Search Results — 2000 specimen records retrieved (1587 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
  POM201767  Abronia maritima L. M. Booth 1932-5-25 1113 Orange Balboa Island, Newport Bay. Comment
  RSA1554  Abronia maritima J. T. Howell 1928-7-10 1087 Orange Capistrano Beach. 0 Comment
  RSA764470  Abronia maritima Doris Bowers 1957-5-16 207 Orange Corona Del Mar 3 Comment
  UC536910  Abronia maritima Lawrence M. Booth 1932-6-15 1189 Orange se Huntington Beach; Seashore Comment
  UCR16336  Abronia umbellata subsp. variabilis Steve Kulju 1974-5-27 s.n. Orange South Coast, Sunset Bay, 1 mile SE of the city of Seal Beach on State Hwy 1 5 Comment
  RSA0028022  Acacia longifolia Fred M. Roberts 2012-9-6 7695 Orange San Joaquin Hills: Buck Gully, Buck Gully Trail, west end near Poppy Street entrance, 2.1 kilometers WNW Pelican Hill summit. 37 Comment
  SEINET947423  Acacia podalyriifolia R. J. Barr 1964-1 64 -588 Orange Roadside near Capistrano Beach 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
  CAS-BOT-BC333256  Acer macrophyllum P. A. Munz; R. D. Harwood 1920-4-23 3730 Orange Santa Ana Mts., Silverado Canon 548 Comment
  RSA16469  Acer macrophyllum Percy C. Everett 1935-6-19 7239 Orange Santa Ana Mts., Trabuco Canyon, 2 6/10 mi. below (W.) summit of truck trail. 915 Comment
  RSA3249  Acer macrophyllum B. D. Stark 1931-6-10 2246 Orange Claymine Canyon north end of Santa Ana Mountains. 244 Comment
  RSA76986  Acer macrophyllum F. W. Peirson 1925-4-11 5736 Orange Silverado Canyon, Santa Ana Mountains. 610 Comment
  UCR192219  Achillea millefolium A. C. Sanders, Fred M. Roberts 2008-5-6 35271 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, upper Limestone Canyon, 2.9 mi. NNW of El Toro 379 Comment
  RSA416203  Achillea millefolium var. californica N. C. Cooper 1944-6-4 1345 Orange San Juan Canyon. 305 Comment
  RSA699744  Achillea millefolium var. californica Fred M. Roberts, David Bramlet 2003-5-15 5875 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, Cristianitos Cyn., 1.41km SSW Gato Gate and 0.35km NNW of SDG&E substation. 122 Comment
  RSA548853  Achnatherum coronatum Fred M. Roberts, Helen Camp 1987-3-10 3231 Orange Casper's Regional Park: San Juan Canyon, north of Hwy 74, ca. 1.9km WSW San Juan Hot Springs. 335 Comment
  RSA734601  Achnatherum coronatum A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35310 Orange Weir Canyon, along fire line/bulldozer cut, c. 1.5 mi. east of Walnut Cyn Reservoir 346 Comment
  SEINET7063467  Achyrachaena mollis A. G. Vestal 1947-3-31 s.n. Orange About 2 miles southeast of Brea. UTM Zone 11, 415283mE, 3750494mN. (WGS84/NAD83). 90 Comment
  UCSB69277  Acmispon maritimus Sanders, A.; Farley, Linda; Roberts, Fred; Bramlet, D. 2008-4-1 Orange Peninsular Range; Santa Ana Mtns.; Lomas de Santiago, upper Hicks Canyon, along haul road, c. 1.75 mi. NE of Rattlesnake Reservoir (El Toro 7.5' Q.) 396 Comment
  UC639077  Acourtia microcephala P. C. Everett 1939-8-5 Orange Anaheim Comment
  UCR193045  Acourtia microcephala A. C. Sanders, Fred M. Roberts 2008-6-17 35485 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, West Loma Ridge Spur Road c. 1 km east of Sheriff's Training Facility and 1.6 km SW of Irvine Lake, between hwys 241 and 261 357 Comment
  UCR230828  Acourtia microcephala Dick Newell, Don Millar 2011-6-14 173 Orange South Coast, San Joaquin Hills, Serrano Ridge on west side of Laguna Canyon 260 Comment
  RSA5304  Adenostoma fasciculatum var. fasciculatum Carl B. Wolf 1932-12-19 1697 Orange Main divide of Santa Ana Mts. between Sierra Peak and Skyline Drive. 762 Comment
  RSA67769  Adenostoma fasciculatum var. fasciculatum G. R. Campbell 1951-5-30 16094 Orange San Juan Canyon, Ortega Hwy, 4 mi. inside west border of Cleveland National Forest 152 Comment
  SEINET3861325 Image available Adiantum capillus-veneris A. C. Sanders, Fred M. Roberts 2008-7-16 35836 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago, Dripping Spring off Limestone Canyon, c. 7.5 mi. ESE of Tustin (El Toro 7.5' Q.).; 0 391 Comment
  UCR240175  Adiantum capillus-veneris R. E. Riefner Jr. 2012-2-23 12- 43 Orange South Coast, city of Laguna Beach, Treasure Island Beach, vicinity of Wesley Drive and South Coast Hwy 1 Comment
  RSA124721  Adiantum jordanii E. K. Balls, Percy C. Everett 1957-11-25 22844 Orange Trabuco Canyon, 1.7 mi W of entrance to Holy Jim Canyon. 671 Comment
  RSA773506  Adiantum jordanii Fred M. Roberts 1999-5-14 5226 Orange Lomas de Santiago: Loma Ridge, Upper Limestone Canyon, 0.7 km NW Bolero Spring and 2.6 km SW Silverado School 490 Comment
  RSA0008824  Adiantum jordanii J. T. Howell 1927-6-24 197 Orange Aliso Canyon, Rancho Santa Ana. 274 Comment
  RSA716088  Aeonium Fred M. Roberts 2006-7-27 6397 Orange San Joaquin Hills: Laguna Beach, Temple Hill, 731 Nyes Place, 1.0km NNE Golf Island. 174 Comment
Read comments
Dec 21 2019
  UCR150907  Agoseris retrorsa Valerie Soza, LeRoy Gross 1999-6-10 513 Orange Santa Ana Mountains, Southwestern extension of Modjeska Peak, off dirt road to summit, off Main Divide Road 1524 Comment
  SEINET241816  Agrostis gigantea J. T. Howell 68 Orange CULTIVATED; Botany Garden, Rancho Santa Ana. 152 Comment
  UCR56319  Agrostis pallens Jeri Hirshberg 1988-6-7 s.n. Orange Santa Ana Mountains, Santa Ana Mountains 275 Comment
  RSA759145  Ailanthus altissima Robert Allen, D. Taylor 2008-7-19 s.n. Orange Eastern arm of Bedford Peak, along North Main Divide Road, 2.2 road miles N of junction with Bedford Road, 5.9 miles N of junction with Maple Springs Road. 1155 Comment
  POM19174  Allium monticola Philip A. Munz, D. Keck 1923-6-14 7095 Orange Santiago Peak. Summit. 1640 Comment
  UCR150911  Allium monticola Valerie Soza, LeRoy Gross 1999-6-10 509 Orange Santa Ana Mountains, Southwestern extension of Modjeska Peak, off dirt road to summit, off Main Divide Road 1524 Comment
  POM6476  Allium praecox Philip A. Munz, L. T. Street, Williams 1919-5-3 2635 Orange Santa Ana River Canyon. Comment
  RSA562756  Allium praecox Steve Boyd, Timothy S. Ross 1992-5-19 7432 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of the wilderness along Lucan Canyon Trail in Lucas Canyon, just upstream from divide with Aliso Canyon. 366 Comment
  RSA7475  Allophyllum glutinosum C. B. Wolf 1933-8-24 5399 Orange Summit of Santiago Peak, Santa Ana Mountains 1731 Comment
  UCR224400  Allophyllum glutinosum Robt. L. Allen, Genevieve K. Walden, Lisa W. Young 2008-6-26 s.n. Orange Santa Ana Mountains, Western Arm of Modjeska Peak, adjacent to the junction of Main Divide Truck Trail and Old Truck Trail up to the summit of Jodjeska Peak 1538 Comment
  SD245425  Allophyllum glutinosum Robert Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49604 Orange Santa Ana Mountains: rocky ravine tributary to San Juan Canyon, along Ortega Highway (74) about 2 miles above San Juan Fire Station. Comment
  POM177826  Alnus rhombifolia Marcus E. Jones 1930-1-26 26226 Orange Wildwood Camp, Santa Ana River. Comment
Read comments
Nov 18 2013
  RSA2074  Alnus rhombifolia C. B. Wolf 1931-3-6 1855 Orange Trabuco Canyon, 1.5 mile below Trabuco Camp Grounds, west slope of Santa Ana Mountains. 610 Comment
  RSA5391  Alnus rhombifolia B. D. Stark 1932-12-30 1717 Orange Rancho Santa Ana. River bottom below Mexican houses. 122 Comment
  RSA581438  Alnus rhombifolia Fred M. Roberts, Gordon Marsh 1932-2-7 4357 Orange Santiago Canyon, Flemming Regional Park, just E of Modjeska at end of paved road, c.a. 3.0 km WSWLaurel Springs. 436 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
  IRVC26735  Aloe Mark A. Elvin, J. Liou, J. Carpenter, J. Nguyen 2004-3-8 3156 Orange UCI Arboretum Southern Coastal 15 Comment
  RSA562809  Aloe arborescens Steve Boyd, Timothy S. Ross 1992-5-20 7481 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of the wilderness in Lucas Canyon. 351 Comment
  RSA5812  Amaranthus albus C. B. Wolf 1932-6-28 3770 Orange Bryant Ranch: along western half of north boundary of 40 acre Valencia orange grove at Bryant Ave. and Hansen Road. 9 Comment
  RSA724072  Amaranthus blitum subsp. emarginatus R. E. Riefner 2006-9-30 6 -458 Orange City of Irvine, San Diego Creek at Alton Pkwy. 45 Comment
  RSA184187  Amaranthus hybridus I. L. Wiggins 1965-11-7 20357 Orange Vacant lot between State College Blvd. and Troy High School Campus, Fullerton. Comment
  RSA93934  Ambrosia acanthicarpa F. W. Peirson 1919-11-8 5275 Orange Road south of Arch Beach. Comment
  UC450974  Ambrosia chamissonis F. A. MacF. 1931-3-1 87 E Orange Laguna Beach Comment
  UCR109969  Ambrosia chamissonis R. D. Goeden, Don W. Ricker 1970-4-29 s.n. Orange South Coast, Newport Beach, NW edge of town between Seashore Dr., Neptune Ave., 56th and 58th Streets 2 Comment
  UCR209660  Ambrosia chamissonis Fred M. Roberts 2008-5-16 6976 Orange South Coast, Dana Point Headlands, Center for Natural Lands Mgmt. Preserve, along north slopes above Dana Strand Beach, 0.8 km west-northwest of the Marine Institute, Dana Point Harbor 45 Comment
  UCR239934  Ambrosia chamissonis O. F. Clarke 2004-4-5 s.n. Orange South Coast, Least Tern Reserve, just north of the mouth of the Santa Ana River, Huntington Beach 4 Comment
  UCSB10368  Ambrosia chamissonis McElwain, Isabelle 1953-4-25 Orange U.S. 101, 2 mi. S of Huntington Beach Comment
  RSA696740  Ambrosia chamissonis var. chamissonis R. H. McArthur 1934-4-7 s.n. Orange Near outlet of Santa Ana River. Comment
  JEPS41035  Ambrosia psilostachya J. Thomas Howell 1927-9-24 3121 Orange at, Santa Ana River bottom Rancho Santa Ana; Santa Ana River 152 Comment
  RSA749681  Ambrosia psilostachya A. C. Sanders, Fred M. Roberts 2008-7-16 35850 Orange Lomas de Santiago, Limestone Canyon 325 Comment
  IRVC21741  Ambrosia psilostachya var. californica Fred M. Roberts 1984-10-18 1429 Orange San Juan Canyon, 2.5km ENE San Juan Guard Station; 4.0km WNW Sitton Peak, Santa Ana Mountains 310 Comment
  POM12449  Ammannia robusta P. A. Munz 1922-9-2 6353 Orange Ponds in Laguna Canyon 46 Comment
  RSA7640  Amorpha californica E. R. Johnson 1933-11-3 s.n Orange Bedford Peak Firebreak and Silverado Motorway at Main Divide. Comment
  UC1137526  Amorpha californica var. californica A. Lewis 1934-5-1 419 Orange Trabuco Canyon Cleveland National Forest, Elsinore Quadrangle 1341 Comment
  CAS-BOT-BC177256  Amorpha fruticosa C. Epling; H. Lewis 1940-4-21 s.n. Orange Hills 6 miles East of San Juan, Capistrano Comment
  LA204903  Amorpha fruticosa Carl Epling; H. Lewis 1940-4-21 sn Orange 6 mi. E of San Juan Capistrano Comment
  CAS-BOT-BC222309  Amsinckia douglasiana C. B. Wolf 1931-3-6 1864 Orange East side of Orange County Park 152 Comment
  JEPS61147  Amsinckia intermedia Alice King 1908-1 Orange Anaheim plain Anaheim Comment
  OBI6061  Amsinckia intermedia Carl B. Wolf 1931-3-6 1864 Orange E side of Orange county Park 152 Comment
  UC537057  Amsinckia intermedia P. A. Munz 1934-3-26 13132 Orange Newport Beach 15 Comment
  IRVC228  Amsinckia menziesii var. intermedia I. L. Wiggins 1966-3-4 20495 Orange Santa Ana Canyon], Riverside Fwy, 4.5mi E Newport Fwy exit; in full sun, [annual grassland]. Anaheim Comment
  UCR191435  Anagallis arvensis A. C. Sanders, Fred M. Roberts 2008-4-8 34729 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, head of Hicks Canyon, S of Santiago Reservoir 351 Comment
  CDA5468  Anagallis monelli J. McNeill 1969-4-1 3035 Orange Upper Newport Bay. Comment
  POM1029  Andropogon glomeratus C. B. Bradshaw s.n. Orange San Joaquin Ranch near Laguna. Comment
  JEPS535  Anemopsis californica Lawrence M. Booth 1932-7-19 1280 Orange Bolsas Creek Comment
  POM2017  Anemopsis californica D. L. Crawford 1916-7-26 s.n. Orange Aliso Canyon. Comment
  RSA232211  Anemopsis californica James Henrickson 1970-7-24 4995 Orange 2 miles NNW or Huntington Beach around small freshwater industrial pond at eastern margin of Bolsa Chica Salt Marsh along Huntington Beach Mesa. 0 Comment
  RSA627755  Anemopsis californica Scott D. White 1998-5-31 6567 Orange UCI Campus; Southwest of Farm School site (now proposed as Student Rec. Ctr., 33 38.5N, 117 50 W 24 Comment
  RSA700044  Anemopsis californica Kenneth Beard s.n. Orange East of S. A. River on Edinger Road 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
  JEPS104670  Anemopsis californica John L. Morrison 1937-6-22 2594 Orange marsh between the road (Hwy 101) and the ocean Comment
  IRVC21319  Anthemis cotula Fred M. Roberts 1982-7-31 788 Orange 0.3km NNW Clemente Survey Mark; 1.2km NNE Civiv Center, San Clemente 220 Comment
  UC536891  Anthemis cotula Lawrence M. Booth 1932-5-15 1200 Orange Santa Ana River Santa Ana River Comment
Read comments
Aug 21 2007
  POM50573  Antirrhinum coulterianum L. R. Abrams 1901-6-15 1790 Orange Santiago Peak trail. Comment
  RSA17218  Antirrhinum coulterianum Carl B. Wolf 1936-6-22 s.n. Orange Santa Ana Mtns, 3 miles above FS gate IN Santiago Canyon, along truck trail to Modjeska Peak. 762 Comment
  RSA594799  Antirrhinum coulterianum Fred M. Roberts, Sandra Leatherman, Brian Leatherman 1994-4-24 4919 Orange Santa Ana Mountains: Lower Hot Springs Canyon, c.a. 1km NNW Juan Rancho Survey Mark. Comment
  RSA697  Antirrhinum coulterianum J. T. Howell 1927-6-5 34 Orange Rancho Santa Ana, near east boundary. 152 Comment
  RSA732240  Antirrhinum coulterianum A. C. Sanders, Fred M. Roberts 2008-4-22 35050 Orange Lomas de Santiago, slopes of south end of Loma Ridge and at head of Limestone Canyon, c. 2.5 miles SW of Silverado. 457 Comment
  UCR229212  Antirrhinum nuttallianum Dick Newell, Peter Wetzel 2011-6-28 200 Orange South Coast, San Joaquin Hills, Willow Canyon, Laguna Coastal Wilderness Park 89 Comment
  UCR274178  Antirrhinum nuttallianum Dick Newell, Don Millar, Nicole Kahal 2015-6-9 409 Orange Peninsular Range; Santa Ana Mtns., foothills west of Black Star Canyon Road, at the end of the service road going to Edison's tower, 2/10 mile south of Lake View Rd. off State Spur 577 Comment
  UCR91395  Antirrhinum nuttallianum Scott D. White 1995-3-9 2541 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, Lower San Juan Picnic Area, just north of Hwy 74 396 Comment
  POM354914  Antirrhinum nuttallianum subsp. nuttallianum M. B. Dunkle 1934-6-18 3994 Orange San Juan Canyon; Southern Coastal 305 Comment
  RSA699  Antirrhinum nuttallianum subsp. nuttallianum J. T. Howell 1927-6-26 214 Orange Claymine Canyon near Sierra Peak. 244 Comment
  RSA588656  Antirrhinum nuttallianum subsp. nuttallianum Fred M. Roberts, Carol A. Roberts 1990-5-23 4651 Orange Santa Ana Mtns: West Fork, Upper Long Canyon, near Main Divide Truck Trail, 4.5 km SE Los Pinos Peak. 756 Comment
  RSA690979  Antirrhinum nuttallianum subsp. subsessile Scott D. White, Michael Honer 2003-5-29 9431 Orange Santa Ana Mountain Foothills: Rancho Mission Viejo. Steep, gen. south-facing slopes above trib. to Trampas Canyon, ca. 0.6 air mi. S of Ortega hwy and ca. ca. 0.5 mi west of Trampas Cyn. 122 Comment
  UC494727  Aphanisma blitoides Philip A. Munz 1932-3-29 12192 Orange base of sea-cliffs Costa Mesa Comment
Read comments
Dec 4 2014
  UCR141341  Aphanisma blitoides Robert DeRuff 1991-1 422 Orange Southern Coast, Newport Beach, Newport Back Bay, east of Delhi Ditch; bluff side of the wooden horse and bike path 6 Comment
  UCR192992  Apium graveolens A. C. Sanders, Fred M. Roberts 2008-6-17 35469 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Agustine staging area near Limestone Canyon Rd. gate at Santiago Cyn Rd. 260 Comment
  RSA226638  Apium graveolens Christopher Davidson, G. Benny 1971-6-15 1545 Orange Brea Canyon, 0.5 mile N of Central Avenue, along Brea Creek, near Brea Oil Co. wells. Comment
  SD254523  Araujia sericifera Eric Focht 2016-7-8 1 Orange South Coast: University of California Research and Extension Center, 7601 Irvine Blvd., Irvine Field 6 (El Toro 7.5'Q) 13 Comment
  UCR7861  Araujia sericifera O. F. Clarke 1968-8-24 s.n. Orange c. 2 mi. east of Yorba Linda turnoff on Santa Ana Canyon Road 101 Comment
  IRVC20647  Arbutus menziesii 1971-4-19 Orange Upper Trabuco Canyon. T.V. St. John Santa Ana Mountains Comment
Read comments
Jan 4 2010
  LA42394  Arctostaphylos glandulosa W. Pequegnat; 1938-3-19 sn Orange Santa Ana Mountains, Holy Jim Trail 1219 Comment
  UCD166561  Arctostaphylos glandulosa Dylan O. Burge 2016-2-23 2090 Orange Santa Ana Mountains, vicinity of Blue Jay Campground, along spur off of Long Canyon Road. 1060 Comment
  UCR273488  Arctostaphylos glandulosa A. C. Sanders, Glen Morrison 2016-8-4 42608 Orange Peninsular Range; Santa Ana Mountains, dirt road off North Main Divide Road (Forest Rte 3S04), north of Los Pinos Spring, 3.87 km NW (286 deg. ) of El Cariso Fire Station 1101 Comment
  CAS-BOT-BC23110  Arctostaphylos glandulosa subsp. glandulosa P. C. Everett 1935-6-19 7232 Orange Santa Ana Mrs., Main divide Motorway, 7 mi. from summit of Santiago Peak. 1280 Comment
  RSA16475  Arctostaphylos glandulosa subsp. glandulosa P. C. Everett 1935-6-19 7232 Orange Main divide motorway. Upper sonoran or arid transition. Sun, W. slope, sandstone. 1280 Comment
  RSA167744  Arctostaphylos glandulosa subsp. glandulosa R. F. Thorne, John Olmsted 1963-7-26 32827 Orange Santa Ana Mts., Cleveland National Forest, Trabugo District. 1189 Comment
  RSA629320  Arctostaphylos glandulosa subsp. glandulosa Jon E. Keeley 1992-6-12 15523 Orange North of El Cariso on road to Los Pinos Pk, 3.8 km north of Hwy 74. 1000 Comment
  RSA629321  Arctostaphylos glandulosa subsp. glandulosa Jon E. Keeley 1992-6-12 15503 Orange Road to Blue Jay Campground, 1 km south of Hotshot Camp, north of Ortega Hwy. (Hwy. 74). 800 Comment
  RSA748171  Arctostaphylos glandulosa subsp. glandulosa K. M. Meyer, A. Townesmith, T. Scott 2007-3-10 2 Orange Cleveland National Forest, 0.5 mi. N Main Divide Rd./NF3S04, off Hwy. 74. Elsinore Mtns., ridge top. 917 Comment
  RSA797659  Arctostaphylos glandulosa subsp. glandulosa R. F. Thorne, E. W. Lathrop 1977-5-18 49762 Orange Santa Ana Mountains: at head of Trabuco Canyon Trail Comment
  RSA545  Arctostaphylos glandulosa subsp. zacaensis J. T. Howell 1927-6-26 222 Orange Claymine Canyon, near Sierra Peak. 457 Comment
  UC1137199  Arctostaphylos glandulosa subsp. zacaensis Willis E. Pequegnat 1940-5-25 Orange Modjeska Springs Cleveland National Forest, Corona Quadrangle, Santa Ana Mts. 457 Comment
  SEINET10940290  Arctostaphylos insularis James S. Miller 2001-12-15 Miller 10650 Orange Rancho Santa Ana Botanic Garden, Santa Ana, CA. Comment
  SEINET10952165  Arctostaphylos otayensis Karen M. Meyer, Andrew Townesmith; Tracy Scott 2007-3-10 Meyer 6 Orange Cleveland National Forest, 2 mi. N. Main Divide Rd./NF3S04, off Hwy. 74. 957 Comment
  SEINET10907244  Arctostaphylos refugioensis James S. Miller 2001-12-15 Miller 10647 Orange Rancho Santa Ana Botanic Garden, Santa Ana, CA. Comment
  RSA18605  Argemone munita subsp. robusta Carl B. Wolf 1937-12-3 9382 Orange Main divide motorway. Between Santiago Peak and Modjeska Peak. 1646 Comment
  UCR132566  Aristea capitata Robert DeRuff 1985-5-6 116 Orange Southern Coast, Newport Back Bay, near the old salt works 3 Comment
  UCD56385  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
  UC1234761  Arnica discoidea Peter H. Raven 1962-5-18 17751 Orange 4.8 mi above gate on Silverado Canyon Truck Trail Silverado Canyon Truck Trail; Santa Ana Mountains 1066 Comment
  RSA539377  Arrhenatherum elatius Fred M. Roberts 1988-6-10 4098 Orange Modejeska Peak, 0.8 km SW summit along crest, UTM 3730400mN, 449100mE, alt. 1548 m. 1548 Comment
  JEPS36923  Artemisia biennis L. M. Booth 1932-7-4 1250 Orange Newport Bay Comment
  RSA776  Artemisia biennis J. T. Howell 1927-10-29 784 Orange Bryant Ranch near Long Beach. 15 Comment
  RSA417250  Artemisia californica Marcus E. Jones 1930-3-3 26497 Orange Santa Ana Mountains. Comment
  RSA417251  Artemisia californica Anstruther Davidson 1907-09 1771 Orange Newport. Comment
  UCR131888  Artemisia californica J. Mallory, V. McCoy 1995-6-30 6454- 63 Orange Santa Ana Mountains: S-facing slope on Windy Ridge, c. 2.5 mi. south of 91 fwy. Comment
  UCR92774  Artemisia californica F. M. Reed 1927-11-10 5640 Orange South Coast, Sulfur Slide Hill in Santa Ana River Canyon 150 Comment
  UCSB52400  Artemisia californica Roberts, Fred 1982-9-15 Orange Santa Ana Mtns.; San Juan Trail, 1.1 km. SE Blue Jay Campground; 2.5 km. SSE Los Pinos Peak 997 Comment
Read comments
Jan 25 2020
  CAS-BOT-BC90268  Artemisia douglasiana John Thomas Howell 1927-8-13 2989 Orange Santa Ana River bottom, Santa Ana Canyon 152 Comment
  HSC79305  Artemisia dracunculus James Henrickson 1973-10-21 8052 Orange Eastern Anaheim, 2 blocks E of Imperial Hwy. along La Palma Ave., just N of Santa Ana River 61 Comment
  CDA23125  Arundo donax Mark A. Elvin, D. G. Kelch 2006-12-9 5310 Orange Southern Coastal; Irvine; San Diego Creek, edge of San Joaquin Marsh, beside University Drive, between Campus Drive and Highway 73. Comment
  UCR235513  Asclepias curassavica R. E. Riefner Jr. 2011-8-19 11- 100 Orange South Coast, city of Laguna Beach, bluff area west of West Street and Pacific Coast Highway 4 Comment
  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
  RSA743383  Asparagus asparagoides Fred M. Roberts 2008-5-27 7002 Orange Dana Point: Dana Point Headlands, CNLM Preserve near NE Gate, 0.5km W Marine Institute (Dana Point Harbor). 75 Comment
  CDA37131  Asphodelus fistulosus Allen Lampman 2012-4-18 PDR# 1630651 Orange Laguna Niguel. 0 Comment
  IRVC178  Asplenium bulbiferum Ray Nesheim 1965-5-11 HS0565 Orange Balboa Island. Southern Coastal Comment
  UCSB52883  Asplenium vespertinum Roberts, Fred; Allen, R. 1983-4-10 Orange Santa Ana Mtns; Upper Hot Springs Canyon, 2.3 km SW Falcon Group Camp; 1.9 km S Los Pinos Peak. 852 Comment
Read comments
Feb 26 2013
  RSA699979  Astragalus Minor Warne 1934-03 s.n. Orange Gypsum canyon Comment
  RSA732060  Astragalus didymocarpus var. didymocarpus A. C. Sanders, Fred M. Roberts 2008-4-8 34749 Orange Peninsular Range: Lomas de Santiago, Loma Ridge, head of Hicks Canyon. S of Santiago Reservoir. 351 Comment
  RSA749637  Astragalus didymocarpus var. didymocarpus D. E. Bramlet 2008-3-31 4135 Orange 282m East Upper Hicks Haul Rd, Trib. to Limestone Cyn. 1km S of Santiago Cyn Rd. 317 Comment
  UCR199730  Astragalus didymocarpus var. didymocarpus Scott D. White, Justin Wood 2008-4-21 11904 Orange Chino Hills, Chino Hills State Park, N of 91 freeway, above Yorba Linda 488 Comment
  CAS-BOT-BC186731  Astragalus gambelianus Scott D. White; Noel Davis 1998-4-24 6338 Orange Santa Ana Mtn. foothills. Mission Viejo Area: Aliso Creek watershed, east of El Toro Rd. just N of jtn. w/ Valley Vista Wy. Large proposed subdivision called Saddleback Meadow 500 Comment
  JEPS54846  Astragalus trichopodus var. lonchus John Thomas Howell 1927-6-2 2415 Orange Santa Ana Canyon Rancho Santa Ana; , Santa Ana Canyon 152 Comment
  IRVC18328  Astragalus trichopodus var. lonchus Karlin G. Marsh, S. Watkins 1977-3-30 Orange [Trabuco Canyon], Upper Trabuco Canyon Rd., 3mi from Live Oak Canyon Store; on both sides and on cliff above. Santa Ana Mountains Comment
  SEINET7796213  Astragalus trichopodus var. lonchus E. A. Bourdo 1975-7-25 s.n. Orange Crest of hills above Niguel Beach Comment
  RSA0042736  Astragalus trichopodus var. trichopodus David Barrios 1991-5-8 35 Orange 1500 ft. Northwest of Fairmont Ave and Quail cir., Yorba Linda. 365 Comment
  SD234358  Atriplex T. B. Salvato Salvato, Katie Kurtz, Mitch Provance. 2006-3-19 1906 Orange South Coast: Irvine, San Diego Creek flood control channel, between Campus Drive and Michelson Drive (Tustin 7.5' Q) 6 Comment
  RSA737374  Atriplex R. E. Riefner 2006-10-19 06 -546 Orange City of Lake Forest, 0.5 mile N of Alton Pwy on E side of SR 241. 230 Comment
  CDA2882  Atriplex amnicola R. E. Riefner Jr. 2006-4-17 06 -155 Orange Upper Newport Bay, near Bayview Way and Bayview Place. Comment
  RSA737899  Atriplex amnicola R. E. Riefner 2006-4-25 08 -118 Orange City of San Clemente, vicinity of Camino de Los Mares and Calle Nuevo. 45 Comment
  RSA743665  Atriplex amnicola R. E. Riefner 2007-9-11 7 -378 Orange City of San Juan Capistrano, vicinity of San Juan Creek road and Paseo Christina. 34 Comment
  SBBG122001  Atriplex amnicola R. E. Riefner 2006-4-17 06 -155 Orange near Bayview Way and Bayview Place, upper Newport Bay 6 Comment
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Dec 13 2012
  UC1930115  Atriplex amnicola R. E. Riefner Jr. 2008-5-25 08 -118 Orange City of San Clemente, vicinity of Camino de Los Mares and Calle Nuevo. Comment
  RSA65401  Atriplex californica F. W. Peirson 1923-3-25 3414 Orange Aliso Creek, near Laguna Beach. Comment
  POM47599  Atriplex canescens I. M. Johnston 1924-8-29 s.n. Orange Corona Del Mar Comment
  RSA422250  Atriplex canescens L. M. Booth 1932-7-4 1249 Orange W side of inland arm of Newport Bay. 3 Comment
  RSA452452  Atriplex canescens Albert J. Perkins 1909-7-4 s.n. Orange Laguna Beach. Comment
  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
  UCR240102  Atriplex canescens Dick Newell, Judy Booth 2012-9-26 294 Orange South Coast, Newport Beach, Back Bay Drive at the Salt Dike 3 Comment
  RSA452402  Atriplex coulteri Anstruther Davidson 1908-5-1 1800 Orange Newport Bay Comment
  RSA743559  Atriplex glauca R. E. Riefner 2002-5-4 2 -88 Orange City of Newport Beach, Upper Newport Bay, general vicinity of Bayview Wy. and Bayview Pl. 7 Comment
  UCR154265  Atriplex lentiformis Mark A. Elvin 2004-5-2 3423 Orange Southern Coastal, Irvine: San Joaquin Freshwater Marsh, near Campus and University Drives; 1.7 km (air) NNW UC Irvine campus center 3 Comment
  RSA443841  Atriplex lentiformis subsp. breweri J. W. Johnson 1978-11-8 s.n. Orange Irvine: Coyote Canyon Road & MacArthur Blvd. intersection. Comment
  RSA0028771  Atriplex lentiformis subsp. lentiformis Fred M. Roberts 2009-4-21 7112 Orange Dana Point Headlands: southern cliffs, 0.7 km W Marine Institute at Dana Point Harbor. CNLM Dana Point Preserve. 3 Comment
  JEPS59595  Atriplex leucophylla L. M. Booth 1932-8-5 1347 Orange Newport Bay Comment
  RSA593869  Atriplex pacifica R. E. Riefner, CA Parks Service 1994-5-22 94 -377 Orange San Clemente State Beach, south bluffs Comment
  RSA638190  Atriplex polycarpa Scott D. White 1998-10-15 7185 Orange Yorba Linda: 1/2 mile south of Telegraph Cyn. Between Ohio St. and Fairmont. Proposed for development 152 Comment
  RSA700319  Atriplex rhagodioides Roger Reinke 2003-2-18 s.n. Orange South Coast: Newport Back bay, Big Canyon 30 Comment
  UCR127688  Atriplex rhagodioides D. E. Bramlet 2003-6-17 3466 Orange Upper Newport Bay, Big Canyon, 128 m east of Backbay Drive and 70 m south of the existing maintenance road 8 Comment
  RSA696212  Atriplex rosea Keith E. Hoffmaster 1934-5-31 s.n. Orange Santa Ana. Comment
  UCSB56686  Atriplex rosea Roberts, Jr., Fred 1982-7-31 Orange San Clemente; at end of Calle San Pablo; 1.3 km. E Civic Center 220 Comment
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Feb 2 2020
