Search Results — 2000 specimen records retrieved (1614 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
  IRVC28912  Abronia maritima R. E. Reifner 1994-5-22 94 380 Orange San Mateo Point; W of RR tracks, N of County line marker. Southern Coastal 6 Comment
  SD181444  Abronia maritima Valerie Sosa, Kevin Clark, LeRoy Gross, et al. 2001-4-4 1116 Orange Anaheim Bay: Seal Beach U. S. Naval Weapons Station, southwestern edge of Seal Beach National Wildlife Refuge 3 Comment
  UCR228888  Abronia maritima Dick Newell, Don Millar 2011-7-29 216 Orange South Coast, Bolsa Chica Ecological Reserve, 1.3 miles southeast of Pacific Coast Hwy at Warner Ave. 5 Comment
  IRVC29759  Abronia umbellata Barry S. Nerhus, Mark A. Elvin 2006-11-4 12 Orange Huntington Beach, Bolsa Chica Wetlands, SW portion of Reserve beside Pacific Coast Highway. Southern Coastal 0 Comment
  RSA640716  Abronia umbellata Louis C. Wheeler 1931-8-17 s.n. Orange Balboa. Comment
  UC101373  Abronia villosa C. F. Baker 1903-4-1 4125 Orange Anaheim Comment
  RSA0025969  Abronia villosa Dorothy Parsons 1932-3-28 s.n. Orange Buena Park Road. Comment
  POM201770  Abronia villosa var. aurita L. M. Booth 1932-6-25 1308 Orange Santa Ana River, 1 1/2 miles from ocean. Comment
  IRVC16141  Acer macrophyllum R. Meinzer, T. Mulroy 1971-4-25 s.n. Orange Santa Ana Mountains: Upper Trabuco Canyon. Peninsular Ranges Comment
  RSA797915  Acer macrophyllum Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49825 Orange Santa Ana Mountains: Trabuco Canyon. 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
  UCD50245  Achnatherum coronatum Peter Kamb 1948-6-19 1090 Orange Erect or ascending cespitose perennial with stout stems 15-25dm high. Holy Jim Canyon, Santa Ana Mts. Orange County, California 609 Comment
  UCSB42431  Acmispon glaber Fountain, L. 1966-5-6 Orange Imperial Highway near Associated Road 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
  SEINET5327559  Acmispon glaber var. glaber I. W. Clokey 1932-3-1 5329 Orange Laguna Beach; slopes facing ocean 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
  SD234951  Acmispon maritimus A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34637 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir. 395 Comment
  UCSB52931  Acmispon micranthus Roberts, Jr., Fred 1983-5-19 Orange Laguna Beach: Sycamore Hills, near Laguna Canyon Rds.; 1.6 km. NNE jct. El Toro and Laguna Canyon Rds.; 5.1 km. ESE Signal Peak 130 Comment
  JEPS9162  Acourtia microcephala L. M. Booth 1932-8-4 1243 Orange Newport Bay Comment
Read comments
May 27 2017
  RSA171080  Acourtia microcephala R. F. Thorne 1963-7-26 32855 Orange Tin Mine Canyon above Beek's Spring, Trabuco District, Cleveland National Forest. 732 Comment
  SEINET8077122 Image available Acourtia microcephala A. C. Sanders, Fred M. Roberts 2008-6-17 35485 Orange Peninsular Range; Santa Ana Mtns.; Lomas de Santiago, West Loma Ridge Spur Road c. 1 km east of Sheriff's Training Facility and 1.6 km SW of Irvine Lake, between hwys 241 and 261 357 Comment
  UC1543097  Acourtia microcephala Donald G. Nelson 1936-6-5 434 Orange hills n Fullerton Comment
  RSA649082  Adenostoma fasciculatum Karl Price 1988-4-29 13 Orange An unnamed side canyon within Hot Springs Canyon. It is on Hot Springs Canyon Rd., 0.75 mi. North of Ortega Hwy. (74), 12.6 mi. East of San Juan Capistrano. 305 Comment
  UC1127728  Adenostoma fasciculatum H. E. Norton 1931-3-23 48 Orange 1 1/2 mi. s. Santa Ana Canyon (Plot #37, Corono #2); Corona Quad. Comment
  RSA5304  Adenostoma fasciculatum var. fasciculatum Carl B. Wolf 1932-12-19 1697 Orange Main divide of Santa Ana Mts. between Sierra Peak and Skyline Drive. 762 Comment
  RSA80653  Adenostoma fasciculatum var. fasciculatum Philip A. Munz, E. K. Balls 1952-8-19 17925 Orange West of Ortega Summit on road from Elsinore to Capistrano 793 Comment
  RSA749677  Adiantum capillus-veneris A. C. Sanders, Fred M. Roberts 2008-7-16 35836 Orange Lomas de Santiago, Dripping Springs off Limestone Canyon, c. 7.5 mi. ESE of Tustin 391 Comment
  IRVC22503  Adiantum jordanii Fred M. Roberts 1985-5-1 1693 Orange Aliso Canyon, 2.1km NNE Aliso Peak, Aliso Viejo 67 Comment
  UCR215286  Adiantum jordanii Fred M. Roberts 2008-5-14 6960 Orange Lomas de Santiago, Loma Ridge, upper Bee Flat Canyon below Loma Ridge Road, 1.3 km north of Bee Peak and 5.4 km NW of Bolero Lookout. Irvine Ranch Conservancy 337 Comment
  RSA0008824  Adiantum jordanii J. T. Howell 1927-6-24 197 Orange Aliso Canyon, Rancho Santa Ana. 274 Comment
  SEINET10470274  Adiantum jordanii G. B. Grant 1904-4-20 Grant 26 Orange Shady, rocky, moist. Catalina Island. Comment
  UCR239501  Agave americana A. C. Sanders, Fred M. Roberts 2008-4-8 34737 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, head of Hicks Canyon, S of Santiago Reservoir 351 Comment
  CAS-BOT-BC295625  Agnorhiza ovata P. C. Everett 1935-6-18 7198 Orange Santa Ana Mts., Main Divide Motorway, Los Pinos Potrero 914 Comment
  JEPS32110  Agnorhiza ovata P. C. Everett 1935-6-18 Orange Los Pinos Potrero, main divide motorway Santa Ana Mts. 914 Comment
  RSA696196  Agoseris retrorsa Keith E. Hoffmaster 1936-5-3 s.n. Orange Santa Ana Mts (Santiago Peak) Comment
  RSA708526  Agoseris retrorsa Fred M. Roberts, Robert L. Allen, Chris Barnhill, Nancy Hatfield 2005-5-30 6238 Orange Modjeska Peak, north slope along summit road, c.a. 50 meters NNW, by air, summit. 1643 Comment
  SD245195  Agrostis exarata R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49570 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74). Comment
  RSA0013960  Agrostis pallens Fred M. Roberts 2008-5-14 6968 Orange Lomas de Santiago: Loma Ridge, upper Bee Flat Cyn. below Loma Ridge Rd., 1.3 km N Bee Peak and 5.4 km NW Bolero Lookout, Irvine Ranch Conservancy. 377 Comment
  RSA773555  Agrostis pallens Fred M. Roberts 2008-6-3 7029 Orange Lomas de Santiago: Loma Ridge, East Fork Rattlesnake Canyon, ca. 2.6 km NE of Rattlesnake Reservoir spillway and 2.4 km ENE Bee Peak 235 Comment
  UCR242117  Agrostis pallens D. E. Bramlet 1983-5-28 1378 Orange South Coastal Plains, Dana Point, SW of Pacifc Coast Highway 73 Comment
  UCR193381  Agrostis viridis A. C. Sanders, T. B. Salvato 2008-5-13 35388 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
  UC729654  Ailanthus altissima E. R. Johnson May 1932 Orange Aliso Canyon; Santa Ana Canyon, Rancho Santa Ana 182 Comment
  RSA689740  Albizia distachya Scott D. White, Brian Leatherman 2003-10-30 9849 Orange Foothills; Oso Parkway crossing over Chiquita Canyon. 198 Comment
  RSA414866  Albizia lophantha Albert J. Perkins 1914-1-1 s.n. Orange Between (illegible) Beach and Aliso Canyon. Comment
  UC455141  Alisma plantago-aquatica I. J. Condit 1908-7-21 Orange Los Alamitos Comment
Read comments
Nov 20 2010
  RSA366464  Allium haematochiton M. B. Dunkle 1933-3-5 3085 Orange San Juan Canyon. Comment
  RSA176731  Allium haematochiton D. E. Breedlove 1962-3-9 1788 Orange 12.3 miles east of San Juan Capistrano on State [Highway] 74 244 Comment
  UCR280725  Allium praecox Mitch Provance, Jeremiah George 2017-3-20 317- 01 Orange West Coyote Hills, Fullerton, west side of Gilbert Street on land previously occupied by oil fields. 138 Comment
  RSA410096  Allophyllum glutinosum M. B. Dunkle 1934-6-18 3970 Orange Upper San Juan Canyon. 610 Comment
  RSA759103  Allophyllum glutinosum Robt. Allen, Genevieve Walden 2008-6-26 s.n. Orange Modjeska Peak, Western Arm, adjacent to junction of Main Divide Truck Trail and Old Truck Trail up to the summit of Modjeska Peak 1538 Comment
  RSA144  Alnus rhombifolia J. T. Howell 1927-7-21 452 Orange Santa Ana River, Rancho Santa Ana. 152 Comment
  UCR231356  Alnus rhombifolia A. C. Sanders, Kent Beaman 2011-9-27 39910 Orange Peninsular Range; Santa Ana Mtns., Maple Springs Truck Trail, 3.4 km NNW (340 deg. ) of Santiago Peak 1088 Comment
  UCR234157  Alnus rhombifolia Dick Newell, Judy Booth 2012-3-25 233 Orange Peninsular Range; Santa Ana Mtns., Maple Springs Road, 1.5 miles above Maple Springs entrance 615 Comment
  IRVC26717  Aloe striata Mark A. Elvin, J. Liou, J. Carpenter, J. Nguyen 2004-3-8 3183 Orange UCI Arboretum Southern Coastal 15 Comment
  UCR152756  Alopecurus saccatus D. E. Bramlet 2003-6-8 3462 Orange South Coast, Fairview Park in Costa Mesa, 152 m west of Canyon School and 396 m NW of intersection of Wilson & Canyon Dr. 24 Comment
  HSC79612  Amaranthus blitoides James Henrickson 1972-10-21 8069 Orange Newport Beach, S of Jamboree Rd., E of Irvine Coast Country Club near U.C. Irvine. 46 Comment
  UCR23424  Amaranthus hybridus Alfred R. Roos 1937-12-2 s.n. Orange Santa Ana Comment
  RSA1306  Amaranthus hybridus J. T. Howell 1928-9-20 1210 Orange Rancho Santa Ana, near ranch houses. 152 Comment
  UCSB48239  Amaranthus powellii Roberts, Fred 1981-7-8 Orange Rancho Mission Viejo; Calif. Rte. 74, 10.5 km. by road, ENE San Juan Capistrano 104 Comment
  RSA696431  Amaranthus retroflexus Keith E. Hoffmaster 1933-5-22 334 Orange Santa Ana Comment
  IRVC8604  Amblyopappus pusillus J. B. Anderson 1966-4-16 577 Orange Newport Beach; Corona del Mar; Buck Gully; "Little Corona Beach"; moist canyon bottom with small brooklet near stream. Southern Coastal 0 Comment
  POM147625  Amblyopappus pusillus F. M. Reed 1926-5-19 5360 Orange Roadside near Dana Point. 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
  POM201848  Ambrosia acanthicarpa L. M. Booth 1932-7-30 1340 Orange Santa Ana River, 2 miles from ocean Comment
  SEINET2029172 Image available Ambrosia bipinnatifida Lawrence M. Booth 1932-5-25 1110 Orange Balboa Island Comment
  CAS-BOT-BC13767  Ambrosia chamissonis Peter H. Raven 1957-9-28 11370 Orange North limits of Surfside Comment
  JEPS20090  Ambrosia chamissonis Peter H. Raven 1957-9-28 11370 Orange north limits of Surfside Comment
  SD143592  Ambrosia chamissonis R. D. Goeden, D. W. Ricker 1970-2-19 Orange Newport Beach, northwest edge of town between Seashore Dr., Neptune Ave., 56th and 58th streets 2 Comment
  SD39993  Ambrosia chamissonis Edith A. Purer 1932-8-31 4879 Orange Open areas of sand dunes along Route 101 Comment
  UC536897  Ambrosia chamissonis Lawrence M. Booth 1932-5-25 1110 Orange Balboa Island Comment
  RSA416942  Ambrosia chamissonis A. M. Johnson 1931-3-21 3817 Orange Newport. Comment
  POM202607  Ambrosia psilostachya L. M. Booth 1932-8-5 1355 Orange Bolsas Marsh. Comment
  RSA769  Ambrosia psilostachya J. T. Howell 1927-10-29 773 Orange Bryant Ranch near Long Beach. 15 Comment
  UCR224155  Ambrosia psilostachya Fred M. Roberts 2008-7-10 7066 Orange South Coast, Dana Point Headlands, CNLM Preserve, along north slopes above Dana Strand Beach, 0.8 km west norhwest of Marine Institute, Dana Point Harbor 45 Comment
  UCSB52398  Ambrosia psilostachya Roberts, Fred 1982-10-4 Orange Laguna Niguel; Niguel Hill, 2.7 km. NNE Aliso Peak; 1.5 km. WNW Alicia Fire Station 160 Comment
Read comments
Jan 25 2020
  IRVC21741  Ambrosia psilostachya var. californica Fred M. Roberts 1984-10-18 1429 Orange San Juan Canyon, 2.5km ENE San Juan Guard Station; 4.0km WNW Sitton Peak, Santa Ana Mountains 310 Comment
  SBBG14802  Amorpha californica P. H. Raven 1962-5-18 17752 Orange Silverado Cyn Truck Trail 7.3 mi above Gate 1280 Comment
  UCR193782  Amorpha californica A. C. Sanders, Fred M. Roberts 2008-7-3 35680 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor 415 Comment
  UCR138407  Amorpha fruticosa Scott D. White, Brian Leatherman 1997-6-12 5329 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
  RSA702989  Amsinckia intermedia D. E. Bramlet, Fred Roberts 2003-3-13 3333 Orange Donna O Neill Reserve. North East ridge of the reserve, 915m W of Cristianitos Rd. & 1.2km N of the E-W access road. 195 Comment
  UC971736  Amsinckia intermedia L. M. Booth 1932-5-30 1137 Orange Newport Bay Comment
  RSA0089447  Amsinckia intermedia Ken Greby 1985-4-18 17 Orange Alongside Laguna Canyon Rd. approx. 1.5 km. NE from El Toro Rd. 46 Comment
  RSA722350  Amsinckia intermedia E. Culver s.n. Orange Orange orchard. Comment
  UCD119276  Amsinckia intermedia Francia Chisaki 1957-4-3 926 Orange 6 miles S of Irvine, just S of El Toro near top of hill on Highway 101. Comment
  UCD119277  Amsinckia intermedia Francia Chisaki 1957-4-3 927 Orange 6 miles S of Irvine, just S of El Toro near top of hill on Highway 101. Comment
  RSA0127613  Amsinckia menziesii Fred M. Roberts 2016-4-26 8044 Orange Lomas de Santiago: South of Santiago Canyon Road in tributary to Lower Presida Canyon just southwest of Irvine Lake, 2.2 km S Irvine Lake dam spillway and 0.6 km SW Irvine Lake Park. 265 Comment
  IRVC204  Amsinckia menziesii var. intermedia L. Aldis 1965-4-27 Orange Irvine Park Comment
  IRVC212  Amsinckia menziesii var. intermedia C. Thompson 1965-3-20 Orange [Lower Santiago Canyon], Irvine Lake area. Santa Ana Mountains Comment
  IRVC22198  Amsinckia menziesii var. intermedia Fred M. Roberts 1985-4-8 1636 Orange San Joaquin Hills, Turtle Rock area, hill 1.1km SE French Hill, Irvine 196 Comment
  RSA0031721  Anagallis arvensis Caralisa Breidenbaugh, Mark Breidenbaugh 1992-5-1 8 Orange 1/2 mile south of Chino Hills State Park. 198 Comment
  RSA732166  Anagallis arvensis A. C. Sanders, Fred M. Roberts 2008-4-8 34729 Orange Peninsular Range: Lomas de Santiago, Loma Ridge, head of Hicks Canyon. S of Santiago Reservoir. 351 Comment
  UCR191435  Anagallis arvensis A. C. Sanders, Fred M. Roberts 2008-4-8 34729 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, head of Hicks Canyon, S of Santiago Reservoir 351 Comment
  UCR96318  Anagallis arvensis B. G. Pitzer 1996-4-30 2794 Orange San Joaquin Hills, Crystal Cove State Park, south of City of Irvine on State Hwy 1 (Pacific Coast Hwy) 15 Comment
  CAS-BOT-BC400332  Anemopsis californica E. Frost 1996-5-11 12 Orange Newport Back Bay, 150 yards in along bike path 7 Comment
  RSA0042764  Anemopsis californica Fred Roberts 2012-7-18 7671 Orange San Joaquin Hills: Newport Beach, Buck Gully, Buck Gully Trail, west end, just east of north terminus of Poppy Street and 2.1 km WNW summit of Pelican Hill. 37 Comment
  RSA698847  Anemopsis californica Frances Battey s.n. Orange Laguna Canon. Comment
  IRVC21319  Anthemis cotula Fred M. Roberts 1982-7-31 788 Orange 0.3km NNW Clemente Survey Mark; 1.2km NNE Civiv Center, San Clemente 220 Comment
  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
  POM7664  Antirrhinum kelloggii Philip A. Munz, R. D. Harwood 1920-4-24 3785 Orange Sierra [Freemont] Canyon 366 Comment
Read comments
Sep 17 2011
  RSA773516  Antirrhinum kelloggii Fred M. Roberts 1999-5-3 5206 Orange Lomas de Santiago: ridge between Limestone Canyon and Santiago Canyon Wash, 0.4 km SE Silverado School, and 3.9 km Bolero Lookout 351 Comment
  RSA725573  Antirrhinum multiflorum Fred M. Roberts, Robert L. Allen, Trish Smith 2007-6-15 6528 Orange dirt road along ridge between Black Star and Fremont Canyons, 4.4km ENE Irvine Lake spillway and 2.4km WSW Hidden Ranch. 662 Comment
  POM201705  Antirrhinum nuttallianum subsp. nuttallianum L. M. Booth 1932-12-6 1260 Orange Road side near Newport Beach Comment
  POM4240  Antirrhinum nuttallianum subsp. nuttallianum I. M. Johnston 1918-5-4 1888 Orange Back of Laguna Beach, moist shaded hillside 61 Comment
  UCSB47616  Antirrhinum nuttallianum subsp. nuttallianum Roberts, Fred 1980-5-3 Orange Santa Ana Mtns; San Juan Canyon; near mouth of Viejo Cyn; below Rte. 74; 2.5km by road ENE San Juan Guard Station; 0.5km WSW Bm 1100 288 Comment
  RSA584718  Antirrhinum nuttallianum subsp. nuttallianum Fred M. Roberts 1989-5-18 4368 Orange Santa Ana Mountains: Upper Gypsum canyon, above ridge road, ca. 6.4 km WSW Sierra Peak. 415 Comment
  RSA708286  Apiastrum angustifolium Scott D. White, Jennifer H. Jones 2005-3-31 10859 Orange City of Laguna Beach. 549 Nyes Place. Proposed home site on ca. 0.5 acre. 91 Comment
  RSA700187  Apium graveolens R. H. McArthur 1934-5-10 s.n. Orange 1916 Wash 4 mi. west 1 mi. south S.A. Comment
  UCR241665  Apocynum cannabinum Dick Newell, Judy Booth 2013-5-28 331 Orange Peninsular Range; Santa Ana Mtns., Agua Chinon Wash, 1.12 mi. due west of Bolero Point, Limestone Canyon Rd. 269 Comment
  RSA6027  Apocynum cannabinum B. D. Stark 1932-7-15 3876 Orange Ranch Santa Ana River bottom below the ranch houses. 1220 Comment
  IRVC20014  Apocynum cannabinum var. glaberrimum Gordon A. Marsh, K. G. Marsh 1981-7-26 Orange Cleveland National Forest; Lion Canyon, near mouth. Santa Ana Mountains Comment
  MACF024370  Araucaria Roberta Tiedeman 1977-4-27 Orange By geodesic dome Comment
  IRVC22985  Araujia sericifera Karlin G. Marsh 1986-9-12 Orange Yorba Linda; Santa Ana Canyon, Santa Ana River, north side, Featherly Park south of Esperanza Rd. Santa Ana Mountains 105 Comment
  OBI32690  Araujia sericifera O. F. Clarke 1968-8-24 s.n. Orange 2 mi E of Yorba Linda turnoff on Santa ana Cyn rd Comment
  UCR129346  Arbutus menziesii C. B. Wolf 1933-11-8 05534 Orange Santa Ana Mtns., Trabuco Canyon on the south wall opposite the Trabuco Truck Trail 915 Comment
  SD255137  Arbutus menziesii R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49826 Orange Santa Ana Mountains: Trabuco Canyon. Comment
  IRVC26421  Arctostaphylos australis Mark A. Elvin 2004-2-22 3147 Orange UCI Arboretum Southern Coastal 15 Comment
  SEINET10449344  Arctostaphylos catalinae James S. Miller 2001-12-15 Miller 10652 Orange Rancho Santa Ana Botanic Garden, Santa Ana, CA. Comment
  LA42396  Arctostaphylos glandulosa W. Pequegnat; 1938-4-16 sn Orange Santa Ana Mountains, Indian Truck Trail 914 Comment
Read comments
Aug 29 2015
  RSA629338  Arctostaphylos glandulosa C. J. Fotheringham, Jon E. Keeley 1996-6-24 27644 Orange Ca. 3 km west of Sierra Peak. 700 Comment
  UCR273488  Arctostaphylos glandulosa A. C. Sanders, Glen Morrison 2016-8-4 42608 Orange Peninsular Range; Santa Ana Mountains, dirt road off North Main Divide Road (Forest Rte 3S04), north of Los Pinos Spring, 3.87 km NW (286 deg. ) of El Cariso Fire Station 1101 Comment
  CAS-BOT-BC23109  Arctostaphylos glandulosa subsp. glandulosa Helen D. Leis 1904-5-1 723 Orange Blue Light Trail, Silverado Canyon, Santa Ana Mts. 670 Comment
  IRVC21236  Arctostaphylos glandulosa subsp. glandulosa Fred M. Roberts 1984-2-12 1182 Orange Santa Ana Mtns: 0.1km SW of Falcon Group Camp; 2.0km ESE Los Pinos Peak. Peninsular Ranges 1000 Comment
  RSA629322  Arctostaphylos glandulosa subsp. glandulosa Jon E. Keeley 1992-6-12 15500 Orange Road to Blue Jay Campground, 1 km south of Hotshot Camp, north of Ortega Hwy. (Hwy. 74). 800 Comment
  RSA629343  Arctostaphylos glandulosa subsp. glandulosa C. J. Fotheringham, Jon E. Keeley 1996-6-24 27641 Orange Ca. 3 km west of Sierra Peak. 700 Comment
  RSA629344  Arctostaphylos glandulosa subsp. glandulosa Jon E. Keeley 1992-6-12 15501 Orange Road to Blue Jay Campground, 1 km south of Hotshot Camp, north of Ortega Hwy. (Hwy. 74). 800 Comment
  RSA787500  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
  UC1120218  Arctostaphylos glandulosa subsp. zacaensis A. Lewis May 1934 415 Orange Trabuco Canyon Cleveland National Forest, Elsinore Quadrangle Comment
  UC1120328  Arctostaphylos glandulosa subsp. zacaensis H. A. Jensen 1937-11-4 415 Orange head of Trabuco Canyon Cleveland National Forest, Elsinore Quadrangle Comment
  UC718382 Image available Arctostaphylos pringlei subsp. drupacea P. C. Everett 1935-6-19 7232 Orange Main Divide Motorway 7 mi from summit of Santiago Peak (se); Santa Ana Mts. 1280 Comment
  RSA0025295  Arctotheca prostrata R. E. Riefner Jr. 2013-7-6 13 -125 Orange City of Irvine, Irvine Valley College, Irvine Center Dr. near College St. 37 Comment
  UCR247450  Arctotheca prostrata R. E. Riefner Jr. 2013-7-6 13- 125 Orange South Coast, city of Irvine, Irvine Valley College, Irvine Center Drive near College Street 37 Comment
  RSA683064  Aristida adscensionis Fred M. Roberts 2003-3-19 5609 Orange Donna O'Neill Land Conservancy: Ridges west of Cristianitos Cyn., 1,750m NNW Sycamore gate and 315m W Cristianitos Rd. (Canada Gobernadora., 33 deg 29'51'' N, 117 deg 34'13''W 192 Comment
  RSA542372  Aristida ternipes var. hamulosa Fred M. Roberts, K. Keane 1988-5-25 3989 Orange Rancho Mission Veijo: Lower Canada Chiquita, 2.0 kilometers SSE Medium Rancho Survey Marker., UTM 3710600m N, 443550m E. 91 Comment
  IRVC479  Artemisia californica C. Thompson 281965 Orange Corona del Mar, Corona Highlands. Newport Beach Comment
  RSA659354  Artemisia californica P. Shirokawa 1998-5-15 36 Orange Cleveland National Forest- Trabuco Ranger District, 2.3 miles from Ortega Highway (State Highway 74) on North Main Divide Road 960 Comment
  RSA722100  Artemisia californica R. E. Riefner 2006-8-25 06 -410 Orange City of Dana Point, Salt Creek Beach Park, vicinity of Dana Strand Rd. and Selva Rd. 0 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
  UCR247873  Artemisia californica Fred M. Roberts 2012-9-6 7700 Orange SAN JOAQUIN HILLS: Buck Gully, Buck Gully Trail, west end near Poppy Street entrance, 2.1 km WNW Pelican Hill summit. 37 Comment
  SEINET10953172  Artemisia californica Charlene A. Bennett, David B. Dunn; Chester T. Dziekanowski 1976-7-21 Bennett 440 Orange Cultivated plants collected in and around the condominium - Pacific Island Estates in Laguna Hills; some native shrubs, etc. 152 Comment
  CHSC35807  Artemisia dracunculus James Henrickson 1973-10-21 8052 Orange Eastern Anaheim, 2 blocks E of Imperial Hwy along La Palma Ave., just N of Santa Ana River. 60 Comment
  RSA0042766  Artemisia palmeri Fred M. Roberts 2012-7-18 7669 Orange SAN JOAQUIN HILLS: Newport Beach, Buck Gully, Buck Gully Trail, west end, just east of north terminus of Poppy Street and 2.1 km WNW summit of Pelican Hill. 37 Comment
  RSA703364  Arthrocnemum subterminale R. E. Riefner Jr. 2004-5-6 4 -172 Orange Newport Beach, north side of Pacific Coast Hwy., west of Bayside Drive near Newport Dunes Beach Club. 10 Comment
  IRVC9354  Asclepias eriocarpa Roberta Seibel 1966-5-30 157 Orange 0.5 miles W Old Rancho Santa Ana Botenical Garde on Orangethorpe Ave. by side of raod. Comment
Read comments
May 26 2019
  JEPS5080  Asclepias fascicularis L. M. Booth 1932-7-21 1291 Orange Anaheim Creek Comment
  UCR46568  Asclepias fascicularis B. G. Pitzer, D. C. Hawks 1986-10-21 0353 C Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, c. 10 mi east of Santa Ana, in hills N and east of South Coast Gun Club on Jeffrey Road in Hicks Canyon 183 Comment
  SEINET7113596  Asclepias fruticosa M. B. Sady 1996-6-19 s.n. Orange The University of California, Irvine Arboretum, on Campus Drive, UCI Comment
  RSA743383  Asparagus asparagoides Fred M. Roberts 2008-5-27 7002 Orange Dana Point: Dana Point Headlands, CNLM Preserve near NE Gate, 0.5km W Marine Institute (Dana Point Harbor). 75 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
  RSA686305  Aspidotis californica T. R. Pray 1964-1-1 2051 Orange San Juan Canyon, near first bridge past National Forest entrance Comment
  POM201855  Aster bernardinus L. M. Booth 1933-9-8 1392 Orange Anaheim Marsh. 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
  RSA701753  Astragalus brauntonii Elisabeth Landis, Valentin Arvizu, Cliff McLean, Kadest Ketsella 2004-9-6 s.n. Orange Specimen located against wooden cofferdam in wet sand in CalTrans debris basin on S side of 91 Freeway in Coal Canyon. Comment
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Nov 22 2011
  RSA749305  Astragalus gambelianus Fred M. Roberts 1999-4-21 5178 Orange Lomas de Santiago: Loma Ridge, ridges north of Dripping Springs Cyn., 1.5 km W Silverado Sch. and 4.8 km NNW Bolero Lookout. 365 Comment
  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
  SEINET892558  Astragalus leucophyllus Leslie Freeman 1963-1 128 Orange Diamond Bar Ranch in Brea Canyon. Santa Ana Mt. Range. Pacific drainage area. 304 Comment
  RSA554621  Astragalus trichopodus Scott D. White 1992-10-20 968 Orange Vicinity of city of Brea, Immediately N of Carbon Canyon Rd & E of Placentia Avenue +/-1mi (air) SSE of Tonner Canyon. 183 Comment
  SEINET7796213  Astragalus trichopodus var. lonchus E. A. Bourdo 1975-7-25 s.n. Orange Crest of hills above Niguel Beach Comment
  UC1980276  Atriplex R. E. Riefner Jr. 2006-2-12 06 -24 Orange North end of City of San Clemente, along I-5 Freeway North, immediately south of Camino de Estrella exit ramp. Comment
  RSA737374  Atriplex R. E. Riefner 2006-10-19 06 -546 Orange City of Lake Forest, 0.5 mile N of Alton Pwy on E side of SR 241. 230 Comment
  CAS-BOT-BC248871  Atriplex amnicola R. E. Riefner, Jr. 2006-2-12 06 -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
  RSA737233  Atriplex amnicola R. E. Riefner 2006-2-12 06 /21/2015 Orange N end of City of San Clemente, along I5 N, immediately S of Camino de Estrella exit ramp. 66 Comment
  RSA678456  Atriplex californica Valerie Soza, Kevin B. Clark, LeRoy Gross, Will Miller, Fred Roberts, Gary D. Wallace 2001-4-4 1109 Orange Seal Beach National Wildlife Refuge: Seal Beach U. S. Naval Weapons Station, across access road from Nature Center (Bldg 226). 3 Comment
  RSA716777  Atriplex californica Fred M. Roberts, Chris M. Barnhill 2004-7-10 6072 Orange Laguna Beach: Crescent Bay, at base of Twin Points. 3 Comment
  RSA747714  Atriplex californica Fred M. Roberts 2008-7-10 7073 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
  RSA615542  Atriplex californica Robb Hamilton 1989-7-20 s.n. Orange Newport Beach: along Pacific Coast Hwy just west of jct with Newport Blvd. 0 Comment
  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
  RSA260  Atriplex canescens J. T. Howell 1927-10-22 759 Orange Near Eastern Boundary, Rancho Santa Ana. 152 Comment
  RSA422250  Atriplex canescens L. M. Booth 1932-7-4 1249 Orange W side of inland arm of Newport Bay. 3 Comment
  RSA452452  Atriplex canescens Albert J. Perkins 1909-7-4 s.n. Orange Laguna Beach. Comment
  UCR221461  Atriplex canescens Dick Newell, Don Millar, Steve Shinn 2010-9-28 38 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Hicks Haul Road (Jeffrey Rd.) 1/2 mile east of Hwy 241 toll road 236 Comment
  CAS-BOT-BC170192  Atriplex canescens subsp. canescens I. M. Johnston 1918-9-3 2149 Orange Laguna Beach 6 Comment
  CAS-BOT-BC170196  Atriplex canescens subsp. canescens John Thomas Howell 1927-10-22 3162 Orange In hills on n. side of Santa Ana Canyon. 152 Comment
  IRVC24454  Atriplex canescens subsp. canescens Fred M. Roberts 1985-11-20 2560 Orange Newport Back Bay, near Camp Survey Mark, Newport Beach 2 Comment
  UCR98213  Atriplex canescens subsp. canescens B. G. Pitzer 1996-4-30 2789 Orange San Joaquin Hills, Crystal Cove State Park, south of City of Irvine on State Hwy 1 (Pacific Coast Hwy) 15 Comment
  CAS-BOT-BC172632  Atriplex coulteri Louis C. Wheeler 1934-1-14 2363 Orange Aliso Creek near Laguna 76 Comment
  CAS-BOT-BC172636  Atriplex coulteri LeRoy Abrams 1903-4-18 3270 Orange Trabuco Arroyo near Capistrano Comment
  POM654  Atriplex coulteri L. R. Abrams 1903-4-18 3270 Orange Near San Juan Capistrano Comment
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Feb 4 2009
  RSA655236  Atriplex coulteri D. E. Bramlet 1998-5-25 2628 Orange 120m north of the Newport Beach Library and 61m west of McArthur Blvd. 914m south of San Miguel Drive. 15 Comment
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Feb 3 2015
  UCR37775  Atriplex coulteri Steve Boyd 1981-5-13 s.n. Orange South Coast, Pelican Hill, Irvine Ranch Property, San Joaquin Hills south of Corona del Mar 218 Comment
  CAS-BOT-BC170606  Atriplex glauca A. C. Sanders 2008-4-29 35139 Orange Lomas de Santiago, western end of Loma Ridge on road to sheriff's trianing facility, c. 1.5 mi. SW of Santiago Reservoir, Black Star Canyon 7.5' - Peninsular Range, Santa Ana Mtns. 335 Comment
  RSA0028779  Atriplex glauca R. E. Riefner Jr. 2002-5-4 20 -87 Orange City of Dana Point, beach W of Pacific Coast Hwy. near mouth of Salt Creek. 15 Comment
  SD219022  Atriplex glauca R. E. Riefner Jr. 2002-5-4 20 87 Orange City of Dana Point, beach west of Pacifi Coast Highway near mouth of Salt Creek. 14 Comment
  SD243320  Atriplex glauca R. E Riefner 2006-3-19 06 52 Orange City of Newport Beach, near Avocado Ave. and San Nicolas Drive, W of MacArthur Blvd. 77 Comment
  RSA743558  Atriplex glauca R. E. Riefner 2006-2-1 6 -30 Orange City of Newport Beach, W side of MacArthur Blvd. near San Joaquin St. 75 Comment
  RSA708449  Atriplex lentiformis Mark Elvin 2004-5-2 3423 Orange Southern Coastal, Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7 km (air) NNW of UC Irvine Campus center. 3 Comment
  CLARK-A1528-1183  Atriplex patula subsp. hastata John C. Roos 1949-10-1 4678 Orange Doheney Beach 1-3 Comment
  RSA638190  Atriplex polycarpa Scott D. White 1998-10-15 7185 Orange Yorba Linda: 1/2 mile south of Telegraph Cyn. Between Ohio St. and Fairmont. Proposed for development 152 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
  UC536972  Atriplex rosea Lawrence M. Booth 1932-8-5 1350 Orange West Newport Beach West Newport Beach (salt marsh) Comment
  POM201896  Atriplex rosea L. M. Booth 1932-7-4 s.n. Orange Newport Lagoon 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
  CLARK-A1528-4911  Atriplex semibaccata John C. Roos 1949-10-10 4679 Orange Doheney Beach Comment
  HSC34526  Atriplex semibaccata J. D. Ackerman, A. M. Montalvo 1974-3-28 167 Orange S Laguna, by S Laguna Sanitary Station Comment
  IRVC9295  Atriplex semibaccata B. T. Gittins 1966-6-24 1421 Orange Crescent Beach; coastal bluff. Laguna Beach Comment
  RSA743462  Atriplex semibaccata Fred M. Roberts 2008-7-10 7070 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
  RSA743498  Atriplex semibaccata Fred M. Roberts 2008-7-10 7070 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
  RSA234479  Atriplex semibaccata James Henrickson 1970-7-25 5034 Orange 3.5 miles NW of Huntington Beach on sandy margin of Bolsa Bay, 1/4 mile SE of Warner Ave. along Pacific Coast Hwy. 0 Comment
  RSA478406  Atriplex semibaccata N. C. Cooper 1942-11-9 889 Orange Balboa. Comment
  CAS-BOT-BC176754  Atriplex serenana var. serenana John Thomas Howell 1927-7-5 2650 Orange Along road, Santa Ana River bottom, Santa Ana [Canon] Canyon 152 Comment
  CAS-BOT-BC176758  Atriplex serenana var. serenana John Thomas Howell 1927-6-30 2616 Orange 7 miles east of Long Beach 15 Comment
  RSA678745  Atriplex watsonii Valerie Soza, Kevin B. Clark, LeRoy Gross, Will Miller, Fred Roberts, Gary D. Wallace 2001-4-4 1100 -b Orange Seal Beach National Wildlife Refuge: Seal Beach U. S. Naval Weapons Station, across access road from Nature Center (Bldg 226). 3 Comment
  JEPS68451  Avena barbata L. M. Booth 1932-5-12 1040 Orange Newport Bay Comment
  UCD56188  Avena barbata Ira L. Wiggins 1966-2-18 20450 Orange 1/2 mile west of entrance to Rancho Santa Ana. Near end of Orangethorpe Ave. Comment
  RSA40  Avena barbata J. T. Howell 1927-6-17 166 Orange Botany Garden, Rancho Santa Ana. 152 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
  RSA697311  Avena fatua Keith E. Hoffmaster 1936-4-14 s.n. Orange Santa Ana Comment
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Nov 20 2011
  RSA0046823  Avena fatua Jason Berkley 1994-5-3 14 Orange Yorba Linda, grassy field off Bastuchury Rd. 50 yds from Casa Loma Ave. Comment
  RSA184189  Avena fatua I. L. Wiggins 1966-3-22 20555 Orange Silverado Canyon about 0.5 mile below entrance to Cleveland National Forest. Comment
  CAS-BOT-BC66214  Azolla filiculoides John Thomas Howell 1927-7-6 2663 Orange Santa Ana River bottom, Santa Ana Canyon 152 Comment
  IRVC29728  Azolla filiculoides Mark A. Elvin, Barry S. Nerhus 2006-11-4 5240 Orange Huntington Beach; 1.5 km SW of Wintersburg, SW of jct Slater and Goldenwest; Shipley Nature Center. Southern Coastal 1 Comment
  RSA13  Azolla filiculoides John Thomas Howell 1927-7-6 284 Orange Santa Ana River bottom, Rancho Santa Ana 152 Comment
  RSA93209  Baccharis douglasii F. W. Peirson 1923-9-7 4035 Orange Holy Jim Canyon, trail to Santiago Peak, Santa Ana Mts 595 Comment
  RSA93210  Baccharis douglasii F. W. Peirson 1924-8-29 5092 Orange 3 miles N of Huntington Beach Comment
  IRVC18079  Baccharis emoryi Gordon A. Marsh 1980-10-24 Orange Irvine: San Joaquin Frreshwater Marsh, south end, earth dam, pond 4. southern coastal Comment
  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
  RSA788  Baccharis emoryi J. T. Howell 1927-10-22 764 Orange Santa Ana River bottom, Rancho Santa Ana 152 Comment
  JEPS30717  Baccharis glutinosa Peter H. Raven 1961-10-15 16861 Orange 2 mi se of Sunset Beach (Coast Highway); Coast Highway Comment
  RSA528054  Baccharis pilularis A. C. Sanders 1990-10-6 10200 Orange Newport Bay, North Star County Beach area on the SW end of the bay, ca. 2 km inland of Hwy 1 1 Comment
  IRVC21770  Baccharis pilularis subsp. consanguinea Fred M. Roberts 1984-11-27 1442 Orange Novia St. bridge over San Juan Creek, 0.6km S Bench Mark 133, San Juan Capistrano 31 Comment
  CHSC13483  Baccharis salicifolia T. R. Casale 1974-4-11 7 Orange Ca. 1.3 mi NE of the Mission San Juan Capistrano on Hwy 24. 42 Comment
  SEINET899257  Baccharis salicifolia L. Freeman 1963-1 142 Orange Diamond Bar Ranch in Brea Canyon, Santa Ana Mountains. 244 Comment
  JEPS21280  Baccharis salicina John Thomas Howell 1927-10-22 3166 Orange Rancho Santa Ana Santa Ana River bottom 152 Comment
  UCD129396  Baccharis salicina P. B. Kennedy 1925-1-12 1 Orange Irvine Ranch, on range. Comment
  UCD129397  Baccharis salicina Ira L. Wiggins 1965-11-6 20338 Orange Kraemer Oil Estates, near well no. 15, near end of county road constituted by continuation of Orangethorpe Ave. Comment
  RSA638194  Baccharis sergiloides Scott D. White 1998-10-15 7187 Orange Yorba Linda: 1/2 mile south of Telegraph Cyn. Between Ohio St. and Fairmont. Proposed for development. 152 Comment
  RSA699553  Baccharis viminea Kenneth Beard 1934-02 s.n. Orange Walnut grove on Freeman Street, Santa Ana. Comment
  RSA649689  Bahiopsis laciniata R. E. Riefner 2000-7-2 20 -602 Orange NCCP North Ranch Policy Plan Area. Along Black Star Canyon Road and along Silverado Creek. Comment
  SEINET5585508  Bahiopsis laciniata R. E. Riefner Jr. 2013-1 13 -56 Orange Anaheim Hills, vicinity Hidden Canyon Rd. at Avenue De Santiago. 305 Comment
  UCSB48022  Barbarea orthoceras Roberts, Fred 1981-4-11 Orange Santa Ana Mtns.: meadow between Falcon Group Camp and Blue Jay Campground; 0.2 km. NNE Blue Jay Campground 1089 Comment
  CDA7901  Bassia hyssopifolia Adam Ontiveros 2008-7-8 PDR# 1543672 Orange Anaheim, 1750 S. Douglass Rd 0 Comment
  CLARK-A1528-966  Bassia hyssopifolia Patricia A. Andrews 1975-6-26 5909 Orange Capistrano Bay Beach 9 Comment
  IRVC24276  Bassia hyssopifolia Fred M. Roberts, G. A. Marsh 1985-10-26 2524 Orange Santa Ana River: adjacent to Huntington Beach; 0.7km SSW Adams Street bridge. southern coastal 4 Comment
  SD146318  Bassia hyssopifolia R. D. Goeden, D. W. Ricker 1965-7-7 Orange Tustin township, near Peters Canyon, Channel, east of Santa Ana Marine Corps Air Station. 60 Comment
  POM202235  Bassia hyssopifolia L. M. Booth 1932-8-5 1348 Orange West Newport Beach Comment
  RSA689547  Bassia hyssopifolia R. E. Riefner 2003-8-17 3 -332 Orange Costa Mesa, Talbert Regional Park, Discovery Walk Road and Balboa Avenue. 12 Comment
  UCSB48040  Bassia hyssopifolia Roberts, Jr., Fred 1981-9-26 Orange Newport Beach: Pacific Coast Highway, 0.3km W Newport Blvd.; 0.4 km. SE Bench Mark 10 3 Comment
  CAS-BOT-BC75516  Batis maritima Peter H. Raven 1958-7-5 13559 Orange Just north of Surfside. Comment
  RSA30658  Batis maritima L. C. Wheeler 1932-6-25 858 Orange Newport Bay. 3 Comment
