Search Results — 2000 specimen records retrieved (1605 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
  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
  SEINET893685  Abronia maritima Norman C. Cooper 1942-1 888 Orange Balboa. Comment
  RSA461005  Abronia umbellata M. B. Dunkle 1933-4-9 3293 Orange Huntington Beach. Comment
Read comments
Jan 2 2015
  RSA461006  Abronia umbellata E. S. Spalding 1923-12-1 s.n. Orange Opposite San Juan Capistrano Comment
  RSA640716  Abronia umbellata Louis C. Wheeler 1931-8-17 s.n. Orange Balboa. Comment
  SBBG69894  Abronia umbellata M. N. Ackley 1928-9-22 716 Orange Sunset Beach 8 Comment
  JEPS61217  Abronia umbellata var. umbellata L. M. Booth 1932-5-25 1113 Orange Balboa Island; Newport Bay Comment
  SEINET7067537  Abronia villosa A. G. Vestal 1947-6-12 s.n. Orange Santa Ana River Wash northwest of Orange. Coordinate datum: NAD27. UTM Zone 11, 418667mE, 3739612mN. Comment
  UC536922  Abronia villosa Lawrence M. Booth 1932-7-30 1341 Orange 2 mi from ocean; Santa Ana River Comment
  RSA69967  Abronia villosa var. aurita F. W. Peirson 1924-8-29 5060 Orange Santa Ana Comment
  SEINET891576  Acacia baileyana R. J. Barr 1964-1 64 -590 Orange Roadside near Capistrano Beach Comment
  RSA0065574  Acacia decurrens var. dealbata Louis R. Klins 1949-2-12 s.n. Orange 1928 W. 17th Street, Santa Ana. 60 Comment
  RSA651416  Acacia longifolia Doug Bell 1949-2-12 s.n. Orange Garden Grove. 182 Comment
  RSA767264  Acacia redolens Scott D. White, Michael Honer 2004-5-17 10391 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-BC333254  Acer macrophyllum Le Roy Abrams 1901-6-15 1819 Orange South Fork Santiago Creek 914 Comment
  CAS-BOT-BC333256  Acer macrophyllum P. A. Munz; R. D. Harwood 1920-4-23 3730 Orange Santa Ana Mts., Silverado Canon 548 Comment
  JEPS42668  Acer macrophyllum John Thomas Howell 1927-7-26 2839 Orange Claymine Canyon Santa Ana Mts., Claymine Canyon 304 Comment
  RSA456  Acer macrophyllum J. T. Howell 1927-7-26 478 Orange Claymine Ca - on near Sierra Peak. 244 Comment
  RSA696762  Achillea millefolium C. H. Mueller 1932-5-30 s.n. Orange Corner Cleveland and Chapman Comment
  RSA548876  Achnatherum coronatum Fred M. Roberts, T. Sholars, B. Stechmeyer 1988-3-29 3886 Orange Santa Ana Mountains: Hot Springs Canyon, 1.3 km north Hwy 74 by road , 0.7 km NW Juan Rancho Survey Marker., UTM 3717900m N, 452700m E 274 Comment
  UCSB42219  Acmispon americanus Roos, John 1965-6-16 Orange Dana Point near Doheney Beach Comment
  UCR267188  Acmispon glaber var. glaber Fred M. Roberts 2010-3-12 7180 Orange Southeast Coast, DANA POINT HEADLANDS: Harbor Point Park, South of Green Lantern and west of Dana Point Harbor, c. 150 meters SE Interpretive Center 50 Comment
  UCR174184  Acourtia microcephala A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33021 Orange Peninsular Range; Santa Ana Mtns., San Juan Canyon, from Lower San Juan Picnic Area to c. 1 mile downstream, parallel to Hwy 74 and near Riverside Co. line 396 Comment
  UCR281525  Acourtia microcephala Mitch Provance 2017-6-9 617- 101 Orange Coyote Hills, North Fullerton, East side of Gilbert St., 0.5 miles ENE of intersection with Castlewood Dr. 124 Comment
  SD245240  Acourtia microcephala R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49626 Orange Santa Ana Mountains: San Juan Canyon, along Ortega Highway (74) across from San Juan Fire Station. Comment
  LA31221  Adenostoma fasciculatum David S. Verity; 1960-2-14 sn Orange one small area on ridge near summit of Temple Hills Dr. on E. slope of ridge, San Juaquin Hills behind Laguna Beach Comment
  UCR252214  Adenostoma fasciculatum Amanda C. Swanson 2013-4-21 24 Orange Peninsular Range; Santa Ana Mtns., hiking trail across from Tucker Wildlife Sanctuary, less than 0.1 mi. from trailhead 434 Comment
  UCR97813  Adenostoma fasciculatum Scott D. White 1997-3-28 4848 Orange Santa Ana Mountains, Above Modjeska Canyon, proposed water tank site. 488 Comment
  UCR182889  Adiantum capillus-veneris Dean Kelch 2006-12-9 06 .532 Orange Newport Bay, Back Bay Dr. between marsh and steep bluff 11 Comment
  UCR162341  Aeonium Robert DeRuff 1988-1 406 Orange Southern Coast, Newport Beach, Upper Newport Back Bay, bluff c. 0.25 mi N of Big Canyon 30 Comment
  RSA771712  Agave americana Robt. Allen, Richard S. Newell, Roger E. Reinke 2006-6-30 s.n. Orange Holy Jim Canyon Trail. Near a small parking area just below forest gate and trailhead. 597 Comment
  NY7051  Agoseris cinerea L. Abrams 1901-6-15 1816 Orange Santiago Peak trail. 914.4 Comment
  UCR228792  Agoseris retrorsa Dick Newell, Don Millar 2011-5-8 146 Orange Peninsular Range; Santa Ana Mtns., Maple Spring Rd., Cleveland National Forest 1173 Comment
  UCR242709  Agrostis Chris E. True 2013-5-2 s.n. Orange Bommer Canyon, NW of Aliso Viejo 137 Comment
  UCR193382  Agrostis pallens A. C. Sanders, Mitch Provance 2008-5-20 35389 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, mouth of Hangman Tree Canyon just above confluence with Santiago Creek Canyon, c. 1/2 mile below Modjeska Canyon confluence 366 Comment
  UCR219855  Agrostis pallens Fred M. Roberts 2008-6-3 7029 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, East Fork Rattlesnake Canyon, c. 2.6 km NE Rattlesnake Reservoir spillway and 2.4 km ENE Bee Peak 225 Comment
  UCR192983  Agrostis viridis A. C. Sanders, Fred M. Roberts 2008-6-17 35467 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Agustine staging area near Limestone Canyon Rd. gate at Santiago Cyn Rd. 260 Comment
  RSA366464  Allium haematochiton M. B. Dunkle 1933-3-5 3085 Orange San Juan Canyon. Comment
  JEPS56379  Allium praecox Alice King March 1908 Orange near Orange County Park Comment
  RSA751399  Allophyllum divaricatum R. E. Riefner Jr. 2007-6-11 07 -252 Orange Santa Ana Mts., Irvine Ranch Reserve, Fremont Canyon Conservation Easement, upper Fremont Canyon, Donaldson Ranch area. 389 Comment
  IRVC28639  Allophyllum glutinosum Mark A. Elvin, A. C. Sanders 2005-9-2 4494 Orange Mouth of Lion Cyn, just up stream from Lower San Juan Campground. Santa Ana Mtns 457 Comment
  RSA2074  Alnus rhombifolia C. B. Wolf 1931-3-6 1855 Orange Trabuco Canyon, 1.5 mile below Trabuco Camp Grounds, west slope of Santa Ana Mountains. 610 Comment
  RSA220966  Alnus rhombifolia E. W. Lathrop 1966-3-23 6100 Orange 4 miles northeast of Lake Irvine, Black Star Canyon, Cleveland National Forest, Trabuco District. Comment
  RSA5391  Alnus rhombifolia B. D. Stark 1932-12-30 1717 Orange Rancho Santa Ana. River bottom below Mexican houses. 122 Comment
  RSA696343  Alnus rhombifolia Minor Warne 1934-02 s.n. Orange Modjeska Canyon Comment
  UCR231346  Alnus rhombifolia A. C. Sanders, Kent Beaman 2011-9-27 39903 Orange Peninsular Range; Santa Ana Mtns., Maple Springs Truck Trail above Silverado, at major (dry) stream crossing, 3.95 km NNW (347 deg. ) of Santiago Peak 903 Comment
  IRVC17987  Amaranthus blitoides A. B. McGee 1980-9-9 Orange San Diego Creek Channel, adjacent to San Joaquin Freshwater Marsh. Irvine Comment
  RSA542440  Amaranthus blitoides Fred M. Roberts 1988-10-21 4162 Orange Irvine: Alton Parkway at corner of Jeffrey Rd., 1.5km NNE French Survey Mark. 35 Comment
  RSA724062  Amaranthus blitum subsp. emarginatus R. E. Riefner 2004-8-8 4 -370 Orange City of Anaheim, Santa River bottom near 57-Freeway between Orangewood St. and Chapman Ave. 41 Comment
  CLARK-A1528-1399  Amaranthus hybridus Alfred R. Roos 1937-12-2 Orange Santa Ana Comment
  POM201880  Amaranthus hybridus L. M. Booth 1932-7-25 s.n. Orange Santa Ana River, 1 1/2 miles from ocean. Comment
  UCR111749  Amaranthus retroflexus G. S. Nuessly 1980-11-27 s.n. Orange South Coast, south side of East Santiago Canyon Road, 0.25 mi north [west] of North Windes Drive 137 Comment
  RSA404566  Amaranthus retroflexus Albert J. Perkins 1912-10-15 s.n. Orange Peatlands near head Newport Bay. Comment
  POM5983  Amblyopappus pusillus D. L. Crawford 1916-5-5 s.n. Orange Laguna Beach. Comment
  SEINET2028644 Image available Amblyopappus pusillus Lawrence M. Booth 1932-5-12 1007 Orange Newport Bay Comment
  RSA610217  Amblyopappus pusillus Fred M. Roberts, Julie Vanderwier 1997-4-29 5014 Orange Bolsa Chica Salt Marsh; (US Fish & Wildlife Service cell 60) west of old oil field, 1.1 km. S Chica Survey Mark. 0 Comment
  CAS-BOT-BC13608  Ambrosia acanthicarpa John Thomas Howell 1927-10-22 3164 Orange In Santa Ana River bottom, Santa Ana Canyon 152 Comment
  RSA184184  Ambrosia acanthicarpa I. L. Wiggins 1965-11-6 20351 Orange Near well #14, Kramer Oil Estates, near end of county road to Rancho Santa Ana. Comment
  RSA699676  Ambrosia acanthicarpa Keith E. Hoffmaster 1934-1 s.n. Orange Near Santa Ana. Comment
  RSA854  Ambrosia acanthicarpa J. T. Howell 1927-10-22 762 Orange Near Eastern Boundary, Rancho Santa Ana. 152 Comment
  UCR109969  Ambrosia chamissonis R. D. Goeden, Don W. Ricker 1970-4-29 s.n. Orange South Coast, Newport Beach, NW edge of town between Seashore Dr., Neptune Ave., 56th and 58th Streets 2 Comment
  UCSB10369  Ambrosia chamissonis Haller, Norman 1953-4-25 Orange U.S. 101, 2 miles So. of Huntington Beach Comment
  RSA4814  Ambrosia chamissonis D. L. Crawford 1928-07 s.n. Orange Beach Comment
  RSA696740  Ambrosia chamissonis var. chamissonis R. H. McArthur 1934-4-7 s.n. Orange Near outlet of Santa Ana River. Comment
  UCR281837  Ambrosia confertiflora R. E. Riefner Jr. 2017-8-23 17- 424 Orange South Coast, city of Huntington Beach, Harriet M. Wieder Regional Park, east of Pacific Coast Hwy, north side of Seapoint Street, opposite Cherryhill Drive Comment
  SD241729  Ambrosia psilostachya T. B. Salvato 2010-9-27 5121 Orange South Coast: Dana Point Headlands, Harbor Point Park, south of Scenic Drive and Cover Road, beyond the end of Green Lantern Street, overlooking Dana Point Harbor (Dana Point 7.5'Q) 60 Comment
  UCR239931  Ambrosia psilostachya O. F. Clarke 2004-6-23 s.n. Orange South Coast, Newport Back Bay, just south of the Muth Interpretive Center 15 Comment
  CAS-BOT-BC45065  Ambrosia psilostachya Carl B. Wolf 1932-7-7 3841 Orange Bryant Ranch, Bixby Ave, south edge of field 2/10 mi W of Hansen Rd 152 Comment
  POM4802  Ambrosia psilostachya D. L. Crawford 1929-07 s.n. Orange Coast hills and shore. Comment
  IRVC25169  Ambrosia psilostachya var. californica Fred M. Roberts, Brenda Fugle 1986-10-1 3146 Orange Laguna Hills; creek channel along Cabot Rd. ca. 1.0km N Pacific Park Pkwy. Southern Coastal 99 Comment
  POM12449  Ammannia robusta P. A. Munz 1922-9-2 6353 Orange Ponds in Laguna Canyon 46 Comment
  CAS-BOT-BC180617  Amorpha californica var. californica A. M. White 1974-6-1 74 -671 Orange N. of Silverado Canyon, ~20 mi. E. of Santa Ana 1005 Comment
  UC1137526  Amorpha californica var. californica A. Lewis 1934-5-1 419 Orange Trabuco Canyon Cleveland National Forest, Elsinore Quadrangle 1341 Comment
  RSA550592  Amorpha fruticosa Fred M. Roberts 1989-4-26 4322 Orange Lower Blind Canyon near mouth, 9.2 km SW Sierra Peak, 1.0 km N Irvine Lake spillway. 207 Comment
  UC174984  Amsinckia C. F. Baker 4095 Orange Anaheim; Pacific Coast Comment
  CAS-BOT-BC222309  Amsinckia douglasiana C. B. Wolf 1931-3-6 1864 Orange East side of Orange County Park 152 Comment
  RSA620  Amsinckia intermedia J. T. Howell 1928-2-25 833 Orange Near Bee Canyon, Rancho Santa Ana. 152 Comment
  UC1377784  Amsinckia intermedia John Ingram 1960-3-29 257 Orange 3 mi above O'Neill Park; Trabuco Canyon Comment
  RSA0016948  Amsinckia intermedia S. A. W. 1971-4-22 19 -D Orange Carbon Canyon Road (St. Hwy. 142) at jct. with Co. dump rd. 1 mi. N Imperial Hwy. 183 Comment
  RSA0089442  Amsinckia intermedia Helen D. Geis 1902-03 s.n. Orange Santiago Creek Canyon. Comment
  RSA0089445  Amsinckia intermedia C. B. Wolf 1931-3-6 1864 Orange East side of Orange Co. Park. 152 Comment
  IRVC205  Amsinckia menziesii var. intermedia McGuire 1965-4-3 Orange Corona del Mar High School Newport Beach Comment
  IRVC213  Amsinckia menziesii var. intermedia D. Frees 1965-3-27 Orange Newport Beach; East Bluffs. Southern Coastal Comment
  UCR190990  Anagallis arvensis A. C. Sanders, Fred M. Roberts 2008-4-22 35010 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
  POM201809  Anagallis arvensis L. M. Booth 1932-6-28 s.n. Orange Bolsas Marsh. Comment
  CDA5480  Anagallis arvensis subsp. arvensis J. McNeill 1969-4-17 3069 Orange U.C. Irvine Campus. Comment
  RSA593764  Ancistrocarphus filagineus Steve Boyd 1996-4-14 8547 Orange Santa Ana Mountains, along Main Divide Road, ca 2.4 road miles south of Sierra Peak in upper watershed of Fremont Canyon, just west of the divide with Mabey Canyon. 841 Comment
  POM1029  Andropogon glomeratus C. B. Bradshaw s.n. Orange San Joaquin Ranch near Laguna. Comment
  RSA652673  Anemopsis californica R. Spence 1974-8-13 s.n. Orange Upper Newport Bay. Hillsides around Bay. Comment
  UCSB48026  Anemopsis californica Roberts, Fred 1980-5-4 Orange Mission Viejo: along Santa Fe Railroad and Camino Capistrano, 1.7km N Crown Valley Parkway; 1.1km S BM 316 49 Comment
  IRVC7985  Anthemis cotula T. W. Mulroy 1973-5-31 1901 Orange near Sand Canyon Reservoir. San Joaquin Hills Comment
  RSA734807  Anthriscus caucalis A. C. Sanders, Fred M. Roberts 2008-5-6 35255 Orange Lomas de Santiago, slope SE of road junction along ridge road, near head of Agua Chinon Canyon, 2.4 miles north of El Toro 470 Comment
  RSA732279  Antirrhinum nuttallianum A. C. Sanders 2008-4-29 35135 Orange Lomas de Santiago, western end of Loma Ridge on road to sheriff's training facility, c. 1.5 mi. SW of Santiago Reservoir. 335 Comment
  RSA734655  Antirrhinum nuttallianum A. C. Sanders, Fred M. Roberts, A. O'Neal, D. E. Bramlet 2008-5-9 35315 Orange Weir Canyon, along fire line/bulldozer cut, c. 1.5 mi. east of Walnut Cyn Reservoir. 346 Comment
  UCR274178  Antirrhinum nuttallianum Dick Newell, Don Millar, Nicole Kahal 2015-6-9 409 Orange Peninsular Range; Santa Ana Mtns., foothills west of Black Star Canyon Road, at the end of the service road going to Edison's tower, 2/10 mile south of Lake View Rd. off State Spur 577 Comment
  RSA542506  Antirrhinum nuttallianum subsp. nuttallianum Fred M. Roberts 1987-4-28 3393 Orange IRVINE: San Joanuin Hills, lateral to Upper Sand CAnyon, 2.3 km SE French Hill. 107 Comment
  RSA690979  Antirrhinum nuttallianum subsp. subsessile Scott D. White, Michael Honer 2003-5-29 9431 Orange Santa Ana Mountain Foothills: Rancho Mission Viejo. Steep, gen. south-facing slopes above trib. to Trampas Canyon, ca. 0.6 air mi. S of Ortega hwy and ca. ca. 0.5 mi west of Trampas Cyn. 122 Comment
  POM354883  Antirrhinum nuttallianum subsp. subsessile Thekla Mohr 1917-04 s.n. Orange Laguna. Comment
Read comments
Nov 25 2014
  RSA699125  Apiastrum angustifolium J. R. Bruff 1927-3-16 22 Orange Newport Bluff Comment
  UCSB52904  Apiastrum angustifolium Roberts, Fred 1983-5-4 Orange Laguna Beach; upper Rancho Laguna Canyon, 1.7 km. SSW Top of the World School; 1.4 km. ENE Cactus Point 200 Comment
  POM201612  Apium graveolens L. M. Booth 1932-6-7 1158 Orange Newport Lagoon. Comment
  POM3324  Apium graveolens D. L. Crawford 1916-7-26 s.n. Orange Aliso Canyon Comment
  RSA0061174  Aralia californica Robt. Allen 2007-8-11 s.n. Orange Santa Ana Mountains region: Silverado Canyon, Big Cone Springs. Along Maple Springs Road (5S04), 4.6 road miles N of Forest Gate. East side of roadway. 1099 Comment
  RSA767  Arctium lappa J. T. Howell 1927-6-30 253 Orange Bryant Ranch near Long Beach. 15 Comment
  SEINET10874387  Arctostaphylos edmundsii James S. Miller 2001-12-15 Miller 10649 Orange Rancho Santa Ana Botanic Garden, Santa Ana, CA. Comment
  UCR282327  Arctostaphylos glandulosa A. C. Sanders, Yi Huang 2017-3-3 42701 Orange Peninsular Range; Santa Ana Mtns., North Main Divide Road, 3.5 km north of Hwy 74 960 Comment
  POM367271  Arctostaphylos glandulosa subsp. glandulosa Christopher Davidson 1977-5-18 5602 Orange Santa Ana Mts. Cleveland Nat. Forest. Pleasants Peak (on Orange-Riverside Co. line). 1220 Comment
  UC1137200  Arctostaphylos glandulosa subsp. zacaensis Willis E. Pequegnat 1940-4-13 Orange Modjeska Springs Cleveland National Forest, Corona Quadrangle, Santa Ana Mts. 457 Comment
  SEINET10449243  Arctostaphylos glauca James S. Miller 2001-12-15 Miller 10651 Orange Rancho Santa Ana Botanic Garden, Santa Ana, CA. Comment
Read comments
Jan 17 2020
  RSA303426  Arctostaphylos glauca var. glauca J. R. Shevock 1970-1-21 612 Orange Modjeska Cyn. 305 Comment
  CAS-BOT-BC334498  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
  SEINET5585509  Arctotheca prostrata R. E. Riefner Jr. 2013-1 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
  RSA708236  Arrhenatherum elatius Fred M. Roberts, Robert L. Allen, Chris Barnhill, Nancy Hatfield 2005-5-30 6235 Orange Modjeska Peak, west slope along summit road, 0.15km by air W summit. 1613 Comment
  UC537020  Artemisia biennis Lawrence M. Booth 1932-7-4 1250 Orange Newport Lagoon Comment
  CAS-BOT-BC90186  Artemisia californica Marcus E. Jones 1930-3-3 26497 Orange Santa Ana Mountains Comment
  CAS-BOT-BC90188  Artemisia californica Leila M. Shultz 1980-5-2 4040 Orange foothills south of Diamond Bar 213 Comment
  CLARK-A1528-5239  Artemisia californica John C. Roos 1937-8-31 2348 Orange San Clemente Comment
  UCR210051  Artemisia californica A. C. Sanders, Fred M. Roberts, Jutta Burger 2009-10-21 37191 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hangmans Tree Canyon 379 Comment
  CAS-BOT-BC90267  Artemisia douglasiana John Thomas Howell 1927-8-13 2989 Orange Santa Ana River bottom, Santa Ana Canyon 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
  UC971735  Artemisia dracunculus L. M. Booth 1932-7-4 1242 Orange Newport Bay Comment
  POM704  Arthrocnemum subterminale I. M. Johnston 1918-9-3 2152 Orange Laguna Beach. 6 Comment
  CDA23125  Arundo donax Mark A. Elvin, D. G. Kelch 2006-12-9 5310 Orange Southern Coastal; Irvine; San Diego Creek, edge of San Joaquin Marsh, beside University Drive, between Campus Drive and Highway 73. Comment
  RSA788913  Arundo donax Fred M. Roberts 2008-9-17 7099 Orange Peninsular Ranges: Yorba Linda: Santa Ana River Canyon, Santa Ana River, 0.7 km W Gypsum Cyn. Rd. bridge, south of La Palma Ave. 107 Comment
  RSA549704  Asclepias californica Terry J. O Brien 1992-5-23 1204 Orange Cleveland National Forest, trail S of Blue Jay Campgrounds. 1037 Comment
  SD240828  Asclepias curassavica R. E. Riefner Jr. 2011-8-19 11 100 Orange City of Laguna Beach, bluff area west of West Street and Pacific Coast Highway. 3 Comment
  RSA0104747  Asclepias eriocarpa A. C. Sanders, Fred M. Roberts 2008-6-17 35519 Orange Middle section of Weir Canyon, SSE of Walnut Canyon Reservoir. 225 Comment
  RSA696499  Asclepias fascicularis Keith E. Hoffmaster 1934-7-15 115 Orange Near Santa Ana Comment
  SEINET179443  Asclepias fascicularis L. M. Booth 1932-7-21 1291 Orange Anaheim Meadows. Comment
  IRVC12865  Asparagus plumosus B. T. Gittins 1964-4-15 390 Orange Costa Mesa, 1613 Sandalwood. Comment
  RSA93352  Aster bernardinus F. W. Peirson 1924-8-29 5065 Orange roadside 4 miles south of Santa Ana. Comment
  PASA1804  Aster exilis Frank W. Peirson 1919-11-8 Orange Aliso Creek at Tie Canyon, San Gabriel Mts. Comment
  IRVC25156  Aster subulatus var. ligulatus Fred M. Roberts 1986-9-3 3129 Orange adjacent to Anaheim, between Yorba Linda Regional Park and Imperial Hwy, Santa Ana River 88 Comment
  POM202111  Aster subulatus var. ligulatus L. M. Booth 1932-8-5 1356 Orange Bolsas Marsh. Comment
  RSA784  Aster subulatus var. ligulatus J. T. Howell 1927-9-24 750 Orange Santa Ana River Bottom, Rancho Santa Ana 152 Comment
  RSA5862  Aster subulatus var. ligulatus C. B. Wolf 1932-9-16 4114 Orange San Gabriel River, bordering Los Alamitos Bay 2 Comment
  CAS-BOT-BC180453  Astragalus brauntonii B. D. Stark 1933-6-1 4997 Orange Santa Ana Mts., No. slopes of Sierra Peak Comment
  RSA443829  Astragalus brauntonii Gordon Marsh, K. G. Marsh 1978-5-20 s.n. Orange Coal Canyon, along Coal Creek. Comment
  UCR224310  Astragalus brauntonii Justin M. Wood 2010-5-12 1686 Orange Santa Ana Canyon, Santa Ana River floodplain, 0.25 mi north of Coal Canyon Wildlife Corridor, west of Green River Golf Course on bluff south of the river 122 Comment
  RSA735969  Astragalus didymocarpus var. didymocarpus Scott D. White, Justin M. Wood 2008-4-21 11904 Orange Chino Hills: Chino Hills State Park, N of 91 freeway, above Yorba Linda. 366 Comment
  UC1929556  Astragalus didymocarpus var. didymocarpus Scott D. White, Justin Wood 2008-4-21 11904 Orange Chino Hills: Chino Hill State Park, N of 91 freeway, above Yorba Linda. Comment
  SD152863  Astragalus gambelianus Steve Boyd, Tim Ross, etc 1992-5-20 7458 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness area. Western edge of the wilderness in Lucas Canyon along stream 299 Comment
  UCR26993  Astragalus gambelianus E. W. Lathrop 1966-3-23 6102 Orange Santa Ana Mtns, Cleveland National Forest, Trabuco District. 4 mi. NE of Lake Irvine, Black Star Canyon Comment
  RSA651494  Astragalus gambelianus D. E. Bramlet 2000-4-21 2989 Orange Exposed terraces west of Blind Cyn. and North of Irvine Park. The site is 1.5 km west of Blind Canyon and 76m north of Irvine Park. This locality is 122m southwest of the MWD access road. 226 Comment
  RSA699499  Astragalus nigrescens Anonymous s.n. Orange Orange County park Comment
  UCR230843  Astragalus trichopodus Dick Newell, Don Millar 2011-3-24 094 Orange South Coast, Huntington Beach, just south of Weider Park, 1.2 mile NE of Seapoint and Pacific Coast Hwy, slope overlooking Bolsa Chica 6 Comment
  CAS-BOT-BC194065  Astragalus trichopodus var. lonchus C. B. Wolf 1931-3-6 1860 Orange 1 1/2 miles below Trabuco Camp Ground, Trabuco Canyon, west slope Santa Ana Mts. 548 Comment
  RSA2991  Astragalus trichopodus var. lonchus C. B. Wolf 1931-3-3 s.n Orange Botany garden. (RSA?) Comment
  IRVC29880  Atriplex Mark A. Elvin, D. Kelch 2006-12-9 5309 Orange Newport Backbay; Big Canyon, lower end. Southern Coastal 3 Comment
  RSA737477  Atriplex R. E. Riefner 2007-10-26 7 -453 Orange City of Laguna Niguel, Laguna Niguel Regional Park, Sulphur Creek Reservoir, near La Paz Rd. and Kings Rd. 62 Comment
  UC1543167  Atriplex Donald G. Nelson 1935-6-28 339 Orange Fullerton, dry roadside on S. Gilbert Ave. Comment
  SBBG132289  Atriplex amnicola R. E. Riefner Jr. 2006-4-17 06 -155 Orange upper Newport Bay, near Bayview Wy and Bayview Pl 6 Comment
  UCR203904  Atriplex amnicola R. E. Riefner Jr. 2008-5-25 08- 118 Orange South Coast, San Clemente, vicinity of Camino de Los Mares and Calle Nuevo 45 Comment
  CDA2883  Atriplex amnicola R. E. Riefner Jr. 2006-8-6 06 -381 Orange City of Newport Beach, Newport Bay, Big Canyon Creek drainage near Back Bay Drive. 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
  RSA737242  Atriplex amnicola R. E. Riefner 2005-9-16 05 -666 Orange Upper Newport Bay, E of Bayside Dr. at confluence with Big Canyon. 6 Comment
  UC1930115  Atriplex amnicola R. E. Riefner Jr. 2008-5-25 08 -118 Orange City of San Clemente, vicinity of Camino de Los Mares and Calle Nuevo. Comment
  RSA696737  Atriplex argentea subsp. expansa J. R. Bruff 1930-10-19 s.n. Orange Delhi Rd. Comment
  HSC25118  Atriplex californica James Henrickson 1970-9-5 5344 Orange 2 mi. NW of Huntington Beach, in Bolsa Chica Salt Marsh along Pacific Coast Hwy., along inner Bolsa Bay. 0 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
  UC1543080  Atriplex californica Donald G. Nelson 1935-6-27 327 Orange on bluffs facing ocean beaches s Corona del Mar (s of mouth of Newport Bay); s of Corona del Mar, s of mouth of Newport Bay Comment
  RSA542649  Atriplex californica Fred M. Roberts 1988-10-12 4159 Orange San Clemente State Park: c.a. 0.2 km SE end of Ave. California along Santa Fe RR. 3 Comment
  CHSC26531  Atriplex canescens James Henrickson 1970-7-24 5018 Orange 3 miles NW of Huntington Beach on sandy 'Rabbit' Island in Bolsa Chico Salt Marsh near Inner Bolsa Bay. At south end of sand area. 0 Comment
  POM201813  Atriplex canescens L. M. Booth 1932-7-19 1274 Orange Bolsas Marsh. Comment
  POM629  Atriplex canescens D. L. Crawford 1928-07 s.n. Orange Abalone Pt., south Comment
  UCD97302  Atriplex canescens A. C. Sanders 1990-10-6 10193 Orange Newport Bay, North Star County Beach area on the SW end of the bay, 2 km inland of Hwy. 1. 1 Comment
  IRVC24454  Atriplex canescens subsp. canescens Fred M. Roberts 1985-11-20 2560 Orange Newport Back Bay, near Camp Survey Mark, Newport Beach 2 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
  IRVC25202  Atriplex davidsonii Fred M. Roberts 1986-11-4 3201 Orange Anaheim Bay, north of Hog Island, Seal Beach Naval Weapons Station 0 Comment
  SBBG132292  Atriplex glauca R. E. Riefner Jr. 2006-3-19 06 -52 Orange near Avocado Ave and San Nicolas Dr, W of MacArthur Blvd; Newport Beach 77 Comment
  SBBG133612  Atriplex glauca R. E. Riefner Jr. 2005-12-31 05 -784 Orange ca. 0.5 mi N of Alton Pkwy on E side of SR-241; Lake Forest 230 Comment
  IRVC22418  Atriplex glauca Karlin G. Marsh 1985-12-18 Orange along Niguel Rd. at Salt Creek crossing, Laguna Niguel 60 Comment
  RSA743559  Atriplex glauca R. E. Riefner 2002-5-4 2 -88 Orange City of Newport Beach, Upper Newport Bay, general vicinity of Bayview Wy. and Bayview Pl. 7 Comment
  RSA743662  Atriplex glauca R. E. Riefner 2006-6-30 6 -334 Orange City of Rancho Santa Margarita, vicinity of Towne Center Dr. and Alton Pkwy. 291 Comment
  UCD97423  Atriplex hortensis B. A. Madson 1938-8-31 s.n. Orange Orange County. Comment
  CAS-BOT-BC180906  Atriplex pacifica I. M. Johnston 1918-5-4 1931 Orange Laguna Beach Comment
  UC219363  Atriplex pacifica D. L. Crawford 1916-5-5 Orange Laguna Beach Laguna Beach (bluffs along shore, Southern California) Comment
  RSA689538  Atriplex prostrata R. E. Riefner 2003-8-31 3 -340 Orange Costa Mesa, Talbert Regional Park, Discovery Walk Road and Balboa Avenue. 12 Comment
  UCR128136  Atriplex rhagodioides Roger E. Reinke 2003-2-18 s.n. Orange South Coast, Newport Back Bay, Big Canyon 30 Comment
  CLARK-A1528-980  Atriplex semibaccata Patricia A. Andrews 1975-6-26 5924 Orange Capistrano Bay Beach 9 Comment
  UC1714443  Atriplex semibaccata P. A. Munz 1934-3-26 13136 Orange edge of salt marsh Newport Beach Newport Beach 4 Comment
  POM279024  Atriplex semibaccata Grant D. Brown 1949-10-9 401 Orange 3 mi. N of Corona Del Mar on road to Santa Ana. 6 Comment
  UCR158034  Atriplex serenana Adrian Wolf 1998-7-1 404 Orange South Coast, Peters Canyon Channel, east of channel near Harvard Ballfield, between Harvard Ave. & creek, south of Warner Ave. to Barranca 15 Comment
  RSA5868  Atriplex serenana C. B. Wolf 1932-9-13 4018 Orange Bryant Ranch. 3/10 miles W of Los Alamitos Blvd.700 ft. south of Bryant Ave., (800 ft. east & 700 ft. south of NW corner of SW 1/4 sec. 30 T4S R11W) 7 Comment
  UCR208060  Atriplex suberecta R. E. Riefner Jr. 1999-5-22 99- 292 Orange South Coast, city of Dana Point, west of Pacific Coast Hwy, vicinity of Salt Creek Park and Ritz Carlton Hotel 15 Comment
  CAS-BOT-BC146059  Avena barbata Ira L. Wiggins 1966-3-16 20529 Orange Roadside near entrance to Firestone Boy Scouts Reservation. Comment
  UC1130900  Avena barbata A. Lewis Apr 1934 395 Orange San Joaquin Hills Corona Quadrangle Comment
  POM202370  Avena barbata L. M. Booth 1932-5-12 1040 Orange Newport Bay. Comment
  RSA40  Avena barbata J. T. Howell 1927-6-17 166 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA697311  Avena fatua Keith E. Hoffmaster 1936-4-14 s.n. Orange Santa Ana Comment
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Nov 20 2011
  UCR102010  Avena fatua B. G. Pitzer 1997-3-25 3003 Orange San Joaquin Hills, Crystal Cove State Park, Pelican Point Area, grassland between Pacific Coast Hwy and the bike trail 30 Comment
  IRVC20498  Azolla filiculoides Fred M. Roberts, M. L. Polek 1983-11-16 1149 Orange Upper Newport Back Bay, near Bayside Dr., 1.0km SSW Bayview School, 3.0km W UCI campus center, Newport Beach 2 Comment
  UCR207787  Azolla filiculoides O. F. Clarke 2004-8-23 s.n. Orange Santa Ana River Valley, Yorba Linda, Yorba Regional Park, Santa Ana River bank near intersection of E. La Palma Ave. and Fairmont Blvd. 91 Comment
  UCSB52947  Azolla filiculoides Roberts, Fred; Polek, M. 1983-11-16 Orange Newport Beach; upper Newport Back Bay near Back Bay Drive, 3.0 km. W UCI campus center 2 Comment
  IRVC6594  Baccharis douglasii Charles W. Sexton 1972-6-17 Orange Bolsa Chica salt marsh southern coastal 0 Comment
  CHSC35829  Baccharis emoryi James Henrickson 1972-10-21 8047 Orange Eastern Anaheim, 2 blocks E. of Imperial Hwy. along La Palma Ave, just N of Santa Ana River. 60 Comment
  IRVC18080  Baccharis emoryi Gordon A. Marsh 1980-10-24 Orange Irvine: San Joaquin Frreshwater Marsh, south end, earth dam, pond 4. southern coastal Comment
  IRVC25196  Baccharis emoryi Fred M. Roberts, Robert Fisher 1986-10-28 3179 Orange Main Divide Truck Trail Extension, 2.3km E Los Pinos Peak, in seep at base of south-facing road cut. Santa Ana Mountains 1030 Comment
  LA37359  Baccharis emoryi David S. Verity; Fred Lang 1972-7-14 sn Orange hills behind South Laguna, at the top of Pacific Island Drive Comment
  RSA542423  Baccharis emoryi Robb Hamilton 1989-7-31 2 Orange Newport Beach: just W of Newprot Blvd, along Pacific Coast Hwy 5m 5 Comment
  SDSU6382  Baccharis emoryi D. F. Howe 1945-10-20 1353 Orange Santa Ana River between Orange and Corona. Comment
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Jan 24 2013
  RSA0036017  Baccharis emoryi Robert F. Thorne 1977-11-21 50806 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs Comment
  UCR112095  Baccharis glutinosa A. C. Sanders, D. Malueg, K. D. Jones 2000-4-19 23336 Orange Pacific Coast, Bolsa Chica Lagoon, along dirt roads in oil field, east of Hwy 1, east of Bolsa Chica St. 11 Comment
  SD135168  Baccharis glutinosa Brian Fink 1992-10-7 Orange Huntington Beach Comment
  RSA0008326  Baccharis malibuensis R. E. Riefner, Adrian Wolf 2000-8-23 20 -732 Orange NCCP North Ranch Policy Plan Area. Fremont Canyon: N. of Santiago Creek & immediately S. of major stream fork 305 Comment
  RSA0008327  Baccharis malibuensis R. E. Riefner Jr. 2008-6-25 08 -175 Orange Santa Ana Mts., Irvine Ranch Reserve, Fremont Canyon Conservation Easement, east Fremont Canyon, Black Star SCE Rd. 483 Comment
  RSA741699  Baccharis malibuensis R. E. Riefner Jr. 2008-7-17 08 -239 Orange Santa Ana Mts., Irvine Ranch Reserve, Fremont Canyon Conservation Easement, east Fremont Canyon, Black Star SCE Rd. 574 Comment
  CAS-BOT-BC99446  Baccharis pilularis B. Pitzer; T. Tennant 1997-11-8 3374 Orange Crystal Cove State Park: Pelican Point Area, grassland area between Pacific Coast Hwy & the bike trail 30 Comment
  RSA613760  Baccharis pilularis B. Pitzer, T. Tennant 1997-11-8 3376 Orange Crystal Cove State Park, Pelican Point Area, grassland area between Pacific Coast Hwy and the bike trail. 30 Comment
  RSA731920  Baccharis pilularis Fred M. Roberts, Sandy Leatherman 2007-11-27 6659 Orange Anaheim: Santa Ana River, Santa Ana Canyon, just west of Horseshoe Bend on S side of E La Palma Ave., about 0.3km E Weir Cyn. Rd. bridge. 100 Comment
  SD253901  Baccharis pilularis Jim Riley 2013-12-10 134 Orange San Clemente area; 0.29 miles E intersection Avenida Pico and Camino La Pedriza; just N San Diego County line 74 Comment
  IRVC21308  Baccharis pilularis subsp. consanguinea Fred M. Roberts 1983-12-9 1152 Orange UCI Ecological Preserve, 0.8km SSW campus center, Irvine 70 Comment
  IRVC29726  Baccharis salicifolia Mark A. Elvin, Barry S. Nerhus 2006-11-4 5257 Orange Huntington Beach; 1.5 km SW of Wintersburg, SW of jct Slater and Goldenwest; Shipley Nature Center. Southern Coastal 1 Comment
  RSA184139  Baccharis salicifolia I. L. Wiggins 1966-2-4 20418 Orange Watercourse near mouth of Trabuco Canyon.Waterfront St. near Mission Rock Terminal, San Francisco Comment
  SD220034  Baccharis salicifolia Mark A. Elvin 2004-5-2 3414 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7 (air) NNW UC Irvine campus center. 3 Comment
  SEINET899257  Baccharis salicifolia L. Freeman 1963-1 142 Orange Diamond Bar Ranch in Brea Canyon, Santa Ana Mountains. 244 Comment
  JEPS21243  Baccharis salicifolia subsp. salicifolia L. M. Booth 1933-10-18 Orange Newport Beach Comment
  UCD129479  Baccharis salicifolia subsp. salicifolia B. Pitzer 1996-4-30 2769 Orange Upper Newport Bay: California Department Fish and Game Ecological Reserve, off (W of) Jamboree Rd. 6 Comment
  UCR66989  Baccharis salicina A. C. Sanders 1990-10-6 10190 Orange South Coast, Newport Back Bay, SW side at North Star County Beach, SW end of the bay, c. 2 km inland from Hwy 1/ Pacific Coast Hwy 3 Comment
  SD247503  Bacopa monnieri R. E. Riefner Jr. 2012-7-1 12 295 Orange City of Mission Viejo, Oso Creek, ca 1.3 mi N of Paseo De Colinas Ave on Camino Capistrano Ave. 88 Comment
  SEINET7003043  Baeria chrysostoma Wanda P. Vestal, A. G. Vestal 1955-3-24 3451 C Orange Bank along road, Trabuco Canyon, about 5 miles east of El Toro. Comment
  RSA0025299  Bahiopsis laciniata R. E. Riefner Jr. 2013-4-5 13 -56 Orange Anaheim Hills, vicinity of Hidden Canyon Rd. at Avenue de Santiago. 305 Comment
  RSA615541  Bahiopsis laciniata Fred M. Roberts 1997-10-28 5052 Orange Lomas de Santiago: mouth of Silverado Canyon, along Black Star Canyon Road, 0.1 km N jct. Silverado Canyon rd., 4.8 km NNW Bolero Lookout. 305 Comment
  CDA13500  Basella alba L. Pope 1997-11-2 s.n. Orange Homewood Ave., Buena Park. 0 Comment
  CAS-BOT-BC75517  Batis maritima Peter H. Raven 1957-9-28 11389 Orange At north limits of Surfside. Comment
  RSA303573  Batis maritima J. R. Shevock 1972-9-27 2291 Orange Newport Back Bay. 2 Comment
  RSA30658  Batis maritima L. C. Wheeler 1932-6-25 858 Orange Newport Bay. 3 Comment
  POM212046  Bebbia juncea C. B. Wolf 1931-7-25 2295 Orange N side of pear orchard, Rancho Santa Ana, Santa Ana Canyon 122 Comment
  RSA1358  Bebbia juncea B. D. Stark 1929-11-2 651 Orange Along railroad track, Rancho Santa Ana 152 Comment
  RSA30446  Bebbia juncea Elisabeth Norland 1942-7-3 11283 Orange Rancho Santa Ana RR track, 1/4 mile E of entrance Comment
  CAS-BOT-BC106378  Bebbia juncea var. aspera Helen D. Geis 1902-1-1 s.n. Orange Santiago Canyon [Canon] Comment
  SEINET3090330 Image available Beta vulgaris Cesareo Perez 1971-5-15 Orange Huntington State Beach Pacifico Cst. Hwy. Brookhurst Huntington Beach. Comment
  RSA800  Bidens laevis J. T. Howell 1927-10-23 768 Orange Santa Ana River bottom, Rancho Santa Ana 152 Comment
  RSA799  Bidens pilosa J. T. Howell 1928-1-15 806 Orange Near the Ranch House. Rancho Santa Ana. 152 Comment
  RSA698737  Bloomeria crocea L. C. Hall 1934-4-1 s.n. Orange Panerama Heights Comment
  RSA704042  Bloomeria crocea Ralph Walker s.n. Orange Local hills Comment
  CAS-BOT-BC31017  Bolboschoenus maritimus Helen D. Geis 1902-3-1 s.n. Orange Peat Lands Comment
  RSA0059072  Bolboschoenus robustus CNPS Accuracy Assessment Team 2014-7-7 9342 .1 Orange San Joaquin Freshwater Marsh Reserve. Comment
  CDA1758  Bothriochloa barbinodis T. C. Fuller 1961-10-17 7155 Orange East side of Hwy. 101 Alt., opposite 2787 So. Pacific Coast Highway, Laguna Beach. 0 Comment
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Jul 8 2013
  RSA702687  Bothriochloa barbinodis Scott D. White, Michael Honer 2004-5-17 10396 Orange City of Laguna Niguel. Ridges and open slopes directly north of the intersection of Crown Valley Parkway and Pacific Island Dr. 61 Comment
