Search Results — 2000 specimen records retrieved (1611 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/).
 Records are made available under the CCH Data Use Terms.

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  RSA585489  Abronia maritima R. E. Riefner Jr. 1994-5-22 94 -380 Orange San Mateo Point, W of RR tracks, just N of Orange Co. line marker. Comment
  CAS-BOT-BC229407  Abronia umbellata David D. Keck 1933-9-21 2535 Orange Sunset Beach 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
  SEINET10484225  Acacia David B. Dunn 1971-8-13 Dunn 18129 Orange Mimosaceae. Cultivated plants vicinity of Laguna Beach, California. Comment
  SD175820  Acacia cyclops D. G. Kelch 2006-12-9 06 554 Orange Irvine. University Dr. along tidal Creek just E of I-73. 9 Comment
  SEINET946800  Acacia longifolia R. J. Barr 1964-1 64 -589 Orange Roadside near Capistrano Beach Comment
  SEINET946801  Acacia longifolia R. J. Barr 1964-1 64 -589 Orange Roadside near Capistrano Beach Comment
  SEINET947423  Acacia podalyriifolia R. J. Barr 1964-1 64 -588 Orange Roadside near Capistrano Beach Comment
  SD175821  Acacia saligna D. G. Kelch 2006-12-9 06 533 Orange Newport Bay, Back Bay Dr. between marsh and steep bluff. 10 Comment
  SEINET5642646  Acacia saligna Shelby J. Wood 2013-3-6 7 Orange Laguna Hills.; 0 Comment
  RSA696051  Achillea millefolium M. Funakoshi 1943-10-23 s.n. Orange Santa Ana. Comment
  UCSB48021  Acmispon americanus Roberts, Fred 1980-7-1 Orange Irvine; San Diego Creek, 0.2 km NE Interstate 5; 2.0 km WSW Bench Mark 343 85 Comment
  UCSB47994  Acmispon heermannii Roberts, Jr., Fred 1980-7-7 Orange Santa Ana Mtns.; San Juan Canyon, Calif. Rte. 74; 2.2 km. ENE San Juan Guard Station; 0.6 km W Bench Mark 1100 305 Comment
  SBBG3414  Acmispon heermannii var. heermannii J. M. Tucker 1941-5-30 261 Orange Ortega Hwy, 2 to 3 mi E of western boundary of Cleveland Nat Forest Comment
  CAS-BOT-BC29185  Acourtia microcephala LeRoy Abrams 1901-6-16 1855 Orange Trabuco Canyon Comment
  UCR193785  Acourtia microcephala A. C. Sanders, Fred M. Roberts 2008-7-3 35674 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor 415 Comment
  UCD128506  Acroptilon repens Ethelbert Johnson 1922-8-8 s.n. Orange Greenville. Comment
Read comments
Apr 10 2016
  RSA792253  Adenostoma fasciculatum R. H. McArthur 1934-4-7 4 Orange Ladd Canyon. Comment
  RSA453158  Adenostoma fasciculatum var. fasciculatum N. C. Cooper 1949-5-1 3941 Orange San Juan Canyon. 610 Comment
  UCR247503  Adiantum capillus-veneris R. E. Riefner Jr. 2008-7-9 08- 218 Orange South Coast, Laguna Beach, bluff area west of West St and Pacific Coast Hwy 11 Comment
  IRVC14112  Adiantum capillus-veneris K. Marvosh 1966-6-5 Orange Trabuco Canyon, 2mi up canyon, 200yds E of road; on shaded rocks of canyon. Santa Ana Mountains Comment
  POM295313  Aesculus californica Lyman Benson 1955-3-19 15406 Orange Flying Cow Ranch, south end of Carbon Canyon (Ed Gaines Ranch) San Jose Hills. 259 Comment
Read comments
Nov 26 2016
  RSA798594  Agoseris retrorsa R. F. Thorne, E. W. Lathrop 1977-5-18 49748 Orange Santa Ana Mountains: summit of Santiago Peak 1733 Comment
  RSA0013960  Agrostis pallens Fred M. Roberts 2008-5-14 6968 Orange Lomas de Santiago: Loma Ridge, upper Bee Flat Cyn. below Loma Ridge Rd., 1.3 km N Bee Peak and 5.4 km NW Bolero Lookout, Irvine Ranch Conservancy. 377 Comment
  RSA773555  Agrostis pallens Fred M. Roberts 2008-6-3 7029 Orange Lomas de Santiago: Loma Ridge, East Fork Rattlesnake Canyon, ca. 2.6 km NE of Rattlesnake Reservoir spillway and 2.4 km ENE Bee Peak 235 Comment
  UCD53225  Agrostis pallens R. Tofsrud 1951-4-1 s.n. Orange Orange-San Diego County borders: Santa Ana Mts. 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
  UCR215278  Agrostis pallens Fred M. Roberts 2008-5-14 6968 Orange Lomas de Santiago, Loma Ridge, upper Bee Flat Canyon below Loma Ridge Road, 1.3 km north of Bee Peak and 5.4 km NW of Bolero Lookout. Irvine Ranch Conservancy 377 Comment
  CAS-BOT-BC138654  Agrostis stolonifera Carl B. Wolf 1932-6-13 3722 Orange Fullerton, Malvern & Nicholas Aves. 53 Comment
  RSA6042  Agrostis stolonifera C. B. Wolf 1932-7-13 3722 Orange Fullerton. 53 Comment
  JEPS73752  Agrostis viridis Lawrence M. Booth 1932-6-7 1163 Orange Newport Bay Comment
  UCR116052  Albizia lophantha Donna Krucki 2001-2-24 s.n. Orange Peninsular Range; Santa Ana Mtns., Caspers Regional Park; San Juan Canyon near confluence of Hot Springs Canyon, Sitton Peak Truck Trail 213 Comment
  RSA637489  Allium monticola Valerie L. Soza, LeRoy Gross 1999-6-10 509 Orange Santa Ana Mountains: Southwestern extension of Modjeska Peak, off Main Divide Road. 1524 Comment
  RSA678523  Allium monticola Fred M. Roberts, David E. Bramlet 2002-6-6 5526 Orange Main Divide Truck Trail, west slope of Modjeska Peak, 0.4km WNW summit. 1457 Comment
  RSA798606  Allium monticola var. keckii Robert F. Thorne, E. W. Lathrop 1977-5-18 49744 Orange Santa Ana Mountains: summit of Santiago Peak 1733 Comment
  RSA0119684  Allium praecox Fred M. Roberts 2015-3-10 7921 Orange San Joaquin Hills: Niguel Hill, on ridge above Aliso Canyon ear end of Ceanothus Drive (Hangover House property), 0.4 km WNW summit Aliso Peak. 122 Comment
  UCR192119  Allium praecox A. C. Sanders, Fred M. Roberts, Amber O'Neal, D. E. Bramlet 2008-5-9 35305 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along old dirt road, c. 1.25 mi. ESE of Walnut Cyn Reservoir 340 Comment
  RSA0051391  Allium praecox Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49664 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. Comment
  RSA548870  Allium praecox Fred M. Roberts 1987-4-3 3342 Orange Irvine: San Joaquin Hills, Central Shadey Canyon, 2.8 kilometers NE Signal Hill. 103 Comment
  CAS-BOT-BC170687  Alnus rhombifolia Ira L. Wiggins 1966-2-4 20411 Orange Along immediate margin of Stream above Ranger Station, Trabuco Canyon Comment
  RSA144  Alnus rhombifolia J. T. Howell 1927-7-21 452 Orange Santa Ana River, Rancho Santa Ana. 152 Comment
  RSA184109  Alnus rhombifolia I. L. Wiggins 1966-1 20411 Orange along immediate margin of stream above ranger station, Trabuco Canyon Comment
  RSA5391  Alnus rhombifolia B. D. Stark 1932-12-30 1717 Orange Rancho Santa Ana. River bottom below Mexican houses. 122 Comment
  UCSB47987  Alnus rhombifolia Roberts, Jr., Fred 1980-6-25 Orange Santa Ana Mtns., San Juan Canyon below Calif. Rte. 74, 2.4 km. ENE San Juan Guard Station; 0.3 km. WSW BM 1100 290 Comment
  SD153014  Aloe chabaudii Steve Boyd, T. Ross 1992-5-20 7470 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area, western edge of wilderness in Lucas Canyon, about old mining habitations in side canyon, upstream Ao mile from Lucas Canyon Trail crossing. 390 Comment
  IRVC26717  Aloe striata Mark A. Elvin, J. Liou, J. Carpenter, J. Nguyen 2004-3-8 3183 Orange UCI Arboretum Southern Coastal 15 Comment
  CLARK-A1528-917  Amaranthus albus Patricia A. Andrews 1975-6-26 5914 Orange Capistrano Bay Beach 9 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
  UCR140882  Amaranthus albus Robert DeRuff 1987-8-22 299 Orange Southern Coast, Newport Back Bay, Santa Ana Heights area 18 Comment
  POM201837  Amaranthus blitoides L. M. Booth 1932-12-16 1377 Orange Santa Ana River, near coast of Orange. Comment
  RSA542441  Amaranthus deflexus Fred M. Roberts 1988-10-21 4161 Orange Irvine: Michelson bridge at San Diego Creek. 4 Comment
  IRVC14988  Amaranthus hybridus 1976-10-28 Orange Nieblas Elementary Sch. playground Fountain Valley Comment
  UCSB46145  Amaranthus hybridus Roos, Alfred 1937-12-9 Orange West 17th St. in Santa Ana Comment
  RSA274  Amaranthus powellii J. T. Howell 1927-7-27 502 Orange Near ranch, Rancho Santa Ana 152 Comment
  UC537267  Amaranthus retroflexus Lawrence M. Booth 1932-7-25 1307 Orange Santa Ana River, 0.5 mi from ocean Santa Ana River Comment
  CAS-BOT-BC13608  Ambrosia acanthicarpa John Thomas Howell 1927-10-22 3164 Orange In Santa Ana River bottom, Santa Ana Canyon 152 Comment
  POM122718  Ambrosia chamissonis Marcus E. Jones 1924-8-26 s.n. Orange Newport. Comment
  RSA678452  Ambrosia chamissonis Valerie L. Soza, Kenneth Clark, LeRoy Gross, Will Miller, Fred M. Roberts, Gary D. Wallace 2001-4-4 1115 Orange Anaheim Bay: Seal Beach U. S. Naval Weapons Station, southwestern edge of Seal Beach National Wildlife Refuge. 3 Comment
  CAS-BOT-BC133200  Ambrosia psilostachya T. B. Salvato 2010-9-27 5121 Orange South Coast: Dana Point Headlands, Harbor Point Park, south of Scenic Dr. and Cove Rd., beyond the end of Green Lantern St., overlooking Dana Point Harbor 70 Comment
  CAS-BOT-BC45064  Ambrosia psilostachya John Thomas Howell 1927-9-24 3121 Orange Santa Ana River bottom, Santa Ana Canyon 152 Comment
  RSA0042768  Ambrosia psilostachya Fred M. Roberts 2012-7-18 7679 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
  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
  SD263545  Ambrosia psilostachya Jim Riley 2013-10-15 119 Orange San Clemente area; 0.56 miles ESE intersection Avenida Pico and Camino La Pedriza; just N San Diego County line 68 Comment
  UCR239931  Ambrosia psilostachya O. F. Clarke 2004-6-23 s.n. Orange South Coast, Newport Back Bay, just south of the Muth Interpretive Center 15 Comment
  UCR247914  Ambrosia psilostachya Fred M. Roberts 2012-7-18 7679 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
  RSA0031761  Ambrosia psilostachya R. F. Thorne 1977-11-21 50813 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs Comment
  UCR197655  Ammannia coccinea A. C. Sanders, Fred M. Roberts 2008-9-18 36095 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
  UC454543  Ammannia robusta I. J. Condit 1908-7-21 Orange Los Alamitos Comment
  UCR193782  Amorpha californica A. C. Sanders, Fred M. Roberts 2008-7-3 35680 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor 415 Comment
  UC718381  Amorpha californica var. californica P. C. Everett 1935-6-19 7235 Orange 1/2 mi below (w) head of canyon; Santa Ana Mts., Trabuco Canyon 1066 Comment
  RSA378  Amorpha fruticosa J. T. Howell 1927-6-6 49 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  RSA725474  Amorpha fruticosa Fred M. Roberts, Megan Lulow 2007-7-30 6544 Orange Fremont Canyon, 1.3 km NE Irvine Lake spillway, North Irvine Ranch Policy Area. 253 Comment
  RSA499932  Amsinckia intermedia E. A. Purer, Freda Detmers 1932-3-23 15572 Orange near Huntington Beach. Roadside of Coast Highway Comment
  RSA620  Amsinckia intermedia J. T. Howell 1928-2-25 833 Orange Near Bee Canyon, Rancho Santa Ana. 152 Comment
  UC1178237  Amsinckia intermedia Francia Chisaki 1957-4-3 927 Orange 6 mi s Irvine (just s of El Toro near top of hill on Hwy 101) Comment
  UC1178238  Amsinckia intermedia Francia Chisaki 1957-4-3 928 Orange 6 mi s Irvine (just s of El Toro near top of hill on Hwy 101) Comment
  UC494723  Amsinckia intermedia Philip A. Munz 1932-3-29 12189 Orange Costa Mesa Comment
  UCR223429  Amsinckia intermedia Dick Newell, Don Millar 2011-2-15 061 Orange South Coast, San Joaquin Hills, Laguna Wilderness Park, along Stagecoach Trail 131 Comment
  RSA0089445  Amsinckia intermedia C. B. Wolf 1931-3-6 1864 Orange East side of Orange Co. Park. 152 Comment
  RSA184105  Amsinckia intermedia I. L. Wiggins 1966-3-5 20501 Orange Among grasses and weeds on grazed hillside, along hwy S-18, about 4.5 mi. E of Laguna Beach Comment
  UCD119276  Amsinckia intermedia Francia Chisaki 1957-4-3 926 Orange 6 miles S of Irvine, just S of El Toro near top of hill on Highway 101. Comment
  IRVC224  Amsinckia menziesii var. intermedia McGuire 1965-5-1 Orange Corona del Mar. Newport Beach Comment
  IRVC245  Amsinckia menziesii var. intermedia D. Orr 1965-3-27 Orange Trabuco Rd. 3mi E El Toro Marine Base. El Toro Comment
  RSA678449  Anagallis arvensis Valerie L. Soza, Kevin B. Clark, LeRoy Gross, Will Miller, Fred Roberts, Gary Wallace 2001-4-4 1123 Orange Seal Beach U. S. Naval Weapons Station, southwestern edge of Seal Beach National Wildlife Refuge. 3 Comment
  RSA732166  Anagallis arvensis A. C. Sanders, Fred M. Roberts 2008-4-8 34729 Orange Peninsular Range: Lomas de Santiago, Loma Ridge, head of Hicks Canyon. S of Santiago Reservoir. 351 Comment
  UCR96318  Anagallis arvensis B. G. Pitzer 1996-4-30 2794 Orange San Joaquin Hills, Crystal Cove State Park, south of City of Irvine on State Hwy 1 (Pacific Coast Hwy) 15 Comment
  RSA649080  Anagallis arvensis Karl Price 1988-5-21 58 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
  RSA68995  Anagallis arvensis Raymond J. Dobbs 1924-7-3 s.n. Orange Laguna Beach. Comment
  RSA0036018  Andropogon glomeratus Robert F. Thorne 1977-11-21 50807 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs Comment
  CAS-BOT-BC400331  Anemopsis californica Carl B. Wolf 1932-7-2 3818 Orange Carbon Canyon, 1/8 mi. below La Vida Springs 213 Comment
  RSA232211  Anemopsis californica James Henrickson 1970-7-24 4995 Orange 2 miles NNW or Huntington Beach around small freshwater industrial pond at eastern margin of Bolsa Chica Salt Marsh along Huntington Beach Mesa. 0 Comment
  RSA627755  Anemopsis californica Scott D. White 1998-5-31 6567 Orange UCI Campus; Southwest of Farm School site (now proposed as Student Rec. Ctr., 33 38.5N, 117 50 W 24 Comment
  UCR107223  Anemopsis californica Scott D. White 1998-5-31 6567 Orange University of California, Irvine campus, SW of Farm School site (now proposed as Student Recreation Center). 37 Comment
  CDA6811  Anthemis cotula Robert L. Pope 1957-6-21 Orange Moulton Ranch. 0 Comment
  IRVC21319  Anthemis cotula Fred M. Roberts 1982-7-31 788 Orange 0.3km NNW Clemente Survey Mark; 1.2km NNE Civiv Center, San Clemente 220 Comment
  UC536891  Anthemis cotula Lawrence M. Booth 1932-5-15 1200 Orange Santa Ana River Santa Ana River Comment
Read comments
Aug 21 2007
  UCR192216  Anthriscus caucalis A. C. Sanders, Fred M. Roberts 2008-5-6 35255 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
  RSA737889  Antirrhinum multiflorum R. E. Riefner 2007-6-29 07 -286 Orange Irvine Ranch Reseve, N Irvine Ranch, E Fork cliffs at upper Fremont Canyon along Black Star SCE road. 579 Comment
  UCR192112  Antirrhinum nuttallianum A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35315 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along fire line/bulldozer cut, c. 1.5 mi. east of Walnut Cyn Reservoir 346 Comment
  UCR274178  Antirrhinum nuttallianum Dick Newell, Don Millar, Nicole Kahal 2015-6-9 409 Orange Peninsular Range; Santa Ana Mtns., foothills west of Black Star Canyon Road, at the end of the service road going to Edison's tower, 2/10 mile south of Lake View Rd. off State Spur 577 Comment
  JEPS12253  Apiastrum angustifolium Lawrence M. Booth 1932-5-12 1027 Orange Newport Bay Comment
  RSA708286  Apiastrum angustifolium Scott D. White, Jennifer H. Jones 2005-3-31 10859 Orange City of Laguna Beach. 549 Nyes Place. Proposed home site on ca. 0.5 acre. 91 Comment
  RSA749299  Apiastrum angustifolium Fred M. Roberts 1999-4-21 5184 Orange Lomas de Santiago: Loma Ridge, ridges north of Dripping Springs Cyn., 1.5 km W Silverado Sch. and 4.8 km NNW Bolero Lookout. 365 Comment
  IRVC17821  Apium graveolens R. Hobson 1965-4-10 Orange Santa Ana Heights, 2431 Mesa Dr. Southern Coastal Comment
  RSA700187  Apium graveolens R. H. McArthur 1934-5-10 s.n. Orange 1916 Wash 4 mi. west 1 mi. south S.A. Comment
  RSA6027  Apocynum cannabinum B. D. Stark 1932-7-15 3876 Orange Ranch Santa Ana River bottom below the ranch houses. 1220 Comment
  IRVC19395  Araujia sericifera R. L. Allen 1983-2-12 A627 Orange Fullerton; Hillcrest Park, slope bordering E Valley View Drive. Southern Coastal Comment
  UCR7861  Araujia sericifera O. F. Clarke 1968-8-24 s.n. Orange c. 2 mi. east of Yorba Linda turnoff on Santa Ana Canyon Road 101 Comment
  UCSB56518  Arbutus menziesii Meinzer, R.; Mulroy, T. 1971-4-25 Orange Upper Trabuco Canyon, Santa Ana Mts. Comment
  UCR223437  Arctostaphylos glandulosa Dick Newell, Don Millar 2011-2-8 055 Orange Peninsular Range; Santa Ana Mtns., Black Star Coal Mine above Fremont Canyon, along Coal Rd. 475 Comment
  UCR282324  Arctostaphylos glandulosa A. C. Sanders, Yi Huang 2017-3-3 42703 Orange Peninsular Range; Santa Ana Mtns., North Main Divide Road, 6.5 km north of Hwy 74, at junction to Blue Jay and Falcon Camps 1038 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
  POM367266  Arctostaphylos glandulosa subsp. glandulosa E. Crow 1929-2-22 165 Orange Gypsum Canyon, near corona, Santa Ana Mts. Comment
  RSA629317  Arctostaphylos glandulosa subsp. glandulosa Jon E. Keeley 1992-6-12 15524 Orange North of El Cariso on road to Los Pinos Pk, 3.8 km north of Hwy 74. 1000 Comment
  RSA629318  Arctostaphylos glandulosa subsp. glandulosa Jon E. Keeley 1992-6-12 15525 Orange North of El Cariso on road to Los Pinos Pk, 3.8 km north of Hwy 74. 1000 Comment
  SD247632  Arctostaphylos glandulosa subsp. glandulosa R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49683 Orange Northern Santa Ana Mountains; Coal Canyon [NW of Sierra Peak] 456 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
  UC284866  Arctostaphylos glandulosa subsp. zacaensis P. A. Munz 1923-5-7 7741 Orange slopes above Santiago Peak 1219 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
  CAS-BOT-BC27476  Argemone munita subsp. robusta Carl Brandt Wolf 1933-8-24 5403 Orange Santa Ana Mts. Summit of Santiago Pk. 1731 Comment
  RSA18605  Argemone munita subsp. robusta Carl B. Wolf 1937-12-3 9382 Orange Main divide motorway. Between Santiago Peak and Modjeska Peak. 1646 Comment
  RSA0013974  Aristida adscensionis Fred M. Roberts, David E. Bramlet 2008-5-13 6953 Orange Upper Weir Cyn., central fork, 3.5 km NE Roberst Peak 369 Comment
  RSA39  Aristida adscensionis var. modesta J. T. Howell 1928-2-7 817 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA682760  Aristida purpurea Scott D. White, Amanda Duchardt 2003-3-27 8857 Orange Canyon bottom and west facing slopes above Canada Gobernadora. 91 Comment
  RSA588883  Aristida ternipes var. hamulosa Fred M. Roberts, Dave Bontrager 1990-6-5 4672 Orange Rancho Mission Viejo: Uper Gabino Canyon, near Orange County line, 3.9 kilometers E Point Ranch Survey Marker; UTM Z11 37 10 300m N, 4 52 100m E. 280 Comment
  RSA759263  Arnica discoidea Robt Allen, Christopher M. Barnhill 2008-5-26 s.n. Orange upper Silverado Canyon, along Maple Springs Truck Trail, 5.7 road miles up from Maple Springs forest gate, 0.8 road miles down from junction with Main Divide Truck Trail. SW end of short road spur. 1313 Comment
  RSA776  Artemisia biennis J. T. Howell 1927-10-29 784 Orange Bryant Ranch near Long Beach. 15 Comment
  RSA689539  Artemisia biennis R. E. Riefner 2003-8-17 03 -330 Orange Costa Mesa, Talbert Regional Park, Discovery Walk Road and Balboa Avenue. 3 Comment
  CAS-BOT-BC90187  Artemisia californica John Thomas Howell 1927-10-22 3159 Orange hills on n. side of Santa Ana [Canon] 213 Comment
  IRVC489  Artemisia californica M. Munier 1965-4-20 Orange Comment
  RSA417250  Artemisia californica Marcus E. Jones 1930-3-3 26497 Orange Santa Ana Mountains. 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
  SEINET10757879  Artemisia californica Andrew Townesmith, Karen M. Meyer; Tracy Scott 2007-3-11 Townesmith 676 Orange Cleveland National Forest. Off Long Canyon Road (Forest Service road 6S05), at mile post 2 (2.0 miles NW of route 74). 967 Comment
  POM201845  Artemisia douglasiana L. M. Booth 1932-7-23 1302 Orange Corona del Mar, Newport Beach Comment
  RSA292462  Artemisia dracunculus James Henrickson 1973-10-21 8052 Orange Eastern Anaheim, 2 blocks E. of Imperial Hwy along La Palma Ave., just N. of Santa Ana River. Comment
  RSA417326  Artemisia dracunculus F. R. Fosberg 1931-6-21 S 5089 Orange Lower Santiago Canyon. 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
  POM201693  Asclepias eriocarpa L. M. Booth 812 Orange Santa Ana Canyon. Comment
  RSA49952  Asclepias eriocarpa E. K. Balls 1949-6-11 13494 Orange heavy clay and stone, steep dry benches, Rancho Santa Ana 2 mi below entrance to Botanic Garden, Santa Ana River Canyon. 122 Comment
  POM201840  Asclepias fascicularis L. M. Booth 1932-7-21 1291 Orange Anaheim Creek Comment
  IRVC24991  Asclepias fascicularis Fred M. Roberts, R. Fisher 1986-6-18 3014 Orange Irvine; [San Joaquin Hills], east lateral to Shady Canyon, c.a. 2.9km SE French Hill. 82 Comment
  RSA184112  Asparagus asparagoides I. L. Wiggins 1965-6-5 20330 Orange Orange grove on N side of Chapman Ave. near Kraemer Rd. Comment
  IRVC26734  Asparagus officinalis Peter A. Bowler 2003-4-20 s.n. Orange UC San Joaquin Freshwater Marsh Reserve; bluffs along NW edge of marsh. Southern Coastal 9 Comment
  CAS-BOT-BC65782  Aspidotis californica John Thomas Howell 1927-7-3 2639 Orange Claymine Canyon, n. Santa Ana Mts. 304 Comment
  UCSB47614  Aspidotis californica Roberts, Fred 1980-5-3 Orange Santa Ana Mtns., San Juan Canyon near mouth of Viejo Canyon; below Rte. 74, 2.5km by road ENE San Juan Guard Station; 0.5km WSW Bm 1100 335 Comment
  IRVC177  Asplenium bulbiferum McGuire 1965-5-4 HS0564 Orange Corona del Mar: Bayside Dr.. Southern Coastal Comment
  POM201855  Aster bernardinus L. M. Booth 1933-9-8 1392 Orange Anaheim Marsh. Comment
  CDA10359  Aster subulatus D. G. Kelch 2006-12-9 6 .567 Orange Irvine. University Dr along tidal creek just E of I-73. Comment
  RSA782  Aster subulatus var. ligulatus J. T. Howell 1927-10-29 775 Orange Bryant Ranch near Long Beach. 15 Comment
  RSA6139  Astragalus brauntonii B. D. Stark 1933-06 4997 Orange Santa Ana Mountains, north slopes of Sierra Peak. [county unspecified] Comment
Read comments
Aug 9 2007
  UCD104734  Astragalus didymocarpus var. didymocarpus G. H. Vansell 1939-4-23 s.n. Orange Santiago Canyon. Comment
  UCR199730  Astragalus didymocarpus var. didymocarpus Scott D. White, Justin Wood 2008-4-21 11904 Orange Chino Hills, Chino Hills State Park, N of 91 freeway, above Yorba Linda 488 Comment
  RSA732089  Astragalus gambelianus A. C. Sanders, Fred M. Roberts 2008-3-25 34547 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills. 259 Comment
  SEINET10491172  Astragalus trichopodus subsp. leucopsis Tilforth 1979-5-23 TILFORTH 1808 Orange On steep rock cliffs with encelia califronica, eriogonum fasciculatum. Mouth of Aliso canyon, s laguna. 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
  RSA90711  Astragalus trichopodus var. lonchus F. W. Peirson 1923-9-8 4044 Orange Trabucco Canyon. 427 Comment
  CDA23088  Atriplex Mark A. Elvin, D. G. Kelch 2006-12-9 5299 Orange Southern Coastal; Newport Backbay; Big Canyon, lower end. Comment
  CDA23154  Atriplex Mark A. Elvin, D. G. Kelch 2006-12-9 5309 Orange Southern Coastal; Newport Backbay; Big Canyon, lower end. Comment
  RSA671246  Atriplex amnicola R. E. Riefner 1999-5-22 99 -290 Orange City of Dana Point, beach west of Pacific Coast Hwy. South of Salt Creek near Ritz Carlton Hotel. 15 Comment
  RSA737375  Atriplex amnicola R. E. Riefner 2006-5-7 06 -180 Orange N end of City of San Clemente, along I5, N side, immediately S of Camino De Estrella exit ramp. 66 Comment
  POM17484  Atriplex californica P. A. Munz 1923-4-1 6912 Orange Laguna Lakes. 61 Comment
  UC536975  Atriplex californica Lawrence M. Booth 1932-5-19 1061 Orange Newport Bay Newport Bay (margin of tidal flat) Comment
  UCR14056  Atriplex californica Hyrum B. Johnson 1973-10-27 s.n. Orange Pacific Coast, Bolsa Chica State Beach 1 Comment
  RSA542649  Atriplex californica Fred M. Roberts 1988-10-12 4159 Orange San Clemente State Park: c.a. 0.2 km SE end of Ave. California along Santa Fe RR. 3 Comment
  RSA615542  Atriplex californica Robb Hamilton 1989-7-20 s.n. Orange Newport Beach: along Pacific Coast Hwy just west of jct with Newport Blvd. 0 Comment
  POM637  Atriplex canescens I. M. Johnston 1918-9-3 2149 Orange Laguna Beach. 6 Comment
  RSA452454  Atriplex canescens E. A. Purer 1932-8-31 s.n. Orange Near Route 101 Comment
  RSA65358  Atriplex canescens F. W. Peirson 1924-8-29 4528 Orange Corona Del Mar Comment
  CAS-BOT-BC170196  Atriplex canescens subsp. canescens John Thomas Howell 1927-10-22 3162 Orange In hills on n. side of Santa Ana Canyon. 152 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
  SD144473  Atriplex canescens var. canescens B. Pitzer 1996-4-30 2789 Orange Crystal Cove State Park, S of City of Irvine on Hwy 1 (Pacific Coast Hwy). Comment
  POM632  Atriplex coulteri I. M. Johnston 1918-5-5 1928 Orange Laguna Beach. Comment
  RSA452402  Atriplex coulteri Anstruther Davidson 1908-5-1 1800 Orange Newport Bay Comment
  UCR133201  Atriplex coulteri D. E. Bramlet 1994-4-30 2377 Orange San Joaquin Hills, at the head of Bommer Canyon, approximately 30 m NE of the ridgeline truck trail, near peak 1033 296 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
  UCR130490  Atriplex glauca R. E. Riefner Jr. 2002-5-4 02- 101 Orange South Coast, Upper Newport Bay, Jamboree Road at Bayview Dr., edge of Newport Beach Q. 21 Comment
  RSA743661  Atriplex glauca R. E. Riefner 2006-6-20 6 -253 Orange City of Rancho Santa Margarita, W side of SR-241 near Los Alisos Blvd. 292 Comment
  CLARK-A1528-978  Atriplex lentiformis subsp. breweri Patricia A. Andrews 1998-5-20 Orange Capistrano Bay Beach 9 Comment
  POM278739  Atriplex lentiformis subsp. breweri Grant D. Brown 1949-10-9 399 Orange 4 miles N. of San Clemente on hyway 101 Comment
  RSA743476  Atriplex lentiformis subsp. lentiformis Fred M. Roberts, Carol A. Roberts 2008-9-28 7112 Orange Dana Point: Dana Point Headlands, CNLM Preserve near NE Gate, 0.5km W Marine Institute (Dana Point Harbor). 75 Comment
  RSA478323  Atriplex leucophylla Gertrude Dunn 1931-8-9 s.n. Orange Between Huntington Beach and Santa Ana Comment
  POM219183  Atriplex pacifica L. C. Wheeler 1932-6-25 855 Orange Newport Bay. 3 Comment
  RSA717049  Atriplex prostrata Fred M. Roberts, Chris M. Barnhill 2005-9-27 6282 Orange San Juan Capistrano: San Juan Creek wash, east of La Novia Road bridge, 1.4km E Mission San Juan Capistrano. 27 Comment
  RSA696212  Atriplex rosea Keith E. Hoffmaster 1934-5-31 s.n. Orange Santa Ana. Comment
  UC536972  Atriplex rosea Lawrence M. Booth 1932-8-5 1350 Orange West Newport Beach West Newport Beach (salt marsh) Comment
  RSA65341  Atriplex rosea F. W. Peirson 1924-8-29 s.n. Orange 4 miles south of Santa Ana. Comment
  CDA23155  Atriplex semibaccata Mark A. Elvin, D. G. Kelch 2006-12-9 5296 Orange Southern Coastal; Newport Backbay; Big Canyon, lower end. Comment
  SD133115  Atriplex semibaccata A. C. Sanders 1990-10-6 10192 Orange Newport Bay, North Star County Beach area on the southwest end of the bay, ca. 2.0 km inland of Highway 1. 0 Comment
  UC1714443  Atriplex semibaccata P. A. Munz 1934-3-26 13136 Orange edge of salt marsh Newport Beach Newport Beach 4 Comment
  UCR222630  Atriplex semibaccata T. B. Salvato 2010-10-27 5105 Orange South Coast, Dana Point Headlands, Harbor Point Park, south of Scenic Dr. and Cove Rd., beyond the end of Green Lantern St., overlooking Dana Point Harbor 70 Comment
  POM202120  Atriplex semibaccata P. A. Munz 1934-3-26 13136 Orange Newport Beach. 5 Comment
  POM201891  Atriplex serenana L. M. Booth 1932-5-19 1070 Orange Newport Lagoon, Corona del Mar. Comment
  RSA292521  Atriplex serenana James Henrickson 1972-10-21 8064 Orange Newport Beach, So. of Jamboree Rd., E. of Irvine Coast Country Club near U.C. Irvine., Irrigated grassland eventually to be used for large Newport Beach Business Center. 46 Comment
  UC206816 Image available Atriplex serenana var. davidsonii A. Davidson, M. D. Sep 1913 2951 Orange Balboa; ; Balbra Comment
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Feb 22 2012
  JEPS59655  Atriplex serenana var. serenana L. M. Booth 1932-7-4 1255 Orange Newport Bay Comment
  IRVC25483  Atriplex serenana var. serenana Fred M. Roberts 1987-7-28 3508 Orange Peter's [Creek] Channel at Barranca Crossing, Irvine 8 Comment
  RSA720295  Atriplex suberecta Tom Perring, Tracy Pinkard 1994-3-2 s.n. Orange South Coast: Tustin, Marine Helicopter Station at the corner of Moffett Dr and Hamboree Rd. 11 Comment
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Jul 19 2010
  SD220052  Atriplex suberecta Mark A. Elvin 2004-5-2 3424 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7 km (air) NNW UC Irvine campus center. 3 Comment
  UCR116014  Atriplex triangularis George K. Helmkamp, E. A. Helmkamp 2000-10-18 6231 Orange Newport Bay, South side of the back bay. 6 Comment
  UC1130900  Avena barbata A. Lewis Apr 1934 395 Orange San Joaquin Hills Corona Quadrangle Comment
  UCD56180  Avena barbata Ira L. Wiggins 1966-3-22 20554 Orange 1/2 mile below entrance to Cleveland National Forest. Floor of Silverado Canyon. Comment
  HSC9025  Avena fatua J. W. Johnson 1961-3-29 Orange Newport Beach Comment
  IRVC27505  Avena fatua Mark A. Elvin 2004-5-2 3421 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7km (air) NNW UC Irvine campus center. Southern Coastal 3 Comment
  UCR140792  Avena fatua Robin G. Marushia 2004-4-16 019 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
  RSA13  Azolla filiculoides John Thomas Howell 1927-7-6 284 Orange Santa Ana River bottom, Rancho Santa Ana 152 Comment
  RSA21069  Azolla filiculoides Ramon Valverde 1938-8-4 9435 Orange Rancho Santa Ana, Santa Ana Canyon. 122 Comment
  IRVC6594  Baccharis douglasii Charles W. Sexton 1972-6-17 Orange Bolsa Chica salt marsh southern coastal 0 Comment
  RSA756322  Baccharis douglasii A. C. Sanders, Fred M. Roberts, Jutta Burger 2009-10-21 37201 Orange Lomas de Santiago, Santiago Canyon near mouth of Limestone Cyn., at Agustine Staging Area 260 Comment
  RSA0008326  Baccharis malibuensis R. E. Riefner, Adrian Wolf 2000-8-23 20 -732 Orange NCCP North Ranch Policy Plan Area. Fremont Canyon: N. of Santiago Creek & immediately S. of major stream fork 305 Comment
  SD108950  Baccharis pilularis James Henrickson 1972-10-21 8047 Orange Eastern Anaheim, 2 blocks east of Imperial Highway, along La Palma Avenue, just north of Santa Ana River. 60 Comment
  UCR209677  Baccharis pilularis A. C. Sanders, Fred M. Roberts, Jutta Burger 2009-10-21 37204 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, along SW side of Santiago Canyon Rd. near south edge of Irvine Lake 252 Comment
  UCSB48036  Baccharis pilularis Roberts, Fred 1981-9-26 Orange Laguna Beach; Pacific coast Highway, 1.1 km. SE El Moro School near Abalone Point 39 Comment
  SD11869  Baccharis pilularis subsp. consanguinea Carl B. Wolf 1934-12-26 6262 Orange South end of San Clemente. 14 Comment
  LA203019  Baccharis salicifolia James Lauter; 1953-4-25 sn Orange U.S. Highway 101, 17 mi. S of Laguna, San Mateo Creek bed Comment
  POM350366  Baccharis salicifolia N. C. Cooper 1949-3-18 3166 Orange Santa Ana Canyon 244 Comment
  RSA5325  Baccharis salicifolia B. D. Stark 1932-12-30 4470 Orange Rancho Santa Ana. River bottom below Mexican houses. 122 Comment
  UCR100454  Baccharis salicifolia B. G. Pitzer 1996-4-30 2769 Orange South Coast, Upper Newport Bay, Calif. Dept. Fish & Game Ecological Reserve, off (W of) Jamboree Road 6 Comment
  JEPS21245  Baccharis salicifolia subsp. salicifolia L. M. Booth 1932-6-9 1179 Orange Coastal Santa Ana River Basin Comment
  UCD129475  Baccharis salicifolia subsp. salicifolia P. B. Kennedy 1925-1-12 4 Orange on range, Irvine Ranch. Comment
  UCD129479  Baccharis salicifolia subsp. salicifolia B. Pitzer 1996-4-30 2769 Orange Upper Newport Bay: California Department Fish and Game Ecological Reserve, off (W of) Jamboree Rd. 6 Comment
  JEPS21259  Baccharis salicina L. M. Booth 1933-10-18 Orange Newport Beach Comment
  SBBG63169  Baccharis salicina E. Rockwell 1919-1 198 Orange near Brea 106 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
  UCR46557  Baccharis salicina B. G. Pitzer, L. F. LaPre 1986-10-20 0310 Orange Peninsular Range; Santa Ana Mtns., Siphon Reservoir, c. 5 mi NE of Irvine and c. 1 mi NE of intersection Irvine Blvd and Sand Canyon Ave 122 Comment
  UCR267220  Baccharis sarothroides Fred M. Roberts, Sandra L. Leatherman 2008-9-3 7091 Orange Santa Ana River Canyon, YORBA LINDA: intersection of La Palma Ave. and Mercado del Rio Street 135 Comment
  RSA699553  Baccharis viminea Kenneth Beard 1934-02 s.n. Orange Walnut grove on Freeman Street, Santa Ana. Comment
  RSA798094  Barbarea orthoceras R. F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49590 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74) Comment
  IRVC24276  Bassia hyssopifolia Fred M. Roberts, G. A. Marsh 1985-10-26 2524 Orange Santa Ana River: adjacent to Huntington Beach; 0.7km SSW Adams Street bridge. southern coastal 4 Comment
  POM259529  Bassia hyssopifolia A. C. Keller, F. F. Gander 1938-7-25 s.n. Orange Dike south of San Diego. Comment
  RSA5447  Bassia hyssopifolia C. B. Wolf 1932-9-13 4025 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
  RSA689547  Bassia hyssopifolia R. E. Riefner 2003-8-17 3 -332 Orange Costa Mesa, Talbert Regional Park, Discovery Walk Road and Balboa Avenue. 12 Comment
  LA105120  Batis maritima Barry A. Prigge; 1988-6-30 8119 Orange eastern Newport Beach, ca 1100 ft E of Santa Ana River/Greenville-Banning channels along old river channel and SE of oil wells 0 Comment
  RSA439758  Batis maritima Anstruther Davidson 1907-9-1 1769 Orange Newport Comment
  RSA439760  Batis maritima Anstruther Davidson 1902-9-1 s.n. Orange Newport Beach Comment
  SFV20021  Batis maritima A. Dittmer, S. Dark 2004-10-3 76 Orange Bolsa Chica wetlands. South side of public parking lot off Highway 1. Comment
  UC1779704  Batis maritima Rudolf Schmid 1999-7-14 1999 -7 Orange Bolsa Chica Marsh, S of Seal Beach. From the S side of parking lot by HW1. Comment
  RSA650814  Bebbia juncea Daniel Truong 1991-5-13 30 Orange Irvine Regional Park, left field adjacent to main entrance, within 1/4 mile radius of ''closed area''. Comment
  UCR193051  Bebbia juncea A. C. Sanders, Mitch Provance 2008-5-20 35404 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago area, Santiago Creek Canyon, c. 3/4 mile below Modjeska Canyon confluence 355 Comment
  IRVC22019  Bebbia juncea var. aspera D. Bramlet 1985-7-2 AH-1 Orange Anaheim Hills Golf Course, on knoll near #3 green, Anaheim 183 Comment
  SD143950  Beta vulgaris Scott D. White 1993-3-5 1128 Orange Marine Corps Air Station, southeast of Red Hill Ave. and northeast of Barranca. 14 Comment
  RSA799647  Bidens frondosa Justin M. Wood 2010-9-29 2742 Orange Santa Ana Canyon: Santa Ana River, southwest of Green River Golf Course and north of Hwy 91 and Santa Ana River Trail. 128 Comment
  CAS-BOT-BC127998  Bidens pilosa Ira L. Wiggins 1965-12-18 20426 Orange upper edge of Hillcrest Park, Fullert6on Comment
  RSA696879  Bidens pilosa Anonymous s.n. Orange Santa Ana. Comment
  SD236124  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 Aqua Chinon Canyon, 2.4 miles north of El Toro 470 Comment
  RSA698737  Bloomeria crocea L. C. Hall 1934-4-1 s.n. Orange Panerama Heights Comment
  RSA0012750  Bloomeria crocea var. crocea Fred M. Roberts 2012-5-10 7575 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
