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/consortium/).
 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
  POM739  Abronia maritima D. L. Crawford 1916-7-28 s.n. Orange Abalone Point Comment
  CAS-BOT-BC229406  Abronia umbellata Marcus E. Jones 1924-8-26 s.n. Orange Newport Comment
  RSA0025912  Abronia umbellata Minor Warne 1934-04 s.n. Orange Near Bolsa. [County not listed but probably Orange] Comment
  RSA700927  Abronia villosa var. aurita Keith E. Hoffmaster 1933-4-5 s.n. Orange Near Newport Comment
Read comments
Aug 27 2011
  IRVC29869  Acacia cyclops Mark A. Elvin, Dean Kelch 2006-12-9 5291 Orange Newport Backbay; Big Canyon, lower end. Southern Coastal 3 Comment
  UCR239623  Acacia redolens Fred M. Roberts 2012-4-24 7497 Orange San Joaquin Hills, Buck Gully, west of intersection of Ridge Park Road and Newport Coast Drive, 1.5 km west of Signal Peak 179 Comment
  CAS-BOT-BC333254  Acer macrophyllum Le Roy Abrams 1901-6-15 1819 Orange South Fork Santiago Creek 914 Comment
  IRVC22668  Acer macrophyllum Fred M. Roberts 1985-5-9 1729 Orange Santa Ana Mountains: Upper McVicker Canyon, 1.8km NE Los Pinos Peak. Peninsular Ranges 1113 Comment
  IRVC5  Acer macrophyllum A. S. Boughey 1965-3-5 53 Orange Trabuco Canyon. Santa Ana Mountains Comment
  RSA76986  Acer macrophyllum F. W. Peirson 1925-4-11 5736 Orange Silverado Canyon, Santa Ana Mountains. 610 Comment
  RSA689446  Achillea millefolium Scott D. White, Amanda Duchardt 2003-4-10 9008 Orange Santa Ana Mountain Foothills: Ridges & east-facing canyons above Trampas Canyon. 122 Comment
  UCR192219  Achillea millefolium A. C. Sanders, Fred M. Roberts 2008-5-6 35271 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, upper Limestone Canyon, 2.9 mi. NNW of El Toro 379 Comment
  UCR215282  Achillea millefolium Fred M. Roberts 2008-5-14 6969 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
  UCSB52931  Acmispon micranthus Roberts, Jr., Fred 1983-5-19 Orange Laguna Beach: Sycamore Hills, near Laguna Canyon Rds.; 1.6 km. NNE jct. El Toro and Laguna Canyon Rds.; 5.1 km. ESE Signal Peak 130 Comment
  POM201749  Acourtia microcephala L. M. Booth 1932-7-4 1243 Orange Newport Lagoon. Comment
  POM50881  Acourtia microcephala L. R. Abrams 1901-06 1855 Orange Trabuco Canyon Comment
  RSA171080  Acourtia microcephala R. F. Thorne 1963-7-26 32855 Orange Tin Mine Canyon above Beek's Spring, Trabuco District, Cleveland National Forest. 732 Comment
  UCR174184  Acourtia microcephala A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33021 Orange Peninsular Range; Santa Ana Mtns., San Juan Canyon, from Lower San Juan Picnic Area to c. 1 mile downstream, parallel to Hwy 74 and near Riverside Co. line 396 Comment
  UCR193045  Acourtia microcephala A. C. Sanders, Fred M. Roberts 2008-6-17 35485 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, West Loma Ridge Spur Road c. 1 km east of Sheriff's Training Facility and 1.6 km SW of Irvine Lake, between hwys 241 and 261 357 Comment
  RSA699138  Actaea spicata Unspecified s.n. Orange Brook Bank. Comment
  RSA649082  Adenostoma fasciculatum Karl Price 1988-4-29 13 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
  RSA790698  Adenostoma fasciculatum Jeanne Paxton 1934-4-21 5 Orange Modjeska Canyon. PR8. Comment
  UC1544779  Adenostoma fasciculatum D. S. Seigler and E. Rodriguez 1978-5-13 11003 Orange Trabuco Canyon Comment
  UCR97813  Adenostoma fasciculatum Scott D. White 1997-3-28 4848 Orange Santa Ana Mountains, Above Modjeska Canyon, proposed water tank site. 488 Comment
  RSA5280  Adenostoma fasciculatum var. fasciculatum B. D. Stark 1932-12-15 1700 Orange Rancho Santa Ana 145 Comment
  RSA598917  Adenostoma fasciculatum var. fasciculatum Scott D. White 1997-3-28 4848 Orange Above Modjeska Canyon, proposed water tank site. 425 Comment
  CAS-BOT-BC175450  Adiantum capillus-veneris A. C. Sanders; Fred M. Roberts 2008-7-16 35836 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago, Dripping Spring off LImestone Canyon, c. 7.5 mi. ESE of Tustin 391 Comment
  CDA1085  Adiantum capillus-veneris D. G. Kelch 2006-12-9 6 .532 Orange Newport Bay, Back Bay Dr. betweeen marsh and steep bluff. Comment
  RSA588887  Adiantum capillus-veneris Fred M. Roberts 1990-6-4 4667 Orange Santa Ana Mts. Hall Canyon, 1.8 km NNW Mustand Spring at east edge of flying B Ranch. 421 Comment
  RSA788246  Adiantum capillus-veneris R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49622 Orange Santa Ana Mountains: about 1 mile above San Juan Fire Station Comment
  UC2031958  Adiantum capillus-veneris R. E. Riefner Jr. 2012-2-23 12 -43 Orange City of Laguna Beach, Treasure Island Beach, vicinity of Wesley Drive and South Coast Highway Comment
  RSA2  Adiantum jordanii J. T. Howell 1927-6-17 158 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA689447  Adiantum jordanii Scott D. White, Amanda Duchardt 2003-4-10 9009 Orange Ridges & east-facing canyons above Trampas Canyon. 122 Comment
  UCR215286  Adiantum jordanii Fred M. Roberts 2008-5-14 6960 Orange Lomas de Santiago, Loma Ridge, upper Bee Flat Canyon below Loma Ridge Road, 1.3 km north of Bee Peak and 5.4 km NW of Bolero Lookout. Irvine Ranch Conservancy 337 Comment
  IRVC21803  Adiantum jordanii B. L. Parry, F. M. Roberts 1926-3-13 162 Orange Santa Ana Canyon. M.E. Jones POM 122866. San Joaquin Hills: Moro Canyon, Crystal Cove State Park, 2.9km SE Signal Peak; 3.5km NE El Morro School, Yorba Linda 150 Comment
Read comments
Oct 25 2017
  IRVC3114  Adiantum jordanii Diane Ibbetson 1965-3-12 HS 0577 Orange Corona Del Mar Southern Coastal Comment
  RSA728658  Aeonium haworthii R. E. Riefner 2006-8-26 06 -377 Orange City of Laguna Beach, bluffs along Aliso Creek, N slope of Aliso Peak, Pacific Coast Hwy., E. of Aliso Beach. Aliso Beach County Park. 12 Comment
  RSA695487  Ageratum houstonianum Ruth Greenwald, Virginia Pritchard 1938-05 s.n. Orange Santa Ana. Comment
  NY7051  Agoseris cinerea L. Abrams 1901-6-15 1816 Orange Santiago Peak trail. 914.4 Comment
  CAS-BOT-BC13322  Agoseris retrorsa L. R. Abrams 1901-6-1 1845 Orange Mount Santiago, near summit Comment
  RSA696196  Agoseris retrorsa Keith E. Hoffmaster 1936-5-3 s.n. Orange Santa Ana Mts (Santiago Peak) Comment
  UCR242709  Agrostis Chris E. True 2013-5-2 s.n. Orange Bommer Canyon, NW of Aliso Viejo 137 Comment
  RSA17144  Agrostis pallens C. B. Wolf 1936-6-17 7945 Orange Santa Ana Mountains, along Ortega Highway 5.6 miles above San Juan Capistrano. 76 Comment
  RSA788920  Agrostis pallens Fred M. Roberts 1999-6-10 5242 Orange Lomas de Santiago: Loma Ridge, Central Limestone Cyn., adjacent to the Sinks, 0.7 km E Bolero Spring and 1.9 km NW Bolero Lookout. 411 Comment
  UCR56092  Agrostis viridis Jeri Hirshberg 1988-6-7 s.n. Orange Santa Ana Mtns., Santa Ana Mtns. 274 Comment
  CAS-BOT-BC64519  Ailanthus altissima E. R. Johnson 1932-5-1 3704 Orange Rancho Santa Ana, Santa Ana Canyon. Aliso Canyon. 182 Comment
  CAS-BOT-BC135854  Allium haematochiton P. C. Everett; E. R. Johnson 1935-5-29 7093 Orange Santa Ana Mts., head of Claymine Canyon 731 Comment
  RSA0013973  Allium haematochiton Fred M. Roberts, David E. Bramlet 2008-5-13 6952 Orange Upper Weir Cyn., central fork, 3.5 km NE Roberst Peak 369 Comment
  RSA366464  Allium haematochiton M. B. Dunkle 1933-3-5 3085 Orange San Juan Canyon. Comment
  RSA443849  Allium haematochiton Karlin G. Marsh 1984-2-14 s.n. Orange Casper s Regional Park: just south of Lower Lucas Canyon, ca. 135 m. 135 Comment
  CAS-BOT-BC135855  Allium haematochiton D. E. Breedlove 1962-3-9 1788 Orange 12.3 miles east of San Juan Capistrano on State 74. 243 Comment
  IRVC26677  Allium haematochiton Mark A. Elvin 2004-4-4 3213 Orange UCI Arboretum Southern Coastal 15 Comment
  POM19174  Allium monticola Philip A. Munz, D. Keck 1923-6-14 7095 Orange Santiago Peak. Summit. 1640 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
  RSA264153  Allium praecox C. W. Tilforth 1977-3-6 1257 Orange Small canyon west of Gypsum Canyon, south side of Santa Ana River, Santa Ana Canyon 152 Comment
  SBBG863  Allium praecox H. and M. Dearing 1937-4-12 3100 Orange Santa Ana Cyn Comment
  RSA759244  Allium praecox Robt. Allen, Nancy Barnhill 2008-3-30 s.n. Orange San Joaquin Hills, Laguna Coast Wilderness Park, along Mary's Trail, a short distance uphill from the Nix Nature Center 134 Comment
  RSA410098  Allophyllum glutinosum N. C. Cooper 1949-5-1 3947 Orange San Juan Canyon. 610 Comment
  RSA67223  Allophyllum glutinosum Verne Grant, Alva Grant 1949-4-23 8659 Orange West entrance of Cleveland National Forest on Hywy 74. Comment
  CAS-BOT-BC170689  Alnus rhombifolia C. B. Wolf 1931-3-6 1855 Orange Trabuco Camp grounds, Trabuco Canyon, W slope of the Santa Ana Mts. 609 Comment
  POM201929  Amaranthus albus L. M. Booth 1932-5-12 s.n. Orange Newport Bay. Comment
  SD245232  Amaranthus albus R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49593 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74). Margins of San Juan Creek. Comment
  UCD97187  Amaranthus albus Ira L. Wiggins 1966-5-4 20658 Orange Along railroad embankment of A.T. and S.F.R.R., on southwest side of Orangethorpe Avenue, near Esperanza siding. Comment
  HSC79612  Amaranthus blitoides James Henrickson 1972-10-21 8069 Orange Newport Beach, S of Jamboree Rd., E of Irvine Coast Country Club near U.C. Irvine. 46 Comment
  RSA696429  Amaranthus blitoides Keith E. Hoffmaster 1933-10-1 334 Orange Near Tustin Comment
  UCR44905  Amaranthus blitoides B. G. Pitzer, L. F. LaPre 1986-10-20 0314 Orange City of Irvine, Drainage channel near intersection of Irvine Blvd. and Sand Canyon Avenue. 91 Comment
  RSA542441  Amaranthus deflexus Fred M. Roberts 1988-10-21 4161 Orange Irvine: Michelson bridge at San Diego Creek. 4 Comment
  POM201875  Amaranthus powellii L. M. Booth 1932-7-21 s.n. Orange Anaheim Creek Comment
  RSA184132  Amaranthus powellii I. L. Wiggins 1965-10-24 20293 Orange Yorba Linda Blvd. 1/4 mi. E of State College Blvd., Fullerton. Comment
  RSA562747  Amaranthus retroflexus Steve Boyd 1992-5-19 7443 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of the wilderness in Lucas Canyon from crossing the creek by Lucas Canyon Trail, downstream to confluence with Aliso Canyon. 274 Comment
  IRVC8604  Amblyopappus pusillus J. B. Anderson 1966-4-16 577 Orange Newport Beach; Corona del Mar; Buck Gully; "Little Corona Beach"; moist canyon bottom with small brooklet near stream. Southern Coastal 0 Comment
  UCR158158  Amblyopappus pusillus Adrian Wolf 1998-5-27 336 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
  SEINET6738510 Image available Amblyopappus pusillus L. C. Wheeler 1932-6-25 859 Orange Newport Bay 1 Comment
  RSA184184  Ambrosia acanthicarpa I. L. Wiggins 1965-11-6 20351 Orange Near well #14, Kramer Oil Estates, near end of county road to Rancho Santa Ana. Comment
  RSA699676  Ambrosia acanthicarpa Keith E. Hoffmaster 1934-1 s.n. Orange Near Santa Ana. Comment
  POM202166  Ambrosia chamissonis L. M. Booth 1932-5-25 1110 Orange Balboa Island [Newport Bay]. Comment
  SD143592  Ambrosia chamissonis R. D. Goeden, D. W. Ricker 1970-2-19 Orange Newport Beach, northwest edge of town between Seashore Dr., Neptune Ave., 56th and 58th streets 2 Comment
  UCR109969  Ambrosia chamissonis R. D. Goeden, Don W. Ricker 1970-4-29 s.n. Orange South Coast, Newport Beach, NW edge of town between Seashore Dr., Neptune Ave., 56th and 58th Streets 2 Comment
  UCR42386  Ambrosia chamissonis A. C. Sanders 1986-5-31 6524 Orange Southern Coast, Balboa Island at Newport Beach. Dunes at the back edge of the beach, from 6th St. S to the harbor entrance 1 Comment
  RSA696743  Ambrosia confertiflora Kenneth Beard s.n. Orange Wasteland E. of Placentia. Comment
  IRVC29814  Ambrosia psilostachya Laura D. Lyons, Mark A. Elvin 2006-9-23 428 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
  POM122758  Ambrosia psilostachya Marcus E. Jones 1924-8-26 s.n. Orange Newport. Comment
  RSA703089  Ambrosia psilostachya Fred M. Roberts, Arthur Davenport 2003-9-11 6005 Orange Rancho Mission Viejo: Donna O' Neill Land Conservancy. Cristianitos Cyn., 0.79 km N Sycamore Gate 0.23 km w of Crisianitos Road. 126 Comment
  UC537039  Ambrosia psilostachya Lawrence M. Booth 1932-7-19 1277 Orange Bolsas Marsh Comment
  CAS-BOT-BC45062  Ambrosia psilostachya David D. Keck 1933-10-3 2539 Orange Sunset Beach 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
  POM12449  Ammannia robusta P. A. Munz 1922-9-2 6353 Orange Ponds in Laguna Canyon 46 Comment
  UC217856  Ammannia robusta P. A. Munz 1922-9-2 6353 Orange Laguna Canyon 45 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
  CAS-BOT-BC213966  Amsinckia Helen D. Geis 1902-1-1 510 Orange Santa Ana Comment
  HSC3516  Amsinckia intermedia C. L. Hitchcock, C. V. Muhlick 1964-3-17 23064 Orange 8 mi. E of Yorba Linda, Santa Ana Canyon. Comment
  UC1191048  Amsinckia intermedia Francia Chisaki 1957-4-3 925 Orange 3 mi s Irvine (Hwy 101) Comment
  RSA0089447  Amsinckia intermedia Ken Greby 1985-4-18 17 Orange Alongside Laguna Canyon Rd. approx. 1.5 km. NE from El Toro Rd. 46 Comment
  UCD119275  Amsinckia intermedia Francia Chisaki 1957-4-3 925 a Orange On Highway 101, ca. 3 miles S of Irvine. 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
  UCSB48101  Amsinckia intermedia Fritzke, Sue; Roberts, Jr., Fred 1982-4-3 Orange Rancho Mission Viejo: Calif. 74, 15.0 km by road NE San Juan Capistrano; 4.7 km SW San Juan Guard Station 160 Comment
  IRVC217  Amsinckia menziesii var. intermedia J. Schram 1965-4-18 Orange Corona del Mar, Corona Highland Gully [=Buck Gully?]. Newport Beach Comment
  IRVC201  Amsinckia menziesii var. intermedia S. Parks 1965-4-6 Orange Newport Back Bay. Newport Beach Comment
  IRVC205  Amsinckia menziesii var. intermedia McGuire 1965-4-3 Orange Corona del Mar High School Newport Beach Comment
  IRVC213  Amsinckia menziesii var. intermedia D. Frees 1965-3-27 Orange Newport Beach; East Bluffs. Southern Coastal Comment
  IRVC9355  Amsinckia menziesii var. intermedia B. T. Gittins 1963-4-21 179-A Orange Newport Back Bay. Newport Beach Comment
  UCR192464  Anagallis arvensis A. C. Sanders, Fred M. Roberts 2008-3-25 34532 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  UCR4089  Anagallis arvensis Carole Sims 1965-3-28 s.n. Orange South Coastal Plains, Salt Creek Road off Pacific Coast Highway, between South Laguna and Dana Point 18 Comment
  RSA465135  Anagallis arvensis M. B. Dunkle 1933-4-9 3273 Orange Dana Point. Comment
  RSA5909  Anemopsis californica C. B. Wolf 1932-7-2 3818 Orange Carbon Canyon, 1/8 mile below La Vida Springs [La Vida Mineral Springs]. 21 Comment
  IRVC26961  Anemopsis californica Peter A. Bowler 2003-4-20 s.n. Orange UC San Joaquin Freshwater Marsh Reserve; in marsh at Nedge of marsh beside UCI Arboretum. Southern Coastal 3 Comment
  UC536891  Anthemis cotula Lawrence M. Booth 1932-5-15 1200 Orange Santa Ana River Santa Ana River Comment
Read comments
Aug 21 2007
  RSA542472  Anthemis cotula Fred M. Roberts 1988-4-14 3926 Orange IRVINE: south of the San Diego Freeway, 1.2 km. ENE French Hill. 41 Comment
  POM443834  Antirrhinum coulterianum Karlin G. Marsh 1978-6-6 s.n. Orange Santa Ana Mts: Holy Canyon Comment
  RSA725573  Antirrhinum multiflorum Fred M. Roberts, Robert L. Allen, Trish Smith 2007-6-15 6528 Orange dirt road along ridge between Black Star and Fremont Canyons, 4.4km ENE Irvine Lake spillway and 2.4km WSW Hidden Ranch. 662 Comment
  RSA0036640  Antirrhinum multiflorum Robt. Allen, Trish Smith, Mike Kahle 2007-8-11 s.n. Orange Peninsular Ranges; Santa Ana Mountains region: Fremont Canyon, ridge to the east, saddle between Fremont & Black Star Canyon watersheds. Northern terminus of unpaved Lakeview Road. Base of Southern California Edison Tower #33-1 M33T1A. 761 Comment
  RSA701675  Antirrhinum nuttallianum L. C. Hull 1939-9-8 s.n. Orange Laguna Hills 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
  POM4240  Antirrhinum nuttallianum subsp. nuttallianum I. M. Johnston 1918-5-4 1888 Orange Back of Laguna Beach, moist shaded hillside 61 Comment
  RSA725584  Antirrhinum nuttallianum subsp. nuttallianum Fred M. Roberts, Robert L. Allen, Trish Smith 2007-6-15 6529 Orange dirt road along ridge between Black Star and Fremont Canyons, 4.4km ENE Irvine Lake spillway and 2.4km WSW Hidden Ranch. 662 Comment
  UCR224161  Antirrhinum nuttallianum subsp. subsessile Fred M. Roberts 2008-3-19 6784 Orange South Coast, Dana Point Headlands, Center for Natural Lands Mgmt. Preserve, 0.8 km west of the Marine Institute, Dana Point Harbor 45 Comment
  RSA698988  Antirrhinum strictum Unspecified 1935-04 s.n. Orange Silverado Canyon. Comment
  RSA0119679  Apiastrum angustifolium Fred M. Roberts 2015-3-10 7926 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
  RSA357144  Apium graveolens R. F. Thorne 1975-4-6 45581 Orange Head of Newport Bay. Comment
  RSA5951  Apium graveolens C. B. Wolf 1932-7-7 3842 Orange Bryant Ranch ; On Bixby Ave. 2/10 mi. W of Hansen Road. (2/10 mi. W of SE corner of NE 1/4 of NE 1/4 of sec. 34 T4S R11W) 9 Comment
Read comments
Apr 9 2014
  UCR241665  Apocynum cannabinum Dick Newell, Judy Booth 2013-5-28 331 Orange Peninsular Range; Santa Ana Mtns., Agua Chinon Wash, 1.12 mi. due west of Bolero Point, Limestone Canyon Rd. 269 Comment
  RSA0054901  Arabis glabra Keith E. Hoffmaster 1934-4-22 178 Orange Santa Ana mts. [Orange or Riverside]. Comment
  RSA542587  Aralia californica Fred M. Roberts, R. E. Riefner 1988-7-19 4114 Orange Santa Ana Mountains; Maple Springs Truck Trail, Upper Silverado Canyon, 1.9km N Modjeska Peak. 1128 Comment
  RSA7635  Arbutus menziesii C. B. Wolf 1933-11-8 5534 Orange Trabuco Canyon on So. wall opposite the Trabuco Truck Trail. 915 Comment
  UC527329  Arbutus menziesii Carl B. Wolf 1933-11-8 Orange Trabuco Canyon on s wall opposite Trabuco Truck Trail; Santa Ana Mountains, Trabuco Canyon 914 Comment
  RSA629333  Arctostaphylos glandulosa Jon E. Keeley 1992-6-12 15517 Orange North of El Cariso on road to Los Pinos Pk, 3.8 km north of Hwy 74. 1000 Comment
  RSA658640  Arctostaphylos glandulosa R. W. Hufstader 1971-3-29 64 Orange Collected in Harding Canyon off Harding Cyn. Rd. ca. 5 miles from Tucker Sac. Cleveland Nat. Forest. 762 Comment
  POM254923  Arctostaphylos glandulosa subsp. glandulosa W. Pequegnat 1940-6-19 s.n. Orange Main Divide Road, between Pleasants and Bedford Peaks. Santa Ana Mts. Comment
  POM254950  Arctostaphylos glandulosa subsp. glandulosa W. Pequegnat 1940-6-13 s.n. Orange Bear Springs, Santa Ana Mts. Comment
  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
  RSA629329  Arctostaphylos glandulosa subsp. glandulosa Jon E. Keeley 1992-6-12 15515 Orange Road to Los Pinos Peak (3S04), 2 km northeast of Blue Jay Campground and 1 km above 5S05. North of Hwy. 74. 1100 Comment
  RSA629341  Arctostaphylos glandulosa subsp. glandulosa Jon E. Keeley 1982-5-23 7732 Orange Along road to Trabuco Mountain. Comment
  UC1120328  Arctostaphylos glandulosa subsp. zacaensis H. A. Jensen 1937-11-4 415 Orange head of Trabuco Canyon Cleveland National Forest, Elsinore Quadrangle Comment
  UC1137480  Arctostaphylos glandulosa subsp. zacaensis J. B. Spring 1931-3-18 26 Orange Black Star Canyon Corona Quadrangle (Plot #17, Corona #2) Comment
  UC1302404  Arctostaphylos glandulosa subsp. zacaensis Robert F. Thorne and John Olmstead 1963-7-26 32838 Orange in Tin Mine Canyon above Beek's Spring; Cleveland National Forest, Santa Ana Mts., Trabugo District 609 Comment
Read comments
Apr 25 2011
  RSA80657  Arctostaphylos glauca var. glauca P. A. Munz, E. K. Balls 1952-8-19 17923 Orange summit Ortega Hwy, Santa Ana Mts. Comment
Read comments
Nov 1 2013
  RSA607257  Arctotis venusta L. C. Wheeler 1933-10-21 2224 Orange Newport Bay. 3 Comment
  CAS-BOT-BC401733  Argemone munita subsp. robusta Carl B. Wolf 1937-12-3 9382 Orange Santa Ana Mts., main divide motorway, between Santiago Peak and Modjeska Peak 1645 Comment
  RSA703846  Aristida purpurea var. parishii D. E. Bramlet, Fred M. Roberts 2003-3-13 3336 Orange Donna O'Neill Reserve. North east ridge line 762m W of Cristianitos Rd., and 1.15 km N of the E-W Access road., 11S 04 46 955E, 37 05 838N) 198 Comment
  UCR138437  Aristida purpurea var. parishii R. E. Riefner Jr. 2000-7-9 20 635 Orange Santa Ana Mtns., Cleveland National Forest, upper drainage of Fremont Canyon along the southern National Forest Boundary; above the powerline 610 Comment
  RSA588885  Aristida purpurea var. purpurea Fred M. Roberts, D. Bontrager 1990-6-5 4669 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
  RSA776  Artemisia biennis J. T. Howell 1927-10-29 784 Orange Bryant Ranch near Long Beach. 15 Comment
  UC536946  Artemisia californica Lawrence M. Booth 1932-7-27 1327 Orange Newport Bay Comment
  UCR186679  Artemisia californica T. B. Salvato, Katie Kurtz 2006-10-15 1912 Orange South Coast, Irvine, San Diego Creek flood control channel, near Michelson Drive and Harvard Avenue 6 Comment
  RSA0062670  Artemisia californica Norman Willis 1948-2-8 s.n. Orange In foothills about 8 miles east of Orange. 304 Comment
  RSA751431  Artemisia douglasiana A. C. Sanders, Fred M. Roberts 2008-7-3 35689 Orange Weir Canyon, along Windy Ridge Rd. at hairpin turn/road junction below huge sandstone boulder (visible on Google Earth), 1.2 mi. SE of Walnut Canyon Reservoir. 275 Comment
  RSA478870  Arthrocnemum subterminale F. R. Fosberg 1930-7-10 S 3187 Orange Anaheim Landing. [Los Angeles Co. on label] Comment
  RSA703364  Arthrocnemum subterminale R. E. Riefner Jr. 2004-5-6 4 -172 Orange Newport Beach, north side of Pacific Coast Hwy., west of Bayside Drive near Newport Dunes Beach Club. 10 Comment
  RSA695984  Asclepias californica Keith E. Hoffmaster 1936-5-3 s.n. Orange Holy Jim Canyon. Comment
  RSA0104738  Asclepias eriocarpa A. C. Sanders, Fred M. Roberts 2008-7-3 35672 Orange Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor. 365 Comment
  RSA0104747  Asclepias eriocarpa A. C. Sanders, Fred M. Roberts 2008-6-17 35519 Orange Middle section of Weir Canyon, SSE of Walnut Canyon Reservoir. 225 Comment
  UCR46568  Asclepias fascicularis B. G. Pitzer, D. C. Hawks 1986-10-21 0353 C Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, c. 10 mi east of Santa Ana, in hills N and east of South Coast Gun Club on Jeffrey Road in Hicks Canyon 183 Comment
  UCR141345  Asparagus asparagoides Robert DeRuff 1994-2-24 436 Orange Southern Coast, Newport Beach, Newport Back Bay, below Eastbluff North 9 Comment
  CDA37131  Asphodelus fistulosus Allen Lampman 2012-4-18 PDR# 1630651 Orange Laguna Niguel. 0 Comment
  RSA686328  Aspidotis californica Albert J. Perkins 1913-3-6 s.n. Orange San Juan Hot Springs Comment
  RSA739319  Aspidotis californica Keith E. Hoffmaster 1933-3-2 30 Orange Orange County: Santa Ana Mts Comment
  SEINET3153585  Aspidotis californica W. B. Crockatt 1908-6-1 sn Orange Capistrano Valley Comment
  POM146199  Aster bernardinus F. M. Reed 1927-11-9 5634 Orange Margin of Hwy, 1 mile S of Tustin. Comment
  POM201791  Aster hesperius L. M. Booth s.n. Orange Newport Beach 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
  IRVC25156  Aster subulatus var. ligulatus Fred M. Roberts 1986-9-3 3129 Orange adjacent to Anaheim, between Yorba Linda Regional Park and Imperial Hwy, Santa Ana River 88 Comment
  CHSC100664  Astragalus brauntonii Elizabeth Landis; Velentin Arvizu, Cliff McLean, Kadest Ketsella 1970-8-25 Orange Peninsular Ranges; Santa Ana Mountains region: Specimen located against wooden cofferdam in wet sand in CalTrans debris basin on S side of 91 Freeway in Coal Canyon. UTM Zone 11S; 3748048N 0436356E. 137 Comment
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Nov 22 2011
  SD254607  Astragalus didymocarpus D. E. Bramlet, J. E. Harrison 2008-4-3 4154 Orange Peninsular Range; Santa Ana Mountains; South Bee Canyon, Bowerman landfill site, 1.2 km south of the Bee Canyon access road and 122 m west of the active landfill. 224 Comment
  RSA749637  Astragalus didymocarpus var. didymocarpus D. E. Bramlet 2008-3-31 4135 Orange 282m East Upper Hicks Haul Rd, Trib. to Limestone Cyn. 1km S of Santiago Cyn Rd. 317 Comment
  RSA562825  Astragalus gambelianus Steve Boyd, T. S. Ross 1992-5-20 7458 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
  UCR191320  Astragalus gambelianus A. C. Sanders, Fred M. Roberts 2008-4-8 34748 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, head of Hicks Canyon, S of Santiago Reservoir 351 Comment
  RSA549994  Astragalus trichopodus Scott D. White 1992-9-23 859 Orange Vicinity of Olinda, near city of Brea, immediately N of Carbon Cyn Rd & E of Placentia Ave.; ca. 1 mi. (airline) SSE of Tonner Cyn. 183 Comment
  RSA554621  Astragalus trichopodus Scott D. White 1992-10-20 968 Orange Vicinity of city of Brea, Immediately N of Carbon Canyon Rd & E of Placentia Avenue +/-1mi (air) SSE of Tonner Canyon. 183 Comment
  RSA278304  Astragalus trichopodus var. lonchus C. W. Tilforth 1979-5-23 1808 Orange Mouth of Aliso Canyon, south Laguna. Comment
  RSA2991  Astragalus trichopodus var. lonchus C. B. Wolf 1931-3-3 s.n Orange Botany garden. (RSA?) Comment
  UC1286978 Image available Astragalus trichopodus var. phoxus C. L. Hitchcock 1966-3-15 24141 Orange Stearns Lease, 1 1/2 miles e. of Brea Comment
  RSA725806  Atriplex T. B. Salvato, Mitch Provance, Katie Kurtz 2006-10-15 1906 Orange South Coast: Irvine, San Diego Creek flood control channel, between Campus Drive and Michelson Drive. 6 Comment
  UCR186685  Atriplex T. B. Salvato, Katie Kurtz, Mitch Provance 2006-10-15 1906 Orange South Coast, Irvine, San Diego Creek flood control channel, between Campus Drive and Michelson Drive 6 Comment
  UCR203891  Atriplex R. E. Riefner Jr. 2006-10-19 06- 546 Orange city of Lake Forest, c. 0.5 mi north of Alton Parkway on east side of SR-241 230 Comment
  SBBG121999  Atriplex amnicola R. E. Riefner 2005-9-16 05 -666 Orange E of Bayside Drive at confluence with Big Cyn, upper Newport Bay 6 Comment
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Dec 13 2012
  SBBG122000  Atriplex amnicola R. E. Riefner 2006-8-6 06 -381 Orange Big Cyn Crk drainage near Back Bay Drive, Newport Bay 8 Comment
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Dec 13 2012
  RSA452401  Atriplex californica Fay A. MacFadden 1931-3-1 2927 Orange Laguna Beach. Comment
  RSA737531  Atriplex californica Fred M. Roberts 2008-3-12 6731 Orange Dana Point: Dana Point Headlands CNLM Preserve, western side, c.a. 0.8 km W Marine Institute (Dana Point Harbor). 50 Comment
  POM201812  Atriplex canescens L. M. Booth 1932-7-23 1301 Orange Corona del Mar, Newport Beach Comment
  UCR66987  Atriplex canescens A. C. Sanders 1990-10-6 10193 Orange Newport Bay, North Star County Beach Area on the SW end of the Bay, c. 2 km inland of Hwy 1. 3 Comment
  UC150079  Atriplex coulteri LeRoy Abrams 1903-4-18 3270 Orange Trabuco Arroyo near Capistrano; Trabuco Arroyo near Capistrano Comment
  UCR202430  Atriplex glauca R. E. Riefner Jr. 2002-5-4 02- 91 Orange South Coast, Upper Newport Bay, Jamboree Road at Bayview Dr., edge of Newport Beach Q. 21 Comment
  RSA708449  Atriplex lentiformis Mark Elvin 2004-5-2 3423 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
  UCR154265  Atriplex lentiformis Mark A. Elvin 2004-5-2 3423 Orange Southern Coastal, Irvine: San Joaquin Freshwater Marsh, near Campus and University Drives; 1.7 km (air) NNW UC Irvine campus center 3 Comment
  POM278962  Atriplex lentiformis subsp. breweri Lyman Benson 1945-1-13 11587 Orange Laguna Beach. 15 Comment
  RSA33798  Atriplex leucophylla N. C. Cooper 1942-11-9 884 Orange Balboa Comment
  RSA478323  Atriplex leucophylla Gertrude Dunn 1931-8-9 s.n. Orange Between Huntington Beach and Santa Ana Comment
  POM641  Atriplex leucophylla D. L. Crawford 1925-07 s.n. Orange Beach Comment
  UCR282160  Atriplex lindleyi R. E. Riefner Jr. 2017-4-10 17- 162 Orange South Coast, city of San Clemente, San Clemente State Beach, southwest bluff area, west of Concordia Elementary School 29 Comment
  CAS-BOT-BC180907  Atriplex pacifica John Thomas Howell 1927-7-17 2788 Orange One mile north of Laguna Beach 30 Comment
  POM219183  Atriplex pacifica L. C. Wheeler 1932-6-25 855 Orange Newport Bay. 3 Comment
  POM631  Atriplex pacifica I. M. Johnston 1918-5-4 1931 Orange Laguna Beach. Comment
  IRVC21320  Atriplex rosea Fred M. Roberts 1982-7-31 789 Orange 0.3km NNW Clemente Survey Mark; 1.2km NNE Civiv Center, San Clemente 220 Comment
  RSA696212  Atriplex rosea Keith E. Hoffmaster 1934-5-31 s.n. Orange 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
  IRVC9295  Atriplex semibaccata B. T. Gittins 1966-6-24 1421 Orange Crescent Beach; coastal bluff. Laguna Beach 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
  RSA250  Atriplex serenana J. T. Howell 1927-7-5 265 Orange West side, Rancho Santa Ana [Botanic Garden]. 152 Comment
  POM201963  Atriplex serenana L. M. Booth 1932-7-25 1315 Orange Santa Ana River 2 miles from ocean. Comment
  CDA2962  Atriplex suberecta Tom Perring, Tracy Pinckard 1994-3-2 s.n. Orange South Coast; Tustin, Marine Helicopter Station at the corner of Moffett Drive and Jamboree Rd. 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
  UCR154266  Atriplex suberecta Mark A. Elvin 2004-5-2 3424 Orange Southern Coastal, Irvine: San Joaquin Freshwater Marsh, near Campus and University Drives; 1.7 km (air) NNW UC Irvine campus center 3 Comment
  RSA528044  Atriplex subspicata A. C. Sanders 1990-10-6 10189 Orange Newport Bay, North Star County Beach area on the SW end of the bay, ca. 2 km inland of Highway 1. 1 Comment
  RSA65348  Atriplex watsonii F. W. Peirson 1924-8-29 5089 Orange Mainland at bridge, Balboa Beach. Comment
  UCR14050  Atriplex watsonii Hyrum B. Johnson 1973-10-27 s.n. Orange Pacific Coast, Bolsa Chica State Beach 1 Comment
  UCD56106  Avena barbata A. A. Beetle 1942-4-19 3259 Orange Rt. 101. 5 miles south of Laguna Beach. Comment
  RSA385407  Avena fatua Anonymous 1914-8-22 s.n. Orange Near Harper. [1909-1920, then became Costa Mesa] Comment
  SEINET3919709  Avena fatua Keith E. Hoffmaster 1936-4-14 708 Orange Santa Ana.; 0 Comment
  UCR102010  Avena fatua B. G. Pitzer 1997-3-25 3003 Orange San Joaquin Hills, Crystal Cove State Park, Pelican Point Area, grassland between Pacific Coast Hwy and the bike trail 30 Comment
  RSA696691  Avena sativa Keith E. Hoffmaster 1927-5-5 s.n. Orange Santa Ana. Comment
  RSA13  Azolla filiculoides John Thomas Howell 1927-7-6 284 Orange Santa Ana River bottom, Rancho Santa Ana 152 Comment
  POM17840  Baccharis douglasii Philip A. Munz 1923-9-6 7733 Orange Holy Jim Canyon, Santa Ana Mts 762 Comment
  RSA598135  Baccharis douglasii Brian Fink 1992-10-7 s.n. Orange Huntington Beach, Salt marsh invaded for several years by fresh water Comment
  POM201806  Baccharis emoryi L. M. Booth s.n. Orange Newport Beach Comment
  UCSB48035  Baccharis glutinosa Roberts, Fred 1981-9-26 Orange Huntington Beach; Calif. Rte. 1, near mouth of Santa Ana River, 0.1 km. N jct. Brookhurst Ave.; 0.1 km. SW Bench Mark 7 2 Comment
  SD135168  Baccharis glutinosa Brian Fink 1992-10-7 Orange Huntington Beach Comment
  UCR205873  Baccharis malibuensis R. E. Riefner Jr. 2008-7-2 08- 181 Orange Santa Ana Mountains, Irvine Ranch Reserve, Fremont Canyon Conservation Easement, east Fremont Canyon, power line access road off Lakeview SCE Road 660 Comment
  UCR186682  Baccharis pilularis T. B. Salvato, Katie Kurtz 2006-10-15 1915 Orange South Coast, Irvine, San Diego Creek flood control channel, near Michelson Drive and Harvard Avenue 6 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
  IRVC517  Baccharis pilularis subsp. consanguinea A. S. Boughey 163 Orange [San Juan Canyon], Ortega Hwy, 1mi E San Juan Guard Sta. Santa Ana Mountains Comment
  POM350366  Baccharis salicifolia N. C. Cooper 1949-3-18 3166 Orange Santa Ana Canyon 244 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
  UCR192116  Baccharis salicifolia A. C. Sanders, Fred M. Roberts, Amber O'Neal, D. E. Bramlet 2008-5-9 35295 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, c. 1.1 mi. E of Walnut Cyn Reservoir 277 Comment
  UCSB47980  Baccharis salicifolia Roberts, Fred 1980-2-17 Orange Along Camino Capistrano, 1.0 km. south of Avary Parkway, southern Mission Viejo 48 Comment
  JEPS21281  Baccharis salicifolia subsp. salicifolia J. Thomas Howell 1927-10-23 3171 Orange Rancho Santa Ana, Santa Ana River 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
  RSA0025299  Bahiopsis laciniata R. E. Riefner Jr. 2013-4-5 13 -56 Orange Anaheim Hills, vicinity of Hidden Canyon Rd. at Avenue de Santiago. 305 Comment
  CAS-BOT-BC16365  Barbarea orthoceras E. K. Balls 1955-4-4 20427 Orange 2.7 miles southwest from Orange-Riverside County line, along Highway 74, San Juan Capistrano to Elsinore. 304 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
  CLARK-A1528-966  Bassia hyssopifolia Patricia A. Andrews 1975-6-26 5909 Orange Capistrano Bay Beach 9 Comment
  POM259529  Bassia hyssopifolia A. C. Keller, F. F. Gander 1938-7-25 s.n. Orange Dike south of San Diego. Comment
  CAS-BOT-BC75517  Batis maritima Peter H. Raven 1957-9-28 11389 Orange At north limits of Surfside. Comment
  RSA439758  Batis maritima Anstruther Davidson 1907-9-1 1769 Orange Newport Comment
  UCR240098  Batis maritima Dick Newell 2012-9-29 298 Orange South Coast, Newport Beach, Back Bay Drive at Big Canyon parking area 2 Comment
  POM17841  Bebbia juncea Philip A. Munz 1923-9-7 7771 Orange Mouth of Trabuco Canyon 305 Comment
  RSA1358  Bebbia juncea B. D. Stark 1929-11-2 651 Orange Along railroad track, Rancho Santa Ana 152 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
  RSA734857  Bebbia juncea A. C. Sanders, Mitch Provance 2008-5-20 35404 Orange Lomas de Santiago area, Santiago Creek Canyon, c. 3/4 mile below Modjeska Canyon confluence 345 Comment
  SBBG45055  Bebbia juncea C. B. Wolf 1931-7-25 2295 Orange Santa Ana, Santa Ana Cyn 121 Comment
  IRVC24282  Bidens laevis Fred M. Roberts, G. A. Marsh 1985-10-26 2519 Orange Santa Ana River: adjacent to Huntington Beach; 0.7km SSW Adams Street bridge. southern coastal 4 Comment
  CLARK-A1528-3075  Bloomeria crocea Michelle Loef 1973-5-25 250573-4 Orange Brea 91 Comment
  UCR190981  Bloomeria crocea A. C. Sanders, Fred M. Roberts 2008-4-22 34997 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
  UCR192225  Bloomeria crocea A. C. Sanders, Fred M. Roberts 2008-5-6 35266 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, slope SE of road junction along ridge road, near head of Agua Chinon Canyon, 2.4 miles north of El Toro 470 Comment
  RSA698736  Bloomeria crocea Minor Warne 1934-04 s.n. Orange Panerama Heights Comment
  UCSB12763  Bloomeria crocea Whittington, M. 1962-4-20 Orange Santiago Road about 1 mile west of Irvine Lake 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
  RSA542343  Bloomeria crocea var. crocea Fred M. Roberts, Carol A. Williams 1988-4-12 3923 Orange Lomas de Santiago: Loma Ridge, 3.3 km NW Bolero Lookout. 475 Comment
  RSA548869  Bloomeria crocea var. crocea Bernard Jaroslow 1989-5-29 B 25 Orange Santiago Canyon: Along the Morrow Trail out of Live Oak Canyon, below truck trail. Comment
  RSA553114  Bloomeria crocea var. crocea Fred M. Roberts, Carol A. Roberts 1989-5-11 4346 Orange Santa Ana Mountains: Upper Blind canyon, east fork, along power line maintainance road, 3.9km SE Walnut Reservoir. 381 Comment
