Search Results — 2000 specimen records retrieved (1622 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
  POM201769  Abronia maritima L. M. Booth 1932-6-15 1189 Orange S.E. of Huntington Beach. Comment
Read comments
Feb 11 2015
  RSA585489  Abronia maritima R. E. Riefner Jr. 1994-5-22 94 -380 Orange San Mateo Point, W of RR tracks, just N of Orange Co. line marker. Comment
  RSA678453  Abronia maritima Valerie L. Soza, K. Clark, LeRoy Gross, Will Miller, Fred M. Roberts, Gary D. Wallace 2001-4-4 1116 Orange Anaheim Bay: Seal Beach U. S. Naval Weapons Station, southwestern edge of Seal Beach National Wildlife Refuge. 3 Comment
  CAS-BOT-BC229410  Abronia umbellata L. R. Abrams 1917-6-23 6573 Orange Balboa Comment
  HSC16138  Abronia umbellata B. Francis 1964-5-2 41 Orange Newport Beach Comment
  CAS-BOT-BC229299  Abronia villosa C. B. Wolf 1931-7-1 2259 Orange Atwood, lower end of Santa Ana Canyon 76 Comment
  SEINET893740  Abronia villosa P. C. Everett 1935-1 7260 Orange Lower Sonoran. 8/10 miles east of Atwood, south of Railroad tracks. 107 Comment
  RSA3226  Abronia villosa var. aurita Carl B. Wolf 1931-7-1 2259 Orange Atwood, lower end of Santa Ana Canyon. 107 Comment
  RSA69967  Abronia villosa var. aurita F. W. Peirson 1924-8-29 5060 Orange Santa Ana Comment
  RSA0126616  Acacia Fred M. Roberts 2012-4-27 7497 Orange San Joaquin Hills: Buck Gully, W of intersection of Ridge Park Road and Newport Coast Drive, 1.5 km W Signal Peak. 179 Comment
  CDA23153  Acacia cyclops Mark A. Elvin, D. G. Kelch 2006-12-9 5291 Orange Southern Coastal; Newport Backbay; Big Canyon, lower end. Comment
  SEINET946801  Acacia longifolia R. J. Barr 1964-1 64 -589 Orange Roadside near Capistrano Beach Comment
  RSA639692  Acacia redolens Scott D. White, P. De Vries 1998-12-10 s.n Orange Brea; Oil field south of Tonner Canyon and north of Lambert rd. Comment
  IRVC21628  Acer macrophyllum Fred M. Roberts, K. G. Marsh 1984-4-21 1348 Orange Santa Ana Mountains: Lost Women Canyon, 2.4km WSW Bald Peak; 2.3km SE Bedford Peak. Peninsular Ranges 755 Comment
  RSA16469  Acer macrophyllum Percy C. Everett 1935-6-19 7239 Orange Santa Ana Mts., Trabuco Canyon, 2 6/10 mi. below (W.) summit of truck trail. 915 Comment
  RSA791875  Achnatherum coronatum R. F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49617 Orange Santa Ana Mountains: about 1 mile above San Juan Fire Station Comment
  RSA797665  Achnatherum coronatum R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49769 Orange Santa Ana Mountains: Trabuco Canyon Comment
  UCR258349  Acmispon americanus var. americanus Fred M. Roberts 2014-4-21 7853 Orange South Coast, SAN JOAQUIN HILLS: Laguna Lake 1 (Upper Laguna Lake), south basin 113 Comment
  UCSB47638  Acmispon strigosus Roberts, Jr., Fred 1980-5-3 Orange Main Divide Truck Trail, on east side of road, 0.4 km. W of Trabuco Peak, Santa Ana Mtns. 1341 Comment
  POM201749  Acourtia microcephala L. M. Booth 1932-7-4 1243 Orange Newport Lagoon. Comment
  POM50881  Acourtia microcephala L. R. Abrams 1901-06 1855 Orange Trabuco Canyon Comment
  RSA788092  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
  UC1543097  Acourtia microcephala Donald G. Nelson 1936-6-5 434 Orange hills n Fullerton Comment
  RSA699138  Actaea spicata Unspecified s.n. Orange Brook Bank. Comment
  UCR230219  Adenostoma fasciculatum Dick Newell, Ed Hill 2011-3-29 102 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
  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
  SD247725  Adenostoma fasciculatum R. F. Thorne, C. W. Tilforth, E. W. Lathrop. 1977-4-27 49680 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. 456 Comment
  RSA658199  Adenostoma fasciculatum var. fasciculatum T. A. Daubert 1991-5-19 653 Orange Tucker Wildlife Sanctuary, Modjeska Canyon inside sanctuary. Comment
  UCSB41858  Adenostoma fasciculatum var. fasciculatum Fisher, K. 1970-5-15 Orange Tucker Wildlife Sanctuary, Modjeska Canyon 548 Comment
  UCR228890  Adiantum capillus-veneris Dick Newell, Don Millar 2011-7-19 211 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Dripping Springs 392 Comment
  RSA689447  Adiantum jordanii Scott D. White, Amanda Duchardt 2003-4-10 9009 Orange Ridges & east-facing canyons above Trampas Canyon. 122 Comment
  RSA0008824  Adiantum jordanii J. T. Howell 1927-6-24 197 Orange Aliso Canyon, Rancho Santa Ana. 274 Comment
  IRVC3118  Adiantum raddianum Polly Brecht 1965-5-7 HS 0580 Orange Newport Beach; Cherry Tree Lane. Southern Coastal Comment
  IRVC3119  Adiantum raddianum Don Pfirrmann 1965-4-28 HS 0579 Orange Newport Beach; 252 Mayflower Drive. Southern Coastal Comment
  POM295313  Aesculus californica Lyman Benson 1955-3-19 15406 Orange Flying Cow Ranch, south end of Carbon Canyon (Ed Gaines Ranch) San Jose Hills. 259 Comment
Read comments
Nov 26 2016
  RSA695487  Ageratum houstonianum Ruth Greenwald, Virginia Pritchard 1938-05 s.n. Orange Santa Ana. Comment
  RSA695488  Ageratum houstonianum M. Funakoshi 1941-10-23 s.n. Orange Santa Ana. Comment
  UC1595640  Agoseris grandiflora Steve Boyd and Orlando Mistretta 1991-5-9 6198 Orange Santa Ana Mountains, crest of range at Oak Flat, SE of Sierra Peak, just W of Riverside County line. Comment
  RSA679216  Agoseris grandiflora var. grandiflora Fred M. Roberts 2003-6-17 5917 Orange Just NE of Falcon roup Camp, 2.1km ESE Los Pinos Peak just west of main road. 1009 Comment
  CAS-BOT-BC13322  Agoseris retrorsa L. R. Abrams 1901-6-1 1845 Orange Mount Santiago, near summit Comment
  RSA748255  Agrostis pallens A. C. Sanders, Mitch Provance 2008-5-20 35389 Orange Lomas de Santiago, mouth of Hangman Tree Canyon just above confluence with Santiago Creek Canyon, c. 1/2 mile below Modjeska Canyon confluence 366 Comment
  RSA773555  Agrostis pallens Fred M. Roberts 2008-6-3 7029 Orange Lomas de Santiago: Loma Ridge, East Fork Rattlesnake Canyon, ca. 2.6 km NE of Rattlesnake Reservoir spillway and 2.4 km ENE Bee Peak 235 Comment
  SEINET3916500  Agrostis pallens A. C. Sanders, Fred M. Roberts 2008-7-16 35851 Orange Penninsular Range; Santa Ana Mtns.: Lomas de Santiago, Limestone Canyon.; 0 325 Comment
  UCR193762  Agrostis viridis A. C. Sanders, Fred M. Roberts 2008-7-3 35703 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
  UCR189302  Ailanthus altissima Fred M. Roberts, R. L. Allen 2007-9-28 6599 Orange Foothill Trabuco, Upper Aliso Creek at SE corner of El Toro Road and Valle Vista Way, c. 1.8 km NE Upper Oso Reservoir 308 Comment
  RSA0013973  Allium haematochiton Fred M. Roberts, David E. Bramlet 2008-5-13 6952 Orange Upper Weir Cyn., central fork, 3.5 km NE Roberst Peak 369 Comment
  RSA176731  Allium haematochiton D. E. Breedlove 1962-3-9 1788 Orange 12.3 miles east of San Juan Capistrano on State [Highway] 74 244 Comment
  RSA0063249  Allium marvinii Philip A. Munz 1949-5-26 13373 Orange Head of Sierra [Freemont] Canyon, Santa Ana Mountains. 732 Comment
  RSA562756  Allium praecox Steve Boyd, Timothy S. Ross 1992-5-19 7432 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of the wilderness along Lucan Canyon Trail in Lucas Canyon, just upstream from divide with Aliso Canyon. 366 Comment
  RSA539355  Allophyllum glutinosum Fred M. Roberts, Carol A. Roberts 1988-6-9 4085 Orange Santa Ana Mountains: Modjeska Peak, 0.9km SW summit. 1542 Comment
  RSA7475  Allophyllum glutinosum C. B. Wolf 1933-8-24 5399 Orange Summit of Santiago Peak, Santa Ana Mountains 1731 Comment
  RSA696343  Alnus rhombifolia Minor Warne 1934-02 s.n. Orange Modjeska Canyon Comment
  SEINET10572636  Aloe Charlene A. Bennett 1976-7-21 Bennett 431 Orange Cultivated plants collected in and around the condominium pacific island Estates in laguna hills; some native shrubs, etc. 152 Comment
  RSA597728  Alopecurus saccatus D. E. Bramlet 1995-6-10 2435 Orange Fairview Park, City of Costa Mesa., 37 24 490m N, 4 12 360m E. 43 Comment
  RSA731751  Amaranthus albus Fred M. Roberts 2007-11-9 6653 Orange San Juan Canyon along San Juan Creek, about 0.6 km E San Diego FWY. 24 Comment
  RSA798189  Amaranthus albus R. F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49593 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74) Comment
  UCR193368  Amaranthus albus A. C. Sanders, T. B. Salvato 2008-5-13 35346 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
  UCR44898  Amaranthus albus B. G. Pitzer, L. F. LaPre 1986-10-20 0313 Orange City of Irvine, Drainage channel near intersection of Irvine Blvd. and Sand Canyon Avenue. 91 Comment
  POM121853  Amaranthus albus Marcus E. Jones 1924-8-26 s.n. Orange Newport. Comment
  RSA273  Amaranthus albus J. T. Howell 1927-7-27 497 Orange Near ranch, Rancho Santa Ana 152 Comment
  RSA5812  Amaranthus albus C. B. Wolf 1932-6-28 3770 Orange Bryant Ranch: along western half of north boundary of 40 acre Valencia orange grove at Bryant Ave. and Hansen Road. 9 Comment
  JEPS54303  Amaranthus blitoides Lawrence M. Booth 1932-7-25 1309 Orange Santa Ana river, near coast Santa Ana River Comment
  CLARK-A1528-979  Amaranthus californicus Patricia A. Andrews 1975-6-26 5930 Orange Capistrano Bay Beach 9 Comment
  UCR132517  Amaranthus deflexus A. C. Sanders 1999-10-31 23225 Orange South Coast, Mission San Juan Capistrano, near intersection of Ortega Highway (Hwy 74) and El Camino Real 61 Comment
  UCSB46145  Amaranthus hybridus Roos, Alfred 1937-12-9 Orange West 17th St. in Santa Ana Comment
  UC537271  Amaranthus powellii Lawrence M. Booth 1932-7-21 1295 Orange Anaheim Marsh Comment
  IRVC8605  Amblyopappus pusillus J. B. Anderson 1966-4-16 577 Orange Newport Beach; Corona del Mar; Buck Gully; "Little Corona Beach"; moist canyon bottom with small brooklet near stream. Southern Coastal 0 Comment
  CAS-BOT-BC13607  Ambrosia acanthicarpa Helen D. Geis Spring 1902 534 Orange Sant Ana Comment
  RSA12823  Ambrosia acanthicarpa E. R. Johnson 1934-12-5 6256 Orange Rancho Santa Ana, Santa Ana Canyon. 137 Comment
  UCR186134  Ambrosia acanthicarpa T. B. Salvato, Katie Kurtz 2006-10-15 1916 Orange South Coast, Irvine, San Diego Creek flood control channel, near Michelson Drive and Harvard Avenue 6 Comment
  CAS-BOT-BC13771  Ambrosia chamissonis David D. Keck 1933-9-8 2541 Orange Sunset Beach Comment
  CAS-BOT-BC13773  Ambrosia chamissonis David D. Keck 1933-9-8 2543 Orange Sunset Beach Comment
  JEPS41025  Ambrosia psilostachya W. L. Jepson 1940-10-6 20179 Orange Horseshoe Bend; Santa Ana River Canon 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
  POM47597  Ambrosia psilostachya I. M. Johnston s.n. Orange 3 mi. N of Balboa Comment
  RSA783652  Ambrosia psilostachya J. D. Olmsted 1959-8-26 835 Orange Along road south of mouth of Black Star Canyon north of Rock Crushing Plant; Drainage area: to Santiago Reservoir. 305 Comment
  CDA25799  Ammannia coccinea A. C. Sanders, Fred M. Roberts 2008-9-18 36095 Orange Peninsular Range; Santa Ana Mountains Foothills; Lomas de Santiago, Santiago Creek Canyon c. 0.5-0.8 mile above the highway bridge. Comment
  UCR158026  Ammannia robusta Adrian Wolf 1998-5-15 273 Orange South Coast, Lambert Reservoir, north of El Toro Marine Corps Air Station 134 Comment
  POM201611  Ammi visnaga L. M. Booth 1932-7-18 1268 Orange Santa Ana River, 1 mile from Ocean. Comment
  RSA415297  Amorpha californica C. B. Wolf, E. R. Johnson 1933-11-3 5525 Orange Main Divide Motorway Bedford Peak Firebreak and Silverado Motorway. Comment
  SBBG14802  Amorpha californica P. H. Raven 1962-5-18 17752 Orange Silverado Cyn Truck Trail 7.3 mi above Gate 1280 Comment
  LA204903  Amorpha fruticosa Carl Epling; H. Lewis 1940-4-21 sn Orange 6 mi. E of San Juan Capistrano Comment
  UCR192461  Amsinckia intermedia A. C. Sanders, Fred M. Roberts 2008-3-25 34529 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  UCD119276  Amsinckia intermedia Francia Chisaki 1957-4-3 926 Orange 6 miles S of Irvine, just S of El Toro near top of hill on Highway 101. Comment
  IRVC9355  Amsinckia menziesii var. intermedia B. T. Gittins 1963-4-21 179-A Orange Newport Back Bay. Newport Beach Comment
  UCR4089  Anagallis arvensis Carole Sims 1965-3-28 s.n. Orange South Coastal Plains, Salt Creek Road off Pacific Coast Highway, between South Laguna and Dana Point 18 Comment
  RSA232211  Anemopsis californica James Henrickson 1970-7-24 4995 Orange 2 miles NNW or Huntington Beach around small freshwater industrial pond at eastern margin of Bolsa Chica Salt Marsh along Huntington Beach Mesa. 0 Comment
  RSA247341  Anemopsis californica G. D. Wallace 1966-4-16 472 Orange Ca. 10 mi. N of Camp Pendleton along Hwy 5. Comment
  UCSB48013  Anthemis cotula Roberts, Fred 1980-6-30 Orange Irvine; near east end of Veeh Reservoir at corner of Ridgeroute and Peralta Rd. 92 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
  UCR192216  Anthriscus caucalis A. C. Sanders, Fred M. Roberts 2008-5-6 35255 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, slope SE of road junction along ridge road, near head of Agua Chinon Canyon, 2.4 miles north of El Toro 470 Comment
  UCR190998  Antirrhinum coulterianum A. C. Sanders, Fred M. Roberts 2008-4-22 35050 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, slopes of south end of Loma Ridge and at head of Limestone Canyon, c. 2.5 miles SW of Silverado 488 Comment
  UCR192725  Antirrhinum coulterianum A. C. Sanders, Fred M. Roberts 2008-5-6 35225 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hicks Canyon, just above tollway (Hwy 241) crossing on Irvine Haul Rd., near debris basin 216 Comment
  UCR239651  Antirrhinum coulterianum Fred M. Roberts, Kay Stewart, Pamela Pallete, Bob Greenberg 2012-5-6 7547 Orange Santa Ana Mountains, Hot Springs Canyon, along San Juan Trail, 1.1 km north-northeast of San Juan Fire Station 351 Comment
  RSA698987  Antirrhinum majus Snow 1929-03 s.n. Orange Santa Ana. Comment
  UCR203901  Antirrhinum multiflorum R. E. Riefner Jr. 2008-5-15 08- 83 Orange Irvine Ranch Reserve, north Irvine Ranch, east fork of upper Fremont Canyon along Black Star SCE Road 610 Comment
Read comments
Dec 14 2012
  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
  RSA698988  Antirrhinum strictum Unspecified 1935-04 s.n. Orange Silverado Canyon. Comment
  RSA737480  Aphanisma blitoides Fred M. Roberts 2008-3-12 6736 Orange Dana Point: Dana Point Headlands CNLM Preserve, western side, c.a. 0.8 km W Marine Institute (Dana Point Harbor). 50 Comment
  UC1607981  Apiastrum angustifolium Donald G. Nelson 1935-4-6 228 Orange just s of boundary of Cleveland National Forest (e of San Juan Capistrano, northward from the summer ranger station at main Hwy up San Juan Canyon); San Juan Canyon Comment
  UC536945  Apiastrum angustifolium Lawrence M. Booth 1932-5-12 1027 Orange Newport Bay Comment
  IRVC26732  Aquilegia formosa Mark A. Elvin 2004-6-18 3526 Orange UCI Arboretum Southern Coastal 15 Comment
  RSA38679  Aquilegia formosa P. A. Munz 1946-10-26 11619 Orange Botanic Garden. Comment
  CAS-BOT-BC171630  Aralia californica James R. Shevock 1976-10-28 5358 Orange Along Silverado Canyon Road int he vicinity of Bigcone Spring, Santa Ana Mts., Cleveland National Forest 914 Comment
  IRVC22985  Araujia sericifera Karlin G. Marsh 1986-9-12 Orange Yorba Linda; Santa Ana Canyon, Santa Ana River, north side, Featherly Park south of Esperanza Rd. Santa Ana Mountains 105 Comment
  UC1120811  Arbutus menziesii A. Lewis May 1934 427 Orange Cleveland National Forest, Trabuco Canyon Trabuco Canyon; Cleveland National Forest, Trabuco Canyon 1158 Comment
  SD255137  Arbutus menziesii R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49826 Orange Santa Ana Mountains: Trabuco Canyon. Comment
  CAS-BOT-BC23105  Arctostaphylos glandulosa subsp. glandulosa A. M. White 1974-6-1 1358 Orange Ca. 20 mi. E. of Santa Ana, N. of Silverado Chanyon 1005 Comment
  CAS-BOT-BC23106  Arctostaphylos glandulosa subsp. glandulosa Robert F. Thorne; J. Olmsted 1963-7-26 32827 Orange Santa Ana Mts., Cleveland National Forest, Trabugo District. 1188 Comment
  RSA629320  Arctostaphylos glandulosa subsp. glandulosa Jon E. Keeley 1992-6-12 15523 Orange North of El Cariso on road to Los Pinos Pk, 3.8 km north of Hwy 74. 1000 Comment
  RSA629325  Arctostaphylos glandulosa subsp. glandulosa Jon E. Keeley 1992-6-12 15512 Orange Rd. 6S06, 1km northeast of Blue Jay Campground, north of El Cariso (Hwy 74) 1050 Comment
  RSA787500  Arctostaphylos glandulosa subsp. glandulosa R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49708 Orange Northern Santa Ana Mountains: Sierra Peak 900 Comment
  RSA797659  Arctostaphylos glandulosa subsp. glandulosa R. F. Thorne, E. W. Lathrop 1977-5-18 49762 Orange Santa Ana Mountains: at head of Trabuco Canyon Trail Comment
  UC1120218  Arctostaphylos glandulosa subsp. zacaensis A. Lewis May 1934 415 Orange Trabuco Canyon Cleveland National Forest, Elsinore Quadrangle Comment
  SEINET10449249  Arctostaphylos otayensis James S. Miller 2001-12-15 Miller 10648 Orange Rancho Santa Ana Botanic Garden, Santa Ana, CA. Comment
Read comments
Jan 17 2020
  UC718382 Image available Arctostaphylos pringlei subsp. drupacea P. C. Everett 1935-6-19 7232 Orange Main Divide Motorway 7 mi from summit of Santiago Peak (se); Santa Ana Mts. 1280 Comment
  RSA0054828  Arenaria douglasii Keith E. Hoffmaster 1936-5-3 723 Orange Santa Ana Mts. (Santiago Peak). Comment
  RSA0004622  Argemone munita subsp. robusta Carl B. Wolf 1933-8-24 5403 Orange open areas along the firebreak at the Summit of Santiago Peak. 1732 Comment
  RSA0013974  Aristida adscensionis Fred M. Roberts, David E. Bramlet 2008-5-13 6953 Orange Upper Weir Cyn., central fork, 3.5 km NE Roberst Peak 369 Comment
  RSA542513  Aristida purpurea var. parishii Fred M. Roberts 1987-3-31 3314 Orange Lomas de Santiago: Lomas [Loma] Ridge, Upper Serrano Canyon, east fork, reservoir, 2.2 kilometers SE Bolero Lookout, UTM 37 28 500m N, 4 41 200m E. 406 Comment
  RSA542562  Aristida purpurea var. parishii Fred M. Roberts 1988-2-18 3796 Orange Lomas de Santiago: lateral to Santiago Wash, 1.4 kilometers NW Santiago Dam spillway., UTM 37 39 400m N, 4 31 700m E. 195 Comment
  RSA660594  Aristida purpurea var. parishii R. E. Riefner 2000-7-8 20 -629 Orange NCCP North Ranch Policy Plan Area. On ridgeline overlooking upper W fork of Fremont Canyon; located E of Main Divide Road and SE from Windy Ridge cypress forest. 438 Comment
  RSA663207  Aristida purpurea var. parishii R. E. Riefner 2000-8-3 20 -709 Orange NCCP North Ranch Policy Plan Area. E of Main Divide Road and Windy Ridge. 534 Comment
  UCR130496  Aristida purpurea var. parishii R. E. Riefner Jr. 2000-8-3 00- 7012 Orange Santa Ana Mountains, North Ranch Policy Plan Area, east of Main Divide Road and Windy Ridge 535 Comment
  RSA542372  Aristida ternipes var. hamulosa Fred M. Roberts, K. Keane 1988-5-25 3989 Orange Rancho Mission Veijo: Lower Canada Chiquita, 2.0 kilometers SSE Medium Rancho Survey Marker., UTM 3710600m N, 443550m E. 91 Comment
  POM257051  Arnica discoidea W. Pequegnat 1940-4-13 s.n. Orange Modjeska Springs, Santa Ana Mts. 1311 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
  RSA696761  Artemisia biennis J. Russell Bruff 1930-10-26 s.n. Orange Santa Ana River bed. Comment
  UC537020  Artemisia biennis Lawrence M. Booth 1932-7-4 1250 Orange Newport Lagoon Comment
  POM201782  Artemisia californica L. M. Booth 1932-7-27 1327 Orange Corona del Mar, Newport Bay. Comment
  RSA719416  Artemisia californica Fred M. Roberts, Lee Ann Caranza 2006-10-25 6453 Orange Dana Point Headlands south of Margarite Drive, 0.6km W Marine Institute and 1km SW Cook Sch. 58 Comment
  SD144070  Artemisia californica Scott D. White 1996-12-20 4634 Orange Santa Ana Mts., above Modjeska Canyon 424 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
  UCSB52400  Artemisia californica Roberts, Fred 1982-9-15 Orange Santa Ana Mtns.; San Juan Trail, 1.1 km. SE Blue Jay Campground; 2.5 km. SSE Los Pinos Peak 997 Comment
Read comments
Jan 25 2020
  RSA731954  Artemisia dracunculoides Fred M. Roberts 2007-12-12 6704 Orange Santa Ana Canyon: Santa Ana River, south of Green River Golf course on south side of river, 0.4km E Coal Cyn. Rd. and 0.7km W Riverside Co. line. 129 Comment
  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
  UCR242921  Artemisia dracunculus Dick Newell, Don Millar 2013-6-25 335 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Limestone Canyon, 2.25 miles southeast of Augustine Staging Area 339 Comment
  RSA784185  Artemisia dracunculus J. D. Olmsted 1959-8-26 837 Orange Along road south of mouth of Black Star Canyon north of Rock Crushing plant 305 Comment
  RSA784180  Artemisia vulgaris J. D. Olmsted 1959-8-26 836 Orange Drainage area to Santiago Reservoir. Mouth of Black Star Canyon east of Santiago Reservoir. 320 Comment
  RSA0059638  Arthrocnemum subterminale Valerie Soza, Kevin B. Clark, LeRoy Gross, Will Miller, Fred Roberts, Gary D. Wallace 2001-4-4 1107 Orange Seal Beach National Wildlife Refuge: Seal Beach U. S. Naval Weapons Station, across access road from Nature Center (Bldg 226). 3 Comment
  CDA31508  Arundo donax D. G. Kelch 2006-12-9 06 .559-B Orange Irvine. University Dr along tidal creek just E of I-73. Comment
  RSA719403  Arundo donax Fred M. Roberts, Robert L. Allen 2006-10-8 6432 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
  RSA743474  Arundo donax Fred M. Roberts 2008-10-9 7121 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
  UCSB48033  Arundo donax Roberts, Fred 1981-9-26 Orange San Juan Capistrano; along Trabuco Creek on Camino Capistrano Rd; 0.4 km N jct Junipero Serra Rd, 0.5 km SW Bench Mark 202 66 Comment
  UCR235513  Asclepias curassavica R. E. Riefner Jr. 2011-8-19 11- 100 Orange South Coast, city of Laguna Beach, bluff area west of West Street and Pacific Coast Highway 4 Comment
  RSA563  Asclepias eriocarpa J. T. Howell 1927-7-16 417 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA657741  Asclepias eriocarpa Ken Greby 1985-5-17 25 Orange On hillsides behind PG and E substation located 2 km. SE from Laguna Canyon Rd., on El Toro Rd., adjacent to Leisure World. Comment
  RSA696499  Asclepias fascicularis Keith E. Hoffmaster 1934-7-15 115 Orange Near Santa Ana Comment
  IRVC24991  Asclepias fascicularis Fred M. Roberts, R. Fisher 1986-6-18 3014 Orange Irvine; [San Joaquin Hills], east lateral to Shady Canyon, c.a. 2.9km SE French Hill. 82 Comment
  IRVC14128  Aspidotis californica K. Marvosh 1966-4-29 Orange Silverado Canyon, 400 yds S of community; on shady, moist stream bank in rocky soil. Santa Ana Mountains Comment
  RSA686305  Aspidotis californica T. R. Pray 1964-1-1 2051 Orange San Juan Canyon, near first bridge past National Forest entrance Comment
  IRVC180  Asplenium bulbiferum Kirk Hayward 1965-4-20 HS0562 Orange Costa Mesa: 17th Street. Southern Coastal 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
  RSA5862  Aster subulatus var. ligulatus C. B. Wolf 1932-9-16 4114 Orange San Gabriel River, bordering Los Alamitos Bay 2 Comment
  RSA20375  Astragalus brauntonii Percy C. Everett, E. R. Johnson 1937-11-30 9381 Orange Claymine Canyon to sierra peak Road 609 Comment
  RSA0089238  Astragalus didymocarpus David E. Bramlet, J. E. Harrison 2008-4-3 4157 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
  RSA653211  Astragalus didymocarpus var. didymocarpus David Barrios 1991-5-1 12 Orange Yorba Linda, 1500 ft. northwest of Fairmont Ave and Quail Circle. 365 Comment
  LA204927  Astragalus didymocarpus var. didymocarpus C. L. Hogue; 1954-4-10 sn Orange Irvine Ranch behind Corona Del Mar 60 Comment
  RSA542542  Astragalus gambelianus Fred M. Roberts 1988-3-15 3848 Orange Rancho Mission Viejo: Verdugo Canyon, 2.6 km ENE Point Rancho Survey Mark 149 Comment
  RSA554629  Astragalus trichopodus Scott D. White 1992-10-13 957 Orange Vicinity of city of Brea, immediately N of Carbon Canyon Road and East of Placentia Avenue. +- 1 mile (airline) S/SE of Tonner Canyon. 183 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
  JEPS54671  Astragalus trichopodus var. lonchus C. J. Kraebel 1929-12-9 Orange hillside s San Juan Hill (Rancho Santa Ana Botanic Garden, in extreme e corner of Orange County, n of Santa Ana River, e of Anaheim); Rancho Santa Ana Botanic Garden, nr San Juan Hill 304 Comment
  OBI5666  Astragalus trichopodus var. lonchus Carl B. Wolf 1931-3-6 1860 Orange 1.5 mi below Trabuco Camp Ground, Trabuco Cyn, W slope of Santa Ana Mts 549 Comment
  RSA380  Astragalus trichopodus var. lonchus J. T. Howell 1928-2-7 815 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA2991  Astragalus trichopodus var. lonchus C. B. Wolf 1931-3-3 s.n Orange Botany garden. (RSA?) Comment
  RSA90711  Astragalus trichopodus var. lonchus F. W. Peirson 1923-9-8 4044 Orange Trabucco Canyon. 427 Comment
  RSA737850  Atriplex R. E. Riefner 2006-10-2 06 -466 Orange City of Lake Forest, N of Portola Pwy and immediately W of SR 241 freqay at avocado orchard, vicinity of Tomato Spring. 206 Comment
  SBBG122000  Atriplex amnicola R. E. Riefner 2006-8-6 06 -381 Orange Big Cyn Crk drainage near Back Bay Drive, Newport Bay 8 Comment
Read comments
Dec 13 2012
  RSA696737  Atriplex argentea subsp. expansa J. R. Bruff 1930-10-19 s.n. Orange Delhi Rd. Comment
  POM254668  Atriplex californica F. W. Peirson 1924-2-10 4534 Orange Corona Del Mar Comment
  RSA452401  Atriplex californica Fay A. MacFadden 1931-3-1 2927 Orange Laguna Beach. Comment
  UCR99812  Atriplex californica B. G. Pitzer 1996-4-30 2807 Orange San Joaquin Hills, Crystal Cove State Park, south of City of Irvine on State Hwy 1 (Pacific Coast Hwy) 15 Comment
  VVC1116  Atriplex californica A. C. Sanders, J. Mac 1998-10-17 22267 Orange Coastal flats, Bolsa Chica, near Bolsa Bay, south of Warner Ave., E of the Pacific Coast Highway .3 Comment
  RSA615542  Atriplex californica Robb Hamilton 1989-7-20 s.n. Orange Newport Beach: along Pacific Coast Hwy just west of jct with Newport Blvd. 0 Comment
  JEPS59536  Atriplex canescens L. M. Booth 1932-7-1 1249 Orange Newport Bay Comment
  RSA5333  Atriplex canescens B. D. Stark 1933-1-3 1731 Orange Rancho Santa Ana near pear orchard. 122 Comment
  UC520302  Atriplex canescens Joseph Andorfer Ewan 1932-7-28 7707 Orange seaward bluffs at Corona del Mar; seaward bluffs at Corona del Mar Comment
  UC536969  Atriplex canescens Lawrence M. Booth 1932-7-23 1301 Orange Corona del Mar , Corona del Mar (Newport Beach) Comment
  UCD97302  Atriplex canescens A. C. Sanders 1990-10-6 10193 Orange Newport Bay, North Star County Beach area on the SW end of the bay, 2 km inland of Hwy. 1. 1 Comment
  CAS-BOT-BC170192  Atriplex canescens subsp. canescens I. M. Johnston 1918-9-3 2149 Orange Laguna Beach 6 Comment
  CAS-BOT-BC170197  Atriplex canescens subsp. canescens John Thomas Howell 1927-10-22 3161 Orange In hills on n. side of Santa Ana Canyon. 152 Comment
  IRVC25344  Atriplex canescens subsp. canescens Helen Camp 1988-12-7 12 Orange Aliso Canyon, 2.6km NNE Aliso Peak, Aliso-Wood Canyon Regional Park 37 Comment
  CDA23240  Atriplex canescens var. laciniata R. E. Riefner Jr. 2006-8-6 06 -377 Orange City of Newport Beach, Newport Bay, San Joaquin Road at Back Bay Drive. Comment
  CAS-BOT-BC172635  Atriplex coulteri I. M. Johnston 1918-5-5 1928 Orange Laguna Beach Comment
  RSA580939  Atriplex coulteri D. E. Bramlet 1994-4-30 2377 Orange San Joaquin Hills. At the head of Bommer canyn, approximatly 30m. NE of the rideline truck trail, near peak 1033. 296 Comment
  UCR150378  Atriplex coulteri D. E. Bramlet 1998-7-22 2660 Orange Peninsular Ranges/Coastal Foothills region, San Juan Hills: 854 m west of La Pata Ave. and 1.73 km N of Prima Deshecha Canada. A ridgeline 457 m east of a small, unnamed canyon 159 Comment
  RSA0028779  Atriplex glauca R. E. Riefner Jr. 2002-5-4 20 -87 Orange City of Dana Point, beach W of Pacific Coast Hwy. near mouth of Salt Creek. 15 Comment
  SD219022  Atriplex glauca R. E. Riefner Jr. 2002-5-4 20 87 Orange City of Dana Point, beach west of Pacifi Coast Highway near mouth of Salt Creek. 14 Comment
  SD236264  Atriplex glauca D. Bramlet 1994-2-27 2365 Orange Newport Beach 7.5 Quad. Roadside area, some 120 meters east of intersection of Irvine Ave and University Drive, approximately 1 meter south of University Drive. 14 Comment
  UCR107440  Atriplex glauca B. G. Pitzer, M. Georgiady 1997-4-5 3090 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
  RSA737854  Atriplex glauca R. E. Riefner 2006-3-19 06 /01/1952 Orange City of Newport Beach, near Avocado Ave, and San Nicolas Dr. W of McAthur Blvd. 77 Comment
  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
  UCR46556  Atriplex lentiformis B. G. Pitzer, D. C. Hawks 1986-10-21 0354 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, c. 10 mi. east of Santa Ana, along Jeffrey Road in Hicks Canyon, c. 1.5 mi. north of the South Coast Gun Club 274 Comment
  SEINET11247700 Image available Atriplex lentiformis subsp. breweri Tom Hensel 1973-7-6 248 Orange 1.8 miles S of Doheny State Park along E side of Pacific Coast Hwy (US # 1), Capistrano Beach 1 Ca. Comment
  UC517553  Atriplex pacifica John Thomas Howell 1927-7-17 2788 Orange 1 mi n Laguna Beach; n of Laguna Beach 30 Comment
  RSA638190  Atriplex polycarpa Scott D. White 1998-10-15 7185 Orange Yorba Linda: 1/2 mile south of Telegraph Cyn. Between Ohio St. and Fairmont. Proposed for development 152 Comment
  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
  POM201896  Atriplex rosea L. M. Booth 1932-7-4 s.n. Orange Newport Lagoon Comment
  POM47596  Atriplex rosea I. M. Johnston 1924-8-29 s.n. Orange 4 miles S of Santa Ana Comment
  SD133115  Atriplex semibaccata A. C. Sanders 1990-10-6 10192 Orange Newport Bay, North Star County Beach area on the southwest end of the bay, ca. 2.0 km inland of Highway 1. 0 Comment
  SEINET4136251  Atriplex semibaccata M. L. Conrad, David B. Dunn 1973-6-13 7124 Orange In vicinity of Laguna Beach.; 0 Comment
  POM122998  Atriplex semibaccata Marcus E. Jones 1924-8-26 s.n. Orange Newport. Comment
  SD178169  Atriplex suberecta Tom Perring, Tracy Pinckard 1994-3-2 Orange South Coast: Tustin, Marine Helicopter Station at the corner of Moffett Drive and Jamboree Rd. Growing along a ditch in an agricultural area. 10 Comment
  RSA703251  Atriplex suberecta R. E. Riefner Jr. 1999-5-22 4 -292 Orange City of Dana Point, west of Pacific Coast Hwy., vicinity of Salt Creek Park and Ritz Carlton Hotel. 15 Comment
  SD80969  Atriplex watsonii James Henrickson 1970-7-25 5033 Orange 3I(c) miles northwest of Huntington Beach on margin of Bolsa Bay, Ao mile southeast of Warner Ave., along Pacific Coast Highway. Comment
  RSA697700  Avena barbata Anonymous s.n. Orange Orange County park Comment
  RSA734992  Avena barbata A. C. Sanders, T. B. Salvato 2008-5-13 35378 Orange Lomas de Santiago, Santiago Canyon above (S of) mouth of Hangman Tree Canyon, just below Modjeska Canyon confluence 366 Comment
  UCD56212  Avena barbata Beecher Crampton 1963-5-7 6792 Orange Ca. 11 miles NE of San Juan Capistrano. State Hwy. 74. Lower San Juan Canyon. Santa Ana Mountains. Comment
  IRVC27505  Avena fatua Mark A. Elvin 2004-5-2 3421 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7km (air) NNW UC Irvine campus center. Southern Coastal 3 Comment
  SEINET14287461  Avena fatua R. Walker 1967-12-31 176 Orange Olive, ca 200 yds N of Lincoln Ave on Santa Ana Canyon Rd. 46 Comment
  UCR160445  Avena sativa Robert DeRuff 1992-5-29 435 Orange South Coast, Newport Back Bay, just below the bluff top in the Castaways area 15 Comment
  RSA717048  Azolla filiculoides Fred M. Roberts, Chris M. Barnhill 2005-9-27 6281 Orange San Juan Capistrano: San Juan Creek wash, east of La Novia Road bridge, 1.4km E Mission San Juan Capistrano. 27 Comment
  CHSC26009  Baccharis douglasii James Henrickson 1970-8-22 5292 Orange 2 1/2 miles NNW of Huntington Beach in dry northern part of Bolsa Chica Salt Marsh. 0 Comment
  RSA598135  Baccharis douglasii Brian Fink 1992-10-7 s.n. Orange Huntington Beach, Salt marsh invaded for several years by fresh water Comment
  RSA93210  Baccharis douglasii F. W. Peirson 1924-8-29 5092 Orange 3 miles N of Huntington Beach Comment
  POM4582  Baccharis emoryi C. B. Bradshaw s.n. Orange Near Laguna coast Comment
  RSA663210  Baccharis emoryi R. E. Riefner 2000-3-26 20 -153 Orange NCCP North Ranch Policy Plan Area. Fremont Canyon: N. of major stream fork along W. channel drainage 335 Comment
  RSA792937  Baccharis emoryi R. F. Thorne 1984-1 s.n. Orange Newport Back Bay. Comment
  VVC1118  Baccharis emoryi A. C. Sanders, J. Mac 1998-10-17 22265 Orange Coastal flats, Bolsa Chica, near Bolsa Bay, south of Warner Ave., E of the Pacific Coast Highway .3 Comment
  UCR205870  Baccharis malibuensis R. E. Riefner Jr., T. Smith 2007-6-22 07- 275 Orange Santa Ana Mountains, Irvine Ranch Reserve, Fremont Canyon Conservation Easement, east Fremont Canyon, Black Star SCE Road 545 Comment
  UCR205874  Baccharis malibuensis R. E. Riefner Jr. 2008-6-25 08- 175 Orange Santa Ana Mountains, Irvine Ranch Reserve, Fremont Canyon Conservation Easement, east Fremont Canyon, power line access road off Lakeview SCE Road 483 Comment
  RSA0008328  Baccharis malibuensis R. E. Riefner Jr. 2007-6-22 07 -275 Orange Santa Ana Mts., Irvine Ranch Reserve, Fremont Canyon Conservation Easement, east Fremont Canyon, Black Star SCE Rd. 545 Comment
  RSA741697  Baccharis malibuensis R. E. Riefner Jr. 2008-6-25 08 -173 Orange Santa Ana Mts., Irvine Ranch Reserve, Fremont Canyon Conservation Easement, east Fremont Canyon, power line access road off Lakeview SCE Rd. 470 Comment
  RSA741698  Baccharis malibuensis R. E. Riefner Jr. 2008-6-25 08 -171 Orange Santa Ana Mts., Irvine Ranch Reserve, Fremont Canyon Conservation Easement, east Fremont Canyon, power line access road off Lakeview SCE Rd. 495 Comment
  CAS-BOT-BC99442  Baccharis pilularis B. D. Stark 1933-1-21 4523 Orange San Clemente 91 Comment
  UCR103720  Baccharis pilularis B. G. Pitzer, T. Tennant 1997-11-8 3376 Orange San Joaquin Hills, Crystal Cove State Park, Pelican Point Area, grassland area between Pacific Coast Hwy and the bike trail. 30 Comment
  RSA292686  Baccharis pilularis 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. 61 Comment
  LA203035  Baccharis pilularis subsp. consanguinea C. B. Wolf; 1934-12-26 6262 Orange S-end of town of San Clemente 15 Comment
  IRVC27500  Baccharis salicifolia Mark A. Elvin 2004-5-2 3414 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7km (air) NNW UC Irvine campus center. Southern Coastal 3 Comment
  RSA0043355  Baccharis salicifolia Fred M. Roberts 2012-9-6 7703 Orange SAN JOAQUIN HILLS: Buck Gully, Buck Gully Trail, west end near Poppy Street entrance, 2.1 km WNW Pelican Hill summit. 37 Comment
  RSA5325  Baccharis salicifolia B. D. Stark 1932-12-30 4470 Orange Rancho Santa Ana. River bottom below Mexican houses. 122 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
  UCR101349  Baccharis salicina A. C. Sanders, P. J. MacKay, Tim Thomas, O. F. Clarke 1998-10-17 22269 Orange Coastal flats, Bolsa Chica, near Bolsa Bay, south of Warner Ave., east of the Pacific Coast Highway .3 Comment
  UCR46557  Baccharis salicina B. G. Pitzer, L. F. LaPre 1986-10-20 0310 Orange Peninsular Range; Santa Ana Mtns., Siphon Reservoir, c. 5 mi NE of Irvine and c. 1 mi NE of intersection Irvine Blvd and Sand Canyon Ave 122 Comment