  RSA678457  Batis maritima Valerie Soza, Kevin B. Clark, LeRoy Gross, Will Miller, Fred Roberts, Gary D. Wallace 2001-4-4 1110 Orange Seal Beach National Wildlife Refuge: Seal Beach U. S. Naval Weapons Station, across access road from Nature Center (Bldg 226). 3 Comment
  RSA768518  Batis maritima Justin M. Wood 2009-12-1 1388 Orange Santa Ana River: marsh just upstream of Pacific Coast Highway. 0 Comment
  RSA5334  Bebbia juncea B. D. Stark 1933-1-3 4480 Orange Rancho Santa Ana near pear orchard. 122 Comment
  RSA790  Bebbia juncea J. T. Howell 1927-6-2 13 Orange Sandstone Ridge, Botany Garden, RSA. 152 Comment
  UCR193051  Bebbia juncea A. C. Sanders, Mitch Provance 2008-5-20 35404 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago area, Santiago Creek Canyon, c. 3/4 mile below Modjeska Canyon confluence 355 Comment
  IRVC22019  Bebbia juncea var. aspera D. Bramlet 1985-7-2 AH-1 Orange Anaheim Hills Golf Course, on knoll near #3 green, Anaheim 183 Comment
  IRVC22020  Bebbia juncea var. aspera D. Bramlet 1985-7-2 AH-1 Orange Anaheim Hills Golf Course, on knoll near #3 green, Anaheim 183 Comment
  RSA97709  Berula erecta F. W. Peirson 1924-8-29 5071 Orange roadside 4 miles south of Santa Ana. Comment
  UCR99879  Beta macrocarpa Scott D. White 1993-3-5 1121 Orange Tustin. Marine Air Corps Air Station: SE of Red Hill Ave and NE of Barranca 15 Comment
  UCR237916  Beta vulgaris Mark A. Elvin 2003-2-2 2296 Orange South Coast, San Joaquin Marsh, UCI campus SSE of intersection of Jamboree Blvd. and Campus Dr. 2 Comment
  CAS-BOT-BC128000  Bidens pilosa Ira L. Wiggins 1965-10-24 20287 Orange Bank of storm drain at corner of Yorba Linda and State College Blvds., Fullerton Comment
  RSA652086  Bloomeria crocea Bob Edwards 1948-5-2 sn Orange Orange: 4.5 miles east of Orange in an open field near a Catholic cemetery. 107 Comment
  RSA652654  Bloomeria crocea Diane T. Liggett 1981-5-16 3 Orange Riverside Freeway (91) east to Imperial Hwy, south to Nohl Ranch Road, east to Serrano Ave., south on Hidden Cyn. Road, .5 km into Weir Cyn. Comment
  UCSB52906  Bolboschoenus maritimus Roberts, Fred 1984-8-6 Orange Irvine: UC Irvine, along Abode Circle Road; 0.9 km. ENE campus center; 2.3 km. W French Hill 30 Comment
  UCSB54129  Bolboschoenus maritimus Roberts, Fred 1985-6-12 Orange Laguna Niguel: Alicia Pkwy., 2.1 km. by road SW La Paz Rd.;1.0 km. W Sulphur Creek Reservoir, UTM 37117mN, 433525mE 67 Comment
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Feb 22 2019
  UCR192080  Bothriochloa barbinodis A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35281 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir 300 Comment
  JEPS16061  Bowlesia incana Alice King Apr., 1908 Orange near Anaheim (Santa Ana River); Santa Ana River Comment
  POM190177  Bowlesia incana Marcus E. Jones 1931-3-23 28128 Orange Laguna. Comment
  UCR222385  Bowlesia incana Mark A. Elvin 2003-1-26 2246 Orange South Coast, Irvine, UC Irvine Open Space Preserve, NE side, between core of UCI campus (E Peltason Dr.) and Hwy 73 69 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
  CDA24706  Brassica nigra T. C. Fuller 1962-4-5 8143 Orange East of Highway 101, San Clemente. 0 Comment
  CDA25879  Brassica nigra D. D. Nguyen, C. Nguyen 2006-2-4 3 Orange Southern Coastal; San Joaquin Marsh; northwest edge of Marsh. Comment
  RSA0066334  Brassica nigra B. Pitzer 1996-4-30 2808 Orange Crystal Cove State Park, S of City of Irvine on State Hwy 1 (Pacific Coast Hwy). 15 Comment
  RSA0084260  Brassica nigra Caralisa Breidenbaugh, Mark Breidenbaugh 1992-1-5 19 Orange 1/2 mile south of Chino Hills State Park Boundary. 198 Comment
  CAS-BOT-BC36770  Brassica rapa Ira L. Wiggins 1966-3-5 20512 Orange About 0.5 mile west of El Toro Post Office, along Highway S-18. Comment
  UCD114850  Brassica rapa Ira L. Wiggins 1965-11-7 20359 Orange Between State College Blvd. and Troy High School campus, Fullerton. Comment
  RSA0069232  Brassica tournefortii Fred M. Roberts, Megan Lulow 2009-3-18 7137 Orange Santa Ana Mtns. Region: Lomas de Santiago: Loma Ridge at Calochortus Ridge, near East Loma Ridge Road, 2.6 km NW Bee Peak, &3.4 km NE of Rattlesnake Reservoir Dam. 375 Comment
  RSA124713  Brickellia californica E. K. Balls, Percy C. Everett 1957-11-25 22836 Orange 1 mi. NE from Trabuco Oaks. 549 Comment
  RSA779934  Brodiaea filifolia R. E. Riefner Jr. 2011-5-20 20760 Orange Newport Beach, Coastal Peak Park, East Coastal Peak Road at Ridge Park Road 305 Comment
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Dec 7 2014
  SD240172  Brodiaea filifolia Jim Dice, Larry Vierheilig, Michael Lindsay 1996-5-9 Orange Aliso & Wood Canyons Wilderness Park. Aliso canyon, grassland on other side of bike path just N of Aliso creek. Comment
  UCR142297  Brodiaea filifolia D. E. Bramlet, Sandy Leatherman 1998-5-21 2625 Orange Slope adjacent to a tributary of Segunda Deshecha Canada, c. 610 m N of the exisitng access road (Telaga Valley Dr.) and 2.9 km N of Avenida Pico. c. 1.93 km west of Cristianitos Canyon and 640 m west of Wilson Camp Rd 201 Comment
  RSA581665  Brodiaea jolonensis Tony Bomkamp 1995-06 s.n. Orange Rancho Mission Viejo, ridge west side of Canada Gobernadora, west of Casper Regional Park. 140 Comment
  RSA587119  Brodiaea jolonensis R. E. Riefner 1994-6-15 94 -253 Orange South bluffs, San Clemente State Beach. Comment
  CAS-BOT-BC144299  Bromus arizonicus Ira L. Wiggins 1966-4-22 20617 Orange Shoulder of pavement along Associated Road between Yorba Linda Boulevard and Imperial Highway. Comment
  RSA184166  Bromus arizonicus I. L. Wiggins 1966-3-1 20482 Orange Along W edge of California State College, Fullerton. Comment
  RSA184176  Bromus arizonicus I. L. Wiggins 1966-4-22 20617 Orange Along Associated road between Yorba Linda Boulevard and Imperian Highway. Comment
  CLARK-A1528-4534  Bromus carinatus John C. Roos 1937-5-20 2079 Orange San Juan Capistrano 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
  UCD57999  Bromus carinatus Ira L. Wiggins 1966-3-16 20528 Orange Near entrance to Firestone Boy Scout Reservation. Comment
  SEINET14397348  Bromus carinatus D. L. Croninger 1964-12-15 18 Orange Fullerton Jr. College on Chapman Ave., Fullerton. Comment
  RSA184072  Bromus catharticus I. L. Wiggins 1965-11-5 20326 Orange In orange grove on N side of Chapman Avenue, near Kraemer Road. Comment
  POM364007  Bromus catharticus Albert J. Perkins 1920-2-12 s.n. Orange Santa Ana. Comment
  RSA0013959  Bromus diandrus Fred M. Roberts 2008-5-7 6939 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
  RSA699982  Bromus grandis Rankin s.n. Orange Santa Ana. 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
  RSA598967  Bromus hordeaceus Scott D. White 1997-3-28 4845 Orange Santa Ana Mountains: above Modjeska Canyon, proposed water tank site. 427 Comment
  RSA696620  Bromus hordeaceus Keith E. Hoffmaster 1935-3-17 s.n. Orange Near El Toro (Trabuco rd.) Comment
  SEINET11675552  Bromus hordeaceus J. F. Bright, Wyman, C. 1933-1 8208 Orange near Del Toro Comment
  RSA685934  Bromus hordeaceus subsp. hordeaceus Fred M. Roberts, David E. Bramlet 2003-3-27 5618 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, west slopes of Chistianitos Cyn., 0.69km N Sycamore Gate, 0.96km W Chistianitos Rd. 122 Comment
  UCR192104  Bromus madritensis A. C. Sanders, Fred M. Roberts, Amber O'Neal, D. E. Bramlet 2008-5-9 35306 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along old dirt road, c. 1.25 mi. ESE of Walnut Cyn Reservoir 340 Comment
  RSA0127416  Bromus madritensis subsp. rubens Fred M. Roberts 2016-3-17 8011 Orange San Joaquin Hills: City of Irvine, Bommer Canyon, east fork, 0.3 km ESE Cattle Camp near East Fork Trail. 152 Comment
  RSA699743  Bromus pseudolaevipes Fred M. Roberts, David E. Bramlet 2003-5-15 5876 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, Cristianitos Cyn., 1.41km SSW Gato Gate and 0.35km NNW of SDG&E substation. 122 Comment
  RSA696608  Bromus racemosus Rankin s.n. Orange Corona Del Mar Comment
  RSA681951  Bromus rubens Fred M. Roberts, David E. Bramlet 2003-3-7 5565 Orange Donna O'Neill Land Conservancy; West slopes of Christianitos Canyon, Middle Ridge Trail, 0.1km NW Gato Gate. 123 Comment
  POM363950  Bromus rubens E. A. McGregor 1966-5-15 s.n. Orange Ortega Highway, between Lake Elsinore and San Juan Capistrano. Comment
  RSA0042732  Bromus rubens David Barrios 1991-5-1 18 Orange 1500 ft. Northwest of Fairmont Ave and Quail cir., Yorba Linda. 365 Comment
  RSA184124  Bromus rubens I. L. Wiggins 1966-3-16 20526 Orange Entrance to Firestone Boy Scout Reservation. Comment
  RSA590951  Bromus rubens Fred M. Roberts 1991-5-2 4775 Orange San Joaqui Hills, Laguna Canyon, Laguna Laurel, Just W of Laguna Canyon Road, 2km N jct El Toro Road, 4.5km E Signal Peak., UTM Z113718000mN, 4 29 200m E 110 Comment
  RSA0022428  Bromus tectorum R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49786 Orange Santa Ana Mountains: Trabuco Canyon Comment
  CDA5337  Bupleurum lancifolium E. Smith 1967-4-3 Orange Orange. 0 Comment
  POM202606  Cakile edentula subsp. edentula L. M. Booth 1932-5-27 1131 Orange Newport Beach Comment
  CAS-BOT-BC36894  Cakile edentula var. edentula L. R. Abrams 1917-6-23 6574 Orange Balboa. 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
  RSA737894  Calandrinia breweri R. E. Riefner 2008-5-15 08 -82 Orange Irvine Ranch Reserve, N Irvine Ranch, eastern Fremont Canyon area, Black Star SCE road. 549 Comment
  SD234996  Calandrinia breweri A. C. Sanders, Fred M. Roberts, Amber ONeal 2008-5-9 35314 Orange Peninsular Range: Santa Ana Mountains; Weir Canyon, along fire line/bulldozer cut, c. 1.5 mi. east of Walnut Canyon Reservoir (Black Star Sanyon 7.5' Q) 345 Comment
  RSA737845  Calandrinia breweri R. E. Riefner 2008-5-16 08 -86 Orange Irvine Rach Reserve, North Irvine Ranch, lower eastern Fremont Canyon area, Lakeview SCE Rd. 549 Comment
  RSA732277  Calandrinia ciliata A. C. Sanders, Fred M. Roberts 2008-4-22 35043 Orange Lomas de Santiago, valley at south end of Loma Ridge and at head of Limestone Canyon, c. 2.5 miles SW of Silverado, above spring shown on topo map. 427 Comment
  RSA743380  Calandrinia ciliata Fred M. Roberts 2008-4-9 6860 Orange Dana Point: Dana Point Headlands, CNLM Preserve near Outlook 2, 0.7 km W Marine Institute (Dana Point Harbor). 52 Comment
  SD234997  Calandrinia ciliata A. C. Sanders, Fred M. Roberts 2008-3-25 34576 Orange Peninsular Range: Santa Ana Mountains; saddle on ridge near head of Weir Canyon, 5.3 miles ENE of Villa Park, 3.1 mile N of (Santiago Reservoir) Irvine Lake (Black Star Canyon7.5' Q) 405 Comment
  CDA5112  Callistemon viminalis R. E. Riefner Jr. 2007-4-1 07 -163 Orange City of Laguna Niguel, Oso Creek, ca 1.5 miles north from Paseo De Colinas Street on Camino Capistrano Street. Comment
  RSA739270  Callistemon viminalis R. E. Riefner Jr. 2007-4-1 7 -163 Orange City of Laguna Niguel, Oso Creek, ca. 1.5 miles north from Paseo De Colinas Street on Camino Capistrano Street. 88 Comment
  RSA708813  Callitriche marginata Fred M. Roberts, Robert L. Allen, Chris Barnhill, Carol A. Roberts 2005-4-10 6162 Orange Costa Mesa: Fairview Park, west of north end of Canyon Drive, c.a. 0.2km WNW Marison Special Education Center (Canyon Sch. on topos). 24 Comment
  RSA377257  Calochortus albus Albert J. Perkins 1914-5-3 s.n. Orange Trail to Santiago Peak. Comment
  POM13942  Calochortus catalinae William M. Pierce 1922-4-11 s.n. Orange Santa Ana Mountians, Santa Ana Canyon. Comment
  RSA582810  Calochortus catalinae Mark Elvin 1995-05 4 Orange Santa Ana Mountains: Starr Ranch, National Audubon Society; Bell Creek, junction of Leslie Love Trail. 213 Comment
  RSA625801  Calochortus catalinae Scott D. White, Noel Davis 1998-4-24 6343 Orange Santa Ana Mountains foothills. Mission Viejo Area: Aliso Creek watershed, E of El Toro Road, just N of the junction with Valley Vista Way. Large proposed subdivision called ''Saddleback Meadow.'' 305 Comment
  UCR192103  Calochortus catalinae A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35289 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir 300 Comment
  UCR192228  Calochortus catalinae A. C. Sanders, Fred M. Roberts 2008-5-6 35260 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
  UCR209330  Calochortus catalinae Fred M. Roberts 2009-4-11 6886 Orange Lomas de Santiago, Loma Ridge, upper Dripping Springs Canyon, 0.9 km northeast of Bee Peak and 1.2 km west-northwest of Dripping Springs 448 Comment
  SEINET12057832  Calochortus catalinae Unknown 2000-4-17 2987 Orange 1.9 km W of Blind Canyon & 274 m NE of Irvine Park, 244 m SW of MWD access road 220 Comment
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Oct 13 2017
  RSA708370  Calochortus invenustus Fred M. Roberts, Robert L. Allen, Chris Barnhill, Nancy Hatfield 2005-5-30 6241 Orange Modjeska Peak summit, c.a. 60m south of highest point. 1675 Comment
  UC337918  Calochortus plummerae unknown 1891-8-15 Orange Santa Ana Canyon Comment
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Feb 19 2014
  CAS-BOT-BC492707  Calochortus splendens A. M. White 1974-6-1 1429 Orange 20 Miles E of Santa Ana, N of Silverado Canyon 822 Comment
  JEPS61716  Calochortus splendens Alice King May 1908 Orange Santa Ana Mts. Comment
  RSA550601  Calochortus splendens Fred M. Roberts 1989-4-25 4312 Orange Santa Ana Mountains: East Rim of Blind Canyon 8.5 kilometers SW Sierra Peak, ca. 1.4 kilometer N Irvine Lake spilway. 366 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
  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
  RSA588976  Calochortus weedii var. intermedius D. E. Bramlet 1994-6-23 2392 Orange San Joaquin Hills. On ridgeline between Camarillo and Shady Canyons. The site is located 1.5 km west of Laguna Cyn. and 183 m SE of the Shady-Camarillo Cyn. Road Junction. 244 Comment
  RSA588989  Calochortus weedii var. intermedius D. E. Bramlet 1994-6-23 2389 Orange Upper portion of Little Sycamore Canyon, W of Laguna Canyon Road. 140 Comment
  RSA690972  Calochortus weedii var. intermedius Scott D. White, Michael Honer 2003-5-29 9425 Orange Santa Ana Mtn foothills: Rancho Mission Viejo. Hills above Canada Gobernadora, west side of canyon, ca. 1 air mile north of Ortega hwy. 91 Comment
  UC754056  Calochortus weedii var. intermedius H. F. Copeland 1938-6-29 1574 Orange back of Laguna Beach Comment
  UCR43238  Calochortus weedii var. intermedius Kathy Harper 1986-6-7 s.n. Orange Santa Ana Mtns., Modjeska Canyon Road just below Tucker Wildlife Sanctuary Comment
  RSA773548  Calochortus weedii var. weedii Fred M. Roberts, Robert Allen 2008-6-9 7036 Orange Santa Ana Mts.: Hot Spring Canyon, along road, 0.9 km N San Juan Fire Station 255 Comment
  RSA749642  Calycadenia tenella D. E. Bramlet 2008-4-15 4178 Orange Hicks Cyn., 301m E Haul Rd, & 1.4km N of the Bee Cyn Access Rd. 206 Comment
  UCR193067  Calycadenia tenella A. C. Sanders, T. B. Salvato 2008-5-13 35338 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Canyon at mouth of Hangman Tree Canyon and lower Hangman Tree Cyn, c. 1/2 mile below Modjeska Canyon confluence 366 Comment
  SD255709  Calystegia macrostegia D. E. Bramlet 2008-3-26 4121 Orange Santa Ana Mountains; Bee Canyon, Bowerman landfill site; 202 m south of the Bee Canyon access road and 151 m west of the active landfill entrance. 295 Comment
  UC1794974  Calystegia macrostegia subsp. arida R. K. Brummitt 1998-5-23 19994 Orange 17 km NE of San Juan Capistrano on Rte. 74 200 Comment
  UCR281536  Calystegia macrostegia subsp. cyclostegia Mitch Provance, Jeremiah George 2017-3-20 317- 124 Orange West Coyote Hills, Fullerton, vicinity of Utility Access Roads E of Gilbert Street and N of Castlewood Dr., on land previously occupied by oil fields. 137 Comment
  CAS-BOT-BC221305  Calystegia macrostegia subsp. intermedia C. B. Wolf 1932-3-6 1865 Orange 2 miles from Orange County Park on road to Anaheim 152 Comment
  JEPS31649  Calystegia macrostegia subsp. intermedia L. M. Booth 1932-5-19 Orange Newport Bay Comment
  RSA2064  Calystegia macrostegia subsp. intermedia C. B. Wolf 1931-3-6 1865 Orange 2 mi. from Orange Co. Park on the road to Anaheim. 152 Comment
  RSA683073  Calystegia macrostegia subsp. intermedia Fred M. Roberts 2003-3-13 5591 Orange Donna O'Neill Land Conservancy: Ridge west of Christianitos Canyon, 1,320m NW Sycamore Gate and 880m W Cristianitos Rd. 179 Comment
  RSA659546  Calystegia macrostegia subsp. macrostegia P. Shirokawa 1998-5-7 16 Orange Cleveland National Forest- Trabuco Ranger District, 0.3 miles from Ortega Highway (State Highway 74) on North Main Divide Road. 808 Comment
  RSA708723  Calystegia occidentalis subsp. fulcrata Fred M. Roberts, Robert L. Allen, Chris Barnhill, Nancy Hatfield 2005-5-30 6225 Orange west slope of Modjeska Peak, Harding Canyon watershed, Main Divide Road, 0.46km W summit. 1670 Comment
  RSA697154  Calystegia occidentalis subsp. occidentalis Minor Warne 1934-4-14 s.n. Orange Laguna Canyon. Comment
  SD181587  Calystegia soldanella Valerie Soza, K Clark, L Gross, W Miller, F Roberts, G Wallace 2001-4-4 1114 Orange Anaheim Bay, Seal Beach National Wildlife Refuge; Seal Beach quad. Coastal sand dunes. 3 Comment
  UCR241074  Calystegia soldanella Dick Newell 2013-4-18 326 Orange South Coast, Bolsa Chica State Beach in Huntington Beach, on beach near Pacific Coast Hwy, 0.15 mi. west of Sea Point St., along bike path 5 Comment
  HSC16412  Camissonia bistorta J. W. Johnson 1961-3-29 Orange Newport Beach, slope overlooking Upper Newport Bay. Comment
  POM201887  Camissonia bistorta L. M. Booth 1932-5-12 1034 Orange Newport Bay Comment
  RSA165280  Camissonia bistorta Mark Parratt 1962-4-11 138 Orange Corona del Mar beach head. 5 Comment
  RSA186655  Camissonia bistorta Peter H. Raven 1962-4-28 17491 Orange 6.5 miles east of San Juan Capistrano 91 Comment
  RSA29907  Camissonia bistorta Louis C. Wheeler 1932-6-25 857 Orange Newport Bay. 3 Comment
  UCR281498  Camissonia bistorta Mitch Provance, Jeremiah George 2017-3-20 317- 100 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
  RSA0073650  Camissonia cheiranthifolia subsp. suffruticosa Fred M. Roberts 2010-3-12 7181 Orange Southeast Coast: Dana Point Headlands: Harbor Point Park, South of Green Lantern and west of Dana Point Harbor, c.a. 150 meters SE Interpretive Center. 50 Comment
  RSA454022  Camissonia cheiranthifolia subsp. suffruticosa M. B. Dunkle 1933-4-9 3292 Orange Huntington Beach. Comment
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Jan 2 2015
  RSA698256  Camissonia cheiranthifolia subsp. suffruticosa R. H. McArthur 1934-4-7 s.n. Orange Near outlet of Santa Ana River Comment
  RSA72264  Camissonia cheiranthifolia subsp. suffruticosa F. W. Peirson 1921-1-9 2351 Orange At sea level, Balboa. 0 Comment
  RSA588658  Camissonia hirtella Fred M. Roberts, Carol A. Roberts 1990-5-23 4649 Orange Santa Ana Mtns.: West Fork, Upper Long Canyon, near Main Divide Truck Trail, 4.5 km SE Los Pinos Peak. 756 Comment
  RSA732072  Camissonia hirtella A. C. Sanders, Fred M. Roberts 2008-3-25 34558 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills. 259 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
  RSA733639  Camissonia micrantha R. H. McArthur 1934-5-19 s.n. Orange Trobuca Canyon. 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
  UCSB48095  Camissoniopsis bistorta Roberts, Fred 1982-4-18 Orange Santa Ana Mtns: Hot Springs Canyon, 1.8 km SW Falcon Group Camp; 1.9km S Los Pinos Peak 928 Comment
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Dec 2 2014
  SBBG40397  Camissoniopsis bistorta J. Ingram 1960-3-14 244 Orange La Palma Ave, ca. 2 blocks E of Knotts Berry Farm, Buena Park Comment
  CAS-BOT-BC160447  Camissoniopsis cheiranthifolia subsp. suffruticosa L. R. Abrams 1917-6-23 6576 Orange Balboa Comment
  CAS-BOT-BC160449  Camissoniopsis cheiranthifolia subsp. suffruticosa David D. Keck 1933-9-21 2523 Orange Sunset Beach Comment
  SBBG47450  Camissoniopsis cheiranthifolia subsp. suffruticosa N. C. Cooper 1944-6-3 1326 Orange Balboa Beach Comment
  CAS-BOT-BC37127  Capsella bursa-pastoris Ira L. Wiggins 1966-2-25 20476 Orange Firestone Boy Scout Reservation, east of Brea. Comment
  CAS-BOT-BC37128  Capsella bursa-pastoris Ira L. Wiggins 1966-3-5 20499 Orange Along Highway S-18, about 4.5 miles east of Laguna Beach. 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
  CAS-BOT-BC384760  Cardionema ramosissimum H. F. Copeland 1938-6-28 s.n. Orange Hills back of Laguna Beach Comment
  RSA747710  Cardionema ramosissimum Fred M. Roberts 2008-4-16 6913 Orange Dana Point: Dana Point Headlands, CNLM Preserve, 0.8 km W Marine Institute, Dana Point Harbor. 60 Comment
  UC671794  Cardionema ramosissimum H. F. Copeland 1938-6-28 Orange hills back of Laguna Beach Comment
  UCSB48057  Cardionema ramosissimum Fritzke, S.; Roberts, Fred 1982-4-3 Orange Dana Point Headlands: north of Dana Strand Road; 0.5 km. W Dana Point Harbor; 0.8 km. SSW Richard Henry Dana School 80 Comment
  UCR79247  Carduus pycnocephalus Steve Boyd, T. Ross 1992-5-19 7427 Orange Santa Ana Mtns., San Mateo Wilderness Area. Lucas Canyon Trail. 412 Comment
  SEINET11629784  Carex amplectens H. D. Geis 1902-1 502 Orange no further locality Comment
  RSA788972  Carex barbarae Robert F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49573 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74) Comment
  CAS-BOT-BC118498  Carex praegracilis Helen D. Geis 1902-1-1 505 Orange Near Santa Ana Comment
  CAS-BOT-BC118504  Carex praegracilis Helen D. Geis 1902-4-1 503 Orange Santa Ana Comment
  CAS-BOT-BC118494  Carex praegracilis Helen D. Geis 1902-4-1 s.n. Orange Santa Ana, Peat lands Comment
  RSA0026256  Carex spissa Fred M. Roberts 2013-6-12 7794 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
  UCR261689  Carex spissa Dick Newell, Judy Booth, Jutta Burger, Bob Huttar 2014-6-29 382 Orange Peninsular Range; Santa Ana Mtns., Silverado Canyon, along Silverado Creek, 0.15 mi. due north of Silverado Canyon Rd. and 0.75 mi. upstream from Blackstar Rd. 328 Comment
  RSA751160  Carex triquetra D. E. Bramlet 2008-5-15 4272 Orange Upper Borrego Cyn. 152m east of the access road & 1.7km west of Santiago Cyn Road 450 Comment
  SEINET7896473  Carpobrotus chilensis P. S. Rattle 1939-3 Orange Balboa Island Comment
  UCR196320  Carpobrotus chilensis Mark A. Elvin, Dean Kelch 2006-12-9 5292 Orange South Coast, Newport Backbay, Big Canyon, lower end 3 Comment
  RSA704426  Carpobrotus edulis Fred M. Roberts, David E. Bramlet 2004-7-30 6083 Orange Rancho Mission Viejo: Donna O Neill Land Conservancy, Cristianitos Cyn. along Cristianitos Ck., 1.1 km SSW Gato Gate and 0.32km W Cristianitos Road. 73 Comment
  RSA748267  Carpobrotus edulis A. C. Sanders, Fred M. Roberts 2008-6-17 35470 Orange Peninsular Range; Santa Ana Mtns: Lomas de Santiago, Augustine staging area near Limestone Canyon Rd. gate at Santiago Cyn Rd. 260 Comment
  UCR11220  Carthamus baeticus D. O. Clark 1969-7-14 s.n. Orange 2 mi NE of Brea Comment
  RSA1701  Castilleja affinis Carl B. Wolf 1931-3-6 1836 Orange Trabuco canyon, 1/2 mile above Trabuco Oaks, west slope of Santa Ana Mountains. 457 Comment
  RSA425876  Castilleja affinis Albert J. Perkins 1909-3-1 13722 Orange Orange Co Park. Comment
  RSA732124  Castilleja affinis A. C. Sanders, Fred M. Roberts 2008-4-8 34759 Orange Peninsular Range; Lomas de Santiago, Loma Ridge, SSE of Santiago Reservoir on Loma Ridge Spur Rd., above Dripping Springs Loop Rd. 457 Comment
  RSA734649  Castilleja affinis A. C. Sanders, Fred M. Roberts 2008-3-25 34572 Orange Peninsular Range; Santa Ana Mtns.: Saddle on ridge near head of Weir Canyon, 5.3 miles ENE of Villa Park, 3.1 mi. N of (Santiago Reservoir) Irvine Lake. 405 Comment
  UCR191447  Castilleja affinis A. C. Sanders, Fred M. Roberts 2008-4-8 34759 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
  RSA0010903  Castilleja affinis Shlomo Gat 1959-5-12 35 Orange Hills in Orange county. Comment
  RSA0010908  Castilleja affinis Keith E. Hoffmaster 1927-4-8 530 Orange Santa Ana Mountains. Comment
  UC1424837  Castilleja affinis subsp. affinis C. W. Tilforth and Dorothy Tilforth 1977-3-6 1259 Orange ca 10 mi w Corona (large wash w of Weir Canyon, s side of Santa Ana River) 152 Comment
  UCD170069  Castilleja affinis subsp. affinis R. F. Thorne; C. W. Tilforth, E. W. Lathrop 1977-4-27 49649 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. 227 Comment
  UCR209355  Castilleja exserta subsp. exserta Fred M. Roberts 2008-4-8 6848 Orange Lomas de Santiago, Loma Ridge, Upper Dripping Springs Cnyn, 1.0 km northeast of Bee Peak, Irvine Ranch Conservancy 458 Comment
  RSA400601  Castilleja foliolosa P. A. Munz, R. D. Harwood 1920-4-24 3745 Orange Sierra [Freemont] Canyon, Santa Ana Mts. 366 Comment
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Sep 25 2011
  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
  RSA588889  Castilleja minor subsp. spiralis Fred M. Roberts Jr. 1990-6-4 4665 Orange Hall Canyon, 1.8 km NNW Mustang Spring at east edge of Flying B Ranch 421 Comment
  RSA598022  Caulanthus heterophyllus D. Bramlet 1994-4-30 2376 Orange San Juaquin Hills, on ridgeline above Camarillo canyon, beside the Camarillo Spur (E side) road. The site if located 1.5km W of Laguna Canyon, 198m NE of the Shady Camarillo Canyon road jct. Comment
  RSA642524  Caulanthus heterophyllus D. E. Bramlet 1994-4-30 2376 Orange San Joaquin Hills. On ridgeline above Camarillo Canyon, beside the Camarillo Spur (E side) road. 1.5 km west of Laguna Cyn. and 198 m NE of the Shady-Camarillo Cyn. Road junction. 65 Comment
  RSA750700  Caulanthus heterophyllus D. E. Bramlet, Jim Harrison 2008-4-3 4153 Orange South Bee Canyon. Bowerman landfill site, 1.2 km S of the Bee Cyn access road, and 122 m W of the active landfill. Comment
  UCR222646  Caulanthus heterophyllus D. E. Bramlet 2008-4-1 4145 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, ridgeline in upper Hicks Canyon, 162 m south of the Haul Road 346 Comment
  CAS-BOT-BC48495  Ceanothus crassifolius Marcus E. Jones 1930-3-3 26514 Orange Santa Ana mountains Comment
  RSA304748  Ceanothus crassifolius James R. Shevock 1971-2-6 1178 Orange Mojeska Cyn 396 Comment
  RSA790452  Ceanothus crassifolius Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49698 Orange Northern Santa Ana Mountains: Sierra Peak Comment
  UCSB31585  Ceanothus crassifolius Proctor, Donald 1962-3-18 Orange Silverado Canyon, Santa Ana Mts, 914 Comment
  SD247715  Ceanothus crassifolius R. F. Thorne, C. W. Tilforth, E. W. Lathrop. 1977-4-27 49698 Orange Northern Santa Ana Mountains: Sierra Peak. Comment
  RSA703699  Ceanothus crassifolius var. crassifolius Fred M. Roberts, Arthur Davenport 2004-2-20 6026 Orange Santa Ana Mtns.: San Juan Canyon, SR 74, south side of road, 0.62 km SW San Lower San Juan Picnic Ground; 1.89 km WNW Sitton Peak. 390 Comment
  RSA399913  Ceanothus integerrimus Albert J. Perkins 1918-5-25 s.n. Orange Santiago Peak. Comment
  RSA16472  Ceanothus integerrimus var. californicus Percy C. Everett 1935-6-19 7236 Orange Trabuco Canyon, 1mile below W summit of truck trail. 1006 Comment
  POM2821  Ceanothus integerrimus var. puberulus L. R. Abrams 1901-06 1843 Orange Mt. Santiago. Comment
  RSA678517  Ceanothus integerrimus var. puberulus Fred M. Roberts, Kirsten Winter, Leanne Naue 1997-6-5 5040 Orange Santa Ana Mtns,: Santiago Peak, Main Divide Truck Trail at Orange-Riverside County line, 0.5km N summit. 1659 Comment
  SBBG4369  Ceanothus leucodermis M. Van Rensselaer 1941-5-30 1674 Orange summit of Ortega Hwy (St Hwy 74) 762 Comment
  LA93870  Ceanothus megacarpus D. S. Verity; Fred Lang 1974-2-20 sn Orange hills behind South Laguna Comment
  RSA12375  Ceanothus megacarpus Carl B. Wolf 1934-3-21 5577 Orange Santa Ana River, Santa Ana Canyon, 1/2 mi. S.W. of Mexican Houses, Rancho Santa Ana. 122 Comment
  SD236395  Ceanothus megacarpus A. C. Sanders, Fred M. Roberts, Amber ONeal, D. E. Bramlet 2008-5-9 35301 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, along old dirt road, c. 1.25 mi ESE of Walnut Cyn Reservoir. 340 Comment
  IRVC26730  Ceanothus megacarpus subsp. megacarpus Peter A. Bowler 2003-4-26 s.n. Orange UC San Joaquin Freshwater Marsh Reserve; bluffs along NW edge of marsh. Southern Coastal 9 Comment
  SBBG4382  Ceanothus megacarpus var. megacarpus M. Van Rensselaer 1941-12-7 1748 Orange facing the sea and overlooking S Laguna, ca. 3 mi S of Laguna Beach Comment
  RSA13146  Ceanothus oliganthus Percy C. Everett 1935-6-19 7234 Orange Main Divide Motorway, Bear Spring. 1220 Comment
  SBBG128668  Ceanothus oliganthus R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49699 Orange Sierra Peak; Santa Ana Mtns Comment
  SBBG52715  Ceanothus oliganthus var. orcuttii C. Davidson 1977-5-18 5599 Orange Pleasant Pk, (on county line) Comment
  SD42370  Ceanothus oliganthus var. orcuttii P. C. Everett 1935-6-19 7234 Orange Santa Ana Mts., Main divide motorway junction with Tabuco Canyon Truck trail. 1219 Comment
  RSA748166  Ceanothus oliganthus var. sorediatus K. M. Meyer, A. Townesmith, T. Scott 2007-3-10 7 Orange Cleveland National Forest, 2 mi. N of Main Divide Rd./NF3S04, off Hwy. 74. 957 Comment
  SEINET10852447  Ceanothus oliganthus var. sorediatus Karen M. Meyer, Andrew Townesmith; Tracy Scott 2007-3-10 Meyer 7 Orange Cleveland National Forest, 2 mi. N. Main Divide Rd./NF3S04, off Hwy. 74. 957 Comment
  CAS-BOT-BC51706  Ceanothus papillosus B. D. Stark 1933-1-5 10030 Orange 2 mi. So. of summit of Skyline Drive along road to Santiago Peak, Santa Ana Mts. 1219 Comment
  IRVC28204  Ceanothus papillosus subsp. roweanus A. C. Sanders, Mark A. Elvin 2005-9-2 31610 Orange Upper Holy Jim Canyon, a major tributary of Trabuco Cyn, along trail in the switchbacks. Santa Ana Mountains 970 Comment
  CAS-BOT-BC402196  Ceanothus papillosus var. roweanus R. F. Thorne; C. W. Tilforth; E. W. Lathrop 1977-4-27 49697 Orange Northern Santa Ana Mountains: Sierra Peak. Comment
  SD82797  Ceanothus papillosus var. roweanus F. W. Peirson 1923-5-6 3492 Orange Trail from Trabuco Canyon to Santiago Peak, Santa Ana Mountains (in Holy Jim Canyon) 990 Comment
  CAS-BOT-BC53005  Ceanothus spinosus P. C. Everett 1935-6-19 7241 Orange Santa Ana Mts., Trabuco Canyon, 1/8 mi. below (W.) Forest Service Patrol Station 487 Comment
  RSA25809  Ceanothus spinosus Carl B. Wolf 1941-8-15 11151 Orange W. slope Santiago Truck trail to Santiago Pk. 1.2 mi. above F.S. Gate. 610 Comment
  UCSB7051  Ceanothus tomentosus Lloyd, Robert 1959-4-17 Orange 10 miles south of West Corona on the Oak Flats Fire Road 792 Comment
  RSA731001  Cedrus deodara Fred M. Roberts, B. Allen, D. Olsen 2007-1-19 6504 Orange Beek s Place along Main Divide Rd., 4.1 km NW Pleasant Peak. 852 Comment
  RSA562805  Centaurea melitensis Steve Boyd, Timothy S. Ross 1992-5-20 7477 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
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Apr 29 2008
  SEINET3082600 Image available Centaurea melitensis R. P. Sunderman 1968-5-11 Orange W. of U. S. 101, immediately S. of Corona del Mar. Comment
  CLARK-A1528-916  Centaurea melitensis Patricia A. Andrews 1975-6-25 5927 Orange Capistrano Bay Beach 9 Comment
  RSA226629  Centaurea melitensis Christopher Davidson, Gerald L. Benny 1971-6-15 1549 Orange Brea Canyon, 0.5 mi. N of Central Ave, along Brea Cr, near bridge. Comment
  RSA5829  Centaurea melitensis C. B. Wolf 1932-6-28 3793 Orange Bryant Ranch, north boundary of field, N.E. corner of N-E 1/4 S.W. 1/4 sect 27 9 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
  UCR93176  Centaurea repens Jan West 1994-9-15 s.n. Orange Irvine, Jamboree Rd. 61 Comment
  IRVC19500  Centaurium venustum Gordon A. Marsh 1983-6-9 s.n. Orange Laguna Beach; intermediate ridge between Arch and Portafina canyons. Southern Coastal Comment
  RSA710405  Centaurium venustum Fred M. Roberts 2005-10-3 6293 Orange San Juan Capistrano: San Juan Creek wash, La Novia Road Bridge to 100m E of bridge, 1.4km E Mission San Juan Capistrano, 27 Comment
  UCR230837  Centaurium venustum Dick Newell, Judy Booth 2011-6-26 195 Orange Peninsular Range; Santa Ana Mtns., Long Canyon Rd., NW of Hwy 74, Cleveland National Forest 965 Comment
  RSA716092  Centromadia parryi Fred M. Roberts 2006-7-5 6349 Orange Bolsa Chica Ecological Preseve: Bolsa Chica Mesa, 0.8km SSW Chica Survey Marker and 1.4km SE jct. Pacific Coast Hwy. & Warner Ae. 7 Comment
  UC1424929  Centromadia parryi subsp. australis C. W. Tilforth 1975-9-6 1047 Orange ne shoreline Upper Bay; Newport Beach Comment
  UCR237987  Centromadia parryi subsp. australis D. E. Bramlet 2008-9-17 4306 Orange South Coastal Plain, Upper Newport Bay, West Mesa, 76 m east of Irvine Ave. & 305 m south of University Dr. 20 Comment
  UCR256520  Centromadia parryi subsp. australis R. E. Riefner Jr. 2014-8-28 14- 310 Orange South Coast, City of Costa Mesa, Talbert Regional Park, immediately west of Starfish Ct., east of the Santa Ana River 4 Comment
  UCR100180  Cercocarpus betuloides Scott D. White 1996-12-20 4637 Orange Santa Ana Mountains, above Modjeska Canyon; proposed water tank site 488 Comment
  UCSB34846  Cercocarpus traskiae Muller, Cornelius 1953-5-2 Orange Upper end of Swain Canyon, near ridge top, Santa Catalina Island Comment
  RSA16347  Chaenactis artemisiifolia Percy C. Everett 1935-6-18 7186 Orange Santa Ana Mts., Main Divide Motorway to Santiago Pk., 1 mi. from Ortega Highway. 732 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
  UCR16880  Chaenactis glabriuscula N. J. Moriarty 1973-5-27 730527 -4 Orange San Clemente State Beach, 0.5 mi south of Avenue Califia end Comment
  RSA695673  Chaenactis glabriuscula L. C. Hull 1934-4-29 s.n Orange Trabuco Canyon Comment
  CAS-BOT-BC283936  Chaenactis glabriuscula var. glabriuscula John Thomas Howell 1927-6-2 2411 Orange Southern Puente Hills in the Santa Ana Canon [Santa Ana Canyon] 152 Comment
  HSC5295  Chaenactis glabriuscula var. glabriuscula J. W. Johnson 1961-3-29 Orange Newport Beach 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
  RSA678495  Chaenactis glabriuscula var. glabriuscula Fred M. Roberts, Robert L. Allen, Carol Roberts 5847 Orange Dana Point Headlands: 0.8 km SSW Richard Henry Dana School north of Marguerita Drive 76 Comment
  CAS-BOT-BC284203  Chaenactis glabriuscula var. lanosa P. C. Everett 1935-5-17 6865 Orange 7/8 mi. E. of Atwood, S. side of Santa Fe railroad tracks 152 Comment
  POM6049  Chaenactis glabriuscula var. lanosa L. R. Abrams 1903-4-13 3254 Orange Buena Park Comment
  RSA13106  Chaenactis glabriuscula var. lanosa Percy C. Everett 1935-5-17 6865 Orange Atwood, 7/8 miles E. S side of Santa Fe R. R tracks 152 Comment
  RSA0008379  Chaenactis glabriuscula var. orcuttiana I. M. Johnston 1924-7-10 s.n. Orange 1/2 mile S mouth Aliso Canyon. Comment
  RSA0008381  Chaenactis glabriuscula var. orcuttiana F. W. Peirson 1924-5-31 4671 Orange 5 miles southeast of Laguna Beach. Comment
  RSA794564  Chamaecytisus prolifer Justin M. Wood 2010-3-31 1452 Orange Santa Ana Canyon: Chino Hills State Park property just west of Green River Golf Course on bluff south of the river. 131 Comment
  HSC7984  Chamaesyce albomarginata C. L. Hitchcock 1966-3-15 24140 Orange Stearns Lease, 1.5 mi. E of Brea. Comment
  CDA25868  Chamaesyce maculata Mark A. Elvin, B. S. Herhus 2006-11-4 5252 Orange Southern Coastal; Huntington Beach; 1.5 km southwest of Wintersburg, southwest of junction Slater and Goldenwest; Shipley Nature Center. Comment
  RSA265770  Chamaesyce maculata J. C. Roos 1937-5-21 2066 Orange Grounds of St. Joseph's Hospital, Orange. Comment