  RSA0047638  Bloomeria crocea var. crocea R. E. Riefner Jr. 2014-5-13 14 -120 Orange City of San Clemente, Rancho San Clemente Trail, east c. 0.15 mi. from Ave. Salvador and south c. 0.1 mi. off Utility Access Rd. 239 Comment
  RSA113874  Bloomeria crocea var. crocea E. K. Balls 1956-5-17 21639 Orange Madrone Canyon, from plants native to area. grown from seed collection, June 19, 1949. Prop. No. 6309, Botanic Garden Comment
  RSA33597  Bloomeria crocea var. crocea N. C. Cooper 1944-6-4 1343 Orange San Juan Canyon, lower camp ground. 457 Comment
  SD247271  Bloomeria crocea var. crocea R. E. Riefner Jr. 2014-5-13 14 120 Orange City of San Clemente, Rancho San Clemente Trail, E ca. 0.15 mi from Ave Salvador and S cal. 0.1 mi off Utility Access Road. 238 Comment
  CAS-BOT-BC434510  Boerhavia diffusa E. Dudley 1939-8-24 s.n. Orange Unspecified Comment
  UCD140035  Bolboschoenus maritimus subsp. paludosus B. Pitzer; T. Tennant 1997-11-8 3365 Orange Crystal Cove State Park, along Moro Canyon Trail, from beginning to a point ca. 1.75 miles up the canyon. 85 Comment
  CAS-BOT-BC95425  Bowlesia incana Helen D. Geis 1902-1-1 526 Orange Santiago Creek Comment
  SFV16196  Bowlesia incana R. K. Stachelek, B. Anderson, F. Schropshire 1995-3-1 39 Orange Newport Beach, Upper Newport Bay on Back Bay Drive about 0.5 miles north of Shellmaker Island. Mesic roadside at base of coastal bluff adjacent to semi-disturbed coastal sage scrub area. Comment
  CAS-BOT-BC420395  Boykinia rotundifolia R. J. Smith 1903-6-1 79 Orange Mill Creek and Santa Ana River 914 Comment
  UCR149498  Brachypodium distachyon Scott D. White, Michael Honer 2004-5-17 10385 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
  RSA0067892  Brassica campestris R. W. Hufstader 1971-2-13 11 Orange Collected in Villa Park on Loma St. by the road. 243 Comment
  UCR186136  Brassica geniculata T. B. Salvato, Katie Kurtz 2006-10-15 1921 Orange South Coast, Irvine, San Diego Creek flood control channel, near Michelson Drive and Harvard Avenue 6 Comment
  CAS-BOT-BC30256  Brassica nigra Alice Eastwood 1934-4-29 s.n. Orange Rancho Santa Ana. 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
  CAS-BOT-BC30255  Brassica nigra Alice Eastwood 1936-4-5 s.n. Orange Santa Ana. Bixby Botanic Garden. Comment
  UCSB48205  Brassica nigra Roberts, Fred 1981-5-2 Orange Mission Viejo: Camino Capistrano; 1.7 km. N Crown Valley Parkway 49 Comment
  UCSB42715  Brassica rapa Fall, G. 1970-2-15 Orange Behind Othrays Hall I; 651 N. Titan Dr.; S of Hutwood Ave. and E of State College Blvd. Comment
  RSA0043351  Brassica rapa subsp. sylvestris David Barrios 1991-5-8 36 Orange 1500 ft. northwest of Fairmont Ave and Quail Cir., Yorba Linda. 365 Comment
  RSA650639  Brassica rapa var. rapa Daniel Truong 1991-5-5 8 Orange Irvine Regional Park, left field adjacent to main entrance, within 1/4 mile radius of closed area. 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
  RSA561494  Brickellia nevinii Steve Boyd, K. A. Boyd 1992-7-9 7656 Orange Northern Santa Ana Mountains, Upper Tin Mine Canyon along Skyline Road, 1 mile below jct with Main Divide Road Comment
  UCR142297  Brodiaea filifolia D. E. Bramlet, Sandy Leatherman 1998-5-21 2625 Orange Slope adjacent to a tributary of Segunda Deshecha Canada, c. 610 m N of the exisitng access road (Telaga Valley Dr.) and 2.9 km N of Avenida Pico. c. 1.93 km west of Cristianitos Canyon and 640 m west of Wilson Camp Rd 201 Comment
  RSA588769  Brodiaea jolonensis Fred M. Roberts 1990-5-7 4595 Orange Rancho Mission Viejo: Ridge south of Blind Canyon, TRW Lease Holding, 4.9 km NE Clemente Survey Marker. 152 Comment
  IRVC26707  Brodiaea orcuttii Mark A. Elvin 2004-6-18 3524 Orange UCI Arboretum Southern Coastal 15 Comment
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Feb 11 2021
  LA13709  Bromus carinatus LeRoy Abrams; 1903-4-18 3271 Orange San Juan Capristrano Comment
  POM265763  Bromus carinatus J. C. Roos 1937-5-10 2079 Orange East of San Juan Capistrano. Comment
  RSA734664  Bromus carinatus A. C. Sanders, Fred M. Roberts 2008-6-17 35486 Orange 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
  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
  RSA792246  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
  UCD58224  Bromus carinatus R. M. Love 1942-4-16 s.n. Orange 8 mi. east of Santa Ana. Comment
  RSA542560  Bromus carinatus var. carinatus Fred M. Roberts, Karlin G. Marsh 1987-5-14 3442 Orange NSanta Ana Moutains: Upper Trabuco Canyon, Trabuco Canyon Trail , 1.3 km NNE Los Pinos Peak 1192 Comment
  RSA159490  Bromus catharticus John H. Thomas, I. L. Wiggins 1962-6-27 308 Orange Santa Ana. Comment
  CAS-BOT-BC156005  Bromus diandrus Ira L. Wiggins 1965-9-29 20267 Orange Orange grove south of Letters and Science Building, California State College at Fullerton, near entrance to campus. Comment
  RSA590949  Bromus diandrus Fred M. Roberts 1991-5-2 4776 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
  IRVC27728  Bromus hordeaceus Mark A. Elvin 2004-5-2 3408 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7km (air) NNW UC Irvine campus center. Southern Coastal 3 Comment
  RSA697685  Bromus hordeaceus Anonymous s.n. Orange Dry hills. Orange Co. Park. Comment
  RSA732121  Bromus hordeaceus A. C. Sanders, Fred M. Roberts 2008-4-8 34723 Orange Peninsular Range: Lomas de Santiago, Loma Ridge, head of Hicks Canyon. S of Santiago Reservoir. 351 Comment
  RSA732235  Bromus hordeaceus A. C. Sanders, Fred M. Roberts 2008-4-22 35041 Orange Lomas de Santiago, valley at south end of Loma Ridge and at head of Limestone Canyon, c. 2.5 miles SW of Silverado, above spring shown on topo map. 427 Comment
  UCSB48070  Bromus hordeaceus Fritzke, S.; Roberts, Fred 1982-4-3 Orange Dana Point; hills, 1.0 km. N of Dana Hills High School; 1.9 km. W of Marco Forster Junior High School 100 Comment
  RSA542558  Bromus hordeaceus Fred M. Roberts 1987-4-21 3380 Orange Aliso Viejo: Aliso Creek, Aliso Creek bike trail, 3.0 kilmeters ENE Moulton Peak., UTM 3715500m N, 433650m E 73 Comment
  RSA650632  Bromus hordeaceus Daniel Truong 1991-5-5 13 Orange Irvine Regional Park, left field adjacent to main entrance, within 1/4 mile radius of ''closed area''. Comment
  SEINET179447 Image available Bromus hordeaceus subsp. hordeaceus Lawrence M. Booth 1932-5-12 1023 Orange Newport Bay Comment
  HSC94253  Bromus madritensis subsp. rubens D. Atwood 1993-3-27 17691 Orange Corona Del Mar State Park along Newport Coast Drive. 0 Comment
  CAS-BOT-BC161821  Bromus rubens Ira L. Wiggins 1966-3-16 20526 Orange Near entrance to Firestone Boy Scouts Reservation. Comment
  UCD59517  Bromus rubens Ira L. Wiggins 1966-3-4 20494 Orange Shoulder of Peralta Ave. near junction of Newport Freeway and Riverside Highway. Comment
  POM363950  Bromus rubens E. A. McGregor 1966-5-15 s.n. Orange Ortega Highway, between Lake Elsinore and San Juan Capistrano. Comment
  POM363952  Bromus rubens Alice Jane Merritt 1893-05 s.n. Orange Santa Anna [Santa Ana] Comment
  RSA184124  Bromus rubens I. L. Wiggins 1966-3-16 20526 Orange Entrance to Firestone Boy Scout Reservation. Comment
  RSA542557  Bromus rubens Fred M. Roberts 1989-3-17 4206 Orange Aliso-Wood Canyon Regional Park: Aliso Canyon, 3.4 kilometers SSE Moulton Peak., UTM 3711900m N, 432900m E 55 Comment
  RSA734819  Bromus sterilis A. C. Sanders, Fred M. Roberts 2008-5-6 35251 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
  RSA751157  Bromus sterilis D. E. Bramlet 2008-4-28 4248 Orange East Fork of Upper Weir Cyn, 1.2km east of the main Cyn. & 91m W of the upper boundary of Gypsum Cyn. 409 Comment
  CDA5338  Bupleurum lancifolium Mrs. L. Giddings 1955-6-23 Orange 345 Hawthorne Road, Laguna Beach. 0 Comment
  CAS-BOT-BC36894  Cakile edentula var. edentula L. R. Abrams 1917-6-23 6574 Orange Balboa. Comment
  CSUSB527  Cakile maritima Cesareo Perez 1971-5-12 S. N. Orange Huntington State Beach, Pacific Coast Highway at Brookhurst Comment
  RSA648659  Calamagrostis koelerioides R. E. Riefner 2000-6-22 20 -572 Orange NCCP North Ranch Policy Plan Area, NE property; along National Forest boundary, at powerline. 756 Comment
  SEINET6168371  Calandrinia breweri R. E. Riefner Jr. 2008-1 08 -31 Orange Irvine Ranch Reserve, North Irvine Ranch, S of Windy Ridge Rd. ca. 0.5 mi from West Fork of upper Fremont Canyon. USGS 7.5' Quad: Black Star Canyon 496 Comment
  RSA743380  Calandrinia ciliata Fred M. Roberts 2008-4-9 6860 Orange Dana Point: Dana Point Headlands, CNLM Preserve near Outlook 2, 0.7 km W Marine Institute (Dana Point Harbor). 52 Comment
  SEINET6654150  Callistemon viminalis R. E. Riefner Jr. 2006-11-14 06 -674 Orange City of Irvine, San Diego Creek, vicinity of Campus Ave at University Dr.; 0 5 Comment
  RSA723963  Callistemon viminalis R. E. Riefner Jr. 2006-11-12 06 -669 Orange City of Newport Beach, urban creek draining into San Diego Creek at confluence with Newport Bay; San Diego Creek at SR-73 overpass. 6 Comment
  SBBG133368  Callistemon viminalis R. E. Riefner Jr. 2007-4-1 07 -163 Orange Oso Crk, ca. 1.5 mi N from Paseo de Colinas St on Camino Capistrano St; City of Laguna Niguel 87 Comment
  RSA162808  Calochortus catalinae J. D. Olmsted 1959-4-23 475 Orange Hidden Ranch in Black Star Canyon, 5 miles east of Irvine Reservoir. 640 Comment
  RSA590955  Calochortus catalinae Fred M. Roberts, Cathy Novak, Dave Bontrager 1991-4-18 4770 Orange Santa Ana Mountains: c. 0.7 kilometers N junction Santiago Canyon Road and Live Oak Canyon Road, 7.7 kilomers WSW Modjeska Peak. 411 Comment
  RSA625801  Calochortus catalinae Scott D. White, Noel Davis 1998-4-24 6343 Orange Santa Ana Mountains foothills. Mission Viejo Area: Aliso Creek watershed, E of El Toro Road, just N of the junction with Valley Vista Way. Large proposed subdivision called ''Saddleback Meadow.'' 305 Comment
  RSA732080  Calochortus catalinae A. C. Sanders, Fred M. Roberts 2008-3-25 34549 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  RSA734347  Calochortus catalinae A. C. Sanders, Linda Farley, Fred M. Roberts, David E. Bramlet 2008-4-1 34639 Orange Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 396 Comment
  RSA741727  Calochortus catalinae R. E. Riefner 2008-4-15 8 -71 Orange Irvine Ranch Reserve, Fremont Canyon Conservation Easement, W Fremont Canyon, lower Coalmine SCE Rd. 301 Comment
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Jul 2 2014
  RSA749519  Calochortus catalinae Fred M. Roberts 2009-4-11 6886 Orange Lomas de Santiago: Loma Ridge, upper Dripping Springs Cyn., 0.9 km NE Bee Peak and 1.2 km WNW Dripping Springs. 448 Comment
  RSA777234  Calochortus catalinae Orlando Mistretta, Christine Mistretta 2010-4-23 5073 Orange Vicinity of Tonner Cyn. Along Southern Califonia Edison Transmission Line corridor (Segment 8, map sheet 83 per TRTP survey 2010) 338 Comment
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Feb 24 2018
  UCR209385  Calochortus catalinae Fred M. Roberts 2008-3-25 6791 Orange Loma Ridge, Upper Hicks Canyon near Haul Road, c. 4.4 km by road from Portola Parkway, and 3.2 km east northeast Rattlesnake Canyon Reservoir 269 Comment
  CAS-BOT-BC483375  Calochortus invenustus L. R. Abrams 1901-6-15 1848 Orange Santiago Peak Comment
  RSA649687  Calochortus plummerae R. E. Riefner 2000-6-27 20 -585 Orange NCCP North Ranch Policy Plan Area. E of Main Divide Road and SE from Windy Ridge cypress forest. 556 Comment
  RSA734800  Calochortus splendens A. C. Sanders, Fred M. Roberts 2008-5-6 35247 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
  SEINET4063239  Calochortus splendens G. Sphon 1959-1 325 Orange Between Upper and Lower San Juan Camps, Cleveland National Forest. 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
  UCR192096  Calochortus splendens A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35291 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir 300 Comment
  UCR52320  Calochortus splendens R. Ascanio 1988-5-25 s.n. Orange Hwy 74 c. 5 mi east of San Juan Capistrano Comment
  CAS-BOT-BC492700  Calochortus splendens Gale Sphon 1959-5-2 325 Orange Between Upper and Lower San Juan Camps, Cleveland National Forest Comment
  CAS-BOT-BC492704  Calochortus splendens Agnes M. Bowman 1899-3-1 s.n. Orange El Modena Comment
  CDA39277  Calochortus venustus R. G. Ahlefeld & R. L. Pope 1957-4-1 s.n. Orange Irvine Ranch. 0 Comment
  POM256710  Calochortus weedii var. intermedius W. Pequegnat 1940-6-14 s.n. Orange Yaeger's Meadow, Santa Ana Mountains. Comment
  RSA0013583  Calochortus weedii var. intermedius D. E. Bramlet 2008-5-22 4281 Orange Bee Cyn. Bowerman landfill site. 375m S of the Bee canyon access road. & 350m W of the active landfill. Comment
  RSA773550  Calochortus weedii var. intermedius Fred M. Roberts, Robert Allen, Ron Parsons, Mary Gerritsen 2008-6-8 7034 Orange Lomas de Santiago: Loma Ridge, West Loma Ridge Road at Calochortus Ridge, 2.5 km NNW Bee Peak. Irvine Ranch Conservancy 393 Comment
  RSA773559  Calochortus weedii var. intermedius Fred M. Roberts 2008-6-3 7025 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
  SBBG19551  Calochortus weedii var. intermedius H. F. Copeland 1938-6-29 1574 Orange back of Laguna Beach Comment
  UC1952586  Calochortus weedii var. intermedius D. Bramlet 1994-6-23 2392 Orange San Joaquin Hills. On ridgeline between Camarillo and Shady Canyons. The site is located 1.5 km west of Laguna Cyn. and 183 m SE of the Shady-Camarillo Cyn. Road junction; Laguna Beach 7.5 USGS Quadrangle 37 18 130m. N x 4 27 850m E. Comment
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Oct 17 2017
  UCR132986  Calochortus weedii var. intermedius Adrian Wolf 2000-6-22 470 Orange Santa Ana Mtns., North Ranch Policy Plan Area, East access road, Black Star Canyon 610 Comment
  CDA25245  Calycadenia tenella A. C. Sanders, Fred M. Roberts, A. O Neal 2008-5-9 35323 Orange Peninsular Range; Santa Ana Mountains; Weir Canyon, 0.3 mile west of Eastern Transportation Corridor (Highway 241) and 1.45 miles east of south end of Walnut Canyon Reservoir. Comment
  CSUSB667  Calystegia macrostegia R. P. Sunderman 1968-5-11 Orange Beach just south of Corona del Mar Comment
  RSA732151  Calystegia macrostegia A. C. Sanders, Fred M. Roberts 2008-4-22 35016 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
  SEINET12343666  Calystegia macrostegia J. F. Bright, Wyman, C. 1933-3-5 8014 Orange Santa Anna foothills Comment
  HSC6369  Calystegia macrostegia subsp. arida S. M. Clapp 1966-4-7 14 Orange Just SW of Lake Irvine 152 Comment
  RSA650822  Calystegia macrostegia subsp. arida Daniel Truong 1991-5-13 17 Orange Irvine Regional Park, left field adjacent to main entrance, within 1/4 mile radius of 'closed area' Comment
  IRVC978  Calystegia macrostegia subsp. cyclostegia B. T. Gittins 1965-3-14 Orange bluff above cove. Dana Point Headlands Comment
  RSA0126614  Calystegia macrostegia subsp. cyclostegia Fred M. Roberts 2012-4-27 7537 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
  IRVC975  Calystegia macrostegia subsp. intermedia L. McCabe 1965-4-27 Orange Corona del Mar. Newport Beach Comment
  LA50068  Calystegia macrostegia subsp. intermedia C. B. Wolf; 1931-3-6 1865 Orange 2 mi. from Orange County Park on the road to Anaheim 152 Comment
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Feb 5 2015
  POM212348  Calystegia macrostegia subsp. intermedia C. B. Wolf 1931-3-6 1865 Orange 2 mi. from Orange Co. Park on the road to Anaheim. 152 Comment
  POM278805  Calystegia macrostegia subsp. intermedia Lyman Benson 1932-3-26 3202 Orange Dana Point. 60 Comment
  POM311830  Calystegia macrostegia subsp. intermedia Lyn Whistler 1958-4-4 167 Orange Salt Creek Beach, south of Laguna on Highway 101. 15 Comment
  RSA394876  Calystegia macrostegia subsp. intermedia M. B. Dunkle 1933-4-9 3283 Orange Dana Point. Comment
  UCSB48063  Calystegia macrostegia subsp. intermedia Fritzke, Sue; Roberts, Jr., Fred 1982-4-3 Orange Dana Point Headlands; along Scenic Dr., near jct. with Cove Rd., 0.4 km. W Dana Point Harbor; 0.7 km. S Richard Henry Dana School 70 Comment
  CSUSB669  Calystegia macrostegia subsp. longiloba Donna C. Stonewall 1966-4-8 23 Orange Modjeska Canyon Modjeska Canyon Road, Modjeska Canyon 365 Comment
  RSA697156  Calystegia occidentalis subsp. occidentalis Kenneth Beard s.n. Orange Between Irvine & S.J. Capistrano. Comment
  JEPS47844  Calystegia sepium subsp. binghamiae Frank W. Peirson 1926-9-26 7086 Orange Wintersberg. Comment
  POM201717  Calystegia sepium subsp. limnophila L. M. Booth 1932-8-5 1359 Orange East of Huntington Beach. Comment
  RSA0008257  Calystegia sepium subsp. limnophila L. M. Booth 1932-6-15 1192 Orange S.E. of Huntington Beach. Comment
  RSA113268  Calystegia soldanella E. K. Balls 1955-4-4 20420 Orange Coastal Strand, mouth of Santa Ana River, W bank, Hwy 101. 3 Comment
  UCSB21666  Calystegia soldanella Keefe, Joseph 1967-3-26 Orange California Highway 1, Bolsa Bay, 0.4 mile south of Warner Avenue, Sunset Beach 1 Comment
  RSA4786  Camissonia bistorta James Snow 1932-04 s.n. Orange Cypress, Bryant Ranch near Long Beach. Comment
  CSUSB189  Camissonia cheiranthifolia subsp. suffruticosa Nancy J. Moriarty 1973-5-20 730520 3 Orange Huntington Beach; 0.5 mile north of Brookhurst Street on the west side of Pacific Coast Highway. Comment
  RSA784176  Camissonia cheiranthifolia subsp. suffruticosa J. D. Olmsted 1959-7-26 770 Orange Drainage area to Pacific Ocean. S. San Joaquin Hills. Old Moulton Ranch immediately behind about 80-90 S. La Senda St. in Three Arch Bay S of S. Laguna. 30 Comment
  SDSU3348  Camissonia confusa H. Wedberg 1958-3-29 183 Orange In grassy patch under Quersus agrifolia, across stream from Lower San Juan Campground (Hwy 74). Comment
  RSA539380  Camissonia hirtella Fred M. Roberts, Carol A. Roberts 1988-6-2 4044 Orange Santa Ana Mtns.: Maple Springs Truck Trail, 8.7 km above Silverado Gate, 2.4 km N Modjeska Pk. 352 Comment
  RSA585054  Camissonia hirtella D. Atwood 1993-3-28 17714 Orange Bolsa Chica Ecological Reserve, California Dept. of Fish and Game. 0 Comment
  RSA609006  Camissonia lewisii L. M. Booth 1932-5-12 1034 Orange Newport Beach. Comment
  RSA542490  Camissonia micrantha Fred M. Roberts, T. Sholars, B. Stechmeyer 1988-3-29 3880 Orange Santa Ana Mountains: Hot Springs Canyon, 0.5 km by road north Hwy 74, 0.9 km ESE Juan Rancho Survey Marker. 223 Comment
  UCSB48095  Camissoniopsis bistorta Roberts, Fred 1982-4-18 Orange Santa Ana Mtns: Hot Springs Canyon, 1.8 km SW Falcon Group Camp; 1.9km S Los Pinos Peak 928 Comment
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Dec 2 2014
  LA206063  Camissoniopsis cheiranthifolia subsp. cheiranthifolia Norman C. Cooper; 1944-6-3 1326 Orange Balboa Beach Comment
  UC1719511  Camissoniopsis cheiranthifolia subsp. cheiranthifolia D. Atwood 1993-3-26 17699 Orange Corona Del Mar State Park along Newport Coast Drive 0 Comment
  CAS-BOT-BC160447  Camissoniopsis cheiranthifolia subsp. suffruticosa L. R. Abrams 1917-6-23 6576 Orange Balboa Comment
  SBBG61430  Camissoniopsis cheiranthifolia subsp. suffruticosa M. N. Ackley -May-1926 756 Orange Sunset Beach 8 Comment
  UCSB22957  Camissoniopsis cheiranthifolia subsp. suffruticosa McMinn, H. 1924-7-19 Orange Sunset Beach Comment
  RSA759275  Cannabis sativa Robt. Allen, Reginald I. Durant 2008-5-9 s.n. Orange Silverado Canyon, 1.6 road miles EENE above Maple Springs Forest Gate, between Lost Woman Canyon and Spruce Canyon. 766 Comment
  IRVC9150  Capsella bursa-pastoris B. Gittins 1963-3-22 61 Orange Orange Coast College Campus. Costa Mesa Comment
  CAS-BOT-BC37592  Cardamine californica C. B. Wolf 1931-1-30 1826 Orange Santa Ana Mountains. Claymine Canyon. 304 Comment
  UCR237835  Cardamine flexuosa Mark A. Elvin 2003-2-2 2298 Orange South Coast, UC Irvine Arboretum, UCI campus SSE of intersection of Jamboree Blvd. and Campus Dr. 17 Comment
  CAS-BOT-BC384760  Cardionema ramosissimum H. F. Copeland 1938-6-28 s.n. Orange Hills back of Laguna Beach Comment
  RSA747710  Cardionema ramosissimum Fred M. Roberts 2008-4-16 6913 Orange Dana Point: Dana Point Headlands, CNLM Preserve, 0.8 km W Marine Institute, Dana Point Harbor. 60 Comment
  RSA603305  Carduus pycnocephalus Scott D. White 1997-6-12 5330 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
  UCR137449  Carduus pycnocephalus Scott D. White, Brian Leatherman 1997-6-12 5330 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
  UCSB48219  Carduus pycnocephalus Roberts, Fred 1981-6-20 Orange Dana Point; 0.7 km. NNE Dana Hills High School 67 Comment
  RSA653213  Carduus tenuiflorus David Barrios 1991-5-8 31 Orange 1500 ft. Northwest of Fairmont Ave and Quail cir. 365 Comment
  UCR210275  Carex A. C. Sanders, Fred M. Roberts, Jutta Burger 2009-10-21 37190 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hangmans Tree Canyon 379 Comment
  UCR210292  Carex A. C. Sanders, Fred M. Roberts, Jutta Burger 2009-10-21 37193 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hangmans Tree Canyon 379 Comment
  HSC46673  Carex globosa Christopher Davidson 1977-5-18 5621 Orange Santa Ana Mts. Cleveland Nat. Forest. Bear Springs 1220 Comment
  CAS-BOT-BC119005  Carex pellita Helen D. Geis 1902-4-1 s.n. Orange Santa Ana. Peat lands. Comment
  CAS-BOT-BC118485  Carex praegracilis Helen D. Geis 1902-4-1 567 Orange Unspecified Comment
  CAS-BOT-BC118505  Carex praegracilis Helen D. Geis 1902-4-1 503 Orange Santa Ana Comment
  CAS-BOT-BC118487  Carex praegracilis Helen D. Geis 1902-4-1 s.n. Orange Peat Lands Comment
  CAS-BOT-BC118494  Carex praegracilis Helen D. Geis 1902-4-1 s.n. Orange Santa Ana, Peat lands Comment
  CAS-BOT-BC118507  Carex praegracilis Helen D. Geis 1902-4-1 502 Orange Ditch banks Comment
  UCSB57557  Carex praegracilis Roberts, Fred 1984-4-14 Orange Santa Ana Mtns.: Chiquito Basin, San Juan Trail; 2.1 km. SW Blue Jay Campground; 3.0 km. S Los Pinos Pk. 825 Comment
  UCSB57548  Carex schottii Roberts, Fred 1984-3-24 Orange Santa Ana Mtns.: San Juan Canyon, Hwy. 74; 2.4 km. ENE San Juan Guard Station; 0.3 km. W Bench Mark 1100 315 Comment
  UCR174019  Carex spissa A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33049 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
  IRVC26693  Carex spissa Mark A. Elvin 2004-4-4 3230 Orange UCI Arboretum Southern Coastal 15 Comment
  UCSB48106  Carex spissa Fritzke, S.; Roberts, Fred 1982-4-3 Orange Santa Ana Mtns.: Lower Hot Springs Canyon; Lazy W Road; 2.4 km. N by road; San Juan Guard Station; 1.4 km. NNW Juan Rancho Survey Mark 240 Comment
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Mar 18 2011
  CAS-BOT-BC116768  Carex subfusca LeRoy Abrams 1903-6-25 3876 Orange Borders of Cuyamaca Lake Comment
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Dec 13 2020
  RSA751160  Carex triquetra D. E. Bramlet 2008-5-15 4272 Orange Upper Borrego Cyn. 152m east of the access road & 1.7km west of Santiago Cyn Road 450 Comment
  SEINET10874602  Carpobrotus aequilaterus David B. Dunn 1971-8-13 Dunn 18123 Orange Cultivated plants vicinity of Laguna Beach. Comment
  RSA113267  Carpobrotus edulis E. K. Balls 1955-4-4 20421 Orange Coastal Strand. W end of Newport Beach. Hwy 101. 3 Comment
  UCR11220  Carthamus baeticus D. O. Clark 1969-7-14 s.n. Orange 2 mi NE of Brea Comment
  POM202720  Castilleja affinis L. M. Booth 1932-5-19 1074 Orange Newport Bay. Comment
  UCR106285  Castilleja affinis B. G. Pitzer, M. Georgiady 1997-4-5 3075 Orange San Joaquin Hills, Crystal Cove State Park, along 'No Dogs' Trail (from parking area, along western bottom edge of ridge between Muddy Canyon & Moro Canyon), to just below intersection with 'Poles' trail 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
  SDSU9686  Castilleja affinis subsp. affinis Curtis B. Kendall 1994-5-18 18 VI94B Orange County open-space, 100 meters west fo entrance gate to the National Audubon Society Starr Ranch Sanctuary, on south edge of access road. 317 Comment
  UC1424837  Castilleja affinis subsp. affinis C. W. Tilforth and Dorothy Tilforth 1977-3-6 1259 Orange ca 10 mi w Corona (large wash w of Weir Canyon, s side of Santa Ana River) 152 Comment
  UCSB12538  Castilleja affinis subsp. affinis Whittington, M. 1962-4-20 Orange Modjeska grade road; between Modjeska and Trabuco Canyon Comment
  SD247731  Castilleja affinis subsp. affinis R. F. Thorne, C. W. Tilforth, E. W. Lathrop. 1977-4-27 49649 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak] Comment
  RSA658309  Castilleja angustifolia Steve Teh, Marie Gabbard 1994-4-28 18 Orange Modjeska Grade Rd. 1/2 mile back on fire rd. Comment
  UCR228774  Castilleja exserta Dick Newell, Don Millar 2011-5-10 152 Orange Peninsular Range; Santa Ana Mtns., above east side of Fremont Canyon on service road just below Lakeview Rd. 455 Comment
  UC673435  Castilleja exserta subsp. exserta Herbert L. Mason 1926-4-25 2935 Orange 5 mi s Laguna Comment
  RSA0043344  Castilleja foliolosa Nancy J. Mann 1976-5-20 s.n. Orange Harding Canyon, Santa Ana Mtns. Comment
  UCSB56517  Castilleja foliolosa Anderson, J. 1966-3-7 Orange San Joaquin Hills; near bottom or Moro Canyon 91 Comment
  RSA0045577  Castilleja parviflora Minor Warne 1934-03 s.n. Orange Gypsum Canyon. Comment
  RSA542652  Caulanthus heterophyllus Fred M. Roberts 1988-3-15 3857 Orange Rancho Mission Viejo; Verdugo Canyon, 1.3 km SSW Lucan Survey Marker 201 Comment
  RSA749793  Caulanthus heterophyllus D. E. Bramlet 2008-4-1 4145 Orange Ridgeline in Upper Hicks Canyon, 162m S of the Haul Road. 346 Comment
  UCR191365  Caulanthus heterophyllus A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34623 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
  IRVC24790  Caulanthus lasiophyllus Karlin G. Marsh 1989-3-4 Orange Lomas Ridge, ridge between Hicks and Rattlesnake Canyons. Lomas de Santiago 210 Comment
  RSA0054976  Ceanothus Keith E. Hoffmaster 1934-7-15 108 Orange Santa Ana mts. (Santiago can). Comment
  CAS-BOT-BC48492  Ceanothus crassifolius Helen D. Geis 1902-4-1 s.n. Orange Santiago Canyon Comment
  RSA0029943  Ceanothus crassifolius Fred M. Roberts, Sandy Leatherman 2013-2-13 7721 Orange Santa Ana Mountains: Ridge south of central Santiago Canyon, near Joplin Trail, 3.7 km SE Modjeska (town). 800 Comment
  RSA304750  Ceanothus crassifolius James R. Shevock 1971-2-25 197 Orange Mojeska Cyn, Santa Ana Mts. 305 Comment
  SD41968  Ceanothus crassifolius Darley F. Howe 1947-4-29 Orange Santa Ana Mts. Comment
  UCR220303  Ceanothus crassifolius Dick Newell, Don Millar 2010-3-2 009 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lakeview Rd. at junction with Edison Rd., c. 1.9 mi. NE of Irvine Lake 625 Comment
  CAS-BOT-BC50807  Ceanothus integerrimus P. C. Everett 1935-6-19 7236 Orange Santa Ana Mts., Trabuco Canyon, 1 mi. below summit of Truck Trail 1005 Comment
  LA44871  Ceanothus leucodermis W. Pequegnat; 1938-9-3 sn Orange Santa Ana Mountains, Ortega Rd 548 Comment
  SBBG4369  Ceanothus leucodermis M. Van Rensselaer 1941-5-30 1674 Orange summit of Ortega Hwy (St Hwy 74) 762 Comment
  RSA542421  Ceanothus megacarpus var. megacarpus Fred M. Roberts 1988-3-9 3341 Orange South Laguna; Hobo Canyon, ca. 0.8km NE Goff island. 49 Comment
  UC1070883  Ceanothus megacarpus var. megacarpus A. Lewis 1934-3-1 366 Orange 2.5 mi w Sierra Peak; Corona quad. 609 Comment
  UC1070886  Ceanothus megacarpus var. megacarpus H. E. Norton and J. B. Spring 1931-3-28 50 Orange sw of Niguel Hill; Corona quad. 914 Comment
  UCR139198  Ceanothus oliganthus var. orcuttii Percy C. Everett 1935-6-19 7234 Orange Santa Ana Mtns., Main Divide Motorway, junction with Trabuco Canyon Truck Trail 1220 Comment
  UC1071194  Ceanothus palmeri A. Lewis Mar 1934 364 Orange head of Silverado Canyon Corona Quad., head of Silverado Canyon Comment
  CAS-BOT-BC51707  Ceanothus papillosus E. W. Lathrop 1976-11-1 7602 Orange Pleasant Peak, Main Divide truck trail, north slope 1219 Comment
  RSA716773  Ceanothus papillosus var. roweanus Fred M. Roberts, Michelle Balk, Robert Allen, Chris Barnhill 2004-6-19 6064 Orange Snta Ana Mtns.: Holy Jim Cyn.: Holy Jim Trail, 2.0 km SE summit of Santiago Peak. 988 Comment
  LA42099  Ceanothus spinosus W. Pequegnat; 1938-9-3 sn Orange Ortega Rd 365 Comment
  RSA17567  Ceanothus spinosus Carl B. Wolf 1936-6-17 7950 Orange Along Ortega Hiway, San Juan canyon, 0.2 mi. W. of Riverside Co. line. 274 Comment
  RSA698615  Ceanothus spinosus Mabel Harvey s.n. Orange Silverado Canyon Comment
  UC1071388  Ceanothus spinosus A. E. Wieslander 1934-3-29 448 Orange San Juan Creek 304 Comment
  RSA3170  Ceanothus tomentosus subsp. olivaceus Carl B. Wolf 1932-3-8 2693 Orange Santiago Creek, 1 mil. E. Villa Park, W. base Santa Ana Mts. 152 Comment
  RSA1445  Ceanothus tomentosus var. olivaceus J. T. Howell 1929-2-11 1224 Orange trail from [Claymine] Canyon to Sierra Peak, Santa Ana Mts. 335 Comment
  CDA7246  Centaurea diluta G. Jackson 1973-12-11 Orange Villa Park Dam basin, Orange Park Acres. 0 Comment
  RSA735173  Centaurea melitensis A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35276 Orange Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir. 300 Comment
  UCR154343  Centaurea repens Mark A. Elvin 2004-5-2 3404 Orange Southern Coastal, Irvine: San Joaquin Freshwater Marsh, near Campus and University Drives; 1.7 km (air) NNW UC Irvine campus center 3 Comment
  CDA7330  Centaurea solstitialis Robert L. Pope 1957-9-5 Orange 0 Comment
  UC1280312  Centaurium venustum John M. Tucker 1941-5-30 259 Orange 200 yds w San Juan Guard Station (along Ortega Highway); San Juan Canyon Comment
  IRVC14862  Centaurium venustum Gordon A. Marsh, Karlin G. Marsh 1976-7-8 s.n. Orange Santa Ana Mtns: Lower San Juan Picnic Grounds near Hwy 74 [Ortega Hwy]. Peninsular Ranges Comment
  RSA16384  Centaurium venustum E. R. Johnson 1935-6-11 7132 Orange Rancho Santa Ana, Santa Ana Canyon, grain field west of grapefruit orchard. 137 Comment
  RSA0040038  Centranthus ruber Anonymous 1933-10-13 s.n. Orange Santa Ana. Comment
  RSA759266  Centranthus ruber Robert Allen, Reginald Durant 2008-5-9 s.n. Orange Silverado Canyon, USFS Maple Springs Forest Gate 562 Comment
  CAS-BOT-BC288843  Centromadia parryi subsp. australis David D. Keck 1933-9-17 2524 Orange Westminster Comment
  UC897740  Centromadia parryi subsp. australis Louis C. Wheeler 1932-6-25 849 Orange 5 mi w Santa Ana 22 Comment
  UCR237987  Centromadia parryi subsp. australis D. E. Bramlet 2008-9-17 4306 Orange South Coastal Plain, Upper Newport Bay, West Mesa, 76 m east of Irvine Ave. & 305 m south of University Dr. 20 Comment
  UCSB52862  Centromadia parryi subsp. australis Roberts, Jr., Fred 1985-9-17 Orange Irvine; lot between Walnut Ave., Harvard Ave. and Peter's Creek Channel; UTM 3730050mN, 426250mE 20 Comment
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Feb 22 2019
  UCR191015  Cerastium glomeratum A. C. Sanders, Fred M. Roberts 2008-4-22 35032 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Limestone Canyon, c. 2 miles SW of Silverado 396 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
  RSA172271  Cercocarpus betuloides Robert F. Thorne 1963-7-26 32844 Orange Tin Mine Canyon above Beek's Spring, Trabuco District, Cleveland National Forest 854 Comment
  RSA617695  Cercocarpus betuloides Scott D. White 1996-12-20 4637 Orange Above Modjeska Canyon: Proposed water tank site. 427 Comment
  RSA660285  Cercocarpus betuloides Orlando Mistretta 1992-6-2 452 Orange Vicinity of Sierra Peak. (Historical Locality). On old roadcut heading down to power lines at 2280'. Comment
  UCR274177  Chaenactis artemisiifolia Dick Newell, Don Millar 2016-5-24 426 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Merkel Spur Trail at Limestone Ridge Road, 0.13 mile south of Cactus Canyon Road 417 Comment
  CAS-BOT-BC279499  Chaenactis artemisiifolia Steve Boyd; Tim Ross 1992-5-20 7454 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of the wilderness in Lucas Canyon along a new section of trail heading up major side canyon northward to Sitton Peak Road (7S09) 457 Comment
  RSA695494  Chaenactis glabriuscula Minor Warne 1934-4-28 s.n. Orange Ladd Canyon-Santa Ana Mts Comment
  UCR157714  Chaenactis glabriuscula Adrian Wolf 1998-5-15 294 B Orange South Coast, Dana Point Headlands, north of Scenic Dr. 67 Comment
  RSA731964  Chaenactis glabriuscula A. Sanders, Fred M. Roberts 2008-4-22 34989 Orange Lomas de Santiago, lower Hicks Canyon haul road, just above Irvine Ranch gate and road to cement plant, c. 1 mi. NE of Rattlesnake Reservoir. 213 Comment
  LA203102  Chaenactis glabriuscula var. glabriuscula Lawrence M. Booth; 1932-5-18 1056 Orange Newport Bay Comment
  RSA638968  Chaenactis glabriuscula var. glabriuscula Valerie L. Soza, LeRoy Gross 1999-6-8 499 Orange Santa Ana Mountains: Santiago and Modjeska Canyons, above Tucker Wildlife Sanctuary, above the town of Modjeska 518 Comment
  RSA747702  Chaenactis glabriuscula var. glabriuscula Fred M. Roberts 2008-5-16 6975 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
  SEINET2028558 Image available Chaenactis glabriuscula var. orcuttiana Fay A. MacFadden 1931-3-1 2969 Orange Laguna Beach Comment
  RSA0008379  Chaenactis glabriuscula var. orcuttiana I. M. Johnston 1924-7-10 s.n. Orange 1/2 mile S mouth Aliso Canyon. Comment
  IRVC29873  Chamaesyce Mark A. Elvin, D. Kelch 2006-12-9 5301 Orange Newport Backbay; Big Canyon, lower end. Southern Coastal 3 Comment
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Jul 17 2015
  IRVC29724  Chamaesyce albomarginata Mark A. Elvin, Barry S. Nerhus 2006-11-4 5255 Orange Huntington Beach; 1.5 km SW of Wintersburg, SW of jct Slater and Goldenwest; Shipley Nature Center. Southern Coastal 1 Comment
  UCSB52463  Chamaesyce polycarpa Roberts, Fred 1982-12-13 Orange Laguna Beach; Upper Park Canyon, west flank of Temple Hill, 1.8 km. NE Thurston School; 0.9 km. WNW Top of the World School 262 Comment
  RSA542539  Chamaesyce polycarpa var. polycarpa Fred M. Roberts, Dar A. Roberts 1989-3-22 4221 Orange Aliso-Wood Canyons Regional Park: Wood Canyon, 3.6 km S Moulton Peak. 43 Comment
  RSA562820  Chamaesyce polycarpa var. polycarpa Steve Boyd 1992-5-20 7473 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
  IRVC3124  Cheilanthes clevelandii A. S. Boughey 127 Orange [San Juan Canyon], Ortega Hwy, 1mi E San Juan Guard Sta. Santa Ana Mountains Comment
  UCSB48215  Cheilanthes covillei Roberts, Fred 1981-5-3 Orange Santa Ana Mtns.: Lower Hot Springs Canyon, 0.7km by road N of San Juan Guard Station 244 Comment
  RSA797474  Cheilanthes newberryi R. F. Thorne 1977-11-21 49987 Orange Santa Ana Mountains: tributary canyon to San Juan Canyon about 2 miles above San Juan Fire Station 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
  RSA685772  Cheilanthes newberryi T. R. Pray 1961-2-14 1824 Orange San Juan Canyon along Ortega Hwy, near bridge just west of Cleveland National Forest Comment
  UC1543076  Chenopodium Donald G. Nelson 1936-5-29 428 Orange S. Grand Ave. s Buena Park; Bob Barnes Ranch Comment
  IRVC14987  Chenopodium album Anonymous 1976-10-28 Orange Nieblas School. Fountain Valley Comment
  RSA725963  Chenopodium album R. E. Riefner 2006-10-8 06 -484 Orange South Coast: Irvine, San Diego Creek near 405 Freeway, between 405 and Laguna Rd. 51 Comment
