., in #2 Valencia Orange Grove. 122 Comment
  RSA38696  Physalis cinerascens E. L. Paddock 1943-9-23 s.n. Orange Kraemer Ranch, east of Yorba Linda, Comment
Read comments Apr 23 2011
  RSA79903  Physalis philadelphica F. W. Peirson 1924-10-19 5239 Orange Wintersberg 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
  UCSC000843  Picris echioides I. J. Condit 2008-7-25 s.n. Orange Huntington Beach Comment
  CAS-BOT-BC76994  Pilularia americana H. H. Tracy 1935-4-10 s.n. Orange North of Costa Mesa Comment
  SD247530  Pinus attenuata R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49694 Orange Northern Santa Aana Mountains: Sierra Peak. Comment
  RSA731002  Pinus coulteri Fred M. Roberts, B. Allen, D. Olsen 2007-1-19 6504 Orange Beek s Place along Main Divide Rd., 4.1 km NW Pleasant Peak. 852 Comment
  UC1134076  Pinus coulteri H. E. Norton 1931-3-3 33 Orange Santa Ana Mts. Corona Quadrangle Comment
  UCSB47634  Pinus coulteri Roberts, Fred 1980-5-3 Orange On west side of road; Main Divide Truck Trail, 0.6 km. southeast of Trabuco Peak, Santa Ana Mtns. 1259 Comment
Read comments Nov 8 2007
  CDA38703  Pinus halepensis D. G. Kelch 2006-12-9 6 .553 Orange Newport Bay, Back Bay Dr. betweeen marsh and steep bluff. Comment
  UCR200955  Pinus halepensis A. C. Sanders, Fred M. Roberts 2008-9-18 36082 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge 330 Comment
  RSA539395  Pinus radiata Fred M. Roberts, Carol A. Roberts 1988-11-3 4163 Orange Santa Ana Mtns.: Upper Trabuco Canyon near Main Divide Truck Trail, 1.3km NE Los Pinos Peak 1268 Comment
  UCR231188  Pinus sabiniana A. C. Sanders, T. B. Salvato, Kent Beaman 2011-11-3 39944 Orange Peninsular Range; Santa Ana Mountains, Beek's Place on Main Divide Truck Trail 863 Comment
  MACF017433  Pinus taeda Trudy R. Ericson 1974-6-13 167 Orange Little Cypress Road about 1 mi. south of Little Cypress Bayou Comment
  RSA131978  Piperia cooperi Gale Sphon 1959-5-2 324 Orange Between Upper and Lower San Juan Camps, Cleveland National Forest. Comment
  UC1543039  Piperia cooperi Donald G. Nelson 1935-4-6 245 Orange about 4 mi from San Juan Canyon summit (canyon 200-300 ft below main highway, e of San Juan Capistrano) Comment
  RSA759144  Piperia elongata Robt. Allen, Reginald Durant 2008-7-19 s.n. Orange Silverado Canyon, Maple Springs Truck Trail, circa 2.3 air miles E of USFS gate. Near small bridge over creek at transistion from asphalt to unpaved road. 904 Comment
  RSA725540  Piptatherum miliaceum Fred M. Roberts, Robert L. Allen 2007-9-28 6606 Orange Santa Ana Mtns.: Silverado Cyn., along Silverado Cyn. Rd. at eastern edge of town of Silverado. 347 Comment
  UCSB48027  Piptatherum miliaceum Roberts, Fred 1980-7-7 Orange Santa Ana Mts.; San Juan Canyon, Calif. Rte. 74, 2.2 km. ENE San Juan Guard Station; 0.6 km. W Bench Mark 1100 305 Comment
  CAS-BOT-BC254389  Piptatherum miliaceum Ira L. Wiggins 1965-9-26 20256 Orange Along N margin of La Vida property, above the hot springs Comment
  RSA450840  Piptatherum miliaceum J. Anderson 1966-6-24 680 Orange San Joaquin Hills; Bonita Canyon Reservoir in vicinity of Culver Rd. Comment
  CAS-BOT-BC354027  Plagiobothrys acanthocarpus R. E. Riefner, Jr. 2013-3-17 13 -44 Orange City of Irvine, Jeffrey Trail, vicinity of Shady Canyon Dr. at Fossil Rd. 47 Comment
  UC881311  Plagiobothrys acanthocarpus Alice Eastwood and John Thomas Howell 1937-4-24 3934 Orange Dana Point Comment
  UCR103154  Plagiobothrys acanthocarpus Scott D. White 1997-3-26 4819 Orange Univ. of Calif. Irvine Campus, east of main campus at site of proposed student recreation center, east of main campus, between California Avenue and Culver Drive. 40 Comment
  UCR171016  Plagiobothrys acanthocarpus R. E. Riefner Jr. 2006-4-12 06- 116 Orange Irvine, north foot of San Joaquin Hills, vicinity of Quail Hill, SSW of 405 Freeway and Shady Canyon Rd. 46 Comment
  RSA599652  Plagiobothrys acanthocarpus Fred M. Roberts 1995-4-21 4933 Orange Irvine: San Joaquin Hills, Quail Hill area near end of San Canyon Road, 2.5 km ENE French Hill. 52 Comment
  UCSB56510  Plagiobothrys acanthocarpus Marsh, G. 1978-3-17 Orange U.C. Irvine Ecological Preserve; near eastern fence line, drainage separating Hills #1 and #2 Comment
  RSA733873  Plagiobothrys collinus A. C. Sanders, Fred M. Roberts 2008-4-8 34742 Orange Peninsular Range: Lomas de Santiago, Loma Ridge, head of Hicks Canyon. S of Santiago Reservoir. 351 Comment
  UCR192474  Plagiobothrys collinus A. C. Sanders, Fred M. Roberts 2008-3-25 34542 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  RSA368943  Plagiobothrys collinus var. californicus Albert J. Perkins 1914-3-9 s.n. Orange Laguna Beach Comment
  UC1212094  Plagiobothrys nothofulvus D. Bates 1960-4-2 2308 Orange Route 74 e San Juan Capistrano Comment
  HSC3777  Plagiobothrys tenellus J. W. Johnson 1961-3-29 Orange N slope on S side of Upper Newport Beach Comment
  RSA695839  Plagiobothrys tenellus J. R. Bruff s.n. Orange Modjeska s Home Comment
  RSA666092  Planodes virginica Fred M. Roberts, Michelle Lee, Kristen Szabo 2001-4-13 5430 Orange Rancho Mission Viejo: Chiquita Ridge, 0.3km WNW Median Rancho Survey Marker. PCR Vernal Pool 4. 226 Comment
  SD181425  Plantago coronopus Valerie Soza, Kevin Clark, LeRoy Gross, Will Miller, 2001-4-4 1121 a Orange Anaheim Bay: Seal Beach U.S. Naval Weapons Station, southwestern edge of Seal Beach National Wildlife Refuge. 3 Comment
  RSA681952  Plantago erecta Fred M. Roberts, D. E. Bramlet 2003-3-7 5564 Orange Donna O'Neill Land Conservancy; West slopes of Christianitos Canyon, Middle Ridge Trail, 0.1km NW Gato Gate. 123 Comment
  UC484111  Plantago erecta E. R. Johnson 1929-4-11 Orange Sierra Peak Trail Santa Ana Mts. Comment
  RSA762  Plantago hirtella var. galeottiana J. T. Howell 1927-7-27 493 Orange Santa Ana River, Rancho Santa Ana. 152 Comment
Read comments Aug 19 2011
  CLARK-A1528-3428  Plantago indica John C. Roos 1957-7-29 6657 Orange Newport Beach Comment
  RSA5949  Plantago major Carl B. Wolf 1932-7-7 3861 Orange Opposite the Bryant Ranch: on N side of Bryant Avenue, 0.5 mile east of Los Alamitos Boulevard near Los Alamitos. 8 Comment
Read comments Apr 8 2014
  RSA791464  Plantago major Keith E. Hoffmaster 1927-5-22 955 Orange Near Santa Ana. CP3. Comment
  RSA68988  Plantago ovata var. insularis F. W. Peirson 1924-5-31 4668 Orange 5 miles southeast of Laguna Beach. Comment
  RSA424278  Plantago virginica Albert J. Perkins 1920-6-15 s.n. Orange Santa Ana Comment
  RSA0126618  Platanus X acerifolia Fred M. Roberts 2012-4-24 7495 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
  UCR239625  Platanus acerifolia Fred M. Roberts 2012-4-24 7495 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
  CAS-BOT-BC175661  Platanus racemosa A. C. Sanders; Fred M. Roberts 2008-7-3 35700 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, along Windy Ridge Rd. at wash crossing, 0.95 mi. SE of Walnut Canyon Reservoir 242 Comment
  UCR237925  Platanus racemosa Mark A. Elvin 2003-2-2 2278 Orange South Coast, San Joaquin Marsh, UCI campus SSE of intersection of Jamboree Blvd. and Campus Dr. 2 Comment
  SEINET7779659  Platanus racemosa Unknown 1966-8-22 2390 Orange O'Neill State Park, about 20 miles southeast of Anaheim Comment
  SEINET12102790  Platystemon californicus Unknown 1884-1 s.n. Orange Anaheim Comment
  CHSC106005  Plecostachys serpyllifolia R. E. Riefner Jr. 2009-7-18 09 -151 Orange City of Dana Point, beach near Salt Creek, vicinity of Ritz Carlton Resort. UTM: 11S 0432734E 3704750N. 2 Comment
  RSA0025114  Plecostachys serpyllifolia R. E. Riefner Jr. 2008-7-9 08 -220 Orange City of Laguna Beach, bluff area W. of West St. and Pacific Coast Highway. 5 Comment