  SD254490  Bolboschoenus maritimus D. E. Bramlet 2009-11-20 4418 Orange South Coast: San Diego Creek between Irvine and Newport Back Bay. 3 Comment
  CAS-BOT-BC31016  Bolboschoenus maritimus Helen D. Geis 1902-11-1 s.n. Orange Santa Ana Peat Lands. Comment
  UCR146418  Bolboschoenus maritimus subsp. paludosus Sandra L. Leatherman 1998-9-3 48 Orange Coastal Plains & Basins; South Coastal Plain, Dana Point: Monarch Beach, northeast of the intersection of State Highway 1 and Crown Valley Parkway, and west of Salt Creek 30 Comment
  CAS-BOT-BC21117  Bolboschoenus robustus James R. Shevock 1972-9-27 2288 Orange South Coast Ranges. Upper Newport Bay, city of Newport Beach. 1 Comment
  CAS-BOT-BC145863  Bothriochloa barbinodis John Thomas Howell 1927-6-5 2437 Orange Southern Puente Hills, Santa Ana Canon [Canyon]. 152 Comment
  UCSB56502  Bothriochloa barbinodis Marsh, G.; Marsh, K. 1977-11-21 Orange Santa Ana Mtns, San Juan Hot Springs Comment
  UCR218460  Bougainvillea glabra Robert DeRuff 2008-1 348 Orange South Coast, Upper Newport Bay, between Mariner's Drive and 23rd St. 12 Comment
  CAS-BOT-BC95405  Bowlesia incana John Thomas Howell 1928-2-26 s.n. Orange Hills on N side of Santa Ana Canyon 152 Comment
  POM190177  Bowlesia incana Marcus E. Jones 1931-3-23 28128 Orange Laguna. Comment
  RSA60252  Bowlesia incana E. K. Balls 1950-3-7 14446 Orange Rancho Santa Aa Botanic Garden. Comment
  CDA22564  Brachypodium distachyon J. B. Anderson 1966-4-22 615 Orange San Joaquin Hills: Central Los Trancos Canyon. 0 Comment
  RSA702704  Brachypodium distachyon Scott D. White, Michael Honer 2004-5-17 10385 Orange City of Laguna Niguel. Ridges and open slopes directly north of the intersection of Crown Valley Parkway and Pacific Island Dr. 61 Comment
  UCR140793  Brachypodium distachyon Robin G. Marushia 2004-5-4 024 Orange Southern Coast, Crystal Cove State Park, interior of El Moro Canyon, east side of canyon, utility pole turnout above riparian area crossing 183 Comment
  IRVC14742  Brassica geniculata A. S. Boughey 1968-4-23 214 Orange Black Star Canyon, .5mi below Hidden Ranch; area burned this winter. Santa Ana Mountains Comment
  CDA22511  Brassica nigra D. Nguyen, C. Nguyen 2006-2-4 3 Orange Southern Coastal; San Joaquin Marsh; northwest edge of marsh. Comment
  CDA24706  Brassica nigra T. C. Fuller 1962-4-5 8143 Orange East of Highway 101, San Clemente. 0 Comment
  IRVC1050  Brassica nigra L. McCabe 1965-4-21 Orange Corona del Mar. Newport Beach Comment
  UCD114848  Brassica rapa Ira L. Wiggins 1965-11-3 20315 Orange Orange grove just east of California State College campus, Fullerton. Comment
  IRVC1017  Brassica rapa subsp. sylvestris J. Morgan 1965-2-21 Orange Corona del Mar, Bayside Dr. and Coast Hwy acrosss from Beacon Bay. Newport Beach Comment
  RSA0069232  Brassica tournefortii Fred M. Roberts, Megan Lulow 2009-3-18 7137 Orange Santa Ana Mtns. Region: Lomas de Santiago: Loma Ridge at Calochortus Ridge, near East Loma Ridge Road, 2.6 km NW Bee Peak, &3.4 km NE of Rattlesnake Reservoir Dam. 375 Comment
  IRVC22177  Brickellia nevinii Gordon A. Marsh, K. G. Marsh 1985-9-22 Orange Silverado Truck Trail, ridge north of Williams Canyon adjacent to White Canyon, 2.7km SE Silverdo Guard Station; Santa Ana Mountains 500 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
  UCR132985  Brickellia nevinii Adrian Wolf 2000-9-8 449 Orange Santa Ana Mtns., North Ranch Policy Plan Area, North Black Star Canyon, 2.1 km NNE of Black Star Coal Mine 503 Comment
  RSA696331  Bromus Keith E. Hoffmaster 1927-5-2 s.n. Orange Santa Ana Comment
  RSA703847  Bromus carinatus D. E. Bramlet, Fred M. Roberts 2003-3-27 3356 Orange Donna O'Neill Reserve. NE corner of the reserve 274m west of Cristianitos Rd. and 1.46km north of the E-W access road. (San Clemente: T8S R7W S12, NW of the SE; 11S -04 47 737E, 37 05 416N). 152 Comment
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Aug 30 2007
  SEINET3921870  Bromus carinatus Steve Boyd, Tim Ross 1992-5-19 7417 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of the wilderness along Lucas Canyon Trail from access road to Rancho Carrillo (7S06) north into Aliso Canyon.; 0 366 Comment
  RSA678715  Bromus carinatus var. carinatus Fred M. Roberts, Dave E. Bramlet 2002-6-6 5525 Orange Santa Ana Mtns: Main Divide Truck Trail, Upper Indian Cyn., 1.7km W Trabuco Pk., (33 42' 13 N, 117 29' 34 W) 1268 Comment
  CAS-BOT-BC156206  Bromus catharticus Ira L. Wiggins 1965-9-26 20264 Orange Along Orangethorpe Avenue near Atwood. Comment
  POM7087  Bromus diandrus P. A. Munz, L. T. Street, G. Williams 1919-5-3 2644 Orange Santa Ana River Canyon. Comment
  UC1131180  Bromus diandrus A. Lewis Apr 1934 393 Orange San Joaquin Hills 60 Comment
  UCR48031  Bromus diandrus Jack Easton 1987-4-21 s.n. Orange Southern Coast, Kain property, San Clemente, mouth of Trafalgar Canyon, just behind the beach 30 Comment
  UCSB48111  Bromus diandrus Roberts, Fred 1981-4-12 Orange Santa Ana Mtns; San Juan Canyon, Hwy 74, 1.3 km by road E of San Juan Guard Stn; 0.9 km SE Juan Rancho Survey Mark 295 Comment
  RSA0042731  Bromus diandrus David Barrios 1991-5-1 19 Orange 1500 ft. Northwest of Fairmont Ave and Quail cir., Yorba Linda. 365 Comment
  RSA650415  Bromus diandrus Bob Edwards s.n. Orange Found in open fields, 6 miles east Orange near Irvine Park. 106 Comment
  CAS-BOT-BC155491  Bromus hordeaceus Ira L. Wiggins 1966-4-22 20614 Orange Shoulder of pavement along Associated Road between Yorba Linda Boulevard and Imperial Highway. Comment
  RSA773560  Bromus hordeaceus Fred M. Roberts 1999-5-14 5216 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
  UC1131079  Bromus hordeaceus A. Lewis Apr 1934 387 Orange 1/2 mi e of Borrego Canyon 457 Comment
  RSA4803  Bromus hordeaceus James Snow s.n. Orange Bryant Ranch, near Long Beach. South West 1/4 Section 1, Township 5 S, Range 12 W, Station #1. Comment
  RSA0089221  Bromus madritensis subsp. rubens Fred M. Roberts 2014-4-21 7865 Orange South Coast: San Joaquin Hills: Upper Laguna Lake 1 (upper Laguna Lake), north basin. 113 Comment
  RSA0127416  Bromus madritensis subsp. rubens Fred M. Roberts 2016-3-17 8011 Orange San Joaquin Hills: City of Irvine, Bommer Canyon, east fork, 0.3 km ESE Cattle Camp near East Fork Trail. 152 Comment
  RSA697036  Bromus rigidus Keith E. Hoffmaster 1924-4-15 s.n. Orange Santa Ana 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
  RSA184124  Bromus rubens I. L. Wiggins 1966-3-16 20526 Orange Entrance to Firestone Boy Scout Reservation. Comment
  RSA184135  Bromus rubens I. L. Wiggins 1966-3-18 20531 Orange California State College at Fullerton. Comment
  RSA734639  Bromus sterilis A. C. Sanders, Fred M. Roberts, Amber O'Neal, David E. Bramlet 2008-5-9 35306 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, along old dirt road c. 1.25 mi. ESE of Walnut Cyn Reservoir. 340 Comment
  RSA735752  Bromus sterilis A. C. Sanders, Fred M. Roberts 2008-5-6 35235 Orange Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 280 Comment
  RSA708538  Bromus tectorum Fred M. Roberts, Robert L. Allen, Chris Barnhill, Nancy Hatfield 2005-5-30 6218 Orange northwest slope of Modjeska Peak, Harding Canyon watershed, Main Divide Road, 0.61km NNW summit Modjeska Peak. 1407 Comment
  IRVC26750  Bulbine Mark A. Elvin, J. Liou, J. Carpenter, J. Nguyen 2004-3-8 3176 Orange UCI Arboretum Southern Coastal 15 Comment
  UC124604  Cakile edentula A. Davidson, M. D. 1908-5-2 1789 Orange s Newport Bay Newport Bay Comment
  RSA657669  Cakile maritima Michael J. Graeser 1988-5-17 44 Orange Huntington Beach. Bolsa Chica Ecological Reserve. Lower end of Outer Bolsa Bay. 100 ft. SE of parking lot at Warner and PCH. Comment
  SBBG133611  Calandrinia breweri R. E. Riefner Jr. 2008-3-12 08 -34 Orange Irvine Ranch Reserve, N Irvine Ranch, E Fork of upper Fremont Cyn along Black Star SCE RD 715 Comment
  RSA737846  Calandrinia breweri R. E. Riefner 2008-4-15 08 -72 Orange Irvine Ranch Reserve, North Irvine Ranch, western middle Freemont Canyon area, Coalmine SCE Rd. 353 Comment
  IRVC29098  Calandrinia ciliata Fred M. Roberts 1989-3-17 4213 Orange Aliso Canyon, 3.3km SSE Moulton Pk. Aliso-Wood Canyon Regional Park 30 Comment
  RSA732079  Calandrinia ciliata A. C. Sanders, Fred M. Roberts 2008-3-25 34548 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  RSA749635  Calandrinia ciliata D. E. Bramlet 2008-4-28 4245 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
  CAS-BOT-BC438320  Calandrinia ciliata Ira L. Wiggins 1966-3-5 20508 Orange Along Highway S-18, about 4.5 mi. E. of Laguna Beach. Comment
  RSA752034  Calandrinia maritima Fred M. Roberts 2008-4-2 6843 Orange Dana Point: Dana Point Headlands, CNLM Preserve south of NE Gate along bluff, 0.6 km W Marine Institute (Dana Point Harbor). 28 Comment
  POM97377  Calandrinia maritima P. A. Munz 1926-4-15 10824 Orange Laguna Beach. Comment
  RSA697067  Calendula officinalis Kenneth Beard 1934-02 s.n. Orange Garden, Santa Ana Comment
  SD237519  Callistemon citrinus Mark A. Elvin 2003-2-23 2309 Orange South Coast: Irvine, San Joaquin Marsh along the berm of San Diego Creek. 3 Comment
  CDA5112  Callistemon viminalis R. E. Riefner Jr. 2007-4-1 07 -163 Orange City of Laguna Niguel, Oso Creek, ca 1.5 miles north from Paseo De Colinas Street on Camino Capistrano Street. Comment
  CDA5114  Callistemon viminalis R. E. Riefner Jr. 2007-3-18 07 -139 Orange City of Newport Beach, north shore of Newport Bay, North Star Beach, general vicinity of North Star Lane and Polaris Drive. Comment
  RSA594817  Calochortus albus Fred M. Roberts, Sandy Leatherman, Brian Leatherman 1994-4-24 4911 Orange Santa Ana Mountains: San Juan Canyon, CA route 74, Lower San Juan Picnic Ground. 354 Comment
  RSA0015003  Calochortus catalinae Fred M. Roberts 2008-5-14 6970 Orange Lomas de Santiago: Loma Ridge, 0.1 km W Bee Peak summit and 3.9 km E Rattlesnake Canyon Reservoir dam. Irvine Ranch Conservancy. 515 Comment
  RSA21235  Calochortus catalinae S. B. Bryant 1937-4-10 8506 Orange Rancho Santa Ana, Santa Ana Canyon, along road & roundtop to Horseshoe Bend. 244 Comment
  UCR192502  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
  RSA679228  Calochortus splendens Fred M. Roberts 2003-6-25 5942 Orange Santiago peak, north slopes along ridge east of Main Divide truck trail, 0.6km NNW summit. 1605 Comment
  CAS-BOT-BC132659  Calochortus weedii var. intermedius H. F. Copeland 1938-6-29 1574 Orange Hills back of Laguna Beach Comment
  RSA588986  Calochortus weedii var. intermedius D. E. Bramlet 1994-6-23 2390 Orange San Joaquin Hills. On ridgetop above Upper Shady Canyon. The site is located 640 m N of the Shady-Camarillo Cyn. Road junction and 1.5 km West of Laguna Cyn. Road. 232 Comment
  RSA649683  Calochortus weedii var. intermedius R. E. Riefner 2000-6-26 20 -580 Orange NCCP North Ranch Policy Plan Area. Along dirt road running N and W of Black Star Canyon Road at powerline tower. Comment
  RSA690972  Calochortus weedii var. intermedius Scott D. White, Michael Honer 2003-5-29 9425 Orange Santa Ana Mtn foothills: Rancho Mission Viejo. Hills above Canada Gobernadora, west side of canyon, ca. 1 air mile north of Ortega hwy. 91 Comment
  RSA690975  Calochortus weedii var. intermedius Scott D. White, Michael Honer 2003-5-29 9428 Orange Santa Ana Mtn foothills: Rancho Mission Viejo. Hills above Canada Gobernadora, west side of canyon, ca. 1 air mile north of Ortega hwy. 91 Comment
  RSA749648  Calochortus weedii var. intermedius D. E. Bramlet 2008-6-3 4288 Orange Upper Borrego Cyn, 215 SE of the access road and 1.35km west of Santiago Cyn Rd 435 Comment
  RSA749792  Calochortus weedii var. intermedius D. E. Bramlet 2008-6-3 4287 Orange Upper Borrego Cyn, 136m SE of the access road and 1.5km west of Santiago Cyn Road 433 Comment
  UCR112937  Calochortus weedii var. intermedius R. E. Riefner Jr. 2000-6-26 20- 580 Orange Peninsular Range, Santa Ana Mountains: North Ranch Policy Plan Area, along dirt road running N and west of Black Star Cyn. Road at powerline tower 631 Comment
  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
  UCR219854  Calochortus weedii var. intermedius Fred M. Roberts 2008-6-3 7025 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, East Fork Rattlesnake Canyon, c. 2.3 km ENE Rattlesnake Reservoir spillway and 2.2 km ENE Bee Peak 217 Comment
  RSA690976  Calochortus weedii var. weedii Scott D. White, Michael Honer 2003-5-29 9426 Orange Santa Ana Mtn foothills: Rancho Mission Viejo. Hills above Canada Gobernadora, west side of canyon, ca. 1 air mile north of Ortega hwy. 91 Comment
  RSA696923  Calycadenia tenella Minor Warne 1934-4-21 s.n. Orange Limestone Canyon. Comment
  RSA733692  Calycadenia tenella Keith E. Hoffmaster 1934-5-1 359 Orange San Onofre Comment
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Nov 19 2013
  RSA750000  Calycadenia tenella A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35323 Orange Weir Canyon, 0.3 mi. west of Eastern Transportation Corridor (Hwy 241) and 1.45 mi. east of south end of Walnut Canyon Reservoir. 335 Comment
  CSUSB679  Calystegia macrostegia Cesareo Perez 1971-5-4 Orange South Mesa Drive and Lemon Street in Villa Park Comment
  UCR106281  Calystegia macrostegia B. G. Pitzer, M. Georgiady 1997-4-5 3079 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
  UCR16115  Calystegia macrostegia S. Riddell 1973-5-17 730517- 22 Orange Hwy S-18, 10 mi east of Interstate Hwy 5 91 Comment
  SEINET12343666  Calystegia macrostegia J. F. Bright, Wyman, C. 1933-3-5 8014 Orange Santa Anna foothills Comment
  RSA602625  Calystegia macrostegia subsp. arida J. Mallory, V. McCoy 1995-7-3 6454110 Orange Santa Ana Mountains: Blind Canyon, ca. 0.5 mi. E of confluence with Santiago Canyon, on a W-facing slope. N of Irvine Lake. 300 Comment
  POM201721  Calystegia macrostegia subsp. cyclostegia L. M. Booth 1932-5-19 1081 Orange Newport Bay Comment
  UCR4053  Calystegia macrostegia subsp. cyclostegia Carole Sims 1965-3-28 s.n. Orange South Coastal Plains, 100 yards from Pacific Coast Highway on Salt Creek Road toward the beach. Between South Laguna and Dana Point 18 Comment
  RSA662615  Calystegia macrostegia subsp. intermedia J. Berkley 1994-5-3 10 Orange Carbon Canyon Regional park, west slope off the bike trail coming from Rose Drive, in front of dam. Comment
  LA50071  Calystegia macrostegia subsp. tenuifolia W. Pequegnat; 1937-8-31 99 Orange Santa Ana Mts 761 Comment
  RSA708723  Calystegia occidentalis subsp. fulcrata Fred M. Roberts, Robert L. Allen, Chris Barnhill, Nancy Hatfield 2005-5-30 6225 Orange west slope of Modjeska Peak, Harding Canyon watershed, Main Divide Road, 0.46km W summit. 1670 Comment
  JEPS47844  Calystegia sepium subsp. binghamiae Frank W. Peirson 1926-9-26 7086 Orange Wintersberg. Comment
  JEPS47828  Calystegia soldanella L. M. Booth 1932-5-25 1111 Orange Balboa Island , Balboa Island (Newport Bay) Comment
  IRVC1057  Camelina microcarpa D. Van Gorden 1965-4-15 Orange 27th St. Newport Beach Comment
  RSA0039800  Camissonia bistorta Fred M. Roberts, D. E. Bramlet 2003-4-10 5647 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
  RSA49672  Camissonia bistorta L. R. Abrams 1901-6-15 1793 Orange Santiago Peak trail. Comment
  RSA504  Camissonia bistorta J. T. Howell 1928-4-7 898 Orange Bee Canyon, Rancho Santa Ana 152 Comment
  RSA25949  Camissonia californica E. Johnson 1941-5-1 s.n. Orange River bottom, Rancho Santa Ana Comment
  SEINET8043936 Image available Camissonia californica Dick Newell, Don Millar 2015-1 403 Orange Peninsular Range; Santa Ana Mtsn. Foothills: Agua Chinon Wash, 1 mile NE of Portola and the 241 Toll Rd./Foothill Transp. Corridor. 245 Comment
  CSUSB191  Camissonia cheiranthifolia subsp. suffruticosa Steve Kulju 1974-5-27 Orange Seal Beach; One mile southeast of the city of Seal Beach on State Highway 1. 4 Comment
  RSA678741  Camissonia cheiranthifolia subsp. suffruticosa Valerie L. Soza, K. Clark, LeRoy Gross, Will Miller, Fred M. Roberts, Gary D. Wallace 2001-4-4 1111 Orange Anaheim Bay: Seal Beach U. S. Naval Weapons Station, southwestern edge of Seal Beach National Wildlife Refuge. 3 Comment
  RSA698259  Camissonia cheiranthifolia subsp. suffruticosa Unspecified 1927-3-16 s.n. Orange Newport Bluff. 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
  UCR191226  Camissonia hirtella A. C. Sanders 2008-4-29 35123 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, western end of Loma Ridge on road to sheriff's training facility, c. 1.5 mi. SW of Santiago Reservoir 335 Comment
  UC1618042  Camissoniopsis bistorta Donald G. Nelson 1935-3-23 179 Orange Hills north of Fullerton Comment
  CAS-BOT-BC160447  Camissoniopsis cheiranthifolia subsp. suffruticosa L. R. Abrams 1917-6-23 6576 Orange Balboa Comment
  IRVC29088  Capsella bursa-pastoris Fred M. Roberts 1989-3-17 4203 Orange Aliso Canyon, 3.3km SSE Moulton Pk. Aliso-Wood Canyon Regional Park 30 Comment
  CAS-BOT-BC37126  Capsella bursa-pastoris Ira L. Wiggins 1966-2-16 20445 Orange Orange grove on north side of Yorba Linda Boulevard, near corner of Associated Road, Fullerton. Comment
  RSA0054945  Capsella bursa-pastoris Keith E. Hoffmaster 1927-2-12 395 Orange Santa Ana. Comment
  CAS-BOT-BC37593  Cardamine californica C. B. Wolf 1931-1-30 1826 Orange Santa Ana Mountains. Claymine Canyon. 304 Comment
  UCSB48073  Cardamine californica Roberts, Fred 1981-4-11 Orange Santa Ana Mtns.; San Juan Canyon, Hwy. 74, 2.3 km. ENE San Juan Guard Station; 0.4 km. W of Bench Mark 1100 315 Comment
  UC484256  Cardamine californica var. californica C. B. Wolf 1931-3-6 1851 Orange w slope Santa Ana Mts. (Trabuco Camp Grounds, Trabuco Canyon); w slope Santa Ana Mts, Trabuco Canyon, Trabuco Camp Grounds 609 Comment
  POM187376  Cardaria chalepensis Ed Johnson s.n. Orange Westminster. Comment
  IRVC9185  Cardaria draba B. Gittins 1963-4-21 178-B Orange vacant lot west of Bristol, near Randolph Street. Costa Mesa Comment
  UC537121  Cardaria draba Lawrence M. Booth 1932-5-15 1197 Orange e of Huntington Beach Comment
  POM187375  Cardaria draba E. R. Johnson 1928-02 s.n. Orange Talbert, Orange County Comment
  POM187377  Cardaria pubescens Ed Johnson s.n. Orange Westminster. 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
  UCR191008  Carduus pycnocephalus A. C. Sanders, Fred M. Roberts 2008-4-22 35019 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Limestone Canyon, c. 2 miles SW of Silverado 396 Comment
  CAS-BOT-BC17635  Carex alma Helen D. Geis 1902-1-1 503 Orange Near Santa Ana. Comment
  UCR193807  Carex pellita A. C. Sanders, Fred M. Roberts 2008-7-16 35860 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hangmans Tree Canyon 379 Comment
  CAS-BOT-BC118481  Carex praegracilis L. M. Booth 1932-6-1 1207 Orange Newport Bay. Comment
  CAS-BOT-BC118482  Carex praegracilis Helen D. Geis 1902-1-1 505 Orange Unspecified Comment
  CAS-BOT-BC118485  Carex praegracilis Helen D. Geis 1902-4-1 567 Orange Unspecified Comment
  CAS-BOT-BC118491  Carex praegracilis Helen D. Geis 1902-4-1 s.n. Orange Unspecified Comment
  UCR242118  Carex praegracilis D. E. Bramlet 1983-5-14 1377 Orange Peninsular Range, Santa Ana Mountains, Chiquito Basin 884 Comment
  CAS-BOT-BC118492  Carex praegracilis Helen D. Geis 1902-4-1 s.n. Orange Santa Ana, Peat lands 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
  UCR261689  Carex spissa Dick Newell, Judy Booth, Jutta Burger, Bob Huttar 2014-6-29 382 Orange Peninsular Range; Santa Ana Mtns., Silverado Canyon, along Silverado Creek, 0.15 mi. due north of Silverado Canyon Rd. and 0.75 mi. upstream from Blackstar Rd. 328 Comment
  POM771  Carpobrotus chilensis D. L. Crawford 1916-8-1 s.n. Orange Aliso Point Comment
  RSA743459  Carpobrotus edulis Fred M. Roberts 2008-7-10 7067 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
  UCR191780  Castilleja affinis A. C. Sanders, Fred M. Roberts 2008-3-25 34572 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
  UCR228782  Castilleja affinis Dick Newell, Don Millar 2011-5-3 143 Orange Coastal Plains, San Joaquin Hills, Laguna Canyon Wilderness Park, Willow Trail 160 Comment
  RSA160549  Castilleja affinis J. D. Olmsted 1959-4-30 513 Orange North of Hidden Ranch in Black Star Can. ; 100 yards NW of Rattlesnake Rock; 5 mi. east of Irvine Lake. 716 Comment
  RSA789602  Castilleja affinis subsp. affinis Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49649 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak] Comment
  UC1012124  Castilleja affinis subsp. affinis F. W. Pennell and Carl Epling 1940-4-21 25149 Orange 5 mi e San Luis Capistrano (Route 74) 60 Comment
  UCD170069  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]. 227 Comment
  CDA41345  Castilleja affinis subsp. affinis Ahlefeld & Pope 1957-4-1 s.n. Orange Irvine Ranch. 0 Comment
  RSA658309  Castilleja angustifolia Steve Teh, Marie Gabbard 1994-4-28 18 Orange Modjeska Grade Rd. 1/2 mile back on fire rd. Comment
  UCD122440  Castilleja exserta C. L. Hitchcock 1966-3-15 24134 Orange 1/2 mile e. of Brea. Comment
  UC1607987  Castilleja exserta subsp. exserta Donald G. Nelson 1935-3-23 185 Orange hills n Fullerton Comment
  UCR241667  Castilleja foliolosa Dick Newell, Judy Booth 2013-6-2 333 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, Maple Springs Rd., 2.24 miles NE of Flores Peak 645 Comment
  UCSB56517  Castilleja foliolosa Anderson, J. 1966-3-7 Orange San Joaquin Hills; near bottom or Moro Canyon 91 Comment
  RSA512755  Castilleja minor subsp. spiralis Walter Wisura, Bart O'Brien, Durant 1990-6-12 4448 Orange Along forest rd. 3SO4 fr. 2.15 miles Ortega Hwy. to Santiago Peak. Comment
  RSA734200  Castilleja minor subsp. spiralis Keith E. Hoffmaster 1934-7-15 117 Orange Santa Ana Mts (Modjeska) 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
  RSA650182  Caulanthus heterophyllus D. E. Bramlet 2000-4-7 2959 Orange Blind Canyon west of the Eastern Transportation Corrido. The site is 213m southeast of the SCE access road adn 579m north of knoll 1261. 335 Comment
  RSA749288  Caulanthus heterophyllus Fred M. Roberts 1999-4-2 5166 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
  UCR266296  Caulanthus heterophyllus D. E. Bramlet 2008-4-3 4153 Orange Peninsular Range; Santa Ana Mountains, South Bee Canyon, Bowerman landfill site, 1.2 km south of the Bee Canyon access road, and 122 m west of the active landfill 224 Comment
  IRVC24790  Caulanthus lasiophyllus Karlin G. Marsh 1989-3-4 Orange Lomas Ridge, ridge between Hicks and Rattlesnake Canyons. Lomas de Santiago 210 Comment
  RSA0119683  Caulanthus lasiophyllus Fred M. Roberts 2015-3-10 7922 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
  RSA1443  Ceanothus crassifolius J. T. Howell 1929-1-24 1219 Orange near crest of Santa Ana Mts. south of Sierra Peak. 762 Comment
  RSA304748  Ceanothus crassifolius James R. Shevock 1971-2-6 1178 Orange Mojeska Cyn 396 Comment
  RSA542417  Ceanothus crassifolius Fred M. Roberts 1988-3-15 3854 Orange Rancho Mission Viejo: Verdugo Canyon, 0.8 km SE Lucas Survey Mark. 247 Comment
  RSA562822  Ceanothus crassifolius Steve Boyd, Tim S. Ross 1992-5-20 7475 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-BC50806  Ceanothus integerrimus P. C. Everett 1935-6-18 7214 Orange Santa Ana Mts., summit of Santiago Pk. 1731 Comment
  RSA798542  Ceanothus integerrimus Robert F. Thorne, E. W. Lathrop 1977-5-18 49742 Orange Santa Ana Mountains: summit of Santiago Peak. 1733 Comment
  UC1070733  Ceanothus integerrimus A. Lewis 1934-5-1 420 Orange Trabuco Elsinore quad., Cleveland National Forest 1341 Comment
  UC718385  Ceanothus integerrimus P. C. Everett 1935-6-18 7214 Orange Summit of Santiago Pk. Santa Ana Mts. 1731 Comment
  RSA16472  Ceanothus integerrimus var. californicus Percy C. Everett 1935-6-19 7236 Orange Trabuco Canyon, 1mile below W summit of truck trail. 1006 Comment
  RSA698619  Ceanothus megacarpus Dorothy Sammis s.n. Orange Trabuco Canyon. Comment
  SD130284  Ceanothus megacarpus B. Pitzer 1987-4-24 505 Orange 0.5 mile N of State Hwy 91, off Gypsum Canyon Rd., river at N side of stable. 120 Comment
  UCR222392  Ceanothus megacarpus Mark A. Elvin, Laura Soloro, Adam Sriro 2003-1-10 2221 Orange Peninsular Range; Santa Ana Mtns., c. 1.6 mi. west of Sierra Peak along road to powerlines, near Claymont Clay Mine 457 Comment
  RSA13145  Ceanothus oliganthus Percy C. Everett 1935-6-18 7202 Orange Main Divide Motorway 1.7 mi. N. of Los Pinos Potrero. 1128 Comment
  CAS-BOT-BC63561  Ceanothus oliganthus var. orcuttii Carl B. Wolf 1941-8-15 11158 Orange Santa Ana Mts. along main divide motorway just no. of head of Trabuco truck trail. 1219 Comment
  SD42370  Ceanothus oliganthus var. orcuttii P. C. Everett 1935-6-19 7234 Orange Santa Ana Mts., Main divide motorway junction with Tabuco Canyon Truck trail. 1219 Comment
  LA44933  Ceanothus palmeri W. E. Pequegnat; 1937-9-6 sn Orange Santa Ana Mountains, Ortega Rd Comment
  CAS-BOT-BC51706  Ceanothus papillosus B. D. Stark 1933-1-5 10030 Orange 2 mi. So. of summit of Skyline Drive along road to Santiago Peak, Santa Ana Mts. 1219 Comment
  CLARK-A1528-3899  Ceanothus papillosus subsp. roweanus John C. Roos 1960-5-30 Orange Santa Ana Mountains 1066 Comment
  RSA608242  Ceanothus papillosus var. roweanus Steve Boyd, Bart O'Brien 1998-1-13 10076 Orange Santa Ana Mountains: north end of the range, NW of Pleasants Peak, along Main Divide Road (3S04) ca. 4.9 mi south of Oak Flat, at saddle between Hagador and Baker canyons. 1165 Comment
  UCD169753  Ceanothus papillosus var. roweanus R. F. Thorne; C. W. Tilforth, E. W. Lathrop 1977-4-27 49697 Orange Northern Santa Ana Mountains: Sierra Peak. 899 Comment
  RSA17268  Ceanothus spinosus Carl B. Wolf 1936-7-8 8098 Orange Along Ortega Hiway, San Juan canyon, 0.2 mi. W. of Riverside Co. line. 274 Comment
  SD42458  Ceanothus spinosus Carl B. Wolf 1941-8-15 11151 Orange Santa Ana Mts., W. Slope Santiago Truck Trail to Santiago Pk. 1.2 mi above F. S. Gate. 609 Comment
  UC1071388  Ceanothus spinosus A. E. Wieslander 1934-3-29 448 Orange San Juan Creek 304 Comment
  UCSB48024  Ceanothus spinosus Roberts, Fred 1981-4-11 Orange Santa Ana Mtns.: San Juan Canyon, hwy. 74, 3.7km E San Juan Guard Station 114 Comment
  UCR263637  Ceanothus tomentosus Ed Kentner 2012-5-22 139 Orange Santa Ana Mountains, Irvine Ranch Conservancy, Fremont Canyon Reserve north side of windy Ridge Road 500 Comment
  RSA171020  Ceanothus tomentosus var. olivaceus Robert F. Thorne 1963-7-26 32837 Orange In Tin Mine Canyon above Beek's Spring, Trabuco District, Santa Ana Mts., Cleveland National Forest. 854 Comment
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Apr 25 2011
  RSA5269  Ceanothus tomentosus var. olivaceus Carl B. Wolf, B. D. Stark 1932-12-19 4436 Orange Main divide of Santa Ana Mts. between Sierra Peak and Skyline Drive. 762 Comment
  UC30921  Centaurea melitensis C. W. Hamlin 1896-1 Orange Buena Park Comment
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Apr 30 2008
  UCR131879  Centaurea melitensis J. Mallory, V. McCoy 1995-7-3 6454- 134 Orange Santa Ana Mountains: Blind Canyon, c. 0.5 mi. NE of confluence w/ Santiago Canyon Wash; north of Irvine Lake. 300 Comment
  POM202165  Centaurea melitensis L. M. Booth 1932-5-26 1117 Orange Newport Bay. Comment
  RSA721128  Centaurea melitensis Kenneth Beard s.n. Orange East of S. A. River on Edinger Road Comment
  RSA716660  Centaurea solstitialis Fred M. Roberts, Michelle Balk, Robert Allen, Megan Enright 2004-7-18 6077 Orange Santa Ana Mtns.: San Jun Cyn., SR 74, north side of road, c.a. 4.6km E San Juan Guard Sttion by road. 393 Comment
  CDA7330  Centaurea solstitialis Robert L. Pope 1957-9-5 Orange 0 Comment
  RSA80651  Centaurium venustum P. A. Munz, E. K. Balls 1952-8-19 17927 Orange El Cariso Camp Ground W of Ortega summit, Santa Ana Mts. Comment
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Nov 1 2013
  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
  CAS-BOT-BC288844  Centromadia parryi subsp. australis David D. Keck 1932-9-30 1897 Orange Ca 5 miles S of Santa Ana on road to Newport Beach Comment
  CAS-BOT-BC288845  Centromadia parryi subsp. australis David D. Keck 1932-9-30 1897 Orange Ca 5 miles S of Santa Ana on road to Newport Beach Comment
  UC1424929  Centromadia parryi subsp. australis C. W. Tilforth 1975-9-6 1047 Orange ne shoreline Upper Bay; Newport Beach Comment
  UCR100180  Cercocarpus betuloides Scott D. White 1996-12-20 4637 Orange Santa Ana Mountains, above Modjeska Canyon; proposed water tank site 488 Comment
  SEINET10686161  Cercocarpus minutiflorus Karen M. Meyer, Andrew Townesmith; Tracy Scott 2007-3-10 Meyer 5 Orange Cleveland National Forest, 0.5 mi. N. Main Divide Rd./NF3S04, off Hwy. 74. Elsinore Mountains, ridge top. 917 Comment
  UCD170238  Cercocarpus minutiflorus K. M. Meyer; A. Townesmith 2007-3-10 5 Orange Cleveland National Forest, 0.5 mi. N Main Divide Rd./NF3S04, off Hwy. 74. Elsinore Mtns., ridge top. 917 Comment
  RSA562738  Chaenactis artemisiifolia Steve Boyd 1992-5-20 7454 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of wilderness in Lucas Canyon along a new section of trail heading up major side canyon northward to Sitton Peak Road (7S09), 305 Comment
  RSA734852  Chaenactis glabriuscula A. C. Sanders, Mitch Provance 2008-5-20 35415 Orange Lomas de Santiago area, Santiago Creek Canyon, c. 3/4 mile below Modjeska Canyon confluence 345 Comment
  UCR192486  Chaenactis glabriuscula A. C. Sanders, Fred M. Roberts 2008-3-25 34513 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  UCR234453  Chaenactis glabriuscula Dick Newell, Don Millar 2012-4-10 245 Orange Peninsular Range; Santa Ana Mtns., Lakeside Rd. just off Black Star Canyon Rd., near State Spur Rd. 260 Comment
  RSA603363  Chaenactis glabriuscula var. glabriuscula Scott D. White, B. Leatherman 1997-6-12 5344 Orange East of San Juan Capistrano: San Juan Creek beteen Highway 74 bridge and Mission Vieja site, i.e. ca. 2 - 4 miles E of I-15 [Interstate 5] / Highway 74 junction. 46 Comment
  CAS-BOT-BC284202  Chaenactis glabriuscula var. lanosa LeRoy Abrams 1903-4-13 3254 Orange Buena Park Comment
  RSA13106  Chaenactis glabriuscula var. lanosa Percy C. Everett 1935-5-17 6865 Orange Atwood, 7/8 miles E. S side of Santa Fe R. R tracks 152 Comment
  SEINET2028558 Image available Chaenactis glabriuscula var. orcuttiana Fay A. MacFadden 1931-3-1 2969 Orange Laguna Beach Comment
  RSA648946  Chamaesyce albomarginata Mark Breidenbaugh, Caralisa Breidenbaugh 1992-5-25 62 Orange 1/2 mile south of Chino Hills State Park Boundary. 228 Comment
  CDA25868  Chamaesyce maculata Mark A. Elvin, B. S. Herhus 2006-11-4 5252 Orange Southern Coastal; Huntington Beach; 1.5 km southwest of Wintersburg, southwest of junction Slater and Goldenwest; Shipley Nature Center. Comment
  RSA719411  Chamaesyce maculata Fred M. Roberts, Robert L. Allen 2006-10-8 6424 Orange San Juan Capistrano: San Juan Creek Flood Control Channel, c.a. 0.2 to 0.3km N Stonehill Dr. bridge and 1.1km SSE Marco Forster Jr. High Sch. 4 Comment
  UC570789  Chamaesyce polycarpa H. L. Mason 1926-4-25 2912 Orange 5 mi s Laguna Comment
  RSA576457  Chamaesyce polycarpa var. polycarpa F. W. Peirson 1924-5-31 s.n. Orange 5 miles southeast of Laguna Beach. Comment
  RSA70390  Chamaesyce polycarpa var. polycarpa F. W. Peirson 1924-5-31 4663 Orange 5 miles southeast of Laguna Beach. Comment
  IRVC26723  Chasmanthe aethiopica Mark A. Elvin, J. Liou, J. Carpenter, J. Nguyen 2004-3-8 3164 Orange UCI Arboretum Southern Coastal 15 Comment
  IRVC20363  Cheilanthes newberryi Fred M. Roberts, D. A. Roberts 1983-3-22 936 Orange San Juan Canyon, above Hwy 74, 2.7km ENE San Juan Guard Sta.; 3.6km SSW Sugar Loaf Pk., Santa Ana Mountains 407 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
  RSA184162  Chenopodium album I. L. Wiggins 1966-5-25 20664 Orange Parkway along south side of Nutwood Lane, margin of CSCF campus, Fullerton. Comment
  RSA423400  Chenopodium ambrosioides F. R. Fosberg 1930-7-10 S 3175 Orange Anaheim Landing. [Los Angeles Co. on label] 2 Comment
  RSA5964  Chenopodium ambrosioides C. B. Wolf 1932-9-13 4036 Orange Bryant Ranch, No. boundary between San Gabriel River Flood Control Dike & Well in SE 1/4 sect. 25., 1300 ft W of n.E. corner of S.E. 1/4 Sect. 25. T4S R12W. 6 Comment
  RSA696276  Chenopodium ambrosioides Keith E. Hoffmaster 1934-7-3 s.n. Orange near Costa Mesa Comment
  UCR193802  Chenopodium berlandieri A. C. Sanders, Fred M. Roberts 2008-7-3 35676 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor 415 Comment
  RSA732153  Chenopodium californicum A. C. Sanders, Fred M. Roberts 2008-4-22 35022 Orange Santa Ana Mtns.: Lomas de Santiago, Limestone Canyon, c. 2 miles SW of Silverado 1200 Comment
  UCSB57555  Chenopodium californicum Roberts, Fred 1984-3-24 Orange Rancho Mission Viejo; Hwy. 74, 9.2 km. by road E San Juan Capistrano; near mouth of Trampas Canyon 90 Comment
  IRVC387  Chenopodium murale B. Mawdsley 1965-3-30 Orange east bluff at Mar Vista. Newport Beach Comment
  IRVC405  Chenopodium murale S. Park 1965-3-26 Orange Corona del Mar, alley between Narcissus Ave. and Marigold Ave. Newport Beach Comment
  RSA478560  Chenopodium rubrum L. M. Booth 1933-9-8 1390 Orange Anaheim Marsh. Comment
  UCSB48358  Chlorogalum parviflorum Roberts, Fred 1982-7-1 Orange South Laguna; Niguel Hill, at end of Sea Island Dr., 1.9 km. SE Aliso Peak 210 Comment
  UC1618038  Chorizanthe Donald G. Nelson 1935-4-14 292 Orange near Pacific Electric Railway Station Newport Beach Comment
  UC1618060  Chorizanthe Donald G. Nelson 1935-6-22 325 Orange Corona del Mar Comment
  RSA0004893  Chorizanthe chrysacantha P. A. Munz, R. D. Harwood 1920-4-17 3775 Orange Laguna Beach. Bluffs along coast Comment
  CLARK-A1528-3600  Chorizanthe fimbriata John C. Roos 1965-6-16 Orange Comment
  UCR231161  Chorizanthe fimbriata Dick Newell, Judy Booth 2011-6-26 192 Orange Peninsular Range; Santa Ana Mtns., Long Canyon Rd., NW of Hwy 74, Cleveland National Forest 965 Comment
  UCR158021  Chorizanthe procumbens Adrian Wolf 1998-5-15 290 Orange South Coast, Dana Point Headlands, north of Scenic Dr. 67 Comment
  CAS-BOT-BC255256  Chorizanthe staticoides John Thomas Howell 1927-6-8 2455 Orange Southern Puente Hills in the Santa Ana Canyon 182 Comment
  RSA392685  Chorizanthe staticoides Ella M. Kennedy 1923-5-14 s.n. Orange Laguna Beach. 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
  RSA587875  Chorizanthe staticoides Fred M. Roberts 1990-5-10 4626 Orange Rancho Mission Viejo: Lower Talega Canyon, TRW Lease Holding, c.a. 4.8km NE Clemente Survey Marker. 122 Comment
  RSA588851  Chorizanthe staticoides Fred M. Roberts, Kathy Keane 1989-6-28 4392 Orange Laguna Niguel: Just beyond end of Le Conte Rd along ridge, 0.6 km SW summit of Niguel Hill. 195 Comment
  RSA698367  Chorizanthe staticoides Kenneth Beard s.n. Orange East of Irvine Park. 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
  IRVC9096  Cirsium brevistylum C. A. Taylor 1966-5-18 66 -116 Orange Santa Ana Canyon, Old Rancho Santa Ana Botanic Garden site; full sun on flats and slopes. Chino Hills Comment
  UC537119  Cirsium brevistylum Lawrence M. Booth 1932-5-15 1199 Orange 1/2 mi from Pacific Ocean Comment
  RSA659544  Cirsium occidentale P. Shirokawa 1998-5-7 18 Orange Cleveland National Forest- Trabuco Ranger District, 0.55 miles from Ortega Highway (State Highway 74) on North Main Divide Road 838 Comment
  CLARK-A1528-1094  Cirsium occidentale Michelle Loef 1973-5-25 250573-2 Orange 91 Comment