  RSA5936  Chenopodium album C. B. Wolf 1932-7-7 3838 Orange Bryant Ranch, along drainage ditch on Bixby Ave.; 100 ft. W. of Hansen Rd.; 100 ft W of corner of NE 1/4 9 Comment
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Apr 9 2014
  RSA696210  Chenopodium album Keith E. Hoffmaster 1927-5-18 s.n. Orange Santa Ana. Comment
  UC536960  Chenopodium ambrosioides Lawrence M. Booth 1932-7-25 1312 Orange 1 1/2 mi from ocean; Santa Ana River Comment
  UCR186133  Chenopodium ambrosioides T. B. Salvato, Katie Kurtz 2006-10-15 1920 Orange South Coast, Irvine, San Diego Creek flood control channel, near Michelson Drive and Harvard Avenue 6 Comment
  RSA234523  Chenopodium ambrosioides James Henrickson 1970-8-22 5298 Orange 2.5 miles NNW of Huntington Beach 0 Comment
  UCR210369  Chenopodium berlandieri T. B. Salvato, Billy Deane 2006-10-16 1939 Orange South Coast, Irvine, San Diego Creek flood control channel, between Michelson Drive and the 405 FWY 12 Comment
  POM18120  Chenopodium berlandieri var. sinuatum P. A. Munz 1923-9-7 7746 Orange Santiago Peak. 1723 Comment
  RSA262  Chenopodium californicum J. T. Howell 1928-2-25 840 Orange Near Bee Canyon, Rancho Santa Ana. 152 Comment
  UCR209380  Chenopodium californicum Fred M. Roberts, Linda Farley 2008-3-28 7035 Orange Santa Ana Mountains, Upper Weir Canyon, Irvine Ranch Conservancy, east fork along ridge just west of SR 241, 3.4 km east of Robber's Peak 437 Comment
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Mar 23 2020
  UCR136806  Chenopodium macrospermum A. C. Sanders, Mark A. Elvin 2003-11-9 27366 Orange Southern Coastal Slope, Irvine, San Joaquin Marsh adjacent to UCI Arboretum, UCI campus near intersection of Jamboree Blvd. and Campus Dr. 2 Comment
  IRVC21667  Chenopodium multifidum R. L. Allen 1983-6-1 A649 Orange southwest of I5 at Sand Canyon Ave. near old dwellings on Burt Lane; a naturalized weed. Irvine Comment
  UCR192988  Chenopodium multifidum A. C. Sanders, Fred M. Roberts 2008-6-17 35476 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Agustine staging area near Limestone Canyon Rd. gate at Santiago Cyn Rd. 260 Comment
  IRVC399  Chenopodium murale L. Lewton 1965-4-19 Orange Corona del Mar High School. Newport Beach Comment
  RSA165143  Chenopodium murale Mark Parratt 1962-4-11 139 Orange Corona del Mar beach head. 4 Comment
  RSA749362  Chenopodium murale Fred M. Roberts 2008-4-15 6901 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
  UCR193780  Chenopodium murale A. C. Sanders, Fred M. Roberts 2008-7-3 35686 Orange Peninsular Range; Santa Ana Mtns., upper Weir Canyon, along Windy Ridge Rd. at huge sandstone boulder (visible on Google Earth), 1.3 mi. SE of Walnut Canyon Reservoir 314 Comment
  RSA7043  Chlorogalum pomeridianum Carl B. Wolf 1932-7-2 3828 Orange Carbon Canyon, 0.5 mile above La Vida Springs. 244 Comment
  UC729551  Chlorogalum pomeridianum var. pomeridianum Carl B. Wolf 1932-7-2 3828 Orange hillside 1/2 mi above La Vida Springs; Carbon Canyon 243 Comment
  RSA0036641  Chlorogalum pomeridianum var. pomeridianum Robt. Allen 2009-3-29 s.n. Orange Peninsular Ranges; Santa Ana Mountains region: Near Santiago Canyon. Rancho Sonado (Orange County Department of Education). Entrance is along Santiago Canyon Road, 0.23 miles NW of turnoff to Williams Canyon, 1.55 air miles SE of turnoff to Silverado, Canyon. Wild Bill Trail. 364 Comment
  CAS-BOT-BC255248  Chorizanthe staticoides Clare B. Hardham 1962-4-5 8954 Orange Hills above San Clemente Comment
  CAS-BOT-BC255253  Chorizanthe staticoides H. F. Copeland 1938-6-28 s.n. Orange Hills back of Laguna Beach Comment
  RSA392684  Chorizanthe staticoides Louis C. Wheeler 1932-6-25 856 Orange Newport Bay. 3 Comment
  RSA542527  Chorizanthe staticoides Fred M. Roberts, Kathy Keane 1988-5-25 3992 Orange Rancho Mission Veijo: Lower Canada Chiquita, 2.0 kilometers SSE Medium Rancho Survey Marker. 91 Comment
  RSA542528  Chorizanthe staticoides Fred M. Roberts, G. A. Marsh, K. G. Marsh 1988-4-26 3942 Orange San Joaquin Hills: Pelican Hill, 0.5 kim SE Summit. 165 Comment
  RSA542530  Chorizanthe staticoides Fred M. Roberts 1987-3-30 3325 Orange Lomas De Santiago: Lomas Ridge, east fork Upper Serrano Canyon, 3.1k SE Bolero Lookout. 394 Comment
  RSA542532  Chorizanthe staticoides Fred M. Roberts 1988-5-13 3966 Orange Lomas de Santiago: Loma Ridge, Upper Limestone Canyon near spring, 2.3 km NW Bolero Lookout. 439 Comment
  UCR79246  Chorizanthe staticoides Steve Boyd, T. S. Ross 1992-5-19 7422 Orange Santa Ana Mtns., San Mateo Canyon Wilderness Area. Western edge of the wilderness along Lucas Canyon Trail from access road to Rancho Carrillo (7S06) north into Aliso Canyon 457 Comment
  RSA0004910  Chorizanthe staticoides var. elata P. A. Munz 1923-6-14 7085 Orange Glen dry trail to Santiago Peak , Santa Ana Mountains, dry ridge in chaparral belt. 1463 Comment
  UCR277171  Chrysanthemoides monilifera subsp. monilifera R. E. Riefner Jr. 2012-2-22 12- 40 Orange South Coast, city of Laguna Beach, south of Goff Island, Montage Resort, Treasure Island Park area, west of Pacific Coast Hwy 7 Comment
  RSA741480  Chrysanthemum coronarium R. E. Riefner 2008-5-22 09 -113 Orange Near City of Orange, Santiago Creek, vicinity of Hangman's Tree Canyon, Santiago Creek Rd., Irvine Ranch Reserve, Management Area 15. Comment
  RSA0070675  Cirsium occidentale var. californicum P. A. Munz 1949-5-26 13372 Orange Head of Claymine Canyon, north end of Santa Ana Mts. 731 Comment
  CAS-BOT-BC285584  Cirsium occidentale var. occidentale John Thomas Howell 1927-6-6 2447 Orange Santa Ana River bottom, Santa Ana Canon [Canyon] 152 Comment
  CDA7427  Cirsium vulgare Jack Hill 1957-7-3 Orange 0 Comment
  UCR192105  Clarkia bottae A. C. Sanders, Fred M. Roberts, Amber O'Neal, D. E. Bramlet 2008-5-9 35307 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along old dirt road, c. 1.25 mi. ESE of Walnut Cyn Reservoir 340 Comment
  UCR26961  Clarkia deflexa E. W. Lathrop 1966-5-13 6293 Orange Santa Ana Mountains, 5 mi east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest 400 Comment
  RSA448295  Clarkia purpurea subsp. quadrivulnera N. C. Cooper 1944-6-4 1332 Orange San Juan Canyon, lower camp ground. 457 Comment
  SEINET7067523  Clarkia purpurea subsp. quadrivulnera A. G. Vestal 1947-6-12 s.n. Orange Canyon Road to Trabuco Canyon. Coordinate datum: NAD27. UTM Zone 11, 444428mE, 3723792mN. Comment
  UCSB48212  Clarkia purpurea subsp. quadrivulnera Roberts, Fred 1981-5-3 Orange Santa Ana Mtns; Hot Springs Cyn; 0.8 km by road N of San Juan Guard Station 256 Comment
  UCR227632  Clarkia rhomboidea Robt. L. Allen 2003-6-22 12309 Orange Santa Ana Mountains, west-facing upper slope of Santiago Peak, along North Main Divide Road, c. 0.10 air mi northwest of Santiago Peak summit 1674 Comment
  HSC17702  Claytonia perfoliata subsp. mexicana S. M. Clapp 1966-4-10 35 Orange 10 mi. into Silverado Canyon 183 Comment
  RSA638959  Claytonia perfoliata subsp. perfoliata Valerie L. Soza, LeRoy Gross 1999-6-7 487 Orange West side of Modjeska Peak, along Main Divide Road. 1448 Comment
  CAS-BOT-BC402194  Clematis lasiantha R. F. Thorne; C. W. Tilforth; E. W. Lathrop 1977-4-27 49689 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  CAS-BOT-BC91328  Clematis lasiantha P. C. Everett 1935-6-18 7218 Orange Santa Ana Mountains, summit of Santiago Peak. 1731 Comment
  POM305798  Clematis lasiantha Henry J. Ramsey, Henry J. Ramsey 1937-4-2 1061 Orange Capistrano Canyon. Comment
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Dec 17 2011
  POM293090  Cleome isomeris Lyman Benson 1946-4-27 12051 Orange Corona Del Mar; Drainage area: Pacific Ocean. 15 Comment
  RSA607432  Cleome isomeris L. C. Wheeler 1932-6-25 868 Orange Newport Bay. 3 Comment
  UCR133708  Collinsia heterophylla N. C. Cooper 1944-6-4 1361 Orange Peninsular Range; Santa Ana Mtns., San Juan Canyon, lower camp ground '1500 ft. 396 Comment
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Apr 24 2011
  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
  UCSB48210  Collinsia heterophylla var. heterophylla Roberts, Fred 1981-5-3 Orange Hot Springs Canyon; 1.3km NNE San Juan Guard Station; Santa Ana Mtns 276 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
  CHSC116493  Comarostaphylis diversifolia subsp. diversifolia R. F. Thorne; E. W. Lathrop, W. Wisura 1977-7-8 49607 Orange Santa Ana Mountains: Rocky ravine tributary to San Juan Canyon, along Ortega Highway(74) about 2 miles above San Juan Fire Station. Comment
  POM306305  Conium maculatum Henry J. Ramsey, Henry J. Ramsey 1938-6-5 1391 Orange Laguna Beach, Irvine Comment
  SD127479  Conium maculatum Reid Moran, Gordon Marsh and Jack Reveal 1977-6-13 24237 Orange Willow Canyon, tributary of Laguna Canyon 124 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
  CDA32186  Convolvulus arvensis T. McCrainie, Mark A. Elvin 2006-9-23 8 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
  CSUSB645  Convolvulus arvensis Kenneth Hibberd 1966-5-8 660508 4 Orange Frontage Road, one mile north of El Toro Road along Highway 101, Santa Ana Freeway. 121 Comment
  RSA5875  Convolvulus arvensis C. B. Wolf 1932-9-13 4024 Orange 3/10 mi. W of Los Alamitos Blvd. and 200 ft. So. of Bryant Ave. Comment
  IRVC15625  Convolvulus simulans Karlin G. Marsh 1977-6-8 Orange south of UCI campus near parking lot 18. Irvine Comment
  RSA38434  Convolvulus simulans E. L. Paddock 1943-5-3 s.n. Orange Graham & Loftus Oil Corp., 1 mile E of Brea Comment
  UCR85393  Convolvulus simulans H. Camp 1995-4-14 s.n. Orange Peninsular Range; Santa Ana Mtns., Caspers Park, 7 mi. east of San Juan Capistrano, west of Bell Creek 183 Comment
  IRVC29827  Conyza canadensis Tom McCrainie, Mark A. Elvin 2006-9-23 1 Orange San Joaquin Marsh Freshwater Marsh, UC Natural Reserve; SW edge, along San Diego Creek, N of University Drive, E Hwy 73. Southern Coastal 2 Comment
  RSA348137  Conyza canadensis I. L. Wiggins 1965-10-24 20286 Orange At corner of Yorba Linda and State College Blvds., Fullerton. Comment
  RSA731653  Conyza canadensis Fred M. Roberts 2007-10-29 6626 Orange Laguna Beach: Temple Hill, Nyes Place, ca. 0.2 km S Moulton Meadows Park. 232 Comment
  RSA743521  Conyza canadensis Fred M. Roberts, Carol A. Roberts 2008-9-28 7113 Orange Dana Point: Dana Point Headlands, CNLM Preserve near NE Gate, 0.5 km W Marine Institute (Dana Point Harbor). 75 Comment
  RSA835  Conyza canadensis J. T. Howell 1927-9-24 743 Orange Santa Ana Botany Garden 152 Comment
  IRVC29835  Conyza coulteri Tom McCrainie, Mark A. Elvin 2006-9-23 9 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7km (air) NNW UC Irvine campus center. Southern Coastal 3 Comment
  POM4592  Conyza coulteri I. M. Johnston 1918-9-3 2148 Orange Laguna Canyon (at the lakes) 107 Comment
  RSA254979  Cordylanthus maritimus C. W. Tilforth 1975-9-3 1040 Orange Northeast shoreline of Upper Bay, Newport Beach Comment
  UCD169163  Cordyline R. E. Riefner Jr. 2012-11-6 12- 532 Orange South Coast,City of Newport Beach, Newport Bay, North Star Beach, near Newport Aquatic Center, White Cliffs Drive/North Star Lane. 9 Comment
  JEPS17159  Corethrogyne filaginifolia Rimo Bacigalupi 1957-4-3 5787 -A Orange 6 mi s of Irvine; Us Highway 101 Comment
  RSA715701  Corethrogyne filaginifolia var. virgata Fred M. Roberts, Robert L. Allen 2005-10-15 6312 Orange entrance to Falcon Group Camp, 2.1km ESE Los Pinos Peak and 0.3km NE campground. 1008 Comment
  UCR102007  Coronopus didymus B. G. Pitzer 1997-3-25 3032 Orange San Joaquin Hills, Crystal Cove State Park, Pelican Point Area, on bluffs immediately above beach, along trail that winds around restoration area and down to beach. 30 Comment
  IRVC24483  Cortaderia selloana Fred M. Roberts, G. A. Marsh 1986-2-28 2603 Orange Lateral to English Canyon along Vista Del Lago; 3.4km ENE El Toro Fire Station, in ravine at base of north-facing slope. Mission Viejo 236 Comment
  UC1292312  Cotula australis C. L. Hitchcock and C. V. Muhlick 1964-3-17 23067 Orange 8 mi e Yorba Linda; Santa Ana Canyon Comment
  UCSB52470  Cotula australis 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 60 Comment
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Jan 25 2020
  CAS-BOT-BC287220  Cotula australis Ira L. Wiggins 1966-2-12 20434 Orange N side of La Palma Ave near Harbor Blvd, Anaheim Comment
  CAS-BOT-BC287224  Cotula australis Ira L. Wiggins 1966-2-5 20423 Orange Fairgrounds, Costa Mesa Comment
  RSA0045565  Cotula australis Keith E. Hoffmaster 1927-2-12 1143 Orange Santa Ana. Comment
  UCR106873  Cotula coronopifolia Michael A. Patten, Steve Myers 1993-3-9 s.n. Orange Tustin, Marine Corps Air Station 107 Comment
  UCR207795  Cotula coronopifolia O. F. Clarke 2004-4-5 s.n. Orange South Coast, Newport Back Bay 3 Comment
  RSA697177  Cotyledon laxa Kenneth Beard 1934-05 s.n. Orange Ladd Canyon. Comment
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Dec 20 2019
  SD142785  Cotyledon orbiculata var. oblonga Reid Moran 1993-6-30 31095 Orange South slope above 1500 Coast Highway, Newport Beach. 14 Comment
  CAS-BOT-BC427768  Crassula connata Helen D. Geis 1902-1-1 527 Orange Santiago Cr. Comment
  IRVC25399  Crassula connata Fred M. Roberts 1987-4-3 3338 Orange San Joaquin Hills; Irvine; central Shady Canyon, 2.9km NE Signal Hill. Central coastal 107 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
  RSA542645  Cressa truxillensis Fred M. Roberts, Kathy Keane, Carol A. Roberts 1988-5-25 4580 Orange Ranch Mission Viejo: Lower Canada Chiquita, 2.4 kilometers SSE Medium Rancho Survey Mark. 69 Comment
  IRVC16606  Cressa truxillensis Gordon A. Marsh 1970-7-17 Orange Santa Ana River, south bank near Coast Hwy. Newport Beach Comment
  POM17485  Croton californicus P. A. Munz 1923-4-1 6913 Orange 2 miles north of Laguna. 5 Comment
  RSA794326  Croton californicus Justin M. Wood 2010-3-31 1443 Orange Santa Ana River floodplain, 0.25 miles north of Coal Canyon wildlife corrridor, west of Green River Golf Course on bluff south of the river. 122 Comment
  RSA641  Cryptantha clevelandii J. T. Howell 1927-7-22 460 Orange North of Botany Garden, Rancho Santa Ana. 274 Comment
  UCR150922  Cryptantha clevelandii Valerie Soza, LeRoy Gross 1999-6-7 479 Orange Santa Ana Mountains, West side of Modjeska Peak, along Main Divide Road 1448 Comment
  RSA0094682  Cryptantha clevelandii var. florosa G. R. Campbell 1951-5-30 16096 Orange San Juan Canyon, Ortega Hwy, 4 mi. inside west border of Cleveland National Forest. 152 Comment
  IRVC255  Cryptantha intermedia C. Hinesly Orange Trabuco Canyon Santa Ana Mountains Comment
  RSA683170  Cryptantha intermedia Scott D. White, Amanda Duchardt 2003-4-10 9022 Orange Ridges & east-facing canyons above Trampas Canyon. 122 Comment
  RSA734012  Cryptantha intermedia A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34621 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir. 366 Comment
  UC1063976  Cryptantha intermedia A. Lewis 1934-3-1 386 Orange Borrego Canyon Corona Quad. 426 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
  UCR5137  Cryptantha intermedia Barbara T. Gittins, O. F. Clarke 1966-3-19 897 Orange Pacific slope, Irvine Ranch, east of University of California Irvine campus, Newport Beach 91 Comment
  SD87710  Cryptantha intermedia var. johnstonii F. W. Peirson 1924-5-31 Orange 5 miles south of Laguna Comment
  RSA0127598  Cryptantha microstachys Fred M. Roberts, Diane Etchison 2016-3-22 8028 Orange Lomas de Santiago: west of Irvine Lake and north of Santiago Canyon Road, southeastern slope of Hill 1332 near toe of slope, about 1.9km S Irvine Lake Dam spillway. 263 Comment
  RSA542659  Cryptantha microstachys Fred M. Roberts, K. Keane 1988-5-26 4005 Orange Rancho Mission Viejo: tributary to Trampas canyon, along Christianitos rd., 2.4 km ESE Viejo Survey mark. 128 Comment
  UCR209382  Cryptantha microstachys Fred M. Roberts, Linda Farley 2008-3-28 6825 Orange Santa Ana Mountains, Upper Weir Canyon, Irvine Ranch Conservancy, 3.3 km east-northeast of Robbers Peak on ridge north of canyon 427 Comment
  UCR47757  Cryptantha microstachys F. R. Fosberg 1930-6-15 S- 02937 Orange Santa Ana Mtns, Santiago Canyon, near Modjeska's home. Comment
  RSA0029035  Cryptantha microstachys Keith E. Hoffmaster 1934-4-22 349 Orange Santiago Canyon near Silverado. Comment
  UCR191005  Cryptantha muricata A. C. Sanders, Fred M. Roberts 2008-4-22 35024 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Limestone Canyon, c. 2 miles SW of Silverado 396 Comment
  RSA0079591  Cryptantha muricata var. muricata J. T. Howell 1928-2-25 846 Orange Nolina Canyon, Rancho Santa Ana. 152 Comment
  RSA732269  Cucurbita foetidissima A. C. Sanders 2008-4-29 35141 Orange Lomas de Santiago, western end of Loma Ridge on road to sheriff's training facility, c. 1.5 mi. SW of Santiago Reservoir. 335 Comment
  CAS-BOT-BC80575  Cupressus forbesii John Thomas Howell 1927-8-10 2983 A Orange upper [Claymine] Clay Mine Canyon, n. Santa Ana Mts. 609 Comment
  JEPS19317  Cupressus forbesii John Thomas Howell 1927-8-10 2983 A Orange w of Sierra Peak (at head of Claymine Canon); Santa Ana Mts., Claymine Canon 609 Comment
  RSA17651  Cupressus forbesii C. B. Wolf 1935-1-2 6278 Orange Slopes of Sierra Peak, west of Claymine Canyon, along road to Peak. 670 Comment
  RSA2918  Cupressus forbesii B. D. Stark 1931-6-10 2247 Orange Claymine Canyon, north end of Santa Ana Mts. 198 Comment
  RSA648649  Cupressus forbesii Richard E. Riefner, Adrian Wolf 2000-6-1 20 -451 Orange NCCP North Ranch Policy Plan Area. N of Irvine Lake and W of Black Star Cyn; W. of dirt access rd. 518 Comment
  RSA648650  Cupressus forbesii Richard E. Riefner 2000-8-3 20 -707 Orange NCCP North Ranch Policy Plan Area. E of Main Divide Road and Windy Ridge cypress forest. 534 Comment
  RSA7204  Cupressus forbesii B. D. Stark 1933-3-17 4532 -G Orange Claymine Canyon, Santa Ana Mts. 609 Comment
  RSA730999  Cupressus forbesii Fred M. Roberts, B. Allen, D. Olsen 2007-1-19 6502 Orange Beek s Place along Main Divide Rd., 4.1 km NW Pleasant Peak. 852 Comment
  NY16674  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
  JEPS47128  Cuscuta Alice King Jun 1908 Orange Santa Ana 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
  RSA409706  Cuscuta californica George Price 1967-5-14 s.n. Orange Silverado Canyon Comment
  RSA690978  Cuscuta californica Scott D. White, Michael Honer 2003-5-29 9432 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
  RSA697161  Cuscuta californica R. H. McArthur 1934-5-19 s.n. Orange Live oak Canyon. Comment
  CDA39943  Cuscuta campestris T. C. Fuller 1958-9-26 s.n. Orange North side of Orangethorpe Ave., 0.5 mile east of Broadhurst Road, Anaheim. 0 Comment
  POM201718  Cuscuta ceanothi L. M. Booth 1932-7-25 s.n. Orange Santa Ana River Comment
  RSA201912  Cuscuta salina L. M. Booth 1933-10 s.n. Orange Newport Comment
  UCR10366  Cuscuta salina Thomas A. Zink 1971-1 s.n. Orange South Coast, Newport Back Bay near the west end of the water-skiing area 3 Comment
  UCR194551  Cuscuta subinclusa A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35320 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along fire line/bulldozer cut, c. 1.5 mi. east of Walnut Cyn Reservoir 346 Comment
  SEINET891443  Cuscuta subinclusa Philip A. Munz 1946-1 11555 Orange on Salix spp. And Baccharis; Sarta Ana River bottom, Rancho Santa Ana. 121 Comment
  RSA65888  Cycloloma atriplicifolium F. W. Peirson 1924-8-29 5061 Orange Santa Ana River, bridge near Santa Ana. Comment
  CAS-BOT-BC56704  Cylindropuntia californica John Thomas Howell 1927-6-22 2575 Orange Field redacted by CAS, contact the data manager for more information 152 Comment
  RSA703684  Cynara cardunculus subsp. flavescens Fred M. Roberts, David E. Bramlet 2004-11-5 6125 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, Cristianitos Cyn., along creek, 0.73km N Sycamore Gate and 0.10 km W Cristianitos Road. 122 Comment
  UCD60070  Cynodon dactylon Beecher Crampton 1965-10-27 7578 Orange 2 miles east of Irvine, Irvine Blvd. Comment
  POM1353  Cyperus erythrorhizos D. L. Crawford 1916-7-26 s.n. Orange Laguna Canyon. Comment
  UC774605  Cyperus erythrorhizos C. B. Wolf 1937-9-23 9366 Orange Rancho Santa Ana Santa Ana Canyon, Rancho Santa Ana 121 Comment
  RSA594874  Cyperus erythrorhizos Fred M. Roberts, W. R. Ferren 1991-12-1 4829 Orange San Joaquin Hills: Laguna Canyon, Upper Laguna Lake, 3.5 kilometers N junction El Toro Road, 4.9 kilometers ENE Signal Peak. 113 Comment
  RSA443819  Cyperus esculentus 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
  RSA599639  Cyperus involucratus Fred M. Roberts, P. Barrett, G. Bastillos 1995-7-25 4968 Orange Santa Ana Mountains: San Juan Canyon along San Juan Creek, San Juan Hot Springs, 0.8 kilometer SSW Juan Rancho Survey Mark. 214 Comment
  UCSB57539  Cyperus involucratus Roberts, Fred 1984-2-18 Orange Casper's Regional Park; San Juan Canyon, Hwy.74, 4.2 km. NNE Visitor Center along San Juan Creek; 3.1 km. SW San Juan Guard Station 160 Comment
  RSA153444  Cyperus laevigatus F. R. Fosberg 1931-6-19 746 Orange Carbon Canyon, Puente Hills. Comment
  UC729959  Cyperus laevigatus Carl B. Wolf 1932-7-2 3813 Orange 1/8 mi. below La Vida Springs (Carbon Canyon); Carbon Canyon 213 Comment
  RSA797602  Cyperus niger var. capitatus Robert F. Thorne 1977-11-21 49999 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs Comment
  RSA794756  Cyperus odoratus Justin M. Wood 2010-9-29 2748 Orange Santa Ana Canyon: Santa Ana River, southwest of Green River Golf Course and north of Hwy 91 and Santa Ana River Trail. 128 Comment
  RSA800673  Cyperus odoratus Justin M. Wood 2010-9-29 2748 Orange Santa Ana Canyon: Santa Ana River, southwest of Green River Golf Course and north of Hwy 91 and Santa Ana River Trail. 128 Comment
  CAS-BOT-BC414246  Cyrtomium falcatum R. E. Riefner, Jr. 2014-6-25 14 -210 Orange City of Laguna Beach, Shaw's Cove, north of Cliff Dr. and Fairview St. 3 Comment
  UCR230584  Cyrtomium falcatum R. E. Riefner Jr. 2011-7-1 11- 83 Orange South Coast, city of Newport Beach, beach area west of the end of Cameo Shores Road, south c. 1 mi from Poppy Avenue 2 Comment
  UCR241041  Cyrtomium falcatum Robert DeRuff 2010-1 487 Orange South Coast, Upper Newport Bay, near Back Bay Dr., below Eastbluff North 5 Comment
  CAS-BOT-BC402185  Datisca glomerata R. F. Thorne; E. W. Lathrop; W. Wisura 1977-7-8 49618 Orange Santa Ana Mountains: Bluffs above San Juan Creek, about 1 mile above San Juan Fire Station. Comment
  RSA791871  Datisca glomerata R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49618 Orange Santa Ana Mountains: Bluffs above San Juan Creek, about 1 mile above San Juan Fire Station Comment
  SEINET8724906 Image available Datisca glomerata F. R. Fosberg 1931-1 S 5151 Orange Silverado Can. , Santa Ana Mts, Orange Co. Comment
  RSA650635  Datura wrightii Daniel Truong 1991-5-5 1 Orange Irvine Regional Park, left field adjacent to main entrance, within 1/4 mile radius of ''closed area''. Comment
  UCSB10435  Datura wrightii Haller, Norman 1953-4-25 Orange U.S. 101, 3 miles northwest of Laguna Beach Comment
  UCR192069  Daucus pusillus A. C. Sanders, Fred M. Roberts 2008-5-6 35245 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
  RSA761936  Daucus pusillus Robt. Allen 2005-4-30 12497 Orange Caspers Wilderness Park, East Ridge Trail. 175 Comment
  CAS-BOT-BC299331  Deinandra fasciculata H. F. Copeland 1938-6-28 s.n. Orange Hills back of Laguna Beach Comment
  CHSC26108  Deinandra fasciculata James Henrickson 1970-7-24 5001 Orange 3 miles NW of Huntington Beach near sandy 'Rabbit' Island in Bolsa Chica Salt Marsh near Inner Bolsa Bay. Roadside. 0 Comment
  RSA747715  Deinandra fasciculata Fred M. Roberts 2008-7-10 7064 Orange Dana Point: Dana Point Headlands, CNLM Preserve, near Strands Road Gate, 0.8km WNW Marine Institute, Dana Point Harbor. 65 Comment
  UC1093919  Deinandra fasciculata Herbert L. Mason 1926-4-25 2932 Orange 5 mi s Laguna Comment
  UC729957  Deinandra fasciculata Carl B. Wolf 1932-7-2 3811 Orange opposite Olinda Pilgrim Church Valencia Ave.; Olinda Comment
  UC75961  Deinandra fasciculata E. A. Zumbro 1902-1-1 388 Orange Comment
  CAS-BOT-BC383061  Deinandra paniculata R. E. Riefner, Jr. 2014-7-10 14 -236 Orange City of Laguna Beach, Laguna Canyon, Laguna Coast Wilderness Park, Laurel Canyon Trail near Post-Marker C, SW ca. 0.1 mi from the intersection of Laguna Canyon Rd. and El Toro Rd. 75 Comment
  UCR254221  Deinandra paniculata R. E. Riefner Jr. 2008-5-19 08- 100 Orange Ladera Ranch, Cecil Pasture at Jerome Road 157 Comment
  UCSB56508  Delairea odorata Marsh, G.; Marsh, K. 1978-1-22 Orange Santa Ana Mountains; Ladd Cnayon Comment
  RSA769340  Delphinium cardinale E. W. Lathrop 1974-6-27 7406 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  UCR231162  Delphinium cardinale Dick Newell, Judy Booth 2011-6-26 193 Orange Peninsular Range; Santa Ana Mtns., Long Canyon Rd., NW of Hwy 74, Cleveland National Forest 965 Comment
  UCR261690  Delphinium cardinale Dick Newell, Judy Booth 2014-6-22 381 Orange Peninsular Range; Santa Ana Mtns., Long Canyon Road, 0.2 mi. east of road to El Cariso Hotshot Camp 903 Comment
  UCSB50633  Delphinium cardinale Roberts, Fred 1982-7-9 Orange Santa Ana Mtns; c.a. 2.3km by road W Hwy 74 on forestry road; 2.5km WSW El Cariso Guard Station 925 Comment
  RSA0005324  Delphinium maritimum Anstruther Davidson 1910-4-20 2471 Orange Corona Del Mar. Comment
  POM13827  Delphinium patens subsp. hepaticoideum P. A. Munz 1922-4-28 5042 Orange Leach Canyon, Santa Ana Mountains 671 Comment
  RSA5311  Dendromecon rigida subsp. rigida B. D. Stark 1933-1-5 4506 Orange 2 mi. so. of summit of skyline Drive on road along ridge to Santiago Peak. Santa Ana Mts. 1067 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
  RSA23620  Dicentra ochroleuca Percy C. Everett 1938-10-11 9464 Orange Santa Ana Mts, Tin Mine Canyon, Skyline Drive, 1/2 mile below summit. 915 Comment
  CHSC26004  Dichelostemma capitatum subsp. capitatum E. Bushey 1968-5-15 54 Orange San Juan Canyon. 365 Comment
  RSA627752  Dichelostemma capitatum subsp. capitatum Scott D. White 1998-3-18 6215 Orange University of California, Irvine campus: Site of proposed Research Park. Southwwest of main campus circlu, ca. halfway between Berkely Avenue and new freeway (Bonita Canyon). 37 Comment
  RSA590942  Dichelostemma capitatum subsp. capitatum Fred M. Roberts Jr. 1991-5-2 4782 Orange San Joaquin Hills: Laguna Canyon, Laguna Laurel, just W of Laguna Canyon Road, ca 2 km N jct El Toro Road, 4.5 km E Signal Peak. 110 Comment
  RSA114378  Dichelostemma pulchellum var. pulchellum G. R. Campbell 1955-12-6 21492 Orange Nursery Seedlings at Botanic Garden, Prop. No. 6310, from seed coll. by E. K. Balls, May 28, 1949, from plants native to old Botanic Garden site, Santa Ana Canyon 183 Comment
  POM48839  Dichondra occidentalis Stephen Grout 1904-08 s.n. Orange Three Arches, Laguna Comment
  JEPS73759  Digitaria sanguinalis L. M. Booth 1932-6-28 1210 Orange Bolsas Creek Comment
  RSA734607  Digitaria sanguinalis Keith E. Hoffmaster 1933-10-8 280 Orange Santa Ana Comment
  RSA0019263  Dimorphotheca ecklonis R. E. Riefner 2000-3-14 20 -136 Orange NCCP North Ranch Policy Plan Area. Along dirt road running N from Baker Cyn.Road. 304 Comment
  RSA0047115  Dinebra retroflexa var. retroflexa O. F. Clarke, D. Svehla 2004-8-23 s.n. Orange Santa Ana River Valley: Yorba Linda, Yorba Regional Park, Santa Ana River bank near intersection of E. La Palma Ave. and Fairmont Blvd. 91 Comment
  SJSU377  Diplacus aurantiacus A. W. Jacobs 1938-8-4 Orange Trabuco Canyon Rd, Santa Ana Mts c. 8 mi NE of El Toro Comment
  SD255235  Diplacus longiflorus R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49795 Orange Santa Ana Mountains: Trabuco Canyon. Comment
  CAS-BOT-BC150842  Diplacus puniceus Alice Eastwood; John Thomas Howell 1937-4-24 3931 Orange 2 miles east of San Juan Hot Springs Comment
  RSA0054846  Diplacus puniceus Anonymous s.n. Orange Laguna Canyon. 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
  CAS-BOT-BC43559  Diplotaxis tenuifolia L. R. Abrams 1917-7-5 6601 Orange Tustin. Comment
  CAS-BOT-BC43560  Diplotaxis tenuifolia Helen D. Geis 1902-1-1 544 Orange Santa Ana. Comment
  UCD114710  Diplotaxis tenuifolia W. W. Robbins 1931-5-11 2203 Orange Santa Ana. Comment
  RSA39340  Diplotaxis tenuifolia E. L. Paddock 1943-6-2 12737 Orange SE of First Street, 1/2 mile W of Tustin Street, Santa Ana. Comment
  RSA66079  Diplotaxis tenuifolia W. L. Jepson 1929-8-29 s.n. Orange Santa Ana. Comment
  CAS-BOT-BC195673  Distichlis spicata John Thomas Howell 1927-6-17 2552 Orange Hills on north side of Santa Ana Canon [Canyon] 152 Comment
  CAS-BOT-BC208625  Distichlis spicata Carl B. Wolf 1932-7-2 3815 Orange Carbon Canyon, 1/8 mi. below La Vida Springs 213 Comment
  IRVC29710  Distichlis spicata Barry S. Nerhus, Mark A. Elvin 2006-11-4 15 Orange Huntington Beach, Bolsa Chica Wetlands, SW portion of Reserve beside Pacific Coast Highway. Southern Coastal 0 Comment
  RSA0028028  Distichlis spicata Fred M. Roberts 2012-9-6 7701 Orange San Joaquin Hills: Buck Gully, Buck Gully Trail, about 1.8 kilometers NW Pelican Hill summit. 64 Comment
  RSA685922  Distichlis spicata Fred M. Roberts 2003-3-27 5632 Orange Rancho Mission Viejo:Donna O'Neill Land Conservancy, western slopes of Chistianitos Canyon, 0.25km N Sycamore Gate 0.13km W Cristianitos Road 116 Comment
  SD28114  Distichlis spicata Carl B. Wolf 1932-7-2 3815 Orange Carbon Canyon, 1/8 mile below La Vida Springs 213 Comment
  UCSB70754  Distichlis spicata Ferren, Wayne; Roberts, Fred; Marsh 1981-9-25 Orange Seal Beach Ntnl Wildlife Refuge; NW of Huntington Harbor; along Rt. 1 bayside; N end of bridge at Anaheim Bay; 1 mi E of Seal Beach; Margin of salt marsh below hwy, upper edge Comment
  UC2062535  Distichlis spicata subsp. spicata Hester L. Bell with Anna L. Bell 2002-5-1 259 Orange Shellmaker Road in Lower Newport Bay, near Shellmaker Island and Upper Newport Bay Reserve. Comment
  SEINET5500867 Image available Dodecatheon clevelandii Sally Walker 1998-3-23 Orange Quail trail Wm casper park Comment
  UCSB47596  Drymocallis glandulosa var. reflexa Roberts, Fred 1980-5-3 Orange Santa Ana Mtns., San Juan Canyon: below Rte. 74, 2.5km by road ENE San Juan Guard Station; 0.5km WSW Bm 1100 288 Comment
  RSA722384  Drymocallis glandulosa var. wrangelliana Mabel Harvey s.n. Orange Trabuco Canyon. Comment
  IRVC123  Dryopteris arguta A. S. Boughey, P. Pembrook 1965-6-15 1042 Orange Santa Ana mtns: Silverado Cyn above Silverado. Peninsular Ranges Comment
  RSA749292  Dryopteris arguta Fred M. Roberts 1999-4-21 5175 Orange Lomas de Santiago: Loma Ridge, Limestone Cyn. along Dripping Spgs Rd., at mouth of Dripping Spgs. Cyn., 1.0 km W Silverado Sch. and 4.3 km NNW Bolero Lookout. 311 Comment
  UCR175515  Dryopteris arguta Mark A. Elvin, A. C. Sanders 2005-9-2 4497 Orange Peninsular Ranges, Santa Ana Mtns: Mouth of Lion Canyon, just upstream from Lower San Juan Campground 457 Comment
  IRVC127  Dryopteris arguta J. Morgan 1965-4-25 Orange Beacon Bay. Newport Beach Comment
  NY387869  Dudleya R. V. Moran 1948-6-23 3097 Orange North-facing cliff near mouth of Aliso Canyon, south of Laguna Beach. 7.6 Comment
  RSA542642  Dudleya edulis Fred M. Roberts, K. Keane 1988-5-26 4007 Orange Rancho Mission Viejo: tributary to Trampas canyon, along Christianitos rd., 2.4 km ESE Viejo Survey mark. 128 Comment
  UC2059992  Dudleya edulis K. Nakai 1978-4-19 360 Orange Aliso Canyon, ca 200 yards from Highway 1. Comment
  CAS-BOT-BC411411  Dudleya lanceolata Lawrence M. Booth 1931-1-1 1188 Orange Bluff slopes of Newport Bay Comment
  UC933254  Dudleya lanceolata Reid Moran 1948-6-23 3093 Orange Arch Beach Comment
  UC933255  Dudleya lanceolata Reid Moran 1950-4-24 3390 Orange San Clemente Comment
  UCR119302  Dudleya lanceolata R. E. Riefner Jr., Adrian Wolf 2000-6-1 20- 456 Orange Santa Ana Mountains, North Ranch Policy Plan Area, north of Irvine Lake [Santiago Reservoir] and west of Black Star Canyon, west of dirt access road, W slope of Fremont Canyon. 473 Comment
  CAS-BOT-BC411407  Dudleya lanceolata K. Nakai 1979-5-12 507 Orange Treasure Cove, Newport Bluffs 10 Comment
  RSA83330  Dudleya lanceolata F. W. Peirson 1924-6-1 4675 Orange Santa Ana River. 122 Comment
  UC420678  Dudleya lanceolata A. R. Davis Orange mtns above Claremont Comment
  CAS-BOT-BC109671  Dudleya multicaulis K. Nakai 1981-6-4 774 Orange 0.3 mile east of Laguna Canyon Road on El Torro Road. 91 Comment
  RSA542535  Dudleya multicaulis Fred M. Roberts, K. G. Marsh, G. A. Marsh 1988-4-26 3943 Orange San Joaquin Hills: Pelican Hill, 0.6 km SE summit. 172 Comment
  RSA542640  Dudleya multicaulis Fred M. Roberts, Kathy Keane 1988-5-25 3994 Orange Rancho Mission Veijo: Lower Canada Chiquita, 2.0km SSE Medium Rancho Survey Marker. 91 Comment
  RSA594811  Dudleya multicaulis Fred M. Roberts, Edna Rey, Kay Stockwell 1993-5-6 4880 Orange El Modena: Lomita Ave, ca. 0.4 km by road E Santiago Blvd., 0.4 km W Bauer Survey Marker. 122 Comment
  RSA751169  Dudleya multicaulis D. E. Bramlet 2008-5-20 4280 Orange N Loma Ridge, 305m west of Hwy 241, 976m south of Santiago Cyn Rd. & 61m N of the access road. 355 Comment
  UCD101935  Dudleya multicaulis Miss Thekla Mahr 1920-6-1 s.n. Orange near Laguna. Comment
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Jun 13 2012
  RSA13068  Dudleya pulverulenta P. C. Everett 1935-7-5 2361 Orange Rancho Santa Ana, Santa Ana Canyon hill N of Grapefruit orchard 152 Comment
  UCR222628  Dudleya pulverulenta T. B. Salvato 2010-10-27 5103 Orange South Coast, Dana Point Headlands, Harbor Point Park, south of Scenic Dr. and Cove Rd., beyond the end of Green Lantern St., overlooking Dana Point Harbor 70 Comment
  NY387890  Dudleya stolonifera R. V. Moran 1948-6-23 3095 Orange This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  NY387891  Dudleya stolonifera R. V. Moran 1948-6-23 3095 Orange This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  RSA697178  Dudleya variegata Gray s.n. Orange Panorama Heights. Comment
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Jan 10 2015
  IRVC26520  Dudleya virens subsp. hassei Mark A. Elvin 2004-5-22 3448 Orange UCI Arboretum Southern Coastal 15 Comment
  SFV10403  Dudleya viscida M. L. Vincent 1963-7-8 435 Orange Roadside, 5 miles east of San Juan Capistrano on Highway 74. Comment
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Jan 6 2018
  UCSB50636  Dudleya viscida Roberts, Fred 1982-7-9 Orange Santa Ana Mtns.; San Juan Canyon, Hwy. 74, 1.4 km. by road E San Juan Guard Station; 4.6 km. W Sitton Peak 275 Comment
  SD236267  Dysphania multifida A. C. Sanders, Fred M. Roberts 2008-6-17 35476 Orange Peninsular Range; Santa Ana Mountains: Lomas de Santiago, Agustine staging area near Limestone Canyon Rd gate at Santiago Canyon Road (Black Star Canyon 7.5'Q) 259 Comment
  UCD33247  Echinochloa colona Beecher Crampton 1967-5-23 7957 Orange Orange County, 4 miles east of Irvine, UC South Coast Field Station. Comment
  CAS-BOT-BC197176  Echinochloa crus-galli Ira L. Wiggins 1965-11-7 20356 Orange Between State College Blvd. and Troy High School campus, Fullerton Comment