  SD218284  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
  UCR247516  Plecostachys serpyllifolia R. E. Riefner Jr. 2008-7-9 08- 220 Orange South Coast, Laguna Beach, bluff area west of West St and Pacific Coast Hwy 11 Comment
  RSA765879  Plecostachys serpyllifolia R. E. Riefner Jr. 2005-9-9 05 -654 Orange City of Lake Forest, Aliso Creek, S side of Portola Pkwy. and W of El Toro Rd. 225 Comment
  RSA472110  Pluchea odorata Albert J. Perkins 1912-8-22 s.n. Orange Aliso Canyon, near Thursteria Ranch Comment
  RSA472126  Pluchea sericea Albert J. Perkins 1920-6-12 s.n. Orange Near Serra. Comment
Read comments Nov 1 2013
  SD237347  Pluchea sericea Dick Newell, Don Millar 2010-4-27 20 Orange Peninsular Range; Santa Ana Mtns. Foothills: Lomas de Santiago, Agua Chinon wash 1/4 mile north of Hwy 241 toll road. 226 Comment
  RSA716662  Plumbago auriculata Fred M. Roberts, Amber Oneal 2004-8-18 6095 Orange San Juan Capistrno: Ortega Ranch Business Center site, between Rancho Viejo Rd. and I-5 freeway adjacent to Horno Creek; 0.6km NE Mission San Juan Capistrano. 54 Comment
  UCR99859  Poa annua Scott D. White 1993-3-5 1129 Orange Tustin. Marine Air Corps Air Station: SE of Red Hill Ave and NE of Barranca 15 Comment
  UCSB47947  Poa fendleriana Roberts, Dar 1980-5-3 Orange .6 km East by S.E. of Los Pinos Spring, on Main Divide Truck Trail 1000 Comment
  UCR138440  Poa secunda R. E. Riefner Jr. 2000-4-15 20- 379 Orange Santa Ana Mtns., North Ranch Policy Plan Area Main Divide Road; south of Gypsum Canyon and south of Windy Ridge 518 Comment
  SD152888  Polycarpon tetraphyllum Steve Boyd, Tim Ross 1992-5-19 7451 Orange Southern Santa Ana Mountains, western edge of the wilderness in Lucas Canyon at the Lucas Canyon Trail crossing. 320 Comment
  SEINET3086485 Image available Polycarpon tetraphyllum J. Harry Lehr 1975-5-10 1556 Orange Santa Ana Street W. of State College Blvd. Anaheim. Comment
  UCR146882  Polycarpon tetraphyllum Kathleen Stockwell 1999-5-30 s.n. Orange South Coast, north of Cristianitos Road, San Clemente 61 Comment
  RSA450863  Polygala cornuta var. fishiae Gordon Marsh, K. G. Marsh 1977-11-21 s.n. Orange Along N side of Ortega Hwy, 0.6 miles W of Lower San Juan Picnic ground. Comment
  RSA460143  Polygala cornuta var. fishiae Theodore Payne 1917-1 3122 Orange Santiago Canyon. Comment
  RSA698416  Polygala cornuta var. fishiae Unspecified 1934-05 s.n. Orange Ladd Canyon. Comment
  SBBG128684  Polygala cornuta var. fishiae R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49615 Orange Ortega Hwy (74) ca. 2.5 mi above San Juan Fire Station, lateral ravine tributary to San Juan Cyn; Santa Ana Mtns Comment
  RSA708537  Polygonum arenastrum Fred M. Roberts, Robert L. Allen, Chris Barnhill 2004-8-21 6102 Orange Caspers Wilderness Park, Hot Springs Cyn., Hot Springs Trail, c.a. 0.16km WSW San Juan Ranger Station, north of SR 74. 212 Comment
  CAS-BOT-BC414041  Polygonum aviculare subsp. aviculare Ira L. Wiggins 1966-3-31 20570 Orange Along shoulder of Brea Olinda Boulevard near Carolina Avenue, just outside the city limits of Fullerton Comment
  CDA21557  Polygonum lapathifolium A. Thomas, Mark A. Elvin 2006-9-23 609231 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
  RSA683226  Polygonum lapathifolium Scott D. White, Matt Carlton 2003-11-20 9869 Orange Santa Ana Mountain foothills; San Juan Creek in San Juan Capistrano; (San Juan Capistrano). 24 Comment
  UC729856  Polygonum lapathifolium Carl B. Wolf 1932-7-7 3835 Orange Bixby Ave. 100 ft w Hansen Road; Bryant Ranch Comment
  RSA542467  Polygonum persicaria Fred M. Roberts, G. A. Marsh 1987-8-31 3593 Orange Santa Ana River: adjacent to Santa Ana at Mc Fadden crossing. 19 Comment
  IRVC19535  Polypodium californicum R. L. Allen 1977-2-13 s.n. Orange Viejo Canyon, off Hwy 74, 15.5mi NE San Juan Capistrano; steep, rocky seep above San Juan Creek. Santa Ana Mountains Comment
  IRVC21313  Polypodium californicum Fred M. Roberts 1983-12-13 1155 Orange Laguna Beach: west flank of Temple Hill, Park Canyon, Park Ave., 1.3km NE of Thurston School; 1.7km SE Bench Mark 104. Southern Coastal 195 Comment
  UCSB62527  Polypodium californicum Kiefer, Lawrence 1963-11-17 Orange Arch Rock near Corona del Mar 30 Comment
  RSA734973  Polypogon interruptus A. C. Sanders, Fred M. Roberts 2008-6-17 35467 Orange Lomas de Santiago, Agustine staging area near Limestone Canyon Rd. gate at Santiago Cyn Rd. 260 Comment
  IRVC14816  Polypogon monspeliensis A. S. Boughey 1968-7-9 399 Orange Upper Santiago Canyon. Santa Ana Mountains Comment
  RSA0058185  Polypogon monspeliensis Fred M. Roberts 2014-4-21 7871 Orange South Coast: San Joaquin Hills: Upper Laguna Lake 1 (upper Laguna Lake), north basin. 113 Comment
  UCD91234  Polypogon monspeliensis A. A. Beetle 1942-4-19 3101 Orange Rt. 101. 5 miles south of Laguna Beach. Comment
  CAS-BOT-BC237507  Polypogon viridis Le Roy Abrams 1901-6-12 1760 Orange Santa Ana River Comment
  CAS-BOT-BC237508  Polypogon viridis Ira L. Wiggins 1965-11-6 20337 Orange Near railway right of way, W side of Atwood 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
  UCSB48202  Polypogon viridis Roberts, Fred 1981-6-26 Orange Santa Ana Mts., San Juan Canyon, 0.1 km. N Lower San Juan Picnic Ground 390 Comment
Read comments Jan 25 2021
  UCR119292  Populus balsamifera subsp. trichocarpa R. E. Riefner Jr. 2000-3-26 20- 151 Orange Peninsular Range, Santa Ana Mountains: North Ranch Policy Plan Area, Fremont Canyon, north of major stream fork along west channel drainage 335 Comment
  UCR171019  Populus balsamifera subsp. trichocarpa R. E. Riefner Jr. 2006-4-8 06- 111 Orange South Coast, San Juan Capistrano (city), San Juan Creek at La Novia Ave. 22 Comment
  RSA542356  Populus fremontii Fred M. Roberts Jr. 1987-5-12 3436 Orange Santa Ana River: Horseshoe Bend, 3.9km S San Juan Hill; 1.0km ENE Wier Canyon Road bridge. 104 Comment
  UCSB48128  Populus fremontii subsp. fremontii Roberts, Fred 1981-4-12 Orange Santa Ana Mountains: San Juan Canyon, Hwy 74, 1.3km by road E San Juan Guard Station; 0.9km SE Juan Rancho Survey Mark 89 Comment
  LA208544  Populus trichocarpa W. E. Pequegnat; 1937-9-6 sn Orange Santa Ana Mountains, Ortega Rd Comment
  RSA133  Populus trichocarpa J. T. Howell 1927-7-21 451 Orange Santa Ana River, Rancho Santa Ana. 152 Comment
  CLARK-A1528-2064  Porophyllum gracile John C. Roos 1965-6-16 Orange Dana Point Comment
  JEPS34991  Porophyllum gracile Ethel Rockwell Orange Santa Ana Mts., Trabuco Canyon Comment
  SD144030  Porophyllum gracile Scott D. White 1997-3-28 4841 Orange Santa Ana Mountains, above Modjeska Canyon. 424 Comment
  RSA1307  Portulaca oleracea J. T. Howell 1928-9-17 s.n. Orange Rancho Santa Ana 152 Comment
  POM1024  Potamogeton nodosus I. M. Johnston 1918-9-3 2144 Orange Lakes in Laguna Canyon, Sa Joaquin Hills 107 Comment
  UCR193806  Potentilla glandulosa A. C. Sanders, Fred M. Roberts 2008-7-16 35828 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, along road in lower Limestone Canyon, near junction with Harding Truck Trail 290 Comment
  SD233356  Prunus avium R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49828 Orange Santa Ana Mountains; Trabuco Canyon, ca. 8 km east of Trabuco Oaks. Deserted orchard. Comment
  RSA5316  Prunus ilicifolia B. D. Stark 1933-1-5 4499 Orange 2 mi. so. of summit of skyline Drive on road along ridge to Santiago Peak. Santa Ana Mts. 1067 Comment
  CAS-BOT-BC356380  Pseudognaphalium beneolens Frank W. Peirson 1923-9-7 4042 Orange Santiago Peak, Holy Jim Canon [Canyon] trail Comment
