Search Results — 2000 specimen records retrieved (1598 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
  JEPS61199  Abronia maritima Alice King May 1908 Orange Newport Comment
  POM201769  Abronia maritima L. M. Booth 1932-6-15 1189 Orange S.E. of Huntington Beach. Comment
Read comments
Feb 11 2015
  RSA585055  Abronia maritima D. Atwood 1993-3-28 17715 Orange Bolsa Chica Ecological Reserve, California Dept. of Fish and Game. 0 Comment
  SBBG69882  Abronia maritima M. N. Ackley 1928-9-22 Orange Sunset Beach Comment
  CAS-BOT-BC229407  Abronia umbellata David D. Keck 1933-9-21 2535 Orange Sunset Beach Comment
  RSA234508  Abronia umbellata James Henrickson 1970-7-24 5008 Orange 3 miles NW of Huntington Beach on sandy ''Rabbit'' Island in Bolsa Chica Salt March near Inner Bolsa Bay. 1 Comment
  UC1930976  Abutilon palmeri R. E. Riefner Jr. 2006-9-5 06 -418 Orange Southern Coast: Corona del Mar, Ocean Blvd. near Iris Ave. Comment
  RSA651412  Acacia baileyana L. Holderman 1949-2-13 s.n. Orange Collected on Lemon Heights, 5 mi. west of Santa Ana. 54 Comment
  RSA0028022  Acacia longifolia Fred M. Roberts 2012-9-6 7695 Orange San Joaquin Hills: Buck Gully, Buck Gully Trail, west end near Poppy Street entrance, 2.1 kilometers WNW Pelican Hill summit. 37 Comment
  SEINET946800  Acacia longifolia R. J. Barr 1964-1 64 -589 Orange Roadside near Capistrano Beach Comment
  IRVC29884  Acacia saligna Mark A. Elvin, D. Kelch, Barry S. Nerhus, Patricia Iluore 2006-12-9 5325 Orange Newport Backbay; along Bayside Drive ca. 100 m W of Eastbluff Dr. Southern Coastal 5 Comment
  POM17839  Acer macrophyllum Philip A. Munz 1923-9-7 7732 Orange Santa Ana Mountains: on trail from Holy Jim Canyon to Santiago Peak 1220 Comment
  UCR234158  Acer macrophyllum Dick Newell, Judy Booth 2012-3-25 234 Orange Peninsular Range; Santa Ana Mtns., Maple Springs Road, 1.5 miles above Maple Springs entrance 615 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
  RSA751317  Achillea millefolium A. C. Sanders, Fred M. Roberts 2008-5-6 35271 Orange Lomas de Santiago, upper Limestone Canyon, 2.9 mi. NNW of El Toro 366 Comment
  RSA550602  Achnatherum coronatum Fred M. Roberts 1989-4-25 4311 Orange Santa Ana Mountains: East Rim of Blind Canyon 8.5 kilometers SW Sierra Peak, ca. 1.4 kilometer N Irvine Lake spilway., UTM Z11 37 40 100m N, 4 33 000m E 366 Comment
  RSA758893  Achnatherum coronatum A. C. Sanders, Fred M. Roberts 2008-4-22 35006 Orange Lomas de Santiago, lower Hicks Canyon haul road, just above Irvine Ranch gate and road to cement plant, c. 1 mile NE of Rattlesnake Reservoir 213 Comment
  UCSB18873  Acmispon glaber Swenson, Ronald 1963-4-12 Orange South side of Back Newport Bay, about 250 yards south of salt works, Newport Comment
  RSA0127414  Acmispon glaber var. glaber Fred M. Roberts 2016-3-17 8009 Orange San Joaquin Hills: City of Irvine, Bommer Canyon, east fork, 0.3 km ESE Cattle Camp near East Fork Trail. 152 Comment
  SBBG3414  Acmispon heermannii var. heermannii J. M. Tucker 1941-5-30 261 Orange Ortega Hwy, 2 to 3 mi E of western boundary of Cleveland Nat Forest Comment
  CAS-BOT-BC29186  Acourtia microcephala J. T. Howell 1927-6-22 2571 Orange Hills on north side of Santa Ana Canyon 152 Comment
  SD212462  Acourtia microcephala A. C. Sanders, Fred M. Roberts and Michelle Balk 2006-7-20 33021 Orange Santa Ana Mountains; San Juan Canyon from Lower San Juan Picnic Area to ca. 1.0 mile downstream, parallel to Highway 74 and near Riverside County line. 366 Comment
  SEINET2429609  Acourtia microcephala Lawrence M. Booth 1932-7-4 1243 Orange Newport Lagoon Comment
  UC639077  Acourtia microcephala P. C. Everett 1939-8-5 Orange Anaheim Comment
  IRVC25000  Acroptilon repens Fred M. Roberts, Helen Camp & Bill Bretz 1986-6-20 3025 Orange San Joaquin Freshwater Marsh, near Campus Dr., 1.7km NNW UC Irvine campus center, Irvine 2 Comment
  SD143761  Adenostoma fasciculatum Scott D. White 1997-3-28 4848 Orange Santa Ana Mts., above Modjeska Canyon 424 Comment
  RSA542407  Adenostoma fasciculatum var. fasciculatum Fred M. Roberts 1988-4-8 3895 Orange Lomas de Santiago: Loma Ridge, Central Linestone Canyon, 4.1 kilometers NNW Bolero Lookout. 323 Comment
  UCSB48001  Adenostoma fasciculatum var. fasciculatum 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
  UCR240175  Adiantum capillus-veneris R. E. Riefner Jr. 2012-2-23 12- 43 Orange South Coast, city of Laguna Beach, Treasure Island Beach, vicinity of Wesley Drive and South Coast Hwy 1 Comment
  RSA695487  Ageratum houstonianum Ruth Greenwald, Virginia Pritchard 1938-05 s.n. Orange Santa Ana. Comment
  CAS-BOT-BC295626  Agnorhiza ovata P. C. Everett 1935-6-18 7198 Orange Santa Ana Mts., Main Divide Motorway, Los Pinos Potrero 914 Comment
  RSA0000839  Agoseris cinerea L. R. Abrams 1901-06 1816 Orange Mt. Santiago Trail Comment
  UCR150907  Agoseris retrorsa Valerie Soza, LeRoy Gross 1999-6-10 513 Orange Santa Ana Mountains, Southwestern extension of Modjeska Peak, off dirt road to summit, off Main Divide Road 1524 Comment
  CAS-BOT-BC127479  Agrostis capillaris Ira L. Wiggins 1965-10-24 20291 Orange Roadside at corner of Yorba LInda and State College Boulevards, Fullerton. Comment
  RSA0013960  Agrostis pallens Fred M. Roberts 2008-5-14 6968 Orange Lomas de Santiago: Loma Ridge, upper Bee Flat Cyn. below Loma Ridge Rd., 1.3 km N Bee Peak and 5.4 km NW Bolero Lookout, Irvine Ranch Conservancy. 377 Comment
  UCR193834  Agrostis pallens A. C. Sanders, Fred M. Roberts 2008-7-16 35851 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Limestone Canyon 325 Comment
  JEPS73752  Agrostis viridis Lawrence M. Booth 1932-6-7 1163 Orange Newport Bay Comment
  UCR193037  Agrostis viridis A. C. Sanders, Fred M. Roberts 2008-6-17 35494 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
  UCR56092  Agrostis viridis Jeri Hirshberg 1988-6-7 s.n. Orange Santa Ana Mtns., Santa Ana Mtns. 274 Comment
  RSA366464  Allium haematochiton M. B. Dunkle 1933-3-5 3085 Orange San Juan Canyon. Comment
  UCR150911  Allium monticola Valerie Soza, LeRoy Gross 1999-6-10 509 Orange Santa Ana Mountains, Southwestern extension of Modjeska Peak, off dirt road to summit, off Main Divide Road 1524 Comment
  CAS-BOT-BC472785  Allium neapolitanum John Thomas Howell 1956-3-11 30921 Orange Chapman Ave, Fullerton Comment
  RSA16496  Allophyllum glutinosum Percy C. Everett 1935-6-18 7211 Orange Santa Ana Mts., summit of Santiago Pk. 1732 Comment
  UC1178464  Allophyllum glutinosum Peter Kamb 1948-6-19 1084 Orange Holy Jim Canyon Santa Ana Mts., Holy Jim Canyon 609 Comment
  UCR175517  Allophyllum glutinosum Mark A. Elvin, A. C. Sanders 2005-9-2 4494 Orange Peninsular Ranges, Santa Ana Mtns: Mouth of Lion Canyon, just upstream from Lower San Juan Campground 457 Comment
  UC484252  Alnus rhombifolia C. B. Wolf 1931-3-6 1855 Orange Trabuco Camp Grounds Santa Ana Mts., Trabuco Canyon (w slope of mts.) Comment
  UCR243182  Alnus rhombifolia Chris E. True 2013-4-22 s.n. Orange Aliso Canyon, Aliso and Wood Canyons Park, south of Aliso Viejo 25 Comment
  IRVC26717  Aloe striata Mark A. Elvin, J. Liou, J. Carpenter, J. Nguyen 2004-3-8 3183 Orange UCI Arboretum Southern Coastal 15 Comment
  RSA799618  Alopecurus saccatus Justin M. Wood 2011-4-12 3651 Orange South Coast: City of Costa Mesa. Fairview Park, just WNW of Marison Special Education Center. 24 Comment
  UCR142295  Alopecurus saccatus D. E. Bramlet 1998-5-17 2618 Orange Fairview Park, City of Costa Mesa; c. 366m N of the intersection of Wilson and Canyon Dr. and 152 m west of the Canyon School, on a mesa overlooking the Santa Ana River 24 Comment
  RSA798189  Amaranthus albus R. F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49593 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74) 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
  CHSC35337  Amaranthus blitoides James Henrickson 1972-10-21 8069 Orange Newport Beach, So. Of Jamboree Rd., E. of Irvine Coast Country Club near U. C. Irvine. Comment
  RSA696429  Amaranthus blitoides Keith E. Hoffmaster 1933-10-1 334 Orange Near Tustin Comment
  RSA751256  Amaranthus blitoides A. C. Sanders, Fred M. Roberts 2008-7-16 35880 Orange Lomas de Santiago, Santiago Creek wash at and above the confluence of Hangmans Tree Canyon 358 Comment
  RSA573430  Amaranthus blitoides Steve Boyd, Timothy S. Ross 1994-9-14 8345 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area of the Cleveland National Forest, Lucas Canyon trail at stream crossing in Aliso Canyon. 341 Comment
  UCR132517  Amaranthus deflexus A. C. Sanders 1999-10-31 23225 Orange South Coast, Mission San Juan Capistrano, near intersection of Ortega Highway (Hwy 74) and El Camino Real 61 Comment
  RSA21100  Amaranthus deflexus E. R. Johnson 1937-11-5 9377 Orange Placentia. Bradford Bros. Packing House. 76 Comment
  POM201875  Amaranthus powellii L. M. Booth 1932-7-21 s.n. Orange Anaheim Creek Comment
  UCR23422  Amaranthus powellii John C. Roos 1937-8-31 2558 Orange San Juan Capistrano [beach] Comment
  JEPS17300  Amblyopappus pusillus L. M. Booth 1932-5-12 1007 Orange Newport Bay Comment
Read comments
Jul 18 2007
  POM147625  Amblyopappus pusillus F. M. Reed 1926-5-19 5360 Orange Roadside near Dana Point. Comment
  RSA614339  Amblyopappus pusillus B. Pitzer 1996-4-30 2795 Orange Crystal Cove State Park, S of City of Irvine on State Hwy 1 (Pacific Coast Hwy). Bluffs above the beach. Comment
  UC536894  Amblyopappus pusillus Lawrence M. Booth 1932-5-12 1007 Orange Newport Bay Comment
  UCSB8603  Amblyopappus pusillus Anderson, J. 1966-4-16 Orange Corona Del Mar: Buck Gully "Little Corona Beach" 15 Comment
  IRVC9303  Amblyopappus pusillus B. T. Gittins 1966-4-20 85 Orange Corona del Mar, between Los Cerritos Riding Stable and Cameo Shores; coastal bluffs. Newport Beach Comment
  RSA736129  Ambrosia acanthicarpa T. B. Salvato, Katie Kurtz 2006-10-15 1916 Orange South Coast: Irvine, San Diego Creek flood control channel, near Michelson Drive and Harvard Avenue. Coordinates +/-1000m 6 Comment
  UCSB48044  Ambrosia acanthicarpa Roberts, Fred 1981-9-26 Orange Anaheim Bay; Calif. Rte. 1 at southern margin of Naval Weapons Station, 1.7 km. SE McGaugh School; 1.1 km. W Hog Island 1 Comment
  RSA640713  Ambrosia chamissonis L. C. Wheeler 1931-8-12 s.n. Orange Balboa. Comment
  UCR209660  Ambrosia chamissonis Fred M. Roberts 2008-5-16 6976 Orange South Coast, Dana Point Headlands, Center for Natural Lands Mgmt. Preserve, along north slopes above Dana Strand Beach, 0.8 km west-northwest of the Marine Institute, Dana Point Harbor 45 Comment
  CDA21595  Ambrosia chamissonis B. S. Herhus, Mark A. Elvin 2006-11-4 13 Orange Southern Coastal; Huntington Beach, Bolsa Chica Wetlands, southwest portion of Reserve beside Pacific Coast Highway. Comment
  POM289599  Ambrosia chamissonis Arthur L. Cohen 513 Orange Ocean parts. Sand lots near beach. 0 Comment
  POM318608  Ambrosia chamissonis var. chamissonis Patricia Wilder 1972-6-27 5390 Orange Along strand of Capistrano Beach 3 Comment
  JEPS41035  Ambrosia psilostachya J. Thomas Howell 1927-9-24 3121 Orange at, Santa Ana River bottom Rancho Santa Ana; Santa Ana River 152 Comment
  RSA725462  Ambrosia psilostachya Fred M. Roberts 2007-8-6 6555 Orange San Joaquin Hills: Laguna Beach, Laguna Cyn. on east side of Laguna Cyn. Rd. adj. to dog park, 1.2 km S (air) from El Toro Road and 1.8 km WSW Moulton Survey Mk. 52 Comment
  RSA769  Ambrosia psilostachya J. T. Howell 1927-10-29 773 Orange Bryant Ranch near Long Beach. 15 Comment
  UC537039  Ambrosia psilostachya Lawrence M. Booth 1932-7-19 1277 Orange Bolsas Marsh Comment
  UCR197655  Ammannia coccinea A. C. Sanders, Fred M. Roberts 2008-9-18 36095 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Santiago Creek Canyon c. 0.5-0.8 miles above the highway bridge 300 Comment
  UC454543  Ammannia robusta I. J. Condit 1908-7-21 Orange Los Alamitos Comment
  POM201704  Ammi visnaga L. M. Booth 1932-7-18 1268 Orange Santa Ana River, 1 mile from Ocean. Comment
  SBBG14802  Amorpha californica P. H. Raven 1962-5-18 17752 Orange Silverado Cyn Truck Trail 7.3 mi above Gate 1280 Comment
  UC1137519  Amorpha californica var. californica R. St. John 1931-4-14 204 Orange Hot Springs Elsinore Quadrangle, San Juan Canyon 304 Comment
  CAS-BOT-BC177252  Amorpha fruticosa Crawford; Johnston 1917-6-9 1225 Orange Santa Ana River near Corona Comment
  RSA3304  Amorpha fruticosa B. D. Stark 1931-10-17 1332 Orange Rancho Santa Ana, Santa Ana Canyon. 137 Comment
  UC527692  Amorpha fruticosa B. D. Stark 1931-10-17 2463 Orange Santa Ana Canyon Rancho Santa Ana 137 Comment
  IRVC29087  Amsinckia intermedia Fred M. Roberts 1989-3-17 4202 Orange Aliso Canyon, 3.3km SSE Moulton Pk. Aliso-Wood Canyon Regional Park 30 Comment
  UC1178237  Amsinckia intermedia Francia Chisaki 1957-4-3 927 Orange 6 mi s Irvine (just s of El Toro near top of hill on Hwy 101) Comment
  UC1178238  Amsinckia intermedia Francia Chisaki 1957-4-3 928 Orange 6 mi s Irvine (just s of El Toro near top of hill on Hwy 101) Comment
  UCD119275  Amsinckia intermedia Francia Chisaki 1957-4-3 925 a Orange On Highway 101, ca. 3 miles S of Irvine. Comment
  HSC17835  Anagallis arvensis J. W. Johnson 1961-3-29 Orange Newport Beach, on S side of upper Newport Bay Comment
  SD181373  Anagallis arvensis Valeria Soza, K. Clark,L. Gross,W. Miller,F. Roberts,G. Wallace 2001-4-4 1123 Orange Anaheim Bay; Seal Beach U.S. Naval Weapons Station, southwestern edge of Seal Beach National Wildlife Refuge 3 Comment
  UCR99874  Anagallis arvensis Scott D. White 1996-12-20 4636 Orange Santa Ana Mountains, above Modjeska Canyon; proposed water tank site 488 Comment
  RSA678734  Anagallis arvensis Fred M. Roberts, Carol A. Roberts, Robert Allen 2003-5-11 5861 Orange Dana Point Headlands: hilltop, 0.6km SSW Richard Henry Dana School south of Pacific Coast Highway and north of Scenic Drive. 73 Comment
  RSA552945  Anemopsis californica Fred M. Roberts, R. E. Riefner 1989-5-2 4325 Orange Aliso-Wood Canyons Regional Park: Lower Woods Canyon, 3.5 km SSE Multon Peak. 30 Comment
  UCR192216  Anthriscus caucalis A. C. Sanders, Fred M. Roberts 2008-5-6 35255 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, slope SE of road junction along ridge road, near head of Agua Chinon Canyon, 2.4 miles north of El Toro 470 Comment
  UCR193365  Antirrhinum coulterianum A. C. Sanders, Mitch Provance 2008-5-20 35426 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago area, Santiago Creek Canyon, c. 3/4 mile below Modjeska Canyon confluence 355 Comment
  JEPS83328  Antirrhinum kelloggii David M. Thompson 1983-5-11 301 Orange On private road up Williams Canyon, about 0.3 miles up from Santiago Canyon Road. El Toro Quad. (7.5', 1968) 365 Comment
  POM7664  Antirrhinum kelloggii Philip A. Munz, R. D. Harwood 1920-4-24 3785 Orange Sierra [Freemont] Canyon 366 Comment
Read comments
Sep 17 2011
  UCR203905  Antirrhinum multiflorum R. E. Riefner Jr. 2008-6-3 08- 139 Orange Santa Ana Mountains, Irvine Ranch Reserve, Fremont Canyon Conservation Easement, east fork at upper Fremont Canyon, along Black Star SCE Road 618 Comment
  RSA701675  Antirrhinum nuttallianum L. C. Hull 1939-9-8 s.n. Orange Laguna Hills Comment
  POM354914  Antirrhinum nuttallianum subsp. nuttallianum M. B. Dunkle 1934-6-18 3994 Orange San Juan Canyon; Southern Coastal 305 Comment
  RSA699  Antirrhinum nuttallianum subsp. nuttallianum J. T. Howell 1927-6-26 214 Orange Claymine Canyon near Sierra Peak. 244 Comment
  UCR177863  Aphanisma blitoides Eliza L. Maher 2006-5-2 s.n. Orange South Coast, Dana Point Headlands, CNLM preserve 46 Comment
  POM201615  Apiastrum angustifolium L. M. Booth 1932-5-12 1027 Orange Newport Bay. Comment
  UC1375399  Apium graveolens C. Davidson and G. Benny 1971-6-15 1545 Orange 1/2 mi n of Central Avenue (along Brea Creek near Brea Oil Co wells, Brea Canyon); Brea Canyon, Brea Creek Comment
  UCR138386  Apium graveolens Scott D. White, Brian Leatherman 1997-6-12 5314 Orange Santa Ana Mtn. foothills, E of San Juan Capistrano: San Juan Creek between Hwy 74 bridge and Mission Vieja site, i.e. c. 2-4 mi east of Hwy I-15/Hwy 74 junction 76 Comment
  RSA308986  Aralia californica James R. Shevock 1976-10-28 5358 Orange Along Silverado Canyon road in the vicinity of Bigcone Spring, Santa Ana Mts, Cleveland National Forest. 915 Comment
  MACF024370  Araucaria Roberta Tiedeman 1977-4-27 Orange By geodesic dome Comment
  RSA0089133  Araujia sericifera Eric Focht 2016-7-8 001 Orange South Coast: University of California Research and Extension Center, 7601 Irvine Blvd., Irvine. 13 Comment
  RSA626922  Arctostaphylos glandulosa Jon E. Keeley 1992-6-12 15507 Orange Hotshot Camp, north of Ortega Highway (Highway 74). 900 Comment
  UCR273488  Arctostaphylos glandulosa A. C. Sanders, Glen Morrison 2016-8-4 42608 Orange Peninsular Range; Santa Ana Mountains, dirt road off North Main Divide Road (Forest Rte 3S04), north of Los Pinos Spring, 3.87 km NW (286 deg. ) of El Cariso Fire Station 1101 Comment
  UCR282324  Arctostaphylos glandulosa A. C. Sanders, Yi Huang 2017-3-3 42703 Orange Peninsular Range; Santa Ana Mtns., North Main Divide Road, 6.5 km north of Hwy 74, at junction to Blue Jay and Falcon Camps 1038 Comment
  CAS-BOT-BC23105  Arctostaphylos glandulosa subsp. glandulosa A. M. White 1974-6-1 1358 Orange Ca. 20 mi. E. of Santa Ana, N. of Silverado Chanyon 1005 Comment
  CAS-BOT-BC23110  Arctostaphylos glandulosa subsp. glandulosa P. C. Everett 1935-6-19 7232 Orange Santa Ana Mrs., Main divide Motorway, 7 mi. from summit of Santiago Peak. 1280 Comment
  CAS-BOT-BC402202  Arctostaphylos glandulosa subsp. glandulosa R. F. Thorne; C. W. Tilforth; E. W. Lathrop 1977-4-27 49708 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  RSA629316  Arctostaphylos glandulosa subsp. glandulosa Jon E. Keeley 1992-6-12 15518 Orange North of El Cariso on road to Los Pinos Pk, 3.8 km north of Hwy 74. 1000 Comment
  RSA629326  Arctostaphylos glandulosa subsp. glandulosa Jon E. Keeley 1992-6-12 15510 Orange Rd. 6S06, 1km northeast of Blue Jay Campground, north of El Cariso (Hwy 74) 1050 Comment
  RSA629339  Arctostaphylos glandulosa subsp. glandulosa C. J. Fotheringham, Jon E. Keeley 1996-6-24 27642 Orange Ca. 3 km west of Sierra Peak. 700 Comment
  RSA0051413  Arctostaphylos glandulosa subsp. glandulosa R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49683 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. 457 Comment
  SEINET10684212  Arctostaphylos glandulosa var. glandulosa Karen M. Meyer, Andrew Townesmith; Tracy Scott 2007-3-10 Meyer 2 Orange Cleveland National Forest, 0.5 mi. N. Main Divide Rd./NF3S04, off Hwy. 74. Elsinore Mountains, ridge top. 917 Comment
  UCD170239  Arctostaphylos otayensis K. M. Meyer; A. Townesmith and T. Scott 2007-3-10 6 Orange Cleveland National Forest, 2 mi. N of Main Divide Rd./NF3S04, off Hwy. 74. 957 Comment
  RSA234498  Arctotis venusta James Henrickson 1970-7-25 5091 Orange 2 miles NE of Huntington Beach near north end of Bolsa Chica Salt Marsh. 0 Comment
  SEINET4085709  Argemone munita var. robusta G. B. Ownbey, F. Ownbey 1954-1 2177 Orange Between Modjesca Peak and Santiago Peak. 1524 Comment
  RSA752035  Argyranthemum foeniculaceum Fred M. Roberts 2008-3-27 6814 Orange Dana Point: Dana Point Headlands, CNLM Preserve near Outlook 1, 0.5km W Marine Institute (Dana Point Harbor). 45 Comment
  JEPS30362  Arnica discoidea Peter H. Raven 1962-5-18 17751 Orange 4.8 miles above gate on Silverado Canyon Truck Trail Santa Ana Mountains 1066 Comment
  RSA5961  Artemisia biennis C. B. Wolf 1932-9-13 4037 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
  RSA417250  Artemisia californica Marcus E. Jones 1930-3-3 26497 Orange Santa Ana Mountains. 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
  UCR222875  Artemisia californica T. B. Salvato 2010-10-27 5137 Orange South Coast, Dana Point Headlands, Hilltop Park, north of Scenic Dr. and west of Green Lantern St., overlooking Dana Point Harbor 84 Comment
  UCSB16965  Artemisia californica Gerhart, Janet 1963-2-22 Orange 1.5 miles above locked gate on dirt road, Trabuco Canyon, 17.4 miles east of U.S. Highway 101 at El Toro Marine Base, 2.5 miles by air southeast of Santiago Peak 457 Comment
  UCSB52400  Artemisia californica Roberts, Fred 1982-9-15 Orange Santa Ana Mtns.; San Juan Trail, 1.1 km. SE Blue Jay Campground; 2.5 km. SSE Los Pinos Peak 997 Comment
Read comments
Jan 25 2020
  UCR193794  Artemisia douglasiana A. C. Sanders, Fred M. Roberts 2008-7-3 35689 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
  RSA784185  Artemisia dracunculus J. D. Olmsted 1959-8-26 837 Orange Along road south of mouth of Black Star Canyon north of Rock Crushing plant 305 Comment
  RSA478870  Arthrocnemum subterminale F. R. Fosberg 1930-7-10 S 3187 Orange Anaheim Landing. [Los Angeles Co. on label] Comment
  IRVC25009  Asclepias fascicularis Fred M. Roberts 1986-6-27 3034 Orange Mission Viejo: Creek channel along Cabot Rd. near Oso Pkwy. Comment
  UCR233746  Asclepias fascicularis Fred M. Roberts 2008-6-12 7041 Orange Santa Ana Mtns. Foothills, Lomas de Santiago; Loma Ridge, Shoestring Canyon, Shoestring Road near jct. with Santiago Cyn. Rd. 251 Comment
  UCR103705  Asparagus asparagoides B. G. Pitzer, T. Tennant 1997-11-8 3372 .1 Orange San Joaquin Hills, Crystal Cove State Park, along Moro Canyon Trail, from beginning to a point c. 1.75 mi. up the canyon. 85 Comment
  IRVC19485  Aspidotis californica Karlin G. Marsh, G. A. Marsh 1982-10-23 Orange Canyon Acres Canyon; shaded, rocky slopes at base of cliffs north of creek. Laguna Beach Comment
  RSA5  Aspidotis californica J. T. Howell 1927-7-3 257 Orange Claymine Canyon near Sierra Peak. 305 Comment
  POM9822  Aspidotis californica P. A. Munz, R. D. Harwood 1920-4-24 3743 Orange Santa Ana Mountains, Sierra [Freemont] Canyon 366 Comment
  RSA0022438  Aspidotis californica R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49797 Orange Santa Ana Mountains: Trabuco Canyon Comment
  UCR100183  Aster subulatus Scott D. White 1993-3-5 1108 Orange Tustin. Marine Air Corps Air Station: SE of Red Hill Ave and NE of Barranca 15 Comment
  RSA244241  Astragalus brauntonii C. B. Wolf 1936-6-22 8000 Orange Sierra Peak, Claymine Canyon truck trail to Sierra Peak 457 Comment
  RSA6139  Astragalus brauntonii B. D. Stark 1933-06 4997 Orange Santa Ana Mountains, north slopes of Sierra Peak. [county unspecified] Comment
Read comments
Aug 9 2007
  RSA0127344  Astragalus didymocarpus var. didymocarpus Fred M. Roberts 2016-4-29 8047 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
  UCR192500  Astragalus gambelianus A. C. Sanders, Fred M. Roberts 2008-3-25 34547 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  UCR222417  Astragalus gambelianus D. E. Bramlet 2008-3-31 4135 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, 282 m east of upper Hicks Haul Rd., tributary of Limestone Canyon, 1 km south of Santiago Canyon Rd. 317 Comment
  UCR234139  Astragalus trichopodus Dick Newell, Don Millar, Judy Booth 2012-4-25 246 Orange South Coastal Plain, Muth Interpretive Center, upper Newport Bay, Newport Beach 9 Comment
  UCD105449  Astragalus trichopodus G. H. Vansell 1935-6-12 s.n. Orange Yerba Linda area. Comment
  RSA278304  Astragalus trichopodus var. lonchus C. W. Tilforth 1979-5-23 1808 Orange Mouth of Aliso Canyon, south Laguna. Comment
  CAS-BOT-BC200841  Astragalus trichopodus var. trichopodus John Thomas Howell 1927-6-2 2415 Orange Southern Puente Hills in the Santa Ana Canon [Canyon] 152 Comment
  SD234358  Atriplex T. B. Salvato Salvato, Katie Kurtz, Mitch Provance. 2006-3-19 1906 Orange South Coast: Irvine, San Diego Creek flood control channel, between Campus Drive and Michelson Drive (Tustin 7.5' Q) 6 Comment
  UC1980256  Atriplex R. E. Riefner Jr. 2007-10-26 07 -453 Orange City of Laguna Niguel, Laguna Niguel Regional Park, Sulphur Creek Reservoir, near La Paz Rd. and Kings Rd. Comment
  RSA752215  Atriplex amnicola R. E. Riefner Jr. 2002-5-4 02 -91 Orange Upper Newport Bay, Jamboree Rd. and Bayview Dr. 15 Comment
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Feb 28 2016
  SBBG132290  Atriplex amnicola R. E. Riefner Jr. 2005-9-16 05 -666 Orange upper Newport Bay, E of Bayside Dr at confluence with Big Cyn 6 Comment
  UCD169475  Atriplex amnicola R. E. Riefner Jr. 2006-2-12 6- 21 Orange South Coast, N end of City of San Clemente, along N-bound I-5, immediately S of Camino de Estrella exit ramp. 66 Comment
  RSA737856  Atriplex amnicola R. E. Riefner 2005-9-9 5 -659 Orange City of Dana Point, beach south of Salt Creek, past Ritz Carlton Hotel on Pacific Coast Hwy. 2 Comment
  RSA452403  Atriplex californica Albert J. Perkins 1923-05 s.n. Orange Laguna heights Comment
  UCR14056  Atriplex californica Hyrum B. Johnson 1973-10-27 s.n. Orange Pacific Coast, Bolsa Chica State Beach 1 Comment
  POM47598  Atriplex californica I. M. Johnston 1924-8-29 s.n. Orange Corona Del Mar Comment
  POM278963  Atriplex canescens Lyman Benson 1945-6-15 11797 Orange Laguna Beach. 8 Comment
  RSA234538  Atriplex canescens James Henrickson 1970-7-24 5018 Orange 3 miles NW of Huntington Beach on sandy ''Rabbit'' Island in Bolsa Chica Salt March near Inner Bolsa Bay. 1 Comment
  SD40182  Atriplex canescens Edith A. Purer 1932-8-31 4869 Orange Near Route 101. Comment
  UCD97302  Atriplex canescens A. C. Sanders 1990-10-6 10193 Orange Newport Bay, North Star County Beach area on the SW end of the bay, 2 km inland of Hwy. 1. 1 Comment
  CAS-BOT-BC170193  Atriplex canescens subsp. canescens Joseph Andorfer Ewan 1932-7-28 7707 Orange Seaward bluffs at Corona del Mar. Comment
  SD144473  Atriplex canescens var. canescens B. Pitzer 1996-4-30 2789 Orange Crystal Cove State Park, S of City of Irvine on Hwy 1 (Pacific Coast Hwy). Comment
  RSA601790  Atriplex glauca D. Bramlet 1997-3-16 2504 Orange Slope above marsh adjacent to Upper Newport Bay and beside (south of) the existing bike trail, near the bridge over the Delhi channel. The site is approximately 32 m southeast of the end of University Dr. and 7 m west of the Delhi channel. 2 Comment
  RSA737241  Atriplex glauca R. E. Riefner 2006-3-19 06 /01/1952 Orange City of Newport Beach, near Avocado Ave, and San Nicolas Dr. W of McAthur Blvd. 77 Comment
  RSA5271  Atriplex lentiformis subsp. breweri B. D. Stark 1932-12-9 1676 Orange Capistrano Beach at Doheny Palisades. Comment
  RSA65427  Atriplex leucophylla F. W. Peirson 1923-3-25 s.n. Orange Aliso Creek, near Laguna Beach. Comment
  RSA0126885  Atriplex lindleyi Richard E. Riefner Jr. 2017-4-10 17 -162 Orange City of San Clemente, San Clemente State Beach, SW bluff area, W of Concordia Elementary School. 29 Comment
  RSA593870  Atriplex lindleyi R. E. Riefner 1994-6-18 94 -427 Orange San Clemente State Beach Comment
  RSA249  Atriplex patula J. T. Howell 1927-10-29 s.n. Orange Bryant Ranch, near Long Beach. 15 Comment
  RSA539447  Atriplex polycarpa Karlin G. Marsh 1991-10-29 s.n. Orange Anaheim: Santa Ana Canyon, south side of Santa Ana River just east of Imerial Highway, 4.1km NW Robbers Peak. 87 Comment
  UCR151119  Atriplex polycarpa Scott D. White 1998-10-15 7185 Orange Santa Ana Mtns foothills, Yorba Linda, c. 0.5 mi south of Telegraph Canyon between Ohio St. and Fairmont 305 Comment
  POM47596  Atriplex rosea I. M. Johnston 1924-8-29 s.n. Orange 4 miles S of Santa Ana Comment
  UCSB52445  Atriplex rosea Ferren, Wayne; Roberts, Jr., Fred 1982-7-21 Orange Newport Beach; Upper Newport Back Bay, Back Bay Dr., parking lot at mouth of Big Canyon; 2.6 km. ENE Newport Harbor High School Comment
  JEPS59665  Atriplex semibaccata L. M. Booth 1932-5-12 1002 Orange Newport Bay Comment
  UCR130494  Atriplex semibaccata R. E. Riefner Jr. 2002-5-4 02- 90 Orange South Coast, Upper Newport Bay, Jamboree Road at Bayview Dr., edge of Newport Beach Q. 21 Comment
  RSA18529  Atriplex semibaccata C. B. Wolf 1927-7-23 668 Orange Along the coast just north of San Clemente. Comment
  RSA254  Atriplex serenana J. T. Howell 1927-6-30 235 Orange Bryant Ranch near Long Beach. 15 Comment
  RSA593863  Atriplex serenana R. E. Riefner 1995-4-17 95 -73 Orange San Clemente State Beach, in south bluff area. Comment
  RSA5955  Atriplex serenana C. B. Wolf 1932-7-7 3846 Orange Bixby Ave., 0.7 mile W of Hansen road (0.2 mile W of SE corner of NE/4 of NW/4). 8 Comment
  SD178169  Atriplex suberecta Tom Perring, Tracy Pinckard 1994-3-2 Orange South Coast: Tustin, Marine Helicopter Station at the corner of Moffett Drive and Jamboree Rd. Growing along a ditch in an agricultural area. 10 Comment
  UCD97688  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 Road. 11 Comment
  UCR116014  Atriplex triangularis George K. Helmkamp, E. A. Helmkamp 2000-10-18 6231 Orange Newport Bay, South side of the back bay. 6 Comment
  POM265719  Atriplex watsonii J. C. Roos 1937-9-1 2157 Orange Seal Beach. Comment
  POM201894  Atriplex watsonii L. M. Booth 1932-7-21 1299 Orange Anaheim Creek Comment
  POM48692  Atriplex watsonii I. M. Johnston 1924-8-29 s.n. Orange Balboa Island, salt marsh near bridge to mainland. Comment
  RSA699980  Avena barbata Jeanne Paxton 1934-5-1 s.n. Orange Orange County Dam Comment
  CAS-BOT-BC146155  Avena fatua Ira L. Wiggins 1966-3-22 20555 Orange Floor of Silverado Canyon about 0.5 mile below entrance to Cleveland National Forest. Comment
  POM17840  Baccharis douglasii Philip A. Munz 1923-9-6 7733 Orange Holy Jim Canyon, Santa Ana Mts 762 Comment
  RSA655626  Baccharis douglasii A. C. Sanders 2000-4-19 23336 Orange Bolsa Chica Lagoon, along dirt roads in oil field, east of Hwy 1, east of Bolsa Chica St. 0 Comment
  LA103539  Baccharis emoryi Barry A. Prigge; 1983-12-17 5519 Orange Santa Ana Marsh and adjacent lowlands, southeasternmost part of oil field just N of Pacific Coast Highway between remnant Santa Ana River channel and dirt road 1 Comment
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Jun 12 2013
  RSA657740  Baccharis glutinosa Ken Greby 1985-4-18 20 Orange Alongside Laguna Canyon Rd. approx. 1.5 km. NE from El Toro Rd. 46 Comment
  UCR112095  Baccharis glutinosa A. C. Sanders, D. Malueg, K. D. Jones 2000-4-19 23336 Orange Pacific Coast, Bolsa Chica Lagoon, along dirt roads in oil field, east of Hwy 1, east of Bolsa Chica St. 11 Comment
  RSA719421  Baccharis pilularis Fred M. Roberts, Lee Ann Caranza 2006-10-25 6456 Orange Dana Point Headlands south of Margarite Drive, 0.6km W Marine Institute and 1km SW Cook Sch. 58 Comment
  SD9148  Baccharis pilularis subsp. consanguinea unknown Dec 1878 Orange Santa Ana Valley Comment
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Oct 29 2013
  CAS-BOT-BC106730  Baccharis salicifolia C. L. Hitchcock; C. V. Muhlick 22118 Orange 1 mi. n. of Brea, at mouth of Brea Canyon, along intermittent stream. Comment
  HSC5108  Baccharis salicifolia T. L. Ackerman 1964-3-28 15 Orange On Irvine Park Dr. inside Irvine Park Comment
  RSA789  Baccharis salicifolia J. T. Howell 1927-10-23 769 Orange Santa Ana River bottom, Rancho Santa Ana 152 Comment
  SBBG40584  Baccharis salicifolia C. Ingram 1960-3-29 256 Orange ca. 3 mi above O'Neill Park, Trabuco Cyn Comment
  SD175792  Baccharis salicifolia D. G. Kelch 2006-12-9 06 557 Orange Irvine, University Dr. along tidal creek just east of I-73. 9 Comment
  JEPS40678  Baccharis salicifolia subsp. salicifolia Alice King 1908-4-1 Orange Santiago Creek Comment
  UC1228549  Baccharis salicifolia subsp. salicifolia C. L. Hitchcock and C. V. Muhlick 22118 Orange 1 mi n Brea; mouth of Brea Canyon Comment
  UCSB36207  Baccharis salicina Ferren, Wayne; Roberts, Fred 1980-8-27 Orange Newport Back Bay trending NW from Bayside Drive, ca. 3.5 km. NE of Rt. 1, Newport Beach Comment
  IRVC22976  Baccharis sarothroides Karlin G. Marsh 1986-12-15 Orange Santa Ana Canyon, Santa Ana River, south side, Horseshoe Bend, Yorba Linda 105 Comment
  RSA362299  Baccharis sarothroides Karlin G. Marsh 1986-12-15 s.n. Orange Yorba Linda: Santa Ana Canyon, Santa Ana River 105 Comment
  CAS-BOT-BC443960  Bacopa monnieri R. E. Riefner, Jr. 2012-7-1 12 -295 Orange City of Mission Viejo, Oso Creek, ca. 1.3 mi N of Paseo De Colinas Ave. on Camino Capistrano Ave. 87 Comment
  SD247503  Bacopa monnieri R. E. Riefner Jr. 2012-7-1 12 295 Orange City of Mission Viejo, Oso Creek, ca 1.3 mi N of Paseo De Colinas Ave on Camino Capistrano Ave. 88 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
  RSA730993  Barbarea orthoceras Fred M. Roberts 2006-11-15 6467 Orange Santa Ana Cyn., Santa Ana RIver, north bank, 1.1 km ENE Imperial Hwy crossing. At river s edge at base of cement bank on sandy soil in narrow riparian herb community. 85 Comment
  RSA733821  Barbarea vulgaris Keith E. Hoffmaster 1935-5-5 623 -424 Orange San Juan Canyon., Santa Ana Mts. Comment
  CDA7901  Bassia hyssopifolia Adam Ontiveros 2008-7-8 PDR# 1543672 Orange Anaheim, 1750 S. Douglass Rd 0 Comment
  SBBG47295  Bassia hyssopifolia R. N. Philbrick 1973-8-31 Orange marsh just E of University of California, Irvine Comment
  RSA5447  Bassia hyssopifolia C. B. Wolf 1932-9-13 4025 Orange Bryant Ranch: Triangle of waste ground S of Bryant Ave., & 1/2 mi. west of Los Alamitos Blvd., (Triangle waste ground at NW corner of SW 1/4 sect. 30 T4S R11W) 8 Comment
  CAS-BOT-BC75514  Batis maritima L. R. Abrams 1917-6-23 6563 Orange Balboa. Comment
  LA105120  Batis maritima Barry A. Prigge; 1988-6-30 8119 Orange eastern Newport Beach, ca 1100 ft E of Santa Ana River/Greenville-Banning channels along old river channel and SE of oil wells 0 Comment
  POM122280  Batis maritima Marcus E. Jones 1924-8-26 s.n. Orange Balboa Comment
  SD80954  Batis maritima James Henrickson 1970-7-25 5034 b Orange 3.5 miles northwest of Huntington Beach on sandy margin of Bolsa Bay, 0.25 southeast of Warner Avenue along Pacific Coast Highway 0 Comment
  SFV20021  Batis maritima A. Dittmer, S. Dark 2004-10-3 76 Orange Bolsa Chica wetlands. South side of public parking lot off Highway 1. Comment
  UCR26036  Batis maritima Wayne R. Ferren 1980-8-27 2330 B Orange South Coast, along channel in Newport Backbay west side of Backbay Drive, about 1.5 km northeast of Hwy 1, Newport Beach Comment
  RSA790  Bebbia juncea J. T. Howell 1927-6-2 13 Orange Sandstone Ridge, Botany Garden, RSA. 152 Comment
  CAS-BOT-BC106378  Bebbia juncea var. aspera Helen D. Geis 1902-1-1 s.n. Orange Santiago Canyon [Canon] Comment
  CAS-BOT-BC106379  Bebbia juncea var. aspera Scott D. White 1997-5-6 5034 Orange Santiago Canyon: Ca. 1.5 mi N of Modjeska Cyn. USGS El Toro 7 1/2 ' quad, Lomas de Santiago S178 - Santa Ana Mts. 350 Comment
  RSA789603  Berberis dictyota R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49716 Orange Santa Ana Mountains: Bedford Truck Trail, ca. 0.8 km below junction with Main Divide Truck Trail Comment
  SD247611  Berberis dictyota R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49716 Orange Santa Ana Mountains: Bedford Truck Trail, ca. 0.8 km below junction with Main Divide Truck Trail Comment
  SEINET3090330 Image available Beta vulgaris Cesareo Perez 1971-5-15 Orange Huntington State Beach Pacifico Cst. Hwy. Brookhurst Huntington Beach. Comment
  JEPS30712  Bidens laevis Peter H. Raven 1961-10-15 16850 Orange Anaheim Street, Anaheim, Santa Ana River Bed Santa Ana River Bed, Anaheim, Anaheim Street 60 Comment