  UCSB52870  Cirsium occidentale var. californicum Roberts, Fred; Allen, R. 1983-3-27 Orange Dana Point Headlands; north of Dana Strand Rd., 0.5 km. W Dana Point Harbor; 0.7 km. SSW Richard Henry Dana School 79 Comment
  RSA68335  Cirsium occidentale var. occidentale G. R. Campbell 1951-5-30 16154 Orange San Juan Canyon, Ortega Hwy, 4 mi. inside west border of Cleveland National Forest. 152 Comment
  RSA737488  Cistanthe monandra D. E. Bramlet 2008-5-16 4277 Orange Agua Chinon Wash. Site is located in an ephemeral tributary 91m NW of the access road and 1.74km NE of Hwy 241 274 Comment
  CAS-BOT-BC172419  Clarkia bottae Munz; Street; Williams 1919-5-3 2647 Orange Santa ana river Canyon Comment
  RSA562745  Clarkia bottae Steve Boyd, T. S. Ross 1992-5-19 7441 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of the wilderness in Lucas Canyon from crossing the creek by Lucas Canyon Trail, downstream to confluence with Aliso Canyon. 274 Comment
  SDSU8634  Clarkia bottae Ruth Haaf, Josephine Morehous 1932-5-28 Orange Carbon Canyon Comment
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Jan 24 2013
  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
  UCR193001  Clarkia bottae A. C. Sanders, T. B. Salvato 2008-5-13 35377 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
  RSA631396  Clarkia deflexa Valerie L. Soza, LeRoy Gross 1999-6-7 475 Orange West side of Modjeska Peak, along Main Divide Road. 1448 Comment
  POM201140  Clarkia purpurea subsp. quadrivulnera C. L. Hitchcock 1933-6-1 4996 Orange 1/4 mi SW of Muddy Springs near Roundtop peak, Rancho Santa Ana. 427 Comment
  POM6351  Clarkia purpurea subsp. quadrivulnera P. A. Munz 1919-5-3 2669 Orange Santa Ana River Canyon. Comment
  SEINET7067524  Clarkia purpurea subsp. quadrivulnera A. G. Vestal 1947-6-12 s.n. Orange Grade to Trabuco Canyon. Coordinate datum: NAD27. UTM Zone 11, 445302mE, 3724321mN. Comment
  RSA581440  Clarkia purpurea subsp. quadrivulnera Fred M. Roberts, Gordon Marsh 1989-5-12 4359 Orange Santa Ana Mountains: Santiago Canyon, Flemming Regional Park, just E of Modjeska at end of paved road, ca. 3.3 km WSW Laurel Springs. 430 Comment
  RSA448336  Clarkia rhomboidea Albert J. Perkins 1914-6-14 s.n. Orange Santiago Peak trail Comment
  RSA761794  Clarkia rhomboidea Robt. Allen 2003-6-22 12275 Orange West-facing upper slope of Santiago Peak, along North Main Divide Road,. circa 0.10 air miles northwest of Santiago Peak summit. 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
  RSA0061168  Clematis ligusticifolia Robt. Allen 2007-8-11 s.n. Orange Santa Ana Mountains region: Silverado Canyon, Maple Springs Road. 791 Comment
  RSA386282  Clematis pauciflora M. B. Dunkle 1936-3-14 4701 Orange San Juan Canyon. Comment
  UC1201823  Clematis pauciflora R. W. 1933-4-1 Orange near Capistrano Comment
  RSA329669  Cleome isomeris G. D. Wallace 1966-4-16 479 Orange Along Hwy 101 about 10 miles north of Camp Pendleton. Comment
  RSA789221  Clinopodium chandleri Naomi S. Fraga, Duncan S. Bell 2009-5-11 2721 Orange Chiquita Trail 762 Comment
  UCD116910  Cneoridium dumosum Raymond A. Evans 1951-3-23 s.n. Orange South of Laguna. 60 Comment
  LA208484  Cneoridium dumosum B. Lower; 1954-4-3 Orange Dry hill behind Laguna Comment
  POM177568  Cnicus benedictus A. Gilman 1931-5-25 s.n. Orange Field Banning Comment
  RSA0117461  Collinsia concolor Naomi Fraga 2009-5-11 2713 Orange San Juan loop trail, Cleveland National Forest just west of Sugarloaf Spur Trail. 912 Comment
  UCR256916  Collinsia concolor Naomi Fraga 2009-5-11 2713 Orange Santa Ana Mountains, Cleveland National Forest, San Juan Loop Trail just west of Sugarloaf Spur Trail 912 Comment
  RSA649085  Collinsia heterophylla Karl Price 1988-4-29 12 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
  POM15031  Comarostaphylis diversifolia subsp. diversifolia Mary F. Spencer 1932-05 1971 Orange Canyon Prope. 61 Comment
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Nov 19 2013
  IRVC3696  Conium maculatum D. W. Bryant 1965-3-28 s.n. Orange Laguna Canyon; Laguna Canyon Rd. Southern Coastal Comment
  OBI7980  Convolvulus arvensis Kurt R. Neisess 1975-12-20 s.n. Orange In the Fullerton Hills area Comment
  RSA573293  Convolvulus arvensis Steve Boyd, Timothy S. Ross, Bob Boyd 1994-9-14 8350 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area of the Cleveland National Forest, Lucas Canyon trail at stream crossing in Lucas Canyon. 317 Comment
  UCR16173  Convolvulus arvensis Art Dawson 1968-5-4 s.n. Orange Rancho Mission Viejo, Ortega Hwy near San Juan Capistrano, 0.5 mi. north of Ranch Headquarters Comment
  RSA0127343  Convolvulus simulans Fred M. Roberts 2016-4-29 8046 Orange Lomas de Santiago: north of Santiago Canyon Road, southwest slope of hill marked 1332 on topo maps, just west of Irvine Lake, 1.6 km S Irvine Lake dam spillway and 0.8 km NW Irvine Lake Park. 335 Comment
  RSA610239  Convolvulus simulans Fred M. Roberts, Tony Bomkamp 1997-3-13 4982 Orange Rancho Mission Viejo: Christianitos Canyon, 4 km ESE Viejo Survey Mark. 5 Comment
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Oct 20 2011
  CAS-BOT-BC285927  Conyza bonariensis Ira L. Wiggins 1965-10-24 20282 Orange Along Skyline Drive near intersection with Raymond Street, Fullerton Comment
  RSA550006  Conyza bonariensis Scott D. White 1992-9-23 840 Orange Vicinity of Olinda, near city of Brea, immediately N of Carbon Cyn Rd & E of Placentia Ave.; ca. 1 mi. (airline) SSE of Tonner Cyn. 183 Comment
  RSA0036109  Conyza canadensis Fred M. Roberts, Carol A. Roberts 2008-9-28 7113 Orange Dana Point: Dana Point Headlands, CNLM Preserve near NE Gate, 0.5km W Marine Institute (Dana Point Harbor) 75 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
  RSA735162  Conyza floribunda A. C. Sanders, Fred M. Roberts 2008-5-6 35210 -B Orange Lomas de Santiago, lower Hicks Canyon near Irvine Ranch gate and road junction to cement plant 180 Comment
  UCR179759  Conyza floribunda R. E. Riefner Jr. 2006-10-8 06- 481 Orange South Coast, Irvine, San Diego Creek near 405 Freeway, between 405 and Laguna Road 51 Comment
  RSA0135556  Cordylanthus maritimus subsp. maritimus David E. Bramlet 2005-7-1 3888 Orange Upper Newport Bay, west side of the Bay approximately 61m east of the end of Mariners Drive. Some 611m NW of the Big Canyon area. 0 Comment
  UCR52604  Cordylanthus rigidus Jeri Hirshberg 1988-6-7 s.n. Orange Santa Ana Mountains, Santa Ana Mountains 275 Comment
  SFV10455  Cordylanthus rigidus subsp. setigerus M. L. Vincent 1963-7-8 432 Orange 4 miles east of San Juan Capistrano. Comment
  CAS-BOT-BC287841  Coreopsis californica Miss. Helen D. Geis 1904-4-1 732 Orange Silverado Canon, Santa Ana Mts Comment
  RSA651110  Cotula australis Bob Edwards 1948-5-14 s.n. Orange Found on vacant lot in Orange. 59 Comment
  CHSC30401  Cotula coronopifolia Diane H. Ikeda 1980-4-5 222 Orange Upper Newport Back Bay Ecological Reserve, 0.3 mi s of intersection of Back Bay Drive and San Joaquin Rd. on Back Bay Drive. 1 Comment
  CHSC35478  Cotula coronopifolia Thomas Eakle 1971-5-28 148 Orange Ca. 2 mi. NE of Newport at Newport Bay Saltmarsh. 3 Comment
  CAS-BOT-BC77622  Cotyledon Carl B. Wolf 1936-7-8 8099 Orange Coast Highway, western end of Newport Bay 9 Comment
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Dec 20 2019
  UCR222624  Cotyledon orbiculata T. B. Salvato 2010-10-27 5107 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
  SD134612  Cotyledon orbiculata var. oblonga Reid Moran 1992-8-31 31093 Orange South slope above 1800 Coast Highway, Newport Beach. 14 Comment
  SD142785  Cotyledon orbiculata var. oblonga Reid Moran 1993-6-30 31095 Orange South slope above 1500 Coast Highway, Newport Beach. 14 Comment
  RSA699758  Crassula connata Fred M. Roberts, D. E. Bramlet 2003-5-15 5867 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, tributary to Cristianitos Cyn., 1.68km SW Gato Gate and .24km NW of SDG&E substation. 116 Comment
  UCR103791  Crassula connata Scott D. White 1997-2-19 4700 Orange Santa Ana Mtns, above Modjeska Canyon; proposed water tank site 488 Comment
  UCR5169  Crassula connata Barbara T. Gittins, O. F. Clarke 1966-3-19 890 Orange Pacific slope, Irvine Ranch, east of University of California Irvine campus, Newport Beach 91 Comment
  RSA609048  Cressa truxillensis L. C. Wheeler 1932-6-25 864 Orange Newport Bay Comment
  RSA793017  Cressa truxillensis Justin M. Wood 2011-4-12 3670 Orange South Coast, Santa Ana River: marsh just upstream of Pacific Coast Highway. On isolated sand capped island. 0 Comment
  UCR258351  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
  RSA5240  Cressa truxillensis C. B. Wolf 1932-9-13 4028 Orange Edge of field So. of Bryant Ave., 1/2 mi. W of Los Alamitos Blvd. 8 Comment
  RSA697160  Cressa truxillensis Olive Van Meter s.n. Orange Newport Beach. Comment
  UC219257  Crocanthemum scoparium var. vulgare Munz and Johnston 1922-5-18 5307 Orange Santa Ana River Canyon, in a side canyon Santa Ana River Canyon 274 Comment
  UC1607992  Croton Donald G. Nelson 1935-3-23 183 Orange hills n Fullerton Comment
  UCD141986  Croton californicus G. L. Webster 1966-12-11 7480 Orange Dana Point. Comment
  UCR193030  Croton californicus A. C. Sanders, Fred M. Roberts 2008-6-17 35518 Orange Peninsular Range; Santa Ana Mtns., middle section of Weir Canyon, SSE of Walnut Canyon Reservoir 225 Comment
  RSA798545  Cryptantha clevelandii R. F. Thorne, E. W. Lathrop 1977-5-18 49747 Orange Santa Ana Mountains: summit of Santiago Peak 1733 Comment
  UCR193047  Cryptantha clevelandii A. C. Sanders, Mitch Provance 2008-5-20 35409 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago area, Santiago Creek Canyon, c. 3/4 mile below Modjeska Canyon confluence 355 Comment
  UCR217457  Cryptantha clevelandii Mark A. Elvin 2003-1-26 2226 Orange South Coast, Irvine, UC Irvine Open Space Preserve, NE side, between core of UCI campus (E Peltason Dr.) and Hwy 73 69 Comment
  RSA539422  Cryptantha clevelandii Fred M. Roberts, Karlin G. Marsh 1989-3-7 4194 Orange Lomas de Santiago: Loma Ridge, Hicks Canyon, 2.3km W Bee Survey Mark. 165 Comment
  RSA6632  Cryptantha clevelandii P. A. Munz, L. T. Street, G. Williams 1919-5-3 2619 Orange Santa Ana River Canyon. Comment
  UCR263635  Cryptantha clevelandii var. clevelandii Ed Kentner 2012-4-24 130 Orange Peninsular Range: Santa Ana Mountains, Lomas De Santiago, El Toro property 200 Comment
  RSA542657  Cryptantha intermedia Fred M. Roberts 1988-4-10 3902 Orange Lomas De Santiago: Loma Ridge, Upper Limestone Canyon, c.a. 3.2 kilometer NNW Bolero Lookout. 347 Comment
  RSA683170  Cryptantha intermedia Scott D. White, Amanda Duchardt 2003-4-10 9022 Orange Ridges & east-facing canyons above Trampas Canyon. 122 Comment
  UCD119839  Cryptantha intermedia Beecher Crampton 1967-5-23 7957 Orange 4 miles east of Irvine UC - South Coast Field Station. Comment
  SD87710  Cryptantha intermedia var. johnstonii F. W. Peirson 1924-5-31 Orange 5 miles south of Laguna Comment
  IRVC15161  Cryptantha microstachys E. McRae 1965-4-8 Orange Costa Mesa Comment
  RSA732085  Cryptantha microstachys A. C. Sanders, Fred M. Roberts 2008-3-25 34530 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  UCR77711  Cryptantha microstachys Steve Boyd, Orlando Mistretta 1991-5-9 6191 Orange Santa Ana Mtns, Crest of range at Oak Flat, SE of Sierra Peak, just west of Riverside County line. 854 Comment
  UCSB52878  Cryptantha microstachys Roberts, Fred; Marsh, G. 1983-3-30 Orange UC Irvine Ecological Preserve, 0.6 km. SW UCI campus center 43 Comment
  RSA0079432  Cryptantha muricata var. jonesii A. C. Sanders, Fred M. Roberts 2008-4-22 35024 Orange Santa Ana Mtns.: Lomas de Santiago, Limestone Canyon, c. 2 miles SW of Silverado. 366 Comment
  RSA39346  Cucurbita digitata E. L. Paddock 1948-6-16 12734 Orange N of Sante Fe Railroad Tracks opposite Yorba Cemetery Comment
  HSC7010  Cucurbita foetidissima J. W. Johnson 1961-3-29 Orange Newport Beach, N slope overlooking upper Newport Bay Comment
  JEPS42641  Cucurbita foetidissima L. M. Booth 1933-10-18 Orange Newport Comment
  UCR191219  Cucurbita foetidissima A. C. Sanders 2008-4-29 35141 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, western end of Loma Ridge on road to sheriff's training facility, c. 1.5 mi. SW of Santiago Reservoir 335 Comment
  UCR141347  Cupaniopsis anacardioides Robert DeRuff 2001-1 488 Orange Southern Coast, Newport Beach, Newport Back Bay, near edge of 23rd Street Creek 12 Comment
  CAS-BOT-BC80570  Cupressus forbesii James R. Shevock 1972-1-16 1332 Orange Silverado Cyn, near Summit; Santa Ana Mts. 1371 Comment
  IRVC19540  Cupressus forbesii Karlin G. Marsh 1982-7-30 Orange Coal Canyon, west slope, at Claymont Clay Mine. Santa Ana Mountains Comment
  RSA14145  Cupressus forbesii R. C. Bacigalupi 1935-6-22 2354 Orange Head of Clay Mine Canyon on drainage of Santa Ana River, northern end of Santa Ana Mountains Comment
  RSA352379  Cupressus forbesii C. B. Wolf 1935-1-2 6278 Orange Slopes of Sierra Peak, west of Claymine Canyon, along road to Peak. 670 Comment
  RSA7199  Cupressus forbesii B. D. Stark 1933-3-17 4532 Orange Claymine Canyon, Santa Ana Mts. 609 Comment
  RSA7203  Cupressus forbesii B. D. Stark 1933-1 4532 Orange Claymine Canyon, Santa Ana Mts. 609 Comment
  UC1061653  Cupressus forbesii Howell Orange Santa Anna Mountains Comment
  UC1134210  Cupressus forbesii A. Lewis 1934-4-1 382 Orange 2 1/2 mi w Sierra Peak; Corona Quadrangle Comment
  UC1445981  Cupressus forbesii J. T. Howell 1927-8-10 2983 a Orange Clay Mine branch of Santa Ana Canyon Sierra Peak Comment
  UCR112935  Cupressus forbesii R. E. Riefner Jr. 2000-1-18 20- 101 Orange Peninsular Range, Santa Ana Mountains: North Ranch Policy Plan Area, Main Divide Road, top of Gypsum Canyon at Windy Ridge 518 Comment
  NY16679  Cupressus guadalupensis var. forbesii L. Abrams 1933-10-8 13653 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
  POM17859  Cuscuta californica P. A. Munz 1923-7-8 7330 Orange Santa Ana River Canyon Comment
  RSA409705  Cuscuta californica F. R. Fosberg 1931-6-21 5143 Orange Silverado Canyon. Santa Anita Mts. Comment
  RSA409706  Cuscuta californica George Price 1967-5-14 s.n. Orange Silverado Canyon Comment
  RSA409707  Cuscuta californica George Price 1967-5-17 s.n. Orange O'Neil Park Comment
  RSA503199  Cuscuta ceanothi G. D. Wallace, G. Cromwell 1966-4-16 457 Orange W edge of Cleveland Nat. For. about 5 mi. E of San Juan Capistrano, in the Santa Ana Mountains, in Hot Springs Canyon. Comment
  RSA788245  Cuscuta ceanothi R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49627 Orange Santa Ana Mountains: San Juan Canyon, along Ortega Highway (74) across from San Juan Fire Station Comment
  UCR170447  Cuscuta ceanothi Jeffrey Ross, R. Zaka, P. Ross 1998-5-2 34 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
  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
  UCSB59703  Cuscuta salina Tilforth, C. 1975-9-3 Orange Northeast shoreline of Upper Bay, Newport Beach, Orange County Comment
  CDA2109  Cuscuta subinclusa D. G. Kelch 2006-12-9 6 .558 Orange Irvine. University Dr along tidal creek just E of I-73. Comment
  RSA725513  Cuscuta subinclusa Fred M. Roberts, Robert L. Allen 2007-9-28 6617 Orange Lomas de Santiago: above lower Santiago Cyn. wash along Santiago Cyn. Rd. just south of Irvine Mesa, 3.3 km N Bolero Lookout. 332 Comment
  UC879591  Cuscuta subinclusa F. R. Fosberg 1929-12-21 S 2469 Orange Trabuco Canyon Santa Ana Mts. 500 Comment
  UCR66997  Cycloloma atriplicifolium A. C. Sanders 1990-10-6 10203 Orange Newport Bay, North Star County Beach Area on the SW end of the Bay, c. 2 km inland of Hwy 1. 3 Comment
  RSA30240  Cynara cardunculus subsp. flavescens Elisabeth Norland 1942-8-12 11296 Orange 2 miles SW of Costa Mesa near jct of 17th Street and Hwy 101. Comment
  POM356392  Cynara cardunculus subsp. flavescens L. C. Wheeler 1932-6-22 850 Orange 1/2 miles N Newport Bay. 15 Comment
  RSA184113  Cynodon dactylon I. L. Wiggins 1965-11-6 20353 Orange Near well #14, Kramer Oil Estates, near end of county road to Rancho Santa Ana. Comment
  RSA650406  Cynodon dactylon Norman Willis 1948-2-8 s.n. Orange East of Orange. 61 Comment
  UCR193829  Cynosurus echinatus A. C. Sanders, Fred M. Roberts 2008-7-16 35847 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, along road in canyon below Dripping Spring, c. 7.5 mi. ESE of Tustin 350 Comment
  RSA734855  Cyperus eragrostis A. C. Sanders, Mitch Provance 2008-5-20 35400 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
  CHSC116492  Cyperus eragrostis R. F. Thorne; E. W. Lathrop, W. Wisura 1977-7-8 49572 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74). Comment
  RSA161258  Cyperus erythrorhizos Peter H. Raven 1961-10-15 16852 Orange Santa Ana River at Anaheim Street Crossing 61 Comment
  RSA365080  Cyperus erythrorhizos Anstruther Davidson 1917-08 3267 Orange Near Laguna Beach. Comment
  CAS-BOT-BC114323  Cyperus esculentus L. M. Booth 1932-7-25 1310 Orange Santa Ana River 1 1/2 mi from ocean. Comment
  RSA0026257  Cyperus involucratus Fred M. Roberts 2013-6-12 7793 Orange Peninsular Ranges: Santa Ana Mtns: Lower Silverado Canyon along Silverado Creek on north side of Silverado Canyon Road, 0.6 kilometers ENE Silverado School and 1.4 kilometers up stream Black Star Road Crossing. 320 Comment
  RSA751520  Cyperus involucratus A. C. Sanders, Fred M. Roberts 2008-8-7 35999 Orange Weir Canyon at powerline crossing, 1.0 mi. (air) SSE of Walnut Canyon Reservoir 226 Comment
  CAS-BOT-BC114244  Cyperus laevigatus Carl B. Wolf 1932-7-2 3813 Orange Carbon Canyon, 1/8 mi below La Vida Springs. 213 Comment
  SD28115  Cyperus laevigatus Carl B. Wolf 1932-7-2 3814 Orange Carbon Canyon ; 0.125 mile below La Vida Springs; edge of small watercourse. 213 Comment
  CAS-BOT-BC114242  Cyperus laevigatus J. Ewan 1931-10-3 5197 Orange Choking stream bed below La Vida Soda Springs, Carbon Canyon. Comment
  POM187598  Cyperus laevigatus Joseph A. Ewan 1931-10-3 5197 Orange Below La Vida Soda Springs [now La Vida Mineral Springs], Carbon Canyon. Comment
  RSA488144  Cyperus laevigatus Fred M. Roberts, Gordon Marsh 1985-10-31 2533 Orange Santa Ana River: adjacent to Huntington Beach, 0.2 kilometers S [of] Adams Street bridge. 4 Comment
  UCSB56512  Cyperus niger Marsh, G.; Marsh, K. 1977-11-21 Orange Santa Ana Mts.; San Juan Hot Springs Comment
  UCR240195  Cyrtomium falcatum R. E. Riefner Jr. 2012-1-16 12- 5 Orange South Coast, city of Newport Beach, Corona Del Mar, beach area west of Morning Canyon Road 1 Comment
  UCR241041  Cyrtomium falcatum Robert DeRuff 2010-1 487 Orange South Coast, Upper Newport Bay, near Back Bay Dr., below Eastbluff North 5 Comment
  RSA648662  Cyrtomium falcatum R. E. Riefner 2000-7-10 20 -640 Orange Newport Beach / Corona del Mar End of Poppy Street off Pacific coast Hwy. Comment
  SD28072  Dactylis glomerata Carl B. Wolf 1932-6-13 3715 Orange Fullerton, Rose Drive 53 Comment
  RSA295240  Dactyloctenium aegyptium E. Wegener 1970-8-11 LASCA- 948 Orange Near Costa Mesa. Comment
  CAS-BOT-BC402178  Datisca glomerata R. F. Thorne; E. W. Lathrop; W. Wisura 1977-7-8 49563 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74). Comment
  UCSB48221  Datisca glomerata Roberts, Fred 1981-6-22 Orange Santa Ana Mtns.: San Juan Canyon; 0.1 km. N Lower San Juan Picnic Ground 390 Comment
  UCR154262  Datura stramonium Mark A. Elvin 2004-5-2 3417 Orange Southern Coastal, Irvine: San Joaquin Freshwater Marsh, near Campus and University Drives; 1.7 km (air) NNW UC Irvine campus center 3 Comment
  RSA0046822  Datura stramonium Jason Berkley 1994-5-10 27 Orange Carbon Canyon Regional Park, off face of dam, off the bike trail coming from Rose Dr. Comment
  RSA20216  Datura stramonium E. R. Johnson 1938-5-14 9409 Orange Rancho anta Ana, Santa Ana Canyon S. of pump house E. of ranch houses. 122 Comment
  UCSB48130  Datura wrightii Roberts, Fred 1981-4-12 Orange SANTA ANA MOUNTAINS: San Juan Canyon, Hwy 74 2.0km SW by road from San Juan Guard Station; 2.7km SW Juan Rancho Survey Mark 210 Comment
  POM6364  Daucus pusillus P. A. Munz, L. T. Street, G. Williams 1919-5-3 2645 Orange Santa Ana River Canyon. Comment
  UCD127423  Daucus pusillus B. Pitzer 1996-4-30 2780 Orange Upper Newport Bay: California Department of Fish and Game Ecological Reserve off (west of) Jamboree Road. 6 Comment
  UCR100443  Daucus pusillus B. G. Pitzer 1996-4-30 2780 Orange South Coast, Upper Newport Bay, Calif. Dept. Fish & Game Ecological Reserve, off (W of) Jamboree Road 6 Comment
  UCSC001457  Daucus pusillus Peter Kamb 1948-6-19 1086 Orange Holy Jim Canyon, Santa Ana Mountains 610 Comment
  CAS-BOT-BC299333  Deinandra fasciculata John Thomas Howell 1931-6-1 6625 Orange San Clemente Comment
  UC729957  Deinandra fasciculata Carl B. Wolf 1932-7-2 3811 Orange opposite Olinda Pilgrim Church Valencia Ave.; Olinda Comment
  HSC24363  Deinandra fasciculata Michael Ward 1970-8-22 5 Orange Ca. 4 mi. NE of Huntington Beach at Bolsa Chica Salt Marsh adjacent to to Bolsa Bay 0 Comment
  SEINET8043519 Image available Deinandra paniculata R. E. Riefner Jr. 2008-1 08 -100 Orange Ladera Ranch, Cecil Pasture at Jerome Rd. 157 Comment
  SFV3981  Deinandra paniculata A. M. Johnson 1932-4-23 4006 Orange Dry hills north of Orange. Comment
  UCR146881  Deinandra paniculata Kathleen Stockwell 1999-5-30 s.n. Orange South Coast, north of Cristianitos Road, San Clemente 61 Comment
Read comments
Jan 8 2013
  RSA542412  Delphinium cardinale Karlin G. Marsh, Gordon Marsh 1989-6-25 s.n. Orange Santa Ana Mountains: Central Santiago Canyon, Santiago Truck Trail, ca. 4.4km SW Santiago Peak. 792 Comment
  RSA683075  Delphinium parryi Scott D. White, Amanda Duchardt 2003-5-1 9154 Orange Santa Ana Mtn Foothills; slopes above the west side of Canada Gobernadora and adjacent small canyon to the west. 76 Comment
  RSA2091  Dendromecon rigida subsp. rigida Stark 1931-5-23 2229 Orange Santa Ana River Bottom; sw of Ranch houses; Rancho Santa Ana Comment
  RSA5336  Dendromecon rigida subsp. rigida B. D. Stark 1933-1-4 4488 Orange Ridge above Claymine Canyon. No. end of Santa Ana Mts. 305 Comment
  CAS-BOT-BC483630  Dichelostemma capitatum A. M. White 1974-6-1 1430 Orange Ca. 20 miles east of Santa Ana norht of Silverado Canyon 822 Comment
  RSA698093  Dichelostemma capitatum subsp. capitatum Calvert Norland 1929-3-4 39 Orange Orange Co. Park Comment
  RSA737543  Dichelostemma capitatum subsp. capitatum Fred M. Roberts 2008-3-12 6718 Orange Dana Point: Dana Point Headlands CNLM Preserve, western side, c.a. 0.8 km W Marine Institute (Dana Point Harbor). 50 Comment
  SEINET10719725  Dicksonia David B. Dunn 1971-8-13 Dunn 18125 Orange Cultivated plants vicinity of Laguna Beach. Comment
  UCD64152  Digitaria sanguinalis Beecher Crampton 1965-10-27 7580 Orange 2 miles east of Irvine, Irvine Blvd. Comment
  UCR67008  Digitaria sanguinalis A. C. Sanders 1990-10-6 10181 Orange Newport Bay, North Star County Beach Area on the SW end of the Bay, c. 2 km inland of Hwy 1. 3 Comment
  RSA0013965  Dimorphotheca sinuata Fred M. Roberts 2008-4-22 6924 Orange Lomas de Santiago: Loma Ridge, Upper Hicks Cyn., along Haul Road, 0.8 km WNW Bee Peak and 3.2 km E Rattlesnake Resservoir dam. 302 Comment
  SD247553  Diplachne fusca var. fascicularis R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49632 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs. Roadside ditch. Comment
  CAS-BOT-BC152060  Diplacus longiflorus H. E. McMinn 1949-7-9 5598 Orange Ca. 2 miles east of San Juan Capistrano, San Juan Pass, Highway 74 Comment
  SD255235  Diplacus longiflorus R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49795 Orange Santa Ana Mountains: Trabuco Canyon. Comment
  UCR173935  Diplotaxis muralis A. C. Sanders, Mark A. Elvin 2006-5-6 32250 Orange South Coast, UC Irvine Arboretum, NE side of gardens toward Campus Dr. 15 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
  RSA609758  Distichlis spicata L. C. Wheeler 1946-9-28 6382 Orange Newport Bay: 1/2 mile north of main coast highway. 2 Comment
  RSA708818  Distichlis spicata Fred M. Roberts, Robert L. Allen, Chris Barnhill 2004-8-21 6113 Orange Caspers Wilderness Park, San Juan Cyn., Old San Juan Hot Springs, c.a. 0.4km SW San Juan Ranger Station, north of SR 74. 214 Comment
  RSA735749  Distichlis spicata A. C. Sanders, Fred M. Roberts 2008-6-17 35495 Orange Lomas de Santiago, West Loma Ridge Spur Road c. 0.8 mi SW of Irvine Lake and 0.9 mi. SE of Sheriff's Training Facility, just east of Hwy 241 280 Comment
  RSA743471  Distichlis spicata Fred M. Roberts 2008-10-9 7124 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
  UCR193038  Distichlis spicata A. C. Sanders, Fred M. Roberts 2008-6-17 35495 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
  UCD64389  Distichlis spicata var. stolonifera A. A. Beetle 1942-4-19 3099 Orange Rt. 101. 5 miles south of Laguna Beach. Comment
  RSA0019618  Dodecatheon clevelandii Scott D. White 2003-3-21 8809 Orange Santa Ana Mountain Foothills: Rancho Mission Viejo. East-facing slopes above an unnamed tributary to San Juan Creek. 122 Comment
  CAS-BOT-BC41701  Draba cuneifolia var. sonorae Helen D. Geis 1902-3-29 s.n. Orange Santa Ana River. Comment
  LA208047  Drymocallis glandulosa W. Pequegnat; 1938-6-15 sn Orange Santa Ana Mountains, Santiago Peak 1734 Comment
  UC1950970  Drymocallis glandulosa A. C. Sanders with Fred M. Roberts 2008-4-8 34762 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago, Loma Ridge, SSE of Santiago Reservoir on Loma Ridge Spur Rd., above Dripping Springs Loop Rd. El Toro 7.5' Quad. Comment
  IRVC28642  Dryopteris arguta Mark A. Elvin, A. C. Sanders 2005-9-2 4497 Orange Mouth of Lion Cyn, just up stream from Lower San Juan Campground. Santa Ana Mtns 457 Comment
  RSA124720  Dryopteris arguta E. K. Balls, Percy C. Everett 1957-11-25 22843 Orange Trabuco Canyon, 1.7 mi. w. of entrance to Holy Jim Canyon, 670 Comment
  SEINET9625424 Image available Dryopteris arguta M. D. Windham 1998-3-31 98 -091 Orange Along tributary of Hot Spring Canyon in the Santa Ana Mts. ca. 3.01 km SE of Crow Spring. Cleveland N.F. Canada Gobernadora Quad ( 7 1/2 min. ). 320 Comment
  UC1543032  Dryopteris arguta Donald G. Nelson 1935-4-6 267 Orange e San Juan Capistrano (about 4 mi from summit, 200-300 ft below main hwy); San Juan Canyon Comment
  UCR215285  Dryopteris arguta Fred M. Roberts 2008-5-14 6962 Orange Lomas de Santiago, Loma Ridge, upper Bee Flat Canyon below Loma Ridge Road, 1.3 km north of Bee Peak and 5.4 km NW of Bolero Lookout. Irvine Ranch Conservancy 337 Comment
  UCR222640  Dryopteris arguta D. E. Bramlet 2008-4-1 4138 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, upper Hicks Canyon, 24 m south of the Haul Road 302 Comment
  UCR231351  Dryopteris arguta A. C. Sanders, Kent Beaman 2011-9-27 39898 Orange Peninsular Range; Santa Ana Mtns., Maple Springs Truck Trail above Silverado, at major (dry) stream crossing, 3.95 km NNW (347 deg. ) of Santiago Peak 903 Comment
  IRVC24994  Dryopteris arguta Fred M. Roberts, R. Fisher 1986-6-18 3015 Orange Irvine; [San Joaquin Hills], east lateral to Shady Canyon, c.a. 2.9km SE French Hill. 82 Comment
  UC905133  Dudleya R. V. Moran 1948-6-23 3097 Orange n-facing cliff near mouth of Aliso Canyon (s of Laguna Beach); ; near mouth of Aliso Canyon, S of Laguna Beach, Orange Co. 7 Comment
  RSA769617  Dudleya lanceolata E. W. Lathrop 1974-6-27 7423 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  UC933255  Dudleya lanceolata Reid Moran 1950-4-24 3390 Orange San Clemente Comment
  UCR131887  Dudleya lanceolata J. Mallory, V. McCoy 1995-7-3 6454- 66 Orange Santa Ana Mountains: N-facing slope in Santiago Canyon, c. 0.5 mi. east of Santiago Canyon Rd; near Irvine Park 200 Comment
  UCR240090  Dudleya lanceolata Dick Newell, Don Millar 2012-5-22 254 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Hangmans Tree Rd. at Santiago Creek 350 Comment
  UCR281568  Dudleya lanceolata Mitch Provance 2017-6-9 617- 87 Orange Coyote Hills, North Fullerton, East side of Gilbert St., 0.25 miles NNE of intersection with Castlewood Dr. 164 Comment
  CAS-BOT-BC411400  Dudleya lanceolata E. K. Balls 1949-5-21 13470 Orange Botanic Garden, hillside E of Cactus Gerden, Santa Ana River canyon 198 Comment
  CAS-BOT-BC411410  Dudleya lanceolata Ethel H. Campbell 1921-5-1 2 Orange Laguna Beach Comment
  RSA397818  Dudleya multicaulis F. W. Peirson 1922-5-18 3071 Orange Santa Ana River. 122 Comment
  RSA584711  Dudleya multicaulis Fred M. Roberts 1989-6-7 4377 Orange Santa Ana Mountains: Upper Gypsum Canyon along ridge between Gypsum and Blind Canyon, c. 6.3 km WSW Sierra Peak. 411 Comment
  RSA660284  Dudleya multicaulis Orlando Mistretta 1992-6-6 415 Orange Vicinity of Sierra Peak, (Historical locality), on old roadcut heading down to powerlines 695 Comment
  RSA773547  Dudleya multicaulis Fred M. Roberts 2008-6-10 7037 Orange Lomas de Santiago: Loma Ridge, above and to the west of the Haul Road, 2.3 km NNW Bee Peak. Irvine Ranch Conservancy 429 Comment
  RSA741729  Dudleya multicaulis R. E. Riefner 2008-3-5 08 -30 Orange Irvine Ranch Reserve, Fremont Canyon Conservation Easement, E Fremont Canyon, lower Lakeview SCE Rd. 274 Comment
  UCR210059  Dudleya pulverulenta A. C. Sanders, Fred M. Roberts, Jutta Burger 2009-10-21 37192 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hangmans Tree Canyon 379 Comment
  CAS-BOT-BC417040  Dudleya pulverulenta John Thomas Howell 1927-7-26 2840 Orange SE fork of Claymine Canyon, N. Santa Ana Mts. 304 Comment
  POM93  Dudleya saxosa subsp. aloides P. A. Munz 1919-5-5 2796 Orange San Gorgonio Pass. Comment
  CAS-BOT-BC109746  Dudleya stolonifera Reid Moran 1977-6-13 24230 Orange Willow Canyon, tributary of Laguna Canyon. 125 Comment
  SD129960  Dudleya stolonifera Reid Moran 1977-6-13 24230 Orange Willow Canyon, tributary of Laguna Canyon. 124 Comment
  UC718273  Dudleya viscida Carl B. Wolf 1936-6-17 7948 Orange 0.6 mi below San Juan Hot Springs (along Ortega Hwy); Santa Ana Mtns 182 Comment
  CAS-BOT-BC197030  Echinochloa colona Ira L. Wiggins 1965-10-24 20295 Orange On S side of Yorba Linda Blvd. 1/4 mi. E of State College Blvd., Fullerton Comment
  UCD33247  Echinochloa colona Beecher Crampton 1967-5-23 7957 Orange Orange County, 4 miles east of Irvine, UC South Coast Field Station. Comment
  SEINET239014 Image available Echinochloa crus-galli Beecher Crampton 1965-10-27 7586 Orange UC-South Coast F.S. Comment
  UCSB47944  Echinochloa crus-galli Roberts, D. 1980-5-4 Orange Camino Capistrano Rd below bridge (Crown Valley Pkwy) 30 Comment
  POM1011  Echinodorus berteroi I. M. Johnston 1918-9-3 2151 Orange Laguna Canyon (at the lakes) 107 Comment
  RSA794758  Echinodorus berteroi Justin M. Wood, Dustin M. Ray 2010-10-1 2775 Orange Santa Ana Canyon: Santa Ana River plus/minus 1 mi downstream of Gypsum Canyon Bridge, just upstream of large commercial development. Near drain outflow from Flood Control Levee on south side of channel. 110 Comment
  UCR207559  Echinodorus berteroi O. F. Clarke 2004-7-19 s.n. Orange South Coast, Talbert Regional Park, Costa Mesa, at end of 19th St. 3 Comment
  RSA528090  Echium candicans A. C. Sanders 1990-10-6 10183 Orange Newport Bay, North Star County Beach area on the SW end of the bay, ca. 2 km inland of Hwy 1 1 Comment
  RSA151172  Eclipta prostrata Peter H. Raven 1961-10-15 16849 Orange Anaheim: Santa Ana River Bed at Anaheim Street crossing. 61 Comment
  RSA688978  Ehrharta calycina Fred M. Roberts, David E. Bramlet 2003-4-10 5636 Orange Rancho Mission Viejo: Donna O'Neill Land conservancy, Back Road, ridge between Cristianitos Cyn, and Segunda Deshecha Canada, 1.45km WNW Gato Gate. 216 Comment
  RSA689384  Ehrharta calycina Scott D. White, Michael Honer 2003-6-12 9542 Orange Rancho Mission Viejo. Upper end of Trampas Canyon. 152 Comment
  SEINET7249216  Ehrharta erecta R. E. Riefner Jr. 2012-1 12 -15 Orange City of Dana Point, Dana Point Harbor, vicinity of Puerto Pl. and Dana Point Harbor Drive. 2 Comment
  UC552355  Elatine brachysperma H. H. Tracy 1935-4-10 Orange n Cotsa Mesa Comment
  RSA592059  Elatine brachysperma R. E. Riefner 1994-4-15 94 -320 Orange Dana Hills NW of Cooks Reservoir. Comment
  RSA731949  Elatine californica Fred M. Roberts, Carol A. Roberts 1991-5-22 4801 Orange San Joaquin Hills: Upper Laguna Cyn., Upper Laguna Lake, c.a. 3.6km N by road of El Toro Rd. & 5km ENE Signal Peak. 118 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
  SD245178  Eleocharis parishii R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49571 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway(74). San Juan Creek. Comment
  RSA723324  Eleusine coracana subsp. africana R. E. Riefner 2006-11-15 6 -677 Orange City of Irvine, Shady Canyon Rd. at Quail Hill. 35 Comment
  RSA735124  Eleusine coracana subsp. africana R. E. Riefner 2005-10-5 5 -718 Orange City of Yorba Linda, near Horseshoe Bend along the Santa Ana River. 102 Comment
  RSA743555  Eleusine coracana subsp. africana R. E. Riefner 2004-8-28 4 -407 Orange City of Fountain Valley, Newland Ave. at Edinger St. 14 Comment
  RSA108342  Elymus X gouldii Frank W. Gould 1943-4-17 2100 Orange Railroad siding 7 miles northeast of Amahim. Comment
  SD127870  Elymus condensatus Richard Marin 1971-5-11 M 71 82 Orange Corner of MacArthur Blvd. and University Drive, Irvine 0 Comment
  UCR193540  Elymus condensatus A. C. Sanders, Fred M. Roberts 2008-7-3 35666 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor 415 Comment
  UCR73122  Elymus condensatus Scott D. White 1992-9-23 839 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
  RSA591752  Elymus glaucus E. W. Lathrop 1966-4-18 6172 Orange 4 mi NE of Lake Irvine, Black Star Canyon, Cleveland National Forest, Trabuco District. Comment
  RSA751316  Elymus glaucus A. C. Sanders, Fred M. Roberts 2008-5-6 35274 Orange Lomas de Santiago, upper Limestone Canyon, 2.9 mi. NNW of El Toro 366 Comment
  UCR150908  Elymus glaucus subsp. glaucus Valerie Soza, LeRoy Gross 1999-6-10 526 Orange Santa Ana Mountains, Southwestern extension of Modjeska Peak, off dirt road to summit, off Main Divide Road 1555 Comment
  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
  RSA548858  Elymus multisetus Fred M. Roberts, Gordon Marsh 1986-6-6 2986 Orange Black Star Canyon, Black Star Canyon Rd., 2.7 km by road below summit; 3.6 km S Sierra Peak., UTM 3741900m N, 439600mE. 646 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
  UCR2375  Elymus triticoides F. M. Reed 1932-5-24 7234 Orange South Coast, San Juan Capistrano, behind beach dune Comment
  RSA39343  Emex spinosa E. L. Paddock 1943-5-26 12740 Orange Frank Anderson grove, Manchester, 1/8 mile south of Midway Drive, Anaheim. Comment
  RSA610  Emmenanthe penduliflora J. T. Howell 1927-6-9 72 Orange Botany Garden, Rancho Santa Ana. [original location] 152 Comment
  UCR191425  Emmenanthe penduliflora A. C. Sanders, Fred M. Roberts 2008-4-8 34776 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, SSE of Santiago Reservoir on Harding Truck Trail at Dripping Springs Loop, above Limestone Canyon 495 Comment
  CAS-BOT-BC131231  Encelia californica R. K. Brummitt 1998-5-23 19990 Orange Newport Beach, by marina 10 Comment
  CLARK-A1045-1004  Encelia californica George K. Helmkamp 1978-3-4 Orange Newport Beach bluff along Newport Back Bay; Newport Beach 7.5'Q Comment
  POM360026  Encelia californica Robert W. Townsend 1939-7-28 159 Orange Roadsie of Higway west of Atwood Comment