  RSA638194  Baccharis sergiloides Scott D. White 1998-10-15 7187 Orange Yorba Linda: 1/2 mile south of Telegraph Cyn. Between Ohio St. and Fairmont. Proposed for development. 152 Comment
  CAS-BOT-BC334499  Bahiopsis laciniata R. E. Riefner, Jr. 2013-4-5 13 -56 Orange Anaheim Hills, vicinity Hidden Canyon Rd. at Avenue De Santiago 305 Comment
  SD255122  Barbarea orthoceras R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49818 Orange Santa Ana Mountains: Trabuco Canyon. Comment
  IRVC24276  Bassia hyssopifolia Fred M. Roberts, G. A. Marsh 1985-10-26 2524 Orange Santa Ana River: adjacent to Huntington Beach; 0.7km SSW Adams Street bridge. southern coastal 4 Comment
  UCR109633  Bassia hyssopifolia R. D. Goeden, Don W. Ricker 1965-7-7 s.n. Orange Tustin township, near Peters Canyon Channel, east of Santa Ana Marine Corps Air Station 61 Comment
  RSA232231  Bassia hyssopifolia James Henrickson 1970-7-25 5079 Orange 3.5 miles NW of Huntington Beach growing along graded inner slope of East Garden Grove-Wintersburg Flood Control Channel near Bolsa Chica Salt Marsh. 2 Comment
  CAS-BOT-BC75515  Batis maritima C. B. Wolf 1934-7-29 6041 Orange Newport Bay. 0 Comment
  CAS-BOT-BC75516  Batis maritima Peter H. Raven 1958-7-5 13559 Orange Just north of Surfside. Comment
  POM48003  Batis maritima I. M. Johnston 1924-8-29 s.n. Orange 2.5 miles north of Balboa. Comment
  RSA30658  Batis maritima L. C. Wheeler 1932-6-25 858 Orange Newport Bay. 3 Comment
  SFV20021  Batis maritima A. Dittmer, S. Dark 2004-10-3 76 Orange Bolsa Chica wetlands. South side of public parking lot off Highway 1. Comment
  POM17841  Bebbia juncea Philip A. Munz 1923-9-7 7771 Orange Mouth of Trabuco Canyon 305 Comment
  SBBG45055  Bebbia juncea C. B. Wolf 1931-7-25 2295 Orange Santa Ana, Santa Ana Cyn 121 Comment
  UCR192097  Bebbia juncea A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35283 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir 300 Comment
  UC484167  Bebbia juncea var. aspera B. D. Stark 1929-11-2 651 Orange Rancho Santa Ana 152 Comment
  RSA789603  Berberis dictyota R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49716 Orange Santa Ana Mountains: Bedford Truck Trail, ca. 0.8 km below junction with Main Divide Truck Trail Comment
  RSA488143  Bidens laevis Fred M. Roberts, Gordon Marsh 1985-10-26 2519 Orange Santa Ana River: adjacent to Huntington Beach: 0.7 km SSW Adams St bridge 4 Comment
  IRVC20225  Bidens pilosa Fred M. Roberts, K. G. Marsh 1982-10-18 834 Orange Temple Hill, east margin of Top of the World School, Laguna Beach 295 Comment
  CSUSB15  Bloomeria crocea Randy Salstrom 1966-5-8 050866 73 Orange Fullerton area, 100 yards north of the corner of Mariann Ave. and Harbor Blvd. on Harbor Blvd. Comment
  RSA0047638  Bloomeria crocea var. crocea R. E. Riefner Jr. 2014-5-13 14 -120 Orange City of San Clemente, Rancho San Clemente Trail, east c. 0.15 mi. from Ave. Salvador and south c. 0.1 mi. off Utility Access Rd. 239 Comment
  RSA542342  Bloomeria crocea var. crocea Fred M. Roberts, Karlin G. Marsh 1988-4-25 3932 Orange San Joaquin Hills: East flank Pelican Hill, 0.9 kilometer SE summit. 120 Comment
  CAS-BOT-BC31012  Bolboschoenus maritimus John Thomas Howell 1957-9-28 11378 Orange Salt marshes, north limits of Surfside. Comment
  UCSB34952  Bolboschoenus robustus Ferren, Wayne; Whitmore, S.; Millett, B. 1980-8-27 Orange In salt marsh of Newport Backbay; below W bank of Backbay Drive; ca. 1.5 km. NE of Rt. 1; Newport Beach Comment
  UC712166  Bothriochloa barbinodis Charles B. Fiker 1944-7-7 3139 Orange Trabuco Canyon, on Bill Rochester Ranch Trabuco Canyon Comment
  UCD56816  Bothriochloa barbinodis P. B. Kennedy 1924-2-5 s.n. Orange Irvine Range. Comment
  UCD56817  Bothriochloa barbinodis F. M. Reed 1926-4-10 6583 Orange North of Dana Point. Comment
  UCD63676  Bothriochloa barbinodis Daniel Sanchez-Mata 2006-7-1 s.n. Orange Laguna Niguel. Dana Point Highlands. Crown Valley Parkway-Pacific Island Drive. 70 Comment
  UCR174231  Bothriochloa barbinodis A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33056 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
  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
  UC536937  Bowlesia incana Lawrence M. Booth 1932-5-19 1065 Orange Newport Bay Comment
  CAS-BOT-BC420395  Boykinia rotundifolia R. J. Smith 1903-6-1 79 Orange Mill Creek and Santa Ana River 914 Comment
  UCR149498  Brachypodium distachyon Scott D. White, Michael Honer 2004-5-17 10385 Orange South Coast, City of Laguna Niguel. Ridges and open slopes directly N of the intersection of Crown Valley Parkway and Pacific Island Dr 183 Comment
  UCR258355  Brassica geniculata Fred M. Roberts 2014-4-21 7859 Orange South Coast, SAN JOAQUIN HILLS: Laguna Lake 1 (Upper Laguna Lake), south basin 113 Comment
  IRVC1050  Brassica nigra L. McCabe 1965-4-21 Orange Corona del Mar. Newport Beach Comment
  RSA0084260  Brassica nigra Caralisa Breidenbaugh, Mark Breidenbaugh 1992-1-5 19 Orange 1/2 mile south of Chino Hills State Park Boundary. 198 Comment
  RSA0043351  Brassica rapa subsp. sylvestris David Barrios 1991-5-8 36 Orange 1500 ft. northwest of Fairmont Ave and Quail Cir., Yorba Linda. 365 Comment
  CSUSB529  Brassica rapa subsp. sylvestris Shirley Hill 1963-3-23 630323 4 Orange Field in back of Enco Station on Carolina st. Placentia. Abandoned field with other weeds Comment
  SEINET7907478  Brassicaceae G. A. Wojciechowski 1967-1 Orange San Juan Capistrano beside rd 610 Comment
  RSA124713  Brickellia californica E. K. Balls, Percy C. Everett 1957-11-25 22836 Orange 1 mi. NE from Trabuco Oaks. 549 Comment
  RSA642460  Brodiaea filifolia Tony Bomkamp 1995-6-5 s.n. Orange Rancho Mission Viejo. Ridgeline and lots 1 mi N of Ortega Hwy and W of Canada Gobernadora. Comment
  SD240172  Brodiaea filifolia Jim Dice, Larry Vierheilig, Michael Lindsay 1996-5-9 Orange Aliso & Wood Canyons Wilderness Park. Aliso canyon, grassland on other side of bike path just N of Aliso creek. Comment
  UCR251740  Brodiaea filifolia R. E. Riefner Jr. 2014-5-13 14- 119 Orange South Coast, City of San Clemente, Rancho San Clemente Trail, east c. 0.15 mi. from Ave. Salvador and south c. 0.1 mi. off Utility Access Rd. 239 Comment
  SD241668  Bromus carinatus A. C. Sanders 2008-4-29 35144 Orange Peninsular Range; Santa Ana Mountains: Lomas de Santiago, western end of Loma Ridge on road to sheriff's training facility, c. 1.5 miles SW of Santiago Reservoir (Black Star Canyon 7.5'Q) 334 Comment
  UCR193046  Bromus carinatus A. C. Sanders, Fred M. Roberts 2008-6-17 35486 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, West Loma Ridge Spur Road c. 1 km east of Sheriff's Training Facility and 1.6 km SW of Irvine Lake, between hwys 241 and 261 357 Comment
  CAS-BOT-BC156202  Bromus catharticus I. L. Wiggins; J. H. Thomas 1962-6-27 308 Orange Near intersection of 18th and Main Streets, Santa Ana. Comment
  CAS-BOT-BC156207  Bromus catharticus John Thomas Howell 1956-3-11 30923 Orange Yorba Linda. Comment
  RSA653209  Bromus catharticus David Barrios 1991-5-8 27 Orange 1500 ft. Northwest of Fairmont Ave and Quail cir. 365 Comment
  RSA725588  Bromus catharticus Fred M. Roberts 2007-8-6 6560 Orange San Joaquin Hills: Laguna Beach, Laguna Cyn. on east side of Laguna Cyn. Rd. adj. to dog park, 1.2 km S (air) from El Toro Road and 1.8 km WSW Moulton Survey Mk. 52 Comment
  RSA732241  Bromus diandrus A. C. Sanders, Fred M. Roberts 2008-4-22 35051 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
  UC73785  Bromus diandrus J. Burtt Davy 1902-4-4 Orange Orange Comment
  UCR190997  Bromus diandrus A. C. Sanders, Fred M. Roberts 2008-4-22 35051 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge c. 1/4 mi. SE of VABM Bee, above Bee Canyon landfill on road from Hicks Canyon Haul Rd. to Limestone Canyon, c. 3.5 miles WSW of Silverado 493 Comment
  RSA41  Bromus hordeaceus J. T. Howell 1928-3-17 865 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  UCR144145  Bromus madritensis subsp. madritensis Scott D. White, Amanda Duchardt 2003-4-10 9014 Orange Santa Ana Mountians Foothills, Ridges and E-facing canyons above Trampas Canyon 152 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
  UC1146066  Bromus madritensis subsp. rubens C. L. Hitchcock, C. V. Muhlick 1964-3-17 23060 Orange 8 mi e of Yorba Linda (Santa Ana Canyon); Santa Ana Canyon Comment
  SEINET14451699  Bromus rigidus Czarnecki 1966-3-4 26 Orange California State College, Fullerton. N side of parking lot C. Comment
  RSA732169  Bromus rubens A. C. Sanders, Fred M. Roberts 2008-3-25 34539 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  UCR192471  Bromus rubens A. C. Sanders, Fred M. Roberts 2008-3-25 34539 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  RSA751157  Bromus sterilis D. E. Bramlet 2008-4-28 4248 Orange East Fork of Upper Weir Cyn, 1.2km east of the main Cyn. & 91m W of the upper boundary of Gypsum Cyn. 409 Comment
  CDA22572  Bromus willdenowii J. B. Anderson 1966-4-16 586 Orange South Coast; Corona Del Mar: Buck Gully, Little Corona Beach Comment
  UC124604  Cakile edentula A. Davidson, M. D. 1908-5-2 1789 Orange s Newport Bay Newport Bay Comment
  CDA63  Cakile edentula E. L. Paddock Oct 1946 s.n. Orange On Ry. right-of-way. 0 Comment
  RSA648659  Calamagrostis koelerioides R. E. Riefner 2000-6-22 20 -572 Orange NCCP North Ranch Policy Plan Area, NE property; along National Forest boundary, at powerline. 756 Comment
  RSA649676  Calamagrostis koelerioides R. E. Riefner 2000-6-26 20 -579 Orange NCCP North Ranch Policy Plan Area. Along dirt road running N and W of Black Star Canyon Road at powerline tower. 631 Comment
  SBBG133611  Calandrinia breweri R. E. Riefner Jr. 2008-3-12 08 -34 Orange Irvine Ranch Reserve, N Irvine Ranch, E Fork of upper Fremont Cyn along Black Star SCE RD 715 Comment
  UCR192106  Calandrinia breweri A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35314 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along fire line/bulldozer cut, c. 1.5 mi. east of Walnut Cyn Reservoir 346 Comment
  RSA737245  Calandrinia breweri R. E. Riefner 2008-3-5 08 -31 Orange Irvine Ranch Reserve, North Irvine Ranch, S of Windy Ridge Rd. ca. 0.5 mi from West Fork of upper Fremont Canyon. 496 Comment
  UC1929694  Calandrinia breweri R. E. Riefner Jr. 2008-5-20 08 -104 Orange Irvine Ranch Reserve, North Irvine Ranch, western Fremont Canyon, Windy Ridge Rd. Comment
  UCD100199  Calandrinia ciliata C. L. Hitchcock 1966-3-15 24132 Orange 1/2 mile e. of Brea. Comment
  CAS-BOT-BC438320  Calandrinia ciliata Ira L. Wiggins 1966-3-5 20508 Orange Along Highway S-18, about 4.5 mi. E. of Laguna Beach. Comment
  RSA713907  Callistemon citrinus R. E. Riefner Jr. 2005-11-23 5 -773 Orange City of Newport Beach, Upper Newport Bay, E of Jamboree Rd and S of Bayview Way at Bonita Creek channel. 6 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
  CDA5112  Callistemon viminalis R. E. Riefner Jr. 2007-4-1 07 -163 Orange City of Laguna Niguel, Oso Creek, ca 1.5 miles north from Paseo De Colinas Street on Camino Capistrano Street. Comment
  RSA0065925  Calochortus catalinae Allison D. Rudalevige 2015-3-25 ADR 11 Orange City of Laguna Beach, between Hobo Canyon and Aliso Creek. 199 Comment
  RSA48924  Calochortus catalinae Philip A. Munz 1949-5-26 13379 Orange Head of Sierra [Freemont] Canyon, Santa Ana Mountains. 732 Comment
  RSA552928  Calochortus catalinae Fred M. Roberts, Carol A. Roberts 1989-5-11 4350 Orange Santa Ana Mountains: Upper Gypsum Canyon, along ridge road, 5.6 kilometers SW Sierra Peak. 472 Comment
  RSA582819  Calochortus catalinae Mark Elvin, Adrian Wolf 1995-6-15 56 Orange Crystal Cove State Park, back country: Moro Canyon. 61 Comment
  RSA749646  Calochortus catalinae D. E. Bramlet 2008-6-3 4289 Orange Unspecified. 483 Comment
  UCR191776  Calochortus catalinae A. C. Sanders, Fred M. Roberts 2008-3-25 34568 Orange Peninsular Range; Santa Ana Mtns., saddle on ridge near head of Weir Canyon, 5.3 miles ENE of Villa Park, 3.1 mi. N of (Santiago Reservoir) Irvine Lake 405 Comment
  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
  UCR222412  Calochortus catalinae D. E. Bramlet 2008-3-31 4136 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, 223 m east of upper Hicks Haul Rd., tributary of Limestone Canyon, 1 km south of Santiago Canyon Rd. 328 Comment
  CAS-BOT-BC483374  Calochortus invenustus Le Roy Abrams 1901-6-15 1848 Orange Summit of Santiago Pk. 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
  CAS-BOT-BC492707  Calochortus splendens A. M. White 1974-6-1 1429 Orange 20 Miles E of Santa Ana, N of Silverado Canyon 822 Comment
  POM6366  Calochortus splendens Philip A. Munz, L. T. Street, G. Williams 1919-5-3 2625 Orange Santa Ana River Canyon. Comment
  RSA542333  Calochortus splendens Fred M. Roberts 1988-4-10 3919 Orange Lomas De Santiago: Loma Ridge, 1.0 kilometer N Bolero Lookout. 415 Comment
  RSA679228  Calochortus splendens Fred M. Roberts 2003-6-25 5942 Orange Santiago peak, north slopes along ridge east of Main Divide truck trail, 0.6km NNW summit. 1605 Comment
  CAS-BOT-BC492696  Calochortus splendens D. L. Crawford May 10 s.n. Orange Laguna Mts. 304 Comment
  CAS-BOT-BC492702  Calochortus splendens Le Roy Abrams 1901-6-16 1798 Orange Trabuco Canon Comment
  RSA369038  Calochortus splendens N. C. Cooper 1944-6-4 1316 Orange Elsinore Mountain. 1067 Comment
  POM256710  Calochortus weedii var. intermedius W. Pequegnat 1940-6-14 s.n. Orange Yaeger's Meadow, Santa Ana Mountains. Comment
  RSA580944  Calochortus weedii var. intermedius D. E. Bramlet 1994-6-2 2378 Orange San Joaquin Hills. On ridgeline north of Little Sycamore Canyon. The site in located 244 m NE of Little Sycamore Canyon and 1.3 km west of Laguna Canyon. Road. 165 Comment
  RSA588989  Calochortus weedii var. intermedius D. E. Bramlet 1994-6-23 2389 Orange Upper portion of Little Sycamore Canyon, W of Laguna Canyon Road. 140 Comment
  RSA649066  Calochortus weedii var. intermedius D. E. Bramlet 2000-6-27 3064 Orange Fremont Canyon ridge road at crossing of Edison transmissionlines. NE of the old mine site, S of junction with Blind Canyon access road. 482 Comment
  RSA690971  Calochortus weedii var. intermedius Scott D. White, Michael Honer 2003-5-29 9427 Orange Santa Ana Mtn foothills: Rancho Mission Viejo. Hills above Canada Gobernadora, west side of canyon, ca. 1 air mile north of Ortega hwy. 91 Comment
  SBBG19551  Calochortus weedii var. intermedius H. F. Copeland 1938-6-29 1574 Orange back of Laguna Beach Comment
  UC1952586  Calochortus weedii var. intermedius D. Bramlet 1994-6-23 2392 Orange San Joaquin Hills. On ridgeline between Camarillo and Shady Canyons. The site is located 1.5 km west of Laguna Cyn. and 183 m SE of the Shady-Camarillo Cyn. Road junction; Laguna Beach 7.5 USGS Quadrangle 37 18 130m. N x 4 27 850m E. Comment
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Oct 17 2017
  UCR208444  Calochortus weedii var. intermedius R. E. Riefner Jr. 2008-6-5 08- 146 Orange South Coast, near city of Orange, west side of Hicks Haul Road, Rattlesnake Canyon southwest of the asphalt plant; Irvine Ranch Reserve, Management Area 6 Comment
  POM6379  Calycadenia tenella Philip A. Munz 1919-5-3 2631 Orange Santa Ana River Canyon. Comment
  RSA750000  Calycadenia tenella A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35323 Orange Weir Canyon, 0.3 mi. west of Eastern Transportation Corridor (Hwy 241) and 1.45 mi. east of south end of Walnut Canyon Reservoir. 335 Comment
  POM65980  Calystegia macrostegia subsp. arida L. R. Abrams 1901-6-14 1800 Orange Trabuco Canyon Comment
  RSA794329  Calystegia macrostegia subsp. arida Justin M. Wood 2010-3-31 1446 Orange Santa Ana River floodplain, 0.25 miles north of Coal Canyon wildlife corrridor, west of Green River Golf Course on bluff south of the river. 122 Comment
  RSA0022444  Calystegia macrostegia subsp. arida R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49796 Orange Santa Ana Mountains: Trabuco Canyon. Comment
  SD255134  Calystegia macrostegia subsp. arida R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49796 Orange Santa Ana Mountains: Trabuco Canyon. Comment
  RSA0126614  Calystegia macrostegia subsp. cyclostegia Fred M. Roberts 2012-4-27 7537 Orange San Joaquin Hills: Buck Gully, W of intersection of Ridge Park Road and Newport Coast Drive, 1.5 km W Signal Peak. 179 Comment
  IRVC975  Calystegia macrostegia subsp. intermedia L. McCabe 1965-4-27 Orange Corona del Mar. Newport Beach Comment
  RSA539401  Calystegia occidentalis subsp. fulcrata Fred M. Roberts, Carol A. Roberts 1988-6-9 4073 Orange Main Divide Truck trail, Modjeska peak, west slope, 0.5 km W summit. 1460 Comment
  RSA697157  Calystegia occidentalis subsp. occidentalis R. H. McArthur 1934-4-14 s.n. Orange Laguna Canyon. Hillside. Comment
  IRVC993  Calystegia soldanella D. W. Bryant 1965-3-27 Orange Pacific Coast Hwy and Beach Blvd. Huntington Beach Comment
  SFV18301  Calystegia soldanella J. Diaz, V. Bendijo, S. L. Diaz, H. Mercurio 2002-5-3 s. n. Orange Newport Beach. Small dunes south of Balboa Road. Comment
  RSA697158  Calystegia soldanella R. H. McArthur 1934-4-7 s.n. Orange Near outlet of Santa Ana River. Just above tide line. Comment
  RSA0013578  Camissonia D. E. Bramlet 2008-3-26 4120 Orange Bee Canyon. Bowerman landfill site. 202m S of the Bee Cyn. Access Road, 151m west of landfill entrance. Comment
  UCR118679  Camissonia A. C. Sanders, D. Malueg, K. D. Jones 2000-4-19 23341 Orange Pacific Coast, Bolsa Chica Lagoon, along dirt roads in oil field, east of Hwy 1, east of Bolsa Chica St. 11 Comment
  RSA49672  Camissonia bistorta L. R. Abrams 1901-6-15 1793 Orange Santiago Peak trail. Comment
  RSA504  Camissonia bistorta J. T. Howell 1928-4-7 898 Orange Bee Canyon, Rancho Santa Ana 152 Comment
  RSA678499  Camissonia bistorta Fred M. Roberts, Robt. Allen, Carol A. Roberts 2003-5-11 5843 Orange Dana Point Headlands: 0.8km SSW Richard Henry Dana School north of Marguerita Drive. 76 Comment
  RSA751983  Camissonia bistorta Fred M. Roberts 2008-3-27 6802 Orange Dana Point: Dana Point Headlands, CNLM Preserve near NE Gate, 0.5km W Marine Institute (Dana Point Harbor). 75 Comment
  SEINET7073418  Camissonia bistorta A. G. Vestal 1963-4-24 s.n. Orange La Paz Canyon, Rancho Mission Viejo. Coordinate datum: NAD27. Comment
  RSA25949  Camissonia californica E. Johnson 1941-5-1 s.n. Orange River bottom, Rancho Santa Ana Comment
  UCR191475  Camissonia californica A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34658 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
  UCR222623  Camissonia cheiranthifolia T. B. Salvato 2010-10-27 5108 Orange South Coast, Dana Point Headlands, Harbor Point Park, south of Scenic Dr. and Cove Rd., beyond the end of Green Lantern St., overlooking Dana Point Harbor 70 Comment
  CHSC10115  Camissonia cheiranthifolia subsp. suffruticosa J. W. Johnson 1960-8-18 Orange Newport Beach. Beside Newport Bay by Highway 101. Comment
  POM3331  Camissonia cheiranthifolia subsp. suffruticosa D. L. Crawford 1927-8-3 742 Orange Laguna Beach Region, Aliso Pt. shore cliffs. Comment
  RSA678741  Camissonia cheiranthifolia subsp. suffruticosa Valerie L. Soza, K. Clark, LeRoy Gross, Will Miller, Fred M. Roberts, Gary D. Wallace 2001-4-4 1111 Orange Anaheim Bay: Seal Beach U. S. Naval Weapons Station, southwestern edge of Seal Beach National Wildlife Refuge. 3 Comment
  RSA698256  Camissonia cheiranthifolia subsp. suffruticosa R. H. McArthur 1934-4-7 s.n. Orange Near outlet of Santa Ana River Comment
  RSA75439  Camissonia ignota F. W. Peirson 1923-5-6 3505 Orange Trail to Santiago Peak, Santa Ana Ms., from Trabuco Canyon. 1067 Comment
  RSA507  Camissonia lewisii J. T. Howell 1928-4-7 902 Orange Santa Ana River bottom, Rancho Santa Ana 152 Comment
  UCR271006  Camissonia lewisii Mitch Provance, Travis Kegel 2016-4-8 416- 57 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
  RSA542490  Camissonia micrantha Fred M. Roberts, T. Sholars, B. Stechmeyer 1988-3-29 3880 Orange Santa Ana Mountains: Hot Springs Canyon, 0.5 km by road north Hwy 74, 0.9 km ESE Juan Rancho Survey Marker. 223 Comment
  UCR267215  Camissonia micrantha Fred M. Roberts, Lee Ann Caranza 2009-4-7 7143 Orange South Coast Region, DANA POINT HEADLANDS: Dana Point CNLM Preserve, 0.5 km WNW Dana Point Marine Institute at Dana Point Harbor, near Interpretive Center 70 Comment
  RSA509  Camissonia strigulosa J. T. Howell 1928-4-7 900 Orange Santa Ana River bottom, Rancho Santa Ana 152 Comment
  UC635390  Camissoniopsis bistorta H. L. Mason 1926-4-25 2928 Orange 5 mi s Laguna Comment
  UC942888  Camissoniopsis bistorta Lewis S. Rose 1949-4-18 49050 Orange sea-bluffs Dana Point Comment
  SDSU8589  Camissoniopsis cheiranthifolia subsp. suffruticosa R. M Beauchamp 1968-2-17 768 Orange Beside rod in NW side of Dana Point. Comment
  UC2030082  Camissoniopsis micrantha Valerie Soza, K. Clark, LeRoy Gross, Will Miller, Fred M. Roberts, G. D. Wallace 2001-4-4 1125 Orange Anaheim Bay: Seal Beach U. S. Naval Weapons Station, southwestern edge of Seal Beach National Wildlife Refuge. Comment
  UCR224398  Cannabis sativa Robt. L. Allen, Reginald I. Durant 2008-5-9 s.n. Orange Santa Ana Mountains, Silverado Canyon, 1.6 road miles east northeast above Maple Springs Forest Gate, between Lost Woman Canyon and Spruce Canyon 766 Comment
  CAS-BOT-BC37128  Capsella bursa-pastoris Ira L. Wiggins 1966-3-5 20499 Orange Along Highway S-18, about 4.5 miles east of Laguna Beach. Comment
  UCR191439  Capsella bursa-pastoris A. C. Sanders, Fred M. Roberts 2008-4-8 34721 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, head of Hicks Canyon, S of Santiago Reservoir 351 Comment
  LA204271  Cardamine californica O. A. Plunkett; 1939-2-18 sn Orange 15 mi. E of Capistrano Comment
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Nov 15 2013
  POM369329  Cardamine californica var. integrifolia M. B. Dunkle 1934-2-19 3843 Orange San Juan Creek 305 Comment
  RSA369328  Cardamine californica var. integrifolia Albert J. Perkins 1913-3-6 s.n. Orange San Juan Hot Springs Comment
  RSA484623  Cardamine californica var. integrifolia Thekla Mohr 1917-04 3191 Orange Laguna Comment
  POM202599  Cardaria draba L. M. Booth 1932-5-15 1197 Orange E of Hungtington Beach. Comment
  RSA441726  Cardionema ramosissimum Albert J. Perkins 1923-03 s.n. Orange Santa Ana. Near Cottege, Arch Beach. Comment
  UC1719445  Cardionema ramosissimum D. Atwood 1993-3-26 17689 Orange Corona Del Mar State Park along Newport Coast Drive 0 Comment
  RSA581446  Carex alma Fred M. Roberts, Gordon Marsh 1989-5-12 4366 Orange Santa Ana Mountains: Santiago Canyon, Flemming Regional Park, just E of Modjeska at end of paved road, ca. 3.0 kilometers WSW Laurel Springs. 436 Comment
  CAS-BOT-BC118506  Carex praegracilis Helen D. Geis 1902-4-1 567 Orange Ditch banks near Santa Ana Comment
  POM1460  Carex praegracilis I. M. Johnston 1918-5-5 1890 Orange El Toro. 76 Comment
  UC211995  Carex praegracilis I. M. Johnston 1918-5-5 1889 Orange El Toro 76 Comment
  RSA594884  Carex praegracilis Fred M. Roberts, D. Stadlander, R. Vizgirdas 1992-4-24 4839 Orange El Toro Marine Base: just west of Borrego Wash, 2.7 kilometers SE Lambert Reservoir dam. 171 Comment
  SEINET7572179 Image available Carex praegracilis Helen D. Geis 1902-1 505 Orange [no precise loc] Comment
  UCR204231  Carpobrotus chilensis Valerie Soza, LeRoy Gross, Kevin Clark, Will Miller, Fred M. Roberts, G. D. Wallace 2001-4-4 1106 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
  UCR220034  Carpobrotus chilensis Rebecca T. Vo 2010-6-1 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
  RSA743459  Carpobrotus edulis Fred M. Roberts 2008-7-10 7067 Orange Dana Point: Dana Point Headlands, CNLM Preserve, along north slopes above Dana Strand Beach, 0.8km WNW Marine Institute, Dana Point Harbor. 45 Comment
  CDA37853  Carthamus creticus D. Asakawa 1988-1 s.n. Orange Off Tonner Canyon Road. 0 Comment
  CDA6923  Carthamus creticus M. K. Bellue 1945-5-8 Orange Tonner Canyon - Union Oil. 0 Comment
  JEPS89156  Castilleja affinis Rimo Bacigalupi, and L. Heckard 1962-3-25 8383 Orange 3.5 mi e El Modeno (near Handy Creek, on road to Irvine County Park) Comment
  RSA689448  Castilleja affinis Scott D. White, Amanda Duchardt 2003-4-10 9002 Orange Santa Ana Mountain Foothills: Ridges and east-facing canyons above Trampas Canyon. 122 Comment
  RSA734649  Castilleja affinis A. C. Sanders, Fred M. Roberts 2008-3-25 34572 Orange Peninsular Range; Santa Ana Mtns.: Saddle on ridge near head of Weir Canyon, 5.3 miles ENE of Villa Park, 3.1 mi. N of (Santiago Reservoir) Irvine Lake. 405 Comment
  UCR106285  Castilleja affinis B. G. Pitzer, M. Georgiady 1997-4-5 3075 Orange San Joaquin Hills, Crystal Cove State Park, along 'No Dogs' Trail (from parking area, along western bottom edge of ridge between Muddy Canyon & Moro Canyon), to just below intersection with 'Poles' trail 152 Comment
  SBBG128670  Castilleja affinis subsp. affinis R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49649 Orange Coal Cyn (NW of Sierra Peak); Santa Ana Mtns Comment
  UC1552001  Castilleja exserta Lyman Benson 1946-4-27 12052 Orange Corona del Mar; Ocean Bluff 15 Comment
  RSA743515  Castilleja exserta subsp. exserta Fred M. Roberts 2008-4-9 6866 Orange Dana Point: Dana Point Headlands, CNLM Preserve near Outlook 2, 0.7 km W Marine Institute (Dana Point Harbor). 52 Comment
  RSA19418  Castilleja foliolosa I. W. Clokey 1932-3-1 5342 Orange Laguna Beach. Comment
  RSA764938  Castilleja foliolosa Doris Bowers 1971-4-19 1681 Orange Black Star Canyon Indian Site 762 Comment
  RSA704075  Castilleja foliolosa D. E. Bramlet, Fred M. Roberts 2003-5-15 3437 Orange Donna O'Neill Reserve. SE corner of the reserve, 244m west of Cristianitos Rd., and 823m north of Pico. 122 Comment
  UCSB45138  Castilleja foliolosa Woicik, Richard 1976-5-21 Orange Modjeska Canyon; near fire station Comment
  RSA588889  Castilleja minor subsp. spiralis Fred M. Roberts Jr. 1990-6-4 4665 Orange Hall Canyon, 1.8 km NNW Mustang Spring at east edge of Flying B Ranch 421 Comment
  UCR137191  Castilleja minor subsp. spiralis M. B. Dunkle 1934-6-18 3989 Orange Peninsular Range; Santa Ana Mtns., San Juan Canyon 305 Comment
  UCR14364  Castilleja minor subsp. spiralis Steve Kulju 1974-5-27 s.n. Orange Peninsular Range; Santa Ana Mtns, San Juan Canyon, 16 mi SW of Lake Elsinore on State Hwy 74 488 Comment
  RSA429526  Caulanthus heterophyllus Albert J. Perkins 1913-3-6 s.n. Orange San Juan Hot Springs Comment
  UCR103216  Caulanthus heterophyllus Scott D. White 1997-2-19 4695 Orange Santa Ana Mtns, above Modjeska Canyon; proposed water tank site 488 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
  IRVC24790  Caulanthus lasiophyllus Karlin G. Marsh 1989-3-4 Orange Lomas Ridge, ridge between Hicks and Rattlesnake Canyons. Lomas de Santiago 210 Comment
  UC774707  Ceanothus C. B. Wolf and E. Norland 1941-4-3 10029 Orange Comment
  RSA101784  Ceanothus crassifolius R. Weatherby 1950-2-25 1024 Orange Harding Canyon, Santa Ana Mts. 457 Comment
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Oct 23 2012
  RSA14727  Ceanothus crassifolius E. R. Johnson 1935-2-21 s.n. Orange Santa Ana River Bottom. Rancho Santa Ana. Comment
  RSA0054953  Ceanothus crassifolius Keith E. Hoffmaster 1935-4-19 851 Orange Santa Ana Mts. [Orange or Riverside]. Comment
  SBBG104029  Ceanothus crassifolius var. crassifolius B. Pitzer, S. Hemstreet 1992-5-21 1949 Orange St Hwy 74, 1 mi uphill from the 2000 ft marker, and to the left ca. 0.1 mi on old paved rd 762 Comment
  CAS-BOT-BC50807  Ceanothus integerrimus P. C. Everett 1935-6-19 7236 Orange Santa Ana Mts., Trabuco Canyon, 1 mi. below summit of Truck Trail 1005 Comment
  RSA6582109  Ceanothus integerrimus T. A. Daubert 1991-5-19 663 Orange Tucker Wildlife Sanctuary, Modjeska Canyon, office planter. Comment
  SEINET13945958 Image available Ceanothus integerrimus S. Lambert 1981-1 1958 Orange Cleveland Nat'l Forest, 15.6 mi E of hwy. 5 by hwy 74, roadside, 1350 ft elev. 411 Comment
  RSA17220  Ceanothus integerrimus var. puberulus Carl B. Wolf 1936-6-22 8002 Orange Santa Ana Mts. Slopes of Modjeska Pk. at abouit the Head of Harding Canyon. 1220 Comment
  RSA798602  Ceanothus leucodermis Robert F. Thorne, E. W. Lathrop 1977-5-18 49741 Orange Santa Ana Mountains: summit of Santiago Peak. 1733 Comment
  UCSB47641  Ceanothus leucodermis Roberts, Fred 1980-5-3 Orange Main Divide Truck Trail on fire break, 1.6km WNW Trabuco Peak, Santa Ana Mtns., 1295 Comment
  SD130284  Ceanothus megacarpus B. Pitzer 1987-4-24 505 Orange 0.5 mile N of State Hwy 91, off Gypsum Canyon Rd., river at N side of stable. 120 Comment
  UCR192088  Ceanothus megacarpus A. C. Sanders, Fred M. Roberts, Amber O'Neal, D. E. Bramlet 2008-5-9 35301 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along old dirt road, c. 1.25 mi. ESE of Walnut Cyn Reservoir 340 Comment
  RSA25850  Ceanothus oliganthus Carl B. Wolf 1941-8-15 11157 Orange Along the Main Divide Motorway, just N. of head of Trabuco Truck Trail. 1220 Comment
  RSA95352  Ceanothus oliganthus F. W. Peirson 1923-5-6 3494 Orange Trail to Santiago Peak from Holy Jim Canyon. 991 Comment
  LA44923  Ceanothus oliganthus var. sorediatus W. Pequegnat; 1938-3-19 sn Orange Holy Jim Trial 944 Comment
  LA44933  Ceanothus palmeri W. E. Pequegnat; 1937-9-6 sn Orange Santa Ana Mountains, Ortega Rd Comment
  UC1071228  Ceanothus papillosus R. St. John 1931-2-24 187 Orange Los Pinos Peak Elsinore Quad. Comment
  RSA5303  Ceanothus papillosus var. roweanus B. D. Stark 1933-1-5 1754 Orange 2 mi. so. of summit of skyline Drive on road along ridge to Santiago Peak. Santa Ana Mts. 1067 Comment
  UCD169753  Ceanothus papillosus var. roweanus R. F. Thorne; C. W. Tilforth, E. W. Lathrop 1977-4-27 49697 Orange Northern Santa Ana Mountains: Sierra Peak. 899 Comment
  PASA2514  Ceanothus sorediatus Frank W. Peirson 1925-4-11 Orange Silverado Canyon, Santa Ana Mountains 914 Comment
  LA42099  Ceanothus spinosus W. Pequegnat; 1938-9-3 sn Orange Ortega Rd 365 Comment
  UC774794  Ceanothus spinosus Carl B. Wolf 1941-8-15 11151 Orange w slope Santiago Truck Trail to Santiago Peak 1.2 mi above F. S. Gate; Santa Ana Mountains 609 Comment
  UCSB48024  Ceanothus spinosus Roberts, Fred 1981-4-11 Orange Santa Ana Mtns.: San Juan Canyon, hwy. 74, 3.7km E San Juan Guard Station 114 Comment
  OBI10327  Ceanothus tomentosus H. E. McMinn 1935-6-22 3927 Orange West of Covina, Santa Ana Mts Comment
  RSA3170  Ceanothus tomentosus subsp. olivaceus Carl B. Wolf 1932-3-8 2693 Orange Santiago Creek, 1 mil. E. Villa Park, W. base Santa Ana Mts. 152 Comment
  UC1495811  Cenchrus ciliaris Jan West 1983-10-8 Orange Freeway right of way along the Newport Freeway (#55) at its intersection with Chapman Ave. Orange (city of Orange) 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
  RSA0065467  Centaurea melitensis J. Bruce Smiley 1940-5-4 s.n. Orange Santa Ana Wash. 457 Comment
  RSA184117  Centaurea melitensis I. L. Wiggins 1966-5-25 20663 Orange Along Nutwood Lane S margin of campus of CSCF, Fullerton Comment
  RSA657738  Centaurea melitensis Ken Greby 1985-5-17 30 Orange On hillsides behind PG and E substation located 2 km. SE from Laguna Canyon Rd., on El Toro Rd., adjacent to Leisure World. Comment
  CAS-BOT-BC284477  Centaurea solstitialis T. C. Fuller 1962-6-7 8869 Orange N. end of Fullerton Golf Course, Fullerton Comment
  RSA697664  Centaurium venustum Lucille Crawford 1932-4-23 s.n. Orange Laguna Beach. Comment
  UCR230835  Centaurium venustum Dick Newell, Don Millar 2011-6-14 175 Orange South Coast, San Joaquin Hills, upper Buck Gully near Newport Beach 134 Comment
  RSA0040038  Centranthus ruber Anonymous 1933-10-13 s.n. Orange Santa Ana. Comment
  CAS-BOT-BC288839  Centromadia parryi subsp. australis Adrian Wolf 1998-7-1 410 Orange South Coast: Peters Canyon Channel, E of channel near Harvard Ballfield, between Harvard Ave and creek, S of Warner Ave to Barranca 15 Comment
  CAS-BOT-BC288849  Centromadia parryi subsp. australis Louis C. Wheeler 1932-6-25 849 Orange 5 miles W Santa Ana 30 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
  RSA0119680  Cerastium glomeratum Fred M. Roberts 2015-3-10 7925 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
  CAS-BOT-BC400156  Ceratophyllum demersum John Thomas Howell 1927-8-13 2987 Orange Santa Ana River bottom, Santa Ana Canon [Canyon] 152 Comment
  POM6368  Cercocarpus betuloides Philip A. Munz, L. T. Street, G. Williams 1919-5-3 2626 Orange Santa Ana River Canyon. Comment
  RSA101785  Cercocarpus betuloides R. Weatherby 1950-2-25 1025 Orange Harding Canyon, Santa Ana Mountains. 579 Comment
  SD143756  Cercocarpus betuloides Scott D. White 1996-12-20 4637 Orange Santa Ana Mountains: Above Modjeska Canyon: Proposed water tank site. 424 Comment
  CAS-BOT-BC142125  Cercocarpus betuloides var. betuloides Munz; Street; Williams 1919-5-3 2626 Orange Santa Ana River Canyon Comment
  RSA787496  Cercocarpus betuloides var. betuloides Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49704 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  SBBG14720  Cercocarpus betuloides var. betuloides P. H. Raven 1962-5-18 17753 Orange Main Divide Truck Trail at saddle ca. 1 mi N of Santiago Peak 1493 Comment
  IRVC23289  Chaenactis artemisiifolia Fred M. Roberts, K. G. Marsh 1985-7-18 2053 Orange Temple Hill, Goff Ridge, 0.9km NE Goff Island off Nye Place Laguna Beach 168 Comment
  SD225727  Chaenactis artemisiifolia R. K. Brummitt 1998-5-23 19996 Orange 22 km NE of San Juan Capistrano on Rte. 74; dry roadisde in rocky canyon 299 Comment
  UCR193348  Chaenactis artemisiifolia A. C. Sanders 2008-5-28 35437 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Bee Flat at mouth of Limestone Canyon 264 Comment
  CAS-BOT-BC279499  Chaenactis artemisiifolia Steve Boyd; Tim Ross 1992-5-20 7454 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of the wilderness in Lucas Canyon along a new section of trail heading up major side canyon northward to Sitton Peak Road (7S09) 457 Comment
  SEINET2028646 Image available Chaenactis glabriuscula Lawrence M. Booth 1932-5-18 1056 Orange Newport Bay Comment
  POM351783  Chaenactis glabriuscula var. glabriuscula M. B. Dunkle 1938-6-23 5376 Orange San Juan Canyon. Comment
  SFV17359  Chaenactis glabriuscula var. glabriuscula J. N. Hogue, J. D. Dilley, D. L. Bishop 1998-4-9 103 .1 Orange Santa Ana Mountains San Juan Canyon at San Juan Hot Springs. Just inside western boundary of Cleveland National Forest. 213 Comment
  UC1543106  Chaenactis glabriuscula var. glabriuscula Donald G. Nelson 1935-4-14 281 Orange edge of dry mesa facing Newport Bay (and the ocean, along the main coast highway); Newport Beach Comment
  POM294107  Chaenactis glabriuscula var. megacephala Lyman Benson 1946-4-27 12053 Orange Corona Del Mar; Drainage area: Pacific Ocean. 15 Comment
  RSA70390  Chamaesyce polycarpa var. polycarpa F. W. Peirson 1924-5-31 4663 Orange 5 miles southeast of Laguna Beach. Comment
  RSA602209  Chamaesyce serpillifolia L. C. Wheeler 1945-5-20 6046 Orange Rancho Santa Ana Botanic Garden: In front of assembly hall. Comment
  IRVC850  Chamomilla suaveolens L. Burns 1965-4-6 Orange Comment
  UC1543088  Cheilanthes newberryi Donald G. Nelson 1935-4-6 236 Orange e San Juan Capistrano (and just s of boundary of Cleveland Nat'l Forest, <canyon> branching northward from summer ranger station on main hwy); San Juan Canyon Comment