  RSA151082  Bidens laevis Peter H. Raven 1961-10-15 16850 Orange Anaheim: Santa Ana River Bed at Anaheim Street crossing. 61 Comment
  RSA0031741  Bidens pilosa R. F. Thorne 1977-11-21 50823 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs 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
  UCR61919  Bolboschoenus maritimus subsp. paludosus Richard A. Marin 1971-5-11 71- 80 Orange Irvine, corner of MacArthur Blvd. & University Drive Comment
  UC520300  Bolboschoenus robustus Joseph Andorfer Ewan 1932-7-29 7728 Orange Newport Lagoon Comment
  CAS-BOT-BC145863  Bothriochloa barbinodis John Thomas Howell 1927-6-5 2437 Orange Southern Puente Hills, Santa Ana Canon [Canyon]. 152 Comment
  RSA682595  Bothriochloa barbinodis Scott D. White, Amanda Duchardt 2003-3-27 8859 Orange Canyon bottom and west facing slopes above Canada Gobernadora. 91 Comment
  RSA788247  Bothriochloa barbinodis R. F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49623 Orange Santa Ana Mountains: along Ortega Highway (74), about 1/4 mile above San Juan Fire Station Comment
  SD245200  Bothriochloa barbinodis R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49623 Orange Santa Ana Mountains: along Ortega Highway (74), about 1/4 mile above San Juan Fire Station. Comment
  POM294343  Bowlesia incana Lyman Benson 1947-4-27 12341 Orange Carbon Canyon. Chino-Puente Hills; Pacific Slope Drainage Area. 244 Comment
  UCD127256  Bowlesia incana Ronni Stachelek; Bob Anderson, Frances Schropshire 1995-3-1 39 Orange Newport Beach, Upper Newport Bay on Back Bay Drive ca. 1/2 miles north of Shellmaker Island. Comment
  RSA733843  Brachypodium distachyon A. C. Sanders 2008-4-29 35145 Orange Lomas de Santiago, western end of Loma Ridge on road to sheriff's training facility, c. 1.5 mi. SW of Santiago Reservoir. 335 Comment
  IRVC1027  Brassica geniculata I. L. Wiggins 1965-10-24 20281 Orange [East Coyote Hills] along Skyline Dr. near Raymond St. Fullerton Comment
  UCR186136  Brassica geniculata T. B. Salvato, Katie Kurtz 2006-10-15 1921 Orange South Coast, Irvine, San Diego Creek flood control channel, near Michelson Drive and Harvard Avenue 6 Comment
  UCR48087  Brassica nigra Jack Easton 1987-4-21 s.n. Orange Southern Coast, Kain property, San Clemente, mouth of Trafalgar Canyon, just behind the beach 30 Comment
  UCSB18585  Brassica rapa Reed, Robert 1964-3-26 Orange 150 feet N of corner of Orangewood and Euclid Ave., Anaheim 60 Comment
  CSUSB529  Brassica rapa subsp. sylvestris Shirley Hill 1963-3-23 630323 4 Orange Field in back of Enco Station on Carolina st. Placentia. Abandoned field with other weeds Comment
  RSA650639  Brassica rapa var. rapa Daniel Truong 1991-5-5 8 Orange Irvine Regional Park, left field adjacent to main entrance, within 1/4 mile radius of closed area. Comment
  RSA642460  Brodiaea filifolia Tony Bomkamp 1995-6-5 s.n. Orange Rancho Mission Viejo. Ridgeline and lots 1 mi N of Ortega Hwy and W of Canada Gobernadora. Comment
  RSA679215  Brodiaea terrestris subsp. kernensis Fred M. Roberts 2003-6-17 5912 Orange Just NE of Falcon roup Camp, 2.1km ESWE Los Pinos Peak just west of main road. 1009 Comment
  RSA696331  Bromus Keith E. Hoffmaster 1927-5-2 s.n. Orange Santa Ana Comment
  RSA184177  Bromus carinatus I. L. Wiggins 1966-3-16 20528 Orange Entrance to Firestone Boy Scout Reservation. Comment
  RSA5928  Bromus carinatus C. B. Wolf 1932-7-2 3824 Orange Carbon Canyon, 1/8 mile below La Vida Springs 213 Comment
  SEINET10520186  Bromus carinatus LeRoy R. Abrams 1903-4-18 Abrams 3271 Orange Trabuco arroyo near Capistrano. Comment
  CAS-BOT-BC149276  Bromus carinatus var. carinatus Ira L. Wiggins 1966-3-16 20528 Orange Roadside bank near entrance to Firestone Boy Scout Reservation. Comment
  CAS-BOT-BC148924  Bromus carinatus var. marginatus Le Roy Abrams 1901-6-1 1844 Orange Santiago Peak. Comment
  RSA734688  Bromus catharticus A. C. Sanders, T. B. Salvato 2008-5-13 35355 Orange Lomas de Santiago, Santiago Canyon above (S of) mouth of Hangman Tree Canyon, just below Modjeska Canyon confluence 366 Comment
  SEINET14401104  Bromus catharticus Czarnecki 1966-5-20 108 Orange Near State College Blvd and Yorba Linda Blvd, Fullerton Comment
  RSA708814  Bromus grandis Fred M. Roberts, Robert L. Allen, Chris Barnhill, Nancy Hatfield 2005-5-30 6214 Orange Main Divide Road, ridge between Silverado and Bixby Canyons, coastal slope, 0.46km (air) S Bald Peak. 1203 Comment
  RSA0015960  Bromus hordeaceus Fred M. Roberts 2012-4-24 7533 Orange San Joaquin Hills: Buck Gully, above main trail, 2 km W Signal Peak and about 0.4 km S San Joaquin Hills Road. 155 Comment
  RSA542558  Bromus hordeaceus Fred M. Roberts 1987-4-21 3380 Orange Aliso Viejo: Aliso Creek, Aliso Creek bike trail, 3.0 kilmeters ENE Moulton Peak., UTM 3715500m N, 433650m E 73 Comment
  RSA696328  Bromus hordeaceus Keith E. Hoffmaster 1928-4-25 s.n. Orange Santa Ana Comment
  RSA696604  Bromus laevipes Rankin s.n. Orange Silverado Comment
  CAS-BOT-BC162108  Bromus porteri John Thomas Howell 1927-6-17 2549 Orange Hills on north side of Santa Ana Canon [Canyon]. 152 Comment
  CAS-BOT-BC161821  Bromus rubens Ira L. Wiggins 1966-3-16 20526 Orange Near entrance to Firestone Boy Scouts Reservation. Comment
  POM363952  Bromus rubens Alice Jane Merritt 1893-05 s.n. Orange Santa Anna [Santa Ana] Comment
  RSA542557  Bromus rubens Fred M. Roberts 1989-3-17 4206 Orange Aliso-Wood Canyon Regional Park: Aliso Canyon, 3.4 kilometers SSE Moulton Peak., UTM 3711900m N, 432900m E 55 Comment
  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
  UCD59710  Bromus sterilis Scott D. White; Noel Davis 1998-5-21 6548 Orange Santa Ana Mtn. foothills. Mission Viejo Area: Aliso Creek watershed, east of El Toro Rd., just N of jtn. w/ Valley Vista Wy. Large proposed subdivision called 'Saddleback Meadow. 304 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
  RSA741472  Buddleja davidii R. E. Riefner Jr. 2008-5-22 8 -116 Orange Near City of Orange, Santiago Creek, vicinity of Jackson Ranch Rd. at Santiago Creek Rd., Irvine Ranch Reserve, Management Area 15. Comment
  CAS-BOT-BC36892  Cakile edentula var. edentula A. Davidson M. D. 1907-9-1 1770 Orange Newport. Comment
  CSUSB525  Cakile maritima C. M. Flanagan 1971-5-18 S. N. Orange Cresent Bay, Laguna Beach Comment
  RSA649676  Calamagrostis koelerioides R. E. Riefner 2000-6-26 20 -579 Orange NCCP North Ranch Policy Plan Area. Along dirt road running N and W of Black Star Canyon Road at powerline tower. 631 Comment
  RSA737234  Calandrinia breweri R. E. Riefner 2008-3-12 08 -34 Orange Irvine Ranch Reserve, North Irvine Ranch, East Fork of upper Fremont Canyon along Black Star SCE Rd. 716 Comment
  UC1929694  Calandrinia breweri R. E. Riefner Jr. 2008-5-20 08 -104 Orange Irvine Ranch Reserve, North Irvine Ranch, western Fremont Canyon, Windy Ridge Rd. Comment
  UCR223960  Calandrinia ciliata Fred M. Roberts 2008-4-9 6860 Orange South Coast, Dana Point, Dana Point Headlands, CNLM Preserve, near Outlook 2, 0.7 km west of Marine Institute, Dana Point Harbor 52 Comment
  SEINET6903103  Calandrinia ciliata Wanda P. Vestal, A. G. Vestal 1955-3-24 s.n. Orange Trabuco Canyon, about 5 miles east of El Toro. Comment
  RSA723962  Callistemon viminalis R. E. Riefner Jr. 2006-11-12 06 -559 Orange City of Newport Beach, Irvine Coast Trail at San Diego Creek, near SR-73 crossing, S of Jamboree Rd. 3 Comment
  CAS-BOT-BC140073  Calochortus E. W. Lathrop 1966-3-23 6098 Orange 4 miles NE of Lake Irvine, Black Star Canyon, Cleveland Nat'l. Forest, Trabuco District Comment
  HSC15349  Calochortus catalinae S. M. Clapp 1966-4-3 1 Orange 1.0 mi. N of Orange County-Olinda Dump 61 Comment
  RSA0065925  Calochortus catalinae Allison D. Rudalevige 2015-3-25 ADR 11 Orange City of Laguna Beach, between Hobo Canyon and Aliso Creek. 199 Comment
  RSA0125887  Calochortus catalinae Fred M. Roberts 2008-5-14 6970 Orange Lomas de Santiago: Loma Ridge, Bee Peak, 0.1 km W summit. 515 Comment
  RSA649054  Calochortus catalinae D. E. Bramlet 2000-4-12 2977 Orange Fremont Canyon near Edison transmission lines. The site is 92m east of the Edison Spur Road and 762m southeast of the Fremont ridge road. The locality is 335m west of Fremont Canyon. 138 Comment
  RSA749519  Calochortus catalinae Fred M. Roberts 2009-4-11 6886 Orange Lomas de Santiago: Loma Ridge, upper Dripping Springs Cyn., 0.9 km NE Bee Peak and 1.2 km WNW Dripping Springs. 448 Comment
  RSA749646  Calochortus catalinae D. E. Bramlet 2008-6-3 4289 Orange Unspecified. 483 Comment
  RSA788917  Calochortus catalinae Fred M. Roberts 1999-6-10 5239 Orange Lomas de Santiago: Loma Ridge, Agua Chinon Cyn., 1.3 km S Bolero Spring and 2.2 km W Bolero Lookout. 285 Comment
  UCR144103  Calochortus catalinae Scott D. White 2003-3-21 8795 Orange Peninsular Range/Santa Ana Mtns, Foothills [above] Rancho Mission Viejo; E-facing slopes above an unnamed tributary to San Juan Creek 183 Comment
  UCR191776  Calochortus catalinae A. C. Sanders, Fred M. Roberts 2008-3-25 34568 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
  UCR215276  Calochortus catalinae Fred M. Roberts 2008-5-7 6938 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
  CAS-BOT-BC483374  Calochortus invenustus Le Roy Abrams 1901-6-15 1848 Orange Summit of Santiago Pk. Comment
  JEPS61716  Calochortus splendens Alice King May 1908 Orange Santa Ana Mts. Comment
  RSA708237  Calochortus splendens Fred M. Roberts, Robert L. Allen, Chris Barnhill, Nancy Hatfield 2005-5-30 6234 Orange Southwest arm of Modjeska Peak, 1.2km SW summit, Main Divide Rd. near jct. of road to summit. 1533 Comment
  UCR16063  Calochortus splendens K. T. Ingram 1976-5-2 s.n. Orange Peninsular Range; Santa Ana Mtns., Ortega Highway, Route 74, 12 mi. east of Hwy 405 Comment
  UCR191023  Calochortus splendens A. C. Sanders, Fred M. Roberts 2008-4-22 35013 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
  CAS-BOT-BC492701  Calochortus splendens Philip A. Munz 1949-5-26 13371 Orange Skyline Drive, at head of Sierra Canyon; Santa Ana Mountains 762 Comment
  RSA369038  Calochortus splendens N. C. Cooper 1944-6-4 1316 Orange Elsinore Mountain. 1067 Comment
  RSA761930  Calochortus splendens Suzanne Espino 2005-4-26 1 Orange Caspers Wilderness Park, East Ridge Trail. Near water tank 168 Comment
  SEINET7067520  Calochortus striatus A. G. Vestal 1947-6-12 s.n. Orange Along a tributary of Arroyo Trabuco. Trabuco Creek. Coordinate datum: NAD27. UTM Zone 11, 444413mE, 3723361mN. Comment
  UCSB50637  Calochortus weedii Roberts, Fred 1982-7-8 Orange Laguna Niguel; canyone near Pacific Island Dr., 1.4 km ESE Aliso Peak, 1.1km NE Bench Mark 133 205 Comment
  SEINET5259809  Calochortus weedii Unknown 1995-7-3 29 Orange from Hugh McDonald's living collection; growing in Berkeley, CA Comment
  NY1104587  Calochortus weedii var. intermedius J. T. Howell 1927-6-22 2572 Orange On N side of Santa Ana Canon [Santa Ana Canyon] 244 Comment
  RSA690971  Calochortus weedii var. intermedius Scott D. White, Michael Honer 2003-5-29 9427 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
  RSA699753  Calochortus weedii var. intermedius Fred M. Roberts, David E. Bramlet 2003-6-6 5884 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, Cristianitos Cyn., 0.7km SW int. Cristianitos and TRW Rds. and 0.23km W of SDG&E substation. 119 Comment
  RSA741726  Calochortus weedii var. intermedius R. E. Riefner 2008-6-11 8 -150 Orange Irvine Ranch Reserve, Fremont Canyon Conservation Easement, W Fremont Canyon, Coalmine SCE Rd. 366 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
  RSA773559  Calochortus weedii var. intermedius Fred M. Roberts 2008-6-3 7025 Orange Lomas de Santiago: Loma Ridge, East Fork Rattlesnake Canyon, ca. 2.3 km ENE of Rattlesnake Reservoir spillway and 2.2 km ENE Bee Peak 217 Comment
  UCR119314  Calochortus weedii var. intermedius R. E. Riefner Jr. 2000-6-26 20- 581 Orange Santa Ana Mountains, North Ranch Policy Plan Area, along dirt road running N from Baker Canyon Road 305 Comment
  RSA0037247  Calochortus weedii var. intermedius Sandy Leatherman, Melissa Riedel-Lehrke 2013-5-30 2013 -8 Orange Coastal Plains & Basins; South Coastal Plain region: South Orange County, 1.4 miles east of the intersection of Antonio Parkway and Crown Valley Parkway, in the undeveloped foothills. Comment
  RSA17143  Calycadenia tenella C. B. Wolf 1936-6-17 7946 Orange Santa Ana Mountains, along Ortega Highway 5.6 miles above San Juan Capistrano. 76 Comment
  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
  RSA795  Calycadenia tenella J. T. Howell 1927-7-28 511 Orange Nolina Canyon, Rancho Santa Ana 152 Comment
  UCR191248  Calycadenia tenella A. C. Sanders 2008-4-29 35130 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
  RSA696924  Calycadenia tenella Dorothy Parsons 1932-5-3 s.n. Orange Irvine Park. Comment
  JEPS52574  Calyptridium monandrum Alice King April 1908 Orange Santa Ana River Comment
  UC7754  Calyptridium monandrum C. W. Hamlin 1896-1 8 Orange Buena Park Comment
  RSA732151  Calystegia macrostegia A. C. Sanders, Fred M. Roberts 2008-4-22 35016 Orange Lomas de Santiago, lower Hicks Canyon haul road, just above Irvine Ranch gate and road to cement plant, c. 1 mile NE of Rattlesnake Reservoir. 213 Comment
  UCR16115  Calystegia macrostegia S. Riddell 1973-5-17 730517- 22 Orange Hwy S-18, 10 mi east of Interstate Hwy 5 91 Comment
  UCR191333  Calystegia macrostegia A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34616 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 290 Comment
  RSA710302  Calystegia macrostegia subsp. arida R. K. Brummitt 1998-5-23 19994 Orange 17 km NE of San Juan Capistrano on Rte. 74. 200 Comment
  CLARK-A1528-928  Calystegia macrostegia subsp. cyclostegia Patricia A. Andrews 1975-6-26 5907 Orange Capistrano Bay Beach 9 Comment
  IRVC985  Calystegia macrostegia subsp. cyclostegia D. Van Gorden 1965-5-10 Orange Huntington Beach Comment
  JEPS31649  Calystegia macrostegia subsp. intermedia L. M. Booth 1932-5-19 Orange Newport Bay Comment
  CSUSB669  Calystegia macrostegia subsp. longiloba Donna C. Stonewall 1966-4-8 23 Orange Modjeska Canyon Modjeska Canyon Road, Modjeska Canyon 365 Comment
  LA50071  Calystegia macrostegia subsp. tenuifolia W. Pequegnat; 1937-8-31 99 Orange Santa Ana Mts 761 Comment
  RSA394914  Calystegia macrostegia subsp. tenuifolia H. L. Bauer 1929-5-7 s.n. Orange Santa Ana Canyon Comment
  IRVC1057  Camelina microcarpa D. Van Gorden 1965-4-15 Orange 27th St. Newport Beach Comment
  RSA159495  Camissonia bistorta Thomas Craig 1928-3-31 778 Orange Santa Ana Mountains, Silverado Canyon. Comment
  RSA466969  Camissonia bistorta M. B. Dunkle 1933-4-9 3280 Orange Dana Point. Comment
  RSA498  Camissonia californica J. T. Howell 1927-6-5 39 Orange Rancho Santa Ana, near east boundary. 152 Comment
  UCR42387  Camissonia cheiranthifolia A. C. Sanders 1986-5-31 6523 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
  POM201888  Camissonia cheiranthifolia subsp. suffruticosa L. M. Booth 1932-5-25 1114 Orange Balboa Island, Newport Bay. Comment
  POM311863  Camissonia cheiranthifolia subsp. suffruticosa Stephen Cunnison 1962-5-2 8 Orange 1 1/2 miles northwest of Newport Harbor entrance on Balboa peninsula. 3 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
  RSA698255  Camissonia cheiranthifolia subsp. suffruticosa Minor Warne 1934-04 s.n. Orange Sand hills along the coast. Comment
  HSC94213  Camissonia hirtella D. Atwood 1993-3-28 17714 Orange Bolsa Chica Ecological Reserve, California Dept. of Fish and Game. 0 Comment
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Jul 14 2012
  RSA731986  Camissonia hirtella A. C. Sanders, Fred M. Roberts 2008-4-8 34775 Orange Peninsular Range: Lomas de Santiago, SSE os f Santiago Reservoir on Harding Truck Trail at Dripping Springs Loop, above Limestone Canyon. 475 Comment
  UCR191366  Camissonia hirtella A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34624 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 290 Comment
  RSA542490  Camissonia micrantha Fred M. Roberts, T. Sholars, B. Stechmeyer 1988-3-29 3880 Orange Santa Ana Mountains: Hot Springs Canyon, 0.5 km by road north Hwy 74, 0.9 km ESE Juan Rancho Survey Marker. 223 Comment
  UC1377639  Camissoniopsis bistorta John Ingram 1960-3-14 244 Orange on La Palma Avenue two blocks e Knotts Berry Farm; Buena Park Comment
  UCR281558  Camissoniopsis bistorta Mitch Provance, Jeremiah George 2017-3-20 317- 113 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
  SBBG40397  Camissoniopsis bistorta J. Ingram 1960-3-14 244 Orange La Palma Ave, ca. 2 blocks E of Knotts Berry Farm, Buena Park Comment
  LA83158  Camissoniopsis cheiranthifolia O. H. Kappler; 1943-5-16 412 Orange S of Huntington Beach Comment
  CAS-BOT-BC160448  Camissoniopsis cheiranthifolia subsp. suffruticosa David D. Keck 1933-9-21 2523 Orange Sunset Beach Comment
  CAS-BOT-BC160449  Camissoniopsis cheiranthifolia subsp. suffruticosa David D. Keck 1933-9-21 2523 Orange Sunset Beach Comment
  CHSC60116  Camissoniopsis cheiranthifolia subsp. suffruticosa S. P. Gallagher 1988-4-2 Orange Bolsa Chica State Beach ca 1 mi s of Warner St. 0 Comment
  SD87558  Camissoniopsis cheiranthifolia subsp. suffruticosa F. W. Peirson 1924-5-31 4670 Orange 5.0 miles south of Laguna; on sea bluffs. Comment
  SDSU3347  Camissoniopsis cheiranthifolia subsp. suffruticosa Peter Raven 1957-9-28 11372 Orange South of Seal Beach Comment
  UC306300  Camissoniopsis cheiranthifolia subsp. suffruticosa D. L. Crawford 1916-7-28 Orange Abalone Point Laguna Beach Region (sand dunes) Comment
  UC523554  Camissoniopsis cheiranthifolia subsp. suffruticosa David D. Keck 1933-9-21 2523 Orange dunes about town Sunset Beach Comment
  IRVC22958  Cannabis sativa Karlin G. Marsh 1986-10-25 Orange [Santa Ana Canyon], Featherly Park; lawn weed. Yorba Linda Comment
  IRVC25563  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
  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
  IRVC1076  Cardamine californica E. Cowper 1965-3-1 Orange [Newport] Back Bay. Newport Beach Comment
  LA204281  Cardamine californica C. B. Wolf; 1931-1-30 1826 Orange Santa Ana Mountains, Claymine Canyon 304 Comment
  UC484232  Cardamine californica var. californica C. B. Wolf 1931-1-30 1826 Orange Claymine Canyon , Claymine Canyon (Santa Ana Mts.) 304 Comment
  POM8092  Cardamine californica var. integrifolia P. A. Munz, R. D. Harwood 1920-4-24 3740 Orange Santa Ana Mountains, Sierra [Freemont] Canyon 366 Comment
  RSA2078  Cardamine californica var. integrifolia C. B. Wolf 1931-3-6 1851 Orange Trabuco Canyon at Trabuco Camp Grounds, west slope of Santa Ana Mountains. 610 Comment
  RSA2106  Cardamine californica var. integrifolia C. B. Wolf 1931-1-30 1826 Orange Claymine Canyon, Santa Ana Mts. 305 Comment
  RSA369328  Cardamine californica var. integrifolia Albert J. Perkins 1913-3-6 s.n. Orange San Juan Hot Springs Comment
  UC1543081  Cardionema ramosissimum Donald G. Nelson 1935-4-14 288 Orange mesa facing Newport Bay (along main coast hwy., Newport Beach); Newport Beach Comment
  UCR177287  Cardionema ramosissimum Scott D. White, Amanda Duchardt 2003-5-1 9149 Orange Santa Ana Mountains, Slopes above the west side of Canada Gobernadora and adjacent small canyon to the west 122 Comment
  CAS-BOT-BC17635  Carex alma Helen D. Geis 1902-1-1 503 Orange Near Santa Ana. Comment
  UCSB47610  Carex barbarae Roberts, Fred 1980-5-3 Orange Santa Ana Mtns., San Juan Canyon, near mouth of Viejo Cyn.: below Rte. 74; 2.7 km. by road ENE San Juan Guard Station; 0.4 km. WSW Bm 1100 290 Comment
  CAS-BOT-BC119007  Carex pellita Helen D. Geis 1902-4-1 559 Orange Unspecified Comment
  CAS-BOT-BC119005  Carex pellita Helen D. Geis 1902-4-1 s.n. Orange Santa Ana. Peat lands. Comment
  CAS-BOT-BC118482  Carex praegracilis Helen D. Geis 1902-1-1 505 Orange Unspecified Comment
  CAS-BOT-BC118496  Carex praegracilis Helen D. Geis 1902-1-1 504 Orange Near Santa Ana Comment
  CAS-BOT-BC118502  Carex praegracilis Helen D. Geis 1902-4-1 505 Orange Santa Ana Comment
  POM1460  Carex praegracilis I. M. Johnston 1918-5-5 1890 Orange El Toro. 76 Comment
  UC212128  Carex praegracilis I. M. Johnston 1918-5-5 1890 Orange El Toro 76 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
  IRVC24536  Carpobrotus edulis J. Johnson 1976-8-10 Orange Newport [Back] Bay. Newport Beach Comment
  POM6405  Castilleja affinis Philip A. Munz, Street, Williams 1919-5-3 2616 Orange Santa Ana River Canyon. Comment
  RSA588797  Castilleja affinis Fred M. Roberts, Dave Bontrager 1990-4-18 4563 Orange Rancho Mission Viejo: ridge between Christanitos and Gabino Canyons (Riverside Cement Lease Holding), 5.5 km SE Playa Survey Marker. 152 Comment
  RSA734016  Castilleja affinis A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34609 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir. 366 Comment
  RSA264581  Castilleja affinis C. W. Tilforth, Dorothy Tilforth 1977-6-3 1259 Orange Large wash west of Weir Canyon, c. 10 mi. w. of Corona, south side of Santa Ana River. 152 Comment
  RSA425875  Castilleja affinis T. W. Minthorn 1928-4-1 s.n. Orange Balboa Palisades. Comment
  SDSU9686  Castilleja affinis subsp. affinis Curtis B. Kendall 1994-5-18 18 VI94B Orange County open-space, 100 meters west fo entrance gate to the National Audubon Society Starr Ranch Sanctuary, on south edge of access road. 317 Comment
  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
  UCR150921  Castilleja affinis subsp. affinis Valerie Soza, LeRoy Gross 1999-6-7 480 Orange Santa Ana Mountains, West side of Modjeska Peak, along Main Divide Road 1448 Comment
  SBBG52723  Castilleja applegatei subsp. martinii C. Davidson 1977-5-18 5628 Orange Bear Springs, Santa Ana Mtns 1219 Comment
  UC1063470  Castilleja exserta A. Lewis 1934-3-1 369 Orange Black Star Canyon; Corona Quad. 457 Comment
  RSA632421  Castilleja foliolosa Valerie L. Soza, LeRoy Gross 1999-6-10 520 Orange Santa Ana Mountains: Southwestern extension of Modjeska Peak, off dirt road to summit, off Main Divide Road. 1555 Comment
  RSA764938  Castilleja foliolosa Doris Bowers 1971-4-19 1681 Orange Black Star Canyon Indian Site 762 Comment
  RSA0042558  Castilleja foliolosa Paul Shirokawa 1998-4-24 4 Orange Cleveland National Forest; Trabuco Ranger District, 2.3 miles from Ortega Highway (State Highway 74) on North Main Divide Road. 960 Comment
  UCR14364  Castilleja minor subsp. spiralis Steve Kulju 1974-5-27 s.n. Orange Peninsular Range; Santa Ana Mtns, San Juan Canyon, 16 mi SW of Lake Elsinore on State Hwy 74 488 Comment
  UCR174192  Castilleja minor subsp. spiralis A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33007 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
  RSA542653  Caulanthus heterophyllus Fred M. Roberts 1988-3-9 3843 Orange Laguna Beach, Goff Ridge, along Nyes Place, 0.9km NE Goff Island. 169 Comment
  UCD114545  Caulanthus heterophyllus D. E. Bramlet 2008-3-31 4134 Orange Santa Ana Mountains. 305 m E of Upper Hicks Haul Road, in Trib to Limestone Cyn., 1 km S of Santiago Cyn. Road. 311 Comment
  UCD114584  Caulanthus lasiophyllus D. E. Bramlet 2008-3-31 4133 Orange Santa Ana Mountains. 305 m E of Upper Hicks Haul Road, in Trib to Limestone Cyn., 1 km S of Santiago Cyn. Road. 311 Comment
  CAS-BOT-BC48490  Ceanothus crassifolius D. O. Burge 2007-3-22 805 b Orange Santa Ana Mountains, Cleveland National Forest, 2.3 road miles (3.7 km) from Hwy 74 on USFS Road 3S04, Comment
  RSA755789  Ceanothus crassifolius Dylan O. Burge 2007-3-22 DOB 805 c Orange Santa Ana Mountains, Cleveland National Forest, 2.3 road miles from Highway 74 on USFS Road 3S04, 28.9 kilometers 50 degrees true east-northeast of San Juan Capistrano. 960 Comment
  UCSB48018  Ceanothus crassifolius Roberts, Fred 1981-4-11 Orange Santa Ana Mtns., Long Cyn., 2.3km SE Blue Jay Campground, along forestry road, 1.0km W Hwy 74, 243 Comment
  SBBG104029  Ceanothus crassifolius var. crassifolius B. Pitzer, S. Hemstreet 1992-5-21 1949 Orange St Hwy 74, 1 mi uphill from the 2000 ft marker, and to the left ca. 0.1 mi on old paved rd 762 Comment
  SBBG4156  Ceanothus crassifolius var. crassifolius M. Van Rensselaer 1936-7-7 Orange Ortega Hwy (St Hwy 74) Comment
  RSA797906  Ceanothus integerrimus Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49816 Orange Santa Ana Mountains: Trabuco Canyon. Comment
  UC718385  Ceanothus integerrimus P. C. Everett 1935-6-18 7214 Orange Summit of Santiago Pk. Santa Ana Mts. 1731 Comment
  LA44871  Ceanothus leucodermis W. Pequegnat; 1938-9-3 sn Orange Santa Ana Mountains, Ortega Rd 548 Comment
  RSA708282  Ceanothus megacarpus Scott D. White, Jennifer H. Jones 2005-3-31 10855 Orange South Coast: City of Laguna Beach. 549 Nyes Place. Proposed home site on ca. 0.5 acre. 91 Comment
  SBBG45051  Ceanothus megacarpus var. megacarpus J. T. Howell 1927-6-26 228 Orange Claymine Cyn near Sierra Pk 701 Comment
  RSA0054960  Ceanothus oliganthus Keith E. Hoffmaster 1936-4-5 707 Orange Black Star can., Santa Ana Mts. Comment
  RSA95352  Ceanothus oliganthus F. W. Peirson 1923-5-6 3494 Orange Trail to Santiago Peak from Holy Jim Canyon. 991 Comment
  LA44933  Ceanothus palmeri W. E. Pequegnat; 1937-9-6 sn Orange Santa Ana Mountains, Ortega Rd Comment
  RSA399811  Ceanothus papillosus var. roweanus Albert J. Perkins 1917-4-21 s.n. Orange Santiago Peak. South side. Comment
  RSA716773  Ceanothus papillosus var. roweanus Fred M. Roberts, Michelle Balk, Robert Allen, Chris Barnhill 2004-6-19 6064 Orange Snta Ana Mtns.: Holy Jim Cyn.: Holy Jim Trail, 2.0 km SE summit of Santiago Peak. 988 Comment
  CAS-BOT-BC53006  Ceanothus spinosus Carl B. Wolf 1941-6-27 10896 Orange Santa Ana Mts., San Juan Canyon, Ortega Highway 1 5/10 mi. W. of Riverside Co. line 274 Comment
  UC1071372  Ceanothus spinosus A. Lewis Apr 1934 383 Orange Santiago Canyon Cleveland National Forest, Corona Quad. Comment
  UCD112711  Ceanothus spinosus R. W. 1933-4-1 s.n. Orange Near Capistrano. 304 Comment
  RSA0035211  Cenchrus setaceus Sandy Gray 1981-04 1 Orange Hwy. 142, Carbon Canyon Rd. 3 miles west of Cavida, Chino. Comment
  POM202165  Centaurea melitensis L. M. Booth 1932-5-26 1117 Orange Newport Bay. Comment
  RSA184117  Centaurea melitensis I. L. Wiggins 1966-5-25 20663 Orange Along Nutwood Lane S margin of campus of CSCF, Fullerton Comment
  RSA647885  Centaurea melitensis Mark Breidenbaugh, Caralisa Breidenbaugh 1992-5-24 35 Orange 1000 ft. northwest of Chino Hills State Park Boundary. 243 Comment
  UCR103155  Centaurea repens Scott D. White 1997-3-26 4818 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
  UCR130341  Centaurea repens A. C. Sanders, Mark A. Elvin 2003-10-12 27321 Orange Southern Coastal Slope, Irvine, UCI Arboretum, UCI campus near intersection of Jamboree Blvd. and Campus Dr. 15 Comment
  IRVC27937  Centaurea repens A. C. Sanders, Mark A. Elvin 2003-10-12 27321 Orange Irvine; UCI Arboretum, UCI campus near intersection of Jamboree Blvd and Campus Dr. Southern Coastal 15 Comment
  CDA7332  Centaurea solstitialis T. C. Fuller 1962-6-7 8869 Orange North end of Fullerton Golf Course. Fullerton 0 Comment
  IRVC19363  Centaurium venustum R. L. Allen Jul 1977 s.n. Orange Santa Ana Mountains; [San Juan Canyon], Ortega Hwy, road side 111. Peninsular Ranges Comment
  RSA391496  Centaurium venustum Robert Gustafson, Gary D. Wallace 1983-6-26 2706 Orange Santa Ana Mts, Clinton Keith Road near the Jct with the Tenaja road. Comment
  RSA298932  Cephalaria syriaca M. Alice King 1908-4-15 s.n. Orange Walnut grove. Santa Ana. Comment
  RSA687522  Cerastium glomeratum Fred M. Roberts 2003-3-27 5630 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
  RSA5338  Cercocarpus betuloides B. D. Stark 1933-1-4 s.n. Orange Ridge above Claymine Canyon. No. end of Santa Ana Mts. 229 Comment
  RSA708722  Cercocarpus betuloides Fred M. Roberts, Robert L. Allen, Chris Barnhill, Nancy Hatfield 2005-5-30 6226 Orange west slope of Modjeska Peak, Harding Canyon watershed, Main Divide Road, 0.46km W summit. 1670 Comment
  UCR98300  Cercocarpus betuloides Scott D. White 1997-3-28 4827 Orange Santa Ana Mountains, Above Modjeska Canyon, proposed water tank site. 488 Comment
  SD247726  Cercocarpus betuloides var. betuloides R. F. Thorne, C. W. Tilforth, E. W. Lathrop. 1977-4-27 49704 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  CAS-BOT-BC279501  Chaenactis artemisiifolia R. K. Brummitt 1998-5-23 19996 Orange San Juan Canyon, 22 km NE of San Juan Capistrano on Rte. 74 300 Comment
  RSA443833  Chaenactis artemisiifolia Gordon Marsh 1978-5-27 s.n. Orange Silverado Canyon. Silverado Canyon Rd, 0.4 mi. E of Post Office at bridge corssing Comment
  RSA810  Chaenactis artemisiifolia J. T. Howell 1927-6-5 36 Orange just to E of Rancho Santa Ana 152 Comment
  CAS-BOT-BC279499  Chaenactis artemisiifolia Steve Boyd; Tim Ross 1992-5-20 7454 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of the wilderness in Lucas Canyon along a new section of trail heading up major side canyon northward to Sitton Peak Road (7S09) 457 Comment
  RSA627556  Chaenactis artemisiifolia Sandy Leatherman, Fred M. Roberts, Trish Smith 1998-5-23 24 Orange Black Star Canyon: Spur Road off of Black Star Canyon Road. Area burned during spring 1998 400 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
  UC1543106  Chaenactis glabriuscula var. glabriuscula Donald G. Nelson 1935-4-14 281 Orange edge of dry mesa facing Newport Bay (and the ocean, along the main coast highway); Newport Beach 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
  RSA648946  Chamaesyce albomarginata Mark Breidenbaugh, Caralisa Breidenbaugh 1992-5-25 62 Orange 1/2 mile south of Chino Hills State Park Boundary. 228 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
  RSA3130  Chamaesyce polycarpa var. polycarpa C. B. Wolf 1932-2-15 s.n. Orange Rancho Santa Ana Botanic Garden. 183 Comment
  RSA542539  Chamaesyce polycarpa var. polycarpa Fred M. Roberts, Dar A. Roberts 1989-3-22 4221 Orange Aliso-Wood Canyons Regional Park: Wood Canyon, 3.6 km S Moulton Peak. 43 Comment
  RSA788248  Chamaesyce polycarpa var. polycarpa R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49624 Orange Santa Ana Mountains: along Ortega Highway (74), about 1/4 mile above San Juan Fire Station Comment
  RSA798090  Chamaesyce supina R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49581 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74) Comment
  IRVC846  Chamomilla suaveolens C. Weir 1965-4-17 Orange Newport Beach; Balboa Island. Southern Coastal Comment
  IRVC26744  Chasmanthe floribunda Mark A. Elvin, J. Liou, J. Carpenter, J. Nguyen 2004-3-8 3181 Orange UCI Arboretum Southern Coastal 15 Comment
  RSA33593  Cheilanthes clevelandii Norman C. Cooper 1944-6-4 1339 Orange San Juan Canyon, lower camp ground. 457 Comment
  SEINET10793742 Image available Cheilanthes clevelandii Michael D. Windham 1998-3-31 Windham 98 -088 Orange Along tributary of Hot Spring Canyon in the Santa Ana Mountains, ca. 3.00 km SE of Crow Spring. Cleveland National Forest. Canada Gobernadora Quadrangle (7.5 min.). UTM-3718150 m.N by 453065 m.E (Zone 11). 320 Comment
  SEINET3869782  Cheilanthes clevelandii M. D. Windham 1998-3-31 98 -088 Orange Along tributary of Hot Spring Canyon in the Santa Ana Mts. ca. 3.00 km SE of Crow Spring. Cleveland N.F. Canada Gobernadora Quad ( 7 1/2 min. ).; 0 320 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
  RSA685793  Cheilanthes newberryi Albert J. Perkins 1913-3-6 s.n. Orange San Juan Hot Springs Comment
  RSA797474  Cheilanthes newberryi R. F. Thorne 1977-11-21 49987 Orange Santa Ana Mountains: tributary canyon to San Juan Canyon about 2 miles above San Juan Fire Station Comment
  UCD137350  Cheilanthes newberryi Beecher Crampton 1963-5-7 6788 Orange Santa Ana Mountains, Lower San Juan Canyon, ca. 11 miles northeast of San Juan Capistrano, State Hwy. 74. Comment
  RSA685772  Cheilanthes newberryi T. R. Pray 1961-2-14 1824 Orange San Juan Canyon along Ortega Hwy, near bridge just west of Cleveland National Forest Comment
  IRVC20219  Chenopodium ambrosioides Fred M. Roberts 1982-10-1 821 Orange Niguel Hill, west flank, 2.7km NNE Aliso Peak; 0.9km WNW Alicia Fire Station, Laguna Niguel 157 Comment
  POM678  Chenopodium ambrosioides D. L. Crawford 1916-7-26 s.n. Orange Laguna Canyon. Comment
  RSA64759  Chenopodium ambrosioides var. ambrosioides F. W. Peirson 1924-8-29 5079 Orange 6 miles from Balboa on road inland along creek. Comment
  UC284872  Chenopodium berlandieri P. A. Munz 1923-9-7 7746 Orange Santiago Peak Santa Ana Mts. 1722 Comment
  RSA478480  Chenopodium californicum Albert J. Perkins 1909-7-4 s.n. Orange Arch Beach. Canon near beach. Comment
  RSA680913  Chenopodium californicum Scott D. White 2003-3-21 8798 Orange Santa Ana Mountain Foothills: Rancho Mission Viejo. East-facing slopes above an unnamed tributary to San Juan Creek. 122 Comment
  RSA625806  Chenopodium californicum Scott D. White, Noel Davis 1998-5-21 6546 Orange Santa Ana Mountains, Mission Viejo Area: Aliso Creek watershed, east of El Toro Road just N of junction w/ Valley Vista Way., 33 deg 40.5 N, 117 deg 37 W. 305 Comment
  UCR237847  Chenopodium glaucum Mark A. Elvin 2003-2-2 2276 Orange South Coast, San Joaquin Marsh, UCI campus SSE of intersection of Jamboree Blvd. and Campus Dr. 2 Comment
  UC536904  Chenopodium macrospermum var. halophilum L. M. Booth 1933-9-8 1390 Orange Anaheim Marsh; coast of Orange Co. Comment
  RSA696277  Chenopodium multifidum Keith E. Hoffmaster 1932-8-26 s.n. Orange Santa Ana. Comment
  UCR192988  Chenopodium multifidum A. C. Sanders, Fred M. Roberts 2008-6-17 35476 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Agustine staging area near Limestone Canyon Rd. gate at Santiago Cyn Rd. 260 Comment
  RSA581663  Chenopodium multifidum Tony Bomkamp 1995-06 s.n. Orange Rancho Mission Viejo, floodplain of Canada Gobernadora W of Casper Regional Park. 140 Comment
  CHSC35781  Chenopodium murale James Henrickson 1972-10-21 8057 Orange Eastern Anaheim, 2 blocks E. of Imperial Hwy. along La Palma Ave., just N. of Santa Ana River. 60 Comment
  RSA752040  Chenopodium murale Fred M. Roberts 2008-3-27 6808 Orange Dana Point: Dana Point Headlands, CNLM Preserve near NE Gate, 0.5km W Marine Institute (Dana Point Harbor). 75 Comment
  SD218311  Chenopodium murale Mark A. Elvin 2004-5-2 3403 Orange San Joaquin Freshwater Marsh near Campus and University Drs., 1.7 km (air) NNW UC Irvine campus center. 3 Comment
  SEINET6652877 Image available Chenopodium murale T. C. Arambula 1966-1 7 Orange Fullerton, North side of Carolina Ave. & Brea-Olinda Blvd, east of Fullerton Comment
  UCR237824  Chenopodium murale Mark A. Elvin 2003-2-2 2281 Orange South Coast, San Joaquin Marsh, UCI campus SSE of intersection of Jamboree Blvd. and Campus Dr. 2 Comment
  SD136860  Chenopodium murale Steve Boyd, Tim Ross 1994-9-14 8347 Orange San Mateo Canyon Wilderness Area of the Cleveland National Forest, Lucas Canyon Trailat stream crossing in Aliso Canyon. 341 Comment
  UCSB48085  Chenopodium murale Roberts, Jr., Fred 1981-5-2 Orange Mission Viejo; Camino Capistrano, 1.7 km. N Crown Valley Parkway 49 Comment