  POM358761  Pseudognaphalium biolettii M. B. Dunkle 1933-4-9 3282 Orange Dana Point. Comment
  UCR106310  Pseudognaphalium biolettii B. G. Pitzer, M. Georgiady 1997-4-5 3096 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
  RSA0126623  Pseudognaphalium californicum Fred M. Roberts 2012-4-24 7506 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
  OBI77910  Pseudognaphalium leucocephalum Robert Lee Allen 2012-8-11 s.n. Orange Santa Ana Mts, Caspers Wilderness Park, Bell Cyn. UTM 11S 3712054.00mN, 447741.00 mE 127 Comment
  RSA741722  Pseudognaphalium leucocephalum R. E. Riefner 2008-8-5 08 -259 Orange Irvine Ranch Reserve, Fremont Canyon Conservation Easement, lower Fremont Canyon, main drainage. 223 Comment
  CAS-BOT-BC356984  Pseudognaphalium luteoalbum Scott D. White; Brian Leatherman 1997-6-12 5313 Orange Santa Ana Mtn. foothills. East of San Juan Capistrano: San Juan Creek between Hwy 74 bridge and Mission Vieja site, i.e., ca. 2 to 4 mi E of I-15 / Hwy 74 jtn. 75 Comment
  RSA716772  Pseudotsuga macrocarpa Fred M. Roberts, Michelle Balk, Robert Allen, Megan Enright 2004-7-18 6256 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
  UCR114252  Pseudotsuga macrocarpa R. E. Riefner Jr. 2000-8-8 20- 717 Orange Peninsular Range, Santa Ana Mountains, North Ranch Policy Plan Area, NE property, E slope of upper Fremont Canyon, south of Donaldson Ranch and south of powerline/ National Forest boundary 454 Comment
  IRVC14072  Psilotum nudum B. T. Gittins Mar 1967 s.n. Orange California State College at Fullerton; Greenhouse. Southern Coastal Comment
  UC2046880  Psilotum nudum R. E. Riefner Jr. 2015-11-22 15 -453 Orange City of Costa Mesa, E side of Orange County Fairground, Lot #A-5, W of Newport Blvd. and N of Fair Drive. Comment
  POM280432A  Pterostegia drymarioides Lyman Benson 1932-3-26 3196 Orange Dana Point. 61 Comment
  RSA392941  Pterostegia drymarioides Albert J. Perkins 1913-4-27 s.n. Orange Trabuco Canon. Comment
  RSA591804  Pulicaria hispanica P. H. Raven 1961-10-15 16857 Orange Dyke along road to Yorba Linda just north of US Hwy 91 114 Comment
  CAS-BOT-BC362143  Pulicaria paludosa R. L. Pope 1959-8-14 s.n. Orange Ray Miller Property, east of Fullerton, Santa Ana River Canyon Comment
  OBI59561  Pulicaria paludosa T. C. Fuller 1963-10-9 11362 Orange Santa Ana cyn, 0.1 mi S of riverside fwy to Anaheim, ca 2 mi W of the Riverside Co. line Comment
  UC2029950  Pulicaria paludosa Steve Boyd, R. E. Riefner 2000-9-13 10307 Orange SANTA ANA MOUNTAINS: Fremont Canyon, about 1.5 air miles west of Oat [a.k.a. Oak] Flat and 1.5 air miles southeast of Claymont clay mine. Comment
  UCR130487  Pulicaria paludosa R. E. Riefner Jr. 2002-5-4 02- 93 Orange South Coast, Upper Newport Bay, Jamboree Road at Bayview Dr., edge of Newport Beach Q. 21 Comment
  UCR138415  Pulicaria paludosa Scott D. White, P. Bowler 1997-11-20 6021 Orange University of Calif., Irvine campus: east of main campus 61 Comment
  UCR210376  Pulicaria paludosa T. B. Salvato, Billy Deane 2006-10-16 1932 Orange South Coast, Irvine, San Diego Creek flood control channel, between Michelson Drive and the 405 FWY 12 Comment
  IRVC26753  Pulicaria paludosa Mark A. Elvin 2003-8-24 3013 Orange San Joaquin Hills, Irvine, UCI, 100m N of the intersection of Shady Canyon Drive and Bonita Canyon Road. Southern coastal 72 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
  IRVC1322  Quercus agrifolia A. S. Boughey 1965-3-9 4 Orange San Joaquin Hills. Southern Coastal Comment
  RSA5283  Quercus agrifolia Carl B. Wolf, B. D. Stark 1932-12-19 4432 Orange Skyline Drive, Black Star Canyon, 2 miles below summit 610 Comment
  UCR131878  Quercus agrifolia J. Mallory, V. McCoy 1995-7-3 6454- 96 Orange Santa Ana Mountains: Blind Canyon, c. 0.5 mi. east of confluence with Santiago Canyon, on a W-facing slope. north of Irvine Lake 300 Comment
  IRVC20799  Quercus agrifolia var. agrifolia Fred M. Roberts 1982-4-18 522 Orange Hot Springs Canyon; 0.8km SW Falcon Group Camp. Santa Ana Mountains 1005 Comment
  IRVC22517  Quercus agrifolia var. agrifolia Fred M. Roberts 1985-4-30 1677 Orange Laguna Beach: Temple Hill; at margin of "Dripping Springs Canyon"; 0.4km NNE Top of the World School. Southern Coastal 255 Comment
  IRVC23334  Quercus berberidifolia Fred M. Roberts 1981-11-15 452 Orange San Juan Canyon; N-side of Hwy 74; 0.3km SW Lower San Juan Picnic Ground Santa Ana Mountains 423 Comment
  RSA164  Quercus berberidifolia J. T. Howell 1927-6-16 143 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  UCR119315  Quercus berberidifolia R. E. Riefner Jr. 2000-1-18 20- 103 Orange Peninsular Range, Santa Ana Mountains: North Ranch Policy Plan Area, Main Divide Road, top of Gypsum Canyon at Windy Ridge 518 Comment
  UCR119802  Quercus berberidifolia R. E. Riefner Jr. 2000-6-22 20- 572 Orange Santa Ana Mountains, North Ranch Policy Plan Area, NE property, along National Forest boundary, at powerline 756 Comment
  UCR132977  Quercus berberidifolia Adrian Wolf 2000-6-1 467 Orange Santa Ana Mtns., North Ranch Policy Plan Area, West Fremont Canyon 534 Comment
  RSA0041587  Quercus berberidifolia E. R. Johnson 1933-11 5557 Orange Rancho Santa Ana. Comment
  IRVC22666  Quercus chrysolepis Fred M. Roberts 1985-5-9 1727 Orange Santa Ana Mountains: Upper McVicker Canyon, 1.8km NE Los Pinos Peak. Peninsular Ranges 1113 Comment
  IRVC29765  Quercus chrysolepis Barry S. Nerhus, Mark A. Elvin 2006-11-4 6 Orange Huntington Beach, Bolsa Chica Wetlands, SW portion of Reserve beside Pacific Coast Highway. Southern Coastal 0 Comment
  LA46913  Quercus chrysolepis C. B. Wolf; E. R. Johnson 1933-11-3 5528 Orange Santa Ana Mountains, Main Divide Motorway, W side of Modjeska Peak 1371 Comment
  RSA542389  Quercus engelmannii Richard Ericson 1991-6-11 s.n. Orange San Joaquin Hills: upper Coyote Canyon on north signal peak, ca. 0.6 km NW summit, UTM 37 19 000m N, 4 24 200m E alt. 204m 204 Comment
  UCR208055  Quercus engelmannii Fred M. Roberts, D. E. Bramlet 2003-4-10 5645 Orange Coastal Plains & Basins; South Coastal Plain region, Rancho Mission Viejo: Donna O'Neill Land Conservancy, ridge between Cristianitos Cyn. and Segunda Deshecha Canada, 1.51km W Gato Gate and 1.78km NW Edison substation 229 Comment
  CAS-BOT-BC487559  Quercus ilex R. E. Riefner, Jr. 2014-11-21 14 -393 Orange City of Lake Forest, English Canyon, Aliso Creek, S of Cherry Ave., end of 2nd St., Aliso Creek Bikeway 135 Comment
  UCD46641  Quercus kelloggii G. A.; K. G. Marsh 1976-12-15 s.n. Orange Santa Ana Mts: Silverado Truck Trail, 0.2 mi N of Main Divide junction. Comment
  UCR240165  Quercus suber R. E. Riefner Jr. 2012-11-18 12- 555 Orange South Coast, city of Irvine, San Joaquin Wildlife Sanctuary, South Loop Trail, north of San Diego Creek, west of Campus Drive 8 Comment
  UC5679  Quercus wislizeni W. H. Brewer Jan 1861 137 Orange Santa Ana Mountains 914 Comment
  UC5709  Quercus wislizeni W. H. Brewer Jan 1861 137 Orange Santa Ana Mountains Comment
  IRVC24473  Quercus wislizeni var. frutescens Fred M. Roberts, R. L. Allen 1986-2-23 2595 Orange Santa Ana Mountains; W of Main Divide Truck Trail; 2.1km E Los Pinos Peak. Peninsular Ranges 1115 Comment
  RSA220970  Rafinesquia californica E. W. Lathrop 1966-4-18 6178 Orange 4 mi NE of Lake Irvine, Black Star Canyon, Cleveland National Forest, Trabuco District. Comment
  UCR209061  Rafinesquia californica A. C. Sanders, Fred M. Roberts 2008-4-22 35049 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
  RSA4832  Ranunculus californicus James Snow 1932-1 s.n. Orange Bryant Ranch, near Long Beach. Station #1 plant #1 Comment