  IRVC19707  Cheilanthes newberryi Karlin G. Marsh 1983-7-14 Orange Laguna Canyon between Camarillo and Laural Canyons on Irvine Ranch; 3 small clusters on large outcrop beneath narrow ledge. San Joaquin Hills Comment
  RSA685773  Cheilanthes newberryi T. R. Pray 1964-1-1 2052 Orange San Juan Canyon, near first bridge past National Forest entrance Comment
  SD236265  Chenopodium album A. C. Sanders, Fred M. Roberts 2008-9-18 36065 Orange Peninsular Range; Santa Ana Mtns Foothills: Lomas de Santiago, Santiago Creek Canyon ca. 1 mile above the highway bridge (El Roro 7.5'Q) 320 Comment
  UC582777  Chenopodium album P. A. Munz 1936-6-30 14175 Orange 5 mi s Garden Grove Comment
  RSA184151  Chenopodium album I. L. Wiggins 1965-10-25 20300 Orange Curbway on Dorothy Lane near intersection with Lincoln Avenue, Fullerton. Comment
  RSA5506  Chenopodium album C. B. Wolf 1932-6-28 3760 Orange Bryant Ranch: along western half of north boundary of 40 acre Valencia orange grove at Bryant Ave. and Hansen Road. 9 Comment
  RSA5936  Chenopodium album C. B. Wolf 1932-7-7 3838 Orange Bryant Ranch, along drainage ditch on Bixby Ave.; 100 ft. W. of Hansen Rd.; 100 ft W of corner of NE 1/4 9 Comment
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Apr 9 2014
  RSA750005  Chenopodium ambrosioides A. C. Sanders, Fred M. Roberts 2008-9-18 36062 Orange Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge 320 Comment
  POM122883  Chenopodium ambrosioides Marcus E. Jones 1924-8-26 s.n. Orange Newport. Comment
  POM201674  Chenopodium ambrosioides L. M. Booth 830 Orange Santa Ana Canyon. Comment
  RSA423413  Chenopodium ambrosioides L. M. Booth 1932-7-25 1312 Orange Santa Ana River, 1 1/2 miles from ocean. Comment
  RSA788909  Chenopodium berlandieri Fred M. Roberts 2008-6-26 7061 Orange Lomas de Santiago: Loma Ridge along West Loma Ridge Road, c.a. 1 km N Haul Rd., 2.5 km NNW Bee Peak, Irvine Ranch Land Conservancy. 382 Comment
  POM201802  Chenopodium berlandieri var. sinuatum L. M. Booth 1933-9-2 1389 Orange Santa Ana River; flood bed near coast of Orange. Comment
  IRVC25457  Chenopodium californicum Fred M. Roberts 1987-4-21 3390 Orange Aliso Creek, Aliso Creek Bike Trail, 3.0km ENE Moulton Peak, Aliso Viejo 73 Comment
  RSA731982  Chenopodium californicum A. C. Sanders, Fred M. Roberts 2008-4-8 34774 Orange Peninsular Range: Lomas de Santiago, SSE os f Santiago Reservoir on Harding Truck Trail at Dripping Springs Loop, above Limestone Canyon. 475 Comment
  UC494725  Chenopodium californicum Philip A. Munz 1932-3-29 12186 Orange along sea-bluffs Costa Mesa Comment
  RSA793261  Chenopodium macrospermum R. F. Thorne 1984-1 s.n. Orange Newport Back Bay Comment
  UCR112949  Chenopodium macrospermum B. G. Pitzer 1996-4-30 2785 Orange South Coast, Upper Newport Bay, Calif. Dept. Fish & Game Ecological Reserve, off (W of) Jamboree Road 6 Comment
  IRVC27496  Chenopodium murale Mark A. Elvin 2004-5-2 3403 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7km (air) NNW UC Irvine campus center. Southern Coastal 3 Comment
  IRVC385  Chenopodium murale McGuire 1965-4-17 Orange Corona del Mar. Newport Beach Comment
  IRVC398  Chenopodium murale J. Morgan 1965-2-5 Orange Corona del Mar High School. Newport Beach Comment
  IRVC399  Chenopodium murale L. Lewton 1965-4-19 Orange Corona del Mar High School. Newport Beach Comment
  UCR154290  Chenopodium murale Mark A. Elvin 2004-5-2 3403 Orange Southern Coastal, Irvine: San Joaquin Freshwater Marsh, near Campus and University Drives; 1.7 km (air) NNW UC Irvine campus center 3 Comment
  UCSB48085  Chenopodium murale Roberts, Jr., Fred 1981-5-2 Orange Mission Viejo; Camino Capistrano, 1.7 km. N Crown Valley Parkway 49 Comment
  RSA478560  Chenopodium rubrum L. M. Booth 1933-9-8 1390 Orange Anaheim Marsh. Comment
  UCR61247  Chlorogalum parviflorum Jeri Hirshberg 1988-7-7 s.n. Orange Santa Ana Mountains, Upper Blind Canyon, W-facing slopes below the transmission tower. Comment
  UC1608267  Chorizanthe fimbriata var. fimbriata Steve Boyd, Tim Ross 1992-5-20 7474 Orange western edge of San Mateo Canyon Wilderness Area in Lucas Canyon (along foot trail upstream from end of old roadgrade to upper homestead (corrugated steel building)); Southern Santa Ana Mountains, San Mateo Canyon Wilderness Ar 350 Comment
  UCSB50631  Chorizanthe fimbriata var. fimbriata Roberts, Fred 1982-7-20 Orange Santa Ana Mountains, Main Divide Extension, 2.0km N jct. 74; 1.1km NNW El Cariso Campground 928 Comment
  RSA749845  Chorizanthe procumbens D. Bramlet, Jim Harrison 2008-3-28 4132 Orange Bee Canyon. Bowerman landfill site.925 m S of the Bee Cyn. access road, 352 m W of the landfill entrance. Comment
  SD134406  Chorizanthe procumbens Craig Reiser 1991-4-18 Orange Dana Point Headlands Comment
  CAS-BOT-BC255247  Chorizanthe staticoides Frank W. Peirson 1924-5-31 4644 Orange Laguna, near sea level Comment
  CAS-BOT-BC255249  Chorizanthe staticoides Helen D. Geis 1902-1-1 542 Orange Hills near Santa Ana Comment
  RSA587873  Chorizanthe staticoides Fred M. Roberts, Carol A. Roberts 1990-5-16 4627 Orange Santa Ana Mtns: Small canyon along SE side of Irvine Mesa, 3.5 km N Bolero Lookout 396 Comment
  RSA588851  Chorizanthe staticoides Fred M. Roberts, Kathy Keane 1989-6-28 4392 Orange Laguna Niguel: Just beyond end of Le Conte Rd along ridge, 0.6 km SW summit of Niguel Hill. 195 Comment
  RSA751164  Chorizanthe staticoides D. E. Bramlet 2008-5-9 4265 Orange Ridgeline between the upper two tributaries of Wier Cyn. 1.2km east of S. Serrano Ave and 1.3km west of Gypsum Cyn. 330 Comment
  UC1175013  Chorizanthe staticoides E. K. Balls 1958-6-26 23814 Orange Comment
  RSA0051264  Chorizanthe staticoides Keith E. Hoffmaster 1935-3-17 550 Orange Near El Toro (Trabuco rd). Comment
  UCR241918  Chorizanthe staticoides subsp. chrysacantha Fred M. Roberts 2012-5-10 7566 Orange Peninsular Ranges; Coastal Foothills, San Joaquin Hills, Buck Gully, south tributary, north slope Pelican Hill, just north of Pelican Hills Drive, 0.7 km north of Pelican Hill summit 154 Comment
  CAS-BOT-BC502066  Chrysanthemoides monilifera R. E. Riefner, Jr. 2011-11-26 11 -159 Orange City of Laguna Beach, E side of Paific Coast Hwy, S of Aliso Circle, N of Alisa Creek 12 Comment
  IRVC17045  Chrysanthemum coronarium J. Schram 1965-4-14 Orange Calif. 1. Laguna Beach Comment
  UCR217464  Chrysanthemum coronarium Mark A. Elvin 2003-2-23 2311 Orange South Coast, Irvine, San Joaquin Marsh along the berm of San Diego Creek 3 Comment
  POM202172  Cirsium brevistylum L. M. Booth 1932-5-15 1199 Orange Santa Ana River, 1/2 miles from ocean Comment
  RSA721124  Cirsium californicum Minor Warne 1934-5-19 s.n. Orange Trabuco. Comment
  CAS-BOT-BC280090  Cirsium occidentale var. californicum A. M. White 1974-6-1 1412 Orange About 20 mi. E. of Santa Ana, N of Silverado Canyon Comment
  IRVC14808  Cirsium occidentale var. californicum E. P. Cowper 1965-4-10 Orange Trabuco Canyon, passed Guard Station. Santa Ana Mountains Comment
  SD143571  Cirsium occidentale var. californicum R. D. Goeden, D. W. Ricker 1965-6-21 Orange Dana Point 75 Comment
  UCR194997  Cirsium vulgare A. C. Sanders, Fred M. Roberts 2008-8-7 36000 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon at powerline crossing, 1.0 mi. (air) SSE of Walnut Canyon Reservoir 226 Comment
  RSA769611  Clarkia E. W. Lathrop 1974-6-27 7408 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  CAS-BOT-BC172422  Clarkia bottae Carl B. Wolf 1932-7-2 3825 Orange Carbon Canyuon, 1/8 mi. below La Vida Springs 213 Comment
  UCR261719  Clarkia bottae Dick Newell, Judy Booth 2014-5-25 373 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, Maple Springs Rd./Silverado Canyon Rd., 1.52 miles ENE of the lower Maple Springs gate 695 Comment
  POM3064  Clarkia epilobioides Daniel J. Crawford 1916-07 s.n. Orange Near Laguna. Comment
  RSA511063  Clarkia purpurea subsp. purpurea S. J. Myers 1989-5-4 s.n. Orange Near Horsetrough Spring at the head of Black Star Canyon, Santa Ana Mountains. 640 Comment
  RSA448293  Clarkia purpurea subsp. quadrivulnera N. C. Cooper 1945-6-4 1333 Orange San Juan Canyon 762 Comment
  RSA652344  Clarkia purpurea subsp. quadrivulnera T. Sargent 1959-5-17 s.n. Orange Car. [Carbon] Canyon above La Vida Springs. Comment
  UCR139447  Clarkia purpurea subsp. quadrivulnera E. R. Johnson 1933-6-1 4996 Orange Santa Ana River Canyon, Rancho Santa Ana Botanic Garden, 0.25 mi. SW of Muddy Springs near Roundtop Peak 427 Comment
  RSA708234  Clarkia rhomboidea Fred M. Roberts, Robert L. Allen, Chris Barnhill, Nancy Hatfield 2005-5-30 6236 Orange Modjeska Peak, west slope along summit road, 0.15km by air W summit. 1613 Comment
  RSA2076  Claytonia perfoliata subsp. mexicana C. B. Wolf 1931-3-6 1853 Orange Trabuco Canyon at Trabuco Camp Grounds, west slope of Santa Ana Mountains. 610 Comment
  POM305798  Clematis lasiantha Henry J. Ramsey, Henry J. Ramsey 1937-4-2 1061 Orange Capistrano Canyon. Comment
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Dec 17 2011
  UC1178495  Clematis lasiantha Peter Kamb 1948-6-19 1106 a Orange Santa Ana Mts., Holy Jim Canyon 609 Comment
  UCSB48127  Clematis lasiantha Roberts, Fred 1981-4-11 Orange Santa Ana Mtns; San Juan Canyon; Hwy 74; 2.7km ENE San Juan Guard Station 325 Comment
  RSA607432  Cleome isomeris L. C. Wheeler 1932-6-25 868 Orange Newport Bay. 3 Comment
  POM177568  Cnicus benedictus A. Gilman 1931-5-25 s.n. Orange Field Banning Comment
  UCR256916  Collinsia concolor Naomi Fraga 2009-5-11 2713 Orange Santa Ana Mountains, Cleveland National Forest, San Juan Loop Trail just west of Sugarloaf Spur Trail 912 Comment
  RSA0117316  Collinsia parviflora Robert Allen, Fred M. Roberts, Chris M. Barnhill 2003-4-26 12364 Orange Santa Ana Mountains, San Juan Canyon, San Juan Loop Trail near Upper San Juan Campground. 523 Comment
  POM15031  Comarostaphylis diversifolia subsp. diversifolia Mary F. Spencer 1932-05 1971 Orange Canyon Prope. 61 Comment
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Nov 19 2013
  CDA5373  Conium maculatum D. McDonald 1957-7-1 Orange Yorba Linda. 0 Comment
  UCR138406  Conium maculatum Scott D. White, Brian Leatherman 1997-6-12 5310 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
  RSA226637  Conium maculatum Christopher Davidson, G. Benny 1971-6-15 1544 Orange Brea Canyon, 0.5 mile N of Central Avenue, along Brea Creek, near Brea Oil Co. wells. Comment
  IRVC966  Convolvulus arvensis L. McCabe 1965-4-13 Orange Corona del Mar. Newport Beach Comment
  IRVC970  Convolvulus arvensis R. Hobson 1965-4-10 Orange Santa Ana Heights, 2431 Mesa Dr. Southern Coastal Comment
  UCR107845  Convolvulus arvensis Scott D. White 1998-3-24 6235 Orange Irvine. Univ. of Calif. Irvine Campus: Site of proposed Research Park. SW of main campus circle, c. halfway between Berkeley Av. and new freeway (Bonita Cyn) 37 Comment
  RSA730987  Conyza bonariensis Fred M. Roberts 2006-11-15 6461 Orange Santa Ana Cyn., 1.0 km ENE Imperial Hwy bridge, between La Palma Ave. and Santa Ana River near Big Springs St. 89 Comment
  IRVC25164  Conyza canadensis Fred M. Roberts 1986-9-3 3141 Orange adjacent to Anaheim, between Yorba Linda Regional Park and Imperial Hwy, Santa Ana River 88 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
  IRVC24224  Conyza coulteri Fred M. Roberts 1985-10-1 2292 Orange Silverado Canyon, Silverado Canyon Road, 1.0km by road E junction Santiago Canyon Road. Santa Ana Mountains 320 Comment
  RSA488131  Conyza coulteri Fred M. Roberts 1985-8-19 2127 Orange Crystal Cove State Park: Pelican Point, border of old Stable site, 0.1km from ocean 20 Comment
  SEINET12320812  Cordylanthus maritimus R. A. Schlising 1972-1 Orange Comment
  SEINET4676165  Cordylanthus rigidus A. C. Sanders, Fred M. Roberts 2008-7-16 35826 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago, along road in lower Limestone Canyon, near junction with Harding Truck Trail.; 0 290 Comment
  RSA7460  Cordylanthus rigidus subsp. setiger Carl B. Wolf 1933-8-24 5378 Orange 1/2 mile below summit of Bedford Motorway, east slope of Santa Ana Mountains. 976 Comment
  UCSB48241  Cordylanthus rigidus subsp. setiger Roberts, Fred 1981-7-21 Orange Santa Ana Mts.: 0.8km SE Blue Jay Camp Ground 934 Comment
  CAS-BOT-BC287840  Coreopsis californica Agnes M. Bowman 1899-5-1 s.n. Orange Unspecified Comment
  CAS-BOT-BC101295  Corethrogyne filaginifolia David D. Keck 1932-9-30 1908 Orange Dana Point, near San Juan Capistrano Comment
  HSC5418  Corethrogyne filaginifolia J. W. Johnson 1961-2-19 Orange Newport Beach, marine terrace above upper Newport Bay. Comment
  RSA699554  Corethrogyne filaginifolia L. C. Hull 1934-4-15 s.n. Orange Laguna Hills Comment
  UCSB52401  Corethrogyne filaginifolia Roberts, Fred 1982-9-15 Orange Rancho Mission Viejo; Rte. 74, 6.6 km. by road ENE San Juan Capistrano; 0.9 km. Viejo Peak 93 Comment
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Jan 25 2020
  RSA397461  Cornus nuttallii T. W. Minthorn 1926-5-10 s.n. Orange Orange Co. Comment
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Mar 6 2019
  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
  UC1719426  Coronopus didymus D. Atwood 1993-3-26 17688 Orange Corona Del Mar State Park along Newport Coast Drive 0 Comment
  UCR217460  Coronopus didymus Mark A. Elvin 2003-2-23 2307 Orange South Coast, Irvine, San Joaquin Marsh along the berm of San Diego Creek 3 Comment
  RSA735026  Cotula australis Scott D. White, Justin M. Wood 2008-4-10 11846 Orange Chino Hills: Powerline access road just N of CHSP boundary and just W of Orange/SB co. line. Approx. 1 mi. NW of Gilman Peak. 366 Comment
  UC1543192  Cotula coronopifolia Donald G. Nelson 1935-3-30 197 Orange near mouth Brea Canyon (n of Brea, near Portolas Camp) Comment
  RSA696049  Cotula coronopifolia Stephen Bruff s.n. Orange Lemon Heights Comment
  UC1930991  Cotyledon orbiculata R. E. Riefner Jr. 2006-8-25 06 -407 Orange South Coast: Dana Point Harbor, Dana Point Harbor Dr. at Ensenada Pl. Comment
  HSC6500  Crassula connata J. W. Johnson 1961-2-19 Orange Newport Beach, above upper Newport Bay Comment
  RSA678516  Crassula connata Valerie L. Soza, Kevin B. Clark, LeRoy Gross, Will Miller, Fred Roberts, Gary D. Wallace 2001-4-4 1124 Orange Seal Beach U. S. Naval Weapons Station, southwestern edge of Seal Beach National Wildlife Refuge. 3 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
  RSA348  Crassula connata var. erectoides J. T. Howell 1928-2-7 s.n. Orange Santa Ana River bottom, Rancho Santa Ana 152 Comment
  RSA542643  Crassula connata var. erectoides Fred M. Roberts, Dar A. Roberts 1989-3-22 4219 Orange Aliso-Wood Canyons Regional Park: Wood Canyon, 3.6 km S Moulton Peak. 43 Comment
  IRVC25205  Cressa truxillensis Fred M. Roberts 1986-11-4 3198 Orange Anaheim Bay, north of Hog Island, Seal Beach Naval Weapons Station 0 Comment
  JEPS43028  Cressa truxillensis L. M. Booth 1932-5-18 1052 Orange Newport Bay Comment
  POM3584  Cressa truxillensis D. L. Crawford s.n. Orange Laguna Beach Comment
  POM3812  Cressa truxillensis P. A. Munz 1918-5-4 2168 Orange Laguna Comment
  POM6361  Cressa truxillensis P. A. Munz 1919-5-4 2687 Orange Laguna Comment
  RSA593876  Cressa truxillensis R. E. Riefner 1995-4-28 95 -115 Orange San Clemente State Beach. Comment
  IRVC22971  Cressa truxillensis Karlin G. Marsh 1986-8-26 Orange Flood Control Channel F-10 east of Redhill Ave.; dry banks of flood control channel. Tustin Comment
  RSA394757  Cressa truxillensis Albert J. Perkins 1917-11-3 s.n. Orange Santa Ana. Comment
  RSA5240  Cressa truxillensis C. B. Wolf 1932-9-13 4028 Orange Edge of field So. of Bryant Ave., 1/2 mi. W of Los Alamitos Blvd. 8 Comment
  HSC7965  Croton californicus J. W. Johnson 1961-3-29 Orange Newport Beach, slope overlooking Upper Newport Bay. Comment
  UCSB47973  Croton californicus Roberts, Jr., Fred 1980-2-17 Orange Along north side of Dana Strand Road, on the bluffs west of Dana Mrina, Dana Point 56 Comment
  RSA5806  Croton californicus var. tenuis C. B. Wolf 1932-6-28 3776 Orange Bryant Ranch: along western half of north boundary of 40 acre Valencia orange grove at Bryant Ave. and Hansen Road. 9 Comment
  UCR209386  Cryptantha clevelandii Fred M. Roberts 2008-3-19 6782 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
  UCR263635  Cryptantha clevelandii var. clevelandii Ed Kentner 2012-4-24 130 Orange Peninsular Range: Santa Ana Mountains, Lomas De Santiago, El Toro property 200 Comment
  IRVC256  Cryptantha intermedia S. Gilbert 1965-4-8 Orange Trabuco Canyon. Santa Ana Mountains Comment
  RSA542657  Cryptantha intermedia Fred M. Roberts 1988-4-10 3902 Orange Lomas De Santiago: Loma Ridge, Upper Limestone Canyon, c.a. 3.2 kilometer NNW Bolero Lookout. 347 Comment
  RSA732088  Cryptantha intermedia A. C. Sanders, Fred M. Roberts 2008-3-25 34546 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  UC971737  Cryptantha intermedia L. M. Booth 1932-5-12 1028 Orange Newport Bay Comment
  UCR119033  Cryptantha intermedia Beecher Crampton 1967-5-23 7957 Orange South Coast, 4 miles east of Irvine. UC South Coast Field Station 320 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
  UCR263772  Cryptantha intermedia Ed Kentner 2012-4-24 129 Orange Peninsular Range: Santa Ana Mountains, Lomas De Santiago, El Toro property 200 Comment
  RSA0127341  Cryptantha intermedia var. intermedia Fred M. Roberts 2016-3-17 8023 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
  RSA0013970  Cryptantha microstachys Fred M. Roberts 2008-4-8 7169 Orange Lomas de Santiago; Loma Ridge, Upper Dripping Springs Cyn,. 1.0km NE Bee Peak, Irvine Ranch Conservancy. 458 Comment
  RSA681022  Cryptantha microstachys Fred M. Roberts, D. E. Bramlet 2003-3-13 5584 Orange Donna O Neill Land Conservancy: Ridge west of Christianitos Canyon, 1.6 km NW Sycamore Gate. 207 Comment
  UCR191223  Cryptantha microstachys A. C. Sanders 2008-4-29 35127 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
  UCR191336  Cryptantha microstachys A. C. Sanders, Fred M. Roberts 2008-4-8 34782 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
  UCR47758  Cryptantha microstachys F. R. Fosberg 1930-6-15 S- 2883 Orange Santa Ana Mtns, Santiago Canyon, above Modjeska's home. Comment
  UCR77711  Cryptantha microstachys Steve Boyd, Orlando Mistretta 1991-5-9 6191 Orange Santa Ana Mtns, Crest of range at Oak Flat, SE of Sierra Peak, just west of Riverside County line. 854 Comment
  UCSB52878  Cryptantha microstachys Roberts, Fred; Marsh, G. 1983-3-30 Orange UC Irvine Ecological Preserve, 0.6 km. SW UCI campus center 43 Comment
  IRVC19956  Cryptantha microstachys Gordon A. Marsh 1983-4-16 Orange Sycamore Hills, central sector, lower margin, Laguna Beach Comment
  CDA42236  Cucurbita digitata Bellue - Paddock Oct 1944 Orange Near Ry. [Railway?] 0 Comment
  UCR191219  Cucurbita foetidissima A. C. Sanders 2008-4-29 35141 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, western end of Loma Ridge on road to sheriff's training facility, c. 1.5 mi. SW of Santiago Reservoir 335 Comment
  CAS-BOT-BC80568  Cupressus forbesii P. A. Munz; I. M. Johnston 1922-5-18 5566 Orange Santa Ana Mts. 457 Comment
  POM12369  Cupressus forbesii Wm M. Pierce 1922-3-10 s.n. Orange Santa Ana Mountains. South of Santa Ana River. side of small canyon Comment
  UC1061653  Cupressus forbesii Howell Orange Santa Anna Mountains Comment
  UCR37801  Cupressus forbesii Steve Boyd, L. F. LaPre 1981-5-27 s.n. Orange Santa Ana Mtns., Northern end of the Santa Ana Mtns., along powerline road on ridges east of Weir Canyon & at the head of Gypsum Canyon. Comment
  NY16665  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
  RSA409705  Cuscuta californica F. R. Fosberg 1931-6-21 5143 Orange Silverado Canyon. Santa Anita Mts. Comment
  RSA570  Cuscuta californica J. T. Howell 1927-6-3 24 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA788244  Cuscuta californica R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49628 Orange Santa Ana Mountains: San Juan Canyon, along Ortega Highway (74) across from San Juan Fire Station Comment
  RSA797668  Cuscuta californica R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49772 Orange Santa Ana Mountains: Trabuco Canyon. Comment
  UCR16113  Cuscuta californica Dave Cerf 1971-4-17 s.n. Orange Orange Park Acres, 0.25 mi. north of Twin Lakes 396 Comment
  RSA797476  Cuscuta ceanothi R. F. Thorne 1977-11-21 49989 Orange Santa Ana Mountains: San Juan Canyon about 2 miles above San Juan Fire Station Comment
  UCR170447  Cuscuta ceanothi Jeffrey Ross, R. Zaka, P. Ross 1998-5-2 34 Orange Irvine, San Joaquin Wildlife Reserve, San Diego Creek; highly disturbed wash, sandy with high seasonal variation in water level, c. 5 mi from Pacific Ocean 6 Comment
  RSA5950  Cuscuta salina C. B. Wolf 1932-7-7 3844 Orange Bixby Ave., 0.6 mile W of Hansen road. 8 Comment
  RSA610222  Cuscuta salina Fred M. Roberts, Julie Vanderwier 1997-4-29 5020 Orange Bolsa Chica Salt Marsh (US Fish & Wildlife Service cell 17); west of old oil field, 1.17 km. SSE Chica Survey Mark. 0 Comment
  CDA23140  Cuscuta subinclusa Mark A. Elvin, D. G. Kelch 2006-12-9 5312 Orange Southern Coastal; Irvine; San Diego Creek, edge of San Joaquin Marsh, beside University Drive, between Campus Drive and Highway 73. Comment
  RSA725468  Cuscuta subinclusa Fred M. Roberts, Megan Lulow 2007-7-30 6550 Orange Fremont Canyon, 1.3 km NE Irvine Lake spillway, North Irvine Ranch Policy Area. 253 Comment
  RSA751790  Cuscuta subinclusa A. C. Sanders, Fred M. Roberts 2008-7-3 35688 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
  UC536956  Cuscuta subinclusa Lawrence M. Booth 1932-7-25 1316 Orange Santa Ana River Comment
  UCR194551  Cuscuta subinclusa A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35320 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along fire line/bulldozer cut, c. 1.5 mi. east of Walnut Cyn Reservoir 346 Comment
  UCR215287  Cuscuta subinclusa Fred M. Roberts, D. E. Bramlet 2008-5-13 6958 Orange Lomas de Santiago, Loma Ridge, north end, west of Sheriff Rd., 1.4 km SE of Peters Canyon Reservoir dam. Irvine Ranch Conservancy 263 Comment
  CAS-BOT-BC299753  Cynara cardunculus Carl B. Wolf 1936-7-8 8100 Orange Western end of Newport Bay, Coast Highway 9 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
  RSA232217  Cynodon dactylon James Henrickson 1970-7-24 4992 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
  UCR157711  Cyperus Adrian Wolf 1998-5-15 270 Orange South Coast, Lambert Reservoir, north of El Toro Marine Corps Air Station 134 Comment
  RSA0089485  Cyperus difformis D. E. Bramlet 2009-11-20 4422 Orange South Coast: San Diego Creek between Irvine and Newport Back Bay. 4 Comment
  POM1353  Cyperus erythrorhizos D. L. Crawford 1916-7-26 s.n. Orange Laguna Canyon. Comment
  RSA599641  Cyperus esculentus Fred M. Roberts, P. Barrett, G. Bastillos 1995-7-25 4970 -B Orange Santa Ana Mountains: San Juan Canyon along San Juan Creek, San Juan Hot Springs, 0.8 kilometer SSW Juan Rancho Survey Mark. 214 Comment
  RSA542518  Cyperus involucratus Fred M. Roberts, W. R. Ferren 1987-4-8 3363 Orange Upper Newport Beach Back Bay, west side, North Star Beach, 0.8 km N Coney Island. 0 Comment
  RSA599639  Cyperus involucratus Fred M. Roberts, P. Barrett, G. Bastillos 1995-7-25 4968 Orange Santa Ana Mountains: San Juan Canyon along San Juan Creek, San Juan Hot Springs, 0.8 kilometer SSW Juan Rancho Survey Mark. 214 Comment
  SD227676  Cyperus niger ScottD. White, Brian Leatherman 1997-6-12 5320 Orange East of San Juan Capistrano: San Juan Creek between Hwy 74 bridge and Mission Vieja site. i.e., ca. 2 to 4 mi E of I-15/ Hwy 74 jtn. 46 Comment
  RSA77  Cyperus niger var. capitatus J. T. Howell 1927-7-19 439 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  RSA450865  Cyperus odoratus Gordon Marsh, Karlin G. Marsh 1977-11-21 s.n. Orange Santa Ana Mountains: San Juan Hot Springs. 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
  SD248281  Cyrtomium falcatum R. E. Riefner 2011-7-7 11 87 Orange City of Dana Point, S of Mussel Cove, N of Salt Creek Beach Park. 4 Comment
  UCR241041  Cyrtomium falcatum Robert DeRuff 2010-1 487 Orange South Coast, Upper Newport Bay, near Back Bay Dr., below Eastbluff North 5 Comment
  RSA539378  Dactylis glomerata Fred M. Roberts 1988-6-9 4080 Orange Santa Ana Mountains: Modjeska Peak, 0.9km SW summit., 3730500mN, 449000mE 1542 Comment
  RSA359608  Datisca glomerata W. Wisura, L. Aberbom 1986-9-9 4138 Orange Lower San Juan Picnic area, Ortega Hwy. Comment
  SBBG128673  Datisca glomerata R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49563 Orange San Juan Cyn at lower Picnic Camp, just below Ortega Hwy (74); Santa Ana Mtns Comment
  RSA702205  Datura wrightii Fred M. Roberts, David E. Bramlet 2003-6-20 5920 Orange Rancho Mission Viejo; Donna O'Neil Land Conservancy tributary to Cristianitos Cyn, along Back Road, 1.4 km WNW Sycamore Gate. 189 Comment
  RSA699550  Daucus pusillus J. Vlahos 1934-04 s.n. Orange Lemon Heights Comment
  CAS-BOT-BC299332  Deinandra fasciculata L. R. Abrams 1917-6-23 6568 Orange Balboa Comment
  HSC24363  Deinandra fasciculata Michael Ward 1970-8-22 5 Orange Ca. 4 mi. NE of Huntington Beach at Bolsa Chica Salt Marsh adjacent to to Bolsa Bay 0 Comment
  RSA94100  Deinandra fasciculata F. W. Peirson 1924-8-29 5064 Orange Santa Ana Comment
  UCR146881  Deinandra paniculata Kathleen Stockwell 1999-5-30 s.n. Orange South Coast, north of Cristianitos Road, San Clemente 61 Comment
Read comments
Jan 8 2013
  CAS-BOT-BC9095  Delphinium cardinale John Thomas Howell 1927-7-26 2837 Orange SE fork of Claymine Canyon, northern Santa Ana Mtns. 304 Comment
  UC729868  Delphinium cardinale Carl B. Wolf 1932-7-2 3821 Orange 1/8 mi below La Vida Springs; Carbon Canyon 213 Comment
  RSA539368  Delphinium parryi Fred M. Roberts, Carol A. Roberts 1988-6-2 4030 Orange Santa Ana Mtns: Silverado Canyon, Maple Springs Truck Trail, 4.3km above gate. 1.0 km WSW Bald Peak. 817 Comment
  RSA788921  Delphinium parryi subsp. parryi Fred M. Roberts 1999-6-10 5243 Orange Lomas de Santiago: Loma Ridge, Central Limestone Cyn., 4.5 km W Silverado School and 4.5 km NW Bolero Lookout. 306 Comment
  CAS-BOT-BC82948  Dendromecon rigida P. C. Everett 1935-6-19 7233 Orange Santa Ana Mountains, Main Divide Motorway 7 miles from summit Santiago Peak (Southeast). 1280 Comment
  RSA5311  Dendromecon rigida subsp. rigida B. D. Stark 1933-1-5 4506 Orange 2 mi. so. of summit of skyline Drive on road along ridge to Santiago Peak. Santa Ana Mts. 1067 Comment
  RSA794327  Dicentra ochroleuca Justin M. Wood 2010-3-31 1444 Orange [Santa Ana Canyon:] Santa Ana River floodplain, 0.25 miles north of Coal Canyon wildlife corrridor, west of Green River Golf Course on bluff south of the river. 122 Comment
  UCR191358  Dichelostemma capitatum A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34644 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
  RSA590942  Dichelostemma capitatum subsp. capitatum Fred M. Roberts Jr. 1991-5-2 4782 Orange San Joaquin Hills: Laguna Canyon, Laguna Laurel, just W of Laguna Canyon Road, ca 2 km N jct El Toro Road, 4.5 km E Signal Peak. 110 Comment
  UCR188938  Dichondra micrantha Robert DeRuff 2006-6-1 313 Orange Newport Beach, Upper Newport Bay, 23rd Street on west side of the Bay 11 Comment
  CAS-BOT-BC224617  Dichondra occidentalis Bradshaw 1893-6-1 s.n. Orange Arch Beach Comment
  RSA528053  Digitaria ciliaris A. C. Sanders 1990-10-6 10181 Orange Newport Bay, North Star County Beach area on the SW end of the bay, ca. 2 km inland of Highway 1. 1 Comment
  UCR188995  Digitaria sanguinalis Fred M. Roberts 2007-10-29 6624 Orange South Coast, Laguna Beach, Temple Hill. Nyes Place, c. 0.2 km S of Moulton Meadows Park 232 Comment
  SD251157  Diplachne fusca var. fascicularis Justin M. Wood 2010-9-29 2740 Orange Santa Ana Canyon: Santa Ana River, southwest of Green River Golf Course and north of Hwy 91 and Santa Ana River Trail. (Black Star Canyon ) 128 Comment
  SEINET13682959  Diplacus aurantiacus R. Nelson, Baumann, Kondratieff, Sargent 1988-1-12 5117 Orange Cleveland NF, San Juan Creek at Lower San Juan Campground. 366 Comment
  CAS-BOT-BC152263  Diplacus clevelandii E. K. Balls 1958-6-27 23279 Orange Road to Santiago Peak from Silverado Canyon, 3.8 mi. from gate. 975 Comment
  CAS-BOT-BC150843  Diplacus puniceus Alice Eastwood; John Thomas Howell 1937-4-24 3930 Orange 2 miles east of San Juan Hot Springs Comment
  SD42976  Diplacus puniceus Ethel B. Higgins 1948-3-1 Orange Near San Juan Camp Comment
  CAS-BOT-BC43548  Diplotaxis muralis Ira L. Wiggins 1965-10-25 20302 Orange Along curb way on Dorothy Lane near corner of Lincoln Avenue, Fullerton. Comment
  UCD114711  Diplotaxis tenuifolia W. W. Robbins 1931-5-11 2204 Orange Santa Ana. Comment
  RSA125088  Distichlis littoralis P. H. Raven 1958-7-5 13562 Orange Just north of Surfside. Comment
  UCR240095  Distichlis littoralis Dick Newell, Judy Booth, Don Millar 2012-11-28 311 Orange South Coast, Newport Beach, Back Bay, 0.8 mi. due south of University Drive, off Brown Trail 1 Comment
  IRVC24786  Draba cuneifolia var. integrifolia Karlin G. Marsh 1989-3-4 Orange Lomas Ridge, ridge between Hicks and Rattlesnake Canyons. Lomas de Santiago 210 Comment
  RSA701654  Drymocallis glandulosa Keith E. Hoffmaster 1935-5-5 s.n. Orange San Juan Canyon., Santa Ana Mts. Comment
  UC1950970  Drymocallis glandulosa A. C. Sanders with Fred M. Roberts 2008-4-8 34762 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago, Loma Ridge, SSE of Santiago Reservoir on Loma Ridge Spur Rd., above Dripping Springs Loop Rd. El Toro 7.5' Quad. Comment
  POM366539  Drymocallis glandulosa var. wrangelliana Christopher Davidson 1977-5-18 5633 Orange Santa Ana Mts. Cleveland National Forest, Falcon campground 1006 Comment
  IRVC16264  Dryopteris arguta L. Fox 1978-5-9 s.n. Orange Upper Trabuco Canyon. Santa Ana Mountains Comment
  IRVC22504  Dryopteris arguta Fred M. Roberts 1985-5-1 1698 Orange Aliso Canyon, 2.1km NNE Aliso Peak, Aliso Viejo 67 Comment
  UCR193840  Dryopteris arguta A. C. Sanders, Fred M. Roberts 2008-7-16 35862 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hangmans Tree Canyon 379 Comment
  RSA759111  Dryopteris arguta Robert Allen, Reginald Durant 2008-9-28 s.n. Orange Laurel Spring, just below Harding Truck Trail., Survey Waypoint #85. Comment
  UCSB48105  Dryopteris arguta Fritzke, S.; Roberts, Fred 1982-4-3 Orange Santa Ana Mtns.: San Juan Canyon, 2.4km ENE San Juan Guard Station; 0.3km WSW Bench Mark 1100. 88 Comment
  RSA659892  Dudleya Karl Price 1988-5-21 43 Orange An unnamed side canyon within Hot Springs Canyon. It is on Hot Springs Canyon Rd., 0.75 mi. North of Ortega Hwy. (74), 12.6 mi. East of San Juan Capistrano. 304 Comment
  LA204784  Dudleya blochmaniae subsp. blochmaniae Joan Malloy; 1952-5-18 sn Orange Salt Creek Beach, Laguna Comment
  RSA678502  Dudleya blochmaniae subsp. blochmaniae Fred M. Roberts, Robt Allen, Carol A. Roberts 2003-5-11 5863 Orange Dana Point Headlands: hilltop, 0.6km SSW Richard Henry Dana School south of Pacific Coast Highway and north of Scenic Drive. 73 Comment
  CAS-BOT-BC109689  Dudleya cymosa subsp. ovatifolia K. Nakai 1979-10-30 542 Orange Santa Ana Mountains, Santiago Canyon, end of Modjeska Road. 487 Comment
  IRVC25461  Dudleya lanceolata Fred M. Roberts 1987-4-21 3386 Orange Aliso Creek, Aliso Creek Bike Trail, 3.0km ENE Moulton Peak, Aliso Viejo 73 Comment
  POM6660  Dudleya lanceolata P. A. Munz 1919-5-4 s.n. Orange Laguna Canyon. Comment
  RSA278324  Dudleya lanceolata C. W. Tilforth, W. Wisura 1979-5-23 s.n. Orange Mouth of Aliso Canyon, south Laguna. Comment
  RSA699757  Dudleya lanceolata Fred M. Roberts, D. E. Bramlet 2003-6-6 5885 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, Cristianitos Cyn., 1.41km SSW Gato Gate and 0.35km NNW of SDG&E substation. 117 Comment
  RSA743454  Dudleya lanceolata Fred M. Roberts 2008-7-10 7074 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
  RSA747701  Dudleya lanceolata Fred M. Roberts 2008-5-16 6974 Orange Dana Point: Dana Point Headlands, CNLM Preserve, near Strands Road Gate, 0.8km WNW Marine Institute, Dana Point Harbor. 65 Comment
  CAS-BOT-BC109671  Dudleya multicaulis K. Nakai 1981-6-4 774 Orange 0.3 mile east of Laguna Canyon Road on El Torro Road. 91 Comment
  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
  RSA552936  Dudleya multicaulis Fred M. Roberts 1989-5-7 4337 Orange Lomas De Santiago: 1.8km W Santiogo Reservoir Spilway, 4.0 km SW Sierra Peak. 213 Comment
  RSA594811  Dudleya multicaulis Fred M. Roberts, Edna Rey, Kay Stockwell 1993-5-6 4880 Orange El Modena: Lomita Ave, ca. 0.4 km by road E Santiago Blvd., 0.4 km W Bauer Survey Marker. 122 Comment
  UC1015322  Dudleya multicaulis Reid Moran 1950-5-24 3412 Orange 1.5 mi above mouth of Laguna Canyon; Laguna Canyon Comment
  RSA13068  Dudleya pulverulenta P. C. Everett 1935-7-5 2361 Orange Rancho Santa Ana, Santa Ana Canyon hill N of Grapefruit orchard 152 Comment
  RSA13069  Dudleya pulverulenta P. C. Everett 1935-7-5 2361 Orange Rancho Santa Ana, Santa Ana Canyon hill N of Grapefruit orchard 152 Comment
  RSA757121  Dudleya pulverulenta A. C. Sanders, Fred M. Roberts, Jutta Burger 2009-10-21 37192 Orange Lomas de Santiago, lower Hangmans Tree Canyon. 379 Comment
  RSA703883  Dudleya pulverulenta subsp. pulverulenta Fred M. Roberts, D. E. Bramlet 2004-7-30 6080 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, Western slopes of Cristianitos Cyn., 0.25km W Sycamore Gate and Cristianitos Road. 151 Comment
  UC933338  Dudleya pulverulenta subsp. pulverulenta Reid Moran 1948-6-23 3099 Orange n side Aliso Canyon; Laguna Beach Comment
  CAS-BOT-BC109745  Dudleya stolonifera K. Nakai 1978-4-19 359 Orange Aliso Canyon, ca. 300 m east of California Highway 1. 10 Comment
  NY387891  Dudleya stolonifera R. V. Moran 1948-6-23 3095 Orange This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  POM301408  Dudleya stolonifera Reid V. Moran 1949-7-2 3286 Orange Laguna Canyon, 1.7 miles below Toro Road jct. 1.5 miles above canyon mouth 244 Comment
  POM48549  Dudleya stolonifera F. M. Reed 1925-5-14 4994 Orange Aliso Canon. Comment
  SBBG96432  Dudleya stolonifera R. Moran 1977-6-13 24230 Orange Willow Cyn, tributary of Laguna Cyn 125 Comment
  UCR67711  Dudleya stolonifera Reid Moran 1977-6-13 24230 Orange Willow Canyon, tributary of Laguna Canyon. 125 Comment
  CAS-BOT-BC109766  Dudleya viscida Carl B. Wolf 1936-6-17 7948 Orange Santa Ana Mountains, along Ortega Highway, 0.6 mile below San Juan Hot Springs. 182 Comment
  RSA562748  Dudleya viscida Steve Boyd, Timothy S. Ross 1992-5-19 7444 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
  RSA0045323  Echinochloa Keith E. Hoffmaster 1940-7-22 961 Orange Santa Ana Comment
  RSA789588  Echinochloa crus-galli R. F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49634 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs Comment
  UC1543182  Echinochloa crus-galli Donald G. Nelson 1935-6-28 341 Orange W. Orange thorpe Ave. sw Fullerton Comment
  UCD60914  Echinochloa crus-galli Ira L. Wiggins 1965-11-7 20356 Orange Vacant lot between State College Blvd. and Troy High School campus, Fullerton. Comment
  RSA713568  Echinochloa crus-galli R. E. Riefner Jr. 2005-7-9 5 -552 Orange City of Huntington Beach, Huntington Central Park, Goldenwest St. near Slater Ave. 2 Comment
  CAS-BOT-BC445606  Echinodorus berteroi R. E. Riefner 2000-8-21 20 -728 Orange Santa Ana Mtns.: Irvine Lake [Santiago Reservoir], first cove east of the dam. 238 Comment