  CLARK-A1528-976  Chenopodium rubrum Patricia A. Andrews 1975-6-26 5926 Orange Capistrano Bay Beach 9 Comment
  RSA588716  Chlorogalum parviflorum Fred M. Roberts, Carol A. Roberts 1990-6-12 4681 Orange Santa Ana Mountains: tributary to Lower Fremont Canyon, 7.8 kilometer SW Sierra Peak. 320 Comment
  CAS-BOT-BC497716  Chlorogalum pomeridianum Le Roy Abrams 1901-6-1 1782 Orange Laguna Comment
  SD134406  Chorizanthe procumbens Craig Reiser 1991-4-18 Orange Dana Point Headlands Comment
  CAS-BOT-BC255252  Chorizanthe staticoides Helen D. Geis 1902-1-1 542 Orange Santa Ana Comment
  JEPS57639  Chorizanthe staticoides Lawrence M. Booth 1932-5-12 1031 Orange Newport Bay. Comment
  RSA13173  Chorizanthe staticoides Percy C. Everett 1935-4-29 6711 Orange 7/10 of a mile west of Esperanza, Santa Ana canyon.. 152 Comment
  RSA392685  Chorizanthe staticoides Ella M. Kennedy 1923-5-14 s.n. Orange Laguna Beach. Comment
  RSA539353  Chorizanthe staticoides Fred M. Roberts, Carol A. Roberts 1988-6-2 4041 Orange Silverado Canyon, Maple Springs Truck Trail, 4.3 km above gate., 1.0km WSW Bald Pk. 825 Comment
  RSA542530  Chorizanthe staticoides Fred M. Roberts 1987-3-30 3325 Orange Lomas De Santiago: Lomas Ridge, east fork Upper Serrano Canyon, 3.1k SE Bolero Lookout. 394 Comment
  RSA584706  Chorizanthe staticoides Fred M. Roberts, Kathy Keane 1988-5-26 4010 Orange Rancho Mission Viejo: hill above the confluence of Gabino Canyon and Christianitos Canyon, c.a. 1 km N TRW Testing facility. 157 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
  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
  RSA0015956  Chorizanthe staticoides subsp. chrysacantha Fred M. Roberts 2012-5-10 7566 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
  RSA682917  Chrysanthemum coronarium Scott D. White, Amanda Duchardt 2003-5-1 9168 Orange Santa Ana Mountain Foothills: Slopes above west side of Trampas Canyon. 107 Comment
  UC1598731  Cicuta maculata var. bolanderi Lawrence M. Booth 1932-7-29 1333 Orange Newport Lagoon Comment
  UC218029  Cirsium arvense Ethelbert Johnson 1922-6-12 Orange Xalisco; near Huntington Beach Comment
  POM11896  Cirsium arvense Johnson, Ethelbert 1922-6-12 s.n. Orange Kalisco, east of Huntington Beach Comment
  UCD130549  Cirsium arvense P. B. Kennedy 1924-2-13 s.n. Orange Huntington Beach District. Comment
  RSA721124  Cirsium californicum Minor Warne 1934-5-19 s.n. Orange Trabuco. Comment
  UCR109766  Cirsium occidentale var. californicum R. D. Goeden, Don W. Ricker 1965-6-21 s.n. Orange Dana Point 61 Comment
  CAS-BOT-BC285584  Cirsium occidentale var. occidentale John Thomas Howell 1927-6-6 2447 Orange Santa Ana River bottom, Santa Ana Canon [Canyon] 152 Comment
  IRVC617  Cirsium occidentale var. occidentale C. Orr 1965-3-27 Orange Trabuco Road, 3mi E El Toro Marine Base. El Toro Comment
  POM202373  Cirsium occidentale var. occidentale L. M. Booth 1932-6-7 1165 Orange Newport Lagoon. Comment
  CDA7427  Cirsium vulgare Jack Hill 1957-7-3 Orange 0 Comment
  IRVC22072  Cistaceae Fred M. Roberts 1983-4-7 978 Orange Niguel Hill, above Pacific Island Dr., 1.7km SE Aliso Peak, 3.0km SSW Alicia Fire Station, Laguna Niguel 239 Comment
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Feb 22 2019
  RSA569735  Cistanthe monandra A. S. Boughey 153 Orange Santa Ana Mountains: Ortega Hwy., ca. 1 mi. east of San Juan Guard Sta. Comment
  RSA448249  Clarkia bottae M. B. Dunkle 1933-5-30 s.n. Orange Carbon Canyon Comment
  RSA67766  Clarkia bottae G. R. Campbell 1951-5-30 16078 Orange San Juan Canyon, Ortega Hwy, 4 mi. inside west border of Cleveland National Forest 152 Comment
  UCR192105  Clarkia bottae A. C. Sanders, Fred M. Roberts, Amber O'Neal, D. E. Bramlet 2008-5-9 35307 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along old dirt road, c. 1.25 mi. ESE of Walnut Cyn Reservoir 340 Comment
  UCR228790  Clarkia bottae Dick Newell, Don Millar 2011-5-24 159 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Hicks Haul Road 286 Comment
  RSA0059997  Clarkia bottae Karl Price 1988-5-21 48 Orange An unnamed side canyon within Hot Springs Canyon. It is on Hot Springs Canyon Rd., 0.75 mi. North of Ortega Hwy. (74), 12.6 mi. East of San Juan Capistrano. 305 Comment
  UCR234145  Clarkia dudleyana Dick Newell, Judy Booth 2012-5-6 250 Orange Peninsular Range; Santa Ana Mtns., Maple Springs Road, 1.2 miles NE of Maple Springs gate, Cleveland National Forest 695 Comment
  SEINET8726152 Image available Clarkia elegans Jean Coulson 1959-1 s.n. Orange Disneyland, Orange County, California. Found in painted Desert at entrance to Rainbow mines. 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
  UCR224163  Claytonia parviflora subsp. parviflora Fred M. Roberts 2008-3-19 6779 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
  SFV16197  Claytonia perfoliata R. K. Stachelek, B. Anderson, F. Schropshire 1995-3-1 46 Orange Newport Beach, Upper Newport Bay on Back Bay Drive about 0.5 miles north of Shellmaker Island. Mesic roadside at base of coastal bluff adjacent to semi-disturbed coastal sage scrub area. Comment
  UCR241062  Claytonia perfoliata subsp. perfoliata Dick Newell, Don Millar 2013-2-5 314 Orange Peninsular Range; Santa Ana Mtns., mouth of Fremont Canyon at mouth, 1/2 mi. NE of Irvine Dam spillway 213 Comment
  UCR119303  Clematis lasiantha R. E. Riefner Jr., Adrian Wolf 2000-6-1 20- 455 Orange Santa Ana Mountains, North Ranch Policy Plan Area, north of Irvine Lake [Santiago Reservoir] and west of Black Star Canyon, west of dirt access road, W slope of Fremont Canyon. 473 Comment
  UC537273  Clematis ligusticifolia Lawrence M. Booth 1932-7-21 1290 Orange Anaheim Marsh Comment
  POM6466  Clematis pauciflora P. A. Munz, L. T. Street, G. Williams 1919-5-3 2651 Orange Santa Ana River Canyon. Comment
  RSA386282  Clematis pauciflora M. B. Dunkle 1936-3-14 4701 Orange San Juan Canyon. Comment
  RSA789221  Clinopodium chandleri Naomi S. Fraga, Duncan S. Bell 2009-5-11 2721 Orange Chiquita Trail 762 Comment
  CAS-BOT-BC180992  Cneoridium dumosum Cecil Hart 1928-5-27 s.n. Orange Laguna Beach Comment
  UCD116910  Cneoridium dumosum Raymond A. Evans 1951-3-23 s.n. Orange South of Laguna. 60 Comment
  UCSB48359  Cneoridium dumosum Roberts, Fred 1982-6-30 Orange Laguna Niguel: Pacific Island Dr., Niguel Hill, 2.0km SE Aliso Peak; 1.3km E Bench Mark 133 39 Comment
  RSA33582  Collinsia heterophylla N. C. Cooper 1944-6-4 1361 Orange San Juan Canyon, lower camp ground. 457 Comment
  IRVC21613  Comarostaphylis diversifolia var. diversifolia Fred M. Roberts 1984-3-31 1317 Orange Niguel Hill, 1.0km ENE Aliso Peak, 2.1km SW Alicia Fire Station, Laguna Niguel 275 Comment
  UCR186683  Conium maculatum T. B. Salvato, Katie Kurtz, Mitch Provance 2006-10-15 1904 Orange South Coast, Irvine, San Diego Creek flood control channel, between Campus Drive and Michelson Drive 6 Comment
  POM201632  Conium maculatum L. M. Booth 834 Orange Santa Ana Canyon Comment
  RSA357138  Conium maculatum R. F. Thorne 1975-4-6 45575 Orange San Joaquin Marsh: Near Irvine and coast. Comment
  RSA521  Conium maculatum J. T. Howell 1927-7-19 447 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  RSA699124  Conium maculatum J. Vlahos 1934-6-9 s.n. Orange Santa Ana River by Fairview. Comment
  RSA0099309  Convolvulus althaeoides E. L. Paddock 1941-6-5 116 Orange Along Santa Fe RR, 150 ft W of Placentia Ave. Comment
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Jan 4 2020
  IRVC969  Convolvulus arvensis L. Stilgenbauer 1965-5-5 Orange Corona del Mar High School. Newport Beach Comment
  RSA0013914  Convolvulus arvensis Fred M. Roberts 2012-5-10 7582 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
  UCSB52934  Convolvulus arvensis Roberts, Jr., Fred 1984-8-2 Orange Irvine; along Adobe Circle Road, UC Irvine, 0.9 km. ENE campus center; 2.3 km. W French Hill 30 Comment
  UCSB6907  Convolvulus arvensis Haller, Norman 1953-4-25 Orange U.S. 101, 3 miles northwest of Laguna Beach 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
  UCR193278  Conyza bonariensis A. C. Sanders, Fred M. Roberts 2008-6-17 35512 Orange Peninsular Range; Santa Ana Mtns., middle section of Weir Canyon, SSE of Walnut Canyon Reservoir 225 Comment
  RSA23577  Conyza bonariensis E. R. Johnson 1939-8-16 9535 Orange Santa Ana Canyon, Rancho Santa Ana, River bottom SW of Cypress Test Plot 122 Comment
  CAS-BOT-BC286164  Conyza canadensis Carl B. Wolf 1932-9-13 4041 Orange Bryant Ranch: North boundary between Flood Control Dike & well in S.E. 1/4 Sect. 25 (about 1300 ft. W. of N.E. corner of S.E. 1/4 Sect. 25 T4S R12 W. 20) 6 Comment
  RSA5968  Conyza canadensis C. B. Wolf 1932-9-13 4041 Orange Bryant Ranch, dike at east side of San Gabriel River Flood Control, at North boundary of ranch 6 Comment
  RSA234511  Conyza coulteri James Henrickson 1970-8-22 5297 Orange 2.5 miles NNW of Huntington Beach. 0 Comment
  SEINET12320812  Cordylanthus maritimus R. A. Schlising 1972-1 Orange Comment
  RSA486866  Cordylanthus maritimus subsp. maritimus Gordon Marsh 1974-5-29 14209 Orange On east side of upper Newport Bay 2 Comment
  UCR20628  Cordylanthus maritimus subsp. maritimus A. C. Sanders 1974-6-19 939 Orange Upper Newport Bay 3 Comment
  JEPS6777  Cordylanthus rigidus subsp. setiger John Thomas Howell 1927-6-26 2599 Orange Claymine Canyon Santa Ana Mts 365 Comment
  UC284871  Cordylanthus rigidus subsp. setiger P. A. Munz 1923-9-7 7745 Orange Santiago Peak Santa Ana Mts. 1645 Comment
  RSA506432  Cordylanthus rigidus subsp. setiger Kathy Harper 1988-7-16 s.n. Orange Cleveland National Forest, on Hwy 74 near El Cariso. SE of Hwy Comment
  SFV10455  Cordylanthus rigidus subsp. setigerus M. L. Vincent 1963-7-8 432 Orange 4 miles east of San Juan Capistrano. Comment
  RSA749039  Coreopsis tinctoria A. C. Sanders, Fred M. Roberts 2008-8-7 35981 Orange lower Weir Canyon, at narrow gorge c. 0.6 mi. above mouth of cyn at Irvine Ranch gate. 185 Comment
  SFV3855  Corethrogyne filaginifolia E. B. Carlton 1961-8-26 C 3 Orange Laguna Beach. Crest of ridge north of reservoir, "Top of the World" area. 305 Comment
  RSA715701  Corethrogyne filaginifolia var. virgata Fred M. Roberts, Robert L. Allen 2005-10-15 6312 Orange entrance to Falcon Group Camp, 2.1km ESE Los Pinos Peak and 0.3km NE campground. 1008 Comment
  IRVC24510  Coronopus didymus Fred M. Roberts 1986-3-14 2647 Orange University of California campus, south side of Alderich Park near Engineering Building, Irvine 33 Comment
  RSA679093  Cosmos bipinnatus Fred M. Roberts 2003-7-24 5966 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
  RSA735026  Cotula australis Scott D. White, Justin M. Wood 2008-4-10 11846 Orange Chino Hills: Powerline access road just N of CHSP boundary and just W of Orange/SB co. line. Approx. 1 mi. NW of Gilman Peak. 366 Comment
  SD94964  Cotula australis J. Harry Lehr 1976-2-14 910 Orange Santa Anna Street north of State College Blvd., Anaheim. Comment
  UCR102026  Cotula coronopifolia B. G. Pitzer 1997-4-15 3154 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
  UCR207795  Cotula coronopifolia O. F. Clarke 2004-4-5 s.n. Orange South Coast, Newport Back Bay 3 Comment
  CAS-BOT-BC77623  Cotyledon Le Roy Abrams 1917-6-23 6555 Orange Balboa Comment
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Dec 20 2019
  RSA696059  Cotyledon lanceolata Keith E. Hoffmaster 1928-5-29 s.n. Orange San Onofre. CP5. Comment
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Dec 20 2019
  CAS-BOT-BC427771  Crassula connata C. B. Wolf 1931-3-6 1844 Orange 1/2 mile above Trabuco Oaks, Trabuco Canyon, west slope Santa Ana Mts. 457 Comment
  UC1543005  Crassula connata Donald G. Nelson 1935-3-23 178 Orange just s. of <Orange thorpe> Ave. E. Fullerton Comment
  UCR237833  Crassula connata Mark A. Elvin 2003-2-2 2260 Orange South Coast, San Joaquin Marsh, UCI campus SSE of intersection of Jamboree Blvd. and Campus Dr. 2 Comment
  RSA682574  Crotalaria capensis A. C. Sanders, Mark Elvin 2003-10-12 27318 Orange Southern Coastal Slope: Irvine, UCI Arboretum, UCI campus near intersection of Jamboree Blve. and Campus Dr. 15 Comment
  OBI30078  Croton californicus L. Fountain 1966-4-1 72 Orange Near Rancho Santa Ana, at the end of Orangethorpe Ave Comment
  RSA0011253  Croton californicus Fred M. Roberts, Sandy Leatherman 2007-11-27 6670 Orange Yorba Linda: Santa Ana Canyon, Santa Ana River wash, S of E La Palma Road near Via Lomas de Yorba Linda, about 0.6 km W Gypsum Cyn. bridge. 113 Comment
  UCD141986  Croton californicus G. L. Webster 1966-12-11 7480 Orange Dana Point. Comment
  UCR210063  Croton setiger A. C. Sanders, Fred M. Roberts, Jutta Burger 2009-10-21 37194 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Limestone Canyon, west of Limestone Canyon Rd. 366 Comment
  SEINET6971880  Cryptantha W. P. Vestal, A. G. Vestal 1955-3-24 3451 D Orange Trabuco Canyon, about 5 miles east of El Toro. Comment
  IRVC15158  Cryptantha intermedia J. Schram 1965-5-9 Orange San Juan Capistrano Comment
  SDSU5475  Cryptantha intermedia A. M. White 1974-6-1 74 -671 Orange Ca. 20 m. east of Santa Ana; north of Silverado Canyon. 1006 Comment
  UC971737  Cryptantha intermedia L. M. Booth 1932-5-12 1028 Orange Newport Bay Comment
  UCR192450  Cryptantha intermedia A. C. Sanders, Fred M. Roberts 2008-3-25 34580 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
  UCR192499  Cryptantha intermedia A. C. Sanders, Fred M. Roberts 2008-3-25 34546 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  UCR223426  Cryptantha intermedia Dick Newell, Don Millar 2011-2-15 058 Orange South Coast, San Joaquin Hills, Laguna Wilderness Park, along Stagecoach Trail 131 Comment
  UCR5137  Cryptantha intermedia Barbara T. Gittins, O. F. Clarke 1966-3-19 897 Orange Pacific slope, Irvine Ranch, east of University of California Irvine campus, Newport Beach 91 Comment
  UCR157485  Cryptantha leiocarpa A. C. Sanders 1986-5-31 6529 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
  POM6631  Cryptantha microstachys P. A. Munz, L. T. Street, G. Williams 1919-5-3 2620 Orange Santa Ana River Canyon. Comment
  RSA0127598  Cryptantha microstachys Fred M. Roberts, Diane Etchison 2016-3-22 8028 Orange Lomas de Santiago: west of Irvine Lake and north of Santiago Canyon Road, southeastern slope of Hill 1332 near toe of slope, about 1.9km S Irvine Lake Dam spillway. 263 Comment
  RSA450853  Cryptantha microstachys Gordon Marsh 1978-3-17 s.n. Orange U.C. Irvine Ecological Preserve. 85 Comment
  UCR192462  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
  UCR47757  Cryptantha microstachys F. R. Fosberg 1930-6-15 S- 02937 Orange Santa Ana Mtns, Santiago Canyon, near Modjeska's home. Comment
  JEPS42641  Cucurbita foetidissima L. M. Booth 1933-10-18 Orange Newport Comment
  RSA0027425  Cucurbita foetidissima Fred M. Roberts 2013-7-18 7659 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
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Mar 6 2019
  RSA697187  Cucurbita foetidissima Anonymous 1933-1 s.n. Orange Vacant lot, Santa Ana. Comment
  UCSB48207  Cucurbita foetidissima Roberts, Fred 1981-7-8 Orange Rancho Mission Viejo: Calif. Rte. 74, 5.2 km ENE San Juan Capistrano by road 100 Comment
  UCR140973  Cupressus arizonica June Latting 1973-6-30 s.n. Orange Santa Ana Mountains, Beeks Place, south of Oak Flat 854 Comment
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Mar 28 2014
  CAS-BOT-BC80569  Cupressus forbesii W. M. Prince 1922-3-10 s.n. Orange Base of Santa Ana Mtns, So side of Santa Ana River Comment
  JEPS19317  Cupressus forbesii John Thomas Howell 1927-8-10 2983 A Orange w of Sierra Peak (at head of Claymine Canon); Santa Ana Mts., Claymine Canon 609 Comment
  MACF018551  Cupressus forbesii Ken Zysk 1971-3-29 P 80 Orange Collected at Harding Canyon, off Harding Canyon Rd. 396-1402 Comment
  RSA14452  Cupressus forbesii Philip A. Munz, I. M. Johnston 1922-5-18 5566 Orange Santa Ana Mts. Santa Ana River Canyon. Alluvial soil along canyon, 2d large canyon south of Orange County line. Comment
  RSA7204  Cupressus forbesii B. D. Stark 1933-3-17 4532 -G Orange Claymine Canyon, Santa Ana Mts. 609 Comment
  NY16664  Cupressus guadalupensis var. forbesii C. B. Wolf 1935-1-2 6279 Orange This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  NY16675  Cupressus guadalupensis var. forbesii C. B. Wolf 1935-1-2 6278 Orange This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  SEINET905825  Cuscuta R. J. Barr 1967-1 67 -176 Orange East of el Toro, Santa Ana Mountains. 182 Comment
  CAS-BOT-BC224408  Cuscuta californica John Thomas Howell 1927-6-3 2420 Orange Southern Puente Hills in the Santa Ana Canon [Canyon] 152 Comment
  CAS-BOT-BC224409  Cuscuta californica Carl B. Wolf 1932-7-2 3820 Orange Carbon Canyon, 1/8 mi. below La Vida Springs 213 Comment
  POM17859  Cuscuta californica P. A. Munz 1923-7-8 7330 Orange Santa Ana River Canyon Comment
  RSA409706  Cuscuta californica George Price 1967-5-14 s.n. Orange Silverado Canyon Comment
  RSA254969  Cuscuta salina C. W. Tilforth 1975-9-3 1037 Orange Northeast shoreline of Upper Bay, Newport Beach Comment
  SD43529  Cuscuta subinclusa Philip A. Munz 1946-10-2 11555 Orange Santa Ana River bottom, Rancho Santa Ana. Comment
  RSA759535  Cuscuta subinclusa Robt. Allen 2006-12-13 s.n. Orange Trabuco Canyon. About 2 mi. up from Live Oak Road, SW of Trabuco Truck Trail, in creekbed near base of north-facing hillside 395 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
  CAS-BOT-BC56704  Cylindropuntia californica John Thomas Howell 1927-6-22 2575 Orange Field redacted by CAS, contact the data manager for more information 152 Comment
  POM356392  Cynara cardunculus subsp. flavescens L. C. Wheeler 1932-6-22 850 Orange 1/2 miles N Newport Bay. 15 Comment
  UCD60070  Cynodon dactylon Beecher Crampton 1965-10-27 7578 Orange 2 miles east of Irvine, Irvine Blvd. Comment
  UCR193008  Cynodon dactylon A. C. Sanders 2008-5-28 35443 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Bee Flat at mouth of Limestone Canyon 264 Comment
  UCR246515  Cynodon dactylon Fred M. Roberts 2013-5-30 7778 Orange Lomas de Santiago, Santiago Creek Wash, at Santiago Canyon Road bridge, south side, 0.3 km west of the junction of Silverado and Santiago Canyon Roads 299 Comment
  RSA5809  Cynodon dactylon C. B. Wolf 1932-6-28 3773 Orange Bryant Ranch: along western half of north boundary of 40 acre Valencia orange grove at Bryant Ave. and Hansen Road. 9 Comment
  CAS-BOT-BC114565  Cyperus eragrostis Carl B. Wolf 1932-6-13 3721 Orange Fullerton, Malvern & Nicholas Aves. 53 Comment
  SBBG128577  Cyperus eragrostis R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49572 Orange San Juan Cyn at Lower Picnic Camp, just below Ortega Hwy (74); Santa Ana Mtns Comment
  UC520019  Cyperus eragrostis Joseph Andorfer Ewan 1932-7-9 7985 Orange 4 mi. below Rincon; Santa Ana River Comment
  POM1353  Cyperus erythrorhizos D. L. Crawford 1916-7-26 s.n. Orange Laguna Canyon. Comment
  RSA0043356  Cyperus erythrorhizos Fred M. Roberts, Laura Cohen 2012-10-31 7712 Orange San Joaquin Hills. Upper Laguna Lake, north end. Laguna Coast Wilderness Park, c. 5.1 km east northeast of Signal Hill. 113 Comment
  RSA365080  Cyperus erythrorhizos Anstruther Davidson 1917-08 3267 Orange Near Laguna Beach. Comment
  UCR247877  Cyperus erythrorhizos Fred M. Roberts, Laura Cohen 2012-10-31 7713 Orange San Joaquin Hills, Upper Laguna Lake, north end. Laguna Coast Wilderness Park, c. 5.1 km east northeast of Signal Hill 113 Comment
  RSA594874  Cyperus erythrorhizos Fred M. Roberts, W. R. Ferren 1991-12-1 4829 Orange San Joaquin Hills: Laguna Canyon, Upper Laguna Lake, 3.5 kilometers N junction El Toro Road, 4.9 kilometers ENE Signal Peak. 113 Comment
  CAS-BOT-BC114320  Cyperus esculentus Helen D. Geis 1902-9-1 s.n. Orange Ditch banks, Santa Ana. Comment
  IRVC29698  Cyperus esculentus Mark A. Elvin, Barry S. Nerhus 2006-11-4 5244 Orange Huntington Beach; 1.5 km SW of Wintersburg, SW of jct Slater and Goldenwest; Shipley Nature Center. Southern Coastal 1 Comment
  RSA0031763  Cyperus involucratus Robert F. Thorne 1977-11-21 50811 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs Comment
  CAS-BOT-BC114246  Cyperus laevigatus Carl B. Wolf 1932-7-2 3814 Orange Carbon Canyon, 1/8 mi below La Vida Springs. 213 Comment
  RSA5914  Cyperus laevigatus Carl B. Wolf 1932-7-2 3813 Orange Carbon Canyon, 1/8 mile below La Vida Springs 213 Comment
  UC729959  Cyperus laevigatus Carl B. Wolf 1932-7-2 3813 Orange 1/8 mi. below La Vida Springs (Carbon Canyon); Carbon Canyon 213 Comment
  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
  CAS-BOT-BC537198  Cyperus niger R. F. Thorne 1977-11-21 49999 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs Comment
  RSA92095  Cyperus niger var. capitatus F. W. Peirson 1924-10-19 5231 Orange Wintersberg Comment
  RSA710404  Cyperus odoratus Fred M. Roberts 2005-10-3 6292 Orange San Juan Capistrano: San Juan Creek wash, La Novia Road Bridge to 100m E of bridge, 1.4km E Mission San Juan Capistrano, 27 Comment
  RSA92111  Cyperus odoratus F. W. Peirson 1924-10-19 2532 Orange Wintersberg Comment
  RSA785389  Cyrtomium falcatum R. E. Riefner Jr. 2011-7-1 11 -83 Orange City of Newport Beach. Beach area west of the end of Cameo Shores Road. South ca. 1 mi from Poppy Ave. 2 Comment
  SD234213  Cyrtomium falcatum R. E. Riefner Jr. 2006-9-5 06 417 Orange Southern Coast Corona del Mar, Ocean Blvd., near Iris Ave. (Laguna BeaCH 7.5'q). 10 Comment
  UCR240194  Cyrtomium falcatum R. E. Riefner Jr. 2012-2-2 12- 19 Orange South Coast, city of Dana Point, cliff and rocky intertidal area 0.2 mi north of Salt Creek Lagoon 9 Comment
  SD28072  Dactylis glomerata Carl B. Wolf 1932-6-13 3715 Orange Fullerton, Rose Drive 53 Comment
  UCR157694  Dactylis glomerata Adrian Wolf 1998-5-15 269 Orange South Coast, Lambert Reservoir, north of El Toro Marine Corps Air Station 134 Comment
  UCD60300  Dactyloctenium aegyptium E. Wegener 1970-8-11 - 948 Orange Near Costa Mesa. Comment
  RSA717043  Datisca glomerata Fred M. Roberts, Chris M. Barnhill 2005-9-27 6286 Orange San Juan Capistrano: San Juan Creek wash, east of La Novia Road bridge, 1.4km E Mission San Juan Capistrano. 27 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
  UCR218615  Datura metel Robert DeRuff 2008-1 312 A Orange South Coast, Upper Newport Bay, between Mariner's Drive and 23rd St. 12 Comment
  JEPS12207  Datura stramonium Lawrence M. Booth 1932-7-30 1345 Orange near Newport Beach (Santa Ana River Basin); , near Newport Beach Comment
  RSA421914  Datura wrightii N. C. Cooper 1942-11-9 886 Orange Balboa. Comment
  IRVC17044  Daucus pusillus C. Thompson 1965-4-12 Orange Laguna Hills Comment
  UCR191224  Daucus pusillus A. C. Sanders 2008-4-29 35126 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, western end of Loma Ridge on road to sheriff's training facility, c. 1.5 mi. SW of Santiago Reservoir 335 Comment
  CAS-BOT-BC299332  Deinandra fasciculata L. R. Abrams 1917-6-23 6568 Orange Balboa Comment
  IRVC29253  Deinandra fasciculata Kay Stockwell 1999-7-13 s.n. Orange Cannon Road (extension of Imperial Hwy) at Goldenrod St. Peralta Hills 152 Comment
  JEPS12559  Deinandra fasciculata Lawrence M. Booth 1932-5-12 1038 Orange Newport Bay Comment
  UC303962  Deinandra fasciculata D. L. Crawford 1915-9-1 504 Orange Huntington Beach Comment
  RSA94100  Deinandra fasciculata F. W. Peirson 1924-8-29 5064 Orange Santa Ana Comment
  CAS-BOT-BC383062  Deinandra paniculata R. E. Riefner, Jr. 2008-5-19 08 -101 Orange Ladera Ranch, Cecil Pasture at Jerome Rd. 157 Comment
  RSA0073652  Deinandra paniculata Fred M. Roberts 2014-7-25 7882 Orange South Coastal Plain: San Joaquin Hills: Laguna Canyon, Nix Nature Center, Laguna Coast Wilderness Park, about 4.4 km E Signal Peak. 126 Comment
  SFV3981  Deinandra paniculata A. M. Johnson 1932-4-23 4006 Orange Dry hills north of Orange. Comment
  UCR254222  Deinandra paniculata R. E. Riefner Jr. 2013-8-16 13- 188 Orange South Coast, City of Dana Point, canyon west of Dana Hills High School, north of Stonehill Drive, east of Cortes Drive 86 Comment
  UCR274558  Deinandra paniculata R. E. Riefner Jr. 2014-6-3 14- 144 Orange City of Laguna Beach, Moulton Meadows, NE 0.1 mi. from Del Mar Ave. and Balboa Ave. along Mentally Sensitive Trail 266 Comment
  UCSB56508  Delairea odorata Marsh, G.; Marsh, K. 1978-1-22 Orange Santa Ana Mountains; Ladd Cnayon Comment
  UCR231162  Delphinium cardinale Dick Newell, Judy Booth 2011-6-26 193 Orange Peninsular Range; Santa Ana Mtns., Long Canyon Rd., NW of Hwy 74, Cleveland National Forest 965 Comment
  RSA0028963  Delphinium parryi subsp. parryi Thelma Shipe 1932-5-26 s.n. Orange Laguna Hills. PR8. Comment
  CAS-BOT-BC116421  Delphinium patens subsp. hepaticoideum C. B. Wolf 1931-3-6 1856 Orange 1/2 mile below Trabuco Camp Ground, Trabuco Canyon, west slope of the Santa Ana Mts. 609 Comment
  RSA221084  Delphinium patens subsp. hepaticoideum E. W. Lathrop 1966-3-23 6107 Orange 4 miles northeast of Lake Irvine, Black Star Canyon, Cleveland National Forest, Trabuco District. Comment
  RSA548863  Delphinium patens subsp. hepaticoideum Fred M. Roberts, Carol A. Roberts 1988-6-10 4095 Orange Santa Ana Mountains: Modjeska Peak, 0.9km SW summit. 1542 Comment
  UC484251  Delphinium patens subsp. hepaticoideum C. B. Wolf 1931-3-6 1856 Orange 1/2 mi below Trabuco Camp Grounds (w slope of mts); Santa Ana Mts., Trabuco Canyon 609 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
  RSA0014989  Dicentra chrysantha Fred M. Roberts 2008-5-20 6989 Orange Lomas de Santiago: Santiago Creek wash north of Hanging Man's Tree Road near confluence of Pancho Cyn., 1.6 km NW Bolero Lookout. Irvine Ranch Conservancy. 349 Comment
  RSA725576  Dicentra chrysantha Fred M. Roberts, Robert L. Allen, Trish Smith 2007-6-15 6538 Orange Upper Fremont Canyon, 5.2 km ENE Irvine Lake Spillway and 2.0 km WNW Hidden Ranch. 673 Comment
  RSA681019  Dichelostemma capitatum subsp. capitatum Fred M. Roberts, David E. Bramlet 2003-3-7 5567 Orange Donna O Neill Land Conservancy; West slopes of Christianitos Canyon, Middle Ridge Trail, 0.1km NW Gato Gate. 123 Comment
  RSA702763  Dichondra occidentalis Scott D. White, Michael Honer 2004-5-17 10389 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
  POM202523  Digitaria sanguinalis L. M. Booth 1932-6-7 1210 Orange Balboa Island. Comment
  RSA0019267  Dimorphotheca ecklonis Fred M. Roberts, Sandra Leatherman, Jennifer Pareti 2009-4-14 7149 Orange Dana Point Headlands: Dana Strand Beach and slopes above beach, 0.8 km WNW Marine Institute at Dana Point Harbor. CNLM Dana Point Preserve. 3 Comment
  RSA699271  Diosma ericoides Ruth Greenwald, Virginia Pritchard 1938-05 s.n. Orange Santa Ana. Comment
  UCR273943  Diospyros Mitch Provance 2007-7-11 707- 01 Orange Coastal Regions of Southern California, Between Irvine and Foothill Ranch, UCR South Coast Research and Extension Center 122 Comment
  SJSU1768  Diplacus aurantiacus G. B. Youngberg 1956-3-27 185 Orange Irvine Park c. 8 mi E of Orange 259 Comment
  CAS-BOT-BC151045  Diplacus brevipes F. W. Pennell; Carl Epling 1940-4-21 25148 Orange Route 74, 5 mi. E. of San Luis Capistrano 121 Comment
  CAS-BOT-BC152262  Diplacus clevelandii P. C. Everett 1936-8-28 8233 Orange Santa Ana Mts., Main Divide Motorway, head of Trabuco Canyon 1158 Comment
  RSA605374  Diplotaxis muralis A. C. Sanders 1990-10-6 10186 Orange Newport Bay, North Star County Beach area on the SW end of the bay, ca. 2 km inland of Hwy 1 1 Comment
  UCR91554  Diplotaxis muralis A. C. Sanders 1990-10-6 10186 Orange Newport Bay, North Star County Beach Area on the SW end of the Bay, c. 2 km inland of Hwy 1. 3 Comment
  CHSC30537  Distichlis spicata T. B. Devine 1980-4-4 657 Orange Huntington Beach, beside Edinger Ave. ca. 1.5 mi. W. of jct. with Bolsa Chica Rd. Roadside between Edinger Ave. and drainage canal just So. of Naval Weapons Station. Comment
  SBBG56832  Distichlis spicata M. N. Ackley -May-1929 Orange Sunset Beach 8 Comment
  SD28114  Distichlis spicata Carl B. Wolf 1932-7-2 3815 Orange Carbon Canyon, 1/8 mile below La Vida Springs 213 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
  UCSB47976  Dodecatheon clevelandii Roberts, Fred 1980-2-17 Orange Along Dana Strand Rd., on the blufff west of Dana Marina (north side of road), Dana Point 56 Comment
  SD27980  Draba cuneifolia Carl B. Wolf 1932-2-17 2661 Orange Rancho Santa Ana Botanic Garden, just west of Adenostoma sparsifolum Bed. 600 Comment
  IRVC20310  Draba cuneifolia var. integrifolia Fred M. Roberts, Karlin G. Marsh 1983-2-25 869 Orange Temple Hill; ridge above upper Rancho Laguna Cyn, 1.6km SSW Top of the World Sch., 2.0km NNE Goff Island. Southern Coastal 269 Comment
  RSA701654  Drymocallis glandulosa Keith E. Hoffmaster 1935-5-5 s.n. Orange San Juan Canyon., Santa Ana Mts. Comment
  RSA160425  Drymocallis glandulosa var. wrangelliana J. D. Olmsted 1959-4-30 509 Orange North of Hidden Ranch in Black Star Canyon; 100 yards NW of Rattlesnake Rock, 5 miles east of Irvine Lake 732 Comment
  CAS-BOT-BC70835  Dryopteris arguta Ira L. Wiggins 1966-2-4 20410 Orange Trabuco Canyon, about 1/2 mi. above end of open road Comment
  IRVC124  Dryopteris arguta A. S. Boughey, P. Pembrook 1965-6-15 1056 Orange Santa Ana Mountains; Saddleback Mtn., Cleveland National Forest. Peninsular Ranges Comment
  IRVC16264  Dryopteris arguta L. Fox 1978-5-9 s.n. Orange Upper Trabuco Canyon. Santa Ana Mountains Comment
  RSA311324  Dryopteris arguta R. F. Thorne 1963-7-26 32847 Orange Near Beek's Spring; Tin Mine Canyon; Trabuco District, Santa Ana Mountains, Cleveland National Forest. 716 Comment
Read comments
Apr 25 2011
  CAS-BOT-BC109566  Dudleya blochmaniae subsp. blochmaniae Reid Moran 1950-4-24 3388 Orange San Clemente, atop sea bluffs Comment
  CAS-BOT-BC427991  Dudleya caespitosa John Thomas Howell 1927-6-9 2472 Orange N. side of Santa Ana Canyon 152 Comment
  CAS-BOT-BC428263  Dudleya edulis Reid Moran 1949-5-28 3257 Orange Aliso Canyon, Laguna Beach Comment
  POM6592  Dudleya lanceolata P. A. Munz 1919-5-4 s.n. Orange Laguna canyon Comment
  RSA397796  Dudleya lanceolata Ella M. Kennedy 1923-5-14 s.n. Orange Laguna Beach. Comment
  RSA50298  Dudleya lanceolata E. K. Balls 1949-5-21 13470 Orange spontaneous in Rancho Santa Ana Botanic Garden (original site), hillside east of Cactus Garden, Santa Ana River Canyon. 198 Comment
  UC933289  Dudleya lanceolata Reid Moran 1948-6-23 3094 Orange s side Aliso Canyon; Laguna Beach Comment
  CAS-BOT-BC411402  Dudleya lanceolata Theodore W. Minthorn 1924-5-30 s.n. Orange Pt. San Juan Comment
  UC933285  Dudleya lanceolata Reid Moran 1950-5-12 3386 Orange Newport Bluffs Comment
  JEPS50031  Dudleya multicaulis Frank W. Peirson 3071 Orange Santa Ana Mountains Santa Ana Canyon; , Santa Ana Canyon 121 Comment
  RSA542640  Dudleya multicaulis Fred M. Roberts, Kathy Keane 1988-5-25 3994 Orange Rancho Mission Veijo: Lower Canada Chiquita, 2.0km SSE Medium Rancho Survey Marker. 91 Comment
  RSA587888  Dudleya multicaulis Fred M. Roberts 1990-5-7 4611 Orange Rancho Mission Viejo: Ridge S of Blind Canyon and E of Christianitos Canyon, TRW Lease Holding, 5.0 kilometers NE Clemente Survey Marker. 152 Comment
  RSA751169  Dudleya multicaulis D. E. Bramlet 2008-5-20 4280 Orange N Loma Ridge, 305m west of Hwy 241, 976m south of Santiago Cyn Rd. & 61m N of the access road. 355 Comment
  UCR215300  Dudleya multicaulis Fred M. Roberts 2008-4-23 6925 Orange Lomas de Santiago, Loma Ridge, north end along Sheriff Rd., 1.6 km SE of Peters Canyon Reservoir dam 340 Comment
  UCR22358  Dudleya multicaulis P. Clark 1979-1 s.n. Orange Santa Ana Canyon, 50 yards west of the old Santa Ana Canyon Road, and 2 mi. south of the Riverside County line. Comment
  UCSB50638  Dudleya pulverulenta Roberts, Fred 1982-7-8 Orange Niguel Hills; Niguel Hill, above Pacific Island Road, 1.4 km. ESE Aliso Peak; 2.6 km. SSW Alicia Fire Station 205 Comment
  CAS-BOT-BC109741  Dudleya stolonifera R. V. Moran 1949-7-2 3286 Orange Laguna Canyon. 1.7 mile below Toro Road Junction, 1.5 mile above canyon mouth. 243 Comment
  IRVC25030  Dudleya stolonifera Fred M. Roberts 1984-4-29 1360 Orange Temple Hill above Laguna Canyon, 6.5km SE Signal Peak; 0.6km E Bench Mark 104, Laguna Beach 195 Comment
  LA202504  Dudleya stolonifera Reid Moran; 1949-7-2 3287 Orange near mouth of Aliso Canyon, S of Laguna Beach Comment
  POM48549  Dudleya stolonifera F. M. Reed 1925-5-14 4994 Orange Aliso Canon. Comment
  RSA534167  Dudleya stolonifera Reid V. Moran 1977-6-13 24230 Orange Willow Canyon, tributary of Laguna Canyon. 125 Comment
  UC1015150  Dudleya stolonifera Reid Moran 1950-5-24 3411 Orange 1.5 mi above canyon mouth (1.7 mi below Toro Rd junction); Laguna Canyon 243 Comment
  UCR67711  Dudleya stolonifera Reid Moran 1977-6-13 24230 Orange Willow Canyon, tributary of Laguna Canyon. 125 Comment
  UCSB48031  Dudleya viscida Roberts, Fred 1980-7-7 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
  RSA731754  Echinochloa colona Fred M. Roberts 2007-11-9 6651 Orange San Juan Canyon along San Juan Creek, about 0.6 km E San Diego FWY. 24 Comment
  RSA731947  Echinochloa colona Fred M. Roberts, Sandy Leatherman 2007-11-27 6688 Orange Yorba Linda: drainage channel on east side of Amberdale Dr. ca. 0.3 km S Fairmont Blvd. 118 Comment
  RSA696377  Echinochloa colona Keith E. Hoffmaster 1932-8-26 s.n. Orange Santa Ana. Comment
  CAS-BOT-BC197173  Echinochloa crus-galli Ira L. Wiggins 1965-9-26 20262 Orange To south across street from Letters and Science building, California State College at Fullerton Comment
  RSA21041  Echinochloa crus-galli E. R. Johnson 1938-8-22 9451 Orange Rancho Santa Ana, Santa Ana Canyon; South of Picnic Grounds 122 Comment
  RSA452553  Echinochloa crus-galli Fred M. Roberts 1987-8-19 3586 Orange Santa Ana River: adjacent to Fountain Valley, Harbor Bridge. 13 Comment
  UC729935  Echinochloa crus-galli Carl B. Wolf 1932-6-13 3720 Orange Fullerton; Malvern and Nicholas Avenues 53 Comment
  UCD60916  Echinochloa crus-galli Ira L. Wiggins 1965-9-26 20261 Orange Roadside at west end of Orangethorpe Estates subdivision, near Atwood. Comment
  POM48523  Echinodorus berteroi F. M. Reed 1924-8-15 4963 Orange Laguna Lake bed - Laguna canyon. Comment
  RSA443824  Echinodorus berteroi Gordon Marsh 1975-7-28 s.n. Orange Huntington Beach: East Garden Grove-Wintersburg Flood Control Channel, just N of Warner St. bridge crossing, (No. C05) Comment
  RSA532554  Echinodorus berteroi David E. Bramlet 1990-10-17 2063 -1 Orange Newport Beach: Delhi Channel at the intersection of Irvine Ave. and Mesa Drive just west of Newport Beach Golf Course. 6 Comment
  RSA648653  Echinodorus berteroi R. E. Riefner 2000-8-21 20 -728 Orange Irvine Lake. First cove SE of Dam. USGS 7.5' Quad: Black Star Canyon. 237 Comment
  UCR19807  Echinodorus berteroi F. M. Reed 1924-8-15 4963 Orange South Coast, Laguna Lake Beds, Laguna Canyon Comment
  UCSB57135  Echinodorus berteroi Marsh, G. 1975-7-28 Orange Huntington Beach; east Garden Grove-Wintersburg Flood Control Channel (No.C05); just N of Warner St. bridge crossing Comment
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Aug 18 2011
