Search Results — 2000 specimen records retrieved (1631 records with coordinates)
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(For large data reqests, please contact Jason Alexander, jason_alexander@berkeley.edu.)

 Please cite data retrieved from this page: Data provided by the participants of the Consortium of California Herbaria (ucjeps.berkeley.edu/cch_archive/).
 Records are made available under the CCH Data Use Terms.

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  CAS-BOT-BC229407  Abronia umbellata David D. Keck 1933-9-21 2535 Orange Sunset Beach Comment
  CAS-BOT-BC229408  Abronia umbellata Peter H. Raven 1957-9-28 11374 Orange North limits of Surfside Comment
  RSA461007  Abronia umbellata N. C. Cooper 1944-6-3 1346 Orange Balboa Beach, On beach at sea level. 0 Comment
  SEINET893157  Abronia umbellata Charles T. Mason Jr. 1943-1 108 Orange Along Coast Highway 101, one miles southeast of Huntington Beach. Comment
  UC101373  Abronia villosa C. F. Baker 1903-4-1 4125 Orange Anaheim Comment
  RSA0025969  Abronia villosa Dorothy Parsons 1932-3-28 s.n. Orange Buena Park Road. Comment
  UCR169911  Acacia Scott D. White, Jennifer H. Jones 2005-4-26 10972 Orange Laguna Beach area., City of Laguna Beach. 549 Nyes Place. Undeveloped lot within a residential neighborhood. Proposed for new home Comment
  RSA0029936  Acacia retinodes Fred M. Roberts 2013-5-15 7774 Orange San Joaquin Hills: Buck Gully, north slope, along south side of San Joaquin Hills Drive, 1.6 km NNW summit Pelican Hill. 174 Comment
  RSA450873  Acacia saligna Fred M. Roberts 1984-3-15 1260 Orange Newport Beach; Upper Newport Back Bay, along Back Bay Drive, 3.0 km. W UC Irvine campus center; 1.0 km. SSW Bayview School. 2 Comment
  IRVC9186  Acalypha californica C. A. Taylor 1966-5-18 66 -118 Orange Santa Ana Canyon, Old Rancho Santa Ana Botanic Garden site; full sun on flats and slopes. Chino Hills Comment
  CAS-BOT-BC333256  Acer macrophyllum P. A. Munz; R. D. Harwood 1920-4-23 3730 Orange Santa Ana Mts., Silverado Canon 548 Comment
  IRVC7  Acer macrophyllum D. Frees 1965-3-13 s.n. Orange Santa Ana Mtns: Silverado Cyn. Peninsular Ranges Comment
  RSA751317  Achillea millefolium A. C. Sanders, Fred M. Roberts 2008-5-6 35271 Orange Lomas de Santiago, upper Limestone Canyon, 2.9 mi. NNW of El Toro 366 Comment
  IRVC24997  Achillea millefolium var. californica Fred M. Roberts, H. Camp & R. Fisher 1986-6-20 3020 Orange San Joaquin Freshwater Marsh, near Campus Dr., 1.7km NNW UC Irvine campus center, Irvine 2 Comment
  LA48025  Acmispon glaber var. glaber Robert G. Engman; sn Orange Dana Point Comment
  SBBG120830  Acmispon heermannii var. heermannii A. C. Sanders, F. M. Roberts, M. Balk 2006-7-20 33005 Orange San Juan Cyn from Lower San Juan Picnic Area to ca. 1 mi downstream, parallel to Hwy 74 366 Comment
  UCSB47638  Acmispon strigosus Roberts, Jr., Fred 1980-5-3 Orange Main Divide Truck Trail, on east side of road, 0.4 km. W of Trabuco Peak, Santa Ana Mtns. 1341 Comment
  RSA0014075  Acourtia microcephala Fred M. Roberts 2008-5-27 7005 Orange Lomas de Santiago: Loma Ridge, Hicks Cyn., c.a. 0.2km beyond Hicks Cyn., Gate, 2.2km WNW Bee Peak, Irvine Ranch conservancy 213 Comment
  RSA734663  Acourtia microcephala A. C. Sanders, Fred M. Roberts 2008-6-17 35485 Orange Lomas de Santiago, West Loma Ridge Spur Road c. 1 km east of Sheriff's Training Facility and 1.6 km SW of Irvine Lake, between hwys 241 and 261. 357 Comment
  RSA792253  Adenostoma fasciculatum R. H. McArthur 1934-4-7 4 Orange Ladd Canyon. Comment
  UCR97813  Adenostoma fasciculatum Scott D. White 1997-3-28 4848 Orange Santa Ana Mountains, Above Modjeska Canyon, proposed water tank site. 488 Comment
  UCR98134  Adenostoma fasciculatum George K. Helmkamp, E. A. Helmkamp 1997-4-24 1662 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
  RSA357  Adenostoma fasciculatum var. fasciculatum J. T. Howell 1928-4-15 919 Orange East boundary of the Rancho Santa Ana 229 Comment
  RSA5280  Adenostoma fasciculatum var. fasciculatum B. D. Stark 1932-12-15 1700 Orange Rancho Santa Ana 145 Comment
  RSA553109  Adenostoma fasciculatum var. fasciculatum Fred M. Roberts 1989-5-9 4341 Orange Gypsum Canyon, west for, 5.6 km WNW Sierra Peak, 1km S Hwy 91. 146 Comment
  RSA739277  Adiantum capillus-veneris R. E. Riefner 2008-7-9 08 -218 Orange Orange County: City of Laguna Beach, bluff area W of W St. and Pacific Coast Hwy. 6 Comment
  SD247263  Adiantum capillus-veneris R. E. Riefner Jr. 2012-2-23 12 43 Orange City of Laguna Beach, Treasure Island Beach, vicinity of Wesley Drive and South Coast Highway. 0 Comment
  RSA610231  Adiantum capillus-veneris Fred M. Roberts 1997-4-19 5012 Orange Santa Ana Mtns. San Juan Canyon along San Juan Creek at CA Rte 74 bridge just E of San Juan Hot Springs, 0.8 km SSE Juan Rancho Survey Mark. 235 Comment
  RSA542521  Adiantum jordanii Fred M. Roberts 1988-3-15 3866 Orange Rancho Mission Viejo: west lateral to Central Gabino Canyon, 4.4 km SE Point Rancho Survey Marker. 191 Comment
  RSA703722  Adiantum jordanii D. E. Bramlet, Fred M. Roberts 2003-3-27 3355 Orange Donna O'Neill Reserve. NE corner of the reserve 274m west of Cristianitos Rd. and 1.46km north of the E-W access road. 152 Comment
  IRVC3114  Adiantum jordanii Diane Ibbetson 1965-3-12 HS 0577 Orange Corona Del Mar Southern Coastal Comment
  RSA0008824  Adiantum jordanii J. T. Howell 1927-6-24 197 Orange Aliso Canyon, Rancho Santa Ana. 274 Comment
  IRVC3117  Adiantum raddianum Pat Rolfe 1965-4-20 HS 0581 Orange Newport Beach: Back Bay. Southern coastal Comment
  RSA759121  Ageratina adenophora Robt. Allen 2007-7-15 s.n. Orange San Juan Canyon, Ortega Hwy, circa 1.2 road mi E of San Juan Fire Station 308 Comment
  CAS-BOT-BC295625  Agnorhiza ovata P. C. Everett 1935-6-18 7198 Orange Santa Ana Mts., Main Divide Motorway, Los Pinos Potrero 914 Comment
  JEPS32110  Agnorhiza ovata P. C. Everett 1935-6-18 Orange Los Pinos Potrero, main divide motorway Santa Ana Mts. 914 Comment
  UCR87044  Agoseris grandiflora B. G. Pitzer 1992-5-27 1952 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
  RSA637486  Agoseris retrorsa Valerie L. Soza, LeRoy Gross 1999-6-10 513 Orange Santa Ana Mountains: Southwestern extension of Modjeska Peak, off Main Divide Road. 1524 Comment
  RSA0053702  Agrostis avenacea Chris E. True 2013-5-2 s.n. Orange Bommer Canyon, NW of Aliso Viejo. 104 Comment
  UCR193382  Agrostis pallens A. C. Sanders, Mitch Provance 2008-5-20 35389 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, mouth of Hangman Tree Canyon just above confluence with Santiago Creek Canyon, c. 1/2 mile below Modjeska Canyon confluence 366 Comment
  UCR192983  Agrostis viridis A. C. Sanders, Fred M. Roberts 2008-6-17 35467 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Agustine staging area near Limestone Canyon Rd. gate at Santiago Cyn Rd. 260 Comment
  UCR193387  Agrostis viridis A. C. Sanders, T. B. Salvato 2008-5-13 35348 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
  UCR193762  Agrostis viridis A. C. Sanders, Fred M. Roberts 2008-7-3 35703 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along Weir Canyon Rd. 1.2 mi. SSE of Walnut Canyon Reservoir, below Upper Blind Canyon Rd. 212 Comment
  UCR149361  Albizia lophantha Scott D. White, Brian Leatherman 2003-10-30 9849 Orange Peninsular Ranges; Santa Ana Mountains region, Foothills; Oso Parkway crossing over Chiquita Canyon 229 Comment
  UCSB18193  Allium haematochiton 1962-3-9 Orange 12.3 miles east of San Juan Capistrano on State 74 243 Comment
Read comments
Apr 10 2016
  UCR129780  Allium praecox P. A. Munz, L. T. Street, G. Williams 1919-5-3 2635 Orange Santa Ana River Canyon 122 Comment
  RSA0051391  Allium praecox Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49664 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. Comment
  RSA548870  Allium praecox Fred M. Roberts 1987-4-3 3342 Orange Irvine: San Joaquin Hills, Central Shadey Canyon, 2.8 kilometers NE Signal Hill. 103 Comment
  RSA759268  Allium praecox Robt. Allen, Reginald Durant, David Taylor 2008-4-11 s.n. Orange 1.6 road mi EENE above Maple Springs Forest Gate, between Lost Woman Canyon and Spruce Canyon. 740 Comment
  UC718489  Allophyllum glutinosum Carl B. Wolf 1933-8-24 5399 Orange summit Santiago Peak; Santa Ana Mts. 1731 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
  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
  CAS-BOT-BC170687  Alnus rhombifolia Ira L. Wiggins 1966-2-4 20411 Orange Along immediate margin of Stream above Ranger Station, Trabuco Canyon Comment
  RSA452789  Alnus rhombifolia Marcus E. Jones 1930-1-26 26226 Orange Wildwood Camp, Santa Ana River. Comment
Read comments
Nov 18 2013
  SDSU12041  Alnus rhombifolia Curtis B. Kendal 1994-5-18 18 V94D Orange South of Bell Canyon Road at the three pipe crossing, in the National Audubon Society Starr Ranch Sanctuary. 308 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
  RSA597728  Alopecurus saccatus D. E. Bramlet 1995-6-10 2435 Orange Fairview Park, City of Costa Mesa., 37 24 490m N, 4 12 360m E. 43 Comment
  RSA724041  Amaranthus blitum subsp. emarginatus R. E. Riefner 2004-8-8 4 -370 Orange City of Anaheim, Santa River bottom near 57-Freeway between Orangewood St. and Chapman Ave. 41 Comment
  RSA724071  Amaranthus blitum subsp. emarginatus R. E. Riefner 2005-7-9 5 -546 Orange City of Huntington Beach, Huntington Central Park at Goldenwest St. 1 Comment
  IRVC22  Amaranthus retroflexus I. L. Wiggins 1965-11-3 20312 Orange Orange Grove E CSUF campus. Fullerton Comment
  RSA404566  Amaranthus retroflexus Albert J. Perkins 1912-10-15 s.n. Orange Peatlands near head Newport Bay. Comment
  POM147625  Amblyopappus pusillus F. M. Reed 1926-5-19 5360 Orange Roadside near Dana Point. Comment
  RSA416884  Amblyopappus pusillus L. C. Wheeler 1932-6-22 848 Orange Newport Bay. 8 Comment
  RSA743511  Amblyopappus pusillus Fred M. Roberts 2008-4-9 6862 Orange Dana Point: Dana Point Headlands, CNLM Preserve near Outlook 2, 0.7 km W Marine Institute (Dana Point Harbor). 45 Comment
  SEINET2028644 Image available Amblyopappus pusillus Lawrence M. Booth 1932-5-12 1007 Orange Newport Bay Comment
  UCR17118  Amblyopappus pusillus N. J. Moriarty 1973-5-27 730527 -5 Orange San Clemente State Beach, 0.2 mi. south of end of Ave. Califia Comment
  UCR186134  Ambrosia acanthicarpa T. B. Salvato, Katie Kurtz 2006-10-15 1916 Orange South Coast, Irvine, San Diego Creek flood control channel, near Michelson Drive and Harvard Avenue 6 Comment
  UCSB48044  Ambrosia acanthicarpa Roberts, Fred 1981-9-26 Orange Anaheim Bay; Calif. Rte. 1 at southern margin of Naval Weapons Station, 1.7 km. SE McGaugh School; 1.1 km. W Hog Island 1 Comment
  RSA0106317  Ambrosia acanthicarpa Lyman Benson 1946-5-13 12091 Orange Corona del Mar. 15 Comment
  POM202166  Ambrosia chamissonis L. M. Booth 1932-5-25 1110 Orange Balboa Island [Newport Bay]. Comment
  RSA678452  Ambrosia chamissonis Valerie L. Soza, Kenneth Clark, LeRoy Gross, Will Miller, Fred M. Roberts, Gary D. Wallace 2001-4-4 1115 Orange Anaheim Bay: Seal Beach U. S. Naval Weapons Station, southwestern edge of Seal Beach National Wildlife Refuge. 3 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
  CAS-BOT-BC13768  Ambrosia chamissonis David D. Keck 1933-9-8 2522 Orange Sunset Beach Comment
  CDA21595  Ambrosia chamissonis B. S. Herhus, Mark A. Elvin 2006-11-4 13 Orange Southern Coastal; Huntington Beach, Bolsa Chica Wetlands, southwest portion of Reserve beside Pacific Coast Highway. Comment
  CAS-BOT-BC45064  Ambrosia psilostachya John Thomas Howell 1927-9-24 3121 Orange Santa Ana River bottom, Santa Ana Canyon 152 Comment
  JEPS41025  Ambrosia psilostachya W. L. Jepson 1940-10-6 20179 Orange Horseshoe Bend; Santa Ana River Canon Comment
  POM201785  Ambrosia psilostachya L. M. Booth 1932-7-19 1277 Orange Bolsas Marsh. Comment
  UCR247914  Ambrosia psilostachya Fred M. Roberts 2012-7-18 7679 Orange SAN JOAQUIN HILLS: Newport Beach, Buck Gully, Buck Gully Trail, west end, just east of north terminus of Poppy Street and 2.1 km WNW summit of Pelican Hill 37 Comment
  UCR267219  Ammannia coccinea Fred M. Roberts, Sandra L. Leatherman 2008-9-3 7083 Orange Santa Ana River Canyon, YORBA LINDA: Santa Ana River, 0.7 km W Gypsum Canyon bridge, south of La Palma Ave. 107 Comment
  POM48524  Ammannia robusta F. M. Reed 1924-8-15 4962 Orange Laguna Lake bed - Laguna canyon. Comment
  UC718381  Amorpha californica var. californica P. C. Everett 1935-6-19 7235 Orange 1/2 mi below (w) head of canyon; Santa Ana Mts., Trabuco Canyon 1066 Comment
  JEPS35488  Amorpha fruticosa John Thomas Howell 1927-6-6 2449 Orange Rancho Santa Ana Santa Ana Canyon, Santa Ana River bottom 152 Comment
  UCR138407  Amorpha fruticosa Scott D. White, Brian Leatherman 1997-6-12 5329 Orange Santa Ana Mtn. foothills, E of San Juan Capistrano: San Juan Creek between Hwy 74 bridge and Mission Vieja site, i.e. c. 2-4 mi east of Hwy I-15/Hwy 74 junction 76 Comment
  CAS-BOT-BC213966  Amsinckia Helen D. Geis 1902-1-1 510 Orange Santa Ana Comment
  IRVC29087  Amsinckia intermedia Fred M. Roberts 1989-3-17 4202 Orange Aliso Canyon, 3.3km SSE Moulton Pk. Aliso-Wood Canyon Regional Park 30 Comment
  OBI6061  Amsinckia intermedia Carl B. Wolf 1931-3-6 1864 Orange E side of Orange county Park 152 Comment
  RSA0089443  Amsinckia intermedia P. A. Munz 1932-3-29 12189 Orange Costa Mesa. Comment
  RSA620  Amsinckia intermedia J. T. Howell 1928-2-25 833 Orange Near Bee Canyon, Rancho Santa Ana. 152 Comment
  RSA702989  Amsinckia intermedia D. E. Bramlet, Fred Roberts 2003-3-13 3333 Orange Donna O Neill Reserve. North East ridge of the reserve, 915m W of Cristianitos Rd. & 1.2km N of the E-W access road. 195 Comment
  UC1178234  Amsinckia intermedia Francia Chisaki 1957-4-3 925 a Orange 3 mi s Irvine (on Hwy 101) Comment
  UC494723  Amsinckia intermedia Philip A. Munz 1932-3-29 12189 Orange Costa Mesa Comment
  UCR192461  Amsinckia intermedia A. C. Sanders, Fred M. Roberts 2008-3-25 34529 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  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
  RSA0127613  Amsinckia menziesii Fred M. Roberts 2016-4-26 8044 Orange Lomas de Santiago: South of Santiago Canyon Road in tributary to Lower Presida Canyon just southwest of Irvine Lake, 2.2 km S Irvine Lake dam spillway and 0.6 km SW Irvine Lake Park. 265 Comment
  IRVC204  Amsinckia menziesii var. intermedia L. Aldis 1965-4-27 Orange Irvine Park Comment
  IRVC213  Amsinckia menziesii var. intermedia D. Frees 1965-3-27 Orange Newport Beach; East Bluffs. Southern Coastal Comment
  IRVC9355  Amsinckia menziesii var. intermedia B. T. Gittins 1963-4-21 179-A Orange Newport Back Bay. Newport Beach Comment
  HSC17835  Anagallis arvensis J. W. Johnson 1961-3-29 Orange Newport Beach, on S side of upper Newport Bay Comment
  RSA708285  Anagallis arvensis Scott D. White, Jennifer H. Jones 2005-3-31 10858 Orange South Coast: City of Laguna Beach. 549 Nyes Place. Proposed home site on ca. 0.5 acre. 91 Comment
  RSA747628  Anagallis arvensis Fred M. Roberts 2008-5-16 6972 Orange Dana Point: Dana Point Headlands, CNLM Preserve, near Strands Road Gate, 0.8km WNW Marine Institute, Dana Point Harbor. 65 Comment
  RSA602640  Anagallis arvensis B. Pitzer 1996-4-30 2794 Orange San Joaquin Hills Crystal Cove State Park, south of City of Irvine on State Hwy 1 (Pacific Coast Hwy). 15 Comment
  CAS-BOT-BC400329  Anemopsis californica Herbert L. Mason 1926-4-25 2902 Orange Near Laguna Comment
  JEPS535  Anemopsis californica Lawrence M. Booth 1932-7-19 1280 Orange Bolsas Creek Comment
  SD41483  Anemopsis californica Edith A. Purer 1932-8-31 4873 Orange Orange County near Route #101, moist depression in sand Comment
  UCR159783  Anemopsis californica Peter A. Bowler 2003-4-20 s.n. Orange Southern Coastal, UC San Joaquin Freshwater Marsh Reserve; in marsh at north edge of marsh beside UCI Arboretum 3 Comment
  RSA542472  Anthemis cotula Fred M. Roberts 1988-4-14 3926 Orange IRVINE: south of the San Diego Freeway, 1.2 km. ENE French Hill. 41 Comment
  RSA734807  Anthriscus caucalis A. C. Sanders, Fred M. Roberts 2008-5-6 35255 Orange Lomas de Santiago, slope SE of road junction along ridge road, near head of Agua Chinon Canyon, 2.4 miles north of El Toro 470 Comment
  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
  RSA737889  Antirrhinum multiflorum R. E. Riefner 2007-6-29 07 -286 Orange Irvine Ranch Reseve, N Irvine Ranch, E Fork cliffs at upper Fremont Canyon along Black Star SCE road. 579 Comment
  UC1929693  Antirrhinum multiflorum R. E. Riefner Jr. 2008-7-21 08 -248 Orange Irvine Ranch Reserve, North Irvine Ranch, middle Fremont Canyon, east slope along Black Star SCE Rd. Comment
  RSA701675  Antirrhinum nuttallianum L. C. Hull 1939-9-8 s.n. Orange Laguna Hills Comment
  POM354915  Antirrhinum nuttallianum subsp. nuttallianum Albert J. Perkins 896 Orange Laguna Beach, Nigger Canon Comment
Read comments
Jul 15 2013
  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
  UCR224161  Antirrhinum nuttallianum subsp. subsessile Fred M. Roberts 2008-3-19 6784 Orange South Coast, Dana Point Headlands, Center for Natural Lands Mgmt. Preserve, 0.8 km west of the Marine Institute, Dana Point Harbor 45 Comment
  UCSB52937  Antirrhinum nuttallianum subsp. subsessile Roberts, Fred 1984-4-29 Orange Laguna Beach; Temple Hill above Laguna Cyn; 6.5km SE Signal Peak; 0.6km E BM 104 195 Comment
  POM183948  Aphanisma blitoides P. A. Munz 1932-3-29 12192 Orange Costa Mesa. Comment
Read comments
Dec 4 2014
  JEPS12253  Apiastrum angustifolium Lawrence M. Booth 1932-5-12 1027 Orange Newport Bay Comment
  RSA542442  Apiastrum angustifolium Fred M. Roberts 1988-4-10 3920 Orange Lomas De Santiago: Loma Ridge, 1.0 kilometer N Bolero Lookout. 415 Comment
  UC1607981  Apiastrum angustifolium Donald G. Nelson 1935-4-6 228 Orange just s of boundary of Cleveland National Forest (e of San Juan Capistrano, northward from the summer ranger station at main Hwy up San Juan Canyon); San Juan Canyon Comment
  RSA0002591  Apium graveolens var. graveolens F. W. Peirson 1924-5-31 4656 Orange Open Canyon, Laguna Beach. 91 Comment
  RSA0054901  Arabis glabra Keith E. Hoffmaster 1934-4-22 178 Orange Santa Ana mts. [Orange or Riverside]. Comment
  RSA0126213  Arabis glabra P. A. Munz, R. D. Harwood 1920-4-25 3721 Orange Santa Ana Mountains, Silverado Canyon. 549 Comment
  IRVC19395  Araujia sericifera R. L. Allen 1983-2-12 A627 Orange Fullerton; Hillcrest Park, slope bordering E Valley View Drive. Southern Coastal Comment
  LA42396  Arctostaphylos glandulosa W. Pequegnat; 1938-4-16 sn Orange Santa Ana Mountains, Indian Truck Trail 914 Comment
Read comments
Aug 29 2015
  LA42398  Arctostaphylos glandulosa W. Pequegnat; 1938-9-3 sn Orange Santa Ana Mountains, Ortega Rd 731 Comment
  RSA626922  Arctostaphylos glandulosa Jon E. Keeley 1992-6-12 15507 Orange Hotshot Camp, north of Ortega Highway (Highway 74). 900 Comment
  UCD50872  Arctostaphylos glandulosa H. A. Jensen 1937-11-4 415 Orange At head of Trabuco canyon; Cleveland National Forest. 1188 Comment
  CAS-BOT-BC23111  Arctostaphylos glandulosa subsp. glandulosa P. A. Munz; E. K. Balls 1952-8-19 17924 Orange Summit of Ortega hwy, Santa Ana Mts. 822 Comment
  IRVC1253  Arctostaphylos glandulosa subsp. glandulosa A. S. Boughey 1965-3-16 63 Orange Silverado Canyon. Santa Ana Mountains Comment
  POM254923  Arctostaphylos glandulosa subsp. glandulosa W. Pequegnat 1940-6-19 s.n. Orange Main Divide Road, between Pleasants and Bedford Peaks. Santa Ana Mts. Comment
  RSA626919  Arctostaphylos glandulosa subsp. glandulosa Jon E. Keeley 1992-6-12 15508 Orange Hotshot Camp, north of Ortega Highway (Highway 74). 900 Comment
  RSA629323  Arctostaphylos glandulosa subsp. glandulosa Jon E. Keeley 1992-6-12 15504 Orange Road to Blue Jay Campground, 1 km south of Hotshot Camp, north of Ortega Hwy. (Hwy. 74). 800 Comment
  RSA629344  Arctostaphylos glandulosa subsp. glandulosa Jon E. Keeley 1992-6-12 15501 Orange Road to Blue Jay Campground, 1 km south of Hotshot Camp, north of Ortega Hwy. (Hwy. 74). 800 Comment
  UCD105711  Arctostaphylos glandulosa subsp. glandulosa K. M. Meyer; A. Townesmith 2007-3-10 2 Orange Cleveland National Forest, 0.5 mi. N. Main Divide Rd./NF3S04, off Hwy. 74. Elsinore Mountains, ridge top. 917 Comment
  RSA748167  Arctostaphylos otayensis K. M. Meyer, A. Townesmith, T. Scott 2007-3-10 6 Orange Cleveland National Forest, 2 mi. N of Main Divide Rd./NF3S04, off Hwy. 74. 957 Comment
Read comments
Dec 19 2014
  RSA234498  Arctotis venusta James Henrickson 1970-7-25 5091 Orange 2 miles NE of Huntington Beach near north end of Bolsa Chica Salt Marsh. 0 Comment
  RSA0004622  Argemone munita subsp. robusta Carl B. Wolf 1933-8-24 5403 Orange open areas along the firebreak at the Summit of Santiago Peak. 1732 Comment
  RSA38  Aristida adscensionis var. modesta J. T. Howell 1928-2-26 856 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  UCR130489  Aristida purpurea var. parishii R. E. Riefner Jr. 2000-7-7 00- 629 Orange Santa Ana Mtns., North Ranch Policy Plan Area, on ridgeline overlooking upper west fork of Fremont Canyon; east of Main Divide Road and SE from Windy Ridge cypress forest 348 Comment
  UCD56376  Aristida ternipes var. gentilis D. E. Bramlet; Fred Roberts 2003-3-13 3336 Orange Donna O'Neill Reserve, north east ridgeline 762 m west of Cristianitos Rd., and 1.15 km north of the E-W Access Road. 198 Comment
  SD52987  Arnica discoidea Peter H. Raven 1962-5-18 17751 Orange 4.8 miles above Gate on Silverado Canyon Truck Trail, Santa Ana Mountains 1064 Comment
  RSA776  Artemisia biennis J. T. Howell 1927-10-29 784 Orange Bryant Ranch near Long Beach. 15 Comment
  SBBG98322  Artemisia biennis L. M. Booth 1932-7-4 1250 Orange Newport Bay Comment
  HSC4715  Artemisia californica J. W. Johnson 1961-3-29 Orange Newport Beach, N slope overlooking upper Newport Bay Comment
  RSA417251  Artemisia californica Anstruther Davidson 1907-09 1771 Orange Newport. Comment
  SEINET9345935  Artemisia californica A. Sanders, Burger, Jutta 2009-10-21 37191 Orange Peninsular Range; Santa Ann Mtns.: Lomas de Santiago, lower Hangmans Tree Canyon. Oak woodland (Quercus agrifolia) along wash; area burned fall 2007. Scattered shrubs, road edges and steep bluffs. Comment
  UC536946  Artemisia californica Lawrence M. Booth 1932-7-27 1327 Orange Newport Bay Comment
  UCR100185  Artemisia californica Scott D. White 1996-12-20 4634 Orange Santa Ana Mountains, above Modjeska Canyon; proposed water tank site 488 Comment
  UCR131889  Artemisia californica J. Mallory, V. McCoy 1995-7-3 6454- 70 Orange Santa Ana Mountains: N-facing slope in Santiago Canyon, c. 0.5 mi. east of Santiago Canyon Rd; near Irvine Park 200 Comment
  UCR210051  Artemisia californica A. C. Sanders, Fred M. Roberts, Jutta Burger 2009-10-21 37191 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hangmans Tree Canyon 379 Comment
  JEPS36924  Artemisia douglasiana L. M. Booth 1932-7-23 1302 Orange Corona del Mar Comment
  RSA703143  Artemisia douglasiana Fred M. Roberts, Arthur Davenport 2003-9-11 6012 Orange Rancho Mission Viejo; Donna O'neill Land Conservancy, Cristianitos Cyn., 0.79 km N of Sycamore Gate, 0.23 km W of Christianitos Road. 126 Comment
  CAS-BOT-BC90566  Artemisia dracunculus John Thomas Howell 1927-9-24 3118 Orange on sandy island in Santa Ana River bottom, Santa Ana [Canon] Canyon 152 Comment
  POM201750  Artemisia dracunculus L. M. Booth 1932-7-4 1242 Orange Newport Lagoon. Comment
  IRVC408  Arthrocnemum subterminale J. B. Anderson 1966-4-16 589 Orange Newport Beach; Corona del Mar; Buck Gully; "Little Corona Beach"; moist canyon bottom with small brooklet near stream. Southern Coastal 0 Comment
  RSA234505  Arthrocnemum subterminale James Henrickson 1970-7-25 5048 Orange 2.5 miles NE of Huntington beach, 1 mile SE of Warner Ave. on sandy slope of E. Pacific Coast Hwy. at border of Bolsa Chica Salt Marsh. 0 Comment
  CDA31507  Arundo donax D. G. Kelch 2006-12-9 6 .559 Orange Irvine. University Dr along tidal creek just E of I-73. Comment
  POM127917  Asclepias cordifolia Mrs. R. M. Austin 1896-05 s.n. Orange Lion Canyon Comment
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Aug 31 2020
  IRVC19696  Asclepias fascicularis Karlin G. Marsh 1983-5-25 s.n. Orange Sycamore Hills, Laguna Canyon; freshwater marsh between Laguna Canyon laterals 6 & 7. Laguna Beach Comment
  IRVC178  Asplenium bulbiferum Ray Nesheim 1965-5-11 HS0565 Orange Balboa Island. Southern Coastal Comment
  RSA699721  Aster bernardinus Keith E. Hoffmaster 1933-10-8 1046 Orange Near Newport Bay. Comment
  RSA715694  Aster subulatus var. ligulatus Fred M. Roberts, Chris M. Barnhill 2005-9-27 6275 A Orange San Juan Capistrano: San Juan Creek wash, east of La Novia Road bridge, 1.4km E Mission San Juan Capistrano, 27 Comment
  RSA93743  Aster subulatus var. ligulatus F. W. Peirson 1924-10-19 5240 Orange Wintersberg 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
  RSA701753  Astragalus brauntonii Elisabeth Landis, Valentin Arvizu, Cliff McLean, Kadest Ketsella 2004-9-6 s.n. Orange Specimen located against wooden cofferdam in wet sand in CalTrans debris basin on S side of 91 Freeway in Coal Canyon. Comment
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Nov 22 2011
  UC592754  Astragalus brauntonii Carl B. Wolf 1936-6-22 8000 Orange n slopes Sierra Pk (Claymine Canyon Truck Trail to Sierra Pk); Santa Ana Mts., n slopes Sierra Pk 457 Comment
  UCR229599  Astragalus brauntonii Betsey Landis, Valentin Arvizu, Cliff McLean, Kadest Ketsella 2004-9-6 s.n. Orange Peninsular Ranges; Santa Ana Mountains region, against wooden cofferdam in wet sand in CalTrans debris basin on S side of 91 Freeway in Coal Canyon, very near the dead end offramp 166 Comment
  RSA542542  Astragalus gambelianus Fred M. Roberts 1988-3-15 3848 Orange Rancho Mission Viejo: Verdugo Canyon, 2.6 km ENE Point Rancho Survey Mark 149 Comment
  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
  POM17799  Astragalus trichopodus var. lonchus P. A. Munz 1923-9-7 7770 Orange Mouth of Trabuco Canyon 305 Comment
  HSC14541  Astragalus trichopodus var. phoxus C. L. Hitchcock 1966-3-15 24141 Orange Stearns Lease, 1.5 mi. E of Brea. Comment
  RSA671247  Atriplex R. E. Riefner 2002-5-4 20 -87 Orange City of Dana Point, beach west of Pacific Coast Hwy. near mouth of Salt Creek. 15 Comment
  UC1980256  Atriplex R. E. Riefner Jr. 2007-10-26 07 -453 Orange City of Laguna Niguel, Laguna Niguel Regional Park, Sulphur Creek Reservoir, near La Paz Rd. and Kings Rd. Comment
  RSA737475  Atriplex R. E. Riefner 2008-3-24 8 -67 Orange City of Seal Beach, Bolsa Chica Salt Marsh, Warner Ave. at Pacific Coast Highway. 5 Comment
  UCR240254  Atriplex amnicola R. E. Riefner Jr. 2006-2-12 06- 21 Orange South Coast, N end of City of San Clemente, along N-bound I-5, immediately S of Camino de Estrella exit ramp 66 Comment
  RSA737242  Atriplex amnicola R. E. Riefner 2005-9-16 05 -666 Orange Upper Newport Bay, E of Bayside Dr. at confluence with Big Canyon. 6 Comment
  RSA743668  Atriplex amnicola R. E. Riefner 2007-8-4 7 -344 Orange City of San Juan Capistrano, San Juan Creek, ca. 0.2 mi W of intersection of Paseo Tirador and Calle Arroyo St. 31 Comment
  UCR158035  Atriplex argentea Adrian Wolf 1998-7-1 405 Orange South Coast, Peters Canyon Channel, east of channel near Harvard Ballfield, between Harvard Ave. & creek, south of Warner Ave. to Barranca 15 Comment
  RSA696737  Atriplex argentea subsp. expansa J. R. Bruff 1930-10-19 s.n. Orange Delhi Rd. Comment
  RSA542649  Atriplex californica Fred M. Roberts 1988-10-12 4159 Orange San Clemente State Park: c.a. 0.2 km SE end of Ave. California along Santa Fe RR. 3 Comment
  RSA234538  Atriplex canescens James Henrickson 1970-7-24 5018 Orange 3 miles NW of Huntington Beach on sandy ''Rabbit'' Island in Bolsa Chica Salt March near Inner Bolsa Bay. 1 Comment
  RSA624453  Atriplex canescens L. C. Wheeler 1933-10-21 2221 Orange Newport Bay. 3 Comment
  SD133121  Atriplex canescens A. C. Sanders 1990-10-6 10193 Orange Newport Bay, North Star County Beach area on the southwest end of the bay, ca. 2.0 km inland of Highway 1. 0 Comment
  UC536969  Atriplex canescens Lawrence M. Booth 1932-7-23 1301 Orange Corona del Mar , Corona del Mar (Newport Beach) Comment
  UCR221462  Atriplex canescens Dick Newell, Don Millar, Steve Shinn 2010-9-28 37 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Hicks Haul Road (Jeffrey Rd.) at Hwy 241 toll road 221 Comment
  IRVC24454  Atriplex canescens subsp. canescens Fred M. Roberts 1985-11-20 2560 Orange Newport Back Bay, near Camp Survey Mark, Newport Beach 2 Comment
  IRVC25202  Atriplex davidsonii Fred M. Roberts 1986-11-4 3201 Orange Anaheim Bay, north of Hog Island, Seal Beach Naval Weapons Station 0 Comment
  SBBG132292  Atriplex glauca R. E. Riefner Jr. 2006-3-19 06 -52 Orange near Avocado Ave and San Nicolas Dr, W of MacArthur Blvd; Newport Beach 77 Comment
  UCR107440  Atriplex glauca B. G. Pitzer, M. Georgiady 1997-4-5 3090 Orange San Joaquin Hills, Crystal Cove State Park, portion across highway on the beach, bluffs immediately above beach and adjacent terraces for southeast end of park. 24 Comment
  SD220050  Atriplex lentiformis Mark A. Elvin 2004-5-2 3423 Orange Irvine: SanJoaquin Freshwater Marsh, near Campus and University Drs., 1.7 km (air) NNW UC Irvine campus center. 3 Comment
  CLARK-A1528-1186  Atriplex leucophylla John C. Roos 1949-10-1 4677 Orange Doheney 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
  LA210077  Atriplex leucophylla Jonathan Sauer; D. L. Johnson 1969-5-11 4520 Orange West Cove, NW end of island Comment
  POM201890  Atriplex prostrata L. M. Booth 1932-8-5 s.n. Orange West Newport Beach Comment
  CDA23155  Atriplex semibaccata Mark A. Elvin, D. G. Kelch 2006-12-9 5296 Orange Southern Coastal; Newport Backbay; Big Canyon, lower end. Comment
  RSA743498  Atriplex semibaccata Fred M. Roberts 2008-7-10 7070 Orange Dana Point: Dana Point Headlands, CNLM Preserve, along north slopes above Dana Strand Beach, 0.8km WNW Marine Institute, Dana Point Harbor. 45 Comment
  SD133115  Atriplex semibaccata A. C. Sanders 1990-10-6 10192 Orange Newport Bay, North Star County Beach area on the southwest end of the bay, ca. 2.0 km inland of Highway 1. 0 Comment
  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
  UCR46567  Atriplex semibaccata B. G. Pitzer, D. C. Hawks 1986-10-21 0344 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
  POM279025  Atriplex semibaccata Grant D. Brown 1949-10-9 400 Orange Three Arches, 2 miles S of Laguna Beach on Hwy. Alt. 101. 30 Comment
  RSA234479  Atriplex semibaccata James Henrickson 1970-7-25 5034 Orange 3.5 miles NW of Huntington Beach on sandy margin of Bolsa Bay, 1/4 mile SE of Warner Ave. along Pacific Coast Hwy. 0 Comment
  RSA5868  Atriplex serenana C. B. Wolf 1932-9-13 4018 Orange Bryant Ranch. 3/10 miles W of Los Alamitos Blvd.700 ft. south of Bryant Ave., (800 ft. east & 700 ft. south of NW corner of SW 1/4 sec. 30 T4S R11W) 7 Comment
  UC536963  Atriplex serenana var. serenana Lawrence M. Booth 1932-7-25 1315 Orange 2 mi from ocean (Santa Ana River); Santa Ana River Comment
  RSA734916  Atriplex suberecta A. C. Sanders, Fred M. Roberts 2008-6-17 35472 Orange Peninsular Range; Santa Ana Mtns: Lomas de Santiago, Augustine staging area near Limestone Canyon Rd. gate at Santiago Cyn Rd. 260 Comment
  RSA234520  Atriplex watsonii James Henrickson 1970-7-25 5033 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
  RSA453975  Atriplex watsonii F. R. Fosberg 1931-8-19 7285 Orange Newport Bay. 0 Comment
  RSA697700  Avena barbata Anonymous s.n. Orange Orange County park Comment
  RSA732069  Avena barbata A. C. Sanders, Fred M. Roberts 2008-3-25 34517 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  UC577599  Avena fatua A. Lewis Apr 1934 Orange San Joaquin Hills Corona Quadrangle Comment
  UCSB42557  Avena fatua Romspert, Alan 1966-3-2 Orange Carbon Canyon, 0.5 mi E of Carbon Canyon Dam Comment
  RSA21069  Azolla filiculoides Ramon Valverde 1938-8-4 9435 Orange Rancho Santa Ana, Santa Ana Canyon. 122 Comment
  IRVC29764  Baccharis douglasii Barry S. Nerhus, Mark A. Elvin 2006-11-4 4 Orange Huntington Beach, Bolsa Chica Wetlands, SW portion of Reserve beside Pacific Coast Highway. Southern Coastal 0 Comment
  RSA151095  Baccharis douglasii Peter H. Raven 1961-10-15 16861 Orange Coast Hwy 2 miles SE of Sunset Beach 0 Comment
  RSA232226  Baccharis emoryi James Henrickson 1970-10-3 5361 Orange 2 miles NW of Huntington Beach, common along raised roadsides in southern open portion of Bolsa Chica Salt Marsh. 0 Comment
  JEPS57449  Baccharis glutinosa L. R. Heckard with T. I. Chuang and R. Bacigalupi 1968-7-16 2044 a Orange north of (across U.S. Highway 101 from Huntington State Beach) Newport Beach; Bolsas Marsh Comment
  RSA653414  Baccharis malibuensis R. E. Riefner, A. Wolf 2000-8-23 20 -732 Orange NCCP North Ranch Policy Plan Area. Fremont Canyon: N. of Santiago Creek & immediately S. of major stream fork 305 Comment
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Jan 6 2018
  UCD129392  Baccharis malibuensis R. E. Riefner Jr.; A. Wolf 2000-8-23 20- 732 Orange NCCP North Ranch Policy Plan Area. Fremont Canyon: north of Santiago Creek and immediately south of major stream fork. 304 Comment
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Jan 6 2018
  UCR205873  Baccharis malibuensis R. E. Riefner Jr. 2008-7-2 08- 181 Orange Santa Ana Mountains, Irvine Ranch Reserve, Fremont Canyon Conservation Easement, east Fremont Canyon, power line access road off Lakeview SCE Road 660 Comment
  RSA741700  Baccharis malibuensis R. E. Riefner Jr. 2008-7-17 08 -241 Orange Santa Ana Mts., Irvine Ranch Reserve, Fremont Canyon Conservation Easement, east Fremont Canyon, Black Star SCE Rd. 600 Comment
  CAS-BOT-BC99441  Baccharis pilularis Carl B. Wolf 1934-12-26 6262 Orange south end of town of San Clemente 15 Comment
  RSA731920  Baccharis pilularis Fred M. Roberts, Sandy Leatherman 2007-11-27 6659 Orange Anaheim: Santa Ana River, Santa Ana Canyon, just west of Horseshoe Bend on S side of E La Palma Ave., about 0.3km E Weir Cyn. Rd. bridge. 100 Comment
  UCR209677  Baccharis pilularis A. C. Sanders, Fred M. Roberts, Jutta Burger 2009-10-21 37204 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, along SW side of Santiago Canyon Rd. near south edge of Irvine Lake 252 Comment
  UCR66992  Baccharis pilularis A. C. Sanders 1990-10-6 10200 Orange South Coast, Newport Back Bay, SW side at North Star County Beach, SW end of the bay, c. 2 km inland from Hwy 1/ Pacific Coast Hwy 3 Comment
  IRVC21308  Baccharis pilularis subsp. consanguinea Fred M. Roberts 1983-12-9 1152 Orange UCI Ecological Preserve, 0.8km SSW campus center, Irvine 70 Comment
  UCR222861  Baccharis pilularis subsp. consanguinea T. B. Salvato 2010-10-27 5131 Orange South Coast, Dana Point Headlands, Hilltop Park, north of Scenic Dr. and west of Green Lantern St., overlooking Dana Point Harbor 84 Comment
  CAS-BOT-BC106731  Baccharis salicifolia Ira L. Wiggins 1965-10-27 20309 Orange Banks of sluggish stream along Brea Canyon Road, just SW of Los Angeles County Line. Comment
  LA203019  Baccharis salicifolia James Lauter; 1953-4-25 sn Orange U.S. Highway 101, 17 mi. S of Laguna, San Mateo Creek bed Comment
  POM202374  Baccharis salicifolia L. M. Booth 1932-6-9 1179 Orange Santa Ana River, 1 mile from ocean. Comment
  RSA184139  Baccharis salicifolia I. L. Wiggins 1966-2-4 20418 Orange Watercourse near mouth of Trabuco Canyon.Waterfront St. near Mission Rock Terminal, San Francisco Comment