  UC814517  Echinodorus berteroi I. M. Johnston 1918-9-3 2151 Orange Laguna Canyon San Joaquin Hills, Laguna Canyon 106 Comment
  RSA0125888  Echium candicans Fred M. Roberts 2012-5-4 7545 Orange San Joaquin Hills: Buck Gully, along San Joaquin Hills Road, just west of Harbor Watch Park, 2.9 km W Signal Peak. 174 Comment
  RSA151075  Eclipta prostrata Peter H. Raven 1961-10-15 16859 Orange Dyke along road to Yorba Linda just north of US Hwy 91 114 Comment
  UC1543168  Eleocharis Donald G. Nelson 1935-4-15 297 Orange On road from Garden Grove to Costa Mesa, converging toward Costa Mesa near the main highway from Santa Ana Comment
  UC1784199  Eleocharis macrostachya Donald G. Nelson 1935-4-15 307 Orange on road from Garden Grove to Costa Mesa, converging near Costa Mesa, toward main highway from Santa Ana Comment
  RSA791461  Eleocharis montana Keith E. Hoffmaster 1927-10-11 149 Orange Santa Ana. Comment
  RSA717154  Eleocharis montevidensis Fred M. Roberts, Chris M. Barnhill 2005-9-27 6283 Orange San Juan Capistrano: San Juan Creek wash, east of La Novia Road bridge, 1.4 km E Mission San Juan Capistrano. 27 Comment
  UCR174181  Eleocharis montevidensis A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33048 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
  RSA685930  Eleocharis palustris Fred M. Roberts, David E. Bramlet 2003-3-27 5613 Orange Rancho Mission Viejo: Donna O Neill Land Conservancy, western slopes of Chistianitos Canyon, 0.8km N Sycamore Gate 0.15km W Cristianitos Road; (San Clemente). 139 Comment
  RSA799812  Eleocharis palustris Justin M. Wood 2011-6-28 4304 Orange South Coast: City of Costa Mesa. Fairview Park, just WNW of Marison Special Education Center. Just W of parking area. 25 Comment
  RSA642520  Eleocharis radicans D. E. Bramlet 1998-7-16 2653 Orange San Juan Creek, City of San Juan Capistrano. 2.3km east of the San Diego freeway (I-5). 91m south of the end of Avenida Siega and 152m north of San Juan Creek Road. 38 Comment
  CAS-BOT-BC112211  Eleocharis rostellata John Thomas Howell 1927-7-21 2807 Orange Marsh, Santa Ana River bottom, Santa Ana Canyon 152 Comment
  RSA735122  Eleusine coracana subsp. africana R. E. Riefner 2006-10-4 6 -477 Orange City of Huntington Beach, along Slater Ave. near Goldenwest St. 11 Comment
  UCR236681  Eleusine indica Fred M. Roberts, Sandra L. Leatherman 2008-9-17 7103 Orange Peninsular Ranges, Santa Ana River Canyon: Yorba Linda Regional Park adjacent to Santa Ana River, South of La Palma Ave. and 1.7 km ENE Imperial Hwy. bridge over river 87 Comment
  SEINET10561498  Elymus X hansenii Alvares ALVARES 1814 Orange Santrago P.K. Trail. Comment
  UCR191242  Elymus condensatus A. C. Sanders 2008-4-29 35137 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
  UCR177693  Elymus glaucus Fred M. Roberts 2003-5-1 5687 Orange Coastal Plains & Basins; South Coastal Plain region, Rancho Mission Viejo: Donna O'Neill Land Conservancy, Cristianitos Cyn., 0.56 km SSW Gato Gate and 0.21 km west of Cristianitos Rd. 96 Comment
  UCR215297  Elymus glaucus var. glaucus Fred M. Roberts 2008-5-7 6940 Orange Lomas de Santiago, Limestone Ridge between Dripping Spring and Limestone Canyon, 3.5 km NW of Bolero Lookout and 1.7 km east of Bee Peak. Irvine Ranch Conservancy 481 Comment
  RSA0127347  Emmenanthe penduliflora var. penduliflora Fred M. Roberts 2016-4-29 8050 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
  HSC5474  Encelia californica J. W. Johnson 1961-3-29 Orange Newport Beach, slope overlooking Upper Newport Bay. Comment
  POM356655  Encelia californica E. Crow 1929-2-22 162 Orange Gypsum Canyon, Snata Ana Mts, S of Corona Comment
  POM360026  Encelia californica Robert W. Townsend 1939-7-28 159 Orange Roadsie of Higway west of Atwood Comment
  POM4950  Encelia californica P. A. Munz 1918-5-4 2225 Orange Laguna Beach 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
  RSA696884  Encelia californica Kenneth Beard 1934-03 s.n. Orange Waste land along road near Placentia. Comment
  RSA719414  Encelia californica Fred M. Roberts, Lee Ann Caranza 2006-10-25 6452 Orange Dana Point Headlands south of Margarite Drive, 0.6km W Marine Institute and 1km SW Cook Sch. 58 Comment
  UCR219803  Encelia californica 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
  UC1118064  Encelia californica H. E. Norton 1931-3-1 53 Orange Corona #1 Corona Quadrangle Comment
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Apr 24 2014
  RSA511  Epilobium canum subsp. canum J. T. Howell 1927-7-26 480 Orange Claymine Canon near Sierra Peak. 244 Comment
  RSA72094  Epilobium canum subsp. canum F. W. Peirson 1923-9-7 4040 Orange Summit of Santiago Peak. Santa Ana Mountains. 1723 Comment
  SBBG16491  Epilobium canum subsp. canum E. B. Carlton 1961-9-3 7 Orange E on Hidden Valley Rd, ca. 1 mi from Broadway and S Coast Blvd, Laguna Beach Comment
  SD245160  Equisetum arvense R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49566 Orange Santa Ana Mountains: San Joan Canyon at Lower Picnic Camp, just below Ortega Highway (74) Comment
  SD236144  Eragrostis A. C. Sanders, Fred M. Roberts 2008-9-18 36091 Orange Peninsular Range; Santa Ana Mtns. Foothills: Lomas de Santiago, Santiago Creek Canyon c. 0.5-0.8 miles above the highway bridge 299 Comment
  UCR197700  Eragrostis A. C. Sanders, Fred M. Roberts 2008-9-18 36091 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Santiago Creek Canyon c. 0.5-0.8 miles above the highway bridge 300 Comment
  RSA612207  Eragrostis cilianensis L. C. Wheeler 1932-8-13 1131 Orange 2 miles N Claremont. 412 Comment
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Nov 15 2013
  UCR236675  Eragrostis pilosa Fred M. Roberts, Sandra L. Leatherman 2008-9-17 7105 Orange Peninsular Ranges, Santa Ana River Canyon: Yorba Linda Regional Park adjacent to Santa Ana River, South of La Palma Ave. and 1.7 km ENE Imperial Hwy. bridge over river 87 Comment
  CAS-BOT-BC187932  Eriastrum densifolium subsp. sanctorum John Thomas Howell 1927-8-13 2985 Orange Santa Ana River bottom, Santa Ana Canon [Canyon] 152 Comment
  UCR192738  Eriastrum sapphirinum A. C. Sanders, Fred M. Roberts 2008-5-6 35222 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
  RSA0122944  Eriastrum sapphirinum subsp. dasyanthum Scott D. White, Michael Honer 2003-5-29 9430 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
  RSA0121319  Eriastrum sapphirinum subsp. dasyanthum Fred M. Roberts, Carol A. Roberts 1990-5-16 4628 Orange Santa Ana Mtns: Small canyon along SE side of Irvine Mesa, 3.5 km N Bolero Lookout 396 Comment
  JEPS19147  Ericameria palmeri var. pachylepis John Thomas Howell 1927-9-24 3114 Orange Santa Ana Canon Rancho Santa Ana, Santa Ana Canon 152 Comment
  OBI45880  Ericameria palmeri var. pachylepis B. Pitzer, D. Hawks 1986-10-21 345 Orange Lomas de Santiago, ca. 10 mi E of Santa Ana, in hills N and E of south Coast Gun Club on Jeffrey Rd in Hicks Canyon 183 Comment
  POM201508  Ericameria palmeri var. pachylepis L. M. Booth 811 Orange Santa Ana Canyon Comment
  RSA167489  Ericameria parishii R. F. Thorne, John Olmsted 1963-7-26 32830 Orange Santa Ana Mts., Cleveland National Forest, Trabugo District. 1189 Comment
  CAS-BOT-BC293369  Erigeron Philip A. Munz 1946-10-2 11554 Orange Rancho Santa Ana, Santa Ana River Canyon 121 Comment
  SD98909  Erigeron foliosus Darley Howe 1976-6-4 4905 Orange Trubuco Canyon, Santa Ana Mountains. Comment
  CAS-BOT-BC296212  Erigeron foliosus var. foliosus John Thomas Howell 1927-6-1 2405 Orange Southern Puente Hills in teh SAnta Ana Canyon Comment
  POM357496  Erigeron foliosus var. stenophyllus M. B. Dunkle 1934-6-18 3977 Orange San Juan Canyon 457 Comment
  POM6358  Erigeron foliosus var. stenophyllus P. A. Munz 1919-5-3 2656 Orange Santa Ana River Canyon. 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
  RSA93112  Erigeron philadelphicus F. W. Peirson 1924-2-9 4522 Orange Between Wintersberg and the sea. Comment
  RSA171104  Eriodictyon crassifolium Robert F. Thorne 1963-7-26 32836 Orange Tin Mine Canyon above Beek s Spring, Trabuco District, Cleveland National Forest 854 Comment
  RSA763546  Eriodictyon crassifolium Doris Bowers 1971-4-19 1694 Orange Black Star Canyon Indian Site 762 Comment
  RSA0045584  Eriodictyon crassifolium Ken Eastman 1932-5-8 s.n. Orange Saddle Back Comment
  UC1925892  Eriogonum Donald G. Nelson 1936-6-5 438 Orange Hills NE of Fullerton. 91 Comment
  RSA7477  Eriogonum elongatum Carl B. Wolf 1933-8-24 5401 Orange Summit of Santiago Peak, Santa Ana Mountains. 1732 Comment
  UCR239655  Eriogonum elongatum var. elongatum Fred M. Roberts 2012-4-27 7542 Orange Lomas de Santiago, Loma Ridge, west of SR 241, tributary to 'Las Flores' Canyon, near East Loma Ridge Road, 1.6 km southwest Irvine Lake Park Campground and 1.2 km east-southeast of Orange County Emergency Operations Center, Hill 1311 308 Comment
  CDA23118  Eriogonum fasciculatum Eric Chu, Alyssa J. Lai 2006-2-4 1 Orange Southern Coastal; San Joaquin Marsh; northwest edge of Marsh. Comment
  POM201739  Eriogonum fasciculatum L. M. Booth 1932-7-27 s.n. Orange Corona del Mar, Newport Beach, Bluff Ravine Comment
  RSA734985  Eriogonum fasciculatum subsp. polifolium A. C. Sanders, T. B. Salvato 2008-5-13 35382 Orange Lomas de Santiago, Santiago Canyon above (S of) mouth of Hangman Tree Canyon, just below Modjeska Canyon confluence 366 Comment
  CAS-BOT-BC253216  Eriogonum fasciculatum var. fasciculatum John Thomas Howell 1927-7-24 2835 Orange Near mouth of Claymine Canyon, Santa Ana Canyon 152 Comment
  CAS-BOT-BC253222  Eriogonum fasciculatum var. fasciculatum David D. Keck 1932-9-30 1903 Orange 2 mi. W. of Laguna Beach Comment
  UCD105101  Eriogonum fasciculatum var. fasciculatum K. M. Meyer; A. Townesmith 2007-3-10 4 Orange Cleveland National Forest, 0.5 mi. N. Main Divide Rd./NF3S04, off Hwy. 74. Elsinore Mountains, ridge top. 917 Comment
  CAS-BOT-BC249947  Eriogonum fasciculatum var. foliolosum John Thomas Howell 1927-7-24 2836 Orange Near entrance to Claymine Canon [Canyon], Santa Ana Canon [Canyon] 152 Comment
  CAS-BOT-BC249949  Eriogonum fasciculatum var. foliolosum Helen D. Geis 1902-1-1 524 Orange Santiago Cr. 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
  UCSB52907  Eriogonum gracile Roberts, Fred 1984-8-14 Orange Chiquito Basin Trail; ridge between Chiquito Basin and Lion Canyon; 2.6km SSE Los Pinos Peak; 1.3km SSW Blue Jay Camp ground; Santa Ana Mtns 885 Comment
  SEINET253385  Eriogonum gracile var. gracile L. M. Booth 1933-8-26 1386 Orange Dry hillside Newport Lagoon Comment
  POM18087  Eriogonum nudum var. pauciflorum P. A. Munz 1923-9-7 7750 Orange Santiago Peak, Santa Ana Mountains. 1646 Comment
  RSA7476  Eriogonum nudum var. pauciflorum Carl B. Wolf 1933-8-24 5400 Orange Summit of Santiago Peak, Santa Ana Mountains. 1732 Comment
  UCD100835  Eriogonum parvifolium A. C. Sanders 1990-10-6 10179 Orange Newport Bay, Westcliff Park area on the SW end of the bay, 1 km inland of Hwy 1. 1 Comment
  POM2292  Eriogonum parvifolium var. parvifolium D. L. Crawford s.n. Orange Abalone Pt Comment
  POM49170  Eriogonum parvifolium var. parvifolium I. M. Johnston 1924-7-10 s.n. Orange 1/2 mile S mouth Aliso Canyon. Comment
  RSA13107  Eriogonum thurberi Percy C. Everett 1935-5-17 6866 Orange Rancho Santa Ana, Santa Ana Canyon, 1/4 mi. S of Orange County Plant Sanctuary. 122 Comment
  SD40736  Eriogonum thurberi E. R. Johnson 1933-6-22 4999 Orange Rancho Santa Ana, Santa Ana Canyon river bottom S. of Walnut Grove 121 Comment
  CAS-BOT-BC297332  Eriophyllum confertiflorum Helen D. Geis 1902-12-1 s.n. Orange Santiago Creek Comment
  SEINET2051091 Image available Eriophyllum confertiflorum B. Pitzer 1987-4-24 504 Orange Santa Ana River at Gypsum Canyon, ca. .5 mi. N of Hwy 91. 113 Comment
  UCD150983  Eriophyllum confertiflorum D. S. Park 2010-4-25 28 Orange Whiting Ranch Wilderness Park, large population along trail. 224 Comment
  LA203538  Eriophyllum confertiflorum var. confertiflorum W. Pequegnat; 1937-9-6 sn Orange Santa Ana Mountains, Ortega Rd Comment
  RSA631401  Eriophyllum confertiflorum var. confertiflorum Valerie L. Soza, LeRoy Gross 1999-6-7 492 Orange West side of Modjeska Peak, along Main Divide Road. 1448 Comment
  UC1118325  Eriophyllum confertiflorum var. confertiflorum J. B. Spring 1931-4-14 33 Orange Cold Spring Harbor Elsinore Quadrangle, Cold Spring Harbor 457 Comment
Read comments
Jan 11 2007
  RSA748805  Erodium botrys G. Gust, L. Nye 2005-3-12 566 Orange Cleveland National Forest, on Hwy 74 ca. 0.5 m W of county boundary with Riverside at a pullout. 401 Comment
  UCR103158  Erodium brachycarpum Scott D. White 1997-3-25 4822 Orange University of California, Irvine campus, site of proposed student recreation center, east of main campus. Existing 'Farm School' and grasslands (horse pasture) between California Avenue and Culver Drive. 30 Comment
  HSC8470  Erodium cicutarium C. L. Hitchcock 1966-3-15 24137 Orange 1/2 mi. E of Brea Comment
  UCD103257  Erodium cicutarium C. L. Hitchcock 1966-3-15 24138 Orange 1/2 mile e. of Brea. Comment
  CDA25634  Eschscholzia californica A. C. Sanders, Fred M. Roberts, A. O Neal 2008-5-9 35308 Orange Peninsular Range; Santa Ana Mountains; Weir Canyon, along fire line/bulldozer cut, c. 1.5 miles east of Walnut Canyon Reservoir. Comment
  RSA722436  Eschscholzia californica Gray 1912-05 s.n. Orange El Modena. Comment
  CDA21564  Eucalyptus camaldulensis Mark A. Elvin, D. G. Kelch 2006-12-9 5316 Orange Southern Coastal; Irvine; San Diego Creek, edge of San Joaquin Marsh, beside University Drive, between Campus Drive and Highway 73. Comment
  RSA0012593  Eucalyptus erythrocorys R. E. Riefner Jr. 2007-9-27 7 -414 Orange City Laguna Niguel, along Forbes Road near Crown Valley Parkway, W of I-5 Freeway. Comment
  UCR103193  Eucalyptus globulus Scott D. White 1997-3-26 4816 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
  SEINET781957  Eucalyptus tereticornis Irvine Ranch, Boy Scout Camp in Peters Canyon 1987-4-16 400 Orange Irvine Ranch, Boy Scout Camp in Peters Canyon E of Tustin, l mi. NE of the Irvine Blvdl Myford Rd. intersection. (Near 33d 50'N, ll7d 50'W.) In an old plantation ca. 80 yrs. old. Comment
  POM50213  Eucrypta chrysanthemifolia Helen D. Geis 1902-1 513 Orange Santiago Creek. Comment
  JEPS1720  Eucrypta chrysanthemifolia var. chrysanthemifolia L. M. Booth 1932-5-19 1063 Orange Newport Bay Comment
  SD220055  Euphorbia albomarginata Mark A. Elvin 2004-5-2 3428 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7 km (air) NNW UC Irvine campus center. 3 Comment
  RSA2077  Euphorbia crenulata C. B. Wolf 1931-3-6 1852 Orange Trabuco Canyon, 1.5 mile below Trabuco Camp Grounds, west slope of Santa Ana Mountains. 610 Comment
  UCR240164  Euphorbia misera R. E. Riefner Jr. 2012-12-5 12- 587 Orange South Coast, city of Dana Point, Dana Point Harbor, Dana Harbor Drive near Cove Road 9 Comment
  UCR240174  Euphorbia misera R. E. Riefner Jr. 2012-10-16 12- 518 Orange South Coast, city of Dana Point, Dana Point Harbor, 'Bluff Top Trail' located near Camino Capistrano and Violet Lantern Streets 35 Comment
  UCR52297  Euphorbia polycarpa B. G. Pitzer, D. C. Hawks 1986-12-17 0381 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, on Santiago Cyn Rd., c. 1.0 mi SW of [Irvine Lake] Santiago Reservoir 305 Comment
  UCR239630  Euphorbia polycarpa var. polycarpa Fred M. Roberts 2012-4-24 7514 Orange San Joaquin Hills, Buck Gully, west of intersection of Ridge Park Road and Newport Coast Drive, 1.5 km west of Signal Peak 179 Comment
  UCR221457  Euthamia occidentalis Dick Newell, Don Millar 2010-10-15 46 Orange South Coast, Back Bay Drive, city of Newport Beach, 0.7 mi. due west of Jamboree Rd. 3 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
  UCSB47952  Festuca microstachys Roberts, D. 1980-5-3 Orange 2.0 km West Trabuco peak (on Main divide Truck trail) 125 Comment
  RSA731756  Ficus elastica Fred M. Roberts, Sandy Leatherman 2007-11-9 6649 Orange San Juan Canyon along San Juan Creek, within the community of San Juan Hot Springs. 216 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
  UC2046890  Ficus microcarpa R. E. Riefner Jr. 2015-8-29 15 -368 Orange City of Rancho Santa Margarita, Trabuco Marketplace, Rancho Santa Margarita Blvd. at Plano Trabuco. Comment
  CAS-BOT-BC474735  Ficus rubiginosa R. E. Riefner, Jr. 2015-8-27 15 -356 Orange City of Laguna Beach, S side of Beach St. E of Broadway Ave (Hwy 133) 7 Comment
  UCR114389  Filago arizonica D. E. Bramlet 2000-4-17 2986 Orange Santa Ana Mtns. Region, 1.9 km west of Blind Canyon and 366 m north of Irvine Park, 31 m SW of the MWD access road 268 Comment
  RSA542429  Filago gallica Bill O'Connell 1991-5-31 5 Orange San Joaquin Hills: Pelican Hill, west side 190 Comment
  RSA797822  Filago gallica R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49811 Orange Santa Ana Mountains: Trabuco Canyon Comment
  UCR102018  Filago gallica B. G. Pitzer 1997-3-25 3021 Orange San Joaquin Hills, Crystal Cove State Park, Pelican Point Area, grassland between Pacific Coast Hwy and the bike trail 30 Comment
  HSC87010  Frangula californica Reid Moran 1975-7-18 22596 Orange Bottoms of Upper Trabuco Canyon, Santa Ana Mtns. 725 Comment
  CAS-BOT-BC63026  Frangula californica subsp. californica E. W. Lathrop 1974-6-27 7412 Orange 5 mi. e. of Trabuco Oaks, Trabuco Canyon, Cleveland Nat'l Forest. 396 Comment
  CAS-BOT-BC63070  Frangula californica subsp. californica P. C. Everett 1935-6-17 7137 Orange Santa Ana Mts., Coldwater Canyon, 1/2 mi. above Glen Ivy Resort. 457 Comment
  CAS-BOT-BC63071  Frangula californica subsp. californica P. C. Everett 1935-6-17 7137 Orange Santa Ana Mts., Coldwater Canyon, 1/2 mi. above Glen Ivy Resort. 457 Comment
  CAS-BOT-BC63072  Frangula californica subsp. californica Carl B. Wolf; E. R. Johnson 1933-11-3 5532 Orange Santa Ana Mts., Silverado Canyon, base of Silverado Motorway. 731 Comment
  CAS-BOT-BC53336  Frangula californica subsp. cuspidata P. C. Everett 1935-6-18 7217 Orange Santa Ana Mts., Summit of Santiago Pk. 1731 Comment
  SD82963  Frankenia salina C. Davidson 1970-7-25 1494 Orange Bolsa Chica; Signal oil field. Comment
  RSA554469  Frasera parryi Don Pendleton 1992-5-16 92 -18 Orange Cleveland National Forest, NW of El Cariso, on trails near Flacoln Group Camp. 823 Comment
  RSA464916  Fraxinus dipetala Albert J. Perkins 1923-6-24 s.n. Orange Silverado Canyon Comment
  UCR261699  Fraxinus dipetala Dick Newell, Judy Booth 2014-5-15 371 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, Maple Springs Rd./Silverado Canyon Rd., 0.87 road miles east of the lower Maple Springs gate 623 Comment
  SD175837  Fraxinus uhdei D. G. Kelch 2006-12-9 6 535 Orange Along Newport Back Bay Dr. in side canyon. 6 Comment
  UCR139446  Fraxinus velutina var. coriacea E. R. Johnson 1936-4-27 7781 Orange Santa Ana River Canyon, Rancho Santa Ana Botanic Garden, Santa Ana River SW of Mexican Village 122 Comment
  RSA749449  Fritillaria biflora Fred M. Roberts 2009-4-11 6885 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
  CAS-BOT-BC422452  Fumaria officinalis Ira L. Wiggins 1966-2-16 20445 -A Orange On N. side of Yorba Linda Blvd., near corner of Associated Road, Fullerton. Comment
  RSA201607  Fumaria parviflora Unspecified 1969-3-2 s.n. Orange East of Trabuco and Yale roads 91 Comment
  RSA565  Funastrum cynanchoides var. hartwegii J. T. Howell 1927-7-24 469 Orange Claymine Canyon, near Sierra Peak 152 Comment
  UCR132569  Gaillardia X grandiflora Robert DeRuff 2001-9-19 s.n. Orange Southern Coast, Newport Back Bay, Shellmaker Island 1 Comment
  LA208397  Galium angustifolium Norman C. Cooper; 1944-6-4 Orange San Juan Canyon 304 Comment
  RSA708287  Galium angustifolium Scott D. White, Jennifer H. Jones 2005-3-31 10860 Orange South Coast: City of Laguna Beach. 549 Nyes Place. Proposed home site on ca. 0.5 acre. 91 Comment
  UCR140808  Galium angustifolium Robin G. Marushia 2004-4-16 018 Orange Southern Coast, El Moro Canyon, Crystal Cove State Park, Laguna Beach; grassy ridge southwest of No Name Ridge road in park, downhill from pullout and below closed road to park entrance 244 Comment
  JEPS7862  Galium angustifolium subsp. angustifolium Lawrence M. Booth 1932-7-4 1241 Orange Newport Bay Comment
  POM201752  Galium angustifolium subsp. angustifolium L. M. Booth 1932-6-4 1152 Orange Newport Lagoon. Comment
  RSA598920  Galium angustifolium subsp. angustifolium Scott D. White 1997-3-28 4850 Orange Above Modjeska Canyon, proposed water tank site. 425 Comment
  CAS-BOT-BC94862  Galium nuttallii subsp. nuttallii R. C. Wenk 2008-3-24 722 Orange Chino Hills S.P., South Ridge Road west of San Juan Hill, going W from Equestrian Staging Area 441 Comment
  RSA682911  Galium parisiense Scott D. White, Amanda Duchardt 2003-5-1 9160 Orange Santa Ana Mountain Foothills: Slopes above west side of Trampas Canyon. 107 Comment
  UCR215296  Galium parisiense Fred M. Roberts 2008-5-20 7133 Orange Lomas de Santiago, Loma Ridge, upper Limestone Canyon, 0.8 km NW of Bolero Spring and 3.1 km WNW of Bolero Lookout. Irvine Ranch Conservancy 467 Comment
  RSA543971  Galium porrigens Steve D. Boyd, Orlando Mistretta 1991-5-9 6202 A Orange Crest of range at Oak Flat, SE of Sierra Peak, just West of Riverside County Line. 793 Comment
  RSA753  Galium porrigens J. T. Howell 1927-6-24 204 Orange Aliso Canyon, Rancho Santa Ana. 274 Comment
  RSA444682  Gamochaeta pensylvanica J. C. Roos 1965-6-16 s.n. Orange Dana Point. Comment
  UCR190985  Gamochaeta stagnalis A. C. Sanders, Fred M. Roberts 2008-4-22 34993 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
  UC1080593  Garrya flavescens E. K. Balls and P. C. Everett 1957-11-25 22847 Orange 1.1 mi e Silverado 883 Comment
  RSA7396  Garrya flavescens var. pallida Carl B. Wolf 1933-8-24 5383 Orange Along main divide near Bedford Peak. Comment
  RSA702684  Gastridium phleoides Scott D. White, Michael Honer 2004-5-17 10398 Orange City of Laguna Niguel. Ridges and open slopes directly north of the intersection of Crown Valley Parkway and Pacific Island Dr. 61 Comment
  CDA25797  Gastridium ventricosum A. C. Sanders, Fred M. Roberts, A. O Neal 2008-5-9 35321 Orange Peninsular Range; Santa Ana Mountains; Weir Canyon, 0.3 mile west of Eastern Transportation Corridor (Highway 241) and 1.45 miles east of south end of Walnut Canyon Reservoir. Comment
  CDA5145  Gaura coccinea Margaret Bellue, Andreas, E. L. Paddock 1942-8-29 Orange Stearns, La Brea Road, 1 mile north of Fullerton 0 Comment
  SEINET10728263  Gazania David B. Dunn 1971-8-13 Dunn 18118 Orange Cultivated plants vicinity of Laguna Beach. Comment
  RSA0127604  Geranium carolinianum Fred M. Roberts 2016-3-25 8034 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
  UCD170654  Geranium incanum R. E. Riefner Jr. 2012-12-5 12- 588 Orange South Coast, city of Dana Point, Dana Point Harbor, Dana Harbor Drive near Cove Road. 9 Comment
  OBI82102  Geranium incanum var. multifidum Unknown 2012-6-30 12 -285 Orange City of Costa Mesa, Talbert Regional Park, general vicinity of Balboa Blvd. and 19th Street 5 Comment
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Apr 23 2020
  RSA797023  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. 5 Comment
  RSA749296  Gilia achilleifolia Fred M. Roberts, Linda Farley 2008-3-28 6816 Orange Santa Ana Mtns.: Upper Weir Cyn., east fork along ridge just west of SR241, 3.4 km E Robber's Peak, Irvine Land Conservancy. 437 Comment
  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
  UCR237930  Gilia angelensis Dick Newell, Don Millar 2012-6-5 271 Orange Peninsular Range; Santa Ana Mtns., Loma Ridge East, 0.35 mi. due east of Hicks Haul Rd. 411 Comment
  SEINET6969922  Gilia angelensis W. P. Vestal, A. G. Vestal 1955-3-24 3460 Orange Trabuco Canyon, about 5 miles east of El Toro. Comment
  UCR209658  Gnaphalium californicum Fred M. Roberts 2008-5-16 6986 Orange South Coast, Dana Point Headlands, Center for Natural Lands Mgmt. Preserve north of Marguerita Drive, 0.5 km west-northwest of the Marine Institute, Dana Point Harbor 75 Comment
  IRVC17346  Gnaphalium luteo-album Gordon A. Marsh, A. B. McGee 1980-4-11 Orange San Joaquin Freshwater Marsh along dike road; in full sun with grasses. Irvine Comment
  IRVC24748  Gnaphalium stramineum Fred M. Roberts 1986-4-29 2818 Orange Turtle Rock, above corner of Ridgerout Dr. and Turtle Rock Dr., 1.1km SE French Hill, Irvine 141 Comment
  IRVC26733  Grindelia Mark A. Elvin 2004-6-18 3522 Orange UCI Arboretum Southern Coastal 15 Comment
  RSA0012753  Grindelia camporum Fred M. Roberts 2012-5-10 7578 Orange San Joaquin Hills: Buck Gully, south tributary, north slope Pelican Hill, just north of Pelican Hills Drive, 0.7 km N Pelican Hill summit. 154 Comment
  RSA161302  Grindelia camporum var. bracteosa Peter H. Raven 1959-4-30 14038 Orange Base of ocean bluffs just N of San Clemente. Comment
  RSA234515  Grindelia camporum var. bracteosa James Henrickson 1970-7-24 4962 Orange 1.5 miles NW of Huntington Beach, along border of Bolsa Chica Salt Marsh at SW end of Huntington Beach Mesa. 8 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
  RSA753161  Guillenia lasiophylla D. E. Bramlet 2008-3-31 4133 Orange 305m E of Upper Hicks Haul Rd, in Trib to Limestone Cyn., 1km S of Santiago Cyn. Rd. 311 Comment
  POM359185  Gutierrezia californica F. R. Fosberg 1931-6-21 749 Orange Lower Santiago Canyon. Comment
  JEPS18975  Gutierrezia sarothrae John Thomas Howell 1927-9-24 3111 Orange Santa Ana Canyon , Rancho Santa Ana 152 Comment
  SEINET10605899  Hainardia cylindrica Alan A. Beetle 1942-4-19 Beetle 3092 Orange 20 miles south of Santa Ana, road to Laguna, heavy clay mud of back beach. Comment
  RSA756326  Haplopappus menziesii A. C. Sanders, Fred M. Roberts, Jutta Burger 2009-10-21 37196 Orange Lomas de Santiago, Limestone Canyon, west of Limestone Canyon Rd. 366 Comment
  RSA0066582  Harpagonella palmeri R. E. Riefner 1995-3-29 95 -62 Orange San Clemente State Beach. Comment
  UCR234138  Hazardia squarrosa Dick Newell, Peter Wetzel 2011-8-30 217 Orange Peninsular Range; Santa Ana Mtns., Black Star Canyon Rd. and Edison Rd. 502 Comment
  UCR190995  Hedypnois cretica A. C. Sanders, Fred M. Roberts 2008-4-22 35059 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge c. 1/4 mi. SE of VABM Bee, above Bee Canyon landfill on road from Hicks Canyon Haul Rd. to Limestone Canyon, c. 3.5 miles WSW of Silverado 493 Comment
  UCR79270  Hedypnois cretica Steve Boyd, T. S. Ross 1992-5-20 7462 Orange Southern Santa Ana Mtns, San Mateo Canyon Wilderness Area: Western edge of the wilderness in Lucas Canyon along canyon floor from crossing of Lucas Canyon Trail, upstream 0.25 mi to spur trail leading to old mining habitations in side canyon. 412 Comment
  UCSB48061  Hedypnois cretica Fritzke, S.; Roberts, Fred 1982-4-3 Orange Dana Point Headlands: north of Dana Strand Rd., 0.5km W Dana Point Harbor; 0.8km SSW Richard Henry Dana School 80 Comment
  IRVC20494  Helianthemum scoparium var. vulgare Fred M. Roberts 1983-5-4 1029 Orange Temple Hill, Upper Rancho Laguna Canyon, 1.7km SSW Top of the World Sch.; 1.4km ENE Cactus Point, Laguna Beach 200 Comment
  IRVC772  Helianthus annuus D. DeVault 1965-3-28 Orange Corona del Mar, Bayside Dr. and Jamboree Rd. Newport Beach Comment
  RSA0027431  Helianthus annuus Fred M. Roberts 2013-7-18 7665 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
  RSA647889  Helianthus annuus Mark Breidenbaugh, Caralisa Breidenbaugh 1992-5-25 73 Orange 1/2 mile south of Chino Hills State Park Boundary. 228 Comment
  RSA696894  Helianthus annuus Kenneth Beard 1934-02 s.n. Orange Waste land along highway near Stanton. Comment
  RSA873  Helianthus annuus subsp. lenticularis J. T. Howell 1927-7-27 484 Orange Near ranch, Rancho Santa Ana 152 Comment
  IRVC14820  Helianthus gracilentus A. S. Boughey 1968-7-9 401 Orange Santa Ana mtns: upper Santiago Canyon. Peninsular Ranges Comment
  RSA725574  Helianthus gracilentus Fred M. Roberts, Robert L. Allen, Trish Smith 2007-6-15 6531 Orange dirt road along ridge between Black Star and Fremont Canyons, 4.4km ENE Irvine Lake spillway and 2.4km WSW Hidden Ranch. 662 Comment
  SD140191  Helianthus gracilentus B. Pitzer 1992-5-27 1963 Orange Cleveland National Forest. Along road (3S04) to Blue Jay Group Campground, off State Hwy 74 (Ortega Hwy). Approx. 2 miles (airline) west of El Cariso Campground. 762 Comment
  SEINET6413451  Helianthus gracilentus R. Spellenberg 2014-5-6 14773 Orange On California Highway 1 in South Laguna, 5 air km NNW of Dana Point. 50 Comment
  UCR192093  Helianthus gracilentus A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35293 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir 300 Comment
  CDA20834  Heliotropium curassavicum P. Akers 2006-3-25 PA 8 -06 Orange Peninsular Ranges; Yorba Linda. Santa Ana River S of La Palma Dr, 0.6-0.9 mi E of Yorba Linda Dr. 121 Comment
  RSA748266  Heliotropium curassavicum A. C. Sanders, Fred M. Roberts 2008-6-17 35498 Orange Lomas de Santiago, West Loma Ridge Spur Road c. 0.8 mi SW of Irvine Lake and 0.9 mi. SE of Sheriff s Training Facility, just east of Hwy 241 280 Comment
  RSA650818  Heliotropium curassavicum var. oculatum Daniel Truong 1991-5-13 27 Orange Irvine Regional Park, left field adjacent to main entrance, within 1/4 mile radius of 'closed area' Comment
  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
  UCD119421  Heliotropium curassavicum var. oculatum E. Frost 1996-5-11 16 Orange Newport Back Bay, 25 yards in along bike path. 7 Comment
  CSUSB739  Heliotropium curassavicum var. oculatum Cesareo Perez 1971-5-15 Orange Huntington State Beach Pacific Coast Highway @ Brookhurst, Huntington Beach, CA. Comment
  RSA234522  Hemizonia australis James Henrickson 1970-7-25 5081 Orange 3.5 miles NW of Huntington Beach growing along graded inner slope of East Garden Grove-Wintersburg Flood Control Channel near Bolsa Chica Salt Marsh. 2 Comment
  RSA599428  Hemizonia australis R. E. Riefner 1996-7-28 96 -152 Orange San Diego Creek, at Campus Drive. 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
  RSA750921  Hemizonia fasciculata A. C. Sanders, Fred M. Roberts 2008-7-3 35705 Orange Weir Canyon, along Weir Canyon Rd. 1.2 mi. SSE of Walnut Canyon Reservoir, below Upper Blind Canyon Rd. 212 Comment
  UCR1475  Hemizonia fasciculata B. L. Estes 1960-7-23 s.n. Orange South Coastal Plains Region, San Clemente, 5 ft. from pavement at corner of So. Calle Seville and West Ave. Victoria 30 Comment
  UCR209334  Hemizonia fasciculata Fred M. Roberts 2008-7-10 7064 Orange South Coast, Dana Point Headlands, CNLM Preserve, near Strands Road Gate, 0.8 km west-northwest of Marine Institute, Dana Point Harbor 65 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
  RSA704074  Hemizonia paniculata D. E. Bramlet, Fred Roberts 2003-5-8 3432 Orange Donna O'Neill Reserve. SE area of the reserve 305m west to Cristianitos Rd. and 762m south of the E-W access road. 101 Comment
  SEINET5014574  Hemizonia parryi Unknown 1933-9-29 2537 Orange Seal Beach 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
  RSA735027  Hesperocnide tenella Scott D. White, Justin M. Wood 2008-4-10 11847 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
  SD40663  Hesperocyparis forbesii Carl B. Wolf 1935-1-2 Orange Santa Ana Mountains, slopes of Sierra Peak, west of Claymine Canyon along road to peak 669 Comment
  SD40680  Hesperocyparis forbesii Carl B. Wolf 1935-1-2 Orange Santa Ana Mountains, slopes of Sierra Peak, west of Claymine Canyon along road to peak 669 Comment
  RSA771711  Hesperolinon micranthum Robt. Allen, Chris M. Barnhill, Dylan Hannon 2005-5-7 12514 Orange Coal Canyon, upper region above old mining area, southeast of utility road that runs on ridge between Coal and Gypsum Canyons. 525 Comment
  CAS-BOT-BC143750  Heteromeles arbutifolia Carl B. Wolf 1932-12-19 4430 -A Orange 1/2 mi. from Skyline Drive on firebreak road to Sierra Peak, Santa Ana Mts. Comment
  CAS-BOT-BC143754  Heteromeles arbutifolia Dr. Barton W. Evermann 1918-3-25 s.n. Orange San Clemente Comment
  RSA0072401  Heteromeles arbutifolia A. C. Sanders, Fred M. Roberts 2008-7-16 35840 Orange Lomas de Santiago, Dripping Springs off Limestone Canyon, c. 7.5 mi. ESE of Tustin. 391 Comment
  RSA699265  Heteromeles arbutifolia Unspecified s.n. Orange Maple Avenue School Comment
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Oct 7 2013
  UCR222859  Heteromeles arbutifolia T. B. Salvato 2010-10-27 5138 Orange South Coast, Dana Point Headlands, Hilltop Park, north of Scenic Dr. and west of Green Lantern St., overlooking Dana Point Harbor 84 Comment
  IRVC21773  Heterotheca grandiflora Fred M. Roberts 1984-11-27 1438 Orange Novia St. bridge over San Juan Creek, 0.6km S Bench Mark 133, San Juan Capistrano 31 Comment
  IRVC25170  Heterotheca grandiflora Fred M. Roberts, B. Fugle 1986-10-1 3148 Orange Laguna Hills; creek channel along Cabot Rd. ca. 1.0km N Pacific Park Pkwy. Southern Coastal 99 Comment
  RSA0074065  Heterotheca grandiflora Scott D. White, Michael Honer 2004-5-17 10383 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
  CAS-BOT-BC318903  Heterotheca grandiflora J. Ewan 1931-10-3 s.n. Orange 1/2 mile above La Vida Soda Springs, Carbon Canyon Comment
  RSA0075810  Heterotheca grandiflora Minor Warne 1934-5-12 s.n. Orange Newport Bluffs. Comment
  SD8916  Heterotheca grandiflora George R. Kleeberger Nov 1875 Orange Santa Ana Valley Comment
  SEINET2073666  Heterotheca grandiflora R. Beal 1980-5-6 Orange Dana Point, above Pacific Ocean, hard-packed sand on top of sand hill. Comment
  JEPS2412  Heterotheca sessiliflora subsp. echioides L. M. Booth 1932-7-29 1330 Orange Newport Bay Comment
  POM47593  Heterotheca sessiliflora subsp. echioides I. M. Johnston 1924-8-29 s.n. Orange 2.5 miles north of Balboa. Comment
  RSA689546  Heterotheca sessiliflora subsp. echioides R. E. Riefner 2000-8-8 20 -715 Orange NCCP North Ranch Policy Plan Area. NE property; E slope of upper Fremont Cyn.; S of Donaldson Ranch area and S of powerline / National Forest boundary. 454 Comment
  UCD150984  Hieracium argutum D. S. Park 2010-4-25 29 Orange Whiting Ranch Wilderness Park, along trail. Open, disturbed areas. 254 Comment
  CAS-BOT-BC207960  Hoffmannseggia glauca Margaret K. Bellue 1933-6-7 s.n. Orange Unspecified Comment
  POM348810  Hoita macrostachya Albert J. Perkins 1912-10-15 s.n Orange Swamp near head Newport Bay. Comment
  RSA7325  Hoita macrostachya E. R. Johnson 1933-7-6 5168 Orange 1/2 mile south of Mexican houses, Rancho Santa Ana 122 Comment
  IRVC19365  Hoita macrostachya R. L. Allen Jul 1977 s.n. Orange Santa Ana Mountains; [San Juan Canyon], Ortega Hwy, road side 111. Peninsular Ranges 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
  UC1294012  Holodiscus discolor E. K. Balls 1958-6-27 23284 Orange 5 mi se from Silverado (Gate), Silverado Canyon, Santa Ana Mountains Silverado Canyon; Santa Ana Mountains 1097 Comment
  UC592773  Holodiscus discolor P. C. Everett 1935-6-18 7221 Orange Santa Ana Mountains, Summit of Santiago Peak Summit of Santiago Peak; Santa Ana Mountains, Summit of Santiago Peak 1731 Comment
  UCD22756  Homalocladium platycladum A. T. Leiser 1974-9-26 s.n. Orange So. Coast Field Sta. Comment
  RSA597730  Hordeum depressum D. E. Bramlet 1996-4-20 2458 Orange Marsh adj. to Upper Newprot Bay, approx. 122m southeast of the end of University Dr. and 15.2m west of the Delhi channel., UTM 37 23 830mN, X 4 18 180m E 1 Comment