  UCSB52876  Bothriochloa barbinodis Roberts, Fred 1983-3-16 Orange Laguna Beach, Sycamore Hills, central ridge; 1.4 km NNE jct of El Toro and Laguna Cyn Rds; 5.4 km ESE Signal Peak 177 Comment
  SD245200  Bothriochloa barbinodis R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49623 Orange Santa Ana Mountains: along Ortega Highway (74), about 1/4 mile above San Juan Fire Station. Comment
  IRVC18518  Bowlesia incana A. B. McGee 1981-3-27 Orange UCI Ecological Preserve. Irvine Comment
  SEINET3156098  Bowlesia septentrionalis E. K. Balls 1950-3-7 14446 Orange Administration Grounds of Rancho Santa Ana Botanic Garden Comment
  RSA542371  Brachypodium distachyon Fred M. Roberts, Karlin G. Marsh 1988-4-25 3933 Orange San Joaquin Hills: East flank Pelican Hill, 0.9 kilometer SE summit. 120 Comment
  RSA747609  Brachypodium distachyon Fred M. Roberts 2000-5-4 5316 Orange Lomas de Santiago: Loma Ridge, Hicks Cyn., west of SR 241, 1.9 km E Rattlesnake Reservoir dam and 2.1 km WSW Bee Peak. 210 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
  IRVC1050  Brassica nigra L. McCabe 1965-4-21 Orange Corona del Mar. Newport Beach Comment
  RSA0066349  Brassica nigra A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34626 Orange Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir. 280 Comment
  CAS-BOT-BC30255  Brassica nigra Alice Eastwood 1936-4-5 s.n. Orange Santa Ana. Bixby Botanic Garden. Comment
  UCSB48205  Brassica nigra Roberts, Fred 1981-5-2 Orange Mission Viejo: Camino Capistrano; 1.7 km. N Crown Valley Parkway 49 Comment
  UCR98906  Brassica rapa Scott D. White 1993-2-17 1050 Orange Vicinity of Olinda, near city of Brea, immediately north of Carbon Cyn Rd & east of Placentia Ave.; c. 1 mi. (airline) SSE of Tonner Cyn. 183 Comment
  RSA482936  Brassica rapa Freda Detmers 1933-11-1 s.n. Orange Near Fullerton. Comment
  RSA655021  Brodiaea filifolia R. A. Hamilton 1998-6-19 s.n. Orange SCE easement north of the Foothill Transportation Corridor. The site is 1.3km north of El Toro Road and 1.6km east of Portola Parkway. 290 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
  RSA0127606  Brodiaea terrestris subsp. kernensis Fred M. Roberts 2016-4-14 8036 Orange University of California, Irvine campus: western edge of School of Medicine Complex, about 0.9 km W center of campus. 27 Comment
  RSA43  Bromus arvensis J. T. Howell 1927-6-17 153 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  SEINET3921870  Bromus carinatus Steve Boyd, Tim Ross 1992-5-19 7417 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of the wilderness along Lucas Canyon Trail from access road to Rancho Carrillo (7S06) north into Aliso Canyon.; 0 366 Comment
  CAS-BOT-BC156003  Bromus diandrus Ira L. Wiggins 1966-2-19 20454 Orange Roadside in Carbon Canyon near Orange County Survey bench mark RCE 7872. Comment
  RSA699982  Bromus grandis Rankin s.n. Orange Santa Ana. Comment
  UCR140787  Bromus hordeaceus Robin G. Marushia 2004-5-4 009 Orange Southern Coast, Crystal Cove State Park, interior of El Moro Canyon, east side of canyon, utility pole turnout above riparian area crossing 183 Comment
  UCR149408  Bromus hordeaceus Jeffrey Ross, Roselinde Zaka 1998-5-2 Orange South Coast, North side of San Joaquin Hills; William R. Mason Regional Park, near intersection of Yale Avenue and University Drive 27 Comment
  UCR154344  Bromus hordeaceus Mark A. Elvin 2004-5-2 3408 Orange Southern Coastal, Irvine: San Joaquin Freshwater Marsh, near Campus and University Drives; 1.7 km (air) NNW UC Irvine campus center 3 Comment
  RSA542368  Bromus hordeaceus Fred M. Roberts 1988-4-10 3915 Orange Lomas De Santiago: Loma Ridge, 1.0 kilometer N Bolero Lookout., UTM 37 31 1000m N, 4 39 600m E. 415 Comment
  UCR166791  Bromus inermis subsp. inermis R. E. Riefner Jr. 2005-10-1 05- 702 Orange City of Costa Mesa, South Coast Drive at Susan Road 16 Comment
  RSA713565  Bromus inermis subsp. inermis R. E. Riefner Jr. 2005-10-1 5 -702 Orange City of Costa Mesa, South Coast Dr. at Susan Rd. 16 Comment
  IRVC29091  Bromus madritensis subsp. rubens Fred M. Roberts 1989-3-17 4206 Orange Aliso Canyon, 3.3km SSE Moulton Pk. Aliso-Wood Canyon Regional Park 30 Comment
  RSA697684  Bromus rigidus Rankin s.n. Orange Costa Mesa. Comment
  UCD59511  Bromus rubens Beecher Crampton 1963-5-7 6791 Orange Ca. 11 miles northeast of San Juan Capistrano, State Hwy. 74, Lower San Juan Canyon, Santa Ana Mountains. Comment
  RSA625804  Bromus sterilis Scott D. White, Noel Davis 1998-5-21 6548 Orange Santa Ana Mountains, Mission Viejo Area: Aliso Creek watershed, east of El Toro Road just N of junction w/ Valley Vista Way., 33?40.5'N, 117?37'W. 305 Comment
  POM543  Cakile edentula subsp. edentula D. L. Crawford 1916-7-28 s.n. Orange Abalone Point Comment
  SEINET5642639  Cakile maritima Shelby J. Wood 2013-3-9 8 Orange Sunset Beach close to Bolsa Chica.; 0 Comment
  SEINET11093551  Cakile maritima Unknown 1970-8-22 W- 5 Orange PLANTS OF CALIFORNIA Orange Co., California; ca. 4 miles NE of Huntington Beach on coastal strand adjacent to Bolsa Bay & Pacific Coast Hwy.; annual herb 4-6 dm. high with purplish fls.; common in Coastal Strand; growing in decomposed granite soil in sun iwth Oenothera & Baccharis. sea level Comment
  UC1618044  Calandrinia Donald G. Nelson 1933-7-16 163 Orange hills n. Fullerton 76 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
  IRVC29833  Callistemon Tom McCrainie, Mark A. Elvin 2006-9-23 7 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
  SD237519  Callistemon citrinus Mark A. Elvin 2003-2-23 2309 Orange South Coast: Irvine, San Joaquin Marsh along the berm of San Diego Creek. 3 Comment
  CDA32189  Callistemon viminalis T. McCrainie, Mark A. Elvin 2006-9-23 7 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
  UCR199267  Callistemon viminalis R. E. Riefner Jr. 2007-4-1 07- 163 Orange South Coast, city of Laguna Niguel, Oso Creek, c. 1.5 mi north from Paseo de Colinas Street on Camino Capistrano Street 88 Comment
  RSA369028A  Calochortus Anstruther Davidson s.n. Orange [no location specified] Comment
  RSA539373  Calochortus catalinae Fred M. Roberts, Karlin G. Marsh 1989-3-7 4192 Orange Lomas de Santiago: Loma Ridge, tributary to Hicks Canyon, ca. 1.9 kilometers WSW Bee Survey Mark. 134 Comment
  RSA741727  Calochortus catalinae R. E. Riefner 2008-4-15 8 -71 Orange Irvine Ranch Reserve, Fremont Canyon Conservation Easement, W Fremont Canyon, lower Coalmine SCE Rd. 301 Comment
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Jul 2 2014
  RSA749519  Calochortus catalinae Fred M. Roberts 2009-4-11 6886 Orange Lomas de Santiago: Loma Ridge, upper Dripping Springs Cyn., 0.9 km NE Bee Peak and 1.2 km WNW Dripping Springs. 448 Comment
  UCR191352  Calochortus catalinae A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34639 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
  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
  UCR203974  Calochortus catalinae D. E. Bramlet 2008-3-26 4124 Orange Peninsular Range; Santa Ana Mountains, Bee Canyon, Bowerman landfill site. 148 m south of the Bee Canyon access road and 296 m west of the active landfill entrance Comment
  RSA0108729  Calochortus catalinae J. T. Howell 1928-3-17 863 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA649687  Calochortus plummerae R. E. Riefner 2000-6-27 20 -585 Orange NCCP North Ranch Policy Plan Area. E of Main Divide Road and SE from Windy Ridge cypress forest. 556 Comment
  JEPS61716  Calochortus splendens Alice King May 1908 Orange Santa Ana Mts. Comment
  RSA751321  Calochortus splendens A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35291 Orange Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir 300 Comment
  UC1178589  Calochortus splendens Peter Kamb 1948-6-19 1107 Orange se slope Santiago Peak (Orange-Riverside Counties); Santa Ana Mts. 1219 Comment
  CAS-BOT-BC492696  Calochortus splendens D. L. Crawford May 10 s.n. Orange Laguna Mts. 304 Comment
  RSA0050043  Calochortus splendens Wendy Boes 2010-9-8 2009 -011 Orange Peninsular Ranges; Santa Ana Mountains; El Cariso 953 Comment
  RSA627529  Calochortus splendens Sandy Leatherman, Fred M. Roberts, Brian Leatherman, Trish Smith 1998-5-23 20 Orange Black Star Canyon: Spur Road off of Black Star Canyon Road. 335 Comment
  RSA0014077  Calochortus weedii var. intermedius Fred M. Roberts 2008-5-27 7003 Orange Lomas de Santiago: Loma Ridge, Hicks Cyn., c.a. 0.2km beyond Hicks Cyn., Gate, 2.2km WNW Bee Peak, Irvine Ranch conservancy 213 Comment
  RSA0065926  Calochortus weedii var. intermedius Allison D. Rudalevige, Jennifer S. Pareti 2015-5-11 ADR 12 Orange Bee Canyon. 259 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
  UCR133200  Calochortus weedii var. intermedius Adrian Wolf 2000-6-19 462 Orange Santa Ana Mtns., North Ranch Policy Plan Area, 'panhandle' south of Black Star Canyon, east of Black Star Road, north of Baker Canyon 396 Comment
  UCR203907  Calochortus weedii var. intermedius R. E. Riefner Jr. 2008-6-11 08- 150 Orange Santa Ana Mountains, Irvine Ranch Reerve, Fremont Canyon Conservation Eaement, west Fremont Canyon, Coalmine SCE Road 366 Comment
  RSA369019  Calochortus weedii var. weedii M. B. Dunkle 1934-6-18 3979 Orange San Juan Canyon; Southern Coastal 305 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
  RSA795  Calycadenia tenella J. T. Howell 1927-7-28 511 Orange Nolina Canyon, Rancho Santa Ana 152 Comment
  RSA92273  Calycadenia tenella F. W. Peirson 1926-4-25 6643 Orange Laguna canyon Comment
  SEINET7072487  Calystegia macrostegia subsp. cyclostegia A. G. Vestal 1963-3-27 s.n. Orange About 1.8 miles up Cai+-ada Gobernadora. Coordinate datum: NAD27. Comment
  RSA558  Calystegia macrostegia subsp. intermedia J. T. Howell 1927-6-9 62 Orange Botany Garden, Rancho Santa Ana. 152 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
  RSA697155  Calystegia occidentalis subsp. occidentalis Anonymous s.n. Orange Modjeska's Home. Comment
  JEPS47828  Calystegia soldanella L. M. Booth 1932-5-25 1111 Orange Balboa Island , Balboa Island (Newport Bay) Comment
  SEINET3091113 Image available Calystegia soldanella Cesareo Perez 1971-5-15 Orange Huntington State Beach Pacifico Cst. Hwy. Brookhurst Huntington Beach. 0 Comment
  SEINET7126140  Calystegia soldanella N. J. Hartke 1953-4-2 13 Orange Balboa Beach Comment
  IRVC1057  Camelina microcarpa D. Van Gorden 1965-4-15 Orange 27th St. Newport Beach Comment
  UCR157710  Camissonia Adrian Wolf 1998-5-15 294 A Orange South Coast, Dana Point Headlands, north of Scenic Dr. 67 Comment
  UCR191473  Camissonia bistorta A. C. Sanders, Fred M. Roberts 2008-4-8 34740 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, head of Hicks Canyon, S of Santiago Reservoir 351 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
  RSA498  Camissonia californica J. T. Howell 1927-6-5 39 Orange Rancho Santa Ana, near east boundary. 152 Comment
  RSA542489  Camissonia californica Fred M. Roberts, T. Sholars, B. Stechmeyer 1988-3-29 3884 Orange Santa Ana Mountains: Hot Springs Canyon, 1.3 km N Highway 74 by road, 0.7 km NW Juan Rancho Survey Mark. 84 Comment
  RSA732249  Camissonia californica A. C. Sanders, Fred M. Roberts 2008-4-22 35002 Orange Lomas de Santiago, lower Hicks Canyon haul road, just above Irvine Ranch gate and road to cement plant, c. 1 mile NE of Rattlesnake Reservoir 213 Comment
  UCR12582  Camissonia cheiranthifolia subsp. cheiranthifolia J. S. Davis 1972-5-6 720506- 16 Orange South Coast, Newport Beach, 100 yards from the corner of San Joaquin Hills Road and Back Bay Road. 0 Comment
  UCR191366  Camissonia hirtella A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34624 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 290 Comment
  RSA683166  Camissonia intermedia Scott D. White, Amanda Duchardt 2003-4-10 9018 Orange Santa Ana Mountain Foothills: Ridges & east-facing canyons above Trampas Canyon. 122 Comment
  UCR193415  Camissonia micrantha A. C. Sanders, Fred M. Roberts 2008-6-17 35522 Orange Peninsular Range; Santa Ana Mtns., middle section of Weir Canyon, SSE of Walnut Canyon Reservoir 230 Comment
  CAS-BOT-BC160448  Camissoniopsis cheiranthifolia subsp. suffruticosa David D. Keck 1933-9-21 2523 Orange Sunset Beach Comment
  UC422961  Camissoniopsis cheiranthifolia subsp. suffruticosa D. L. Crawford 742 Orange Aliso Pt. Laguna Beach Region (shore cliffs) Comment
  UC537277  Camissoniopsis cheiranthifolia subsp. suffruticosa Lawrence M. Booth 1932-5-25 1114 Orange Balboa Island Newport Bay Comment
  CAS-BOT-BC37125  Capsella bursa-pastoris Ira L. Wiggins 1966-2-5 20422 Orange Fairgrounds, Costa Mesa. Comment
  IRVC1076  Cardamine californica E. Cowper 1965-3-1 Orange [Newport] Back Bay. Newport Beach Comment
  UC537121  Cardaria draba Lawrence M. Booth 1932-5-15 1197 Orange e of Huntington Beach Comment
  CAS-BOT-BC281701  Carduus pycnocephalus Scott D. White; Brian Leatherman 1997-6-12 5330 Orange Santa Ana Mountain foothills. E of San Juan Capistrano: San Juan Creek between Highway 74 bridge and Mission Vieja site, i.e. ca 2-4 miles E of I-15/Highway 74 jtn 75 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-BC118484  Carex praegracilis Helen D. Geis 1902-4-1 s.n. Orange Unspecified Comment
  CAS-BOT-BC118500  Carex praegracilis Helen D. Geis 1902-4-1 506 Orange Santa Ana Comment
  POM202036  Carex praegracilis L. M. Booth 1932-7-1 1234 Orange Anaheim Marsh Comment
  RSA542341  Carex praegracilis Fred M. Roberts, Dar A. Roberts 1989-3-22 4215 Orange Aliso-Wood regional Park: Lower Wood Canyon, 3.6 km SSE Moulton Peak. 34 Comment
  UC212128  Carex praegracilis I. M. Johnston 1918-5-5 1890 Orange El Toro 76 Comment
  CAS-BOT-BC118486  Carex praegracilis Helen D. Geis 1902-4-1 s.n. Orange Peat Lands Comment
  CAS-BOT-BC118507  Carex praegracilis Helen D. Geis 1902-4-1 502 Orange Ditch banks Comment
  UC1618051  Carex triquetra Donald G. Nelson 1935-4-6 254 a Orange San Juan Canyon; about 200-300 ft below main hwy, about 4 mi from summit, e of San Juan Capistrano Comment
  SEINET10495945  Carissa macrocarpa David B. Dunn 1971-8-13 Dunn 18121 Orange Cultivated plants vicinity of Laguna Beach, CA. Comment
  UCR193317  Carpobrotus edulis A. C. Sanders, Fred M. Roberts 2008-6-17 35470 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Agustine staging area near Limestone Canyon Rd. gate at Santiago Cyn Rd. 260 Comment
  UC774887  Carthamus creticus E. L. Paddock 1941-7-21 Orange 1 mi ne Brea (on Union Oil Property, ridge road along south rim Tonner Canyon); Tonner Canyon Comment
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Aug 18 2010
  POM202720  Castilleja affinis L. M. Booth 1932-5-19 1074 Orange Newport Bay. Comment
  RSA542505  Castilleja affinis Fred M. Roberts 1987-3-31 3297 Orange Lomas de Santiago: Lomas [Loma] Ridge, upper Serrano Canyon, east fork, reservoir, 2.7 kilometers SE Bolero Lookout. 350 Comment
  RSA588724  Castilleja affinis Fred M. Roberts 1990-5-7 4606 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
  JEPS24425  Castilleja affinis subsp. affinis Peter M. Ray 1949-5-22 1412 Orange s of San Clemente; San Clemente State Park 15 Comment
  JEPS51261  Castilleja affinis subsp. affinis Lauramay T. Dempster and G. L. Stebbins 1967-3-21 4353 Orange 0.7 mi s Modjeska Canyon (on road to Cook's Corners) Comment
  JEPS57258  Castilleja affinis subsp. affinis L. R. Heckard and R. C. Bacigalupi 1968-5-8 1839 Orange ca 6 mi e Orange; Irvine County Park 152 Comment
  SBBG52723  Castilleja applegatei subsp. martinii C. Davidson 1977-5-18 5628 Orange Bear Springs, Santa Ana Mtns 1219 Comment
  JEPS10617  Castilleja exserta subsp. exserta Alice King Mar 1903 Orange Anaheim plain Anaheim Comment
  UCR223958  Castilleja exserta subsp. exserta Fred M. Roberts 2008-4-9 6866 Orange South Coast, Dana Point, Dana Point Headlands, CNLM Preserve, near Outlook 2, 0.7 km west of Marine Institute, Dana Point Harbor 52 Comment
  RSA278316  Castilleja foliolosa C. W. Tilforth, Walter Wisura 1979-5-23 1807 Orange Mouth of Aliso Canyon, south Laguna. Comment
  UCR175052  Castilleja foliolosa Vanessa Lee 2005-4-24 s.n. Orange South Coast, Crystal Cove, Laguna Beach, above Pacific Coast Highway 61 Comment
  RSA0043344  Castilleja foliolosa Nancy J. Mann 1976-5-20 s.n. Orange Harding Canyon, Santa Ana Mtns. Comment
  UCSB45138  Castilleja foliolosa Woicik, Richard 1976-5-21 Orange Modjeska Canyon; near fire station Comment
  POM18127  Castilleja minor subsp. spiralis Philip A. Munz 1923-9-7 7737 Orange Santa Ana Mountains: on trail from Holy Jim Canyon to Santiago Peak 1220 Comment
  RSA798095  Castilleja stenantha Robert F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49584 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74). Comment
  UCR190976  Caulanthus heterophyllus A. C. Sanders, Fred M. Roberts 2008-4-22 35001 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
  UCR191365  Caulanthus heterophyllus A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34623 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 290 Comment
  UCR191458  Caulanthus heterophyllus A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34652 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 330 Comment
  UCR266296  Caulanthus heterophyllus D. E. Bramlet 2008-4-3 4153 Orange Peninsular Range; Santa Ana Mountains, South Bee Canyon, Bowerman landfill site, 1.2 km south of the Bee Canyon access road, and 122 m west of the active landfill 224 Comment
  RSA0121892  Caulanthus lasiophyllus D. E. Bramlet 2008-3-31 4134 Orange 305m E of Upper Hicks Haul Rd, in Trib to Limestone Cyn., 1km S of Santiago Cyn. Rd. 311 Comment
  CAS-BOT-BC48496  Ceanothus crassifolius J. T. Howell 1929-1-24 1219 Orange Near crest of Santa Ana Mts., south of Sierra Peak 762 Comment
  RSA542417  Ceanothus crassifolius Fred M. Roberts 1988-3-15 3854 Orange Rancho Mission Viejo: Verdugo Canyon, 0.8 km SE Lucas Survey Mark. 247 Comment
  SD181362  Ceanothus crassifolius Paul Shirokawa 1998-5-15 37 Orange Cleveland National forset - Trabuco Ranger District, 2.3 miles from Ortega Highway (State Highway 74) on North Main Divide Rd 960 Comment
  SD220711  Ceanothus crassifolius Jim Riley 2012-2-3 sjc 1 Orange San Juan Creek Arroyo 607 Comment
  SD41968  Ceanothus crassifolius Darley F. Howe 1947-4-29 Orange Santa Ana Mts. Comment
  RSA733936  Ceanothus divaricatus Keith E. Hoffmaster 1936-5-3 715 Orange Santa Ana Mts (Santiago Peak) Comment
  RSA6582109  Ceanothus integerrimus T. A. Daubert 1991-5-19 663 Orange Tucker Wildlife Sanctuary, Modjeska Canyon, office planter. Comment
  UC1070733  Ceanothus integerrimus A. Lewis 1934-5-1 420 Orange Trabuco Elsinore quad., Cleveland National Forest 1341 Comment
  UC718385  Ceanothus integerrimus P. C. Everett 1935-6-18 7214 Orange Summit of Santiago Pk. Santa Ana Mts. 1731 Comment
  RSA16472  Ceanothus integerrimus var. californicus Percy C. Everett 1935-6-19 7236 Orange Trabuco Canyon, 1mile below W summit of truck trail. 1006 Comment
  RSA735268  Ceanothus megacarpus Minor Warne 1934-03 s.n. Orange Gypsum canyon Comment
  UCSB48360  Ceanothus megacarpus var. megacarpus Roberts, Fred 1982-6-30 Orange LAGUNA NIGUEL: just N end of Pacific Island Dr., 1.6km ENE Aliso Peak 295 Comment
  RSA790670  Ceanothus oliganthus Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49699 Orange Northern Santa Ana Mountains: Sierra Peak Comment
  RSA797657  Ceanothus oliganthus Robert F. Thorne, E. W. Lathrop 1977-5-18 49760 Orange Santa Ana Mountains: at head of Trabuco Canyon Trail Comment
  LA44922  Ceanothus oliganthus var. sorediatus W. Pequegnat; 1938-5-6 sn Orange Santa Ana Mountains, Indian Truck Trail 944 Comment
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Aug 29 2015
  SBBG52714  Ceanothus papillosus C. Davidson 1977-5-18 5598 Orange Pleasant Pk, (on county line) 1219 Comment
  CLARK-A1528-3899  Ceanothus papillosus subsp. roweanus John C. Roos 1960-5-30 Orange Santa Ana Mountains 1066 Comment
  RSA797598  Ceanothus spinosus Robert F. Thorne 1977-11-21 49995 Orange Santa Ana Mountains: tributary canyon to San Juan Canyon about 2 miles above San Juan Fire Station 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
  RSA724040  Cenchrus longispinus R. E. Riefner 2004-8-27 4 -387 Orange City of Irvine; San Diego Creek at Woodbridge High School, S of intersection of Barranca Rd. and West Yale Loop Rd. 27 Comment
  IRVC14319  Centaurea melitensis L. T. McHargue 1970-6-22 Orange UCI campus, Irvine Comment
  IRVC573  Centaurea melitensis A. Adams Orange Corona del Mar, Little Corona Beach. Newport Beach Comment
  RSA643428  Centaurea melitensis R. D. Goeden, D. W. Ricker 1965-6-21 s.n. Orange Pacific Coast: Dana Point 76 Comment
  RSA752850  Centaurea melitensis Fred M. Roberts 2009-4-21 7154 Orange Dana Point Headlands: southern cliffs, 0.7 km W Marine Institute at Dana Point Harbor. CNLM Dana Point Preserve. 3 Comment
  UC30921  Centaurea melitensis C. W. Hamlin 1896-1 Orange Buena Park Comment
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Apr 30 2008
  UCD130042  Centaurea melitensis C. Davidson; G. Benny 1971-6-15 1549 Orange Brea Canyon, 1/2 mile north of Central Avenue, along Brea Cr, near bridge. Comment
  RSA562718  Centaurium venustum Steve Boyd, T. S. Ross 1992-5-19 7421 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of the wilderness along Lucas Canyon Trail from access road to Rancho Carrillo (7S06) north into Aliso Canyon. 366 Comment
  RSA573296  Centaurium venustum Steve Boyd, T. S. Ross 1994-9-14 8353 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area of the Cleveland National Forest, Lucas Canyon just downstream of Lucas Canyon Trail crossing. 305 Comment
  RSA697664  Centaurium venustum Lucille Crawford 1932-4-23 s.n. Orange Laguna Beach. Comment
  CAS-BOT-BC123545  Centromadia parryi subsp. australis David Daniels Keck 1933-9-29 2537 Orange Seal Beach. Comment
  CAS-BOT-BC288840  Centromadia parryi subsp. australis D. Bramlet 1990-11-3 2064 Orange On the W side of Upper Newport Back Bay, some 50 m NW of the Delhi channel, approx 100 m SE of the end of University Drive and is located just above an alkaline marsh area 23 Comment
  CAS-BOT-BC288843  Centromadia parryi subsp. australis David D. Keck 1933-9-17 2524 Orange Westminster Comment
  SD80940  Centromadia parryi subsp. australis James Henrickson 1970-7-25 5071 Orange 3 miles northeast of Huntington Beach at far northern end of Bolsa Chica Salt Marsh near pasture; along channel south of Flood Control channel (mak 10/07) 0 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
  UCR256927  Centromadia parryi subsp. australis Jeremiah George 2011-7-8 s.n. Orange Bolsa Chica Mesa, south central edge 8 Comment
  UCR111727  Ceratonia siliqua H. Camp 2000-1-18 s.n. Orange Peninsular Range; Santa Ana Mtns., Caspers Regional Park, 12 mi. east of I-5 in San Juan Capistrano, along Ortega Hwy (Hwy 74), San Juan Creek close to Forest Service boundary and the hot springs 213 Comment
  RSA539367  Cercocarpus betuloides Fred M. Roberts 1989-2-21 4181 Orange Aliso-Woods Canyon Regional Park: Niguel Hill, 1.6 km ENE Aliso Peak. 268 Comment
  UCR192118  Cercocarpus betuloides A. C. Sanders, Fred M. Roberts, Amber O'Neal, D. E. Bramlet 2008-5-9 35304 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along old dirt road, c. 1.25 mi. ESE of Walnut Cyn Reservoir 340 Comment
  UCR237920  Cercocarpus betuloides Dick Newell, Judy Booth 2012-6-24 276 B Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, on Maple Springs Road 1.9 mi. NE of Maple Springs gate 817 Comment
  SBBG128666  Cercocarpus betuloides var. betuloides R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49704 Orange Sierra Peak; Santa Ana Mtns 900 Comment
  UC583258  Cercocarpus minutiflorus Alice Eastwood 1936-4-5 Orange Santa Ana, Bixby Botanic Garden Santa Ana; , Bixby Botanic Garden Comment
  UCR99869  Cercocarpus minutiflorus Scott D. White 1996-12-20 4638 Orange Santa Ana Mountains, above Modjeska Canyon; proposed water tank site 488 Comment
  POM351653  Chaenactis artemisiifolia M. B. Dunkle 1934-6-18 3978 Orange San Juan Canyon 457 Comment
  RSA562738  Chaenactis artemisiifolia Steve Boyd 1992-5-20 7454 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of wilderness in Lucas Canyon along a new section of trail heading up major side canyon northward to Sitton Peak Road (7S09), 305 Comment
  RSA587870  Chaenactis artemisiifolia Fred M. Roberts 1990-5-16 4630 Orange Santa Ana Mtns: Small canyon along SE side of Irvine Mesa, 3.5 km N Bolero Lookout 396 Comment
  RSA731964  Chaenactis glabriuscula A. Sanders, Fred M. Roberts 2008-4-22 34989 Orange Lomas de Santiago, lower Hicks Canyon haul road, just above Irvine Ranch gate and road to cement plant, c. 1 mi. NE of Rattlesnake Reservoir. 213 Comment
  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
  POM294107  Chaenactis glabriuscula var. megacephala Lyman Benson 1946-4-27 12053 Orange Corona Del Mar; Drainage area: Pacific Ocean. 15 Comment
  RSA113264  Chaenactis glabriuscula var. megacephala E. K. Balls 1955-4-4 20424 Orange N of Dana Poit off Hwy 101. 46 Comment
  RSA2070  Chamaesyce polycarpa var. polycarpa C. B. Wolf 1931-3-6 s.n. Orange Trabuco Canyon, 1.5 mile below Trabuco Camp Grounds 549 Comment
  RSA433500A  Chamaesyce polycarpa var. polycarpa M. B. Dunkle 1933-3-5 3089 Orange San Juan Canyon 304 Comment
  RSA562820  Chamaesyce polycarpa var. polycarpa Steve Boyd 1992-5-20 7473 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of the wilderness in Lucas Canyon, along foot trail upstream from end of old roadgrade to upper homestead (corrugated steel building). 350 Comment
  IRVC846  Chamomilla suaveolens C. Weir 1965-4-17 Orange Newport Beach; Balboa Island. Southern Coastal Comment
  RSA685682  Cheilanthes clevelandii Norman C. Cooper 1944-6-4 1339 Orange San Juan Canyon, lower camp ground. 457 Comment
  HSC4362  Chenopodium album D. W. Snell 1964-3-22 4 Orange 0.5 mi. S of Imperial Hwy., 1 mi. W of Yorba Linda. Comment
  IRVC15079  Chenopodium album T. W. Mulroy 1973-3-20 Orange Bolsa Chica [Salt Marsh] Comment
  UCR179762  Chenopodium album R. E. Riefner Jr. 2006-10-8 06- 484 Orange South Coast, Irvine, San Diego Creek near 405 Freeway, between 405 and Laguna Road 51 Comment
  RSA5936  Chenopodium album C. B. Wolf 1932-7-7 3838 Orange Bryant Ranch, along drainage ditch on Bixby Ave.; 100 ft. W. of Hansen Rd.; 100 ft W of corner of NE 1/4 9 Comment
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Apr 9 2014
  RSA234523  Chenopodium ambrosioides James Henrickson 1970-8-22 5298 Orange 2.5 miles NNW of Huntington Beach 0 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
  POM183953  Chenopodium californicum P. A. Munz 1932-3-29 12186 Orange Costa Mesa. Comment
  UCR192453  Chenopodium californicum A. C. Sanders, Fred M. Roberts 2008-3-25 34577 Orange Peninsular Range; Santa Ana Mtns., saddle on ridge near head of Weir Canyon, 5.3 miles ENE of Villa Park, 3.1 mi. N of (Santiago Reservoir) Irvine Lake 405 Comment
  CDA35060  Chenopodium chenopodioides Mark A. Elvin, B. S. Nerhus 2006-11-4 5249 Orange Southern Coastal; Huntington Beach; 1.5 km southwest of Wintersburg, southwest of junction Slater and Goldenwest; Shipley Nature Center. Comment
  UCD98280  Chenopodium macrospermum B. Pitzer 1996-4-30 2785 Orange Upper Newport Bay: Calif. Dept. Fish and Game Ecological Reserve, off (W of) Jamboree Rd. 1 Comment
  POM201793  Chenopodium macrospermum var. farinosum L. M. Booth 1933-9-8 1390 Orange Anaheim Marsh. Comment
  UC536904  Chenopodium macrospermum var. halophilum L. M. Booth 1933-9-8 1390 Orange Anaheim Marsh; coast of Orange Co. Comment
  IRVC385  Chenopodium murale McGuire 1965-4-17 Orange Corona del Mar. Newport Beach Comment
  IRVC395  Chenopodium murale E. P. Cowper 1965-5-6 Orange Corona del Mar High School. Newport Beach Comment
  RSA731958  Chenopodium murale Fred M. Roberts, Sandy Leatherman 2007-11-27 6698 Orange Yorba Linda: drainage channel on east side of Amberdale Dr. ca. 0.3 km S Fairmont Blvd. 118 Comment
  POM262154  Chenopodium murale L. M. Booth 1932-6-9 1175 Orange Santa Ana River, 1 mile from ocean. Comment
  RSA478560  Chenopodium rubrum L. M. Booth 1933-9-8 1390 Orange Anaheim Marsh. Comment
  CDA32185  Chenopodium strictum var. glaucophyllum T. McCrainie, Mark A. Elvin 2006-9-23 3 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
  UC582776  Chenopodium strictum var. glaucophyllum P. A. Munz 1936-6-30 14174 Orange 5 mi s Garden Grove Comment
  RSA7043  Chlorogalum pomeridianum Carl B. Wolf 1932-7-2 3828 Orange Carbon Canyon, 0.5 mile above La Vida Springs. 244 Comment
  UCR233744  Chlorogalum pomeridianum Fred M. Roberts 2008-6-12 7045 Orange Santa Ana Mtns. Foothills, Lomas de Santiago; Loma Ridge, along 'Calochortus Ridge' near West Loma Ridge Road north of Haul Road, 2.6 km NW of Bee Peak, Irvine Ranch Land Conservancy 417 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
  RSA588980  Chorizanthe procumbens D. E. Bramlet 1994-6-23 2388 Orange San Joaquin Hills. ''Pass area'' between Little Sycamore and Camarillo Canyons. The site is 945m of Camarillo Canyon Road and 5 m west of the existing dirt road. 122 Comment
  RSA739343  Chorizanthe procumbens Keith E. Hoffmaster 1935-4-19 298 Orange Santiago can. near Silverado ca., Santa Ana Mountains. Comment
  RSA747627  Chorizanthe procumbens Fred M. Roberts 2008-5-16 6973 Orange Dana Point: Dana Point Headlands, CNLM Preserve, near Strands Road Gate, 0.8km WNW Marine Institute, Dana Point Harbor. 65 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
  POM201761  Chorizanthe staticoides L. M. Booth 1932-5-12 s.n. Orange Newport Bay. Comment
  RSA542528  Chorizanthe staticoides Fred M. Roberts, G. A. Marsh, K. G. Marsh 1988-4-26 3942 Orange San Joaquin Hills: Pelican Hill, 0.5 kim SE Summit. 165 Comment
  RSA698367  Chorizanthe staticoides Kenneth Beard s.n. Orange East of Irvine Park. Comment
  SD134404  Chorizanthe staticoides Craig Reiser 1992-6-11 Orange Laguna Niguel, ridge NE of intersection of Crown Valley Parkway and Pacific Island Drive Comment
  UCR194555  Chorizanthe staticoides A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35328 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 0.3 mi. west of Eastern Transportation Corridor (Hwy 241) and 1.45 mi. east of south end of Walnut Canyon Reservoir 335 Comment
  UCR266321  Chorizanthe staticoides D. E. Bramlet 1991-5-21 3061 Orange South Coast, Dana Point region 122 Comment
  IRVC27934  Chrysanthemoides monilifera A. C. Sanders, Mark A. Elvin 2003-10-12 27324 Orange Irvine; UCI Arboretum, UCI campus near intersection of Jamboree Blvd and Campus Dr. Southern Coastal 15 Comment
  JEPS12327  Cicuta maculata var. bolanderi Lawrence M. Booth 1932-7-29 1333 Orange Newport Bay Comment
  CDA1068  Cirsium arvense Ahelfeld 1957-9-4 s.n. Orange 0 Comment
  RSA721121  Cirsium occidentale Anonymous s.n. Orange Lower Trabuco. Comment
  RSA0054911  Cirsium occidentale var. coulteri Aileen Adams 1932-4-20 s.n. Orange Peter's Canyon. Comment
  IRVC617  Cirsium occidentale var. occidentale C. Orr 1965-3-27 Orange Trabuco Road, 3mi E El Toro Marine Base. El Toro Comment
  POM352202  Cirsium occidentale var. occidentale M. B. Dunkle 1933-5-30 3582 Orange Santa Ana Canyon Comment
  UCSB48231  Cirsium vulgare Roberts, Fred 1981-5-2 Orange Mission Viejo; Camino Capistrano, 1.5 km. N Crown Valley Parkway 49 Comment
  JEPS26610  Clarkia bottae Peter Kamb 1948-6-19 1110 Orange se slope Santiago Peak (Orange County-Riverside County <line>); Santa Ana Mts. 1219 Comment
  RSA652350  Clarkia deflexa Robert Lloyd 1948-5-22 s.n. Orange Santa Ana Canyon 226 Comment
  POM6353  Clarkia dudleyana L. T. Street, Williams 1919-5-10 2752 Orange Turnbull Canyon. Near Whittier 305 Comment
  POM201140  Clarkia purpurea subsp. quadrivulnera C. L. Hitchcock 1933-6-1 4996 Orange 1/4 mi SW of Muddy Springs near Roundtop peak, Rancho Santa Ana. 427 Comment
  RSA610412  Clarkia purpurea subsp. quadrivulnera R. S. Woglum 1932-4-16 s.n. Orange Trabuco Canyon, Santa Ana Mountains, Cleveland National Forest Comment
  UCR218458  Claytonia perfoliata subsp. mexicana Robert DeRuff 2008-1 563 Orange South Coast, Upper Newport Bay, below intersection of Back Bay Dr. and East Bluff Dr. 12 Comment
  RSA663157  Clematis lasiantha R. E. Riefner 2000-6-1 20 -455 Orange NCCP North Ranch Policy Plan Area. N of Irvine Lake and W of Black Star Cyn; W. of dirt access rd. 473 Comment
  UC1201823  Clematis pauciflora R. W. 1933-4-1 Orange near Capistrano Comment
  POM504  Cleome isomeris Lois Clency 1914-07 s.n. Orange Laguna. Comment
  JEPS117747  Clinopodium chandleri Mark A. Elvin, A. C. Sanders 2005-9-2 4499 Orange Santa Ana Mtns: Mouth of Lion Cyn, just up stream from Lower San Juan Campground. Comment
  RSA542394  Cneoridium dumosum Fred M. Roberts Jr. 1984-2-4 1173 Orange Temple Hill: Upper Hobo Canyon, 1.2km NNE Goff Island; 2.4km S Top of the World School. 200 Comment
  UC1130452  Cneoridium dumosum A. Lewis April, 1934 401 Orange Near Arch Beach. Corona 7.5'Q. Comment
  POM177568  Cnicus benedictus A. Gilman 1931-5-25 s.n. Orange Field Banning Comment
  UCR227635  Collinsia parryi Robt. L. Allen, Fred M. Roberts, Christopher M. Barnhill 2003-4-26 12365 Orange Santa Ana Mountains, San Juan Canyon, San Juan Loop Trail near Upper San Juan Campground 523 Comment
  IRVC20432  Comarostaphylis diversifolia var. diversifolia Fred M. Roberts 1983-4-7 977 Orange Niguel Hill, above Pacific Island Dr., 1.7km SE Aliso Peak, 3.0km SSW Alicia Fire Station, Laguna Niguel 239 Comment
  SEINET8584808 Image available Conium maculatum T. C. Arambula 1966-1 53 Orange Brea, Carbon Canyon Rd Comment
  POM201632  Conium maculatum L. M. Booth 834 Orange Santa Ana Canyon 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
  IRVC9146  Convolvulus arvensis B. T. Gittins 1966-6-20 1414 Orange 0.5mi N Warner on Euclid Ave.; roadside ditch embankment. Huntington Beach Comment
  IRVC966  Convolvulus arvensis L. McCabe 1965-4-13 Orange Corona del Mar. Newport Beach Comment
  IRVC973  Convolvulus arvensis A. Weir 1965-5-9 Orange Mar Vista, east bluff. Newport Beach Comment
  OBI7980  Convolvulus arvensis Kurt R. Neisess 1975-12-20 s.n. Orange In the Fullerton Hills area Comment
  RSA643431  Convolvulus arvensis R. D. Goeden, D. W. Ricker 1965-6-15 s.n. Orange Santiago Blvd., Villa Park. 91 Comment
  UCR109770  Convolvulus arvensis R. D. Goeden, Don W. Ricker 1965-6-15 s.n. Orange Santiago Blvd., Villa Park 91 Comment
  UCR138387  Convolvulus arvensis Scott D. White, Brian Leatherman 1997-6-12 5346 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
  UCR228812  Convolvulus arvensis Dick Newell, Don Millar 2011-7-19 206 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Limestone Canyon Rd. at junction to Dripping Springs 312 Comment
  RSA5875  Convolvulus arvensis C. B. Wolf 1932-9-13 4024 Orange 3/10 mi. W of Los Alamitos Blvd. and 200 ft. So. of Bryant Ave. Comment
  UCR85393  Convolvulus simulans H. Camp 1995-4-14 s.n. Orange Peninsular Range; Santa Ana Mtns., Caspers Park, 7 mi. east of San Juan Capistrano, west of Bell Creek 183 Comment
  RSA703142  Conyza bonariensis Fred M. Roberts 2003-9-11 6014 Orange Rancho Mission Viejo; Donna O'neill Land Conservancy, Cristianitos Cyn., 0.79 km N of Sycamore Gate, 0.23 km W of Christianitos Road. 126 Comment
