Search Results — 2000 specimen records retrieved (1583 records with coordinates)
(That's the default maximum. Contact Jason Alexander for larger data requests.)

Results for search: County=ORANGE; Source=All;   

Mapping Options:

BerkeleyMapper with county and bioregion layers
BerkeleyMapper without layers.
KML export
(Note: only records with coordinates are mappable)

Download Options:
Select all records · Select records with coordinates

Include annotations and voucher information

PLEASE NOTE: Due to changes in newer versions of Excel, directly copying text from the above selected results does not produce a usable table.
    Follow these steps:
      1. The contents of the selected results window must be copied into a text editor like TextEdit for Mac or WordPad for Windows
      2. The selected results must be saved as a new text document.
      3. This new text document can now be copied into Excel or imported as a tab delimited text file.

(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.

Click on column header to sort data (* sorts by family); click in leftmost checkbox to select record. CCH Help Page.
Turn on yellow flags to show possible range discrepancies. Read more ...
? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  POM201767  Abronia maritima L. M. Booth 1932-5-25 1113 Orange Balboa Island, Newport Bay. Comment
  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
  RSA69973  Abronia maritima F. W. Peirson 1921-1-9 2352 Orange Balboa, near south end of beach Comment
  SD41424  Abronia maritima Edith A. Purer 1932-8-31 4880 Orange Sand dunes along Route 101. Comment
  HSC16138  Abronia umbellata B. Francis 1964-5-2 41 Orange Newport Beach Comment
  RSA461004  Abronia umbellata William Greenberg 1939-7-20 20519 Orange Newport Beach Comment
  RSA461006  Abronia umbellata E. S. Spalding 1923-12-1 s.n. Orange Opposite San Juan Capistrano 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
  UC101373  Abronia villosa C. F. Baker 1903-4-1 4125 Orange Anaheim Comment
  RSA727606  Abutilon palmeri R. E. Riefner Jr. 2006-9-5 06 -418 Orange Southern Coast: Corona del Mar, Ocean Blvd. Near Iris Ave. 11 Comment
  UCR140879  Acacia cyclops Robert DeRuff 1987-1 294 Orange Southern Coast, Newport Beach, Upper Newport Bay, on Castaway's Bluff 24 Comment
  IRVC29869  Acacia cyclops Mark A. Elvin, Dean Kelch 2006-12-9 5291 Orange Newport Backbay; Big Canyon, lower end. Southern Coastal 3 Comment
  CAS-BOT-BC333254  Acer macrophyllum Le Roy Abrams 1901-6-15 1819 Orange South Fork Santiago Creek 914 Comment
  UCSB47632  Acer macrophyllum Roberts, Fred 1980-5-3 Orange 2.2km SE Trabuco Peak, Santa Ana Mtns 1234 Comment
  RSA539341  Achnatherum coronatum Fred M. Roberts, Karlin G. Marsh 1989-3-7 4193 Orange Lomas de Santiago: Loma Ridge, Hicks Canyon, 2.3km W Bee Survey Mark., UTM 37 32 200mN, 4 32 900mE 165 Comment
  RSA631402  Achnatherum coronatum Valerie L. Soza, LeRoy Gross 1999-6-7 491 Orange West side of Modjeska Peak, along Main Divide Road. 1448 Comment
  UCD50307  Achnatherum coronatum Elizabeth Wilson 1929-6-28 s.n. Orange Cleveland National Forest. Orange and Riverside County. Comment
  SBBG103893  Acmispon americanus B. Pitzer, S. Hemstreet 1992-5-27 1966 Orange USFS Rd 3S04 to Blue Jay Group Cmpgrd, off St Hwy 74, ca. 2 air mi W of El Cariso Cmpgrd 762 Comment
  RSA0073642  Acmispon glaber var. glaber Fred M. Roberts 2010-3-12 7180 Orange Southeast Coast: DANA POINT HEADLANDS: Harbor Point Park, South of Green Lantern and west of Dana Point Harbor, c.a. 150 meters SE Interpretive Center. 50 Comment
  RSA0127414  Acmispon glaber var. glaber Fred M. Roberts 2016-3-17 8009 Orange San Joaquin Hills: City of Irvine, Bommer Canyon, east fork, 0.3 km ESE Cattle Camp near East Fork Trail. 152 Comment
  SEINET2429609  Acourtia microcephala Lawrence M. Booth 1932-7-4 1243 Orange Newport Lagoon Comment
  UC1544779  Adenostoma fasciculatum D. S. Seigler and E. Rodriguez 1978-5-13 11003 Orange Trabuco Canyon Comment
  RSA357  Adenostoma fasciculatum var. fasciculatum J. T. Howell 1928-4-15 919 Orange East boundary of the Rancho Santa Ana 229 Comment
  RSA739279  Adiantum capillus-veneris R. E. Riefner 2008-7-9 08 -228 Orange Orange County: city of Newport Beach, N Star Beach, vicinity of N Star Ln and White Cliffs Dr. 4 Comment
  RSA0008824  Adiantum jordanii J. T. Howell 1927-6-24 197 Orange Aliso Canyon, Rancho Santa Ana. 274 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
  RSA695488  Ageratum houstonianum M. Funakoshi 1941-10-23 s.n. Orange Santa Ana. Comment
  NY7051  Agoseris cinerea L. Abrams 1901-6-15 1816 Orange Santiago Peak trail. 914.4 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
  RSA798594  Agoseris retrorsa R. F. Thorne, E. W. Lathrop 1977-5-18 49748 Orange Santa Ana Mountains: summit of Santiago Peak 1733 Comment
  UCR228792  Agoseris retrorsa Dick Newell, Don Millar 2011-5-8 146 Orange Peninsular Range; Santa Ana Mtns., Maple Spring Rd., Cleveland National Forest 1173 Comment
  CAS-BOT-BC127479  Agrostis capillaris Ira L. Wiggins 1965-10-24 20291 Orange Roadside at corner of Yorba LInda and State College Boulevards, Fullerton. Comment
  RSA0013960  Agrostis pallens Fred M. Roberts 2008-5-14 6968 Orange Lomas de Santiago: Loma Ridge, upper Bee Flat Cyn. below Loma Ridge Rd., 1.3 km N Bee Peak and 5.4 km NW Bolero Lookout, Irvine Ranch Conservancy. 377 Comment
  RSA17144  Agrostis pallens C. B. Wolf 1936-6-17 7945 Orange Santa Ana Mountains, along Ortega Highway 5.6 miles above San Juan Capistrano. 76 Comment
  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
  RSA414866  Albizia lophantha Albert J. Perkins 1914-1-1 s.n. Orange Between (illegible) Beach and Aliso Canyon. Comment
  RSA588772  Alchemilla occidentalis Fred M. Roberts, Carol A. Roberts, D. E. Bramlet 1990-5-6 4592 Orange Santa Ana Mnts.: Chiquito Basin, San Juan Trail, c.a. 2.5 km SSE Los Pinos Peak. 915 Comment
  CAS-BOT-BC135854  Allium haematochiton P. C. Everett; E. R. Johnson 1935-5-29 7093 Orange Santa Ana Mts., head of Claymine Canyon 731 Comment
  RSA366464  Allium haematochiton M. B. Dunkle 1933-3-5 3085 Orange San Juan Canyon. Comment
  IRVC27140  Allium haematochiton Mark A. Elvin 2005-2-8 3988 Orange UCI Arboretum Southern Coastal 15 Comment
  RSA678523  Allium monticola Fred M. Roberts, David E. Bramlet 2002-6-6 5526 Orange Main Divide Truck Trail, west slope of Modjeska Peak, 0.4km WNW summit. 1457 Comment
  POM122474  Allium praecox Marcus E. Jones 1923-3-13 s.n. Orange Santa Ana Canon. Comment
  POM6476  Allium praecox Philip A. Munz, L. T. Street, Williams 1919-5-3 2635 Orange Santa Ana River Canyon. Comment
  RSA681018  Allium praecox Fred M. Roberts, David E. Bramlet 2003-3-7 5568 Orange Donna O Neill Land Conservancy; Ridge west of Christianitos Canyon, Middle Ridge Trail, 1.1km NW Gato Gate. 178 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
  UCD169758  Allophyllum glutinosum R. F. Thorne; E. W. Lathrop, W. Wisura 1977-7-8 49604 Orange Santa Ana Mountains: rocky ravine tributary to San Juan Canyon, along Ortega Highway (74) about 2 miles above San Juan Fire Station. 290 Comment
  RSA759103  Allophyllum glutinosum Robt. Allen, Genevieve Walden 2008-6-26 s.n. Orange Modjeska Peak, Western Arm, adjacent to junction of Main Divide Truck Trail and Old Truck Trail up to the summit of Modjeska Peak 1538 Comment
  SD245425  Allophyllum glutinosum Robert Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49604 Orange Santa Ana Mountains: rocky ravine tributary to San Juan Canyon, along Ortega Highway (74) about 2 miles above San Juan Fire Station. Comment
  SEINET2444446  Allophyllum glutinosum Steve Boyd, Tim Ross 1992-5-20 7452 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). 305 Comment
  OBI6021  Alnus rhombifolia Carl B. Wolf 1931-3-6 1855 Orange Trabuco camp ground, Trabuco cyn, W slope of Stana Ana Mts 610 Comment
  POM177826  Alnus rhombifolia Marcus E. Jones 1930-1-26 26226 Orange Wildwood Camp, Santa Ana River. Comment
Read comments
Nov 18 2013
  RSA696334  Alnus rhombifolia R. H. McArthur 1934-2-10 s.n. Orange Santiago Canyon above Modjeska Comment
  UCR231356  Alnus rhombifolia A. C. Sanders, Kent Beaman 2011-9-27 39910 Orange Peninsular Range; Santa Ana Mtns., Maple Springs Truck Trail, 3.4 km NNW (340 deg. ) of Santiago Peak 1088 Comment
  UCR234157  Alnus rhombifolia Dick Newell, Judy Booth 2012-3-25 233 Orange Peninsular Range; Santa Ana Mtns., Maple Springs Road, 1.5 miles above Maple Springs entrance 615 Comment
  UCR239642  Alnus rhombifolia Fred M. Roberts 2012-5-9 7557 Orange Santa Ana Mountains, Lake Forest, along Serrano Creek hiking trail, 1.0 m south-southwest of intersection of Commercentre and Dimension Drives 171 Comment
  SD153014  Aloe chabaudii Steve Boyd, T. Ross 1992-5-20 7470 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area, western edge of wilderness in Lucas Canyon, about old mining habitations in side canyon, upstream Ao mile from Lucas Canyon Trail crossing. 390 Comment
  CLARK-A1528-917  Amaranthus albus Patricia A. Andrews 1975-6-26 5914 Orange Capistrano Bay Beach 9 Comment
  HSC79612  Amaranthus blitoides James Henrickson 1972-10-21 8069 Orange Newport Beach, S of Jamboree Rd., E of Irvine Coast Country Club near U.C. Irvine. 46 Comment
  RSA696429  Amaranthus blitoides Keith E. Hoffmaster 1933-10-1 334 Orange Near Tustin Comment
  UCD97207  Amaranthus blitoides Ira L. Wiggins 1965-10-18 20274 Orange NE corner of Chapman Ave. and Victor Dr. Fullerton. Comment
  RSA542441  Amaranthus deflexus Fred M. Roberts 1988-10-21 4161 Orange Irvine: Michelson bridge at San Diego Creek. 4 Comment
  UCR25292  Amaranthus palmeri Alfred R. Roos 1937-12-9 s.n. Orange West 17th St. in Santa Ana Comment
  UCR188935  Amaryllis belladonna Robert DeRuff 2004-8-13 551 Orange Newport Beach, Upper Newport Bay, vicinity of Castaways Park just north of Pacific Coast Hwy 5 Comment
  IRVC17986  Amblyopappus pusillus A. B. McGee 1980-9-9 Orange San Diego Creek Channel, adjacent to San Joaquin Freshwater Marsh. Irvine Comment
  RSA93934  Ambrosia acanthicarpa F. W. Peirson 1919-11-8 5275 Orange Road south of Arch Beach. Comment
  RSA643441  Ambrosia chamissonis R. D. Goeden, D. W. Ricker 1970-4-29 s.n. Orange Pacific Coast: Newport Beach, NW edge of town between Seashore Dr., Neptune Ave. 56th and 58th Streets. 2 Comment
  SD143591  Ambrosia chamissonis R. D. Goeden, D. W. Ricker 1970-4-29 Orange Newport Beach, northwest edge of town between Seashore Dr., Neptune Ave., 56th and 58th streets 2 Comment
  UCR109972  Ambrosia chamissonis R. D. Goeden, Don W. Ricker 1970-2-19 s.n. Orange South Coast, Newport Beach, NW edge of town between Seashore Dr., Neptune Ave., 56th and 58th Streets 2 Comment
  RSA549992  Ambrosia confertiflora Scott D. White 1992-9-23 856 Orange Vicinity of Olinda, near city of Brea, immediately N of Carbon Cyn Rd & E of Placentia Ave.; ca. 1 mi. (airline) SSE of Tonner Cyn. 183 Comment
  JEPS41035  Ambrosia psilostachya J. Thomas Howell 1927-9-24 3121 Orange at, Santa Ana River bottom Rancho Santa Ana; Santa Ana River 152 Comment
  UCR222883  Ambrosia psilostachya T. B. Salvato 2010-10-27 5121 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
  UCR73108  Ambrosia psilostachya Scott D. White 1992-9-29 846 Orange Vicinity of City of Brea, immediately north of Carbon Canyon Road and east of Placentia Avenue, +- 1 mi (airline) SSE of Tonner Canyon 183 Comment
  POM47597  Ambrosia psilostachya I. M. Johnston s.n. Orange 3 mi. N of Balboa Comment
  IRVC440  Ambrosia psilostachya var. californica I. L. Wiggins 1965-11-6 20346 Orange Santa Ana Canyon, road side near well 14, Kraemer Oil Estates near end of [Esperanza Rd.]. Yorba Linda Comment
  SD53073  Amorpha californica Peter H. Raven 1962-5-18 17752 Orange Santa Ana Mountains, along Silverado Canyon Truck Trail 7.3 miles above Gate, on hillside 1280 Comment
  CAS-BOT-BC180618  Amorpha californica var. californica P. C. Everett 1935-6-19 7235 Orange 1/2 mi. below (W.) head of canyon, Trabuco Canyon, Santa Ana Mts. 1066 Comment
  RSA603352  Amorpha fruticosa Scott D. White, Brian Leatherman 1997-6-12 5329 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
  RSA620  Amsinckia intermedia J. T. Howell 1928-2-25 833 Orange Near Bee Canyon, Rancho Santa Ana. 152 Comment
  RSA722351  Amsinckia intermedia Minor Warne 1934-03 s.n. Orange Laguna Canyon Comment
  UCR223429  Amsinckia intermedia Dick Newell, Don Millar 2011-2-15 061 Orange South Coast, San Joaquin Hills, Laguna Wilderness Park, along Stagecoach Trail 131 Comment
  UCR230842  Amsinckia intermedia Dick Newell, Don Millar 2011-3-24 093 Orange South Coast, Huntington Beach, just south of Weider Park, 1.2 mile NE of Seapoint and Pacific Coast Hwy, slope overlooking Bolsa Chica 6 Comment
  RSA0089444  Amsinckia intermedia P. A. Munz 1934-3-26 13132 Orange Newport Beach. 15 Comment
  RSA0089445  Amsinckia intermedia C. B. Wolf 1931-3-6 1864 Orange East side of Orange Co. Park. 152 Comment
  RSA0089447  Amsinckia intermedia Ken Greby 1985-4-18 17 Orange Alongside Laguna Canyon Rd. approx. 1.5 km. NE from El Toro Rd. 46 Comment
  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
  SD181373  Anagallis arvensis Valeria Soza, K. Clark,L. Gross,W. Miller,F. Roberts,G. Wallace 2001-4-4 1123 Orange Anaheim Bay; Seal Beach U.S. Naval Weapons Station, southwestern edge of Seal Beach National Wildlife Refuge 3 Comment
  UCR102025  Anagallis arvensis B. G. Pitzer 1997-3-25 3016 Orange San Joaquin Hills, Crystal Cove State Park, Pelican Point Area, grassland between Pacific Coast Hwy and the bike trail 30 Comment
  UCR191435  Anagallis arvensis A. C. Sanders, Fred M. Roberts 2008-4-8 34729 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, head of Hicks Canyon, S of Santiago Reservoir 351 Comment
  POM201808  Anagallis arvensis L. M. Booth 1932-5-12 s.n. Orange Newport Bay. Comment
  RSA465135  Anagallis arvensis M. B. Dunkle 1933-4-9 3273 Orange Dana Point. Comment
  RSA593764  Ancistrocarphus filagineus Steve Boyd 1996-4-14 8547 Orange Santa Ana Mountains, along Main Divide Road, ca 2.4 road miles south of Sierra Peak in upper watershed of Fremont Canyon, just west of the divide with Mabey Canyon. 841 Comment
  POM1029  Andropogon glomeratus C. B. Bradshaw s.n. Orange San Joaquin Ranch near Laguna. Comment
  RSA0036018  Andropogon glomeratus Robert F. Thorne 1977-11-21 50807 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs Comment
  RSA5818  Anemopsis californica C. B. Wolf 1932-6-28 3803 Orange Edge of field and road (Bixby Ave.) 650 ft. east of SW corner of NW 1/4 of NW 1/4 of Sect. 33. Comment
  RSA698847  Anemopsis californica Frances Battey s.n. Orange Laguna Canon. Comment
  SBBG61500  Anemopsis californica M. N. Ackley -May-1926 987 Orange Sunset Beach 8 Comment
  UCR195009  Anemopsis californica A. C. Sanders, Fred M. Roberts 2008-8-7 35986 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
  RSA247341  Anemopsis californica G. D. Wallace 1966-4-16 472 Orange Ca. 10 mi. N of Camp Pendleton along Hwy 5. Comment
  RSA542508  Anemopsis californica Fred M. Roberts, K. Keane 1988-5-25 3986 Orange Ranch Mission Viejo: Lower Canada Chiquita, 2.5 kilometers SSE Medium Rancho Survey Mark [see UTM] 882 Comment
  RSA700182  Anemopsis californica R. H. McArthur 1934-3-3 s.n. Orange Wintersburg canal bank Comment
  RSA4797  Anthemis cotula James Snow 1932-1 s.n. Orange Bryant Ranch, near Long Beach. South East 1/4 Section 25, Township 4S, Range 12 W, Station #1 plant #3. [ or T5S R12W sec.1 SW/4] Comment
  UCR232762  Antirrhinum multiflorum Robt. L. Allen, Trisha Smith, Mike Kahle 2006-6-21 s.n. Orange Peninsular Range; Santa Ana Mtns., Fremont Canyon, ridge to the east, saddle between Fremont and Black Star Canyon watersheds, north end of unpaved Lakeview Road, base of Southern California Edison tower #33-1 M33T1A 761 Comment
  UCR191244  Antirrhinum nuttallianum A. C. Sanders 2008-4-29 35135 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, western end of Loma Ridge on road to sheriff's training facility, c. 1.5 mi. SW of Santiago Reservoir 335 Comment
  UCR91395  Antirrhinum nuttallianum Scott D. White 1995-3-9 2541 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, Lower San Juan Picnic Area, just north of Hwy 74 396 Comment
  POM201705  Antirrhinum nuttallianum subsp. nuttallianum L. M. Booth 1932-12-6 1260 Orange Road side near Newport Beach Comment
  RSA552930  Antirrhinum nuttallianum subsp. nuttallianum Fred M. Roberts, R. E. Riefner 1989-5-2 4331 Orange Aliso-Wood Canyons Regional Park: Lower Wood Canyon, 3.5 kilometers SSE Multon Peak. 43 Comment
  UCR162200  Antirrhinum nuttallianum subsp. subsessile Robert DeRuff 1983-1 275 Orange Southern Coast, Newport Beach, Upper Newport Back Bay, Castaway's Bluffs 24 Comment
  RSA704933  Aphanes occidentalis Fred M. Roberts, David E. Bramlet 2004-4-21 6038 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, Shady Canyon, tributary to Cristianitos Cyn., 1.18 km NW Sycamore Gate, 1.08 km W of Cristianitos Road. 162 Comment
  POM183948  Aphanisma blitoides P. A. Munz 1932-3-29 12192 Orange Costa Mesa. Comment
Read comments
Dec 4 2014
  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
  POM201615  Apiastrum angustifolium L. M. Booth 1932-5-12 1027 Orange Newport Bay. Comment
  RSA731994  Apiastrum angustifolium A. C. Sanders, L. Farley, F. M. Roberts, D. E. Bramlet 2008-4-1 34656 Orange Peninsular Range: Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 250 Comment
  RSA5951  Apium graveolens C. B. Wolf 1932-7-7 3842 Orange Bryant Ranch ; On Bixby Ave. 2/10 mi. W of Hansen Road. (2/10 mi. W of SE corner of NE 1/4 of NE 1/4 of sec. 34 T4S R11W) 9 Comment
Read comments
Apr 9 2014
  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
  IRVC19395  Araujia sericifera R. L. Allen 1983-2-12 A627 Orange Fullerton; Hillcrest Park, slope bordering E Valley View Drive. Southern Coastal 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-BC23107  Arctostaphylos glandulosa subsp. glandulosa Robert F. Thorne; J. Olmsted 1963-7-26 32827 Orange Santa Ana Mts., Cleveland National Forest, Trabugo District. 1188 Comment
  CAS-BOT-BC23109  Arctostaphylos glandulosa subsp. glandulosa Helen D. Leis 1904-5-1 723 Orange Blue Light Trail, Silverado Canyon, Santa Ana Mts. 670 Comment
  CAS-BOT-BC23112  Arctostaphylos glandulosa subsp. glandulosa P. A. Munz; E. K. Balls 1952-8-19 17924 Orange Summit of Ortega hwy, Santa Ana Mts. 822 Comment
  CAS-BOT-BC402202  Arctostaphylos glandulosa subsp. glandulosa R. F. Thorne; C. W. Tilforth; E. W. Lathrop 1977-4-27 49708 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  IRVC1254  Arctostaphylos glandulosa subsp. glandulosa A. S. Boughey 1965-3-16 69 Orange Silverado Canyon. Santa Ana Mountains Comment
  RSA629321  Arctostaphylos glandulosa subsp. glandulosa Jon E. Keeley 1992-6-12 15503 Orange Road to Blue Jay Campground, 1 km south of Hotshot Camp, north of Ortega Hwy. (Hwy. 74). 800 Comment
  RSA629340  Arctostaphylos glandulosa subsp. glandulosa C. J. Fotheringham, Jon E. Keeley 1996-6-24 27640 Orange Ca. 3 km west of Sierra Peak. 700 Comment
  RSA629343  Arctostaphylos glandulosa subsp. glandulosa C. J. Fotheringham, Jon E. Keeley 1996-6-24 27641 Orange Ca. 3 km west of Sierra Peak. 700 Comment
  POM18080  Arctostaphylos glandulosa subsp. zacaensis P. A. Munz 1973-9-7 7741 Orange Santiago Peak. 1220 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
  SD53699  Arctotis stoechadifolia E. Norland 1963-5-24 Orange Cypress, Bishop St. Comment
  SEINET4002143  Argemone munita var. robusta G. B. Ownbey, F. Ownbey 1954-1 2168 Orange Between Modjesca Peak and Santiago Peak. 1524 Comment
  UCR209342  Aristida purpurea var. purpurea Fred M. Roberts 2008-4-22 6923 Orange Lomas de Santiago, Loma Ridge, Lower Hicks Canyon, along Haul Road near asphalt plant, 2.2 km east-northeast of Rattlesnake Reservoir Dam and 2.2 km west-northwest of Bee Peak, Irvine Ranch Conservancy 188 Comment
  RSA539377  Arrhenatherum elatius Fred M. Roberts 1988-6-10 4098 Orange Modejeska Peak, 0.8 km SW summit along crest, UTM 3730400mN, 449100mE, alt. 1548 m. 1548 Comment
  IRVC28770  Artemisia californica Elizabeth H. Hook, Caroline Tran 2006-2-4 1 Orange San Joaquin Marsh; NW bluff edge Southern Coastal 5 Comment
  RSA0044743  Artemisia californica Fred M. Roberts, Arthur Davenport 2003-9-11 6018 Orange Rancho Mission Viego: Donna O'Neill Land Conservancy, Cristianitos Cyn., 85m SSW Sycamore Gate, 35m W of Cristianitos Road. 119 Comment
  UCR131888  Artemisia californica J. Mallory, V. McCoy 1995-6-30 6454- 63 Orange Santa Ana Mountains: S-facing slope on Windy Ridge, c. 2.5 mi. south of 91 fwy. Comment
  UCR186679  Artemisia californica T. B. Salvato, Katie Kurtz 2006-10-15 1912 Orange South Coast, Irvine, San Diego Creek flood control channel, near Michelson Drive and Harvard Avenue 6 Comment
  UCSB16965  Artemisia californica Gerhart, Janet 1963-2-22 Orange 1.5 miles above locked gate on dirt road, Trabuco Canyon, 17.4 miles east of U.S. Highway 101 at El Toro Marine Base, 2.5 miles by air southeast of Santiago Peak 457 Comment
  UCSB69265  Artemisia californica Riefner, R. 2006-8-25 Orange City of Dana Point, Salt Creek Beach Park, vicinity of Dana Strand Rd. and Selva Rd.; USGS Quad: Dana Point; UTM: 11s (NAD 83) 0433601E 3702917N 1 Comment
  UCR231349  Artemisia douglasiana A. C. Sanders, Kent Beaman 2011-9-27 39900 Orange Peninsular Range; Santa Ana Mtns., Maple Springs Truck Trail above Silverado, at major (dry) stream crossing, 3.95 km NNW (347 deg. ) of Santiago Peak 903 Comment
  CAS-BOT-BC90564  Artemisia dracunculus John Thomas Howell 1927-9-24 3110 Orange on n. side of Santa Ana [Canon] Canyon 213 Comment
  UC489198  Artemisia dracunculus C. V. Meyer 1928-7-30 597 Orange Saunder's Meadow San Jacinto Mts., Saunder's Meadow 1676 Comment
Read comments
Nov 12 2014
  UC1119516  Artemisia tridentata subsp. tridentata H. E. Norton 1931-3-28 51 Orange Corona Quadrangle Comment
Read comments
Aug 13 2014
  POM704  Arthrocnemum subterminale I. M. Johnston 1918-9-3 2152 Orange Laguna Beach. 6 Comment
  SEINET955311  Asclepias eriocarpa Carl B. Wolf 1936-1 7947 Orange Santa Ana Mountains, along Ortega Highway, 5 6/10 miles above San Juan Capistrano. 76 Comment
  UCR193029  Asclepias eriocarpa A. C. Sanders, Fred M. Roberts 2008-6-17 35519 Orange Peninsular Range; Santa Ana Mtns., middle section of Weir Canyon, SSE of Walnut Canyon Reservoir 225 Comment
  SEINET7113596  Asclepias fruticosa M. B. Sady 1996-6-19 s.n. Orange The University of California, Irvine Arboretum, on Campus Drive, UCI Comment
  UCR130348  Asclepias physocarpa A. C. Sanders, Mark A. Elvin 2003-10-12 27328 Orange Southern Coastal Slope, Irvine, UCI Arboretum, UCI campus near intersection of Jamboree Blvd. and Campus Dr. 15 Comment
  CDA37131  Asphodelus fistulosus Allen Lampman 2012-4-18 PDR# 1630651 Orange Laguna Niguel. 0 Comment
  IRVC19485  Aspidotis californica Karlin G. Marsh, G. A. Marsh 1982-10-23 Orange Canyon Acres Canyon; shaded, rocky slopes at base of cliffs north of creek. Laguna Beach Comment
  POM8680  Aspidotis californica P. A. Munz, R. D. Harwood 1920-4-24 3743 Orange Santa Ana Mountains, Sierra [Freemont] Canyon 366 Comment
  POM9822  Aspidotis californica P. A. Munz, R. D. Harwood 1920-4-24 3743 Orange Santa Ana Mountains, Sierra [Freemont] Canyon 366 Comment
  CAS-BOT-BC180489  Astragalus brauntonii Richard Snow 1957-7-25 59 -2 Orange North slopes of Sierra Peak, Claymine Canyon Truck trail to the peak, Santa Ana Mts. 457 Comment
  RSA699637  Astragalus didymocarpus Keith E. Hoffmaster 1935-4-19 s.n. Orange Santa Ana Mts. (Trabuco Rd.) Comment
  CAS-BOT-BC177875  Astragalus didymocarpus var. didymocarpus Helen D. Geis 1902-4-1 s.n. Orange Dry bed of Santiago Creek in [canon] canyon Comment
  UCR199730  Astragalus didymocarpus var. didymocarpus Scott D. White, Justin Wood 2008-4-21 11904 Orange Chino Hills, Chino Hills State Park, N of 91 freeway, above Yorba Linda 488 Comment
  RSA549994  Astragalus trichopodus Scott D. White 1992-9-23 859 Orange Vicinity of Olinda, near city of Brea, immediately N of Carbon Cyn Rd & E of Placentia Ave.; ca. 1 mi. (airline) SSE of Tonner Cyn. 183 Comment
  UCR234139  Astragalus trichopodus Dick Newell, Don Millar, Judy Booth 2012-4-25 246 Orange South Coastal Plain, Muth Interpretive Center, upper Newport Bay, Newport Beach 9 Comment
  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
  POM17799  Astragalus trichopodus var. lonchus P. A. Munz 1923-9-7 7770 Orange Mouth of Trabuco Canyon 305 Comment
  RSA2069  Astragalus trichopodus var. lonchus C. B. Wolf 1931-3-6 s.n. Orange Trabuco Canyon, 1.5 mile below Trabuco Camp Grounds 549 Comment
  RSA264438  Astragalus trichopodus var. lonchus C. W. Tilforth 1976-11-12 1239 Orange Slopes of Rancho Santa Ana above Horseshoe Bend of the Santa Ana River, SE of Yorba Linda. 152 Comment
  UCD105450  Astragalus trichopodus var. lonchus J. E. Eckert 1945-6-28 s.n. Orange location unknown. Comment
  UC1980276  Atriplex R. E. Riefner Jr. 2006-2-12 06 -24 Orange North end of City of San Clemente, along I-5 Freeway North, immediately south of Camino de Estrella exit ramp. Comment
  UCR281087  Atriplex R. E. Riefner Jr. 2006-8-8 06- 383 Orange City of Irvine, MacArthur Blvd. c. 0.2 mile south of Jamboree Rd. near Bonita Creek 12 Comment
  UCR281836  Atriplex R. E. Riefner Jr. 2006-10-21 06- 662 Orange South Coast, city of Irvine, MacArthur Blvd, c. 0.2 mile south of Jamboree Road, extendingto along Bonita Creek 12 Comment
  SBBG132290  Atriplex amnicola R. E. Riefner Jr. 2005-9-16 05 -666 Orange upper Newport Bay, E of Bayside Dr at confluence with Big Cyn 6 Comment
  SBBG133594  Atriplex amnicola R. E. Riefner Jr. 2006-5-7 06 -178 Orange N end of City of San Clemente, along I-5 Freeway, N side, immediately S of Camino de Estrella exit ramp 66 Comment
  SBBG121999  Atriplex amnicola R. E. Riefner 2005-9-16 05 -666 Orange E of Bayside Drive at confluence with Big Cyn, upper Newport Bay 6 Comment
Read comments
Dec 13 2012
  POM201897  Atriplex californica L. M. Booth 1932-5-19 1061 Orange Newport Beach Comment
  POM254668  Atriplex californica F. W. Peirson 1924-2-10 4534 Orange Corona Del Mar Comment
  POM633  Atriplex californica D. L. Crawford 1926-07 s.n. Orange Laguna Beach region Comment
  RSA452403  Atriplex californica Albert J. Perkins 1923-05 s.n. Orange Laguna heights Comment
  RSA452452  Atriplex canescens Albert J. Perkins 1909-7-4 s.n. Orange Laguna Beach. Comment
  RSA452454  Atriplex canescens E. A. Purer 1932-8-31 s.n. Orange Near Route 101 Comment
  RSA624453  Atriplex canescens L. C. Wheeler 1933-10-21 2221 Orange Newport Bay. 3 Comment
  POM201920  Atriplex coulteri L. M. Booth 1932-5-18 s.n. Orange Newport Bay. Comment
Read comments
Feb 3 2015
  RSA0040090  Atriplex coulteri Sandra Leatherman 2014-3-18 2014 -3 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
  CDA23267  Atriplex glauca R. E. Riefner Jr. 2005-12-13 05 -784 Orange Lake Forest; E side of SR-241, ca. 0.5 mi. N of Alton Pkwy. Comment
  SD243320  Atriplex glauca R. E Riefner 2006-3-19 06 52 Orange City of Newport Beach, near Avocado Ave. and San Nicolas Drive, W of MacArthur Blvd. 77 Comment
  UCR127689  Atriplex glauca D. E. Bramlet 1994-2-27 2365 Orange South Coast, Roadside, some 120 m east of intersection of Irvine Ave. and University Drive, c. 1 m south of University Drive Comment
  SBBG121998  Atriplex glauca R. E. Riefner 2005-12-13 05 -784 Orange ca. 0.5 mi N of Alton Parkway, E side of SR-241; Lake Forest 230 Comment
Read comments
Dec 13 2012
  CAS-BOT-BC170116  Atriplex lentiformis Carl B. Wolf 1927-7-23 666 Orange Just no. of San Clemente on coastal slopes. Comment
  POM201918  Atriplex leucophylla L. M. Booth 1932-8-5 s.n. Orange West Newport Beach Comment
  RSA312125  Atriplex leucophylla N. C. Cooper 1942-11-9 884 Orange Balboa Comment
  RSA478323  Atriplex leucophylla Gertrude Dunn 1931-8-9 s.n. Orange Between Huntington Beach and Santa Ana Comment
  RSA593870  Atriplex lindleyi R. E. Riefner 1994-6-18 94 -427 Orange San Clemente State Beach Comment
  RSA696212  Atriplex rosea Keith E. Hoffmaster 1934-5-31 s.n. Orange Santa Ana. Comment
  HSC84220  Atriplex semibaccata B. Pitzer, L. F. LaPre 1986-10-20 309 Orange Siphon Reservoir, ca. 5 mi. NE of Irvine, and ca. 1 mi. NE of intersection of Irvine Blvd. and Sand Canyon Ave. 122 Comment
  SEINET155912  Atriplex semibaccata Norman C. Cooper 1942-11-9 889 Orange Balboa. Comment
  UCR222630  Atriplex semibaccata T. B. Salvato 2010-10-27 5105 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
  POM319268  Atriplex semibaccata Patricia Wilder 1970-6-27 5387 Orange Along strand of Capistrano Beach. 3 Comment
  RSA5242  Atriplex semibaccata C. B. Wolf 1932-9-13 4030 Orange Bryant Ranch: Triangle of waste ground S of Bryant Ave., & 1/2 mi. west of Los Alamitos Blvd., (Triangle waste ground at NW corner of SW 1/4 sect. 30 T4S R11W) 8 Comment
  SBBG119391  Atriplex suberecta T. Perring with T. Pinckard 1994-3-2 Orange Marine Helicopter Station at the corner of Moffett Dr and Jamboree Rd, Tustin 11 Comment
  SD220052  Atriplex suberecta Mark A. Elvin 2004-5-2 3424 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7 km (air) NNW UC Irvine campus center. 3 Comment
  CDA22915  Atriplex triangularis Mary H. White 2006-9-23 923063 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
  UCR67013  Atriplex triangularis A. C. Sanders 1990-10-6 10189 Orange Newport Bay, North Star County Beach Area on the SW end of the Bay, c. 2 km inland of Hwy 1. 3 Comment
  CHSC104028  Atriplex watsonii Valerie Soza; K. Clark, L. Gross, W. Miller, F. Roberts, G. Wallace 2001-4-4 1100 Orange Seal Beach National Wildlife Refuge: Seal Beach U.S. Naval Weapons Station, across access road from Nature Center (Bldg 226). 3 Comment
  RSA453974  Atriplex watsonii Anstruther Davidson 1902-09 1767 Orange Newport Beach. Comment
  RSA697700  Avena barbata Anonymous s.n. Orange Orange County park Comment
  RSA734680  Avena fatua A. C. Sanders, T. B. Salvato 2008-5-13 35336 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
  RSA0046823  Avena fatua Jason Berkley 1994-5-3 14 Orange Yorba Linda, grassy field off Bastuchury Rd. 50 yds from Casa Loma Ave. Comment
  RSA696691  Avena sativa Keith E. Hoffmaster 1927-5-5 s.n. Orange Santa Ana. Comment
  IRVC23261  Azolla filiculoides Fred M. Roberts 1985-7-17 2029 Orange San Juan Capistrano: San Juan Creek at 405 Fwy bridge Southern Coastal 21 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
  IRVC6594  Baccharis douglasii Charles W. Sexton 1972-6-17 Orange Bolsa Chica salt marsh southern coastal 0 Comment
  POM201738  Baccharis douglasii L. M. Booth 1932-6-28 1222 Orange Bolsas Marsh. Comment
  RSA542423  Baccharis emoryi Robb Hamilton 1989-7-31 2 Orange Newport Beach: just W of Newprot Blvd, along Pacific Coast Hwy 5m 5 Comment
  SD135168  Baccharis glutinosa Brian Fink 1992-10-7 Orange Huntington Beach Comment
  CAS-BOT-BC99442  Baccharis pilularis B. D. Stark 1933-1-21 4523 Orange San Clemente 91 Comment
  RSA12829  Baccharis pilularis C. B. Wolf 1934-12-26 6262 Orange Hills and ravines near ocean, S end of town of San Clemente 15 Comment
  RSA613761  Baccharis pilularis B. Pitzer, T. Tennant 1997-11-8 3374 Orange Crystal Cove State Park, Pelican Point Area, grassland area between Pacific Coast Hwy and the bike trail. 30 Comment
  RSA719421  Baccharis pilularis Fred M. Roberts, Lee Ann Caranza 2006-10-25 6456 Orange Dana Point Headlands south of Margarite Drive, 0.6km W Marine Institute and 1km SW Cook Sch. 58 Comment
  RSA743499  Baccharis pilularis Fred M. Roberts 2008-9-10 7098 Orange Dana Point: Dana Point Headlands, CNLM Preserve, north of Marguerita Drive, 0.5 km WNW Marine Institute, Dana Point Harbor. 75 Comment
  SD253901  Baccharis pilularis Jim Riley 2013-12-10 134 Orange San Clemente area; 0.29 miles E intersection Avenida Pico and Camino La Pedriza; just N San Diego County line 74 Comment
  UCR103721  Baccharis pilularis B. G. Pitzer, T. Tennant 1997-11-8 3374 Orange San Joaquin Hills, Crystal Cove State Park, Pelican Point Area, grassland area between Pacific Coast Hwy and the bike trail. 30 Comment
  UCR150571  Baccharis pilularis Scott D. White, Matt Carlton 2003-11-20 9860 Orange South Coastal Plain, Santa Ana Mtn foothills. San Juan Creek in San Juan Capistrano 24 Comment
  CDA10394  Baccharis salicifolia D. G. Kelch 2006-12-9 6 .557 Orange Irvine. University Dr along tidal creek just E of I-73. Comment
  HSC5108  Baccharis salicifolia T. L. Ackerman 1964-3-28 15 Orange On Irvine Park Dr. inside Irvine Park 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
  RSA731951  Baccharis salicifolia Fred M. Roberts 2007-12-12 6707 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
  SD220034  Baccharis salicifolia Mark A. Elvin 2004-5-2 3414 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7 (air) NNW UC Irvine campus center. 3 Comment
  UCR215309  Baccharis salicifolia Fred M. Roberts, Eliza L. Maher 2008-3-26 6799 Orange South Coast, Dana Point; Dana Point Headlands, Center for Natural Lands Mgmt. Preserve near Strands Road gate, 0.8 km west of Marine Institute, Dana Point Harbor 71 Comment
  UCR247875  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
  JEPS21857  Baccharis salicifolia subsp. salicifolia Annette Waters 1958-3-30 161 Orange 3.2 mi ne of, on State Highway 91, 18 Atwood Placentara turnoff Comment
  UC1292590  Baccharis salicifolia subsp. salicifolia C. L. Hitchcock and C. V. Muhlick 1964-3-17 23068 Orange 8 mi e of Yorba Linda (Santa Ana Canyon); Santa Ana Canyon Comment
  CAS-BOT-BC106666  Baccharis salicina Ira L. Wiggins 1965-11-6 20338 Orange Kraemer Oil Estates, near well No. 14, near end of county road constituted by continuation of Orangethorpe Avenue Comment
  UC536888  Baccharis salicina L. M. Booth Orange Newport Beach Comment
  UCR207594  Baccharis salicina O. F. Clarke, Roger E. Reinke 2004-11-14 s.n. Orange South Coast, Newport Back Bay 3 Comment
  UCR240108  Baccharis sarothroides Dick Newell, Don Millar, Riley Pratt, Larry Robbins 2012-9-18 286 Orange Peninsular Range; Santa Ana Mtns., mouth of Black Star Canyon, on Red Rock Ridge Road, 0.25 mi southwest of Baker Canyon Road 288 Comment
  UCR151116  Baccharis sergiloides Scott D. White 1998-10-15 7187 Orange Santa Ana Mtns foothills, Yorba Linda, c. 0.5 mi south of Telegraph Canyon between Ohio St. and Fairmont 305 Comment
  SBBG47294  Bassia hyssopifolia R. N. Philbrick 1973-8-31 Orange marsh just E of University of California, Irvine Comment
  SBBG47296  Bassia hyssopifolia R. N. Philbrick 1973-8-31 Orange marsh just E of University of California, Irvine Comment
  LA210082  Bassia hyssopifolia Jonathan Sauer; T. McKnight 1971-8-14 4980 Orange West Cove Comment
  CAS-BOT-BC75516  Batis maritima Peter H. Raven 1958-7-5 13559 Orange Just north of Surfside. Comment
  CHSC26476  Batis maritima James Henrickson 1970-7-25 5034 b Orange 3 1/2 miles NW of Huntington Beach on sandy margin of Bolsa Bay, 1/4 mile SE of Warner Ave. along Pacific Coast Hwy. 0 Comment
  LA105119  Batis maritima Barry A. Prigge; 1988-6-30 8118 Orange eastern edge of Newport Beach, NE of Pacific Coast Hwy bridge over Santa Ana River/Greenville-Banning channels 0 Comment
  RSA12655  Batis maritima C. B. Wolf 1934-7-29 s.n. Orange Newport Bay. Comment