  UCR154271  Echinochloa crus-galli Mark A. Elvin 2004-5-2 3426 Orange Southern Coastal, Irvine: San Joaquin Freshwater Marsh, near Campus and University Drives; 1.7 km (air) NNW UC Irvine campus center 3 Comment
  POM1011  Echinodorus berteroi I. M. Johnston 1918-9-3 2151 Orange Laguna Canyon (at the lakes) 107 Comment
  POM48523  Echinodorus berteroi F. M. Reed 1924-8-15 4963 Orange Laguna Lake bed - Laguna canyon. Comment
  UCR113444  Echinodorus berteroi R. E. Riefner Jr. 2000-8-21 20- 728 Orange Santa Ana Mountains: Irvine Lake [Santiago Reservoir], first cove southeast of the dam 238 Comment
  UCR66983  Echinodorus berteroi D. E. Bramlet 1990-10-17 2063 Orange Delhi Channel at the intersection of Irvine Ave. & Mesa Drive, just west of Newport Beach Golf Course 6 Comment
  SBBG104111  Ehrendorferia chrysantha B. Pitzer, S. Hemstreet 1992-5-21 1948 Orange St Hwy 74, 1 mi uphill from the 2000 ft marker, and on left ca. 1 mi on old paved Rd 762 Comment
  CHSC109685  Ehrharta calycina Scott D. White; Michael Honer 2003-6-12 9542 Orange Southwestern Santa Ana Mts Foothills: Rancho Mission Viejo. Upper end of Trampas Canyon. 168 Comment
  SBBG128733  Ehrharta erecta R. E. Riefner Jr. 2012-2-1 12 -15 Orange Dana Point Harbor, vicinity of Puerto Pl and Dana Point Harbor Drive; Dana Point 2 Comment
  POM11616  Elatine brachysperma P. A. Munz 1921-4-12 4478 Orange Laguna Beach; 1 mile north of Laguna on bluff near clubhouse. 61 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
  UC1784199  Eleocharis macrostachya Donald G. Nelson 1935-4-15 307 Orange on road from Garden Grove to Costa Mesa, converging near Costa Mesa, toward main highway from Santa Ana Comment
  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
  UCSB47988  Eleocharis palustris Roberts, Jr., Fred 1980-6-25 Orange Santa Ana Mtns., San Juan Canyon, 2.4 km. ENE San Juan Guard Station; 0.3 km. WSW Bench Mark 1100 290 Comment
  RSA84  Eleocharis radicans J. T. Howell 1927-7-6 276 Orange Santa Ana River bottom, Rancho Santa Ana 152 Comment
  RSA0117550  Eleocharis rostellata L. M. Booth 1932-6-4 1151 Orange Newport Lagoon. Comment
  RSA735128  Eleusine coracana subsp. africana R. E. Riefner 2005-10-17 5 -724 Orange City of Los Alamitos, Arroyo Park, Heather St. at Lamson Ave. 10 Comment
  RSA5828  Elymus X gouldii C. B. Wolf 1932-6-28 3794 Orange Bryant Ranch, north boundary of field. 9 Comment
  RSA798184  Elymus glaucus R. F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49597 -a Orange Santa Ana Mountains: rocky ravine tributary to San Juan Canyon, along Ortega Highway (74) about 2 miles above San Juan Fire Station. Comment
  CAS-BOT-BC206790  Elymus glaucus subsp. glaucus Le Roy Abrams 1901-6-1 1831 Orange Mt. Santiago Trail 914 Comment
  UCR215297  Elymus glaucus var. glaucus Fred M. Roberts 2008-5-7 6940 Orange Lomas de Santiago, Limestone Ridge between Dripping Spring and Limestone Canyon, 3.5 km NW of Bolero Lookout and 1.7 km east of Bee Peak. Irvine Ranch Conservancy 481 Comment
  POM1331  Elymus multisetus Le Roy Abrams 1901-06 1823 Orange Santiago Peak Trail 915 Comment
  RSA65  Elymus multisetus J. T. Howell 1927-6-8 53 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA679226  Elymus multisetus Fred M. Roberts 2003-6-25 5944 Orange Santiago peak, north slopes along ridge east of Main Divide truck trail, 0.6km NNW summit. 1605 Comment
  RSA724034  Elymus repens R. E. Riefner 2005-10-1 5 -704 Orange City of Costa Mesa, South Coast Dr. at Susan Rd. 16 Comment
  RSA539385  Emmenanthe penduliflora Fred M. Roberts, Carol A. Roberts 1988-6-10 4093 Orange Santa Ana Mtns: Main Divede Truck Trail, Modjeska Peak, 1.1 km SW summit. 465 Comment
  LA103538  Encelia californica Barry A. Prigge; 1983-12-17 5518 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
  POM202371  Encelia californica L. M. Booth 1932-5-12 1029 Orange Newport Bay. Comment
  POM356655  Encelia californica E. Crow 1929-2-22 162 Orange Gypsum Canyon, Snata Ana Mts, S of Corona Comment
  RSA221019  Encelia californica E. W. Lathrop 1966-3-23 6082 Orange Skyline Drive between Tin Mine Canyon and Black Star Canyon, 6 miles W of Corona, Santa Ana Mts. 427 Comment
  UC494726  Encelia californica Philip A. Munz 1932-3-29 12185 Orange Costa Mesa Costa Mesa (sea bluffs) Comment
  UCR267184  Encelia californica Fred M. Roberts 2010-3-12 7177 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
  UCR73134  Encelia californica Scott D. White 1992-9-23 852 Orange Vicinity of Olinda, near city of Brea, immediately north of Carbon Canyon Road and east of Placentia Ave.; c. 1 mi. (airline) SSE of Tonner Canyon 183 Comment
  UC1118064  Encelia californica H. E. Norton 1931-3-1 53 Orange Corona #1 Corona Quadrangle Comment
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Apr 24 2014
  RSA650630  Epilobium adenocaulon var. parishii Daniel Truong 1991-5-13 33 Orange Irvine Regional Park, left field adjacent to main entrance, within 1/4 mile radius of 'closed area' Comment
  RSA723970  Epilobium brachycarpum R. E. Riefner Jr. 2005-10-5 05 -705 Orange City of Yorba Linda; Santa Ana River, Horseshoe Bend, near La Palma Rd. and Via Del Rio Rd. 99 Comment
  JEPS31486  Epilobium canum subsp. canum L. M. Booth 1932-7-27 1320 Orange Corona del Mar Comment
  SBBG16491  Epilobium canum subsp. canum E. B. Carlton 1961-9-3 7 Orange E on Hidden Valley Rd, ca. 1 mi from Broadway and S Coast Blvd, Laguna Beach Comment
  RSA542492  Epilobium canum subsp. latifolium Fred M. Roberts, Richard E. Riefner 1988-7-19 4119 Orange Santa Ana Mountains: Modjeska Peak, west slope, 1.1 km SW summit 1524 Comment
  RSA496  Epilobium ciliatum subsp. ciliatum J. T. Howell 1927-7-5 267 Orange West side, Rancho Santa Ana [Botanic Garden]. 152 Comment
  RSA754075  Epipactis gigantea A. C. Sanders, Fred M. Roberts 2008-7-16 35844 Orange Lomas de Santiago, Dripping Springs off Limestone Canyon, c. 7.5 mi. ESE of Tustin 391 Comment
  UC536935  Epipactis gigantea Lawrence M. Booth 1932-6-4 1150 Orange Newport Lagoon; base of hill 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
  IRVC1250  Equisetum hyemale subsp. affine L. Burns 1965-4-21 Orange Balboa Peninsula. Newport Beach Comment
  RSA752896  Equisetum laevigatum A. C. Sanders, Fred M. Roberts 2008-8-7 35987 Orange lower Weir Canyon, at narrow gorge c. 0.6 mi. above mouth of cyn at Irvine Ranch gate 185 Comment
  RSA703457  Eragrostis R. E. Riefner Jr. 2004-8-27 4 -392 Orange City of Irvine, San Diego Creek at 405 freeway. 50 Comment
  JEPS68587  Eragrostis mexicana subsp. virescens Lawrence M. Booth 1932-7-18 1261 Orange Newport Bay Balboa Island; , Balboa Island Comment
  POM298879  Eragrostis mexicana subsp. virescens Frank W. Gould 1944-6-25 2362 Orange Tournat Ranch, Garden Grove. Comment
  CHSC116469  Eragrostis mexicana subsp. virescens R. F. Thorne; E. W. Lathrop, W. Wisura 1977-7-8 49567 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74). Comment
  JEPS52502  Eremocarpus setiger John Thomas Howell 1927-9-24 3108 Orange Rancho Santa Ana Santa Ana Canyon 152 Comment
  UC1543073  Eremocarpus setiger Donald G. Nelson 1935-6-27 330 Orange on bluffs facing ocean beaches s Corona del Mar (s of mouth of Newport Bay) Comment
  LA106815  Eriastrum densifolium subsp. sanctorum John Thomas Howell; 1927-8-13 2985 Orange Santa Ana Canyon Comment
  UC23533  Eriastrum densifolium subsp. sanctorum S. B. and W. F. Parish July, 1886 Orange Santa Ana Riv. Comment
  UC52799  Eriastrum sapphirinum W. C. Blasdale June 1891 Orange Santiago Canyon Comment
  RSA769342  Eriastrum sapphirinum E. W. Lathrop 1974-6-27 7419 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  RSA0122940  Eriastrum sapphirinum subsp. dasyanthum D. E. Bramlet 2008-6-3 4286 Orange Upper Borrego Cyn, 136m SE of the access road and 1.5km west of Santiago Cyn Road 433 Comment
  CAS-BOT-BC514997  Eriastrum sapphirinum subsp. dasyanthum L. R. Abrams 1901-6-1 1791 Orange Trabuco Canyon Comment
  RSA0008409  Ericameria palmeri var. pachylepis A. C. Sanders, Fred M. Roberts, Jutta Burger 2009-10-21 37197 Orange Lomas de Santiago, Limestone Canyon, west of Limestone Canyon Rd. 366 Comment
  RSA554643  Ericameria palmeri var. pachylepis Scott D. White 1992-9-29 866 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
  UCR239618  Ericameria palmeri var. pachylepis Fred M. Roberts 2012-4-27 7537 Orange Lomas de Santiago, Loma Ridge, west of SR 241, tributary to 'Las Flores' Canyon, 1.9 km southwest of Irvine Lake Park Campground and 1.2 km east-souteast of Orange County Emergency Operations Center, Hill 1311 350 Comment
  RSA708533  Ericameria parishii var. parishii Fred M. Roberts, Robert L. Allen, Chris Barnhill 2004-8-21 6106 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
  HSC25252  Ericameria pinifolia Richard Spjut 1972-2-21 2213 Orange Along Hwy. 74 in the Cleveland National Forest, Santa Ana Mtns. 610 Comment
  RSA696782  Erigeron R. H. McArthur 1934-5-19 s.n. Orange Trabuco Canyon. Comment
  SDSU3943  Erigeron foliosus D. F. Howe 1976-6-4 4905 Orange Trabuco Canyon, Santa Ana Mts. 305 Comment
  CAS-BOT-BC33457  Erigeron foliosus var. foliosus LeRoy Abrams 1901-6-16 1801 Orange Trabucco Canyon Comment
  POM357494  Erigeron foliosus var. stenophyllus F. R. Fosberg 1931-6-21 748 Orange Silverado Canyon. Santa Anita Mts. Comment
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Nov 26 2016
  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
  UCR247454  Erigeron karvinskianus R. E. Riefner Jr. 2013-1-16 13- 15 Orange South Coast, city of Newport Beach, vicinity of Poppy Ave. and Ocean Blvd., coastal bluff at Little Corona Beach 6 Comment
  LA205566  Eriodictyon crassifolium A. M. Johnson; 1932-4-23 4020 Orange Orange Comment
  SD70811  Eriodictyon crassifolium Lucille Kempers 1953-5-1 39 Orange Coal Canyon 395 Comment
  UC171023  Eriodictyon crassifolium H. M. Hall 1913-5-28 9402 Orange Santiago Canyon Comment
  UCSB49524  Eriodictyon crassifolium Jenkins, Scott 1983-3-4 Orange 2 miles up Modjeska Canyon Rd. on west side 243 Comment
  POM9827  Eriodictyon crassifolium P. A. Munz, R. D. Harwood 1920-4-24 3761 Orange Sierra [Freemont] Canyon 366 Comment
  JEPS43  Eriodictyon crassifolium var. crassifolium Alice King May 1908 Orange Orange Park mouth of Santiago Canyon (mouth of Santiago Canyon); Santa Ana Mountains, , Orange Park Comment
  CAS-BOT-BC241888  Eriogonum cinereum Peter A. Bowler 2003-4-20 s.n. Orange Southern Coastal: UCI Arboretum 15 Comment
  IRVC27012  Eriogonum elongatum Peter A. Bowler 2003-4-20 s.n. Orange UC San Joaquin Freshwater Marsh Reserve; bluffs along NW edge of marsh. Southern Coastal 9 Comment
  RSA716727  Eriogonum elongatum Fred M. Roberts 2004-8-21 6101 Orange Santa Ana Mtns.: Hot Springs Cyn., Hot Springs Cyn. Rd., c.a. 0.8km by road N. jct. SR 74; 0.7 km NNW Juan Rancho Survey Mark. 255 Comment
  UCR250138  Eriogonum elongatum Dick Newell, Judy Booth 2013-12-25 347 Orange Peninsular Range; Santa Ana Mtns., Maple Springs Road, Cleveland National Forest, at end of paved roadway 899 Comment
  UCR45132  Eriogonum elongatum B. G. Pitzer, L. F. LaPre 1986-10-20 s.n. Orange Santa Ana Mtns, Summit of Hicks Canyon on a private road (continuation of Jeffrey Road), c. 2.4 mi. above the gun club 274 Comment
  IRVC28779  Eriogonum fasciculatum Caroline Tran 2006-2-4 1 Orange San Joaquin Marsh; NW bluff edge Southern Coastal 5 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
  UCR192994  Eriogonum fasciculatum subsp. polifolium A. C. Sanders, T. B. Salvato 2008-5-13 35382 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Canyon above (S of) mouth of Hangman Tree Canyon, just below Modjeska Canyon confluence 366 Comment
  RSA542470  Eriogonum fasciculatum var. polifolium Karlin G. Marsh 1989-6-23 s.n. Orange Laurel Springs, Harding Truck Trail. 316 Comment
  RSA7391  Eriogonum fasciculatum var. polifolium Carl B. Wolf 1933-8-24 5402 Orange Summit of Santiago Peak, Santa Ana Mountains. 1732 Comment
  CAS-BOT-BC253477  Eriogonum gracile L. M. Booth 1933-8-26 1386 Orange Newport Lagoon Comment
  RSA788926  Eriogonum gracile var. gracile Fred M. Roberts 1999-6-10 5236 Orange Lomas de Santiago: Loma Ridge, Agua Chinon Canyon, 1.4 km S Bolero Spring and 2.1 km W Bolero Lookout. 258 Comment
  CAS-BOT-BC269831  Eriogonum nudum var. pubiflorum Carl B. Wolf 1933-8-24 5400 Orange Santa Ana Mts. Summit of Santiago Pk. 1731 Comment
  RSA716664  Eriogonum parvifolium Fred M. Roberts 2004-7-10 6073 Orange Laguna Beach: Crescent Bay, at base of Twin Points. 3 Comment
  UCD100835  Eriogonum parvifolium A. C. Sanders 1990-10-6 10179 Orange Newport Bay, Westcliff Park area on the SW end of the bay, 1 km inland of Hwy 1. 1 Comment
  CAS-BOT-BC263018  Eriogonum thurberi E. R. Johnson 1933-6-22 4999 Orange Rancho Santa Ana, Santa Ana Canyon river bottom S. of Walnut Grove 121 Comment
  POM357963  Eriophyllum confertiflorum M. B. Dunkle 1934-6-18 3998 Orange San Juan Canyon, Southern Coastal. 305 Comment
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Oct 3 2011
  RSA734762  Eriophyllum confertiflorum A. C. Sanders, Teresa B. Salvato 2008-5-13 35342 Orange Lomas de Santiago, Santiago Canyon at mouth of Hangman Tree Canyon and lower Hangman Tree Cyn, c. 1/2 mile below Modjeska Canyon confluence 366 Comment
  RSA739703  Eriophyllum confertiflorum A. C. Sanders, Fred M. Roberts 2008-7-3 35667 Orange Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor 365 Comment
  UCR193541  Eriophyllum confertiflorum A. C. Sanders, Fred M. Roberts 2008-7-3 35667 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor 415 Comment
  RSA783824  Eriophyllum confertiflorum var. confertiflorum J. D. Olmsted 1959-5-1 531 Orange Santa Ana Mt. Range: Drainage to Santa Ana River . 100 yards NW of Rattlesnake Rock. 0.5 mi N of Hidden Ranch in Black Star Canyon. 4-5 mi Irvine Lake Reservoir to the west. 732 Comment
  UC1118325  Eriophyllum confertiflorum var. confertiflorum J. B. Spring 1931-4-14 33 Orange Cold Spring Harbor Elsinore Quadrangle, Cold Spring Harbor 457 Comment
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Jan 11 2007
  SEINET10890419  Erodium botrys Greg Gust, Leith Nye 2005-3-12 Gust 566 Orange Cleveland National Forest, on Hwy 74 ca. 0.5 m W of county boundary with Riverside at a pullout. 401 Comment
  UCR177409  Erodium botrys Scott D. White, Amanda Duchardt 2003-3-27 8846 Orange Peninsular Ranges/Santa Ana Mtns, Canyon bottom and W-facing slopes above Canada Gobernadora 183 Comment
  RSA590950  Erodium botrys Fred M. Roberts 1991-5-2 4774 Orange San Joaqui Hills, Laguna Canyon, Laguna Laurel, Just W of Laguna Canyon Road, 2km N jct El Toro Road, 4.5km E Signal Peak. 110 Comment
  RSA0034727  Erodium cicutarium David Barrios 1991-5-1 6 Orange Northwest of Fairmont Ave and Quail cir., Yorba Linda. 365 Comment
  RSA743496  Erodium cicutarium Fred M. Roberts 2008-3-19 6781 Orange Dana Point: Dana Point Headlands, CNLM Preserve, 0.8km W Marine Institute, Dana Point Harbor. 45 Comment
  RSA747593  Erodium cicutarium Fred M. Roberts 2000-5-5 5321 Orange Lomas de Santiago: Loma Ridge, Agua Chinon Cyn., north slope, 1.6 kmSSW Bolero Spr. and 2.6 km W Bolero Lookout. 308 Comment
  UCSB48066  Erodium moschatum Fritzke, Sue; Roberts, Fred 1982-4-2 Orange LAGUNA NIGUEL: hills; 3.5km ESE Aliso Peak; 3.2km ESE Alicia Fire Station; N of Del Avion 30 Comment
  CAS-BOT-BC41525  Erysimum capitatum Helen D. Geis 1902-1-1 528 Orange Santiago Creek. Comment
  SEINET13679551 Image available Erythranthe floribunda A. C. Sanders, T. B. Salvato 2008-1 35335 Orange Lomas de Santiago, Santiago Canyon at mouth of Hangman Tree Canyon and lower Hangman Tree Cyn, c. 1/2 mile below Modjeska Canyon confluence 366 Comment
  RSA312  Eschscholzia californica var. peninsularis J. T. Howell 1927-6-22 194 Orange Botany Garden, Rancho Santa Ana. Comment
  SD239814  Eucalyptus camaldulensis T. B. Salvato, Billy Deane 2006-10-16 1928 Orange South Coast: Irvine, San Diego Creek flood control channel, between Michelson Drive and the 405 Fwy (Tustin 7.5'Q) 10 Comment
  CDA5160  Eucalyptus erythrocorys R. E. Riefner Jr. 2007-9-27 07 -414 Orange City Laguna Niguel, along Forbes Road near Crown Valley Parkway; west of I-5 Freeway. 0 Comment
  UCR197691  Eucalyptus sideroxylon A. C. Sanders, Fred M. Roberts 2008-9-18 36077 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge 330 Comment
  RSA598962  Eucrypta chrysanthemifolia Scott D. White 1997-3-28 4834 Orange Above Modjeska Canyon, proposed water tank site. 425 Comment
  RSA609  Eucrypta chrysanthemifolia J. T. Howell 1927-6-21 180 Orange Botany Garden, Rancho Santa Ana. 152 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
  UCR192463  Eucrypta chrysanthemifolia A. C. Sanders, Fred M. Roberts 2008-3-25 34531 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  UCSC000889  Eucrypta chrysanthemifolia Peter Kamb 1948-6-19 1096 Orange damp rocky base of slide into canyon bottom, Chaparral scrub canyon bottom - Snata Ana Mts., Holy Jim Canyon Comment
  UC1607994  Eucrypta chrysanthemifolia var. chrysanthemifolia Donald G. Nelson 1935-7-6 224 Orange San Juan Canyon Comment
  SD220055  Euphorbia albomarginata Mark A. Elvin 2004-5-2 3428 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7 km (air) NNW UC Irvine campus center. 3 Comment
  IRVC24273  Euphorbia albomarginata Fred M. Roberts, G. A. Marsh 1985-10-26 2527 Orange Santa Ana River: adjacent to Huntington Beach; 0.7km SSW Adams Street bridge. southern coastal 4 Comment
  LA204852  Euphorbia misera Dave Dunn; 1932-7-28 7708 Orange Corona del Mar Comment
  LA204855  Euphorbia misera B. R. Lower; 1954-4-26 sn Orange Dana Point Comment
  RSA5354  Euphorbia misera B. D. Stark 1932-12-9 4425 Orange Dana Point Comment
  SD109124  Euphorbia misera Grady L. Webster 1966-12-11 7479 Orange Dana Point ocean bluffs on south-facing precipitous slopes at the tops of the bluffs Comment
  UCD142438  Euphorbia misera C. W. Tilforth; B. Busenberg 1979-11-14 1925 Orange Dana Point; north of Marina parking lot. Comment
  UCD170387  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
  UCR9253  Euphorbia misera D. H. Wilken, Tim LeBlanc 1966-1-7 622 Orange Dana Point, north of San Juan Capistrano 15 Comment
  IRVC1308  Euphorbia peplus E. P. Cowper 1965-3-1 Orange [Newport] Back Bay. Newport Beach Comment
  JEPS52403  Euphorbia peplus Lawrence M. Booth 1932-7-23 1303 Orange Corona del Mar Comment
  SEINET3089588 Image available Euphorbia peplus J. Harry Lehr 1974-5-26 1245 Orange Corner State College Blvd. & Balsam St. 30 Comment
  RSA697594  Euphorbia peplus James Snow 1929-3-28 s.n. Orange SantaAna Gardens Comment
  UCR192492  Euphorbia polycarpa A. C. Sanders, Fred M. Roberts 2008-3-25 34560 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  CDA1084  Euphorbia serpillifolia subsp. hirtula D. G. Kelch 2006-12-9 6 .534 Orange Along Newport Back Bay Dr. in side canyon. Comment
  UCR191012  Euphorbia spathulata A. C. Sanders, Fred M. Roberts 2008-4-22 35028 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Limestone Canyon, c. 2 miles SW of Silverado 396 Comment
  RSA942  Euthamia occidentalis J. T. Howell 1927-10-22 765 Orange Santa Ana River bottom, Rancho Santa Ana 152 Comment
  SBBG65406  Extriplex californica M. N. Ackley -May-1929 Orange Sunset Beach 8 Comment
  UCR267214  Festuca octoflora var. octoflora Fred M. Roberts, Lee Ann Caranza & Eliza Maher 2009-4-7 7145 Orange South Coast Region, DANA POINT HEADLANDS: Dana Point CNLM Preserve, 0.8 km WNW Dana Point Marine Institute at Dana Point Harbor 50 Comment
  RSA725507  Ficus carica Fred M. Roberts 2007-9-11 6568 Orange Aliso Viejo: tributary to Aliso Creek on west side of Moulton Pkwy., 0.2 km N Aliso Viejo Pkwy., adj. to Kinder Care Learning Center. 83 Comment
  UC2046883  Ficus microcarpa R. E. Riefner Jr. 2014-7-13 14 -222 Orange City of Irvine, S side of Red Hill Ave. bridge E of 405 Freeway north-bound lane. Comment
  RSA627759  Filago californica Scott D. White 1998-3-24 6229 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
  UCR102018  Filago gallica B. G. Pitzer 1997-3-25 3021 Orange San Joaquin Hills, Crystal Cove State Park, Pelican Point Area, grassland between Pacific Coast Hwy and the bike trail 30 Comment
  SEINET8465144 Image available Foeniculum vulgare Virginia Carlson 1967-10-11 Orange Near eastern boundary of Fullerton Golf Course north of Bastanchury Road. Comment
  RSA699264  Fragaria John Murphy 1938-6-6 s.n. Orange Birch Park Comment
  LA207703  Frangula californica W. E. Pequegnat; August 1937 sn Orange Santa Ana Mountains, Santiago Peak 1706 Comment
  CAS-BOT-BC63068  Frangula californica subsp. californica P. C. Everett 1936-9-19 8268 Orange Santa Ana Mts., Silverado Canyon. In vicinity of Forest Service Road gate. 762 Comment
  CAS-BOT-BC63073  Frangula californica subsp. californica John Thomas Howell 1927-6-26 2605 Orange Claymine Canyon, n. Santa Ana Mts. 457 Comment
  SD120875  Frangula californica subsp. californica Reid Moran 1975-7-18 22598 Orange near Yeager Mine, upper Trabuco Canyon, Santa Ana Mountains 725 Comment
  SBBG27470  Frangula californica subsp. cuspidata P. C. Everett 1935-6-18 Orange summit of Santiago Pk 1731 Comment
  RSA660593  Frangula californica subsp. cuspidata R. E. Riefner 2000-8-8 20 -718 Orange NCCP North Ranch Policy Plan Area. NE property; E slope of upper Fremont Cyn.; S of Donaldson Ranch area and S of powerline / National Forest boundary. 454 Comment
  RSA391399  Frankenia grandifolia Albert J. Perkins 1917-10-14 s.n. Orange Salt marsh at mouth of Aliso Canyon. Comment
  RSA391400  Frankenia grandifolia Albert J. Perkins 1923-6-28 s.n. Orange Laguna Beach. Comment
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Jul 15 2013
  RSA80823  Frankenia grandifolia var. campestris F. W. Peirson 1924-5-31 4659 Orange Laguna Canyon near Laguna Beach 91 Comment
  CAS-BOT-BC223806  Frankenia salina L. R. Abrams 1917-6-23 6562 Orange Balboa Comment
  SBBG72757  Frankenia salina M. N. Ackley -May-1926 358 Orange Sunset Beach 8 Comment
  UC1543183  Frankenia salina Donald G. Nelson 1935-6-27 331 Orange beaches s Corona del Mar (on bluffs facing ocean, near edge of salt marsh in ravine, s of mouth of Newport Bay) Comment
  UCR158094  Frankenia salina Adrian Wolf 1998-5-27 328 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
  RSA554469  Frasera parryi Don Pendleton 1992-5-16 92 -18 Orange Cleveland National Forest, NW of El Cariso, on trails near Flacoln Group Camp. 823 Comment
  IRVC29832  Fraxinus Tom McCrainie, Mark A. Elvin 2006-9-23 6 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
  RSA716728  Fraxinus Fred M. Roberts 2005-5-13 6186 Orange San Juan Capistrano; 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
  RSA0042150  Fraxinus dipetala Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49687 Orange Northern Santa Ana Mountains: Sierra Peak. [locality information from field label; note on newspaper 'N slope Pleasant's Pk, 1.5 mi. S Beek's Place]. 900 Comment
  RSA663274  Fraxinus dipetala R. E. Riefner Jr. 2000-2-19 20 -119 Orange Santa Ana Mtns. NCCP North Ranch Policy Plan Area. Fremont Canyon: N. of Santiago Creek and immediately N. of major stream fork. 305 Comment
  UCR119309  Fraxinus dipetala R. E. Riefner Jr. 2000-2-19 20- 119 Orange Santa Ana Mountains, North Ranch Policy Plan Area. Fremont Canyon: north of Santiago Creek and immediately north of major stream fork 305 Comment
  UCR261699  Fraxinus dipetala Dick Newell, Judy Booth 2014-5-15 371 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, Maple Springs Rd./Silverado Canyon Rd., 0.87 road miles east of the lower Maple Springs gate 623 Comment
  SBBG120620  Fraxinus velutina A. C. Sanders, F. M. Roberts, M. Balk 2006-7-20 33043 Orange San Juan Cyn from Lower San Juan Picnic Area to ca. 1 mi downstream, parallel to Hwy 74 and near Riverside Co line 366 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
  RSA652106  Fumaria officinalis Phil Goodwin 1948-2-6 s.n. Orange Found in an orchard 3 miles east of Orange. 122 Comment
  RSA184096  Fumaria parviflora I. L. Wiggins 1966-2-16 20445 a Orange Orange grove N side of Yorba Linda Blvd, near corner of Associated road, Fullerton Comment
  UCSB52911  Funastrum cynanchoides var. hartwegii Roberts, Fred; Pedderson, G. 1984-9-5 Orange Coto de Caza: Wagon Wheel Canyon, 6.4km NNE Median Survey Mark; 1.0km SE Bench Mark 657, 290 Comment
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Oct 28 2018
  UCR192724  Galinsoga parviflora A. C. Sanders, Fred M. Roberts 2008-5-6 35226 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hicks Canyon, just above tollway (Hwy 241) crossing on Irvine Haul Rd., near debris basin 216 Comment
  RSA0013915  Galium angustifolium Fred M. Roberts 2012-5-10 7579 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
  SEINET269587  Galium angustifolium O. F. Clarke 1994-6-17 Orange Laguna Canyon. Comment
  UCR247904  Galium angustifolium Fred M. Roberts 2013-6-12 7790 Orange Peninsular Ranges, SANTA ANA MTNS.: Lower Silverado Canyon along Silverado Creek on north side of Silverado Canyon Road, 0.6 km ENE Silverado School and 1.4 km up stream Black Star Road crossing. 320 Comment
  UCR281586  Galium angustifolium Mitch Provance 2017-6-9 617- 90 Orange Coyote Hills, North Fullerton, East side of Gilbert St., 0.25 miles NNE of intersection with Castlewood Dr. 164 Comment
  POM18138  Galium angustifolium subsp. angustifolium Philip A. Munz 1923-9-7 7761 Orange Santa Ana Mts. Trail from Trabuco Canyon to summit. 1220 Comment
  RSA67768  Galium angustifolium subsp. angustifolium G. R. Campbell 1951-5-30 16095 Orange San Juan Canyon, Ortega Hwy, 4 mi. inside west border of Cleveland National Forest 152 Comment
  UC578648  Galium angustifolium subsp. angustifolium A. Lewis May 1934 411 Orange Trabucco Canyon Elsinore Quadrangle 1219 Comment
  POM186338  Galium angustifolium subsp. angustifolium Joseph A. Ewan 1932-7-29 7736 Orange Road around Newport Lagoon. Comment
  POM8759  Galium aparine Philip A. Munz, R. D. Harwood 1920-4-24 3754 Orange Santa Ana Mountains, Sierra [Freemont] Canyon. 366 Comment
  UCR192213  Galium aparine A. C. Sanders, Fred M. Roberts 2008-5-6 35252 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
  UCR140795  Galium nuttallii Robin G. Marushia 2004-4-16 021 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
  JEPS74654  Galium porrigens Lauramay T. Dempster and G. L. Stebbins 1967-3-21 4351 Orange 1 mi nw Cock's Corners (on road to Modjeska's Home, shallow canyon) Comment
  UCR191347  Galium porrigens A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34632 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
  RSA749290  Galium porrigens var. porrigens Fred M. Roberts 1999-4-2 5168 Orange Lomas de Santiago: Loma Ridge, Dripping Springs Spur Rd., 2.3 km W Silverado Sch. and 5.1 km NW Bolero Lookout. 450 Comment
  IRVC26431  Galvezia speciosa Mark A. Elvin 2004-2-22 3153 Orange UCI Arboretum Southern Coastal 15 Comment
  IRVC1379  Garrya A. S. Boughey 1965-3-16 59 Orange Santa Ana Mtns: Silverado Cyn. Peninsular Ranges Comment
  CAS-BOT-BC178505  Garrya flavescens Carl B. Wolf 1933-8-24 5383 Orange Along Main Divide Motorway between Bedford Pk. & Santiago Pk, Santa Ana Mts. Comment
  IRVC24227  Garrya flavescens Fred M. Roberts, Gordon A. Marsh, Karlin G. Marsh 1985-10-1 2287 Orange Santa Ana Mountains; Silverado Canyon, Silverado Truck Trail, 1.5km NW Shrewsbury Spring. Peninsular Ranges 766 Comment
  RSA101783  Garrya flavescens var. pallida R. Weatherby 1950-2-25 1023 Orange Harding Canyon, Santa Ana Mountains. 579 Comment
  RSA171101  Garrya flavescens var. pallida Robert F. Thorne 1963-7-26 32831 Orange Santa Ana Mts., Cleveland National Forest, Trabugo District. 1189 Comment
  RSA5344  Garrya flavescens var. pallida B. D. Stark 1933-1-4 4497 Orange Bottom of Claymine Canyon. No. end of Santa Ana Mts. 305 Comment
  SEINET10728263  Gazania David B. Dunn 1971-8-13 Dunn 18118 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
  UCR253010  Geranium anemonifolium Robert DeRuff 2012-3-7 579 Orange South Coast, Newport Back Bay, Northstar Beach park near Newport Aquatic Center 5 Comment
  SD232261  Geranium carolinianum Scott D. White, Brian Leatherman 1997-5-6 5037 Orange Santa Ana Mtns.: Santiago Canyon area. Unnamed tributary to Santiago Ck. Flowing from the SW, directly west of Pancho Cyn. Lomas de Santiago S 179. 366 Comment
  UCR253009  Geranium incanum Robert DeRuff 2012-3-9 580 Orange South Coast, Newport Back Bay, Northstar Beach park near Newport Aquatic Center 5 Comment
  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
  SEINET7073429  Gilia angelensis A. G. Vestal 1963-4-24 s.n. Orange La Paz Canyon, Rancho Mission Viejo. Coordinate datum: NAD27. Comment
  RSA470265  Gilia capitata subsp. abrotanifolia Anstruther Davidson s.n. Orange Corona Del Mar Comment
  RSA698350  Gilia multicaulis R. H. McArthur s.n. Orange Gypsum Canyon. Comment
  RSA698352  Gilia multicaulis Dorothy Sammis s.n. Orange Santa Ana Canyon. Comment
  IRVC449  Gnaphalium bicolor B. Simpson 1965-5-1 Orange Silverado Canyon. Santa Ana Mountains Comment
  POM358935  Gnaphalium californicum E. A. McGregor 1964-6-4 s.n. Orange On Highway 74, between Elsinor and San Juan Capistrano. 914 Comment
  RSA859  Gnaphalium californicum J. T. Howell 1927-6-24 207 Orange Aliso Canyon, Rancho Santa Ana. 366 Comment
  RSA590945  Gnaphalium californicum Fred M. Roberts 1991-5-2 4780 Orange San Joaqui Hills, Laguna Canyon, Laguna Laurel, Just W of Laguna Canyon Road, 2km N jct El Toro Road, 4.5km E Signal Peak. 110 Comment
  IRVC23151  Gnaphalium stramineum Fred M. Roberts 1985-7-11 2021 Orange San Joaquin Hills: Laguna Canyon, Laguna Canyon Road near Laguna Lakes, 5.0km ENE Signal Peak. southern coastal 112 Comment
  UCR100580  Gnaphalium stramineum B. G. Pitzer 1996-4-30 2764 Orange South Coast, Upper Newport Bay, Calif. Dept. Fish & Game Ecological Reserve, off (W of) Jamboree Road 6 Comment
  RSA703385  Gnaphalium stramineum R. E. Riefner Jr. 2004-5-6 04 -173 Orange Newport Beach, north side of Pacific Coast Hwy., west of Bayside Drive near Newport Dunes Beach Club. 10 Comment
  RSA698231  Godetia bottae G. Gentges 1932-5-8 s.n. Orange Silverado Canyon Wash. Comment
  RSA0012753  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
  CAS-BOT-BC305206  Grindelia hirsutula Carl B. Wolf 1932-7-2 3810 Orange Olinda. Valencia Ave., opposite Olinda Pilgrim Church 152 Comment
  UC1543105  Grindelia hirsutula Donald G. Nelson 1935-6-27 333 Orange on bluffs facing ocean beaches s Corona del Mar (s of mouth of Newport Bay) Comment
  RSA17135  Guillenia lasiophylla E. R. Johnson 1936-4-27 7776 Orange Rancho Santa Ana, Santa Ana cayon, in Canyon W of Tennis court, Botanic Garden. 168 Comment
  IRVC8688  Gutierrezia californica Charles W. Sexton 1965-3-27 Orange Ortega Highway out of San Juan Capistrano Southern Coastal Comment
  SD72732  Gutierrezia californica F. R. Fosberg 1931-6-21 S 5084 Orange Lower Santiago Canyon. 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
  UCR192102  Gutierrezia californica A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35288 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir 300 Comment
  SD245269  Gutierrezia californica R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49629 Orange Santa Ana Mountains: San Juan Canyon, along Ortega Highway (74) across from San Juan Fire Station. Comment
  UCR18041  Haplopappus menziesii A. C. Sanders, W. W. Wright 1974-5-28 00133 Orange South Coast, Newport back bay [Upper Newport Bay], along Bayside Drive 30 Comment
  RSA554631  Haplopappus venetus Scott D. White 1992-9-29 897 Orange Vinicity of Brea, immediately N of Carbon Canyon Rd & E of Placentia Ave., +/- 1 mi. (airline) S/SE of Tonner Canyon. 183 Comment
  RSA0066588  Harpagonella palmeri Fred M. Roberts, Carol A. Roberts, Dave Bontrager 1990-4-28 4587 Orange Rancho Mission Viejo: Christianitos Canyon, 4.0 km E Playa Survey Marker. 174 Comment
  LA203734  Hazardia squarrosa var. grindelioides W. Pequegnat; 1937-8-31 sn Orange Santa Ana Mountains, Indian Canyon, (Seen also in branch of Trabuco Canyon about 3000 ft.) 365 Comment
  RSA5276  Hazardia squarrosa var. grindelioides B. D. Stark 1932-12-15 4452 Orange Rancho Santa Ana, slope above grove #4 145 Comment
  RSA725518  Hedera helix Fred M. Roberts, Robert L. Allen 2007-9-28 6612 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
  RSA678459  Hedypnois cretica Valerie L. Soza, Kim Clark, LeRoy Gross, Will Miller, Fred M. Roberts, Gary D. Wallace 2001-4-4 1118 Orange Anaheim Bay: Seal Beach U. S. Naval Weapons Station, southwestern edge of Seal Beach National Wildlife Refuge. 3 Comment
  RSA685925  Hedypnois cretica Fred M. Roberts 2003-3-27 5624 Orange Rancho Mission Viejo:Donna O'Neill Land Conservancy, Chistianitos Canyon, along North Ride Trail, 1.37 km N Sycamore Gate, 0.36 km W Chistianitos Rd. 114 Comment
  RSA751327  Hedypnois cretica A. C. Sanders, Fred M. Roberts 2008-5-6 35261 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
  RSA39337  Hedypnois cretica E. L. Paddock 1943-5-29 12743 Orange S of Devdar, 1/4 mile E of Carolina Ave extension, Brea. Comment
  UC537124  Helenium puberulum Lawrence M. Booth 1932-7-19 1285 Orange Bolsas Marsh Comment
  CAS-BOT-BC402190  Helianthemum scoparium R. F. Thorne; E. W. Lathrop; W. Wisura 1977-4-27 49679 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. 457 Comment
  POM12888B  Helianthemum scoparium var. vulgare P. A. Munz, J. M. Johnston, I. M. Munz 1922-5-18 5307 Orange Santa Ana River Canyon. 274 Comment
  CAS-BOT-BC305446  Helianthus annuus John Thomas Howell 1927-7-27 2846 Orange Hills on n. side of Santa Ana Canon [Canyon] 152 Comment
  IRVC772  Helianthus annuus D. DeVault 1965-3-28 Orange Corona del Mar, Bayside Dr. and Jamboree Rd. Newport Beach Comment
  RSA704934  Helianthus annuus Arthur Davenport 2004-7-6 s.n. Orange Santa Ana River Canyon: Santa Ana River, Featherly Regional Park near La Palma Ave. SE of Horseshoe Bend. 104 Comment
  RSA734760  Helianthus annuus A. C. Sanders, Fred M. Roberts 2008-5-6 35217 Orange Lomas de Santiago, lower Hicks Canyon near Irvine Ranch gate and road junction to cement plant 180 Comment
  UCR193063  Helianthus annuus A. C. Sanders, Fred M. Roberts 2008-5-6 35217 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hicks Canyon near Irvine Ranch gate and road junction to cement plant 180 Comment
  UCR73132  Helianthus annuus Scott D. White 1992-9-23 853 Orange Vicinity of Olinda, near city of Brea, immediately north of Carbon Canyon Road and east of Placentia Ave.; c. 1 mi. (airline) SSE of Tonner Canyon 183 Comment
  POM359985  Helianthus annuus subsp. lenticularis Josephine Derigo 1941-7-25 s.n. Orange Canyon road to Laguna Beach, California. open feilds and road side. Low lands Comment
  RSA184154  Helianthus annuus subsp. lenticularis I. L. Wiggins 1965-5-24 20285 Orange Roadside along Skyline Dr. near intersection with Raymond St. Fullerton. Comment