  UCR186689  Baccharis salicifolia T. B. Salvato, Katie Kurtz, Mitch Provance 2006-10-15 1911 Orange South Coast, Irvine, San Diego Creek flood control channel, between Campus Drive and Michelson Drive 6 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
  JEPS21243  Baccharis salicifolia subsp. salicifolia L. M. Booth 1933-10-18 Orange Newport Beach Comment
  UCD129397  Baccharis salicina Ira L. Wiggins 1965-11-6 20338 Orange Kraemer Oil Estates, near well no. 15, near end of county road constituted by continuation of Orangethorpe Ave. Comment
  RSA362299  Baccharis sarothroides Karlin G. Marsh 1986-12-15 s.n. Orange Yorba Linda: Santa Ana Canyon, Santa Ana River 105 Comment
  SD181717  Baccharis sergiloides Scott D. White 1998-10-15 7187 Orange Yorba Linda, 0.5 mile south of Telegraph Canyon between Ohio St. and Fairmont. 149 Comment
  RSA696792  Baccharis viminea R. H. McArthur 1934-2-3 s.n. Orange Roadside beyond El Modena Hills. Drainge Wash. Comment
  SEINET7003043  Baeria chrysostoma Wanda P. Vestal, A. G. Vestal 1955-3-24 3451 C Orange Bank along road, Trabuco Canyon, about 5 miles east of El Toro. Comment
  CAS-BOT-BC334499  Bahiopsis laciniata R. E. Riefner, Jr. 2013-4-5 13 -56 Orange Anaheim Hills, vicinity Hidden Canyon Rd. at Avenue De Santiago 305 Comment
  RSA798094  Barbarea orthoceras R. F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49590 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74) Comment
  CHSC26008  Bassia hyssopifolia James Henrickson 1970-7-24 4953 Orange 1 1/2 miles NW of Huntington Beach, along border of Bolsa Chico Salt Marsh at SW end of Huntington Beach Mesa. 7 Comment
  SBBG47293  Bassia hyssopifolia R. N. Philbrick 1973-8-31 Orange marsh just E of University of California, Irvine Comment
  UCR96859  Bassia hyssopifolia Scott D. White 1993-4-28 1283 Orange Pacific slope, Tustin Marine Corps Air Station, NW of Peters Canyon Channel, between Moffett Dr. & Warner Comment
  POM122280  Batis maritima Marcus E. Jones 1924-8-26 s.n. Orange Balboa Comment
  POM201794  Batis maritima L. M. Booth 1932-8-5 1349 Orange Santa Ana Delta Comment
  RSA678457  Batis maritima Valerie Soza, Kevin B. Clark, LeRoy Gross, Will Miller, Fred Roberts, Gary D. Wallace 2001-4-4 1110 Orange Seal Beach National Wildlife Refuge: Seal Beach U. S. Naval Weapons Station, across access road from Nature Center (Bldg 226). 3 Comment
  SEINET6418583 Image available Batis maritima Lawrence M. Booth 1932-1 1184 Orange Newport Bay Comment
  SFV20021  Batis maritima A. Dittmer, S. Dark 2004-10-3 76 Orange Bolsa Chica wetlands. South side of public parking lot off Highway 1. Comment
  RSA734857  Bebbia juncea A. C. Sanders, Mitch Provance 2008-5-20 35404 Orange Lomas de Santiago area, Santiago Creek Canyon, c. 3/4 mile below Modjeska Canyon confluence 345 Comment
  UCR151028  Bebbia juncea Scott D. White 1997-5-6 5034 Orange Peninsular Ranges; Santa Ana Mountains, Lomas de Santiago; Santiago Canyon, c. 1.5 mi N of Modjeska Canyon 366 Comment
  CAS-BOT-BC106423  Bebbia juncea var. aspera John Thomas Howell 1927-6-2 2412 Orange Southern Puente Hills in teh Santa Ana Canyon [Canon] 152 Comment
  IRVC22020  Bebbia juncea var. aspera D. Bramlet 1985-7-2 AH-1 Orange Anaheim Hills Golf Course, on knoll near #3 green, Anaheim 183 Comment
  LA204060  Berberis pinnata subsp. pinnata W. E. Pequegnat; 1937-9-3 77 Orange Santa Ana Mountains, Santiago Peak 1066 Comment
  CAS-BOT-BC102098  Bidens laevis John Thomas Howell 1927-10-23 3170 Orange Santa Ana River bottom, Santa Ana Canon 152 Comment
  RSA717046  Bidens laevis Fred M. Roberts 2005-10-3 6289 Orange San Juan Capistrano: San Juan Creek, La Novia Road bridge to 100m E of bridge, 1.4km E Mission San Juan Capistrano. 27 Comment
  RSA795433  Bidens laevis W. R. Ferren 1991-12-1 EPA- 13 Orange San Joaquin Marsh north of San Diego Creek and east of MacArthur Boulevard. Comment
  CAS-BOT-BC127998  Bidens pilosa Ira L. Wiggins 1965-12-18 20426 Orange upper edge of Hillcrest Park, Fullert6on Comment
  UCD129567  Bidens pilosa Ira L. Wiggins 1965-11-5 20328 Orange Orange Grove on north side of Chapman Avenue near Kraemer Road, Fullerton. Comment
  RSA0012750  Bloomeria crocea var. crocea Fred M. Roberts 2012-5-10 7575 Orange San Joaquin Hills: Buck Gully, south tributary, north slope Pelican Hill, just north of Pelican Hills Drive, 0.7 km N Pelican Hill summit. 154 Comment
  SD247271  Bloomeria crocea var. crocea R. E. Riefner Jr. 2014-5-13 14 120 Orange City of San Clemente, Rancho San Clemente Trail, E ca. 0.15 mi from Ave Salvador and S cal. 0.1 mi off Utility Access Road. 238 Comment
  RSA584713  Bloomeria crocea var. crocea Fred M. Roberts 1989-5-18 4373 Orange Santa Ana Mountains: Upper Gypsum canyon, above ridge road, ca. 6.4 km WSW Sierra Peak. 415 Comment
  RSA0093406  Bolboschoenus maritimus D. E. Bramlet 2009-11-20 4418 Orange South Coast: San Diego Creek between Irvine and Newport Back Bay. 4 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
  UCR100445  Bolboschoenus maritimus subsp. paludosus B. G. Pitzer 1996-4-30 2772 Orange South Coast, Upper Newport Bay, Calif. Dept. Fish & Game Ecological Reserve, off (W of) Jamboree Road 6 Comment
  UCR158463  Bolboschoenus maritimus subsp. paludosus Adrian Wolf 1998-5-27 322 Orange South Coast, Newport Slough, south of oil fields, between Huntington Beach, Costa Mesa and Newport Beach, just south of the channelized mouth of the Santa Ana River 2 Comment
  UC520300  Bolboschoenus robustus Joseph Andorfer Ewan 1932-7-29 7728 Orange Newport Lagoon Comment
  UC712166  Bothriochloa barbinodis Charles B. Fiker 1944-7-7 3139 Orange Trabuco Canyon, on Bill Rochester Ranch Trabuco Canyon Comment
  UCD169656  Bothriochloa barbinodis R. F. Thorne; E. W. Lanthrop, W. Wisura 1977-7-8 49623 Orange Santa Ana Mountains: along Ortega Highway (74), about 1/4 mile above San Juan Fire Station. 600 Comment
  CAS-BOT-BC95405  Bowlesia incana John Thomas Howell 1928-2-26 s.n. Orange Hills on N side of Santa Ana Canyon 152 Comment
  IRVC18518  Bowlesia incana A. B. McGee 1981-3-27 Orange UCI Ecological Preserve. Irvine Comment
  POM8745  Bowlesia incana P. A. Munz, R. D. Harwood 1920-4-25 3723 Orange Santa Ana Mountains, Silverado Canyon. 549 Comment
  RSA60252  Bowlesia incana E. K. Balls 1950-3-7 14446 Orange Rancho Santa Aa Botanic Garden. Comment
  UCSB52932  Brachypodium distachyon Roberts, Fred; Marsh, K. 1983-5-13 Orange Dana Point Headlands; S of Pacific Coast Hwy, 0.5 km NW Dana Point Harbor; 0.4 km SSW Richard Henry Dana School 80 Comment
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Jan 27 2021
  IRVC1029  Brassica geniculata L. Barnes 1965-5-1 Orange Corona del Mar, Evening Canyon Rd. Newport Beach Comment
  UCR177426  Brassica kaber Scott D. White, Amanda Duchardt 2003-3-27 8849 Orange Peninsular Ranges/Santa Ana Mtns, Canyon bottom and W-facing slopes above Canada Gobernadora 183 Comment
  CDA25879  Brassica nigra D. D. Nguyen, C. Nguyen 2006-2-4 3 Orange Southern Coastal; San Joaquin Marsh; northwest edge of Marsh. Comment
  IRVC20785  Brassica nigra Fred M. Roberts, S. L. Fritzke 1982-4-2 468a,b,c Orange hills, 3.5km ESE Aliso Peak; 3.2km ESE Alicia Fire Station, N of Del Avion, Laguna Niguel 100 Comment
  IRVC20786  Brassica nigra Fred M. Roberts, S. L. Fritzke 1982-4-2 468a,b,c Orange hills, 3.5km ESE Aliso Peak; 3.2km ESE Alicia Fire Station, N of Del Avion, Laguna Niguel 100 Comment
  RSA0066349  Brassica nigra A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34626 Orange Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir. 280 Comment
  UCR96201  Brassica nigra B. G. Pitzer 1996-4-30 2808 Orange San Joaquin Hills, Crystal Cove State Park, south of City of Irvine on State Hwy 1 (Pacific Coast Hwy) 15 Comment
  CAS-BOT-BC30255  Brassica nigra Alice Eastwood 1936-4-5 s.n. Orange Santa Ana. Bixby Botanic Garden. Comment
  RSA5578  Brassica rapa C. B. Wolf 1932-6-28 s.n. Orange Bryant Ranch: along western half of north boundary of 40 acre Valencia orange grove at Bryant Ave. and Hansen Road. 9 Comment
  RSA588769  Brodiaea jolonensis Fred M. Roberts 1990-5-7 4595 Orange Rancho Mission Viejo: Ridge south of Blind Canyon, TRW Lease Holding, 4.9 km NE Clemente Survey Marker. 152 Comment
  RSA592065  Brodiaea jolonensis R. E. Riefner 1996-5-19 96 -89 Orange Pico Ave. near Coast Hwy. Comment
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Aug 15 2016
  LA13709  Bromus carinatus LeRoy Abrams; 1903-4-18 3271 Orange San Juan Capristrano Comment
  SEINET3921870  Bromus carinatus Steve Boyd, Tim Ross 1992-5-19 7417 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of the wilderness along Lucas Canyon Trail from access road to Rancho Carrillo (7S06) north into Aliso Canyon.; 0 366 Comment
  CAS-BOT-BC149276  Bromus carinatus var. carinatus Ira L. Wiggins 1966-3-16 20528 Orange Roadside bank near entrance to Firestone Boy Scout Reservation. Comment
  RSA0073653  Bromus diandrus Fred M. Roberts 2010-3-12 7182 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
  UCR48031  Bromus diandrus Jack Easton 1987-4-21 s.n. Orange Southern Coast, Kain property, San Clemente, mouth of Trafalgar Canyon, just behind the beach 30 Comment
  RSA650415  Bromus diandrus Bob Edwards s.n. Orange Found in open fields, 6 miles east Orange near Irvine Park. 106 Comment
  UCR149408  Bromus hordeaceus Jeffrey Ross, Roselinde Zaka 1998-5-2 Orange South Coast, North side of San Joaquin Hills; William R. Mason Regional Park, near intersection of Yale Avenue and University Drive 27 Comment
  RSA0013861  Bromus madritensis Fred M. Roberts 2012-4-24 7517 Orange San Joaquin Hills: Buck Gully, west of intersection of Ridge Park Road and Newport Coast Drive, 1.5 km W Signal Peak. 179 Comment
  UCSB47581  Bromus madritensis subsp. rubens Roberts, Fred 1980-4-3 Orange Along Hwy 74, 0.2 km SW of Orange-Riverside Co. line, 0.4 km NNE Lower San Juan Picnic Ground, San Juan Cyn; Santa Ana Mtns 128 Comment
  RSA737546  Bromus rubens Fred M. Roberts 2008-3-12 6715 Orange Dana Point: Dana Point Headlands CNLM Preserve, western side, c.a. 0.8 km W Marine Institute (Dana Point Harbor). 50 Comment
  RSA0042732  Bromus rubens David Barrios 1991-5-1 18 Orange 1500 ft. Northwest of Fairmont Ave and Quail cir., Yorba Linda. 365 Comment
  SEINET11675600  Bromus rubens J. F. Bright, Wyman, C. 1933-1 8209 Orange near LaGuna Beach Comment
  UCR151389  Cakile maritima Valerie Soza, Kevin Clark, , LeRoy Gross, Will Miller,, Fred M. Roberts, G. D. Wallace 2001-4-4 1113 Orange Coastal Plains & Basins; Los Angeles Basin region, Anaheim Bay: Seal Beach U. S. Naval Weapons Station, southwestern edge of Seal Beach National Wildlife Refuge. 3 Comment
  CHSC109281  Calandrinia breweri R. E. Riefner Jr. 2008-5-20 08 -104 Orange Irvine Ranch Reserve, North Irvine Ranch, western Fremont Canyon, Windy Ridge Rd. UTM: 11S 0435915E. 530 Comment
  RSA734964  Calandrinia breweri A. C. Sanders, Fred M. Roberts, A. O Neal 2008-5-9 35314 Orange Weir Canyon, along fire line/bulldozer cut, c. 1.5 mi. east of Walnut Cyn Reservoir. 346 Comment
  SBBG122652  Calandrinia breweri A. C. Sanders, F. M. Roberts, A. O'Neal 2008-5-9 35314 Orange Weir Cyn, along fire line/bulldozer cut, ca. 1.5 mi E of Walnut Cyn Reservoir 346 Comment
  SEINET6168371  Calandrinia breweri R. E. Riefner Jr. 2008-1 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. USGS 7.5' Quad: Black Star Canyon 496 Comment
  UCR203903  Calandrinia breweri R. E. Riefner Jr. 2008-5-20 08- 104 Orange Irvine Ranch Reserve, north Irvine Ranch, western Fremont Canyon, Windy Ridge Road 531 Comment
  RSA681015  Calandrinia ciliata Fred M. Roberts, David E. Bramlet 2003-3-13 5578 Orange Donna O Neill Land Conservancy: Ridge west of Christianitos Canyon, 1.6 km NW Sycamore Gate. 197 Comment
  UCR191231  Calandrinia ciliata A. C. Sanders, Fred M. Roberts 2008-4-22 35043 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, valley at south end of Loma Ridge and at head of Limestone Canyon, c. 2.5 miles SW of Silverado, above spring shown on topo map 457 Comment
  UCR192454  Calandrinia ciliata A. C. Sanders, Fred M. Roberts 2008-3-25 34576 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
  UCR217453  Calandrinia ciliata Mark A. Elvin 2003-1-26 2231 Orange South Coast, Irvine, UC Irvine Open Space Preserve, NE side, between core of UCI campus (E Peltason Dr.) and Hwy 73 69 Comment
  SEINET11861030  Calendula arvensis J. F. Bright, Wyman, C. 1933-3-5 8013 Orange in Santa Ana foothills Comment
  RSA713907  Callistemon citrinus R. E. Riefner Jr. 2005-11-23 5 -773 Orange City of Newport Beach, Upper Newport Bay, E of Jamboree Rd and S of Bayview Way at Bonita Creek channel. 6 Comment
  UCR217462  Callistemon citrinus Mark A. Elvin 2003-2-23 2309 Orange South Coast, Irvine, San Joaquin Marsh along the berm of San Diego Creek 3 Comment
  UCR210367  Callistemon viminalis T. B. Salvato, Billy Deane 2006-10-16 1942 Orange South Coast, Irvine, San Diego Creek flood control channel, between Michelson Drive and the 405 FWY 12 Comment
  RSA48924  Calochortus catalinae Philip A. Munz 1949-5-26 13379 Orange Head of Sierra [Freemont] Canyon, Santa Ana Mountains. 732 Comment
  RSA539373  Calochortus catalinae Fred M. Roberts, Karlin G. Marsh 1989-3-7 4192 Orange Lomas de Santiago: Loma Ridge, tributary to Hicks Canyon, ca. 1.9 kilometers WSW Bee Survey Mark. 134 Comment
  RSA552928  Calochortus catalinae Fred M. Roberts, Carol A. Roberts 1989-5-11 4350 Orange Santa Ana Mountains: Upper Gypsum Canyon, along ridge road, 5.6 kilometers SW Sierra Peak. 472 Comment
  RSA749297  Calochortus catalinae Fred M. Roberts 1999-4-21 5183 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
  RSA749314  Calochortus catalinae Fred M. Roberts 2008-3-25 6791 Orange Loma Ridge: Upper Hicks Cyn. near Haul Road, c.a. 4.4 km by road from Portola Pkwy. and 3.2 km ENE Rattlesnake Cyn. Reservoir. 269 Comment
  SD234742  Calochortus catalinae A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34639 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir. 395 Comment
  UCR191243  Calochortus catalinae A. C. Sanders 2008-4-29 35136 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
  UCR191776  Calochortus catalinae A. C. Sanders, Fred M. Roberts 2008-3-25 34568 Orange Peninsular Range; Santa Ana Mtns., saddle on ridge near head of Weir Canyon, 5.3 miles ENE of Villa Park, 3.1 mi. N of (Santiago Reservoir) Irvine Lake 405 Comment
  UCR209385  Calochortus catalinae Fred M. Roberts 2008-3-25 6791 Orange Loma Ridge, Upper Hicks Canyon near Haul Road, c. 4.4 km by road from Portola Parkway, and 3.2 km east northeast Rattlesnake Canyon Reservoir 269 Comment
  RSA708370  Calochortus invenustus Fred M. Roberts, Robert L. Allen, Chris Barnhill, Nancy Hatfield 2005-5-30 6241 Orange Modjeska Peak summit, c.a. 60m south of highest point. 1675 Comment
  RSA786593  Calochortus invenustus Doris Bowers 1971-4-19 1692 Orange Black Star Canyon Indian Site 762 Comment
  UC337918  Calochortus plummerae unknown 1891-8-15 Orange Santa Ana Canyon Comment
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Feb 19 2014
  POM1699  Calochortus splendens D. L. Crawford 1916-5-5 s.n. Orange Laguna Beach. Comment
  CAS-BOT-BC492697  Calochortus splendens D. L. Crawford 1916-5-5 s.n. Orange Laguna Beach Comment
  CAS-BOT-BC492698  Calochortus splendens P. C. Everett 1935-6-18 7199 Orange Santa Ana Mts., Main Divide Motorway; 7 miles from Santiago Peak 1310 Comment
  CAS-BOT-BC492706  Calochortus splendens Ethel H. Campbell 1921-5-1 s.n. Orange Laguna Beach Comment
  RSA369038  Calochortus splendens N. C. Cooper 1944-6-4 1316 Orange Elsinore Mountain. 1067 Comment
  UCSB50637  Calochortus weedii Roberts, Fred 1982-7-8 Orange Laguna Niguel; canyone near Pacific Island Dr., 1.4 km ESE Aliso Peak, 1.1km NE Bench Mark 133 205 Comment
  RSA741725  Calochortus weedii var. intermedius R. E. Riefner 2008-6-3 8 -138 Orange Irvine Ranch Reserve, Fremont Canyon Conservation Easement, E fork Fremont Canyon, Black Star SCE Rd. 622 Comment
  RSA741726  Calochortus weedii var. intermedius R. E. Riefner 2008-6-11 8 -150 Orange Irvine Ranch Reserve, Fremont Canyon Conservation Easement, W Fremont Canyon, Coalmine SCE Rd. 366 Comment
  SBBG19551  Calochortus weedii var. intermedius H. F. Copeland 1938-6-29 1574 Orange back of Laguna Beach Comment
  UCR132987  Calochortus weedii var. intermedius Adrian Wolf 2000-6-20 463 Orange Santa Ana Mtns., North Ranch Policy Plan Area, 0.62 km NNW of mouth of Black Star Canyon 305 Comment
  UCR230826  Calochortus weedii var. intermedius Dick Newell, Don Millar, Shara Harris 2011-6-21 187 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Agua Chinon Wash 225 Comment
  RSA733692  Calycadenia tenella Keith E. Hoffmaster 1934-5-1 359 Orange San Onofre Comment
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Nov 19 2013
  RSA542425  Calycadenia tenella Fred M. Roberts 1988-5-25 3979 Orange Rancho Mission Viejo: Lower Canada Chiquita, 2.0 km SSE Medium Rancho Survey Mark 88 Comment
  RSA606369  Calycadenia tenella Jon E. Keeley 1994-6-1 25365 Orange First year burn, Starr Ranch 390 Comment
  RSA92227  Calycadenia tenella F. W. Peirson 1922-5-18 1353 Orange Santa Ana River 122 Comment
  UCR191011  Calystegia macrostegia A. C. Sanders, Fred M. Roberts 2008-4-22 35016 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
  CHSC13500  Calystegia macrostegia H. E. Hemasth 1974-4-11 1 Orange Side of road, ca 0.7 mi NE of the Mission San Juan Capistrano on Hwy 74. 36 Comment
  CSUSB666  Calystegia macrostegia subsp. cyclostegia Sue Freeman 1966-3-27 Orange Laguna. About 30 yards off Wave Street in Laguna (end of street); on grassy hillside 100 feet above ocean and over crest of hill from it. 30 Comment
  RSA683073  Calystegia macrostegia subsp. intermedia Fred M. Roberts 2003-3-13 5591 Orange Donna O'Neill Land Conservancy: Ridge west of Christianitos Canyon, 1,320m NW Sycamore Gate and 880m W Cristianitos Rd. 179 Comment
  POM311831  Calystegia macrostegia subsp. macrostegia E. W. Lathrop 1958-4-2 126 Orange Salt Creek Beach, 5-10 miles S. of laguna on Hwy. 101. 15 Comment
  RSA708723  Calystegia occidentalis subsp. fulcrata Fred M. Roberts, Robert L. Allen, Chris Barnhill, Nancy Hatfield 2005-5-30 6225 Orange west slope of Modjeska Peak, Harding Canyon watershed, Main Divide Road, 0.46km W summit. 1670 Comment
  RSA71116  Calystegia sepium subsp. limnophila F. W. Peirson 1926-9-26 7086 Orange Wintersberg. Near to sea level. 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
  UCR193058  Camissonia bistorta A. C. Sanders, Fred M. Roberts 2008-6-17 35504 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, Windy Ridge Rd., saddle on ridge at head, above the Eastern Transportation Corridor 400 Comment
  POM201888  Camissonia cheiranthifolia subsp. suffruticosa L. M. Booth 1932-5-25 1114 Orange Balboa Island, Newport Bay. Comment
  RSA234480  Camissonia cheiranthifolia subsp. suffruticosa James Henrickson 1970-7-24 5006 Orange 3 miles NW of Huntington Beach on sandy ''Rabbit'' Island in Bolsa Chica Salt March near Inner Bolsa Bay. 1 Comment
  UC1377639  Camissoniopsis bistorta John Ingram 1960-3-14 244 Orange on La Palma Avenue two blocks e Knotts Berry Farm; Buena Park Comment
  UC942888  Camissoniopsis bistorta Lewis S. Rose 1949-4-18 49050 Orange sea-bluffs Dana Point Comment
  CAS-BOT-BC160453  Camissoniopsis cheiranthifolia subsp. suffruticosa David D. Keck 1933-9-21 2523 Orange Sunset Beach Comment
  UC422961  Camissoniopsis cheiranthifolia subsp. suffruticosa D. L. Crawford 742 Orange Aliso Pt. Laguna Beach Region (shore cliffs) Comment
  UC635392  Camissoniopsis cheiranthifolia subsp. suffruticosa H. L. Mason 1926-4-25 2918 Orange 5 mi s Laguna Comment
  UCSB48117  Camissoniopsis cheiranthifolia subsp. suffruticosa Fritzke, Sue; Roberts, Fred 1982-4-3 Orange Dana Point Headlands: north of Dana Strand Road, 0.5km W Dana Point Harbor; 0.8 km SSW Richard Henry Dana School 80 Comment
  CAS-BOT-BC37593  Cardamine californica C. B. Wolf 1931-1-30 1826 Orange Santa Ana Mountains. Claymine Canyon. 304 Comment
  CSUSB653  Cardamine californica R. Cooper 1968-2-11 S. N. Orange San Joaquin Hills, near Laguna Beach Comment
  OBI6109  Cardamine californica Carl B. Wolf 1931-3-6 1851 Orange Trabuco camp ground, Trabuco cyn, W slope of the Santa Ana Mts 610 Comment
  UCR262008  Cardamine californica Dick Newell, Don Millar 2015-2-10 387 Orange South Coast, Laguna Canyon, on Willow Canyon Trail, 0.14 mi. due west of Laguna Canyon Rd. 80 Comment
  POM202599  Cardaria draba L. M. Booth 1932-5-15 1197 Orange E of Hungtington Beach. Comment
  RSA23656  Cardaria draba E. R. Johnson 1939-4-25 9496 Orange Santa Ana Canyon, Rancho Santa Ana, along Santa Fe RR tracks. 122 Comment
  JEPS51520  Cardionema ramosissimum Lawrence M. Booth 1932-5-24 1093 Orange Newport Bay Comment
  RSA747710  Cardionema ramosissimum Fred M. Roberts 2008-4-16 6913 Orange Dana Point: Dana Point Headlands, CNLM Preserve, 0.8 km W Marine Institute, Dana Point Harbor. 60 Comment
  UCR177287  Cardionema ramosissimum Scott D. White, Amanda Duchardt 2003-5-1 9149 Orange Santa Ana Mountains, Slopes above the west side of Canada Gobernadora and adjacent small canyon to the west 122 Comment
  UCR5159  Cardionema ramosissimum Barbara T. Gittins, O. F. Clarke 1966-3-19 902 Orange Pacific slope, Irvine Ranch, east of University of California Irvine campus, Newport Beach 91 Comment
  CSUSB712  Cardionema ramosissimum Barbara T. Gittins, Oscar F. Clarke 1966-3-19 Orange Newport Beach. Coastal foothills, Irvine Ranch, east of University of California at Irvine. Comment
  CAS-BOT-BC118506  Carex praegracilis Helen D. Geis 1902-4-1 567 Orange Ditch banks near Santa Ana Comment
  CAS-BOT-BC118487  Carex praegracilis Helen D. Geis 1902-4-1 s.n. Orange Peat Lands Comment
  CAS-BOT-BC118493  Carex praegracilis Helen D. Geis 1902-4-1 s.n. Orange Santa Ana, Peat lands Comment
  IRVC26693  Carex spissa Mark A. Elvin 2004-4-4 3230 Orange UCI Arboretum Southern Coastal 15 Comment
  UCR196320  Carpobrotus chilensis Mark A. Elvin, Dean Kelch 2006-12-9 5292 Orange South Coast, Newport Backbay, Big Canyon, lower end 3 Comment
  RSA113270  Carpobrotus chilensis E. K. Balls 1955-4-4 20418 Orange Coastal Strand, mouth of Santa Ana River, W bank, Hwy 101. 3 Comment
  RSA748267  Carpobrotus edulis A. C. Sanders, Fred M. Roberts 2008-6-17 35470 Orange Peninsular Range; Santa Ana Mtns: Lomas de Santiago, Augustine staging area near Limestone Canyon Rd. gate at Santiago Cyn Rd. 260 Comment
  UCR42442  Carpobrotus edulis A. C. Sanders 1986-5-31 6531 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
  RSA643429  Carthamus baeticus R. D. Goeden, D. W. Ricker 1965-7-7 s.n. Orange Puente Hills: Brea Blvd. at Tonner Cyn Rd. confluence of Brea and Tonner Canyons, NE edge of Brea 146 Comment
  POM193492  Castilleja affinis Helen E. Sweet 1928-08 s.n. Orange Santiago Canyon. Comment
  RSA588797  Castilleja affinis Fred M. Roberts, Dave Bontrager 1990-4-18 4563 Orange Rancho Mission Viejo: ridge between Christanitos and Gabino Canyons (Riverside Cement Lease Holding), 5.5 km SE Playa Survey Marker. 152 Comment
  RSA0010904  Castilleja affinis Mabel Harvey s.n. Orange Modjeska's Home Comment
  UC511102  Castilleja exserta Lyman Benson 1932-3-26 3191 Orange Dana Point 60 Comment
  HSC20876  Castilleja exserta subsp. exserta C. L. Hitchcock 1966-3-15 24134 Orange 1/2 mi. E of Brea Comment
  RSA743515  Castilleja exserta subsp. exserta Fred M. Roberts 2008-4-9 6866 Orange Dana Point: Dana Point Headlands, CNLM Preserve near Outlook 2, 0.7 km W Marine Institute (Dana Point Harbor). 52 Comment
  UC27265  Castilleja exserta subsp. exserta C. W. Hamlin 1896-1 17 Orange Buena Park Comment
  RSA764938  Castilleja foliolosa Doris Bowers 1971-4-19 1681 Orange Black Star Canyon Indian Site 762 Comment
  SBBG104116  Castilleja foliolosa B. Pitzer, S. Hemstreet 1992-5-27 1953 Orange USFS Rd 3S04 to Blue Jay Group Cmpgrd, off St Hwy 74, ca. 2 air mi W of El Cariso Cmpgrd 762 Comment
  UCR175052  Castilleja foliolosa Vanessa Lee 2005-4-24 s.n. Orange South Coast, Crystal Cove, Laguna Beach, above Pacific Coast Highway 61 Comment
  UCR241667  Castilleja foliolosa Dick Newell, Judy Booth 2013-6-2 333 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, Maple Springs Rd., 2.24 miles NE of Flores Peak 645 Comment
  RSA588889  Castilleja minor subsp. spiralis Fred M. Roberts Jr. 1990-6-4 4665 Orange Hall Canyon, 1.8 km NNW Mustang Spring at east edge of Flying B Ranch 421 Comment
  RSA663153  Castilleja minor subsp. spiralis R. E. Riefner 2000-3-26 30 -154 Orange NCCP North Ranch Policy Plan Area. Fremont Canyon: N. of major stream fork along W. channel drainage 335 Comment
  RSA734200  Castilleja minor subsp. spiralis Keith E. Hoffmaster 1934-7-15 117 Orange Santa Ana Mts (Modjeska) 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
  RSA702801  Caulanthus heterophyllus D. E. Bramlet, Fred M. Roberts 2003-5-1 3429 Orange Donna O Neill Reserve. The site is 412m N of Gato Cyn. and 107m W of Cristianitos Rd. 134 Comment
  UCR266296  Caulanthus heterophyllus D. E. Bramlet 2008-4-3 4153 Orange Peninsular Range; Santa Ana Mountains, South Bee Canyon, Bowerman landfill site, 1.2 km south of the Bee Canyon access road, and 122 m west of the active landfill 224 Comment
  RSA0054976  Ceanothus Keith E. Hoffmaster 1934-7-15 108 Orange Santa Ana mts. (Santiago can). Comment
  CAS-BOT-BC48494  Ceanothus crassifolius Marcus E. Jones 1930-3-3 26514 Orange Santa Ana mountains Comment
  RSA1443  Ceanothus crassifolius J. T. Howell 1929-1-24 1219 Orange near crest of Santa Ana Mts. south of Sierra Peak. 762 Comment
  RSA172250  Ceanothus crassifolius Robert F. Thorne 1963-7-26 32829 Orange Santa Ana Mts., Cleveland National Forest, Trabugo District. 1189 Comment
  UCR217288  Ceanothus crassifolius Mark A. Elvin, Laura Soloro, Adam Sriro 2003-1-10 2212 Orange Peninsular Range; Santa Ana Mtns., c. 1.6 mi. west of Sierra Peak along road to powerlines, near Claymont Clay Mine 457 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
  RSA703699  Ceanothus crassifolius var. crassifolius Fred M. Roberts, Arthur Davenport 2004-2-20 6026 Orange Santa Ana Mtns.: San Juan Canyon, SR 74, south side of road, 0.62 km SW San Lower San Juan Picnic Ground; 1.89 km WNW Sitton Peak. 390 Comment
  SBBG4144  Ceanothus crassifolius var. crassifolius M. Van Rensselaer 1941-5-30 1673 Orange Ortega Hwy (St Hwy 74) Comment
  RSA733936  Ceanothus divaricatus Keith E. Hoffmaster 1936-5-3 715 Orange Santa Ana Mts (Santiago Peak) Comment
  RSA733958  Ceanothus integerrimus Keith E. Hoffmaster 1936-5-3 716 Orange Santa Ana Mts (Santiago Peak) Comment
  UC718385  Ceanothus integerrimus P. C. Everett 1935-6-18 7214 Orange Summit of Santiago Pk. Santa Ana Mts. 1731 Comment
  RSA678517  Ceanothus integerrimus var. puberulus Fred M. Roberts, Kirsten Winter, Leanne Naue 1997-6-5 5040 Orange Santa Ana Mtns,: Santiago Peak, Main Divide Truck Trail at Orange-Riverside County line, 0.5km N summit. 1659 Comment
  LA44871  Ceanothus leucodermis W. Pequegnat; 1938-9-3 sn Orange Santa Ana Mountains, Ortega Rd 548 Comment
  RSA3025  Ceanothus leucodermis E. R. Johnson 1931-12-31 2641 Orange Racho Santa Ana, river bottom south of Ranch houses, ear the boudary benre. Comment
  RSA542421  Ceanothus megacarpus var. megacarpus Fred M. Roberts 1988-3-9 3341 Orange South Laguna; Hobo Canyon, ca. 0.8km NE Goff island. 49 Comment
  RSA542585  Ceanothus megacarpus var. megacarpus Fred M. Roberts 1989-2-23 4188 Orange Aliso-Wood Canyon Regional Park: Niguel Hill above Aliso Canyon along the northern edge of Sea View Pk., 1.2km ENE Aliso Pk. 250 Comment
  RSA0054960  Ceanothus oliganthus Keith E. Hoffmaster 1936-4-5 707 Orange Black Star can., Santa Ana Mts. Comment
  RSA95350  Ceanothus oliganthus F. W. Peirson 1925-4-11 5735 Orange slope above mill, in Silverado Canyon, Santa Ana Mountains. 915 Comment
  RSA398910  Ceanothus oliganthus var. oliganthus Christopher Davidson 1977-5-18 5599 Orange Santa Ana Mts. Cleveland Nat. Forest. Pleasants Peak (on Orange-Riverside Co. line). 1220 Comment
  CAS-BOT-BC63563  Ceanothus oliganthus var. orcuttii Carl B. Wolf 1941-8-15 11157 Orange Santa Ana Mts. along main divide motorway just no. of head of Trabuco truck trail. 1219 Comment
  RSA398926  Ceanothus oliganthus var. sorediatus Albert J. Perkins 1918-5-25 s.n. Orange Santiago Peak. Comment
  LA44892  Ceanothus palmeri W. Pequegnat; 1938-8-11 sn Orange Santa Ana Mountains, Santiago Peak 1734 Comment
  RSA748818  Ceanothus palmeri G. Gust, L. Nye 2005-3-12 563 Orange Cleveland National Forest, on Hwy 74 ca. 0.5 m W of county boundary with Riverside at a pullout. 401 Comment
  UC2042146  Ceanothus papillosus R. F. Thorne and C. W. Tilforth, E. W. Lathrop 1977-4-27 49697 Orange Northern Santa Ana Mountains: Sierra Peak. Comment
  RSA399812  Ceanothus papillosus var. roweanus Christopher Davidson 1977-5-18 8898 Orange Santa Ana Mts. Cleveland Nat. Forest. Pleasants Peak (on Orange-Riverside Co. line). 1220 Comment
  CHSC116480  Ceanothus papillosus var. roweanus R. F. Thorne; C. W. Tilforth, E. W. Lathrop 1977-4-27 49697 Orange Northern Santa Ana Mountains: Sierra Peak. Hydrothermally altered serpentine substrate with limited scrub growth. Comment
  RSA0029934  Ceanothus spinosus Fred M. Roberts 2013-5-30 7776 Orange Lomas de Santiago: Santiago Creek Wash, at Santiago Canyon Road bridge (south side), 0.3 km W jct. Silverado and Santiago Canyon Roads. 299 Comment
  RSA637494  Ceanothus spinosus Valerie L. Soza, LeRoy Gross 1999-6-8 503 Orange Santa Ana Mountains: Santiago and Modjeska Canyons, above Tucker Wildlife Sanctuary, above the town of Modjeska 518 Comment
  UC1281278  Ceanothus tomentosus H. E. McMinn 1935-6-22 3927 Orange w Covina; Santa Ana Mountains, w of Covina Comment
  UC219276  Ceanothus tomentosus P. A. Munz and I. M. Johnston 1922-5-19 5311 Orange Santa Ana River Canyon 457 Comment
Read comments
Aug 8 2010
  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
  UCR130341  Centaurea repens A. C. Sanders, Mark A. Elvin 2003-10-12 27321 Orange Southern Coastal Slope, Irvine, UCI Arboretum, UCI campus near intersection of Jamboree Blvd. and Campus Dr. 15 Comment
  IRVC27937  Centaurea repens A. C. Sanders, Mark A. Elvin 2003-10-12 27321 Orange Irvine; UCI Arboretum, UCI campus near intersection of Jamboree Blvd and Campus Dr. Southern Coastal 15 Comment
  RSA788969  Centaurium venustum Robert F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49576 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74). 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
  RSA0040038  Centranthus ruber Anonymous 1933-10-13 s.n. Orange Santa Ana. Comment
  CAS-BOT-BC288845  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
  JEPS20077  Centromadia parryi subsp. australis Peter H. Raven 1957-9-28 11376 Orange N limits of Surfside Comment
  UC935684  Centromadia parryi subsp. australis David D. Keck 1933-9-29 2537 Orange Seal Beach Seal Beach (alkaline fields adjoining tidelands) Comment
  UCR191015  Cerastium glomeratum A. C. Sanders, Fred M. Roberts 2008-4-22 35032 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Limestone Canyon, c. 2 miles SW of Silverado 396 Comment
  RSA156045  Cercocarpus betuloides Peter H. Raven 1962-5-18 17753 Orange [Santa Ana Mountains] Main Divide Truck Trail at saddle about 1 mile north of Santiago Peak. 1494 Comment
  UCR221892  Cercocarpus betuloides Dick Newell, Don Millar 2010-10-15 40 Orange South Coast, San Joaquin Hills, Laguna Wilderness parkm on the Willow Trail 220 Comment
  RSA787496  Cercocarpus betuloides var. betuloides Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49704 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  UCSB48217  Cercocarpus betuloides var. betuloides Roberts, Fred 1981-4-11 Orange Santa Ana Mtns., San Juan Canyon, Hwy 74, 2.7km ENE San Juan Guard Sta. 325 Comment
  LA31220  Cercocarpus minutiflorus Dave Verity; 1960-2-14 sn Orange near summit of Temple Hills Drive on e slope of ridge, San Juaquin Hills behind Laguna Beach Comment
  UCD170238  Cercocarpus minutiflorus K. M. Meyer; A. Townesmith 2007-3-10 5 Orange Cleveland National Forest, 0.5 mi. N Main Divide Rd./NF3S04, off Hwy. 74. Elsinore Mtns., ridge top. 917 Comment
  RSA648190  Chaenactis artemisiifolia Karl Price 1988-5-7 37 Orange An unnamed side canyon within Hot Springs Canyon. It is on Hot Springs Canyon Rd., 0.75 mi. North of Ortega Hwy. (74), 12.6 mi. East of San Juan Capistrano. 304 Comment
  RSA734657  Chaenactis artemisiifolia A. C. Sanders, Fred M. Roberts, Amber O'Neal, David E. Bramlet 2008-5-9 35317 Orange Weir Canyon, along fire line/bulldozer cut, c. 1.5 mi. east of Walnut Cyn Reservoir. 346 Comment
  UCR274177  Chaenactis artemisiifolia Dick Newell, Don Millar 2016-5-24 426 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Merkel Spur Trail at Limestone Ridge Road, 0.13 mile south of Cactus Canyon Road 417 Comment
  CAS-BOT-BC279499  Chaenactis artemisiifolia Steve Boyd; Tim Ross 1992-5-20 7454 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of the wilderness in Lucas Canyon along a new section of trail heading up major side canyon northward to Sitton Peak Road (7S09) 457 Comment
  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
  UCR93939  Chaenactis glabriuscula B. G. Pitzer 1996-4-30 2805 Orange San Joaquin Hills, Crystal Cove State Park, south of City of Irvine on State Hwy 1 (Pacific Coast Hwy) 15 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
  CAS-BOT-BC283936  Chaenactis glabriuscula var. glabriuscula John Thomas Howell 1927-6-2 2411 Orange Southern Puente Hills in the Santa Ana Canon [Santa Ana Canyon] 152 Comment
  POM351783  Chaenactis glabriuscula var. glabriuscula M. B. Dunkle 1938-6-23 5376 Orange San Juan Canyon. Comment
  RSA542246  Chaenactis glabriuscula var. glabriuscula Fred M. Roberts 1988-3-15 3872 Orange Rancho Mission Viejo: Central Gabino Canyon, 7km E Playa Survey Marker, 162 Comment
  UC450954  Chaenactis glabriuscula var. glabriuscula F. A. MacF. 1931-3-1 2969 Orange Laguna Beach Comment
  CAS-BOT-BC284202  Chaenactis glabriuscula var. lanosa LeRoy Abrams 1903-4-13 3254 Orange Buena Park Comment
  CAS-BOT-BC284203  Chaenactis glabriuscula var. lanosa P. C. Everett 1935-5-17 6865 Orange 7/8 mi. E. of Atwood, S. side of Santa Fe railroad tracks 152 Comment
  POM294107  Chaenactis glabriuscula var. megacephala Lyman Benson 1946-4-27 12053 Orange Corona Del Mar; Drainage area: Pacific Ocean. 15 Comment
  IRVC29873  Chamaesyce Mark A. Elvin, D. Kelch 2006-12-9 5301 Orange Newport Backbay; Big Canyon, lower end. Southern Coastal 3 Comment
Read comments
Jul 17 2015
  RSA658686  Chamaesyce albomarginata Sandy Gray 1981-04 8 Orange Hwy 142, 5miles west of Carida 3 miles east. Riverbank-across Riverbank Comment
  IRVC29716  Chamaesyce maculata Mark A. Elvin, Barry S. Nerhus 2006-11-4 5252 Orange Huntington Beach; 1.5 km SW of Wintersburg, SW of jct Slater and Goldenwest; Shipley Nature Center. Southern Coastal 1 Comment
  POM21180  Chamaesyce nutans Helen D. Geis 1902-04 s.n. Orange Roadside, Santa Ana Comment
  RSA788248  Chamaesyce polycarpa var. polycarpa R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49624 Orange Santa Ana Mountains: along Ortega Highway (74), about 1/4 mile above San Juan Fire Station Comment
  IRVC844  Chamomilla suaveolens E. McRae 1965-4-8 Orange Costa Mesa Comment
  IRVC3124  Cheilanthes clevelandii A. S. Boughey 127 Orange [San Juan Canyon], Ortega Hwy, 1mi E San Juan Guard Sta. Santa Ana Mountains Comment
  RSA685783  Cheilanthes newberryi M. B. Dunkle 1934-6-18 3981 Orange San Juan Canyon; Southern Coastal 305 Comment
  RSA797474  Cheilanthes newberryi R. F. Thorne 1977-11-21 49987 Orange Santa Ana Mountains: tributary canyon to San Juan Canyon about 2 miles above San Juan Fire Station Comment