  RSA734149  Ranunculus californicus Minor Warne 1934-03 s.n. Orange Laguna Canyon Forks Comment
  UCR78041  Ranunculus californicus Scott D. White 1993-4-7 1197 Orange Laguna Mtns., Laguna Canyon, E side of Laguna Canyon Road (Hwy 133), above Hillies Lane. (Thomas Bros. Orange County Map: F-3 on 33A). Comment
  RSA734146  Ranunculus californicus R. H. McArthur 1934-3-3 s.n. Orange Forks of laguna Canyon Comment
  IRVC1140  Raphanus sativus Anonymous 1965-3-15 Orange Dover Rd. Newport Beach Comment
  UCR125475  Rhamnus alaternus Roger E. Reinke 2003-2-18 s.n. Orange South Coast, Newport Back Bay, Big Canyon 30 Comment
  CAS-BOT-BC56033  Rhamnus ilicifolia P. C. Everett 1936-9-19 8269 Orange Santa Ana Mts., Silverado Canyon, in vicinity of Forest Service Gate at base of road 762 Comment
  RSA512408  Rhamnus ilicifolia Fred M. Roberts 1987-3-31 3296 Orange Lomas De Santiago: Lomas Ridge, Upper Serrano Canyon east fork, 2.8 km SE Bolero Lookout 345 Comment
  SD236398  Rhamnus ilicifolia A. C. Sanders, Fred M. Roberts, Amber ONeal, D. E. Bramlet 2008-5-9 35297 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, along old dirt road, c. 1.25 mi. ESE of Walnut Cyn Reservoir. 340 Comment
  RSA743467  Rhaphiolepis indica Fred M. Roberts, Carol A. Roberts 2008-9-28 7116 Orange Dana Point: Dana Point Headlands, CNLM Preserve, near Strands Road Gate, 0.8km WNW Marine Institute, Dana Point Harbor. 65 Comment
  UC1094403  Rhaponticum repens John W. Ingram 1953-12-1 Orange 2 mi n, on State Highway 39 Huntington Beach Comment
  IRVC68  Rhus integrifolia A. S. Boughey, P. Pembrook 1965-7-16 1011 Orange Los Trancos Canyon, near spring, ; chaparral. San Joaquin Hills Comment
  POM201922  Rhus integrifolia L. M. Booth 1932-5-26 1119 Orange Newport Bay. Comment
  RSA0125890  Rhus integrifolia Fred M. Roberts Jr. 2012-4-24 7512 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
  RSA17492  Rhus integrifolia Ramon Valverde 1936-8-31 8237 Orange Rancho Santa Ana Botanic Garden.Wild plants in Pine Canyon. Comment
  RSA3178  Rhus integrifolia C. B. Wolf 1932-3-8 2685 Orange 1/2 mile N of Corona del Mar, Newport Bay. 8 Comment
  RSA450  Rhus integrifolia J. T. Howell 1928-2-26 854 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA454  Rhus integrifolia J. T. Howell 1927-7-29 516 Orange Near east boundary of Rancho Santa Ana. 213 Comment
  RSA444  Rhus ovata J. T. Howell 1927-7-26 481 Orange Claymine Canyon near Sierra Peak. 213 Comment
  RSA696221  Rhus ovata Keith E. Hoffmaster 1936-5-3 s.n. Orange Santa Ana Mts (Santiago Peak) Comment
  UCR234141  Rhus ovata Dick Newell, Judy Booth 2012-3-30 243 Orange Peninsular Range; Santa Ana Mtns., Maple Springs Road, Cleveland National Forest 258 Comment
  RSA679096  Ribes amarum Fred M. Roberts 2003-6-25 5951 Orange Santa Ana Mountains: Mojeska Peak in Upper Cold Springs Cyn., north of Main divide Truck Trail, 0.4 km ESE summit. 1471 Comment
Read comments Jan 3 2007
  SD152831  Ribes californicum var. hesperium Steve Boyd, Tim Ross 1992-5-20 7460 Orange Southern Santa Ana Mts., San Mateo Canyon Wilderness Area. Western edge of the wilderness 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
  UC1127397  Ribes californicum var. hesperium H. E. Norton 1931-3-14 40 Orange Verdugo Potrero Corona Quadrangle Comment
  RSA0024854  Ribes cereum L. C. Hull 1934-2-11 s.n. Orange Black Star Canyon Rd. Comment
  CAS-BOT-BC173124  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
  POM12991  Ribes indecorum P. A. Munz, I. M. Johnston 1922-5-18 5310 Orange Santa Ana River Canyon. 457 Comment
  RSA2109  Ribes indecorum Carl B. Wolf 1931-3-6 1833 Orange Trabuco Canyon Road, 1.25 miles below Trabuco Oaks. 305 Comment
  RSA543964  Ribes indecorum Steve Boyd, Orlando Mistretta 1991-5-9 6195 Orange Crest of range at Oak Flat, SE of Sierra Peak, just West of Riverside County Line. 793 Comment
  UC484246  Ribes indecorum C. B. Wolf 1931-3-6 1861 Orange 1 mi n of base Modieska Grade (w slope of mts.); Santa Ana Mts. 304 Comment
  SBBG52710  Ribes malvaceum C. Davidson 1977-5-18 5623 Orange Bear Springs, Santa Ana Mtns 1219 Comment
  RSA663160  Ribes malvaceum var. viridifolium R. E. Riefner Jr. 2000-3-18 20 -133 Orange Cleveland National Forest. Ridge-top E of Fremont Canyon and W of Hidden Valley. eastern part of Section 24. 732 Comment
  RSA787498  Ribes malvaceum var. viridifolium Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49706 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  SD247657  Ribes malvaceum var. viridifolium R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 46706 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  CAS-BOT-BC173740  Ribes speciosum C. B. Wolf 1931-3-6 1863 Orange 1 mi. no. of mouth of Harding Canyon, west slope of Santa Ana Mts. 304 Comment
  CAS-BOT-BC173741  Ribes speciosum James R. Shevock 1978-4-26 5902 Orange Along FS road 3S04 between Beeks Place and Black Star Canyon Road. Santa Ana Mountains, Cleveland National Forest 914 Comment
  POM6387  Ribes speciosum P. A. Munz, L. T. Street 1919-5-3 2664 Orange Santa Ana River Canyon. Comment
  RSA354  Ribes speciosum J. T. Howell 1927-6-24 205 Orange Aliso Canyon, Rancho Santa Ana. 274 Comment
  UC1127567  Ribes speciosum A. Lewis Mar 1934 332 Orange Santa Ana Canyon Corona Quadrangle Comment
  UCD142323  Ricinus communis B. Pitzer 1996-4-30 2779 Orange Upper Newport Bay: California Department of Fish and Game Ecological Reserve off (west of) Jamboree Road. 6 Comment
  RSA722425  Romneya coulteri Minor Warne 1934-4-21 s.n. Orange Junction Santiago and Black Star Canyons. Comment
  UCD96083  Romneya coulteri H. M. Hall 1913-5-28 9401 Orange Santiago Canon. 182 Comment
  UCR203896  Romneya coulteri R. E. Riefner Jr. 2008-3-20 08- 106 Orange Santa Ana Mountains, Irvine Ranch Reserve, Fremont Canyon Conservation Easement, west fork Fremont Canyon, south Donaldson Ranch area 380 Comment
  CAS-BOT-BC92178  Romneya coulteri var. coulteri A. M. White 1974-6-1 1363 Orange Ca. 20 miles east of Santa Ana, north of Silverado Canyon. 1005 Comment
  CAS-BOT-BC92181  Romneya coulteri var. coulteri Le Roy Abrams 1901-6-1 1852 Orange Trabuco Canon [Canyon]. Comment
  RSA0014062  Romneya trichocalyx Fred M. Roberts 2008-5-30 7017 Orange Lomas de Santiago: Santiago Creek wash, south of Irvine Mesa, 1.5 km SE Silverado Sch., Irvine Ranch Conservancy. 326 Comment
  UCR266346  Rorippa palustris D. E. Bramlet 2002-4-14 3265 Orange Laguna Lakes 113 Comment
  POM201869  Rosa californica L. M. Booth 1932-6-7 1161 Orange Newport Lagoon. Comment
  JEPS47286  Rubus pensilvanicus Lawrence M. Booth 1932-7-19 1271 Orange Bolsas Creek Comment
  POM2667  Rubus ursinus Philip A. Munz 1918-5-4 2219 Orange Laguna Beach. Comment
  RSA0022431  Rubus ursinus Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49789 Orange Santa Ana Mountains: Trabuco Canyon. Comment
  RSA0035069  Rubus vitifolius K. Kneen 1933-4-8 s.n. Orange Pacific Palisades. Comment
  RSA0048662  Rubus vitifolius Keith E. Hoffmaster 1930-4-27 505 Orange Santa Ana Mts. [Orange or Riverside County] Comment
  RSA39335  Rumex acetosella E. L. Paddock 1943-5-26 12741 Orange Near Santa Fe Railway 1/8 mile east of Northam Station. Buena Park. Comment
  CAS-BOT-BC421793  Rumex conglomeratus Brian Leatherman 1997-6-12 5340 Orange Santa Ana Mtn. foothills. East of San Juan Capistrano: San Juan Creek between Hwy 74 bridge and Mission Vieja site, i.e., ca. 2 to 4 mi E of I-15 / Hwy 74 jtn. 75 Comment
  RSA466060  Rumex conglomeratus Louis C. Wheeler 1932-6-22 841 Orange Newport Bay. 1 Comment
  UCR16522  Rumex crispus J. S. Davis 1972-5-6 720506- 26 Orange Newport Beach, 1.1 miles north from corner of San Jaquin Hills Road and Back Bay Road. 200 yards east along creek bed 6 Comment