  RSA0040088  Hordeum depressum Sandra Leatherman 2014-3-18 2014 -2 Orange Santa Ana Mountains region: South Orange County; northeast of Antonio Parkway and Sendero Way; adjacent to the Chiquita Reclamation Plant access road. 76 Comment
  UCR142296  Hordeum intercedens D. E. Bramlet, Sandy Leatherman 1998-5-21 2626 Orange Slope adjacent to a tributary of Segunda Deshecha Canada, c. 610 m N of the exisitng access road (Telaga Valley Dr.) and 2.9 km N of Avenida Pico. c. 1.93 km west of Cristianitos Canyon and 640 m west of Wilson Camp Rd 201 Comment
  UCR150375  Hordeum intercedens D. E. Bramlet 1998-5-19 2620 Orange Coastal Plains & Basins/Los Angeles Basin region, San Juan Hills: 1.13 km west of La Pata Ave. and 1.22 km N of Prima Deshecha Canada. A ridgeline 213 m east of a small canyon 152 Comment
  UCR267436  Hordeum intercedens D. E. Bramlet 2001-5-15 3143 Orange Santa Ana Mtns. Foothills, upper watershed of Deep Canyon, 1300 ft. east of Krum Reservoir, c. 2 miles SE of San Juan Capistrano, 1200 ft. south of Avenida Placida, west of the Prima Deshecha landfill 201 Comment
  CDA32412  Hordeum jubatum R. L. Pope 1961-7-18 Orange Santa Ana Freeway. 0 Comment
  RSA651784  Hordeum leporinum Bob Edwards 1948-5-14 s.n. Orange Found on vacant lot in Orange. 59 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
  RSA542550  Hordeum murinum subsp. leporinum Fred M. Roberts 1988-3-4 3810 Orange Anaheim, along Atchison Topeka RR parallel to Vine St., south of Broadway St., UTM 3743900m N, 416300m E 50 Comment
  RSA55  Hordeum murinum subsp. leporinum J. T. Howell 1928-3-17 869 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  UCR207196  Hordeum murinum subsp. leporinum O. F. Clarke 2002-5-22 s.n. Orange South Coast, Least Tern Reserve, just north of the mouth of the Santa Ana River, Huntington Beach 4 Comment
  UCR99555  Hordeum murinum subsp. leporinum B. G. Pitzer 1996-4-30 2799 A Orange San Joaquin Hills, Crystal Cove State Park, south of City of Irvine on State Hwy 1 (Pacific Coast Hwy) 15 Comment
  UCSB48126  Hordeum vulgare Roberts, Fred 1981-4-11 Orange Highway 74: 5.2km E San Juan Capistrano, near San Juan Creek crossing 52 Comment
  POM305048  Horkelia cuneata subsp. puberula Henry J. Ramsey 1937-1-9 374 Orange San Juan Canyon 152 Comment
  RSA789353  Horkelia cuneata subsp. puberula Naomi S. Fraga, Duncan S. Bell 2009-5-11 2720 Orange Chiquita Trail 762 Comment
  UC582823  Horkelia cuneata subsp. puberula Philip A. Munz 1936-4-20 14606 Orange Laguna Beach Mt. Olympus 152 Comment
  RSA80334  Hydrocotyle umbellata F. W. Peirson 1924-10-19 5237 Orange Wintersberg Comment
  RSA747629  Hypericum canariense Fred M. Roberts 2008-5-8 6946 Orange Dana Point: Dana Point Headlands, CNLM Preserve near NE Gate, 0.5km W Marine Institute (Dana Point Harbor). 75 Comment
  UCSB52912  Hypochaeris radicata Roberts, Fred; Marsh, K. 1983-5-13 Orange Laguna Beach; Sycamore Hills, central ridge, 1.3 km. NE jct. El Toro and Laguna canyon Rds.; 5.6 km. ESE Signal Peak 155 Comment
  CAS-BOT-BC438782  Ipomoea cairica R. E. Riefner, Jr. 2012-11-27 12 -563 Orange City of Laguna Beach, South Crescent Beach, Circle Way near Cliff Drive. 3 Comment
  UCR188940  Ipomoea cairica Robert DeRuff 2006-1 567 Orange Newport Beach, Upper Newport Bay, Back Bay Drive, lower bluff between 23rd Street and Mariners Drive 5 Comment
  RSA799949  Isocoma menziesii D. M. Ray 2011-1-19 2 Orange South Coast: Santa Ana River: along right of way road just west of Least Tern Island. 0 Comment
  CDA8035  Isocoma menziesii var. vernonioides E. Dudley 1956-10-26 Orange Bryant Ranch, Irvine. 0 Comment
  IRVC28771  Isocoma menziesii var. vernonioides Elizabeth H. Hook, Caroline Tran 2006-2-4 2 Orange San Joaquin Marsh; NW bluff edge Southern Coastal 5 Comment
  POM147499  Isocoma menziesii var. vernonioides F. M. Reed 1928-4-27 5701 Orange Between Laguna and Newport. Comment
  RSA640310  Isocoma menziesii var. vernonioides L. C. Wheeler 1931-6-8 s.n. Orange Balboa Comment
  UCSB48038  Isocoma menziesii var. vernonioides Roberts, Jr., Fred 1981-9-26 Orange Irvine Ranch; Pacific Coast Highway, 0.9 km. SE El Moro School near mouth of Moro Cyn. 15 Comment
  CLARK-A1528-2387  Isomeris arborea John C. Roos 1937-2-23 1314 Orange Laguna Hills Comment
  RSA696234  Isomeris arborea Minor Warne 1934-5-10 s.n. Orange Fairview bluff near Talbert Comment
  UCR96319  Isomeris arborea B. G. Pitzer 1996-4-30 2796 Orange San Joaquin Hills, Crystal Cove State Park, south of City of Irvine on State Hwy 1 (Pacific Coast Hwy) 15 Comment
  CAS-BOT-BC334207  Iva hayesiana R. E. Riefner, Jr. 2013-8-30 13 -206 Orange City of Huntington Beach, N of Pacific Coast Hwy along the Santa Ana River Trial, W side Santa Ana River 7 Comment
  RSA594900  Jepsonia parryi Fred M. Roberts Jr. 1991-11-17 4824 Orange Lomas de Santiago: Foothill Ranch, north of El Toro Road, ca. 5.0km SSE Bolero Lookout. 274 Comment
  UC112094  Juglans E. B. Babcock 1907-9-9 Orange on ranch of E.S. Ware 1 mi n Garden Grove Comment
  CAS-BOT-BC402183  Juglans californica R. F. Thorne; E. W. Lathrop; W. Wisura 1977-7-8 49613 Orange Santa Ana Mountains: along Ortega Highway (74) about 2.5 miles above San Juan Fire Station. Comment
  SD138020  Juglans californica Carl B. Wolf 1939-11-29 42257 Orange Orange County Picnic Grounds Comment
  UCR234144  Juglans californica Dick Newell, Judy Booth 2012-3-22 231 Orange South Coastal Plain, Willow Canyon, Laurel Loop Trail, off Laguna Canyon Rd. 75 Comment
  RSA791495  Juglans californica Robert F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49613 Orange Santa Ana Mountains: along Ortega Highway (74) about 2.5 miles above San Juan Fire Station Comment
  CAS-BOT-BC229009  Juglans hindsii R. E. Riefner, Jr. 2011-9-10 11 -124 Orange Santa Ana Canyon, I-91 northbound, S side of freeway, located within 100 ft of the Riverside County line 127 Comment
  CAS-BOT-BC334501  Juglans hindsii R. E. Riefner, Jr. 2010-9-8 10 -121 Orange City of Laguna Beach, Laguna Canyon, ca 0.15 mi S of El Toro Rd. on E side of Laguna Canyon Rd. 75 Comment
  CAS-BOT-BC354339  Juglans hindsii R. E. Riefner, Jr. 2010-9-8 10 -124 Orange City of Laguna Beach, Laguna Canyon, ca 0.25 mi S of Sun Valley Dr. on E side of Laguna Canyon Rd. 65 Comment
  UCR61558  Juncus Jeri Hirshberg 1988-7-13 s.n. Orange Santa Ana Mtns., Lower Blind Canyon, 1-2 mi above Santiago Reservoir Comment
  CAS-BOT-BC110026  Juncus acutus L. R. Abrams 1917-6-23 6572 Orange Balboa. Comment
  RSA614279  Juncus acutus subsp. leopoldii L. C. Wheeler 1932-6-25 869 Orange Newport Bay: Inland arm of.. Sea level. Comment
  POM7126  Juncus balticus subsp. ater Phillip A. Munz, L. T. Street, G. Williams 1919-5-3 2654 Orange Santa Ana River Canyon. Comment
  UCR130133  Juncus bufonius Alice Eastwood, J. T. Howell 1937-4-24 3933 Orange South Coast, Dana Point 38 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
  UCR174228  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 396 Comment
  SD72862  Juncus oxymeris F. R. Fosberg 1931-6-21 S 5152 Orange Silverado Canyon, Santa Ana Mountains, edge of stream. Comment
  UCR193024  Juncus patens A. C. Sanders, Mitch Provance 2008-5-20 35399 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
  RSA603360  Juncus rugulosus Scott D. White 1997-6-12 5317 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
  UCR194996  Juncus textilis A. C. Sanders, Fred M. Roberts 2008-8-7 35994 Orange Peninsular Range; Santa Ana Mtns., lower Weir Canyon, at narrow gorge c. 0.6 mi. above mouth of cyn at Irvine Ranch gate 192 Comment
  UCR80024  Juncus textilis Scott D. White 1992-10-1 955 Orange City of Brea, immediately north of Carbon Canyon Road & east of Placentia Ave. c. 1 mi (airline) S-SE of Tonner Canyon. 183 Comment
  UC1601822  Juncus torreyi S. B. and W. F. Parish 1882-10-1 1593 Orange Orange Comment
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Jul 18 2010
  RSA21064  Juncus xiphioides Ramon Valverde 1938-8-4 9440 Orange Rancho Santa Ana, Santa Ana Canyon. 122 Comment
  UCR174211  Juncus xiphioides A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33046 Orange Peninsular Range; Santa Ana Mtns., San Juan Canyon, from Lower San Juan Picnic Area to c. 1 mile downstream, parallel to Hwy 74 and near Riverside Co. line 396 Comment
  RSA0042742  Juniperus rigida var. conferta R. E. Riefner Jr. 2012-10-21 12 -521 Orange City of Newport Beach, Corona del Mar, ca. 0.5 mi S. from the intersection of Poppy Ave./ Ocean Blvd. at Little Corona Beach. 12 Comment
  RSA552937  Keckiella antirrhinoides Fred M. Roberts Jr. 1989-5-9 4339 Orange Santa Ana Mts: Gypsum Canyon, west fork, 5.6 km WNW Sierra Peak, c.a. 1 km S Highway 91. 146 Comment
  UC1063326  Keckiella antirrhinoides A. Lewis Mar 1934 340 Orange Santa Ana Canyon; Corona Quad. 152 Comment
  RSA0051385  Keckiella antirrhinoides subsp. antirrhinoides Robert F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49601 Orange Santa Ana Mountains: rocky ravine tributary to San Juan Canyon, along Ortega Highway (74) about 2 miles above San Juan Fire Station. Comment
  NY786527  Keckiella antirrhinoides var. antirrhinoides F. R. Fosberg S 5082 Orange Lower Santiago Can. Comment
  UC1618100  Keckiella antirrhinoides var. antirrhinoides Donald G. Nelson 1935-7-6 259 Orange San Juan Canyon Comment
  CAS-BOT-BC235720  Keckiella cordifolia Carl B. Wolf 1932-7-2 3822 Orange Carbon Canyon, 1/8 mi. below La Vida Springs 213 Comment
  RSA659638  Keckiella cordifolia T. A. Daubert 1991-5-26 676 Orange Tucker Wildlife Sanctuary, Modjeska Canyon, turn around island Comment
  UC729869  Keckiella cordifolia Carl B. Wolf 1932-7-2 Orange .12 mi below La Vida Springs; Carbon Canyon 213 Comment
  UCR227631  Keckiella cordifolia Robt. L. Allen 2003-6-22 12288 Orange Santa Ana Mountains, west-facing flank of Santiago Peak, near the saddle between Santiago and Modjeska Peaks, along North Main Divide Road 1523 Comment
  RSA730997  Kickxia elatine Fred M. Roberts 2006-11-15 6460 Orange Santa Ana Cyn., 1.0 km ENE Imperial Hwy bridge, between La Palma Ave. and Santa Ana River near Big Springs St. 89 Comment
  RSA773502  Koeleria macrantha Fred M. Roberts 1999-5-14 5222 Orange Lomas de Santiago: Loma Ridge, Upper Limestone Canyon, 0.7 km NW Bolero Spring and 2.6 km SW Silverado School 502 Comment
  UCR195006  Lactuca serriola A. C. Sanders, Fred M. Roberts 2008-8-7 36001 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon at powerline crossing, 1.0 mi. (air) SSE of Walnut Canyon Reservoir 226 Comment
  RSA5937  Lactuca serriola C. B. Wolf 1932-7-7 3839 Orange Bryant Ranch, along drainage ditch on Bixby Ave.; 100 ft. W. of Hansen Rd.; 100 ft W of corner of NE 1/4 9 Comment
  IRVC27753  Lamarckia aurea Mark A. Elvin 2004-5-2 3427 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7km (air) NNW UC Irvine campus center. Southern Coastal 3 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
  SEINET11678604  Lamarckia aurea J. Bright, Wyman, C. 1933-1 8223 Orange around Laguna Beach Comment
  POM6017  Lasthenia californica L. R. Abrams 1903-4-18 3265 Orange Trabuco arroyo, near San Juan Capistrano. Comment
  IRVC553  Lasthenia californica R. Hobsin 1965-4-10 Orange Back Bay near end of bay. Newport Beach Comment
  RSA695491  Lasthenia coronaria Minor Warne 1934-04 s.n. Orange Laguna Canyon Forks Comment
  UC718548  Lasthenia glabrata subsp. coulteri Carl B. Wolf 1935-3-24 6295 Orange Comment
  UCR247510  Lasthenia glabrata subsp. glabrata R. E. Riefner Jr. 2013-3-10 13- 39 Orange city of lake Forest, along El Toro Road at Destry Road 211 Comment
  POM48548  Lasthenia gracilis F. M. Reed 1925-5-14 4968 Orange Aliso Canon. Comment
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May 1 2011
  UC2061417  Lasthenia gracilis Rachael L. Olliff Yang with Alice J. Olliff 2017-3-30 13 Orange UC Irvine Ecological Reserve, about 100 m West of Los Trancos Drive, along the trail. Comment
  UC484260  Lasthenia gracilis C. B. Wolf 1931-3-6 1847 Orange 1 mi above Trabuco Oaks Trabuco Canyon; Santa Ana Mts. 518 Comment
  RSA92917  Lasthenia gracilis F. W. Peirson 1924-5-31 4667 Orange 5 miles southeast of Laguna Beach. Comment
  RSA1702  Lathyrus vestitus subsp. alefeldii C. B. Wolf 1931-3-6 1835 Orange Trabuco canyon, 1/2 mile above Trabuco Oaks, west slope of Santa Ana Mountains. 457 Comment
  RSA3164  Lathyrus vestitus subsp. alefeldii C. B. Wolf 1932-3-8 2699 Orange Santiago Dam, W. base Santa Ana Mts. 305 Comment
  RSA535966  Lathyrus vestitus subsp. alefeldii Fred M. Roberts, Carol A. Roberts 1989-4-7 4265 Orange Aliso-Wood Canyons Regional Park: Upper Wood Canyon, ca. 0.5 km SW Moulton Peak. 102 Comment
  RSA90347  Lathyrus vestitus subsp. alefeldii F. W. Peirson 1925-4-11 5731 Orange slope above mill, in Silverado Canyon, Santa Ana Mountains 914 Comment
  IRVC15053  Lathyrus vestitus subsp. laetiflorus Gordon A. Marsh, K. G. Marsh 1977-5-28 Orange Selva Road. Laguna Niguel Comment
  JEPS55289  Lathyrus vestitus var. alefeldii Frank W. Peirson 1925-4-10 Orange Silverado Canyon 457 Comment
  UCR103214  Lathyrus vestitus var. vestitus Scott D. White 1997-2-19 4698 b Orange Santa Ana Mtns, above Modjeska Canyon; proposed water tank site 488 Comment
  UCR97637  Lathyrus vestitus var. vestitus George K. Helmkamp, E. A. Helmkamp 1997-4-24 1649 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, 1.6 mi. SE of Ortega Hwy (Calif. Hwy 74) on Rd. 7-S14 549 Comment
  UCSB47580  Lathyrus vestitus var. vestitus Roberts, Fred 1980-4-3 Orange San Juan Canyon, Hwy. 74, 0.4 km. NNE Lower San Juan Picnic Ground, Santa Ana Mtns. 420 Comment
  UCD106651  Lathyrus vestitus var. vestitus W. W. 1951-4-25 s.n. Orange Border of Riverside County, west side of Santa Anna Mts. 609 Comment
  JEPS68631  Lavatera assurgentiflora subsp. assurgentiflora Lawrence M. Booth 1932-5-26 1121 Orange Newport Bay Comment
  RSA0013587  Layia platyglossa D. E. Bramlet, Jim Harrison 2008-4-3 4151 Orange South Bee Cyn. Bowerman landfill site, 1.2km south of Bee Cyn access road, & 122n west of the active landfill. Comment
  RSA747636  Layia platyglossa Fred M. Roberts 2008-5-16 6983 Orange Dana Point: Dana Point Headlands, CNLM Preserve, north of Marguerita Drive, 0.5 km WNW Marine Institute, Dana Point Harbor. 75 Comment
  RSA17019  Layia platyglossa subsp. campestris Percy C. Everett 1935-4-15 6462 Orange 8/10 mile E of Atwood on S side of Santa Fe RR. 107 Comment
  CAS-BOT-BC534382  Lemna gibba Mr. M. F. Braolshane 1904-8-1 s.n. Orange Arch Beach Comment
  CDA25745  Leonurus sibiricus O. F. Clarke, A. C. Sanders 2008-2-19 s.n. Orange South Coast; Fullerton; weeds at California State University Fullerton Arboretum. Comment
  RSA1076  Lepechinia cardiophylla J. T. Howell 1927-6-26 225 Orange Claymine Canyon, near Sierra Peak 610 Comment
  RSA300978  Lepechinia cardiophylla D. C. Michener 1982-8-4 4167 Orange Formerly disturbed area above main divide road ca 1/4 mile southeast of Beeks Place [5.9 miles west of jct of Chase & Skyline in Corona, off of latter].West side of divide above Tin Mine Canyon. 915 Comment
  RSA649677  Lepechinia cardiophylla R. E. Riefner Jr. 2000-8-3 20 -706 Orange NCCP North Ranch Policy Plan Area. E of Main Divide Road and Windy Ridge cypress forest. 535 Comment
  SD152820  Lepechinia cardiophylla Steve Boyd, Kyle Boyd 1992-7-9 7653 Orange Northern Santa Ana Mountains, 3.5 miles south of junction of Main Divide and Skyline Roads. Comment
  UC909677  Lepechinia cardiophylla John Thomas Howell 1927-6-26 2606 Orange n Santa Ana Mountains, Claymine Canyon Claymine Canyon; Santa Ana Mountains, Claymine Canyon 609 Comment
  UCR203897  Lepechinia cardiophylla R. E. Riefner Jr. 2008-3-21 08- 59 Orange Santa Ana Mountains, Irvine Ranch Reserve, Fremont Canyon Conservation Easement, west Fremont Canyon, Windy Ridge south to west fork canyon 463 Comment
  UCR79479  Lepechinia cardiophylla Steve Boyd, K. A. Boyd 1992-7-9 7653 Orange Santa Ana Mtns, along the main crest of the range, north of Pleasants Peak and south of Oak Flat (aka Oat Flat), 3.5 mi. south of junction with Main Divide and Skyline Roads. Comment
  UCR237830  Lepidium Mark A. Elvin 2003-2-2 2263 Orange South Coast, San Joaquin Marsh, UCI campus SSE of intersection of Jamboree Blvd. and Campus Dr. 2 Comment
  UCD115328  Lepidium appelianum Ethelbert Johnson 1931-5-1 2197 Orange Santa Ana. Comment
  UCR207789  Lepidium lasiocarpum O. F. Clarke 2004-3-22 s.n. Orange Santa Ana River Canyon, Santa Ana River on the west side of Featherly Park 110 Comment
  CDA23129  Lepidium latifolium Mary H. White, Mark A. Elvin 2006-9-23 923064 Orange Southern Coastal; San Joaquin Marsh Freshwater Marsh, UC Natural Reserve; southwest edge along San Diego Creek, north of University Drive, east of Highway 73. Comment
  IRVC29818  Lepidium latifolium Mary H. White, Mark A. Elvin 2006-9-23 92306 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
  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-BC12787  Lepidium perfoliatum F. W. Bradshaw 1913-5-1 s.n. Orange Orange. Comment
  UCSB59357  Lepidium pinnatifidum Roberts, Jr., Fred 1987-7-8 Orange Irvine; San Diego Creek near San Diego Fwy. crossing, 3.2 km. N UC Irvine campus center; UTM 3726200m N, 422500m E 5 Comment
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Nov 17 2018
  RSA734768  Lepidium strictum A. C. Sanders, T. B. Salvato 2008-5-13 35331 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
  UC1543086  Lepidium virginicum Donald G. Nelson 1935-4-15 308 Orange between Costa Mesa and Newport Beach Comment
  UC1543107  Lepidium virginicum Donald G. Nelson 1935-3-23 180 Orange just s E. Orange Thorpe Ave. (e Fullerton); Fullerton Comment
  RSA776395  Lepidium virginicum var. robinsonii Orlando Mistretta, Christine Mistretta 2010-4-23 5072 Orange Vicinity of Diamond Bar. Hills just E of the State Hwy 57, N of Tonner Canyon Rd, along Southern California Edison transmission line corridor (Segment 8, map sheet 80 per TRTP survey 2010) 249 Comment
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Nov 17 2018
  OBI77796  Lepidospartum squamatum J. & B. Sample, B. Sample 1991-8-12 5591 Orange E of San Juan Capistrano on hwy 74 610 Comment
  RSA754068  Lepidospartum squamatum A. C. Sanders, Fred M. Roberts 2008-7-16 35864 Orange Lomas de Santiago, Santiago Creek wash at and above the confluence of Hangmans Tree Canyon 358 Comment
  RSA800662  Leptochloa fusca subsp. fascicularis Justin M. Wood 2010-9-29 2740 Orange Santa Ana Canyon: Santa Ana River, southwest of Green River Golf Course and north of Hwy 91 and Santa Ana River Trail. 128 Comment
  IRVC29821  Leptochloa uninervia Artie Thomas, Mark A. Elvin 2006-9-23 609233 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
  RSA17141  Leptosiphon floribundus C. B. Wolf 1936-6-17 7951 Orange Long Ortega Highway San Juan Canyon, 5/10 mi. e. of Orange Co. Line Riverside 366 Comment
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Aug 10 2014
  SD87568  Leptosiphon floribundus F. W. Peirson 1925-4-10 5741 Orange Silverado Canyon 609 Comment
  POM364667  Leptosiphon floribundus Albert J. Perkins 1920-5-18 s.n. Orange Frabuco Canon Comment
  UCSB47633  Leptosiphon floribundus subsp. glaber Roberts, Fred 1980-5-3 Orange Main Divide Truck Trail, 0.6 km. southeast Trabuco Peak on east side of road, Santa Ana Mtns. 1259 Comment
  POM49705  Leptosiphon liniflorus L. R. Abrams 1901-06 1797 Orange Trabuco Canyon Comment
  UC817468  Leymus triticoides Carl B. Wolf 1932-6-13 3726 Orange Fullerton; Malvern and Nicholas Aves. 53 Comment
  RSA0061170  Lilium humboldtii subsp. ocellatum Robt. Allen 2006-7-9 s.n. Orange Santa Ana Mountains region: Trabuco Canyon, just below Alder Spring. Slightly north of first stream crossing southwest of Holy Jim Fire Department. Comment
  UC1873111  Limonium R. E. Riefner Jr. 2006-10-19 06 -543 Orange Santa Ana Mountains, City of Rancho Santa Margarita, Robinson Ranch Road at Shadow Rock Road 419 Comment
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Jun 15 2011
  RSA723489  Limonium duriusculum R. E. Riefner 2006-11-12 6 -67 Orange City of Newport Beach, San Diego Creek near confluence with Newport Bay near SR73 overpass. 6 Comment
  RSA743510  Limonium perezii Fred M. Roberts 2008-4-9 6861 Orange Dana Point: Dana Point Headlands, CNLM Preserve near Outlook 2, 0.7 km W Marine Institute (Dana Point Harbor). 45 Comment
  RSA723499  Limonium ramosissimum R. E. Riefner 2005-10-5 5 -708 Orange City of Irvine, Bonita Creek, along La Salud St. near Milano Dr. 9 Comment
  RSA731656  Limonium ramosissimum Fred M. Roberts 2007-10-29 6623 Orange Niguel Hill: Laguna Niguel, Seaview Park, 1.3 km ENE Aliso Peak. 265 Comment
  RSA5277  Linanthus californicus B. D. Stark 1932-12-15 4453 Orange Rancho Santa Ana, slope above grove #4. 145 Comment
  UCR209333  Linanthus dianthiflorus Fred M. Roberts 2009-4-11 6887 Orange Lomas de Santiago, Loma Ridge, upper Dripping Springs Canyon, 0.9 km northeast of Bee Peak and 1.2 km west-northwest of Dripping Springs 448 Comment
  UC908693  Linanthus liniflorus J. T. Howell 1927-6-8 2458 Orange Rancho Santa Ana Rancho Santa Canyon 182 Comment
  UCR177690  Linanthus liniflorus Fred M. Roberts, D. E. Bramlet 2003-5-1 5693 Orange Coastal Plains & Basins; South Coastal Plain region, Rancho Mission Viejo: Donna O'Neill Land Conservancy, Cristianitos Cyn., 0.56 km SSW Gato Gate and 0.21 km west of Cristianitos Rd. 96 Comment
  UCR193066  Linanthus liniflorus A. C. Sanders, T. B. Salvato 2008-5-13 35337 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Canyon at mouth of Hangman Tree Canyon and lower Hangman Tree Cyn, c. 1/2 mile below Modjeska Canyon confluence 366 Comment
  RSA700539  Linaria canadensis var. texana Frances Battey s.n. Orange Orange Co. Park. 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
  RSA594875  Lindernia dubia Fred M. Roberts Jr., Wayne Ferren 1991-12-1 4830 Orange San Josquin Hills: Laguna Canyon, Upper Laguna Lake, 3.5 km N junction El Tprp Rd. , 4.9 km ENE Signal Peak; 113 Comment
  UCR253008  Liquidambar styraciflua Robert DeRuff 2013-8-12 581 Orange South Coast, Newport Back Bay, along storm drain from Eastbluff Dr. 3 Comment
  RSA701804  Lobelia dunnii var. serrata Fred M. Roberts 1999-7-22 5249 Orange Lomas de Santiago: Lomas Ridge, tributary to Limestone Canyon at Dripping Springs. Limestone Wilderness Park. 415 Comment
  CAS-BOT-BC342125  Logfia filaginoides Le Roy Abrams 1901-6-13 1795 Orange Trabuco Canon [Canyon] Comment
  UCD66217  Lolium multiflorum A. A. Beetle 1942-4-19 3104 Orange Rt. 101. San Clemente. Comment
  CAS-BOT-BC269106  Lolium perenne Ira L. Wiggins 1965-10-24 20290 Orange At corner of Yorba Linda and State College Boulevards, Fullerton Comment
  UCR16075  Lolium perenne subsp. multiflorum N. J. Moriarty 1973-5-26 730526- 2 Orange South Coast, Huntington Beach, vacant lot at the corner of Beach Blvd. and Memphis Avenue 15 Comment
  RSA734678  Lolium perenne subsp. perenne A. C. Sanders, T. B. Salvato 2008-5-13 35332 Orange Lomas de Santiago, Santiago Canyon at mouth of Hangman Tree Canyon and lower Hangman Tree Cyn, c. 1/2 mile below Modjeska Canyon confluence 366 Comment
  RSA542445  Lomatium dasycarpum subsp. dasycarpum Fred M. Roberts 1988-4-10 3913 Orange Lomas De Santiago: Loma Ridge, 1.0 kilometer N Bolero Lookout. 415 Comment
  RSA564109  Lomatium dasycarpum subsp. dasycarpum B. Pitzer, S. Hemstreet 1992-5-27 1956 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
  UCR217285  Lomatium lucidum Mark A. Elvin, Laura Soloro, Adam Sriro 2003-1-10 2218 Orange Peninsular Range; Santa Ana Mtns., c. 1.6 mi. west of Sierra Peak along road to powerlines, near Claymont Clay Mine 457 Comment
  CAS-BOT-BC240668  Lonicera interrupta A. M. White 1974-6-1 1408 Orange Ca. 20 mi. E. of Santa Ana, N. of Silverado Canyon Comment
  RSA697262  Lonicera subspicata Keith E. Hoffmaster 1934-4-22 s.n. Orange Santa Ana Mountains. Comment
  RSA455384  Lonicera subspicata var. denudata F. R. Fosberg 1931-6-21 S- 5136 Orange Silverado Canyon. Santa Anita Mts. Comment
  RSA663159  Lonicera subspicata var. denudata R. E. Riefner 2000-6-1 20 -458 Orange NCCP North Ranch Policy Plan Area. N of Irvine Lake and W of Black Star Cyn; W. of dirt access rd. 473 Comment
  RSA0006681  Lotus hamatus J. T. Howell 1927-6-8 56 Orange Botany Garden, Rancho Santa Ana. [original location] 152 Comment
  RSA689413  Lotus heermannii Scott D. White, Amanda Duchardt 2003-4-10 9006 Orange Santa Ana Mountain Foothills: Ridges & east-facing canyons above Trampas Canyon. 122 Comment
  UC1543225  Lotus heermannii Donald G. Nelson 1935-4-6 256 Orange San Juan Capistrano, below main highway, about 4 mi from summit San Juan Canyon 60 Comment
  UC454692  Lotus heermannii I. J. Condit 1908-7-21 Orange Los Alamitos Comment
  RSA679091  Lotus heermannii var. heermannii Fred M. Roberts 2003-7-24 5968 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
  UCR186428  Lotus purshianus Robert DeRuff 1986-6-12 105 Orange Southern Coast, Newport Beach, Newport Back Bay, flats at 23rd St. 1 Comment
  UCR192494  Lotus salsuginosus A. C. Sanders, Fred M. Roberts 2008-3-25 34562 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  UCR222416  Lotus salsuginosus D. E. Bramlet 2008-3-26 4118 Orange Peninsular Range; Santa Ana Mountains, Bee Canyon, Bowerman landfill site. 202 m south of the Bee Canyon access road and 151 m west of the active landfill entrance 295 Comment
  POM201833  Lotus scoparius L. M. Booth 1932-5-12 1025 Orange Newport Bay. Comment
  RSA3183  Lotus scoparius C. B. Wolf 1932-3-8 2680 Orange 1/2 mile N of Corona del Mar, Newport Bay. 8 Comment
  UCR131881  Lotus scoparius J. Mallory, V. McCoy 1995-7-3 6454- 124 Orange Santa Ana Mountains: Blind Canyon, c. 0.5 mi. NE of confluence w/ Santiago Canyon Wash; north of Irvine Lake. 300 Comment
  SFV11543  Lotus scoparius M. L. Vincent 1963-7-8 426 Orange Santa Ana Mountains 1 mile west of Highway 74, lower San Juan Campground. Comment
  UCR223427  Lotus scoparius subsp. scoparius Dick Newell, Don Millar 2011-2-15 059 Orange South Coast, San Joaquin Hills, Laguna Wilderness Park, along Stagecoach Trail 131 Comment
  IRVC27497  Lotus scoparius var. scoparius Mark A. Elvin 2004-5-2 3406 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7km (air) NNW UC Irvine campus center. Southern Coastal 3 Comment
  RSA725937  Lotus scoparius var. scoparius R. E. Riefner 2006-7-2 06 -277 Orange Costa Mesa, St. Route 73 at 55 Freeway interchange 20 Comment
  RSA739555  Lotus scoparius var. scoparius A. C. Sanders, Fred M. Roberts 2008-7-3 35668 Orange Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor 365 Comment
  UCR203987  Lotus scoparius var. scoparius Fred M. Roberts 2008-3-12 6729 Orange South Coast, Dana Point Headlands Center for Natural Lands Mgmt. Preserve, west side, c. 0.8 km west of Marine Institute, Dana Point Harbor 50 Comment
  POM50643  Lotus strigosus L. R. Abrams 1901-06 s.n. Orange Laguna Comment
  RSA659547  Lotus strigosus P. Shirokawa 1998-5-7 15 Orange Cleveland National Forest- Trabuco Ranger District, 0.3 miles from Ortega Highway (State Highway 74) on North Main Divide Road. 808 Comment
  UC864909  Lotus strigosus I. W. Clokey 1932-3-1 5328 Orange Laguna Beach Comment
  UCR168249  Lotus strigosus M. B. Dunkle 1933-3-5 3087 Orange Southern Coast, San Juan Canyon 305 Comment
  UCR193815  Lotus strigosus A. C. Sanders, Fred M. Roberts 2008-7-16 35878 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Creek wash at and above the confluence of Hangmans Tree Canyon 370 Comment
  IRVC22008  Lotus strigosus var. strigosus Fred M. Roberts, Gordon Marsh 1985-3-12 1502 Orange mesa west of Ave. Pico and north of El Camino Real, 3.2km SSE Coyote Bluff; 0.6km E Bench Mark 16 (sect. 32), San Clemente 37 Comment
  IRVC18811  Lotus strigosus var. strigosus Karlin G. Marsh 1983-4-11 s.n. Orange Laguna Beach: Sycamore Hills; dirt road surface of central ridge line. southern coastal Comment
  IRVC2225  Lotus strigosus var. strigosus E. P. Cowper 1964-4-10 Orange Corona del Mar Highschool. Newport Beach Comment
  RSA649845  Lotus wrangelianus D. E. Bramlet 2000-4-17 2985 Orange West of Blind Cyn. and North of Irvine Park. The site is 2 km west of Blind Canyon and 305m north of Irvine Park. This locality is 183m southwest of the MWD access road. 220 Comment
  UCR266379  Ludwigia D. E. Bramlet 2009-11-20 4426 Orange South Coast, San Diego Creek between Irvine and Newport Back Bay 8 Comment
  CDA1047  Ludwigia peploides D. G. Kelch 2006-12-9 6 .561 Orange Irvine. University Dr along tidal creek just E of I-73. Comment
  RSA717042  Ludwigia peploides Fred M. Roberts, Chris M. Barnhill 2005-9-27 6285 Orange San Juan Capistrano: San Juan Creek wash, east of La Novia Road bridge, 1.4km E Mission San Juan Capistrano. 27 Comment
  RSA355469  Ludwigia peploides subsp. peploides Harry Elmore 1927-9-14 5989 Orange San Juan Creek, San Juan Capistrano. Comment
  RSA413650  Lupinus albifrons var. eminens Albert J. Perkins 1923-6-24 s.n. Orange Silverado Canyon Comment
  RSA585490  Lupinus arboreus var. arboreus R. E. Riefner 1994-5-22 94 -384 Orange San Mateo Unit, San Onofre State Beach, west of Pico Avenue. Comment
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Nov 19 2013
  SD227815  Lupinus bicolor B. Pitzer 1997-4-15 3147 Orange Crystal Cove State Park, Along Moro Canyon Trail, from beginning to a point ca. 1.75 mi. up the canyon 49 Comment
  UCD107254  Lupinus bicolor C. L. Hitchcock 1966-3-15 24135 Orange 1/2 mile e. of Brea. Comment
  UCR240260  Lupinus bicolor D. E. Bramlet 2003-3-20 3350 Orange South Coast, Donna O'Neill Reserve; NE corner of the reserve, 150 m west of Cristianitos Rd. and 1.9 km north of the E-W access road 134 Comment
  RSA787678  Lupinus bicolor subsp. marginatus Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49713 Orange Northern Santa Ana Mountains: Sierra Peak 900 Comment
  IRVC22067  Lupinus bicolor subsp. microphyllus Fred M. Roberts 1983-3-16 917 Orange Laguna Beach: Sycamore Hills, central ridge, 1.1km NNE jct. El Toro and Laguna Canyon Rds.; 5.4km [ESE] Signal Peak. Southern Coastal 156 Comment
  IRVC2284  Lupinus bicolor subsp. umbellatus unknown 1965-4-13 HS 0423 Orange Laguna Canyon Southern Coastal Comment
  IRVC2301  Lupinus bicolor subsp. umbellatus John Schram 1965-5-1 HS 0420 Orange Corona Del Mar, Corona Highlands Southern Coastal Comment
  RSA543961  Lupinus concinnus subsp. concinnus Steve D. Boyd 1991-5-9 6192 Orange Crest of range at Oak Flat, SE of Sierra Peak, just West of Riverside County Line. 793 Comment
  RSA699738  Lupinus densiflorus Keith E. Hoffmaster 1935-4-19 s.n. Orange Santa Ana Mts. (Trabuco Rd.) Comment
  UC527213  Lupinus excubitus C. B. Wolf 1931-5-20 2056 Orange along Santa Fe R.R. 1 mi w Esperanza (Santa Ana Canyon); Santa Ana Canyon 106 Comment
  CAS-BOT-BC216676  Lupinus excubitus subsp. hallii Ramon Valverde 1939-5-1 3514 Orange Administrative building, grounds, Rancho Santa Ana Botanic Garden Comment
  CAS-BOT-BC216672  Lupinus excubitus subsp. hallii Alice Eastwood; John Thomas Howell 1937-4-24 3897 Orange Santa Ana Canyon Comment
  CAS-BOT-BC216693  Lupinus excubitus var. excubitus Carl B. Wolf 1930-3-25 1936 Orange Esperanza Siding, Santa Fe RR Comment
  CAS-BOT-BC215310  Lupinus excubitus var. excubitus C. B. Wolf 1931-5-20 2056 Orange Along Santa Fe RR, 1 mile W of Esperanza, Santa Ana Canyon 106 Comment
  IRVC2308  Lupinus excubitus var. hallii B. Mawdsley 1965-5-2 s.n. Orange Cleveland National Forest; Silverado [Canyon]. Santa Ana Mountains Comment
  RSA2098  Lupinus excubitus var. hallii B. D. Stark 1931-4-18 1939 Orange Mouth of Gypsum Canyon, Santa Ana Mts, Santa Ana Canyon opposite the Botanic Garden. 152 Comment
  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
  RSA699740  Lupinus latifolius subsp. parishii Keith E. Hoffmaster 1936-5-3 s.n. Orange Santa Ana Mts (Santiago Peak) Comment
  CAS-BOT-BC217748  Lupinus longifolius E. R. Johnson 1932-4-15 2956 Orange Rancho Santa Ana, 1 mi. NW of Roundtop (Section 16) 457 Comment
  RSA681889  Lupinus microcarpus var. microcarpus Scott D. White, Michael Honer 2003-6-19 9574 Orange Southwestern Santa Ana Mtn. Foothills: Rancho Mission Viejo. Steep mountain slopes south of San Juan Ck and west of Trampas Cyn. 91 Comment
  UC1595603  Lupinus microcarpus var. microcarpus Fred M. Roberts Jr. and Carol A. Roberts 1989-4-7 4262 Orange 0.6 km nw Moulton Peak; Aliso-Wood Canyon Regional Park, Upper Wood Canyon 131 Comment
  POM276293  Lupinus nanus subsp. menkerae Lyman D. Benson 1933-3-13 3089 a Orange caliente Wash, Greenhorn Range, Caliente Creek Watershed. 244 Comment
  RSA732123  Lupinus sparsiflorus A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34638 Orange Peninsular Range: Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 250 Comment
  SJSU10767  Lupinus sparsiflorus G. B. Youngberg 1956-3-27 186 Orange Irvine Park c. 8 mi E of Orange 259 Comment
  UC153540  Lupinus sparsiflorus LeRoy Abrams 1903-4-19 3277 Orange near San Juan; near San Juan Comment
  UC219306  Lupinus sparsiflorus P. A. Munz, R. D. Harwood 1920-4-25 3717 Orange Silverado Canyon; Santa Ana Mts., Silverado Canyon 548 Comment
  UCSB47590  Lupinus sparsiflorus Roberts, Jr., Fred 1980-5-3 Orange Santa Ana Mtns., San Juan Canyon, Rte. 74, 0.6 km. E San Juan Guard Station 238 Comment
  IRVC2335  Lupinus sparsiflorus subsp. sparsiflorus D. Frees 1965-3-13 s.n. Orange Santa Ana Mtns: Silverado Cyn. Peninsular Ranges Comment
  IRVC2341  Lupinus sparsiflorus subsp. sparsiflorus J. Morgan 1965-4-13 s.n. Orange Laguna Canyon. Southern Coastal Comment
  IRVC2348  Lupinus succulentus D. Van Gorden 1965-5-9 HS 0415 Orange Silverado Canyon. Santa Ana Mountains; Comment
  IRVC2349  Lupinus succulentus C. Thompson 1965-2-28 HS 0418 Orange Corona Del Mar: Corona Highlands Southern Coastal Comment
  RSA507484  Lupinus succulentus Jeri Hirshberg 1988-6-7 s.n. Orange Santa Ana Mountains, head of Gypsum Canyon 412 Comment
  RSA653185  Lupinus succulentus David Barrios 1991-5-8 33 Orange 1500 ft. Northwest of Fairmont Ave and Quail cir. 365 Comment
  RSA701206  Lupinus succulentus Keith E. Hoffmaster 1928-3-5 s.n. Orange Santa Ana Mountains Comment
  UCR100308  Lupinus succulentus B. G. Pitzer 1997-4-15 3146 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
  RSA788818  Lupinus truncatus Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49803 Orange Santa Ana Mountains: Trabuco Canyon Comment
  UCR228781  Lupinus truncatus Dick Newell, Don Millar 2011-5-3 135 Orange Coastal Plains, San Joaquin Hills, Laguna Canyon Wilderness Park, Willow Trail 160 Comment
  SEINET7062958  Lychnis coronaria A. G. Vestal 1947-6-12 s.n. Orange Santiago Creek Valley 0.4 mile below Silverado Canyon Fork. UTM Zone 11, 438682mE, 3733866mN. (WGS84/NAD83). 384 Comment
  CAS-BOT-BC233468  Lycium californicum Carl B. Wolf 1932-3-8 2686 Orange 1/2 mi. No. of Corona Del Mar, borders of Newport Bay 7 Comment
  LA209655  Lycium californicum B. R. Lower; 1954-4-25 sn Orange Laguna Beach Comment
  OBI9188  Lycium californicum Dieter H. Wilken, Timothy LeBlanc 1966-1-7 621 Orange Dana Point, N of San Juan Capistrano 3 Comment
  RSA357139  Lycium californicum Robert F. Thorne 1975-4-6 45576 Orange San Joaquin Marsh: Near Irvine and coast. Comment
  RSA0071939  Lycium californicum CNPS Accuracy Assessment Team 2014-7-22 6468 .1 Orange Crystal Cove State Park. Comment
  RSA700255  Lycopersicon esculentum Fred M. Roberts 2003-7-8 5959 Orange Coastal Plains and Basins; Los Angeles Basin region; Orange Park Acres, along Santiago Creek, 0.5 km E Cannon Road and 0.3 km n Santiago Canyon Road. 117 Comment
  RSA0014845  Lythrum californicum Scott D. White 1997-6-12 5315 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