  SD234927  Chenopodium album R. E. Riefner Jr. 2006-10-8 6 484 Orange South Coast: Irvine, San Diego Creek near 405 Freeway, between 405 and Laguna Rd. 50 Comment
  RSA184162  Chenopodium album I. L. Wiggins 1966-5-25 20664 Orange Parkway along south side of Nutwood Lane, margin of CSCF campus, Fullerton. Comment
  RSA696210  Chenopodium album Keith E. Hoffmaster 1927-5-18 s.n. Orange Santa Ana. Comment
  IRVC29696  Chenopodium ambrosioides Mark A. Elvin, Barry S. Nerhus 2006-11-4 5246 Orange Huntington Beach; 1.5 km SW of Wintersburg, SW of jct Slater and Goldenwest; Shipley Nature Center. Southern Coastal 1 Comment
  RSA64759  Chenopodium ambrosioides var. ambrosioides F. W. Peirson 1924-8-29 5079 Orange 6 miles from Balboa on road inland along creek. Comment
  RSA751427  Chenopodium berlandieri A. C. Sanders, Fred M. Roberts 2008-7-3 35676 Orange Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor. 365 Comment
  UCR193018  Chenopodium berlandieri A. C. Sanders, Mitch Provance 2008-5-20 35414 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago area, Santiago Creek Canyon, c. 3/4 mile below Modjeska Canyon confluence 355 Comment
  POM18120  Chenopodium berlandieri var. sinuatum P. A. Munz 1923-9-7 7746 Orange Santiago Peak. 1723 Comment
  POM183953  Chenopodium californicum P. A. Munz 1932-3-29 12186 Orange Costa Mesa. 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
  UC536904  Chenopodium macrospermum var. halophilum L. M. Booth 1933-9-8 1390 Orange Anaheim Marsh; coast of Orange Co. Comment
  RSA751792  Chenopodium murale A. C. Sanders, Fred M. Roberts 2008-7-3 35686 Orange upper Weir Canyon, along Windy Ridge Rd. at huge sandstone boulder (visible on Google Earth), 1.3 mi. SE of Walnut Canyon Reservoir 314 Comment
  UCR222390  Chenopodium murale Mark A. Elvin 2003-1-26 2244 Orange South Coast, Irvine, UC Irvine Open Space Preserve, NE side, between core of UCI campus (E Peltason Dr.) and Hwy 73 69 Comment
  UCR99873  Chenopodium murale Scott D. White 1993-3-5 1113 Orange Tustin. Marine Air Corps Air Station: SE of Red Hill Ave and NE of Barranca 15 Comment
  RSA696281  Chenopodium murale Keith E. Hoffmaster 1927-02 s.n. Orange Santa Ana. Comment
  UC729551  Chlorogalum pomeridianum var. pomeridianum Carl B. Wolf 1932-7-2 3828 Orange hillside 1/2 mi above La Vida Springs; Carbon Canyon 243 Comment
  RSA588980  Chorizanthe procumbens D. E. Bramlet 1994-6-23 2388 Orange San Joaquin Hills. ''Pass area'' between Little Sycamore and Camarillo Canyons. The site is 945m of Camarillo Canyon Road and 5 m west of the existing dirt road. 122 Comment
  UC1952562  Chorizanthe procumbens D. Bramlet 1994-6-23 2388 Orange San Joaquin Hills. Pass area between Little Sycamore and Camarillo Canyons. The site is 945 m north of Camarillo Canyon and 213 m west of Laguna Canyon Road and 5 m west of the existing dirt road. Comment
  UCR121046  Chorizanthe procumbens D. E. Bramlet 1983-5-28 1388 Orange South Coastal Plains, Dana Point, 154 m SW of Pacifc Coast Highway 73 Comment
  UCR266291  Chorizanthe procumbens D. E. Bramlet 2002-4-15 3267 Orange Pass area in Little Sycamore Canyon 122 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
  CAS-BOT-BC255255  Chorizanthe staticoides John Thomas Howell 1927-6-8 2461 Orange Southern Puente Hills in the Santa Ana Canyon 228 Comment
  POM2200  Chorizanthe staticoides D. L. Crawford 1916-5-5 s.n. Orange Laguna Beach Comment
  RSA392685  Chorizanthe staticoides Ella M. Kennedy 1923-5-14 s.n. Orange Laguna Beach. 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
  RSA690974  Chorizanthe staticoides Scott D. White, Michael Honer 2003-5-29 9423 Orange Santa Ana Mtn foothills: Rancho Mission Viejo. Hills above Canada Gobernadora, west side of canyon, ca. 1 air mile north of Ortega hwy. 91 Comment
  SD134404  Chorizanthe staticoides Craig Reiser 1992-6-11 Orange Laguna Niguel, ridge NE of intersection of Crown Valley Parkway and Pacific Island Drive Comment
  UCD130549  Cirsium arvense P. B. Kennedy 1924-2-13 s.n. Orange Huntington Beach District. Comment
  CAS-BOT-BC280089  Cirsium occidentale var. californicum John Thomas Howell 1927-6-26 2593 Orange Claymine Canon [Canyon], n. Santa Ana Mts. 243 Comment
  IRVC14808  Cirsium occidentale var. californicum E. P. Cowper 1965-4-10 Orange Trabuco Canyon, passed Guard Station. Santa Ana Mountains Comment
  SD143571  Cirsium occidentale var. californicum R. D. Goeden, D. W. Ricker 1965-6-21 Orange Dana Point 75 Comment
  POM352202  Cirsium occidentale var. occidentale M. B. Dunkle 1933-5-30 3582 Orange Santa Ana Canyon Comment
  CAS-BOT-BC285735  Cirsium vulgare Ira L. Wiggins 1965-11-3 20311 Orange East side of California State College at Fullerton campus, near Placentia Avenue, Fullerton Comment
  SDSU3806  Cirsium vulgare Curtis B. Kendall 1994-5-18 18 V94F Orange Intersection of Bell Canyon Road and North Prusker Road in he National Audubon Starr Ranch Sanctuary. 268 Comment
  CAS-BOT-BC162647  Clarkia E. W. Lathrop 1974-6-27 7408 Orange 5 miles est of Trabuco Oaks, Trabuco Canyon, Cleveland Nat'l. Forest, Santa Ana Mountains 396 Comment
  RSA783257  Clarkia J. D. Olmsted 1959-4-23 455 Orange Spring Trail at Beacon Pines Ranch; 9 miles SW of Corona. 762 Comment
  RSA448249  Clarkia bottae M. B. Dunkle 1933-5-30 s.n. Orange Carbon Canyon Comment
  RSA5466  Clarkia bottae Carl B. Wolf 1932-7-2 3825 Orange Carbon Canyon, 1/8 mile below La Vida Springs 213 Comment
  RSA562745  Clarkia bottae Steve Boyd, T. S. 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 the creek by Lucas Canyon Trail, downstream to confluence with Aliso Canyon. 274 Comment
  SDSU8634  Clarkia bottae Ruth Haaf, Josephine Morehous 1932-5-28 Orange Carbon Canyon Comment
Read comments
Jan 24 2013
  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
  UCR234145  Clarkia dudleyana Dick Newell, Judy Booth 2012-5-6 250 Orange Peninsular Range; Santa Ana Mtns., Maple Springs Road, 1.2 miles NE of Maple Springs gate, Cleveland National Forest 695 Comment
  UCSB48212  Clarkia purpurea subsp. quadrivulnera Roberts, Fred 1981-5-3 Orange Santa Ana Mtns; Hot Springs Cyn; 0.8 km by road N of San Juan Guard Station 256 Comment
  RSA581440  Clarkia purpurea subsp. quadrivulnera Fred M. Roberts, Gordon Marsh 1989-5-12 4359 Orange Santa Ana Mountains: Santiago Canyon, Flemming Regional Park, just E of Modjeska at end of paved road, ca. 3.3 km WSW Laurel Springs. 430 Comment
  RSA0059921  Clarkia purpurea subsp. viminea L. R. Abrams 1910-6-15 1796 Orange Santiago Peak trail. Comment
  RSA708234  Clarkia rhomboidea Fred M. Roberts, Robert L. Allen, Chris Barnhill, Nancy Hatfield 2005-5-30 6236 Orange Modjeska Peak, west slope along summit road, 0.15km by air W summit. 1613 Comment
  UCR227632  Clarkia rhomboidea Robt. L. Allen 2003-6-22 12309 Orange Santa Ana Mountains, west-facing upper slope of Santiago Peak, along North Main Divide Road, c. 0.10 air mi northwest of Santiago Peak summit 1674 Comment
  CAS-BOT-BC233841  Claytonia parviflora subsp. parviflora Helen D. Geis 1904-4-1 758 Orange Silverado Canyon, Santa Ana Mts. Comment
  RSA680553  Claytonia perfoliata Scott D. White 2003-3-21 8807 Orange Santa Ana Mountain Foothills: Rancho Mission Viejo. East-facing slopes above an unnamed tributary to San Juan Creek. 122 Comment
  SFV16197  Claytonia perfoliata R. K. Stachelek, B. Anderson, F. Schropshire 1995-3-1 46 Orange Newport Beach, Upper Newport Bay on Back Bay Drive about 0.5 miles north of Shellmaker Island. Mesic roadside at base of coastal bluff adjacent to semi-disturbed coastal sage scrub area. Comment
  SD101082  Claytonia perfoliata subsp. mexicana John M. Miller 1978-3-18 709 Orange Santa Ana Mountains; San Juan Creek Canyon, 13.6 miles E of Hwy. 101 on Hwy. 74. 366 Comment
  RSA638959  Claytonia perfoliata subsp. perfoliata Valerie L. Soza, LeRoy Gross 1999-6-7 487 Orange West side of Modjeska Peak, along Main Divide Road. 1448 Comment
  OBI30216  Claytonia perfoliata subsp. perfoliata L. Fountain 1966-3-23 52 Orange Silverado Cyn at the end of the pavement Comment
  RSA699297  Claytonia perfoliata subsp. perfoliata R. H. McArthur 1934-3-3 s.n. Orange Forks of Laguna Canyon Comment
  SBBG52706  Clematis lasiantha C. Davidson 1977-5-18 5629 Orange Bear Springs, Santa Ana Mtns 1219 Comment
  UCSB48083  Clematis pauciflora Roberts, Fred 1981-4-12 Orange Santa Ana; San Juan Canyon, Hwy 74 2.0km by road SW San Juan Guard Station; 2.7km SW Juan Rancho Survey Mark 210 Comment
  RSA752037  Cleome isomeris Fred M. Roberts 2008-3-27 6812 Orange Dana Point: Dana Point Headlands, CNLM Preserve near Outlook 1, 0.5km W Marine Institute (Dana Point Harbor). 45 Comment
  UCSB50632  Clinopodium chandleri Roberts, Fred 1982-7-9 Orange Santa Ana Mtns.: San Juan Canyon, 0.l km N Lower San Juan Picnic Ground 415 Comment
  POM78643  Cneoridium dumosum Albert J. Perkins 1914-3-8 s.n. Orange Laguna Beach. Comment
  RSA449088  Cneoridium dumosum Unspecified s.n. Orange Laguna Beach. 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
  RSA708281  Cneoridium dumosum Scott D. White, Jennifer H. Jones 2005-3-31 10853 Orange South Coast: City of Laguna Beach. 549 Nyes Place. Proposed home site on ca. 0.5 acre. 91 Comment
  CDA22512  Conium maculatum Mark A. Elvin, B. S. Herhus 2006-11-4 5254 Orange Southern Coastal; Huntington Beach; 1.5 km southwest of Wintersburg, southwest of junction Slater and Goldenwest; Shipley Nature Center. Comment
  RSA699123  Conium maculatum J. Vlahos s.n. Orange Santa Ana River by Fairview. Comment
  IRVC972  Convolvulus arvensis L. McCabe 1965-5-3 Orange [Newport] Back Bay: Newport Beach Comment
  UCR107845  Convolvulus arvensis Scott D. White 1998-3-24 6235 Orange Irvine. Univ. of Calif. Irvine Campus: Site of proposed Research Park. SW of main campus circle, c. halfway between Berkeley Av. and new freeway (Bonita Cyn) 37 Comment
  UCR138387  Convolvulus arvensis Scott D. White, Brian Leatherman 1997-6-12 5346 Orange Santa Ana Mtn. foothills, E of San Juan Capistrano: San Juan Creek between Hwy 74 bridge and Mission Vieja site, i.e. c. 2-4 mi east of Hwy I-15/Hwy 74 junction 76 Comment
  IRVC15625  Convolvulus simulans Karlin G. Marsh 1977-6-8 Orange south of UCI campus near parking lot 18. Irvine Comment
  CDA23616  Conyza coulteri T. McCrainie, Mark A. Elvin 2006-9-23 9 Orange Southern Coastal; Irvine: San Joaquin Freshwater Marsh, near Campus and University Drives, 1.7 km (air) north-northwest of UC Irvine campus center. Comment
  IRVC29835  Conyza coulteri Tom McCrainie, Mark A. Elvin 2006-9-23 9 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7km (air) NNW UC Irvine campus center. Southern Coastal 3 Comment
  RSA743520  Conyza coulteri Fred M. Roberts, Carol A. Roberts 2008-9-28 7111 Orange Dana Point: Dana Point Headlands, CNLM Preserve near NE Gate, 0.5 km W Marine Institute (Dana Point Harbor). 75 Comment
  RSA234511  Conyza coulteri James Henrickson 1970-8-22 5297 Orange 2.5 miles NNW of Huntington Beach. 0 Comment
  RSA0135556  Cordylanthus maritimus subsp. maritimus David E. Bramlet 2005-7-1 3888 Orange Upper Newport Bay, west side of the Bay approximately 61m east of the end of Mariners Drive. Some 611m NW of the Big Canyon area. 0 Comment
  RSA486865  Cordylanthus maritimus subsp. maritimus P. R. Atsatt 1971-6-15 s.n. Orange Newport Beach, Back Bay Comment
  RSA486866  Cordylanthus maritimus subsp. maritimus Gordon Marsh 1974-5-29 14209 Orange On east side of upper Newport Bay 2 Comment
  UCR193827  Cordylanthus rigidus A. C. Sanders, Fred M. Roberts 2008-7-16 35852 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, upper Hangmans Tree Canyon 395 Comment
  SEINET7067532  Cordylanthus rigidus subsp. rigidus A. G. Vestal 1947-6-12 s.n. Orange Grade above road-end at Silverado Canyon. Coordinate datum: NAD27. UTM Zone 11, 445596mE, 3734267mN. Comment
  RSA412301  Cordylanthus rigidus subsp. setiger M. B. Dunkle 1934-6-18 3992 Orange San Juan Canyon, Southern Coastal. 305 Comment
  RSA712  Cordylanthus rigidus subsp. setiger J. T. Howell 1927-6-26 218 Orange Claymine Canyon near Sierra Peak 366 Comment
  CAS-BOT-BC101297  Corethrogyne filaginifolia Marcus E. Jones 1924-8-26 s.n. Orange Newport Comment
  JEPS41844  Corethrogyne filaginifolia L. M. Booth 1932-7-29 1332 Orange Newport Bay Comment
  LA205799  Corethrogyne filaginifolia W. Pequegnat; 1937-9-1 sn Orange Santa Ana Mountains, Top of Horsethief Trail Comment
  POM18125  Corethrogyne filaginifolia P. A. Munz 1923-9-7 7739 Orange Santiago Peak in Santa Ana Mountains. 1706 Comment
  SFV3855  Corethrogyne filaginifolia E. B. Carlton 1961-8-26 C 3 Orange Laguna Beach. Crest of ridge north of reservoir, "Top of the World" area. 305 Comment
  UC537259  Corethrogyne filaginifolia L. M. Booth 1933-8-26 1385 Orange Newport Lagoon Comment
  UCR193622  Coronopus didymus A. C. Sanders, T. B. Salvato 2008-5-13 35374 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
  RSA696769  Cotula coronopifolia Elisabeth Norland 1929-4-11 s.n. Orange Cypress, Calif. Comment
  UC1543192  Cotula coronopifolia Donald G. Nelson 1935-3-30 197 Orange near mouth Brea Canyon (n of Brea, near Portolas Camp) Comment
  UCR106873  Cotula coronopifolia Michael A. Patten, Steve Myers 1993-3-9 s.n. Orange Tustin, Marine Corps Air Station 107 Comment
  UC484241  Crassula connata var. erectoides C. B. Wolf 1931-3-6 Orange 1/2 mi. above Trabuco; w. slope Santa Ana Mts., Trabuco Canyon 457 Comment
  JEPS43028  Cressa truxillensis L. M. Booth 1932-5-18 1052 Orange Newport Bay Comment
  UCR158164  Cressa truxillensis Adrian Wolf 1998-5-27 333 Orange South Coast, Newport Slough, south of oil fields, between Huntington Beach, Costa Mesa and Newport Beach, just south of the channelized mouth of the Santa Ana River 2 Comment
  UCD141988  Croton californicus G. L. Webster 1966-12-11 7480 Orange Dana Point. Comment
  UCR220965  Croton californicus Dick Newell, Don Millar 2010-4-27 027 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Limestone Ridge Rd. at junction of Markel Spur Rd., overlooking The Sinks 427 Comment
  SEINET10453718  Croton setiger Charlene A. Bennett 1976-7-20 Bennett 427 Orange Collected along Crown Valley Parkway, 1 mi SW of I-5. 30 Comment
  RSA0073640  Cryptantha clevelandii Fred M. Roberts 2010-3-12 7179 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
  RSA641  Cryptantha clevelandii J. T. Howell 1927-7-22 460 Orange North of Botany Garden, Rancho Santa Ana. 274 Comment
  UCR267187  Cryptantha clevelandii Fred M. Roberts 2010-3-12 7179 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
  UCR263635  Cryptantha clevelandii var. clevelandii Ed Kentner 2012-4-24 130 Orange Peninsular Range: Santa Ana Mountains, Lomas De Santiago, El Toro property 200 Comment
  POM49204  Cryptantha clevelandii var. florosa L. R. Abrams 1901-6-15 1821 Orange Santiago Peak trail. Comment
  RSA731998  Cryptantha intermedia A. C. Sanders, Fred M. Roberts 2008-4-22 35057 Orange Penisular Range; Lomas de Santiago, Loma Ridge c. 1/4 mi. SE of VABM Bee, above Bee Canyon landfill on road from Hicks Canyon Haul Rd. to Limestone Canyon. c. 3.5 mi. WSW of Silverado 493 Comment
  RSA737545  Cryptantha intermedia Fred M. Roberts 2008-3-12 6716 Orange Dana Point: Dana Point Headlands CNLM Preserve, western side, c.a. 0.8 km W Marine Institute (Dana Point Harbor). 50 Comment
  UC484240  Cryptantha intermedia C. B. Wolf 1931-3-6 Orange 0.5 mi above Trabuco Oaks (w slope Santa Ana Mts.); Santa Ana Mts., Trabuco Canyon Comment
  RSA749491  Cryptantha microstachys Fred M. Roberts, Linda Farley 2008-3-28 6825 Orange Santa Ana Mtns.: Upper Weir Cyn., Irvine Ranch Conservancy, 3.3 km ENE Robbers Peak on ridge north of canyon. 427 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
  UCR191005  Cryptantha muricata A. C. Sanders, Fred M. Roberts 2008-4-22 35024 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Limestone Canyon, c. 2 miles SW of Silverado 396 Comment
  SD247614  Cryptantha muricata R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1997-4-27 49663 Orange Northern Santa Ana Mountains: Coal Canyon (NW of Sierra Peak). Comment
  RSA0079566  Cryptantha muricata var. jonesii Fred M. Roberts, Carol A. Roberts, Kirsten Winter 1995-5-6 4939 Orange Santa Ana Mountains: Ridge between Hot Springs Canyon and Viejo Canyon, San Juan Trail, 3.4 km WNW lower San Juan Picnic Ground. 546 Comment
  RSA0079591  Cryptantha muricata var. muricata J. T. Howell 1928-2-25 846 Orange Nolina Canyon, Rancho Santa Ana. 152 Comment
  RSA39346  Cucurbita digitata E. L. Paddock 1948-6-16 12734 Orange N of Sante Fe Railroad Tracks opposite Yorba Cemetery Comment
  CHSC37640  Cucurbita foetidissima T. B. Devine 1981-7-30 737 Orange At junction of Santiago Canyon Road and road to O'Neal Park. 335 Comment
  UCR230825  Cucurbita foetidissima Dick Newell, Don Millar, Shara Harris 2011-6-21 186 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Agua Chinon Wash 207 Comment
  UCSB48207  Cucurbita foetidissima Roberts, Fred 1981-7-8 Orange Rancho Mission Viejo: Calif. Rte. 74, 5.2 km ENE San Juan Capistrano by road 100 Comment
  POM316846  Cupressus forbesii Charles Fitch 1967-4-19 s.n. Orange North portion of the Santa Ana Mountains. Just north of Cleveland Nat. Forest. Comment
  UCR37801  Cupressus forbesii Steve Boyd, L. F. LaPre 1981-5-27 s.n. Orange Santa Ana Mtns., Northern end of the Santa Ana Mtns., along powerline road on ridges east of Weir Canyon & at the head of Gypsum Canyon. Comment
  JEPS47128  Cuscuta Alice King Jun 1908 Orange Santa Ana Comment
  RSA409705  Cuscuta californica F. R. Fosberg 1931-6-21 5143 Orange Silverado Canyon. Santa Anita Mts. Comment
  RSA570  Cuscuta californica J. T. Howell 1927-6-3 24 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA70997  Cuscuta californica F. W. Peirson 1923-9-7 4038 Orange Trail from Trabuco Canyon to Santiago Peak 1296 Comment
  SEINET269588  Cuscuta californica O. F. Clarke 1994-6-17 Orange Laguna Canyon. Growing wild. Parasite on Erigonum fasciculatum. Comment
  UCR217674  Cuscuta californica var. californica Fred M. Roberts 2008-5-27 7004 Orange Peninsular Range; Santa Ana Mountains Foothills, Lomas de Santiago, Loma Ridge, Hicks Canyon, c. 0.2 km beyond Hicks Canyon Gate, 2.2 km west-northwest of Bee Peak, Irvine Ranch Conservancy 213 Comment
  POM3664  Cuscuta salina L. R. Abrams 1901-6-12 1756 Orange Anaheim Landing Comment
  RSA394863  Cuscuta salina Anstruther Davidson 1907-9-1 1772 Orange Newport Comment
  CDA23140  Cuscuta subinclusa Mark A. Elvin, D. G. Kelch 2006-12-9 5312 Orange Southern Coastal; Irvine; San Diego Creek, edge of San Joaquin Marsh, beside University Drive, between Campus Drive and Highway 73. Comment
  UC536956  Cuscuta subinclusa Lawrence M. Booth 1932-7-25 1316 Orange Santa Ana River Comment
  JEPS59790  Cycloloma atriplicifolium Lawrence M. Booth 1932-7-30 1343 Orange near Huntington Beach; Santa Ana River channel Comment
  RSA151149  Cycloloma atriplicifolium P. H. Raven 1961-10-15 16848 Orange Anaheim: Santa Ana River Bed at Anaheim Street crossing 61 Comment
  SEINET10891979  Cynara cardunculus Melvin L. Conrad, David B. Dunn 1973-6-13 Conrad 7133 Orange In vicinity of Laguna Beach. 152 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
  RSA650406  Cynodon dactylon Norman Willis 1948-2-8 s.n. Orange East of Orange. 61 Comment
  CHSC116492  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). Comment
  SEINET11750782  Cyperus eragrostis S. A. Thompson, Rawlins, J. E. 1988-1 5256 Orange Cleveland National Forest, 3.8 mi E of San Juan Hot Springs on CA 74 370 Comment
  POM12447  Cyperus erythrorhizos Phillip A. Munz 1922-9-2 6359 -A Orange Laguna Lakes. 46 Comment
  CAS-BOT-BC114321  Cyperus esculentus Helen D. Geis 1902-9-1 561 Orange Ditch banks, Santa Ana. Comment
  CAS-BOT-BC114319  Cyperus esculentus LeRoy Abrams 4102 Orange Peat Sands, Santa Ana. Comment
  RSA153444  Cyperus laevigatus F. R. Fosberg 1931-6-19 746 Orange Carbon Canyon, Puente Hills. Comment
  RSA77  Cyperus niger var. capitatus J. T. Howell 1927-7-19 439 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  RSA92095  Cyperus niger var. capitatus F. W. Peirson 1924-10-19 5231 Orange Wintersberg Comment
  RSA739272  Cyperus retrorsus R. E. Riefner 2007-9-14 07 -396 Orange Orange County: City of Orange, Santa Ana River at Taft St. alt 196ft 60 Comment
  SEINET3870581  Cyrtomium falcatum R. E. Riefner Jr. 2006-9-5 06 -417 Orange Southern Coast: Corona del Mar, Ocean Blvd. near Iris Ave. (Laguna Beach 7.5'Q).; 0 11 Comment
  UCR208856  Dactylis glomerata C. B. Wolf 1932-6-13 3715 Orange Fullerton, Rose Drive 53 Comment
  RSA295240  Dactyloctenium aegyptium E. Wegener 1970-8-11 LASCA- 948 Orange Near Costa Mesa. Comment
  RSA603365  Datisca glomerata Scott D. White, B. Leatherman 1997-6-12 5341 Orange East of San Juan Capistrano: San Juan Creek between Highway 74 bridge and Mission Vieja site, i.e., ca. 2 to 4 mi E of I-15 / Hwy 74 junction. 46 Comment
  CDA1077  Datura stramonium D. G. Kelch 2006-12-9 6 .562 Orange Irvine. University Dr along tidal creek just E of I-73. Comment
  CDA23138  Datura stramonium Mark A. Elvin, D. G. Kelch 2006-12-9 5321 Orange Southern Coastal; Irvine; San Diego Creek, edge of San Joaquin Marsh, beside University Drive, between Campus Drive and Highway 73. Comment
  RSA733935  Datura stramonium Keith E. Hoffmaster 1934-6-27 5 Orange North Costa Mesa Comment
  RSA17044  Datura wrightii Carl B. Wolf 1936-1-13 7694 Orange Santa Ana Canyon, Rancho Santa Ana, along R. R. right of way east of Ranch Houses. 137 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
  RSA743377  Daucus pusillus Fred M. Roberts 2008-4-9 6857 Orange Dana Point: Dana Point Headlands, CNLM Preserve near Outlook 2, 0.7 km W Marine Institute (Dana Point Harbor). 52 Comment
  UC536939  Daucus pusillus Lawrence M. Booth 1932-5-12 1033 Orange Newport Bay Comment
  UCR191224  Daucus pusillus A. C. Sanders 2008-4-29 35126 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, western end of Loma Ridge on road to sheriff's training facility, c. 1.5 mi. SW of Santiago Reservoir 335 Comment
  UCR192465  Daucus pusillus A. C. Sanders, Fred M. Roberts 2008-3-25 34533 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  UC1093919  Deinandra fasciculata Herbert L. Mason 1926-4-25 2932 Orange 5 mi s Laguna Comment
  CAS-BOT-BC299326  Deinandra fasciculata Joseph Andorfer Ewan 1932-7-28 7695 Orange Newport Bay near power house Comment
  CAS-BOT-BC299330  Deinandra fasciculata H. M. Hall 1930-11-4 12994 Orange South of Capistrano on mesa about one mile from the sea Comment
  UCSB48381  Deinandra fasciculata Roberts, Fred 1982-5-22 Orange Laguna Niguel; Niguel Hill, just N of end of Pacific Island Dr., 1.6 km. ENE Aliso Peak 295 Comment
  RSA0047639  Deinandra paniculata R. E. Riefner Jr. 2014-6-3 14 -143 Orange City of Laguna Beach, Moulton Meadows, NE 0.1 mi. from Del Mar Ave. and Balboa Ave. along Mentally Sensitive Trail 266 Comment
  SEINET8043519 Image available Deinandra paniculata R. E. Riefner Jr. 2008-1 08 -100 Orange Ladera Ranch, Cecil Pasture at Jerome Rd. 157 Comment
  UCR254222  Deinandra paniculata R. E. Riefner Jr. 2013-8-16 13- 188 Orange South Coast, City of Dana Point, canyon west of Dana Hills High School, north of Stonehill Drive, east of Cortes Drive 86 Comment
  RSA3193B  Delphinium cardinale B. D. Stark 1931-6-6 s.n. Orange Rancho Ranta Ana. Comment
  RSA548863  Delphinium patens subsp. hepaticoideum Fred M. Roberts, Carol A. Roberts 1988-6-10 4095 Orange Santa Ana Mountains: Modjeska Peak, 0.9km SW summit. 1542 Comment
  RSA594894  Delphinium patens subsp. hepaticoideum Fred M. Roberts, Sandy Leatherman, B. Leatherman 1994-4-24 4907 Orange San Juan Canyon, south side of Calif. Route 74, 1.2 km SW Lower San Juan Picnic Ground. 390 Comment
  UC484251  Delphinium patens subsp. hepaticoideum C. B. Wolf 1931-3-6 1856 Orange 1/2 mi below Trabuco Camp Grounds (w slope of mts); Santa Ana Mts., Trabuco Canyon 609 Comment
  RSA662563  Dendromecon rigida P. Shirokawa 1998-5-7 21 Orange Cleveland National Forest- Trabuco Ranger District, 3.2 miles from Ortega Highway (State Highway 74) on North Main Divide Road 991 Comment
  RSA171107  Dendromecon rigida subsp. rigida Robert F. Thorne 1963-7-26 32833 Orange Santa Ana Mts., Cleveland National Forest, Trabugo District. 1189 Comment
  CAS-BOT-BC43187  Descurainia pinnata subsp. brachycarpa Helen D. Geis 1902-3-1 s.n. Orange Santa Ana River. Comment
  CAS-BOT-BC43189  Descurainia pinnata subsp. brachycarpa Helen D. Geis 1902-1-1 530 Orange Santiago Canyon. Comment
  POM369419  Descurainia pinnata subsp. menziesii Albert J. Perkins 1921-3-15 s.n Orange Garden, Santa Ana. Comment
  RSA433549  Dicentra chrysantha M. B. Dunkle 1934-6-18 3974 Orange Upper San Juan Canyon. 610 Comment
  RSA734281  Dichelostemma capitatum A. C. Sanders, Linda Farley, Fred M. Roberts, D. Bramlet 2008-4-1 34644 Orange Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 250 Comment
  UCR103218  Dichelostemma capitatum Scott D. White 1997-2-19 4699 Orange Santa Ana Mtns, above Modjeska Canyon; proposed water tank site 488 Comment
  RSA698093  Dichelostemma capitatum subsp. capitatum Calvert Norland 1929-3-4 39 Orange Orange Co. Park Comment
  POM48839  Dichondra occidentalis Stephen Grout 1904-08 s.n. Orange Three Arches, Laguna Comment
  UCR37799  Dichondra occidentalis 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
  JEPS73759  Digitaria sanguinalis L. M. Booth 1932-6-28 1210 Orange Bolsas Creek Comment
  RSA0062639  Digitaria sanguinalis Jack D. Ingwersen 1962-6-2 s.n. Orange Anaheim. Comment
  UCR273943  Diospyros Mitch Provance 2007-7-11 707- 01 Orange Coastal Regions of Southern California, Between Irvine and Foothill Ranch, UCR South Coast Research and Extension Center 122 Comment
  RSA708441  Diospyros lycioides subsp. lycioides Mark Elvin 2004-5-2 3418 Orange Southern Coastal, Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7 km (air) NNW of UC Irvine Campus center. 3 Comment
  SEINET13682959  Diplacus aurantiacus R. Nelson, Baumann, Kondratieff, Sargent 1988-1-12 5117 Orange Cleveland NF, San Juan Creek at Lower San Juan Campground. 366 Comment
  SJSU1768  Diplacus aurantiacus G. B. Youngberg 1956-3-27 185 Orange Irvine Park c. 8 mi E of Orange 259 Comment
  SD48448  Diplacus clevelandii E. K. Balls, P. C. Everett 1957-11-25 22845 Orange 4.7 mi. e. of Silverado Comment
  CDA3675  Diplotaxis tenuifolia R. K. Bishop Nov 1937 Orange 1 1/2 mile northwest of Orange - railroad right-of-way. 0 Comment
  CAS-BOT-BC195672  Distichlis spicata Carl B. Wolf 1932-7-2 3815 Orange Carbon Canyon, 1/8 mi. below La Vida Springs 213 Comment
  CAS-BOT-BC195673  Distichlis spicata John Thomas Howell 1927-6-17 2552 Orange Hills on north side of Santa Ana Canon [Canyon] 152 Comment
  SEINET182346 Image available Distichlis spicata Lawrence M. Booth 1932-5-25 1116 Orange Balboa Ilsand Newport Bay Comment
  UCR207555  Distichlis spicata O. F. Clarke 2004-11-23 s.n. Orange South Coast, Newport Back Bay 3 Comment
  UCSB44176  Distichlis spicata Henneman, J. 1977-5-21 Orange Newport Back Bay Comment
  SEINET5500867 Image available Dodecatheon clevelandii Sally Walker 1998-3-23 Orange Quail trail Wm casper park Comment
  CAS-BOT-BC41701  Draba cuneifolia var. sonorae Helen D. Geis 1902-3-29 s.n. Orange Santa Ana River. Comment
  RSA701645  Drymocallis glandulosa Keith E. Hoffmaster 1934-4-22 s.n. Orange Santa Ana Mountains Comment
  RSA754061  Dryopteris arguta A. C. Sanders, Fred M. Roberts 2008-7-16 35862 Orange Lomas de Santiago, lower Hangmans Tree Canyon 379 Comment
  RSA603292  Duchesnea indica R. E. Riefner 1997-7-18 97 -239 Orange Near Fullerton Nature Park. Comment
  RSA678502  Dudleya blochmaniae subsp. blochmaniae Fred M. Roberts, Robt Allen, Carol A. Roberts 2003-5-11 5863 Orange Dana Point Headlands: hilltop, 0.6km SSW Richard Henry Dana School south of Pacific Coast Highway and north of Scenic Drive. 73 Comment
  UCR159829  Dudleya cymosa Valerie Soza, LeRoy Gross 1999-6-7 473 Orange Santa Ana Mountains, West side of Modjeska Peak, along Main Divide Road 1448 Comment
Read comments
Jun 15 2013
  CAS-BOT-BC213759  Dudleya edulis Reid Venable Moran 1948-6-23 3097 Orange near mouth of Aliso Canyon, south of Laguna Beach 7 Comment
  UC2059992  Dudleya edulis K. Nakai 1978-4-19 360 Orange Aliso Canyon, ca 200 yards from Highway 1. Comment
  CAS-BOT-BC411405  Dudleya lanceolata P. C. Everett 1935-6-17 7141 Orange Santa Ana Mts., Coldwater Canyon, 1/2 mi. above Glen Ivy Resort 457 Comment
  IRVC22733  Dudleya lanceolata Fred M. Roberts 1985-5-13 1788 Orange South Laguna; Mouth of Aliso Canyon, 0.6km NW Aliso Peak, 6 Comment
  RSA346  Dudleya lanceolata J. T. Howell 1927-7-3 255 Orange Claymine Canyon near Sierra Peak. 305 Comment
  RSA769617  Dudleya lanceolata E. W. Lathrop 1974-6-27 7423 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  RSA83424  Dudleya lanceolata F. W. Peirson 1924-5-31 4673 Orange 5 miles southeast of Laguna Beach. Comment
  UC536907  Dudleya lanceolata Lawrence M. Booth 1932-6-9 1188 Orange Newport Bay Comment
  CAS-BOT-BC411412  Dudleya lanceolata Alice Eastwood; John Thomas Howell 1935-4-24 3925 Orange 2 miles E of San Juan Hot Springs Comment
  RSA5410  Dudleya lanceolata C. B. Wolf 1932-12-16 1681 Orange At bar of plumes 0.5 mi. from Skyline Drive on firebreak road to Sierra Peak, Santa Ana Mts. Alt. 2500-3000 ft. 762 Comment
  RSA397817  Dudleya multicaulis Anstruther Davidson 1908-5-1 1983 Orange Corona del Mar Comment
  RSA550604  Dudleya multicaulis Fred M. Roberts 1989-4-25 4309 Orange Santa Ana Mountains: East Rim of Blind Canyon 8.5 kilometers SW Sierra Peak, c. 1.4 kilometer N Irvine Lake spillway. 366 Comment
  RSA594810  Dudleya multicaulis Fred M. Roberts, Edna Rey, Kay Stockwell 1993-5-6 4879 Orange Orange Park Acres, Glen Albyn Lane, ca. 0.7 km by road E Santiago Blvd. 0.3 km NW Bauer Survey Marker. 168 Comment
  RSA649678  Dudleya multicaulis R. E. Riefner 2000-5-6 20 -407 Orange NCCP North Ranch Policy Plan Area: NE property; along powerline on National Forest boundary. 582 Comment
  UC338337  Dudleya multicaulis unknown Orange Newport Bay Comment
  UC792938  Dudleya multicaulis Reid Moran 1949-7-2 3285 Orange 0.4 mi above El Toro road junction with Irvine road (s of El Toro road, Laguna Canyon); Laguna Canyon 91 Comment
  UC2059974  Dudleya multicaulis K. Nakai 1978-2-5 214 Orange Laguna Beach, above Laguna High School, 100 yards from the ed of Pacific Avenue. 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
  UCR224165  Dudleya pulverulenta subsp. pulverulenta Fred M. Roberts 2008-7-10 7076 Orange South Coast, Dana Point Headlands, CNLM Preserve, near Strands Road Gate, 0.8 km west-northwest of Marine Institute, Dana Point Harbor 65 Comment
  CAS-BOT-BC109742  Dudleya stolonifera R. V. Moran 1949-7-2 3287 Orange Near mouth of Aliso Canyon, south of Laguna Beach. Comment
  IRVC22787  Dudleya stolonifera Fred M. Roberts 1985-5-16 1815 Orange mouth of Laurel Canyon, 4.0km SE Signal Peak, San Joaquin Hills 85 Comment
Read comments
Mar 3 2015
  SD114480  Dudleya stolonifera Darley F. Howe 1967-5-30 4363 Orange Near mouth of Aliso Canyon. Comment
  SD129960  Dudleya stolonifera Reid Moran 1977-6-13 24230 Orange Willow Canyon, tributary of Laguna Canyon. 124 Comment
  UC905132  Dudleya stolonifera R. V. Moran 1948-6-23 3095 Orange s of Laguna Beach (n-facing cliff near mouth of Aliso Canyon); ; North-facing cliff near mouth of Aliso Canyon, S of Laguna Beach, Orange Co. 7 Comment
  POM277740  Dudleya viscida H. G. Rush 1948-5-14 102 Orange San Juan Canyon, 1/4 mile below San Juan Hot Springs 305 Comment
  SD212579  Dudleya viscida A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33053 Orange Santa Ana Mountains; San Juan Canyon from Lower San Juan Picnic Area to ca. 1.0 mile downstream, parallel to Highway 74 and near Riverside County line. 366 Comment
  UCSB52395  Dysphania multifida Roberts, Fred; Ferren, Wayne 1982-7-21 Orange Newport Beach; Upper Newport Back Bay, Back Bay Dr., 3.5 km. N San Joaquin Hills Rd.; 3.0 km. W UC Irvine campus 2 Comment
  CAS-BOT-BC197032  Echinochloa colona E. R. Johnson 1936-7-10 8104 Orange Rancho Santa Ana, Santa Ana Canyon Vegetable Garden 121 Comment
  RSA17265  Echinochloa colona C. B. Wolf, E. R. Johnson 1936-7-10 8104 Orange Rancho Santa Ana, Santa Ana Canyon., [33 deg 51'30N, 117 deg 47'W] 122 Comment
  CAS-BOT-BC197175  Echinochloa crus-galli Carl B. Wolf 1932-6-13 3720 Orange Fullerton, Malvern & Nicholas Aves. 53 Comment
  CAS-BOT-BC197179  Echinochloa crus-galli John Thomas Howell 1927-7-18 2793 Orange Santa Ana River bottom, Santa Ana Canon [Canyon] 152 Comment
  UCD60914  Echinochloa crus-galli Ira L. Wiggins 1965-11-7 20356 Orange Vacant lot between State College Blvd. and Troy High School campus, Fullerton. Comment
  RSA184153  Echinochloa crus-galli I. L. Wiggins 1965-9-26 20262 Orange Fullerton. Comment
  RSA703124  Echinochloa crus-galli R. E. Riefner Jr. 2004-8-8 4 -371 Orange City of Anaheim, Santa Ana River bottom, E of 57 Freeway between Orangewood Street and Chapman Avenue. 41 Comment
  RSA713568  Echinochloa crus-galli R. E. Riefner Jr. 2005-7-9 5 -552 Orange City of Huntington Beach, Huntington Central Park, Goldenwest St. near Slater Ave. 2 Comment
  UCD60958  Echinochloa esculenta Beecher Crampton 1965-10-27 7586 Orange 2 miles E of Irvine, UC South Coast Field Station. Comment
  UCR19807  Echinodorus berteroi F. M. Reed 1924-8-15 4963 Orange South Coast, Laguna Lake Beds, Laguna Canyon Comment
  UCSB57135  Echinodorus berteroi Marsh, G. 1975-7-28 Orange Huntington Beach; east Garden Grove-Wintersburg Flood Control Channel (No.C05); just N of Warner St. bridge crossing Comment
Read comments
Aug 18 2011
  RSA0125888  Echium candicans Fred M. Roberts 2012-5-4 7545 Orange San Joaquin Hills: Buck Gully, along San Joaquin Hills Road, just west of Harbor Watch Park, 2.9 km W Signal Peak. 174 Comment
  JEPS30718  Eclipta prostrata Peter H. Raven 1961-10-15 16849 Orange Anaheim Street, Anaheim, Santa Ana River Bed Santa Ana River Bed, Anaheim, Anaheim Street 60 Comment
  UCR197678  Eclipta prostrata A. C. Sanders, Fred M. Roberts 2008-9-18 36069 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge 330 Comment
  UCSB47620  Ehrendorferia chrysantha Roberts, Fred 1980-5-3 Orange Santa Ana Mtns., San Juan Canyon, Rte. 74, 0.2km S Lower San Juan Picnic Ground 393 Comment
  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
  RSA665953  Elatine brachysperma Fred M. Roberts, Michelle Lee, Kristen Szabo 2001-4-13 5424 Orange Rancho Mission Viejo: South of San Juan Creek, 0.6km WNW Median Rancho Survey Marker. PCR Vernal Pool 2. 183 Comment
  RSA708812  Elatine brachysperma Fred M. Roberts, Robert L. Allen, Chris Barnhill, Carol A. Roberts 2005-4-10 6165 Orange Costa Mesa: Fairview Park, west of north end of Canyon Drive, c.a. 0.2km WNW Marison Special Education Center (Canyon Sch. on topos). 24 Comment
  UC1543169  Eleocharis Donald G. Nelson 1935-4-15 307 Orange On road from Garden Grove to Cosa Mesa, converging near Costa Mesa, toward main highway from Santa Ana Comment
  UCR191469  Eleocharis macrostachya A. C. Sanders, Fred M. Roberts 2008-4-8 34734 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, head of Hicks Canyon, S of Santiago Reservoir 351 Comment
  RSA752647  Eleocharis montevidensis A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33003 Orange San Juan Canyon, from Lower San Juan Picnic Area to c. 1 mile downstream, parallel to Hwy 74 and near Riverside Co. line 366 Comment
  UCSB47586  Eleocharis montevidensis Roberts, Jr., Fred 1980-5-3 Orange Santa Ana Mtns., San Juan Cayon near mouth of Viejo Canyo, below Rte. 74, 2.5km by road ENE San Juan Guard Station, 0.5km WSW Bm 1100 288 Comment