  RSA5827  Rumex crispus Carl B. Wolf 1932-6-28 3795 Orange Bryant Ranch, north boundary of field. 9 Comment
  RSA16974  Rumex hymenosepalus E. R. Johnson 1936-4-16 7768 Orange Santa Ana Canyon, Rancho Santa Ana, along the road near roundtop. 366 Comment
  RSA698483  Rumex hymenosepalus R. H. McArthur 1934-3-17 s.n. Orange Gypsum Canyon. Comment
Read comments Dec 6 2008
  JEPS39872  Rumex maritimus Lawrence M. Booth 1932-6-28 1220 Orange Bolsas Creek Comment
  RSA234530  Rumex maritimus James Henrickson 1970-7-25 5086 Orange 3.5 miles NW of Huntington Beach growing along graded inner slope of East Garden Grov-Wintersburg Flood Control Channel near Bolsa Chica Salt Marsh. 1 Comment
  UCR158464  Rumex maritimus Adrian Wolf 1998-5-27 334 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
  RSA627778  Rumex salicifolius Scott D. White 1998-3-24 6231 Orange University of California, Irvine Campus: Site of proposed Research Park, Southwest of main campus circle, ca. halfway between Beerkeley Avenue and new freeway (Bonita Canyon). 24 Comment
  RSA734984  Rumex salicifolius A. C. Sanders, T. B. Salvato 2008-5-13 35386 Orange Lomas de Santiago, Santiago Canyon above (S of) mouth of Hangman Tree Canyon, just below Modjeska Canyon confluence 366 Comment
  UC536914  Rumex salicifolius var. salicifolius Lawrence M. Booth 1932-7-7 1245 Orange Newport Lagoon Comment
  UCR258357  Rumex stenophyllus Fred M. Roberts 2014-4-21 7857 Orange South Coast, SAN JOAQUIN HILLS: Laguna Lake 1 (Upper Laguna Lake), south basin 113 Comment
  CHSC26084  Salicornia bigelovii James Henrickson 1970-9-5 5314 Orange 3 1/2 miles NW of Huntington Beach, 1/4 mile SE of Warner Ave. in Lower Littoral zone of Bolsa Chica Salt Marsh along outer Bolsa Bay. 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
  UCSB36208  Salicornia pacifica Ferren, Wayne 1980-8-27 Orange W side of Backbay Drive ca. 1.5 km. NE of Rt. 1, Newport Backbay, Newport Beach Comment
  UCSB59704  Salicornia pacifica Tilforth, C. 1975-9-6 Orange Northeast shoreline of Upper Bay, Newport Beach Comment
  JEPS73722  Salicornia virginica L. R. Heckard with T. I. Chuang and R. Bacigalupi 1968-7-16 2043 Orange n of Newport Beach (across U.S. Highway 101 from Huntington State Beach); Bolsas Marsh Comment
  RSA768501  Salicornia virginica Justin M. Wood 2009-12-1 1392 Orange Santa Ana River: marsh just upstream of Pacific Coast Highway. 0 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
  RSA698842  Salix argophylla Unspecified s.n. Orange Arch beach Comment
  CAS-BOT-BC129735  Salix bonplandiana Helen D. Geis 1902-1-1 552 Orange Santa Ana Comment
  CAS-BOT-BC129737  Salix bonplandiana Carl B. Wolf 1932-4-8 2949 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Canyon. 120 Comment
  CAS-BOT-BC129738  Salix bonplandiana Carl B. Wolf 1932-4-8 2949 Orange Rancho Santa Ana, near Santa ana River, Santa Ana Canyon 120 Comment
  RSA539365  Salix exigua Fred M. Roberts Jr., Karlin G. Marsh 1989-3-14 4201 Orange San Juan Canyon, Lower San Juan Picnic Ground. 329 Comment
  UCR237828  Salix exigua Mark A. Elvin 2003-2-2 2282 Orange South Coast, San Joaquin Marsh, UCI campus SSE of intersection of Jamboree Blvd. and Campus Dr. 2 Comment
  CAS-BOT-BC108143  Salix gooddingii L. R. Abrams 1913-7-14 5005 Orange Santa Ana River Bridge near Orange Comment
  POM2033  Salix gooddingii M. Harbour 1915-4-1 s.n. Orange Olive. Comment
  SBBG58903  Salix gooddingii C. B. Wolf 1932-4-8 2950 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Cyn 120 Comment
  UC492356  Salix gooddingii Carl B. Wolf 1932-4-8 2950 Orange near Santa Ana R. Rancho Santa Ana (at s.e. corner of pear orchard); Santa Ana Canyon 120 Comment
  CAS-BOT-BC108201  Salix hindsiana John Harrington 1932-6-1 s.n. Orange San Juan Capistrano Comment
  CAS-BOT-BC108204  Salix hindsiana Carl B. Wolf 1932-4-15 2953 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Canyon 120 Comment
  RSA0038335  Salix hindsiana var. leucodendroides Carl B. Wolf 1932-3-16 2714 Orange Rancho Santa Ana. 121 Comment
  RSA0034815  Salix hindsiana var. parishiana Marcus E. Jones 1930-3-3 s.n. Orange Santa Ana Mountains. Comment
  UCR138398  Salix laevigata Scott D. White, Brian Leatherman 1997-6-12 5323 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
  IRVC8760  Salix lasiolepis Charles W. Sexton 1965-2-12 s.n. Orange Newport Beach. Southern Coastal Comment
  LA210190  Salix lasiolepis Lawrence M. Booth; 1932-12-31 1384 Orange Newport Bay Comment
  POM177837  Salix lasiolepis Marcus E. Jones 1930-1-26 25528 Orange Wildwood Camp, Santa Ana River. Comment
Read comments Nov 18 2013
  UCR26634  Salix lasiolepis E. W. Lathrop 1966-3-23 6101 Orange Santa Ana Mtns, Cleveland National Forest, Trabuco District. 4 mi. NE of Lake Irvine, Black Star Canyon Comment
  CAS-BOT-BC128466  Salix lasiolepis var. lasiolepis Ira L. Wiggins 1966-2-4 20417 Orange Along watercourse near mouth of Trabuco 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
  UCR203883  Salix lucida subsp. lasiandra R. E. Riefner Jr. 2008-5-20 08- 108 Orange Irvine Ranch Reserve, north Irvine Ranch, south Donaldson Ranch c. 0.75 mi along west fork of upper Fremont Canyon 405 Comment
  RSA700189  Salix sessilifolia R. H. McArthur 1934-2-27 s.n. Orange Santa Ana River at 1st St. Comment
  CAS-BOT-BC126305  Salix sessilifolia Carl B. Wolf 1932-3-16 2715 Orange Rancho Santa Ana, Santa Ana River bottom 121 Comment
  UCR103711  Salpichroa origanifolia B. G. Pitzer, T. Tennant 1997-11-8 3367 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
  CDA3181  Salsola australis R. E. Riefner Jr. 2006-11-14 06 -672 Orange City of Irvine, San Diego Creek; vicinity of Campus Avenue at University Drive. Comment
  IRVC9300  Salsola tragus B. T. Gittins 1966-6-22 1415 Orange 0.5mi N Warner on Euclid Ave. Huntington Beach Comment
  UCLA55680  Salvia C. Epling and H. Lewis 1940-4-21 Orange 6 mi e San Juan Capistrano Comment
  RSA0015964  Salvia apiana Fred M. Roberts 2012-4-24 7528 Orange San Joaquin Hills: Buck Gully, tributary canyon below San Joaquin Hills Road and 2.0 km W Signal Peak 167 Comment
  UCR97885  Salvia apiana George K. Helmkamp, E. A. Helmkamp 1997-4-24 1664 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, 1.6 mi. SE of Ortega Hwy (Calif. Hwy 74) on Rd. 7-S14 549 Comment
  CAS-BOT-BC233626  Salvia leucophylla Helen Kush 1908-8-1 s.n. Orange Santiago Canyon, Santa Ana Mts. Comment
  UCD125599  Salvia leucophylla J. E. Eckert 1945-6-28 s.n. Orange location unknown. Comment
  RSA16341  Salvia mellifera Percy C. Everett 1935-6-18 7193 Orange Santa Ana Mountains. Main divide motorway to Santiago Peak, 1 mile from Ortega Highway. 732 Comment
Read comments Dec 14 2011
  RSA731981  Salvia mellifera A. C. Sanders 2008-4-8 34779 Orange Peninsular Range: Lomas de Santiago, SSE os f Santiago Reservoir on Harding Truck Trail at Dripping Springs Loop, above Limestone Canyon. 475 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
  CSUSB687  Sambucus cerulea Nancy Robb 1966-4-15 Orange 4 miles southeast of Yorba Linda, 500 yards off Santa Ana Canyon Road. 121 Comment
  UC1125331  Sambucus mexicana A. Lewis May 1934 421 Orange Trabuco Canyon Cleveland National Forest, Elsinore Quadrangle 1341 Comment
  UC527395  Sambucus mexicana C. B. Wolf 1931-7-25 2293 Orange above irrigation canal (just n of Mexican houses); Rancho Santa Ana, Santa Ana Canyon 121 Comment
  UCR193364  Sambucus mexicana A. C. Sanders 2008-5-28 35431 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Bee Flat at mouth of Limestone Canyon 264 Comment