  IRVC29827  Conyza canadensis Tom McCrainie, Mark A. Elvin 2006-9-23 1 Orange San Joaquin Marsh Freshwater Marsh, UC Natural Reserve; SW edge, along San Diego Creek, N of University Drive, E Hwy 73. Southern Coastal 2 Comment
  RSA731653  Conyza canadensis Fred M. Roberts 2007-10-29 6626 Orange Laguna Beach: Temple Hill, Nyes Place, ca. 0.2 km S Moulton Meadows Park. 232 Comment
  RSA743521  Conyza canadensis Fred M. Roberts, Carol A. Roberts 2008-9-28 7113 Orange Dana Point: Dana Point Headlands, CNLM Preserve near NE Gate, 0.5 km W Marine Institute (Dana Point Harbor). 75 Comment
  UCR192729  Conyza floribunda A. C. Sanders, Fred M. Roberts 2008-5-6 35210 B Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hicks Canyon near Irvine Ranch gate and road junction to cement plant 180 Comment
  SEINET4675783  Cordylanthus maritimus Robert F. Thorne 1975-1 Orange Comment
  JEPS6032  Cordylanthus maritimus subsp. maritimus L. M. Booth 1932-7-1 1233 Orange Anaheim Creek Comment
  RSA412315  Cordylanthus maritimus subsp. maritimus F. R. Fosberg 1930-7-10 S 3176 Orange Anaheim Landing. [Now Seal Beach, Orange County. Los Angeles Co. on label] 1 Comment
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Nov 5 2007
  RSA0045606  Cordylanthus pilosus R. H. McArthur 1934-5-19 s.n. Orange Live oak Canyon. Comment
  RSA412301  Cordylanthus rigidus subsp. setiger M. B. Dunkle 1934-6-18 3992 Orange San Juan Canyon, Southern Coastal. 305 Comment
  RSA712  Cordylanthus rigidus subsp. setiger J. T. Howell 1927-6-26 218 Orange Claymine Canyon near Sierra Peak 366 Comment
  UC284871  Cordylanthus rigidus subsp. setiger P. A. Munz 1923-9-7 7745 Orange Santiago Peak Santa Ana Mts. 1645 Comment
  CHSC114117  Cordylanthus rigidus subsp. setiger Sandy Leatherman 2011-7-2 2011 -20 Orange Peninsular Ranges; Chino-Puente Hills region: 50 meters west of Carbon Canyon Road and Lions Canyon Road in the City of Brea; UTM Zone 11S; 427559.41E 3756239.97N. 274 Comment
  CAS-BOT-BC287841  Coreopsis californica Miss. Helen D. Geis 1904-4-1 732 Orange Silverado Canon, Santa Ana Mts Comment
  CDA25730  Coreopsis tinctoria A. C. Sanders, Fred M. Roberts 2008-8-7 35981 Orange Peninsular Range; Santa Ana Mountains.; Lower Weir Canyon, at narrow gorge c. 0.6 mile above mouth of canyon at Irvine Ranch gate. Comment
  CAS-BOT-BC101293  Corethrogyne filaginifolia Carl B. Wolf 1933-8-24 5394 Orange Santa Ana Mts. Summit of Santiago Pk. 1731 Comment
  RSA0015955  Corethrogyne filaginifolia Fred M. Roberts 2012-5-10 7567 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
  UC1119252  Corethrogyne filaginifolia A. Lewis 1934-4-1 402 Orange Arroyo Trabuco Corona Quadrangle Comment
  RSA292463  Corethrogyne filaginifolia var. virgata James Henrickson 1972-10-21 8066 Orange Newport Beach, So. of Jamboree Rd., E. of Irvine Coast Country Club near U.C. Irvine. Irrigated grassland eventually to be used for large Newport Beach Business Center. 46 Comment
  SEINET11843910  Corethrogyne filaginifolia var. virgata S. A. Thompson, Rawlins, J. E. 1988-1 5265 Orange Cleveland National Forest, 3.8 mi E of San Juan Hot Springs on CA 74 370 Comment
  POM201926  Cornus californica L. M. Booth 1932-7-19 1278 Orange Bolsas Marsh. Comment
  IRVC24510  Coronopus didymus Fred M. Roberts 1986-3-14 2647 Orange University of California campus, south side of Alderich Park near Engineering Building, Irvine 33 Comment
  UCR193758  Cotula australis A. C. Sanders, Fred M. Roberts 2008-7-3 35712 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along Weir Canyon Rd. 1.2 mi. SSE of Walnut Canyon Reservoir, below Upper Blind Canyon Rd. 212 Comment
  RSA696770  Cotula coronopifolia Minor Warne 1934-5-13 s.n. Orange Santa Ana River Bank. Comment
  UCSB44179  Cotula coronopifolia Hennema, J. 1977-5-21 Orange Newport Back Bay 6 Comment
  RSA696059  Cotyledon lanceolata Keith E. Hoffmaster 1928-5-29 s.n. Orange San Onofre. CP5. Comment
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Dec 20 2019
  SD234933  Cotyledon orbiculata R. E. Riefner Jr. 2006-8-25 06 407 Orange South Coast: Dana Point Harbor Dr. at Ensenada Pl. 13 Comment
  UCR182817  Cotyledon orbiculata R. E. Riefner Jr. 2006-8-25 06- 407 Orange South Coast, Dana Point Harbor, Dana Point Harbor Dr. at Ensenada Pl. 13 Comment
  UCR191443  Crassula connata A. C. Sanders, Fred M. Roberts 2008-4-8 34725 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, head of Hicks Canyon, S of Santiago Reservoir 351 Comment
  RSA643445  Cressa truxillensis R. D. Goeden, D. W. Ricker 1965-7-7 s.n. Orange Tustin township, near Peters Canyon Channel, E of Santa Ana Marine Corps Air Station. 61 Comment
  UCR258351  Cressa truxillensis Fred M. Roberts 2014-4-21 7848 Orange South Coast, SAN JOAQUIN HILLS: Laguna Lake 1 (Upper Laguna Lake), south basin 113 Comment
  RSA0009408  Cressa truxillensis Marcus E. Jones 1924-8-26 s.n. Orange Newport. Comment
  CDA4077  Crotalaria capensis A. C. Sanders, Mark A. Elvin 2003-10-12 27318 Orange Southern Coastal Slope; Irvine, UCI Arboretum, UCI campus near intersection of Jamboree Blvd. and Campus Dr. Comment
  JEPS52469  Croton californicus Alice King Mar. 1908 Orange Anaheim Plain Comment
  RSA734600  Croton californicus A. C. Sanders, Fred M. Roberts 2008-5-6 35229 Orange Lomas de Santiago, lower Hicks Canyon, just above tollway (Hwy 241) crossing on Irvine Haul Rd., near debris basin. 216 Comment
  RSA785322  Croton californicus Dick Newell, Don Millar 2010-4-27 027 Orange Lomas de Santiago, Limestone Ridge Rd. at junction of Markel Spur Rd., overlooking The Sinks 427 Comment
  CDA35289  Croton californicus Mackessy & Pope 1957-6-27 Orange Santa Ana riverbed. 0 Comment
  UCR191234  Croton setiger A. C. Sanders, Fred M. Roberts 2008-4-22 34984 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
  RSA0043358  Crypsis schoenoides Fred M. Roberts, Laura Cohen 2012-10-31 7715 Orange San Joaquin HillsL Laguna Lake 1 (Upper Laguna Lake), north end. Laguna Coast Wilderness Park, ca. 5.1 km ENE Signal Hill. 113 Comment
  UCR123430  Crypsis schoenoides G. James 1968-10-1 s.n. Orange Huntington Beach, near Beach Boulevard and Adams Boulevard. Comment
  RSA713393  Crypsis schoenoides R. E. Riefner 2005-10-5 5 -706 Orange City of Yorba Linda, Santa Ana River bottom, N flood plain, near Yorba Linda Regional Park. 98 Comment
  RSA0029036  Cryptantha Keith E. Hoffmaster 1934-4-8 137 Orange Santa Ana Mts. Comment
  RSA798545  Cryptantha clevelandii R. F. Thorne, E. W. Lathrop 1977-5-18 49747 Orange Santa Ana Mountains: summit of Santiago Peak 1733 Comment
  RSA6632  Cryptantha clevelandii P. A. Munz, L. T. Street, G. Williams 1919-5-3 2619 Orange Santa Ana River Canyon. Comment
  JEPS67671  Cryptantha intermedia Alice King 1908-3-9 Orange Anaheim plain Anaheim Comment
  RSA731998  Cryptantha intermedia A. C. Sanders, Fred M. Roberts 2008-4-22 35057 Orange Penisular Range; Lomas de Santiago, Loma Ridge c. 1/4 mi. SE of VABM Bee, above Bee Canyon landfill on road from Hicks Canyon Haul Rd. to Limestone Canyon. c. 3.5 mi. WSW of Silverado 493 Comment
  UC1063976  Cryptantha intermedia A. Lewis 1934-3-1 386 Orange Borrego Canyon Corona Quad. 426 Comment
  POM6631  Cryptantha microstachys P. A. Munz, L. T. Street, G. Williams 1919-5-3 2620 Orange Santa Ana River Canyon. Comment
  RSA542660  Cryptantha microstachys Fred M. Roberts 1988-4-10 3907 Orange Lomas De Santiago: Loma Ridge, 1.0 kilometer N Bolero Lookout. 415 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
  RSA683165  Cryptantha microstachys Scott D. White, Amanda Duchardt 2003-4-10 9013 Orange Ridges & east-facing canyons above Trampas Canyon. 122 Comment
  RSA733630  Cryptantha microstachys Keith E. Hoffmaster 1935-5-5 620 Orange San Juan Canyon., Santa Ana Mts. 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
  SD247614  Cryptantha muricata R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1997-4-27 49663 Orange Northern Santa Ana Mountains: Coal Canyon (NW of Sierra Peak). Comment
  IRVC17035  Cryptantha muricata var. muricata L. McCabe 1965-4-24 Orange Ortega Hwy. Santa Ana Mountains Comment
  POM178580  Cryptantha racemosa Marcus E. Jones 1930-3-3 s.n. Orange Santa Ana Mountains. Comment
  CDA42236  Cucurbita digitata Bellue - Paddock Oct 1944 Orange Near Ry. [Railway?] 0 Comment
  RSA756062  Cucurbita pepo A. C. Sanders, Fred M. Roberts 2008-9-18 36087 Orange Lomas de Santiago, Santiago Creek Canyon c. 0.5-0.8 miles above the highway bridge 300 Comment
  UCR141347  Cupaniopsis anacardioides Robert DeRuff 2001-1 488 Orange Southern Coast, Newport Beach, Newport Back Bay, near edge of 23rd Street Creek 12 Comment
  UCR140973  Cupressus arizonica June Latting 1973-6-30 s.n. Orange Santa Ana Mountains, Beeks Place, south of Oak Flat 854 Comment
Read comments
Mar 28 2014
  CAS-BOT-BC80575  Cupressus forbesii John Thomas Howell 1927-8-10 2983 A Orange upper [Claymine] Clay Mine Canyon, n. Santa Ana Mts. 609 Comment
  RSA648664  Cupressus forbesii Richard E. Riefner 2000-8-3 20 -708 Orange NCCP North Ranch Policy Plan Area. E of Main Divide Road and E of Windy Ridge main cypress forest 542 Comment
  RSA7112  Cupressus forbesii B. D. Stark 1933-3-17 4532 Orange Claymine Canyon, Santa Ana Mts. 609 Comment
  UC1281345  Cupressus forbesii H. E. McMinn 1935-6-22 3926 Orange at head Clay Mine Canyon (n end of Santa Ana Mts.); Santa Ana Mts., Clay Mine Canyon Comment
  UCR113449  Cupressus forbesii R. E. Riefner Jr., Adrian Wolf 2000-6-1 20- 451 Orange Peninsular Range, Santa Ana Mountains, North Ranch Policy Plan Area, north of Irvine Lake [Santiago Reservoir] and west of Black Star Canyon, west of dirt access road, W slope of Fremont Canyon. 518 Comment
  CAS-BOT-BC80681  Cupressus guadalupensis var. forbesii C. B. Wolf 1935-1-2 6279 Orange Santa Ana Mts., slopes of Sierra Peak, W. of [Claymine] Clay Mine Canyon along road to peak 670 Comment
  RSA0014076  Cuscuta californica Fred M. Roberts 2008-5-27 7004 Orange Lomas de Santiago: Loma Ridge, Hicks Cyn., c.a. 0.2km beyond Hicks Cyn., Gate, 2.2km WNW Bee Peak, Irvine Ranch conservancy 213 Comment
  RSA562766  Cuscuta californica Steve Boyd, Timothy S. Ross 1992-5-19 7420 Orange Southern Santa Ana Mountains San Mateo Canyon Wilderness Area. Western edge of the wilderness along Lucas Canyon Trail from access road to Rancho Carrillo (7S06) N into Aliso Canyon. 366 Comment
  RSA797668  Cuscuta californica R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49772 Orange Santa Ana Mountains: Trabuco Canyon. Comment
  UC1608264  Cuscuta californica Steve Boyd and Tim Ross 1992-5-19 7420 Orange San Mateo Canyon Wilderness Area, w edge of the wilderness along Lucas Canyon Trail from access roadd to Rancho Carrillo (7S06) n into Aliso Canyon Southern Santa Ana Mountains 365 Comment
  UC729867  Cuscuta californica Carl B. Wolf 1932-7-2 Orange .12 mi below Vida Springs; Carbon Canyon 213 Comment
  UCR16113  Cuscuta californica Dave Cerf 1971-4-17 s.n. Orange Orange Park Acres, 0.25 mi. north of Twin Lakes 396 Comment
  RSA409769  Cuscuta californica var. breviflora George Price 1967-5-17 s.n. Orange O'Neil Park Comment
  JEPS47118  Cuscuta salina L. M. Booth Oct 1933 Orange Newport Comment
  RSA394864  Cuscuta salina Anstruther Davidson 1907-9-1 1780 a Orange Newport Comment
  RSA716729  Cuscuta subinclusa Fred M. Roberts 2004-8-21 6100 Orange Santa na Mtns.: Hot Springs Cyn., Hot Springs Cyn. Rd., c.a. 0.8km by road N jct. SR 74; 0.7km NNW Juan Rancho Survey Mark. 255 Comment
  RSA750002  Cuscuta subinclusa A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35320 Orange Weir Canyon, along fire line/bulldozer cut, c. 1.5 mi. east of Walnut Cyn Reservoir 346 Comment
  RSA0089222  Cynodon dactylon Fred M. Roberts 2014-4-21 7864 Orange South Coast: San Joaquin Hills: Upper Laguna Lake 1 (upper Laguna Lake), north basin. 113 Comment
  RSA47  Cynodon dactylon J. T. Howell 1927-7-27 488 Orange Santa Ana River, Rancho Santa Ana. 152 Comment
  UCD60023  Cynodon dactylon Collector Unknown 1924-6-1 s.n. Orange De Tarr. Comment
  JEPS64090  Cyperus eragrostis L. M. Booth 1932-5-15 1201 Orange Costa Mesa Comment
  SD245176  Cyperus eragrostis R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49572 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74). Along San Juan Creek. Comment
  IRVC29698  Cyperus esculentus Mark A. Elvin, Barry S. Nerhus 2006-11-4 5244 Orange Huntington Beach; 1.5 km SW of Wintersburg, SW of jct Slater and Goldenwest; Shipley Nature Center. Southern Coastal 1 Comment
  RSA92102  Cyperus esculentus F. W. Peirson 1923-9-6 4032 Orange Along canal east of Olive. Comment
  UCR247902  Cyperus involucratus Fred M. Roberts 2013-6-12 7792 Orange Peninsular Ranges, SANTA ANA MTNS.: Lower Silverado Canyon along Silverado Creek on north side of Silverado Canyon Road, 0.6 km ENE Silverado School and 1.4 km up stream Black Star Road crossing. 320 Comment
  UCSB57539  Cyperus involucratus Roberts, Fred 1984-2-18 Orange Casper's Regional Park; San Juan Canyon, Hwy.74, 4.2 km. NNE Visitor Center along San Juan Creek; 3.1 km. SW San Juan Guard Station 160 Comment
  CAS-BOT-BC114244  Cyperus laevigatus Carl B. Wolf 1932-7-2 3813 Orange Carbon Canyon, 1/8 mi below La Vida Springs. 213 Comment
  CAS-BOT-BC114246  Cyperus laevigatus Carl B. Wolf 1932-7-2 3814 Orange Carbon Canyon, 1/8 mi below La Vida Springs. 213 Comment
  RSA5915  Cyperus laevigatus Carl B. Wolf 1932-7-2 3812 Orange Carbon Canyon, 1/8 mile below La Vida Springs [La Vida Mineral Springs]. 21 Comment
  SD28115  Cyperus laevigatus Carl B. Wolf 1932-7-2 3814 Orange Carbon Canyon ; 0.125 mile below La Vida Springs; edge of small watercourse. 213 Comment
  UC729960  Cyperus laevigatus Carl B. Wolf 1932-7-2 3814 Orange 1/8 mi. below La Vida Springs (Carbon Canyon); Carbon Canyon 213 Comment
  RSA77  Cyperus niger var. capitatus J. T. Howell 1927-7-19 439 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  RSA92095  Cyperus niger var. capitatus F. W. Peirson 1924-10-19 5231 Orange Wintersberg Comment
  CAS-BOT-BC414246  Cyrtomium falcatum R. E. Riefner, Jr. 2014-6-25 14 -210 Orange City of Laguna Beach, Shaw's Cove, north of Cliff Dr. and Fairview St. 3 Comment
  UCR240195  Cyrtomium falcatum R. E. Riefner Jr. 2012-1-16 12- 5 Orange South Coast, city of Newport Beach, Corona Del Mar, beach area west of Morning Canyon Road 1 Comment
  CDA20218  Dactyloctenium aegyptium R. Tiffer 2003-9-4 PDR 1256123 Orange Southwestern California; Santa Ana River bank in Anaheim. 0 Comment
  CAS-BOT-BC402185  Datisca glomerata R. F. Thorne; E. W. Lathrop; W. Wisura 1977-7-8 49618 Orange Santa Ana Mountains: Bluffs above San Juan Creek, about 1 mile above San Juan Fire Station. Comment
  UCR240083  Datisca glomerata Dick Newell, Judy Booth 2012-6-3 266 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, Maple Springs Truck Trail/Silverado Canyon Rd., 1.6 miles ENE of Maple Springs Gate 741 Comment
  SD245348  Datisca glomerata R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49563 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74). Along San Juan Creek. Comment
  CDA23138  Datura stramonium Mark A. Elvin, D. G. Kelch 2006-12-9 5321 Orange Southern Coastal; Irvine; San Diego Creek, edge of San Joaquin Marsh, beside University Drive, between Campus Drive and Highway 73. Comment
  RSA733935  Datura stramonium Keith E. Hoffmaster 1934-6-27 5 Orange North Costa Mesa Comment
  RSA733869  Datura wrightii Keith E. Hoffmaster 1934-7-3 4 Orange near Costa Mesa Comment
  UCR192977  Datura wrightii A. C. Sanders, Fred M. Roberts 2008-6-17 35465 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Agustine staging area near Limestone Canyon Rd. gate at Santiago Cyn Rd. 260 Comment
  UCSB10435  Datura wrightii Haller, Norman 1953-4-25 Orange U.S. 101, 3 miles northwest of Laguna Beach Comment
  RSA648189  Daucus pusillus Karl Price 1988-5-21 51 Orange An unnamed side canyon within Hot Springs Canyon. It is on Hot Springs Canyon Rd., 0.75 mi. North of Ortega Hwy. (74), 12.6 mi. East of San Juan Capistrano. 304 Comment
  RSA699549  Daucus pusillus L. C. Hull 1934-8-4 s.n. Orange Laguna Hills Comment
  UC1093919  Deinandra fasciculata Herbert L. Mason 1926-4-25 2932 Orange 5 mi s Laguna Comment
  UCR256517  Deinandra fasciculata R. E. Riefner Jr. 2014-8-10 14- 281 Orange South Coast, city of San Clemente, Rancho San Clemente Trail, east c. 0.15 mi from Ave Salvador, and south c. 0.2 mi off Utility Access Road 202 Comment
  CAS-BOT-BC299334  Deinandra fasciculata John Thomas Howell 1927-6-8 2454 Orange Southern Puente Hills, Santa Ana Canyon 182 Comment
  RSA94100  Deinandra fasciculata F. W. Peirson 1924-8-29 5064 Orange Santa Ana Comment
  RSA724055  Deinandra paniculata R. E. Riefner 1994-9-6 94 -552 Orange City of Dana Point, Dana Hills, vicinity of Dana Hills High School. 27 Comment
  RSA48922  Delphinium parryi P. A. Munz 1949-5-26 13381 Orange Head of Sierra [Freemont] Canyon, Santa Ana Mountains. 732 Comment
  CAS-BOT-BC121419  Delphinium parryi subsp. parryi L. R. Abrams 1901-6-1 1818 Orange Santa Ana Mts Comment
  UC1126384  Dendromecon rigida J. B. Spring 1931-3-18 25 Orange Black Star Canyon Corona Quadrangle 609 Comment
  RSA697422  Dentaria integrifolia R. H. McArthur 1934-3-3 62 Orange Forks of Laguna Canyon. Comment
  UCR211966  Descurainia pinnata Dick Newell, Don Millar 2010-2-23 001 Orange South Coast, Serrano Ridge, 3 mi west of Laguna Hills, 0.67 mi west of Languna Canyon Road, east of Shady Canyon 244 Comment
  POM50330  Dicentra chrysantha L. R. Abrams 1901-06 1806 Orange Santiago Peak Trail. 915 Comment
  UCR158040  Dichondra occidentalis Adrian Wolf 1998-5-15 288 Orange South Coast, Dana Point Headlands, north of Scenic Dr. 67 Comment
  SD152749  Digitalis purpurea Steve Boyd, Tim Ross 1992-5-20 7480 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of the wilderness in Lucas Canyon, along foot trail upstream from end of old roadgrade to upper homestea. 351 Comment
  RSA0062639  Digitaria sanguinalis Jack D. Ingwersen 1962-6-2 s.n. Orange Anaheim. Comment
  RSA0019266  Dimorphotheca ecklonis Fred M. Roberts 2008-10-9 7122 Orange Dana Point: Dana Point Headlands, CNLM Preserve, at base of cliff adjacent to Dana Strands Beach, 0.8km WNW Marine Institute (Dana Point Harbor). 3 Comment
  RSA0019267  Dimorphotheca ecklonis Fred M. Roberts, Sandra Leatherman, Jennifer Pareti 2009-4-14 7149 Orange Dana Point Headlands: Dana Strand Beach and slopes above beach, 0.8 km WNW Marine Institute at Dana Point Harbor. CNLM Dana Point Preserve. 3 Comment
  SD248332  Dimorphotheca fruticosa R. E. Riefner Jr. 2011-7-1 11 79 Orange City of Newport Beach, beach area west of Shorecliff Road and Cameo Shores Road. 2 Comment
  RSA699271  Diosma ericoides Ruth Greenwald, Virginia Pritchard 1938-05 s.n. Orange Santa Ana. Comment
  CAS-BOT-BC151044  Diplacus brevipes John Thomas Howell 1927-6-5 2429 Orange Southern Puente Hills in the Santa Ana [Canon] Canyon 152 Comment
  CAS-BOT-BC151046  Diplacus brevipes A. C. Sanders 2008-4-29 35125 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
  SBBG28885  Diplacus puniceus N. C. Cooper 1944-6-4 1321 Orange Elsinore Mtn, Lookout at top 1066 Comment
  SEINET13777977 Image available Diplacus puniceus J. McNeill 1969-1 3001 Orange San Juaquin Hills, Coyote Canyon 200 Comment
  UCR173935  Diplotaxis muralis A. C. Sanders, Mark A. Elvin 2006-5-6 32250 Orange South Coast, UC Irvine Arboretum, NE side of gardens toward Campus Dr. 15 Comment
  CAS-BOT-BC43561  Diplotaxis tenuifolia Helen D. Geis 1902-1-1 544 Orange Santa Ana. Comment
  CDA3678  Diplotaxis tenuifolia Margaret Bellue, Tubbs, Johnson Oct 1944 Orange Bataxia Street Crossing, Santa Fe. 0 Comment
  POM20994  Diplotaxis tenuifolia J. Valdes 1924-1-25 s.n. Orange Between Tustin and Santa Ana. Comment
  RSA610234  Dodecatheon clevelandii Fred M. Roberts 1997-2-7 4976 Orange Rancho Mission Viejo: Calif. Rte. 74 circa 6.8 km E Interstate 5 ( San Juan Capistrano) opposite the mouth of Canada Gobernadora, 1.2km NE Viejo Survey Mark. 88 Comment
  RSA627743  Dodecatheon clevelandii Scott D. White, Brian Leatherman 1998-1-26 6063 Orange Irvine, Univ. of Calif. Irvine Campus: Site of proposed Research Park. SW of main campus circle, ca. halfway between Berkeley Av. and new freeway (Bonita Cyn.) 12 Comment
  CAS-BOT-BC41701  Draba cuneifolia var. sonorae Helen D. Geis 1902-3-29 s.n. Orange Santa Ana River. Comment
  POM626  Drymocallis glandulosa var. wrangelliana I. M. Johnston 1918-4-27 1893 Orange Laguna Beach, San Joaquin Hill 15 Comment
  IRVC23909  Dryopteris arguta Fred M. Roberts, R. L. Allen 1985-8-19 2136 Orange Mission Viejo: lateral to Engilish Canyon along Vista de Lago Drive; 3.4km ENE El Toro Fire Station. Southern Coastal 218 Comment
  RSA301978  Dryopteris arguta J. R. Shevock 1970-12-20 570 Orange Silverado Canyon 579 Comment
  RSA739332  Dryopteris arguta Keith E. Hoffmaster 1934-4-22 37 Orange Santa Ana Mountains. Comment
  CAS-BOT-BC70836  Dryopteris arguta Carl B. Wolf; E. R. Johnson 1939-3-16 9492 Orange Santa Ana Mts., north side of Pleasant's Peak 1219 Comment
  IRVC19378  Dryopteris arguta R. L. Allen 1977-2-13 s.n. Orange [San Juan Canyon], Ortega Hwy, roadside 111; small side canyon, NW of main canyon. Santa Ana Mountains Comment
  RSA704080  Dryopteris arguta D. E. Bramlet, Fred Roberts 2003-5-1 3426 Orange Donna O'Neill Reserve. Ephemeral drainage north of the North Ridge trail 457m west of Cristianitos Rd. and 1.07 km north of the E-W access road. 128 Comment
  CAS-BOT-BC109565  Dudleya blochmaniae subsp. blochmaniae Reid Moran 1950-4-24 3388 Orange San Clemente. Comment
  LA204783  Dudleya blochmaniae subsp. blochmaniae None; 1951-4-26 sn Orange Salt Creek Beach, Laguna Comment
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Nov 15 2013
  SD45413  Dudleya blochmaniae subsp. blochmaniae Reid Moran 1950-4-24 3388 Orange San Clemente, atop sea bluffs. Comment
  UCR218179  Dudleya cymosa Mark A. Elvin, Laura Soloro, Adam Sriro 2003-1-10 2222 Orange Peninsular Range; Santa Ana Mtns., north end of the mountains above Green River Golf Course, very near the Riverside Co. line 540 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
  UC2059992  Dudleya edulis K. Nakai 1978-4-19 360 Orange Aliso Canyon, ca 200 yards from Highway 1. Comment
  JEPS49887  Dudleya lanceolata John Thomas Howell 1927-7-3 2637 Orange Claymine Canyon Santa Ana Mtns Comment
  POM6592  Dudleya lanceolata P. A. Munz 1919-5-4 s.n. Orange Laguna canyon Comment
  RSA637493  Dudleya lanceolata Valerie L. Soza, LeRoy Gross 1999-6-8 504 Orange Santa Ana Mountains: Santiago and Modjeska Canyons, above Tucker Wildlife Sanctuary, above the town of Modjeska 518 Comment
  RSA663208  Dudleya lanceolata R. E. Riefner 2000-6-1 20 -456 Orange NCCP North Ranch Policy Plan Area. N of Irvine Lake and W of Black Star Cyn; W. of dirt access rd. 473 Comment
  UCR119302  Dudleya lanceolata R. E. Riefner Jr., Adrian Wolf 2000-6-1 20- 456 Orange Santa Ana Mountains, North Ranch Policy Plan Area, north of Irvine Lake [Santiago Reservoir] and west of Black Star Canyon, west of dirt access road, W slope of Fremont Canyon. 473 Comment
  RSA397817  Dudleya multicaulis Anstruther Davidson 1908-5-1 1983 Orange Corona del Mar Comment
  RSA682920  Dudleya multicaulis Scott D. White, Amanda Duchardt 2003-5-1 9148 Orange Santa Ana Mtn Foothills; slopes above the west side of Canada Gobernadora and adjacent small canyon to the west. 76 Comment
  UCD101935  Dudleya multicaulis Miss Thekla Mahr 1920-6-1 s.n. Orange near Laguna. Comment
Read comments
Jun 13 2012
  IRVC25030  Dudleya stolonifera Fred M. Roberts 1984-4-29 1360 Orange Temple Hill above Laguna Canyon, 6.5km SE Signal Peak; 0.6km E Bench Mark 104, Laguna Beach 195 Comment
  RSA534167  Dudleya stolonifera Reid V. Moran 1977-6-13 24230 Orange Willow Canyon, tributary of Laguna Canyon. 125 Comment
  CAS-BOT-BC109771  Dudleya viscida E. K. Balls 1936-6-17 19736 Orange Santa Ana Mountains, San Juan Canyon, along Ortega Highway, 0.6 mile below San Juan Hot Springs. Comment
  RSA715245  Dudleya viscida A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33053 Orange San Juan Canyon, from Lower San Juan Picnic Area to c. 1 mile downstream, parallel to Hwy 74 and near Riverside Co. line 366 Comment
  CAS-BOT-BC197029  Echinochloa colona Ira L. Wiggins 1965-10-2 20269 Orange Curbway at corner of Longview Drive and Dorothy Lane, Fullerton Comment
  RSA773553  Echinochloa colona Fred M. Roberts 2008-6-3 7031 Orange Lomas de Santiago: Loma Ridge, East Fork Rattlesnake Canyon, ca. 2.6 km NE Rattlesnake Reservoir spillway and 2.4 km ENE Bee Peak 225 Comment
  UCR219856  Echinochloa colona Fred M. Roberts 2008-6-3 7031 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, East Fork Rattlesnake Canyon, c. 2.6 km NE Rattlesnake Reservoir spillway and 2.4 km ENE Bee Peak 225 Comment
  RSA50  Echinochloa crus-galli Thos Howell 1927-7-18 424 Orange Santa Ana River, Rancho Santa Ana. 152 Comment
  RSA703124  Echinochloa crus-galli R. E. Riefner Jr. 2004-8-8 4 -371 Orange City of Anaheim, Santa Ana River bottom, E of 57 Freeway between Orangewood Street and Chapman Avenue. 41 Comment
  POM202732  Echinochloa muricata var. microstachya L. M. Booth 1932-7-25 1314 Orange Santa Ana River 2 miles from ocean. Comment
  UC814517  Echinodorus berteroi I. M. Johnston 1918-9-3 2151 Orange Laguna Canyon San Joaquin Hills, Laguna Canyon 106 Comment
  RSA0127350  Echium candicans Fred M. Roberts 2016-5-20 8058 Orange City of Irvine: San Joaquin Hills, Turtle Rock Community along Ridge Route Road, 1.0 km SE summit of French Hill and just NE intersection with Hillsborough Drive. 122 Comment
  RSA528090  Echium candicans A. C. Sanders 1990-10-6 10183 Orange Newport Bay, North Star County Beach area on the SW end of the bay, ca. 2 km inland of Hwy 1 1 Comment
  SD133156  Echium fastuosum A. C. Sanders 1990-10-6 10183 Orange Newport Bay, North Star County Beach area on the southwest end of the bay, ca. 2 km inland of Highway 1 0 Comment
  RSA665953  Elatine brachysperma Fred M. Roberts, Michelle Lee, Kristen Szabo 2001-4-13 5424 Orange Rancho Mission Viejo: South of San Juan Creek, 0.6km WNW Median Rancho Survey Marker. PCR Vernal Pool 2. 183 Comment
  RSA799624  Eleocharis acicularis Justin M. Wood 2011-4-12 3664 Orange South Coast: City of Costa Mesa. Fairview Park, just WNW of Marison Special Education Center. 24 Comment
  UC217855  Eleocharis macrostachya P. A. Munz 1922-9-2 6354 Orange Laguna Canyon, ponds in Comment
  RSA789589  Eleocharis montevidensis var. parishii Robert F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49633 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs Comment
  POM1361  Eleocharis palustris Phillip A. Munz 1918-5-4 2210 Orange Laguna Beach. Comment
  SD245178  Eleocharis parishii R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49571 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway(74). San Juan Creek. Comment
  SEINET7587045 Image available Eleocharis radicans Steve Boyd, Tim Ross 1994-9-14 8354 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area of the Cleveland National Forest, Lucas Canyon just downstream of Lucas Canyon Trail Crossing. 305 Comment
  RSA699894  Elymus glaucus Fred M. Roberts 2003-5-1 5687 Orange Rancho Mission Viejo: Donna o'Neill Land Conservancy, Cristianitos Cyn., 0.56km SSw. Gato Gate and 0.21km W of Cristianitos Rd. 96 Comment
  SD255053  Elymus glaucus subsp. glaucus Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49815 Orange Santa Ana Mountains: Trabuco Canyon Comment
  RSA65  Elymus multisetus J. T. Howell 1927-6-8 53 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  CAS-BOT-BC412641  Emex spinosa E. L. Paddock 1943-5-26 12740 Orange Frank Anderson grove, Manchester, 1/8 mile south of Midway Drive, Anaheim Comment
  RSA731987  Emmenanthe penduliflora A. C. Sanders, Fred M. Roberts 2008-4-8 34776 Orange Peninsular Range: Lomas de Santiago, SSE os f Santiago Reservoir on Harding Truck Trail at Dripping Springs Loop, above Limestone Canyon. 475 Comment
  RSA734990  Emmenanthe penduliflora A. C. Sanders, Fred M. Roberts, Amber O Neal 2008-5-9 35280 Orange Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir. 300 Comment
  UCR191237  Emmenanthe penduliflora A. C. Sanders, Fred M. Roberts 2008-4-22 34987 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
  OBI63088  Encelia californica R. K. Brummitt 1998-5-23 19990 Orange Newport Beach, by marina; 10 Comment
  RSA0073641  Encelia californica Fred M. Roberts 2010-3-12 7177 Orange Southeast Coast: DANA POINT HEADLANDS: Harbor Point Park, South of Green Lantern and west of Dana Point Harbor, c.a. 150 meters SE Interpretive Center. 50 Comment
  RSA614340  Encelia californica B. Pitzer 1996-4-30 2792 Orange Crystal Cove State Park, S of City of Irvine on State Hwy 1 (Pacific Coast Hwy). Bluffs above the beach. Comment
  RSA660043  Encelia californica Mike Maculsay 1981-4-11 2 Orange Carbon canyon Road, CA Hwy 142, 3.3 miles west of town of Sleepy Hollow, south sside of road in Coastal Sage Scrub. 305 Comment
  RSA681948  Encelia californica Fred M. Roberts, David E. Bramlet 2003-3-7 5569 Orange Donna O'Neill Land Conservancy; Ridge west of Christianitos Canyon, Middle Ridge Trail, 1.1km NW Gato Gate. 178 Comment
  UC494726  Encelia californica Philip A. Munz 1932-3-29 12185 Orange Costa Mesa Costa Mesa (sea bluffs) Comment
  UCR140798  Encelia californica Robin G. Marushia 2004-5-4 014 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
  UCR223984  Encelia californica Dick Newell, Don Millar 2011-3-1 071 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Hicks Canyon Haul Road, above Jeffrey Rd. and below Hwy 241 crossing 175 Comment
  UCR230243  Encelia californica Dick Newell, Don Millar 2011-3-15 082 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Agua Chinon Wash 219 Comment
  UCSB44180  Encelia californica Henneman, J. 1977-5-21 Orange Newport Back Bay Comment
  IRVC653  Encelia californica B. T. Gittins, R. Hobson 1965-4-10 Orange Comment
  RSA25948  Encelia farinosa var. farinosa E. R. Johnson 1941-5-16 s.n. Orange Rancho Santa Ana, River bottom near Old Peak Orchard. Comment
  RSA496  Epilobium ciliatum subsp. ciliatum J. T. Howell 1927-7-5 267 Orange West side, Rancho Santa Ana [Botanic Garden]. 152 Comment
  RSA588523  Epilobium ciliatum subsp. ciliatum M. B. Dunkle 1934-6-18 3982 Orange San Juan Canyon; Southern Coastal 305 Comment
  RSA754075  Epipactis gigantea A. C. Sanders, Fred M. Roberts 2008-7-16 35844 Orange Lomas de Santiago, Dripping Springs off Limestone Canyon, c. 7.5 mi. ESE of Tustin 391 Comment
  UCSB47992  Epipactis gigantea Roberts, Fred 1980-6-25 Orange Santa Ana Mtns; San Juan Canyon; below Calif. Rte. 74; 2.4 km ENE San Juan Guard Station; 0.3 km WSW BM 1100 290 Comment
  UCR174229  Equisetum arvense A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33038 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
  RSA699857  Equisetum hyemale var. affine R. H. McArthur 1934-3-1 s.n. Orange Santa Ana River at 1st Street Comment
  RSA790024  Equisetum hyemale var. affine R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49565 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74) Comment
  RSA12  Equisetum laevigatum J. T. Howell 1927-6-6 42 Orange Santa Ana River bottom, Rancho Santa Ana 152 Comment
  UCR195014  Equisetum laevigatum A. C. Sanders, Fred M. Roberts 2008-8-7 35987 Orange Peninsular Range; Santa Ana Mtns., lower Weir Canyon, at narrow gorge c. 0.6 mi. above mouth of cyn at Irvine Ranch gate 192 Comment
  IRVC14871  Equisetum laevigatum Gordon A. Marsh, K. G. Marsh 1976-7-8 s.n. Orange Santa Ana mtns: 2.7 mi e of San Juan Guard Station on CA 74. Peninsular Ranges Comment
  UC2042144  Eragrostis mexicana subsp. virescens R. F. Thorne with E. W. Lathrop, W. Wisura 1977-7-8 49567 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74) Comment
  RSA436021  Eremocarpus setiger F. R. Fosberg 1931-6-21 S- 5081 Orange Lower Santiago Canyon. Comment
  RSA0105523  Eriastrum densifolium subsp. austromontanum M. Clinton 1931-6-24 s.n. Orange South Fork S.A. River. Comment
  LA106815  Eriastrum densifolium subsp. sanctorum John Thomas Howell; 1927-8-13 2985 Orange Santa Ana Canyon Comment
  JEPS9642  Eriastrum sapphirinum A. G. Vestal 1947-7-12 Orange Tributary of Trabuco Creek Comment
  RSA0122937  Eriastrum sapphirinum A. C. Sanders, Fred M. Roberts 2008-6-17 35505 Orange Weir Canyon, Windy Ridge Rd., saddle on ridge at head, above the Eastern Transportation Corridor. 400 Comment
  UCR144768  Eriastrum sapphirinum Scott D. White, Michael Honer 2003-5-29 9430 Orange Santa Ana Mtn foothills, Rancho Mission Viejo. Hills above Canada Gobernadora on west side of canyon, c. 1 air mile north of Ortega Hwy. 152 Comment
  UCR193057  Eriastrum sapphirinum A. C. Sanders, Fred M. Roberts 2008-6-17 35505 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, Windy Ridge Rd., saddle on ridge at head, above the Eastern Transportation Corridor 400 Comment
  RSA769342  Eriastrum sapphirinum E. W. Lathrop 1974-6-27 7419 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  UCSB52426  Ericameria arborescens Roberts, Fred 1982-9-20 Orange Santa Ana Mtns.; San Juan Trail; 1.1 km SE Blue Jay Campground; 2.5 km SSE Los Pinos Peak 997 Comment
Read comments
Jan 25 2020
  UCR203875  Ericameria cuneata var. cuneata R. E. Riefner Jr. 2007-6-29 07- 285 Orange Santa Ana Mountains, Irvine Ranch Reserve, Fremont Canyon Conservation Easement, east fork of Fremont Canyon, Black Star SCE Road 613 Comment
  JEPS19147  Ericameria palmeri var. pachylepis John Thomas Howell 1927-9-24 3114 Orange Santa Ana Canon Rancho Santa Ana, Santa Ana Canon 152 Comment
  OBI5705  Ericameria palmeri var. pachylepis Carl B. Wolf 1931-10-30 2504 Orange Hiils on N side of Santa Ana cyn. (Rancho Santa Ana Botanic Garden-ner marker no 14E 9) 207 Comment
  RSA151083  Ericameria palmeri var. pachylepis Peter H. Raven 1961-10-15 16854 Orange Santa Ana Canyon just W of Hwy 55, at W end of Peralta Hills 137 Comment
  RSA751525  Ericameria palmeri var. pachylepis A. C. Sanders, Fred M. Roberts 2008-8-7 35996 Orange Weir Canyon, along Windy Ridge Rd. at wash crossing, 0.95 mi. SE of Walnut Canyon Reservoir 242 Comment
  CAS-BOT-BC131636  Ericameria parishii var. parishii James R. Shevock 1976-10-28 5351 Orange Along the north slope of Pleasants Peak off of FS road 3S04, Santa Ana Mts., Cleveland National Forest 1219 Comment
  RSA708533  Ericameria parishii var. parishii Fred M. Roberts, Robert L. Allen, Chris Barnhill 2004-8-21 6106 Orange Caspers Wilderness Park, Hot Springs Cyn., Hot Springs Trail, c.a. 0.16km WSW San Juan Ranger Station, north of SR 74. 212 Comment
  HSC25252  Ericameria pinifolia Richard Spjut 1972-2-21 2213 Orange Along Hwy. 74 in the Cleveland National Forest, Santa Ana Mtns. 610 Comment
  UCR58719  Ericameria pinifolia Reid Moran, G. Marsh, Jack L. Reveal 1977-6-13 24231 Orange Willow Canyon, tributary of Laguna Canyon. 125 Comment
  RSA696782  Erigeron R. H. McArthur 1934-5-19 s.n. Orange Trabuco Canyon. Comment
  UCR215289  Erigeron foliosus var. foliosus Fred M. Roberts, D. E. Bramlet 2008-5-13 6956 Orange Santa Ana Mountains, upper Weir Canyon, central fork, 3.5 km NE of Robbers Peak 369 Comment
  RSA0061173  Erigeron foliosus var. foliosus Robt. Allen 2007-8-11 s.n. Orange Santa Ana Mountains region: Northwest-facing flank of Santiago Peak, along North Main Divide Road. 1675 Comment