  RSA588792  Eleocharis montevidensis var. montevidensis Fred M. Roberts, D. Bontrager 1990-4-18 4569 Orange Rancho Mission Viejo: Canada Chiquita, east side of canyon near mouth, 2.7 kilometers SSE Median Rancho Survey Marker; UTM Z11 37 10 000N, 4 43 800m E 79 Comment
  RSA735160  Eleocharis palustris A. C. Sanders, Fred M. Roberts 2008-5-6 35240 Orange Lomas de Santiago, Loma Ridge, head of Hicks Canyon, south of Santiago Reservoir 351 Comment
  SD245178  Eleocharis parishii R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49571 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway(74). San Juan Creek. Comment
  RSA743555  Eleusine coracana subsp. africana R. E. Riefner 2004-8-28 4 -407 Orange City of Fountain Valley, Newland Ave. at Edinger St. 14 Comment
  RSA746527  Eleusine coracana subsp. africana R. E. Riefner Jr. 2008-12-28 8 -391 Orange City of Irvine, San Diego Creek at Alton Pkwy. 48 Comment
  SEINET10561498  Elymus X hansenii Alvares ALVARES 1814 Orange Santrago P.K. Trail. Comment
  HSC9694  Elymus condensatus J. W. Johnson 1961-3-29 Orange Newport Beach Comment
  UCR193540  Elymus condensatus A. C. Sanders, Fred M. Roberts 2008-7-3 35666 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor 415 Comment
  RSA34  Elymus glaucus J. T. Howell 1927-6-17 164 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  SD255053  Elymus glaucus subsp. glaucus Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49815 Orange Santa Ana Mountains: Trabuco Canyon Comment
  RSA65  Elymus multisetus J. T. Howell 1927-6-8 53 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA679226  Elymus multisetus Fred M. Roberts 2003-6-25 5944 Orange Santiago peak, north slopes along ridge east of Main Divide truck trail, 0.6km NNW summit. 1605 Comment
  RSA539404  Emmenanthe penduliflora Fred M. Roberts, Carol A. Roberts 1988-6-2 4035 Orange Santa Ana Mountains: Silverado Canyon. Maple Springs Truck trail. 4.3 km above gate, 1.0 km WSW Bald Peak. 817 Comment
  RSA610  Emmenanthe penduliflora J. T. Howell 1927-6-9 72 Orange Botany Garden, Rancho Santa Ana. [original location] 152 Comment
  CAS-BOT-BC131231  Encelia californica R. K. Brummitt 1998-5-23 19990 Orange Newport Beach, by marina 10 Comment
  CHSC30402  Encelia californica Diane H. Ikeda 1980-4-2 218 Orange Upper Newport Back Bay Ecological Reserve. At the intersection of Back Bay Drive and San Joaquin Rd. 1 Comment
  RSA301996  Encelia californica J. R. Shevock 1972-2-18 1335 Orange Newport Beach Bay 11 Comment
  RSA719414  Encelia californica Fred M. Roberts, Lee Ann Caranza 2006-10-25 6452 Orange Dana Point Headlands south of Margarite Drive, 0.6km W Marine Institute and 1km SW Cook Sch. 58 Comment
  UCR140798  Encelia californica Robin G. Marushia 2004-5-4 014 Orange Southern Coast, Crystal Cove State Park, interior of El Moro Canyon, east side of canyon, utility pole turnout above riparian area crossing 183 Comment
  RSA797597  Epilobium canum subsp. angustifolium Robert F. Thorne 1977-11-21 49994 Orange Santa Ana Mountains: tributary canyon to San Juan Canyon about 2 miles above San Juan Fire Station Comment
  CAS-BOT-BC166347  Epilobium canum subsp. canum Edgar A. Mearns 1894-6-25 4081 Orange San Clemente Island Comment
  UCSB52396  Epilobium canum subsp. canum Roberts, Fred 1982-9-20 Orange Santa Ana Mts., near jct. of San Juan and Chiquito Basin Trails, 1.4km SW Blue Jay Campground; 2.4km SSE Los Pinos Peak 974 Comment
  UCR195004  Epilobium ciliatum A. C. Sanders, Fred M. Roberts 2008-8-7 35989 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
  RSA496  Epilobium ciliatum subsp. ciliatum J. T. Howell 1927-7-5 267 Orange West side, Rancho Santa Ana [Botanic Garden]. 152 Comment
  RSA0051389  Epipactis gigantea Robert F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49608 Orange Santa Ana Mountains: rocky ravine tributary to San Juan Canyon, along Ortega Highway (74) about 2 miles above San Juan Fire Station. Comment
  UC1543089  Equisetum arvense Donald G. Nelson 1935-4-6 265 Orange e San Juan Capistrano (canyon 200-300 ft below main hwy. ca. 4 mi from summit); Santa Ana Mts., San Juan Canyon Comment
  CAS-BOT-BC57385  Equisetum laevigatum Crawford; Johnston 1917-6-9 1216 Orange Santa Ana River near Corona Comment
  IRVC21384  Equisetum laevigatum A. S. Boughey 1968-7-9 406 Orange Santa Ana mtns: upper Santiago Canyon. Peninsular Ranges Comment
  UCR195014  Equisetum laevigatum A. C. Sanders, Fred M. Roberts 2008-8-7 35987 Orange Peninsular Range; Santa Ana Mtns., lower Weir Canyon, at narrow gorge c. 0.6 mi. above mouth of cyn at Irvine Ranch gate 192 Comment
  CAS-BOT-BC204438  Eragrostis cilianensis Helen D. Geis 1902-1-1 549 Orange Unspecified Comment
  POM298879  Eragrostis mexicana subsp. virescens Frank W. Gould 1944-6-25 2362 Orange Tournat Ranch, Garden Grove. Comment
  RSA226743  Eragrostis mexicana subsp. virescens I. L. Wiggins 1965-11-7 20358 Orange Vacant lot between State College Blvd. and Troy High School Campus, Fullerton. 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
  UCD64312  Eragrostis pectinacea Beecher Crampton 1965-10-27 7583 Orange 2 miles E of Irvine, UC South Coast Field Station. Comment
  POM201866  Eremocarpus setiger L. M. Booth 1932-5-12 1021 Orange Newport Bay. Comment
  SEINET7067527  Eremocarpus setiger A. G. Vestal 1947-6-12 s.n. Orange Trabuco Canyon. Coordinate datum: NAD27. UTM Zone 11, 447562mE, 3725206mN. Comment
  RSA0105523  Eriastrum densifolium subsp. austromontanum M. Clinton 1931-6-24 s.n. Orange South Fork S.A. River. 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
  UCR237929  Eriastrum sapphirinum Dick Newell, Don Millar 2012-6-5 272 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Limestone Ridge Rd. at Markel Spur 435 Comment
  RSA0121315  Eriastrum sapphirinum subsp. dasyanthum L. M. Booth 813 Orange Santa Ana Canyon. Comment
  UCD131585  Ericameria P. B. Kennedy 1925-1-12 10 Orange Irvine Ranch. Comment
  RSA759242  Ericameria cuneata Robt Allen, Reginald Durant 2008-5-16 s.n. Orange Modjeska Peak. W Facing slope within 2 meters of the access road up Modjeska Peak. Approximately midway between the peak's south-facing slope and the sharp bend in extreme N end of the road. 1643 Comment
  IRVC762  Ericameria linearifolia J. Pierce 1965-4-5 Orange Laguna Canyon. Laguna Beach Comment
  UCR210049  Ericameria palmeri A. C. Sanders, Fred M. Roberts, Jutta Burger 2009-10-21 37197 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Limestone Canyon, west of Limestone Canyon Rd. 366 Comment
  CHSC35339  Ericameria palmeri var. pachylepis James Henrickson 1972-10-21 8076 Orange Newport Beach, So. of Jamboree Rd., E. of Irvine Coast Country Club near U.C. Irvine. Fields near golf course. 45 Comment
  POM201508  Ericameria palmeri var. pachylepis L. M. Booth 811 Orange Santa Ana Canyon Comment
  RSA554643  Ericameria palmeri var. pachylepis Scott D. White 1992-9-29 866 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
  SEINET7073539  Ericameria palmeri var. pachylepis A. G. Vestal 1963-3-27 s.n. Orange Ridge above Cai+-ada Gobernadora. About 6.2 miles up. UTM Zone 11, 446709mN, 3718372mN. Coordinate datum: NAD27. Comment
  UCR220966  Ericameria palmeri var. pachylepis Dick Newell, Don Millar, Michael Dresser 2010-9-21 034 Orange South Coast, access road on east side of Laguna Canyon Rd. at Stage Coach, 1.22 miles north of Hwy 73 toll road 111 Comment
  SEINET5708382 Image available Ericameria palmeri var. pachylepis C. W. Tilforth 1976-1 1228 Orange Open slopes above Santa Ana Canyon on Rancho Santa Ana property.; Santa Ana Canyon Comment
  RSA38491  Ericameria parishii Percy C. Everett 1945-11-13 11512 Orange Indian Canyon Truck Trail, Indian Canyon, Santa Ana Mts. 960 Comment
  RSA708533  Ericameria parishii var. parishii Fred M. Roberts, Robert L. Allen, Chris Barnhill 2004-8-21 6106 Orange Caspers Wilderness Park, Hot Springs Cyn., Hot Springs Trail, c.a. 0.16km WSW San Juan Ranger Station, north of SR 74. 212 Comment
  RSA696783  Erigeron foliosus Minor Warne 1934-5-19 s.n. Orange Trabuco. Comment
  UCR261718  Erigeron foliosus Dick Newell, Judy Booth 2014-5-15 372 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, Maple Springs Rd./Silverado Canyon Rd., 0.87 road miles east of the lower Maple Springs gate 623 Comment
  SD247658  Eriodictyon crassifolium R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49682 Orange Northern Santa Ana Mountains:Coal Canyon [NW of Sierra Peak]. 456 Comment
  RSA211  Eriogonum elongatum J. T. Howell 1927-9-24 741 Orange Santa Ana Botany Garden 152 Comment
  RSA3099  Eriogonum fasciculatum Carl B. Wolf 1931-8-9 2300 Orange 1/2 mile south of Corona del Mar beach 8 Comment
  RSA0027780  Eriogonum fasciculatum R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49677 -a Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak] 457 Comment
  RSA650634  Eriogonum fasciculatum subsp. fasciculatum Daniel Truong 1991-5-13 22 Orange Irvine Regional Park, left field adjacent to main entrance, within 1/4 mile radius of 'closed area' Comment
  UCR250868  Eriogonum fasciculatum subsp. polifolium Dick Newell, Judy Booth 2014-4-27 365 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, Maple Springs Road 0.8 mi. ENE of lower gate 632 Comment
  CAS-BOT-BC253216  Eriogonum fasciculatum var. fasciculatum John Thomas Howell 1927-7-24 2835 Orange Near mouth of Claymine Canyon, Santa Ana Canyon 152 Comment
  CAS-BOT-BC253222  Eriogonum fasciculatum var. fasciculatum David D. Keck 1932-9-30 1903 Orange 2 mi. W. of Laguna Beach Comment
  CAS-BOT-BC249945  Eriogonum fasciculatum var. foliolosum David D. Keck 1932-9-30 1903 Orange 2 mi. W. of Laguna Beach Comment
  RSA214  Eriogonum fasciculatum var. foliolosum J. T. Howell 1927-7-24 474 Orange Santa Ana River bottom near Rancho Santa Ana. 152 Comment
  RSA542525  Eriogonum fasciculatum var. foliolosum Fred M. Roberts 1988-5-13 3971 Orange Lomas de Santiago: Loma Ridge, Upper Limestone Canyon near spring, 2.3 km NW Bolero Lookout. 439 Comment
  RSA791469  Eriogonum fasciculatum var. foliolosum Keith E. Hoffmaster 1928-5-29 313 Orange San Onofre. CP5. Comment
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Nov 19 2013
  RSA7639  Eriogonum fasciculatum var. polifolium Carl B. Wolf, E. R. Johnson 1933-11-3 5521 Orange Along main divide S of Bedford Peak. (common from Santiago Peak) Santa Ana Mountains. 1098 Comment
  UCR210064  Eriogonum gracile A. C. Sanders, Fred M. Roberts, Jutta Burger 2009-10-21 37195 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Limestone Canyon, west of Limestone Canyon Rd. 366 Comment
  CAS-BOT-BC253480  Eriogonum gracile Cecil Hart 1923-6-17 s.n. Orange San Gabriel River Comment
  UC534937  Eriogonum parvifolium Susan G. Stokes 1932-8-29 21 Orange Doheney's Palisades, near San Clemente, San Diego Co. Comment
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Oct 21 2009
  UCR46823  Eriogonum parvifolium T. R. Van Devender, R. K. Van Devender 1986-11-16 86- 214 Orange 3.2 miles northwest of Laguna Beach on Highway 1 at Pelican Point 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
  POM49002  Eriogonum parvifolium var. parvifolium Grout, S. Grout 1904-08 s.n. Orange Laguna Beach Comment
  RSA424463  Eriogonum parvifolium var. parvifolium E. S. Spalding 1923-12-1 s.n. Orange Opposite San Juan Capistrano Comment
  UC912801  Eriogonum thurberi E. R. Johnson 1933-6-22 4999 Orange river bottom s Walnut Grove; Rancho Santa Ana, Santa Ana Canyon 121 Comment
  UCD132115  Eriophyllum confertiflorum R. Townsend 1939-3-29 163 Orange Lower Telegraph Canyon. Comment
  UCR192997  Eriophyllum confertiflorum A. C. Sanders, T. B. Salvato 2008-5-13 35342 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
  UC421696  Eriophyllum confertiflorum var. confertiflorum John Thomas Howell 1927-6-26 2592 Orange Claymine Canyon n. Santa Ana Mts., Claymine Canyon 243 Comment
  IRVC1395  Erodium botrys Diane Ibbetson 1965-4-3 HS 202 Orange Ortega Hwy. Southern Coastal Comment
  UCR103158  Erodium brachycarpum Scott D. White 1997-3-25 4822 Orange University of California, Irvine campus, site of proposed student recreation center, east of main campus. Existing 'Farm School' and grasslands (horse pasture) between California Avenue and Culver Drive. 30 Comment
  UCR191367  Erodium cicutarium A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34622 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 290 Comment
  RSA423  Erodium moschatum J. T. Howell 1928-2-7 824 Orange Near the ranch houses, Rancho Santa Ana 152 Comment
  CAS-BOT-BC41525  Erysimum capitatum Helen D. Geis 1902-1-1 528 Orange Santiago Creek. Comment
  JEPS53573  Erysimum capitatum var. capitatum Alice Mary King Feb. 1908 Orange Santiago Creek Santa Ana Mts. Comment
  RSA0060574  Eschscholzia californica Darren Day, Hal Willis 1984-4-28 005 Orange Found growing at the side of Laguna Canyon Rd. exactly 2.5 miles outside of the city limits, heading north. Comment
  RSA722437  Eschscholzia californica Unspecified s.n. Orange Santa Ana Comment
  UCSB18078  Eschscholzia californica Shaw, Merrilee 1963-4-10 Orange Fernlead Drive, at intersection with Bayshore Drive, 1/2 mile S of U.S. Highway 101, Corona del Mar 24 Comment
  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
  RSA753034  Eucalyptus sideroxylon A. C. Sanders, Fred M. Roberts 2008-9-18 36077 Orange Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge. 320 Comment
  POM4517  Eucrypta chrysanthemifolia P. A. Munz 1918-5-5 2174 Orange Laguna. Comment
  POM6266  Eucrypta chrysanthemifolia P. A. Munz, Street, Williams 1919-5-3 2673 Orange Santa Ana River Canyon. Comment
  RSA704833  Eucrypta chrysanthemifolia Unspecified s.n. Orange Modjeska s Home. Comment
  UC1607994  Eucrypta chrysanthemifolia var. chrysanthemifolia Donald G. Nelson 1935-7-6 224 Orange San Juan Canyon 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
  SD220055  Euphorbia albomarginata Mark A. Elvin 2004-5-2 3428 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7 km (air) NNW UC Irvine campus center. 3 Comment
  RSA2077  Euphorbia crenulata C. B. Wolf 1931-3-6 1852 Orange Trabuco Canyon, 1.5 mile below Trabuco Camp Grounds, west slope of Santa Ana Mountains. 610 Comment
  RSA518463  Euphorbia misera Gary D. Wallace 1966-4-30 522 Orange West of Dana Point. 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
  POM201861  Euphorbia peplus L. M. Booth 1932-7-23 1303 Orange Corona del Mar, Newport Beach. Comment
  UCSB56679  Euphorbia peplus Roberts, Jr., Fred 1984-2-4 Orange South Laguna; Aliso Canyon near mouth, 0.7 km. WNW Aliso Peak 15 Comment
  RSA697596  Euphorbia polycarpa Minor Warne 1934-5-19 s.n. Orange Trabuco. Comment
  RSA0018988  Euphorbia serpens Oscar F. Clarke 2004-8-23 s.n. Orange Santa Ana River Valley: Yorba Linda, Yorba Regional Park, Santa Ana River bank near intersection of E. La Palma Ave. and Fairmont Blvd. 91 Comment
  SD181549  Euphorbia serpens Louis C. Wheeler 1946-8-8 6225 Orange Imperial Highway 0.25 mile west of Caroline Ave., 2.0 miles eastsoutheast of Brea. Comment
  RSA552  Eustoma exaltatum J. T. Howell 1927-9-24 749 Orange Santa Ana River Bottom, Rancho Santa Ana 152 Comment
  JEPS32340  Euthamia occidentalis John Thomas Howell 1927-10-22 3167 Orange Rancho Santa Ana Santa Ana River bottom 152 Comment
  SEINET6186107  Euthamia occidentalis R. E. Riefner Jr. 2006-1 06 -666 Orange City of Newport Beach, urban creek draining into San Diego Creek at confluence with Newport Bay; San Diego Creek at SR-73 overpass. USGS QUAD: San Joaquin Gun Club, Tustin 6 Comment
  UCSB47952  Festuca microstachys Roberts, D. 1980-5-3 Orange 2.0 km West Trabuco peak (on Main divide Truck trail) 125 Comment
  UCR100181  Festuca myuros Scott D. White 1993-3-5 1116 Orange Tustin. Marine Air Corps Air Station: SE of Red Hill Ave and NE of Barranca 15 Comment
  UCR102442  Festuca myuros Scott D. White 1997-3-26 4815 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
  UCR223964  Festuca myuros Fred M. Roberts 2008-4-9 6854 Orange South Coast, Dana Point, Dana Point Headlands, CNLM Preserve, near Outlook 2, 0.7 km west of Marine Institute, Dana Point Harbor 52 Comment
  UCR102013  Festuca myuros var. myuros B. G. Pitzer 1997-3-25 3007 Orange San Joaquin Hills, Crystal Cove State Park, Pelican Point Area, grassland between Pacific Coast Hwy and the bike trail 30 Comment
  CDA22544  Festuca rubra Gordon Marsh, Karlin G. Marsh 1977-5-18 Orange Laguna Niguel: One block from Pacific Coast Highway on Mariners Drive. 0 Comment
  CAS-BOT-BC474738  Ficus microcarpa R. E. Riefner, Jr. 2015-8-29 15 -368 Orange City of Rancho Santa Margarita, Trabuco Marketplace, Rancho Santa Margarita Blvd. at Plano Trabuco 363 Comment
  CAS-BOT-BC500431  Ficus microcarpa R. E. Riefner, Jr. 2014-7-13 14 -222 Orange City of Irvine, S side of Red Hill Ave. bridge, E of 405 Freeway N-bound lane 31 Comment
  RSA0088635  Ficus microcarpa R. E. Riefner Jr. 2014-6-21 14 -186 Orange City of Laguna Beach, N side of North Coast Highway near intersection with Cliff Dr. 10 Comment
  UCR267276  Ficus microcarpa R. E. Riefner Jr. 2014-11-26 14- 399 Orange City of Irvine, west of Irvine Blvd. and south of Pusan Way, former MCAS El Toro facility 138 Comment
  CAS-BOT-BC414247  Ficus rubiginosa R. E. Riefner, Jr. 2011-8-25 11 -119 Orange City of Laguna Beach, Aliso Creek Park, rocky and bluff between Aliso Beach Park and West St. 7 Comment
  RSA649064  Filago arizonica D. E. Bramlet 2000-4-17 2986 Orange West of Blind Cyn. and North of Irvine Park. The site is 1.9 km west of Blind Canyon and 366m north of Irvine Park. This locality is 31m southwest of the MWD access road. 268 Comment
  IRVC25411  Filago californica Fred M. Roberts, Wayne Ferren 1987-4-8 3360 Orange Upper Newport Back Bay, west side, North Star Beach, 0.8km N Coney Island, Newport Beach 0 Comment
  RSA0057937  Filago californica Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49668 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. Comment
  RSA588652  Filago californica Fred M. Roberts, Carol A. Roberts 1990-5-23 4657 Orange Santa Ana Mts.: West Fork, Upper Long Canyon, Main Divide Truck Trail, 4.3 km SE Los Pinos Peak. 753 Comment
  IRVC25385  Filago gallica Fred M. Roberts 1987-4-3 3354 Orange San Joaquin Hills; Irvine; central Shady Canyon, 2.9km NE Signal Hill. Central coastal 107 Comment
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Feb 17 2017
  CLARK-A1528-140  Foeniculum vulgare Brian L. Estes 1960-7-23 Orange San Juan Capistrano Comment
  CAS-BOT-BC63073  Frangula californica subsp. californica John Thomas Howell 1927-6-26 2605 Orange Claymine Canyon, n. Santa Ana Mts. 457 Comment
  CAS-BOT-BC53334  Frangula californica subsp. cuspidata Carl B. Wolf 1933-8-24 5391 Orange Santa Ana Mts. Summit of Santiago Pk. 1731 Comment
  CAS-BOT-BC53336  Frangula californica subsp. cuspidata P. C. Everett 1935-6-18 7217 Orange Santa Ana Mts., Summit of Santiago Pk. 1731 Comment
  RSA144566  Frankenia grandifolia Peter H. Raven 1958-6-5 13563 Orange Just north of Surfside Comment
  RSA477  Frankenia grandifolia J. T. Howell 1927-6-30 248 Orange Bryant Ranch near Long Beach. 15 Comment
  RSA5859  Frankenia grandifolia Carl B. Wolf 1932-6-28 3784 Orange Edge of field on Bryant Ave. 9 Comment
  RSA609140  Frankenia grandifolia Louis C. Wheeler 1932-6-22 844 Orange Newport Bay. 1 Comment
  PASA433  Frankenia grandifolia var. campestris Frank W. Peirson 1924-8-29 Orange 4 miles south of Santa Ana Comment
  UC1543183  Frankenia salina Donald G. Nelson 1935-6-27 331 Orange beaches s Corona del Mar (on bluffs facing ocean, near edge of salt marsh in ravine, s of mouth of Newport Bay) Comment
  RSA69893  Fraxinus dipetala F. W. Peirson 1925-4-10 5743 Orange In Silverado Canyon. 610 Comment
  UCR139446  Fraxinus velutina var. coriacea E. R. Johnson 1936-4-27 7781 Orange Santa Ana River Canyon, Rancho Santa Ana Botanic Garden, Santa Ana River SW of Mexican Village 122 Comment
  RSA0041476  Fraxinus velutina var. coriacea Fred M. Roberts, Carol A. Roberts 1988-7-5 4108 Orange Santa Ana Mts: San Juan Canyon, 0.4 km SW Lower San Juan Picnic Ground. 410 Comment
  SEINET10492275  Fuchsia hybrida David B. Dunn 1971-8-13 Dunn 18111 Orange Cultivated plants at costa mesa. Comment
  CAS-BOT-BC422452  Fumaria officinalis Ira L. Wiggins 1966-2-16 20445 -A Orange On N. side of Yorba Linda Blvd., near corner of Associated Road, Fullerton. Comment
  CAS-BOT-BC422453  Fumaria officinalis Ira L. Wiggins 1965-12-5 20366 Orange 2 mi. E. of Atwood on N. side of Orangethorpe Avenue. Comment
  RSA759247  Funastrum cynanchoides var. hartwegii Robt. Allen, Alison Linden 2007-5-17 s.n. Orange Irvine, Turtle Rock community, Chaparral Park, due N of Turtle Rock Dr, due E of Highgate terrace. 136 Comment
  RSA647961  Galium angustifolium Mark Breidenbaugh, Caralisa Breidenbaugh 1992-5-15 28 Orange 1/2 mile south of Chino Hills State Park. 168 Comment
  UCR140808  Galium angustifolium Robin G. Marushia 2004-4-16 018 Orange Southern Coast, El Moro Canyon, Crystal Cove State Park, Laguna Beach; grassy ridge southwest of No Name Ridge road in park, downhill from pullout and below closed road to park entrance 244 Comment
  UCR240086  Galium angustifolium Dick Newell, Judy Booth 2012-6-3 263 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
  UCR247904  Galium angustifolium Fred M. Roberts 2013-6-12 7790 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
  UCR76745  Galium angustifolium B. G. Pitzer, Stu Hemstreet 1992-5-27 1961 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
  JEPS56094  Galium angustifolium subsp. angustifolium Lauramay T. Dempster and G. L. Stebbins 1967-3-21 4354 Orange along road from Pomono to Brea ca 1 mi sw Orange-San Bern. Co. line (s-facing hillside); Carbon Canyon Comment
  JEPS7865  Galium angustifolium subsp. angustifolium Lawrence M. Booth 1932-6-4 1252 Orange Newport Bay Comment
  RSA609650  Galium angustifolium subsp. angustifolium R. S. Woglum 1938-5-8 1615 Orange Peninsular Ranges: Capistrano to Elsinore; Santa Ana Mountains [Orange and Riverside counties]. Comment
  UCR227752  Galium angustifolium subsp. angustifolium R. F. Thorne 1963-7-26 32825 Orange Santa Ana Mountains, Cleveland National Forest, [vicinity of road from Beek's Spring to Pleasants Peak], Trabuco District 1159 Comment
  UCR242701  Galium angustifolium subsp. angustifolium Fred M. Roberts 2012-5-10 7579 Orange SAN JOAQUIN HILLS: Buck Gully, south tributary, north slope Pelican Hill, just north of Pelican Hills Drive, 0.7 km N Pelican Hill summit 154 Comment
  UCR97638  Galium angustifolium subsp. angustifolium George K. Helmkamp, E. A. Helmkamp 1997-4-24 1651 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
  RSA747595  Galium angustifolium var. angustifolium Fred M. Roberts 2000-5-19 5328 Orange Lomas de Santiago: Loma Ridge, ridge west of Bee Peak above Bee Cyn. landfill, 0.2 km W Bee Peak. 500 Comment
  RSA780824  Galium aparine Sandy Leatherman 2011-5-2 2011 -13 Orange Peninsular Ranges; Chino-Puente Hills region; along a trail 65 meters north of the water tanks at the terminus of Olinda Road in Carbon Canyon in the City of Brea 413 Comment
  UCR239620  Galium nuttallii subsp. nuttallii Fred M. Roberts 2012-4-24 7500 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
  UCSB56680  Galium nuttallii subsp. nuttallii Roberts, Fred 1984-1-29 Orange Laguna Niguel: Niguel Hill, 1.1 km. ENE Aliso Peak; 2.0 Km. SW Alicia Fire Station 260 Comment
  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
  CAS-BOT-BC178504  Garrya flavescens Le Roy Abrams 1901-6-15 1811 Orange Santiago Peak Trail Comment
  SBBG52808  Garrya flavescens C. Davidson 1977-5-18 5605 Orange Pleasant Peak (on Orange-Riverside Co line) 1219 Comment
  RSA790669  Garrya flavescens subsp. pallida Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49700 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  RSA101783  Garrya flavescens var. pallida R. Weatherby 1950-2-25 1023 Orange Harding Canyon, Santa Ana Mountains. 579 Comment
  RSA608241  Garrya flavescens var. pallida Steve Boyd, Bart O'Brien 1998-1-13 10075 Orange Santa Ana Mountains: north end of the range, head of Tin Mine Canyon along Main Divide Road (3S04) ca. 1.8 mi south of Oak Flat. 884 Comment
  POM266619  Gastridium phleoides J. C. Roos 1937-5-21 2284 Orange Lemon Heights Comment
  RSA586253  Gastridium phleoides R. E. Riefner 1994-9-6 95 -560 Orange San Clemente State Beach Comment
  CDA25797  Gastridium ventricosum A. C. Sanders, Fred M. Roberts, A. O Neal 2008-5-9 35321 Orange Peninsular Range; Santa Ana Mountains; Weir Canyon, 0.3 mile west of Eastern Transportation Corridor (Highway 241) and 1.45 miles east of south end of Walnut Canyon Reservoir. Comment
  RSA0045353  Gastridium ventricosum Keith E. Hoffmaster 1935-5-5 120 Orange San Juan Can., Santa Ana Mts. Comment
  POM255092  Gaura odorata E. Johnson 1940-8-15 s.n. Orange Kokke estate, I.5 miles north of Placentia. Comment
  RSA39481  Gaura parviflora E. L. Paddock 1943-6-8 12730 Orange Whittier Road 1/4 mile west of Puente Street, Brea. Comment
  CDA5233  Gaura sinuata E. Dudley Aug 1939 Orange 0 Comment
  RSA759533  Genista Robt. Allen 2006-12-13 s.n. Orange Holy Jim Canyon community, circa 50 meters below Forest Gate. Within 2-10 m of access road 640 Comment
  RSA732157  Geranium carolinianum A. C. Sanders, Fred M. Roberts 2008-4-22 35031 Orange Santa Ana Mtns.: Lomas de Santiago, Limestone Canyon, c. 2 miles SW of Silverado. 1200 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
  RSA702805  Geranium carolinianum D. E. Bramlet, F. M. Roberts 2003-3-27 3357 Orange Donna O Neill Reserve. 152 m. W of Cristianitos Rd. and 1.4 km. N of the E-W access road. 113 Comment
  UCR253009  Geranium incanum Robert DeRuff 2012-3-9 580 Orange South Coast, Newport Back Bay, Northstar Beach park near Newport Aquatic Center 5 Comment
  POM10159  Gilia angelensis P. A. Munz, R. D. Harwood 1920-4-24 3766 Orange Santa Ana Mountains, Sierra [Freemont] Canyon 366 Comment
  RSA636  Gilia angelensis J. T. Howell 1928-2-25 836 Orange Near Bee Canyon, Rancho Santa Ana. 152 Comment
  SEINET6969922  Gilia angelensis W. P. Vestal, A. G. Vestal 1955-3-24 3460 Orange Trabuco Canyon, about 5 miles east of El Toro. Comment
  RSA470265  Gilia capitata subsp. abrotanifolia Anstruther Davidson s.n. Orange Corona Del Mar Comment
  RSA698358  Gilia tricolor Kenneth Beard s.n. Orange Silverado Canyon. Comment
  RSA39114  Gladiolus italicus E. L. Paddock 1947-4-19 12289 Orange Walnut grove in Santa Ana (north side of Manchester, half way between Flower and Main Streets also on east 17th St., 0.3 mile east of Grand) Comment
  UC864091  Glycyrrhiza lepidota Louis C. Wheeler 1932-7-9 942 Orange 5 mi below Prado; Santa Ana River 152 Comment
  RSA0045511  Gnaphalium beneolens Dorothy Parsons 1932-5-15 s.n. Orange Irvine Park road. PR8. Comment
  RSA588723  Gnaphalium californicum Fred M. Roberts 1990-5-7 4607 Orange Rancho Mission Viejo: Ridge S of Blind Canyon and E of Christianitos Canyon, TRW Lease Holding, 5.0 km NE Clemente Survey Marker 152 Comment
  RSA696916  Gnaphalium californicum Mabel Harvey s.n. Orange Silverado Canyon Comment
  UCR192082  Gnaphalium californicum A. C. Sanders, Fred M. Roberts, Amber O'Neal, D. E. Bramlet 2008-5-9 35303 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along old dirt road, c. 1.25 mi. ESE of Walnut Cyn Reservoir 340 Comment
  RSA688984  Gnaphalium canescens subsp. microcephalum Fred M. Roberts, David E. Bramlet 2003-4-10 5642 Orange Rancho Mission Viejo: Donna O'Neill Land conservancy, Back Road, ridge between Cristianitos Cyn, and Segunda Deshecha Canada, 1.45km WNW Gato Gate. 216 Comment
  UCR66090  Gnaphalium canescens subsp. microcephalum A. C. Sanders 1990-10-6 10194 Orange South Coast, Newport Back Bay, SW side at North Star County Beach, SW end of the bay, c. 2 km inland from Hwy 1/ Pacific Coast Hwy 3 Comment
  RSA683220  Gnaphalium leucocephalum Scott D. White, Matt Carlton 2003-11-20 9874 Orange Santa Ana Mountain foothills: San Juan Creek in San Juan Capistrano. 37 Comment
  UCR162881  Gnaphalium leucocephalum Fred M. Roberts 2004-7-30 6088 Orange Rancho Mission Viejo; Donna O'Neill Land Conservancy, Cristianitos Canyon along Cristianitos Creek, 0.93 km SSW Gato Gate and 0.23 km W Cristianitos Road 76 Comment
  IRVC19530  Gnaphalium luteo-album R. L. Allen 1983-2-24 A644 Orange 3160 Air[way] Ave. along Paularino; weed in blue grass lawn. Costa Mesa Comment
  RSA733874  Gnaphalium palustre A. C. Sanders, Fred M. Roberts 2008-4-8 34736 Orange Peninsular Range: Lomas de Santiago, Loma Ridge, head of Hicks Canyon. S of Santiago Reservoir. 351 Comment
  IRVC29561  Gnaphalium stramineum Mark A. Elvin, P. A. Bowler 2006-5-13 4861 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7km (air) NNW UC Irvine campus center. Southern Coastal 3 Comment
  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
  RSA202179  Grindelia camporum var. bracteosa L. M. Booth 1932-5-24 1092 Orange Newport Bay, Public Golf Course. Comment
  RSA234515  Grindelia camporum var. bracteosa James Henrickson 1970-7-24 4962 Orange 1.5 miles NW of Huntington Beach, along border of Bolsa Chica Salt Marsh at SW end of Huntington Beach Mesa. 8 Comment
  UCR113450  Grindelia camporum var. bracteosa R. E. Riefner Jr. 2000-7-8 20- 626 Orange Peninsular Range, Santa Ana Mountains, North Ranch Policy Plan Area, on ridgetop overlooking W fork of Fremont Canyon, east of Main Divide Road along the powerline 396 Comment
  UCR119299  Grindelia camporum var. bracteosa R. E. Riefner Jr. 2000-7-8 20- 626 Orange Peninsular Range, Santa Ana Mountains, North Ranch Policy Plan Area, on ridgetop overlooking W fork of Fremont Canyon, east of Main Divide Road along the powerline 396 Comment
  CAS-BOT-BC305206  Grindelia hirsutula Carl B. Wolf 1932-7-2 3810 Orange Olinda. Valencia Ave., opposite Olinda Pilgrim Church 152 Comment
  CAS-BOT-BC305211  Grindelia hirsutula LeRoy Abrams 1903-4-19 3273 Orange Capistrano Comment
  UC729956  Grindelia hirsutula Carl B. Wolf 1932-7-2 3810 Orange Valencia Ave opposite Olinda Pilgrim Church; Olinda 152 Comment
  RSA542434  Grindelia robusta Fred M. Roberts, Karlin G. Marsh 1988-4-25 3930 Orange San Joaquin Hills: Irvine Coast, 1.1km SW Pelican Hill. 44 Comment
  RSA753161  Guillenia lasiophylla D. E. Bramlet 2008-3-31 4133 Orange 305m E of Upper Hicks Haul Rd, in Trib to Limestone Cyn., 1km S of Santiago Cyn. Rd. 311 Comment
  POM201690  Gutierrezia californica L. M. Booth 814 Orange Santa Ana Canyon Comment
  POM359185  Gutierrezia californica F. R. Fosberg 1931-6-21 749 Orange Lower Santiago Canyon. Comment
  RSA750926  Gutierrezia californica A. C. Sanders, Fred M. Roberts 2008-7-3 35698 Orange Santa Ana Mtns.: Weir Canyon, along Windy Ridge Rd. at hairpin turn/road junction below huge sandstone boulder (visible on Google Earth), 1.2 mi. SE of Walnut Canyon Reservoir. 275 Comment
  LA203632  Gutierrezia sarothrae John Thomas Howell; 1927-7-22 2816 Orange Santa Ana Canyon Comment
  UCD85224  Hainardia cylindrica A. A. Beetle 1942-4-19 3092 Orange 20 miles S of Santa Ana, road to Laguna. Comment
  RSA581359  Hainardia cylindrica R. E. Riefner 1995-6-28 95 -256 Orange Along margins of vernal pools. Surf Beach, San Onofre State Beach. Comment
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Nov 19 2013
  UCR103284  Haplopappus venetus B. G. Pitzer, T. Tennant 1997-11-8 3377 Orange San Joaquin Hills, Crystal Cove State Park, Pelican Point Area, grassland area between Pacific Coast Hwy and the bike trail. 30 Comment
  UCR132982  Harpagonella palmeri Adrian Wolf 2000-4-10 451 Orange Santa Ana Mtns., North Ranch Policy Plan Area, North Baker Canyon Road 351 Comment
  HSC93899  Hedypnois cretica D. Atwood 1993-3-28 17716 Orange Bolsa Chica Ecological Reserve, California Dept. of Fish and Game 0 Comment
  UCR158031  Hedypnois cretica Adrian Wolf 1998-5-15 287 Orange South Coast, Dana Point Headlands, north of Scenic Dr. 67 Comment
  UCR190995  Hedypnois cretica A. C. Sanders, Fred M. Roberts 2008-4-22 35059 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge c. 1/4 mi. SE of VABM Bee, above Bee Canyon landfill on road from Hicks Canyon Haul Rd. to Limestone Canyon, c. 3.5 miles WSW of Silverado 493 Comment
  CAS-BOT-BC309484  Helenium puberulum B. Pitzer; T. Tennant 1997-11-8 3363 Orange Crystal Cove State Park, along Moro Canyon Trail, from beginning to a point ca. 1.75 mi. up the canyon 85 Comment
  IRVC15334  Helenium puberulum A. S. Boughey 1968-7-9 395 Orange Santa Ana mtns: upper Santiago Canyon. Peninsular Ranges Comment
  RSA479  Helianthemum scoparium var. vulgare J. T. Howell 1928-4-15 920 Orange Bluffs at eastern boundary of the Rancho Santa Ana Comment
  CAS-BOT-BC305444  Helianthus annuus Ira L. Wiggins 1966-5-18 20662 Orange Along Associated Road between Yorba Linda Blvd. and Imperial Highway Comment
  IRVC777  Helianthus annuus D. Christy 1973-8-1 Orange Newport Back Bay. L.J. Colin MACF 20494. Newport Beach: Bayside Dr. Newport Beach Comment
  UCD132887  Helianthus annuus Ira L. Wiggins 1965-11-6 20339 Orange Kraemer Oil Estates, near well no. 14, near end of county road leading to Rancho santa Ana (extension of Orangethorpe Blvd.) Comment
  UC774875  Helianthus ciliaris E. L. Paddock 1941-8-1 Orange 2 mi e Brea; Graham-Loftus property Comment
  CAS-BOT-BC305676  Helianthus gracilentus John Thomas Howell 1927-7-3 2638 Orange Claymine Canon [Canyon], n. Santa Ana Mts. 304 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
  HSC94287  Helianthus niveus subsp. canescens D. Atwood 1993-3-27 17701 Orange Corona Del Mar State Park along Newport Coast Drive. 0 Comment
  RSA0012952  Helianthus nuttallii subsp. parishii L. M. Booth 1933-8-26 1388 Orange Far end of Newport Lagoon Comment
  IRVC9340  Heliotropium curassavicum subsp. oculatum B. T. Gittins 1967-6-11 2014 Orange Upper Newport Bay. southern coastal Comment
  POM319997  Heliotropium curassavicum var. oculatum Greg Wright 1971-7-17 313 Orange Pacific Coast Highway south of Laguna, Aliso Creek, inland from highway. 8 Comment
  RSA184178  Heliotropium curassavicum var. oculatum I. L. Wiggins 1965-11-6 20349 Orange Near well #14, Kramer Oil Estates, near end of county road to Rancho Santa Ana. Comment
  RSA233017  Heliotropium curassavicum var. oculatum Christopher Davidson, Gerald L. Benny 1971-6-15 1556 Orange Carbon Canyon, 1 mile SW of Carbon Canyon mineral spring. Comment
  RSA647  Heliotropium curassavicum var. oculatum J. T. Howell 1927-6-17 159 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA254941  Hemizonia australis C. W. Tilforth 1975-9-6 1047 Orange Upper Bay, Newport Beach: North-east shoreline. Comment
  RSA520925  Hemizonia australis D. E. Bramlet 1990-11-3 2064 Orange W side Upper Newport Back Bay, ca 50 m NW of the Delhi channel. Population ca 100 m SE of end of University Dr. 23 Comment
  RSA750921  Hemizonia fasciculata A. C. Sanders, Fred M. Roberts 2008-7-3 35705 Orange Weir Canyon, along Weir Canyon Rd. 1.2 mi. SSE of Walnut Canyon Reservoir, below Upper Blind Canyon Rd. 212 Comment
  UCR131870  Hemizonia fasciculata J. Mallory, V. McCoy 1995-7-3 6454- 73 Orange Santa Ana Mountains: N-facing slope in Santiago Canyon, c. 0.5 mi. east of Santiago Canyon Rd; near Irvine Park 200 Comment
  UCR1475  Hemizonia fasciculata B. L. Estes 1960-7-23 s.n. Orange South Coastal Plains Region, San Clemente, 5 ft. from pavement at corner of So. Calle Seville and West Ave. Victoria 30 Comment
  UCR209334  Hemizonia fasciculata Fred M. Roberts 2008-7-10 7064 Orange South Coast, Dana Point Headlands, CNLM Preserve, near Strands Road Gate, 0.8 km west-northwest of Marine Institute, Dana Point Harbor 65 Comment