  UCSB47620  Ehrendorferia chrysantha Roberts, Fred 1980-5-3 Orange Santa Ana Mtns., San Juan Canyon, Rte. 74, 0.2km S Lower San Juan Picnic Ground 393 Comment
  RSA751986  Ehrharta erecta Fred M. Roberts, Eliza Maher 2008-3-26 6798 Orange Dana Point: Dana Point Headlands, CNLM Preserve, near Strands Road Gate, 0.8km WNW Marine Institute, Dana Point Harbor. 71 Comment
  UCR266405  Ehrharta erecta D. E. Bramlet 2010-3-3 s.n. Orange 1691 Mesa Dr., Newport Beach 16 Comment
  POM50482  Eleocharis montevidensis var. montevidensis Helen D. Geis 1902-1 507 Orange Santa Ana. Comment
  RSA82  Eleocharis montevidensis var. montevidensis J. T. Howell 1927-7-6 279 Orange Santa Ana River bottom, Rancho Santa Ana 152 Comment
  POM1361  Eleocharis palustris Phillip A. Munz 1918-5-4 2210 Orange Laguna Beach. Comment
  POM202156  Eleocharis palustris L. M. Booth 1932-5-15 1202 Orange Costa Mesa. Comment
  SD136984  Eleocharis radicans Steve Boyd, Tim Ross 1994-9-14 8354 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area of the Cleveland National Forest, Lucas Canyon just downstream of Lucas Canyon Trail crossing. (IPB 10/07) 305 Comment
  JEPS48807  Eleocharis rostellata Lawrence M. Booth 1932-6-4 1151 Orange Newport Bay Comment
  POM202592  Elymus X gouldii L. M. Booth 1932-5-24 1090 Orange Newport Lagoon. Comment
  UCR193344  Elymus condensatus A. C. Sanders 2008-5-28 35433 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Bee Flat at mouth of Limestone Canyon 264 Comment
  UCR281490  Elymus condensatus Mitch Provance 2017-6-9 617- 100 Orange Coyote Hills, North Fullerton, East side of Gilbert St., 0.5 miles ENE of intersection with Castlewood Dr. 124 Comment
  UC537289  Elymus glaucus Lawrence M. Booth 1932-6-7 1156 Orange Newport Lagoon; Sidehill Comment
  CAS-BOT-BC206765  Elymus glaucus subsp. glaucus Le Roy Abrams 1901-6-1 1822 Orange Santiago Pk. Comment
  CAS-BOT-BC206790  Elymus glaucus subsp. glaucus Le Roy Abrams 1901-6-1 1831 Orange Mt. Santiago Trail 914 Comment
  UCR150908  Elymus glaucus subsp. glaucus Valerie Soza, LeRoy Gross 1999-6-10 526 Orange Santa Ana Mountains, Southwestern extension of Modjeska Peak, off dirt road to summit, off Main Divide Road 1555 Comment
  RSA539340  Elymus multisetus Fred M. Roberts, Carol A. Roberts 1988-6-9 4078 Orange Santa Ana Mountains: Modjeska Peak, 0.9km SW summit., 3730500mN, 449000mE 1542 Comment
  UCR2375  Elymus triticoides F. M. Reed 1932-5-24 7234 Orange South Coast, San Juan Capistrano, behind beach dune Comment
  CAS-BOT-BC412640  Emex spinosa unspecified 1933-4-21 s.n. Orange Lemon Grove Comment
  POM122763  Encelia californica Marcus E. Jones 1924-8-26 s.n. Orange Newport. Comment
  POM48553  Encelia californica F. M. Reed 1925-5-14 4985 Orange Aliso Canon. Comment
  RSA695627  Encelia californica Keith E. Hoffmaster 1927-4-5 s.n. Orange Near Newport, Santa Ana Mountains Comment
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Aug 27 2011
  UCR267184  Encelia californica Fred M. Roberts 2010-3-12 7177 Orange Southeast Coast, DANA POINT HEADLANDS: Harbor Point Park, South of Green Lantern and west of Dana Point Harbor, c. 150 meters SE Interpretive Center 50 Comment
  LA205846  Encelia farinosa A. M. Johnson; 1932-4-23 4031 Orange N of Orange Comment
  IRVC1246  Ephedra californica J. Morgan 1965-4-3 s.n. Orange San Joaquin Hills, Laguna Canyon. Southern Coastal Comment
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Jan 9 2018
  RSA650630  Epilobium adenocaulon var. parishii Daniel Truong 1991-5-13 33 Orange Irvine Regional Park, left field adjacent to main entrance, within 1/4 mile radius of 'closed area' Comment
  POM200869  Epilobium canum subsp. canum Carl B. Wolf 1933-8-24 5384 Orange Santa Ana Mountains; Along road S of Bedford Peak on way to Santiago Peak. 1067 Comment
  CDA20830  Epilobium ciliatum subsp. ciliatum P. Akers 2006-3-25 PA 4 -06 Orange Peninsular Ranges; Yorba Linda. Santa Ana River, south of La Palma Dr, 0.6-0.9 mi E of Yorba Linda Dr. 121 Comment
  POM187674  Epilobium ciliatum subsp. ciliatum Joseph A. Ewan 1929-6-28 3615 Orange Santiago canyon, Santa Ana Mountains. 366 Comment
  RSA731008  Epilobium ciliatum subsp. ciliatum Fred M. Roberts 2006-11-15 6471 Orange Santa Ana Cyn., Santa Ana River, north bank, 1.1 km ENE Imperial Hwy crossing. 85 Comment
  RSA731933  Epilobium ciliatum subsp. watsonii Fred M. Roberts, Sandy Leatherman 2007-11-27 6677 Orange Yorba Linda: drainage channel on east side of Amberdale Dr. ca. 0.3 km S Fairmont Blvd. 118 Comment
  IRVC28640  Epipactis gigantea Mark A. Elvin, A. C. Sanders 2005-9-2 4495 Orange Mouth of Lion Cyn, just up stream from Lower San Juan Campground. Santa Ana Mtns 457 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
  RSA734342  Eragrostis barrelieri A. C. Sanders, Linda Farley, Fred M. Roberts, David E. Bramlet 2008-4-1 34633 Orange Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 366 Comment
  CAS-BOT-BC204438  Eragrostis cilianensis Helen D. Geis 1902-1-1 549 Orange Unspecified Comment
  CAS-BOT-BC204439  Eragrostis cilianensis Helen D. Geis 1902-1-1 549 Orange Santa Ana Comment
  JEPS68587  Eragrostis mexicana subsp. virescens Lawrence M. Booth 1932-7-18 1261 Orange Newport Bay Balboa Island; , Balboa Island Comment
  RSA697579  Eremocarpus setiger J. Vlahos 1933-1 s.n. Orange Blackstar Canyon. Comment
  UC908507  Eriastrum sapphirinum John Thomas Howell 1927-6-9 2471 Orange Santa Ana Canyon Rancho Santa Ana 213 Comment
  UCR241914  Eriastrum sapphirinum Fred M. Roberts 2012-5-10 7564 Orange Peninsular Ranges; Coastal Foothills, San Joaquin Hills, south fork of Buck Gully, north slope Pelican Hill, 0.6 km N summit Pelican Hill, north of Pelican Hill Drive 183 Comment
  RSA0121308  Eriastrum sapphirinum subsp. dasyanthum Anstruther Davidson 1920-06 s.n. Orange Laguna. Comment
  RSA0121311  Eriastrum sapphirinum subsp. dasyanthum L. R. Abrams 1901-06 1791 Orange Trabuco Canyon Comment
  RSA0122938  Eriastrum sapphirinum subsp. dasyanthum E. W. Lathrop 1974-6-27 7419 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  UCSB52426  Ericameria arborescens Roberts, Fred 1982-9-20 Orange Santa Ana Mtns.; San Juan Trail; 1.1 km SE Blue Jay Campground; 2.5 km SSE Los Pinos Peak 997 Comment
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Jan 25 2020
  UCR203875  Ericameria cuneata var. cuneata R. E. Riefner Jr. 2007-6-29 07- 285 Orange Santa Ana Mountains, Irvine Ranch Reserve, Fremont Canyon Conservation Easement, east fork of Fremont Canyon, Black Star SCE Road 613 Comment
  SD95145  Ericameria pachylepis Jack Reveal 1973-12-4 Orange On ridge between east and west forks of Ladd Canyon; 1.75 miles northeast of Mustang Spring. 650 Comment
  JEPS19141  Ericameria palmeri var. pachylepis L. M. Booth 1933-10-18 Orange Newport Comment
  CAS-BOT-BC131636  Ericameria parishii var. parishii James R. Shevock 1976-10-28 5351 Orange Along the north slope of Pleasants Peak off of FS road 3S04, Santa Ana Mts., Cleveland National Forest 1219 Comment
  UC1118814  Ericameria pinifolia H. E. Norton 1931-2-26 31 Orange San Joaquin Hills Corona Quad., San Joaquin Hills 121 Comment
  UCSB48195  Erigeron foliosus Roberts, Fred 1981-6-26 Orange Santa Ana Mtns.; Viejo Cyn., 0.5km N Calif. Rte. 74; 2.7km ENE San Juan Guard Station 317 Comment
  UCR215284  Erigeron foliosus var. foliosus Fred M. Roberts 2008-5-14 6964 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
  RSA0061173  Erigeron foliosus var. foliosus Robt. Allen 2007-8-11 s.n. Orange Santa Ana Mountains region: Northwest-facing flank of Santiago Peak, along North Main Divide Road. 1675 Comment
  UCR247454  Erigeron karvinskianus R. E. Riefner Jr. 2013-1-16 13- 15 Orange South Coast, city of Newport Beach, vicinity of Poppy Ave. and Ocean Blvd., coastal bluff at Little Corona Beach 6 Comment
  RSA0041967  Eriodictyon crassifolium Paul Shirokawa 1998-5-7 23 Orange Cleveland National Forest: Trabuco Ranger District, 3.1 miles from Ortega Highway (State Highway 74) on Main Divide Road. 990 Comment
  IRVC27014  Eriogonum cinereum Peter A. Bowler 2003-4-20 s.n. Orange UCI Arboretum Southern Coastal 15 Comment
  RSA749687  Eriogonum elongatum A. C. Sanders, Fred M. Roberts 2008-7-16 35829 Orange Lomas de Santiago, along road in lower Limestone Canyon, near junction with Harding Truck Trail 290 Comment
  UCR231355  Eriogonum elongatum A. C. Sanders, Kent Beaman 2011-9-27 39907 Orange Peninsular Range; Santa Ana Mtns., Maple Springs Truck Trail above Silverado, at major (dry) stream crossing, 3.95 km NNW (347 deg. ) of Santiago Peak 903 Comment
  UCR45132  Eriogonum elongatum B. G. Pitzer, L. F. LaPre 1986-10-20 s.n. Orange Santa Ana Mtns, Summit of Hicks Canyon on a private road (continuation of Jeffrey Road), c. 2.4 mi. above the gun club 274 Comment
  RSA3099  Eriogonum fasciculatum Carl B. Wolf 1931-8-9 2300 Orange 1/2 mile south of Corona del Mar beach 8 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
  UC635079  Eriogonum fasciculatum var. fasciculatum Herbert L. Mason 1926-4-25 2917 Orange 5 mi s Laguna Comment
  HSC17271  Eriogonum fasciculatum var. foliolosum C. L. Hitchcock, C. V. Muhlick 1964-3-17 23062 Orange 8 mi. E of Yorba Linda, Santa Ana Canyon. Comment
  UC1292577  Eriogonum fasciculatum var. foliolosum C. L. Hitchcock, C. V. Muhlick 1964-3-17 23062 Orange 8 mi e Yorba Linda; Santa Ana Canyon Comment
  CLARK-A1528-3648  Eriogonum giganteum John C. Roos, Lucille Roos 1950-9-25 4992 Orange Santa Ana Canyon Comment
  UCR274309  Eriogonum gracile Dick Newell, Don Millar 2016-7-19 431 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Limestone Canyon Rd., 1/2 mile SE of junction with Dripping Springs Trail 344 Comment
  RSA230  Eriogonum gracile var. gracile J. T. Howell 1927-7-24 471 Orange Claymine Canyon near Sierra Peak. 183 Comment
  CAS-BOT-BC269831  Eriogonum nudum var. pubiflorum Carl B. Wolf 1933-8-24 5400 Orange Santa Ana Mts. Summit of Santiago Pk. 1731 Comment
  UCSB52923  Eriogonum parvifolium Roberts, Fred 1983-3-10 Orange Dana Point Headlands: south of Dana Strand Rd; 0.8km W Dana Point Harbor; 1.0km SW Richard Henry Dana School 66 Comment
  UCR227634  Eriogonum saxatile Robt. L. Allen 2003-6-22 12372 Orange Santa Ana Mountains, Modjeska Peak, southwestern arm, 0.6 air mi southwest of the summit 1512 Comment
  RSA761926  Eriogonum saxatile Robt. Allen 2003-6-22 12371 Orange Modjeska Peak, southwestern arm, 0.6 air miles southwest of the summit. 1513 Comment
  UC1618033  Eriogonum thurberi Donald G. Nelson 1935-6-2 365 Orange n. Brea (mouth of Brea Canyon, on Tonner lease); Brea Canyon, Tonner lease Comment
  POM202177  Eriophyllum confertiflorum L. M. Booth 1932-5-12 1042 Orange Newport Bay. Comment
  POM357957  Eriophyllum confertiflorum F. R. Fosberg 1931-6-21 5138 Orange Silverado Canyon. Santa Anita Mts. Comment
  RSA131652  Eriophyllum confertiflorum E. K. Balls 1958-6-27 23286 Orange Mojeska Saddle, Santa Ana Mts 1463 Comment
  RSA16348  Eriophyllum confertiflorum Percy C. Everett 1935-6-18 7185 Orange Santa Ana Mountains. Main divide motorway to Santiago Peak, 1 mile from Ortega Highway. 732 Comment
  RSA5331  Eriophyllum confertiflorum B. D. Stark 1933-1-3 4483 Orange Rancho Santa Ana near pear orchard. 122 Comment
  RSA695678  Eriophyllum confertiflorum Minor Warne 1934-3-21 s.n Orange Limestone Canyon. Santa Ana Mts. Comment
  SBBG87346  Eriophyllum confertiflorum var. confertiflorum B. Pitzer 1987-4-24 504 Orange Santa Ana River at Gypsum Cyn, ca. 0.5 mi N of St Hwy 91 112 Comment
  RSA678510  Erodium botrys Valerie L. Soza, Kevin B. Clark, LeRoy Gross, Will Miller, Fred M. Roberts, Gary D. Wallace 2001-4-4 1127 Orange Seal Beach U. S. Naval Weapons Station, southwestern edge of Seal Beach National Wildlife Refuge. 3 Comment
  RSA391773  Erodium botrys E. R. Johnson 1935-3-1 6293 Orange 1 miles west of Atwood, south side of Railroad. 91 Comment
  UCSB52457  Erodium botrys Fritzke, Sue; Roberts, Fred 1982-4-3 Orange Dana Point; hills; 1.0km N Dana Hills High School; 1.9km W Marco Forster Junior High School 30 Comment
  RSA703721  Erodium brachycarpum D. E. Bramlet 2003-3-20 3351 Orange Donna O Neill Reserve. NE corner of the reserve 183m west of Cristianitos Rd. and 1.83 km north of the E-W access road. 127 Comment
  SEINET12182146  Erodium cicutarium J. F. Bright, Wyman, C. 1933-1 8180 Orange Laguna Beach Comment
  UCR193823  Erodium moschatum A. C. Sanders, Fred M. Roberts 2008-7-16 35868 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Creek wash at and above the confluence of Hangmans Tree Canyon 370 Comment
  SEINET7073414  Eschscholzia californica A. G. Vestal 1963-4-24 s.n. Orange La Paz Canyon, Rancho Mission Viejo. Coordinate datum: NAD27. Comment
  RSA66266  Eschscholzia californica var. peninsularis F. W. Peirson 1923-3-25 3375 Orange Aliso Creek, near Laguna Beach 91 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
  UCR241043  Eucalyptus polyanthemos Robert DeRuff 2010-1 288 Orange South Coast, Upper Newport Bay, above Back Bay Dr. at Eastbluff North 17 Comment
  RSA753034  Eucalyptus sideroxylon A. C. Sanders, Fred M. Roberts 2008-9-18 36077 Orange Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge. 320 Comment
  UCR50904  Eucalyptus tereticornis Dave Goodward 1987-4-16 4 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
  UCR50912  Eucalyptus tereticornis Dave Goodward 1987-4-16 6 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
  RSA3173  Eucrypta chrysanthemifolia Carl B. Wolf 1932-3-8 2690 Orange 1/2 mile N of Corona del Mar, Newport Bay. 8 Comment
  RSA749485  Eucrypta chrysanthemifolia Fred M. Roberts 2008-3-25 6793 Orange Loma Ridge: Upper Hicks Cyn. near Haul Road, c.a. 4.4 km by road from Portola Pkwy. and 3.2 km ENE Rattlesnake Cyn. Reservoir. 269 Comment
  UCR190979  Eucrypta chrysanthemifolia A. C. Sanders, Fred M. Roberts 2008-4-22 34995 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
  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
  RSA708445  Euphorbia albomarginata Mark Elvin 2004-5-2 3248 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
  CLARK-A1528-2702  Euphorbia misera John C. Roos 1937-9-1 2548 Orange South Laguna Comment
  RSA0029993  Euphorbia misera R. E. Riefner Jr. 2013-1-16 13 -16 Orange City of Newport Beach, vicinity of Poppy Ave. and Ocean Blvd., coastal bluff at Little Corona Beach. 3 Comment
  RSA311745  Euphorbia misera G. L. Webster 1966-12-11 4779 Orange S- facing slopes at top of bluffs, Dana Point Comment
  RSA731531  Euphorbia misera R. E. Riefner 2008-3-24 08 -62 Orange City of Dana Point, Dana Point Harbor, along Dana Point Harbor Dr. at Island Way. 12 Comment
  IRVC1308  Euphorbia peplus E. P. Cowper 1965-3-1 Orange [Newport] Back Bay. Newport Beach Comment
  IRVC9192  Euphorbia peplus B. Gittins 1963-3-22 63 Orange Orange Coast College Campus. Costa Mesa Comment
  RSA734741  Euphorbia peplus L. C. Wheeler 1946-3-6 6173 Orange Newport Bay. Mainland north of east end of Balboa Island. 3 Comment
  RSA797403  Euphorbia peplus Keith E. Hoffmaster 1928-5-3 s.n. Orange Santa Ana. Comment
  UCD142717  Euphorbia polycarpa C. L. Hitchcock 1966-3-15 24140 Orange Stearns Lease, 1.5 miles east of Brea. Comment
  UCR191355  Euphorbia polycarpa A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34642 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 330 Comment
  UCR239646  Euphorbia polycarpa var. polycarpa Fred M. Roberts 2012-5-9 7553 Orange Santa Ana Mountains, Lake Forest, near Serrano Creek utility road, 0.3 m south-southwest of intersection of Commercentre and Dimension Drives 206 Comment
  RSA0104828  Euphorbia polycarpa var. polycarpa A. S. Boughey 1968-4-23 211 Orange Santa Ana Mountains: Black Star Canyon; 1/2 mi. below Hidden Ranch. Comment
  RSA0104831  Euphorbia polycarpa var. polycarpa C. Thompson 1965-2-20 s.n. Orange Cameo Shores, Corona Del Mar. Comment
  IRVC17085  Euphorbia serpyllifolia var. hirtula A. B. McGee 1980-9-9 Orange San Diego Creek Channel, adjacent to San Joaquin Freshwater Marsh. Irvine Comment
  RSA70544  Euphorbia spathulata F. W. Peirson 1922-5-18 3060 Orange Santa Ana River. 122 Comment
  RSA942  Euthamia occidentalis J. T. Howell 1927-10-22 765 Orange Santa Ana River bottom, Rancho Santa Ana 152 Comment
  UCR194561  Festuca A. C. Sanders 2008-4-29 35133 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
  RSA731318  Festuca californica Fred M. Roberts, Robt. Allen, Chris M. Barnhill, Nancy Hatfield 2005-5-30 6230 Orange west slope of Modjeska Peak, Harding Canyon watershed, Main Divide Road, 0.46 km W summit. West-facing slope in loose rocky tallus, full sun, and chaparral borders. 1670 Comment
  SBBG101678  Festuca microstachys var. pauciflora S. Boyd with Mistretta 1991-5-9 6193 Orange Oak Flat, SE of Sierra Pk, just W of Riverside County line 792 Comment
  UCR191422  Festuca myuros A. C. Sanders, Fred M. Roberts 2008-4-8 34772 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, SSE of Santiago Reservoir on Harding Truck Trail at Dripping Springs Loop, above Limestone Canyon 495 Comment
  IRVC29790  Ficus carica Mark A. Elvin, Dean Kelch 2006-12-9 5315 Orange Irvine; San Diego Creek, edge of San Joaquin Marsh, beside University Dr., between Campus Dr. and Hwy 73. Southern Coastal 3 Comment
  CAS-BOT-BC487556  Ficus microcarpa R. E. Riefner, Jr. 2014-2-24 14 -66 Orange City of Dana Point, W ca 0.1 mi from Island Way along Dana Point Harbor Dr., cliff immediately S of Santa Clara Ave. and Amber Lantern St. 11 Comment
  CAS-BOT-BC502073  Ficus microcarpa R. E. Riefner, Jr. 2015-8-27 15 -366 Orange City of Newport Beach, Corona del Mar, long Marguerite Ave., near Seaview Ave. 30 Comment
  RSA0088636  Ficus microcarpa R. E. Riefner Jr. 2014-8-8 14 -273 Orange City of Laguna Beach, E side of South Coast Highway near Diamond St. 25 Comment
  UC2046883  Ficus microcarpa R. E. Riefner Jr. 2014-7-13 14 -222 Orange City of Irvine, S side of Red Hill Ave. bridge E of 405 Freeway north-bound lane. Comment
  RSA852  Filago californica J. T. Howell 1928-4-7 901 Orange Santa Ana River bottom, Rancho Santa Ana 152 Comment
  UCR106279  Filago gallica B. G. Pitzer, M. Georgiady 1997-4-5 3087 Orange San Joaquin Hills, Crystal Cove State Park, portion across highway on the beach, bluffs immediately above beach and adjacent terraces for southeast end of park. 24 Comment
  IRVC28774  Foeniculum vulgare Alyssa J. Lai 2006-2-4 1 Orange San Joaquin Marsh; NW Edge of Marsh Southern Coastal 3 Comment
  CAS-BOT-BC63069  Frangula californica subsp. californica P. C. Everett 1936-9-19 8268 Orange Santa Ana Mts., Silverado Canyon. In vicinity of Forest Service Road gate. 762 Comment
  SBBG92712  Frangula californica subsp. californica R. Moran 1975-7-18 22598 Orange near Yaeger Mine, upper Trabuco Cyn 725 Comment
  RSA0058059  Frangula californica subsp. californica Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49673 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. 457 Comment
  RSA30666  Frankenia grandifolia Louis C. Wheeler 1932-6-22 844 Orange Newport Bay. 1 Comment
  RSA391401  Frankenia grandifolia Joseph A. Ewan 1932-7-28 7701 Orange Corona Del Mar Comment
  RSA5859  Frankenia grandifolia Carl B. Wolf 1932-6-28 3784 Orange Edge of field on Bryant Ave. 9 Comment
  IRVC1370  Frankenia salina A. S. Boughey, Pat Pembrook 1965-6-8 1020 Orange San Juaquin Hills; Los Trancos Cyn; fork at road bottom. Southern Coastal Comment
  IRVC21007  Frankenia salina J. B. Anderson 1966-4-12 566 Orange Newport Beach; Backbay, by mud flats above Newport Dunes State Aquatic Park, boat launch platform. Southern Coastal Comment
  RSA539403  Frankenia salina Fred M. Roberts Jr., Karen Swirsky 1988-6-28 4106 Orange Costa Mesa; Fairview Park, Just west of end of Canyon Drive, 0.1 km W Canyon School. 24 Comment
  SD82963  Frankenia salina C. Davidson 1970-7-25 1494 Orange Bolsa Chica; Signal oil field. Comment
  UC1543183  Frankenia salina Donald G. Nelson 1935-6-27 331 Orange beaches s Corona del Mar (on bluffs facing ocean, near edge of salt marsh in ravine, s of mouth of Newport Bay) Comment
  CAS-BOT-BC402193  Fraxinus dipetala R. F. Thorne; C. W. Tilforth; E. W. Lathrop 1977-4-27 49687 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  RSA113855  Fraxinus dipetala E. K. Balls 1956-3-26 21464 Orange 0.5 miles below Silverado Motorway, W slope of Santa Ana Mts. 640 Comment
  SFV17927  Fraxinus dipetala J. N. Hogue 1999-4-9 136 .1 Orange Santa Ana Mountains Silverado Canyon. Above Pine Canyon along Maple Springs Road. 700 Comment
  UC2042136  Fraxinus dipetala R. F. Thorne and C. W. Tilforth, E. W. Lathrop 1977-4-27 49687 Orange Northern Santa Ana Mountains: Sierra Peak. [locality information from field label; note on newspaper 'N slope Pleasant's Pk, 1.5 mi S Beek's Place] 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
  CDA9402  Fraxinus uhdei D. G. Kelch 2006-12-9 6 .535 Orange Along Newport Back Bay Dr. in side canyon. Comment
  RSA725530  Fraxinus uhdei Fred M. Roberts 2007-9-11 6574 Orange Aliso Viejo: tributary to Aliso Creek on west side of Moulton Pkwy., 0.2 km N Aliso Viejo Pkwy., adj. to Kinder Care Learning Center. 83 Comment
  RSA773508  Fritillaria biflora Fred M. Roberts 1999-4-26 5202 Orange Lomas de Santiago: ridge between Santiago Creek wash and Limestone Canyon, 3.8 km W Bee Peak and 1.7 km SSE Silverado School 409 Comment
  SEINET10492274  Fuchsia hybrida Charlene A. Bennett 1976-7-23 Bennett 452 Orange Cultivated plants collected in the pacific palisades estates of the laguna hills area. 152 Comment
  UCR99855  Fumaria parviflora Scott D. White 1993-3-5 1119 Orange Tustin. Marine Air Corps Air Station: SE of Red Hill Ave and NE of Barranca 15 Comment
  UCR220964  Funastrum cynanchoides var. hartwegii Dick Newell, Don Millar 2010-6-22 26 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Agua Chinon wash 1/2 mile north of Hwy 241 toll road 267 Comment
  UCR192724  Galinsoga parviflora A. C. Sanders, Fred M. Roberts 2008-5-6 35226 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hicks Canyon, just above tollway (Hwy 241) crossing on Irvine Haul Rd., near debris basin 216 Comment
  RSA0013915  Galium angustifolium Fred M. Roberts 2012-5-10 7579 Orange San Joaquin Hills: Buck Gully, south tributary, north slope Pelican Hill, just north of Pelican Hills Drive, 0.7 km N Pelican Hill summit. 154 Comment
  UCR97812  Galium angustifolium Scott D. White 1997-3-28 4850 Orange Santa Ana Mountains, Above Modjeska Canyon, proposed water tank site. 488 Comment
  JEPS56089  Galium angustifolium subsp. angustifolium Lauramay T. Dempster and G. L. Stebbins 1967-3-21 4352 Orange canyon on road to Modjeska's Home 1 mi nw Cook's Corner Comment
  POM367702  Galium angustifolium subsp. angustifolium M. B. Dunkle 1934-6-18 3965 Orange Upper San Juan Canyon. 610 Comment
  RSA5926  Galium angustifolium subsp. angustifolium Carl B. Wolf 1932-7-2 3827 Orange Carbon Canyon, 1/8 mile below La Vida Springs 213 Comment
  RSA67768  Galium angustifolium subsp. angustifolium G. R. Campbell 1951-5-30 16095 Orange San Juan Canyon, Ortega Hwy, 4 mi. inside west border of Cleveland National Forest 152 Comment
  UC729870  Galium angustifolium subsp. angustifolium Carl B. Wolf 1932-7-2 3827 Orange 1/8 mi below La Vida Springs; Carbon Canyon 213 Comment
  UCR242701  Galium angustifolium subsp. angustifolium Fred M. Roberts 2012-5-10 7579 Orange SAN JOAQUIN HILLS: Buck Gully, south tributary, north slope Pelican Hill, just north of Pelican Hills Drive, 0.7 km N Pelican Hill summit 154 Comment
  RSA542397  Galium angustifolium subsp. angustifolium Fred M. Roberts, Dar A. Roberts 1989-3-22 4218 Orange Aliso-Wood Regional Park: Lower Wood Canyon, 3.6km SSE Moulton Peak. 38 Comment
  RSA588726  Galium aparine Fred M. Roberts Jr. 1990-5-7 4604 Orange Rancho Mission Viejo: Ridge south of Blind Canyon and east of Christianitos Canyon, TRW Lease Hold, 5.0 km NE Clemente Survey Marker. 152 Comment
  VVC895  Galium aparine B. G. Pitzer 1997-3-25 3014 Orange San Joaquin Hills, Crystal Cove State Park, Pelican Point Area, grassland between Pacific Coast Hwy & the bike trail. 30 Comment
  RSA587868  Galium nuttallii Fred M. Roberts Jr., Carol A. Roberts 1990-5-16 4632 Orange Small canyon along southeast side of Irvine Mesa, 3.5 km N Bolero Lookout. 396 Comment
  RSA732225  Galium parisiense A. C. Sanders, Fred M. Roberts 2008-4-22 35027 Orange Santa Ana Mtns.: Lomas de Santiago, Limestone Canyon, c. 2 miles SW of Silverado. 1200 Comment
  UC1608263  Galium parisiense Steve Boyd and Tim Ross 1992-5-19 7428 Orange along Lucas Canyon Trail from access road to Rancho Carillo (7SO6) n to Aliso Canyon (w edge of wilderness); Southern Santa Ana Mountains, San Mateo Canyon Wilderness Ar 365 Comment
  UCR191347  Galium porrigens A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34632 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 290 Comment
  RSA124724  Garrya flavescens E. K. Balls, P. C. Everett 1957-11-25 22847 Orange 1.1 mile E of Silverado 884 Comment
  UC1080593  Garrya flavescens E. K. Balls and P. C. Everett 1957-11-25 22847 Orange 1.1 mi e Silverado 883 Comment
  RSA171101  Garrya flavescens var. pallida Robert F. Thorne 1963-7-26 32831 Orange Santa Ana Mts., Cleveland National Forest, Trabugo District. 1189 Comment
  RSA608241  Garrya flavescens var. pallida Steve Boyd, Bart O'Brien 1998-1-13 10075 Orange Santa Ana Mountains: north end of the range, head of Tin Mine Canyon along Main Divide Road (3S04) ca. 1.8 mi south of Oak Flat. 884 Comment
  UCSB56674  Garrya fremontii Roberts, Fred 1984-2-12 Orange Santa Ana mts; 0.lkm SW Falcon Group Camp; 2.0km ESE Los Pinos Peak 304 Comment
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Apr 27 2020
  UC284723  Gastridium ventricosum P. A. Munz 1923-9-7 7758 Orange trail from Trabuco Canyon to Santiago Peak (Santa Ana Mts.); , trail from Trabuco Canyon to Santiago Peak 1127 Comment
  RSA5510  Gaura coccinea Carl B. Wolf 1932-7-2 3809 Orange 1.5 miles east of Brea on Cedar St. 107 Comment
  RSA581434  Gaura odorata Fred M. Roberts 1989-5-21 4375 Orange Lomas de Santiago: just east of Santiago Canyon Road, ca. 1.8km WSW Santiago Reservoir spillway. 248 Comment
  UCR217671  Gazania linearis Fred M. Roberts 2008-5-30 7014 Orange South Coast, Lomas de Santiago, Santiago Creek wash, 0.6 km south southeast of Silverado School, Irvine Ranch Conservancy 314 Comment
  RSA797025  Geranium incanum var. multifidum R. E. Riefner Jr. 2012-6-16 12 -404 Orange City of Dana Point, Dana Point Harbor Drive at Island Way. 11 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
  RSA732081  Gilia angelensis A. C. Sanders, Fred M. Roberts 2008-3-25 34550 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills. 259 Comment
  RSA734815  Gilia angelensis A. C. Sanders, Fred M. Roberts 2008-3-25 34574 Orange Saddle on ridge near head of Weir Canyonm, 5.3 miles ENE of Villa Park, 3.1 mi. N of (Santiago Reservoir) Irvine Lake. 405 Comment
  SEINET272170  Gilia capitata subsp. abrotanifolia G. K. Helmkamp, E. A. Helmkamp 1997-4-24 1660 Orange Cleveland National Forest ; Cleveland National Forest 1.6 mi. SE of Ortega Hwy (CA-74) on Rd. 7-S14. UTM 10km cell: MH-5E 1N. San Juan Hot Spring 549 Comment
  RSA699133  Gilia clivorum J. R. Bruff 1927-3-16 2 -N Orange 1 mi. N.E. of Country Club. Comment
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Sep 20 2011
  RSA734687  Gnaphalium canescens subsp. microcephalum A. C. Sanders, T. B. Salvato 2008-5-13 35353 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
  POM201846  Gnaphalium chilense L. M. Booth 1932-12-13 1374 Orange Newport Bay. Comment
  POM196473  Gnaphalium chilense J. T. Howell 1927-10-29 3183 Orange Bryant Ranch near Long Beach. 15 Comment
  RSA782059  Gnaphalium luteoalbum Mark A. Elvin 2003-2-23 2312 Orange Irvine, San Joaquin Marsh along the berm of San Diego Creek 3 Comment
  POM201510  Gnaphalium microcephalum L. M. Booth 817 Orange Santa Ana Canyon Comment
  RSA734646  Gnaphalium palustre A. C. Sanders, T. B. Salvato 2008-5-13 35360 Orange Lomas de Santiago, Santiago Canyon above (S of) mouth of Hangman Tree Canyon, just below Modjeska Canyon confluence 366 Comment
  CDA21577  Gnaphalium stramineum Mark A. Elvin, Peter A. Bowler 2006-5-13 4861 Orange Southern Coastal; Irvine: San Joaquin Freshwater Marsh, near Campus and University Drives 1.7 kilometers (air) north-northwest UC Irvine Campus center. Comment
  IRVC29561  Gnaphalium stramineum Mark A. Elvin, P. A. Bowler 2006-5-13 4861 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7km (air) NNW UC Irvine campus center. Southern Coastal 3 Comment
  UCR102016  Gnaphalium stramineum B. G. Pitzer 1997-3-25 3018 Orange San Joaquin Hills, Crystal Cove State Park, Pelican Point Area, grassland between Pacific Coast Hwy and the bike trail 30 Comment
  CDA6068  Gnaphalium stramineum Walden 1951-5-24 Orange Dr. Beebe, southwest corner Gilbert & Orange, Anaheim. 0 Comment
  IRVC9357  Gnaphalium stramineum B. T. Gittins 1963-5-29 239 Orange Orange State College. Fullerton Comment
  UCR207597  Grindelia O. F. Clarke 2004-5-19 s.n. Orange South Coast, Fairview Park, Costa Mesa 24 Comment
  LA203653  Grindelia camporum J. A. Ewan; 1932-7-28 7703 Orange Corona del Mar Comment
  RSA603291  Grindelia camporum R. E. Riefner 1997-7-12 97 -232 Orange San Clemente State Beach Comment
  RSA161302  Grindelia camporum var. bracteosa Peter H. Raven 1959-4-30 14038 Orange Base of ocean bluffs just N of San Clemente. Comment
  SEINET179462  Grindelia camporum var. bracteosa L. M. Booth 1932-5-24 1092 Orange Newport Bay Comment
  CAS-BOT-BC305208  Grindelia hirsutula John Thomas 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
  UC718319  Grindelia hirsutula Carl B. Wolf 1936-7-8 8101 Orange Coast Highway w end of Newport Bay Newport Bay 9 Comment
  RSA17135  Guillenia lasiophylla E. R. Johnson 1936-4-27 7776 Orange Rancho Santa Ana, Santa Ana cayon, in Canyon W of Tennis court, Botanic Garden. 168 Comment
  CDA6157  Guizotia abyssinica Robert L. Pope 1967-6-13 Orange 0 Comment
  SD236194  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 299 Comment
  SD72732  Gutierrezia californica F. R. Fosberg 1931-6-21 S 5084 Orange Lower Santiago Canyon. Comment
  UCR193059  Gutierrezia californica A. C. Sanders, Fred M. Roberts 2008-6-17 35503 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, Windy Ridge Rd., saddle on ridge at head, above the Eastern Transportation Corridor 400 Comment
  RSA627787  Hainardia cylindrica Scott D. White 1998-6-26 6785 Orange South Coast: Univ. of Calif. Irvine Campus. Along mapped intermittent blueline stream just N of Bonita Cyn Dr. 61 Comment
  RSA752819  Haplopappus menziesii A. C. Sanders, Fred M. Roberts 2008-8-7 35975 Orange lower Weir Canyon, at narrow gorge c. 0.6 mi. above mouth of cyn at Irvine Ranch gate. 185 Comment
  HSC5758  Haplopappus venetus J. W. Johnson 1961-3-29 Orange Newport Beach, N slope overlooking upper Newport Bay Comment
  RSA549993  Haplopappus venetus Scott D. White 1992-9-23 847 Orange Vicimity of Olind, near city of Brea, immediately N of Carbon Canyon Rd. & E of Placentia Ave. +/- 1 mi. (airline) S/SE of Tonner Canyon. 183 Comment
  UCR162346  Haplopappus venetus subsp. furfuraceus Robert DeRuff 2003-11-28 525 Orange Southern Coast, Newport Beach, Upper Newport Back Bay 30 Comment
  RSA0066589  Harpagonella palmeri Fred M. Roberts 1988-3-15 3870 Orange Rancho Mission Viejo: Central Gabio Canyon, 7.0 km E Playa Survey Marker. 162 Comment
  RSA0002527  Hasseanthus elongatus L. R. Abrams 1901-06 1785 Orange San Joaquin Hills Comment
  UC1118833  Hazardia squarrosa var. grindelioides A. Lewis 1934-4-1 430 Orange Los Pinos Peak Cleveland National Forest, Elsinore Quad., Los Pinos Peak 1219 Comment
  UCR26998  Hedera helix E. W. Lathrop 1966-5-13 6297 Orange Santa Ana Mountains, 5 mi east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest 400 Comment
  RSA359731  Hedypnois cretica C. B. Wolf 1938-5-2 9406 Orange City of Fullerton, Francis street, 1200 block E side in vacant lot. 61 Comment
  RSA751327  Hedypnois cretica A. C. Sanders, Fred M. Roberts 2008-5-6 35261 Orange Lomas de Santiago, slope SE of road junction along ridge road, near head of Agua Chinon Canyon, 2.4 miles north of El Toro 470 Comment
  SEINET11196714 Image available Hedypnois cretica D. Atwood 1993-3-28 17716 Orange Bolsa Chica Ecological Reserve, California Dept. of Fish and Game. Comment
  RSA39337  Hedypnois cretica E. L. Paddock 1943-5-29 12743 Orange S of Devdar, 1/4 mile E of Carolina Ave extension, Brea. Comment
  JEPS35550  Helenium puberulum L. M. Booth 1932-7-9 1285 Orange Bolsas Creek Comment
  UCR4047  Helianthemum scoparium Carole Sims 1965-3-25 s.n. Orange Santa Ana River Canyon, hillside at 24000 Santa Ana Canyon Road (= State Hwy 91), 150 yards north of hwy; also called Gypsum Canyon. West side of gravel company's trucking road. 221 Comment
  IRVC772  Helianthus annuus D. DeVault 1965-3-28 Orange Corona del Mar, Bayside Dr. and Jamboree Rd. Newport Beach Comment
  SEINET156042  Helianthus annuus Norman C. Cooper 1944-6-4 1366 Orange Elsinore Mtn. Lookout at top. 1067 Comment
  UCSB18113  Helianthus annuus Daniel, Dick 1964-3-28 Orange 0.5 miles S of junction of Santiago Canyon Road and Chapman Street, 4 miles E of Orange 274 Comment
  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
  CAS-BOT-BC305655  Helianthus ciliaris T. C. Fuller 1962-6-7 8874 Orange Veeh ranch, n. of El Toro, ca. 11 mi. s.e. of Tustin Comment
  CAS-BOT-BC305657  Helianthus ciliaris E. Paddock 1942-7-21 11291 Orange Toler Ranch, N. side Ocean Ave., 1/4 mi. W. of La Mirada Rd., LaHabra Comment
  OBI4714  Helianthus ciliaris T. C. Fuller 1962-6-7 8874 Orange Veeh ranch, N of El Toro, ca 11 mi SE of Tustin Comment
  RSA736587  Helianthus gracilentus Keith E. Hoffmaster 1934-5-13 173 Orange Santa Ana Mountains Comment
  RSA748268  Helianthus gracilentus A. C. Sanders, Fred M. Roberts 2008-6-17 35513 Orange middle section of Weir Canyon, SSE of Walnut Canyon Reservoir 225 Comment
  UCR230222  Helianthus gracilentus Dick Newell, Ed Hill 2011-3-29 099 Orange Peninsular Range; Santa Ana Mtns., 200 yards NE of old coal mine, under power lines, off Coal Rd. below intersection with Upper Blind Cyn. Rd. 482 Comment
  RSA0031764  Helianthus gracilentus R. F. Thorne 1977-11-21 50810 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs Comment
  RSA784269  Helianthus gracilentus J. D. Olmsted 1959-8-26 838 Orange Along road from mouth of Black Star Canyon by Rock Crushing Plant.; Mt. range: Santa Ana Mts (N end); drainage area: to Santiago Res[ervoir]. 305 Comment
  JEPS67980  Heliotropium curassavicum Lawrence M. Booth 1932-6-9 1172 Orange mouth of Santa Ana R. Comment
  RSA752718  Heliotropium curassavicum var. oculatum Fred M. Roberts 2009-4-21 7157 Orange Dana Point Headlands: southern cliffs, 0.7 km W Marine Institute at Dana Point Harbor. CNLM Dana Point Preserve. 3 Comment
  UCD119434  Heliotropium curassavicum var. oculatum B. Pitzer 1996-4-30 2770 Orange Upper Newport Bay: Calif. Dept. Fish and Game Ecological Reserve, off (W of) Jamboree Rd. 6 Comment
  RSA77876  Heliotropium curassavicum var. oculatum F. W. Peirson 1924-8-29 5077 Orange 3 miles from Balboa Beach. Comment