  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
  SD237407  Atriplex semibaccata T. B. Salvo 2010-9-27 5105 Orange South Coast: Dana Point Headlands, Harbor Point Park, south of Scenic Dr. and Cove Rd., beyond the end of Green Lantern., overlooking Dana Point Harbor. 52 Comment
  UC1714443  Atriplex semibaccata P. A. Munz 1934-3-26 13136 Orange edge of salt marsh Newport Beach Newport Beach 4 Comment
  UCR130494  Atriplex semibaccata R. E. Riefner Jr. 2002-5-4 02- 90 Orange South Coast, Upper Newport Bay, Jamboree Road at Bayview Dr., edge of Newport Beach Q. 21 Comment
  RSA696721  Atriplex semibaccata Anonymous s.n. Orange Santa Ana. Comment
  RSA252  Atriplex serenana J. T. Howell 1927-7-22 459 Orange North of Botany Garden, Rancho Santa Ana. 274 Comment
  POM201963  Atriplex serenana L. M. Booth 1932-7-25 1315 Orange Santa Ana River 2 miles from ocean. Comment
  RSA651748  Atriplex serenana Michael J. Graeser 1988-5-8 30 Orange Orange. Santiago Canyon road. 1 mile north of Chapman Ave. [Across] from Holy Sepulcher Cemetary. Comment
  UC206816 Image available Atriplex serenana var. davidsonii A. Davidson, M. D. Sep 1913 2951 Orange Balboa; ; Balbra Comment
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Feb 22 2012
  CAS-BOT-BC140679  Atriplex suberecta Tom Perring; Tracy Pinckard 1994-3-2 s.n. Orange South Coast: Tustin, Marine Helicopter Station at the corner of Moffett Drive and Jamboree Rd. 11 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
  RSA708217  Atriplex suberecta Mark Elvin 2004-5-2 3424 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
  RSA303593  Atriplex subspicata J. R. Shevock 1972-9-27 s.n. Orange Newport Beach Bay. 3 Comment
  RSA65356  Atriplex truncata F. W. Peirson 1924-8-29 5073 Orange 4 miles south of Santa Ana. Comment
  IRVC29089  Avena barbata Fred M. Roberts 1989-3-17 4204 Orange Aliso Canyon, 3.3km SSE Moulton Pk. Aliso-Wood Canyon Regional Park 30 Comment
  JEPS68451  Avena barbata L. M. Booth 1932-5-12 1040 Orange Newport Bay Comment
  UCD56180  Avena barbata Ira L. Wiggins 1966-3-22 20554 Orange 1/2 mile below entrance to Cleveland National Forest. Floor of Silverado Canyon. Comment
  UCD56188  Avena barbata Ira L. Wiggins 1966-2-18 20450 Orange 1/2 mile west of entrance to Rancho Santa Ana. Near end of Orangethorpe Ave. Comment
  RSA734680  Avena fatua A. C. Sanders, T. B. Salvato 2008-5-13 35336 Orange Lomas de Santiago, Santiago Canyon at mouth of Hangman Tree Canyon and lower Hangman Tree Cyn, c. 1/2 mile below Modjeska Canyon confluence 366 Comment
  UCSB47968  Avena fatua Roberts, Fred 1980-3-3 Orange Hills 1.5 km ENE of Dana Hills High School; Dana Point 85 Comment
  RSA13  Azolla filiculoides John Thomas Howell 1927-7-6 284 Orange Santa Ana River bottom, Rancho Santa Ana 152 Comment
  CHSC26009  Baccharis douglasii James Henrickson 1970-8-22 5292 Orange 2 1/2 miles NNW of Huntington Beach in dry northern part of Bolsa Chica Salt Marsh. 0 Comment
  RSA598135  Baccharis douglasii Brian Fink 1992-10-7 s.n. Orange Huntington Beach, Salt marsh invaded for several years by fresh water Comment
  UCR210317  Baccharis glutinosa A. C. Sanders, Fred M. Roberts, Jutta Burger 2009-10-21 37201 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Canyon near mouth of Limestone Cyn., at Agustine Staging Area 260 Comment
  SD135168  Baccharis glutinosa Brian Fink 1992-10-7 Orange Huntington Beach Comment
  UCR205872  Baccharis malibuensis R. E. Riefner Jr. 2008-7-17 08- 239 Orange Santa Ana Mountains, Irvine Ranch Reserve, Fremont Canyon Conservation Easement, east Fremont Canyon, Black Star SCE Road 574 Comment
  RSA741697  Baccharis malibuensis R. E. Riefner Jr. 2008-6-25 08 -173 Orange Santa Ana Mts., Irvine Ranch Reserve, Fremont Canyon Conservation Easement, east Fremont Canyon, power line access road off Lakeview SCE Rd. 470 Comment
  RSA741698  Baccharis malibuensis R. E. Riefner Jr. 2008-6-25 08 -171 Orange Santa Ana Mts., Irvine Ranch Reserve, Fremont Canyon Conservation Easement, east Fremont Canyon, power line access road off Lakeview SCE Rd. 495 Comment
  CAS-BOT-BC99444  Baccharis pilularis Carl B. Wolf 1934-12-26 6262 Orange so. end of town of San Clemente 15 Comment
  RSA528054  Baccharis pilularis A. C. Sanders 1990-10-6 10200 Orange Newport Bay, North Star County Beach area on the SW end of the bay, ca. 2 km inland of Hwy 1 1 Comment
  RSA5596  Baccharis pilularis B. D. Stark 1933-1-21 4523 Orange San Clemente Comment
  IRVC28769  Baccharis salicifolia Barry S. Nerhus 2006-2-4 1 Orange San Joaquin Marsh; NW Edge of Marsh. Southern Coastal 3 Comment
  POM12441  Baccharis salicifolia Philip A. Munz 1922-9-2 6350 Orange Ponds in Laguna Canyon 46 Comment
  SBBG40584  Baccharis salicifolia C. Ingram 1960-3-29 256 Orange ca. 3 mi above O'Neill Park, Trabuco Cyn Comment
  UC1292590  Baccharis salicifolia subsp. salicifolia C. L. Hitchcock and C. V. Muhlick 1964-3-17 23068 Orange 8 mi e of Yorba Linda (Santa Ana Canyon); Santa Ana Canyon Comment
  UC1532995  Baccharis salicifolia subsp. salicifolia Robert F. Thorne 1975-4-6 45577 Orange Head of Newport Bay Comment
  UCD129475  Baccharis salicifolia subsp. salicifolia P. B. Kennedy 1925-1-12 4 Orange on range, Irvine Ranch. Comment
  SDSU6381  Baccharis salicina D. F. Howe 1945-10-20 1354 Orange Santa Ana river between Orange and Corona. Comment
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Oct 12 2011
  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
  UCR240069  Baccharis salicina Dick Newell, Judy Booth 2012-9-26 289 Orange South Coast, Newport Beach, Back Bay Drive at Big Canyon parking area 3 Comment
  UCR66989  Baccharis salicina A. C. Sanders 1990-10-6 10190 Orange South Coast, Newport Back Bay, SW side at North Star County Beach, SW end of the bay, c. 2 km inland from Hwy 1/ Pacific Coast Hwy 3 Comment
  SD255082  Baccharis salicina R. F. Thorne 1977-11-21 49981 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp. Comment
  UCR267220  Baccharis sarothroides Fred M. Roberts, Sandra L. Leatherman 2008-9-3 7091 Orange Santa Ana River Canyon, YORBA LINDA: intersection of La Palma Ave. and Mercado del Rio Street 135 Comment
  UCR267221  Baccharis sarothroides Fred M. Roberts, Sandra L. Leatherman 2008-9-3 7093 Orange Santa Ana River Canyon, YORBA LINDA: intersection of La Palma Ave. and Mercado del Rio Street 135 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
  UCR247452  Bahiopsis laciniata R. E. Riefner Jr. 2013-4-5 13- 56 Orange Anaheim Hills,vicinity of Hidden Canyon Road at Avenue De Santiago 305 Comment
  UCD97658  Bassia hyssopifolia Ira L. Wiggins 1966-4-1 20576 Orange Railroad embankment near entrance to Rancho Santa Ana. Comment
  RSA184173  Bassia hyssopifolia I. L. Wiggins 1966-4-22 20616 Orange On eroded roadway leading to oilwell, W side of Associated Road, between Yorba Linda Boulevard and Imperial Highway. Comment
  RSA232231  Bassia hyssopifolia James Henrickson 1970-7-25 5079 Orange 3.5 miles NW of Huntington Beach growing along graded inner slope of East Garden Grove-Wintersburg Flood Control Channel near Bolsa Chica Salt Marsh. 2 Comment
  RSA39697  Bassia hyssopifolia E. L. Paddock 1948-7-23 12785 Orange Stockyard near Buena Park. Comment
  CAS-BOT-BC75516  Batis maritima Peter H. Raven 1958-7-5 13559 Orange Just north of Surfside. Comment
  RSA439753  Batis maritima F. R. Fosberg 1930-7-10 S 3184 Orange Anaheim Landing. [Los Angeles Co. on label] 1 Comment
  RSA439754  Batis maritima F. R. Fosberg 1931-8-19 S 5678 Orange Newport Bay. 1 Comment
  SD80954  Batis maritima James Henrickson 1970-7-25 5034 b Orange 3.5 miles northwest of Huntington Beach on sandy margin of Bolsa Bay, 0.25 southeast of Warner Avenue along Pacific Coast Highway 0 Comment
  UC1779705  Batis maritima Rudolf Schmid 1999-7-14 1999 -6 Orange Bolsa Chica Marsh, S of Seal Beach. From the S side of parking lot by HW1. Comment
  UCSB36212  Batis maritima Ferren, Wayne 1980-8-27 Orange In Newport Back Bay W side of Back Bay Drive, ca. 1.5 km. NE of Rt. 1, Newport Beach Comment
  RSA5334  Bebbia juncea B. D. Stark 1933-1-3 4480 Orange Rancho Santa Ana near pear orchard. 122 Comment
  CAS-BOT-BC106424  Bebbia juncea var. aspera B. D. Stark 1929-11-2 651 Orange Along railroad track, Rancho Santa Ana 152 Comment
  UC484167  Bebbia juncea var. aspera B. D. Stark 1929-11-2 651 Orange Rancho Santa Ana 152 Comment
  SD143950  Beta vulgaris Scott D. White 1993-3-5 1128 Orange Marine Corps Air Station, southeast of Red Hill Ave. and northeast of Barranca. 14 Comment
  RSA488143  Bidens laevis Fred M. Roberts, Gordon Marsh 1985-10-26 2519 Orange Santa Ana River: adjacent to Huntington Beach: 0.7 km SSW Adams St bridge 4 Comment
  JEPS32526  Bidens pilosa W. L. Jepson 1940-10-6 20181 Orange Horseshoe Bend, Santa Ana Canyon Santa Ana Canyon, Horseshoe Bend Comment
  RSA730988  Bidens pilosa var. pilosa Fred M. Roberts 2006-11-15 6462 Orange Santa Ana Cyn., 1.0 km ENE Imperial Hwy bridge, between La Palma Ave. and Santa Ana River near Big Springs St. 89 Comment
  RSA542343  Bloomeria crocea var. crocea Fred M. Roberts, Carol A. Williams 1988-4-12 3923 Orange Lomas de Santiago: Loma Ridge, 3.3 km NW Bolero Lookout. 475 Comment
  RSA48920  Bloomeria crocea var. crocea Philip A. Munz 1949-5-26 13394 Orange Head of Sierra [Freemont] Canyon, Santa Ana Mountains 732 Comment
  CAS-BOT-BC434509  Boerhavia diffusa E. L. Paddock 1943-6-16 12735 Orange Santa Fe Railroad, Gypsum Station Grounds, just west of crossing east of Gypsum Comment
  JEPS63987  Bolboschoenus maritimus L. M. Booth 1932-5-30 1133 Orange Newport Bay Comment
  UCSB56463  Bolboschoenus maritimus Thorne, Robert 1975-4-6 Orange Head of Newport Bay Comment
  SD127868  Bolboschoenus maritimus subsp. paludosus Richard Marin 1971-5-11 M 71 80 Orange Corner of MacArthur Blvd. and University Drive, Irvine 0 Comment
  UCD140035  Bolboschoenus maritimus subsp. paludosus B. Pitzer; T. Tennant 1997-11-8 3365 Orange Crystal Cove State Park, along Moro Canyon Trail, from beginning to a point ca. 1.75 miles up the canyon. 85 Comment
  RSA0059072  Bolboschoenus robustus CNPS Accuracy Assessment Team 2014-7-7 9342 .1 Orange San Joaquin Freshwater Marsh Reserve. Comment
  UCR151112  Bothriochloa barbinodis Scott D. White, Pam DeVries 1998-12-10 7203 Orange Santa Ana Mtns foothills, Brea: Tonner Canyon and adjacent slope, just east of Hwy 57 crossing 198 Comment
  UCR205990  Bothriochloa barbinodis Adrian Wolf 1997-5-20 009 Orange South Coast, northwest of city of Laguna Beach, 100 ft from Pine Crest Drive reservoir, upslope bank adjacent to the road 152 Comment
  CAS-BOT-BC95400  Bowlesia incana Scott D. White; Noel Davis 1998-4-24 6339 Orange Mission Viejo Area: Aliso Creek watershed, E of El Toro Rd., N of jct. with Valley Vista Way 500 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
  SEINET3156098  Bowlesia septentrionalis E. K. Balls 1950-3-7 14446 Orange Administration Grounds of Rancho Santa Ana Botanic Garden Comment
  UCR149498  Brachypodium distachyon Scott D. White, Michael Honer 2004-5-17 10385 Orange South Coast, City of Laguna Niguel. Ridges and open slopes directly N of the intersection of Crown Valley Parkway and Pacific Island Dr 183 Comment
  UCR223425  Brassica geniculata Dick Newell, Don Millar 2011-2-8 057 Orange Peninsular Range; Santa Ana Mtns., Black Star Coal Mine above Fremont Canyon, along Coal Rd. 475 Comment
  CDA24705  Brassica nigra T. C. Fuller 1962-4-5 8143 Orange East of Highway 101, San Clemente. 0 Comment
  UCR48087  Brassica nigra Jack Easton 1987-4-21 s.n. Orange Southern Coast, Kain property, San Clemente, mouth of Trafalgar Canyon, just behind the beach 30 Comment
  HSC6579  Brassica nigra Anonymous 1961-3-29 Orange Newport Beach above upper Newport Bay Comment
  RSA482937  Brassica rapa Claire Kibbe 1936-07 s.n. Orange Santa Ana Canyon. 762 Comment
  CAS-BOT-BC36767  Brassica rapa Ira L. Wiggins 1965-11-7 20359 Orange Vacant lot between State College Boulevard and Troy High School campus, Fullerton. Comment
  POM322  Brassica rapa J. T. Howell 1928-1-15 805 Orange Near the Ranch House. Rancho Santa Ana. 152 Comment
  UCSB18585  Brassica rapa Reed, Robert 1964-3-26 Orange 150 feet N of corner of Orangewood and Euclid Ave., Anaheim 60 Comment
  CAS-BOT-BC106303  Brickellia californica Helen D. Geis 1902-1-1 523 Orange Santiago Creek Comment
  RSA561494  Brickellia nevinii Steve Boyd, K. A. Boyd 1992-7-9 7656 Orange Northern Santa Ana Mountains, Upper Tin Mine Canyon along Skyline Road, 1 mile below jct with Main Divide Road Comment
  RSA627785  Brodiaea jolonensis Scott D. White 1998-4-9 6265 Orange University of California, Irvine campus: Site of proposed Research Park. Southwest of main campus circle, ca. halfway between Berkeley Avenue and new freeway (Bonita Canyon). 37 Comment
  CAS-BOT-BC144300  Bromus arizonicus Ira L. Wiggins 1966-3-1 20482 Orange Margin of grain field along western edge of campus, California State College at Fullerton. Comment
  POM156460  Bromus carinatus Le Roy Abrams 1903-4-18 3271 Orange Capistrano Comment
  RSA562762  Bromus carinatus Steve Boyd, Timothy S. 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) N into Aliso Canyon. Comment
  RSA5928  Bromus carinatus C. B. Wolf 1932-7-2 3824 Orange Carbon Canyon, 1/8 mile below La Vida Springs 213 Comment
  SD152997  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 (7SO6) north into Aliso Canyon 366 Comment
  CAS-BOT-BC148924  Bromus carinatus var. marginatus Le Roy Abrams 1901-6-1 1844 Orange Santiago Peak. Comment
  POM364007  Bromus catharticus Albert J. Perkins 1920-2-12 s.n. Orange Santa Ana. Comment
  CAS-BOT-BC156003  Bromus diandrus Ira L. Wiggins 1966-2-19 20454 Orange Roadside in Carbon Canyon near Orange County Survey bench mark RCE 7872. Comment
  POM7087  Bromus diandrus P. A. Munz, L. T. Street, G. Williams 1919-5-3 2644 Orange Santa Ana River Canyon. Comment
  UC73785  Bromus diandrus J. Burtt Davy 1902-4-4 Orange Orange Comment
  UCR102005  Bromus diandrus B. G. Pitzer 1997-3-25 3039 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
  UCR100463  Bromus hordeaceus B. G. Pitzer 1996-4-30 2760 Orange South Coast, Upper Newport Bay, Calif. Dept. Fish & Game Ecological Reserve, off (W of) Jamboree Road 6 Comment
  RSA184174  Bromus hordeaceus subsp. molliformis I. L. Wiggins 1966-4-22 20614 Orange Along Associated road between Yorba Linda Boulevard and Imperian Highway. 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
  UCR193601  Bromus madritensis A. C. Sanders, Fred M. Roberts 2008-5-6 35235 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
  UCR144145  Bromus madritensis subsp. madritensis Scott D. White, Amanda Duchardt 2003-4-10 9014 Orange Santa Ana Mountians Foothills, Ridges and E-facing canyons above Trampas Canyon 152 Comment
  RSA699743  Bromus pseudolaevipes Fred M. Roberts, David E. Bramlet 2003-5-15 5876 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, Cristianitos Cyn., 1.41km SSW Gato Gate and 0.35km NNW of SDG&E substation. 122 Comment
  POM286562  Bromus rubens Lyman Benson 1931-3-26 3198 Orange Dana Point. Ocean Bluff Watershed. 61 Comment
  CDA22568  Bromus tectorum J. B. Anderson 1966-4-19 601 Orange Upper Newport Bay. 0 Comment
  RSA0022428  Bromus tectorum R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49786 Orange Santa Ana Mountains: Trabuco Canyon Comment
  UCR42432  Cakile maritima A. C. Sanders 1986-5-31 6525 Orange Southern Coast, Balboa Island at Newport Beach. Dunes at the back edge of the beach, from 6th St. S to the harbor entrance 1 Comment
  RSA737846  Calandrinia breweri R. E. Riefner 2008-4-15 08 -72 Orange Irvine Ranch Reserve, North Irvine Ranch, western middle Freemont Canyon area, Coalmine SCE Rd. 353 Comment
  UCR223960  Calandrinia ciliata Fred M. Roberts 2008-4-9 6860 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
  CAS-BOT-BC438320  Calandrinia ciliata Ira L. Wiggins 1966-3-5 20508 Orange Along Highway S-18, about 4.5 mi. E. of Laguna Beach. Comment
  SD82810  Calandrinia maritima P. A. Munz 1926-4-15 7088 Orange sea-bluffs, Laguna Beach Comment
  SD237519  Callistemon citrinus Mark A. Elvin 2003-2-23 2309 Orange South Coast: Irvine, San Joaquin Marsh along the berm of San Diego Creek. 3 Comment
  CDA5114  Callistemon viminalis R. E. Riefner Jr. 2007-3-18 07 -139 Orange City of Newport Beach, north shore of Newport Bay, North Star Beach, general vicinity of North Star Lane and Polaris Drive. Comment
  RSA739270  Callistemon viminalis R. E. Riefner Jr. 2007-4-1 7 -163 Orange City of Laguna Niguel, Oso Creek, ca. 1.5 miles north from Paseo De Colinas Street on Camino Capistrano Street. 88 Comment
  RSA723963  Callistemon viminalis R. E. Riefner Jr. 2006-11-12 06 -669 Orange City of Newport Beach, urban creek draining into San Diego Creek at confluence with Newport Bay; San Diego Creek at SR-73 overpass. 6 Comment
  RSA0015003  Calochortus catalinae Fred M. Roberts 2008-5-14 6970 Orange Lomas de Santiago: Loma Ridge, 0.1 km W Bee Peak summit and 3.9 km E Rattlesnake Canyon Reservoir dam. Irvine Ranch Conservancy. 515 Comment
  RSA0125887  Calochortus catalinae Fred M. Roberts 2008-5-14 6970 Orange Lomas de Santiago: Loma Ridge, Bee Peak, 0.1 km W summit. 515 Comment
  RSA649054  Calochortus catalinae D. E. Bramlet 2000-4-12 2977 Orange Fremont Canyon near Edison transmission lines. The site is 92m east of the Edison Spur Road and 762m southeast of the Fremont ridge road. The locality is 335m west of Fremont Canyon. 138 Comment
  RSA751326  Calochortus catalinae A. C. Sanders, Fred M. Roberts 2008-5-6 35260 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
  SEINET12057832  Calochortus catalinae Unknown 2000-4-17 2987 Orange 1.9 km W of Blind Canyon & 274 m NE of Irvine Park, 244 m SW of MWD access road 220 Comment
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Oct 13 2017
  RSA649687  Calochortus plummerae R. E. Riefner 2000-6-27 20 -585 Orange NCCP North Ranch Policy Plan Area. E of Main Divide Road and SE from Windy Ridge cypress forest. 556 Comment
  CSUSB398  Calochortus splendens Richard G. Sullivan 1972-4-22 720422 7 Orange Laguna Hills Laguna Hills Comment
  JEPS61716  Calochortus splendens Alice King May 1908 Orange Santa Ana Mts. Comment
  RSA629047  Calochortus splendens Valerie L. Soza, LeRoy Gross 1999-6-10 525 Orange Santa Ana Mountains: Southwestern extension of Modjeska Peak, off dirt road to summit, off Main Divide Road 1555 Comment
  RSA68627  Calochortus splendens Frank W. Peirson 1922-5-18 3061 Orange Santa Ana River 122 Comment
  RSA68633  Calochortus splendens Frank W. Peirson 1924-5-31 4669 Orange 5 miles southeast of Laguna Beach. Comment
  CAS-BOT-BC492703  Calochortus splendens Le Roy Abrams 1901-6-15 1798 Orange Trabuco Canon Comment
  RSA49099  Calochortus splendens Philip A. Munz 1949-5-26 13371 Orange Head of Sierra [Freemont] Canyon, Santa Ana Mountains 762 Comment
  RSA131397  Calochortus weedii var. intermedius E. K. Balls 1958-6-27 23278 Orange Silverado Canyon, Santa Ana Mountains, 2.8 miles E from Silverado Station. 732 Comment
  RSA788903  Calochortus weedii var. intermedius Fred M. Roberts 2008-6-12 7043 Orange Lomas de Santiago: Loma Ridge, ridge north of Shoestring Road, 2.2 km S Irvine Lake dam, Irvine Ranch Land Conservancy. 325 Comment
  RSA788904  Calochortus weedii var. intermedius Fred M. Roberts 2008-6-12 7044 Orange Lomas de Santiago: Loma Ridge, ridge north of Shoestring Road, 2.2 km S Irvine Lake dam, Irvine Ranch Land Conservancy. 325 Comment
  RSA788916  Calochortus weedii var. intermedius Fred M. Roberts 1999-6-10 5238 Orange Lomas de Santiago: Loma Ridge, Agua Chinon Cyn., 1.3 km S Bolero Spring and 2.2 km W Bolero Lookout. 285 Comment
  POM351397  Calycadenia tenella M. B. Dunkle 5379 Orange San Juan Canyon Comment
  RSA749642  Calycadenia tenella D. E. Bramlet 2008-4-15 4178 Orange Hicks Cyn., 301m E Haul Rd, & 1.4km N of the Bee Cyn Access Rd. 206 Comment
  CHSC70486  Calystegia macrostegia R. A. Schlising 1973-6-25 3104 Orange SW of Corona; along dead-end road 2.1 mi SW of junction with Hwy 71. Comment
  CSUSB679  Calystegia macrostegia Cesareo Perez 1971-5-4 Orange South Mesa Drive and Lemon Street in Villa Park Comment
  CHSC19523  Calystegia macrostegia T. Casale 1974-4-11 2 Orange On road shoulder, ca 0.7 mi ne of the Mission San Juan Capistrano on Hwy 74. 36 Comment
  RSA602625  Calystegia macrostegia subsp. arida J. Mallory, V. McCoy 1995-7-3 6454110 Orange Santa Ana Mountains: Blind Canyon, ca. 0.5 mi. E of confluence with Santiago Canyon, on a W-facing slope. N of Irvine Lake. 300 Comment
  RSA650822  Calystegia macrostegia subsp. arida Daniel Truong 1991-5-13 17 Orange Irvine Regional Park, left field adjacent to main entrance, within 1/4 mile radius of 'closed area' Comment
  SD152880  Calystegia macrostegia subsp. arida Steve Boyd, Tim Ross 1992-5-19 7419 Orange Southern Santa Ana Mountains, western edge of the wilderness along Lucas Canyon Trail from access road to Rancho Carrillo. 365 Comment
  SEINET7072487  Calystegia macrostegia subsp. cyclostegia A. G. Vestal 1963-3-27 s.n. Orange About 1.8 miles up Cai+-ada Gobernadora. Coordinate datum: NAD27. Comment
  RSA697157  Calystegia occidentalis subsp. occidentalis R. H. McArthur 1934-4-14 s.n. Orange Laguna Canyon. Hillside. Comment
  UC536955  Calystegia sepium subsp. binghamiae Lawrence M. Booth 1932-8-5 1359 Orange E of Huntington Beach (marsh border). Comment
  POM201723  Calystegia sepium subsp. limnophila L. M. Booth 1932-6-28 1214 Orange Bolsa Chica Comment
  IRVC993  Calystegia soldanella D. W. Bryant 1965-3-27 Orange Pacific Coast Hwy and Beach Blvd. Huntington Beach Comment
  UCR241074  Calystegia soldanella Dick Newell 2013-4-18 326 Orange South Coast, Bolsa Chica State Beach in Huntington Beach, on beach near Pacific Coast Hwy, 0.15 mi. west of Sea Point St., along bike path 5 Comment
  UCR42434  Calystegia soldanella A. C. Sanders 1986-5-31 6527 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
  SEINET6944433  Camissonia campestris W. P. Vestal, A. G. Vestal 1955-3-24 3462 Orange Trabuco Canyon, ca. 5 miles east of El Toro. Comment
  CHSC10115  Camissonia cheiranthifolia subsp. suffruticosa J. W. Johnson 1960-8-18 Orange Newport Beach. Beside Newport Bay by Highway 101. Comment
  NY679611  Camissonia cheiranthifolia subsp. suffruticosa D. D. Keck 1933-9-21 2523 Orange Sunset Beach. Comment
  RSA254974  Camissonia cheiranthifolia subsp. suffruticosa C. W. Tilforth 1975-3-9 1039 Orange Salt water marsh at north-east shoreline of Upper Bay, Newport Beach. Comment
  RSA33598  Camissonia cheiranthifolia subsp. suffruticosa N. C. Cooper 1944-6-3 1326 Orange Balboa Beach, On beach at sea level. 0 Comment
  RSA737479  Camissonia cheiranthifolia subsp. suffruticosa Fred M. Roberts 2008-3-12 6737 Orange Dana Point: Dana Point Headlands CNLM Preserve, western side, c.a. 0.8 km W Marine Institute (Dana Point Harbor). 50 Comment
  RSA784176  Camissonia cheiranthifolia subsp. suffruticosa J. D. Olmsted 1959-7-26 770 Orange Drainage area to Pacific Ocean. S. San Joaquin Hills. Old Moulton Ranch immediately behind about 80-90 S. La Senda St. in Three Arch Bay S of S. Laguna. 30 Comment
  UCR151388  Camissonia cheiranthifolia subsp. suffruticosa Valerie Soza, Kevin Clark, , LeRoy Gross, Will Miller, Fred M. Roberts, G. D. Wallace 2001-4-4 1111 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
  RSA732072  Camissonia hirtella A. C. Sanders, Fred M. Roberts 2008-3-25 34558 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills. 259 Comment
  RSA75439  Camissonia ignota F. W. Peirson 1923-5-6 3505 Orange Trail to Santiago Peak, Santa Ana Ms., from Trabuco Canyon. 1067 Comment
  UCR193415  Camissonia micrantha A. C. Sanders, Fred M. Roberts 2008-6-17 35522 Orange Peninsular Range; Santa Ana Mtns., middle section of Weir Canyon, SSE of Walnut Canyon Reservoir 230 Comment
  UCR209364  Camissonia robusta Fred M. Roberts, Linda Farley 2008-3-28 6830 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
  RSA4784  Camissonia strigulosa James Snow s.n. Orange Bryant Ranch, near Long Beach, Station #7. Plant 3. Comment
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Apr 29 2010
  SDSU3325  Camissoniopsis bistorta Wedberg 1958-3-29 176 Orange Along roadside of Pacific Coast Hwy. south of Laguna and 0.15 mi. north of Dana Pt. Historical Landmark #189. 58 Comment
  UCR237914  Camissoniopsis bistorta Dick Newell, Don Millar 2012-6-5 270 Orange Peninsular Range; Santa Ana Mtns., Loma Ridge East, 0.35 mi. due east of Hicks Haul Rd. 411 Comment
  UCR281558  Camissoniopsis bistorta Mitch Provance, Jeremiah George 2017-3-20 317- 113 Orange West Coyote Hills, Fullerton, vicinity of Utility Access Roads E of Gilbert Street and N of Castlewood Dr., on land previously occupied by oil fields. 137 Comment
  UCSB52877  Camissoniopsis bistorta Roberts, Fred 1983-3-16 Orange Laguna Beach, Sycamore Hills, central ridge, 1.4km NNE jct. El Toro and Laguna Canyon Rds, 5.4km ESE Signal Peak, 177 Comment
  CAS-BOT-BC160446  Camissoniopsis cheiranthifolia subsp. suffruticosa H. E. McMinn 1924-7-19 1291 Orange Sunset Beach Comment
  UC422961  Camissoniopsis cheiranthifolia subsp. suffruticosa D. L. Crawford 742 Orange Aliso Pt. Laguna Beach Region (shore cliffs) Comment
  UC523554  Camissoniopsis cheiranthifolia subsp. suffruticosa David D. Keck 1933-9-21 2523 Orange dunes about town Sunset Beach Comment
  UC537277  Camissoniopsis cheiranthifolia subsp. suffruticosa Lawrence M. Booth 1932-5-25 1114 Orange Balboa Island Newport Bay Comment
  UC635403  Camissoniopsis intermedia H. L. Mason 1926-4-25 2926 Orange 5 mi s Laguna Comment
  CAS-BOT-BC160537  Camissoniopsis lewisii Peter H. Raven 1962-4-28 17490 Orange Lower edge of Cleveland National Forest just above San Juan Guard Station, Santa Ana Mountains 259 Comment
  CAS-BOT-BC37127  Capsella bursa-pastoris Ira L. Wiggins 1966-2-25 20476 Orange Firestone Boy Scout Reservation, east of Brea. Comment
  RSA731753  Capsella bursa-pastoris Fred M. Roberts 2007-11-9 6652 Orange San Juan Canyon along San Juan Creek, about 0.6 km E San Diego FWY. 24 Comment
  LA204281  Cardamine californica C. B. Wolf; 1931-1-30 1826 Orange Santa Ana Mountains, Claymine Canyon 304 Comment
  RSA271144  Cardamine californica var. integrifolia C. W. Tilforth, John Dourley, Walter Wisura 1978-3-10 1501 Orange along Ortega hwy 74, 2 miles NE of San Juan Forest Station, Santa Ana Mtns. Comment
  RSA484623  Cardamine californica var. integrifolia Thekla Mohr 1917-04 3191 Orange Laguna Comment
  HSC94252  Cardionema ramosissimum D. Atwood 1993-3-27 17689 Orange Corona Del Mar State Park along Newport Coast Drive. 0 Comment
  RSA0015954  Cardionema ramosissimum Fred M. Roberts 2012-5-10 7568 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
  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
  RSA594884  Carex praegracilis Fred M. Roberts, D. Stadlander, R. Vizgirdas 1992-4-24 4839 Orange El Toro Marine Base: just west of Borrego Wash, 2.7 kilometers SE Lambert Reservoir dam. 171 Comment