  SEINET2073394  Hemizonia fasciculata R. Beal 1980-5-6 Orange Dana Point, above Pacific Ocean, growing in hard-packed sand of sand hill. Comment
  UCR261698  Hemizonia parryi subsp. australis Dick Newell, Don Millar, Judy Booth 2015-5-27 407 Orange South Coast, Newport Beach, New Delhi Channel near University Drive 4 Comment
  UCR66261  Hemizonia parryi subsp. australis D. E. Bramlet 1990-11-3 2064 Orange W side Upper Newport Back Bay, c. 50 m NW of the Delhi channel. Population c. 100 m SE of end of University Dr. 23 Comment
  CAS-BOT-BC403799  Hesperocnide tenella Steve Boyd; Tim Ross 1992-5-19 7440 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
  SBBG56425  Hesperocyparis forbesii H. C. Jackson 1936-5-15 Orange Santa Ana Cyn Comment
  SD114979  Hesperocyparis forbesii Earl W. Lathrop 1976-11-17 7406 Orange 4 miles west of Corona in Gypsum Canyon north slope of Sierra Peak 609 Comment
  CAS-BOT-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
  UCR192076  Heteromeles arbutifolia A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35277 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir 300 Comment
  UCR193925  Heteromeles arbutifolia A. C. Sanders, Fred M. Roberts 2008-7-16 35840 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Dripping Springs off Limestone Canyon, c. 7.5 mi. ESE of Tustin 391 Comment
  IRVC25170  Heterotheca grandiflora Fred M. Roberts, B. Fugle 1986-10-1 3148 Orange Laguna Hills; creek channel along Cabot Rd. ca. 1.0km N Pacific Park Pkwy. Southern Coastal 99 Comment
  RSA0075824  Heterotheca grandiflora A. C. Sanders, Fred M. Roberts 2008-7-3 35697 Orange Santa Ana Mtns.: Weir Canyon, along Windy Ridge Rd. at hairpin turn/road junction below huge sandstone boulder (visible on Google Earth), 1.2 mi. SE of Walnut Canyon Reservoir. 275 Comment
  UCD150987  Heterotheca grandiflora D. S. Park 2010-4-25 32 -2 Orange Whiting Ranch Wilderness Park, along trail. 226 Comment
  UCR100186  Heterotheca grandiflora Scott D. White 1996-12-20 4639 Orange Santa Ana Mountains, above Modjeska Canyon; proposed water tank site 488 Comment
  CAS-BOT-BC318902  Heterotheca grandiflora J. Ewan 1931-10-3 s.n. Orange 1/2 mile above La Vida Soda Springs, Carbon Canyon Comment
  IRVC797  Heterotheca grandiflora B. Mawdsley 1965-4-4 Orange Corona del Mar. Newport Beach Comment
  RSA0075810  Heterotheca grandiflora Minor Warne 1934-5-12 s.n. Orange Newport Bluffs. Comment
  RSA0075818  Heterotheca grandiflora F. W. Peirson 1920-1-9 2350 Orange Sand near the point at Balboa Beach. Comment
  UCD133033  Heterotheca grandiflora W. G. Watkins 1936-3-10 s.n. Orange Orange. Comment
  POM146204  Heterotheca sessiliflora subsp. echioides F. M. Reed 1927-10-14 5502 Orange Summit of Sulfur Slide Hill, Santa Ana Canyon Comment
Read comments
May 1 2011
  RSA812  Heterotheca sessiliflora subsp. echioides J. T. Howell 1927-9-24 744 Orange Santa Ana River Bottom, Rancho Santa Ana 152 Comment
  UC537029  Heterotheca sessiliflora subsp. echioides Lawrence M. Booth 1932-7-29 1330 Orange Newport Lagoon Comment
  CAS-BOT-BC318988  Heterotheca sessiliflora var. echioides John Thomas Howell 1927-9-24 3109 Orange North side of Santa Ana Canyon 213 Comment
  CAS-BOT-BC55403  Hirschfeldia incana John Thomas Howell 1927-7-5 2649 Orange Santa Ana River bottom, Santa Ana Canyon. 152 Comment
  RSA732170  Hirschfeldia incana A. C. Sanders, Fred M. Roberts 2008-3-25 34540 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  RSA743501  Hirschfeldia incana Fred M. Roberts 2008-7-10 7077 Orange Dana Point: Dana Point Headlands, CNLM Preserve, near Strands Road Gate, 0.8km WNW Marine Institute, Dana Point Harbor. 65 Comment
  UCSB48229  Hirschfeldia incana Roberts, Fred 1981-7-8 Orange Rancho Mission Viejo: Calif. Rte. 74, 5.2 km ENE San Juan Capistrano by road 100 Comment
  CDA27090  Hoffmannseggia glauca Goodwin 1933-6-7 Orange 0 Comment
  CDA38363  Hoffmannseggia glauca M. K. Bellue 1933-6-3 s.n. Orange 0 Comment
  JEPS65636  Hoita orbicularis Alice King April, 1908 Orange near Santa Ana; Santa Ana River Comment
  RSA663167  Holodiscus discolor R. E. Riefner 2000-6-22 20 -574 Orange NCCP North Ranch Policy Plan Area, NE property; along National Forest boundary, at powerline. 756 Comment
  CAS-BOT-BC150003  Holodiscus discolor var. discolor B. D. Stark 1931-6-10 2248 Orange East fork of Claymine Canyon, north end of Santa Ana Mountains 304 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
  RSA701429  Hordeum depressum Rankin s.n. Orange Laguna Beach Comment
  SD181760  Hordeum depressum Valerie Soza, K. Clark,F. Roberts,W. Miller,L. R. Gross,G. Wallace 2001-4-4 1132 Orange Northern edge of Huntington Harbor: Seal Beach U.S. Naval Weapons Station, southeastern edge of Seal Beach National Wildlife Refuge, along roadside 3 Comment
  RSA642528  Hordeum intercedens D. E. Bramlet 1998-5-19 2620 Orange San Juan Hills. 1.13km west of La Pata Ave. and 1.22km north of Prima Deshecha Canada. On a ridgeline 213m east of a small canyon., UTM 11S 04 41 816mE X 37 06 152mN. 152 Comment
  RSA642530  Hordeum intercedens D. E. Bramlet 1998-5-19 2621 Orange San Juan Hills. 4,400 ft. west of La Pata Ave. and 10,000 ft. north of Prima Deshecha Canada. On a ridgeline 500 ft. east of a small canyon., UTM 11S 04 41 529mE X 37 06 455mN. 91 Comment
  SD255611  Hordeum intercedens D. E. Bramlet 2001-5-15 3143 Orange Santa Ana Mountains Foothills: upper watershed of Deep Canyon, 1300ft E of Krum Reservoir, c. 2 miles SE of San Juan Capistrano, 1200 ft S of Avenida Placida, W of the Prima Desecha landfill (Dana Point 7.5'Q) 200 Comment
  UCR150375  Hordeum intercedens D. E. Bramlet 1998-5-19 2620 Orange Coastal Plains & Basins/Los Angeles Basin region, San Juan Hills: 1.13 km west of La Pata Ave. and 1.22 km N of Prima Deshecha Canada. A ridgeline 213 m east of a small canyon 152 Comment
  UCR158149  Hordeum intercedens Adrian Wolf 1998-5-4 204 Orange South Coast, Coastal Hills, Aliso/Woods Canyon Regional Park, trail to Dripping Cave, in Woods Canyon 1 km up from confluence with Aliso Canyon, west of Sheep Hills, south of Dripping Cave 134 Comment
  RSA651784  Hordeum leporinum Bob Edwards 1948-5-14 s.n. Orange Found on vacant lot in Orange. 59 Comment
  UCR207598  Hordeum marinum subsp. gussoneanum O. F. Clarke 2004-5-19 s.n. Orange South Coast, Fairview Park, Costa Mesa 24 Comment
  CAS-BOT-BC289364  Hordeum murinum subsp. glaucum Ira L. Wiggins 1966-3-1 20480 Orange Western edge of California State College at Fullerton Comment
  UCR37805  Horkelia cuneata subsp. cuneata Steve Boyd 1981-5-13 s.n. Orange South Coast, Pelican Hill, Irvine Ranch Property, San Joaquin Hills south of Corona del Mar 218 Comment
  RSA792565  Hornungia procumbens Justin M. Wood 2011-2-28 3272 Orange South Coast: Santa Ana River, marsh just upstream of Pacific Coast Highway. Plants collected throughout the marsh and along the adjacent bike path. 0 Comment
  RSA525  Hydrocotyle umbellata J. T. Howell 1927-7-19 441 Orange Santa Ana River bottom, Rancho Santa Ana [Botanic Garden] 152 Comment
  RSA769302  Hypericum canariense R. E. Riefner Jr. 2010-6-9 10 -52 Orange City of San Juan Capistrano, along McKraken View Trail at San Juan Creek Rd., E of I-5 Freeway. 51 Comment
  RSA16349  Hypericum formosum var. scouleri P. C. Everett 1935-6-18 7184 Orange Santa Ana Mts., Main Divide Motorway to Santiago Pk., 1 mi. from Ortega Highway. 732 Comment
  IRVC814  Hypochaeris glabra C. Thompson 1965-4-12 Orange Laguna Hills Comment
  UCSB47577  Hypochaeris glabra Roberts, Jr., Fred 1980-4-3 Orange San Juan Canyon, Hwy. 74, entrance to lower San Juan Picnic Grounds, Santa Ana Mtns. 409 Comment
  IRVC992  Ipomoea purpurea B. Van Gorden 1965-3-8 Orange 2212 Meyer Place. Costa Mesa Comment
  UCR246472  Ipomoea purpurea R. E. Riefner Jr. 2012-9-7 12-504 Orange South Coast, city of Dana Point, Dana Point Harbor Drive, vicinity of Island Way 19 Comment
  POM294117  Isocoma menziesii var. decumbens Lyman Benson 1946-5-13 12097 Orange Corona del Mar, Pacfic Ocean drainage area 50 Comment
  SD124238  Isocoma menziesii var. menziesii C. W. Tilforth 1976-10-21 1225 Orange Slopes above Santa Ana River Canyon on Rancho Santa Ana Comment
  UC1543132  Isocoma menziesii var. sedoides Donald G. Nelson 1935-6-27 332 Orange beaches s Corona del Mar (s of mouth of Newport Bay, on bluffs facing ocean) Comment
  UCR223956  Isocoma menziesii var. sedoides Fred M. Roberts 2008-10-9 7123 Orange South Coast, Dana Point, Dana Point Headlands, CNLM Preserve, base of cliff adjacent to Dana Strands Beach, 0.8 km west northwest of Marine Institute, Dana Point Harbor 3 Comment
  POM294112  Isocoma menziesii var. vernonioides Lyman Benson 1946-7-8 12105 Orange Corona del Mar. 15 Comment
  RSA573427  Isocoma menziesii var. vernonioides Steve Boyd, Tim Ross 1994-9-14 8348 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area of the Cleveland National Forest, Lucas Canyon trail at stream crossing in Aliso Canyon. 341 Comment
  SD136909  Isocoma menziesii var. vernonioides Steve Boyd, Tim Ross 1994-9-14 8344 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness area, Lucas Canyon trail at stream crossing in Aliso Canyon 341 Comment
  SD136910  Isocoma menziesii var. vernonioides Steve Boyd, Tim Ross 1994-9-14 8343 Orange Southern Santa Ana Mountains,San Mateo Canyon Area,Lucas Canyon trailhead at Forest Service Road 7S06 on ridge dividing Aliso and Verdugo Cany 509 Comment
  UC1424927  Isocoma menziesii var. vernonioides C. W. Tilforth 1975-9-6 1049 Orange ne shoreline of Upper Bay (above Coastal Salt Marsh); Newport Beach, Upper Bay Comment
  UC221420  Isocoma menziesii var. vernonioides F. M. Reed 1917-7-1 3918 Orange bluffs at Laguna Laguna Comment
  UCD133428  Isocoma menziesii var. vernonioides Lyman Benson 1946-7-8 12105 Orange Corona Del Mar. Comment
  RSA658217  Isomeris arborea T. A. Daubert 1991-5-26 664 Orange Tucker Wildlife Sanctuary, Modjeska Canyon, fire road. Comment
  RSA696234  Isomeris arborea Minor Warne 1934-5-10 s.n. Orange Fairview bluff near Talbert Comment
  UCR109619  Isomeris arborea R. D. Goeden, Don W. Ricker 1965-6-21 s.n. Orange Dana Point 61 Comment
  RSA695718  Isomeris arborea var. globosa Keith E. Hoffmaster 1927-4-5 s.n. Orange Near Newport, Santa Ana Mountains Comment
Read comments
Aug 27 2011
  UCR240104  Jaumea carnosa Dick Newell, Judy Booth 2012-9-26 292 Orange South Coast, Newport Beach, Back Bay Drive at the Salt Dike 3 Comment
  UCR66998  Jaumea carnosa A. C. Sanders 1990-10-6 10182 Orange South Coast, Newport Back Bay, SW side at North Star County Beach, SW end of the bay, c. 2 km inland from Hwy 1/ Pacific Coast Hwy 3 Comment
  POM122693  Jepsonia parryi Marcus E. Jones 1926-3-13 s.n. Orange Santa Ana Canyon. Comment
  RSA84405  Jepsonia parryi F. W. Peirson 1919-11-8 1941 Orange South of Arch Beach, near Laguna Beach Comment
  CAS-BOT-BC101920  Juglans californica Ira L. Wiggins 1966-5-11 20660 Orange Carbon Canyon, about 1 mile above its mouth Comment
  RSA0011055  Juglans californica D. E. Bramlet 2008-6-5 4291 Orange Santa Ana Mtns foothills: Tributary to Weir Cyn., 731 m N of the SCE Transmission Line & 229m west of Weir Canyon Road. 257 Comment
  RSA0011065  Juglans californica Lyman Benson 1947-4-27 12340 Orange Carbon Canyon. Mr. Range: Puente Hills; Drainage area: Pacific Slope. 244 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
  SD70810  Juglans californica var. californica Lucille Kempers 1955-3-19 252 Orange Flying Cow Ranch in Carbon Canyon 259 Comment
  CAS-BOT-BC334501  Juglans hindsii R. E. Riefner, Jr. 2010-9-8 10 -121 Orange City of Laguna Beach, Laguna Canyon, ca 0.15 mi S of El Toro Rd. on E side of Laguna Canyon Rd. 75 Comment
  UCR61558  Juncus Jeri Hirshberg 1988-7-13 s.n. Orange Santa Ana Mtns., Lower Blind Canyon, 1-2 mi above Santiago Reservoir Comment
  UCSB36209  Juncus acutus subsp. leopoldii Ferren, Wayne; Whitmore, S.; Millett, B. 1980-8-27 Orange Newport Backbay just W of Backbay Drive; ca. 3 km V NE of Rt. 1; Newport Beach Comment
  RSA699734  Juncus acutus var. sphaerocarpus Keith E. Hoffmaster 1933-10-8 s.n. Orange Near Newport Bay. Comment
  UCR193035  Juncus balticus A. C. Sanders, Fred M. Roberts 2008-6-17 35492 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, West Loma Ridge Spur Road c. 0.8 mi SW of Irvine Lake and 0.9 mi. SE of Sheriff's Training Facility, just east of Hwy 241 280 Comment
  RSA748262  Juncus balticus subsp. ater A. C. Sanders, Mitch Provance 2008-5-20 35395 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
  RSA731916  Juncus balticus var. balticus Fred M. Roberts, Sandy Leatherman 2007-11-27 6663 Orange Anaheim: Santa Ana River, Santa Ana Canyon, just west of Horseshoe Bend on S side of E La Palma Ave., about 0.3km E Weir Cyn. Rd. bridge. 100 Comment
  UCSB48092  Juncus bufonius var. congestus Roberts, Fred 1981-4-12 Orange Santa Ana Mtns; San Juan Cyn; Hwy 74; 1.3km by road E San Juan Guard Station; 0.9 km SE Juan Rancho SM 295 Comment
  RSA105  Juncus mexicanus J. T. Howell 1927-6-21 187 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  SD72862  Juncus oxymeris F. R. Fosberg 1931-6-21 S 5152 Orange Silverado Canyon, Santa Ana Mountains, edge of stream. Comment
  RSA0027429  Juncus patens Fred M. Roberts 2013-7-18 7662 Orange San Joaquin Hills: Newport Beach, Buck Gully, along Buck Gully Trail, about 0.7 km from the north terminus of Poppy Street and 1.8 km WNW summit of Pelican Hill. 52 Comment
  UCR193024  Juncus patens A. C. Sanders, Mitch Provance 2008-5-20 35399 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, mouth of Hangman Tree Canyon just above confluence with Santiago Creek Canyon, c. 1/2 mile below Modjeska Canyon confluence 366 Comment
  POM1601  Juncus rugulosus C. B. Bradshaw 1902-7-19 s.n. Orange Santiago Canyon. Comment
  CAS-BOT-BC227115  Juncus textilis A. C. Sanders; Fred M. Roberts 2008-7-16 35855 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago, upper Hangman's Tree Canyon 395 Comment
  SEINET3881136  Juncus textilis A. C. Sanders, Fred M. Roberts 2008-7-16 35855 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago, upper Hangmans Tree Canyon (El Toro 7.5').; 0 395 Comment
  JEPS67112  Juncus torreyi S. B. Parish and W. F. Parish Oct 1882 1593 Orange Orange Comment
Read comments
Jul 18 2010
  UC520018  Juncus xiphioides Joseph Andorfer Ewan 1932-7-9 7484 Orange 4 mi below Rincon (Prado); Santa Ana River Comment
  POM6386  Keckiella antirrhinoides Philip A. Munz, Street, Williams 1919-5-3 2621 Orange Santa Ana River Canyon. Comment
  UC1063331  Keckiella antirrhinoides R. St. John 1931-3-31 201 Orange Mouth of Silverado Canyon; Corona Quad. 365 Comment
  UC1280772  Keckiella antirrhinoides H. E. McMinn 1935-6-22 3920 Orange e base of n end Santa Ana Mountains Comment
  NY786705  Keckiella antirrhinoides var. antirrhinoides S. McCoy 1932-6-3 233 Orange Near Brea Comment
  RSA293306  Keckiella cordifolia D. C. Michener 1980-7-14 3704 Orange Starr Audubon Sanctuary. Riparian woodland margin in Crow Creek ca. 1.3 mi. north of jct along Bell Canyon. 250 Comment
  RSA401707A  Keckiella cordifolia M. B. Dunkle 1934-6-18 3996 Orange San Juan Canyon 305 Comment
  RSA659638  Keckiella cordifolia T. A. Daubert 1991-5-26 676 Orange Tucker Wildlife Sanctuary, Modjeska Canyon, turn around island Comment
  SD245486  Keckiella cordifolia Robert Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49620 Orange Santa Ana Mountains: about 1 mile above San Juan Fire Station. Comment
  RSA761792  Keckiella ternata subsp. ternata Robert Allen 2003-6-22 12294 Orange Northeastern flank of Santiago Peak, along North Main Divide Road. 1506 Comment
  UCR150570  Kickxia elatine Scott D. White, Matt Carlton 2003-11-20 9866 Orange South Coastal Plain, Santa Ana Mtn foothills. San Juan Creek in San Juan Capistrano 24 Comment
  RSA703848  Koeleria macrantha D. E. Bramlet 2003-3-20 3352 A Orange Donna O'Neill Reserve. NE corner of the reserve 150m west of Cristianitos Rd. and 1.77km north of the E-W access road. Comment
  UCR191423  Koeleria macrantha A. C. Sanders, Fred M. Roberts 2008-4-8 34773 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
  UCR209381  Koeleria macrantha Fred M. Roberts, Linda Farley 2008-3-28 6824 Orange Santa Ana Mountains, Upper Weir Canyon, Irvine Ranch Conservancy, east fork along ridge just west of SR 241, 3.4 km east of Robber's Peak 437 Comment
  RSA725959  Koelreuteria bipinnata T. B. Salvato, Katie Kurtz, Mitch Provance 2006-10-15 1903 Orange South Coast: Irvine, San Diego Creek flood control channel, between Campus Drive and Michelson Drive. 6 Comment
  RSA894  Lactuca serriola J. T. Howell 1927-7-27 496 Orange Near ranch, Rancho Santa Ana 152 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
  CAS-BOT-BC516763  Lagunaria patersonia R. E. Riefner, Jr. 2011-6-29 11 -76 Orange City of Laguna Beach, general area of Shaw's Cove, vicinity of Cliff Dr. and Fairview St. 1 Comment
  UC1132172  Lamarckia aurea A. Lewis 1934-4-1 377 Orange Coal Mine 304 Comment
  UCR154272  Lamarckia aurea Mark A. Elvin 2004-5-2 3427 Orange Southern Coastal, Irvine: San Joaquin Freshwater Marsh, near Campus and University Drives; 1.7 km (air) NNW UC Irvine campus center 3 Comment
  UCR192490  Lamarckia aurea A. C. Sanders, Fred M. Roberts 2008-3-25 34557 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  UCR99880  Lamarckia aurea Scott D. White 1993-3-5 1130 Orange Tustin. Marine Air Corps Air Station: SE of Red Hill Ave and NE of Barranca 15 Comment
  UCSB49039  Lamium amplexicaule Martincich, M. 1980-3-12 Orange On a cow trail on Franklin Ranch, Goleta 137 Comment
  HSC5147  Lasthenia californica S. M. Clapp 1966-4-10 46 Orange 10 mi. into Black Star Canyon, near the summit 244 Comment
  RSA92925  Lasthenia californica F. W. Peirson 1925-4-11 5746 Orange 5 miles south of Laguna Beach. Comment
  UCR158155  Lasthenia glabrata Adrian Wolf 1998-5-27 324 Orange South Coast, Newport Slough, south of oil fields, between Huntington Beach, Costa Mesa and Newport Beach, just south of the channelized mouth of the Santa Ana River 2 Comment
  CAS-BOT-BC329172  Lasthenia glabrata subsp. coulteri Carl B. Wolf 1932-3-8 2691 Orange Sunset Beach, near southern limits of city 1 Comment
  CAS-BOT-BC329173  Lasthenia glabrata subsp. coulteri Carl B. Wolf 1935-3-24 6295 Orange 1 mi N of Buena Park (valley to W of W. Coyote Hills) 53 Comment
  UCSB69273  Lasthenia glabrata subsp. glabrata Sanders, A.; Roberts, Fred 2008-3-25 Orange Peninsular Range; Santa Ana Mtns.; saddle on ridge near head of Weid Canyon, 5.3 miles ENE of Villa Park, 3.1 mi. N of (Santiago Reservoir) Irvine Lake (Black Star Canyon 7.5' Q.; +/-1000m.) 405 Comment
  RSA0010307  Lasthenia gracilis Fred M. Roberts 2008-3-12 6732 Orange Dana Point: Dana Point Headlands CNLM Preserve, western side, c.a. 0.8 km W Marine Institute (Dana Point Harbor). 50 Comment
  SEINET6073121  Lathyrus laetiflorus Unknown 1988-1-12 5117 Orange Cleveland National Forest, San Juan Creek at Lower San Juan Campground. Comment
  RSA405728  Lathyrus vestitus subsp. alefeldii H. L. Bauer 1929-4-20 s.n. Orange Trabuco Canon. Comment
  CHSC857  Lathyrus vestitus var. vestitus S. Westerberg 1938-5-1 Orange San Juan canyon. Comment
  SBBG12352  Lathyrus vestitus var. vestitus E. R. Blakley 1957-4-26 2070 Orange State Hwy 140, 5 mi E of Mission San Juan Capistrano 121 Comment
  RSA697123  Layia platyglossa Minor Warne 1934-4-21 s.n. Orange Santiago Canyon. Comment
  UC718582  Layia platyglossa P. C. Everett 1935-4-15 6462 Orange 8/10 mi e of Atwood 106 Comment
  IRVC18939  Layia platyglossa T. L. Ackerman 1982-4-24 82 -260 Orange S of Live Oak Canyon Rd., on dirt trail from road to Methodist Church; disturbed chaparral; Santa Ana Mountains Comment
  CDA25745  Leonurus sibiricus O. F. Clarke, A. C. Sanders 2008-2-19 s.n. Orange South Coast; Fullerton; weeds at California State University Fullerton Arboretum. Comment
  RSA12900  Lepechinia cardiophylla E. R. Johnson, Percy C. Everett 1935-1-14 s.n. Orange Open firebreak on slopes of Sierra Peak, along road to Claymine Canyon 610 Comment
  UC1608281  Lepechinia cardiophylla Steve Boyd and Kyle Boyd 1992-7-9 7653 Orange along main crest of range n Pleasants Peak (s of Oak Flat (aka Oat Flat), 3.5 mi s of junction of Main Divide and Skyline Rds.); Northern Santa Ana Mountains Comment
  RSA716659  Lepidium didymum Fred M. Roberts 2005-5-13 6188 Orange San Juan Capistrano; Ortega Ranch Business Center site, between Rancho Viejo Rd. and I-5 freeway adjacent to Horno Creek; 0.6km NE Mission San Juan Capistrano. 54 Comment
  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
  RSA679088  Lepidium latifolium Fred M. Roberts 2003-7-24 5971 Orange San Juan Capistrono: San Juan Creek, c.a. 0.1 km NE La Novia Bridge. Along creek on cobbly sand of wash in open southern willow scrub and mulefat scrub., 33,30 15 N, 117, 38 44 27 Comment
  CAS-BOT-BC12522  Lepidium nitidum Carl B. Wolf 1932-3-8 2683 Orange 0.5 mile north of Corona Del Mar borders of Newport Bay. 7 Comment
  UCR191339  Lepidium nitidum A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34648 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
  UCR191444  Lepidium nitidum A. C. Sanders, Fred M. Roberts 2008-4-8 34726 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, head of Hicks Canyon, S of Santiago Reservoir 351 Comment
  IRVC1108  Lepidium nitidum B. Mawdsley 1965-3-24 Orange Corona del Mar, Narcissus and 5th. Newport Beach Comment
  UCR271004  Lepidium oblongum Mitch Provance, Travis Kegel 2016-4-8 416- 59 Orange Coastal Regions of Southern California, Newport Beach, W of the W end of 16th Street, and E of the Banning Oil Fields 32 Comment
  CAS-BOT-BC329358  Lepidospartum squamatum Helen D. Geis 1902-1-1 s.n. Orange Santiago Canon Comment
  RSA899  Lepidospartum squamatum J. T. Howell 1927-7-28 505 Orange West side, Rancho Santa Ana. 152 Comment
  UCR240072  Lepidospartum squamatum Dick Newell, Judy Booth 2012-9-4 285 Orange Peninsular Range; Santa Ana Mtns., city of Irvine, Fremont Canyon mouth [Irvine Lake Dam Spillway] at Metropolitan Water District Road, 0.3 mi due north of Santiago Dam 205 Comment
  UCR240094  Lepidospartum squamatum Dick Newell, Judy Booth 2012-11-11 309 Orange Peninsular Range; Santa Ana Mtns., Irvine, just east of eastern edge of Irvine Regional Park, east of Peters Canyon Rd. 189 Comment
  UCR58731  Lepidospartum squamatum Reid Moran 1975-11-21 22741 Orange Santa Ana Mtns., bottom of lower Trabuco Canyon Comment
  RSA710596  Leptochloa fusca subsp. uninervia Mark Elvin 2004-5-2 3420 Orange Southern Coastal, Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7 km (air) NNW of UC Irvine Campus center. 3 Comment
  RSA698318  Leptodactylon californicum Anonymous s.n. Orange Siverado. 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
  POM49705  Leptosiphon liniflorus L. R. Abrams 1901-06 1797 Orange Trabuco Canyon Comment
  RSA587876  Leptosiphon liniflorus Fred M. Roberts 1990-5-9 4625 Orange Rancho Mission Viejo; Christianitos Canyon, TRW Lease Holding, 4.3 km NE Clemente Survey Marker. 91 Comment
  RSA550596  Leptosiphon liniflorus Fred M. Roberts 1989-4-26 4318 Orange Mouth of Blind Caynon, 9.4 k SW Sierra Peak, 1.0km N Irvine lake spillway. 219 Comment
  RSA764445  Leptosiphon parviflorus Doris Bowers 1971-4-19 1698 Orange Black Star Canyon Indian Site 762 Comment
  RSA160419  Lessingia glandulifera var. glandulifera J. D. Olmsted 1959-9-22 984 Orange Along industrial waste waters bank from 3 miles clay works just N of Hwy 8-9 miles WSW of Corona, N of Santa Ana Mts. to Santa Ana River 140 Comment
  UCR140884  Leucojum aestivum Robert DeRuff 1988-2-20 352 Orange Southern Coast, Costa Mesa, Irvine Blvd. and 23rd Street 9 Comment
  RSA172340  Leymus condensatus R. F. Thorne 1963-7-26 32843 Orange Tin Mine Canyon above Beek's Spring, Trabuco District, Santa Ana Mountains, Cleveland National Forest 762 Comment
  RSA734905  Leymus condensatus A. C. Sanders 2008-5-28 35433 Orange Lomas de Santiago, Bee Flat at mouth of Limestone Canyon 264 Comment
  RSA108341  Leymus triticoides Frank W. Gould 1943-4-12 2101 Orange About 7 miles northeast of Anaheim, on sand railroad siding. Comment
  CAS-BOT-BC130581  Lilium humboldtii John Thomas Howell 1927-7-3 2645 Orange Claymine Canyon, n. Santa Ana Mts. 304 Comment
  UC1873114  Limonium R. E. Riefner Jr. 2006-8-11 06 -386 Orange Upper Newport Bay. E of Back Bay-Bayside Dr., flats along Big Canyon Creek 5 Comment
  UCR12584  Limonium californicum J. S. Davis 1972-5-6 720506- 18 Orange South Coast, Newport Beach, 100 yards from the corner of San Joaquin Hills Road and Back Bay Road. 0 Comment
  RSA0056339  Limonium californicum James R. Shevock 1972-9-27 2284 Orange Newport back bay. 3 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
  UCR6061  Limonium perezii Sue Freeman 1966-3-27 s.n. Orange South Coast, Laguna, off end of Wave Street 6 Comment
  RSA658207  Limonium perezii T. A. Daubert 1991-5-19 672 Orange Tucker Wildlife Sanctuary, Modjeska Canyon nature trail. 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
  CHSC13481  Linanthus californicus T. N. Casale 1974-4-11 5 Orange On side of road, ca. 7.3 mi ne of the Mission San Juan Capistrano on Hwy 74. 243 Comment
  RSA2111  Linanthus californicus C. B. Wolf 1931-3-6 1831 Orange 1.5 miles below Trabuco Oaks along Trabuco Canyon Road 305 Comment
  LA103892  Linanthus californicus E. B. Higgins; 1948-3-21 sn Orange San Juan Camp Comment
  RSA618  Linanthus californicus subsp. glandulosus J. T. Howell 1927-6-26 229 Orange Claymine Canyon, near Sierra Peak. 457 Comment
  RSA734640  Linanthus dianthiflorus A. C. Sanders, Fred M. Roberts 2008-3-25 34559 Orange Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  SD27975  Linanthus dianthiflorus Carl B. Wolf 1932-3-8 2675 Orange I(c) mile No. of Corona Del Mar. Borders of Newport Bay 7 Comment
  UCR191782  Linanthus dianthiflorus A. C. Sanders, Fred M. Roberts 2008-3-25 34559 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  RSA698396  Linanthus dianthiflorus G. Jentges 1932-4-1 s.n. Orange Near Dam above Truine Park Santiago Canyon. Comment
  UCR151030  Linanthus parviflorus Scott D. White 1997-5-6 5036 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
  IRVC16249  Lobelia dunnii var. serrata Karlin G. Marsh 1977-9-23 Orange Holy Jim Canyon, Holy Jim Falls. Santa Ana Mountains Comment
  IRVC298  Lobelia dunnii var. serrata R. Acevedo 1965-4-3 Orange east bluff. Newport Beach Comment
  IRVC1116  Lobularia maritima C. Duncan 1965-4-4 Orange Newport Beach Comment
  RSA733823  Lobularia maritima Keith E. Hoffmaster 1928-3-5 394 -442 Orange Santa Ana Mountains Comment
  UC537116  Lolium multiflorum Lawrence M. Booth 1932-5-15 1203 Orange Newport Bay Costa Mesa; Newport Bay Comment
  RSA6058  Lolium perenne C. B. Wolf 1932-6-13 3714 Orange Fullerton, Rose Drive 53 Comment
  CAS-BOT-BC271069  Lolium temulentum P. A. Munz 1918-5-4 2202 Orange Laguna Comment
  UC537108  Lolium temulentum Lawrence M. Booth 1932-5-19 1078 Orange Newport Bay Comment
  RSA0011619  Lolium temulentum Jeanne Paxton 1934-4-12 s.n. Orange Marshes back of Santa Ana Country Club. Comment
  SEINET12118936  Lomatium utriculatum J. F. Bright, Wyman, C. 1933-1 8100 Orange in Santa Ana foothills Comment
  RSA696519  Lonicera subspicata Minor Warne 1934-4-28 s.n. Orange Ladd Canyon-Santa Ana Mts. PR8. Comment
  UCR228771  Lonicera subspicata Dick Newell, Don Millar 2011-7-19 212 Orange Peninsular Range; Santa Ana Mtns., foothills above Black Star Canyon Rd. (SCE access road), 3.15 mi. ENE (83 deg. ) of Irvine Lake dam 494 Comment
  RSA5337  Lonicera subspicata var. denudata B. D. Stark 1933-1-4 4489 Orange Ridge above Claymine Canyon. No. end of Santa Ana Mts. 213 Comment
  UCSB52454  Lonicera subspicata var. denudata Roberts, Fred; Allen, R. 1982-7-4 Orange Chino Hills; Carbon Canyon, Carbon Canyon Rd., 0.3 km. by road SW county line; 2.5 km. NW Gilman Peak 260 Comment
  RSA0023266  Lonicera subspicata var. johnstonii R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49781 Orange Santa Ana Mountains: Trabuco Canyon. Comment
  IRVC15129  Lotus heermannii var. heermannii A. S. Boughey 1968-7-9 383 Orange Santa Ana mtns: upper Santiago Canyon. Peninsular Ranges Comment
  UC1607985  Lotus purshianus var. purshianus Donald G. Nelson 1935-7-5 345 Orange E. Elm St. Brea (along roadside in dry hayfield) Comment
  RSA220984  Lotus salsuginosus E. W. Lathrop 1966-3-23 6103 Orange 4 miles northeast of Lake Irvine, Black Star Canyon, Cleveland National Forest, Trabuco District. 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
  UCR175057  Lotus salsuginosus Vanessa Lee 2005-4-24 s.n. Orange South Coast, Crystal Cove, Laguna Beach, above Pacific Coast Highway 61 Comment
  UCR191348  Lotus salsuginosus A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34631 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
  IRVC19937  Lotus salsuginosus subsp. salsuginosus Gordon A. Marsh, K. G. Marsh 1983-3-2 Orange burn area on ridge between Coal and Gypsum Canyons, Santa Ana Mountains Comment
  IRVC11705  Lotus salsuginosus subsp. salsuginosus R. Yarnell 1966-3-16 62 Orange near Orange County Refuse Dump [Olinda Landfill?]. unspecified locations Comment
  POM276672  Lotus scoparius Lyman Benson 1932-3-26 3200 Orange Dana Point. 60 Comment
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Apr 29 2008
  RSA708446  Lotus scoparius Mark Elvin 2004-5-2 3406 Orange Southern Coastal, Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7 km (air) NNW of UC Irvine Campus center. 3 Comment
  UCR223427  Lotus scoparius subsp. scoparius Dick Newell, Don Millar 2011-2-15 059 Orange South Coast, San Joaquin Hills, Laguna Wilderness Park, along Stagecoach Trail 131 Comment
  RSA659547  Lotus strigosus P. Shirokawa 1998-5-7 15 Orange Cleveland National Forest- Trabuco Ranger District, 0.3 miles from Ortega Highway (State Highway 74) on North Main Divide Road. 808 Comment
  UC1543223  Lotus strigosus Donald G. Nelson 1935-4-6 255 Orange e of San Juan Capistrano (deep canyon 200-300 ft below main highway, about 4 mi from summit); San Juan Canyon Comment
  UC864909  Lotus strigosus I. W. Clokey 1932-3-1 5328 Orange Laguna Beach Comment
  UCR168249  Lotus strigosus M. B. Dunkle 1933-3-5 3087 Orange Southern Coast, San Juan Canyon 305 Comment
  UCR220080  Lotus strigosus Dick Newell, Don Millar 2010-3-2 007 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lakeview Rd. 0.3 mi. east of Irvine Lake dam 305 Comment
  UCR223433  Lotus strigosus Dick Newell, Don Millar 2011-2-8 053 Orange Peninsular Range; Santa Ana Mtns., MWD road overlooking Boy Scout Camp, just east of outdoor education property, 1.5 mi. NW (312 deg. ) of Irvine Lake dam 257 Comment
  UCR4074  Lotus strigosus Carole Sims 1965-3-25 s.n. Orange Santa Ana River Canyon, hillside at 24000 Santa Ana Canyon Road (= State Hwy 91), 150 yards north of hwy; also called Gypsum Canyon. West side of gravel company's trucking road. 221 Comment
  IRVC14756  Lotus strigosus var. hirtellus A. S. Boughey 1968-4-23 217 Orange Black Star Canyon, .5mi below Hidden Ranch; area burned this winter. Santa Ana Mountains Comment
  IRVC22208  Lotus strigosus var. strigosus Fred M. Roberts, Gordon Marsh 1985-4-3 1623 Orange Irvine: Irvine Ranch, just east of MacArthur, 1.4km W UCI campus center. Southern Coastal 30 Comment
  RSA406319  Lotus strigosus var. strigosus M. B. Dunkle 1934-6-18 3971 Orange Upper San Juan Canyon. 610 Comment
  RSA562727  Lotus unifoliolatus Steve Boyd, T. S. Ross 1992-5-20 7463 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of the wilderness in Lucas Canyon along canyon floor from crossing Lucas Canyon Trail, upstream 1/4 mile to spur trail leading to old mining habitations in side canyon. 305 Comment
  CDA1047  Ludwigia peploides D. G. Kelch 2006-12-9 6 .561 Orange Irvine. University Dr along tidal creek just E of I-73. Comment
  RSA21063  Ludwigia peploides subsp. peploides Ramon Valverde 1938-8-4 3229 Orange Rancho Santa Ana, Santa Ana Canyon. 122 Comment
  RSA184076  Lupinus I. L. Wiggins 1966-3-31 20574 Orange Grazed field along south side of Brea Olinda Boulevard, near Carolina Avenue. Comment
  CAS-BOT-BC196229  Lupinus albifrons var. eminens Marcus E. Jones 1926-4-28 s.n. Orange Gaviota Canon [Canyon] Comment
  RSA699292  Lupinus bicolor Jeanne Paxton 1934-4-30 s.n. Orange Orange County Dam Comment
  POM9122  Lupinus bicolor subsp. microphyllus Philip A. Munz, R. D. Harwood 1920-4-24 3768 Orange Sierra [Freemont] Canyon, Santa Ana Mountains. 366 Comment
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Sep 17 2011
  RSA184093  Lupinus bicolor subsp. umbellatus I. L. Wiggins 1966-3-22 20546 Orange Silverado Canyon about 5 miles above Ranger Station, Cleveland National Forest. Comment
  RSA542581  Lupinus bicolor subsp. umbellatus Fred M. Roberts 1988-4-10 3904 Orange Lomas De Santiago: Loma Ridge, Upper Limestone Canyon, c.a. 3.2 kilometer NNW Bolero Lookout. 347 Comment
  IRVC2286  Lupinus bicolor subsp. umbellatus D. Ibbetson 1965-1 HS 0421 Orange San Juan Capistrano Southern Coastal Comment
  RSA543961  Lupinus concinnus subsp. concinnus Steve D. Boyd 1991-5-9 6192 Orange Crest of range at Oak Flat, SE of Sierra Peak, just West of Riverside County Line. 793 Comment
  RSA442342  Lupinus densiflorus var. lacteus Agnes Lee Freeman 1942-4-24 s.n. Orange Santa Ana Rancho. Comment
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Feb 16 2013
  RSA3253  Lupinus excubitus var. hallii B. D. Stark 1931-4-18 1939 Orange mouth of Gypsum Canyon, Santa Ana Mts. Comment
  RSA798188  Lupinus excubitus var. hallii Robert F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49597 Orange Santa Ana Mountains: rocky ravine tributary to San Juan Canyon, along Ortega Highway (74) about 2 miles above San Juan Fire Station Comment
  UC527220  Lupinus excubitus var. hallii B. D. Stark 1931-4-18 1939 Orange Santa Ana Canyon mouth of Gypsum Canyon; n base of Santa Ana Mts., Santa Ana Canyon 152 Comment
  RSA91198  Lupinus excubitus var. hallii F. W. Peirson 1925-4-10 5740 Orange In Silverado Canyon. 610 Comment
  JEPS65253  Lupinus hirsutissimus Alice King 1907-1 Orange Santa Ana Comment
  UC484238  Lupinus hirsutissimus C. B. Wolf 1931-3-6 1843 Orange 1/2 mi above Trabuco Oaks (Trabuco Canyon, w slope Santa Ana Mts.); w slope Santa Ana Mts., Trabuco Canyon, above Trabuco Oaks 457 Comment
  UCR240077  Lupinus latifolius Dick Newell, Don Millar 2012-5-22 255 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Hangmans Tree Rd. at Santiago Creek 350 Comment
  UC718433  Lupinus latifolius var. parishii P. C. Everett 1935-6-19 7229 Orange Main Divide Motorway Bear Spring (Bear Spring); Santa Ana Mts., Bear Spring 1219 Comment
  POM24880  Lupinus longifolius F. M. Reed 1925-5-14 4991 Orange Aliso Canon. Comment
  RSA4865  Lupinus longifolius E. R. Johnson 1932-4-15 2956 Orange Rancho Santa Ana, 1mile NWof Roundtop (section 16) 457 Comment
  UCR228793  Lupinus longifolius Dick Newell, Don Millar 2011-5-3 145 Orange Coastal Plains, San Joaquin Hills, Laguna Canyon Wilderness Park, Willow Trail 160 Comment
  IRVC8673  Lupinus sparsiflorus Charles W. Sexton 1965-3-27 s.n. Orange Ortega Highway out of San Juan Capistrano Southern Coastal Comment
  RSA722339  Lupinus sparsiflorus R. H. McArthur 1934-3-25 s.n. Orange Field W. of Irvine Park. Comment
  RSA649056  Lupinus sparsiflorus subsp. sparsiflorus D. E. Bramlet 2000-4-21 2991 Orange Ridge 488m northeast (above) the MWD access road. the site is 1.3 km west of Blind Canyon and 640m north of Irvine Park. 268 Comment
  IRVC20366  Lupinus sparsiflorus subsp. sparsiflorus Fred M. Roberts 1983-3-16 932 Orange Laguna Beach: Sycamore Hills, central ridge, 1.1km NNE jct. El Toro and Laguna Canyon Rds.; 5.4km [ESE] Signal Peak. Southern Coastal 156 Comment