  RSA254941  Hemizonia australis C. W. Tilforth 1975-9-6 1047 Orange Upper Bay, Newport Beach: North-east shoreline. Comment
  RSA30668  Hemizonia australis L. C. Wheeler 1932-6-25 849 Orange 5 miles west of Santa Ana. 22 Comment
  RSA520925  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
  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
  RSA807  Hemizonia australis J. T. Howell 1927-6-30 234 Orange Bryant Ranch near Long Beach. 15 Comment
  RSA0008438  Hemizonia australis Fred M. Roberts 1985-9-17 2263 Orange Irvine: Lot between Walnut Ave. Harvard Ave. and Peter's Creek Channel. 20 Comment
  CLARK-A1528-238  Hemizonia fasciculata Cesareo Perez 1971-5-18 19 Orange Villa Park Comment
  IRVC20825  Hemizonia fasciculata Fred M. Roberts 1982-7-30 785 Orange Niguel Hill, 0.9km ENE Aliso Peak, Laguna Niguel 260 Comment
  UCR131870  Hemizonia fasciculata J. Mallory, V. McCoy 1995-7-3 6454- 73 Orange Santa Ana Mountains: N-facing slope in Santiago Canyon, c. 0.5 mi. east of Santiago Canyon Rd; near Irvine Park 200 Comment
  UCR239888  Hemizonia fasciculata O. F. Clarke 2004-6-23 s.n. Orange South Coast, Newport Back Bay, just south of the Muth Interpretive Center 15 Comment
  RSA542437  Hemizonia paniculata Fred M. Roberts 1988-7-29 4125 Orange Aliso Viejo: Upper Wood Canyon, 1.5 km N Moulton Peak. 165 Comment
  UCR158023  Hemizonia parryi subsp. australis Adrian Wolf 1998-7-1 425 Orange South Coast, University of California, Irvine East Campus, corner of Bonita Canyon Rd.and Culver on west side of road 70 Comment
  UCR66261  Hemizonia parryi subsp. australis D. E. Bramlet 1990-11-3 2064 Orange W side Upper Newport Back Bay, c. 50 m NW of the Delhi channel. Population c. 100 m SE of end of University Dr. 23 Comment
  JEPS43407  Hesperocnide tenella Lawrence M. Booth 1932-5-19 1064 Orange Newport Bay Comment
  UC537059  Hesperocnide tenella P. A. Munz 1934-3-26 13134 Orange Newport Beach 6 Comment
  POM201868  Heteromeles arbutifolia L. M. Booth 1932-6-7 1166 Orange Newport Lagoon. Comment
  SD241168  Heteromeles arbutifolia T. B. Salvato 2010-9-27 5123 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) 60 Comment
  SD42379  Heteromeles arbutifolia P. C. Everett 1936-1-25 7697 Orange Santa Ana Canyon, Rancho Santa Ana, from a wild plant in the Palm Canyon in the Botanic Garden 182 Comment
  UCR16774  Heteromeles arbutifolia Cesareo Perez 1971-5-4 04 Orange South Mesa Drive and Lemon Street, Villa Park Comment
  UCR174217  Heteromeles arbutifolia A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33060 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
  RSA0072398  Heteromeles arbutifolia Percy C. Everett 1936-1-25 7697 Orange Santa Ana Canyon, Rancho Santa Ana. In Palm Canyon in the Botanic Garden. 183 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-BC318903  Heterotheca grandiflora J. Ewan 1931-10-3 s.n. Orange 1/2 mile above La Vida Soda Springs, Carbon Canyon Comment
  JEPS20385  Heterotheca grandiflora Alice King Orange New Port Comment
  CHSC26373  Heterotheca sessiliflora subsp. fastigiata James Henrickson 1970-9-5 Orange 2 1/2 miles NW of Huntington Beach; in northern part of Bolsa Chica Salt Marsh. 0 Comment
  UCR224404  Hibiscus trionum Robt. L. Allen 2008-4-9 s.n. Orange South Coast, Irvine, Irvine Valley College, near norhteast corner of Student Services building 45 Comment
  HSC6595  Hirschfeldia incana J. W. Johnson 1961-3-29 Orange Newport Beach, N slope overlooking upper Newport Bay Comment
  RSA732170  Hirschfeldia incana A. C. Sanders, Fred M. Roberts 2008-3-25 34540 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  RSA743501  Hirschfeldia incana Fred M. Roberts 2008-7-10 7077 Orange Dana Point: Dana Point Headlands, CNLM Preserve, near Strands Road Gate, 0.8km WNW Marine Institute, Dana Point Harbor. 65 Comment
  UCR247907  Hoita macrostachya Fred M. Roberts 2013-6-12 7785 Orange Peninsular Ranges, SANTA ANA MTNS.: Lower Silverado Canyon along Silverado Creek on north side of Silverado Canyon Road, 0.6 km ENE Silverado School and 1.4 km up stream Black Star Road crossing. 320 Comment
  POM357588  Holodiscus discolor W. Pequegnat 1940-6-19 s.n. Orange North face of Los Pinos Peak 1159 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
  CAS-BOT-BC150010  Holodiscus discolor var. discolor P. C. Everett 1935-6-18 7221 Orange Santa Ana Mts., summit of Santiago Pk. 1731 Comment
  CAS-BOT-BC285000  Hordeum depressum P. A. Munz 1918-5-5 2192 Orange Laguna Beach Comment
  POM1305  Hordeum depressum P. A. Munz 1918-5-5 2192 Orange Laguna. Comment
  RSA4806  Hordeum depressum James Snow 1932-1 s.n. Orange Bryant Ranch , near Long Beach, Calif. Station #1, Plant 6 Comment
  RSA642532  Hordeum intercedens D. E. Bramlet 1999-6-11 2808 Orange On slope 76m east of Cristianitos Creek and 488m northeast of the intersection of Avenida Pico and Cristianitos Road., UTM 11S 04 47 340mE X 37 02 080mN. 79 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
  SBBG119309  Hordeum intercedens D. Bramlet 1998-5-20 2622 Orange San Juan Hills, ca. 488 m W of La Pata Ave and 1.22 km N of Prima Deshecha Canada; ca. 457 m E of the old ridgeline rd Comment
  UCR150373  Hordeum intercedens D. E. Bramlet 1998-5-20 2622 Orange Coastal Plains & Basins/Coastal Plains region, San Juan Hills: 488 m west of La Pata Ave. and 1.22 km N of Prima Deshecha Canada. A blue-line drainage 457 m east of the old ridgeline road 149 Comment
  RSA651784  Hordeum leporinum Bob Edwards 1948-5-14 s.n. Orange Found on vacant lot in Orange. 59 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
  UCR102009  Hordeum murinum B. G. Pitzer 1997-3-25 3002 Orange San Joaquin Hills, Crystal Cove State Park, Pelican Point Area, grassland between Pacific Coast Hwy and the bike trail 30 Comment
  HSC94292  Hordeum murinum subsp. murinum D. Atwood 1993-3-28 17710 Orange Bolsa Chica Ecological Reserve, California Dept. of Fish and Game. 0 Comment
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Jul 8 2010
  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
  RSA542357  Horkelia cuneata subsp. puberula Fred M. Roberts 1988-4-26 3945 Orange San Joaquin Hills, Pelican Hill, 0.4 km SW summit. 183 Comment
  UC582823  Horkelia cuneata subsp. puberula Philip A. Munz 1936-4-20 14606 Orange Laguna Beach Mt. Olympus 152 Comment
  UCSB52886  Horkelia cuneata var. puberula Roberts, Fred 1983-9-26 Orange Santa Ana Mtns., Lion Canyon, Chiquito Basin Trail, 3.3km NNE Lower San Juan Picnic Ground; 4.3km SSE Los Pinos Peak 810 Comment
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Oct 28 2018
  CAS-BOT-BC55487  Hornungia procumbens Helen D. Geis 1902-3-21 s.n. Orange Balsa Chica. Comment
  CAS-BOT-BC539350  Hypericum canariense R. E. Riefner, Jr. 2010-6-9 10 -56 Orange City of San Juan Capistrano, La Novio Ave. at Valle Rd. 45 Comment
  RSA747712  Hypochaeris glabra Fred M. Roberts 2008-4-9 6867 Orange Dana Point: Dana Point Headlands, CNLM Preserve near Outlook 2, 0.7 km W Marine Institute (Dana Point Harbor). 52 Comment
  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
  UCR220958  Hypochaeris glabra Dick Newell, Don Millar 2010-4-20 15 Orange South Coast Region, top of Serrano Ridge, 1 km west of the Nix Center/Laguna Canyon Rd. 229 Comment
  RSA789497  Iberis gibraltarica John Murphy 1938-6-6 14 Orange Birch Park Comment
  IRVC996  Ipomoea mutabilis McGuire 1965-5-10 Orange Corona del Mar. Newport Beach Comment
  IRVC25168  Isocoma menziesii var. vernonioides Fred M. Roberts, B. Fugle 1986-10-1 3145 Orange Laguna Hills; creek channel along Cabot Rd. ca. 1.0km N Pacific Park Pkwy. Southern Coastal 99 Comment
  OBI41038  Isocoma menziesii var. vernonioides Melissa Thorme 1983-11-23 18 Orange Southern most housing tract in Corona Del Mar Comment
  RSA234537  Isocoma menziesii var. vernonioides James Henrickson 1970-9-5 5317 Orange 3.5 miles NW of Huntington Beach, 0.25 mile SE of Warner Ave. in Lower Littoral zone of Bolsa Chica Salt Marsh along outer Bolsa Bay. 0 Comment
  RSA5239  Isocoma menziesii var. vernonioides C. B. Wolf 1932-9-13 4027 Orange Bryant Ranch: Triangle of waste ground S of Bryant Ave., & 1/2 mi. west of Los Alamitos Blvd. (Triangle waste ground at NW corner of SW 1/4 sect. 30 T4S R11W) 8 Comment
  RSA640310  Isocoma menziesii var. vernonioides L. C. Wheeler 1931-6-8 s.n. Orange Balboa Comment
  RSA743518  Isocoma menziesii var. vernonioides Fred M. Roberts, Carol A. Roberts 2008-9-28 7114 Orange Dana Point: Dana Point Headlands, CNLM Preserve near NE Gate, 0.5 km W Marine Institute (Dana Point Harbor). 75 Comment
  RSA660590  Isolepis carinata R. E. Riefner 2000-7-10 20 -641 Orange Nature Reserve of Orange County. Los Trancos Canyon, E of Pelican Hill. Comment
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Jul 18 2011
  UCSB70085  Isolepis cernua Sanders, A. 2008-7-3 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, along Weir Canyon Rd. 1.2 mi. SSE of Walnut Canyon Reservoir, below Upper Blind Canyon Rd. 212 Comment
  IRVC312  Isomeris arborea Aldis 1965-3-27 Orange Irvine [Regional] Park Comment
  IRVC9274  Isomeris arborea B. T. Gittins 1963-5-24 247248 Orange Newport Bay, beside road near salt ponds. Newport Beach Comment
  JEPS34772  Jaumea carnosa L. M. Booth 1932-6-9 1183 Orange Newport Bay Comment
  POM11677  Jepsonia parryi P. A. Munz, I. M. Johnston 1922-5-18 5314 Orange Santa Ana River Canyon, 3 miles south of Orange Co. line., side canyon. 457 Comment
  UCR93338  Jepsonia parryi G. R. Ballmer 1994-11-16 s.n. Orange Peninsular Range; Santa Ana Mtns., Ortega Hwy in vicinity (W of) of National Forest boundary 250 Comment
  CAS-BOT-BC101920  Juglans californica Ira L. Wiggins 1966-5-11 20660 Orange Carbon Canyon, about 1 mile above its mouth Comment
  SD253480  Juglans hindsii R. E. Riefner Jr. 2010-9-8 10 121 Orange City of Laguna Beach, Laguna Canyon, ca 0.15 mile S of El Toro Road on E side of Laguna Canyon Road. 74 Comment
  UCD169185  Juglans hindsii R. E. Riefner Jr. 2013-11-6 13- 234 Orange City of Laguna Beach, Laguna Canyon. N of Phillips St. on E side of Laguna Canyon Rd. 71 Comment
  SD255201  Juglans regia R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49798 Orange Santa Ana Mountains: Trabuco Canyon, below Yaeger Mesa. Comment
  RSA683232  Juncus acutus Scott D. White, Matt Carlton 2003-11-20 9861 Orange Santa Ana Mountain foothills; San Juan Creek in San Juan Capistrano; (Dana Point) 24 Comment
  IRVC29826  Juncus acutus subsp. leopoldii Artie Thomas, Mark A. Elvin 2006-9-23 609238 Orange San Joaquin Marsh Freshwater Marsh, UC Natural Reserve; SW edge, along San Diego Creek, N of University Drive, E Hwy 73. Southern Coastal 2 Comment
  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
  UCR4761  Juncus acutus subsp. leopoldii Barbara T. Gittins 1966-5-29 1369 Orange Upper Newport Bay Comment
  UCR193378  Juncus balticus subsp. ater A. C. Sanders, Mitch Provance 2008-5-20 35395 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, mouth of Hangman Tree Canyon just above confluence with Santiago Creek Canyon, c. 1/2 mile below Modjeska Canyon confluence 366 Comment
  UCR157713  Juncus bufonius Adrian Wolf 1998-5-15 274 Orange South Coast, Lambert Reservoir, north of El Toro Marine Corps Air Station 134 Comment
  UCSB48028  Juncus bufonius var. bufonius Roberts, Fred 1980-5-4 Orange Mission Viejo: along Santa Fe Railroad and Camino Capistrano; 1.7km N Crown Valley Parkway; 1.1km S BM 316 14 Comment
  RSA734632  Juncus bufonius var. congestus A. C. Sanders, T. B. Salvato 2008-5-13 35381 Orange Lomas de Santiago, Santiago Canyon above (S of) mouth of Hangman Tree Canyon, just below Modjeska Canyon confluence 366 Comment
  UCD169360  Juncus macrophyllus A. C. Sanders; Fred M. Roberts, Michelle Balk 2006-7-20 33045 Orange Peninsular Range; Santa Ana Mtns., San Juan Canyon, from Lower San Juan Picnic Area to c. 1 mile downstream, parallel to Hwy 74 and near Riverside Co. line. 366 Comment
  RSA108  Juncus mexicanus J. T. Howell 1927-7-18 436 Orange Santa Ana River, Rancho Santa Ana. 152 Comment
  RSA734854  Juncus patens A. C. Sanders, Mitch Provance 2008-5-20 35399 Orange Lomas de Santiago, mouth of Hangman Tree Canyon just above confluence with Santiago Creek Canyon, c. 1/2 mile below Modjeska Canyon confluence 366 Comment
  UCR177288  Juncus phaeocephalus Scott D. White, Amanda Duchardt 2003-5-1 9151 Orange Santa Ana Mountains, Canada Gobernadora 122 Comment
  RSA0014060  Juncus rugulosus Fred M. Roberts, R. E. Riefner 2010-5-30 7134 Orange Lomas de Santiago: Loma Ridge, Hanging Man s Tree Cyn., along Hanging Man s Tree Cyn. Rd., c.a. 0.4km W Santiago Cyn. Rd., and 1.2 km N Bolero Lookout. 372 Comment
  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
  POM201668  Juncus xiphioides L. M. Booth 836 Orange Santa Ana Canyon. Comment
  SEINET10932779  Juniperus chinensis Carlyle Wilson Bennett, David B. Dunn; Chester T. Dziekanowski 1976-7-21 Bennett 438 Orange Cultivated plants collected in and around the condominium-Pacific Island Estates in Laguna Hills; some native shrubs, etc. 150 Comment
  UCR246394  Juniperus rigida var. conferta R. E. Riefner Jr. 2012-10-21 12- 521 Orange South Coast, city of Newport Beach, Corona del Mar, c. 0.5 mi south from the intersection of Poppy Ave./Ocean Blvd. at Little Corona Beach 12 Comment
  UC1280772  Keckiella antirrhinoides H. E. McMinn 1935-6-22 3920 Orange e base of n end Santa Ana Mountains Comment
  UCR47794  Keckiella antirrhinoides subsp. antirrhinoides D. C. Michener 1980-6-5 3668 Orange Peninsular Range; Santa Ana Mtns., San Juan river valley, on terrace near abandoned mine(s) Comment
  CAS-BOT-BC235531  Keckiella antirrhinoides var. antirrhinoides Helen D. Geis 1904-5-1 735 Orange Silverado Canon [Canyon], Santa Ana Mountains 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
  RSA401777A  Keckiella cordifolia M. B. Dunkle 1933-5-30 s.n. Orange Carbon Canyon Comment
  RSA542500  Keckiella cordifolia Fred M. Roberts 1988-5-12 3964 Orange Anaheim Hills: Upper Deer Canyon, 7.7 km W Sierra Peak. 268 Comment
  UC1063228  Keckiella cordifolia A. Lewis May 1934 426 Orange Trabuco Canyon; Elsinore Quad. 1341 Comment
  UC729869  Keckiella cordifolia Carl B. Wolf 1932-7-2 Orange .12 mi below La Vida Springs; Carbon Canyon 213 Comment
  UCR228799  Keckiella cordifolia Dick Newell, Don Millar 2011-5-3 140 Orange Coastal Plains, San Joaquin Hills, Laguna Canyon Wilderness Park, Willow Trail 160 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
  RSA80422  Kickxia elatine F. W. Peirson 1927-9-25 7676 Orange in flats below Wintersberg. 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
  RSA753162  Koeleria macrantha D. E. Bramlet 2008-4-28 4245 A 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
  SD236409  Koelreuteria bipinnata T. B. Salvato, Katie Kurtz, Mitch Provance 2006-10-15 1903 Orange South Coast: Irvine, San Diego Creek flood control channel, between Campus Drive and Michelson Drive. Wide channel between high constructed berms. 6 Comment
  SEINET4559543  Koelreuteria bipinnata T. B. Salvato, Katie Kurtz, Mitch Provance 2006-1 1903 Orange South Coast; Irvine, San Diego Creek Flood control channel between Campus Drive and Michelson Drive 6 Comment
  RSA731652  Kyllinga brevifolia Fred M. Roberts 2007-10-29 6627 Orange Laguna Beach: Temple Hill, Nyes Place, c.a. 0.2 km S Moulton Meadows Park. 232 Comment
  CDA15831  Kyllinga brevifolia B. Butcher 1999-11-17 PDR 1237873 Orange Southern California; Santa Ana. 0 Comment
Read comments
Oct 27 2010
  UC729889  Lactuca serriola Carl B. Wolf 1932-7-7 3839 Orange s edge of field 100 ft w Hansen Road; Bryant Ranch, Bixby Ave. 48 Comment
  CAS-BOT-BC340716  Laennecia coulteri I. M. Johnston 1918-9-3 2148 Orange Laguna Canon [Canyon], San Joaquin Hills 106 Comment
  UC485371  Laennecia coulteri C. F. Millspaugh 1920-1-19 4602 Orange Middle Ranch Comment
  UCR240187  Lagunaria patersonia R. E. Riefner Jr. 2011-6-29 11- 76 Orange South Coast, city of Laguna Beach, general area of Shaw's Cove, vicinity of Cliff Drive and Fairview Street 1 Comment
  RSA0127415  Lamarckia aurea Fred M. Roberts 2016-3-17 8010 Orange San Joaquin Hills: City of Irvine, Bommer Canyon, east fork, 0.3 km ESE Cattle Camp near East Fork Trail. 152 Comment
  UCR192490  Lamarckia aurea A. C. Sanders, Fred M. Roberts 2008-3-25 34557 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  RSA56  Lamarckia aurea J. T. Howell 1928-2-26 855 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA663163  Lamium amplexicaule R. E. Riefner Jr. 2000-6-26 20 -584 Orange NCCP North Ranch Policy Plan Area. Along dirt road running N from Baker Canyon Road. 305 Comment
  RSA588850  Lampranthus multiradiatus Fred M. Roberts 1989-10-4 4433 Orange South Laguna: south of, and near west end of Monterey Street, 0.6km W Aliso Peak. 33 Comment
  CAS-BOT-BC338903  Lasthenia californica C. B. Wolf 1931-3-6 1847 Orange 1 mile above Trabuco Oaks, Trabuco Canyon, west slope of the Santa Ana Mts. 518 Comment
  SEINET7287976  Lasthenia californica C. B. Wolf 1932-3-8 Orange 1/2 Mile north of Corona Del Mar. Bordes of Newport Bay 8 Comment
  UC135152  Lasthenia gracilis C. F. Baker 1904-1-1 4088 Orange Anaheim Comment
  RSA406637  Lathyrus vestitus subsp. alefeldii M. B. Dunkle 1935-3-3 4353 Orange San Juan Canyon. 457 Comment
  RSA3164  Lathyrus vestitus subsp. alefeldii C. B. Wolf 1932-3-8 2699 Orange Santiago Dam, W. base Santa Ana Mts. 305 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
  IRVC11716  Lathyrus vestitus subsp. laetiflorus B. T. Gittins 1963-4-18 171-D Orange Silverado Canyon. Santa Ana Mountains Comment
  IRVC2207  Lathyrus vestitus subsp. laetiflorus B. Mawdsley 1965-5-2 Orange Cleveland National Forest; Silverado [Canyon]. Santa Ana Mountains Comment
  IRVC2214  Lathyrus vestitus subsp. laetiflorus M. Savage 1965-3-1 Orange Corona del Mar, Golf Course. Newport Beach Comment
  UCR217461  Lavatera cretica Mark A. Elvin 2003-2-23 2308 Orange South Coast, Irvine, San Joaquin Marsh along the berm of San Diego Creek 3 Comment
  RSA699674  Layia platyglossa Keith E. Hoffmaster 1935-4-19 s.n. Orange Santiago can. near Silverado ca., Santa Ana Mountains. Comment
  SD218972  Layia platyglossa Bramlet, Jim Harrison 2008-4-3 4151 Orange Santa Ana Mountains region; South Bee Canyon Bowerman landfill site, 1.2 km south of the Bee Canyon access road and 122 m west of the active landfill. Comment
  IRVC18939  Layia platyglossa T. L. Ackerman 1982-4-24 82 -260 Orange S of Live Oak Canyon Rd., on dirt trail from road to Methodist Church; disturbed chaparral; Santa Ana Mountains Comment
  UCSB52476  Lemna minuta Roberts, Fred; Ferren, Wayne 1982-7-21 Orange Newport Beach; Newport Backbay, Back Bay Dr., 1.4 km. N jct. San Joaquin Hills Rd. 1 Comment
  UCR125978  Lepechinia cardiophylla Fred M. Roberts, D. E. Bramlet 2002-6-6 5524 Orange Santa Ana Mtns., Main Divide Truck Trail, Upper Indian Canyon, 1.7 km W Trabuco Peak 1268 Comment
  RSA697418  Lepidium didymum J. R. Bruff s.n. Orange Fifth St. Bridge. Santa Ana. Comment
  UCSB48078  Lepidium didymum Roberts, Jr., Fred; Fritzke, Sue 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
  IRVC1094  Lepidium lasiocarpum L. Burns 1965-4-4 Orange Trabuco Canyon. Santa Ana Mountains 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
  CAS-BOT-BC12521  Lepidium nitidum Carl B. Wolf 1932-2-15 2658 Orange Rancho Santa Ana Botanic Garden, near the tan oak beds. 182 Comment
  CAS-BOT-BC12522  Lepidium nitidum Carl B. Wolf 1932-3-8 2683 Orange 0.5 mile north of Corona Del Mar borders of Newport Bay. 7 Comment
  IRVC29094  Lepidium nitidum Fred M. Roberts 1989-3-17 4209 Orange Aliso Canyon, 3.3km SSE Moulton Pk. Aliso-Wood Canyon Regional Park 30 Comment
  JEPS53765  Lepidium virginicum Alice King 1908-3-9 Orange Anaheim Plain Comment
  CAS-BOT-BC60085  Lepidium virginicum var. menziesii Helen D. Geis 1902-1-1 531 Orange Santiago Creek. Comment
  CAS-BOT-BC329357  Lepidospartum squamatum John Thomas Howell 1927-7-28 2864 Orange North side of Santa Ana Canon 152 Comment
  UCD134015  Lepidospartum squamatum J. C. Elmore 1929-10-1 2165 Orange orange. Comment
  RSA789590  Leptochloa fusca subsp. fascicularis R. F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49632 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs Comment
  IRVC27504  Leptochloa uninervia Mark A. Elvin 2004-5-2 3420 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7km (air) NNW UC Irvine campus center. Southern Coastal 3 Comment
  IRVC27751  Leptochloa uninervia Mark A. Elvin 2004-5-2 3425 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7km (air) NNW UC Irvine campus center. Southern Coastal 3 Comment
  UC537285  Leptochloa uninervia Lawrence M. Booth 1932-7-18 1262 Orange Costa Mesa Newport Bay Comment
  UCR12588  Leptochloa uninervia J. S. Davis 1972-5-6 720506- 5 Orange South Coast, Newport Beach; corner of San Joaquin Hills Road and Back Bay Road 0 Comment
  RSA542450  Leptosiphon androsaceus Fred M. Roberts 1988-4-10 3905 Orange Lomas De Santiago: Loma Ridge, Upper Limestone Canyon, c.a. 3.2 kilometer NNW Bolero Lookout. 347 Comment
  CAS-BOT-BC227045  Leptosiphon floribundus subsp. glaber E. R. Johnson 1932-5-1 3703 Orange Santa Ana Mts., along ridge, between Skyline Drive and Santiago Peak 1219 Comment
  POM49705  Leptosiphon liniflorus L. R. Abrams 1901-06 1797 Orange Trabuco Canyon Comment
  UCR221896  Leptosiphon liniflorus Dick Newell, Don Millar 2010-10-12 42 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Limestone Canyon Rd. 0.6 mile due east of Limestone Spur 290 Comment
  RSA734905  Leymus condensatus A. C. Sanders 2008-5-28 35433 Orange Lomas de Santiago, Bee Flat at mouth of Limestone Canyon 264 Comment
  RSA0018626  Leymus condensatus Rankin s.n. Orange Santa Ana. PR8. Comment
  UCR231348  Lilium humboldtii A. C. Sanders, Kent Beaman 2011-9-27 39901 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
  UCR113455  Lilium humboldtii subsp. ocellatum R. E. Riefner Jr. 2000-6-30 20- 594 Orange Santa Ana Mountains, North Ranch Policy Plan Area, N Fremont Canyon at Donaldson Ranch, adjacent to powerline crossing on W fork of Fremont Cyn drainage 427 Comment
  RSA68751  Limonium californicum var. mexicanum F. W. Peirson 1924-8-29 5048 Orange 2.5 miles from Balboa on road inland along creek. Comment
  RSA701802  Limonium duriusculum Fred M. Roberts 2000-6-5 5338 Orange Yorba Linda, along Hidden Hills Dr. near Sunbeam Lane, on ridge above Box Canyon 376 Comment
  UC1789094  Limonium duriusculum R. E. Riefner Jr. 2005-9-9 05 -664 Orange City of Lake Forest, along Aliso Creek near Portola Pkwy, at El Toro Road. 225 Comment
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Jul 5 2010
  RSA161163  Limonium perezii Peter H. Raven 1957-9-28 11394 Orange Laguna Beach. Comment
  CDA1081  Limonium sinuatum D. G. Kelch 2006-12-9 6 .545 Orange Along Newport Back Bay Dr. in side canyon. Comment
  IRVC29782  Limonium sinuatum Mark A. Elvin, Dean Kelch 2006-12-9 5294 Orange Newport Backbay; Big Canyon, lower end. Southern Coastal 3 Comment
  RSA652612  Linanthus californicus subsp. glandulosus Shlomo Gat 1959-5-12 49 Orange Hills in Orange county. Comment
  UC511103  Linanthus dianthiflorus Lyman Benson 1932-3-26 3192 Orange Dana Point 60 Comment
  POM364568  Linanthus dianthiflorus subsp. dianthiflorus Jean Carnine 1932-3-6 15307 Orange Trabuco Canyon. Comment
  JEPS58123  Linanthus parviflorus Alice King Orange Santa Ana Comment
  UCR209356  Linaria canadensis var. texana Fred M. Roberts 2008-4-8 6849 Orange Lomas de Santiago, Loma Ridge, Upper Dripping Springs Cnyn, 1.0 km northeast of Bee Peak, Irvine Ranch Conservancy 458 Comment
  UCR281516  Linaria canadensis var. texana Mitch Provance, Jeremiah George 2017-3-20 317- 107 Orange West Coyote Hills, Fullerton, vicinity of Utility Access Road W of Gilbert Street and N of Rosecrans Ave., on land previously occupied by oil fields. 131 Comment
  UC1419618  Linaria maroccana J. McNeill 1969-4-10 3034 Orange Newport, Eastbluffs, Irvine Arboretum Irvine Arboretum; Upper Newport Bay, Newport, Eastbluffs, Irvine Arboretum 15 Comment
  UCD123913  Lindernia dubia G. D. Barbe 1973-8-9 1693 Orange Bordier's Nursery, 7231 Irvine Blvd., Santa Ana (Tustin). Comment
  UCR253008  Liquidambar styraciflua Robert DeRuff 2013-8-12 581 Orange South Coast, Newport Back Bay, along storm drain from Eastbluff Dr. 3 Comment
  UCSB47587  Lithophragma affine Roberts, Fred 1980-5-3 Orange Main Divide Truck Trail, 1.9km WNW of Trabuco Peak, Santa Ana Mountains 1250 Comment
  RSA468223  Lithophragma affine subsp. mixtum Albert J. Perkins 1913-4-27 s.n. Orange Trabuco Canon. Comment
  IRVC1116  Lobularia maritima C. Duncan 1965-4-4 Orange Newport Beach Comment
  CAS-BOT-BC269105  Lolium perenne Ira L. Wiggins 1965-9-26 20259 Orange At west end of Orangethorpe Estates subdivision, near Atwood Comment
  CAS-BOT-BC269107  Lolium perenne Carl B. Wolf 1932-6-13 3714 Orange Fullerton, Rose Drive 53 Comment
  UCR100179  Lolium perenne Scott D. White 1993-3-5 1125 Orange Tustin. Marine Air Corps Air Station: SE of Red Hill Ave and NE of Barranca 15 Comment
  RSA6058  Lolium perenne C. B. Wolf 1932-6-13 3714 Orange Fullerton, Rose Drive 53 Comment
  RSA6065  Lolium perenne subsp. multiflorum C. B. Wolf 1932-6-13 3717 Orange Storm drain at Malvern and Nicholas Aves; Fullerton. 53 Comment
  UCD66669  Lolium temulentum R. M. Love 1942-4-16 9 Orange 8 mi. E of Santa Ana. Comment
  SEINET8465373 Image available Lomatium dasycarpum Norman Cooper 1944-6-4 1324 Orange Elsinore Mountain 1067 Comment
  RSA773521  Lomatium dasycarpum subsp. dasycarpum Fred M. Roberts 1999-5-3 5212 Orange Lomas de Santiago: Loma Ridge, Central Limestone Canyon, west slope, 2.2 km NW Bolero Lookout and 0.8 km NE Bolero Spring. 397 Comment
  CLARK-A1528-2431  Lomatium lucidum John C. Roos 1960-5-30 Orange Santa Ana Mountains 1066 Comment
  RSA562804  Lomatium lucidum Steve Boyd, Timothy S. Ross 1992-5-20 7476 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of the wilderness in Lucas Canyon, along foot trail upstream from end of old roadgrade to upper homestead (corrugated steel building). 350 Comment
  UCR130488  Lomatium utriculatum R. E. Riefner Jr. 2000-4-27 00- 392 Orange Santa Ana Mountains, North Ranch Policy Plan Area, along dirt road running south from Baker Canyon Road to Silverado Road 335 Comment
  CAS-BOT-BC241459  Lonicera involucrata var. ledebourii Agnes M. Bowman 1899-6-1 s.n. Orange Orange Comment
  RSA697263  Lonicera subspicata Keith E. Hoffmaster 1933-5-27 s.n. Orange Santa Ana Mountains. Comment
  UCR228771  Lonicera subspicata Dick Newell, Don Millar 2011-7-19 212 Orange Peninsular Range; Santa Ana Mtns., foothills above Black Star Canyon Rd. (SCE access road), 3.15 mi. ENE (83 deg. ) of Irvine Lake dam 494 Comment
  RSA0023266  Lonicera subspicata var. johnstonii R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49781 Orange Santa Ana Mountains: Trabuco Canyon. 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
  IRVC15130  Lotus heermannii var. heermannii A. S. Boughey 1968-7-9 383 Orange Santa Ana mtns: upper Santiago Canyon. Peninsular Ranges Comment
  UC1607985  Lotus purshianus var. purshianus Donald G. Nelson 1935-7-5 345 Orange E. Elm St. Brea (along roadside in dry hayfield) Comment
  CDA25636  Lotus salsuginosus A. C. Sanders, Fred M. Roberts 2008-5-6 35232 Orange Peninsular Range; Santa Ana Mountains; Lomas de Santiago, lower Hicks Canyon, just above tollway (Highway 241) crossing on Irvine Haul Road, near debris basin. Comment
  UCR26955  Lotus salsuginosus E. W. Lathrop 1966-3-23 6103 Orange Santa Ana Mtns, Cleveland National Forest, Trabuco District. 4 mi. NE of Lake Irvine, Black Star Canyon Comment
  HSC1875  Lotus scoparius J. W. Johnson 1961-3-29 Orange Newport Beach, N slope overlooking upper Newport Bay Comment
  POM183955  Lotus scoparius P. A. Munz 1932-3-29 12187 Orange Costa Mesa Comment
  RSA234521  Lotus scoparius James Henrickson 1970-7-24 5005 Orange 3 miles NW of Huntington Beach on sandy ''Rabbit'' Island in Bolsa Chica Salt March near Inner Bolsa Bay. 1 Comment
  UCR4073  Lotus scoparius 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
  RSA748819  Lotus scoparius var. scoparius G. Gust, L. Nye 2005-3-12 564 Orange Cleveland National Forest, on Hwy 74 ca. 0.5 m W of county boundary with Riverside at a pullout. 401 Comment
  SEINET10890813  Lotus scoparius var. scoparius Greg Gust, Leith Nye 2005-3-12 Gust 564 Orange Cleveland National Forest, on Hwy 74 ca. 0.5 m W of county boundary with Riverside at a pullout. 401 Comment
  RSA680538  Lotus strigosus Scott D. White 2003-3-21 8801 Orange Santa Ana Mountain Foothills: Rancho Mission Viejo. East-facing slopes above an unnamed tributary to San Juan Creek. 122 Comment
  RSA697981  Lotus subpinnatus Unspecified s.n. Orange Orange County park Comment
  RSA688873  Lotus unifoliolatus Fred M. Roberts 2003-5-1 5666 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, Cristianitos Cyn., 0.49km S Gato Gate and just west of Cristianitos Rd. (San Clemente) 84 Comment
  RSA562813  Lotus wrangelianus Steve Boyd, T. S. Ross 1992-5-20 7485 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of the wilderness in Lucas Canyon at the Lucas Canyon Trail crossing. 320 Comment
  RSA48859  Ludwigia peploides subsp. peploides J. C. Roos 1949-10-1 4685 Orange Doheney Beach. [Now Capistrano Beach] Comment
  RSA699290  Lupinus albifrons Minor Warne 1934-03 s.n. Orange Near Modjeska and S.A. Canyon Comment
  IRVC22012  Lupinus bicolor subsp. umbellatus Fred M. Roberts, Gordon Marsh 1985-3-12 1506 Orange mesa west of Ave. Pico and north of El Camino Real, 3.2km SSE Coyote Bluff; 0.6km E Bench Mark 16 (sect. 32), San Clemente 37 Comment
  IRVC2284  Lupinus bicolor subsp. umbellatus unknown 1965-4-13 HS 0423 Orange Laguna Canyon Southern Coastal Comment
  IRVC15184  Lupinus bicolor subsp. umbellatus Gordon A. Marsh, K. Conrey 1975-4-14 s.n. Orange Lomas de Santiago: Lomas Ridge, 1/4mi NNW Rattlesnake Canyon Reservoir Dam Southern Coastal Comment
  RSA442342  Lupinus densiflorus var. lacteus Agnes Lee Freeman 1942-4-24 s.n. Orange Santa Ana Rancho. Comment
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Feb 16 2013
  IRVC2309  Lupinus excubitus var. hallii C. Thompson 1965-5-8 s.n. Orange Silverado Canyon. Santa Ana Mountains Comment
  IRVC2316  Lupinus excubitus var. hallii A. S. Boughey, Pat Pembrook 1965-6-15 1038 Orange Silverado Canyon near Silverado. Santa Ana Mountains Comment
  IRVC24802  Lupinus excubitus var. hallii Fred M. Roberts, Gordon Marsh 1986-5-16 2908 Orange Ridge above San Juan Canyon, Sitton Peak Truck Trail, 4.0km W Sitton Peak, Santa Ana Mountains 670 Comment
  RSA3236  Lupinus excubitus var. hallii Carl B. Wolf 1931-5-20 2056 Orange Along Santa Fe R. R. 1 mile west of Esperanza 107 Comment
  RSA503884  Lupinus excubitus var. hallii M. B. Dunkle 1938-5-28 5285 Orange San Juan Canyon 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
  RSA699740  Lupinus latifolius subsp. parishii Keith E. Hoffmaster 1936-5-3 s.n. Orange Santa Ana Mts (Santiago Peak) Comment
  RSA4865  Lupinus longifolius E. R. Johnson 1932-4-15 2956 Orange Rancho Santa Ana, 1mile NWof Roundtop (section 16) 457 Comment
  RSA647937  Lupinus longifolius Mark Breidenbaugh, Caralisa Breidenbaugh 1992-5-24 55 Orange 1000 ft. north of Chino Hills State Park Boundary 229 Comment
  UCSB52913  Lupinus longifolius Roberts, Fred; Marsh, K. 1983-5-13 Orange San Joaquin Hills; Laguna Canyon along Laguna Canyon Road, 1.7 km. N Thruston School; 6.4 km. SE Signal Peak 50 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
  UC153540  Lupinus sparsiflorus LeRoy Abrams 1903-4-19 3277 Orange near San Juan; near San Juan Comment
  IRVC2305  Lupinus sparsiflorus subsp. sparsiflorus E. P. Cowper 1965-4-3 s.n. Orange Modjeska Canyon Santa ANa Mountains Comment
  IRVC2341  Lupinus sparsiflorus subsp. sparsiflorus J. Morgan 1965-4-13 s.n. Orange Laguna Canyon. Southern Coastal Comment
  POM156682  Lupinus sparsiflorus subsp. sparsiflorus L. R. Abrams 1903-4-19 3277 Orange San Juan Comment
  RSA405  Lupinus sparsiflorus subsp. sparsiflorus J. T. Howell 1928-2-25 843 Orange Nolina Canyon, Rancho Santa Ana. 152 Comment
  RSA113262  Lupinus sparsiflorus subsp. sparsiflorus E. K. Balls 1955-4-4 20426 Orange San Juan Creek along Hwy 74, San Juan Capistrano to Elsinore. 46 Comment
  IRVC2342  Lupinus succulentus 1965-4-18 HS 0416 Orange Trabuco Canyon. Santa Ana Mountains 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
  IRVC24922  Lupinus succulentus Fred M. Roberts, Gordon Marsh 1986-6-6 2990 Orange Black Star Canyon, Black Star Canyon Rd., 6.6km SSW Sierra Peak. Santa Ana Mountains 460 Comment
  UCR98905  Lupinus succulentus Scott D. White 1993-2-17 1051 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
  RSA0058062  Lupinus succulentus Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49660 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. Comment
  IRVC8859  Lupinus truncatus Charles W. Sexton 1964-5-17 s.n. Orange Holy Jim Canyon. Santa Ana Mountains Comment
  RSA404  Lupinus truncatus J. T. Howell 1928-2-25 839 Orange Near Bee Canyon, Rancho Santa Ana. 152 Comment
  RSA678723  Lupinus truncatus Fred M. Roberts, Robert L. Allen, Carol Roberts 2003-5-11 5852 Orange Dana Point Headlands: 0.8km SSW Richard Henry Dana School north of Marguerita Drive 76 Comment
  SEINET12154803  Lupinus truncatus J. F. Bright, Wyman, C. 1938-1 8220 Orange Laguna Beach Comment
  RSA719471  Lycium brevipes R. E. Riefner Jr. 2004-12-23 04 -558 Orange City of San Clemente, vicinity of San Clemente Pier at Ave. Del Mar. 3 Comment
  POM50622  Lycium californicum Helen D. Geis 1902-1 581 Orange Laguna Beach. Comment
  RSA428835  Lycium californicum Freda Detmers 1929-5-12 s.n. Orange Capistrano Beach Comment
  UCR207557  Lycium californicum O. F. Clarke 2004-4-5 s.n. Orange South Coast, Newport Back Bay 3 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
  UCD169742  Lythrum californicum R. F. Thorne; E. W. Lathrop, W. Wisura 1977-7-8 49631 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs. 205 Comment
  UCR174180  Lythrum californicum A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33035 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
  POM257048  Malacothamnus fasciculatus W. Pequegnat 1940-5-26 s.n. Orange Black Star Canyon, on Skyline Drive, Santa Ana Mts. 610 Comment
  RSA433313  Malacothamnus fasciculatus F. R. Fosberg 1931-6-21 S- 5101 Orange Silverado Canyon, Santa Ana Mts. Comment
  UCR166728  Malacothamnus fasciculatus Scott D. White, Jennifer H. Jones 2005-3-31 10861 Orange South Coast, City of Laguna Beach. 549 Nyes Place. Proposed home site on c. 0.5 acre. 91 Comment
  UCR197686  Malacothamnus fasciculatus A. C. Sanders, Fred M. Roberts 2008-9-18 36064 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge 330 Comment
  SEINET4039761 Image available Malacothrix floccifera O. M. Clark 1947-1 14373 Orange Crescent Bay. Comment
  UCD134433  Malacothrix saxatilis B. Pitzer 1997-11-8 3371 Orange Crystal Cove State Park, along Moro Canyon Trail, from beginning to a point ca. 1.75 miles up the canyon. 30 Comment
  RSA703645  Malacothrix saxatilis var. saxatilis R. E. Riefner Jr. 1999-8-21 99 -360 Orange Laguna Beach, west of Pacific Coast Hwy., vicinity of Aliso Creek Park and south to West Drive. 15 Comment