  UC1543076  Chenopodium Donald G. Nelson 1936-5-29 428 Orange S. Grand Ave. s Buena Park; Bob Barnes Ranch Comment
  POM201677  Chenopodium album L. M. Booth 827 Orange Santa Ana Canyon. Comment
  RSA696210  Chenopodium album Keith E. Hoffmaster 1927-5-18 s.n. Orange Santa Ana. Comment
  SEINET11940524  Chenopodium album J. F. Bright, Wyman, C. 1933-1 8178 Orange Deltoro Comment
  JEPS59701  Chenopodium ambrosioides L. M. Booth 1932-7-25 1312 Orange Coastal Santa Ana River Comment
  RSA423407  Chenopodium ambrosioides Gertrude Dunn 1930-8-9 s.n. Orange Vacant lot 1/2 mi. east of Huntington Beach. Comment
  RSA731982  Chenopodium californicum A. C. Sanders, Fred M. Roberts 2008-4-8 34774 Orange Peninsular Range: Lomas de Santiago, SSE os f Santiago Reservoir on Harding Truck Trail at Dripping Springs Loop, above Limestone Canyon. 475 Comment
  UCR237847  Chenopodium glaucum Mark A. Elvin 2003-2-2 2276 Orange South Coast, San Joaquin Marsh, UCI campus SSE of intersection of Jamboree Blvd. and Campus Dr. 2 Comment
  IRVC27496  Chenopodium murale Mark A. Elvin 2004-5-2 3403 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7km (air) NNW UC Irvine campus center. Southern Coastal 3 Comment
  IRVC387  Chenopodium murale B. Mawdsley 1965-3-30 Orange east bluff at Mar Vista. Newport Beach Comment
  IRVC394  Chenopodium murale D. DeVault 1965-3-4 Orange Newport Beach Comment
  RSA165143  Chenopodium murale Mark Parratt 1962-4-11 139 Orange Corona del Mar beach head. 4 Comment
  UCR154290  Chenopodium murale Mark A. Elvin 2004-5-2 3403 Orange Southern Coastal, Irvine: San Joaquin Freshwater Marsh, near Campus and University Drives; 1.7 km (air) NNW UC Irvine campus center 3 Comment
  POM262154  Chenopodium murale L. M. Booth 1932-6-9 1175 Orange Santa Ana River, 1 mile from ocean. Comment
  SEINET7067538 Image available Chenopodium pumilio 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
  UC1618038  Chorizanthe Donald G. Nelson 1935-4-14 292 Orange near Pacific Electric Railway Station Newport Beach Comment
  RSA450089  Chorizanthe fimbriata J. C. Roos 1965-6-16 s.n. Orange Dana Point near Doheney Beach. Comment
  UCR4086  Chorizanthe procumbens Carole Sims 1965-3-28 s.n. Orange South Coastal Plains, Salt Creek Road off Pacific Coast Highway, between South Laguna and Dana Point 18 Comment
  RSA542533  Chorizanthe procumbens Bill O'Connell 1991-5-31 6 Orange Pelican Hill: west summit. 190 Comment
  RSA587871  Chorizanthe procumbens Fred M. Roberts, Carol A. Roberts 1990-5-16 4629 Orange Santa Ana Mts.: small canyon southeast side of Irvine Mesa, 3.5 km N Bolero Lookout. 396 Comment
  CAS-BOT-BC255247  Chorizanthe staticoides Frank W. Peirson 1924-5-31 4644 Orange Laguna, near sea level Comment
  RSA698367  Chorizanthe staticoides Kenneth Beard s.n. Orange East of Irvine Park. Comment
  RSA749998  Chorizanthe staticoides A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35328 Orange Weir Canyon, 0.3 mi. west of Eastern Transportation Corridor (Hwy 241) and 1.45 mi. east of south end of Walnut Canyon Reservoir 335 Comment
  RSA788915  Chorizanthe staticoides Fred M. Roberts 1999-6-10 5237 Orange Peninsular Range, Santa Ana Mtns. Region: Lomas de Santiago: Loma Ridge, Agua Chinon Cyn., 1.2 km S Bolero Spring and 2.4 km W Bolero Lookout. 324 Comment
  UC1175013  Chorizanthe staticoides E. K. Balls 1958-6-26 23814 Orange Comment
  UCR16544  Chorizanthe staticoides P. Healy 1968-5-11 s.n. Orange South Coastal Plains Region, Cameo Shores Rd., Corona del Mar 18 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
  IRVC22736  Chrysanthemum coronarium Fred M. Roberts 1985-5-13 1785 Orange South Laguna; Mouth of Aliso Canyon, 0.6km NW Aliso Peak, 6 Comment
  RSA639979  Chrysanthemum coronarium L. C. Wheeler 1947-5-3 6474 Orange Newport Bay. Comment
  CDA1068  Cirsium arvense Ahelfeld 1957-9-4 s.n. Orange 0 Comment
  RSA0070676  Cirsium occidentale var. californicum R. D. Goeden, D. W. Ricker 1965-6-21 s.n. Orange Pacific Coast: Dana Point. 76 Comment
  UCR109766  Cirsium occidentale var. californicum R. D. Goeden, Don W. Ricker 1965-6-21 s.n. Orange Dana Point 61 Comment
  SEINET5507045 Image available Cirsium occidentale var. coulteri A. M. Johnson 1932-4-23 4034 Orange NE corner 3-4 mi SE of Yorba Linda along Santa Ana River; Santa Ana Canyon Comment
  RSA184137  Cirsium vulgare I. L. Wiggins 1965-11-3 20311 Orange Margin of orange grove, east side of California State College at Fullerton campus, near Placentia Ave., Fullerton Comment
  CAS-BOT-BC172421  Clarkia bottae C. L. Hitchcock 1928-5-5 49 Orange Mouth of Santa Ana Canyon 150 Comment
  RSA5466  Clarkia bottae Carl B. Wolf 1932-7-2 3825 Orange Carbon Canyon, 1/8 mile below La Vida Springs 213 Comment
  RSA708725  Clarkia bottae Fred M. Roberts, Robert L. Allen, Chris Barnhill, Nancy Hatfield 2005-5-30 6223 Orange west slope of Modjeska Peak, Harding Canyon watershed, Main Divide Road, 0.46km W summit. 1670 Comment
  UCR237809  Clarkia bottae Dick Newell, Don Millar 2012-6-5 267 Orange Peninsular Range; Santa Ana Mtns., Loma Ridge East, 0.35 mi. due east of Hicks Haul Rd. 411 Comment
  POM3136  Clarkia epilobioides P. A. Munz 1918-5-4 2175 Orange Laguna Beach Comment
  POM6351  Clarkia purpurea subsp. quadrivulnera P. A. Munz 1919-5-3 2669 Orange Santa Ana River Canyon. Comment
  RSA610412  Clarkia purpurea subsp. quadrivulnera R. S. Woglum 1932-4-16 s.n. Orange Trabuco Canyon, Santa Ana Mountains, Cleveland National Forest Comment
  RSA637490  Clarkia purpurea subsp. quadrivulnera Valerie L. Soza, LeRoy Gross 1999-6-8 507 Orange Santa Ana Mountains: Santiago and Modjeska Canyons, above Tucker Wildlife Sanctuary, above the town of Modjeska 518 Comment
  UCR98130  Clarkia similis George K. Helmkamp, E. A. Helmkamp 1997-4-24 1657 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, 1.6 mi. SE of Ortega Hwy (Calif. Hwy 74) on Rd. 7-S14 549 Comment
  CAS-BOT-BC439946  Claytonia perfoliata subsp. mexicana Helen D. Geis 1904-4-1 742 Orange Silverado Canon [Canyon], Santa Ana Mountains Comment
  HSC17702  Claytonia perfoliata subsp. mexicana S. M. Clapp 1966-4-10 35 Orange 10 mi. into Silverado Canyon 183 Comment
  SD101082  Claytonia perfoliata subsp. mexicana John M. Miller 1978-3-18 709 Orange Santa Ana Mountains; San Juan Creek Canyon, 13.6 miles E of Hwy. 101 on Hwy. 74. 366 Comment
  UCR241062  Claytonia perfoliata subsp. perfoliata Dick Newell, Don Millar 2013-2-5 314 Orange Peninsular Range; Santa Ana Mtns., mouth of Fremont Canyon at mouth, 1/2 mi. NE of Irvine Dam spillway 213 Comment
  RSA16489  Clematis lasiantha Percy C. Everett 1935-6-18 7218 Orange Santa Ana Mts: Summit of Santiago Peak. 1732 Comment
  UCR250860  Clematis lasiantha Dick Newell, Judy Booth 2014-2-16 353 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, Long Canyon Rd., 0.25 mi. east of El Cariso Hot Shot Camp 905 Comment
  UC537273  Clematis ligusticifolia Lawrence M. Booth 1932-7-21 1290 Orange Anaheim Marsh Comment
  POM6423  Clematis pauciflora P. A. Munz, Street, Williams 1919-5-3 2665 Orange Santa Ana River Canyon. Comment
  RSA698567  Clematis pauciflora Minor Warne 1934-4-21 s.n. Orange Blackstar Canyon Laguna Canyon Forks. Comment
  RSA747621  Clematis pauciflora Fred M. Roberts 2008-4-16 6904 Orange Dana Point: Dana Point Headlands, CNLM Preserve, 0.8 km W Marine Institute, Dana Point Harbor. 45 Comment
  POM2489  Cleome isomeris P. A. Munz 1918-5-5 2188 Orange Laguna Beach. Comment
  RSA329669  Cleome isomeris G. D. Wallace 1966-4-16 479 Orange Along Hwy 101 about 10 miles north of Camp Pendleton. Comment
  RSA789221  Clinopodium chandleri Naomi S. Fraga, Duncan S. Bell 2009-5-11 2721 Orange Chiquita Trail 762 Comment
  UCR256937  Clinopodium chandleri Naomi Fraga, Duncan S. Bell 2009-5-11 2721 Orange Peninsular Range; Santa Ana Mountains, Chiquita Trail, Lion Canyon 762 Comment
  LA208484  Cneoridium dumosum B. Lower; 1954-4-3 Orange Dry hill behind Laguna Comment
  SEINET8726617 Image available Cneoridium dumosum Lytton J. Musselman 1977-1 5469 Orange above Pacific Ocean at Laguna Beach near Nyes Road. Comment
  CAS-BOT-BC402182  Comarostaphylis diversifolia subsp. diversifolia R. F. Thorne; E. W. Lathrop; W. Wisura 1977-7-8 49607 Orange Santa Ana Mountains: rocky ravine tributary to San Juan Canyon, along Ortega Highway (74) about 2 miles above San Juan Fire Station. Comment
  RSA594812  Comarostaphylis diversifolia subsp. diversifolia Fred M. Roberts 1993-3-11 4881 Orange Laguna Beach: South Laguna , Upper Hobo Canyon, 1.4 km NNW Aliso Peak. 201 Comment
  IRVC22479  Conium maculatum Fred M. Roberts 1985-4-24 1655 Orange Laguna Beach; Laguna Canyon on Laguna Canyon Rd., 0.7km N jct. El Toro Rd. Southern Coastal 76 Comment
  UCR193002  Conium maculatum A. C. Sanders, Fred M. Roberts 2008-6-17 35455 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Hicks Canyon Haul Road 0.5 mi. east of the Foothill Transportation Corridor 244 Comment
  RSA357138  Conium maculatum R. F. Thorne 1975-4-6 45575 Orange San Joaquin Marsh: Near Irvine and coast. Comment
  IRVC973  Convolvulus arvensis A. Weir 1965-5-9 Orange Mar Vista, east bluff. Newport Beach Comment
  RSA394801  Convolvulus arvensis Josephine Derigo 1941-7-13 20412 Orange Anaheim Comment
  RSA573293  Convolvulus arvensis Steve Boyd, Timothy S. Ross, Bob Boyd 1994-9-14 8350 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area of the Cleveland National Forest, Lucas Canyon trail at stream crossing in Lucas Canyon. 317 Comment
  RSA653183  Convolvulus arvensis David Barrios 1991-5-1 16 Orange Yorba Linda, 1500 ft. northwest of Fairmont Ave and Quail Circle., (117 deg. 45' 00'' +4 28 / 33 deg. 52' 37'' + 37 51.5). 365 Comment
  SD143550  Convolvulus arvensis R. D. Goeden, D. W. Ricker 1965-6-15 12481 UC Orange Northwest of El Toro: Tustin Township, near Borrego Canyon Wash, southeast edge of El Toro Marine Corps Air Station. 106 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
  RSA0127597  Convolvulus simulans Fred M. Roberts, Jutta Burger 2016-3-22 8027 Orange Lomas de Santiago: west of Irvine Lake and north of Santiago Canyon Road, south slopes of Hill 1322, 2.0 km S Irvine Lake Dam spillway and 0.9km W Irvine Lake Park. 271 Comment
  RSA557  Convolvulus simulans J. T. Howell 1928-2-26 s.n. Orange Bee Canyon, Rancho Santa Ana. 305 Comment
  UCR158170  Convolvulus simulans Adrian Wolf, David Charlton 1998-5-4 200 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
  RSA748269  Conyza bonariensis A. C. Sanders, Fred M. Roberts 2008-6-17 35512 Orange middle section of Weir Canyon, SSE of Walnut Canyon Reservoir 225 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
  POM201847  Conyza canadensis L. M. Booth 1932-12-13 1375 Orange Newport Bay. Comment
  RSA348137  Conyza canadensis I. L. Wiggins 1965-10-24 20286 Orange At corner of Yorba Linda and State College Blvds., Fullerton. Comment
  RSA749046  Conyza canadensis A. C. Sanders, Fred M. Roberts 2008-8-7 36008 Orange Weir Canyon at powerline crossing, 1.0 mi. (air) SSE of Walnut Canyon Reservoir 226 Comment
Read comments
Dec 21 2010
  RSA725587  Conyza floribunda Fred M. Roberts 2007-8-6 6561 Orange San Joaquin Hills: Laguna Beach, Laguna Cyn. on east side of Laguna Cyn. Rd. adj. to dog park, 1.2 km S (air) from El Toro Road and 1.8 km WSW Moulton Survey Mk. 52 Comment
  RSA731654  Conyza floribunda Fred M. Roberts 2007-10-29 6625 Orange Laguna Beach: Temple Hill, Nyes Place, ca. 0.2 km S Moulton Meadows Park. 232 Comment
  UCR179759  Conyza floribunda R. E. Riefner Jr. 2006-10-8 06- 481 Orange South Coast, Irvine, San Diego Creek near 405 Freeway, between 405 and Laguna Road 51 Comment
  RSA254979  Cordylanthus maritimus C. W. Tilforth 1975-9-3 1040 Orange Northeast shoreline of Upper Bay, Newport Beach Comment
  RSA412318  Cordylanthus maritimus subsp. maritimus L. M. Booth 1932-7-1 1233 Orange Newport Bay Comment
  UC537013  Cordylanthus maritimus subsp. maritimus Lawrence M. Booth 1932-7-19 1273 Orange Bolsas Marsh Comment
  RSA0084752  Cordylanthus rigidus A. C. Sanders, Joshua M. Brokaw 2008-5-28 35428 Orange Peninsular Range; Santa Ana Mtns.: upper Weir Canyon, along old dirt road west of Eastern Transportation Corridor, 1.65 mi. east of south end of Walnut Cyn Reservoir (Black Star Canyon 7.5' Q.) 372 Comment
  POM356004  Coreopsis californica M. B. Dunkle 1935-3-3 4345 Orange San Juan Canyon. 457 Comment
  POM47594  Corethrogyne filaginifolia var. filaginifolia I. M. Johnston 1924-8-29 s.n. Orange 2.5 miles north of Balboa. Comment
  CLARK-A1528-1790  Corethrogyne filaginifolia var. virgata John C. Roos 1937-9-1 2519 Orange Laguna Beach Comment
  HSC94214  Coronopus didymus D. Atwood 1993-3-29 17727 Orange Huntington Beach along Beach Blvd., 0.5 mi. N of the beach Comment
Read comments
Jul 14 2012
  UCR106307  Coronopus didymus B. G. Pitzer, M. Georgiady 1997-4-5 3097 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-BC291357  Cotula coronopifolia Carl B. Wolf 1932-3-8 2692 Orange Sunset Beach at soutehrn limits of city 1 Comment
  CLARK-A1528-929  Cotula coronopifolia Patricia A. Andrews 1975-6-26 5921 Orange Capistrano Bay Beach 9 Comment
  UCR138397  Cotula coronopifolia Scott D. White, Brian Leatherman 1997-6-12 5335 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
  RSA0054856  Cotula coronopifolia Grace Adams 1938-5-28 s.n. Orange Santiago Creek. Comment
  RSA728656  Cotula hispida R. E. Riefner 2006-2-12 06 -26 Orange City of San Clemente, N ca. 0.5 mi. along the beach from Ave. Del Mar/ San Clemente area. 3 Comment
  UC1930991  Cotyledon orbiculata R. E. Riefner Jr. 2006-8-25 06 -407 Orange South Coast: Dana Point Harbor, Dana Point Harbor Dr. at Ensenada Pl. Comment
  CAS-BOT-BC427769  Crassula connata Carl B. Wolf 1932-3-8 2673 Orange 1/2 mi. No. of Corona Del Mar. Borders of Newport Bay. 7 Comment
  RSA699758  Crassula connata Fred M. Roberts, D. E. Bramlet 2003-5-15 5867 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, tributary to Cristianitos Cyn., 1.68km SW Gato Gate and .24km NW of SDG&E substation. 116 Comment
  RSA773507  Crassula connata Fred M. Roberts 1999-5-14 5227 Orange Lomas de Santiago: Loma Ridge, Upper Limestone Canyon, 0.7 km NW Bolero Spring and 2.6 km SW Silverado School 490 Comment
  RSA556  Cressa truxillensis J. T. Howell 1927-6-30 249 Orange Bryant Ranch near Long Beach. 15 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
  UC536957  Cressa truxillensis Lawrence M. Booth 1932-5-18 1052 Orange Newport Bay Comment
  UCR158164  Cressa truxillensis Adrian Wolf 1998-5-27 333 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
  RSA394757  Cressa truxillensis Albert J. Perkins 1917-11-3 s.n. Orange Santa Ana. Comment
  RSA682574  Crotalaria capensis A. C. Sanders, Mark Elvin 2003-10-12 27318 Orange Southern Coastal Slope: Irvine, UCI Arboretum, UCI campus near intersection of Jamboree Blve. and Campus Dr. 15 Comment
  RSA480686  Croton californicus Josephine Derigo 1941-7-18 s.n. Orange Anaheim Comment
  RSA4829  Croton californicus James Snow 1932-1 s.n. Orange Bryant Ranch, near Long Beach. Station #1. Plant #3. 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
  POM8979  Cryptantha barbigera P. A. Munz, R. D. Harwood 3472 Orange Santa Ana Mountains, Silverado Canyon 549 Comment
  RSA747713  Cryptantha clevelandii Fred M. Roberts 2008-3-19 6782 Orange Dana Point: Dana Point Headlands, CNLM Preserve, 0.8km W Marine Institute, Dana Point Harbor. 45 Comment
  RSA539422  Cryptantha clevelandii Fred M. Roberts, Karlin G. Marsh 1989-3-7 4194 Orange Lomas de Santiago: Loma Ridge, Hicks Canyon, 2.3km W Bee Survey Mark. 165 Comment
  RSA586740  Cryptantha clevelandii R. E. Riefner 1994-5-22 94 -379 Orange W Terrce area of San clemente State Beach along Calafia road. Comment
  RSA680736  Cryptantha intermedia Scott D. White 2003-3-21 8824 Orange Santa Ana Mountain Foothills: Rancho Mission Viejo. East-facing slopes above an unnamed tributary to San Juan Creek. 122 Comment
  UCR281522  Cryptantha intermedia Mitch Provance 2017-6-9 617- 91 Orange Coyote Hills, North Fullerton, East side of Gilbert St., 0.5 miles ENE of intersection with Castlewood Dr. 124 Comment
  UCR191349  Cryptantha microstachys A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34630 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
  UCR263638  Cryptantha microstachys Ed Kentner 2012-4-19 128 Orange Foothills of the Santa Ana Mountains, Caspers Wilderness Park, Bell Canyon 160 Comment
  POM201754  Cucurbita foetidissima L. M. Booth 1932-6-29 1227 Orange Newport Bay. Comment
  IRVC19540  Cupressus forbesii Karlin G. Marsh 1982-7-30 Orange Coal Canyon, west slope, at Claymont Clay Mine. Santa Ana Mountains Comment
  RSA14452  Cupressus forbesii Philip A. Munz, I. M. Johnston 1922-5-18 5566 Orange Santa Ana Mts. Santa Ana River Canyon. Alluvial soil along canyon, 2d large canyon south of Orange County line. Comment
  RSA17652  Cupressus forbesii C. B. Wolf 1935-1-2 6279 Orange Slopes of Sierra Peak, west of Claymine Canyon, along road to Peak. 670 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
  RSA7199  Cupressus forbesii B. D. Stark 1933-3-17 4532 Orange Claymine Canyon, Santa Ana Mts. 609 Comment
  RSA7200  Cupressus forbesii B. D. Stark 1933-3-17 4532 -D Orange Claymine Canyon, Santa Ana Mts. 609 Comment
  UC219097  Cupressus forbesii Munz and Johnston 1922-5-18 5566 Orange second large canyon s Orange County line; Santa Ana Mts., Santa Ana River Canyon 304 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
  UCR140975  Cupressus forbesii June Latting 1973-6-30 s.n. Orange Santa Ana Mountains, 2 miles south of Sierra Peak, on road toward Skyline Drive 732 Comment
  RSA409706  Cuscuta californica George Price 1967-5-14 s.n. Orange Silverado Canyon Comment
  RSA648945  Cuscuta californica Mark Breidenbaugh, Caralisa Breidenbaugh 1992-5-25 74 Orange 1/2 mile south of Chino Hills State Park Boundary. 228 Comment
  RSA70997  Cuscuta californica F. W. Peirson 1923-9-7 4038 Orange Trail from Trabuco Canyon to Santiago Peak 1296 Comment
  RSA788244  Cuscuta californica R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49628 Orange Santa Ana Mountains: San Juan Canyon, along Ortega Highway (74) across from San Juan Fire Station Comment
  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
  POM201678  Cuscuta ceanothi L. M. Booth 826 Orange Santa Ana Canyon. Comment
  RSA545240  Cuscuta ceanothi R. F. Thorne 1967-08 41893 Orange Trabuco Canyon. Comment
  RSA788245  Cuscuta ceanothi R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49627 Orange Santa Ana Mountains: San Juan Canyon, along Ortega Highway (74) across from San Juan Fire Station Comment
  RSA394864  Cuscuta salina Anstruther Davidson 1907-9-1 1780 a Orange Newport Comment
  RSA610222  Cuscuta salina Fred M. Roberts, Julie Vanderwier 1997-4-29 5020 Orange Bolsa Chica Salt Marsh (US Fish & Wildlife Service cell 17); west of old oil field, 1.17 km. SSE Chica Survey Mark. 0 Comment
  RSA0036642  Cuscuta subinclusa Robt. Allen 2007-8-11 s.n. Orange Peninsular Ranges; Santa Ana Mountains region: Western arm of Modjeska Peak, at junction of North Main Divide Road and road spur to the summit. 1531 Comment
  CAS-BOT-BC299753  Cynara cardunculus Carl B. Wolf 1936-7-8 8100 Orange Western end of Newport Bay, Coast Highway 9 Comment
  CAS-BOT-BC299754  Cynara cardunculus Le Roy Abrams 1901-6-1 1767 Orange Near Irvine Comment
  UCR4614  Cynara cardunculus John Dean 1965-1 s.n. Orange Hwy between Corona Del Mar & Santa Ana 23 Comment
  SEINET10859119  Cynara cardunculus Charlene A. Bennett, David B. Dunn; Chester T. Dziekanowski 1976-7-20 Bennett 426 Orange Collected along Crown Valley Parkway, 1 mi. SW of I-5. 30 Comment
  UCR246515  Cynodon dactylon Fred M. Roberts 2013-5-30 7778 Orange Lomas de Santiago, Santiago Creek Wash, at Santiago Canyon Road bridge, south side, 0.3 km west of the junction of Silverado and Santiago Canyon Roads 299 Comment
  RSA21058  Cyperus eragrostis Ramon Valverde 1938-8-4 9446 Orange Rancho Santa Ana, Santa Ana Canyon 122 Comment
  RSA734855  Cyperus eragrostis A. C. Sanders, Mitch Provance 2008-5-20 35400 Orange Lomas de Santiago, mouth of Hangman Tree Canyon just above confluence with Santiago Creek Canyon, c. 1/2 mile below Modjeska Canyon confluence 366 Comment
  RSA798098  Cyperus eragrostis Robert F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49572 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74) Comment
  UCSB52418  Cyperus eragrostis Roberts, Fred; Marsh, K. 1982-10-18 Orange Laguna Beach: east flank of Temple Hill; along east margin of Top of the World School 295 Comment
  POM12447  Cyperus erythrorhizos Phillip A. Munz 1922-9-2 6359 -A Orange Laguna Lakes. 46 Comment
  POM1353  Cyperus erythrorhizos D. L. Crawford 1916-7-26 s.n. Orange Laguna Canyon. Comment
  CAS-BOT-BC114321  Cyperus esculentus Helen D. Geis 1902-9-1 561 Orange Ditch banks, Santa Ana. Comment
  RSA708531  Cyperus involucratus Fred M. Roberts, Robert L. Allen, Chris Barnhill 2004-8-21 6108 Orange Caspers Wilderness Park, San Juan Cyn., Old San Juan Hot Springs, c.a. 0.4km SW San Juan Ranger Station, north of SR 74. 214 Comment
  UCR258624  Cyperus involucratus Fred M. Roberts 2014-7-25 7885 Orange South Coast, SAN JOAQUIN HILLS: Upper Laguna Canyon, Laguna Lake 1 (Upper Laguna Lake), north basin, c.a. 5.1 kn ENE summit Signal Hill. Laguna Coast Wilderness Park 113 Comment
  UCSB56514  Cyperus odoratus Marsh, G.; Marsh, K. 1977-11-21 Orange Santa Ana Mts.; San Juan Hot Springs Comment
  SD240772  Cyrtomium falcatum R. E. Riefner Jr. 2011-7-1 11 83 Orange City of Newport Beach, beach area west of the end of Camep Shores Road; south ca. 1 mi from Poppy Avenue. 2 Comment
  CDA20218  Dactyloctenium aegyptium R. Tiffer 2003-9-4 PDR 1256123 Orange Southwestern California; Santa Ana River bank in Anaheim. 0 Comment
  RSA790026  Datisca glomerata R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49563 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74) Comment
  UCSB10435  Datura wrightii Haller, Norman 1953-4-25 Orange U.S. 101, 3 miles northwest of Laguna Beach Comment
  IRVC19407  Daucus carota R. L. Allen 1983-2-8 A 614 Orange Newport Beach: 1935 Highland Street at Kathleen Street. Southern Coastal Comment
  UCD127408  Daucus pusillus Lawrence M. Booth 1932-5-12 1033 Orange Newport Bay. Comment
  UCD127423  Daucus pusillus B. Pitzer 1996-4-30 2780 Orange Upper Newport Bay: California Department of Fish and Game Ecological Reserve off (west of) Jamboree Road. 6 Comment
  CAS-BOT-BC299331  Deinandra fasciculata H. F. Copeland 1938-6-28 s.n. Orange Hills back of Laguna Beach Comment
  CHSC26108  Deinandra fasciculata James Henrickson 1970-7-24 5001 Orange 3 miles NW of Huntington Beach near sandy 'Rabbit' Island in Bolsa Chica Salt Marsh near Inner Bolsa Bay. Roadside. 0 Comment
  UCR224403  Deinandra kelloggii Robt. L. Allen, Linnell R. Allen 2008-7-27 s.n. Orange Santa Ana Mountains, Long Canyon Watershed, along Long Canyon Road, 128 m southeast of juntion with spur to Mystic Oaks (McConville Camp), 0.48 air miles upslope from junction with Ortega Hwy (SR74) 749 Comment
  CAS-BOT-BC412802  Deinandra paniculata R. E. Riefner, Jr. 2013-8-16 13 -189 Orange City of Dana Point, canyon W side of Dana Hills High School, N of Stonehill Drive, E of Cortes Drive 86 Comment
  CAS-BOT-BC413810  Deinandra paniculata R. E. Riefner, Jr. 2014-7-5 14 -215 Orange City of San Clemente, San Clemente State Beach, SSW ca. 100 m from the intersection of Ave. Calafia and South Ola Vista Rd. 40 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
  CAS-BOT-BC9095  Delphinium cardinale John Thomas Howell 1927-7-26 2837 Orange SE fork of Claymine Canyon, northern Santa Ana Mtns. 304 Comment
  RSA6131  Delphinium cardinale E. R. Johnson 1932-6-14 s.n. Orange Edge of Rancho Santa Ana, Santa Ana Canyon. Alt. 450 ft. 137 Comment
  RSA542412  Delphinium cardinale Karlin G. Marsh, Gordon Marsh 1989-6-25 s.n. Orange Santa Ana Mountains: Central Santiago Canyon, Santiago Truck Trail, ca. 4.4km SW Santiago Peak. 792 Comment
  RSA400033  Delphinium patens subsp. hepaticoideum Albert J. Perkins 1913-4-19 s.n. Orange Trabuco Canyon. Comment
  RSA548863  Delphinium patens subsp. hepaticoideum Fred M. Roberts, Carol A. Roberts 1988-6-10 4095 Orange Santa Ana Mountains: Modjeska Peak, 0.9km SW summit. 1542 Comment
  RSA594894  Delphinium patens subsp. hepaticoideum Fred M. Roberts, Sandy Leatherman, B. Leatherman 1994-4-24 4907 Orange San Juan Canyon, south side of Calif. Route 74, 1.2 km SW Lower San Juan Picnic Ground. 390 Comment
  RSA2091  Dendromecon rigida subsp. rigida Stark 1931-5-23 2229 Orange Santa Ana River Bottom; sw of Ranch houses; Rancho Santa Ana Comment
  UCD114656  Descurainia pinnata Rimo Bacigalupi; P. C. Hutchison 1962-3-16 8234 Orange along U.S. 101, 2 miles north of Doheny Beach State Park. Comment
  CAS-BOT-BC43187  Descurainia pinnata subsp. brachycarpa Helen D. Geis 1902-3-1 s.n. Orange Santa Ana River. Comment
  UCR130486  Descurainia pinnata subsp. halictorum R. E. Riefner Jr. 1999-5-22 99- 291 Orange South Coast, city of Dana Point, west of Pacific Coast Hwy, vicinity of Salt Creek Park and Ritz Carlton Hotel 15 Comment
  IRVC1079  Descurainia pinnata subsp. menziesii J. Morgan 1965-4-27 Orange Elmore Ranch. San Clemente Comment
  CAS-BOT-BC402216  Dicentra chrysantha P. C. Everett 1935-5-19 6870 Orange Santa Ana Mts., Baker Canyon, West Ladd Truck Trail 304 Comment
  RSA725576  Dicentra chrysantha Fred M. Roberts, Robert L. Allen, Trish Smith 2007-6-15 6538 Orange Upper Fremont Canyon, 5.2 km ENE Irvine Lake Spillway and 2.0 km WNW Hidden Ranch. 673 Comment
  UCR223432  Dichelostemma capitatum Dick Newell, Don Millar 2011-2-8 054 Orange Peninsular Range; Santa Ana Mtns., MWD road overlooking Boy Scout Camp, just east of outdoor education property, 1.5 mi. NW (312 deg. ) of Irvine Lake dam 257 Comment
  HSC3089  Dichelostemma capitatum subsp. capitatum J. J. Wagoner 1965-4-11 21 Orange 3 mi. N of Modjeska Canyon along Irvine Rd. Comment
  RSA734607  Digitaria sanguinalis Keith E. Hoffmaster 1933-10-8 280 Orange Santa Ana Comment
  UCR188995  Digitaria sanguinalis Fred M. Roberts 2007-10-29 6624 Orange South Coast, Laguna Beach, Temple Hill. Nyes Place, c. 0.2 km S of Moulton Meadows Park 232 Comment
  SD237346  Dimorphotheca fruticosa Mark A. Elvin 2003-2-23 2315 Orange South Coast: Irvine, San Joaquin Marsh along the berm of San Diego Creek. 3 Comment
  RSA708441  Diospyros lycioides subsp. lycioides Mark Elvin 2004-5-2 3418 Orange Southern Coastal, Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7 km (air) NNW of UC Irvine Campus center. 3 Comment
  SJSU1768  Diplacus aurantiacus G. B. Youngberg 1956-3-27 185 Orange Irvine Park c. 8 mi E of Orange 259 Comment
  CAS-BOT-BC152261  Diplacus clevelandii C. B. Wolf 1933-11-8 5535 Orange Santa Ana Mts., Trabuco Canyon on S. wall opposite Trabuca Truck Trail 914 Comment
  CAS-BOT-BC152059  Diplacus longiflorus John Thomas Howell; Alice Eastwood 1937-4-24 3929 Orange 2 miles east of San Juan Hot Springs Comment
  RSA0054846  Diplacus puniceus Anonymous s.n. Orange Laguna Canyon. Comment
  CDA24808  Diplotaxis tenuifolia R. K. Bishop Nov 1937 Orange 12 miles northwest of Orange on railroad right-of-way. 0 Comment
  RSA609758  Distichlis spicata L. C. Wheeler 1946-9-28 6382 Orange Newport Bay: 1/2 mile north of main coast highway. 2 Comment
  RSA735749  Distichlis spicata A. C. Sanders, Fred M. Roberts 2008-6-17 35495 Orange Lomas de Santiago, West Loma Ridge Spur Road c. 0.8 mi SW of Irvine Lake and 0.9 mi. SE of Sheriff's Training Facility, just east of Hwy 241 280 Comment
  UCR158165  Distichlis spicata Adrian Wolf 1998-5-27 338 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
  RSA699993  Dodecatheon clevelandii L. C. Hull 1934-3-11 s.n. Orange Ortega Highway. Comment
  RSA539349  Dodecatheon clevelandii Fred M. Roberts, Karen Kirtland 1989-2-22 4184 Orange San Joaquin Hills: Upper Buck Gully, 0.7km NE Pelican Hill. 207 Comment
  CAS-BOT-BC41654  Draba cuneifolia var. cuneifolia Carl B. Wolf 1932-2-17 2661 Orange Rancho Santa Ana Botanic Garden, just west Adensotoma sparsifolium bed. 182 Comment
  CAS-BOT-BC41674  Draba cuneifolia var. integrifolia Ira L. Wiggins 1966-2-25 20477 Orange Firestone Boy Scout Reservation east of Brea. Comment
  POM488  Draba cuneifolia var. integrifolia C. F. Baker 1904-4-1 4126 Orange Anaheim. Comment
  CAS-BOT-BC41692  Draba cuneifolia var. sonorae Helen D. Geis 1902-1-1 529 Orange Santiago Creek. Comment
  CAS-BOT-BC41701  Draba cuneifolia var. sonorae Helen D. Geis 1902-3-29 s.n. Orange Santa Ana River. Comment
  RSA699860  Drymocallis glandulosa Minor Warne 1934-04 s.n. Orange Laguna Canyon Forks Comment
  RSA701645  Drymocallis glandulosa Keith E. Hoffmaster 1934-4-22 s.n. Orange Santa Ana Mountains Comment
  IRVC124  Dryopteris arguta A. S. Boughey, P. Pembrook 1965-6-15 1056 Orange Santa Ana Mountains; Saddleback Mtn., Cleveland National Forest. Peninsular Ranges Comment
  IRVC22501  Dryopteris arguta Fred M. Roberts 1985-4-30 1673 Orange Laguna Beach: Temple Hill; at margin of "Dripping Springs Canyon"; 0.4km NNE Top of the World School. Southern Coastal 255 Comment
  IRVC21221  Dryopteris arguta Fred M. Roberts 1984-3-9 1248 Orange Wagon Whell Regional Park: cyn 2.9 km NE Median Rancho Survey Mark; 1.6 km NW bench Mark 422. Southern Coastal 165 Comment
  LA204783  Dudleya blochmaniae subsp. blochmaniae None; 1951-4-26 sn Orange Salt Creek Beach, Laguna Comment
Read comments
Nov 15 2013
  UC1015325  Dudleya blochmaniae subsp. blochmaniae Reid Moran 1950-4-24 3388 Orange San Clemente Comment
  CAS-BOT-BC428263  Dudleya edulis Reid Moran 1949-5-28 3257 Orange Aliso Canyon, Laguna Beach Comment
  CAS-BOT-BC428264  Dudleya edulis L. R. Abrams 1901-6-1 1785 Orange San Joaquin Hills Comment
  SD207011  Dudleya edulis Reid Moran 1948-6-23 3092 Orange Three Arches Beach Comment
  CAS-BOT-BC411405  Dudleya lanceolata P. C. Everett 1935-6-17 7141 Orange Santa Ana Mts., Coldwater Canyon, 1/2 mi. above Glen Ivy Resort 457 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
  RSA699757  Dudleya lanceolata Fred M. Roberts, D. E. Bramlet 2003-6-6 5885 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, Cristianitos Cyn., 1.41km SSW Gato Gate and 0.35km NNW of SDG&E substation. 117 Comment
  RSA716782  Dudleya lanceolata Fred M. Roberts, Michelle Balk, Robert Allen, Chris Barnhill 2004-6-19 6063 Orange Santa Ana Mtns.: Holy Jim Cyn.: Holy Jim Trail, 3.1km SE summit of Santiago Peak. 695 Comment
  RSA769617  Dudleya lanceolata E. W. Lathrop 1974-6-27 7423 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  UCR59229  Dudleya lanceolata Robert McKernan 1989-5-18 s.n. Orange Santa Ana Mtns Foothills, Serrano Creek, 4 km north of Trabuco Rd. at the end of Lake Forest Rd. 6 km east of El Toro Military Base 274 Comment
  RSA5410  Dudleya lanceolata C. B. Wolf 1932-12-16 1681 Orange At bar of plumes 0.5 mi. from Skyline Drive on firebreak road to Sierra Peak, Santa Ana Mts. Alt. 2500-3000 ft. 762 Comment
  CAS-BOT-BC109672  Dudleya multicaulis John Thomas Howell 1927-6-1 2409 Orange Southern Puente Hills in the Santa Ana Canon [Canyon]. 152 Comment
  RSA552936  Dudleya multicaulis Fred M. Roberts 1989-5-7 4337 Orange Lomas De Santiago: 1.8km W Santiogo Reservoir Spilway, 4.0 km SW Sierra Peak. 213 Comment
  SD114475  Dudleya multicaulis Darley F. Howe 1967-5-30 4362 Orange Hillside back of Laguna Beach. Comment
  UCR177286  Dudleya multicaulis Scott D. White, Amanda Duchardt 2003-5-1 9148 Orange Santa Ana Mountains, Slopes above the west side of Canada Gobernadora and adjacent small canyon to the west 122 Comment
  UCR250870  Dudleya multicaulis Dick Newell, Judy Booth, Jutta Burger, Ron Vanderhoff 2014-4-5 360 Orange Peninsular Range; Santa Ana Mtns., Blind Canyon, NW ridge, 0.49 mi. west of Blind Canyon Rd. and 241 Toll Rd. intersection 381 Comment
  UCR37798  Dudleya multicaulis 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
  RSA397822  Dudleya pulverulenta M. B. Dunkle 1934-6-18 3980 Orange San Juan Canyon Comment
  UCR24651  Dudleya pulverulenta John C. Roos 1965-6-16 s.n. Orange Dana Point Comment
  UC1015432  Dudleya pulverulenta subsp. pulverulenta Jack Whitehead 1946-6-12 396 Orange Dana Point Comment
  POM48549  Dudleya stolonifera F. M. Reed 1925-5-14 4994 Orange Aliso Canon. Comment
  IRVC28635  Dudleya viscida Mark A. Elvin 2005-9-2 4490 Orange Santa Ana Mtns: along San Juan Creek, ca. 1.0km upstream from San Juan Hot Springs; off Ortega Hwy (74), near bridge. Peninsular Ranges 259 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
  SD236267  Dysphania multifida A. C. Sanders, Fred M. Roberts 2008-6-17 35476 Orange Peninsular Range; Santa Ana Mountains: Lomas de Santiago, Agustine staging area near Limestone Canyon Rd gate at Santiago Canyon Road (Black Star Canyon 7.5'Q) 259 Comment
  CAS-BOT-BC197030  Echinochloa colona Ira L. Wiggins 1965-10-24 20295 Orange On S side of Yorba Linda Blvd. 1/4 mi. E of State College Blvd., Fullerton Comment
  IRVC27752  Echinochloa crus-galli Mark A. Elvin 2004-5-2 3426 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7km (air) NNW UC Irvine campus center. Southern Coastal 3 Comment
  RSA696595  Echinochloa crus-galli R. H. McArthur 1934-5-10 s.n. Orange E. of Fairview roadside. Comment
  UCR2340  Echinochloa crus-galli F. M. Reed 1920-8-27 4498 Orange Coastal Plain, roadside north of Orange 61 Comment
  RSA184075  Echinochloa crus-galli I. L. Wiggins 1965-10-5 20325 Orange [Near Fullerton.], [33 deg 52'02N, 117 deg 52'30W Comment
  RSA50  Echinochloa crus-galli Thos Howell 1927-7-18 424 Orange Santa Ana River, Rancho Santa Ana. 152 Comment
  RSA794758  Echinodorus berteroi Justin M. Wood, Dustin M. Ray 2010-10-1 2775 Orange Santa Ana Canyon: Santa Ana River plus/minus 1 mi downstream of Gypsum Canyon Bridge, just upstream of large commercial development. Near drain outflow from Flood Control Levee on south side of channel. 110 Comment
  RSA800668  Eclipta prostrata Justin M. Wood 2010-9-29 2753 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
  SBBG104111  Ehrendorferia chrysantha B. Pitzer, S. Hemstreet 1992-5-21 1948 Orange St Hwy 74, 1 mi uphill from the 2000 ft marker, and on left ca. 1 mi on old paved Rd 762 Comment
  RSA731949  Elatine californica Fred M. Roberts, Carol A. Roberts 1991-5-22 4801 Orange San Joaquin Hills: Upper Laguna Cyn., Upper Laguna Lake, c.a. 3.6km N by road of El Toro Rd. & 5km ENE Signal Peak. 118 Comment
  UCR218616  Eleocharis coloradoensis Robert DeRuff 2008-1 575 Orange South Coast, Upper Newport Bay, between Mariner's Drive and 23rd St. 12 Comment
  RSA603303  Eleocharis montevidensis Scott D. White, B. Leatherman 1997-1-12 5332 Orange East of San Juan Capistrano: San Juan Creek between Highway 74 bridge and Mission Vieja site, i.e. ca. 2 to 4 miles E of I-15 / Highway 74 junction. 46 Comment
  UC1116258  Eleocharis montevidensis F. R. Fosberg 1931-6-21 748 Orange Silverado Canyon Santa Ana Mountains Comment
  POM12446  Eleocharis palustris Phillip A. Munz 1922-9-2 6354 Orange Ponds in Laguna Canyon 46 Comment