  RSA4839  Lupinus succulentus James Snow 1932-1 s.n. Orange Bryant Ranch, near Long Beach. Comment
  RSA749484  Lupinus succulentus Fred M. Roberts 2008-3-25 6792 Orange Loma Ridge: Upper Hicks Cyn. near Haul Road, c.a. 4.4 km by road from Portola Pkwy. and 3.2 km ENE Rattlesnake Cyn. Reservoir. 269 Comment
  RSA263661  Lupinus succulentus E. W. Lathrop 1966-3-23 6106 Orange 4 miles northeast of Lake Irvine, Black Star Canyon, Cleveland National Forest, Trabuca District. Comment
  IRVC2357  Lupinus truncatus A. S. Boughey 1965-6-15 149 Orange Ortega highway; ca. 1.0 mile E of San Juan Guard Station. Santa Ana Mountains Comment
  SBBG47485  Lupinus truncatus M. B. Dunkle 1935-3-3 4346 Orange San Juan Cyn 457 Comment
  UCR98121  Lupinus truncatus George K. Helmkamp, E. A. Helmkamp 1997-4-24 1653 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
  SD155417  Lycium brevipes var. brevipes Craig Reiser 2001-3-21 Orange San Clemente, south of the intersection of Calafia and Ola Vista. Comment
  UCR274870  Lycium brevipes var. brevipes R. E. Riefner Jr. 2012-1-16 12- 7 Orange South Coast, city of Newport Beach, Corona Del Mar, Buck Gully, near Little Corona Beach, vicinity of Poppy Ave. and Ocean Blvd., slope adjacent to restroom facility 15 Comment
  UCR251743  Lycium brevipes var. hassei R. E. Riefner Jr. 2014-4-12 14- 77 Orange South Coast, City of San Clemente, San Clemente State Beach, SSW c. 100 m from the intersection of Ave. Califia and South Ola Vista Rd. 40 Comment
  RSA656  Lycopus americanus J. T. Howell 1927-9-24 753 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
  UCSB48023  Lythrum hyssopifolia Roberts, Fred 1980-7-1 Orange Irvine: San Diego Creek, 0.2km NE Interstate 5: 2.0km WSW Bench Mark 343 85 Comment
  RSA638971  Madia gracilis Valerie L. Soza, LeRoy Gross 1999-6-8 496 Orange Santiago and Modjeska Canyons, above Tucker Wildlife Sanctuary, above the town of Modjeska 518 Comment
  UC185712 Image available Malacothamnus densiflorus J. C. Nevin Orange San Juan Capistrano Comment
  RSA433310  Malacothamnus fasciculatus M. B. Dunkle 1933-5-30 3581 Orange Santa Ana Canyon Comment
  LA41778  Malacothamnus fasciculatus var. fasciculatus Louis C. Wheeler; 1932-7-9 941 Orange Santa Ana River 5 mi. below Prado 152 Comment
  RSA789584  Malacothrix saxatilis var. tenuifolia R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49656 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. Comment
  UC68974  Malacothrix saxatilis var. tenuifolia H. M. Hall July, 1905 6728 Orange Santa Ana Canyon 121 Comment
  CAS-BOT-BC347889  Malacothrix saxatilis var. tenuifolia Philip A. Munz 1950-8-5 15478 Orange Rancho Santa Ana Botanic Garden, on Santa Ana River 198 Comment
  RSA678507  Malephora crocea Valerie Soza, Kevin B. Clark, LeRoy Gross, Will Miller, Fred Roberts, Gary D. Wallace 2001-4-4 1106 Orange Seal Beach National Wildlife Refuge: Seal Beach U. S. Naval Weapons Station, across access road from Nature Center (Bldg 226). 3 Comment
  IRVC23145  Malosma laurina Fred M. Roberts 1985-7-11 2027 Orange San Joaquin Hills: Laguna Canyon, Laguna Canyon Road near Laguna Lakes, 5.0km ENE Signal Peak. southern coastal 112 Comment
  RSA657743  Malva parviflora Ken Greby 1985-4-18 22 Orange alongside Laguna Canyon Rd. approx. 1.5 km. NE from El Toro Rd. 46 Comment
  RSA716091  Malvaviscus arboreus Fred M. Roberts 2006-7-27 6394 Orange San Joaquin Hills: Laguna Beach, Temple Hill, 731 Nyes Place, 1.0km NNE Golf Island. 174 Comment
  POM12444  Malvella leprosa P. A. Munz 1922-9-2 6356 Orange Ponds in Laguna Canyon. 46 Comment
  RSA627789  Malvella leprosa Scott D. White 1998-6-26 6779 Orange South Coast: Univ. of Calif. Irvine Campus. Along mapped intermittent blueline stream just N of Bonita Cyn Dr. 61 Comment
  UC729853  Malvella leprosa Carl B. Wolf 1932-7-7 3855 Orange Bryant Ave., 0.1 mi. e. of Los Alamitos Blvd., 0.1 mi. e. of n.w. corner of SE 160 of Sect. 30 Bryant Ranch Comment
  RSA441225  Marah macrocarpa M. B. Dunkle 1931-2-19 3839 Orange San Juan Canyon Comment
  UCSB47970  Marah macrocarpa Roberts, Jr., Fred 1980-2-17 Orange Dana bluffs along Scenic Drive Road, northwest of and above Dana Point Harbor, Dana Point 58 Comment
  UCD41240  Marah macrocarpa Richard D. Luedke 1976-4-21 9 Orange Southeast Orange County. 12 miles east of El Toro on road S 19, Trabuco Canyon. Foothills of Santa Ana Mountains. Comment
  HSC14229  Marrubium vulgare C. L. Hitchcock, C. V. Muhlick 1964-3-17 23073 Orange 8 mi. E of Yorba Linda, Santa Ana Canyon. Comment
  JEPS63283  Marrubium vulgare Alice King April, 1908 Orange Santa Ana Comment
  RSA749354  Marrubium vulgare Fred M. Roberts 2008-4-15 6903 Orange Lomas de Santiago: Loma Ridge, Lower Hicks Cyn., east ridge, Conservation Trail, 1.6 km ESE Rattlesnake Reservoir dam and 2.7 km WSW Bee Peak, Irvine Ranch Conservancy. 172 Comment
  POM202026  Marrubium vulgare L. M. Booth 1932-5-24 1107 Orange West Side of Newport Lagoon. 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
  UCR48188  Matricaria matricarioides R. F. Thorne 1975-4-6 45566 Orange San Joaquin Marsh: near Irvine and coast Comment
  CAS-BOT-BC60300  Matthiola incana James R. Shevock 1974-2-26 3272 Orange Along California highway 1 (Pacific Coast Highway) at Bolsa Chica Beach. 3 Comment
  CDA6380  Mazus japonicus W. Humphrey 1973-7-19 Orange 7231 Irvine Boulevard, Santa Ana. 0 Comment
  UCSB52896  Meconella denticulata Roberts, Fred; Allen, R. 1983-4-10 Orange Santa Ana Mts; Upper Hot Springs Canyon; 3.1km WSW Falcon Group Camp; 2.5 km S Los Pinos Peak 790 Comment
  IRVC21997  Medicago polymorpha Fred M. Roberts, G. A. Marsh 1985-3-12 1520 Orange San Clemente; bluffs above El Camino Real, c.a. 1.1km NW Ave. Pico by road; 0.2km E Bench Mark 16 (sect. 32). Southern Coastal 31 Comment
  RSA678512  Medicago polymorpha Valerie L. Soza, Kevin B. Clark, LeRoy Gross, Will Miller, Fred Roberts, Gary D. Wallace 2001-4-4 1129 Orange Seal Beach U. S. Naval Weapons Station, southwestern edge of Seal Beach National Wildlife Refuge. 3 Comment
  RSA731980  Medicago polymorpha A. C. Sanders 2008-4-1 34657 Orange Peninsular Range: Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 250 Comment
  RSA746471  Medicago rigidula R. E. Riefner Jr. 2007-3-18 07 -150 Orange City of San Juan Capistrano, San Juan Creek Rd. at San Juan Creek Circle. USGS quad: San Juan Capistrano 24 Comment
  IRVC2390  Medicago sativa Laura Burns 1965-4-20 Orange Trabuco Canyon. Santa Ana Mountains Comment
  UCR208447  Medicago truncatula R. E. Riefner Jr. 2008-3-24 08- 64 Orange South Coast, Rancho Santa Margarita, Tijeras Canyon, north c. 0.5 mi from Meandering Trails Road on Antonio Parkway 221 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
  RSA542364  Melica imperfecta Fred M. Roberts, Kathy Keane 1988-4-25 4582 Orange Rancho Mission Viejo: Lower Canada Chiquita, 2.0 km SSE Medium Rancho Survey Mark 91 Comment
  RSA751312  Melica imperfecta A. C. Sanders, Fred M. Roberts 2008-5-6 35265 Orange Lomas de Santiago, slope SE of road junction along ridge road, near head of Agua Chinon Canyon, 2.4 miles north of El Toro 470 Comment
  POM50513  Melica imperfecta var. flexuosa Le Roy Abrams 1901-06 1689 Orange San Joaquin Hills Comment
  IRVC25157  Melilotus albus Fred M. Roberts 1986-9-3 3128 Orange adjacent to Anaheim, between Yorba Linda Regional Park and Imperial Hwy, Santa Ana River 88 Comment
  IRVC29824  Melilotus albus Artie Thomas, Mark A. Elvin 2006-9-23 609236 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
  RSA0015963  Melilotus albus Fred M. Roberts 2012-4-24 7530 Orange San Joaquin Hills: Buck Gully, above main trail, 2 km W Signal Peak and about 0.4 km S San Joaquin Hills Road. 155 Comment
  UCR100459  Melilotus albus B. G. Pitzer 1996-4-30 2766 Orange South Coast, Upper Newport Bay, Calif. Dept. Fish & Game Ecological Reserve, off (W of) Jamboree Road 6 Comment
  IRVC23315  Melilotus indicus Fred M. Roberts 1985-7-23 2067 Orange Irvine; San Diego Creek between E Yale Loop and Jeffrey Rd. Southern Coastal 35 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
  IRVC2426  Melilotus indicus Janet Bryant 1965-3-14 Orange Costa Mesa; Redlands Dr. and Santa Isabel. Southern Coastal Comment
  OBI7999  Melilotus indicus Kurt R. Neisess 1975-12-19 s.n. Orange Yorba Linda Comment
  UC537000  Melilotus indicus Lawrence M. Booth 1932-5-12 1018 Orange Newport Bay Comment
  RSA16494  Mentzelia dispersa Percy C. Everett 1935-6-18 7213 Orange Santa Ana Mts: Summit of Santiago Peak. 1732 Comment
  RSA0054910  Mentzelia lindleyi Katherine Gorath 1932-4-25 s.n. Orange Cor. Chapman + Cambridge. Comment
  JEPS42777  Mentzelia micrantha John Thomas Howell 1927-7-3 2642 Orange Santa Ana Mts., Claymine Canyon 304 Comment
  RSA539391  Mentzelia micrantha Fred M. Roberts, Carol A. Roberts 1988-6-9 4072 Orange Santa Ana Mountains: Main Divide Truck Trail, Modjeska Peak, west slope, 0.5 km NNW summit. 1417 Comment
  RSA594800  Mentzelia micrantha Fred M. Roberts, Sandy Leatherman, B. Leatherman 1994-4-24 4921 Orange Santa Ana Mountains: San Juan Canyon, south side of CA route 74, 1 kilometers NNW San Juan Survey Mark. 268 Comment
  UC1178607  Mentzelia micrantha Peter Kamb 1948-6-19 1109 Orange se Slope of Santiago Peak; Santa Ana Mts.; Orange County-Riverside County 1219 Comment
  SEINET3155128  Mesembryanthemum nodiflorum L. Abrams 1903-4-20 3280 Orange Near San Juan Comment
  UCR237912  Mesembryanthemum nodiflorum Mark A. Elvin 2003-2-2 2277 Orange South Coast, San Joaquin Marsh, UCI campus SSE of intersection of Jamboree Blvd. and Campus Dr. 2 Comment
  UCSB48069  Micranthes californica Roberts, Fred 1981-4-11 Orange Santa Ana Mtns.: San Juan Cyn, 2.3km ENE San Juan Guard Station; 0.4km W Bench Mark 1100, below Hwy 74 315 Comment
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Oct 28 2018
  RSA588774  Micropus californicus Fred M. Roberts, Carol A. Roberts, D. Bontrager 1990-4-28 4589 Orange Rancho Mission Viejo: Christianitos Canyon, 4.0 kilometers E Playa Survey Marker. 174 Comment
  RSA708226  Microseris douglasii subsp. platycarpha Fred M. Roberts, Robert L. Allen, Chris M. Barnhill, Carol A. Roberts 2005-4-10 6167 Orange Costa Mesa: Fairview Park, west of north end of Canyon Drive, c.a. 0.2km WNW Marison Special Education Center (Canyon Sch. on topos). 24 Comment
  UCR158095  Microseris douglasii subsp. platycarpha Adrian Wolf 1998-5-4 203 Orange South Coast, Coastal Hills, Aliso/Woods Canyon Regional Park, Aliso Canyon 0.75 km SW of Woods Canyon, 2.25 km NNW of Aliso Water Treatment Plant, north of access road 30 Comment
  UCR158096  Microseris douglasii subsp. platycarpha Adrian Wolf 1998-4-25 150 Orange South Coast, San Joaquin Hills, upper Coyote Canyon, 1 km NW of Signal peak, 2.5 km east of San Joaquin Reservoir 268 Comment
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Nov 21 2015
  RSA599650  Microseris douglasii subsp. platycarpha Fred M. Roberts 1995-4-21 4931 Orange Irvine: San Joaquin Hills, Quail Hill area near end of San Canyon Road, 2.5 km ENE French Hill. 52 Comment
  RSA651500  Microseris douglasii subsp. platycarpha D. E. Bramlet 2000-4-12 2972 Orange Fremont Canyon. The site is 183m south of the existing access road on the north ridge of the canyon. The site is 1.37km northeast of Santiago Creek. 336 Comment
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Feb 21 2007
  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
  UC1577076  Mimulus A. Lewis May 1934 407 Orange San Juan Canyon Cleveland National Forest, Elsinore Quadrangle Comment
  SEINET7067515  Mimulus aurantiacus A. G. Vestal 1947-6-12 s.n. Orange San Juan Canyon. Coordinate datum: NAD27. UTM Zone 11, 448887mE, 3712881mN. Comment
  UCR192087  Mimulus aurantiacus var. aurantiacus A. C. Sanders, Fred M. Roberts, Amber O'Neal, D. E. Bramlet 2008-5-9 35300 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along old dirt road, c. 1.25 mi. ESE of Walnut Cyn Reservoir 340 Comment
  UCR96610  Mimulus aurantiacus var. aurantiacus B. G. Pitzer 1996-4-30 2801 Orange San Joaquin Hills, Crystal Cove State Park, south of City of Irvine on State Hwy 1 (Pacific Coast Hwy) 15 Comment
  POM311167  Mimulus aurantiacus var. pubescens H. E. McMinn, M. Van Rensselaer 1945-6-9 1909 -H&I Orange North slope Laguna Canyon ca. 4 mi. east of Laguna Beach. Comment
  RSA542494  Mimulus aurantiacus var. pubescens Fred M. Roberts, Carol A. Roberts 1988-5-12 3965 Orange Anaheim Hills: Upper Deer Canyon, 7.7 km W Sierra Peak. 268 Comment
  UCR241904  Mimulus aurantiacus var. pubescens Fred M. Roberts 2012-4-24 7522 Orange Peninsular Ranges; Coastal Foothills, San Joaquin Hills, Buck Gully, tributary canyon below San Joaquin Hills Road and 2.0 km W Signal Peak 167 Comment
  POM256713  Mimulus aurantiacus var. pubescens W. Pequegnat 1940-6-14 s.n. Orange Trabuca Pk. 1220 Comment
  RSA298665  Mimulus aurantiacus var. puniceus D. C. Michener 1980-5-15 3661 Orange San Juan River drainage. Northwest facing slope in chaparral along unnamed creek. 500 Comment
  RSA448179  Mimulus aurantiacus var. puniceus N. C. Cooper 1944-6-4 1341 Orange San Juan Canyon. 305 Comment
  RSA790707  Mimulus brevipes R. H. McArthur 1934-4-28 16 Orange Trabuco and Ladd Canyons. PR8. Comment
  SEINET11262502  Mimulus cardinalis A. C. Sanders, Fred M. Roberts 2008-7-16 35832 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago, canyon c 0.12 mi below Dripping Spring, c 7.5 mi ESE of Tustin (El Toro 7.5' Q.).; 0 360 Comment
  UCR174193  Mimulus cardinalis A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33017 Orange Peninsular Range; Santa Ana Mtns., San Juan Canyon, from Lower San Juan Picnic Area to c. 1 mile downstream, parallel to Hwy 74 and near Riverside Co. line 396 Comment
  RSA710408  Mimulus guttatus Fred M. Roberts 2005-10-3 6296 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
  SEINET7072485  Mimulus guttatus A. G. Vestal 1963-3-27 s.n. Orange At Cai+-ada Gobernadora. Coordinate datum: NAD27. Comment
  UCR106278  Mirabilis californica B. G. Pitzer, M. Georgiady 1997-4-5 3080 Orange San Joaquin Hills, Crystal Cove State Park, along 'No Dogs' Trail (from parking area, along western bottom edge of ridge between Muddy Canyon & Moro Canyon), to just below intersection with 'Poles' trail 152 Comment
  RSA0026049  Mirabilis jalapa R. E. Riefner Jr. 1995-7-27 95 -325 Orange City of Santa Ana, W. 18th St and Main Street. Comment
  UCR190984  Mirabilis laevis A. C. Sanders, Fred M. Roberts 2008-4-22 34994 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
  POM201768  Mirabilis laevis var. crassifolia L. M. Booth 1932-5-12 1035 Orange Newport Bay. Comment
  UCR203978  Mirabilis laevis var. crassifolia Fred M. Roberts 2008-3-12 6712 Orange South Coast, Dana Point Headlands Center for Natural Lands Mgmt. Preserve, west side, c. 0.8 km west of Marine Institute, Dana Point Harbor 50 Comment
  RSA465233  Mirabilis laevis var. crassifolia Albert J. Perkins 1914-3-14 s.n. Orange Santa Ana; near Coward s Cove. Comment
  CAS-BOT-BC435043  Mollugo verticillata L. R. Abrams 1901-6-1 1769 Orange Laguna Comment
  SBBG93266  Mollugo verticillata D. G. Nelson 1936-7-26 442 Orange mesa N of Newport Beach, Costa Mesa Comment
  CDA3375  Mollugo verticillata G. D. Barbe 1973-8-9 1695 a Orange Bordier s Nursery, 7231 Irvine Blvd., Santa Ana (Tustin). 0 Comment
  UC537286  Monanthochloe littoralis Lawrence M. Booth 1932-7-27 1318 Orange Newport Bay Comment
  UCD86109  Monanthochloe littoralis F. M. Reed 1928-2-10 5713 Orange Arch Beach. 46 Comment
  IRVC25321  Monardella hypoleuca Karlin G. Marsh, G. A. Marsh 1989-6-25 s.n. Orange Central Santiago Canyon, south slope, along old mine trail just below Santiago Truck Trail, 2.7km SSW Laurel Springs. Santa Ana Mountains 748 Comment
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Aug 13 2012
  UCR193799  Monardella hypoleuca subsp. intermedia A. C. Sanders, Fred M. Roberts 2008-7-3 35683 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor 415 Comment
  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
  RSA663203  Muhlenbergia asperifolia R. E. Riefner 2000-3-26 20 -150 Orange NCCP North Ranch Policy Plan Area. Fremont Canyon: N. of major stream fork along W. channel drainage 335 Comment
  UCR205983  Muhlenbergia asperifolia R. E. Riefner Jr. 2000-3-26 20- 150 Orange Peninsular Range, Santa Ana Mountains: North Ranch Policy Plan Area, Fremont Canyon, north of major stream fork along west channel drainage 335 Comment
  CAS-BOT-BC275290  Muhlenbergia microsperma Carl B. Wolf 1932-3-8 2689 Orange 0.5 mile N of Corona Del Mar, borders of Newport Bay 7 Comment
  LA9673  Muhlenbergia microsperma LeRoy Abrams; 1903-4-18 3260 Orange near San Juan Capristrano Comment
  POM265765  Muhlenbergia microsperma J. C. Roos 2081 Orange East of San Juan Capistrano Comment
  SEINET3129566  Muhlenbergia microsperma L. R. Abrams 1903-4-18 3260 Orange Trabuco arroyo near Capistrano 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
  UCR215280  Muhlenbergia microsperma Fred M. Roberts 2008-3-27 6811 Orange South Coast, Dana Point; Dana Point Headlands, Center for Natural Lands Mgmt. Preserve near Outlook 1, 0.5 km west of Marine Institute, Dana Point Harbor 45 Comment
  CAS-BOT-BC219360  Nama stenocarpa Le Roy Abrams 1901-6-13 1770 Orange Laguna 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
  RSA184087  Nassella lepida I. L. Wiggins 1966-3-2 20487 Orange Roadside, carbon Canyon 1.5 miles above the dam, Orange County Comment
  RSA683164  Nassella lepida Scott D. White, Amanda Duchardt 2003-4-10 9016 Orange Ridges & east-facing canyons above Trampas Canyon. 122 Comment
  RSA542547  Nassella pulchra Fred M. Roberts 1988-2-9 3782 Orange Lomas De Santiago: Loma Ridge, 1.5km N Bee Survey Mark., UTM 373 3700m N, 435 200m E 385 Comment
  RSA747596  Nassella pulchra Fred M. Roberts 2000-5-19 5329 Orange Lomas de Santiago: Loma Ridge, ridge west of Bee Peak above Bee Cyn. landfill, 0.2 km W Bee Peak. 500 Comment
  UCD87441  Nassella pulchra A. A. Beetle 1942-4-19 3103 Orange Rt. 101. 5 miles south of Laguna Beach. Comment
  CDA20832  Nasturtium officinale P. Akers 2006-3-25 PA 6 -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
  RSA734670  Nasturtium officinale A. C. Sanders, T. B. Salvato 2008-5-13 35375 Orange Lomas de Santiago, Santiago Canyon above (S of) mouth of Hangman Tree Canyon, just below Modjeska Canyon confluence 366 Comment
  UCSB48129  Nasturtium officinale Roberts, Jr., Fred 1981-4-12 Orange Santa Ana Mountains; San Juan Canyon, Hwy. 74, 1.3 km. by road E San Juan Guard Station; 0.9 km. SE Juan Rancho Survey Mark 295 Comment
  POM201688  Navarretia atractyloides L. M. Booth 816 Orange Santa Ana Canyon Comment
  UCR90772  Navarretia prostrata D. E. Bramlet 1995-4-29 2402 Orange Fairview Park, City of Costa Mesa. Site located some 366 m north of intersection of Wilson and Canyon Dr. and 152 m west of Canyon School, on a mesa overlooking the Santa Ana River 43 Comment
  CAS-BOT-BC109089  Nemacaulis denudata var. denudata E. K. Balls; P. C. Everett 1955-9-7 21431 Orange On Highway 101, mouth of Santa Ana River. 3 Comment
  RSA653148  Nemacaulis denudata var. denudata Judy Knouse 1974-5-5 s.n. Orange Newport Peninsula, 8th and 9th St. sand dunes 2 Comment
  SBBG126175  Nemacaulis denudata var. denudata O. F. Clarke 2003-5-7 Orange Least Tern Reserve, just N of mouth of Santa Ana River; Huntington Beach 4 Comment
  UCD170319  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
  RSA0051320  Nemophila menziesii Ophelia Frost 1932-3-28 s.n. Orange 2 miles NW of H.B. Comment
  POM347132  Nemophila menziesii var. integrifolia Marcus E. Jones 1926-3-13 s.n. Orange Santa Ana Canyon. Comment
  CAS-BOT-BC478170  Nephrolepis cordifolia R. E. Jr. Riefner 2014-6-14 14 -171 Orange City of Newport Beach, Cliff Drive Park, along Cliff Drive, near Beacon Street 44 Comment
  RSA687  Nicotiana bigelovii var. wallacei J. T. Howell 1927-7-5 266 Orange West side, Rancho Santa Ana [Botanic Garden]. 152 Comment
  RSA0069235  Nicotiana clevelandii Fred M. Roberts, Lee Ann Caranza 2009-4-7 7140 Orange Dana Point Headlands: Dana Point CNLM Preserve, 0.8 km WNW Dana Point Marine Institute at Dana Point Harbor. 60 Comment
  HSC21283  Nicotiana glauca D. W. Snell 1964-3-24 10 Orange 1 mi. E of Brea, N of Birch St. 120 Comment
  LA45882  Nicotiana glauca W. E. Pequegnat; 1937-9-6 sn Orange Santa Ana Mountains, Ortega Rd Comment
  OBI28517  Nicotiana glauca R. L. Allen 1978-8-28 s.n. Orange Mission Viejo, near Saddleback Ranch Apts; Los Alisos Blvd Comment
  UC1286994  Nicotiana glauca C. L. Hitchcock 1966-3-15 24144 Orange 1.5 mi e Brea (Stearns Lease) Comment
  POM201710  Nicotiana glauca L. M. Booth 1932-7-30 1338 Orange Santa Ana River, 2 miles from ocean Comment
  RSA0054918  Nicotiana glauca Thelma Shipe 1932-5-8 s.n. Orange Santa Ana Canyon. Comment
  RSA0060158  Nicotiana quadrivalvis A. C. Sanders, Fred M. Roberts 2008-4-22 34986 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
  UCR191236  Nicotiana quadrivalvis A. C. Sanders, Fred M. Roberts 2008-4-22 34986 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
  RSA0020234  Nicotiana quadrivalvis Gray s.n. Orange Orange Park Acres. Comment
  RSA70254  Nolina cismontana Philip A. Munz, I. M. Johnston 1922-5-18 3026 Orange Canyon heading east from Santa Ana River 229 Comment
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Apr 8 2018
  RSA70257  Nolina cismontana Frank W. Peirson 1923-5-5 3507 Orange Trabuco Canyon, Santa Ana Mountains 518 Comment
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Jan 6 2018
  RSA759277  Nolina cismontana Robt. Allen, Lori Whalen 2008-7-5 s.n. Orange Dry foothills along a SW-facing ridge, slong Santiago Truck Trail, 0.5 air miles E of USPF Forest Gate at Modjeska Grade Road. Comment
  SD121703  Nolina cismontana James C. Dice, Thomas Oberbauer 1986-5-3 651 Orange Santa Ana Mountains, 0.2 kilometer west of the community of Trabuco Canyon and ca. 1 kilometer east of O'Neill Regional Park Comment
  SD204870  Nolina cismontana R. E. Riefner Jr. 2007-6-14 07 256 Orange Santa Ana Mountains, Irvine Ranch Reserve, Fremont Canyon Conservation Easement, west fork Fremont Canyon, Donaldson Ranch area. 381 Comment
  UCR61531  Nolina cismontana James C. Dice 1986-5-31 s.n. Orange Mission Viejo, 1.2 km NW of Lake Mission Viejo, along SW edge of Vista delLago just west of the intersection w/ Canaveras 275 Comment
  UC501522  Nolina parryi Frank W. Peirson 1922-5-18 3026 Orange canyon heading e at river Santa Ana River 228 Comment
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Nov 26 2007
  RSA450860  Notholaena californica subsp. californica Gordon Marsh, K. G. Marsh 1978-1-27 s.n. Orange Santa Ana Mountains: Trabuco; N side of Upper Trabuco Canyon Road, about 2 mi E of Live Oak Canyon Road. 402 Comment
  CAS-BOT-BC176682  Nothoscordum gracile A. C. Sanders 2008-7-3 35714 Orange Peninsular Range; Santa Ana Mts.: Lomas de Santiago, Santiago Canyon near mouth of Limestone Cyn., at Agustione Staging Area 260 Comment
  UCD169159  Nothoscordum gracile A. C Sanders 2008-7-3 35714 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Canyon near mouth of Limestone Cyn., at Augustine Staging Area. 260 Comment
  UC1618040  Nuttallanthus texanus Donald G. Nelson 1935-4-14 283 Orange near Pacific Electric Railway Station, Newport Beach Comment
  RSA725515  Nyctocereus serpentinus Fred M. Roberts, Robert L. Allen 2007-9-28 6615 Orange Silverado Cyn., along Silverado Cyn. Rd. at eastern edge of town of Silverado. 347 Comment
  RSA797353  Oenothera bistorta D. M. McF 1956-4-11 8 Orange Moulton Ranch 152 Comment
  RSA2061  Oenothera californica subsp. californica Carl B. Wolf 1931-3-25 1935 Orange along Santa Fe R. R, 1 mile west of Atwood. 91 Comment
  RSA733637  Oenothera dentata L. C. Hull 1934-4-8 s.n. Orange Laguna Hills. Comment
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Jun 24 2020
  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
  RSA0029940  Oenothera speciosa Fred M. Roberts 2013-5-15 7772 Orange San Joaquin Hills: Buck Gully, north slope, Newport Beach, near Ocean Beach Drive, 1.8 km NW summit Pelican Hill. 122 Comment
  UC527179  Oenothera suffrutescens Carl B. Wolf 1932-7-2 Orange 1 1/2 mi e of Brea (on Cedar Street); Cedar Street 106 Comment
  CDA6652  Oldenlandia corymbosa W. Humphrey 1973-7-19 Orange 7231 Irvine Boulevard, Santa Ana. 0 Comment
  RSA753081  Olea europaea A. C. Sanders, Fred M. Roberts 2008-9-18 36081 Orange Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge. 320 Comment
  POM506  Oligomeris linifolia D. L. Crawford s.n. Orange Aliso Pt. (Laguna Beach region) Comment
  CAS-BOT-BC427454  Oligomeris linifolia Bradshaw 1902-1-1 s.n. Orange Arch Beach Comment
  RSA680344  Oncosiphon piluliferum Scott D. White, Jeff Lincer 2003-7-7 9616 Orange Former El Toro Marine Corps Air Stn. East of El Toro Marine Sch. and Irvine Blvd.; site of former dump. 140 Comment
  UCR240190  Oncosiphon piluliferum R. E. Riefner Jr. 2012-4-22 12- 71 Orange South Coast, city of Newport Beach, Newport Bay, Dover Shores, vicinity of West Wind Way and Santiago Drive 22 Comment
  RSA288741  Opuntia M. G. McLeod, D. L. Walkington, D. J. Pinkava, G. Smith 1970-9-7 292 -B Orange West side of Euclid Avenue, 1/2 mi N of bastanchury, Fullerton. Comment
  RSA288745  Opuntia M. G. McLeod, D. L. Walkington, D. J. Pinkava, G. Smith 1970-10-7 302 Orange Silverado Canyon, Santa Ana Mountains. Comment
  RSA288746  Opuntia X occidentalis M. G. McLeod, Walkington, Pinkava, G. Smith 1970-11-7 439 Orange 2 mi SW of Cook's Corner, Santa Ana Mountains. Comment
  RSA562722  Opuntia X occidentalis Steve Boyd, Timothy S. Ross 1992-5-19 7425 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
  UCD97983  Opuntia X occidentalis Janet McIntosh 1966-4-9 17 Orange State Highway 74, 20 miles northeast of San Juan Capistrano. Comment
  CAS-BOT-BC56216  Opuntia ficus-indica John Thomas Howell 1927-6-22 2574 Orange Field redacted by CAS, contact the data manager for more information Comment
  RSA542651  Opuntia littoralis var. vaseyi Fred M. Roberts, Carol A. Williams 1988-4-12 3924 Orange Lomas de Santiago: Loma Ridge, 3.3 km NW Bolero Lookout. 475 Comment
  SEINET6752377 Image available Opuntia prolifera Marc A. Baker, Bruce D. Parfitt 1987-4-12 7519 Orange Newport Beach, just W of bridge to Balboa Penninsula. Comment
  JEPS126146  Orobanche californica subsp. jepsonii Bob Allen with Alison Colwell 2005-7-21 05 -101 Orange Whiting Ranch Wilderness Park. Comment
  RSA0027779  Orobanche fasciculata Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49677 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak] 457 Comment
  RSA0066512  Orobanche fasciculata Le Roy Abrams 1901-6-15 1847 Orange Santiago Peak. Comment
  RSA542379  Orthocarpus purpurascens Fred M. Roberts Jr. 1987-4-21 3387 Orange Aliso Viejo: Aliso Creek, Aliso Creek bike Trail. 3.0 km ENE Moulton Peak. 73 Comment
  CAS-BOT-BC355775  Osmadenia tenella L. R. Abrams 1901-6-16 1789 Orange Trabuco Canon [Canyon] Comment
  CAS-BOT-BC355779  Osmadenia tenella Herbert L. Mason 1925-4-25 2903 Orange 5 miles south of Laguna Comment
  RSA700250  Osmadenia tenella Fred M. Roberts 2003-5-1 5676 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, Cristianitos Cyn., 0.5km SSW Gato Gate and 0.1km west of Cristianitos Rd. 99 Comment
  UCR103787  Oxalis californica Scott D. White 1997-2-19 4698 A Orange Santa Ana Mtns, above Modjeska Canyon; proposed water tank site 488 Comment
  UCSB3548  Oxalis californica Kamb, Peter 1948-6-19 Orange Holy Jim Canyon, Santa Ana Mtns. 609 Comment
  UCSB48385  Oxalis californica Roberts, Fred 1982-4-18 Orange San Juan Canyon, Hwy 74, 0.6km SW Lower San Juan Picnic Ground; 1.9km WNW Sitton Peak, Santa Ana Mtns. 420 Comment
  UC532157  Oxalis pes-caprae Carl B. Wolf 1934-12-26 6261 Orange 1/8 mi s San Juan Capistrano (in walnut orchard) 30 Comment
  UCR99085  Oxalis pes-caprae Scott D. White 1993-2-17 1052 Orange Vicinity of Olinda, near city of Brea, immediately north of Carbon Cyn Rd & east of Placentia Ave.; c. 1 mi. (airline) SSE of Tonner Cyn. 183 Comment
  POM17801  Oxytheca trilobata P. A. Munz 1923-6-14 7059 Orange Glen Ivy Trail to Santiago Peak. 1220 Comment
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Apr 1 2013
  RSA501314  Paeonia californica S. Zona, G. A. Allen, A. Liston, L. Rieseberg 1989-2-5 304 Orange San Juan Hot Springs along Ortega Hwy, alt 230m. 230 Comment
  SBBG104117  Paeonia californica B. Pitzer, S. Hemstreet 1992-5-21 1937 Orange St Hwy 74, 1 mi uphill from 2000 ft marker and to the left ca. 1 mi on old paved rd 762 Comment
  UCR191001  Paeonia californica A. C. Sanders, Fred M. Roberts 2008-4-22 35048 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
  SD247679  Paeonia californica R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49715 Orange Santa Ana Mountains: Bedrod Truck Trail, ca. 0.8 km below junction with Main Divide Truck Trail. Comment
  RSA797015  Pallenis maritima R. E. Riefner Jr. 2010-1-2 10 -3 Orange City of Laguna Beach, Moss Point, vicinity of Ocean Way at Ruby St. 2 Comment
  UCR241098  Pallenis maritima R. E. Riefner Jr. 2012-5-25 12- 393 Orange South Coast, City of Dana Point, rocky shore between Mussel Cove and Salt Creek Beach 5 Comment
  UCR2620  Panicum capillare F. M. Reed 1927-10-13 5624 Orange Transverse Range; Santa Ana Mtns; Santa Ana River Canyon, Santa Ana River channel above Sulphur Slide [Hill] 152 Comment
  RSA724059  Panicum virgatum R. E. Riefner 2006-10-8 6 -482 Orange City of Irvine, San Diego Creek near 405-Freeway. 49 Comment
  RSA542447  Papaver californicum Fred M. Roberts 1988-3-9 3844 Orange Laguna Beach, Goff Ridge, along Nyes Place, 0.9km NE Goff Island. 169 Comment
  RSA232964  Papaver orientale D. A. Young 1969-5-26 472 Orange 200 yards S of the Bra Canyon Blvd and Hwy 60 jct on the E side of the road. 274 Comment
  UC1971218  Parapholis incurva Louis C. Wheeler 1947-5-3 6475 Orange Newport Bay. Comment
  UCD88470  Parapholis incurva Alan A. Beetle 1958-9-7 13074 Orange Newport. Comment
  UCD88687  Parapholis incurva Louis C. Wheeler 1947-5-3 6475 Orange Newport Bay. Comment
  UCR158156  Parapholis incurva Adrian Wolf 1998-5-27 335 Orange South Coast, Newport Slough, south of oil fields, between Huntington Beach, Costa Mesa and Newport Beach, just south of the channelized mouth of the Santa Ana River 2 Comment
  UCR179758  Parapholis incurva R. E. Riefner Jr. 2005-7-9 05- 547 Orange South Coast, Huntington Beach, vicinity of Cynthia Dr. and Lavonne Lane along the Santa Ana River 7 Comment
  RSA753165  Parietaria floridana D. E. Bramlet 2008-5-15 4272 A Orange Upper Borrego Cyn. 152m east of the access road and 1.7km west of Santiago Cyn Road 450 Comment
  RSA752714  Parietaria hespera var. californica Fred M. Roberts, Sandra Leatherman, Jennifer Pareti 2009-4-14 7150 Orange Dana Point Headlands: Dana Strand Beach and slopes above beach, 0.8 km WNW Marine Institute at Dana Point Harbor. CNLM Dana Point Preserve. 3 Comment
  UCR174227  Paspalum dilatatum A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33031 Orange Peninsular Range; Santa Ana Mtns., San Juan Canyon, from Lower San Juan Picnic Area to c. 1 mile downstream, parallel to Hwy 74 and near Riverside Co. line 396 Comment
  RSA443823  Paspalum dilatatum 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
  SD227703  Paspalum distichum Scott D. White, Brian Leatherman 1997-6-12 5333 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. Comment
  RSA733050  Paspalum vaginatum R. E. Riefner 2003-10-17 03 -456 Orange City of San Juan Capistano, Trabuco Creek, S side of Del Obispo St. at Paseo Adelento St. 26 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
  UCD169410  Paspalum vaginatum R. E. Riefner Jr. 2012-10-21 12- 523 Orange City of Newport Beach, south of Poppy Street/Ocean Blvd, creek at base of stairs, Little Corona Beach. 7 Comment
  UCR204909  Paspalum vaginatum R. E. Riefner Jr. 2008-1-13 08- 9 Orange South Coast, city of Newport Beach, San Diego Creek near Hwy 73 overpass, east of Jamboree Road 6 Comment
  UC1543029  Pectocarya linearis subsp. ferocula Donald G. Nelson 1935-3-16 167 Orange n Fullerton (across valley from Hillcrest Park) Comment
  RSA450843  Pectocarya linearis subsp. ferocula Fred M. Roberts 1983-3-16 929 Orange Laguna Beach, Sycamore Hills, central ridge, 1.5km NNE jct E1 Toro and Laguna Canyon road, 5.5km ESE Signal Peak. 160 Comment
  RSA649  Pectocarya penicillata J. T. Howell 1928-2-26 861 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  UCSB52873  Pedicularis densiflora A., D.; Roberts, Fred 1983-3-22 Orange Santa Ana Mts.: San Juan Canyon, along Hwy 74, 2.7 km ENE San Juan Guard Station; 3.7 km SSW Sugarloaf Peak 360 Comment
  IRVC26703  Pelargonium echinatum Mark A. Elvin, J. Liou, J. Carpenter, J. Nguyen 2004-3-8 3167 Orange UCI Arboretum Southern Coastal 15 Comment
  UCR159812  Pelargonium grossularioides Mark A. Elvin 2005-5-14 4314 Orange Southern Coastal, UCI Arboretum 15 Comment
  UC185251  Pellaea andromedifolia Mrs. Carlotta C. Hall 1913-5-27 9407 Orange Santiago Canyon Comment
  UCR209668  Pellaea andromedifolia Fred M. Roberts 2008-4-16 6908 Orange South Coast, Dana Point Headlands, Center for Natural Lands Mgmt. Preserve, 0.8 km west of the Marine Institute, Dana Point Harbor 45 Comment
  RSA598963  Pellaea andromedifolia var. andromedifolia Scott D. White 1997-3-28 4835 Orange Above Modjeska Canyon, proposed water tank site 425 Comment
  RSA640077  Pellaea andromedifolia var. andromedifolia E. Robinson, Crocker 1916-3-29 s.n. Orange Santa Ana Mts. Miller's Canyon, near Murrietta. Comment
  RSA702806  Pellaea mucronata D. E. Bramlet, F. M. Roberts 2003-3-27 3359 Orange Donna O'Neill Reserve. 305m west of Cristianitos Rd. and 1.5km N of the E-W access road. 134 Comment
  CDA2294  Pennisetum setaceum D. G. Kelch 2006-12-9 6 .564 Orange Irvine. University Dr along tidal creek just E of I-73. Comment
  RSA0015000  Pennisetum setaceum Fred M. Roberts, David E. Bramlet 2008-5-13 6957 Orange Upper Weir Cyn., central fork, 3.5 km NE Roberst Peak 369 Comment
  RSA761797  Penstemon heterophyllus Robert Allen 2003-6-22 12310 Orange West-facing flank of Santiago Peak, near the saddle between Santiago and Modjeska Peaks, along North Main Divid Road. 1523 Comment
  RSA16497  Penstemon heterophyllus var. australis Percy C. Everett 1935-6-18 7210 Orange Santa Ana Mts., summit of Santiago Pk. 1732 Comment
  RSA539360  Penstemon heterophyllus var. australis Fred M. Roberts, Carol A. Roberts 1988-6-9 4077 Orange Santa Ana Mountains: Main Divide Truck Trail, saddle between Modjeska Peak and Santiago Pk., 0.5 km Ee summit of Modjeska Pk. 1445 Comment
  RSA401836  Penstemon spectabilis F. R. Fosberg 1931-6-21 S- 5085 Orange Lower Santiago Canyon. Comment
  RSA798599  Penstemon spectabilis Robert F. Thorne, E. W. Lathrop 1977-5-18 49735 Orange Northern Santa Ana Mountains: Pleasant's Peak Comment
  IRVC25401  Pentachaeta aurea Fred M. Roberts 1987-4-3 3336 Orange San Joaquin Hills; Irvine; central Shady Canyon, 2.9km NE Signal Hill. Central coastal 107 Comment
  RSA594885  Pentachaeta aurea Fred M. Roberts, Stadlander, Vizgirdas 1992-4-24 4840 Orange El Toro Marine Base: Mouth of Borrego Wash, 2.9 km SE Lambert Reservoir dam. 189 Comment
  RSA743385  Pentagramma triangularis subsp. viscosa Fred M. Roberts 2008-5-27 7009 Orange Dana Point: Dana Point Headlands, CNLM Preserve, 0.8km W Marine Institute, Dana Point Harbor. 45 Comment
  SEINET1906996  Persea borbonia R. W. Scora 1997-1 5145 Orange Scora's Persea Species Collection, Field 43, South Coast Resertch and Extension Center (Field Station), Irvine. 21 Comment
  CHSC109272  Persicaria lapathifolia Scott D. White; Matt Carlton 2003-11-20 9869 Orange Santa Ana Mountain Foothills: San Juan Creek in San Juan Capistrano 24 Comment