  RSA0014850  Lythrum californicum Fred M. Roberts, Robert L. Allen, Chris Barnhill 2004-8-21 6109 Orange Caspers Wilderness Park, San Juan Cyn., Old San Juan Hot Springs, ca. 0.4km SW San Juan Ranger Station, north of SR 74. 214 Comment
  RSA0014835  Lythrum californicum Keith E. Hoffmaster 1927-6-26 452 Orange [Unspecified] Comment
  RSA0014843  Lythrum californicum F. W. Peirson 1924-5-31 4652 Orange Laguna Canyon, near Laguna Beach. 107 Comment
  RSA0014848  Lythrum californicum Albert J. Perkins 1912-09 s.n. Orange Roadside ditch, Santa Ana. Comment
  RSA39331  Lythrum hyssopifolia E. L. Paddock 1943-5-19 12748 Orange Low depression, Stewart Tank Farm, Union Oil co., 1 miles W of Brea Comment
  POM49378  Madia elegans subsp. elegans L. R. Abrams 1901-06 1817 Orange Santiago Peak Trail 915 Comment
  RSA0036648  Madia elegans subsp. elegans Robt. Allen, Chris Boever 2009-5-23 s.n. Orange Peninsular Ranges; Santa Ana Mountains region: Audubon Starr Ranch, west slope of Pruesker Peak, 431 air meters (0.27 air miles) northwest of View Rancho Survey Mark. 462 Comment
  UCR18628  Madia gracilis John C. Roos 1960-5-30 s.n. Orange Peninsular Ranges; Santa Ana Mtns, ridge at head of Hagador Canyon 1070 Comment
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Jan 7 2013
  CAS-BOT-BC206252  Malacothamnus fasciculatus C. B. Wolf 1931-7-25 1166 Orange Along the road at north side of the Pear Orchard, Rancho Santa Ana, Santa Ana Can. 121 Comment
  CAS-BOT-BC206256  Malacothamnus fasciculatus Le Roy Abrams 1901-6-13 1781 Orange Laguna Comment
  POM49079  Malacothamnus fasciculatus I. M. Johnston 1924-7-10 s.n. Orange 1/2 mi. S. of Aliso Canyon. Comment
  RSA433310  Malacothamnus fasciculatus M. B. Dunkle 1933-5-30 3581 Orange Santa Ana Canyon Comment
  RSA433313  Malacothamnus fasciculatus F. R. Fosberg 1931-6-21 S- 5101 Orange Silverado Canyon, Santa Ana Mts. Comment
  RSA564300  Malacothamnus fasciculatus Scott D. White 1992-9-29 851 Orange Vicinity of City of Brea, immediately N of Carbon Canyon Road and E of Placentia Avenue, +/- 1 mi (airline) S/SE of Tonner Canyon. 183 Comment
  RSA647942  Malacothamnus fasciculatus Mark Breidenbaugh, Caralisa Breidenbaugh 1992-5-1 79 Orange 1/2 mile south of Chino Hills State Park. 198 Comment
  UCR73130  Malacothamnus fasciculatus Scott D. White 1992-9-23 848 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
  UC1122014  Malacothamnus fasciculatus var. fasciculatus A. Lewis Apr 1934 398 Orange Tomato Spring Canyon 182 Comment
  CAS-BOT-BC175460  Malacothrix saxatilis A. C. Sanders 2008-4-29 35120 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago, western end of Loma Ridge on road to sheriff's training facility, c. 1.5 mi. SW of Santiago Reservoir 335 Comment
  CDA1074  Malacothrix saxatilis D. G. Kelch 2006-12-9 6 .54 Orange Along Newport Back Bay Dr. in side canyon. Comment
  UCR130492  Malacothrix saxatilis var. saxatilis R. E. Riefner Jr. 1999-5-22 99- 289 Orange South Coast, city of Dana Point, west of Pacific Coast Hwy, vicinity of Salt Creek Park and Ritz Carlton Hotel 15 Comment
  LA62900  Malosma laurina W. E. Pequegnat; 1937-9-6 sn Orange Santa Ana Mountains, Ortega Rd 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
  RSA0051388  Malosma laurina Robert F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49609 Orange Santa Ana Mountains: rocky ravine tributary to San Juan Canyon, along Ortega Highway (74) about 2 miles above San Juan Fire Station. Comment
  RSA42673  Malosma laurina H. P. Bracelin 1942-11-22 2369 Orange Southern & Lower California Comment
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Jun 13 2012
  UCR193467  Malva nicaeensis A. C. Sanders, T. B. Salvato 2008-5-13 35356 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
  RSA734957  Malva parviflora Keith E. Hoffmaster 1927-1-9 455 Orange Santa Ana Comment
  UC1607989  Malva parviflora Donald G. Nelson 1935-4-14 276 Orange near Pacific Electric Railway Station (Newport Beach); Newport Beach Comment
  RSA425040  Malva parviflora Jack Easton 1987-4-21 s.n. Orange Kain property, San Clemente, mouth of Trafalgar Canyon, just behind the beach. 30 Comment
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Feb 6 2009
  RSA737539  Marah macrocarpa Fred M. Roberts 2008-3-12 6723 Orange Dana Point: Dana Point Headlands CNLM Preserve, western side, c.a. 0.8 km W Marine Institute (Dana Point Harbor). 50 Comment
  RSA649326  Marrubium vulgare Diane Terell 1969-3-15 94 Orange On Bradford Avenue between Madison Avenue and Palm Drive in a deserted orange grove 46 Comment
  RSA791808  Marsilea drummondii R. E. Riefner Jr. 2007-9-30 7 -415 Orange City of Yorba Linda, Santa Ana Canyon, urban runoff tributary to Santa Ana River, La Palma Ave. at Via Lomas De Yorba East. 110 Comment
  RSA799622  Marsilea vestita Justin M. Wood 2011-4-12 3656 Orange South Coast: City of Costa Mesa. Fairview Park, just WNW of Marison Special Education Center. 24 Comment
  SD65524  Marsilea vestita Arthur Haupt 1935-4-12 Orange Costa Mesa Comment
  UC1543034  Marsilea vestita subsp. vestita Donald G. Nelson 1936-7-26 440 Orange mesa n of Newport Beach (Costa Mesa) Comment
  UC211179  Marsilea vestita subsp. vestita I. M. Johnston 1928-4-4 1979 Orange lakes in Laguna Canyon; San Joaquin Hills Comment
  RSA113265  Matthiola incana E. K. Balls 1955-4-4 20423 Orange Coastal Strand, west end of Newport Beach. 3 Comment
  RSA184088  Medicago lupulina I. L. Wiggins 1966-4-2 20578 Orange 1249 Luanne Avenue, Fullerton. Comment
  IRVC19532  Medicago minima R. L. Allen 1983-4-13 A 638 Orange Santa Ana; 3030 Camille St. at Arapaho. Southern Coastal Comment
  IRVC2374  Medicago polymorpha D. Van Gorden 1965-5-9 s.n. Orange Silverado Canyon. Santa Ana Mountains; Comment
  RSA732054  Medicago polymorpha A. C. Sanders, Fred M. Roberts 2008-3-25 34520 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills. 259 Comment
  UCD107895  Medicago polymorpha Ira L. Wiggins 1966-3-22 20539 Orange About 5 miles above Ranger Station, Cleveland National Forest, Silverado Canyon. Comment
  UCR230230  Medicago polymorpha Dick Newell, Don Millar 2011-3-15 079 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Agua Chinon Wash 219 Comment
  RSA746484  Medicago rigidula R. E. Riefner Jr. 2008-5-1 08 -73 Orange City of San Juan Capistrano, San Juan Creek area, ca. 0.2 mi W of intersection of Paseo Tirador and Calle Arroyo St. 31 Comment
  SD260949  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. Ridge top. 351 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
  RSA746480  Medicago truncatula R. E. Riefner Jr. 2007-4-1 07 -168 Orange City of Laguna Niguel, Laguna Niguel Regional Park, general vicinity of La Paz Rd. at Aliso Creek. 63 Comment
  UCR186145  Melaleuca citrina Robert DeRuff 1999-3-5 512 Orange Southern Coast, Newport Beach, Newport Back Bay, along Backbay Dr. between Big Canyon and Eastbluff Dr. 15 Comment
  CDA23128  Melaleuca nesophila R. E. Riefner Jr. 2007-6-9 07 -250 Orange City of San Juan Capistrano, south side of Antonio Parkway ca. 0.6 miles south of Covenant Hills Road. Comment
  UCR241060  Melia azedarach Dick Newell, Don Millar, Judy Booth 2012-12-15 312 Orange Peninsular Range; Santa Ana Mtns., Fremont Canyon at mouth, 1/5 mi. NE of Irvine Dam spillway 206 Comment
  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
  RSA58  Melica imperfecta J. T. Howell 1927-6-26 230 Orange Claymine Canon near Sierra Peak. [canyon] 244 Comment
  RSA703723  Melica imperfecta D. E. Bramlet, Fred M. Roberts 2003-3-13 3334 Orange Donna O'Neill Reserve. North East ridge of the reserve, 915m W of Cristianitos Rd. & 1.2km N of the E-W access road., (11S, 04 46 770E, 37 06 080N) 195 Comment
  UCR191418  Melica imperfecta A. C. Sanders, Fred M. Roberts 2008-4-8 34758 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
  UCR207526  Melica imperfecta O. F. Clarke 2006-5-6 s.n. Orange Peninsular Range; Santa Ana Mtns., Coal Canyon 305 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
  JEPS65541  Melilotus albus L. M. Booth 1933-10-18 Orange Newport Comment
  RSA730996  Melilotus albus Fred M. Roberts 2006-11-15 6470 Orange Santa Ana Cyn., Santa Ana River, north bank, 1.1 km ENE Imperial Hwy crossing. 85 Comment
  RSA735161  Melilotus albus A. C. Sanders, Fred M. Roberts 2008-5-6 35211 Orange Lomas de Santiago, lower Hicks Canyon near Irvine Ranch gate and road junction to cement plant 180 Comment
  UC537003  Melilotus albus Lawrence M. Booth 1932-7-4 1252 Orange Newport Lagoon Comment
  UCR100459  Melilotus albus B. G. Pitzer 1996-4-30 2766 Orange South Coast, Upper Newport Bay, Calif. Dept. Fish & Game Ecological Reserve, off (W of) Jamboree Road 6 Comment
  UCR210375  Melilotus albus T. B. Salvato, Billy Deane 2006-10-16 1933 Orange South Coast, Irvine, San Diego Creek flood control channel, between Michelson Drive and the 405 FWY 12 Comment
  RSA401  Melilotus albus J. T. Howell 1927-7-19 443 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  RSA652168  Melilotus albus Norman Willis 1948-2-8 s.n. Orange 2 miles E of Orange. 60 Comment
  SEINET12169950  Melilotus albus S. A. Thompson, Rawlins, J. E. 1988-8-27 5261 Orange Cleveland National Forest, 3.8 mi E of San Juan Hot Springs on CA 74 370 Comment
  IRVC20806  Melilotus indicus Fred M. Roberts 1982-5-22 644 Orange Dana Point; Junction of Selva and Stone Hill drives, 1.0km ESE Dana Hills High School; 1.7km SW Marco Forster Junior High School. Southern Coastal 40 Comment
  IRVC2422  Melilotus indicus Tony Price 1965-4-25 s.n. Orange Costa Mesa; Santa Isabel and Tustin. Southern Coastal Comment
  IRVC2431  Melilotus indicus C. Weir 1965-4-17 s.n. Orange Newport Beach; Balboa Island. Southern Coastal Comment
  UCR175055  Melilotus indicus Vanessa Lee 2005-4-24 s.n. Orange South Coast, Crystal Cove, Laguna Beach, above Pacific Coast Highway 61 Comment
  POM348196  Melilotus indicus M. B. Dunkle 1934-6-18 3985 Orange San Juan Canyon, Southern Coastal. 305 Comment
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Oct 3 2011
  RSA539392  Mentzelia dispersa Fred M. Roberts, Carol A. Roberts 1988-6-9 4071 Orange Santa Ana Mountains: Main Divide Truck Trail, Modjeska Peak, west slope, 0.5 km NNW summit. 1417 Comment
  RSA0054910  Mentzelia lindleyi Katherine Gorath 1932-4-25 s.n. Orange Cor. Chapman + Cambridge. Comment
  RSA594800  Mentzelia micrantha Fred M. Roberts, Sandy Leatherman, B. Leatherman 1994-4-24 4921 Orange Santa Ana Mountains: San Juan Canyon, south side of CA route 74, 1 kilometers NNW San Juan Survey Mark. 268 Comment
  UCR192111  Mentzelia micrantha A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35313 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along fire line/bulldozer cut, c. 1.5 mi. east of Walnut Cyn Reservoir 346 Comment
  UCR224406  Mentzelia micrantha Robt. L. Allen, Genevieve Walden 2008-6-26 s.n. Orange Santa Ana Mountains, along access road to Modjeska Peak, outside the sharp bend in the extreme north end of the road. Survey Point #47 1514 Comment
  RSA759203  Mentzelia micrantha 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
  CAS-BOT-BC435232  Mesembryanthemum crystallinum J. C. Roos 1965-6-16 s.n. Orange Dana Point. Comment
  RSA696449  Mesembryanthemum lineare Anonymous 1903-11-24 s.n. Orange [Unspecified] Comment
  CAS-BOT-BC435277  Mesembryanthemum nodiflorum LeRoy Abrams 1903-4-20 3280 Orange Near San Juan Comment
  IRVC17949  Mesembryanthemum nodiflorum A. B. McGee 1980-6-12 Orange San Joaquin Freshwater Marsh, south side; center of road. Irvine Comment
  POM156685  Mesembryanthemum nodiflorum L. R. Abrams 1903-4-20 3280 Orange Along the seashore, near San Juan. Comment
  RSA4819  Mesembryanthemum nodiflorum James Snow 1932-1 s.n. Orange Bryant Ranch: Near Long Beach. Plant # 8. Comment
  RSA588793  Micropus californicus Fred M. Roberts 1990-4-18 4567 Orange Rancho Mission Viejo: Chiquita Ridge, just west of Canada Chiquita, 2.5km SSE Median Rancho Survey Marker. 91 Comment
  CAS-BOT-BC348844  Microseris douglasii subsp. douglasii LeRoy Abrams 1903-4-18 3262 Orange Trabuco arroyo near Capistrano Comment
  UCR158147  Microseris douglasii subsp. douglasii Adrian Wolf 1998-4-25 160 Orange South Coast, San Joaquin Hills, west Bommer Canyon ridge, 1 km NW of Signal Peak, 3 km east of San Joaquin Reservoir 287 Comment
  UCR158153  Microseris douglasii subsp. douglasii Adrian Wolf 1998-4-24 166 Orange South Coast, San Joaquin Hills, Shady Canyon, upper section, 2.25 km ENE of Signal Peak, 3 km west of Laguna Lakes 277 Comment
  UCR158466  Microseris douglasii subsp. platycarpha Adrian Wolf 1998-4-20 110 Orange Santa Ana Mtns., lower Limestone Canyon near Irvine Lake, 3 km SE of Irvine Lake dam, north of Santiago Canyon Rd. 287 Comment
  UCR98773  Microseris douglasii subsp. platycarpha D. E. Bramlet 1995-4-29 2404 Orange Fairview Park, Costa Mesa. 366m north of intersection of Wilson and Canyon drive and 152 m west of the Canyon School 43 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
  RSA651495  Microseris douglasii subsp. platycarpha D. E. Bramlet 2000-4-12 2975 Orange Fremont Canyon. The site is 976m south of the existing access road on the north ridge of the canyon. The site is 1.2 km northeast of Santiago Creek. 287 Comment
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Feb 21 2007
  RSA751989  Microseris lindleyi Fred M. Roberts, Eliza Maher 2008-3-26 6796 Orange Dana Point: Dana Point Headlands, CNLM Preserve, near Strands Road Gate, 0.8km WNW Marine Institute, Dana Point Harbor. 65 Comment
  UCR192480  Microseris lindleyi A. C. Sanders, Fred M. Roberts 2008-3-25 34518 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  UCR98256  Microseris lindleyi Scott D. White 1997-3-28 4846 Orange Santa Ana Mountains, Above Modjeska Canyon, proposed water tank site. 488 Comment
  UCD122208  Mimulus aurantiacus Raymond A. Evans 1949-5-14 s.n. Orange Sea bluffs at Corona Del Mar. 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
  JEPS87335  Mimulus aurantiacus var. pubescens David M. Thompson 1992-5-16 1068 Orange 0.6 mi sw San Bernardino Co. line (along Carbon Canyon Road (Hwy 142)) 230 Comment
  POM8481  Mimulus aurantiacus var. pubescens P. A. Munz, R. D. Harwood 1920-4-24 3758 Orange Sierra [Freemont] Canyon 366 Comment
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Sep 17 2011
  RSA542494  Mimulus aurantiacus var. pubescens Fred M. Roberts, Carol A. Roberts 1988-5-12 3965 Orange Anaheim Hills: Upper Deer Canyon, 7.7 km W Sierra Peak. 268 Comment
  UC1281141  Mimulus aurantiacus var. puniceus H. E. McMinn 1949-6-9 5617 Orange about 3 mi e San Juan Capistrano (on Highway 74) Comment
  RSA749994  Mimulus brevipes A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35318 Orange Weir Canyon, along fire line/bulldozer cut, c. 1.5 mi. east of Walnut Cyn Reservoir 346 Comment
  RSA7634  Mimulus clevelandii Carl B. Wolf 1933-11 20009 Orange Trabuco Canyon, so wall, opposite the Trabuco truck trail. Comment
  RSA727  Mimulus floribundus Thomas Howell 1927-7-27 492 Orange Santa Ana River bottom. Comment
  UCR193504  Mimulus floribundus A. C. Sanders, T. B. Salvato 2008-5-13 35335 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Canyon at mouth of Hangman Tree Canyon and lower Hangman Tree Cyn, c. 1/2 mile below Modjeska Canyon confluence 366 Comment
  RSA0036645  Mimulus floribundus Robt. Allen, Richard Newell 2009-7-11 s.n. Orange Peninsular Ranges; Santa Ana Mountains regions: Upper Santiago Canyon, just past community of Modjeska Canyon, Fleming Ranch, East end of Modjeska Canyon Road. 621 Comment
  JEPS10479  Mimulus guttatus Lawrence M. Booth 1932-6-7 1167 Orange Newport Bay Comment
  RSA698953  Mimulus guttatus J. R. Bruff 1930-10 19 Orange Santa Ana River Bed. Comment
  UCR175448  Mimulus pilosus Mark A. Elvin 2005-9-2 4491 Orange Peninsular Ranges, Santa Ana Mtns: along San Juan Creek c. 1.0 km upstream from San Juan Hot Springs, off Ortega Hwy (74) near the bridge 259 Comment
  CSUSB1909  Mimulus puniceus Mike Simmons 1975-5-28 Orange Highway 5, 2 miles west of Laguna Canyon Road 60 Comment
  RSA759204  Minuartia douglasii var. douglasii 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
  RSA731992  Mirabilis laevis A. C. Sanders, L. Farley, F. M. Roberts, D. E. Bramlet 2008-4-1 34651 Orange Peninsular Range: Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 250 Comment
  RSA0026064  Mirabilis laevis Betty Smith 1932-4-22 s.n. Orange Peters Canyon. Comment
  RSA585058  Mirabilis laevis var. crassifolia D. Atwood 1993-3-27 17707 Orange Corona Del Mar State Park along Newport Coast Drive. 0 Comment
  RSA465233  Mirabilis laevis var. crassifolia Albert J. Perkins 1914-3-14 s.n. Orange Santa Ana; near Coward s Cove. Comment
  CAS-BOT-BC385102  Mirabilis linearis var. decipiens Grace Cole Fleischman 1955-9-6 s.n. Orange Vicinty of Anaheim [communicated by Grace Cole Fleischman, per label] Comment
  CHSC30534  Monanthochloe littoralis T. B. Devine 1980-4-2 626 Orange On Back Bay Dr. E. of Upper Newport Bay ca 2 mi. N. of jct. with Jamboree Rd. Comment
  IRVC28200  Monardella hypoleuca A. C. Sanders, Mark A. Elvin 2005-9-2 31609 Orange Upper Holy Jim Canyon, a major tributary of Trabuco Cyn, along trail in the switchbacks. Santa Ana Mountains 970 Comment
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Aug 13 2012
  PASA1142  Monardella hypoleuca Frank W. Peirson 1923-9-7 Orange Santiago Peak 1066 Comment
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Jan 7 2018
  RSA191948  Monardella hypoleuca Robert F. Thorne 1963-7-26 32858 Orange Tin Mine Canyon above Beek s Spring, Trabuco District, Cleveland National Forest. 732 Comment
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Aug 13 2012
  RSA765071  Monardella hypoleuca A. C. Sanders, Mark A. Elvin 2005-9-2 31607 Orange Upper Holy Jim Canyon, a major tributary of Trabuco Canyon, along the trail in the switchbacks 820 Comment
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Aug 13 2012
  CAS-BOT-BC249024  Monardella hypoleuca subsp. intermedia A. C. Sanders; Mark A. Elvin 2005-9-2 31613 Orange Santa Ana Mtns.: near head of Holy Jim Canyon, a major tributary of Trabuco Canyon, along the trail in the switchbacks, below the towers on Santiago Peak 998 Comment
  CAS-BOT-BC249028  Monardella hypoleuca subsp. intermedia A. C. Sanders; Fred M. Roberts 2008-7-3 35681 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor 415 Comment
  SD136814  Monardella hypoleuca subsp. intermedia Steve Boyd, Tim Ross 1994-9-14 8352 Orange San Mateo Canyon Wilderness Area of the Cleveland National Forest, Lucas Canyon just downstream of Lucas Canyon Trail crossing. 305 Comment
  UCR17859  Monardella hypoleuca subsp. intermedia A. C. Sanders 1976-3-6 00407 Orange Peninsular Range; Santa Ana Mtns., Black Star Canyon 549 Comment
  POM4047  Monardella lanceolata var. lanceolata L. R. Abrams 1901-7-13 1788 Orange San Joaquin Hills. Comment
  POM257044  Monardella lanceolata var. lanceolata W. Pequegnat 1940-6-15 s.n. Orange Santa Ana Mountains: Modjeska Flat. 1372 Comment
  IRVC27048  Monardella viminea Mark A. Elvin 2005-2-8 3989 Orange UCI Arboretum Southern Coastal 15 Comment
  IRVC26702  Moraea karroica Mark A. Elvin, J. Liou, J. Carpenter, J. Nguyen 2004-3-8 3168 Orange UCI Arboretum Southern Coastal 15 Comment
  IRVC26748  Moraea tricolor Mark A. Elvin, J. Liou, J. Carpenter, J. Nguyen 2004-3-8 3178 Orange UCI Arboretum Southern Coastal 15 Comment
  RSA67  Muhlenbergia asperifolia J. T. Howell 1927-7-19 446 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  UCD86558  Muhlenbergia asperifolia F. M. Reed 1927-9-19 5470 Orange Canal Bank, opposite Peralta Heights. 91 Comment
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May 1 2011
  RSA59  Muhlenbergia microsperma J. T. Howell 1927-6-5 37 Orange Rancho Santa Ana, near east boundary. 152 Comment
  RSA682753  Muilla maritima Scott D. White, Amanda Duchardt 2003-3-27 8847 Orange Canyon bottom and west facing slopes above Canada Gobernadora. 91 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-BC219358  Nama stenocarpa Munz; Street; Williams 1919-5-4 2681 Orange Laguna Beach Region. Laguna Canon [Canyon] Comment
  RSA562730  Narcissus tazetta Steve Boyd, Timothy S. Ross 1992-5-20 7466 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of the wilderness in Lucas Canyon along canyon floor from crossing of Lucas Canyon Trail., Upstream 1/4 mile to spur trail leading to old mining habitations in side canyon. 304 Comment
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Feb 4 2016
  CAS-BOT-BC259822  Nassella cernua LeRoy Abrams 1903-4-18 3269 Orange Trabuco Canon [Trabuco Canyon], Capistrano Comment
  CAS-BOT-BC259968  Nassella lepida Carl B. Wolf 1932-3-8 2682 Orange 0.5 mile N of Corona Del Mar, Borders of Newport Bay 7 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
  RSA743514  Nassella lepida Fred M. Roberts 2008-4-9 6865 Orange Dana Point: Dana Point Headlands, CNLM Preserve near Outlook 2, 0.7 km W Marine Institute (Dana Point Harbor). 52 Comment
  SEINET6854814  Nassella lepida Fred M. Reed 1929-7-10 s.n. Orange Laguna Beach. Comment
  CAS-BOT-BC260105  Nassella pulchra John Thomas Howell 1927-6-9 2467 Orange N side, Santa Ana Canon [Santa Ana Canyon] 152 Comment
  POM263720  Nassella pulchra E. W. Lathrop 1966-3-23 6105 Orange 4 miles northeast of Lake Irvine, Black Star Canyon, Cleveland National Forest, Trabuco District. Comment
  RSA542547  Nassella pulchra Fred M. Roberts 1988-2-9 3782 Orange Lomas De Santiago: Loma Ridge, 1.5km N Bee Survey Mark., UTM 373 3700m N, 435 200m E 385 Comment
  RSA743513  Nassella pulchra Fred M. Roberts 2008-4-9 6863 Orange Dana Point: Dana Point Headlands, CNLM Preserve near Outlook 2, 0.7 km W Marine Institute (Dana Point Harbor). 45 Comment
  RSA747596  Nassella pulchra Fred M. Roberts 2000-5-19 5329 Orange Lomas de Santiago: Loma Ridge, ridge west of Bee Peak above Bee Cyn. landfill, 0.2 km W Bee Peak. 500 Comment
  UCD87441  Nassella pulchra A. A. Beetle 1942-4-19 3103 Orange Rt. 101. 5 miles south of Laguna Beach. Comment
  UCD87664  Nassella pulchra F. M. Reed 1927-3-19 5474 Orange Laguna Beach. At Arch Beach. 15 Comment
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Nov 4 2017
  IRVC29781  Nasturtium officinale Mark A. Elvin, Dean Kelch 2006-12-9 5293 Orange Newport Backbay; Big Canyon, lower end. Southern Coastal 3 Comment
  RSA647951  Nasturtium officinale Ken Greby 1985-4-18 10 Orange N side of Laguna Canyon Rd., 1 km NE of El Toro Rd. 53 Comment
  RSA689535  Nasturtium officinale R. E. Riefner 2002-5-4 20 -97 Orange Upper Newport Bay, Jamboree Rd at Bayview Dr. 15 Comment
  POM201760  Nemacaulis denudata var. denudata L. M. Booth 1932-5-27 1132 Orange Newport Beach Comment
  UCR177440  Nemophila menziesii Scott D. White, Amanda Duchardt 2003-3-27 8865 Orange Peninsular Ranges/Santa Ana Mtns, Canyon bottom and W-facing slopes above Canada Gobernadora 183 Comment
  RSA588783  Nemophila menziesii var. integrifolia Fred M. Roberts, Nicole Orlik 1990-4-11 4715 Orange Santa Ana Mountains: East Fork Upper Long Canyon, along Main Divide Truck Trail, 4.4 kilometers SE Los Pinos Peak. 750 Comment
  CAS-BOT-BC478171  Nephrolepis cordifolia R. E. Jr. Riefner 2014-7-27 14 -261 Orange City of Long Beach, N of E 2nd Street and W of Marine Stadium Park, Alamitos Bay, along docks on Bay Shore Ave. between Monroe Ave. and E. Vista Street 6 Comment
  UC2041999  Nephrolepis cordifolia R. E. Riefner Jr. 2014-6-14 14 -171 Orange City of Newport Beach, Cliff Drive Park, along Cliff Dr. near Beacon St. Comment
  IRVC147  Nephrolepis cordifolia Polly Brecht 1965-5-7 HS 541 Orange Newport Beach; Cherry Tree Lane. Southern Coastal Comment
  RSA648655  Nerium oleander R. E. Riefner 2000-8-23 20 -730 Orange NCCP North Ranch Policy Plan Area. Fremont Canyon: N. of Santiago Creek & immediately S. of major stream fork 305 Comment
  RSA0020229  Nicotiana attenuata J. Vlahos 1933-1 s.n. Orange Orange Co. Park. Comment
  RSA733727  Nicotiana bigelovii Betty Niedergall 1932-5-3 s.n. Orange Hills of Orange County Park Comment
  LA45882  Nicotiana glauca W. E. Pequegnat; 1937-9-6 sn Orange Santa Ana Mountains, Ortega Rd Comment
  OBI28517  Nicotiana glauca R. L. Allen 1978-8-28 s.n. Orange Mission Viejo, near Saddleback Ranch Apts; Los Alisos Blvd Comment
  UC1286994  Nicotiana glauca C. L. Hitchcock 1966-3-15 24144 Orange 1.5 mi e Brea (Stearns Lease) Comment
  RSA651999  Nicotiana glauca Norman Willis 1948-2-8 s.n. Orange 2 miles E of Orange. 61 Comment
  SEINET7067536  Nicotiana quadrivalvis A. G. Vestal 1947-6-12 s.n. Orange Santa Ana River Wash northwest of Orange. Coordinate datum: NAD27. UTM Zone 11, 418667mE, 3739612mN. Comment
  UCR229211  Nicotiana quadrivalvis Dick Newell, Peter Wetzel 2011-6-28 199 Orange South Coast, San Joaquin Hills, Willow Canyon, Laguna Coastal Wilderness Park 89 Comment
  RSA0020234  Nicotiana quadrivalvis Gray s.n. Orange Orange Park Acres. Comment
  RSA323273  Nolina cismontana James C. Dice, Wier 1984-9-23 587 Orange Mission Viejo, 1.2 km NW of Lake Mission Viejo, along south edge of Vista del Lago, just west of Canaveras. 275 Comment
  RSA658138  Nolina cismontana R. E. Riefner 2000-7-6 20 -616 Orange NCCP North Ranch Policy Plan Area; NE property, along Nat l Forest Boundary, S of Claymore Mine Comment
  SD117588  Nolina cismontana James C. Dice, Harold A Wier 1984-9-23 587 Orange Mission Viejo, 1.2 kilometer northwest of Lake Mission Viejo, along south edge of Vista del Lago, just west of Canaveras Comment
  SD121704  Nolina cismontana James C. Dice, Thomas Oberbauer 1986-5-3 649 Orange Santa Ana Mountains, upper Borrego Canyon, along Santiago Canyon Road, 1.8 kilometer south of Modjeska Canyon Road Comment
  SD142045  Nolina cismontana James C. Dice, T. Oberbauer 1986-5-3 651 Orange Santa Ana Mts., 0.2 km W of Trabuco Cyn. 365 Comment
  UCR61531  Nolina cismontana James C. Dice 1986-5-31 s.n. Orange Mission Viejo, 1.2 km NW of Lake Mission Viejo, along SW edge of Vista delLago just west of the intersection w/ Canaveras 275 Comment
  UC421656  Nolina parryi John Thomas Howell 1927-7-24 2827 Orange Claymine Canyon n. Santa Ana Mts. 152 Comment
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Nov 26 2007
  RSA649937  Oenothera bistorta R. Soper 1971-3-19 24 Orange Upper Newport Bay. Along bayside Drive 1.3 mi. from S. jct with Jamboree Rd. el. ca. 4' 1 Comment
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Sep 15 2011
  CAS-BOT-BC171489  Oenothera californica Carl B. Wolf 1931-3-25 1935 Orange Along the Santa Fe R.R., 1 mile west of Atwood 91 Comment
  CAS-BOT-BC171487  Oenothera californica Helen D. Geis 1902-3-1 s.n. Orange Santa Ana sand dunes Comment
  RSA355662  Oenothera elata subsp. hirsutissima Claire Kibbe 1936-07 s.n. Orange Santa Ana Canyon. Comment
  UC1007125  Oenothera elata subsp. hookeri P. A. Munz 1938-6-23 15569 Orange 1 mi below Capistrano; San Juan Creek Comment
  UC729952  Oligomeris linifolia Carl B. Wolf 1932-6-28 3792 Orange Bryant Ranch Comment
  RSA5312  Opuntia B. D. Stark 1933-6-5 4503 Orange 2 mi S of summit of Skyline Drive, on road along ridge to santiago Peak. Santa Ana Mountains. 1067 Comment
  POM284080  Opuntia X occidentalis Lyman Benson 1955-10-17 15595 Orange Moulton Ranch just west of the summit east of Laguna Beach. 152 Comment
  POM285338  Opuntia X occidentalis Lyman Benson 1955-10-17 15599 Orange Moulton Ranch just west of the summit east of Laguna Beach. 152 Comment
  RSA696230  Opuntia X occidentalis Keith E. Hoffmaster 1927-6-5 s.n. Orange near Newport Comment
  JEPS66886  Opuntia littoralis L. M. Booth 1933-10-24 Orange Newport Comment
  POM317069  Opuntia littoralis David Walkington 1962-11-18 63 Orange West side of N Euclid Ave. north of Sunny Hills West Home, Fullerton. 76 Comment
  POM317735  Opuntia littoralis David Walkington 1963-5-23 175 Orange West side of N Euclid Ave. north of Sunny Hills West Home, Fullerton. 76 Comment
  CAS-BOT-BC56866  Opuntia oricola B. D. Stark 1933-1-21 4520 Orange Field redacted by CAS, contact the data manager for more information 60 Comment
  RSA6612  Opuntia prolifera B. D. Stark 1933-1-17 4514 Orange 5 miles north of Laguna Beach on road to Irvine. 152 Comment
  POM7995  Orthocarpus purpurascens var. pallidus C. F. Baker 1904-4-1 4132 Orange Anaheim. Comment
  CAS-BOT-BC355776  Osmadenia tenella Agnes M. Bowman 1899-6-1 s.n. Orange Santiago Cr. Comment
  CAS-BOT-BC355782  Osmadenia tenella H. F. Copeland 1938-6-28 s.n. Orange Hills back of Laguna Beach Comment
  JEPS38558  Osmadenia tenella H. L. Mason 1926-4-25 Orange Laguna Comment
  CAS-BOT-BC355772  Osmadenia tenella F. W. Peirson 1926-4-25 6643 Orange Upper part of Laguna Canyon Comment
  RSA684305  Oxalis albicans subsp. californica Fred M. Roberts 2003-3-13 5590 Orange Donna O'Neill Land Conservancy: Ridge west of Christianitos Canyon, 1,320m NW Sycamore Gate and 880m W Cristianitos Rd. 179 Comment
  UCR237933  Oxalis pes-caprae Mark A. Elvin 2003-2-2 2259 Orange South Coast, San Joaquin Marsh, UCI campus SSE of intersection of Jamboree Blvd. and Campus Dr. 2 Comment
  CLARK-A1528-3766  Oxytheca trilobata John C. Roos 1960-6-11 Orange Santa Ana Mountains 975 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
  IRVC26852  Paeonia californica D. E. Bramlet 2000-4-7 2945 Orange The site is 30m S of the SCE maintenance road and 1km E of Weir Canyon; 1.5km W of Blind Canyon. Southern Coastal 287 Comment
  RSA644978  Panicum acuminatum var. acuminatum R. E. Riefner 2000-2-19 20 -117 Orange Santa Ana Mtns. NCCP North Ranch Policy Plan Area. Fremont Canyon: N. of Santiago Creek and immediately N. of major stream fork. 305 Comment
  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
  SD234767  Parapholis incurva R. E. Riefner Jr. 2005-7-9 05 547 Orange South Coast: Huntington Beach, vicinity of Cynthia Dr. and Lavonne Ln. along the Santa Ana River. 7 Comment
  POM50185  Parietaria hespera var. californica Helen D. Gris 1902-1 509 Orange Hills of Orange Country. Comment
  UC729871  Parietaria hespera var. hespera Carl B. Wolf 1932-7-2 Orange .12 mi below La Vida Springs; Carbon Canyon 213 Comment
  UCR222662  Parietaria judaica R. E. Riefner Jr. 2006-5-21 06- 199 Orange South Coast, city of Huntington Beach, Beach Blvd. at MacDonald Ave. 8 Comment
  UCR281841  Parietaria judaica R. E. Riefner Jr. 2017-8-23 17- 430 Orange South Coast, city of Huntington Beach, Sunset Beach, along South Pacific Avenue, vicinity of 17th St. 4 Comment
  RSA0088873  Parthenium hysterophorus Jan West 2015-4-22 s.n. Orange Santa Ana, SE corner of E 17th St. and Lincoln Ave., 0.5 km east of I-5 on 17th. 49 Comment
  IRVC29791  Paspalum dilatatum Mark A. Elvin, Dean Kelch 2006-12-9 5317 Orange Irvine; San Diego Creek, edge of San Joaquin Marsh, beside University Dr., between Campus Dr. and Hwy 73. Southern Coastal 3 Comment
  POM301692  Paspalum dilatatum J. C. Roos 1942-6-20 990 Orange Anaheim, Telegraph Road, east of Los Angeles Comment
  POM1056  Paspalum distichum Daniel J. Crawford 1916-7-26 750 Orange Aliso Canyon Comment
  POM364360  Paspalum distichum Albert J. Perkins 1912-10-15 s.n. Orange Peatlands near head Newport Bay. Comment
  POM48017  Paspalum distichum I. M. Johnston 1924-8-29 s.n. Orange 1 mi. N of Los Alamitos. Comment
  RSA765876  Paspalum distichum R. E. Riefner Jr. 2005-7-9 05 -544 Orange City of Mission Viejo, Oso Creek, ca. 0.5 mi N of Paseo De Colinas on Camino Capistrano. 86 Comment
  RSA91899  Paspalum distichum F. W. Peirson 1924-8-29 5096 Orange Road from Artesia to Hungtington Beach, along ditch Comment
  RSA766072  Paspalum pubiflorum R. E. Riefner Jr. 2009-10-10 09 -222 Orange City of Yorba Linda, Santa Ana Canyon, N bank of Santa Ana River, E of Weir Canyon Rd., vicinity of La Palma Ave. and Mercado del Rio. 107 Comment
  OBI74913  Paspalum vaginatum R. E. Riefner, Jr. and K. Campbell, K. Campbell 2008-8-31 08 -267 Orange City of Irvine, tidal portion of San Diego crk, immediately E of Hwy 73 overpass 1 Comment
  OBI74937  Paspalum vaginatum Unknown 2008-7-29 08 -257 Orange City of Dana Point near Ritz-Carlton Hotel, Salt creek beach area 0 Comment
  RSA733137  Paspalum vaginatum R. E. Riefner 2008-1-13 8 -9 Orange City of Newport Beach, San Diego Creek near Hwy. 73 overpass, E of Jamboree Rd. 6 Comment
  SD248304  Paspalum vaginatum R. E. Riefner Jr. 2012-10-21 12 523 Orange City of Newport Beach, S. of Poppy Street / Ocean Blvd., creek at base of stairs. Little Corona Beach. 7 Comment
  UCR217452  Pectocarya linearis subsp. ferocula Mark A. Elvin 2003-1-26 2230 Orange South Coast, Irvine, UC Irvine Open Space Preserve, NE side, between core of UCI campus (E Peltason Dr.) and Hwy 73 69 Comment
  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
  UCR281514  Pectocarya penicillata Mitch Provance, Jeremiah George 2017-3-20 317- 109 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
  RSA787503  Pedicularis densiflora Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49711 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  RSA790703  Pedicularis densiflora L. C. Hull 1934-3-11 s.n. Orange Ortega Highway. Comment
  IRVC27881  Pelargonium A. C. Sanders, Mark A. Elvin 2003-10-12 27314 Orange Irvine; UCI Arboretum, UCI campus near intersection of Jamboree Blvd and Campus Dr. Southern Coastal 15 Comment
  CHSC60  Pellaea andromedifolia S. Westerberg 1938-3-24 Orange Santa Ana. Comment
  UC185251  Pellaea andromedifolia Mrs. Carlotta C. Hall 1913-5-27 9407 Orange Santiago Canyon Comment
  CAS-BOT-BC71395  Pellaea mucronata Miss. Mason 1892-1-1 s.n. Orange Orange Comment
  RSA698464  Pellaea mucronata Minor Warne 1934-4-28 s.n. Orange Ladd Canyon-Santa Ana Mts Comment
  IRVC3150  Pellaea mucronata var. mucronata E. P. Cowper Orange Trabuco Canyon. Santa Ana Mountains 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
  CHSC1848  Penstemon antirrhinoides S. Westerberg 1938-4-7 Orange San Juan canyon. Comment
  RSA761802  Penstemon grinnellii Robert Allen 2003-6-22 12271 Orange Northwest-facing flank of Santiago Peak, along North Main Divide Road. 1556 Comment
  UCR97636  Penstemon heterophyllus var. heterophyllus George K. Helmkamp, E. A. Helmkamp 1997-4-24 1647 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, 1.6 mi. SE of Ortega Hwy (Calif. Hwy 74) on Rd. 7-S14 549 Comment
  POM50434  Penstemon spectabilis L. R. Abrams 1901-6-15 1842 Orange Santiago Peak trail. Comment
  UCR241073  Penstemon spectabilis Dick Newell, Don Millar 2013-4-16 325 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago; lower Hangman's Tree Canyon at Santiago Canyon wash, 300 ft. west of Santiago Canyon Rd. 361 Comment
  RSA401835  Penstemon spectabilis Christopher Davidson 1977-5-18 5604 Orange Santa Ana Mts. Cleveland Nat. Forest. Pleasants Peak (on Orange-Riverside Co. line). 1220 Comment
  POM351577  Pentachaeta aurea Anstruther Davidson 1893-05 s.n. Orange Santiago Canyon Comment
  RSA702683  Pentachaeta aurea Scott D. White, Michael Honer 2004-5-17 10397 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
  RSA0060233  Pentagramma triangularis Fred M. Roberts, Laura Cohen 2000-3-24 5272 Orange Rancho Mission Viejo Land Conservancy: Tributary to Christanitos Cyn., Flagpole Meadow, upper shady Canyon Trail, about 1.6 NW Sycamore Gate. 170 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
  HSC3893  Peritoma arborea J. W. Johnson 1961-3-29 Orange Newport Beach, N slope overlooking upper Newport Bay Comment
  SEINET1004068  Persea cinerascens R. W. Scora 1997-1 5142 Orange Zentmyer Avocado Collection, Field 3, South Coast Field Station, Irvine 21 Comment