  POM48553  Encelia californica F. M. Reed 1925-5-14 4985 Orange Aliso Canon. Comment
  RSA734683  Encelia californica A. C. Sanders, Fred M. Roberts 2008-5-6 35216 Orange Lomas de Santiago, lower Hicks Canyon near Irvine Ranch gate and road junction to cement plant 180 Comment
  UCSB48067  Encelia californica Fritzke, S.; 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
  SD236344  Epilobium canum A. C. Sanders, Fred M. Roberts 2008-9-18 36084 Orange Peninsular Range; Santa Ana Mtns. Foothills: Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge. 320 Comment
  UCR220969  Epilobium canum Dick Newell, Don Millar 2010-8-3 31 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, One Cactus Trail, 1/4 mile west of Limestone Ridge Rd., 0.88 mi. west of Santiago Canyon Rd. 409 Comment
  CAS-BOT-BC166346  Epilobium canum subsp. canum Carl B. Wolf 1933-8-24 5384 Orange Santa Ana Mts. Along main divide motorway between Bedford Pk. & Santiago Pk. Comment
  RSA511  Epilobium canum subsp. canum J. T. Howell 1927-7-26 480 Orange Claymine Canon near Sierra Peak. 244 Comment
  UCR195004  Epilobium ciliatum A. C. Sanders, Fred M. Roberts 2008-8-7 35989 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
  POM187674  Epilobium ciliatum subsp. ciliatum Joseph A. Ewan 1929-6-28 3615 Orange Santiago canyon, Santa Ana Mountains. 366 Comment
  POM201877  Epilobium ciliatum subsp. ciliatum L. M. Booth 1932-6-28 1212 Orange Bolsas Marsh. Comment
  RSA496  Epilobium ciliatum subsp. ciliatum J. T. Howell 1927-7-5 267 Orange West side, Rancho Santa Ana [Botanic Garden]. 152 Comment
  RSA12  Equisetum laevigatum J. T. Howell 1927-6-6 42 Orange Santa Ana River bottom, Rancho Santa Ana 152 Comment
  UC1543035  Equisetum laevigatum Donald G. Nelson 1935-4-6 263 Orange e San Juan Capistrano (canyon 200-300 ft below main Hwy., ca. 4 mi from Summit); San Juan Canyon Comment
  UCR195014  Equisetum laevigatum A. C. Sanders, Fred M. Roberts 2008-8-7 35987 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
  SEINET1908663  Eragrostis A. C. Sanders, Fred M. Roberts 2008-1 36091 Orange Peninsular Range; Santa Ana Mtns. Foothills: Lomas de Santiago, Santiago Creek Canyon c. 0.5-0.8 miles above the highway bridge. 1000 Comment
  UCR197700  Eragrostis A. C. Sanders, Fred M. Roberts 2008-9-18 36091 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Santiago Creek Canyon c. 0.5-0.8 miles above the highway bridge 300 Comment
  CAS-BOT-BC412826  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
  RSA798101  Eragrostis mexicana subsp. virescens R. F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49567 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74) Comment
  RSA430  Eremocarpus setiger J. T. Howell 1927-9-24 742 Orange Santa Ana Botany Garden 152 Comment
  RSA436020  Eremocarpus setiger Christopher Davidson, G. Benny 1971-6-15 1553 Orange Carbon Canyon, 1 mile SW of Carbon Canyon mineral spring. Comment
  UCR144768  Eriastrum sapphirinum Scott D. White, Michael Honer 2003-5-29 9430 Orange Santa Ana Mtn foothills, Rancho Mission Viejo. Hills above Canada Gobernadora on west side of canyon, c. 1 air mile north of Ortega Hwy. 152 Comment
  RSA0121308  Eriastrum sapphirinum subsp. dasyanthum Anstruther Davidson 1920-06 s.n. Orange Laguna. Comment
  RSA0122941  Eriastrum sapphirinum subsp. dasyanthum Minor Warne 1934-4-28 s.n. Orange Ladd Canyon-Santa Ana Mts. PR8. Comment
  POM257106  Ericameria palmeri var. pachylepis C. B. Wolf 1931-10-30 2504 Orange Rancho Santa Ana, Santa Ana Canyon. 207 Comment
  RSA450872  Ericameria palmeri var. pachylepis Fred M. Roberts 1983-12-9 1151 Orange Irvine Uc, Irvine Ecological Preserve, 0.8dm SSW Campus center. 70 Comment
  POM357494  Erigeron foliosus var. stenophyllus F. R. Fosberg 1931-6-21 748 Orange Silverado Canyon. Santa Anita Mts. Comment
Read comments
Nov 26 2016
  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
  UCR188939  Eriobotrya japonica Robert DeRuff 2004-1 546 Orange Newport Beach, Upper Newport Bay, Big Canyon on north-facing bank below Park Newport Apartments 16 Comment
  CAS-BOT-BC189071  Eriodictyon crassifolium John Thomas Howell 1927-6-26 2614 Orange Claymine Canon [Canyon], N Santa Ana Mountains Comment
  SD70811  Eriodictyon crassifolium Lucille Kempers 1953-5-1 39 Orange Coal Canyon 395 Comment
  CAS-BOT-BC188114  Eriodictyon parryi P. C. Everett 1935-6-18 7216 Orange Summit of Santiago Peak, Santa Ana Mountains 1731 Comment
  RSA542526  Eriogonum elongatum Fred M. Roberts 1986-11-5 3205 Orange Santa Ana Mountains: Upper Mabey Canyon near top of Skyline Dr., 2.7 km SE Sierra Peak, NE of Oak Flat. 259 Comment
  HSC17411  Eriogonum elongatum var. elongatum J. W. Johnson 1961-3-29 Orange Newport Beach, N slope overlooking upper Newport Bay Comment
  RSA716720  Eriogonum fasciculatum Fred M. Roberts 2004-6-16 6056 Orange San Joaquin Hills: Temple Hill, slopes above Hobo Cyn., adj. to 591 Balboa Ave.; 1.0km NNE Golf Island Survey Mark. 175 Comment
  RSA734763  Eriogonum fasciculatum subsp. foliolosum A. C. Sanders, T. B. Salvato 2008-5-13 35343 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
  RSA734991  Eriogonum fasciculatum subsp. foliolosum A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35286 Orange Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir. 300 Comment
  UCR217455  Eriogonum fasciculatum subsp. foliolosum Mark A. Elvin 2003-1-26 2228 Orange South Coast, Irvine, UC Irvine Open Space Preserve, NE side, between core of UCI campus (E Peltason Dr.) and Hwy 73 69 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
  UC520304  Eriogonum fasciculatum var. fasciculatum Joseph Andorfer Ewan 1932-7-28 7705 Orange Corona del mar Comment
  CAS-BOT-BC249946  Eriogonum fasciculatum var. foliolosum John Thomas Howell 1927-6-1 2407 Orange Southern Puente Hills in the Santa Ana Canon [Canyon] 152 Comment
  UCR131886  Eriogonum fasciculatum var. foliolosum J. Mallory, V. McCoy 1995-7-3 6454- 69 Orange Santa Ana Mountains: N-facing slope in Santiago Canyon, c. 0.5 mi. east of Santiago Canyon Rd; near Irvine Park 200 Comment
  UC537258  Eriogonum gracile L. M. Booth 1933-8-26 1386 Orange Newport Lagoon Comment
  SD133035  Eriogonum parvifolium Andy C. Sander 1990-10-6 10179 Orange newport Bay, Westcliff Park area on the SW end of the bay, ca. 1 km in land of Hwy 1. 0 Comment
  UCR207545  Eriogonum parvifolium O. F. Clarke, Roger E. Reinke 2004-11-14 s.n. Orange South Coast, Newport Back Bay 3 Comment
  RSA13461  Eriogonum parvifolium var. parvifolium S. G. Stokes 1932-8-29 21 Orange Doheny's Palisades near San Clemente 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
  RSA7392  Eriogonum wrightii var. subscaposum Carl B. Wolf 1933-8-24 5404 Orange Summit of Santiago Peak, Santa Ana Mountains. 1732 Comment
  CAS-BOT-BC297325  Eriophyllum confertiflorum R. K. Brummitt; et al. 1998-5-23 19989 Orange Newport Beach, by marina; by harbour entrance 10 Comment
  HSC5622  Eriophyllum confertiflorum S. M. Clapp 1966-4-7 45 Orange 3 mi. from Modjeska Canyon towards Siverado Canyon 183 Comment
  POM49708  Eriophyllum confertiflorum L. R. Abrams 1901-06 1834 Orange Mt Santiago 1747 Comment
  RSA391773  Erodium botrys E. R. Johnson 1935-3-1 6293 Orange 1 miles west of Atwood, south side of Railroad. 91 Comment
  RSA583212  Erodium brachycarpum R. E. Riefner Jr. 1998-4-17 95 -72 Orange San Clemente State Beach. Comment
  RSA650823  Erodium cicutarium Daniel Truong 1991-5-5 9 Orange Irvine Regional Park, left field adjacent to main entrance, within 1/4 mile radius of ''closed area' . Comment
  RSA684304  Erodium moschatum Fred M. Roberts, David E. Bramlet 2003-3-13 5602 Orange Donna O Neill Land Conservancy: Flagpole Meadow, upper Shady Cyn. W of Cristianitos Canyon, 1,500m NW Sycamore Gate and 1,220m W Cristianitos Rd. 173 Comment
  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-BC41524  Erysimum capitatum Helen D. Geis 1902-1-1 528 Orange Santiago Creek. Comment
  OBI11782  Eschscholzia caespitosa Carl B. Wolf 1935-6-19 7222 Orange Santa Ana Mts, Main divide Motorway 1-2/10 mi below summit of Santiago Peak, E slope 1372 Comment
  UCR230229  Eschscholzia californica Dick Newell, Don Millar 2011-3-15 080 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Agua Chinon Wash 219 Comment
  RSA30447  Eschscholzia californica var. crocea Elisabeth Norland 1942-7-3 11282 Orange Wild nursery along W fence. Comment
  UCR50903  Eucalyptus amplifolia Dave Goodward 1987-4-16 7 Orange Irvine Ranch, Boy Scout Camp in Peters Canyon, east of Tustin and c. 1 mi NE of the Irvine Blvd/Myford Road intersection 122 Comment
  RSA0010837  Eucalyptus camaldulensis T. B. Salvato, Billy Deane 2006-10-16 1928 Orange Irvine, San Diego Creek flood control channel, between Michelson Driveand the 405 Fwy. 9 Comment
  UCR80029  Eucalyptus camaldulensis Scott D. White 1992-10-1 956 Orange City of Brea, immediately north of Carbon Canyon Road & east of Placentia Ave. c. 1 mi (airline) S-SE of Tonner Canyon. 183 Comment
  IRVC29883  Eucalyptus camaldulensis Mark A. Elvin, D. Kelch 2006-12-9 5316 Orange Irvine; San Diego Creek, edge of San Joaquin Marsh, beside University Dr., between Campus Dr. and Hwy 73. Southern Coastal 3 Comment
  RSA0012602  Eucalyptus globulus Fred M. Roberts, Karlin G. Marsh 1988-4-25 3928 Orange San Joaquin Hills: Irvine coast, ca 1.3 km SW Pelican Hill. 43 Comment
  UCR197708  Eucalyptus polyanthemos A. C. Sanders, Fred M. Roberts 2008-9-18 36079 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge 330 Comment
  POM50213  Eucrypta chrysanthemifolia Helen D. Geis 1902-1 513 Orange Santiago Creek. Comment
  UC537165  Eucrypta chrysanthemifolia var. chrysanthemifolia L. M. Booth 1932-5-19 1063 Orange Newport Beach Comment
  LA209966  Eucrypta chrysanthemifolia var. chrysanthemifolia W. E. Pequegnat; 1939-4-8 Orange Comment
  UCR86018  Euphorbia Scott D. White 1992-11-24 974 Orange Vicintiy of Brea, immediately north of Carbon Canyon Road & east of Placentia Ave. 1 mi (airline) S/SE of Tonner Canyon. 183 Comment
  RSA220976  Euphorbia crenulata E. W. Lathrop 1966-4-6 6143 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  POM11888  Euphorbia misera P. A. Munz s.n. Orange Three Arches; Laguna Beach Comment
  RSA0073646  Euphorbia misera Fred M. Roberts 2010-3-12 7175 Orange Southeast Coast: DANA POINT HEADLANDS: Harbor Point Park, South of Green Lantern and west of Dana Point Harbor, c.a. 150 meters SE Interpretive Center. 50 Comment
  UCR240164  Euphorbia misera R. E. Riefner Jr. 2012-12-5 12- 587 Orange South Coast, city of Dana Point, Dana Point Harbor, Dana Harbor Drive near Cove Road 9 Comment
  UCSB52452  Euphorbia misera Roberts, Fred 1983-3-10 Orange Dana Point Headlands: south of Scenic Dr., 0.3 km. W Dana Point Harbor; 0.8 km. S Richard Henry Dana School 60 Comment
  RSA752715  Euphorbia peplus Fred M. Roberts, Sandy Leatherman, Jennifer Pareti 2009-4-14 7151 Orange Dana Point Headlands: Dana Strand Beach and slopes above beach, 0.8 km WNW Marine Institute at Dana Point Harbor. CNLM Dana Point Preserve. 3 Comment
  UCR103162  Euphorbia peplus Scott D. White 1997-3-28 4849 Orange Santa Ana Mountains, Above Modjeska Canyon, proposed water tank site. 488 Comment
  RSA680738  Euphorbia polycarpa Scott D. White 2003-3-21 8818 Orange Santa Ana Mountain Foothills: Rancho Mission Viejo. East-facing slopes above an unnamed tributary to San Juan Creek. 122 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
  UCR274180  Euphorbia polycarpa Dick Newell, Don Millar 2015-10-13 410 Orange Peninsular Range; Santa Ana Mtns., Limestone Canyon on Limestone Ridge, 0.14 mile south of Cactus Canyon Road 427 Comment
  UCD170890  Euphorbia serpens O. F. Clarke 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
  JEPS46994  Eustoma exaltatum Laura O. Dodge 1920-12-5 Orange Olive; Santa Ana Canyon Comment
  UCR191422  Festuca myuros A. C. Sanders, Fred M. Roberts 2008-4-8 34772 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, SSE of Santiago Reservoir on Harding Truck Trail at Dripping Springs Loop, above Limestone Canyon 495 Comment
  UCR192479  Festuca myuros A. C. Sanders, Fred M. Roberts 2008-3-25 34519 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  UCSB47619  Festuca myuros Roberts, Fred 1980-4-3 Orange Hills; 1.0km NE Dana Hills High School; Dana Point 75 Comment
  UCSB47953  Festuca temulenta Roberts, D. 1980-5-4 Orange 8 km N. Northern tip of Thunderbird Homes; Dana Point 61 Comment
  UCR269242  Ficus carica R. E. Riefner Jr. 2015-8-27 15- 361 Orange South Coast, city of Newport Beach, south of Poppy Street/Ocean Blvd., Buck Gully, Little Corona Beach 7 Comment
  RSA0113947  Ficus microcarpa R. E. Riefner Jr. 2015-7-18 15 -198 Orange City of Costa Mesa, Anton Blvd. on ramp to 405 Freeway, ca. 0.3 mi from interesction of Bristol St at Sunflower Ave. 11 Comment
  UC2046888  Ficus microcarpa R. E. Riefner Jr. 2015-8-27 15 -359 Orange City of Newport Beach, Corona del Mar, on Marguerite Ave. between Fifth Ave. and Fourth Ave. Comment
  CAS-BOT-BC414247  Ficus rubiginosa R. E. Riefner, Jr. 2011-8-25 11 -119 Orange City of Laguna Beach, Aliso Creek Park, rocky and bluff between Aliso Beach Park and West St. 7 Comment
  RSA649064  Filago arizonica D. E. Bramlet 2000-4-17 2986 Orange West of Blind Cyn. and North of Irvine Park. The site is 1.9 km west of Blind Canyon and 366m north of Irvine Park. This locality is 31m southwest of the MWD access road. 268 Comment
  IRVC25411  Filago californica Fred M. Roberts, Wayne Ferren 1987-4-8 3360 Orange Upper Newport Back Bay, west side, North Star Beach, 0.8km N Coney Island, Newport Beach 0 Comment
  RSA743373  Filago californica Fred M. Roberts 2008-4-9 6853 Orange Dana Point: Dana Point Headlands, CNLM Preserve near Outlook 2, 0.7 km W Marine Institute (Dana Point Harbor). 52 Comment
  JEPS12254  Foeniculum vulgare Lawrence M. Booth 1932-8-5 1346 Orange Newport Beach Comment
  UCR222860  Foeniculum vulgare T. B. Salvato 2010-10-27 5132 Orange South Coast, Dana Point Headlands, Hilltop Park, north of Scenic Dr. and west of Green Lantern St., overlooking Dana Point Harbor 84 Comment
  POM201618  Foeniculum vulgare L. M. Booth 1932-8-5 1346 Orange West Newport Beach. Comment
  IRVC26714  Fouquieria diguetii Mark A. Elvin, Jenny Liou, Jill Carpenter, Josephine Nguyen 2004-3-8 3155 Orange UCI Arboretum Southern Coastal 15 Comment
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Aug 18 2009
  CAS-BOT-BC63070  Frangula californica subsp. californica P. C. Everett 1935-6-17 7137 Orange Santa Ana Mts., Coldwater Canyon, 1/2 mi. above Glen Ivy Resort. 457 Comment
  SBBG92713  Frangula californica subsp. californica R. Moran 1975-7-18 22596 Orange bottom of upper Trabuco Cyn 725 Comment
  SBBG27470  Frangula californica subsp. cuspidata P. C. Everett 1935-6-18 Orange summit of Santiago Pk 1731 Comment
  SD120876  Frangula californica subsp. cuspidata Reid Moran 1975-7-18 22596 Orange Bottom of Trabuco Canyon, Santa Ana Mountains 725 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
  RSA391401  Frankenia grandifolia Joseph A. Ewan 1932-7-28 7701 Orange Corona Del Mar Comment
  RSA0055057  Frankenia grandifolia Jim Shevock 1970-10-19 522 Orange Newporft Back Bay. 3 Comment
  PASA433  Frankenia grandifolia var. campestris Frank W. Peirson 1924-8-29 Orange 4 miles south of Santa Ana Comment
  CAS-BOT-BC223804  Frankenia salina Joseph Andorfer Ewan 1932-7-28 7701 Orange Corona del Mar Comment
  CAS-BOT-BC223805  Frankenia salina Frank W. Peirson 1924-5-31 4659 Orange Laguna Canon [Canyon] Comment
  IRVC24106  Frankenia salina Fred M. Roberts 1985-9-6 2220 Orange Laguna Beach; Sycamore Hills along Laguna Cyn Rd; N of jct with El Toro Road. Southern Coastal 75 Comment
  JEPS30104  Frankenia salina L. M. Booth 1932-7-27 1324 Orange Comment
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Nov 11 2011
  LA103547  Frankenia salina Barry A. Prigge; 1983-12-17 5530 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
  SD239771  Frankenia salina Mark A. Elvin 2004-5-2 3402 Orange UTM in Supplement. Southern Coastal: Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7 km (air) NNW UC Irvine campus center. 3 Comment
  UCR89689  Frasera parryi Don Pendleton 1992-5-16 92- 18 Orange Santa Ana Mtns., Cleveland National Forest, NW of El Cariso, on trails near Falcon Group Camp 823 Comment
  HSC16189  Fraxinus dipetala S. M. Clapp 1966-4-10 33 Orange 10 mi. into Silverado Canyon 183 Comment
  UCR234154  Fraxinus dipetala Dick Newell, Judy Booth 2012-3-25 232 Orange Peninsular Range; Santa Ana Mtns., Maple Springs Road, 1.5 miles above Maple Springs entrance 615 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
  RSA0027770  Fraxinus dipetala Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49687 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  SBBG128669  Fraxinus dipetala R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49687 Orange Sierra Peak; Santa Ana Mtns 900 Comment
  CHSC27882  Fremontodendron mexicanum Mike Cecchini 1978-3-23 2 Orange Ca. .5 km ne of Tucker Wildlife Sanctuary and 1 km se of Modjeska Reservoir, 20.5 km se of Tustin. 450 Comment
  RSA749488  Fritillaria biflora Fred M. Roberts, Linda Farley 2008-3-28 6822 Orange Santa Ana Mtns.: Upper Weir Cyn., east fork along ridge just west of SR241, 3.4 km E Robbers Peak, Irvine Land Conservancy. 457 Comment
  RSA0036644  Fritillaria biflora Robt. Allen 2009-3-29 s.n. Orange Peninsular Ranges; Santa Ana Mountains regions: Near Santiago Canyon. Rancho Sonado (Orange County Department of Education). Entrance is along Santiago Canyon Road, 0.23 miles NW of turnoff to Williams Canyon, 1.55 air miles SE of turnoff to Silverado, Canyon. Wild Bill Trail. 364 Comment
  SEINET10492275  Fuchsia hybrida David B. Dunn 1971-8-13 Dunn 18111 Orange Cultivated plants at costa mesa. Comment
  SEINET10837687  Fuchsia hybrida David B. Dunn 1971-8-13 Dunn 18122 Orange Cultivated plants vicinity of laguna beach. Comment
  POM265787  Fumaria parviflora Vesta Newsom Griffith 1943-3-21 s.n. Orange Near Katella School, 2.5 miles southwest of Anaheim Comment
  RSA567  Funastrum cynanchoides var. hartwegii J. T. Howell 1927-6-3 19 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  UCR281491  Funastrum cynanchoides var. hartwegii Mitch Provance 2017-6-9 617- 99 Orange Coyote Hills, North Fullerton, East side of Gilbert St., 0.5 miles ENE of intersection with Castlewood Dr. 124 Comment
  UCR132569  Gaillardia X grandiflora Robert DeRuff 2001-9-19 s.n. Orange Southern Coast, Newport Back Bay, Shellmaker Island 1 Comment
  RSA700193  Galium angustifolium L. C. Hull 1934-4-24 s.n. Orange Trabuco Canyon. Comment
  SEINET10500686  Galium angustifolium James S. Miller 1992-5-8 Miller 7450 Orange 2 mi E of the border of Cleveland National on California route 74. 310 Comment
  LA208400  Galium angustifolium Carl B. Wolf; 1933-8-24 Orange Santa Ana Mountains, Santa Ana MTs. Summit of Santiago Peak 1731 Comment
  UCSB48003  Galium angustifolium Roberts, Fred 1980-6-29 Orange Santa Ana Mtns., Viejo Canyon, 0.4km N Calif. Rte 74; 2.2km ENE San Juan Guard Station 341 Comment
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Oct 28 2018
  UCSB52456  Galium angustifolium Roberts, Fred 1983-3-10 Orange Dana Point Headlands; cliff above Dana Point Harbor, south of old Cove Rd; 0.8 km S Richard Henry Dana School 18 Comment
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Oct 28 2018
  JEPS7865  Galium angustifolium subsp. angustifolium Lawrence M. Booth 1932-6-4 1252 Orange Newport Bay Comment
  POM201752  Galium angustifolium subsp. angustifolium L. M. Booth 1932-6-4 1152 Orange Newport Lagoon. Comment
  UCR97638  Galium angustifolium subsp. angustifolium George K. Helmkamp, E. A. Helmkamp 1997-4-24 1651 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, 1.6 mi. SE of Ortega Hwy (Calif. Hwy 74) on Rd. 7-S14 549 Comment
  JEPS6601  Galium aparine Alice King April 1908 58 Orange Santa Ana River Comment
  POM367761  Galium aparine Albert J. Perkins 1923-4-27 s.n. Orange Trabuco Canyon. Comment
  RSA647956  Galium aparine Mark Breidenbaugh, Caralisa Breidenbaugh 1992-5-24 32 Orange 1000 ft. northwest of Chino Hills State Park Boundary. 244 Comment
  UCR215296  Galium parisiense Fred M. Roberts 2008-5-20 7133 Orange Lomas de Santiago, Loma Ridge, upper Limestone Canyon, 0.8 km NW of Bolero Spring and 3.1 km WNW of Bolero Lookout. Irvine Ranch Conservancy 467 Comment
  RSA702689  Galium porrigens Scott D. White, Michael Honer 2004-5-17 10390 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
  RSA732278  Galium porrigens A. C. Sanders, Fred M. Roberts 2008-4-22 35042 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
  IRVC21234  Garrya flavescens Fred M. Roberts 1984-2-12 1180 Orange Santa Ana Mtns: 0.1km SW of Falcon Group Camp; 2.0km ESE Los Pinos Peak. Peninsular Ranges 1000 Comment
  RSA5510  Gaura coccinea Carl B. Wolf 1932-7-2 3809 Orange 1.5 miles east of Brea on Cedar St. 107 Comment
  CDA5171  Gaura drummondii Johnson 1939-8-3 5 Orange Brea. 0 Comment
  POM8756  Geranium carolinianum P. A. Munz, R. D. Harwood 1920-4-24 3791 Orange Santa Ana Mountains, Sierra [Freemont] Canyon 366 Comment
  SBBG127247  Geranium incanum var. multifidum R. E. Riefner Jr. 2012-6-30 12 -285 Orange Talbert Regional Park, general vicinity of Balboa Blvd and 19th St; Costa Mesa 5 Comment
  UC2014872  Geranium incanum var. multifidum R. E. Riefner Jr. 2011-7-1 11 -78 Orange City of Laguna Beach, South Crescent Bay, vicinity of Circle Drive and Island Way. Comment
  RSA156758  Gilia angelensis D. E. Breedlove 1962-3-9 1798 Orange 4.4 miles east of San Juan Capistrano on State [hwy] 74 113 Comment
  RSA3189  Gilia angelensis C. B. Wolf 1932-3-8 2674 Orange 1/2 mile N of Corona del Mar, Newport Bay. 8 Comment
  RSA470265  Gilia capitata subsp. abrotanifolia Anstruther Davidson s.n. Orange Corona Del Mar Comment
  RSA708369  Githopsis diffusa subsp. candida Fred M. Roberts, Robert L. Allen, Chris Barnhill, Nancy Hatfield 2005-5-30 6243 Orange Modjeska Peak summit, c.a. 60m south of highest point. 1675 Comment
  UCR130350  Gloriosa superba A. C. Sanders, Mark A. Elvin 2003-10-12 27330 Orange Southern Coastal Slope, Irvine, UCI Arboretum, UCI campus near intersection of Jamboree Blvd. and Campus Dr. 15 Comment
  UC864091  Glycyrrhiza lepidota Louis C. Wheeler 1932-7-9 942 Orange 5 mi below Prado; Santa Ana River 152 Comment
  RSA734849  Gnaphalium californicum A. C. Sanders, Mitch Provance 2008-5-20 35411 Orange Lomas de Santiago area, Santiago Creek Canyon, c. 3/4 mile below Modjeska Canyon confluence 345 Comment
  POM4593  Gnaphalium chilense P. A. Munz 1918-5-4 2185 Orange Laguna Comment
  POM196473  Gnaphalium chilense J. T. Howell 1927-10-29 3183 Orange Bryant Ranch near Long Beach. 15 Comment
  RSA683220  Gnaphalium leucocephalum Scott D. White, Matt Carlton 2003-11-20 9874 Orange Santa Ana Mountain foothills: San Juan Creek in San Juan Capistrano. 37 Comment
  UCR126410  Gnaphalium leucocephalum Fred M. Roberts 2003-7-24 5963 Orange South Coast, San Juan Capistrano, San Juan Creek, c. 0.1 km NE of La Novia Bridge 27 Comment
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Jun 4 2013
  RSA701689  Gnaphalium luteoalbum Fred M. Roberts, David E. Bramlet 2003-6-6 5899 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. 149 Comment
  RSA857  Gnaphalium palustre J. T. Howell 1927-7-18 431 Orange Santa Ana River bottom, Rancho Santa Ana. 152 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
  CDA6068  Gnaphalium stramineum Walden 1951-5-24 Orange Dr. Beebe, southwest corner Gilbert & Orange, Anaheim. 0 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
  IRVC4034  Grindelia camporum var. bracteosa A. S. Boughey 1968-7-16 422 Orange road to Signal Peak. San Joaquin Hills Comment
  POM156464  Grindelia camporum var. bracteosa L. R. Abrams 1903-4-19 3273 Orange San Juan Comment
  RSA17586  Grindelia camporum var. bracteosa C. B. Wolf 1936-7-8 8101 Orange Coast Hwy, Western end of Newport Bay. 9 Comment
  UCR113450  Grindelia camporum var. bracteosa R. E. Riefner Jr. 2000-7-8 20- 626 Orange Peninsular Range, Santa Ana Mountains, North Ranch Policy Plan Area, on ridgetop overlooking W fork of Fremont Canyon, east of Main Divide Road along the powerline 396 Comment
  UCR119299  Grindelia camporum var. bracteosa R. E. Riefner Jr. 2000-7-8 20- 626 Orange Peninsular Range, Santa Ana Mountains, North Ranch Policy Plan Area, on ridgetop overlooking W fork of Fremont Canyon, east of Main Divide Road along the powerline 396 Comment
  CAS-BOT-BC305203  Grindelia hirsutula J. T. Howell 1931-6-1 6624 Orange San Clemente Comment
  CAS-BOT-BC305209  Grindelia hirsutula John Thomas Howell 1931-6-1 6623 Orange San Clemente Comment
  JEPS57260  Grindelia hirsutula L. R. Heckard and R. C. Bacigalupi 1968-5-8 1836 Orange on terrace back of ocean just n of Doheny Beach Park Dana Point 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
  CAS-BOT-BC302136  Gutierrezia sarothrae John Thomas Howell 1927-9-24 3111 Orange Hills on n. side of Santa Ana Canon [Canyon] 213 Comment
  RSA581359  Hainardia cylindrica R. E. Riefner 1995-6-28 95 -256 Orange Along margins of vernal pools. Surf Beach, San Onofre State Beach. Comment
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Nov 19 2013
  UCR132982  Harpagonella palmeri Adrian Wolf 2000-4-10 451 Orange Santa Ana Mtns., North Ranch Policy Plan Area, North Baker Canyon Road 351 Comment
  RSA871  Hazardia squarrosa var. grindelioides J. T. Howell 1927-10-22 758 Orange Bluffs near eastern boundary, Rancho Santa Ana 213 Comment
  IRVC23184  Hedera canariensis G. Reynolds 1987-7-7 4 Orange Costa Mesa, at corner of Mesa St. and Santa Ana Ave. Comment
  CAS-BOT-BC306304  Hedypnois cretica C. B. Wolf 1938-5-2 9406 Orange City of Fullerton, Francis St., 1200 block E. side in vacant lot 60 Comment
  CAS-BOT-BC306305  Hedypnois cretica C. B. Wolf 1938-5-2 9406 Orange City of Fullerton, Francis St., 1200 block E. side in vacant lot 60 Comment
  SD42290  Hedypnois cretica C. B. Wolf 1938-5-2 9406 Orange Fullerton, Francis Street, 1200 block, east side in vacant lot 60 Comment
  IRVC15334  Helenium puberulum A. S. Boughey 1968-7-9 395 Orange Santa Ana mtns: upper Santiago Canyon. Peninsular Ranges Comment
  POM6080  Helenium puberulum D. L. Crawford 1916-7-26 s.n. Orange Aliso Canyon. Comment
  UCR224033  Helianthemum scoparium Justin M. Wood 2010-3-31 1448 Orange Santa Ana Canyon, Santa Ana River floodplain, 0.25 mi north of Coal Canyon wildlife corridor, west of Green River Golf Course on bluff south of the river 122 Comment
  CAS-BOT-BC305442  Helianthus annuus E. L. Paddock 1943-5-29 12745 Orange South Pacific Electric Railway, 1/4 mile northwest of Brea-Olinda crossing Comment
  CAS-BOT-BC305444  Helianthus annuus Ira L. Wiggins 1966-5-18 20662 Orange Along Associated Road between Yorba Linda Blvd. and Imperial Highway Comment
  IRVC777  Helianthus annuus D. Christy 1973-8-1 Orange Newport Back Bay. L.J. Colin MACF 20494. Newport Beach: Bayside Dr. Newport Beach Comment
  IRVC780  Helianthus annuus R. D. Haywood 1965-5-12 Orange Comment
  UCD132887  Helianthus annuus Ira L. Wiggins 1965-11-6 20339 Orange Kraemer Oil Estates, near well no. 14, near end of county road leading to Rancho santa Ana (extension of Orangethorpe Blvd.) Comment
  UCSB48037  Helianthus annuus Roberts, Fred 1981-9-26 Orange Laguna Beach: Pacific Coast Highway, 1.1km SE El Moro School near Abalone Point 39 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
  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
  UCR11214  Helianthus ciliaris D. O. Clark 1969-7-14 s.n. Orange Veeh Ranch, 2 mi west of El Toro 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
  CLARK-A1528-1910  Helianthus gracilentus John C. Roos 1937-5-10 2086 Orange Santa Ana Mountains Comment
  IRVC14819  Helianthus gracilentus A. S. Boughey 1968-7-9 401 Orange Santa Ana mtns: upper Santiago Canyon. Peninsular Ranges Comment
  RSA874  Helianthus gracilentus J. T. Howell 1927-7-3 256 Orange Claymine Canyon near Sierra Peak. 305 Comment
  UC1069469  Helianthus gracilentus A. Lewis 1934-5-1 431 Orange Cleveland National Forest, Elsinore Quadrangle, Los Pinos Pe Comment
  UCR193414  Helianthus gracilentus A. C. Sanders, Fred M. Roberts 2008-6-17 35513 Orange Peninsular Range; Santa Ana Mtns., middle section of Weir Canyon, SSE of Walnut Canyon Reservoir 225 Comment
  UCR193781  Helianthus gracilentus A. C. Sanders, Fred M. Roberts 2008-7-3 35696 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along Windy Ridge Rd. at hairpin turn/road junction below huge sandstone boulder (visible on Google Earth), 1.2 mi. SE of Walnut Canyon Reservoir 285 Comment
  RSA0022445  Helianthus gracilentus R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49783 Orange Santa Ana Mountains: Trabuco Canyon Comment
  RSA30668  Hemizonia australis L. C. Wheeler 1932-6-25 849 Orange 5 miles west of Santa Ana. 22 Comment
  RSA539398  Hemizonia australis D. E. Bramlet 1990-11-3 2064 Orange W side Upper Newport Back Bay, ca 50 m NW of the Delhi channel. Population ca 100 m SE of end of University Dr. 23 Comment
  RSA594889  Hemizonia australis Fred M. Roberts 1992-9-9 4847 Orange Irvine: San Joaquin Freshwater Marsh, 2.0 km NW University of California Irvine campus center 2 Comment
  RSA596143  Hemizonia australis C. S. Jones 1996-9-16 13 Orange Seal Beach, Hellman Ranch Site, located west of Seal Beach Boulevard, S of Los Alamitos Retarding Basin, E of Haines Cooling Channel, and N of Gum Grove Park. Comment
  CLARK-A1528-238  Hemizonia fasciculata Cesareo Perez 1971-5-18 19 Orange Villa Park Comment
  IRVC17976  Hemizonia fasciculata K. Marsh 1980-5-8 Orange Pelican Point. Crystal Cove State Park Comment
  POM5000  Hemizonia fasciculata H. M. Hall 1906-6-19 7411 Orange Gypsum, Santa Ana Canyon 122 Comment
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Sep 4 2011
  POM5971  Hemizonia fasciculata D. L. Crawford 1915-09 504 Orange Huntington Beach. Comment
  RSA734120  Hemizonia fasciculata A. C. Sanders 2008-4-29 35142 Orange Peninsular Range;Santa Ana Mtns.: Lomas de Santiago, western end of Loma Ridgeon road to sheriff's training facility, c. 1.5 mi. SW of Santiago Reservoir 335 Comment
  POM360305  Hemizonia kelloggii M. B. Dunkle 1938-6-23 5383 Orange San Juan Canyon. Comment
  UCR248971  Hemizonia parryi subsp. australis Jeremiah George, Audrey J. George 2013-11-21 s.n. Orange Los Alamitos, adjacent to Los Alamitos Racetrack, north end of Katella Ave. at junction with Enterprise Dr. 9 Comment
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May 15 2019
  SD40680  Hesperocyparis forbesii Carl B. Wolf 1935-1-2 Orange Santa Ana Mountains, slopes of Sierra Peak, west of Claymine Canyon along road to peak 669 Comment
  CAS-BOT-BC143750  Heteromeles arbutifolia Carl B. Wolf 1932-12-19 4430 -A Orange 1/2 mi. from Skyline Drive on firebreak road to Sierra Peak, Santa Ana Mts. Comment
  UC527322  Heteromeles arbutifolia Carl B. Wolf and B. D. Stark 1932-12-19 Orange 0.5 mi from Skyline Drive (on firebreak road to Sierra Peak); Santa Ana Mts. 762 Comment
  UC860401  Heteromeles arbutifolia C. B. Wolf and B. D. Stark 1932-12-19 4430 A Orange 1/2 mi from Skyline Drive on Firebreak Road to Sierra Peak (Santa Ana Mountains); , Firebreak Road 762 Comment
  UCD113321  Heteromeles arbutifolia K. M. Meyer; A. Townesmith and T. Scott 2007-3-10 3 Orange Cleveland National Forest, 0.5 mi. N. Main Divide Rd./NF3S04, off Hwy. 74. Elsinore Mountains, ridge top. 917 Comment
  UCSB47998  Heteromeles arbutifolia Roberts, Fred 1980-7-7 Orange Santa Ana Mtns., San Juan Canyon, Hwy 74, 2.4km ENE San Juan Guard Station; 0.3km W Bench Mark 1100 345 Comment
  CAS-BOT-BC318908  Heterotheca grandiflora John Thomas Howell 1927-9-24 3112 Orange North side of Santa Ana Canyon 365 Comment
  SEINET11266845  Heterotheca grandiflora R. Nelson, Baumann; Kondratieff; Sargent 1988-1-12 5117 Orange San Juan Creek at Lower San Juan Campground.; 0 366 Comment
  RSA0075805  Heterotheca grandiflora D. M. McF 1956-4-11 5 Orange Moulton Ranch, South Coast. 152 Comment
  SD81198  Heterotheca grandiflora Darley F. Howe 1971-10-25 Orange Near the corner of Brookhurst and Lincoln Avenue, Anaheim. Comment
  CAS-BOT-BC55404  Hirschfeldia incana Alice Eastwood 1936-4-5 s.n. Orange Santa Ana. Bixby Botanic Garden. Comment
  RSA416  Hoita macrostachya J. T. Howell 1928-7-6 1029 A Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  RSA7325  Hoita macrostachya E. R. Johnson 1933-7-6 5168 Orange 1/2 mile south of Mexican houses, Rancho Santa Ana 122 Comment
  IRVC18680  Hoita orbicularis Karlin G. Marsh 1981-5-1 s.n. Orange Main Divide [Truck] Trail above Maple Springs. Santa Ana Mountains 1341 Comment
  RSA172272  Holodiscus discolor Robert F. Thorne 1963-7-26 32826 Orange Trabuco District, Santa Ana Mts., Cleveland National Forest. 1159 Comment
  RSA7466  Holodiscus discolor Carl B. Wolf 1933-8-24 5390 Orange Summit of Santiago Peak, Santa Ana Mountains. 1707 Comment
  SD40737  Holodiscus discolor E. R. Johnson 1933-6-22 5000 Orange Rancho Santa Ana, Santa Ana Canyon, NW corner of ranch, 1/4 Mi. E, 1/2 mi. S 305 Comment
  RSA542405  Holodiscus discolor var. franciscanus Fred M. Roberts Jr., R. E. Riefner 1988-7-19 4120 Orange Modjeska Peak, west slope, along old abandoned road, 0.2 km west summit 1592 Comment
  RSA0027774  Holodiscus discolor var. franciscanus Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49690 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  RSA597730  Hordeum depressum D. E. Bramlet 1996-4-20 2458 Orange Marsh adj. to Upper Newprot Bay, approx. 122m southeast of the end of University Dr. and 15.2m west of the Delhi channel., UTM 37 23 830mN, X 4 18 180m E 1 Comment
  UCR104647  Hordeum depressum D. E. Bramlet 1996-4-20 2458 A Orange Marsh adjacent to Upper Newport Bay, c. 122m SE of the end of University Dr. and 15.2 m west of the Delhi channel Comment
  RSA642531  Hordeum intercedens D. E. Bramlet 1998-5-20 2622 Orange San Juan Hills, 488m west of La Pata Ave. and 1.22km north of Prima Deshecha Canada. In a blue-line drainage, 457m east of the old ridgeline road., UTM 11S 04 42 339mE X 37 06 310mN 149 Comment
  RSA655235  Hordeum intercedens D. E. Bramlet 1998-5-21 2626 Orange On slope adjacent to a tributary of Segunda Deshecha Canada, approximately 610m north of the existing access road (Telaga Valley Dr.) and 2.9 km north of Avenida Pico;, The site is approximately 1.93 km west of Cristianitos Canyon & 640m west of Wilson Camp Road. UTM 11S 04 45 670mE X 37 04 912mN 201 Comment
  UCR85724  Hordeum marinum Scott D. White 1993-4-28 1282 Orange Pacific slope, Tustin Marine Corps Air Station, NW of Peters Canyon Channel, between Moffett Dr. & Warner Comment
  RSA735167  Hordeum murinum A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35278 Orange Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir 300 Comment
  RSA697739  Hordeum murinum Elisabeth Norland 1929-3-16 s.n. Orange Santa Ana Co. Club. Comment
  UCR99555  Hordeum murinum subsp. leporinum B. G. Pitzer 1996-4-30 2799 A Orange San Joaquin Hills, Crystal Cove State Park, south of City of Irvine on State Hwy 1 (Pacific Coast Hwy) 15 Comment
  IRVC20520  Horkelia cuneata subsp. puberula Fred M. Roberts 1983-9-26 1114 Orange Lion Canyon, Chiquito Basin Trail, 3.3km NNE Lower San Juan Picnic Ground; 4.3km SSE Los Pinos Peak. Santa Ana Mountains 810 Comment