  SEINET10495945  Carissa macrocarpa David B. Dunn 1971-8-13 Dunn 18121 Orange Cultivated plants vicinity of Laguna Beach, CA. Comment
  CAS-BOT-BC281890  Carthamus lanatus T. C. Fuller 1962-6-7 8872 Orange Near the mouth of Brea Canyon, Union oil lease, ca 3 miles N of Brea Comment
  POM223456  Carthamus tinctorius Albert J. Perkins 1936-6-4 s.n. Orange Santa Ana Comment
  UCR140803  Castilleja affinis Robin G. Marushia 2004-4-16 022 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
  JEPS3908  Castilleja affinis subsp. affinis Lawrence M. Booth 1932-5-19 1074 Orange Newport Bay Comment
  CDA41345  Castilleja affinis subsp. affinis Ahlefeld & Pope 1957-4-1 s.n. Orange Irvine Ranch. 0 Comment
  UCR228774  Castilleja exserta Dick Newell, Don Millar 2011-5-10 152 Orange Peninsular Range; Santa Ana Mtns., above east side of Fremont Canyon on service road just below Lakeview Rd. 455 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
  POM8764  Castilleja foliolosa P. A. Munz, R. D. Harwood 1920-4-24 3745 Orange Sierra [Freemont] Canyon, Santa Ana Mts. 366 Comment
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Sep 25 2011
  UCR175052  Castilleja foliolosa Vanessa Lee 2005-4-24 s.n. Orange South Coast, Crystal Cove, Laguna Beach, above Pacific Coast Highway 61 Comment
  UCR52606  Castilleja foliolosa Jeri Hirshberg 1988-6-7 s.n. Orange Santa Ana Mountains, Santa Ana Mountains 275 Comment
  RSA542652  Caulanthus heterophyllus Fred M. Roberts 1988-3-15 3857 Orange Rancho Mission Viejo; Verdugo Canyon, 1.3 km SSW Lucan Survey Marker 201 Comment
  RSA680536  Caulanthus heterophyllus Scott D. White 2003-3-21 8802 Orange Santa Ana Mountain Foothills: Rancho Mission Viejo. East-facing slopes above an unnamed tributary to San Juan Creek. 122 Comment
  RSA749316  Caulanthus heterophyllus Fred M. Roberts 1999-4-22 5191 Orange Lomas de Santiago: ridges between Limestone Cyn. and Santiago Creek wash opposite mouth Williams Cyn., 2.0 km SE Silverado Sch. and 2.2 km NNW Bolero Lookout. 400 Comment
  RSA0054976  Ceanothus Keith E. Hoffmaster 1934-7-15 108 Orange Santa Ana mts. (Santiago can). Comment
  RSA0029943  Ceanothus crassifolius Fred M. Roberts, Sandy Leatherman 2013-2-13 7721 Orange Santa Ana Mountains: Ridge south of central Santiago Canyon, near Joplin Trail, 3.7 km SE Modjeska (town). 800 Comment
  RSA594804  Ceanothus crassifolius Fred M. Roberts 1992-2-26 4835 Orange Santa Ana Mts. Ridge west of Black Star Canyon and north of confluence of Black Star Canyon and Santiago Canyon, 4.3 km ESE Irvine Lake spillway. 353 Comment
  SBBG104029  Ceanothus crassifolius var. crassifolius B. Pitzer, S. Hemstreet 1992-5-21 1949 Orange St Hwy 74, 1 mi uphill from the 2000 ft marker, and to the left ca. 0.1 mi on old paved rd 762 Comment
  SBBG4156  Ceanothus crassifolius var. crassifolius M. Van Rensselaer 1936-7-7 Orange Ortega Hwy (St Hwy 74) Comment
  RSA733958  Ceanothus integerrimus Keith E. Hoffmaster 1936-5-3 716 Orange Santa Ana Mts (Santiago Peak) Comment
  UCR139232  Ceanothus integerrimus Percy C. Everett 1935-6-18 7214 Orange Santa Ana Mtns., summit of Santiago Peak 1732 Comment
  SD255266  Ceanothus integerrimus Robert F. Thorne, E. W. Lathrop 1977-5-18 49742 Orange Santa Ana Mountains: summit of Santiago Peak. 1733 Comment
  POM2821  Ceanothus integerrimus var. puberulus L. R. Abrams 1901-06 1843 Orange Mt. Santiago. Comment
  SBBG4369  Ceanothus leucodermis M. Van Rensselaer 1941-5-30 1674 Orange summit of Ortega Hwy (St Hwy 74) 762 Comment
  SD134389  Ceanothus megacarpus Craig Reiser 1987-6-26 Orange Anaheim, Wallace Ranch near Wier Canyon Road Comment
  CAS-BOT-BC50507  Ceanothus megacarpus var. megacarpus John Thomas Howell 1927-6-26 2609 Orange Claymine Canyon, n. Santa Ana Mts. 701 Comment
  IRVC28916  Ceanothus megacarpus var. megacarpus Fred M. Roberts, Carol A. Roberts 1988-5-12 3963 Orange Anaheim Hills; Upper Deer Cyn, 7.7km W Sierra Peak. Southern Coastal 268 Comment
  RSA790668  Ceanothus oliganthus Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49701 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  UCR234152  Ceanothus oliganthus Dick Newell, Judy Booth 2012-3-30 239 Orange Peninsular Range; Santa Ana Mtns., Maple Springs Road, Cleveland National Forest 258 Comment
  RSA488123  Ceanothus oliganthus var. sorediatus Fred M. Roberts, Karlin G. Marsh 1984-2-15 1186 Orange Caspers Regional Park, south rim of Lucas Canyon along Rancho Carrillo Rd., 4.2 km NE Visitor Center; 0.2 km NW Lucas Survey Marker. 420 Comment
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Sep 17 2014
  UC1071231  Ceanothus papillosus A. Lewis May 1934 424 Orange Trabucco Canyon Cleveland National Forest, Elsinore Quad. Comment
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Nov 15 2008
  JEPS42338  Ceanothus papillosus var. roweanus F. W. Peirson 1923-1 3492 Orange Holy Jim Canon Santa Ana Mountains, SW Riverside Co. 990 Comment
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Oct 2 2011
  RSA790451  Ceanothus papillosus var. roweanus Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49697 Orange Northern Santa Ana Mountains: Sierra Peak Comment
  SD193348  Ceanothus papillosus var. roweanus A. C. Sanders 2005-9-2 31610 Orange Upper Holy Jim Canyon , along the trail in the switchbacks. 970 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
  PASA2514  Ceanothus sorediatus Frank W. Peirson 1925-4-11 Orange Silverado Canyon, Santa Ana Mountains 914 Comment
  LA93871  Ceanothus spinosus D. S. Verity; Fred Lang 1974-2-20 sn Orange hills behind South Laguna Comment
  OBI10341  Ceanothus spinosus Carl B. Wolf 1941-8-15 11151 Orange Santa Ana Mts, W slope Santiago Truck trl to Santiago Pk 1.2 mi above F.S. Gate 610 Comment
  UCR103213  Ceanothus spinosus Scott D. White 1997-2-19 4691 Orange Santa Ana Mtns, above Modjeska Canyon; proposed water tank site 488 Comment
  CAS-BOT-BC402189  Ceanothus tomentosus R. F. Thorne; E. W. Lathrop; W. Wisura 1977-4-27 49676 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. 457 Comment
  RSA588778  Ceanothus tomentosus subsp. olivaceus Fred M. Roberts 1990-4-13 4559 Orange Upper Maybe Canyon near SkylineDrive 0.2 km NE Oak Flat, 2.7 km SSE Sierra Peak. 841 Comment
  RSA731001  Cedrus deodara Fred M. Roberts, B. Allen, D. Olsen 2007-1-19 6504 Orange Beek s Place along Main Divide Rd., 4.1 km NW Pleasant Peak. 852 Comment
  SD248305  Cenchrus longisetus R. E. Riefner Jr. 2013-2-11 13 41 Orange City of Laguna Beach, vicinity of Pacific Coast Highway and Montage Resort Drive. 29 Comment
  UCR100448  Centaurea melitensis B. G. Pitzer 1996-4-30 2783 Orange South Coast, Upper Newport Bay, Calif. Dept. Fish & Game Ecological Reserve, off (W of) Jamboree Road 6 Comment
  UCR140799  Centaurea melitensis Robin G. Marushia 2004-5-4 013 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
  UCR219809  Centaurea melitensis Rebecca T. Vo 2010-6-5 s.n. Orange South Coast, Huntington Beach, Santa Ana River Bike path on west side of the mouth of the Santa Ana River, near Orange County Sanitation Treatment Plant, north of Pacific Coast Hwy and east of Brookhurst St. 1 Comment
  RSA391517  Centaurium venustum Albert J. Perkins 1916-6-15 s.n. Orange Santa Ana, Santiago Canyon. Comment
  CAS-BOT-BC288841  Centromadia parryi subsp. australis Peter H. Raven 1957-9-28 11376 Orange N limits of Surfside 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
  IRVC26685  Centromadia parryi subsp. australis Mark A. Elvin 2003-8-24 3012 Orange San Joaquin Hills, Irvine, UCI, 100m N of the intersection of Shady Canyon Drive and Bonita Canyon Road. Southern coastal 72 Comment
  UC897740  Centromadia parryi subsp. australis Louis C. Wheeler 1932-6-25 849 Orange 5 mi w Santa Ana 22 Comment
  CAS-BOT-BC400156  Ceratophyllum demersum John Thomas Howell 1927-8-13 2987 Orange Santa Ana River bottom, Santa Ana Canon [Canyon] 152 Comment
  RSA660285  Cercocarpus betuloides Orlando Mistretta 1992-6-2 452 Orange Vicinity of Sierra Peak. (Historical Locality). On old roadcut heading down to power lines at 2280'. 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
  UCR99869  Cercocarpus minutiflorus Scott D. White 1996-12-20 4638 Orange Santa Ana Mountains, above Modjeska Canyon; proposed water tank site 488 Comment
  CAS-BOT-BC279501  Chaenactis artemisiifolia R. K. Brummitt 1998-5-23 19996 Orange San Juan Canyon, 22 km NE of San Juan Capistrano on Rte. 74 300 Comment
  CAS-BOT-BC279502  Chaenactis artemisiifolia John Thomas Howell 1927-6-5 2433 Orange Southern Puente Hills in the Santa Ana Canon [Canyon] 152 Comment
  RSA734595  Chaenactis artemisiifolia A. C. Sanders, Fred M. Roberts 2008-5-6 35224 Orange Lomas de Santiago, lower Hicks Canyon, just above tollway (Hwy 241) crossing on Irvine Haul Rd., near debris basin 216 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
  IRVC588  Chaenactis fremontii B. Mawdsley 1965-4-4 Orange Corona del Mar. Newport Beach Comment
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Dec 20 2006
  SEINET2028646 Image available Chaenactis glabriuscula Lawrence M. Booth 1932-5-18 1056 Orange Newport Bay Comment
  UCR92597  Chaenactis glabriuscula F. M. Reed 1926-4-14 5290 Orange South Coast, Arch Beach, near South Laguna 15 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
  UC718397  Chaenactis glabriuscula var. glabriuscula P. C. Everett 1935-5-17 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
  RSA0008379  Chaenactis glabriuscula var. orcuttiana I. M. Johnston 1924-7-10 s.n. Orange 1/2 mile S mouth Aliso Canyon. Comment
  IRVC29873  Chamaesyce Mark A. Elvin, D. Kelch 2006-12-9 5301 Orange Newport Backbay; Big Canyon, lower end. Southern Coastal 3 Comment
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Jul 17 2015
  IRVC29811  Chamaesyce albomarginata Laura D. Lyons, Mark A. Elvin 2006-9-23 425 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
  RSA653184  Chamaesyce albomarginata David Barrios 1991-5-8 28 Orange 1500 ft. Northwest of Fairmont Ave and Quail cir. 365 Comment
  POM9121  Chamaesyce polycarpa var. polycarpa P. A. Munz, R. D. Harwood 1920-4-24 3777 Orange Sierra [Freemont] Canyon, Santa Ana Mountains. 366 Comment
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Sep 17 2011
  IRVC26715  Chasmanthe aethiopica Mark A. Elvin, J. Liou, J. Carpenter, J. Nguyen 2004-3-8 3158 Orange UCI Arboretum Southern Coastal 15 Comment
  IRVC26744  Chasmanthe floribunda Mark A. Elvin, J. Liou, J. Carpenter, J. Nguyen 2004-3-8 3181 Orange UCI Arboretum Southern Coastal 15 Comment
  RSA685788  Cheilanthes J. F. James 1879-4-11 212 Orange San Juan Capistrano Comment
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Nov 22 2013
  IRVC3124  Cheilanthes clevelandii A. S. Boughey 127 Orange [San Juan Canyon], Ortega Hwy, 1mi E San Juan Guard Sta. Santa Ana Mountains Comment
  POM9098  Cheilanthes newberryi P. A. Munz, R. D. Harwood 1920-4-24 3763 Orange Santa Ana Mountains, Sierra [Freemont] Canyon 366 Comment
  RSA685773  Cheilanthes newberryi T. R. Pray 1964-1-1 2052 Orange San Juan Canyon, near first bridge past National Forest entrance Comment
  IRVC15079  Chenopodium album T. W. Mulroy 1973-3-20 Orange Bolsa Chica [Salt Marsh] Comment
  RSA5506  Chenopodium album C. B. Wolf 1932-6-28 3760 Orange Bryant Ranch: along western half of north boundary of 40 acre Valencia orange grove at Bryant Ave. and Hansen Road. 9 Comment
  POM122883  Chenopodium ambrosioides Marcus E. Jones 1924-8-26 s.n. Orange Newport. Comment
  POM201964  Chenopodium ambrosioides L. M. Booth 1932-7-25 1312 Orange Santa Ana River, 1 1/2 miles from ocean. Comment
  RSA423407  Chenopodium ambrosioides Gertrude Dunn 1930-8-9 s.n. Orange Vacant lot 1/2 mi. east of Huntington Beach. Comment
  RSA423411  Chenopodium ambrosioides Albert J. Perkins 1923-6-17 s.n. Orange Sycamore St., Santa Ana. Comment
  UCR193802  Chenopodium berlandieri A. C. Sanders, Fred M. Roberts 2008-7-3 35676 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor 415 Comment
  RSA234525  Chenopodium berlandieri var. sinuatum James Henrickson 1970-7-24 5019 Orange 3 miles NW of Huntington Beach on sandy ''Rabbit'' Island in Bolsa Chica Salt March near Inner Bolsa Bay. 1 Comment
  RSA732153  Chenopodium californicum A. C. Sanders, Fred M. Roberts 2008-4-22 35022 Orange Santa Ana Mtns.: Lomas de Santiago, Limestone Canyon, c. 2 miles SW of Silverado 1200 Comment
  UCD98106  Chenopodium californicum P. B. Kennedy 1925-1-12 9 Orange Irvine Ranch. Comment
  UCR237847  Chenopodium glaucum Mark A. Elvin 2003-2-2 2276 Orange South Coast, San Joaquin Marsh, UCI campus SSE of intersection of Jamboree Blvd. and Campus Dr. 2 Comment
  RSA234486  Chenopodium macrospermum var. farinosum James Henrickson 1970-9-5 5332 Orange 3 miles NW of Huntinton Beach, at southern margin of Bolsa Chica Mesa. 0 Comment
  RSA731958  Chenopodium murale Fred M. Roberts, Sandy Leatherman 2007-11-27 6698 Orange Yorba Linda: drainage channel on east side of Amberdale Dr. ca. 0.3 km S Fairmont Blvd. 118 Comment
  UCR113117  Chenopodium murale B. G. Pitzer 1996-4-30 2778 Orange South Coast, Upper Newport Bay, Calif. Dept. Fish & Game Ecological Reserve, off (W of) Jamboree Road 6 Comment
  RSA650315  Chenopodium murale Norman Willis 1948-2-8 s.n. Orange 2 miles E of Orange 60 Comment
  CAS-BOT-BC497717  Chlorogalum pomeridianum Carl B. Wolf 1932-7-2 3828 Orange Carbon Canyon, 1/2 mi. above LA Vida Spring, upper Sonoran 243 Comment
  RSA450089  Chorizanthe fimbriata J. C. Roos 1965-6-16 s.n. Orange Dana Point near Doheney Beach. Comment
  UCR231161  Chorizanthe fimbriata Dick Newell, Judy Booth 2011-6-26 192 Orange Peninsular Range; Santa Ana Mtns., Long Canyon Rd., NW of Hwy 74, Cleveland National Forest 965 Comment
  UCSB50631  Chorizanthe fimbriata var. fimbriata Roberts, Fred 1982-7-20 Orange Santa Ana Mountains, Main Divide Extension, 2.0km N jct. 74; 1.1km NNW El Cariso Campground 928 Comment
  RSA655025  Chorizanthe procumbens D. E. Bramlet 1994-6-23 s.n. 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
  UCR146880  Chorizanthe procumbens Kathleen Stockwell 2000-6-18 s.n. Orange South Coast, Dana Point Headlands 61 Comment
  UCR223955  Chorizanthe procumbens Fred M. Roberts 2008-4-2 6842 Orange South Coast, Dana Point; Dana Point Headlands, Center for Natural Lands Mgmt. Preserve, south of NE gate along bluff, 0.5 km west of Marine Institute, Dana Point Harbor 45 Comment
  CAS-BOT-BC255246  Chorizanthe staticoides Herbert L. Mason 1926-4-25 2913 Orange 5 miles below Laguna Comment
  POM2200  Chorizanthe staticoides D. L. Crawford 1916-5-5 s.n. Orange Laguna Beach Comment
  POM293154  Chorizanthe staticoides Lyman Benson 1946-5-13 12094 Orange Corona del Mar, Pacfic Ocean drainage area 15 Comment
  POM50441  Chorizanthe staticoides L. R. Abrams 1901-06 1807 Orange Mt. Santiago 915 Comment
  RSA392687  Chorizanthe staticoides M. B. Dunkle 1938-6-23 5378 Orange San Juan Canyon. Comment
  RSA539353  Chorizanthe staticoides Fred M. Roberts, Carol A. Roberts 1988-6-2 4041 Orange Silverado Canyon, Maple Springs Truck Trail, 4.3 km above gate., 1.0km WSW Bald Pk. 825 Comment
  RSA751171  Chorizanthe staticoides D. E. Bramlet 2008-6-3 4285 Orange Upper Borrego Cyn, 136m SE of the access road and 1.5km west of Santiago Cyn Road 433 Comment
  UC205943  Chorizanthe staticoides D. L. Crawford 1916-5-5 Orange Laguna Beach Comment
  UCR266321  Chorizanthe staticoides D. E. Bramlet 1991-5-21 3061 Orange South Coast, Dana Point region 122 Comment
  UCR241918  Chorizanthe staticoides subsp. chrysacantha Fred M. Roberts 2012-5-10 7566 Orange Peninsular Ranges; Coastal Foothills, San Joaquin Hills, Buck Gully, south tributary, north slope Pelican Hill, just north of Pelican Hills Drive, 0.7 km north of Pelican Hill summit 154 Comment
  POM186287  Cicuta bolanderi Joseph A. Ewan 1932-7-29 7729 Orange Large colony (plants 4-8 ft.) in backwater of marsh. Newport Lagoon Comment
  UC218029  Cirsium arvense Ethelbert Johnson 1922-6-12 Orange Xalisco; near Huntington Beach Comment
  UCD130550  Cirsium arvense P. B. Kennedy 1924-2-13 s.n. Orange Huntington Beach District. Comment
  RSA0059655  Cirsium occidentale R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49655 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. Comment
  CAS-BOT-BC280090  Cirsium occidentale var. californicum A. M. White 1974-6-1 1412 Orange About 20 mi. E. of Santa Ana, N of Silverado Canyon Comment
  RSA234513  Cirsium vulgare James Henrickson 1970-7-25 5066 Orange 2 miles N of Huntington Beach along NE margin of Bolsa Chica Salt March. 0 Comment
  UCSB48231  Cirsium vulgare Roberts, Fred 1981-5-2 Orange Mission Viejo; Camino Capistrano, 1.5 km. N Crown Valley Parkway 49 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
  POM153245  Clarkia bottae C. L. Hitchcock 1928-5-5 49 Orange Mouth of Santa Ana Canyon. 150 Comment
  RSA734638  Clarkia bottae A. C. Sanders, Fred M. Roberts, Amber O Neal, D. E. Bramlet 2008-5-9 35307 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, along old dirt road c. 1.25 mi. ESE of Walnut Cyn Reservoir. 340 Comment
  UC58859  Clarkia bottae W. C. Blasdale June 1891 Orange Santiago Canyon Comment
  UCR228790  Clarkia bottae Dick Newell, Don Millar 2011-5-24 159 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Hicks Haul Road 286 Comment
  UCR26961  Clarkia deflexa E. W. Lathrop 1966-5-13 6293 Orange Santa Ana Mountains, 5 mi east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest 400 Comment
  SBBG4969  Clarkia epilobioides J. M. Tucker 1941-5-30 258 Orange Ortega Hwy, 2 to 3 mi E of western boundary of Cleveland National Forest Comment
  UCR132980  Clarkia purpurea Adrian Wolf 2000-4-15 461 Orange Santa Ana Mtns., North Ranch Policy Plan Area, North Baker Canyon Road 335 Comment
  RSA648196  Clarkia purpurea subsp. quadrivulnera Karl Price 1988-5-7 27 Orange An unnamed side canyon within Hot Springs Canyon. It is on Hot Springs Canyon Rd., 0.75 mi. North of Ortega Hwy. (74), 12.6 mi. East of San Juan Capistrano. 305 Comment
  CAS-BOT-BC172351  Clarkia purpurea subsp. viminea Munz; Street; Williams 1919-5-3 2669 Orange Santa Ana River Canyon 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
  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
  UC1136736  Claytonia perfoliata subsp. mexicana A. Lewis 1934-4-1 378 Orange Coal Mine; Corona Quad. 243 Comment
  UCR218458  Claytonia perfoliata subsp. mexicana Robert DeRuff 2008-1 563 Orange South Coast, Upper Newport Bay, below intersection of Back Bay Dr. and East Bluff Dr. 12 Comment
  OBI30216  Claytonia perfoliata subsp. perfoliata L. Fountain 1966-3-23 52 Orange Silverado Cyn at the end of the pavement Comment
  UC1618041  Clematis Donald G. Nelson 1935-4-6 248 Orange just s of boundary of Cleveland National Forest (e of San Juan Capistrano) Comment
  RSA663157  Clematis lasiantha R. E. Riefner 2000-6-1 20 -455 Orange NCCP North Ranch Policy Plan Area. N of Irvine Lake and W of Black Star Cyn; W. of dirt access rd. 473 Comment
  POM183958  Cleome isomeris P. A. Munz 1932-3-29 12188 Orange Costa Mesa. Comment
  POM201932  Cleome isomeris L. M. Booth 1932-5-12 1045 Orange Newport Bay. Comment
  UCSB48362  Clinopodium chandleri Roberts, Fred 1982-4-18 Orange Santa Ana Mtns.: Upper Hot Springs Cyn., 0.1 km SW Falcon Group Camp; 2.0 km SE Los Pinos Peak 1075 Comment
  RSA449086  Cneoridium dumosum Albert J. Perkins 1921-3-15 s.n. Orange Laguna Heights, hill S.W. of oil well. Comment
  RSA542395  Cneoridium dumosum Fred M. Roberts Jr. 1987-3-24 3271 Orange Laguna Beach: Goff Ridge, south of Nyes Place Rd., 0.9km NNE Goff Island. 169 Comment
  RSA0117446  Collinsia concolor A. C. Sanders, Fred M. Roberts 2008-4-22 35026 Orange Santa Ana Mtns.: Lomas de Santiago, Limestone Canyon, c. 2 miles SW of Silverado. 1200 Comment
  POM88657  Collinsia heterophylla Marcus E. Jones 1926-3-13 s.n. Orange Santa Ana Canyon. Comment
  RSA542503  Collinsia heterophylla Bernard Jaroslow 1989-5-29 B- 27 Orange Santiago Canyon: Along the Morrow Trail out of Live Oak Canyon, below truck trail. Comment
  UCSB48210  Collinsia heterophylla var. heterophylla Roberts, Fred 1981-5-3 Orange Hot Springs Canyon; 1.3km NNE San Juan Guard Station; Santa Ana Mtns 276 Comment
  RSA0029945  Comarostaphylis diversifolia subsp. diversifolia Fred M. Roberts, Sandra Leatherman 2013-2-13 7719 Orange Santa Ana Mountains: Ridge south of central Santiago Canyon, near Joplin Trail, 3.7 km SE Modjeska (town). 792 Comment
  IRVC26825  Conium maculatum S. D. White, Brian Leatherman 1997-6-12 5310 Orange E of Dan Juan Capistrano: San Juan Creek between Hwy 74 bridge and Mission Vieja site (ca. 2 to 4 miles E of I-5/Hwy 74 jctn). Southern Coastal 46 Comment
  RSA226637  Conium maculatum Christopher Davidson, G. Benny 1971-6-15 1544 Orange Brea Canyon, 0.5 mile N of Central Avenue, along Brea Creek, near Brea Oil Co. wells. Comment
  IRVC9146  Convolvulus arvensis B. T. Gittins 1966-6-20 1414 Orange 0.5mi N Warner on Euclid Ave.; roadside ditch embankment. Huntington Beach Comment
  IRVC966  Convolvulus arvensis L. McCabe 1965-4-13 Orange Corona del Mar. Newport Beach Comment
  OBI7980  Convolvulus arvensis Kurt R. Neisess 1975-12-20 s.n. Orange In the Fullerton Hills area Comment
  RSA653183  Convolvulus arvensis David Barrios 1991-5-1 16 Orange Yorba Linda, 1500 ft. northwest of Fairmont Ave and Quail Circle., (117 deg. 45' 00'' +4 28 / 33 deg. 52' 37'' + 37 51.5). 365 Comment
  RSA687516  Convolvulus simulans Fred M. Roberts, D. E. Bramlet 2003-4-10 5652 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, ridge between Cristianitos Canyon, 1.17 km SW Gato Gate and 1.02 km W Cristianitos Road. 175 Comment
  UCR158047  Convolvulus simulans Fred M. Roberts, D. E. Bramlet 2003-4-10 5652 Orange Coastal Plains & Basins; South Coastal Plain region, Rancho Mission Viejo: Donna O'Neill Land Conservancy, ridges west of Cristianitos Cyn., 1.17km SW Gato Gate and 1.02km W Cristianitos Rd. 175 Comment
  RSA730987  Conyza bonariensis Fred M. Roberts 2006-11-15 6461 Orange Santa Ana Cyn., 1.0 km ENE Imperial Hwy bridge, between La Palma Ave. and Santa Ana River near Big Springs St. 89 Comment
  IRVC9121  Conyza canadensis B. T. Gittins 1966-9-26 1626 Orange 1613 Sandalwood St.; cultivated yard. Costa Mesa Comment
  RSA835  Conyza canadensis J. T. Howell 1927-9-24 743 Orange Santa Ana Botany Garden 152 Comment
  IRVC25210  Conyza coulteri Fred M. Roberts 1986-10-31 3192 Orange Seal Beach Naval Weapons Station: Anaheim Bay, vicinity of Hog Island. on berm along margin of upper coastal salt marsh. southern coastal 0 Comment
  RSA782120  Conyza coulteri T. B. Salvato 2010-10-27 5139 Orange Dana Point Headlands, Hilltop Park, north of Scenic Dr. and west of Green Lantern St., overlooking Dana Point Harbor 67 Comment
  UCR193774  Conyza floribunda A. C. Sanders, Fred M. Roberts 2008-7-3 35690 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along Windy Ridge Rd. at hairpin turn/road junction below huge sandstone boulder (visible on Google Earth), 1.2 mi. SE of Walnut Canyon Reservoir 285 Comment
  CHSC22354  Cordylanthus maritimus Robert A. Schlising 1972-5-1 3017 Orange Upper Newport Bay, east of Costa Mesa; saltmarsh along Bayside Drive. Comment
  JEPS6032  Cordylanthus maritimus subsp. maritimus L. M. Booth 1932-7-1 1233 Orange Anaheim Creek Comment
  UCR20628  Cordylanthus maritimus subsp. maritimus A. C. Sanders 1974-6-19 939 Orange Upper Newport Bay 3 Comment
  RSA0045606  Cordylanthus pilosus R. H. McArthur 1934-5-19 s.n. Orange Live oak Canyon. Comment
  RSA0084752  Cordylanthus rigidus A. C. Sanders, Joshua M. Brokaw 2008-5-28 35428 Orange Peninsular Range; Santa Ana Mtns.: upper Weir Canyon, along old dirt road west of Eastern Transportation Corridor, 1.65 mi. east of south end of Walnut Cyn Reservoir (Black Star Canyon 7.5' Q.) 372 Comment
  SEINET3079825 Image available Cordylanthus rigidus Kathy Harper 1988-7-16 Orange Cleveland National Forest, on Hwy 74 near El Cariso. Comment
  POM8121A  Cordylanthus rigidus subsp. setiger Philip A. Munz 1923-9-7 7745 Orange Santiago Peak, Santa Ana Mountains. 1646 Comment
  RSA712  Cordylanthus rigidus subsp. setiger J. T. Howell 1927-6-26 218 Orange Claymine Canyon near Sierra Peak 366 Comment
  UC284871  Cordylanthus rigidus subsp. setiger P. A. Munz 1923-9-7 7745 Orange Santiago Peak Santa Ana Mts. 1645 Comment
  CHSC114117  Cordylanthus rigidus subsp. setiger Sandy Leatherman 2011-7-2 2011 -20 Orange Peninsular Ranges; Chino-Puente Hills region: 50 meters west of Carbon Canyon Road and Lions Canyon Road in the City of Brea; UTM Zone 11S; 427559.41E 3756239.97N. 274 Comment
  UCD169163  Cordyline R. E. Riefner Jr. 2012-11-6 12- 532 Orange South Coast,City of Newport Beach, Newport Bay, North Star Beach, near Newport Aquatic Center, White Cliffs Drive/North Star Lane. 9 Comment
  CAS-BOT-BC101296  Corethrogyne filaginifolia Carl B. Wolf 1933-8-24 5394 Orange Santa Ana Mts. Summit of Santiago Pk. 1731 Comment
  RSA752895  Corethrogyne filaginifolia A. C. Sanders, Fred M. Roberts 2008-8-7 35970 Orange lower Weir Canyon, at narrow gorge c. 0.6 mi. above mouth of cyn at Irvine Ranch gate. 185 Comment
  UCSB52401  Corethrogyne filaginifolia Roberts, Fred 1982-9-15 Orange Rancho Mission Viejo; Rte. 74, 6.6 km. by road ENE San Juan Capistrano; 0.9 km. Viejo Peak 93 Comment
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Jan 25 2020
  CLARK-A1528-1790  Corethrogyne filaginifolia var. virgata John C. Roos 1937-9-1 2519 Orange Laguna Beach Comment
  HSC94214  Coronopus didymus D. Atwood 1993-3-29 17727 Orange Huntington Beach along Beach Blvd., 0.5 mi. N of the beach Comment
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Jul 14 2012
  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
  UC1292312  Cotula australis C. L. Hitchcock and C. V. Muhlick 1964-3-17 23067 Orange 8 mi e Yorba Linda; Santa Ana Canyon Comment
  UCR193758  Cotula australis A. C. Sanders, Fred M. Roberts 2008-7-3 35712 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along Weir Canyon Rd. 1.2 mi. SSE of Walnut Canyon Reservoir, below Upper Blind Canyon Rd. 212 Comment
  CAS-BOT-BC287221  Cotula australis Ira L. Wiggins 1966-2-12 20439 Orange Orange grove on W side of State College Blvd, opposite Electra Way, Fullerton Comment
  CAS-BOT-BC287225  Cotula australis Ira L. Wiggins 1966-3-4 20491 Orange Shoulder of Peralta Ave, near junction of Newport Freeway and Riverside Highway Comment
  RSA0045565  Cotula australis Keith E. Hoffmaster 1927-2-12 1143 Orange Santa Ana. Comment
  UCR207795  Cotula coronopifolia O. F. Clarke 2004-4-5 s.n. Orange South Coast, Newport Back Bay 3 Comment
  UCR96897  Cotula coronopifolia Scott D. White 1993-4-28 1287 Orange Pacific slope, Tustin Marine Corps Air Station, NW of Peters Canyon Channel, between Moffett Dr. & Warner Comment
  JEPS37550  Cotula coronopifolia Alice King April 1908 Orange Santa Ana River Comment