  UCR14055  Batis maritima Hyrum B. Johnson 1973-10-27 s.n. Orange Pacific Coast, Bolsa Chica State Beach 1 Comment
  UCR224044  Batis maritima Justin M. Wood 2009-12-1 1388 Orange South Coast, Santa Ana River, marsh just upstream of Pacific Coast Highway 2 Comment
  UCR67007  Batis maritima A. C. Sanders 1990-10-6 10195 Orange Newport Bay, North Star County Beach Area on the SW end of the Bay, c. 2 km inland of Hwy 1. 3 Comment
  POM17841  Bebbia juncea Philip A. Munz 1923-9-7 7771 Orange Mouth of Trabuco Canyon 305 Comment
  POM50755  Bebbia juncea Helen D. Geis 1902-1 550 Orange Santiago Creek Canyon Comment
  SEINET10448122  Begonia cucullata Melvin L. Conrad, David B. Dunn 1973-6-13 Conrad 7137 Orange In vicinity of Laguna Beach. 152 Comment
  CAS-BOT-BC127998  Bidens pilosa Ira L. Wiggins 1965-12-18 20426 Orange upper edge of Hillcrest Park, Fullert6on Comment
  RSA730988  Bidens pilosa var. pilosa Fred M. Roberts 2006-11-15 6462 Orange Santa Ana Cyn., 1.0 km ENE Imperial Hwy bridge, between La Palma Ave. and Santa Ana River near Big Springs St. 89 Comment
  RSA698736  Bloomeria crocea Minor Warne 1934-04 s.n. Orange Panerama Heights Comment
  UCR12191  Bloomeria crocea var. crocea Art Whistler 1966-4-27 s.n. Orange Between Laguna Beach and Anaheim, via Laguna Canyon Rd. and probably Route 1 Comment
  UCR86993  Bloomeria crocea var. crocea B. G. Pitzer, Stu Hemstreet 1992-5-27 1955 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
  RSA48920  Bloomeria crocea var. crocea Philip A. Munz 1949-5-26 13394 Orange Head of Sierra [Freemont] Canyon, Santa Ana Mountains 732 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
  UCSB57131  Bolboschoenus maritimus Marsh, G. 1975-7-28 Orange Huntington Beach: East Garden Grove-Wintersburg Flood Control Channel (No. C05); stream bank just N of Warner St. bridge crossing Comment
  RSA37  Bothriochloa barbinodis J. T. Howell 1927-6-5 38 Orange Rancho Santa Ana, near east boundary. 152 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
  RSA520  Bowlesia incana J. T. Howell 1928-2-26 853 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  SEINET3156098  Bowlesia septentrionalis E. K. Balls 1950-3-7 14446 Orange Administration Grounds of Rancho Santa Ana Botanic Garden Comment
  IRVC28773  Brassica geniculata Duy D. Nguyen 2006-2-4 1 Orange San Joaquin Marsh; NW Edge of Marsh. Southern Coastal 5 Comment
  UCR239637  Brassica geniculata Fred M. Roberts 2012-4-24 7505 Orange San Joaquin Hills, Buck Gully, west of intersection of Ridge Park Road and Newport Coast Drive, 1.5 km west of Signal Peak 179 Comment
  JEPS53243  Brassica nigra Lawrence M. Booth 1932-5-12 1039 Orange Newport Bay Comment
  UCR131877  Brassica nigra J. Mallory, V. McCoy 1995-7-3 6454- 105 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
  UCR231158  Brassica nigra Dick Newell, Don Millar, Shara Harris 2011-6-21 189 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Agua Chinon Wash 225 Comment
  CAS-BOT-BC36770  Brassica rapa Ira L. Wiggins 1966-3-5 20512 Orange About 0.5 mile west of El Toro Post Office, along Highway S-18. Comment
  UCSB18585  Brassica rapa Reed, Robert 1964-3-26 Orange 150 feet N of corner of Orangewood and Euclid Ave., Anaheim 60 Comment
  RSA584704  Brickellia nevinii Fred M. Roberts, Carol A. Roberts 1989-5-11 4352 Orange Gypsum Canyon, 2.9 km WSW Sierra Peak, about 3.3km S by road of Santiago Canyon Road. 189 Comment
  SEINET199452  Brodiaea capitata J. R. Glen 1957-5-3 Orange .5 miles from the San Bernardino County line. 3 miles east of Olinda along Carbon Canyon road. 201 Comment
  RSA587119  Brodiaea jolonensis R. E. Riefner 1994-6-15 94 -253 Orange South bluffs, San Clemente State Beach. Comment
  JEPS7700  Brodiaea terrestris subsp. kernensis Alice King Jun 1908 Orange Santa Ana Mts. Comment
  POM156460  Bromus carinatus Le Roy Abrams 1903-4-18 3271 Orange Capistrano Comment
  RSA5928  Bromus carinatus C. B. Wolf 1932-7-2 3824 Orange Carbon Canyon, 1/8 mile below La Vida Springs 213 Comment
  CAS-BOT-BC156206  Bromus catharticus Ira L. Wiggins 1965-9-26 20264 Orange Along Orangethorpe Avenue near Atwood. Comment
  POM1272  Bromus catharticus C. B. Bradshaw s.n. Orange Orange. Comment
  RSA184072  Bromus catharticus I. L. Wiggins 1965-11-5 20326 Orange In orange grove on N side of Chapman Avenue, near Kraemer Road. Comment
  SEINET14401104  Bromus catharticus Czarnecki 1966-5-20 108 Orange Near State College Blvd and Yorba Linda Blvd, Fullerton Comment
  LA35610  Bromus diandrus A. K. Khudairi; 1951-5-20 sn Orange Westminster Comment
  RSA184128  Bromus diandrus I. L. Wiggins 1965-9-29 20267 Orange California State College at Fullerton, near entrance to campus. Comment
  SD95150  Bromus grandis Jack l. Reveal 1975-7-18 1765 Orange Occasional on dry sites among boulders, riparian zone, Trabuco Canyon 550 Comment
  RSA542368  Bromus hordeaceus Fred M. Roberts 1988-4-10 3915 Orange Lomas De Santiago: Loma Ridge, 1.0 kilometer N Bolero Lookout., UTM 37 31 1000m N, 4 39 600m E. 415 Comment
  UCR192104  Bromus madritensis A. C. Sanders, Fred M. Roberts, Amber O'Neal, D. E. Bramlet 2008-5-9 35306 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along old dirt road, c. 1.25 mi. ESE of Walnut Cyn Reservoir 340 Comment
  HSC94253  Bromus madritensis subsp. rubens D. Atwood 1993-3-27 17691 Orange Corona Del Mar State Park along Newport Coast Drive. 0 Comment
  SEINET14451699  Bromus rigidus Czarnecki 1966-3-4 26 Orange California State College, Fullerton. N side of parking lot C. Comment
  CAS-BOT-BC161819  Bromus rubens Ira L. Wiggins 1966-2-18 20449 Orange Near end of County road, 0.5 mile west of entrance to Rancho Santa Ana. Comment
  CAS-BOT-BC161824  Bromus rubens C. L. Hitchcock; C. V. Muhlick 1964-3-17 23060 Orange 8 miles east of Yorba Linda, Santa Ana Canyon. Comment
  RSA731996  Bromus rubens A. C. Sanders, Fred M. Roberts 2008-4-8 34783 Orange Peninsular Range: Lomas de Santiago, SSE os f Santiago Reservoir on Harding Truck Trail at Dripping Springs Loop, above Limestone Canyon. 475 Comment
  UCR140797  Bromus rubens Robin G. Marushia 2004-5-4 015 Orange Southern Coast, Crystal Cove State Park, interior of El Moro Canyon, east side of canyon, utility pole turnout above riparian area crossing 183 Comment
  UCR217282  Bromus rubens Mark A. Elvin 2003-3-30 2392 Orange South Coast, north side of UC Irvine Preserve, between core of UCI campus (E Peltason Dr.) and Hwy 73 69 Comment
  RSA42  Bromus rubens J. T. Howell 1928-2-26 857 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  CLARK-A1528-915  Cakile maritima Patricia A. Andrews 1975-6-26 5905 Orange Capistrano Bay Beach 9 Comment
  RSA678743  Cakile maritima Valerie Soza, Kenneth Clark, LeRoy Gross, Will Miller, Fred M. Roberts, Gary D. Wallace 2001-4-4 1113 Orange Anaheim Bay: Seal Beach U. S. Naval Weapons Station, southwestern edge of Seal Beach National Wildlife Refuge. 3 Comment
  UCR42432  Cakile maritima A. C. Sanders 1986-5-31 6525 Orange Southern Coast, Balboa Island at Newport Beach. Dunes at the back edge of the beach, from 6th St. S to the harbor entrance 1 Comment
  CSUSB527  Cakile maritima Cesareo Perez 1971-5-12 S. N. Orange Huntington State Beach, Pacific Coast Highway at Brookhurst 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
  RSA723963  Callistemon viminalis R. E. Riefner Jr. 2006-11-12 06 -669 Orange City of Newport Beach, urban creek draining into San Diego Creek at confluence with Newport Bay; San Diego Creek at SR-73 overpass. 6 Comment
  RSA703700  Calochortus albus Fred M. Roberts 2003-4-20 5657 Orange Santa Ana Mtns.: San Juan Canyon, SR 74, south side of road, 3.54 km by road E San Juan Guard Station; 3.08km WNW Sitton Peak. 361 Comment
  RSA750699  Calochortus catalinae D. E. Bramlet 2008-3-26 4124 Orange Bee Cyn. Bowerman landfill site. 148 m S of the Bee Cyn Access Road, 296 m W of the landfill entrance. Comment
  CAS-BOT-BC483376  Calochortus invenustus L. R. Abrams 1901-6-15 1848 Orange Mt. Santiago Comment
  RSA561495  Calochortus plummerae Steve Boyd, Kyle Boyd 1992-7-9 7655 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
  RSA629047  Calochortus splendens Valerie L. Soza, LeRoy Gross 1999-6-10 525 Orange Santa Ana Mountains: Southwestern extension of Modjeska Peak, off dirt road to summit, off Main Divide Road 1555 Comment
  CAS-BOT-BC492703  Calochortus splendens Le Roy Abrams 1901-6-15 1798 Orange Trabuco Canon Comment
  RSA49099  Calochortus splendens Philip A. Munz 1949-5-26 13371 Orange Head of Sierra [Freemont] Canyon, Santa Ana Mountains 762 Comment
  RSA627529  Calochortus splendens Sandy Leatherman, Fred M. Roberts, Brian Leatherman, Trish Smith 1998-5-23 20 Orange Black Star Canyon: Spur Road off of Black Star Canyon Road. 335 Comment
  UCSB47576  Calochortus splendens Roberts, Fred 1980-4-3 Orange Hills, 1.0km NE Dana Hills High School, Dana Point 75 Comment
  RSA581433  Calochortus weedii var. intermedius Fred M. Roberts 1989-6-7 4376 Orange Santa Ana Mountains: Upper Gypsum Canyon along divide between Gypsum and Blind Canyon, 6.3 kilometers WSW Sierra Peak. 411 Comment
  RSA588981  Calochortus weedii var. intermedius D. E. Bramlet 1994-6-2 2381 Orange San Joaquin Hills. Ridgeline above ''Act V'' Canyon, 910m west of Laguna Canyon Road (S. of Laguna Bend area) and 457 m south of the intersection w/ the access road to Boat Canyon., The site is found adjacent to the dirt access road on an east-facing slope in the upper portion of the canyon 240 Comment
  RSA773557  Calochortus weedii var. intermedius Fred M. Roberts 2008-6-3 7027 Orange Lomas de Santiago: Loma Ridge, East Fork Rattlesnake Canyon, ca. 2.5 km NE of Rattlesnake Reservoir spillway and 2.6 km ENE Bee Peak 258 Comment
  SD134560  Calochortus weedii var. intermedius Craig Reiser 1992-6-12 Orange Laguna Niguel, west-facing slope 100 yards north of northeast corner of intersection of Crown Valley Parkway and Pacific Island Drive. Openings in chaparral. (IPB 3/08) Comment
  SEINET3885376  Calochortus weedii var. intermedius D. Bramlet 1994-6-2 2378 Orange San Joaquin Hills. On ridgeline north of Little Sycamore Canyon. The site is locate 244 m NE of Little Sycamore Canyon and 1.3 km west of Laguna Cyn. Road. Laguna Beach 7.5 USGS quadrangle 37 19 160m. N X 4 29 160m E.; 0 165 Comment
  UCR112937  Calochortus weedii var. intermedius R. E. Riefner Jr. 2000-6-26 20- 580 Orange Peninsular Range, Santa Ana Mountains: North Ranch Policy Plan Area, along dirt road running N and west of Black Star Cyn. Road at powerline tower 631 Comment
  RSA0000338  Calochortus weedii var. intermedius J. T. Howell 1927-6-22 193 Orange Botany Garden, Rancho Santa Ana. Comment
  CDA25245  Calycadenia tenella A. C. Sanders, Fred M. Roberts, A. O Neal 2008-5-9 35323 Orange Peninsular Range; Santa Ana Mountains; Weir Canyon, 0.3 mile west of Eastern Transportation Corridor (Highway 241) and 1.45 miles east of south end of Walnut Canyon Reservoir. Comment
  PASA2306  Calycadenia tenella Frank W. Peirson 1922-5-18 Orange Santa Ana River 121 Comment
  RSA602115  Calycadenia tenella Scott D. White 1997-5-6 5042 Orange Santa Ana Mountains. Santiago Canyon area: Ridgetop road N and W of Bolero Lookout. 427 Comment
  RSA795  Calycadenia tenella J. T. Howell 1927-7-28 511 Orange Nolina Canyon, Rancho Santa Ana 152 Comment
  RSA761935  Calycadenia tenella Robt Allen 2005-4-30 12496 Orange Caspers Wilderness Park, East Ridge Trail. 175 Comment
  UC7754  Calyptridium monandrum C. W. Hamlin 1896-1 8 Orange Buena Park Comment
  CAS-BOT-BC215766  Calystegia macrostegia subsp. arida Le Roy Abrams 1901-6-14 1800 Orange Trabuco Canyon Comment
  RSA562765  Calystegia macrostegia subsp. arida Steve Boyd 1992-5-19 7419 Orange Southern Santa Ana Mountains San Mateo Canyon Wilderness Area. Western edge of the wilderness along Lucas Canyon Trail from access road to Rancho Carrillo (7S06) N into Aliso Canyon. 366 Comment
  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
  IRVC987  Calystegia macrostegia subsp. cyclostegia M. Savage 1965-3-27 Orange Corona del Mar. Newport Beach Comment
  UC484242  Calystegia macrostegia subsp. intermedia C. B. Wolf 1931-3-6 1865 Orange on road to Anaheim 2 mi from Orange County Park; 2 mi from Orange County Park 152 Comment
  CHSC90567  Calystegia soldanella Sean P. Gallagher 1988-4-2 6 Orange Bolsa Chico State Beach ca. 1 mi s of Warner Ave. 0 Comment
  RSA542488  Camissonia bistorta Fred M. Roberts, G. A., K. G. Marsh 1988-4-26 3937 Orange San Joaquin Hills: Pelican Hill, 0.5km SE summit. 165 Comment
  UCR102028  Camissonia bistorta B. G. Pitzer 1997-3-25 3031 Orange San Joaquin Hills, Crystal Cove State Park, Pelican Point Area, on bluffs immediately above beach, along trail that winds around restoration area and down to beach. 30 Comment
  SEINET7073419  Camissonia campestris A. G. Vestal 1963-4-24 s.n. Orange La Paz Canyon, Rancho Mission Viejo. Coordinate datum: NAD27. Comment
  RSA585184  Camissonia cheiranthifolia subsp. cheiranthifolia D. Atwood 1993-3-27 17699 Orange Corona Del Mar State Park along Newport Coast Drive. 0 Comment
  IRVC29758  Camissonia cheiranthifolia subsp. suffruticosa Barry S. Nerhus, Mark A. Elvin 2006-11-4 11 Orange Huntington Beach, Bolsa Chica Wetlands, SW portion of Reserve beside Pacific Coast Highway. Southern Coastal 0 Comment
  POM180497  Camissonia cheiranthifolia subsp. suffruticosa L. R. Abrams 1917-6-23 6576 Orange Balboa Comment
  POM3332  Camissonia cheiranthifolia subsp. suffruticosa D. L. Crawford 1916-7-28 s.n. Orange Laguna Beach Region, Abalone Pt. Comment
  RSA454022  Camissonia cheiranthifolia subsp. suffruticosa M. B. Dunkle 1933-4-9 3292 Orange Huntington Beach. Comment
Read comments
Jan 2 2015
  RSA698256  Camissonia cheiranthifolia subsp. suffruticosa R. H. McArthur 1934-4-7 s.n. Orange Near outlet of Santa Ana River Comment
  UCR191424  Camissonia hirtella A. C. Sanders, Fred M. Roberts 2008-4-8 34775 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, SSE of Santiago Reservoir on Harding Truck Trail at Dripping Springs Loop, above Limestone Canyon 495 Comment
  RSA678740  Camissonia micrantha Valerie L. Soza, Kevin B. Clark, LeRoy Gross, Will Miller, Fred M. Roberts, Gary D. Wallace 2001-4-4 1125 Orange Seal Beach U. S. Naval Weapons Station, southwestern edge of Seal Beach National Wildlife Refuge. 3 Comment
  SBBG40397  Camissoniopsis bistorta J. Ingram 1960-3-14 244 Orange La Palma Ave, ca. 2 blocks E of Knotts Berry Farm, Buena Park Comment
  CAS-BOT-BC160451  Camissoniopsis cheiranthifolia subsp. suffruticosa William M. Klein 1960-6-14 1457 Orange San Clemente State Park 7 Comment
  JEPS31489  Camissoniopsis cheiranthifolia subsp. suffruticosa L. M. Booth 1932-8-5 1366 Orange Newport Bay Comment
  UC1719497  Camissoniopsis cheiranthifolia subsp. suffruticosa D. Atwood 1993-3-28 17712 Orange Bolsa Chica Ecological Reserve, California Dept. of Fish and Game 0 Comment
  UC523554  Camissoniopsis cheiranthifolia subsp. suffruticosa David D. Keck 1933-9-21 2523 Orange dunes about town Sunset Beach Comment
  RSA0054945  Capsella bursa-pastoris Keith E. Hoffmaster 1927-2-12 395 Orange Santa Ana. Comment
  LA204284  Cardamine californica C. B. Wolf; 1931-3-6 1851 Orange Trabuco Camp Ground, Trabuco Canyon, west slope of the Santa Ana Mts Comment
  OBI6110  Cardamine californica Carl B. Wolf 1931-1-30 1826 Orange Claymine Cyn, Santa Ana mts 305 Comment
  RSA1442  Cardamine californica var. integrifolia J. T. Howell 1929-2-11 1226 Orange Claymine Canyon, Samta Ana Mts. 305 Comment
  RSA2078  Cardamine californica var. integrifolia C. B. Wolf 1931-3-6 1851 Orange Trabuco Canyon at Trabuco Camp Grounds, west slope of Santa Ana Mountains. 610 Comment
  POM202599  Cardaria draba L. M. Booth 1932-5-15 1197 Orange E of Hungtington Beach. Comment
  RSA696167  Cardaria draba Keith E. Hoffmaster 1932-5-30 s.n. Orange Santa Ana. Comment
  UC1543081  Cardionema ramosissimum Donald G. Nelson 1935-4-14 288 Orange mesa facing Newport Bay (along main coast hwy., Newport Beach); Newport Beach Comment
  CAS-BOT-BC17635  Carex alma Helen D. Geis 1902-1-1 503 Orange Near Santa Ana. Comment
  UCR174023  Carex barbarae A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33009 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
  CAS-BOT-BC118491  Carex praegracilis Helen D. Geis 1902-4-1 s.n. Orange Unspecified Comment
  CAS-BOT-BC118503  Carex praegracilis Helen D. Geis 1902-4-1 s.n. Orange Santa Ana Comment
  SEINET8068417 Image available Carex praegracilis H. D. Geis 1902-1 s.n. Orange Orange County Comment
  UCR261689  Carex spissa Dick Newell, Judy Booth, Jutta Burger, Bob Huttar 2014-6-29 382 Orange Peninsular Range; Santa Ana Mtns., Silverado Canyon, along Silverado Creek, 0.15 mi. due north of Silverado Canyon Rd. and 0.75 mi. upstream from Blackstar Rd. 328 Comment
  RSA759112  Carex spissa Robt. Allen, Reginald Durant 2008-9-28 s.n. Orange Laurel Spring, just below Harding Truck Trail. Survey Waypoint #85. Comment
  UCSB52779  Carex tumulicola Boutin, F. 1967-4-23 Orange San Clemente Island: E side of island; next major drainageway and canyon SE of Lemon Tank; at seasonal pool Comment
  SD40041  Carpobrotus chilensis Edith A. Purer 1932-8-31 4881 Orange Orange county along Route 101 Comment
  IRVC21981  Carpobrotus edulis B. Parry 1985-6-4 194 Orange [Crystal Cove State Park], bank below trailers at far end of trailer park above creek, San Joaquin Hills 40 Comment
  RSA683065  Castilleja affinis Fred M. Roberts 2003-3-19 5608 Orange Donna O'Neill Land Conservancy: Ridges west of Cristianitos Cyn., 1,750m NNW Sycamore gate and 315m W Cristianitos Rd. (Canada Gobernadora) 192 Comment
  RSA732124  Castilleja affinis A. C. Sanders, Fred M. Roberts 2008-4-8 34759 Orange Peninsular Range; Lomas de Santiago, Loma Ridge, SSE of Santiago Reservoir on Loma Ridge Spur Rd., above Dripping Springs Loop Rd. 457 Comment
  CAS-BOT-BC402186  Castilleja affinis subsp. affinis R. F. Thorne; E. W. Lathrop; W. Wisura 1977-4-27 49649 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. Comment
  UC407316  Castilleja densiflora subsp. gracilis LeRoy Abrams 1903-4-18 3266 Orange near Capistrano Comment
  HSC20518  Castilleja foliolosa S. M. Clapp 1966-4-10 31 Orange 4 mi. into Black Star Canyon 183 Comment
  UCR52606  Castilleja foliolosa Jeri Hirshberg 1988-6-7 s.n. Orange Santa Ana Mountains, Santa Ana Mountains 275 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
  UCSB47636  Castilleja foliolosa Roberts, Fred 1980-5-3 Orange Main Divide Truck Trail; on north side of road; 0.1 km south of Trabuco Peak; Santa Ana Mtns 1350 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
  RSA696336  Catalpa hybrida Marjorie Moody 1947-05 s.n. Orange No. Main St., Santa Ana, California. Comment
  RSA642524  Caulanthus heterophyllus D. E. Bramlet 1994-4-30 2376 Orange San Joaquin Hills. On ridgeline above Camarillo Canyon, beside the Camarillo Spur (E side) road. 1.5 km west of Laguna Cyn. and 198 m NE of the Shady-Camarillo Cyn. Road junction. 65 Comment
  RSA682761  Caulanthus heterophyllus Scott D. White, Amanda Duchardt 2003-3-27 8854 Orange Canyon bottom and west facing slopes above Canada Gobernadora. 91 Comment
  RSA749793  Caulanthus heterophyllus D. E. Bramlet 2008-4-1 4145 Orange Ridgeline in Upper Hicks Canyon, 162m S of the Haul Road. 346 Comment
  HSC25256  Ceanothus crassifolius Richard Spjut 1972-2-16 2207 Orange Cleveland National Forest of Santa Ana Mtns. 305 Comment
  RSA172250  Ceanothus crassifolius Robert F. Thorne 1963-7-26 32829 Orange Santa Ana Mts., Cleveland National Forest, Trabugo District. 1189 Comment
  UCSB31585  Ceanothus crassifolius Proctor, Donald 1962-3-18 Orange Silverado Canyon, Santa Ana Mts, 914 Comment
  RSA0054953  Ceanothus crassifolius Keith E. Hoffmaster 1935-4-19 851 Orange Santa Ana Mts. [Orange or Riverside]. Comment
  SEINET13945801 Image available Ceanothus crassifolius S. Lambert 1981-1 1957 Orange Cleveland Nat'l Forest, 19.7 mi E of hwy. 5 by hwy 74 at San Juan Trail, 2100 ft elev. 640 Comment
  RSA542418  Ceanothus integerrimus Fred M. Roberts, Karlin G. Marsh 1987-5-14 3440 Orange Santa Ana Moutains: Upper Trabuco Canyon, Trabuco Canyon Trail , 1.3 km NE Los Pinos Peak 1231 Comment
  RSA797906  Ceanothus integerrimus Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49816 Orange Santa Ana Mountains: Trabuco Canyon. Comment
  SD255266  Ceanothus integerrimus Robert F. Thorne, E. W. Lathrop 1977-5-18 49742 Orange Santa Ana Mountains: summit of Santiago Peak. 1733 Comment
  RSA16472  Ceanothus integerrimus var. californicus Percy C. Everett 1935-6-19 7236 Orange Trabuco Canyon, 1mile below W summit of truck trail. 1006 Comment
  RSA21234  Ceanothus leucodermis E. R. Johnson 1937-4-6 8505 Orange Rancho Santa Ana, Santa Ana Canyon south of Ranch Buildings. 122 Comment
  RSA659543  Ceanothus leucodermis P. Shirokawa 1998-5-7 19 Orange Cleveland National Forest- Trabuco Ranger District, 2.3 miles from Ortega Highway (State Highway 74) on North Main Divide Road 960 Comment
  RSA12375  Ceanothus megacarpus Carl B. Wolf 1934-3-21 5577 Orange Santa Ana River, Santa Ana Canyon, 1/2 mi. S.W. of Mexican Houses, Rancho Santa Ana. 122 Comment
  SD236395  Ceanothus megacarpus A. C. Sanders, Fred M. Roberts, Amber ONeal, D. E. Bramlet 2008-5-9 35301 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, along old dirt road, c. 1.25 mi ESE of Walnut Cyn Reservoir. 340 Comment
  RSA542420  Ceanothus megacarpus var. megacarpus Fred M. Roberts, Karlin G. Marsh, Gordon Marsh 1988-4-26 3953 Orange San Joaquin Hills: hill between Pelican and Signal Hills, 0.8km ENE Pelican Hill. 207 Comment
  UCSB22737  Ceanothus megacarpus var. megacarpus Van Rensselaer, Maunsell 1941-7-12 Orange about 3 miles South of Laguna Beach Comment
  SD247717  Ceanothus oliganthus R. F. Thorne, C. W. Tilforth, E. W. Lathrop. 1977-4-27 49701 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  RSA488123  Ceanothus oliganthus var. sorediatus Fred M. Roberts, Karlin G. Marsh 1984-2-15 1186 Orange Caspers Regional Park, south rim of Lucas Canyon along Rancho Carrillo Rd., 4.2 km NE Visitor Center; 0.2 km NW Lucas Survey Marker. 420 Comment
Read comments
Sep 17 2014
  POM19055  Ceanothus papillosus var. roweanus F. W. Peirson 1923-5-6 3492 Orange Trail to Santiago Peak from Holy Jim Canyon. 991 Comment
  RSA399811  Ceanothus papillosus var. roweanus Albert J. Perkins 1917-4-21 s.n. Orange Santiago Peak. South side. Comment
  RSA17567  Ceanothus spinosus Carl B. Wolf 1936-6-17 7950 Orange Along Ortega Hiway, San Juan canyon, 0.2 mi. W. of Riverside Co. line. 274 Comment
  RSA25809  Ceanothus spinosus Carl B. Wolf 1941-8-15 11151 Orange W. slope Santiago Truck trail to Santiago Pk. 1.2 mi. above F.S. Gate. 610 Comment
  RSA77487  Ceanothus spinosus F. W. Peirson 1925-4-10 5742 Orange In Silverado Canyon. 610 Comment
  SDSU10426  Ceanothus spinosus D. F. Howe 1947-4-4 1545 Orange Santa Ana Mtns. Comment
  UC718318  Ceanothus spinosus Carl B. Wolf 1936-6-17 7950 Orange along Ortega Highway 2/10 mi w Riverside Co. Line (San Juan Canyon); Santa Ana Mts., San Juan Canyon 274 Comment
  RSA171020  Ceanothus tomentosus var. olivaceus Robert F. Thorne 1963-7-26 32837 Orange In Tin Mine Canyon above Beek's Spring, Trabuco District, Santa Ana Mts., Cleveland National Forest. 854 Comment
Read comments
Apr 25 2011
  LA97592  Ceanothus verrucosus D. S. Verity; Fred Lang 1972-1-7 sn Orange hills behind South Laguna Comment
Read comments
Nov 26 2016
  UCR130351  Celtis sinensis A. C. Sanders, Mark A. Elvin 2003-10-12 27326 Orange Southern Coastal Slope, Irvine, UCI Arboretum, UCI campus near intersection of Jamboree Blvd. and Campus Dr. 15 Comment
  UCR31896  Cenchrus ciliaris Jan West 1983-10-8 s.n. Orange Orange, Fwy right of way along the Newport Fwy (#55) at its intersection with Chapman Avenue Comment
  CAS-BOT-BC184957  Cenchrus longispinus John Thomas Howell 1927-7-18 2795 Orange Santa Ana River bottom, Santa Ana Canon [Canyon]. 152 Comment
  RSA651760  Cenchrus longispinus Diane T. Liggett 1981-5-16 15 Orange Riverside Freeway (91) east to Gypsum Canyon Road, north to Featherly Park entrance, east to bike trail, 0.4 km east. Comment
  RSA697730  Cenchrus spinifex J. Vlahos 1933-10-5 s.n. Orange Santa Ana River Bed by 17th St. bridge. Comment
  CAS-BOT-BC277102  Centaurea melitensis Ira L. Wiggins 1966-5-25 20663 Orange Along Nutwood Lane, south margin of campus of CSCF, Fullerton Comment
  RSA752850  Centaurea melitensis Fred M. Roberts 2009-4-21 7154 Orange Dana Point Headlands: southern cliffs, 0.7 km W Marine Institute at Dana Point Harbor. CNLM Dana Point Preserve. 3 Comment
  UCR239619  Centaurea melitensis Fred M. Roberts 2012-4-24 7518 Orange San Joaquin Hills, Buck Gully, west of intersection of Ridge Park Road and Newport Coast Drive, 1.5 km west of Signal Peak 179 Comment
  RSA647885  Centaurea melitensis Mark Breidenbaugh, Caralisa Breidenbaugh 1992-5-24 35 Orange 1000 ft. northwest of Chino Hills State Park Boundary. 243 Comment
  RSA791494  Centaurea melitensis R. F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49610 Orange Santa Ana Mountains: along Ortega Highway (74) about 2.5 miles above San Juan Fire Station Comment
  UCR93176  Centaurea repens Jan West 1994-9-15 s.n. Orange Irvine, Jamboree Rd. 61 Comment
  CDA7330  Centaurea solstitialis Robert L. Pope 1957-9-5 Orange 0 Comment
  RSA80651  Centaurium venustum P. A. Munz, E. K. Balls 1952-8-19 17927 Orange El Cariso Camp Ground W of Ortega summit, Santa Ana Mts. Comment
Read comments
Nov 1 2013
  UCR230837  Centaurium venustum Dick Newell, Judy Booth 2011-6-26 195 Orange Peninsular Range; Santa Ana Mtns., Long Canyon Rd., NW of Hwy 74, Cleveland National Forest 965 Comment
  RSA725538  Centranthus ruber Fred M. Roberts, Robert L. Allen 2007-9-28 6608 Orange Santa Ana Mtns.: Silverado Cyn., along Silverado Cyn. Rd. at eastern edge of town of Silverado. 347 Comment
  CAS-BOT-BC288844  Centromadia parryi subsp. australis David D. Keck 1932-9-30 1897 Orange Ca 5 miles S of Santa Ana on road to Newport Beach Comment
  UC1424929  Centromadia parryi subsp. australis C. W. Tilforth 1975-9-6 1047 Orange ne shoreline Upper Bay; Newport Beach Comment
  UCR238167  Centromadia parryi subsp. australis Mark A. Elvin, Peter A. Bowler 2003-6-28 2957 Orange Southern Coast, Irvine, San Joaquin Freshwater Marsh, adjacent to UCI campus, SSE of intersection of Jamboree Blvd. and Campus Dr. 2 Comment
  JEPS3954  Cephalaria syriaca M. Alice King 1908-4-15 Orange Santa Ana, Walnut Grove Walnut Grove; Santa Ana, Walnut Grove Comment
  CAS-BOT-BC142123  Cercocarpus betuloides James R. Shevock 1978-4-26 5893 Orange On the divide road, FS 3S04, between Beeks Place and Sierra Peak - Santa Ana Mountains, Cleveland National Forest 1097 Comment
  RSA172271  Cercocarpus betuloides Robert F. Thorne 1963-7-26 32844 Orange Tin Mine Canyon above Beek's Spring, Trabuco District, Cleveland National Forest 854 Comment
  RSA698630  Cercocarpus betuloides Dorothy Sammis s.n. Orange Silverado Canyon Comment
  RSA587870  Chaenactis artemisiifolia Fred M. Roberts 1990-5-16 4630 Orange Santa Ana Mtns: Small canyon along SE side of Irvine Mesa, 3.5 km N Bolero Lookout 396 Comment
  RSA734852  Chaenactis glabriuscula A. C. Sanders, Mitch Provance 2008-5-20 35415 Orange Lomas de Santiago area, Santiago Creek Canyon, c. 3/4 mile below Modjeska Canyon confluence 345 Comment
  UCSB48214  Chaenactis glabriuscula Roberts, Fred 1981-5-3 Orange Santa Ana Mtns.; Hot Springs Canyon, 0.8 km. by road N of San Juan Guard Station 256 Comment
  RSA731964  Chaenactis glabriuscula A. Sanders, Fred M. Roberts 2008-4-22 34989 Orange Lomas de Santiago, lower Hicks Canyon haul road, just above Irvine Ranch gate and road to cement plant, c. 1 mi. NE of Rattlesnake Reservoir. 213 Comment
  HSC5295  Chaenactis glabriuscula var. glabriuscula J. W. Johnson 1961-3-29 Orange Newport Beach Comment
  LA203102  Chaenactis glabriuscula var. 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
  UCR209359  Chaenactis glabriuscula var. glabriuscula Fred M. Roberts, D. E. Bramlet, Megan Lulow 2008-4-4 6845 Orange Lomas de Santiago, Loma Ridge, at Calochortus Ridge near East Lomas Ridge Road, 0.7 km east of Bee Peak, Irvine Ranch Conservancy 509 Comment
  RSA0008379  Chaenactis glabriuscula var. orcuttiana I. M. Johnston 1924-7-10 s.n. Orange 1/2 mile S mouth Aliso Canyon. Comment
  CDA21594  Chamaesyce albomarginata Mark A. Elvin, B. S. Herhus 2006-11-4 5255 Orange Southern Coastal; Huntington Beach; 1.5 km southwest of Wintersburg, southwest of junction Slater and Goldenwest; Shipley Nature Center. Comment
  HSC25233  Chamaesyce albomarginata R. W. Spjut 1972-2-22 2231 Orange Santa Ana Mtns., Cleveland National Forest, along Hwy. 74 305 Comment
  RSA435978  Chamaesyce albomarginata Josephine Derigo 1941-7-17 s.n. Orange Anaheim. Comment
  UC570789  Chamaesyce polycarpa H. L. Mason 1926-4-25 2912 Orange 5 mi s Laguna Comment
  RSA542538  Chamaesyce polycarpa var. polycarpa Fred M. Roberts 1988-5-13 3968 Orange Lomas de Santiago: Loma Ridge, Upper Limestone Canyon near spring, 2.3 km NW Bolero Lookout. 439 Comment
  RSA685788  Cheilanthes J. F. James 1879-4-11 212 Orange San Juan Capistrano Comment
Read comments
Nov 22 2013
  RSA797473  Cheilanthes clevelandii R. F. Thorne 1977-11-21 49986 Orange Santa Ana Mountains: tributary canyon to San Juan Canyon about 2 miles above San Juan Fire Station Comment
  RSA631393  Cheilanthes covillei Valerie L. Soza, LeRoy Gross 1999-6-7 478 Orange West side of Modjeska Peak, along Main Divide Road. 1448 Comment
  RSA731927  Chenopodium album Fred M. Roberts, Sandy Leatherman 2007-11-27 6683 Orange Yorba Linda: drainage channel on east side of Amberdale Dr. ca. 0.3 km S Fairmont Blvd. 118 Comment
  SD236265  Chenopodium album A. C. Sanders, Fred M. Roberts 2008-9-18 36065 Orange Peninsular Range; Santa Ana Mtns Foothills: Lomas de Santiago, Santiago Creek Canyon ca. 1 mile above the highway bridge (El Roro 7.5'Q) 320 Comment
  IRVC21772  Chenopodium ambrosioides Fred M. Roberts 1984-11-27 1440 Orange Novia St. bridge over San Juan Creek, 0.6km S Bench Mark 133, San Juan Capistrano 31 Comment
  JEPS59701  Chenopodium ambrosioides L. M. Booth 1932-7-25 1312 Orange Coastal Santa Ana River Comment
  POM122883  Chenopodium ambrosioides Marcus E. Jones 1924-8-26 s.n. Orange Newport. Comment
  IRVC25457  Chenopodium californicum Fred M. Roberts 1987-4-21 3390 Orange Aliso Creek, Aliso Creek Bike Trail, 3.0km ENE Moulton Peak, Aliso Viejo 73 Comment
  RSA734812  Chenopodium californicum A. C. Sanders, Fred M. Roberts 2008-3-25 34577 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
  UC1971225  Chenopodium californicum Scott D. White, Noel Davis 1998-5-21 6546 Orange MISSION VIEJO AREA: Aliso Creek watershed, east of El Toro Rd. just N of junction. w/ Valley Vista Wy. Large proposed subdivision called Saddleback Meadow. USGS 7.5' Santiago Peak quad. Comment
  UCD98280  Chenopodium macrospermum B. Pitzer 1996-4-30 2785 Orange Upper Newport Bay: Calif. Dept. Fish and Game Ecological Reserve, off (W of) Jamboree Rd. 1 Comment
  RSA64797  Chenopodium macrospermum var. farinosum F. W. Peirson 1919-11-8 1826 Orange Aliso Creek. 0 Comment
  RSA581663  Chenopodium multifidum Tony Bomkamp 1995-06 s.n. Orange Rancho Mission Viejo, floodplain of Canada Gobernadora W of Casper Regional Park. 140 Comment
  IRVC385  Chenopodium murale McGuire 1965-4-17 Orange Corona del Mar. Newport Beach Comment
  IRVC405  Chenopodium murale S. Park 1965-3-26 Orange Corona del Mar, alley between Narcissus Ave. and Marigold Ave. Newport Beach Comment
  RSA752040  Chenopodium murale Fred M. Roberts 2008-3-27 6808 Orange Dana Point: Dana Point Headlands, CNLM Preserve near NE Gate, 0.5km W Marine Institute (Dana Point Harbor). 75 Comment
  SD143949  Chenopodium murale Scott D. White 1993-3-5 1120 Orange Marine Corps Air Station, southeast of Red Hill Ave. and northeast of Barranca. 14 Comment
  RSA263  Chenopodium murale J. T. Howell 1927-7-27 486 Orange Near ranch houses, Rancho Santa Ana 152 Comment
  CLARK-A1528-977  Chenopodium rubrum Patricia A. Andrews 1975-6-26 Orange Capistrano Bay Beach 9 Comment
  IRVC25223  Chenopodium rubrum Roger Rienke 1988-10-30 2 Orange Newport Back Bay Newport Beach Comment
  RSA0004893  Chorizanthe chrysacantha P. A. Munz, R. D. Harwood 1920-4-17 3775 Orange Laguna Beach. Bluffs along coast Comment
  POM50446  Chorizanthe parryi var. fernandina Helen D. Geis 1902-1 541 Orange Near Santa Ana Comment
  UCR147627  Chorizanthe parryi var. fernandina Helen D. Geis 1902-3 541 Orange Coastal Plains & Basins; South Coastal Plain region, 'hills near Santa Ana Comment
  RSA678497  Chorizanthe procumbens Fred M. Roberts, Robert L. Allen, Carol Roberts 2003-5-11 5845 Orange Dana Point Headlands: 0.8km SSW Richard Henry Dana School north of Marguerita Drive. 76 Comment
  RSA785186  Chorizanthe procumbens D. E. Bramlet 1983-5-28 1388 Orange Dana Point, 154 m SW of Pacifc Coast Highway 73 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
  RSA13173  Chorizanthe staticoides Percy C. Everett 1935-4-29 6711 Orange 7/10 of a mile west of Esperanza, Santa Ana canyon.. 152 Comment
  RSA562719  Chorizanthe staticoides Steve Boyd, Tim S. Ross 1992-5-19 7422 Orange Southern Santa Ana Mountains San Mateo Canyon Wilderness Area. Western edge of the wilderness along Lucas Canyon Trail from access road to Rancho Carrillo (7S06) N into Aliso Canyon,. 366 Comment
  RSA584706  Chorizanthe staticoides Fred M. Roberts, Kathy Keane 1988-5-26 4010 Orange Rancho Mission Viejo: hill above the confluence of Gabino Canyon and Christianitos Canyon, c.a. 1 km N TRW Testing facility. 157 Comment
  RSA587873  Chorizanthe staticoides Fred M. Roberts, Carol A. Roberts 1990-5-16 4627 Orange Santa Ana Mtns: Small canyon along SE side of Irvine Mesa, 3.5 km N Bolero Lookout 396 Comment
  UC1442607  Chorizanthe staticoides Karlin G. Marsh 1977-10-5 Orange Ford Aeronutronics property near corner of MacArthur Blvd and Bison Ave. right-of-way; Newport Beach, Ford Aeronutronics property Comment
  UC1618108  Chorizanthe staticoides Donald G. Nelson 1936-6-5 433 Orange Hills NE of Fullerton 91 Comment
  UCR192985  Chorizanthe staticoides A. C. Sanders, Fred M. Roberts 2008-5-6 35214 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hicks Canyon near Irvine Ranch gate and road junction to cement plant 180 Comment
  UCR277171  Chrysanthemoides monilifera subsp. monilifera R. E. Riefner Jr. 2012-2-22 12- 40 Orange South Coast, city of Laguna Beach, south of Goff Island, Montage Resort, Treasure Island Park area, west of Pacific Coast Hwy 7 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
  UC1598731  Cicuta maculata var. bolanderi Lawrence M. Booth 1932-7-29 1333 Orange Newport Lagoon Comment
  IRVC9096  Cirsium brevistylum C. A. Taylor 1966-5-18 66 -116 Orange Santa Ana Canyon, Old Rancho Santa Ana Botanic Garden site; full sun on flats and slopes. Chino Hills Comment
  POM202172  Cirsium brevistylum L. M. Booth 1932-5-15 1199 Orange Santa Ana River, 1/2 miles from ocean Comment
  RSA0070676  Cirsium occidentale var. californicum R. D. Goeden, D. W. Ricker 1965-6-21 s.n. Orange Pacific Coast: Dana Point. 76 Comment
  RSA0054911  Cirsium occidentale var. coulteri Aileen Adams 1932-4-20 s.n. Orange Peter's Canyon. Comment
  UCR194997  Cirsium vulgare A. C. Sanders, Fred M. Roberts 2008-8-7 36000 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon at powerline crossing, 1.0 mi. (air) SSE of Walnut Canyon Reservoir 226 Comment