  POM305048  Horkelia cuneata subsp. puberula Henry J. Ramsey 1937-1-9 374 Orange San Juan Canyon 152 Comment
  CAS-BOT-BC537314  Horkelia cuneata var. puberula Philip A. Munz 1936-4-20 14606 Orange Mt. Olympus, Laguna Beach 152 Comment
  POM48470  Hydrocotyle umbellata F. W. Peirson 1924-10-19 5237 Orange Wintersberg Comment
  RSA80332  Hydrocotyle verticillata J. T. Howell 1927-7-5 2658 Orange Santa Ana River bottom, Rancho Santa Ana 152 Comment
  UC1228876  Hydrocotyle verticillata Peter H. Raven 1961-10-15 16858 Orange dyke along rd. to Yorba Linda (just n. of U.S. Hwy. 91) 114 Comment
  SD260970  Hypericum canariense R. E. Jr. Riefner 2010-6-9 10 56 Orange City of San Juan Capistrano, La Novia Ave. at Valle Rd. 45 Comment
  UCSB56516  Hypericum canariense Roberts, Fred 1983-5-26 Orange Dana Point Headlands; 0.5km NW Dana Point Harbor; 0.4km S Richard Henry Dana School; on south side of Pacific Coast Highway 22 Comment
  RSA743384  Hypochaeris glabra Fred M. Roberts 2008-5-27 7008 Orange Dana Point: Dana Point Headlands, CNLM Preserve near NE Gate, 0.5 km W Marine Institute (Dana Point Harbor). 75 Comment
  RSA749428  Hypochaeris glabra Fred M. Roberts 2008-4-14 6892 Orange Santa Ana Mtns.: Upper Weir Cyn., east fork, 3.4 km E Robbers Peak, Irvine Ranch Conservancy. 433 Comment
  UCR191464  Hypochaeris glabra A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34650 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
  SD247408  Ipomoea cairica R. E. Riefner Jr. 2012-11-27 12 563 Orange City of Laguna Beach, Southe Crescent Beach, Circly Way near Cliff Drive. 3 Comment
  UCR240185  Ipomoea cairica R. E. Riefner Jr. 2012-11-27 12- 563 Orange South Coast, city of laguna Beach, South Crescent Beach, Circle Way near Cliff Drive 3 Comment
  UCR141342  Iris pseudacorus Robert DeRuff 2000-1 524 Orange Southern Coast, Newport Beach, Newport Back Bay, 23rd Street Creek on W side of the bay 12 Comment
  CAS-BOT-BC315732  Isocoma menziesii B. Pitzer; T. Tennant 1997-11-8 3377 Orange Pelican Point Area, grassland area between Pacific Coast Hwy. and the bike trail, Crystal Cove State Park 30 Comment
  SD124238  Isocoma menziesii var. menziesii C. W. Tilforth 1976-10-21 1225 Orange Slopes above Santa Ana River Canyon on Rancho Santa Ana Comment
  CAS-BOT-BC311654  Isocoma menziesii var. vernonioides Peter H. Raven 1957-9-28 11368 Orange N. limits of Surfside Comment
  CAS-BOT-BC311655  Isocoma menziesii var. vernonioides David D. Keck 1932-9-30 1906 Orange Dana Point, near San Juan Capistrano Comment
  OBI28466  Isocoma menziesii var. vernonioides J. & B. Sample, B. Sample 1981-8-12 5589 Orange Near Orange County line on hwy 74 610 Comment
  RSA5380  Isocoma menziesii var. vernonioides B. D. Stark 1932-12-30 4459 Orange Rancho Santa Ana, 1/4 mile W of Roundtop. 457 Comment
  RSA640310  Isocoma menziesii var. vernonioides L. C. Wheeler 1931-6-8 s.n. Orange Balboa Comment
  RSA702808  Isocoma menziesii var. vernonioides Scott D. White 2004-7-7 10600 Orange South Coast: Laguna Niguel. 61 Comment
  UC1118854  Isocoma menziesii var. vernonioides A. Lewis 1934-4-1 396 Orange San Joaquin Hills Corona Quadrangle Comment
  UC892011  Isocoma menziesii var. vernonioides Carl B. Wolf 1932-6-28 3807 Orange on Bixby Ave; Bryant Ranch 91 Comment
  UCR138330  Isolepis carinata R. E. Riefner Jr. 2000-7-10 20- 641 Orange Nature Reserve of Orange Co., Los Trancos Canyon, east of Pelican Hill Comment
  UC72699  Isomeris arborea E. A. Zumbro 1902-1 372 Orange Comment
  CAS-BOT-BC324739  Iva axillaris Carl B. Wolf 1932-6-28 3804 Orange Bryant Ranch, edge of field on Bixy Ave. 228 Comment
  SEINET4691552  Iva hayesiana R. E. Riefner Jr. 2013-1 13 -206 Orange City of Hunington Beach, N of Pacific Coast Highway along Santa Ana River trail. W side Santa Ana River 7 Comment
  POM122750  Jaumea carnosa Marcus E. Jones 1924-8-26 s.n. Orange Newport. Comment
  RSA701954  Jepsonia parryi Fred M. Roberts, Robert L. Allen 2004-1-16 6021 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, Cristianitos Cyn., 0.63 km SSW Gato Gate and 0.23km W of Cristianitos Rd. 107 Comment
  RSA0011059  Juglans californica I. L. Wiggins 1966-5-11 20660 Orange Carbon Canyon about 1 mile above its mouth. Comment
  SEINET13942199 Image available Juglans californica B. D. Stark 1933-1 5553 Orange Rancho Santa Ana, Santa Ana Canyon, along irrigation canal 100 yds E of school, upper sonoran life zone, prop. Number 2048. 400 ft. 122 Comment
  RSA0025286  Juglans hindsii R. E. Riefner Jr. 2011-4-22 11 -34 Orange City of Laguna Beach, Laguna Canyon, Laguna Wilderness Park, Stagecoach Trail, ca. 0.15 mi N of El Toro Rd. on W side of Laguna Canyon Rd. 86 Comment
  UCD169219  Juglans hindsii R. E. Riefner Jr. 2015-7-2 15- 191 Orange City of Laguna Beach, Laguna Canyon, ca. 0.25 mi S of El Toro Rd. on E side of Laguna Canyon Rd. 75 Comment
  SD248445  Juglans regia R. E. Riefner Jr. 2011-8-25 11 115 Orange Trabuco Canyon, Trabuco Canyon Road, ca. 1 mile NW of O'Neill Regional Park. 319 Comment
  UCR158462  Juncus Adrian Wolf 1998-5-27 318 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
  RSA795708  Juncus W. R. Ferren 1991-12-2 EPA- 18 Orange Cook Creek, tributary to Aliso Creek, San Juan Capistrano. Comment
  OBI2855  Juncus acutus subsp. leopoldii L. Neuenschwander 1970-8-20 63 Orange Ca. 4 mi S of Seal Beach, NE of Pacific Coast hwy at Bolsa Chica Salt marsh 0 Comment
  POM201610  Juncus acutus subsp. leopoldii L. M. Booth 1932-5-24 1102 Orange Newport Bay Comment
  RSA107  Juncus acutus subsp. leopoldii J. T. Howell 1927-6-30 242 Orange Bryant Ranch near Long Beach. 15 Comment
  UC1280019  Juncus acutus subsp. leopoldii Peter H. Raven 1957-9-28 11401 Orange just n Huntington Beach Comment
  UCSB36209  Juncus acutus subsp. leopoldii Ferren, Wayne; Whitmore, S.; Millett, B. 1980-8-27 Orange Newport Backbay just W of Backbay Drive; ca. 3 km V NE of Rt. 1; Newport Beach Comment
  RSA192266  Juncus bufonius E. W. Lathrop 1966-4-10 6157 Orange Silverado Canyon, Santa Ana Mountains, Cleveland Nat l. Forest, Trabuco District. 366 Comment
  RSA644960  Juncus effusus subsp. austrocalifornicus R. E. Riefner 2000-1-24 20 -109 Orange NCCP North Ranch Policy Plan Area: Fremont Canyon: N of Santiago Creek & immediately N. of major stream fork. 305 Comment
  UCR247891  Juncus patens Fred M. Roberts 2012-7-18 7662 Orange SAN JOAQUIN HILLS: Newport Beach, Buck Gully, along Buck Gully Trail, about 0.7 km from the north terminus of Poppy Street and 1.8 km WNW summit of Pelican Hill 52 Comment
  RSA683076  Juncus phaeocephalus Scott D. White, Amanda Duchardt 2003-5-1 9151 Orange Canada Gobernadora. 122 Comment
  UCR193071  Juncus sphaerocarpus A. C. Sanders, Mitch Provance 2008-5-20 35421 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago area, Santiago Creek Canyon, c. 3/4 mile below Modjeska Canyon confluence 355 Comment
  RSA754064  Juncus textilis A. C. Sanders, Fred M. Roberts 2008-7-16 35855 Orange Lomas de Santiago, upper Hangmans Tree Canyon 395 Comment
  RSA17462  Juncus xiphioides Percy C. Everett 1936-9-19 8272 Orange Santa Ana Mountains, Silverado Canyon. 0.7 mile E of Shadybrook Resort. 701 Comment
  SEINET10929342  Juniperus David B. Dunn 1971-8-13 Dunn 18109 Orange Cultivated plants at Costa Mesa, California. 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
  UCR240182  Juniperus rigida var. conferta R. E. Riefner Jr. 2011-7-1 11- 81 Orange South Coast, city of Newport Beach, beach area between Shorecliff Road and Cameo Shores Road 18 Comment
  POM4196  Keckiella antirrhinoides I. M. Johnston 1918-5-26 s.n. Orange Hills south of Ontario 1 mile west of Santa Ana Canon.. 366 Comment
  UC1063331  Keckiella antirrhinoides R. St. John 1931-3-31 201 Orange Mouth of Silverado Canyon; Corona Quad. 365 Comment
  UC1280772  Keckiella antirrhinoides H. E. McMinn 1935-6-22 3920 Orange e base of n end Santa Ana Mountains Comment
  UCSB52861  Keckiella antirrhinoides Roberts, Fred; Marsh, K. 1984-4-21 Orange Santa Ana Mts; Lost Women Canyon at confluence with Silverado Canyon; 2.2km WSW Bald Peak; 2.2km SE Bedford Peak 625 Comment
  SBBG66451  Keckiella antirrhinoides subsp. antirrhinoides M. N. Ackley -May-1925 1081 Orange Silverado Cyn Comment
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May 21 2011
  SD245484  Keckiella antirrhinoides var. antirrhinoides Robert Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49601 Orange Santa Ana Mountains: rocky ravine tributary to San Juan Canyon, along Ortega Highway (74) about 2 miles above San Juan Fire Station. Comment
  CAS-BOT-BC235720  Keckiella cordifolia Carl B. Wolf 1932-7-2 3822 Orange Carbon Canyon, 1/8 mi. below La Vida Springs 213 Comment
  JEPS13626  Keckiella cordifolia Peter Kamb 1948-6-19 1100 Orange Holy Jim Canyon; Santa Ana Mts. 609 Comment
  NY790209  Keckiella cordifolia D. C. Michener 1980-7-14 3704 Orange Santa Ana Mountains. Starr Ranch Audubon Sanctuary. Crow Creek, ca. 1.3 miles north of confluence with Bell Canyon. Comment
  RSA293304  Keckiella cordifolia D. C. Michener 1980-5-15 3662 Orange San Juan River drainage. Northwest facing slope in chaparral along unnamed creek in sect 34-35 (Sitton Peak Quadrangle). 500 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
  RSA718970  Kickxia elatine Fred M. Roberts, Robert L. Allen 2006-10-8 6410 Orange San Juan Capistrano: San Juan Creek Flood Control Channel, c.a. 0.2 to 0.3km N Stonehill Dr. bridge and 1.1km SSE Marco Forster Jr. High Sch. 4 Comment
  RSA683072  Koeleria macrantha Fred M. Roberts 2003-3-13 5592 Orange Donna O'Neill Land Conservancy: Ridge west of Christianitos Canyon, 1,320m NW Sycamore Gate and 880m W Cristianitos Rd., ( 33 deg 29' 32N, 117 deg 34' 18W; [UTM 11S-04 46 917mE, 37 05 804mN 179 Comment
  RSA749490  Koeleria macrantha Fred M. Roberts, Linda Farley 2008-3-28 6824 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
  UCR132992  Koeleria macrantha Adrian Wolf 2000-1 457 Orange Santa Ana Mtns., North Ranch Policy Plan Area, tributary to Blind Canyon, NW of coal mine 305 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
  CDA35534  Koelreuteria bipinnata D. G. Kelch, Mark Elvin 2006-12-9 6 .556 Orange Irvine. University Dr along tidal creek just E of I-73. 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
  UCR236678  Koelreuteria paniculata Fred M. Roberts, Sandra L. Leatherman 2008-9-17 7100 Orange Peninsular Ranges, Yorba Linda: Santa Ana River Canyon, Santa Ana River, 0.7 km W Gypsum Cyn. Rd. bridge, south of La Palma Ave. 107 Comment
  RSA5937  Lactuca serriola C. B. Wolf 1932-7-7 3839 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
  UCSB47627  Lamarckia aurea Roberts, Fred 1980-4-3 Orange Hills, 1.5 km. ENE Dana Hills High School, Dana Point 85 Comment
  RSA651779  Lamarckia aurea Bill Amling 1948-5-2 5 Orange 10681 Flower St. Stanton. 242 Comment
  UCSB49039  Lamium amplexicaule Martincich, M. 1980-3-12 Orange On a cow trail on Franklin Ranch, Goleta 137 Comment
  UCR166703  Lantana camara Scott D. White, Jennifer H. Jones 2005-3-31 10854 Orange South Coast, City of Laguna Beach. 549 Nyes Place. Proposed home site on c. 0.5 acre. 91 Comment
  UCR186591  Lantana montevidensis Robert DeRuff 1998-3-3 509 Orange Southern Coast, Newport Beach, Newport Back Bay, flats below intersection of Back Bay Dr. and Eastbluff Dr. 1 Comment
  UCD132262  Lasiospermum bipinnatum Peter Evans 2013-3-23 s.n. Orange Niguel Botanical Preserve located at 29751 Crown Valley Parkway, Laguna Niguel. 99 Comment
  CAS-BOT-BC338906  Lasthenia californica Baker 1904-4-1 4088 Orange Anaheim Comment
  UCR209358  Lasthenia coronaria Fred M. Roberts, D. E. Bramlet, Megan Lulow 2008-4-4 6844 Orange Lomas de Santiago, Loma Ridge, at Calochortus Ridge near East Lomas Ridge Road, 0.7 km east of Bee Peak, Irvine Ranch Conservancy 509 Comment
  RSA2821  Lasthenia glabrata subsp. coulteri E. R. Johnson 1931-4-7 s.n Orange east end camp. Bryant Ranch, Los Alamitos. 9 Comment
  SD248339  Lasthenia glabrata subsp. glabrata R. E. Riefner Jr. 2013-3-10 13 39 Orange City of Lake Forest, along El Toro Rd., at Destry Rd. 210 Comment
  RSA2082  Lasthenia gracilis C. B. Wolf 1931-3-6 1847 Orange Trabuco Canyon, 1 mile above Trabuco Oaks, W slope of Santa Ana Mts 518 Comment
  RSA545171  Lasthenia gracilis Timothy S. Ross, Amy Kendall 1992-4-15 6194 Orange San Clemente Island. Central upland portion of the island, SW of 'Ledge'; 236 degrees SW, ca 170m distant from summit of 'Ledge.' 393 Comment
  IRVC21512  Lathyrus tingitanus T. W. Mulroy 1973-5-21 1866 Orange San Juan Canyon, Hwy 74, ca. 3.2km E San Juan Guard Station. Santa Ana Mountains 315 Comment
  JEPS57259  Lathyrus tingitanus L. R. Heckard and R. C. Bacigalupi 1968-5-8 1837 Orange just n of Doheny Beach Park (Dana Point); Dana Point Comment
  UCR193068  Lathyrus vestitus A. C. Sanders, T. B. Salvato 2008-5-13 35334 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Canyon at mouth of Hangman Tree Canyon and lower Hangman Tree Cyn, c. 1/2 mile below Modjeska Canyon confluence 366 Comment
  RSA1702  Lathyrus vestitus subsp. alefeldii C. B. Wolf 1931-3-6 1835 Orange Trabuco canyon, 1/2 mile above Trabuco Oaks, west slope of Santa Ana Mountains. 457 Comment
  RSA90347  Lathyrus vestitus subsp. alefeldii F. W. Peirson 1925-4-11 5731 Orange slope above mill, in Silverado Canyon, Santa Ana Mountains 914 Comment
  IRVC2214  Lathyrus vestitus subsp. laetiflorus M. Savage 1965-3-1 Orange Corona del Mar, Golf Course. Newport Beach Comment
  JEPS55289  Lathyrus vestitus var. alefeldii Frank W. Peirson 1925-4-10 Orange Silverado Canyon 457 Comment
  UC484235  Lathyrus vestitus var. alefeldii C. B. Wolf 1931-3-6 Orange 0.5 mi above Trabuco Oaks (w slope of Santa Ana Mts.); Santa Ana Mts., Trabuco Canyon 457 Comment
  UCR141338  Laurus nobilis Robert DeRuff 1990-3-31 391 Orange Southern Coast, Newport Beach, Newport Back Bay, East Bluff 9 Comment
  RSA799619  Lavatera cretica Justin M. Wood 2011-4-12 3662 Orange South Coast: City of Costa Mesa. Fairview Park, just WNW of Marison Special Education Center. 24 Comment
  RSA747636  Layia platyglossa Fred M. Roberts 2008-5-16 6983 Orange Dana Point: Dana Point Headlands, CNLM Preserve, north of Marguerita Drive, 0.5 km WNW Marine Institute, Dana Point Harbor. 75 Comment
  RSA17056  Layia platyglossa subsp. campestris Percy C. Everett 1935-4-15 6462 Orange 8/10 mile E of Atwood on S side of Santa Fe RR. 107 Comment
  RSA608238  Lepechinia cardiophylla Steve Boyd, Bart O'Brien 1998-1-13 10072 Orange Santa Ana Mountains: north end of the range, saddle between Mabey and Fremont canyons, along Main Divide Road ( 3S04) ca. 1.0 mi N of Oak Flat. 884 Comment
  IRVC26689  Lepechinia ganderi Mark A. Elvin 2004-4-4 3231 Orange UCI Arboretum Southern Coastal 15 Comment
  RSA716659  Lepidium didymum Fred M. Roberts 2005-5-13 6188 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
  IRVC1102  Lepidium lasiocarpum C. Hooven 1965-4-1 Orange Jamboree Rd. Newport Beach 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
  UCR266422  Lepidium latifolium D. E. Bramlet 2009-11-27 4427 Orange South Coast, San Diego Creek between Irvine and Newport Back Bay 8 Comment
  IRVC1093  Lepidium nitidum D. Orr 1965-4-10 Orange Trabuco Road, 3mi E El Toro Marine Base. El Toro Comment
  UCR192487  Lepidium nitidum A. C. Sanders, Fred M. Roberts 2008-3-25 34515 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  IRVC1108  Lepidium nitidum B. Mawdsley 1965-3-24 Orange Corona del Mar, Narcissus and 5th. Newport Beach Comment
  RSA629716  Lepidium pinnatifidum L. C. Wheeler 1947-5-4 6476 Orange 4 1/2 miles south of Santa Ana: South Main Street extension, 0.8 miles south of Newport Avenue. Comment
  SD215443  Lepidium ruderale Louis C. Wheeler 1947-5-4 6476 Orange 4.5 miles south of Santa Ana; South Main Street Extension, 0.8 mile south of Newport Avenue. Comment
  UCR222386  Lepidium virginicum var. robinsonii Mark A. Elvin 2003-1-26 2245 Orange South Coast, Irvine, UC Irvine Open Space Preserve, NE side, between core of UCI campus (E Peltason Dr.) and Hwy 73 69 Comment
  CDA23619  Leptochloa uninervia A. Thomas, Mark A. Elvin 2006-9-23 609233 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
  UCR192117  Leptodactylon californicum A. C. Sanders, Fred M. Roberts, Amber O'Neal, D. E. Bramlet 2008-5-9 35302 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along old dirt road, c. 1.25 mi. ESE of Walnut Cyn Reservoir 340 Comment
  RSA72060  Leptosiphon floribundus Robert L. Dressler 1949-4-24 755 Orange Lower San Juan camping grounds. Comment
  RSA587876  Leptosiphon liniflorus Fred M. Roberts 1990-5-9 4625 Orange Rancho Mission Viejo; Christianitos Canyon, TRW Lease Holding, 4.3 km NE Clemente Survey Marker. 91 Comment
  RSA764445  Leptosiphon parviflorus Doris Bowers 1971-4-19 1698 Orange Black Star Canyon Indian Site 762 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
  RSA0011212  Leptosiphon parviflorus Eileen McCollum 1932-4-3 s.n. Orange Near Mojeska's, Santa Ana Mts Comment
  OBI82197  Lessingia filaginifolia Andrew C. Sanders, Fred M. Roberts 2008-8-7 35970 Orange Peninsular Range; Santa Ana Mtns.: lower Weir Canyon, at narrow gorge c. 0.6 mi. above mouth of cyn at Irvine Ranch gate (Orange/Black Star Cyn. 7.5' Qs.) 185 Comment
  UCR102031  Lessingia filaginifolia B. G. Pitzer 1997-3-25 3009 Orange San Joaquin Hills, Crystal Cove State Park, Pelican Point Area, grassland between Pacific Coast Hwy and the bike trail 30 Comment
  RSA739779  Leymus condensatus A. C. Sanders, Fred M. Roberts 2008-7-3 35666 Orange Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor 365 Comment
  RSA0023265  Leymus triticoides R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49775 Orange Santa Ana Mountains: Trabuco Canyon Comment
  RSA799625  Lilaea scilloides Justin M. Wood 2011-4-12 3663 Orange South Coast: City of Costa Mesa. Fairview Park, just WNW of Marison Special Education Center. 24 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
  CDA23090  Limonium binervosum Mark A. Elvin, D. G. Kelch 2006-12-9 5307 Orange Southern Coastal; Newport Backbay; Big Canyon, lower end. Comment
  UCR149414  Limonium duriusculum Fred M. Roberts 2000-6-5 5338 Orange Chino Hills, Yorba Linda, along Hidden Hills Dr. near Sunbeam Lane, on ridge above Box Canyon 376 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
  RSA716344  Limonium ramosissimum R. E. Riefner 2006-8-11 6 -386 Orange Upper Newport Bay, E of Back Bay - Bayside Dr. flats along Big Canyon Creek. 5 Comment
  CDA1081  Limonium sinuatum D. G. Kelch 2006-12-9 6 .545 Orange Along Newport Back Bay Dr. in side canyon. Comment
  RSA783375  Linanthus J. D. Olmsted 1959-4-17 399 Orange Rattlesnake Rock north of Hidden Ranch along Black Star Canyon Road: 0.5 mile WSW of Beacon Pines Ranch. 747 Comment
  RSA749298  Linanthus californicus Fred M. Roberts 1999-4-22 5185 Orange Lomas de Santiago: tributary to Santiago Creek wash along spur road on ridge between Limestone Cyn. and Santiago Creek wash opposite Williams Cyn., 1.9 km SE Silverado Sch. and 2.2 km NNW Bolero Lookout. 395 Comment
  OBI43755  Linanthus californicus subsp. glandulosus E. B. Higgins 1948-3-21 Orange San Juan Camp Comment
  UCR266297  Linanthus dianthiflorus D. E. Bramlet, J. E. Harrison 2008-4-3 4155 Orange Peninsular Range; Santa Ana Mountains, South Bee Canyon, Bowerman landfill site, 1.2 km south of the Bee Canyon access road, and 122 m west of the active landfill 224 Comment
  RSA3188  Linanthus dianthiflorus subsp. dianthiflorus C. B. Wolf 1932-3-8 2675 Orange 1/2 mile N of Corona del Mar, Newport Bay. 8 Comment
  SD254679  Linanthus liniflorus D. E. Bramlet 2008-5-20 4278 Orange Peninsular Range: Santqa Ana Mountains Foothills: Northern Loma Ridge, 305 m west of Hwy 241, 975 m south of Santiago Canyon Road, 61 m north of access road (Black Star Canyon 7.5'Q) 355 Comment
  UCR128169  Linanthus liniflorus Scott D. White, Michael Honer 2003-5-29 9424 Orange Santa Ana Mtn foothills, Rancho Mission Viejo. Hills above Canada Gobernadora on west side of canyon, c. 1 air mile north of Ortega Hwy. 152 Comment
  UCR177690  Linanthus liniflorus Fred M. Roberts, D. E. Bramlet 2003-5-1 5693 Orange Coastal Plains & Basins; South Coastal Plain region, Rancho Mission Viejo: Donna O'Neill Land Conservancy, Cristianitos Cyn., 0.56 km SSW Gato Gate and 0.21 km west of Cristianitos Rd. 96 Comment
  RSA698401  Linanthus parviflorus Dorothy Sammis s.n. Orange Trabuco Canyon. Comment
  RSA700539  Linaria canadensis var. texana Frances Battey s.n. Orange Orange Co. Park. Comment
  RSA594875  Lindernia dubia Fred M. Roberts Jr., Wayne Ferren 1991-12-1 4830 Orange San Josquin Hills: Laguna Canyon, Upper Laguna Lake, 3.5 km N junction El Tprp Rd. , 4.9 km ENE Signal Peak; 113 Comment
  RSA632420  Lithophragma affine Valerie L. Soza, LeRoy Gross 1999-6-10 521 Orange Santa Ana Mountains: Southwestern extension of Modjeska Peak, off dirt road to summit, off Main Divide Road. 1554 Comment
  UCR193805  Lobelia dunnii var. serrata A. C. Sanders, Fred M. Roberts 2008-7-16 35837 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Dripping Springs off Limestone Canyon, c. 7.5 mi. ESE of Tustin 391 Comment
  UCR281546  Logfia filaginoides Mitch Provance, Jeremiah George 2017-3-20 317- 117 Orange West Coyote Hills, Fullerton, vicinity of Utility Access Roads E of Gilbert Street and N of Castlewood Dr., on land previously occupied by oil fields. 137 Comment
  CHSC35329  Lolium multiflorum James Henrickson 1972-10-21 8063 Orange Newport Beach, So. of Jamboree Rd., E. of Irvine Coast Country Club near U.C. Irvine. In grassland eventually to be used for large Newport Beach Business Center. 45 Comment
  UC729655  Lolium multiflorum Carl B. Wolf 1932-6-13 3717 Orange Fullerton; Malvern and Nicholas Avenues 53 Comment
  UCR2522  Lolium perenne F. M. Reed 1927-9-19 5472 Orange Near Peralta Heights 91 Comment
  UCR86995  Lomatium dasycarpum B. G. Pitzer, Stu Hemstreet 1992-5-27 1956 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
  CAS-BOT-BC241459  Lonicera involucrata var. ledebourii Agnes M. Bowman 1899-6-1 s.n. Orange Orange Comment
  RSA696519  Lonicera subspicata Minor Warne 1934-4-28 s.n. Orange Ladd Canyon-Santa Ana Mts. PR8. Comment
  SEINET10465145  Lonicera subspicata James S. Miller 1992-5-8 Miller 7451 Orange 2 mi E of the border of Cleveland National on California route 74. 310 Comment
  RSA5268  Lonicera subspicata var. denudata C. B. Wolf 1932-12-19 4434 Orange Main divide of Santa Ana Mts. between Sierra Peak and Skyline Drive 762 Comment
  RSA697961  Lotus americanus Minor Warne 1934-5-19 s.n. Orange Live oak Canyon. Comment
  RSA406162  Lotus hamatus M. B. Dunkle 1934-6-18 3987 Orange San Juan Canyon; Southern Coastal 305 Comment
  UCR173936  Lotus heermannii A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33005 Orange Peninsular Range; Santa Ana Mtns., San Juan Canyon, from Lower San Juan Picnic Area to c. 1 mile downstream, parallel to Hwy 74 and near Riverside Co. line 396 Comment
  RSA748261  Lotus purshianus A. C. Sanders, Mitch Provance 2008-5-20 35394 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
  UC1607985  Lotus purshianus var. purshianus Donald G. Nelson 1935-7-5 345 Orange E. Elm St. Brea (along roadside in dry hayfield) Comment
  RSA735165  Lotus salsuginosus A. C. Sanders, Fred M. Roberts 2008-5-6 35232 Orange Lomas de Santiago, lower Hicks Canyon, just above tollway (Hwy 241) crossing on Irvine Haul Rd., near debris basin. 216 Comment
  POM201833  Lotus scoparius L. M. Booth 1932-5-12 1025 Orange Newport Bay. Comment
  RSA498846  Lotus scoparius E. S. Spalding 1923-12-1 20335 Orange San Juan Capistrano, sea shore. Comment
  RSA90319  Lotus scoparius F. W. Peirson 1923-3-26 4093 Orange Canada Salada. Comment
  UCR191227  Lotus scoparius subsp. brevialatus A. C. Sanders 2008-4-29 35121 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, western end of Loma Ridge on road to sheriff's training facility, c. 1.5 mi. SW of Santiago Reservoir 335 Comment
  IRVC15131  Lotus scoparius subsp. scoparius A. S. Boughey 1968-7-9 404 Orange Santa Ana mtns: upper Santiago Canyon. Peninsular Ranges Comment
  RSA752849  Lotus scoparius subsp. scoparius Fred M. Roberts 2009-4-21 7155 Orange Dana Point Headlands: southern cliffs, 0.7 km W Marine Institute at Dana Point Harbor. CNLM Dana Point Preserve. 3 Comment
  HSC98231  Lotus strigosus S. M. Clapp 1966-4-3 5 Orange Union Oil Prop., just S of Imperial Hwy. and E of Associated Rd. 61 Comment
  RSA390  Lotus strigosus J. T. Howell 1928-4-7 899 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  RSA406321  Lotus strigosus M. B. Dunkle 1933-3-5 3087 Orange San Juan Canyon 304 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
  UCR220080  Lotus strigosus Dick Newell, Don Millar 2010-3-2 007 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lakeview Rd. 0.3 mi. east of Irvine Lake dam 305 Comment
  IRVC22008  Lotus strigosus var. strigosus Fred M. Roberts, Gordon Marsh 1985-3-12 1502 Orange mesa west of Ave. Pico and north of El Camino Real, 3.2km SSE Coyote Bluff; 0.6km E Bench Mark 16 (sect. 32), San Clemente 37 Comment
  IRVC24533  Lotus strigosus var. strigosus Fred M. Roberts, Gordon Marsh 1986-2-28 2636 Orange Mission Viejo: N of Oso Parkway; 4.2km NNE Saddleback Community College. Southern Coastal 200 Comment
  RSA542579  Lotus strigosus var. strigosus Fred M. Roberts 1988-3-15 3847 Orange Rancho Mission Viejo: Verdugo Canyon, 2.6 km ENE Point Rancho Survey Mark 149 Comment
  RSA90341  Lotus wrangelianus F. W. Peirson 1922-5-18 4083 Orange Santa Ana River Canyon Comment
  RSA749847  Lupinus bicolor D. Bramlet, Weena Sangkatavat 2008-3-27 4130 Orange Bee Canyon, Bowerman landfill site. 528 m S of the Bee Canyon access road and 440 m W of the active landfill. Comment
  SEINET7062957 Image available Lupinus bicolor A. G. Vestal 1947-6-12 s.n. Orange About 0.2 mile west of Quail Valley at Menifee Corner and about 6.8 miles east of Lake Elsinore. UTM Zone 11, 476547mE, 3729356mN. (WGS84/NAD83). 491 Comment
  UCR192505  Lupinus bicolor A. C. Sanders, Fred M. Roberts 2008-3-25 34552 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  UCR97639  Lupinus bicolor George K. Helmkamp, E. A. Helmkamp 1997-4-24 1654 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, 1.6 mi. SE of Ortega Hwy (Calif. Hwy 74) on Rd. 7-S14 549 Comment
  IRVC2301  Lupinus bicolor subsp. umbellatus John Schram 1965-5-1 HS 0420 Orange Corona Del Mar, Corona Highlands Southern Coastal Comment
  UC527213  Lupinus excubitus C. B. Wolf 1931-5-20 2056 Orange along Santa Fe R.R. 1 mi w Esperanza (Santa Ana Canyon); Santa Ana Canyon 106 Comment
  UCR237921  Lupinus excubitus Dick Newell, Don Millar 2012-6-5 269 Orange Peninsular Range; Santa Ana Mtns., Loma Ridge East, 0.35 mi. due east of Hicks Haul Rd. 411 Comment
  CAS-BOT-BC216670  Lupinus excubitus subsp. hallii Munz; Street; Williams 1919-5-3 2658 Orange Santa Ana Canon [Canyon] Comment
  UC82077  Lupinus excubitus var. hallii C. F. Baker 1903-4-1 4102 Orange Anaheim Comment
  RSA91198  Lupinus excubitus var. hallii F. W. Peirson 1925-4-10 5740 Orange In Silverado Canyon. 610 Comment
  UCR193933  Lupinus hirsutissimus A. C. Sanders, Fred M. Roberts 2008-7-16 35881 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Creek wash at and above the confluence of Hangmans Tree Canyon 370 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
  IRVC14759  Lupinus longifolius A. S. Boughey 1965-6-15 152 Orange Ortega highway; ca. 1.0 mile E of San Juan Guard Station. Santa Ana Mountains Comment
  RSA413758  Lupinus longifolius Samuel R. Tyson 1942-6-18 s.n. Orange San Dimas Canyon 1555 Comment
Read comments
Nov 15 2013
  RSA4866  Lupinus longifolius E. R. Johnson 1932-4-15 2957 Orange Rancho Santa Ana, 1mile NWof Roundtop (section 16) 457 Comment
  RSA749636  Lupinus longifolius D. E. Bramlet, Fred M. Roberts 2008-4-4 4173 Orange Loma Ridge, beside existing dirt access rd. 1.16km west of Hicks Haul Rd. and 1.6 km SW of Santiago Cyn Rd. 369 Comment
  UC201985  Lupinus longifolius D. L. Crawford 1916-5-10 735 Orange Laguna Canyon; Southern California 152 Comment
  RSA0059076  Lupinus longifolius CNPS Accuracy Assessment Team 2014-5-7 7176 Orange Limestone Canyon. Comment
  UCR192070  Lupinus microcarpus A. C. Sanders, Fred M. Roberts 2008-5-6 35246 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
  JEPS65473  Lupinus microcarpus var. microcarpus H. E. Malmsten 1928-4-27 Orange O Neill Ranch Comment
  RSA722341  Lupinus sparsiflorus Unspecified s.n. Orange Orange County park Comment
  IRVC2339  Lupinus sparsiflorus subsp. sparsiflorus J. Morgan 1965-4-14 s.n. Orange Laguna Canyon. Southern Coastal Comment
  IRVC24496  Lupinus succulentus Fred M. Roberts, Gordon Marsh 1986-2-28 2621 Orange Mission Viejo: N of Oso Parkway; 4.2km NNE Saddleback Community College. Southern Coastal 200 Comment
  RSA4839  Lupinus succulentus James Snow 1932-1 s.n. Orange Bryant Ranch, near Long Beach. Comment
  RSA507484  Lupinus succulentus Jeri Hirshberg 1988-6-7 s.n. Orange Santa Ana Mountains, head of Gypsum Canyon 412 Comment
  RSA734341  Lupinus succulentus A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34634 Orange Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 366 Comment
  RSA747603  Lupinus succulentus Fred M. Roberts 2000-4-27 5304 Orange Lomas de Santiago: Lomas Ridge, Agua Chinon Wash, 1.5 km S Bolero Spr. and 2.1 km WSW Bolero Lookout. 281 Comment
  RSA88903  Lupinus succulentus E. K. Balls 1954-3-1 18850 Orange Botanic Garden, Santa Ana Canyon Comment
  SDSU5016  Lupinus succulentus R. M. Beauchamp 1968-2-17 769 Orange On north side of Trabuco Rd., opposite Catholic cemetery. Comment
  UCR191451  Lupinus succulentus A. C. Sanders, Fred M. Roberts 2008-4-8 34756 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, SSE of Santiago Reservoir on Loma Ridge Spur Rd., above Dripping Springs Loop Rd. 457 Comment
  UCR209374  Lupinus succulentus Fred M. Roberts 2008-3-25 6792 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
  UCR250869  Lupinus succulentus Dick Newell, Don Millar 2014-4-15 364 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Agua Chinon wash 100 yards south of Box Canyon Road 396 Comment
  RSA414397  Lupinus truncatus Fay A. MacFadden 1931-3-1 2939 Orange Laguna Beach, Orange County Comment
  RSA735204  Lupinus truncatus Keith E. Hoffmaster 1934-4-22 177 Orange Santa Ana Mountains Comment
  UCSB47609  Lupinus truncatus Roberts, Fred 1980-5-3 Orange Main Divide Truck Trail, 0.4 km. NNE Falcon Group Camp (near Blue Jay CG); Santa Ana Mountains 1067 Comment
  IRVC19963  Lupinus truncatus Gordon A. Marsh, Karlin G. Marsh 1983-4-14 s.n. Orange Laguna Canyon: Sycamore Hills, N sector, road edge Southern Coastal 146 Comment
  SEINET7062958  Lychnis coronaria A. G. Vestal 1947-6-12 s.n. Orange Santiago Creek Valley 0.4 mile below Silverado Canyon Fork. UTM Zone 11, 438682mE, 3733866mN. (WGS84/NAD83). 384 Comment
  RSA699024  Lycium J. R. Bruff 1927-3-16 2 -R Orange Newport Bluff Comment
  CAS-BOT-BC233467  Lycium californicum Frank W. Peirson 1924-2-10 4526 Orange Balboa, near bridge 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
  UCR240186  Lycium californicum R. E. Riefner Jr. 2012-11-24 12- 558 Orange South Coast, city of San Clemente, Presidio Ave. c. 0.2 mi south of Ave. Pico 34 Comment
  RSA656  Lycopus americanus J. T. Howell 1927-9-24 753 Orange Santa Ana River Bottom, Rancho Santa Ana 152 Comment
  OBI33516  Lysimachia arvensis Nancy J. Moriarty 1973-5-27 730527 -3 Orange San Clemente State Beach 1 mi S of the end of Ave Califia in the sand below the bluffs Comment
  UCR193929  Lythrum californicum A. C. Sanders, Fred M. Roberts 2008-7-16 35843 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Dripping Springs off Limestone Canyon, c. 7.5 mi. ESE of Tustin 391 Comment
  RSA0014841  Lythrum californicum Robert F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49631 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs Comment
  UC185712 Image available Malacothamnus densiflorus J. C. Nevin Orange San Juan Capistrano Comment
  RSA7394  Malacothamnus densiflorus var. densiflorus Carl B. Wolf 1933-8-24 5385 Orange along road south of Bedford Peak on main divide. 1098 Comment
  CAS-BOT-BC206260  Malacothamnus fasciculatus John Thomas Howell 1927-6-20 2557 Orange North side of Santa Ana Canyon 243 Comment
  RSA433312  Malacothamnus fasciculatus Unspecified 1918-1 s.n. Orange Laguna Comment
  RSA433315  Malacothamnus fasciculatus F. R. Fosberg 1931-6-21 S- 5096 Orange Lower Santiago Canyon. Comment
  RSA433316  Malacothamnus fasciculatus Albert J. Perkins 1923-6-28 s.n. Orange Laguna Cliffs Comment
  RSA433317  Malacothamnus fasciculatus Thekla Mohr 1917-04 1931 Orange Laguna. Comment
  RSA59172  Malacothamnus fasciculatus E. K. Balls 1950-7-17 14928 Orange Native to Botanic Garden. 183 Comment
  POM8303  Malacothrix glabrata P. A. Munz, R. D. Harwood 3384 Orange Temescal Canyon. 366 Comment
Read comments
Jul 6 2014
  CDA1074  Malacothrix saxatilis D. G. Kelch 2006-12-9 6 .54 Orange Along Newport Back Bay Dr. in side canyon. Comment
  CDA23124  Malacothrix saxatilis Mark A. Elvin, D. G. Kelch 2006-12-9 5328 Orange Southern Coastal; Newport Backbay; along Bayside Drive ca. 500 meters northeast of road to CA Department of Fish and Game office. Comment
  UCR3184  Malacothrix saxatilis Chuck Elliott 1964-5-2 s.n. Orange Los Angeles Basin Region, Carbon Canyon 61 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
  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
  UCR130491  Malacothrix saxatilis var. saxatilis R. E. Riefner Jr. 2000-9-19 00- 739 Orange South Coast, Dana Point, west of Pacific Coast Hwy, vicinity of Salt Creek Park and Ritz Carlton Hotel 15 Comment
  POM6233  Malacothrix saxatilis var. tenuifolia D. L. Crawford 740 Orange Aliso 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
  CDA25903  Malephora crocea Mark A. Elvin, D. G. Kelch 2006-12-9 5297 Orange Southern Coastal; Newport Backbay; Big Canyon, lower end. Comment
  CAS-BOT-BC167851  Malosma laurina John Thomas Howell 1927-7-16 2784 Orange Hills on north side of Santa Ana [Canon] Canyon 152 Comment
  CAS-BOT-BC167852  Malosma laurina John Thomas Howell 1927-7-24 2826 Orange Sandy floor of Claymine [Canon] Canyon, n. Santa Ana Mts. 152 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
  UCR228797  Malosma laurina Dick Newell, Don Millar 2011-5-3 138 Orange Coastal Plains, San Joaquin Hills, Laguna Canyon Wilderness Park, Willow Trail 160 Comment
  SD43546  Malva assurgentiflora Carl B. Wolf 1944-11-29 11497 Orange Open field in vacant lots, southeast of Costa Mesa. 22 Comment
  RSA732087  Malva parviflora A. C. Sanders, Fred M. Roberts 2008-3-25 34534 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills. 259 Comment
  RSA734957  Malva parviflora Keith E. Hoffmaster 1927-1-9 455 Orange Santa Ana Comment
  RSA184165  Malva parviflora I. L. Wiggins 1966-3-1 20479 Orange western edge of California State College campus, Fullerton 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
  JEPS68666  Malvella leprosa Lawrence M. Booth 1932-7-21 1296 Orange Anaheim Creek Comment
  POM202030  Malvella leprosa L. M. Booth 1932-7-21 1296 Orange Anaheim Creek Comment
  POM2951  Malvella leprosa D. L. Crawford 1916-7-26 s.n. Orange Laguna Canyon Comment
  RSA77180  Malvella leprosa F. W. Peirson 1924-8-29 5068 Orange 4 miles S of Santa Ana Comment