  RSA39326  Helianthus annuus subsp. lenticularis E. L. Paddock 1943-5-29 12745 Orange South Pacific Electric Railway, 1/4 mile northwest of Brea-Clinda crossing Comment
  RSA643433  Helianthus ciliaris R. D. Goeden, D. W. Ricker 1965-7-7 s.n. Orange Laguna Hills: Veeh Ranch, ca. 1.5 mi. W of El Toro. 91 Comment
  UCR80232  Helianthus ciliaris E. L. Paddock 1942-7-21 11291 Orange Toler Ranch, north side Ocean Ave., 1/4 mi west of La Mirada Rd., La Habra Comment
  CAS-BOT-BC305658  Helianthus ciliaris E. L. Paddock 1941-8-1 s.n. Orange Graham-Loftus property, 2 miles east of Brea Comment
  CDA6543  Helianthus ciliaris T. C. Fuller 1962-6-7 8874 Orange Veeh ranch, north of El Toro, ca. 11 miles southeast of Tustin. 0 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
  RSA263727  Helianthus gracilentus E. W. Lathrop 1970-1-28 7125 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  UCR192093  Helianthus gracilentus A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35293 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir 300 Comment
  IRVC783  Helianthus petiolaris subsp. petiolaris B. Leach 1964-3-8 Orange hills. El Toro 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
  CSUSB741  Heliotropium curassavicum var. oculatum Dave Cerf 1971-5-2 Orange Orange Park Acres. Windes Road. - 1/2 mile from the end of road (southwest). 243 Comment
  CSUSB739  Heliotropium curassavicum var. oculatum Cesareo Perez 1971-5-15 Orange Huntington State Beach Pacific Coast Highway @ Brookhurst, Huntington Beach, CA. Comment
  POM202725  Heliotropium curassavicum var. oculatum L. M. Booth 1932-6-9 1172 Orange Santa Ana River, 1 mile from ocean. Comment
  RSA254941  Hemizonia australis C. W. Tilforth 1975-9-6 1047 Orange Upper Bay, Newport Beach: North-east shoreline. Comment
  RSA572919  Hemizonia australis J. Mallory 1993-8-27 6366 -D-01 Orange At. NW portion of Mesa, approximately 10m S of pipes, powerpoles metal building and old water tank, S. of Los Patos Ave, Bolsa Chica Wetlands. Comment
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Sep 4 2013
  RSA702702  Hemizonia fasciculata Scott D. White, Michael Honer 2004-5-17 10386 Orange South Coast: City of Laguna Niguel. Ridges and open slopes directly north of the intersection of Crown Valley Parkway and Pacific Island Dr. 61 Comment
  RSA74880  Hemizonia fasciculata Elroy Robinson 1935-6-26 s.n. Orange Along Santa Fe Railway, El Toro, south of Los Angeles. Comment
  CAS-BOT-BC26068  Hemizonia parryi subsp. australis David D. Keck 1933-9-29 2537 Orange Seal Beach. Comment
  UCR157704  Hemizonia parryi subsp. australis Adrian Wolf 1998-5-27 326 Orange South Coast, Newport Slough, south of oil fields, between Huntington Beach, Costa Mesa and Newport Beach, just south of the channelized mouth of the Santa Ana River 2 Comment
  CAS-BOT-BC167001  Heteromeles arbutifolia T. B. Salvato 2010-10-27 5138 Orange South Coast: Dana Point Headlands, Hilltop Park, north of Scenic Dr. and west of Green Lantern St., overlooking Dana Point Harbor 84 Comment
  RSA0072402  Heteromeles arbutifolia Fred M. Roberts, B. Allen, D. Olsen 2007-1-19 6505 Orange Beek's Place along Main Divide Rd., 4.1 km NW Pleasant Peak. 852 Comment
  RSA786954  Heteromeles arbutifolia Robert F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49621 Orange Santa Ana Mountains: about 1 mile above San Juan Fire Station Comment
  UCR192076  Heteromeles arbutifolia A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35277 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir 300 Comment
  IRVC25170  Heterotheca grandiflora Fred M. Roberts, B. Fugle 1986-10-1 3148 Orange Laguna Hills; creek channel along Cabot Rd. ca. 1.0km N Pacific Park Pkwy. Southern Coastal 99 Comment
  RSA0075821  Heterotheca grandiflora Scott D. White, Matt Carlton 2003-11-20 9875 Orange Santa Ana Mountain foothills: San Juan Creek in San Juan Capistrano. 37 Comment
  UC912305  Heterotheca grandiflora Herbert L. Mason 1926-4-25 2901 Orange 5 mi s Laguna Comment
  UCD150987  Heterotheca grandiflora D. S. Park 2010-4-25 32 -2 Orange Whiting Ranch Wilderness Park, along trail. 226 Comment
  UCR223954  Heterotheca grandiflora Fred M. Roberts, Carol A. Roberts 2008-9-28 7110 Orange South Coast, Dana Point, Dana Point Headlands, CNLM Preserve near northeast Gate, 0.5 km west Marine Institute, Dana Point Harbor 75 Comment
  RSA708536  Heterotheca sessiliflora subsp. echioides Fred M. Roberts, Robert L. Allen, Chris Barnhill 2004-8-21 6104 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
  IRVC18573  Heterotheca sessiliflora subsp. fastigiata Karlin G. Marsh 1980-8-13 Orange S of Trabuco Canyon, Sect. 12, Hinricks Parcel. Santa Ana Mountains Comment
  UCR224404  Hibiscus trionum Robt. L. Allen 2008-4-9 s.n. Orange South Coast, Irvine, Irvine Valley College, near norhteast corner of Student Services building 45 Comment
  UCD150988  Hieracium argutum D. S. Park 2010-4-25 31 Orange Whiting Ranch Wilderness Park, along trail. 254 Comment
  RSA732170  Hirschfeldia incana A. C. Sanders, Fred M. Roberts 2008-3-25 34540 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  CAS-BOT-BC55404  Hirschfeldia incana Alice Eastwood 1936-4-5 s.n. Orange Santa Ana. Bixby Botanic Garden. Comment
  RSA405279  Hoffmannseggia glauca T. W. Minthorn s.n Orange Santa Ana Mnt. Comment
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Nov 15 2013
  CDA27090  Hoffmannseggia glauca Goodwin 1933-6-7 Orange 0 Comment
  POM201849  Hoita macrostachya L. M. Booth 1932-7-1 1236 Orange Anaheim Marsh Comment
  POM348811  Hoita macrostachya M. B. Dunkle 1934-6-18 3988 Orange San Juan Canyon, Southern Coastal. 305 Comment
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Oct 3 2011
  UC537011  Hoita macrostachya Lawrence M. Booth 1932-7-1 1236 Orange Anaheim Marsh Comment
  SEINET6654708  Holocarpha virgata subsp. elongata R. E. Riefner Jr. 2003-10-14 03 -421 Orange San Clemente State Beach, mima mound field in SW corner of park.; 0 27 Comment
  POM244252  Holodiscus discolor Percy C. Everett 1935-6-18 7221 Orange Santa Ana Mts: Summit of Santiago Peak. 1732 Comment
  UC1127989  Holodiscus discolor A. Lewis 1934-5-1 423 Orange Cleveland National Forest, Trabuco Canyon Trabuco Canyon; Cleveland National Forest, Trabuco Canyon 1280 Comment
  CAS-BOT-BC150005  Holodiscus discolor var. discolor E. R. Johnson 1933-6-22 5000 Orange Rancho Santa Ana, Santa Ana Canyon N.W. corner of ranch, 1/4 mi. E., 1/2 mi. S. 304 Comment
  RSA615545  Holodiscus microphyllus Fred M. Roberts Jr., Kirsten Winter, Leanne Naue 1997-6-5 5039 Orange Costa Mesa; Fairview Park, Just west of end of Canyon Drive, 0.1 km W Canyon School. 24 Comment
  RSA599591  Hordeum intercedens Fred M. Roberts, Nigel Hancock 1995-5-25 4946 Orange Costa Mesa: Fairview Park, just west of end of Canyon Drive, 0.1 km W Canyon School., UTM Z11 37 24 600mN, 4 12 700mE 24 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
  SD255611  Hordeum intercedens D. E. Bramlet 2001-5-15 3143 Orange Santa Ana Mountains Foothills: upper watershed of Deep Canyon, 1300ft E of Krum Reservoir, c. 2 miles SE of San Juan Capistrano, 1200 ft S of Avenida Placida, W of the Prima Desecha landfill (Dana Point 7.5'Q) 200 Comment
  JEPS71234  Hordeum marinum subsp. gussoneanum L. M. Booth 1932-5-12 1013 Orange Newport Bay Comment
  UCR37805  Horkelia cuneata subsp. cuneata Steve Boyd 1981-5-13 s.n. Orange South Coast, Pelican Hill, Irvine Ranch Property, San Joaquin Hills south of Corona del Mar 218 Comment
  CAS-BOT-BC537311  Horkelia cuneata var. puberula H. F. Copeland 1938-6-28 s.n. Orange Hills back of Laguna Beach Comment
  IRVC17879  Hulsea heterochroma G. Reynolds 1980-7-3 Orange along fire road, west side of Modjeska Peak, near top, Santa Ana Mountains Comment
  UCR240191  Hypericum canariense R. E. Riefner Jr. 2010-6-9 10- 56 Orange city of San Juan Capistrano, La Novia Ave. at Valle Road 45 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
  UCR192470  Hypochaeris glabra A. C. Sanders, Fred M. Roberts 2008-3-25 34538 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 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
  RSA743473  Isocoma menziesii var. sedoides Fred M. Roberts 2008-10-9 7123 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
  CAS-BOT-BC311654  Isocoma menziesii var. vernonioides Peter H. Raven 1957-9-28 11368 Orange N. limits of Surfside Comment
  SD136909  Isocoma menziesii var. vernonioides Steve Boyd, Tim Ross 1994-9-14 8344 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness area, Lucas Canyon trail at stream crossing in Aliso Canyon 341 Comment
  UCR267156  Isolepis cernua Robert Hamilton 2009-11-6 s.n. Orange South Coast, Newport Beach, seep near the corner of Superior Ave. and Pacific Coast Hwy [now, 2016, the site of Sunset Ridge Park] 8 Comment
  CLARK-A1528-2387  Isomeris arborea John C. Roos 1937-2-23 1314 Orange Laguna Hills Comment
  IRVC308  Isomeris arborea J. Schram 1965-4-30 Orange Corona del Mar, Corona Highlands gully. Newport Beach Comment
  UCR222627  Isomeris arborea T. B. Salvato 2010-10-27 5104 Orange South Coast, Dana Point Headlands, Harbor Point Park, south of Scenic Dr. and Cove Rd., beyond the end of Green Lantern St., overlooking Dana Point Harbor 70 Comment
  UCR240104  Jaumea carnosa Dick Newell, Judy Booth 2012-9-26 292 Orange South Coast, Newport Beach, Back Bay Drive at the Salt Dike 3 Comment
  POM122693  Jepsonia parryi Marcus E. Jones 1926-3-13 s.n. Orange Santa Ana Canyon. Comment
  CAS-BOT-BC426240  Jepsonia parryi F. W. Peirson 1919-11-8 1941 Orange Sea bluffs south of Arch Beach, near Laguna Beach Comment
  CAS-BOT-BC101917  Juglans californica John Thomas Howell 1927-7-27 2847 Orange Hills on n. side of Santa Ana [Canon] Canyon 152 Comment
  HSC13962  Juglans californica S. M. Clapp 1966-4-10 39 Orange 1 mi. N of Brea, on Brea Canyon Rd. 61 Comment
  LA205692  Juglans californica C. B. Wolf; 1934-9-21 6141 Orange Brea Canyon, lower end of canyon, Puente Hills 600.0 +- ft Comment
  SD138020  Juglans californica Carl B. Wolf 1939-11-29 42257 Orange Orange County Picnic Grounds Comment
  RSA0011061  Juglans californica I. L. Wiggins 1965-5-27 20310 Orange Near Los Angeles County Line, along Brea Canyon Road. Comment
  RSA17266  Juglans californica var. californica Carl B. Wolf 1936-7-8 8103 Orange West side of Durant St. Santa Ana. 30 Comment
  UCD169190  Juglans hindsii R. E. Riefner Jr. 2011-9-10 11- 124 Orange Santa Ana Canyon, I-91 northbound, S side of freeway, located within 100 ft of the Riverside County line. 127 Comment
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May 26 2020
  UCR229284  Juglans hindsii R. E. Riefner Jr. 2011-8-25 11- 114 Orange Trabuco Canyon, Trabuco Canyon Road c. 1 mi northwest of O'Neill Regional Park 319 Comment
  RSA22739  Juglans regia Carl B. Wolf 1939-11-29 9545 Orange Orange County Picnic Grounds, Comment
  RSA683232  Juncus acutus Scott D. White, Matt Carlton 2003-11-20 9861 Orange Santa Ana Mountain foothills; San Juan Creek in San Juan Capistrano; (Dana Point) 24 Comment
  JEPS66901  Juncus acutus subsp. leopoldii Lawrence M. Booth 1932-5-24 1102 Orange Newport Bay Comment
  UCSB48092  Juncus bufonius var. congestus Roberts, Fred 1981-4-12 Orange Santa Ana Mtns; San Juan Cyn; Hwy 74; 1.3km by road E San Juan Guard Station; 0.9 km SE Juan Rancho SM 295 Comment
  RSA788923  Juncus dubius Fred M. Roberts 1999-6-23 5245 Orange Peninsular Range, Santa Ana Mtns. Region: Lomas de Santiago: tributary to Santiago Creek, ridge between Limestone Cyn, and Santiago Creek wash across from Pancho Canyon, 1.6 km ENE Bolero Spr. and 1.6 km NNW Bolero Lookout. 396 Comment
  UCR193934  Juncus macrophyllus A. C. Sanders, Fred M. Roberts 2008-7-16 35859 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, upper Hangmans Tree Canyon 395 Comment
  RSA105  Juncus mexicanus J. T. Howell 1927-6-21 187 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA108  Juncus mexicanus J. T. Howell 1927-7-18 436 Orange Santa Ana River, Rancho Santa Ana. 152 Comment
  POM201838  Juncus mexicanus L. M. Booth 1932-12-26 1381 Orange Bolsas Marsh near coast highway. Comment
  RSA734854  Juncus patens A. C. Sanders, Mitch Provance 2008-5-20 35399 Orange 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
  RSA754063  Juncus patens A. C. Sanders, Fred M. Roberts 2008-7-16 35856 Orange Lomas de Santiago, upper Hangmans Tree Canyon 395 Comment
  UCR193851  Juncus patens A. C. Sanders, Fred M. Roberts 2008-7-16 35856 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, upper Hangmans Tree Canyon 395 Comment
  RSA110  Juncus rugulosus J. T. Howell 1927-7-18 423 Orange Santa Ana River, Rancho Santa Ana. 152 Comment
  UCR174221  Juncus rugulosus A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33025 Orange Peninsular Range; Santa Ana Mtns., San Juan Canyon, from Lower San Juan Picnic Area to c. 1 mile downstream, parallel to Hwy 74 and near Riverside Co. line 396 Comment
  RSA749054  Juncus textilis A. C. Sanders, Fred M. Roberts 2008-8-7 35994 Orange lower Weir Canyon, at narrow gorge c. 0.6 mi. above mouth of cyn at Irvine Ranch gate 185 Comment
  RSA788802  Juncus textilis Robert F. Thorne 1977-11-21 49984 -a Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp Comment
  RSA104  Juncus torreyi J. T. Howell 1927-7-14 399 Orange Santa Ana River, Rancho Santa Ana. 152 Comment
  POM1593  Juncus xiphioides C. B. Bradshaw 1903-9-25 s.n. Orange Silverado Canyon. Comment
  RSA21231  Juniperus californica E. R. Johnson 1937-3-28 8502 Orange 4 9/10 mi. E. of San Juan Capistrano on No. side of Ortega Highway. Comment
  CAS-BOT-BC383068  Juniperus rigida var. conferta R. E. Riefner, Jr. 2014-3-17 14 -72 Orange City of Newport Beach, beach area between Shorecliff Road and Cameo Shores Road 18 Comment
  RSA765301  Keckiella antirrhinoides Doris Bowers 1971-4-9 1697 Orange SW of Corona, Santa Ana Mts. 457 Comment
  UC1063326  Keckiella antirrhinoides A. Lewis Mar 1934 340 Orange Santa Ana Canyon; Corona Quad. 152 Comment
  UC1063331  Keckiella antirrhinoides R. St. John 1931-3-31 201 Orange Mouth of Silverado Canyon; Corona Quad. 365 Comment
  CAS-BOT-BC235532  Keckiella antirrhinoides var. antirrhinoides A. J. Perkins 1909-6-1 s.n. Orange Orange County Park Comment
  RSA401777A  Keckiella cordifolia M. B. Dunkle 1933-5-30 s.n. Orange Carbon Canyon Comment
  RSA542499  Keckiella cordifolia Fred M. Roberts, Karlin G. Marsh 1988-4-25 3935 Orange San Joaquin Hills: Los Trancos Canyon, 0.8 kilometer SE Pelican Hill. 81 Comment
  RSA7393  Keckiella ternata subsp. ternata Carl B. Wolf 1933-8-24 5405 Orange Summit of Santiago Peak, Santa Ana Mountains. 1732 Comment
  UCR227628  Keckiella ternata subsp. ternata Robt. L. Allen 2003-6-22 12296 Orange Peninsular Range; Santa Ana Mountains, northeastern flank of Santiago Peak, along North Main Divide Road 1505 Comment
  RSA683235  Kickxia elatine Scott D. White, Matt Carlton 2003-11-20 9866 Orange Santa Ana Mountain foothills; San Juan Creek in San Juan Capistrano; (San Juan Capistrano). 24 Comment
  SD134374  Kickxia elatine Craig Reiser 1991-7-1 Orange Live Oak Road near the foothills of the Santa Ana Mountains Comment
  RSA734810  Koeleria macrantha A. C. Sanders, Fred M. Roberts 2008-3-25 34579 Orange Saddle on ridge near head of Weir Canyonm, 5.3 miles ENE of Villa Park, 3.1 mi. N of (Santiago Reservoir) Irvine Lake 405 Comment
  UCR150914  Koeleria macrantha Valerie Soza, LeRoy Gross 1999-6-10 528 Orange Santa Ana Mountains, Southwestern extension of Modjeska Peak, off dirt road to summit, off Main Divide Road 1555 Comment
  UCR192451  Koeleria macrantha A. C. Sanders, Fred M. Roberts 2008-3-25 34579 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
  RSA0069226  Koelreuteria bipinnata Fred M. Roberts 2008-9-3 7081 Orange Yorba Linda: Santa Ana River Canyon, Santa Ana River, 0.6 km W Gypsum Cyn. bridge, south of La Palma Ave. 113 Comment
  SEINET3386499 Image available Koelreuteria bipinnata R. E. Riefner Jr. 2006-1 673 Orange South Coast: Irvine, along San Diego Creek at Campus Ave. 4 Comment
  UCR184669  Koelreuteria bipinnata Dean Kelch 2006-12-9 06 .556 Orange Irvine. University Dr. along tidal Creek just east of I-73 9 Comment
  UCR186506  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
  SD80932  Laennecia coulteri James Henrickson 1970-8-22 5297 Orange Bolsa Chica Salt Marsh,dry northern portion, 2.5 miles northnorthwest of Huntington Beach Comment
  UC485371  Laennecia coulteri C. F. Millspaugh 1920-1-19 4602 Orange Middle Ranch Comment
  RSA716769  Lagunaria patersonia Fred M. Roberts, Chris M. Barnhill 2004-7-10 6074 Orange Laguna Beach: Heisler Park, 0.14km E Recreation Point just above beach. 619 Comment
  UCR246471  Lagunaria patersonia R. E. Riefner Jr. 2004-12-23 04- 557 Orange South Coast, city of San Clemente, vicinity of San Clemente Pier at Ave. Del Mar 3 Comment
  UCD63274  Lagurus ovatus R. M. Love 1942-4-16 10 Orange 8 mi. east of Santa Ana. Comment
  RSA687519  Lamarckia aurea Fred M. Roberts, David E. Bramlet 2003-4-10 5650 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
  UCR192490  Lamarckia aurea A. C. Sanders, Fred M. Roberts 2008-3-25 34557 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  UCR5211  Lamarckia aurea Barbara T. Gittins, O. F. Clarke 1966-3-19 892 Orange Pacific slope, Irvine Ranch, east of University of California Irvine campus, Newport Beach 91 Comment
  UCR193033  Lamium amplexicaule A. C. Sanders, Mitch Provance 2008-5-20 35401 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
  UCR186589  Lantana camara Robert DeRuff 1995-4-16 482 Orange Southern Coast, Newport Beach, Newport Back Bay, Northstar Beach 6 Comment
  UC718548  Lasthenia glabrata subsp. coulteri Carl B. Wolf 1935-3-24 6295 Orange Comment
  UCR240171  Lasthenia glabrata subsp. glabrata R. E. Riefner Jr. 2012-5-5 12- 85 Orange South Coast, city of San Clement, Antonio Parkway, c. 0.25 mi north of Hwy 74 88 Comment
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Apr 7 2021
  UC891317  Lasthenia gracilis I. W. Clokey 1932-3-1 5325 Orange Sugar Loaf below Arch Beach Comment
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Nov 2 2011
  UCSB48051  Lasthenia gracilis Fritzke, S.; Roberts, Jr., Fred 1982-4-3 Orange Dana Point; hills, 1.0 km. N of Dana Hills High School; 1.9 km. W of Marco Forster Junior High School 100 Comment
  RSA0010308  Lasthenia gracilis J. D. Olmsted 1959-4-23 467 Orange Hidden Ranch in Black Star Canyon, 5 miles east of Irvine Lake. Drainage area to Irvine Res[ervoir]; Mt. Range: Santa Ana Mountains. 640 Comment
  CSUSB1272  Lathyrus laetiflorus Geoffrey Matthews 1971-5-15 Orange 3 miles north of Morrill Valley Comment
  RSA405728  Lathyrus vestitus subsp. alefeldii H. L. Bauer 1929-4-20 s.n. Orange Trabuco Canon. Comment
  RSA12902  Lathyrus vestitus subsp. alefeldii P. C. Everett 1935-2-10 6292 Orange At base of West Ladd Trick Trail, mouth of Baker Canyon, Santa Ana Mountains 335 Comment
  UC1595602  Lathyrus vestitus var. alefeldii Fred M. Roberts Jr. and Carol A. Roberts 1989-4-7 4265 Orange Aliso-Wood Canyon Regional Park: Upper Wood Canyon, ca 0.5 km SW Moulton Peak. 102 Comment
  UCR103214  Lathyrus vestitus var. vestitus Scott D. White 1997-2-19 4698 b Orange Santa Ana Mtns, above Modjeska Canyon; proposed water tank site 488 Comment
  RSA697123  Layia platyglossa Minor Warne 1934-4-21 s.n. Orange Santiago Canyon. Comment
  RSA699675  Layia platyglossa Keith E. Hoffmaster 1935-4-19 s.n. Orange Santiago can. near Silverado ca., Santa Ana Mountains. Comment
  POM6370  Layia platyglossa subsp. campestris P. A. Munz, L. T. Street, Williams 1919-5-3 2646 Orange Santa Ana River Canyon. Comment
  RSA723966  Lemna gibba R. E. Riefner 2005-10-27 05 -730 Orange City of Huntington Beach, Huntington Central Park near Goldenwest St. 1 Comment
  RSA715699  Lemna minuta Fred M. Roberts, Chris M. Barnhill 2005-9-27 6280 Orange San Juan Capistrano: San Juan Creek wash, east of La Novia Road bridge, 1.4km E Mission San Juan Capistrano, 27 Comment
  RSA759148  Leontodon saxatilis Robt Allen 2008-4-9 s.n. Orange Irvine, Irvine Valley College, near N entrance to Student Services building. 53 Comment
  CDA25745  Leonurus sibiricus O. F. Clarke, A. C. Sanders 2008-2-19 s.n. Orange South Coast; Fullerton; weeds at California State University Fullerton Arboretum. Comment
  RSA300978  Lepechinia cardiophylla D. C. Michener 1982-8-4 4167 Orange Formerly disturbed area above main divide road ca 1/4 mile southeast of Beeks Place [5.9 miles west of jct of Chase & Skyline in Corona, off of latter].West side of divide above Tin Mine Canyon. 915 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
  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
  UCR186687  Lepidium latifolium T. B. Salvato, Katie Kurtz, Mitch Provance 2006-10-15 1908 Orange South Coast, Irvine, San Diego Creek flood control channel, between Campus Drive and Michelson Drive 6 Comment
  IRVC1093  Lepidium nitidum D. Orr 1965-4-10 Orange Trabuco Road, 3mi E El Toro Marine Base. El Toro Comment
  RSA627742  Lepidium nitidum Scott D. White 1998-1-26 6066 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
  UCR191339  Lepidium nitidum A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34648 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
  RSA0127408  Lepidium oblongum Fred M. Roberts 2016-5-20 8060 Orange City of Irvine: San Joaquin Hills, Turtle Rock Community along Ridge Route Road, 1.0 km SE summit of French Hill and just NE intersection with Hillsborough Drive. 122 Comment
  JEPS53733  Lepidium perfoliatum R. H. Holland 1913-5-15 Orange Orange Comment
  UCR193389  Lepidium strictum A. C. Sanders, T. B. Salvato 2008-5-13 35331 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
  UC537122  Lepidium virginicum Lawrence M. Booth 1932-5-24 1098 Orange Newport Lagoon Comment
  POM202605  Lepidium virginicum var. pubescens L. M. Booth 1932-5-24 24 Orange West Side of Newport Lagoon. Comment
  RSA703698  Lepidium virginicum var. robinsonii Fred M. Roberts, Arthur Davenport 2004-2-20 6025 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
  RSA776395  Lepidium virginicum var. robinsonii Orlando Mistretta, Christine Mistretta 2010-4-23 5072 Orange Vicinity of Diamond Bar. Hills just E of the State Hwy 57, N of Tonner Canyon Rd, along Southern California Edison transmission line corridor (Segment 8, map sheet 80 per TRTP survey 2010) 249 Comment
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Nov 17 2018
  POM55233  Lepidospartum squamatum J. C. McCoy 1892-9-15 5775 Orange Santa Ana. 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
  RSA734396  Lepidospartum squamatum Keith E. Hoffmaster 1935-4-14 598 Orange Trabuco creek., 1/4 mi. above CCC camp at Trabuco Oaks, Santa Ana Mts. 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
  UCSB48209  Lepidospartum squamatum Roberts, Jr., Fred 1981-7-8 Orange Rancho Mission Viejo; Calif. Rte. 74, 10 km. by road ENE San Juan Capistrano 101 Comment
  CAS-BOT-BC274367  Leptochloa Ira L. Wiggins 1965-11-5 20336 Orange Along west side of village of Atwood Comment
  RSA800662  Leptochloa fusca subsp. fascicularis Justin M. Wood 2010-9-29 2740 Orange Santa Ana Canyon: Santa Ana River, southwest of Green River Golf Course and north of Hwy 91 and Santa Ana River Trail. 128 Comment
  RSA226742  Leptochloa fusca subsp. uninervia I. L. Wiggins 1965-11-6 20336 Orange Along west side of village of Atwood. Comment
  SBBG128690  Leptosiphon floribundus subsp. floribundus R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49714 Orange Bedford Truck Trail, ca. 0.8 km below jct with Main Divide Truck Trail; Santa Ana Mtns Comment
  RSA576  Leptosiphon liniflorus J. T. Howell 1927-6-8 58 Orange Botany Garden, Rancho Santa Ana. [original location] 152 Comment
  RSA773545  Leptosiphon parviflorus Fred M. Roberts 1999-4-26 5197 Orange Lomas de Santiago: Lomas Ridge, tributary to Santiago Canyon Wash on ridge between Limestone Canyon and the wash, 1.4 km SE Silverado School, and 2.7 km N Bolero Lookout. 358 Comment
  UCR240081  Leptosiphon parviflorus Dick Newell, Don Millar 2012-5-22 258 Orange Peninsular Range; Santa Ana Mtns., on Lake View Rd. above Irvine Lake at State Spur Rd. 564 Comment
  RSA160419  Lessingia glandulifera var. glandulifera J. D. Olmsted 1959-9-22 984 Orange Along industrial waste waters bank from 3 miles clay works just N of Hwy 8-9 miles WSW of Corona, N of Santa Ana Mts. to Santa Ana River 140 Comment
  UC712169  Leymus condensatus Charles B. Fiker 1944-7-7 3137 Orange on Bill Rochester's ranch Trabuco Canyon Comment
  RSA108341  Leymus triticoides Frank W. Gould 1943-4-12 2101 Orange About 7 miles northeast of Anaheim, on sand railroad siding. Comment
  CAS-BOT-BC130579  Lilium humboldtii B. D. Stark 1927-9-6 s.n. Orange Claymine Canyon, Santa Ana Mts. 365 Comment
  RSA649674  Lilium humboldtii subsp. ocellatum R. E. Riefner 2000-6-30 20 -594 Orange NCCP North Ranch Policy Plan Area. N Fremont Canyon at Donaldson Ranch adjacent to powerline crossing on W fork of Fremont Canyon drainage. 427 Comment
  UC1789093  Limonium R. E. Riefner Jr. 2005-9-16 05 -667 Orange Upper Newport Bay, E of Bayside Dr. at Big Canyon Creek. 6 Comment
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Jan 7 2016
  RSA357146  Limonium californicum var. mexicanum Robert F. Thorne 1975-4-6 45583 Orange Head of Newport Bay. Comment
  RSA701802  Limonium duriusculum Fred M. Roberts 2000-6-5 5338 Orange Yorba Linda, along Hidden Hills Dr. near Sunbeam Lane, on ridge above Box Canyon 376 Comment
  UCR282154  Limonium duriusculum R. E. Riefner Jr. 2017-3-10 17- 75 Orange South Coast, city of Mission Viejo, along Olympiad Road near intersection with Alicia Parkway 253 Comment
  UCR186424  Limonium otolepis Robert DeRuff 1997-5-23 504 Orange Southern Coast, Newport Beach, Newport Back Bay, Delhi Channel 0 Comment
  POM311754  Limonium perezii Karen Hosterman 1956-4-7 500 Orange Laguna Beach city, on a cliff overlooking Crescent Bay. Santa Ana Mtn range, Pacific Ocean drainage. 2 Comment
  UCR106280  Limonium perezii B. G. Pitzer, M. Georgiady 1997-4-5 3091 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
  RSA731656  Limonium ramosissimum Fred M. Roberts 2007-10-29 6623 Orange Niguel Hill: Laguna Niguel, Seaview Park, 1.3 km ENE Aliso Peak. 265 Comment
  SEINET6045534  Linanthus E. W. Lathrop 1974-6-27 7420 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon. Cleveland National Forest. Comment
  POM212347  Linanthus californicus B. D. Stark 1931-3-12 1938 Orange Santa Ana Mountains, 3 miles north of Modjeska's home 305 Comment
  RSA2111  Linanthus californicus C. B. Wolf 1931-3-6 1831 Orange 1.5 miles below Trabuco Oaks along Trabuco Canyon Road 305 Comment
  RSA33575  Linanthus californicus N. C. Cooper 1944-6-4 1358 Orange San Juan Canyon. 610 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
  JEPS58363  Linanthus dianthiflorus Alice King Mar 1908 Orange Anaheim Comment
  SD27975  Linanthus dianthiflorus Carl B. Wolf 1932-3-8 2675 Orange I(c) mile No. of Corona Del Mar. Borders of Newport Bay 7 Comment
  CHSC116475  Linanthus floribundus subsp. floribundus R. F. Thorne; C. W. Tilforth, E. W. Lathrop 1977-4-27 49714 Orange Santa Ana Mountains: Bedford Truck Trail, ca. 0.8 km below junction with Main Divide Truck Trail. Comment
  RSA734681  Linanthus liniflorus A. C. Sanders, T. B. Salvato 2008-5-13 35337 Orange Lomas de Santiago, Santiago Canyon at mouth of Hangman Tree Canyon and lower Hangman Tree Cyn, c. 1/2 mile below Modjeska Canyon confluence. 366 Comment
  UCR193066  Linanthus liniflorus A. C. Sanders, T. B. Salvato 2008-5-13 35337 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
  RSA752710  Linaria canadensis Fred M. Roberts 2008-3-19 6787 Orange Dana Point: Dana Point Headlands, CNLM Preserve, 0.8km W Marine Institute, Dana Point Harbor. 60 Comment
  RSA627749  Linaria canadensis var. texana Scott D. White 1998-3-18 6212 Orange UCI Campus: Site of proposed Research Park, Southwest of main campus circle, ca. halfway between Berkley Ave. and new Freeway (Bonita Cyn.). Plains dissected by a series of gullies. 37 Comment
  RSA749524  Linaria canadensis var. texana Fred M. Roberts 2008-4-8 6849 Orange Lomas de Santiago: Loma Ridge, Upper Dripping Springs Cyn., 1.0 km NE Bee Peak, Irvine Ranch Conservancy. 458 Comment
  POM8811  Lithophragma affine subsp. mixtum P. A. Munz, R. D. Harwood 1920-4-24 3782 Orange Santa Ana Mountains, Sierra [Freemont] Canyon 366 Comment
  RSA468223  Lithophragma affine subsp. mixtum Albert J. Perkins 1913-4-27 s.n. Orange Trabuco Canon. Comment
  IRVC16249  Lobelia dunnii var. serrata Karlin G. Marsh 1977-9-23 Orange Holy Jim Canyon, Holy Jim Falls. Santa Ana Mountains Comment
  RSA704892  Lobularia maritima Doug Causey 1972-5-1 s.n. Orange 3 mi. E Irvine Lake Comment
  RSA0073645  Logfia filaginoides Fred M. Roberts, Lee Ann Caranza, Eliza Maher 2009-4-7 7146 Orange South Coast Region: DANA POINT HEADLANDS: Dana Point CNLM Preserve, 0.8 km WNW Dana Point Marine Institute at Dana Point Harbor. 50 Comment
  CAS-BOT-BC283492  Lolium multiflorum Carl B. Wolf 1932-6-13 3728 Orange Fullerton, Malvern, and Nicholas Avenues 53 Comment
  UCR170137  Lolium perenne subsp. multiflorum Jeffrey Ross, R. Zaka 1998-5-2 47 Orange South Coast, North side of San Joaquin Hills; William R. Mason Regional Park, near intersection of Yale Avenue and University Drive 27 Comment
  RSA5946  Lolium perenne subsp. multiflorum C. B. Wolf 1932-7-7 3858 Orange Pump house on Bryant Ave., 0.5 mile E of Los Alamitos Blvd. 8 Comment
  RSA0011620  Lolium temulentum Rankin s.n. Orange Costa Mesa. Comment
  RSA0011623  Lolium temulentum Rankin s.n. Orange Costa Mesa. Comment
  RSA1492  Lomatium dasycarpum subsp. dasycarpum E. R. Johnson 1929-4-11 1255 Orange Sierra Peak Trail. Comment
  RSA562804  Lomatium lucidum Steve Boyd, Timothy S. 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 roadgrade to upper homestead (corrugated steel building). 350 Comment
  CAS-BOT-BC234845  Lonicera subspicata var. denudata Helen D. Geis 1902-5-1 s.n. Orange Santiago Canon [Canyon] Comment
  RSA697960  Lotus americanus Domeroy 1929-5-19 s.n. Orange Old road to Orange Co. Park Comment
  RSA697965  Lotus eriophorus Minor Warne 1934-5-6 s.n. Orange Ortega Highway Comment
  POM50652  Lotus heermannii L. R. Abrams 1901-06 1812 Orange Santiago Peak Trail 915 Comment
  UCR191348  Lotus salsuginosus A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34631 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
  IRVC19937  Lotus salsuginosus subsp. salsuginosus Gordon A. Marsh, K. G. Marsh 1983-3-2 Orange burn area on ridge between Coal and Gypsum Canyons, Santa Ana Mountains Comment
  RSA687515  Lotus salsuginosus var. salsuginosus Fred M. Roberts, David E. Bramlet 2003-4-10 5653 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, ridges west of Cristianitos Canyon, 1.35km SW Gato Gate and 1.18km W Cristianitos Road. 192 Comment
  POM276672  Lotus scoparius Lyman Benson 1932-3-26 3200 Orange Dana Point. 60 Comment
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Apr 29 2008
  UC1129145  Lotus scoparius A. Lewis 1934-3-1 346 Orange San Juan Hills Corona Quad. 396 Comment
  UCR106309  Lotus scoparius B. G. Pitzer, M. Georgiady 1997-4-5 3099 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
  RSA406884  Lotus scoparius N. C. Cooper 1943-12-26 2015 Orange Corona Del Mar Comment
  SEINET2073834  Lotus scoparius R. Beal 1980-5-6 Orange Dana Point, above Pacific Ocean, top of sand hill. Comment
  RSA649262  Lotus strigosus T. Pringle 1966-3-22 68 Orange In Silverado Canyon Comment
  UC867303  Lotus strigosus I. W. Clokey 1932-3-1 5328 Orange Laguna Beach Comment
  UCR102008  Lotus strigosus B. G. Pitzer 1997-3-25 3030 Orange San Joaquin Hills, Crystal Cove State Park, Pelican Point Area, on bluffs immediately above beach, along trail that winds around restoration area and down to beach. 30 Comment
  IRVC18659  Lotus strigosus var. hirtellus Gordon A. Marsh 1981-4-15 Orange UCI Ecological Preserve; north-facing slope. Irvine Comment
  IRVC20398  Lotus strigosus var. strigosus Fred M. Roberts 1983-3-27 947 Orange Dana Point headlands: just south of Dana Strand Rd., 0.5km W Dana Point Harbor; 0.8km SSW Richard Henry Dana School, southern coastal 80 Comment
  IRVC2221  Lotus strigosus var. strigosus A. S. Boughey 147 Orange [San Juan Canyon], Ortega Hwy, 1mi E San Juan Guard Sta. Santa Ana Mountains Comment
  RSA406437  Lotus unifoliolatus M. B. Dunkle 1938-6-23 5382 Orange San Juan 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
  RSA717042  Ludwigia peploides Fred M. Roberts, Chris M. Barnhill 2005-9-27 6285 Orange San Juan Capistrano: San Juan Creek wash, east of La Novia Road bridge, 1.4km E Mission San Juan Capistrano. 27 Comment
  IRVC28914  Lupinus adsurgens R. E. Reifner 1994-5-22 94 384 Orange San Onofre State Beach; N boundary, W of Pico Ave. Southern Coastal Comment
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Nov 19 2013
  SEINET6932636 Image available Lupinus bicolor W. P. Vestal, A. G. Vestal 1955-3-24 3463 Orange Plano Trabuco, ca. 4 miles east of El Toro. Comment
  RSA407  Lupinus bicolor subsp. microphyllus J. T. Howell 1925-2-25 852 Orange Near Bee Canyon, Rancho Santa Ana. 152 Comment
  IRVC22012  Lupinus bicolor subsp. umbellatus Fred M. Roberts, Gordon Marsh 1985-3-12 1506 Orange mesa west of Ave. Pico and north of El Camino Real, 3.2km SSE Coyote Bluff; 0.6km E Bench Mark 16 (sect. 32), San Clemente 37 Comment
  RSA184093  Lupinus bicolor subsp. umbellatus I. L. Wiggins 1966-3-22 20546 Orange Silverado Canyon about 5 miles above Ranger Station, Cleveland National Forest. Comment
  IRVC2289  Lupinus bicolor subsp. umbellatus M. Savage 1965-4-4 HS 0427 Orange Corona Del Mar Southern Coastal Comment
  RSA788819  Lupinus excubitus Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49802 Orange Santa Ana Mountains: Trabuco Canyon Comment
  SBBG103895  Lupinus excubitus B. Pitzer, S. Hemstreet 1992-5-27 1964 Orange USFS Rd 3S04 to Blue Jay Group Cmpgrd, off St Hwy 74, ca. 2 air mi W of El Cariso Cmpgrd 762 Comment
  CAS-BOT-BC215311  Lupinus excubitus var. excubitus E. R. Johnson 1929-5-1 s.n. Orange RR embankment at W end of Santa Ana Canon [Canyon], E of Atwood 91 Comment
  CAS-BOT-BC216693  Lupinus excubitus var. excubitus Carl B. Wolf 1930-3-25 1936 Orange Esperanza Siding, Santa Fe RR Comment
  POM212330  Lupinus excubitus var. hallii Carl B. Wolf 1931-3-25 1936 Orange along Santa Fe R. R, 1 mile west of Esperanza , Santa Ana Canyon. 107 Comment
  RSA3253  Lupinus excubitus var. hallii B. D. Stark 1931-4-18 1939 Orange mouth of Gypsum Canyon, Santa Ana Mts. Comment
  UC82077  Lupinus excubitus var. hallii C. F. Baker 1903-4-1 4102 Orange Anaheim Comment
  CHSC13495  Lupinus hirsutissimus T. N. Casale 1974-3-11 3 Orange On side of road, ca. 7.3 mi ne of the Mission San Juan Capistrano on Hwy 74. 243 Comment
  RSA598965  Lupinus hirsutissimus Scott D. White 1997-3-28 4837 Orange Santa Ana Mountains: above Modjeska Canyon, proposed water tank site. 427 Comment
  RSA754066  Lupinus hirsutissimus A. C. Sanders, Fred M. Roberts 2008-7-16 35881 Orange Lomas de Santiago, Santiago Creek wash at and above the confluence of Hangmans Tree Canyon 358 Comment