  RSA769611  Clarkia E. W. Lathrop 1974-6-27 7408 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  CAS-BOT-BC172418  Clarkia bottae Steve Boyd; Tim Ross 1992-5-19 7441 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of the wilderness in Lucas Canyon from crossing of creek by Lucas Canyon Trail, downstream to confluence with aliso Canyon. 335 Comment
  RSA0013955  Clarkia bottae Fred M. Roberts 2008-5-7 6942 Orange Lomas de Santiago: Loma Ridge, Limestone Ridge between Dripping Spr. and Limestone Cyn., 3.5 km NW Bolero Lookout and 1.7 km E Bee Peak. Irvine Ranch Conservancy. 481 Comment
  SDSU8634  Clarkia bottae Ruth Haaf, Josephine Morehous 1932-5-28 Orange Carbon Canyon Comment
Read comments
Jan 24 2013
  UCR193001  Clarkia bottae A. C. Sanders, T. B. Salvato 2008-5-13 35377 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Canyon above (S of) mouth of Hangman Tree Canyon, just below Modjeska Canyon confluence 366 Comment
  SD181431  Clarkia deflexa Valerie Soza, LeRoy Gross 1999-6-7 475 Orange Santa Ana Mountains: West side of Modjeska Peak, along Main Divide Road. 1448 Comment
  POM6353  Clarkia dudleyana L. T. Street, Williams 1919-5-10 2752 Orange Turnbull Canyon. Near Whittier 305 Comment
  RSA789218  Clarkia purpurea subsp. quadrivulnera Naomi S. Fraga, Duncan S. Bell 2009-5-11 2724 Orange Chiquita Trail 762 Comment
  UCR139447  Clarkia purpurea subsp. quadrivulnera E. R. Johnson 1933-6-1 4996 Orange Santa Ana River Canyon, Rancho Santa Ana Botanic Garden, 0.25 mi. SW of Muddy Springs near Roundtop Peak 427 Comment
  RSA699989  Claytonia perfoliata subsp. perfoliata L. C. Hull 1939-3-7 s.n. Orange Laguna Hills Comment
  POM305798  Clematis lasiantha Henry J. Ramsey, Henry J. Ramsey 1937-4-2 1061 Orange Capistrano Canyon. Comment
Read comments
Dec 17 2011
  SBBG128687  Clematis lasiantha R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49689 Orange Sierra Peak; Santa Ana Mtns 900 Comment
  CAS-BOT-BC92555  Clematis ligusticifolia John Thomas Howell 1927-8-13 2984 Orange Santa Ana River bottom. Santa Ana Canon [Canyon]. 152 Comment
  UC537273  Clematis ligusticifolia Lawrence M. Booth 1932-7-21 1290 Orange Anaheim Marsh Comment
  LA207215  Clematis pauciflora W. E. Pequegnat; August 1937 58 Orange Santa Ana Mts Comment
  UCSB29143  Clematis pauciflora Copp, Joseph 1962-3-9 Orange Calif. 74; 13.7 rd. mi. northeast of US 101 Comment
  POM504  Cleome isomeris Lois Clency 1914-07 s.n. Orange Laguna. Comment
  RSA303537  Cleome isomeris J. R. Shevock 1970-9-17 505 Orange Bolsa Chica Beach heights. 8 Comment
  RSA66687  Cleome isomeris F. W. Peirson 1924-2-10 4530 Orange southward from Corona del Mar. Comment
  RSA542395  Cneoridium dumosum Fred M. Roberts Jr. 1987-3-24 3271 Orange Laguna Beach: Goff Ridge, south of Nyes Place Rd., 0.9km NNE Goff Island. 169 Comment
  RSA590957  Cneoridium dumosum Fred M. Roberts Jr., Karlin G. Marsh 1991-4-10 4767 Orange Laguna Beach: South Laguna, Temple Hill, ridge between Upper Hobo Canyon and Aliso Gorge, 1.7km NW Niguel Hill summit. 219 Comment
  POM177568  Cnicus benedictus A. Gilman 1931-5-25 s.n. Orange Field Banning Comment
  RSA699998  Collinsia bicolor L. C. Hull 1934-4-15 s.n. Orange Laguna Hills Comment
  UCR256916  Collinsia concolor Naomi Fraga 2009-5-11 2713 Orange Santa Ana Mountains, Cleveland National Forest, San Juan Loop Trail just west of Sugarloaf Spur Trail 912 Comment
  RSA0117316  Collinsia parviflora Robert Allen, Fred M. Roberts, Chris M. Barnhill 2003-4-26 12364 Orange Santa Ana Mountains, San Juan Canyon, San Juan Loop Trail near Upper San Juan Campground. 523 Comment
  POM15031  Comarostaphylis diversifolia subsp. diversifolia Mary F. Spencer 1932-05 1971 Orange Canyon Prope. 61 Comment
Read comments
Nov 19 2013
  IRVC29723  Conium maculatum Mark A. Elvin, Barry S. Nerhus 2006-11-4 5254 Orange Huntington Beach; 1.5 km SW of Wintersburg, SW of jct Slater and Goldenwest; Shipley Nature Center. Southern Coastal 1 Comment
  SD127479  Conium maculatum Reid Moran, Gordon Marsh and Jack Reveal 1977-6-13 24237 Orange Willow Canyon, tributary of Laguna Canyon 124 Comment
  UCR73105  Conium maculatum Scott D. White 1992-9-23 861 Orange Vicinity of Olinda, near city of Brea, immediately north of Carbon Canyon Road and east of Placentia Ave.; c. 1 mi. (airline) SSE of Tonner Canyon 183 Comment
  RSA470554  Conium maculatum Albert J. Perkins 1914-6-20 s.n. Orange Santa Ana. Comment
  IRVC963  Convolvulus arvensis J. Morgan 1965-3-12 Orange Corona del Mar High School. Newport Beach Comment
  POM201722  Convolvulus arvensis L. M. Booth 1932-5-26 1126 Orange Newport Bay Comment
  UCR109770  Convolvulus arvensis R. D. Goeden, Don W. Ricker 1965-6-15 s.n. Orange Santiago Blvd., Villa Park 91 Comment
  RSA184134  Convolvulus arvensis I. L. Wiggins 1965-9-3 20317 Orange Roadside along Yorba Linda Boulevard, between State College Boulevard and Placentia Avenue, Fullerton. Comment
  RSA0045316  Convolvulus subacaulis Ophelia Frost 1932-4-2 s.n. Orange At the Dam above Orange County Road. Comment
  UCR220029  Conyza bonariensis 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
  RSA91008  Conyza canadensis F. W. Peirson 1924-10-19 5242 Orange Wintersberg. Comment
  IRVC24188  Conyza coulteri Fred M. Roberts 1985-9-17 2264 Orange Irvine; lot between Walnut Avenue, Harvard Avenue and Peter's Creek Channel. southern coastal 20 Comment
  RSA782120  Conyza coulteri T. B. Salvato 2010-10-27 5139 Orange Dana Point Headlands, Hilltop Park, north of Scenic Dr. and west of Green Lantern St., overlooking Dana Point Harbor 67 Comment
  IRVC15219  Conyza coulteri Karlin G. Marsh 1977-9-8 none Orange Newport Beach; in arroyo between MacArthur Blvd. and Ford Aeroneutronics. southern coastal 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
  UC537013  Cordylanthus maritimus subsp. maritimus Lawrence M. Booth 1932-7-19 1273 Orange Bolsas Marsh Comment
  RSA0045606  Cordylanthus pilosus R. H. McArthur 1934-5-19 s.n. Orange Live oak Canyon. Comment
  RSA733933  Cordylanthus rigidus Keith E. Hoffmaster 1934-7-15 118 Orange Santa Ana Mts (Modjeska) Comment
  RSA412301  Cordylanthus rigidus subsp. setiger M. B. Dunkle 1934-6-18 3992 Orange San Juan Canyon, Southern Coastal. 305 Comment
  RSA506432  Cordylanthus rigidus subsp. setiger Kathy Harper 1988-7-16 s.n. Orange Cleveland National Forest, on Hwy 74 near El Cariso. SE of Hwy Comment
  CAS-BOT-BC287838  Coreopsis californica Marcus E. Jones 1926-3-10 s.n. Orange Near Santa Ana Canon Comment
  HSC5417  Corethrogyne filaginifolia J. W. Johnson 1961-3-29 Orange Newport Beach, N slope overlooking upper Newport Bay Comment
  SD236212  Corethrogyne filaginifolia A. C. Sanders, Fred M. Roberts 2008-7-16 35825 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago, along road in lower Limestone Canyon, near junction with Harding Truck Trail (El Toro 7.5'Q) 289 Comment
  UC537259  Corethrogyne filaginifolia L. M. Booth 1933-8-26 1385 Orange Newport Lagoon Comment
  UC1719426  Coronopus didymus D. Atwood 1993-3-26 17688 Orange Corona Del Mar State Park along Newport Coast Drive 0 Comment
  UCR217460  Coronopus didymus Mark A. Elvin 2003-2-23 2307 Orange South Coast, Irvine, San Joaquin Marsh along the berm of San Diego Creek 3 Comment
  RSA731648  Cortaderia selloana Fred M. Roberts 2007-10-29 6631 Orange Laguna Beach: Temple Hill, Nyes Place, c.a. 0.2 km S Moulton Meadows Park. 232 Comment
  CAS-BOT-BC287223  Cotula australis C. L. Hitchcock; C. V. Muhlick 1964-3-17 23067 Orange 8 miles E of Yorba Linda, Santa Ana Canyon 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
  CAS-BOT-BC291358  Cotula coronopifolia C. W. Tilforth; John Dourley 1969-4-22 184 Orange San Clemente 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
  UCR182817  Cotyledon orbiculata R. E. Riefner Jr. 2006-8-25 06- 407 Orange South Coast, Dana Point Harbor, Dana Point Harbor Dr. at Ensenada Pl. 13 Comment
  IRVC9154  Crassula connata C. Leavell 1966-3-16 61 Orange El Toro Rd. near Post Office; in open field. El Toro Comment
  RSA732122  Crassula connata A. C. Sanders, Fred M. Roberts 2008-4-8 34725 Orange Peninsular Range: Lomas de Santiago, Loma Ridge, head of Hicks Canyon. S of Santiago Reservoir. 351 Comment
  POM3584  Cressa truxillensis D. L. Crawford s.n. Orange Laguna Beach Comment
  UCR107220  Cressa truxillensis Scott D. White 1998-6-26 6781 Orange Irvine, University of California, Irvine campus: low-lying seasonal wetland along mapped intermittent 'blueline' stream just north of Bonita Canyon Drive 70 Comment
  RSA0009408  Cressa truxillensis Marcus E. Jones 1924-8-26 s.n. Orange Newport. Comment
  UCD169755  Crocanthemum aldersonii R. F. Thorne; C. W. Tilforth, E. W. Lathrop 1977-4-27 49679 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. 457 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
  JEPS52469  Croton californicus Alice King Mar. 1908 Orange Anaheim Plain Comment
  POM17485  Croton californicus P. A. Munz 1923-4-1 6913 Orange 2 miles north of Laguna. 5 Comment
  RSA4829  Croton californicus James Snow 1932-1 s.n. Orange Bryant Ranch, near Long Beach. Station #1. Plant #3. Comment
  RSA734902  Croton setiger A. C. Sanders 2008-5-28 35439 Orange Lomas de Santiago, Bee Flat at mouth of Limestone Canyon. 264 Comment
  UCR228773  Croton setiger Dick Newell, Don Millar 2011-5-24 166 Orange Peninsular Range; Santa Ana Mtns., above Outdoor Education Center on MWD service road, 1.6 miles NW (311 deg. ) of Irvine Lake dam 244 Comment
  RSA0029036  Cryptantha Keith E. Hoffmaster 1934-4-8 137 Orange Santa Ana Mts. Comment
  IRVC24791  Cryptantha clevelandii Karlin G. Marsh 1989-3-15 Orange Lomas Ridge, west branch of Rattlesnake Canyon; coastal sage scrub. Lomas de Santiago Comment
  RSA643  Cryptantha clevelandii J. T. Howell 1928-4-7 897 Orange Bee Canon, Rancho Santa Ana 152 Comment
  POM49204  Cryptantha clevelandii var. florosa L. R. Abrams 1901-6-15 1821 Orange Santiago Peak trail. Comment
  UCSB52918  Cryptantha clevelandii var. florosa Roberts, Jr., Fred 1983-3-10 Orange Dana Point Headlands: south of Scenic Dr., 0.3 km. W Dana Point Harbor; 0.8 km. S Richard Henry Dana School 60 Comment
  RSA542657  Cryptantha intermedia Fred M. Roberts 1988-4-10 3902 Orange Lomas De Santiago: Loma Ridge, Upper Limestone Canyon, c.a. 3.2 kilometer NNW Bolero Lookout. 347 Comment
  RSA678721  Cryptantha intermedia Fred M. Roberts, Robert Allen, Carol Roberts 2003-5-11 s.n. Orange Dana Point Headlands: 0.8km SSW Richard Henry Dana School north of Marguerita Drive 76 Comment
  RSA699343  Cryptantha intermedia Anonymous s.n. Orange Laguna Comment
  RSA733630  Cryptantha microstachys Keith E. Hoffmaster 1935-5-5 620 Orange San Juan Canyon., Santa Ana Mts. Comment
  UCR209368  Cryptantha microstachys Fred M. Roberts, Linda Farley 2008-3-28 6829 Orange Santa Ana Mountains, Upper Weir Canyon, Irvine Ranch Conservancy, 3.3 km east-northeast of Robbers Peak on ridge north of canyon 427 Comment
  UCR47757  Cryptantha microstachys F. R. Fosberg 1930-6-15 S- 02937 Orange Santa Ana Mtns, Santiago Canyon, near Modjeska's home. Comment
  RSA599588  Cryptantha microstachys Fred M. Roberts, Trish Smith, Garrett Nichols 1995-4-27 4936 Orange Irvine: San Joaquin Hills, Moro Canyon, Upper West Fork, c.a. 1.8 km SE Signal peak. 274 Comment
Read comments
Oct 25 2017
  CDA42236  Cucurbita digitata Bellue - Paddock Oct 1944 Orange Near Ry. [Railway?] 0 Comment
  HSC7010  Cucurbita foetidissima J. W. Johnson 1961-3-29 Orange Newport Beach, N slope overlooking upper Newport Bay Comment
  UCR191219  Cucurbita foetidissima A. C. Sanders 2008-4-29 35141 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, western end of Loma Ridge on road to sheriff's training facility, c. 1.5 mi. SW of Santiago Reservoir 335 Comment
  UCR217302  Cucurbita foetidissima Mark A. Elvin 2003-3-30 2398 Orange South Coast, north side of UC Irvine Preserve, between core of UCI campus (E Peltason Dr.) and Hwy 73 69 Comment
  SD239717  Cucurbita pepo A. C. Sanders, Fred M. Roberts 2008-9-18 36087 Orange Peninsular Range; Santa Ana Mountains Foothills: Lomas de Santiago, Santiago Creek Canyon c. 0.5-0.8 miles above the highway bridge (El Toro 7.5'Q) 299 Comment
  CAS-BOT-BC506647  Cupaniopsis anacardioides R. E. Riefner, Jr. 2014-11-28 14 -407 Orange Cit of Newport Beach, SW corner Jamboree Rd. at MacArthur Blvd. 16 Comment
  CAS-BOT-BC80568  Cupressus forbesii P. A. Munz; I. M. Johnston 1922-5-18 5566 Orange Santa Ana Mts. 457 Comment
  CAS-BOT-BC80572  Cupressus forbesii C. B. Wolf; E. R. Johnson 1934-3-21 5578 Orange Rancho Santa Ana, Santa Ana Canyon, Santa Ana River 1/2 mi. S.W. of mexican houses 121 Comment
  CAS-BOT-BC80576  Cupressus forbesii C. B. Wolf 1935-1-2 6278 Orange Santa Ana Mts., slopes of Sierra Peak, W. of [Claymine] Clay Mine Canyon along road to peak 670 Comment
  RSA713906  Cupressus forbesii Richard E. Riefner 2005-4-15 5 -202 Orange Santa Ana Mountains, Gypsum Canyon, S end of Gypsum Canyon Rd., S of 91-Freeway. 160 Comment
  RSA7201  Cupressus forbesii B. D. Stark 1933-3-17 4532 -C Orange Claymine Canyon, Santa Ana Mts. 609 Comment
  RSA730999  Cupressus forbesii Fred M. Roberts, B. Allen, D. Olsen 2007-1-19 6502 Orange Beek s Place along Main Divide Rd., 4.1 km NW Pleasant Peak. 852 Comment
  UC1445981  Cupressus forbesii J. T. Howell 1927-8-10 2983 a Orange Clay Mine branch of Santa Ana Canyon Sierra Peak Comment
  UC813435  Cupressus forbesii P. A. Munz and I. M. Johnston 1922-5-18 5566 Orange Santa Ana Mts. 457 Comment
  NY16665  Cupressus guadalupensis var. forbesii C. B. Wolf 1935-1-2 6279 Orange This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  RSA690978  Cuscuta californica Scott D. White, Michael Honer 2003-5-29 9432 Orange Santa Ana Mountain Foothills: Rancho Mission Viejo. Steep, gen. south-facing slopes above trib. to Trampas Canyon, ca. 0.6 air mi. S of Ortega hwy and ca. ca. 0.5 mi west of Trampas Cyn. 122 Comment
  UC284233  Cuscuta californica P. A. Munz 1923-7-8 7330 Orange Santa Ana River Comment
  RSA503199  Cuscuta ceanothi G. D. Wallace, G. Cromwell 1966-4-16 457 Orange W edge of Cleveland Nat. For. about 5 mi. E of San Juan Capistrano, in the Santa Ana Mountains, in Hot Springs Canyon. Comment
  RSA571  Cuscuta ceanothi J. T. Howell 1927-7-21 455 Orange Santa Ana River bottom, Rancho Santa Ana. 152 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
  RSA716729  Cuscuta subinclusa Fred M. Roberts 2004-8-21 6100 Orange Santa na Mtns.: Hot Springs Cyn., Hot Springs Cyn. Rd., c.a. 0.8km by road N jct. SR 74; 0.7km NNW Juan Rancho Survey Mark. 255 Comment
  RSA751790  Cuscuta subinclusa A. C. Sanders, Fred M. Roberts 2008-7-3 35688 Orange Weir Canyon, along Windy Ridge Rd. at hairpin turn/road junction below huge sandstone boulder (visible on Google Earth), 1.2 mi. SE of Walnut Canyon Reservoir. 275 Comment
  UCR228770  Cuscuta subinclusa Dick Newell, Don Millar 2011-7-19 213 Orange Peninsular Range; Santa Ana Mtns., foothills above Black Star Canyon Rd. (SCE access road), 3.15 mi. ENE (83 deg. ) of Irvine Lake dam 494 Comment
  JEPS59790  Cycloloma atriplicifolium Lawrence M. Booth 1932-7-30 1343 Orange near Huntington Beach; Santa Ana River channel Comment
  RSA716731  Cylindropuntia prolifera Fred M. Roberts, D. E. Bramlet 2004-11-5 6129 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, west slopes of Cristianitos Cyn., 0.79 km N Sycamore Gate and 0.18 km W Cristianitos Road. 146 Comment
  CAS-BOT-BC299754  Cynara cardunculus Le Roy Abrams 1901-6-1 1767 Orange Near Irvine Comment
  RSA758901  Cynara cardunculus subsp. flavescens A. C. Sanders, Fred M. Roberts 2008-6-17 35474 Orange Lomas de Santiago, East Loma Ridge Spur Road near Hicks Cyn. Haul Rd. 353 Comment
  CDA23574  Cynodon dactylon L. D. Lyons, Mark A. Elvin 2006-9-23 422 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
  UCD60070  Cynodon dactylon Beecher Crampton 1965-10-27 7578 Orange 2 miles east of Irvine, Irvine Blvd. Comment
  RSA184113  Cynodon dactylon I. L. Wiggins 1965-11-6 20353 Orange Near well #14, Kramer Oil Estates, near end of county road to Rancho Santa Ana. Comment
  SD253871  Cyperus Jim Riley 2013-10-15 118 Orange San Clemente area; 0.56 miles ESE intersection Avenida Pico and Camino La Pedriza; just N San Diego County line 68 Comment
  UCR266423  Cyperus difformis D. E. Bramlet 2009-11-20 4422 Orange South Coast, San Diego Creek between Irvine and Newport Back Bay 8 Comment
  RSA0028026  Cyperus eragrostis Fred M. Roberts 2012-9-6 7699 Orange San Joaquin Hills: Buck Gully, Buck Gully Trail, west end near Poppy Street entrance, 2.1 kilometers WNW Pelican Hill summit. 37 Comment
  SD245176  Cyperus eragrostis R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49572 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74). Along San Juan Creek. Comment
  SEINET7581659 Image available Cyperus eragrostis Sue A. Thompson, John E. Rawlins 1988-8-27 5256 Orange Cleveland National Forest, 3.8 mi E of San Juan Hot Springs on CA 74. 370 Comment
  RSA594874  Cyperus erythrorhizos Fred M. Roberts, W. R. Ferren 1991-12-1 4829 Orange San Joaquin Hills: Laguna Canyon, Upper Laguna Lake, 3.5 kilometers N junction El Toro Road, 4.9 kilometers ENE Signal Peak. 113 Comment
  UC537169  Cyperus esculentus Lawrence M. Booth 1932-7-25 1310 Orange 1 1/2 mi. from ocean Santa Ana R. Comment
  RSA731801  Cyperus involucratus Fred M. Roberts, Sandy Leatherman 2007-11-9 6641 Orange Santa Ana Mtns.: San Juan Canyon along San Juan Creek, 0.2km E community of San Juan Hot Springs. 222 Comment
  CAS-BOT-BC114245  Cyperus laevigatus Carl B. Wolf 1932-7-2 3812 Orange Carbon Canyon, 1/8 mi below La Vida Springs. 213 Comment
  RSA797602  Cyperus niger var. capitatus Robert F. Thorne 1977-11-21 49999 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs Comment
  CDA22513  Cyperus odoratus Mark A. Elvin, B. S. Herhus 2006-11-4 5244 Orange Southern Coastal; Huntington Beach; 1.5 km southwest of Wintersburg, southwest of junction Slater and Goldenwest; Shipley Nature Center. Comment
  RSA450865  Cyperus odoratus Gordon Marsh, Karlin G. Marsh 1977-11-21 s.n. Orange Santa Ana Mountains: San Juan Hot Springs. Comment
  RSA718966  Cyperus odoratus Fred M. Roberts, Robert L. Allen 2006-10-8 6414 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
  CAS-BOT-BC538087  Cyrtomium falcatum R. E. Riefner, Jr. 2012-1-16 12 -5 Orange City of Newport Beach, Corona Del Mar, beach area W of Morning Canyon Rd 1 Comment
  UC2031956  Cyrtomium falcatum R. E. Riefner Jr. 2012-1-16 12 -5 Orange City of Newport Beach, Corona Del Mar, beach area west of Morning Canyon Road Comment
  RSA295240  Dactyloctenium aegyptium E. Wegener 1970-8-11 LASCA- 948 Orange Near Costa Mesa. Comment
  CHSC116491  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
  IRVC27503  Datura stramonium Mark A. Elvin 2004-5-2 3417 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7km (air) NNW UC Irvine campus center. Southern Coastal 3 Comment
  JEPS12207  Datura stramonium Lawrence M. Booth 1932-7-30 1345 Orange near Newport Beach (Santa Ana River Basin); , near Newport Beach Comment
  RSA20216  Datura stramonium E. R. Johnson 1938-5-14 9409 Orange Rancho anta Ana, Santa Ana Canyon S. of pump house E. of ranch houses. 122 Comment
  RSA695  Datura wrightii J. T. Howell 1927-7-5 264 Orange Near ranch Lowers, Rancho Santa Ana. Comment
  RSA743455  Datura wrightii Fred M. Roberts 2008-7-10 7075 Orange Dana Point: Dana Point Headlands, CNLM Preserve near Outlook 2, 0.7 km W Marine Institute (Dana Point Harbor). 52 Comment
  UCR224158  Datura wrightii Fred M. Roberts 2008-7-10 7075 Orange South Coast, Dana Point Headlands, CNLM Preserve, near Outlook 2, 0.7 km west of Marine Institute, Dana Point Harbor 52 Comment
  RSA651331  Datura wrightii Candye Koehler 1981-4-11 81 -4 Orange Carbon Canyon Rd. #142 3.3mi. W. of Sleepy Hollow. 244 Comment
  UCD127408  Daucus pusillus Lawrence M. Booth 1932-5-12 1033 Orange Newport Bay. Comment
  UCR223961  Daucus pusillus Fred M. Roberts 2008-4-9 6857 Orange South Coast, Dana Point, Dana Point Headlands, CNLM Preserve, near Outlook 2, 0.7 km west of Marine Institute, Dana Point Harbor 52 Comment
  HSC24274  Deinandra fasciculata James Henrickson 1970-7-24 5001 Orange 3 mi. NW of Huntington Beach near sandy 'Rabbit' Island in Bolsa Chica Salt Marsh near Inner Bolsa Bay 1 Comment
  RSA747715  Deinandra fasciculata Fred M. Roberts 2008-7-10 7064 Orange Dana Point: Dana Point Headlands, CNLM Preserve, near Strands Road Gate, 0.8km WNW Marine Institute, Dana Point Harbor. 65 Comment
  CAS-BOT-BC299326  Deinandra fasciculata Joseph Andorfer Ewan 1932-7-28 7695 Orange Newport Bay near power house Comment
  RSA657681  Deinandra fasciculata Michael J. Graeser 1988-5-8 29 Orange Orange. Santiago Canyon Road. 1 mile north of Chapman Ave. Across from Holy Sepulcher Cemetary. Comment
  RSA759114  Deinandra kelloggii Robt Allen, Linnell R. Allen 2008-7-27 s.n. Orange Long Canyon Watershed, along Long Canyon Road, 128 m SE of junction with spur to Mystic Oaks (McConville Camp), 0.48 air miles upslope from junction with Ortega Hwy (SR74). 749 Comment
  RSA703199  Deinandra paniculata R. E. Riefner Jr. 2004-7-6 04 -302 Orange Upper Chiquita Canyon, vicinity of Oso Pkwy. and SR-241. 224 Comment
  UCR146881  Deinandra paniculata Kathleen Stockwell 1999-5-30 s.n. Orange South Coast, north of Cristianitos Road, San Clemente 61 Comment
Read comments
Jan 8 2013
  UC729868  Delphinium cardinale Carl B. Wolf 1932-7-2 3821 Orange 1/8 mi below La Vida Springs; Carbon Canyon 213 Comment
  RSA698564  Delphinium parryi Minor Warne 1934-4-28 s.n. Orange Ladd Canyon-Santa Ana Mts. PR8. Comment
  UC1607980  Delphinium parryi Donald G. Nelson 1935-4-6 247 Orange just e of San Juan Capistrano (and just s of boundary of Cleveland National Forest, branching northward from the summer ranger station at main Hwy up San Juan Canyon); San Juan Canyon Comment
  RSA552933  Delphinium parryi Fred M. Roberts, R. E. Riefner 1989-5-2 4334 Orange Aliso-Wood Canyons Regional Park. Lower Wood Canyons, 3.3km S Multon Peak. 43 Comment
  UCR18228  Delphinium patens Richard B. Flagler 1975-5-2 s.n. Orange Silvarado Canyon Comment
  CAS-BOT-BC116420  Delphinium patens subsp. hepaticoideum C. B. Wolf 1931-3-6 1856 Orange 1/2 mile below Trabuco Camp Ground, Trabuco Canyon, west slope of the Santa Ana Mts. 609 Comment
  POM8761  Delphinium patens subsp. hepaticoideum P. A. Munz, R. D. Harwood 1920-4-24 3749 Orange Santa Ana Mountains, Sierra [Freemont] Canyon 366 Comment
  CAS-BOT-BC82947  Dendromecon rigida G. R. Campbell 1949-4-18 13449 Orange Santa Ana Mountains. Santiago Peak. Comment
  CAS-BOT-BC82949  Dendromecon rigida A. M. White 1974-6-1 1361 Orange North of Silverado Canyon. Ca. 20 miles east of Santa Ana. 1005 Comment
  RSA0073654  Descurainia pinnata subsp. halictorum Fred M. Roberts 2010-3-12 7183 Orange Southeast Coast: Dana Point Headlands: Harbor Point Park, South of Green Lantern and west of Dana Point Harbor, c.a. 150 meters SE Interpretive Center. 50 Comment
  RSA689542  Descurainia pinnata subsp. halictorum R. E. Riefner 1999-5-22 99 -291 Orange City of Dana Point, beach west of Pacific Coast Hwy. South of Salt Creek near Ritz Carlton Hotel. USGS Quad: dana Point. 15 Comment
  UCR267190  Descurainia pinnata subsp. halictorum Fred M. Roberts 2010-3-12 7183 Orange Southeast Coast, DANA POINT HEADLANDS: Harbor Point Park, South of Green Lantern and west of Dana Point Harbor, c. 150 meters SE Interpretive Center 50 Comment
  CAS-BOT-BC483630  Dichelostemma capitatum A. M. White 1974-6-1 1430 Orange Ca. 20 miles east of Santa Ana norht of Silverado Canyon 822 Comment
  UCR192475  Dichelostemma capitatum A. C. Sanders, Fred M. Roberts 2008-3-25 34543 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  RSA122  Dichelostemma capitatum subsp. capitatum J. T. Howell 1928-2-7 812 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA627752  Dichelostemma capitatum subsp. capitatum Scott D. White 1998-3-18 6215 Orange University of California, Irvine campus: Site of proposed Research Park. Southwwest of main campus circlu, ca. halfway between Berkely Avenue and new freeway (Bonita Canyon). 37 Comment
  UCR188938  Dichondra micrantha Robert DeRuff 2006-6-1 313 Orange Newport Beach, Upper Newport Bay, 23rd Street on west side of the Bay 11 Comment
  RSA788966  Digitaria sanguinalis R. F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49579 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74) Comment
  SD251157  Diplachne fusca var. fascicularis Justin M. Wood 2010-9-29 2740 Orange Santa Ana Canyon: Santa Ana River, southwest of Green River Golf Course and north of Hwy 91 and Santa Ana River Trail. (Black Star Canyon ) 128 Comment
  UCR91554  Diplotaxis muralis A. C. Sanders 1990-10-6 10186 Orange Newport Bay, North Star County Beach Area on the SW end of the Bay, c. 2 km inland of Hwy 1. 3 Comment
  CHSC30537  Distichlis spicata T. B. Devine 1980-4-4 657 Orange Huntington Beach, beside Edinger Ave. ca. 1.5 mi. W. of jct. with Bolsa Chica Rd. Roadside between Edinger Ave. and drainage canal just So. of Naval Weapons Station. Comment
  RSA685922  Distichlis spicata Fred M. Roberts 2003-3-27 5632 Orange Rancho Mission Viejo:Donna O'Neill Land Conservancy, western slopes of Chistianitos Canyon, 0.25km N Sycamore Gate 0.13km W Cristianitos Road 116 Comment
  SD28114  Distichlis spicata Carl B. Wolf 1932-7-2 3815 Orange Carbon Canyon, 1/8 mile below La Vida Springs 213 Comment
  RSA699298  Dodecatheon clevelandii Jeanne Paxton 1934-2-25 s.n. Orange Sugar Loaf Canyon, Arch Beach Comment
  IRVC24786  Draba cuneifolia var. integrifolia Karlin G. Marsh 1989-3-4 Orange Lomas Ridge, ridge between Hicks and Rattlesnake Canyons. Lomas de Santiago 210 Comment
  UC1950970  Drymocallis glandulosa A. C. Sanders with Fred M. Roberts 2008-4-8 34762 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago, Loma Ridge, SSE of Santiago Reservoir on Loma Ridge Spur Rd., above Dripping Springs Loop Rd. El Toro 7.5' Quad. Comment
  HSC46674  Drymocallis glandulosa var. glandulosa Christopher Davidson 1977-5-18 5633 Orange Cleveland National Forest, Falcon campground 1006 Comment
  IRVC122  Dryopteris arguta A. S. Boughey 121 Orange [San Juan Canyon], Ortega Hwy, 1mi E San Juan Guard Sta. Santa Ana Mountains Comment
  IRVC129  Dryopteris arguta B. Simson 1965-4-2 Orange Silverado Canyon, Silverado. Santa Ana Mountains Comment
  POM179748  Dryopteris arguta Marcus E. Jones 1931-3-23 s.n. Orange Laguna Comment
  RSA698474  Dryopteris arguta R. H. McArthur 1934-4-14 s.n. Orange Laguna Canyon. Hillside. Comment
  RSA698476  Dryopteris arguta Minor Warne 1934-4-14 s.n. Orange Laguna Canyon Forks. Comment
  RSA749292  Dryopteris arguta Fred M. Roberts 1999-4-21 5175 Orange Lomas de Santiago: Loma Ridge, Limestone Cyn. along Dripping Spgs Rd., at mouth of Dripping Spgs. Cyn., 1.0 km W Silverado Sch. and 4.3 km NNW Bolero Lookout. 311 Comment
  RSA791466  Dryopteris arguta Keith E. Hoffmaster 1928-5-29 36 Orange San Onofre. Comment
Read comments
Nov 19 2013
  UCSB48105  Dryopteris arguta Fritzke, S.; Roberts, Fred 1982-4-3 Orange Santa Ana Mtns.: San Juan Canyon, 2.4km ENE San Juan Guard Station; 0.3km WSW Bench Mark 1100. 88 Comment
  IRVC136  Dryopteris cristata Bruce Reynolds 1965-4-29 HS 532 Orange Newport Beach; Balboa Island; 118 Amethyst Ave. Southern Coastal 3 Comment
  UCSB52867  Dudleya blochmaniae subsp. blochmaniae Roberts, Fred 1983-4-24 Orange Dana Point Headlands: south of Pacific Coast Hwy.; 0.5 km. NW Dana Point Harbor; 0.5 km. SSW Richard Henery Dana Sch. 85 Comment
  UC2059987  Dudleya cymosa subsp. ovatifolia K. Nakai 1979-10-30 542 Orange Santa Ana Mountains, Santiago Canyon. End of Modleska Road. Comment
  RSA48065  Dudleya edulis I. M. Johnston 1924-7-10 s.n. Orange 1/2 mile S mouth Aliso Canyon. Comment
  POM201797  Dudleya lanceolata L. M. Booth 1932-6-9 s.n. Orange Newport Bay Comment
  POM219195  Dudleya lanceolata L. C. Wheeler 1932-6-25 862 Orange Newport Bay. 6 Comment
  POM6592  Dudleya lanceolata P. A. Munz 1919-5-4 s.n. Orange Laguna canyon Comment
  UCR281804  Dudleya lanceolata Mitch Provance 2017-3-20 317- 127 Orange Coyote Hills, North Fullerton, East side of Gilbert St., 0.25 miles NNE of intersection with Castlewood Dr. 164 Comment
  CAS-BOT-BC411410  Dudleya lanceolata Ethel H. Campbell 1921-5-1 2 Orange Laguna Beach Comment
  RSA83330  Dudleya lanceolata F. W. Peirson 1924-6-1 4675 Orange Santa Ana River. 122 Comment
  RSA542535  Dudleya multicaulis Fred M. Roberts, K. G. Marsh, G. A. Marsh 1988-4-26 3943 Orange San Joaquin Hills: Pelican Hill, 0.6 km SE summit. 172 Comment
  RSA542640  Dudleya multicaulis Fred M. Roberts, Kathy Keane 1988-5-25 3994 Orange Rancho Mission Veijo: Lower Canada Chiquita, 2.0km SSE Medium Rancho Survey Marker. 91 Comment
  UC2059978  Dudleya multicaulis K. Nakai 1981-6-4 774 Orange 0.3 mi E of Laguna Canyon Road on El Toro Road. Comment
  UC536908  Dudleya multicaulis Lawrence M. Booth 1932-5-18 1054 Orange Newport Bay Comment
  RSA397822  Dudleya pulverulenta M. B. Dunkle 1934-6-18 3980 Orange San Juan Canyon Comment
  RSA757121  Dudleya pulverulenta A. C. Sanders, Fred M. Roberts, Jutta Burger 2009-10-21 37192 Orange Lomas de Santiago, lower Hangmans Tree Canyon. 379 Comment
  CAS-BOT-BC417040  Dudleya pulverulenta John Thomas Howell 1927-7-26 2840 Orange SE fork of Claymine Canyon, N. Santa Ana Mts. 304 Comment
  RSA0062957  Dudleya pulverulenta subsp. pulverulenta Fred M. Roberts 2008-7-10 7076 Orange Dana Point: Dana Point Headlands, CNLM Preserve, near Strands Road Gate, 0.8km WNW Marine Institute, Dana Point Harbor. 65 Comment
  UC1015432  Dudleya pulverulenta subsp. pulverulenta Jack Whitehead 1946-6-12 396 Orange Dana Point Comment
  UCR174020  Dudleya viscida A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33053 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
  CAS-BOT-BC197174  Echinochloa crus-galli Ira L. Wiggins 1965-9-26 20254 Orange In Carbon Canyon about 3.5 mi. above its mouth Comment
  RSA21041  Echinochloa crus-galli E. R. Johnson 1938-8-22 9451 Orange Rancho Santa Ana, Santa Ana Canyon; South of Picnic Grounds 122 Comment
  RSA452553  Echinochloa crus-galli Fred M. Roberts 1987-8-19 3586 Orange Santa Ana River: adjacent to Fountain Valley, Harbor Bridge. 13 Comment
  RSA49  Echinochloa crus-galli Thos Howell 1927-10-29 787 Orange Near Cypress Station. 30 Comment
  UC1543182  Echinochloa crus-galli Donald G. Nelson 1935-6-28 341 Orange W. Orange thorpe Ave. sw Fullerton Comment
  UC537283  Echinochloa crus-galli Lawrence M. Booth 1932-7-25 1314 Orange Santa Ana River Channel 2 mi from Ocean; Santa Ana River Channel Comment
  UCR207562  Echinochloa crus-galli 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
  RSA184153  Echinochloa crus-galli I. L. Wiggins 1965-9-26 20262 Orange Fullerton. Comment
  CAS-BOT-BC445606  Echinodorus berteroi R. E. Riefner 2000-8-21 20 -728 Orange Santa Ana Mtns.: Irvine Lake [Santiago Reservoir], first cove east of the dam. 238 Comment
  UCR67010  Echium candicans A. C. Sanders 1990-10-6 10183 Orange Newport Bay, North Star County Beach Area on the SW end of the Bay, c. 2 km inland of Hwy 1. 3 Comment
  SD133156  Echium fastuosum A. C. Sanders 1990-10-6 10183 Orange Newport Bay, North Star County Beach area on the southwest end of the bay, ca. 2 km inland of Highway 1 0 Comment
  RSA151172  Eclipta prostrata Peter H. Raven 1961-10-15 16849 Orange Anaheim: Santa Ana River Bed at Anaheim Street crossing. 61 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
  UC1930109  Ehrharta calycina Scott D. White, Michael Honer 2003-6-12 9542 Orange SOUTHWESTERN SANTA ANA MTS FOOTHILLS: Rancho Mission Viejo. Upper end of Trampas Canyon. Comment
  RSA731651  Ehrharta erecta Fred M. Roberts 2007-10-29 6628 Orange Laguna Beach: Temple Hill, Nyes Place, c.a. 0.2 km S Moulton Meadows Park. 232 Comment
  SBBG128733  Ehrharta erecta R. E. Riefner Jr. 2012-2-1 12 -15 Orange Dana Point Harbor, vicinity of Puerto Pl and Dana Point Harbor Drive; Dana Point 2 Comment
  POM11616  Elatine brachysperma P. A. Munz 1921-4-12 4478 Orange Laguna Beach; 1 mile north of Laguna on bluff near clubhouse. 61 Comment
  CAS-BOT-BC113330  Eleocharis montevidensis Helen D. Geis 1902-4-1 507 Orange Santa Ana 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
  RSA750923  Eleocharis montevidensis A. C. Sanders, Fred M. Roberts 2008-7-3 35701 Orange Weir Canyon, along Weir Canyon Rd. 1.2 mi. SSE of Walnut Canyon Reservoir, below Upper Blind Canyon Rd. 212 Comment
  RSA789589  Eleocharis montevidensis var. parishii Robert F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49633 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs Comment
  UCR191242  Elymus condensatus A. C. Sanders 2008-4-29 35137 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, western end of Loma Ridge on road to sheriff's training facility, c. 1.5 mi. SW of Santiago Reservoir 335 Comment
  SEINET10897340  Elymus condensatus Frank W. Gould 1944-6-25 Gould 2365 Orange Santa Ana Canyon, on railroad siding about 5 miles west of former site of Santa Ana Botanical Garden. Comment
  RSA591752  Elymus glaucus E. W. Lathrop 1966-4-18 6172 Orange 4 mi NE of Lake Irvine, Black Star Canyon, Cleveland National Forest, Trabuco District. Comment
  RSA0011627  Elymus glaucus Rankin s.n. Orange Silverado Comment
  POM365352  Elymus glaucus subsp. glaucus H. L. Bauer 1925-4-20 s.n. Orange Trabuco Canyon., [33 deg 40'05N, 117 deg 33'45W] Comment
  CDA22471  Emex spinosa Ball 1933-4-21 Orange Lemon Grove. 0 Comment
  RSA539385  Emmenanthe penduliflora Fred M. Roberts, Carol A. Roberts 1988-6-10 4093 Orange Santa Ana Mtns: Main Divede Truck Trail, Modjeska Peak, 1.1 km SW summit. 465 Comment
  UCR191237  Emmenanthe penduliflora A. C. Sanders, Fred M. Roberts 2008-4-22 34987 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hicks Canyon haul road, just above Irvine Ranch gate and road to cement plant, c. 1 mile NE of Rattlesnake Reservoir 244 Comment
  CAS-BOT-BC131231  Encelia californica R. K. Brummitt 1998-5-23 19990 Orange Newport Beach, by marina 10 Comment
  LA103538  Encelia californica Barry A. Prigge; 1983-12-17 5518 Orange Santa Ana Marsh and adjacent lowlands, southeasternmost part of oil field just N of Pacific Coast Highway between remnant Santa Ana River channel and dirt road 1 Comment
  POM183951  Encelia californica P. A. Munz 1932-3-29 12185 Orange Costa Mesa. Comment
  RSA734683  Encelia californica A. C. Sanders, Fred M. Roberts 2008-5-6 35216 Orange Lomas de Santiago, lower Hicks Canyon near Irvine Ranch gate and road junction to cement plant 180 Comment
  UCR230243  Encelia californica Dick Newell, Don Millar 2011-3-15 082 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Agua Chinon Wash 219 Comment
  UCR73134  Encelia californica Scott D. White 1992-9-23 852 Orange Vicinity of Olinda, near city of Brea, immediately north of Carbon Canyon Road and east of Placentia Ave.; c. 1 mi. (airline) SSE of Tonner Canyon 183 Comment
  UCR197698  Epilobium canum A. C. Sanders, Fred M. Roberts 2008-9-18 36084 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge 330 Comment
  CAS-BOT-BC166349  Epilobium canum subsp. canum John Thomas Howell 1927-7-28 2868 Orange Hills on n. side of Santa Ana [Canon] Canyon 182 Comment