  POM48010  Malvella leprosa I. M. Johnston 1924-8-29 s.n. Orange 4 mi S of Santa Ana Comment
  IRVC26530  Manfreda Mark A. Elvin 2004-5-22 3460 Orange UCI Arboretum Southern Coastal 15 Comment
  RSA77638  Marah macrocarpa F. W. Peirson 1924-2-10 4532 Orange Balboa Beach, mainland near bridge Comment
  RSA733980  Marrubium vulgare Keith E. Hoffmaster 1926-12-18 422 Orange Santa Ana. Comment
  RSA748270  Marrubium vulgare A. C. Sanders, Fred M. Roberts 2008-6-17 35511 Orange middle section of Weir Canyon, SSE of Walnut Canyon Reservoir 225 Comment
  UCSB39765  Marrubium vulgare Levine, N. 1977-5-1 Orange 0.25 miles west on Rosecrans Blvd. from junction of Rosecrans and Beach Blvd, Buena Park 91 Comment
  RSA791808  Marsilea drummondii R. E. Riefner Jr. 2007-9-30 7 -415 Orange City of Yorba Linda, Santa Ana Canyon, urban runoff tributary to Santa Ana River, La Palma Ave. at Via Lomas De Yorba East. 110 Comment
  RSA799622  Marsilea vestita Justin M. Wood 2011-4-12 3656 Orange South Coast: City of Costa Mesa. Fairview Park, just WNW of Marison Special Education Center. 24 Comment
  RSA594805  Marsilea vestita Fred M. Roberts, Doreen Stadlander, Ray Vizgirdas 1992-4-24 4838 Orange El Toro Marine Base: just west of Borrego Wash, 2.7 km SE Lambert Reservoir dam 166 Comment
  UCR103165  Matricaria matricarioides Scott D. White 1997-3-26 4807 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
  UCR192482  Matricaria matricarioides A. C. Sanders, Fred M. Roberts 2008-3-25 34514 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  UC1292308  Matricaria occidentalis C. L. Hitchcock and C. V. Muhlick 1964-3-17 23065 Orange 8 mi e Yorba Linda; Santa Ana Canyon Comment
  UC1075898  Matthiola incana E. K. Balls 1955-4-4 20423 Orange w end of Newport Beach Newport Beach 3 Comment
  UCSB42066  Matthiola incana McEnulty, Mary 1979-6-7 Orange Cliff on south side of Crescent Bay, Newport Beach 7 Comment
  UC1419832  Mazus pumilus G. D. Barbe 1973-8-9 1694 Orange Growing in pot with plant from Georgia: Santa Ana (Tustin); Bordier's Nursery, 7231 Irvine Blvd Comment
  POM7620  Meconella denticulata P. A. Munz, R. D. Harwood 1920-4-25 6719 Orange Shady hillside by road in Silverado Canyon, Santa Ana Mts. 549 Comment
  RSA797820  Meconella denticulata Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49809 Orange Santa Ana Mountains: Trabuco Canyon. Comment
  IRVC19532  Medicago minima R. L. Allen 1983-4-13 A 638 Orange Santa Ana; 3030 Camille St. at Arapaho. Southern Coastal Comment
  IRVC2372  Medicago polymorpha Robin Hobson 1965-4-10 s.n. Orange Santa Ana Heights; 2431 Mesa Dr. Southern Coastal Comment
  UCR103166  Medicago polymorpha Scott D. White 1997-3-26 4809 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
  UCR191419  Medicago polymorpha A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34657 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
  IRVC10699  Medicago sativa B. T. Gittins 1963-4-20 177 Orange Jamboree and Palisades. Newport Beach Comment
  UCD170853  Medicago truncatula R. E. Riefner Jr. 2011-5-20 11 -55 Orange South Coast, city of San Clemente, Avenida La Pata one block west of Calle Extremo at entrance to Richard Steed Memorial Park. 161 Comment
  UCR208445  Medicago truncatula R. E. Riefner Jr. 2007-4-1 07- 166 Orange South Coast, city of Laguna Niguel, Laguna Niguel Regional Park, general vicinity of La Paz Road at Aliso Creek 230 Comment
  UCR208447  Medicago truncatula R. E. Riefner Jr. 2008-3-24 08- 64 Orange South Coast, Rancho Santa Margarita, Tijeras Canyon, north c. 0.5 mi from Meandering Trails Road on Antonio Parkway 221 Comment
  UCR246483  Medicago truncatula R. E. Riefner Jr. 2011-5-20 11- 55 Orange South Coast, city of San Clemente, Avenida La Pata one block west of Calle Extremo at entrance to Richard Steed Memorial Park 161 Comment
  RSA746473  Medicago truncatula R. E. Riefner Jr. 2007-4-12 07 -178 Orange City of Orange, SW portion of Irvine Regional Park; Irvine Park Rd. 188 Comment
  RSA722086  Melaleuca nesophila R. E. Riefner Jr. 2007-3-18 7 -151 Orange City of Newport Beach, N shore of Newport Bay, North Star Beach, general vicinity of North Star Ln. and Polaris Dr. 9 Comment
  RSA797664  Melica frutescens R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49768 Orange Santa Ana Mountains: Trabuco Canyon Comment
  CAS-BOT-BC281592  Melica imperfecta Helen D. Geis 1902-1-1 555 Orange Unspecified Comment
  CAS-BOT-BC281594  Melica imperfecta C. L. Hitchcock 1964-3-17 23071 Orange 8 miles E of Yorba Linda, Santa Ana Canyon Comment
  CAS-BOT-BC281595  Melica imperfecta John Thomas Howell 1927-6-17 2547 Orange N side of Santa Ana Canon 152 Comment
  CAS-BOT-BC94724  Melica imperfecta R. C. Wenk; P. Hopkinson; M. Hammond; P. Brownsey 2008-3-24 718 Orange Chino Hills State Park. South Ridge Road W of San Juan Hill, going W from Equestrian Staging Area. Top of ridge 1450 Comment
  RSA403491  Melica imperfecta A. M. Johnson 1934-4-15 4416 Orange Carmen's Laguna Comment
  RSA751312  Melica imperfecta A. C. Sanders, Fred M. Roberts 2008-5-6 35265 Orange Lomas de Santiago, slope SE of road junction along ridge road, near head of Agua Chinon Canyon, 2.4 miles north of El Toro 470 Comment
  RSA773501  Melica imperfecta Fred M. Roberts 1999-5-14 5221 Orange Lomas de Santiago: Loma Ridge, Upper Limestone Canyon, 0.7 km NW Bolero Spring and 2.6 km SW Silverado School 502 Comment
  UCR100307  Melica imperfecta B. G. Pitzer 1997-4-15 3141 Orange San Joaquin Hills, Crystal Cove State Park, north of the N end of the City of Laguna Beach. Along Moro Canyon Trail, from beginning to a point c. 1.75 mi. up the canyon. 49 Comment
  RSA696596  Melica imperfecta J. Russell Bruff 1927-3-16 2 -I Orange Gun Club. Comment
  UCR173932  Melilotus albus A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33004 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
  UCR223421  Melilotus albus Dick Newell, Don Millar 2011-3-1 067 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Hicks Canyon Haul Road, above Jeffrey Rd. and below Hwy 241 crossing 175 Comment
  UCR237821  Melilotus albus Mark A. Elvin 2003-2-2 2291 Orange South Coast, San Joaquin Marsh, UCI campus SSE of intersection of Jamboree Blvd. and Campus Dr. 2 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
  IRVC2414  Melilotus indicus J. B. Anderson 1966-4-12 568 Orange Newport Beach; [Newport] Back Bay. Southern Coastal Comment
  IRVC2425  Melilotus indicus Mike McCartin 1965-5-1 s.n. Orange Newport Beach; [Newport] Back Bay. Southern Coastal Comment
  UC537000  Melilotus indicus Lawrence M. Booth 1932-5-12 1018 Orange Newport Bay Comment
  POM312088  Melilotus indicus Jane Shelton 1963-5-3 22 Orange El Morro Beach, Laguna, Alt 5ft 2 Comment
  RSA184136  Melilotus indicus I. L. Wiggins 1966-3-18 20530 Orange California State College at Fullerton. Comment
  UCSB42714  Melilotus indicus Teramura, A. 1970-4-4 Orange Along the R.R. tracts N of the Old Rancho Santa Ana Botanical Gardens 121 Comment
  CAS-BOT-BC227211  Melinis repens R. E. Riefner, Jr. 2011-8-16 11 -98 Orange Newport Beach, Orange County Parks & Recreation lands, along Newport Coast Drive, between Vista Ridge Rd. & Alteza Rd. 280 Comment
  RSA594802  Melinis repens Fred M. Roberts, Terasa Bruckenstien 1992-3-19 4837 Orange Rancho Mission Viejo, San Juan Creek east of San Juan Capistrano and just north of Ortega Highway bridge, 3.6 km. SSW Median Rancho Survey Mark., UTM Z11 37 08 900m N, 4 42 100m E 49 Comment
  RSA0127345  Mentzelia dispersa Fred M. Roberts 2016-4-29 8048 Orange Lomas de Santiago: north of Santiago Canyon Road, southwest slope of hill marked 1332 on topo maps, just west of Irvine Lake, 1.6 km S Irvine Lake dam spillway and 0.8 km NW Irvine Lake Park. 335 Comment
  RSA16494  Mentzelia dispersa Percy C. Everett 1935-6-18 7213 Orange Santa Ana Mts: Summit of Santiago Peak. 1732 Comment
  SD152813  Mentzelia micrantha Steve Boyd, Tim Ross 1992-5-20 7453 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area, western edge of the the wilderness in Lucas Canyon along a new secdtion of trail heading up major side canyon northward to Sitton Peak Road. 305 Comment
  UCR21112  Mesembryanthemum crystallinum S. Beckstrom-Sternberg 1980-5-25 52580 01 -6 Orange Jamboree Rd entrance to Hwy 73 South. Comment
  CAS-BOT-BC435275  Mesembryanthemum nodiflorum Carl B. Wolf 1927-7-23 662 Orange Juste no. of San Clemente Comment
  RSA18534  Mesembryanthemum nodiflorum C. B. Wolf 1927-7-23 663 Orange Along the coast just north of San Clemente. Comment
  RSA263682  Micropus californicus E. W. Lathrop 1966-4-10 6154 Orange Silverado Canyon Comment
  RSA683077  Micropus californicus Scott D. White, Amanda Duchardt 2003-5-1 9158 Orange Santa Ana Mtn Foothills; slopes above the west side of Canada Gobernadora and adjacent small canyon to the west. 76 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
  IRVC20789  Microseris douglasii subsp. douglasii Fred M. Roberts, S. L. Fritzke 1982-4-3 472 Orange Dana Point: hills .0 km N Dana Hills HS, 1.9 km W Marco Forester Jr HS. Southern Coastal 100 Comment
  CAS-BOT-BC322629  Microseris douglasii subsp. platycarpha Scott D. White 1998-3-16 6210 Orange Site of proposed Research Park, southwest of main campus circle, ca. halfway between Berkeley Ave. and new freeway (Bonita Canyon), USGS Tustin 7 1/2 ' quad, University of California Irvine Campus, Irvine 36 Comment
  UCR108287  Microseris douglasii subsp. platycarpha D. E. Bramlet 1993-4-4 2311 Orange UCI, adjacent to UCI Ecological Reserve, Adjacent to end of Los Trancos DR. and 500 ft. east of the reserve entrance. 46 Comment
  UCR158466  Microseris douglasii subsp. platycarpha Adrian Wolf 1998-4-20 110 Orange Santa Ana Mtns., lower Limestone Canyon near Irvine Lake, 3 km SE of Irvine Lake dam, north of Santiago Canyon Rd. 287 Comment
  UCR208155  Microseris douglasii subsp. platycarpha Fred M. Roberts, D. E. Bramlet 2003-3-27 5621 Orange Coastal Plains & Basins; South Coastal Plain region, Rancho Mission Viejo: Donna O'Neill Land Conservancy, Cristianitos Cyn., 0.79km N Sycamore Gate, 0.23km W Cristianitos Rd. 126 Comment
  UCR220126  Microseris douglasii subsp. platycarpha D. E. Bramlet 1993-3-27 2297 Orange South Coast, University of California, Irvine Campus, adjacent to the UCI Ecological Reserve, 150 ft. SW of the end of Los Trancos Dr. & 250 ft. E of the reserve entrance 61 Comment
  RSA651500  Microseris douglasii subsp. platycarpha D. E. Bramlet 2000-4-12 2972 Orange Fremont Canyon. The site is 183m south of the existing access road on the north ridge of the canyon. The site is 1.37km northeast of Santiago Creek. 336 Comment
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Feb 21 2007
  UC1577075  Mimulus A. Lewis Mar 1934 365 Orange Head of Silverado Canyon Cleveland National Forest, Corona Quadrangle Comment
  UCR228796  Mimulus aurantiacus Dick Newell, Don Millar 2011-5-3 136 Orange Coastal Plains, San Joaquin Hills, Laguna Canyon Wilderness Park, Willow Trail 160 Comment
  HSC20689  Mimulus aurantiacus subsp. australis S. M. Clapp 1966-4-10 52 Orange a few mi. S of Modjeska Canyon 122 Comment
  RSA734650  Mimulus aurantiacus var. aurantiacus A. C. Sanders, Fred M. Roberts, Amber O'Neal, D. E. Bramlet 2008-5-9 35300 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, along old dirt road c. 1.25 mi. ESE of Walnut Cyn Reservoir. 340 Comment
  POM311164  Mimulus aurantiacus var. pubescens H. E. McMinn, M. Van Rensselaer 1945-6-9 1909 -F&G Orange North slope Laguna Canyon ca. 4 mi. east of Laguna Beach. 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
  RSA131398  Mimulus aurantiacus var. pubescens E. K. Balls 1958-6-27 23279 Orange Road to Santiago Peak from Silverado Canyon, 3.8 mi. from gate. 976 Comment
  RSA647949  Mimulus aurantiacus var. pubescens Ken Greby 1985-5-17 35 Orange behind PG and E substation located 2 km. SE from Laguna Canyon Rd., on El Toro Rd., adjacent to Leisure World. Comment
  POM256713  Mimulus aurantiacus var. pubescens W. Pequegnat 1940-6-14 s.n. Orange Trabuca Pk. 1220 Comment
  RSA298665  Mimulus aurantiacus var. puniceus D. C. Michener 1980-5-15 3661 Orange San Juan River drainage. Northwest facing slope in chaparral along unnamed creek. 500 Comment
  RSA442703  Mimulus aurantiacus var. puniceus M. B. Dunkle 1934-6-18 3968 Orange Upper San Juan Canyon. 610 Comment
  UC1281141  Mimulus aurantiacus var. puniceus H. E. McMinn 1949-6-9 5617 Orange about 3 mi e San Juan Capistrano (on Highway 74) Comment
  RSA0045522  Mimulus brevipes Stephen Bruff s.n. Orange Lemon H[e]ights [a neighborhood of Tustin?]. PR8. Comment
  RSA21062  Mimulus cardinalis Ramon Valverde 1938-8-4 9442 Orange Rancho Santa Ana, Santa Ana Canyon. 122 Comment
  UCR228801  Mimulus cardinalis Dick Newell, Don Millar 2011-7-19 210 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Dripping Springs 392 Comment
  RSA759108  Mimulus cardinalis Robt. Allen, Reginald Durant 2008-9-28 s.n. Orange Laurel Spring, just below Harding Truck Trail. Survey Waypoint no. 85. Comment
  UCR230839  Mimulus clevelandii Dick Newell, Judy Booth 2011-6-19 181 Orange Peninsular Range; Santa Ana Mtns., Maple Springs Rd., Cleveland National Forest, above Santiago Canyon 1086 Comment
  JEPS87315  Mimulus clevelandii David M. Thompson 1992-5-16 1065 Orange Santa Ana Mountains, 3.9 mi N and W of Highway 74 along USFS Road 3S04 (the N side of paved loop allowing access to the main Divide Road). Comment
  JEPS10479  Mimulus guttatus Lawrence M. Booth 1932-6-7 1167 Orange Newport Bay Comment
  UCR109743  Mimulus guttatus T. W. Fisher, R. E. Orth 1964-7-1 s.n. Orange Peninsular Range; Santa Ana Mtns., San Juan Creek off the Ortega Hwy 500 Comment
  POM6462  Minuartia douglasii P. A. Munz, L. T. Street, G. Williams 1919-5-3 2615 Orange Santa Ana River Canyon. Comment
  RSA700926  Mirabilis laevis Keith E. Hoffmaster 1928-5-5 s.n. Orange San Onofre, other places Comment
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Nov 19 2013
  UCR281547  Mirabilis laevis Mitch Provance, Jeremiah George 2017-3-20 317- 123 Orange West Coyote Hills, Fullerton, vicinity of Utility Access Roads E of Gilbert Street and N of Castlewood Dr., on land previously occupied by oil fields. 137 Comment
  JEPS61334  Mirabilis laevis var. crassifolia L. M. Booth 1932-5-12 1035 Orange Newport Bay Comment
  UC1292275  Mirabilis laevis var. crassifolia C. L. Hitchcock and C. V. Muhlick 1964-3-17 Orange 8 miles E of Yorba Linda, Santa Ana Canyon Comment
  CAS-BOT-BC385102  Mirabilis linearis var. decipiens Grace Cole Fleischman 1955-9-6 s.n. Orange Vicinty of Anaheim [communicated by Grace Cole Fleischman, per label] Comment
  RSA0010773  Mollugo verticillata I. M. Johnston 1924-7-10 s.n. Orange Laguna Canyon. Comment
  RSA0010775  Mollugo verticillata P. A. Munz 1922-9-2 6357 Orange Ponds in Laguna Canyon. 46 Comment
  UCR14057  Monanthochloe littoralis Hyrum B. Johnson 1973-10-27 s.n. Orange Pacific Coast, Bolsa Chica State Beach 1 Comment
  RSA0059066  Monanthochloe littoralis CNPS Accuracy Assessment Team 2014-7-8 9567 .1 Orange Upper Newport Bay Nature Reserve. Comment
  SD119375  Monardella breweri subsp. lanceolata Reid Moran 1977-6-13 24236 Orange Willow Canyon, tributary of Laguna Canyon. 124 Comment
  RSA759531  Monardella hypoleuca Robt. Allen, D. Taylor 2008-7-19 s.n. Orange Along North Main Divide Road, 0.2 road miles S of junction with Bedford Rd, 3.5 road miles N of junction with Maple Springs Road, 0.84 air miles WNW of Bald Peak. Labeled on USGS Topo map as Water Tank, near BM 3702. 1142 Comment
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Aug 13 2012
  CAS-BOT-BC249024  Monardella hypoleuca subsp. intermedia A. C. Sanders; Mark A. Elvin 2005-9-2 31613 Orange Santa Ana Mtns.: near head of Holy Jim Canyon, a major tributary of Trabuco Canyon, along the trail in the switchbacks, below the towers on Santiago Peak 998 Comment
  SD239801  Monardella hypoleuca subsp. intermedia A. C. Sanders, Mark A. Elvin 2005-9-2 31613 Orange Santa Ana Mountains: near head of Holy Jim Canyon, a major tributary of Trabuco Canyon, along the trail in the switchbacks, below the towers on Santiago Peak (Santiago Peak 7.5'Q) 997 Comment
  UC1995348  Monardella hypoleuca subsp. intermedia Carl B. Wolf 1936-6-22 8003 Orange 3 mi above F. S. Gate (along truck trail to Modjeska Pk.); Santa Ana Mts., Santiago Canyon 762 Comment
  RSA539388  Monardella lanceolata var. lanceolata Fred M. Roberts, Carol A. Roberts 1988-6-10 4092 Orange Santa Ana Mountains: Main Divide Truck trail, Modjeska Peak, west slope, 1.1 km SW summit. 1524 Comment
  RSA16484  Monardella macrantha subsp. hallii Percy C. Everett 1935-6-19 s.n. Orange Main Divide Motorway 1.5 miles below summit of Santiago Peak, E slope. 1311 Comment
  POM147619  Muhlenbergia asperifolia F. M. Reed 1927-9-19 5470 Orange Santa Ana Canon Highway at Peralta Heights 91 Comment
  CAS-BOT-BC227250  Muhlenbergia microsperma R. E. Riefner, Jr. 2011-8-16 11 -99 Orange Newport Beach, Orange County Parks & Recreation lands, along Newport Coast Drive, between Vista Ridge Rd. & Alteza Rd. 280 Comment
  UCR192222  Muhlenbergia rigens A. C. Sanders, Fred M. Roberts 2008-5-6 35273 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, upper Limestone Canyon, 2.9 mi. NNW of El Toro 379 Comment
  UCR102000  Myoporum laetum B. G. Pitzer 1997-3-25 3034 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
  RSA0043357  Nama stenocarpa Fred M. Roberts, Laura Cohen 2012-10-31 7714 Orange San Joaquin Hills. Upper Laguna Lake, north end. Laguna Coast Wilderness Park, c. 5.1 km east northeast of Signal Hill. 113 Comment
  RSA799944  Nama stenocarpa Justin M. Wood 2011-6-28 4309 Orange South Coast: City of Costa Mesa; Fairview Park, just WNW of Marison Special Education Center. 24 Comment
  RSA562730  Narcissus tazetta Steve Boyd, Timothy S. Ross 1992-5-20 7466 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of the wilderness in Lucas Canyon along canyon floor from crossing of Lucas Canyon Trail., Upstream 1/4 mile to spur trail leading to old mining habitations in side canyon. 304 Comment
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Feb 4 2016
  CAS-BOT-BC259820  Nassella cernua Ira L. Wiggins 1966-3-16 20527 Orange Near entrance to Firestone Boy Scout Reservation Comment
  CAS-BOT-BC259967  Nassella lepida Ira L. Wiggins 1966-3-2 20487 Orange Carbon Canyon about 1.5 miles above the dam Comment
  RSA678733  Nassella lepida Fred M. Roberts, Robert Allen, Carol Roberts 2003-5-11 5862 Orange Dana Point Headlands: hilltop, 0.6km SSW Richard Henry Dana School south of Pacific Coast Highway and north of Scenic Drive., (UTM: 11S - 04 33 104mE, 37 02 642mN) 73 Comment
  UCD87925  Nassella lepida F. M. Reed 1928-7-10 6579 Orange sidewalk in Laguna Beach, El Toro. 1524 Comment
  RSA548874  Nassella pulchra Fred M. Roberts, Dar A. Roberts 1989-3-22 4216 Orange Aliso-Wood Regional Park: Lower Wood Canyon, 3.6km SSE Moulton Peak. 38 Comment
  RSA682758  Nassella pulchra Scott D. White, Amanda Duchardt 2003-3-27 8852 Orange Canyon bottom and west facing slopes above Canada Gobernadora. 91 Comment
  RSA732051  Nassella pulchra A. C. Sanders, Fred M. Roberts 2008-4-8 34741 Orange Peninsular Range: Lomas de Santiago, Loma Ridge, head of Hicks Canyon. S of Santiago Reservoir. 351 Comment
  UCD87647  Nassella pulchra R. M. L. 1942-4-16 11 Orange 8 miles east of Santa Ana. El Toro Ranch. Comment
  UCSB48062  Nassella pulchra Fritzke, Sue; Roberts, Fred 1982-4-2 Orange Laguna Niguel; 3.5 km ESE of Aliso Peak; 3.2 km SSE of Alicia Fire Station 100 Comment
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Feb 5 2015
  IRVC29691  Nasturtium Barry S. Nerhus, Mark A. Elvin 2006-11-4 3 Orange Huntington Beach; 1.5 km SW of Wintersburg, SW of jct Slater and Goldenwest; Shipley Nature Center. Southern Coastal 1 Comment
  CDA20832  Nasturtium officinale P. Akers 2006-3-25 PA 6 -06 Orange Peninsular Ranges; Yorba Linda. Santa Ana River S of La Palma Dr, 0.6-0.9 mi E of Yorba Linda Dr. 121 Comment
  RSA0037244  Nasturtium officinale Keith E. Hoffmaster 1927-6-13 s.n. Orange Santa Ana. Comment
  RSA469868  Navarretia hamata M. B. Dunkle 1934-6-18 3966 Orange Upper San Juan Canyon open road, Southern Coastal. Comment
  RSA799626  Navarretia prostrata Justin M. Wood 2011-4-12 3657 Orange South Coast: City of Costa Mesa. Fairview Park, just WNW of Marison Special Education Center. 24 Comment
  RSA588653  Nemacladus ramosissimus Fred M. Roberts 1990-5-23 4656 Orange Santa Ana Mtns.: West Fork, Upper Long Canyon, near Main Divide Truck Trail, 4.5 km SE Los Pinos Peak. 756 Comment
  UCR177440  Nemophila menziesii Scott D. White, Amanda Duchardt 2003-3-27 8865 Orange Peninsular Ranges/Santa Ana Mtns, Canyon bottom and W-facing slopes above Canada Gobernadora 183 Comment
  RSA0051320  Nemophila menziesii Ophelia Frost 1932-3-28 s.n. Orange 2 miles NW of H.B. Comment
  RSA588711  Nemophila menziesii var. integrifolia Fred M. Roberts 1990-5-22 4639 Orange Santa Ana Mountains; Upper Hot Springs canyon, just west of Falcon Group Camp, 1.9km ESE Los Pinos Peak. 994 Comment
  IRVC152  Nephrolepis cordifolia Ed Hazen 1965-4-1 HS 537 Orange Trabuco Canyon Santa Ana Mountains Comment
  IRVC154  Nephrolepis exaltata var. bostoniensis L. Burns 1965-5-1 s.n. Orange Corona del Mar; Cameo Shores. Southern Coastal Comment
  RSA0026262  Nerium oleander Fred M. Roberts 2013-6-12 7787 Orange Peninsular Ranges: Santa Ana Mtns: Lower Silverado Canyon along Silverado Creek on north side of Silverado Canyon Road, 0.6 kilometers ENE Silverado School and 1.4 kilometers up stream Black Star Road Crossing. 320 Comment
  RSA741478  Nerium oleander R. E. Riefner 2008-5-30 8 -124 Orange Near City of Orange, Santiago Creek, vicinity of Jackson Ranch Rd. , at Santiago Creek Rd., Irvine Ranch Reserve, Management Area 15. Comment
  RSA17173  Nicotiana bigelovii var. wallacei Percy C. Everett 1935-6-28 7259 Orange 8/10 of a mi. east of Atwood. S. side of R. R. tracks. 1067 Comment
  RSA701605  Nicotiana glauca Minor Warne 1934-2-1 s.n. Orange Santa Ana Mountains Comment
  RSA662130  Nicotiana glauca Daniel Curran 1981-1-25 6 Orange Coal Canyon Rd. Comment
  RSA80733  Nicotiana glauca F. W. Peirson 1923-3-18 5306 Orange Santa Ana River Canyon. 137 Comment
  RSA263685  Nolina cismontana E. W. Lathrop 1976-6-28 7506 Orange 4 miles northeast of Lake Irvine, Black Star canyon, Cleveland Nat l Forest, Trabuco dist. Comment
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Jan 2 2008
  RSA70257  Nolina cismontana Frank W. Peirson 1923-5-5 3507 Orange Trabuco Canyon, Santa Ana Mountains 518 Comment
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Jan 6 2018
  SD142047  Nolina cismontana James C. Dice 1985-5-23 593 Orange Santa Ana Mts., upper Borrego Cyn., along Santiago Cyn. Rd., 1.8 km S of Modjeska Cyn. Rd. 440 Comment
  UCR152711  Nolina cismontana James C. Dice 1985-5-23 593 Orange Santa Ana Mtns, Upper Borrego Canyon along Santiago Canyon Rd., 1.8 km south of Modjeska Canyon Rd 440 Comment
  UCR61531  Nolina cismontana James C. Dice 1986-5-31 s.n. Orange Mission Viejo, 1.2 km NW of Lake Mission Viejo, along SW edge of Vista delLago just west of the intersection w/ Canaveras 275 Comment
  RSA698083  Nolina parryi Minor Warne 1934-5-19 s.n. Orange Live oak Canyon. Comment
  UCSB47625  Nuttallanthus texanus Roberts, Fred 1980-4-3 Orange Hills, 1.0km NE Dana Hills High School; Dana Point 75 Comment
  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
  POM200890  Oenothera californica Carl B. Wolf 1931-3-25 1935 Orange along Santa Fe R. R, 1 mile west of Atwood. 91 Comment
  POM225560  Oenothera elata subsp. hirsutissima P. A. Munz 1936-6-30 14176 Orange About 6 miles south of Garden Grove. Comment
  UCR101492  Oenothera laciniata A. C. Sanders, P. J. MacKay, Tim Thomas, O. F. Clarke 1998-10-17 22268 Orange Coastal flats, Bolsa Chica, near Bolsa Bay, south of Warner Ave., east of the Pacific Coast Highway .3 Comment
  RSA698247  Oenothera pallida var. californica Unspecified s.n. Orange Santa Ana Comment
  POM202038  Oligomeris linifolia L. M. Booth 1932-5-24 s.n. Orange West Side of Newport Lagoon. Comment
  RSA80683  Oligomeris linifolia F. W. Peirson 1925-4-11 5744 Orange 5 miles southeast of Laguna Beach. Comment
  UCR204271  Oncosiphon piluliferum Scott D. White, Jeff Lincer 2003-7-7 9616 Orange Coastal Plains & Basins; South Coastal Plain region, Former El Toro Marine Corps Air Station, East of 'El Toro Marine School' and Irvine Blvd.; site of former dump 140 Comment
  UCR235514  Oncosiphon piluliferum R. E. Riefner Jr. 2011-5-20 11- 57 Orange South Coast, Newport Beach, Coastal Peak Park, East Coastal Peak Road at Ridge Park Road 305 Comment
  RSA288741  Opuntia M. G. McLeod, D. L. Walkington, D. J. Pinkava, G. Smith 1970-9-7 292 -B Orange West side of Euclid Avenue, 1/2 mi N of bastanchury, Fullerton. Comment
  SD212539  Opuntia dejecta R. E. Riefner Jr. 2006-7-23 06 312 Orange City of Newport Beach, Upper Newport Bay, North shore of Newport Bay, West circa 0.25 miles from intersection of Bayview Way and Bayview Place 10 Comment
  IRVC14193  Opuntia prolifera J. W. Johnson 1976-8-11 Orange Irvine; UCI, 300ft. south of Medical Center; on heavy clay soil in grazing climax of mediterranean grasses. Destroyed by construction. Southern Coastal Comment
  SEINET6752377 Image available Opuntia prolifera Marc A. Baker, Bruce D. Parfitt 1987-4-12 7519 Orange Newport Beach, just W of bridge to Balboa Penninsula. Comment
  SEINET6752378 Image available Opuntia prolifera Marc A. Baker, Bruce D. Parfitt 1987-4-12 7519 Orange Newport Beach, just W of bridge to Balboa Penninsula. 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
  POM317070  Opuntia vaseyi David Walkington 1963-3-20 115 Orange At end of Salt River canyon rd., ca. 1 mile west of Rt. 101A and 2 miles north of Dana Point. 46 Comment
  RSA6667  Opuntia vaseyi B. D. Stark 1933-1-17 4512 Orange 5 miles north of Laguna Beach on road to Irvine. 152 Comment
  UCR193274  Orobanche fasciculata A. C. Sanders, Fred M. Roberts 2008-6-17 35508 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, Windy Ridge Rd., saddle on ridge at head, above the Eastern Transportation Corridor 400 Comment
  RSA407957  Orthocarpus purpurascens M. B. Dunkle 1935-2-10 4337 Orange Laguna Creek; Coastal Southern California. 61 Comment
  IRVC29090  Orthocarpus purpurascens var. purpurascens Fred M. Roberts 1989-3-17 4205 Orange Aliso Canyon, 3.3km SSE Moulton Pk. Aliso-Wood Canyon Regional Park 30 Comment
  RSA658636  Orthocarpus purpurascens var. purpurascens Al Muth 1971-3-26 30 Orange Jct. Santiago Cyn. Road and Modjeska Cyn Road. 457 Comment
  CAS-BOT-BC254369  Oryza sativa Ira L. Wiggins 1965-11-6 20335 Orange Near railroad right of way, along W side of Atwood Comment
  JEPS20235  Osmadenia tenella J. Thomas Howell 1927-7-28 2867 Orange Santa Ana Canyon 182 Comment
  UCR209663  Osmadenia tenella Fred M. Roberts 2008-5-16 6984 Orange South Coast, Dana Point Headlands, Center for Natural Lands Mgmt. Preserve north of Marguerita Drive, 0.5 km west-northwest of the Marine Institute, Dana Point Harbor 75 Comment
  UCR99085  Oxalis pes-caprae Scott D. White 1993-2-17 1052 Orange Vicinity of Olinda, near city of Brea, immediately north of Carbon Cyn Rd & east of Placentia Ave.; c. 1 mi. (airline) SSE of Tonner Cyn. 183 Comment
  POM278932  Oxalis pes-caprae Lyman Benson, Cora W. Benson 1929-1-19 s.n. Orange Santa Ana 61 Comment
  SBBG105032  Oxalis pes-caprae S. Boyd, T. Ross 1994-3-22 8203 B Orange San Juan Cyn along San Juan Crk near confluence with Hot Springs Cyn 228 Comment
  POM353419  Oxalis wrightii F. R. Fosberg 1931-6-21 S 5097 Orange Silverado Canyon. Santa Anita Mts. Comment
  CAS-BOT-BC121211  Paeonia californica J. T. Howell 1927-6-6 2425 Orange Santa Ana River bottom, Santa Ana Canyon 152 Comment
  CAS-BOT-BC121212  Paeonia californica C. B. Wolf 1931-3-6 1842 Orange Trabuco Canyon, 1/2 mi. above Trabuco oaks, west slope of the Santa Ana Mtns. Upper Sonoran. 457 Comment
  CAS-BOT-BC121214  Paeonia californica C. B. Wolf 1931-3-6 1842 Orange Trabuco Canyon, 1/2 mi. above Trabuco oaks, west slope of the Santa Ana Mtns. Upper Sonoran. 457 Comment
  UC1618071  Paeonia californica Donald G. Nelson 1935-7-9 206 Orange San Juan Canyon Comment
  RSA698740  Paeonia californica Mary Oliver s.n. Orange Santa Ana canyon. Comment
  OBI82297  Pallenis maritima R. E. Riefner 2011-7-1 11 -86 Orange City of Newport Beach, rocky beach between Shorecliff Rd. and Cameo Shores Rd. 2 Comment
  RSA797014  Pallenis maritima R. E. Riefner Jr. 2012-5-25 12 -393 Orange City of Dana Point, rocky shore between Mussel Cove and Salt Creek Beach. 2 Comment
  UCR241100  Pallenis maritima R. E. Riefner Jr. 2010-1-2 10- 03 Orange South Coast, City of Laguna Beach, Moss Point, vicinity of Ocean Way at Ruby St. 2.5 Comment
  SEINET11261327  Panicum miliaceum A. C. Sanders, Fred M. Roberts 2008-7-16 35865 Orange Peninsular Range, Santa Ana Mountains, Lomas de Santiago, Santiago Creek wash at and above the confluence of Hangmans Tree Canyon (El Toro 7.5' Q).; 0 358 Comment
  UCD89738  Panicum miliaceum Beecher Crampton 1965-10-27 7585 Orange 2 miles E of Irvine, UC South Coast Field Station. Comment
  POM412  Papaver californicum Crocker 1916-3-28 s.n. Orange Santa Ana Mts. Comment
  RSA752712  Parapholis incurva Fred M. Roberts, Sandra Leatherman, Jennifer S. Pareti 2009-4-14 7148 Orange Dana Point Headlands: Dana Strand Beach and slopes above beach, 0.8 km WNW Marine Institute at Dana Point Harbor. CNLM Dana Point Preserve. 3 Comment
  SD234767  Parapholis incurva R. E. Riefner Jr. 2005-7-9 05 547 Orange South Coast: Huntington Beach, vicinity of Cynthia Dr. and Lavonne Ln. along the Santa Ana River. 7 Comment
  POM202594  Parapholis incurva L. M. Booth 1932-5-12 1009 Orange Newport Bay. Comment
  POM8722  Parietaria hespera var. hespera Philip A. Munz, R. D. Harwood 1920-4-17 3801 Orange Laguna Canyon. 61 Comment
  UCR222662  Parietaria judaica R. E. Riefner Jr. 2006-5-21 06- 199 Orange South Coast, city of Huntington Beach, Beach Blvd. at MacDonald Ave. 8 Comment
  IRVC24070  Parkinsonia aculeata Fred M. Roberts 1985-8-23 2175 Orange Mission Viejo; San Diego Fwy. (I-5), 0.9km N Oso Pkwy., on west side. Southern Coastal 121 Comment
  RSA725537  Parthenocissus inserta Fred M. Roberts, Robert L. Allen 2007-9-28 6609 Orange Santa Ana Mtns.: Silverado Cyn., along Silverado Cyn. Rd. at eastern edge of town of Silverado. 347 Comment
  RSA648017  Paspalum dilatatum J. C. Roos 1936-10-13 1533 Orange Costa Mesa near Santa Ana. Comment
  POM48017  Paspalum distichum I. M. Johnston 1924-8-29 s.n. Orange 1 mi. N of Los Alamitos. 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
  UC455151  Paspalum distichum I. J. Condit 1908-7-21 Orange Los Alamitos Comment
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Nov 20 2010
  OBI74937  Paspalum vaginatum Unknown 2008-7-29 08 -257 Orange City of Dana Point near Ritz-Carlton Hotel, Salt creek beach area 0 Comment
  UCR191427  Pectocarya linearis A. C. Sanders, Fred M. Roberts 2008-4-8 34777 A Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, SSE of Santiago Reservoir on Harding Truck Trail at Dripping Springs Loop, above Limestone Canyon 495 Comment
  POM212414  Pectocarya linearis subsp. ferocula C. B. Wolf 1931-3-6 1846 Orange Trabuco canyon, 1/2 mile above Trabuco Oaks, west slope of Santa Ana Mountains. 457 Comment
  UCR217452  Pectocarya linearis subsp. ferocula Mark A. Elvin 2003-1-26 2230 Orange South Coast, Irvine, UC Irvine Open Space Preserve, NE side, between core of UCI campus (E Peltason Dr.) and Hwy 73 69 Comment
  RSA0127410  Pectocarya linearis var. ferocula Fred M. Roberts 2016-3-17 8005 Orange San Joaquin Hills: City of Irvine, Bommer Canyon, east fork, 0.3 km ESE Cattle Camp near East Fork Trail. 152 Comment
  RSA1458  Pedicularis densiflora E. R. Johnson 1929-4-11 1259 Orange Sierra Peak Trail. Comment
  UCR159812  Pelargonium grossularioides Mark A. Elvin 2005-5-14 4314 Orange Southern Coastal, UCI Arboretum 15 Comment
  SEINET9628398 Image available Pellaea andromedifolia M. D. Windham 1985-7-9 711 Orange In the Santa Ana Mts. along small tributary of Hot Spring Canyon ca. 1.88 km NNE of its confluence with San Juan Creek. Cleveland N.F. Canada Gobernadora Quad (7 1/2 min.). 293 Comment
  UC185251  Pellaea andromedifolia Mrs. Carlotta C. Hall 1913-5-27 9407 Orange Santiago Canyon Comment
  RSA598963  Pellaea andromedifolia var. andromedifolia Scott D. White 1997-3-28 4835 Orange Above Modjeska Canyon, proposed water tank site 425 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
  CAS-BOT-BC71392  Pellaea mucronata Geo. L. Moxley 1927-5-1 s.n. Orange La Crescenta Comment
  RSA7472  Pellaea mucronata var. mucronata C. B. Wolf 1933-8-24 5396 Orange Summit of Santiago Peak, Santa Ana Mountains 1731 Comment
  RSA328946  Pennisetum ciliare var. ciliare J. West 1983-10-8 s.n. Orange City of Orange. Comment
  CDA2269  Pennisetum clandestinum D. G. Kelch 2006-12-9 6 .566 Orange Irvine. University Dr along tidal creek just E of I-73. Comment
  RSA725933  Pennisetum villosum R. E. Riefner 2003-11-30 3 -486 Orange South Coast: Santa Ana, 55 Freeway near Brookhollow St. 32 Comment
  RSA790701  Penstemon cordifolius R. H. McArthur 1934-5-19 2 Orange PR8. Trobuca Canyon. Comment
  UC1011907  Penstemon heterophyllus F. W. Pennell and E. M. Harvey 1949-6-29 26804 Orange Ortega Highway above San Juan Capistrano; above San Juan Capistrano Comment
  RSA562819  Penstemon heterophyllus var. australis Steve D. Boyd, Tim S. Ross 1992-5-20 7472 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
  RSA298694  Penstemon spectabilis D. C. Michener 1982-5-24 4044 Orange Open road bank along Main divide truck route 5.4 mi. north of El Cariso. Comment
  UCSB52393  Penstemon spectabilis Roberts, Fred 1982-7-20 Orange Santa Ana Mtns.: 1.8 km by road NE Falcon Group Camp; 2.9 km E Los Pinos Peak 1082 Comment
  IRVC25401  Pentachaeta aurea Fred M. Roberts 1987-4-3 3336 Orange San Joaquin Hills; Irvine; central Shady Canyon, 2.9km NE Signal Hill. Central coastal 107 Comment
  UC407314  Pentachaeta aurea LeRoy Abrams 1903-4-17 3259 Orange near El Toro Comment
  RSA751315  Pentachaeta aurea subsp. allenii A. C. Sanders, Fred M. Roberts 2008-5-6 35272 Orange Lomas de Santiago, upper Limestone Canyon, 2.9 mi. NNW of El Toro 366 Comment
  IRVC14091  Pentagramma triangularis subsp. triangularis B. T. Gittins 1966-11-13 1672 Orange Silverado Canyon, 1mi past historical marker; shaded bank near stream bed. Santa Ana Mountains Comment
  SD145971  Peritoma arborea var. globosa R. D. Goeden, D. W. Ricker 1965-6-21 Orange Dana Point 60 Comment
  RSA690  Petunia parviflora J. T. Howell 1927-6-30 247 Orange Bryant Ranch, near Long Beach. 15 Comment
  POM49687  Phacelia cicutaria var. hispida L. R. Abrams 1901-06 1820 Orange Santiago Peak trail. Comment
  POM49691  Phacelia cicutaria var. hispida L. R. Abrams 1902-1 512 Orange Santiago Creek Canyon. Comment
  RSA769612  Phacelia cicutaria var. hispida E. W. Lathrop 1974-6-27 7430 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  RSA650551  Phacelia cicutaria var. hispida Don Rimpau 1949-5-7 s.n. Orange Santa Ana Canyon. 183 Comment
  UCSB34159  Phacelia cicutaria var. hispida Nilsen, Erik; Roberts, Fred; Roberts, D. 1980-5-2 Orange Along Hwy. 74, 0.2 km. SSW of the entrance to the Lower San Juan Picnic area, San Juan Mountains 390 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