  RSA708228  Eleocharis palustris Fred M. Roberts, Robert L. Allen, Chris Barnhill, Carol A. Roberts 2005-4-10 6164 Orange Costa Mesa: Fairview Park, west of north end of Canyon Drive, c.a. 0.2km WNW Marison Special Education Center (Canyon Sch. on topos). 24 Comment
  RSA731969  Eleocharis palustris A. C. Sanders, Fred M. Roberts 2008-4-8 34734 Orange Peninsular Range: Lomas de Santiago, Loma Ridge, head of Hicks Canyon. S of Santiago Reservoir. 351 Comment
  RSA0117550  Eleocharis rostellata L. M. Booth 1932-6-4 1151 Orange Newport Lagoon. Comment
  RSA743555  Eleusine coracana subsp. africana R. E. Riefner 2004-8-28 4 -407 Orange City of Fountain Valley, Newland Ave. at Edinger St. 14 Comment
  RSA108342  Elymus X gouldii Frank W. Gould 1943-4-17 2100 Orange Railroad siding 7 miles northeast of Amahim. Comment
  SEINET3129036  Elymus condensatus W. B. Crockatt sn Orange Capistrano Valley Comment
  RSA724034  Elymus repens R. E. Riefner 2005-10-1 5 -704 Orange City of Costa Mesa, South Coast Dr. at Susan Rd. 16 Comment
  RSA221019  Encelia californica E. W. Lathrop 1966-3-23 6082 Orange Skyline Drive between Tin Mine Canyon and Black Star Canyon, 6 miles W of Corona, Santa Ana Mts. 427 Comment
  IRVC653  Encelia californica B. T. Gittins, R. Hobson 1965-4-10 Orange Comment
  RSA0037061  Encelia californica Darren Day, Hal Willis 1984-4-28 009 Orange Growing at the side of Laguna Canyon Rd. exactly 2.5 mi outside of the city limits, heading north. Comment
  RSA734682  Encelia farinosa A. C. Sanders, Fred M. Roberts 2008-5-6 35215 Orange Lomas de Santiago, lower Hicks Canyon near Irvine Ranch gate and road junction to cement plant 180 Comment
  UCR220969  Epilobium canum Dick Newell, Don Millar 2010-8-3 31 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, One Cactus Trail, 1/4 mile west of Limestone Ridge Rd., 0.88 mi. west of Santiago Canyon Rd. 409 Comment
  CAS-BOT-BC166350  Epilobium canum subsp. canum John Thomas Howell 1927-7-26 2842 Orange SE. fork of Claymine [Canon] Canyon, n. Santa Ana Mts. 304 Comment
  POM200869  Epilobium canum subsp. canum Carl B. Wolf 1933-8-24 5384 Orange Santa Ana Mountains; Along road S of Bedford Peak on way to Santiago Peak. 1067 Comment
  RSA717047  Epilobium ciliatum Fred M. Roberts 2005-10-3 6290 Orange San Juan Capistrano: San Juan Creek, La Novia Road bridge to 100m E of bridge, 1.4km E Mission San Juan Capistrano. 27 Comment
  POM201877  Epilobium ciliatum subsp. ciliatum L. M. Booth 1932-6-28 1212 Orange Bolsas Marsh. Comment
  POM201878  Epilobium ciliatum subsp. ciliatum L. M. Booth 1932-6-4 1145 Orange Newport Lagoon. Comment
  RSA588523  Epilobium ciliatum subsp. ciliatum M. B. Dunkle 1934-6-18 3982 Orange San Juan Canyon; Southern Coastal 305 Comment
  RSA799940  Epilobium pygmaeum Justin M. Wood 2011-6-28 4303 Orange South Coast: City of Costa Mesa. Fairview Park, just WNW of Marison Special Education Center. Just W of parking area. 25 Comment
  RSA698281  Epilobium watsonii Elisabeth Norland 1929-1 s.n. Orange Santa Ana River, near Santa Ana. Comment
  POM210924A  Epipactis gigantea L. M. Booth 1932-6-4 1150 Orange Newport Lagoon. 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
  RSA554213  Eragrostis pectinacea Tim Hartz 1990-11-19 s.n. Orange Irvine, U. C. South Coast Field Station, near the U. C. Irvine Campus. Comment
  RSA430  Eremocarpus setiger J. T. Howell 1927-9-24 742 Orange Santa Ana Botany Garden 152 Comment
  RSA697580  Eremocarpus setiger Minor Warne 1934-5-19 s.n. Orange Roadside Forks Trabuco and El Toro Rd. Comment
  RSA0121310  Eriastrum sapphirinum subsp. dasyanthum C. W. Tilforth, Annia Kowalishen 1977-6-15 1340 Orange On Rancho Santa Ana property, north side of Santa Ana Canyon. 183 Comment
  RSA0108901  Eriastrum sapphirinum subsp. sapphirinum Rosemarie Zimmermann 1963-6-8 298 Orange Off State Hwy 18, on Oak Ridge Estates Rd. About 7 mi. E. of Hwy 101& El Toro. Near O'Neil Park. 610 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
  RSA759255  Ericameria cuneata Robt Allen, Reginald Durant 2008-5-16 s.n. Orange Modjeska Peak. W Facing slope within 2 meters of the access road up Modjeska Peak. Approximately midway between the peak's south-facing slope and the sharp bend in extreme N end of the road. 1643 Comment
  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
  CHSC346  Ericameria linearifolia S. Westerberg 1938-3-25 Orange Santa Ana. Comment
  SD28142  Ericameria pachylepis Carl B. Wolf 1931-10-30 2943 Orange Rancho Santa Ana. 206 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
  POM201792  Ericameria palmeri var. pachylepis L. M. Booth s.n. Orange Newport Beach Comment
  RSA0126613  Ericameria palmeri var. pachylepis Fred M. Roberts 2012-4-27 7537 Orange Lomas de Santiago: Loma Ridge, west of SR 241, tributary to Las Flores Cyn., near East Loma Ridge Road, 1.9 km SW Irvine Lake Park Campground & 1.2 km ESE Orange Co. Emergency Operations Center (Hill 1311). 350 Comment
  RSA843  Ericameria palmeri var. pachylepis J. T. Howell 1927-9-24 748 Orange Santa Ana Botany Garden 152 Comment
  RSA5305  Ericameria parishii B. D. Stark 1933-1-5 4498 Orange 2 mi. so. of summit of skyline Drive on road along ridge to Santiago Peak. Santa Ana Mts. 1067 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
  RSA842  Ericameria pinifolia J. T. Howell 1927-10-23 770 Orange On road to Aliso Canyon Rancho Santa Ana. 152 Comment
  UCSB48042  Erigeron canadensis Roberts, Fred 1981-9-26 Orange Newport Beach: Pacific Coast Highway, 0.3km W Newport Blvd.; 0.4 km. SE Bench Mark 10 3 Comment
  RSA7463  Erigeron foliosus C. B. Wolf 1933-8-24 5382 Orange Santa Ana Mountains; Along main divide near Bedford Peak. 1067 Comment
  UCR261718  Erigeron foliosus Dick Newell, Judy Booth 2014-5-15 372 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, Maple Springs Rd./Silverado Canyon Rd., 0.87 road miles east of the lower Maple Springs gate 623 Comment
  RSA443826  Erigeron foliosus var. stenophyllus Gordon Marsh, Karlin G. Marsh 1978-5-20 s.n. Orange Coal Canyon, Santa Ana Mts. 152 Comment
  RSA611A  Eriodictyon crassifolium J. T. Howell 1927-6-26 233 Orange Claymine Canyon near Sierra Peak 213 Comment
  SJSU8878  Eriodictyon crassifolium H. E. McMinn 1935-6-22 3929 Orange Ridge above Clay Mine Canyon, N end of Santa Ana Mts Comment
  SD247658  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]. 456 Comment
  RSA749687  Eriogonum elongatum A. C. Sanders, Fred M. Roberts 2008-7-16 35829 Orange Lomas de Santiago, along road in lower Limestone Canyon, near junction with Harding Truck Trail 290 Comment
  UCR250138  Eriogonum elongatum Dick Newell, Judy Booth 2013-12-25 347 Orange Peninsular Range; Santa Ana Mtns., Maple Springs Road, Cleveland National Forest, at end of paved roadway 899 Comment
  RSA393516  Eriogonum fasciculatum M. B. Dunkle 1933-4-9 3271 Orange Dana Point. Comment
  UCR222389  Eriogonum fasciculatum Mark A. Elvin 2003-1-26 2243 Orange South Coast, Irvine, UC Irvine Open Space Preserve, NE side, between core of UCI campus (E Peltason Dr.) and Hwy 73 69 Comment
  IRVC26729  Eriogonum fasciculatum subsp. foliolosum Peter A. Bowler 2003-4-26 s.n. Orange UC San Joaquin Freshwater Marsh Reserve; bluffs along NW edge of marsh. Southern Coastal 9 Comment
  SEINET6418403  Eriogonum fasciculatum var. fasciculatum Lott, Velasco, Pinkava 1966-8-22 2557 Orange 1/2 miles south of Dana Point Comment
  CAS-BOT-BC249949  Eriogonum fasciculatum var. foliolosum Helen D. Geis 1902-1-1 524 Orange Santiago Cr. Comment
  RSA542525  Eriogonum fasciculatum var. foliolosum Fred M. Roberts 1988-5-13 3971 Orange Lomas de Santiago: Loma Ridge, Upper Limestone Canyon near spring, 2.3 km NW Bolero Lookout. 439 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
  RSA7391  Eriogonum fasciculatum var. polifolium Carl B. Wolf 1933-8-24 5402 Orange Summit of Santiago Peak, Santa Ana Mountains. 1732 Comment
  SBBG62090  Eriogonum gracile J. T. Howell 1927-7-16 2791 Orange N side of Santa Ana Cyn 152 Comment
  POM18087  Eriogonum nudum var. pauciflorum P. A. Munz 1923-9-7 7750 Orange Santiago Peak, Santa Ana Mountains. 1646 Comment
  POM2292  Eriogonum parvifolium var. parvifolium D. L. Crawford s.n. Orange Abalone Pt Comment
  RSA761926  Eriogonum saxatile Robt. Allen 2003-6-22 12371 Orange Modjeska Peak, southwestern arm, 0.6 air miles southwest of the summit. 1513 Comment
  CAS-BOT-BC297331  Eriophyllum confertiflorum L. R. Abrams 1901-6-15 1834 Orange Santiago Peak Comment
  POM202177  Eriophyllum confertiflorum L. M. Booth 1932-5-12 1042 Orange Newport Bay. Comment
  UCR252207  Eriophyllum confertiflorum Amanda C. Swanson 2013-4-21 23 Orange Peninsular Range; Santa Ana Mtns., hiking trail across from Tucker Wildlife Sanctuary, less than 0.1 mi. from trailhead 434 Comment
  LA203535  Eriophyllum confertiflorum var. confertiflorum A. M. Johnson; 1932-4-23 4019 Orange Orange Comment
  RSA697670  Erodium botrys Olive Bernice Spears 1932-3-29 s.n. Orange 1/2 mi. W. of Atwood. Comment
  RSA684304  Erodium moschatum Fred M. Roberts, David E. Bramlet 2003-3-13 5602 Orange Donna O Neill Land Conservancy: Flagpole Meadow, upper Shady Cyn. W of Cristianitos Canyon, 1,500m NW Sycamore Gate and 1,220m W Cristianitos Rd. 173 Comment
  CAS-BOT-BC41524  Erysimum capitatum Helen D. Geis 1902-1-1 528 Orange Santiago Creek. Comment
  RSA696171  Erysimum capitatum Keith E. Hoffmaster 1932-4-17 s.n. Orange Santa Ana Mts. [Orange/Riverside Cos] Comment
  RSA722436  Eschscholzia californica Gray 1912-05 s.n. Orange El Modena. 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
  RSA66266  Eschscholzia californica var. peninsularis F. W. Peirson 1923-3-25 3375 Orange Aliso Creek, near Laguna Beach 91 Comment
  UCR198527  Eucalyptus erythrocorys R. E. Riefner Jr. 2007-9-27 07- 414 Orange South Coast, city of Laguna Niguel, along Forbes Road near Crown Valley Parkway, west of Hwy I-5 Comment
  UCR132571  Eucalyptus megacornuta Robert DeRuff 2001-4-16 527 Orange Southern Coast, Newport Back Bay, Shellmaker Island 1 Comment
  UCR50912  Eucalyptus tereticornis Dave Goodward 1987-4-16 6 Orange Irvine Ranch, Boy Scout Camp in Peters Canyon, east of Tustin and c. 1 mi NE of the Irvine Blvd/Myford Road intersection 122 Comment
  POM6266  Eucrypta chrysanthemifolia P. A. Munz, Street, Williams 1919-5-3 2673 Orange Santa Ana River Canyon. Comment
  RSA732086  Eucrypta chrysanthemifolia A. C. Sanders, Fred M. Roberts 2008-3-25 34531 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills. 259 Comment
  RSA751269  Eucrypta chrysanthemifolia A. C. Sanders, Fred M. Roberts 2008-7-16 35869 Orange Lomas de Santiago, Santiago Creek wash at and above the confluence of Hangmans Tree Canyon. 358 Comment
  UCR191025  Eucrypta chrysanthemifolia A. C. Sanders, Fred M. Roberts 2008-4-22 35060 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge c. 1/4 mi. SE of VABM Bee, above Bee Canyon landfill on road from Hicks Canyon Haul Rd. to Limestone Canyon, c. 3.5 miles WSW of Silverado 493 Comment
  UCSC000889  Eucrypta chrysanthemifolia Peter Kamb 1948-6-19 1096 Orange damp rocky base of slide into canyon bottom, Chaparral scrub canyon bottom - Snata Ana Mts., Holy Jim Canyon Comment
  UC537165  Eucrypta chrysanthemifolia var. chrysanthemifolia L. M. Booth 1932-5-19 1063 Orange Newport Beach Comment
  RSA2077  Euphorbia crenulata C. B. Wolf 1931-3-6 1852 Orange Trabuco Canyon, 1.5 mile below Trabuco Camp Grounds, west slope of Santa Ana Mountains. 610 Comment
  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
  RSA173967  Euphorbia misera Percy C. Everett 1963-9-25 33210 Orange Dana Point 61 Comment
  SD126575  Euphorbia misera Virginia S. Moran, Karen L. Miner 1989-1-29 Orange city of Newport Beach, Corona del Mar State Beach, Inspiration Point, on SSW-facing sandy ocean bluff 29 Comment
  SBBG128746  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 Sts 35 Comment
  SD152866  Euphorbia peplus Steve Boyd, Tim Ross 1992-5-19 7439 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness area. Western edge of wilderness in Lucas Canyon from crossing of creek by Lucas Canyon Trail, downstreem to confluence with Aliso Canyon (mak 1/06) 270 Comment
  UCR103162  Euphorbia peplus Scott D. White 1997-3-28 4849 Orange Santa Ana Mountains, Above Modjeska Canyon, proposed water tank site. 488 Comment
  UCD142472  Euphorbia peplus R. Townsend 1939-12-28 152 Orange Yorba Linda. Comment
  UCR191355  Euphorbia polycarpa A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34642 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 330 Comment
  IRVC17085  Euphorbia serpyllifolia var. hirtula A. B. McGee 1980-9-9 Orange San Diego Creek Channel, adjacent to San Joaquin Freshwater Marsh. Irvine Comment
  JEPS52425  Euphorbia spathulata Alice King Apr 1908 Orange Santa Ana Mts. 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
  RSA184138  Euphorbia supina I. L. Wiggins 1965-7-11 20355 Orange Flower bed at southeast corner of Letters and Sciences Building, California State College at Fullerton campus, Fullerton. Comment
  RSA944  Euthamia occidentalis J. T. Howell 1927-10-29 777 Orange Bryant Ranch near Long Beach. 15 Comment
  SD255109  Euthamia occidentalis R. F. Thorne 1977-11-21 49982 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp. Comment
  UCR192227  Festuca microstachys A. C. Sanders, Fred M. Roberts 2008-5-6 35259 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
  SD127873  Festuca perennis Richard Marin 1971-5-11 M 71 83 Orange Corner of MacArthur Blvd. and University Drive, Irvine 0 Comment
  RSA708733  Ficus carica Fred M. Roberts, Robert L. Allen, Chris Barnhill 2004-8-21 6118 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
  UCR241042  Ficus carica Robert DeRuff 2009-1 455 Orange South Coast, Upper Newport Bay, above Back Bay Dr. at Eastbluff North 7 Comment
  IRVC29790  Ficus carica Mark A. Elvin, Dean Kelch 2006-12-9 5315 Orange Irvine; San Diego Creek, edge of San Joaquin Marsh, beside University Dr., between Campus Dr. and Hwy 73. Southern Coastal 3 Comment
  CAS-BOT-BC474724  Ficus microcarpa R. E. Riefner, Jr. 2014-6-21 14 -186 Orange City of Laguna Beach, N side of North Coast Hwy near intersection with Cliff Dr. 10 Comment
  CAS-BOT-BC487556  Ficus microcarpa R. E. Riefner, Jr. 2014-2-24 14 -66 Orange City of Dana Point, W ca 0.1 mi from Island Way along Dana Point Harbor Dr., cliff immediately S of Santa Clara Ave. and Amber Lantern St. 11 Comment
  CAS-BOT-BC502094  Ficus microcarpa R. E. Riefner, Jr. 2015-8-30 15 -380 Orange City of Anaheim, Pearson Park, SE section of park, N of N. Helena St, and W. Cypress St., near jct. of N. Lemon St., and W. Cypress St. 44 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
  CAS-BOT-BC474739  Ficus rubiginosa R. E. Riefner, Jr. 2015-8-29 15 -369 Orange City of Rancho Santa Margarita, Trabuco Marketplace, Rancho Santa Margarita Blvd. at Plano Trabuco 363 Comment
  RSA542432  Filago gallica Fred M. Roberts 1988-4-10 3909 Orange Lomas De Santiago: Loma Ridge, 1.0 kilometer N Bolero Lookout. 415 Comment
  RSA797822  Filago gallica R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49811 Orange Santa Ana Mountains: Trabuco Canyon Comment
  CHSC35808  Foeniculum vulgare James Henrickson 1972-10-21 8053 Orange Eastern Anaheim, 2 blocks E. of Imperial Hwy. Along La Palma Ave., just N. of Santa Ana River. 60 Comment
  SEINET8465144 Image available Foeniculum vulgare Virginia Carlson 1967-10-11 Orange Near eastern boundary of Fullerton Golf Course north of Bastanchury Road. Comment
  UCR237931  Foeniculum vulgare Mark A. Elvin 2003-2-2 2257 Orange South Coast, San Joaquin Marsh, UCI campus SSE of intersection of Jamboree Blvd. and Campus Dr. 2 Comment
  HSC87010  Frangula californica Reid Moran 1975-7-18 22596 Orange Bottoms of Upper Trabuco Canyon, Santa Ana Mtns. 725 Comment
  LA207685  Frangula californica P. C. Everett; 1935-6-17 7137 Orange Santa Ana Mountains, Coldwater Canyon, 1/2 mi. above Glen Ivy Resort 457 Comment
Read comments
Jan 23 2015
  LA207703  Frangula californica W. E. Pequegnat; August 1937 sn Orange Santa Ana Mountains, Santiago Peak 1706 Comment
  CAS-BOT-BC63071  Frangula californica subsp. californica P. C. Everett 1935-6-17 7137 Orange Santa Ana Mts., Coldwater Canyon, 1/2 mi. above Glen Ivy Resort. 457 Comment
  CAS-BOT-BC63073  Frangula californica subsp. californica John Thomas Howell 1927-6-26 2605 Orange Claymine Canyon, n. Santa Ana Mts. 457 Comment
  CAS-BOT-BC63074  Frangula californica subsp. californica Reid Moran 1975-7-18 22598 Orange Common near Yaeger Mine, upper Trabuco Canyon, Santa Ana Mountains. 725 Comment
  SBBG26924  Frangula californica subsp. californica P. C. Everett 1936-9-19 Orange Silverado Cyn in vicinity of Forest Service Rd Gate Comment
  CAS-BOT-BC53334  Frangula californica subsp. cuspidata Carl B. Wolf 1933-8-24 5391 Orange Santa Ana Mts. Summit of Santiago Pk. 1731 Comment
  RSA186312  Frankenia grandifolia Joseph A. Ewan 1932-7-28 7701 Orange Corona Del Mar Comment
  RSA391394  Frankenia grandifolia Albert J. Perkins 1909-7-4 s.n. Orange Arch Beach. Canon near beach. Comment
  RSA0039580  Frankenia grandifolia Elbert Benjamine 1929-5-14 239 Orange Sunset Beach. Comment
  RSA80981  Frankenia grandifolia var. campestris Raymond J. Dobbs 1924-7-3 5391 Orange Sea bluff at Laguna Beach Comment
  RSA81007  Frankenia grandifolia var. campestris F. W. Peirson 1924-8-29 5072 Orange roadside 4 miles south of Santa Ana. Comment
  CAS-BOT-BC223804  Frankenia salina Joseph Andorfer Ewan 1932-7-28 7701 Orange Corona del Mar Comment
  RSA768507  Frankenia salina Justin M. Wood 2009-12-1 1394 Orange Santa Ana River: marsh just upstream of Pacific Coast Highway. 0 Comment
  UC1122123  Frankenia salina A. Lewis Apr 1934 390 Orange Celery Corona Quad. 0 Comment
  RSA696741  Franseria bipinnatifida Minor Warne 1934-04 s.n. Orange Corona Del Mar Comment
  RSA554469  Frasera parryi Don Pendleton 1992-5-16 92 -18 Orange Cleveland National Forest, NW of El Cariso, on trails near Flacoln Group Camp. 823 Comment
  RSA0042150  Fraxinus dipetala Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49687 Orange Northern Santa Ana Mountains: Sierra Peak. [locality information from field label; note on newspaper 'N slope Pleasant's Pk, 1.5 mi. S Beek's Place]. 900 Comment
  RSA1456  Fraxinus dipetala E. R. Johnson 1929-4-11 1257 Orange Sierra Peak Trail. Comment
  CAS-BOT-BC538093  Fraxinus uhdei R. E. Riefner, Jr. 2014-11-28 14 -408 Orange City of Newport Beach, SW corner Jamboree Rd. at MacArthur Blvd 16 Comment
  CDA23146  Fraxinus uhdei Mark A. Elvin, D. G. Kelch 2006-12-9 5304 Orange Southern Coastal; Newport Backbay; Big Canyon, lower end. Comment
  UCR192976  Fraxinus uhdei A. C. Sanders, Fred M. Roberts 2008-6-17 35464 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Agustine staging area near Limestone Canyon Rd. gate at Santiago Cyn Rd. 260 Comment
  RSA1491  Fritillaria biflora E. R. Johnson 1929-4-11 s.n. Orange Sierra Peak Trail. 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
  RSA753421  Fritillaria biflora var. biflora D. E. Bramlet 2008-4-28 4246 Orange East Fort of Upper Weir Cyn., on the north side of the existing access road. The site is found 1.22km east of the main Cyn. & 122m west of the upper boundary of Gypsum Cyn. 406 Comment
  RSA201607  Fumaria parviflora Unspecified 1969-3-2 s.n. Orange East of Trabuco and Yale roads 91 Comment
  RSA458580  Funastrum cynanchoides var. hartwegii M. B. Dunkle 1933-5-30 3574 Orange Santa Ana Canyon Comment
  RSA553112  Funastrum cynanchoides var. hartwegii Fred M. Roberts Jr. 1989-5-9 4343 Orange Costa Mesa; Fairview Park, Just west of end of Canyon Drive, 0.1 km W Canyon School. 24 Comment
  RSA565  Funastrum cynanchoides var. hartwegii J. T. Howell 1927-7-24 469 Orange Claymine Canyon, near Sierra Peak 152 Comment
  RSA761937  Funastrum cynanchoides var. hartwegii Richard Newell 2005-8-23 s.n. Orange San Joaquin Hills, Crystal Cove State Park, about one-quarter mile (0.23 mi) above the parking lot s upper gate & trail head to the park. 88 Comment
  UCR192724  Galinsoga parviflora A. C. Sanders, Fred M. Roberts 2008-5-6 35226 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hicks Canyon, just above tollway (Hwy 241) crossing on Irvine Haul Rd., near debris basin 216 Comment
  RSA700193  Galium angustifolium L. C. Hull 1934-4-24 s.n. Orange Trabuco Canyon. Comment
  SEINET7067519  Galium angustifolium A. G. Vestal 1947-6-12 s.n. Orange Upper San Juan Canyon on Route 74 to Lake Elsinore in Cleveland National Forest. Coordinate datum: NAD27. UTM Zone 11, 452352mE, 3716538mN. Comment
  HSC19777  Galium angustifolium subsp. angustifolium J. W. Johnson 1961-3-29 Orange Newport Beach, slope overlooking Upper Newport Bay. Comment
  POM367704  Galium angustifolium subsp. angustifolium Albert J. Perkins 1912-6-8 s.n. Orange Foothills, north of Laguna Beach. Comment
  POM367705  Galium angustifolium subsp. angustifolium Albert J. Perkins 1913-4-29 s.n. Orange Trabuco Canyon. Comment
  RSA33791  Galium angustifolium subsp. angustifolium N. C. Cooper 1944-6-4 1372 Orange San Juan Canyon. 305 Comment
  RSA7473  Galium angustifolium subsp. angustifolium Carl B. Wolf 1933-8-24 5397 Orange Summit of Santiago Peak, Santa Ana Mountains. 1732 Comment
  RSA367701  Galium angustifolium subsp. angustifolium E. Crow 1929-4-7 323 Orange Hidden Canyon, W. of Corona. Comment
  UCR193347  Galium parisiense A. C. Sanders 2008-5-28 35436 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Bee Flat at mouth of Limestone Canyon 264 Comment
  POM47660  Galium porrigens F. W. Peirson 1924-5-31 4665 Orange 5 miles southeast of Laguna Beach Comment
  UCR191229  Galium porrigens A. C. Sanders, Fred M. Roberts 2008-4-22 35042 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, valley at south end of Loma Ridge and at head of Limestone Canyon, c. 2.5 miles SW of Silverado, above spring shown on topo map 457 Comment
  UC1543098  Gamochaeta pensylvanica Donald G. Nelson 1936-5-29 427 Orange by fence enclosing orange orchard J. R. Schofield Ranch (on S. Grand Ave., the main highway s of Buena Park); , S. Grand Ave. Comment
  RSA124724  Garrya flavescens E. K. Balls, P. C. Everett 1957-11-25 22847 Orange 1.1 mile E of Silverado 884 Comment
  UC1080593  Garrya flavescens E. K. Balls and P. C. Everett 1957-11-25 22847 Orange 1.1 mi e Silverado 883 Comment
  UCR108316  Garrya flavescens Steve Boyd, B. O'Brien 1998-1-13 10075 Orange Santa Ana Mtns, N end of range, head of Tin Mine Canyon along Main Divide Road (3S04) c. 1.8 mi south of Oak Flat 884 Comment
  CAS-BOT-BC192123  Garrya fremontii A. M. White 1974-6-2 74 -671 Orange 20 mi, E. of Santa Ana. North of Silverado 1005 Comment
  SEINET179445 Image available Gastridium phleoides L. M. Booth 1932-5-19 1082 Orange Newport Bay Comment
  POM255092  Gaura odorata E. Johnson 1940-8-15 s.n. Orange Kokke estate, I.5 miles north of Placentia. Comment
  CDA5232  Gaura sinuata E. Dudley Aug 1939 Orange 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
  RSA702805  Geranium carolinianum D. E. Bramlet, F. M. Roberts 2003-3-27 3357 Orange Donna O Neill Reserve. 152 m. W of Cristianitos Rd. and 1.4 km. N of the E-W access road. 113 Comment
  UCR235520  Geranium incanum var. multifidum R. E. Riefner Jr. 2007-4-28 07- 189 Orange South Coast, city of Newport Beach Newport Bay, North Star Beach, vicinity of Morning Star Lane 2 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
  RSA470122  Gilia angelensis Anstruther Davidson 1910-03 2474 Orange Corona Del Mar. Comment
  RSA734014  Gilia angelensis A. C. Sanders, Fred M. Roberts 2008-4-22 35061 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago, Loma Ridge c. 1/4 mi. SE of VABM Bee, above Bee Canyon landfil on road from H icks Canyon Haul Rd. to Limestone Canyon, c. 3.5 miles WSW of Silverado. 493 Comment
  RSA734815  Gilia angelensis A. C. Sanders, Fred M. Roberts 2008-3-25 34574 Orange Saddle on ridge near head of Weir Canyonm, 5.3 miles ENE of Villa Park, 3.1 mi. N of (Santiago Reservoir) Irvine Lake. 405 Comment
  RSA758897  Gilia capitata A. C. Sanders, T. B. Salvato 2008-5-13 35339 Orange Lomas de Santiago, Santiago Canyon at mouth of Hangman Tree Canyon and lower Hangman Tree Cyn, c. 1/2 mile below Modjeska Canyon confluence. 366 Comment
  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
  SEINET272170  Gilia capitata subsp. abrotanifolia G. K. Helmkamp, E. A. Helmkamp 1997-4-24 1660 Orange Cleveland National Forest ; Cleveland National Forest 1.6 mi. SE of Ortega Hwy (CA-74) on Rd. 7-S14. UTM 10km cell: MH-5E 1N. San Juan Hot Spring 549 Comment
  RSA612342  Glycyrrhiza lepidota L. C. Wheeler 1932-7-9 942 Orange Santa Ana River 5 miles below Prado. 152 Comment
  RSA7326  Glycyrrhiza lepidota E. R. Johnson 1933-7-6 5169 Orange 1/2 mile south of Mexican houses, Rancho Santa Ana 122 Comment
  RSA657737  Gnaphalium californicum Ken Greby 1985-5-17 24 Orange On hillsides behind PG and E substation located 2 km. SE from Laguna Canyon Rd., on El Toro Rd., adjacent to Leisure World. Comment
  RSA734849  Gnaphalium californicum A. C. Sanders, Mitch Provance 2008-5-20 35411 Orange Lomas de Santiago area, Santiago Creek Canyon, c. 3/4 mile below Modjeska Canyon confluence 345 Comment
  UCR223982  Gnaphalium californicum Dick Newell, Don Millar 2011-3-1 073 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Hicks Canyon Haul Road, above Jeffrey Rd. and below Hwy 241 crossing 175 Comment
  RSA679098  Gnaphalium leucocephalum Fred M. Roberts 2003-7-24 5963 Orange San Juan Capistrono: San Juan Creek, c.a. 0.1 km NE La Novia Bridge. Along creek on cobbly sand of wash in open southern willow scrub and mulefat scrub. 27 Comment
  RSA683220  Gnaphalium leucocephalum Scott D. White, Matt Carlton 2003-11-20 9874 Orange Santa Ana Mountain foothills: San Juan Creek in San Juan Capistrano. 37 Comment
  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
  RSA734630  Gnaphalium luteoalbum A. C. Sanders, T. B. Salvato 2008-5-13 35358 Orange Lomas de Santiago, Santiago Canyon above (S of) mouth of Hangman Tree Canyon, just below Modjeska Canyon confluence 366 Comment
  RSA696919  Gnaphalium microcephalum Minor Warne 1934-5-19 s.n. Orange Trabuco. Comment
  UCR208624  Gnaphalium palustre O. F. Clarke 2004-5-29 s.n. Orange Santa Ana River Canyon, Santa Ana River on the west side of Featherly Park 110 Comment
  IRVC29561  Gnaphalium stramineum Mark A. Elvin, P. A. Bowler 2006-5-13 4861 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7km (air) NNW UC Irvine campus center. Southern Coastal 3 Comment
  UCR190987  Gnaphalium stramineum A. C. Sanders, Fred M. Roberts 2008-4-22 34991 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
  UCR194554  Gnaphalium stramineum A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35325 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
  UCR93932  Gnaphalium stramineum B. G. Pitzer 1996-4-30 2800 B Orange San Joaquin Hills, Crystal Cove State Park, south of City of Irvine on State Hwy 1 (Pacific Coast Hwy) 15 Comment
  UCR52299  Grindelia camporum B. G. Pitzer, D. C. Hawks 1986-12-17 0382 A Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, on Santiago Cyn Rd., c. 1.0 mi SW of [Irvine Lake] Santiago Reservoir 305 Comment
  UC455831  Grindelia hirsutula I. J. Condit 1908-7-25 Orange Huntington Beach Comment
  CAS-BOT-BC314525  Gutierrezia californica Helen D. Geis 1902-1-1 573 Orange Santiago Cr. Comment
  RSA734692  Gutierrezia californica A. C. Sanders, Fred M. Roberts 2008-6-17 35503 Orange Weir Canyon, Windy Ridge Rd., saddle on ridge at head, above the Eastern Transportation Corridor 400 Comment
  RSA750926  Gutierrezia californica A. C. Sanders, Fred M. Roberts 2008-7-3 35698 Orange 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. 275 Comment
  RSA868  Gutierrezia californica J. T. Howell 1927-11-6 802 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  CAS-BOT-BC302136  Gutierrezia sarothrae John Thomas Howell 1927-9-24 3111 Orange Hills on n. side of Santa Ana Canon [Canyon] 213 Comment
  UCR26139  Haplopappus menziesii John C. Roos 1949-10-1 4683 Orange South Coast, Doheny Beach 0 Comment
  RSA0066582  Harpagonella palmeri R. E. Riefner 1995-3-29 95 -62 Orange San Clemente State Beach. Comment
  RSA663158  Hazardia squarrosa var. grindelioides R. E. Riefner 2000-8-3 20 -710 Orange NCCP North Ranch Policy Plan Area. E of Main Divide Road and Windy Ridge. 534 Comment
  RSA743465  Hedera helix Fred M. Roberts, Carol A. Roberts 2008-9-28 7115 Orange Dana Point: Dana Point Headlands, CNLM Preserve, near Strands Road Gate, 0.8km WNW Marine Institute, Dana Point Harbor. 65 Comment
  RSA585059  Hedypnois cretica D. Atwood 1993-3-28 17716 Orange Bolsa Chica Ecological Reserve, California Dept. of Fish and Game. Sea level. 0 Comment
  RSA749471  Hedypnois cretica Fred M. Roberts, Linda Farley 2008-3-28 6826 Orange Santa Ana Mtns.: Upper Weir Cyn., Irvine Ranch Conservancy, 3.3 km ENE Robbers Peak on ridge north of canyon. 427 Comment
  UC774607  Hedypnois rhagadioloides C. B. Wolf 1938-5-2 9406 Orange vacant lot on e side of 1200 block Francis St.; City of Fullerton 60 Comment
  RSA872  Helenium puberulum J. T. Howell 1927-7-15 402 Orange Santa Ana River, Rancho Santa Ana [Botanic Garden] 152 Comment
  UC537124  Helenium puberulum Lawrence M. Booth 1932-7-19 1285 Orange Bolsas Marsh Comment
  CAS-BOT-BC402190  Helianthemum scoparium R. F. Thorne; E. W. Lathrop; W. Wisura 1977-4-27 49679 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. 457 Comment
  LA204752  Helianthemum scoparium W. Pequegnat; 1936-9-8 102 Orange Santa Ana Mountains, Ortega Rd Comment
  UCR250859  Helianthemum scoparium Dick Newell, Don Millar 2014-2-18 354 Orange Peninsular Range; Santa Ana Mtns., mouth of Fremont Canyon wash at MWD Road crossing 201 Comment
  UCSB18935  Helianthus annuus Cummings, Bob 1963-5-11 Orange U.S. Highway 101 alternate, 2 miles NW of San Clemente 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
  POM256708  Helianthus gracilentus W. Pequegnat 1940-6-15 s.n. Orange Holy Jim Trail 1220 Comment
  RSA0037205  Heliotropium curassavicum Darren Day, Hal Willis 1984-5-17 025 Orange This plant was found growing 2.3 miles outside of the city of Laguna Beach, on Laguna Canyon Rd. heading north, on the east side of the road. Comment
  POM369737  Heliotropium curassavicum var. oculatum F. R. Fosberg 1930-7-10 3196 Orange Anaheim Landing. [Los Angeles Co. on label] 5 Comment
  POM369761  Heliotropium curassavicum var. oculatum F. R. Fosberg 1931-6-19 5154 Orange Carbon Canyon, Puente Hills. Comment
  RSA233017  Heliotropium curassavicum var. oculatum Christopher Davidson, Gerald L. Benny 1971-6-15 1556 Orange Carbon Canyon, 1 mile SW of Carbon Canyon mineral spring. Comment
  RSA0008438  Hemizonia australis Fred M. Roberts 1985-9-17 2263 Orange Irvine: Lot between Walnut Ave. Harvard Ave. and Peter's Creek Channel. 20 Comment
  POM360277  Hemizonia fasciculata L. C. Wheeler 1932-6-25 861 Orange Newport Bay. 6 Comment
  RSA678737  Hemizonia fasciculata Fred M. Roberts, Carol A. Roberts, Robert Allen 2003-5-11 5858 Orange Dana Point Headlands: hilltop, 0.6km SSW Richard Henry Dana School south of Pacific Coast Highway and north of Scenic Drive. 73 Comment
  RSA704074  Hemizonia paniculata D. E. Bramlet, Fred Roberts 2003-5-8 3432 Orange Donna O'Neill Reserve. SE area of the reserve 305m west to Cristianitos Rd. and 762m south of the E-W access road. 101 Comment
  CAS-BOT-BC26068  Hemizonia parryi subsp. australis David D. Keck 1933-9-29 2537 Orange Seal Beach. Comment
  IRVC25435  Hemizonia parryi subsp. australis Fred M. Roberts 1987-7-22 3507 Orange San Diego Creek just above Main Street bridge; Irvine 5 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
  UCR94531  Hemizonia parryi subsp. australis Tony Bomkamp 1995-1 s.n. Orange Rancho Mission Viejo, floodplain of Canada Gobernadora west of Casper Regional Park. 140 Comment
  RSA735169  Heteromeles arbutifolia A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35277 Orange Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir. 300 Comment
  UC860401  Heteromeles arbutifolia C. B. Wolf and B. D. Stark 1932-12-19 4430 A Orange 1/2 mi from Skyline Drive on Firebreak Road to Sierra Peak (Santa Ana Mountains); , Firebreak Road 762 Comment
  UCR131873  Heteromeles arbutifolia J. Mallory, V. McCoy 1995-6-30 6454- 58 Orange Santa Ana Mountains: S-facing slope on Windy Ridge, c. 2.5 mi. south of 91 fwy. Comment
  UCR192076  Heteromeles arbutifolia A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35277 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir 300 Comment
  UCR222879  Heteromeles arbutifolia T. B. Salvato 2010-10-27 5123 Orange South Coast, Dana Point Headlands, Harbor Point Park, south of Scenic Dr. and Cove Rd., beyond the end of Green Lantern St., overlooking Dana Point Harbor 70 Comment
  RSA0072399  Heteromeles arbutifolia Carl B. Wolf, B. D. Stark 1932-12-19 4430 -A Orange Santa Ana Mts: 1/2 mile from Skyline Drive on firebreak road to Sierra Peak. 762 Comment
  RSA0075821  Heterotheca grandiflora Scott D. White, Matt Carlton 2003-11-20 9875 Orange Santa Ana Mountain foothills: San Juan Creek in San Juan Capistrano. 37 Comment
  SD144039  Heterotheca grandiflora Scott D. White 1996-12-20 4639 Orange Santa Ana Mts., above Modjeska Canyon 424 Comment
  UCD150987  Heterotheca grandiflora D. S. Park 2010-4-25 32 -2 Orange Whiting Ranch Wilderness Park, along trail. 226 Comment
  CAS-BOT-BC318902  Heterotheca grandiflora J. Ewan 1931-10-3 s.n. Orange 1/2 mile above La Vida Soda Springs, Carbon Canyon Comment
  CAS-BOT-BC318907  Heterotheca grandiflora Ira L. Wiggins 1966-3-16 20523 Orange Near Orange County refuse dispoasl area Comment
  POM146204  Heterotheca sessiliflora subsp. echioides F. M. Reed 1927-10-14 5502 Orange Summit of Sulfur Slide Hill, Santa Ana Canyon Comment
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May 1 2011
  UCSB48229  Hirschfeldia incana Roberts, Fred 1981-7-8 Orange Rancho Mission Viejo: Calif. Rte. 74, 5.2 km ENE San Juan Capistrano by road 100 Comment
  RSA416  Hoita macrostachya J. T. Howell 1928-7-6 1029 A Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  UC537011  Hoita macrostachya Lawrence M. Booth 1932-7-1 1236 Orange Anaheim Marsh Comment
  RSA798596  Holodiscus boursieri Robert F. Thorne, E. W. Lathrop 1977-5-18 49749 Orange Santa Ana Mountains: summit of Santiago Peak. 1733 Comment
  CAS-BOT-BC150004  Holodiscus discolor var. discolor B. D. Stark 1931-6-20 2248 Orange East fork of Claymine Canyon, north end of Santa Ana Mountains 304 Comment
  RSA12282  Hordeum brachyantherum C. B. Wolf 1934-4-11 5657 Orange Bryant Ranch, east of Long Beach, along Bixby Ave., 0.5 mile west of Hansen Rd. 100 ft N of fence 8 Comment
  POM1305  Hordeum depressum P. A. Munz 1918-5-5 2192 Orange Laguna. Comment
  UCSB52866  Hordeum depressum Roberts, Fred 1983-4-24 Orange Dana Point Headlands; south of Pacific Coast Hwy, 0.4km W Harbor; 0.7km SSW Richard Henry Dana Sch. 79 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
  RSA688979  Hordeum intercedens Fred M. Roberts, Robt. Allen 2003-4-1 5634 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, western slopes of Cristinitos Cyn., 0.16km WSW Gato Gate. Comment