  CDA8326  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
  RSA528045  Malephora crocea A. C. Sanders 1990-10-6 10188 Orange Newport Bay, North Star County Beach area on the SW end of the bay, ca. 2 km inland of Highway 1. 1 Comment
  UCSB16199  Malephora crocea Valentine, D. 1963-2-23 Orange Above Dana Point Pier, 2 mi. N of Doheny Beach State Park, 4 mi. N. of junction U.S. 101 and 101A at San Clemente 10 Comment
  RSA751794  Malosma laurina A. C. Sanders, Fred M. Roberts 2008-7-3 35685 Orange upper Weir Canyon, along Windy Ridge Rd. at huge sandstone boulder (visible on Google Earth), 1.3 mi. SE of Walnut Canyon Reservoir 314 Comment
  UCD116857  Malosma laurina P. B. Kennedy 1925-1-12 s.n. Orange Irvine Range. Comment
  UCR208048  Malosma laurina D. E. Bramlet 2004-5-27 3594 Orange Donna O'Neill Reserve, SW corner of Reserve, just east of the Telaga development, 1.43 km west of Cristianitos Road and 1.37 km N of Pico 183 Comment
  RSA801481  Malva Keith E. Hoffmaster 1928-4-16 627 Orange Santa Ana. Comment
  RSA0031758  Malva parviflora Robert F. Thorne 1977-11-21 50816 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs Comment
  RSA5945  Malva parviflora Carl B. Wolf 1932-7-7 3857 Orange 300 ft S of Bryant Ave, 0.5 miles E of Los Alamitos Blvd. (300 ft S of NE corner of SE 1/4 sect 30) 8 Comment
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Apr 9 2014
  RSA647943  Malva parviflora Michelle Manolovitz, Brian Manolovitz 1992-5-24 43 Orange 1000 ft. northwest of Chino Hills State Park Boundary. 244 Comment
  POM12444  Malvella leprosa P. A. Munz 1922-9-2 6356 Orange Ponds in Laguna Canyon. 46 Comment
  UCR158159  Malvella leprosa Adrian Wolf 1998-5-27 332 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
  RSA2108  Marah macrocarpa C. B. Wolf 1931-2-9 1829 Orange Santa Ana Canyon between Horseshoe Bend and Esperanza, over whire fence along RR. 137 Comment
  UCR193277  Marrubium vulgare A. C. Sanders, Fred M. Roberts 2008-6-17 35511 Orange Peninsular Range; Santa Ana Mtns., middle section of Weir Canyon, SSE of Walnut Canyon Reservoir 225 Comment
  RSA650826  Marrubium vulgare Daniel Truong 1991-5-13 24 Orange Irvine Regional Park, left field adjacent to main entrance, within 1/4 mile radius of 'closed area' Comment
  UCSB41789  Marrubium vulgare Marshall, Lawrence 1967-11-18 Orange West side of Peters canyon reservoir near the dam 304 Comment
  CAS-BOT-BC67807  Marsilea vestita Arthur Haupt 1935-4-12 s.n. Orange Costa Mesa Comment
  RSA665952  Marsilea vestita Fred M. Roberts, Michelle Lee, Kristen Szabo 2001-4-13 5423 Orange Rancho Mission Viejo: South of San Juan Creek, 0.4km ESE Median Rancho Survey Marker., PCR Vernal Pool 7. 238 Comment
  RSA731948  Marsilea vestita subsp. vestita Fred M. Roberts, Carol A. Roberts 1991-5-22 4800 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
  RSA0126962  Matricaria discoidea R. E. Riefner 2017-4-10 17 -164 Orange City of San Clemente, San Clemente State Beach, SW area W of Concordia Elementary School. 32 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
  RSA202176  Matricaria occidentalis L. M. Booth 1932-5-12 1011 Orange Newport Bay. Comment
  UCSB42066  Matthiola incana McEnulty, Mary 1979-6-7 Orange Cliff on south side of Crescent Bay, Newport Beach 7 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
  UCR192459  Medicago rigidula A. C. Sanders, Fred M. Roberts 2008-3-25 34527 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  UCR208446  Medicago rigidula R. E. Riefner Jr. 2008-5-22 08- 120 Orange South Coast, unincorporated land between the cities of Lake Forest and Rancho Santa Margarita, El Toro Road near Meadow Ridge Drive 362 Comment
  RSA746471  Medicago rigidula R. E. Riefner Jr. 2007-3-18 07 -150 Orange City of San Juan Capistrano, San Juan Creek Rd. at San Juan Creek Circle. USGS quad: San Juan Capistrano 24 Comment
  RSA746482  Medicago rigidula R. E. Riefner Jr. 2008-5-19 08 -99 Orange City of San Juan Capistrano, 0.2 mi E of Antonio Pkwy on Hwy 74 (Ortega Hwy) 88 Comment
  RSA746516  Medicago rigidula R. E. Riefner Jr. 2007-4-1 07 -165 Orange City of Laguna Niguel, Laguna Niguel Regional Park, general vicinity of La Paz Rd. at Aliso Creek. 70 Comment
  UCR191472  Medicago truncatula A. C. Sanders, Fred M. Roberts 2008-4-8 34739 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, head of Hicks Canyon, S of Santiago Reservoir 351 Comment
  RSA639694  Melia azedarach Scott D. White, Pam DeVries 1998-12-10 s.n. Orange Brea; Oil field south of Tonner Canyon and north of Lambert rd. Comment
  CAS-BOT-BC271187  Melica Helen D. Geis 1902-1-1 555 Orange Hill near Santa Ana Comment
  RSA797664  Melica frutescens R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49768 Orange Santa Ana Mountains: Trabuco Canyon Comment
  LA10610  Melica imperfecta A. M. Johnson; 1934-4-15 4416 Orange Carmen's, Laguna Beach Comment
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Aug 29 2015
  RSA403492  Melica imperfecta Thekla Mohr 3219 Orange Laguna. Comment
  RSA696596  Melica imperfecta J. Russell Bruff 1927-3-16 2 -I Orange Gun Club. Comment
  HSC14999  Melilotus albus S. M. Clapp 1966-4-10 42 Orange Just S of Brea Canyon Rd., 1 mi. N of Brea Union Oil Property 61 Comment
  CDA25989  Melilotus indicus Mark A. Elvin 2004-5-2 3410 Orange Southern Coastal; Irvine: San Joaquin Freshwater Marsh, near Campus and University Drives; 1.7km (air) NNW UC Irvine campus center Comment
  RSA732120  Melilotus indicus A. C. Sanders, Fred M. Roberts 2008-4-8 34722 Orange Peninsular Range: Lomas de Santiago, Loma Ridge, head of Hicks Canyon. S of Santiago Reservoir. 351 Comment
  SD220061  Melilotus indicus Mark A. Elvin 2004-5-2 3410 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7 km (air) NNW UC Irvine campus center. 3 Comment
  UCR191440  Melilotus indicus A. C. Sanders, Fred M. Roberts 2008-4-8 34722 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, head of Hicks Canyon, S of Santiago Reservoir 351 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
  RSA759212  Mentzelia veatchiana Robt. Allen, Reginald Durant 2008-5-16 s.n. Orange Modjeska Peak, S face, base of a steep fire break cut from the summit down to the access road. Survey point 61. 1634 Comment
  RSA65527  Mesembryanthemum crystallinum F. W. Peirson 1920-6-25 2210 Orange 5 miles south of San Juan Capistrano. Comment
  JEPS57261  Mesembryanthemum nodiflorum L. R. Heckard and R. C. Bacigalupi 1968-5-8 1835 Orange at s end of the town of Dana Point Comment
  RSA799937  Mesembryanthemum nodiflorum Justin M. Wood 2011-4-12 3669 Orange South Coast, Santa Ana River: marsh just upstream of Pacific Coast Highway. On isolated sand capped island. 0 Comment
  UC149125  Mesembryanthemum nodiflorum LeRoy Abrams 1903-4-20 3280 Orange near San Juan (along the seashore); Southern California Comment
  RSA286421  Mesembryanthemum nodiflorum Mary H. O Brien 1976-5-1 s.n. Orange Bolsa Chica Bay 100 m e. of Hwy 1 opposite Bolsa Chica State Beach entrance station. Edge of a 6X10 meter salt burn. 0 Comment
  SEINET11942235  Mesembryanthemum nodiflorum J. F. Bright, Wyman, C. 1933-1 8222 Orange Comment
  UCR177441  Micropus californicus Scott D. White, Amanda Duchardt 2003-3-27 8860 Orange Peninsular Ranges/Santa Ana Mtns, Canyon bottom and W-facing slopes above Canada Gobernadora 183 Comment
  UC1595639  Micropus californicus var. californicus Steve Boyd and Orlando Mistretta 1991-5-9 6203 Orange se of Sierra Peak (crest of range at Oak Flat, just w of Riverside County line); Santa Ana Mountains 792 Comment
  UC149198  Microseris douglasii subsp. douglasii LeRoy Abrams 1903-4-18 3262 Orange near Capistrano (Trabuco arroyo); Trabuco 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
  RSA702990  Microseris douglasii subsp. platycarpha D. E. Bramlet, Fred M. Roberts 2003-3-27 3358 Orange Donna O'Neill Reserve. NE corner of the reserve 23m west of Cristianitos Rd. and 168m north of the E-W access road. 120 Comment
  RSA649068  Microseris douglasii subsp. platycarpha D. E. Bramlet 2000-4-12 2973 Orange Fremont Canyon. The site is 335 m south of the existing access road on the north ridge of the canyon. The site is 1.21km northeast of Santiago Creek. 335 Comment
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Feb 21 2007
  RSA789582  Microseris heterocarpa R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49654 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. Comment
  UCR107841  Microseris heterocarpa Scott D. White 1998-3-18 6213 Orange UCI, site of proposed research park, c. halfway between Berkeley Ave. and new freeway. 37 Comment
  RSA749306  Microseris lindleyi Fred M. Roberts 1999-4-21 5179 Orange Lomas de Santiago: Loma Ridge, ridges north of Dripping Springs Cyn., 1.5 km W Silverado Sch. and 4.8 km NNW Bolero Lookout. 365 Comment
  RSA606307  Microsteris gracilis subsp. gracilis Jon E. Keeley 1994-4-5 25264 Orange First year burn, east end of Caspers Park S-7 (Keeley 1994). 215 Comment
  UCD122219  Mimulus aurantiacus Steve Mason; Pam Rector 1993-4-16 1 Orange Laguna Niguel, Sea View Park Trail, end of trail behind blue rails and Ceanothus sp. Coastal sage scrub on bluff near housing development overlooking canyon and coastline. 182 Comment
  POM305825  Mimulus aurantiacus var. pubescens Henry J. Ramsey, Henry J. Ramsey 1937-4-2 1075 Orange Capistrano Canyon. Comment
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Dec 17 2011
  RSA420310  Mimulus aurantiacus var. pubescens R. S. Woglum 1932-4-16 s.n. Orange Trabuco Canyon, Santa Ana Mountains, Cleveland National Forest Comment
  RSA551152  Mimulus aurantiacus var. pubescens David M. Thompson 1992-5-16 1066 -a Orange 2.4 mi. N and W of Hwy 74 along USFS Rd. 3S04 (N side of paves loop allowing access to Main Divide Rd.) 945 Comment
  UCSB48103  Mimulus aurantiacus var. pubescens Roberts, Fred; Fritzke, Sue 1982-4-3 Orange Santa Ana Mnts; Lower Hot Springs Canyon; Lazy W Road; 2.4km N by road of San Juan Guard Station; 1.4km NNW Juan Rancho Survey Mark 240 Comment
  LA209161  Mimulus aurantiacus var. pubescens M. H.; O. K., H. H. J. April 1921 sn Orange Fullerton and LIttle Bear Lake Comment
  RSA0056605  Mimulus aurantiacus var. pubescens Fred M. Roberts, K. G. Marsh 1987-5-14 3452 Orange Santa Ana Moutains: Upper Trabuco Canyon, Trabuco Canyon Trail, 2.8 km NW Los Pinos Peak. 721 Comment
  UCR102625  Mimulus aurantiacus var. puniceus B. G. Pitzer, M. Georgiady 1997-4-5 3100 Orange San Joaquin Hills, Crystal Cove State Park, portion across highway on the beach, bluffs immediately above beach and adjacent terraces for southeast end of park. 24 Comment
  UCR19078  Mimulus aurantiacus var. puniceus John C. Roos 1965-6-16 s.n. Orange Dana Point Comment
  UCR194549  Mimulus brevipes A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35318 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along fire line/bulldozer cut, c. 1.5 mi. east of Walnut Cyn Reservoir 346 Comment
  RSA726130  Mimulus cardinalis A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33017 Orange Peninsular Range; Santa Ana Mtns.: San Juan Canyon, from Lower San Juan Picnic Area to ca. 1 mile downstream, parallel to Hwy 74 and near Riverside Co. line 366 Comment
  UCR237814  Mimulus cardinalis Dick Newell, Judy Booth 2012-7-15 281 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, on Maple Springs Road 0.84 mi. NE of Maple Springs gate 638 Comment
  RSA435530  Mimulus cardinalis Albert J. Perkins 1912-09 s.n. Orange Bank of stream East Orange Co. Comment
  RSA285708  Mimulus clevelandii D. C. Michener 1982-5-24 4042 Orange Main divide truck route, 5.9 miles north of El Cariso Comment
  RSA7634  Mimulus clevelandii Carl B. Wolf 1933-11 20009 Orange Trabuco Canyon, so wall, opposite the Trabuco truck trail. Comment
  UCSC000866  Mimulus clevelandii Peter Kamb 1948-6-19 1102 Orange Holy Jim Canyon, Santa Ana Mts. 610 Comment
  RSA769077  Mimulus guttatus Minor Warne 1934-04 s.n. Orange Laguna Hills Comment
  RSA769078  Mimulus guttatus L. C. Hull 1934-3-7 s.n. Orange Laguna Hills Comment
  RSA790705  Mimulus guttatus W. Blanchard 1932-5-1 s.n. Orange Santiago Canyon. PR8. Comment
  UCR174021  Mimulus guttatus A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33012 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
  UCR193318  Mimulus guttatus A. C. Sanders, T. B. Salvato 2008-5-13 35387 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
  POM49742  Mimulus pilosus L. R. Abrams 1901-6-13 1759 Orange Laguna, San Joaquin Hills. Comment
  CDA41824  Mimulus puniceus Pope & Hill 1957-4-9 s.n. Orange Irvine Ranch. 0 Comment
  CSUSB1909  Mimulus puniceus Mike Simmons 1975-5-28 Orange Highway 5, 2 miles west of Laguna Canyon Road 60 Comment
  POM6381  Mirabilis laevis var. crassifolia P. A. Munz, L. T. Street, G. Williams 1919-5-3 2672 Orange Santa Ana River Canyon. Comment
  RSA276  Mirabilis laevis var. crassifolia J. T. Howell 1927-6-21 176 Orange Near ranch houses, Rancho Santa Ana. 152 Comment
  RSA465233  Mirabilis laevis var. crassifolia Albert J. Perkins 1914-3-14 s.n. Orange Santa Ana; near Coward s Cove. Comment
  CDA3375  Mollugo verticillata G. D. Barbe 1973-8-9 1695 a Orange Bordier s Nursery, 7231 Irvine Blvd., Santa Ana (Tustin). 0 Comment
  POM1190  Monanthochloe littoralis D. L. Crawford 1928-07 s.n. Orange Abalon Pt. Comment
  CAS-BOT-BC219927  Monardella breweri subsp. lanceolata L. R. Abrams 1901-7-13 1788 Orange San Joaquin Hills Comment
  SEINET9297241  Monardella hypoleuca Unknown 2008-7-16 35845 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago, Dripping Springs off Limestone Canyon, c. 7.5 mi ESE of Tustin. Spring falling from 30 ft. cliffs forming a shaded bowl, with large pool at foot; forest of Quercus agrifolia and Platanus racemosa, with Sambucus mexicana, Rubus ursinus, Solanum douglasii, Heteromeles arbutifolia, RIbes malvaceum, R. speciosum, Rosa californica, Keckiella cordifolia, etc. Locally common rhizomatous perennial on dry slop in open brush, c. 100 m below the spring, between access road and stream. Comment
  RSA0005461  Monardella hypoleuca J. T. Howell 1928-7-10 1094 Orange Black Star Canyon, Santa Ana Mts. 305 Comment
  RSA0013358  Monardella hypoleuca subsp. intermedia A. C. Sanders, Fred M. Roberts 2008-7-3 35683 Orange Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor 365 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
  UCR158808  Monardella hypoleuca subsp. intermedia A. C. Sanders, Mark A. Elvin 2005-9-2 31607 Orange Santa Ana Mtns., upper Holy Jim Canyon, a major tributary of Trabuco Canyon, along the trail in the switchbacks 820 Comment
  UCR158811  Monardella hypoleuca subsp. intermedia A. C. Sanders, Mark A. Elvin 2005-9-2 31609 Orange Santa Ana Mtns., upper Holy Jim Canyon, a major tributary of Trabuco Canyon, along the trail in the switchbacks 970 Comment
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Aug 17 2012
  UCD19273  Monardella hypoleuca subsp. lanata John F. Sorenson 1989-7-1 s.n. Orange Santa Ana Mtns, ridge on north side of Modjeska Peak. Comment
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Jan 7 2018
  IRVC27048  Monardella viminea Mark A. Elvin 2005-2-8 3989 Orange UCI Arboretum Southern Coastal 15 Comment
  UC150049  Monolepis nuttalliana LeRoy Abrams 1903-4-18 3267 Orange Trabuco Arroyo near Capistrano; Trabuco Arroy Comment
  CAS-BOT-BC263362  Muhlenbergia asperifolia John Thomas Howell 1927-7-21 2812 Orange Santa Ana River bottom, Santa Ana Canyon 152 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
  RSA562732  Muhlenbergia microsperma Steve Boyd, Timothy S. Ross 1992-5-19 7448 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
  RSA790096  Muhlenbergia microsperma R. E. Riefner Jr. 2011-8-16 11 -99 Orange Newport Beach, Orange County Parks and Recreation lands, along Newport Coast Drive, between Vista Ridge Rd. & Alteza Rd. 281 Comment
  UCR190991  Muhlenbergia microsperma A. C. Sanders, Fred M. Roberts 2008-4-22 35009 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
  UCSB48056  Muilla maritima Roberts, Fred 1982-4-3 Orange Dana Point: hills, 1.0km N Dana Hills High School; 1.9km W Marco Forster Junior High School 100 Comment
  CAS-BOT-BC523924  Nama stenocarpa D. E. Bramlet 2002-4-14 3269 Orange Laguna Lakes 112 Comment
  UCR247878  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
  UCR266347  Nama stenocarpa D. E. Bramlet 2002-4-14 3269 Orange Laguna Lakes 113 Comment
  RSA680735  Nassella lepida Scott D. White 2003-3-21 s.n. Orange Santa Ana Mountain Foothills: Rancho Mission Viejo. East-facing slopes above an unnamed tributary to San Juan Creek. 122 Comment
  RSA732053  Nassella lepida A. C. Sanders, Fred M. Roberts 2008-3-25 34523 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  UCR230830  Nemacaulis denudata var. denudata Dick Newell 2011-6-17 176 Orange South Coast, Bolsa Chica Beach, Pacific Coast Hwy near Santa Ana River 5 Comment
  UCR248994  Nemacaulis denudata var. denudata Elizabeth A. Kempton 2006-5-5 304 Orange South Coast, Pacific Coast Hwy (Hwy 1), near entrance to Bolsa Chica State Beach, outside of ecological park boundary 0 Comment
  RSA704834  Nemophila menziesii Francis Battey s.n. Orange Laguna Hills. Comment
  RSA0051320  Nemophila menziesii Ophelia Frost 1932-3-28 s.n. Orange 2 miles NW of H.B. Comment
  RSA0060642  Nephrolepis cordifolia Richard E. Riefner 2011-8-25 11 -120 Orange City of Laguna Beach, Aliso Beach County Park, bluff ca. 0.15 mi. SE of Aliso Way, NW ca. 0.25 mi. of West St. 10 Comment
  IRVC147  Nephrolepis cordifolia Polly Brecht 1965-5-7 HS 541 Orange Newport Beach; Cherry Tree Lane. Southern Coastal Comment
  IRVC157  Nephrolepis exaltata var. bostoniensis Randy Acevedo 1965-5-5 HS 533 Orange Newport Beach; East Bluff. Southern Coastal Comment
  HSC21283  Nicotiana glauca D. W. Snell 1964-3-24 10 Orange 1 mi. E of Brea, N of Birch St. 120 Comment
  RSA503158  Nicotiana glauca Gary D. Wallace, G. Cromwell 1966-4-16 452 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
  UC729955  Nitrophila occidentalis Carl B. Wolf 1932-6-28 3805 Orange edge of field on Bixby Ave. Bryant Ranch; E of SW corner of NW40 of NW160 91 Comment
  RSA232073  Nolina cismontana C. W. Tilforth 1972-8-20 623 Orange Along County Rd. S19, between Cooks corner and O Neil Park Comment
  SD121705  Nolina cismontana James C. Dice, Thomas Oberbauer 1986-5-3 650 Orange Santa Ana Mountains, 0.2 km west of the community of Trabuco Canyon and ca. 1 km east of O'Neill Regional Park. Locally common of east-facing slope. 365 Comment
  RSA0051415  Nolina parryi R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49684 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. 457 Comment
  SD247531  Nolina parryi R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49684 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. 456 Comment
  RSA797353  Oenothera bistorta D. M. McF 1956-4-11 8 Orange Moulton Ranch 152 Comment
  RSA752093  Oenothera contorta Norland 1929-4-2 45 Orange Cypress Comment
  RSA733637  Oenothera dentata L. C. Hull 1934-4-8 s.n. Orange Laguna Hills. Comment
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Jun 24 2020
  RSA733638  Oenothera dentata Minor Warne 1934-03 s.n. Orange Near El Toro Comment
  CDA38146  Oenothera elata Mackessy & Patrick 1957-6-27 s.n. Orange Santa Ana River. 0 Comment
  RSA38442  Oenothera elata subsp. hirsutissima P. A. Munz 1947-9-10 12133 Orange Edge of garden in rover nottom, Rancho Santa Ana, Santa Ana River Canyon. 122 Comment
  RSA698248  Oenothera pallida Kenneth Beard s.n. Orange Santa Ana riverbank Comment
  UC1005020  Oenothera xenogaura E. Johnson 1940-8-15 Orange 1.5 mi n of Placentia (Klokke Estate); Klokke Estate Comment
  RSA562725  Olea europaea Steve Boyd 1992-5-20 7461 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
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Feb 4 2016
  POM219209  Oligomeris linifolia L. M. Booth 1931-5-24 1097 Orange Bluff top N Newport Bay 8 Comment
  POM317734  Opuntia X occidentalis David Walkington 1963-5-17 167 Orange Above intersection of Dana Cove Park rd. and Green Lantern Dr., continuous slope with Dana Cove Park Rd. Dana Point. 61 Comment
  RSA727266  Opuntia dejecta R. E. Riefner 2006-7-23 06 -312 Orange South Coast: Newport Beach (city), north shore of Upper Newport Bay, west c. 0.25 mi. from intersection of Bayview Way and Bayview Place 11 Comment
  POM285352  Opuntia littoralis Lyman Benson 1955-10-17 15596 Orange Moulton Ranch just west of the summit east of Laguna Beach. 152 Comment
  UCR196298  Opuntia littoralis A. C. Sanders, T. B. Salvato 2008-5-13 35376 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Canyon above (S of) mouth of Hangman Tree Canyon, just below Modjeska Canyon confluence 366 Comment
  CAS-BOT-BC56865  Opuntia oricola B. D. Stark 1933-1-17 4513 Orange Field redacted by CAS, contact the data manager for more information 152 Comment
  CAS-BOT-BC58075  Opuntia vaseyi John Thomas Howell 1927-6-22 2574 Orange Field redacted by CAS, contact the data manager for more information 152 Comment
  POM317769  Opuntia vaseyi David Walkington 1963-9-13 217 Orange Above intersection of Dana Cove Park rd. and Green Lantern Dr., continuous slope with Dana Cove Park Rd. Dana Point. 61 Comment
  CAS-BOT-BC355775  Osmadenia tenella L. R. Abrams 1901-6-16 1789 Orange Trabuco Canon [Canyon] Comment
  CAS-BOT-BC355777  Osmadenia tenella Helen D. Geis 1902-1-1 s.n. Orange Santiago Creek Comment
  SEINET3863999  Osmadenia tenella G. D. Carr 1971-7-14 585 Orange 2.5 mi NE of San Juan Capistrano on Hwy 74.; 0 69 Comment
  UCSB48382  Osmadenia tenella Roberts, Jr., Fred 1982-5-22 Orange Laguna Niguel; Niguel Hill, near end of Pacific Island Road, 1.6 km. ENE Aliso Peak 295 Comment
  UCR76185  Osmorhiza brachypoda B. G. Pitzer, Stu Hemstreet 1992-5-27 1951 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
  RSA782192  Osteospermum fruticosum Mark A. Elvin 2003-2-23 2315 Orange Irvine, San Joaquin Marsh along the berm of San Diego Creek 3 Comment
  POM353433  Oxalis albicans subsp. californica M. B. Dunkle 1934-2-19 3837 Orange San Juan Canyon, 366 Comment
  RSA2071  Oxalis californica Carl B. Wolf 1931-3-6 1858 Orange Trabuco Canyon, 1.5 mile below Trabuco Camp Grounds 549 Comment
  SEINET3347204 Image available Oxalis cernua J. R. Glen 1957-5-3 Orange .5 miles from the San Bernardino County line. 3 miles east of Olinda along Carbon Canyon road. 201 Comment
  HSC88192  Paeonia brownii R. E. Nelson, T. Baumann, Kondratieff, T. Sargent 1988-1-12 5117 Orange San Juan Creek at the Lower San Juan Campground, Cleveland National Forest. 366 Comment
  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
  SBBG104117  Paeonia californica B. Pitzer, S. Hemstreet 1992-5-21 1937 Orange St Hwy 74, 1 mi uphill from 2000 ft marker and to the left ca. 1 mi on old paved rd 762 Comment
  UC718282  Paeonia californica Carl B. Wolf 1936-6-17 7949 Orange along Ortega Hwy 0.6 mi below San Juan Hot Springs; Santa Ana Mts. 182 Comment
  RSA797015  Pallenis maritima R. E. Riefner Jr. 2010-1-2 10 -3 Orange City of Laguna Beach, Moss Point, vicinity of Ocean Way at Ruby St. 2 Comment
  CDA2142  Panicum virgatum R. E. Riefner Jr. 2006-9-19 06 -439 Orange City of Anaheim. North side of Santa Ana River channel, Santa Ana Canyon, West (downstream) ca. 1.25 miles from Green River Golf Course. Comment
  RSA724122  Panicum virgatum R. E. Riefner 2006-9-19 6 -439 Orange City of Anaheim, N side of Santa Ana River channel, Santa Ana Canyon, W (downstream) ca. 1.25 mi from Green River Golf Course. 118 Comment
  RSA594803  Papaver californicum Fred M. Roberts, Sandy Leatherman, B. Leatherman 1994-4-24 4920 Orange Santa Ana Mountains: San Juan Canyon, south side of CA route 74, 1 kilometers NNW San Juan Survey Mark. 268 Comment
  UC1971218  Parapholis incurva Louis C. Wheeler 1947-5-3 6475 Orange Newport Bay. Comment
  RSA548851  Parapholis incurva Fred M. Roberts 1988-5-20 3974 Orange Irvine; University of CA, Irvine, near Farm School, 1.4km ESE campus center., UTM 3722500m N, 423200mE 46 Comment
  RSA717518  Parietaria judaica R. E. Riefner 2006-5-21 6 -199 Orange City of Huntington Beach, Beach Blvd. at MacDonald St. 6 Comment
  UCR210364  Parthenocissus T. B. Salvato, Billy Deane 2006-10-16 1924 Orange South Coast, Irvine, San Diego Creek flood control channel, between Michelson Drive and the 405 FWY 12 Comment
  RSA0026252  Parthenocissus vitacea Fred M. Roberts 2013-6-12 7798 Orange Peninsular Ranges: Santa Ana Mtns: Lower Silverado Canyon along Silverado Creek on north side of Silverado Canyon Road, 0.6 kilometers ENE Silverado School and 1.4 kilometers up stream Black Star Road Crossing. 320 Comment
  CDA23137  Paspalum dilatatum Mark A. Elvin, D. G. Kelch 2006-12-9 5317 Orange Southern Coastal; Irvine; San Diego Creek, edge of San Joaquin Marsh, beside University Drive, between Campus Drive and Highway 73. Comment
  UCR174227  Paspalum dilatatum A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33031 Orange Peninsular Range; Santa Ana Mtns., San Juan Canyon, from Lower San Juan Picnic Area to c. 1 mile downstream, parallel to Hwy 74 and near Riverside Co. line 396 Comment
  POM301692  Paspalum dilatatum J. C. Roos 1942-6-20 990 Orange Anaheim, Telegraph Road, east of Los Angeles Comment
  RSA710413  Paspalum distichum Fred M. Roberts 2005-10-3 6301 Orange San Juan Capistrano: San Juan Creek wash, La Novia Road Bridge to 100m E of bridge, 1.4km E Mission San Juan Capistrano, 27 Comment
  UCSB47945  Paspalum distichum Roberts, Dar 1980-5-4 Orange Camino Capistrano Rd. below bridge. (Crown Valley Pkwy) 30 Comment
  RSA766071  Paspalum pubiflorum R. E. Riefner Jr. 2009-11-11 09 -237 Orange City of Mission Viejo, Oso Creek, ca. 1.4 mi N of Paseo De Colinas on Camino Capistrano. Rip-rap rocks near a waste water treatment plant. 88 Comment
  RSA733052  Paspalum vaginatum R. E. Riefner 2003-10-14 03 -455 Orange City of San Juan Capistrano, Trabuco Creek, N side of Del Obispo St. at paseo Adelento St. 27 Comment
  RSA733138  Paspalum vaginatum R. E. Riefner 2007-10-17 7 -439 Orange City of Dana Point, Dana Point Harbor, Dana Point Harbor Dr. near Puerto Pl. 10 Comment
  RSA766062  Paspalum vaginatum R. E. Riefner Jr. 2008-7-29 08 -256 Orange City of Dana Point, near Ritz-Carlton Hotel, Salt Creek Beach area. 1 Comment
  RSA769299  Paspalum vaginatum R. E. Riefner Jr., K. Campbell 2008-8-31 80 -267 Orange City of Irvine, tidal portion of San Diego Creek, Immediately east of Hwy. 73 overpass. 1 Comment
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Dec 14 2012
  SBBG125948  Paspalum vaginatum R. E. Riefner Jr., K. Campbell 2008-8-31 08 -267 Orange tidal portion of San Diego Crk, immediately E of Hwy 73 overpass; City of Irvine 1 Comment
  UC2061661  Paspalum vaginatum R. E. Riefner Jr. 2008-7-29 08 -256 Orange City of of Dana Point, near Ritz-Car;ton Hotel, Salt Creek Beach area. Comment
  UCR204899  Paspalum vaginatum R. E. Riefner Jr. 2003-10-14 03- 456 Orange South Coast, city of San Juan Capistrano, Trabuco Creek, south side of Del Obispo Street at Paseo Adelento Street 26 Comment
  RSA588784  Pectocarya linearis subsp. ferocula Fred M. Roberts, D. Bontrager 1990-4-18 4578 Orange Rancho Mission Viejo: Chiquita Rdge, west of Canada Chiquita, 2.0 km N Median Rancho Survey Marker 152 Comment
  UCSB56507  Pectocarya linearis subsp. ferocula Marsh, G. 1978-3-17 Orange U.C. Irvine Ecological Preserve: in swale, near hilltop of Hill #3 85 Comment
  UCSB15065  Pedicularis densiflora Breedlove, Dennis 1962-3-9 Orange 14.3 miles east of San Juan Capistrano on State 74 335 Comment
  RSA747624  Pellaea andromedifolia Fred M. Roberts 2008-4-16 6908 Orange Dana Point: Dana Point Headlands, CNLM Preserve, 0.8km W Marine Institute, Dana Point Harbor. 45 Comment
  UC185251  Pellaea andromedifolia Mrs. Carlotta C. Hall 1913-5-27 9407 Orange Santiago Canyon Comment
  SD144154  Pellaea andromedifolia var. andromedifolia Scott D. White 1997-3-28 4835 Orange Above Modjeska Canyon: proposed water tank site. 420 Comment
  CAS-BOT-BC71394  Pellaea mucronata Ira L. Wiggins 1966-2-4 20421 Orange on floor of Trabuco Canyon, about 1/2 mi. above canyon mouth Comment
  RSA7472  Pellaea mucronata var. mucronata C. B. Wolf 1933-8-24 5396 Orange Summit of Santiago Peak, Santa Ana Mountains 1731 Comment
  IRVC14100  Pellaea mucronata var. mucronata K. Marvosh 1966-5-1 Orange Harding Canyon, 1mi up canyon, 400ft up on slope; dry rocky slope in chaparral and coastal sage scrub. Santa Ana Mountains Comment
  RSA328946  Pennisetum ciliare var. ciliare J. West 1983-10-8 s.n. Orange City of Orange. Comment
  SD175783  Pennisetum setaceum D. G. Kelch 2006-12-9 06 564 Orange Irvine, University Dr. along tidal Creek just east of I-73. Comment
  RSA610216  Pennisetum setaceum Fred M. Roberts 1997-4-19 5013 Orange San Juan Canyon along San Juan Creek at CA. Rte. 74 bridge just east of San Juan Hot Springs, 0.8km SSE Juan Rancho Surbey Mark 240 Comment
  CDA20319  Pennisetum villosum R. Tiffer 2004-11-9 PDR 1367133 Orange Anaheim. 1750 S. Douglass Road. Lawn weed. 0 Comment
  RSA0054891  Penstemon cordifolius Keith E. Hoffmaster 1941-7-14 1251 Orange At Blanding Nursery, Santa Ana. Comment
  CAS-BOT-BC330340  Pentachaeta aurea Le Roy Abrams 1903-4-17 3259 Orange Near El Toro Comment
  RSA697045  Pentachaeta aurea Keith E. Hoffmaster 1935-3-17 s.n. Orange Near El Toro (Trabuco rd.) Comment
  RSA580937  Pentachaeta aurea subsp. allenii D. E. Bramlet 1994-4-1 2367 Orange San Joaquin Hills, Camarillo Canyon area, some 427m W of Laguna Canyon Rd. and 671m N of Camarillo canyon 140 Comment
  RSA687393  Pentagramma triangularis subsp. triangularis May N. Ackley 1925-05 83 Orange Silverado Canyon Comment
  UCSB62261  Pentagramma triangularis subsp. triangularis Keifer, L. 1963-11-17 Orange Laguna Canyon, rocks north of road from Laguna Beach to Irvine, ca. 1/2 mile no. of El Toro turnoff 152 Comment
  RSA743385  Pentagramma triangularis subsp. viscosa Fred M. Roberts 2008-5-27 7009 Orange Dana Point: Dana Point Headlands, CNLM Preserve, 0.8km W Marine Institute, Dana Point Harbor. 45 Comment
  UC218598  Pentagramma viscosa I. M. Johnston 1918-5-4 1926 Orange hills back of Laguna Beach 152 Comment
  LA204537  Peritoma arborea A. H. Lange; 1951-4-26 sn Orange Balboa Comment
  SBBG16546  Peritoma arborea E. B. Carlton 1961-9-3 C 6 Orange E of Hidden Valley Rd, ca. 1 mi from Brdway and S Coast Blvd, Laguna Beach Comment
  CAS-BOT-BC77510  Peritoma arborea var. arborea Carl B. Wolf 1932-3-8 2684 Orange 1/2 mi. No. of Corona Del Mar, borders of Newport Bay 7 Comment
  SBBG61477  Persicaria amphibia J. Ewan 1931-7-31 Orange Westfall near Huntington Beach Comment
  CAS-BOT-BC418842  Persicaria hydropiperoides Le Roy Abrams 1901-6-11 1754 Orange New River near Long Beach Comment
  POM4186  Petunia parviflora L. R. Abrams 1901-6-13 1775 Orange Laguna Comment
  UCR158041  Petunia parviflora Adrian Wolf 1998-6-23 359 Orange South Coast, northernmost of the Laguna Lakes in Laguna Canyon, southern edge of lake on west side of Laguna Canyon Rd. 119 Comment
  UCR220294  Petunia parviflora Robert Hamilton 1998-6-3 s.n. Orange South Coast, Fountain Valley, Mile Square Park, NE corner 'hobby area 14 Comment
  RSA588659  Phacelia brachyloba Fred M. Roberts, Carol A. Roberts 1990-5-23 4648 Orange West Fork, Upper Long Canyon, near Main Divide Truck Trail, 4.5km SE Los Pinos Peak. 756 Comment
  RSA263669  Phacelia cicutaria var. hispida E. W. Lathrop 1974-6-27 7430 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  RSA595  Phacelia cicutaria var. hispida J. T. Howell 1927-6-5 35 Orange Rancho Santa Ana, near east boundary. 152 Comment
  UC1280311  Phacelia cicutaria var. hispida John M. Tucker 1941-5-30 257 Orange roadside on Ortega Hwy 2-3 mi e western boundary of National Forest; Cleveland National Forest Comment
  RSA699147  Phacelia cicutaria var. hubbyi Helen Stanley s.n. Orange Limestone Canyon. Comment
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Jun 12 2019
  UCR239654  Phacelia ciliata Fred M. Roberts 2012-4-27 7543 Orange Lomas de Santiago, Loma Ridge, west of SR 241, tributary to 'Las Flores' Canyon, 1.5 km west-southwest of Irvine Lake Park Campground and 1.1 km east of Orange County Emergency Operations Center, Hill 1311 311 Comment
  RSA708371  Phacelia curvipes Fred M. Roberts, Robert L. Allen, Chris Barnhill, Nancy Hatfield 2005-5-30 6239 Orange Modjeska Peak summit, c.a. 60m south of highest point. 1675 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
  RSA3175  Phacelia distans Carl B. Wolf 1932-3-8 2688 Orange 1/2 mile N of Corona del Mar, Newport Bay. 8 Comment
  RSA606  Phacelia distans J. T. Howell 1928-3-18 892 Orange Rancho Santa Ana, Botanic Garden. 152 Comment
  RSA647950  Phacelia distans Ken Greby 1985-4-18 18 Orange alongside Laguna Canyon Rd. approx. 1.5 km. NE from El Toro Rd. 46 Comment
  RSA699772  Phacelia distans Keith E. Hoffmaster 1927-4-8 s.n. Orange Santa Ana Mountains. Comment
  UC1075899  Phacelia distans E. K. Balls 1955-4-4 20425 Orange just n Dana Pt. (off Hwy 101 Alt.) 45 Comment
  UCR223416  Phacelia distans Dick Newell, Don Millar 2011-2-8 049 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, upper Agua Chinon wash, along Limestone Canyon Rd. 398 Comment
  RSA759261  Phacelia grandiflora Robt. Allen, Vicky Malton, Raul Murillo Jr. 2008-5-11 s.n. Orange Lomas de Santiago, Whiting Ranch Wilderness Park. Along Santiago Ranch Road. 436 Comment
  JEPS1176  Phacelia minor Mary Alice King March 1907 Orange Anaheim plains 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
  UCR192733  Phacelia minor A. C. Sanders, Fred M. Roberts 2008-5-6 35233 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hicks Canyon, just above tollway (Hwy 241) crossing on Irvine Haul Rd., near debris basin 216 Comment
  RSA738987  Phacelia minor Aileen Adams 1932-5-9 s.n. Orange On a slope N Trabuca Comment
  JEPS1324  Phacelia parryi Alice King March 1908 Orange Santiago Creek Santa Ana Mts. Comment
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1
  UCR220302  Phacelia parryi Dick Newell, Don Millar, Jutta Burger 2010-3-16 010 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Agua Chinon Wash 250 m north of Hwy 241 toll road 201 Comment
  RSA0125892  Phacelia ramosissima Fred M. Roberts Jr. 2012-5-9 7554 Orange Santa Ana Mountains: Lake Forest. along Serrano Creek, hiking trail, 0.7 km SSW intersection of Commerce Centre and Dimension Drives. 152 Comment
  RSA739553  Phacelia ramosissima A. C. Sanders, Fred M. Roberts 2008-7-3 35665 Orange Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor 365 Comment
  UCR193556  Phacelia ramosissima A. C. Sanders, Fred M. Roberts 2008-7-3 35665 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor 415 Comment
  CAS-BOT-BC145005  Phacelia ramosissima var. latifolia John Thomas Howell 1927-6-21 2567 Orange Arroyo in hills on north side of Santa Ana [Canon] Canyon 152 Comment
  RSA428287A  Phacelia ramosissima var. latifolia F. R. Fosberg 1931-6-21 S- 5135 Orange Silverado Canyon, Santa Ana Mts. Comment