  RSA699147  Phacelia cicutaria var. hubbyi Helen Stanley s.n. Orange Limestone Canyon. Comment
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Jun 12 2019
  RSA74935  Phacelia davidsonii F. W. Peirson 1923-5-6 3499 Orange Summit of Santiago Peak. 1677 Comment
  RSA759253  Phacelia davidsonii Robt. Allen, Reginald Durant 2008-5-16 s.n. Orange Modjeska Peak, N face, along access road up Modjeska Peak, outside the sharp bend in the extreme end of the road. Survey Point #47. 1514 Comment
  POM8712  Phacelia distans P. A. Munz, R. D. Harwood 1920-4-17 3805 Orange Laguna Canyon 76 Comment
  RSA699145  Phacelia distans R. H. McArthur 1934-4-28 s.n. Orange Ladd Canyon Comment
  UCR230241  Phacelia distans Dick Newell, Don Millar 2011-3-15 085 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, top of Agua Chinon Wash along Limestone Cyn. Rd. 454 Comment
  RSA113263  Phacelia distans E. K. Balls 1955-4-4 20425 Orange N of Dana Poit off Hwy 101. 46 Comment
  RSA542476  Phacelia distans Fred M. Roberts, T. Sholars 1988-3-29 3877 Orange San Joaquin Hills: Laguna Canyon along Laguna Canyon road, 2kim by road N Pacific Coast Hwy, 2.1km E guna Survey Marker. 34 Comment
  OBI5992  Phacelia minor Carl B. Wolf 1931-3-6 1830 Orange 1.5 mi below Trabuco Oaks along Trabuco cyn rd, W slope of Santa Ana Mts 305 Comment
  RSA16479  Phacelia minor Percy C. Everett 1935-6-19 7228 Orange Main Divide Motorway, Bear Spring. 1220 Comment
  RSA2112  Phacelia minor Carl B. Wolf 1931-3-6 1830 Orange Trabuco Canyon Road, 1.25 miles below Trabuco Oaks. 305 Comment
  RSA552939  Phacelia minor Fred M. Roberts, Carol A. Roberts 1989-4-20 4296 Orange Santa Ana Mtns: Upper Lion Canyon along San Juan Trail just south of Blue Jay Campground, 2.5km SE Los Pinos Peak. 980 Comment
  UCR191353  Phacelia minor A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34640 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 330 Comment
  POM8648  Phacelia parryi P. A. Munz, R. D. Harwood 1920-4-24 3780 Orange Sierra [Freemont] Canyon 366 Comment
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Sep 17 2011
  RSA0127601  Phacelia parryi Fred M. Roberts 2016-3-25 8031 Orange San Joaquin Hills: Bommer Canyon, west slope near south end fo Nature Loop Trail, 0.1 km NW Cattle Camp and 1.6 km NE summit of Signal Peak. 146 Comment
  RSA732082  Phacelia parryi A. C. Sanders, Fred M. Roberts 2008-3-25 34551 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills. 259 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
  HSC13728  Phacelia parryi J. J. Wagoner 1965-4-11 16 Orange 5 mi. N of Modjeska Canyon near Irvine Lake off of Irvine Rd. 152 Comment
  RSA542475  Phacelia parryi Fred M. Roberts, Gordon Marsh, Karlin G. Marsh 1988-4-26 3940 Orange San Joaquin Hills: Pelican Hill, 0.5 kim SE Summit. 165 Comment
  RSA428288A  Phacelia ramosissima H. C. Ackley 1926-05 5984 Orange Sunset Beach. Comment
  SD72766  Phacelia ramosissima F. R. Fosberg 1931-6-21 S 5135 Orange Silverado Canyon, Santa Ana Mountains. Comment
  CAS-BOT-BC144973  Phacelia ramosissima var. austrolitoralis Carl B. Wolf 1932-6-13 3716 Orange Fullerton, Malvern & Nicholas Aves. 53 Comment
  UC702949  Phacelia ramosissima var. latifolia John Thomas Howell 1927-6-3 2417 Orange Santa Ana Canyon Southern Puente Hills Comment
  IRVC8439  Phalaris aquatica J. B. Anderson 1966-5-15 642 Orange Upper Newport Bay: along Irvine Avenue at 23rd Street. Southern Coastal Comment
  UCR160531  Phalaris canariensis Robert DeRuff 1992-5-29 427 Orange South Coast, Newport Back Bay, just below the bluff top in the Castaways area 15 Comment
  IRVC1779  Phalaris minor C. Thompson 1965-5-4 s.n. Orange UC Irvine; General Services Bldg; Jamboree Road. Southern Coastal Comment
  UCR97073  Phalaris minor Scott D. White 1993-4-28 1286 Orange Pacific slope, Tustin Marine Corps Air Station, NW of Peters Canyon Channel, between Moffett Dr. & Warner Comment
  UCSB48094  Phalaris minor Roberts, Fred 1981-4-11 Orange Highway 74: 5.2 km. E San Juan Capistrano, near San Juan Creek crossing 52 Comment
  SEINET10876692  Philodendron Thomas B. Croat 2003-4-5 Croat 87598 Orange Cultivated plants from Rick M. Cirino, Cosa Mesa, California. Originally from Brazil? Comment
  UCR133164  Phlox gracilis Adrian Wolf 2000-4-7 452 Orange Santa Ana Mtns., North Ranch Policy Plan Area, North Fremont Canyon, 3 km NNE of canyon mouth 408 Comment
  UCR218373  Phoenix dactylifera Robert DeRuff 2008-1 570 Orange South Coast, Upper Newport Bay, between Mariner's Drive and North Star Beach 6 Comment
  UCSB41810  Phoradendron leucarpum subsp. tomentosum Hufstader, R. 1971-3-24 Orange Trabuce Canyon approx. 7 miles from Santiago Cyn. Rd, 426 Comment
  UCSB52908  Phoradendron leucarpum subsp. tomentosum Roberts, Fred 1984-8-14 Orange Santa Ana Mtns.: Old San Juan Trail, 2.1km SSE Los Pinos Peak* 0.8km SW Blue Jay Camp ground 985 Comment
  POM182012  Phyla lanceolata F. W. Peirson 1924-8-29 5094 Orange Road from Artesia to Hungtington Beach, along ditch Comment
  UC536905  Phyla lanceolata Lawrence M. Booth 1932-7-1 1238 Orange Anaheim Meadows Comment
  RSA384024  Phyllospadix torreyi Gigas 1832-6-26 15492 Orange Laguna Beach. Comment
  RSA684036  Phyllospadix torreyi E. Yale Dawson 1958-11-10 19789 Orange First rocky spit N of Dana Point. Station no 22. 270-300 ft from shore base point. Comment
  RSA684065  Phyllospadix torreyi E. Yale Dawson 1958-1-5 18117 Orange E side of Crystal Cove. Station no 42. 140-150 ft from shore base point. Comment
  RSA33799  Phyllospadix torreyi N. C. Cooper 1942-11-8 890 Orange Laguna Beach. Comment
  UCR46555  Picris echioides B. G. Pitzer, D. C. Hawks 1986-10-21 0353 A Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, c. 10 mi east of Santa Ana, in hills N and east of South Coast Gun Club on Jeffrey Road in Hicks Canyon 183 Comment
  RSA5826  Picris echioides C. B. Wolf 1932-6-28 3796 Orange Bryant Ranch, north boundary of field, N.E. corner of N-E 1/4 S.W. 1/4 sect 27 9 Comment
  RSA802000  Picris echioides Kenneth Beard 1934-02 s.n. Orange Beside irrigation ditch near Hewes Park Comment
  CAS-BOT-BC76994  Pilularia americana H. H. Tracy 1935-4-10 s.n. Orange North of Costa Mesa Comment
  RSA655237  Pilularia americana D. E. Bramlet 1998-3-21 2579 Orange Fairview Park, City of Costa Mesa. The site is located some 366m N of the intersection of Wilson and Canyon Dr. and 152 m W of the Canyon School, on a mesa overlooking the Santa Ana River. 24 Comment
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Feb 26 2009
  UC1543146  Pilularia americana Donald G. Nelson 1935-4-15 301 Orange near Costa Mesa (on rd from Garden Grove to Costa Mesa, <rd.> converging toward main hwy. from Santa Ana) Comment
  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
  RSA23668  Pinus attenuata C. B. Wolf 1939-1-20 9484 Orange Santa Ana Mts., N.W. of Pleasant's Pk. (Sugarloaf) along Main Divide Motorway; 1 3/10 mi. So. of summit, Skyline Dr. Ft. 1159 Comment
  UC532151  Pinus attenuata C. B. Wolf 1934-12-12 6259 Orange saddle nw of Sugarloaf Pk. (Pleasants Pk.) (s slope of main ridge, 1.3 mi s of summit of Skyline Drive); Santa Ana Mts. 1158 Comment
  UCSB47634  Pinus coulteri Roberts, Fred 1980-5-3 Orange On west side of road; Main Divide Truck Trail, 0.6 km. southeast of Trabuco Peak, Santa Ana Mtns. 1259 Comment
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Nov 8 2007
  HSC1549  Pinus quadrifolia Uknown 1957-8-21 Orange Laguna area Comment
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Nov 16 2016
  SEINET4690264 Image available Pinus radiata T. C. Arambula 1966-1 137 Orange Fullerton, Sunny Crest Drive at Harbor Blvd, Fullerton Comment
  RSA539344  Piperia cooperi Fred M. Roberts, Gordon Marsh 1987-5-14 3449 Orange Santa Ana Mountains: Upper Trabuco Canyon, Trabuco Canyon Trail, 2 kilometers NNW Los Pinos Peak. 856 Comment
  JEPS103669  Piperia elongata Robert L. Allen with Christopher M. Barnhill 2004-1-10 12269 Orange Santa Ana Mountains, Trabuco Trail, ca 0.7 trail miles (1127m) NW of Los Pinos Saddle, middle of top half of first switchback. 1178 Comment
  RSA599183  Piptatherum miliaceum Scott D. White 1997-3-28 4826 Orange Above Modjeska Canyon, proposed water tank site 425 Comment
  RSA725540  Piptatherum miliaceum Fred M. Roberts, Robert L. Allen 2007-9-28 6606 Orange Santa Ana Mtns.: Silverado Cyn., along Silverado Cyn. Rd. at eastern edge of town of Silverado. 347 Comment
  UCR193349  Piptatherum miliaceum A. C. Sanders 2008-5-28 35438 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Bee Flat at mouth of Limestone Canyon 264 Comment
  CDA21582  Pittosporum crassifolium Mark A. Elvin, D. G. Kelch, B. S. Herhus, Patricia Iluore 2006-12-9 5324 Orange Southern Coastal; Newport Backbay; along Bayside Drive ca. 100 miles west of Eastbluff Drive. Comment
  RSA627741  Plagiobothrys acanthocarpus Scott D. White 1998-1-26 6064 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
  UCR192485  Plagiobothrys canescens A. C. Sanders, Fred M. Roberts 2008-3-25 34511 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  IRVC21599  Plagiobothrys canescens Fred M. Roberts 1984-4-24 1354 Orange Wagon Wheel Canyon, 3.0km NE Median Survey Mark; 1.0km NW Bench Mark 422, Wagon Wheel Regional Park 150 Comment
  UCR107858  Plagiobothrys collinus Scott D. White 1998-3-18 6211 Orange UCI, site of proposed research park, c. halfway between Berkeley Ave. and new freeway. 37 Comment
  UCR222387  Plagiobothrys collinus Mark A. Elvin 2003-1-26 2237 Orange South Coast, Irvine, UC Irvine Open Space Preserve, NE side, between core of UCI campus (E Peltason Dr.) and Hwy 73 69 Comment
  RSA368943  Plagiobothrys collinus var. californicus Albert J. Perkins 1914-3-9 s.n. Orange Laguna Beach Comment
  UCR5140  Plagiobothrys collinus var. californicus Barbara T. Gittins, O. F. Clarke 1966-3-19 903 Orange Pacific slope, Irvine Ranch, east of University of California Irvine campus, Newport Beach 91 Comment
  UCSB52455  Plagiobothrys collinus var. californicus Fritzke, Sue; Roberts, Jr., Fred 1982-4-3 Orange Dana Point; hills, 1.0 km. N Dana Hills High School; 1.9 km. W Marco Forster Junior High School 100 Comment
  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
  UC1212098  Plagiobothrys fulvus var. campestris D. Bates 1960-4-2 2307 Orange Route 74 e San Juan Capistrano Comment
  UCR191000  Plagiobothrys nothofulvus A. C. Sanders, Fred M. Roberts 2008-4-22 35045 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, valley at south end of Loma Ridge and at head of Limestone Canyon, c. 2.5 miles SW of Silverado, above spring shown on topo map 457 Comment
  UCSB14544  Plagiobothrys nothofulvus Breedlove, Dennis 1962-3-9 Orange 4.4 miles east of San Juan Capistrano on State 74 112 Comment
  RSA588771  Plagiobothrys tenellus Fred M. Roberts, Carol A. Roberts, D. E. Bramlet 1990-5-6 4593 Orange Santa Ana Mnts.: Chiquito Basin, San Juan Trail, c.a. 2.5 km SSE Los Pinos Peak. 915 Comment
  HSC16874  Plantago erecta S. M. Clapp 1966-4-8 43 Orange 4 mi. into Black Star Canyon 183 Comment
  SEINET10805703  Plantago erecta Richard E. Riefner Jr. 2006-4-12 Riefner 06 -118 Orange Irvine, north foot of San Joaquin Hills, vicinity of Quail Hill, SSW of 405 Freeway and Shady Canyon Rd. (Tustin 7.5'Q). 46 Comment
  SD247682  Plantago erecta R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49669 Orange Northern Santa Ana Mountains: Coal Canyon (NW of Sierra Peak). Comment
  UCSB56505  Plantago erecta Marsh, K. 1978-3-16 Orange Irvine Ecological Preserve; Hill #1 57 Comment
  POM201756  Plantago hirtella var. galeottiana L. M. Booth 1932-6-17 1208 Orange Bolsas Marsh. Comment
  POM201755  Plantago lanceolata L. M. Booth 1932-7-18 1266 Orange Costa Mesa, Newport Bay Comment
  POM201757  Plantago major L. M. Booth 1932-6-28 1219 Orange Bolsas Marsh. Comment
  RSA232238  Plantago major James Henrickson 1970-8-29 5309 Orange 3 miles NE of Huntington Beach in pasture just N of Bolsa Chica Salt Marsh. 0 Comment
  RSA698384  Plantago major R. H. McArthur 1934-4-14 s.n. Orange Forks of Laguna Canyon. Comment
  UC1618068  Plantago ovata Donald G. Nelson 1935-3-30 194 Orange On Tonner lease, mouth of Brea Canyon. Comment
  RSA760  Plantago ovata var. fastigiata J. T. Howell 1928-2-7 818 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA725469  Platanus racemosa Fred M. Roberts, Megan Lulow 2007-7-30 6549 Orange Fremont Canyon, 1.3 km NE Irvine Lake spillway, North Irvine Ranch Policy Area. 253 Comment
  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
  CAS-BOT-BC92244  Platystemon californicus D. E. Breedlove 1962-3-9 1799 Orange 4.4 miles east of San Juan Capistrano on State 74. 112 Comment
  RSA722431  Platystemon californicus J. R. Bruff 1927-3-15 2 -S Orange 1 mi. N.E. Country Club. Comment
  SEINET12102790  Platystemon californicus Unknown 1884-1 s.n. Orange Anaheim Comment
  CAS-BOT-BC229039  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 8 Comment
  UC2061644  Plecostachys serpyllifolia R. E. Riefner Jr. 2004-12-30 04 -681 Orange City of Laguna Beach, vicinity of West St. and Pacific Coast Highway. Comment
  UCR222648  Plecostachys serpyllifolia R. E. Riefner Jr. 2008-10-22 08- 308 Orange South Coast, city of Laguna Beach, ocean bluff vicinity of West St. and Pacific Coast Highway 4 Comment
  RSA790114  Plecostachys serpyllifolia R. E. Riefner Jr. 2011-7-7 11 -73 Orange City of Laguna Beach, Moss Point, vicinity of Ocean Way at Ruby St. 5 Comment
  RSA93085  Pluchea odorata F. W. Peirson 1919-11-8 1299 Orange Aliso Creek. 0 Comment
  JEPS30711  Pluchea odorata var. odorata Peter H. Raven 1961-10-15 16855 Orange just n of U.S. Highway 91 along dyke along road to Yorba Linda 114 Comment
  JEPS40448  Pluchea odorata var. odorata L. M. Booth 1932-7-19 1272 Orange Bolsa Chica; coastal Orange Co. Comment
  UCR150568  Pluchea purpurascens Scott D. White, Matt Carlton 2003-11-20 9871 Orange South Coastal Plain, Santa Ana Mtn foothills. San Juan Creek in San Juan Capistrano 24 Comment
  UCR162343  Plumbago capensis Robert DeRuff 1985-1 250 Orange Southern Coast, Newport Beach, Upper Newport Back Bay, along the path from Mariners Drive to North Star Beach 30 Comment
  UCR138440  Poa secunda R. E. Riefner Jr. 2000-4-15 20- 379 Orange Santa Ana Mtns., North Ranch Policy Plan Area Main Divide Road; south of Gypsum Canyon and south of Windy Ridge 518 Comment
  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
  RSA636103  Poa secunda subsp. secunda Valerie L. Soza, LeRoy Gross 1999-6-7 489 Orange West side of Modjeska Peak, along Main Divide Road. 1448 Comment
  IRVC25471  Polycarpon depressum Fred M. Roberts 1987-4-21 3376 Orange Aliso Creek, Aliso Creek Bike Trail, 3.0km ENE Moulton Peak, Aliso Viejo 73 Comment
  RSA562742  Polycarpon depressum Steve Boyd 1992-5-19 7438 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of the wilderness in Lucas Canyon from crossing the creek by Lucas Canyon Trail, downstream to confluence with Aliso Canyon. 274 Comment
  UCR158809  Polygala cornuta subsp. fishiae A. C. Sanders, Mark A. Elvin 2005-9-2 31611 Orange Santa Ana Mtns., upper Holy Jim Canyon, a major tributary of Trabuco Canyon, along the trail in the switchbacks 970 Comment
  RSA450863  Polygala cornuta var. fishiae Gordon Marsh, K. G. Marsh 1977-11-21 s.n. Orange Along N side of Ortega Hwy, 0.6 miles W of Lower San Juan Picnic ground. Comment
  SD245439  Polygala cornuta var. fishiae Robert Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49615 Orange Santa Ana Mountains: along Ortega Highway (74) about 2.5 miles above San Juan Fire Station, lateral ravine tributary to San Juan Canyon. Comment
  UCR96858  Polygonum aviculare Scott D. White 1993-4-28 1284 Orange Pacific slope, Tustin Marine Corps Air Station, NW of Peters Canyon Channel, between Moffett Dr. & Warner Comment
  OBI30214  Polygonum aviculare SAW 1971-3-12 3 F Orange Cal State Fullerton Campus 122 Comment
  UC729950  Polygonum aviculare subsp. aviculare Carl B. Wolf 1932-6-20 3755 Orange around administration building; Santa Ana Canyon, Rancho Santa Ana 198 Comment
  CAS-BOT-BC414041  Polygonum aviculare subsp. aviculare Ira L. Wiggins 1966-3-31 20570 Orange Along shoulder of Brea Olinda Boulevard near Carolina Avenue, just outside the city limits of Fullerton Comment
  CAS-BOT-BC414042  Polygonum aviculare subsp. aviculare Ira L. Wiggins 1965-11-7 20364 Orange Vacant lot on west side of State College Boulevard near Troy High School, Fullerton Comment
  POM2373  Polygonum coccineum D. L. Crawford 1916-7-26 s.n. Orange Laguna Canyon. Comment
  RSA717156  Polygonum lapathifolium Fred M. Roberts, Chris M. Barnhill 2005-9-27 6274 Orange San Juan Capistrano: San Juan Creek wash, east of La Novia Road bridge, 1.4 km E Mission San Juan Capistrano. 27 Comment
  RSA594872  Polygonum punctatum Fred M. Roberts, Wayne Ferren, David Bramlet 1991-11-29 4827 Orange Santa Ana Canyon: Featherly Regional Park, Santa Ana River, Horseshoe Bend, c.a. 3.8 km S San Juan Hill. 102 Comment
  IRVC3043  Polypodium californicum C. Thompson 1965-4-15 HS0570 Orange Trabuco Canyon. Santa Ana Mountains Comment
  IRVC3046  Polypodium californicum A. S. Boughey 1965-3-5 51 Orange Trabuco Canyon. Santa Ana Mountains Comment
  RSA733703  Polypodium californicum Minor Warne 1934-02 s.n. Orange Modjeska Canyon Comment
  RSA85017  Polypodium californicum F. W. Peirson 1925-4-11 5729 Orange slope above mill, in Silverado Canyon, Santa Ana Mountains 914 Comment
  RSA85051  Polypodium californicum F. W. Peirson 1919-11-8 1516 Orange South of Arch Beach, near Laguna Beach Comment
  IRVC19535  Polypodium californicum R. L. Allen 1977-2-13 s.n. Orange Viejo Canyon, off Hwy 74, 15.5mi NE San Juan Capistrano; steep, rocky seep above San Juan Creek. Santa Ana Mountains Comment
  UCSB48374  Polypogon interruptus 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
  IRVC12897  Polypogon monspeliensis B. T. Gittins 1966-11-25 1704 Orange Silverado Canyon: 2 miles above historical marker. Santa Ana Mountains Comment
  IRVC24285  Polypogon monspeliensis Fred M. Roberts 1985-10-26 2515 Orange Santa Ana River: adjacent to Huntington Beach; 0.7km SSW Adams Street bridge. southern coastal 4 Comment
  RSA91997  Polypogon monspeliensis F. W. Peirson 1924-5-31 4649 Orange Laguna Canyon near Laguna Beach. 107 Comment
  RSA731799  Polypogon viridis Fred M. Roberts, Sandy Leatherman 2007-11-9 6638 Orange Santa Ana Mtns.: San Juan Canyon, Lower San Juan Picnic Ground. 408 Comment
  RSA747709  Polypogon viridis Fred M. Roberts 2008-5-16 6987 Orange Dana Point: Dana Point Hradland, CNLM Preserve, north of Marguerita Drive, 0.5 km WNW Marine Institute, Dana Point Harbor. 75 Comment
  RSA756311  Polypogon viridis A. C. Sanders, Fred M. Roberts 2008-7-3 35703 Orange Weir Canyon, along Weir Canyon Rd. 1.2 mi. SSE of Walnut Canyon Reservoir, below Upper Blind Canyon Rd. 212 Comment
  IRVC25447  Polystichum imbricans subsp. curtum Fred M. Roberts, K. G. Marsh 1987-5-14 3439 Orange Santa Ana Mtns: Upper Trabuco Canyon, Trabuco Canyon Trail, 1.3km NE Los Pinos Peak. Peninsular Ranges 1231 Comment
  IRVC28638  Populus balsamifera subsp. trichocarpa Mark A. Elvin, A. C. Sanders 2005-9-2 4493 Orange Mouth of Lion Cyn, just up stream from Lower San Juan Campground. Santa Ana Mtns 457 Comment
  UCR51476  Populus balsamifera subsp. trichocarpa S. J. Myers 1987-9-9 s.n. Orange San Juan Capistrano, immediately east of San Juan Creek and 0.25 mi. north of Hwy 1, just north of existing sewage treatment plant 9 Comment
  RSA731957  Populus fremontii subsp. fremontii Fred M. Roberts 2007-12-12 6700 Orange Santa Ana Canyon: Santa Ana River, south of Green River Golf course on south side of river, 0.4km E Coal Cyn. Rd. and 0.7km W Riverside Co. line. 129 Comment
  UCR154273  Populus fremontii subsp. fremontii Mark A. Elvin 2004-5-2 3430 Orange Southern Coastal, Irvine: San Joaquin Freshwater Marsh, near Campus and University Drives; 1.7 km (air) NNW UC Irvine campus center 3 Comment
  POM266317  Porophyllum gracile J. C. Roos 1937-5-10 2337 Orange East of San Juan Capistrano. Comment
  RSA542592  Porophyllum gracile Fred M. Roberts, T. Sholars 1988-3-29 3883 Orange Santa Ana Mountains: Hot Springs Canyon, 1.3 km north Hwy 74 by road , 0.7 km NW Juan Rancho Survey Marker. 274 Comment
  CAS-BOT-BC453826  Potamogeton nodosus Street; Williams 1919-5-4 2689 Orange Laguna Lakes Comment
  JEPS47201  Potentilla anserina subsp. pacifica Lawrence M. Booth 1932-6-28 1215 Orange Bolsas Creek Comment
  IRVC20180  Prosopis velutina Karlin G. Marsh 1983-9-21 s.n. Orange San Juan Capistrano; brushy lateral draining into south-facing canyon, near top of ridge. Southern Coastal Comment
  RSA542402  Prunus ilicifolia Fred M. Roberts Jr., Carol A. Williams 1988-3-8 3826 Orange San Juan Canyon, Hwy 74, 1.2 km SSW Lower San Juan Picnic Ground. 378 Comment
  JEPS29201  Pseudognaphalium biolettii Rimo Bacigalupi and P. C. Hutchison 1962-3-16 8235 Orange 2 mi n Doheny Beach State Park; U.S. Highway 101 Comment
  UCR217456  Pseudognaphalium biolettii Mark A. Elvin 2003-1-26 2227 Orange South Coast, Irvine, UC Irvine Open Space Preserve, NE side, between core of UCI campus (E Peltason Dr.) and Hwy 73 69 Comment
  RSA450841  Pseudognaphalium biolettii J. P. Anderson 1966-3-11 430 Orange San Joaquin Hills, along road to Signal Peak, above Lower Coyote Canyon 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
  UCR106257  Pseudognaphalium californicum B. G. Pitzer 1996-4-30 2800 A Orange San Joaquin Hills, Crystal Cove State Park, south of City of Irvine on State Hwy 1 (Pacific Coast Hwy) 15 Comment
  UCR239639  Pseudognaphalium californicum Fred M. Roberts 2012-4-24 7506 Orange San Joaquin Hills, Buck Gully, west of intersection of Ridge Park Road and Newport Coast Drive, 1.5 km west of Signal Peak 179 Comment
  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
  UC1922345  Pseudognaphalium leucocephalum R. E. Riefner Jr. 2007-2-13 07 -55 Orange City of San Juan Capistrano, vicinity of La Novia Ave. and San Juan Creek. Comment
  RSA682602  Pseudognaphalium luteoalbum Scott D. White, Pam DeVries 1998-12-10 7201 Orange Brea: Tonner Canyon and adjacent slope, just east of 57 Freeway crossing. 137 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
  JEPS20432  Pseudognaphalium ramosissimum L. M. Booth 1932-7-27 1321 Orange Corona del Mar Comment
  RSA751981  Pseudognaphalium stramineum Fred M. Roberts 2008-3-27 6804 Orange Dana Point: Dana Point Headlands, CNLM Preserve near NE Gate, 0.5 km W Marine Institute (Dana Point Harbor). 75 Comment
  CAS-BOT-BC357570  Pseudognaphalium stramineum Ira L. Wiggins 1966-3-18 20533 Orange Experimental Garden behind greenhouse, California State College at Fullerton Comment
  RSA797373  Pseudotsuga macrocarpa Keith E. Hoffmaster 1931-1-1 52 Orange Santa Ana Mountains Comment
  UCR144742  Pseudotsuga macrocarpa A. S. Boughey 1965-3-16 75 Orange Santa Ana Mtns., Silverado Canyon Comment
  UCSB7993  Pseudotsuga macrocarpa McPherson, James 1966-3-19 Orange On Silverado Canyon Road 6.0 miles east of Silverado Fire Station; Santiago Peak; Santa Ana Mountains 1051 Comment
  UC2046880  Psilotum nudum R. E. Riefner Jr. 2015-11-22 15 -453 Orange City of Costa Mesa, E side of Orange County Fairground, Lot #A-5, W of Newport Blvd. and N of Fair Drive. Comment
  UCR282159  Psilotum nudum R. E. Riefner Jr. 2017-1-15 17- 36 Orange South Coast, city of Newport Beach, Polaris Drive, south of Evening Star Drive, Westcliff Park, north side of Newport Bay 3 Comment
  UC572669 Image available Ptelea crenulata W. G. Watkins 1937-2-1 5 Orange Santiago Canyon Comment
  RSA588892  Pteridium aquilinum var. pubescens Fred M. Roberts 1990-6-4 4662 Orange Santa Ana Mts. Hall Canyon, 1.8 km NNW Mustand Spring at east edge of flying B Ranch. 421 Comment
  JEPS57988  Pterostegia drymarioides Alice King 1908-4-18 Orange Santa Ana Mts. Comment
  POM2151  Pterostegia drymarioides P. A. Munz 1918-5-4 2217 Orange Laguna Canyon. Comment
  POM8744  Pterostegia drymarioides P. A. Munz, R. D. Harwood 1920-4-20 3724 Orange Santa Ana Mountains: Silverado Canon 549 Comment
  RSA732064  Pterostegia drymarioides A. C. Sanders, Fred M. Roberts 2008-3-25 34510 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills. 259 Comment
  CAS-BOT-BC362146  Pulicaria paludosa Robert L. Pope 1959-8-14 s.n. Orange Ray Miller prop., Santa Ana Canyon, e. of Fullerton Comment
  CDA23087  Pulicaria paludosa Mary H. White 2006-9-23 923061 Orange Southern Coastal; San Joaquin Freshwater Marsh, UC Natural Reserve; southwest edge, along San Diego Creek, north of University Drive, east Highway 73. Comment
  RSA679099  Pulicaria paludosa Fred M. Roberts 2003-7-24 5964 ` Orange San Juan Capistrono: San Juan Creek, c.a. 0.1 km NE La Novia Bridge. Along creek on cobbly sand of wash in open southern willow scrub and mulefat scrub. 27 Comment
  RSA750903  Pulicaria paludosa A. C. Sanders, Fred M. Roberts 2008-7-3 35710 Orange Weir Canyon, along Weir Canyon Rd. 1.2 mi. SSE of Walnut Canyon Reservoir, below Upper Blind Canyon Rd. 212 Comment
  RSA800669  Pulicaria paludosa Justin M. Wood 2010-9-29 2752 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
  UCD148359  Pulicaria paludosa T. C. Fuller 1963-10-9 11362 Orange North facing slope of the Santa Ana Canyon, 0.1 mile south of Riverside Freeway to Anaheim. Around 2 miles west of the Riverside county line in Orange County. Comment
  RSA12363  Quercus X grandidentata E. R. Johnson 1934-1-6 5563 Orange Santa Ana Mts., on slopes of Sierra Peak at about the head of Claymine Canyon. 762 Comment
  CAS-BOT-BC61812  Quercus agrifolia C. B. Wolf 1931-3-6 1832 Orange 1.5 miles below Trabuco Oaks along Trabuco Canyon road, west slope Santa Ana Mts. 304 Comment
  IRVC1324  Quercus agrifolia Debbie Frees 1965-3-13 s.n. Orange Silverado Canyon. Santa Ana Moutnains Comment
  RSA38451  Quercus agrifolia Carl B. Wolf 1944-11-29 11496 Orange West base of Santa Ana Mountains, Orange County Park 183 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
  IRVC22517  Quercus agrifolia var. agrifolia Fred M. Roberts 1985-4-30 1677 Orange Laguna Beach: Temple Hill; at margin of "Dripping Springs Canyon"; 0.4km NNE Top of the World School. Southern Coastal 255 Comment
  RSA751190  Quercus agrifolia var. agrifolia A. C. Sanders 2008-7-3 35684 Orange Upper Weir Canyon, along Windy Ridge Road at huge sandstone boulder (visible on Google Earth), 1.3 mi. SE of Walnut Canyon Reservoir 314 Comment
  IRVC24487  Quercus berberidifolia Fred M. Roberts 1986-2-28 2600 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
  RSA172202  Quercus berberidifolia Robert F. Thorne 1963-7-26 32840 Orange Tin Mine Canyon above Beek's Spring, Trabuco District, Cleveland National Forest 854 Comment
  RSA663280  Quercus berberidifolia R. E. Riefner Jr. 2000-6-22 20 -572 Orange NCCP North Ranch Policy Plan Area, NE property; along National Forest boundary, at powerline. 756 Comment
  UCR241911  Quercus berberidifolia Fred M. Roberts 2012-5-10 7561 Orange Peninsular Ranges; Coastal Foothills, San Joaquin Hills, south fork of Buck Gully, north slope Pelican Hill, 0.6 km N summit Pelican Hill, north of Pelican Hill Drive 183 Comment
  IRVC22515  Quercus dumosa Fred M. Roberts, Karlin G. Marsh 1983-5-26 1094 Orange Dana Point Headlands: 0.5km W Dana Point Harbor; 0.8km SSW Richard Henry Dana School Southern Coastal 82 Comment
  UCD63655  Quercus dumosa Daniel Sanchez-Mata 2006-7-1 s.n. Orange Laguna Niguel. Dana Point Highlands. Pacific Island Drive. 70 Comment
  RSA595702  Quercus engelmannii J. E. Harrison 1996-10-17 500 Orange Upper Coyote Canyon, San Joaquin Hills, just n of Signal Peak adjacent to S. side of San Joaquin Hills Transportation Corridor (SR-73). 250 Comment
  IRVC16580  Quercus kelloggii Gordon A. Marsh, Karlin G. Marsh 1976-12-15 s.n. Orange Santa Ana Mtns: Silverado Truck Trail, 0.2 mi. N of Main Divide jctn. Peninsular Ranges Comment
  IRVC19902  Quercus lobata Gordon A. Marsh, Karlin G. Marsh 1983-7-15 s.n. Orange San Joaquin Hills, Upper Shady Canyon. Southern Coastal Comment
  RSA644971  Quercus wislizeni var. frutescens R. E. Riefner Jr. 2000-4-13 2 -361 Orange NCCP North Ranch Policy Plan Area. Upper drainage of Fremont Canyon near National Forest boundary, S. of Claymore Mine. USGS 7.5' Quad: Black Star Canyon. 610 Comment
  RSA160430  Rafinesquia californica J. D. Olmsted 1959-4-23 471 Orange Spring Trail at Beacon Pines Ranch; 9 miles SW of Corona. 762 Comment
  SD144019  Rafinesquia californica Scott D. White 1997-3-28 4838 Orange Above Modjeska Canyon: Proposed water tank site. 424 Comment
  RSA734144  Ranunculus asiaticus Virginia Pritchard, Ruth Greenwald 1938-05 s.n. Orange Santa Ana. Comment
  RSA678729  Ranunculus californicus var. californicus Fred M. Roberts, Laura Cohen 2000-3-24 5268 Orange Rancho Mission Veijo Land Conservancy: Tributary to Christanitos Cyn., Flagpole Meadow, upper shady Canyon Trail, about 1.6 NW Sycamore Gate. 170 Comment
  RSA542415  Ranunculus hebecarpus Fred M. Roberts, Karlin G. Marsh 1987-5-14 3447 Orange Upper Trabuco Canyon, Trabuco Canyon Trail, 2 km NNW Los Pinos Peak 856 Comment
  IRVC1130  Raphanus raphanistrum L. McCabe 1965-4-17 Orange Laguna Canyon. Laguna Beach Comment
  IRVC19391  Raphanus sativus R. L. Allen 1983-2-12 A623 Orange Fullerton; Hillcrest Park, slope bordering E Valley View Drive. Southern Coastal Comment
  RSA651170  Raphanus sativus Norman Willis 1948-2-8 s.n. Orange 2 miles E of Orange 60 Comment
  RSA663161  Rhamnus californica R. E. Riefner 2000-8-3 20 -711 Orange NCCP North Ranch Policy Plan Area. E of Main Divide Road and Windy Ridge. 535 Comment
  CAS-BOT-BC55960  Rhamnus ilicifolia P. A. Munz; R. D. Harwood 1920-4-24 3765 Orange Santa Ana Canyon, Hillside, Sierra Canyon 365 Comment
  CAS-BOT-BC56026  Rhamnus ilicifolia P. C. Everett 1935-6-19 7242 Orange Santa Ana Mts., Trabuco Canyon, 2 mi. below Forest Service Patrol Station 365 Comment
  CAS-BOT-BC56031  Rhamnus ilicifolia P. C. Everett 1935-6-19 7242 Orange Santa Ana Mts., Trabuco Canyon, 2 mi. below (SW.) Forest Service Patrol Station 365 Comment
  OBI5938  Rhamnus ilicifolia Carl B. Wolf 1931-3-6 1845 Orange W slope Santa Ana mts, Trabuco cyn, 1/2 mi above Trabuco oaks 457 Comment
  RSA1696  Rhamnus ilicifolia Carl B. Wolf 1931-3-6 1841 Orange Trabuco canyon, 1/2 mile above Trabuco Oaks, west slope of Santa Ana Mountains. 457 Comment
  RSA734856  Rhamnus ilicifolia A. C. Sanders, Mitch Provance 2008-5-20 35403 Orange Lomas de Santiago area, Santiago Creek Canyon, c. 3/4 mile below Modjeska Canyon confluence 345 Comment
  RSA788242  Rhamnus ilicifolia Robert F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49630 Orange Santa Ana Mountains: San Juan Canyon, along Ortega Highway (74) across from San Juan Fire Station Comment
  UC592835  Rhamnus tomentella subsp. cuspidata Carl B. Wolf 1933-8-24 Orange Summit of Santiago Pk. Santa Ana Mts. 1731 Comment
  CAS-BOT-BC170435  Rhus integrifolia Helen D. Geis 1902-4-1 s.n. Orange Red Hill near Santa Ana Comment
  RSA678717  Rhus integrifolia Fred M. Roberts, Laura Cohen 2000-3-24 5271 Orange Rancho Mission Veijo Land Conservancy: Tributary to Christanitos Cyn., Flagpole Meadow, upper shady Canyon Trail, about 1.6 NW Sycamore Gate. 170 Comment
  RSA732243  Rhus integrifolia A. C. Sanders, Fred M. Roberts 2008-4-22 35055 Orange Lomas de Santiago, Loma Ridge c. 1/4 mi. SE of VABM Bee, above Bee Canyon landfill on road from Hicks Canyon Haul Rd. to Limestone Canyon, c. 3.5 miles WSW of Silverado 493 Comment
  POM9769  Rhus integrifolia P. A. Munz 1921-2-26 4684 Orange Brea Canyon.. 304 Comment
  UCR192973  Rhus laurina A. C. Sanders, Fred M. Roberts 2008-6-17 35462 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
  IRVC84  Rhus ovata A. S. Boughey 128 Orange [San Juan Canyon], Ortega Hwy, 1mi E San Juan Guard Sta. Santa Ana Mountains Comment
  POM212356  Rhus ovata C. B. Wolf 1931-3-6 1857 Orange Trabuco Canyon, 1.5 mile below Trabuco Camp Grounds 549 Comment
  SD253897  Rhus ovata Jim Riley 2013-12-10 132 Orange San Clemente area; 0.29 miles E intersection Avenida Pico and Camino La Pedriza; just N San Diego County line 74 Comment
  RSA696475  Rhus trilobata J. Vlahos 1974-04 s.n. Orange Holy Jim canyon Comment
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Mar 6 2011
  RSA542519  Rhus trilobata var. quinata Fred M. Roberts, G. A. Marsh 1986-8-27 3108 Orange Santa Ana Mountains: Santiago Peak, Main Divide Truck Trail, 0.1km WNW Summit. 1620 Comment
  CAS-BOT-BC93107  Ribes californicum var. hesperium James R. Shevock 1975-4-6 4132 Orange In Silverado Canyon. Santa Ana Mountains. Cleveleand National Forest. 457 Comment
  LA205460  Ribes californicum var. hesperium W. Pequegnat; 1938-3-19 sn Orange Santa Ana Mountains, junction of Holy Jim and Trabuco Canyons 670 Comment
  UC1127382  Ribes californicum var. hesperium A. Lewis May 1934 422 Orange Trabuco Canyon Cleveland National Forest, Elsinore Quadrangle Comment
  UC1127397  Ribes californicum var. hesperium H. E. Norton 1931-3-14 40 Orange Verdugo Potrero Corona Quadrangle Comment
  UCR250134  Ribes californicum var. hesperium Dick Newell, Judy Booth 2013-12-25 345 Orange Peninsular Range; Santa Ana Mtns., Maple Springs Road, Cleveland National Forest, 1.5 miles NE of Maple Springs gate 722 Comment
  UCR79243  Ribes californicum var. hesperium Steve Boyd, T. S. Ross 1992-5-20 7460 Orange Southern Santa Ana Mtns, San Mateo Canyon Wilderness Area: Western edge of the wilderness in Lucas Canyon along canyon floor from crossing of Lucas Canyon Trail, upstream 0.25 mi to spur trail leading to old mining habitations in side canyon. 412 Comment
  RSA0023263  Ribes californicum var. hesperium Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49779 Orange Santa Ana Mountains: Trabuco Canyon. Comment
  RSA0027776  Ribes californicum var. hesperium Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49693 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  LA205445  Ribes indecorum C. B. Wolf; 1931-3-6 1833 Orange Santa Ana Mountains, 1.5 mi. below Trabuco Oaks along Trabuco Canyon road, W slopes Comment
  UC484197  Ribes indecorum B. D. Stark 1930-2-21 1475 Orange Black Star Creek 457 Comment
  RSA16345  Ribes malvaceum var. viridifolium Percy C. Everett 1935-6-18 7188 Orange Santa Ana Mts., Main Divide Motorway to Santiago Pk., 1 mi. from Ortega Highway. 732 Comment
  RSA0018261  Ribes roezlii Percy C. Everett 1935-6-18 7215 Orange Santa Ana Mts: Summit of Santiago Peak. 1732 Comment
  CAS-BOT-BC186105  Ribes roezlii var. roezlii Carl B. Wolf 1941-8-15 11154 Orange Santa Ana Mts. Summit Santiago Peak 1706 Comment
  LA205521  Ribes speciosum C. B. Wolf; 1931-3-6 1863 Orange 1 mi. N of mouth of Harding Canyon, W. slope of Santa Ana Mts Comment
  RSA30506  Ribes speciosum B. D. Stark 1930-1-28 11209 Orange Claymine Canyon, Santa Ana Mts. 213 Comment
  RSA454953  Ribes speciosum M. B. Dunkle 1934-2-19 3840 Orange San Juan Canyon. 427 Comment
  RSA539409  Ribes speciosum Fred M. Roberts, Karlin G. Marsh 1989-3-7 4198 Orange Lomas De Santiago: Lomas Ridge, Tributary to Hicks Canyon, 2.3 km W Bee canyon. 157 Comment
  RSA734881  Ribes speciosum R. H. McArthur 1934-3-17 s.n. Orange Gypsum Canyon. Comment
  IRVC1315  Ricinus communis D. Van Gorden 1965-5-3 Orange 2008 Meyer Place. Costa Mesa Comment
  POM2747  Ricinus communis P. A. Munz 1918-5-5 2177 Orange Laguna. Comment