  JEPS43080  Samolus parviflorus John Thomas Howell 1927-7-15 2775 Orange Santa Ana River, Santa Ana Canyon, Rancho Santa Ana Santa Ana Canyon; Santa Ana River, , Rancho Santa Ana 152 Comment
  RSA542586  Sanicula arguta Fred M. Roberts 1988-3-15 3867 Orange Rancho Mission Viejo: Central Gabino Canyon, 4.4 km SE Point Rancho Survey Marker. 164 Comment
  UCD127918  Sanicula arguta P. B. Kennedy 1924-2-5 s.n. Orange Irvine Range near Santa Ana. Comment
  UCR209361  Sanicula arguta Fred M. Roberts, D. E. Bramlet 2008-4-1 6837 Orange Lomas de Santiago, Loma Ridge, East Lomas Ridge Road along crest, 3.2 km northwest of Bee Peak and 3.4 km northeast of Rattlesnake Reservoir Dam, Irvine Ranch Conservancy 388 Comment
  RSA534  Sanicula arguta J. T. Howell 1928-3-17 874 Orange Bee Canon, Rancho Santa Ana. 152 Comment
  UCR191777  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
  RSA221030  Sanicula crassicaulis E. W. Lathrop 1966-5-1 6262 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland Nat'l Forest, Santa Ana Mountains. 396 Comment
  UC1980267  Sanicula crassicaulis A. C. Sanders with Fred M. Roberts 2008-4-8 34768 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. Comment
  UCR242700  Sanicula crassicaulis Fred M. Roberts 2012-5-10 7577 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
  UCR256938  Sanicula crassicaulis Naomi Fraga, Duncan S. Bell 2009-5-11 2722 Orange Peninsular Range; Santa Ana Mountains, Chiquita Trail, Lion Canyon 762 Comment
  IRVC15153  Sanicula crassicaulis var. crassicaulis A. S. Boughey 1965-3-16 73 Orange Silverado Canyon. Santa Ana Mountains Comment
  RSA97369  Sanicula graveolens F. W. Peirson 1923-5-6 3500 Orange open area at summit of Santiago Peak, Santa Ana Mountains. 1732 Comment
  SD136180  Satureja chandleri Kirsten Winter 1993-4-9 Orange Along San Juan and Chiquito trails and in Chiquito Springs area, southeast part of county 609 Comment
  UCR47863  Satureja chandleri David Charlton 1987-5-4 s.n. Orange Santa Ana Mtns., Chiquito Basin, Trail from Blue Jay Campground to Chiquito Falls 762 Comment
  UCR193064  Schinus molle A. C. Sanders, Fred M. Roberts 2008-6-17 35473 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Agustine staging area near Limestone Canyon Rd. gate at Santiago Cyn Rd. 260 Comment
  RSA658195  Schinus molle T. A. Daubert 1991-5-26 674 Orange Tucker Wildlife Sanctuary, Modjeska Canyon nature trail. Comment
  SD133207  Schinus terebinthifolius A. C. Sanders 1990-10-6 10201 Orange Newport Bay, North Star County Beach area on the SW end of the bay, ca. 2 km inland of Hwy 1 Comment
  IRVC19942  Schismus barbatus Gordon A. Marsh, Karlin G. Marsh 1983-5-2 s.n. Orange Burn area between Coal Canyon and Gypsum Canyon. Santa Ana Mountains 421 Comment
  IRVC20796  Schismus barbatus Fred M. Roberts, S. L. Fritzke 1982-4-3 504 Orange Dana Point Headlands: north of Dana Strand Road, 0.5km W Sana Point Harbor; 0.8km SSW Richard Henry Dana School. southern coastal 80 Comment
  UCR191335  Schismus barbatus A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34647 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
  RSA232208  Schoenoplectus americanus James Henrickson 1970-7-24 4984 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
  UCR247918  Schoenoplectus americanus Fred M. Roberts 2012-7-18 7673 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
  UCSB52891  Schoenoplectus americanus Roberts, Fred 1984-10-18 Orange Santa Ana Mtns.: San Juan Canyon, 2.5 km. ENE San Juan Guard Station; 4.0 km. WNW Sitton Peak 310 Comment
  UCSB56462  Schoenoplectus americanus Thorne, Robert 1975-4-6 Orange San Joaquin Marsh: near Irvine and coast Comment
  CAS-BOT-BC111264  Schoenoplectus californicus Mrs. M. T. Bradshaw 1901-11-1 s.n. Orange Orange, Orange County. Comment
  RSA21060  Scirpus acutus var. occidentalis Ramon Valverde 1938-8-4 9444 Orange Rancho Santa Ana, Santa Ana Canyon 122 Comment
  UC729885  Scirpus californicus Carl B. Wolf 1932-7-7 3862 Orange Bryant Ave. 1/2 mi e Los Alamitos Blvd. (near the town n side of road, opposite Bryant Ranch); Bryant Ranch Comment
  CDA23122  Scirpus cernuus Mark A. Elvin, D. G. Kelch 2006-12-9 5302 Orange Southern Coastal; Newport Backbay; Big Canyon, lower end. Comment
  UCD124853  Scrophularia californica R. S. Woglum 1932-4-16 s.n. Orange Trabuco Canyon. Comment
  CAS-BOT-BC61962  Selaginella John Thomas Howell 1927-6-26 2611 Orange Claymine Canyon, n. Santa Ana Mts. 457 Comment
  RSA124718  Selaginella bigelovii E. K. Balls, Percy C. Everett 1957-11-25 22841 Orange Upper Trabuco Canyon, 2.2 mi. ne. from entrance to Holy Jim Canyon. 990 Comment
  RSA631395  Selaginella bigelovii Valerie Sosa, LeRoy Gross 1999-6-7 476 Orange West side of Modjeska Peak, along Main Divide Road. 1448 Comment
  SEINET10470958  Selaginella bigelovii John Thomas Howell 1927-7-22 Howell 2834 Orange Claymine Canyon, Santa Ana Mts., On hot and exposed opens between shrubs on very steep hillsides and in the cracks and crevices of sandstone outcrops, Upper Sonoran Zone. 185 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
  RSA0012667  Senecio californicus R. E. Riefner Jr. 2000-6-26 20 -583 Orange NCCP North Ranch Policy Plan Area. Along dirt road running N from Baker Canyon Road. 305 Comment
  RSA472903  Senecio californicus M. B. Dunkle 1935-3-3 4352 Orange San Juan Canyon. 457 Comment
  UC718547  Senecio californicus P. C. Everett 1935-3-15 6294 Orange near corner post 3938 (Rancho Santa Ana, Santa Ana Canyon); Rancho Santa Ana, Santa Ana Canyon 182 Comment
  SBBG132983  Senecio linearifolius S. D. White, M. Honer 2004-5-17 10401 Orange ridges and open slopes directly N of intersection of Crown Valley Parkway and Pacific Island Dr; City of Laguna Niguel 61 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
  IRVC904  Senecio vulgaris D. Dixon 1965-3-25 Orange Silverado Canyon. Santa Ana Mountains Comment
  RSA697120  Senecio vulgaris Kenneth Beard 1934-02 s.n. Orange Along riverbank of Santa Ana River. Comment
  RSA734612  Senecio vulgaris Keith E. Hoffmaster 328 Orange Santa Ana Comment
  RSA184082  Senecio vulgaris I. L. Wiggins 1966-2-18 20447 Orange 0.5 mile west of entrance to Rancho Santa Ana Comment
  IRVC25222  Sesuvium verrucosum Fred M. Roberts 1986-11-4 3213 Orange Anaheim Bay, north of Hog Island, Seal Beach Naval Weapons Station 0 Comment
  POM201707  Sesuvium verrucosum L. M. Booth 1932-7-4 s.n. Orange Newport Lagoon. Comment
  RSA5954  Sesuvium verrucosum C. B. Wolf 1932-7-7 3847 Orange Bryant Ranch, 100 ft. N of Bixby Ave. & 7/10 miles W of Hansen road., (100 ft. N & 2/10 mi. W of SE corner of NE 1/4 of NW 1/4 of sect. 34 T4S R11W) Comment
  UCSB52902  Sesuvium verrucosum Roberts, Fred 1983-9-29 Orange Irvine; San Joaquin Freshwater Marsh, 1.6 km. NNW UCI campus center 2 Comment
  RSA610224  Sesuvium verrucosum Fred M. Roberts Jr., Julie Vanderwier 1997-4-22 5022 Orange Bolasa Chica Salt Marsh: (U. S. Fish Wildlife Service cell 60), west of old oil field, 0.8 km S Chica survey Mark. 0 Comment
  RSA719406  Setaria adhaerens Fred M. Roberts, Robert L. Allen 2006-10-8 6429 Orange San Juan Capistrano: San Juan Creek Flood Control Channel, c.a. 0.2 to 0.3km N Stonehill Dr. bridge and 1.1km SSE Marco Forster Jr. High Sch. 4 Comment
  RSA731924  Setaria adhaerens Fred M. Roberts, Sandy Leatherman 2007-11-27 6686 Orange Yorba Linda: drainage channel on east side of Amberdale Dr. ca. 0.3 km S Fairmont Blvd. 118 Comment
  CAS-BOT-BC243591  Setaria parviflora Ira L. Wiggins 1965-10-24 20294 Orange Orange grove on S side of Yorba Linda Blvd. 1/4 mi. E of State College Blvd., Fullerton Comment