  RSA550599  Eriodictyon crassifolium Fred M. Roberts 1989-4-26 4315 Orange Lomas de Santiago: Lower Santiago Canyon, 10.1 km SW Sierra Peak, ca. 1.3 km NW Irvine Lake spillway. 195 Comment
  UCD169761  Eriodictyon crassifolium R. F. Thorne; C. W. Tilforth, E. W. Lathrop 1977-4-27 49682 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. 457 Comment
  POM9827  Eriodictyon crassifolium P. A. Munz, R. D. Harwood 1920-4-24 3761 Orange Sierra [Freemont] Canyon 366 Comment
  POM18124  Eriogonum elongatum P. A. Munz 1923-9-7 7740 Orange Santiago Peak in Santa Ana Mountains. 1707 Comment
  POM184315  Eriogonum elongatum L. M. Booth 1932-8-9 1370 Orange Newport Lagoon, above 3 miles from ocean, above the dirt road. Comment
  UCR103282  Eriogonum elongatum B. G. Pitzer, T. Tennant 1997-11-8 3369 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
  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
  RSA393516  Eriogonum fasciculatum M. B. Dunkle 1933-4-9 3271 Orange Dana Point. Comment
  RSA787217  Eriogonum fasciculatum J. D. Olmsted 1959-8-26 833 Orange Drainage area to Santiago Reservoir. East of Santiago Reservoir. Mouth of Black Star Canyon. 366 Comment
  SEINET3386503 Image available Eriogonum fasciculatum var. fasciculatum Joseph Ewan 1932-7-28 7705 Orange Corona Del Mar Comment
  SEINET6418402  Eriogonum fasciculatum var. fasciculatum Thomas C. Hensel 1973-7-5 251 Orange Hillside adjacent to southern end of Santa Ana Dr. Laguna Beach 229 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
  UCR131885  Eriogonum fasciculatum var. foliolosum J. Mallory, V. McCoy 1995-7-3 6454- 98 Orange Santa Ana Mountains: Blind Canyon, c. 0.5 mi. east of confluence with Santiago Canyon, on a W-facing slope. north of Irvine Lake 300 Comment
  UCSB48025  Eriogonum fasciculatum var. foliolosum Roberts, Fred 1980-7-7 Orange Santa Ana Mtns; San Juan Canyon, Calif. Rte. 74, 2.2km ENE San Juan Guard Station; 0.6km W BM 1100 305 Comment
  SEINET11946392  Eriogonum fasciculatum var. foliolosum S. A. Thompson, Rawlins, J. E. 1988-8-27 5266 Orange Cleveland National Forest, 3.8 mi E of San Juan Hot Springs on CA 74 370 Comment
  RSA542470  Eriogonum fasciculatum var. polifolium Karlin G. Marsh 1989-6-23 s.n. Orange Laurel Springs, Harding Truck Trail. 316 Comment
  RSA7391  Eriogonum fasciculatum var. polifolium Carl B. Wolf 1933-8-24 5402 Orange Summit of Santiago Peak, Santa Ana Mountains. 1732 Comment
  CAS-BOT-BC253477  Eriogonum gracile L. M. Booth 1933-8-26 1386 Orange Newport Lagoon Comment
  JEPS56922  Eriogonum gracile Lawrence M. Booth 1932-8-9 1369 Orange Newport Bay Comment
  UC537258  Eriogonum gracile L. M. Booth 1933-8-26 1386 Orange Newport Lagoon 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
  POM201860  Eriogonum gracile var. gracile L. M. Booth 1933-8-26 1386 Orange Newport Lagoon. Comment
  RSA542469  Eriogonum parvifolium Fred M. Roberts 1988-10-12 4160 Orange San Clemente State Park: ca. 0.3km SE end of Ave. Califia along Santa Fe RR. 3 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-BC297327  Eriophyllum confertiflorum L. M. Booth 1932-5-12 1042 Orange Newport Bay Comment
  RSA734656  Eriophyllum confertiflorum A. C. Sanders, Fred M. Roberts, A. O'Neal, David E. Bramlet 2008-5-9 35316 Orange Weir Canyon, along fire line/bulldozer cut, c. 1.5 mi. east of Walnut Cyn Reservoir. 346 Comment
  SEINET7067534  Eriophyllum confertiflorum A. G. Vestal 1947-6-12 s.n. Orange Santiago Creek Valley north of Santa Ana. Coordinate datum: NAD27. UTM Zone 11, 418529mE, 373676mN. Comment
  RSA783824  Eriophyllum confertiflorum var. confertiflorum J. D. Olmsted 1959-5-1 531 Orange Santa Ana Mt. Range: Drainage to Santa Ana River . 100 yards NW of Rattlesnake Rock. 0.5 mi N of Hidden Ranch in Black Star Canyon. 4-5 mi Irvine Lake Reservoir to the west. 732 Comment
  UC507177  Eriophyllum confertiflorum var. confertiflorum L. M. Booth 1932-5-12 1042 Orange Newport Bay Comment
  RSA791467  Erodium botrys D. M. McF 1956-4-11 6 Orange Moulton Ranch 152 Comment
  RSA734013  Erodium cicutarium A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34622 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir. 366 Comment
  RSA654263  Eschscholzia californica P. Shirokawa 1998-4-24 1 Orange Cleveland National Forest - Trabuco Ranger District, 2.35 miles from Ortega Highway (State Highway 74) on North Main Divide Road 960 Comment
  SEINET7879573 Image available Eschscholzia californica Cathy Coulson 1959-1 s.n. Orange Anaheim, Orange County, California, N. E. corner of front yard, 2454 W. Broadway. Comment
  UCSB18078  Eschscholzia californica Shaw, Merrilee 1963-4-10 Orange Fernlead Drive, at intersection with Bayshore Drive, 1/2 mile S of U.S. Highway 101, Corona del Mar 24 Comment
  UCSB39756  Eschscholzia californica Levine, N. 1977-5-1 Orange Intersection of Malverne and Meadowbrook Way on south side of Malverne, Buena Park 30 Comment
  RSA542456  Eschscholzia californica var. peninsularis Fred M. Roberts 1988-2-9 3783 Orange Lomas De Santiago, Loma Ridge, Upper Hicks canyon rim, 0.7 km N Bee Survey Mark. 469 Comment
  CDA5164  Eucalyptus camaldulensis D. G. Kelch 2006-12-9 6 .555 Orange Irvine. University Dr along tidal creek just E of I-73. Comment
  RSA0010837  Eucalyptus camaldulensis T. B. Salvato, Billy Deane 2006-10-16 1928 Orange Irvine, San Diego Creek flood control channel, between Michelson Driveand the 405 Fwy. 9 Comment
  CDA5160  Eucalyptus erythrocorys R. E. Riefner Jr. 2007-9-27 07 -414 Orange City Laguna Niguel, along Forbes Road near Crown Valley Parkway; west of I-5 Freeway. 0 Comment
  UCR132571  Eucalyptus megacornuta Robert DeRuff 2001-4-16 527 Orange Southern Coast, Newport Back Bay, Shellmaker Island 1 Comment
  RSA609  Eucrypta chrysanthemifolia J. T. Howell 1927-6-21 180 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA794330  Eucrypta chrysanthemifolia Justin M. Wood 2010-3-31 1447 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
  UCR250854  Eucrypta chrysanthemifolia Dick Newell, Don Millar 2014-4-15 361 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Agua Chinon wash at the lower gate next to the 241 toll road 328 Comment
  JEPS1720  Eucrypta chrysanthemifolia var. chrysanthemifolia L. M. Booth 1932-5-19 1063 Orange Newport Bay Comment
  SBBG40450  Eucrypta chrysanthemifolia var. chrysanthemifolia J. Ingram 1960-3-29 265 Orange 2 mi above O'Neill Park, Trabuco Cyn Comment
  UCD142560  Euphorbia albomarginata Ira L. Wiggins 1965-11-5 20323 Orange Near corner of Downling St. and Crowther Ave.; 1/2 mi. S of Placentia. Comment
  UCR186135  Euphorbia maculata T. B. Salvato, Katie Kurtz 2006-10-15 1917 Orange South Coast, Irvine, San Diego Creek flood control channel, near Michelson Drive and Harvard Avenue 6 Comment
  CLARK-A1528-2702  Euphorbia misera John C. Roos 1937-9-1 2548 Orange South Laguna Comment
  RSA0038515  Euphorbia misera R. E. Riefner Jr. 2012-10-16 12 -518 Orange city of Dana Point, Dana Point Harbor, 'Bluff Top Trail' located near Camino Capistrano and Violet Lantern Streets 35 Comment
  RSA0106893  Euphorbia misera R. E. Riefner Jr. 2012-12-5 12 -587 Orange City of Dana Point, Dana Point Harbor, Dana Harbor Drive, near Cove Road. 8 Comment
  SD126574  Euphorbia misera Virginia S. Moran, Karen L. Miner 1989-1-29 Orange city of Newport Beach, Corona de Mar State Beach, Little Corona, ca. 1000 meters east of Poppy Ave., on SSW-facing sandy ocean bluff 24 Comment
  UCD142438  Euphorbia misera C. W. Tilforth; B. Busenberg 1979-11-14 1925 Orange Dana Point; north of Marina parking lot. Comment
  UCD54364  Euphorbia misera Grady L. Webster 1966-12-11 7479 Orange ocean bluffs at Dana Point. Comment
  UCR246484  Euphorbia misera R. E. Riefner Jr. 2013-1-16 13- 516 Orange South Coast, city of Newport Beach, vicinity of Poppy Ave. and Ocean Blvd., coastal bluff at Little Corona Beach 6 Comment
  RSA716774  Euphorbia peplus Fred M. Roberts, Michelle Balk, Robert Allen, Chris Barnhill 2004-6-19 6065 Orange Santa Ana Mtns: Holy Jim Cyn.: Holy Jim Trail, 3.5km SE summit of Santiago Peak. 610 Comment
  SD181550  Euphorbia peplus Louis C. Wheeler 1946-3-6 6173 Orange Newport Bay; mainland north of east end of Balboa Island. 3 Comment
  UCR103788  Euphorbia peplus Scott D. White 1997-2-19 4693 Orange Santa Ana Mtns, above Modjeska Canyon; proposed water tank site 488 Comment
  RSA697594  Euphorbia peplus James Snow 1929-3-28 s.n. Orange SantaAna Gardens Comment
  UCSB56679  Euphorbia peplus Roberts, Jr., Fred 1984-2-4 Orange South Laguna; Aliso Canyon near mouth, 0.7 km. WNW Aliso Peak 15 Comment
  RSA697597  Euphorbia polycarpa Anonymous s.n. Orange Orange County park Comment
  RSA732155  Euphorbia spathulata A. C. Sanders, Fred M. Roberts 2008-4-22 35028 Orange Santa Ana Mtns.: Lomas de Santiago, Limestone Canyon, c. 2 miles SW of Silverado 1200 Comment
  UCR191012  Euphorbia spathulata A. C. Sanders, Fred M. Roberts 2008-4-22 35028 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Limestone Canyon, c. 2 miles SW of Silverado 396 Comment
  SEINET6186107  Euthamia occidentalis R. E. Riefner Jr. 2006-1 06 -666 Orange City of Newport Beach, urban creek draining into San Diego Creek at confluence with Newport Bay; San Diego Creek at SR-73 overpass. USGS QUAD: San Joaquin Gun Club, Tustin 6 Comment
  RSA91147  Euthamia occidentalis F. W. Peirson 1924-10-19 5243 Orange Wintersberg. Comment
  RSA942  Euthamia occidentalis J. T. Howell 1927-10-22 765 Orange Santa Ana River bottom, Rancho Santa Ana 152 Comment
  SD255109  Euthamia occidentalis R. F. Thorne 1977-11-21 49982 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp. Comment
  UCSB47952  Festuca microstachys Roberts, D. 1980-5-3 Orange 2.0 km West Trabuco peak (on Main divide Truck trail) 125 Comment
  UCR223964  Festuca myuros Fred M. Roberts 2008-4-9 6854 Orange South Coast, Dana Point, Dana Point Headlands, CNLM Preserve, near Outlook 2, 0.7 km west of Marine Institute, Dana Point Harbor 52 Comment
  UCR209670  Festuca myuros var. myuros Fred M. Roberts 2008-4-16 6911 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
  SD127873  Festuca perennis Richard Marin 1971-5-11 M 71 83 Orange Corner of MacArthur Blvd. and University Drive, Irvine 0 Comment
  UCR239640  Festuca pratensis Fred M. Roberts 2012-5-9 7559 Orange Santa Ana Mountains, Lake Forest, along Serrano Creek hiking trail, 1.0 m south-southwest of intersection of Commercentre and Dimension Drives 171 Comment
  CAS-BOT-BC474742  Ficus carica R. E. Riefner, Jr. 2015-10-26 15 -423 Orange City of Laguna Beach, along Cliff Dr. at La Brea St. 24 Comment
  CAS-BOT-BC502073  Ficus microcarpa R. E. Riefner, Jr. 2015-8-27 15 -366 Orange City of Newport Beach, Corona del Mar, long Marguerite Ave., near Seaview Ave. 30 Comment
  RSA0088636  Ficus microcarpa R. E. Riefner Jr. 2014-8-8 14 -273 Orange City of Laguna Beach, E side of South Coast Highway near Diamond St. 25 Comment
  RSA0088637  Ficus microcarpa R. E. Riefner Jr. 2015-8-27 15 -359 Orange City of Newport Beach, Corona del Mar, on Marguerite Ave. between Fifth Ave. and Fourth Ave. 41 Comment
  RSA0113947  Ficus microcarpa R. E. Riefner Jr. 2015-7-18 15 -198 Orange City of Costa Mesa, Anton Blvd. on ramp to 405 Freeway, ca. 0.3 mi from interesction of Bristol St at Sunflower Ave. 11 Comment
  RSA0116293  Ficus microcarpa R. E. Riefner Jr. 2008-10-22 08 -312 Orange City of Laguna Beach, vicinity of West St and Pacific Coast Hwy. 8 Comment
  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
  UCR267278  Ficus microcarpa R. E. Riefner Jr. 2014-8-8 14- 273 Orange City of Laguna Beach, east side of South Coast Highway near Diamond St. 25 Comment
  UCR209353  Filago californica Fred M. Roberts 2008-4-8 6851 Orange Lomas de Santiago, Loma Ridge, Upper Dripping Springs Cnyn, 1.0 km northeast of Bee Peak, Irvine Ranch Conservancy 458 Comment
  CLARK-A1528-140  Foeniculum vulgare Brian L. Estes 1960-7-23 Orange San Juan Capistrano Comment
  RSA524  Foeniculum vulgare J. T. Howell 1927-7-27 500 Orange Near ranch houses, Rancho Santa Ana 152 Comment
  LA105751  Frangula californica Reid Moran; 1975-7-18 22598 Orange Santa Ana Mountains, Near Yaeger Mine, upper Trabuco Canyon 725.0 Comment
  RSA186312  Frankenia grandifolia Joseph A. Ewan 1932-7-28 7701 Orange Corona Del Mar Comment
  RSA697030  Frankenia grandifolia Keith E. Hoffmaster 1927-6-13 s.n. Orange Near Santa Ana. Comment
  RSA234534  Frankenia grandifolia var. grandifolia James Henrickson 1970-7-25 5031 Orange 3.5 miles NW of Huntington Beach on sandy margin of Bolsa Bay, 1/4 mile E of Warner Ave. along Pacific Coast hwy. 1 Comment
  IRVC24106  Frankenia salina Fred M. Roberts 1985-9-6 2220 Orange Laguna Beach; Sycamore Hills along Laguna Cyn Rd; N of jct with El Toro Road. Southern Coastal 75 Comment
  LA205391  Frankenia salina Lawrence M. Booth; 1932-7-27 1324 Orange Newport Beach, Corona del Mar Comment
  POM293117  Frankenia salina Lyman Benson 1946-5-13 12099 Orange Corona del Mar, Pacfic Ocean drainage area 50 Comment
  UC1122123  Frankenia salina A. Lewis Apr 1934 390 Orange Celery Corona Quad. 0 Comment
  CAS-BOT-BC217643  Fraxinus dipetala Munz; Street; Williams 1919-5-3 2667 Orange Santa Ana River Canyon Comment
  CAS-BOT-BC402193  Fraxinus dipetala R. F. Thorne; C. W. Tilforth; E. W. Lathrop 1977-4-27 49687 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  RSA1068  Fraxinus dipetala J. T. Howell 1927-7-26 482 Orange Claymine Canyon near Sierra Peak. 213 Comment
  RSA1456  Fraxinus dipetala E. R. Johnson 1929-4-11 1257 Orange Sierra Peak Trail. Comment
  SBBG98328  Fraxinus dipetala E. Crow 1929-4-7 287 Orange E end of Corona Skyline drive Comment
  UCR119309  Fraxinus dipetala R. E. Riefner Jr. 2000-2-19 20- 119 Orange Santa Ana Mountains, North Ranch Policy Plan Area. Fremont Canyon: north of Santiago Creek and immediately north of major stream fork 305 Comment
  SBBG128669  Fraxinus dipetala R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49687 Orange Sierra Peak; Santa Ana Mtns 900 Comment
  RSA751318  Fritillaria biflora A. C. Sanders, Fred M. Roberts 2008-5-6 35270 Orange Lomas de Santiago, upper Limestone Canyon, 2.9 mi. NNW of El Toro 366 Comment
  RSA773508  Fritillaria biflora Fred M. Roberts 1999-4-26 5202 Orange Lomas de Santiago: ridge between Santiago Creek wash and Limestone Canyon, 3.8 km W Bee Peak and 1.7 km SSE Silverado School 409 Comment
  UCR209378  Fritillaria biflora Fred M. Roberts, Linda Farley 2008-3-28 6822 Orange Santa Ana Mountains, Upper Weir Canyon, Irvine Ranch Conservancy, east fork along ridge just west of SR 241, 3.4 km east of Robber's Peak 457 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
  RSA184103  Fumaria parviflora I. L. Wiggins 1965-12-5 20366 Orange 2 miles east of Atwood on north side of Orangethorpe Ave. Comment
  OBI42766  Fumaria parviflora Larry Summers 1983-4-18 s.n. Orange Tustin, Irvine Ranch, Field 120 at the intersection of Bryan and Culver. At the edge of a tomato field 46 Comment
  RSA201607  Fumaria parviflora Unspecified 1969-3-2 s.n. Orange East of Trabuco and Yale roads 91 Comment
  RSA737491  Funastrum cynanchoides var. cynanchoides D. E. Bramlet 2008-5-16 4273 Orange Agua Chinon Wash . Site is located 3m north of the access road and 1.1km NE of Hwy 241 229 Comment
  CHSC106536  Funastrum cynanchoides var. hartwegii Robt. Allen; Alison Linden 2007-5-17 Orange Irvine, Turtle Rock community, Chaparral Park, due N of Turtle Rock Dr, due E of Highgate terrace. UTM Zone 11S; 3722013N 0424400E. 136 Comment
  RSA567  Funastrum cynanchoides var. hartwegii J. T. Howell 1927-6-3 19 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA0013915  Galium angustifolium Fred M. Roberts 2012-5-10 7579 Orange San Joaquin Hills: Buck Gully, south tributary, north slope Pelican Hill, just north of Pelican Hills Drive, 0.7 km N Pelican Hill summit. 154 Comment
  RSA700194  Galium angustifolium Stephen Bruff s.n. Orange Lemon Heights. Comment
  RSA542397  Galium angustifolium subsp. angustifolium Fred M. Roberts, Dar A. Roberts 1989-3-22 4218 Orange Aliso-Wood Regional Park: Lower Wood Canyon, 3.6km SSE Moulton Peak. 38 Comment
  RSA647956  Galium aparine Mark Breidenbaugh, Caralisa Breidenbaugh 1992-5-24 32 Orange 1000 ft. northwest of Chino Hills State Park Boundary. 244 Comment
  SBBG7296  Galium aparine H. and M. Dearing 1937-3-12 1861 Orange Santa Ana Cyn Comment
  UCSB12531  Galium aparine Whittington, M. 1962-4-20 Orange South side of Back Newport Ba, about 250 yards south of saltworks, Newport Comment
Read comments
Aug 15 2016
  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
  UCSB56680  Galium nuttallii subsp. nuttallii Roberts, Fred 1984-1-29 Orange Laguna Niguel: Niguel Hill, 1.1 km. ENE Aliso Peak; 2.0 Km. SW Alicia Fire Station 260 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
  RSA562752  Galium parisiense Steve D. Boyd, Tim S. Ross 1992-5-19 7428 Orange Southern Santa Ana Mountains San Mateo Canyon Wilderness Area. Western edge of the wilderness along Lucas Canyon Trail from access road to Rancho Carrillo (7S06) N into Aliso Canyon. 366 Comment
  RSA683078  Galium porrigens Scott D. White, Amanda Duchardt 2003-5-1 9162 Orange Santa Ana Mountain Foothills: Slopes above west side of Trampas Canyon. 107 Comment
  RSA698801  Galium porrigens var. porrigens Unspecified s.n. Orange Lower Trabuco. Comment
  RSA749290  Galium porrigens var. porrigens Fred M. Roberts 1999-4-2 5168 Orange Lomas de Santiago: Loma Ridge, Dripping Springs Spur Rd., 2.3 km W Silverado Sch. and 5.1 km NW Bolero Lookout. 450 Comment
  POM201748  Galium trifidum var. pacificum L. M. Booth 1932-7-4 1244 Orange Newport Lagoon. Comment
  SBBG128667  Garrya flavescens R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49700 Orange Sierra Peak; n Santa Ana Mtns 900 Comment
  RSA53  Gastridium phleoides J. T. Howell 1927-6-17 163 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  POM202591  Gastridium phleoides L. M. Booth 1932-5-19 1082 Orange Newport Bay. Comment
  RSA586253  Gastridium phleoides R. E. Riefner 1994-9-6 95 -560 Orange San Clemente State Beach Comment
  UCR192991  Gastridium ventricosum A. C. Sanders, Fred M. Roberts 2008-6-17 35468 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Agustine staging area near Limestone Canyon Rd. gate at Santiago Cyn Rd. 260 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
  POM248098  Gaura odorata E. Johnson 1939-8-5 s.n. Orange Brea. Comment
  CDA5237  Gaura sinuata T. C. Fuller 1962-6-7 8873 Orange Veeh ranch, north of El Toro, ca. 11 miles southeast of Tustin. 0 Comment
  RSA689409  Geranium carolinianum Scott D. White, Amanda Duchardt 2003-4-10 9012 Orange Santa Ana Mountain Foothills: Ridges & east-facing canyons above Trampas Canyon. 122 Comment
  RSA732063  Geranium carolinianum A. C. Sanders, Fred M. Roberts 2008-4-8 34754 Orange Peninsular Range; Lomas de Santiago, Loma Ridge, SSE of Santiago Reservoir on Loma Ridge Spur Rd., above Dripping Springs Loop Rd. 457 Comment
  UCR192636  Geranium carolinianum A. C. Sanders, Fred M. Roberts 2008-4-8 34754 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, SSE of Santiago Reservoir on Loma Ridge Spur Rd., above Dripping Springs Loop Rd. 457 Comment
  RSA797025  Geranium incanum var. multifidum R. E. Riefner Jr. 2012-6-16 12 -404 Orange City of Dana Point, Dana Point Harbor Drive at Island Way. 11 Comment
  UCD169463  Geranium incanum var. multifidum R. E. Riefner Jr. 2012-6-30 12- 285 Orange City of Costa Mesa, Talbert Regional Park, general vicinity of Balboa Blvd. and 19th Street. 5 Comment
  UCR240189  Geranium incanum var. multifidum R. E. Riefner Jr. 2012-12-5 12- 588 Orange South Coast, city of Dana Point, Dana Point Harbor, Dana Harbor Drive near Cove Road 9 Comment
  UCR241096  Geranium incanum var. multifidum R. E. Riefner Jr. 2012-6-30 12- 285 Orange South Coast, City of Costa Mesa, Talbert Regional Park, general vicinity of Balboa Blvd. and 19th St. 5 Comment
  RSA636  Gilia angelensis J. T. Howell 1928-2-25 836 Orange Near Bee Canyon, Rancho Santa Ana. 152 Comment
  SEINET7073547  Gilia angelensis A. G. Vestal 1963-3-27 s.n. Orange Ridge above Cai+-ada Gobernadora. Coordinate datum: NAD27. Comment
  UC133970  Gilia angelensis C. F. Baker 1904-4-1 4111 Orange Anaheim Comment
  SEINET6969922  Gilia angelensis W. P. Vestal, A. G. Vestal 1955-3-24 3460 Orange Trabuco Canyon, about 5 miles east of El Toro. Comment
  RSA749309  Gilia capitata subsp. abrotanifolia Fred M. Roberts 1999-4-22 5195 Orange Lomas de Santiago: ridges between Limestone Cyn. and Santiago Creek wash opposite mouth Williams Cyn., 2.0 km SE Silverado Sch. and 2.2 km NNW Bolero Lookout. 400 Comment
  RSA628623  Gilia capitata subsp. abrotanifolia Sandy Leatherman, Fred Roberts, Brian Leatherman, Trish Smith 1998-5-23 13 Orange Black Star Canyon: Spur Road off of Black Star Canyon Road. 335 Comment
  RSA698358  Gilia tricolor Kenneth Beard s.n. Orange Silverado Canyon. Comment
  RSA469704  Gilia tricolor subsp. diffusa M. B. Dunkle 1935-2-10 4330 Orange El Toro 61 Comment
  UC864091  Glycyrrhiza lepidota Louis C. Wheeler 1932-7-9 942 Orange 5 mi below Prado; Santa Ana River 152 Comment
  IRVC441  Gnaphalium bicolor B. Savage 1965-5-15 Orange Newport Beach Comment
  UCR174027  Gnaphalium californicum A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33008 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
  RSA590945  Gnaphalium californicum Fred M. Roberts 1991-5-2 4780 Orange San Joaqui Hills, Laguna Canyon, Laguna Laurel, Just W of Laguna Canyon Road, 2km N jct El Toro Road, 4.5km E Signal Peak. 110 Comment
  POM4593  Gnaphalium chilense P. A. Munz 1918-5-4 2185 Orange Laguna Comment
  UCR150566  Gnaphalium leucocephalum Scott D. White, Matt Carlton 2003-11-20 9874 Orange South Coastal Plain, Santa Ana Mtn foothills. San Juan Creek in San Juan Capistrano 37 Comment
  RSA603356  Gnaphalium luteoalbum Scott D. White 1997-6-12 5313 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
  IRVC740  Gnaphalium microcephalum var. microcephalum D. Ibbetson 1965-3-27 Orange Trabuco Canyon. Santa Ana Mountains Comment
  POM12445  Gnaphalium palustre P. A. Munz 1922-9-2 6355 Orange Ponds in Laguna Canyon 46 Comment
  RSA666100  Gnaphalium palustre Fred M. Roberts, Michelle Lee 2001-6-4 5484 Orange Rancho Mission Viejo: Chiquita Ridge, 0.3km WNW Median Rancho Survey Marker. PCR Vernal Pool 4. (Canada Gobernadora. 226 Comment
  RSA703385  Gnaphalium stramineum R. E. Riefner Jr. 2004-5-6 04 -173 Orange Newport Beach, north side of Pacific Coast Hwy., west of Bayside Drive near Newport Dunes Beach Club. 10 Comment
  RSA698236  Godetia purpurea Kenneth Beard s.n. Orange East of Irvine Park. Comment
  IRVC4033  Grindelia camporum var. bracteosa A. S. Boughey 1968-7-16 422 Orange road to Signal Peak. San Joaquin Hills Comment
  POM4604  Grindelia camporum var. bracteosa D. L. Crawford 1916-5-5 s.n. Orange Laguna Beach Comment
  CAS-BOT-BC305211  Grindelia hirsutula LeRoy Abrams 1903-4-19 3273 Orange Capistrano Comment
  CAS-BOT-BC305212  Grindelia hirsutula David D. Keck 1932-9-30 1899 Orange Ca. 5 mi. S. of Santa Ana, at R.R. right-of-way on road to Newport Beach Comment
  UC1929665  Grindelia hirsutula Scott D. White, Michael Honer 2003-6-19 9575 Orange SOUTWESTERN SANTA ANA MTN. FOOTHILLS: Ranch Mission Viejo. Steep mountain slopes south of San Juan Ck and west of Tramps Cyn. Comment
  CDA6157  Guizotia abyssinica Robert L. Pope 1967-6-13 Orange 0 Comment
  SEINET2052347 Image available Gutierrezia californica B. Pitzer, D. Hawks 1986-10-21 346 Orange Lomas de Santiago, ca. 10.0 miles E. of Santa Ana, in hills N and E of South Coast Gun Club on Jeffrey Rd. in Hicks Canyon. 182 Comment
  UCR168327  Gutierrezia californica P. H. Raven 1961-10-15 16853 Orange Santa Ana Canyon Rd, just west of State Highway 55, at west end of Peralta Hills 137 Comment
  CAS-BOT-BC302138  Gutierrezia sarothrae John Thomas Howell 1927-7-22 2816 Orange In hills on north side of Santa Ana Canon [Canyon] 182 Comment
  RSA627787  Hainardia cylindrica Scott D. White 1998-6-26 6785 Orange South Coast: Univ. of Calif. Irvine Campus. Along mapped intermittent blueline stream just N of Bonita Cyn Dr. 61 Comment
  UCD85224  Hainardia cylindrica A. A. Beetle 1942-4-19 3092 Orange 20 miles S of Santa Ana, road to Laguna. Comment
  IRVC26430  Haplopappus canus Mark A. Elvin 2004-2-22 3154 Orange UCI Arboretum Southern Coastal 15 Comment
  UCR241069  Harpagonella palmeri Dick Newell, Don Millar, Gigi Logan 2013-3-19 321 Orange Peninsular Range; Santa Ana Mtns., Silverado-Mod. Trail, 1.27 miles north of Blackstar and Silverado Canyon Rd. 366 Comment
  RSA0066583  Harpagonella palmeri Fred M. Roberts, Tony Bomkamp 1997-3-13 4981 Orange Rancho Mission Viejo: Christianitos Canyon, 4km ESE Viejo Survey Mark. 155 Comment
  RSA0066584  Harpagonella palmeri Karlin G. Marsh, Gordon Marsh 1991-6-10 s.n. Orange Laguna Beach: Temple Hill in South Laguna, E slope above Aliso Canyon 1.5 km N Aliso Peak. 185 Comment
  RSA602118  Hedypnois cretica Scott D. White 1997-5-6 5045 Orange Santa Ana Mountains. Santiago Canyon area: Ridgetop road N and W of Bolero Lookout. 427 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
  CAS-BOT-BC402190  Helianthemum scoparium R. F. Thorne; E. W. Lathrop; W. Wisura 1977-4-27 49679 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. 457 Comment
  RSA16357  Helianthemum scoparium var. aldersonii P. C. Everett 1935-6-18 7175 Orange Santa Ana Mts., San Juan Canyon, near Ortega Highway on Road to Santiago Pk, 701 Comment
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Dec 14 2011
  IRVC772  Helianthus annuus D. DeVault 1965-3-28 Orange Corona del Mar, Bayside Dr. and Jamboree Rd. Newport Beach Comment
  UC537024  Helianthus annuus Lawrence M. Booth 1932-6-29 1230 Orange Newport Bay Comment
  UCR228887  Helianthus annuus Dick Newell, Peter Wetzel, Cassie Backer 2011-7-5 201 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Agua Chinon Wash 242 Comment
  CDA6535  Helianthus ciliaris T. C. Fuller 1962-6-7 8871 Orange Union Oil lease, Deodora Street, 1.2 east of Brea Boulevard, Brea. 0 Comment
  CDA6543  Helianthus ciliaris T. C. Fuller 1962-6-7 8874 Orange Veeh ranch, north of El Toro, ca. 11 miles southeast of Tustin. 0 Comment
  IRVC14734  Helianthus gracilentus A. S. Boughey 1968-7-9 401 Orange Santa Ana mtns: upper Santiago Canyon. Peninsular Ranges Comment
  RSA263727  Helianthus gracilentus E. W. Lathrop 1970-1-28 7125 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  RSA5288  Helianthus gracilentus C. B. Wolf 1932-12-19 4446 Orange Main divide of Santa Ana Mts. between Sierra Peak and Skyline Drive 762 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
  UCSB47624  Helianthus gracilentus Roberts, Fred 1980-5-3 Orange Santa Ana Mtns.: Main Divide Truck Trail, 1.0 km SE Blue Jay Campground; 2.8km WSW El Cariso Guard Station 1010 Comment
  POM369761  Heliotropium curassavicum var. oculatum F. R. Fosberg 1931-6-19 5154 Orange Carbon Canyon, Puente Hills. Comment
  CAS-BOT-BC305898  Helminthotheca echioides Ira L. Wiggins 1965-10-18 20278 Orange At NE corner of Chapman Ave. and Victor Dr., Fullerton Comment
  SEINET10802443  Helminthotheca echioides David B. Dunn Dunn 22400 Orange Collected around the condominium-Pacific Island Estates in Laguna Niguel area. 30 Comment
  RSA539398  Hemizonia australis D. E. Bramlet 1990-11-3 2064 Orange W side Upper Newport Back Bay, ca 50 m NW of the Delhi channel. Population ca 100 m SE of end of University Dr. 23 Comment
  IRVC14796  Hemizonia fasciculata A. S. Boughey 1968-7-16 424 Orange road to Signal Peak. San Joaquin Hills Comment
  POM360262  Hemizonia fasciculata F. R. Fosberg 1930-7-10 455 Orange Anaheim Landing. [Los Angeles Co. on label] Comment
  RSA734120  Hemizonia fasciculata A. C. Sanders 2008-4-29 35142 Orange Peninsular Range;Santa Ana Mtns.: Lomas de Santiago, western end of Loma Ridgeon road to sheriff's training facility, c. 1.5 mi. SW of Santiago Reservoir 335 Comment
  UCR192078  Hemizonia fasciculata A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35279 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir 300 Comment
  UCR193798  Hemizonia fasciculata A. C. Sanders, Fred M. Roberts 2008-7-3 35682 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor 415 Comment
  RSA542437  Hemizonia paniculata Fred M. Roberts 1988-7-29 4125 Orange Aliso Viejo: Upper Wood Canyon, 1.5 km N Moulton Peak. 165 Comment
  CAS-BOT-BC26068  Hemizonia parryi subsp. australis David D. Keck 1933-9-29 2537 Orange Seal Beach. Comment
  UCR157704  Hemizonia parryi subsp. australis Adrian Wolf 1998-5-27 326 Orange South Coast, Newport Slough, south of oil fields, between Huntington Beach, Costa Mesa and Newport Beach, just south of the channelized mouth of the Santa Ana River 2 Comment
  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
  UCR248971  Hemizonia parryi subsp. australis Jeremiah George, Audrey J. George 2013-11-21 s.n. Orange Los Alamitos, adjacent to Los Alamitos Racetrack, north end of Katella Ave. at junction with Enterprise Dr. 9 Comment
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May 15 2019
  RSA0001299  Hemizonia parryi subsp. australis D. D. Keck 1933-9-29 2537 Orange Seal beach. Comment
  SD114979  Hesperocyparis forbesii Earl W. Lathrop 1976-11-17 7406 Orange 4 miles west of Corona in Gypsum Canyon north slope of Sierra Peak 609 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-BC143753  Heteromeles arbutifolia C. B. Wolf 1932-3-6 1840 Orange Trabuco Canyon 1/2 mi. above Trabuco Oaks, west slope of Santa Ana Mts. 457 Comment
  CAS-BOT-BC167001  Heteromeles arbutifolia T. B. Salvato 2010-10-27 5138 Orange South Coast: Dana Point Headlands, Hilltop Park, north of Scenic Dr. and west of Green Lantern St., overlooking Dana Point Harbor 84 Comment
  RSA0072389  Heteromeles arbutifolia K. M. Meyer, A. Townesmith, T. Scott 2007-3-10 3 Orange Cleveland National Forest, 0.5 mi. N Main Divide Rd./NF3S04, off Hwy. 74. Elsinore Mtns., ridge top. 917 Comment
  SBBG27204  Heteromeles arbutifolia C. B. Wolf 1932-12-19 4430 -a Orange 0.5 mi from Skyline Drive on fire break rd to Sierra Peak 762 Comment
  UCR100450  Heteromeles arbutifolia B. G. Pitzer 1996-4-30 2781 Orange South Coast, Upper Newport Bay, Calif. Dept. Fish & Game Ecological Reserve, off (W of) Jamboree Road 6 Comment
  UCR223436  Heteromeles arbutifolia Dick Newell, Don Millar 2011-2-8 056 Orange Peninsular Range; Santa Ana Mtns., Black Star Coal Mine above Fremont Canyon, along Coal Rd. 475 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
  UCR193773  Heterotheca grandiflora A. C. Sanders, Fred M. Roberts 2008-7-3 35697 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along Windy Ridge Rd. at hairpin turn/road junction below huge sandstone boulder (visible on Google Earth), 1.2 mi. SE of Walnut Canyon Reservoir 285 Comment
  RSA0075818  Heterotheca grandiflora F. W. Peirson 1920-1-9 2350 Orange Sand near the point at Balboa Beach. Comment
  UCSB52910  Heterotheca sessiliflora subsp. echioides Roberts, Fred; Camp, H. 1984-9-5 Orange Wagon Wheel Regional Park; 1.4 km. NW Bench Mark 422; 2.9 km. NE Median Survey Mark 175 Comment
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Dec 7 2018
  RSA751403  Hieracium argutum R. E. Riefner Jr. 2008-6-3 08 -136 Orange Santa Ana Mts., Irvine Ranch Reserve, Fremont Canyon Conservation Easement, E fork Fremont Canyon, Black Star SCE Rd. 641 Comment
  RSA732170  Hirschfeldia incana A. C. Sanders, Fred M. Roberts 2008-3-25 34540 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  RSA483123  Hirschfeldia incana Josephine Derigo 1941-7-25 s.n. Orange Anaheim. Comment
  CAS-BOT-BC207961  Hoffmannseggia glauca Goodwin 1933-7-6 s.n. Orange Unspecified Comment
  RSA708734  Hoita macrostachya Fred M. Roberts, Robert L. Allen, Chris Barnhill 2004-8-21 6119 Orange Caspers Wilderness Park, Hot Springs Creek in San Juan Cyn., c.a. 0.36km SSW San Juan Ranger Station, at SR 74 crossing. 197 Comment
  UCSB48008  Hoita macrostachya Roberts, Jr., Fred 1980-7-11 Orange Santa Ana Mtns.; Viejo Canyon, 3.0 km. ENE San Juan Guard Station; 0.7 km. N Hwy.74 355 Comment
  SBBG128672  Hoita macrostachya R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49564 Orange San Juan Cyn at Lower Picnic Camp, just below Ortega Hwy (74); Santa Ana Mtns Comment
  POM2592  Holodiscus discolor Philip A. Munz 1918-5-4 2218 Orange Laguna Beach. Comment
  POM357588  Holodiscus discolor W. Pequegnat 1940-6-19 s.n. Orange North face of Los Pinos Peak 1159 Comment
  CAS-BOT-BC150006  Holodiscus discolor var. discolor P. C. Everett 1935-6-18 7221 Orange Santa Ana Mts., Summit of Santiago Pk. 1731 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
  RSA642527  Hordeum intercedens D. E. Bramlet 1998-5-25 2627 Orange 120m north of the Newport Beach Library and 61m west of McArthur Blvd. 914m south of San Miguel Drive., Laguna Beach 7.5 USGS Quadrangle. UTM 11S 04 19 210m E X 37 18 860m N. Eleation 49 m. 15 Comment
  RSA655235  Hordeum intercedens D. E. Bramlet 1998-5-21 2626 Orange On slope adjacent to a tributary of Segunda Deshecha Canada, approximately 610m north of the existing access road (Telaga Valley Dr.) and 2.9 km north of Avenida Pico;, The site is approximately 1.93 km west of Cristianitos Canyon & 640m west of Wilson Camp Road. UTM 11S 04 45 670mE X 37 04 912mN 201 Comment
  RSA678738  Hordeum intercedens Fred M. Roberts, Carol A. Roberts, Robert Allen 2003-5-11 5857 Orange Dana Point Headlands: hilltop, 0.6km SSW Richard Henry Dana School south of Pacific Coast Highway and north of Scenic Drive., (UTM: 11S - 04 33 104mE, 37 02 642mN) 73 Comment
  UCR150381  Hordeum intercedens D. E. Bramlet 1998-5-25 2627 Orange Coastal Plains & Basins/Los Angeles Basin region, 120 m N of the Newport Beach Library and 61 m west of McArthur Blvd., 914 m south of San Miguel Drive 49 Comment
  RSA184143  Hordeum murinum subsp. leporinum I. L. Wiggins 1966-2-19 20453 Orange Hillside on W side of road, Carbon Canyon about 200m. Sw of Orange County Survey bench mark RCE 7872 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
  UCR247909  Horkelia cuneata subsp. cuneata Fred M. Roberts 2013-6-7 7781 Orange Peninsular Ranges, SANTA ANA MTNS.: Tributary to Upper San Juan Canyon near Chiquito Basin Trail, 1.1 km NNW Upper San Juan Campground. 518 Comment
  UCR37805  Horkelia cuneata subsp. cuneata Steve Boyd 1981-5-13 s.n. Orange South Coast, Pelican Hill, Irvine Ranch Property, San Joaquin Hills south of Corona del Mar 218 Comment
  POM224742  Horkelia cuneata subsp. puberula Philip A. Munz 1936-4-20 14606 Orange Laguna Beach, Mt. Olympus 152 Comment
  RSA542357  Horkelia cuneata subsp. puberula Fred M. Roberts 1988-4-26 3945 Orange San Joaquin Hills, Pelican Hill, 0.4 km SW summit. 183 Comment
  UCR203977  Horkelia cuneata subsp. puberula D. E. Bramlet 2008-4-28 4250 Orange East fork of Upper Weir Canyon on the south side of the existing access road, 1.6 km east of the main canyon and 183 m west of the upper boundary of Gypsum Canyon 406 Comment
  POM21176  Hymenolobus procumbens Helen D. Geis 1902-3-31 s.n. Orange Salt marsh Bolsachica. Comment
  RSA0106894  Hypericum canariense R. E. Riefner Jr. 2010-6-9 10 -56 Orange City of San Juan Capistrano, La Novia Ave. at Valle Rd. 45 Comment
  RSA450874  Hypericum canariense Fred M. Roberts 1984-4-29 1361 Orange Dana point Headlands: 0.5km NW Dana Point Harbor; 0.4km S Richard Henry Dana School 75 Comment