  UCR150377  Hordeum intercedens D. E. Bramlet 1998-5-19 2621 Orange Coastal Plains & Basins/Los Angeles Basin region, San Juan Hills: 4400 ft west of La Pata Ave. and 10,000 ft N of Prima Deshecha Canada. A ridgeline 500 ft east of a small canyon 91 Comment
  UCR158160  Hordeum intercedens Adrian Wolf 1998-4-24 161 Orange South Coast, San Joaquin Hills, Shady Canyon, central part west of main canyon on ridgetop, 2.5 km NE of Signal Peak, 3 km south of Sand Canyon Reservoir 152 Comment
  SEINET11678404  Hordeum murinum J. F. Bright, Wyman, C. 1933-1 8206 Orange DelToro Comment
  CAS-BOT-BC289365  Hordeum murinum subsp. glaucum Ira L. Wiggins 1966-3-19 20537 Orange Irvine Ranch, southeast of U.C. Irvine Comment
  RSA55  Hordeum murinum subsp. leporinum J. T. Howell 1928-3-17 869 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA737485  Horkelia cuneata subsp. puberula D. E. Bramlet 2008-4-28 4250 Orange East fork of Upper Weir Cyn., on the S. side of the existing access road. The site is 1.6km east of the main cyn. and 183m west of the Upper boundary of Gypsum Cyn. 406 Comment
  RSA759250  Hulsea heterochroma Robt Allen, G. Victor Leipzig 2008-6-20 s.n. Orange Upper Silverado Canyon, along Maple Springs Truck Trail, 5.7 road miles up from Maple Springs Forest Gate, 0.8 road miles down from junction with Main Divide Truck Trail. Southwestern end of short road spur. 1313 Comment
  JEPS17473  Hydrocotyle umbellata F. W. Peirson 1924-10-19 5237 Orange Wintersberg Comment
  CAS-BOT-BC312647  Hymenothrix loomisii 1943-12-1 s.n. Orange Costa Mesa Comment
  SBBG125947  Hypericum canariense R. E. Riefner Jr. 2010-6-9 10 -52 Orange McKraken View Trail at San Juan Crk Rd, E of I-5 Freeway; City of San Juan Capistrano 51 Comment
  SD260970  Hypericum canariense R. E. Jr. Riefner 2010-6-9 10 56 Orange City of San Juan Capistrano, La Novia Ave. at Valle Rd. 45 Comment
  RSA685932  Hypochaeris glabra Fred M. Roberts, David E. Bramlet 2003-3-27 5615 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
  SBBG128744  Ipomoea cairica R. E. Riefner Jr. 2012-11-27 12 -563 Orange City of Laguna Beach, S Crescent Beach, Circle Way near Cliff Drive 3 Comment
  SD181694  Isocoma menziesii Scott D. White 1998-10-19 7190 Orange Yorba Linda; ca. 0.5 mile south of Telegraph Canyon between Ohio St. and Fairmont. 149 Comment
  CAS-BOT-BC311671  Isocoma menziesii var. sedoides David D. Keck 1932-9-30 1902 Orange 2 mi. W. of Laguna Beach Comment
  CAS-BOT-BC311672  Isocoma menziesii var. sedoides David D. Keck 1932-9-30 1902 Orange 2 mi. W. of Laguna Beach Comment
  IRVC24537  Isocoma menziesii var. vernonioides J. Johnson 1976-8-10 Orange Newport [Back] Bay. Newport Beach Comment
  POM4695  Isocoma menziesii var. vernonioides D. L. Crawford 1916-8-1 s.n. Orange Beach shore & near hills. 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
  RSA640310  Isocoma menziesii var. vernonioides L. C. Wheeler 1931-6-8 s.n. Orange Balboa Comment
  RSA731649  Isocoma menziesii var. vernonioides Fred M. Roberts 2007-10-29 6630 Orange Laguna Beach: Temple Hill, Nyes Place, ca. 0.2 km S Moulton Meadows Park. 232 Comment
  SD41496  Isocoma menziesii var. vernonioides Edith A. Purer 1932-8-31 4871 Orange Near Route 101 on stabilized sand dunes Comment
  UC1424944  Isocoma menziesii var. vernonioides C. W. Tilforth 1976-10-21 1225 Orange slopes above Santa Ana River Canyon (on Rancho Santa Ana) Comment
  UC1605435  Isocoma menziesii var. vernonioides Steve Boyd and Tim Ross 1994-9-14 8348 Orange Lucas Canyon Trail trail at divide between Aliso Canyon and Lucas Canyon; Southern Santa Ana Mountains, Cleveland N.F., San Mateo Cany 341 Comment
  RSA91276  Isocoma menziesii var. vernonioides F. W. Peirson 1919-11-8 1254 Orange South of Arch Beach, near Laguna Beach Comment
  RSA660590  Isolepis carinata R. E. Riefner 2000-7-10 20 -641 Orange Nature Reserve of Orange County. Los Trancos Canyon, E of Pelican Hill. Comment
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Jul 18 2011
  RSA750904  Isolepis cernua A. C. Sanders, Fred M. Roberts 2008-7-3 35708 Orange Weir Canyon, along Weir Canyon Rd. 1.2 mi. SSE of Walnut Canyon Reservoir, below Upper Blind Canyon Rd. 212 Comment
  RSA94  Isolepis cernua J. T. Howell 1927-7-6 278 Orange Santa Ana River bottom, Rancho Santa Ana 152 Comment
  RSA696234  Isomeris arborea Minor Warne 1934-5-10 s.n. Orange Fairview bluff near Talbert 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
  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
  RSA651865  Jasminum humile Booisseranc s.n. Orange Front of Congressional Church, Breolinda. Comment
  POM201735  Jaumea carnosa L. M. Booth 1932-6-9 1183 Orange Newport Bay. Comment
  SEINET11446674 Image available Jaumea carnosa L. C. Wheeler 1932-6-22 846 Orange Newport Bay 0 Comment
  RSA301965  Jaumea carnosa J. R. Shevock 1972-9-27 2285 Orange Newport Back Bay. 2 Comment
  CAS-BOT-BC101960  Juglans californica Carl B. Wolf 1936-7-8 8103 Orange W. side of Durant St., Santa Ana 30 Comment
  RSA226639  Juglans californica Christopher Davidson, B. Benny 1971-6-15 1555 Orange Carbon Canyon, 1 mile SW of Carbon Canyon mineral spring. Comment
  UCR240199  Juglans californica C. J. Minar 1994-4-16 01 Orange South Coast, Santa Ana, on the bank of Santiago Creek, 0.25 mi. east of Santiago St. and 0.25 mi. west of Amtrack RR bridge, east of I-5 Fwy & south of Garden Grove (22) Fwy 50 Comment
  SBBG128110  Juglans californica R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49613 Orange Ortega Hwy (74), ca. 2.5 mi above San Juan Fire Station; Santa Ana Mtns Comment
  SEINET13942200 Image available Juglans californica Carl B. Wolf 1936-1 8103 Orange West side of Durant Street, Santa Ana. 100 ft. 30 Comment
  SD70810  Juglans californica var. californica Lucille Kempers 1955-3-19 252 Orange Flying Cow Ranch in Carbon Canyon 259 Comment
  UC1135931  Juglans californica var. californica H. E. Norton 1931-3-13 39 Orange Anaheim Corona (Anaheim) Quadrangle (Plot #13) Comment
  SD253482  Juglans hindsii R. E. Riefner Jr. 2011-9-10 11 124 Orange Santa Ana Canyon, I-91 northbound, south side of freeway, located within 100 ft of the Riverside County line. 127 Comment
  RSA22739  Juglans regia Carl B. Wolf 1939-11-29 9545 Orange Orange County Picnic Grounds, Comment
  JEPS66901  Juncus acutus subsp. leopoldii Lawrence M. Booth 1932-5-24 1102 Orange Newport Bay Comment
  RSA286441  Juncus acutus subsp. leopoldii Mary H. O Brien 1976-5-1 s.n. Orange Bolsa Chica Bay, 1/4 mile south of Bolsa Chica State Beach entrance station and 50m east of Hwy 1; Sea level Comment
  UCR261700  Juncus balticus Dick Newell, Don Millar 2014-9-30 386 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Agua Chinon Wash, 0.6 mi. south of Loma Ridge Rd. 279 Comment
  UCR193378  Juncus balticus subsp. ater A. C. Sanders, Mitch Provance 2008-5-20 35395 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, mouth of Hangman Tree Canyon just above confluence with Santiago Creek Canyon, c. 1/2 mile below Modjeska Canyon confluence 366 Comment
  RSA103  Juncus bufonius J. T. Howell 1928-4-14 915 Orange Santa Ana River, Rancho Santa Ana. 152 Comment
  RSA788923  Juncus dubius Fred M. Roberts 1999-6-23 5245 Orange Peninsular Range, Santa Ana Mtns. Region: Lomas de Santiago: tributary to Santiago Creek, ridge between Limestone Cyn, and Santiago Creek wash across from Pancho Canyon, 1.6 km ENE Bolero Spr. and 1.6 km NNW Bolero Lookout. 396 Comment
  UC1543046  Juncus effusus subsp. austrocalifornicus Donald G. Nelson 1935-4-6 244 Orange e of San Juan Capistrano (200-300 ft below main highway, about 4 mi from summit); San Juan Canyon Comment
  UCR217669  Juncus effusus subsp. austrocalifornicus Fred M. Roberts, R. E. Riefner Jr. 2008-5-30 7022 Orange South Coast, Lomas de Santiago, Loma Ridge, Hanging Man's Tree Canyon, along Hanging Man's Tree Canyon Road, c. 0.4 km west of Santiago Canyon Road and 1.23 km north of Bolero Lookout 372 Comment
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Sep 21 2020
  RSA105  Juncus mexicanus J. T. Howell 1927-6-21 187 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA594873  Juncus mexicanus Fred M. Roberts, W. R. Ferren 1991-12-1 4828 Orange Aliso-Wood Canyons Regional Park: Lower Wood Canyon, just above confluence with Alins Canyon, ca. 3.5 kilometers S Multon Peak. 32 Comment
  RSA562612  Juncus patens Steve Boyd, Fred M. Roberts 1992-10-14 7714 Orange Northern Santa Ana Mountains, vicinity of Oak Flats (aka Oat Flats) northeast of the junction of Main Divide Road and Skyline Road, just west of Riverside County line 800 Comment
  RSA734854  Juncus patens A. C. Sanders, Mitch Provance 2008-5-20 35399 Orange Lomas de Santiago, mouth of Hangman Tree Canyon just above confluence with Santiago Creek Canyon, c. 1/2 mile below Modjeska Canyon confluence 366 Comment
  RSA699683  Juncus rugulosus Keith E. Hoffmaster 1935-4-14 s.n. Orange Trabuco creek., 1/4 mi. above CCC camp at Trabuco Oaks, Santa Ana Mts. Comment
  RSA731796  Juncus rugulosus Fred M. Roberts, Sandy Leatherman 2007-11-9 6642 Orange Santa Ana Mtns.: San Juan Canyon along San Juan Creek, 0.2km E community of San Juan Hot Springs. 222 Comment
  UCSB48197  Juncus rugulosus Roberts, Fred 1981-6-26 Orange Santa Ana Mts; Viejo Cyn; 0.5 km N Calif. Rte. 74; 2.7 km E San Juan Guard Station Comment
  RSA754064  Juncus textilis A. C. Sanders, Fred M. Roberts 2008-7-16 35855 Orange Lomas de Santiago, upper Hangmans Tree Canyon 395 Comment
  SEINET3881136  Juncus textilis A. C. Sanders, Fred M. Roberts 2008-7-16 35855 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago, upper Hangmans Tree Canyon (El Toro 7.5').; 0 395 Comment
  RSA794757  Juncus torreyi Justin M. Wood, Dustin M. Ray 2010-10-1 2774 Orange Santa Ana Canyon: Santa Ana River plus/minus 1 mi downstream of Gypsum Canyon Bridge, just upstream of large commercial development. Near drain outflow from Flood Control Levee on south side of channel. 110 Comment
  POM201668  Juncus xiphioides L. M. Booth 836 Orange Santa Ana Canyon. Comment
  UCR174211  Juncus xiphioides A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33046 Orange Peninsular Range; Santa Ana Mtns., San Juan Canyon, from Lower San Juan Picnic Area to c. 1 mile downstream, parallel to Hwy 74 and near Riverside Co. line 396 Comment
  RSA702804  Juniperus californica D. E. Bramlet, F. M. Roberts 2003-3-27 3360 Orange Donna O Neill Reserve. S facing slope of tributary to Cristianitos Cyn., 335 m W of Cristianitos Rd. & 428m NW Ford Rd. 136 Comment
  UC632463  Juniperus californica R. C. Dickson 1939-9-10 Orange five mi e San Juan Capistrano 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
  NY786525  Keckiella antirrhinoides var. antirrhinoides D. C. Michener 1980-6-5 3668 Orange Santa Ana Mountains. San Juan river valley, on terrace near abandoned mine(s). Comment
  NY790204  Keckiella cordifolia S. McCoy 1932-6-3 243 Orange Near Brea Comment
  RSA401705A  Keckiella cordifolia Albert J. Perkins 1923-6-24 s.n. Orange Silverado Canyon Comment
  RSA649976  Keckiella cordifolia Gat Shlomo 1959-5-12 33 Orange Carbon [Canyon] Comment
  SEINET7067517  Keckiella cordifolia A. G. Vestal 1947-6-12 s.n. Orange San Juan Canyon. Coordinate datum: NAD27. UTM Zone 11, 448887mE, 3712881mN. Comment
  UC1011911  Keckiella cordifolia F. W. Pennell and E. M. Harvey 1949-6-29 26806 Orange above San Juan Capistrano (Ortega Highway) 365 Comment
  UCR227631  Keckiella cordifolia Robt. L. Allen 2003-6-22 12288 Orange Santa Ana Mountains, west-facing flank of Santiago Peak, near the saddle between Santiago and Modjeska Peaks, along North Main Divide Road 1523 Comment
  RSA761800  Keckiella cordifolia Robert Allen 2003-6-22 12290 Orange West-facing flank of Santiago Peak, near the saddle between Santiago and Modjeska Peaks, along North Main Divid Road. 1523 Comment
  POM7128  Koeleria macrantha P. A. Munz, L. T. Street, G. Williams 1919-5-3 2633 Orange Santa Ana River Canyon. Comment
  POM7129  Koeleria macrantha P. A. Munz, L. T. Street 1919-5-3 2622 Orange Santa Ana River Canyon. Comment
  RSA679227  Koeleria macrantha Fred M. Roberts 2003-6-25 5943 Orange Santiago peak, north slopes along ridge east of Main Divide truck trail, 0.6km NNW summit. 1605 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
  RSA734810  Koeleria macrantha A. C. Sanders, Fred M. Roberts 2008-3-25 34579 Orange Saddle on ridge near head of Weir Canyonm, 5.3 miles ENE of Villa Park, 3.1 mi. N of (Santiago Reservoir) Irvine Lake 405 Comment
  UCR209381  Koeleria macrantha Fred M. Roberts, Linda Farley 2008-3-28 6824 Orange Santa Ana Mountains, Upper Weir Canyon, Irvine Ranch Conservancy, east fork along ridge just west of SR 241, 3.4 km east of Robber's Peak 437 Comment
  CAS-BOT-BC174783  Koelreuteria bipinnata T. B. Salvato; Katie Kurtz; Mitch Provance 2006-10-15 1903 Orange South Coast: Irvine, San Diego Creek flood control channel, between Campus Drive and Michelson Drive 6 Comment
  UCR236678  Koelreuteria paniculata Fred M. Roberts, Sandra L. Leatherman 2008-9-17 7100 Orange Peninsular Ranges, Yorba Linda: Santa Ana River Canyon, Santa Ana River, 0.7 km W Gypsum Cyn. Rd. bridge, south of La Palma Ave. 107 Comment
  IRVC29794  Koelreuteria paniculata Mark A. Elvin, Dean Kelch 2006-12-9 5320 Orange Irvine; San Diego Creek, edge of San Joaquin Marsh, beside University Dr., between Campus Dr. and Hwy 73. Southern Coastal 3 Comment
  RSA752818  Lactuca serriola A. C. Sanders, Fred M. Roberts 2008-8-7 36001 Orange Weir Canyon at powerline crossing, 1.0 mi. (air) SSE of Walnut Canyon Reservoir 226 Comment
  CAS-BOT-BC340501  Lactuca serriola John Thomas Howell 1927-7-27 2855 Orange Hills on n. side of Santa Ana Canon [Canyon] 152 Comment
  CAS-BOT-BC340502  Lactuca serriola Carl B. Wolf 1932-7-7 3839 Orange Bryant Ranch, Bixby Ave., south edge of field, 100 ft. W. of Hansen Rd., 100 ft. W. of S.E. corner of N.E. 40 of N.E. of Sect. 34 T4S R11W 48 Comment
  SBBG128396  Laennecia coulteri F. M. Roberts, L. A. Caranza 2009-9-23 7162 Orange CNLM Dana Point Preserve, old Marguerite Rd bed just W of the Nature Center and just E of the terminus of Dana Strands Rd, 0.7 km W pier, Dana Point Harbor 73 Comment
  RSA761938  Lagophylla ramosissima subsp. ramosissima Robt Allen, Linnell Allen, Charles Allen 2005-10-9 12530 Orange Los Pinos Potrero, opposite entrance to Falcon Group Camp. 1011 Comment
  RSA0038507  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 1 Comment
  RSA716769  Lagunaria patersonia Fred M. Roberts, Chris M. Barnhill 2004-7-10 6074 Orange Laguna Beach: Heisler Park, 0.14km E Recreation Point just above beach. 619 Comment
  POM202589  Lamarckia aurea L. M. Booth 1932-5-12 1022 Orange Newport Bay Comment
  UCR186588  Lantana camara Robert DeRuff 1996-7-11 499 Orange Southern Coast, Newport Beach, Newport Back Bay, north side of Big Canyon 3 Comment
  CAS-BOT-BC338906  Lasthenia californica Baker 1904-4-1 4088 Orange Anaheim 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
  UC942889  Lasthenia glabrata subsp. coulteri Lewis S. Rose 1949-4-18 49047 Orange Seal Beach Comment
  POM294108  Lasthenia gracilis Lyman Benson 1946-4-27 12056 Orange Corona Del Mar; Drainage area: Pacific Ocean. 15 Comment
  POM48548  Lasthenia gracilis F. M. Reed 1925-5-14 4968 Orange Aliso Canon. Comment
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May 1 2011
  UC484260  Lasthenia gracilis C. B. Wolf 1931-3-6 1847 Orange 1 mi above Trabuco Oaks Trabuco Canyon; Santa Ana Mts. 518 Comment
  SEINET956308  Lathyrus vestitus Scott D. White 1997-1 b- 4698 Orange Above Modjeska Canyon. Proposed water tank site. 427 Comment
  RSA535966  Lathyrus vestitus subsp. alefeldii Fred M. Roberts, Carol A. Roberts 1989-4-7 4265 Orange Aliso-Wood Canyons Regional Park: Upper Wood Canyon, ca. 0.5 km SW Moulton Peak. 102 Comment
  UCSB12895  Lathyrus vestitus var. alefeldii 1962-3-9 Orange 12.2 miles east of San Juan Capistrano on State 74 243 Comment
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Apr 10 2016
  RSA799619  Lavatera cretica Justin M. Wood 2011-4-12 3662 Orange South Coast: City of Costa Mesa. Fairview Park, just WNW of Marison Special Education Center. 24 Comment
  UCR120561  Lavatera olbia O. F. Clarke 1994-6-17 s.n. Orange Laguna Canyon Comment
  RSA699674  Layia platyglossa Keith E. Hoffmaster 1935-4-19 s.n. Orange Santiago can. near Silverado ca., Santa Ana Mountains. Comment
  RSA699675  Layia platyglossa Keith E. Hoffmaster 1935-4-19 s.n. Orange Santiago can. near Silverado ca., Santa Ana Mountains. Comment
  CDA25745  Leonurus sibiricus O. F. Clarke, A. C. Sanders 2008-2-19 s.n. Orange South Coast; Fullerton; weeds at California State University Fullerton Arboretum. Comment
  RSA171015  Lepechinia cardiophylla Robert F. Thorne 1963-7-26 32853 Orange Tin Mine Canyon above Beek s Spring, Trabuco District, Cleveland National Forest. 732 Comment
  UCR231204  Lepechinia cardiophylla A. C. Sanders, T. B. Salvato, Kent Beaman 2011-11-3 39942 Orange Peninsular Range; Santa Ana Mtns., near Pleasants Peak along the Main Divide Truck Trail 1143 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
  POM183940  Lepidium lasiocarpum P. A. Munz 1932-3-29 12191 Orange Costa Mesa. Comment
  JEPS53664  Lepidium lasiocarpum var. lasiocarpum L. M. Booth 1932-5-24 1084 Orange Newport Bay 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
  RSA679088  Lepidium latifolium Fred M. Roberts 2003-7-24 5971 Orange San Juan Capistrono: San Juan Creek, c.a. 0.1 km NE La Novia Bridge. Along creek on cobbly sand of wash in open southern willow scrub and mulefat scrub., 33,30 15 N, 117, 38 44 27 Comment
  UCR203975  Lepidium nitidum D. E. Bramlet, Weena Sangkatavat 2008-3-27 4131 Orange Peninsular Range; Santa Ana Mountains, Bee Canyon, Bowerman landfill site. 528m south of the Bee Canyon access road and 440m west of the active landfill 270 Comment
  UCR179765  Lepidium oblongum R. E. Riefner Jr. 2006-4-8 06- 112 Orange South Coast, San Juan Capistrano (city), San Juan Creek at La Novia Ave. 22 Comment
  IRVC25434  Lepidium pinnatifidum Fred M. Roberts 1987-7-8 3471 Orange San Diego Creek, near San Diego Freeway crossing, 3.2km N UC Irvine Campus center; Irvine 5 Comment
  OBI70646  Lepidium pinnatifidum Louis C. Wheeler 1947-5-4 6476 Orange 4.5 mi S of Santa Ana: South Main Street extension, 0.8 mi S of Newport Ave Comment
  UCR239647  Lepidium strictum Fred M. Roberts 2012-5-9 7552 Orange Santa Ana Mountains, Lake Forest, near Serrano Creek utility road, 0.3 m south-southwest of intersection of Commercentre and Dimension Drives 206 Comment
  LA204448  Lepidium virginicum James Lauter; 1953-4-25 sn Orange U.S. Highway 101, 17 mi. S of Laguna, San Mateo Creek bed Comment
  UCR4054  Lepidium virginicum Carole Sims 1965-3-25 s.n. Orange Santa Ana River Canyon, hillside at 24000 Santa Ana Canyon Road (= State Hwy 91), 150 yards north of hwy; also called Gypsum Canyon. West side of gravel company's trucking road. 221 Comment
  POM50054  Lepidospartum squamatum Helen D. Geis 1902-1 576 Orange Santiago Canyon. Comment
  UCR193821  Lepidospartum squamatum A. C. Sanders, Fred M. Roberts 2008-7-16 35864 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Creek wash at and above the confluence of Hangmans Tree Canyon 370 Comment
  UCR240087  Lepidospartum squamatum Dick Newell, Judy Booth 2012-6-3 262 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
  CDA1048  Leptochloa uninervia D. G. Kelch 2006-12-9 6 .552 Orange Irvine. University Dr along tidal creek just E of I-73. Comment
  IRVC27504  Leptochloa uninervia Mark A. Elvin 2004-5-2 3420 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7km (air) NNW UC Irvine campus center. Southern Coastal 3 Comment
  POM10156  Leptosiphon androsaceus P. A. Munz, R. D. Harwood 1920-4-24 5773 Orange Santa Ana Mountains 366 Comment
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Sep 17 2011
  CAS-BOT-BC402204  Leptosiphon 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
  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
  UCR197699  Lessingia filaginifolia A. C. Sanders, Fred M. Roberts 2008-9-18 36085 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge 330 Comment
  UCSB50646  Leymus condensatus Roberts, Fred; Allen, R. 1982-7-4 Orange Carbon Canyon, Carbon Canyon Rd., 0.4km by road SW County line; 2.3km NW Gilman Peak; Chino Hills 260 Comment
  RSA0018625  Leymus condensatus R. H. McArthur 1934-5-19 s.n. Orange Trabuco Canyon Bottom. Comment
  RSA697771  Leymus triticoides Minor Warne 1934-5-17 s.n. Orange Greenville Drainage. Comment
  UCR113455  Lilium humboldtii subsp. ocellatum R. E. Riefner Jr. 2000-6-30 20- 594 Orange Santa Ana Mountains, North Ranch Policy Plan Area, N Fremont Canyon at Donaldson Ranch, adjacent to powerline crossing on W fork of Fremont Cyn drainage 427 Comment
  RSA0061170  Lilium humboldtii subsp. ocellatum Robt. Allen 2006-7-9 s.n. Orange Santa Ana Mountains region: Trabuco Canyon, just below Alder Spring. Slightly north of first stream crossing southwest of Holy Jim Fire Department. Comment
  UC1789093  Limonium R. E. Riefner Jr. 2005-9-16 05 -667 Orange Upper Newport Bay, E of Bayside Dr. at Big Canyon Creek. 6 Comment
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Jan 7 2016
  CDA1076  Limonium binervosum D. G. Kelch 2006-12-9 6 .547 Orange Along Newport Back Bay Dr. in side canyon. Comment
  CLARK-A1528-3809  Limonium californicum John C. Roos 1937-8-31 740 Orange Newport Beach Comment
  IRVC29763  Limonium californicum Barry S. Nerhus, Mark A. Elvin 2006-11-4 8 Orange Huntington Beach, Bolsa Chica Wetlands, SW portion of Reserve beside Pacific Coast Highway. Southern Coastal 0 Comment
  SD80979  Limonium californicum Ted H. Thorsted Jr. 1970-8-17 33 Orange ca. 4 miles south of Seal Beach, NE of Pacific Coast Hwy at Bolsa Chica Salt Marsh Comment
  UCSB36206  Limonium californicum Ferren, Wayne 1980-8-27 Orange Tidal sand bank along channel of Newport Backbay below W side of Backbay Drive ca. 1.5 km NE of Rt. 1, Newport Beach Comment
  RSA554  Limonium californicum var. mexicanum J. T. Howell 1927-10-29 771 Orange Bryant Ranch near Long Beach. 15 Comment
  RSA723546  Limonium ramosissimum R. E. Riefner 2005-9-16 5 -667 Orange City of Newport Beach, E of Newport Bay and E of Bayside Dr. Big Canyon Creek drainage. 6 Comment
  UCR246475  Limonium tataricum R. E. Riefner Jr. 2009-4-20 09- 33 Orange South Coast, Laguna Niguel, vicinity of Olympiad Road at Stoneridge Road 266 Comment
  RSA783375  Linanthus J. D. Olmsted 1959-4-17 399 Orange Rattlesnake Rock north of Hidden Ranch along Black Star Canyon Road: 0.5 mile WSW of Beacon Pines Ranch. 747 Comment
  CHSC13481  Linanthus californicus T. N. Casale 1974-4-11 5 Orange On side of road, ca. 7.3 mi ne of the Mission San Juan Capistrano on Hwy 74. 243 Comment
  RSA221060  Linanthus californicus E. W. Lathrop 1966-3-23 6110 Orange 4 miles northeast of Lake Irvine, Black Star Canyon, Cleveland National Forest, Trabuco District. Comment
  RSA33575  Linanthus californicus N. C. Cooper 1944-6-4 1358 Orange San Juan Canyon. 610 Comment
  SD42979  Linanthus californicus E. B. Harbison Mar 1948 Orange San Juan Camp. Comment
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Sep 30 2013
  RSA618  Linanthus californicus subsp. glandulosus J. T. Howell 1927-6-26 229 Orange Claymine Canyon, near Sierra Peak. 457 Comment
  RSA773510  Linanthus dianthiflorus Fred M. Roberts 1999-4-26 5198 Orange Lomas de Santiago: Lomas Ridge, tributary to Santiago Canyon Wash on ridge between Limestone Canyon and the wash, 1.4 km SE Silverado School, and 2.7 km N Bolero Lookout. 358 Comment
  RSA698396  Linanthus dianthiflorus G. Jentges 1932-4-1 s.n. Orange Near Dam above Truine Park Santiago Canyon. Comment
  RSA3169  Linanthus dianthiflorus subsp. dianthiflorus C. B. Wolf 1932-3-8 2694 Orange Santiago Dam, W. base Santa Ana Mts. 305 Comment
  RSA539354  Linanthus dianthiflorus subsp. dianthiflorus Fred M. Roberts, Karen Kirtland 1989-2-22 4185 Orange San Joaquin Hills: Pelican Hill, 0.5km ESE Summit. 177 Comment
  UCR128169  Linanthus liniflorus Scott D. White, Michael Honer 2003-5-29 9424 Orange Santa Ana Mtn foothills, Rancho Mission Viejo. Hills above Canada Gobernadora on west side of canyon, c. 1 air mile north of Ortega Hwy. 152 Comment
  UCR193066  Linanthus liniflorus A. C. Sanders, T. B. Salvato 2008-5-13 35337 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Canyon at mouth of Hangman Tree Canyon and lower Hangman Tree Cyn, c. 1/2 mile below Modjeska Canyon confluence 366 Comment
  RSA680912  Linaria canadensis Scott D. White 2003-3-21 8797 Orange Santa Ana Mountain Foothills: Rancho Mission Viejo. East-facing slopes above an unnamed tributary to San Juan Creek. 122 Comment
  RSA0054843  Linaria canadensis Keith E. Hoffmaster 1927-4-2 304 a,b,c,d Orange Santa Ana Mts. San Onofre. Comment
  RSA718  Linaria canadensis var. texana J. T. Howell 1928-2-25 835 Orange Near Bee Canyon, Rancho Santa Ana. 152 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
  SFV17364  Lithophragma affine J. N. Hogue, J. D. Dilley, D. L. Bishop 1998-4-9 104 .3 Orange Santa Ana Mountains San Juan Canyon, 0.5 miles southwest of Lower San Juan Picnic Area at highway marker 14. 366 Comment
  RSA735257  Lithophragma affine Wilma Griset 1931-3-15 31 Orange Eagle Rock Comment
  RSA468251  Lithophragma affine subsp. affine Albert J. Perkins 1913-3-6 s.n. Orange Near San Juan Hot Springs. Comment
  POM193486  Lobelia dunnii var. serrata Helen E. Sweet 1928-08 s.n. Orange Santiago Canyon. Comment
  RSA651352  Lobularia maritima R. Spence 1974-8-13 s.n. Orange Upper Newport Bay. Comment
  UCR267210  Logfia arizonica Fred M. Roberts, Megan Lulow 2009-3-18 7135 Orange Santa Ana Mtns., LOMAS DE SANTIAGO: Loma Ridge, Lower Hicks Canyon, about 350 meters from south side of Haul Road, 1.9 km E Rattlesnake Cyn. Reservoir Dam and 2.1 km W Bee Peak 172 Comment
  CAS-BOT-BC342125  Logfia filaginoides Le Roy Abrams 1901-6-13 1795 Orange Trabuco Canon [Canyon] Comment
  CAS-BOT-BC283492  Lolium multiflorum Carl B. Wolf 1932-6-13 3728 Orange Fullerton, Malvern, and Nicholas Avenues 53 Comment
  UC729650  Lolium multiflorum Carl B. Wolf 1932-6-13 3714 Orange Fullerton; Rose Drive 53 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
  RSA697737  Lolium perenne subsp. multiflorum Minor Warne 1934-5-11 s.n. Orange Talbert Drainage. Comment
  UCR170137  Lolium perenne subsp. multiflorum Jeffrey Ross, R. Zaka 1998-5-2 47 Orange South Coast, North side of San Joaquin Hills; William R. Mason Regional Park, near intersection of Yale Avenue and University Drive 27 Comment
  RSA0051390  Lolium perenne subsp. multiflorum Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49665 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. Comment
  RSA697738  Lolium temulentum Elisabeth Norland 1929-4-12 s.n. Orange Near Winters burg. Comment
  RSA0105318  Lomatium lucidum Anonymous 1960-5-30 s.n. Orange On a rocky ridge at the head of Hagadon Canyon. Santa Ana Mountains. 1067 Comment
  RSA663282  Lomatium vaginatum R. E. Riefner 2000-4-27 20 -392 Orange North Ranch Policy Plan Area, along dirt road running S from Baker Canyon Rd. to Silverado Rd. 335 Comment
  RSA220958  Lonicera subspicata var. denudata E. W. Lathrop s.n. Orange 4 miles northeast of Lake Irvine, Black Star Canyon, Cleveland National Forest, trabuci District. Comment
  RSA769336  Lotus E. W. Lathrop 1974-6-27 7420 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  RSA697965  Lotus eriophorus Minor Warne 1934-5-6 s.n. Orange Ortega Highway Comment
  UC1719510  Lotus hamatus D. Atwood 1993-3-27 17693 Orange Corona del Mar State Park along Newport Coast Drive 0 Comment
  RSA2591  Lotus heermannii J. T. Howell 1928-7-10 1092 Orange Trabucco Canyon, Santa Ana Mts. 518 Comment
  UC454692  Lotus heermannii I. J. Condit 1908-7-21 Orange Los Alamitos Comment
  RSA498329  Lotus heermannii H. L. Bauer 1929-5-7 s.n. Orange Santa Ana Canyon. Comment
  RSA754059  Lotus purshianus A. C. Sanders, Fred M. Roberts 2008-7-16 35854 Orange Lomas de Santiago, upper Hangmans Tree Canyon. 395 Comment
  UCR186428  Lotus purshianus Robert DeRuff 1986-6-12 105 Orange Southern Coast, Newport Beach, Newport Back Bay, flats at 23rd St. 1 Comment
  UC1543236  Lotus salsuginosus Donald G. Nelson 1935-3-17 169 Orange Carbon Canyon, ne area of Orange County Puente Hills Comment
  RSA697974  Lotus salsuginosus H. Dittmer 1932-5-16 s.n. Orange Road to Irvine Dam Comment
  UCR131884  Lotus scoparius J. Mallory, V. McCoy 1995-6-30 6454- 59 Orange Santa Ana Mountains: S-facing slope on Windy Ridge, c. 2.5 mi. south of 91 fwy. 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
  IRVC22181  Lotus scoparius subsp. scoparius Fred M. Roberts 1985-4-8 1640 Orange San Joaquin Hills, Turtle Rock area, hill 1.1km SE French Hill, Irvine 196 Comment
  IRVC2254  Lotus scoparius subsp. scoparius C. Weir 1965-3-9 Orange east bluff, Mar Vista. Newport Beach Comment
  UCR220035  Lotus scoparius subsp. scoparius Rebecca T. Vo 2010-6-1 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
  UCR241906  Lotus scoparius subsp. scoparius Fred M. Roberts 2012-4-24 7525 Orange Peninsular Ranges; Coastal Foothills, San Joaquin Hills, Buck Gully, tributary canyon below San Joaquin Hills Road and 2.0 km W Signal Peak 167 Comment
  RSA737533  Lotus scoparius var. scoparius Fred M. Roberts 2008-3-12 6729 Orange Dana Point: Dana Point Headlands CNLM Preserve, western side, c.a. 0.8 km W Marine Institute (Dana Point Harbor). 50 Comment
  RSA748819  Lotus scoparius var. scoparius G. Gust, L. Nye 2005-3-12 564 Orange Cleveland National Forest, on Hwy 74 ca. 0.5 m W of county boundary with Riverside at a pullout. 401 Comment
  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
  RSA733878  Lotus strigosus A. C. Sanders, Fred M. Roberts 2008-4-8 34746 Orange Peninsular Range: Lomas de Santiago, Loma Ridge, head of Hicks Canyon. S of Santiago Reservoir. 351 Comment
  UCR168249  Lotus strigosus M. B. Dunkle 1933-3-5 3087 Orange Southern Coast, San Juan Canyon 305 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
  IRVC11703  Lotus strigosus var. strigosus R. Yarnell 1966-4-1 121 Orange near CSUF in open field. Fullerton Comment
  IRVC18811  Lotus strigosus var. strigosus Karlin G. Marsh 1983-4-11 s.n. Orange Laguna Beach: Sycamore Hills; dirt road surface of central ridge line. southern coastal Comment
  PASA1114  Lotus subpinnatus Frank W. Peirson 1922-5-18 Orange Santa Ana 137 Comment
  RSA406437  Lotus unifoliolatus M. B. Dunkle 1938-6-23 5382 Orange San Juan Canyon. Comment
  RSA562727  Lotus unifoliolatus Steve Boyd, T. S. Ross 1992-5-20 7463 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of the wilderness in Lucas Canyon along canyon floor from crossing Lucas Canyon Trail, upstream 1/4 mile to spur trail leading to old mining habitations in side canyon. 305 Comment
  UC1608265  Lotus wrangelianus Steve Boyd and Tim Ross 1992-5-20 7485 Orange Lucas Canyon at the Lucas Canyon Trail crossing, just downstream from crossing, w edge of the San Mateo Canyon Wilderness Area Southern Santa Ana Mountains, San Mateo Canyon Wilderness Ar 320 Comment
  UC864299  Lotus wrangelianus I. M. Johnston 1918-5-4 1932 Orange Laguna Beach 6 Comment
  IRVC28914  Lupinus adsurgens R. E. Reifner 1994-5-22 94 384 Orange San Onofre State Beach; N boundary, W of Pico Ave. Southern Coastal Comment
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Nov 19 2013
  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
  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
  UCSB47626  Lupinus bicolor Roberts, Fred 1980-5-3 Orange Santa Ana Mountains: Main Divide Truck Trail, 1.1 km. SE Blue Jay Campground; 2.6 km. WSW El Cariso Guard Station 902 Comment
  RSA699292  Lupinus bicolor Jeanne Paxton 1934-4-30 s.n. Orange Orange County Dam Comment
  IRVC14829  Lupinus bicolor subsp. microphyllus Gordon A. Marsh, Karlin G. Marsh 1976-4-4 s.n. Orange El Toro: Canada Rd., opposite Rancho Alagre. Southern Coastal Comment
  IRVC22012  Lupinus bicolor subsp. umbellatus Fred M. Roberts, Gordon Marsh 1985-3-12 1506 Orange mesa west of Ave. Pico and north of El Camino Real, 3.2km SSE Coyote Bluff; 0.6km E Bench Mark 16 (sect. 32), San Clemente 37 Comment
  IRVC2288  Lupinus bicolor subsp. umbellatus H. Ellis 1965-3-18 HS 0428 Orange Corona Del Mar Beach Southern Coastal Comment
  RSA184093  Lupinus bicolor subsp. umbellatus I. L. Wiggins 1966-3-22 20546 Orange Silverado Canyon about 5 miles above Ranger Station, Cleveland National Forest. Comment
  IRVC2289  Lupinus bicolor subsp. umbellatus M. Savage 1965-4-4 HS 0427 Orange Corona Del Mar Southern Coastal Comment
  UCR270351  Lupinus concinnus Dick Newell, Judy Booth 2016-4-24 423 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, 0.6 miles NW of Elsinore Peak on South Main Divide Rd. 973 Comment
  SD140102  Lupinus excubitus B. Pitzer, S. Hemstreet 1992-5-27 1964 Orange Cleveland National Forest, along road (3S04) to Blue Jay Group Campground, off State Hwy 74 (Ortega Hwy), ca. 2 airmiles west of El Cariso Campground 762 Comment
  IRVC20663  Lupinus excubitus var. hallii A. S. Boughey 1969-5-3 430 Orange Black Star Canyon on seaward side near crest. Santa Ana Mountains 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
  RSA6198  Lupinus excubitus var. hallii Carl B. Wolf 1932-5-27 3699 Orange Santa Fe R R, 1 mile West of Esperanza, Santa Ana Canyon. 107 Comment
  UCR191460  Lupinus hirsutissimus A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34654 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
  POM312150  Lupinus latifolius subsp. longipes N. C. Cooper 1944-6-4 1336 Orange San Juan Canyon. 549 Comment
  RSA413752  Lupinus latifolius subsp. parishii N. C. Cooper 1949-5-1 3949 Orange San Juan Canyon 610 Comment
  RSA619107  Lupinus latifolius subsp. parishii R. S. Woglum 1932-4-16 s.n. Orange Trabuco Canyon, Santa Ana Mountains, Cleveland National Forest Comment
  IRVC22852  Lupinus latifolius var. parishii Fred M. Roberts 1985-6-7 1884 Orange Viejo Canyon, 0.5km N Hwy. 74, 2.5km W Lower San Juan Picnic Ground. santa Ana Mountains 327 Comment
  RSA588787  Lupinus longifolius Fred M. Roberts, D. Bontrager 1990-4-18 4575 Orange Rancho Mission Viejo: Chiquita Ridge, just west of Canada Chiquita, 2.9 km N Median Rancho Survey Marker 183 Comment
  RSA0059076  Lupinus longifolius CNPS Accuracy Assessment Team 2014-5-7 7176 Orange Limestone Canyon. Comment
  SEINET2073427  Lupinus polyphyllus var. polyphyllus R. Beal 1980-5-6 Orange Dana Point, above Pacific Ocean, growing in hard-packed sand of sand hill. 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
  UC219306  Lupinus sparsiflorus P. A. Munz, R. D. Harwood 1920-4-25 3717 Orange Silverado Canyon; Santa Ana Mts., Silverado Canyon 548 Comment
  IRVC16565  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
  IRVC15180  Lupinus sparsiflorus subsp. sparsiflorus Gordon A. Marsh, K. Conrey 1977-4-14 s.n. Orange Lomas de Santiago: Lomas Ridge, 1/4mi NNW Rattlesnake Canyon Reservoir Dam. Southern Coastal Comment
  HSC14946  Lupinus succulentus S. M. Clapp 1966-4-3 3 Orange Brea, along Imperial Hwy. 61 Comment
  IRVC22220  Lupinus succulentus Fred M. Roberts, Gordon Marsh 1985-4-3 1612 Orange Irvine: Irvine Ranch, 1.2km W UCI campus center, Southern Coastal 24 Comment
  IRVC24496  Lupinus succulentus Fred M. Roberts, Gordon Marsh 1986-2-28 2621 Orange Mission Viejo: N of Oso Parkway; 4.2km NNE Saddleback Community College. Southern Coastal 200 Comment