  RSA696059  Cotyledon lanceolata Keith E. Hoffmaster 1928-5-29 s.n. Orange San Onofre. CP5. Comment
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Dec 20 2019
  UCR182817  Cotyledon orbiculata R. E. Riefner Jr. 2006-8-25 06- 407 Orange South Coast, Dana Point Harbor, Dana Point Harbor Dr. at Ensenada Pl. 13 Comment
  UCR191443  Crassula connata A. C. Sanders, Fred M. Roberts 2008-4-8 34725 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, head of Hicks Canyon, S of Santiago Reservoir 351 Comment
  UCR215302  Crassula tillaea Fred M. Roberts 2008-3-27 6807 Orange South Coast, Dana Point; Dana Point Headlands, Center for Natural Lands Mgmt. Preserve, 0.8 km west Marine Institute, Dana Point Harbor 75 Comment
  RSA697347  Cressa truxillensis Keith E. Hoffmaster 1926-12-18 s.n. Orange Santa Ana Comment
  POM260477  Cressa truxillensis Ella Carter 1941-08 2 Orange Near coast highway, Newport Beach. Comment
  SD247629  Crocanthemum aldersonii R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49679 Orange Northern Santa Ana Mountains; Coal Canyon [NE of Sierra Peak] 456 Comment
  UC219257  Crocanthemum scoparium var. vulgare Munz and Johnston 1922-5-18 5307 Orange Santa Ana River Canyon, in a side canyon Santa Ana River Canyon 274 Comment
  UC1607992  Croton Donald G. Nelson 1935-3-23 183 Orange hills n Fullerton Comment
  JEPS52469  Croton californicus Alice King Mar. 1908 Orange Anaheim Plain Comment
  LA204938  Croton californicus J. A. Ewan; 1932-7-28 7704 Orange Corona del Mar Comment
  POM201862  Croton californicus L. M. Booth 1932-5-26 1123 Orange Newport Bay Comment
  RSA427  Croton californicus J. T. Howell 1927-6-6 47 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  RSA734600  Croton californicus A. C. Sanders, Fred M. Roberts 2008-5-6 35229 Orange Lomas de Santiago, lower Hicks Canyon, just above tollway (Hwy 241) crossing on Irvine Haul Rd., near debris basin. 216 Comment
  RSA794326  Croton californicus Justin M. Wood 2010-3-31 1443 Orange Santa Ana River floodplain, 0.25 miles north of Coal Canyon wildlife corrridor, west of Green River Golf Course on bluff south of the river. 122 Comment
  UCR46565  Croton californicus B. G. Pitzer, D. C. Hawks 1986-10-21 0352 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
  RSA5806  Croton californicus var. tenuis C. B. Wolf 1932-6-28 3776 Orange Bryant Ranch: along western half of north boundary of 40 acre Valencia orange grove at Bryant Ave. and Hansen Road. 9 Comment
  RSA702203  Croton setiger Fred M. Roberts, David E. Bramlet 2003-6-20 5922 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, tributary to Christianitos Cyn, along Back Road, 1.48 km WNW Sycamore Gate. 189 Comment
  UCR228773  Croton setiger Dick Newell, Don Millar 2011-5-24 166 Orange Peninsular Range; Santa Ana Mtns., above Outdoor Education Center on MWD service road, 1.6 miles NW (311 deg. ) of Irvine Lake dam 244 Comment
  RSA0043358  Crypsis schoenoides Fred M. Roberts, Laura Cohen 2012-10-31 7715 Orange San Joaquin HillsL Laguna Lake 1 (Upper Laguna Lake), north end. Laguna Coast Wilderness Park, ca. 5.1 km ENE Signal Hill. 113 Comment
  POM49205  Cryptantha clevelandii L. R. Abrams 1901-4-13 1780 Orange Laguna, San Joanquin Hills. 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
  RSA0094684  Cryptantha clevelandii var. hispidissima C. B. Wolf 1932-3-8 2687 Orange 1/2 mile N of Corona del Mar, Newport Bay. 8 Comment
  IRVC25394  Cryptantha intermedia Fred M. Roberts 1987-4-3 3343 Orange San Joaquin Hills; Irvine; central Shady Canyon, 2.9km NE Signal Hill. Central coastal 107 Comment
  JEPS22385  Cryptantha intermedia John Thomas Howell 1927-6-5 2435 Orange Santa Ana Canyon 152 Comment
  UC1063976  Cryptantha intermedia A. Lewis 1934-3-1 386 Orange Borrego Canyon Corona Quad. 426 Comment
  POM6631  Cryptantha microstachys P. A. Munz, L. T. Street, G. Williams 1919-5-3 2620 Orange Santa Ana River Canyon. Comment
  RSA699870  Cryptantha microstachys Dorothy Sommis s.n. Orange Trabuco Canyon Comment
  RSA732085  Cryptantha microstachys A. C. Sanders, Fred M. Roberts 2008-3-25 34530 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  UCR191336  Cryptantha microstachys A. C. Sanders, Fred M. Roberts 2008-4-8 34782 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, SSE of Santiago Reservoir on Harding Truck Trail at Dripping Springs Loop, above Limestone Canyon 495 Comment
  UCR191349  Cryptantha microstachys A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34630 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 290 Comment
  UCSB52878  Cryptantha microstachys Roberts, Fred; Marsh, G. 1983-3-30 Orange UC Irvine Ecological Preserve, 0.6 km. SW UCI campus center 43 Comment
  RSA0027425  Cucurbita foetidissima Fred M. Roberts 2013-7-18 7659 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
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Mar 6 2019
  RSA703679  Cucurbita foetidissima Fred M. Roberts, D. E. Bramlet 2004-11-5 6130 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, Cristianitos Cyn., 0.92 km SSW Gato Gate and 0.06 km W Cristianitos Road. 81 Comment
  RSA697187  Cucurbita foetidissima Anonymous 1933-1 s.n. Orange Vacant lot, Santa Ana. 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
  UCR209188  Cucurbita pepo A. C. Sanders, Fred M. Roberts 2008-9-18 36087 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Santiago Creek Canyon c. 0.5-0.8 miles above the highway bridge 300 Comment
  IRVC19540  Cupressus forbesii Karlin G. Marsh 1982-7-30 Orange Coal Canyon, west slope, at Claymont Clay Mine. Santa Ana Mountains Comment
  JEPS46558  Cupressus forbesii John Thomas Howell 1927-1-1 Orange near Sierra Peak; Santa Ana Mountains 701 Comment
  POM11894  Cupressus forbesii Philip A. Munz, I. M. Johnston 1922-5-18 5566 Orange Santa Ana Mts. Santa Ana River Canyon. Alluvial soil along canyon, 2d large canyon south of Orange County line. Comment
  RSA352380  Cupressus forbesii C. B. Wolf 1935-1-2 6279 Orange Slopes of Sierra Peak, west of Claymine Canyon, along road to Peak. 670 Comment
  UC1061653  Cupressus forbesii Howell Orange Santa Anna Mountains Comment
  UC813435  Cupressus forbesii P. A. Munz and I. M. Johnston 1922-5-18 5566 Orange Santa Ana Mts. 457 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
  RSA0020321  Cupressus forbesii T. Keeney 1977-10-27 1100 Orange NW slope of Sierra Peak. Near Gypsum Canyon. 61 Comment
  POM18140  Cuscuta californica P. A. Munz 1923-9-7 7759 Orange Trail Trabuco Canyon to Santago Peak 915 Comment
  RSA797668  Cuscuta californica R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49772 Orange Santa Ana Mountains: Trabuco Canyon. Comment
  UC729867  Cuscuta californica Carl B. Wolf 1932-7-2 Orange .12 mi below Vida Springs; Carbon Canyon 213 Comment
  RSA254969  Cuscuta salina C. W. Tilforth 1975-9-3 1037 Orange Northeast shoreline of Upper Bay, Newport Beach Comment
  UCR18223  Cuscuta salina Chuck Schneibeck 1974-7-9 s.n. Orange South Coast, Newport Back Bay 8 Comment
  POM48019  Cuscuta salina I. M. Johnston 1924-8-29 s.n. Orange 2.5 miles north of Balboa. Comment
  SD234932  Cuscuta subinclusa A. C. Sanders, F. Roberts 2008-7-3 35688 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, along Windy Ridge Rd. at hairpin turn/road junction below huge sandstone boulder, 1.2 mi. SE of Walnut Canyon Resevoir. 274 Comment
  JEPS59787  Cycloloma atriplicifolium Frank W. Peirson 1924-8-29 5061 Orange at bridge near Santa Ana; Santa Ana River Comment
  JEPS59790  Cycloloma atriplicifolium Lawrence M. Booth 1932-7-30 1343 Orange near Huntington Beach; Santa Ana River channel Comment
  RSA65888  Cycloloma atriplicifolium F. W. Peirson 1924-8-29 5061 Orange Santa Ana River, bridge near Santa Ana. Comment
  RSA759248  Cyclospermum leptophyllum Robt. Allen 2008-4-9 s.n. Orange Irvine Valley College, N of N entrance to Student Services building. 45 Comment
  CAS-BOT-BC299753  Cynara cardunculus Carl B. Wolf 1936-7-8 8100 Orange Western end of Newport Bay, Coast Highway 9 Comment
  CAS-BOT-BC190298  Cynodon dactylon Ira L. Wiggins 1965-11-6 20353 Orange Kramer Oil Estates, near well No. 14, near end of county road to Rancho Santa Ana. Comment
  IRVC29808  Cynodon dactylon Laura D. Lyons, Mark A. Elvin 2006-9-23 422 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
  RSA0089222  Cynodon dactylon Fred M. Roberts 2014-4-21 7864 Orange South Coast: San Joaquin Hills: Upper Laguna Lake 1 (upper Laguna Lake), north basin. 113 Comment
  RSA678742  Cynodon dactylon Valerie L. Soza, Kenneth Clark, LeRoy Gross, Will Miller, Fred M. Roberts, Gary D. Wallace 2001-4-4 1112 Orange Anaheim Bay: Seal Beach U. S. Naval Weapons Station, southwestern edge of Seal Beach National Wildlife Refuge. 3 Comment
  RSA759170  Cynodon dactylon A. C. Sanders 2008-5-28 35443 Orange Lomas de Santiago, Bee Flat at mouth of Limestone Canyon 264 Comment
  UCR246515  Cynodon dactylon Fred M. Roberts 2013-5-30 7778 Orange Lomas de Santiago, Santiago Creek Wash, at Santiago Canyon Road bridge, south side, 0.3 km west of the junction of Silverado and Santiago Canyon Roads 299 Comment
  RSA800024  Cyperus eragrostis Justin M. Wood 2011-6-28 4306 Orange South Coast: City of Costa Mesa. Fairview Park, just WNW of Marison Special Education Center. Just W of parking area. 25 Comment
  UCSB52418  Cyperus eragrostis Roberts, Fred; Marsh, K. 1982-10-18 Orange Laguna Beach: east flank of Temple Hill; along east margin of Top of the World School 295 Comment
  RSA0031763  Cyperus involucratus Robert F. Thorne 1977-11-21 50811 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs Comment
  UCSB57539  Cyperus involucratus Roberts, Fred 1984-2-18 Orange Casper's Regional Park; San Juan Canyon, Hwy.74, 4.2 km. NNE Visitor Center along San Juan Creek; 3.1 km. SW San Juan Guard Station 160 Comment
  CAS-BOT-BC114244  Cyperus laevigatus Carl B. Wolf 1932-7-2 3813 Orange Carbon Canyon, 1/8 mi below La Vida Springs. 213 Comment
  RSA92095  Cyperus niger var. capitatus F. W. Peirson 1924-10-19 5231 Orange Wintersberg Comment
  RSA713567  Cyperus odoratus R. E. Riefner Jr. 2005-7-9 5 -551 Orange City of Huntington Beach, Huntington Central Park, Goldenwest St. near Slater Ave. 2 Comment
  CAS-BOT-BC538087  Cyrtomium falcatum R. E. Riefner, Jr. 2012-1-16 12 -5 Orange City of Newport Beach, Corona Del Mar, beach area W of Morning Canyon Rd 1 Comment
  SD260849  Cyrtomium falcatum R. E. Jr. Riefner 2012-2-2 12 19 Orange City of Dana Point, cliff and rocky intertidal area N 0.2 mi of Salt Creek lagoon. 9 Comment
  SD260851  Cyrtomium falcatum R. E. Jr. Riefner 2012-1-16 12 5 Orange City of Newport Beach, Corona Del Mar, beach area west of Morning Canyon Road. 0 Comment
  UC2031959  Cyrtomium falcatum R. E. Riefner Jr. 2012-1-26 12 -11 Orange City of Laguna Beach, Aliso Creek Beach, rocky intertidal area Comment
  RSA539378  Dactylis glomerata Fred M. Roberts 1988-6-9 4080 Orange Santa Ana Mountains: Modjeska Peak, 0.9km SW summit., 3730500mN, 449000mE 1542 Comment
  SD28072  Dactylis glomerata Carl B. Wolf 1932-6-13 3715 Orange Fullerton, Rose Drive 53 Comment
  UCR157694  Dactylis glomerata Adrian Wolf 1998-5-15 269 Orange South Coast, Lambert Reservoir, north of El Toro Marine Corps Air Station 134 Comment
  UCR193769  Dactylis glomerata A. C. Sanders 2008-7-3 35717 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Canyon near mouth of Limestone Cyn., at Agustine Staging Area 260 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
  RSA0046822  Datura stramonium Jason Berkley 1994-5-10 27 Orange Carbon Canyon Regional Park, off face of dam, off the bike trail coming from Rose Dr. Comment
  RSA184130  Datura wrightii I. L. Wiggins 1965-10-27 20303 Orange Roadside and along creek bank, just SW of Los Angeles Co. line, on Brea Canyon Rd. 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
  SD220032  Daucus pusillus Mark A. Elvin 2004-5-2 3409 Orange Irvine; San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7 km (air) NNW UC Irvine campus center. 3 Comment
  UCR223961  Daucus pusillus Fred M. Roberts 2008-4-9 6857 Orange South Coast, Dana Point, Dana Point Headlands, CNLM Preserve, near Outlook 2, 0.7 km west of Marine Institute, Dana Point Harbor 52 Comment
  CAS-BOT-BC299324  Deinandra fasciculata Carl B. Wolf 1932-7-2 3811 Orange Valencia Ave., Olinda opposite the Olinda Pilgrim Church 152 Comment
  CAS-BOT-BC299327  Deinandra fasciculata David D. Keck 1932-9-29 1898 Orange Ca. 5 mi. S. of Santa Ana on road to Newport Beach Comment
  CAS-BOT-BC299329  Deinandra fasciculata Agnes M. Bowman 1899-6-1 s.n. Orange Orange Comment
  RSA749349  Deinandra fasciculata Fred M. Roberts 2008-4-22 6922 Orange Lomas de Santiago: Loma Ridge, Lower Hicks Cyn.,along Haul Rd. near asphalt plant, 2.2 km ENE Rattlesnake Reservoir dam and 2.2 km WNW Bee Peak, Irvine Ranch Conservancy. 188 Comment
  UCR252707  Deinandra fasciculata R. E. Riefner Jr. 2014-5-13 14- 123 Orange South Coast, City of San Clemente, Rancho San Clemente Trail, east c. 0.15 mi. from Ave. Salvador and south c. 0.1 mi. off Utility Access Rd. 239 Comment
  UCR252708  Deinandra fasciculata R. E. Riefner Jr. 2014-6-3 14- 145 Orange City of Laguna Beach, Moulton Meadows, NE 0.1 mi. from Del Mar Ave. and Balboa Ave. along Mentally Sensitive Trail 266 Comment
  UCR224401  Deinandra kelloggii Robt. L. Allen, Linnell R. Allen 2008-7-27 s.n. Orange Santa Ana Mountains, Long Canyon Watershed, along Long Canyon Road, 136 m northwest of juntion with Ortega Hwy (SR74) 724 Comment
  RSA759114  Deinandra kelloggii Robt Allen, Linnell R. Allen 2008-7-27 s.n. Orange Long Canyon Watershed, along Long Canyon Road, 128 m SE of junction with spur to Mystic Oaks (McConville Camp), 0.48 air miles upslope from junction with Ortega Hwy (SR74). 749 Comment
  UCR146881  Deinandra paniculata Kathleen Stockwell 1999-5-30 s.n. Orange South Coast, north of Cristianitos Road, San Clemente 61 Comment
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Jan 8 2013
  UCR254221  Deinandra paniculata R. E. Riefner Jr. 2008-5-19 08- 100 Orange Ladera Ranch, Cecil Pasture at Jerome Road 157 Comment
  RSA0037248  Deinandra paniculata Sandy Leatherman, Melissa Riedel-Lehrke 2013-7-1 2013 -9 Orange Coastal Plains & Basins; South Coastal Plain region: South Orange County, 1.4 miles east of the intersection of Antonio Parkway and Crown Valley Parkway, in the undeveloped foothills. 146 Comment
  RSA769340  Delphinium cardinale E. W. Lathrop 1974-6-27 7406 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  UC527601  Delphinium cardinale B. D. Stark 1931-6-6 2231 Orange Rancho Santa Ana 137 Comment
  RSA3193B  Delphinium cardinale B. D. Stark 1931-6-6 s.n. Orange Rancho Ranta Ana. Comment
  RSA581442  Delphinium parryi Fred M. Roberts 1989-5-12 4361 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
  CAS-BOT-BC116421  Delphinium patens subsp. hepaticoideum C. B. Wolf 1931-3-6 1856 Orange 1/2 mile below Trabuco Camp Ground, Trabuco Canyon, west slope of the Santa Ana Mts. 609 Comment
  POM8761  Delphinium patens subsp. hepaticoideum P. A. Munz, R. D. Harwood 1920-4-24 3749 Orange Santa Ana Mountains, Sierra [Freemont] Canyon 366 Comment
  RSA2091  Dendromecon rigida subsp. rigida Stark 1931-5-23 2229 Orange Santa Ana River Bottom; sw of Ranch houses; Rancho Santa Ana Comment
  RSA5311  Dendromecon rigida subsp. rigida B. D. Stark 1933-1-5 4506 Orange 2 mi. so. of summit of skyline Drive on road along ridge to Santiago Peak. Santa Ana Mts. 1067 Comment
  RSA790667  Dendromecon rigida subsp. rigida Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49702 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  CAS-BOT-BC43187  Descurainia pinnata subsp. brachycarpa Helen D. Geis 1902-3-1 s.n. Orange Santa Ana River. Comment
  POM202601  Descurainia pinnata subsp. halictorum L. M. Booth 1932-5-12 1047 Orange Newport Bay. Comment
  UCR130486  Descurainia pinnata subsp. halictorum R. E. Riefner Jr. 1999-5-22 99- 291 Orange South Coast, city of Dana Point, west of Pacific Coast Hwy, vicinity of Salt Creek Park and Ritz Carlton Hotel 15 Comment
  RSA335  Descurainia pinnata subsp. menziesii J. T. Howell 1928-2-7 827 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  POM369419  Descurainia pinnata subsp. menziesii Albert J. Perkins 1921-3-15 s.n Orange Garden, Santa Ana. Comment
  VVC357  Dicentra chrysantha P. J. MacKay 1990-5-25 s.n. Orange Peninsular Range, Hwy 74 near San Juan Hot Springs 198 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
  HSC22053  Dichelostemma capitatum subsp. capitatum S. M. Clapp 1966-4-7 21 Orange 3 mi. from Modjeska Canyon towards Silverado Canyon 152 Comment
  RSA0127418  Dichelostemma capitatum subsp. capitatum Fred M. Roberts 2016-3-17 8013 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
  RSA681019  Dichelostemma capitatum subsp. capitatum Fred M. Roberts, David E. Bramlet 2003-3-7 5567 Orange Donna O Neill Land Conservancy; West slopes of Christianitos Canyon, Middle Ridge Trail, 0.1km NW Gato Gate. 123 Comment
  RSA652080  Dichelostemma capitatum subsp. capitatum L. M. Anderson 1948-2-27 sn Orange Santa Ana: on NE facing slope of Panorama Heights hill. 188 Comment
  RSA528053  Digitaria ciliaris A. C. Sanders 1990-10-6 10181 Orange Newport Bay, North Star County Beach area on the SW end of the bay, ca. 2 km inland of Highway 1. 1 Comment
  RSA0019267  Dimorphotheca ecklonis Fred M. Roberts, Sandra Leatherman, Jennifer Pareti 2009-4-14 7149 Orange Dana Point Headlands: Dana Strand Beach and slopes above beach, 0.8 km WNW Marine Institute at Dana Point Harbor. CNLM Dana Point Preserve. 3 Comment
  SD251157  Diplachne fusca var. fascicularis Justin M. Wood 2010-9-29 2740 Orange Santa Ana Canyon: Santa Ana River, southwest of Green River Golf Course and north of Hwy 91 and Santa Ana River Trail. (Black Star Canyon ) 128 Comment
  SD225118  Diplacus aurantiacus B. Pitzer 1996-4-30 2801 Orange Crystal Cove State Park, S of City of Irvine on State Hwy 1 (Pacific Coast Hwy). 14 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
  RSA0045521  Diplacus aurantiacus Jeanne Paxton 1934-4-21 s.n. Orange Modjeska Canyon. PR8. Comment
  CHSC42169  Diplacus australis L. A. Hinman 1986-3-22 5 Orange Ca. 6 mi nw of San Juan Capistrano, Bell Canyon, 2 mi n of Hwy 74. Ca. 65 yds e of Bell Creek. 128 Comment
  CAS-BOT-BC150283  Diplacus longiflorus B. Pitzer 1996-4-30 2801 Orange Crystal Cove State Park, S of City of Irvine on State Hwy 1 (=Pacific Coast Hwy.) 15 Comment
  CAS-BOT-BC152059  Diplacus longiflorus John Thomas Howell; Alice Eastwood 1937-4-24 3929 Orange 2 miles east of San Juan Hot Springs Comment
  SD72857  Diplacus longiflorus F. R. Fosberg 1931-6-19 S 5128 Orange Carbon Canyon, Puente Hills, canyon wall Comment
  SD42976  Diplacus puniceus Ethel B. Higgins 1948-3-1 Orange Near San Juan Camp Comment
  CAS-BOT-BC43548  Diplotaxis muralis Ira L. Wiggins 1965-10-25 20302 Orange Along curb way on Dorothy Lane near corner of Lincoln Avenue, Fullerton. Comment
  CAS-BOT-BC43560  Diplotaxis tenuifolia Helen D. Geis 1902-1-1 544 Orange Santa Ana. Comment
  CAS-BOT-BC43568  Diplotaxis tenuifolia Katherine Esau 1931-5-13 s.n. Orange Santa Ana. Comment
  UCR186585  Dipsacus fullonum Robert DeRuff 2001-9-18 516 Orange Southern Coast, Newport Beach, Newport Back Bay, 0.4 mi. north of Big Canyon on Backbay Dr. 1 Comment
  RSA0120555  Distichlis littoralis Elisabeth Norland 1929-3-16 s.n. Orange Huntington Beach. Comment
  RSA0028028  Distichlis spicata Fred M. Roberts 2012-9-6 7701 Orange San Joaquin Hills: Buck Gully, Buck Gully Trail, about 1.8 kilometers NW Pelican Hill summit. 64 Comment
  UCR158165  Distichlis spicata Adrian Wolf 1998-5-27 338 Orange South Coast, Newport Slough, south of oil fields, between Huntington Beach, Costa Mesa and Newport Beach, just south of the channelized mouth of the Santa Ana River 2 Comment
  RSA539349  Dodecatheon clevelandii Fred M. Roberts, Karen Kirtland 1989-2-22 4184 Orange San Joaquin Hills: Upper Buck Gully, 0.7km NE Pelican Hill. 207 Comment
  RSA722384  Drymocallis glandulosa var. wrangelliana Mabel Harvey s.n. Orange Trabuco Canyon. Comment
  RSA124720  Dryopteris arguta E. K. Balls, Percy C. Everett 1957-11-25 22843 Orange Trabuco Canyon, 1.7 mi. w. of entrance to Holy Jim Canyon, 670 Comment
  UCR144741  Dryopteris arguta A. S. Boughey, Pat Pembrook 1965-6-15 1056 Orange Peninsular Ranges; Santa Ana Mountains, 'Saddleback Mountain,' Cleveland National Forest 976 Comment
  UCR193840  Dryopteris arguta A. C. Sanders, Fred M. Roberts 2008-7-16 35862 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hangmans Tree Canyon 379 Comment
  IRVC19376  Dryopteris arguta R. L. Allen 1977-2-13 s.n. Orange Santa Ana Mountains: [San Juan Canyon], Ortega Hwy, roadside 111; next to trail. Comment
  RSA23661  Dryopteris arguta C. B. Wolf, E. R. Johnston 1939-3-16 3398 Orange Santa Ana Mountains: north side of Pleasant's Peak 1219 Comment
  UCSB48105  Dryopteris arguta Fritzke, S.; Roberts, Fred 1982-4-3 Orange Santa Ana Mtns.: San Juan Canyon, 2.4km ENE San Juan Guard Station; 0.3km WSW Bench Mark 1100. 88 Comment
  NY387869  Dudleya R. V. Moran 1948-6-23 3097 Orange North-facing cliff near mouth of Aliso Canyon, south of Laguna Beach. 7.6 Comment
  RSA48065  Dudleya edulis I. M. Johnston 1924-7-10 s.n. Orange 1/2 mile S mouth Aliso Canyon. Comment
  SD87794  Dudleya edulis F. W. Peirson 1924-5-31 4674 Orange 5.0 miles south of Laguna. Comment
  UC933206  Dudleya edulis Reid Moran 1949-7-2 3287 A Orange Aliso Canyon Laguna Beach Comment
  RSA542641  Dudleya edulis Jeni L. Roberts, K. Keane 1988-5-25 3981 Orange Rancho Mission Viejo; Lower Canada Chiquita, 2.5 km SSE Medium Rancho Survey Mark; 105 Comment
  CAS-BOT-BC411401  Dudleya lanceolata P. A. Munz 1919-5-4 2835 Orange Laguna Canyon 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
  IRVC25461  Dudleya lanceolata Fred M. Roberts 1987-4-21 3386 Orange Aliso Creek, Aliso Creek Bike Trail, 3.0km ENE Moulton Peak, Aliso Viejo 73 Comment
  UC420678  Dudleya lanceolata A. R. Davis Orange mtns above Claremont Comment
  UC933285  Dudleya lanceolata Reid Moran 1950-5-12 3386 Orange Newport Bluffs Comment
  RSA542536  Dudleya multicaulis Fred M. Roberts, Kathy Keane 1988-5-25 4000 Orange Rancho Mission Viejo: Lower Canada Gobernadora, ca. 2.4 kn SW Cliff Survey Marker. 110 Comment
  RSA542640  Dudleya multicaulis Fred M. Roberts, Kathy Keane 1988-5-25 3994 Orange Rancho Mission Veijo: Lower Canada Chiquita, 2.0km SSE Medium Rancho Survey Marker. 91 Comment
  SD45412  Dudleya multicaulis Reid Moran 1950-5-24 3412 Orange Brushy slopes of Laguna Canyon 1.5 miles above the mouth. 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
  UCR177286  Dudleya multicaulis Scott D. White, Amanda Duchardt 2003-5-1 9148 Orange Santa Ana Mountains, Slopes above the west side of Canada Gobernadora and adjacent small canyon to the west 122 Comment
  UCR250870  Dudleya multicaulis Dick Newell, Judy Booth, Jutta Burger, Ron Vanderhoff 2014-4-5 360 Orange Peninsular Range; Santa Ana Mtns., Blind Canyon, NW ridge, 0.49 mi. west of Blind Canyon Rd. and 241 Toll Rd. intersection 381 Comment
  CAS-BOT-BC417040  Dudleya pulverulenta John Thomas Howell 1927-7-26 2840 Orange SE fork of Claymine Canyon, N. Santa Ana Mts. 304 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-BC109741  Dudleya stolonifera R. V. Moran 1949-7-2 3286 Orange Laguna Canyon. 1.7 mile below Toro Road Junction, 1.5 mile above canyon mouth. 243 Comment
  CAS-BOT-BC109745  Dudleya stolonifera K. Nakai 1978-4-19 359 Orange Aliso Canyon, ca. 300 m east of California Highway 1. 10 Comment
  RSA0051322  Echidiocarya californica Keith E. Hoffmaster 1935-2-9 841 Orange Santa Ana Mts., near El Toro. Comment
  RSA731754  Echinochloa colona Fred M. Roberts 2007-11-9 6651 Orange San Juan Canyon along San Juan Creek, about 0.6 km E San Diego FWY. 24 Comment
  UCD33247  Echinochloa colona Beecher Crampton 1967-5-23 7957 Orange Orange County, 4 miles east of Irvine, UC South Coast Field Station. Comment
  CAS-BOT-BC197174  Echinochloa crus-galli Ira L. Wiggins 1965-9-26 20254 Orange In Carbon Canyon about 3.5 mi. above its mouth Comment
  CAS-BOT-BC197177  Echinochloa crus-galli Ira L. Wiggins 1965-11-5 20325 Orange On N side of Chapman Avenue near intersection with Kraemer Road 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
  IRVC27752  Echinochloa crus-galli Mark A. Elvin 2004-5-2 3426 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7km (air) NNW UC Irvine campus center. Southern Coastal 3 Comment
  RSA725527  Echinochloa crus-galli Fred M. Roberts 2007-9-11 6575 Orange San Juan Capistrano: San Juan Creek at the confluence with Trabuco Creek. 17 Comment
  UCSB47944  Echinochloa crus-galli Roberts, D. 1980-5-4 Orange Camino Capistrano Rd below bridge (Crown Valley Pkwy) 30 Comment
  RSA184075  Echinochloa crus-galli I. L. Wiggins 1965-10-5 20325 Orange [Near Fullerton.], [33 deg 52'02N, 117 deg 52'30W Comment
  RSA708444  Echinochloa crus-galli Mark Elvin 2004-5-2 3426 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
  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
  JEPS45892  Echinochloa muricata Lawrence M. Booth 1932-7-25 1314 Orange Santa Ana River Channel near Coast Comment
  UCR66983  Echinodorus berteroi D. E. Bramlet 1990-10-17 2063 Orange Delhi Channel at the intersection of Irvine Ave. & Mesa Drive, just west of Newport Beach Golf Course 6 Comment
  UCR67010  Echium candicans A. C. Sanders 1990-10-6 10183 Orange Newport Bay, North Star County Beach Area on the SW end of the Bay, c. 2 km inland of Hwy 1. 3 Comment
  SBBG104111  Ehrendorferia chrysantha B. Pitzer, S. Hemstreet 1992-5-21 1948 Orange St Hwy 74, 1 mi uphill from the 2000 ft marker, and on left ca. 1 mi on old paved Rd 762 Comment
  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
  CHSC109685  Ehrharta calycina Scott D. White; Michael Honer 2003-6-12 9542 Orange Southwestern Santa Ana Mts Foothills: Rancho Mission Viejo. Upper end of Trampas Canyon. 168 Comment
  UC1930109  Ehrharta calycina Scott D. White, Michael Honer 2003-6-12 9542 Orange SOUTHWESTERN SANTA ANA MTS FOOTHILLS: Rancho Mission Viejo. Upper end of Trampas Canyon. Comment
  RSA588991  Ehrharta calycina D. E. Bramlet 1994-6-2 2382 Orange San Joaquin Hills. Emerald Canyon 4.4 kilometers north of Pacific Coast Highway.. Laguna Beach 75 USGS Quad: 37 16 180m N X 4 27 820m E. 226 Comment
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Sep 8 2018
  OBI82200  Ehrharta erecta Unknown 2012-2-1 12 -15 Orange City of Dana Point, Dana Point Harbor, vicinity of Puerto Pl. and Dana Point Harbor Drive 2 Comment
  RSA724039  Ehrharta erecta R. E. Riefner 2004-5-31 4 -194 Orange City of Lake Forest; Serrano Creek, SE of Bake Pkwy. 107 Comment
  UC1543115  Elatine brachysperma Donald G. Nelson 1935-4-15 302 Orange on road from Garden Grove to Costa Mesa converging near Costa Mesa (toward main highway from Santa Ana) Comment