  RSA769302  Hypericum canariense R. E. Riefner Jr. 2010-6-9 10 -52 Orange City of San Juan Capistrano, along McKraken View Trail at San Juan Creek Rd., E of I-5 Freeway. 51 Comment
  RSA16349  Hypericum formosum var. scouleri P. C. Everett 1935-6-18 7184 Orange Santa Ana Mts., Main Divide Motorway to Santiago Pk., 1 mi. from Ortega Highway. 732 Comment
  IRVC813  Hypochaeris glabra L. McCabe 1965-4-6 Orange Corona del Mar. Newport Beach Comment
  SD113017  Hypochaeris glabra Darley F. Howe 1979-4-29 5085 Orange Newport Area. Comment
  UCR191464  Hypochaeris glabra A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34650 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 330 Comment
  UCR238204  Hypochaeris glabra Mark A. Elvin 2003-3-30 2385 Orange South Coast, north side of UC Irvine Preserve, between core of UCI campus (E Peltason Dr.) and Hwy 73 69 Comment
  IRVC996  Ipomoea mutabilis McGuire 1965-5-10 Orange Corona del Mar. Newport Beach Comment
  RSA603299  Isocoma menziesii R. E. Riefner 1997-7-12 97 -234 Orange San Clemente State Beach Comment
  UCR151113  Isocoma menziesii Scott D. White 1998-10-19 7190 Orange Santa Ana Mtns foothills, Yorba Linda, c. 0.5 mi south of Telegraph Canyon between Ohio St. and Fairmont 305 Comment
  UC1543132  Isocoma menziesii var. sedoides Donald G. Nelson 1935-6-27 332 Orange beaches s Corona del Mar (s of mouth of Newport Bay, on bluffs facing ocean) Comment
  CHSC100702  Isocoma menziesii var. vernonioides R. E. Riefner Jr. 2004-9-18 04 -425 Orange City of Yorba Linda; Santa Ana River, Horseshoe Bend, near La Palma Rd. and Via Del Rio Rd. UTM 11S 0431519E 3749312N. NAD 83. 105 Comment
  RSA5239  Isocoma menziesii var. vernonioides C. B. Wolf 1932-9-13 4027 Orange Bryant Ranch: Triangle of waste ground S of Bryant Ave., & 1/2 mi. west of Los Alamitos Blvd. (Triangle waste ground at NW corner of SW 1/4 sect. 30 T4S R11W) 8 Comment
  RSA573432  Isocoma menziesii var. vernonioides Steve Boyd, Tim Ross 1994-9-14 8343 Orange Southern Santa Ana Mtns, San Mateo Canyon Wilderness Area of the Cleveland National Forest, Lucas Canyon trailhead at Forest Service4 Road 7S06 on ridge dividing Aliso and Verdugo Canyons. 476 Comment
  RSA743518  Isocoma menziesii var. vernonioides Fred M. Roberts, Carol A. Roberts 2008-9-28 7114 Orange Dana Point: Dana Point Headlands, CNLM Preserve near NE Gate, 0.5 km W Marine Institute (Dana Point Harbor). 75 Comment
  SBBG62842  Isocoma menziesii var. vernonioides M. N. Ackley -Sep-1928 428 Orange Sunset Beach 8 Comment
  SD136909  Isocoma menziesii var. vernonioides Steve Boyd, Tim Ross 1994-9-14 8344 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness area, Lucas Canyon trail at stream crossing in Aliso Canyon 341 Comment
  RSA91276  Isocoma menziesii var. vernonioides F. W. Peirson 1919-11-8 1254 Orange South of Arch Beach, near Laguna Beach Comment
  RSA90  Isolepis cernua J. T. Howell 1927-7-18 434 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  RSA93  Isolepis cernua J. T. Howell 1927-7-6 277 Orange Santa Ana River bottom, Rancho Santa Ana 152 Comment
  IRVC307  Isomeris arborea D. Christy 1965-5-3 Orange [Newport] Back Bay. Newport Beach Comment
  IRVC9274  Isomeris arborea B. T. Gittins 1963-5-24 247248 Orange Newport Bay, beside road near salt ponds. Newport Beach Comment
  RSA696235  Isomeris arborea L. C. Hull 1934-3-7 s.n. Orange Laguna Hills Comment
  UC1090402  Isomeris arborea Milo S. Baker 1958-5-20 13307 Orange Newport Bay Comment
  UCR237932  Isomeris arborea Mark A. Elvin 2003-2-2 2258 Orange South Coast, San Joaquin Marsh, UCI campus SSE of intersection of Jamboree Blvd. and Campus Dr. 2 Comment
  UCR98234  Isomeris arborea B. G. Pitzer 1997-4-15 3133 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
  UC72699  Isomeris arborea E. A. Zumbro 1902-1 372 Orange Comment
  IRVC21634  Jaumea carnosa P. Fishman, H. R. Williams 1969-9-23 981 Orange Upper Newport Bay, below east bluff; above high tide line. Newport Beach Comment
  UC537018  Jaumea carnosa Lawrence M. Booth 1932-6-9 1183 Orange Newport Bay Comment
  RSA797478  Jepsonia parryi R. F. Thorne 1977-11-21 49991 Orange Santa Ana Mountains: tributary canyon to San Juan Canyon about 2 miles above San Juan Fire Station Comment
  CAS-BOT-BC426240  Jepsonia parryi F. W. Peirson 1919-11-8 1941 Orange Sea bluffs south of Arch Beach, near Laguna Beach Comment
  OBI30181  Juglans californica Czarnecki 1966-5-8 104 Orange La Vida springs in Carbon Cyn Comment
  SD7922  Juglans californica var. californica George R. Kleeberger 1878-12-1 Orange Santa Ana Valley 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
  UCR229284  Juglans hindsii R. E. Riefner Jr. 2011-8-25 11- 114 Orange Trabuco Canyon, Trabuco Canyon Road c. 1 mi northwest of O'Neill Regional Park 319 Comment
  SBBG128386  Juglans hindsii R. E. Riefner Jr. 2010-9-8 10 -121 Orange Laguna Cyn, ca. 0.15 mi S of El Toro Rd on E side of Laguna Cyn Rd; Laguna Beach 75 Comment
  RSA22739  Juglans regia Carl B. Wolf 1939-11-29 9545 Orange Orange County Picnic Grounds, Comment
  UCR158462  Juncus Adrian Wolf 1998-5-27 318 Orange South Coast, Newport Slough, south of oil fields, between Huntington Beach, Costa Mesa and Newport Beach, just south of the channelized mouth of the Santa Ana River 2 Comment
  UCR132981  Juncus acutus subsp. leopoldii Adrian Wolf 2000-7-3 447 Orange Santa Ana Mtns., 0.4 km SE of Black Star Canyon mouth 290 Comment
  RSA699734  Juncus acutus var. sphaerocarpus Keith E. Hoffmaster 1933-10-8 s.n. Orange Near Newport Bay. Comment
  UCR193035  Juncus balticus A. C. Sanders, Fred M. Roberts 2008-6-17 35492 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, West Loma Ridge Spur Road c. 0.8 mi SW of Irvine Lake and 0.9 mi. SE of Sheriff's Training Facility, just east of Hwy 241 280 Comment
  RSA552947  Juncus balticus Fred M. Roberts, R. E. Riefner 1989-5-2 4328 Orange Aliso-Wood Canyons Regional Park: Lower Wood Canyon, 3.5 kilometers SSE Multon Peak. 30 Comment
  RSA192266  Juncus bufonius E. W. Lathrop 1966-4-10 6157 Orange Silverado Canyon, Santa Ana Mountains, Cleveland Nat l. Forest, Trabuco District. 366 Comment
  UC842337  Juncus bufonius Alice Eastwood and John Thomas Howell 1937-4-24 3933 Orange Dana Point Comment
  UC729648  Juncus mexicanus E. R. Johnson 1932-5-5 Orange Santa Ana River bottom, near ranch house Santa Ana Canyon, Rancho Santa Ana 121 Comment
  UCR138438  Juncus rugulosus 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
  UCR193071  Juncus sphaerocarpus A. C. Sanders, Mitch Provance 2008-5-20 35421 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago area, Santiago Creek Canyon, c. 3/4 mile below Modjeska Canyon confluence 355 Comment
  RSA554638  Juncus textilis Scott D. White 1992-10-14 963 Orange Vicinity of city of Brea, immediately N of Carbon Canyon Road.& E of Placentia Ave., ca. 1 mile (airline) SSE of Tonner Canyon. 183 Comment
  RSA104  Juncus torreyi J. T. Howell 1927-7-14 399 Orange Santa Ana River, Rancho Santa Ana. 152 Comment
  RSA542335  Juncus xiphioides Fred M. Roberts, K. Keane 1988-5-25 3985 Orange Ranch Mission Viejo: Lower Canada Chiquita, 2.5 kilometers SSE Medium Rancho Survey Mark. 82 Comment
  POM21178  Juncus xiphioides Helen D. Gels 1902-11 s.n. Orange Santa Ana [River?] Comment
  SEINET11788654  Juncus xiphioides J. F. Bright, Wyman, C. 1933-1 8210 Orange valleys back of La Guna Beach Comment
  CAS-BOT-BC516185  Juniperus rigida var. conferta R. E. Riefner, Jr. 2011-7-1 11 -81 Orange City of Newport Beach, between Shorecliff Road and Cameo Shores Road 18 Comment
  UCR251747  Juniperus rigida var. conferta R. E. Riefner Jr. 2014-3-17 14- 70 Orange South Coast, City of Newport Beach, Corona Del Mar, c. 0.5 mi. south from intersection of Poppy Ave./Ocean Blvd. at Little Corona Beach 12 Comment
  CLARK-A1528-5706  Jussiaea repens var. peploides John C. Roos 1949-10-1 4685 Orange Doheney Beach 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
  CAS-BOT-BC235531  Keckiella antirrhinoides var. antirrhinoides Helen D. Geis 1904-5-1 735 Orange Silverado Canon [Canyon], Santa Ana Mountains Comment
  CAS-BOT-BC235532  Keckiella antirrhinoides var. antirrhinoides A. J. Perkins 1909-6-1 s.n. Orange Orange County Park Comment
  UC1618100  Keckiella antirrhinoides var. antirrhinoides Donald G. Nelson 1935-7-6 259 Orange San Juan Canyon Comment
  SD245484  Keckiella antirrhinoides var. antirrhinoides Robert Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49601 Orange Santa Ana Mountains: rocky ravine tributary to San Juan Canyon, along Ortega Highway (74) about 2 miles above San Juan Fire Station. Comment
  JEPS13626  Keckiella cordifolia Peter Kamb 1948-6-19 1100 Orange Holy Jim Canyon; Santa Ana Mts. 609 Comment
  NY790232  Keckiella cordifolia F. W. Pennell 1949-6-29 26806 Orange Ortega Highway, above San Juan Capistrano 365.8 Comment
  RSA34536  Keckiella cordifolia N. C. Cooper 1944-6-4 1340 Orange San Juan Canyon. 305 Comment
  RSA401705A  Keckiella cordifolia Albert J. Perkins 1923-6-24 s.n. Orange Silverado Canyon Comment
  RSA401706A  Keckiella cordifolia F. R. Fosberg 1931-6-21 S- 5133 Orange Silverado Canyon. Santa Anita Mts. Comment
  RSA736148  Keckiella cordifolia Rosemarie Zimmermann 1963-6-8 280 Orange Off State Hwy 18, on Oak Ridge Estates Rd. About 7 mi. E. of Hwy 101and El Toro. Near O'Neil Park. 610 Comment
  SEINET10499891  Keckiella cordifolia James S. Miller 1992-5-8 Miller 7452 Orange 2 mi E of the border of Cleveland National on California route 74. 310 Comment
  UCR36089  Keckiella cordifolia D. C. Michener 1980-7-14 s.n. Orange Santa Ana Mtns., Starr Ranch Audubon Sanctuary. Crow Creek, c. 1.3 miles north of confluence with Bell Canyon Comment
  RSA539358  Koeleria macrantha Fred M. Roberts, Carol A. Roberts 1988-6-9 4081 Orange Santa Ana Mountains: Modjeska Peak, 0.9km SW summit., 3730500mN, 449000mE 1542 Comment
  RSA682912  Koeleria macrantha Scott D. White, Amanda Duchardt 2003-5-1 9161 Orange Above west side of Trampas Canyon; (Canada Governadora)., 33?30'30N, 117?35'W 107 Comment
  RSA708524  Koeleria macrantha Fred M. Roberts, Robert L. Allen, Chris Barnhill, Nancy Hatfield 2005-5-30 6242 Orange Modjeska Peak summit, c.a. 60m south of highest point. 1675 Comment
  UCR242116  Koeleria macrantha D. E. Bramlet 1983-5-14 1373 Orange Peninsular Range, Santa Ana Mountains, Chiquito Basin 884 Comment
  RSA696161  Lactuca scariola Keith E. Hoffmaster 1927-10 s.n. Orange Santa Ana Comment
  RSA699580  Lactuca scariola Anonymous s.n. Orange Santa Ana Comment
  RSA894  Lactuca serriola J. T. Howell 1927-7-27 496 Orange Near ranch, Rancho Santa Ana 152 Comment
  POM361393  Lactuca serriola Freda Detmers 1931-7-15 s.n. Orange San Bernardino Mts, One ridge along Pine of the World Drive Comment
  CHSC26388  Laennecia coulteri James Henrickson 1970-8-22 5297 Orange 2 1/2 miles NNW of Huntington Beach in northern part of Bolsa Chica Salt Marsh. Near oilwell sites. 0 Comment
  SD247453  Lagunaria patersonia R. E. Riefner Jr. 2011-6-29 11 76 Orange City of Laguna Beach, general area of Shaw's Cove, vicinity of Cliff Drive and Fairview Street. 0 Comment
  RSA731984  Lamarckia aurea A. C. Sanders, Fred M. Roberts 2008-4-8 34769 Orange Peninsular Range: Lomas de Santiago, SSE os f Santiago Reservoir on Harding Truck Trail at Dripping Springs Loop, above Limestone Canyon. 475 Comment
  UC1132172  Lamarckia aurea A. Lewis 1934-4-1 377 Orange Coal Mine 304 Comment
  UCR191420  Lamarckia aurea A. C. Sanders, Fred M. Roberts 2008-4-8 34769 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
  UCSB47627  Lamarckia aurea Roberts, Fred 1980-4-3 Orange Hills, 1.5 km. ENE Dana Hills High School, Dana Point 85 Comment
  UCR186589  Lantana camara Robert DeRuff 1995-4-16 482 Orange Southern Coast, Newport Beach, Newport Back Bay, Northstar Beach 6 Comment
  IRVC20365  Lasthenia californica Fred M. Roberts, D. A. Roberts 1983-3-22 933 Orange San Juan Canyon, above Hwy 74, 2.7km ENE San Juan Guard Sta.; 3.6km SSW Sugar Loaf Pk., Santa Ana Mountains 407 Comment
  POM6017  Lasthenia californica L. R. Abrams 1903-4-18 3265 Orange Trabuco arroyo, near San Juan Capistrano. Comment
  IRVC16829  Lasthenia californica Karlin G. Marsh 1979-5-8 Orange Sand Canyon, Irvine Water District; dump area adjacent to wash. San Joaquin Hills Comment
  CAS-BOT-BC329173  Lasthenia glabrata subsp. coulteri Carl B. Wolf 1935-3-24 6295 Orange 1 mi N of Buena Park (valley to W of W. Coyote Hills) 53 Comment
  RSA3172  Lasthenia glabrata subsp. coulteri C. B. Wolf 1932-3-8 2691 Orange Sunset Beach, near S city limits 2 Comment
  SD27972  Lasthenia glabrata subsp. coulteri Carl B. Wolf 1932-3-8 2691 Orange Sunset Beach, near southern limits of City. Comment
  UC718548  Lasthenia glabrata subsp. coulteri Carl B. Wolf 1935-3-24 6295 Orange Comment
  POM48548  Lasthenia gracilis F. M. Reed 1925-5-14 4968 Orange Aliso Canon. Comment
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May 1 2011
  RSA0010307  Lasthenia gracilis Fred M. Roberts 2008-3-12 6732 Orange Dana Point: Dana Point Headlands CNLM Preserve, western side, c.a. 0.8 km W Marine Institute (Dana Point Harbor). 50 Comment
  RSA627758  Lasthenia gracilis Scott D. White 1998-3-24 6230 Orange University of California, Irvine Campus: Site of proposed Research Park. Southwest of main campus circle, ca. halfway between Beerkeley Avenue and new freeway (Bonita Canyon). 36 Comment
  SFV16517  Lathyrus hirsutus S. Mason, P. Rector 1993-4-16 s. n. Orange Santa Ana Mountains CA State Highway 74 at Lower San Juan Campground. Adjacent to campground sign on southeast side of road. 396 Comment
  UCR193068  Lathyrus vestitus A. C. Sanders, T. B. Salvato 2008-5-13 35334 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Canyon at mouth of Hangman Tree Canyon and lower Hangman Tree Cyn, c. 1/2 mile below Modjeska Canyon confluence 366 Comment
  UC1543143  Lathyrus vestitus var. alefeldii Donald G. Nelson 1935-4-6 216 Orange e of San Juan Capistrano (and just s of boundary of Cleveland National Forest, canyon branching northward from the summer ranger station on the main highway up San Juan Canyon); San Juan Canyon 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
  CAS-BOT-BC380859  Layia platyglossa P. A. Munz 1918-5-4 2172 Orange Laguna Comment
  RSA697123  Layia platyglossa Minor Warne 1934-4-21 s.n. Orange Santiago Canyon. Comment
  RSA699675  Layia platyglossa Keith E. Hoffmaster 1935-4-19 s.n. Orange Santiago can. near Silverado ca., Santa Ana Mountains. Comment
  RSA724037  Leersia oryzoides R. E. Riefner 2004-9-18 4 -425 Orange City of Yorba Linda; Santa Ana River, Horseshoe Bend, near La Palma Rd. and Via Del Rio Rd. 105 Comment
  UCR207798  Lemna O. F. Clarke 2004-11-14 s.n. Orange South Coast, Newport Back Bay 3 Comment
  UCR171395  Lemna minuta R. E. Riefner Jr. 2005-10-27 05 303 Orange City of Irvine; along Jeffrey Rd. N of Barranca Rd. near Irvine Valley College 47 Comment
  SD236317  Leonurus sibiricus O. F. Clarke, A. C. Sanders 2008-2-19 Orange South Coast: Fullerton; weeds at Calif. St. Univ. Fullerton Arboretum 79 Comment
  IRVC16187  Lepechinia cardiophylla Gordon A. Marsh, Karlin G. Marsh 1978-5-13 s.n. Orange Santa Ana Mtns: Claymine Canyon; road to Coal Canyon Peninsular Ranges 433 Comment
  RSA5329  Lepechinia cardiophylla B. D. Stark 1933-1-4 s.n. Orange Ridge above Claymine Canyon. No. end of Santa Ana Mts. 305 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
  RSA741724  Lepechinia cardiophylla R. E. Riefner Jr. 2008-6-12 8 -152 Orange Irvine Ranch Reserve, Fremont Canyon Conservation Easement, W Fremont Canyon, Windy Ridge S to W fork canyon habitat. 515 Comment
  UCD115328  Lepidium appelianum Ethelbert Johnson 1931-5-1 2197 Orange Santa Ana. Comment
  CAS-BOT-BC89524  Lepidium lasiocarpum L. R. Abrams 1917-6-23 6569 Orange Balboa. Comment
  UC494728  Lepidium lasiocarpum var. lasiocarpum Philip A. Munz 1932-3-29 12191 Orange Costa Mesa 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
  RSA325  Lepidium nitidum J. T. Howell 1928-2-7 813 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  UCR271004  Lepidium oblongum Mitch Provance, Travis Kegel 2016-4-8 416- 59 Orange Coastal Regions of Southern California, Newport Beach, W of the W end of 16th Street, and E of the Banning Oil Fields 32 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
  RSA0116223  Lepidium strictum Fred M. Roberts, Tony Bomkamp, R. E. Riefner 1996-4-19 4963 Orange Costa Mesa; Fairview Park, 0.1km W Canyon School 24 Comment
  RSA328  Lepidium virginicum var. pubescens J. T. Howell 1927-6-21 175 Orange Near ranch houses, Rancho Santa Ana. 152 Comment
  RSA329  Lepidium virginicum var. pubescens J. T. Howell 1927-6-20 172 Orange Botany Garden, Rancho Santa Ana 152 Comment
  UCR103217  Lepidium virginicum var. robinsonii Scott D. White 1997-2-19 4696 Orange Santa Ana Mtns, above Modjeska Canyon; proposed water tank site 488 Comment
  UCR193015  Lepidium virginicum var. robinsonii A. C. Sanders, Mitch Provance 2008-5-20 35402 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
  CLARK-A1528-4716  Leptochloa uninervia John C. Roos 1936-10-9 2509 Orange Olive Comment
  JEPS69843  Leptodactylon californicum Alice King March, 1908 Orange Santa Ana Comment
  SEINET6969968  Leptodactylon californicum W. P. Vestal, A. G. Vestal 1955-3-24 3461 Orange Trabuco Canyon, about 5 miles east of El Toro. Comment
  RSA699631  Leptosiphon floribundus Keith E. Hoffmaster 1934-4-8 s.n. Orange Gypsum can (n. Corona), Santa Ana Mts Comment
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Dec 11 2011
  RSA73675  Leptosiphon floribundus F. W. Peirson 1925-4-10 5741 Orange In Silverado Canyon. 610 Comment
  RSA588780  Leptosiphon floribundus Fred M. Roberts, Nicole Orlik 1990-4-11 4557 Orange Santa Ana Mountains: East Fork Upper Long Canyon, along Main Divide Truck Trail, 4.4 kilometers SE Los Pinos Peak. 750 Comment
  RSA72060  Leptosiphon floribundus Robert L. Dressler 1949-4-24 755 Orange Lower San Juan camping grounds. 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
  UCR221896  Leptosiphon liniflorus Dick Newell, Don Millar 2010-10-12 42 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Limestone Canyon Rd. 0.6 mile due east of Limestone Spur 290 Comment
  RSA731967  Leymus condensatus A. Sanders 2008-4-29 35137 Orange Lomas de Santiago, western end of Loma Ridge on road to shriff's training facility, c. 1.5mi SW of Santiago Reservoir. Comment
  RSA734905  Leymus condensatus A. C. Sanders 2008-5-28 35433 Orange Lomas de Santiago, Bee Flat at mouth of Limestone Canyon 264 Comment
  UC1543184  Leymus condensatus Donald G. Nelson 1935-6-27 329 Orange beaches s Corona del Mar (bluffs facing ocean, s of mouth of Newport Bay) Comment
  UCSB52930  Leymus triticoides Roberts, Fred 1983-5-19 Orange Laguna Beach; Laguna Canyon along Laguna Canyon Rd., 1.5 km N jct. El Toro and Laguna Canyon Rds.; 4.9km ESE Signal Peak 100 Comment
  RSA698086  Lilium humboldtii J. Vlahos 1934-03 s.n. Orange Black Star Canyon. Comment
  RSA377146  Lilium humboldtii subsp. ocellatum Albert J. Perkins 1923-6-24 s.n. Orange Silverado Canyon Comment
  CDA23090  Limonium binervosum Mark A. Elvin, D. G. Kelch 2006-12-9 5307 Orange Southern Coastal; Newport Backbay; Big Canyon, lower end. Comment
  POM201925  Limonium californicum var. mexicanum L. M. Booth 1932-6-29 1229 Orange Newport Bay. Comment
  RSA234500  Limonium californicum var. mexicanum James Henrickson 1970-7-24 5022 Orange 3 miles NW of Huntington Beach in slough near pickleweed flats NE of Inner Bolsa Bay in Bolsa Chica Salt Marsh. 0 Comment
  RSA723491  Limonium duriusculum R. E. Riefner 2005-10-5 5 -707 Orange City of Irvine, Bonita Creek, along La Salud St. near Milano Dr. 9 Comment
  CAS-BOT-BC226779  Linanthus californicus T. Cass 1975-4-11 1517 Orange Ladd Canyon Comment
  RSA652612  Linanthus californicus subsp. glandulosus Shlomo Gat 1959-5-12 49 Orange Hills in Orange county. Comment
  RSA787677  Linanthus floribundus subsp. floribundus R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49714 Orange Santa Ana Mountains: Bedford Truck Trail, ca. 0.8 km below junction with Main Divide Truck Trail Comment
  JEPS33699  Linanthus liniflorus John Thomas Howell 1927-6-8 2458 Orange Santa Ana Canyon 182 Comment
  SEINET7067522  Linanthus liniflorus A. G. Vestal 1947-6-12 s.n. Orange Canyon Road to Trabuco Canyon. Coordinate datum: NAD27. UTM Zone 11, 444428mE, 3723792mN. Comment
  RSA752710  Linaria canadensis Fred M. Roberts 2008-3-19 6787 Orange Dana Point: Dana Point Headlands, CNLM Preserve, 0.8km W Marine Institute, Dana Point Harbor. 60 Comment
  UC1419828  Lindernia dubia var. anagallidea G. D. Barbe 1973-8-9 1693 Orange Santa Ana (Tustin); Bordier's Nursery, 7231 Irivne Blvd Comment
  CDA41684  Lindernia dubia var. anagallidea G. D. Barbe 1973-8-9 1693 Orange Bordier s Nursery, 7231 Irvine Blvd., Santa Ana (Tustin). 0 Comment
  CAS-BOT-BC520399  Liquidambar styraciflua R. E. Riefner, Jr. 2014-11-28 14 -406 Orange City of Newport Beach, SW corner Jamboree Rd at MaArthur Blvd. 16 Comment
  RSA735257  Lithophragma affine Wilma Griset 1931-3-15 31 Orange Eagle Rock Comment
  RSA162696  Lithophragma affine subsp. mixtum J. D. Olmsted 1959-4-23 461 Orange Spring Trail at Beacon Pines Ranch; 9 miles SW of Corona. 762 Comment
  IRVC299  Lobelia dunnii var. serrata D. Christy 1965-5-5 Orange Corona del Mar, Begonia St. Newport Beach Comment
  IRVC1115  Lobularia maritima D. W. Bryant 1965-4-4 Orange Santa Ana and 22nd. Newport Beach Comment
  RSA733823  Lobularia maritima Keith E. Hoffmaster 1928-3-5 394 -442 Orange Santa Ana Mountains Comment
  RSA782058  Lobularia maritima Mark A. Elvin 2003-2-23 2313 Orange Irvine, San Joaquin Marsh along the berm of San Diego Creek 3 Comment
  UC1543187  Logfia filaginoides Donald G. Nelson 1935-4-6 233 Orange n of summer ranger station (near main highway of San Juan Canyon, e of San Juan Capistrano, s of Cleveland Nat. Forest); Santa Ana Mountains Comment
  UC729881  Lolium multiflorum Carl B. Wolf 1932-7-7 3858 Orange Bryant Ave., at pump house 1/2 e, Bryant Ranch, ne corner S.E.160 of Sect.30 Los Alamitos Blvd. Comment
  CAS-BOT-BC269107  Lolium perenne Carl B. Wolf 1932-6-13 3714 Orange Fullerton, Rose Drive 53 Comment
  CAS-BOT-BC271070  Lolium temulentum E. R. Johnson 1932-5-18 3638 Orange East edge of grain field bordering Rancho, Rancho Santa Ana Botanic Garden 198 Comment
  UC537108  Lolium temulentum Lawrence M. Booth 1932-5-19 1078 Orange Newport Bay 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
  RSA716657  Lonicera japonica Fred M. Roberts 2005-5-13 6185 Orange San Juan Capistrano; Ortega Ranch Business Center site, between Rancho Viejo Rd. and I-5 freeway adjacent to Horno Creek; 0.6km NE Mission San Juan Capistrano. 54 Comment
  RSA5268  Lonicera subspicata var. denudata C. B. Wolf 1932-12-19 4434 Orange Main divide of Santa Ana Mts. between Sierra Peak and Skyline Drive 762 Comment
  CAS-BOT-BC198563  Lotus E. W. Lathrop 1974-6-27 7420 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland Nat'l Forest 396 Comment
  RSA733840  Lotus hamatus A. C. Sanders 2008-4-29 35132 Orange Lomas de Santiago, western end of Loma Ridge on road to sheriffs training facility, c. 1.5 mi. SW of Santiago Reservoir. 335 Comment
  UCR192478  Lotus hamatus 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
  RSA2591  Lotus heermannii J. T. Howell 1928-7-10 1092 Orange Trabucco Canyon, Santa Ana Mts. 518 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
  UCR173936  Lotus heermannii A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33005 Orange Peninsular Range; Santa Ana Mtns., San Juan Canyon, from Lower San Juan Picnic Area to c. 1 mile downstream, parallel to Hwy 74 and near Riverside Co. line 396 Comment
  UCR186428  Lotus purshianus Robert DeRuff 1986-6-12 105 Orange Southern Coast, Newport Beach, Newport Back Bay, flats at 23rd St. 1 Comment
  RSA749302  Lotus salsuginosus Fred M. Roberts 1999-4-21 5181 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
  SEINET3562996 Image available Lotus salsuginosus Lawrence M. Booth 1932-5-19 1073 Orange Newport Bay Comment
  HSC1875  Lotus scoparius J. W. Johnson 1961-3-29 Orange Newport Beach, N slope overlooking upper Newport Bay Comment
  POM201833  Lotus scoparius L. M. Booth 1932-5-12 1025 Orange Newport Bay. Comment
  RSA648948  Lotus scoparius Mark Breidenbaugh, Caralisa Breidenbaugh 1992-5-25 66 Orange 1/2 mile south of Chino Hills State Park Boundary. 228 Comment
  RSA769616  Lotus scoparius E. W. Lathrop 1974-6-27 7415 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  SEINET2073834  Lotus scoparius R. Beal 1980-5-6 Orange Dana Point, above Pacific Ocean, top of sand hill. 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
  IRVC2264  Lotus scoparius subsp. scoparius B. Newman 1965-3-14 Orange Dana Point Comment
  UCR181165  Lotus scoparius var. scoparius R. E. Riefner Jr. 2006-7-2 06- 277 Orange South Coast, Costa Mesa, St. Route 73 at 55 Freeway interchange 20 Comment
  HSC2140  Lotus strigosus J. W. Johnson 1961-2-19 Orange Newport Beach, above upper Newport Bay Comment
  RSA3185  Lotus strigosus C. B. Wolf 1932-3-8 2678 Orange 1/2 mile N of Corona del Mar, Newport Bay. 8 Comment
  RSA732077  Lotus strigosus A. C. Sanders, Fred M. Roberts 2008-3-25 34565 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills. 259 Comment
  UC1544837  Lotus strigosus A. G. Vestal 1962-4-8 Orange 1.3 mi n Elsinore Comment
  UC867303  Lotus strigosus I. W. Clokey 1932-3-1 5328 Orange Laguna Beach Comment
  IRVC14756  Lotus strigosus var. hirtellus A. S. Boughey 1968-4-23 217 Orange Black Star Canyon, .5mi below Hidden Ranch; area burned this winter. Santa Ana Mountains Comment
  IRVC2221  Lotus strigosus var. strigosus A. S. Boughey 147 Orange [San Juan Canyon], Ortega Hwy, 1mi E San Juan Guard Sta. Santa Ana Mountains Comment
  RSA406319  Lotus strigosus var. strigosus M. B. Dunkle 1934-6-18 3971 Orange Upper San Juan Canyon. 610 Comment
  RSA737535  Lotus strigosus var. strigosus Fred M. Roberts 2008-3-12 6727 Orange Dana Point: Dana Point Headlands CNLM Preserve, western side, c.a. 0.8 km W Marine Institute (Dana Point Harbor). 50 Comment
  UC864299  Lotus wrangelianus I. M. Johnston 1918-5-4 1932 Orange Laguna Beach 6 Comment
  RSA799649  Ludwigia peploides Justin M. Wood 2010-9-29 2739 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
  RSA38193  Ludwigia peploides subsp. peploides P. A. Munz 1946-10-2 11557 Orange Bank of Santa Ana River, Rancho Santa Ana. 122 Comment
  RSA48859  Ludwigia peploides subsp. peploides J. C. Roos 1949-10-1 4685 Orange Doheney Beach. [Now Capistrano Beach] Comment
  UCR109740  Ludwigia peploides subsp. peploides T. W. Fisher, R. E. Orth 1964-7-1 s.n. Orange Peninsular Range; Santa Ana Mtns., San Juan Creek off the Ortega Hwy 500 Comment
  RSA162776  Ludwigia peploides subsp. peploides J. D. Olmsted 1959-9-22 985 Orange Along Santa Ana River N of Sycamore Park along Hwy. 8-9mile WSW of Corona, betw Santa Ana Mts and Puente Hills to Pacific Ocean 137 Comment
  IRVC29793  Ludwigia repens Mark A. Elvin, Dean Kelch 2006-12-9 5319 Orange Irvine; San Diego Creek, edge of San Joaquin Marsh, beside University Dr., between Campus Dr. and Hwy 73. Southern Coastal 3 Comment
  RSA0036357  Lupinus albifrons Andrew Wheeler 2009-5-12 s.n. Orange Long Canyon Road, between Blue Jay Campground and Convict Camp, 4 miles west of Lake Elsinore. Comment
  RSA732083  Lupinus bicolor A. C. Sanders, Fred M. Roberts 2008-3-25 34552 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills. 259 Comment
  UCR101530  Lupinus bicolor B. G. Pitzer 1997-4-15 3147 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
  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
  IRVC15184  Lupinus bicolor subsp. umbellatus Gordon A. Marsh, K. Conrey 1975-4-14 s.n. Orange Lomas de Santiago: Lomas Ridge, 1/4mi NNW Rattlesnake Canyon Reservoir Dam Southern Coastal Comment
  SBBG103895  Lupinus excubitus B. Pitzer, S. Hemstreet 1992-5-27 1964 Orange USFS Rd 3S04 to Blue Jay Group Cmpgrd, off St Hwy 74, ca. 2 air mi W of El Cariso Cmpgrd 762 Comment
  UCR234148  Lupinus excubitus Dick Newell, Judy Booth 2012-5-6 248 Orange Peninsular Range; Santa Ana Mtns., Maple Springs Road, 1.2 miles NE of Maple Springs gate, Cleveland National Forest 695 Comment
  IRVC17057  Lupinus excubitus var. hallii A. S. Boughey 1969-5-3 430 Orange Black Star Canyon on seaward side near crest. Santa Ana Mountains Comment
  IRVC2307  Lupinus excubitus var. hallii Pat Rolfe 1965-3-30 s.n. Orange Trabuco Canyon. Santa Ana Mountains Comment
  POM212330  Lupinus excubitus var. hallii Carl B. Wolf 1931-3-25 1936 Orange along Santa Fe R. R, 1 mile west of Esperanza , Santa Ana Canyon. 107 Comment
  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
  RSA598965  Lupinus hirsutissimus Scott D. White 1997-3-28 4837 Orange Santa Ana Mountains: above Modjeska Canyon, proposed water tank site. 427 Comment
  CDA27444  Lupinus hirsutissimus Robert L. Pope, R. G. Ahlefeld 1957-4-1 Orange Irvine ranch. 0 Comment
  SEINET10870668  Lupinus hirsutissimus Carl B. Wolf 1931-3-6 Wolf 1843 Orange Trabuci canyon, 1/2 mi. Above trabuco oaks, w slope of santa ana mts. 457 Comment
  LA205128  Lupinus latifolius W. E. Pequegnat; August 1937 34 Orange Santa Ana Mountains, Santiago Peak, Bear Springs Comment
  POM2431  Lupinus longifolius I. M. Johnston 1915-5-4 1897 Orange Laguna Beach. 30 Comment
  RSA749636  Lupinus longifolius D. E. Bramlet, Fred M. Roberts 2008-4-4 4173 Orange Loma Ridge, beside existing dirt access rd. 1.16km west of Hicks Haul Rd. and 1.6 km SW of Santiago Cyn Rd. 369 Comment
  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
  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
  UCSB50689  Lupinus sparsiflorus Phillips, B. 1980-5-3 Orange Highway 74, 0.3 miles east of the San Juan Guard Station 237 Comment
  IRVC16566  Lupinus sparsiflorus subsp. sparsiflorus Gordon A. Marsh, Karlin G. Marsh 1978-5-2 s.n. Orange Santa Ana Mountains; Silverado Truck Trail. Peninsular Ranges 884 Comment
  IRVC21274  Lupinus sparsiflorus subsp. sparsiflorus Fred M. Roberts, Karlin G. Marsh 1984-2-15 1204 Orange Casper's Regional Park: Rancho: Rancho Carrillo Rd., 1.0km NE Visitor Center; 3.0km SW Lucas Survey Mark, Santa Ana Mountains 150 Comment
  RSA414282  Lupinus sparsiflorus subsp. sparsiflorus M. B. Dunkle 1933-3-5 3090 Orange San Juan Canyon. Comment
  IRVC19804  Lupinus sparsiflorus subsp. sparsiflorus Karlin G. Marsh 1983-4-11 s.n. Orange Laguna Beach: Sycamore Hills, main ridge, head of El Toro-4 canyon. Southern Coastal Comment
  IRVC20366  Lupinus sparsiflorus subsp. sparsiflorus Fred M. Roberts 1983-3-16 932 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
  SEINET10490976  Lupinus sparsiflorus subsp. sparsiflorus LeRoy R. Abrams 1903-4-19 Abrams 3277 Orange Sandy soil along railroad, near san juan. Comment
  IRVC2355  Lupinus succulentus Janet Morgan 1965-3-3 s.n. Orange Laguna Canyon. Southern Coastal Comment
  UC1543229  Lupinus succulentus Donald G. Nelson 1934-12-1 137 Orange E. Chapman Ave. Fullerton (along Barranca); , along Barranca 76 Comment
  UCR223415  Lupinus succulentus Dick Newell, Don Millar 2011-2-8 051 Orange Peninsular Range; Santa Ana Mtns., lower Black Star Canyon, along access road ('State Spur') to Lakeview Rd. 260 Comment
  IRVC2344  Lupinus succulentus Bruce Reynolds 1965-4-3 HS 0419 Orange Corona Del Mar: Lincoln Junior High School Southern Coastal Comment
  RSA0058062  Lupinus succulentus Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49660 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. Comment
  IRVC2359  Lupinus truncatus C. Weir 1965-5-9 s.n. Orange Newport Beach, [Newport] Back Bay. Southern Coastal Comment
  RSA598921  Lupinus truncatus Scott D. White 1997-3-28 4851 Orange Santa Ana Mountains: above Modjeska Canyon, proposed water tank site. 427 Comment
  RSA737536  Lupinus truncatus Fred M. Roberts 2008-3-12 6726 Orange Dana Point: Dana Point Headlands CNLM Preserve, western side, c.a. 0.8 km W Marine Institute (Dana Point Harbor). 50 Comment
  UCR98251  Lupinus truncatus Scott D. White 1997-3-28 4851 Orange Santa Ana Mountains, Above Modjeska Canyon, proposed water tank site. 488 Comment
  RSA588779  Lupinus truncatus Fred M. Roberts, Nicole Orlik 1990-4-11 4558 Orange Santa Ana Mountains: East Fork Upper Long Canyon, along Main Divide Truck Trail, 4.4 kilometers SE Los Pinos Peak. 750 Comment
  SD255176  Lupinus truncatus R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49803 Orange Santa Ana Mountains: Trabuco Canyon. Comment
  SEINET12154803  Lupinus truncatus J. F. Bright, Wyman, C. 1938-1 8220 Orange Laguna Beach Comment
  CAS-BOT-BC233467  Lycium californicum Frank W. Peirson 1924-2-10 4526 Orange Balboa, near bridge Comment
  POM50622  Lycium californicum Helen D. Geis 1902-1 581 Orange Laguna Beach. Comment
  RSA0038506  Lycium californicum R. E. Riefner Jr. 2012-11-24 12 -558 Orange city of San Clemente, Presidio Ave. c. 0.2 mi south of Ave. Pico 34 Comment
  RSA80318  Lycium californicum F. W. Peirson 1919-11-8 1085 Orange South of Arch Beach, near Laguna Beach Comment
  UCSB52453  Lycium californicum Roberts, Fred 1983-3-10 Orange Dana Point Headlands; cliff west of and above Dana Point Harbor, south of old Cove Rd.; 0.8km S Richard Henry Dana School 60 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
  RSA788960  Lythrum hyssopifolia Robert F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49587 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74). 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
  RSA679219  Madia gracilis Fred M. Roberts 2003-6-17 5913 Orange Just NE of Falcon roup Camp, 2.1km ESWE Los Pinos Peak just west of main road. 1009 Comment
  CAS-BOT-BC206259  Malacothamnus fasciculatus R. F. Hoover 1968-6-10 11172 Orange Laguna Beach Comment
  POM124505  Malacothamnus fasciculatus L. R. Abrams 1918-5-26 s.n. Orange Near Laguna Beach Comment
  RSA3155  Malacothamnus fasciculatus Carl B. Wolf 1931-7-25 2294 Orange along road at north side of pear orchard, Rancho Santa Ana, Santa Ana Canyon 122 Comment
  RSA708288  Malacothamnus fasciculatus Scott D. White, Jennifer H. Jones 2005-3-31 10861 Orange South Coast: City of Laguna Beach. 549 Nyes Place. Proposed home site on ca. 0.5 acre. 91 Comment
  RSA95328  Malacothamnus fasciculatus F. W. Peirson 1923-3-25 3398 Orange Aliso Creek, Laguna Comment
  RSA549991  Malacothamnus fasciculatus var. laxiflorus Scott D. White 1992-9-23 851 -a Orange Vicinity of Olinda, near city of Brea, immediately N of Carbon Cyn Rd & E of Placentia Ave.; ca. 1 mi. (airline) SSE of Tonner Cyn. 183 Comment
  POM8303  Malacothrix glabrata P. A. Munz, R. D. Harwood 3384 Orange Temescal Canyon. 366 Comment
Read comments
Jul 6 2014
  UCR240074  Malacothrix saxatilis Dick Newell 2012-9-29 301 Orange South Coast, Newport Beach, Back Bay Drive at Big Canyon parking area 2 Comment
  IRVC22734  Malacothrix saxatilis var. tenuifolia Fred M. Roberts 1985-5-13 1787 Orange South Laguna; Mouth of Aliso Canyon, 0.6km NW Aliso Peak, 6 Comment
  UC582778  Malacothrix saxatilis var. tenuifolia P. A. Munz 1936-6-20 14177 Orange road at La Vida Springs Carbon Canyon Comment
  CAS-BOT-BC347889  Malacothrix saxatilis var. tenuifolia Philip A. Munz 1950-8-5 15478 Orange Rancho Santa Ana Botanic Garden, on Santa Ana River 198 Comment