  RSA162770  Epilobium canum subsp. canum J. D. Olmsted 1959-8-26 830 Orange 100 yards northeast of center of Hidden Ranch by pump along Black Star Canyon Road. N end of Santa Ana Mountains 671 Comment
  LA206111  Epilobium canum subsp. latifolium W. E. Pequegnat; August 1937 7 Orange Santa Ana Mountains, Santiago Peak, 8 mi. S of Corona Comment
  UCR193826  Epilobium ciliatum A. C. Sanders, Fred M. Roberts 2008-7-16 35838 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Dripping Springs off Limestone Canyon, c. 7.5 mi. ESE of Tustin 391 Comment
  UCR15896  Epipactis gigantea Steve Boyd 1978-4-26 780426- 08 Orange Peninsular Range; Santa Ana Mtns., Hwy 74, 1.3 mi west of the Riverside/Orange Co. line Comment
  UCR174229  Equisetum arvense A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33038 Orange Peninsular Range; Santa Ana Mtns., San Juan Canyon, from Lower San Juan Picnic Area to c. 1 mile downstream, parallel to Hwy 74 and near Riverside Co. line 396 Comment
  RSA699857  Equisetum hyemale var. affine R. H. McArthur 1934-3-1 s.n. Orange Santa Ana River at 1st Street Comment
  RSA450868  Equisetum laevigatum Gordon Marsh 1977-11-21 s.n. Orange Santa Ana Mountains: S side of Ortega Hwy, 1.2 mi E of San Juan Guard Station, road marker # 107. Comment
  CAS-BOT-BC204438  Eragrostis cilianensis Helen D. Geis 1902-1-1 549 Orange Unspecified 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
  CAS-BOT-BC284066  Eragrostis pectinacea var. 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
  UC1543073  Eremocarpus setiger Donald G. Nelson 1935-6-27 330 Orange on bluffs facing ocean beaches s Corona del Mar (s of mouth of Newport Bay) Comment
  RSA436021  Eremocarpus setiger F. R. Fosberg 1931-6-21 S- 5081 Orange Lower Santiago Canyon. Comment
  SEINET7909394  Eriastrum eremicum G. A. Wojciechowski 1967-1 Orange San Juan Capistrano 610 Comment
  UCR192738  Eriastrum sapphirinum A. C. Sanders, Fred M. Roberts 2008-5-6 35222 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hicks Canyon, just above tollway (Hwy 241) crossing on Irvine Haul Rd., near debris basin 216 Comment
  RSA0122939  Eriastrum sapphirinum subsp. dasyanthum A. C. Sanders, Fred M. Roberts 2008-5-6 35222 Orange Lomas de Santiago, lower Hicks Canyon, just above tollway (Hwy 241) crossing on Irvine Haul Rd., near debris basin. 216 Comment
  RSA0122938  Eriastrum sapphirinum subsp. dasyanthum E. W. Lathrop 1974-6-27 7419 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  RSA741718  Ericameria cuneata var. cuneata R. E. Riefner 2007-6-29 07 -285 Orange Irvine Ranch Reserve, Fremont Canyon Conservation Easement, E fork Fremont Canyon, Black Star SCE Rd. 613 Comment
  SD28142  Ericameria pachylepis Carl B. Wolf 1931-10-30 2943 Orange Rancho Santa Ana. 206 Comment
  RSA0054858  Ericameria palmeri Keith E. Hoffmaster 1933-10-15 100 Orange Santa Ana mts. Comment
  CAS-BOT-BC299501  Ericameria palmeri var. pachylepis Carl B. Wolf 1931-10-30 2708 Orange Rancho Santa Ana Botanical Garden 207 Comment
  OBI45880  Ericameria palmeri var. pachylepis B. Pitzer, D. Hawks 1986-10-21 345 Orange Lomas de Santiago, ca. 10 mi E of Santa Ana, in hills N and E of south Coast Gun Club on Jeffrey Rd in Hicks Canyon 183 Comment
  RSA151083  Ericameria palmeri var. pachylepis Peter H. Raven 1961-10-15 16854 Orange Santa Ana Canyon just W of Hwy 55, at W end of Peralta Hills 137 Comment
  RSA7387  Ericameria parishii C. B. Wolf 1933-8-24 5407 Orange Main divide motorway S of Beaford Peak, Santa Ana Mts 1067 Comment
  RSA0014994  Erigeron foliosus var. foliosus Fred M. Roberts 2008-5-14 6964 Orange Lomas de Santiago: Loma Ridge, upper Bee Flat Canyon below Loma Ridge Rd., 1.3 km N Bee Peak and 5.4 km NW Bolero Lookout, Irvine Ranch Conservancy. 381 Comment
  UCR215289  Erigeron foliosus var. foliosus Fred M. Roberts, D. E. Bramlet 2008-5-13 6956 Orange Santa Ana Mountains, upper Weir Canyon, central fork, 3.5 km NE of Robbers Peak 369 Comment
  IRVC9107  Erigeron foliosus var. stenophyllus R. Seibel 1966-5-18 132 Orange Old Rancho Santa Ana Botanical Garden at end of Orangethorpe Ave. Chino Hills Comment
  CAS-BOT-BC402191  Eriodictyon crassifolium R. F. Thorne; C. W. Tilforth; E. W. Lathrop 1977-4-27 49682 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. 457 Comment
  UC171023  Eriodictyon crassifolium H. M. Hall 1913-5-28 9402 Orange Santiago Canyon Comment
  UCSB47628  Eriodictyon crassifolium Roberts, Jr., Fred 1980-5-3 Orange Santa Ana Mtns.; Main Divide Truck Trail, 1.1 km. SE Blue Jay Campground; 2.6 km. WSW El Cariso Guard Station 902 Comment
  UCSB57032  Eriodictyon parryi Roberts, Jr., Fred 1985-7-26 Orange Santa Ana Mtns.; Main Divide Truck Trail near Los Pinos saddle, 1.5 km. NE Los Pinos Peak, UTM 3725850m N, 457400m E 1257 Comment
Read comments
Feb 22 2019
  POM18124  Eriogonum elongatum P. A. Munz 1923-9-7 7740 Orange Santiago Peak in Santa Ana Mountains. 1707 Comment
  UCR45132  Eriogonum elongatum B. G. Pitzer, L. F. LaPre 1986-10-20 s.n. Orange Santa Ana Mtns, Summit of Hicks Canyon on a private road (continuation of Jeffrey Road), c. 2.4 mi. above the gun club 274 Comment
  POM122566  Eriogonum fasciculatum Marcus E. Jones 1924-8-26 s.n. Orange Newport. Comment
  RSA649079  Eriogonum fasciculatum subsp. fasciculatum Karl Price 1988-4-28 10 Orange An unnamed side canyon within Hot Springs Canyon. It is on Hot Springs Canyon Rd., 0.75 mi. North of Ortega Hwy. (74), 12.6 mi. East of San Juan Capistrano. 305 Comment
  SEINET3386503 Image available Eriogonum fasciculatum var. fasciculatum Joseph Ewan 1932-7-28 7705 Orange Corona Del Mar Comment
  UC520304  Eriogonum fasciculatum var. fasciculatum Joseph Andorfer Ewan 1932-7-28 7705 Orange Corona del mar Comment
  SEINET6418403  Eriogonum fasciculatum var. fasciculatum Lott, Velasco, Pinkava 1966-8-22 2557 Orange 1/2 miles south of Dana Point Comment
  CAS-BOT-BC249947  Eriogonum fasciculatum var. foliolosum John Thomas Howell 1927-7-24 2836 Orange Near entrance to Claymine Canon [Canyon], Santa Ana Canon [Canyon] 152 Comment
  HSC17271  Eriogonum fasciculatum var. foliolosum C. L. Hitchcock, C. V. Muhlick 1964-3-17 23062 Orange 8 mi. E of Yorba Linda, Santa Ana Canyon. Comment
  UC1393288  Eriogonum fasciculatum var. foliolosum R. J. Barr 1967-5-11 67 -166 Orange Roadside e El Toro; Santa Ana Mountains 182 Comment
  UCSB41761  Eriogonum fasciculatum var. foliolosum Walker, Richard 1966-5-15 Orange On south road embankment of Esperanza Ave. about 3 mi. east of Imperial Hwy. east of state landmark of Yorba Hacienda Site. 30 Comment
  UC718407  Eriogonum nudum var. pauciflorum Carl B. Wolf 1933-8-24 5400 Orange summit of Santiago Pk. Santa Ana Mts., Santiago Pk. 1731 Comment
  CAS-BOT-BC257875  Eriogonum parvifolium David D. Keck 1932-9-30 1904 Orange 2 mi. W. of Laguna Beach Comment
  RSA542469  Eriogonum parvifolium Fred M. Roberts 1988-10-12 4160 Orange San Clemente State Park: ca. 0.3km SE end of Ave. Califia along Santa Fe RR. 3 Comment
  RSA716664  Eriogonum parvifolium Fred M. Roberts 2004-7-10 6073 Orange Laguna Beach: Crescent Bay, at base of Twin Points. 3 Comment
  UCR207545  Eriogonum parvifolium O. F. Clarke, Roger E. Reinke 2004-11-14 s.n. Orange South Coast, Newport Back Bay 3 Comment
  UCSB52923  Eriogonum parvifolium Roberts, Fred 1983-3-10 Orange Dana Point Headlands: south of Dana Strand Rd; 0.8km W Dana Point Harbor; 1.0km SW Richard Henry Dana School 66 Comment
  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-BC297332  Eriophyllum confertiflorum Helen D. Geis 1902-12-1 s.n. Orange Santiago Creek Comment
  IRVC26745  Eriophyllum confertiflorum Mark A. Elvin 2004-6-18 3521 Orange UCI Arboretum Southern Coastal 15 Comment
  IRVC15665  Eriophyllum confertiflorum var. confertiflorum A. S. Boughey, P. Pembrook 1965-6-18 1018 Orange Los Trancos Canyon at bottom, ; chaparral. San Joaquin Hills Comment
  UC507177  Eriophyllum confertiflorum var. confertiflorum L. M. Booth 1932-5-12 1042 Orange Newport Bay Comment
  RSA682752  Erodium botrys Scott D. White, Amanda Duchardt 2003-3-27 8846 Orange Santa Ana Mountain Foothills: Canyon bottom and west facing slopes above Canada Gobernadora. 91 Comment
  RSA748805  Erodium botrys G. Gust, L. Nye 2005-3-12 566 Orange Cleveland National Forest, on Hwy 74 ca. 0.5 m W of county boundary with Riverside at a pullout. 401 Comment
  LA210273  Erodium botrys E. R. Johnson; 1935-3-1 6293 Orange 1 mi W of Atwood, S side of RR 91 Comment
  RSA12932  Erodium botrys E. R. Johnson 1935-4-8 6322 Orange 1 mile west of Atwood on South side of Railroad. Alt 300ft. Orange County Comment
  UCSB52457  Erodium botrys Fritzke, Sue; Roberts, Fred 1982-4-3 Orange Dana Point; hills; 1.0km N Dana Hills High School; 1.9km W Marco Forster Junior High School 30 Comment
  HSC8470  Erodium cicutarium C. L. Hitchcock 1966-3-15 24137 Orange 1/2 mi. E of Brea Comment
  RSA696383  Erodium cicutarium Keith E. Hoffmaster 1927-2-12 s.n. Orange Santa Ana. 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
  UCR188899  Erythrina caffra Robert DeRuff 2007-10-24 s.n. Orange Southern Coast, Newport Beach, Upper Newport Back Bay. Back Bay Drive, c. 0.3 km E of the junction with Eastbluff Drive 6 Comment
  UCR192999  Eschscholzia californica A. C. Sanders, T. B. Salvato 2008-5-13 35379 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Canyon above (S of) mouth of Hangman Tree Canyon, just below Modjeska Canyon confluence 366 Comment
  UCSB39756  Eschscholzia californica Levine, N. 1977-5-1 Orange Intersection of Malverne and Meadowbrook Way on south side of Malverne, Buena Park 30 Comment
  RSA66271  Eschscholzia californica var. peninsularis F. W. Peirson 1923-5-6 3506 Orange Trail to Santiago Peak, Santa Ana Ms., from Trabuco Canyon. 1067 Comment
  CDA21564  Eucalyptus camaldulensis Mark A. Elvin, D. G. Kelch 2006-12-9 5316 Orange Southern Coastal; Irvine; San Diego Creek, edge of San Joaquin Marsh, beside University Drive, between Campus Drive and Highway 73. Comment
  RSA0012602  Eucalyptus globulus Fred M. Roberts, Karlin G. Marsh 1988-4-25 3928 Orange San Joaquin Hills: Irvine coast, ca 1.3 km SW Pelican Hill. 43 Comment
  UCR50904  Eucalyptus tereticornis Dave Goodward 1987-4-16 4 Orange Irvine Ranch, Boy Scout Camp in Peters Canyon, east of Tustin and c. 1 mi NE of the Irvine Blvd/Myford Road intersection 122 Comment
  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
  JEPS1726  Eucrypta chrysanthemifolia var. chrysanthemifolia Alice King 1908-1 Orange Anaheim Comment
  RSA683068  Eucrypta chrysanthemifolia var. chrysanthemifolia Fred M. Roberts 2003-3-19 5603 Orange Donna O Neill Land Conservancy: Ridges west of Cristianitos Cyn., 1,750m NNW Sycamore gate and 315m W Cristianitos Rd. (Canada Gobernadora) 192 Comment
  IRVC25150  Euphorbia albomarginata Fred M. Roberts 1986-9-3 3134 Orange adjacent to Anaheim, between Yorba Linda Regional Park and Imperial Hwy, Santa Ana River 88 Comment
  RSA704429  Euphorbia albomarginata Fred M. Roberts, David E. Bramlet 2004-7-30 6086 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, Cristianitos Cyn. along Cristianitos Ck., 1.1 km SSW Gato Gate and 0.32km W Cristianitos Road. 73 Comment
  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
  CLARK-A1528-5001  Euphorbia maculata John C. Roos 1937-5-21 2066 Orange Orange Comment
  IRVC25153  Euphorbia maculata Fred M. Roberts 1986-9-3 3133 Orange adjacent to Anaheim, between Yorba Linda Regional Park and Imperial Hwy, Santa Ana River 88 Comment
  UCR192726  Euphorbia maculata A. C. Sanders, Fred M. Roberts 2008-5-6 35212 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hicks Canyon near Irvine Ranch gate and road junction to cement plant 180 Comment
  CLARK-A1528-2702  Euphorbia misera John C. Roos 1937-9-1 2548 Orange South Laguna Comment
  RSA70613  Euphorbia misera F. W. Peirson 1919-11-8 2041 Orange South of Arch Beach, near Laguna Beach Comment
  SD211597  Euphorbia misera R. E. Riefner Jr. 2008-3-24 08 62 Orange City of Dana Point, Dana Point Harbor, along Dana Point Harbor Drive at Island Way. USGS 7.5' Quad: West Basin, Dana Point 11 Comment
  UCD170387  Euphorbia misera R. E. Riefner Jr. 2012-12-5 12- 587 Orange City of Dana Point, Dana Point Harbor, Dana Harbor Drive near Cove Road. 8 Comment
  UCD170887  Euphorbia misera R. E. Riefner Jr. 2013-1-16 13 -16 Orange South Coast, city of Newport Beach, vicinity of Poppy Ave. and Ocean Blvd., coastal bluff at Little Corona Beach. 3 Comment
  SFV16198  Euphorbia peplus R. K. Stachelek, B. Anderson 1995-3-23 48 Orange Newport Beach, Upper Newport Bay. Freshwater marsh adjacent to Jamboree Road. Comment
  UCD142463  Euphorbia peplus Ronni Stachelek; Bob Anderson 1995-3-23 48 Orange Newport Beach; Upper Newport Bay. Adjacent to Jamboree Rd. Comment
  UCD142472  Euphorbia peplus R. Townsend 1939-12-28 152 Orange Yorba Linda. Comment
  RSA734349  Euphorbia polycarpa A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34642 Orange Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 396 Comment
  UCR44896  Euphorbia serpens B. G. Pitzer, L. F. LaPre 1986-10-20 0315 Orange City of Irvine, Drainage channel near intersection of Irvine Blvd. and Sand Canyon Avenue. 91 Comment
  RSA696043  Felicia amelloides Anonymous 1933-10-13 s.n. Orange Santa Ana Comment
  UCR207527  Festuca microstachys O. F. Clarke 2006-5-6 s.n. Orange Peninsular Range; Santa Ana Mtns., Coal Canyon 305 Comment
  UCR191422  Festuca myuros A. C. Sanders, Fred M. Roberts 2008-4-8 34772 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, SSE of Santiago Reservoir on Harding Truck Trail at Dripping Springs Loop, above Limestone Canyon 495 Comment
  CAS-BOT-BC474740  Ficus carica R. E. Riefner, Jr. 2015-8-29 15 -370 Orange City of Rancho Santa Margarita, Trabuco Marketplace, Rancho Santa Margarita Blvd. at Plano Trabuco 363 Comment
  CDA23120  Ficus carica Mark A. Elvin, D. G. Kelch 2006-12-9 5315 Orange Southern Coastal; Irvine; San Diego Creek, edge of San Joaquin Marsh, beside University Drive, between Campus Drive and Highway 73. Comment
  RSA542485  Ficus carica Fred M. Roberts, William L. Smith 1988-7-30 4127 Orange San Juan Capistrano: Horno creek, Marbella country club, just east of Rancho Viejo road.. 0.8 km NE Mission San Juan Capistrano. 43 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-BC474737  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
  CAS-BOT-BC502071  Ficus microcarpa R. E. Riefner, Jr. 2013-7-11 13 -139 Orange City of Laguna Beach, Heisler Park, near Recreation Point, SW of Cliff Cr. and Myrtle St. 7 Comment
  RSA0116290  Ficus microcarpa R. E. Riefner Jr. 2014-7-14 14 -169 Orange City of Newport Beach, N side of Pacific Coast Highway at Riverside Ave. 6 Comment
  RSA0116293  Ficus microcarpa R. E. Riefner Jr. 2008-10-22 08 -312 Orange City of Laguna Beach, vicinity of West St and Pacific Coast Hwy. 8 Comment
  CAS-BOT-BC474735  Ficus rubiginosa R. E. Riefner, Jr. 2015-8-27 15 -356 Orange City of Laguna Beach, S side of Beach St. E of Broadway Ave (Hwy 133) 7 Comment
  SD175832  Ficus rubiginosa D. G. Kelch 2006-12-9 06 565 b Orange Irvine, University Drive along tidal creek just east of I-73 9 Comment
  UCR114389  Filago arizonica D. E. Bramlet 2000-4-17 2986 Orange Santa Ana Mtns. Region, 1.9 km west of Blind Canyon and 366 m north of Irvine Park, 31 m SW of the MWD access road 268 Comment
  RSA759156  Foeniculum vulgare A. C. Sanders, Fred M. Roberts 2008-6-17 35458 Orange Lomas de Santiago, Hicks Canyon Haul Road 0.5 mi. east of the Foothill Transportation Corridor 244 Comment
  POM201618  Foeniculum vulgare L. M. Booth 1932-8-5 1346 Orange West Newport Beach. Comment
  CAS-BOT-BC63075  Frangula californica subsp. californica Reid Moran 1975-7-18 22596 Orange Common in the bottom of upper Trabuco Canyon, Santa Ana Mountains. 725 Comment
  RSA303542  Frankenia grandifolia Jim R. Shevock 1972-9-27 2289 Orange Newport Back Bay. 2 Comment
  RSA391397  Frankenia grandifolia Ella M. Kennedy 1923-5-14 s.n. Orange Laguna Beach. Comment
  CAS-BOT-BC223807  Frankenia salina Carl B. Wolf 1932-6-28 3784 Orange Bryant Ranch, edge of field on Bryant Ave. 91 Comment
  IRVC1372  Frankenia salina Dorleene Van Gorden 1965-5-9 s.n. Orange Silverado Canyon. Peninsular Ranges, Santa Ana Mountains Comment
  IRVC8591  Frankenia salina Paul Fishman, Hayden R. Williams 1969-9-23 980 Orange Upper Newport Bay: below East Bluff. Southern Coastal 2 Comment
  LA205391  Frankenia salina Lawrence M. Booth; 1932-7-27 1324 Orange Newport Beach, Corona del Mar Comment
  UCR89689  Frasera parryi Don Pendleton 1992-5-16 92- 18 Orange Santa Ana Mtns., Cleveland National Forest, NW of El Cariso, on trails near Falcon Group Camp 823 Comment
  RSA113855  Fraxinus dipetala E. K. Balls 1956-3-26 21464 Orange 0.5 miles below Silverado Motorway, W slope of Santa Ana Mts. 640 Comment
  CDA9402  Fraxinus uhdei D. G. Kelch 2006-12-9 6 .535 Orange Along Newport Back Bay Dr. in side canyon. Comment
  CDA9409  Fraxinus uhdei D. G. Kelch 2006-12-9 6 .569 Orange Irvine. University Dr along tidal creek just E of I-73. Comment
  RSA652040  Fremontodendron californicum L. M. Anderson 1948-2-11 s.n. Orange On property at Rt 1, Box 239A, Santa Ana 183 Comment
Read comments
Oct 28 2014
  UCR192218  Fritillaria biflora A. C. Sanders, Fred M. Roberts 2008-5-6 35270 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, upper Limestone Canyon, 2.9 mi. NNW of El Toro 379 Comment
  RSA696600  Fumaria officinalis Keith E. Hoffmaster 1933-3-15 410 Orange near Santa Ana. Comment
  OBI42766  Fumaria parviflora Larry Summers 1983-4-18 s.n. Orange Tustin, Irvine Ranch, Field 120 at the intersection of Bryan and Culver. At the edge of a tomato field 46 Comment
  CHSC106536  Funastrum cynanchoides var. hartwegii Robt. Allen; Alison Linden 2007-5-17 Orange Irvine, Turtle Rock community, Chaparral Park, due N of Turtle Rock Dr, due E of Highgate terrace. UTM Zone 11S; 3722013N 0424400E. 136 Comment
  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
  RSA682913  Galium angustifolium Scott D. White, Amanda Duchardt 2003-5-1 9163 Orange Santa Ana Mountain Foothills: Slopes above west side of Trampas Canyon. 107 Comment
  RSA758894  Galium angustifolium A. C. Sanders, Fred M. Roberts 2008-4-22 35005 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
  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
  SD119373  Galium angustifolium subsp. angustifolium Reid Moran 1977-6-13 24232 Orange north slope, Willow Canyon, tributary of Laguna Canyon 124 Comment
  POM256705  Galium angustifolium subsp. angustifolium W. Pequegnat 1940-6-15 s.n. Orange Santa Ana Mountains: Modjeska Flat. 1372 Comment
  RSA700186  Galium aparine Minor Warne 1934-4-28 s.n. Orange Ladd Canyon-Santa Ana Mts. PR8. Comment
  UCSC001312  Galium aparine Peter Kamb 1948-6-19 1091 Orange Holy Jim Canyon, Santa Ana Mts. 610 Comment
  RSA67135  Galium nuttallii F. W. Peirson 1924-5-31 4665 Orange 5 miles southeast of Laguna Beach. Comment
  RSA542398  Galium parisiense Fred M. Roberts, K. Keane 1988-5-26 4013 Orange Rancho Mission Viejo: tributary to Trampas canyon, along Christianitos rd., 2.4 km ESE Viejo Survey mark. 128 Comment
  POM4414  Galium porrigens Philip A. Munz 1918-5-4 2215 Orange Laguna. Comment
  RSA700908  Galium siccatum Unspecified s.n. Orange Black Star Canyon Comment
  UCR241668  Garrya flavescens Dick Newell, Judy Booth 2013-5-19 329 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest; Maple Springs Road, 2 miles north of Modjeska Peak 855 Comment
  RSA5344  Garrya flavescens var. pallida B. D. Stark 1933-1-4 4497 Orange Bottom of Claymine Canyon. No. end of Santa Ana Mts. 305 Comment
  RSA750001  Gastridium phleoides A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35321 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
  UCR191010  Gastridium ventricosum A. C. Sanders, Fred M. Roberts 2008-4-22 35017 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Limestone Canyon, c. 2 miles SW of Silverado 396 Comment
  CDA20329  Gaura drummondii T. Maloney 2005-5-5 PDR 1367689 Orange Fullerton. Craig Regional Park. 3300 N. State College Blvd. 0 Comment
  RSA39481  Gaura parviflora E. L. Paddock 1943-6-8 12730 Orange Whittier Road 1/4 mile west of Puente Street, Brea. Comment
  SEINET10728265  Gazania David B. Dunn 1971-8-13 Dunn 18117 Orange Cultivated plants vicinity of Laguna Beach. Comment
  UCR177952  Geranium carolinianum Scott D. White, Brian Leatherman 1997-5-6 5037 Orange Peninsular Ranges; Santa Ana Mtns., Lomas de Santiago; Santiago Canyon area; unnamed tributary to Santiago Creek flowing from the SW, directly west of Pancho Canyon 396 Comment
  RSA685935  Geranium dissectum Fred M. Roberts, D. E. Bramlet 2003-3-27 5619 Orange Rancho Mission Viejo: Donna O Neill Land Conservancy, west slopes of Chistianitos Cyn., 0.69km N Sycamore Gate, 0.96km W Chistianitos Rd. 122 Comment
  RSA588801  Geranium dissectum Fred M. Roberts 1990-5-7 4597 Orange Rancho Mission Viejo: Ridge south of Blind Canyon, TRW Lease Holding, 4.9 km NE Clemente Survey Marker. 152 Comment
  UC2014872  Geranium incanum var. multifidum R. E. Riefner Jr. 2011-7-1 11 -78 Orange City of Laguna Beach, South Crescent Bay, vicinity of Circle Drive and Island Way. Comment
  RSA749296  Gilia achilleifolia Fred M. Roberts, Linda Farley 2008-3-28 6816 Orange Santa Ana Mtns.: Upper Weir Cyn., east fork along ridge just west of SR241, 3.4 km E Robber's Peak, Irvine Land Conservancy. 437 Comment
  HSC16994  Gilia angelensis J. W. Johnson 1961-3-29 Orange Newport Beach, slope overlooking Upper Newport Bay. Comment
  RSA470266  Gilia capitata subsp. abrotanifolia M. B. Dunkle 1933-5-30 3579 Orange Santa Ana Canyon. Comment
  RSA749432  Gilia capitata subsp. abrotanifolia Fred M. Roberts 2008-4-14 6896 Orange Santa Ana Mtns.: Upper Weir Cyn., east fork, 3.1 km E Robbers Peak, Irvine Ranch Conservancy. 453 Comment
  RSA698350  Gilia multicaulis R. H. McArthur s.n. Orange Gypsum Canyon. Comment
  RSA552949  Githopsis diffusa subsp. candida Fred M. Roberts 1989-4-20 4293 Orange Santa Ana Mtns.: upper Lion Canyon along San Juan Trail just south of Blue Jay Campground, 2.5km SE Los Pinos Peak. 980 Comment
  RSA587866  Githopsis diffusa subsp. candida Fred M. Roberts 1990-5-22 4634 Orange Santa Ana Mountains; Upper Hot Springs canyon, just west of Falcon Group Camp, 1.9km ESE Los Pinos Peak. 994 Comment
  UCSB48124  Glebionis coronaria Roberts, Fred 1981-4-11 Orange Highway 74: 5.2km E San Juan Capistrano, near crossing of San Juan Creek 52 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
  UCR217284  Gnaphalium canescens subsp. microcephalum Mark A. Elvin, Laura Soloro, Adam Sriro 2003-1-10 2217 Orange Peninsular Range; Santa Ana Mtns., c. 1.6 mi. west of Sierra Peak along road to powerlines, near Claymont Clay Mine 457 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
  RSA782059  Gnaphalium luteoalbum Mark A. Elvin 2003-2-23 2312 Orange Irvine, San Joaquin Marsh along the berm of San Diego Creek 3 Comment
  RSA701690  Gnaphalium palustre Fred M. Roberts, David E. Bramlet 2003-6-6 5898 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, west slopes of Cristianitos Canyon, 0.86 km SSW Gato Gate and 0.39 km W of Cristianitos Road. 149 Comment
  UCSB52897  Gnaphalium palustre Roberts, Fred 1983-3-16 Orange Laguna Beach: Sycamore Hills, central ridge, 1.5km NNE jct. El Toro and Laguna Canyon Rds.; 5.5km ESE Signal Peak 175 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
  RSA698230  Godetia bottae Minor Warne 1934-5-19 s.n. Orange Trabuco. Comment
  RSA698233  Godetia epilobioides Minor Warne 1934-4-14 s.n. Orange Laguna Canyon Forks. Comment
  LA203653  Grindelia camporum J. A. Ewan; 1932-7-28 7703 Orange Corona del Mar Comment
  UCR1483  Grindelia camporum B. L. Estes 1960-7-24 s.n. Orange San Clemente, NE corner of Avenida Santa Barbara and Ola Vista. 46 Comment
  UCR37800  Grindelia camporum 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
  RSA17586  Grindelia camporum var. bracteosa C. B. Wolf 1936-7-8 8101 Orange Coast Hwy, Western end of Newport Bay. 9 Comment
  RSA703683  Grindelia camporum var. bracteosa Fred M. Roberts, David E. Bramlet 2004-11-5 6126 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, west slopes of Cristianitos Cyn., 0.79 km N Sycamore Gate and 0.18 km W Cristianitos Road. 146 Comment
  RSA696832  Grindelia robusta Minor Warne 1934-5-10 s.n. Orange Fairview Bluffs. Comment
  LA203641  Gutierrezia californica A. M. Johnson; 1932-4-23 4029 Orange Dry hills N of Orange Comment
  RSA703141  Gutierrezia californica Fred M. Roberts, Art Davenport 2003-9-11 6015 Orange Rancho Mission Viejo: Donna O' Neill Land Conservancy. Cristianitos Cyn., 0.79 km N Sycamore Gate 0.23 km w of Crisianitos Road. 126 Comment
  UCR192102  Gutierrezia californica A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35288 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir 300 Comment
  IRVC26430  Haplopappus canus Mark A. Elvin 2004-2-22 3154 Orange UCI Arboretum Southern Coastal 15 Comment
  RSA0066595  Harpagonella palmeri D. E. Bramlet 2000-4-17 2982 Orange West of Blind Cyn. and North of Irvine Park. The site is 2 km west of Blind Canyon and 305m north of Irvine Park. This locality is 183 m southwest of the MWD access road. 220 Comment
  RSA0066597  Harpagonella palmeri R. E. Riefner Jr. 2000-4-27 20 -391 Orange NCCP North Ranch Policy Plan Area. Along dirt road running S from Baker Cyn. Road to Silverado Road. 335 Comment
  RSA602118  Hedypnois cretica Scott D. White 1997-5-6 5045 Orange Santa Ana Mountains. Santiago Canyon area: Ridgetop road N and W of Bolero Lookout. 427 Comment
  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
  UCR158031  Hedypnois cretica Adrian Wolf 1998-5-15 287 Orange South Coast, Dana Point Headlands, north of Scenic Dr. 67 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
  IRVC14811  Helenium puberulum A. S. Boughey 1968-7-9 395 Orange Santa Ana mtns: upper Santiago Canyon. Peninsular Ranges Comment
  JEPS35550  Helenium puberulum L. M. Booth 1932-7-9 1285 Orange Bolsas Creek Comment
  POM6080  Helenium puberulum D. L. Crawford 1916-7-26 s.n. Orange Aliso Canyon. Comment
  SFV18100  Helianthemum scoparium J. D. Dilley, J. N. Hogue, D. L. Bishop 1998-4-9 257 Orange Santa Ana Mountains. San Juan Canyon at San Juan Hot Springs just inside western border of Cleveland National Forest. 213 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
  JEPS35482  Helianthus annuus W. L. Jepson 1940-10-6 20180 Orange Horseshow Bend Santa Ana Canyon Comment
  IRVC780  Helianthus annuus R. D. Haywood 1965-5-12 Orange Comment
  UCR109773  Helianthus ciliaris R. D. Goeden, Don W. Ricker 1965-7-7 s.n. Orange Laguna Hills, Veeh Ranch, c. 1.5 mi. west of El Toro 91 Comment
  CAS-BOT-BC305658  Helianthus ciliaris E. L. Paddock 1941-8-1 s.n. Orange Graham-Loftus property, 2 miles east of Brea Comment
  POM256708  Helianthus gracilentus W. Pequegnat 1940-6-15 s.n. Orange Holy Jim Trail 1220 Comment
  UCR192093  Helianthus gracilentus A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35293 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir 300 Comment
  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
  POM215121  Hemizonia australis D. D. Keck 1933-9-17 2524 Orange Westminister Comment
  POM202163  Hemizonia fasciculata L. M. Booth 1932-5-12 1038 Orange Newport Bay Comment
  RSA232233  Hemizonia fasciculata James Henrickson 1970-7-25 5069 Orange 2 miles N of Huntington Beach along NE margin of Bolsa Chica Salt March. 0 Comment
  RSA734120  Hemizonia fasciculata A. C. Sanders 2008-4-29 35142 Orange Peninsular Range;Santa Ana Mtns.: Lomas de Santiago, western end of Loma Ridgeon road to sheriff's training facility, c. 1.5 mi. SW of Santiago Reservoir 335 Comment
  UCR131869  Hemizonia fasciculata J. Mallory, V. McCoy 1995-7-3 6454- 104 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
  RSA684401  Hemizonia paniculata Scott D. White, Brian Leatherman 2003-10-30 9847 Orange Foothills; Oso Parkway crossing over Chiquita Canyon. 198 Comment
  NY179278  Hemizonia parryi subsp. australis D. D. Keck 1933-9-29 2537 Orange Seal Beach Comment
  SD40663  Hesperocyparis forbesii Carl B. Wolf 1935-1-2 Orange Santa Ana Mountains, slopes of Sierra Peak, west of Claymine Canyon along road to peak 669 Comment
  CAS-BOT-BC143752  Heteromeles arbutifolia P. Everett; E. R. Johnson 1937-11-30 9380 Orange Santa Ana Mts., Bold Meadow at head of Claymine Canyon on slopes of Sierra Peak 762 Comment
  RSA0072404  Heteromeles arbutifolia Fred M. Roberts, Robert L. Allen 2004-1-16 6020 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, Cristianitos Cyn., 0.56 km SSW Gato Gate and 0.15 km W of Cristianitos Rd. 92 Comment
  RSA658198  Heteromeles arbutifolia T. A. Daubert 1991-5-26 657 Orange Tucker Wildlife Sanctuary, Modjeska Canyon, fire road. Comment
  RSA699265  Heteromeles arbutifolia Unspecified s.n. Orange Maple Avenue School Comment
Read comments
Oct 7 2013
  UC527322  Heteromeles arbutifolia Carl B. Wolf and B. D. Stark 1932-12-19 Orange 0.5 mi from Skyline Drive (on firebreak road to Sierra Peak); Santa Ana Mts. 762 Comment
  UCD113321  Heteromeles arbutifolia K. M. Meyer; A. Townesmith and T. Scott 2007-3-10 3 Orange Cleveland National Forest, 0.5 mi. N. Main Divide Rd./NF3S04, off Hwy. 74. Elsinore Mountains, ridge top. 917 Comment
  UCR100450  Heteromeles arbutifolia B. G. Pitzer 1996-4-30 2781 Orange South Coast, Upper Newport Bay, Calif. Dept. Fish & Game Ecological Reserve, off (W of) Jamboree Road 6 Comment
  UCR102006  Heteromeles arbutifolia B. G. Pitzer 1997-3-25 3041 Orange San Joaquin Hills, Crystal Cove State Park, Pelican Point Area, grassland between Pacific Coast Hwy and the bike trail 30 Comment
  UCR145985  Heteromeles arbutifolia June Latting 1977-1-12 s.n. Orange Chino Hills, Tonner Canyon 213 Comment
  UCR231354  Heteromeles arbutifolia A. C. Sanders, Kent Beaman 2011-9-27 39906 Orange Peninsular Range; Santa Ana Mtns., Maple Springs Truck Trail above Silverado, at major (dry) stream crossing, 3.95 km NNW (347 deg. ) of Santiago Peak 903 Comment
  RSA0072397  Heteromeles arbutifolia Fred M. Roberts 1986-11-5 3204 Orange Santa Ana Mts.: Upper Mabey Canyon near top of Skyline Dr., 2.7 km SE Sierra Peak, NE of Oak Flat. 850 Comment
  SD8916  Heterotheca grandiflora George R. Kleeberger Nov 1875 Orange Santa Ana Valley Comment
  SEINET2073666  Heterotheca grandiflora R. Beal 1980-5-6 Orange Dana Point, above Pacific Ocean, hard-packed sand on top of sand hill. Comment
  UCD133033  Heterotheca grandiflora W. G. Watkins 1936-3-10 s.n. Orange Orange. Comment
  UCR250865  Heterotheca sessiliflora Dick Newell, Don Millar 2014-4-29 368 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Agua Chinon wash 0.5 mi. above lower gate at 241 Toll Rd. 257 Comment
  RSA812  Heterotheca sessiliflora subsp. echioides J. T. Howell 1927-9-24 744 Orange Santa Ana River Bottom, Rancho Santa Ana 152 Comment
  RSA689546  Heterotheca sessiliflora subsp. echioides R. E. Riefner 2000-8-8 20 -715 Orange NCCP North Ranch Policy Plan Area. NE property; E slope of upper Fremont Cyn.; S of Donaldson Ranch area and S of powerline / National Forest boundary. 454 Comment
  CAS-BOT-BC55400  Hirschfeldia incana Ira L. Wiggins 1966-2-19 20456 Orange Carbon Canyon near Orange County Survey bench mark RCE 7872. Comment
  RSA653179  Hirschfeldia incana David Barrios 1991-5-8 39 Orange 1500 ft. Northwest of Fairmont Ave and Quail cir. 365 Comment
  RSA702204  Hirschfeldia incana Fred M. Roberts, David E. Bramlet 2003-6-20 5921 Orange Rancho Mission Viejo: Donna O Neill Land Conservancy, tributary to Christianitos Cyn, along Back Road, 1.48 km WNW Sycamore Gate. 189 Comment
  CAS-BOT-BC207961  Hoffmannseggia glauca Goodwin 1933-7-6 s.n. Orange Unspecified Comment
  RSA0026264  Hoita macrostachya Fred M. Roberts 2013-6-12 7785 Orange Peninsular Ranges: Santa Ana Mtns: Lower Silverado Canyon along Silverado Creek on north side of Silverado Canyon Road, 0.6 kilometers ENE Silverado School and 1.4 kilometers up stream Black Star Road Crossing. 320 Comment
  RSA7325  Hoita macrostachya E. R. Johnson 1933-7-6 5168 Orange 1/2 mile south of Mexican houses, Rancho Santa Ana 122 Comment
  UCR247907  Hoita macrostachya Fred M. Roberts 2013-6-12 7785 Orange Peninsular Ranges, SANTA ANA MTNS.: Lower Silverado Canyon along Silverado Creek on north side of Silverado Canyon Road, 0.6 km ENE Silverado School and 1.4 km up stream Black Star Road crossing. 320 Comment
  IRVC19365  Hoita macrostachya R. L. Allen Jul 1977 s.n. Orange Santa Ana Mountains; [San Juan Canyon], Ortega Hwy, road side 111. Peninsular Ranges Comment
  IRVC18572  Holocarpha virgata Karlin G. Marsh 1980-8-13 Orange S of Trabuco Canyon, Sect. 12, Hinricks Parcel. Santa Ana Mountains Comment
  SEINET6654708  Holocarpha virgata subsp. elongata R. E. Riefner Jr. 2003-10-14 03 -421 Orange San Clemente State Beach, mima mound field in SW corner of park.; 0 27 Comment
  RSA798596  Holodiscus boursieri Robert F. Thorne, E. W. Lathrop 1977-5-18 49749 Orange Santa Ana Mountains: summit of Santiago Peak. 1733 Comment
  POM2592  Holodiscus discolor Philip A. Munz 1918-5-4 2218 Orange Laguna Beach. Comment
  CAS-BOT-BC150006  Holodiscus discolor var. discolor P. C. Everett 1935-6-18 7221 Orange Santa Ana Mts., Summit of Santiago Pk. 1731 Comment
  RSA0027774  Holodiscus discolor var. franciscanus Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49690 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  CAS-BOT-BC285000  Hordeum depressum P. A. Munz 1918-5-5 2192 Orange Laguna Beach Comment
  RSA597730  Hordeum depressum D. E. Bramlet 1996-4-20 2458 Orange Marsh adj. to Upper Newprot Bay, approx. 122m southeast of the end of University Dr. and 15.2m west of the Delhi channel., UTM 37 23 830mN, X 4 18 180m E 1 Comment
  RSA627782  Hordeum depressum Scott D. White 1998-4-9 6268 Orange UCI Campus; North Campus wetlands reserve area; north of San Joaquin Channel and east of MacArthur Blvd. 15 Comment
  RSA0040088  Hordeum depressum Sandra Leatherman 2014-3-18 2014 -2 Orange Santa Ana Mountains region: South Orange County; northeast of Antonio Parkway and Sendero Way; adjacent to the Chiquita Reclamation Plant access road. 76 Comment
  CHSC109697  Hordeum intercedens D. Bramlet 1999-6-11 2808 Orange On slope 76 m east of Cristianitos Creek and 488 m northeast of the intersection of Avenida Pico and Cristianitos Road. UTM 11S 04 47 340mE x 37 02 080mN 79 Comment
  RSA642526  Hordeum intercedens D. E. Bramlet, Sandy Leatherman 1998-5-29 2631 Orange On slope adjacent to a tributary of Segunda Deshecha Canada, approximately 1,600 ft. north of the existing access road (telega Valley Dr.) and 8,500 ft. north of Avenida Pico;, Approximately 7,100 ft. west of Cristianitos Canyon and 1,700 ft. west of Wilson Camp Rd. UTM 11S 04 45 523mE X 37 04 739mN. 201 Comment
  RSA704078  Hordeum intercedens D. E. Bramlet, Fred M. Roberts 2003-5-8 3433 Orange Donna O'Neill Reserve. S-Mid E area of the reserve 91m west of Cristianitos Rd. and 152m south of the E-W Rd. 119 Comment
  UCR150381  Hordeum intercedens D. E. Bramlet 1998-5-25 2627 Orange Coastal Plains & Basins/Los Angeles Basin region, 120 m N of the Newport Beach Library and 61 m west of McArthur Blvd., 914 m south of San Miguel Drive 49 Comment
  RSA627754  Hordeum marinum subsp. gussoneanum Scott D. White 1998-5-31 s.n. Orange UCI Campus; Southwest of Farm School site (now proposed as Student Rec. Ctr.). 24 Comment