  RSA4839  Lupinus succulentus James Snow 1932-1 s.n. Orange Bryant Ranch, near Long Beach. Comment
  RSA700183  Lupinus succulentus Minor Warne 1934-03 s.n. Orange Santa Ana Canyon Comment
  IRVC20345  Lupinus truncatus Fred M. Roberts 1983-3-10 892 Orange Dana Point Headlands: S of Scenic Drive, 0.3km W Dana Point Harbor; 0.8km S Richard Henry Dana School. Southern Coastal 60 Comment
  IRVC2357  Lupinus truncatus A. S. Boughey 1965-6-15 149 Orange Ortega highway; ca. 1.0 mile E of San Juan Guard Station. Santa Ana Mountains Comment
  RSA1700  Lupinus truncatus Carl B. Wolf 1931-3-6 1837 Orange Trabuco canyon, 1/2 mile above Trabuco Oaks, west slope of Santa Ana Mountains. 457 Comment
  RSA732078  Lupinus truncatus A. C. Sanders, Fred M. Roberts 2008-3-25 34566 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills. 259 Comment
  RSA735204  Lupinus truncatus Keith E. Hoffmaster 1934-4-22 177 Orange Santa Ana Mountains Comment
  RSA758902  Lupinus truncatus A. C. Sanders, Mitch Provance 2008-5-20 35393 Orange Lomas de Santiago, mouth of Hangman Tree Canyon just above confluence with Santiago Creek Canyon, c. 1/2 mile below Modjeska Canyon confluence 366 Comment
  UCR193438  Lupinus truncatus A. C. Sanders, Mitch Provance 2008-5-20 35393 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
  UCR228781  Lupinus truncatus Dick Newell, Don Millar 2011-5-3 135 Orange Coastal Plains, San Joaquin Hills, Laguna Canyon Wilderness Park, Willow Trail 160 Comment
  IRVC15185  Lupinus truncatus Gordon A. Marsh, K. Conrey 1975-4-14 s.n. Orange Lomas de Santiago: Lomas Ridge, 1/4mi NNW Rattlesnake Canyon Reservoir Dam Southern Coastal Comment
  IRVC19963  Lupinus truncatus Gordon A. Marsh, Karlin G. Marsh 1983-4-14 s.n. Orange Laguna Canyon: Sycamore Hills, N sector, road edge Southern Coastal 146 Comment
  CAS-BOT-BC233471  Lycium californicum Albert N. Steward 1958-3-20 7396 Orange East of Daylight Pass, Death Valley National Monument 1219 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
  RSA428834  Lycium californicum Albert J. Perkins 1920-6-12 s.n. Orange Corona del Mar Comment
  RSA428835  Lycium californicum Freda Detmers 1929-5-12 s.n. Orange Capistrano Beach Comment
  RSA743464  Lycium californicum Fred M. Roberts 2008-5-27 7010 Orange Dana Point: Dana Point Headlands, CNLM Preserve near Outlook 2, 0.7 km W Marine Institute (Dana Point Harbor). 45 Comment
  CDA25998  Lycopersicon esculentum Mark A. Elvin, B. S. Nerhus 2006-11-4 5248 Orange Southern Coastal; Huntington Beach; 1.5 km southwest of Wintersburg, southwest of junction Slater and Goldenwest; Shipley Nature Center. Comment
  IRVC29712  Lycopersicon esculentum Mark A. Elvin, Barry S. Nerhus 2006-11-4 5248 Orange Huntington Beach; 1.5 km SW of Wintersburg, SW of jct Slater and Goldenwest; Shipley Nature Center. Southern Coastal 1 Comment
  RSA0014835  Lythrum californicum Keith E. Hoffmaster 1927-6-26 452 Orange [Unspecified] Comment
  RSA0014849  Lythrum californicum L. M. Booth 1932-7-19 1282 Orange Bolsas Marsh. Comment
  UCR193437  Lythrum hyssopifolia A. C. Sanders, Fred M. Roberts 2008-5-6 35238 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, head of Hicks Canyon, south of Santiago Reservoir 351 Comment
  CAS-BOT-BC334710  Madia gracilis A. C. Sanders; Mitch Provance 2008-5-20 35390 Orange Lomas de Santiago mouth of Hangman Tree Canyon just above confluence with Santiago Creek Canyon c. 1/2 mile below Modjeska Canyon confluence, Santa Ana Mountains, Peninsular Range 365 Comment
  RSA708724  Madia gracilis Fred M. Roberts, Robert L. Allen, Chris M. Barnhill, Nancy Hatfield 2005-5-30 6224 Orange west slope of Modjeska Peak, Harding Canyon watershed, Main Divide Road, 0.46km W summit. 1670 Comment
  RSA362292  Madia gracilis Fred M. Roberts 1985-6-7 1846 Orange Santa Ana Mountains: Main Divide Truck trail, 2.2km ESE Los Pinos Peak. 1005 Comment
  OBI12364  Malacothamnus fasciculatus Louis C. Wheeler 1932-7-9 941 Orange Santa Ana River, 5 mi below Prado 152 Comment
  POM257048  Malacothamnus fasciculatus W. Pequegnat 1940-5-26 s.n. Orange Black Star Canyon, on Skyline Drive, Santa Ana Mts. 610 Comment
  RSA564300  Malacothamnus fasciculatus Scott D. White 1992-9-29 851 Orange Vicinity of City of Brea, immediately N of Carbon Canyon Road and E of Placentia Avenue, +/- 1 mi (airline) S/SE of Tonner Canyon. 183 Comment
  RSA750004  Malacothamnus fasciculatus A. C. Sanders, Fred M. Roberts 2008-9-18 36064 Orange Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge. 320 Comment
  LA41778  Malacothamnus fasciculatus var. fasciculatus Louis C. Wheeler; 1932-7-9 941 Orange Santa Ana River 5 mi. below Prado 152 Comment
  OBI5977  Malacothamnus fasciculatus var. fasciculatus Carl B. Wolf 1931-7-25 2294 Orange N side of the Pear Orchard, Rancho Santa Ana, Santa Ana Can. 122 Comment
  RSA743460  Malacothrix saxatilis var. saxatilis Fred M. Roberts 2008-7-10 7068 Orange Dana Point: Dana Point Headlands, CNLM Preserve, along north slopes above Dana Strand Beach, 0.8km WNW Marine Institute, Dana Point Harbor. 45 Comment
  UCR209661  Malacothrix saxatilis var. saxatilis Fred M. Roberts 2008-5-16 6978 Orange South Coast, Dana Point Headlands, Center for Natural Lands Mgmt. Preserve, along north slopes above Dana Strand Beach, 0.8 km west-northwest of the Marine Institute, Dana Point Harbor 45 Comment
  UC582778  Malacothrix saxatilis var. tenuifolia P. A. Munz 1936-6-20 14177 Orange road at La Vida Springs Carbon Canyon Comment
  CAS-BOT-BC347888  Malacothrix saxatilis var. tenuifolia P. A. Munz 1936-6-30 14177 Orange Road at La Vida Springs, Carbon Canyon Comment
  CDA8325  Malacothrix saxatilis var. tenuifolia T. C. Fuller 1962-6-7 8875 Orange Brea Canyon Road to Pomona, 1.2 miles north of Brea. 0 Comment
  IRVC841  Malacothrix saxatilis var. tenuifolia D. Frees 1965-3-27 Orange Newport Beach; East Bluffs. Southern Coastal Comment
  UCSB34482  Malephora crocea Ferren, Wayne 1980-8-27 Orange Newport Backbay; just W of Backbay Drive, ca. 2 km. NE of Rt. 1, Newport Beach Comment
  RSA542520  Malosma laurina Fred M. Roberts, R. Fisher 1986-6-18 3018 Orange Irvine: Lower Shady Canyon, east slope, ca 2.6 km SE French Hill. 91 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
  CAS-BOT-BC206641  Malva assurgentiflora L. R. Abrams 1917-6-23 6577 Orange Balboa Comment
  UCR109662  Malva parviflora G. S. Nuessly 1980-11-27 s.n. Orange Tustin. SE corner of 17th St. and Yorba Ave. 52 Comment
  RSA735967  Malva pseudolavatera Scott D. White, Justin M. Wood 2008-4-22 11907 Orange Chino Hills: Telegraph Canyon Road, E of Carbon Canyon Regional Park. 152 Comment
  JEPS68666  Malvella leprosa Lawrence M. Booth 1932-7-21 1296 Orange Anaheim Creek Comment
  POM12444  Malvella leprosa P. A. Munz 1922-9-2 6356 Orange Ponds in Laguna Canyon. 46 Comment
  POM202030  Malvella leprosa L. M. Booth 1932-7-21 1296 Orange Anaheim Creek Comment
  UCR158159  Malvella leprosa Adrian Wolf 1998-5-27 332 Orange South Coast, Newport Slough, south of oil fields, between Huntington Beach, Costa Mesa and Newport Beach, just south of the channelized mouth of the Santa Ana River 2 Comment
  UCR237831  Malvella leprosa Mark A. Elvin 2003-2-2 2283 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
  RSA441214  Marah macrocarpa M. B. Dunkle 1933-3-5 3092 Orange San Juan Canyon. Comment
  RSA441223  Marah macrocarpa E. S. Spalding 1923-1-1 s.n. Orange Laguna Beach. Comment
  RSA734010  Marah macrocarpa A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34619 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
  RSA184100  Marrubium vulgare I. L. Wiggins 1965-11-6 20347 Orange Near well #14, Kramer Oil Estates, near end of county road to Rancho Santa Ana. Comment
  UC1925603  Marsilea drummondii R. E. Riefner Jr. 2008-7-20 08 -243 Orange City of Irvine, San Diego Creek at West Yale Loop Road. Comment
  UCD170385  Marsilea drummondii R. E. Riefner Jr. 2008-6-22 08- 209 Orange City of Yorba Linda, Santa Ana Canyon, Santa Ana River, La Palma Ave. near Old Village Road. 95 Comment
  CHSC69822  Matricaria occidentalis C. L. Mitchcock; C. V. Muhlick 1964-3-17 Orange Along road, 8 miles e. of Yorba Linda, Santa Ana Canyon. Comment
  UC1292308  Matricaria occidentalis C. L. Hitchcock and C. V. Muhlick 1964-3-17 23065 Orange 8 mi e Yorba Linda; Santa Ana Canyon Comment
  CDA6380  Mazus japonicus W. Humphrey 1973-7-19 Orange 7231 Irvine Boulevard, Santa Ana. 0 Comment
  CAS-BOT-BC422724  Meconella denticulata Helen D. Geis 1904-5-1 716 Orange Silverado Canon [Canyon], Santa Ana Mts. Comment
  RSA697983  Medicago hispida Marjorie Smith s.n. Orange Santa Ana High school grounds. Comment
  IRVC2388  Medicago polymorpha Randy Acevedo 1965-5-5 HS 413 Orange Newport Beach; [Newport] Back Bay. Southern Coastal Comment
  RSA678512  Medicago polymorpha Valerie L. Soza, Kevin B. Clark, LeRoy Gross, Will Miller, Fred Roberts, Gary D. Wallace 2001-4-4 1129 Orange Seal Beach U. S. Naval Weapons Station, southwestern edge of Seal Beach National Wildlife Refuge. 3 Comment
  UCR191419  Medicago polymorpha A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34657 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 330 Comment
  SD241018  Medicago rigidula A. C. Sanders, Fred M. roberts 2008-3-25 34527 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills. 259 Comment
  IRVC2389  Medicago sativa L. Stilgenbauer 1965-4-20 s.n. Orange Trabuco Canyon. Santa Ana Mountains Comment
  UCR208445  Medicago truncatula R. E. Riefner Jr. 2007-4-1 07- 166 Orange South Coast, city of Laguna Niguel, Laguna Niguel Regional Park, general vicinity of La Paz Road at Aliso Creek 230 Comment
  CAS-BOT-BC227847  Melaleuca nesophila R. E. Riefner, Jr. 2011-7-1 11 -82 Orange City of Newport Beach, beach area west of the end of Cameo Shores Road; south ca. 1 mi from Poppy Avenue 1 Comment
  RSA722086  Melaleuca nesophila R. E. Riefner Jr. 2007-3-18 7 -151 Orange City of Newport Beach, N shore of Newport Bay, North Star Beach, general vicinity of North Star Ln. and Polaris Dr. 9 Comment
  UCR140883  Melaleuca viminalis Robert DeRuff 1987-7-18 301 Orange Southern Coast, Newport Beach, Big Canyon, near Jamboree Road 11 Comment
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Jun 5 2006
  RSA797664  Melica frutescens R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49768 Orange Santa Ana Mountains: Trabuco Canyon Comment
  RSA697718  Melica imperfecta Anonymous s.n. Orange Orange County park Comment
  RSA697761  Melica imperfecta Aileen Adams 1932-4-29 s.n. Orange Slope above dam. [Orange Co.?] Comment
  RSA751312  Melica imperfecta A. C. Sanders, Fred M. Roberts 2008-5-6 35265 Orange Lomas de Santiago, slope SE of road junction along ridge road, near head of Agua Chinon Canyon, 2.4 miles north of El Toro 470 Comment
  IRVC2398  Melilotus albus L. Aldis 1965-4-24 Orange Huntington Beach; Stater Ave. Southern Coastal Comment
  IRVC2399  Melilotus albus L. Stilgenbauer 1965-4-8 s.n. Orange Newport Beach; Corona del Mar. Southern Coastal Comment
  RSA234512  Melilotus albus James Henrickson 1970-7-24 5007 Orange 3 miles NW of Huntington Beach on sandy ''Rabbit'' Island in Bolsa Chica Salt March near Inner Bolsa Bay. 1 Comment
  RSA730996  Melilotus albus Fred M. Roberts 2006-11-15 6470 Orange Santa Ana Cyn., Santa Ana River, north bank, 1.1 km ENE Imperial Hwy crossing. 85 Comment
  HSC15021  Melilotus indicus S. M. Clapp 1966-4-7 29 Orange 3 mi. from Modjeska Canyon towards Silverado Canyon. 152 Comment
  IRVC2418  Melilotus indicus Bruce Reynolds 1965-4-20 s.n. Orange Newport Beach; Balboa Island, 115 Amethyst Ave. Southern Coastal Comment
  IRVC2419  Melilotus indicus B. Mawdsley 1965-5-1 s.n. Orange Newport Beach; Corona del Mar, 520 Narcissus Dr. Southern Coastal Comment
  UCR191440  Melilotus indicus A. C. Sanders, Fred M. Roberts 2008-4-8 34722 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, head of Hicks Canyon, S of Santiago Reservoir 351 Comment
  RSA773549  Mentzelia dispersa Fred M. Roberts, Robert Allen, Pat Brennon 2008-6-9 7035 Orange Santa Ana Mts.: Modjeska Peak, north slope, 0.2 km NNE summit 1632 Comment
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Mar 23 2020
  RSA539392  Mentzelia dispersa Fred M. Roberts, Carol A. Roberts 1988-6-9 4071 Orange Santa Ana Mountains: Main Divide Truck Trail, Modjeska Peak, west slope, 0.5 km NNW summit. 1417 Comment
  RSA734654  Mentzelia micrantha A. C. Sanders, Fred M. Roberts, A. O Neal, D. E. Bramlet 2008-5-9 35313 Orange Weir Canyon, along fire line/bulldozer cut, c. 1.5 mi. east of Walnut Cyn Reservoir. 346 Comment
  POM49182  Mentzelia veatchiana L. R. Abrams 1901-6-15 1880 Orange Santiago Peak trail. Comment
  IRVC14  Mesembryanthemum crystallinum L. Stilgenbauer 1965-3-20 Orange Corona del Mar, 339 Milford Dr. Newport Beach Comment
  CSUSB13  Mesembryanthemum crystallinum Heather Hanson 1966-5-5 s.n. Orange One mile south of Laguna on the beach Comment
  POM201708  Mesembryanthemum crystallinum L. M. Booth 1932-6-29 s.n. Orange Newport Bay. Comment
  UCR21020  Mesembryanthemum nodiflorum S. Beckstrom-Sternberg 1980-5-25 52580- 01 7 Orange Jamboree Rd entrance to Hwy 73 South. Comment
  UCR220023  Mesembryanthemum nodiflorum 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
  POM156685  Mesembryanthemum nodiflorum L. R. Abrams 1903-4-20 3280 Orange Along the seashore, near San Juan. Comment
  RSA263682  Micropus californicus E. W. Lathrop 1966-4-10 6154 Orange Silverado Canyon Comment
  UC1595639  Micropus californicus var. californicus Steve Boyd and Orlando Mistretta 1991-5-9 6203 Orange se of Sierra Peak (crest of range at Oak Flat, just w of Riverside County line); Santa Ana Mountains 792 Comment
  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
  RSA642507  Microseris douglasii subsp. platycarpha D. E. Bramlet 1998-4-23 2608 Orange Chino Hills. Within the old Edison spur road, 20m east of the 500Kv towers. The site is 1.98km south of Telegraph Cyn. and 823m north of Blue Mud Cyn. 412 Comment
  RSA799939  Microseris douglasii subsp. platycarpha Justin M. Wood 2011-4-12 3650 Orange South Coast: City of Costa Mesa. Fairview Park, just WNW of Marison Special Education Center. 24 Comment
  UCR152762  Microseris douglasii subsp. platycarpha D. E. Bramlet 2004-3-26 3541 Orange South Coast, Fairview Park in Costa Mesa, 183 m west of Canyon School and 366 m NW of intersection of Wilson & Canyon Dr. 24 Comment
  UCR157699  Microseris douglasii subsp. platycarpha Adrian Wolf 1998-5-15 289 Orange South Coast, Dana Point Headlands, north of Scenic Dr. 67 Comment
  RSA682756  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
  RSA542589  Microseris lindleyi Fred M. Roberts 1988-3-15 3860 Orange Rancho Mission Viejo; Verdugo Canyon, 1.3 km SSW Lucan Survey Marker 201 Comment
  RSA68354  Microseris lindleyi G. R. Campbell 1951-5-30 16102 Orange San Juan Canyon, Ortega Hwy, 4 mi. inside west border of Cleveland National Forest. 152 Comment
  UCR98256  Microseris lindleyi Scott D. White 1997-3-28 4846 Orange Santa Ana Mountains, Above Modjeska Canyon, proposed water tank site. 488 Comment
  JEPS87319  Mimulus David M. Thompson 1992-5-16 1067 Orange 2.4 mi n Hwy 1 (along Hwy 133 (Laguna Canyon Road)) 50 Comment
  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
  RSA785375  Mimulus aurantiacus D. M. McF 1956-4-11 s.n. Orange Moulton Ranch 152 Comment
  UCR281570  Mimulus aurantiacus Mitch Provance 2017-6-9 617- 86 Orange Coyote Hills, North Fullerton, East side of Gilbert St., 0.25 miles NNE of intersection with Castlewood Dr. 164 Comment
  UCSC000861  Mimulus aurantiacus Peter Kamb 1946-9-22 441 Orange San Mateo Point 5 Comment
  RSA734650  Mimulus aurantiacus var. aurantiacus A. C. Sanders, Fred M. Roberts, Amber O'Neal, D. E. Bramlet 2008-5-9 35300 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, along old dirt road c. 1.25 mi. ESE of Walnut Cyn Reservoir. 340 Comment
  UCR192087  Mimulus aurantiacus var. aurantiacus A. C. Sanders, Fred M. Roberts, Amber O'Neal, D. E. Bramlet 2008-5-9 35300 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along old dirt road, c. 1.25 mi. ESE of Walnut Cyn Reservoir 340 Comment
  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
  RSA542494  Mimulus aurantiacus var. pubescens Fred M. Roberts, Carol A. Roberts 1988-5-12 3965 Orange Anaheim Hills: Upper Deer Canyon, 7.7 km W Sierra Peak. 268 Comment
  RSA82104  Mimulus aurantiacus var. pubescens F. W. Peirson 1924-5-31 4660 Orange Laguna Canyon, near Laguna Beach. 61 Comment
  RSA442701  Mimulus aurantiacus var. puniceus T. W. Minthorn 1913-4-26 s.n. Orange Santiago Creek. Comment
  UCR194549  Mimulus brevipes A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35318 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along fire line/bulldozer cut, c. 1.5 mi. east of Walnut Cyn Reservoir 346 Comment
  UCR174193  Mimulus cardinalis A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33017 Orange Peninsular Range; Santa Ana Mtns., San Juan Canyon, from Lower San Juan Picnic Area to c. 1 mile downstream, parallel to Hwy 74 and near Riverside Co. line 396 Comment
  RSA17495  Mimulus clevelandii Percy C. Everett 1936-8-28 8233 Orange Main Divide Motorway, Head of Trabuco Canyon 1159 Comment
  UC718440  Mimulus clevelandii P. C. Everett 1935-6-18 7200 Orange 7 mi from Santiago Peak Lookout Station (Mian Divide Motorway); Santa Ana Mts. 1310 Comment
  RSA700926  Mirabilis laevis Keith E. Hoffmaster 1928-5-5 s.n. Orange San Onofre, other places Comment
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Nov 19 2013
  RSA731992  Mirabilis laevis A. C. Sanders, L. Farley, F. M. Roberts, D. E. Bramlet 2008-4-1 34651 Orange Peninsular Range: Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 250 Comment
  RSA751254  Mirabilis laevis A. C. Sanders, Fred M. Roberts 2008-7-16 35870 Orange Lomas de Santiago, Santiago Creek wash at and above the confluence of Hangmans Tree Canyon. 358 Comment
  JEPS61343  Mirabilis laevis var. crassifolia Alice King 1908-4-18 Orange near Santa Ana; ; Near Santa Ana Comment
  UCR281191  Modiola caroliniana Roger E. Reinke 2011-5-16 s.n. Orange Coastal Plain, Santa Ana, residence at 12782 Bubbling Well Road, backyard, end of driveway 41 Comment
  UCR207556  Monanthochloe littoralis O. F. Clarke 2004-4-5 s.n. Orange South Coast, Newport Back Bay 3 Comment
  SEINET11692038  Monanthochloe littoralis S. B. Parish, Parish, W. F. 1882-1 1603 Orange Newport Bay Comment
  CAS-BOT-BC219927  Monardella breweri subsp. lanceolata L. R. Abrams 1901-7-13 1788 Orange San Joaquin Hills Comment
  SEINET892767  Monardella breweri subsp. lanceolata P. C. Everett 1935-1 7238 Orange Santa Ana Mts., Trabuco Canyon, 1 3/4 mi. below summit of truck trail 975 Comment
  UCSB52887  Monardella breweri subsp. lanceolata Roberts, Fred 1983-9-26 Orange Santa Ana Mtns., Lion Canyon, Chiquito Basin Trail, 3.3km NNE Lower San Juan Picnic Ground 4.3km SSE Los Pinos Peak 810 Comment
  IRVC25103  Monardella hypoleuca subsp. hypoleuca Fred M. Roberts, Gordon A. Marsh 1986-8-27 3115 Orange Modjeska Peak; Main Divide Truck Trail; SW ridge; 1.0km SW summit Santa Ana Mountains 1530 Comment
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Aug 13 2012
  UCR193799  Monardella hypoleuca subsp. intermedia A. C. Sanders, Fred M. Roberts 2008-7-3 35683 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor 415 Comment
  RSA401585A  Monardella lanceolata var. lanceolata Claire Kibbe 1936-07 s.n. Orange Santa Ana Canyon. 762 Comment
  RSA450862  Muhlenbergia asperifolia Gordon Marsh, Karlin G. Marsh 1977-11-21 s.n. Orange Santa Ana Mountains: San Juan Hot Springs. Comment
  UCR205983  Muhlenbergia asperifolia R. E. Riefner Jr. 2000-3-26 20- 150 Orange Peninsular Range, Santa Ana Mountains: North Ranch Policy Plan Area, Fremont Canyon, north of major stream fork along west channel drainage 335 Comment
  CAS-BOT-BC275291  Muhlenbergia microsperma J. C. Nevin 1904-1-1 s.n. Orange Newport Bluff Comment
  LA9673  Muhlenbergia microsperma LeRoy Abrams; 1903-4-18 3260 Orange near San Juan Capristrano Comment
  RSA542362  Muhlenbergia microsperma Fred M. Roberts 1988-5-13 3970 Orange Lomas de Santiago: Loma Ridge, Upper Limestone Canyon near spring, 2.3 km NW Bolero Lookout 439 Comment
  RSA59  Muhlenbergia microsperma J. T. Howell 1927-6-5 37 Orange Rancho Santa Ana, near east boundary. 152 Comment
  SEINET3828400  Muhlenbergia microsperma R. E. Riefner Jr. 2011-1 11 -99 Orange Newport beach, Orange County Parks & Recreation lands, along Newport Coast Drive, between Vista Ridge Rd. & Alteza Rd. 281 Comment
  RSA0126617  Myoporum rapense Fred M. Roberts 2012-4-24 7496 Orange San Joaquin Hills: Buck Gully, W of intersection of Ridge Park Road and Newport Coast Drive, 1.5 km W Signal Peak. 179 Comment
  POM6290  Nama stenocarpa P. A. Munz 1919-5-4 2681 Orange Laguna Canyon. 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
  UCR158038  Nama stenocarpa Adrian Wolf 1998-6-23 358 Orange South Coast, northernmost of the Laguna Lakes in Laguna Canyon, southern edge of lake on west side of Laguna Canyon Rd. 119 Comment
  RSA548852  Nassella lepida Fred M. Roberts, H. Camp 1987-3-10 3218 Orange Caspers regional park: San Juan Canyon, BN of Hwy 74, 1.9km SW San Juan Hot Springs, UTM 3715600mN, 450 400m E, alt 229m. 229 Comment
  RSA598968  Nassella lepida Scott D. White 1997-3-28 4839 Orange Above Modjeska Canyon, proposed water tank site 425 Comment
  RSA684300  Nassella lepida Fred M. Roberts 2003-3-19 5606 Orange Donna O'Neill Land Conservancy: Ridges west of Cristianitos Cyn., 1,750m NNW Sycamore gate and 315m W Cristianitos Rd. (Canada Gobernadora., 33 deg 29'51'' N, 117 deg 34'13''W 192 Comment
  RSA697693  Nassella lepida Anonymous s.n. Orange Orange County park Comment
  RSA732150  Nassella lepida A. C. Sanders, Fred M. Roberts 2008-4-22 35015 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
  RSA743514  Nassella lepida Fred M. Roberts 2008-4-9 6865 Orange Dana Point: Dana Point Headlands, CNLM Preserve near Outlook 2, 0.7 km W Marine Institute (Dana Point Harbor). 52 Comment
  RSA749291  Nassella lepida Fred M. Roberts 1999-4-2 5169 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
  RSA732051  Nassella pulchra A. C. Sanders, Fred M. Roberts 2008-4-8 34741 Orange Peninsular Range: Lomas de Santiago, Loma Ridge, head of Hicks Canyon. S of Santiago Reservoir. 351 Comment
  UCD87644  Nassella pulchra R. M. L. 1942-4-15 7 Orange north slope. Moulton Ranch. Comment
  UCD87646  Nassella pulchra R. M. L. 1942-4-16 10 Orange 8 miles east of Santa Ana. Comment
  UCD87647  Nassella pulchra R. M. L. 1942-4-16 11 Orange 8 miles east of Santa Ana. El Toro Ranch. Comment
  UCSB48062  Nassella pulchra Fritzke, Sue; Roberts, Fred 1982-4-2 Orange Laguna Niguel; 3.5 km ESE of Aliso Peak; 3.2 km SSE of Alicia Fire Station 100 Comment
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Feb 5 2015
  CAS-BOT-BC60333  Nasturtium officinale John Thomas Howell 1927-7-15 2777 Orange Santa Ana River bottom, Santa Ana Canyon. 152 Comment
  RSA0028025  Nasturtium officinale Fred M. Roberts 2012-9-6 7698 Orange San Joaquin Hills: Buck Gully, Buck Gully Trail, west end near Poppy Street entrance, 2.1 kilometers WNW Pelican Hill summit. 37 Comment
  UCR247872  Nasturtium officinale Fred M. Roberts 2012-9-6 7698 Orange SAN JOAQUIN HILLS: Buck Gully, Buck Gully Trail, west end near Poppy Street entrance, 2.1 km WNW Pelican Hill summit. 37 Comment
  RSA697462  Nasturtium officinale R. H. McArthur 1934-4-2 s.n. Orange Wintersburg drainage ditch. In shallow water. Comment
  UCR230830  Nemacaulis denudata var. denudata Dick Newell 2011-6-17 176 Orange South Coast, Bolsa Chica Beach, Pacific Coast Hwy near Santa Ana River 5 Comment
  RSA751161  Nemacladus ramosissimus D. E. Bramlet 2008-4-14 4177 Orange Ridgeline in Hicks Cyn. 99m NW of the haul Rd. & 331m N of the Asphalt plant 211 Comment
  RSA699660  Nemophila menziesii var. integrifolia Keith E. Hoffmaster 1932-4-3 s.n. Orange Santa Ana Mountains Comment
  UCSB12894  Nemophila menziesii var. menziesii Breedlove, Dennis 1962-3-9 Orange 4.4 miles east of San Juan Capistrano on State 74 112 Comment
  RSA0060640  Nephrolepis cordifolia Richard E. Riefner 2014-6-14 14 -171 Orange City of Newport Beach, Cliff Drive Park, along Cliff Dr. near Beacon St. 44 Comment
  RSA733734  Nicotiana bigelovii Gray s.n. Orange Orange Park Hill Comment
  RSA733867  Nicotiana bigelovii Keith E. Hoffmaster 1934-7-15 114 Orange near Irvine Comment
  IRVC28777  Nicotiana glauca Archie F. Iskaq 2006-2-4 3 Orange San Joaquin Marsh; NW Edge of Marsh. Southern Coastal 3 Comment
  JEPS12502  Nicotiana glauca Alice King Apr 1908 Orange Santiago Creek; Santa Ana Mts. Comment
  RSA743470  Nicotiana glauca Fred M. Roberts, Lee Ann Carranza, Jeff Roseler 2008-10-9 7125 Orange Dana Point: Dana Point Headlands, CNLM Preserve, at base of cliff along south edge, 0.7 km W Marine Institute (Dana Point Harbor). 3 Comment
  SEINET7073413  Nicotiana glauca A. G. Vestal 1963-4-24 s.n. Orange La Paz Canyon, Rancho Mission Viejo. Coordinate datum: NAD27. Comment
  UCD126652  Nicotiana glauca E. Frost 1996-5-11 18 Orange Newport Back Bay, 35 yards in along bike path. 7 Comment
  POM201710  Nicotiana glauca L. M. Booth 1932-7-30 1338 Orange Santa Ana River, 2 miles from ocean Comment
  RSA573429  Nicotiana glauca Steve D. Boyd, Tim S. Ross 1994-9-14 8346 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area of the Cleveland National Forest, Lucas Canyon trail at stream crossing in Aliso Canyon. 341 Comment
  UCR141336  Nolana acuminata Robert DeRuff 1987-5-2 331 Orange Southern Coast, Newport Beach, Newport Back Bay, Big Canyon 8 Comment
  RSA648660  Nolina cismontana R. E. Riefner 2000-7-8 20 -628 Orange NCCP North Ranch Policy Plan Area. On ridgeline overlooking upper W fork of Fremont Canyon; located E of Main Divide Road and SE from Windy Ridge cypress forest. 438 Comment
  RSA759249  Nolina cismontana Robt. Allen, Celia Kutcher 2007-5-19 s.n. Orange San Juan Trail, circa 3.4 air miles (5458m) below (southwest of) trailhead at southern edge of Blue Jay Campground, circa 1.3 air miles (2121m) above (northeast of) trailhead at Hot Springs Canyon. 736 Comment
  SD121704  Nolina cismontana James C. Dice, Thomas Oberbauer 1986-5-3 649 Orange Santa Ana Mountains, upper Borrego Canyon, along Santiago Canyon Road, 1.8 kilometer south of Modjeska Canyon Road Comment
  UCR207516  Nolina cismontana O. F. Clarke 2006-5-6 s.n. Orange Peninsular Range; Santa Ana Mtns., Coal Canyon 305 Comment
  UC1931364  Nolina cismontana R. E. Riefner Jr. 2007-6-14 07 -256 Orange Santa Ana Mountains, Irvine Ranch Reserve, Fremont Canyon Conservation Easement, W Fork Fremont Canyon, Donaldson Ranch area. Comment
  SEINET9120476  Nolina parryi J. Dice, H. Wier 1984-1 587 Orange Mission Viejo. 1.2 km. NW of Lake Mission Viejo, along south edge of Vista del Lago, just west of Canaveras 274 Comment
  UC421656  Nolina parryi John Thomas Howell 1927-7-24 2827 Orange Claymine Canyon n. Santa Ana Mts. 152 Comment
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Nov 26 2007
  UC1007118  Oenothera elata subsp. hirsutissima P. A. Munz 1936-6-30 14173 Orange 5 mi s Garden Grove Comment
  RSA771511  Oenothera micrantha Keith E. Hoffmaster 1927-4-2 465 Orange Santa Ana Mountains [county not specified] Comment
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Jun 10 2012
  SDSU8537  Olea europaea Curtis B. Kendall 1994-5-18 18 V94A Orange North Intersection of Bell Canyon Road and the loop trail in the National Audubon Society Starr Ranch Sanctuary. 314 Comment
  RSA680344  Oncosiphon piluliferum Scott D. White, Jeff Lincer 2003-7-7 9616 Orange Former El Toro Marine Corps Air Stn. East of El Toro Marine Sch. and Irvine Blvd.; site of former dump. 140 Comment
  RSA288741  Opuntia M. G. McLeod, D. L. Walkington, D. J. Pinkava, G. Smith 1970-9-7 292 -B Orange West side of Euclid Avenue, 1/2 mi N of bastanchury, Fullerton. Comment
  RSA649688  Opuntia R. E. Riefner 2000-8-23 20 -733 Orange NCCP North Ranch Policy Plan Area. Fremont Canyon: N. of Santiago Creek & immediately S. of major stream fork 305 Comment
  RSA696230  Opuntia X occidentalis Keith E. Hoffmaster 1927-6-5 s.n. Orange near Newport Comment
  SD152894  Opuntia X occidentalis Steve Boyd, Tim Ross 1992-5-19 7425 Orange Southern Santa Ana Mountains, San MateoCanyon Wilderness Area, western edge of the wilderness along Lucas Canyon Trail from access road to Rancho Carrillo north into Aliso Canyon. Local, openings in chaparral. (IPB 9/07) 365 Comment
  CAS-BOT-BC56216  Opuntia ficus-indica John Thomas Howell 1927-6-22 2574 Orange Field redacted by CAS, contact the data manager for more information Comment
  POM285345B  Opuntia littoralis Lyman Benson 1955-10-17 15600 Orange Moulton Ranch just west of the summit east of Laguna Beach. 152 Comment
  POM317069  Opuntia littoralis David Walkington 1962-11-18 63 Orange West side of N Euclid Ave. north of Sunny Hills West Home, Fullerton. 76 Comment
  RSA704425  Opuntia littoralis Fred M. Roberts, David E. Bramlet 2004-7-30 6081 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, Western slopes of Cristianitos Cyn., 0.25km W Sycamore Gate and Cristianitos Road. 151 Comment
  UCR41053  Opuntia littoralis M. G. McLeod, D. L. Walkington, D. J. Pinkava, G. B. Smith 1971-5-9 445 Orange El Modena along ridge road Comment
  CAS-BOT-BC56866  Opuntia oricola B. D. Stark 1933-1-21 4520 Orange Field redacted by CAS, contact the data manager for more information 60 Comment
  UCR217283  Opuntia oricola Mark A. Elvin 2003-1-26 2234 Orange South Coast, Irvine, UC Irvine Open Space Preserve, NE side, between core of UCI campus (E Peltason Dr.) and Hwy 73 69 Comment
  IRVC14191  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
  RSA6612  Opuntia prolifera B. D. Stark 1933-1-17 4514 Orange 5 miles north of Laguna Beach on road to Irvine. 152 Comment
  SEINET6752377 Image available Opuntia prolifera Marc A. Baker, Bruce D. Parfitt 1987-4-12 7519 Orange Newport Beach, just W of bridge to Balboa Penninsula. Comment
  CAS-BOT-BC58074  Opuntia vaseyi B. D. Stark 1933-1-17 4512 Orange Field redacted by CAS, contact the data manager for more information 152 Comment
  RSA650905  Orthocarpus purpurascens Diane T. Liggett 1981-5-16 11 Orange Riverside Freeway (91) east to Imperial Hwy, south to Nohl Ranch Road, east to Serrano Ave., south on Hidden Cyn. Road, 1.2 km into Weir Cyn. Comment
  RSA0054847  Orthocarpus purpurascens Keith E. Hoffmaster 1927-4-2 531 Orange Santa Ana Mts. San Onofre. Comment
  RSA13172  Orthocarpus purpurascens var. pallidus Percy C. Everett 1935-4-27 6693 Orange 1 mi. west of Atwood, Jack Johnson property. 152 Comment
  CAS-BOT-BC355779  Osmadenia tenella Herbert L. Mason 1925-4-25 2903 Orange 5 miles south of Laguna Comment
  CAS-BOT-BC355781  Osmadenia tenella D. L. Crawford 1916-5-10 s.n. Orange Laguna Beach Region. Laguna Mts Comment
  IRVC24743  Osmadenia tenella Fred M. Roberts 1986-4-29 2823 Orange Turtle Rock, above corner of Ridgerout Dr. and Turtle Rock Dr., 1.1km SE French Hill, Irvine 141 Comment
  UCSB48382  Osmadenia tenella Roberts, Jr., Fred 1982-5-22 Orange Laguna Niguel; Niguel Hill, near end of Pacific Island Road, 1.6 km. ENE Aliso Peak 295 Comment
  IRVC15627  Osmorhiza brachypoda J. W. Johnson 1977-5-28 Orange Santiago Canyon, Fleming Property at E end of Modjeska; shaded bank of canyon side below chaparral. Santa Ana Mountains Comment
  UCR76185  Osmorhiza brachypoda B. G. Pitzer, Stu Hemstreet 1992-5-27 1951 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, along Forest Service Road 3S04 to Blue Jay Group Campground, off Hwy 74 (Ortega Hwy), c. 2 mi west of El Cariso Campground 765 Comment
  POM353433  Oxalis albicans subsp. californica M. B. Dunkle 1934-2-19 3837 Orange San Juan Canyon, 366 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
  RSA2071  Oxalis californica Carl B. Wolf 1931-3-6 1858 Orange Trabuco Canyon, 1.5 mile below Trabuco Camp Grounds 549 Comment
  SEINET946136  Oxalis californica Robert Barr 1967-1 67190 Orange Along Santiago Canyon Road near Silveraldo Road; Santa Ana Montains. 259 Comment
  SEINET3347440 Image available Oxalis pes-caprae P. S. Rattle Spring 1938 Orange Huntington Beach Comment
  UCSB41775  Oxalis pes-caprae Johnson, Chris 1970-3-20 Orange From planters along Science Bldg at Cal State Fullerton Comment
  UCR241053  Oxalis rubra Robert DeRuff 2010-3-16 379 A Orange South Coast, Upper Newport Bay, below Eastbluff North on bay side of Back Bay Dr. 4 Comment
  RSA732237  Paeonia californica A. C. Sanders, Fred M. Roberts 2008-4-22 35048 Orange Lomas de Santiago, slopes of south end of Loma Ridge and at head of Limestone Canyon, c. 2.5 miles SW of Silverado. 457 Comment
  UC1618071  Paeonia californica Donald G. Nelson 1935-7-9 206 Orange San Juan Canyon Comment
  UC718282  Paeonia californica Carl B. Wolf 1936-6-17 7949 Orange along Ortega Hwy 0.6 mi below San Juan Hot Springs; Santa Ana Mts. 182 Comment
  CAS-BOT-BC438784  Pallenis maritima R. E. Riefner, Jr. 2012-11-14 12 -551 Orange City of Newport Beach, S. of Poppy St. / Ocean Blvd., coastal bluff near Little Corona Beach rocky intertidal area. 5 Comment
  CAS-BOT-BC422790  Papaver californicum P. C. Everett; E. R. Johnson 1935-5-29 7094 Orange Santa Ana Mts., head of Claymine Canyon 762 Comment
  POM412  Papaver californicum Crocker 1916-3-28 s.n. Orange Santa Ana Mts. Comment
  RSA542524  Parietaria hespera var. californica Fred M. Roberts Jr. 1989-3-22 4223 Orange San joanquin Hills: Temple hill, Dripping Springs Cave, lateral to Wood Canyon; 2.6 km S moulton Peak. 76 Comment
  RSA184118  Paspalum dilatatum I. L. Wiggins 1965-9-26 20258 Orange Along railway right of way on northern outskirts of Yorba Linda, beside Imperial Hwy. near Casa Loma Ave. Comment
  JEPS70596  Paspalum distichum L. M. Booth 1932-7-1 1239 Orange Anaheim Creek Comment
  RSA784195  Paspalum distichum J. D. Olmsted 1959-9-22 980 Orange North of Santa Ana Mtns. Drainage area to Pacific Ocean: Along Santa Ana River just north of Sycamore Park and near intersection of stream from 3M clay works to the south. 137 Comment
  UCR192987  Paspalum distichum A. C. Sanders, Fred M. Roberts 2008-6-17 35499 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, West Loma Ridge Spur Road c. 0.8 mi SW of Irvine Lake and 0.9 mi. SE of Sheriff's Training Facility, just east of Hwy 241 280 Comment
  UC2061664  Paspalum pubiflorum R. E. Riefner Jr. 2007-9-30 07 -419 Orange City of Yorba Linda, Santa Ana Canyon, N bank of Santa Ana River, vicinity of La Palma Ave. and Via Loma De Yorba East. Comment
  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
  SD218260  Paspalum vaginatum R. E. Riefner Jr., K. Campbell 2008-8-31 08 267 Orange City of Irvine, tidal portion of San Diego Creek, immediately easst of Highway 73 overpass. 0 Comment
  UCR204165  Paspalum vaginatum R. E. Riefner Jr. 2007-7-8 07- 304 Orange City of Laguna Niguel, Aliso Creek, Alicia Pkwy at Skate Park Way 46 Comment
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Jul 30 2010
  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
  RSA737239  Paspalum virgatum R. E. Riefner 2008-7-29 08 -256 Orange City of Dana Point, Salt Creek Beach, Near Ritz Carlton Hotel 0 Comment