  UC484238  Lupinus hirsutissimus C. B. Wolf 1931-3-6 1843 Orange 1/2 mi above Trabuco Oaks (Trabuco Canyon, w slope Santa Ana Mts.); w slope Santa Ana Mts., Trabuco Canyon, above Trabuco Oaks 457 Comment
  HSC14830  Lupinus hirsutissimus J. J. Wagoner 1965-4-11 23 Orange 1 mi. S of Modjeska Canyon along Irvine Rd. 183 Comment
  RSA413752  Lupinus latifolius subsp. parishii N. C. Cooper 1949-5-1 3949 Orange San Juan Canyon 610 Comment
  UC718433  Lupinus latifolius var. parishii P. C. Everett 1935-6-19 7229 Orange Main Divide Motorway Bear Spring (Bear Spring); Santa Ana Mts., Bear Spring 1219 Comment
  RSA542383  Lupinus longifolius Fred M. Roberts, T. Sholars, B. Stechmeyer 1988-3-29 3888 Orange Lomas De Santiago: Lomas Ridge, Santiago Canyon Road, 5.5km NW Silverado Canyon Road Jct. 256 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
  UCR223983  Lupinus sparsiflorus Dick Newell, Don Millar 2011-3-1 072 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Hicks Canyon Haul Road, above Jeffrey Rd. and below Hwy 241 crossing 175 Comment
  IRVC2349  Lupinus succulentus C. Thompson 1965-2-28 HS 0418 Orange Corona Del Mar: Corona Highlands Southern Coastal Comment
  IRVC2353  Lupinus truncatus A. S. Boughey 1965-3-9 18 Orange San Joaquin Hills. Southern Coastal Comment
  IRVC15186  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
  UCR253000  Lycium brevipes var. hassei R. E. Riefner Jr. 1995-3-19 95- 77 Orange South Coast, San Clemente State Beach 40 Comment
  CAS-BOT-BC233468  Lycium californicum Carl B. Wolf 1932-3-8 2686 Orange 1/2 mi. No. of Corona Del Mar, borders of Newport Bay 7 Comment
  OBI9188  Lycium californicum Dieter H. Wilken, Timothy LeBlanc 1966-1-7 621 Orange Dana Point, N of San Juan Capistrano 3 Comment
  RSA0038506  Lycium californicum R. E. Riefner Jr. 2012-11-24 12 -558 Orange city of San Clemente, Presidio Ave. c. 0.2 mi south of Ave. Pico 34 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
  IRVC29712  Lycopersicon esculentum Mark A. Elvin, Barry S. Nerhus 2006-11-4 5248 Orange Huntington Beach; 1.5 km SW of Wintersburg, SW of jct Slater and Goldenwest; Shipley Nature Center. Southern Coastal 1 Comment
  RSA0014850  Lythrum californicum Fred M. Roberts, Robert L. Allen, Chris Barnhill 2004-8-21 6109 Orange Caspers Wilderness Park, San Juan Cyn., Old San Juan Hot Springs, ca. 0.4km SW San Juan Ranger Station, north of SR 74. 214 Comment
  UC536934  Lythrum californicum Lawrence M. Booth 1932-6-4 1147 Orange Newport Lagoon Comment
  RSA638971  Madia gracilis Valerie L. Soza, LeRoy Gross 1999-6-8 496 Orange Santiago and Modjeska Canyons, above Tucker Wildlife Sanctuary, above the town of Modjeska 518 Comment
  SD234830  Madia gracilis A. C. Sanders, Mitch Provance 2008-5-20 35390 Orange Peninsular Range: Santa Ana Mountains: Lomas de Santiago, mouth of Hangman Tree Canyon just above confluence with Santiago Creek Canyon, c. 1/2 mile below Modjeska Canyon confluence (El Toro 7.5' Q) 366 Comment
  UCR18628  Madia gracilis John C. Roos 1960-5-30 s.n. Orange Peninsular Ranges; Santa Ana Mtns, ridge at head of Hagador Canyon 1070 Comment
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Jan 7 2013
  CLARK-A1528-5622  Madia sativa John C. Roos 1960-5-30 Orange Santa Ana Mountains Comment
  RSA433313  Malacothamnus fasciculatus F. R. Fosberg 1931-6-21 S- 5101 Orange Silverado Canyon, Santa Ana Mts. Comment
  RSA433316  Malacothamnus fasciculatus Albert J. Perkins 1923-6-28 s.n. Orange Laguna Cliffs Comment
  RSA95321  Malacothamnus fasciculatus F. W. Peirson 1924-5-31 4662 Orange Sea bluffs at Laguna Beach. Comment
  UC1122014  Malacothamnus fasciculatus var. fasciculatus A. Lewis Apr 1934 398 Orange Tomato Spring Canyon 182 Comment
  UC1392830  Malacothamnus fasciculatus var. fasciculatus R. F. Hoover 1968-6-10 11172 Orange Laguna Beach Comment
  SEINET4039761 Image available Malacothrix floccifera O. M. Clark 1947-1 14373 Orange Crescent Bay. Comment
  UCR228794  Malacothrix saxatilis Dick Newell, Don Millar 2011-5-24 161 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Hicks Haul Road 286 Comment
  RSA714449  Malacothrix saxatilis var. saxatilis R. E. Riefner 1999-5-22 99 -289 Orange City of Dana Point, beach west of Pacific Coast Hwy. South of Salt Creek near Ritz Carlton Hotel. 15 Comment
  RSA714450  Malacothrix saxatilis var. saxatilis R. E. Riefner 2000-9-19 00 -739 Orange City of Dana Point, west of Pacific Coast Highway., vicinity of Salt Creek Park and Ritz Carlton Hotel. 0 Comment
  RSA743460  Malacothrix saxatilis var. saxatilis Fred M. Roberts 2008-7-10 7068 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
  UCR209661  Malacothrix saxatilis var. saxatilis Fred M. Roberts 2008-5-16 6978 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
  CAS-BOT-BC347890  Malacothrix saxatilis var. tenuifolia John Thomas Howell 1927-6-9 2463 Orange Southern Puente Hills, in the Santa Ana Canon [Canyon] 152 Comment
  JEPS36606  Malacothrix saxatilis var. tenuifolia Lawrence M. Booth 1932-7-27 131 Orange Newport Bay Comment
  RSA773520  Malacothrix saxatilis var. tenuifolia Fred M. Roberts 1999-5-3 5211 Orange Lomas de Santiago: Loma Ridge, Central Limestone Canyon, west slope, 2.3 km NW Bolero Lookout and 0.5 km NE Bolero Spring 446 Comment
  UC582778  Malacothrix saxatilis var. tenuifolia P. A. Munz 1936-6-20 14177 Orange road at La Vida Springs Carbon Canyon Comment
  CAS-BOT-BC347887  Malacothrix saxatilis var. tenuifolia P. A. Munz 1936-6-30 14177 Orange Road at La Vida Springs, Carbon Canyon Comment
  CDA8325  Malacothrix saxatilis var. tenuifolia T. C. Fuller 1962-6-7 8875 Orange Brea Canyon Road to Pomona, 1.2 miles north of Brea. 0 Comment
  CDA1091  Malephora crocea D. G. Kelch 2006-12-9 6 .543 Orange Along Newport Back Bay Dr. in side canyon. Comment
  UCR67012  Malephora crocea A. C. Sanders 1990-10-6 10188 Orange South Coast, Newport Back Bay, SW side at North Star County Beach, SW end of the bay, c. 2 km inland from Hwy 1/ Pacific Coast Hwy 3 Comment
  UCSB34482  Malephora crocea Ferren, Wayne 1980-8-27 Orange Newport Backbay; just W of Backbay Drive, ca. 2 km. NE of Rt. 1, Newport Beach Comment
  LA62901  Malosma laurina W. E. Pequegnat; 1937-9-6 sn Orange Santa Ana Mountains, Ortega Rd Comment
  RSA13103  Malosma laurina Percy C. Everett 1935-10-29 2574 Orange Rancho Santa Ana, Santa Ana Canyon N of canal & Mexican houses. 122 Comment
  RSA447  Malosma laurina J. T. Howell 1927-7-16 415 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  SD43546  Malva assurgentiflora Carl B. Wolf 1944-11-29 11497 Orange Open field in vacant lots, southeast of Costa Mesa. 22 Comment
  UCR109662  Malva parviflora G. S. Nuessly 1980-11-27 s.n. Orange Tustin. SE corner of 17th St. and Yorba Ave. 52 Comment
  UCR140806  Malva parviflora Robin G. Marushia 2004-4-16 005 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
  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
  RSA649333  Malva parviflora C. J. Parenti 1971-3-7 D 15 Orange Collected in empty lot between West and Walnut Streets. About 1000 ft. from the Disneyland Hotel. 30 Comment
  POM2953  Malvella leprosa P. A. Munz 1918-5-4 2205 Orange Laguna Lakes, Laguna. Comment
  UC537168  Malvella leprosa Lawrence M. Booth 1932-6-9 1174 Orange 1/2 mi. from ocean Santa Ana R. Comment
  RSA441219  Marah macrocarpa E. S. Spalding 1923-1-1 s.n. Orange Laguna Beach. Comment
  UCR203984  Marah macrocarpa Fred M. Roberts 2008-3-12 6723 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
  UCR223414  Marah macrocarpa Dick Newell, Don Millar 2011-2-15 063 Orange South Coast, San Joaquin Hills, Laguna Wilderness Park, along Stagecoach Trail 131 Comment
  RSA441224  Marah macrocarpa E. Crow 1929-2-22 161 Orange Santa Ana Mts., Calif Comment
  UCD41240  Marah macrocarpa Richard D. Luedke 1976-4-21 9 Orange Southeast Orange County. 12 miles east of El Toro on road S 19, Trabuco Canyon. Foothills of Santa Ana Mountains. Comment
  RSA184100  Marrubium vulgare I. L. Wiggins 1965-11-6 20347 Orange Near well #14, Kramer Oil Estates, near end of county road to Rancho Santa Ana. Comment
  POM903  Marsilea vestita P. A. Munz 1918-5-5 2187 Orange edge of pond above Laguna Comment
  CAS-BOT-BC348161  Matricaria discoidea C. L. Hitchcock; C. V. Muhlick 1964-3-17 23065 Orange 8 miles e. of Yorba Linda, Santa Ana Canyon Comment
  CAS-BOT-BC60301  Matthiola incana E. K. Balls 1955-4-4 20423 Orange West end of Newport Beach. 3 Comment
  JEPS13969  Matthiola incana D. L. Crawford 1922-8-3 743 Orange Aliso Point; Laguna Beach Region, Aliso Point Comment
  POM311206  Matthiola incana Karen Hosterman 1956-4-7 501 Orange Laguna Beach City, cliff overlooking Crescent Bay. Santa Ana Mtn range, Pacific Ocean drainage. 2 Comment
  UCSB52896  Meconella denticulata Roberts, Fred; Allen, R. 1983-4-10 Orange Santa Ana Mts; Upper Hot Springs Canyon; 3.1km WSW Falcon Group Camp; 2.5 km S Los Pinos Peak 790 Comment
  IRVC2383  Medicago polymorpha C. Thompson 1965-4-10 s.n. Orange Newport Beach; Corona del Mar, Corona Highlands. Southern Coastal Comment
  SD168149  Medicago polymorpha J. B. Anderson 1966-4-16 581 Orange Corona Del Mar; Buck Gully-Little Corona Beach. Comment
  RSA399  Medicago polymorpha J. T. Howell 1928-2-7 823 Orange Near the ranch houses, Rancho Santa Ana 152 Comment
  RSA746474  Medicago truncatula R. E. Riefner Jr. 2008-5-13 08- 76 -b Orange Near City of Orange, W side of Hicks Haul Rd., Irvine Ranch Reserve, Management Area 11. Comment
  RSA725517  Melia azedarach Fred M. Roberts, Robert L. Allen 2007-9-28 6613 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
  RSA598969  Melica frutescens Scott D. White 1997-3-28 4840 Orange Santa Ana Mountains: above Modjeska Canyon, proposed water tank site. 427 Comment
  POM296605  Melica imperfecta Lyman Benson 1932-3-26 3201 Orange Dana Point 60 Comment
  RSA697761  Melica imperfecta Aileen Adams 1932-4-29 s.n. Orange Slope above dam. [Orange Co.?] Comment
  SD123844  Melica imperfecta E. W. Lathrop 1966-5-13 6298 Orange Santa Ana Mountains, 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland Nat'l Forest 395 Comment
  IRVC2403  Melilotus albus Janet Morgan 1965-3-22 s.n. Orange San Clemente; Elmore Ranch. Southern Coastal Comment
  IRVC24248  Melilotus albus Fred M. Roberts, G. A. Marsh 1985-10-25 2505 Orange Santa Ana River; adjacent to Costa Mesa, 1.3km SSW Adams St. bridge, Southern Coastal 2 Comment
  POM201913  Melilotus albus L. M. Booth 1932-7-4 1252 Orange Newport Lagoon. Comment
  IRVC22485  Melilotus indicus Fred M. Roberts 1985-4-24 1651 Orange Laguna Beach: Laguna Canyon along Laguna Canyon Rd., 0.8km N jct. El Toro Rd. Southern Coastal 78 Comment
  IRVC2410  Melilotus indicus Debbie Frees 1965-3-13 s.n. Orange Silverado Canyon. Santa Ana Moutnains Comment
  IRVC2411  Melilotus indicus Janet Morgan 1965-3-22 Orange San Clemente; Elmore Ranch. Southern Coastal Comment
  IRVC2430  Melilotus indicus L. Burns 1965-3-14 s.n. Orange Newport Beach; Bayside Dr. Southern Coastal Comment
  IRVC2431  Melilotus indicus C. Weir 1965-4-17 s.n. Orange Newport Beach; Balboa Island. Southern Coastal Comment
  RSA734339  Melilotus indicus A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34636 Orange Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 366 Comment
  RSA743458  Melilotus indicus Fred M. Roberts 2008-3-19 6786 Orange Dana Point: Dana Point Headlands, CNLM Preserve, 0.8km W Marine Institute, Dana Point Harbor. 60 Comment
  UCR103153  Melilotus indicus Scott D. White 1997-3-26 4808 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
  IRVC2428  Melilotus indicus Pat McClellan 1965-5-1 Orange Coast Highway. Southern Coastal Comment
  UCSB12537  Melilotus indicus Whittington, M. 1962-4-17 Orange Vacant lot south of Katella Avenue two blocks east of Tustin Avenue Comment
  RSA773549  Mentzelia dispersa Fred M. Roberts, Robert Allen, Pat Brennon 2008-6-9 7035 Orange Santa Ana Mts.: Modjeska Peak, north slope, 0.2 km NNE summit 1632 Comment
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Mar 23 2020
  RSA0014074  Mentzelia micrantha Fred M. Roberts 2008-5-28 7011 Orange Lomas de Santiago: Loma Ridge, south fork Rattlesnake Cyn., 2.0km above Rattlesnake Reservoir dam and 2.2km WNW Bee Peak. 230 Comment
  UCR25309  Mesembryanthemum crystallinum John C. Roos 1965-6-16 s.n. Orange Dana Point Comment
  POM201708  Mesembryanthemum crystallinum L. M. Booth 1932-6-29 s.n. Orange Newport Bay. Comment
  RSA113255  Mesembryanthemum crystallinum E. K. Balls 1955-4-4 20432 Orange Coastal Strand, mouth of Santa Ana River, W bank, Hwy 101. 3 Comment
  RSA278  Mesembryanthemum crystallinum J. T. Howell 1927-6-30 251 Orange Bryant Ranch near Long Beach. 15 Comment
  UC212958  Mesembryanthemum nodiflorum D. L. Crawford 1916-5-10 Orange Laguna Beach Comment
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Jul 7 2008
  UCR100444  Mesembryanthemum nodiflorum B. G. Pitzer 1996-4-30 2775 Orange South Coast, Upper Newport Bay, Calif. Dept. Fish & Game Ecological Reserve, off (W of) Jamboree Road 6 Comment
  UCR21020  Mesembryanthemum nodiflorum S. Beckstrom-Sternberg 1980-5-25 52580- 01 7 Orange Jamboree Rd entrance to Hwy 73 South. Comment
  RSA5962  Mesembryanthemum nodiflorum C. B. Wolf 1932-9-13 4034 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
  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
  RSA588800  Micropus californicus Fred M. Roberts 1990-5-7 4600 Orange Rancho Mission Viejo: Ridge S of Blind Canyon and E of Christianitos Canyon, TRW Lease Holding, 5.0 km NE Clemente Survey Marker 152 Comment
  RSA588793  Micropus californicus Fred M. Roberts 1990-4-18 4567 Orange Rancho Mission Viejo: Chiquita Ridge, just west of Canada Chiquita, 2.5km SSE Median Rancho Survey Marker. 91 Comment
  UCR119310  Micropus californicus var. californicus R. E. Riefner Jr. 2000-4-27 20- 387 Orange Santa Ana Mountains, North Ranch Policy Plan Area, along dirt road running south from Baker Canyon Road to Silverado Road 335 Comment
  RSA663211  Micropus californicus var. californicus R. E. Riefner 2000-4-27 20 -387 Orange NCCP North Ranch Policy Plan Area. Along dirt road running S from Baker Cyn. Road to Silverado Road. 335 Comment
  UCR238212  Microseris douglasii Mark A. Elvin 2003-3-30 2388 Orange South Coast, north side of UC Irvine Preserve, between core of UCI campus (E Peltason Dr.) and Hwy 73 69 Comment
  CAS-BOT-BC348844  Microseris douglasii subsp. douglasii LeRoy Abrams 1903-4-18 3262 Orange Trabuco arroyo near Capistrano Comment
  RSA608535  Microseris douglasii subsp. platycarpha D. E. Bramlet 1993-3-27 2297 Orange University of California, Irvine Campus, adjacent to the UCI Ecological Reserve. The site is 150 ft. SW of the end of Los Trancos Dr. & 250 ft. E of the reserve entrance. 61 Comment
  RSA685937  Microseris douglasii subsp. platycarpha Fred M. Roberts, David E. Bramlet 2003-3-27 5621 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, Chistianitos Cyn., 0.79km N Sycamore Gate, 0.23km W Chistianitos Rd. 122 Comment
  RSA749295  Microseris heterocarpa Fred M. Roberts, Linda Farley 2008-3-28 6817 Orange Santa Ana Mtns.: Upper Weir Cyn., east fork along ridge just west of SR241, 3.4 km E Robber's Peak, Irvine Land Conservancy. 437 Comment
  RSA599647  Microseris lindleyi Fred M. Roberts 1995-4-21 4928 Orange Irvine: San Joaquin Hills, Quail Hill area near end of San Canyon Road, 2.9 km ENE French Hill. 49 Comment
  UC217850  Mimulus P. A. Munz, R. D. Harwood 1920-4-24 3758 Orange Sierra Canyon Santa Ana Mts. 365 Comment
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Sep 17 2011
  UC943889  Mimulus H. E. McMinn, M. Van Rensselaer 1945-6-9 1910 CD Orange ca. 5 mi e Laguna Beach (on Laguna Canyon Highway) Comment
  UCR106282  Mimulus aurantiacus var. aurantiacus B. G. Pitzer, M. Georgiady 1997-4-5 3077 Orange San Joaquin Hills, Crystal Cove State Park, along 'No Dogs' Trail (from parking area, along western bottom edge of ridge between Muddy Canyon & Moro Canyon), to just below intersection with 'Poles' trail 152 Comment
  POM8481  Mimulus aurantiacus var. pubescens P. A. Munz, R. D. Harwood 1920-4-24 3758 Orange Sierra [Freemont] Canyon 366 Comment
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Sep 17 2011
  RSA298668  Mimulus aurantiacus var. pubescens D. C. Michener 1981-6-19 3975 Orange Starr Ranch Audubon Sanctuary. Coastal sage-scrub formation in headwaters of Crow Canyon. Comment
  UCSB48103  Mimulus aurantiacus var. pubescens Roberts, Fred; Fritzke, Sue 1982-4-3 Orange Santa Ana Mnts; Lower Hot Springs Canyon; Lazy W Road; 2.4km N by road of San Juan Guard Station; 1.4km NNW Juan Rancho Survey Mark 240 Comment
  RSA550597  Mimulus aurantiacus var. puniceus Fred M. Roberts 1989-4-26 4317 Orange Costa Mesa; Fairview Park, Just west of end of Canyon Drive, 0.1 km W Canyon School. 24 Comment
  UCR174193  Mimulus cardinalis A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33017 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
  UCSB48200  Mimulus cardinalis Roberts, Fred 1981-6-26 Orange Sant Ana Mts; Viejo Canyon; 0.1km N Calif. Rte. 74; 2.7km E San Juan Gurad Station 291 Comment
  RSA131399  Mimulus clevelandii E. K. Balls 1958-6-27 23280 Orange 4.1 miles from Silverado (gate), Silverado Canyon, Santa Ana Mountains 1037 Comment
  RSA542495  Mimulus clevelandii Fred M. Roberts, Karlin G. Marsh 1987-5-14 3444 Orange Santa Ana Moutains: Upper Trabuco Canyon, Trabuco Canyon Trail , 1.4 km NE Los Pinos Peak 1121 Comment
  RSA701812  Mimulus floribundus Fred M. Roberts, David Bramlet 2003-6-6 5902 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, west slopes of Cristianitos Canyon, 0.86 km SSW Gato Gate and 0.39 km W of Cristianitos Road. Comment
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Nov 9 2014
  RSA769081  Mimulus guttatus R. H. McArthur 1934-3-8 s.n. Orange Laguna Hills Comment
  RSA0045513  Mimulus guttatus Keith E. Hoffmaster 1935-4-14 928 Orange Trabuco creek, 1/4 mi. above CCC camp at Trabuco Oaks, Santa Ana Mts. PR 8. Comment
  UCR190986  Mimulus pilosus A. C. Sanders, Fred M. Roberts 2008-4-22 34992 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
  RSA423690  Minuartia californica M. B. Dunkle 1935-2-10 4335 Orange Laguna Creek; Coastal Southern California. 61 Comment
  IRVC25444  Minuartia douglasii var. douglasii Fred M. Roberts 1987-5-9 3432 Orange San Juan Trail above Chiquito Basin, 2.3km SSE Los Pinos Peak, Santa Ana Mountains 952 Comment
  CAS-BOT-BC434672  Mirabilis laevis var. crassifolia C. L. Hitchcock; C. V. Muhlick 1964-3-17 23061 Orange 8 miles e. of Yorba Linda, Santa Ana Canyon Comment
  JEPS61334  Mirabilis laevis var. crassifolia L. M. Booth 1932-5-12 1035 Orange Newport Bay Comment
  RSA465231  Mirabilis laevis var. crassifolia M. B. Dunkle 1933-3-5 3078 Orange San Juan Canyon 305 Comment
  RSA0028031  Mollugo verticillata Fred M. Roberts, Laura Cohen 2012-10-31 7717 Orange San Joaquin Hills: Laguna Lake 1 (Upper Laguna Lake), north end. Laguna Coast Wilderness Park, ca. 5.1 kilometers ENE Signal Hill. 113 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
  UC537290  Monanthochloe littoralis Lawrence M. Booth 1932-5-12 1046 Orange Newport Bay Comment
  IRVC25321  Monardella hypoleuca Karlin G. Marsh, G. A. Marsh 1989-6-25 s.n. Orange Central Santiago Canyon, south slope, along old mine trail just below Santiago Truck Trail, 2.7km SSW Laurel Springs. Santa Ana Mountains 748 Comment
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Aug 13 2012
  RSA0005460  Monardella hypoleuca Percy C. Everett 1935-7-11 7266 Orange Santa Ana Mountains: Main Divide Motorway, 4 miles N from Ortega Hwy in San Juan Canyon. 1098 Comment
  CAS-BOT-BC221718  Monardella hypoleuca subsp. intermedia Carl B. Wolf 1936-6-22 8003 Orange Santa Ana Mts., 3 mi. above F. S. Gate in Santiago Canyon, along truck trail to Modjeska Pk. 762 Comment
  UC718448  Monardella hypoleuca subsp. intermedia Carl B. Wolf 1936-6-22 8003 Orange 3 mi above F.S. gate Santiago Canyon (along truck trail to Modjeska Pk.); Santa Ana Mts 762 Comment
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Jan 7 2018
  RSA679223  Monardella lanceolata Fred M. Roberts 2003-6-25 5948 Orange Santiago peak, north slopes along ridge east of Main Divide truck trail, 0.6km NNW summit. 1605 Comment
  CAS-BOT-BC275294  Muhlenbergia microsperma John Thomas Howell 1927-6-5 2436 Orange Santa Ana Canon, N side 152 Comment
  RSA542548  Muhlenbergia microsperma Fred M. Roberts 1988-2-26 3809 Orange Dana Point above Dana Point marina, south of Santa Clara Ave., 0.6 km NE Marine Institute 27 Comment
  RSA758892  Muhlenbergia microsperma A. C. Sanders, Fred M. Roberts 2008-4-22 35009 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
  RSA773522  Muhlenbergia microsperma Fred M. Roberts 1999-5-14 5213 Orange Peninsular Ranges; Santa Ana Mts.: Lomas de Santiago, Loma Ridge; Upper Limestone Canyon on slopes above Bolero Spring, 2.4 km NNW Bolero Lookout 451 Comment
  POM156670  Muilla maritima Le Roy Abrams 1903-4-18 3263 Orange Capistrano Comment
  RSA0059070  Myoporum CNPS Accuracy Assessment Team 2014-7-9 9547 Orange Talbert Nature Preserve. Comment
  UCR48000  Myoporum laetum Jack Easton 1987-4-21 s.n. Orange Southern Coast, Kain property, San Clemente, mouth of Trafalgar Canyon, just behind the beach 30 Comment
  RSA0010807  Myoporum laetum James Henrickson 1970-9-5 5347 Orange 2 mi NW of Huntington Beach in southern open portion of Bolsa Chica Salt Marsh 0 Comment
  RSA0010809  Myoporum laetum Robert F. Thorne 1975-4-6 45588 Orange San Joaquin Marsh: north margin of marsh Comment
  RSA6660  Nassella cernua B. D. Stark 1933-5-2 4546 Orange Rancho Santa Ana. 457 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
  RSA548875  Nassella lepida Fred M. Roberts 1988-4-10 3900 Orange Lomas De Santiago: Loma Ridge, Upper Limestone Canyon, c.a. 3.2 kilometer NNW Bolero Lookout. 347 Comment
  RSA638967  Nassella lepida Valerie L. Soza, LeRoy Gross 1999-6-8 500 Orange Santa Ana Mountains: Santiago and Modjeska Canyons, above Tucker Wildlife Sanctuary, above the town of Modjeska 518 Comment
  RSA751328  Nassella lepida A. C. Sanders, Fred M. Roberts 2008-5-6 35264 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
  SEINET6854814  Nassella lepida Fred M. Reed 1929-7-10 s.n. Orange Laguna Beach. Comment
  RSA542547  Nassella pulchra Fred M. Roberts 1988-2-9 3782 Orange Lomas De Santiago: Loma Ridge, 1.5km N Bee Survey Mark., UTM 373 3700m N, 435 200m E 385 Comment
  RSA682762  Nassella pulchra Scott D. White, Amanda Duchardt 2003-3-27 8864 Orange Canyon bottom and west facing slopes above Canada Gobernadora. 91 Comment
  RSA747596  Nassella pulchra Fred M. Roberts 2000-5-19 5329 Orange Lomas de Santiago: Loma Ridge, ridge west of Bee Peak above Bee Cyn. landfill, 0.2 km W Bee Peak. 500 Comment
  RSA689535  Nasturtium officinale R. E. Riefner 2002-5-4 20 -97 Orange Upper Newport Bay, Jamboree Rd at Bayview Dr. 15 Comment
  RSA697464  Nasturtium officinale Snow 1929-3-18 38 Orange Santa Ana River. Comment
  RSA603289  Navarretia hamata subsp. leptantha R. E. Riefner 1997-7-18 97 -240 Orange Near Fullerton Nature Park. Comment
  UCR207192  Nemacaulis denudata var. denudata O. F. Clarke 2004-7-19 s.n. Orange South Coast, Least Tern Reserve, just north of the mouth of the Santa Ana River, Huntington Beach 4 Comment
  UCR190983  Nemacladus ramosissimus A. C. Sanders, Fred M. Roberts 2008-4-22 34999 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
  RSA616  Nemophila menziesii J. T. Howell 1928-3-18 889 Orange Rancho Santa Ana, Botanic Garden. 152 Comment
  POM8749  Nemophila menziesii var. integrifolia P. A. Munz, R. D. Harwood 1920-4-25 3726 Orange Santa Ana Mountains, Silverado Canyon. 549 Comment
  IRVC152  Nephrolepis cordifolia Ed Hazen 1965-4-1 HS 537 Orange Trabuco Canyon Santa Ana Mountains Comment
  RSA0060643  Nephrolepis cordifolia Richard E. Riefner 2014-2-24 14 -64 Orange City of Dana Point, W ca. 0.1 mi from Island Way, Dana Point Harbor Dr., cliff slope immediately S of Santa Clara Ave. and Amber Lantern St. 3 Comment
  UC2042004  Nephrolepis cordifolia R. E. Riefner Jr. 2010-5-14 10 -35 Orange City of Laguna Beach, N side of North Coast Highway near Jasmine St. Comment
  RSA648655  Nerium oleander R. E. Riefner 2000-8-23 20 -730 Orange NCCP North Ranch Policy Plan Area. Fremont Canyon: N. of Santiago Creek & immediately S. of major stream fork 305 Comment
  RSA733727  Nicotiana bigelovii Betty Niedergall 1932-5-3 s.n. Orange Hills of Orange County Park Comment
  RSA0069235  Nicotiana clevelandii Fred M. Roberts, Lee Ann Caranza 2009-4-7 7140 Orange Dana Point Headlands: Dana Point CNLM Preserve, 0.8 km WNW Dana Point Marine Institute at Dana Point Harbor. 60 Comment
  HSC21283  Nicotiana glauca D. W. Snell 1964-3-24 10 Orange 1 mi. E of Brea, N of Birch St. 120 Comment
  RSA80733  Nicotiana glauca F. W. Peirson 1923-3-18 5306 Orange Santa Ana River Canyon. 137 Comment
  UCR191236  Nicotiana quadrivalvis A. C. Sanders, Fred M. Roberts 2008-4-22 34986 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
  RSA5813  Nitrophila occidentalis C. B. Wolf 1932-6-28 3805 Orange Bryant Ranch: Edge of field on Bixby Ave., 300 ft. east of SW corner of NW1/4 of NE 1/4 of Sec. 33. 9 Comment
  RSA0000259  Nolina cismontana James C. Dice, T. Oberbauer 1986-5-3 650 Orange 0.2 km west of Trabuco Canyon. 365 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
  RSA594888  Nolina cismontana Fred M. Roberts 1992-6-21 4845 Orange Mission Viejo; Planning Area 10, ridge east o f English Creek and west of Vista del Lago Dr., 5.3 km ENE El Toro fire Station. 293 Comment
  RSA642703  Nolina cismontana R. E. Riefner 2000-3-19 20 -137 Orange NCCP North Ranch Policy Plan Area. Along dirt road running N and parallel to Black Star Cy. Road. 396 Comment
  SD142046  Nolina cismontana James C. Dice 1985-5-23 594 Orange Santa Ana Mts., upper Borrego Cyn., along Santiago Cyn. Rd., 1.8 km S of Modjeska Cyn. Rd. 440 Comment
  UCR114938  Nolina cismontana R. E. Riefner Jr. 2000-7-6 20- 616 Orange Peninsular Range, Santa Ana Mountains, NCCP North Ranch Policy Plan Area, NE property; upper (E fork) of Fremont Canyon along National Forest Boundary at powerlines 692 Comment
  UCR207516  Nolina cismontana O. F. Clarke 2006-5-6 s.n. Orange Peninsular Range; Santa Ana Mtns., Coal Canyon 305 Comment
  UCSB47625  Nuttallanthus texanus Roberts, Fred 1980-4-3 Orange Hills, 1.0km NE Dana Hills High School; Dana Point 75 Comment
  RSA649937  Oenothera bistorta R. Soper 1971-3-19 24 Orange Upper Newport Bay. Along bayside Drive 1.3 mi. from S. jct with Jamboree Rd. el. ca. 4' 1 Comment
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Sep 15 2011
  CAS-BOT-BC171489  Oenothera californica Carl B. Wolf 1931-3-25 1935 Orange Along the Santa Fe R.R., 1 mile west of Atwood 91 Comment
  RSA2061  Oenothera californica subsp. californica Carl B. Wolf 1931-3-25 1935 Orange along Santa Fe R. R, 1 mile west of Atwood. 91 Comment
  RSA752093  Oenothera contorta Norland 1929-4-2 45 Orange Cypress Comment
  POM225560  Oenothera elata subsp. hirsutissima P. A. Munz 1936-6-30 14176 Orange About 6 miles south of Garden Grove. Comment
  UCR239883  Oenothera laciniata O. F. Clarke 2004-4-5 s.n. Orange South Coast, Least Tern Reserve, just north of the mouth of the Santa Ana River, Huntington Beach 4 Comment
  RSA771511  Oenothera micrantha Keith E. Hoffmaster 1927-4-2 465 Orange Santa Ana Mountains [county not specified] Comment
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Jun 10 2012
  RSA785416  Oenothera pallida var. californica Keith E. Hoffmaster 1927-4-3 463 Orange Near Buena Park. Comment
  RSA785413  Oenothera spiralis Keith E. Hoffmaster 1927-4-5 464 Orange [City of] Newport. Comment
  CAS-BOT-BC229010  Oncosiphon piluliferum R. E. Riefner, Jr. 2011-5-20 11 -57 Orange Newport Beach, Coastal Peak Park, East Coastal Peak Rd. at Ridge Park Rd. 305 Comment
  CAS-BOT-BC56807  Opuntia John Thomas Howell 1927-6-22 2573 Orange Field redacted by CAS, contact the data manager for more information 152 Comment
  RSA649688  Opuntia R. E. Riefner 2000-8-23 20 -733 Orange NCCP North Ranch Policy Plan Area. Fremont Canyon: N. of Santiago Creek & immediately S. of major stream fork 305 Comment
  UCD97983  Opuntia X occidentalis Janet McIntosh 1966-4-9 17 Orange State Highway 74, 20 miles northeast of San Juan Capistrano. Comment
  POM317735  Opuntia littoralis David Walkington 1963-5-23 175 Orange West side of N Euclid Ave. north of Sunny Hills West Home, Fullerton. 76 Comment
  UCR196298  Opuntia littoralis A. C. Sanders, T. B. Salvato 2008-5-13 35376 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Canyon above (S of) mouth of Hangman Tree Canyon, just below Modjeska Canyon confluence 366 Comment
  RSA6668  Opuntia oricola B. D. Stark 1933-1-17 4518 Orange 5 miles north of Laguna Beach on road to Irvine. 152 Comment
  CAS-BOT-BC58075  Opuntia vaseyi John Thomas Howell 1927-6-22 2574 Orange Field redacted by CAS, contact the data manager for more information 152 Comment
  POM317769  Opuntia vaseyi David Walkington 1963-9-13 217 Orange Above intersection of Dana Cove Park rd. and Green Lantern Dr., continuous slope with Dana Cove Park Rd. Dana Point. 61 Comment
  RSA0059155  Orobanche fasciculata W. Pequegnat 1940-4-13 s.n. Orange Trabuco Peak, Santa Ana Mts. 1311 Comment
  UCR26601  Orobanche parishii Steve Boyd 1982-7-26 s.n. Orange Rancho Mission Viejo, Ashbury Canyon north of Arroyo Trabuco Comment
  POM156459  Orthocarpus densiflorus var. gracilis L. R. Abrams 1903-4-18 3266 Orange Near San Juan Capistrano Comment
  CLARK-A1528-4285  Orthocarpus purpurascens John C. Roos 1965-6-16 Orange Dana Point Comment
  POM202722  Orthocarpus purpurascens L. M. Booth 1932-5-12 1048 Orange Newport Beach Comment
  CAS-BOT-BC355778  Osmadenia tenella John Thomas Howell 1927-7-28 2867 Orange On n. side of Santa Ana Canon [Canyon] 182 Comment
  CAS-BOT-BC355782  Osmadenia tenella H. F. Copeland 1938-6-28 s.n. Orange Hills back of Laguna Beach Comment
  JEPS38558  Osmadenia tenella H. L. Mason 1926-4-25 Orange Laguna Comment
  RSA789219  Osmadenia tenella Naomi Fraga, Duncan S. Bell 2009-5-11 2723 Orange Chiquita Trail 762 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
  UCSB48385  Oxalis californica Roberts, Fred 1982-4-18 Orange San Juan Canyon, Hwy 74, 0.6km SW Lower San Juan Picnic Ground; 1.9km WNW Sitton Peak, Santa Ana Mtns. 420 Comment
  SEINET3347440 Image available Oxalis pes-caprae P. S. Rattle Spring 1938 Orange Huntington Beach Comment
  OBI8001  Oxalis pes-caprae Kurt R. Neisess 1975-12-18 s.n. Orange Disturbed area in Fullerton Hills Comment
  RSA64895  Oxytheca trilobata F. W. Peirson 1923-9-7 4041 Orange Santiago Peak 1524 Comment
  UCR227627  Oxytheca trilobata Robt. L. Allen 2003-6-22 12281 Orange Santa Ana Mountains, along North Main Divide Road, 6.3 road mi north of Falcon Group Campground, c. 2.43 air mi northwest of Los Pinos Saddle 1334 Comment
  RSA761791  Oxytheca trilobata Robt. Allen 2003-6-22 12279 Orange Along North Main Divide Road, 6.3 road miles north of Falcon Group Campground, circa 2.43 air miles northwest of Los pinos Saddle. 1334 Comment
  HSC88192  Paeonia brownii R. E. Nelson, T. Baumann, Kondratieff, T. Sargent 1988-1-12 5117 Orange San Juan Creek at the Lower San Juan Campground, Cleveland National Forest. 366 Comment
  IRVC26852  Paeonia californica D. E. Bramlet 2000-4-7 2945 Orange The site is 30m S of the SCE maintenance road and 1km E of Weir Canyon; 1.5km W of Blind Canyon. Southern Coastal 287 Comment
  RSA650648  Paeonia californica D. E. Bramlet 2000-4-7 2945 Orange This site is 30m south of the SCE maintenace road and 1km east of Weir Canyon. The locality is 1.5km west of Blind Canyon. 287 Comment
  RSA700031  Paeonia californica Minor Warne 1934-03 s.n. Orange Gypsum canyon Comment
  RSA698740  Paeonia californica Mary Oliver s.n. Orange Santa Ana canyon. Comment
  RSA773552  Panicum capillare Fred M. Roberts 2008-6-3 7032 Orange Lomas de Santiago: Loma Ridge, East Fork Rattlesnake Canyon, ca. 2.6 km NE Rattlesnake Reservoir spillway and 2.4 km ENE Bee Peak 225 Comment
  RSA724122  Panicum virgatum R. E. Riefner 2006-9-19 6 -439 Orange City of Anaheim, N side of Santa Ana River channel, Santa Ana Canyon, W (downstream) ca. 1.25 mi from Green River Golf Course. 118 Comment
  UC1971218  Parapholis incurva Louis C. Wheeler 1947-5-3 6475 Orange Newport Bay. Comment
  POM2138  Parietaria hespera var. hespera D. L. Crawford 1916-5-15 991 Orange Languna Canyon. Shade Comment
  POM9119  Parietaria hespera var. hespera Philip A. Munz, R. D. Harwood 1920-4-24 3786 Orange Santa Ana Mountains, Sierra [Freemont] Canyon. 366 Comment
  UCR261556  Parthenium hysterophorus Jan West 2015-4-22 s.n. Orange Santa Ana, SE corner of E 17th St. and Lincoln Ave., 0.5 km east of I-5 on 17th 49 Comment
  UCSB40900  Paspalum dilatatum Roos, John 1936-10-13 Orange Costa Mesa near Santa Ana Comment
  RSA603302  Paspalum distichum Scott D. White, Brian Leatherman 1997-6-12 5333 Orange East of San Juan Capistrano: San Juan Creek beteen Highway 74 bridge and Mission Vieja site, i.e. ca. 2 - 4 miles E of I-15 [Interstate 5] / Highway 74 junction. 46 Comment
  UCR192987  Paspalum distichum A. C. Sanders, Fred M. Roberts 2008-6-17 35499 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, West Loma Ridge Spur Road c. 0.8 mi SW of Irvine Lake and 0.9 mi. SE of Sheriff's Training Facility, just east of Hwy 241 280 Comment
  UC2061664  Paspalum pubiflorum R. E. Riefner Jr. 2007-9-30 07 -419 Orange City of Yorba Linda, Santa Ana Canyon, N bank of Santa Ana River, vicinity of La Palma Ave. and Via Loma De Yorba East. Comment
  RSA733139  Paspalum vaginatum R. E. Riefner 2007-10-17 7 -437 Orange City of Dana Point, Dana Point Harbor, Dana Point Harbor Dr. near Park Lantern Dr. 4 Comment
  UCD169410  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
  UCR204165  Paspalum vaginatum R. E. Riefner Jr. 2007-7-8 07- 304 Orange City of Laguna Niguel, Aliso Creek, Alicia Pkwy at Skate Park Way 46 Comment
Read comments
Jul 30 2010
  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
  RSA737239  Paspalum virgatum R. E. Riefner 2008-7-29 08 -256 Orange City of Dana Point, Salt Creek Beach, Near Ritz Carlton Hotel 0 Comment
  UCR192629  Pectocarya linearis A. C. Sanders, Fred M. Roberts 2008-3-25 34525 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  UCR237832  Pectocarya linearis Mark A. Elvin 2003-2-2 2262 Orange South Coast, San Joaquin Marsh, UCI campus SSE of intersection of Jamboree Blvd. and Campus Dr. 2 Comment
  IRVC16237  Pectocarya linearis subsp. ferocula Karlin G. Marsh 1978-3-24 Orange UCI Ecological Preserve, Irvine Comment
  UCSB56507  Pectocarya linearis subsp. ferocula Marsh, G. 1978-3-17 Orange U.C. Irvine Ecological Preserve: in swale, near hilltop of Hill #3 85 Comment
  RSA649  Pectocarya penicillata J. T. Howell 1928-2-26 861 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA1458  Pedicularis densiflora E. R. Johnson 1929-4-11 1259 Orange Sierra Peak Trail. Comment