  UCR154289  Hordeum murinum Mark A. Elvin 2004-5-2 3405 Orange Southern Coastal, Irvine: San Joaquin Freshwater Marsh, near Campus and University Drives; 1.7 km (air) NNW UC Irvine campus center 3 Comment
  RSA696594  Hordeum murinum Anonymous s.n. Orange High School Campus. Comment
  CAS-BOT-BC289363  Hordeum murinum subsp. glaucum Ira L. Wiggins 1966-2-19 20453 Orange In Carbon Canyon near Orange County Survey bench mark RCE 7872 Comment
  RSA55  Hordeum murinum subsp. leporinum J. T. Howell 1928-3-17 869 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  UCR48545  Hordeum vulgare Jack Easton 1987-4-21 s.n. Orange Southern Coast, Kain property, San Clemente, mouth of Trafalgar Canyon, just behind the beach 30 Comment
  UCSB48126  Hordeum vulgare Roberts, Fred 1981-4-11 Orange Highway 74: 5.2km E San Juan Capistrano, near San Juan Creek crossing 52 Comment
  RSA525  Hydrocotyle umbellata J. T. Howell 1927-7-19 441 Orange Santa Ana River bottom, Rancho Santa Ana [Botanic Garden] 152 Comment
  UCD169465  Hydrocotyle umbellata L. M. Booth Date Unknown 833 Orange Santa Ana Canyon. Comment
  UC1228876  Hydrocotyle verticillata Peter H. Raven 1961-10-15 16858 Orange dyke along rd. to Yorba Linda (just n. of U.S. Hwy. 91) 114 Comment
  CAS-BOT-BC312647  Hymenothrix loomisii 1943-12-1 s.n. Orange Costa Mesa Comment
  RSA749428  Hypochaeris glabra Fred M. Roberts 2008-4-14 6892 Orange Santa Ana Mtns.: Upper Weir Cyn., east fork, 3.4 km E Robbers Peak, Irvine Ranch Conservancy. 433 Comment
  SEINET272171  Hypochaeris glabra G. K. Helmkamp, E. A. Helmkamp 1997-4-24 1659 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
  UC1543205  Hypochaeris glabra Donald G. Nelson 1935-4-14 277 Orange Newport Beach Comment
  UCR100447  Hypochaeris glabra B. G. Pitzer 1996-4-30 2782 Orange South Coast, Upper Newport Bay, Calif. Dept. Fish & Game Ecological Reserve, off (W of) Jamboree Road 6 Comment
  UCR102032  Hypochaeris glabra B. G. Pitzer 1997-3-25 3011 Orange San Joaquin Hills, Crystal Cove State Park, Pelican Point Area, grassland between Pacific Coast Hwy and the bike trail 30 Comment
  UCR190982  Hypochaeris glabra A. C. Sanders, Fred M. Roberts 2008-4-22 34998 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
  UCR220958  Hypochaeris glabra Dick Newell, Don Millar 2010-4-20 15 Orange South Coast Region, top of Serrano Ridge, 1 km west of the Nix Center/Laguna Canyon Rd. 229 Comment
  RSA606376  Hypochaeris glabra Jon E. Keeley 1994-4-5 25275 Orange First year burn, east end of Caspers Park S-7 (Keeley 1994) 215 m. 215 Comment
  RSA562807  Iris germanica Steve Boyd, Timothy S. Ross 1992-5-20 7479 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of the wilderness area in Lucas Canyon along foot trail upstream from edge of old roadgrade to uper homestead (corugated steel building). 351 Comment
  RSA638195  Isocoma menziesii Scott D. White 1998-10-15 7184 Orange Yorba Linda: 1/2 mile south of Telegraph Cyn. Between Ohio St. and Fairmont. Proposed for development. 152 Comment
  RSA167492  Isocoma menziesii var. menziesii R. F. Thorne, Percy C. Everett 1963-9-25 33211 Orange On disturbed bluff top, Dana Point. Comment
  CAS-BOT-BC311675  Isocoma menziesii var. sedoides Helen D. Geis 1902-1-1 545 Orange Laguna Beach Comment
  CAS-BOT-BC311655  Isocoma menziesii var. vernonioides David D. Keck 1932-9-30 1906 Orange Dana Point, near San Juan Capistrano Comment
  CAS-BOT-BC311657  Isocoma menziesii var. vernonioides Ira L. Wiggins 1965-10-27 20305 Orange Along Brea Canyon Road just SW of Los Angeles County line Comment
  CAS-BOT-BC311733  Isocoma menziesii var. vernonioides John Thomas Howell 1927-7-17 2789 Orange One mile north of Laguna Beach 30 Comment
  POM294112  Isocoma menziesii var. vernonioides Lyman Benson 1946-7-8 12105 Orange Corona del Mar. 15 Comment
  UC221420  Isocoma menziesii var. vernonioides F. M. Reed 1917-7-1 3918 Orange bluffs at Laguna Laguna Comment
  RSA91276  Isocoma menziesii var. vernonioides F. W. Peirson 1919-11-8 1254 Orange South of Arch Beach, near Laguna Beach Comment
  RSA697044  Isocoma veneta var. vernonioides Keith E. Hoffmaster 1927-10-9 s.n. Orange Santa Ana. Comment
  UCR237932  Isomeris arborea Mark A. Elvin 2003-2-2 2258 Orange South Coast, San Joaquin Marsh, UCI campus SSE of intersection of Jamboree Blvd. and Campus Dr. 2 Comment
  CAS-BOT-BC324739  Iva axillaris Carl B. Wolf 1932-6-28 3804 Orange Bryant Ranch, edge of field on Bixy Ave. 228 Comment
  UCR220031  Iva hayesiana 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
  UCR239843  Iva hayesiana O. F. Clarke 2004-4-5 s.n. Orange South Coast, Least Tern Reserve, just north of the mouth of the Santa Ana River, Huntington Beach 4 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
  UCR24414  Jepsonia parryi John C. Roos 1936-10-9 2301 Orange Santa Ana Canyon Comment
  UCR93338  Jepsonia parryi G. R. Ballmer 1994-11-16 s.n. Orange Peninsular Range; Santa Ana Mtns., Ortega Hwy in vicinity (W of) of National Forest boundary 250 Comment
  CAS-BOT-BC101917  Juglans californica John Thomas Howell 1927-7-27 2847 Orange Hills on n. side of Santa Ana [Canon] Canyon 152 Comment
  RSA0043360  Juglans californica Fred M. Roberts 2013-8-8 7802 Orange Peninsular Ranges. SANTA ANA MTNS.: Lower Silverado Canyon along Silverado Creek on north side of Silverado Canyon Road, 0.8 km ENE Silverado School and 1.5 km up stream Black Star Road crossing. 325 Comment
  UCSB42416  Juglans californica Romspert, A. 1966-4-26 Orange Carbon Canyon; on hill behind La Vida Hot Springs; East side of slope Comment
Read comments
Jan 27 2015
  POM9756  Juglans californica P. A. Munz 1921-2-26 4682 Orange Brea Canyon. 305 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
  SD245393  Juglans californica R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49613 Orange Santa Ana Mountains: along Ortega Highway (74) about 2.5 miles above San Juan Fire Station. Comment
  RSA542477  Juglans californica var. californica Fred M. Roberts, Karlin Marsh 1988-4-25 3929 Orange San Joaquin Hills: Irvine Coast, 1.1 km SW Pelican Hill. 44 Comment
  UC1618043  Juglans californica var. californica Donald G. Nelson 1935-3-16 168 Orange hills n Fullerton 60 Comment
  UCR246398  Juglans hindsii R. E. Riefner Jr. 2010-9-8 10- 121 Orange South Coast, city of Laguna Beach, Laguna Canyon, c. 0.15 mi south of El Toro Road on east side of Laguna Canyon Road 75 Comment
  RSA0080065  Juglans hindsii R. E. Riefner Jr. 2011-9-10 11 -124 Orange Santa Ana Canyon, I-91 northbound, S side of freeway, located within 100 ft of the Riverside County line. 127 Comment
  RSA795707  Juncus W. R. Ferren 1991-12-3 EPA- 18 Orange Cook Creek, tributary to Aliso Creek, San Juan Capistrano. Comment
  RSA683232  Juncus acutus Scott D. White, Matt Carlton 2003-11-20 9861 Orange Santa Ana Mountain foothills; San Juan Creek in San Juan Capistrano; (Dana Point) 24 Comment
  JEPS66901  Juncus acutus subsp. leopoldii Lawrence M. Booth 1932-5-24 1102 Orange Newport Bay Comment
  RSA750920  Juncus balticus A. C. Sanders, Fred M. Roberts 2008-7-3 35706 Orange Weir Canyon, along Weir Canyon Rd. 1.2 mi. SSE of Walnut Canyon Reservoir, below Upper Blind Canyon Rd. 212 Comment
  UC537280  Juncus balticus L. M. Booth 1932-12-26 1381 Orange Bolsas Marsh, near highway Bolsas Marsh Comment
  UCR193797  Juncus balticus A. C. Sanders, Fred M. Roberts 2008-7-3 35706 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
  POM155895  Juncus bufonius C. B. Bradshaw s.n. Orange Laguna region. Comment
  RSA734913  Juncus bufonius A. C. Sanders, Mitch Provance 2008-5-20 34520 Orange Lomas de Santiago area, Santiago Creek Canyon, c. 3/4 mile below Modjeska Canyon confluence 345 Comment
  UCR158029  Juncus bufonius Adrian Wolf 1998-5-15 292 Orange South Coast, Dana Point Headlands, north of Scenic Dr. 67 Comment
  RSA734632  Juncus bufonius var. congestus A. C. Sanders, T. B. Salvato 2008-5-13 35381 Orange Lomas de Santiago, Santiago Canyon above (S of) mouth of Hangman Tree Canyon, just below Modjeska Canyon confluence 366 Comment
  RSA0014066  Juncus effusus subsp. austrocalifornicus Fred M. Roberts, R. E. Riefner 2010-5-30 7022 Orange Lomas de Santiago: Loma Ridge, Hanging Man s Tree Cyn., along Hanging Man s Tree Cyn. Rd., c.a. 0.4km W Santiago Cyn. Rd., and 1.2 km N Bolero Lookout. 372 Comment
  RSA0014071  Juncus macrophyllus Fred M. Roberts, R. E. Riefner 2010-5-30 7024 Orange Lomas de Santiago: Loma Ridge, Hanging Man s Tree Cyn., along Hanging Man s Tree Cyn. Rd., c.a. 0.4km W Santiago Cyn. Rd., and 1.2 km N Bolero Lookout. 372 Comment
  SEINET3880056  Juncus macrophyllus A. C. Sanders, Fred M. Roberts 2008-7-16 35859 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago, upper Hangmans Tree Canyon (El Toro 7.5' Q).; 0 395 Comment
  RSA50308  Juncus phaeocephalus E. K. Balls 1949-5-9 13467 Orange [Rancho Santa Ana] Botanic Garden, Santa Ana River Canyon. 198 Comment
  UCR193074  Juncus rugulosus A. C. Sanders, Mitch Provance 2008-5-20 35424 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago area, Santiago Creek Canyon, c. 3/4 mile below Modjeska Canyon confluence 355 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
  RSA101  Juncus xiphioides J. T. Howell 1927-7-18 427 Orange Santa Ana River, Rancho Santa Ana. 152 Comment
  UC520018  Juncus xiphioides Joseph Andorfer Ewan 1932-7-9 7484 Orange 4 mi below Rincon (Prado); Santa Ana River Comment
  UCR234140  Keckiella antirrhinoides Dick Newell, Judy Booth 2012-4-6 244 Orange Peninsular Range; Santa Ana Mtns., Maple Springs Road at Mountain View Trail, Cleveland National Forest 610 Comment
  NY786527  Keckiella antirrhinoides var. antirrhinoides F. R. Fosberg S 5082 Orange Lower Santiago Can. Comment
  RSA659638  Keckiella cordifolia T. A. Daubert 1991-5-26 676 Orange Tucker Wildlife Sanctuary, Modjeska Canyon, turn around island Comment
  RSA659899  Keckiella cordifolia Karl Price 1988-5-21 40 Orange An unnamed side canyon within Hot Springs Canyon. It is on Hot Springs Canyon Rd., 0.75 mi. North of Ortega Hwy. (74), 12.6 mi. East of San Juan Capistrano. 305 Comment
  UCR27507  Keckiella cordifolia T. P. Krantz 1981-6-18 s.n. Orange Santa Ana Mtns, Main Divide Truck Trail near the head of the canyon Comment
  UCR36089  Keckiella cordifolia D. C. Michener 1980-7-14 s.n. Orange Santa Ana Mtns., Starr Ranch Audubon Sanctuary. Crow Creek, c. 1.3 miles north of confluence with Bell Canyon Comment
  RSA718970  Kickxia elatine Fred M. Roberts, Robert L. Allen 2006-10-8 6410 Orange San Juan Capistrano: San Juan Creek Flood Control Channel, c.a. 0.2 to 0.3km N Stonehill Dr. bridge and 1.1km SSE Marco Forster Jr. High Sch. 4 Comment
  RSA539358  Koeleria macrantha Fred M. Roberts, Carol A. Roberts 1988-6-9 4081 Orange Santa Ana Mountains: Modjeska Peak, 0.9km SW summit., 3730500mN, 449000mE 1542 Comment
  SD175854  Koelreuteria bipinnata D. G. Kelch 2006-12-9 06 556 Orange Irvine, University Dr. along tidal creek just east of I-73. 9 Comment
  UCR239644  Koelreuteria bipinnata Fred M. Roberts 2012-5-9 7555 Orange Santa Ana Mountains, Lake Forest, along Serrano Creek hiking trail, 1.0 m south-southwest of intersection of Commercentre and Dimension Drives 171 Comment
  IRVC21694  Lactuca serriola Fred M. Roberts 1984-8-2 1365 Orange UC Irvine, along Adobe Circle Raod, 0.9km ENE campus center; 2.3km W French Hill, Irvine 30 Comment
  RSA5937  Lactuca serriola C. B. Wolf 1932-7-7 3839 Orange Bryant Ranch, along drainage ditch on Bixby Ave.; 100 ft. W. of Hansen Rd.; 100 ft W of corner of NE 1/4 9 Comment
  UC303536  Laennecia coulteri I. M. Johnston 1918-9-3 2148 Orange ground about lakes Laguna Canyon; Upper Sonoran Zone, San Joachin Hills, Laguna Canyon 106 Comment
  UC485371  Laennecia coulteri C. F. Millspaugh 1920-1-19 4602 Orange Middle Ranch 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
  RSA0127415  Lamarckia aurea Fred M. Roberts 2016-3-17 8010 Orange San Joaquin Hills: City of Irvine, Bommer Canyon, east fork, 0.3 km ESE Cattle Camp near East Fork Trail. 152 Comment
  UC1132172  Lamarckia aurea A. Lewis 1934-4-1 377 Orange Coal Mine 304 Comment
  SD222114  Lasthenia glabrata subsp. coulteri Bramlet 2008-4-3 4150 Orange Peninsular Ranges; Santa Ana Mountains region: Bee Cyn. Bowerman landfill site. 1.1 km south of the Bee Cyn access road and 35 m west of the active landfill, on graded fill slope. Comment
  SEINET5585513  Lasthenia glabrata subsp. glabrata R. E. Riefner Jr. 2013-1 13 -39 Orange City of Lake Forest, along El Toro Rd. at Destry Rd. 211 Comment
  RSA2082  Lasthenia gracilis C. B. Wolf 1931-3-6 1847 Orange Trabuco Canyon, 1 mile above Trabuco Oaks, W slope of Santa Ana Mts 518 Comment
  UC149282  Lasthenia gracilis LeRoy Abrams 1903-4-18 3265 Orange near Capistrano; Trabuco arroyo Comment
  SEINET955802  Lathyrus laetiflorus Norman C. Cooper 1944-1 1374 Orange Elsinore Mtn. 1067 Comment
  RSA292482  Lathyrus sphaericus James Henrickson 1972-10-21 8061 Orange Newport Beach, So. of Jamboree Rd., E. of Irvine Coast Country Club near U.C. Irvine. Irrigated grassland eventually to be used for large Newport Beach Business Center. 46 Comment
  IRVC21512  Lathyrus tingitanus T. W. Mulroy 1973-5-21 1866 Orange San Juan Canyon, Hwy 74, ca. 3.2km E San Juan Guard Station. Santa Ana Mountains 315 Comment
  RSA406636  Lathyrus vestitus subsp. alefeldii M. B. Dunkle 1934-2-19 3844 Orange San Juan Canyon, 366 Comment
  IRVC15053  Lathyrus vestitus subsp. laetiflorus Gordon A. Marsh, K. G. Marsh 1977-5-28 Orange Selva Road. Laguna Niguel Comment
  UC729698  Lathyrus vestitus var. alefeldii Carl B. Wolf 1932-3-8 Orange w base Santa Ana Mts.; , Santiago Dam 304 Comment
  UCSB57541  Lathyrus vestitus var. vestitus Mulroy, T. 1973-5-21 Orange Hwy. 74 ca. 1 mi. E of bridge across San Juan Creek Comment
  RSA799619  Lavatera cretica Justin M. Wood 2011-4-12 3662 Orange South Coast: City of Costa Mesa. Fairview Park, just WNW of Marison Special Education Center. 24 Comment
  UCR223431  Layia platyglossa Dick Newell, Don Millar 2011-3-1 074 Orange Peninsular Range; Santa Ana Mtns. Foothills, MWD road east of outdoor education property, 1.6 mi. NW (312 deg. ) of Irvine Lake dam 258 Comment
  RSA705543  Leersia oryzoides R. E. Riefner Jr. 2003-12-14 3 -458 Orange Featherly Regional Park, Santa Ana River, vicinity of La Palma Avenue and Lomas de Yorba West, S of Gypsum Canyon Road. 105 Comment
  CAS-BOT-BC534382  Lemna gibba Mr. M. F. Braolshane 1904-8-1 s.n. Orange Arch Beach Comment
  CAS-BOT-BC221604  Lepechinia cardiophylla John Thomas Howell 1927-6-26 2606 Orange Claymine Canyon, n. Santa Ana Mts. 609 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
  RSA741723  Lepechinia cardiophylla R. E. Riefner Jr. 2008-3-21 8 -59 Orange Irvine Ranch Reserve, Fremont Canyon Conservation Easement, W Fremont Canyon, Windy Ridge S to W fork canyon habitat. 463 Comment
  UCD115329  Lepidium appelianum Ethelbert Johnson 1931-5-1 2198 Orange Santa Ana. Comment
  CAS-BOT-BC89524  Lepidium lasiocarpum L. R. Abrams 1917-6-23 6569 Orange Balboa. Comment
  POM180599  Lepidium lasiocarpum L. R. Abrams 1917-6-23 6569 Orange Balboa Comment
  RSA66150  Lepidium lasiocarpum F. W. Peirson 1923-3-25 3363 Orange Aliso Creek near Laguna Beach Comment
  IRVC29818  Lepidium latifolium Mary H. White, Mark A. Elvin 2006-9-23 92306 4 Orange San Joaquin Marsh Freshwater Marsh, UC Natural Reserve; SW edge, along San Diego Creek, N of University Drive, E Hwy 73. Southern Coastal 2 Comment
  UCR14029  Lepidium latifolium J. Riley 1973-9-12 s.n. Orange N end of Huntington Beach Comment
  IRVC29094  Lepidium nitidum Fred M. Roberts 1989-3-17 4209 Orange Aliso Canyon, 3.3km SSE Moulton Pk. Aliso-Wood Canyon Regional Park 30 Comment
  SEINET7072489  Lepidium nitidum A. G. Vestal 1963-3-27 s.n. Orange About 1.8 miles up Cai+-ada Gobernadora. Coordinate datum: NAD27. Comment
  CSUSB545  Lepidium nitidum Oscar F. Clarke 1966-3-19 S. N. Orange Irvine Ranch, east of University of Calif. at Irvine, Newport Beach 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
  CAS-BOT-BC12775  Lepidium oxycarpum Carl B. Wolf 1935-3-24 6296 Orange 1 mile north of Buena Park (valley to west of west Coyote Hills). 53 Comment
  RSA362301  Lepidium pinnatifidum Fred M. Roberts 1985-6-2 1836 Orange San Clemente: El Camino Real, 0.2 km by road WNW Ave Pico. 5 Comment
  JEPS53765  Lepidium virginicum Alice King 1908-3-9 Orange Anaheim Plain Comment
  POM50054  Lepidospartum squamatum Helen D. Geis 1902-1 576 Orange Santiago Canyon. Comment
  RSA703703  Lepidospartum squamatum Fred M. Roberts, David E. Bramlet 2004-7-30 6089 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy Cristianitos Canyon, along Cristianitos Ck., 0.93 km SSW Gato Gate and 0.23 km W Cristianitos Road. 76 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
  RSA725526  Leptochloa fusca subsp. uninervia Fred M. Roberts 2007-9-11 6576 Orange San Juan Capistrano: San Juan Creek at the confluence with Trabuco Creek. 17 Comment
  UCR16662  Leptodactylon californicum subsp. leptotrichomum David M. Peterson 1966-3-9 660309- 11 Orange Peninsular Range; Santa Ana Mtns., 13 mi east of San Juan Capistrano on the road to Elsinore 457 Comment
  SD251267  Leptosiphon floribundus R. F. Thorne 1977-11-21 49985 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp. Comment
  RSA5470  Leptosiphon floribundus subsp. glaber E. R. Johnson 1932-05 3703 Orange Along the ridge of the Santa Ana Mts., between summit of skyline and Santiago Peak. 1220 Comment
  RSA651793  Leymus condensatus Jack D. Ingwersen 1962-5-14 s.n. Orange Brea Canyon. Comment
  UC1543184  Leymus condensatus Donald G. Nelson 1935-6-27 329 Orange beaches s Corona del Mar (bluffs facing ocean, s of mouth of Newport Bay) Comment
  JEPS71200  Leymus triticoides L. M. Booth 1932-6-7 1156 Orange Newport Bay Comment
  CDA1076  Limonium binervosum D. G. Kelch 2006-12-9 6 .547 Orange Along Newport Back Bay Dr. in side canyon. Comment
  RSA401665A  Limonium californicum F. R. Fosberg 1930-7-10 53982 Orange Anaheim Landing. [Now Seal Beach, Orange County. Los Angeles Co. on label] 1 Comment
  RSA723486  Limonium duriusculum R. E. Riefner 2005-11-23 5 -772 Orange City of Newport Beach, Newport Bay, Bay View Dr. at Jamboree Rd. 6 Comment
  RSA723491  Limonium duriusculum R. E. Riefner 2005-10-5 5 -707 Orange City of Irvine, Bonita Creek, along La Salud St. near Milano Dr. 9 Comment
  POM311754  Limonium perezii Karen Hosterman 1956-4-7 500 Orange Laguna Beach city, on a cliff overlooking Crescent Bay. Santa Ana Mtn range, Pacific Ocean drainage. 2 Comment
  RSA723547  Limonium ramosissimum R. E. Riefner 2005-11-4 5 -739 Orange City of Rancho Santa Margarita, along Robinson Ranch Rd. near North Peak Rd. 500 Comment
  RSA723550  Limonium ramosissimum R. E. Riefner 2006-8-11 6 -386 Orange Upper Newport Bay, E of Back Bay - Bayside Dr. flats along Big Canyon Creek. 5 Comment
  UCR188997  Limonium ramosissimum Fred M. Roberts 2007-10-29 6623 Orange South Coast, Niguel Hill, Laguna Niguel. Seaview Park, 1.3 km ENE of Aliso Peak 265 Comment
  UCR219807  Limonium ramosissimum 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
  SEINET6045534  Linanthus E. W. Lathrop 1974-6-27 7420 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon. Cleveland National Forest. Comment
  CAS-BOT-BC226774  Linanthus californicus B. D. Stark 1931-3-12 1938 Orange West slope of Santa Ana Mts., 3 mi. no. of Modjeska's Home 304 Comment
  UCR191778  Linanthus dianthiflorus A. C. Sanders, Fred M. Roberts 2008-3-25 34570 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
  UCR5212  Linanthus dianthiflorus Barbara T. Gittins, O. F. Clarke 1966-3-19 894 Orange Pacific slope, Irvine Ranch, east of University of California Irvine campus, Newport Beach 91 Comment
  POM364568  Linanthus dianthiflorus subsp. dianthiflorus Jean Carnine 1932-3-6 15307 Orange Trabuco Canyon. Comment
  SEINET7067522  Linanthus liniflorus A. G. Vestal 1947-6-12 s.n. Orange Canyon Road to Trabuco Canyon. Coordinate datum: NAD27. UTM Zone 11, 444428mE, 3723792mN. Comment
  RSA698401  Linanthus parviflorus Dorothy Sammis s.n. Orange Trabuco Canyon. Comment
  RSA752710  Linaria canadensis Fred M. Roberts 2008-3-19 6787 Orange Dana Point: Dana Point Headlands, CNLM Preserve, 0.8km W Marine Institute, Dana Point Harbor. 60 Comment
  UCR191340  Linaria canadensis A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34617 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
  RSA627749  Linaria canadensis var. texana Scott D. White 1998-3-18 6212 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
  RSA700539  Linaria canadensis var. texana Frances Battey s.n. Orange Orange Co. Park. Comment
  RSA783494  Lithophragma J. D. Olmsted 1959-4-23 456 Orange Spring Trail, Beacon Pines Ranch; 9 miles SW of Corona. Drainage area to Santa Ana River. 762 Comment
  CAS-BOT-BC432274  Lithophragma affine Frank W. Peirson 1925-4-11 5734 Orange Silverado Canyon, Santa Ana Mts. 609 Comment
  RSA599176  Lithophragma affine subsp. affine Scott D. White 1997-3-28 4830 Orange Above Modjeska Canyon, proposed water tank site 425 Comment
  POM8755  Lithophragma affine subsp. mixtum P. A. Munz, R. D. Harwood 1920-4-25 3718 Orange Santa Ana Mountains, Silverado Canyon. 549 Comment
  IRVC21406  Lobelia dunnii var. serrata A. S. Boughey 1968-7-9 405 Orange Santa Ana mtns: upper Santiago Canyon. Peninsular Ranges Comment
  UCR193805  Lobelia dunnii var. serrata A. C. Sanders, Fred M. Roberts 2008-7-16 35837 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Dripping Springs off Limestone Canyon, c. 7.5 mi. ESE of Tustin 391 Comment
  RSA719409  Lobularia maritima Fred M. Roberts, Robert L. Allen 2006-10-8 6426 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
  CSUSB1414  Lobularia maritima John S. Davis 1972-4-1 72-04-01 1 Orange Newport Beach Newport Beach, corner of San Jaquin Hills Road and Back Bay Road on southwest slope. 3 Comment
  CAS-BOT-BC283494  Lolium multiflorum Carl B. Wolf 1932-7-7 3858 Orange Bryant Ranch, Bryant Ave, at pump house, 0.5 mile E of Los Alamitos Blvd Comment
  CAS-BOT-BC269106  Lolium perenne Ira L. Wiggins 1965-10-24 20290 Orange At corner of Yorba Linda and State College Boulevards, Fullerton Comment
  RSA731970  Lolium perenne A. C. Sanders, Fred M. Roberts 2008-4-8 34735 Orange Peninsular Range: Lomas de Santiago, Loma Ridge, head of Hicks Canyon. S of Santiago Reservoir. 351 Comment
  UCR97884  Lolium perenne subsp. multiflorum George K. Helmkamp, E. A. Helmkamp 1997-4-24 1648 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
  RSA0011624  Lolium perenne subsp. multiflorum Rankin s.n. Orange Irvine Park. Comment
  RSA5946  Lolium perenne subsp. multiflorum C. B. Wolf 1932-7-7 3858 Orange Pump house on Bryant Ave., 0.5 mile E of Los Alamitos Blvd. 8 Comment
  CLARK-A1528-4720  Lolium temulentum John C. Roos 1937-5-21 2068 Orange Santa Ana Comment
  POM202585  Lolium temulentum L. M. Booth 1932-5-19 1078 Orange Newport Bay. Comment
  RSA773521  Lomatium dasycarpum subsp. dasycarpum Fred M. Roberts 1999-5-3 5212 Orange Lomas de Santiago: Loma Ridge, Central Limestone Canyon, west slope, 2.2 km NW Bolero Lookout and 0.8 km NE Bolero Spring. 397 Comment
  SEINET12118936  Lomatium utriculatum J. F. Bright, Wyman, C. 1933-1 8100 Orange in Santa Ana foothills Comment
  SEINET10465145  Lonicera subspicata James S. Miller 1992-5-8 Miller 7451 Orange 2 mi E of the border of Cleveland National on California route 74. 310 Comment
  UC864942  Lotus I. W. Clokey 1932-3-1 5329 Orange Laguna Beach Comment
  IRVC26711  Lotus argophyllus var. argenteus Mark A. Elvin 2004-4-4 3212 Orange UCI Arboretum Southern Coastal 15 Comment
  RSA681023  Lotus hamatus Fred M. Roberts, David E. Bramlet 2003-3-13 5582 Orange Donna O'Neill Land Conservancy: Ridge west of Christianitos Canyon, 1.6 km NW Sycamore Gate. 207 Comment
  RSA599637  Lotus heermannii Fred M. Roberts, Paul Barrett, Gail Bastillos 1995-7-25 4966 Orange San Juan Capistrano: San Juan Creek, 1.0 km SW La Novia Street bridge. 27 Comment
  UCR192215  Lotus humistratus A. C. Sanders, Fred M. Roberts 2008-5-6 35254 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
  POM50645  Lotus micranthus L. R. Abrams 1901-06 1825 Orange Santiago Peak Trail 915 Comment
  RSA754059  Lotus purshianus A. C. Sanders, Fred M. Roberts 2008-7-16 35854 Orange Lomas de Santiago, upper Hangmans Tree Canyon. 395 Comment
  POM1916  Lotus salsuginosus I. M. Johnston 1918-5-4 1932 Orange Laguna Beach Comment
  RSA681848  Lotus salsuginosus Scott D. White, Michael Honer 2003-6-12 9541 Orange Southwestern Santa Ana Mtn. Foothills: Rancho Mission Viejo. Upper end of Trampas Canyon. 152 Comment
  UC729695  Lotus scoparius Carl B. Wolf 1932-3-8 Orange 0.5 mi n Corona del Mar (borders of Newport Bay); Newport Bay 7 Comment
  UCR4073  Lotus scoparius Carole Sims 1965-3-28 s.n. Orange South Coastal Plains, 100 yards from Pacific Coast Highway on Salt Creek Road toward the beach. Between South Laguna and Dana Point 18 Comment
  RSA406884  Lotus scoparius N. C. Cooper 1943-12-26 2015 Orange Corona Del Mar Comment
  SEINET10484472  Lotus scoparius Melvin L. Conrad, David B. Dunn 1973-6-13 Conrad 7127 Orange In vicinity of laguna beach. Corolla yellow fading to orange. 152 Comment
  IRVC2242  Lotus scoparius subsp. brevialatus C. Hooven 1965-4-25 Orange Spruce Ave. and Palisades. Santa Ana Heights Comment
  IRVC15131  Lotus scoparius subsp. scoparius A. S. Boughey 1968-7-9 404 Orange Santa Ana mtns: upper Santiago Canyon. Peninsular Ranges 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
  UCR193542  Lotus scoparius var. scoparius A. C. Sanders, Fred M. Roberts 2008-7-3 35668 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor 415 Comment
  RSA649262  Lotus strigosus T. Pringle 1966-3-22 68 Orange In Silverado Canyon Comment
  IRVC21292  Lotus strigosus var. strigosus Fred M. Roberts, Karlin G. Marsh 1984-2-15 1201 Orange Casper's Regional Park: Rancho: Rancho Carrillo Rd., 1.0km NE Visitor Center; 3.0km SW Lucas Survey Mark, Santa Ana Mountains 150 Comment
  IRVC17284  Lotus strigosus var. strigosus Karlin G. Marsh 1980-5-5 Orange Rancho Mission Viejo: Planning area; along road way. Southern Coastal Comment
  UCR138409  Ludwigia repens Scott D. White, Brian Leatherman 1997-6-12 5343 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
  UC1543224  Lupinus Donald G. Nelson 1935-3-23 182 Orange near dump just s of E. Orange thorpe Ave., E. Fullerton E. Fullerton Comment
  RSA184076  Lupinus I. L. Wiggins 1966-3-31 20574 Orange Grazed field along south side of Brea Olinda Boulevard, near Carolina Avenue. Comment
  IRVC24501  Lupinus bicolor subsp. umbellatus Fred M. Roberts, Gordon Marsh 1986-2-28 2623 Orange Mission Viejo: N of Oso Parkway; 4.2km NNE Saddleback Community College. Southern Coastal 200 Comment
  UC527218  Lupinus excubitus C. B. Wolf 1931-3-25 1936 Orange along the Santa Fe R.R. 1 mi w Esperanza (Santa Ana Canyon); Santa Ana Canyon 106 Comment
  IRVC17057  Lupinus excubitus var. hallii A. S. Boughey 1969-5-3 430 Orange Black Star Canyon on seaward side near crest. Santa Ana Mountains Comment
  RSA503884  Lupinus excubitus var. hallii M. B. Dunkle 1938-5-28 5285 Orange San Juan Canyon Comment
  IRVC2324  Lupinus hirsutissimus Randy Acevedo 1965-4-30 s.n. Orange Newport Beach, [Newport] Back Bay Southern Coastal Comment
  RSA2086  Lupinus hirsutissimus Carl B. Wolf 1931-3-6 1843 Orange Trabuco canyon, 1/2 mile above Trabuco Oaks, west slope of Santa Ana Mountains. 457 Comment
  RSA409  Lupinus hirsutissimus J. T. Howell 1928-2-25 847 Orange Nolina Canyon, Rancho Santa Ana. 152 Comment
  RSA413701  Lupinus hirsutissimus M. B. Dunkle 1933-3-5 3081 Orange San Juan Canyon. Comment
  IRVC20367  Lupinus hirsutissimus Fred M. Roberts 1983-3-16 931 Orange Laguna Beach: Sycamore Hills, central ridge, 1.1km NNE jct. El Toro and Laguna Canyon Rds.; 5.4km [ESE] Signal Peak. Southern Coastal 156 Comment
  LA205140  Lupinus latifolius var. parishii Norman C. Cooper; 1944-6-4 1336 Orange San Juan Canyon 548 Comment
  CAS-BOT-BC217749  Lupinus longifolius E. R. Johnson 1932-4-15 2957 Orange Rancho Santa Ana, 1 mi. NW of Roundtop (Section 16) 457 Comment
  JEPS65102  Lupinus microcarpus var. densiflorus Alice King June 1908 Orange Santa Ana Comment
  IRVC21666  Lupinus microcarpus var. microcarpus R. L. Allen 1979-2-28 A 6 Orange Mission Viejo: right shoulder of Interstate 5, northbound, near Alicia Bridge. Southern Coastal Comment
  HSC14924  Lupinus polycarpus C. L. Hitchcock 1966-3-15 Orange 1/2 mi. E of Brea Comment
  SEINET3131617  Lupinus sparsiflorus Unknown 1903-4-19 3277 Orange Near San Juan Comment
  UCR240078  Lupinus sparsiflorus Dick Newell, Don Millar 2012-5-22 253 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Hangmans Tree Rd. at Santiago Creek 350 Comment
  UCR97724  Lupinus sparsiflorus Scott D. White 1997-2-19 4701 Orange Santa Ana Mtns, above Modjeska Canyon; proposed water tank site 488 Comment
  IRVC8674  Lupinus sparsiflorus subsp. sparsiflorus Charles W. Sexton 1965-3-27 s.n. Orange Ortega Highway out of San Juan Capistrano Southern Coastal Comment
  RSA507484  Lupinus succulentus Jeri Hirshberg 1988-6-7 s.n. Orange Santa Ana Mountains, head of Gypsum Canyon 412 Comment
  RSA0055061  Lupinus succulentus Jim Shevock 1971-3-8 757 Orange Trabuco Canyon, Santa Monica Mountains. 396 Comment
  SEINET12154823  Lupinus succulentus J. F. Bright, Wyman, C. 1933-1 8101 Orange Santa Ana foothills Comment
  IRVC21273  Lupinus truncatus Fred M. Roberts, Karlin G. Marsh 1984-2-15 1203 Orange Casper's Regional Park: Rancho: Rancho Carrillo Rd., 1.0km NE Visitor Center; 3.0km SW Lucas Survey Mark, Santa Ana Mountains 150 Comment
  RSA414394  Lupinus truncatus M. B. Dunkle 1933-3-5 3080 Orange San Juan Canyon. 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
  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
  UCSB21320  Lupinus truncatus Keefe, Joseph 1967-3-26 Orange South edge of Newport Bay; on Back Bay Drive; 2.0 miles northeast of intersection with Jamboree Drive; Corona del Mar 3 Comment
  RSA0055059  Lupinus truncatus James R. Shevock 1970-3-25 66 Orange Santa Ana Mountains. 381 Comment
  SEINET7062958  Lychnis coronaria A. G. Vestal 1947-6-12 s.n. Orange Santiago Creek Valley 0.4 mile below Silverado Canyon Fork. UTM Zone 11, 438682mE, 3733866mN. (WGS84/NAD83). 384 Comment
  SD155417  Lycium brevipes var. brevipes Craig Reiser 2001-3-21 Orange San Clemente, south of the intersection of Calafia and Ola Vista. Comment
  RSA578028  Lycium brevipes var. hassei R. E. Riefner 1995-3-19 95 -77 Orange San Clemente State Beach Comment
  RSA0038506  Lycium californicum R. E. Riefner Jr. 2012-11-24 12 -558 Orange city of San Clemente, Presidio Ave. c. 0.2 mi south of Ave. Pico 34 Comment
  RSA0014840  Lythrum californicum F. W. Peirson 1924-8-29 5066 Orange 4 miles south of Santa Ana. Comment
  RSA0014842  Lythrum californicum J. T. Howell 1927-7-15 403 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  RSA0014843  Lythrum californicum F. W. Peirson 1924-5-31 4652 Orange Laguna Canyon, near Laguna Beach. 107 Comment
  UCR193072  Lythrum hyssopifolia A. C. Sanders, Mitch Provance 2008-5-20 35422 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago area, Santiago Creek Canyon, c. 3/4 mile below Modjeska Canyon confluence 355 Comment
  POM49378  Madia elegans subsp. elegans L. R. Abrams 1901-06 1817 Orange Santiago Peak Trail 915 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
  CLARK-A1528-5622  Madia sativa John C. Roos 1960-5-30 Orange Santa Ana Mountains Comment
  UC185712 Image available Malacothamnus densiflorus J. C. Nevin Orange San Juan Capistrano Comment
  CAS-BOT-BC206254  Malacothamnus fasciculatus Louis C. Wheeler 1932-7-9 941 Orange Santa Ana River, 5 mi. below Prado 152 Comment
  RSA3155  Malacothamnus fasciculatus Carl B. Wolf 1931-7-25 2294 Orange along road at north side of pear orchard, Rancho Santa Ana, Santa Ana Canyon 122 Comment
  RSA751428  Malacothamnus fasciculatus A. C. Sanders, Fred M. Roberts 2008-7-3 35677 Orange Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor 365 Comment
  SBBG87367  Malacothamnus fasciculatus var. fasciculatus K. Kimberley 1988-5-29 17 Orange Hwy 18, 2 mi SW of Irvine Lake 152 Comment
  UCR228794  Malacothrix saxatilis Dick Newell, Don Millar 2011-5-24 161 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Hicks Haul Road 286 Comment
  UCR130491  Malacothrix saxatilis var. saxatilis R. E. Riefner Jr. 2000-9-19 00- 739 Orange South Coast, Dana Point, west of Pacific Coast Hwy, vicinity of Salt Creek Park and Ritz Carlton Hotel 15 Comment
  IRVC22734  Malacothrix saxatilis var. tenuifolia Fred M. Roberts 1985-5-13 1787 Orange South Laguna; Mouth of Aliso Canyon, 0.6km NW Aliso Peak, 6 Comment
  RSA507486  Malacothrix saxatilis var. tenuifolia Jeri Hirshberg 1988-6-7 s.n Orange Santa Ana Mts. 274 Comment
  UCR188926  Malephora luteola Robert DeRuff 2007-11-24 s.n. Orange Newport Beach, Newport Back Bay,Big Canyon just west of San Joaquin Hills Road 34 Comment
  UC68860  Malosma laurina H. M. Hall July, 1905 6731 Orange Santa Ana R. Comment
  UCD116855  Malosma laurina P. B. Kennedy 1925-1-12 s.n. Orange Irvine Range. Comment
  RSA732087  Malva parviflora A. C. Sanders, Fred M. Roberts 2008-3-25 34534 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills. 259 Comment
  UCR103163  Malva parviflora Scott D. White 1997-3-26 4812 Orange Univ. of Calif. Irvine Campus, east of main campus at site of proposed student recreation center, east of main campus, between California Avenue and Culver Drive. 40 Comment
  OBI30254  Malva parviflora Sally Hawn 1971-4-6 80 Orange In waste field E of 11031 Meads, Orange 152 Comment
  POM202032  Malvella leprosa L. M. Booth 1932-6-9 1174 Orange Santa Ana River, 0.5 mile from ocean Comment
  RSA0093741  Malvella leprosa Fred M. Roberts 2014-4-21 7849 Orange South Coast. SAN JOAQUIN HILLS: Laguna Lake 1 (Upper Laguna Lake), south basin. 113 Comment
  UCR258350  Malvella leprosa Fred M. Roberts 2014-4-21 7849 Orange South Coast, SAN JOAQUIN HILLS: Laguna Lake 1 (Upper Laguna Lake), south basin 113 Comment
  CDA35815  Malvella leprosa Robert L. Pope 1957-5-17 Orange [No other data] 0 Comment
  SD143935  Marah macrocarpa Scott D. White 1996-12-20 4633 Orange Santa Ana Mtns above Modjeska Canyon. Proposed water tank site. 424 Comment
  UCR193277  Marrubium vulgare A. C. Sanders, Fred M. Roberts 2008-6-17 35511 Orange Peninsular Range; Santa Ana Mtns., middle section of Weir Canyon, SSE of Walnut Canyon Reservoir 225 Comment
  UCR209346  Marrubium vulgare Fred M. Roberts 2008-4-15 6903 Orange Lomas de Santiago, Loma Ridge, Lower Hicks Canyon, east ridge, Conservation Trail, 1.6 km east-southeast of Rattlesnake Reservoir Dam and 2.7 km west-southwest of Bee Peak, Irvine Ranch Conservancy 172 Comment
  RSA650826  Marrubium vulgare Daniel Truong 1991-5-13 24 Orange Irvine Regional Park, left field adjacent to main entrance, within 1/4 mile radius of 'closed area' Comment
  UCSB12635  Marrubium vulgare Whittington, M. 1962-4-20 Orange South side of Back Newport Bay about .5 miles south of salt works, Newport Comment
  CAS-BOT-BC67806  Marsilea vestita Arthur Haupt 1935-4-12 s.n. Orange Costa Mesa Comment
  RSA666090  Marsilea vestita Fred M. Roberts, Michelle Lee, Kristen Szabo 2001-4-13 5429 Orange Rancho Mission Viejo: Chiquita Ridge, 0.3km WNW Median Rancho Survey Marker., PCR Vernal Pool 4. 226 Comment