  CDA8326  Malacothrix saxatilis var. tenuifolia T. C. Fuller 1962-6-7 8875 Orange Brea Canyon Road to Pomona, 1.2 miles north of Brea. 0 Comment
  UCSB16199  Malephora crocea Valentine, D. 1963-2-23 Orange Above Dana Point Pier, 2 mi. N of Doheny Beach State Park, 4 mi. N. of junction U.S. 101 and 101A at San Clemente 10 Comment
  CAS-BOT-BC167851  Malosma laurina John Thomas Howell 1927-7-16 2784 Orange Hills on north side of Santa Ana [Canon] Canyon 152 Comment
  CAS-BOT-BC167852  Malosma laurina John Thomas Howell 1927-7-24 2826 Orange Sandy floor of Claymine [Canon] Canyon, n. Santa Ana Mts. 152 Comment
  RSA447  Malosma laurina J. T. Howell 1927-7-16 415 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  UC1130499  Malosma laurina A. Lewis May 1934 450 Orange 1/2 mi. w. Long Canyon; Cleveland Nat'l Forest, Elsinore Quad. 914 Comment
  SEINET10870270  Malosma laurina Charlene A. Bennett 1976-7-21 Bennett 435 Orange Cultivated plants collected in and around the condominium-Pacific Island Estates in Laguna Hills; some native shrubs, etc. 152 Comment
  UCD116410  Malva assurgentiflora F. C. Boutin 1967-4-23 1623 Orange Santa Clemente Island: at N end of island SW of airstrip runway ca. 25 mi. from coast. Comment
Read comments
Nov 27 2013
  UCR237818  Malva parviflora Mark A. Elvin 2003-2-2 2287 Orange South Coast, San Joaquin Marsh, UCI campus SSE of intersection of Jamboree Blvd. and Campus Dr. 2 Comment
  SEINET11972070  Marah fabacea J. F. Bright, Wyman, C. 1933-1 8097 Orange Santa Ana foothills Comment
  POM201753  Marah macrocarpa L. M. Booth 1932-5-12 s.n. Orange Newport Bay. Comment
  SD143935  Marah macrocarpa Scott D. White 1996-12-20 4633 Orange Santa Ana Mtns above Modjeska Canyon. Proposed water tank site. 424 Comment
  UCR221458  Marah macrocarpa Dick Newell, Don Millar 2010-11-30 48 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Agua Chinon Canyon 232 Comment
  UCD41240  Marah macrocarpa Richard D. Luedke 1976-4-21 9 Orange Southeast Orange County. 12 miles east of El Toro on road S 19, Trabuco Canyon. Foothills of Santa Ana Mountains. Comment
  HSC14233  Marrubium vulgare D. W. Snell 1964-3-3 30 Orange 1 mi. E of Brea on Deadora Rd. Comment
  RSA649074  Marrubium vulgare Karl Price 1988-4-29 21 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
  RSA650826  Marrubium vulgare Daniel Truong 1991-5-13 24 Orange Irvine Regional Park, left field adjacent to main entrance, within 1/4 mile radius of 'closed area' Comment
  CAS-BOT-BC67806  Marsilea vestita Arthur Haupt 1935-4-12 s.n. Orange Costa Mesa Comment
  UC211179  Marsilea vestita subsp. vestita I. M. Johnston 1928-4-4 1979 Orange lakes in Laguna Canyon; San Joaquin Hills Comment
  UC1543207  Matricaria discoidea Donald G. Nelson 1935-3-24 188 Orange s side Santa Ana Canyon (along highway to Riverside County, ne Orange County) Comment
  RSA357003  Matricaria matricarioides R. F. Thorne 1975-4-6 45566 Orange San Joaquin Marsh: Near Irvine and coast. Comment
  UCR48188  Matricaria matricarioides R. F. Thorne 1975-4-6 45566 Orange San Joaquin Marsh: near Irvine and coast Comment
  UC536900  Matricaria occidentalis Lawrence M. Booth 1932-5-12 1011 Orange Newport Bay Comment
  IRVC29879  Matthiola incana Mark A. Elvin, D. Kelch 2006-12-9 5308 Orange Newport Backbay; Big Canyon, lower end. Southern Coastal 3 Comment
  IRVC2382  Medicago polymorpha Tony Price 1965-4-18 s.n. Orange Coasta Mesa; Santa Isabel St. Southern Coastal Comment
  RSA737483  Medicago polymorpha Fred M. Roberts 2008-3-12 6733 Orange Dana Point: Dana Point Headlands CNLM Preserve, western side, c.a. 0.8 km W Marine Institute (Dana Point Harbor). 50 Comment
  UCD107890  Medicago polymorpha Ira L. Wiggins 1966-3-4 20492 Orange Shoulder of Peralta Ave. near junction of Newport Freeway and Riverside Highway. Comment
  UCSB48053  Medicago polymorpha Fritzke, Sue; Roberts, Fred 1982-4-3 Orange Dana Point; hills, 1.0 km. N Dana Hills High School; 1.9 km. W Marco Forster Junior High School 100 Comment
  RSA746481  Medicago rigidula R. E. Riefner Jr. 2008-5-22 08 -120 Orange Unincorporated land between the Cities of Lake Forest nd Rancho Santa Margarita, El Toro Rd., near Meadow Ridge Dr. 362 Comment
  JEPS65531  Medicago sativa Lawrence M. Booth 1932-5-19 1077 Orange Newport Bay Comment
  RSA746478  Medicago truncatula R. E. Riefner Jr. 2008-3-24 08 -64 Orange Rancho Santa Margarita, Tijeras Canyon, N ca. 0.5 mi from Meandering Trails Rd. on Antonio Pkwy. 221 Comment
  RSA725517  Melia azedarach Fred M. Roberts, Robert L. Allen 2007-9-28 6613 Orange Lomas de Santiago: above lower Santiago Cyn. wash along Santiago Cyn. Rd. just south of Irvine Mesa, 3.3 km N Bolero Lookout. 332 Comment
  POM202497  Melica imperfecta L. M. Booth 1932-5-12 1032 Orange Newport Bay. Comment
  RSA697761  Melica imperfecta Aileen Adams 1932-4-29 s.n. Orange Slope above dam. [Orange Co.?] Comment
  SBBG119063  Melica imperfecta D. E. Bramlet, F. Roberts 2003-3-13 3334 Orange Donna O'Neill Reserve, NE ridge of reserve, ca. 915 m W of Cristianitos Rd and 1.2 km N of the E-W access rd (San Clemente: T8S R7W S12, NE of the NE 195 Comment
  UCR100307  Melica imperfecta B. G. Pitzer 1997-4-15 3141 Orange San Joaquin Hills, Crystal Cove State Park, north of the N end of the City of Laguna Beach. Along Moro Canyon Trail, from beginning to a point c. 1.75 mi. up the canyon. 49 Comment
  UCR138332  Melica imperfecta R. E. Riefner Jr., Adrian Wolf 2000-6-1 20- 460 Orange Santa Ana Mountains, North Ranch Policy Plan Area, north of Irvine Lake [Santiago Reservoir] and west of Black Star Canyon, west of dirt access road, W slope of Fremont Canyon. 473 Comment
  POM50513  Melica imperfecta var. flexuosa Le Roy Abrams 1901-06 1689 Orange San Joaquin Hills Comment
  IRVC2403  Melilotus albus Janet Morgan 1965-3-22 s.n. Orange San Clemente; Elmore Ranch. Southern Coastal 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
  RSA798096  Melilotus albus Robert F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49585 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74) 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
  UCR237821  Melilotus albus Mark A. Elvin 2003-2-2 2291 Orange South Coast, San Joaquin Marsh, UCI campus SSE of intersection of Jamboree Blvd. and Campus Dr. 2 Comment
  IRVC20467  Melilotus indicus Fred M. Roberts 1983-5-13 1059 Orange Dana Point Headlands; N of Scenic Dr., 0.5km W Dana Point Harbor; 0.7km SSW Richard Henry Dana School. Southern Coastal 79 Comment
  IRVC2410  Melilotus indicus Debbie Frees 1965-3-13 s.n. Orange Silverado Canyon. Santa Ana Moutnains Comment
  IRVC2417  Melilotus indicus D. Van Gorden 1965-5-2 s.n. Orange Costa Mesa; 18th Street. Southern Coastal Comment
  IRVC2426  Melilotus indicus Janet Bryant 1965-3-14 Orange Costa Mesa; Redlands Dr. and Santa Isabel. Southern Coastal Comment
  IRVC27499  Melilotus indicus Mark A. Elvin 2004-5-2 3410 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7km (air) NNW UC Irvine campus center. Southern Coastal 3 Comment
  RSA678511  Melilotus indicus Valerie L. Soza, Kevin B. Clark, LeRoy Gross, Will Miller, Fred Roberts, Gary D. Wallace 2001-4-4 1128 Orange Seal Beach U. S. Naval Weapons Station, southwestern edge of Seal Beach National Wildlife Refuge. 3 Comment
  UCD108069  Melilotus indicus E. Frost 1996-5-11 14 Orange Newport Back Bay, 70 yards in along bike path. 7 Comment
  IRVC2428  Melilotus indicus Pat McClellan 1965-5-1 Orange Coast Highway. Southern Coastal Comment
  UCSB48206  Melilotus indicus Roberts, Fred 1981-5-2 Orange Mission Viejo; Camino Capistrano, 1.7 km. N Crown Valley Parkway 49 Comment
  JEPS42777  Mentzelia micrantha John Thomas Howell 1927-7-3 2642 Orange Santa Ana Mts., Claymine Canyon 304 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
  UCR220024  Mesembryanthemum crystallinum 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
  RSA278  Mesembryanthemum crystallinum J. T. Howell 1927-6-30 251 Orange Bryant Ranch near Long Beach. 15 Comment
  RSA5852  Mesembryanthemum crystallinum C. B. Wolf 1932-6-28 3791 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
  UCSB49276  Mesembryanthemum crystallinum Hibbard, Doug 1977-3-4 Orange Black Bay Rd., 0.5 mile from its junction with Jamboree Blvd. Newport Beach Comment
  CAS-BOT-BC435277  Mesembryanthemum nodiflorum LeRoy Abrams 1903-4-20 3280 Orange Near San Juan Comment
  UCR237912  Mesembryanthemum nodiflorum Mark A. Elvin 2003-2-2 2277 Orange South Coast, San Joaquin Marsh, UCI campus SSE of intersection of Jamboree Blvd. and Campus Dr. 2 Comment
  RSA402639  Mesembryanthemum nodiflorum L. M. Booth 1932-6-25 s.n. Orange Mouth of Santa Ana River. 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
  RSA580940  Microseris douglasii subsp. platycarpha D. E. Bramlet 1994-4-30 2375 Orange At the base of the San Joaquin Hills and E of the Quail Hill area. Open flatlands 152m NW of the end of San Canyon Ave. and some 396m S of the San Diego Freeway. 42 Comment
  RSA651497  Microseris douglasii subsp. platycarpha D. E. Bramlet 2000-4-21 2990 Orange Exposed terraces of Blind Cyn. and North of Irvine Park. The site is 1.5 km west of Blind Canyon and 76m north of Irvine Park. This locality is 122m southwest of the MWD access road. 69 Comment
  UC1952573  Microseris douglasii subsp. platycarpha D. Bramlet 1994-4-30 2375 Orange At the base of the San Joaquin Hills and east of the Quail hill area. Open flatlands 152 m NW of the end of San Canyon Ave. and some 396 m south of the San diego freeway. Comment
  UCR107842  Microseris douglasii subsp. platycarpha Scott D. White 1998-3-16 6210 Orange University of California, Irvine campus. Site of proposed Research Park. SW of main campus circle, c. halfway between Berkeley Ave. and new freeway (Bonita Canyon). 37 Comment
  UCR158095  Microseris douglasii subsp. platycarpha Adrian Wolf 1998-5-4 203 Orange South Coast, Coastal Hills, Aliso/Woods Canyon Regional Park, Aliso Canyon 0.75 km SW of Woods Canyon, 2.25 km NNW of Aliso Water Treatment Plant, north of access road 30 Comment
  RSA599649  Microseris douglasii subsp. platycarpha Fred M. Roberts 1995-4-21 4930 Orange Irvine: San Joaquin Hills, Quail Hill area near end of San Canyon Road, 2.5 km ENE French Hill. 52 Comment
  RSA685931  Microseris heterocarpa Fred M. Roberts, David E. Bramlet 2003-3-27 5614 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
  RSA749850  Microseris heterocarpa Scott D. White, Amanda Duchardt 2003-3-27 8850 Orange Santa Ana Mountain Foothills: Canyon bottom and west facing slopes above Canada Gobernadora. 91 Comment
  RSA732162  Microseris lindleyi A. C. Sanders, Fred M. Roberts 2008-4-22 35020 Orange Santa Ana Mtns.: Lomas de Santiago, Limestone Canyon, c. 2 miles SW of Silverado 1200 Comment
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Nov 27 2009
  UC943889  Mimulus H. E. McMinn, M. Van Rensselaer 1945-6-9 1910 CD Orange ca. 5 mi e Laguna Beach (on Laguna Canyon Highway) Comment
  SEINET10863345  Mimulus aurantiacus subsp. australis Melvin L. Conrad, David B. Dunn 1973-6-13 Conrad 7136 Orange In vicinity of laguna beach. Corolla orange. 152 Comment
  POM311167  Mimulus aurantiacus var. pubescens H. E. McMinn, M. Van Rensselaer 1945-6-9 1909 -H&I Orange North slope Laguna Canyon ca. 4 mi. east of Laguna Beach. Comment
  RSA5275  Mimulus aurantiacus var. pubescens B. D. Stark 1933-1-21 4521 Orange San Clemente. 15 Comment
  UCD122401  Mimulus aurantiacus var. pubescens R. S. Woglum 1932-4-16 s.n. Orange Trabuco Canyon. Comment
  UCSB52448  Mimulus aurantiacus var. pubescens Roberts, Fred; Allen, R. 1982-7-4 Orange Chino Hills; Carbon Canyon; Carbon Canyon Rd; 0.3km by road SW county line; 2.5km NNW Gilman Peak 260 Comment
  POM256713  Mimulus aurantiacus var. pubescens W. Pequegnat 1940-6-14 s.n. Orange Trabuca Pk. 1220 Comment
  OBI9518  Mimulus aurantiacus var. puniceus H. E. McMinn 1949-6-9 5617 Orange About 3 mi E of San Juan Capistrano on hwy 74 Comment
  RSA454329  Mimulus aurantiacus var. puniceus N. C. Cooper 1949-5-1 3946 Orange San Juan Canyon. 610 Comment
  RSA588893  Mimulus aurantiacus var. puniceus Fred M. Roberts, Carol A. Roberts 1990-5-31 4661 Orange Costa Mesa; Fairview Park, Just west of end of Canyon Drive, 0.1 km W Canyon School. 24 Comment
  UCR209662  Mimulus aurantiacus var. puniceus Fred M. Roberts 2008-5-16 6981 Orange South Coast, Dana Point Headlands, Center for Natural Lands Mgmt. Preserve, along north slopes above Dana Strand Beach, 0.8 km west-northwest of the Marine Institute, Dana Point Harbor 45 Comment
  RSA734599  Mimulus brevipes A. C. Sanders, Fred M. Roberts 2008-5-6 35230 Orange Lomas de Santiago, lower Hicks Canyon, just above tollway (Hwy 241) crossing on Irvine Haul Rd., near debris basin. 216 Comment
  RSA790706  Mimulus brevipes L. C. Hull 1934-4-8 15 Orange Laguna Hills. Comment
  SEINET7908929  Mimulus cardinalis G. A. Klue 1972-1 12 Orange Silverado Canyon 610 Comment
  UCSB50634  Mimulus clevelandii Roberts, Fred 1982-7-9 Orange Santa Ana Mts; Upper Hot Springs Canyon; 0.1km SW Falcon Group Camp; 2.0km SE Los Pinos Peak 1075 Comment
  JEPS10479  Mimulus guttatus Lawrence M. Booth 1932-6-7 1167 Orange Newport Bay Comment
  RSA769078  Mimulus guttatus L. C. Hull 1934-3-7 s.n. Orange Laguna Hills Comment
  RSA790705  Mimulus guttatus W. Blanchard 1932-5-1 s.n. Orange Santiago Canyon. PR8. Comment
  RSA0045513  Mimulus guttatus Keith E. Hoffmaster 1935-4-14 928 Orange Trabuco creek, 1/4 mi. above CCC camp at Trabuco Oaks, Santa Ana Mts. PR 8. Comment
  CDA41824  Mimulus puniceus Pope & Hill 1957-4-9 s.n. Orange Irvine Ranch. 0 Comment
  CSUSB1909  Mimulus puniceus Mike Simmons 1975-5-28 Orange Highway 5, 2 miles west of Laguna Canyon Road 60 Comment
  IRVC25444  Minuartia douglasii var. douglasii Fred M. Roberts 1987-5-9 3432 Orange San Juan Trail above Chiquito Basin, 2.3km SSE Los Pinos Peak, Santa Ana Mountains 952 Comment
  SEINET11941951  Mirabilis californica J. F. Bright, Wyman, C. 1933-1 8105 Orange In Santa Ana Foothills Comment
  UCR193818  Mirabilis laevis A. C. Sanders, Fred M. Roberts 2008-7-16 35870 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Creek wash at and above the confluence of Hangmans Tree Canyon 370 Comment
  CAS-BOT-BC434670  Mirabilis laevis var. crassifolia I. M. Johnston 1918-5-4 266 Orange Hills back of Laguna Beach 152 Comment
  RSA276  Mirabilis laevis var. crassifolia J. T. Howell 1927-6-21 176 Orange Near ranch houses, Rancho Santa Ana. 152 Comment
  UC1287146  Mirabilis laevis var. crassifolia C. L. Hitchcock 1966-3-15 24143 Orange Stearns Lease, 1.5 miles E of Brea Comment
  POM9829  Mirabilis laevis var. crassifolia P. A. Munz, R. D. Harwood 1920-4-24 3759 Orange Sierra [Freemont] Canyon, Santa Ana Mountains. 366 Comment
  RSA30448  Mirabilis linearis E. L. Paddock 1942-8-12 11295 Orange Stern Ranch, Yorba Linda, John Manassero Lease Comment
  RSA38698  Modiola caroliniana E. L. Paddock 1943-9-10 s.n. Orange 1.5 miles NE of Brea Comment
  POM1190  Monanthochloe littoralis D. L. Crawford 1928-07 s.n. Orange Abalon Pt. Comment
  UC537290  Monanthochloe littoralis Lawrence M. Booth 1932-5-12 1046 Orange Newport Bay Comment
  RSA0059066  Monanthochloe littoralis CNPS Accuracy Assessment Team 2014-7-8 9567 .1 Orange Upper Newport Bay Nature Reserve. Comment
  RSA0059067  Monanthochloe littoralis CNPS Accuracy Assessment Team 2014-7-9 9563 .2 Orange Upper Newport Bay Nature Reserve. Comment
  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
  SEINET9297241  Monardella hypoleuca Unknown 2008-7-16 35845 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago, Dripping Springs off Limestone Canyon, c. 7.5 mi ESE of Tustin. Spring falling from 30 ft. cliffs forming a shaded bowl, with large pool at foot; forest of Quercus agrifolia and Platanus racemosa, with Sambucus mexicana, Rubus ursinus, Solanum douglasii, Heteromeles arbutifolia, RIbes malvaceum, R. speciosum, Rosa californica, Keckiella cordifolia, etc. Locally common rhizomatous perennial on dry slop in open brush, c. 100 m below the spring, between access road and stream. Comment
  RSA401585A  Monardella lanceolata var. lanceolata Claire Kibbe 1936-07 s.n. Orange Santa Ana Canyon. 762 Comment
  UC2035996  Monardella macrantha subsp. hallii P. C. Everett 1935-6-19 7223 Orange Santa Ana Mts., Main Divide Motorway 1.5 mi below summit Santiago Peak, E slope 1310 Comment
  UCR238207  Monardella stoneana Mark A. Elvin 2002-7-13 s.n. Orange Southern Coast, Irvine; UCI Arboretum 15 Comment
  IRVC26422  Moraea bipartita Mark A. Elvin, J. Liou, J. Carpenter, J. Nguyen 2004-3-8 3157 Orange UCI Arboretum Southern Coastal 15 Comment
  RSA0010788  Morus alba Robt. Allen, Richard S. Newell, Roger E. Reinke 2006-6-30 s.n. Orange Holy Jim Canyon Trail. About 1.5 mile up trail from forest gate. 671 Comment
  RSA704079  Muhlenbergia microsperma D. E. Bramlet, Fred M. Roberts 2003-5-1 3431 a Orange Donna O'Neill Reserve. The site is located 61m west of Cristianitos Rd. and 396m north of the E-W Road. 121 Comment
  UCD86820  Muhlenbergia microsperma A. A. Beetle 1942-4-19 3100 Orange Rt. 101. 5 miles south of Laguna Beach. Comment
  UCSB48199  Muhlenbergia rigens Roberts, Fred 1981-6-26 Orange Viejo Cyn., 0.4 km N Calif. Rte. 74; 2.7 km ENE San Juan Guard Station; Santa Ana Mts. 311 Comment
  CAS-BOT-BC515557  Muilla maritima LeRoy Abrams 1903-4-18 3263 Orange Southern California, Capistrano Comment
  UCR48000  Myoporum laetum Jack Easton 1987-4-21 s.n. Orange Southern Coast, Kain property, San Clemente, mouth of Trafalgar Canyon, just behind the beach 30 Comment
  OBI1297  Myriopteris newberryi Ilk 1963-9-17 1095 Orange Laguna Canyon, Laguna Canyon, rock outcrops north of road, ca. 1/2 mile north of El Toro Rd. turnoff; 500 Comment
  UCR158037  Nama stenocarpa Adrian Wolf 1998-5-15 276 Orange South Coast, Lambert Reservoir, north of El Toro Marine Corps Air Station 134 Comment
  CAS-BOT-BC259821  Nassella cernua LeRoy Abrams 1903-4-18 3268 Orange Capistrano Comment
  CAS-BOT-BC259822  Nassella cernua LeRoy Abrams 1903-4-18 3269 Orange Trabuco Canon [Trabuco Canyon], Capistrano Comment
  RSA548875  Nassella lepida Fred M. Roberts 1988-4-10 3900 Orange Lomas De Santiago: Loma Ridge, Upper Limestone Canyon, c.a. 3.2 kilometer NNW Bolero Lookout. 347 Comment
  RSA70  Nassella lepida J. T. Howell 1927-6-9 65 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  UCD87646  Nassella pulchra R. M. L. 1942-4-16 10 Orange 8 miles east of Santa Ana. Comment
  IRVC29781  Nasturtium officinale Mark A. Elvin, Dean Kelch 2006-12-9 5293 Orange Newport Backbay; Big Canyon, lower end. Southern Coastal 3 Comment
  RSA330  Nasturtium officinale J. T. Howell 1927-7-15 404 Orange Santa Ana River, Rancho Santa Ana [Botanic Garden] 152 Comment
  SEINET5624584 Image available Nasturtium officinale J. Sauer, A. Lang; Et al. 1971-1 4948 Orange upper San Juan Canyon Comment
  RSA697463  Nasturtium officinale Effie Jessup s.n. Orange Irvine Hills. Comment
  RSA780676  Nemacaulis denudata var. denudata Elizabeth A. Kempton 2006-5-5 304 Orange Roadside Pacific Coast Highway, near entrance to Bolsa Chica State Beach Ecological Park, outside of ecological boundary. 0 Comment
  UCR248994  Nemacaulis denudata var. denudata Elizabeth A. Kempton 2006-5-5 304 Orange South Coast, Pacific Coast Hwy (Hwy 1), near entrance to Bolsa Chica State Beach, outside of ecological park boundary 0 Comment
  SEINET10906229  Nemacladus longiflorus King King s.n. Orange Near Santa Ana Comment
  UC2042000  Nephrolepis cordifolia R. E. Riefner Jr. 2011-8-25 11 -120 Orange City of Laguna Beach, Aliso Beach County Park, bluff ca. 0.15 mi SE of Aliso Way, NW ca 0.25 mi of West St. Comment
  SEINET10837341  Nerium oleander David B. Dunn 1971-8-13 Dunn 18107 Orange Cultivated plants at Costa Mesa, CA. Comment
  OBI28517  Nicotiana glauca R. L. Allen 1978-8-28 s.n. Orange Mission Viejo, near Saddleback Ranch Apts; Los Alisos Blvd Comment
  SEINET7073413  Nicotiana glauca A. G. Vestal 1963-4-24 s.n. Orange La Paz Canyon, Rancho Mission Viejo. Coordinate datum: NAD27. Comment
  UCD126655  Nicotiana glauca C. L. Hitchcock 1966-3-15 24144 Orange Stearns Lease, 1.5 miles east of Brea. Comment
  UCR191318  Nicotiana quadrivalvis A. C. Sanders, Fred M. Roberts 2008-4-8 34743 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, head of Hicks Canyon, S of Santiago Reservoir 351 Comment
  SEINET12856155  Nicotiana quadrivalvis P. C. Everett 1935-1 7259 Orange 0.8 mile E. of Atwood, S side of RR tracks 107 Comment
  RSA716093  Nolina cismontana Fred M. Roberts, Carol A. Roberts 2006-4-28 6323 Orange Mision Viejo: near Vista del Lago Dr., 0.9km NE jct. Vista del Lago and Los Alios Blvd., 1.7km NNW Lake Mission Viejo dam. 211 Comment
  RSA725582  Nolina cismontana Fred M. Roberts, Robert L. Allen, Trish Smith 2007-6-15 6532 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
  UC1719635  Nolina cismontana James C. Dice, T. Oberbauer 1986-5-3 650 Orange Santa Ana Mountains, 0.2 km W of Trabuco Canyon 365 Comment
  UC1728555  Nolina cismontana James C. Dice with T. Oberbauer 1986-5-3 650 Orange 0.2 km w Trabuco Canyon; Santa Ana Mtns 365 Comment
  UCR113027  Nolina cismontana R. E. Riefner Jr. 2000-3-19 20- 137 Orange Peninsular Range, Santa Ana Mountains, North Ranch Policy Plan Area, along dirt road running N and parallel to Black Star Cyn Road 396 Comment
  UCR230220  Nolina cismontana Dick Newell, Ed Hill 2011-3-29 100 Orange Peninsular Range; Santa Ana Mtns., 200 yards NE of old coal mine, under power lines, off Coal Rd. below intersection with Upper Blind Cyn. Rd. 482 Comment
  JEPS11321  Nuttallanthus texanus Alice King March, 1908 Orange Anaheim Plains Comment
  CAS-BOT-BC171490  Oenothera californica Carl B. Wolf 1931-3-25 1935 Orange Along the Santa Fe R.R., 1 mile west of Atwood 91 Comment
  POM3074  Oenothera californica P. A. Munz 4117 Orange Anaheim. Comment
  POM225243  Oenothera elata subsp. hirsutissima P. A. Munz 1936-6-30 14176 Orange About 6 miles south of Garden Grove. Comment
  CDA5201  Oenothera speciosa Bill Amling 1957-7-23 Orange 0 Comment
  UC1005021  Oenothera xenogaura E. Johnson 1940-8-15 Orange 1.5 mi n of Placentia (Klokke Estate); Klokke Estate Comment
  RSA0013580  Oligomeris linifolia D. E. Bramlet 2008-5-28 4284 Orange Bee Cyn., Bowerman landfill site, 468m S Bee Cyn access road and 434m W of the active landfill. Comment
  CAS-BOT-BC229010  Oncosiphon piluliferum R. E. Riefner, Jr. 2011-5-20 11 -57 Orange Newport Beach, Coastal Peak Park, East Coastal Peak Rd. at Ridge Park Rd. 305 Comment
  UCR204271  Oncosiphon piluliferum Scott D. White, Jeff Lincer 2003-7-7 9616 Orange Coastal Plains & Basins; South Coastal Plain region, Former El Toro Marine Corps Air Station, East of 'El Toro Marine School' and Irvine Blvd.; site of former dump 140 Comment
  RSA288745  Opuntia M. G. McLeod, D. L. Walkington, D. J. Pinkava, G. Smith 1970-10-7 302 Orange Silverado Canyon, Santa Ana Mountains. Comment
  POM279574A  Opuntia X occidentalis Lyman Benson 1950-4-29 14339 Orange South end of San Clemente. Hill 1/2 mile from ocean. 152 Comment
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Oct 21 2009
  POM317734  Opuntia X occidentalis David Walkington 1963-5-17 167 Orange Above intersection of Dana Cove Park rd. and Green Lantern Dr., continuous slope with Dana Cove Park Rd. Dana Point. 61 Comment
  OBI37758  Opuntia X vaseyi D. J. Pinkava & M. G. McLeod, M. G. McLeod 1970-11-8 312 Orange 1/2 mi E of Warner Airport 914 Comment
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Nov 18 2013
  SD212539  Opuntia dejecta R. E. Riefner Jr. 2006-7-23 06 312 Orange City of Newport Beach, Upper Newport Bay, North shore of Newport Bay, West circa 0.25 miles from intersection of Bayview Way and Bayview Place 10 Comment
  POM285259B  Opuntia littoralis Lyman Benson 1955-10-17 285259 Orange Moulton Ranch just west of the summit east of Laguna Beach. 152 Comment
  POM317066  Opuntia oricola David Walkington 1962-11-18 62 Orange West side of N Euclid Ave. north of Sunny Hills West Home, Fullerton. 76 Comment
  IRVC14193  Opuntia prolifera J. W. Johnson 1976-8-11 Orange Irvine; UCI, 300ft. south of Medical Center; on heavy clay soil in grazing climax of mediterranean grasses. Destroyed by construction. Southern Coastal Comment
  SEINET3208448 Image available Opuntia prolifera Marc A. Baker, Bruce D. Parfitt 1987-4-12 7519 Orange Newport Beach, just W of bridge to Balboa Penninsula. Comment
  RSA800023  Orcuttia californica Justin M. Wood 2011-6-28 4300 Orange South Coast: City of Costa Mesa. Fairview Park, just WNW of Marison Special Education Center. Just W of parking area. 25 Comment
  CAS-BOT-BC355767  Osmadenia tenella D. E. Bramlet 2008-4-15 4178 Orange Foothills of the Santa Ana Mtns.: Hicks Cyn., 301m E Haul Rd, & 1.4km N of the Bee Cyn Access Rd. 206 Comment
  CAS-BOT-BC355779  Osmadenia tenella Herbert L. Mason 1925-4-25 2903 Orange 5 miles south of Laguna Comment
  UC912573  Osmadenia tenella Herbert L. Mason 1926-4-25 2903 Orange 5 mi n of Laguna Comment
  CAS-BOT-BC355780  Osmadenia tenella Palmer Stockwell 1935-5-12 1219 Orange Ca. 7 mi. E. of Mission San Juan, on Elsinore Rd. Comment
  RSA221029  Osmorhiza brachypoda E. W. Lathrop 1966-3-23 6108 Orange 4 miles northeast of Lake Irvine, Black Star Canyon, Cleveland National Forest, Trabuco District. Comment
  RSA0022432  Osmorhiza brachypoda R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49790 Orange Santa Ana Mountains: Trabuco Canyon Comment
  CDA25867  Osteospermum ecklonis Mark A. Elvin, D. G. Kelch, B. S. Herhus, Patricia Iluore 2006-12-9 5326 Orange Southern Coastal; Newport Backbay; along Bayside Drive ca. 100 miles west of Eastbluff Drive. Comment
  SEINET10801634  Osteospermum ecklonis Charlene A. Bennett, David B. Dunn; Chester T. Dziekanowski 1976-7-21 Bennett 433 Orange Cultivated plants collected in and around the condominium-Pacific Island Estates in Laguna Hills; some native shrubs, etc. 152 Comment
  POM353432  Oxalis albicans subsp. californica Carl B. Wolf 1931-3-6 1858 Orange Trabuco Canyon, 1.5 mile below Trabuco Camp Grounds 549 Comment
  RSA518448  Oxalis albicans subsp. californica C. W. Tilforth, Dorothy Tilforth 1977-3-6 1258 Orange Small canyon west of Gypsum Canyon, south side of Santa Ana River, Santa Ana Canyon 152 Comment
  UCR230239  Oxalis albicans subsp. pilosa Dick Newell, Don Millar 2011-3-15 086 Orange Peninsular Range; Santa Ana Mtns., MWD Road, east of Outdoor Education Center, 1.8 miles NW (312 deg. ) of Irvine Lake dam 239 Comment
  RSA731798  Oxalis corniculata Fred M. Roberts, Sandy Leatherman 2007-11-9 6639 Orange Santa Ana Mtns.: San Juan Canyon, Lower San Juan Picnic Ground. 408 Comment
  RSA799952  Oxalis pes-caprae D. M. Ray 2011-1-19 1 Orange South Coast: Santa Ana River: along right of way road just west of Least Tern Island. 0 Comment
  SEINET3093692 Image available Oxalis pes-caprae J. Harry Lehr 1972-3-30 625 Orange Santa Ana Street. 30 Comment
  RSA17142  Paeonia californica Carl B. Wolf 1936-6-17 7949 Orange Santa Ana Mts., along Ortega Hwy, 6/10 mi below San Juan Hot Springs. 183 Comment
  RSA700031  Paeonia californica Minor Warne 1934-03 s.n. Orange Gypsum canyon Comment
  RSA698740  Paeonia californica Mary Oliver s.n. Orange Santa Ana canyon. Comment
  RSA715697  Panicum capillare Fred M. Roberts, Chris M. Barnhill 2005-9-27 6278 Orange San Juan Capistrano: San Juan Creek wash, east of La Novia Road bridge, 1.4km E Mission San Juan Capistrano, 27 Comment
  RSA92454  Panicum capillare F. W. Peirson 1924-10-19 5230 Orange Wintersberg Comment
  SEINET11261327  Panicum miliaceum A. C. Sanders, Fred M. Roberts 2008-7-16 35865 Orange Peninsular Range, Santa Ana Mountains, Lomas de Santiago, Santiago Creek wash at and above the confluence of Hangmans Tree Canyon (El Toro 7.5' Q).; 0 358 Comment
  RSA724122  Panicum virgatum R. E. Riefner 2006-9-19 6 -439 Orange City of Anaheim, N side of Santa Ana River channel, Santa Ana Canyon, W (downstream) ca. 1.25 mi from Green River Golf Course. 118 Comment
  RSA759264  Papaver californicum Robt. Allen, D. Taylor 2008-5-9 s.n. Orange Silverado Canyon, 1.6 road miles EENE above Maple Springs Forest Gate, between Lost Woman Canyon and Spruce Canyon. 766 Comment
  RSA799938  Parapholis incurva Justin M. Wood 2011-4-12 3668 Orange South Coast, Santa Ana River: marsh just upstream of Pacific Coast Highway. On isolated sand capped island. 0 Comment
  CAS-BOT-BC259631  Paspalum dilatatum Ira L. Wiggins 1965-10-2 20270 Orange At Hillcrest Park, Fullerton Comment
  CAS-BOT-BC412827  Paspalum distichum R. F. Thorne; E. W. Lathrop; W. Wisura 1977-7-8 49568 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74) Comment
  RSA765876  Paspalum distichum R. E. Riefner Jr. 2005-7-9 05 -544 Orange City of Mission Viejo, Oso Creek, ca. 0.5 mi N of Paseo De Colinas on Camino Capistrano. 86 Comment
  CAS-BOT-BC414244  Paspalum vaginatum R. E. Riefner, Jr. 2014-1-14 14 -23 Orange City of Dana Point, Salt Creek Beach, Salt Creek Lagoon and eroding channel bank; W of Pacific Coast Highway and W of Monarch Beach Golf Course 1 Comment
  OBI74742  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
  RSA0089484  Paspalum vaginatum D. E. Bramlet 2009-11-27 4429 Orange South Coast: San Diego Creek between Irvine and Newport Back Bay. 4 Comment
  RSA766061  Paspalum vaginatum R. E. Riefner Jr. 2008-7-29 08 -257 Orange City of Dana Point, near Ritz-Carlton Hotel, Salt Creek Beach area. 0 Comment
  UCD169410  Paspalum vaginatum R. E. Riefner Jr. 2012-10-21 12- 523 Orange City of Newport Beach, south of Poppy Street/Ocean Blvd, creek at base of stairs, Little Corona Beach. 7 Comment
  UCR204900  Paspalum vaginatum R. E. Riefner Jr. 2005-7-9 05- 545 Orange South Coast, city of Mission Viejo, Oso Creek, c. 1.4 mi north of Paseo de Colinas on Camino Capistrano 88 Comment
  RSA450851  Pectocarya linearis subsp. ferocula Gordon Marsh 1978-3-17 s.n. Orange U.C. Irvine Ecological Preserve. 85 Comment
  RSA0127410  Pectocarya linearis var. ferocula Fred M. Roberts 2016-3-17 8005 Orange San Joaquin Hills: City of Irvine, Bommer Canyon, east fork, 0.3 km ESE Cattle Camp near East Fork Trail. 152 Comment
  UCR159812  Pelargonium grossularioides Mark A. Elvin 2005-5-14 4314 Orange Southern Coastal, UCI Arboretum 15 Comment
  SD48447  Pellaea andromedifolia var. andromedifolia E. K. Balls, P. C. Everett 1957-11-25 22840 Orange Upper Trabuco Canyon, 2.2 miles northeast from entrance to Holy Jum Canyon 990 Comment
  UCR113460  Pellaea mucronata subsp. mucronata R. E. Riefner Jr. 2000-8-8 20- 719 Orange Peninsular Range, Santa Ana Mountains, North Ranch Policy Plan Area, NE property, E slope of upper Fremont Canyon, south of Donaldson Ranch and south of powerline/ National Forest boundary 454 Comment
  IRVC3150  Pellaea mucronata var. mucronata E. P. Cowper Orange Trabuco Canyon. Santa Ana Mountains Comment
  UC1543033  Pellaea mucronata var. mucronata Donald G. Nelson 1935-4-6 241 Orange e of San Juan Capistrano (and just s of boundary of Cleveland Nat'l Forest, canyon with stream branching n from summer ranger station on main hwy); San Juan Canyon Comment
  RSA221077  Penstemon spectabilis E. W. Lathrop 1966-5-1 6257 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland Nat'l Forest, Santa Ana Mountains. 396 Comment
  LA203849  Pentachaeta aurea LeRoy Abrams; 1903-4-17 3259 Orange near El Toro Comment
  POM156456  Pentachaeta aurea L. R. Abrams 1903-4-17 3259 Orange Near El Toro Comment
  POM351577  Pentachaeta aurea Anstruther Davidson 1893-05 s.n. Orange Santiago Canyon Comment
  RSA644973  Pentachaeta aurea R. E. Riefner 2000-4-15 20 -380 Orange NCCP North Ranch Policy Plan Area. Main Divide Raod; S. of Gypsum Canyon and S of Windy Ridge. 518 Comment
  SEINET3148376  Pentachaeta aurea L. Abrams 1903-4-17 3259 Orange Near El Toro Comment
  UC718583  Pentachaeta aurea P. C. Everett 1935-4-22 6463 Orange 1/4 mi w Horseshoe Bend; Santa Ana Canyon 121 Comment
  UCSB52875  Pentachaeta aurea Roberts, Fred; Allen, R. 1983-3-27 Orange Dana Point Headlands; north of Dana Strand Rd., 0.5 km. W Dana Point Harbor; 0.7 km. SSW Richard Henry Dana School 79 Comment
  RSA580937  Pentachaeta aurea subsp. allenii D. E. Bramlet 1994-4-1 2367 Orange San Joaquin Hills, Camarillo Canyon area, some 427m W of Laguna Canyon Rd. and 671m N of Camarillo canyon 140 Comment
  IRVC20439  Pentagramma triangularis subsp. triangularis Fred M. Roberts, K. G. Marsh 1983-5-26 1093 Orange Dana Point Headlands: 0.5km W Dana Point Harbor; 0.8km SSW Richard Henry Dana School Southern Coastal 82 Comment
  LA210786  Pentagramma triangularis subsp. viscosa Lawrence L. Kiefer; 1963-11-17 1099 Orange Laguna Canyon, Laguna Beach, near road to Irvine, just back of the city. 60 Comment
  POM201639  Perideridia gairdneri subsp. gairdneri L. M. Booth 1932-8-5 1354 Orange Lomita Land Co. Comment
  LA204537  Peritoma arborea A. H. Lange; 1951-4-26 sn Orange Balboa Comment
  SFV16195  Peritoma arborea R. K. Stachelek, B. Anderson, F. Schropshire 1995-3-1 39 Orange Newport Beach, Upper Newport Bay on Back Bay Drive about 0.5 miles north of Shellmaker Island. Mesic roadside at base of coastal bluff adjacent to semi-disturbed coastal sage scrub area. Comment
  CAS-BOT-BC418843  Persicaria hydropiperoides Carl B. Wolf 1932-6-13 3719 Orange Fullerton, Malvern & Nicholas Aves. 53 Comment
  UCR186686  Persicaria lapathifolia T. B. Salvato, Katie Kurtz, Mitch Provance 2006-10-15 1907 Orange South Coast, Irvine, San Diego Creek flood control channel, between Campus Drive and Michelson Drive 6 Comment
  POM4186  Petunia parviflora L. R. Abrams 1901-6-13 1775 Orange Laguna Comment
  CAS-BOT-BC294750  Phacelia R. C. Wenk; P. Hopkinson; M. Hammond; P. Brownsey 2008-3-24 716 Orange Chino Hills State Park. South Ridge Road west of San Juan Hill, going west from Equestrian Staging Area 441 Comment
  RSA0014990  Phacelia brachyloba Fred M. Roberts 2008-5-20 6990 Orange Lomas de Santiago: Santiago Creek wash north of Hanging Man s Tree Road near confluence of Pancho Cyn., 1.6 km NW Bolero Lookout. Irvine Ranch Conservancy. 349 Comment
  RSA16333  Phacelia brachyloba Percy C. Everett 1935-6-18 720 Orange Santa Ana Mts, Main Divide Motorway 1.4 miles N of Los Pinos Potrero 1098 Comment
  RSA539387  Phacelia brachyloba Fred M. Roberts, Carol A. Roberts 1988-6-2 4034 Orange Santa Ana Mtns: Silverado Canyon, Maple Springs Truck Trail, 4.3km above gate. 1.0 km WSW Bald Peak. 817 Comment
  RSA588659  Phacelia brachyloba Fred M. Roberts, Carol A. Roberts 1990-5-23 4648 Orange West Fork, Upper Long Canyon, near Main Divide Truck Trail, 4.5km SE Los Pinos Peak. 756 Comment
  OBI30179  Phacelia cicutaria var. hispida Nancy J. Mann 1976-5-23 s.n. Orange Charlton ranch, 1.2 mi N of Modjeska Cyn rd on Santiago Cyn rd, Santa Ana Mts Comment
  RSA595  Phacelia cicutaria var. hispida J. T. Howell 1927-6-5 35 Orange Rancho Santa Ana, near east boundary. 152 Comment
  UCR191020  Phacelia cicutaria var. hispida A. C. Sanders, Fred M. Roberts 2008-4-22 35021 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Limestone Canyon, c. 2 miles SW of Silverado 396 Comment
  RSA738989  Phacelia ciliata Norland 1929-3-16 s.n. Orange Huntington Beach Comment
  JEPS2402  Phacelia distans Alice King June 1908 Orange Santa Ana Comment
  RSA697781  Phacelia distans Minor Warne 1934-4-28 s.n. Orange Ladd Canyon-Santa Ana Mts. PR8. Comment
  UCR281548  Phacelia distans Mitch Provance, Jeremiah George 2017-3-20 317- 122 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