  RSA787503  Pedicularis densiflora Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49711 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  JEPS117764  Pelargonium Mark A. Elvin 2005-5-14 4314 Orange Southern Coastal: UCI Arboretum. 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
  SD48447  Pellaea andromedifolia var. andromedifolia E. K. Balls, P. C. Everett 1957-11-25 22840 Orange Upper Trabuco Canyon, 2.2 miles northeast from entrance to Holy Jum Canyon 990 Comment
  CAS-BOT-BC71393  Pellaea mucronata Carl B. Wolf 1933-8-24 5396 Orange Santa Ana Mts., summit of Santiago Pk. 1731 Comment
  UCSB52421  Pellaea mucronata Roberts, Fred; Meyers, J. 1982-11-7 Orange Santa Ana Mtns.; Lion Canyon, Chiquito Basin Trail, 3.6 km. S Blue Jay Campground; 2.4 km. NNE lower San Juan Campground 800 Comment
  IRVC14100  Pellaea mucronata var. mucronata K. Marvosh 1966-5-1 Orange Harding Canyon, 1mi up canyon, 400ft up on slope; dry rocky slope in chaparral and coastal sage scrub. Santa Ana Mountains Comment
  UCR193469  Pennisetum clandestinum A. C. Sanders, T. B. Salvato 2008-5-13 35350 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
  RSA0015000  Pennisetum setaceum Fred M. Roberts, David E. Bramlet 2008-5-13 6957 Orange Upper Weir Cyn., central fork, 3.5 km NE Roberst Peak 369 Comment
  SD175783  Pennisetum setaceum D. G. Kelch 2006-12-9 06 564 Orange Irvine, University Dr. along tidal Creek just east of I-73. Comment
  UCR170142  Pennisetum setaceum Jeffrey Ross, R. Zaka, P. Ross 1998-5-2 33 Orange Irvine, San Joaquin Wildlife Reserve, San Diego Creek; highly disturbed wash, sandy with high seasonal variation in water level, c. 5 mi from Pacific Ocean 6 Comment
  RSA610216  Pennisetum setaceum Fred M. Roberts 1997-4-19 5013 Orange San Juan Canyon along San Juan Creek at CA. Rte. 74 bridge just east of San Juan Hot Springs, 0.8km SSE Juan Rancho Surbey Mark 240 Comment
  UCR227630  Penstemon grinnellii Robt. L. Allen 2003-6-22 12274 Orange Santa Ana Mountains, west-facing flank of Santiago Peak, along North Main Divide Road 1555 Comment
  UCR230831  Penstemon heterophyllus Dick Newell, Judy Booth 2011-6-19 179 Orange Peninsular Range; Santa Ana Mtns., Maple Springs Rd., Cleveland National Forest, above Santiago Canyon 1086 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
  RSA401836  Penstemon spectabilis F. R. Fosberg 1931-6-21 S- 5085 Orange Lower Santiago Canyon. Comment
  UC1063198  Penstemon spectabilis A. Lewis May 1934 436 Orange Los Pinos Peak Cleveland National Forest, Elsinore Quad. Comment
  RSA16996  Pentachaeta aurea Percy C. Everett 1935-4-22 7745 Orange 1/4 mile W of Horseshoe Bend, Santa Ana Canyon 122 Comment
  RSA741730  Pentachaeta aurea subsp. allenii R. E. Riefner 2008-6-25 08 -169 Orange Santa Ana Mountains, Irvine Ranch Reserve, Fremont Canyon Conservation Easement, east Fremont Canyon, Lakeview SCE Road. 480 Comment
  RSA687393  Pentagramma triangularis subsp. triangularis May N. Ackley 1925-05 83 Orange Silverado Canyon Comment
  IRVC19405  Petroselinum crispum R. L. Allen 1983-2-7 A616 Orange Whiteoak at Starshine St.; common weed in bluegrass lawn at private home. Huntington Beach Comment
  POM4186  Petunia parviflora L. R. Abrams 1901-6-13 1775 Orange Laguna Comment
  RSA626154  Petunia parviflora R. E. Riefner Jr. 1998-4-2 98 -245 Orange W of Talbot Park and NNE from Rte 1 and Prospect St. Comment
  OBI30179  Phacelia cicutaria var. hispida Nancy J. Mann 1976-5-23 s.n. Orange Charlton ranch, 1.2 mi N of Modjeska Cyn rd on Santiago Cyn rd, Santa Ana Mts Comment
  POM49687  Phacelia cicutaria var. hispida L. R. Abrams 1901-06 1820 Orange Santiago Peak trail. Comment
  RSA221010  Phacelia cicutaria var. hispida E. W. Lathrop 1966-4-18 6174 Orange 4 mi NE of Lake Irvine, Black Star Canyon, Cleveland National Forest, Trabuco District. Comment
  UCR191362  Phacelia cicutaria var. hispida A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34627 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
  RSA697797  Phacelia cicutaria var. hispida L. C. Hull 1934-4-1 s.n. Orange Panorama Heights Comment
  UCSB47622  Phacelia cicutaria var. hispida Roberts, Jr., Fred 1980-5-3 Orange Santa Ana Mtns., San Juan Canyon, Rte. 74, 0.2 km. S Lower San Juan Picnic Ground 393 Comment
  RSA741728  Phacelia cicutaria var. hubbyi R. E. Riefner Jr. 2007-6-14 7 -257 Orange Irvine Ranch Reserve, Fremont Canyon Conservation Easement, W Fremont Canyon, Windy Ridge area. 478 Comment
  RSA201438  Phacelia distans J. T. Howell 1928-1-15 3277 Orange Near the Ranch House. Rancho Santa Ana. 152 Comment
  RSA699578  Phacelia distans Dorothy Sammis s.n. Orange Silverado Canyon Comment
  SEINET7073422  Phacelia distans A. G. Vestal 1963-4-24 s.n. Orange La Paz Canyon, Rancho Mission Viejo. Coordinate datum: NAD27. Comment
  RSA0041601  Phacelia distans Albert J. Perkins 1913-4-22 s.n. Orange Trabuco Canyon. Comment
  RSA698722  Phacelia distans R. H. McArthur 1924-3-25 s.n. Orange Barranca Bridge - Laguna Road Comment
  RSA717571  Phacelia minor Marcus E. Jones 1926-3-10 s.n. Orange Near Santa Ana Canyon. Comment
  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
  UCR193841  Phacelia parryi A. C. Sanders, Fred M. Roberts 2008-7-16 35861 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hangmans Tree Canyon 379 Comment
  RSA759251  Phacelia parryi Robt. Allen, Lori Whalen 2008-7-5 s.n. Orange Dry foothills along a SW-facing ridge, slong Santiago Truck Trail, 0.5 air miles E of USPF Forest Gate at Modjeska Grade Road. Comment
  SD72766  Phacelia ramosissima F. R. Fosberg 1931-6-21 S 5135 Orange Silverado Canyon, Santa Ana Mountains. Comment
  JEPS1031  Phacelia ramosissima var. austrolitoralis L. M. Booth 1932-5-19 1060 Orange Newport Bay Comment
  UCR241066  Phacelia tanacetifolia Dick Newell, Judy Booth 2013-3-13 318 Orange South Coast, Newport Beach, Back Bay Drive 0.05 mi. north of Shellmaker Rd. 3 Comment
  SEINET3119073 Image available Phacelia tanacetifolia P. A. Munz 1934-3-26 13133 Orange Newport Beach 12 Comment
  UCR170304  Phalaris aquatica Karlin G. Marsh 1982-8-13 s.n. Orange Santa Ana Mountains, south of Trabuco Canyon, Hendricks parcel 427 Comment
  RSA562734  Phalaris aquatica Steve Boyd, Timothy S. Ross 1992-5-19 7450 Orange Southern Santa Ana Mountains San Mateo Canyon Wilderness Area. Western edge of the wilderness along Lucas Canyon Trail crossing. 320 Comment
  RSA696380  Phalaris canariensis Keith E. Hoffmaster 1927-4-26 s.n. Orange Santa Ana. Comment
  SEINET10946467  Philodendron Thomas B. Croat 2003-4-5 Croat 87593 Orange Cultivated Plants from Rick M. Cirino, Cosa Mesa, California. Comment
  CAS-BOT-BC222604  Pholistoma auritum var. auritum Marcus E. Jones 1926-3-13 s.n. Orange Santa Ana Canon [Canyon] Comment
  UCSB41810  Phoradendron leucarpum subsp. tomentosum Hufstader, R. 1971-3-24 Orange Trabuce Canyon approx. 7 miles from Santiago Cyn. Rd, 426 Comment
  UC1714568  Phyla lanceolata D. L. Crawford 1916-7-26 Orange Laguna Canyon; Laguna Beach Region, Laguna Canyon Comment
  RSA759147  Phyla nodiflora Robert Allen 2007-4-28 s.n. Orange foothills, along Santiago Creek, N side of Irvine Regional Park 174 Comment
  CAS-BOT-BC452024  Phyllospadix torreyi L. R. Abrams 1917-6-25 6579 Orange Balboa Comment
  RSA384023  Phyllospadix torreyi Anstruther Davidson 1910-6-28 2493 Orange Balboa Beach. Comment
  UCR281509  Phytolacca icosandra Mitch Provance, Jeremiah George 2017-3-20 317- 101 Orange West Coyote Hills, Fullerton, vicinity of Utility Access Road W of Gilbert Street and N of Rosecrans Ave., on land previously occupied by oil fields. 131 Comment
  UCR195021  Picris echioides A. C. Sanders, Fred M. Roberts 2008-8-7 35993 Orange Peninsular Range; Santa Ana Mtns., lower Weir Canyon, at narrow gorge c. 0.6 mi. above mouth of cyn at Irvine Ranch gate 192 Comment
  RSA12825  Pinus attenuata C. B. Wolf 1934-12-21 6259 Orange So. slope of main ridge, saddle n.w. of Sugarloaf Pk. (Pleasants Pk.) 1 3/10 mi. so. of summit of Skyline Drive, Santa Ana Mts. 1159 Comment
  RSA562814  Pinus canariensis Steve Boyd, Tim Ross 1992-5-20 7467 B Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of the wilderness in Lucas Canyon along canyon floor from crossing Lucas Canyon Trail., Upstream 1/4 mile to spur trail leading to old mining habitations in side canyon. 305 Comment
Read comments
Feb 4 2016
  OBI7737  Pinus coulteri Carl B. Wolf, P. C. Everett 1939-1-10 10008 Orange Santa Ana Botanic Gardens cultivated. Old nursery outside seed bed Comment
  UCR144743  Pinus coulteri A. S. Boughey 1965-3-16 58 Orange Santa Ana Mtns., Silverado Canyon Comment
  SD255023  Pinus coulteri R. F. Thorne, E. W. Lathrop 1977-5-18 79731 Orange Santa Ana Mountains: at head of Trabuco Canyon Trail. Comment
  CDA1425  Pinus halepensis D. G. Kelch 2006-12-9 06 .553-B Orange Irvine. University Dr along tidal creek just E of I-73. Comment
  CAS-BOT-BC136555  Piperia cooperi Alice Eastwood; John Thomas Howell 1937-4-24 3924 Orange Field redacted by CAS, contact the data manager for more information Comment
  UCR193465  Piptatherum miliaceum A. C. Sanders, T. B. Salvato 2008-5-13 35352 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
  RSA184119  Piptatherum miliaceum I. L. Wiggins 1965-10-24 20291 Orange At corner of Yorba Linda and State College Blvds., Fullerton Comment
  IRVC20784  Plagiobothrys collinus var. californicus Fred M. Roberts, S. L. Fritzke 1982-4-2 465 Orange hills, 3.5km ESE Aliso Peak; 3.2km ESE Alicia Fire Station, N of Del Avion, Laguna Niguel 100 Comment
  RSA695817  Plagiobothrys collinus var. californicus L. C. Hull 1934-4-8 s.n. Orange Laguna Hills. Comment
  SDSU5387  Plagiobothrys collinus var. californicus R. M. Beauchamp 1968-2-17 771 Orange In field on west side of Trabuco Rd, 2 miles north of El Toro Rd. intersection. Comment
  UCSB14546  Plagiobothrys collinus var. californicus Breedlove, Dennis 1962-3-9 Orange 4.4 miles east of San Juan Capistrano on State 74 112 Comment
  RSA695818  Plagiobothrys collinus var. californicus R. H. McArthur 1934-3-10 s.n. Orange Tomato Springs Irvine Ranch Comment
  RSA696205  Plagiobothrys collinus var. californicus Minor Warne 1934-3-10 s.n. Orange Wash near El Toro Comment
  RSA542655  Plagiobothrys fulvus var. campestris Fred M. Roberts 1988-3-15 3864 Orange Rancho Mission Viejo: Upper Gabino Canyon, 4.1 km SE Point Rancho Survey Marker. 191 Comment
  RSA683082  Plagiobothrys nothofulvus Scott D. White, Amanda Duchardt 2003-5-1 9157 Orange Santa Ana Mtn Foothills; slopes above the west side of Canada Gobernadora and adjacent small canyon to the west. 76 Comment
  RSA0045607  Plagiobothrys nothofulvus Keith E. Hoffmaster 1935-2-9 840 Orange Santa Ana Mts., El Toro. Comment
  RSA0045609  Plagiobothrys nothofulvus Keith E. Hoffmaster 1935-2-9 840 Orange Santa Ana Mts., near El Toro. Comment
  RSA580936  Planodes virginica D. Bramlet 1995-4-29 2405 Orange Fairview Park, City of Costa Mesa, the site is located some 366m N of the intersection of Wilson and Canyon Dr. and 152m W of the canyon School, on a mesa overlooking the Santa Ana River. 43 Comment
  RSA678450  Plantago coronopus Valerie L. Soza, Kevin B. Clark, LeRoy Gross, Will Miller, Fred Roberts, Gary Wallace 2001-4-4 1121 -b Orange Seal Beach U. S. Naval Weapons Station, southwestern edge of Seal Beach National Wildlife Refuge. 3 Comment
  SD236354  Plantago erecta R. E. Riefner 2006-4-12 06 118 Orange Irvine, north foot of San Joaquin Hills, vicinity of Quail hill, SSW of 405 freeway and Shady Canyon Road. 46 Comment
  SBBG128583  Plantago erecta R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49653 Orange Coal Cyn (NW of Sierra Peak) Comment
  RSA730990  Plantago lanceolata Fred M. Roberts 2006-11-15 6464 Orange Santa Ana Cyn., 1.0 km ENE Imperial Hwy bridge, between La Palma Ave. and Santa Ana River near Big Springs St. 89 Comment
  RSA0054909  Plantago lanceolata Lena Danner 1932-5-9 s.n. Orange Along Villa Park Road, Villa Park. Comment
  UCR137450  Plantago major Scott D. White, Brian Leatherman 1997-6-12 5334 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
  UCR235457  Plantago subnuda A. C. Sanders 2011-8-20 39889 Orange South Coast, city of Placentia, Tri-City Park on North Kraemer Blvd. at Golden Ave. 104 Comment
  RSA652981  Platanus racemosa Darren Day, Hal Willis 1984-5-5 16 Orange This plant was found growing on the east side of Laguna Canyon Rd. as you are traveling towards the city of Laguna Beach. This location is approximately 3.4 miles out of town. Comment
  RSA698371  Platanus racemosa Minor Warne 1934-03 s.n. Orange Gypsum canyon Comment
  RSA750924  Platanus racemosa A. C. Sanders, Fred M. Roberts 2008-7-3 35700 Orange Weir Canyon, along Windy Ridge Rd. at wash crossing, 0.95 mi. SE of Walnut Canyon Reservoir 242 Comment
  SD234464  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 (Black Star Canyon 7.5' Q) 242 Comment
  UCR241072  Platanus racemosa Dick Newell, Judy Booth, Robt. L. Allen 2013-4-6 324 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, on Maple Springs Rd./Silverado Cyn. Rd., 1.5 miles above Maple Springs gate 671 Comment
  RSA747622  Platystemon californicus Fred M. Roberts 2008-4-16 6910 Orange Dana Point: Dana Point Headlands, CNLM Preserve, 0.8 km W Marine Institute, Dana Point Harbor. 45 Comment
  UCSB12591  Platystemon californicus Breedlove, Dennis 1962-3-9 Orange 4.4 miles east of San Juan Capistrano; on State 74 112 Comment
  CAS-BOT-BC226913  Plecostachys serpyllifolia R. E. Riefner, Jr. 2011-6-25 11 -73 Orange City of Laguna Beach, Moss Point, vicinity of Ocean Way at Ruby St. 6 Comment
  OBI81429  Plecostachys serpyllifolia Unknown 2007-4-28 07 -190 Orange City of Newport Beach, Dover Beach, vicinity of Morning Star Ln. and Polaris Dr. 7 Comment
  SD239618  Plecostachys serpyllifolia R. E. Riefner Jr. 2011-7-7 11 88 Orange City of Dana Point, S of Mussel Cove, N of Salt Creek Beach Park. 7 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
  UCR238457  Plecostachys serpyllifolia R. E. Riefner Jr. 2009-7-18 09- 151 Orange South Coast, city of Dana Point, beach near Salt Creek, vicinity of Ritz Carlton Resort 2.5 Comment
  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
  RSA751480  Plecostachys serpyllifolia R. E. Riefner Jr. 2008-10-22 08 -308 Orange City of Laguna Beach, ocean bluff vicinity of West St. and Pacific Coast Highway. 4 Comment
  RSA765878  Plecostachys serpyllifolia R. E. Riefner Jr. 2006-7-26 06 -319 Orange City of Irvine, N side of Irvine Blvd. at SR-133 on-ramp. 64 Comment
  UCR256912  Plectritis ciliosa subsp. insignis Naomi Fraga, Duncan S. Bell 2009-5-11 2710 Orange Santa Ana Mountains, Cleveland National Forest, San Juan Loop Trail just west of Sugarloaf Spur Trail 912 Comment
  POM201842  Pluchea odorata L. M. Booth 1932-7-19 1272 Orange Bolsas Marsh. Comment
  RSA639847  Pluchea odorata Sandra Leatherman 1998-9-3 45 Orange Dana Point: Monarch Beaach, NE of the intersection of State Hwy 1 and Crown Valley Parkway and W of Salt Creek. 30 Comment
  UCR146539  Pluchea odorata Scott D. White 2004-7-7 10605 Orange South Coast, Laguna Niguel, along Pacific Island Drive 122 Comment
  UCR208347  Pluchea odorata O. F. Clarke 2004-7-19 s.n. Orange South Coast, Newport Back Bay, along Back Bay Dr. 6 Comment
  UCR67014  Pluchea purpurascens A. C. Sanders 1990-10-6 10185 Orange South Coast, Newport Back Bay, SW side at North Star County Beach, SW end of the bay, c. 2 km inland from Hwy 1/ Pacific Coast Hwy 3 Comment
  RSA685929  Poa annua Fred M. Roberts 2003-3-27 5628 Orange Rancho Mission Viejo:Donna O'Neill Land Conservancy, Chistianitos Canyon, along North Ride Trail, 1.37 km N Sycamore Gate, 0.36 km W Chistianitos Rd. 114 Comment
  UCR193623  Poa annua A. C. Sanders, T. B. Salvato 2008-5-13 35357 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Canyon above (S of) mouth of Hangman Tree Canyon, just below Modjeska Canyon confluence 366 Comment
  RSA697756  Poa annua Wilma Griset 1931-2-18 s.n. Orange Santa Ana. Vacant lot. Comment
  RSA751158  Poa secunda D. E. Bramlet 2008-4-1 4143 Orange Ridegeline in Upper Hicks Canyon, 136m S of the Haul Rd. 345 Comment
  RSA798603  Poa secunda R. F. Thorne, E. W. Lathrop 1977-5-18 49746 Orange Santa Ana Mountains: summit of Santiago Peak 1733 Comment
  JEPS111463  Poa secunda subsp. secunda J. B. Anderson 1966-5-3 636 Orange Santa Ana Mountains: Silverado Cny., Modjeska Peak road at 4500 ft. elev., along road cuts Comment
  RSA629045  Poa secunda subsp. secunda Valerie L. Soza, LeRoy Gross 1999-6-10 527 Orange Santa Ana Mountains: Southwestern extension of Modjeska Peak, off dirt road to summit, off Main Divide Road. 1554 Comment
  SEINET3086485 Image available Polycarpon tetraphyllum J. Harry Lehr 1975-5-10 1556 Orange Santa Ana Street W. of State College Blvd. Anaheim. Comment
  CLARK-A1528-919  Polygonum aviculare Patricia A. Andrews 1975-6-26 5916 Orange Capistrano Bay Beach 9 Comment
  UCR170138  Polygonum aviculare Jeffrey Ross, R. Zaka 1998-5-2 40 Orange South Coast, North side of San Joaquin Hills; William R. Mason Regional Park, near intersection of Yale Avenue and University Drive 27 Comment
  UCR99858  Polygonum aviculare Scott D. White 1993-3-5 1126 Orange Tustin. Marine Air Corps Air Station: SE of Red Hill Ave and NE of Barranca 15 Comment
  JEPS51305  Polygonum aviculare subsp. aviculare Lawrence M. Booth 1932-7-4 1254 Orange Newport Bay Comment
  CAS-BOT-BC414038  Polygonum aviculare subsp. aviculare Carl B. Wolf 1932-6-20 3755 Orange Rancho Santa Ana, Santa Ana Canyon situated around administration building 198 Comment
  RSA542466  Polygonum aviculare subsp. aviculare Fred M. Roberts 1987-3-31 3299 Orange Lomas de Santiago: Lomas Ridge, upper Serrano Canyon, east fork, reservoir, 2.7km SE Bolero Lookout. 350 Comment
  UCR210362  Polygonum hydropiperoides T. B. Salvato, Billy Deane 2006-10-16 1927 Orange South Coast, Irvine, San Diego Creek flood control channel, between Michelson Drive and the 405 FWY 12 Comment
  RSA731907  Polygonum lapathifolium Fred M. Roberts, Sandy Leatherman 2007-11-27 6672 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
  RSA599648  Polygonum lapathifolium Fred M. Roberts 1995-4-21 4929 Orange Irvine: San Joaquin Hills, Quail Hill area near end of San Canyon Road, 2.9 km ENE French Hill. 49 Comment
  RSA264148  Polypodium californicum C. W. Tilforth 1977-3-6 1255 Orange Small canyon west of Gypsum Canyon, south side of Santa Ana River, Santa Ana Canyon 152 Comment
  RSA753427  Polypodium californicum D. E. Bramlet 2008-4-1 4140 Orange Ridegeline in Upper Hicks Canyon, 136m S of the Haul Rd. 345 Comment
  UCSB62525  Polypodium californicum Kiefer, Lawrence 1963-11-17 Orange Santa Ana Mtns., Trabuco Canyon, vicinity of the upper canyon camps. 762 Comment
  SEINET218267 Image available Polypodium californicum Robinson, Crocker 1916-3-28 Orange Santa Ana Mts. Comment
  UC729938  Polypogon australis Carl B. Wolf 1932-6-13 3723 Orange Fullerton; Malvern and Nicholas Avenues 53 Comment
  IRVC23141  Polypogon interruptus Fred M. Roberts 1985-7-10 2006 Orange Capistrano Beach: San Juan Creek, 0.5km from the ocean, 0.2km N of Pacific Coast Highway. southern coastal 2 Comment
  IRVC8402  Polypogon monspeliensis J. B. Anderson 1966-4-17 593 Orange Newport Beach: along roadside ditch in field NE of Newport Harbor High School. southern coastal Comment
  RSA710595  Polypogon monspeliensis Mark Elvin 2004-5-2 3416 Orange Southern Coastal, Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7 km (air) NNW of UC Irvine Campus center. 3 Comment
  RSA91997  Polypogon monspeliensis F. W. Peirson 1924-5-31 4649 Orange Laguna Canyon near Laguna Beach. 107 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
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Jan 25 2021
  RSA725534  Populus Fred M. Roberts 2007-9-11 6570 Orange Aliso Viejo: tributary to Aliso Creek on west side of Moulton Pkwy., 0.2 km N Aliso Viejo Pkwy., adj. to Kinder Care Learning Center. 83 Comment
  RSA752893  Populus balsamifera subsp. trichocarpa A. C. Sanders, Fred M. Roberts 2008-8-7 35974 Orange lower Weir Canyon, at narrow gorge c. 0.6 mi. above mouth of cyn at Irvine Ranch gate. 185 Comment
  POM360778  Populus fremontii Marcus E. Jones 1930-3-3 26533 Orange Santa Ana Mountains. Comment
  RSA731918  Populus fremontii subsp. fremontii Fred M. Roberts, Sandra Leatherman 2007-11-27 6661 Orange Anaheim: Santa Ana River, Santa Ana Canyon, just west of Horseshoe Bend on S side of E La Palma Ave., about 0.3km E Weir Cyn. Rd. bridge. 100 Comment
  RSA581439  Populus trichocarpa Fred M. Roberts Jr., Gordon Marsh 1989-5-12 4358 Orange Santiago Canyon, Flemming Regional Park, just E of Modjeska at end of paved road, ca. 3.0 km WSW Laurel Springs. 436 Comment
  SD236405  Populus trichocarpa R. E. Jr. Riefner 2006-4-8 06 111 Orange South Coast: San Juan Capistrano (city), San Juan Creek at La Novia Ave. 21 Comment
  RSA722930  Populus trichocarpa R. E. Riefner Jr. 2007-6-12 7 -253 Orange City of San Juan Capistrano. Vicinity of Calle Arroyo/ Paseo Esteban at San Juan Creek. 35 Comment
  POM266317  Porophyllum gracile J. C. Roos 1937-5-10 2337 Orange East of San Juan Capistrano. Comment
  UCR26999  Porophyllum gracile E. W. Lathrop 1966-4-18 6188 Orange Santa Ana Mtns., 4 mi NE of Lake Irvine, Black Star Canyon, Cleveland National Forest, Trabuco District Comment
  RSA671152  Porophyllum ruderale Ralph Guerrero 2000-10-24 10 -2000 Orange Along roadside of vegetable crop field, Seal Beach Naval Weapons Station, Seal Beach. Comment
  RSA184102  Portulaca oleracea I. L. Wiggins 1965-11-7 20360 Orange Vacant lot between State College Blvd. and Troy High School Campus, Fullerton. Comment
  SEINET3156932  Potentilla glandulosa var. nevadensis H. M. Hall 1906-7-15 7516 Orange S Fork Meadows, Santa Ana Canon, Upper Trabsition Zone Comment
  RSA443844  Prunus ilicifolia Gordon Marsh, Karlin G. Marsh 1977-5-2 s.n. Orange Pine Canyon, between Blue Light Mine and second mine, near swithback. Comment
  RSA699853  Prunus ilicifolia J. Vlahos 1934-4-22 s.n. Orange Harding Canyon Comment
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Jun 10 2012
  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
  SEINET11849335  Pseudognaphalium biolettii J. F. Bright, Wyman, C. 1933-1 8175 Orange near Dee Toro 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
  UCR281519  Pseudognaphalium californicum Mitch Provance 2017-6-9 617- 94 Orange Coyote Hills, North Fullerton, East side of Gilbert St., 0.5 miles ENE of intersection with Castlewood Dr. 124 Comment
  UCR119300  Pseudognaphalium canescens subsp. canescens R. E. Riefner Jr. 2000-8-8 20- 724 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
  RSA722094  Pseudognaphalium leucocephalum R. E. Riefner 2007-2-13 07 -55 Orange City of San Juan Capistrano, vicinity of La Novia Ave. and San Juan Creek. 31 Comment
  UCR193493  Pseudognaphalium luteoalbum A. C. Sanders, T. B. Salvato 2008-5-13 35358 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Canyon above (S of) mouth of Hangman Tree Canyon, just below Modjeska Canyon confluence 366 Comment
  UC537030  Pseudognaphalium stramineum Lawrence M. Booth 1932-7-19 1275 Orange Bolsas Marsh Comment
  IRVC1817  Pseudosasa japonica V. Riley 1967-2-21 Orange Balboa Island. southern coastal Comment
  RSA698725  Psoralea macrostachya W. Blanchard 1932-5-25 s.n. Orange Irvine Park Comment
  UCR156569  Psoralea macrostachya Gordon Marsh, Karlin G. Marsh 1976-7-8 15014 Orange Peninsular Range; Santa Ana Mtns., Lower San Juan Picnic Grounds, near Calif. Route 74 396 Comment
  POM12169  Pteridium aquilinum var. pubescens P. A. Munz 1922-4-28 5041 Orange Leach Canyon, Santa Ana Mountains 670 Comment
  RSA542463  Pterostegia drymarioides Fred M. Roberts 1987-3-27 3279 Orange Canada De Los Alisos: above Canada Rd., 4.5 km NNE El Toro Fire Station. 226 Comment
  RSA38191  Pulicaria hispanica P. A. Munz 1946-10-2 11554 Orange Santa Ana River Canyon, Rancho Santa Ana 122 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
  CDA7616  Pulicaria paludosa R. G. Ahlefeld 1959-7-15 Orange Santa Ana River Canyon, east of Fullerton. 0 Comment
  IRVC29828  Pulicaria paludosa Tom McCrainie, Mark A. Elvin 2006-9-23 2 Orange San Joaquin Marsh Freshwater Marsh, UC Natural Reserve; SW edge, along San Diego Creek, N of University Drive, E Hwy 73. Southern Coastal 2 Comment
  UCR192974  Pulicaria paludosa A. C. Sanders, Fred M. Roberts 2008-6-17 35463 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge on Hicks Canyon Haul Road, c. midway between Foothill Transportation Corridor and Santiago Cyn. Rd. 335 Comment
  UCR140885  Pyracantha koidzumii Robert DeRuff 1985-6-22 267 Orange Southern Coast, Newport Beach, Newport Back Bay, along the path between Northstar Beach and the end of Mariners Drive 2 Comment
  IRVC1323  Quercus agrifolia Gail Howard 1965-5-2 s.n. Orange Newport Beach: Back Bay Hills. Southern Coastal Comment
  RSA476865  Quercus agrifolia Thekla Mohr 1939-4-7 288 Orange Corona Skyline Road Comment
  RSA735196  Quercus agrifolia Keith E. Hoffmaster 1927-4-8 408 Orange Santa Ana Mountains. Comment
  SEINET12031056  Quercus agrifolia S. A. Thompson, Rawlins, J. E. 1988-1 5258 Orange Cleveland National Forest, 3.8 mi E of San Juan Hot Springs on CA 74 370 Comment
  RSA12734  Quercus berberidifolia E. R. Johnson 1933-11 5557 Orange Rancho Santa Ana. Comment
  RSA588844  Quercus berberidifolia Fred M. Roberts 1989-11-7 4453 Orange Rancho Mission Viejo: TRW Lease Holding, ridge south of the confluence of Gabino and Blind Canyons, 5.0 km NE Clement Survey Market. 155 Comment
  RSA590959  Quercus berberidifolia Fred M. Roberts, Karlin G. Marsh 1991-4-10 4765 Orange Laguna Beach: South Laguna, Temple Hill, ridge between upper Hobo Canyon and Aliso Gorge, 1.7 km NW Niguel Hill summit. 213 Comment
  RSA7679  Quercus berberidifolia Carl B. Wolf 1933-11-8 5537 Orange Trabuco Canyon along the Trabuco Truck trail Canyon. 915 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
  UCSB58643  Quercus berberidifolia Muller, Cornelius 1953-5-2 Orange Upper end of Swain Canyon, near ridge top, Santa Catalina Island Comment
  RSA12732  Quercus chrysolepis Carl B. Wolf, E. R. Johnson 1933-11-3 5528 Orange Main Divide Motorway on slopes of Modjeska Peak 1372 Comment
  RSA763061  Quercus chrysolepis E. W. Lathrop 1968-5-22 6931 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon. 396 Comment
  CAS-BOT-BC86387  Quercus dumosa John Thomas Howell 1927-6-16 2542 Orange ridge N side of Santa Ana canyon 152 Comment
  SEINET12031055  Quercus dumosa S. A. Thompson, Rawlins, J. E. 1988-1 5259 Orange Cleveland National Forest, 3.8 mi E of San Juan Hot Springs on CA 74 370 Comment
  IRVC17313  Quercus engelmannii Gordon A. Marsh, Karlin G. Marsh 1979-12-12 s.n. Orange S side of Ortega Highway (74); 4 miles E of San Diego Freeway [I405]. Santa Ana Mountains Comment
  IRVC19904  Quercus lobata Gordon A. Marsh, Karlin G. Marsh 1983-7-15 s.n. Orange San Joaquin Hills, Upper Shady Canyon. Southern Coastal Comment
  RSA0038510  Quercus suber R. E. Riefner Jr. 2012-11-18 12 -555 Orange city of Irvine, San Joaquin Wildlife Sanctuary, South Loop Trail, north of San Diego Creek, west of Campus Drive 8 Comment
  UC1135890  Quercus wislizeni A. Lewis Mar 1934 363 Orange Head of Silverado Canyon Cleveland National Forest, Corona Quad. 1112 Comment
  UCR261711  Rafinesquia californica Dick Newell, Don Millar 2015-3-24 393 Orange South Coast, San Joaquin Hills, on Willow Canyon Trail 0.2 mi. west of Laguna Coast Wilderness Park entrance off Laguna Canyon Rd. 88 Comment
  IRVC29093  Ranunculus californicus var. californicus Fred M. Roberts 1989-3-17 4208 Orange Aliso Canyon, 3.3km SSE Moulton Pk. Aliso-Wood Canyon Regional Park 30 Comment
  RSA734148  Ranunculus muricatus Pomeroy 1929-3-8 95 Orange Santa Ana. Comment
  IRVC1149  Raphanus sativus C. Duncan 1965-4-4 Orange Newport Beach Comment
  SD152899  Raphanus sativus Steve Boyd, Tim Ross 1992-5-19 7446 Orange Southern Santa Ana Mountains; western edge of the wilderness in Alixo Canyon at the confluence with Lucas Canyon, upstream to the Lucas Canyon Trail crossing. 274 Comment
  UC1543096  Raphanus sativus Donald G. Nelson 1936-5-29 432 Orange e of Buena Park (on n side of West Commonwealth Avenue, on edge of Fullerton Municipal airport); Fullerton Municipal airport, West Commonwealth Avenue Comment
  OBI30177  Raphanus sativus T. W. Niilus 1970-2-14 N 16 Orange 1 mi E of Yorba Linda on Imperial hwy on road cut 91 Comment
  RSA651170  Raphanus sativus Norman Willis 1948-2-8 s.n. Orange 2 miles E of Orange 60 Comment
  CDA1075  Rhamnus alaternus D. G. Kelch 2006-12-9 6 .546 Orange Along Newport Back Bay Dr. in side canyon. Comment
  LA207818  Rhamnus ilicifolia P. C. Everett; 1935-6-17 7138 Orange Santa Ana Mountains, Coldwater Canyon, 0.5 mi. above Glen Ivy Resort 457 Comment
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Jan 23 2015
  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
  POM9767  Rhamnus ilicifolia P. A. Munz 1921-2-26 4681 Orange Brea Canyon. 305 Comment
  POM243761  Rhamnus tomentella subsp. cuspidata Percy C. Everett 1935-6-18 7217 Orange Santa Ana Mts: Summit of Santiago Peak. 1732 Comment
  UC1121807  Rhamnus tomentella subsp. tomentella A. Lewis May 1934 417 Orange Trabuco Canyon Cleveland National Forest, Elsinore Quad. 1371 Comment
  UCR119305  Rhamnus tomentella subsp. tomentella R. E. Riefner Jr. 2000-8-8 20- 718 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
  LA62809  Rhus integrifolia Carl Epling; Harlan Lewis 1940-4-21 sn Orange hills 6 mi. E of San Juan Capistrano Comment
  POM187629  Rhus integrifolia Joseph A. Ewan 1931-10-3 5201 Orange Below La Vida Soda Springs [now La Vida Mineral Springs], Carbon 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
  RSA386362  Rhus integrifolia Albert J. Perkins 1923-6-28 s.n. Orange Negre Canon Beach, Santa Ana. Comment
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Nov 1 2013
  UCR230234  Rhus integrifolia Dick Newell, Don Millar 2011-3-22 092 Orange Peninsular Range; Santa Ana Mtns., entrance gate to Weir Canyon, 1/3 mile NW of Outdoor Education Center, 2.4 miles NW (309 deg. ) of Irvine Lake dam 173 Comment
  UCR37790  Rhus integrifolia Steve Boyd, L. LaPre 1981-5-27 s.n. Orange Santa Ana Mtns., Northern end of the Santa Ana Mtns., along powerline road on ridges east of Weir Canyon & at the head of Gypsum Canyon. Comment
  LA62871  Rhus ovata W. Pequegnat; 1938-4-16 sn Orange Santa Ana Mts Comment
  RSA13147  Rhus ovata Percy C. Everett 1935-6-19 7240 Orange Trabuco Canyon, 2 mi. above E Forest Service Patrol Station. 762 Comment
  UCSB47593  Rhus ovata Roberts, Fred 1980-4-5 Orange Highway 74, San Juan Canyon, 0.4 km. SW Lower San Juan Picnic Ground, Santa Ana Mountains 390 Comment
  CAS-BOT-BC93073  Ribes californicum var. hesperium Carl B. Wolf 1930-1-30 1824 Orange Claymine Canyon, Santa Ana Mountains. 457 Comment
  POM12991  Ribes indecorum P. A. Munz, I. M. Johnston 1922-5-18 5310 Orange Santa Ana River Canyon. 457 Comment
  RSA439664  Ribes indecorum M. B. Dunkle 1938-3-26 5235 Orange San Juan Canyon. 30 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
  RSA0021661  Ribes indecorum J. D. Olmsted 1960-2-22 1103 Orange Drainage area to Black Star Canyon. Near CP at Beacon Pines Ranch. 854 Comment
  CAS-BOT-BC168943  Ribes malvaceum James R. Shevock 1975-4-6 4138 Orange Along Black Star Canyon Road above Hidden Ranch, Santa Ana Mountains 670 Comment
  UCSB52466  Ribes malvaceum var. viridifolium Roberts, Fred; Steele, K. 1982-12-26 Orange South Laguna: Niguel Hill; near end of Sea Island Dr; 1.9km SE Aliso Peak; 1.2km E Bench Mark 133 210 Comment
  CAS-BOT-BC186106  Ribes roezlii var. roezlii L. R. A. 1901-6-1 1833 Orange Santiago Peak 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
  CLARK-A1528-4151  Ribes speciosum John C. Roos 1962-5-6 Orange Santa Ana Mountains Comment
  RSA101786  Ribes speciosum R. Weatherby 1950-2-25 1028 Orange Eagle Canyon, Santa Ana Mts. 701 Comment
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Nov 18 2013
  RSA454953  Ribes speciosum M. B. Dunkle 1934-2-19 3840 Orange San Juan Canyon. 427 Comment
  RSA733956  Ribes speciosum Lucille Crawford 1932-5-1 s.n. Orange Silverado Canyon Comment
  RSA734883  Ribes speciosum Minor Warne 1934-03 s.n. Orange Gypsum canyon Comment
  UCR149497  Ribes speciosum Scott D. White, Michael Honer 2004-5-17 10384 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
  UCR4191  Ribes speciosum R. H. Sauer 1965-5-3 s.n. Orange Peninsular Range; Santa Ana Mtns., on roadside about 150 ft from Riverside County line, on Chase Drive [Corona, = Skyline Dr.; +- at Oak Flat] 823 Comment
  RSA0045587  Ricinus communis Anonymous 1949-1 s.n. Orange Santa Ana. CP3. Comment
  RSA267967  Ricinus communis E. W. Lathrop 1977-6-16 7655 Orange Silverado Canyon. Santa Ana Mts. Cleveland National Forest, Trabuco District. 365 Comment
  JEPS51547  Romneya coulteri John Thomas Howell 1927-7-22 2833 Orange Santa Ana Mountains, Claymine Canyon Claymine Canyon; Santa Ana Mountains, Claymine Canyon 182 Comment
  UC144803  Romneya coulteri Katharine Brandegee June 1910 Orange The Dumps Anaheim Comment
  SD255234  Romneya coulteri R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49767 Orange Santa Ana Mountains: Trabuco Canyon. Comment
  RSA799648  Rorippa palustris Justin M. Wood 2010-9-29 2741 Orange Santa Ana Canyon: Santa Ana River, southwest of Green River Golf Course and north of Hwy 91 and Santa Ana River Trail. 128 Comment
  CAS-BOT-BC147387  Rosa californica John Thomas Howell 1927-6-6 2445 Orange Santa Ana River bottom, Santa Ana [Canon] Canyon 152 Comment
  RSA375  Rosa californica J. T. Howell 1927-6-6 s.n. Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  UCR192115  Rosa californica A. C. Sanders, Fred M. Roberts, Amber O'Neal, D. E. Bramlet 2008-5-9 35294 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, c. 1.1 mi. E of Walnut Cyn Reservoir 277 Comment
  RSA0045579  Rosa californica R. H. McArthur 1934-4-21 s.n. Orange Limestone Boyscout Camp. Comment
  UCR128315  Royena lycioides subsp. lycioides A. C. Sanders, Mark A. Elvin 2003-10-12 27331 Orange Southern Coastal Slope, Irvine, UCI Arboretum, UCI campus near intersection of Jamboree Blvd. and Campus Dr. 15 Comment
  RSA652643  Rubus ursinus Matt Bogdanoff 1981-4-11 3 Orange Calif. Hwy 142, 2.5 miles (?) west of Sleepy Hollow. [Carbon Canyon Road, N of Yorba Linda] 183 Comment
  UCSB52860  Rubus ursinus Roberts, Fred; Marsh, K. 1984-4-21 Orange Santa Ana Mtns.: Lost Women Canyon, 2.3km WSW Bald Peak; 2.3km SE Bedford Peak 222 Comment
  SD245454  Rumex conglomeratus R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49586 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway. San Juan Creek. Comment
  UC1292604  Rumex crispus C. L. Hitchcock and C. V. Muhlick 1964-3-17 23072 Orange 8 mi e Yorba Linda; Santa Ana Canyon Comment
  UCR99558  Rumex crispus B. G. Pitzer 1996-4-30 2804 Orange San Joaquin Hills, Crystal Cove State Park, south of City of Irvine on State Hwy 1 (Pacific Coast Hwy) 15 Comment