  RSA590719  Marsilea vestita R. E. Riefner 1994-4-15 94 -319 Orange Dana Hills, w ca 2 mi. of Cooks Reservoir Comment
  UC1532996  Matricaria discoidea Robert F. Thorne 1975-4-5 45566 Orange near Irvine and coast; San Joaquin Marsh Comment
  RSA357003  Matricaria matricarioides R. F. Thorne 1975-4-6 45566 Orange San Joaquin Marsh: Near Irvine and coast. Comment
  RSA923  Matricaria matricarioides J. T. Howell 1928-2-7 822 Orange Near the ranch houses, Rancho Santa Ana 152 Comment
  POM311206  Matthiola incana Karen Hosterman 1956-4-7 501 Orange Laguna Beach City, cliff overlooking Crescent Bay. Santa Ana Mtn range, Pacific Ocean drainage. 2 Comment
  RSA269262  Mazus japonicus G. D. Barbe 1973-8-9 1694 Orange Bordier's Nursery, 7231 Irvine Blvd., Santa Ana (Tustin). Comment
  UC1607983  Medicago Donald G. Nelson 1935-3-30 200 Orange hills e. Fullerton (at head of Raymond Ave.) 76 Comment
  RSA697983  Medicago hispida Marjorie Smith s.n. Orange Santa Ana High school grounds. Comment
  RSA737483  Medicago polymorpha Fred M. Roberts 2008-3-12 6733 Orange Dana Point: Dana Point Headlands CNLM Preserve, western side, c.a. 0.8 km W Marine Institute (Dana Point Harbor). 50 Comment
  UCR103219  Medicago polymorpha Scott D. White 1997-2-19 4692 Orange Santa Ana Mtns, above Modjeska Canyon; proposed water tank site 488 Comment
  POM348036  Medicago polymorpha Albert J. Perkins 1912-10-15 s.n. Orange Peatlands near head Newport Bay. Comment
  RSA709724  Medicago polymorpha J. B. Anderson 1966-4-16 581 Orange Corona Del Mar: Buck Gully - Little Corona Beach. 0 Comment
  RSA755559  Medicago rigidula A. C. Sanders, Fred M. Roberts 2008-3-25 34527 Orange Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  CAS-BOT-BC354338  Medicago truncatula R. E. Riefner, Jr. 2010-6-11 10 -62 Orange City of Fountain Valley, Southpark Ave. at Euclid St. 9 Comment
  CDA35809  Medicago truncatula A. C. Sanders, Fred M. Roberts 2008-3-25 34521 Orange Peninsular Range; Santa Ana Mtns.; Weir Canyon, 4 miles east-north-east of Villa Park at south-east edge of Anaheim Hills. Comment
  SD237448  Medicago truncatula A. C. Sanders, Fred M. Roberts 2008-3-25 34521 Orange Peninsular Range: Santa Ana Mountains: Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills (Black Star Canyon 7.5'Q) 259 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
  RSA746475  Medicago truncatula R. E. Riefner Jr. 2008-5-19 08 -92 Orange City of San Juan Capistrano, general vicinity of Antonio Pkwy. at Hwy 74 (Ortega Hwy). 88 Comment
  RSA746478  Medicago truncatula R. E. Riefner Jr. 2008-3-24 08 -64 Orange Rancho Santa Margarita, Tijeras Canyon, N ca. 0.5 mi from Meandering Trails Rd. on Antonio Pkwy. 221 Comment
  SD243385  Melaleuca viminalis R. E. Riefner Jr. 2006-11-12 06 669 Orange City of Newport Beach, urban creek draining into San Diego Creek at confluence with Newport Bay near SR-73 overpass (San Joaquin Gun Club, Tustin 7.5'Q) 6 Comment
Read comments
Oct 4 2017
  RSA542365  Melica imperfecta Fred M. Roberts 1988-4-8 3896 Orange Lomas de Santiago: Loma Ridge, Central Linestone Canyon, 4.1 kilometers NNW Bolero Lookout. 323 Comment
  RSA697761  Melica imperfecta Aileen Adams 1932-4-29 s.n. Orange Slope above dam. [Orange Co.?] Comment
  UC1543191  Melica imperfecta Donald G. Nelson 1935-4-6 213 Orange e of San Juan Capistrano (San Juan Canyon, n of summer ranger station near the main highway, s of Cleveland National Forest); Santa Ana Mountains, San Juan Canyon Comment
  RSA696596  Melica imperfecta J. Russell Bruff 1927-3-16 2 -I Orange Gun Club. Comment
  POM50513  Melica imperfecta var. flexuosa Le Roy Abrams 1901-06 1689 Orange San Joaquin Hills Comment
  CDA20831  Melilotus albus P. Akers 2006-3-25 PA 5 -06 Orange Peninsular Ranges; Yorba Linda. Santa Ana River S of La Palma Dr, 0.6-0.9 mi E of Yorba Linda Dr. 121 Comment
  UCR210375  Melilotus albus T. B. Salvato, Billy Deane 2006-10-16 1933 Orange South Coast, Irvine, San Diego Creek flood control channel, between Michelson Drive and the 405 FWY 12 Comment
  RSA5603  Melilotus albus Carl B. Wolf 1932-6-28 3756 Orange Bryant Ranch: along western half of north boundary of 40 acre Valencia orange grove at Bryant Ave. and Hansen Road. 9 Comment
  SEINET12169950  Melilotus albus S. A. Thompson, Rawlins, J. E. 1988-8-27 5261 Orange Cleveland National Forest, 3.8 mi E of San Juan Hot Springs on CA 74 370 Comment
  IRVC2405  Melilotus indicus L. McCabe 1965-4-14 s.n. Orange Newport Beach; Corona del Mar. Southern Coastal Comment
  IRVC2408  Melilotus indicus Polly Brecht 1965-3-30 s.n. Orange Newport Beach; Corona del Mar, Corona del Mar High School. Southern Coastal Comment
  IRVC2416  Melilotus indicus McGuire 1965-3-14 s.n. Orange Newport Beach; Bayside Dr. 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
  RSA732167  Melilotus indicus A. C. Sanders, Fred M. Roberts 2008-3-25 34536 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills. 259 Comment
  RSA735029  Melilotus indicus Scott D. White, Justin M. Wood 2008-4-10 11849 Orange Chino Hills: Powerline access road just N of CHSP boundary and just W of Orange/SB co. line. Approx. 1 mi. NW of Gilman Peak. 366 Comment
  RSA743458  Melilotus indicus Fred M. Roberts 2008-3-19 6786 Orange Dana Point: Dana Point Headlands, CNLM Preserve, 0.8km W Marine Institute, Dana Point Harbor. 60 Comment
  CLARK-A1528-981  Melilotus indicus Patricia A. Andrews 1975-6-26 5919 Orange Capistrano Bay Beach 9 Comment
  POM312088  Melilotus indicus Jane Shelton 1963-5-3 22 Orange El Morro Beach, Laguna, Alt 5ft 2 Comment
  RSA184136  Melilotus indicus I. L. Wiggins 1966-3-18 20530 Orange California State College at Fullerton. Comment
  RSA759267  Mentzelia Robt. Allen, Reginald Durant, David Taylor 2008-4-11 s.n. Orange Silverado Canyon, circa 1 air mile EENE above Maple Springs Forest Gate. 666 Comment
  SD236328  Mentzelia micrantha A. C. Sanders, Fred M. Roberts, Amber ONeal 2008-5-9 35313 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, along fire line/bulldozer cut, c. 1.5 mi. east of Walnut Cyn Reservoir 345 Comment
  UCR203876  Mentzelia micrantha R. E. Riefner Jr. 2007-6-11 07- 252 Orange Santa Ana Mountains, Irvine Ranch Reserve, Fremont Canyon Conservation Easement, upper Fremont Canyon, Donaldson Ranch area 382 Comment
  RSA562737  Mentzelia micrantha Steve Boyd, Tim Ross 1992-5-20 7453 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of wilderness in Lucas Canyon along a new section of trail heading up major side canyon northward to Sitton Peak Road (7S09), 305 Comment
  UCR25309  Mesembryanthemum crystallinum John C. Roos 1965-6-16 s.n. Orange Dana Point Comment
  CSUSB13  Mesembryanthemum crystallinum Heather Hanson 1966-5-5 s.n. Orange One mile south of Laguna on the beach Comment
  IRVC17949  Mesembryanthemum nodiflorum A. B. McGee 1980-6-12 Orange San Joaquin Freshwater Marsh, south side; center of road. Irvine Comment
  RSA799937  Mesembryanthemum nodiflorum Justin M. Wood 2011-4-12 3669 Orange South Coast, Santa Ana River: marsh just upstream of Pacific Coast Highway. On isolated sand capped island. 0 Comment
  RSA18534  Mesembryanthemum nodiflorum C. B. Wolf 1927-7-23 663 Orange Along the coast just north of San Clemente. Comment
  UC1929783  Micropus californicus Scott D. White, Amanda Duchardt 2003-3-27 8860 Orange SANTA ANA MOUNTAIN FOOTHILLS: Canyon bottom and west facing slopes above Canada Gobernadora. Comment
  RSA588793  Micropus californicus Fred M. Roberts 1990-4-18 4567 Orange Rancho Mission Viejo: Chiquita Ridge, just west of Canada Chiquita, 2.5km SSE Median Rancho Survey Marker. 91 Comment
  UCR238212  Microseris douglasii Mark A. Elvin 2003-3-30 2388 Orange South Coast, north side of UC Irvine Preserve, between core of UCI campus (E Peltason Dr.) and Hwy 73 69 Comment
  UCR158147  Microseris douglasii subsp. douglasii Adrian Wolf 1998-4-25 160 Orange South Coast, San Joaquin Hills, west Bommer Canyon ridge, 1 km NW of Signal Peak, 3 km east of San Joaquin Reservoir 287 Comment
  UCR158153  Microseris douglasii subsp. douglasii Adrian Wolf 1998-4-24 166 Orange South Coast, San Joaquin Hills, Shady Canyon, upper section, 2.25 km ENE of Signal Peak, 3 km west of Laguna Lakes 277 Comment
  RSA625807  Microseris douglasii subsp. platycarpha Scott D. White, Noel Davis 1998-4-24 6345 Orange Mission Viejo Area: Aliso Creek watershed, E of El Toro Rd. just N of jct. w/ Valley Vista Wy. Large proposed subdivision called Saddleback Meadow. 305 Comment
  UCR171017  Microseris douglasii subsp. platycarpha R. E. Riefner Jr. 2006-4-12 06- 117 Orange Irvine, north foot of San Joaquin Hills, vicinity of Quail Hill, SSW of 405 Freeway and Shady Canyon Rd. 46 Comment
  UCR208155  Microseris douglasii subsp. platycarpha Fred M. Roberts, D. E. Bramlet 2003-3-27 5621 Orange Coastal Plains & Basins; South Coastal Plain region, Rancho Mission Viejo: Donna O'Neill Land Conservancy, Cristianitos Cyn., 0.79km N Sycamore Gate, 0.23km W Cristianitos Rd. 126 Comment
  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
  UCR238203  Microseris heterocarpa Mark A. Elvin 2003-3-30 2395 Orange South Coast, north side of UC Irvine Preserve, between core of UCI campus (E Peltason Dr.) and Hwy 73 69 Comment
  RSA95237  Microseris heterocarpa F. W. Peirson 1923-3-25 4252 Orange Aliso Creek, near Laguna Beach. Comment
  RSA965  Microseris heterocarpa J. T. Howell 1928-2-25 832 Orange Orange county: near the ranch houses, Rancho Santa Ana. 152 Comment
  RSA732057  Microseris lindleyi A. C. Sanders, Fred M. Roberts 2008-3-25 34518 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  UC217850  Mimulus P. A. Munz, R. D. Harwood 1920-4-24 3758 Orange Sierra Canyon Santa Ana Mts. 365 Comment
Read comments
Sep 17 2011
  RSA598961  Mimulus aurantiacus Scott D. White 1997-3-28 4833 Orange Above Modjeska Canyon, proposed water tank site. 425 Comment
  SEINET10896230  Mimulus aurantiacus subsp. australis Melvin L. Conrad, David B. Dunn 1973-6-13 Conrad 7134 Orange In vicinity of laguna beach. Corolla yellow. 152 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
  UCR116521  Mimulus aurantiacus var. aurantiacus Dan Hare 2001-5-1 s.n. Orange South Coastal Plains region, Aliso Canyon Regional Park, approximately 3.3 km from the Pacific Ocean, near South Laguna 100 Comment
  JEPS87335  Mimulus aurantiacus var. pubescens David M. Thompson 1992-5-16 1068 Orange 0.6 mi sw San Bernardino Co. line (along Carbon Canyon Road (Hwy 142)) 230 Comment
  RSA82104  Mimulus aurantiacus var. pubescens F. W. Peirson 1924-5-31 4660 Orange Laguna Canyon, near Laguna Beach. 61 Comment
  UCSB56675  Mimulus aurantiacus var. pubescens Roberts, Fred 1984-2-4 Orange Laguna Beach; South Laguna; Temple Hill; Upper Hobo Canyon; 1.2km NNE Goff Island; 2.4 km S Top of the World School 200 Comment
  RSA16344  Mimulus aurantiacus var. puniceus Percy C. Everett 1935-6-18 7189 Orange Santa Ana Mts., Main Divide Motorway to Santiago Pk., 1 mi. from Ortega Highway. 732 Comment
  RSA454329  Mimulus aurantiacus var. puniceus N. C. Cooper 1949-5-1 3946 Orange San Juan Canyon. 610 Comment
  UC1281141  Mimulus aurantiacus var. puniceus H. E. McMinn 1949-6-9 5617 Orange about 3 mi e San Juan Capistrano (on Highway 74) Comment
  UCR116517  Mimulus aurantiacus var. puniceus Dan Hare 2001-5-1 s.n. Orange South Coastal Plains region, Crystal Cove State Park, approximately 5 km north of the city of Laguna Beach, 1.2 km inland from the coast 50 Comment
  RSA790707  Mimulus brevipes R. H. McArthur 1934-4-28 16 Orange Trabuco and Ladd Canyons. PR8. Comment
  RSA712936  Mimulus cardinalis Fred M. Roberts 2005-10-3 6291 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
  UCR193808  Mimulus cardinalis A. C. Sanders, Fred M. Roberts 2008-7-16 35835 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Dripping Springs off Limestone Canyon, c. 7.5 mi. ESE of Tustin 391 Comment
  UCSB48200  Mimulus cardinalis Roberts, Fred 1981-6-26 Orange Sant Ana Mts; Viejo Canyon; 0.1km N Calif. Rte. 74; 2.7km E San Juan Gurad Station 291 Comment
  UC1294009  Mimulus clevelandii E. K. Balls 1958-6-27 23280 Orange 4.1 mi from (gate of) Silverado ( Santa Ana Mountains, Silverado Canyon); Santa Ana Mountains, Silverado Canyon 1036 Comment
  UCSC000866  Mimulus clevelandii Peter Kamb 1948-6-19 1102 Orange Holy Jim Canyon, Santa Ana Mts. 610 Comment
  RSA769079  Mimulus guttatus Minor Warne 1934-04 s.n. Orange Laguna Hills Comment
  SEINET7072485  Mimulus guttatus A. G. Vestal 1963-3-27 s.n. Orange At Cai+-ada Gobernadora. Coordinate datum: NAD27. Comment
  RSA0045513  Mimulus guttatus Keith E. Hoffmaster 1935-4-14 928 Orange Trabuco creek, 1/4 mi. above CCC camp at Trabuco Oaks, Santa Ana Mts. PR 8. Comment
  CLARK-A1528-4272  Mimulus puniceus John C. Roos 1965-6-16 Orange Dana Point Comment
  CHSC19537  Mirabilis californica P. Fehr 1974-4-10 1 Orange Beach of trailor park between Costa Mesa and Laguna Beach on w side of Coast hwy. 0 Comment
  HSC16157  Mirabilis laevis C. L. Hitchcock 1966-3-15 24143 Orange Stearns Lease, 1.5 mi. E of Brea. Comment
  RSA700926  Mirabilis laevis Keith E. Hoffmaster 1928-5-5 s.n. Orange San Onofre, other places Comment
Read comments
Nov 19 2013
  UCR220305  Mirabilis laevis Dick Newell, Don Millar, Jutta Burger 2010-3-16 011 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Agua Chinon Wash 250 m north of Hwy 241 toll road 201 Comment
  RSA737549  Mirabilis laevis var. crassifolia Fred M. Roberts 2008-3-12 6712 Orange Dana Point: Dana Point Headlands CNLM Preserve, western side, c.a. 0.8 km W Marine Institute (Dana Point Harbor). 50 Comment
  POM9829  Mirabilis laevis var. crassifolia P. A. Munz, R. D. Harwood 1920-4-24 3759 Orange Sierra [Freemont] Canyon, Santa Ana Mountains. 366 Comment
  RSA465233  Mirabilis laevis var. crassifolia Albert J. Perkins 1914-3-14 s.n. Orange Santa Ana; near Coward s Cove. Comment
  RSA0010773  Mollugo verticillata I. M. Johnston 1924-7-10 s.n. Orange Laguna Canyon. Comment
  UCD86070  Monanthochloe littoralis Peter H. Raven 1958-7-5 13562 Orange north of Surfside. Comment
  SEINET11692038  Monanthochloe littoralis S. B. Parish, Parish, W. F. 1882-1 1603 Orange Newport Bay Comment
  IRVC28229  Monardella hypoleuca A. C. Sanders, Mark A. Elvin 2005-9-2 31607 Orange Upper Holy Jim Canyon, a major tributary of Trabuco Cyn, along the trail in switchbacks. Peninsular Ranges, Santa Ana Mtns 820 Comment
Read comments
Aug 13 2012
  RSA735941  Monardella hypoleuca Justin M. Wood 2008-6-23 15 Orange Foothills of the Santa Ana Mountains, on the Irvine Ranch. S of limestone canyon, approx. 1/2 mile S of the sinks. 351 Comment
Read comments
Aug 13 2012
  SBBG128642  Monardella hypoleuca subsp. intermedia A. C. Sanders, M. A. Elvin 2005-9-2 31613 Orange near head of Holy Jim Cyn, a major tributary of Trabuco Cyn, along the trail in the switchbacks, below the towers on Santiago Peak; Santa Ana Mtns 998 Comment
  SD237500  Monardella hypoleuca subsp. intermedia A. C. Sanders, Mark A. Elvin 2005-9-2 34615 Orange Santa Ana Mountains: upper Holy Jim Canyon, a major tributary of Trabuco Canyon, along the trail in the switchbacks (Santiago Peak 7.5'Q) 975 Comment
  SD239801  Monardella hypoleuca subsp. intermedia A. C. Sanders, Mark A. Elvin 2005-9-2 31613 Orange Santa Ana Mountains: near head of Holy Jim Canyon, a major tributary of Trabuco Canyon, along the trail in the switchbacks, below the towers on Santiago Peak (Santiago Peak 7.5'Q) 997 Comment
  RSA539388  Monardella lanceolata var. lanceolata Fred M. Roberts, Carol A. Roberts 1988-6-10 4092 Orange Santa Ana Mountains: Main Divide Truck trail, Modjeska Peak, west slope, 1.1 km SW summit. 1524 Comment
  RSA401585A  Monardella lanceolata var. lanceolata Claire Kibbe 1936-07 s.n. Orange Santa Ana Canyon. 762 Comment
  RSA7408  Monardella macrantha subsp. hallii Carl B. Wolf 1933-8-24 5406 Orange Santa Ana Mountains:along main divide motorway on west slope of Modjeska Peak 1372 Comment
  IRVC26748  Moraea tricolor Mark A. Elvin, J. Liou, J. Carpenter, J. Nguyen 2004-3-8 3178 Orange UCI Arboretum Southern Coastal 15 Comment
  POM147619  Muhlenbergia asperifolia F. M. Reed 1927-9-19 5470 Orange Santa Ana Canon Highway at Peralta Heights 91 Comment
  UCR2780  Muhlenbergia asperifolia F. M. Reed 1927-9-19 5470 Orange Near Peralta Heights 91 Comment
  CAS-BOT-BC275294  Muhlenbergia microsperma John Thomas Howell 1927-6-5 2436 Orange Santa Ana Canon, N side 152 Comment
  RSA684334  Muhlenbergia microsperma Scott D. White, Amanda Duchardt 2003-4-10 9015 Orange Ridges & east-facing canyons above Trampas Canyon. 122 Comment
  UCD86852  Muhlenbergia microsperma Elizabeth Wilson 1940-5-24 s.n. Orange Laguna beach to Santa Ana. Comment
  UCR190991  Muhlenbergia microsperma A. C. Sanders, Fred M. Roberts 2008-4-22 35009 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hicks Canyon haul road, just above Irvine Ranch gate and road to cement plant, c. 1 mile NE of Rattlesnake Reservoir 244 Comment
  RSA696203  Myosotis arvensis Virginia Pritchard, Ruth Greenwald 1938-05 s.n. Orange Santa Ana. Comment
  RSA0043357  Nama stenocarpa Fred M. Roberts, Laura Cohen 2012-10-31 7714 Orange San Joaquin Hills. Upper Laguna Lake, north end. Laguna Coast Wilderness Park, c. 5.1 km east northeast of Signal Hill. 113 Comment
  RSA799944  Nama stenocarpa Justin M. Wood 2011-6-28 4309 Orange South Coast: City of Costa Mesa; Fairview Park, just WNW of Marison Special Education Center. 24 Comment
  UCR247878  Nama stenocarpa Fred M. Roberts, Laura Cohen 2012-10-31 7714 Orange San Joaquin Hills, Upper Laguna Lake, north end. Laguna Coast Wilderness Park, c. 5.1 km east northeast of Signal Hill 113 Comment
  RSA681020  Nassella cernua Fred M. Roberts, David E. Bramlet 2003-3-13 5586 Orange Donna O'Neill Land Conservancy: Ridge west of Christianitos Canyon, 1.6 km NW Sycamore Gate., (33 deg 29'37N, 117 deg 34' 16 W [UTM: 11S-04 46 936mE, 37 05 965mN.] 207 Comment
  RSA450846  Nassella lepida Fred M. Roberts 1983-3-10 886 Orange Dana Point headlands, S of Scenic Dr, 0.3km W Dana Point Harbor, 0.8km S Richard Henry Dana School. 45 Comment
  POM147646  Nassella pulchra F. M. Reed 1927-04 5474 Orange Cliff at Beach. 15 Comment
Read comments
Nov 4 2017
  UCD87644  Nassella pulchra R. M. L. 1942-4-15 7 Orange north slope. Moulton Ranch. Comment
  RSA443822  Nasturtium officinale Gordon Marsh 1975-7-28 s.n. Orange Huntington Beach: East Garden Grove-Wintersburg Flood Control Channel, just N of Warner St. bridge crossing, (No. C05) Comment
  RSA697462  Nasturtium officinale R. H. McArthur 1934-4-2 s.n. Orange Wintersburg drainage ditch. In shallow water. Comment
  RSA759149  Navarretia atractyloides Robt. Allen, D. Taylor 2008-7-19 s.n. Orange Along North Main Divide Road, 0.2 road miles S of junction with Bedford Rd, 3.5 road miles N of junction with Maple Springs Road, 0.84 air miles WNW of Bald Peak. Labeled on USGS Topo map as Water Tank, near BM 3702. 1142 Comment
  CAS-BOT-BC140681  Nemacaulis denudata var. denudata O. F. Clarke 2003-5-7 s.n. Orange South Coast: Least Tern Reserve, just north of the mouth of the Santa Ana River, Huntington Beach 4 Comment
  UC2030080  Nemacaulis denudata var. denudata Valerie Soza, K. Clark, LeRoy Gross, Will Miller, Fred M. Roberts, G. D. Wallace 2001-4-4 1131 Orange Bolsa Bay / Bolsa Chica Beach: Bolsa Chica Beach State Park and Bolsa / Chica Ecological Reserve Boundary, alongside Pacific Coast Highway. Comment
  UC536919  Nemacaulis denudata var. denudata Lawrence M. Booth 1932-5-27 1132 Orange Newport Beach Comment
  RSA758015  Nemacladus ramosissimus D. E. Bramlet 2008-5-28 4282 Orange Bee Cyn., Bowerman landfill site, 468m S Bee Cyn access road & 434m W of the active landfill. Comment
  UCR191357  Nemacladus ramosissimus A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34643 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
  IRVC148  Nephrolepis cordifolia Lorraine Aldis 1965-3-30 HS 542 Orange Costa Mesa; Senate Street. Southern Coastal Comment
  RSA648655  Nerium oleander R. E. Riefner 2000-8-23 20 -730 Orange NCCP North Ranch Policy Plan Area. Fremont Canyon: N. of Santiago Creek & immediately S. of major stream fork 305 Comment
  RSA733734  Nicotiana bigelovii Gray s.n. Orange Orange Park Hill Comment
  HSC21278  Nicotiana glauca J. J. Wagoner 1965-4-11 15 Orange 6 mi. N of Modjeska Canyon near Irvine Lake off of Irvine Rd. 152 Comment
  RSA0028716  Nicotiana glauca Mark Breidenbaugh, Caralisa Breidenbaugh 1992-5-15 22 Orange 1.2 mile south of Chino Hills State Park. 168 Comment
  RSA0060156  Nicotiana quadrivalvis Fred M. Roberts 1999-4-21 5177 Orange Lomas de Santiago: Loma Ridge, ridges north of Dripping Springs Cyn., 1.5 km W Silverado Sch. and 4.8 km NNW Bolero Lookout. 365 Comment
  SEINET7067536  Nicotiana quadrivalvis A. G. Vestal 1947-6-12 s.n. Orange Santa Ana River Wash northwest of Orange. Coordinate datum: NAD27. UTM Zone 11, 418667mE, 3739612mN. Comment
  RSA5813  Nitrophila occidentalis C. B. Wolf 1932-6-28 3805 Orange Bryant Ranch: Edge of field on Bixby Ave., 300 ft. east of SW corner of NW1/4 of NE 1/4 of Sec. 33. 9 Comment
  RSA594801  Nolina cismontana Fred M. Roberts, Nowak 1992-2-26 4836 Orange Santa Ana Mts. Ridge west of Black Star Canyon and north of confluence of Black Star Canyon and Santiago Canyon, 4.3 km ESE Irvine Lake spillway. 353 Comment
  RSA0051415  Nolina parryi R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49684 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. 457 Comment
  CDA25248  Nothoscordum gracile A. C. Sanders 2008-7-3 35714 Orange Peninsular Range; Santa Ana Mountains; Lomas de Santiago, Santiago Canyon near mouth of Limestone Canyon at Agustine Staging Area. Comment
  UCSB47625  Nuttallanthus texanus Roberts, Fred 1980-4-3 Orange Hills, 1.0km NE Dana Hills High School; Dana Point 75 Comment
  UCR189550  Nyctocereus serpentinus Fred M. Roberts, R. L. Allen 2007-9-28 6615 Orange Santa Ana Mountains, Silverado Canyon, along Silverado Canyon Rd. at eastern edge of town of Silverado 347 Comment
  CAS-BOT-BC171488  Oenothera californica Carl B. Wolf 1936-6-12 7944 Orange 1 mi. E. of Atwood 91 Comment
  POM200890  Oenothera californica Carl B. Wolf 1931-3-25 1935 Orange along Santa Fe R. R, 1 mile west of Atwood. 91 Comment
  POM3074  Oenothera californica P. A. Munz 4117 Orange Anaheim. Comment
  RSA718962  Oenothera elata Fred M. Roberts, Robert L. Allen 2006-10-8 6418 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
  UCR237928  Oenothera elata Dick Newell, Don Millar 2012-6-5 273 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Creek streambed at Hangmans Tree Rd. crossing 361 Comment
  UC1007125  Oenothera elata subsp. hookeri P. A. Munz 1938-6-23 15569 Orange 1 mi below Capistrano; San Juan Creek Comment
  POM279574A  Opuntia X occidentalis Lyman Benson 1950-4-29 14339 Orange South end of San Clemente. Hill 1/2 mile from ocean. 152 Comment
Read comments
Oct 21 2009
  POM288521  Opuntia X occidentalis Lyman Benson 1955-10-17 15597 Orange Moulton Ranch just west of the summit east of Laguna Beach. 152 Comment
  IRVC26536  Opuntia cholla Mark A. Elvin 2004-5-22 3454 Orange UCI Arboretum Southern Coastal 15 Comment
  POM317068  Opuntia littoralis David Walkington 1963-2-7 67 Orange West side of N Euclid Ave. north of Sunny Hills West Home, Fullerton. 76 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
  RSA6608  Opuntia oricola B. D. Stark 1933-1-26 4527 Orange Rancho Santa Ana. Comment
  RSA6610  Opuntia oricola B. D. Stark 1933-1-21 4520 Orange San Clemente. 15 Comment
  RSA0066512  Orobanche fasciculata Le Roy Abrams 1901-6-15 1847 Orange Santiago Peak. Comment
  RSA590943  Orthocarpus purpurascens Fred M. Roberts Jr. 1991-5-2 4784 Orange San Joaquin Hills: Laguna Canyon, Laguna Laurel, just west of Laguna Canyon Road. c.a. 2 km N jct. El Toro Road, 4.5 km E Signal Peak; 110 Comment
  UC171038  Osmadenia tenella H. M. Hall 1913-5-28 9406 Orange Santiago Canyon Comment
  RSA160508  Osmorhiza brachypoda J. D. Olmsted 1959-4-23 464 Orange Spring Trail at Beacon Pines Ranch; 9 miles SW of Corona. 762 Comment
  IRVC29885  Osteospermum ecklonis Mark A. Elvin, D. Kelch, Barry S. Nerhus, Patricia Iluore 2006-12-9 5326 Orange Newport Backbay; along Bayside Drive ca. 100 m W of Eastbluff Dr. Southern Coastal 5 Comment
  POM353432  Oxalis albicans subsp. californica Carl B. Wolf 1931-3-6 1858 Orange Trabuco Canyon, 1.5 mile below Trabuco Camp Grounds 549 Comment
  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
  SD72767  Oxalis californica F. R. Fosberg 1931-6-21 S 5097 Orange Santa Ana Mountains, Silverado Canyon, on canyon floor Comment
  UCR10199  Oxalis californica Diane Terrel 1969-5-6 s.n. Orange Peninsular range; Santa Ana Mtns., Tucker Bird Sanctuary northeast of El Toro in Modjeska Canyon 427 Comment
  UCR103787  Oxalis californica Scott D. White 1997-2-19 4698 A Orange Santa Ana Mtns, above Modjeska Canyon; proposed water tank site 488 Comment
  UCR261709  Oxalis californica Dick Newell, Judy Booth 2015-2-22 390 Orange Peninsular Range; Santa Ana Mtns. Foothills, Caspers Wilderness Park, on Caspers Park Rd. about 3/4 mile NW of Rangers Hqtrs. 137 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
  UCR227627  Oxytheca trilobata Robt. L. Allen 2003-6-22 12281 Orange Santa Ana Mountains, along North Main Divide Road, 6.3 road mi north of Falcon Group Campground, c. 2.43 air mi northwest of Los Pinos Saddle 1334 Comment
  HSC88192  Paeonia brownii R. E. Nelson, T. Baumann, Kondratieff, T. Sargent 1988-1-12 5117 Orange San Juan Creek at the Lower San Juan Campground, Cleveland National Forest. 366 Comment
  CAS-BOT-BC121213  Paeonia californica C. B. Wolf 1936-6-17 7949 Orange Santa Ana Mtns, along Ortega Hwy, 6/10 mi. below San Juan Hot Springs. 182 Comment
  RSA162751  Paeonia californica J. D. Olmsted 1958-3-4 19 Orange Small pond with westward drainage into Irvine lake, 250yards. West of Oak Flat fire road intersection, which is 9 miles southeast of Corona in Santa Ana Mts. 793 Comment
  UCSB41782  Paeonia californica Soper, Robert 1971-2-27 Orange Trabuco Cyn ca 2 mi. from paved road turn-off 365 Comment
  UCR241101  Pallenis maritima R. E. Riefner Jr. 2011-6-25 11- 74 Orange South Coast, city of Laguna Beach, Moss Point, vicinity of Ocean Way at Ruby Street 7 Comment
  RSA715697  Panicum capillare Fred M. Roberts, Chris M. Barnhill 2005-9-27 6278 Orange San Juan Capistrano: San Juan Creek wash, east of La Novia Road bridge, 1.4km E Mission San Juan Capistrano, 27 Comment
  SEINET11261327  Panicum miliaceum A. C. Sanders, Fred M. Roberts 2008-7-16 35865 Orange Peninsular Range, Santa Ana Mountains, Lomas de Santiago, Santiago Creek wash at and above the confluence of Hangmans Tree Canyon (El Toro 7.5' Q).; 0 358 Comment
  SEINET6655641  Panicum virgatum R. E. Riefner Jr. 2006-10-8 06 -482 Orange City of Irvine, San Diego Creek near 405-Freeway.; 0 49 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
  RSA5927  Parietaria hespera var. hespera Carl B. Wolf 1932-7-2 3826 Orange Carbon Canyon, 1/8 mile below La Vida Springs 213 Comment
  RSA0026252  Parthenocissus vitacea Fred M. Roberts 2013-6-12 7798 Orange Peninsular Ranges: Santa Ana Mtns: Lower Silverado Canyon along Silverado Creek on north side of Silverado Canyon Road, 0.6 kilometers ENE Silverado School and 1.4 kilometers up stream Black Star Road Crossing. 320 Comment
  UCR16077  Paspalum dilatatum N. J. Moriarty 1973-5-26 730526- 01 Orange South Coast, Huntington Beach, vacant lot at the corner of Beach Blvd. and Memphis Avenue 15 Comment
  RSA697733  Paspalum distichum Anonymous 1930-1 2 Orange Bed of Santa Ana river west of Town. Moist sand Comment
  OBI74937  Paspalum vaginatum Unknown 2008-7-29 08 -257 Orange City of Dana Point near Ritz-Carlton Hotel, Salt creek beach area 0 Comment
  RSA733138  Paspalum vaginatum R. E. Riefner 2007-10-17 7 -439 Orange City of Dana Point, Dana Point Harbor, Dana Point Harbor Dr. near Puerto Pl. 10 Comment
  SBBG132293  Paspalum vaginatum R. E. Riefner Jr. 2008-8-31 08 -267 Orange San Diego Crk, E side of Hwy. 73 overpass; Irvine 0 Comment
  SBBG133655  Paspalum vaginatum R. E. Riefner Jr. 2008-8-31 08 -267 Orange tidal portion of San Diego Crk, immediately E of Hwy 73 overpass; Irvine 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
Read comments
Jul 30 2010
  UCSB15065  Pedicularis densiflora Breedlove, Dennis 1962-3-9 Orange 14.3 miles east of San Juan Capistrano on State 74 335 Comment
  RSA710818  Pelargonium A. C. Sanders, Mark A. Elvin 2003-10-12 27314 Orange Southern Coastal Slope: Irvine, UCI Arboretum, UCI campus near intersection of Jamboree Blve. and Campus Dr. 15 Comment
  CAS-BOT-BC67762  Pellaea andromedifolia Ira L. Wiggins 1966-2-4 20420 Orange Among rocks on floor of Trabuco Cnayon, about 1/2 mile above canyon mouth. Comment
  RSA699317  Pellaea andromedifolia Fred M. Roberts, D. E. Bramlet 2003-5-1 5695 Orange Rancho Mission Viejo; Donna O'Neil Land Conservancy, Cristianitos Cyn., 0.56 km SSW Gato Gate and 0.21 km W of Cristianitos Rd. 110 Comment
  RSA747624  Pellaea andromedifolia Fred M. Roberts 2008-4-16 6908 Orange Dana Point: Dana Point Headlands, CNLM Preserve, 0.8km W Marine Institute, Dana Point Harbor. 45 Comment
  UC185251  Pellaea andromedifolia Mrs. Carlotta C. Hall 1913-5-27 9407 Orange Santiago Canyon Comment
  UCR97819  Pellaea andromedifolia Scott D. White 1997-3-28 4835 Orange Santa Ana Mountains, Above Modjeska Canyon, proposed water tank site. 488 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
  RSA124717  Pellaea andromedifolia var. andromedifolia E. K. Balls, Percy C. Everett 1957-11-25 22840 Orange Upper Trabuco Canyon, 2.2 mi. ne. from entrance to Holy Jim Canyon, 990 Comment
  RSA640077  Pellaea andromedifolia var. andromedifolia E. Robinson, Crocker 1916-3-29 s.n. Orange Santa Ana Mts. Miller's Canyon, near Murrietta. Comment
  RSA731966  Pennisetum setaceum A. Sanders 2008-4-29 35138 Orange Lomas de Santiago, western end of Loma Ridge on road to shriff's training facility, c. 1.5mi SW of Santiago Reservoir. 335 Comment
  IRVC29788  Pennisetum setaceum Mark A. Elvin, Dean Kelch 2006-12-9 5311 Orange Irvine; San Diego Creek, edge of San Joaquin Marsh, beside University Dr., between Campus Dr. and Hwy 73. Southern Coastal 3 Comment
  UC718211  Penstemon laetus var. laetus Carl B. Wolf 1936-4-28 7778 Orange Santa Ana Canyon Botanic Garden s Adm. Bldg. (Rancho Santa Ana); , Santa Ana Canyon Botanic Garden 198 Comment
  RSA401836  Penstemon spectabilis F. R. Fosberg 1931-6-21 S- 5085 Orange Lower Santiago Canyon. Comment
  CAS-BOT-BC330343  Pentachaeta aurea P. C. Everett 1935-4-22 6463 Orange Santa Ana Canyon, 0.25 mi W of Horseshoe Bend 121 Comment
  RSA696850  Pentachaeta aurea Mabel Harvey s.n. Orange Trabuco Canyon. Comment
  RSA702683  Pentachaeta aurea Scott D. White, Michael Honer 2004-5-17 10397 Orange South Coast: City of Laguna Niguel. Ridges and open slopes directly north of the intersection of Crown Valley Parkway and Pacific Island Dr. 61 Comment
  RSA759154  Pentachaeta aurea subsp. allenii Robt Allen 2008-3-30 s.n. Orange San Joaquin Hills, Laguna Coast Wilderness Park, along Stagecoach South Trail, about 0.25 air mile S of trailhead near the Nix Nature Center. 163 Comment
  RSA0060347  Pentagramma triangularis Gary D. Wallace, G. Cromwell 1966-4-16 459 Orange W edge of Cleveland Nat. For. about 5 mi. E of San Juan Capistrano, in the Santa Ana Mountains, in Hot Springs Canyon. Comment
  IRVC20439  Pentagramma triangularis subsp. triangularis Fred M. Roberts, K. G. Marsh 1983-5-26 1093 Orange Dana Point Headlands: 0.5km W Dana Point Harbor; 0.8km SSW Richard Henry Dana School Southern Coastal 82 Comment
  POM184311  Perideridia gairdneri subsp. gairdneri L. M. Booth 1932-8-5 1354 Orange Lomita Land Co. Comment
  SFV16195  Peritoma arborea R. K. Stachelek, B. Anderson, F. Schropshire 1995-3-1 39 Orange Newport Beach, Upper Newport Bay on Back Bay Drive about 0.5 miles north of Shellmaker Island. Mesic roadside at base of coastal bluff adjacent to semi-disturbed coastal sage scrub area. Comment
  UCSB44694  Peritoma arborea Hibbard, Doug 1977-3-4 Orange Off immediate south side of Back Bay Rd., 0.7 miles from crossing Jamboree Blvd. Comment
  SD145971  Peritoma arborea var. globosa R. D. Goeden, D. W. Ricker 1965-6-21 Orange Dana Point 60 Comment
  SEINET1907075  Persea steyermarkii R. W. Scora 1997-1 5146 Orange Zentmyer Avocado Collection, Field 3, South Coast Field Station, Irvine . 21 Comment
  UCR240105  Persicaria lapathifolia Dick Newell, Judy Booth 2012-9-3 284 Orange South Coast, Irvine, San Diego Creek under Campus Drive overcrossing 4 Comment
  RSA17192  Phacelia brachyloba Percy C. Everett 1935-7-11 7267 Orange Santa Ana Mts, Main Divide Motorway, 1.7miles N of Jct with Trabuco Can road. 1220 Comment
  RSA595  Phacelia cicutaria var. hispida J. T. Howell 1927-6-5 35 Orange Rancho Santa Ana, near east boundary. 152 Comment
  RSA647938  Phacelia cicutaria var. hispida Mark Breidenbaugh, Caralisa Breidenbaugh 1992-5-15 26 Orange 1/2 mile south of Chino Hills State Park. 168 Comment
  RSA734814  Phacelia cicutaria var. hispida A. C. Sanders, Fred M. Roberts 2008-3-25 34575 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
  RSA426058  Phacelia davidsonii M. B. Dunkle 1935-2-10 4334 Orange Laguna Creek; Coastal Southern California. 61 Comment
  POM289796  Phacelia distans Lyman Benson 1932-3-26 3197 Orange Dana Point. 61 Comment
  RSA0041601  Phacelia distans Albert J. Perkins 1913-4-22 s.n. Orange Trabuco Canyon. Comment
  UCR191321  Phacelia hubbyi A. C. Sanders, Fred M. Roberts 2008-4-8 34745 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, head of Hicks Canyon, S of Santiago Reservoir 351 Comment
  CHSC42166  Phacelia minor L. A. Hinman 1986-3-22 1 Orange Ca. 6 mi nw of San Juan Capistrano, in Bell Canyon, 2 mi n of hwy 74. Ca. 25 ft e of Bell Creek. 128 Comment
  UCR193824  Phacelia minor A. C. Sanders, Fred M. Roberts 2008-7-16 35873 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Creek wash at and above the confluence of Hangmans Tree Canyon 370 Comment
  HSC13724  Phacelia parryi S. M. Clapp 1966-4-7 15 Orange 3 mi. from Modjeska Canyon towards Silverado Canyon 152 Comment
  POM49699  Phacelia parryi Helen D. Geis 1902-1 511 Orange Santiago Canyon, Orange County. Comment
  POM6467  Phacelia parryi P. A. Munz, L. T. Street, Williams 1919-5-3 2639 Orange Santa Ana River Canyon Comment
  UCR191343  Phacelia parryi A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34620 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
  RSA699775  Phacelia parryi Keith E. Hoffmaster 1937-4-25 s.n. Orange Ladd can., Santa Ana Mts. Comment
  UCSB48216  Phacelia ramosissima Roberts, Dar; Roberts, Jr., Fred 1983-5-3 Orange Santa Ana Mtns.; Hot Springs Canyon, 0.5 km. by road N of Cal. Rte. 74 (San Juan Guard Sta.) 238 Comment
  POM202028  Phacelia ramosissima var. austrolitoralis L. M. Booth 1932-5-19 1060 Orange Alluvial flat near Balboa Island Bridge. Newport Bay. Comment
  UC537166  Phacelia ramosissima var. austrolitoralis L. M. Booth 1932-5-19 1060 Orange Newport Bay Comment
  RSA738990  Phacelia viscida Minor Warne 1934-3-17 s.n. Orange Gypsum Canyon Comment
  IRVC18590  Phalaris aquatica Karlin G. Marsh 1980-8-13 s.n. Orange S of Trabuco Canyon, Sect. 12, Hinricks Parcel. Santa Ana Mountains Comment