  RSA737240  Paspalum virgatum R. E. Riefner, K. Campbell 2008-8-31 08 -267 Orange Orange County: city of Irvine, San Diego Creek, E side of Hwy 73 overpass, alt 2ft. 1 Comment
  RSA0045505  Pectocarya linearis Keith E. Hoffmaster 1935-3-17 841 Orange Near El Toro[Lake Forest] (Trabuco rd.). Comment
  UCR217452  Pectocarya linearis subsp. ferocula Mark A. Elvin 2003-1-26 2230 Orange South Coast, Irvine, UC Irvine Open Space Preserve, NE side, between core of UCI campus (E Peltason Dr.) and Hwy 73 69 Comment
  RSA1458  Pedicularis densiflora E. R. Johnson 1929-4-11 1259 Orange Sierra Peak Trail. Comment
  UCR130357  Pelargonium A. C. Sanders, Mark A. Elvin 2003-10-12 27314 Orange Southern Coastal Slope, Irvine, UCI Arboretum, UCI campus near intersection of Jamboree Blvd. and Campus Dr. 15 Comment
  IRVC27881  Pelargonium A. C. Sanders, Mark A. Elvin 2003-10-12 27314 Orange Irvine; UCI Arboretum, UCI campus near intersection of Jamboree Blvd and Campus Dr. Southern Coastal 15 Comment
  UC185251  Pellaea andromedifolia Mrs. Carlotta C. Hall 1913-5-27 9407 Orange Santiago Canyon Comment
  IRVC20322  Pellaea andromedifolia var. andromedifolia Fred M. Roberts 1983-1-7 850 Orange Upper Park Canyon, west flank of Temple Hill, 1.7km NE Thurstn School; 1.7km SE BM 104, Laguna Beach 230 Comment
  RSA184141  Pellaea andromedifolia var. andromedifolia I. L. Wiggins 1966-2-4 20420 Orange Trabuco Canyon, about 1/2 mi. above canyon mouth Comment
  IRVC20364  Pellaea mucronata var. mucronata Fred M. Roberts, D. A. Roberts 1983-3-22 935 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
  CDA20319  Pennisetum villosum R. Tiffer 2004-11-9 PDR 1367133 Orange Anaheim. 1750 S. Douglass Road. Lawn weed. 0 Comment
  RSA723968  Pennisetum villosum R. E. Riefner 2005-9-20 05 -669 Orange City of San Clemente, along El Camino Read ca. 0.15 mi S of intersection with Los Molinos Rd. 35 Comment
  RSA790701  Penstemon cordifolius R. H. McArthur 1934-5-19 2 Orange PR8. Trobuca Canyon. Comment
  POM256951  Penstemon grinnellii W. Pequegnat 1940-5-17 s.n. Orange West base of Santiago Peak. 1677 Comment
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Sep 29 2007
  RSA708368  Penstemon grinnellii subsp. grinnellii Fred M. Roberts, Robert L. Allen, Chris Barnhill, Nancy Hatfield 2005-5-30 6244 Orange Modjeska Peak, west slope along summit road, 0.15km by air W summit. 1613 Comment
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Sep 29 2007
  UC1063390  Penstemon heterophyllus A. Lewis May 1934 432 Orange Los Pinos Peak Cleveland National Forest, Elsinore Quadrangle, Los Pinos Pk Comment
  IRVC26681  Penstemon palmeri Mark A. Elvin 2004-4-4 3216 Orange UCI Arboretum Southern Coastal 15 Comment
  CAS-BOT-BC330340  Pentachaeta aurea Le Roy Abrams 1903-4-17 3259 Orange Near El Toro Comment
  POM50883  Pentachaeta aurea L. R. Abrams 1901-06 1787 Orange San Joaquin Hills Comment
  RSA594885  Pentachaeta aurea Fred M. Roberts, Stadlander, Vizgirdas 1992-4-24 4840 Orange El Toro Marine Base: Mouth of Borrego Wash, 2.9 km SE Lambert Reservoir dam. 189 Comment
  RSA697045  Pentachaeta aurea Keith E. Hoffmaster 1935-3-17 s.n. Orange Near El Toro (Trabuco rd.) Comment
  UC1952548  Pentachaeta aurea D. Bramlet 1994-4-1 2367 Orange San Joaquin Hills. Camarillo Canyon area, some 427 m West of Laguna Canyon road and 671 m N of Camarillo Canyon. Comment
  IRVC14090  Pentagramma triangularis subsp. triangularis K. Marvosh 1966-5-3 Orange Silverado Canyon, 400yds S community center; moist, rocky, shaded bank of stream. Santa Ana Mountains Comment
  SBBG61477  Persicaria amphibia J. Ewan 1931-7-31 Orange Westfall near Huntington Beach Comment
  SD231420  Persicaria hydropiperoides Scott D. White, Matt Carlton 2003-11-20 9868 Orange Santa Ana Mountain foothills: San Juan Creek in San Juan Capistrano. 24 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
  RSA21070  Petunia parviflora Ramon Valverde 1938-8-4 9434 Orange Rancho Santa Ana, Santa Ana Canyon. 122 Comment
  RSA4186  Petunia parviflora L. R. Abrams 1901-6-13 1775 Orange Laguna Comment
  UCR158041  Petunia parviflora Adrian Wolf 1998-6-23 359 Orange South Coast, northernmost of the Laguna Lakes in Laguna Canyon, southern edge of lake on west side of Laguna Canyon Rd. 119 Comment
  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
  RSA734892  Phacelia brachyloba A. C. Sanders, Mitch Provance 2008-5-20 35423 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago area, Santiago Creek Canyon, c. 3/4 mile blow Modjeska Canyon confluence. 345 Comment
  UC718112  Phacelia brachyloba P. C. Everett 1935-6-18 7201 Orange Main Divide Motorway 1 4/10 mi s Los Pinos Potrero; Santa Ana Mts. 1097 Comment
  RSA679097  Phacelia cicutaria subsp. hispida Fred M. Roberts 2003-6-25 5952 Orange Santa Ana Mountains: Mojeska Peak in Upper Cold Springs Cyn., north of Main divide Truck Trail, 0.4 km ESE summit. 1471 Comment
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Jan 25 2007
  RSA594  Phacelia cicutaria var. hispida J. T. Howell 1927-7-26 477 Orange Claymine Canon near Sierra Peak. 244 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
  UC1075899  Phacelia distans E. K. Balls 1955-4-4 20425 Orange just n Dana Pt. (off Hwy 101 Alt.) 45 Comment
  UCSB48102  Phacelia distans Roberts, Fred 1982-4-3 Orange Santa Ana Mtns.: Lower Hot Springs Cyn., 0.6 km. by road N of San Juan Guard Station; 0.8 km. WSW Juan Rancho Survey Mark 240 Comment
  RSA2112  Phacelia minor Carl B. Wolf 1931-3-6 1830 Orange Trabuco Canyon Road, 1.25 miles below Trabuco Oaks. 305 Comment
  RSA596  Phacelia minor J. T. Howell 1928-4-7 906 Orange Near the ranch houses, Rancho Santa Ana. 152 Comment
  UCR192733  Phacelia minor A. C. Sanders, Fred M. Roberts 2008-5-6 35233 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hicks Canyon, just above tollway (Hwy 241) crossing on Irvine Haul Rd., near debris basin 216 Comment
  UCR100309  Phacelia parryi B. G. Pitzer 1997-4-15 3149 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
  UCR190988  Phacelia parryi A. C. Sanders, Fred M. Roberts 2008-4-22 34990 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
  RSA739553  Phacelia ramosissima A. C. Sanders, Fred M. Roberts 2008-7-3 35665 Orange Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor 365 Comment
  RSA7465  Phacelia ramosissima var. latifolia Carl B. Wolf 1933-8-24 5389 Orange Summit of Santiago Peak, Santa Ana Mountains. 1707 Comment
  RSA773554  Phacelia ramosissima var. latifolia Fred M. Roberts 2008-6-3 7030 Orange Lomas de Santiago: Loma Ridge, East Fork Rattlesnake Canyon, ca. 2.6 km NE of Rattlesnake Reservoir spillway and 2.4 km ENE Bee Peak 235 Comment
  SEINET6088752  Phacelia suaveolens Unknown 2008-6-26 Orange Peninsular Ranges. Santa Ana Mountains. Modjeska Peak, north face. Along access road up Modjeska Peak, outside the sharp bend in the extreme N end of the road. Survey Point # 47. Comment
  RSA759254  Phacelia suaveolens subsp. keckii Robt. Allen, Reginald Durant 2008-5-16 s.n. Orange Modjeska Peak, SW arm, along access road that leads up Modjeska Peak, about 20 m NE from junction with Main Divide Truck Trail. Survey point #63 1540 Comment
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Jul 21 2018
  RSA699161  Phacelia viscida Unspecified s.n. Orange Orange County park. Comment
  RSA443837  Phalaris aquatica Gordon Marsh, Karlin G. Marsh 1978-5-20 s.n. Orange Coal Canyon, NE portion of ridge 311 Comment
  RSA696380  Phalaris canariensis Keith E. Hoffmaster 1927-4-26 s.n. Orange Santa Ana. Comment
  CAS-BOT-BC259032  Phalaris lemmonii D. E. Bramlet 2003-6-8 3461 Orange South Coast: Fairview Park in Costa Mesa, 152 m west of Canyon School and 396 m NW of intersection of Wilson & Canyon Dr. 24 Comment
  IRVC21636  Phalaris minor R. L. Allen, Fred M. Roberts 1982-7-4 s.n. Orange Carbon Canyon, Carbon Canyon Rd., 0.6km by road SW county line; 2.3km NW Gilman Peak, Chino Hills 250 Comment
  POM356937  Phalaris paradoxa Anstruther Davidson 1916-6-1 3156 Orange Brea Ranch Comment
  SEINET10876692  Philodendron Thomas B. Croat 2003-4-5 Croat 87598 Orange Cultivated plants from Rick M. Cirino, Cosa Mesa, California. Originally from Brazil? Comment
  UCR66995  Phoenix canariensis A. C. Sanders 1990-10-6 10197 Orange Newport Bay, North Star County Beach Area on the SW end of the Bay, c. 2 km inland of Hwy 1. 3 Comment
  RSA296796  Pholistoma auritum Lyman Benson 1947-4-27 12339 Orange Carbon Canyon. Chino-Puente Hills; Pacific Slope Drainage Area. 244 Comment
  RSA734907  Phoradendron macrophyllum A. C. Sanders, Fred M. Roberts 2008-6-17 35480 Orange Peninsular Range; Santa Ana Mtns: Lomas de Santiago, Augustine staging area near Limestone Canyon Rd. gate at Santiago Cyn Rd. 260 Comment
  CAS-BOT-BC141054  Phoradendron serotinum subsp. macrophyllum Ira L. Wiggins 1966-3-25 20471 Orange Firestone Boy Scount Reservation, eash of Brea Comment
  UCR234134  Phoradendron villosum Dick Newell 2011-12-27 221 Orange Peninsular Range; Santa Ana Mtns. Region, Lomas de Santiago, along Hicks Haul Rd./Jeffrey Rd. south of Augustine Staging Area/Santiago Canyon rd. 314 Comment
  RSA684036  Phyllospadix torreyi E. Yale Dawson 1958-11-10 19789 Orange First rocky spit N of Dana Point. Station no 22. 270-300 ft from shore base point. Comment
  UCR195021  Picris echioides A. C. Sanders, Fred M. Roberts 2008-8-7 35993 Orange Peninsular Range; Santa Ana Mtns., lower Weir Canyon, at narrow gorge c. 0.6 mi. above mouth of cyn at Irvine Ranch gate 192 Comment
  CAS-BOT-BC73333  Pinus attenuata Carl B. Wolf 1934-12-21 6260 Orange N.E. of Sugarloaf Peak (Plesants Pk.), along Main St. Trail, Santa Ana Mts. 1158 Comment
  CAS-BOT-BC73334  Pinus attenuata Carl B. Wolf 1934-12-21 6259 Orange So. slope of main ridge, saddle n.w. of Sugarloaf Pk. (Pleasants Pk) 1 3/10 mi. so. of summit of Skyline Drive, 1158 Comment
  SD13290  Pinus attenuata Carl B. Wolf 1934-12-21 Orange Santa Ana Mountains, saddle northwest of Sugarloaf Peak (Pleasants Peak), south slope of main ridge, 1.3 mile south of summit of Skyline Drive 1160 Comment
  UCR231192  Pinus coulteri A. C. Sanders, T. B. Salvato, Kent Beaman 2011-11-3 39932 Orange Peninsular Range; Santa Ana Mtns., near Pleasants Peak along the Main Divide Truck Trail 1152 Comment
  SD236116  Pinus halepensis A. C. Sanders, Fred M. Roberts 2008-9-18 36082 Orange Peninsular Range; Santa Ana Mtns. Foothills: Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge 320 Comment
  UCR186587  Pinus halepensis Robert DeRuff 1995-9-24 240 Orange Southern Coast, Newport Beach, Newport Back Bay, Eastbluff 6 Comment
  RSA651141  Pinus radiata Jack D. Ingwersen 1962-6-2 s.n. Orange Anaheim Comment
  RSA749997  Pinus sabiniana A. C. Sanders 2008-7-3 35716 Orange Lomas de Santiago, Santiago Canyon near mouth of Limestone Cyn., at Agustine Staging Area 260 Comment
  POM202524  Piptatherum miliaceum L. M. Booth 1932-6-28 1211 Orange Balboa Island, Newport Beach Comment
  RSA226741  Piptatherum miliaceum I. L. Wiggins 1965-9-26 20256 Orange Along N margin of La Vida Property, above the hot srings Comment
  UCR234436  Pittosporum undulatum Dick Newell, Judy Booth 2012-4-29 247 Orange South Coastal Plain, Aliso Creek, 0.25 mi. north of Pacific Coast Highway 9 Comment
  RSA599652  Plagiobothrys acanthocarpus Fred M. Roberts 1995-4-21 4933 Orange Irvine: San Joaquin Hills, Quail Hill area near end of San Canyon Road, 2.5 km ENE French Hill. 52 Comment
  UCR102021  Plagiobothrys collinus B. G. Pitzer 1997-3-25 3025 Orange San Joaquin Hills, Crystal Cove State Park, Pelican Point Area, grassland between Pacific Coast Hwy and the bike trail 30 Comment
  UCR281560  Plagiobothrys collinus Mitch Provance, Jeremiah George 2017-3-20 317- 115 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
  RSA627747  Plagiobothrys collinus var. californicus Scott D. White 1998-3-18 6211 Orange UCI Campus: Site of proposed Research Park, Southwest of main campus circle, ca. halfway between Berkley Ave. and new Freeway (Bonita Cyn.). Plains dissected by a series of gullies. 37 Comment
  RSA695817  Plagiobothrys collinus var. californicus L. C. Hull 1934-4-8 s.n. Orange Laguna Hills. Comment
  RSA732238  Plagiobothrys nothofulvus A. C. Sanders, Fred M. Roberts 2008-4-22 35045 Orange Lomas de Santiago, valley at south end of Loma Ridge and at head of Limestone Canyon, c. 2.5 miles SW of Silverado, above spring shown on topo map. 427 Comment
  UCR191013  Plagiobothrys nothofulvus A. C. Sanders, Fred M. Roberts 2008-4-22 35030 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Limestone Canyon, c. 2 miles SW of Silverado 396 Comment
  UCSB47617  Plagiobothrys nothofulvus Roberts, Fred 1980-5-3 Orange Santa Ana Mtns.: 0.3 km. NNW Blue Jay Campground 1020 Comment
  SD181425  Plantago coronopus Valerie Soza, Kevin Clark, LeRoy Gross, Will Miller, 2001-4-4 1121 a Orange Anaheim Bay: Seal Beach U.S. Naval Weapons Station, southwestern edge of Seal Beach National Wildlife Refuge. 3 Comment
  UC2030079  Plantago coronopus Valerie Soza, K. Clark, LeRoy Gross, Will Miller, Fred M. Roberts, G. D. Wallace 2001-4-4 1121 a Orange Anaheim Bay: Seal Beach U. S. Naval Weapons Station, southwestern edge of Seal Beach National Wildlife Refuge. Comment
  RSA682593  Plantago erecta Scott D. White 1998-3-24 6232 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). 24 Comment
  UCR106273  Plantago erecta B. G. Pitzer 1997-3-25 3024 Orange San Joaquin Hills, Crystal Cove State Park, Pelican Point Area, grassland between Pacific Coast Hwy and the bike trail 30 Comment
  UCR171018  Plantago erecta R. E. Riefner Jr. 2006-4-12 06- 118 Orange Irvine, north foot of San Joaquin Hills, vicinity of Quail Hill, SSW of 405 Freeway and Shady Canyon Rd. 46 Comment
  CAS-BOT-BC402187  Plantago erecta subsp. erecta R. F. Thorne; E. W. Lathrop; W. Wisura 1977-4-27 49653 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. Comment
  UCR193367  Plantago lanceolata A. C. Sanders, T. B. Salvato 2008-5-13 35345 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
  POM201755  Plantago lanceolata L. M. Booth 1932-7-18 1266 Orange Costa Mesa, Newport Bay Comment
  UCR137450  Plantago major Scott D. White, Brian Leatherman 1997-6-12 5334 Orange Santa Ana Mtn. foothills, E of San Juan Capistrano: San Juan Creek between Hwy 74 bridge and Mission Vieja site, i.e. c. 2-4 mi east of Hwy I-15/Hwy 74 junction 76 Comment
  RSA4836  Plantago major James Snow 1932-1 s.n. Orange Bryant Ranch, Long Beach, Station 2, plant 1 Comment
  IRVC28915  Plantago rhodosperma Fred M. Roberts, Karlin G. Marsh 1988-4-25 3931 Orange San Joaquin Hills: E flank Pelican Hill, 0.9km SE summit. Southern Coastal 120 Comment
  UCR241072  Platanus racemosa Dick Newell, Judy Booth, Robt. L. Allen 2013-4-6 324 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, on Maple Springs Rd./Silverado Cyn. Rd., 1.5 miles above Maple Springs gate 671 Comment
  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
  SBBG126059  Plecostachys serpyllifolia R. E. Riefner Jr. 2008-10-22 08 -312 Orange vicinity of W St and Pacific Coast Hwy; City of Laguna Beach 4 Comment
  SD240896  Plecostachys serpyllifolia R. E. Riefner Jr. 2011-6-25 11 71 Orange Cityof Laguna Beach, Woods Cove, vicinity of Ocean Way at Pearl Street. 9 Comment
  UC2061644  Plecostachys serpyllifolia R. E. Riefner Jr. 2004-12-30 04 -681 Orange City of Laguna Beach, vicinity of West St. and Pacific Coast Highway. Comment
  RSA751406  Plecostachys serpyllifolia R. E. Riefner Jr. 2007-4-28 07 -190 Orange City of Newport Beach, Dover Beach, vicinity of Morning Star Ln., and Polaris Dr. 8 Comment
  RSA785449  Plecostachys serpyllifolia R. E. Riefner Jr. 2011-6-25 11 -71 Orange city of Laguna Beach, Woods Cove, vicinity of Ocean Way at Pearl Street 9 Comment
  RSA759269  Plectritis ciliosa Robert Allen, Reginald Durant, David Taylor 2008-4-11 s.n. Orange Maple Springs Saddle. Inside region of 180 degree bend in road. On small N-facing slope. 1363 Comment
  IRVC29816  Pluchea odorata Mary H. White 2006-9-23 92306 2 Orange San Joaquin Marsh Freshwater Marsh, UC Natural Reserve; SW edge, along San Diego Creek, N of University Drive, E Hwy 73. Southern Coastal 2 Comment
  RSA710412  Pluchea odorata Fred M. Roberts 2005-10-3 6300 Orange San Juan Capistrano: San Juan Creek wash, La Novia Road Bridge to 100m E of bridge, 1.4km E Mission San Juan Capistrano, 27 Comment
  UCR240106  Pluchea odorata Dick Newell, Judy Booth 2012-9-26 287 Orange South Coast, Newport Beach, Back Bay Drive at Big Canyon parking area 3 Comment
  SBBG63434  Pluchea odorata var. odorata M. N. Ackley -Oct-1928 1189 Orange Huntington Beach 8 Comment
  UC421657  Pluchea odorata var. odorata John Thomas Howell 1927-9-24 3117 Orange Santa Ana Canyon 152 Comment
  UCR150568  Pluchea purpurascens Scott D. White, Matt Carlton 2003-11-20 9871 Orange South Coastal Plain, Santa Ana Mtn foothills. San Juan Creek in San Juan Capistrano 24 Comment
  SD247604  Pluchea purpurascens R. F. Thorne, E. W. Lathrop and W. Wisura 1977-7-8 49637 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs. Comment
  CAS-BOT-BC326616  Pluchea sericea John Thomas Howell 1927-7-24 2823 Orange Santa Ana River bottom, Santa Ana Canyon 152 Comment
  RSA5323  Pluchea sericea B. D. Stark 1932-12-30 4472 Orange Rancho Santa Ana. River bottom below Mexican houses. 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
  CAS-BOT-BC255537  Poa annua Ira L. Wiggins 1966-2-1 20405 Orange Just E of Letters & Science building, California State College at Fullerton Comment
  RSA685929  Poa annua Fred M. Roberts 2003-3-27 5628 Orange Rancho Mission Viejo:Donna O'Neill Land Conservancy, Chistianitos Canyon, along North Ride Trail, 1.37 km N Sycamore Gate, 0.36 km W Chistianitos Rd. 114 Comment
  RSA699158  Poa pratensis Rankin s.n. Orange Santa Ana. Comment
  IRVC24561  Poa secunda Fred M. Roberts 1986-4-11 2782 Orange San Juan Canyon, Hwy 74, 1.2km SSW Lower San Juan Picnic Ground, Santa Ana Mountains 378 Comment
  CAS-BOT-BC236338  Poa secunda subsp. secunda R. C. Wenk; et al. 2008-3-24 719 Orange Chino Hills State Park. South Ridge Road W of San Juan Hill, going W from Equestrian Staging Area, Top of ridge 441 Comment
  RSA785454  Polygala cornuta subsp. fishiae A. C. Sanders, T. B. Salvato, Kent Beaman 2011-11-3 39941 Orange near Pleasants Peak along the Main Divide Truck Trail 1143 Comment
  RSA425  Polygala cornuta var. fishiae J. T. Howell 1927-7-3 258 Orange Claymine Canyon near Sierra Peak. 305 Comment
  RSA561496  Polygala cornuta var. fishiae Steve Boyd, Kyle Boyd 1992-7-9 7654 Orange Northern Santa Ana Mountains, along the main crest of the range, north of Pleasants Peak and south of Oak Flat (aka Oat Flat), 1.5 miles south of junction of Main Divide and Skyline Roads. Comment
  RSA791874  Polygala cornuta var. fishiae Robert F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49615 Orange Santa Ana Mountains: along Ortega Highway (74) about 2.5 miles above San Juan Fire Station, lateral ravine tributary to San Juan Canyon Comment
  UCR113454  Polygala cornuta var. fishiae R. E. Riefner Jr. 2000-6-13 20- 494 Orange Santa Ana Mountains, North Ranch Policy Plan Area, N Fremont Canyon south of Donaldson Ranch, upper W fork of Fremont Canyon drainage 363 Comment
  UCR237811  Polygala cornuta var. fishiae Dick Newell, Judy Booth 2012-7-8 279 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, on Maple Springs Road 2.25 mi. NE of Maple Springs gate 915 Comment
  RSA466308  Polygonum coccineum Albert J. Perkins 1912-09 s.n. Orange Roadside ditch, Santa Ana. Comment
  RSA21059  Polygonum fusiforme Ramon Valverde 1938-8-4 9445 Orange Rancho Santa Ana, Santa Ana Canyon. 122 Comment
  RSA195  Polygonum hydropiperoides J. T. Howell 1927-7-5 268 Orange West side, Rancho Santa Ana [Botanic Garden]. 152 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
  RSA731907  Polygonum lapathifolium Fred M. Roberts, Sandy Leatherman 2007-11-27 6672 Orange Yorba Linda: Santa Ana Canyon, Santa Ana River wash, S of E La Palma Road near Via Lomas de Yorba Linda, about 0.6 km W Gypsum Cyn. bridge. 113 Comment
  RSA466354  Polygonum lapathifolium Malcolm M. Rice 1927-9-4 s.n. Orange San Juan Creek Bed, San Juan. Comment
  RSA0062672  Polypodiaceae Doug Bell 1949-2-5 s.n. Orange Newport Beach. 6 Comment
  IRVC3043  Polypodium californicum C. Thompson 1965-4-15 HS0570 Orange Trabuco Canyon. Santa Ana Mountains Comment
  RSA0135563  Polypodium californicum R. E. Riefner 2017-3-31 17 -137 Orange City of San Clremente, San Clemente State Beach, NW bluff area immediately S of Ave. Calafia. 24 Comment
  RSA689928  Polypodium californicum Albert J. Perkins 1913-3-6 s.n. Orange San Juan Hot Springs Comment
  UCSB62523  Polypodium californicum Kiefer, Lawrence 1963-12-8 Orange Santa Ana Mtns. along road in main canyon above Silverado. 457 Comment
  IRVC3041  Polypodium californicum B. Newman 1965-5-7 HS0572 Orange Newport Beach; Back Bay Comment
  RSA734767  Polypogon interruptus A. C. Sanders, T. B. Salvato 2008-5-13 35348 Orange Lomas de Santiago, Santiago Canyon at mouth of Hangman Tree Canyon and lower Hangman Tree Cyn, c. 1/2 mile below Modjeska Canyon confluence 366 Comment
  IRVC15371  Polypogon monspeliensis J. B. Anderson 1966-4-22 607 Orange San Joaquin Hills: Los Trancos Canyon, along dirt road and near spring. Santa Ana Mountains 122 Comment
  IRVC1811  Polypogon monspeliensis L. Stilgenbauer 1965-4-15 s.n. Orange Corona del Mar; 339 Milford Drive. southern coastal Comment
  IRVC1813  Polypogon monspeliensis C. Hooven 1965-4-10 s.n. Orange Spruce and Palisades (sic). southern coastal Comment
  IRVC21785  Polypogon monspeliensis Fred M. Roberts 1985-2-25 1456 Orange Irvine: Irvine Ranch; east of MacArthur Blvd., 1.2km W UCI campus; 1.7km SE Bay View School. Southern Coastal 24 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
  RSA708227  Polypogon monspeliensis Fred M. Roberts, Robert L. Allen, Chris Barnhill, Carol A. Roberts 2005-4-10 6166 Orange Costa Mesa: Fairview Park, west of north end of Canyon Drive, c.a. 0.2km WNW Marison Special Education Center (Canyon Sch. on topos). 24 Comment
  RSA0045355  Polypogon monspeliensis Keith E. Hoffmaster 1935-3-28 119 Orange West of Costa Mesa. Comment
  RSA91997  Polypogon monspeliensis F. W. Peirson 1924-5-31 4649 Orange Laguna Canyon near Laguna Beach. 107 Comment
  POM202525  Polypogon viridis L. M. Booth 1932-6-7 1163 Orange Newport Lagoon. Comment
  UCSB52417  Polypogon viridis Roberts, Fred 1982-10-18 Orange Laguna Beach; Temple Hill, east flank, east margin of Top of the World School 295 Comment
  UCR154273  Populus fremontii subsp. fremontii Mark A. Elvin 2004-5-2 3430 Orange Southern Coastal, Irvine: San Joaquin Freshwater Marsh, near Campus and University Drives; 1.7 km (air) NNW UC Irvine campus center 3 Comment
  POM1024  Potamogeton nodosus I. M. Johnston 1918-9-3 2144 Orange Lakes in Laguna Canyon, Sa Joaquin Hills 107 Comment
  POM201867  Potentilla anserina var. grandis L. M. Booth 1932-6-28 1215 Orange Bolsas Marsh. Comment
  CAS-BOT-BC356380  Pseudognaphalium beneolens Frank W. Peirson 1923-9-7 4042 Orange Santiago Peak, Holy Jim Canon [Canyon] trail Comment
  UCR106310  Pseudognaphalium biolettii B. G. Pitzer, M. Georgiady 1997-4-5 3096 Orange San Joaquin Hills, Crystal Cove State Park, portion across highway on the beach, bluffs immediately above beach and adjacent terraces for southeast end of park. 24 Comment
  CAS-BOT-BC356662  Pseudognaphalium californicum A. M. White 1974-6-2 1417 Orange Ca. 20 mi. E. of Santa Ana, CA N. of Silverado Canyon Comment
  UCR281519  Pseudognaphalium californicum Mitch Provance 2017-6-9 617- 94 Orange Coyote Hills, North Fullerton, East side of Gilbert St., 0.5 miles ENE of intersection with Castlewood Dr. 124 Comment
  UCR119300  Pseudognaphalium canescens subsp. canescens R. E. Riefner Jr. 2000-8-8 20- 724 Orange Peninsular Range, Santa Ana Mountains, North Ranch Policy Plan Area, NE property, E slope of upper Fremont Canyon, south of Donaldson Ranch and south of powerline/ National Forest boundary 454 Comment
  SBBG119614  Pseudognaphalium leucocephalum F. M. Roberts 2003-7-24 5963 Orange San Juan Crk, ca. 0.1 km NE of La Novia Bridge, San Juan Capistrano 27 Comment
  UCR274176  Pseudognaphalium ramosissimum Dick Newell, Don Millar, Judy Booth 2016-6-29 430 Orange South Coast, Newport Beach, on Back Bay Dr., 0.15 mile NNE of Shellmaker Road 5 Comment
  JEPS20429  Pseudognaphalium stramineum L. M. Booth 1932-7-19 1275 Orange Bolsa Chica Comment
  RSA659893  Pseudognaphalium stramineum Karl Price 1988-5-21 42 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
  IRVC27729  Psilocarphus brevissimus var. brevissimus Mark A. Elvin 2004-5-2 3413 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7km (air) NNW UC Irvine campus center. Southern Coastal 3 Comment
  RSA599408  Psilocarphus tenellus R. E. Riefner 1997-4-15 97 -128 Orange San Clemente State Beach, south bluff area Comment
  UCR27153  Psilocarphus tenellus E. W. Lathrop 1966-4-10 6155 Orange Peninsular Range; Santa Ana Mtns, Silverado Canyon 732 Comment
  CAS-BOT-BC506648  Psilotum nudum R. E. Riefner, Jr. 2015-8-27 15 -357 Orange Cit of Newport Beach, N side of North Coast Hwy, E side of La Brea St. 31 Comment
  IRVC27016  Psilotum nudum A. C. Sanders, Mark A. Elvin 2003-11-9 27356 Orange Irvine: UCI Arboretum, UCI campus near intersection of Jamboree Blvd. and Campus Dr. Southern Coastal 15 Comment
  RSA698725  Psoralea macrostachya W. Blanchard 1932-5-25 s.n. Orange Irvine Park Comment
  UCR156569  Psoralea macrostachya Gordon Marsh, Karlin G. Marsh 1976-7-8 15014 Orange Peninsular Range; Santa Ana Mtns., Lower San Juan Picnic Grounds, near Calif. Route 74 396 Comment
  UCR174209  Psoralea macrostachya A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33029 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
  UCR174183  Psoralea orbicularis A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33037 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
  RSA392941  Pterostegia drymarioides Albert J. Perkins 1913-4-27 s.n. Orange Trabuco Canon. Comment
  RSA594895  Pterostegia drymarioides Fred M. Roberts, Sandy Leatherman, Brian Leatherman 1994-4-24 4908 Orange Santa Ana Mountains: San Juan Canyon, south side of CA route 74, 1.2 kilometers SW Lower San Juan Picnic Ground. 390 Comment
  RSA542463  Pterostegia drymarioides Fred M. Roberts 1987-3-27 3279 Orange Canada De Los Alisos: above Canada Rd., 4.5 km NNE El Toro Fire Station. 226 Comment
  CAS-BOT-BC362146  Pulicaria paludosa Robert L. Pope 1959-8-14 s.n. Orange Ray Miller prop., Santa Ana Canyon, e. of Fullerton Comment
  CDA7144  Pulicaria paludosa D. G. Kelch 2006-12-9 6 .57 Orange Irvine. University Dr along tidal creek just E of I-73. Comment
  CDA7613  Pulicaria paludosa Robert L. Pope 1959-8-14 Orange Ray Miller property, Santa Ana Canyon, east of Fullerton. 0 Comment
  IRVC29828  Pulicaria paludosa Tom McCrainie, Mark A. Elvin 2006-9-23 2 Orange San Joaquin Marsh Freshwater Marsh, UC Natural Reserve; SW edge, along San Diego Creek, N of University Drive, E Hwy 73. Southern Coastal 2 Comment
  JEPS35293  Pulicaria paludosa R. L. Pope 1963-9-23 Orange approx 0.75 mi above Yorba Linda Bridge; Sanat Ana Canyon Comment
  OBI5232  Pulicaria paludosa T. C. Fuller 1993-10-9 11362 Orange Santa Ana cyn, 0.1 mi S of riverside fwy to Anaheim, ca 2 mi W of the Riverside Co. line Comment
  RSA689537  Pulicaria paludosa R. E. Riefner 2002-5-4 20 -93 Orange Upper Newport Bay, Jamboree Rd at Bayview Dr. 15 Comment
  SD233765  Pulicaria paludosa A. C. Sanders, Pam MacKay, Tim Thomas, O. F. Clarke, et al. 1998-10-17 22266 Orange Coastal flats: Bolsa Chica, near Bolsa Bay, south of Warner Ave., E of the Pacific Coast Highway (Seal Beach 7.5' Q) Comment
  UCR211082  Pulicaria paludosa Joseph Cahill 2009-8-21 3172 B Orange South Coast, Bolsa Chica Ecological Reserve 1 Comment
  UCSB71041  Pulicaria paludosa Ferren, Wayne 1991-11-29 Orange San Joaquin Marsh. North of Sand Diego Creek & east of MacArthur Blvd. Comment
  RSA539419  Pulicaria paludosa Fred M. Roberts, Doug Willick 1988-9-16 4137 Orange Peralata Hills: Oak Canyon Nature Center, Upper Walnut Canyon, 1.0 kilmeter N Robbers Peak. 180 Comment
  SD136812  Pycnanthemum californicum Steve Boyd, Tim Ross 1994-9-14 8351 Orange Southern Santa Ana Mts., San Mateo Canyon Wilderness Area of the Cleveland Nat Forest, Lucas Canyon Trail at stream crossing Lucas Canyon 310 Comment
  RSA221064  Pyrus communis E. W. Lathrop 1966-4-18 6176 Orange Santa Ana Mountains, 4 miles northeast of Lake Irvine, Black Star Canyon, Cleveland National Forest, Trabuco District. Comment
  UC1607991  Quercus Donald G. Nelson 1935-3-23 187 Orange hills n. Fullerton Comment
  UCD47711  Quercus X acutidens John M. Tucker 1941-5-30 254 Orange Low shrub, in San Juan Canyon, 200 yards west of San Juan Guard Station, Highway 74, Orange County, California. Comment
  RSA12362  Quercus X grandidentata E. R. Johnson 1934-1-6 5562 Orange Santa Ana Mts., on slopes of Sierra Peak at about the head of Claymine Canyon. 762 Comment
  CAS-BOT-BC61813  Quercus agrifolia C. B. Wolf 1931-3-6 1832 Orange 1.5 miles below Trabuco Oaks along Trabuco Canyon road, west slope Santa Ana Mts. 304 Comment
  CAS-BOT-BC61814  Quercus agrifolia John Thomas Howell 1927-6-21 2565 Orange hills on north side of Santa Ana Canon 152 Comment
  RSA476865  Quercus agrifolia Thekla Mohr 1939-4-7 288 Orange Corona Skyline Road Comment
  RSA697622  Quercus agrifolia Unspecified s.n. Orange Orange County park. Comment
  UCR44899  Quercus agrifolia B. G. Pitzer, L. F. LaPre 1986-10-20 0305 Orange Santa Ana Mtns, Summit of Hicks Canyon on a private road (continuation of Jeffrey Road), c. 2.4 mi. above the gun club 274 Comment
  IRVC1350  Quercus berberidifolia A. S. Boughey 1965-3-16 67 Orange Santa Ana Mtns: Silverado Cyn. Peninsular Ranges Comment
  IRVC24518  Quercus berberidifolia Fred M. Roberts, Gordon A. Marsh 1986-2-28 2632 Orange Mission Viejo: N of Oso Parkway; 4.2km NNE Saddleback Community College. Southern Coastal 200 Comment
  RSA171930  Quercus berberidifolia Robert F. Thorne 1963-7-26 32828 Orange Santa Ana Mts., Cleveland National Forest, Trabugo District. 1189 Comment
  UCR119317  Quercus berberidifolia R. E. Riefner Jr. 2000-7-8 20- 627 Orange Santa Ana Mountains, North Ranch Policy Plan Area, on ridgetop overlooking W fork of Fremont Canyon, east of Main Divide Road along the powerline 396 Comment
  UCR144739  Quercus berberidifolia A. S. Boughey, Pat Pembrook 1965-6-8 1013 Orange Los Trancos Canyon, below the spring, San Joaquin Hills 91 Comment
  UCR246514  Quercus berberidifolia Fred M. Roberts 2013-5-30 7779 Orange Lomas de Santiago, Santiago Creek Wash, at Santiago Canyon Road bridge, south side, 0.3 km west of the junction of Silverado and Santiago Canyon Roads 299 Comment
  UCSB58638  Quercus berberidifolia Muller, Cornelius 1953-5-2 Orange Swain Canyon, lower end, Santa Catalina Island Comment
  RSA0044655  Quercus berberidifolia Leo Miller 1938-3-26 s.n. Orange Near top of Saddleback Mountain. Comment
  RSA0059077  Quercus berberidifolia CNPS Accuracy Assessment Team 2014-7-19 461 B Orange Laguna Coast Wilderness Park. Comment
  UC1135416  Quercus chrysolepis A. Lewis May 1934 416 Orange Trabuco Canyon Cleveland National Forest, Elsinore Quad. 1371 Comment
  IRVC21616  Quercus engelmannii Fred M. Roberts, Kelly P. Steele 1984-4-20 1345 Orange Rancho Mission Viejo: Hwy 74 near mouth of Trampas Canyon; 8.7km by road E San Juan Capistrano Southern Coastal 90 Comment
  RSA542389  Quercus engelmannii Richard Ericson 1991-6-11 s.n. Orange San Joaquin Hills: upper Coyote Canyon on north signal peak, ca. 0.6 km NW summit, UTM 37 19 000m N, 4 24 200m E alt. 204m 204 Comment
  UCR144740  Quercus wislizeni var. frutescens Gordon Marsh, Karlin G. Marsh 1985-9-27 s.n. Orange Santa Ana Mtns., Pine Canyon, 4.1 km NW of Modjeska Peak 805 Comment
  RSA724035  Ranunculus arvensis R. E. Riefner 2000-4-2 0 -166 Orange Santiago Equestrian Center, Santiago Canyon Rd., N 0.5 m from Ridgeline Rd., Oso Creek drainage. 392 Comment
  POM303771  Ranunculus californicus Lyman Benson 1947-4-27 12338 Orange Carbon Canyon. Chino-Puente Hills; Pacific Slope Drainage Area. 244 Comment
  RSA734148  Ranunculus muricatus Pomeroy 1929-3-8 95 Orange Santa Ana. Comment
  IRVC1157  Raphanus sativus D. Pfirrmann 1965-4-28 Orange Del Mar and Fair[way] Dr. Costa Mesa 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
  UCR188929  Rauvolfia samarensis Robert DeRuff 2007-11-24 s.n. Orange Newport Beach, Upper Newport Bay, above Back Bay Drive in the vicinity of the Narrows, c. 0.8 km north of Big Canyon 26 Comment
  RSA399208  Reseda alba Albert J. Perkins 1912-05 s.n. Orange escape from cultivation- Mignonette, Santa Ana Comment
  UC1121751  Rhamnus californica A. Lewis 1934-4-1 381 Orange Black Star Canyon Cleveland National Forest, Corona Quad. 304 Comment
  RSA663161  Rhamnus californica R. E. Riefner 2000-8-3 20 -711 Orange NCCP North Ranch Policy Plan Area. E of Main Divide Road and Windy Ridge. 535 Comment
  CAS-BOT-BC56027  Rhamnus ilicifolia P. C. Everett 1936-9-19 8269 Orange Santa Ana Mts., Silverado Canyon, in vicinity of Forest Service Gate at base of road 762 Comment
  LA207818  Rhamnus ilicifolia P. C. Everett; 1935-6-17 7138 Orange Santa Ana Mountains, Coldwater Canyon, 0.5 mi. above Glen Ivy Resort 457 Comment
Read comments
Jan 23 2015
  POM201686  Rhamnus ilicifolia L. M. Booth 819 Orange Santa Ana Canyon Comment
  POM246501  Rhamnus ilicifolia Carl B. Wolf 1933-11-3 5531 Orange Silverado Canyon at base of Silverado motorway. Upper Sonoran. 732 Comment
  RSA17465  Rhamnus ilicifolia Percy C. Everett 1936-9-19 8269 Orange Silverado Canyon, in vicinity of forest service gate at base of road. 762 Comment
  UC592699  Rhamnus ilicifolia P. C. Everett 1935-6-19 Orange 2 mi below Forest Service Patrol Station; Santa Ana Mts., Trabuco Canyon 365 Comment
  RSA3178  Rhus integrifolia C. B. Wolf 1932-3-8 2685 Orange 1/2 mile N of Corona del Mar, Newport Bay. 8 Comment
  RSA678717  Rhus integrifolia Fred M. Roberts, Laura Cohen 2000-3-24 5271 Orange Rancho Mission Veijo Land Conservancy: Tributary to Christanitos Cyn., Flagpole Meadow, upper shady Canyon Trail, about 1.6 NW Sycamore Gate. 170 Comment
  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
  RSA0054853  Rhus laurina Grace Adams 1938-5-28 s.n. Orange Santiago Creek. Comment
  LA62870  Rhus ovata C. B. Wolf; 1931-3-6 1857 Orange Santa Ana Mountains, Trabuco Canyon, 1.5 mi. below Trabuco Camp Ground Comment
  POM212356  Rhus ovata C. B. Wolf 1931-3-6 1857 Orange Trabuco Canyon, 1.5 mile below Trabuco Camp Grounds 549 Comment
  RSA701660  Rhus ovata Anonymous 1929-12-1 s.n. Orange Black Star Canyon Comment
  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
  SEINET5642638  Rhus ovata Shelby J. Wood 2013-3-6 6 Orange Laguna Hills.; 0 Comment
  UCR76183  Rhus ovata B. G. Pitzer, S. Hemstreet 1992-5-27 1960 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, along Forest Service Road 3S04 to Blue Jay Group Campground, off Hwy 74 (Ortega Hwy), c. 2 mi west of El Cariso Campground 765 Comment
  OBI20443  Rhus ovata Elisabeth Norland 1941-11-5 11185 Orange Nursery Lahthouse in falt 732 Comment