  UCR240105  Persicaria lapathifolia Dick Newell, Judy Booth 2012-9-3 284 Orange South Coast, Irvine, San Diego Creek under Campus Drive overcrossing 4 Comment
  POM201830  Petunia parviflora L. M. Booth 1932-12-16 1378 Orange Santa Ana River, near coast of Orange. Comment
  UCR193020  Phacelia A. C. Sanders, Mitch Provance 2008-5-20 35416 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago area, Santiago Creek Canyon, c. 3/4 mile below Modjeska Canyon confluence 355 Comment
  VVC263  Phacelia brachyloba P. J. MacKay 1990-5-25 s.n. Orange Peninsular Range, Hwy 74 near San Juan Hot Springs 198 Comment
  RSA0045162  Phacelia brachyloba Steve Smith 2005-04 24 Orange Caspers Wilderness Park, along bluffs of recovering burn area. Comment
  JEPS2193  Phacelia cicutaria var. hispida Alice King May 1907 Orange Santa Ana Canyon Comment
  RSA638969  Phacelia cicutaria var. hispida Valerie L. Soza, LeRoy Gross 1999-6-8 498 Orange Santa Ana Mountains: Santiago and Modjeska Canyons, above Tucker Wildlife Sanctuary, above the town of Modjeska 518 Comment
  SEINET4682011  Phacelia cryptantha W. Halvorson 1969-8-22 350 Orange 8 miles east of El Toro, California.; 0 61 Comment
  RSA0041602  Phacelia douglasii Anstruther Davidson 1917-1 s.n. Orange Laguna. Comment
  UCR192740  Phacelia grandiflora A. C. Sanders, Fred M. Roberts 2008-5-6 35220 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
  RSA738986  Phacelia hispida Minor Warne 1934-4-28 s.n. Orange Ladd Canyon-Santa Ana Mts. PR8. Comment
  RSA2112  Phacelia minor Carl B. Wolf 1931-3-6 1830 Orange Trabuco Canyon Road, 1.25 miles below Trabuco Oaks. 305 Comment
  UCR193499  Phacelia minor A. C. Sanders, T. B. Salvato 2008-5-13 35363 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
  RSA738987  Phacelia minor Aileen Adams 1932-5-9 s.n. Orange On a slope N Trabuca Comment
  UCR191337  Phacelia parryi A. C. Sanders, Fred M. Roberts 2008-4-8 34781 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, SSE of Santiago Reservoir on Harding Truck Trail at Dripping Springs Loop, above Limestone Canyon 495 Comment
  CAS-BOT-BC144975  Phacelia ramosissima var. austrolitoralis John Thomas Howell 1927-6-3 2417 Orange On sandy ridge, southern Puente Hills, Santa Ana Canyon 152 Comment
  POM3701  Phacelia ramosissima var. austrolitoralis D. L. Crawford s.n. Orange Arch Beach. Laguna Beach Region. Comment
  CAS-BOT-BC145004  Phacelia ramosissima var. latifolia Carl B. Wolf 1933-8-24 5389 Orange Santa Ana Mts. Summit of Santiago Pk. 1731 Comment
  RSA428287A  Phacelia ramosissima var. latifolia F. R. Fosberg 1931-6-21 S- 5135 Orange Silverado Canyon, Santa Ana Mts. Comment
  UC702949  Phacelia ramosissima var. latifolia John Thomas Howell 1927-6-3 2417 Orange Santa Ana Canyon Southern Puente Hills Comment
  SEINET3119073 Image available Phacelia tanacetifolia P. A. Munz 1934-3-26 13133 Orange Newport Beach 12 Comment
  UCR152757  Phalaris lemmonii D. E. Bramlet 2003-6-8 3461 Orange South Coast, Fairview Park in Costa Mesa, 152 m west of Canyon School and 396 m NW of intersection of Wilson & Canyon Dr. 24 Comment
  UC729882  Phalaris minor Carl B. Wolf 1932-7-7 3854 Orange Bixby Ave. 3/10 mi e Los Alamitos Blvd. (Bryant Ranch) 48 Comment
  RSA708230  Phalaris paradoxa Fred M. Roberts, Robert L. Allen, Chris Barnhill, Carol A. Roberts 2005-4-10 6163 Orange Costa Mesa: Fairview Park, west of north end of Canyon Drive, c.a. 0.2km WNW Marison Special Education Center (Canyon Sch. on topos). 24 Comment
  RSA706005  Phalaris paradoxa D. E. Bramlet 2003-6-8 3463 Orange Fairview Park, City of Costa Mesa. 152mW of the Canyon School & 396m NW of the intersection of Wilson and Cyn. Drive 24 Comment
  UCR234156  Phoradendron macrophyllum Dick Newell, Peter Wetzel 2012-1-3 223 Orange Peninsular Range; Santa Ana Mtns. Region, Peralta Hills, Villa Park, west of Chapman Ave. & Newport Blvd. 198 Comment
  RSA650  Phyla lanceolata J. T. Howell 1927-7-15 401 Orange Santa Ana River, Rancho Santa Ana [Botanic Garden] 152 Comment
  RSA683935  Phyllospadix scouleri E. Yale Dawson 1957-2-24 16174 Orange Just nOrth of Dana Point, Orange County Comment
  RSA683962  Phyllospadix torreyi N. C. Cooper 1942-11-8 890 Orange Laguna Beach. Comment
  POM1012  Phyllospadix torreyi D. L. Crawford 1916-7-28 s.n. Orange Laguna Beach Region Comment
  RSA5330  Pickeringia montana var. tomentosa B. D. Stark 1933-1-4 4484 Orange Ridge above Claymine Canyon. No. end of Santa Ana Mts. 305 Comment
  POM6223  Picris echioides D. L. Crawford 1915-09 505 Orange Huntington Beach. Comment
  NY34631  Pinus attenuata C. B. Wolf 1934-12-21 6260 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
  MACF029432  Pinus coulteri Robert L. Allen; Heather E. Wendel; Xanic J. Rondon; Laurie A. Clarke 2001-7-13 12242 Orange Santa Ana Range, San Juan Canyon, 3.7 road miles E of San Juan Guard Station following Ortega Hwy SR74. Lower San Juan Picnic Area, SW of region of main picnic area 443.7 Comment
  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
  RSA7645  Pinus coulteri C. B. Wolf 1933-12-24 5386 Orange Approximately the head of Highway Canyon on slope of Modjeska Peak, on the road to the Santa Ana Mts. Altitude 4000 ft 1220 Comment
  UC1134076  Pinus coulteri H. E. Norton 1931-3-3 33 Orange Santa Ana Mts. Corona Quadrangle Comment
  UCR231192  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
  UCSB47634  Pinus coulteri Roberts, Fred 1980-5-3 Orange On west side of road; Main Divide Truck Trail, 0.6 km. southeast of Trabuco Peak, Santa Ana Mtns. 1259 Comment
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Nov 8 2007
  SD236116  Pinus halepensis A. C. Sanders, Fred M. Roberts 2008-9-18 36082 Orange Peninsular Range; Santa Ana Mtns. Foothills: Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge 320 Comment
  HSC1549  Pinus quadrifolia Uknown 1957-8-21 Orange Laguna area Comment
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Nov 16 2016
  IRVC2820  Pinus radiata Linda Stilgenbauer 1965-4-27 s.n. Orange Corona Del Mar: 339 Milford Drive. Southern Coastal Comment
  UCR131522  Piperia elongata Robt. L. Allen, Christopher M. Barnhill 2004-1-10 12266 Orange Santa Ana Mtns., Trabuco Trail, c. 0.7 trail miles (1127 m) NW of Los Pinos Saddle, middle of top half of first switchback 1179 Comment
  RSA599183  Piptatherum miliaceum Scott D. White 1997-3-28 4826 Orange Above Modjeska Canyon, proposed water tank site 425 Comment
  UCSB22859  Piptatherum miliaceum Booth, Lawrence 1932-6-7 Orange Balboa Island, Newport Bay Comment
  RSA184119  Piptatherum miliaceum I. L. Wiggins 1965-10-24 20291 Orange At corner of Yorba Linda and State College Blvds., Fullerton Comment
  UCR210311  Pistacia A. C. Sanders, Fred M. Roberts, Jutta Burger 2009-10-21 37202 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Canyon near mouth of Limestone Cyn., near Agustine Staging Area at south foot of Blue Diamond Haul Rd. bridge over Santiago Canyon Rd. 253 Comment
  UCR99861  Pityrogramma triangularis Scott D. White 1996-12-20 4630 Orange Santa Ana Mountains, above Modjeska Canyon; proposed water tank site 488 Comment
  RSA715258  Plagiobothrys acanthocarpus R. E. Riefner 2006-4-12 6 -116 Orange Irvine, north foot of San Joaquin Hills, vicinity of Quail Hill, SSW of 405 Freeway and Shady Canyon Rd. 46 Comment
  RSA599652  Plagiobothrys acanthocarpus Fred M. Roberts 1995-4-21 4933 Orange Irvine: San Joaquin Hills, Quail Hill area near end of San Canyon Road, 2.5 km ENE French Hill. 52 Comment
  IRVC21599  Plagiobothrys canescens Fred M. Roberts 1984-4-24 1354 Orange Wagon Wheel Canyon, 3.0km NE Median Survey Mark; 1.0km NW Bench Mark 422, Wagon Wheel Regional Park 150 Comment
  UCR107858  Plagiobothrys collinus Scott D. White 1998-3-18 6211 Orange UCI, site of proposed research park, c. halfway between Berkeley Ave. and new freeway. 37 Comment
  RSA695817  Plagiobothrys collinus var. californicus L. C. Hull 1934-4-8 s.n. Orange Laguna Hills. Comment
  SDSU5387  Plagiobothrys collinus var. californicus R. M. Beauchamp 1968-2-17 771 Orange In field on west side of Trabuco Rd, 2 miles north of El Toro Rd. intersection. Comment
  RSA680531  Plagiobothrys nothofulvus Scott D. White 2003-3-21 8805 Orange Santa Ana Mountain Foothills: Rancho Mission Viejo. East-facing slopes above an unnamed tributary to San Juan Creek. 122 Comment
  SD27971  Plagiobothrys nothofulvus Carl B. Wolf 1932-3-8 2695 Orange West base of Santa Ana Mountains 305 Comment
  UCSB47617  Plagiobothrys nothofulvus Roberts, Fred 1980-5-3 Orange Santa Ana Mtns.: 0.3 km. NNW Blue Jay Campground 1020 Comment
  UC2030079  Plantago coronopus Valerie Soza, K. Clark, LeRoy Gross, Will Miller, Fred M. Roberts, G. D. Wallace 2001-4-4 1121 a Orange Anaheim Bay: Seal Beach U. S. Naval Weapons Station, southwestern edge of Seal Beach National Wildlife Refuge. Comment
  HSC16874  Plantago erecta S. M. Clapp 1966-4-8 43 Orange 4 mi. into Black Star Canyon 183 Comment
  JEPS6394  Plantago erecta Lawrence M. Booth 1932-5-18 1055 Orange Newport Bay Comment
  UCR5210  Plantago erecta Barbara T. Gittins, O. F. Clarke 1966-3-19 893 Orange Pacific slope, Irvine Ranch, east of University of California Irvine campus, Newport Beach 91 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
  POM260478  Plantago indica Ella Carter 1941-08 1 Orange Near fish canneries, not far from 29th str, Newport Beach. 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
  UCR102035  Plantago major B. G. Pitzer 1997-4-15 3151 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
  UCR174191  Plantago major A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33026 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
  RSA412578  Plantago major Albert J. Perkins 1920-08 s.n. Orange Santa Ana. [Fair Raven Ave.?] Comment
  RSA401708B  Platanus racemosa Albert J. Perkins 1915-04 s.n. Orange Santa Ana, Orange County Park. Comment
  UCR193300  Platanus racemosa A. C. Sanders, Fred M. Roberts 2008-6-17 35471 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Agustine staging area near Limestone Canyon Rd. gate at Santiago Cyn Rd. 260 Comment
  SEINET7779659  Platanus racemosa Unknown 1966-8-22 2390 Orange O'Neill State Park, about 20 miles southeast of Anaheim Comment
  RSA722429  Platystemon californicus Stephen Bruff s.n. Orange Lemon Heights. Comment
  RSA0025114  Plecostachys serpyllifolia R. E. Riefner Jr. 2008-7-9 08 -220 Orange City of Laguna Beach, bluff area W. of West St. and Pacific Coast Highway. 5 Comment
  SD218283  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. Comment
  CDA34944  Plecostachys serpyllifolia R. E. Riefner Jr. 2007-3-18 07 -153 Orange City of Newport Beach, Dover Beach, vicinity of Morning Star Lane and Polaris Drive. Comment
  RSA790115  Plecostachys serpyllifolia R. E. Riefner Jr. 2011-7-7 11 -88 Orange City of Dana Point, S. of Mussel Cove, N. of Salt Creek Beach. 5 Comment
  RSA232234  Pluchea odorata James Henrickson 1970-7-24 4986 Orange 2 miles NW of Huntington Beach around small freshwater industrial pond at eastern margin of Bolsa Chica Salt Marsh along Huntington Beach Mesa. 0 Comment
  SBBG63434  Pluchea odorata var. odorata M. N. Ackley -Oct-1928 1189 Orange Huntington Beach 8 Comment
  LA203865  Pluchea sericea J. A. Ewan; 1932-7-9 7488 Orange Santa Ana River, 4 mi. below Rincon Comment
  RSA472126  Pluchea sericea Albert J. Perkins 1920-6-12 s.n. Orange Near Serra. Comment
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Nov 1 2013
  UCR52602  Pluchea sericea Jeri Hirshberg 1988-6-7 s.n. Orange Santa Ana Mountains, Santa Ana Mountains 275 Comment
  RSA731925  Poa annua Fred M. Roberts, Sandy Leatherman 2007-11-27 6685 Orange Yorba Linda: drainage channel on east side of Amberdale Dr. ca. 0.3 km S Fairmont Blvd. 118 Comment
  RSA542546  Poa secunda Fred M. Roberts 1988-2-18 3804 Orange Lomas de Santiago: Ridge west of Irvine Lake, 1.0 km NW Santiago Dam spillway 244 Comment
  RSA680732  Poa secunda Scott D. White 2003-3-21 8823 Orange Santa Ana Mountain Foothills: Rancho Mission Viejo. East-facing slopes above an unnamed tributary to San Juan Creek. 122 Comment
  UCR170301  Poa secunda C. W. Sexton 1973-3-29 s.n. Orange South Coast, Newport Beach; Upper Newport Bay, hillside beside Back Bay Drive 15 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
  RSA708363  Poa secunda subsp. secunda Fred M. Roberts, Robert L. Allen, Chris Barnhill, Nancy Hatfield 2005-5-30 6233 Orange west slope of Modjeska Peak, Harding Canyon watershed, Main Divide Road, 0.46km W summit. 1670 Comment
  UCR209369  Poa secunda subsp. secunda Fred M. Roberts, Linda Farley 2008-3-28 6827 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
  UCSB57140  Poa secunda subsp. secunda Marsh, G.; Marsh, K. 1978-5-20 Orange Santa Ana Mts., NE portion of Coal Canyon 335 Comment
  IRVC28203  Polygala cornuta subsp. fishiae A. C. Sanders, Mark A. Elvin 2005-9-2 31611 Orange upper Holy Jim Canyon, a major tributary of Trabuco Canyon, along the trail in the switchbacks Santa Ana Mtns. 970 Comment
  UC1608266  Polygala cornuta var. fishiae Steve Boyd and Tim Ross 1992-5-20 7478 Orange w edge of wilderness Southern Santa Ana Mountains, San Mateo Canyon Wilderness Ar (along foot trail upstream from end of old roadgrade to upper homestead (corrugated steel building), along stream) 350 Comment
  RSA0051242  Polygonum aviculare Keith E. Hoffmaster 1934-1 491 Orange Santa Ana. Comment
  RSA0054921  Polygonum aviculare Keith E. Hoffmaster 1926-12-18 490 Orange Santa Ana. Comment
  JEPS51305  Polygonum aviculare subsp. aviculare Lawrence M. Booth 1932-7-4 1254 Orange Newport Bay Comment
  CAS-BOT-BC414042  Polygonum aviculare subsp. aviculare Ira L. Wiggins 1965-11-7 20364 Orange Vacant lot on west side of State College Boulevard near Troy High School, Fullerton Comment
  RSA731907  Polygonum lapathifolium Fred M. Roberts, Sandy Leatherman 2007-11-27 6672 Orange Yorba Linda: Santa Ana Canyon, Santa Ana River wash, S of E La Palma Road near Via Lomas de Yorba Linda, about 0.6 km W Gypsum Cyn. bridge. 113 Comment
  RSA731931  Polygonum lapathifolium Fred M. Roberts, Sandy Leatherman 2007-11-27 6679 Orange Yorba Linda: drainage channel on east side of Amberdale Dr. c.a. 0.3km S Fairmont Blvd. 118 Comment
  UC536913  Polygonum lapathifolium Lawrence M. Booth 1932-7-30 1342 Orange Santa Ana River Comment
  UCR193844  Polygonum lapathifolium A. C. Sanders, Fred M. Roberts 2008-7-16 35872 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Creek wash at and above the confluence of Hangmans Tree Canyon 370 Comment
  RSA124714  Polypodium californicum E. K. Balls, Percy C. Everett 1957-11-25 22837 Orange Trabuco Canyon 640 Comment
  RSA264148  Polypodium californicum C. W. Tilforth 1977-3-6 1255 Orange Small canyon west of Gypsum Canyon, south side of Santa Ana River, Santa Ana Canyon 152 Comment
  RSA85017  Polypodium californicum F. W. Peirson 1925-4-11 5729 Orange slope above mill, in Silverado Canyon, Santa Ana Mountains 914 Comment
  UCR99868  Polypodium californicum Scott D. White 1996-12-20 4629 Orange Santa Ana Mountains, above Modjeska Canyon; proposed water tank site 488 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
  IRVC21428  Polypodium californicum A. S. Boughey 1969-3-18 s.n. Orange Ortega Highway; 2mi E of San Juan Guard Station. Southern Coastal Comment
  UCR208342  Polypogon australis O. F. Clarke 2004-4-5 s.n. Orange South Coast, Huntington Beach State Park, near east bathroom 4 Comment
  RSA0058185  Polypogon monspeliensis Fred M. Roberts 2014-4-21 7871 Orange South Coast: San Joaquin Hills: Upper Laguna Lake 1 (upper Laguna Lake), north basin. 113 Comment
  RSA697712  Polypogon monspeliensis J. Russell Bruff 1930-10-19 s.n. Orange Santa Ana River bed. Comment
  SDSU2787  Polypogon monspeliensis Thomas A. Zink 1971-4-1 Orange growing in a shallow roadside ditch along Back Bay Rd. about 2.5 miles west of Jamboree Rd., at the bottom of a steep cliff. 5 Comment
  UCR192978  Polypogon monspeliensis A. C. Sanders, Fred M. Roberts 2008-6-17 35466 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Agustine staging area near Limestone Canyon Rd. gate at Santiago Cyn Rd. 260 Comment
  RSA91997  Polypogon monspeliensis F. W. Peirson 1924-5-31 4649 Orange Laguna Canyon near Laguna Beach. 107 Comment
  POM48083B  Polystichum imbricans subsp. curtum P. A. Munz 1923-9-7 7754 Orange Santa Ana Mountains 1371 Comment
  IRVC28638  Populus balsamifera subsp. trichocarpa Mark A. Elvin, A. C. Sanders 2005-9-2 4493 Orange Mouth of Lion Cyn, just up stream from Lower San Juan Campground. Santa Ana Mtns 457 Comment
  UCR119292  Populus balsamifera subsp. trichocarpa R. E. Riefner Jr. 2000-3-26 20- 151 Orange Peninsular Range, Santa Ana Mountains: North Ranch Policy Plan Area, Fremont Canyon, north of major stream fork along west channel drainage 335 Comment
  RSA581439  Populus trichocarpa Fred M. Roberts Jr., Gordon Marsh 1989-5-12 4358 Orange Santiago Canyon, Flemming Regional Park, just E of Modjeska at end of paved road, ca. 3.0 km WSW Laurel Springs. 436 Comment
  SD144030  Porophyllum gracile Scott D. White 1997-3-28 4841 Orange Santa Ana Mountains, above Modjeska Canyon. 424 Comment
  SD152924  Porophyllum gracile Steve Boyd, Tim Ross 1992-5-19 7447 Orange Southern Santa Ana Mountains, western edge of the wilderness in Aliso Canyon at the confluence with Lucas Canyon. 274 Comment
  UCR98272  Porophyllum gracile Scott D. White 1997-3-28 4841 Orange Santa Ana Mountains, Above Modjeska Canyon, proposed water tank site. 488 Comment
  CAS-BOT-BC445243  Portulaca oleracea Ira L. Wiggins 1965-11-3 20313 Orange East side of California State College campus, between State College Blvd and Placentia Avenue, Fullerton. Comment
  CAS-BOT-BC452122  Potamogeton crispus John Thomas Howell 1928-9-6 4079 A Orange Santa Ana River bottom, Santa Ana Canon [Canyon] 152 Comment
  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
  RSA542401  Prunus ilicifolia Fred M. Roberts Jr. 1986-11-5 3209 Orange Main Divide Truck Trail, 1.8 km WNW Pleasants Peak. 1130 Comment
  RSA701207  Prunus ilicifolia Keith E. Hoffmaster 1934-4-22 s.n. Orange Santa Ana Mountains Comment
  CAS-BOT-BC356379  Pseudognaphalium beneolens John Thomas Howell 1927-7-16 2782 Orange Hills on north side of Santa Ana Canon [Canyon] 152 Comment
  POM358761  Pseudognaphalium biolettii M. B. Dunkle 1933-4-9 3282 Orange Dana Point. Comment
  UCSB47974  Pseudognaphalium biolettii Roberts, Jr., Fred 1980-2-17 Orange North of Dana Strand road on the bluff west of Dana Marina, Dana Point 56 Comment
  UCSB47584  Pseudognaphalium californicum Roberts, Jr., Fred 1980-4-3 Orange Along Highway 74, 0.2 km. SW of Orange-Riverside Co. line, 0.4 km. NNE Lower San Juan Picnic Ground 420 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
  SD263581  Pseudognaphalium leucocephalum Jim Riley 2013-10-15 122 Orange San Clemente area; 0.56 miles ESE intersection Avenida Pico and Camino La Pedriza; just N San Diego County line 68 Comment
  UC2027329  Pseudognaphalium leucocephalum Robert Lee Allen 2012-8-11 Orange Santa Ana Mts, Caspers Wilderness Park, Bell Canyon. Comment
  RSA722094  Pseudognaphalium leucocephalum R. E. Riefner 2007-2-13 07 -55 Orange City of San Juan Capistrano, vicinity of La Novia Ave. and San Juan Creek. 31 Comment
  CAS-BOT-BC356984  Pseudognaphalium luteoalbum Scott D. White; Brian Leatherman 1997-6-12 5313 Orange Santa Ana Mtn. foothills. East of San Juan Capistrano: San Juan Creek between Hwy 74 bridge and Mission Vieja site, i.e., ca. 2 to 4 mi E of I-15 / Hwy 74 jtn. 75 Comment
  UCR240071  Pseudognaphalium ramosissimum Dick Newell, Judy Booth 2012-8-12 283 Orange South Coast, Newport Beach on Back Bay Drive, 0.6 mi north of Big Canyon parking lot 3 Comment
  JEPS20429  Pseudognaphalium stramineum L. M. Booth 1932-7-19 1275 Orange Bolsa Chica Comment
  MACF019844  Pseudotsuga macrocarpa C. T. O'Dowd 1975-5-21 3 Orange Santiago Canyon Road, Cleveland National Forest 731 Comment
  CAS-BOT-BC361708  Psilocarphus brevissimus var. brevissimus D. E. Bramlet 2004-3-26 3543 Orange South Coast: Fairview Park in Costa Mesa, 183 m west of Canyon School and 366 m NW of intersection of Wilson & Canyon Dr. 24 Comment
  RSA263691  Psilocarphus tenellus E. W. Lathrop 1966-4-10 6155 Orange Silverado Canyon, Santa Ana Mountains, Cleveland National. Forest, Trabuco District. 366 Comment
  RSA588710  Psilocarphus tenellus Fred M. Roberts 1990-5-22 4640 Orange Santa Ana Mountains; Upper Hot Springs canyon, just west of Falcon Group Camp, 1.9km ESE Los Pinos Peak. 994 Comment
  IRVC27016  Psilotum nudum A. C. Sanders, Mark A. Elvin 2003-11-9 27356 Orange Irvine: UCI Arboretum, UCI campus near intersection of Jamboree Blvd. and Campus Dr. Southern Coastal 15 Comment
  UC572669 Image available Ptelea crenulata W. G. Watkins 1937-2-1 5 Orange Santiago Canyon Comment
  SBBG1714  Pterostegia drymarioides H. and M. Dearing 1937-4-12 2834 Orange Santa Ana Cyn Comment
  UCR193500  Pterostegia drymarioides A. C. Sanders, T. B. Salvato 2008-5-13 35364 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
  UCR203979  Pterostegia drymarioides Fred M. Roberts 2008-3-12 6714 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
  UCSB43273  Pterostegia drymarioides Fletcher, Martin 1980-3-29 Orange 0.5 miles west of Drakes Beach. Comment
  CAS-BOT-BC362141  Pulicaria paludosa R. G. Ahlefeld 1959-7-15 s.n. Orange Santa Ana Canyon, e. of Fullerton Comment
  RSA683921  Pulicaria paludosa Scott D. White, Matt Carlton 2003-11-20 9863 Orange Santa Ana Mountain foothills; San Juan Creek in San Juan Capistrano; (San Juan Capistrano). 24 Comment
  SD173186  Pulicaria paludosa Brant Primrose 2003-6-30 Orange Intersection of Bonita Canyon Drive and Culver Drive 241 Comment
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Nov 24 2010
  SEINET10758120  Pulicaria paludosa Peter H. Raven 2009-8-29 Raven 28670 Orange Irvine, SE corner of intersection of Jamboree and MacArthur. Comment
  UCR101362  Pulicaria paludosa A. C. Sanders, P. J. MacKay, Tim Thomas, O. F. Clarke 1998-10-17 22266 Orange Coastal flats, Bolsa Chica, near Bolsa Bay, south of Warner Ave., east of the Pacific Coast Highway .3 Comment
  UCR95480  Pulicaria paludosa P. H. Raven 1961-10-15 16847 Orange Anaheim: Santa Ana River Bed at Anaheim Street crossing 61 Comment
  RSA0041475  Pulicaria paludosa Fred M. Roberts, Robert L. Allen 1985-8-19 2163 Orange Mission Viejo: English Creek near confluence of Aliso Creek, 1.1km E E1 Toro Fire Station. 138 Comment
  UCSB52414  Quercus X acutidens Roberts, Fred 1982-7-9 Orange Santa Ana Mtns,: San Juan Canyon, Hwy 74, entrance to Lower San Juan Picnic ground; 1.9km NW Sitton Peak 305 Comment
  RSA20363  Quercus X grandidentata Percy C. Everett 1937-11-30 9379 Orange Santa Ana Mts., head of Claymine Canyon on north slopes of Sierra Peak. 762 Comment
  RSA476854  Quercus agrifolia Claire Kibbe 1936-07 19954 Orange Santa Ana Canyon. Comment
  RSA5283  Quercus agrifolia Carl B. Wolf, B. D. Stark 1932-12-19 4432 Orange Skyline Drive, Black Star Canyon, 2 miles below summit 610 Comment
  IRVC24545  Quercus berberidifolia Fred M. Roberts, R. L. Allen 1985-8-19 2138 Orange Mission Viejo: lateral to Engilish Canyon along Vista de Lago Drive; 3.4km ENE El Toro Fire Station. Southern Coastal 218 Comment
  RSA642705  Quercus berberidifolia R. E. Riefner Jr. 2000-3-19 20 -144 Orange NCCP North Ranch Policy Plan Area. Main Divide Road; top of Gypsum Canyon, Windy Ridge. 518 Comment
  RSA87168  Quercus berberidifolia F. W. Peirson 1925-4-10 5738 Orange In Silverado Canyon. 610 Comment
  UCR119315  Quercus berberidifolia R. E. Riefner Jr. 2000-1-18 20- 103 Orange Peninsular Range, Santa Ana Mountains: North Ranch Policy Plan Area, Main Divide Road, top of Gypsum Canyon at Windy Ridge 518 Comment
  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
  UCR119800  Quercus berberidifolia R. E. Riefner Jr. 2000-3-19 20- 144 Orange Santa Ana Mountains, North Ranch Policy Plan Area, top of Gypsum Canyon, Windy Ridge 518 Comment
  UCR132977  Quercus berberidifolia Adrian Wolf 2000-6-1 467 Orange Santa Ana Mtns., North Ranch Policy Plan Area, West Fremont Canyon 534 Comment
  UCR132989  Quercus berberidifolia Adrian Wolf 2000-7-3 448 Orange Santa Ana Mtns., 0.4 km SE of Black Star Canyon mouth 290 Comment
  UCR193768  Quercus berberidifolia A. C. Sanders, Fred M. Roberts 2008-7-3 35678 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor 415 Comment
  IRVC1334  Quercus chrysolepis A. S. Boughey 1965-3-16 68 Orange Santa Ana Mtns: Silverado Cyn. Peninsular Ranges Comment
  IRVC29765  Quercus chrysolepis Barry S. Nerhus, Mark A. Elvin 2006-11-4 6 Orange Huntington Beach, Bolsa Chica Wetlands, SW portion of Reserve beside Pacific Coast Highway. Southern Coastal 0 Comment
  UC1135378  Quercus chrysolepis H. E. Norton 1931-3-20 46 Orange Corona Quad. 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
  RSA0013860  Quercus dumosa Fred M. Roberts 2012-5-10 7560 Orange San Joaquin Hills: Buck Gully, S Fork, north slope Pelican Hill, 0.6 km N summit Pelican Hill, north of Pelican Hill Drive. 183 Comment
  UCR129347  Quercus dumosa Fred M. Roberts, Karen Kirtland 1989-2-22 4183 Orange San Joaquin Hills, Pelican Hill, 0.4 km ESE of summit 189 Comment
  UCSB52410  Quercus engelmannii Roberts, Fred 1982-7-8 Orange Laguna Niguel; canyon near Pacific Island Dr., 1.4 km. ESE Aliso Peak: 1.1 km. NE Bench Mark 133 207 Comment
  UCD46911  Quercus lobata James Trumbley 1980-1 2 Orange Crystal Cove State Park, ca. 1 mile inland, in Moro Canyon, a coastal canyon between Laguna Beach and Corona del Mar, Orange County, California. 30 Comment
  OBI82184  Quercus suber Unknown 2012-11-18 12 -555 Orange City of Irvine, San Joaquin Wildlife Sanctuary, South Loop Trail, N of San Diego Creek, W of Campus Drive 8 Comment
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Dec 12 2019
  POM18130  Quercus wislizeni var. frutescens P. A. Munz 1923-9-7 7734 Orange Santa Ana Mts. From Holy Jim Canyon to Santiago Peak. 1067 Comment
  RSA598966  Rafinesquia californica Scott D. White 1997-3-28 4838 Orange Santa Ana Mountains: above Modjeska Canyon, proposed water tank site. 427 Comment
  RSA68306  Rafinesquia californica G. R. Campbell 1951-5-30 16101 Orange San Juan Canyon, Ortega Hwy, 4 mi. inside west border of Cleveland National Forest. 152 Comment
  UCR209061  Rafinesquia californica A. C. Sanders, Fred M. Roberts 2008-4-22 35049 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, slopes of south end of Loma Ridge and at head of Limestone Canyon, c. 2.5 miles SW of Silverado 488 Comment
  UCR241898  Ranunculus californicus Fred M. Roberts 2012-4-24 7531 Orange Peninsular Ranges; coastal foothills, San Joaquin Hills, Buck Gully, above main trail, 2 km W Signal Peak and about 0.4 km S San Joaquin Hills Road 155 Comment
  RSA542413  Ranunculus californicus Fred M. Roberts 1989-3-17 4208 Orange Aliso Wood Canyon Regional Park, Aliso Canyon, 3.3km SSE Moulton Peak. 61 Comment
  RSA542414  Ranunculus californicus Fred M. Roberts 1987-4-3 3347 Orange Irvine: San Joaquin Hills, Central Shadey Canyon, 2.8 kilometers NE Signal Peak. 109 Comment
  RSA734146  Ranunculus californicus R. H. McArthur 1934-3-3 s.n. Orange Forks of laguna Canyon Comment
  IRVC1157  Raphanus sativus D. Pfirrmann 1965-4-28 Orange Del Mar and Fair[way] Dr. Costa Mesa Comment
  IRVC19391  Raphanus sativus R. L. Allen 1983-2-12 A623 Orange Fullerton; Hillcrest Park, slope bordering E Valley View Drive. Southern Coastal Comment
  RSA703880  Raphanus sativus Fred M. Roberts, D. E. Bramlet 2004-4-21 6043 Orange Rancho Mission Viejo: Donna O Neill Land Conservancy. Along Back Road in upper Shady Canyon, 1.74km NW Sycamore Gate, 1.23km W of Cristianitos Road. 180 Comment
  UC1543096  Raphanus sativus Donald G. Nelson 1936-5-29 432 Orange e of Buena Park (on n side of West Commonwealth Avenue, on edge of Fullerton Municipal airport); Fullerton Municipal airport, West Commonwealth Avenue Comment
  OBI30177  Raphanus sativus T. W. Niilus 1970-2-14 N 16 Orange 1 mi E of Yorba Linda on Imperial hwy on road cut 91 Comment
  RSA651170  Raphanus sativus Norman Willis 1948-2-8 s.n. Orange 2 miles E of Orange 60 Comment
  RSA658474  Raphanus sativus J. Berkley 1994-4-19 5 Orange Yorba Linda, off Bastuchury Rd. about 50 yds from Casa Loma Ave. Comment
  UCR125475  Rhamnus alaternus Roger E. Reinke 2003-2-18 s.n. Orange South Coast, Newport Back Bay, Big Canyon 30 Comment
  UCR250135  Rhamnus alaternus Dick Newell 2013-12-1 344 Orange South Coast, Big Canyon Trail, Newport Back Bay, Newport Beach 5 Comment
  IRVC29872  Rhamnus alaternus Mark A. Elvin, D. Kelch 2006-12-9 5300 Orange Newport Backbay; Big Canyon, lower end. Southern Coastal 3 Comment
  UCR26626  Rhamnus californica E. W. Lathrop 1966-5-1 6260 Orange Santa Ana Mtns., 5 mi east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest 400 Comment
  POM261672  Rhamnus californica subsp. californica W. Pequegnat 1941-09 s.n. Orange Silverado Canyon. Comment
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Sep 7 2010
  UC592928  Rhamnus californica subsp. californica P. C. Everett 1936-9-19 Orange Silverado Canyon, in vicinity of forest service road gate at base of road Santa Ana Mountains 762 Comment
  RSA716719  Rhamnus crocea Fred M. Roberts 2004-6-16 6055 Orange San Joaquin Hills: Temple Hill, slopes above Hobo Cyn., adj. to 591 Balboa Ave.; 1.0km NNE Golf Island Survey Mark. 175 Comment
  RSA801993  Rhamnus crocea R. H. McArthur 1934-9-17 s.n. Orange Gypsum Canyon Comment
  UC1121827  Rhamnus crocea A. Lewis Apr 1934 400 Orange near Arch Beach; Corona Quad. 182 Comment
  CAS-BOT-BC56024  Rhamnus ilicifolia John Thomas Howell 1927-7-24 2824 Orange Sandy floor of Claymine Canyon, n. end of Santa Ana Mts. 152 Comment
  CAS-BOT-BC56038  Rhamnus ilicifolia C. B. Wolf 1931-3-6 1841 Orange 1/2 mile above Trabuco Oaks, Trabuco Canyon, west slope Santa Ana Mts. 457 Comment
  HSC25243  Rhamnus ilicifolia Richard Spjut 1972-2-22 2226 Orange W of the Cleveland National Forest in the Santa Ana Mtns. along Hwy. 74 152 Comment
  SBBG27250  Rhamnus ilicifolia C. B. Wolf, E. R. Johnson 1933-11-3 Orange Silverado Cyn at base of Silverado Motorway 731 Comment
  UCR241070  Rhus aromatica Dick Newell, Judy Booth 2013-3-24 322 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, on Maple Springs Rd./Silverado Cyn. Rd., 1.5 miles above Maple Springs gate 673 Comment
  IRVC27932  Rhus glauca A. C. Sanders, Mark A. Elvin 2003-10-12 27327 Orange Irvine; UCI Arboretum, UCI campus near intersection of Jamboree Blvd and Campus Dr. Southern Coastal 15 Comment
  CAS-BOT-BC167879  Rhus integrifolia John Thomas Howell 1927-7-29 2871 Orange Hills on n. side of Santa Ana [Canon] Canyon 243 Comment
  POM293120  Rhus integrifolia Lyman Benson 1946-5-13 12093 Orange Corona del Mar, Pacfic Ocean drainage area 50 Comment
  RSA386362  Rhus integrifolia Albert J. Perkins 1923-6-28 s.n. Orange Negre Canon Beach, Santa Ana. Comment
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Nov 1 2013
  SD253896  Rhus integrifolia Jim Riley 2013-12-10 133 Orange San Clemente area; 0.29 miles E intersection Avenida Pico and Camino La Pedriza; just N San Diego County line 74 Comment
  RSA0031756  Rhus integrifolia R. F. Thorne 1977-11-21 50818 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs Comment
  CAS-BOT-BC167932  Rhus ovata Ira L. Wiggins 1966-3-22 21551 Orange Hillside at end of pavement, Silverado Canyon, about 5 mi above Ranger Station, Cleveland National Forest Comment
  RSA696478  Rhus ovata Anonymous 1933-5-6 s.n. Orange Black Star Canyon [county not specified] Comment
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Jun 10 2012
  UCSB12554  Rhus ovata Huot, J. 1961-3-26 Orange Laguna Canyon Road, 9 miles from Highway 101 304 Comment
  UCSB41759  Rhus ovata Miller, Marsha 1965-1-15 Orange Trabuca Canyon road to lower camp ground Comment
  UCSB47593  Rhus ovata Roberts, Fred 1980-4-5 Orange Highway 74, San Juan Canyon, 0.4 km. SW Lower San Juan Picnic Ground, Santa Ana Mountains 390 Comment
  RSA0022442  Ribes amarum Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49777 Orange Santa Ana Mountains: Trabuco Canyon. Comment
  RSA476256  Ribes californicum var. hesperium E. Crow 1929-4-7 319 Orange Corona skyline Drive, Santa Ana Mts Comment
  UC1127382  Ribes californicum var. hesperium A. Lewis May 1934 422 Orange Trabuco Canyon Cleveland National Forest, Elsinore Quadrangle Comment
  SD247656  Ribes californicum var. hesperium R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49707 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  UC484246  Ribes indecorum C. B. Wolf 1931-3-6 1861 Orange 1 mi n of base Modieska Grade (w slope of mts.); Santa Ana Mts. 304 Comment
  CAS-BOT-BC168941  Ribes malvaceum B. D. Stark 1932-2-22 2662 Orange Rancho Santa Ana, Santa Ana Canyon, in canyon west of Roundtop Peak 457 Comment
  PASA2256  Ribes malvaceum Frank W. Peirson 1923-5-6 Orange Santiago Peak. Holy Jim Trail near spring 1142 Comment
  RSA0021665  Ribes malvaceum Keith E. Hoffmaster 1932-4-17 517 Orange Santa Ana Mts. [Orange/Riverside Cos] Comment
  RSA1336  Ribes malvaceum var. viridifolium E. R. Johnson 1929-3-12 1250 Orange Canyon West of Roundtop Rancho Santa Ana. 457 Comment
  RSA1337  Ribes malvaceum var. viridifolium E. R. Johnson 1929-3-12 1251 Orange Canyon West of Roundtop Rancho Santa Ana. 457 Comment
  RSA184142  Ribes malvaceum var. viridifolium I. L. Wiggins 1966-2-4 20419 Orange Trabuco Canyon, about 1/2 mi. above canyon mouth Comment
  RSA441490  Ribes malvaceum var. viridifolium Anstruther Davidson 1977-5-18 5623 Orange Santa Ana Mts, Cleveland National Forest, Bear Springs. 1220 Comment
  RSA732251  Ribes malvaceum var. viridifolium A. C. Sanders, Fred M. Roberts 2008-4-22 35037 Orange Lomas de Santiago, Limestone Canyon, c. 2 miles SW of Silverado 366 Comment
  SD247657  Ribes malvaceum var. viridifolium R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 46706 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  RSA0018258  Ribes roezlii Robert F. Thorne, E. W. Lathrop 1977-5-18 49739 Orange Santa Ana Mountains: summit of Santiago Peak. 1733 Comment
  RSA0018261  Ribes roezlii Percy C. Everett 1935-6-18 7215 Orange Santa Ana Mts: Summit of Santiago Peak. 1732 Comment
  POM6324  Ribes speciosum P. A. Munz, L. T. Street 1919-5-4 2684 Orange Laguna Canyon. Comment
  RSA608233  Ribes speciosum Steve Boyd, Bart O'Brien 1998-1-13 10067 Orange Santa Ana Mountains: north end of the range, saddle between Mabey and Fremont canyons, along Main Divide Road ( 3S04) ca. 1.0 mi N of Oak Flat. 884 Comment
  UCR190971  Ribes speciosum A. C. Sanders, Fred M. Roberts 2008-4-22 35038 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Limestone Canyon, c. 2 miles SW of Silverado 396 Comment
  UCR3197  Ribes speciosum Chuck Elliott 1964-5-2 s.n. Orange Los Angeles Basin Region, Carbon Canyon 61 Comment
  IRVC26686  Ribes speciosum Mark A. Elvin 2004-4-4 3234 Orange UCI Arboretum Southern Coastal 15 Comment
  IRVC9188  Ricinus communis R. Yarnell 1966-3-4 53 Orange hills near jct. of Newport Blvd. and Riverside Hwy [Fwy?], Anaheim? Comment
  OBI7990  Ricinus communis Kurt R. Neisess 1975-12-20 s.n. Orange In the Fullerton Hills area Comment
  RSA226636  Ricinus communis Christopher Davidson, G. Benny 1971-6-15 1543 Orange Brea Canyon, 0.5 mile N of Central Avenue, along Brea Creek, near Brea Oil Co. wells. Comment