  RSA650512  Phacelia tanacetifolia Grant Garland 1948-5-16 s.n. Orange Found off highway 101 below Santa Ana 30 Comment
  UCR154352  Phalaris canariensis Mark A. Elvin 2004-5-2 3422 Orange Southern Coastal, Irvine: San Joaquin Freshwater Marsh, near Campus and University Drives; 1.7 km (air) NNW UC Irvine campus center 3 Comment
  UCR193585  Phalaris minor A. C. Sanders, T. B. Salvato 2008-5-13 35367 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
  POM263105  Phalaris minor J. C. Roos 1937-5-10 431 Orange Tustin Comment
  RSA0011626  Phalaris minor Rankin s.n. Orange Costa Mesa. Comment
  RSA5942  Phalaris minor C. B. Wolf 1932-7-7 3854 Orange Bixby Ave. 0.3 mile east of Los Alamitos Blvd. (250 ft E of SW corner of NE/4 of NE/4 of Sec 31 T4S R11W) 8 Comment
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Apr 10 2014
  RSA697734  Phalaris minor Anonymous s.n. Orange Santa Ana. Comment
  RSA708439  Phalaris minor Mark Elvin 2004-5-2 3422 Orange Southern Coastal, Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7 km (air) NNW of UC Irvine Campus center. 3 Comment
  IRVC21804  Phalaris paradoxa B. L. Parry, Fred M. Roberts 1985-5-21 141 Orange San joaquin Hills: Central Moro Cyn, Crystal Cove St Pk, 3.5km S of Signal Peak, 1.7km NE of El Morro Sch. Southern Coastal 20 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
  RSA781939  Phoenix canariensis Mark A. Elvin 2003-2-23 2318 Orange Irvine, San Joaquin Marsh along the berm of San Diego Creek 3 Comment
  RSA296796  Pholistoma auritum Lyman Benson 1947-4-27 12339 Orange Carbon Canyon. Chino-Puente Hills; Pacific Slope Drainage Area. 244 Comment
  UCSB44692  Pholistoma auritum Hibbard, Doug 1977-3-4 Orange Off the south side of Back Bay Rd., 0.7 miles from its crossing with Jamboree Blvd., New Port Beach 4 Comment
  RSA734206  Phoradendron macrophyllum Keith E. Hoffmaster 1934-4-22 188 Orange Santa Ana Mountains Comment
  SEINET10739258  Phoradendron macrophyllum Andrew Townesmith, Karen M. Meyer; Tracy Scott 2007-3-11 Townesmith 675 Orange Cleveland National Forest. Off Long Canyon Road, NW of intersection with Route 74. 752 Comment
  RSA384023  Phyllospadix torreyi Anstruther Davidson 1910-6-28 2493 Orange Balboa Beach. Comment
  POM1013  Phyllospadix torreyi Daniel J. Crawford 1916-7-29 s.n. Orange Abalone Point. Comment
  RSA0127409  Physalis crassifolia Fred M. Roberts 2016-5-25 8062 Orange Irvine: San Joaquin Hills, Turtle Rock Community, tributary to Shady Canyon, 1.2 km SE summit of French Hill between Alejo and Tradewind Roads. 107 Comment
  RSA38354  Physalis philadelphica Philip A. Munz 1946-11-17 11607 Orange spontaneous weed near Administration Building, Rancho Santa Ana Botanic Garden. Santa Ana River Canyon. 198 Comment
  UCR281509  Phytolacca icosandra Mitch Provance, Jeremiah George 2017-3-20 317- 101 Orange West Coyote Hills, Fullerton, vicinity of Utility Access Road W of Gilbert Street and N of Rosecrans Ave., on land previously occupied by oil fields. 131 Comment
  IRVC874  Picris echioides R. Hobson 1965-4-10 Orange Santa Ana Heights, 2431 Mesa Dr. Southern Coastal Comment
  POM6223  Picris echioides D. L. Crawford 1915-09 505 Orange Huntington Beach. Comment
  RSA472042  Picris echioides James Henrickson 1970-7-25 5037 Orange 2.5 miles NE of Huntington beach, 1 mile SE of Warner Ave. on sandy slope of E. Pacific Coast Hwy. at border of Bolsa Chica Salt Marsh. 0 Comment
  RSA562823  Pinus Steve Boyd, T. S. Ross 1992-5-20 7467 A 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
  CAS-BOT-BC73333  Pinus attenuata Carl B. Wolf 1934-12-21 6260 Orange N.E. of Sugarloaf Peak (Plesants Pk.), along Main St. Trail, Santa Ana Mts. 1158 Comment
  MACF019850  Pinus attenuata Doug Stavert 1975-4-27 Orange Pleasants Peak, Santa Ana Mtns. 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
  HSC104216  Pinus coulteri A. C. Sanders, T. B. Salvato, Kent Beaman 2011-11-3 39932 Orange Peninsular Range; Santa Ana Mtns.: near Pleasants Peak along the Main Divide Truck Trail 1152 Comment
  OBI7737  Pinus coulteri Carl B. Wolf, P. C. Everett 1939-1-10 10008 Orange Santa Ana Botanic Gardens cultivated. Old nursery outside seed bed Comment
  RSA0054802  Pinus coulteri Keith E. Hoffmaster 1931-1-1 20 Orange Santa Ana Mts. Comment
  UCR186587  Pinus halepensis Robert DeRuff 1995-9-24 240 Orange Southern Coast, Newport Beach, Newport Back Bay, Eastbluff 6 Comment
  MACF017433  Pinus taeda Trudy R. Ericson 1974-6-13 167 Orange Little Cypress Road about 1 mi. south of Little Cypress Bayou Comment
  POM6289  Piperia cooperi Philip A. Munz, L. T. Street, G. Williams 1919-5-3 2638 Orange Santa Ana River Canyon. Comment
  SEINET5642640  Pistacia atlantica Shelby J. Wood 2013-3-9 10 Orange Huntington Beach, Central Park.; 0 Comment
  CLARK-A1528-3590  Pityrogramma triangularis var. viscosa John C. Roos 1937-2-23 1316 Orange Laguna Hills Comment
  UCR223980  Plagiobothrys collinus Dick Newell, Don Millar 2011-2-1 095 Orange South Coast, Shady Canyon, SSE of Irvine, 0.1 mile east of the easterly end of Canyon Creek Rd. 175 Comment
  IRVC9331  Plagiobothrys collinus var. californicus C. Leavell 1966-3-16 59 Orange El Toro Rd. near Post Office; in open field. El Toro Comment
  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
  RSA695818  Plagiobothrys collinus var. californicus R. H. McArthur 1934-3-10 s.n. Orange Tomato Springs Irvine Ranch Comment
  UCSB52464  Plagiobothrys collinus var. fulvescens Roberts, Fred 1982-4-2 Orange Laguna Niguel; hills, 3.5 km. ESE Aliso Peak; 3.2 km. ESE Alicia Fire Station, N of Del Avion 100 Comment
  SBBG93236  Plagiobothrys nothofulvus J. Ingram 1960-3-29 258 Orange 3 mi above O'Neill Park, Trabuco Cyn Comment
  UC1212094  Plagiobothrys nothofulvus D. Bates 1960-4-2 2308 Orange Route 74 e San Juan Capistrano Comment
  UC1929780  Plagiobothrys nothofulvus Scott D. White, Amanda Duchardt 2003-3-27 8858 Orange SANTA ANA MOUNTAIN FOOTHILLS: Canyon bottom and west facing slopes above Canada Gobernadora. Comment
  UCR191013  Plagiobothrys nothofulvus A. C. Sanders, Fred M. Roberts 2008-4-22 35030 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Limestone Canyon, c. 2 miles SW of Silverado 396 Comment
  POM98152  Plagiobothrys nothofulvus P. A. Munz s.n. Orange Santa Ana Mountains, Silverado Canyon 549 Comment
  RSA0045607  Plagiobothrys nothofulvus Keith E. Hoffmaster 1935-2-9 840 Orange Santa Ana Mts., El Toro. Comment
  RSA666092  Planodes virginica Fred M. Roberts, Michelle Lee, Kristen Szabo 2001-4-13 5430 Orange Rancho Mission Viejo: Chiquita Ridge, 0.3km WNW Median Rancho Survey Marker. PCR Vernal Pool 4. 226 Comment
  POM8784  Plantago erecta P. A. Munz, R. D. Harwood 1920-4-24 3753 Orange Santa Ana Mts, Sierra [Freemont] Canyon 366 Comment
  RSA401984A  Plantago erecta Albert J. Perkins 1921-04 s.n. Orange Mesa near Arch Beach, Santa Ana. Comment
  RSA523560  Plantago erecta L. M. Booth 1932-5-18 1055 Orange Newport Bay Comment
  RSA680562  Plantago erecta Scott D. White 2003-3-21 8814 Orange Santa Ana Mountain Foothills: Rancho Mission Viejo. East-facing slopes above an unnamed tributary to San Juan Creek. 122 Comment
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Oct 4 2010
  RSA698374  Plantago erecta Jeanne Paxton 1934-3-11 s.n. Orange Sugar Loaf Canyon - Arch Beach. Comment
  UCR209377  Plantago erecta Fred M. Roberts, Linda Farley 2008-3-28 6834 Orange Santa Ana Mountains, Upper Weir Canyon, Irvine Ranch Conservancy, 3.3 km east-northeast of Robbers Peak on ridge north of canyon 427 Comment
  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
  SD247681  Plantago erecta subsp. erecta R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49653 Orange Northern Santa Ana Mountains: Coal Canyon (NW of Sierra Peak). Comment
  CLARK-A1528-3428  Plantago indica John C. Roos 1957-7-29 6657 Orange Newport Beach Comment
  RSA0054909  Plantago lanceolata Lena Danner 1932-5-9 s.n. Orange Along Villa Park Road, Villa Park. Comment
  RSA603370  Plantago major Scott D. White, B. Leatherman 1997-6-12 5334 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
  RSA0028737  Plantago pusilla R. E. Riefner 2000-3-14 20 -135 Orange NCCP North Ranch Policy Plan Area. Along dirt road running N from Baker Cyn.Road. 305 Comment
  IRVC28915  Plantago rhodosperma Fred M. Roberts, Karlin G. Marsh 1988-4-25 3931 Orange San Joaquin Hills: E flank Pelican Hill, 0.9km SE summit. Southern Coastal 120 Comment
  RSA703087  Platanus racemosa Fred M. Roberts, Art Davenport 2003-9-11 6007 Orange Rancho Mission Viejo: Donna O'Neil Land Conservancy, tributary west of Cristianitos Cyn., 1.52 km NNW Sycamore Gate and 250 m W of Cristianitos Road. 152 Comment
  SD234464  Platanus racemosa A. C. Sanders, Fred M. Roberts 2008-7-3 35700 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, along Windy Ridge Rd at wash crossing, 0.95 mi. SE of Walnut Canyon Reservoir (Black Star Canyon 7.5' Q) 242 Comment
  SEINET7779659  Platanus racemosa Unknown 1966-8-22 2390 Orange O'Neill State Park, about 20 miles southeast of Anaheim Comment
  RSA722433  Platystemon californicus L. C. Hull 1934-3-11 s.n. Orange Ortega Highway. Comment
  RSA443847  Platystemon californicus Gordon Marsh, Karlin G. Marsh 1978-3-30 37 Orange Ortega Hwy, S side next to Hwy marker #37, near Conrock entrance. Comment
  CAS-BOT-BC356094  Plecostachys serpyllifolia R. E. Riefner, Jr. 2009-7-18 09 -151 Orange City of Dana Point, beach near Salt Creek, vicinity of Ritz Carlton Resort 2 Comment
  OBI74939  Plecostachys serpyllifolia Unknown 2005-9-9 05 -654 Orange City of Lake Forest Aliso Crk, S side of Portola Pkwya and W of El Toro Rd 225 Comment
  OBI74940  Plecostachys serpyllifolia Unknown 2006-7-26 06 -319 Orange City of Irvine, N side of Irvine Blvd. at SR133 on ramp 64 Comment
  UC2061635  Plecostachys serpyllifolia R. E. Riefner Jr. 2007-3-18 07 -153 Orange City of Newport Beach, Dover Beach, Newport Bay, vicinity of Morning Star Ln. and Polaris Dr. Comment
  UCR230581  Plecostachys serpyllifolia R. E. Riefner Jr. 2011-6-25 11- 71 Orange South Coast, city of Laguna Beach, Woods Cove, vicinity of Ocean Way at Pearl Street 9 Comment
  CDA34952  Plecostachys serpyllifolia R. E. Riefner Jr. 2009-7-18 09 -151 Orange Dana Point; beach near Salt Creek, vicinity of Ritz Carlton Resort. Comment
  RSA751406  Plecostachys serpyllifolia R. E. Riefner Jr. 2007-4-28 07 -190 Orange City of Newport Beach, Dover Beach, vicinity of Morning Star Ln., and Polaris Dr. 8 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
  IRVC29816  Pluchea odorata Mary H. White 2006-9-23 92306 2 Orange San Joaquin Marsh Freshwater Marsh, UC Natural Reserve; SW edge, along San Diego Creek, N of University Drive, E Hwy 73. Southern Coastal 2 Comment
  RSA639704  Pluchea odorata Scott D. White 1998-12-10 720 Orange Brea: Tonner Canyon and adjacent slope, just east of 57 Freeway crossing. 137 Comment
  RSA719408  Pluchea odorata Fred M. Roberts, Robert L. Allen 2006-10-8 6427 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
  SD247604  Pluchea purpurascens R. F. Thorne, E. W. Lathrop and W. Wisura 1977-7-8 49637 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs. Comment
  CAS-BOT-BC326617  Pluchea sericea John Thomas Howell 1927-7-21 2815 Orange Santa Ana River bottom, Santa Ana Canyon 152 Comment
  SD144113  Poa annua Scott D. White 1993-3-5 1115 Orange Tustin, Marine Corps Ait Stn: SE of Red Hill Ave and NE os Barranca, roadsides 14 Comment
  UCR99859  Poa annua Scott D. White 1993-3-5 1129 Orange Tustin. Marine Air Corps Air Station: SE of Red Hill Ave and NE of Barranca 15 Comment
  RSA699308  Poa pratensis Keith E. Hoffmaster 1927-5-30 33 Orange Santa Ana. Comment
  SEINET10791987  Poa scabrella Robert F. Thorne, Earl W. Lathrop 1977-5-18 Thorne 49746 Orange Santa Ana Mountains, summit of Santiago Peak. 1733 Comment
  JEPS111463  Poa secunda subsp. secunda J. B. Anderson 1966-5-3 636 Orange Santa Ana Mountains: Silverado Cny., Modjeska Peak road at 4500 ft. elev., along road cuts Comment
  RSA644981  Pogogyne douglasii subsp. parviflora R. E. Riefner Jr. 2000-4-5 20 -211 Orange North Ranch Policy Plan Area, Main Divide Road, top of Gypsum Canyon, east of Windy Ridge. 518 Comment
  RSA743463  Polycarpon tetraphyllum Fred M. Roberts 2008-7-10 7071 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
  SEINET3086485 Image available Polycarpon tetraphyllum J. Harry Lehr 1975-5-10 1556 Orange Santa Ana Street W. of State College Blvd. Anaheim. Comment
  UCR102030  Polycarpon tetraphyllum B. G. Pitzer 1997-3-25 3027 Orange San Joaquin Hills, Crystal Cove State Park, Pelican Point Area, grassland between Pacific Coast Hwy and the bike trail 30 Comment
  UCR146882  Polycarpon tetraphyllum Kathleen Stockwell 1999-5-30 s.n. Orange South Coast, north of Cristianitos Road, San Clemente 61 Comment
  RSA785454  Polygala cornuta subsp. fishiae A. C. Sanders, T. B. Salvato, Kent Beaman 2011-11-3 39941 Orange near Pleasants Peak along the Main Divide Truck Trail 1143 Comment
  UCR231203  Polygala cornuta subsp. fishiae A. C. Sanders, T. B. Salvato, Kent Beaman 2011-11-3 39941 Orange Peninsular Range; Santa Ana Mtns., near Pleasants Peak along the Main Divide Truck Trail 1143 Comment
  RSA460143  Polygala cornuta var. fishiae Theodore Payne 1917-1 3122 Orange Santiago Canyon. Comment
  RSA588890  Polygala cornuta var. fishiae Fred M. Roberts 1990-6-4 4664 Orange Santa Ana Mountains: Hall Canyon, 1.8 km NNW Mustang Spring at east edge of Flying B Ranch. 421 Comment
  RSA708537  Polygonum arenastrum Fred M. Roberts, Robert L. Allen, Chris Barnhill 2004-8-21 6102 Orange Caspers Wilderness Park, Hot Springs Cyn., Hot Springs Trail, c.a. 0.16km WSW San Juan Ranger Station, north of SR 74. 212 Comment
  RSA743378  Polygonum aviculare Fred M. Roberts 2008-4-9 6858 Orange Dana Point: Dana Point Headlands, CNLM Preserve near Outlook 2, 0.7 km W Marine Institute (Dana Point Harbor). 52 Comment
  SD236380  Polygonum aviculare Jeffrey Ross, R. Zaka 1998-5-2 40 Orange South Coast: North side of San Joaquin hills; William R. Mason Regional Park, near intersection of Yale Ave and University drive. 24 Comment
  UCSB48371  Polygonum aviculare Roberts, Fred 1982-5-22 Orange DANA POINT: jct. of Stone Hill and Selva Rds 1.0km ESE Dana Hills High School; 1.7km SW Marco Forster Junior High School 12 Comment
  CAS-BOT-BC414043  Polygonum aviculare subsp. aviculare Ira L. Wiggins 1966-5-25 20667 Orange Parkway along south side of Nutwood Lane, margin of CSCF campus, Fullerton Comment
  RSA5579  Polygonum aviculare subsp. aviculare Carl B. Wolf 1932-6-28 3763 Orange Bryant Ranch: along western half of north boundary of 40 acre Valencia orange grove at Bryant Ave. and Hansen Road. 9 Comment
  RSA466307  Polygonum coccineum J. Ewan 1931-7-31 4754 Orange Wesefall near Hungtinton Beach. Comment
  RSA466308  Polygonum coccineum Albert J. Perkins 1912-09 s.n. Orange Roadside ditch, Santa Ana. Comment
  RSA0054922  Polygonum lapathifolium Keith E. Hoffmaster 1933-10-1 488 Orange Near Tustin. Comment
  IRVC21327  Polypodium californicum Fred M. Roberts, K. G. Marsh 1984-2-15 1190 Orange Casper's Regional Park: Rancho Carrillo Rd., 4.4km NE Visitors Center; 0.5km ENE Lucas Survey mark. Southern Coastal 415 Comment
  IRVC22502  Polypodium californicum Fred M. Roberts 1985-5-1 1692 Orange Aliso Canyon, 2.1km NNE Aliso Peak, Aliso Viejo 67 Comment
  IRVC24465  Polypodium californicum Fred M. Roberts 1986-2-5 2587 Orange Santa Ana mtns: Lower Hot Springs Canyon, 1.1km NNW Juan Rancho Survey Mk Peninsular Ranges 285 Comment
  IRVC3046  Polypodium californicum A. S. Boughey 1965-3-5 51 Orange Trabuco Canyon. Santa Ana Mountains Comment
  RSA124714  Polypodium californicum E. K. Balls, Percy C. Everett 1957-11-25 22837 Orange Trabuco Canyon 640 Comment
  UCSB62512  Polypodium californicum Kiefer, Lawrence 1963-11-17 Orange Laguna Beach, Aliso Canyon, ca. 100 yards up canyon from Aliso Beach parking area, Hwy 101. 45 Comment
  UCSB62759  Polypodium californicum Kiefer, Lawrence 1963-11-17 Orange Santa Ana Mtns., Trabuco Canyon, vicinity of the public camps, upper part of canyon 762 Comment
  IRVC19905  Polypodium californicum Karlin G. Marsh 1983-6-27 Orange head of Bommer Canyon, Irvine Ranch; in a cave. San Joaquin Hills Comment
  IRVC21768  Polypodium californicum Fred M. Roberts, G. S. Pederson 1984-12-17 1444 Orange canyon, 2.5km NE Median Rancho Survey Mark; 1.4km NW Bench Mark 422, Wagon Wheel Regional Park 190 Comment
  RSA696613  Polypogon interruptus Rankin s.n. Orange Irvine Park Comment
  CLARK-A1528-4839  Polypogon monspeliensis John C. Roos 1949-10-1 4674 Orange Doheney Beach 1-3 Comment
  IRVC15372  Polypogon monspeliensis J. B. Anderson 1966-4-22 607 Orange San Joaquin Hills: Los Trancos Canyon, along dirt road and near spring. Santa Ana Mountains 122 Comment
  IRVC1814  Polypogon monspeliensis Ray Harbour 1965-3-23 s.n. Orange Corona del Mar. southern coastal Comment
  RSA697713  Polypogon monspeliensis Anonymous s.n. Orange Near Orange Co. Park. 793 Comment
  SEINET192612 Image available Polypogon monspeliensis C. B. Wolf 1932-6-13 13 Orange Fullerton; Malvern and Nicholas Avenues. 0 Comment
  UCR96877  Polypogon monspeliensis Scott D. White 1993-4-28 1280 Orange Pacific slope, Tustin Marine Corps Air Station, NW of Peters Canyon Channel, between Moffett Dr. & Warner Comment
  SEINET6654152  Populus balsamifera subsp. trichocarpa R. E. Riefner Jr. 2007-6-12 07 -253 Orange City of San Juan Capistrano, vicinity of Calle Arroyo/Paseo Esteban at San Juan Creek.; 0 152 Comment
  POM360778  Populus fremontii Marcus E. Jones 1930-3-3 26533 Orange Santa Ana Mountains. 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
  CAS-BOT-BC105608  Populus trichocarpa John Thomas Howell 1927-7-21 2809 Orange On edge of marshy place but above water, Santa Ana River bottom, Santa Ana Canyon [Canon] 152 Comment
  RSA725795  Populus trichocarpa R. E. Riefner 2006-9-16 06 -434 Orange Yorba Linda, north of Chapman Ave. c. 1 mile along floodplain of Santa Ana River. 98 Comment
  UC1134818  Populus trichocarpa A. Lewis Mar 1934 336 Orange Santa Ana Canyon; Corona Quad., Santa Ana Canyon Comment
  RSA588882  Porophyllum gracile Fred M. Roberts, D. Bontrager 1990-6-5 4673 Orange Rancho Mission Viejo: Uper Gabino Canyon, near Orange County line, 3.9 kilometers E Point Ranch Survey Marker. 280 Comment
  UCR197674  Portulaca oleracea A. C. Sanders, Fred M. Roberts 2008-9-18 36071 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge 330 Comment
  POM6395  Potamogeton nodosus L. T. Street, Williams 1919-5-4 2689 Orange Laguna Lakes. [now Big Laguna Lake, San Diego Co.] Comment
  UC537265  Potentilla anserina subsp. pacifica Lawrence M. Booth 1932-6-28 1215 Orange Bolsas Marsh Comment
  POM201867  Potentilla anserina var. grandis L. M. Booth 1932-6-28 1215 Orange Bolsas Marsh. Comment
  UCR191453  Potentilla glandulosa A. C. Sanders, 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. 457 Comment
  RSA609007  Pseudognaphalium biolettii L. M. Booth 1932-5-19 1067 Orange Newport Bay Comment
  UCR106310  Pseudognaphalium biolettii B. G. Pitzer, M. Georgiady 1997-4-5 3096 Orange San Joaquin Hills, Crystal Cove State Park, portion across highway on the beach, bluffs immediately above beach and adjacent terraces for southeast end of park. 24 Comment
  UCR281584  Pseudognaphalium canescens subsp. microcephalum Mitch Provance 2017-6-9 617- 97 Orange Coyote Hills, North Fullerton, East side of Gilbert St., 0.5 miles ENE of intersection with Castlewood Dr. 124 Comment
  UCR232932  Pseudognaphalium leucocephalum R. E. Riefner Jr. 2011-10-19 11- 147 Orange South Coast, city of San Juan Capistrano, San Juan Creek, c. 0.2 mi west of intersection of Paseo Tirador and Calle Arroyo Street 31 Comment
  UCR269241  Pseudognaphalium leucocephalum R. E. Riefner Jr. 2015-12-9 15- 458 Orange South Coast, Rancho Mission Viejo, east of San Juan Capistrano north of Antonio Parkway and north of Ortega Hwy 74, near Sendero Field Park 55 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
  UC68911  Pseudognaphalium microcephalum H. M. Hall 1905-7-1 6730 Orange Santa Ana Canon 121 Comment
  UC536948  Pseudognaphalium ramosissimum Lawrence M. Booth 1932-7-27 1321 Orange Corona del Mar Newport Beach, Corona del Mar Comment
  UCSB48065  Pseudognaphalium ramosissimum Roberts, Jr., Fred; Fritzke, S. 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
  JEPS20429  Pseudognaphalium stramineum L. M. Booth 1932-7-19 1275 Orange Bolsa Chica Comment
  JEPS34056  Pseudognaphalium stramineum Alice King 1908-4-1 Orange Santiago Creek Comment
  UCD135212  Pseudognaphalium stramineum E. Frost 1996-5-11 19 Orange Newport Back Bay, 25 yards in along bike path. 7 Comment
  IRVC27729  Psilocarphus brevissimus var. brevissimus Mark A. Elvin 2004-5-2 3413 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7km (air) NNW UC Irvine campus center. Southern Coastal 3 Comment
  CAS-BOT-BC506648  Psilotum nudum R. E. Riefner, Jr. 2015-8-27 15 -357 Orange Cit of Newport Beach, N side of North Coast Hwy, E side of La Brea St. 31 Comment
  RSA698726  Psoralea macrostachya Anonymous 1935-6-4 s.n. Orange Irvine Park Comment
  UCR194553  Pterostegia drymarioides A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35324 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 0.3 mi. west of Eastern Transportation Corridor (Hwy 241) and 1.45 mi. east of south end of Walnut Canyon Reservoir 335 Comment
  RSA542462  Pterostegia drymarioides Fred M. Roberts 1987-3-31 3318 Orange Lomas de Santiago: Lomas [Loma] Ridge, Upper Serrano Canyon, east fork, reservoir, 2.2 kilometers SE Bolero Lookout. 406 Comment
  CAS-BOT-BC362141  Pulicaria paludosa R. G. Ahlefeld 1959-7-15 s.n. Orange Santa Ana Canyon, e. of Fullerton Comment
  RSA783437  Pulicaria paludosa J. D. Olmsted 1959-9-22 991 Orange Near Sycamore Park along Santa Ana River by junction of industrial waters from the 3 M clay works to the south; 8-9 miles W of Corona; base of north Santa Ana Mts. 137 Comment
  UCR138405  Pulicaria paludosa Scott D. White, Brian Leatherman 1997-6-12 5321 Orange Santa Ana Mtn. foothills, E of San Juan Capistrano: San Juan Creek between Hwy 74 bridge and Mission Vieja site, i.e. c. 2-4 mi east of Hwy I-15/Hwy 74 junction 76 Comment
  RSA221064  Pyrus communis E. W. Lathrop 1966-4-18 6176 Orange Santa Ana Mountains, 4 miles northeast of Lake Irvine, Black Star Canyon, Cleveland National Forest, Trabuco District. Comment
  UC484237  Quercus agrifolia C. B. Wolf 1932-3-6 Orange 1.5 mi below Trabuco Oaks (on Trabuco Canyon Road, w slope Santa Ana Mts.); Santa Ana Mts. 304 Comment
  UCR44899  Quercus agrifolia B. G. Pitzer, L. F. LaPre 1986-10-20 0305 Orange Santa Ana Mtns, Summit of Hicks Canyon on a private road (continuation of Jeffrey Road), c. 2.4 mi. above the gun club 274 Comment
  UCSB48077  Quercus agrifolia var. agrifolia Roberts, Fred 1981-4-11 Orange Santa Ana Mtns., San Juan Canyon, Hwy 74, 2.7km ENE San Juan Guard Station 96 Comment
  CAS-BOT-BC86440  Quercus berberidifolia P. C. Everett; E. R. Johnson 1937-11-30 9379 Orange Santa Ana Mts., Bold Meadow at head of Claymine Canyon on slopes of Sierra Peak 762 Comment
  IRVC24551  Quercus berberidifolia Fred M. Roberts 1983-10-9 1141 Orange Laguna Beach: Temple Hill S of Upper Rancho Laguna Canyon near Del Mar Street. Southern Coastal 200 Comment
  RSA0013913  Quercus berberidifolia Fred M. Roberts 2012-5-10 7583 Orange Jan Joaquin Hills; Buck Gully, south fork, norht slope of Pelican Hill, along Pelican Hills Dr., 0.3 km N summit Pelican Hill 189 Comment
  RSA588843  Quercus berberidifolia Fred M. Roberts 1989-11-7 4454 Orange Rancho Mission Viejo: TRW Lease Holding, ridge south of the confluence of Gabino and Blind Canyons, 5.0 km NE Clement Survey Market. 155 Comment
  UCR119798  Quercus berberidifolia R. E. Riefner Jr. 2000-3-18 20- 136 Orange Cleveland National Forest. Ridge-top east of Fremont Canyon and west of Hidden Valley 732 Comment
  UCR242756  Quercus berberidifolia Fred M. Roberts 2012-5-10 7689 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
  RSA0059077  Quercus berberidifolia CNPS Accuracy Assessment Team 2014-7-19 461 B Orange Laguna Coast Wilderness Park. Comment
  JEPS83585  Quercus dumosa Teresa Sholars, Judith Greenlee, and Fred Roberts 1988-3-29 817 Orange Dana Point Headlands, ca 50 m e of ocean bluff Dana Point Headlands Comment
  RSA550591  Quercus dumosa Fred M. Roberts, Kirkland 1989-2-22 4183 Orange San Joaquin Hills: Pelican Hill, 0.4km ESE Summit. 189 Comment
  RSA584719  Quercus dumosa Fred M. Roberts, Wade 1989-6-21 4391 Orange San Joaquin Hills; Los Trancos Canyon, 1km E summit of Pelican Hill. 98 Comment
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Oct 16 2013
  UCSB52409  Quercus dumosa Roberts, Fred 1982-7-1 Orange South Laguna; Niguel Hill, at end of Sea Island Dr., 1.9 km. SE Aliso Peak 210 Comment
  UCSB52416  Quercus dumosa Roberts, Fred 1982-6-30 Orange Laguna Niguel; Niguel Hill, above Pacific Island Dr., 1.9 km. SE Aliso Peak; 1.1 km. E Bench Mark 133 223 Comment
  UCR208055  Quercus engelmannii Fred M. Roberts, D. E. Bramlet 2003-4-10 5645 Orange Coastal Plains & Basins; South Coastal Plain region, Rancho Mission Viejo: Donna O'Neill Land Conservancy, ridge between Cristianitos Cyn. and Segunda Deshecha Canada, 1.51km W Gato Gate and 1.78km NW Edison substation 229 Comment
  UCR117575  Quercus ilex Y. Moore 2000-2-1 s.n. Orange City of Orange, N end of Yorba St. at Santiago Creek, near Chapman Ave. crossing 79 Comment
  CAS-BOT-BC105117  Quercus kelloggii J. K. Munhall; S. E. Gooden 1945-11-8 11511 Orange head of Horsethief Canyon 1143 Comment
  UC1135896  Quercus wislizeni H. E. Norton 1931-3-20 42 Orange ridge between Ladd Canyon and East Fork Canyon; Corona Quad. 1036 Comment
  RSA679225  Quercus wislizeni var. frutescens Fred M. Roberts 2003-6-25 5946 Orange Santiago peak, north slopes along ridge east of Main Divide truck trail, 0.6km NNW summit. 1605 Comment
  UCR113448  Quercus wislizeni var. frutescens R. E. Riefner Jr. 2000-4-13 20- 361 Orange Peninsular Range, Santa Ana Mountains, North Ranch Policy Plan Area, upper drainage of Fremont Canyon near National Forest boundary, south of Claymore Mine 610 Comment
  UCR144740  Quercus wislizeni var. frutescens Gordon Marsh, Karlin G. Marsh 1985-9-27 s.n. Orange Santa Ana Mtns., Pine Canyon, 4.1 km NW of Modjeska Peak 805 Comment
  RSA598966  Rafinesquia californica Scott D. White 1997-3-28 4838 Orange Santa Ana Mountains: above Modjeska Canyon, proposed water tank site. 427 Comment
  SD144019  Rafinesquia californica Scott D. White 1997-3-28 4838 Orange Above Modjeska Canyon: Proposed water tank site. 424 Comment
  RSA724036  Ranunculus arvensis R. E. Riefner 2000-5-2 0 -412 Orange Vicinity of Trabuco Canyon Rd. and Rose Canyon Rd. along Trabuco Creek. 312 Comment
  POM296378B  Ranunculus californicus Lyman Benson 1947-4-27 12338 Orange Carbon Canyon. Chino-Puente Hills; Pacific Slope Drainage Area. 244 Comment
  UC1971227  Ranunculus californicus Scott D. White, Noel Davis 1998-4-24 6344 Orange MISSION VIEJO AREA: Aliso Creek watershed, east of El Toro Rd. just N of junction. w/ Valley Vista Wy. Large proposed subdivision called Saddleback Meadow. USGS Santiago Peak 7.5' Quad. Comment
  RSA734146  Ranunculus californicus R. H. McArthur 1934-3-3 s.n. Orange Forks of laguna Canyon Comment
  RSA305  Ranunculus cymbalaria var. saximontanus J. T. Howell 1927-7-19 3769 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  IRVC19391  Raphanus sativus R. L. Allen 1983-2-12 A623 Orange Fullerton; Hillcrest Park, slope bordering E Valley View Drive. Southern Coastal Comment
  UCR186423  Rauvolfia samarensis Robert DeRuff 1996-4-28 492 Orange Southern Coast, Newport Beach, Newport Back Bay, along Backbay Dr., 0.6 mi. north of Big Canyon 2 Comment
  UCR240084  Rhamnus californica Dick Newell, Judy Booth 2012-6-3 265 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, Maple Springs Truck Trail/Silverado Canyon Rd., 1.6 miles ENE of Maple Springs Gate 741 Comment
  RSA734887  Rhamnus californica subsp. californica A. C. Sanders 2008-5-28 35441 Orange Lomas de Santiago, Bee Flat at mouth of Limestone Canyon. 264 Comment
  SBBG27250  Rhamnus ilicifolia C. B. Wolf, E. R. Johnson 1933-11-3 Orange Silverado Cyn at base of Silverado Motorway 731 Comment
  UC592927  Rhamnus ilicifolia P. C. Everett 1936-9-19 Orange vicinity Forest Service Road gate; Santa Ana Mts., Silverado Canyon 762 Comment
  RSA644972  Rhamnus tomentella subsp. cuspidata R. E. Riefner 2000-4-13 20 -360 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
  UC1121790  Rhamnus tomentella subsp. tomentella J. B. Spring 1931-4-14 32 Orange Cold Spring Canyon Corona Quad. 548 Comment
  CAS-BOT-BC167876  Rhus integrifolia Carl B. Wolf 1932-3-8 2685 Orange 1/2 mi. No. of Corona Del Mar. Borders of Newport Bay 7 Comment
  CAS-BOT-BC170435  Rhus integrifolia Helen D. Geis 1902-4-1 s.n. Orange Red Hill near Santa Ana Comment
  CLARK-A1528-116  Rhus integrifolia Cesareo Perez 1971-5-4 2 Orange Villa Park Comment
  IRVC26756  Rhus integrifolia Peter A. Bowler 2003-4-26 s.n. Orange UC San Joaquin Freshwater Marsh Reserve; along marsh road. Southern Coastal 6 Comment
  LA62813  Rhus integrifolia Carl Epling; Harlan Lewis 1940-4-21 sn Orange hills 6 mi. E of San Juan Capistrano Comment
  RSA451  Rhus integrifolia J. T. Howell 1927-6-16 147 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  SJSU375  Rhus integrifolia A. W. Jacobs 1938-8-4 Orange Trabuca Canyon Rd, Santa Ana Mts c. 6.5 mi NE of El Toro Comment
  UCR145989  Rhus integrifolia June Latting 1977-1-12 s.n. Orange Chino Hills, Tonner Canyon 213 Comment
  UCR193787  Rhus integrifolia A. C. Sanders, Fred M. Roberts 2008-7-3 35693 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
  UCR131883  Rhus laurina J. Mallory, V. McCoy 1995-7-3 6454- 83 Orange Santa Ana Mountains: N-facing slope in Santiago Canyon, c. 0.5 mi. east of Santiago Canyon Rd; near Irvine Park 200 Comment
  CAS-BOT-BC167929  Rhus ovata B. Pitzer; S. Hemstreet 1992-5-27 1960 Orange Cleveland National Forest. Along road (3S04) to Blue Jay Group Campground, off State Hwy 74 (Ortega Hwy). Approx. 2 mi. (airline) W of El Cariso Campground 762 Comment
  HSC3149  Rhus ovata S. M. Clapp 1966-4-10 30 Orange 4 mi. into Black Star Canyon 183 Comment
  LA62871  Rhus ovata W. Pequegnat; 1938-4-16 sn Orange Santa Ana Mts Comment
  UC1127397  Ribes californicum var. hesperium H. E. Norton 1931-3-14 40 Orange Verdugo Potrero Corona Quadrangle Comment
  POM305815  Ribes indecorum Henry J. Ramsey 1937-4-2 1044 Orange Capistrano Canyon. Comment
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Dec 17 2011
  RSA16346  Ribes indecorum Percy C. Everett 1935-6-18 7187 Orange Santa Ana Mts., Main Divide Motorway to Santiago Pk., 1 mi. from Ortega Highway. 732 Comment
  RSA84506  Ribes indecorum F. W. Peirson 1925-4-11 5732 Orange slope above mill, in Silverado Canyon, Santa Ana Mountains. 915 Comment
  CAS-BOT-BC168945  Ribes malvaceum Ira L. Wiggins 1966-4-11 20419 Orange Trabuco Canyon, along north-easterly facing slope of S side of stream, about 1/2 mi. above mouth of canyon. Comment
  LA205475  Ribes malvaceum var. viridifolium W. Pequegnat; 1938-4-16 sn Orange Santa Ana Mountains, Indian Truck Trail 853 Comment
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Aug 29 2015
  RSA101789  Ribes malvaceum var. viridifolium R. Weatherby 1950-2-25 1030 Orange Harding Canyon, Santa Ana Mts. 762 Comment
  RSA1336  Ribes malvaceum var. viridifolium E. R. Johnson 1929-3-12 1250 Orange Canyon West of Roundtop Rancho Santa Ana. 457 Comment
  CAS-BOT-BC186106  Ribes roezlii var. roezlii L. R. A. 1901-6-1 1833 Orange Santiago Peak Comment
  RSA733956  Ribes speciosum Lucille Crawford 1932-5-1 s.n. Orange Silverado Canyon Comment
  CAS-BOT-BC207158  Ricinus communis Ira L. Wiggins 1965-9-6 20345 Orange Margin of fallow field at Well No. 14, Kraemer Oil Estates, near end of county road leading to Rancho Santa Ana. Comment
  RSA652397  Ricinus communis L. M. Anderson 1948-2-17 s.n. Orange Roadside plant on east Fairhaven Ave., 4 mi. e. of Santa Ana. 76 Comment
  RSA131396  Romneya coulteri E. K. Balls, R. M. Beeks, Howard Brown 1958-6-27 23277 Orange 1 miles E of Silverado Stn. Silverado canyon, Santa Ana Moutains. 518 Comment
  SD72770  Romneya coulteri F. R. Fosberg 1931-6-21 S 5094 Orange Lower Santiago Canyon, Orange County Comment
  SDSU892  Romneya coulteri D. F. Howe 1976-6-4 4904 Orange Trabuca Canyon, Santa Ana Mtns. 305 Comment
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Sep 5 2013
  CAS-BOT-BC92179  Romneya coulteri var. coulteri John Thomas Howell 1927-7-24 2833 Orange Floor of Claymine Canon [Canyon], north Santa Ana Mountains. 152 Comment
  CDA23131  Rorippa nasturtium-aquaticum Mark A. Elvin, D. G. Kelch 2006-12-9 5293 Orange Southern Coastal; Newport Backbay; Big Canyon, lower end. Comment
  UC212548  Rosa californica I. M. Johnston 1918-9-3 2140 Orange Laguna Canyon Comment
  RSA0045579  Rosa californica R. H. McArthur 1934-4-21 s.n. Orange Limestone Boyscout Camp. Comment
  RSA528057  Rosmarinus officinalis A. C. Sanders 1990-10-6 10220 Orange Newport Back Bay, SW side at North Star County Beach, ca. 1 mi. inland from Hwy 1 (Pacific Coast Hwy). 1 Comment
  SDSU9247  Rubus ursinus R. M. Beauchamp 1968-2-17 770 Orange Beside road at creek bridge, east of Catholic cemetary on Trabuco Road. Comment
  JEPS39877  Rumex crispus Lawrence M. Booth 1932-5-12 1051 Orange Newport Bay Comment
  UC1292604  Rumex crispus C. L. Hitchcock and C. V. Muhlick 1964-3-17 23072 Orange 8 mi e Yorba Linda; Santa Ana Canyon Comment
  UCR166796  Rumex crispus R. E. Riefner Jr. 2005-7-9 05- 550 Orange South Coast, city of Huntington Beach, Huntington Central Park, Goldenwest Street near Slater Avenue 1.5 Comment
  RSA201  Rumex maritimus J. T. Howell 1927-7-15 409 Orange Santa Ana River, Rancho Santa Ana [Botanic Garden] 152 Comment
  UC217857  Rumex maritimus P. A. Munz 1922-9-2 6346 Orange Laguna Canyon 45 Comment
  POM186339  Rumex maritimus Joseph A. Ewan 1932-7-29 7734 Orange Lagoon in back of Newport Beach, above Tule marsh. Comment
  RSA65452  Rumex maritimus F. W. Peirson 1924-8-29 s.n. Orange 3 miles from Balboa Beach. Comment
  UCR250322  Rumex obtusifolius A. C. Sanders, Fred M. Roberts 2008-8-7 36004 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon at powerline crossing, 1.0 mi. (air) SSE of Walnut Canyon Reservoir 226 Comment
  RSA649684  Rumex pulcher R. E. Riefner 2000-8-17 20 -725 Orange NCCP North Ranch Policy Plan Area. Silverado Creek near Forest Station. 328 Comment
  RSA65365  Rumex salicifolius J. T. Howell 1927-7-5 7689 Orange Rancho Santa Ana, Santa Ana River Canyon. Comment
  RSA715302  Rumex salicifolius A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33054 Orange San Juan Canyon, from Lower San Juan Picnic Area to c. 1 mile downstream, parallel to Hwy 74 and near Riverside Co. line 366 Comment
  UCR193385  Rumex salicifolius A. C. Sanders, T. B. Salvato 2008-5-13 35386 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Canyon above (S of) mouth of Hangman Tree Canyon, just below Modjeska Canyon confluence 366 Comment
  POM49171  Ruppia maritima I. M. Johnston 1924-7-10 s.n. Orange Mouth of Aliso Canyon Comment