  CAS-BOT-BC243594  Setaria parviflora Helen D. Geis 1902-1-1 560 Orange Unspecified Comment
  POM50701  Setaria parviflora H. Droege 1902-05 s.n. Orange Santa Ana Orange County Comment
  RSA184127  Setaria parviflora I. L. Wiggins 1965-9-26 20260 Orange Roadside at W end of Orangethorpe Estates subdivision, near Atwood. Orange County Comment
  CAS-BOT-BC243633  Setaria pumila J. B. Anderson 1966-5-2 621 Orange Along Newport Freeway at 17th Street, Santa Ana Comment
  RSA542393  Sidalcea malviflora Fred M. Roberts, K. Keane 1988-5-25 3982 Orange Ranch Mission Viejo: Lower Canada Chiquita, 2.5 kilometers SSE Medium Rancho Survey Mark. 82 Comment
  UCR76075  Sidalcea malviflora B. G. Pitzer, Stu Hemstreet 1992-5-27 1950 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, along Forest Service Road 3S04 to Blue Jay Group Campground, off Hwy 74 (Ortega Hwy), c. 2 mi west of El Cariso Campground 765 Comment
  SEINET3132581  Sidalcea neomexicana subsp. thurberi L. Abrams 1903-4-17 3257 Orange Low Ground Between Tustin & Myford Comment
  CAS-BOT-BC434367  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
  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
  RSA184079  Silene gallica I. L. Wiggins 1966-5-1 20573 Orange Closely grazed field along south side of Brea Olinda blvd, near Carolina Ave. Comment
  RSA286  Silene gallica J. T. Howell 1928-2-25 834 Orange Near Bee Canyon, Rancho Santa Ana. 152 Comment
  RSA734647  Silene laciniata A. C. Sanders, T. B. Salvato 2008-5-13 35361 Orange Lomas de Santiago, Santiago Canyon above (S of) mouth of Hangman Tree Canyon, just below Modjeska Canyon confluence 366 Comment
  UCR168467  Silene laciniata D. E. Bramlet 2004-5-27 3595 Orange Donna O'Neill Reserve, SW corner of Reserve, 1.28 km west of Cristianitos Road and 1.52 km N of Pico 183 Comment
  RSA0054829  Silene laciniata Keith E. Hoffmaster 1934-7-15 110 Orange Santa Ana Mts. (Modjeska). Comment
  POM339144  Silene laciniata subsp. major F. R. Fosberg 1930-6-15 52854 Orange Santiago Canyon above Modjakas Home, Santa Ana Mts. Comment
  RSA581444  Silene laciniata subsp. major Fred M. Roberts 1989-5-12 4363 Orange Santa Ana Mountains: Santiago Canyon, Flemming Regional Park, just E of Modjeska at end of paved road, ca. 3.2 kilometers WSW Laurel Springs. 455 Comment
  UC1543015  Silene laciniata subsp. major Donald G. Nelson 1935-4-6 251 Orange e San Juan Capistrano (San Juan Canyon); e of San Juan Capistrano, San Juan Canyon Comment
  RSA696563  Silene laciniata subsp. major Minor Warne 1934-5-19 s.n. Orange Live oak Canyon. Comment
  UCR227633  Silene verecunda subsp. platyota Robt. L. Allen 2003-6-22 12380 Orange Santa Ana Mountains, Modjeska Peak, southwestern arm, 0.6 air mi southwest of the summit 1512 Comment
  RSA16488  Silene verecunda subsp. platyota Percy C. Everett 1935-6-18 16488 Orange Santa Ana Mts., summit of Santiago Pk. 1732 Comment
  RSA751429  Silybum marianum A. C. Sanders, Fred M. Roberts 2008-7-3 35695 Orange 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. 275 Comment
  RSA16981  Sinapis arvensis Percy C. Everett 1936-3-20 s.n. Orange Rancho Santa Ana Botanic Garden, Santa Ana Canyon. West of Adm. Bldg. 198 Comment
  RSA788902  Sinapis arvensis Fred M. Roberts 2008-6-12 7042 Orange Lomas de Santiago: Loma Ridge, ridge north of Shoestring Road above Santiago Cyn. Rd. Irvine Ranch Land Conservancy. 321 Comment
  RSA797658  Sinapis arvensis R. F. Thorne, E. W. Lathrop 1977-5-18 49761 Orange Santa Ana Mountains: at head of Trabuco Canyon Trail Comment
  SD232231  Sinapis arvensis Scott D. White, Amanda Duchardt 2003-3-27 8849 Orange Santa Ana Mountain Foothills: Canyon bottom and west facing slopes above Canada Gobernadora. 91 Comment
  RSA749361  Sisymbrium irio Fred M. Roberts 2008-4-15 6900 Orange Lomas de Santiago: Loma Ridge, Lower Hicks Cyn., east ridge, Conservation Trail, 1.6 km ESE Rattlesnake Reservoir dam and 2.7 km WSW Bee Peak, Irvine Ranch Conservancy. 172 Comment
  UCR209344  Sisymbrium irio Fred M. Roberts 2008-4-15 6900 Orange Lomas de Santiago, Loma Ridge, Lower Hicks Canyon, east ridge, Conservation Trail, 1.6 km east-southeast of Rattlesnake Reservoir Dam and 2.7 km west-southwest of Bee Peak, Irvine Ranch Conservancy 172 Comment
  CAS-BOT-BC75235  Sisymbrium irio Ira L. Wiggins 1965-10-7 20363 Orange Vacant lot between State College Boulevard and Troy High School campus, Fullerton. 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
  UCR230834  Sisymbrium orientale Dick Newell, Don Millar 2011-6-18 177 Orange Peninsular Range; Santa Ana Mtns., mouth of Fremont Canyon, just north of the Lake Irvine dam 204 Comment
  RSA654311  Sisymbrium orientale Caralisa Breidenbaugh, Mark Breidenbaugh 1992-5-24 41 Orange 100 ft Northwest of Chino Hills State Park Boundary. 243 Comment
  SEINET7073415  Sisyrinchium bellum A. G. Vestal 1963-4-24 s.n. Orange La Paz Canyon, Rancho Mission Viejo. Coordinate datum: NAD27. Comment
  SEINET4171050  Sisyrinchium bellum J. R. Glen 1957-5-3 Orange 1/2 mile from the San Bernardino county line, about 3 miles east of Olinda on the Carbon Canyon road Comment
  CDA20833  Solanum americanum P. Akers 2006-3-25 PA 7 -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
  JEPS12062  Solanum americanum Lawrence M. Booth 1932-6-28 1213 Orange Bolsas Creek Comment
  RSA682757  Solanum americanum Scott D. White, Amanda Duchardt 2003-3-27 8851 Orange Santa Ana Mountain Foothills: Canyon bottom and west facing slopes above Canada Gobernadora. 91 Comment
  UC536954  Solanum americanum Lawrence M. Booth 1932-6-28 1213 Orange Bolsas Marsh Comment
  HSC21298  Solanum douglasii C. L. Hitchcock, C. V. Muhlick 1964-3-17 23063 Orange 8 mi. E of Yorba Linda, Santa Ana Canyon. 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
  UC1125197  Solanum douglasii H. E. Norton 1931-3-6 35 Orange Baker Canyon 609 Comment
  UC12096  Solanum douglasii Lawrence M. Booth 1932-5-19 1075 Orange Newport Bay Comment
  UCD126938  Solanum douglasii B. Pitzer 1996-4-30 2762 Orange Upper Newport Bay: California Department Fish and Game Ecological Reserve, off (W of) Jamboree Rd. 6 Comment
  RSA0020076  Solanum douglasii Keith E. Hoffmaster 1927-5-15 533 Orange Santa Ana Comment
  RSA5969  Solanum douglasii Carl B. Wolf 1932-9-13 4042 Orange Bryant Ranch, No. boundary between San Gabriel River Flood Control Dike and Well, 1300 ft W of NE. corner of SE 1/4 sect. 25. 6 Comment
  RSA74872  Solanum elaeagnifolium Elroy Robinson 1935-6-26 s.n. Orange Along Santa Fe Railway, El Toro, south of Los Angeles. Comment
  JEPS12147  Solanum umbelliferum Alice King May, 1908 Orange Santa Ana Mountains Comment
  RSA427453  Solanum umbelliferum E. Crow 1929-2-22 169 Orange Gypsum Canyon, Santa Ana Mountains. Near Corona. 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
  UCSB52472  Solanum umbelliferum Roberts, Fred 1983-1-7 Orange Laguna Beach: Park Canyon along west flank of Temple Hill, 1.7km NE Thurston High School; 1.7km SE Bench Mark 104 205 Comment
  NY820525  Solanum xanti F. M. Reed 1928-2-10 5712 Orange Arch Beach 46 Comment
  UCR97816  Solanum xanti Scott D. White 1997-3-28 4831 Orange Santa Ana Mountains, Above Modjeska Canyon, proposed water tank site. 488 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
  IRVC21389  Solidago californica A. S. Boughey 1968-7-9 409 Orange Santa Ana mtns: upper Santiago Canyon. Peninsular Ranges Comment
  RSA943  Solidago confinis J. T. Howell 1927-10-29 s.n. Orange Bryant Ranch near Long Beach. 15 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
  SD245291  Sonchus asper Robert Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49582 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74) Comment