  RSA648947  Ricinus communis Mark Breidenbaugh, Caralisa Breidenbaugh 1992-5-15 24 Orange 1/2 mile south of Chino Hills State Park. 167 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
  RSA0014610  Romneya coulteri Justin M. Wood 2010-5-12 1685 Orange Santa Ana Canyon: Santa Ana River floodplain, 0.25 miles north of Coal Canyon wildlife corridor, west of Green River Golf Course of bluff south of the river. 122 Comment
  RSA734669  Romneya coulteri A. C. Sanders, T. B. Salvato 2008-5-13 35373 Orange Lomas de Santiago, Santiago Canyon above (S of) mouth of Hangman Tree Canyon, just below Modjeska Canyon confluence 366 Comment
  SBBG95105  Romneya coulteri S. D. White 1990-7-17 Orange Coal Cyn, ca. 1 mi S of the mouth of the Cyn near the Cyn bottom 274 Comment
  UC1618113  Romneya coulteri Donald G. Nelson 1936-6-5 435 Orange Hills NE of Fullerton 91 Comment
  UCR240080  Romneya coulteri Dick Newell, Don Millar 2012-5-22 252 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Hangmans Tree Rd. at Santiago Creek 350 Comment
  RSA446207  Romneya coulteri var. trichocalyx Claire Kibbe 1936-07 s.n. Orange Santa Ana Canyon. Comment
  POM144067  Rorippa curvisiliqua L. R. Abrams 1901-06 1768 Orange Laguna - Lake Comment
  POM48285  Rorippa curvisiliqua I. M. Johnston 1924-7-10 s.n. Orange Laguna Canyon. Comment
  JEPS47230  Rosa L. M. Booth 1932-6-7 1161 Orange Newport Bay Comment
  CAS-BOT-BC147387  Rosa californica John Thomas Howell 1927-6-6 2445 Orange Santa Ana River bottom, Santa Ana [Canon] Canyon 152 Comment
  POM201872  Rosa californica L. M. Booth 1932-6-7 1161 Orange Newport Lagoon. 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
  POM2665  Rosa californica I. M. Johnston 1918-9-3 2140 Orange San Joaquin Hills. Laguna Canyon. upper end of the 90 degree curve in the road 76 Comment
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Jun 23 2015
  RSA699560  Rubus vitifolius Minor Warne 1934-03 s.n. Orange Santa Ana River Banks Comment
  RSA681861  Rumex acetosella Scott D. White, Michael Honer 2003-6-12 9540 Orange Southwestern Santa Ana Mtn. Foothills: Rancho Mission Viejo. Upper end of Trampas Canyon. 152 Comment
  UCR173937  Rumex conglomeratus A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33006 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
  UCSB50644  Rumex conglomeratus Roberts, Fred; Allen, R. 1982-7-4 Orange Chino Hills: Carbon Canyon, Carbon Canyon Rd., 0.6km by road SW county line; 2.3km NNW Gilman Peak 250 Comment
  RSA666107  Rumex crispus Fred M. Roberts, Michelle Lee 2001-6-18 5496 Orange Rancho Mission Viejo: Chiquita Ridge, 0.3km WNW Median Rancho Survey Marker. PCR Vernal Pool 4. 226 Comment
  UCR16522  Rumex crispus J. S. Davis 1972-5-6 720506- 26 Orange Newport Beach, 1.1 miles north from corner of San Jaquin Hills Road and Back Bay Road. 200 yards east along creek bed 6 Comment
  UCR5920  Rumex crispus David M. Peterson 1966-3-9 660309- 5 Orange 2 miles east of San Juan Capistrano on the road to Elsinore 305 Comment
  RSA466284B  Rumex crispus M. B. Dunkle 1933-4-9 3289 Orange Dana Point. Comment
  POM48516  Rumex maritimus F. M. Reed 1925-8-15 4965 Orange Lakebed-Laguna Canon. Comment
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Jun 25 2013
  CAS-BOT-BC434975  Rumex obtusifolius A. C. Sanders; Fred M. Roberts 2008-7-7 36004 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon at powerline crossing, 1.0 mi. (air) SSE of Walnut Canyon Reservoir. 226 Comment
  POM17440  Rumex salicifolius P. A. Munz 1923-4-1 6597 Orange Laguna Lakes 61 Comment
  RSA0028511  Rupertia physodes N. C. Cooper 1944-6-4 1352 Orange San Juan Canyon, lower camp ground. 457 Comment
  RSA478908  Salicornia bigelovii F. R. Fosberg 1931-8-19 7286 Orange Newport Bay. 0 Comment
  OBI2780  Salicornia pacifica L. Neuenschwander 1970-8-20 60 Orange 4 mi S of Seal Beach, ca 0.5 mi NE of Pacific Coast hwy at Bolsa Chica Salt Marsh Comment
  POM201915  Salicornia virginica L. M. Booth 1932-8-5 1357 Orange Bolsas Marsh. Comment
  IRVC24541  Salicornia virginica J. Johnson 1976-8-10 Orange Newport [Back] Bay. Newport Beach Comment
  RSA70037  Salicornia virginica F. W. Peirson 1924-8-29 5081 Orange 2.5 miles from Balboa on road inland along creek. Comment
  CAS-BOT-BC129735  Salix bonplandiana Helen D. Geis 1902-1-1 552 Orange Santa Ana Comment
  POM201876  Salix exigua L. M. Booth 1932-7-19 1281 Orange Bolsas Marsh. Comment
  POM201933  Salix exigua L. M. Booth 1932-6-9 1177 Orange Santa Ana River, 1 mile from ocean. Comment
  RSA6444  Salix exigua Carl B. Wolf 1932-7-7 3843 Orange Bixby Ave., 1 km. W of Hansen road near town of Los Alamitos. 8 Comment
  RSA679089  Salix exigua Fred M. Roberts 2003-7-24 5970 Orange San Juan Capistrono: San Juan Creek, c.a. 0.1 km NE La Novia Bridge. Along creek on cobbly sand of wash in open southern willow scrub and mulefat scrub. 27 Comment
  RSA698844  Salix exigua Mabel Harvey s.n. Orange Silverado Canyon Comment
  POM2033  Salix gooddingii M. Harbour 1915-4-1 s.n. Orange Olive. Comment
  RSA5404  Salix gooddingii Carl B. Wolf 1932-4-15 2955 Orange Rancho Santa Ana, near Santa Ana River and south of pear orchard, Santa Ana Canyon. 122 Comment
  SD146160  Salix gooddingii Andy C. Sanders 2000-4-19 23337 Orange Pacific Coast, Bolsa Chica Lagoon, along dirt roads in oil field, east of Hwy 1, east of Bolsa Chica St., saltmarsh 10 Comment
  UCR102630  Salix gooddingii B. G. Pitzer 1997-4-15 3153 Orange San Joaquin Hills, Crystal Cove State Park, north of the N end of the City of Laguna Beach. Along Moro Canyon Trail, from beginning to a point c. 1.75 mi. up the canyon. 49 Comment
  LA208697  Salix laevigata Carl Hedin; Joseph Ewan 1932-7-9 7683 Orange Santa Ana River 8 km below Prado (Rincon) [Area 7] Comment
  POM2051  Salix laevigata Philip A. Munz 1918-4-5 2023 Orange Laguna, south of town. Comment
  RSA734891  Salix laevigata A. C. Sanders, Mitch Provance 2008-5-20 35425 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago area, Santiago Creek Canyon, c. 3/4 mile blow Modjeska Canyon confluence. 345 Comment
  RSA735352  Salix laevigata R. H. McArthur 1934-2-10 s.n. Orange Santiago Canyon above Modjeska Comment
  SD227895  Salix laevigata Scott D. White, Brian Leatherman 1997-6-12 5323 Orange Santa Ana Mtn. foothills. East of San Juan Capistrano: San Juan Creek between Hwy 74 bridge and Mission Vieja site, i.e. ca. 2 to 4 mi E of I-15 / Hwy 74 jtn. 45 Comment
  RSA184140  Salix lasiolepis I. L. Wiggins 1966-2-4 20417 Orange Watercourse near mouth of Trabuco Canyon.Waterfront St. near Mission Rock Terminal, San Francisco Comment
  RSA362783  Salix lasiolepis Louis C. Wheeler 1934-1-14 2366 Orange Aliso Creek near Laguna. 76 Comment
  RSA542509  Salix lasiolepis Fred M. Roberts Jr., W. R. Ferren 1987-4-8 3357 Orange Newport Beach: Upper Newport Back Bay, west side, North Star Beach, 0.8 km N Coney Island. 0 Comment
  CAS-BOT-BC128463  Salix lasiolepis var. lasiolepis Carl B. Wolf 1932-2-15 2654 Orange Rancho Santa Ana Botanic Garden, north of administration building. 182 Comment
  CDA3168  Salsola australis R. E. Riefner Jr. 2007-1-2 16 -Jul Orange City of Lake Forest, along Bake Parkway at Dimension Road. Comment
  CDA25914  Salsola tragus T. McCrainie, Mark A. Elvin 2006-9-23 4 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
  POM713  Salsola tragus D. L. Crawford 1915-09 s.n. Orange Huntington Beach. Comment
  RSA5504  Salsola tragus C. B. Wolf 1932-6-28 3758 Orange Bryant Ranch: along western half of north boundary of 40 acre Valencia orange grove at Bryant Ave. and Hansen Road. 9 Comment
  SD152816  Salvia apiana Steve Boyd, Tim Ross 1992-5-20 7484 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). 404 Comment
  UCR193060  Salvia apiana A. C. Sanders, Fred M. Roberts 2008-6-17 35502 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, Windy Ridge Rd., saddle on ridge at head, above the Eastern Transportation Corridor 400 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
  UCR193817  Salvia columbariae A. C. Sanders, Fred M. Roberts 2008-7-16 35876 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Creek wash at and above the confluence of Hangmans Tree Canyon 370 Comment
  UCR261714  Salvia columbariae Dick Newell, Don Millar 2015-3-24 396 Orange South Coast, San Joaquin Hills, on Serrano Ridge 0.25 mi. due east of 73 Toll Rd. overcrossing 249 Comment
  UCR131892  Salvia mellifera J. Mallory, V. McCoy 1995-7-3 6454- 127 Orange Santa Ana Mountains: Blind Canyon, c. 0.5 mi. NE of confluence w/ Santiago Canyon Wash; north of Irvine Lake. 300 Comment
  UCR83406  Salvia mellifera Jan West 1994-4-5 s.n. Orange Upper Bluebird Canyon, SE of Laguna Beach, at a park in the hills east of the head of Bluebird Canyon Road and east of housing developments. Comment
  SEINET12273226  Salvia mellifera J. F. Bright, Wyman, C. 1933-1 8174 Orange Near Laguna(?) Comment
  POM4055  Salvia spathacea I. M. Johnston 1918-5-4 951 Orange Hills back of Laguna Beach. 30 Comment
  RSA434083  Salvia spathacea Unspecified 1920-6-2 s.n. Orange Laguna. Comment
  RSA3157  Sambucus mexicana C. B. Wolf 1931-7-24 2292 Orange lower end of Carbon Canyon. 152 Comment
  RSA477581  Sambucus mexicana Albert J. Perkins 1923-6-24 s.n. Orange Silverado Canyon Comment
  UC1125355  Sambucus mexicana A. Lewis Mar 1934 335 Orange Santa Ana Canyon Corona Quadrangle Comment
  CAS-BOT-BC238827  Sambucus nigra subsp. caerulea Carl B. Wolf 1934-9-21 6140 Orange Silverado Canyon, west slope of Santa Ana Mts., 3/4 mi. below foot of Silverado Motorway 548 Comment
  RSA69001  Samolus parviflorus F. W. Peirson 1924-10-19 s.n. Orange Wintersberg Comment
  RSA0022436  Sanicula R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49793 Orange Santa Ana Mountains: Trabuco Canyon Comment
  RSA542586  Sanicula arguta Fred M. Roberts 1988-3-15 3867 Orange Rancho Mission Viejo: Central Gabino Canyon, 4.4 km SE Point Rancho Survey Marker. 164 Comment
  UC566881  Sanicula arguta H. L. Mason 1926-4-25 2924 Orange 5 mi s of Laguna Comment
  RSA590944  Sanicula arguta Fred M. Roberts 1991-5-2 4783 Orange San Joaqui Hills, Laguna Canyon, Laguna Laurel, Just W of Laguna Canyon Road, 2km N jct El Toro Road, 4.5km E Signal Peak. 110 Comment
  RSA680909  Sanicula crassicaulis Scott D. White 2003-3-21 8810 Orange Santa Ana Mountain Foothills: Rancho Mission Viejo. East-facing slopes above an unnamed tributary to San Juan Creek. 122 Comment
  UCR192226  Sanicula crassicaulis A. C. Sanders, Fred M. Roberts 2008-5-6 35267 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
  RSA471481  Sanicula graveolens Christopher Davidson 1977-5-18 5606 Orange Cleveland National Forest; Santiago Peak (on Orange-Riverside Co. line) 1706 Comment
  RSA802286  Sanicula menziesii Keith E. Hoffmaster 1937-4-25 753 Orange Ladd can., Santa Ana Mts. PR8. Comment
  SD37460  Sarcocornia pacifica Edith A. Purer 1932-8-31 4876 Orange Moist location on sand dunes. Comment
  JEPS27447  Sarcostemma cynanchoides subsp. hartwegii John Thomas Howell 1927-7-24 2819 Orange Santa Ana Canyon, Rancho Santa Ana 152 Comment
  UCR66991  Schinus terebinthifolius A. C. Sanders 1990-10-6 10201 Orange South Coast, Newport Back Bay, SW side at North Star County Beach, SW end of the bay, c. 2 km inland from Hwy 1/ Pacific Coast Hwy 3 Comment
  IRVC21660  Schismus barbatus R. L. Allen, Fred M. Roberts, Jr. 1982-7-4 A 672 Orange Chino Hills: Carbon Canyon, Carbon Canyon Rd. (State Hwy 142), 1.1 - 1.5 mi SW of the San Bernardino County line. Santa Ana Mountains Comment
  CAS-BOT-BC111473  Schoenoplectus americanus John Thomas Howell 1927-7-19 2805 Orange In shallow water, Santa Ana River bottom, Santa Ana Canon 152 Comment
  RSA797438  Schoenoplectus americanus Keith E. Hoffmaster 1927-6-13 s.n. Orange Santa Ana. Comment
  UCD50097  Schoenoplectus americanus H. E. Wahlberg 1924-5-1 2 Orange Three Square Bulrush. Bolsa Chica Gun Club, Harlington Beach. Comment
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Jan 31 2012
  RSA357009  Schoenoplectus californicus Robert F. Thorne 1975-4-6 4573 Orange San Joaquin Marsh: Near Irvine and coast. Comment
  RSA623978  Schoenoplectus californicus K. Scott 1921-3-5 s.n. Orange Modjeska s Dam. Comment
  RSA718961  Schoenoplectus maritimus Fred M. Roberts, Robert L. Allen 2006-10-8 6419 Orange San Juan Capistrano: San Juan Creek Flood Control Channel, c.a. 0.2 to 0.3km N Stonehill Dr. bridge and 1.1km SSE Marco Forster Jr. High Sch. 4 Comment
  POM50487  Schoenoplectus maritimus Helen D. Geis 501 Orange Peat Lands Comment
  RSA89  Scirpus acutus var. occidentalis J. T. Howell 1927-7-5 270 Orange West side, Rancho Santa Ana [Botanic Garden]. 152 Comment
  IRVC29874  Scirpus cernuus Mark A. Elvin, D. Kelch 2006-12-9 5302 Orange Newport Backbay; Big Canyon, lower end. Southern Coastal 3 Comment
  UCR207546  Scirpus cernuus O. F. Clarke, Roger E. Reinke 2004-11-14 s.n. Orange South Coast, Newport Back Bay 3 Comment
  UCR208888  Scirpus maritimus Jeanne Paxton 1934-4-10 s.n. Orange South Coast, marshes back of Santa Ana Country Club 3 Comment
  UCSB47591  Scrophularia californica Roberts, Fred 1980-4-5 Orange Highway 74, San Juan Canyon, 0.4km sw Lower San Juan Picnic Ground, Santa Ana Mountains, 390 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
  RSA788820  Scrophularia californica subsp. floribunda Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49805 Orange Santa Ana Mountains: Trabuco Canyon. Comment
  UC1011912  Scrophularia californica subsp. floribunda F. W. Pennell and E. M. Harvey 1949-6-29 26811 Orange above San Juan Capistrano (pass at summit of Ortega Hwy) 792 Comment
  SEINET12347787  Scrophulariaceae S. A. Thompson, Rawlins, J. E. 1988-8-27 5262 Orange Cleveland National Forest, 3.8 mi E of San Juan Hot Springs on CA 74 370 Comment
  RSA445380  Scutellaria tuberosa Albert J. Perkins 1919-4-13 s.n. Orange Modjeska Ranch. Comment
  CAS-BOT-BC240064  Secale cereale Helen D. Geis 1902-3-1 s.n. Orange Foothills Santa Ana Comment
  UCD170928  Sechium edule D. E. Bramlet 2005-10-13 3916 Orange South Coast: end of Kline Drive, 650 ft south of Orchard Drive in Santa Ana Heights; 2600 ft SW of the S end of John Wayne Airport. 15 Comment
  RSA15  Selaginella bigelovii John Thomas Howell 1927-7-24 473 Orange Claymine Canyon, near Sierra Peak 167 Comment
  RSA301980  Selaginella bigelovii James R. Shevock 1970-12-20 573 Orange Silverado Canyon 579 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
  RSA631395  Selaginella bigelovii Valerie Sosa, LeRoy Gross 1999-6-7 476 Orange West side of Modjeska Peak, along Main Divide Road. 1448 Comment
  RSA594877  Selaginella bigelovii Fred M. Roberts, Rick Riefner 1992-2-15 4832 Orange Lomas De Santiago: Foothill Ranch north of El Toro Road, c. 4.7 kilometers SSE Bolero Lookout. 295 Comment
  UCSB56506  Senecio aphanactis Marsh, K. 1978-3-16 Orange U.C. Irvine Ecological Preserve: Hill #1 51 Comment
  UCR142523  Senecio californicus D. E. Bramlet 2000-4-7 2948 Orange Peninsular Ranges: Santa Ana Mts. region, Upper Blind Canyon beside the SCE maintenance road and 762m west of the mainstem of Blind Canyon; 1.7 km east of Weir Canyon 108 Comment
  RSA1370  Senecio flaccidus var. douglasii B. D. Stark 1929-11-2 1441 Orange Santa Ana River bottom, Rancho Santa Ana 122 Comment
  UCSB48048  Senecio flaccidus var. douglasii Roberts, Fred 1981-11-15 Orange Santa Ana Mtns.: San Juan Canyon, Hwy 74, across road from entrance to Lower San Juan Picnic Ground 436 Comment
  SBBG122031  Senecio linearifolius S. D. White 2003-7-7 9613 Orange W of intersection of Shady Cyn Crk with Bonita Cyn Drive, UC Irvine Campus 70 Comment
  RSA791870  Senecio vulgaris R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49646 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. Comment
  CAS-BOT-BC364599  Senecio vulgaris Carl B. Wolf 1932-6-28 3766 Orange Bryant Ranch, along Western half of North boundary of 40 acre Valencia Orange Grove; Bryant Ave. & Hansen Rd. Comment
  UCR130358  Senna didymobotrya A. C. Sanders, Mark A. Elvin 2003-10-12 27315 Orange Southern Coastal Slope, Irvine, UCI Arboretum, UCI campus near intersection of Jamboree Blvd. and Campus Dr. 15 Comment
  SEINET3876377 Image available Sequoia sempervirens Pamela G. Jones 1967-9-11 30 Orange Yorba Linda City Park.; 0 Comment
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May 7 2015
  UCR112115  Sesuvium verrucosum A. C. Sanders, D. Malueg, K. D. Jones 2000-4-19 23334 Orange Pacific Coast, Bolsa Chica Lagoon, along dirt roads in oil field, east of Hwy 1, east of Bolsa Chica St. 11 Comment
  CAS-BOT-BC438201  Sesuvium verrucosum D. L. Crawford 1916-8-1 s.n. Orange Laguna Beach Region. Laguna Canon [Canyon] Comment
  SEINET5866751 Image available Setaria megaphylla R. E. Riefner Jr. 2005-1 05 -731 Orange City of Huntington Beach, Huntington Central Park near Goldenwest St. USGS Quad: Seal Beach 1 Comment
  CAS-BOT-BC243590  Setaria parviflora Ira L. Wiggins 1965-9-26 20260 Orange Roadside at west end of Orangethorpe Estates subdivision near Atwood. Comment
  RSA6048  Setaria parviflora C. B. Wolf 1932-6-13 3725 Orange Fullerton, Rose Drive 53 Comment
  UCR16330  Sidalcea malviflora M. Wexler 1973-5-13 s.n. Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, Los Pinos Forestry Camp Road, 0.7 mi. west of State Hwy 74 and 5.29 mi. from Orange County line 610 Comment
  UCR241076  Sidalcea malviflora Dick Newell, Don Millar 2013-4-30 328 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago; lower Hangman's Tree Canyon, 0.1 mi. west of Santiago Canyon Rd. 368 Comment
  RSA701970  Sidalcea malviflora subsp. malviflora Fred M. Roberts, David E. Bramlet 2003-6-20 5928 A Orange Rancho Mission Viejo: Donna O Neill Land Conservancy, tributary to Christianitos Cyn, along Back Road, 1.48 km WNW Sycamore Gate. 189 Comment
  UC153881  Sidalcea neomexicana LeRoy Abrams 1903-4-17 3257 -a Orange between Tustin and Myford Comment
  CAS-BOT-BC205744  Sidalcea neomexicana subsp. thurberi Carl B. Wolf 1936-5-25 7822 Orange East of Los Alamitos, at Northwest corner of Hansen Road & Bryant Ave. 15 Comment
  RSA15944  Sidalcea neomexicana subsp. thurberi Percy C. Everett 1935-4-27 6691 Orange Bryant Ranch, NW corner of Bryant and Hansen Rd. [Los Angeles County]. 30 Comment
  RSA17087  Sidalcea neomexicana subsp. thurberi Carl B. Wolf 1936-5-25 7822 Orange East of Los Alamitos, at NW corner of Hansen Rd. and Bryant Ave. 15 Comment
  RSA88053  Sidalcea neomexicana subsp. thurberi C. L. Hitchcock 1952-5-30 s.n. Orange About 100 yards north of Katella Ave. to west of Hanson St., about 11 miles east of Long Beach Comment
  RSA285  Silene antirrhina J. T. Howell 1928-2-25 851 Orange Between Nolina and Bee Canyon, Rancho Santa Ana. 152 Comment
  RSA590953  Silene antirrhina Fred M. Roberts, David E. Bramlet 1991-4-21 4772 Orange Dana Point; Headlands, 1.7km SSW Dana Hills High School 0.4m WNW Dana Point Harbor pier. 79 Comment
  JEPS50925  Silene gallica L. M. Booth 1932-5-12 1016 Orange Newport Bay Comment
  JEPS50934  Silene gallica Alice King March 1908 Orange Santa Ana Comment
  RSA683063  Silene gallica Fred M. Roberts 2003-3-19 5611 Orange Donna O Neill Land conservancy: Tributary W of Cristianitos Cyn., 1,625m NNW Sycamore Gate and 483m W Cristianitos Rd. 174 Comment
  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
  UCR281559  Silene gallica Mitch Provance, Jeremiah George 2017-3-20 317- 112 Orange West Coyote Hills, Fullerton, vicinity of Utility Access Roads E of Gilbert Street and N of Castlewood Dr., on land previously occupied by oil fields. 137 Comment
  RSA438888  Silene laciniata subsp. major M. B. Dunkle 1933-5-30 3375 Orange Santa Ana Canyon. Comment
  RSA507174  Silene laciniata subsp. major Jeri Hirshberg 1988-6-7 s.n. Orange Santa Ana Mountains, head of Gypsum Canyon 412 Comment
  CAS-BOT-BC175065  Silene verecunda L. R. Abrams 1901-6-15 1846 Orange Santiago Peak Comment
  RSA647891  Silybum marianum Mark Breidenbaugh, Caralisa Breidenbaugh 1992-5-1 12 Orange 1/2 mile south of Chino Hills State Park. 198 Comment
  UC1929781  Sinapis arvensis Scott D. White, Amanda Duchardt 2003-3-27 8849 Orange SANTA ANA MOUNTAIN FOOTHILLS: Canyon bottom and west facing slopes above Canada Gobernadora. Comment
  CAS-BOT-BC75037  Sisymbrium altissimum John Thomas Howell 1927-6-6 2448 Orange Santa Ana River bottom, Santa Ana Canyon. 152 Comment
  CAS-BOT-BC135368  Sisyrinchium Marcus E. Jones 1926-4-28 s.n. Orange Gaviota Canyon [Canon] Comment
  RSA703845  Sisyrinchium bellum D. E. Bramlet 2003-3-20 3348 Orange Donna ONeill Reserve. NE corner of the reserve, 152m west of Cristianitos Rd. and 1.9km north of the E-W access road. 134 Comment
  SEINET7073415  Sisyrinchium bellum A. G. Vestal 1963-4-24 s.n. Orange La Paz Canyon, Rancho Mission Viejo. Coordinate datum: NAD27. Comment
  UCR228785  Sisyrinchium bellum Dick Newell, Don Millar 2011-5-10 154 Orange Peninsular Range; Santa Ana Mtns., above east side of Fremont Canyon on service road just below Lakeview Rd. 455 Comment
  IRVC24222  Sitanion jubatum Fred M. Roberts, Karlin G. Marsh, Gordon Marsh 1985-10-1 2279 Orange Silverado Canyon, Silverado Canyon Road, 1.0km by road E junction Santiago Canyon Road. Santa Ana Mountains 320 Comment
  RSA603306  Solanum americanum Scott D. White, B. Leatherman 1997-6-12 5309 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
  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
  UCR240197  Solanum americanum C. J. Minar 1994-4-16 02 Orange South Coast, Santa Ana, on the bank of Santiago Creek, 0.25 mi. east of Santiago St. and 0.25 mi. west of Amtrack RR bridge, east of I-5 Fwy & south of Garden Grove (22) Fwy 50 Comment
  SEINET5571704  Solanum clokeyi H. S. Gentry 1962-1 19831 Orange Huntington Botanical Garden. Comment
  RSA553909  Solanum douglasii Scott D. White 1992-9-29 845 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
  UCR100461  Solanum douglasii B. G. Pitzer 1996-4-30 2762 Orange South Coast, Upper Newport Bay, Calif. Dept. Fish & Game Ecological Reserve, off (W of) Jamboree Road 6 Comment
  UCR224154  Solanum douglasii Fred M. Roberts 2008-5-27 7001 Orange South Coast, Dana Point Headlands, CNLM Preserve, along north slopes above Dana Strand Beach, 0.8 km west norhwest of Marine Institute, Dana Point Harbor 75 Comment
  RSA0020075  Solanum douglasii Kenneth Beard s.n. Orange Santa Ana riverbank Comment
  RSA733736  Solanum douglasii Goldie Peale 1932-5-1 s.n. Orange Outskirts of Orange. Near Lemon Heights Blvd. Comment
  SDSU11166  Solanum douglasii R. M. Beauchamp 1968-2-17 774 Orange On slope on west side of El Toro Road, 7 miles east of Interstate 5. Comment
  UCSB18231  Solanum douglasii Daniel, Dick 1964-3-28 Orange Silverado Canyon Road; 5.1 miles NW of junction with Santiago Canyon Road; approximately 10 miles W of Irvine Lake 365 Comment
  RSA733737  Solanum elaeagnifolium Unspecified s.n. Orange Costa Mesa. Comment
  UCD126949  Solanum nigrum R. Townsend 1939-12-28 158 Orange Highway west of Atwood. Comment
  RSA427452  Solanum umbelliferum F. R. Fosberg 1931-6-21 S- 5079 Orange Lower Santiago Canyon. Comment
  RSA5320  Solanum umbelliferum B. D. Stark 1932-12-30 4475 Orange Rancho Santa Ana. River bottom below Mexican houses. 122 Comment
  RSA733735  Solanum umbelliferum Jeanne Paxton 1934-2-25 s.n. Orange Sugar Loaf Canyon, Arch Beach Comment
  UC1125059  Solanum umbelliferum A. Lewis 1934-2-1 266 Orange Santa Ana Canyon 152 Comment
  UCSB18243  Solanum umbelliferum Daniel, Dick 1964-3-28 Orange Silverado Canyon Road, 5.1 miles NW from junction with Santiago Canyon Road, approximately 10 miles W of Irvine Lake, 17 miles by air E of Orange 365 Comment
  RSA747637  Solanum umbelliferum var. glabrescens Fred M. Roberts, Lee Ann Carranza 2008-4-16 6916 Orange Dana Point: Dana Point Headlands, CNLM Preserve, near Strands Road Gate, 0.8km WNW Marine Institute, Dana Point Harbor. 71 Comment
  UCR131698  Solanum xanti C. B. Wolf 1931-3-6 01862 Orange Santa Ana Mtns., 1 mile north of base of Modjeska Grade, west slope of mtns. 305 Comment
  UCR97816  Solanum xanti Scott D. White 1997-3-28 4831 Orange Santa Ana Mountains, Above Modjeska Canyon, proposed water tank site. 488 Comment
  SD247738  Solanum xanti R. F. Thorne, C. W. Tilforth, E. W. Lathrop. 1977-4-27 49696 Orange Northern Santa Ana Mountains: Sierra Peak. Comment
  RSA735963  Solanum xanti var. xanti Scott D. White, Justin M. Wood 2008-4-24 11911 Orange Chino Hills: SCE powerline corridor, SE of Carbon Canyon Rd and N of Chino Hills State Park. 366 Comment
  RSA7474  Solidago californica C. B. Wolf 1933-8-24 5398 Orange Summit of Santiago Peak, Santa Ana Mountains 1732 Comment
  POM202167  Sonchus oleraceus L. M. Booth 1932-6-15 1193 Orange Marsh border East of Huntington Beach. Comment
  RSA730994  Sonchus oleraceus Fred M. Roberts 2006-11-15 6468 Orange Santa Ana Cyn., Santa Ana River, north bank, 1.1 km ENE Imperial Hwy crossing. 85 Comment
  CAS-BOT-BC374658  Sonchus oleraceus Ira L. Wiggins 1966-2-1 20406 Orange Orange grove just east of Letters & Science building, California State College at Fullerton Comment
  UCR181151  Sorghum bicolor R. E. Riefner Jr. 2005-10-5 05- 710 Orange South Coast, Irvine, Irvine Blvd. at The Groves Rd. 84 Comment
  UCR197681  Sorghum bicolor A. C. Sanders, Fred M. Roberts 2008-9-18 36066 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge 330 Comment
  IRVC15382  Sorghum halepense J. B. Anderson 1966-5-2 634 Orange MacArthur Blvd. near the Newport Freeway. southern coastal Comment
  IRVC1830  Sorghum halepense I. L. Wiggins 1965-9-26 20 257 Orange Roadside about 1.5mi above the mouth of Carbon Canyon. southern coastal Comment
  IRVC1831  Sorghum halepense J. B. Anderson 1966-5-2 634 Orange MacArthur Blvd. near the Newport Freeway. southern coastal Comment
  CLARK-A1528-5031  Spartina foliosa John C. Roos 1937-9-1 427 Orange Seal Beach Comment
  IRVC29761  Spartina foliosa Barry S. Nerhus, Mark A. Elvin 2006-11-4 14 Orange Huntington Beach, Bolsa Chica Wetlands, SW portion of Reserve beside Pacific Coast Highway. Southern Coastal 0 Comment
  UCD92997  Spartina foliosa F. M. Reed 1927-11-23 5676 Orange at Anaheim. Comment
  IRVC2454  Spartium junceum E. Cowper 1964-4-25 s.n. Orange Laguna. Southern Coastal Comment
  RSA659991  Spartium junceum Steve Teh 1994-4-28 10 Orange Modjeska Grade rd and S18. Comment
  UCR5168  Spergula arvensis Barbara T. Gittins, O. F. Clarke 1966-3-19 889 Orange Pacific slope, Irvine Ranch, east of University of California Irvine campus, Newport Beach 91 Comment
  RSA0097075  Spergularia Scott D. White 1998-3-24 6228 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). 37 Comment
  RSA0097854  Spergularia bocconi Steve Boyd, Timothy S. Ross 1992-5-19 7431 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of the wilderness along Lucas Canyon Trail in Aliso Canyon. 335 Comment
  CLARK-A1045-1002  Spergularia marina George K. Helmkamp 1978-3-3 Orange Newport Beach beside Newport Backbay; Newport Beach 7.5'Q Comment
  RSA0098538  Spergularia marina L. M. Booth 1932-5-12 1010 Orange Newport Beach. Comment
  RSA0011085  Spergularia salina James Snow 1932-1 6 Orange Bryant Ranch, near Long Beach. Station no. 4. Comment
  RSA0097293  Spergularia salina Keith E. Hoffmaster 1935-2-17 842 Orange Prob[ably] near Costa Mesa, at bluff by Santa Ana River. Comment
  RSA610223  Spergularia salina Fred M. Roberts, Julie Vanderwier 1997-4-29 5021 Orange Bolsa Chica Salt Marsh; (US Fish & Wildlife Service cell 17) west of old oil field, 0.8 km. S SE Chica Survey Mark. 0 Comment
  IRVC24744  Spergularia villosa Fred M. Roberts 1986-4-29 2822 Orange Turtle Rock, above corner of Ridgerout Dr. and Turtle Rock Dr., 1.1km SE French Hill, Irvine 141 Comment
  RSA0127421  Spergularia villosa Fred M. Roberts 2016-3-17 8016 Orange San Joaquin Hills: City of Irvine, Ridge between Coyote Canyon and Bommer Canyon along Turtle Ridge Trail, 0.6 km NNE Signal Peak and 1.1 km SW Cattle Camp. 314 Comment
  RSA0098710  Spergularia villosa L. M. Booth 1932-5-24 1089 Orange Near Bay Shore Camp, Newport Bay. Comment
  UCR193833  Stachys ajugoides A. C. Sanders, Fred M. Roberts 2008-7-16 35834 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Dripping Springs off Limestone Canyon, c. 7.5 mi. ESE of Tustin 391 Comment
  RSA0125886  Stachys rigida subsp. quercetorum Fred M. Roberts Jr. 2012-5-10 7573 Orange San Joaquin Hills: Buck Gully, south tributary, north slope Pelican hill, just north of Pelican Hills Drive, 0.7 km N Pelican Hill summit. 154 Comment
  RSA446585  Stachys rigida subsp. quercetorum Unspecified 1920-6-1 s.n. Orange Laguna. Comment
  RSA562760  Stachys rigida subsp. quercetorum Steve Boyd, T. S. Ross 1992-5-19 7436 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of the wilderness in Lucas Canyon from crossing the creek by Lucas Canyon Trail, downstream to confluence with Aliso Canyon. 274 Comment
  RSA717155  Stachys rigida subsp. rigida Fred M. Roberts, Chris M. Barnhill 2005-9-27 6284 Orange San Juan Capistrano: San Juan Creek wash, east of La Novia Road bridge, 1.4 km E Mission San Juan Capistrano. 27 Comment
  RSA685923  Stellaria media Fred M. Roberts 2003-3-27 5631 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
  UC484253  Stellaria media C. B. Wolf 1931-3-6 Orange Trabuco Canyon Santa Ana Mts. (Trabuco Camp Grounds, w slope of Santa Ana Mts) 609 Comment
  RSA2075  Stellaria media C. B. Wolf 1931-3-6 1854 Orange Trabuco Canyon at Trabuco Campgrounds west slope of Santa Ana Mts. 610 Comment
  SDSU4468  Stellaria media R. M. Beauchamp 1968-2-17 772 Orange 2 miles north of El Toro Road intersection. Comment
  UCR13409  Stenotaphrum secundatum William A. Hunt 1972-4-9 720409- 02 Orange South Coast, San Clemente, San Clemente Beach State Park, day use area, bluffs directly overlooking Pacific Ocean 15 Comment
  UCR67009  Stenotaphrum secundatum A. C. Sanders 1990-10-6 10191 Orange Newport Bay, North Star County Beach Area on the SW end of the Bay, c. 2 km inland of Hwy 1. 3 Comment
  SD240903  Stephanomeria diegensis A. C. Sanders, Fred M. Roberts 2008-8-7 35995 Orange Peninsular Range: Santa Ana Mountains: lower Weir Canyon, at narrow gorge ca. 0.6 mile above mouth of canyon at Irvine Ranch gate (Orange/Blac Star Canyon 7.5'Q) 188 Comment
  POM201781  Stephanomeria exigua subsp. coronaria L. M. Booth 1932-7-27 1325 Orange Corona del Mar, Newport Beach, Bluff Ravine Comment
  SD181787  Stipa coronata Valerie Soza, LeRoy Gross 1999-6-7 491 Orange Santa Ana Mountains, west side of Modjeska Peak, along Main Divide Road. Open, west-facing slope, on upper side of dirt road. 1448 Comment
  LA9459  Stipa pulchra LeRoy Abrams; 1903-4-18 3269 Orange Trabuco canyon, Capistrano Comment
  UCR281545  Stylocline gnaphaloides Mitch Provance, Jeremiah George 2017-3-20 317- 116 Orange West Coyote Hills, Fullerton, vicinity of Utility Access Roads E of Gilbert Street and N of Castlewood Dr., on land previously occupied by oil fields. 137 Comment
  RSA0104826  Stylocline gnaphaloides J. B. Anderson 1966-4-9 526 Orange San Joaquin Hills: On road between Lindoln School-Signal Peak on near level hilltop. 182 Comment
  POM301519  Styrax redivivus J. C. Roos 1937-5-10 2326 Orange East of San Juan Capistrano. Comment
  RSA263773  Styrax redivivus Robert Harvey H- 85 -66 Orange Tan Mine Canyon. Comment
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Oct 15 2013
  RSA5402  Styrax redivivus Carl B. Wolf 1932-12-19 4441 Orange Main divide of Santa Ana Mts. between Sierra Peak and Skyline Drive. 762 Comment
  UCD170074  Styrax redivivus R. F. Thorne; E. W. Lathrop, W. Wisura 1977-7-8 49598 Orange Santa Ana Mountains: rocky ravine tributary to San Juan Canyon, along Ortega Highway (74) about 2 miles above San Juan Fire Station. 345 Comment
  UC729951  Suaeda calceoliformis Carl B. Wolf 1932-6-28 Orange Bryant Ranch; edge of field on Bryant Ave 91 Comment
  RSA5854  Suaeda calceoliformis C. B. Wolf 1932-6-28 3789 Orange Bryant Ranch, near fence., 100 ft. south of NW corner of NW 1/4 of S.E. 1/4 of sect 27. 9 Comment
  RSA758776  Suaeda esteroa Anstruther Davidson 1914-10-1 2989 Orange Newport Comment
  RSA758777  Suaeda esteroa Anstruther Davidson 1907-9-1 1778 Orange Newport Comment
  UCR108425  Suaeda esteroa L. C. Wheeler 1946-9-28 6385 Orange Newport Bay, Newport Bay 5 Comment
  RSA438591  Suaeda taxifolia E. A. Purer 1932-03 15767 Orange Coast Highway at Huntington Beach Comment
  RSA791013  Suaeda taxifolia W. R. Ferren, S. A. Whitmore 1980-8-27 2332 Orange Newport Backbay along Backbay Drive, ca. 1.5 km northeast of Route 1, Newport Beach. Comment
  UC971738  Suaeda taxifolia L. M. Booth 1932-6-29 1232 Orange Newport Bay Comment
  UCD169515  Suaeda taxifolia Rebecca T. Vo 2010-6-5 s.n. Orange South Coast, Huntington Beach, Santa Ana River Bike path on west side of the mouth of the Santa Ana River, near Orange County Sanitation Treatment Plant, north of Pacific Coast Hwy and east of Brookhurst St. 1 Comment
  UCSB48369  Suaeda taxifolia Roberts, Dar; Roberts, Fred 1982-4-19 Orange Newport Beach: Corona del Mar, Bayside Dr.; 3.0 km. SSW Corona del Mar High School; E of Balboa Island 3 Comment
  UCSB48383  Suaeda taxifolia Roberts, Dar; Roberts, Fred 1982-4-19 Orange Newport Beach: Upper Newport Beach Backbay; off Back Bay Dr.; 1.5 km. NNW Corona del Mar High School 1 Comment
  UC1119928  Symphoricarpos mollis A. Lewis Apr 1934 376 Orange 0.50 mi s Rabbit Canyon; Corona Quad. 304 Comment
  UCR3182  Symphoricarpos mollis Chuck Elliott 1964-5-2 s.n. Orange Los Angeles Basin Region, Carbon Canyon 61 Comment
  RSA581436  Symphoricarpos mollis Fred M. Roberts, Gordon Marsh 1989-5-21 4354 Orange Santa Ana Mountains: small tributary canyon to Santiago Canyon, Flemming Regional Park, just E of Modjeska, ca. 3.3 km WSW Laurel Springs. 451 Comment
  UCR258868  Symphyotrichum defoliatum Naomi Fraga, Duncan S. Bell, Sarah J. De Groot 2009-9-11 3155 Orange Peninsular Ranges; Santa Ana Mountains region, Blue Jay Campground 910 Comment
  UCR267155  Symphyotrichum subulatum 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
  UCR193816  Tamarix ramosissima A. C. Sanders, Fred M. Roberts 2008-7-16 35877 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Creek wash at and above the confluence of Hangmans Tree Canyon 370 Comment
  SBBG52719  Tauschia arguta C. Davidson 1977-5-18 5617 Orange Bear Springs, Santa Ana Mtns 1219 Comment
  RSA97412  Tauschia parishii F. W. Peirson 1923-5-6 3501 Orange open area at summit of Santiago Peak, Santa Ana Mountains. 1732 Comment
  RSA699304  Tecoma capensis M. Funakoshi 1941-11-27 s.n. Orange Santa Ana. Comment
  UC284848  Tetragonia tetragonoides P. A. Munz 1923-1-4 7321 Orange 2 mi nw of Laguna (upper edge of Laguna Beach); Laguna Beach Comment
  UCR158465  Tetragonia tetragonoides Adrian Wolf 1998-5-27 237 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
  POM17615  Tetragonia tetragonoides P. A. Munz 1923-4-1 7321 Orange Laguna Beach, upper edge of beach, 2 miles north-west of Laguna. Comment
  RSA542416  Thalictrum fendleri Fred M. Roberts, Karlin G. Marsh 1987-5-14 3441 Orange Santa Ana Moutains: Upper Trabuco Canyon, Trabuco Canyon Trail , 1.3 km NE Los Pinos Peak 1231 Comment
  RSA787111  Thalictrum polycarpum Keith E. Hoffmaster 1927-4-8 498 Orange Santa Ana Mountains. Comment
  RSA162749  Thalictrum polycarpum J. D. Olmsted 1959-4-17 398 Orange Rattlesnake Rock north of Hidden Ranch along Black Star Canyon Road: 0.5 mile WSW of Beacon Pines Ranch. 747 Comment