  UCR193790  Eleocharis A. C. Sanders, Fred M. Roberts 2008-7-3 35701 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
  UCR195019  Eleocharis A. C. Sanders, Fred M. Roberts 2008-8-7 35979 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
  RSA799624  Eleocharis acicularis Justin M. Wood 2011-4-12 3664 Orange South Coast: City of Costa Mesa. Fairview Park, just WNW of Marison Special Education Center. 24 Comment
  RSA21065  Eleocharis montevidensis Ramon Valverde 1938-8-4 9439 Orange Rancho Santa Ana, Santa Ana Canyon 122 Comment
  UCSB57546  Eleocharis montevidensis Roberts, Fred 1984-4-14 Orange Santa Ana Mtns.; Chiquito Basin, San Juan Trail, 1.9 km. SW Blue Jay Campground; 2.8 km. S Los Pinos Peak 840 Comment
  RSA365351  Eleocharis montevidensis var. montevidensis Anstruther Davidson 1926-05 s.n. Orange St Ana River Comment
  RSA798192  Eleocharis montevidensis var. parishii Robert F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49571 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74) Comment
  RSA731969  Eleocharis palustris A. C. Sanders, Fred M. Roberts 2008-4-8 34734 Orange Peninsular Range: Lomas de Santiago, Loma Ridge, head of Hicks Canyon. S of Santiago Reservoir. 351 Comment
  CAS-BOT-BC203834  Elymus X hansenii L. R. Abrams 1901-6-1 1814 Orange Santiago Pk. trail Comment
  POM50829  Elymus X hansenii Le Roy Abrams 1901-06 1814 Orange Mt. Santiago Trail Comment
  UCR281490  Elymus condensatus Mitch Provance 2017-6-9 617- 100 Orange Coyote Hills, North Fullerton, East side of Gilbert St., 0.5 miles ENE of intersection with Castlewood Dr. 124 Comment
  RSA591752  Elymus glaucus E. W. Lathrop 1966-4-18 6172 Orange 4 mi NE of Lake Irvine, Black Star Canyon, Cleveland National Forest, Trabuco District. Comment
  RSA699894  Elymus glaucus Fred M. Roberts 2003-5-1 5687 Orange Rancho Mission Viejo: Donna o'Neill Land Conservancy, Cristianitos Cyn., 0.56km SSw. Gato Gate and 0.21km W of Cristianitos Rd. 96 Comment
  UCSB47967  Elymus glaucus Roberts, Fred 1980-5-3 Orange Main Divide Truck Trail; 2.0km WNW of Trabuco Peak; Santa Ana Mountains 1234 Comment
  RSA0011627  Elymus glaucus Rankin s.n. Orange Silverado Comment
  RSA443840  Elymus glaucus subsp. glaucus J. W. Johnson 1977-5-28 s.n. Orange Santa Ana Mountians: Santiago Canyon, Modjeska, Norman Fleming property. Comment
  UCR150908  Elymus glaucus subsp. glaucus Valerie Soza, LeRoy Gross 1999-6-10 526 Orange Santa Ana Mountains, Southwestern extension of Modjeska Peak, off dirt road to summit, off Main Divide Road 1555 Comment
  RSA548877  Elymus multisetus Fred M. Roberts, K. Keane 1988-5-25 4583 Orange Rancho Mission Veijo: Lower Canada Chiquita, 2.0 kilometers SSE Medium Rancho Survey Marker., UTM 3710600m N, 443550m E. 91 Comment
  UCD62743  Elymus trachycaulus subsp. subsecundus Peter H. Raven; R. Snow 1958-7-18 13568 Orange 3.5 miles southeast of Five Pines. Comment
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Nov 15 2013
  CLARK-A1045-1004  Encelia californica George K. Helmkamp 1978-3-4 Orange Newport Beach bluff along Newport Back Bay; Newport Beach 7.5'Q Comment
  POM4950  Encelia californica P. A. Munz 1918-5-4 2225 Orange Laguna Beach Comment
  RSA278305  Encelia californica C. W. Tilforth, Walter Wisura 1979-5-23 1809 Orange Mouth of Aliso Canyon, south Laguna. Comment
  UCR191222  Encelia californica A. C. Sanders 2008-4-29 35128 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
  UCR267184  Encelia californica Fred M. Roberts 2010-3-12 7177 Orange Southeast Coast, DANA POINT HEADLANDS: Harbor Point Park, South of Green Lantern and west of Dana Point Harbor, c. 150 meters SE Interpretive Center 50 Comment
  UCSB12532  Encelia californica Whittington, M. 1962-4-20 Orange South side Newport Back Bay about 0.5 miles south of the salt works, Newport Comment
  RSA25947  Encelia farinosa var. farinosa E. R. Johnson 1941-5-16 s.n. Orange Rancho Santa Ana, River bottom near Old Peak Orchard. Comment
  UCR197698  Epilobium canum A. C. Sanders, Fred M. Roberts 2008-9-18 36084 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge 330 Comment
  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-BC166346  Epilobium canum subsp. canum Carl B. Wolf 1933-8-24 5384 Orange Santa Ana Mts. Along main divide motorway between Bedford Pk. & Santiago Pk. Comment
  POM146315  Epilobium canum subsp. canum Chas H. Quibell 1927-07 s.n. Orange Laguna Beach. Comment
  POM48284  Epilobium ciliatum subsp. ciliatum I. M. Johnston 1924-7-10 s.n. Orange Laguna Canyon. Comment
  POM6436  Epilobium ciliatum subsp. ciliatum P. A. Munz, L. T. Street, G. Williams 1919-5-4 2680 Orange Laguna Canyon. Comment
  RSA799940  Epilobium pygmaeum Justin M. Wood 2011-6-28 4303 Orange South Coast: City of Costa Mesa. Fairview Park, just WNW of Marison Special Education Center. Just W of parking area. 25 Comment
  SD245191  Epipactis gigantea R. F. Thorne, E. W. Lathrop, W. 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
  RSA0031655  Equisetum funstonii Keith E. Hoffmaster 1937-4-11 749 Orange Black Star Can., Santa Ana Mts. Comment
  RSA699856  Equisetum hyemale var. affine Minor Warne 1934-3-1 s.n. Orange Santa Ana River Banks Comment
  IRVC21385  Equisetum laevigatum A. S. Boughey 1968-7-9 406 Orange Santa Ana mtns: upper Santiago Canyon. Peninsular Ranges Comment
  POM50293  Equisetum laevigatum Helen D. Gris 1902-11 s.n. Orange Peat Louds Comment
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Aug 8 2013
  CAS-BOT-BC412826  Eragrostis mexicana subsp. virescens R. F. Thorne; E. W. Lathrop; W. Wisura 1977-7-8 49567 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74) Comment
  UC2042144  Eragrostis mexicana subsp. virescens R. F. Thorne with E. W. Lathrop, W. Wisura 1977-7-8 49567 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74) Comment
  UCD63541  Eragrostis mexicana subsp. virescens Frank W. Gould 1944-6-25 2362 Orange Tournat Ranch, Garden Grove. Comment
  RSA0121317  Eriastrum sapphirinum subsp. dasyanthum Fred M. Roberts, Dave Bontrager 1990-6-5 4677 Orange Rancho Mission Viejo: Lower Canada Gobernidora, ca. 3.0 km W Point Rancho Survey Marker. 104 Comment
  RSA0122941  Eriastrum sapphirinum subsp. dasyanthum Minor Warne 1934-4-28 s.n. Orange Ladd Canyon-Santa Ana Mts. PR8. Comment
  RSA751525  Ericameria palmeri var. pachylepis A. C. Sanders, Fred M. Roberts 2008-8-7 35996 Orange Weir Canyon, along Windy Ridge Rd. at wash crossing, 0.95 mi. SE of Walnut Canyon Reservoir 242 Comment
  RSA38491  Ericameria parishii Percy C. Everett 1945-11-13 11512 Orange Indian Canyon Truck Trail, Indian Canyon, Santa Ana Mts. 960 Comment
  RSA5305  Ericameria parishii B. D. Stark 1933-1-5 4498 Orange 2 mi. so. of summit of skyline Drive on road along ridge to Santiago Peak. Santa Ana Mts. 1067 Comment
  RSA0061165  Ericameria parishii Robt. Allen 2007-8-11 s.n. Orange Santa Ana Mountains region: Silverado Canyon. Along Maple Springs Road (5S04). 1227 Comment
  CAS-BOT-BC293092  Ericameria pinifolia John Thomas Howell 1927-10-22 3158 Orange On n. side of Santa Ana Canon [Canyon] 213 Comment
  SD127546  Ericameria pinifolia Reid Moran, Gordon Marsh and Jack Reveal 1977-6-13 24231 Orange Willow Canyon, tributary of Laguna Canyon 124 Comment
  RSA696782  Erigeron R. H. McArthur 1934-5-19 s.n. Orange Trabuco Canyon. Comment
  RSA0013964  Erigeron foliosus var. foliosus Fred M. Roberts, David E. Bramlet 2008-5-13 6956 Orange Upper Weir Cyn., central fork, 3.5 km NE Roberst Peak 369 Comment
  UCR215289  Erigeron foliosus var. foliosus Fred M. Roberts, D. E. Bramlet 2008-5-13 6956 Orange Santa Ana Mountains, upper Weir Canyon, central fork, 3.5 km NE of Robbers Peak 369 Comment
  RSA171104  Eriodictyon crassifolium Robert F. Thorne 1963-7-26 32836 Orange Tin Mine Canyon above Beek s Spring, Trabuco District, Cleveland National Forest 854 Comment
  UCR910  Eriodictyon crassifolium R. G. Sullivan 1972-4-16 720416- 4 Orange Santa Ana River Channel, river bottom near Coal Canyon Road 122 Comment
  UCD119319  Eriodictyon trichocalyx Raymond A. Evans 1949-4-28 s.n. Orange Mouth of Santa Ana Canyon, near Orange. Comment
  UCSB48016  Eriogonum elongatum Roberts, Fred 1980-9-14 Orange Santa Ana Mtns: San Juan Cyn, 2.5km ENE San Juan Guard Station; 2.1km WSW Lower San Juan Picnic Ground 345 Comment
  JEPS56997  Eriogonum elongatum var. elongatum Lawrence M. Booth 1932-8-9 1370 Orange Newport Bay Comment
  CAS-BOT-BC249759  Eriogonum elongatum var. elongatum James L. Reveal; Caroline G. Reveal 1972-8-6 2845 Orange Along California Highway 74, San Juan Canyon, Santa Ana Mountains, 2.8 miles east of the Cleveland National Forest line and about 14 miles east-northeast of San Juan Capistrano Comment
  POM201759  Eriogonum fasciculatum L. M. Booth 1932-5-18 1057 Orange Newport Bay Comment
  RSA393517  Eriogonum fasciculatum N. C. Cooper 1949-5-1 3943 Orange San Juan Canyon. 610 Comment
  RSA65146  Eriogonum fasciculatum F. W. Peirson 1924-2-10 4527 Orange Corona Del Mar Comment
  UCR159778  Eriogonum fasciculatum subsp. foliolosum Peter A. Bowler 2003-4-26 s.n. Orange Southern Coastal, UC San Joaquin Freshwater Marsh Reserve; bluffs along NW edge of marsh Comment
  SD254072  Eriogonum fasciculatum var. fasciculatum Jim Riley 2013-12-10 135 Orange San Clemente area; 0.29 miles E intersection Avenida Pico and Camino La Pedriza; just N San Diego County line 74 Comment
  SEINET3386503 Image available Eriogonum fasciculatum var. fasciculatum Joseph Ewan 1932-7-28 7705 Orange Corona Del Mar Comment
  SEINET11946392  Eriogonum fasciculatum var. foliolosum S. A. Thompson, Rawlins, J. E. 1988-8-27 5266 Orange Cleveland National Forest, 3.8 mi E of San Juan Hot Springs on CA 74 370 Comment
  RSA759752  Eriogonum gracile A. C. Sanders, Fred M. Roberts, Jutta Burger 2009-10-21 37195 Orange Lomas de Santiago, Limestone Canyon, west of Limestone Canyon Rd. 366 Comment
  RSA5353  Eriogonum parvifolium B. D. Stark 1932-12-9 4423 Orange Canyon 1 mile NW of Laguna Beach. 15 Comment
  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
  RSA783663  Eriogonum virgatum J. D. Olmsted 1959-8-26 832 Orange Black Star Creek: Near Hidden Ranch along Black Star Canyon Road in Black Star Canyon in roadside cliffs. 671 Comment
  CAS-BOT-BC297331  Eriophyllum confertiflorum L. R. Abrams 1901-6-15 1834 Orange Santiago Peak Comment
  RSA5331  Eriophyllum confertiflorum B. D. Stark 1933-1-3 4483 Orange Rancho Santa Ana near pear orchard. 122 Comment
  RSA739703  Eriophyllum confertiflorum A. C. Sanders, Fred M. Roberts 2008-7-3 35667 Orange Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor 365 Comment
  UC507177  Eriophyllum confertiflorum var. confertiflorum L. M. Booth 1932-5-12 1042 Orange Newport Bay Comment
  HSC8468  Erodium botrys S. M. Clapp 1966-4-9 36 Orange Entrance to Black Star Canyon 152 Comment
  RSA703721  Erodium brachycarpum D. E. Bramlet 2003-3-20 3351 Orange Donna O Neill Reserve. NE corner of the reserve 183m west of Cristianitos Rd. and 1.83 km north of the E-W access road. 127 Comment
  HSC8494  Erodium cicutarium J. W. Johnson 1961-3-29 Orange Newport Beach, along upper Newport Bay Comment
  RSA734013  Erodium cicutarium A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34622 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir. 366 Comment
  HSC7249  Erodium moschatum C. L. Hitchcock 1966-3-15 24138 Orange 1/2 mi. E of Brea Comment
  RSA651367  Erysimum capitatum Bob Cochrane 1948-5-9 s.n. Orange Found in hills back of Yorba Linda. Comment
  RSA696171  Erysimum capitatum Keith E. Hoffmaster 1932-4-17 s.n. Orange Santa Ana Mts. [Orange/Riverside Cos] Comment
  IRVC22653  Erysimum capitatum L. Orsak 1973-5-10 Orange Upper Santiago Canyon, top of Joplin Trail, Santa Ana Mountains 1483 Comment
  LA204342  Erysimum capitatum var. capitatum W. Pequegnat; 1938-6-15 sn Orange Santiago Peak, Santa Ana Mts 1734 Comment
  SD136131  Erythranthe floribunda Dylan T. Hannon 1992-6-12 165 Orange Arroyo Trabuco, below Santa Margarita Parkway Bridge Comment
  SD77331  Erythranthe guttata F. W. Pennell, Carl Epling 1940-4-21 25152 Orange wet stream sides, Route 74, 5 miles east of San Luis Capistrano 60 Comment
  RSA734336  Eschscholzia californica A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34625 Orange Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 366 Comment
  RSA785386  Eschscholzia californica Keith E. Hoffmaster 1934-1 402 Orange Santa Ana Comment
  UCR192107  Eschscholzia californica A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35308 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along fire line/bulldozer cut, c. 1.5 mi. east of Walnut Cyn Reservoir 346 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
  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
  IRVC29095  Eschscholzia californica var. peninsularis Fred M. Roberts 1989-3-17 4210 Orange Aliso Canyon, 3.3km SSE Moulton Pk. Aliso-Wood Canyon Regional Park 30 Comment
  RSA16421  Eschscholzia californica var. peninsularis Percy C. Everett 1935-5-19 6873 Orange Santa Ana Mts, Baker Canyon, W Ladd Truck Trail 305 Comment
  RSA312  Eschscholzia californica var. peninsularis J. T. Howell 1927-6-22 194 Orange Botany Garden, Rancho Santa Ana. Comment
  RSA539383  Eschscholzia californica var. peninsularis Fred M. Roberts, Carol A. Roberts 1988-6-9 4076 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
  SEINET7908676  Eucalyptus G. A. Wojciechowski 1967-1 Orange San Juan Capistrano 610 Comment
  UC1608074  Eucalyptus amplifolia Dave Goodward 1987-4-16 5 Orange e. Tustin (1 mi. n.e. of Irvine Blvd./Myford Rd. intersection, Boy Scout Camp in Peters Canyon, Irvine Ranch, s. of tree 4 by 3 trees); Irvine Ranch, Peters Canyon, Boy Scout Camp 121 Comment
  UCR130355  Eucalyptus citriodora A. C. Sanders, Mark A. Elvin 2003-10-12 27312 Orange Southern Coastal Slope, Irvine, UCI Arboretum, UCI campus near intersection of Jamboree Blvd. and Campus Dr. 15 Comment
  RSA0012593  Eucalyptus erythrocorys R. E. Riefner Jr. 2007-9-27 7 -414 Orange City Laguna Niguel, along Forbes Road near Crown Valley Parkway, W of I-5 Freeway. Comment
  UCR191025  Eucrypta chrysanthemifolia A. C. Sanders, Fred M. Roberts 2008-4-22 35060 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge c. 1/4 mi. SE of VABM Bee, above Bee Canyon landfill on road from Hicks Canyon Haul Rd. to Limestone Canyon, c. 3.5 miles WSW of Silverado 493 Comment
  JEPS1720  Eucrypta chrysanthemifolia var. chrysanthemifolia L. M. Booth 1932-5-19 1063 Orange Newport Bay Comment
  RSA657747  Eucrypta chrysanthemifolia var. chrysanthemifolia Ken Greby 1985-4-18 11 Orange alongside Laguna Canyon Rd. 100 m. N of L. C. R., 2.5 km. NE of El Toro Rd. 53 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
  CLARK-A1528-5001  Euphorbia maculata John C. Roos 1937-5-21 2066 Orange Orange Comment
  RSA697587  Euphorbia maculata J. Vlahos 1933-10-15 s.n. Orange Parking along BentonWay. Santa Ana. Comment
  CLARK-A1528-2702  Euphorbia misera John C. Roos 1937-9-1 2548 Orange South Laguna Comment
  POM186306  Euphorbia misera Joseph A. Ewan 1932-7-28 7708 Orange Corona Del Mar Comment
  RSA173967  Euphorbia misera Percy C. Everett 1963-9-25 33210 Orange Dana Point 61 Comment
  RSA734983  Euphorbia peplus A. C. Sanders, T. B. Salvato 2008-5-13 35371 Orange Lomas de Santiago, Santiago Canyon above (S of) mouth of Hangman Tree Canyon, just below Modjeska Canyon confluence 366 Comment
  RSA734349  Euphorbia polycarpa A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34642 Orange Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 396 Comment
  UCR52297  Euphorbia polycarpa B. G. Pitzer, D. C. Hawks 1986-12-17 0381 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, on Santiago Cyn Rd., c. 1.0 mi SW of [Irvine Lake] Santiago Reservoir 305 Comment
  UCR239630  Euphorbia polycarpa var. polycarpa Fred M. Roberts 2012-4-24 7514 Orange San Joaquin Hills, Buck Gully, west of intersection of Ridge Park Road and Newport Coast Drive, 1.5 km west of Signal Peak 179 Comment
  RSA0104828  Euphorbia polycarpa var. polycarpa A. S. Boughey 1968-4-23 211 Orange Santa Ana Mountains: Black Star Canyon; 1/2 mi. below Hidden Ranch. Comment
  RSA0104831  Euphorbia polycarpa var. polycarpa C. Thompson 1965-2-20 s.n. Orange Cameo Shores, Corona Del Mar. Comment
  UCR154276  Euphorbia serpens Mark A. Elvin 2004-5-2 3428 Orange Southern Coastal, Irvine: San Joaquin Freshwater Marsh, near Campus and University Drives; 1.7 km (air) NNW UC Irvine campus center 3 Comment
  RSA151085  Euthamia occidentalis Peter H. Raven 1961-10-15 16856 Orange Dyke along road to Yorba Linda just north of US Hwy 91 114 Comment
  CAS-BOT-BC459215  Euthamia occidentalis John Thomas Howell 1927-10-22 3167 Orange Santa Ana River bottom, Sana Ana Canyon 152 Comment
  RSA91147  Euthamia occidentalis F. W. Peirson 1924-10-19 5243 Orange Wintersberg. Comment
  RSA942  Euthamia occidentalis J. T. Howell 1927-10-22 765 Orange Santa Ana River bottom, Rancho Santa Ana 152 Comment
  RSA696043  Felicia amelloides Anonymous 1933-10-13 s.n. Orange Santa Ana Comment
  RSA0050591  Festuca A. C. Sanders 2008-4-29 35133 Orange Lomas de Santiago, western end of Loma Ridge on road to sheriff s training facility, c. 1.5 mi. SW of Santiago Reservoir 335 Comment
  IRVC28201  Ficus carica A. C. Sanders, Mark A. Elvin 2005-9-2 31606 Orange Upper Holy Jim Canyon, a major tributary of Trabuco Cyn, along trail in the switchbacks. Santa Ana Mountains 970 Comment
  CAS-BOT-BC502074  Ficus microcarpa R. E. Riefner, Jr. 2015-8-30 15 -376 Orange City of Anaheim, Pearson Park, near center of park, N of North Helena St. and West Cypress St 45 Comment
  UC2046888  Ficus microcarpa R. E. Riefner Jr. 2015-8-27 15 -359 Orange City of Newport Beach, Corona del Mar, on Marguerite Ave. between Fifth Ave. and Fourth Ave. Comment
  UC2046890  Ficus microcarpa R. E. Riefner Jr. 2015-8-29 15 -368 Orange City of Rancho Santa Margarita, Trabuco Marketplace, Rancho Santa Margarita Blvd. at Plano Trabuco. Comment
  CAS-BOT-BC474735  Ficus rubiginosa R. E. Riefner, Jr. 2015-8-27 15 -356 Orange City of Laguna Beach, S side of Beach St. E of Broadway Ave (Hwy 133) 7 Comment
  CAS-BOT-BC502065  Ficus rubiginosa R. E. Riefner, Jr. 2011-11-26 11 -161 Orange City of Laguna Beach, E side of Pacific Coast Hwy, N bank of Aliso Creek at Country Club Dr. 11 Comment
  RSA773514  Filago californica Fred M. Roberts 1999-5-3 5204 Orange Lomas de Santiago: ridge between Limestone Canyon and Santiago Canyon Wash, 0.4 km SE Silverado School, and 3.9 km Bolero Lookout 351 Comment
  UCR192469  Filago californica A. C. Sanders, Fred M. Roberts 2008-3-25 34537 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  RSA542429  Filago gallica Bill O'Connell 1991-5-31 5 Orange San Joaquin Hills: Pelican Hill, west side 190 Comment
  JEPS12254  Foeniculum vulgare Lawrence M. Booth 1932-8-5 1346 Orange Newport Beach Comment
  UCR193006  Foeniculum vulgare A. C. Sanders, Fred M. Roberts 2008-6-17 35458 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Hicks Canyon Haul Road 0.5 mi. east of the Foothill Transportation Corridor 244 Comment
  RSA759534  Foeniculum vulgare Robt. Allen 2006-12-13 s.n. Orange Trabuco Canyon. About 2 mi. up from Live Oak Road, SW of Trabuco Truck Trail, in creekbed near base of north-facing hillside 395 Comment
  CAS-BOT-BC63069  Frangula californica subsp. californica P. C. Everett 1936-9-19 8268 Orange Santa Ana Mts., Silverado Canyon. In vicinity of Forest Service Road gate. 762 Comment
  LA207689  Frangula californica subsp. cuspidata P. C. Everett; 1935-6-18 5451 Orange Santa Ana Mountains, summit of Santiago Peak 1731 Comment
  LA207696  Frangula californica subsp. cuspidata C. B. Wolf; 1933-8-24 5391 Orange Santa Ana Mountains, summit of Santiago Peak 1731 Comment
  RSA391400  Frankenia grandifolia Albert J. Perkins 1923-6-28 s.n. Orange Laguna Beach. Comment
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Jul 15 2013
  RSA391401  Frankenia grandifolia Joseph A. Ewan 1932-7-28 7701 Orange Corona Del Mar Comment
  RSA0055057  Frankenia grandifolia Jim Shevock 1970-10-19 522 Orange Newporft Back Bay. 3 Comment
  RSA234534  Frankenia grandifolia var. grandifolia James Henrickson 1970-7-25 5031 Orange 3.5 miles NW of Huntington Beach on sandy margin of Bolsa Bay, 1/4 mile E of Warner Ave. along Pacific Coast hwy. 1 Comment
  RSA689536  Frankenia salina R. E. Riefner Jr. 2002-5-4 20 -95 Orange Upper Newport Bay, Jamboree Rd at Bayview Dr. 15 Comment
  UC1494289  Frankenia salina Molly Whalen and Liz Evans 1978-6-2 511 Orange sw of bridge near U.S. Naval Weapons Station (along Pacific Coast Highway 1) Comment
  UCR224032  Frankenia salina Justin M. Wood 2009-12-1 1394 Orange South Coast, Santa Ana River, marsh just upstream of Pacific Coast Highway 2 Comment
  RSA696741  Franseria bipinnatifida Minor Warne 1934-04 s.n. Orange Corona Del Mar Comment
  CAS-BOT-BC217644  Fraxinus dipetala John Thomas Howell 1927-7-26 2844 Orange Claymine Canyon, n. Santa Ana Mts. 243 Comment
  UCD170071  Fraxinus dipetala R. F. Thorne; C. W. Tilforth, E. W. Lathrop 1977-4-27 49687 Orange Northern Santa Ana Mountains: Sierra Peak. 899 Comment
  POM265787  Fumaria parviflora Vesta Newsom Griffith 1943-3-21 s.n. Orange Near Katella School, 2.5 miles southwest of Anaheim Comment
  RSA184111  Fumaria parviflora I. L. Wiggins 1965-11-5 20327 Orange In orange grove on N side of Chapman Avenue, near Kraemer Road. Comment
  RSA566  Funastrum cynanchoides var. hartwegii J. T. Howell 1927-7-24 461 Orange Santa Ana River bottom near Rancho Santa Ana. 152 Comment
  UCR281491  Funastrum cynanchoides var. hartwegii Mitch Provance 2017-6-9 617- 99 Orange Coyote Hills, North Fullerton, East side of Gilbert St., 0.5 miles ENE of intersection with Castlewood Dr. 124 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
  UCR192724  Galinsoga parviflora A. C. Sanders, Fred M. Roberts 2008-5-6 35226 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hicks Canyon, just above tollway (Hwy 241) crossing on Irvine Haul Rd., near debris basin 216 Comment
  RSA700193  Galium angustifolium L. C. Hull 1934-4-24 s.n. Orange Trabuco Canyon. Comment
  SEINET10500686  Galium angustifolium James S. Miller 1992-5-8 Miller 7450 Orange 2 mi E of the border of Cleveland National on California route 74. 310 Comment
  UCR97812  Galium angustifolium Scott D. White 1997-3-28 4850 Orange Santa Ana Mountains, Above Modjeska Canyon, proposed water tank site. 488 Comment
  JEPS7865  Galium angustifolium subsp. angustifolium Lawrence M. Booth 1932-6-4 1252 Orange Newport Bay Comment
  RSA797667  Galium angustifolium subsp. angustifolium Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49771 Orange Santa Ana Mountains: Trabuco Canyon Comment
  RSA0073656  Galium aparine Fred M. Roberts, Lee Ann Caranza 2009-4-7 7142 Orange Dana Point Headlands: Dana Point CNLM Preserve, 0.8 km WNW Dana Point Marine Institute at Dana Point Harbor. 60 Comment
  RSA221069  Galium aparine E. W. Lathrop 1966-5-1 6261 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland Nat'l Forest, Santa Ana Mountains. 396 Comment
  RSA647956  Galium aparine Mark Breidenbaugh, Caralisa Breidenbaugh 1992-5-24 32 Orange 1000 ft. northwest of Chino Hills State Park Boundary. 244 Comment
  UCSB47621  Galium aparine Roberts, Fred 1980-4-3 Orange Dana Point: hills, 1.0km NE Dana Hills High School 75 Comment
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Oct 28 2018
  CAS-BOT-BC94862  Galium nuttallii subsp. nuttallii R. C. Wenk 2008-3-24 722 Orange Chino Hills S.P., South Ridge Road west of San Juan Hill, going W from Equestrian Staging Area 441 Comment
  RSA682911  Galium parisiense Scott D. White, Amanda Duchardt 2003-5-1 9160 Orange Santa Ana Mountain Foothills: Slopes above west side of Trampas Canyon. 107 Comment
  RSA562824  Galium porrigens Steve D. Boyd, Tim S. Ross 1992-5-20 7457 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
  IRVC26431  Galvezia speciosa Mark A. Elvin 2004-2-22 3153 Orange UCI Arboretum Southern Coastal 15 Comment
  UCSB45954  Gamochaeta pensylvanica Roos, John 1965-6-16 Orange Dana Point Comment
  RSA702684  Gastridium phleoides Scott D. White, Michael Honer 2004-5-17 10398 Orange City of Laguna Niguel. Ridges and open slopes directly north of the intersection of Crown Valley Parkway and Pacific Island Dr. 61 Comment
  RSA586252  Gastridium phleoides R. E. Riefner 1995-10-28 95 -383 Orange San Clemente State Beach Comment
  UC537117  Gastridium ventricosum Lawrence M. Booth 1932-5-19 1082 Orange Newport Bay Comment
  UCR209347  Gaura coccinea Fred M. Roberts 2008-4-15 6898 Orange Lomas de Santiago, Loma Ridge, Lower Hicks Canyon, east ridge, Conservation Trail, 1.6 km east-southeast of Rattlesnake Reservoir Dam and 2.6 km west-southwest of Bee Peak, Irvine Ranch Conservancy 183 Comment
  CDA5174  Gaura drummondii Margaret Bellue 1943-9-1 Orange Sterns, 3 miles east of Yorba Linda. 0 Comment
  UC284868  Gayophytum diffusum subsp. parviflorum P. A. Munz 1923-9-7 7749 Orange Santiago Peak Santa Ana Mts. (near summit) 1645 Comment
  RSA682592  Geranium carolinianum Scott D. White, Brian Leatherman 1997-5-6 5037 Orange Santa Ana Mts: Santiago Canyon area. Unnamed tributary to Santiago Ck. flowing from the SW, directly west of Pancho Cyn. Lomas de Santiago S 179. 366 Comment
  UCR191014  Geranium carolinianum A. C. Sanders, Fred M. Roberts 2008-4-22 35031 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Limestone Canyon, c. 2 miles SW of Silverado 396 Comment
  UCR241091  Geranium incanum var. multifidum R. E. Riefner Jr. 2012-6-16 12- 404 Orange South Coast, City of Dana Point, Dana Point Harbor Drive at Island Way 11 Comment
  RSA734014  Gilia angelensis A. C. Sanders, Fred M. Roberts 2008-4-22 35061 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago, Loma Ridge c. 1/4 mi. SE of VABM Bee, above Bee Canyon landfil on road from H icks Canyon Haul Rd. to Limestone Canyon, c. 3.5 miles WSW of Silverado. 493 Comment
  RSA769341  Gilia angelensis E. W. Lathrop 1974-6-27 7421 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  SEINET7073429  Gilia angelensis A. G. Vestal 1963-4-24 s.n. Orange La Paz Canyon, Rancho Mission Viejo. Coordinate datum: NAD27. Comment
  UCR209363  Gilia angelensis Fred M. Roberts, D. E. Bramlet 2008-4-1 6838 Orange Lomas de Santiago, Loma Ridge, East Lomas Ridge Road along crest, 3.2 km northwest of Bee Peak and 3.4 km northeast of Rattlesnake Reservoir Dam, Irvine Ranch Conservancy 388 Comment
  SEINET6969921  Gilia angelensis W. P. Vestal, A. G. Vestal 1955-3-24 3460 Orange Trabuco Canyon, about 5 miles east of El Toro. Comment
  SEINET272170  Gilia capitata subsp. abrotanifolia G. K. Helmkamp, E. A. Helmkamp 1997-4-24 1660 Orange Cleveland National Forest ; Cleveland National Forest 1.6 mi. SE of Ortega Hwy (CA-74) on Rd. 7-S14. UTM 10km cell: MH-5E 1N. San Juan Hot Spring 549 Comment
  RSA698350  Gilia multicaulis R. H. McArthur s.n. Orange Gypsum Canyon. Comment