  RSA21070  Petunia parviflora Ramon Valverde 1938-8-4 9434 Orange Rancho Santa Ana, Santa Ana Canyon. 122 Comment
  RSA689  Petunia parviflora J. T. Howell 1927-7-18 426 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  POM201830  Petunia parviflora L. M. Booth 1932-12-16 1378 Orange Santa Ana River, near coast of Orange. 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
  UCR193073  Phacelia brachyloba A. C. Sanders, Mitch Provance 2008-5-20 35423 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago area, Santiago Creek Canyon, c. 3/4 mile below Modjeska Canyon confluence 355 Comment
  VVC263  Phacelia brachyloba P. J. MacKay 1990-5-25 s.n. Orange Peninsular Range, Hwy 74 near San Juan Hot Springs 198 Comment
  RSA734285  Phacelia cicutaria var. hispida A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34627 Orange Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 280 Comment
  UCR191362  Phacelia cicutaria var. hispida A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34627 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
  RSA0023264  Phacelia cicutaria var. hispida Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49776 Orange Santa Ana Mountains: Trabuco Canyon. Comment
  RSA650551  Phacelia cicutaria var. hispida Don Rimpau 1949-5-7 s.n. Orange Santa Ana Canyon. 183 Comment
  RSA741721  Phacelia cicutaria var. hubbyi R. E. Riefner Jr. 2008-6-3 8 -143 Orange Irvine Ranch Reserve, Fremont Canyon Conservation Easement, N Fremont Canyon, slope NE of Donaldson Ranch area. 444 Comment
  RSA500684  Phacelia distans M. B. Dunkle 1935-3-3 4348 Orange San Juan Canyon. 427 Comment
  RSA697781  Phacelia distans Minor Warne 1934-4-28 s.n. Orange Ladd Canyon-Santa Ana Mts. PR8. Comment
  RSA699772  Phacelia distans Keith E. Hoffmaster 1927-4-8 s.n. Orange Santa Ana Mountains. Comment
  SEINET7073422  Phacelia distans A. G. Vestal 1963-4-24 s.n. Orange La Paz Canyon, Rancho Mission Viejo. Coordinate datum: NAD27. Comment
  UC1075899  Phacelia distans E. K. Balls 1955-4-4 20425 Orange just n Dana Pt. (off Hwy 101 Alt.) 45 Comment
  RSA113263  Phacelia distans E. K. Balls 1955-4-4 20425 Orange N of Dana Poit off Hwy 101. 46 Comment
  RSA650516  Phacelia distans Shlomo Gat 1959-03 20 Orange Santa Ana Canyon. Comment
  UCSB48102  Phacelia distans Roberts, Fred 1982-4-3 Orange Santa Ana Mtns.: Lower Hot Springs Cyn., 0.6 km. by road N of San Juan Guard Station; 0.8 km. WSW Juan Rancho Survey Mark 240 Comment
  RSA0041602  Phacelia douglasii Anstruther Davidson 1917-1 s.n. Orange Laguna. Comment
  RSA697786  Phacelia hispida Kenneth Beard s.n. Orange Silverado Canyon. Comment
  RSA699144  Phacelia hispida R. H. McArthur 1934-4-28 s.n. Orange Ladd Canyon Comment
  RSA699654  Phacelia hispida Keith E. Hoffmaster 1934-4-22 s.n. Orange Santa Ana Mountains Comment
  RSA738986  Phacelia hispida Minor Warne 1934-4-28 s.n. Orange Ladd Canyon-Santa Ana Mts. PR8. 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
  CHSC42254  Phacelia minor Rusti Gammon 1986-3-22 10 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
  OBI13752  Phacelia minor Barrett Anderson 1975-5-10 576 Orange In Cleveland Natl Forest 244 Comment
  UCR192504  Phacelia parryi A. C. Sanders, Fred M. Roberts 2008-3-25 34551 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  UCR224034  Phacelia parryi Justin M. Wood 2010-3-31 1449 Orange Santa Ana Canyon, Santa Ana River floodplain, 0.25 mi north of Coal Canyon wildlife corridor, west of Green River Golf Course on bluff south of the river 122 Comment
  UCR263590  Phacelia parryi Ed Kentner 2012-4-5 126 Orange Lomas de Santiago, Whiting Ranch Wilderness Park 330 Comment
  RSA0125892  Phacelia ramosissima Fred M. Roberts Jr. 2012-5-9 7554 Orange Santa Ana Mountains: Lake Forest. along Serrano Creek, hiking trail, 0.7 km SSW intersection of Commerce Centre and Dimension Drives. 152 Comment
  RSA428287A  Phacelia ramosissima var. latifolia F. R. Fosberg 1931-6-21 S- 5135 Orange Silverado Canyon, Santa Ana Mts. 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
  CAS-BOT-BC250616  Phalaris minor Carl B. Wolf 1932-5-18 3636 Orange Rancho Santa Ana Botanic Garden, near East porch of administration bldg. 198 Comment
  IRVC21636  Phalaris minor R. L. Allen, Fred M. Roberts 1982-7-4 s.n. Orange Carbon Canyon, Carbon Canyon Rd., 0.6km by road SW county line; 2.3km NW Gilman Peak, Chino Hills 250 Comment
  IRVC8423  Phalaris minor J. B. Anderson 1966-4-22 603 Orange San Joaquin Hills: Los Trancos Canyon, along dirt road and near spring. Santa Ana Mountains 122 Comment
  RSA781939  Phoenix canariensis Mark A. Elvin 2003-2-23 2318 Orange Irvine, San Joaquin Marsh along the berm of San Diego Creek 3 Comment
  UCR98214  Pholistoma auritum B. G. Pitzer 1997-4-15 3135 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
  UCSB48112  Pholistoma auritum Roberts, Fred 1981-4-12 Orange Santa Ana Mtns.; San Juan Canyon, Hwy. 74, 1.3 km. by road E San Juan Guard Station; 0.9 km. SE Juan Rancho Survey Marker 295 Comment
  RSA750925  Phoradendron macrophyllum A. C. Sanders, Fred M. Roberts 2008-7-3 35699 Orange Weir Canyon, along Windy Ridge Rd. at wash crossing, 0.95 mi. SE of Walnut Canyon Reservoir 242 Comment
  SEINET10739258  Phoradendron macrophyllum Andrew Townesmith, Karen M. Meyer; Tracy Scott 2007-3-11 Townesmith 675 Orange Cleveland National Forest. Off Long Canyon Road, NW of intersection with Route 74. 752 Comment
  RSA759147  Phyla nodiflora Robert Allen 2007-4-28 s.n. Orange foothills, along Santiago Creek, N side of Irvine Regional Park 174 Comment
  POM1012  Phyllospadix torreyi D. L. Crawford 1916-7-28 s.n. Orange Laguna Beach Region Comment
  RSA33542  Phyllospadix torreyi N. C. Cooper 1942-11-8 2019 Orange Laguna Beach. 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
  IRVC874  Picris echioides R. Hobson 1965-4-10 Orange Santa Ana Heights, 2431 Mesa Dr. Southern Coastal Comment
  RSA752810  Picris echioides A. C. Sanders, Fred M. Roberts 2008-8-7 35993 Orange lower Weir Canyon, at narrow gorge c. 0.6 mi. above mouth of cyn at Irvine Ranch gate. 185 Comment
  RSA696194  Picris echioides Anonymous s.n. Orange Santa Ana Comment
  RSA655237  Pilularia americana D. E. Bramlet 1998-3-21 2579 Orange Fairview Park, City of Costa Mesa. The site is located some 366m N of the intersection of Wilson and Canyon Dr. and 152 m W of the Canyon School, on a mesa overlooking the Santa Ana River. 24 Comment
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Feb 26 2009
  CDA1425  Pinus halepensis D. G. Kelch 2006-12-9 06 .553-B Orange Irvine. University Dr along tidal creek just E of I-73. Comment
  CDA9465  Pinus halepensis D. G. Kelch 2006-12-9 6 .553 Orange Irvine. University Dr along tidal creek just E of I-73. Comment
  UCR186587  Pinus halepensis Robert DeRuff 1995-9-24 240 Orange Southern Coast, Newport Beach, Newport Back Bay, Eastbluff 6 Comment
  RSA659356  Pinus halepensis P. Shirokawa 1998-5-15 42 Orange Cleveland National Forest- Trabuco Ranger District, 4.25 miles from Ortega Highway (State Highway 74) on North Main Divide Road, and 0.5 miles into Falcon campground 1067 Comment
  RSA539395  Pinus radiata Fred M. Roberts, Carol A. Roberts 1988-11-3 4163 Orange Santa Ana Mtns.: Upper Trabuco Canyon near Main Divide Truck Trail, 1.3km NE Los Pinos Peak 1268 Comment
  UCR131522  Piperia elongata Robt. L. Allen, Christopher M. Barnhill 2004-1-10 12266 Orange Santa Ana Mtns., Trabuco Trail, c. 0.7 trail miles (1127 m) NW of Los Pinos Saddle, middle of top half of first switchback 1179 Comment
  RSA725506  Piptatherum miliaceum Fred M. Roberts 2007-9-11 6569 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
  RSA731802  Piptatherum miliaceum Fred M. Roberts, Sandy Leatherman 2007-11-9 6637 Orange Santa Ana Mtns.: San Juan Canyon, Lower San Juan Picnic Ground. 408 Comment
  UCR98242  Piptatherum miliaceum Scott D. White 1997-3-28 4826 Orange Santa Ana Mountains, Above Modjeska Canyon, proposed water tank site. 488 Comment
  UCR162342  Pittosporum tobira Robert DeRuff 1984-1 242 Orange Southern Coast, Newport Beach, Upper Newport Back Bay, North Star Beach 30 Comment
  UCR188937  Pittosporum undulatum Robert DeRuff 2006-1 566 Orange Newport Beach, Upper Newport Bay, Eastbluff 30 Comment
  RSA716096  Plagiobothrys acanthocarpus Fred M. Roberts, Melissa Ervin 2001-3-21 5385 Orange San Joaquin Hills: Upper San Canyon, c..a. 2km SE French Hill, within the Shady Cyn. Development. 98 Comment
  SBBG120621  Plagiobothrys acanthocarpus R. E. Riefner 2006-4-12 06 -116 Orange Irvine, N foot of San Joaquin Hills, vicinity of Quail Hill, SSW of 405 Freeway and Shady Cyn Rd 46 Comment
  UCR246481  Plagiobothrys acanthocarpus R. E. Riefner Jr. 2013-3-17 13- 44 Orange South Coast, city of Irvine, Jeffrey Trail, vicinity of Shady Canyon Dr. at Fossil Rd. 47 Comment
  RSA716095  Plagiobothrys collinus Fred M. Roberts, Melissa Ervin 2001-3-21 5386 Orange San Joaquin Hills: Upper San Canyon, c..a. 2km SE French Hill, within the Shady Cyn. Development. 98 Comment
  RSA368943  Plagiobothrys collinus var. californicus Albert J. Perkins 1914-3-9 s.n. Orange Laguna Beach Comment
  UCSB52465  Plagiobothrys collinus var. californicus Fritzke, Sue; Roberts, Fred 1982-4-2 Orange Laguna Niguel; hills, 3.5 km. ESE Aliso Peak; 3.2 km. ESE Alicia Fire Station, N of Del Avion 100 Comment
  RSA542655  Plagiobothrys fulvus var. campestris Fred M. Roberts 1988-3-15 3864 Orange Rancho Mission Viejo: Upper Gabino Canyon, 4.1 km SE Point Rancho Survey Marker. 191 Comment
  SBBG16000  Plagiobothrys nothofulvus D. E. Breedlove 1962-3-9 1795 Orange 4.4 mi E of San Juan Capistrano on St Hwy 74 112 Comment
  UC1212094  Plagiobothrys nothofulvus D. Bates 1960-4-2 2308 Orange Route 74 e San Juan Capistrano Comment
  RSA599634  Planodes virginica Fred M. Roberts, Nigel Hancock 1995-5-25 4949 Orange Costa Mesa: Fairview Park, just west of end of Canyon Drive, 0.1 km W Canyon School 24 Comment
  UCR237838  Plantago elongata Mark A. Elvin 2003-2-2 2261 Orange South Coast, San Joaquin Marsh, UCI campus SSE of intersection of Jamboree Blvd. and Campus Dr. 2 Comment
  RSA680562  Plantago erecta Scott D. White 2003-3-21 8814 Orange Santa Ana Mountain Foothills: Rancho Mission Viejo. East-facing slopes above an unnamed tributary to San Juan Creek. 122 Comment
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Oct 4 2010
  RSA764441  Plantago erecta Doris Bowers 1971-4-19 1684 Orange Black Star Canyon Indian Site 762 Comment
  UCR209377  Plantago erecta Fred M. Roberts, Linda Farley 2008-3-28 6834 Orange Santa Ana Mountains, Upper Weir Canyon, Irvine Ranch Conservancy, 3.3 km east-northeast of Robbers Peak on ridge north of canyon 427 Comment
  UCR5210  Plantago erecta Barbara T. Gittins, O. F. Clarke 1966-3-19 893 Orange Pacific slope, Irvine Ranch, east of University of California Irvine campus, Newport Beach 91 Comment
  RSA17217  Plantago hirtella var. galeottiana E. R. Johnson 1936-6-26 8006 Orange Rancho Santa Ana, Santa Ana Canyon, SW of Mexican village. 152 Comment
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Aug 19 2011
  UC76652  Plantago lanceolata E. A. Jumbro 1902-1 382 Orange Comment
  RSA698384  Plantago major R. H. McArthur 1934-4-14 s.n. Orange Forks of Laguna Canyon. Comment
  RSA749040  Platanus X acerifolia A. C. Sanders, Fred M. Roberts 2008-8-7 35976 Orange lower Weir Canyon, at narrow gorge c. 0.6 mi. above mouth of cyn at Irvine Ranch gate. 185 Comment
  RSA652981  Platanus racemosa Darren Day, Hal Willis 1984-5-5 16 Orange This plant was found growing on the east side of Laguna Canyon Rd. as you are traveling towards the city of Laguna Beach. This location is approximately 3.4 miles out of town. Comment
  SEINET5642642  Platanus racemosa Shelby J. Wood 2013-3-9 13 Orange Huntington Beach, Central Park.; 0 Comment
  JEPS51625  Platystemon californicus Alice King 1908-3-12 Orange Anaheim Plains Comment
  RSA722432  Platystemon californicus Frances Battey s.n. Orange Laguna Hills. Comment
  OBI81429  Plecostachys serpyllifolia Unknown 2007-4-28 07 -190 Orange City of Newport Beach, Dover Beach, vicinity of Morning Star Ln. and Polaris Dr. 7 Comment
  RSA0025114  Plecostachys serpyllifolia R. E. Riefner Jr. 2008-7-9 08 -220 Orange City of Laguna Beach, bluff area W. of West St. and Pacific Coast Highway. 5 Comment
  SBBG126061  Plecostachys serpyllifolia R. E. Riefner Jr. 2004-12-30 04 -681 Orange vicinity of W St and Pacific Coast Hwy; City of Laguna Beach 4 Comment
  SEINET4176011 Image available Plecostachys serpyllifolia R. E. Riefner Jr. 2009-7-18 09 -151 Orange City of Dana Point, near Salt Creek, vicinity of Ritz Carlton Resort 3 Comment
  UC2061635  Plecostachys serpyllifolia R. E. Riefner Jr. 2007-3-18 07 -153 Orange City of Newport Beach, Dover Beach, Newport Bay, vicinity of Morning Star Ln. and Polaris Dr. Comment
  UC2061643  Plecostachys serpyllifolia R. E. Riefner Jr. 2008-10-22 08 -312 Orange City of Laguna Beach, vicinity of West St. and Pacific Coast Highway. Comment
  CDA34952  Plecostachys serpyllifolia R. E. Riefner Jr. 2009-7-18 09 -151 Orange Dana Point; beach near Salt Creek, vicinity of Ritz Carlton Resort. Comment
  RSA765878  Plecostachys serpyllifolia R. E. Riefner Jr. 2006-7-26 06 -319 Orange City of Irvine, N side of Irvine Blvd. at SR-133 on-ramp. 64 Comment
  RSA790114  Plecostachys serpyllifolia R. E. Riefner Jr. 2011-7-7 11 -73 Orange City of Laguna Beach, Moss Point, vicinity of Ocean Way at Ruby St. 5 Comment
  RSA232234  Pluchea odorata James Henrickson 1970-7-24 4986 Orange 2 miles NW of Huntington Beach around small freshwater industrial pond at eastern margin of Bolsa Chica Salt Marsh along Huntington Beach Mesa. 0 Comment
  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
  RSA131096  Pluchea odorata E. K. Balls, E. R. Blakley 1958-10-15 23721 Orange In Narrow Canyon E oif Laguna Canyon, S side Santa Cruz Island. 5 Comment
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Jun 27 2013
  UCR220961  Pluchea sericea Dick Newell, Don Millar 2010-4-27 020 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Agua Chinon wash 1/4 mile north of Hwy 241 toll road 226 Comment
  UCR52602  Pluchea sericea Jeri Hirshberg 1988-6-7 s.n. Orange Santa Ana Mountains, Santa Ana Mountains 275 Comment
  RSA931  Pluchea sericea J. T. Howell 1927-7-24 464 Orange Santa Ana River bottom near Rancho Santa Ana. 152 Comment
  CAS-BOT-BC255535  Poa annua Ira L. Wiggins 1966-3-1 20485 Orange At corner of South Campus Drive and State College Blvd, Fullerton Comment
  UCSB48074  Poa annua Fritzke, Sue; Roberts, Fred 1982-4-3 Orange Dana Point; hills, 1.0 km. N Dana Hills High School; 1.9 km. W Marco Forster Junior High School 100 Comment
  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
  UCR170300  Poa secunda J. B. Anderson 1966-5-3 636 Orange Santa Ana Mountains, Silverado Canyon, Modjeska Peak Road 1372 Comment
  CAS-BOT-BC225238  Polemoniaceae E. W. Lathrop 1974-6-27 7420 Orange Trabuco Oaks, Trabuca Canyon, Cleveland Nat'l Forest 396 Comment
  UCR158809  Polygala cornuta subsp. fishiae A. C. Sanders, Mark A. Elvin 2005-9-2 31611 Orange Santa Ana Mtns., upper Holy Jim Canyon, a major tributary of Trabuco Canyon, along the trail in the switchbacks 970 Comment
  UCR237811  Polygala cornuta var. fishiae Dick Newell, Judy Booth 2012-7-8 279 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, on Maple Springs Road 2.25 mi. NE of Maple Springs gate 915 Comment
  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
  UCR99858  Polygonum aviculare Scott D. White 1993-3-5 1126 Orange Tustin. Marine Air Corps Air Station: SE of Red Hill Ave and NE of Barranca 15 Comment
  UC1543012  Polygonum aviculare subsp. aviculare Donald G. Nelson 1936-5-29 430 Orange edge of lot along hwy between Marshall Avenue and Grand Avenue (on W. Commonwealth Ave.); Buena Park Comment
  RSA5604  Polygonum aviculare subsp. aviculare Carl B. Wolf 1932-6-20 3755 Orange Common around the administration Blds, Rancho Santa Ana Botanic Garden. 198 Comment
  POM2373  Polygonum coccineum D. L. Crawford 1916-7-26 s.n. Orange Laguna Canyon. Comment
  RSA466307  Polygonum coccineum J. Ewan 1931-7-31 4754 Orange Wesefall near Hungtinton Beach. Comment
  UC729963  Polygonum hydropiperoides Carl B. Wolf 1932-6-13 3719 Orange Fullerton; Malvern and Nicholas Avenues 53 Comment
  UCR210362  Polygonum hydropiperoides T. B. Salvato, Billy Deane 2006-10-16 1927 Orange South Coast, Irvine, San Diego Creek flood control channel, between Michelson Drive and the 405 FWY 12 Comment
  CDA21557  Polygonum lapathifolium A. Thomas, Mark A. Elvin 2006-9-23 609231 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
  UCR150563  Polygonum lapathifolium Scott D. White, Matt Carlton 2003-11-20 9869 Orange South Coastal Plain, Santa Ana Mtn foothills. San Juan Creek in San Juan Capistrano 24 Comment
  RSA542468  Polygonum lapathifolium Fred M. Roberts, Gordon A. Marsh 1987-8-31 3588 Orange Santa Ana River: adjacent to Santa Ana, 0.6km S Edinger bridge. 14 Comment
  IRVC20354  Polypodium californicum Fred M. Roberts 1983-3-10 880 Orange Dana Point headlands: south of old cove road on cliff at west margin of Dana Point Harbor; 0.8km s of Richard Henry Dana School. Southern Coastal 50 Comment
  POM188245  Polypodium californicum Marcus E. Jones 1931-3-23 20425 Orange Laguna Comment
  RSA689928  Polypodium californicum Albert J. Perkins 1913-3-6 s.n. Orange San Juan Hot Springs 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
  RSA85051  Polypodium californicum F. W. Peirson 1919-11-8 1516 Orange South of Arch Beach, near Laguna Beach Comment
  SD48446  Polypodium californicum E. K. Balls, P. C. Everett 1957-11-25 22837 Orange Trabuco Canyon Comment
  IRVC3040  Polypodium californicum B. Reynolds 1965-4-19 HS0573 Orange Newport Beach; Upper Newport Bay. Southern Coastal Comment
  SEINET218267 Image available Polypodium californicum Robinson, Crocker 1916-3-28 Orange Santa Ana Mts. Comment
  CAS-BOT-BC232960  Polypogon australis Carl B. Wolf 1932-6-13 3723 Orange Fullerton, Malvern and Nicholas Avenues 53 Comment
  IRVC23141  Polypogon interruptus Fred M. Roberts 1985-7-10 2006 Orange Capistrano Beach: San Juan Creek, 0.5km from the ocean, 0.2km N of Pacific Coast Highway. southern coastal 2 Comment
  IRVC12899  Polypogon monspeliensis B. T. Gittins 1967-6-11 2010 Orange Upper Newport Bay. southern coastal Comment
  IRVC29711  Polypogon monspeliensis Mark A. Elvin, Barry S. Nerhus 2006-11-4 5247 Orange Huntington Beach; 1.5 km SW of Wintersburg, SW of jct Slater and Goldenwest; Shipley Nature Center. Southern Coastal 1 Comment
  UC729866  Polypogon monspeliensis Carl B. Wolf 1932-7-2 3819 Orange 1/8 mi below La Vida Springs; Carbon Canyon, below La Vida Springs 213 Comment
  UCD91234  Polypogon monspeliensis A. A. Beetle 1942-4-19 3101 Orange Rt. 101. 5 miles south of Laguna Beach. Comment
  UCD91371  Polypogon monspeliensis Peter H. Raven 1957-9-28 11375 Orange north limits of Surfside. Comment
  UCR102003  Polypogon monspeliensis B. G. Pitzer 1997-3-25 3037 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
  UCR16076  Polypogon monspeliensis N. J. Moriarty 1973-5-20 730520- 6 Orange Huntington Beach, 0.4 miles south of Newland Street on the east side of Pacific Coast Hwy Comment
  RSA710595  Polypogon monspeliensis Mark Elvin 2004-5-2 3416 Orange Southern Coastal, Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7 km (air) NNW of UC Irvine Campus center. 3 Comment
  UCSB48202  Polypogon viridis Roberts, Fred 1981-6-26 Orange Santa Ana Mts., San Juan Canyon, 0.1 km. N Lower San Juan Picnic Ground 390 Comment
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Jan 25 2021
  RSA714396  Populus balsamifera subsp. trichocarpa R. E. Riefner 2006-4-8 6 -111 Orange South Coast: San Juan Capistrano (city), San Juan Creek at La Novia Ave. 22 Comment
  RSA735118  Populus balsamifera subsp. trichocarpa R. E. Riefner 2008-6-22 8 -210 Orange City of Yorba Linda, Santa Ana Canyon, Santa Ana River, La Palma Ave. near Old Village Rd. 111 Comment
  UCR138393  Populus balsamifera subsp. trichocarpa Scott D. White, Brian Leatherman 1997-6-12 5327 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
  UCR51476  Populus balsamifera subsp. trichocarpa S. J. Myers 1987-9-9 s.n. Orange San Juan Capistrano, immediately east of San Juan Creek and 0.25 mi. north of Hwy 1, just north of existing sewage treatment plant 9 Comment
  RSA542356  Populus fremontii Fred M. Roberts Jr. 1987-5-12 3436 Orange Santa Ana River: Horseshoe Bend, 3.9km S San Juan Hill; 1.0km ENE Wier Canyon Road bridge. 104 Comment
  CAS-BOT-BC356150  Porophyllum gracile John Thomas Howell 1927-7-28 2865 Orange Hills on n. side of Santa Ana Canon [Canyon] 182 Comment
  RSA598970  Porophyllum gracile Scott D. White 1997-3-28 4841 Orange Above Modjeska Canyon, proposed water tank site 425 Comment
  RSA934  Porophyllum gracile J. T. Howell 1927-7-28 509 Orange Nolina Canyon, Rancho Santa Ana 152 Comment
  POM6394  Potamogeton nodosus L. T. Street, Williams 1919-5-4 2689 Orange Laguna Lakes. [now Big Laguna Lake, San Diego Co.] Comment
  POM6395  Potamogeton nodosus L. T. Street, Williams 1919-5-4 2689 Orange Laguna Lakes. [now Big Laguna Lake, San Diego Co.] Comment
  RSA797914  Potentilla glandulosa subsp. glandulosa Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49824 Orange Santa Ana Mountains: Trabuco Canyon. Comment
  RSA0127595  Primula clevelandii var. clevelandii Fred M. Roberts 2016-3-17 8025 Orange San Joaquin Hills: City of Irvine, Ridge between Coyote Canyon and Bommer Canyon along Turtle Ridge Trail, 0.6 km NNE Signal Peak and 1.1 km SW Cattle Camp. 314 Comment
  RSA613774  Prunus caroliniana B. Pitzer, M. Georgiady 1997-4-5 3078 Orange San Joaquin Hills Crystal Cove State Park, along No Dogs Trail (from parking area, along western bottom edge of ridge between Muddy Canyon and Moro Canyon), to just below intersection with Poles trail 152 Comment
  RSA443844  Prunus ilicifolia Gordon Marsh, Karlin G. Marsh 1977-5-2 s.n. Orange Pine Canyon, between Blue Light Mine and second mine, near swithback. Comment
  RSA5316  Prunus ilicifolia B. D. Stark 1933-1-5 4499 Orange 2 mi. so. of summit of skyline Drive on road along ridge to Santiago Peak. Santa Ana Mts. 1067 Comment
  LA208150  Prunus ilicifolia subsp. lyonii Donald Lee Johnson; 1965-1 sn Orange San Clemente Island, Reservoir Canyon Comment
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Jan 29 2015
  UC2027329  Pseudognaphalium leucocephalum Robert Lee Allen 2012-8-11 Orange Santa Ana Mts, Caspers Wilderness Park, Bell Canyon. Comment
  UCR269241  Pseudognaphalium leucocephalum R. E. Riefner Jr. 2015-12-9 15- 458 Orange South Coast, Rancho Mission Viejo, east of San Juan Capistrano north of Antonio Parkway and north of Ortega Hwy 74, near Sendero Field Park 55 Comment
  UCSB48107  Pseudognaphalium luteoalbum Roberts, Jr., Fred 1981-4-12 Orange Santa Ana Mtns.; San Juan Canyon, Hwy. 74, 1.3 km. by road E San Juan Guard Station; 0.9 km. SE Juan Rancho Survey Marker 295 Comment
  UC520305  Pseudognaphalium ramosissimum Joseph Andorfer Ewan 1932-7-28 7689 Orange Corona del Mar Comment
  IRVC22667  Pseudotsuga macrocarpa Fred M. Roberts 1985-5-9 1728 Orange Santa Ana Mountains: Upper McVicker Canyon, 1.8km NE Los Pinos Peak. Peninsular Ranges 1113 Comment
  SD240763  Pseudotsuga macrocarpa June Latting, F. Shropshire 1972-4-28 Orange Peninsular ranges/ Santa Ana Mountains: Silverado Canyon, 6.3 miles from Silverado Forest Station [presumably up canyon from Silverado] at S curve in road (Santiago Peak 7.5'Q) 1159 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
  RSA587887  Psilocarphus brevissimus Fred M. Roberts 1990-5-7 4612 Orange Rancho Mission Viejo: Ridge S of Blind Canyon and E of Christianitos Canyon, TRW Lease Holding, 5.0 km NE Clemente Survey Marker 152 Comment
  RSA609946  Psilocarphus brevissimus D. Bramlet 1993-4-25 2333 Orange University of California, Irvine Campus, UCI Ecological Reserve. This site is 150 ft. south of Berkeley Ave. and 1000 ft. west of the northeast reserve entrance 41 Comment
  UC2046895  Psilotum nudum R. E. Riefner Jr. 2015-8-27 15 -357 Orange City of Laguna Beach, N side of North Coast Highway E side of La Brea St. Comment
  RSA790025  Psoralea macrostachya Robert F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49564 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74) Comment
  UCR174209  Psoralea macrostachya A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33029 Orange Peninsular Range; Santa Ana Mtns., San Juan Canyon, from Lower San Juan Picnic Area to c. 1 mile downstream, parallel to Hwy 74 and near Riverside Co. line 396 Comment
  IRVC26429  Ptelea aptera Mark A. Elvin 2004-2-22 3151 Orange UCI Arboretum Southern Coastal 15 Comment
  RSA733702  Pteridium aquilinum Minor Warne 1934-4-28 s.n. Orange Ladd Canyon-Santa Ana Mts Comment
  UCR174219  Pteridium aquilinum A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33034 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
  RSA771718  Pteridium aquilinum Robert Allen, Richard S. Newell, Roger E. Reinke 2006-6-30 s.n. Orange Santa Ana Mts., Holy Jim Canyon Trail. About 1 mile up trail from forest gate. 609 Comment
  POM2151  Pterostegia drymarioides P. A. Munz 1918-5-4 2217 Orange Laguna Canyon. Comment
  POM8744  Pterostegia drymarioides P. A. Munz, R. D. Harwood 1920-4-20 3724 Orange Santa Ana Mountains: Silverado Canon 549 Comment
  RSA198  Pterostegia drymarioides J. T. Howell 1927-6-24 198 Orange Aliso Canyon, Rancho Santa Ana. 274 Comment
  RSA392941  Pterostegia drymarioides Albert J. Perkins 1913-4-27 s.n. Orange Trabuco Canon. Comment
  RSA749999  Pterostegia drymarioides A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35324 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
  RSA38191  Pulicaria hispanica P. A. Munz 1946-10-2 11554 Orange Santa Ana River Canyon, Rancho Santa Ana 122 Comment
  CDA7617  Pulicaria paludosa Robert L. Pope 1959-8-14 Orange Ray Miller property, Santa Ana Canyon, east of Fullerton. 0 Comment
  RSA683921  Pulicaria paludosa Scott D. White, Matt Carlton 2003-11-20 9863 Orange Santa Ana Mountain foothills; San Juan Creek in San Juan Capistrano; (San Juan Capistrano). 24 Comment
  RSA689537  Pulicaria paludosa R. E. Riefner 2002-5-4 20 -93 Orange Upper Newport Bay, Jamboree Rd at Bayview Dr. 15 Comment
  RSA718967  Pulicaria paludosa Fred M. Roberts, Robert L. Allen 2006-10-8 6413 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
  RSA734920  Pulicaria paludosa A. C. Sanders, Fred M. Roberts 2008-6-17 35463 Orange Lomas de Santiago, Loma Ridge on Hicks Canyon Haul Road, c. midway between Foothill Transportation Corridor and Santiago Cyn. Rd. 335 Comment
  UCR146951  Pulicaria paludosa Mark A. Elvin 2003-8-24 3013 Orange Southern Coastal, San Joaquin Hills, Irvine, UCI, 100 m N of the intersection of Shady Canyon Drive and Bonita Canyon Road 72 Comment
  UCR192974  Pulicaria paludosa A. C. Sanders, Fred M. Roberts 2008-6-17 35463 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge on Hicks Canyon Haul Road, c. midway between Foothill Transportation Corridor and Santiago Cyn. Rd. 335 Comment
  IRVC26753  Pulicaria paludosa Mark A. Elvin 2003-8-24 3013 Orange San Joaquin Hills, Irvine, UCI, 100m N of the intersection of Shady Canyon Drive and Bonita Canyon Road. Southern coastal 72 Comment
  RSA573294  Pycnanthemum californicum Steve Boyd, T. S. Ross 1994-9-14 8351 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area of the Cleveland National Forest, Lucas Canyon just downstream of Lucus Canyon Trail crossing. 311 Comment
  SD136812  Pycnanthemum californicum Steve Boyd, Tim Ross 1994-9-14 8351 Orange Southern Santa Ana Mts., San Mateo Canyon Wilderness Area of the Cleveland Nat Forest, Lucas Canyon Trail at stream crossing Lucas Canyon 310 Comment
  RSA221064  Pyrus communis E. W. Lathrop 1966-4-18 6176 Orange Santa Ana Mountains, 4 miles northeast of Lake Irvine, Black Star Canyon, Cleveland National Forest, Trabuco District. Comment
  UCSB52414  Quercus X acutidens Roberts, Fred 1982-7-9 Orange Santa Ana Mtns,: San Juan Canyon, Hwy 74, entrance to Lower San Juan Picnic ground; 1.9km NW Sitton Peak 305 Comment
  RSA12364  Quercus X grandidentata E. R. Johnson 1934-1-6 5564 Orange Santa Ana Mts., on slopes of Sierra Peak at about the head of Claymine Canyon. 762 Comment
  CAS-BOT-BC61812  Quercus agrifolia C. B. Wolf 1931-3-6 1832 Orange 1.5 miles below Trabuco Oaks along Trabuco Canyon road, west slope Santa Ana Mts. 304 Comment
  RSA735196  Quercus agrifolia Keith E. Hoffmaster 1927-4-8 408 Orange Santa Ana Mountains. Comment
  SEINET12031056  Quercus agrifolia S. A. Thompson, Rawlins, J. E. 1988-1 5258 Orange Cleveland National Forest, 3.8 mi E of San Juan Hot Springs on CA 74 370 Comment
  IRVC16619  Quercus berberidifolia Gordon A. Marsh, Karlin G. Marsh 1977-9-1 s.n. Orange Mission Viejo: Jeronimo Springs. Southern Coastal Comment
  IRVC23425  Quercus berberidifolia Fred M. Roberts 1983-10-9 1144 Orange Laguna Beach: Temple Hill; 1.2km NNW Top of the World School. Southern Coastal 310 Comment
  RSA642705  Quercus berberidifolia R. E. Riefner Jr. 2000-3-19 20 -144 Orange NCCP North Ranch Policy Plan Area. Main Divide Road; top of Gypsum Canyon, Windy Ridge. 518 Comment
  UCR228787  Quercus berberidifolia Dick Newell, Don Millar 2011-5-3 142 Orange Coastal Plains, San Joaquin Hills, Laguna Canyon Wilderness Park, Willow Trail 160 Comment
  RSA679221  Quercus chrysolepis Fred M. Roberts 2003-6-25 5945 Orange Santiago peak, north slopes along ridge east of Main Divide truck trail, 0.6km NNW summit. 1605 Comment
  IRVC24554  Quercus dumosa Fred M. Roberts 1987-8-6 3580 Orange San Joaquin Hills: Pelican Hill; E slope above Los Trancos Canyon; 0.4km ESE Pelican Hill survey mark. Southern Coastal 200 Comment
  CAS-BOT-BC516762  Quercus suber R. E. Riefner, Jr. 2012-11-18 12 -555 Orange City of Irvine, San Joaquin Wildlife Sanctuary, South Loop Trail, N of San Diego Creek, W of Campus Drive 7 Comment
  CAS-BOT-BC104666  Quercus wislizeni Carl B. Wolf 1933-10-8 55339 Orange Santa Ana Mts. Main divide motorway, NW side of Trabuco Peak 1310 Comment
  UC1135896  Quercus wislizeni H. E. Norton 1931-3-20 42 Orange ridge between Ladd Canyon and East Fork Canyon; Corona Quad. 1036 Comment
  IRVC1347  Quercus wislizeni var. frutescens Mike Munier 1963-4-27 s.n. Orange O'Neill Park Southern Coastal Comment
  RSA679225  Quercus wislizeni var. frutescens Fred M. Roberts 2003-6-25 5946 Orange Santiago peak, north slopes along ridge east of Main Divide truck trail, 0.6km NNW summit. 1605 Comment
  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
  IRVC14751  Rafinesquia californica A. S. Boughey 1968-4-16 242 Orange Santiago Canyon/Lower Modjeska Cyn, Fleming Property. Santa Ana Mountains Comment
  IRVC29093  Ranunculus californicus var. californicus Fred M. Roberts 1989-3-17 4208 Orange Aliso Canyon, 3.3km SSE Moulton Pk. Aliso-Wood Canyon Regional Park 30 Comment
  POM7623  Ranunculus hebecarpus P. A. Munz, R. D. Harwood 1920-4-25 3739 Orange Santa Ana Mountains, Silverado Canyon. 549 Comment
  IRVC19391  Raphanus sativus R. L. Allen 1983-2-12 A623 Orange Fullerton; Hillcrest Park, slope bordering E Valley View Drive. Southern Coastal Comment
  UCR126264  Rhamnus alaternus Roger E. Reinke 2003-2-18 s.n. Orange South Coast, Newport Back Bay, Big Canyon 30 Comment
  RSA797378  Rhamnus californica Minor Warne 1934-4-7 12 Orange Ladd Canyon Comment
  OBI5938  Rhamnus ilicifolia Carl B. Wolf 1931-3-6 1845 Orange W slope Santa Ana mts, Trabuco cyn, 1/2 mi above Trabuco oaks 457 Comment
  SBBG52716  Rhamnus ilicifolia C. Davidson 1977-5-18 5620 Orange Bear Springs, Santa Ana Mtns 121 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
  UC484250  Rhus C. B. Wolf 1931-3-6 Orange 1 1/2 mi below Trabuco Camp grounds (Trabuco Canyon, w slope Santa Ana Mountains); Santa Ana Mountains 548 Comment
  IRVC27932  Rhus glauca A. C. Sanders, Mark A. Elvin 2003-10-12 27327 Orange Irvine; UCI Arboretum, UCI campus near intersection of Jamboree Blvd and Campus Dr. Southern Coastal 15 Comment
  CAS-BOT-BC167873  Rhus integrifolia John Thomas Howell 1927-6-16 2445 Orange North side Santa Ana [Canon] Canyon 152 Comment
  LA62813  Rhus integrifolia Carl Epling; Harlan Lewis 1940-4-21 sn Orange hills 6 mi. E of San Juan Capistrano Comment
  RSA17492  Rhus integrifolia Ramon Valverde 1936-8-31 8237 Orange Rancho Santa Ana Botanic Garden.Wild plants in Pine Canyon. Comment
  RSA5376  Rhus integrifolia B. D. Stark 1932-12-30 4463 Orange Rancho Santa Ana, slopes NW of tennis court. 192 Comment
  SEINET6666489 Image available Rhus integrifolia T. C. Arambula 1966-1 26 Orange Firestone Boy Scout Reservation Comment
  SJSU375  Rhus integrifolia A. W. Jacobs 1938-8-4 Orange Trabuca Canyon Rd, Santa Ana Mts c. 6.5 mi NE of El Toro Comment
  UCR145989  Rhus integrifolia June Latting 1977-1-12 s.n. Orange Chino Hills, Tonner Canyon 213 Comment
  UCR98235  Rhus laurina B. G. Pitzer 1997-4-15 3142 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
  RSA0054853  Rhus laurina Grace Adams 1938-5-28 s.n. Orange Santiago Creek. Comment
  CAS-BOT-BC167934  Rhus ovata John Thomas Howell 1927-7-26 2843 Orange Claymine [Canon] Canyon, n. Santa Ana Mts. 243 Comment
  RSA12723  Rhus ovata C. B. Wolf 1934-9-21 6138 Orange Silverado Canyon, at base of Silverado motorway, W slope Santa Ana Mountains. 732 Comment
  RSA695989  Rhus ovata Keith E. Hoffmaster 1934-4-8 s.n. Orange Gypsum can (n. Corona), Santa Ana Mts Comment
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Dec 11 2011
  RSA696221  Rhus ovata Keith E. Hoffmaster 1936-5-3 s.n. Orange Santa Ana Mts (Santiago Peak) Comment
  UCR234141  Rhus ovata Dick Newell, Judy Booth 2012-3-30 243 Orange Peninsular Range; Santa Ana Mtns., Maple Springs Road, Cleveland National Forest 258 Comment
  RSA0037200  Rhus ovata Paul Shirokawa 1998-4-28 11 Orange Cleveland National Forest - Trabuco Ranger District, 4.75 miles from Ortega Highway (State Highway 74) on North Main Divide Road, and 0.6 miles along Blue Jay Road. 1066 Comment
  RSA0024855  Ribes cereum Minor Warne 1934-2-23 s.n. Orange Santiago Canyon. Comment
  RSA698891  Ribes hesperium Tozier, Estes 1950-1-30 s.n. Orange Silverado. Comment
  POM12991  Ribes indecorum P. A. Munz, I. M. Johnston 1922-5-18 5310 Orange Santa Ana River Canyon. 457 Comment
  RSA1175  Ribes indecorum B. D. Stark 1930-2-21 1475 Orange Black Star Creek. 457 Comment
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Sep 5 2013
  RSA2109  Ribes indecorum Carl B. Wolf 1931-3-6 1833 Orange Trabuco Canyon Road, 1.25 miles below Trabuco Oaks. 305 Comment
  RSA439665  Ribes indecorum E. Crow 1929-2-22 213 Orange Gypsum Canyon, Santa Ana Mountains. Near Corona. Comment
  UC1127273  Ribes malvaceum R. St. John 1931-2-13 191 Orange 1 mi w Plot 100 Elsinore Trabuco Canyon; Elsinore Quadrangle 1066 Comment
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Nov 27 2011
  RSA0018261  Ribes roezlii Percy C. Everett 1935-6-18 7215 Orange Santa Ana Mts: Summit of Santiago Peak. 1732 Comment
  CAS-BOT-BC173740  Ribes speciosum C. B. Wolf 1931-3-6 1863 Orange 1 mi. no. of mouth of Harding Canyon, west slope of Santa Ana Mts. 304 Comment
  LA205521  Ribes speciosum C. B. Wolf; 1931-3-6 1863 Orange 1 mi. N of mouth of Harding Canyon, W. slope of Santa Ana Mts Comment
  RSA454953  Ribes speciosum M. B. Dunkle 1934-2-19 3840 Orange San Juan Canyon. 427 Comment
  RSA602110  Ribes speciosum Scott D. White 1997-5-6 5038 Orange Santa Ana Mountians, Santiago Canyon Area: Unnamed tributary to Santiago Creek flowing from the SW, directly W of Pancho Canyon . Lomas de Santiago S179. 366 Comment