  CAS-BOT-BC374663  Sonchus oleraceus Ira L. Wiggins 1966-5-25 20668 Orange Parkway along south side of Nutwood Lane, margin of CSCF campus, Fullerton Comment
  POM202167  Sonchus oleraceus L. M. Booth 1932-6-15 1193 Orange Marsh border East of Huntington Beach. Comment
  RSA5505  Sonchus oleraceus C. B. Wolf 1932-6-28 3759 Orange Along western half of no. boundary of 40 acre Valencia Orange grove at Bryant Ave. and Hansen Road. 9 Comment
  UC537022  Sonchus oleraceus Lawrence M. Booth 1932-5-12 1012 Orange Newport Bay Comment
  POM202168  Sonchus oleraceus L. M. Booth 1932-7-21 1297 Orange Near Sunset Beach, Anaheim Marsh. Comment
  RSA719412  Sorghum bicolor Fred M. Roberts, Robert L. Allen 2006-10-8 6433 Orange San Juan Capistrano: San Juan Creek Flood Control Channel, c.a. 0.2 to 0.3km N Stonehill Dr. bridge and 1.1km SSE Marco Forster Jr. High Sch. 4 Comment
  SEINET998621  Sorghum bicolor R. E. Riefner Jr. 2005-1 05 -710 Orange South Coast: Irvine, Irvine Blvd. at The Groves RD. (Tustin 7.5' Q) 84 Comment
  IRVC18904  Sorghum halepense Fred M. Roberts 1981-6-24 284 Orange San Juan Capistrano: 3.2km south of Saddleback College on Rancho Viejo Rd. southern coastal 42 Comment
  SD384  Sorghum halepense none given VII, 1915 Orange Vic. Santa Anna Comment
  POM122350  Spartina foliosa Marcus E. Jones 1924-8-26 s.n. Orange Newport. 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
  UCD92994  Spartina foliosa Peter H. Raven 1957-9-28 11379 Orange north limits of Surfside. Comment
  RSA734634  Spartium junceum A. C. Sanders, T. B. Salvato 2008-5-13 35365 Orange Lomas de Santiago, Santiago Canyon above (S of) mouth of Hangman Tree Canyon, just below Modjeska Canyon confluence 366 Comment
  IRVC362  Spergula arvensis M. Savage 1965-4-20 Orange Trabuco Canyon. Santa Ana Mountains 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
  CAS-BOT-BC390857  Spergularia marina Frank W. Peirson 1924-5-31 4658 Orange Laguna Canon [Canyon] Comment
  RSA0098515  Spergularia marina P. A. Munz 1923-4-1 6911 Orange Laguna Lakes. 61 Comment
  RSA0127421  Spergularia villosa Fred M. Roberts 2016-3-17 8016 Orange San Joaquin Hills: City of Irvine, Ridge between Coyote Canyon and Bommer Canyon along Turtle Ridge Trail, 0.6 km NNE Signal Peak and 1.1 km SW Cattle Camp. 314 Comment
  UCR186146  Sphaeralcea emoryi var. emoryi Robert DeRuff 1994-4-24 452 Orange Southern Coast, Newport Beach, Newport Back Bay, at top and bottom of a draw between 23rd St. and the Delhi Channel 5 Comment
  UCR231057  Stachys A. C. Sanders, Kent Beaman 2011-9-27 39913 Orange Peninsular Range; Santa Ana Mtns., Maple Springs Truck Trail, 3.4 km NNW (340 deg. ) of Santiago Peak 1088 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
  SEINET9324867  Stachys ajugoides Unknown 2008-4-8 34752 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' topo.). Mountain slopes; clay-loam soil with shale and sandstone chunks; chaparral burned Oct. '07. Comment
  UC537164  Stachys ajugoides var. rigida Lawrence M. Booth 1932-5-19 1080 Orange Newport Bay Comment
  POM202024  Stachys bullata L. M. Booth 1932-5-19 1080 Orange Newport Bay. Comment
  RSA0012748  Stachys rigida subsp. quercetorum Fred M. Roberts 2012-5-10 7573 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
  RSA82576  Stachys rigida subsp. quercetorum F. W. Peirson 1923-9-7 4039 Orange Santa Ana Mountains; Trail Trabuco Canyon to Santago Peak. 1220 Comment
  RSA797911  Stachys rigida subsp. rigida Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49821 Orange Santa Ana Mountains: Trabuco Canyon. Comment
  RSA588788  Stachys rigida subsp. rigida Fred M. Roberts, Dave Brotrager 1990-4-18 4574 Orange Rancho Mission Viejo: Chiquita Ridge, just west of Canada Chiquita, 2.9 km N Median Rancho Survey Marker 183 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
  POM7319  Stenotaphrum secundatum Fred M. Roberts, Sandy Leatherman 2007-11-27 6669 Orange Yorba Linda: Santa Ana Canyon, Santa Ana River wash, S of E La Palma Road near Via Lomas de Yorba Linda, about 0.6 km W Gypsum Cyn. bridge. 113 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
  CAS-BOT-BC375124  Stephanomeria cichoriacea Carl B. Wolf 1933-8-24 5393 Orange Santa Ana Mts. Summit of Santiago Pk. 1731 Comment
  UCR231058  Stephanomeria cichoriacea A. C. Sanders, Kent Beaman 2011-9-27 39916 Orange Peninsular Range; Santa Ana Mtns., 1.7 km NW (307 deg. ) of Santiago Peak along the road 1460 Comment
  JEPS36708  Stephanomeria diegensis L. M. Booth 1932-8-5 1360 Orange Newport Bay Comment
  RSA756324  Stephanomeria diegensis A. C. Sanders, Fred M. Roberts, Jutta Burger 2009-10-21 37198 Orange Lomas de Santiago, Limestone Canyon, west of Limestone Canyon Rd. 366 Comment
  RSA699169  Stephanomeria virgata J. Vlahos 1933-10-5 s.n. Orange French Hill. 5 mi. east of airport. Comment
  HSC79001  Stipa pulchra Steve Boyd 1981-5-13 Orange Pelican Hill, Irvine Ranch property in the San Joaquin Hills S of Corona del Mar Comment
  RSA0048676  Stipa pulchra Keith E. Hoffmaster 1935-3-17 551 Orange Near El Toro (Trabuco Road). Comment
  RSA678496  Stylocline gnaphaloides Fred M. Roberts, Robert L. Allen, Carol Roberts 2003-5-11 5846 Orange Dana Point Headlands: 0.8km SSW Richard Henry Dana School north of Marguerita Drive 76 Comment
  RSA683168  Stylocline gnaphaloides Scott D. White, Amanda Duchardt 2003-4-10 9019 Orange Santa Ana Mountain Foothills: Ridges & east-facing canyons above Trampas Canyon. 122 Comment
  UC1123320  Styrax officinalis var. redivivus J. B. Spring 1931-4-14 34 Orange Hot Springs, San Juan Canyon; Elsinore Quad., Hot Springs, San Juan Canyon 213 Comment
  UCR263576  Styrax officinalis var. redivivus Ed Kentner 2012-5-17 138 Orange Santa Ana Mountains, Irvine Ranch Conservancy, Fremont Canyon Reserve near Cathedral Rock and Lakeview Road 730 Comment
  UCR26979  Styrax officinalis var. redivivus E. W. Lathrop 1966-4-18 s.n. Orange Santa Ana Mtns., 4 mi NE of Lake Irvine, Black Star Canyon, Cleveland National Forest, Trabuco District 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
  SD127487  Styrax redivivus Reid Moran, Jack Reveal and Bob Smart 1975-7-18 22599 Orange North slope of ridge, upper Trabuco Canyon, Santa Ana Mts. 900 Comment
  UC2042142  Styrax redivivus R. F. Thorne with E. W. Lathrop, W. Wisura 1977-7-8 49598 Orange Santa Ana Mountains: rocky ravine tributary to San Juan Canyon, along Ortega Highway (74) about 2 miles above San Juan Fire Station. Comment
  SBBG128111  Styrax redivivus R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49598 Orange tributary to San Juan Cyn, along Ortega Hwy (74) ca. 2 mi above San Juan Fire Station; Santa Ana Mtns Comment
  RSA5866  Suaeda calceoliformis C. B. Wolf 1932-9-13 4020 Orange Bryant Ranch. 3/10 miles W of Los Alamitos Blvd.700 ft. south of Bryant Ave., (800 ft. east & 700 ft. south of NW corner of SW 1/4 sec. 30 T4S R11W) 7 Comment
  RSA696273  Suaeda californica Keith E. Hoffmaster 1927-6-5 s.n. Orange near Newport Comment
  CAS-BOT-BC110386  Suaeda esteroa Marcus E. Jones 1924-8-26 s.n. Orange Newport. 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
  RSA611262  Suaeda esteroa L. C. Wheeler 1946-9-28 6385 Orange Newport Bay. Comment
  RSA758777  Suaeda esteroa Anstruther Davidson 1907-9-1 1778 Orange Newport Comment
  SD123924  Suaeda esteroa C. W. Tilforth 1975-9-6 1044 Orange Northeast shoreline of Upper Bay, Newport Beach. Comment
  JEPS59879  Suaeda moquinii Lawrence M. Booth 1932-7-4 1247 Orange Newport Bay Comment
  JEPS59882  Suaeda taxifolia Lawrence M. Booth 1932-8-5