  RSA0069233  Glebionis coronaria Fred M. Roberts, Lee Ann Caranza 2009-4-7 7138 Orange Dana Point Headlands: Dana Point CNLM Preserve, 0.8 km WNW Dana Point Marine Institute at Dana Point Harbor. 65 Comment
  UCR217284  Gnaphalium canescens subsp. microcephalum Mark A. Elvin, Laura Soloro, Adam Sriro 2003-1-10 2217 Orange Peninsular Range; Santa Ana Mtns., c. 1.6 mi. west of Sierra Peak along road to powerlines, near Claymont Clay Mine 457 Comment
  RSA573302  Gnaphalium leucocephalum Steve Boyd 1994-9-14 8359 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area of the Cleveland National Forest, Lucas Canyon just downstream of Lucus Canyon Trail crossing near old mining camp. 299 Comment
  RSA627032  Gnaphalium luteoalbum Scott D. White 1998-5-16 6508 Orange E Coyote Hills, Oil field at NW corner of Bastanchury and State College. 122 Comment
  RSA710409  Gnaphalium luteoalbum Fred M. Roberts 2005-10-3 6297 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
  POM201510  Gnaphalium microcephalum L. M. Booth 817 Orange Santa Ana Canyon Comment
  RSA696919  Gnaphalium microcephalum Minor Warne 1934-5-19 s.n. Orange Trabuco. Comment
  POM4622  Gnaphalium palustre P. A. Munz 1918-5-4 2209 Orange Laguna Canyon. Comment
  UCR193495  Gnaphalium palustre A. C. Sanders, T. B. Salvato 2008-5-13 35360 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
  RSA0022441  Gnaphalium ramosissimum R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49774 Orange Santa Ana Mountains: Trabuco Canyon Comment
  UCR158151  Gnaphalium stramineum Adrian Wolf 1998-5-27 340 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
  RSA703385  Gnaphalium stramineum R. E. Riefner Jr. 2004-5-6 04 -173 Orange Newport Beach, north side of Pacific Coast Hwy., west of Bayside Drive near Newport Dunes Beach Club. 10 Comment
  RSA698229  Godetia bottae R. H. McArthur 1934-5-19 s.n. Orange Trobuca Canyon. Comment
  RSA698236  Godetia purpurea Kenneth Beard s.n. Orange East of Irvine Park. Comment
  UCR107447  Grindelia camporum B. G. Pitzer, M. Georgiady 1997-4-5 3086 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
  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
  CAS-BOT-BC305211  Grindelia hirsutula LeRoy Abrams 1903-4-19 3273 Orange Capistrano Comment
  UC536899  Grindelia hirsutula Lawrence M. Booth 1932-5-24 1092 Orange Newport Bay 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
  RSA701808  Gutierrezia sarothrae Fred M. Roberts 2000-6-8 5339 Orange Chino Hills: Yorba Linda, on ridge between Box and Lost Trough Canyons, c.a. 1.2km NE Bench Mark 388 266 Comment
  UCR24011  Hainardia cylindrica John C. Roos 1941-6-4 s.n. Orange Corona Del Mar Comment
  IRVC26430  Haplopappus canus Mark A. Elvin 2004-2-22 3154 Orange UCI Arboretum Southern Coastal 15 Comment
  UCR197707  Haplopappus menziesii A. C. Sanders, Fred M. Roberts 2008-9-18 36078 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge 330 Comment
  HSC5758  Haplopappus venetus J. W. Johnson 1961-3-29 Orange Newport Beach, N slope overlooking upper Newport Bay Comment
  IRVC23186  Hedera canariensis G. Reynolds 1987-7-7 6 Orange Costa Mesa; at corner of Mesa St. and Santa Ana Ave. Southern Coastal Comment
  CAS-BOT-BC306305  Hedypnois cretica C. B. Wolf 1938-5-2 9406 Orange City of Fullerton, Francis St., 1200 block E. side in vacant lot 60 Comment
  HSC93899  Hedypnois cretica D. Atwood 1993-3-28 17716 Orange Bolsa Chica Ecological Reserve, California Dept. of Fish and Game 0 Comment
  UCR150613  Hedypnois cretica Scott D. White 1997-5-6 5045 Orange Peninsular Ranges; Santa Ana Mountains, Lomas de Santiago. Santiago Canyon area: Ridgetop road N and west of Bolero Lookout 488 Comment
  CAS-BOT-BC306302  Hedypnois cretica Ira L. Wiggins 1966-3-31 20572 Orange Along south side of Brea Olinda Boulevard, near Carolina Avenue 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
  LA204752  Helianthemum scoparium W. Pequegnat; 1936-9-8 102 Orange Santa Ana Mountains, Ortega Rd Comment
  UCR192108  Helianthemum scoparium A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35309 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along fire line/bulldozer cut, c. 1.5 mi. east of Walnut Cyn Reservoir 346 Comment
  UCR241917  Helianthemum scoparium Fred M. Roberts 2012-5-10 7565 Orange San Joaquin Hills, Buck Gully, south tributary, north slope Pelican Hill, just north of Pelican Hills Drive, 0.7 km north of Pelican Hill summit 183 Comment
  CAS-BOT-BC305443  Helianthus annuus Ira L. Wiggins 1965-10-24 20285 Orange Along Skyline Drive near intersection with Raymond Street, Fullerton Comment
  POM201743  Helianthus annuus subsp. lenticularis L. M. Booth 1932-6-29 1230 Orange Newport Bay. Comment
  CAS-BOT-BC305657  Helianthus ciliaris E. Paddock 1942-7-21 11291 Orange Toler Ranch, N. side Ocean Ave., 1/4 mi. W. of La Mirada Rd., LaHabra Comment
  POM360029  Helianthus ciliaris E. L. Paddock 1942-7-21 11291 Orange Toler Ranch, N. side Ocean Ave., 1/4 mi W of La Mirada Rd. La Habra. Comment
  CAS-BOT-BC305676  Helianthus gracilentus John Thomas Howell 1927-7-3 2638 Orange Claymine Canon [Canyon], n. Santa Ana Mts. 304 Comment
  SBBG104036  Helianthus gracilentus B. Pitzer, H. Hemstreet 1992-5-27 1963 Orange Rd 3S04 to Blue Jay Group Cmpgrd, off St Hwy 74, ca. 2 air mi W of El Cariso Cmpgrd Comment
  IRVC29807  Heliotropium curassavicum Laura D. Lyons, Mark A. Elvin 2006-9-23 421 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
  UCR195005  Heliotropium curassavicum A. C. Sanders, Fred M. Roberts 2008-8-7 35983 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
  POM369737  Heliotropium curassavicum var. oculatum F. R. Fosberg 1930-7-10 3196 Orange Anaheim Landing. [Los Angeles Co. on label] 5 Comment
  RSA650818  Heliotropium curassavicum var. oculatum Daniel Truong 1991-5-13 27 Orange Irvine Regional Park, left field adjacent to main entrance, within 1/4 mile radius of 'closed area' Comment
  UCD119434  Heliotropium curassavicum var. oculatum B. Pitzer 1996-4-30 2770 Orange Upper Newport Bay: Calif. Dept. Fish and Game Ecological Reserve, off (W of) Jamboree Rd. 6 Comment
  POM47586  Heliotropium curassavicum var. oculatum I. M. Johnston 1924-8-29 s.n. Orange 3.5 miles N of Balboa. Comment
  CAS-BOT-BC305899  Helminthotheca echioides Ira L. Wiggins 1965-11-5 20322 Orange Near corner of Dowling Street and Crowther Avenue. 1/2 mi. S of Placentia Comment
  CAS-BOT-BC305897  Helminthotheca echioides W. P. Sanders 1969-7-11 4 Orange Costa Mesa Comment
  SEINET10802443  Helminthotheca echioides David B. Dunn Dunn 22400 Orange Collected around the condominium-Pacific Island Estates in Laguna Niguel area. 30 Comment
  RSA202173  Hemizonia australis L. M. Booth 1932-6-7 1169 Orange Newport Lagoon. Comment
  POM6416  Hemizonia fasciculata P. A. Munz 1919-5-3 2642 Orange Santa Ana River Canyon. Comment
  RSA627746  Hemizonia fasciculata Scott D. White 1998-1-26 6069 Orange Irvine, Univ. of Calif. Irvine Campus: Site of proposed Research Park. SW of main campus circle, ca. halfway between Berkeley Av. and new freeway (Bonita Cyn.) 37 Comment
  RSA678737  Hemizonia fasciculata Fred M. Roberts, Carol A. Roberts, Robert Allen 2003-5-11 5858 Orange Dana Point Headlands: hilltop, 0.6km SSW Richard Henry Dana School south of Pacific Coast Highway and north of Scenic Drive. 73 Comment
  UCR131869  Hemizonia fasciculata J. Mallory, V. McCoy 1995-7-3 6454- 104 Orange Santa Ana Mountains: Blind Canyon, c. 0.5 mi. east of confluence with Santiago Canyon, on a W-facing slope. north of Irvine Lake 300 Comment
  UCR158032  Hemizonia fasciculata Adrian Wolf 1998-5-15 295 Orange South Coast, Dana Point Headlands, north of Scenic Dr. 67 Comment
  UCR228802  Hemizonia fasciculata Dick Newell, Don Millar 2011-5-24 167 Orange Peninsular Range; Santa Ana Mtns., above Outdoor Education Center on MWD service road, 1.6 miles NW (311 deg. ) of Irvine Lake dam 244 Comment
  SEINET5014574  Hemizonia parryi Unknown 1933-9-29 2537 Orange Seal Beach Comment
  UCR157704  Hemizonia parryi subsp. australis Adrian Wolf 1998-5-27 326 Orange South Coast, Newport Slough, south of oil fields, between Huntington Beach, Costa Mesa and Newport Beach, just south of the channelized mouth of the Santa Ana River 2 Comment
  UCR231160  Hemizonia parryi subsp. australis Dick Newell, Don Millar 2011-6-22 191 Orange South Coast, Newport Beach, Delhi Channel near University Drive 5 Comment
  RSA0001299  Hemizonia parryi subsp. australis D. D. Keck 1933-9-29 2537 Orange Seal beach. Comment
  JEPS44659  Heteromeles arbutifolia Lawrence M. Booth 1932-6-7 1166 Orange Newport Bay Comment
  RSA649083  Heteromeles arbutifolia Karl Price 1988-5-21 57 Orange An unnamed side canyon within Hot Springs Canyon. It is on Hot Springs Canyon Rd., 0.75 mi. North of Ortega Hwy. (74), 12.6 mi. East of San Juan Capistrano. 305 Comment
  RSA735169  Heteromeles arbutifolia A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35277 Orange Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir. 300 Comment
  UCR131873  Heteromeles arbutifolia J. Mallory, V. McCoy 1995-6-30 6454- 58 Orange Santa Ana Mountains: S-facing slope on Windy Ridge, c. 2.5 mi. south of 91 fwy. Comment
  UCR16774  Heteromeles arbutifolia Cesareo Perez 1971-5-4 04 Orange South Mesa Drive and Lemon Street, Villa Park Comment
  UCR174217  Heteromeles arbutifolia A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33060 Orange Peninsular Range; Santa Ana Mtns., San Juan Canyon, from Lower San Juan Picnic Area to c. 1 mile downstream, parallel to Hwy 74 and near Riverside Co. line 396 Comment
  CAS-BOT-BC318909  Heterotheca grandiflora John Thomas Howell 1927-9-24 3119 Orange Santa Ana River bottom, Santa Ana Canyon 152 Comment
  UCR106287  Heterotheca grandiflora B. G. Pitzer, M. Georgiady 1997-4-5 3070 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
  UCR193773  Heterotheca grandiflora A. C. Sanders, Fred M. Roberts 2008-7-3 35697 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along Windy Ridge Rd. at hairpin turn/road junction below huge sandstone boulder (visible on Google Earth), 1.2 mi. SE of Walnut Canyon Reservoir 285 Comment
  CAS-BOT-BC318904  Heterotheca grandiflora J. Ewan 1931-10-3 s.n. Orange 1/2 mile above La Vida Soda Springs, Carbon Canyon Comment
  CAS-BOT-BC318907  Heterotheca grandiflora Ira L. Wiggins 1966-3-16 20523 Orange Near Orange County refuse dispoasl area Comment
  IRVC797  Heterotheca grandiflora B. Mawdsley 1965-4-4 Orange Corona del Mar. Newport Beach Comment
  RSA0075805  Heterotheca grandiflora D. M. McF 1956-4-11 5 Orange Moulton Ranch, South Coast. 152 Comment
  RSA0075813  Heterotheca grandiflora Dolores Perez 1981-4-11 6 Orange Carbon Canyon Rd., 6 miles E. of junction with Ca Hwy 90. Comment
  SD8916  Heterotheca grandiflora George R. Kleeberger Nov 1875 Orange Santa Ana Valley Comment
  POM47593  Heterotheca sessiliflora subsp. echioides I. M. Johnston 1924-8-29 s.n. Orange 2.5 miles north of Balboa. Comment
  RSA812  Heterotheca sessiliflora subsp. echioides J. T. Howell 1927-9-24 744 Orange Santa Ana River Bottom, Rancho Santa Ana 152 Comment
  CAS-BOT-BC318989  Heterotheca sessiliflora var. echioides John Thomas Howell 1927-9-24 3109 Orange North side of Santa Ana Canyon 213 Comment
  UCD150984  Hieracium argutum D. S. Park 2010-4-25 29 Orange Whiting Ranch Wilderness Park, along trail. Open, disturbed areas. 254 Comment
  CAS-BOT-BC55402  Hirschfeldia incana Ira L. Wiggins 1966-3-22 20556 Orange Floor of Silverado Canyon about 0.5 mile below entrance to Cleveland National Forest. Comment
  RSA38433  Hoffmannseggia glauca E. L. Paddock 1946-6-14 11519 Orange Rancho Santa Ana, along AT & SF Ry., above old pear orchard. Area of approximately 100 sq. ft. 121 Comment
  CAS-BOT-BC207960  Hoffmannseggia glauca Margaret K. Bellue 1933-6-7 s.n. Orange Unspecified Comment
  RSA0026264  Hoita macrostachya Fred M. Roberts 2013-6-12 7785 Orange Peninsular Ranges: Santa Ana Mtns: Lower Silverado Canyon along Silverado Creek on north side of Silverado Canyon Road, 0.6 kilometers ENE Silverado School and 1.4 kilometers up stream Black Star Road Crossing. 320 Comment
  SBBG120959  Hoita macrostachya A. C. Sanders, F. M. Roberts, M. Balk 2006-7-20 33029 Orange San Juan Cyn, from Lower San Juan Picnic Area to ca. 1 mi downstream, parallel to Hwy 74 and near Riverside Co line 366 Comment
  UC592898  Holodiscus discolor Carl B. Wolf 1933-8-24 5390 Orange Santa Ana Mountains, Summit of Santiago Peak Summit of Santiago Peak; Santa Ana Mountains, Summit of Santiago Peak 1731 Comment
  SD247727  Holodiscus discolor R. F. Thorne, C. W. Tilforth, E. W. Lathrop. 1977-4-27 49690 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  RSA542403  Holodiscus discolor var. franciscanus Karlin G. Marsh, Gordon Marsh 1989-6-25 s.n. Orange Central Santiago Canyon, old mine trail below Santiago Truck Trail, 2.5 km SSW Laurel Springs 719 Comment
  RSA542404  Holodiscus discolor var. franciscanus Bernard Jaroslow 1989-5-29 B- 24 Orange Along trail just below truck trail, in the canyon of Upper Santiago Creek, above deserted mines Comment
  RSA615545  Holodiscus microphyllus Fred M. Roberts Jr., Kirsten Winter, Leanne Naue 1997-6-5 5039 Orange Costa Mesa; Fairview Park, Just west of end of Canyon Drive, 0.1 km W Canyon School. 24 Comment
  POM205098  Hordeum brachyantherum subsp. californicum H. M. Hall 1902-05 3285 Orange Santa Ana River 183 Comment
  RSA587884  Hordeum depressum Fred M. Roberts 1990-5-8 4615 Orange Soquel Canyon, 1.2km NNW Gilman Peak 240 Comment
  UCR150373  Hordeum intercedens D. E. Bramlet 1998-5-20 2622 Orange Coastal Plains & Basins/Coastal Plains region, San Juan Hills: 488 m west of La Pata Ave. and 1.22 km N of Prima Deshecha Canada. A blue-line drainage 457 m east of the old ridgeline road 149 Comment
  UCR150374  Hordeum intercedens D. E. Bramlet, S. Leatherman 1998-5-21 2624 Orange Coastal Plains & Basins/Coastal Plains region, Adjacent to ridgeline road 122 m N of the Segunda Deshecha Canada access road (Telaga Valley Dr.), 152 m west of Wilson Camp Rd. c. 2.68 km NE of Avenida Pico and 1.52 km west of Cristianitos Canyon 219 Comment
  UCR267436  Hordeum intercedens D. E. Bramlet 2001-5-15 3143 Orange Santa Ana Mtns. Foothills, upper watershed of Deep Canyon, 1300 ft. east of Krum Reservoir, c. 2 miles SE of San Juan Capistrano, 1200 ft. south of Avenida Placida, west of the Prima Deshecha landfill 201 Comment
  CDA32412  Hordeum jubatum R. L. Pope 1961-7-18 Orange Santa Ana Freeway. 0 Comment
  RSA696594  Hordeum murinum Anonymous s.n. Orange High School Campus. 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
  UCSB48126  Hordeum vulgare Roberts, Fred 1981-4-11 Orange Highway 74: 5.2km E San Juan Capistrano, near San Juan Creek crossing 52 Comment
  RSA450874  Hypericum canariense Fred M. Roberts 1984-4-29 1361 Orange Dana point Headlands: 0.5km NW Dana Point Harbor; 0.4km S Richard Henry Dana School 75 Comment
  UC2061630  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 Road E of I-5 Freeway. Comment
  RSA743384  Hypochaeris glabra Fred M. Roberts 2008-5-27 7008 Orange Dana Point: Dana Point Headlands, CNLM Preserve near NE Gate, 0.5 km W Marine Institute (Dana Point Harbor). 75 Comment
  UCR100447  Hypochaeris glabra B. G. Pitzer 1996-4-30 2782 Orange South Coast, Upper Newport Bay, Calif. Dept. Fish & Game Ecological Reserve, off (W of) Jamboree Road 6 Comment
  UCR188940  Ipomoea cairica Robert DeRuff 2006-1 567 Orange Newport Beach, Upper Newport Bay, Back Bay Drive, lower bluff between 23rd Street and Mariners Drive 5 Comment
  UCR271002  Isocoma menziesii Mitch Provance, Travis Kegel 2016-4-8 416- 61 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-BC311733  Isocoma menziesii var. vernonioides John Thomas Howell 1927-7-17 2789 Orange One mile north of Laguna Beach 30 Comment
  IRVC24537  Isocoma menziesii var. vernonioides J. Johnson 1976-8-10 Orange Newport [Back] Bay. Newport Beach Comment
  RSA5239  Isocoma menziesii var. vernonioides C. B. Wolf 1932-9-13 4027 Orange Bryant Ranch: Triangle of waste ground S of Bryant Ave., & 1/2 mi. west of Los Alamitos Blvd. (Triangle waste ground at NW corner of SW 1/4 sect. 30 T4S R11W) 8 Comment
  RSA5380  Isocoma menziesii var. vernonioides B. D. Stark 1932-12-30 4459 Orange Rancho Santa Ana, 1/4 mile W of Roundtop. 457 Comment
  RSA680324  Isocoma menziesii var. vernonioides Scott D. White, Jeff Lincer 2003-7-7 9615 Orange Former El Toro Marine Corps Air Stn. East of 'El Toro Marine Sch.' and Irvine Blvd.; site of former dump. 140 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
  RSA0031742  Isocoma menziesii var. vernonioides R. F. Thorne 1977-11-21 50822 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs Comment
  RSA660590  Isolepis carinata R. E. Riefner 2000-7-10 20 -641 Orange Nature Reserve of Orange County. Los Trancos Canyon, E of Pelican Hill. Comment
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Jul 18 2011
  UC1090402  Isomeris arborea Milo S. Baker 1958-5-20 13307 Orange Newport Bay Comment
  UCR239925  Iva hayesiana O. F. Clarke, D. Svehla 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
  RSA651865  Jasminum humile Booisseranc s.n. Orange Front of Congressional Church, Breolinda. Comment
  IRVC9346  Jaumea carnosa J. W. Johnson 1974-5-25 Orange Upper Newport Bay, east shore, 500ft N of San Joaquin Rd. on Backbay Dr.; salt marsh. Newport Beach Comment
  POM361345  Jaumea carnosa L. C. Wheeler 1932-6-22 846 Orange Newport Bay, Orange County Comment
  IRVC24542  Jaumea carnosa John Johnson 1976-8-10 Orange Newport Back Bay; coastal salt marsh. Newport Beach Comment
  POM47591  Jaumea carnosa I. M. Johnston 1924-8-29 s.n. Orange 3 miles north of Balboa. Comment
  SD138020  Juglans californica Carl B. Wolf 1939-11-29 42257 Orange Orange County Picnic Grounds Comment
  CHSC116494  Juglans californica R. F. Thorne; E. W. Lathrop, W. Wisura 1977-7-8 49613 Orange Santa Ana Mountains: along Ortega Highway (74) about 2.5 miles above San Juan Fire Station. Comment
  POM9756  Juglans californica P. A. Munz 1921-2-26 4682 Orange Brea Canyon. 305 Comment
  RSA0011067  Juglans californica Gary D. Wallace 1964-5-22 s.n. Orange Santa Ana Canyon Comment
  RSA0011078  Juglans californica Claire Kibbe 1936-07 s.n. Orange Santa Ana Canyon. 762 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
  UC718137  Juglans californica var. californica C. B. Wolf 1934-9-21 6141 Orange lower end Brea Canyon; Puente Hills Comment
  CAS-BOT-BC538089  Juglans hindsii R. E. Riefner, Jr. 2015-11-21 15 -452 Orange City of Orange, Irvine Regional Park, SW end of Park, S of Peters Canyon Rd., general vicinity of the Orange Cunty Zoo 187 Comment
  SD237482  Juglans hindsii R. E. Riefner Jr. 2009-8-12 09 168 Orange Foothills of Santa Ana Mountains, near Silverado, Cook's Corner area, Santiago Canyon Road at Lawrence Canyon Road. USGS Quad: Lake Forest. 334 Comment
  RSA782381  Juglans hindsii R. E. Riefner Jr. 2009-8-12 9 -168 Orange Foothills of Santa Ana Mts, near Silverado, Cook s Corner area. Santiago Canyon Road at Lawrence Canyon Road. 335 Comment
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Dec 14 2012
  CAS-BOT-BC102337  Juglans nigra A. C. Sanders; Fred M. Roberts 2008-6-17 35477 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago, Agustine staging area near Liemstone Canyon Rd. gate at Santiago 260 Comment
  UCR216056  Juglans regia R. E. Riefner Jr. 2009-7-18 09- 149 Orange Trabuco Canyon, Trabuco Canyon Rd. c. 1.25 mi. NW of O'Neil Regional Park 332 Comment
  RSA795706  Juncus W. R. Ferren 1991-12-4 EPA- 18 Orange Cook Creek, tributary to Aliso Creek, San Juan Capistrano. Comment
  CAS-BOT-BC110028  Juncus acutus Frank W. Gould 1944-4-30 2330 Orange 2 miles southwest of Huntington Beach. Comment
  RSA286441  Juncus acutus subsp. leopoldii Mary H. O Brien 1976-5-1 s.n. Orange Bolsa Chica Bay, 1/4 mile south of Bolsa Chica State Beach entrance station and 50m east of Hwy 1; Sea level Comment
  UCR132981  Juncus acutus subsp. leopoldii Adrian Wolf 2000-7-3 447 Orange Santa Ana Mtns., 0.4 km SE of Black Star Canyon mouth 290 Comment
  UCR4761  Juncus acutus subsp. leopoldii Barbara T. Gittins 1966-5-29 1369 Orange Upper Newport Bay Comment
  RSA0014067  Juncus arcticus var. balticus Fred M. Roberts, R. E. Riefner 2010-5-30 7021 Orange Lomas de Santiago: Loma Ridge, Hanging Man s Tree Cyn., along Hanging Man s Tree Cyn. Rd., c.a. 0.4km W Santiago Cyn. Rd., and 1.2 km N Bolero Lookout. 372 Comment
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Sep 21 2020
  UCR193378  Juncus balticus subsp. ater A. C. Sanders, Mitch Provance 2008-5-20 35395 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, mouth of Hangman Tree Canyon just above confluence with Santiago Creek Canyon, c. 1/2 mile below Modjeska Canyon confluence 366 Comment
  POM201724  Juncus bufonius L. M. Booth 1934-5-24 1088 Orange Newport Bay. Comment
  RSA542516  Juncus bufonius Fred M. Roberts 1987-3-31 3300 Orange Lomas de Santiago: Lomas [Loma] Ridge, upper Serrano Canyon, east fork, reservoir, 2.7 kilometers SE Bolero Lookout. 350 Comment
  RSA754063  Juncus patens A. C. Sanders, Fred M. Roberts 2008-7-16 35856 Orange Lomas de Santiago, upper Hangmans Tree Canyon 395 Comment
  RSA50308  Juncus phaeocephalus E. K. Balls 1949-5-9 13467 Orange [Rancho Santa Ana] Botanic Garden, Santa Ana River Canyon. 198 Comment
  POM1601  Juncus rugulosus C. B. Bradshaw 1902-7-19 s.n. Orange Santiago Canyon. Comment
  RSA731796  Juncus rugulosus Fred M. Roberts, Sandy Leatherman 2007-11-9 6642 Orange Santa Ana Mtns.: San Juan Canyon along San Juan Creek, 0.2km E community of San Juan Hot Springs. 222 Comment
  UCR193071  Juncus sphaerocarpus A. C. Sanders, Mitch Provance 2008-5-20 35421 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago area, Santiago Creek Canyon, c. 3/4 mile below Modjeska Canyon confluence 355 Comment
  CDA25223  Juncus textilis A. C. Sanders, Fred M. Roberts 2008-8-7 35994 Orange Peninsular Range; Santa Ana Mountains.; Lower Weir Canyon, at narrow gorge c. 0.6 mile above mouth of canyon at Irvine Ranch gate. Comment
  RSA0014070  Juncus textilis Fred M. Roberts, R. E. Riefner 2010-5-30 7023 Orange Lomas de Santiago: Loma Ridge, Hanging Man s Tree Cyn., along Hanging Man s Tree Cyn. Rd., c.a. 0.4km W Santiago Cyn. Rd., and 1.2 km N Bolero Lookout. 372 Comment
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Sep 21 2020
  RSA788802  Juncus textilis Robert F. Thorne 1977-11-21 49984 -a Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp Comment
  UC536958  Juncus textilis Lawrence M. Booth 1932-6-7 1159 Orange Newport Lagoon Comment
  JEPS67112  Juncus torreyi S. B. Parish and W. F. Parish Oct 1882 1593 Orange Orange Comment
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Jul 18 2010
  RSA104  Juncus torreyi J. T. Howell 1927-7-14 399 Orange Santa Ana River, Rancho Santa Ana. 152 Comment
  RSA542335  Juncus xiphioides Fred M. Roberts, K. Keane 1988-5-25 3985 Orange Ranch Mission Viejo: Lower Canada Chiquita, 2.5 kilometers SSE Medium Rancho Survey Mark. 82 Comment
  UCR240182  Juniperus rigida var. conferta R. E. Riefner Jr. 2011-7-1 11- 81 Orange South Coast, city of Newport Beach, beach area between Shorecliff Road and Cameo Shores Road 18 Comment
  CAS-BOT-BC235489  Keckiella antirrhinoides Jenkins 1929-2-6 s.n. Orange Claymine Canyon, Santa Ana Mts. 213 Comment
  RSA293256  Keckiella antirrhinoides D. C. Michener 1980-6-5 3666 Orange Santa Ana Mtns near El Cariso. Steep slopes at head of Dickey Canyon (Alberhill Quadrangle) with Asenostoma. 900 Comment
  RSA424818  Keckiella antirrhinoides Albert J. Perkins 1916-6-15 s.n. Orange Santa Ana. Comment
  RSA5279  Keckiella antirrhinoides B. D. Stark 1932-12-15 1701 Orange Rancho Santa Ana, slope above grove #4. 145 Comment
  RSA765301  Keckiella antirrhinoides Doris Bowers 1971-4-9 1697 Orange SW of Corona, Santa Ana Mts. 457 Comment
  UCR234140  Keckiella antirrhinoides Dick Newell, Judy Booth 2012-4-6 244 Orange Peninsular Range; Santa Ana Mtns., Maple Springs Road at Mountain View Trail, Cleveland National Forest 610 Comment
  NY786525  Keckiella antirrhinoides var. antirrhinoides D. C. Michener 1980-6-5 3668 Orange Santa Ana Mountains. San Juan river valley, on terrace near abandoned mine(s). Comment
  SD245484  Keckiella antirrhinoides var. antirrhinoides Robert Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49601 Orange Santa Ana Mountains: rocky ravine tributary to San Juan Canyon, along Ortega Highway (74) about 2 miles above San Juan Fire Station. Comment
  SD247733  Keckiella antirrhinoides var. antirrhinoides R. F. Thorne, C. W. Tilforth, E. W. Lathrop. 1977-4-27 49658 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak] Comment
  RSA401705A  Keckiella cordifolia Albert J. Perkins 1923-6-24 s.n. Orange Silverado Canyon Comment
  RSA5930  Keckiella cordifolia Carl B. Wolf 1932-7-2 3822 Orange Carbon Canyon, 1/8 mile below La Vida Springs [La Vida Mineral Springs]. 213 Comment
  RSA748264  Keckiella cordifolia A. C. Sanders, Fred M. Roberts 2008-6-17 35516 Orange middle section of Weir Canyon, SSE of Walnut Canyon Reservoir 225 Comment
  RSA773556  Keckiella cordifolia Fred M. Roberts 2008-6-3 7028 Orange Lomas de Santiago: Loma Ridge, East Fork Rattlesnake Canyon, ca. 2.6 km NE of Rattlesnake Reservoir spillway and 2.4 km ENE Bee Peak 235 Comment
  SEINET7067530  Keckiella cordifolia A. G. Vestal 1947-6-12 s.n. Orange Santiago Creek Valley 0.4 miles below Silverado Canyon fork. Coordinate datum: NAD27. UTM Zone 11, 438769mE, 3733678mN. Comment
  RSA184190  Kochia scoparia I. L. Wiggins 1966-5-4 20656 Orange Along railroad embankment of A.T. & S.F. R.R., on SW side of Orangethorpe avenue, near Esperanza siding. Comment
  RSA708524  Koeleria macrantha Fred M. Roberts, Robert L. Allen, Chris Barnhill, Nancy Hatfield 2005-5-30 6242 Orange Modjeska Peak summit, c.a. 60m south of highest point. 1675 Comment
  RSA753162  Koeleria macrantha D. E. Bramlet 2008-4-28 4245 A Orange East Fork of Upper Weir Cyn, 1.2km east of the main Cyn. & 91m W of the upper boundary of Gypsum Cyn. 409 Comment
  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
  RSA725512  Koelreuteria bipinnata Fred M. Roberts 2007-9-11 6563 a 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
  CAS-BOT-BC340501  Lactuca serriola John Thomas Howell 1927-7-27 2855 Orange Hills on n. side of Santa Ana Canon [Canyon] 152 Comment
  POM361393  Lactuca serriola Freda Detmers 1931-7-15 s.n. Orange San Bernardino Mts, One ridge along Pine of the World Drive Comment
  SBBG128396  Laennecia coulteri F. M. Roberts, L. A. Caranza 2009-9-23 7162 Orange CNLM Dana Point Preserve, old Marguerite Rd bed just W of the Nature Center and just E of the terminus of Dana Strands Rd, 0.7 km W pier, Dana Point Harbor 73 Comment
  POM202589  Lamarckia aurea L. M. Booth 1932-5-12 1022 Orange Newport Bay Comment