  SD80939  Ruppia maritima James Henrickson 1970-7-24 5023 Orange 3 miles NW of Huntington Beach; along margins, beach in shallow water of Inner Bolsa Bay Comment
  POM202047  Salicornia bigelovii L. M. Booth 1932-12-13 1376 Orange Newport Bay. Comment
  RSA689541  Salicornia bigelovii R. E. Riefner 2003-8-17 3 -335 Orange Costa Mesa, marsh along Santa Ana River, west of Talbert Regional Park. 11 Comment
  UCSB36208  Salicornia pacifica Ferren, Wayne 1980-8-27 Orange W side of Backbay Drive ca. 1.5 km. NE of Rt. 1, Newport Backbay, Newport Beach Comment
  UCR211855  Salicornia subterminalis Valerie Soza, Kevin Clark, LeRoy Gross, Will Miller, Fred M. Roberts, G. D. Wallace 2001-4-4 1107 Orange South Coast, Seal Beach National Wildlife Refuge, Seal Beach U. S. Naval Weapons Station, across access road from Nature Center (Bldg 226) 3 Comment
  POM48007  Salicornia virginica I. M. Johnston 1924-8-29 s.n. Orange 4 mi S of Santa Ana. Comment
  RSA5820  Salicornia virginica C. B. Wolf 1932-6-28 3802 Orange 25 ft. west and 600 ft. north of SE corner of SE 1/4 sect 29. 9 Comment
  CAS-BOT-BC129736  Salix bonplandiana Helen D. Geis 1902-1-1 554 Orange Santa Ana Comment
  UCR140886  Salix discolor Robert DeRuff 1987-2-1 334 Orange Southern Coast, Newport Beach, along Back Bay Drive north of Big Canyon 2 Comment
  CAS-BOT-BC108132  Salix gooddingii Carl B. Wolf 1932-4-15 2955 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Canyon 120 Comment
  CAS-BOT-BC108143  Salix gooddingii L. R. Abrams 1913-7-14 5005 Orange Santa Ana River Bridge near Orange Comment
  UC846812  Salix gooddingii L. R. Abrams 1913-7-14 5005 Orange Santa Ana R. Bridge near Orange (Type Station) Comment
  UCR261703  Salix gooddingii Dick Newell, Don Millar 2015-3-31 398 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, on Limestone Canyon Rd., 0.3 mi. SW of junction of Santiago Cyn. Rd. and Silverado Cyn. Rd. 311 Comment
  CAS-BOT-BC108202  Salix hindsiana Carl B. Wolf 1932-7-7 3843 Orange Rancho Santa Ana, along ditch on Bixby Ave., 1 km. west of Hansen Road, near town of Los Alamitos 7 Comment
  PASA2674  Salix laevigata Carl B. Wolf 1932-4-8 2949 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Canyon 120 Comment
  RSA749045  Salix laevigata A. C. Sanders, Fred M. Roberts 2008-8-7 35984 Orange lower Weir Canyon, at narrow gorge c. 0.6 mi. above mouth of cyn at Irvine Ranch gate. 185 Comment
  RSA0071938  Salix laevigata CNPS Accuracy Assessment Team 2014-7-19 1132 Orange Laguna Coast Wilderness Park. Comment
  UCSB52458  Salix laevigata Roberts, Fred; Allen, R. 1982-7-4 Orange Chino Hills: Carbon Canyon, Carbon Canyon Rd., 0.6km by road SW county line; 2.3km NNW Gilman Peak 76 Comment
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Oct 28 2018
  RSA700933  Salix lasiolepis Keith E. Hoffmaster 1931-3-15 s.n. Orange Santa Ana Mountains Comment
  CAS-BOT-BC128462  Salix lasiolepis var. lasiolepis Carl B. Wolf 1932-2-15 2655 Orange Rancho Santa Ana Botanic Garden, north of administration building. 182 Comment
  OBI74732  Salix lucida subsp. lasiandra Unknown 2009-11-9 09 -243 Orange City of Yorba Linda, Santa Ana Canyon, Santa Ana river bottom, E of Weir Canyon Rd, between Horseshoe Bend and vicinity of La Palma Ave. and Mercado del Rio 102 Comment
  UCR179757  Salix lucida subsp. lasiandra R. E. Riefner Jr. 2006-10-4 06- 475 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lake Forest, Aliso Creek near Portola Parkway at El Toro Rd. 225 Comment
  NY284113  Salix nigra var. vallicola L. Abrams 1903-4-16 3256 Orange Santa Ana River, near Orange Comment
  CDA3167  Salsola australis R. E. Riefner Jr. 2007-3-18 07 -152 Orange City of Newport Beach. North shore of Newport Bay, Dover Beach, general vicinity of Morning Star Lane and Polaris Drive. Comment
  UCR222887  Salsola australis T. B. Salvato 2010-10-27 5111 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
  UCR258620  Salsola australis Fred M. Roberts 2014-7-25 7889 Orange South Coast, SAN JOAQUIN HILLS: Laguna Lake 1 (Upper Laguna Lake), south basin 113 Comment
  CAS-BOT-BC176975  Salsola tragus Ira L. Wiggins 1965-11-6 20350 Orange Near Well No. 14, Kraemer Oil Estates, near end of road leading to Rancho Santa Ana Comment
  CAS-BOT-BC176977  Salsola tragus John Thomas Howell 1927-6-6 2443 Orange Santa Ana River bottom, Santa Ana [Canon] Canyon 152 Comment
  CDA25746  Salsola tragus A. C. Sanders, Fred M. Roberts 2008-9-18 36080 Orange Peninsular Range; Santa Ana Mountains Foothills; Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge. Comment
  IRVC29830  Salsola tragus Tom McCrainie, Mark A. Elvin 2006-9-23 4 Orange San Joaquin Marsh Freshwater Marsh, UC Natural Reserve; SW edge, along San Diego Creek, N of University Drive, E Hwy 73. Southern Coastal 2 Comment
  IRVC9300  Salsola tragus B. T. Gittins 1966-6-22 1415 Orange 0.5mi N Warner on Euclid Ave. Huntington Beach Comment
  UCLA55686  Salvia C. Epling and H. Lewis 1940-4-21 Orange 6 mi e San Juan Capistrano Comment
  RSA584710  Salvia apiana Fred M. Roberts 1989-6-7 4378 Orange Santa Ana Mountains: Upper Gypsum Canyon along ridge between Gypsum and Blind Canyon, c. 6.3 km WSW Sierra Peak. 411 Comment
  RSA649075  Salvia apiana Karl Price 1988-5-21 41 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
  RSA769343  Salvia apiana E. W. Lathrop 1974-6-27 7425 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  UCR188932  Salvia clevelandii Robert DeRuff 2005-5-25 556 Orange Newport Beach, Upper Newport Bay, draw on bluff south of the Interpretive Center near end of Del Mare Avenue 20 Comment
  RSA0127603  Salvia columbariae Fred M. Roberts 2016-3-25 8033 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
  RSA542482  Salvia columbariae Fred M. Roberts, Teresa Sholars 1988-3-29 3881 Orange Santa Ana Mountains: Hot Springs Canyon, 0.5 km by road north Hwy 74, 0.9 km ESE Juan Rancho Survey Marker. 223 Comment
  SEINET3242545  Salvia columbariae Norman C. Cooper 1944-1 1349 Orange Elsinore Mtn. Orange Co. 1067 Comment
  HSC14346  Salvia columbariae J. J. Wagoner 1965-4-11 24 Orange Tucker Bird Sanctuary in Modjeska Canyon 183 Comment
  RSA160467  Salvia leucophylla J. D. Olmsted 1959-4-23 465 Orange Hidden Ranch in Black Star Canyon; 5 miles E of Irvine Lake. Santa Ana Mountains. Drainage area to Irvine Reservoir. 579 Comment
  RSA653189  Salvia leucophylla David Barrios 1991-5-8 22 Orange 1500 ft. Northwest of Fairmont Ave and Quail cir. 366 Comment
  UC729647  Salvia leucophylla Carl B. Wolf 1932-6-2 Orange Rancho Santa Ana Rancho Santa Canyon (between administration bldg. and tennis court) 198 Comment
  UCSB50643  Salvia leucophylla 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
  CAS-BOT-BC229976  Salvia mellifera John Thomas Howell 1927-6-8 2459 Orange Southern Puente Hills, in the Santa Ana Canon [Canyon] 213 Comment
  HSC14361  Salvia mellifera C. L. Hitchcock, C. V. Muhlick 1964-3-17 23066 Orange 8 mi. E of Yorba Linda, Santa Ana Canyon. Comment
  HSC14367  Salvia mellifera T. L. Ackerman 1964-3-28 10 Orange Irvine Park Dr. inside Irvine Park Comment
  OBI30186  Salvia mellifera Diane Terrell 1969-4-30 110 Orange At Tucker Wildlife Sanctuary in Modjeska Cyn 427 Comment
  RSA5278  Salvia mellifera B. D. Stark 1932-12-15 4454 Orange Rancho Santa Ana 145 Comment
  UCSB12637  Salvia mellifera Whittington, M. 1962-4-20 Orange Modjeska grade road; between Modjeska and Trabuco Canyon Comment
  IRVC26683  Salvia sonomensis Mark A. Elvin 2004-4-4 3217 Orange UCI Arboretum Southern Coastal 15 Comment
  RSA434083  Salvia spathacea Unspecified 1920-6-2 s.n. Orange Laguna. Comment
  RSA751396  Salvinia minima Rick E. Riefner Jr. 2008-7-9 8 -219 Orange City of Laguna Beach, bluff area W of West St. and Pacific Coast Highway. 4 Comment
  JEPS12740  Sambucus mexicana L. M. Booth 1932-5-27 1127 Orange Newport Bay Comment
  RSA13083  Sambucus mexicana Vernon Fagan 1935-9-4 7566 Orange Rancho Santa Ana, Santa Ana Canyon North of Mexican Houses. 122 Comment
  RSA3157  Sambucus mexicana C. B. Wolf 1931-7-24 2292 Orange lower end of Carbon Canyon. 152 Comment
  RSA658215  Sambucus mexicana T. A. Daubert 1991-5-26 656 Orange Tucker Wildlife Sanctuary, Modjeska Canyon inside sanctuary. Comment
  RSA734894  Sambucus mexicana A. C. Sanders 2008-5-28 35431 Orange Lomas de Santiago, Bee Flat at mouth of Limestone Canyon 264 Comment
  RSA747  Sambucus mexicana J. T. Howell 1927-6-1 1 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA751420  Sambucus mexicana A. C. Sanders, Fred M. Roberts 2008-7-3 35691 Orange Weir Canyon, along Windy Ridge Rd. at hairpin turn/road junction below huge sandstone boulder (visible on Google Earth), 1.2 mi. SE of Walnut Canyon Reservoir 275 Comment
  UC1125355  Sambucus mexicana A. Lewis Mar 1934 335 Orange Santa Ana Canyon Corona Quadrangle Comment
  UC527395  Sambucus mexicana C. B. Wolf 1931-7-25 2293 Orange above irrigation canal (just n of Mexican houses); Rancho Santa Ana, Santa Ana Canyon 121 Comment
  UCR177691  Sambucus mexicana Fred M. Roberts 2003-5-1 5684 Orange Coastal Plains & Basins; South Coastal Plain region, Rancho Mission Viejo: Donna O'Neill Land Conservancy, Cristianitos Cyn., 0.60 km SSW Gato Gate and 0.16 km west of Cristianitos Rd. 93 Comment
  RSA788901  Sambucus nigra Fred M. Roberts 2008-6-12 7039 Orange Lomas de Santiago: Loma Ridge, Shoestring Canyon, Shoestring Road near jct. with Santiago Cyn. Rd. 251 Comment
  CAS-BOT-BC238824  Sambucus nigra subsp. caerulea Peter A. Bowler 2003-4-26 s.n. Orange Southern Coastal: UC San Joaquin Freshwater Marsh Reserve 6 Comment
  UCSB69268  Sambucus nigra subsp. caerulea Sanders, A.; Roberts, Fred 2008-7-3 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 (Black Star Canyon 7.5 ' Q.) 285 Comment
  UC1022513  Sanicula crassicaulis C. Ritchie Bell 1953-2-22 3 X482 Orange 5 mi ne of Mission Capistrano (s of Cal Hwy 79) 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
  RSA471472  Sanicula crassicaulis Christopher Davidson 1977-5-18 5636 Orange Cleveland National Forest, Falcon campground. 1006 Comment
  RSA606430  Sanicula crassicaulis Jon E. Keeley 1994-4-5 25263 Orange First year burn, east end of Caspers Park S-7 (Keeley 1994) 215 m. 215 Comment
  UCR175518  Satureja chandleri Mark A. Elvin, A. C. Sanders 2005-9-2 4499 Orange Peninsular Ranges, Santa Ana Mtns: Mouth of Lion Canyon, just upstream from Lower San Juan Campground 457 Comment
  RSA83973  Saxifraga californica F. W. Peirson 1925-4-11 5730 Orange Slope above mill, in Silverado Canyon, Santa Ana Mountains. Comment
  RSA0036019  Schinus molle Robert F. Thorne 1977-11-21 50808 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs Comment
  IRVC1823  Schismus barbatus I. L. Wiggins 1966-2-18 20 448 Orange Rancho Santa Ana: roadside 1/2 mile W of entrance to Rancho Santa Ana near the end of Orange County road at the end of Orangethorpe Avenue. Santa Ana Mountains 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
  RSA0013909  Schismus barbatus Fred M. Roberts 2012-4-24 7524 Orange San Joaquin Hills: Buck Gully, tributary canyon below San Joaquin Hills Road and 2.0 km W Signal Peak 167 Comment
  POM6359  Schoenoplectus americanus Phillip A. Munz, L. T. Street, G. Williams 1919-5-3 2652 Orange Santa Ana River Canyon. Comment
  CHSC26101  Schoenoplectus californicus James Henrickson 1970-7-24 4985 Orange 2 miles NNW of Huntington Beach around small freshwater industrial pond at eastern margin of Bolsa Chica Salt Marsh along Huntington Beach Mesa. 0 Comment
  RSA184313  Schoenoplectus californicus L. M. Booth 1932-8-4 s.n. Orange Santa Ana River, one mile from sea - sea level. 0 Comment
  RSA232214  Schoenoplectus californicus James Henrickson 1970-7-24 4985 Orange 2 miles NW of Huntington Beach around small freshwater industrial pond at eastern margin of Bolsa Chica Salt Marsh along Huntington Beach Mesa. 0 Comment
  RSA234484  Schoenoplectus californicus James Henrickson 1970-7-25 5070 Orange 2 miles N of Huntington Beach along NE margin of Bolsa Chica Salt March 0 Comment
  RSA731914  Schoenoplectus californicus Fred M. Roberts, Sandy Leatherman 2007-11-27 6665 Orange Anaheim: Santa Ana River, Santa Ana Canyon, just west of Horseshoe Bend on S side of E La Palma Ave., about 0.3km E Weir Cyn. Rd. bridge. 100 Comment
  RSA91  Schoenoplectus californicus J. T. Howell 1927-6-30 243 Orange Bryant Ranch near Long Beach. 15 Comment
  RSA232224  Schoenoplectus maritimus James Henrickson 1970-10-3 5358 Orange 3 miles NE of Huntington Beach just N of Bolsa Chica Salt Marsh. 0 Comment
  RSA539372  Schoenoplectus maritimus P. R. Atsatt 1990-10-13 s.n. Orange Newport Beach: Upper Newport Back Bay, Back Bay Drive, 2.7 kilometers W. UC Irvine campus center. 3 Comment
  POM50487  Schoenoplectus maritimus Helen D. Geis 501 Orange Peat Lands Comment
  RSA97  Schoenoplectus maritimus J. T. Howell 1927-6-30 237 Orange Bryant Ranch near Long Beach. 15 Comment
  UC729885  Scirpus californicus Carl B. Wolf 1932-7-7 3862 Orange Bryant Ave. 1/2 mi e Los Alamitos Blvd. (near the town n side of road, opposite Bryant Ranch); Bryant Ranch Comment
  RSA769338  Scrophularia californica E. W. Lathrop 1974-6-27 7413 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  UC1125690  Scrophularia californica A. Lewis Apr 1934 385 Orange Silverado Canyon; Cleveland Nat'l Forest, Corona Quadrangle Comment
  RSA0045321  Scrophularia californica Minor Warne 1934-03 s.n. Orange Gypsum Canyon. Comment
  RSA650906  Scrophularia californica Diane T. Liggett 1981-5-16 4 Orange Riverside Freeway (91) east to Imperial Hwy, South to Nohl Ranch Road, east to Serrano Ave., south on Hidden Cyn. Road., .6 km into Weir Cyn. Comment
  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
  UC1618101  Scutellaria tuberosa Donald G. Nelson 1935-7-6 258 Orange San Juan Canyon Comment
  CAS-BOT-BC61963  Selaginella John Thomas Howell 1927-7-24 2834 Orange side of Calymine Canyon, n. Santa Ana Mts. 152 Comment
  RSA16  Selaginella bigelovii John Thomas Howell 1927-7-28 506 Orange Nolina Canyon, Rancho Santa Ana 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
  UC534969  Selaginella bigelovii John Thomas Howell 1927-7-22 2834 Orange Claymine Canyon; Santa Ana Mts. 182 Comment
  RSA450849  Senecio aphanactis Karlin G. Marsh 1978-3-16 s.n. Orange UCI Ecological Preserve: Hill #1 52 Comment
  CAS-BOT-BC363480  Senecio californicus P. C. Everett 1935-3-15 6294 Orange Rancho Santa Ana, Santa Ana Canyon near Corner Post 3938 182 Comment
  POM272076  Senecio californicus Lyman Benson 1932-3-26 3199 Orange Dana Point. 60 Comment
  UCR203981  Senecio californicus Fred M. Roberts 2008-3-12 6719 Orange South Coast, Dana Point Headlands Center for Natural Lands Mgmt. Preserve, west side, c. 0.8 km west of Marine Institute, Dana Point Harbor 50 Comment
  RSA0012719  Senecio californicus Helen D. Geis 537 Orange Santiago Canyon. Comment
  POM201687  Senecio flaccidus var. douglasii L. M. Booth 818 Orange Santa Ana Canyon bottom Comment
  LA203927  Senecio flaccidus var. douglasii W. E. Pequegnat; 1937-8-25 sn Orange Santa Ana Mountains, near Hyla (?) Stream Comment
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Jan 26 2015
  SD181682  Senecio lautus Scott D. White 1998-6-26 6783 Orange University of California Irvine; stream just north of Bonita Canyon Dr. 70 Comment
  UCR149494  Senecio linearifolius Scott D. White, Michael Honer 2004-5-17 10401 Orange South Coast, City of Laguna Niguel. Ridges and open slopes directly N of the intersection of Crown Valley Parkway and Pacific Island Dr 183 Comment
  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
  RSA450861  Senecio mikanioides Gordon Marsh, K. G. Marsh 1978-1-29 s.n. Orange Santa Ana Mountains, Lower Ladd Canyon, reach between west and east forks 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
  CAS-BOT-BC364602  Senecio vulgaris Ira L. Wiggins 1966-3-5 20503 Orange Roadside shoulder along Highway S-18, about 4.5 mi. E. of Laguna Beach Comment
  RSA650816  Senecio vulgaris Daniel Truong 1991-5-5 7 Orange Irvine Regional Park, left field adjacent to main entrance, within 1/4 mile radius of ''closed area'. Comment
  RSA184127  Setaria parviflora I. L. Wiggins 1965-9-26 20260 Orange Roadside at W end of Orangethorpe Estates subdivision, near Atwood. Orange County Comment
  UC729940  Setaria parviflora Carl B. Wolf 1932-6-13 3725 Orange Malvern & Nicholas Aves. Fullerton 53 Comment
  UCR76075  Sidalcea malviflora B. G. Pitzer, Stu Hemstreet 1992-5-27 1950 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, along Forest Service Road 3S04 to Blue Jay Group Campground, off Hwy 74 (Ortega Hwy), c. 2 mi west of El Cariso Campground 765 Comment
  IRVC17031  Silene gallica E. McRae 1965-4-8 Orange Costa Mesa Comment
  IRVC20780  Silene gallica Fred M. Roberts, S. L. Fritzke 1982-4-2 458 Orange hills, 3.5km ESE Aliso Peak; 3.2km ESE Alicia Fire Station, N of Del Avion, Laguna Niguel 100 Comment
  RSA0127422  Silene gallica Fred M. Roberts 2016-3-17 8017 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
  RSA732119  Silene gallica A. C. Sanders, Fred M. Roberts 2008-4-8 34730 Orange Peninsular Range: Lomas de Santiago, Loma Ridge, head of Hicks Canyon. S of Santiago Reservoir. 351 Comment
  SEINET11944367  Silene gallica Unknown 1933-1 8188 Orange La Guna Beach Comment
  CAS-BOT-BC174885  Silene laciniata Munz; Street; Williams 1919-5-3 2671 Orange Santa Ana River [Canon] Canyon Comment
  SD72733  Silene laciniata F. R. Fosberg 1931-6-2 S 5137 Orange Silverado Canyon, Santa Ana Mountains. Comment
  UCR192083  Silene laciniata A. C. Sanders, Fred M. Roberts, Amber O'Neal, D. E. Bramlet 2008-5-9 35296 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along old dirt road, c. 1.25 mi. ESE of Walnut Cyn Reservoir 340 Comment
  RSA0054829  Silene laciniata Keith E. Hoffmaster 1934-7-15 110 Orange Santa Ana Mts. (Modjeska). Comment
  RSA438887  Silene laciniata subsp. major M. B. Dunkle 1934-6-18 3997 Orange San Juan Canyon 305 Comment
  RSA438888  Silene laciniata subsp. major M. B. Dunkle 1933-5-30 3375 Orange Santa Ana Canyon. Comment
  RSA602114  Silene laciniata subsp. major Scott D. White 1997-5-6 5041 Orange Santa Ana Mountains. Santiago Canyon area: Ridgetop road N and W of Bolero Lookout. 427 Comment
  UCR209365  Silene laciniata subsp. major Fred M. Roberts, Linda Farley 2008-3-28 6831 Orange Santa Ana Mountains, Upper Weir Canyon, Irvine Ranch Conservancy, 3.3 km east-northeast of Robbers Peak on ridge north of canyon 427 Comment
  RSA14728  Silybum marianum C. B. Wolf 1935-2-26 s.n. Orange Rancho Santa Ana, near office Comment
  UCSB69267  Silybum marianum Sanders, A.; Roberts, Fred 2008-7-3 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 (Black Star Canyon 7.5' Q.) 275 Comment
  RSA797658  Sinapis arvensis R. F. Thorne, E. W. Lathrop 1977-5-18 49761 Orange Santa Ana Mountains: at head of Trabuco Canyon Trail Comment
  IRVC19418  Sisymbrium irio R. L. Allen 1983-2-12 A633 Orange Fullerton; Hillcrest Park, slope bordering E Valley View Drive. Southern Coastal Comment
  RSA653180  Sisymbrium irio David Barrios 1991-5-8 37 Orange 1500 ft. Northwest of Fairmont Ave and Quail cir. 365 Comment
  UCR209344  Sisymbrium irio Fred M. Roberts 2008-4-15 6900 Orange Lomas de Santiago, Loma Ridge, Lower Hicks Canyon, east ridge, Conservation Trail, 1.6 km east-southeast of Rattlesnake Reservoir Dam and 2.7 km west-southwest of Bee Peak, Irvine Ranch Conservancy 172 Comment
  RSA336970  Sisyrinchium bellum N. C. Cooper 1944-6-4 1330 Orange San Juan Canyon. 152 Comment
  RSA366973  Sisyrinchium bellum H. L. Bauer 1929-4-20 s.n. Orange Trabuco 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
  RSA7579  Sisyrinchium bellum E. R. Johnson 1933-11 2031 Orange Rancho Santa Ana. Comment
  UCSB9450  Sisyrinchium bellum Lloyd, Robert 1959-4-17 Orange Santa Ana Mtn Range; 10 miles south of West Corona on the Oak Flats Fire Road 792 Comment
  IRVC18594  Sitanion jubatum Karlin G. Marsh 1980-8-13 s.nn. Orange S of Trabuco Canyon, Sect. 12, Hinricks Parcel. Santa Ana Mountains Comment
  CDA20833  Solanum americanum P. Akers 2006-3-25 PA 7 -06 Orange Peninsular Ranges; Yorba Linda. Santa Ana River S of La Palma Dr, 0.6-0.9 mi E of Yorba Linda Dr. 121 Comment
  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
  RSA682757  Solanum americanum Scott D. White, Amanda Duchardt 2003-3-27 8851 Orange Santa Ana Mountain Foothills: Canyon bottom and west facing slopes above Canada Gobernadora. 91 Comment
  RSA263702  Solanum douglasii E. W. Lathrop 1974-6-27 7414 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  UCR137188  Solanum douglasii M. B. Dunkle 1933-3-5 3093 Orange Southern Coast, San Juan Canyon 305 Comment
  UCR193021  Solanum douglasii A. C. Sanders, Mitch Provance 2008-5-20 35417 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago area, Santiago Creek Canyon, c. 3/4 mile below Modjeska Canyon confluence 355 Comment
  RSA704889  Solanum douglasii Doug Causey 1972-5-1 s.n. Orange 3 mi. E Irvine Lake Comment
  UCSB41752  Solanum douglasii Rowlands, Peter 1970-3-6 Orange Trabuco Cyn.; approx 2 mi up cyn from O'Neil Park 396 Comment
  RSA23641  Solanum elaeagnifolium E. R. Johnson 1939-4-25 9499 Orange Santa Ana Canyon. Rancho Santa Ana , along Santa Fe R.R. tracks south of Exp. citrus plot. 122 Comment
  NY821424  Solanum nigrum C. L. Hitchcock 1964-3-17 23063 Orange 8 mi. E. of Yorba Linda, Santa Ana Canyon Comment
  RSA799943  Solanum rostratum Justin M. Wood 2011-6-28 4308 Orange South Coast: City of Costa Mesa; Fairview Park, just WNW of Marison Special Education Center. 24 Comment
  UCR139445  Solanum rostratum E. R. Johnson 1946-8-22 11531 Orange Santa Ana River Canyon, Rancho Santa Ana Botanic Garden 122 Comment
  RSA599592  Solanum rostratum Fred M. Roberts Jr., Nigel Hancock 1995-5-25 4947 Orange Costa Mesa; Fairview Park, Just west of end of Canyon Drive, 0.1 km W Canyon School. 24 Comment
  JEPS12147  Solanum umbelliferum Alice King May, 1908 Orange Santa Ana Mountains Comment
  POM212351  Solanum umbelliferum Carl B. Wolf 1931-3-6 1862 Orange North of base of Trabuco Modjeska Grade, west slope of Santa Ana Mts. 305 Comment
  RSA2067  Solanum umbelliferum Carl B. Wolf 1931-3-6 1862 Orange North of base of Trabuco Modjeska Grade, west slope of Santa Ana Mts. 305 Comment
  RSA427454  Solanum umbelliferum M. B. Dunkle 1933-5-30 3576 Orange Santa Ana Canyon Comment
  UC484257  Solanum umbelliferum C. B. Wolf 1931-3-6 1850 Orange 1/2 mi below Trabuco Camp Ground (w slope Santa Ana Mountains, Trabuco Canyon); Santa Ana Mountains, Trabuco Canyon 609 Comment
  RSA0020572  Solanum umbelliferum Keith E. Hoffmaster 1927-4-8 534 Orange Santa Ana Mountains. Comment
  UCR209669  Solanum umbelliferum var. glabrescens Fred M. Roberts, Lee Ann Carranza 2008-4-16 6916 Orange South Coast, Dana Point Headlands, CNLM Preserve, near Strands Road Gate, 0.8 km west of the Marine Institute, Dana Point Harbor 71 Comment
  RSA0039365  Solanum virginianum Justin M. Wood 2013-9-5 5120 Orange Santa Ana Canyon: Between the Santa Ana River and the Green River Golf Course, in a recently planted restoration area. Roughly 0.5 miles west of the Riverside County Line. 127 Comment
  NY820525  Solanum xanti F. M. Reed 1928-2-10 5712 Orange Arch Beach 46 Comment
  UCR241050  Soleirolia soleirolii Robert DeRuff 2012-9-27 554 B Orange South Coast, Upper Newport Bay, adjacent to Back Bay Dr. just past Newporter Canyon 3 Comment
  RSA473634  Solidago californica M. B. Dunkle 1934-6-18 3967 Orange Upper San Juan Canyon 610 Comment
  RSA788807  Solidago californica R. F. Thorne 1977-11-21 49980 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp Comment
  UCR194991  Solidago californica A. C. Sanders, Fred M. Roberts 2008-8-7 35998 Orange Peninsular Range; Santa Ana Mtns., middle section of Weir Canyon, 1.15 mi. (air) SSE of Walnut Canyon Reservoir 225 Comment
  RSA0031765  Solidago occidentalis R. F. Thorne 1977-11-21 50809 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs Comment
  UCR191214  Sonchus asper A. C. Sanders 2008-4-29 35146 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, western end of Loma Ridge on road to sheriff's training facility, c. 1.5 mi. SW of Santiago Reservoir 335 Comment
  POM201741  Sonchus oleraceus L. M. Booth 1932-5-12 1012 Orange Newport Bay. Comment
  RSA234497  Sonchus oleraceus James Henrickson 1970-7-24 4954 Orange 1.5 miles NW of Huntington Beach, along border of Bolsa Chica Salt Marsh at SW end of Huntington Beach Mesa. 8 Comment
  RSA799950  Sonchus oleraceus D. M. Ray 2011-1-19 4 Orange South Coast: Santa Ana River: along right of way road just west of Least Tern Island. 0 Comment
  UCD136209  Sonchus oleraceus Ira L. Wiggins 1965-11-6 20334 Orange west side of Atwood. Comment
  CAS-BOT-BC235343  Sorghum halepense Le Roy Abrams 1901-6-12 1765 Orange Santa Ana Comment
  JEPS73760  Sorghum halepense L. M. Booth 1932-7-18 1265 Orange Newport Bay, Costa Mesa Comment
  SEINET179444 Image available Sorghum halepense L. M. Booth 1932-7-18 1265 Orange Costa Mesa. Comment
  UC729939  Sorghum halepense Carl B. Wolf 1932-6-13 3724 Orange Malvern & Nicholas Aves. Fullerton 53 Comment
  POM146217  Spartina foliosa F. M. Reed 1927-11-25 5676 Orange Anaheim Landing Comment
  RSA483175  Spartina foliosa E. Yale Dawson 1948-10-2 5300 Orange Balboa Yacht Harbor, just east of 101 Hwy bridge Comment
  CSUSB1332  Spartium junceum Cesareo Perez 1971-5-4 Orange South Mesa Drive and Lemon Street in Villa Park Comment
  IRVC2454  Spartium junceum E. Cowper 1964-4-25 s.n. Orange Laguna. Southern Coastal Comment
  RSA0097080  Spergularia B. Pitzer 1996-4-30 2784 Orange Upper Newport Bay: California Department Fish & Game Ecological Reserve, off (W of) Jamboree Road. 6 Comment
  RSA0097843  Spergularia macrotheca P. A. Munz 1918-5-5 2204 Orange Laguna Beach. Comment
  RSA0097844  Spergularia macrotheca James Snow 1932-1 s.n. Orange Bryant Ranch, near Long Beach. Station #1. Comment
  RSA0097845  Spergularia macrotheca E. R. Johnson 1927-6-10 76 Orange Bryant Ranch, near Long Beach. 15 Comment
  RSA0098429  Spergularia macrotheca var. leucantha R. E. Riefner 1996-3-28 96 -28 Orange San Clemente State Beach. Comment
  RSA0013956  Spergularia macrotheca var. macrotheca Fred M. Roberts 2008-5-7 6943 Orange Lomas de Santiago: Loma Ridge, Limestone Ridge between Dripping Spr. and Limestone Cyn., 3.5 km NW Bolero Lookout and 1.7 km E Bee Peak. Irvine Ranch Conservancy. 481 Comment
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Feb 27 2019
  RSA47078  Spergularia rubra Albert J. Perkins 1926-4-27 14728 Orange SAnta Ana, Mr. Perknis yard Comment
  RSA5860  Spergularia salina C. B. Wolf 1932-6-28 3783 Orange Along western half of no. boundary of 40 acre Valencia Orange grove at Bryant Ave. and Hansen Road. 9 Comment
  PASA1277  Spergularia tenuis Joseph Andorfer Ewan 1931-7-31 Orange Smeltzer 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
  RSA0098709  Spergularia villosa L. M. Booth 1932-7-18 1266 A Orange Costa Mesa, inland from Newport Bay. 30 Comment
  CAS-BOT-BC236658  Sporobolus airoides John Thomas Howell 1927-6-21 2568 Orange Arroyo in hills on north side of Santa Ana Canyon 152 Comment
  RSA17140  Sporobolus airoides C. B. Wolf 1936-4-22 7771 Orange Along Hansen Road 100 yds north of Cerritos Ave. 15 Comment
  RSA5953  Sporobolus airoides C. B. Wolf 1932-7-7 3848 Orange Bixby Ave., 0.7 mile W of Hansen road (0.2 mile W of SE corner of NE/4 of NW/4) T4S R11W S34 8 Comment
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Apr 10 2014
  RSA691958  Stachys ajugoides Scott D. White, Michael Honer 2003-4-10 9001 Orange Santa Ana Mountain Foothills: Ridges & east-facing canyons above Trampas Canyon. 122 Comment
  UCR192975  Stachys ajugoides A. C. Sanders, Fred M. Roberts 2008-6-17 35488 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, West Loma Ridge Spur Road c. 1 km east of Sheriff's Training Facility and 1.6 km SW of Irvine Lake, between hwys 241 and 261 357 Comment
  UC537164  Stachys ajugoides var. rigida Lawrence M. Booth 1932-5-19 1080 Orange Newport Bay Comment
  RSA780827  Stachys ajugoides var. rigida Sandy Leatherman 2011-5-16 2011 -16 Orange Peninsular Ranges; Chino-Puente Hills region: 50 meters west of Carbon Canyon Road and Lions Canyon Road in Carbon Canyon in the City of Brea. 273 Comment
  SBBG120829  Stachys rigida A. C. Sanders, F. M. Roberts, M. Balk 2006-7-20 33018 Orange San Juan Cyn, from lower San Juan Picnic Area to ca. 1 mi downstream, parallel to Hwy 74, near Riverside Co line 366 Comment
  UCR228809  Stachys rigida var. rigida Dick Newell, Don Millar 2011-7-19 209 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Dripping Springs 392 Comment
  UCR231347  Stachys stebbinsii A. C. Sanders, Kent Beaman 2011-9-27 39902 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
  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
  UCR222383  Stellaria media Mark A. Elvin 2003-1-26 2238 Orange South Coast, Irvine, UC Irvine Open Space Preserve, NE side, between core of UCI campus (E Peltason Dr.) and Hwy 73 69 Comment
  CAS-BOT-BC393821  Stellaria media Ira L. Wiggins 1965-11-5 20329 Orange N side of Chapman Avenue near Kraemer Road Comment
  RSA696565  Stellaria media Marjorie Smith s.n. Orange High School Campus. 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
  RSA749688  Stephanomeria A. C. Sanders, Fred M. Roberts 2008-7-16 35827 Orange Lomas de Santiago, along road in lower Limestone Canyon, near junction with Harding Truck Trail 290 Comment
  UCR193852  Stephanomeria A. C. Sanders, Fred M. Roberts 2008-7-16 35827 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, along road in lower Limestone Canyon, near junction with Harding Truck Trail 290 Comment
  UCR247541  Stephanomeria cichoriacea Dick Newell, Judy Booth 2013-8-25 338 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, Maple Springs Rd., 2.1 air miles due east of lower Maple Springs gate 832 Comment
  UCR73133  Stephanomeria diegensis Scott D. White 1992-9-23 850 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
  UCD136245  Stephanomeria diegensis L. D. Gottlieb 1968-8-14 6860 Orange on Route 74, immediately west of Lower San Juan Campground. 411 Comment
  UC520303  Stephanomeria virgata subsp. pleurocarpa Joseph Andorfer Ewan 1932-7-28 7706 Orange Corona del Mar Comment
  UCR239632  Stipa lepida Fred M. Roberts 2012-4-24 7511 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
  UCR2802  Stipa pulchra F. M. Reed 1927-1 5474 Orange Cliffs at Arch Beach 15 Comment
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Nov 4 2017
  UCR37794  Stipa pulchra Steve Boyd 1981-5-13 s.n. Orange South Coast, Pelican Hill, Irvine Ranch Property, San Joaquin Hills south of Corona del Mar 218 Comment
  RSA684307  Stylocline gnaphaloides Fred M. Roberts 2003-3-13 5588 Orange Donna O'Neill Land Conservancy: Ridge west of Christianitos Canyon, 1,320m NW Sycamore Gate and 880m W Cristianitos Rd. 179 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
  CAS-BOT-BC422882  Stylomecon heterophylla P. A. Munz 1918-5-4 2171 Orange Laguna Beach Region. Laguna Canon [Canyon] Comment
  CHSC116479  Styrax officinalis var. fulvescens R. F. Thorne; C. W. Tilforth, E. W. Lathrop 1977-4-27 49686 Orange Northern Santa Ana Mountains: Sierra Peak. [ locality information from field label; note on newspaper 'near Beek's Place, Skyline Drive crest, MDT Trail' (Main Divide Truck Trail] 899 Comment
  UC1123319  Styrax officinalis var. redivivus A. Lewis Apr 1934 380 Orange 2 mi ne Santiago Coal Mine; Cleveland National Forest, Corona Quad. Comment
  UC1123320  Styrax officinalis var. redivivus J. B. Spring 1931-4-14 34 Orange Hot Springs, San Juan Canyon; Elsinore Quad., Hot Springs, San Juan Canyon 213 Comment
  UCR58633  Styrax officinalis var. redivivus Reid Moran, D. Axelrod, Bob Smart 1975-7-18 22599 Orange Santa Ana Mtns., N slope of ridge, upper Trabuco Canyon 900 Comment
  POM202055  Suaeda calceoliformis L. M. Booth 1932-8-5 1353 Orange West Newport Beach. Comment
  UC217430  Suaeda calceoliformis H. M. Hall 1920-10-4 11221 Orange Cypress Comment
  IRVC23985  Suaeda calceoliformis R. De Ruff 1988-6-5 Orange Newport Backbay, road just east of Shellmaker Island, Newport Beach 0 Comment
  POM48697  Suaeda calceoliformis I. M. Johnston 1924-8-29 s.n. Orange 4 miles north of Balboa Comment
  IRVC29762  Suaeda esteroa Barry S. Nerhus, Mark A. Elvin 2006-11-4 9 Orange Huntington Beach, Bolsa Chica Wetlands, SW portion of Reserve beside Pacific Coast Highway. Southern Coastal 0 Comment
  POM202729  Suaeda esteroa L. M. Booth 1932-12-13 1373 Orange Newport Bay. Comment
  RSA611262  Suaeda esteroa L. C. Wheeler 1946-9-28 6385 Orange Newport Bay. Comment
  SD123924  Suaeda esteroa C. W. Tilforth 1975-9-6 1044 Orange Northeast shoreline of Upper Bay, Newport Beach. Comment
  CAS-BOT-BC110410  Suaeda taxifolia L. R. Abrams 1917-6-25 6557 Orange Balboa. Comment
  LA204738  Suaeda taxifolia Norman C. Cooper; 1942-11-9 883 Orange Balboa Comment
  RSA438591  Suaeda taxifolia E. A. Purer 1932-03 15767 Orange Coast Highway at Huntington Beach Comment
  RSA531318  Suaeda taxifolia A. C. Sanders 1990-10-6 10180 Orange Newport Bay, Westcliff Park area on the SW end of the bay, 1km inland of Hwy 1. 1 Comment
  RSA758766  Suaeda taxifolia Anstruther Davidson 1907-09 1779 Orange Newport. Comment
  UC536967  Suaeda taxifolia Lawrence M. Booth 1932-6-29 1232 Orange Newport Bay Comment
  UCR219806  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
  UCR240097  Suaeda taxifolia Dick Newell 2012-9-29 299 Orange South Coast, Newport Beach, Back Bay Drive at Big Canyon parking area 2 Comment
  UCSB36511  Suaeda taxifolia Ferren, Wayne; Whitmore, S. 1980-8-27 Orange Newport Backbay; along Backbay Drive; ca. 1.5 km. NE of Rt. 1, Newport Beach Comment
  RSA715246  Symphoricarpos A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33040 Orange San Juan Canyon, from Lower San Juan Picnic Area to c. 1 mile downstream, parallel to Hwy 74 and near Riverside Co. line 366 Comment
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Dec 16 2008
  IRVC20319  Symphoricarpos mollis Fred M. Roberts 1983-1-19 855 Orange Park Canyon, west flank Temple Hill, along Park Ave., 1.3km NE Thurston Sch.; 1.7km SE Bench Mark 104, Laguna Beach 194 Comment
  RSA697319  Symphoricarpos mollis Keith E. Hoffmaster 1931-3-22 s.n. Orange Santa Ana Mountains. Comment
  UC1119928  Symphoricarpos mollis A. Lewis Apr 1934 376 Orange 0.50 mi s Rabbit Canyon; Corona Quad. 304 Comment
  UCR193767  Symphoricarpos mollis A. C. Sanders, Fred M. Roberts 2008-7-3 35671 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor 415 Comment
  UC29835  Symphyotrichum defoliatum C. W. Hamlin 1896-1 25 Orange Buena Park Comment
  SD87612  Symphyotrichum subulatum var. parviflorum F. W. Peirson 1924-10-19 5240 Orange Wintersberg Comment
  RSA603310  Tamarix ramosissima Scott D. White, B. Leatherman 1997-6-12 5336 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
  IRVC937  Taraxacum officinale D. Pfirrmann 1965-4-30 Orange 2129 Orange Ave. Costa Mesa Comment
  RSA696192  Taraxacum officinale Keith E. Hoffmaster s.n. Orange Santa Ana