  CAS-BOT-BC93073  Ribes californicum var. hesperium Carl B. Wolf 1930-1-30 1824 Orange Claymine Canyon, Santa Ana Mountains. 457 Comment
  CAS-BOT-BC93074  Ribes californicum var. hesperium Carl B. Wolf 1931-1-30 1825 Orange Claymine Canyon, Santa Ana Mountains. 457 Comment
  RSA0027776  Ribes californicum var. hesperium Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49693 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  RSA1738  Ribes hesperium Carl B. Wolf 1931-1-30 1824 Orange Claymine Canyon, Santa Ana Mts. 457 Comment
  UCSB47637  Ribes malvaceum var. viridifolium Roberts, Fred 1980-5-3 Orange Main Divide Truck Trail; 0.2km west of Trabuco Peak; Santa Ana Mtns 1347 Comment
  RSA0016149  Ribes roezlii Keith E. Hoffmaster 1932-4-17 519 Orange Santa Ana Mts. [Orange/Riverside Cos] Comment
  CAS-BOT-BC173738  Ribes speciosum Marcus E. Jones 1931-3-23 28326 Orange Laguna Comment
  UCD102509  Ribes speciosum P. B. Kennedy 1925-1-12 s.n. Orange Irvine Range. Comment
  UCR149497  Ribes speciosum Scott D. White, Michael Honer 2004-5-17 10384 Orange South Coast, City of Laguna Niguel. Ridges and open slopes directly N of the intersection of Crown Valley Parkway and Pacific Island Dr 183 Comment
  CHSC26237  Ricinus communis E. Bushey 1968-5-15 51 Orange San Juan Canyon Rd. 304 Comment
  RSA267967  Ricinus communis E. W. Lathrop 1977-6-16 7655 Orange Silverado Canyon. Santa Ana Mts. Cleveland National Forest, Trabuco District. 365 Comment
  IRVC22781  Robinia pseudoacacia Fred M. Roberts, B. L. Parry 1985-5-21 1828 Orange near mouth of Muddy Canyon, Crystal Cove St. Pk., 0.8km ESE Reef Point, west of El Morro Sch., San Joaquin Hills 24 Comment
  POM50334  Romneya coulteri L. R. Abrams 1901-06 1852 Orange Trabuco Canyon Comment
  RSA2097  Romneya coulteri B. D. Stark 1931-5-18 2054 Orange Santa Ana River bottom, SW of Ranch Houses, Rancho Santa Ana. 122 Comment
  RSA446208  Romneya coulteri M. B. Dunkle 1933-5-30 3573 Orange Santa Ana River Canyon 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
  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
  SD234972  Romneya coulteri A. C. Sanders, T. B. Salvato 2008-5-13 35373 Orange Peninsular Range, Santa Ana Mountains: Lomas de Santiago, Santiago Canyon above (S of) mouth of Hangman Tree Canyon, just below Modjeska Canyon confluence (El Toro 7.5' Q) 366 Comment
  UC1126495  Romneya coulteri H. E. Norton 1931-3-6 36 Orange Baker Canyon 609 Comment
  UC186874  Romneya coulteri Samuel B. Parish Oct. 1880 393 Orange near Anaheim; Santa Ana Canyon Comment
  RSA741720  Romneya coulteri R. E. Riefner 2008-3-20 8 -106 Orange Irvine Ranch Reserve, Fremont Canyon Conservation Easement, W fork Fremont Canyon, S Donaldson Ranch area. 380 Comment
  RSA446207  Romneya coulteri var. trichocalyx Claire Kibbe 1936-07 s.n. Orange Santa Ana Canyon. Comment
  POM144067  Rorippa curvisiliqua L. R. Abrams 1901-06 1768 Orange Laguna - Lake Comment
  CDA23131  Rorippa nasturtium-aquaticum Mark A. Elvin, D. G. Kelch 2006-12-9 5293 Orange Southern Coastal; Newport Backbay; Big Canyon, lower end. Comment
  JEPS53864  Rorippa palustris Alice King May 1908 Orange grounds of Shooting Club near Garden Grove; near Garden Grove Comment
  RSA703026  Rorippa palustris subsp. occidentalis R. E. Riefner Jr. 2004-8-27 4 -393 Orange City of Irvine, San Diego Creek at 405 freeway. 50 Comment
  RSA734908  Rosa californica A. C. Sanders, Fred M. Roberts 2008-6-17 35481 Orange Peninsular Range; Santa Ana Mtns: Lomas de Santiago, Augustine staging area near Limestone Canyon Rd. gate at Santiago Cyn Rd. 260 Comment
  RSA788914  Rosa californica Fred M. Roberts 2008-6-12 7038 Orange Lomas de Santiago: Loma Ridge, Shoestring Canyon, Shoestring Road near jct. with Santiago Cyn. Rd. 251 Comment
  UC212548  Rosa californica I. M. Johnston 1918-9-3 2140 Orange Laguna Canyon Comment
  UCR98236  Rosa californica B. G. Pitzer 1997-4-15 3132 Orange San Joaquin Hills, Crystal Cove State Park, north of the N end of the City of Laguna Beach. Along Moro Canyon Trail, from beginning to a point c. 1.75 mi. up the canyon. 49 Comment
  POM2667  Rubus ursinus Philip A. Munz 1918-5-4 2219 Orange Laguna Beach. Comment
  RSA542399  Rubus ursinus Fred M. Roberts Jr. 1987-3-31 3293 Orange Lomas de Santiago: Lomas Ridge, Upper Serrano Canyon east fork, 2.9 km SE Bolero Lookout. 327 Comment
  JEPS39886  Rumex conglomeratus Lawrence M. Booth 1932-6-9 1178 Orange ner coast Santa Ana River Comment
  SD227881  Rumex conglomeratus Scott D. White, Brian Leatherman 1997-6-12 5340 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. Stream. 46 Comment
  CAS-BOT-BC421795  Rumex conglomeratus Carl B. Wolf 1932-7-2 3823 Orange Carbon Canyon, 1/8 mi. below La Vida Springs. 213 Comment
  JEPS39877  Rumex crispus Lawrence M. Booth 1932-5-12 1051 Orange Newport Bay Comment
  RSA74870  Rumex crispus Elroy Robinson 1935-6-28 s.n. Orange Anaheim, Santa Fe Railway. 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
  RSA0037201  Rumex obtusifolius A. C. Sanders, Fred M. Roberts 2008-7-7 36004 Orange Santa Ana Mtns: Weir Canyon at powerline crossing, 1.0 mi. (air) SSE of Walnut Canyon Reservoir. 226 Comment
  RSA627778  Rumex salicifolius Scott D. White 1998-3-24 6231 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). 24 Comment
  SEINET5471003 Image available Ruppia maritima James Henrickson 1970-7-24 5023 Orange 3 mi. NW of Huntington Beach- Inner Bolsa Bay- froming very dense stand along margins of bay. Comment
  RSA234499  Salicornia bigelovii James Henrickson 1970-9-5 5314 Orange 3.5 miles NW of Huntington Beach, 0.25 mile SE of Warner Ave. in Lower Littoral zone of Bolsa Chica Salt Marsh along outer Bolsa Bay. 0 Comment
  UCR234135  Salicornia bigelovii Dick Newell 2011-10-2 220 Orange South Coastal Plain, Newport Back Bay, near Big Canyon parking area off Back Bay Dr. 0 Comment
  UCSB36213  Salicornia bigelovii Ferren, Wayne 1980-8-27 Orange W side of Backbay Drive ca. 1.5 km. NE of Rt. 1, along channel of Newport Backbay, Newport Beach Comment
  RSA689541  Salicornia bigelovii R. E. Riefner 2003-8-17 3 -335 Orange Costa Mesa, marsh along Santa Ana River, west of Talbert Regional Park. 11 Comment
  RSA268  Salicornia virginica J. T. Howell 1927-10-29 788 Orange Bryant Ranch, near Long Beach. 15 Comment
  RSA478898  Salicornia virginica F. R. Fosberg 1930-7-10 S 3983 Orange Anaheim Landing. [Los Angeles Co. on label] 1 Comment
  UC1929632  Salicornia virginica Valerie Soza, Kevin Clark, LeRoy Gross, Will Miller, Fred Roberts, Gary Wallace 2001-4-4 1101 Orange Seal Beach National Wildlife Refuge; Seal Beach U. S. Naval Weapons Station, across access road from Nature Center (Bldg 226). 3 Comment
  IRVC24541  Salicornia virginica J. Johnson 1976-8-10 Orange Newport [Back] Bay. Newport Beach Comment
  RSA478902  Salicornia virginica E. Yale Dawson 1948-8-15 5107 Orange Salt marshes bordering estuaries leading to Bolsas Bay. Comment
  RSA5282  Salicornia virginica B. D. Stark 1932-12-9 4430 Orange Capistrano Beach at Doheny Palisades. 5 Comment
  OBI5926  Salix exigua Carl B. Wolf 1932-4-15 2954 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Cyn 120 Comment
  POM182044  Salix exigua Carl B. Wolf 1932-7-7 3845 Orange Bixby Ave., 1 km. W of Hansen road near town of Los Alamitos. 8 Comment
  RSA542353  Salix exigua Fred M. Roberts Jr., Gordon Marsh 1987-8-31 3602 Orange Santa Ana River: adjacent to Santa Ana, 0.5 km NE 17th St. bridge. 27 Comment
  RSA731935  Salix exigua Fred M. Roberts, Sandra Leatherman 2007-11-27 6675 Orange Yorba Linda: Santa Ana Canyon, Santa Ana River wash, S of E La Palma Road near Via Lomas de Yorba Linda, about 0.6 km W Gypsum Cyn. bridge. 113 Comment
  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
  LA208639  Salix exigua var. hindsiana Carl B. Wolf; 1932-4-15 2954 Orange Santa Ana Canyon, Rancho Santa Ana, near Santa Ana River, S of pear orchard, in Botanic Garden 120.0 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
  RSA731955  Salix gooddingii Fred M. Roberts 2007-12-12 6702 Orange Santa Ana Canyon: Santa Ana River, south of Green River Golf course on south side of river, 0.4km E Coal Cyn. Rd. and 0.7km W Riverside Co. line. 129 Comment
  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
  POM2051  Salix laevigata Philip A. Munz 1918-4-5 2023 Orange Laguna, south of town. 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
  RSA0030858  Salix laevigata Carl B. Wolf 1932-4-8 2949 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Canyon. 120 Comment
  UCSB52458  Salix laevigata Roberts, Fred; Allen, R. 1982-7-4 Orange Chino Hills: Carbon Canyon, Carbon Canyon Rd., 0.6km by road SW county line; 2.3km NNW Gilman Peak 76 Comment
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Oct 28 2018
  CAS-BOT-BC125331  Salix lasiandra var. lasiandra R. E. Riefner, Jr. 2006-10-4 06 -475 Orange Peninsular Range; Santa Ana Mtns. Foothills: Lake Forest, Aliso Creek near Portola Parkway at El Toro Rd. 225 Comment
  IRVC8761  Salix lasiolepis Charles W. Sexton 1965-2-12 s.n. Orange Newport Beach. Southern Coastal Comment
  POM210857  Salix lasiolepis L. M. Booth 1932-12-31 1384 Orange Newport Bay. Comment
  RSA611261  Salix lasiolepis Louis C. Wheeler 1946-9-28 6379 Orange Newport Bay: 1/2 mile north of main coast highway. 2 Comment
  CAS-BOT-BC128461  Salix lasiolepis var. lasiolepis Marcus E. Jones 1930-3-3 25527 Orange Santa Ana Mountains Comment
  UCR203883  Salix lucida subsp. lasiandra R. E. Riefner Jr. 2008-5-20 08- 108 Orange Irvine Ranch Reserve, north Irvine Ranch, south Donaldson Ranch c. 0.75 mi along west fork of upper Fremont Canyon 405 Comment
  CAS-BOT-BC126312  Salix sessilifolia Carl B. Wolf 1932-4-15 2953 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Canyon 120 Comment
  RSA539369  Salpichroa origanifolia Karlin G. Marsh 1991-3-4 s.n. Orange Laguna Beach; south side of Diamond Street, east of Gainsborough Dr. 76 Comment
  UCR258620  Salsola australis Fred M. Roberts 2014-7-25 7889 Orange South Coast, SAN JOAQUIN HILLS: Laguna Lake 1 (Upper Laguna Lake), south basin 113 Comment
  RSA696279  Salsola kali var. tenuifolia Keith E. Hoffmaster 1927-5-30 s.n. Orange Santa Ana. Comment
  RSA270  Salsola tragus J. T. Howell 1927-7-27 499 Orange Near ranch houses, Rancho Santa Ana 152 Comment
  RSA5504  Salsola tragus C. B. Wolf 1932-6-28 3758 Orange Bryant Ranch: along western half of north boundary of 40 acre Valencia orange grove at Bryant Ave. and Hansen Road. 9 Comment
  RSA542480  Salvia apiana Fred M. Roberts, G. A. Marsh, K. G. Marsh 1988-4-26 3941 Orange San Joaquin Hills: Pelican Hill, 0.5km SE summit. 165 Comment
  RSA697874  Salvia apiana L. C. Hull 1934-4-27 s.n. Orange Trabuco Canyon. Comment
  UC1124655  Salvia apiana A. Lewis 1934-5-1 434 Orange Los Pinos Peak; Cleveland National Forest, Elsinore Quad. 1036 Comment
  UCR188932  Salvia clevelandii Robert DeRuff 2005-5-25 556 Orange Newport Beach, Upper Newport Bay, draw on bluff south of the Interpretive Center near end of Del Mare Avenue 20 Comment
  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
  SD42978  Salvia columbariae EB H mar 1948 Orange Ner San Juan Camp Comment
  UCR188943  Salvia leucantha Robert DeRuff 2006-1 564 Orange Newport Beach, Upper Newport Bay, near end of 23rd Street on west side of the Bay 11 Comment
  RSA658203  Salvia leucophylla T. A. Daubert 1991-5-19 655 Orange Tucker Wildlife Sanctuary, Modjeska Canyon inside sanctuary. Comment
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Dec 1 2016
  UCR228791  Salvia leucophylla Dick Newell, Don Millar 2011-5-10 147 Orange Peninsular Range; Santa Ana Mtns., along MWD service road between Outdoor Education Center and Fremont Canyon, 0.2 mi. above Peters Cyn. Rd. 193 Comment
  CAS-BOT-BC233669  Salvia leucophylla C. B. Wolf 1943-6-8 11449 Orange Rancho Santa Ana Botanic Garden 198 Comment
  RSA434143  Salvia mellifera F. R. Fosberg 1931-6-21 S- 5141 Orange Silverado Canyon. Santa Anita Mts. Comment
  RSA733967  Salvia mellifera Keith E. Hoffmaster 1927-4-8 424 Orange Santa Ana Mountains. Comment
  UC1124830  Salvia mellifera A. Lewis May 1934 429 Orange Los Pinos Peak; Cleveland National Forest, Elsinore Quad. 1310 Comment
  UCR106308  Salvia mellifera B. G. Pitzer, M. Georgiady 1997-4-5 3098 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
  UCR159776  Salvia mellifera Peter A. Bowler 2003-4-20 s.n. Orange Southern Coastal, UC San Joaquin Freshwater Marsh Reserve; bluffs along NW edge of marsh 9 Comment
  POM4055  Salvia spathacea I. M. Johnston 1918-5-4 951 Orange Hills back of Laguna Beach. 30 Comment
  RSA3157  Sambucus mexicana C. B. Wolf 1931-7-24 2292 Orange lower end of Carbon Canyon. 152 Comment
  RSA477580  Sambucus mexicana Claire Kibbe 1936-07 s.n. Orange Santa Ana Canyon. 1372 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
  UCR193789  Sambucus mexicana A. C. Sanders, Fred M. Roberts 2008-7-3 35691 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along Windy Ridge Rd. at hairpin turn/road junction below huge sandstone boulder (visible on Google Earth), 1.2 mi. SE of Walnut Canyon Reservoir 285 Comment
  UCSB48089  Sambucus nigra subsp. caerulea Roberts, Fred 1981-5-2 Orange Mission Viejo; Camino Capistrano, 1.7 km. N Crown Valley Parkway 49 Comment
  UCR220955  Sanicula arguta Dick Newell, Don Millar 2010-3-16 012 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, above Agua Chinon at Box Canyon Rd, 2.81 miles north of Hwy 241 toll road and 2.77 miles east of 133 toll road 427 Comment
  UCD127973  Sanicula crassicaulis P. B. Kennedy 1925-1-12 s.n. Orange Irvine Range. Comment
  UCR256938  Sanicula crassicaulis Naomi Fraga, Duncan S. Bell 2009-5-11 2722 Orange Peninsular Range; Santa Ana Mountains, Chiquita Trail, Lion Canyon 762 Comment
  RSA471472  Sanicula crassicaulis Christopher Davidson 1977-5-18 5636 Orange Cleveland National Forest, Falcon campground. 1006 Comment
  HSC66534  Sanicula graveolens Christopher Davidson 1977-5-18 5606 Orange Santa Ana Mts. Cleveland Nat. Forest. Santiago Peak (on Orange-Riverside Co. line). 1707 Comment
  CDA1078  Schinus terebinthifolius D. G. Kelch 2006-12-9 6 .572 Orange Irvine. University Dr along tidal creek just E of I-73. Comment
  UCR217463  Schinus terebinthifolius Mark A. Elvin 2003-2-23 2310 Orange South Coast, Irvine, San Joaquin Marsh along the berm of San Diego Creek 3 Comment
  UCR80006  Schinus terebinthifolius Scott D. White 1992-10-1 952 Orange City of Brea, immediately north of Carbon Canyon Road & east of Placentia Ave. c. 1 mi (airline) S-SE of Tonner Canyon. 183 Comment
  CAS-BOT-BC243419  Schismus barbatus Ira L. Wiggins 1966-2-18 20448 Orange Roadside 1/2 mi. W of entrance to Rancho Santa Ana, near end Orange County road at end of Orangethorpe Avenue Comment
  RSA797601  Schoenoplectus Robert F. Thorne 1977-11-21 49998 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs Comment
  RSA0070787  Schoenoplectus acutus CNPS Accuracy Assessment Team 2014-4-30 9268 Orange Peters Canyon Regional Park. Comment
  RSA731915  Schoenoplectus americanus Fred M. Roberts, Sandy Leatherman 2007-11-27 6664 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
  RSA0059074  Schoenoplectus americanus CNPS Accuracy Assessment Team 2014-7-9 9308 Orange Upper Newport Bay Nature Reserve. Comment
  POM18286  Schoenoplectus californicus I. M. Johnston 1924-7-10 s.n. Orange Laguna Canyon. Comment
  POM202034  Schoenoplectus californicus L. M. Booth 1932-6-9 1176 Orange Santa Ana River, 1 mile from ocean. Comment
  UCR258354  Schoenoplectus californicus Fred M. Roberts 2014-4-21 7873 Orange South Coast, SAN JOAQUIN HILLS: Laguna Lake 1 (Upper Laguna Lake), south basin 113 Comment
  RSA0059073  Schoenoplectus californicus CNPS Accuracy Assessment Team 2014-7-7 9313 Orange San Joaquin Freshwater Marsh Reserve. Comment
  RSA5934  Schoenoplectus californicus Carl B. Wolf 1932-7-7 3862 Orange Opposite the Bryant Ranch: on N side of Bryant Avenue, 0.5 mile east of Los Alamitos Boulevard near Los Alamitos. 8 Comment
  RSA623978  Schoenoplectus californicus K. Scott 1921-3-5 s.n. Orange Modjeska s Dam. Comment
  RSA234489  Schoenoplectus maritimus James Henrickson 1970-7-25 5080 Orange 3.5 miles NW of Huntington Beach growing along graded inner slope of East Garden Grove-Wintersburg Flood Control Channel near Bolsa Chica Salt Marsh. At sea level. 0 Comment
  POM47587  Schoenoplectus maritimus I. M. Johnston 1924-8-29 s.n. Orange 4 miles N of Balboa. Comment
  JEPS75309  Scirpus americanus L. M. Booth 1932-5-24 1103 Orange Newport Bay 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
  RSA732149  Scrophularia californica A. C. Sanders, Fred M. Roberts 2008-4-22 s.n. 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
  UCR191024  Scrophularia californica A. C. Sanders, Fred M. Roberts 2008-4-22 35014 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hicks Canyon haul road, just above Irvine Ranch gate and road to cement plant, c. 1 mile NE of Rattlesnake Reservoir 244 Comment
  UCR234150  Scrophularia californica Dick Newell, Judy Booth 2012-3-30 240 Orange Peninsular Range; Santa Ana Mtns., Maple Springs Road, Cleveland National Forest 258 Comment
  POM4224  Scrophularia californica subsp. floribunda Robinson, Crocker 1916-3-28 s.n. Orange Santa Ana Mts. Comment
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Sep 3 2011
  UC1618101  Scutellaria tuberosa Donald G. Nelson 1935-7-6 258 Orange San Juan Canyon Comment
  RSA723967  Secale cereale R. E. Riefner 2004-5-1 04 -154 Orange City of Irvine; Jeffrey Rd. near Bryan Rd. 73 Comment
  CAS-BOT-BC61966  Selaginella John Thomas Howell 1937-7-22 2834 Orange Claymine Canyon, Santa Ana Mts. 182 Comment
  RSA16  Selaginella bigelovii John Thomas Howell 1927-7-28 506 Orange Nolina Canyon, Rancho Santa Ana 152 Comment
  RSA749437  Selaginella bigelovii Fred M. Roberts 2008-4-14 6891 Orange Santa Ana Mtns.: Upper Weir Cyn., east fork, 3.4 km E Robbers Peak, Irvine Ranch Conservancy. 433 Comment
  UC534961  Selaginella bigelovii John Thomas Howell 1927-7-22 2834 Orange Claymine Canyon; Santa Ana Mts. 182 Comment
  RSA700251  Selaginella cinerascens Fred M. Roberts 2003-5-1 5675 Orange Rancho Mission Viejo: Donna O Neill Land Conservancy, Cristianitos Cyn., 0.5km SSW Gato Gate and 0.1km west of Cristianitos Rd. 99 Comment
  UCSB52921  Senecio aphanactis Roberts, Fred 1983-3-10 Orange Dana Point Headlands: north of Scenic Dr., 0.5 km W Dana Point Harbor; 0.7km SSW Richard Henry Dana School 79 Comment
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Dec 12 2018
  RSA737542  Senecio californicus Fred M. Roberts 2008-3-12 6719 Orange Dana Point: Dana Point Headlands CNLM Preserve, western side, c.a. 0.8 km W Marine Institute (Dana Point Harbor). 50 Comment
  UC566656  Senecio californicus H. L. Mason 1926-4-25 2908 Orange five mi s Laguna Comment
  UC718547  Senecio californicus P. C. Everett 1935-3-15 6294 Orange near corner post 3938 (Rancho Santa Ana, Santa Ana Canyon); Rancho Santa Ana, Santa Ana Canyon 182 Comment
  RSA0012668  Senecio californicus J. T. Howell 1928-2-25 849 Orange Nolina Canyon, Rancho Santa Ana. 152 Comment
  RSA450842  Senecio californicus J. B. Anderson 1966-2-26 413 Orange San Joaquin Hills: South facing slope at head of Moro Canyon along jeep road 244 Comment
  SEINET7067533  Senecio flaccidus 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
  RSA700498  Senecio linearifolius Scott D. White 2004-6-7 10606 Orange S Coast; Laguna Miguel. Along Pacific Island Dr. 61 Comment
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Oct 23 2007
  UCR128686  Senecio linearifolius Robert Noll 2003-8-20 s.n. Orange Southern Coastal region, Irvine, UCI campus, near intersection of Culver and Shady Canyon Roads 76 Comment
  UCR200664  Senecio linearifolius Daniel Sanchez-Mata 2006-7-1 s.n. Orange Laguna Niguel, Dana Point Highlands, Crown Valley Parkway at Pacific Island Drive 70 Comment
  UCD64189  Senecio linearifolius var. linearifolius Daniel Sanchez-Mata 2006-7-1 s.n. Orange Laguna Niguel. Dana Point Highlands. Crown Valley Parkway-Pacific Island Drive. 70 Comment
  RSA743379  Senecio vulgaris Fred M. Roberts 2008-4-9 6859 Orange Dana Point: Dana Point Headlands, CNLM Preserve near Outlook 2, 0.7 km W Marine Institute (Dana Point Harbor). 52 Comment
  SD247606  Senecio vulgaris R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49646 Orange Northeern Santa Ana Mountains; Coal Canyon (NW of Sierra Peak). Comment
  UCR130358  Senna didymobotrya A. C. Sanders, Mark A. Elvin 2003-10-12 27315 Orange Southern Coastal Slope, Irvine, UCI Arboretum, UCI campus near intersection of Jamboree Blvd. and Campus Dr. 15 Comment
  UCR266420  Senna didymobotrya D. E. Bramlet 2009-11-13 4415 Orange South Coast, San Diego Creek between Irvine and Newport Back Bay 8 Comment
  UCR266664  Senna marilandica Fred M. Roberts, Sandra L. 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
  POM201707  Sesuvium verrucosum L. M. Booth 1932-7-4 s.n. Orange Newport Lagoon. Comment
  UCR76075  Sidalcea malviflora B. G. Pitzer, Stu Hemstreet 1992-5-27 1950 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, along Forest Service Road 3S04 to Blue Jay Group Campground, off Hwy 74 (Ortega Hwy), c. 2 mi west of El Cariso Campground 765 Comment
  RSA432756  Sidalcea malviflora Christopher Davidson 1977-5-18 5635 Orange Cleveland National Forest, Falcon campground. 1006 Comment
  RSA701970  Sidalcea malviflora subsp. malviflora Fred M. Roberts, David E. Bramlet 2003-6-20 5928 A Orange Rancho Mission Viejo: Donna O Neill Land Conservancy, tributary to Christianitos Cyn, along Back Road, 1.48 km WNW Sycamore Gate. 189 Comment
  RSA0040089  Sidalcea neomexicana Sandra Leatherman 2014-3-18 2014 -1 Orange Santa Ana Mountains region: South Orange County; northeast of Antonio Parkway and Sendero Way; adjacent to the Chiquita Reclamation Plant access road. 76 Comment
  RSA88053  Sidalcea neomexicana subsp. thurberi C. L. Hitchcock 1952-5-30 s.n. Orange About 100 yards north of Katella Ave. to west of Hanson St., about 11 miles east of Long Beach Comment
  CAS-BOT-BC384501  Silene antirrhina LeRoy Abrams 1903-4-18 3272 Orange Trabuco arroyo, near Capistrano Comment
  UCR191354  Silene antirrhina A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34641 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
  UCR238213  Silene antirrhina Mark A. Elvin 2003-3-30 2384 Orange South Coast, north side of UC Irvine Preserve, between core of UCI campus (E Peltason Dr.) and Hwy 73 69 Comment
  IRVC25469  Silene gallica Fred M. Roberts 1987-4-21 3778 Orange Aliso Creek, Aliso Creek Bike Trail, 3.0km ENE Moulton Peak, Aliso Viejo 73 Comment
  RSA683063  Silene gallica Fred M. Roberts 2003-3-19 5611 Orange Donna O Neill Land conservancy: Tributary W of Cristianitos Cyn., 1,625m NNW Sycamore Gate and 483m W Cristianitos Rd. 174 Comment
  UCR281559  Silene gallica Mitch Provance, Jeremiah George 2017-3-20 317- 112 Orange West Coyote Hills, Fullerton, vicinity of Utility Access Roads E of Gilbert Street and N of Castlewood Dr., on land previously occupied by oil fields. 137 Comment
  RSA650328  Silene gallica Diane T. Liggett 1981-5-16 7 Orange Riverside Freeway (91) east to Imperial Hwy, south to Nohl Ranch Road, east to Serrano Ave., south on Hidden Cyn. Road, 1 km into Weir Cyn. Comment
  UCSB47971  Silene gallica Roberts, Fred 1980-2-17 Orange Dana Bluffs; along Scenic Drive Rd.; NW and above Dana Point Harbor, Dana Point 58 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
  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
  RSA696563  Silene laciniata subsp. major Minor Warne 1934-5-19 s.n. Orange Live oak Canyon. Comment
  RSA16488  Silene verecunda subsp. platyota Percy C. Everett 1935-6-18 16488 Orange Santa Ana Mts., summit of Santiago Pk. 1732 Comment
  POM196703  Sinapis alba E. Johnson 1930-3-1 s.n. Orange N of El Modeno Comment
  UC1929781  Sinapis arvensis Scott D. White, Amanda Duchardt 2003-3-27 8849 Orange SANTA ANA MOUNTAIN FOOTHILLS: Canyon bottom and west facing slopes above Canada Gobernadora. Comment
  IRVC1168  Sisymbrium altissimum L. Lewton 1965-3-22 Orange [Newport] Back Bay Newport Beach Comment
  IRVC1169  Sisymbrium altissimum T. Baskin 1965-4-9 Orange Corona del Mar High School. Newport Beach Comment
  RSA792476  Sisymbrium irio Justin M. Wood 2011-2-28 3267 Orange South Coast: Santa Ana River, marsh just upstream of Pacific Coast Highway. Plants collected throughout the marsh and along the adjacent bike path. 0 Comment
  UCSB48099  Sisymbrium irio Roberts, Jr., Fred 1981-4-11 Orange Ortega Hwy.; Hwy. 74, 5.2 km. E San Juan Capistrano near San Juan Creek crossing 52 Comment
  RSA696105  Sisymbrium irio Keith E. Hoffmaster 1928-2-19 387 Orange Tustin, Santa Ana. Comment
  IRVC1189  Sisymbrium orientale D. Pfirrmann 1965-4-21 Orange 2179 Orange Ave. Costa Mesa Comment
  RSA366971  Sisyrinchium bellum M. B. Dunkle 1938-3-26 5232 Orange San Juan Canyon 30 Comment
  RSA732226  Sisyrinchium bellum A. C. Sanders, Fred Roberts 2008-4-22 35029 Orange Santa Ana Mtns.: Lomas de Santiago, Limestone Canyon, c. 2 miles SW of Silverado 1200 Comment
  UCR241899  Sisyrinchium bellum Fred M. Roberts 2012-4-24 7536 Orange Peninsular Ranges; coastal foothills, San Joaquin Hills, Buck Gully, above main trail, 2 km W Signal Peak and about 0.4 km S San Joaquin Hills Road 155 Comment
  UCSB13383  Sisyrinchium bellum Whittington, M. 1962-4-20 Orange Modjeska grade road; between Modjeska and Trabuco Canyon Comment
  RSA503163  Sisyrinchium bellum Gary D. Wallace, G. Cromwell 1966-4-16 471 Orange Along coast highway; north of Camp Pendleton. Comment
  RSA759373  Sisyrinchium rosulatum Robt. Allen 2008-4-9 s.n. Orange Irvine, Irvine Valley College, near SW corner of A-400 building. 53 Comment
  RSA79906  Solanum americanum F. W. Peirson 1924-2-9 4523 Orange Between Wintersberg and the sea. Comment
  POM201715  Solanum douglasii L. M. Booth 1932-5-19 1075 Orange Newport Bay. Comment
  RSA549241  Solanum douglasii Scott D. White 1992-9-29 845 -a Orange Vicinity of City of Brea, immediately N of Carbon Canyon Road and E of Placentia Avenue, +/- 1 mi (airline) S/SE of Tonner Canyon. 183 Comment
  RSA747697  Solanum douglasii Fred M. Roberts 2008-4-16 6915 Orange Dana Point: Dana Point Headlands, CNLM Preserve, near Strands Road Gate, 0.8km WNW Marine Institute, Dana Point Harbor. 71 Comment
  UCR100461  Solanum douglasii B. G. Pitzer 1996-4-30 2762 Orange South Coast, Upper Newport Bay, Calif. Dept. Fish & Game Ecological Reserve, off (W of) Jamboree Road 6 Comment
  UCR99872  Solanum douglasii Scott D. White 1993-3-5 1117 Orange Tustin. Marine Air Corps Air Station: SE of Red Hill Ave and NE of Barranca 15 Comment
  RSA0020074  Solanum douglasii Stephen Bruff s.n. Orange Lemon Heights. Comment
  RSA0020076  Solanum douglasii Keith E. Hoffmaster 1927-5-15 533 Orange Santa Ana Comment
  RSA0045320  Solanum douglasii G. Jentges 1932-4-30 68 Orange Wash near railroad track. Comment
  POM311835  Solanum lanceolatum Karen Hosterman 1957-1-19 825 Orange Laguna Beach City, near cultivated area. 11 Comment
  UCSB56515  Solanum lanceolatum Marsh, G.; Marsh, K. 1976-4-8 Orange Tustin, First Street Comment
  HSC21322  Solanum umbelliferum S. M. Clapp 1966-4-7 19 Orange 3 mi. from Modjeska Canyon towards Silverado Canyon 152 Comment
  RSA2067  Solanum umbelliferum Carl B. Wolf 1931-3-6 1862 Orange North of base of Trabuco Modjeska Grade, west slope of Santa Ana Mts. 305 Comment
  RSA507482  Solanum umbelliferum Jeri Hirshberg 1988-6-7 s.n. Orange Santa Ana Mountains, head of Gypsum Canyon 412 Comment
  RSA733735  Solanum umbelliferum Jeanne Paxton 1934-2-25 s.n. Orange Sugar Loaf Canyon, Arch Beach Comment
  UCR192098  Solanum umbelliferum A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35284 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir 300 Comment
  RSA627525  Solanum umbelliferum Sandy Leatherman, Fred M. Roberts, B. Leatherman, Trish Smith 1998-5-22 25 Orange Black Star Canyon: Spur Rd. off of Black Star Canyon Rd. Area burned during spring 1998. 335 Comment
  SD247738  Solanum xanti R. F. Thorne, C. W. Tilforth, E. W. Lathrop. 1977-4-27 49696 Orange Northern Santa Ana Mountains: Sierra Peak. Comment
  RSA788807  Solidago californica R. F. Thorne 1977-11-21 49980 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp Comment
  UCR193846  Solidago californica A. C. Sanders, Fred M. Roberts 2008-7-16 35853 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, upper Hangmans Tree Canyon 395 Comment
  UCR250137  Solidago velutina subsp. californica Dick Newell, Judy Booth 2013-11-17 342 Orange Peninsular Range; Santa Ana Mtns., Maple Springs Rd., Cleveland National Forest, 1.5 mil. NE of Maple Springs gate 701 Comment
  RSA947  Sonchus asper J. T. Howell 1928-4-7 903 Orange Santa Ana River bottom, Rancho Santa Ana 152 Comment
  POM202168  Sonchus oleraceus L. M. Booth 1932-7-21 1297 Orange Near Sunset Beach, Anaheim Marsh. Comment
  IRVC23156  Sorghum halepense Fred M. Roberts 1985-7-11 2016 Orange San Joaquin Hills: Laguna Canyon, Laguna Canyon Road near Laguna Lakes, 5.0km ENE Signal Peak. southern coastal 112 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
  SEINET10487736  Spartium junceum David B. Dunn 1971-8-13 Dunn 18128 Orange Cultivated plants vicinity of laguna beach so called scotch broom. Comment
  UCR163307  Spergularia B. G. Pitzer 1996-4-30 2791 Orange San Joaquin Hills, Crystal Cove State Park, south of City of Irvine on State Hwy 1 (Pacific Coast Hwy) 15 Comment
  IRVC20156  Spergularia bocconii R. L. Allen 1978-4-1 Orange 60m NE Golden Lantern [and Acapulco Rds.] jct. Dana Point Comment
  RSA0098513  Spergularia marina Fred M. Roberts, Sandy Leatherman 2007-11-27 6693 Orange Yorba Linda: drainage channel on east side of Amberdale Dr. ca. 0.3 km S Fairmont Blvd. 118 Comment
  RSA0098514  Spergularia marina Valerie Soza, Kevin B. Clark, LeRoy Gross, Will Miller, Fred Roberts, Gary Wallace 2001-4-4 1122 Orange Seal Beach U. S. Naval Weapons Station, southwestern edge of Seal Beach National Wildlife Refuge. 3 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
  POM6346  Spergularia salina P. A. Munz, L. T. Street, G. Williams 1919-5-4 2682 Orange Laguna Comment
  SD104869  Spergularia villosa Darley Howe 1979-6-29 Orange Newport area. Comment
  RSA74867  Spergularia villosa Elroy Robinson 1936-6-26 s.n. Orange El Torro, dry hard soil along Santa Fe Railway Comment
  IRVC26743  Spiloxene ovata Mark A. Elvin, J. Liou, J. Carpenter, J. Nguyen 2004-3-8 3161 Orange UCI Arboretum Southern Coastal 15 Comment
  RSA680  Stachys ajugoides J. T. Howell 1927-6-30 246 Orange Bryant Ranch near Long Beach. 15 Comment
  RSA754065  Stachys ajugoides A. C. Sanders, Fred M. Roberts 2008-7-16 35834 Orange Lomas de Santiago, Dripping Springs off Limestone Canyon, c. 7.5 mi. ESE of Tustin. 391 Comment
  JEPS62961  Stachys ajugoides L. M. Booth 1932-5-19 Orange Newport Bay Comment
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Oct 19 2017
  RSA571521  Stachys ajugoides var. rigida Steve Boyd, D. L. Banks 1994-4-5 8276 Orange Southern Santa Ana Mountains along the ridgeline between Lucas and Verdugo Canyons west of Verdugo Potrero, near transit point Lucas . 427 Comment
  UCSB52461  Stachys rigida Roberts, Fred 1982-5-22 Orange Dana Point; jct. of Stone Hill & Selva rds; 1.0km ESE Dana Hills High School; I.7km SW Marco Forster Junior High School 40 Comment
  RSA446585  Stachys rigida subsp. quercetorum Unspecified 1920-6-1 s.n. Orange Laguna. Comment
  RSA0127596  Stachys rigida var. quercetorum Fred M. Roberts 2016-3-17 8026 Orange San Joaquin Hills: City of Irvine, west slope, Bommer Canyon along Turtle Ridge Trail, 0.8 km NE Signal Peak and 0.9 km SW Cattle Camp. 265 Comment
  SEINET9330188  Stachys rigida var. quercetorum Unknown 2011-9-27 39913 Orange Orange Co., CA Comment
  UCR247899  Stachys rigida var. rigida Fred M. Roberts 2013-6-12 7795 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
  RSA131400  Stachys stebbinsii E. K. Balls 1958-6-27 23281 Orange 4.4 miles from Silverado (gate), Silverado Canyon, Santa Ana Mountains. 1021 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
  OBI5678  Stellaria media Carl B. Wolf 1931-3-6 1854 Orange Trabuco camp ground, Trabuco cyn, W slope of the Santa Ana Mts 610 Comment
  POM172035  Stenotaphrum secundatum F. M. Reed 1929-12-19 6711 Orange Arch Beach, Laguna Comment
  CAS-BOT-BC227698  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
  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
  UCR80004  Stephanomeria diegensis Scott D. White 1992-10-20 969 Orange Vicinity of city of Brea, Immediately north of Carbon Canyon Rd & east of Placentia Avenue +-1mi (air) SSEof Tonner Canyon. 183 Comment
  UCR210366  Stephanomeria virgata subsp. virgata T. B. Salvato, Billy Deane 2006-10-16 1944 Orange South Coast, Irvine, San Diego Creek flood control channel, between Michelson Drive and the 405 FWY 12 Comment
  UCR106284  Stipa lepida B. G. Pitzer, M. Georgiady 1997-4-5 3071 Orange San Joaquin Hills, Crystal Cove State Park, along 'No Dogs' Trail (from parking area, along western bottom edge of ridge between Muddy Canyon & Moro Canyon), to just below intersection with 'Poles' trail 152 Comment
  UCR2804  Stipa lepida F. M. Reed 1928-7-10 6579 Orange Sidewalk in Laguna Beach 0 Comment
  UCR98243  Stipa lepida Scott D. White 1997-3-28 4839 Orange Santa Ana Mountains, Above Modjeska Canyon, proposed water tank site. 488 Comment
  UCR191474  Stipa pulchra A. C. Sanders, Fred M. Roberts 2008-4-8 34741 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, head of Hicks Canyon, S of Santiago Reservoir 351 Comment
  UCR281545  Stylocline gnaphaloides Mitch Provance, Jeremiah George 2017-3-20 317- 116 Orange West Coyote Hills, Fullerton, vicinity of Utility Access Roads E of Gilbert Street and N of Castlewood Dr., on land previously occupied by oil fields. 137 Comment
  POM413  Stylomecon heterophylla P. A. Munz 1918-5-4 2171 Orange Laguna. Comment
  CAS-BOT-BC48095  Styrax redivivus Frank W. Peirson 1923-5-5 3493 Orange Trabuco Canyon, Santa Ana Mts. - Near canyon bottom in shade. Comment
  CAS-BOT-BC48096  Styrax redivivus C. B. Wolf; B. D. Stark 1932-12-19 10014 Orange Main divide of Santa Ana Mts., between Sierra Peak & Skyline Drive. 914 Comment
  SD122676  Styrax redivivus Reid Moran 1979-5-9 27196 Orange north slope San Juan Canyon, Santa Ana Mountains 380 Comment
  UC2042133  Styrax redivivus R. F. Thorne and C. W. Tilforth, E. W. Lathrop 1977-4-27 49686 Orange Northern Santa Ana Mountains: Sierra Peak. [locality information from field label; note on newspaper 'near Beek's Place, Skyline Drive crest, MDT Trail' (Main Divide Truck Trail) Comment
  UCD170074  Styrax redivivus R. F. Thorne; E. W. Lathrop, W. Wisura 1977-7-8 49598 Orange Santa Ana Mountains: rocky ravine tributary to San Juan Canyon, along Ortega Highway (74) about 2 miles above San Juan Fire Station. 345 Comment
  POM202055  Suaeda calceoliformis L. M. Booth 1932-8-5 1353 Orange West Newport Beach. Comment
  UC116539  Suaeda calceoliformis S. B. and W. F. Parish Oct 1882 1598 Orange Santa Ana Comment
  IRVC23985  Suaeda calceoliformis R. De Ruff 1988-6-5 Orange Newport Backbay, road just east of Shellmaker Island, Newport Beach 0 Comment