  RSA608233  Ribes speciosum Steve Boyd, Bart O'Brien 1998-1-13 10067 Orange Santa Ana Mountains: north end of the range, saddle between Mabey and Fremont canyons, along Main Divide Road ( 3S04) ca. 1.0 mi N of Oak Flat. 884 Comment
  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
  UCR241064  Ribes speciosum Dick Newell, Don Millar 2013-2-26 316 Orange South Coast, Willow Canyon Trail, Laguna Wilderness, 0.4 mi. NW of 133 Hwy and El Toro Rd. 163 Comment
  UCR274186  Ribes speciosum Dick Newell, Don Millar 2015-12-1 415 Orange South Coast, San Joaquin Hills, Buck Gully, Newport Beach, 0.63 mile WSW of San Joaquin Road and Newport Ridge Dr. 123 Comment
  UCR3197  Ribes speciosum Chuck Elliott 1964-5-2 s.n. Orange Los Angeles Basin Region, Carbon Canyon 61 Comment
  UCSB9363  Ribes speciosum Lloyd, Robert 1959-4-17 Orange 10 miles south of West Corona on the Oak Flats Fire Rd; Santa Ana Mt. Range 792 Comment
  SD175819  Ricinus communis D. G. Kelch 2006-12-9 06 560 Orange Irvine. University Dr. along tidal creek just E of I-73. 9 Comment
  RSA0042758  Ricinus communis Grace Adams 1938-5-30 s.n. Orange Santiago Creek. Comment
  RSA652429  Ricinus communis Norman Willis 1948-2-8 s.n. Orange 2 miles E of Orange. 60 Comment
  UCR234146  Robinia pseudoacacia Dick Newell, Judy Booth 2012-3-30 238 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, along E Santiago Canyon Rd. at Irvine Lake 247 Comment
  LA46159  Romneya coulteri P. C. Everett; 1936-9-19 8270 Orange Silverado Canyon, in the vincity of forest service rd gate 761 Comment
  RSA0014061  Romneya coulteri Fred M. Roberts 2008-5-30 7018 Orange Lomas de Santiago: Santiago Creek wash, south of Irvine Mesa, 1.5 km SE Silverado Sch., Irvine Ranch Conservancy. 326 Comment
  RSA2097  Romneya coulteri B. D. Stark 1931-5-18 2054 Orange Santa Ana River bottom, SW of Ranch Houses, Rancho Santa Ana. 122 Comment
  SBBG104114  Romneya coulteri B. Pitzer, S. Hemstreet 1992-5-21 1938 Orange St Hwy 74, 1 mi uphill from the 2000 ft marker, and on left ca. 1 mi on old paved Rd 762 Comment
  UC144803  Romneya coulteri Katharine Brandegee June 1910 Orange The Dumps Anaheim Comment
  SEINET7881036 Image available Romneya coulteri F. R. Fosberg 1931-1 S 5094 Orange Lower Santiago Comment
  CAS-BOT-BC92180  Romneya coulteri var. coulteri Helen D. Geis 1902-5-1 s.n. Orange Santa Ana River Canon [Canyon]. Comment
  RSA0059633  Rorippa nasturtium-aquaticum R. E. Riefner Jr. 2003-11-30 03 -483 Orange Peters Canyon Channel at Alton St., E of the Jamboree Rd. near Irvine City Hall. 22 Comment
  JEPS47230  Rosa L. M. Booth 1932-6-7 1161 Orange Newport Bay Comment
  POM10514  Rosa californica Philip A. Munz, R. D. Harwood 1920-4-24 3752 Orange Santa Ana Mountains, Sierra [Freemont] Canyon. 366 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
  UCSB52860  Rubus ursinus Roberts, Fred; Marsh, K. 1984-4-21 Orange Santa Ana Mtns.: Lost Women Canyon, 2.3km WSW Bald Peak; 2.3km SE Bedford Peak 222 Comment
  RSA699560  Rubus vitifolius Minor Warne 1934-03 s.n. Orange Santa Ana River Banks Comment
  JEPS39886  Rumex conglomeratus Lawrence M. Booth 1932-6-9 1178 Orange ner coast Santa Ana River Comment
  UCR173937  Rumex conglomeratus A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33006 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
  JEPS39877  Rumex crispus Lawrence M. Booth 1932-5-12 1051 Orange Newport Bay Comment
  UCR193609  Rumex crispus A. C. Sanders, Fred M. Roberts 2008-5-6 35237 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, head of Hicks Canyon, south of Santiago Reservoir 351 Comment
  RSA5827  Rumex crispus Carl B. Wolf 1932-6-28 3795 Orange Bryant Ranch, north boundary of field. 9 Comment
  RSA713577  Rumex crispus R. E. Riefner Jr. 2005-7-9 5 -550 Orange City of Mission Viejo, Oso Creek, ca. 0.5 mi N of Paseo De Colinas on Camino Capistrano. 86 Comment
  JEPS39872  Rumex maritimus Lawrence M. Booth 1932-6-28 1220 Orange Bolsas Creek 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
  UCR241051  Rumex salicifolius var. denticulatus Robert DeRuff 2012-9-27 550 A Orange South Coast, Upper Newport Bay, upper end of Big Canyon near Jamboree Rd. 14 Comment
  CAS-BOT-BC454145  Ruppia maritima S. B. Parish; W. F. Parish 1882-10-1 1607 Orange Newport Bay Comment
  RSA728661  Sagina saginoides R. E. Riefner 2003-2-22 03 -124 Orange City of Laguna Beach, Moulton Meadows Park, near Balboa Ave., and Del Mar Ave. Mima Mound Terrain habitat. 261 Comment
  CHSC26084  Salicornia bigelovii James Henrickson 1970-9-5 5314 Orange 3 1/2 miles NW of Huntington Beach, 1/4 mile SE of Warner Ave. in Lower Littoral zone of Bolsa Chica Salt Marsh along outer Bolsa Bay. 0 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
  SFV20020  Salicornia depressa A. Dittmer, S. Dark 2004-10-3 75 Orange Bolsa Chica wetlands. South side of public parking lot off Highway 1. Comment
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Feb 9 2020
  JEPS73722  Salicornia virginica L. R. Heckard with T. I. Chuang and R. Bacigalupi 1968-7-16 2043 Orange n of Newport Beach (across U.S. Highway 101 from Huntington State Beach); Bolsas Marsh Comment
  UC455214  Salicornia virginica I. J. Condit 1908-7-20 Orange Los Alamitos Comment
  RSA5779  Salix exigua Carl B. Wolf 1932-7-7 3845 Orange Bixby Ave., 0.7 mile W of Hansen road (0.2 mile W of SE corner of NE/4 of NW/4). 8 Comment
  SBBG58935  Salix exigua var. hindsiana C. B. Wolf 1932-4-15 2953 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Cyn 120 Comment
  CAS-BOT-BC6083  Salix gooddingii LeRoy Abrams 1903-4-16 3256 Orange Santa Ana River between Fullerton and Orange Comment
  RSA759168  Salix gooddingii A. C. Sanders 2008-5-28 35446 Orange Lomas de Santiago, Bee Flat at mouth of Limestone Canyon. 264 Comment
  UC492354  Salix gooddingii Carl B. Wolf 1932-4-15 2955 Orange near Santa Ana R. Rancho Santa Ana (at s.e. corner of pear orchard); Santa Ana Canyon 120 Comment
  LA208699  Salix laevigata Carl Hedin; Joseph Ewan 1932-7-9 7685 Orange Santa Ana River 8 km below Prado (Rincon) [Area 7] Comment
  RSA16482  Salix laevigata Percy C. Everett 1935-6-19 7225 Orange Main Divide Motorway, Bear Spring. 1220 Comment
  RSA725464  Salix laevigata Fred M. Roberts 2007-8-6 6553 Orange San Joaquin Hills: Laguna Beach, Laguna Cyn. on east side of Laguna Cyn. Rd. adj. to dog park, 1.2 km S (air) from El Toro Road and 1.8 km WSW Moulton Survey Mk. 52 Comment
  RSA735353  Salix laevigata R. H. McArthur 1934-3-1 s.n. Orange Santa Ana River at 1st Street. Comment
  RSA801981  Salix laevigata Minor Warne 1934-2-28 s.n. Orange Bed of Santa Ana River Comment
  SD1032  Salix laevigata Carl B. Wolf 1932-4-8 2949 Orange Rancho Santa Ane, near Santa Ana River, Santa Ana Canyon 120 Comment
  UC498105  Salix laevigata L. M. Booth Dec. 1932 1380 Orange Newport Beach Comment
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Jun 19 2006
  UC506445  Salix laevigata Carl Hedin and Joseph Ewan 1933-3-19 7686 Orange Comment
  UC506450  Salix laevigata Carl Hedin and Joseph Ewan 1932-7-9 7681 Orange 8 km. below Prado (Rincon); Santa Ana R. Comment
  RSA0070788  Salix laevigata CNPS Accuracy Assessment Team 2014-4-28 1134 Orange Black Star Canyon. Comment
  CAS-BOT-BC125331  Salix lasiandra var. lasiandra R. E. Riefner, Jr. 2006-10-4 06 -475 Orange Peninsular Range; Santa Ana Mtns. Foothills: Lake Forest, Aliso Creek near Portola Parkway at El Toro Rd. 225 Comment
  RSA142  Salix lasiolepis J. T. Howell 1927-7-14 393 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  RSA357006  Salix lasiolepis Robert F. Thorne 1975-4-6 45569 Orange San Joaquin Marsh: Near Irvine and coast. Comment
  UC1618070  Salix lasiolepis Donald G. Nelson 1935-7-6 205 Orange San Juan Canyon Comment
  RSA0048653  Salix lasiolepis G. Jentges 1932-2-6 s.n. Orange Wash near railroad track. Comment
  CAS-BOT-BC126307  Salix sessilifolia Carl B. Wolf 1932-7-7 3845 Orange Rancho Santa Ana, along ditch on Bixby Ave., 1 km. west of Hansen Road, near town of Los Alamitos 7 Comment
  RSA39339  Salpichroa origanifolia E. L. Paddock 1943-5-28 12744 Orange Little Tia Juana Campsite, Sunny Hills Ranch, Fullerton. Comment
  CAS-BOT-BC176841  Salsola australis Ira L. Wiggins 1965-10-27 20306 Orange Along Brea Canyon Road just SW of Los Angeles County Line Comment
  CDA23060  Salsola australis Mark A. Elvin, D. G. Kelch 2006-12-9 5295 Orange Southern Coastal; Newport Backbay; Big Canyon, lower end. Comment
  CDA3168  Salsola australis R. E. Riefner Jr. 2007-1-2 16 -Jul Orange City of Lake Forest, along Bake Parkway at Dimension Road. Comment
  SEINET5586232  Salsola australis A. C. Sanders, Fred M. Roberts, Jutta Burger 2009-1 37200 Orange Peninsular Range; Santa Ana Mtsn.: Lomas de Santiago, Bee Flat at mouth of Limestone Canyon. 264 Comment
  RSA5384  Salvia apiana B. D. Stark 1932-12-30 1705 Orange Rancho Santa Ana, 1/4 mile W of Roundtop. 457 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
  HSC14342  Salvia columbariae J. W. Johnson 1961-3-29 Orange Newport Beach, N slope overlooking upper Newport Bay Comment
  UCSB47594  Salvia columbariae Roberts, Fred 1980-5-3 Orange Santa Ana Mtns; San Juan Canyon: Rte.74; 0.6 km E San Juan Guard Station 238 Comment
  CAS-BOT-BC233670  Salvia leucophylla C. B. Wolf 1943-6-8 11449 Orange Rancho Santa Ana Botanic Garden 198 Comment
  RSA1566  Salvia leucophylla J. T. Howell 1928-7-10 1095 Orange Black Star Canyon, Santa Ana Mts. 457 Comment
  RSA587882  Salvia leucophylla Fred M. Roberts 1990-5-8 4617 Orange Chino Hills: Soquel Canyon, c. 1.2 km NNW of Gilman Peak. 240 Comment
  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
  CAS-BOT-BC229997  Salvia mellifera Marcus E. Jones 1926-3-10 s.n. Orange Near Santa Ana Canon [Canyon] Comment
  OBI30186  Salvia mellifera Diane Terrell 1969-4-30 110 Orange At Tucker Wildlife Sanctuary in Modjeska Cyn 427 Comment
  RSA434144  Salvia mellifera E. A. McGregor 1964-6-4 s.n. Orange On Highway 74, between Elsinor and San Juan Capistrano. 915 Comment
  RSA658202  Salvia mellifera T. A. Daubert 1991-5-19 652 Orange Tucker Wildlife Sanctuary, Modjeska Canyon inside sanctuary. Comment
  CLARK-A1528-589  Salvia spathacea Danny Sall 1970-4-25 3 Orange Silverado Canyon 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
  RSA3156  Sambucus mexicana C. B. Wolf 1931-7-25 2293 Orange Above irrigation canal, just north of Mexican houses. Rancho Santa Ana. 122 Comment
  RSA650821  Sambucus mexicana Daniel Truong 1991-5-13 6 Orange Irvine Regional Park, left field adjacent to main entrance, within 1/4 mile radius of 'closed area' Comment
  UCR193031  Sambucus mexicana A. C. Sanders, Fred M. Roberts 2008-6-17 35517 Orange Peninsular Range; Santa Ana Mtns., middle section of Weir Canyon, SSE of Walnut Canyon Reservoir 225 Comment
  RSA542586  Sanicula arguta Fred M. Roberts 1988-3-15 3867 Orange Rancho Mission Viejo: Central Gabino Canyon, 4.4 km SE Point Rancho Survey Marker. 164 Comment
  UCD127918  Sanicula arguta P. B. Kennedy 1924-2-5 s.n. Orange Irvine Range near Santa Ana. Comment
  UCR193346  Sanicula bipinnatifida A. C. Sanders 2008-5-28 35435 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Bee Flat at mouth of Limestone Canyon 264 Comment
  SD37460  Sarcocornia pacifica Edith A. Purer 1932-8-31 4876 Orange Moist location on sand dunes. Comment
  UCR175518  Satureja chandleri Mark A. Elvin, A. C. Sanders 2005-9-2 4499 Orange Peninsular Ranges, Santa Ana Mtns: Mouth of Lion Canyon, just upstream from Lower San Juan Campground 457 Comment
  UCSB48097  Schinus molle Roberts, Fred 1981-4-11 Orange Ortega Hwy.; Hwy 74 near San Juan Creek crossing, 5.2 km. E San Juan Capistrano 52 Comment
  RSA725511  Schinus terebinthifolius Fred M. Roberts 2007-9-11 6564 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
  IRVC21660  Schismus barbatus R. L. Allen, Fred M. Roberts, Jr. 1982-7-4 A 672 Orange Chino Hills: Carbon Canyon, Carbon Canyon Rd. (State Hwy 142), 1.1 - 1.5 mi SW of the San Bernardino County line. Santa Ana Mountains Comment
  RSA732074  Schismus barbatus A. C. Sanders, Fred M. Roberts 2008-3-25 34561 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  RSA773561  Schismus barbatus Fred M. Roberts 1999-5-14 5217 Orange Peninsular Ranges; Santa Ana Mts.: Lomas de Santiago, Loma Ridge; Upper Limestone Canyon on slopes above Bolero Spring, 2.4 km NNW Bolero Lookout 451 Comment
  RSA0057936  Schismus barbatus Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49667 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. Comment
  RSA697524  Schoenoplectus americanus Minor Warne 1934-5-13 s.n. Orange Talbert Drainage. Comment
  UCR193036  Schoenoplectus americanus A. C. Sanders, Fred M. Roberts 2008-6-17 35493 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, West Loma Ridge Spur Road c. 0.8 mi SW of Irvine Lake and 0.9 mi. SE of Sheriff's Training Facility, just east of Hwy 241 280 Comment
  UCSB52891  Schoenoplectus americanus Roberts, Fred 1984-10-18 Orange Santa Ana Mtns.: San Juan Canyon, 2.5 km. ENE San Juan Guard Station; 4.0 km. WNW Sitton Peak 310 Comment
  CAS-BOT-BC111264  Schoenoplectus californicus Mrs. M. T. Bradshaw 1901-11-1 s.n. Orange Orange, Orange County. Comment
  RSA793256  Schoenoplectus californicus Robert F. Thorne 1984-1 s.n. Orange Newport Back Bay Comment
  RSA5934  Schoenoplectus californicus Carl B. Wolf 1932-7-7 3862 Orange Opposite the Bryant Ranch: on N side of Bryant Avenue, 0.5 mile east of Los Alamitos Boulevard near Los Alamitos. 8 Comment
  SD253872  Scirpus microcarpus Jim Riley 2013-10-15 117 Orange San Clemente area; 0.56 miles ESE intersection Avenida Pico and Camino La Pedriza; just N San Diego County line 68 Comment
  UCR174222  Scirpus microcarpus A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33022 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
  UCR231159  Scrophularia californica Dick Newell, Don Millar, Shara Harris 2011-6-21 190 Orange Peninsular Range; Santa Ana Mtns., mouth of Fremont Canyon near Irvine Lake dam spillway 231 Comment
  POM6374  Scrophularia californica subsp. floribunda Philip A. Munz, Street, Williams 1919-5-3 2617 Orange Santa Ana River Canyon. Comment
  POM4224  Scrophularia californica subsp. floribunda Robinson, Crocker 1916-3-28 s.n. Orange Santa Ana Mts. Comment
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Sep 3 2011
  UC284873  Selaginella asprella P. A. Munz 1923-9-7 7744 Orange Santiago Peak; Santa Ana Mts. 1706 Comment
  IRVC3586  Selaginella bigelovii Anonymous 1965-3-11 Orange Back Bay. Newport Beach Comment
  RSA651616  Selaginella bigelovii J. Bruce Smiley 1948-2-9 s.n. Orange In Santiago Creek, 7 miles east of Orange. Comment
  RSA594877  Selaginella bigelovii Fred M. Roberts, Rick Riefner 1992-2-15 4832 Orange Lomas De Santiago: Foothill Ranch north of El Toro Road, c. 4.7 kilometers SSE Bolero Lookout. 295 Comment
  CAS-BOT-BC363477  Senecio californicus Helen D. Geis 1902-1-1 537 Orange Santa Ana Comment
  UC566656  Senecio californicus H. L. Mason 1926-4-25 2908 Orange five mi s Laguna Comment
  SBBG132983  Senecio linearifolius S. D. White, M. Honer 2004-5-17 10401 Orange ridges and open slopes directly N of intersection of Crown Valley Parkway and Pacific Island Dr; City of Laguna Niguel 61 Comment
  UCR200664  Senecio linearifolius Daniel Sanchez-Mata 2006-7-1 s.n. Orange Laguna Niguel, Dana Point Highlands, Crown Valley Parkway at Pacific Island Drive 70 Comment
  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
  CAS-BOT-BC364604  Senecio vulgaris Ira L. Wiggins 1966-2-18 20447 Orange Roadside near end of county road, 1/2 mi. W. of entrance to Rancho Santa Ana Comment
  RSA184082  Senecio vulgaris I. L. Wiggins 1966-2-18 20447 Orange 0.5 mile west of entrance to Rancho Santa Ana Comment
  RSA610224  Sesuvium verrucosum Fred M. Roberts Jr., Julie Vanderwier 1997-4-22 5022 Orange Bolasa Chica Salt Marsh: (U. S. Fish Wildlife Service cell 60), west of old oil field, 0.8 km S Chica survey Mark. 0 Comment
  IRVC21695  Setaria lutescens Fred M. Roberts 1984-8-6 1366 Orange UC Irvine, along Adobe Circle Road, 0.9km ENE campus center; 2.3km W French Hill, Irvine 30 Comment
  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
  RSA723481  Setaria megaphylla R. E. Riefner 2006-11-12 6 -667 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
  SEINET2116164  Setaria megaphylla R. E. Riefner Jr. 2006-11-12 06 -667 Orange San Joaquin gun Club, Tustin Quad: City of Newport Beach, urban creek draining into San Diego Creek at confluence with Newport Bay, San Diego Creek at SR-73 overpass 10 Comment
  SD245216  Setaria parviflora R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49619 Orange Santa Ana Mountains: about 1 mile above San Juan Fire Station. Dry, rocky bluffs above San Juan Creek. Comment
  IRVC1829  Setaria sphacelata I. L. Wiggins 1965-9-26 20266 Orange California State College at Fullerton: orange grove just S of Letters and Science Building. Southern Coastal Comment
  UCR152761  Sibara virginica D. E. Bramlet 2004-3-26 3542 Orange South Coast, Fairview Park in Costa Mesa, 183 m west of Canyon School and 366 m NW of intersection of Wilson & Canyon Dr. 24 Comment
  RSA732152  Sidalcea malviflora A. C. Sanders, Fred M. Roberts 2008-4-22 35018 Orange Santa Ana Mtns.: Lomas de Santiago, Limestone Canyon, c. 2 miles SW of Silverado. 1200 Comment
  RSA329668  Sidalcea malviflora Gary D. Wallace 1966-4-16 480 Orange Along Hwy 101 about 10 miles north of Camp Pendleton. Comment
  UCSB47611  Sidalcea malviflora Roberts, Fred 1980-5-3 Orange 0.1km NE Falcon Group Camp, Santa Ana Mtns. 1012 Comment
  CAS-BOT-BC205740  Sidalcea neomexicana subsp. thurberi Carl B. Wolf 1936-4-22 7770 Orange East of Los Alamitos, at Northwest corner of Hansen Road & Bryant Ave. 15 Comment
  CAS-BOT-BC384499  Silene antirrhina Helen D. Geis 1902-1-1 522 Orange Santiago Canon [Canyon] Comment
  CAS-BOT-BC384501  Silene antirrhina LeRoy Abrams 1903-4-18 3272 Orange Trabuco arroyo, near Capistrano Comment
  IRVC22793  Silene gallica Fred M. Roberts 1985-5-16 1816 Orange mouth of Laurel Canyon, 4.0km SE Signal Peak, San Joaquin Hills 85 Comment
  RSA797354A  Silene gallica D. M. McF 1956-4-11 7 Orange Moulton Ranch, South Coast. 152 Comment
  RSA797291  Silene gallica D. M. McF 1953-4-3 s.n. Orange Irvine Coast G.C. Corona Del Mar. Comment
  UCR242755  Silene laciniata subsp. laciniata Fred M. Roberts 2012-5-10 7584 Orange SAN JOAQUIN HILLS: Buck Gully, south fork, north slope of Pelican Hill, along Pelican Hills Dr., 0.3 km N summit Pelican Hill. 189 Comment
  IRVC20496  Silene laciniata subsp. major Fred M. Roberts 1983-5-4 1026 Orange Temple Hill, Upper Rancho Laguna Canyon, 1.7km SSW Top of the World Sch.; 1.4km ENE Cactus Point, Laguna Beach 200 Comment
  RSA507174  Silene laciniata subsp. major Jeri Hirshberg 1988-6-7 s.n. Orange Santa Ana Mountains, head of Gypsum Canyon 412 Comment
  RSA768120  Silene laciniata subsp. major E. W. Lathrop 1974-6-27 7422 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  IRVC15152  Silene multinervia A. S. Boughey 1968-4-23 208 Orange Black Star Canyon, .5mi below Hidden Ranch; area burned this winter. Santa Ana Mountains Comment
  IRVC7928  Silene multinervia A. S. Boughey 1968-4-23 208 Orange Black Star Canyon, .5mi below Hidden Ranch; area burned this winter. Santa Ana Mountains Comment
  RSA16488  Silene verecunda subsp. platyota Percy C. Everett 1935-6-18 16488 Orange Santa Ana Mts., summit of Santiago Pk. 1732 Comment
  RSA682755  Sinapis arvensis Scott D. White, Amanda Duchardt 2003-3-27 8849 Orange Canyon bottom and west facing slopes above Canada Gobernadora. 91 Comment
  RSA0029937  Sisymbrium altissimum Fred M. Roberts 2013-5-15 7773 Orange San Joaquin Hills: Buck Gully, north slope, along south side of San Joaquin Hills Drive, 1.6 km NNW summit Pelican Hill. 174 Comment
  RSA4792  Sisymbrium irio James Snow s.n. Orange The Bryant Ranch, near Long Beach. Station #2, Plant #4. Comment
  RSA654311  Sisymbrium orientale Caralisa Breidenbaugh, Mark Breidenbaugh 1992-5-24 41 Orange 100 ft Northwest of Chino Hills State Park Boundary. 243 Comment
  RSA336970  Sisyrinchium bellum N. C. Cooper 1944-6-4 1330 Orange San Juan Canyon. 152 Comment
  SD236123  Sisyrinchium bellum A. C. Sanders, Fred M. Roberts, Amber ONeal, D. E. Bramlet 2008-5-9 35299 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, along old dirt road, c. 1.25 mi. ESE of Walnut Cyn Reservoir 340 Comment
  UCR241899  Sisyrinchium bellum Fred M. Roberts 2012-4-24 7536 Orange Peninsular Ranges; coastal foothills, San Joaquin Hills, Buck Gully, above main trail, 2 km W Signal Peak and about 0.4 km S San Joaquin Hills Road 155 Comment
  RSA503163  Sisyrinchium bellum Gary D. Wallace, G. Cromwell 1966-4-16 471 Orange Along coast highway; north of Camp Pendleton. Comment
  RSA715704  Solanum americanum Fred M. Roberts, Robert L. Allen 2005-10-15 6315 Orange San Juan Capistrano: San Juan Creek wash, east of La Novia Road bridge, 1.4km E Mission San Juan Capistrano, 27 Comment
  RSA743381  Solanum americanum Fred M. Roberts 2008-5-27 7000 Orange Dana Point: Dana Point Headlands, CNLM Preserve near NE Gate, 0.5km W Marine Institute (Dana Point Harbor). 75 Comment
  RSA5935  Solanum americanum Carl B. Wolf 1932-7-7 3837 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
  SEINET5571704  Solanum clokeyi H. S. Gentry 1962-1 19831 Orange Huntington Botanical Garden. Comment
  POM8757  Solanum douglasii Philip A. Munz, R. D. Harwood 1920-4-24 3757 Orange Santa Ana Mtns. Sierra [Freemont] Canyon. 366 Comment
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Sep 17 2011
  RSA221079  Solanum douglasii E. W. Lathrop 1966-5-1 6258 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland Nat'l Forest, Santa Ana Mountains. 396 Comment
  UC933970  Solanum douglasii Elton F. Paddock 1951-7-22 411 Orange near San Diego County line (San Clemente State Beach, near picnic tables, near railroad tracks); San Clemente State Beach Comment
  UCD126941  Solanum douglasii A. C. Sanders 1990-10-6 10198 Orange Newport Bay, North Star County Beach area on the SW end of the bay, ca. 2 km inland of Hwy 1. 1 Comment
  UCR207564  Solanum douglasii O. F. Clarke 2004-3-22 s.n. Orange Santa Ana River Canyon, Santa Ana River on the west side of Featherly Park 110 Comment
  UCR221897  Solanum douglasii Dick Newell, Don Millar 2010-10-5 41 Orange South Coast, city of Irvine, on Portola Pkwy. 1/4 mile east of Orchard Hills Rd. at Irvine Ranch Conservancy headquarters 95 Comment
  UCR98231  Solanum douglasii B. G. Pitzer 1997-4-15 3131 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
  RSA5969  Solanum douglasii Carl B. Wolf 1932-9-13 4042 Orange Bryant Ranch, No. boundary between San Gabriel River Flood Control Dike and Well, 1300 ft W of NE. corner of SE 1/4 sect. 25. 6 Comment
  UCR237801  Solanum esculentum Mark A. Elvin, Peter A. Bowler 2004-6-5 s.n. Orange South Coast, buffer zone of San Joaquin Marsh, UCI campus SSE of intersection of Jamboree Blvd. and Campus Dr. 2 Comment
  RSA38195  Solanum rostratum Ed Johnson 1946-8-22 11531 Orange sandy river bottom, Rancho Santa Ana, Santa Ana River Canyon 122 Comment
  RSA427452  Solanum umbelliferum F. R. Fosberg 1931-6-21 S- 5079 Orange Lower Santiago Canyon. Comment
  RSA80386  Solanum umbelliferum F. W. Peirson 1925-4-10 5737 Orange In Silverado Canyon. 610 Comment
  UC484245  Solanum umbelliferum C. B. Wolf 1931-3-6 1862 Orange 1 mi n of base of Modjeska Grade (w slope of Santa Ana Mountains); Santa Ana Mountains, Modjeska Grade 304 Comment
  RSA0020579  Solanum umbelliferum P. Shirokawa 1998-5-15 41 Orange Cleveland National Forest- Trabuco Ranger District, 2.3 miles from Ortega Highway (State Highway 74) on North Main Divide Road 960 Comment
  RSA704887  Solanum umbelliferum Doug Causen 1992-5-1 s.n. Orange one mile W Modjeska Cn. turnoff roadside easement. Comment
  UCSB41816  Solanum xanti Rowlands, Peter 1970-2-7 Orange Modjeska Cyn.; 1 mi.up oyn. from Tucker Wildlife Sanctuary on property of Norman FIemming 487 Comment
  POM18090  Solidago californica P. A. Munz 1923-9-7 7747 Orange Santiago Peak, Santa Ana Mountains. 1646 Comment
  RSA7474  Solidago californica C. B. Wolf 1933-8-24 5398 Orange Summit of Santiago Peak, Santa Ana Mountains 1732 Comment
  RSA7652  Solidago californica E. R. Johnson 1933-9-25 5524 Orange Muddy Springs near Roundtop, Santa Ana Rancho 366 Comment
  UCR193846  Solidago californica A. C. Sanders, Fred M. Roberts 2008-7-16 35853 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, upper Hangmans Tree Canyon 395 Comment
  UCR237815  Sonchus asper Mark A. Elvin 2003-2-2 2293 Orange South Coast, San Joaquin Marsh, UCI campus SSE of intersection of Jamboree Blvd. and Campus Dr. 2 Comment
  RSA5505  Sonchus oleraceus C. B. Wolf 1932-6-28 3759 Orange Along western half of no. boundary of 40 acre Valencia Orange grove at Bryant Ave. and Hansen Road. 9 Comment
  RSA653178  Sonchus oleraceus David Barrios 1991-5-8 29 Orange 1500 ft. Northwest of Fairmont Ave and Quail cir. 365 Comment
  RSA730994  Sonchus oleraceus Fred M. Roberts 2006-11-15 6468 Orange Santa Ana Cyn., Santa Ana River, north bank, 1.1 km ENE Imperial Hwy crossing. 85 Comment
  UCSB48372  Sonchus oleraceus Roberts, Jr., Fred 1982-5-22 Orange Dana Point: jct. of Stone Hill Dr. & Selva Rd.; 1.0 km ESE Dana Hills High School; 1.7 km SW Marco Forster Junior High School 40 Comment
  IRVC15381  Sorghum halepense J. B. Anderson 1966-5-2 634 Orange MacArthur Blvd. near the Newport Freeway. southern coastal Comment
  UC729939  Sorghum halepense Carl B. Wolf 1932-6-13 3724 Orange Malvern & Nicholas Aves. Fullerton 53 Comment
  RSA700185  Sorghum halepense Jeanne Paxton 1934-5-1 s.n. Orange Lemon Heights Comment
  CAS-BOT-BC235381  Spartina foliosa Peter H. Raven 1957-9-28 11379 Orange North limits of Surfside Comment
  POM47952  Spartina foliosa I. M. Johnston 1924-8-29 s.n. Orange 2.5 miles north of Balboa. Comment
  UCR2764  Spartina foliosa F. M. Reed 1927-11-23 5676 Orange South Coast, Anaheim Landing 1 Comment
  RSA91844  Spartina foliosa F. W. Peirson 1924-8-29 5083 Orange 2.5 miles from Balboa on road inland along creek. Comment
  UCR228775  Spartium junceum Dick Newell, Don Millar 2011-5-24 164 Orange Peninsular Range; Santa Ana Mtns., Silverado Canyon Rd. c. 1 mile above Blackstar Canyon Road 333 Comment
  RSA220991  Spartium junceum E. W. Lathrop 1966-4-6 6139 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  RSA658212  Spartium junceum T. A. Daubert 1991-5-19 647 Orange Tucker Wildlife Sanctuary, Modjeska Canyon inside sanctuary. Comment
  IRVC365  Spergula arvensis D. Van Gorden 1965-3-11 Orange 2212 Meyer Place. Costa Mesa Comment
  UCR5168  Spergula arvensis Barbara T. Gittins, O. F. Clarke 1966-3-19 889 Orange Pacific slope, Irvine Ranch, east of University of California Irvine campus, Newport Beach 91 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
  UCR181661  Spergularia B. G. Pitzer 1996-4-30 2784 Orange South Coast, Upper Newport Bay, Calif. Dept. Fish & Game Ecological Reserve, off (W of) Jamboree Road 6 Comment
  RSA0097853  Spergularia bocconi Scott D. White, Brian Leatherman 1997-6-12 5339 Orange East of San Juan Capistrano: San Juan Creek between Highway 74 bridge and Mission Vieja site, i.e. ca. 2-4 miles E of I-15/Highway 74 junction. 46 Comment
  UCR137445  Spergularia bocconi Scott D. White, Brian Leatherman 1997-6-12 5339 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
  UCR4045  Spergularia bocconi Carole Sims 1965-3-28 s.n. Orange San Clemente State Park Beach. Curbside at end of cul-de-sac 6 Comment
  POM202104  Spergularia macrotheca L. M. Booth 1932-5-19 1062 Orange Newport Bay. Comment
  RSA0097840  Spergularia macrotheca Norland 1929-4-7 s.n. Orange Los Alimitos. Comment
  RSA0098518  Spergularia marina D. L. Crawford 1916-7-26 s.n. Orange Aliso Canyon. Comment
  CDA25247  Spergularia rubra A. C. Sanders, T. B. Salvato 2008-5-13 35347 Orange Peninsular Range; Santa Ana Mountains; Lomas de Santiago, Santiago Canyon at mouth of Hangman Tree Canyon and lower Hangman Tree Canyon, c. 1/2 mile below Modjeska Canyon confluence. Comment
  RSA292  Spergularia salina J. T. Howell 1927-6-17 161 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA0127421  Spergularia villosa Fred M. Roberts 2016-3-17 8016 Orange San Joaquin Hills: City of Irvine, Ridge between Coyote Canyon and Bommer Canyon along Turtle Ridge Trail, 0.6 km NNE Signal Peak and 1.1 km SW Cattle Camp. 314 Comment
  CAS-BOT-BC236658  Sporobolus airoides John Thomas Howell 1927-6-21 2568 Orange Arroyo in hills on north side of Santa Ana Canyon 152 Comment
  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
  UCR193833  Stachys ajugoides A. C. Sanders, Fred M. Roberts 2008-7-16 35834 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Dripping Springs off Limestone Canyon, c. 7.5 mi. ESE of Tustin 391 Comment
  UC421601  Stachys ajugoides var. rigida John Thomas Howell 1927-7-3 2644 Orange Claymine Canyon Santa Ana Mtns Comment
  UCLA70972  Stachys ajugoides var. rigida C. Epling, H. Lewis Jun 1940 Orange near Summit (Ortega Road); Santa Ana Comment
  UCSB52461  Stachys rigida Roberts, Fred 1982-5-22 Orange Dana Point; jct. of Stone Hill & Selva rds; 1.0km ESE Dana Hills High School; I.7km SW Marco Forster Junior High School 40 Comment
  RSA0026254  Stachys rigida subsp. rigida Fred M. Roberts 2013-6-12 7796 Orange Peninsular Ranges: Santa Ana Mtns: Lower Silverado Canyon along Silverado Creek on north side of Silverado Canyon Road, 0.6 kilometers ENE Silverado School and 1.4 kilometers up stream Black Star Road Crossing. 320 Comment
  RSA0106593  Stebbinsoseris heterocarpa Scott D. White 1998-3-18 6213 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
  UC1971224  Stebbinsoseris heterocarpa Scott D. White, Noel Davis 1998-4-24 6347 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
  CAS-BOT-BC393822  Stellaria media Ira L. Wiggins 1966-3-5 20518 Orange about 1/2 mi. W of El Toro Post Office, along Highway S-18 Comment
  RSA184167  Stellaria media I. L. Wiggins 1966-3-1 20484 Orange Orange grove at corner of South Campus Dr. and State College Blvd. Fullerton Comment
  RSA749688  Stephanomeria A. C. Sanders, Fred M. Roberts 2008-7-16 35827 Orange Lomas de Santiago, along road in lower Limestone Canyon, near junction with Harding Truck Trail 290 Comment
  CAS-BOT-BC375194  Stephanomeria diegensis T. B. Salvato 2010-10-27 5129 Orange South Coast: Dana Point Headlands, Hilltop Park, north of Scenic Dr. and west of Green Lantern St., overlooking Dana Point Harbor 84 Comment
  POM122552  Stephanomeria diegensis Marcus E. Jones 1924-8-26 s.n. Orange Newport. Comment
  RSA0044742  Stephanomeria diegensis Fred M. Roberts, Art Davenport 2003-9-11 6010 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
  SD240904  Stephanomeria diegensis T. B. Salvato 2010-10-27 5129 Orange South Coast: Dana Point Headlands, Hilltop Park, north of Scenic Drive and west of Green Lantern Street, overlooking Dan Point Harbor (Dana Point 7.5'Q) 75 Comment
  SBBG42893  Stephanomeria diegensis L. D. Gottlieb 1968-8-14 6860 Orange St Hwy 74, immediately W of lower San Juan Cmpgrd 411 Comment
  POM201781  Stephanomeria exigua subsp. coronaria L. M. Booth 1932-7-27 1325 Orange Corona del Mar, Newport Beach, Bluff Ravine Comment
  CAS-BOT-BC375865  Stephanomeria virgata Ira L. Wiggins 1965-11-6 20340 Orange Kraemer Oil Estates, near Well No. 14, near end of county road leading to Rancho Santa Ana (extension of Orangethorpe Blvd.) Comment
  UCR192631  Stipa lepida A. C. Sanders, Fred M. Roberts 2008-3-25 34523 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  UCR191474  Stipa pulchra A. C. Sanders, Fred M. Roberts 2008-4-8 34741 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, head of Hicks Canyon, S of Santiago Reservoir 351 Comment
  POM1023  Stuckenia pectinata D. L. Crawford 1916-7-26 s.n. Orange Aliso Canyon Comment
  RSA737541  Stylocline gnaphaloides Fred M. Roberts 2008-3-12 6720 Orange Dana Point: Dana Point Headlands CNLM Preserve, western side, c.a. 0.8 km W Marine Institute (Dana Point Harbor). 50 Comment
  RSA957  Stylocline gnaphaloides J. T. Howell 1928-4-15 917 Orange near east bundary of Rancho Santa Ana 213 Comment
  CHSC116479  Styrax officinalis var. fulvescens R. F. Thorne; C. W. Tilforth, E. W. Lathrop 1977-4-27 49686 Orange Northern Santa Ana Mountains: Sierra Peak. [ locality information from field label; note on newspaper 'near Beek's Place, Skyline Drive crest, MDT Trail' (Main Divide Truck Trail] 899 Comment
  UC1123319  Styrax officinalis var. redivivus A. Lewis Apr 1934 380 Orange 2 mi ne Santiago Coal Mine; Cleveland National Forest, Corona Quad. Comment
  RSA725580  Styrax redivivus Fred M. Roberts, Robert L. Allen, Trish Smith 2007-6-15 6534 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
  RSA763837  Styrax redivivus Doris Bowers 1971-4-19 1695 Orange Santa Ana Mts. 762 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
  SBBG128111  Styrax redivivus R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49598 Orange tributary to San Juan Cyn, along Ortega Hwy (74) ca. 2 mi above San Juan Fire Station; Santa Ana Mtns Comment
  POM202729  Suaeda esteroa L. M. Booth 1932-12-13 1373 Orange Newport Bay. Comment
  POM48004  Suaeda esteroa I. M. Johnston 1924-8-29 s.n. Orange 2.5 miles north of Balboa. Comment
  RSA758778  Suaeda esteroa Anstruther Davidson 1914-10-1 2987 Orange Newport Comment
  UCSB36525  Suaeda esteroa Ferren, Wayne; Whitmore, S. 1980-8-27 Orange Newport Backbay, along Backbay Drive; ca. 1.5 km. NE of Rt. 1, Newport Beach Comment
  UCSB50567  Suaeda esteroa Tilforth, C. 1975-11-6 Orange North-east shoreline of Upper Bay, Newport Beach, Orange County Comment
  RSA5956  Suaeda moquinii C. B. Wolf 1932-7-7 3850 Orange Bryant Ranch, 600 ft. N of Bixby Ave., 1 mi. W. of Hansen Road., (600 ft. N and 100 ft. W. of S.E. corner of N.E. 1/4 of N.E. 1/4 of Sect. 33) Comment
  IRVC25415  Suaeda taxifolia Fred M. Roberts, Wayne Ferren 1987-4-8 3356 Orange Upper Newport Back Bay, west side, North Star Beach, 0.8km N Coney Island, Newport Beach 0 Comment
  POM259488  Suaeda taxifolia A. C. Keller 1937-11-26 s.n. Orange One mile south of Huntington Beach one U.S. Highway alternate 101 Comment
  POM259490  Suaeda taxifolia A. C. Keller 1937-11-26 s.n. Orange Loc. Alt. 20 to 40 ft. on cliffs, Doheny Palisades, Highway 101 Comment
  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
  RSA438588  Suaeda taxifolia N. C. Cooper 1942-11-9 883 Orange Balboa Comment
  RSA438590  Suaeda taxifolia Joseph A. Ewan 1932-7-29 7712 Orange Newport lagoon Comment
  RSA531318  Suaeda taxifolia A. C. Sanders 1990-10-6 10180 Orange Newport Bay, Westcliff Park area on the SW end of the bay, 1km inland of Hwy 1. 1 Comment
  RSA70024  Suaeda taxifolia F. W. Peirson 1924-2-10 4536 Orange Back of beach, Corona del Mar Comment
  SD133110  Suaeda taxifolia A. C. Sanders 1990-10-6 10180 Orange Newport Bay, Westcliff Park area on the southwest end of the bay. 0 Comment
  UCSB44182  Suaeda taxifolia Henneman, J. 1977-5-21 Orange Newport Back Bay Comment
  IRVC19706  Symphoricarpos mollis Karlin G. Marsh 1983-7-5 Orange Bonito Canyon Reservoir; open grassy field. Irvine Comment
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Oct 21 2013
  POM290485  Symphoricarpos mollis Lyman Benson 1947-4-27 12342 Orange Carbon Canyon. Chino-Puente Hills; Pacific Slope Drainage Area. 244 Comment
  RSA0063398  Symphoricarpos mollis Fred M. Roberts 1990-5-8 4620 Orange Chino Hills: Soquel Canyon, c. 1.2 km NNW of Gilman Peak. 240 Comment
  RSA5378  Symphoricarpos mollis B. D. Stark 1932-12-30 4461 Orange Rancho Santa Ana, 1/