  RSA588714  Romneya coulteri Fred M. Roberts, David Mageny 1990-6-14 4683 Orange Lake Forest: Lomas de Santiago, Upper Aliso Creek, just north of El Torro Road. 5.4 kilometers S Bolero Lookout. 241 Comment
  UC1018189  Romneya coulteri J. Warren 1952-5-23 Orange Santa Ana Canon 457 Comment
  UCR203896  Romneya coulteri R. E. Riefner Jr. 2008-3-20 08- 106 Orange Santa Ana Mountains, Irvine Ranch Reserve, Fremont Canyon Conservation Easement, west fork Fremont Canyon, south Donaldson Ranch area 380 Comment
  RSA0014062  Romneya trichocalyx Fred M. Roberts 2008-5-30 7017 Orange Lomas de Santiago: Santiago Creek wash, south of Irvine Mesa, 1.5 km SE Silverado Sch., Irvine Ranch Conservancy. 326 Comment
  CAS-BOT-BC74420  Rorippa curvisiliqua Le Roy Abrams 1901-6-1 1768 Orange Laguna. Comment
  CAS-BOT-BC74421  Rorippa curvisiliqua P. A. Munz 1918-5-4 2208 Orange Laguna Lakes. Comment
  JEPS47230  Rosa L. M. Booth 1932-6-7 1161 Orange Newport Bay Comment
  UC1128581  Rosa californica J. B. Spring 1931-3-6 23 Orange Baker Canyon Corona Quadrangle Comment
  UCR98236  Rosa californica B. G. Pitzer 1997-4-15 3132 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
  JEPS47286  Rubus pensilvanicus Lawrence M. Booth 1932-7-19 1271 Orange Bolsas Creek Comment
  RSA5356  Rubus ursinus B. D. Stark 1933-1-4 4493 Orange Bottom of Claymine Canyon. No. end of Santa Ana Mts. 305 Comment
  UCSC000946  Rubus ursinus Peter Kamb 1948-6-19 1089 Orange Santa Ana Mts., Holy Jim Canyon 610 Comment
  RSA0048662  Rubus vitifolius Keith E. Hoffmaster 1930-4-27 505 Orange Santa Ana Mts. [Orange or Riverside County] Comment
  SD245454  Rumex conglomeratus R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49586 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway. San Juan Creek. Comment
  UCR16522  Rumex crispus J. S. Davis 1972-5-6 720506- 26 Orange Newport Beach, 1.1 miles north from corner of San Jaquin Hills Road and Back Bay Road. 200 yards east along creek bed 6 Comment
  CAS-BOT-BC433581  Rumex hymenosepalus Carl B. Wolf 1932-3-15 2712 Orange Lower end of Santa Ana Canyon, 1 mi. W. of Atwood. 76 Comment
  RSA16974  Rumex hymenosepalus E. R. Johnson 1936-4-16 7768 Orange Santa Ana Canyon, Rancho Santa Ana, along the road near roundtop. 366 Comment
  POM201764  Rumex maritimus L. M. Booth 1932-6-28 s.n. Orange Bolsas Marsh. Comment
  RSA591512  Rumex obtusifolius John Ko 1996-4-19 s.n. Orange San Joaquin Hills, Irvine, SBBM approx. 750 ft SW of Bonita reservoir. Approx. 1000 ft. N of Ford Road. 49 Comment
  POM17440  Rumex salicifolius P. A. Munz 1923-4-1 6597 Orange Laguna Lakes 61 Comment
  IRVC15167  Rumohra adiantiformis Dorleene Van Gorden 1965-5-9 s.n. Orange Silverado Canyon. Peninsular Ranges, Santa Ana Mountains 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
  RSA317355  Ruppia maritima James R. Shevock 1974-5-3 3453 Orange Newport Back bay along Back Bay Drive Comment
  POM186291  Salicornia bigelovii Joseph A. Ewan 1932-7-29 7713 Orange Newport lagoon Comment
  JEPS73723  Salicornia subterminalis L. R. Heckard with T. I. Chuang and R. Bacigalupi 1968-7-16 2046 Orange just s. Bolsa Chica State Park (Salt Marsh (s. end of Bolsa Bay)); Bolsa Bay Comment
  RSA268  Salicornia virginica J. T. Howell 1927-10-29 788 Orange Bryant Ranch, near Long Beach. 15 Comment
  UC7477  Salicornia virginica O. B. Byram 1901-9-10 2 Orange Westminster Comment
  RSA478901  Salicornia virginica Anstruther Davidson 1907-09 1780 Orange Newport. Comment
  RSA70037  Salicornia virginica F. W. Peirson 1924-8-29 5081 Orange 2.5 miles from Balboa on road inland along creek. Comment
  JEPS38488  Salix exigua Alice King Apr. 1908 Orange near Santa Ana; Santa Ana River Comment
  RSA4497  Salix exigua Carl B. Wolf 1932-3-16 2715 Orange Santa Ana River bottom, Rancho Santa Ana (between pear and walnut groves). 122 Comment
  RSA542353  Salix exigua Fred M. Roberts Jr., Gordon Marsh 1987-8-31 3602 Orange Santa Ana River: adjacent to Santa Ana, 0.5 km NE 17th St. bridge. 27 Comment
  RSA6444  Salix exigua Carl B. Wolf 1932-7-7 3843 Orange Bixby Ave., 1 km. W of Hansen road near town of Los Alamitos. 8 Comment
  SBBG58943  Salix exigua var. hindsiana C. B. Wolf 1932-7-7 3845 Orange Rancho Santa Ana, Bixby Ave, 1 km W of Hansen Rd, near Los Alamitos 8 Comment
  UC492353  Salix exigua var. hindsiana Carl B. Wolf 1932-4-15 2954 Orange near Santa Ana R. Rancho Santa Ana (along river s of pear orchard); Santa Ana Canyon 120 Comment
  CAS-BOT-BC108141  Salix gooddingii H. D. Geis 1902-1-1 533 Orange Santa Ana Comment
  HSC19941  Salix gooddingii J. W. Johnson 1961-3-29 Orange Newport Beach, S side of upper Newport Bay Comment
  IRVC29700  Salix gooddingii Mark A. Elvin, Barry S. Nerhus 2006-11-4 5241 Orange Huntington Beach; 1.5 km SW of Wintersburg, SW of jct Slater and Goldenwest; Shipley Nature Center. Southern Coastal 1 Comment
  POM2080  Salix gooddingii L. R. Abrams 1913-7-14 5005 Orange Santa Ana River Bridge, near Orange. Comment
  RSA0093589  Salix gooddingii Fred M. Roberts 2014-4-21 7855 Orange South Coast. SAN JOAQUIN HILLS: Laguna Lake 1 (Upper Laguna Lake), south basin. 113 Comment
  RSA658950  Salix gooddingii Caralisa Breidenbaugh, Mark Breidenbaugh 1992-5-15 21 Orange 1/2 mile south of Chino Hills State Park. 168 Comment
  UC407315  Salix gooddingii LeRoy Abrams 1903-4-16 2156 Orange Santa Ana R. near Orange Comment
  UCR102630  Salix gooddingii B. G. Pitzer 1997-4-15 3153 Orange San Joaquin Hills, Crystal Cove State Park, north of the N end of the City of Laguna Beach. Along Moro Canyon Trail, from beginning to a point c. 1.75 mi. up the canyon. 49 Comment
  SEINET13212664 Image available Salix gooddingii Unknown 1903-1 3256 /1227 Orange Santa Ana River near Orange, S. California. Comment
  RSA0034661  Salix hindsiana var. leucodendroides Carl B. Wolf 1932-4-15 2954 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Canyon. 120 Comment
  RSA0038335  Salix hindsiana var. leucodendroides Carl B. Wolf 1932-3-16 2714 Orange Rancho Santa Ana. 121 Comment
  RSA0034815  Salix hindsiana var. parishiana Marcus E. Jones 1930-3-3 s.n. Orange Santa Ana Mountains. Comment
  RSA12633  Salix laevigata Carl B. Wolf 1934-8-16 6067 Orange Bryant Ranch east of Long Beach. Near N.W. corner section 33. Comment
  UCR195007  Salix laevigata A. C. Sanders, Fred M. Roberts 2008-8-7 35984 Orange Peninsular Range; Santa Ana Mtns., lower Weir Canyon, at narrow gorge c. 0.6 mi. above mouth of cyn at Irvine Ranch gate 192 Comment
  UCR279478  Salix laevigata Robert DeRuff 2012-3-12 576 B Orange South Coast, Newport Beach, Shellmaker Island, 0.08 mi. west of Back Bay Drive 2 Comment
  RSA0070788  Salix laevigata CNPS Accuracy Assessment Team 2014-4-28 1134 Orange Black Star Canyon. Comment
  LA210190  Salix lasiolepis Lawrence M. Booth; 1932-12-31 1384 Orange Newport Bay Comment
  RSA542509  Salix lasiolepis Fred M. Roberts Jr., W. R. Ferren 1987-4-8 3357 Orange Newport Beach: Upper Newport Back Bay, west side, North Star Beach, 0.8 km N Coney Island. 0 Comment
  RSA700179  Salix lasiolepis Minor Warne 1934-2-1 s.n. Orange Santa Ana River bed Comment
  UCR239223  Salix lasiolepis var. lasiolepis Fred M. Roberts 2012-4-24 7507 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
  RSA700196  Salix sessilifolia Minor Warne 1934-02 s.n. Orange Santa Ana River Comment
  CDA5811  Salpichroa origanifolia Margaret Bellue Oct 1944 Orange Yorba Linda. 0 Comment
  CAS-BOT-BC403759  Salpichroa origanifolia E. L. Paddock 1943-5-19 12747 Orange 1 mile east of Brea Comment
  RSA39339  Salpichroa origanifolia E. L. Paddock 1943-5-28 12744 Orange Little Tia Juana Campsite, Sunny Hills Ranch, Fullerton. 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
  CDA1357  Salsola australis R. E. Riefner Jr. 2006-11-12 06 -558 Orange Newport Beach; Irvine Coast Trail at San Diego Creek, S of Jamboree Rd near SR-73 crossing. Comment
  RSA4795  Salsola kali James Snow s.n. Orange Bryant Ranch, near Long Beach. Station #1. Plant #5. Comment
  RSA696279  Salsola kali var. tenuifolia Keith E. Hoffmaster 1927-5-30 s.n. Orange Santa Ana. Comment
  RSA728668  Salsola tragus R. E. Riefner 2006-10-19 6 -558 Orange City of Newport Beach, Irvine Coast Trail at San Diego Creek, near SR-73 crossing, S of Jamboree Rd. 3 Comment
  RSA5384  Salvia apiana B. D. Stark 1932-12-30 1705 Orange Rancho Santa Ana, 1/4 mile W of Roundtop. 457 Comment
  RSA542480  Salvia apiana Fred M. Roberts, G. A. Marsh, K. G. Marsh 1988-4-26 3941 Orange San Joaquin Hills: Pelican Hill, 0.5km SE summit. 165 Comment
  UCR131891  Salvia apiana J. Mallory, V. McCoy 1995-7-3 6454- 67 Orange Santa Ana Mountains: N-facing slope in Santiago Canyon, c. 0.5 mi. east of Santiago Canyon Rd; near Irvine Park 200 Comment
  UCR192094  Salvia apiana A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35292 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir 300 Comment
  UCR97885  Salvia apiana George K. Helmkamp, E. A. Helmkamp 1997-4-24 1664 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, 1.6 mi. SE of Ortega Hwy (Calif. Hwy 74) on Rd. 7-S14 549 Comment
  RSA722335  Salvia carnosa Seacord s.n. Orange Victor Valley-Mohave. Comment
  IRVC26696  Salvia chionopeplica Mark A. Elvin 2004-4-4 3227 Orange UCI Arboretum Southern Coastal 15 Comment
  UCSB47594  Salvia columbariae Roberts, Fred 1980-5-3 Orange Santa Ana Mtns; San Juan Canyon: Rte.74; 0.6 km E San Juan Guard Station 238 Comment
  CAS-BOT-BC233671  Salvia leucophylla Carl B. Wolf 1943-6-8 11448 Orange Rancho Santa Ana Botanic Garden, Santa Ana River Canyon 198 Comment
  RSA5345  Salvia leucophylla B. D. Stark 1932-12-30 4464 Orange Rancho Santa Ana, slopes NW of tennis court. Comment
  RSA614341  Salvia mellifera B. Pitzer 1996-4-30 2798 Orange Crystal Cove State Park, S of City of Irvine on State Hwy 1 (Pacific Coast Hwy). Bluffs above the beach. Comment
  SD232708  Salvia mellifera Mallory, McCoy 1995-6-30 Orange S-facing slope in chaparral on Windy Ridge, approx. 2.5 mi. S of 91 frwy, within footprint of the Eastern Transportation Corridor. Comment
  UC1292282  Salvia mellifera C. L. Hitchcock and C. V. Muhlick 1964-3-17 23066 Orange 8 mi e Yorba Linda; Santa Ana Canyon Comment
  UC1618084  Salvia mellifera Donald G. Nelson 1935-3-17 170 Orange Carbon Canyon Comment
  UCR239634  Salvia mellifera Fred M. Roberts 2012-4-24 7502 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
  POM4055  Salvia spathacea I. M. Johnston 1918-5-4 951 Orange Hills back of Laguna Beach. 30 Comment
  RSA434083  Salvia spathacea Unspecified 1920-6-2 s.n. Orange Laguna. Comment
  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
  POM201930  Sambucus mexicana L. M. Booth 1932-5-27 s.n. Orange Newport Bay. Comment
  POM213050  Sambucus mexicana C. B. Wolf 1934-9-21 6140 Orange Silverado Canyon, west slope of Santa Ana Mountains, 3/4 mi. below foot of Silverado Motorway. 549 Comment
  RSA658215  Sambucus mexicana T. A. Daubert 1991-5-26 656 Orange Tucker Wildlife Sanctuary, Modjeska Canyon inside sanctuary. Comment
  CAS-BOT-BC238832  Sambucus nigra subsp. caerulea John Thomas Howell 1927-6-1 Orange Southern Puente Hills, Santa Ana Canon [Canyon] 152 Comment
  OBI5973  Sambucus nigra subsp. caerulea Carl B. Wolf 1931-7-25 2293 Orange Upper sonoran; Above the irrigation canal, just N of the Mexican houses, Rancho Satna Ana, Santa Ana cyn 122 Comment
  RSA542458  Samolus parviflorus Fred M. Roberts 1987-8-6 3581 Orange San Joaquin Hills: Los Tracos Canyon, 0.9km ESE Pelican Hill. 78 Comment
  RSA48925  Sanicula arguta P. A. Munz 1949-5-26 13378 Orange Head of Sierra [Freemont] Canyon, Santa Ana Mountains. 732 Comment
  RSA761933  Sanicula arguta Robt. Allen 2005-4-30 12506 Orange Caspers Wilderness Park, East Ridge Trail. 175 Comment
  RSA542436  Sanicula bipinnata Fred M. Roberts 1988-3-15 3853 Orange Rancho Mission Viejo: Verdugo Canyon, 2.6 km ENE Point Rancho Survey Mark 149 Comment
  POM122936  Sanicula crassicaulis Marcus E. Jones 1926-3-13 s.n. Orange Santa Ana Canyon. Comment
  RSA680909  Sanicula crassicaulis Scott D. White 2003-3-21 8810 Orange Santa Ana Mountain Foothills: Rancho Mission Viejo. East-facing slopes above an unnamed tributary to San Juan Creek. 122 Comment
  UC1980267  Sanicula crassicaulis A. C. Sanders with Fred M. Roberts 2008-4-8 34768 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago, Loma Ridge, SSE of Santiago Reservoir on Loma Ridge Spur Rd., above Dripping Springs Loop Rd. Comment
  UCR234143  Sanicula crassicaulis Dick Newell, Don Millar 2012-3-13 230 Orange South Coastal Plain, Buck Gully, city of Newport Beach 148 Comment
  SD37460  Sarcocornia pacifica Edith A. Purer 1932-8-31 4876 Orange Moist location on sand dunes. Comment
  IRVC28644  Satureja chandleri Mark A. Elvin, A. C. Sanders 2005-9-2 4499 Orange Mouth of Lion Cyn, just up stream from Lower San Juan Campground. Santa Ana Mtns 457 Comment
  HSC3171  Schinus molle D. W. Snell 1964-3-27 33 Orange Sterns lease 1.5 mi. E of Brea. Comment
  RSA658195  Schinus molle T. A. Daubert 1991-5-26 674 Orange Tucker Wildlife Sanctuary, Modjeska Canyon nature trail. Comment
  UCR217463  Schinus terebinthifolius Mark A. Elvin 2003-2-23 2310 Orange South Coast, Irvine, San Joaquin Marsh along the berm of San Diego Creek 3 Comment
  UCR239224  Schinus terebinthifolius Fred M. Roberts 2012-4-24 7508 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
  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
  UCR192493  Schismus barbatus A. C. Sanders, Fred M. Roberts 2008-3-25 34561 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  RSA0057936  Schismus barbatus Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49667 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. Comment
  RSA793257  Schoenoplectus americanus Robert F. Thorne 1984-1 s.n. Orange Newport Back Bay Comment
  RSA184313  Schoenoplectus californicus L. M. Booth 1932-8-4 s.n. Orange Santa Ana River, one mile from sea - sea level. 0 Comment
  RSA793256  Schoenoplectus californicus Robert F. Thorne 1984-1 s.n. Orange Newport Back Bay Comment
  RSA233015  Schoenoplectus maritimus Christopher Davidson, Gerald L. Benny 1971-6-15 1554 Orange Carbon Canyon, 1 mile SW of Carbon Canyon mineral spring. Comment
  POM201902  Schoenoplectus robustus L. M. Booth 1932-7-29 1328 Orange East side of Newport Lagoon. Comment
  CAS-BOT-BC111820  Schoenoplectus tabernaemontani Helen D. Geis 1902-11-1 s.n. Orange Santa Ana Peat lands. Comment
  RSA89  Scirpus acutus var. occidentalis J. T. Howell 1927-7-5 270 Orange West side, Rancho Santa Ana [Botanic Garden]. 152 Comment
  UC840666  Scirpus californicus P. A. Munz 1922-9-2 6351 Orange Laguna Canyon 45 Comment
  POM4221  Scrophularia californica subsp. floribunda Philip A. Munz 1918-5-4 2199 Orange Laguna Canyon. Comment
  RSA701800  Scrophularia californica subsp. floribunda Fred M. Roberts, David E. Bramlet 2003-6-6 5889 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, Cristianitos Cyn., 0.7km SW int. Cristianitos and TRW Rds. and 0.23km W of SDGandE substation. 94 Comment
  RSA82293  Scutellaria tuberosa F. W. Peirson 1923-3-25 3377 Orange Aliso Creek, near Laguna Beach. Near summit of a ridge about 200 ft. above the sea. 61 Comment
  CAS-BOT-BC414243  Searsia lancea R. E. Riefner, Jr. 2014-11-21 14 -391 Orange City of Lake Forest, English Canyon, Aliso Creek, vicinity of Cherry Ave. and Fernbank Ave. 145 Comment
  LA209608  Selaginella asprella Lawrence L. Kiefer; 1963-12-8 1112 Orange Santa Ana Mountains, road to Santiago Peak from Silverado, bluff above road, ca. 1.5 mi below summit of peak 1523 Comment
  POM210021  Selaginella bigelovii John Thomas Howell 1927-7-22 2834 Orange Claymine Canyon, Santa Ana Mts. 182 Comment
  UCR100184  Selaginella bigelovii Scott D. White 1996-12-20 4632 Orange Santa Ana Mountains, above Modjeska Canyon; proposed water tank site 488 Comment
  RSA0012667  Senecio californicus R. E. Riefner Jr. 2000-6-26 20 -583 Orange NCCP North Ranch Policy Plan Area. Along dirt road running N from Baker Canyon Road. 305 Comment
  RSA0124181  Senecio flaccidus var. douglasii M. B. Dunkle 1934-3-18 3973 Orange Upper San Juan Canyon. 610 Comment
  RSA937  Senecio flaccidus var. douglasii J. T. Howell 1927-6-6 43 Orange Santa Ana River bottom, Rancho Santa Ana 152 Comment
  RSA710592  Senecio linearifolius Mark A. Elvin 2003-8-24 3011 Orange Southern coastal: San Jaquin Hills, Irvine, UCI, 100m N of the intersection of Shady Canyon Drive and Bonita Canyon Road. 72 Comment
  UCR200664  Senecio linearifolius Daniel Sanchez-Mata 2006-7-1 s.n. Orange Laguna Niguel, Dana Point Highlands, Crown Valley Parkway at Pacific Island Drive 70 Comment
  RSA734612  Senecio vulgaris Keith E. Hoffmaster 328 Orange Santa Ana Comment
  RSA383927  Sequoia sempervirens Albert J. Perkins 1915-3-30 s.n. Orange [Timmon s Dooryard] N. Main St. Santa Ana Calif. Comment
  SEINET3876377 Image available Sequoia sempervirens Pamela G. Jones 1967-9-11 30 Orange Yorba Linda City Park.; 0 Comment
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May 7 2015
  RSA5954  Sesuvium verrucosum C. B. Wolf 1932-7-7 3847 Orange Bryant Ranch, 100 ft. N of Bixby Ave. & 7/10 miles W of Hansen road., (100 ft. N & 2/10 mi. W of SE corner of NE 1/4 of NW 1/4 of sect. 34 T4S R11W) Comment
  SEINET238939 Image available Sesuvium verrucosum A. C. Sanders, D. Malueg; K. D. Jones 2000-1 23334 Orange Pacific Coast: Bolsa Chica Lagoon, along dirt roads in oil field, east of Hwy 1, east of Bolsa Chica St. 0 Comment
  RSA724101  Setaria adhaerens R. E. Riefner 2006-8-6 6 -373 Orange City of Huntington Beach, Atlanta St. at Surge Ln. 11 Comment
  CAS-BOT-BC243592  Setaria parviflora Carl B. Wolf 1932-6-13 3725 Orange Malvern and Nicholas Aves., Fullerton 53 Comment
  POM1043  Setaria parviflora Clare B. Hardham s.n. Orange Laguna Beach, Orange County Comment
  RSA0027437  Setaria parviflora Fred M. Roberts 2012-7-18 7676 Orange San Joaquin Hills: Newport Beach, Buck Gully, Buck Gully Trail, west end, just east of north terminus of Poppy Street and 2.1 km WNW summit of Pelican Hill. 37 Comment
  CAS-BOT-BC240116  Setaria sphacelata Ira L. Wiggins 1965-9-26 20266 Orange Just south of Letters and Science Building, California State College at Fullerton Comment
  CAS-BOT-BC240183  Setaria verticillata Ira L. Wiggins 1965-11-7 20361 Orange Vacant lot on west side of State College Blvd., near Troy High School, Fullerton Comment
  UCR152761  Sibara virginica D. E. Bramlet 2004-3-26 3542 Orange South Coast, Fairview Park in Costa Mesa, 183 m west of Canyon School and 366 m NW of intersection of Wilson & Canyon Dr. 24 Comment
  RSA588729  Sidalcea malviflora Fred M. Roberts 1990-5-7 4601 Orange Rancho Mission Viejo: Ridge S of Blind Canyon and E of Christianitos Canyon, TRW Lease Holding, 5.0 km NE Clemente Survey Marker 152 Comment
  UCR191009  Sidalcea malviflora A. C. Sanders, Fred M. Roberts 2008-4-22 35018 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Limestone Canyon, c. 2 miles SW of Silverado 396 Comment
  RSA88053  Sidalcea neomexicana subsp. thurberi C. L. Hitchcock 1952-5-30 s.n. Orange About 100 yards north of Katella Ave. to west of Hanson St., about 11 miles east of Long Beach Comment
  RSA735261  Sidalcea spicata Keith E. Hoffmaster 1931-6-24 s.n. Orange South Fork Santa Ana River. Comment
  SEINET3155822  Silene W. B. Crockatt 1908-6-1 sn Orange Capistrano valley 76 Comment
  CAS-BOT-BC384498  Silene antirrhina Helen D. Geis 1902-1-1 522 Orange Santiago Cr. Comment
  SD241797  Silene antirrhina Mark A. Elvin 2003-3-30 2384 Orange South Coast: north side of UC Irvine Preserve, between core of UCI campus (E Peltason Dr.) and Hwy 73. 46 Comment
  UCR191021  Silene antirrhina A. C. Sanders, Fred M. Roberts 2008-4-22 35011 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-BC384500  Silene antirrhina Helen D. Geis 1902-3-1 s.n. Orange Santiago Creek Comment
  RSA763518  Silene californica Doris Bowers 1965-5-10 167 Orange Near California State Forestry Office, Orange 152 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
  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
  UCR76760  Silene laciniata Stu Hemstreet 1992-5-27 1958 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest. Along road (3S04) to Blue Jay Group Campground, off State Hwy 74 (Ortega Hwy), c. 2 mi. (airline) west of El Cariso Campground. 762 Comment
  SBBG104049  Silene laciniata subsp. laciniata B. Pitzer, S. Hemstreet 1992-5-27 1958 Orange rd (3S04) to Blue Jay Group Cmpgrd, off State Hwy 74 (Ortega Hwy); ca. 2 mi (airline) W of El Cariso Cmpgrd 762 Comment
  IRVC360  Silene laciniata subsp. major A. S. Boughey, P. Pembrook 1965-7-15 1053 Orange Saddleback Mtn. below Modjeska Peak, Cleveland National Forest, ; chaparral. Santa Ana Mountains Comment
  RSA659992  Silene laciniata subsp. major Steve Teh 1994-5-20 27 Orange Modjeska Grade rd. 1/2 mile on trail above fire road. Comment
  RSA696563  Silene laciniata subsp. major Minor Warne 1934-5-19 s.n. Orange Live oak Canyon. Comment
  SD245326  Silene laciniata subsp. major Robert Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49595 Orange Santa Ana Mountains: rocky ravine tributary to San Juan Canyon, along Ortega Highway (74) about 2 miles above San Juan Fire Station. Comment
  RSA16488  Silene verecunda subsp. platyota Percy C. Everett 1935-6-18 16488 Orange Santa Ana Mts., summit of Santiago Pk. 1732 Comment
  RSA14728  Silybum marianum C. B. Wolf 1935-2-26 s.n. Orange Rancho Santa Ana, near office Comment
  SDSU521  Silybum marianum Curtis B. Kendall 1994-5-18 18 V94G Orange Intersection of Bell Canyon Road and North Prusker Road in the National Audubon Starr Sanctuary. 268 Comment
  IRVC1172  Sisymbrium irio H. Ellis 1965-3-7 Orange Corona del Mar. Newport Beach Comment
  CAS-BOT-BC75236  Sisymbrium irio Ira L. Wiggins 1966-2-5 20425 Orange Roadside along Newport Boulevard, 4.5 miles north of Orange County Fairgrounds. Comment
  IRVC1189  Sisymbrium orientale D. Pfirrmann 1965-4-21 Orange 2179 Orange Ave. Costa Mesa Comment
  HSC13926  Sisyrinchium bellum S. M. Clapp 1966-4-10 32 Orange 4 mi. into Black Star Canyon 183 Comment
  JEPS64284  Sisyrinchium bellum Alice King 1908-4-19 Orange Santa Ana Mountains Comment
  RSA366972  Sisyrinchium bellum R. D. Harwood 1920-4-24 3451 Orange Santa Ana Mountains, Sierra Canyon. 366 Comment
  UCR140790  Sisyrinchium bellum Robin G. Marushia 2004-4-16 002 Orange Southern Coast, El Moro Canyon, Crystal Cove State Park, Laguna Beach; grassy ridge southwest of No Name Ridge road in park, downhill from pullout and below closed road to park entrance 244 Comment
  SEINET237157  Solanum americanum Scott D. White, Brain Leatherman 1997-6-12 5309 Orange Santa Ana Mtn. foothills. East of San Juan Capistrano: San Juan Creek between Highway 74 bridge and Mission Vieja site 250 Comment
  UCSB48043  Solanum americanum Roberts, Fred 1981-9-26 Orange Newport Beach: Pacific Coast Highway, 0.3km W Newport Blvd.; 0.4km SE Bench Mark 10 3 Comment
  RSA699756  Solanum douglasii Fred M. Roberts, David E. Bramlet 2003-6-6 5888 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, Cristianitos Cyn., 0.7km SW int. Cristianitos and TRW Rds. and 0.23km W of SDGandE substation. 94 Comment
  UC1125197  Solanum douglasii H. E. Norton 1931-3-6 35 Orange Baker Canyon 609 Comment
  UCR207564  Solanum douglasii O. F. Clarke 2004-3-22 s.n. Orange Santa Ana River Canyon, Santa Ana River on the west side of Featherly Park 110 Comment
  UCR44897  Solanum nigrum B. G. Pitzer, L. F. LaPre 1986-10-20 317 Orange City of Irvine, Drainage channel near intersection of Irvine Blvd. and Sand Canyon Avenue. 91 Comment
  CAS-BOT-BC156710  Solanum umbelliferum C. B. Wolf 1931-3-6 1862 Orange 1 mi. no. of base of Modjeska Grade, west slope of Santa Ana Mts. 304 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
  RSA0020579  Solanum umbelliferum P. Shirokawa 1998-5-15 41 Orange Cleveland National Forest- Trabuco Ranger District, 2.3 miles from Ortega Highway (State Highway 74) on North Main Divide Road 960 Comment
  RSA627525  Solanum umbelliferum Sandy Leatherman, Fred M. Roberts, B. Leatherman, Trish Smith 1998-5-22 25 Orange Black Star Canyon: Spur Rd. off of Black Star Canyon Rd. Area burned during spring 1998. 335 Comment
  RSA747637  Solanum umbelliferum var. glabrescens Fred M. Roberts, Lee Ann Carranza 2008-4-16 6916 Orange Dana Point: Dana Point Headlands, CNLM Preserve, near Strands Road Gate, 0.8km WNW Marine Institute, Dana Point Harbor. 71 Comment
  UCR131698  Solanum xanti C. B. Wolf 1931-3-6 01862 Orange Santa Ana Mtns., 1 mile north of base of Modjeska Grade, west slope of mtns. 305 Comment
  UCR166729  Solanum xanti Scott D. White, Jennifer H. Jones 2005-3-31 10856 Orange South Coast, City of Laguna Beach. 549 Nyes Place. Proposed home site on c. 0.5 acre. 91 Comment
  RSA0045319  Solanum xanti G. Jentges 1932-4-9 35 Orange Orange Park Acres. Comment
  IRVC15142  Solidago californica A. S. Boughey 1968-7-9 398 Orange Santa Ana mtns: upper Santiago Canyon. Peninsular Ranges Comment
  IRVC21389  Solidago californica A. S. Boughey 1968-7-9 409 Orange Santa Ana mtns: upper Santiago Canyon. Peninsular Ranges Comment
  POM50555  Solidago californica L. R. Abrams 1901-6-16 1851 Orange Trabuco Canyon Comment
  RSA801984  Solidago californica Minor Warne 1939-4-7 s.n. Orange Ladd Canyon Comment
  SEINET3119095 Image available Solidago confinis L. M. Booth 1932-12-26 1383 Orange Newport Lagoon Comment
  SD245291  Sonchus asper Robert Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49582 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74) Comment
  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
  UC537123  Sonchus oleraceus Lawrence M. Booth 1932-7-21 1297 Orange Anaheim Marsh Comment
  UCR237816  Sonchus oleraceus Mark A. Elvin 2003-2-2 2290 Orange South Coast, San Joaquin Marsh, UCI campus SSE of intersection of Jamboree Blvd. and Campus Dr. 2 Comment
  CAS-BOT-BC374662  Sonchus oleraceus Ira L. Wiggins 1965-11-6 20334 Orange West side of Atwood Comment
  UCD136210  Sonchus oleraceus Ira L. Wiggins 1966-3-5 20514 Orange 1/2 mile W of El Toro P.O. along Highway S-18. Comment
  RSA750063  Sorghum bicolor A. C. Sanders, Fred M. Roberts 2008-9-18 36066 Orange Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge 320 Comment
  UCR181151  Sorghum bicolor R. E. Riefner Jr. 2005-10-5 05- 710 Orange South Coast, Irvine, Irvine Blvd. at The Groves Rd. 84 Comment
  IRVC18904  Sorghum halepense Fred M. Roberts 1981-6-24 284 Orange San Juan Capistrano: 3.2km south of Saddleback College on Rancho Viejo Rd. southern coastal 42 Comment
  CLARK-A1528-5031  Spartina foliosa John C. Roos 1937-9-1 427 Orange Seal Beach Comment
  POM146217  Spartina foliosa F. M. Reed 1927-11-25 5676 Orange Anaheim Landing Comment
  POM262908  Spartina foliosa J. C. Roos 1937-9-1 427 Orange Seal Beach. Comment
  UCR2764  Spartina foliosa F. M. Reed 1927-11-23 5676 Orange South Coast, Anaheim Landing 1 Comment
  IRVC2458  Spartium junceum B. Newman 1965-3-28 s.n. Orange Trabuco Canyon. Santa Ana Mountains Comment
  UCR228775  Spartium junceum Dick Newell, Don Millar 2011-5-24 164 Orange Peninsular Range; Santa Ana Mtns., Silverado Canyon Rd. c. 1 mile above Blackstar Canyon Road 333 Comment
  RSA220991  Spartium junceum E. W. Lathrop 1966-4-6 6139 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  RSA659437  Spartium junceum P. Shirokawa 1998-5-7 13 Orange Cleveland National Forest- Trabuco Ranger District, 0.3 miles from Ortega Highway (State Highway 74) on North Main Divide Road. 808 Comment
  RSA696570  Spergula arvensis Elisabeth Norland 1929-3-16 s.n. Orange Costa Mesa. Comment
  UCR99892  Spergularia Scott D. White 1993-3-5 1123 Orange Tustin. Marine Air Corps Air Station: SE of Red Hill Ave and NE of Barranca 15 Comment
  RSA0097843  Spergularia macrotheca P. A. Munz 1918-5-5 2204 Orange Laguna Beach. Comment
  RSA0097845  Spergularia macrotheca E. R. Johnson 1927-6-10 76 Orange Bryant Ranch, near Long Beach. 15 Comment
  RSA0098428  Spergularia macrotheca var. macrotheca R. E. Riefner 1994-8-1 94 -567 Orange S end of San Clemente State Beach. Comment
  UCR237817  Spergularia marina Mark A. Elvin 2003-2-2 2289 Orange South Coast, San Joaquin Marsh, UCI campus SSE of intersection of Jamboree Blvd. and Campus Dr. 2 Comment
  RSA0098518  Spergularia marina D. L. Crawford 1916-7-26 s.n. Orange Aliso Canyon. Comment
  RSA0097293  Spergularia salina Keith E. Hoffmaster 1935-2-17 842 Orange Prob[ably] near Costa Mesa, at bluff by Santa Ana River. Comment
  PASA1277  Spergularia tenuis Joseph Andorfer Ewan 1931-7-31 Orange Smeltzer Comment
  UCR180304  Spergularia villosa Scott D. White, Amanda Duchardt 2003-5-1 9150 Orange Santa Ana Mountains, Slopes above the west side of Canada Gobernadora and adjacent small canyon to the west 122 Comment
  RSA0098709  Spergularia villosa L. M. Booth 1932-7-18 1266 A Orange Costa Mesa, inland from Newport Bay. 30 Comment
  RSA680  Stachys ajugoides J. T. Howell 1927-6-30 246 Orange Bryant Ranch near Long Beach. 15 Comment
  UCR191450  Stachys ajugoides A. C. Sanders, Fred M. Roberts 2008-4-8 34752 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, SSE of Santiago Reservoir on Loma Ridge Spur Rd., above Dripping Springs Loop Rd. 457 Comment
  UC537162  Stachys ajugoides var. ajugoides Lawrence M. Booth 1932-6-4 1146 Orange Newport Lagoon Comment
  UC284865  Stachys ajugoides var. rigida P. A. Munz 1923-9-7 7756 Orange trail from Holy Jim Canyon Santiago Peak; Santa Ana Mts. 1310 Comment
  UCR140794  Stachys rigida Robin G. Marushia 2004-5-4 007 Orange Southern Coast, Crystal Cove State Park, interior of El Moro Canyon, east side of canyon, utility pole turnout above riparian area crossing 183 Comment
  RSA542483  Stachys rigida subsp. quercetorum Fred M. Roberts, R. E. Riefner 1988-7-19 4115 Orange Santa Ana Mountains; Maple Springs Truck Trail, Upper Silverado Canyon, 1.9km N Modjeska Peak. 1128 Comment
  RSA798185  Stachys rigida subsp. quercetorum Robert F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49583 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74). Comment
  RSA0026254  Stachys rigida subsp. rigida Fred M. Roberts 2013-6-12 7796 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
  SEINET9330188  Stachys rigida var. quercetorum Unknown 2011-9-27 39913 Orange Orange Co., CA 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
  CAS-BOT-BC374781  Stebbinsoseris heterocarpa D. E. Bramlet 2008-4-4 4174 Orange Foothills Santa Ana Mtns: Ridgeline above Limestone Cyn (East Loma Ridge), 1.57km west of Limestone Cyn. & 795m E of Round Cyn. 533 Comment
  HSC22050  Stellaria media J. W. Johnson 1961-4-2 Orange Newport Beach, along Upper Newport Bay. Comment
  OBI5678  Stellaria media Carl B. Wolf 1931-3-6 1854 Orange Trabuco camp ground, Trabuco cyn, W slope of the Santa Ana Mts 610 Comment
  RSA528050  Stenotaphrum secundatum A. C. Sanders 1990-10-6 10191 Orange Newport Bay, North Star County Beach area on the SW end of the bay, ca. 2 km inland of Hwy 1 1 Comment
  RSA488125  Stephanomeria cichoriacea Fred M. Roberts 1985-7-26 2096 Orange Santa Ana Mts.: Main Divide Truck Trail, above Falcon Group Camp, 2.2 km ESE Los Pinos Peak 1057 Comment
  JEPS36878  Stephanomeria diegensis L. M. Booth 1933-10-18 Orange Newport Comment
  POM122552  Stephanomeria diegensis Marcus E. Jones 1924-8-26 s.n. Orange Newport. Comment
  SBBG42893  Stephanomeria diegensis L. D. Gottlieb 1968-8-14 6860 Orange St Hwy 74, immediately W of lower San Juan Cmpgrd 411 Comment
  UC1394144  Stephanomeria diegensis L. D. Gottlieb 1968-8-14 6860 Orange immediately w Lower San Juan Campground (on Route 74) 411 Comment
  UCD136245  Stephanomeria diegensis L. D. Gottlieb 1968-8-14 6860 Orange on Route 74, immediately west of Lower San Juan Campground. 411 Comment
  JEPS36892  Stephanomeria exigua subsp. coronaria L. M. Booth 1933-10-18 Orange Newport Comment
  HSC13367  Stipa pulchra C. L. Hitchcock 1966-3-15 24142 Orange Stearns Lease, 1.5 mi. E of Brea. Comment
  UCR192484  Stipa pulchra A. C. Sanders, Fred M. Roberts 2008-3-25 34512 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  SEINET10603936  Stipa pulchra LeRoy R. Abrams 1903-4-18 Abrams 3269 Orange Trabuco canon, Capistrano. Comment
  POM6313  Stuckenia pectinata L. T. Street, Williams 1919-5-4 2690 Orange Laguna Lakes. [now Big Laguna Lake, San Diego Co.] Comment
  IRVC25397  Stylocline gnaphalioides Fred M. Roberts 1987-4-3 3340 Orange San Joaquin Hills; Irvine; central Shady Canyon, 2.9km NE Signal Hill. Central coastal 107 Comment
  RSA0011014  Stylocline gnaphaloides Fred M. Roberts 2012-5-10 7570 Orange San Joaquin Hills: Buck Gully, south tributary, north slope Pelican hill, just north of Pelican Hills Drive, 0.7 km N Pelican Hill summit. 154 Comment
  CAS-BOT-BC402192  Styrax redivivus R. F. Thorne; C. W. Tilforth; E. W. Lathrop 1977-4-27 49686 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  POM3387  Styrax redivivus C. B. Bradshaw 1903-5-30 s.n. Orange Trabuco Canyon. Comment
  RSA171931  Styrax redivivus Robert F. Thorne 1963-7-26 32849 Orange Near Beek's Spring; Tin Mine Canyon; Trabuco District, Santa Ana Mountains, Cleveland National Forest. 716 Comment
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Apr 25 2011
  RSA514322  Styrax redivivus Reid Moran, Daniel I. Axelrod, B. Smart 1975-7-18 22599 Orange North slope of ridge, upper Trabuco Canyon. 900 Comment
  RSA5854  Suaeda calceoliformis C. B. Wolf 1932-6-28 3789 Orange Bryant Ranch, near fence., 100 ft. south of NW corner of NW 1/4 of S.E. 1/4 of sect 27. 9 Comment
  POM48004  Suaeda esteroa I. M. Johnston 1924-8-29 s.n. Orange 2.5 miles north of Balboa. Comment
  RSA12653  Suaeda esteroa C. B. Wolf 1934-7-29 6043 Orange Newport Bay Comment
  RSA531319  Suaeda esteroa A. C. Sanders 1990-10-6 10204 Orange Newport Bay, North Star County Beach area on the SW end of the bay, ca. 2 km inland of Highway 1. 1 Comment
  UCSB36525  Suaeda esteroa Ferren, Wayne; Whitmore, S. 1980-8-27 Orange Newport Backbay, along Backbay Drive; ca. 1.5 km. NE of Rt. 1, Newport Beach Comment
  CDA23533  Suaeda taxifolia G. Jackson 1974-1-15 Orange Sunset Aquatic Regional Park, Huntington Harbour. 0 Comment
  POM694  Suaeda taxifolia D. L. Crawford s.n. Orange Laguna Beach bluffs Comment
  RSA438590  Suaeda taxifolia Joseph A. Ewan 1932-7-29 7712 Orange Newport lagoon Comment
  SEINET187091  Suaeda taxifolia Allan C. Keller 1937-11-26 Orange One mile south of Huntington Beach on U.S. Highway Alternate 101. Comment
  UC1007086  Suaeda taxifolia Allan C. Keller 1937-11-26 Orange on U.S. Highway Alternate 101 one mi s Huntington Beach 1 Comment
  UC1007087  Suaeda taxifolia Allan C. Keller 1937-11-26 Orange Doheny Palisades Doheny Palisades (Highway 101) 6 Comment
  UCR157703  Suaeda taxifolia Adrian Wolf 1998-5-27 330 Orange South Coast, Newport Oil Fields, bluff adjacent to Pacific Coast Highway, c. 250 ft. from ocean, near entrance to oil fields; between Huntington Beach, Costa Mesa and Newport Beach, just south of the channelized mouth of the Santa Ana River 8 Comment
  UCSB44182  Suaeda taxifolia Henneman, J. 1977-5-21 Orange Newport Back Bay Comment
  UCSB48369  Suaeda taxifolia Roberts, Dar; Roberts, Fred 1982-4-19 Orange Newport Beach: Corona del Mar, Bayside Dr.; 3.0 km. SSW Corona del Mar High School; E of Balboa Island 3 Comment
  UCR231357  Symphoricarpos A. C. Sanders, Kent Beaman 2011-9-27 39909 Orange Peninsular Range; Santa Ana Mtns., Maple Springs Truck Trail, 3.4 km NNW (340 deg. ) of Santiago Peak 1088 Comment
  IRVC19706  Symphoricarpos mollis Karlin G. Marsh 1983-7-5 Orange Bonito Canyon Reservoir; open grassy field. Irvine Comment