  IRVC27530  Phalaris canariensis Mark A. Elvin 2004-5-2 3422 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7km (air) NNW UC Irvine campus center. Southern Coastal 3 Comment
  RSA696380  Phalaris canariensis Keith E. Hoffmaster 1927-4-26 s.n. Orange Santa Ana. Comment
  UCR102004  Phalaris minor B. G. Pitzer 1997-3-25 3038 Orange San Joaquin Hills, Crystal Cove State Park, Pelican Point Area, on bluffs immediately above beach, along trail that winds around restoration area and down to beach. 30 Comment
  UCR97073  Phalaris minor Scott D. White 1993-4-28 1286 Orange Pacific slope, Tustin Marine Corps Air Station, NW of Peters Canyon Channel, between Moffett Dr. & Warner Comment
  RSA5942  Phalaris minor C. B. Wolf 1932-7-7 3854 Orange Bixby Ave. 0.3 mile east of Los Alamitos Blvd. (250 ft E of SW corner of NE/4 of NE/4 of Sec 31 T4S R11W) 8 Comment
Read comments
Apr 10 2014
  RSA627786  Phalaris paradoxa Scott D. White 1998-6-26 6786 Orange South Coast: Univ. of Calif. Irvine Campus. Along mapped intermittent blueline stream just N of Bonita Cyn Dr. 61 Comment
  UCR133164  Phlox gracilis Adrian Wolf 2000-4-7 452 Orange Santa Ana Mtns., North Ranch Policy Plan Area, North Fremont Canyon, 3 km NNE of canyon mouth 408 Comment
  UCR888  Pholistoma auritum S. M. Chambers 1970-5-3 13 Orange Carbon Canyon Road, 2 mi SE of La Vida Mineral Springs Comment
  UCSB44692  Pholistoma auritum Hibbard, Doug 1977-3-4 Orange Off the south side of Back Bay Rd., 0.7 miles from its crossing with Jamboree Blvd., New Port Beach 4 Comment
  CAS-BOT-BC222602  Pholistoma auritum var. auritum John Thomas Howell 1927-6-17 s.n. Orange Santa Ana Canon [Canyon] 152 Comment
  RSA734206  Phoradendron macrophyllum Keith E. Hoffmaster 1934-4-22 188 Orange Santa Ana Mountains Comment
  UCR145988  Phoradendron tomentosum June Latting 1977-1-12 s.n. Orange Chino Hills, Tonner Canyon 213 Comment
  UC536905  Phyla lanceolata Lawrence M. Booth 1932-7-1 1238 Orange Anaheim Meadows Comment
  RSA683932  Phyllospadix scouleri E. Yale Dawson 1957-2-14 16149 Orange Laguna Beach, Orange County Comment
  RSA683934  Phyllospadix scouleri E. Yale Dawson 1957-2-14 16129 Orange Laguna Beach, Orange County Comment
  RSA682950  Phyllospadix torreyi E. Yale Dawson 1957-11-23 17817 Orange Corona del Mar, Orange, Co. Comment
  UC813911  Phyllospadix torreyi F. R. Fosberg July, 1928 S 1525 Orange Laguna Beach Comment
  UCR19761  Phyllospadix torreyi F. M. Reed 1932-5-24 7233 Orange South Coast, San Juan Capistrano, behind beach dune Comment
  CAS-BOT-BC452025  Phyllospadix torreyi I. M. Johnston 1915-9-3 s.n. Orange Laguna Beach Comment
  SD43531  Physalis philadelphica P. A. Munz 1946-11-7 11607 Orange near Administration Building, Rancho Santa Ana Botanic Garden, Santa Ana River Canyon 198 Comment
  IRVC21696  Picris echioides Fred M. Roberts 1984-8-6 1367 Orange UC Irvine, along Adobe Circle Road, 0.9km ENE campus center; 2.3km W French Hill, Irvine 30 Comment
  POM17438  Picris echioides P. A. Munz 1923-4-1 6595 Orange Laguna Lakes. 61 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
  RSA802000  Picris echioides Kenneth Beard 1934-02 s.n. Orange Beside irrigation ditch near Hewes Park Comment
  RSA799946  Pilularia americana Justin M. Wood 2011-4-12 3658 Orange South Coast: City of Costa Mesa. Fairview Park, just WNW of Marison Special Education Center. 24 Comment
  OBI6107  Pinus attenuata Carl B. Wolf 1934-12-21 6259 Orange S slope of main ridge, saddle NW of Sugarload Pk (Pleasants pk) 1-3/10 mi S of summit of Skyline Dr, Santa Ana Mts 1158 Comment
  SEINET10879506  Pinus attenuata Andrew Townesmith, Karen M. Meyer; Tracy Scott 2007-3-11 Townesmith 677 Orange Cleveland National Forest. Off Long Canyon Road (Forest Service road 6S05). Near entrance to Falcon Group Camp. 1000 Comment
  RSA0027777  Pinus attenuata Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49694 Orange Northern Santa Ana Mountains: Sierra Peak Comment
  SD247530  Pinus attenuata R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49694 Orange Northern Santa Aana Mountains: Sierra Peak. Comment
  IRVC2815  Pinus coulteri A. S. Boughey 1965-3-16 58 Orange Santa Ana Mtns: Silverado Cyn. Peninsular Ranges Comment
  UCSB41932  Pinus coulteri Ramirez, Richard 1971-3-29 Orange About 8 mi. inland on Saddleback Canyon Rd., from Tucker Wildlife Sanctuary Comment
Read comments
May 8 2015
  UCR186587  Pinus halepensis Robert DeRuff 1995-9-24 240 Orange Southern Coast, Newport Beach, Newport Back Bay, Eastbluff 6 Comment
  UCR231188  Pinus sabiniana A. C. Sanders, T. B. Salvato, Kent Beaman 2011-11-3 39944 Orange Peninsular Range; Santa Ana Mountains, Beek's Place on Main Divide Truck Trail 863 Comment
  RSA758896  Piptatherum miliaceum A. C. Sanders, T. B. Salvato 2008-5-13 35352 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
  UCSB22859  Piptatherum miliaceum Booth, Lawrence 1932-6-7 Orange Balboa Island, Newport Bay Comment
  CDA2639  Pistia stratiotes M. Nolan 1981-5-19 Orange Central Park Lake, Huntington Beach. 0 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
  SD27970  Plagiobothrys collinus var. californicus Carl B. Wolf 1932-3-14 2710 Orange Rancho Santa Ana Botanic Garden 630 Comment
  UC1929780  Plagiobothrys nothofulvus Scott D. White, Amanda Duchardt 2003-3-27 8858 Orange SANTA ANA MOUNTAIN FOOTHILLS: Canyon bottom and west facing slopes above Canada Gobernadora. Comment
  UCR191013  Plagiobothrys nothofulvus A. C. Sanders, Fred M. Roberts 2008-4-22 35030 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Limestone Canyon, c. 2 miles SW of Silverado 396 Comment
  UCSB14544  Plagiobothrys nothofulvus Breedlove, Dennis 1962-3-9 Orange 4.4 miles east of San Juan Capistrano on State 74 112 Comment
  RSA0054889  Plagiobothrys nothofulvus Keith E. Hoffmaster 1932-2-28 67 Orange Santa Ana Mts. 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
  RSA747635  Plantago erecta Fred M. Roberts 2008-5-16 6982 Orange Dana Point: Dana Point Headlands, CNLM Preserve, north of Marguerita Drive, 0.5 km WNW Marine Institute, Dana Point Harbor. 75 Comment
  UC1618039  Plantago erecta Donald G. Nelson 1935-4-14 282 Orange Near Pacific Electric Railway Station. Newport Beach Comment
  UCSB56505  Plantago erecta Marsh, K. 1978-3-16 Orange Irvine Ecological Preserve; Hill #1 57 Comment
  POM260478  Plantago indica Ella Carter 1941-08 1 Orange Near fish canneries, not far from 29th str, Newport Beach. 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
  RSA698380  Plantago lanceolata C. H. Mueller 1932-6-2 s.n. Orange Cor. Almond + Pine-Orange along roadside. Comment
  RSA683234  Plantago major Scott D. White, Matt Carlton 2003-11-20 9870 Orange Santa Ana Mountain foothills; San Juan Creek in San Juan Capistrano; (Dana Point) 24 Comment
  UCR228811  Plantago major Dick Newell, Don Millar 2011-7-19 207 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Dripping Springs 392 Comment
  RSA4836  Plantago major James Snow 1932-1 s.n. Orange Bryant Ranch, Long Beach, Station 2, plant 1 Comment
  RSA5949  Plantago major Carl B. Wolf 1932-7-7 3861 Orange Opposite the Bryant Ranch: on N side of Bryant Avenue, 0.5 mile east of Los Alamitos Boulevard near Los Alamitos. 8 Comment
Read comments
Apr 8 2014
  RSA791464  Plantago major Keith E. Hoffmaster 1927-5-22 955 Orange Near Santa Ana. CP3. Comment
  RSA763  Plantago ovata var. fastigiata J. T. Howell 1927-6-9 70 Orange Botany Garden, Rancho Santa Ana. [original location] 152 Comment
  RSA542455  Plantago rhodosperma Fred M. Roberts, Karlin G. Marsh 1988-4-25 3931 Orange San Joaquin Hills: East flank Pelican Hill, 0.9 kilometer SE summit. 120 Comment
  RSA698371  Platanus racemosa Minor Warne 1934-03 s.n. Orange Gypsum canyon Comment
  RSA725469  Platanus racemosa Fred M. Roberts, Megan Lulow 2007-7-30 6549 Orange Fremont Canyon, 1.3 km NE Irvine Lake spillway, North Irvine Ranch Policy Area. 253 Comment
  RSA731911  Platanus racemosa Fred M. Roberts, Sandy Leatherman 2007-11-27 6668 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
  SD236359  Platanus racemosa A. C. Sanders, Fred M. Roberts 2008-6-17 35471 Orange Peninsular Range; Santa Ana Mountains: Lomas de Santiago, Agustine staging area near Limestone Canyon Road gate at Santiagon Cyn Rd. 259 Comment
  UCR237925  Platanus racemosa Mark A. Elvin 2003-2-2 2278 Orange South Coast, San Joaquin Marsh, UCI campus SSE of intersection of Jamboree Blvd. and Campus Dr. 2 Comment
  RSA722433  Platystemon californicus L. C. Hull 1934-3-11 s.n. Orange Ortega Highway. Comment
  RSA747622  Platystemon californicus Fred M. Roberts 2008-4-16 6910 Orange Dana Point: Dana Point Headlands, CNLM Preserve, 0.8 km W Marine Institute, Dana Point Harbor. 45 Comment
  CAS-BOT-BC226913  Plecostachys serpyllifolia R. E. Riefner, Jr. 2011-6-25 11 -73 Orange City of Laguna Beach, Moss Point, vicinity of Ocean Way at Ruby St. 6 Comment
  OBI74940  Plecostachys serpyllifolia Unknown 2006-7-26 06 -319 Orange City of Irvine, N side of Irvine Blvd. at SR133 on ramp 64 Comment
  RSA731530  Plecostachys serpyllifolia R. E. Riefner 2006-7-26 06 -319 Orange City of Irvine, along N side of Irvine Blvd. at SR 133 on-ramp. 62 Comment
Read comments
Dec 13 2012
  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
  RSA751480  Plecostachys serpyllifolia R. E. Riefner Jr. 2008-10-22 08 -308 Orange City of Laguna Beach, ocean bluff vicinity of West St. and Pacific Coast Highway. 4 Comment
  RSA766076  Plecostachys serpyllifolia R. E. Riefner Jr. 2004-12-30 04 -681 Orange City of Laguna Beach, vicinity of West St. and Pacific Coast Hwy. 4 Comment
  RSA801997  Plectritis ciliosa Keith E. Hoffmaster 1935-5-5 971 Orange San Juan Canyon., Santa Ana Mts. Comment
  RSA528043  Pluchea odorata A. C. Sanders 1990-10-6 10185 Orange Newport Bay, North Star County Beach area on the SW end of the bay, ca. 2 km inland of Hwy 1 1 Comment
  RSA708731  Pluchea odorata Fred M. Roberts, Robert L. Allen, Chris M. Barnhill 2004-8-21 6114 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
  UCSB48039  Pluchea odorata Roberts, Jr., Fred 1981-9-26 Orange Newport Beach; Pacific Coast Highway, 0.3 km. W Newport Blvd.; 0.4 km. SE Bench Mark 10 3 Comment
  RSA160418  Pluchea odorata J. D. Olmsted 1959-9-22 981 Orange Along Santa Ana River N of Sycamore Park along Hwy. 8-9mile WSW of Corona, betw Santa Ana Mts and Puente Hills to Pacific Ocean 137 Comment
  JEPS30711  Pluchea odorata var. odorata Peter H. Raven 1961-10-15 16855 Orange just n of U.S. Highway 91 along dyke along road to Yorba Linda 114 Comment
  RSA785323  Pluchea sericea Dick Newell, Don Millar 2010-4-27 020 Orange Lomas de Santiago, Agua Chinon wash 1/4 mile north of Hwy 241 toll road 226 Comment
  RSA716662  Plumbago auriculata Fred M. Roberts, Amber Oneal 2004-8-18 6095 Orange San Juan Capistrno: Ortega Ranch Business Center site, between Rancho Viejo Rd. and I-5 freeway adjacent to Horno Creek; 0.6km NE Mission San Juan Capistrano. 54 Comment
  SEINET3123526 Image available Poa annua A. C. Sanders, T. B. Salvato 2008-1 35357 Orange Peninsular Range; Santa Ana Mtns.; Lomas de Santiago, Santiago Canyon above (S of) mouth of Hangman Tree Canyon, just below Modjeska Canyon confluence 366 Comment
  RSA91683  Poa howellii F. W. Peirson 1923-5-6 3491 Orange Trail to Santiago Peak from Holy Jim Canyon. 991 Comment
  IRVC22661  Poa scabrella Fred M. Roberts 1985-5-9 1722 Orange Santa Ana Mountains: Upper McVicker Canyon, 1.8km NE Los Pinos Peak. Peninsular Ranges 1113 Comment
  RSA73  Poa secunda J. T. Howell 1928-2-7 830 Orange Near the ranch houses, Rancho Santa Ana 152 Comment
  RSA731973  Poa secunda A. C. Sanders, Fred M. Roberts 2008-4-8 34764 Orange Peninsular Range; Lomas de Santiago, Loma Ridge, SSE of Santiago Reservoir on Loma Ridge Spur Rd., above Dripping Springs Loop Rd 457 Comment
  UCR138440  Poa secunda R. E. Riefner Jr. 2000-4-15 20- 379 Orange Santa Ana Mtns., North Ranch Policy Plan Area Main Divide Road; south of Gypsum Canyon and south of Windy Ridge 518 Comment
  RSA708363  Poa secunda subsp. secunda Fred M. Roberts, Robert L. Allen, Chris Barnhill, Nancy Hatfield 2005-5-30 6233 Orange west slope of Modjeska Peak, Harding Canyon watershed, Main Divide Road, 0.46km W summit. 1670 Comment
  RSA562742  Polycarpon depressum Steve Boyd 1992-5-19 7438 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of the wilderness in Lucas Canyon from crossing the creek by Lucas Canyon Trail, downstream to confluence with Aliso Canyon. 274 Comment
  IRVC21793  Polycarpon tetraphyllum B. S. Woolfolk 1985-5-12 1 Orange 325 Vista Baya Circle, Costa Mesa 23 Comment
  RSA5379  Polygala cornuta var. fishiae B. D. Stark 1932-12-30 4460 Orange Rancho Santa Ana, 1/4 mile W of Roundtop. 457 Comment
  UCR18431  Polygonum amphibium var. emersum O. F. Clarke 1975-6-27 s.n. Orange San Joaquin Marsh near UCI Comment
  CAS-BOT-BC413753  Polygonum argyrocoleon Carl B. Wolf 1932-9-13 4038 Orange Bryant Ranch: North boundary between Flood Control dike & well in S.E.1/4 Sect. 25; about 1300 ft. W. of N.E. corner of S.E.1/4 Sect. 25 T4S R12W 6 Comment
  SD236380  Polygonum aviculare Jeffrey Ross, R. Zaka 1998-5-2 40 Orange South Coast: North side of San Joaquin hills; William R. Mason Regional Park, near intersection of Yale Ave and University drive. 24 Comment
  UCR195017  Polygonum aviculare A. C. Sanders, Fred M. Roberts 2008-8-7 35972 Orange Peninsular Range; Santa Ana Mtns., lower Weir Canyon, at narrow gorge c. 0.6 mi. above mouth of cyn at Irvine Ranch gate 192 Comment
  UCR46714  Polygonum aviculare B. G. Pitzer, D. C. Hawks 1986-12-17 0380 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
  UCSB48371  Polygonum aviculare Roberts, Fred 1982-5-22 Orange DANA POINT: jct. of Stone Hill and Selva Rds 1.0km ESE Dana Hills High School; 1.7km SW Marco Forster Junior High School 12 Comment
  RSA466307  Polygonum coccineum J. Ewan 1931-7-31 4754 Orange Wesefall near Hungtinton Beach. Comment
  RSA756069  Polygonum hydropiperoides T. B. Salvato, Billy Deane 2006-10-16 1927 Orange Irvine, San Diego Creek flood control channel, between Michelson Driveand the 405 Fwy. 9 Comment
  UC536916  Polygonum lapathifolium Lawrence M. Booth 1932-6-28 1221 Orange Bolsas Marsh Comment
  UC729856  Polygonum lapathifolium Carl B. Wolf 1932-7-7 3835 Orange Bixby Ave. 100 ft w Hansen Road; Bryant Ranch Comment
  RSA594872  Polygonum punctatum Fred M. Roberts, Wayne Ferren, David Bramlet 1991-11-29 4827 Orange Santa Ana Canyon: Featherly Regional Park, Santa Ana River, Horseshoe Bend, c.a. 3.8 km S San Juan Hill. 102 Comment
  IRVC3046  Polypodium californicum A. S. Boughey 1965-3-5 51 Orange Trabuco Canyon. Santa Ana Mountains Comment
  RSA749436  Polypodium californicum Fred M. Roberts 2008-4-14 6890 Orange Santa Ana Mtns.: Upper Weir Cyn., east fork, 3.4 km E Robbers Peak, Irvine Ranch Conservancy. 433 Comment
  IRVC19368  Polypodium californicum R. L. Allen 1977-2-13 s.n. Orange [San Juan Canyon], Ortega Hwy, roadside 111; small side canyon, NW of main canyon. Santa Ana Mountains Comment
  IRVC19535  Polypodium californicum R. L. Allen 1977-2-13 s.n. Orange Viejo Canyon, off Hwy 74, 15.5mi NE San Juan Capistrano; steep, rocky seep above San Juan Creek. Santa Ana Mountains Comment
  IRVC21428  Polypodium californicum A. S. Boughey 1969-3-18 s.n. Orange Ortega Highway; 2mi E of San Juan Guard Station. Southern Coastal Comment
  CAS-BOT-BC232960  Polypogon australis Carl B. Wolf 1932-6-13 3723 Orange Fullerton, Malvern and Nicholas Avenues 53 Comment
  IRVC8601  Polypogon interruptus J. B. Anderson 1966-4-17 Orange Newport Beach: along roadside ditch in field NE of Newport Harbor High School. southern coastal Comment
  IRVC22900  Polypogon monspeliensis Fred M. Roberts 1985-6-12 1903 Orange Laguna Niguel: Alicia Pkwy, 2.1km by road SW La Paz Rd., 1.0km W Sulphur Creek Reservoir. Southern Coastal 67 Comment
  UCD91233  Polypogon monspeliensis A. A. Beetle 1942-4-19 3098 Orange Rt. 101. 5 miles south of Laguna Beach. Comment
  UCR100453  Polypogon monspeliensis B. G. Pitzer 1996-4-30 2773 Orange South Coast, Upper Newport Bay, Calif. Dept. Fish & Game Ecological Reserve, off (W of) Jamboree Road 6 Comment
  UCR154339  Polypogon monspeliensis Mark A. Elvin 2004-5-2 3416 Orange Southern Coastal, Irvine: San Joaquin Freshwater Marsh, near Campus and University Drives; 1.7 km (air) NNW UC Irvine campus center 3 Comment
  RSA696614  Polypogon monspeliensis Rankin s.n. Orange Costa Mesa. Comment
  RSA756311  Polypogon viridis A. C. Sanders, Fred M. Roberts 2008-7-3 35703 Orange Weir Canyon, along Weir Canyon Rd. 1.2 mi. SSE of Walnut Canyon Reservoir, below Upper Blind Canyon Rd. 212 Comment
  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
  RSA542522  Polystichum imbricans subsp. curtum Fred M. Roberts, R. E. Riefner 1988-7-19 4121 Orange Santa Ana Mtns: Modjeska Peak, W slope, along old abandoned road, 0.2 km W summit. 1592 Comment
  CAS-BOT-BC105608  Populus trichocarpa John Thomas Howell 1927-7-21 2809 Orange On edge of marshy place but above water, Santa Ana River bottom, Santa Ana Canyon [Canon] 152 Comment
  LA208544  Populus trichocarpa W. E. Pequegnat; 1937-9-6 sn Orange Santa Ana Mountains, Ortega Rd Comment
  RSA603349  Populus trichocarpa Scott D. White, B. Leatherman 1997-6-12 5327 Orange East of San Juan Capistrano: San Juan Creek between Hwy 74 bridge and Mission Vieja site, i.e., ca. 2 to 4 mi. E of I-15 / Hwy 74 jtn. 46 Comment
  RSA663166  Populus trichocarpa R. E. Riefner 2000-3-26 20 -151 Orange NCCP North Ranch Policy Plan Area. Fremont Canyon: N. of major stream fork along W. channel drainage 335 Comment
  CAS-BOT-BC445243  Portulaca oleracea Ira L. Wiggins 1965-11-3 20313 Orange East side of California State College campus, between State College Blvd and Placentia Avenue, Fullerton. Comment
  RSA184102  Portulaca oleracea I. L. Wiggins 1965-11-7 20360 Orange Vacant lot between State College Blvd. and Troy High School Campus, Fullerton. Comment
  CAS-BOT-BC452122  Potamogeton crispus John Thomas Howell 1928-9-6 4079 A Orange Santa Ana River bottom, Santa Ana Canon [Canyon] 152 Comment
  CAS-BOT-BC453827  Potamogeton nodosus I. M. Johnston 1918-9-3 2144 Orange San Joaquin Hills. In Laguna Canon [Canyon] 106 Comment
  RSA5316  Prunus ilicifolia B. D. Stark 1933-1-5 4499 Orange 2 mi. so. of summit of skyline Drive on road along ridge to Santiago Peak. Santa Ana Mts. 1067 Comment
  LA208150  Prunus ilicifolia subsp. lyonii Donald Lee Johnson; 1965-1 sn Orange San Clemente Island, Reservoir Canyon Comment
Read comments
Jan 29 2015
  JEPS20431  Pseudognaphalium biolettii L. M. Booth 1932-5-19 1067 Orange Newport Bay Comment
  POM358761  Pseudognaphalium biolettii M. B. Dunkle 1933-4-9 3282 Orange Dana Point. Comment
  RSA697115  Pseudognaphalium biolettii Minor Warne 1934-4-14 s.n. Orange Laguna Canyon Forks. Comment
  UCR50083  Pseudognaphalium biolettii B. G. Pitzer, D. C. Hawks 1986-10-21 347 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, c. 10 mi east of Santa Ana, in hills N and east of South Coast Gun Club on Jeffrey Road in Hicks Canyon 183 Comment
  UCR222661  Pseudognaphalium leucocephalum R. E. Riefner Jr. 2008-8-5 08- 259 Orange Peninsular Range; Santa Ana Mtns., Irvine Ranch Reserve, Fremont Canyon Conservation Easement, lower Fremont Canyon, main drainage 223 Comment
  CHSC35335  Pseudognaphalium luteoalbum James Henrickson 1972-10-21 Orange Newport Beach, So. of Jamboree Rd., E. of Irvine Coast Country Club near U.C. Irvine. 45 Comment
  RSA682602  Pseudognaphalium luteoalbum Scott D. White, Pam DeVries 1998-12-10 7201 Orange Brea: Tonner Canyon and adjacent slope, just east of 57 Freeway crossing. 137 Comment
  RSA751981  Pseudognaphalium stramineum Fred M. Roberts 2008-3-27 6804 Orange Dana Point: Dana Point Headlands, CNLM Preserve near NE Gate, 0.5 km W Marine Institute (Dana Point Harbor). 75 Comment
  IRVC15160  Pseudosasa japonica D. Van Gorden 1965-5-9 Orange Silverado Canyon. Santa Ana Mountains Comment
  IRVC2822  Pseudotsuga macrocarpa A. S. Boughey 1965-3-16 75 Orange Santa Ana Mtns: Silverado Cyn. Peninsular Ranges Comment
  RSA716772  Pseudotsuga macrocarpa Fred M. Roberts, Michelle Balk, Robert Allen, Megan Enright 2004-7-18 6256 Orange Santa Ana Mtns.: Upper Trabuco Cyn. along Trabuco Cyn. Trail, 1.3km NE Los Pinos Pk. and c.a. 0.25km by trail from Main Divide Truck Trail. 1245 Comment
  RSA580938  Psilocarphus brevissimus D. Bramlet 1995-4-29 2401 Orange Fairview Park, Costa Mesa. 366m N of intersection of Wilson and Cyn drive and 152 m W of the Cyn School. 43 Comment
  UCR238214  Psilocarphus brevissimus Mark A. Elvin 2003-3-30 2386 Orange South Coast, north side of UC Irvine Preserve, between core of UCI campus (E Peltason Dr.) and Hwy 73 69 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
  MACF025734  Psilotum nudum C. Eugene Jones 1988-10-31 Orange Grown in CSUF greenhouse complex Comment
  RSA698725  Psoralea macrostachya W. Blanchard 1932-5-25 s.n. Orange Irvine Park Comment
  RSA733702  Pteridium aquilinum Minor Warne 1934-4-28 s.n. Orange Ladd Canyon-Santa Ana Mts Comment
  RSA698490  Pterostegia drymarioides R. H. McArthur 1934-4-28 s.n. Orange Ladd Canyon Comment
  RSA38191  Pulicaria hispanica P. A. Munz 1946-10-2 11554 Orange Santa Ana River Canyon, Rancho Santa Ana 122 Comment
  IRVC29815  Pulicaria paludosa Mary H. White 2006-9-23 92306 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
  JEPS35293  Pulicaria paludosa R. L. Pope 1963-9-23 Orange approx 0.75 mi above Yorba Linda Bridge; Sanat Ana Canyon Comment
  RSA627756  Pulicaria paludosa Scott D. White 1998-5-31 6568 Orange University of California Irvine Campus, Southwest of Farm School site (now proposed as Student Rec. Ctr.). 37 Comment
  UC1731284  Pulicaria paludosa Dean W. Taylor 1994-6-7 14414 Orange along Backbay Drive at the junction with San Joaquin Hill Drive, Newport Bay Newport Bay; South Coast Region, Newport Bay 6 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
  RSA12363  Quercus X grandidentata E. R. Johnson 1934-1-6 5563 Orange Santa Ana Mts., on slopes of Sierra Peak at about the head of Claymine Canyon. 762 Comment
  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
  RSA0042557  Quercus agrifolia Paul Shirokawa 1998-4-24 9 Orange Cleveland National Forest; Trabuco Ranger District, 4.45 miles from Ortega Highway (State Highway 74) on North Main Divide Road. 1066 Comment
  IRVC20824  Quercus agrifolia var. agrifolia Fred M. Roberts 1982-7-25 784 Orange South Laguna; Niguel Hill, canyon on S flank; 0.9km ESE Aliso Peak; 1.1km NNW Bench Mark 133 Southern Coastal 195 Comment
  CAS-BOT-BC86442  Quercus berberidifolia A. M. White 1974-6-1 1398 Orange About 20 mi E. of Santa Ana, N. of Silverado County 1005 Comment
  RSA663278  Quercus berberidifolia R. E. Riefner Jr. 2000-1-18 20 -103 Orange NCCP North Ranch Policy Plan Area: Main Divide Road; top of Gypsum Canyon. 518 Comment
  UCR132889  Quercus berberidifolia Adrian Wolf 2000-6-1 468 Orange Santa Ana Mtns., North Ranch Policy Plan Area, West Fremont Canyon 534 Comment
  UCSB58639  Quercus berberidifolia Muller, Cornelius 1953-5-2 Orange Swain Canyon, lower end, Catalina Island Comment
  RSA443838  Quercus berberidifolia J. W. Johnson 1978-10-8 s.n. Orange Santa Ana Mts: Aliso Canyon - Agua Chinon Canyon Pass. Comment
  UCR145826  Quercus chrysolepis June Latting 1973-1-2 s.n. Orange Santa Ana Mountains, Silverado Canyon, 6.3 miles from Silverado Forest Station [presumably up canyon from Silverado] at 'S' curve in road 1220 Comment
  UCSB52941  Quercus chrysolepis Roberts, Fred 1983-11-4 Orange Santa Ana Mountains; upper Trabuco Canyon, 1.2 km. NE Los Pinos Peak; 3.5 km. SSE Trabuco Peak 1320 Comment
  UCD170637  Quercus dumosa D. O. Burge 2017-11-17 2326 Orange Laguna Niguel. 140 Comment
  IRVC17313  Quercus engelmannii Gordon A. Marsh, Karlin G. Marsh 1979-12-12 s.n. Orange S side of Ortega Highway (74); 4 miles E of San Diego Freeway [I405]. Santa Ana Mountains Comment
  RSA684302  Quercus engelmannii Fred M. Roberts, David E. Bramlet. 2003-3-13 5596 Orange Donna O'Neill Land Conservancy: Shady Cyn. tributary to Cristianitos Canyon, 1,200m NW Sycamore Gate and 914m W Cristianitos Rd. 177 Comment
  CAS-BOT-BC487559  Quercus ilex R. E. Riefner, Jr. 2014-11-21 14 -393 Orange City of Lake Forest, English Canyon, Aliso Creek, S of Cherry Ave., end of 2nd St., Aliso Creek Bikeway 135 Comment
  UC1135890  Quercus wislizeni A. Lewis Mar 1934 363 Orange Head of Silverado Canyon Cleveland National Forest, Corona Quad. 1112 Comment
  IRVC24473  Quercus wislizeni var. frutescens Fred M. Roberts, R. L. Allen 1986-2-23 2595 Orange Santa Ana Mountains; W of Main Divide Truck Trail; 2.1km E Los Pinos Peak. Peninsular Ranges 1115 Comment
  IRVC25093  Quercus wislizeni var. frutescens Fred M. Roberts, Gordon A. Marsh 1986-8-27 3114 Orange Modjeska Peak; Main Divide Truck Trail; SW ridge; 1.0km SW summit Santa Ana Mountains 1530 Comment
  RSA725579  Quercus wislizeni var. frutescens Fred M. Roberts, Robert L. Allen, Trish Smith 2007-6-15 6535 Orange Along dirt road on ridge between Fremont and Black Star Cyns., 5.2km ENE Irvine Lake Spillway and 1.7km W Hidden Ranch. 739 Comment
  SD144019  Rafinesquia californica Scott D. White 1997-3-28 4838 Orange Above Modjeska Canyon: Proposed water tank site. 424 Comment
  UCR194557  Rafinesquia californica A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35326 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
  UCR209061  Rafinesquia californica A. C. Sanders, Fred M. Roberts 2008-4-22 35049 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, slopes of south end of Loma Ridge and at head of Limestone Canyon, c. 2.5 miles SW of Silverado 488 Comment
  IRVC14751  Rafinesquia californica A. S. Boughey 1968-4-16 242 Orange Santiago Canyon/Lower Modjeska Cyn, Fleming Property. Santa Ana Mountains 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
  CDA3882  Reseda alba Johnson 1939-4-1 Orange Los Angeles - Garden Grove. 0 Comment
  CDA25895  Rhamnus alaternus Mark A. Elvin, D. G. Kelch 2006-12-9 5300 Orange Southern Coastal; Newport Backbay; Big Canyon, lower end. Comment
  CAS-BOT-BC55960  Rhamnus ilicifolia P. A. Munz; R. D. Harwood 1920-4-24 3765 Orange Santa Ana Canyon, Hillside, Sierra Canyon 365 Comment
  SD236398  Rhamnus ilicifolia A. C. Sanders, Fred M. Roberts, Amber ONeal, D. E. Bramlet 2008-5-9 35297 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, along old dirt road, c. 1.25 mi. ESE of Walnut Cyn Reservoir. 340 Comment
  SD247724  Rhamnus ilicifolia R. F. Thorne, E. W. Lathrop, W. Wisura. 1977-7-8 49360 Orange Santa Ana Mountains: San Juan Canyon, along Ortega Highway (74) across from San Juan Fire Station. Comment
  SD255269  Rhamnus ilicifolia Robert F. Thorne, E. W. Lathrop 1977-5-18 49724 Orange Santa Ana Mountains: Bear Spring (east slope of Santiago Peak) Comment
  UCSB48075  Rhamnus ilicifolia Roberts, Fred 1981-4-11 Orange Santa Ana Mtns., San Juan Canyon, Hwy 74, 2.4km ENE San Juan Guard Station; 0.3km W Bench Mark 1100 315 Comment
  UC1121807  Rhamnus tomentella subsp. tomentella A. Lewis May 1934 417 Orange Trabuco Canyon Cleveland National Forest, Elsinore Quad. 1371 Comment
  IRVC68  Rhus integrifolia A. S. Boughey, P. Pembrook 1965-7-16 1011 Orange Los Trancos Canyon, near spring, ; chaparral. San Joaquin Hills 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
  UCD116869  Rhus integrifolia Ronni Stachelek; Bob Anderson, Frances Schropshire 1995-3-1 36 Orange Newport Beach, W side Upper Newport Bay adjacent to Santa Ana Delhi Channel, ca. 100 m. W of footbridge. Comment
  UCD170237  Rhus integrifolia K. M. Meyer; A. Townesmith 2007-3-10 8 Orange Cleveland National Forest, 3 mi. N of Main Divide Rd./NF3S04, off Hwy. 74. 950 Comment
  RSA0041474  Rhus integrifolia Fred M. Roberts, R. L. Allen 1985-8-19 2143 Orange Mission Viejo: ridge, 3.5km ENE E1 Toro Fire Station. 279 Comment
  RSA701660  Rhus ovata Anonymous 1929-12-1 s.n. Orange Black Star Canyon 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
  SEINET10494684  Rhus ovata Charlene A. Bennett 1976-7-21 Bennett 437 Orange Cultivated plants collected in and around the condominium-Pacific Island Estates in Laguna Hills; some native shrubs, etc. 152 Comment
  RSA735255  Ribes californicum Pomeroy 1929-2-10 71 Orange Silverado Canyon. Comment
  LA205457  Ribes californicum var. hesperium C. B. Wolf; 1931-1-30 1824 Orange Santa Ana Mountains, Claymine Canyon 457 Comment
  LA205460  Ribes californicum var. hesperium W. Pequegnat; 1938-3-19 sn Orange Santa Ana Mountains, junction of Holy Jim and Trabuco Canyons 670 Comment
  CAS-BOT-BC173124  Ribes indecorum C. B. Wolf 1931-3-6 1861 Orange 1 mile north of base of Modjeska Grade, west slope of the Santa Ana Mts. 304 Comment
  OBI5870  Ribes indecorum Carl B. Wolf 1931-3-6 1861 Orange 1 mi N of base of Modjeska Grade, W slope of Santa Ana mts 305 Comment
  POM9115  Ribes indecorum P. A. Munz, R. D. Harwood 1920-4-24 3750 Orange Santa Ana Mountains, Sierra [Freemont] Canyon 366 Comment
  RSA0021661  Ribes indecorum J. D. Olmsted 1960-2-22 1103 Orange Drainage area to Black Star Canyon. Near CP at Beacon Pines Ranch. 854 Comment
  LA205475  Ribes malvaceum var. viridifolium W. Pequegnat; 1938-4-16 sn Orange Santa Ana Mountains, Indian Truck Trail 853 Comment
Read comments
Aug 29 2015
  UCD169741  Ribes malvaceum var. viridifolium R. F. Thorne; C. W. Tilforth, E. W. Lathrop 1977-4-27 49706 Orange Northern Santa Ana Mountains: Sierra Peak. 899 Comment
  SD255195  Ribes roezlii R. F. Thorne, E. W. Lathrop 1977-5-18 49739 Orange Santa Ana Mountains: summit of Santiago Peak. 1733 Comment
  CAS-BOT-BC186106  Ribes roezlii var. roezlii L. R. A. 1901-6-1 1833 Orange Santiago Peak Comment
  CAS-BOT-BC173737  Ribes speciosum Ira L. Wiggins 1966-2-25 20472 Orange Firestone Boy Scouts Reservation, in hills E. of Brea Comment
  RSA2066  Ribes speciosum Carl B. Wolf 1931-3-6 1863 Orange 1 mile north of mouth of Harding canyon, west slope of Santa Ana Mts. 305 Comment
  RSA702761  Ribes speciosum Scott D. White, Michael Honer 2004-5-17 10384 Orange South Coast: City of Laguna Niguel. Ridges and open slopes directly north of the intersection of Crown Valley Parkway and Pacific Island Dr. 61 Comment
  RSA732252  Ribes speciosum A. C. Sanders, Fred M. Roberts 2008-4-22 35038 Orange Lomas de Santiago, Limestone Canyon, c. 2 miles SW of Silverado 366 Comment
  RSA733954  Ribes speciosum Unspecified 1934-2-11 s.n. Orange Black Star Canyon Rd. Comment
  RSA733956  Ribes speciosum Lucille Crawford 1932-5-1 s.n. Orange Silverado Canyon Comment
  UC1127567  Ribes speciosum A. Lewis Mar 1934 332 Orange Santa Ana Canyon Corona Quadrangle Comment
  UCR98233  Ribes speciosum B. G. Pitzer 1997-4-15 3134 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
  JEPS53978  Ricinus communis S. B. and W. F. Parish October, 1882 1599 Orange near Anaheim Comment
Read comments
Jul 18 2010
  POM2748  Ricinus communis M. Harbour 1915-3-28 s.n Orange Orange. Comment
  POM2747  Ricinus communis P. A. Munz 1918-5-5 2177 Orange Laguna. Comment
  RSA650824  Ricinus communis Daniel Truong 1991-5-5 2 Orange Irvine Regional Park, left field adjacent to main entrance, within 1/4 mile radius of ''closed area. Comment
  RSA652429  Ricinus communis Norman Willis 1948-2-8 s.n. Orange 2 miles E of Orange. 60 Comment
  JEPS51543  Romneya coulteri Alice King Jun 1908 Orange near Santa Ana (in hills) Comment
  RSA548867  Romneya coulteri Fred M. Roberts, Carol A. Roberts 1988-6-2 4028 Orange Santa Ana Mountains: Silverado Canyon. Maple Springs Truck trail. 4.3 km above gate, 1.0 km WSW Bald Peak. 817 Comment
  RSA658201  Romneya coulteri T. A. Daubert 1991-5-19 656 Orange Tucker Wildlife Sanctuary, Modjeska Canyon, turn around island. Comment
  SBBG95105  Romneya coulteri S. D. White 1990-7-17 Orange Coal Cyn, ca. 1 mi S of the mouth of the Cyn near the Cyn bottom 274 Comment
  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
  CDA23131  Rorippa nasturtium-aquaticum Mark A. Elvin, D. G. Kelch 2006-12-9 5293 Orange Southern Coastal; Newport Backbay; Big Canyon, lower end. Comment
  JEPS53807  Rorippa nasturtium-aquaticum Alice King 1908-1 Orange Santa Ana Comment
  CSUSB1433  Rorippa nasturtium-aquaticum John S. Davis 1972-5-6 72-05-06 24 Orange Newport Beach; 1.1 miles north from corner of San Jaquin Hills road and Back Bay road; beneath road bridge, along creek bed leading to marsh Comment
  UCR266346  Rorippa palustris D. E. Bramlet 2002-4-14 3265 Orange Laguna Lakes 113 Comment
  POM1501  Rosa californica D. L. Crawford 1916-07 s.n. Orange Near Laguna Comment
  IRVC26433  Rosa minutifolia Mark A. Elvin 2004-2-22 3149 Orange UCI Arboretum Southern Coastal 15 Comment
  RSA528057  Rosmarinus officinalis A. C. Sanders 1990-10-6 10220 Orange Newport Back Bay, SW side at North Star County Beach, ca. 1 mi. inland from Hwy 1 (Pacific Coast Hwy). 1 Comment
  UCR154242  Royena lycioides subsp. lycioides Mark A. Elvin 2004-5-2 3418 Orange Southern Coastal, Irvine: San Joaquin Freshwater Marsh, near Campus and University Drives; 1.7 km (air) NNW UC Irvine campus center 3 Comment
  POM2667  Rubus ursinus Philip A. Munz 1918-5-4 2219 Orange Laguna Beach. Comment
  RSA0022431  Rubus ursinus Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49789 Orange Santa Ana Mountains: Trabuco Canyon. Comment
  RSA6066  Rumex conglomeratus Carl B. Wolf 1932-6-13 3718 Orange Storm drain at Malvern and Nicholas Aves; Fullerton. 53 Comment
  RSA735542  Rumex crispus A. C. Sanders, Fred M. Roberts 2008-5-6 35237 Orange Lomas de Santiago, Loma Ridge, head of Hicks Canyon, south of Santiago Reservoir 351 Comment
  UCR166796  Rumex crispus R. E. Riefner Jr. 2005-7-9 05- 550 Orange South Coast, city of Huntington Beach, Huntington Central Park, Goldenwest Street near Slater Avenue 1.5 Comment
  JEPS39872  Rumex maritimus Lawrence M. Booth 1932-6-28 1220 Orange Bolsas Creek Comment
  POM2357  Rumex maritimus P. A. Munz 1918-5-4 2197 Orange Laguna Lakes, Laguna. Comment
  POM48516  Rumex maritimus F. M. Reed 1925-8-15 4965 Orange Lakebed-Laguna Canon. Comment
Read comments
Jun 25 2013
  RSA65452  Rumex maritimus F. W. Peirson 1924-8-29 s.n. Orange 3 miles from Balboa Beach. Comment
  RSA0013954  Rumex salicifolius Fred M. Roberts 2008-5-7 6941 Orange Lomas de Santiago: Loma Ridge, Limestone Ridge between Dripping Spr. and Limestone Cyn., 3.5 km NW Bolero Lookout and 1.7 km E Bee Peak. Irvine Ranch Conservancy. 481 Comment
  RSA685938  Rumex salicifolius Fred M. Roberts 2003-3-27 5629 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
  UCSB48108  Rumex salicifolius Roberts, Fred 1981-4-12 Orange SANTA ANA MTNS.: San Juan Canyon, Hwy 74, 1.3km by road E San Juan Guard Station; 0.9km SE Juan Rancho Survey Mark 295 Comment
  POM202047  Salicornia bigelovii L. M. Booth 1932-12-13 1376 Orange Newport Bay. Comment
  RSA478908  Salicornia bigelovii F. R. Fosberg 1931-8-19 7286 Orange Newport Bay. 0 Comment
  POM48698  Salicornia bigelovii I. M. Johnston 1924-8-29 s.n. Orange 2.5 miles north of Balboa. Comment
  CDA1044  Salicornia subterminalis D. G. Kelch 2006-12-9 6 .541 Orange Along Newport Back Bay Dr. in side canyon. Comment
  RSA70036  Salicornia virginica F. W. Peirson 1924-8-29 5069 Orange roadside 4 miles south of Santa Ana. Comment
  UC1136468  Salicornia virginica A. Lewis Apr 1934 388 Orange Celery Corona Quad. 0 Comment