  RSA605  Phacelia distans J. T. Howell 1927-6-24 209 Orange Olinda 152 Comment
  RSA0041602  Phacelia douglasii Anstruther Davidson 1917-1 s.n. Orange Laguna. Comment
  RSA734592  Phacelia grandiflora A. C. Sanders, Fred M. Roberts 2008-5-6 35220 Orange Lomas de Santiago, lower Hicks Canyon, just above tollway (Hwy 241) crossing on Irvine Haul Rd., near debris basin. 216 Comment
  UCR191321  Phacelia hubbyi A. C. Sanders, Fred M. Roberts 2008-4-8 34745 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, head of Hicks Canyon, S of Santiago Reservoir 351 Comment
  RSA759104  Phacelia imbricata Robt. Allen, Genevieve K. Walden, Lisa W. Young 2008-6-26 s.n. Orange Modjeska Peak, WSW-facing slope, directly across from Santiago Peak. Within 1 meter of the W side of Main Divide Truck Trail. 1534 Comment
  RSA725475  Phacelia parryi Fred M. Roberts, Megan Lulow 2007-7-30 6543 Orange Fremont Canyon, 1.3 km NE Irvine Lake spillway, North Irvine Ranch Policy Area. 253 Comment
  CAS-BOT-BC6834  Phacelia ramosissima var. austrolitoralis John Thomas Howell 1927-7-17 2790 Orange 1 mile N of Laguna Beach 15 Comment
  SD152824  Phacelia ramosissima var. latifolia Steve Boyd, Tim Ross 1992-5-19 7445 Orange Southern Santa Ana Mts,San Mateo Canyon Wilderness Area. Western edge of the wilderness in Lucas Canyon from crossing of creek by Lucas Canyon Trail, downstream to confluence with Aliso Canyon. North side of conical knob at confluence with Aliso Canyon. 274 Comment
  RSA428279B  Phacelia suaveolens subsp. keckii Albert J. Perkins 1914-6-14 s.n. Orange Santiago Peak. Comment
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Jul 21 2018
  CDA22570  Phalaris aquatica J. B. Anderson 1966-5-15 642 Orange Upper Newport Bay: Along Irving Avenue at 23rd Street. 0 Comment
  IRVC8439  Phalaris aquatica J. B. Anderson 1966-5-15 642 Orange Upper Newport Bay: along Irvine Avenue at 23rd Street. Southern Coastal Comment
  SEINET4182708 Image available Phalaris minor A. A. Beetle 1942-4-19 3091 Orange 20 Miles South of Santa Ana, road to Laguna Comment
  UCR102004  Phalaris minor B. G. Pitzer 1997-3-25 3038 Orange San Joaquin Hills, Crystal Cove State Park, Pelican Point Area, on bluffs immediately above beach, along trail that winds around restoration area and down to beach. 30 Comment
  UCR170307  Phalaris minor J. B. Anderson 1966-4-18 597 Orange South Coast, MacArthur Blvd. near Red Hill Road [between Santa Ana and Irvine, NE of John Wayne Airport] 9 Comment
  RSA0011626  Phalaris minor Rankin s.n. Orange Costa Mesa. Comment
  IRVC19911  Phalaris paradoxa Karlin G. Marsh 1983-5-29 s.n. Orange Irvine Ranch on ridge between South and Bommer cyns. Southern Coastal Comment
  POM356937  Phalaris paradoxa Anstruther Davidson 1916-6-1 3156 Orange Brea Ranch Comment
  UCR195000  Phoenix canariensis A. C. Sanders, Fred M. Roberts 2008-8-7 36007 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon at powerline crossing, 1.0 mi. (air) SSE of Walnut Canyon Reservoir 226 Comment
  RSA770727  Phoenix dactylifera Robert DeRuff 2008-07 570 Orange Upper Newport Bay, between Mariner s Drive and North Star Beach 6 Comment
  POM3742  Pholistoma auritum D. L. Crawford 1916-07 s.n. Orange Laguna Beach region. Comment
  RSA296796  Pholistoma auritum Lyman Benson 1947-4-27 12339 Orange Carbon Canyon. Chino-Puente Hills; Pacific Slope Drainage Area. 244 Comment
  SD236440  Phoradendron macrophyllum A. C. Sanders, Fred M. Roberts 2008-6-17 35480 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago, Agustine staging area near Limestone Canyon Rd. gate at Santiago Cyn Rd. 259 Comment
  POM182012  Phyla lanceolata F. W. Peirson 1924-8-29 5094 Orange Road from Artesia to Hungtington Beach, along ditch Comment
  RSA759147  Phyla nodiflora Robert Allen 2007-4-28 s.n. Orange foothills, along Santiago Creek, N side of Irvine Regional Park 174 Comment
  RSA684065  Phyllospadix torreyi E. Yale Dawson 1958-1-5 18117 Orange E side of Crystal Cove. Station no 42. 140-150 ft from shore base point. Comment
  UC813911  Phyllospadix torreyi F. R. Fosberg July, 1928 S 1525 Orange Laguna Beach Comment
  RSA38696  Physalis cinerascens E. L. Paddock 1943-9-23 s.n. Orange Kraemer Ranch, east of Yorba Linda, Comment
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Apr 23 2011
  RSA731932  Physalis philadelphica Fred M. Roberts, Sandra Leatherman 2007-11-27 6678 Orange Yorba Linda: drainage channel on east side of Amberdale Dr. c.a. 0.3km S Fairmont Blvd. 118 Comment
  IRVC21696  Picris echioides Fred M. Roberts 1984-8-6 1367 Orange UC Irvine, along Adobe Circle Road, 0.9km ENE campus center; 2.3km W French Hill, Irvine 30 Comment
  UCR231189  Pinus attenuata A. C. Sanders, T. B. Salvato, Kent Beaman 2011-11-3 39943 Orange Peninsular Range; Santa Ana Mtns., near Pleasants Peak along the Main Divide Truck Trail 1143 Comment
  MACF021903  Pinus attenuata Dale Schneeberger 1977-5-18 48 Orange 2 miles south of Pleasants Peak, Santa Ana Mtns. 1097 Comment
  IRVC2815  Pinus coulteri A. S. Boughey 1965-3-16 58 Orange Santa Ana Mtns: Silverado Cyn. Peninsular Ranges 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
  RSA376207  Piperia cooperi E. W. Lathrop 1986-5-18 7856 Orange 200 meters south of the Cleveland National Forest, Trabuco district boundary, along road between the USFS Tenaja Guard station and Cottonwood Creek. Comment
  RSA599183  Piptatherum miliaceum Scott D. White 1997-3-28 4826 Orange Above Modjeska Canyon, proposed water tank site 425 Comment
  RSA725540  Piptatherum miliaceum Fred M. Roberts, Robert L. Allen 2007-9-28 6606 Orange Santa Ana Mtns.: Silverado Cyn., along Silverado Cyn. Rd. at eastern edge of town of Silverado. 347 Comment
  RSA798191  Piptatherum miliaceum R. F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49569 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74) 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
  SD212526  Plagiobothrys acanthocarpus R. E. Riefner 2006-4-12 06 116 Orange Irvine, north foot of San Joaquin Hills, vicinity of Quail Hill, SSW of 405 Freeway and Shady Canyon Road 46 Comment
  SD234854  Plagiobothrys collinus A. C. Sanders, Fred M. Roberts 2008-3-25 34542 Orange Peninsular Range: Santa Ana Mountains: Weir Canyon, 4 mile ENE of Villa Park at SE edge of Anaheim Hills (Black Star Canyon 7.5' Q) 259 Comment
  IRVC9331  Plagiobothrys collinus var. californicus C. Leavell 1966-3-16 59 Orange El Toro Rd. near Post Office; in open field. El Toro Comment
  POM155843  Plagiobothrys collinus var. californicus L. R. Abrams 1903-4-15 3315 a Orange Buena Park. Comment
  IRVC14769  Plagiobothrys collinus var. fulvescens D. Orr 1965-3-27 Orange Trabuco Rd. 3mi E El Toro Marine Base. El Toro 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
  POM4541  Plantago erecta P. A. Munz 1918-5-4 2212 Orange Laguna. Comment
  RSA759  Plantago erecta J. T. Howell 1928-3-17 868 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  UC1125628  Plantago erecta A. Lewis Mar 1934 368 Orange Black Star Canyon Corona Quad. 457 Comment
  RSA3165  Plantago erecta Carl B. Wolf 1932-3-8 2698 Orange Santiago Dam at W base of Santa Ana Mts. 305 Comment
  UCSB56505  Plantago erecta Marsh, K. 1978-3-16 Orange Irvine Ecological Preserve; Hill #1 57 Comment
  UC536911  Plantago major Lawrence M. Booth 1932-6-28 1219 Orange Bolsas Marsh Comment
  RSA698384  Plantago major R. H. McArthur 1934-4-14 s.n. Orange Forks of Laguna Canyon. Comment
  RSA791464  Plantago major Keith E. Hoffmaster 1927-5-22 955 Orange Near Santa Ana. CP3. Comment
  RSA652981  Platanus racemosa Darren Day, Hal Willis 1984-5-5 16 Orange This plant was found growing on the east side of Laguna Canyon Rd. as you are traveling towards the city of Laguna Beach. This location is approximately 3.4 miles out of town. Comment
  RSA703087  Platanus racemosa Fred M. Roberts, Art Davenport 2003-9-11 6007 Orange Rancho Mission Viejo: Donna O'Neil Land Conservancy, tributary west of Cristianitos Cyn., 1.52 km NNW Sycamore Gate and 250 m W of Cristianitos Road. 152 Comment
  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
  RSA722432  Platystemon californicus Frances Battey s.n. Orange Laguna Hills. Comment
  UCSB48121  Platystemon californicus Fritzke, Sue; Roberts, Fred 1982-4-3 Orange Rancho Mission Viejo; Calif. 74; 7.2km by road E San Juan Capistrano; 1.3km NE Viejo Survey Marker 98 Comment
  SBBG126061  Plecostachys serpyllifolia R. E. Riefner Jr. 2004-12-30 04 -681 Orange vicinity of W St and Pacific Coast Hwy; City of Laguna Beach 4 Comment
  SD239618  Plecostachys serpyllifolia R. E. Riefner Jr. 2011-7-7 11 88 Orange City of Dana Point, S of Mussel Cove, N of Salt Creek Beach Park. 7 Comment
  CDA34952  Plecostachys serpyllifolia R. E. Riefner Jr. 2009-7-18 09 -151 Orange Dana Point; beach near Salt Creek, vicinity of Ritz Carlton Resort. Comment
  RSA731530  Plecostachys serpyllifolia R. E. Riefner 2006-7-26 06 -319 Orange City of Irvine, along N side of Irvine Blvd. at SR 133 on-ramp. 62 Comment
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Dec 13 2012
  POM201842  Pluchea odorata L. M. Booth 1932-7-19 1272 Orange Bolsas Marsh. Comment
  RSA719408  Pluchea odorata Fred M. Roberts, Robert L. Allen 2006-10-8 6427 Orange San Juan Capistrano: San Juan Creek Flood Control Channel, c.a. 0.2 to 0.3km N Stonehill Dr. bridge and 1.1km SSE Marco Forster Jr. High Sch. 4 Comment
  SBBG125306  Pluchea odorata M. H. White 2006-9-23 Orange San Joaquin Marsh Freshwater Marsh, UC Natural Reserve, SW edge, along San Diego Crk, N of University Drive, E Hwy 73 2 Comment
  UCR146539  Pluchea odorata Scott D. White 2004-7-7 10605 Orange South Coast, Laguna Niguel, along Pacific Island Drive 122 Comment
  SD237347  Pluchea sericea Dick Newell, Don Millar 2010-4-27 20 Orange Peninsular Range; Santa Ana Mtns. Foothills: Lomas de Santiago, Agua Chinon wash 1/4 mile north of Hwy 241 toll road. 226 Comment
  UC520003  Pluchea sericea Joseph Andorfer Ewan 1932-7-9 7488 Orange 4 mi below Rincon; Santa Ana River Comment
  RSA0027436  Poa annua Fred M. Roberts 2012-7-18 7677 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
  RSA731943  Poa annua Fred M. Roberts, Sandy Leatherman 2007-11-27 6692 Orange Yorba Linda: drainage channel on east side of Amberdale Dr. ca. 0.3 km S Fairmont Blvd. 118 Comment
  SEINET3123526 Image available Poa annua A. C. Sanders, T. B. Salvato 2008-1 35357 Orange Peninsular Range; Santa Ana Mtns.; Lomas de Santiago, Santiago Canyon above (S of) mouth of Hangman Tree Canyon, just below Modjeska Canyon confluence 366 Comment
  IRVC22700  Poa scabrella Fred M. Roberts 1985-5-9 1784 Orange Santa Ana Mountains: Upper McVicker Canyon, 1.8km NE Los Pinos Peak. Peninsular Ranges 1113 Comment
  RSA73  Poa secunda J. T. Howell 1928-2-7 830 Orange Near the ranch houses, Rancho Santa Ana 152 Comment
  RSA731973  Poa secunda A. C. Sanders, Fred M. Roberts 2008-4-8 34764 Orange Peninsular Range; Lomas de Santiago, Loma Ridge, SSE of Santiago Reservoir on Loma Ridge Spur Rd., above Dripping Springs Loop Rd 457 Comment
  RSA0097081  Polycarpon depressum J. Russell Bruff s.n. Orange Roadside. Comment
  UCR102030  Polycarpon tetraphyllum B. G. Pitzer 1997-3-25 3027 Orange San Joaquin Hills, Crystal Cove State Park, Pelican Point Area, grassland between Pacific Coast Hwy and the bike trail 30 Comment
  RSA0061171  Polygala cornuta subsp. fishiae Robt. Allen, Richard S. Newell, Len Gardner 2006-7-2 s.n. Orange San Joaquin Hills, Laguna Coast Wilderness Park, Laurel Canyon, near trail. 106 Comment
  RSA450863  Polygala cornuta var. fishiae Gordon Marsh, K. G. Marsh 1977-11-21 s.n. Orange Along N side of Ortega Hwy, 0.6 miles W of Lower San Juan Picnic ground. Comment
  RSA5351  Polygala cornuta var. fishiae Carl B. Wolf 1932-12-19 4433 Orange Main divide of Santa Ana Mts. between Sierra Peak and Skyline Drive. 762 Comment
  RSA5379  Polygala cornuta var. fishiae B. D. Stark 1932-12-30 4460 Orange Rancho Santa Ana, 1/4 mile W of Roundtop. 457 Comment
  RSA557729  Polygala cornuta var. fishiae Steve Boyd, Tim S. Ross 1992-5-4 7172 Orange Santa Ana Mountains, San Juan Canyon along Ortega Hwy (Hwy 74) at pullout 2.9 miles east of San Juan Guard Station. Comment
  SBBG128684  Polygala cornuta var. fishiae R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49615 Orange Ortega Hwy (74) ca. 2.5 mi above San Juan Fire Station, lateral ravine tributary to San Juan Cyn; Santa Ana Mtns Comment
  UCR18431  Polygonum amphibium var. emersum O. F. Clarke 1975-6-27 s.n. Orange San Joaquin Marsh near UCI Comment
  RSA743378  Polygonum aviculare Fred M. Roberts 2008-4-9 6858 Orange Dana Point: Dana Point Headlands, CNLM Preserve near Outlook 2, 0.7 km W Marine Institute (Dana Point Harbor). 52 Comment
  UCR158163  Polygonum aviculare Adrian Wolf 1998-5-15 271 Orange South Coast, Lambert Reservoir, north of El Toro Marine Corps Air Station 134 Comment
  UCR195017  Polygonum aviculare A. C. Sanders, Fred M. Roberts 2008-8-7 35972 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
  UCR99858  Polygonum aviculare Scott D. White 1993-3-5 1126 Orange Tustin. Marine Air Corps Air Station: SE of Red Hill Ave and NE of Barranca 15 Comment
  RSA5970  Polygonum aviculare subsp. aviculare Carl B. Wolf 1932-9-13 4043 Orange Bryant Ranch, No. boundary between San Gabriel River Flood Control Dike and Well. 6 Comment
  RSA756069  Polygonum hydropiperoides T. B. Salvato, Billy Deane 2006-10-16 1927 Orange Irvine, San Diego Creek flood control channel, between Michelson Driveand the 405 Fwy. 9 Comment
  RSA718963  Polygonum lapathifolium Fred M. Roberts, Robert L. Allen 2006-10-8 6417 Orange San Juan Capistrano: San Juan Creek Flood Control Channel, c.a. 0.2 to 0.3km N Stonehill Dr. bridge and 1.1km SSE Marco Forster Jr. High Sch. 4 Comment
  RSA698499  Polygonum persicaria J. R. Bruff 1930-10-5 4 Orange Santa Ana River Bed. Comment
  RSA689928  Polypodium californicum Albert J. Perkins 1913-3-6 s.n. Orange San Juan Hot Springs Comment
  RSA689945  Polypodium californicum M. B. Dunkle 1935-2-23 4340 Orange Dana Point. 9 Comment
  UCR209348  Polypodium californicum Fred M. Roberts 2008-4-14 6890 Orange Santa Ana Mountains, Upper Weir Canyon, east fork, 3.4 km eat of Robbers Peak, Irvine Ranch Conservancy 433 Comment
  UCSB62759  Polypodium californicum Kiefer, Lawrence 1963-11-17 Orange Santa Ana Mtns., Trabuco Canyon, vicinity of the public camps, upper part of canyon 762 Comment
  IRVC23141  Polypogon interruptus Fred M. Roberts 1985-7-10 2006 Orange Capistrano Beach: San Juan Creek, 0.5km from the ocean, 0.2km N of Pacific Coast Highway. southern coastal 2 Comment
  IRVC12899  Polypogon monspeliensis B. T. Gittins 1967-6-11 2010 Orange Upper Newport Bay. southern coastal Comment
  IRVC14815  Polypogon monspeliensis A. S. Boughey 1968-7-9 399 Orange Upper Santiago Canyon. Santa Ana Mountains Comment
  IRVC14816  Polypogon monspeliensis A. S. Boughey 1968-7-9 399 Orange Upper Santiago Canyon. Santa Ana Mountains Comment
  IRVC24285  Polypogon monspeliensis Fred M. Roberts 1985-10-26 2515 Orange Santa Ana River: adjacent to Huntington Beach; 0.7km SSW Adams Street bridge. southern coastal 4 Comment
  IRVC8403  Polypogon monspeliensis J. B. Anderson 1966-4-17 593 Orange Newport Beach: along roadside ditch in field NE of Newport Harbor High School. southern coastal Comment
  UCR170136  Polypogon monspeliensis Jeffrey Ross, R. Zaka 1998-5-2 48 Orange South Coast, North side of San Joaquin Hills; William R. Mason Regional Park, near intersection of Yale Avenue and University Drive 27 Comment
  IRVC176  Polystichum imbricans Mike Munier 1965-4-20 HS 545 Orange Costa Mesa. Southern Coastal Comment
  CAS-BOT-BC72265  Polystichum imbricans subsp. curtum P. C. Everett 1935-6-19 7230 Orange Santa Ana Mts., main divide motorway, Bear Spring 1219 Comment
  IRVC25447  Polystichum imbricans subsp. curtum Fred M. Roberts, K. G. Marsh 1987-5-14 3439 Orange Santa Ana Mtns: Upper Trabuco Canyon, Trabuco Canyon Trail, 1.3km NE Los Pinos Peak. Peninsular Ranges 1231 Comment
  RSA708364  Polystichum imbricans subsp. curtum Fred M. Roberts, Robert L. Allen, Chris Barnhill, Nancy Hatfield 2005-5-30 6228 Orange west slope of Modjeska Peak, Harding Canyon watershed, Main Divide Road, 0.46km W summit. 1670 Comment
  RSA725534  Populus Fred M. Roberts 2007-9-11 6570 Orange Aliso Viejo: tributary to Aliso Creek on west side of Moulton Pkwy., 0.2 km N Aliso Viejo Pkwy., adj. to Kinder Care Learning Center. 83 Comment
  RSA644958  Populus balsamifera subsp. trichocarpa R. E. Riefner, Adrian Wolf 2000-1-24 20 -116 Orange NCCP North Ranch Policy Plan Area. Fremont Canyon: N of Saniago Creek and immediately N. of major stream fork. 305 Comment
  UCR174187  Populus balsamifera subsp. trichocarpa A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33023 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
  RSA5327  Populus fremontii B. D. Stark 1932-12-30 4468 Orange Rancho Santa Ana. River bottom below Mexican houses. 122 Comment
  SD247501  Populus trichocarpa R. E. Riefner Jr. 2012-9-23 12 512 Orange City of Yorba Linda, Santa Ana Canyon, N side of Santa Ana River, La Palma Ave at Via Del Rio Road. 103 Comment
  UCR98272  Porophyllum gracile Scott D. White 1997-3-28 4841 Orange Santa Ana Mountains, Above Modjeska Canyon, proposed water tank site. 488 Comment
  UCSB48228  Portulaca oleracea Roberts, Fred 1981-7-7 Orange Rancho Mission Viejo: Calif. Rte. 74, 5.2km ENE San Juan Capistrano by road 100 Comment
  RSA588881  Potamogeton foliosus Fred M. Roberts, D. Bontrager 1990-6-5 4674 Orange Rancho Mission Viejo: Upper Gabino Canyon, 3.7km ESE Point Rancho Survey Market. 245 Comment
  UC537265  Potentilla anserina subsp. pacifica Lawrence M. Booth 1932-6-28 1215 Orange Bolsas Marsh Comment
  IRVC20180  Prosopis velutina Karlin G. Marsh 1983-9-21 s.n. Orange San Juan Capistrano; brushy lateral draining into south-facing canyon, near top of ridge. Southern Coastal Comment
  RSA443844  Prunus ilicifolia Gordon Marsh, Karlin G. Marsh 1977-5-2 s.n. Orange Pine Canyon, between Blue Light Mine and second mine, near swithback. Comment
  RSA5316  Prunus ilicifolia B. D. Stark 1933-1-5 4499 Orange 2 mi. so. of summit of skyline Drive on road along ridge to Santiago Peak. Santa Ana Mts. 1067 Comment
  RSA663154  Prunus ilicifolia R. E. Riefner 2000-6-1 20 -455 Orange NCCP North Ranch Policy Plan Area. N of Irvine Lake and W of Black Star Cyn; W. of dirt access rd. 473 Comment
  POM202175  Pseudognaphalium biolettii L. M. Booth 1932-5-19 1067 Orange Newport Bay Comment
  RSA696917  Pseudognaphalium biolettii Anonymous s.n. Orange Orange County park Comment
  RSA747633  Pseudognaphalium biolettii Fred M. Roberts 2008-5-16 6980 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
  UCR106257  Pseudognaphalium californicum B. G. Pitzer 1996-4-30 2800 A Orange San Joaquin Hills, Crystal Cove State Park, south of City of Irvine on State Hwy 1 (Pacific Coast Hwy) 15 Comment
  UC468798  Pseudognaphalium californicum C. F. Millspaugh 1920-2-7 4697 Orange Pebble Beach Road Comment
  CAS-BOT-BC502069  Pseudognaphalium leucocephalum R. E. Riefner, Jr. 2015-12-9 15 -459 Orange Rancho Mission Viejo, E of San Juan Capistrano, San Juan Creek, W of Antonio Pkwy, N side of Ortega Hwy (Hwy 74), near Sendero Field Park 55 Comment
  CAS-BOT-BC502070  Pseudognaphalium leucocephalum R. E. Riefner, Jr. 2015-12-9 15 -461 Orange Rancho Mission Viejo, E of San Juan Capistrano, San Juan Creek, W of Antonio Pkwy, N side of Ortega Hwy (Hwy 74), near bridge at Sendero Field Park 55 Comment
  CHSC108408  Pseudognaphalium leucocephalum R. E. Riefner Jr. 2007-2-13 07 -55 Orange City of San Juan Capistrano, vicinity of La Novia Ave. and San Juan Creek. 31 Comment
  JEPS20429  Pseudognaphalium stramineum L. M. Booth 1932-7-19 1275 Orange Bolsa Chica Comment
  UCD135212  Pseudognaphalium stramineum E. Frost 1996-5-11 19 Orange Newport Back Bay, 25 yards in along bike path. 7 Comment
  RSA5343  Pseudotsuga macrocarpa B. D. Stark 1933-1-4 4493 Orange Bottom of Claymine Canyon. No. end of Santa Ana Mts. 305 Comment
  UCR201597  Pseudotsuga macrocarpa June Latting, F. Shropshire 1972-4-28 s.n. Orange Peninsular ranges/ Santa Ana Mountains, Silverado Canyon, 6.3 mi from Silverado Forest Station [presumably up canyon from Silverado] at 'S' curve in road 1220 Comment
  RSA583213  Psilocarphus brevissimus R. E. Riefner 1995-4-28 95 -106 Orange San Clemente State Beach. Comment
  UCR27153  Psilocarphus tenellus E. W. Lathrop 1966-4-10 6155 Orange Peninsular Range; Santa Ana Mtns, Silverado Canyon 732 Comment
  UCR269240  Psilotum nudum R. E. Riefner Jr. 2015-11-22 15- 453 Orange South Coast, city of Costa Mesa, east side of Orange County Fairground, Lot #A-5, west of Newport Blvd. and north of Fair Drive 32 Comment
  UCR282159  Psilotum nudum R. E. Riefner Jr. 2017-1-15 17- 36 Orange South Coast, city of Newport Beach, Polaris Drive, south of Evening Star Drive, Westcliff Park, north side of Newport Bay 3 Comment
  IRVC26429  Ptelea aptera Mark A. Elvin 2004-2-22 3151 Orange UCI Arboretum Southern Coastal 15 Comment
  RSA542462  Pterostegia drymarioides Fred M. Roberts 1987-3-31 3318 Orange Lomas de Santiago: Lomas [Loma] Ridge, Upper Serrano Canyon, east fork, reservoir, 2.2 kilometers SE Bolero Lookout. 406 Comment
  RSA38191  Pulicaria hispanica P. A. Munz 1946-10-2 11554 Orange Santa Ana River Canyon, Rancho Santa Ana 122 Comment
  OBI59561  Pulicaria paludosa T. C. Fuller 1963-10-9 11362 Orange Santa Ana cyn, 0.1 mi S of riverside fwy to Anaheim, ca 2 mi W of the Riverside Co. line Comment
  UCR146951  Pulicaria paludosa Mark A. Elvin 2003-8-24 3013 Orange Southern Coastal, San Joaquin Hills, Irvine, UCI, 100 m N of the intersection of Shady Canyon Drive and Bonita Canyon Road 72 Comment
  UCR151234  Pulicaria paludosa Steve Boyd, R. E. Riefner 2000-9-13 10307 Orange Peninsular Ranges; Santa Ana Mts region, Santa Ana Mountains: Fremont Canyon, about 1.5 air miles west of Oat (a.k.a. Oak) Flat and 1.5 miles southeast of Claymont clay mine. 427 Comment
  IRVC26753  Pulicaria paludosa Mark A. Elvin 2003-8-24 3013 Orange San Joaquin Hills, Irvine, UCI, 100m N of the intersection of Shady Canyon Drive and Bonita Canyon Road. Southern coastal 72 Comment
  UCR188933  Punica granatum Robert DeRuff 2007-11-24 s.n. Orange Newport Beach, Upper Newport Bay, lower Big Canyon near Back Bay Drive 3 Comment
  UC1607991  Quercus Donald G. Nelson 1935-3-23 187 Orange hills n. Fullerton Comment
  UCD47714  Quercus X acutidens John M. Tucker 1941-5-30 255 Orange Low shrub, in San Juan Canyon, 200 yards west of San Juan Guard Station, Highway 74, Orange County, California. Comment
  RSA476854  Quercus agrifolia Claire Kibbe 1936-07 19954 Orange Santa Ana Canyon. Comment
  UC484237  Quercus agrifolia C. B. Wolf 1932-3-6 Orange 1.5 mi below Trabuco Oaks (on Trabuco Canyon Road, w slope Santa Ana Mts.); Santa Ana Mts. 304 Comment
  SEINET13953030 Image available Quercus agrifolia Kay Raeder 1955-1 499 Orange Flying Cow ranch, San Jose Hills, Pacific Coast, 850 feet altitude 259 Comment
  IRVC24551  Quercus berberidifolia Fred M. Roberts 1983-10-9 1141 Orange Laguna Beach: Temple Hill S of Upper Rancho Laguna Canyon near Del Mar Street. Southern Coastal 200 Comment
  RSA12734  Quercus berberidifolia E. R. Johnson 1933-11 5557 Orange Rancho Santa Ana. Comment
  RSA171930  Quercus berberidifolia Robert F. Thorne 1963-7-26 32828 Orange Santa Ana Mts., Cleveland National Forest, Trabugo District. 1189 Comment
  UCD170637  Quercus dumosa D. O. Burge 2017-11-17 2326 Orange Laguna Niguel. 140 Comment
  UCD63655  Quercus dumosa Daniel Sanchez-Mata 2006-7-1 s.n. Orange Laguna Niguel. Dana Point Highlands. Pacific Island Drive. 70 Comment
  RSA684303  Quercus engelmannii Fred M. Roberts, David E. Bramlet 2003-3-13 5597 Orange Donna O'Neill Land Conservancy: Shady Cyn. tributary to Cristianitos Canyon, 1,200m NW Sycamore Gate and 914m W Cristianitos Rd. 177 Comment
  RSA697639  Quercus lobata Unspecified 1936-11 s.n. Orange Birch Park. Comment
  RSA598966  Rafinesquia californica Scott D. White 1997-3-28 4838 Orange Santa Ana Mountains: above Modjeska Canyon, proposed water tank site. 427 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
  JEPS55026  Ranunculus californicus Alice King 1908-3-9 Orange South Main Street Santa Ana Comment
  POM7623  Ranunculus hebecarpus P. A. Munz, R. D. Harwood 1920-4-25 3739 Orange Santa Ana Mountains, Silverado Canyon. 549 Comment
  UCR217293  Raphanus sativus Mark A. Elvin 2003-1-26 2235 Orange South Coast, Irvine, UC Irvine Open Space Preserve, NE side, between core of UCI campus (E Peltason Dr.) and Hwy 73 69 Comment
  CDA25895  Rhamnus alaternus Mark A. Elvin, D. G. Kelch 2006-12-9 5300 Orange Southern Coastal; Newport Backbay; Big Canyon, lower end. Comment
  RSA685139  Rhamnus alaternus Roger Reinke 2003-2-18 s.n. Orange South Coast: Newport Back bay, Big Canyon. 30 Comment
  UCR125475  Rhamnus alaternus Roger E. Reinke 2003-2-18 s.n. Orange South Coast, Newport Back Bay, Big Canyon 30 Comment
  IRVC29872  Rhamnus alaternus Mark A. Elvin, D. Kelch 2006-12-9 5300 Orange Newport Backbay; Big Canyon, lower end. Southern Coastal 3 Comment
  RSA698606  Rhamnus californica Unspecified s.n. Orange Arch Beach. Comment
  UCR174207  Rhamnus californica A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33057 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
  POM261672  Rhamnus californica subsp. californica W. Pequegnat 1941-09 s.n. Orange Silverado Canyon. Comment
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Sep 7 2010
  RSA801993  Rhamnus crocea R. H. McArthur 1934-9-17 s.n. Orange Gypsum Canyon Comment
  POM243762  Rhamnus ilicifolia Percy C. Everett 1935-6-19 7242 Orange Trabuco Canyon, 2 mi. below forest service patrol station 366 Comment
  RSA462  Rhamnus ilicifolia J. T. Howell 1927-6-17 152 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  UC592829  Rhamnus ilicifolia Carl B. Wolf and E. R. Johnson 1933-11-3 Orange Silverado Canyon, base of Silverado Motorway Santa Ana Mts. 731 Comment
  UCSB21805  Rhamnus ilicifolia Merrill, Roy 1965-4-11 Orange 11.5 mi. on State 74 from U.S. 101, Santa Ana Mts. 274 Comment
  UC592700  Rhamnus tomentella subsp. cuspidata Carl B. Wolf 1935-6-18 Orange Summit of Santiago Pk. Santa Ana Mts. 1731 Comment
  UCR130347  Rhus glauca A. C. Sanders, Mark A. Elvin 2003-10-12 27327 Orange Southern Coastal Slope, Irvine, UCI Arboretum, UCI campus near intersection of Jamboree Blvd. and Campus Dr. 15 Comment
  CAS-BOT-BC170435  Rhus integrifolia Helen D. Geis 1902-4-1 s.n. Orange Red Hill near Santa Ana Comment
  CLARK-A1528-116  Rhus integrifolia Cesareo Perez 1971-5-4 2 Orange Villa Park Comment
  RSA3178  Rhus integrifolia C. B. Wolf 1932-3-8 2685 Orange 1/2 mile N of Corona del Mar, Newport Bay. 8 Comment
  RSA751419  Rhus integrifolia A. C. Sanders, Fred M. Roberts 2008-7-3 35693 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
  UCR193787  Rhus integrifolia A. C. Sanders, Fred M. Roberts 2008-7-3 35693 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along Windy Ridge Rd. at hairpin turn/road junction below huge sandstone boulder (visible on Google Earth), 1.2 mi. SE of Walnut Canyon Reservoir 285 Comment
  UCR203983  Rhus integrifolia Fred M. Roberts 2008-3-12 6722 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
  RSA734695  Rhus lancea A. C. Sanders, Fred M. Roberts 2008-6-17 35500 Orange Weir Canyon, Windy Ridge Rd., saddle on ridge at head, above the Eastern Transportation Corridor 400 Comment
  RSA695989  Rhus ovata Keith E. Hoffmaster 1934-4-8 s.n. Orange Gypsum can (n. Corona), Santa Ana Mts Comment
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Dec 11 2011
  SEINET10634921  Rhus ovata Greg Gust, Leith Nye 2005-3-12 Gust 567 Orange Cleveland National Forest, on Hwy 74 ca. 0.5 m W of county boundary with Riverside at a pullout. 401 Comment
  UC484234  Ribes californicum var. hesperium C. B. Wolf 1931-1-30 1824 Orange Claymine Canyon Santa Ana Mts. 457 Comment
  UCR79243  Ribes californicum var. hesperium Steve Boyd, T. S. Ross 1992-5-20 7460 Orange Southern Santa Ana Mtns, San Mateo Canyon Wilderness Area: Western edge of the wilderness in Lucas Canyon along canyon floor from crossing of Lucas Canyon Trail, upstream 0.25 mi to spur trail leading to old mining habitations in side canyon. 412 Comment
  RSA162689  Ribes indecorum J. D. Olmsted 1960-1-9 1093 Orange Hidden Ranch at Old Indian Campground, Santa Ana Mts. Black Star Creek. 640 Comment
  CAS-BOT-BC168945  Ribes malvaceum Ira L. Wiggins 1966-4-11 20419 Orange Trabuco Canyon, along north-easterly facing slope of S side of stream, about 1/2 mi. above mouth of canyon. Comment
  UC1127272  Ribes malvaceum J. B. Spring 1931-4-6 29 Orange n Trabujo Canyon; Corona Quadrangle 243 Comment
  RSA1337  Ribes malvaceum var. viridifolium E. R. Johnson 1929-3-12 1251 Orange Canyon West of Roundtop Rancho Santa Ana. 457 Comment
  RSA16345  Ribes malvaceum var. viridifolium Percy C. Everett 1935-6-18 7188 Orange Santa Ana Mts., Main Divide Motorway to Santiago Pk., 1 mi. from Ortega Highway. 732 Comment
  RSA441490  Ribes malvaceum var. viridifolium Anstruther Davidson 1977-5-18 5623 Orange Santa Ana Mts, Cleveland National Forest, Bear Springs. 1220 Comment
  SD27978  Ribes malvaceum var. viridifolium B. D. Stark 1932-2-22 Orange Rancho Santa Ana, Santa Ana Canyon, in canyon west of Roundtop Peak. 456 Comment
  RSA0018262  Ribes roezlii Christopher Davidson 1977-5-18 5613 Orange Cleveland National Forest; Santiago Peak (on Orange-Riverside Co. line) 1707 Comment
  CAS-BOT-BC186105  Ribes roezlii var. roezlii Carl B. Wolf 1941-8-15 11154 Orange Santa Ana Mts. Summit Santiago Peak 1706 Comment
  CAS-BOT-BC173739  Ribes speciosum John Thomas Howell 1927-6-6 2451 Orange Santa Ana River bottom, Santa Ana [Canon] Canyon 152 Comment
  OBI6060  Ribes speciosum Carl B. Wolf 1931-3-6 1863 Orange 1 mi N of mouth of harding cyn, W slope of Santa Ana Mts 305 Comment
  POM7068  Ribes speciosum L. T. Street 1919-3-30 2456 Orange Turnball Canyon. Comment
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Sep 5 2013
  RSA354  Ribes speciosum J. T. Howell 1927-6-24 205 Orange Aliso Canyon, Rancho Santa Ana. 274 Comment
  RSA733954  Ribes speciosum Unspecified 1934-2-11 s.n. Orange Black Star Canyon Rd. Comment
  UCR3197  Ribes speciosum Chuck Elliott 1964-5-2 s.n. Orange Los Angeles Basin Region, Carbon Canyon 61 Comment
  CDA4862  Ricinus communis D. G. Kelch 2006-12-9 6 .56 Orange Irvine. University Dr along tidal creek just E of I-73. Comment
  UCR100446  Ricinus communis B. G. Pitzer 1996-4-30 2779 Orange South Coast, Upper Newport Bay, Calif. Dept. Fish & Game Ecological Reserve, off (W of) Jamboree Road 6 Comment
  RSA652429  Ricinus communis Norman Willis 1948-2-8 s.n. Orange 2 miles E of Orange. 60 Comment
  RSA0050276  Romneya coulteri Fred M. Roberts 2013-6-12 7799 Orange Peninsular Ranges SANTA ANA MTNS.: Lower Silverado Canyon along Silverado Creek on north side of Silverado Canyon Road,, 0.9 km ENE Silverado School and 1.7 km up stream Black Star Road crossing. 332 Comment
  RSA267969  Romneya coulteri E. W. Lathrop 1977-6-16 7654 Orange Silverado Canyon. Santa Ana Mts. Cleveland National Forest, Trabuco District. 366 Comment
  RSA564318  Romneya coulteri B. Pitzer 1992-5-21 1938 Orange Cleveland National Forest. State Hwy 74, 1 mi uphill from the 2000 ft. marker and to the left c. 1 mi on an old paved road. 762 Comment
  RSA658201  Romneya coulteri T. A. Daubert 1991-5-19 656 Orange Tucker Wildlife Sanctuary, Modjeska Canyon, turn around island. Comment
  RSA734669  Romneya coulteri A. C. Sanders, T. B. Salvato 2008-5-13 35373 Orange Lomas de Santiago, Santiago Canyon above (S of) mouth of Hangman Tree Canyon, just below Modjeska Canyon confluence 366 Comment
  UC1618114  Romneya coulteri Donald G. Nelson 1936-6-5 435 Orange Hills NE of Fullerton 91 Comment
  UCR23130  Romneya coulteri Sue Damon 1981-5-31 32 Orange One half mile SW of intersection of Peralta Hills Dr. and Cerro Vista Rd 335 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-BC74421  Rorippa curvisiliqua P. A. Munz 1918-5-4 2208 Orange Laguna Lakes. Comment
  POM144067  Rorippa curvisiliqua L. R. Abrams 1901-06 1768 Orange Laguna - Lake Comment
  CDA1082  Rorippa officinalis D. G. Kelch 2006-12-9 6 .544 Orange Along Newport Back Bay Dr. in side canyon. Comment
  POM201872  Rosa californica L. M. Booth 1932-6-7 1161 Orange Newport Lagoon. Comment
  RSA499273  Rosa californica Claire Kibbe 1936-07 s.n. Orange Santa Ana Canyon. Comment
  UC212548  Rosa californica I. M. Johnston 1918-9-3 2140 Orange Laguna Canyon Comment
  POM2665  Rosa californica I. M. Johnston 1918-9-3 2140 Orange San Joaquin Hills. Laguna Canyon. upper end of the 90 degree curve in the road 76 Comment
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Jun 23 2015
  UCD125433  Rosmarinus officinalis A. C. Sanders 1990-10-6 10220 Orange Newport Bay, North Star County Beach area on the SW end of the bay, ca. 2 km inland of Hwy 1. 1 Comment
  RSA221063  Rubus ursinus E. W. Lathrop 1966-5-1 6259 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland Nat'l Forest, Santa Ana Mountains. 396 Comment
  RSA652643  Rubus ursinus Matt Bogdanoff 1981-4-11 3 Orange Calif. Hwy 142, 2.5 miles (?) west of Sleepy Hollow. [Carbon Canyon Road, N of Yorba Linda] 183 Comment
  RSA699216  Rubus ursinus R. H. McArthur 1934-2-27 s.n. Orange Santa Ana River at 1st Street Comment
  RSA797907  Rubus ursinus Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49817 Orange Santa Ana Mountains: Trabuco Canyon. Comment
  VVC457  Rubus ursinus F. Ambrey 1959-5-4 s.n. Orange Santa Ana Mtns., 0.8 mi W of pavement end in Silverado Cyn. 649 Comment
  RSA699560  Rubus vitifolius Minor Warne 1934-03 s.n. Orange Santa Ana River Banks Comment
  RSA5814  Rumex conglomeratus Carl B. Wolf 1932-6-28 3806 Orange Bryant Ranch: Edge of field on Bixby Ave. 9 Comment
  CLARK-A1528-923  Rumex crispus Patricia A. Andrews 1975-6-26 5912 Orange Capistrano Bay Beach 9 Comment
  UCR102022  Rumex crispus B. G. Pitzer 1997-3-25 3013 Orange San Joaquin Hills, Crystal Cove State Park, Pelican Point Area, grassland between Pacific Coast Hwy and the bike trail 30 Comment
  RSA650638  Rumex hymenosepalus Daniel Truong 1991-5-13 32 Orange Irvine Regional Park, left field adjacent to main entrance, within 1/4 mile radius of 'closed area' Comment
  RSA749313  Rumex hymenosepalus Fred M. Roberts 2008-3-21 6790 Orange Santa Ana Mtns.: Central Weir Cyn. along Upper Weir Cyn. Rd., 1.3 km ESE Robbers Peak, about 2 km above canyon mouth. 224 Comment
  UC205909  Rumex maritimus D. L. Crawford 1916-7-26 Orange Laguna Canyon Laguna Beach Region Comment
  UCR107444  Rumex maritimus B. G. Pitzer, M. Georgiady 1997-4-5 3084 Orange San Joaquin Hills, Crystal Cove State Park, portion across highway on the beach, bluffs immediately above beach and adjacent terraces for southeast end of park. 24 Comment
  POM78664  Rupertia physodes Albert J. Perkins 1920-5-16 s.n. Orange Trabuco Canyon, Comment
  RSA0059640  Salicornia pacifica L. C. Wheeler 1933-10-21 2222 Orange Newport Bay. 3 Comment
  JEPS59850  Salicornia subterminalis Lawrence M. Booth 1932-5-30 1135 Orange Newport Bay Comment
  RSA5282  Salicornia virginica B. D. Stark 1932-12-9 4430 Orange Capistrano Beach at Doheny Palisades. 5 Comment
  POM177842  Salix exigua Marcus E. Jones 1930-3-3 26532 Orange Santa Ana Mountains. Comment