  RSA737548  Lamarckia aurea Fred M. Roberts 2008-3-12 6713 Orange Dana Point: Dana Point Headlands CNLM Preserve, western side, c.a. 0.8 km W Marine Institute (Dana Point Harbor). 50 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
  RSA651779  Lamarckia aurea Bill Amling 1948-5-2 5 Orange 10681 Flower St. Stanton. 242 Comment
  RSA699157  Lamarckia aurea Rankin s.n. Orange Newport Beach. Comment
  UCR119295  Lamium amplexicaule R. E. Riefner Jr. 2000-6-26 20- 584 Orange Santa Ana Mountains, North Ranch Policy Plan Area, along dirt road running N from Baker Canyon Road 305 Comment
  UCR193033  Lamium amplexicaule A. C. Sanders, Mitch Provance 2008-5-20 35401 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
  UCSB49039  Lamium amplexicaule Martincich, M. 1980-3-12 Orange On a cow trail on Franklin Ranch, Goleta 137 Comment
  RSA708014  Lantana camara Scott D. White, Jennifer H. Jones 2005-3-31 10854 Orange South Coast: City of Laguna Beach. 549 Nyes Place. Proposed home site on ca. 0.5 acre. 91 Comment
  POM294108  Lasthenia gracilis Lyman Benson 1946-4-27 12056 Orange Corona Del Mar; Drainage area: Pacific Ocean. 15 Comment
  CSUSB1272  Lathyrus laetiflorus Geoffrey Matthews 1971-5-15 Orange 3 miles north of Morrill Valley Comment
  SEINET5327270  Lathyrus laetiflorus R. Nelson, Baumann; Kondratieff; Sargent 1988-1-12 5117 Orange San Juan Creek at Lower San Juan Campgroud, Cleveland National Forest. 366 Comment
  RSA659554  Lathyrus vestitus P. Shirokawa 1998-5-7 20 Orange Cleveland National Forest- Trabuco Ranger District, 2.3 miles from Ortega Highway (State Highway 74) on North Main Divide Road 960 Comment
  RSA518451  Lathyrus vestitus subsp. laetiflorus Dorothy Tilforth, C. W. Tilforth 1977-3-6 1253 Orange Small canyon W of Gypsum Canyon, S side of Santa Ana River 152 Comment
  UC1543143  Lathyrus vestitus var. alefeldii Donald G. Nelson 1935-4-6 216 Orange e of San Juan Capistrano (and just s of boundary of Cleveland National Forest, canyon branching northward from the summer ranger station on the main highway up San Juan Canyon); San Juan Canyon Comment
  UCR103214  Lathyrus vestitus var. vestitus Scott D. White 1997-2-19 4698 b Orange Santa Ana Mtns, above Modjeska Canyon; proposed water tank site 488 Comment
  UCR4078  Lavatera assurgentiflora 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
  UCR120561  Lavatera olbia O. F. Clarke 1994-6-17 s.n. Orange Laguna Canyon Comment
  POM6370  Layia platyglossa subsp. campestris P. A. Munz, L. T. Street, Williams 1919-5-3 2646 Orange Santa Ana River Canyon. Comment
  RSA463151  Layia platyglossa subsp. campestris Lyman Benson 1932-3-26 3193 Orange Dana Point. 60 Comment
  RSA714001  Lemna minuta R. E. Riefner 2005-10-27 5 -303 Orange City of Irvine; along Jeffrey Rd. N of Barranca Rd. near Irvine Valley College. 47 Comment
  UCSB52476  Lemna minuta Roberts, Fred; Ferren, Wayne 1982-7-21 Orange Newport Beach; Newport Backbay, Back Bay Dr., 1.4 km. N jct. San Joaquin Hills Rd. 1 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
  UCSB57139  Lepechinia calycina Marsh, G.; Marsh, K. 1978-5-13 Orange Santa Ana Mtns.: Claymine Canyon Road; above Claymine Canyon center, west ridge also near road Comment
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Nov 16 2020
  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
  CAS-BOT-BC89527  Lepidium lasiocarpum Philip A. Munz 1932-3-29 12191 Orange Costa Mesa. Comment
  RSA743495  Lepidium lasiocarpum Fred M. Roberts 2008-3-19 6783 Orange Dana Point: Dana Point Headlands, CNLM Preserve, 0.8km W Marine Institute, Dana Point Harbor. 45 Comment
  RSA749841  Lepidium lasiocarpum D. Bramlet, Weena Sangkatavat 2008-3-27 4131 Orange Bee Canyon, Bowerman landfill site. 528 m S of the Bee Canyon access road and 440 m W of the active landfill. Comment
  UCR207789  Lepidium lasiocarpum O. F. Clarke 2004-3-22 s.n. Orange Santa Ana River Canyon, Santa Ana River on the west side of Featherly Park 110 Comment
  IRVC1102  Lepidium lasiocarpum C. Hooven 1965-4-1 Orange Jamboree Rd. Newport Beach Comment
  UCR205991  Lepidium latifolium Adrian Wolf 1997-6-6 014 Orange South Coast, Irvine, southeast of corner of MacArthur Blvd and Bison Road, 100 ft from wetland and 50 ft from Bison mudflats 38 Comment
  UCR266422  Lepidium latifolium D. E. Bramlet 2009-11-27 4427 Orange South Coast, San Diego Creek between Irvine and Newport Back Bay 8 Comment
  CAS-BOT-BC12520  Lepidium nitidum Carl B. Wolf 1932-2-15 2657 Orange Rancho Santa Ana Botanic Garden, above the Rubus beds. 182 Comment
  CAS-BOT-BC12523  Lepidium nitidum Ira L. Wiggins 1966-2-12 20431 Orange North side of La Palma Avenue near Harbor Boulevard, Anaheim. Comment
  RSA3180  Lepidium nitidum C. B. Wolf 1932-3-8 2683 Orange 1/2 mile N of Corona del Mar, Newport Bay. 8 Comment
  UCR102019  Lepidium nitidum B. G. Pitzer 1997-3-25 3026 Orange San Joaquin Hills, Crystal Cove State Park, Pelican Point Area, along the bike trail 30 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
  UCR192487  Lepidium nitidum A. C. Sanders, Fred M. Roberts 2008-3-25 34515 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  CSUSB545  Lepidium nitidum Oscar F. Clarke 1966-3-19 S. N. Orange Irvine Ranch, east of University of Calif. at Irvine, Newport Beach Comment
  UCR60664  Lepidium nitidum var. nitidum C. B. Wolf 1932-2-15 02657 Orange Rancho Santa Ana Botanic Garden, above the Rubus beds 183 Comment
  RSA0127408  Lepidium oblongum Fred M. Roberts 2016-5-20 8060 Orange City of Irvine: San Joaquin Hills, Turtle Rock Community along Ridge Route Road, 1.0 km SE summit of French Hill and just NE intersection with Hillsborough Drive. 122 Comment
  RSA724046  Lepidium oblongum var. oblongum R. E. Riefner 1998-5-15 98 -331 Orange San Clemente State Beach, mima mound field in SW corner of park. 30 Comment
  UC1543086  Lepidium virginicum Donald G. Nelson 1935-4-15 308 Orange between Costa Mesa and Newport Beach Comment
  POM55233  Lepidospartum squamatum J. C. McCoy 1892-9-15 5775 Orange Santa Ana. Comment
  RSA263693  Lepidospartum squamatum H. A. Zuill 1966-7-1 270 Orange Trabuco Canyon. Comment
  RSA734396  Lepidospartum squamatum Keith E. Hoffmaster 1935-4-14 598 Orange Trabuco creek., 1/4 mi. above CCC camp at Trabuco Oaks, Santa Ana Mts. Comment
  UCD134015  Lepidospartum squamatum J. C. Elmore 1929-10-1 2165 Orange orange. Comment
  UCR193821  Lepidospartum squamatum A. C. Sanders, Fred M. Roberts 2008-7-16 35864 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Creek wash at and above the confluence of Hangmans Tree Canyon 370 Comment
  RSA0036014  Leptochloa fascicularis Robert F. Thorne 1977-11-21 50803 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs Comment
  JEPS73757  Leptochloa uninervia Lawrence M. Booth 1932-7-18 1262 Orange Newport Bay, Costa Mesa Comment
  UCR17334  Leptodactylon californicum Andrew Alexis 1978-4-29 s.n. Orange Santa Ana Mtns, mouth of Modjeska Canyon. Comment
  VVC381  Leptodactylon californicum P. J. MacKay 1990-5-25 xn Orange Peninsular Range, Hwy 74 near San Juan Hot Springs 198 Comment
  RSA698318  Leptodactylon californicum Anonymous s.n. Orange Siverado. Comment
  SEINET3479036  Leptodactylon californicum W. P. Vestal, A. G. Vestal 1955-3-24 3461 Orange El Toro, El Toro, about 5 miles east Comment
  UC527219  Leptodactylon californicum subsp. glandulosum B. D. Stark 1931-3-12 1938 Orange w slope Santa Ana Mts. (3 mi n of Modjeska's Home); w slope of Santa Ana Mts. 304 Comment
  SD87568  Leptosiphon floribundus F. W. Peirson 1925-4-10 5741 Orange Silverado Canyon 609 Comment
  CAS-BOT-BC227045  Leptosiphon floribundus subsp. glaber E. R. Johnson 1932-5-1 3703 Orange Santa Ana Mts., along ridge, between Skyline Drive and Santiago Peak 1219 Comment
  RSA764445  Leptosiphon parviflorus Doris Bowers 1971-4-19 1698 Orange Black Star Canyon Indian Site 762 Comment
  RSA773545  Leptosiphon parviflorus Fred M. Roberts 1999-4-26 5197 Orange Lomas de Santiago: Lomas Ridge, tributary to Santiago Canyon Wash on ridge between Limestone Canyon and the wash, 1.4 km SE Silverado School, and 2.7 km N Bolero Lookout. 358 Comment
  CAS-BOT-BC283710  Leymus condensatus John Thomas Howell 1927-6-10 2473 Orange Santa Ana Canyon in low place where water stands in winter 152 Comment
  CAS-BOT-BC272201  Leymus triticoides Carl B. Wolf 1932-6-13 3726 Orange Fullerton, Malvern and Nicholas Aves. 53 Comment
  JEPS71200  Leymus triticoides L. M. Booth 1932-6-7 1156 Orange Newport Bay Comment
  RSA649674  Lilium humboldtii subsp. ocellatum R. E. Riefner 2000-6-30 20 -594 Orange NCCP North Ranch Policy Plan Area. N Fremont Canyon at Donaldson Ranch adjacent to powerline crossing on W fork of Fremont Canyon drainage. 427 Comment
  CDA23580  Limonium binervosum A. Thomas, Mark A. Elvin 2006-9-23 609237 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
  SD80979  Limonium californicum Ted H. Thorsted Jr. 1970-8-17 33 Orange ca. 4 miles south of Seal Beach, NE of Pacific Coast Hwy at Bolsa Chica Salt Marsh Comment
  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
  RSA401668A  Limonium californicum var. mexicanum F. W. Peirson 1924-8-24 s.n. Orange 2.5 miles from Balboa on road inland. Comment
  RSA723487  Limonium duriusculum R. E. Riefner 2005-9-9 5 -654 Orange City of Lake Forest, Aliso Creek near Portola Pkwy. at El Torro Rd. 225 Comment
  RSA723491  Limonium duriusculum R. E. Riefner 2005-10-5 5 -707 Orange City of Irvine, Bonita Creek, along La Salud St. near Milano Dr. 9 Comment
  RSA658207  Limonium perezii T. A. Daubert 1991-5-19 672 Orange Tucker Wildlife Sanctuary, Modjeska Canyon nature trail. Comment
  RSA731656  Limonium ramosissimum Fred M. Roberts 2007-10-29 6623 Orange Niguel Hill: Laguna Niguel, Seaview Park, 1.3 km ENE Aliso Peak. 265 Comment
  IRVC29782  Limonium sinuatum Mark A. Elvin, Dean Kelch 2006-12-9 5294 Orange Newport Backbay; Big Canyon, lower end. Southern Coastal 3 Comment
  CAS-BOT-BC226770  Linanthus californicus Munz; Street; Williams 1919-5-3 2629 Orange Santa Ana River Canon [Canyon] Comment
  CAS-BOT-BC226774  Linanthus californicus B. D. Stark 1931-3-12 1938 Orange West slope of Santa Ana Mts., 3 mi. no. of Modjeska's Home 304 Comment
  CAS-BOT-BC226777  Linanthus californicus C. B. Wolf 1931-3-6 1831 Orange 1 1/2 miles below Trabuco Oaks along Trabuco Canyon road, west slope of Santa Ana Mts. 304 Comment
  CAS-BOT-BC226779  Linanthus californicus T. Cass 1975-4-11 1517 Orange Ladd Canyon Comment
  RSA468463  Linanthus californicus Albert J. Perkins 1920-5-16 s.n. Orange Trabuco Canyon, Comment
  UCD39066  Linanthus californicus Beecher Crampton 1963-5-7 6789 Orange 11 miles northeast of San Juan Capistrano, State Hwy. 74, Lower San Juan Canyon, Santa Ana Mtns. Comment
  RSA1925  Linanthus californicus B. D. Stark 1931-3-12 1087 Orange Santa Ana Mountains, 3 miles north of Modjeska's home 305 Comment
  RSA734681  Linanthus liniflorus A. C. Sanders, T. B. Salvato 2008-5-13 35337 Orange Lomas de Santiago, Santiago Canyon at mouth of Hangman Tree Canyon and lower Hangman Tree Cyn, c. 1/2 mile below Modjeska Canyon confluence. 366 Comment
  UCR37803  Linanthus liniflorus 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
  RSA749524  Linaria canadensis var. texana Fred M. Roberts 2008-4-8 6849 Orange Lomas de Santiago: Loma Ridge, Upper Dripping Springs Cyn., 1.0 km NE Bee Peak, Irvine Ranch Conservancy. 458 Comment
  CDA41685  Lindernia dubia var. anagallidea Wes Humphrey 1973-7-19 s.n. Orange 7231 Irvine Blvd., Santa Ana (Tustin). 0 Comment
  RSA698102  Liriodendron tulipifera A. Metzgar 1937-03 s.n. Orange Near San Juan Capistrano. Comment
  RSA783494  Lithophragma J. D. Olmsted 1959-4-23 456 Orange Spring Trail, Beacon Pines Ranch; 9 miles SW of Corona. Drainage area to Santa Ana River. 762 Comment
  RSA733826  Lithophragma affine Minor Warne 1934-04 s.n. Orange Laguna Canyon Forks Comment
  IRVC21406  Lobelia dunnii var. serrata A. S. Boughey 1968-7-9 405 Orange Santa Ana mtns: upper Santiago Canyon. Peninsular Ranges Comment
  RSA782058  Lobularia maritima Mark A. Elvin 2003-2-23 2313 Orange Irvine, San Joaquin Marsh along the berm of San Diego Creek 3 Comment
  CAS-BOT-BC269106  Lolium perenne Ira L. Wiggins 1965-10-24 20290 Orange At corner of Yorba Linda and State College Boulevards, Fullerton Comment
  SEINET192714 Image available Lolium perenne C. B. Wolf 1932-6-13 Orange Fullerton Rose Drive 53 Comment
  UCR193070  Lolium perenne subsp. multiflorum A. C. Sanders, Mitch Provance 2008-5-20 35419 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago area, Santiago Creek Canyon, c. 3/4 mile below Modjeska Canyon confluence 355 Comment
  UCR2521  Lolium perenne subsp. multiflorum F. M. Reed 1928-5-22 5976 Orange South Coast, Laguna Village 30 Comment
  CLARK-A1528-2431  Lomatium lucidum John C. Roos 1960-5-30 Orange Santa Ana Mountains 1066 Comment
  UCR174025  Lonicera subspicata A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33052 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
  RSA7459  Lonicera subspicata var. denudata C. B. Wolf 1933-8-24 5377 Orange 1/2 mile below summit of Bedford Motorway, east slope of Santa Ana Mountains. 976 Comment
  UC1125290  Lonicera subspicata var. denudata A. Lewis Apr 1934 404 Orange Verdugo Canyon Cleveland National Forest, Corona Quadrangle 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
  HSC95603  Lotus hamatus D. Atwood 1993-3-27 17693 Orange Corona Del Mar State Park along Newport Coast Drive. 0 Comment
  RSA2591  Lotus heermannii J. T. Howell 1928-7-10 1092 Orange Trabucco Canyon, Santa Ana Mts. 518 Comment
  RSA603367  Lotus heermannii Scott D. White, Brian Leatherman 1997-6-12 5338 Orange East of San Juan Capistrano: San Juan Creek beteen Highway 74 bridge and Mission Vieja site, i.e. ca. 2 - 4 miles E of I-15 [Interstate 5] / Highway 74 junction. 46 Comment
  RSA0036647  Lotus heermannii Robt. Allen, Richard Newell 2009-7-11 s.n. Orange Peninsular Ranges; Santa Ana Mountains regions: Upper Santiago Canyon, just past community of Modjeska Canyon, Fleming Ranch, East end of Modjeska Canyon Road. 621 Comment
  POM50645  Lotus micranthus L. R. Abrams 1901-06 1825 Orange Santiago Peak Trail 915 Comment
  UCR174218  Lotus purshianus A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33042 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
  UCR193377  Lotus purshianus A. C. Sanders, Mitch Provance 2008-5-20 35394 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
  UCR191238  Lotus salsuginosus A. C. Sanders, Fred M. Roberts 2008-4-22 34988 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
  RSA699490  Lotus salsuginosus H. Dittmer 1932-5-16 s.n. Orange Road to Irvine Dam 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
  HSC98259  Lotus scoparius J. J. Wagoner 1965-4-11 14 Orange 6 mi. N of Modjeska Canyon near Irvine Lake off of Irvine Rd. 152 Comment
  SEINET2073834  Lotus scoparius R. Beal 1980-5-6 Orange Dana Point, above Pacific Ocean, top of sand hill. Comment
  UCR220035  Lotus scoparius subsp. scoparius Rebecca T. Vo 2010-6-1 s.n. Orange South Coast, Huntington Beach, Santa Ana River Bike path on west side of the mouth of the Santa Ana River, near Orange County Sanitation Treatment Plant, north of Pacific Coast Hwy and east of Brookhurst St. 1 Comment
  IRVC2251  Lotus scoparius subsp. scoparius C. Hinesly 1965-1-30 Orange [Newport] Back Bay. Newport Beach Comment
  UCR193062  Lotus scoparius var. scoparius A. C. Sanders, Fred M. Roberts 2008-5-6 35219 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hicks Canyon near Irvine Ranch gate and road junction to cement plant 180 Comment
  POM250348  Lotus strigosus I. W. Clokey 1932-3-1 5328 Orange Laguna Beach. Comment
  RSA680915  Lotus strigosus Scott D. White 2003-3-21 8800 Orange Santa Ana Mountain Foothills: Rancho Mission Viejo. East-facing slopes above an unnamed tributary to San Juan Creek. 122 Comment
  UC864909  Lotus strigosus I. W. Clokey 1932-3-1 5328 Orange Laguna Beach Comment
  UCR281557  Lotus strigosus Mitch Provance, Jeremiah George 2017-3-20 317- 114 Orange West Coyote Hills, Fullerton, vicinity of Utility Access Roads E of Gilbert Street and N of Castlewood Dr., on land previously occupied by oil fields. 137 Comment
  RSA542578  Lotus strigosus var. strigosus Fred M. Roberts 1988-3-15 3846 Orange Rancho Mission Viejo: Verdugo Canyon, 2.6 km ENE Point Rancho Survey Mark 149 Comment
  IRVC17284  Lotus strigosus var. strigosus Karlin G. Marsh 1980-5-5 Orange Rancho Mission Viejo: Planning area; along road way. Southern Coastal Comment
  RSA16338  Lotus unifoliolatus P. C. Everett 1935-6-18 7196 Orange Santa Ana Mts., Main Divide Motorway to Santiago Pk., 1 mi. from Ortega Highway. 732 Comment
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Dec 14 2011
  RSA564320  Lotus unifoliolatus B. Pitzer 1992-5-27 1966 Orange Cleveland National Forest. Along road (3S04) to Blue Jay Group Campground, off State Hwy 74 (Ortega Hwy). Approx. 2 mi. (airline) W of El Cariso Campground. 762 Comment
  RSA406363  Lotus wrangelianus M. B. Dunkle 1933-3-5 3086 Orange San Juan Canyon 304 Comment
  UCR138409  Ludwigia repens Scott D. White, Brian Leatherman 1997-6-12 5343 Orange Santa Ana Mtn. foothills, E of San Juan Capistrano: San Juan Creek between Hwy 74 bridge and Mission Vieja site, i.e. c. 2-4 mi east of Hwy I-15/Hwy 74 junction 76 Comment
  CAS-BOT-BC198413  Lupinus albifrons var. albifrons Andrew S. Wheeler 2009-5-12 40305 RSA Orange Long Canyon road, between Blue Jay Campground and Convict Camp, 4 miles west of Lake Elsinore Comment
  RSA413650  Lupinus albifrons var. eminens Albert J. Perkins 1923-6-24 s.n. Orange Silverado Canyon Comment
  JEPS65411  Lupinus bicolor Alice King 1908-4-18 Orange Santa Ana Mts. Comment
  UC527213  Lupinus excubitus C. B. Wolf 1931-5-20 2056 Orange along Santa Fe R.R. 1 mi w Esperanza (Santa Ana Canyon); Santa Ana Canyon 106 Comment
  IRVC17057  Lupinus excubitus var. hallii A. S. Boughey 1969-5-3 430 Orange Black Star Canyon on seaward side near crest. Santa Ana Mountains Comment
  IRVC20663  Lupinus excubitus var. hallii A. S. Boughey 1969-5-3 430 Orange Black Star Canyon on seaward side near crest. Santa Ana Mountains Comment
  IRVC2307  Lupinus excubitus var. hallii Pat Rolfe 1965-3-30 s.n. Orange Trabuco Canyon. Santa Ana Mountains Comment
  RSA13143  Lupinus excubitus var. hallii Percy C. Everett 1935-6-18 7182 Orange Santa Ana Mts., Main Divide Motorway to Santiago Pk., 1 mi. from Ortega Highway. 732 Comment
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Dec 14 2011
  RSA503878  Lupinus excubitus var. hallii N. C. Cooper 1949-5-1 3942 Orange San Juan Canyon 610 Comment
  RSA503884  Lupinus excubitus var. hallii M. B. Dunkle 1938-5-28 5285 Orange San Juan Canyon Comment
  CHSC13495  Lupinus hirsutissimus T. N. Casale 1974-3-11 3 Orange On side of road, ca. 7.3 mi ne of the Mission San Juan Capistrano on Hwy 74. 243 Comment
  HSC14829  Lupinus hirsutissimus S. M. Clapp 1966-4-7 17 Orange 3 mi. from Modjeska Canyon towards Silverado Canyon 152 Comment
  IRVC2325  Lupinus hirsutissimus Mike McCartin 1965-4-3 s.n. Orange Newport Beach, [Newport] Back Bay Southern Coastal Comment
  RSA0042559  Lupinus hirsutissimus Paul Shirokawa 1998-4-24 6 Orange Cleveland National Forest; Trabuco Ranger District, 2.9 miles from Ortega Highway (State Highway 74) on North Main Divide Road. 975 Comment
  CAS-BOT-BC94726  Lupinus latifolius R. C. Wenk; P. Hopkinson; M. Hammond; P. Brownsey 2008-3-24 719 Orange Chino Hills State Park. South Ridge Road W of San Juan Hill, going W from Equestrian Staging Area. Top of ridge 1450 Comment
  CAS-BOT-BC217749  Lupinus longifolius E. R. Johnson 1932-4-15 2957 Orange Rancho Santa Ana, 1 mi. NW of Roundtop (Section 16) 457 Comment
  RSA413758  Lupinus longifolius Samuel R. Tyson 1942-6-18 s.n. Orange San Dimas Canyon 1555 Comment
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Nov 15 2013
  UC1595603  Lupinus microcarpus var. microcarpus Fred M. Roberts Jr. and Carol A. Roberts 1989-4-7 4262 Orange 0.6 km nw Moulton Peak; Aliso-Wood Canyon Regional Park, Upper Wood Canyon 131 Comment
  IRVC8673  Lupinus sparsiflorus Charles W. Sexton 1965-3-27 s.n. Orange Ortega Highway out of San Juan Capistrano Southern Coastal Comment
  RSA0041968  Lupinus sparsiflorus Paul Shirokawa 1998-5-7 25 Orange Cleveland National Forest: Trabuco Ranger District, 4.15 miles from Ortega Highway (State Highway 74) on North Main Divide Road. 1066 Comment
  IRVC15180  Lupinus sparsiflorus subsp. sparsiflorus Gordon A. Marsh, K. Conrey 1977-4-14 s.n. Orange Lomas de Santiago: Lomas Ridge, 1/4mi NNW Rattlesnake Canyon Reservoir Dam. Southern Coastal Comment
  UC1129752  Lupinus succulentus A. Lewis Mar 1934 348 Orange San Juan Hills; Corona Quad., San Juan Hills 396 Comment
  UCR100308  Lupinus succulentus B. G. Pitzer 1997-4-15 3146 Orange San Joaquin Hills, Crystal Cove State Park, north of the N end of the City of Laguna Beach. Along Moro Canyon Trail, from beginning to a point c. 1.75 mi. up the canyon. 49 Comment
  IRVC21926  Lupinus succulentus N. D. Johnson 1985-3-8 s.n. Orange Newport Beach: Corona del Mar, Jasmine Canyon; northeast-facing canyon slope in Erodium, Medicago and Avena plant association. Southern Coastal Comment
  RSA0055061  Lupinus succulentus Jim Shevock 1971-3-8 757 Orange Trabuco Canyon, Santa Monica Mountains. 396 Comment
  IRVC2360  Lupinus truncatus D. Ibbetson 1965-4-10 s.n. Orange Trabuco Canyon. Santa Ana Mountains Comment
  UC450772  Lupinus truncatus Fay A. MacFadden 1931-3-1 2939 Orange Laguna Beach Comment
  POM4188  Lycium californicum Philip A. Munz 1918-5-5 2196 Orange Laguna Beach. Comment
  POM4211  Lycium californicum D. L. Crawford 1916-5-5 s.n. Orange Laguna Beach. Comment
  POM4215  Lycium californicum D. L. Crawford 1916-7-24 741 Orange Laguna Beach. Comment
  RSA428835  Lycium californicum Freda Detmers 1929-5-12 s.n. Orange Capistrano Beach Comment
  SD237629  Lycium californicum T. B. Salvato 2010-9-27 5101 Orange South Coast: Dana Point Headlands, Harbor Point Park, south of Scenic Drive and Cove Road, beyond the end of Green Lantern Street, overlooking Dana Point Harbor (Dana Point 7.5'Q) 52 Comment
  SD241893  Lythrum adsurgens Lawrence M. Booth 1932-7-19 1282 Orange Bolsas Marsh. Comment
  RSA0014851  Lythrum californicum Fred M. Roberts 1999-7-22 5250 Orange Lomas de Santiago: Lomas Ridge, tributary to Limestone Canyon at Dripping Springs. Limestone Wilderness Park. 415 Comment
  UC536934  Lythrum californicum Lawrence M. Booth 1932-6-4 1147 Orange Newport Lagoon Comment
  UCR193929  Lythrum californicum A. C. Sanders, Fred M. Roberts 2008-7-16 35843 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Dripping Springs off Limestone Canyon, c. 7.5 mi. ESE of Tustin 391 Comment
  RSA39331  Lythrum hyssopifolia E. L. Paddock 1943-5-19 12748 Orange Low depression, Stewart Tank Farm, Union Oil co., 1 miles W of Brea Comment
  UCR193384  Madia gracilis A. C. Sanders, Mitch Provance 2008-5-20 35390 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
  POM95353  Malacothamnus fasciculatus F. W. Peirson 1925-4-22 5748 Orange 5 miles south of Laguna Beach Comment
  POM8303  Malacothrix glabrata P. A. Munz, R. D. Harwood 3384 Orange Temescal Canyon. 366 Comment
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Jul 6 2014
  UCR193543  Malacothrix saxatilis A. C. Sanders, Fred M. Roberts 2008-7-3 35669 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor 415 Comment
  RSA721107  Malacothrix saxatilis Minor Warne 1934-4-28 s.n. Orange Highway Head Peters Canyon Comment
  UCR209661  Malacothrix saxatilis var. saxatilis Fred M. Roberts 2008-5-16 6978 Orange South Coast, Dana Point Headlands, Center for Natural Lands Mgmt. Preserve, along north slopes above Dana Strand Beach, 0.8 km west-northwest of the Marine Institute, Dana Point Harbor 45 Comment
  JEPS112967  Malacothrix saxatilis var. tenuifolia Dean W. Taylor 1994-6-7 14410 Orange Newport Bay; along Backbay Drive at the junction with San Joaquin Hills Drive 6 Comment
  RSA549990  Malacothrix saxatilis var. tenuifolia Scott D. White 1992-9-23 857 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
  UCSB48029  Malosma laurina Roberts, Fred 1980-7-7 Orange Santa Ana Mtns.; San Juan Canyon, Calif. Rte. 74; 2.2 km. ENE San Juan Guard Station; 0.6 km W Bench Mark 1100 305 Comment
  UCD116410  Malva assurgentiflora F. C. Boutin 1967-4-23 1623 Orange Santa Clemente Island: at N end of island SW of airstrip runway ca. 25 mi. from coast. Comment
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Nov 27 2013
  UCR109662  Malva parviflora G. S. Nuessly 1980-11-27 s.n. Orange Tustin. SE corner of 17th St. and Yorba Ave. 52 Comment
  RSA649333  Malva parviflora C. J. Parenti 1971-3-7 D 15 Orange Collected in empty lot between West and Walnut Streets. About 1000 ft. from the Disneyland Hotel. 30 Comment
  SD193050  Malva pseudolavatera Scott D. White, Justin Wood 2008-4-22 11907 Orange Chino Hills: Telegraph Canyon Road, east of Carbon Canyon Regional Park. 152 Comment
  UCR258350  Malvella leprosa Fred M. Roberts 2014-4-21 7849 Orange South Coast, SAN JOAQUIN HILLS: Laguna Lake 1 (Upper Laguna Lake), south basin 113 Comment
  CDA35815  Malvella leprosa Robert L. Pope 1957-5-17 Orange [No other data] 0 Comment
  IRVC26530  Manfreda Mark A. Elvin 2004-5-22 3460 Orange UCI Arboretum Southern Coastal 15 Comment
  RSA441222  Marah macrocarpa L. C. Wheeler 1934-1-14 2356 Orange 1 mile E mouth of Aliso canyon near Laguna. 30 Comment
  RSA77638  Marah macrocarpa F. W. Peirson 1924-2-10 4532 Orange Balboa Beach, mainland near bridge 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
  RSA734903  Marrubium vulgare A. C. Sanders 2008-5-28 35440 Orange Lomas de Santiago, Bee Flat at mouth of Limestone Canyon. 264 Comment
  RSA697834  Marrubium vulgare Minor Warne 1934-4-14 s.n. Orange Laguna Canyon Forks. Comment
  CAS-BOT-BC348163  Matricaria discoidea Ira L. Wiggins 1966-3-22 20553 Orange Silverado Canyon about 1/2 mi. below entrance to Cleveland National Forest Comment
  RSA923  Matricaria matricarioides J. T. Howell 1928-2-7 822 Orange Near the ranch houses, Rancho Santa Ana 152 Comment
  RSA269262  Mazus japonicus G. D. Barbe 1973-8-9 1694 Orange Bordier's Nursery, 7231 Irvine Blvd., Santa Ana (Tustin). Comment
  RSA594896  Meconella denticulata Fred M. Roberts, Sandy Leatherman, B. Leatherman 1994-4-24 4909 Orange Santa Ana Mountains: San Juan Canyon, CA route 74, Lower San Juan Picnic Ground. 354 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
  IRVC19541  Medicago minima R. L. Allen 1983-1 1983 Orange Irvine: near NE corner of Culver at Irvine Blvd. Southern Coastal Comment
  IRVC19397  Medicago polymorpha R. L. Allen 1983-2-12 A626 Orange Fullerton; Hillcrest Park, slope bordering E Valley View Drive. Southern Coastal Comment
  IRVC2371  Medicago polymorpha D. Van Gorden 1965-5-2 s.n. Orange Anaheim and Meyer Field. Costa Mesa Comment
  IRVC2373  Medicago polymorpha Anonymous 1965-3-14 Orange Dana Point. Southern Coastal Comment