  RSA478905  Salicornia virginica E. S. Spalding 1923-11-29 s.n. Orange Near Capistrano. Comment
  LA208640  Salix exigua var. hindsiana Carl B. Wolf; 1932-7-7 3845 Orange Rancho Santa Ana, along ditch on Bixby Ave., 1 km W of Hansen Rd, near town of Los Alamitos 7.5 Comment
  CAS-BOT-BC108134  Salix gooddingii Carl B. Wolf 1932-4-8 2950 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Canyon 120 Comment
  POM2080  Salix gooddingii L. R. Abrams 1913-7-14 5005 Orange Santa Ana River Bridge, near Orange. Comment
  RSA138  Salix gooddingii J. T. Howell 1927-6-6 40 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  RSA587881  Salix gooddingii Fred M. Roberts 1990-5-8 4618 Orange Chino Hills: Soquel Canyon, c.a. 1.2 km NNW Gilman Peak. Comment
  SD146160  Salix gooddingii Andy C. Sanders 2000-4-19 23337 Orange Pacific Coast, Bolsa Chica Lagoon, along dirt roads in oil field, east of Hwy 1, east of Bolsa Chica St., saltmarsh 10 Comment
  UC492356  Salix gooddingii Carl B. Wolf 1932-4-8 2950 Orange near Santa Ana R. Rancho Santa Ana (at s.e. corner of pear orchard); Santa Ana Canyon 120 Comment
  UCR185530  Salix gooddingii Robert DeRuff 2001-4-10 s.n. Orange South Coast, Newport Back Bay, North Star Beach 3 Comment
Read comments
Jun 21 2008
  SEINET13212664 Image available Salix gooddingii Unknown 1903-1 3256 /1227 Orange Santa Ana River near Orange, S. California. Comment
  LA210261  Salix laevigata Lawrence M. Booth; 1932-12-16 1380 Orange Santa Ana River, W of Wolfe's Ranch, 0.5 mi from ocean Comment
  RSA140  Salix laevigata J. T. Howell 1927-7-14 395 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  RSA6453  Salix laevigata Carl B. Wolf 1932-4-8 2949 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Canyon, at southeast corner of pear orchard. 120 Comment
  RSA725508  Salix laevigata Fred M. Roberts 2007-9-11 6566 Orange Aliso Viejo: tributary to Aliso Creek on west side of Moulton Pkwy., 0.2 km N Aliso Viejo Pkwy., adj. to Kinder Care Learning Center. 83 Comment
  RSA734891  Salix laevigata A. C. Sanders, Mitch Provance 2008-5-20 35425 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago area, Santiago Creek Canyon, c. 3/4 mile blow Modjeska Canyon confluence. 345 Comment
  UC506450  Salix laevigata Carl Hedin and Joseph Ewan 1932-7-9 7681 Orange 8 km. below Prado (Rincon); Santa Ana R. Comment
  RSA0030858  Salix laevigata Carl B. Wolf 1932-4-8 2949 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Canyon. 120 Comment
  RSA221065  Salix lasiolepis E. W. Lathrop 1966-4-6 6137 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  UC537261  Salix lasiolepis L. M. Booth 1932-12-31 1384 Orange Newport Bay Comment
  CAS-BOT-BC128462  Salix lasiolepis var. lasiolepis Carl B. Wolf 1932-2-15 2655 Orange Rancho Santa Ana Botanic Garden, north of administration building. 182 Comment
  RSA39330  Salpichroa origanifolia E. L. Paddock 1943-5-19 12747 Orange 1 mile east of Brea. 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
  CDA1083  Salsola australis D. G. Kelch 2006-12-9 6 .536 Orange Along Newport Back Bay Dr. in side canyon. Comment
  UCR199271  Salsola australis R. E. Riefner Jr. 2006-11-14 06- 672 Orange South Coast, Irvine, along San Diego Creek at Campus Avenue and University Drive 4 Comment
  CAS-BOT-BC176976  Salsola tragus John Thomas Howell 1927-7-27 2857 Orange Hills on n. side of Santa Ana [Canon] 152 Comment
  IRVC9300  Salsola tragus B. T. Gittins 1966-6-22 1415 Orange 0.5mi N Warner on Euclid Ave. Huntington Beach Comment
  POM201958  Salsola tragus L. M. Booth 1932-7-4 1253 Orange Newport Lagoon. Comment
  RSA723482  Salsola tragus R. E. Riefner 2007-1-20 7 -16 Orange City of Lake Forest, along Bake Pwky. at Dimension Rd. 217 Comment
  RSA0095114  Saltugilia australis Clare B. Hardham 1962-4-5 8952 Orange Hills above San Clemente. Comment
  IRVC26528  Salvia apiana Mark A. Elvin 2004-5-22 3459 Orange UCI Arboretum Southern Coastal 15 Comment
  RSA663  Salvia apiana J. T. Howell 1927-6-3 s.n. Orange Botany Garden, Rancho Santa Ana. 152 Comment
  SD152816  Salvia apiana Steve Boyd, Tim Ross 1992-5-20 7484 Orange Southern Santa Ana Mountains: San Mateo Canyon Wilderness Area. Western edge of the wilderness in Lucas Canyon, along foot trail upstream from end of old roadgrade to upper homestead (corrugated steel building). 404 Comment
  UC1124655  Salvia apiana A. Lewis 1934-5-1 434 Orange Los Pinos Peak; Cleveland National Forest, Elsinore Quad. 1036 Comment
  UCR193060  Salvia apiana A. C. Sanders, Fred M. Roberts 2008-6-17 35502 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, Windy Ridge Rd., saddle on ridge at head, above the Eastern Transportation Corridor 400 Comment
  OBI30083  Salvia carduacea T. Pringle 1966-4-27 91 Orange RR Cyn Rd by RR Cyn Lake turnoff Comment
  RSA0013963  Salvia columbariae Fred M. Roberts, D. E. Bramlet 2008-5-13 6955 Orange Upper Weir Cyn., central fork, 3.5 km NE Roberst Peak 369 Comment
  SD42978  Salvia columbariae EB H mar 1948 Orange Ner San Juan Camp Comment
  UCD125511  Salvia dorrii var. dorrii G. H. Vansell 1933-6-30 s.n. Orange location unknown. Comment
  JEPS62728  Salvia leucophylla Frank W. Peirson 1927-6-20 7349 Orange Rancho Santa Ana; Mrs. Bryant's 182 Comment
  RSA550598  Salvia leucophylla Fred M. Roberts 1989-4-26 4316 Orange Lomas de Santiago: Lower Santiago Canyon, 10.1 km SW Sierra Peak, ca. 1.3 km NW Irvine Lake spillway. 195 Comment
  UC729647  Salvia leucophylla Carl B. Wolf 1932-6-2 Orange Rancho Santa Ana Rancho Santa Canyon (between administration bldg. and tennis court) 198 Comment
  UCR3192  Salvia leucophylla Chuck Elliott 1964-5-2 s.n. Orange Los Angeles Basin Region, Carbon Canyon 61 Comment
  CAS-BOT-BC233672  Salvia leucophylla Carl B. Wolf 1943-6-8 11448 Orange Rancho Santa Ana Botanic Garden, along roadside in W part of Garden 198 Comment
  CAS-BOT-BC229978  Salvia mellifera C. L. Hitchcock; C. V. Muhlick 1964-3-17 23066 Orange 8 miles e. of Yorba Linda, Santa Ana Canyon Comment
  RSA434143  Salvia mellifera F. R. Fosberg 1931-6-21 S- 5141 Orange Silverado Canyon. Santa Anita Mts. Comment
  RSA628596  Salvia mellifera J. West 1994-4-5 s.n. Orange Upper Bluebird Canyon, SE of Laguna Beach, at a park in the hills E of the head of Bluebird Canyon Road and E of housing developments Comment
  RSA67771  Salvia mellifera G. R. Campbell 1951-5-30 16087 Orange San Juan Canyon, Ortega Hwy, 4 mi. inside west border of Cleveland National Forest 152 Comment
  RSA731981  Salvia mellifera A. C. Sanders 2008-4-8 34779 Orange Peninsular Range: Lomas de Santiago, SSE os f Santiago Reservoir on Harding Truck Trail at Dripping Springs Loop, above Limestone Canyon. 475 Comment
  SBBG45102  Salvia mellifera E. R. Johnson 1935-1-14 Orange open firebreak on slopes of Sierra Pk, along rd to Claymine Cyn 609 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
  IRVC337  Sambucus mexicana H. R. Williams 1966-6-21 611 Orange San Diego Creek at Sand Canyon Road; roadside near cultivated field. Irvine Comment
  POM213050  Sambucus mexicana C. B. Wolf 1934-9-21 6140 Orange Silverado Canyon, west slope of Santa Ana Mountains, 3/4 mi. below foot of Silverado Motorway. 549 Comment
  UCR177691  Sambucus mexicana Fred M. Roberts 2003-5-1 5684 Orange Coastal Plains & Basins; South Coastal Plain region, Rancho Mission Viejo: Donna O'Neill Land Conservancy, Cristianitos Cyn., 0.60 km SSW Gato Gate and 0.16 km west of Cristianitos Rd. 93 Comment
  UCR233745  Sambucus nigra Fred M. Roberts 2008-6-12 7039 Orange Santa Ana Mtns. Foothills, Lomas de Santiago; Loma Ridge, Shoestring Canyon, Shoestring Road near jct. with Santiago Cyn. Rd. 251 Comment
  CAS-BOT-BC238830  Sambucus nigra subsp. caerulea Carl B. Wolf 1931-7-25 2293 Orange Above the irrigation canal, just no. of the Mexican houses, Rancho Santa Ana, Santa Ana Canon [Canyon] 121 Comment
  HSC3988  Sambucus nigra subsp. caerulea J. W. Johnson 1961-3-29 Orange Newport Beach, slope overlooking Upper Newport Bay. Comment
  UCSB69268  Sambucus nigra subsp. caerulea Sanders, A.; Roberts, Fred 2008-7-3 Orange Peninsular Range; Santa Ana Mtns. Weir Canyon, along Windy Ridge Rd. at hairpin turn/road junction below huge sandstone boulder (visible on Google Earth), 1.2 mi. SE of Walnut Canyon Reservoir (Black Star Canyon 7.5 ' Q.) 285 Comment
  RSA542458  Samolus parviflorus Fred M. Roberts 1987-8-6 3581 Orange San Joaquin Hills: Los Tracos Canyon, 0.9km ESE Pelican Hill. 78 Comment
  IRVC29096  Sanicula arguta Fred M. Roberts 1989-3-17 4211 Orange Aliso Canyon, 3.3km SSE Moulton Pk. Aliso-Wood Canyon Regional Park 30 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
  RSA794245  Sanicula crassicaulis Doris Hoover Bowers 1971-4-19 1688 Orange Black Star Canyon Indian Site 762 Comment
  UC1377706  Sanicula crassicaulis John Ingram 1960-3-29 264 Orange 2 mi above O'Neill Park (Trabuco Canyon); Trabuco Canyon Comment
  UCR234143  Sanicula crassicaulis Dick Newell, Don Millar 2012-3-13 230 Orange South Coastal Plain, Buck Gully, city of Newport Beach 148 Comment
  SD126645  Scandix pecten-veneris Kathy Harper 1989-4-8 Orange Ronald W. Caspers Wilderness Area, Bell Canyon Trail. 149 Comment
  RSA0036019  Schinus molle Robert F. Thorne 1977-11-21 50808 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs Comment
  RSA455  Schinus molle J. T. Howell 1927-6-21 182 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  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
  POM12405  Schoenoplectus californicus Phillip A. Munz 1922-9-2 6351 Orange Ponds in Laguna Canyon 46 Comment
  POM1385  Schoenoplectus californicus D. L. Crawford 1916-8-2 736 Orange Laguna Canyon. Comment
  POM202034  Schoenoplectus californicus L. M. Booth 1932-6-9 1176 Orange Santa Ana River, 1 mile from ocean. Comment
  RSA232214  Schoenoplectus californicus James Henrickson 1970-7-24 4985 Orange 2 miles NW of Huntington Beach around small freshwater industrial pond at eastern margin of Bolsa Chica Salt Marsh along Huntington Beach Mesa. 0 Comment
  POM202160  Schoenoplectus maritimus L. M. Booth 1932-5-30 1133 Orange Bog on south side of Newport Lagoon. Comment
  RSA542337  Schoenoplectus maritimus Fred M. Roberts, K. Keane 1988-5-25 4579 Orange Ranch Mission Viejo: Lower Canada Chiquita, 2.4 kilometers SSE Medium Rancho Survey Mark. 69 Comment
  RSA611873  Schoenoplectus maritimus L. C. Wheeler 1932-6-25 870 Orange Inland arm of Newport Bay. Sea level 0 Comment
  POM21177  Schoenoplectus maritimus Helen D. Geis s.n. Orange Peat Lands Comment
  RSA791473  Schoenoplectus maritimus Keith E. Hoffmaster 1934-7-15 155 Orange Near Santa Ana Comment
  POM50488  Schoenoplectus tabernaemontani Helen D. Geis 1902-11 s.n. Orange Unspecified. Comment
  JEPS75309  Scirpus americanus L. M. Booth 1932-5-24 1103 Orange Newport Bay Comment
  UC537256  Scirpus maritimus Lawrence M. Booth 1932-5-30 1133 Orange Newport Lagoon Comment
  RSA703733  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
  RSA733713  Scrophularia californica Kenneth Beard 1934-05 s.n. Orange Ladd Canyon. Comment
Read comments
Oct 31 2011
  RSA445380  Scutellaria tuberosa Albert J. Perkins 1919-4-13 s.n. Orange Modjeska Ranch. Comment
  RSA703882  Selaginella bigelovii Fred M. Roberts, D. E. Bramlet 2004-7-30 6079 Orange Rancho Mission Viejo: Donna O Neill Land Conservancy, Western slopes of Cristianitos Cyn., 0.25km W Sycamore Gate and Cristianitos Road. 151 Comment
  SFV17365  Selaginella bigelovii J. N. Hogue, J. D. Dilley, D. L. Bishop 1998-4-9 104 .4 Orange Santa Ana Mountains San Juan Canyon, 0.5 miles southwest of Lower San Juan Picnic Area at highway marker 14. 366 Comment
  IRVC22654  Selaginella cinerascens D. Bramlet, W. Wright 1986-5-4 Orange knoll above Segundo Deschecha Canada and west of Christianitos Canyon Rancho Mission Viejo 212 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
  RSA472959  Senecio flaccidus var. douglasii F. R. Fosberg 1931-6-21 S- 5091 Orange Lower Santiago Canyon. Comment
  RSA0124181  Senecio flaccidus var. douglasii M. B. Dunkle 1934-3-18 3973 Orange Upper San Juan Canyon. 610 Comment
  CDA25870  Senecio linearifolius Mark A. Elvin 2003-8-24 3011 Orange Southern Coastal; San Joaquin Hills, Irvine, UCI, 100 m N of the intersection of Shady Canyon Drive and Bonita Canyon Road Comment
  IRVC24749  Senecio vulgaris Fred M. Roberts 1986-4-29 2817 Orange Turtle Rock, above corner of Ridgerout Dr. and Turtle Rock Dr., 1.1km SE French Hill, Irvine 141 Comment
  RSA5576  Senecio vulgaris C. B. Wolf 1932-6-28 3766 Orange Along western half of no. boundary of 40 acre Valencia Orange grove at Bryant Ave. and Hansen Road. 9 Comment
  RSA936  Senecio vulgaris J. T. Howell 1928-2-7 829 Orange Near the ranch houses, Rancho Santa Ana 152 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
  UCR25956  Senna marilandica John C. Roos 1937-8-31 521 Orange San Juan Capistrano [beach] Comment
  CAS-BOT-BC438201  Sesuvium verrucosum D. L. Crawford 1916-8-1 s.n. Orange Laguna Beach Region. Laguna Canon [Canyon] Comment
  UCSB48233  Setaria F. M. Roberts, Jr. 1981-5-2 242 Orange collected 1.5 km N, along Camino Capistrano, in Mision Viejo Crown Valley Parkway - Mision Viejo, Camino Capistrano and Crown Valley Parkway 49 Comment
  IRVC16250  Setaria lutescens Gordon A. Marsh 1977-9-18 s.n. Orange Dana Point: Canyon betweenPaccific Coast Hwy and Del Obispo. Southern Coastal Comment
  CDA2443  Setaria megaphylla R. E. Riefner Jr. 2007-8-4 07 -345 Orange City of San Juan Capistrano, vicinity of Calle Arroyo/Paseo Esteban at San Juan Creek. Comment
  CAS-BOT-BC243591  Setaria parviflora Ira L. Wiggins 1965-10-24 20294 Orange Orange grove on S side of Yorba Linda Blvd. 1/4 mi. E of State College Blvd., Fullerton Comment
  CDA2432  Setaria parviflora T. C. Fuller 1961-10-18 7174 Orange 2 miles east of Atwood. 0 Comment
  POM1043  Setaria parviflora Clare B. Hardham s.n. Orange Laguna Beach, Orange County Comment
  POM50697  Setaria parviflora Le Roy Abrams s.n. Orange Diet bench near Santa Anar. Comment
  UCR236682  Setaria viridis Fred M. Roberts, Sandra L. Leatherman 2008-9-17 7104 Orange Peninsular Ranges, Santa Ana River Canyon: Yorba Linda Regional Park adjacent to Santa Ana River, South of La Palma Ave. and 1.7 km ENE Imperial Hwy. bridge over river 87 Comment
  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
  CAS-BOT-BC205738  Sidalcea neomexicana subsp. thurberi P. C. Everett 1935-4-27 6691 Orange Bryant Ranch. NW. Cor. Bryant Ave. & Hansen Rd. 30 Comment
  CAS-BOT-BC205743  Sidalcea neomexicana subsp. thurberi LeRoy Abrams 1903-4-17 3257 Orange Between Tustin and Myford Comment
  CAS-BOT-BC434367  Sidotheca trilobata P. C. Everett 1935-6-19 7224 Orange Santa Ana Mts., main divide motorway 1 5/10 mi. below summit of Santiago Peak, E. slope 1310 Comment
  CAS-BOT-BC384500  Silene antirrhina Helen D. Geis 1902-3-1 s.n. Orange Santiago Creek Comment
  UCR103160  Silene gallica Scott D. White 1997-3-26 4824 Orange Univ. of Calif. Irvine Campus, east of main campus at site of proposed student recreation center, east of main campus, between California Avenue and Culver Drive. 40 Comment
  RSA734647  Silene laciniata A. C. Sanders, T. B. Salvato 2008-5-13 35361 Orange Lomas de Santiago, Santiago Canyon above (S of) mouth of Hangman Tree Canyon, just below Modjeska Canyon confluence 366 Comment
  UCR16182  Silene laciniata Kenneth Hibberd 1966-5-8 660508- 2 Orange Santa Ana Mountains, Modjeska Canyon, 2 mi. north of the El Toro Road [S18] junction 396 Comment
  IRVC21393  Silene laciniata subsp. major A. S. Boughey 1968-7-9 413 Orange Santa Ana mtns: upper Santiago Canyon. Peninsular Ranges Comment
  UCR232770  Silene multinervia Robt. L. Allen, Trisha Smith, Mike Kahle 2006-6-21 s.n. Orange Peninsular Range; Santa Ana Mtns., upper Fremont Canyon, ridge along SE, along unpaved Lakeview Rd. 638 Comment
  RSA0061172  Silene multinervia Robt. Allen, Trish Smith, Mike Kahle 2006-6-21 s.n. Orange Santa Ana Mountains region: Upper Fremont Canyon, ridge along SE, along unpaved Lakeview Road. 638 Comment
  RSA16983  Sinapis arvensis Percy C. Everett 1936-3-20 s.n. Orange Rancho Santa Ana Botanic Garden, Santa Ana Canyon. West of Adm. Bldg. 198 Comment
  CAS-BOT-BC75234  Sisymbrium irio L. R. Abrams 1936-4-5 13714 Orange Rancho Santa Ana, Botanic Garden. Santa Ana Canyon. Comment
  CLARK-A1528-967  Sisymbrium irio Patricia A. Andrews 1975-6-26 5911 Orange Capistrano Bay Beach 9 Comment
  IRVC19418  Sisymbrium irio R. L. Allen 1983-2-12 A633 Orange Fullerton; Hillcrest Park, slope bordering E Valley View Drive. Southern Coastal Comment
  UCR209344  Sisymbrium irio Fred M. Roberts 2008-4-15 6900 Orange Lomas de Santiago, Loma Ridge, Lower Hicks Canyon, east ridge, Conservation Trail, 1.6 km east-southeast of Rattlesnake Reservoir Dam and 2.7 km west-southwest of Bee Peak, Irvine Ranch Conservancy 172 Comment
  RSA649292  Sisymbrium irio R. W. Hufstader 1971-2-28 18 Orange Collected by State College Blvd. north of the campus about one mile. Comment
  RSA701974  Sisymbrium officinale Fred M. Roberts, David E. Bramlet 2003-6-20 5924 Orange Rancho Mission Viejo: Donna O Neill Land Conservancy, tributary to Christianitos Cyn, along Back Road, 1.48 km WNW Sycamore Gate. 189 Comment
  UCR191002  Sisymbrium officinale A. C. Sanders, Fred M. Roberts 2008-4-22 35047 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
  UCR193519  Sisymbrium orientale A. C. Sanders, Mitch Provance 2008-5-20 35392 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
  RSA747608  Sisyrinchium bellum Fred M. Roberts 2000-5-4 5315 Orange Lomas de Santiago: Loma Ridge, Hicks Cyn., west of SR 241, 1.9 km E Rattlesnake Reservoir dam and 2.1 km WSW Bee Peak. 210 Comment
  RSA7579  Sisyrinchium bellum E. R. Johnson 1933-11 2031 Orange Rancho Santa Ana. Comment
  UCR151027  Sisyrinchium bellum Scott D. White 1997-5-6 5039 Orange Peninsular Ranges; Santa Ana Mtns., Lomas de Santiago; Santiago Canyon area; unnamed tributary to Santiago Creek flowing from the SW, directly west of Pancho Canyon 396 Comment
  UCR159774  Sisyrinchium bellum Peter A. Bowler 2003-4-20 s.n. Orange Southern Coastal, UC San Joaquin Freshwater Marsh Reserve; bluffs along NW edge of marsh Comment
  UCR222871  Solanum americanum T. B. Salvato 2010-10-27 5133 Orange South Coast, Dana Point Headlands, Hilltop Park, north of Scenic Dr. and west of Green Lantern St., overlooking Dana Point Harbor 84 Comment
  RSA232216  Solanum douglasii James Henrickson 1970-7-24 4998 Orange 2 miles NW of Huntington Beach around small freshwater industrial pond at eastern margin of Bolsa Chica Salt Marsh along Huntington Beach Mesa. 0 Comment
  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
  UCR173402  Solanum douglasii Abby Sirulnik 2000-4-11 61 Orange South Coast, Crystal Cove State Park, near Los Trancos Canyon and Pelican Hill 152 Comment
  RSA733736  Solanum douglasii Goldie Peale 1932-5-1 s.n. Orange Outskirts of Orange. Near Lemon Heights Blvd. Comment
  UCSB41752  Solanum douglasii Rowlands, Peter 1970-3-6 Orange Trabuco Cyn.; approx 2 mi up cyn from O'Neil Park 396 Comment
  RSA12658  Solanum elaeagnifolium Carl B. Wolf 1934-7-13 6038 Orange Santa Fe. R.R. embankment, 0.5 mi. west of ATwood. 91 Comment
  RSA38195  Solanum rostratum Ed Johnson 1946-8-22 11531 Orange sandy river bottom, Rancho Santa Ana, Santa Ana River Canyon 122 Comment
  RSA427453  Solanum umbelliferum E. Crow 1929-2-22 169 Orange Gypsum Canyon, Santa Ana Mountains. Near Corona. Comment
  RSA554628  Solanum umbelliferum Scott D. White 1992-10-13 959 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
  UC1125059  Solanum umbelliferum A. Lewis 1934-2-1 266 Orange Santa Ana Canyon 152 Comment
  UCR2925  Solanum umbelliferum R. Oshima 1963-5-2 050263- 10 Orange Peninsular Range; Santa Ana Mtns., 2 mi west of the Riverside County line in a draw. 15 yards up the draw under oaks Comment
  RSA650147  Solanum umbelliferum Shlomo Gat 1959-5-9 31 Orange near La Vida Comment
  UCR97816  Solanum xanti Scott D. White 1997-3-28 4831 Orange Santa Ana Mountains, Above Modjeska Canyon, proposed water tank site. 488 Comment
  UCR232931  Soleirolia soleirolii R. E. Riefner Jr. 2011-7-1 11- 84 Orange South Coast, city of Newport Beach, beach area west of the end of Cameo Shores Road, south c. 1.5 mi from Poppy Avenue 2 Comment
  RSA220957  Solidago californica E. W. Lathrop 1966-3-23 6096 Orange 4 miles northeast of Lake Irvine, Black Star Canyon, Cleveland National Forest, Trabuco District Comment
  UCR119311  Solidago californica R. E. Riefner Jr. 2000-8-8 20- 723 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
  UCR231202  Solidago californica A. C. Sanders, T. B. Salvato, Kent Beaman 2011-11-3 39940 Orange Peninsular Range; Santa Ana Mtns., near Pleasants Peak along the Main Divide Truck Trail 1143 Comment
  RSA696853  Solidago occidentalis J. R. Bruff 1930-10-19 14 Orange Santa Ana River bed. Comment
  UC284867  Solidago velutina subsp. californica P. A. Munz 1923-9-7 7747 Orange Santiago Peak , Santiago Peak (Santa Ana Mts.) 1645 Comment
  UCR237816  Sonchus oleraceus Mark A. Elvin 2003-2-2 2290 Orange South Coast, San Joaquin Marsh, UCI campus SSE of intersection of Jamboree Blvd. and Campus Dr. 2 Comment
  CAS-BOT-BC374662  Sonchus oleraceus Ira L. Wiggins 1965-11-6 20334 Orange West side of Atwood Comment
  RSA721115  Sonchus oleraceus Anonymous s.n. Orange Santa Ana Comment
  RSA750063  Sorghum bicolor A. C. Sanders, Fred M. Roberts 2008-9-18 36066 Orange Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge 320 Comment
  IRVC18904  Sorghum halepense Fred M. Roberts 1981-6-24 284 Orange San Juan Capistrano: 3.2km south of Saddleback College on Rancho Viejo Rd. southern coastal 42 Comment
  JEPS73760  Sorghum halepense L. M. Booth 1932-7-18 1265 Orange Newport Bay, Costa Mesa Comment
  CAS-BOT-BC235382  Spartina foliosa S. B. Parish; W. F. Parish 1882-10-1 1602 Orange Newport Bay Comment
  CHSC26474  Spartina foliosa James Henrickson 1970-7-24 5024 Orange 2 1/2 miles NW of Huntington Beach along south channel of Inner Bolsa Bay, adjacent to Pacific Coast Hy. in Bolsa Chica Salt Marsh. 0 Comment
  POM146217  Spartina foliosa F. M. Reed 1927-11-25 5676 Orange Anaheim Landing Comment
  RSA234494  Spartina foliosa James Henrickson 1970-7-24 5024 Orange 2.5 miles NW of Huntington Beach along south channel of Inner Bolsa Bay, adj. top Pacific Coast Hwy in bolsa Chica Salt Marsh Comment
  RSA582098  Spartina foliosa Joseph A. Ewan 1932-7-28 7709 Orange East end of Newport Bay Comment
  IRVC21281  Spartium junceum Fred M. Roberts 1984-3-15 1259 Orange Niguel Hill, at end of Sea Island Dr., 1.9km SE Aliso Peak, South Laguna 210 Comment
  SEINET10630772  Spartium junceum Greg Gust, Leith Nye 2005-3-12 Gust 565 Orange Cleveland National Forest, on Hwy 74 ca. 0.5 m W of county boundary with Riverside at a pullout. 401 Comment
  RSA659437  Spartium junceum P. Shirokawa 1998-5-7 13 Orange Cleveland National Forest- Trabuco Ranger District, 0.3 miles from Ortega Highway (State Highway 74) on North Main Divide Road. 808 Comment
  IRVC365  Spergula arvensis D. Van Gorden 1965-3-11 Orange 2212 Meyer Place. Costa Mesa Comment
  CAS-BOT-BC389926  Spergula arvensis Ira L. Wiggins 1966-3-5 20515 Orange Field about 1/2 mi. W. of El Toro Post Office, along Highway S-18 Comment
  RSA184104  Spergula arvensis I. L. Wiggins 1966-3-5 20515 Orange 1/2 mile W of El Toro along Hwy 18 Comment
  RSA696548  Spergula arvensis Minor Warne 1934-03 s.n. Orange Laguna Canyon Forks Comment
Read comments
Jun 24 2009
  RSA696570  Spergula arvensis Elisabeth Norland 1929-3-16 s.n. Orange Costa Mesa. Comment
  UCSB48380  Spergula arvensis Roberts, Fred 1982-5-22 Orange Dana Point: jct. of Stone Hill Dr. & Selva Rd.; 1.0 km ESE Dana Hills High School; 1.7 km SW Marco Forster Junior High School 40 Comment
  RSA0097080  Spergularia B. Pitzer 1996-4-30 2784 Orange Upper Newport Bay: California Department Fish & Game Ecological Reserve, off (W of) Jamboree Road. 6 Comment
  SD185179  Spergularia B. G. Pitzer 1996-4-30 2791 Orange Crystal Cove State Park. 14 Comment
  CLARK-A1528-975  Spergularia bocconi Patricia A. Andrews 1975-6-26 5929 Orange Capistrano Bay Beach 9 Comment
  CAS-BOT-BC390309  Spergularia macrotheca var. macrotheca Scott D. White 1997-3-26 4821 Orange Univ. of Calif. Irvine Campus: Site of proposed student recreation center, east of main campus. Existing Farm School and adjacent grasslands (horse pasture) between California Ave. and Culver Dr. 30 Comment
  CAS-BOT-BC390855  Spergularia marina John Thomas Howell 1927-6-30 2617 Orange 7 miles east of Long Beach 15 Comment
  RSA0098537  Spergularia marina I. M. Johnston 1924-8-29 s.n. Orange 3 miles north of Balboa. Comment
  UCSB52915  Spergularia salina Roberts, Fred; Marsh, K. 1983-5-13 Orange Dana Point Headlands; north of Dana Strand Road, 0.4 km. W Dana Point Harbor; 0.7 km. SSW Richard Henry Dana School 80 Comment
  POM1129  Sporobolus airoides C. B. Bradshaw s.n. Orange Near Anaheim Landing Comment
  RSA788911  Sporobolus indicus Fred M. Roberts 2008-9-17 7106 Orange Peninsular Ranges: Santa Ana River Canyon: Yorba Linda Regional Park adjacent to Santa Ana river, South of La Palma Ave. and 1.7 km ENE Imperial Hwy. bridge over river. 87 Comment
  UCR207566  Sporobolus indicus O. F. Clarke 2004-1 s.n. Orange South Coast, Yorba Regional Park, between Yorba Linda and Anaheim Hills 91 Comment
  UCR274181  Stachys Dick Newell, Peter Wetzel 2016-6-7 429 Orange Peninsular Range; Santa Ana Mtns., Silverado Canyon, 0.1 mile NE of Blackstar Canyon Rd. intersection, near Silverado Creek 297 Comment
  POM202025  Stachys ajugoides L. M. Booth 1932-6-4 1146 Orange Newport Lagoon. 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
  CAS-BOT-BC374782  Stebbinsoseris heterocarpa K. L. Chambers 1954-4-24 482 Orange Hwy. 18-91, Santa Ana Canyon, 7 mi. e. of Olive (hence 11 mi. e. of junction with Hwy. 101 in Anaheim) Comment
  HSC77817  Stebbinsoseris heterocarpa K. L. Chambers 1954-4-24 482 Orange Hwy. 18-91, Santa Ana Canyon, 7 mi. E of Olive (hence 11 mi. E of junction with Hwy. 101 in Anaheim) 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
  RSA627784  Stellaria media Scott D. White 1998-4-9 6266 Orange University of Calif. Irvine Campus; Drainage channel west of Medical Center, west of main campus circle. 15 Comment
  UCR222383  Stellaria media Mark A. Elvin 2003-1-26 2238 Orange South Coast, Irvine, UC Irvine Open Space Preserve, NE side, between core of UCI campus (E Peltason Dr.) and Hwy 73 69 Comment
  UCD99453  Stellaria media Ira L. Wiggins 1965-7-5 20368 Orange Orange grove 2 miles east of Atwood, on N side of Orangethorpe Ave. Comment
  RSA773509  Stellaria nitens Fred M. Roberts 1999-4-26 5200 Orange Lomas de Santiago: Lomas Ridge, ridge between Limestone Canyon and Santiago Canyon Wash, 1.7 km SE Silverado School, and 2.4 km N Bolero Lookout 411 Comment
  IRVC23252  Stephanomeria diegensis Fred M. Roberts 1982-7-30 787 Orange Niguel Hill, 0.9km ENE Aliso Peak, Laguna Niguel 260 Comment
  JEPS36708  Stephanomeria diegensis L. M. Booth 1932-8-5 1360 Orange Newport Bay Comment
  RSA703680  Stephanomeria diegensis Fred M. Roberts, David E. Bramlet 2004-11-5 6128 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, west slopes of Cristianitos Cyn., 0.79 km N Sycamore Gate and 0.18 km W Cristianitos Road. 146 Comment
  SD144104  Stipa lepida Scott D. White 1997-3-28 4839 Orange Santa Ana Mts., above Modjeska Canyon, proposed water tank site 427 Comment
  UCR192090  Stipa lepida A. C. Sanders, Fred M. Roberts 2008-5-6 35264 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
  HSC79001  Stipa pulchra Steve Boyd 1981-5-13 Orange Pelican Hill, Irvine Ranch property in the San Joaquin Hills S of Corona del Mar Comment
  RSA0127417  Stipa pulchra Fred M. Roberts 2016-3-17 8012 Orange San Joaquin Hills: City of Irvine, Bommer Canyon, east fork, 0.3 km ESE Cattle Camp near East Fork Trail. 152 Comment
  RSA0113483  Stipa pulchra Lyman Benson 1946-5-13 12100 Orange Bluffs at Corona del Mar. 15 Comment
  IRVC25397  Stylocline gnaphalioides Fred M. Roberts 1987-4-3 3340 Orange San Joaquin Hills; Irvine; central Shady Canyon, 2.9km NE Signal Hill. Central coastal 107 Comment
  RSA734653  Stylocline gnaphaloides A. C. Sanders, Fred M. Roberts, Amber O'Neal, D. E. Bramlet 2008-5-9 35311 Orange Weir Canyon, along fire line/bulldozer cut, c. 1.5 mi. east of Walnut Cyn Reservoir. 346 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
  UC1123320  Styrax officinalis var. redivivus J. B. Spring 1931-4-14 34 Orange Hot Springs, San Juan Canyon; Elsinore Quad., Hot Springs, San Juan Canyon 213 Comment
  UCR87110  Styrax officinalis var. redivivus Steve Boyd, Orlando Mistretta 1991-5-9 6205 Orange Santa Ana Mtns, Crest of range, south of Oak Flat at Beek's Place on Main Divide Truck Trail at jct with Black Star Canyon Road 854 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
  UC116539  Suaeda calceoliformis S. B. and W. F. Parish Oct 1882 1598 Orange Santa Ana Comment
  UC971742  Suaeda calceoliformis L. M. Booth 1932-7-4 1251 Orange Newport Bay Comment
  RSA5824  Suaeda calceoliformis C. B. Wolf 1932-6-28 3798 Orange 100 ft. east of pump house at East End Camp. 9 Comment
  RSA5866  Suaeda calceoliformis C. B. Wolf 1932-9-13 4020 Orange Bryant Ranch. 3/10 miles W of Los Alamitos Blvd.700 ft. south of Bryant Ave., (800 ft. east & 700 ft. south of NW corner of SW 1/4 sec. 30 T4S R11W) 7 Comment
  RSA758770  Suaeda esteroa Anstruther Davidson 1907-9-1 1782 Orange Newport Comment
  RSA758773  Suaeda esteroa Anstruther Davidson 1931 Orange Newport Comment
  UC1971448  Suaeda esteroa Louis C. Wheeler 1946-9-28 6385 Orange Newport Bay. Comment
  POM201941  Suaeda moquinii L. M. Booth 1932-7-4 1247 Orange Newport Lagoon. Comment
  CAS-BOT-BC110406  Suaeda taxifolia Allan C. Keller 1937-11-26 s.n. Orange Santa Ana River Bridge west of Newport Beach on U.S. Highway Alternate 101. Comment
  POM122880  Suaeda taxifolia Marcus E. Jones 1924-8-26 s.n. Orange Newport. Comment
  POM202053  Suaeda taxifolia L. M. Booth 1932-6-29 1232 Orange Newport Bay. Comment
  POM259503  Suaeda taxifolia A. C. Keller 1938-7-29 s.n. Orange On channel beach, 1/4 mile west of Corona del Mar 1 Comment
  RSA234501  Suaeda taxifolia James Henrickson 1970-7-25 5028 Orange 3.5 miles NW of Huntington Beach on sandy margin of Bolsa Bay, 1/4 mile SE of Warner Ave. along Pacific Coast Hwy. 0 Comment
  UCSB48383  Suaeda taxifolia Roberts, Dar; Roberts, Fred 1982-4-19 Orange Newport Beach: Upper Newport Beach Backbay; off Back Bay Dr.; 1.5 km. NNW Corona del Mar High School 1 Comment
  POM4401  Symphoricarpos mollis P. A. Munz 1918-5-4 2173 Orange Laguna Beach Comment
  UCR193767  Symphoricarpos mollis A. C. Sanders, Fred M. Roberts 2008-7-3 35671 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor 415 Comment
  UCR237812  Symphoricarpos mollis Dick Newell, Chris Packer 2012-7-3 278 Orange Peninsular Range; Santa Ana Mtns., Newport Beach, Buck Gully in San Joaquin Hills, 0.23 mi. SE of Spy Glass Hill 96 Comment
  RSA798548  Symphoricarpos parishii R. F. Thorne, E. W. Lathrop 1977-5-18 49751 Orange Santa Ana Mountains: below summit of Santiago Peak Comment
  UC729508  Symphyotrichum subulatum Carl B. Wolf 1932-9-16 4114 Orange 500 ft e of San Gabriel River (bordering Los Alamitos Bay); , Los Alamitos Bay 1 Comment
  CAS-BOT-BC98282  Symphyotrichum subulatum var. parviflorum David D. Keck 1932-9-30 1911 Orange San Clemente, south side of town along highway. Comment
  UCR137446  Tamarix ramosissima Scott D. White, Brian Leatherman 1997-6-12 5336 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
  RSA663275  Tauschia arguta R. E. Riefner 2000-3-18 20 -135 Orange Cleveland National Forest. Ridge-top E of Fremont Canyon and W of Hidden Valley. eastern part of Section 24. 731 Comment
  SBBG52719  Tauschia arguta C. Davidson 1977-5-18 5617 Orange Bear Springs, Santa Ana Mtns 1219 Comment
  RSA679087  Tauschia parishii Fred M. Roberts 2003-6-25 5940 Orange Santiago peak, north slopes along ridge east of Main Divide truck trail, 0.6km NNW summit. 1605 Comment
  RSA554632  Tetradymia comosa Scott D. White 1992-9-29 867 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
  RSA0077374  Tetradymia comosa Orlando Mistretta 1992-6-6 s.n. Orange Peninsular Ranges; Santa Ana Mtns region: Vicinity of Sierra Peak (Historical Locality). Comment
  RSA958  Tetradymia comosa J. T. Howell 1927-7-28 508 Orange Nolina Canyon, Rancho Santa Ana 152 Comment
  RSA960  Tetradymia comosa J. T. Howell 1927-6-24 470 Orange Claymine Canyon, near Sierra Peak 183 Comment
  SD216518  Thalictrum fendleri var. polycarpum Jay B. Walker 1995-3-9 1237 Orange Cleveland National Forest, Trabuco District; at junction of USFS Road 6S10 and San Juan Trail 99 Comment
  UCSB7014  Thalictrum fendleri var. polycarpum Lloyd, Robert 1959-4-17 Orange 10 miles south of West Corona, on the Oak Flats Fire Road; Mt. Range: Santa Ana 792 Comment
  RSA0127612  Torilis nodosa Fred M. Roberts 2016-4-26 8043 Orange Lomas de Santiago: South of Santiago Canyon Road in tributary to Lower Presida Canyon just southwest of Irvine Lake, 2.2 km S Irvine Lake dam spillway and 0.6 km SW Irvine Lake Park. 265 Comment
  SD152963  Torilis nodosa Steve Boyd, Tim Ross 1992-5-19 7433 Orange Southern Santa Ana Muntains, San Mateo Canyon Wilderness Area; western edge of the wilderness along Lucas Canyon Trail in Lucas Canyon, just upstream from the divide with Aliso Canyon. 365 Comment
  UCR191006  Torilis nodosa A. C. Sanders, Fred M. Roberts 2008-4-22 35023 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Limestone Canyon, c. 2 miles SW of Silverado 396 Comment
  RSA696474  Toxicodendron Harvey s.n. Orange Santa Ana Mountains. Comment
  HSC3139  Toxicodendron diversilobum J. W. Johnson 1961-4-2 Orange Newport Beach, N slope overlooking Upper Newport Bay Comment
  UCR195702  Toxicodendron diversilobum A. C. Sanders, Fred M. Roberts 2008-8-7 35980 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
  SBBG128685  Toxicoscordion fremontii R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49661 Orange northern Santa Ana Mtns, Comment
  RSA696197  Tradescantia Winifred Ball s.n. Orange Santa Ana. Comment
  IRVC944  Tragopogon porrifolius L. Burns 1965-4-20 Orange [Santiago Canyon], Tucker Wildlife Sanctuary. Santa Ana Mountains Comment
  RSA474746  Tragopogon porrifolius Albert J. Perkins 1912-09 s.n. Orange Santa Ana Comment
  UCSB48230  Tribulus terrestris Roberts, Fred 1981-5-2 Orange Mission Viejo: Camino Capistrano, 1.5km N Crown Valley Parkway 49 Comment
  CAS-BOT-BC220818  Trichostema lanatum John Thomas Howell 1927-6-26 2596 Orange Claymine Canon [Canyon], n. Santa Ana Mts. 304 Comment
  CAS-BOT-BC220820  Trichostema lanatum A. M. White 1974-6-1 1386 Orange Ca. 20 mi. E. of Santa Ana, North of Silverado Canyon Comment
  RSA443835  Trichostema lanatum Gordon Marsh, Karlin G. Marsh 1978-10-6 s.n. Orange Santa Ana Mountains: Coal Canyon; W section by Bench Mark #3R-14-68. 266 Comment
  RSA5285  Trichostema lanatum Carl B. Wolf 1932-12-19 4437 Orange Main divide of Santa Ana Mts. between Sierra Peak and Skyline Drive. 762 Comment
  RSA535969  Trichostema lanatum Fred M. Roberts 1989-4-17 4268 Orange Santa Ana Mountains: Upper Blind Canyon, 7.2km SW Sierra Peak, ca. 2.7km N Irvine Lake. 305 Comment
  UC150046  Trichostema lanatum Helen D. Geis May 1902 Orange Santiago Canyon Santa Ana Mountains Comment