  RSA713577  Rumex crispus R. E. Riefner Jr. 2005-7-9 5 -550 Orange City of Mission Viejo, Oso Creek, ca. 0.5 mi N of Paseo De Colinas on Camino Capistrano. 86 Comment
  POM201764  Rumex maritimus L. M. Booth 1932-6-28 s.n. Orange Bolsas Marsh. 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
  UCR250322  Rumex obtusifolius A. C. Sanders, Fred M. Roberts 2008-8-7 36004 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon at powerline crossing, 1.0 mi. (air) SSE of Walnut Canyon Reservoir 226 Comment
  RSA685938  Rumex salicifolius Fred M. Roberts 2003-3-27 5629 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, Chistianitos Canyon, along North Ride Trail, 1.37 km N Sycamore Gate, 0.36 km W Chistianitos Rd. 114 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
  UCR193385  Rumex salicifolius A. C. Sanders, T. B. Salvato 2008-5-13 35386 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Canyon above (S of) mouth of Hangman Tree Canyon, just below Modjeska Canyon confluence 366 Comment
  UCR241051  Rumex salicifolius var. denticulatus Robert DeRuff 2012-9-27 550 A Orange South Coast, Upper Newport Bay, upper end of Big Canyon near Jamboree Rd. 14 Comment
  CHSC26520  Ruppia maritima James Henrickson 1970-7-24 5023 Orange 3 miles NW of Huntington Beach; in Inner Bolsa Bay. 0 Comment
  UCR130499  Salicornia bigelovii R. E. Riefner Jr. 2003-8-17 03- 335 Orange South Coast, Costa Mesa, salt marsh along Santa Ana River, west of Talbert Regional Park 11 Comment
  RSA70034  Salicornia bigelovii F. W. Peirson 1924-8-29 5088 Orange 2.5 miles from Balboa on road inland along creek. Comment
  SFV20020  Salicornia depressa A. Dittmer, S. Dark 2004-10-3 75 Orange Bolsa Chica wetlands. South side of public parking lot off Highway 1. Comment
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Feb 9 2020
  RSA0059640  Salicornia pacifica L. C. Wheeler 1933-10-21 2222 Orange Newport Bay. 3 Comment
  CDA1044  Salicornia subterminalis D. G. Kelch 2006-12-9 6 .541 Orange Along Newport Back Bay Dr. in side canyon. 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
  RSA33609  Salicornia virginica N. C. Cooper 1942-11-9 887 Orange Balboa. Comment
  UCR211856  Salicornia virginica Valerie Soza, Kevin Clark, LeRoy Gross, Will Miller, Fred M. Roberts, G. D. Wallace 2001-4-4 1101 Orange South Coast, Seal Beach National Wildlife Refuge, Seal Beach U. S. Naval Weapons Station, across access road from Nature Center (Bldg 226) 3 Comment
  RSA5820  Salicornia virginica C. B. Wolf 1932-6-28 3802 Orange 25 ft. west and 600 ft. north of SE corner of SE 1/4 sect 29. 9 Comment
  CAS-BOT-BC129736  Salix bonplandiana Helen D. Geis 1902-1-1 554 Orange Santa Ana Comment
  POM182035  Salix exigua Carl B. Wolf 1932-4-15 2953 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Canyon. 120 Comment
  RSA4497  Salix exigua Carl B. Wolf 1932-3-16 2715 Orange Santa Ana River bottom, Rancho Santa Ana (between pear and walnut groves). 122 Comment
  RSA6452  Salix exigua Carl B. Wolf 1932-4-15 2954 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Canyon. 120 Comment
  UCR210360  Salix exigua T. B. Salvato, Billy Deane 2006-10-16 1929 Orange South Coast, Irvine, San Diego Creek flood control channel, between Michelson Drive and the 405 FWY 12 Comment
  UC536932  Salix exigua var. hindsiana Lawrence M. Booth 1932-6-9 1177 Orange 1 mi from ocean Santa Ana R. Comment
  CAS-BOT-BC108137  Salix gooddingii Le Roy Abrams 1903-4-16 3256 Orange Santa Ana River, near Orange Comment
  CAS-BOT-BC108143  Salix gooddingii L. R. Abrams 1913-7-14 5005 Orange Santa Ana River Bridge near Orange Comment
  IRVC29700  Salix gooddingii Mark A. Elvin, Barry S. Nerhus 2006-11-4 5241 Orange Huntington Beach; 1.5 km SW of Wintersburg, SW of jct Slater and Goldenwest; Shipley Nature Center. Southern Coastal 1 Comment
  RSA542354  Salix gooddingii Fred M. Roberts Jr., Gordon Marsh 1987-8-31 3603 Orange Santa Ana River: adjacent to Santa Ana, 0.5 km NE 17th St. bridge. 27 Comment
  RSA0034669  Salix hindsiana var. leucodendroides Carl B. Wolf 1932-3-16 2715 Orange Rancho Santa Ana, Santa Ana River bottom. 121 Comment
  RSA0038363  Salix hindsiana var. leucodendroides Carl B. Wolf 1932-4-15 2953 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Canyon. 120 Comment
  RSA725508  Salix laevigata Fred M. Roberts 2007-9-11 6566 Orange Aliso Viejo: tributary to Aliso Creek on west side of Moulton Pkwy., 0.2 km N Aliso Viejo Pkwy., adj. to Kinder Care Learning Center. 83 Comment
  SBBG59101  Salix laevigata C. B. Wolf 1932-4-8 2949 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Cyn 120 Comment
  SD1032  Salix laevigata Carl B. Wolf 1932-4-8 2949 Orange Rancho Santa Ane, near Santa Ana River, Santa Ana Canyon 120 Comment
  UCR279478  Salix laevigata Robert DeRuff 2012-3-12 576 B Orange South Coast, Newport Beach, Shellmaker Island, 0.08 mi. west of Back Bay Drive 2 Comment
  RSA0030858  Salix laevigata Carl B. Wolf 1932-4-8 2949 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Canyon. 120 Comment
  RSA0071938  Salix laevigata CNPS Accuracy Assessment Team 2014-7-19 1132 Orange Laguna Coast Wilderness Park. Comment
  UCSB57547  Salix laevigata Roberts, Fred 1984-4-18 Orange Wagon Wheel Regional Park: 3.0km NNE Median Survey Mark; 2.1km NW Bench Mark 422 190 Comment
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Oct 28 2018
  UCR103156  Salix lasiolepis Scott D. White 1997-3-26 4817 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
  CAS-BOT-BC128464  Salix lasiolepis var. lasiolepis Ira L. Wiggins 1966-3-22 20549 Orange Along stream bank, bottom of Silverado Canyon, about 5 mi above Ranger Station, Cleveland National Forest Comment
  RSA731917  Salix lasiolepis var. lasiolepis Fred M. Roberts, Sandra Leatherman 2007-11-27 6662 Orange Anaheim: Santa Ana River, Santa Ana Canyon, just west of Horseshoe Bend on S side of E La Palma Ave., about 0.3km E Weir Cyn. Rd. bridge. 100 Comment
  OBI74732  Salix lucida subsp. lasiandra Unknown 2009-11-9 09 -243 Orange City of Yorba Linda, Santa Ana Canyon, Santa Ana river bottom, E of Weir Canyon Rd, between Horseshoe Bend and vicinity of La Palma Ave. and Mercado del Rio 102 Comment
  RSA725966  Salix lucida subsp. lasiandra R. E. Riefner 2006-10-4 06 -475 Orange Peninsular Range; Santa Ana Mtns. Foothills: Lake Forest, Aliso Creek near Portola Parkway at El Toro Rd. 225 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
  UCR207195  Salsola O. F. Clarke 2003-12-10 s.n. Orange South Coast, Least Tern Reserve, just north of the mouth of the Santa Ana River, Huntington Beach 4 Comment
  SD243324  Salsola australis R. E. Riefner Jr. 2006-11-14 06 672 Orange City of Irvine, San Diego Creek; vicinity of Campus Ave. at University Drive. (Tustin 7.5'Q) 4 Comment
  UCR197705  Salsola australis A. C. Sanders, Fred M. Roberts 2008-9-18 36080 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge 330 Comment
  CDA1357  Salsola australis R. E. Riefner Jr. 2006-11-12 06 -558 Orange Newport Beach; Irvine Coast Trail at San Diego Creek, S of Jamboree Rd near SR-73 crossing. Comment
  IRVC29830  Salsola tragus Tom McCrainie, Mark A. Elvin 2006-9-23 4 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
  RSA12656  Salsola tragus E. R. Johnson 1934-7-26 6040 Orange Grain field west of the Rancho Santa Ana Botanic Garden. 198 Comment
  UC213455  Salsola tragus D. L. Crawford Sept. 1915 Orange Huntington Beach Comment
  RSA50451  Salvia apiana G. R. Campbell 1949-6-28 14009 Orange native to Botanic Garden, collected in picnic area. 198 Comment
  RSA5384  Salvia apiana B. D. Stark 1932-12-30 1705 Orange Rancho Santa Ana, 1/4 mile W of Roundtop. 457 Comment
  RSA542479  Salvia apiana Fred M. Roberts 1988-5-13 3972 Orange Lomas de Santiago: Loma Ridge, Upper Limestone Canyon near spring, 2.3 km NW Bolero Lookout. 439 Comment
  RSA650627  Salvia apiana Daniel Truong 1991-5-13 28 Orange Irvine Regional Park, left field adjacent to main entrance, within 1/4 mile radius of 'closed area' Comment
  RSA697874  Salvia apiana L. C. Hull 1934-4-27 s.n. Orange Trabuco Canyon. Comment
  IRVC26696  Salvia chionopeplica Mark A. Elvin 2004-4-4 3227 Orange UCI Arboretum Southern Coastal 15 Comment
  RSA0013963  Salvia columbariae Fred M. Roberts, D. E. Bramlet 2008-5-13 6955 Orange Upper Weir Cyn., central fork, 3.5 km NE Roberst Peak 369 Comment
  RSA0019002  Salvia leucophylla Steve Boyd, S. G. Jett, Valentin Arvizu 2008-4-24 11895 Orange About 0.25 mile outside of service gate in to Irvine Regional Park, north of Irvine Ranch Reservoir (Santiago Reservoir). 213 Comment
  RSA550598  Salvia leucophylla Fred M. Roberts 1989-4-26 4316 Orange Lomas de Santiago: Lower Santiago Canyon, 10.1 km SW Sierra Peak, ca. 1.3 km NW Irvine Lake spillway. 195 Comment
  RSA666  Salvia leucophylla J. T. Howell 1927-6-8 60 Orange Botany Garden, Rancho Santa Ana. [original location] 152 Comment
  CAS-BOT-BC229976  Salvia mellifera John Thomas Howell 1927-6-8 2459 Orange Southern Puente Hills, in the Santa Ana Canon [Canyon] 213 Comment
  RSA650628  Salvia mellifera Daniel Truong 1991-5-13 23 Orange Irvine Regional Park, left field adjacent to main entrance, within 1/4 mile radius of 'closed area' Comment
  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
  SFV3231  Salvia mellifera A. M. Johnson 1932-4-23 4028 Orange Dry hills north of Orange. Comment
  UC1618084  Salvia mellifera Donald G. Nelson 1935-3-17 170 Orange Carbon Canyon 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
  POM4055  Salvia spathacea I. M. Johnston 1918-5-4 951 Orange Hills back of Laguna Beach. 30 Comment
  RSA751396  Salvinia minima Rick E. Riefner Jr. 2008-7-9 8 -219 Orange City of Laguna Beach, bluff area W of West St. and Pacific Coast Highway. 4 Comment
  RSA713909  Salvinia molesta Richard E. Riefner 2004-9-25 4 -441 Orange City of Anaheim, floodplain N of Santa Ana River, Anaheim Wetlands Reserve, ca. 0.5 km E of Wier Canyon Rd. 102 Comment
  RSA477581  Sambucus mexicana Albert J. Perkins 1923-6-24 s.n. Orange Silverado Canyon Comment
  UCR193789  Sambucus mexicana A. C. Sanders, Fred M. Roberts 2008-7-3 35691 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
  RSA640718  Sambucus nigra subsp. caerulea L. C. Wheeler 1931-8-16 s.n. Orange Santa Ana River 152 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
  RSA588796  Sanicula arguta Fred M. Roberts, Dave Bontrager 1990-4-18 4564 Orange Rancho Mission Viejo: ridge between Christianitos and Gabino Canyons (Riverside Cement Lease Holding), 5.5 km SE Playa Survey Marker. 152 Comment
  UCR205956  Sanicula arguta Scott D. White 2003-3-21 8813 Orange Peninsular Range/Santa Ana Mtns, Foothills [above] Rancho Mission Viejo; E-facing slopes above an unnamed tributary to San Juan Creek 183 Comment
  RSA761933  Sanicula arguta Robt. Allen 2005-4-30 12506 Orange Caspers Wilderness Park, East Ridge Trail. 175 Comment
  RSA542436  Sanicula bipinnata Fred M. Roberts 1988-3-15 3853 Orange Rancho Mission Viejo: Verdugo Canyon, 2.6 km ENE Point Rancho Survey Mark 149 Comment
  CLARK-A1528-1451  Sanicula crassicaulis John C. Roos 1937-5-10 2078 Orange Comment
Read comments
Jun 24 2014
  RSA598960  Sanicula crassicaulis Scott D. White 1997-3-28 4832 Orange Above Modjeska Canyon, proposed water tank site 425 Comment
  SD126645  Scandix pecten-veneris Kathy Harper 1989-4-8 Orange Ronald W. Caspers Wilderness Area, Bell Canyon Trail. 149 Comment
  UCR56327  Scandix pecten-veneris Kathy Harper 1989-4-8 s.n. Orange Ronald W. Caspers Wilderness Area, along Bell Canyon Trail. 153 Comment
  SD253898  Schinus molle Jim Riley 2013-12-10 137 Orange San Clemente area; 0.29 miles E intersection Avenida Pico and Camino La Pedriza; just N San Diego County line 74 Comment
  UCSB41776  Schinus molle Kula, Stanley 1964-12-20 Orange Carbon Canyon Rd. Comment
  RSA649321  Schinus terebinthifolius Trudy R. Ericson 1976-4-1 22 Orange Along South Campus Drive, north of greenhouse enclosure, Campus, Califonia State University, Fullerton. 68 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
  RSA0013909  Schismus barbatus Fred M. Roberts 2012-4-24 7524 Orange San Joaquin Hills: Buck Gully, tributary canyon below San Joaquin Hills Road and 2.0 km W Signal Peak 167 Comment
  UCR215277  Schismus barbatus Fred M. Roberts 2008-3-27 6805 Orange South Coast, Dana Point; Dana Point Headlands, Center for Natural Lands Mgmt. Preserve, 0.8 km west Marine Institute, Dana Point Harbor 75 Comment
  POM202159  Schoenoplectus americanus L. M. Booth 1932-5-30 1134 Orange Bog on south side of Newport Lagoon. Comment
  UCR186688  Schoenoplectus americanus T. B. Salvato, Katie Kurtz, Mitch Provance 2006-10-15 1909 Orange South Coast, Irvine, San Diego Creek flood control channel, between Campus Drive and Michelson Drive 6 Comment
  RSA366053  Schoenoplectus americanus H. L. Bauer 1929-5-7 s.n. Orange Santa Ana Canyon. Comment
  CAS-BOT-BC111264  Schoenoplectus californicus Mrs. M. T. Bradshaw 1901-11-1 s.n. Orange Orange, Orange County. Comment
  UCSB56474  Schoenoplectus californicus Thorne, Robert 1975-4-6 Orange San Joaquin Marsh: near Irvine and coast Comment
  RSA0059073  Schoenoplectus californicus CNPS Accuracy Assessment Team 2014-7-7 9313 Orange San Joaquin Freshwater Marsh Reserve. Comment
  RSA639848  Schoenoplectus maritimus Sandy Leatherman 1998-9-3 48 Orange Dana Point: Monarch Beach, northeast fo the intersection of State Highway 1 and Crown Valley Parkway, and west of Salt Creek. 30 Comment
  POM50488  Schoenoplectus tabernaemontani Helen D. Geis 1902-11 s.n. Orange Unspecified. Comment
  RSA716730  Scirpus microcarpus Fred M. Roberts, David E. Bramlet 2004-11-5 6131 Orange Rancho Mission Viejo: Donna O Neill Land Conservancy, Gato Cyn., tributary to Cristianitos Cyn., 0.23km W Gato Gate. 102 Comment
  RSA769338  Scrophularia californica E. W. Lathrop 1974-6-27 7413 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  SD139988  Scrophularia californica B. Pitzer, S. Hemstreet 1992-5-21 1944 Orange Cleveland National Forest; State Hwy 74, 1 mi. uphill from the 2,000 ft. marker, and to the left ca. .1 mi. on an old paved road 762 Comment
  UC1125690  Scrophularia californica A. Lewis Apr 1934 385 Orange Silverado Canyon; Cleveland Nat'l Forest, Corona Quadrangle Comment
  UCR191024  Scrophularia californica A. C. Sanders, Fred M. Roberts 2008-4-22 35014 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
  RSA650906  Scrophularia californica Diane T. Liggett 1981-5-16 4 Orange Riverside Freeway (91) east to Imperial Hwy, South to Nohl Ranch Road, east to Serrano Ave., south on Hidden Cyn. Road., .6 km into Weir Cyn. Comment
  RSA425208  Scrophularia californica subsp. floribunda F. R. Fosberg 1931-6-21 S- 5134 Orange Silverado Canyon. Santa Anita Mts. Comment
  RSA701800  Scrophularia californica subsp. floribunda Fred M. Roberts, David E. Bramlet 2003-6-6 5889 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, Cristianitos Cyn., 0.7km SW int. Cristianitos and TRW Rds. and 0.23km W of SDGandE substation. 94 Comment
  UC1618101  Scutellaria tuberosa Donald G. Nelson 1935-7-6 258 Orange San Juan Canyon Comment
  CAS-BOT-BC61962  Selaginella John Thomas Howell 1927-6-26 2611 Orange Claymine Canyon, n. Santa Ana Mts. 457 Comment
  RSA156020  Selaginella asprella Peter H. Raven 1962-5-18 17755 Orange Santa Ana Mountains: summit of Santiago Peak, Santa Ana Mountains, 1737 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
  RSA518450  Selaginella bigelovii C. W. Tilforth, Dorothy Tilforth 1977-3-6 1254 Orange Small canyon west of Gypsum Canyon, south side of Santa Ana River, Santa Ana Canyon 152 Comment
  RSA12904  Senecio californicus P. C. Everett 1935-3-15 s.n. Orange Rancho Santa Ana Herbarium. Botanic Garden Area, near corner post 3938 183 Comment
  RSA17009  Senecio californicus P. C. Everett 1936-3-19 7732 Orange Santa Ana Botanic Garden. 183 Comment
  RSA0124181  Senecio flaccidus var. douglasii M. B. Dunkle 1934-3-18 3973 Orange Upper San Juan Canyon. 610 Comment
  RSA710592  Senecio linearifolius Mark A. Elvin 2003-8-24 3011 Orange Southern coastal: San Jaquin Hills, Irvine, UCI, 100m N of the intersection of Shady Canyon Drive and Bonita Canyon Road. 72 Comment
  CHSC101560  Senecio linearifolius var. linearifolius Scott D. White 2003-7-7 9613 Orange Irvine. UC Irvine Campus. Directly west of T-intersection of Shady Canyon Cr. w/ Bonita Canyon Dr. (= Culver Dr.). 70 Comment
  UC1928639  Senecio linearifolius var. linearifolius Scott D. White 2003-7-7 9613 Orange Coastal plain: Irvine. UC Irvine Campus. Directly west of T-intersection of Shady Canyon Cr. w/Bonita Canyon Dr. (= Culver Dr.). Comment
  UCR204762  Senecio linearifolius var. linearifolius Scott D. White 2003-7-7 9613 Orange Coastal Plain, Irvine, UC Irvine Campus. Directly west of T-intersection of Shady Canyon Creek with Bonita Canyon Dr. (= Culver Drive) 70 Comment
  SEINET4103054 Image available Senecio sylvaticus O. M. Clark 1947-1 14374 Orange Island in Crescent Bay. Comment
  RSA0127340  Senecio vulgaris Fred M. Roberts 2016-3-17 8022 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
  CAS-BOT-BC364601  Senecio vulgaris Ira L. Wiggins 1966-3-4 20490 Orange Shoulder of Peralta Avenue, near junction of Newport Freeway and Riverside Highway Comment
  POM201707  Sesuvium verrucosum L. M. Booth 1932-7-4 s.n. Orange Newport Lagoon. Comment
  CAS-BOT-BC438200  Sesuvium verrucosum Carl B. Wolf 1932-7-7 3847 Orange Bryant Ranch, Bixby Ave., field 100 ft. N. of Rd. 7/10 mi. W. of Hansen Rd; 100 ft. N. & 2/10 mi. W. of S.E. corner of N.E.40 of N.W.160 of Sect. 34. T4S R11W. 7 Comment
  IRVC1826  Setaria lutescens J. B. Anderson 1966-5-2 621 Orange Santa Ana: along Newport Freeway at 17th Street. Southern Coastal Comment
  CAS-BOT-BC243592  Setaria parviflora Carl B. Wolf 1932-6-13 3725 Orange Malvern and Nicholas Aves., Fullerton 53 Comment
  POM50701  Setaria parviflora H. Droege 1902-05 s.n. Orange Santa Ana Orange County Comment
  RSA697731  Setaria parviflora Rankin s.n. Orange Santa Ana. Comment
  RSA226767  Setaria verticillata I. L. Wiggins 1965-11-7 20361 Orange Vacant lot between State College Blvd. and Troy High School Campus, Fullerton. 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
  UCD116756  Sidalcea neomexicana J. C. Elmore 1929-4-1 2168 Orange Santa Ana. Comment
  CAS-BOT-BC384501  Silene antirrhina LeRoy Abrams 1903-4-18 3272 Orange Trabuco arroyo, near Capistrano Comment
  POM156679  Silene antirrhina L. R. Abrams 1903-4-18 3272 Orange Trabuco arroyo, near San Juan Capistrano. Comment
  RSA734348  Silene antirrhina A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34641 Orange Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 396 Comment
  RSA627534  Silene antirrhina Sandy Leatherman, Fred M. Roberts, B. Leatherman, Trish Smith 1998-5-23 14 Orange Black Star Canyon: Spur Road off of Black Star Canyon Road. 335 Comment
  UCR275222  Silene coniflora A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35312 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along fire line/bulldozer cut, c. 1.5 mi. east of Walnut Cyn Reservoir 346 Comment
  IRVC22793  Silene gallica Fred M. Roberts 1985-5-16 1816 Orange mouth of Laurel Canyon, 4.0km SE Signal Peak, San Joaquin Hills 85 Comment
  RSA797354A  Silene gallica D. M. McF 1956-4-11 7 Orange Moulton Ranch, South Coast. 152 Comment
  UCR192495  Silene gallica A. C. Sanders, Fred M. Roberts 2008-3-25 34563 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  UCR193496  Silene laciniata A. C. Sanders, T. B. Salvato 2008-5-13 35361 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Canyon above (S of) mouth of Hangman Tree Canyon, just below Modjeska Canyon confluence 366 Comment
  RSA439886  Silene laciniata subsp. major M. B. Dunkle 1933-5-30 3571 Orange Carbon Canyon Comment
  RSA734809  Silybum marianum A. C. Sanders, Fred M. Roberts 2008-5-6 35269 Orange Lomas de Santiago, upper Limestone Canyon, 2.9 mi. NNW of El Toro 366 Comment
  UCSB48099  Sisymbrium irio Roberts, Jr., Fred 1981-4-11 Orange Ortega Hwy.; Hwy. 74, 5.2 km. E San Juan Capistrano near San Juan Creek crossing 52 Comment
  CAS-BOT-BC75236  Sisymbrium irio Ira L. Wiggins 1966-2-5 20425 Orange Roadside along Newport Boulevard, 4.5 miles north of Orange County Fairgrounds. Comment
  UCR191002  Sisymbrium officinale A. C. Sanders, Fred M. Roberts 2008-4-22 35047 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, slopes of south end of Loma Ridge and at head of Limestone Canyon, c. 2.5 miles SW of Silverado 488 Comment
  UCD115604  Sisymbrium orientale Rimo Bacigalupi 1962-3-16 8229 Orange along U.S. 101, 2 miles north of Doheny Beach State Park. Comment
  UCR191233  Sisyrinchium bellum A. C. Sanders, Fred M. Roberts 2008-4-22 35029 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Limestone Canyon, c. 2 miles SW of Silverado 396 Comment
  UCR241899  Sisyrinchium bellum Fred M. Roberts 2012-4-24 7536 Orange Peninsular Ranges; coastal foothills, 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
  UCR256944  Sisyrinchium bellum Naomi Fraga 2009-5-11 2716 Orange Santa Ana Mountains, Cleveland National Forest, San Juan Loop Trail just west of Sugarloaf Spur Trail 912 Comment
  POM9050  Sisyrinchium bellum Philip A. Munz, R. D. Harwood 1920-4-24 2751 Orange Sierra [Freemont] Canyon, Santa Ana Mountains. 366 Comment
Read comments
Sep 17 2011
  RSA427318  Solanum americanum J. C. Marvin 1923-4-1 s.n. Orange Trabuco Canyon Comment
  RSA752039  Solanum americanum Fred M. Roberts 2008-3-27 6809 Orange Dana Point: Dana Point Headlands, CNLM Preserve near NE Gate, 0.5km W Marine Institute (Dana Point Harbor). 75 Comment
  RSA800665  Solanum americanum Justin M. Wood 2010-9-29 2745 Orange Santa Ana Canyon: Santa Ana River, southwest of Green River Golf Course and north of Hwy 91 and Santa Ana River Trail. 128 Comment
  UCR154353  Solanum americanum Mark A. Elvin 2004-5-2 3415 Orange Southern Coastal, Irvine: San Joaquin Freshwater Marsh, near Campus and University Drives; 1.7 km (air) NNW UC Irvine campus center 3 Comment
  UCR222871  Solanum americanum T. B. Salvato 2010-10-27 5133 Orange South Coast, Dana Point Headlands, Hilltop Park, north of Scenic Dr. and west of Green Lantern St., overlooking Dana Point Harbor 84 Comment
  UCSB48116  Solanum americanum Roberts, Fred 1981-4-12 Orange Santa Ana Mtns.: San Juan Canyon, Hwy 74, 1.3km by road E San Juan Guard Station: 0.9km SE Juan Rancho Survey Mark 89 Comment
  RSA184115  Solanum douglasii I. L. Wiggins 1965-11-6 20352 Orange Near well #14, Kramer Oil Estates, near end of county road to Rancho Santa Ana. Comment
  RSA549241  Solanum douglasii Scott D. White 1992-9-29 845 -a 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
  UCR137188  Solanum douglasii M. B. Dunkle 1933-3-5 3093 Orange Southern Coast, San Juan Canyon 305 Comment
  UCR193021  Solanum douglasii A. C. Sanders, Mitch Provance 2008-5-20 35417 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago area, Santiago Creek Canyon, c. 3/4 mile below Modjeska Canyon confluence 355 Comment
  UCSB48090  Solanum douglasii Roberts, Fred 1981-5-2 Orange Mission Viejo: Camino Capistrano, 1.7km N Crown Valley Parkway 49 Comment
  POM311835  Solanum lanceolatum Karen Hosterman 1957-1-19 825 Orange Laguna Beach City, near cultivated area. 11 Comment
  RSA2067  Solanum umbelliferum Carl B. Wolf 1931-3-6 1862 Orange North of base of Trabuco Modjeska Grade, west slope of Santa Ana Mts. 305 Comment
  RSA427453  Solanum umbelliferum E. Crow 1929-2-22 169 Orange Gypsum Canyon, Santa Ana Mountains. Near Corona. Comment
  RSA708283  Solanum umbelliferum Scott D. White, Jennifer H. Jones 2005-3-31 10856 Orange South Coast: City of Laguna Beach. 549 Nyes Place. Proposed home site on ca. 0.5 acre. 91 Comment
  RSA733735  Solanum umbelliferum Jeanne Paxton 1934-2-25 s.n. Orange Sugar Loaf Canyon, Arch Beach Comment
  UC484257  Solanum umbelliferum C. B. Wolf 1931-3-6 1850 Orange 1/2 mi below Trabuco Camp Ground (w slope Santa Ana Mountains, Trabuco Canyon); Santa Ana Mountains, Trabuco Canyon 609 Comment
  CHSC13479  Solanum xanti T. N. Casale 1974-4-11 4 Orange At base of road shoulder, ca. 5.1 mi ne of the Mission San Juan Capistrano on Hwy 74. 176 Comment
  IRVC26673  Solanum xanti Mark A. Elvin 2004-4-4 3233 Orange UCI Arboretum Southern Coastal 15 Comment
  SEINET11808327  Solidago californica S. A. Thompson, Rawlins, J. E. 1988-1 5264 Orange Cleveland National Forest, 3.8 mi E of San Juan Hot Springs on CA 74 370 Comment
  RSA788805  Solidago occidentalis R. F. Thorne 1977-11-21 49982 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp Comment
  UCR210358  Solidago occidentalis T. B. Salvato, Billy Deane 2006-10-16 1931 Orange South Coast, Irvine, San Diego Creek flood control channel, between Michelson Drive and the 405 FWY 12 Comment
  UCR250137  Solidago velutina subsp. californica Dick Newell, Judy Booth 2013-11-17 342 Orange Peninsular Range; Santa Ana Mtns., Maple Springs Rd., Cleveland National Forest, 1.5 mil. NE of Maple Springs gate 701 Comment
  CAS-BOT-BC364909  Solidago velutina subsp. californica Mrs. R. W. Summers 1887-8-1 s.n. Orange Attwoods [Atwood ?] Hill Comment
  RSA0127412  Sonchus asper Fred M. Roberts 2016-3-17 8007 Orange San Joaquin Hills: City of Irvine, Bommer Canyon, east fork, 0.3 km ESE Cattle Camp near East Fork Trail. 152 Comment
  RSA947  Sonchus asper J. T. Howell 1928-4-7 903 Orange Santa Ana River bottom, Rancho Santa Ana 152 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
  IRVC19392  Sonchus oleraceus R. L. Allen 1983-2-12 A629 Orange Fullerton; Hillcrest Park, slope bordering E Valley View Drive. Southern Coastal Comment
  IRVC920  Sonchus oleraceus L. Stilgenbauer 1965-4-15 Orange Corona del Mar, 339 Milford. Newport Beach Comment
  POM202167  Sonchus oleraceus L. M. Booth 1932-6-15 1193 Orange Marsh border East of Huntington Beach. Comment
  UCR239617  Sonchus oleraceus Fred M. Roberts 2012-4-27 7541 Orange Lomas de Santiago, Loma Ridge, west of SR 241, tributary to 'Las Flores' Canyon, near East Loma Ridge Road, 1.6 km southwest Irvine Lake Park Campground and 1.2 km east-southeast of Orange County Emergency Operations Center, Hill 1311 308 Comment
  POM202168  Sonchus oleraceus L. M. Booth 1932-7-21 1297 Orange Near Sunset Beach, Anaheim Marsh. Comment
  RSA647892  Sonchus oleraceus Mark Breidenbaugh, Caralisa Breidenbaugh 1992-5-24 30 Orange 1000 ft. northwest of Chino Hills State Park Boundary. 243 Comment
  HSC10988  Sorghum halepense D. W. Snell 1964-3-24 7 Orange 1 mi. E of Brea on Birch St. Comment
  UCSB48224  Sorghum halepense Roberts, Fred 1981-6-24 Orange San Juan Capistrano; 3.2 km. S. Saddleback Community College on Rancho Viejo Road 42 Comment
  OBI22235  Spartina foliosa Peter H. Raven 1957-9-28 11379 Orange N limits of Surfside Comment
  POM146217  Spartina foliosa F. M. Reed 1927-11-25 5676 Orange Anaheim Landing Comment
  RSA91844  Spartina foliosa F. W. Peirson 1924-8-29 5083 Orange 2.5 miles from Balboa on road inland along creek. Comment
  CSUSB1332  Spartium junceum Cesareo Perez 1971-5-4 Orange South Mesa Drive and Lemon Street in Villa Park Comment
  IRVC2456  Spartium junceum K. Durica 1965-3-28 s.n. Orange Costa Mesa. Southern Coastal Comment
  RSA696570  Spergula arvensis Elisabeth Norland 1929-3-16 s.n. Orange Costa Mesa. Comment
  UCSB48380  Spergula arvensis Roberts, Fred 1982-5-22 Orange Dana Point: jct. of Stone Hill Dr. & Selva Rd.; 1.0 km ESE Dana Hills High School; 1.7 km SW Marco Forster Junior High School 40 Comment
  SD185179  Spergularia B. G. Pitzer 1996-4-30 2791 Orange Crystal Cove State Park. 14 Comment
  UCR99892  Spergularia Scott D. White 1993-3-5 1123 Orange Tustin. Marine Air Corps Air Station: SE of Red Hill Ave and NE of Barranca 15 Comment
  UCR137445  Spergularia bocconi Scott D. White, Brian Leatherman 1997-6-12 5339 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
  IRVC20156  Spergularia bocconii R. L. Allen 1978-4-1 Orange 60m NE Golden Lantern [and Acapulco Rds.] jct. Dana Point Comment
  POM202104  Spergularia macrotheca L. M. Booth 1932-5-19 1062 Orange Newport Bay. Comment
  RSA0097844  Spergularia macrotheca James Snow 1932-1 s.n. Orange Bryant Ranch, near Long Beach. Station #1. Comment
  RSA0097846  Spergularia macrotheca F. W. Peirson 1924-5-31 4658 Orange Laguna Canyon, Laguna Beach. 91 Comment
  UCR103161  Spergularia macrotheca var. macrotheca Scott D. White 1997-3-26 4821 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
  UCR180302  Spergularia marina Scott D. White 1998-6-26 6780 Orange Irvine, University of California, Irvine campus: low-lying seasonal wetland along mapped intermittent 'blueline' stream just north of Bonita Canyon Drive 70 Comment
  RSA0098511  Spergularia marina R. F. Thorne 1984-1 s.n. Orange San Joaquin Marsh, Newport Back Bay. Comment
  RSA0098540  Spergularia marina James Henrickson 1970-7-25 5089 Orange 3.5 miles NW of Huntington Beach growing along graded inner slope of East Garden Grove-Wintersburg Flood Control Channel near Bolsa Chica Salt Marsh. 0 Comment
  CAS-BOT-BC236656  Sporobolus airoides Carl B. Wolf 1936-4-22 7771 Orange East of Los Alamitos, along Hansen Road, 100 yds. north of Cerritos Ave. 15 Comment
  SBBG119215  Sporobolus indicus R. E. Riefner 2004-12-12 04 -553 Orange Jeffrey Rd near Irvine Center Drive, City of Irvine 36 Comment
  JEPS62963  Stachys ajugoides Alice King May, 1908 Orange near Tustin Comment
  SEINET9366755  Stachys ajugoides Unknown 2008-6-17 35488 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago, West Loma Ridge Spur Road c. 1 km E of Sheriff's Training Facility and 1.6 km SW of Irvine Lake, between hwys 241 and 261 (Black Star Canyon 7.5' topo.) East-facing burned slope, former brush patch dominated by Rhus laurina, surrounded by grassland. Comment
  SBBG105052  Stachys rigida S. Boyd, D. Banks 1994-4-5 8276 Orange ridgeline between Lucas and Verdugo Cyns W of Verdugo Potrero, near transit point "Lucas" 426 Comment
  RSA446699  Stachys stebbinsii F. R. Fosberg 1931-6-2 S- 5129 Orange Silverado Canyon, Santa Ana Mountains. Comment
  CAS-BOT-BC393822  Stellaria media Ira L. Wiggins 1966-3-5 20518 Orange about 1/2 mi. W of El Toro Post Office, along Highway S-18 Comment
  POM122552  Stephanomeria diegensis Marcus E. Jones 1924-8-26 s.n. Orange Newport. Comment
  POM201781  Stephanomeria exigua subsp. coronaria L. M. Booth 1932-7-27 1325 Orange Corona del Mar, Newport Beach, Bluff Ravine Comment
  UCR192109  Stipa coronata A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35310 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along fire line/bulldozer cut, c. 1.5 mi. east of Walnut Cyn Reservoir 346 Comment
  SD251164  Stipa coronata R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49617 Orange Santa Ana Mountains: about 1 mile above San Juan Fire Station. Dry, rocky bluffs above San Juan Creek Comment
  UCR37802  Stipa lepida Steve Boyd 1981-5-13 s.n. Orange South Coast, Pelican Hill, Irvine Ranch Property, San Joaquin Hills south of Corona del Mar 218 Comment
  RSA0045359  Stipa lepida Keith E. Hoffmaster 1935-4-14 126 Orange Live Oak can., Santa Ana Mts. Comment
  UCR177424  Stipa pulchra Scott D. White, Amanda Duchardt 2003-3-27 8852 Orange Peninsular Ranges/Santa Ana Mtns, Canyon bottom and W-facing slopes above Canada Gobernadora 183 Comment
  RSA0048676  Stipa pulchra Keith E. Hoffmaster 1935-3-17 551 Orange Near El Toro (Trabuco Road). Comment
  IRVC27015  Strumaria truncata A. C. Sanders, Mark A. Elvin 2003-11-9 27357 Orange Irvine: UCI Arboretum, UCI campus near intersection of Jamboree Blvd. and Campus Dr. Southern Coastal 15 Comment
  POM6313  Stuckenia pectinata L. T. Street, Williams 1919-5-4 2690 Orange Laguna Lakes. [now Big Laguna Lake, San Diego Co.] Comment
  UCR192110  Stylocline gnaphaloides A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35311 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along fire line/bulldozer cut, c. 1.5 mi. east of Walnut Cyn Reservoir 346 Comment
  UCR238205  Stylocline gnaphaloides Mark A. Elvin 2003-3-30 2391 Orange South Coast, north side of UC Irvine Preserve, between core of UCI campus (E Peltason Dr.) and Hwy 73 69 Comment
  UCSB52865  Stylocline gnaphaloides Roberts, Jr., Fred 1982-4-3 Orange Dana Point Headlands; north of Dana Strand Rd., 0.5 km. W Dana Point Harbor; 0.8 km. SSW Richard Henry Dana School 80 Comment
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Dec 12 2018
  CAS-BOT-BC422882  Stylomecon heterophylla P. A. Munz 1918-5-4 2171 Orange Laguna Beach Region. Laguna Canon [Canyon] Comment
  UCR58633  Styrax officinalis var. redivivus Reid Moran, D. Axelrod, Bob Smart 1975-7-18 22599 Orange Santa Ana Mtns., N slope of ridge, upper Trabuco Canyon 900 Comment
  RSA263773  Styrax redivivus Robert Harvey H- 85 -66 Orange Tan Mine Canyon. Comment
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Oct 15 2013
  UCSB10703  Styrax redivivus Lloyd, Robert 1959-4-17 Orange 8.5 miles south of West Corona on the Oak Flats Fire Road 883 Comment
  CAS-BOT-BC110387  Suaeda esteroa C. W. Tilforth 1975-9-6 1044 Orange Northeast shoreline of Upper Bay, Newport Beach. Comment
  POM202729  Suaeda esteroa L. M. Booth 1932-12-13 1373 Orange Newport Bay. Comment
  RSA678455  Suaeda esteroa Valerie Soza, Kevin B. Clark, LeRoy Gross, Will Miller, Fred Roberts, Gary D. Wallace 2001-4-4 1108 Orange Seal Beach National Wildlife Refuge: Seal Beach U. S. Naval Weapons Station, across access road from Nature Center (Bldg 226). 3 Comment
  SEINET179446  Suaeda esteroa Lawrence M. Booth 1932-12-13 1373 Orange Newport Bay. Comment
  RSA5956  Suaeda moquinii C. B. Wolf 1932-7-7 3850 Orange Bryant Ranch, 600 ft. N of Bixby Ave., 1 mi. W. of Hansen Road., (600 ft. N and 100 ft. W. of S.E. corner of N.E. 1/4 of N.E. 1/4 of Sect. 33) Comment
  CAS-BOT-BC110407  Suaeda taxifolia Allan C. Keller s.n. Orange One mile south of Huntington Beach on U.S. Highway Alternate 101. 1 Comment
  RSA438590  Suaeda taxifolia Joseph A. Ewan 1932-7-29 7712 Orange Newport lagoon Comment
  POM6325  Symphoricarpos mollis P. A. Munz, L. T. Street, G. Williams 1919-5-4 2685 Orange Laguna Canyon. Comment
  RSA542650  Symphoricarpos mollis Fred M. Roberts, R. E. Riefner 1988-7-19 4116 Orange Santa Ana Mountains region: Upper Silverado Canyon, Maple Springs Truck Trail, 2.1Km NNW Modjeska Peak. 1260 Comment
  RSA696575  Symphoricarpos rotundifolius Anonymous s.n. Orange Santa Ana Comment
  JEPS40743  Symphyotrichum lanceolatum var. hesperium L. M. Booth 1933-10-18 Orange Newport Comment
  UCSB48041  Symphyotrichum subulatum Roberts, Jr., Fred 1981-9-26 Orange Newport Beach; Pacific Coast Highway, 0.3 km. W Newport Blvd.; 0.4 km. SE Bench Mark 10 3 Comment
  SBBG47291  Symphyotrichum subulatum var. parviflorum R. N. Philbrick 1973-8-31 Orange just E of UC Irvine Botanic Garden Comment
  UCD136700  Symphyotrichum subulatum var. parviflorum J. C. Roos 1949-10-1 4680 Orange Doheney Beach. 3 Comment
  CAS-BOT-BC98283  Symphyotrichum subulatum var. parviflorum David D. Keck 1932-9-30 1911 Orange San Clemente, south side of town along highway. Comment