  POM182045A  Salix exigua Carl B. Wolf 1932-7-7 3843 Orange Rancho Santa Ana, along ditch on Bixby Ave., 1 km. west of Hansen Road, near town of Los Alamitos. 8 Comment
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Apr 11 2014
  RSA143  Salix exigua J. T. Howell 1927-6-6 41 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  RSA5779  Salix exigua Carl B. Wolf 1932-7-7 3845 Orange Bixby Ave., 0.7 mile W of Hansen road (0.2 mile W of SE corner of NE/4 of NW/4). 8 Comment
  UC492441  Salix exigua Carl B. Wolf 1932-7-7 3845 Orange near town of Los Alamitos (Rancho Santa Ana along ditch on Bixby Ave., 1 km. w of Hansen Rd., Bryant Ranch) Comment
  RSA366296  Salix gooddingii Fred M. Roberts Jr. 1985-6-12 1906 Orange Irvine: W.R. Mason Regional Park, Culver, 0.2km S University Dr.; 1.7km NE UC Irvine. 17 Comment
  RSA5308  Salix gooddingii B. D. Stark 1933-1-7 4509 Orange Rancho Santa Ana, river bottom below ranch houses. 122 Comment
  RSA542354  Salix gooddingii Fred M. Roberts Jr., Gordon Marsh 1987-8-31 3603 Orange Santa Ana River: adjacent to Santa Ana, 0.5 km NE 17th St. bridge. 27 Comment
  UCR112096  Salix gooddingii A. C. Sanders, D. Malueg, K. D. Jones 2000-4-19 23337 Orange Pacific Coast, Bolsa Chica Lagoon, along dirt roads in oil field, east of Hwy 1, east of Bolsa Chica St. 11 Comment
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Jun 19 2006
  CAS-BOT-BC106947  Salix laevigata Scott D. White; Brian Leatherman 1997-6-12 5323 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. 75 Comment
  LA208694  Salix laevigata Carl Hedin; Joseph Ewan 1932-7-9 7680 Orange Santa Ana River 8 km below Prado (Rincon) [Area 7] Comment
  LA208697  Salix laevigata Carl Hedin; Joseph Ewan 1932-7-9 7683 Orange Santa Ana River 8 km below Prado (Rincon) [Area 7] Comment
  RSA734891  Salix laevigata A. C. Sanders, Mitch Provance 2008-5-20 35425 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago area, Santiago Creek Canyon, c. 3/4 mile blow Modjeska Canyon confluence. 345 Comment
  UCR138398  Salix laevigata Scott D. White, Brian Leatherman 1997-6-12 5323 Orange Santa Ana Mtn. foothills, E of San Juan Capistrano: San Juan Creek between Hwy 74 bridge and Mission Vieja site, i.e. c. 2-4 mi east of Hwy I-15/Hwy 74 junction 76 Comment
  IRVC8760  Salix lasiolepis Charles W. Sexton 1965-2-12 s.n. Orange Newport Beach. Southern Coastal Comment
  POM178868  Salix lasiolepis Marcus E. Jones 1930-2-2 s.n. Orange Near Laguna. Comment
  RSA750119  Salix lasiolepis A. C. Sanders, Fred M. Roberts 2008-8-7 35985 Orange lower Weir Canyon, at narrow gorge c. 0.6 mi. above mouth of cyn at Irvine Ranch gate. 185 Comment
  RSA0048653  Salix lasiolepis G. Jentges 1932-2-6 s.n. Orange Wash near railroad track. Comment
  POM177833  Salix lucida subsp. lasiandra Marcus E. Jones 1930-2-2 s.n. Orange Near Laguna. Comment
  RSA488136  Salix lucida subsp. lasiandra Fred M. Roberts Jr. 1985-8-23 2176 Orange Mission Viejo: Oso Pkwy., ca. 1.8km E San Diego Fwy. 133 Comment
  CAS-BOT-BC126301  Salix sessilifolia John Thomas Howell 1927-6-6 2440 Orange Santa Ana River bottom 152 Comment
  CAS-BOT-BC126302  Salix sessilifolia John Thomas Howell 1927-6-6 2440 Orange Santa Ana River bottom, Santa Ana [Canon] Canyon 152 Comment
  CAS-BOT-BC126305  Salix sessilifolia Carl B. Wolf 1932-3-16 2715 Orange Rancho Santa Ana, Santa Ana River bottom 121 Comment
  RSA39330  Salpichroa origanifolia E. L. Paddock 1943-5-19 12747 Orange 1 mile east of Brea. Comment
  UCR128168  Salsola australis Scott D. White, Michael Honer 2003-7-10 9625 Orange Santa Ana Mountain foothills, Hills above Trampas Canyon, just south of Ortega Hwy 183 Comment
  POM713  Salsola tragus D. L. Crawford 1915-09 s.n. Orange Huntington Beach. Comment
  UCD99478  Salsola tragus Ira L. Wiggins 1965-10-18 20271 Orange Vacant lot at corner of Chapman St. and Victor Dr., Fullerton. Comment
  UCLA55657  Salvia C. Epling and H. Lewis 1940-4-21 Orange 6 mi e San Juan Capistrano Comment
  RSA562812  Salvia apiana Steve Boyd, T. S. Ross 1992-5-20 7484 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of the wilderness in Lucas Canyon, along foot trail upstream from end of old roadgrade to upper homestead (corrugated steel building). 350 Comment
  UC1124655  Salvia apiana A. Lewis 1934-5-1 434 Orange Los Pinos Peak; Cleveland National Forest, Elsinore Quad. 1036 Comment
  RSA542482  Salvia columbariae Fred M. Roberts, Teresa Sholars 1988-3-29 3881 Orange Santa Ana Mountains: Hot Springs Canyon, 0.5 km by road north Hwy 74, 0.9 km ESE Juan Rancho Survey Marker. 223 Comment
  RSA751255  Salvia columbariae A. C. Sanders, Fred M. Roberts 2008-7-16 35876 Orange Lomas de Santiago, Santiago Creek wash at and above the confluence of Hangmans Tree Canyon. 358 Comment
  UCLA70172  Salvia columbariae W. E. Pequegnat 1937-9-7 101 Orange Santiago Peak; Santa Ana Mts. Comment
  CAS-BOT-BC233674  Salvia leucophylla Carl B. Wolf 1932-6-2 3701 Orange Rancho Santa Ana between Administration Bldg. and tennis court, Santa Ana Canyon 198 Comment
  RSA257047  Salvia leucophylla W. Pequegnat 1940-5-26 s.n. Orange Black Star Canyon, Santa Ana Mts. 610 Comment
  RSA587882  Salvia leucophylla Fred M. Roberts 1990-5-8 4617 Orange Chino Hills: Soquel Canyon, c. 1.2 km NNW of Gilman Peak. 240 Comment
  UCD125599  Salvia leucophylla J. E. Eckert 1945-6-28 s.n. Orange location unknown. Comment
  CAS-BOT-BC229976  Salvia mellifera John Thomas Howell 1927-6-8 2459 Orange Southern Puente Hills, in the Santa Ana Canon [Canyon] 213 Comment
  RSA590946  Salvia mellifera Fred M. Roberts 1991-5-2 4779 Orange San Joaquin Hills: Laguna Canyon, Laguna Laurel, just west of Laguna Canyon Road, c. 2 km N junction El Toro Road, 4.5 kilometers E Signal Peak. 110 Comment
  UCR131892  Salvia mellifera J. Mallory, V. McCoy 1995-7-3 6454- 127 Orange Santa Ana Mountains: Blind Canyon, c. 0.5 mi. NE of confluence w/ Santiago Canyon Wash; north of Irvine Lake. 300 Comment
  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
  POM4123  Salvia spathacea Lois Clency 1914-07 s.n. Orange Laguna. Comment
  CSUSB687  Sambucus cerulea Nancy Robb 1966-4-15 Orange 4 miles southeast of Yorba Linda, 500 yards off Santa Ana Canyon Road. 121 Comment
  RSA658215  Sambucus mexicana T. A. Daubert 1991-5-26 656 Orange Tucker Wildlife Sanctuary, Modjeska Canyon inside sanctuary. Comment
  RSA751420  Sambucus mexicana A. C. Sanders, Fred M. Roberts 2008-7-3 35691 Orange Weir Canyon, along Windy Ridge Rd. at hairpin turn/road junction below huge sandstone boulder (visible on Google Earth), 1.2 mi. SE of Walnut Canyon Reservoir 275 Comment
  UCR106271  Sambucus mexicana B. G. Pitzer, M. Georgiady 1997-4-5 3094 Orange San Joaquin Hills, Crystal Cove State Park, portion across highway on the beach, bluffs immediately above beach and adjacent terraces for southeast end of park. 24 Comment
  CAS-BOT-BC238825  Sambucus nigra subsp. caerulea C. B. Wolf 1931-7-24 2292 Orange Ravine at Olinda, lower end of Carbon Canyon 152 Comment
  UC566881  Sanicula arguta H. L. Mason 1926-4-25 2924 Orange 5 mi s of Laguna Comment
  UCR192231  Sanicula arguta A. C. Sanders, Fred M. Roberts 2008-5-6 35268 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
  RSA221030  Sanicula crassicaulis E. W. Lathrop 1966-5-1 6262 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland Nat'l Forest, Santa Ana Mountains. 396 Comment
  RSA263760  Sanicula crassicaulis E. W. Lathrop 1970-1-28 7128 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland Nat l Forest. 396 Comment
  UCD127973  Sanicula crassicaulis P. B. Kennedy 1925-1-12 s.n. Orange Irvine Range. Comment
  UCR191432  Sanicula crassicaulis A. C. Sanders, 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. 457 Comment
  IRVC17131  Sanicula crassicaulis var. crassicaulis A. S. Boughey 1968-4-16 231 Orange Santiago Canyon/Lower Modjeska Cyn, Fleming Property. Santa Ana Mountains Comment
  RSA802286  Sanicula menziesii Keith E. Hoffmaster 1937-4-25 753 Orange Ladd can., Santa Ana Mts. PR8. Comment
  RSA0022435  Sanicula tuberosa R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49794 Orange Santa Ana Mountains: Trabuco Canyon Comment
  RSA713566  Schedonorus arundinaceus R. E. Riefner Jr. 2005-10-1 5 -701 Orange City of Costa Mesa, South Coast Dr. at Susan Rd. 16 Comment
  HSC3171  Schinus molle D. W. Snell 1964-3-27 33 Orange Sterns lease 1.5 mi. E of Brea. Comment
  RSA725514  Schinus molle Fred M. Roberts, Robert L. Allen 2007-9-28 6616 Orange Lomas de Santiago: above lower Santiago Cyn. wash along Santiago Cyn. Rd. just south of Irvine Mesa, 3.3 km N Bolero Lookout. 332 Comment
  RSA0036019  Schinus molle Robert F. Thorne 1977-11-21 50808 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs Comment
  RSA455  Schinus molle J. T. Howell 1927-6-21 182 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA0013909  Schismus barbatus Fred M. Roberts 2012-4-24 7524 Orange San Joaquin Hills: Buck Gully, tributary canyon below San Joaquin Hills Road and 2.0 km W Signal Peak 167 Comment
  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
  UCR193036  Schoenoplectus americanus A. C. Sanders, Fred M. Roberts 2008-6-17 35493 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, West Loma Ridge Spur Road c. 0.8 mi SW of Irvine Lake and 0.9 mi. SE of Sheriff's Training Facility, just east of Hwy 241 280 Comment
  UCSB56462  Schoenoplectus americanus Thorne, Robert 1975-4-6 Orange San Joaquin Marsh: near Irvine and coast Comment
  RSA97  Schoenoplectus maritimus J. T. Howell 1927-6-30 237 Orange Bryant Ranch near Long Beach. 15 Comment
  RSA226634  Scirpus acutus var. occidentalis Christopher Davidson, Gerald L. Benny 1971-6-15 1540 Orange Brea Canyon, 0.5 mile N of Central Avenue, along Brea Creek, near Brea Oil Co. wells. Comment
  IRVC29809  Scirpus californicus Laura D. Lyons, Mark A. Elvin 2006-9-23 423 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
  UCR193764  Scirpus cernuus A. C. Sanders, Fred M. Roberts 2008-7-3 35708 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along Weir Canyon Rd. 1.2 mi. SSE of Walnut Canyon Reservoir, below Upper Blind Canyon Rd. 212 Comment
  UC537256  Scirpus maritimus Lawrence M. Booth 1932-5-30 1133 Orange Newport Lagoon Comment
  RSA542336  Scirpus microcarpus Fred M. Roberts 1988-5-13 3973 Orange Lomas de Santiago: Loma Ridge, Upper Limestone Canyon at spring, 2.5 kilometers NW Bolero Lookout. 428 Comment
  RSA716730  Scirpus microcarpus Fred M. Roberts, David E. Bramlet 2004-11-5 6131 Orange Rancho Mission Viejo: Donna O Neill Land Conservancy, Gato Cyn., tributary to Cristianitos Cyn., 0.23km W Gato Gate. 102 Comment
  UC1125690  Scrophularia californica A. Lewis Apr 1934 385 Orange Silverado Canyon; Cleveland Nat'l Forest, Corona Quadrangle Comment
  RSA425208  Scrophularia californica subsp. floribunda F. R. Fosberg 1931-6-21 S- 5134 Orange Silverado Canyon. Santa Anita Mts. Comment
  UC284873  Selaginella asprella P. A. Munz 1923-9-7 7744 Orange Santiago Peak; Santa Ana Mts. 1706 Comment
  UCSB56506  Senecio aphanactis Marsh, K. 1978-3-16 Orange U.C. Irvine Ecological Preserve: Hill #1 51 Comment
  CAS-BOT-BC363478  Senecio californicus Helen D. Geis 1902-1-1 s.n. Orange Unspecified Comment
  UCSB52922  Senecio californicus Roberts, Fred 1983-3-10 Orange Dana Point Headlands: south of Dana Strand Rd., 0.8km W Dana Point Harbor; 1.0km SW Richard Henry Dana School 66 Comment
Read comments
Dec 12 2018
  CAS-BOT-BC333067  Senecio flaccidus var. douglasii James R. Shevock 1976-10-28 5357 Orange Along FS road 3S04 about Bedford Peak, Santa Ana Mountains, Cleveland National Forest 1097 Comment
  POM201687  Senecio flaccidus var. douglasii L. M. Booth 818 Orange Santa Ana Canyon bottom Comment
  UCR247540  Senecio flaccidus var. douglasii Dick Newell, Judy Booth 2013-9-22 339 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, North Main Divide Road, 2.2 air miles due east of Los Pinos Peak 938 Comment
  OBI64679  Senecio linearifolius var. linearifolius Scott D. White 2004-7-7 10606 Orange South Coast: Laguna Niguel (Dana Point: T8S R8W S9 Comment
  SD218294  Senecio lineatus Mark A. Elvin 2003-8-24 3011 Orange San Joaquin Hills, Irvine, UCI, 100m north of the intersection of Shady Canyon Drive and Bonita Canyon Road. 71 Comment
  IRVC904  Senecio vulgaris D. Dixon 1965-3-25 Orange Silverado Canyon. Santa Ana Mountains Comment
  RSA734851  Senecio vulgaris A. C. Sanders, Mitch Provance 2008-5-20 35412 Orange Lomas de Santiago area, Santiago Creek Canyon, c. 3/4 mile below Modjeska Canyon confluence 345 Comment
  RSA791870  Senecio vulgaris R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49646 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. Comment
  UCR193016  Senecio vulgaris A. C. Sanders, Mitch Provance 2008-5-20 35412 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago area, Santiago Creek Canyon, c. 3/4 mile below Modjeska Canyon confluence 355 Comment
  CAS-BOT-BC364599  Senecio vulgaris Carl B. Wolf 1932-6-28 3766 Orange Bryant Ranch, along Western half of North boundary of 40 acre Valencia Orange Grove; Bryant Ave. & Hansen Rd. Comment
  CAS-BOT-BC364601  Senecio vulgaris Ira L. Wiggins 1966-3-4 20490 Orange Shoulder of Peralta Avenue, near junction of Newport Freeway and Riverside Highway Comment
  CAS-BOT-BC364602  Senecio vulgaris Ira L. Wiggins 1966-3-5 20503 Orange Roadside shoulder along Highway S-18, about 4.5 mi. E. of Laguna Beach Comment
  CAS-BOT-BC364605  Senecio vulgaris Ira L. Wiggins 1966-3-22 20544 Orange Trailside in bottom of canyon, near end of pavement, Silverado Canyon, about 5 mi above Ranger Station, Cleveland National Forest Comment
  RSA4779  Senecio vulgaris James Snow s.n. Orange Bryant Ranch, near Long Beach. South East 1/4 Section 25, Township 4S, Range 12 W, Station #1 plant #1 Comment
  UCR266420  Senna didymobotrya D. E. Bramlet 2009-11-13 4415 Orange South Coast, San Diego Creek between Irvine and Newport Back Bay 8 Comment
  RSA0069225  Senna marilandica Fred M. Roberts, Sandra Leatherman 2008-9-3 7080 Orange Yorba Linda: Santa Ana River Canyon, Santa Ana River, 0.6 km W Gypsum Cyn. bridge, south of La Palma Ave. 113 Comment
  IRVC29813  Sesuvium verrucosum Laura D. Lyons, Mark A. Elvin 2006-9-23 427 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
  CAS-BOT-BC438200  Sesuvium verrucosum Carl B. Wolf 1932-7-7 3847 Orange Bryant Ranch, Bixby Ave., field 100 ft. N. of Rd. 7/10 mi. W. of Hansen Rd; 100 ft. N. & 2/10 mi. W. of S.E. corner of N.E.40 of N.W.160 of Sect. 34. T4S R11W. 7 Comment
  CLARK-A1528-930  Setaria geniculata Patricia A. Andrews 1975-6-26 5917 Orange Capistrano Bay Beach 9 Comment
  IRVC21695  Setaria lutescens Fred M. Roberts 1984-8-6 1366 Orange UC Irvine, along Adobe Circle Road, 0.9km ENE campus center; 2.3km W French Hill, Irvine 30 Comment
  CAS-BOT-BC243590  Setaria parviflora Ira L. Wiggins 1965-9-26 20260 Orange Roadside at west end of Orangethorpe Estates subdivision near Atwood. Comment
  CAS-BOT-BC243593  Setaria parviflora Miss. H. D. Geis 1902-5-1 s.n. Orange Santa Ana 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
  RSA6048  Setaria parviflora C. B. Wolf 1932-6-13 3725 Orange Fullerton, Rose Drive 53 Comment
  UCR236682  Setaria viridis Fred M. Roberts, Sandra L. Leatherman 2008-9-17 7104 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
  RSA699854  Sherardia arvensis L. C. Hull 1934-4-3 s.n. Orange Yard in S.A. Comment
  RSA789226  Sidalcea malviflora Naomi S. Fraga 2009-5-11 2715 Orange San Juan loop trail, Cleveland National Forest just west of Sugarloaf Spur Trail. 912 Comment
  UC1013072  Sidalcea neomexicana C. L. Hitchcock 1952-5-30 19547 Orange about 11 mi e Long Beach (about 100 yards n of Katella Ave to w of Hanson St.); e of Long Beach Comment
  CAS-BOT-BC205741  Sidalcea neomexicana subsp. thurberi I. Johnston 1917-5-30 1127 Orange Chino Creek south of Ontario 152 Comment
  CAS-BOT-BC205742  Sidalcea neomexicana subsp. thurberi LeRoy Abrams 1903-4-17 3257 -a Orange Between Tustin and Myford Comment
  POM156679  Silene antirrhina L. R. Abrams 1903-4-18 3272 Orange Trabuco arroyo, near San Juan Capistrano. Comment
  RSA763518  Silene californica Doris Bowers 1965-5-10 167 Orange Near California State Forestry Office, Orange 152 Comment
  UCR275222  Silene coniflora A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35312 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along fire line/bulldozer cut, c. 1.5 mi. east of Walnut Cyn Reservoir 346 Comment
  RSA184079  Silene gallica I. L. Wiggins 1966-5-1 20573 Orange Closely grazed field along south side of Brea Olinda blvd, near Carolina Ave. Comment
  RSA0013912  Silene laciniata Fred M. Roberts 2012-5-10 7584 Orange San Joaquin Hills: Buck Gully, south fork, north slope of Pelican Hill, along Pelican Hills Dr., 0.3 km N summit Pelican Hill. 189 Comment
  UCR16182  Silene laciniata Kenneth Hibberd 1966-5-8 660508- 2 Orange Santa Ana Mountains, Modjeska Canyon, 2 mi. north of the El Toro Road [S18] junction 396 Comment
  IRVC21393  Silene laciniata subsp. major A. S. Boughey 1968-7-9 413 Orange Santa Ana mtns: upper Santiago Canyon. Peninsular Ranges Comment
  POM339144  Silene laciniata subsp. major F. R. Fosberg 1930-6-15 52854 Orange Santiago Canyon above Modjakas Home, Santa Ana Mts. Comment
  RSA175135  Silene laciniata subsp. major R. F. Thorne 1963-7-26 32842 Orange Tin Mine Canyon above Beek s Spring, Trabuco District, Santa Ana Mountains, Cleveland National Forest. 762 Comment
  RSA438888  Silene laciniata subsp. major M. B. Dunkle 1933-5-30 3375 Orange Santa Ana Canyon. Comment
  UCR150906  Silene verecunda subsp. platyota Valerie Soza, LeRoy Gross 1999-6-10 514 Orange Santa Ana Mountains, Southwestern extension of Modjeska Peak, off dirt road to summit, off Main Divide Road 1524 Comment
  RSA4791  Sinapis arvensis James Snow s.n. Orange Plants of the Bryant Ranch, near Long Beach. Station # 3, Plant #5. Comment
  IRVC1172  Sisymbrium irio H. Ellis 1965-3-7 Orange Corona del Mar. Newport Beach Comment
  RSA653180  Sisymbrium irio David Barrios 1991-5-8 37 Orange 1500 ft. Northwest of Fairmont Ave and Quail cir. 365 Comment
  RSA366971  Sisyrinchium bellum M. B. Dunkle 1938-3-26 5232 Orange San Juan Canyon 30 Comment
  UCR228785  Sisyrinchium bellum Dick Newell, Don Millar 2011-5-10 154 Orange Peninsular Range; Santa Ana Mtns., above east side of Fremont Canyon on service road just below Lakeview Rd. 455 Comment
  HSC13908  Sisyrinchium bellum J. J. Wagoner 1965-4-11 19 Orange 4 mi. N of Modjeska Canyon near Irvine Lake along the Irvine road 152 Comment
  IRVC27502  Solanum americanum Mark A. Elvin 2004-5-2 3415 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7km (air) NNW UC Irvine campus center. Southern Coastal 3 Comment
  RSA715704  Solanum americanum Fred M. Roberts, Robert L. Allen 2005-10-15 6315 Orange San Juan Capistrano: San Juan Creek wash, east of La Novia Road bridge, 1.4km E Mission San Juan Capistrano, 27 Comment
  RSA743381  Solanum americanum Fred M. Roberts 2008-5-27 7000 Orange Dana Point: Dana Point Headlands, CNLM Preserve near NE Gate, 0.5km W Marine Institute (Dana Point Harbor). 75 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
  RSA263702  Solanum douglasii E. W. Lathrop 1974-6-27 7414 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  RSA422439  Solanum douglasii M. B. Dunkle 1933-3-5 3093 Orange San Juan Canyon 305 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
  UCR224154  Solanum douglasii Fred M. Roberts 2008-5-27 7001 Orange South Coast, Dana Point Headlands, CNLM Preserve, along north slopes above Dana Strand Beach, 0.8 km west norhwest of Marine Institute, Dana Point Harbor 75 Comment
  UCR66993  Solanum douglasii A. C. Sanders 1990-10-6 10198 Orange Newport Bay, North Star County Beach Area on the SW end of the Bay, c. 2 km inland of Hwy 1. 3 Comment
  UCR136650  Solanum nigrum F. W. Peirson 1924-2-9 4523 Orange South Coast, between Wintersburg and the sea 9 Comment
  NY820829  Solanum rostratum E. Johnson 1946-8-22 11531 Orange Rancho Santa Ana, Santa Ana River Canyon 122 Comment
  CAS-BOT-BC156709  Solanum umbelliferum P. A. Munz; L. T. Street; Williams 1919-5-3 2650 Orange Santa Ana River [Canon] Canyon 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
  RSA427386  Solanum umbelliferum A. M. Johnson 1934-4-15 4401 Orange Carmen's Laguna Beach. Comment
  RSA598959  Solanum umbelliferum Scott D. White 1997-3-28 4831 Orange Above Modjeska Canyon, proposed water tank site. 425 Comment
  UC1125059  Solanum umbelliferum A. Lewis 1934-2-1 266 Orange Santa Ana Canyon 152 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
  IRVC26673  Solanum xanti Mark A. Elvin 2004-4-4 3233 Orange UCI Arboretum Southern Coastal 15 Comment
  POM50555  Solidago californica L. R. Abrams 1901-6-16 1851 Orange Trabuco Canyon Comment
  UCR231350  Solidago californica A. C. Sanders, Kent Beaman 2011-9-27 39899 Orange Peninsular Range; Santa Ana Mtns., Maple Springs Truck Trail above Silverado, at major (dry) stream crossing, 3.95 km NNW (347 deg. ) of Santiago Peak 903 Comment
  UC537016  Solidago confinis L. M. Booth 1932-12-26 1383 Orange Newport Lagoon Comment
  SD239624  Solidago velutina subsp. californica A. C. Sanders, T. B. Salvato, Kent Beauman 2011-11-3 39940 Orange Peninsular Range; Santa Ana Mountains: near Pleasants Peak along the Main Divide Truck Trail (Corona South 7.5'Q) 1143 Comment
  RSA798089  Sonchus asper R. F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49582 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74) Comment
  UCR191214  Sonchus asper A. C. Sanders 2008-4-29 35146 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, western end of Loma Ridge on road to sheriff's training facility, c. 1.5 mi. SW of Santiago Reservoir 335 Comment
  IRVC9106  Sonchus oleraceus B. Gittins 1963-3-22 70 Orange Orange Coast College Campus. Costa Mesa Comment
  IRVC923  Sonchus oleraceus B. Mawdsley 1965-3-30 Orange east bluff at Mar Vista. Newport Beach Comment
  UCR239617  Sonchus oleraceus Fred M. Roberts 2012-4-27 7541 Orange Lomas de Santiago, Loma Ridge, west of SR 241, tributary to 'Las Flores' Canyon, near East Loma Ridge Road, 1.6 km southwest Irvine Lake Park Campground and 1.2 km east-southeast of Orange County Emergency Operations Center, Hill 1311 308 Comment
  UCSB48372  Sonchus oleraceus Roberts, Jr., Fred 1982-5-22 Orange Dana Point: jct. of Stone Hill Dr. & Selva Rd.; 1.0 km ESE Dana Hills High School; 1.7 km SW Marco Forster Junior High School 40 Comment
  SEINET998621  Sorghum bicolor R. E. Riefner Jr. 2005-1 05 -710 Orange South Coast: Irvine, Irvine Blvd. at The Groves RD. (Tustin 7.5' Q) 84 Comment
  CAS-BOT-BC235344  Sorghum halepense Ira L. Wiggins 1965-9-26 20257 Orange About 1.5 mi. above mouth of Carbon Canyon Comment
  IRVC15381  Sorghum halepense J. B. Anderson 1966-5-2 634 Orange MacArthur Blvd. near the Newport Freeway. southern coastal Comment
  IRVC1832  Sorghum halepense J. B. Anderson 1966-5-2 634 Orange MacArthur Blvd. near the Newport Freeway. southern coastal Comment
  JEPS73760  Sorghum halepense L. M. Booth 1932-7-18 1265 Orange Newport Bay, Costa Mesa Comment
  CAS-BOT-BC235381  Spartina foliosa Peter H. Raven 1957-9-28 11379 Orange North limits of Surfside Comment
  CAS-BOT-BC235382  Spartina foliosa S. B. Parish; W. F. Parish 1882-10-1 1602 Orange Newport Bay Comment
  IRVC29761  Spartina foliosa Barry S. Nerhus, Mark A. Elvin 2006-11-4 14 Orange Huntington Beach, Bolsa Chica Wetlands, SW portion of Reserve beside Pacific Coast Highway. Southern Coastal 0 Comment
  POM186307  Spartina foliosa Joseph A. Ewan 1932-7-28 7709 Orange East end of Newport Bay Comment
  RSA582098  Spartina foliosa Joseph A. Ewan 1932-7-28 7709 Orange East end of Newport Bay Comment
  SD80955  Spartina foliosa James Henrickson 1970-7-24 5024 Orange 2I(c) miles NW of Huntington Beach along south channel of Inner Bolsa bay, adjacent to Pacific Coast Hy. in Bolsa Chica Salt Marsh Comment
  RSA734634  Spartium junceum A. C. Sanders, T. B. Salvato 2008-5-13 35365 Orange Lomas de Santiago, Santiago Canyon above (S of) mouth of Hangman Tree Canyon, just below Modjeska Canyon confluence 366 Comment
  UCR107849  Spergula arvensis Scott D. White, B. Leatherman 1998-1-26 6065 Orange Irvine, Univ. of Calif. Irvine Campus: Site of proposed Research Park. SW of main campus circle, c. halfway between Berkeley Avenue and new freeway (Bonita Cyn.) 37 Comment
  UCSB48380  Spergula arvensis Roberts, Fred 1982-5-22 Orange Dana Point: jct. of Stone Hill Dr. & Selva Rd.; 1.0 km ESE Dana Hills High School; 1.7 km SW Marco Forster Junior High School 40 Comment
  RSA0097075  Spergularia Scott D. White 1998-3-24 6228 Orange University of California, Irvine Campus: Site of proposed Research Park, Southwest of main campus circle, ca. halfway between Beerkeley Avenue and new freeway (Bonita Canyon). 37 Comment
  SEINET3155830  Spergularia macrotheca L. Abrams 1903-4-17 3258 Orange between Tustin and Myford Comment
  UC537160  Spergularia macrotheca Lawrence M. Booth 1932-5-19 1062 Orange Newport Bay Comment
  RSA0097840  Spergularia macrotheca Norland 1929-4-7 s.n. Orange Los Alimitos. Comment
  IRVC24998  Spergularia marina Fred M. Roberts, H. Camp & R. Fisher 1986-6-20 3022 Orange San Joaquin Freshwater Marsh, near Campus Dr., 1.7km NNW UC Irvine campus center, Irvine 2 Comment
  RSA0098516  Spergularia marina Elroy Robinson 1936-6-26 s.n. Orange El Torro, along Santa Fe Railway. Comment
  RSA0098517  Spergularia marina P. A. Munz, L. T. Street, G. Williams 1919-4-4 2682 Orange Laguna Canon. Comment
  RSA0098538  Spergularia marina L. M. Booth 1932-5-12 1010 Orange Newport Beach. Comment
  RSA0098133  Spergularia rubra A. C. Sanders, T. B. Salvato 2008-5-13 35347 Orange Lomas de Lomas de Santiago, Santiago Canyon at mouth of Hangman Tree Canyon and lower Hangman Tree Cyn, c. 1/2 mile below Modjeska Canyon confluence. 366 Comment
  UCR102029  Spergularia villosa B. G. Pitzer 1997-3-25 3010 Orange San Joaquin Hills, Crystal Cove State Park, Pelican Point Area, grassland between Pacific Coast Hwy and the bike trail 30 Comment
  IRVC26698  Spiloxene serrata Mark A. Elvin, J. Liou, J. Carpenter, J. Nguyen 2004-3-8 3175 Orange UCI Arboretum Southern Coastal 15 Comment
  JEPS62963  Stachys ajugoides Alice King May, 1908 Orange near Tustin Comment
  RSA680  Stachys ajugoides J. T. Howell 1927-6-30 246 Orange Bryant Ranch near Long Beach. 15 Comment
  UCR144124  Stachys rigida Scott D. White, Amanda Duchardt 2003-4-10 9001 Orange Santa Ana Mountians Foothills, Ridges and E-facing canyons above Trampas Canyon 152 Comment
  POM18081  Stachys rigida subsp. quercetorum P. A. Munz 1923-9-7 7756 Orange From Holy Jim Canyon to Santiago Peak. 1311 Comment
  RSA679  Stachys rigida subsp. quercetorum J. T. Howell 1928-4-14 910 Orange Aliso Canyon, Rancho Santa Ana. 229 Comment
  RSA82576  Stachys rigida subsp. quercetorum F. W. Peirson 1923-9-7 4039 Orange Santa Ana Mountains; Trail Trabuco Canyon to Santago Peak. 1220 Comment
  SD245402  Stachys rigida subsp. quercetorum Robert Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49583 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74). Comment
  SEINET9330188  Stachys rigida var. quercetorum Unknown 2011-9-27 39913 Orange Orange Co., CA Comment
  SD248452  Stachys stebbinsii A. C. Sanders, Kent Beaman 2011-9-27 39902 Orange Peninsular Range; Santa Ana Mountains: Maple Springs Truck Trail above Silverado, at major (dry) stream crossing, 3.95 km NNW (347a^z) of Santiago Peak (Santiago Peak 7.5'Q) 903 Comment
  RSA542590  Stebbinsoseris heterocarpa Fred M. Roberts, Karlin G. Marsh 1988-4-25 3934 Orange San Joaquin Hills: East flank Pelican Hill, 0.9 kilometer SE summit. 120 Comment
  RSA0119681  Stellaria media Fred M. Roberts 2015-3-10 7924 Orange San Joaquin Hills: Niguel Hill, on ridge above Aliso Canyon ear end of Ceanothus Drive (Hangover House property), 0.4 km WNW summit Aliso Peak. 122 Comment
  RSA627784  Stellaria media Scott D. White 1998-4-9 6266 Orange University of Calif. Irvine Campus; Drainage channel west of Medical Center, west of main campus circle. 15 Comment
  RSA704931  Stellaria media Fred M. Roberts, David E. Bramlet 2004-4-21 6040 Orange Rancho Mission Viejo: Donna O Neill Land Conservancy, Flagpole Meadow in upper Shady Canyon, 1.63 km NW Sycamore Gate, 1.18 km W of Cristianitos Road. 168 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
  UCR207544  Stenotaphrum secundatum O. F. Clarke, Roger E. Reinke 2004-11-14 s.n. Orange South Coast, Newport Back Bay 3 Comment
  UCR67009  Stenotaphrum secundatum A. C. Sanders 1990-10-6 10191 Orange Newport Bay, North Star County Beach Area on the SW end of the Bay, c. 2 km inland of Hwy 1. 3 Comment
  RSA749688  Stephanomeria A. C. Sanders, Fred M. Roberts 2008-7-16 35827 Orange Lomas de Santiago, along road in lower Limestone Canyon, near junction with Harding Truck Trail 290 Comment
  UCR193852  Stephanomeria A. C. Sanders, Fred M. Roberts 2008-7-16 35827 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, along road in lower Limestone Canyon, near junction with Harding Truck Trail 290 Comment
  UCR240091  Stephanomeria cichoriacea Dick Newell, Judy Booth 2012-10-14 306 Orange Peninsular Range; Santa Ana Mtns., Trabuco Canyon, 2 miles north of Live Oak Cyn. Rd. 457 Comment
  SD240903  Stephanomeria diegensis A. C. Sanders, Fred M. Roberts 2008-8-7 35995 Orange Peninsular Range: Santa Ana Mountains: lower Weir Canyon, at narrow gorge ca. 0.6 mile above mouth of canyon at Irvine Ranch gate (Orange/Blac Star Canyon 7.5'Q) 188 Comment
  UCR222876  Stephanomeria diegensis T. B. Salvato 2010-10-27 5129 Orange South Coast, Dana Point Headlands, Hilltop Park, north of Scenic Dr. and west of Green Lantern St., overlooking Dana Point Harbor 84 Comment
  UC1394144  Stephanomeria diegensis L. D. Gottlieb 1968-8-14 6860 Orange immediately w Lower San Juan Campground (on Route 74) 411 Comment
  POM201781  Stephanomeria exigua subsp. coronaria L. M. Booth 1932-7-27 1325 Orange Corona del Mar, Newport Beach, Bluff Ravine Comment
  SD181787  Stipa coronata Valerie Soza, LeRoy Gross 1999-6-7 491 Orange Santa Ana Mountains, west side of Modjeska Peak, along Main Divide Road. Open, west-facing slope, on upper side of dirt road. 1448 Comment
  UCR191359  Stipa coronata A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34645 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
  UCR281508  Stipa lepida Mitch Provance, Jeremiah George 2017-3-20 317- 102 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
  SD144498  Stipa miliacea Scott D. White 1997-3-28 4826 Orange Santa Ana Mtns: Above Modjeska Canyon: along Harding Cyn Truck Trail, near Modjeska Cyn Rd and wash crossing. 424 Comment
  RSA6315  Stuckenia pectinata L. T. Street, Williams 1919-5-4 2690 Orange Laguna Lakes. [now Big Laguna Lake, San Diego Co.] Comment
  RSA678496  Stylocline gnaphaloides Fred M. Roberts, Robert L. Allen, Carol Roberts 2003-5-11 5846 Orange Dana Point Headlands: 0.8km SSW Richard Henry Dana School north of Marguerita Drive 76 Comment
  RSA737541  Stylocline gnaphaloides Fred M. Roberts 2008-3-12 6720 Orange Dana Point: Dana Point Headlands CNLM Preserve, western side, c.a. 0.8 km W Marine Institute (Dana Point Harbor). 50 Comment
  POM19056  Styrax redivivus F. W. Peirson 1923-5-5 3493 Orange Trabuco Canyon. 640 Comment
  SD127487  Styrax redivivus Reid Moran, Jack Reveal and Bob Smart 1975-7-18 22599 Orange North slope of ridge, upper Trabuco Canyon, Santa Ana Mts. 900 Comment
  RSA438605  Suaeda calceoliformis J. Ewan 1931-7-31 4763 Orange Smeltzer Comment
  UC116539  Suaeda calceoliformis S. B. and W. F. Parish Oct 1882 1598 Orange Santa Ana Comment
  POM259534  Suaeda calceoliformis A. C. Keller 1938-7-29 s.n. Orange At entrance to Lido Isle, Newport Comment
  CAS-BOT-BC110389  Suaeda esteroa Peter H. Raven 1957-9-28 11383 Orange At north limits of Surfside. Comment
  RSA678455  Suaeda esteroa Valerie Soza, Kevin B. Clark, LeRoy Gross, Will Miller, Fred Roberts, Gary D. Wallace 2001-4-4 1108 Orange Seal Beach National Wildlife Refuge: Seal Beach U. S. Naval Weapons Station, across access road from Nature Center (Bldg 226). 3 Comment
  UC536968  Suaeda esteroa Lawrence M. Booth 1932-12-13 1373 Orange Newport Bay Comment
  UCR211858  Suaeda esteroa Valerie Soza, Kevin Clark, LeRoy Gross, Will Miller, Fred M. Roberts, G. D. Wallace 2001-4-4 1108 Orange South Coast, Seal Beach National Wildlife Refuge, Seal Beach U. S. Naval Weapons Station, across access road from Nature Center (Bldg 226) 3 Comment
  UCR66367  Suaeda esteroa A. C. Sanders 1990-10-6 10204 Orange Newport Bay, North Star County Beach Area on the SW end of the Bay, c. 2 km inland of Hwy 1. 3 Comment
  POM202054  Suaeda moquinii L. M. Booth 1932-7-4 1247 Orange Newport Lagoon 3 Comment
  RSA438628  Suaeda moquinii Albert J. Perkins 1912-10-15 s.n. Orange Field near Newport Road, Santa Ana Comment
  CAS-BOT-BC110409  Suaeda taxifolia Allan C. Keller 1937-11-26 s.n. Orange Santa Ana River Bridge west of Newport Beach on U.S. Highway Alternate 101. Comment
  CAS-BOT-BC110410  Suaeda taxifolia L. R. Abrams 1917-6-25 6557 Orange Balboa. Comment
  POM259490  Suaeda taxifolia A. C. Keller 1937-11-26 s.n. Orange Loc. Alt. 20 to 40 ft. on cliffs, Doheny Palisades, Highway 101 Comment
  POM694  Suaeda taxifolia D. L. Crawford s.n. Orange Laguna Beach bluffs Comment
  RSA609759  Suaeda taxifolia L. C. Wheeler 1946-9-28 6383 Orange Newport Bay. Comment
  UCR224045  Suaeda taxifolia Justin M. Wood 2009-12-1 1391 Orange South Coast, Santa Ana River, marsh just upstream of Pacific Coast Highway 2 Comment
  UCSB48081  Suaeda taxifolia Roberts, Fred 1981-11-15 Orange Newport Beach: Upper Newport Back Bay; Bayside Dr.; 0.2 km. N central parking area 2 Comment
  RSA0059069  Suaeda taxifolia CNPS Accuracy Assessment Team 2014-7-9 9560 Orange Talbert Nature Preserve. Comment
  RSA0070790  Suaeda taxifolia CNPS Accuracy Assessment Team 2014-7-8 9567 .2 Orange Upper Newport Bay Nature Reserve. Comment
  IRVC19706  Symphoricarpos mollis Karlin G. Marsh 1983-7-5 Orange Bonito Canyon Reservoir; open grassy field. Irvine Comment
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Oct 21 2013
  POM290485  Symphoricarpos mollis Lyman Benson 1947-4-27 12342 Orange Carbon Canyon. Chino-Puente Hills; Pacific Slope Drainage Area. 244 Comment
  UCR193767  Symphoricarpos mollis A. C. Sanders, Fred M. Roberts 2008-7-3 35671 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor 415 Comment
  RSA663168  Symphoricarpos mollis R. E. Riefner 2000-8-8 20 -722 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
  UC729508  Symphyotrichum subulatum Carl B. Wolf 1932-9-16 4114 Orange 500 ft e of San Gabriel River (bordering Los Alamitos Bay); , Los Alamitos Bay 1 Comment
  RSA0014447  Tamarix chinensis Justin M. Wood 2010-3-4 1423 Orange Santa Ana Canyon: Santa Ana River floodplain, 0.25 mi north of Coal Canyon wildlife corridor, west of Green River Golf Course on bluff south of the river. 122 Comment
  RSA731912  Tamarix ramosissima Fred M. Roberts, Sandra Leatherman 2007-11-27 6667 Orange Anaheim: Santa Ana River, Santa Ana Canyon, just west of Horseshoe Bend on S side of E La Palma Ave., about 0.3km E Weir Cyn. Rd. bridge. 100 Comment
  RSA49094  Tauschia arguta P. A. Munz 1949-5-26 13376 Orange Head of Sierra [Freemont] Canyon, Santa Ana Mountains. 732 Comment