  RSA184191  Medicago polymorpha I. L. Wiggins 1966-3-16 20524 Orange 1 mile above Rangers house Firestone Boy Scouts Reservation. Comment
  UCSB48053  Medicago polymorpha Fritzke, Sue; Roberts, Fred 1982-4-3 Orange Dana Point; hills, 1.0 km. N Dana Hills High School; 1.9 km. W Marco Forster Junior High School 100 Comment
  RSA746482  Medicago rigidula R. E. Riefner Jr. 2008-5-19 08 -99 Orange City of San Juan Capistrano, 0.2 mi E of Antonio Pkwy on Hwy 74 (Ortega Hwy) 88 Comment
  JEPS65531  Medicago sativa Lawrence M. Booth 1932-5-19 1077 Orange Newport Bay 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
  UCR230879  Melaleuca nesophila R. E. Riefner Jr. 2011-7-1 11- 82 Orange South Coast, city of Newport Beach, beach area west of the end of Cameo Shores Road, south c. 1 mi from Poppy Avenue 2 Comment
  RSA722086  Melaleuca nesophila R. E. Riefner Jr. 2007-3-18 7 -151 Orange City of Newport Beach, N shore of Newport Bay, North Star Beach, general vicinity of North Star Ln. and Polaris Dr. 9 Comment
  UCR140883  Melaleuca viminalis Robert DeRuff 1987-7-18 301 Orange Southern Coast, Newport Beach, Big Canyon, near Jamboree Road 11 Comment
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Jun 5 2006
  CAS-BOT-BC281592  Melica imperfecta Helen D. Geis 1902-1-1 555 Orange Unspecified Comment
  CAS-BOT-BC281595  Melica imperfecta John Thomas Howell 1927-6-17 2547 Orange N side of Santa Ana Canon 152 Comment
  UCR100307  Melica imperfecta B. G. Pitzer 1997-4-15 3141 Orange San Joaquin Hills, Crystal Cove State Park, north of the N end of the City of Laguna Beach. Along Moro Canyon Trail, from beginning to a point c. 1.75 mi. up the canyon. 49 Comment
  CDA4182  Melilotus albus D. G. Kelch 2006-12-9 6 .568 Orange Irvine. University Dr along tidal creek just E of I-73. Comment
  RSA590960  Melilotus albus Fred M. Roberts, Sandy Desimone 1991-3-28 4764 Orange Lake Forest: Along Regency Road near Brighton Lane, 5.4km SSW Bolero lookout. 244 Comment
  RSA699735  Melilotus albus Keith E. Hoffmaster 1927-2-12 s.n. Orange Santa Ana. Comment
  IRVC2405  Melilotus indicus L. McCabe 1965-4-14 s.n. Orange Newport Beach; Corona del Mar. Southern Coastal Comment
  IRVC2427  Melilotus indicus C. Hooven 1965-4-17 s.n. Orange Santa Ana Heights; Spruce Ave. and Palisades. Southern Coastal Comment
  IRVC2431  Melilotus indicus C. Weir 1965-4-17 s.n. Orange Newport Beach; Balboa Island. Southern Coastal Comment
  UCR154336  Melilotus indicus Mark A. Elvin 2004-5-2 3410 Orange Southern Coastal, Irvine: San Joaquin Freshwater Marsh, near Campus and University Drives; 1.7 km (air) NNW UC Irvine campus center 3 Comment
  RSA791739  Melinis repens R. E. Riefner Jr. 2011-8-16 36100 Orange Newport Beach, Orange County Parks and Recreation lands, along Newport Coast Drive, between Vista Ridge Rd. & Alteza Rd. 281 Comment
  SEINET3828309  Melinis repens R. E. Riefner Jr. 2011-1 11 -98 Orange Fuel modification areas. Newport Beach, Orange County Parks & Recreation lands, along Newport Coast Drive, between Vista Ridge& Alteza Rd. 281 Comment
  RSA759106  Mentzelia Robt. Allen, Genevieve Walden 2008-6-26 s.n. Orange Modjeska Peak. N face, along access road up Modjeska Peak, outside the sharp bend in the extreme N end of the road. Survey point 47. 1514 Comment
  SD236328  Mentzelia micrantha A. C. Sanders, Fred M. Roberts, Amber ONeal 2008-5-9 35313 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, along fire line/bulldozer cut, c. 1.5 mi. east of Walnut Cyn Reservoir 345 Comment
  UCR192111  Mentzelia micrantha A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35313 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along fire line/bulldozer cut, c. 1.5 mi. east of Walnut Cyn Reservoir 346 Comment
  RSA759212  Mentzelia veatchiana Robt. Allen, Reginald Durant 2008-5-16 s.n. Orange Modjeska Peak, S face, base of a steep fire break cut from the summit down to the access road. Survey point 61. 1634 Comment
  IRVC17950  Mesembryanthemum crystallinum A. B. McGee 1980-6-26 Orange San Joaquin Freshwater Marsh, west side, roadside. Irvine Comment
  JEPS42917  Mesembryanthemum crystallinum L. M. Booth 1932-6-29 1224 Orange Newport Bay Comment
  POM201709  Mesembryanthemum crystallinum L. M. Booth 1932-6-29 1224 Orange Newport Bay. Comment
  UCR220024  Mesembryanthemum crystallinum Rebecca T. Vo 2010-6-5 s.n. Orange South Coast, Huntington Beach, Santa Ana River Bike path on west side of the mouth of the Santa Ana River, near Orange County Sanitation Treatment Plant, north of Pacific Coast Hwy and east of Brookhurst St. 1 Comment
  UCR3313  Mesembryanthemum crystallinum Cary Brown 1964-3-28 28364- 01 Orange South Coast, Hwy 101 alternate, 1 mile north of San Clemente 6 Comment
  SEINET3155128  Mesembryanthemum nodiflorum L. Abrams 1903-4-20 3280 Orange Near San Juan Comment
  UC149125  Mesembryanthemum nodiflorum LeRoy Abrams 1903-4-20 3280 Orange near San Juan (along the seashore); Southern California Comment
  RSA286421  Mesembryanthemum nodiflorum Mary H. O Brien 1976-5-1 s.n. Orange Bolsa Chica Bay 100 m e. of Hwy 1 opposite Bolsa Chica State Beach entrance station. Edge of a 6X10 meter salt burn. 0 Comment
  RSA535967  Micropus californicus Fred M. Roberts 1989-4-17 4266 Orange SANTA ANA MTNS: Central Blind Canyon, 7.3km SW Sierra Peak, 2.4km N Irvine Lake. 259 Comment
  RSA580940  Microseris douglasii subsp. platycarpha D. E. Bramlet 1994-4-30 2375 Orange At the base of the San Joaquin Hills and E of the Quail Hill area. Open flatlands 152m NW of the end of San Canyon Ave. and some 396m S of the San Diego Freeway. 42 Comment
  UCR142519  Microseris douglasii subsp. platycarpha D. E. Bramlet 2000-4-17 2983 Orange Peninsular Range; Santa Ana Mtns., 2 km west of Blind Canyon and 305m north of Irvine Park, 183m southwest of MWD access road 220 Comment
  UCR171017  Microseris douglasii subsp. platycarpha R. E. Riefner Jr. 2006-4-12 06- 117 Orange Irvine, north foot of San Joaquin Hills, vicinity of Quail Hill, SSW of 405 Freeway and Shady Canyon Rd. 46 Comment
  RSA599647  Microseris lindleyi Fred M. Roberts 1995-4-21 4928 Orange Irvine: San Joaquin Hills, Quail Hill area near end of San Canyon Road, 2.9 km ENE French Hill. 49 Comment
  UC445115  Mimulus H. M. Hall 1913-5-28 9405 Orange Santiago Canyon Comment
  UC943905  Mimulus M. Van Rensselaer 1944-11-26 1876 Orange about 2 mi ne Laguna Beach; Laguna Canyon Comment
  RSA678722  Mimulus aurantiacus Fred M. Roberts, Robert L. Allen, Carol Roberts 2003-5-11 5853 Orange Dana Point Headlands: 0.8km SSW Richard Henry Dana School north of Marguerita Drive. 76 Comment
  CLARK-A1528-858  Mimulus aurantiacus subsp. australis Jim Hearne, Geoffrey Matthews, Robin Maetche 1971-5-15 Orange Santa Ana Mountains Comment
  RSA649084  Mimulus aurantiacus subsp. australis Karl Price 1988-4-29 20 Orange An unnamed side canyon within Hot Springs Canyon. It is on Hot Springs Canyon Rd., 0.75 mi. North of Ortega Hwy. (74), 12.6 mi. East of San Juan Capistrano. 305 Comment
  SEINET10896230  Mimulus aurantiacus subsp. australis Melvin L. Conrad, David B. Dunn 1973-6-13 Conrad 7134 Orange In vicinity of laguna beach. Corolla yellow. 152 Comment
  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
  RSA131398  Mimulus aurantiacus var. pubescens E. K. Balls 1958-6-27 23279 Orange Road to Santiago Peak from Silverado Canyon, 3.8 mi. from gate. 976 Comment
  UCSB48356  Mimulus aurantiacus var. pubescens Roberts, Fred 1982-4-18 Orange Santa Ana Mtns; San Juan Canyon; Hwy 74; 0.6km SW Lower San Juan Picnic Ground; 1.9km WNW Sitton Peak 420 Comment
  RSA16344  Mimulus aurantiacus var. puniceus Percy C. Everett 1935-6-18 7189 Orange Santa Ana Mts., Main Divide Motorway to Santiago Pk., 1 mi. from Ortega Highway. 732 Comment
  RSA564321  Mimulus aurantiacus var. puniceus B. Pitzer, S. Hemstreet 1992-5-27 1965 Orange Cleveland National Forest. Along road (3S04) to Blue Jay Group Campground, off State Hwy 74 (Ortega Hwy). Approx. 2 mi. (airline) W of El Cariso Campground. 762 Comment
  UCD122399  Mimulus aurantiacus var. puniceus H. E. McMinn 1949-7-9 5599 Orange about two miles east of San Juan Capistrano on Highway 74. Comment
  RSA542496  Mimulus cardinalis Bernard Jaroslow 1989-7-4 B- 26 Orange Santiago Canyon: near upper Santiago Creek. Comment
  RSA435530  Mimulus cardinalis Albert J. Perkins 1912-09 s.n. Orange Bank of stream East Orange Co. Comment
  POM18132  Mimulus clevelandii P. A. Munz 1923-9-7 7768 Orange Along trail from Holy Jim Canyon to summit of Santiago Peak Comment
  RSA17495  Mimulus clevelandii Percy C. Everett 1936-8-28 8233 Orange Main Divide Motorway, Head of Trabuco Canyon 1159 Comment
  RSA727  Mimulus floribundus Thomas Howell 1927-7-27 492 Orange Santa Ana River bottom. Comment
  RSA734757  Mimulus floribundus A. C. Sanders, T. B. Salvato 2008-5-13 35335 Orange Lomas de Santiago, Santiago Canyon at mouth of Hangman Tree Canyon and lower Hangman Tree Cyn, c. 1/2 mile below Modjeska Canyon confluence. 366 Comment
  RSA769079  Mimulus guttatus Minor Warne 1934-04 s.n. Orange Laguna Hills Comment
  POM48282  Mimulus pilosus I. M. Johnston 1924-7-10 s.n. Orange Laguna canyon Comment
  RSA698204  Mirabilis laevis Minor Warne 1934-03 s.n. Orange Laguna Canyon Forks 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
  UCR220305  Mirabilis laevis Dick Newell, Don Millar, Jutta Burger 2010-3-16 011 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Agua Chinon Wash 250 m north of Hwy 241 toll road 201 Comment
  POM201768  Mirabilis laevis var. crassifolia L. M. Booth 1932-5-12 1035 Orange Newport Bay. Comment
  POM6381  Mirabilis laevis var. crassifolia P. A. Munz, L. T. Street, G. Williams 1919-5-3 2672 Orange Santa Ana River Canyon. Comment
  RSA0126621  Mirabilis laevis var. crassifolia Fred M. Roberts 2012-4-24 7501 Orange San Joaquin Hills: Buck Gully, W of intersection of Ridge Park Road and Newport Coast Drive, 1.5 km W Signal Peak. 179 Comment
  RSA585058  Mirabilis laevis var. crassifolia D. Atwood 1993-3-27 17707 Orange Corona Del Mar State Park along Newport Coast Drive. 0 Comment
  SEINET3161558  Mirabilis laevis var. crassifolia W. B. Crockatt sn Orange Capistrano Valley 76 Comment
  UCR281191  Modiola caroliniana Roger E. Reinke 2011-5-16 s.n. Orange Coastal Plain, Santa Ana, residence at 12782 Bubbling Well Road, backyard, end of driveway 41 Comment
  CAS-BOT-BC435043  Mollugo verticillata L. R. Abrams 1901-6-1 1769 Orange Laguna Comment
  UC1543025  Mollugo verticillata Donald G. Nelson 1936-7-26 442 Orange n of Newport Beach (Costa Mesa); Costa Mesa Comment
  RSA0042247  Monanthochloe littoralis Valerie Soza, LeRoy J. Gross, Will Miller, Fred Roberts, Gary D. Wallace 2001-4-4 1102 Orange Seal Beach National Wildlife Refuge: Seal Beach U.S. Naval Weapons Station, across access road from Nature Center (Bldg 226). 3 Comment
  UC537290  Monanthochloe littoralis Lawrence M. Booth 1932-5-12 1046 Orange Newport Bay Comment
  RSA0059067  Monanthochloe littoralis CNPS Accuracy Assessment Team 2014-7-9 9563 .2 Orange Upper Newport Bay Nature Reserve. Comment
  IRVC28200  Monardella hypoleuca A. C. Sanders, Mark A. Elvin 2005-9-2 31609 Orange Upper Holy Jim Canyon, a major tributary of Trabuco Cyn, along trail in the switchbacks. Santa Ana Mountains 970 Comment
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Aug 13 2012
  RSA0005461  Monardella hypoleuca J. T. Howell 1928-7-10 1094 Orange Black Star Canyon, Santa Ana Mts. 305 Comment
  CAS-BOT-BC221718  Monardella hypoleuca subsp. intermedia Carl B. Wolf 1936-6-22 8003 Orange Santa Ana Mts., 3 mi. above F. S. Gate in Santiago Canyon, along truck trail to Modjeska Pk. 762 Comment
  UC2035996  Monardella macrantha subsp. hallii P. C. Everett 1935-6-19 7223 Orange Santa Ana Mts., Main Divide Motorway 1.5 mi below summit Santiago Peak, E slope 1310 Comment
  IRVC26699  Moraea fergusoniae Mark A. Elvin, J. Liou, J. Carpenter, J. Nguyen 2004-3-8 3173 Orange UCI Arboretum Southern Coastal 15 Comment
  RSA704079  Muhlenbergia microsperma D. E. Bramlet, Fred M. Roberts 2003-5-1 3431 a Orange Donna O'Neill Reserve. The site is located 61m west of Cristianitos Rd. and 396m north of the E-W Road. 121 Comment
  UCD86852  Muhlenbergia microsperma Elizabeth Wilson 1940-5-24 s.n. Orange Laguna beach to Santa Ana. Comment
  UCSB48199  Muhlenbergia rigens Roberts, Fred 1981-6-26 Orange Viejo Cyn., 0.4 km N Calif. Rte. 74; 2.7 km ENE San Juan Guard Station; Santa Ana Mts. 311 Comment
  RSA587118  Muilla maritima R. E. Riefner 1995-4-28 95 -110 Orange San Clemente State Beach. Comment
  RSA682753  Muilla maritima Scott D. White, Amanda Duchardt 2003-3-27 8847 Orange Canyon bottom and west facing slopes above Canada Gobernadora. 91 Comment
  SEINET3402284  Muilla maritima L. Abrams 1903-4-18 3263 Orange Capistrano Comment
  RSA0059070  Myoporum CNPS Accuracy Assessment Team 2014-7-9 9547 Orange Talbert Nature Preserve. Comment
  POM12404  Najas guadalupensis Philip A. Munz 1922-9-2 6347 Orange Ponds in Laguna Canyon 46 Comment
  RSA6660  Nassella cernua B. D. Stark 1933-5-2 4546 Orange Rancho Santa Ana. 457 Comment
  RSA184108  Nassella pulchra I. L. Wiggins 1966-3-16 20527 Orange Entrance to Firestone Boy Scout Reservation. Comment
  RSA535968  Nassella pulchra Fred M. Roberts 1989-4-17 4267 Orange Santa Ana Mtns: Central Blind Canyon, 7.3km SW Sierra Peak, 2.4km N Irvine Lake,, UTM 37 40 700 m N, 4 32 900m E. 259 Comment
  RSA431564  Nasturtium officinale H. L. Bauer 1929-5-7 s.n. Orange Santa Ana Canyon. Comment
  RSA703024  Nasturtium officinale R. E. Riefner Jr. 2004-8-27 4 -392 [b] Orange City of Irvine, San Diego Creek at 405 freeway. 50 Comment
  RSA113269  Nemacaulis denudata var. denudata E. K. Balls 1955-4-4 20419 Orange Coastal Strand, mouth of Santa Ana River, W bank, Hwy 101 Comment
  RSA734280  Nemacladus ramosissimus A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34643 Orange Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 250 Comment
  RSA0051320  Nemophila menziesii Ophelia Frost 1932-3-28 s.n. Orange 2 miles NW of H.B. Comment
  SEINET6971729  Nemophila menziesii Wanda P. Vestal, A. G. Vestal 1955-3-24 3457 Orange Trabuco Canyon, about 5 miles east of El Toro. Comment
  RSA588783  Nemophila menziesii var. integrifolia Fred M. Roberts, Nicole Orlik 1990-4-11 4715 Orange Santa Ana Mountains: East Fork Upper Long Canyon, along Main Divide Truck Trail, 4.4 kilometers SE Los Pinos Peak. 750 Comment
  UCSB48119  Nemophila menziesii var. menziesii Fritzke, Sue; Roberts, Fred 1982-4-3 Orange Rancho Mission Viejo: Calif. 74; 7.2 km. by road E San Juan Capistrano; 1.3 km. NE Viejo Survey Marker 98 Comment
  IRVC156  Nephrolepis exaltata var. bostoniensis Don Pfirrmann 1965-4-30 HS 535 Orange Newport Beach; 259 Mayflower Drive. Southern Coastal 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
  CDA1049  Nicotiana glauca D. G. Kelch 2006-12-9 6 .542 Orange Along Newport Back Bay Dr. in side canyon. Comment
  JEPS12502  Nicotiana glauca Alice King Apr 1908 Orange Santiago Creek; Santa Ana Mts. Comment
  UC1286994  Nicotiana glauca C. L. Hitchcock 1966-3-15 24144 Orange 1.5 mi e Brea (Stearns Lease) 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
  JEPS59841  Nitrophila occidentalis Lawrence M. Booth 1932-6-7 1157 Orange Newport Bay Comment
  UC729955  Nitrophila occidentalis Carl B. Wolf 1932-6-28 3805 Orange edge of field on Bixby Ave. Bryant Ranch; E of SW corner of NW40 of NW160 91 Comment
  POM14399  Nolina cismontana Philip A. Munz, Johnston 1922-5-18 5315 Orange Santa Ana River Canyon, 3 miles south of Orange Co. line Comment
  UCR113027  Nolina cismontana R. E. Riefner Jr. 2000-3-19 20- 137 Orange Peninsular Range, Santa Ana Mountains, North Ranch Policy Plan Area, along dirt road running N and parallel to Black Star Cyn Road 396 Comment
  RSA0051415  Nolina parryi R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49684 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. 457 Comment
  UC1618040  Nuttallanthus texanus Donald G. Nelson 1935-4-14 283 Orange near Pacific Electric Railway Station, Newport Beach Comment
  RSA98320  Oenanthe sarmentosa F. W. Peirson 1924-2-9 4525 Orange Between Wintersberg and the sea. Comment
  SD43505  Oenothera elata subsp. hirsutissima P. A. Munz 1947-9-10 12133 Orange Edge of garden in river bottom, Rancho Santa Ana, Santa Ana River Canyon. 121 Comment
  UC1007119  Oenothera elata subsp. hirsutissima P. A. Munz 1936-6-30 14171 a Orange 5 mi s Garden Grove 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
  RSA562725  Olea europaea Steve Boyd 1992-5-20 7461 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
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Feb 4 2016
  RSA758013  Oligomeris linifolia D. E. Bramlet 2008-3-26 4127 B Orange Bee Canyon. Bowerman landfill site. 202m S of the Bee Cyn. Access Road, 151m west of landfill entrance. Comment
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Jan 5 2016
  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
  UCR235514  Oncosiphon piluliferum R. E. Riefner Jr. 2011-5-20 11- 57 Orange South Coast, Newport Beach, Coastal Peak Park, East Coastal Peak Road at Ridge Park Road 305 Comment
  RSA649688  Opuntia R. E. Riefner 2000-8-23 20 -733 Orange NCCP North Ranch Policy Plan Area. Fremont Canyon: N. of Santiago Creek & immediately S. of major stream fork 305 Comment
  OBI37758  Opuntia X vaseyi D. J. Pinkava & M. G. McLeod, M. G. McLeod 1970-11-8 312 Orange 1/2 mi E of Warner Airport 914 Comment
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Nov 18 2013
  HSC3800  Opuntia littoralis J. W. Johnson 1961-3-29 Orange Newport Beach, slope overlooking Upper Newport Bay. Comment
  CAS-BOT-BC56864  Opuntia oricola B. D. Stark 1933-1-26 4527 Orange Field redacted by CAS, contact the data manager for more information 182 Comment
  POM317066  Opuntia oricola David Walkington 1962-11-18 62 Orange West side of N Euclid Ave. north of Sunny Hills West Home, Fullerton. 76 Comment
  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
  POM317768  Opuntia vaseyi David Walkington 1963-5-17 169 Orange Above intersection of Dana Cove Park rd. and Green Lantern Dr., continuous slope with Dana Cove Park Rd. Dana Point. 61 Comment
  RSA708238  Orobanche fasciculata Fred M. Roberts, Robert L. Allen, Chris Barnhill, Nancy Hatfield 2005-5-30 6233 Orange Southwest arm of Modjeska Peak, 1.2km SW summit, Main Divide Rd. near jct. of road to summit. 1533 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
  SEINET10875323  Osteospermum ecklonis David B. Dunn 1971-8-13 Dunn 18120 Orange Cultivated plants vicinity of Laguna Beach. Comment
  UC571125  Oxalis albicans subsp. californica Herbert L. Mason 1926-4-25 2927 Orange 5 mi s Laguna Comment
  RSA2071  Oxalis californica Carl B. Wolf 1931-3-6 1858 Orange Trabuco Canyon, 1.5 mile below Trabuco Camp Grounds 549 Comment
  RSA421  Oxalis californica J. T. Howell 1927-6-16 144 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  UCR193383  Oxalis californica A. C. Sanders, Mitch Provance 2008-5-20 35391 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
  UCSB3548  Oxalis californica Kamb, Peter 1948-6-19 Orange Holy Jim Canyon, Santa Ana Mtns. 609 Comment
  RSA799952  Oxalis pes-caprae D. M. Ray 2011-1-19 1 Orange South Coast: Santa Ana River: along right of way road just west of Least Tern Island. 0 Comment
  UCR237933  Oxalis pes-caprae Mark A. Elvin 2003-2-2 2259 Orange South Coast, San Joaquin Marsh, UCI campus SSE of intersection of Jamboree Blvd. and Campus Dr. 2 Comment
  UCR89487  Oxalis pes-caprae Steve Boyd, T. S. Ross 1994-3-22 8203 B Orange Peninsular Range; Santa Ana Mtns., San Juan Canyon along San Juan Creek, near confluence with Hot Springs Canyon 229 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
  UCR227627  Oxytheca trilobata Robt. L. Allen 2003-6-22 12281 Orange Santa Ana Mountains, along North Main Divide Road, 6.3 road mi north of Falcon Group Campground, c. 2.43 air mi northwest of Los Pinos Saddle 1334 Comment
  POM211376  Paeonia californica Carl B. Wolf 1931-3-6 1842 Orange Trabuco canyon, 1/2 mile above Trabuco Oaks, west slope of Santa Ana Mountains. 457 Comment
  RSA787679  Paeonia californica Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49715 Orange Santa Ana Mountains: Bedford Truck Trail, ca. 0.8 km below junction with Main Divide Truck Trail Comment
  CAS-BOT-BC389660  Panicum coloratum R. E. Riefner, Jr. 2014-7-6 14 -218 Orange City of Los Alamitos, along Los Alamitos Channel, E of 605 Fwy., N of Katella Ave., S of Coyote Creek, NE of Oak Academy Park, vicinity of Adobe Dr. and Acorn Ln. 11 Comment
  RSA800228  Panicum dichotomiflorum Justin M. Wood 2010-9-29 2755 Orange Santa Ana Canyon: Santa Ana River, southwest of Green River Golf Course and north of Hwy 91 and Santa Ana River Trail. 128 Comment
  SEINET11261327  Panicum miliaceum A. C. Sanders, Fred M. Roberts 2008-7-16 35865 Orange Peninsular Range, Santa Ana Mountains, Lomas de Santiago, Santiago Creek wash at and above the confluence of Hangmans Tree Canyon (El Toro 7.5' Q).; 0 358 Comment
  RSA594803  Papaver californicum Fred M. Roberts, Sandy Leatherman, B. Leatherman 1994-4-24 4920 Orange Santa Ana Mountains: San Juan Canyon, south side of CA route 74, 1 kilometers NNW San Juan Survey Mark. 268 Comment
  RSA759264  Papaver californicum Robt. Allen, D. Taylor 2008-5-9 s.n. Orange Silverado Canyon, 1.6 road miles EENE above Maple Springs Forest Gate, between Lost Woman Canyon and Spruce Canyon. 766 Comment
  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
  POM50185  Parietaria hespera var. californica Helen D. Gris 1902-1 509 Orange Hills of Orange Country. Comment
  POM2138  Parietaria hespera var. hespera D. L. Crawford 1916-5-15 991 Orange Languna Canyon. Shade Comment
  IRVC29831  Paspalum dilatatum Tom McCrainie, Mark A. Elvin 2006-9-23 5 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
  RSA702938  Paspalum dilatatum Scott D. White 2004-7-7 10604 Orange Laguna Niguel. 61 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
  RSA766061  Paspalum vaginatum R. E. Riefner Jr. 2008-7-29 08 -257 Orange City of Dana Point, near Ritz-Carlton Hotel, Salt Creek Beach area. 0 Comment
  SBBG133631  Paspalum vaginatum R. E. Riefner Jr. 2008-7-29 08 -256 Orange Salt Crk Beach, near Ritz Carlton Hotel; Dana Point 0 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
  UCR246467  Paspalum vaginatum R. E. Riefner Jr. 2012-10-21 12- 523 Orange South Coast, city of Newport Beach, south of Poppy Street/Ocean Blvd, creek at base of stairs, Little Corona Beach 7 Comment
  UCR237832  Pectocarya linearis Mark A. Elvin 2003-2-2 2262 Orange South Coast, San Joaquin Marsh, UCI campus SSE of intersection of Jamboree Blvd. and Campus Dr. 2 Comment
  POM212414  Pectocarya linearis subsp. ferocula C. B. Wolf 1931-3-6 1846 Orange Trabuco canyon, 1/2 mile above Trabuco Oaks, west slope of Santa Ana Mountains. 457 Comment
  RSA548878  Pedicularis densiflora Bernard Jaroslow 1990-4-25 B- 36 Orange Sitton Peak Truck Trail: Trailhead 0.3 mile W of ranger station near hot springs, on Ortega Highway (SR 74) Comment
  CDA32097  Pelargonium Mark A. Elvin 2005-5-14 4313 Orange Southern Coastal; UCI Arboretum Comment
  SD174884  Pelargonium Mark A. Elvin 2005-5-14 4313 Orange Southern Coastal: UCI Arboretum, growing wild in the Arboretum grounds, not cultivated. 14 Comment
  UCR188941  Pelargonium X domesticum Robert DeRuff 2004-1 547 A Orange Newport Beach, Upper Newport Bay, Eastbluff North area 25 Comment
  CDA25915  Pelargonium grossularioides Mark A. Elvin 2005-5-14 4314 Orange Southern Coastal; UCI Arboretum Comment
  CAS-BOT-BC67734  Pellaea andromedifolia John Thomas Howell 1927-6-17 2551 Orange Hills on north side of Santa Ana Canyon 152 Comment
  RSA752318  Pellaea andromedifolia Fred M. Roberts 2008-5-20 7131 Orange Lomas de Santiago: Loma Ridge, Upper Limestone Cyn., 0.8 km NW Bolero Spr. and 3.1 km WNW Bolero Lookout. Irvine Ranch Conservancy. 467 Comment
  UCR237913  Pellaea andromedifolia Dick Newell, Judy Booth 2012-6-10 274 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, on Maple Springs Road 0.8 mi. NE of Maple Springs gate Comment
  RSA660591  Pellaea mucronata var. mucronata R. E. Riefner 2000-8-8 20 -719 Orange NCCP North Ranch Policy Plan Area. NE property; E slope of upper Fremont Cyn.; S of Donaldson Ranch area and S of powerline / National Forest boundary. 454 Comment
  UC1543033  Pellaea mucronata var. mucronata Donald G. Nelson 1935-4-6 241 Orange e of San Juan Capistrano (and just s of boundary of Cleveland Nat'l Forest, canyon with stream branching n from summer ranger station on main hwy); San Juan Canyon Comment
  RSA0093405  Pennisetum clandestinum D. E. Bramlet 2009-11-20 4416 Orange South Coast: San Diego Creek between Irvine and Newport Back Bay. 4 Comment
  IRVC29810  Pennisetum setaceum Laura D. Lyons, Mark A. Elvin 2006-9-23 424 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
  RSA16497  Penstemon heterophyllus var. australis Percy C. Everett 1935-6-18 7210 Orange Santa Ana Mts., summit of Santiago Pk. 1732 Comment
  UCR97636  Penstemon heterophyllus var. heterophyllus George K. Helmkamp, E. A. Helmkamp 1997-4-24 1647 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, 1.6 mi. SE of Ortega Hwy (Calif. Hwy 74) on Rd. 7-S14 549 Comment
  RSA16714  Penstemon spectabilis B. D. Stark 1935-7-26 7533 Orange 2 mi. south of summit of Skyline Drive, on road along ridge to Santiago Peak. 1067 Comment
  UCR241073  Penstemon spectabilis Dick Newell, Don Millar 2013-4-16 325 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago; lower Hangman's Tree Canyon at Santiago Canyon wash, 300 ft. west of Santiago Canyon Rd. 361 Comment
  RSA285583  Penstemon spectabilis D. C. Michener 1981-6-18 3973 Orange Firebreak and clearings in chaparral between Los Pinos peak and main divide truck trail (North of El Cariso). 1311 Comment
  RSA5315  Penstemon spectabilis B. D. Stark 1993-1-5 s.n. Orange 2 mi. S of summit of Skyline Drive on road along ridge to Santiogo Peek. 1067 Comment
  NY661144  Penstemon spectabilis var. spectabilis L. Abrams 1901-6-15 1842 Orange Santiago Peak 1676.4 Comment
  POM7598  Pentachaeta aurea P. A. Munz, R. D. Harwood 1920-4-24 3783 Orange Santa Ana Mountains, Sierra [Freemont] Canyon 366 Comment
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Sep 17 2011
  RSA702683  Pentachaeta aurea Scott D. White, Michael Honer 2004-5-17 10397 Orange South Coast: City of Laguna Niguel. Ridges and open slopes directly north of the intersection of Crown Valley Parkway and Pacific Island Dr. 61 Comment
  SEINET3148376  Pentachaeta aurea L. Abrams 1903-4-17 3259 Orange Near El Toro Comment
  RSA741730  Pentachaeta aurea subsp. allenii R. E. Riefner 2008-6-25 08 -169 Orange Santa Ana Mountains, Irvine Ranch Reserve, Fremont Canyon Conservation Easement, east Fremont Canyon, Lakeview SCE Road. 480 Comment
  RSA0060232  Pentagramma triangularis Minor Warne 1934-4-14 s.n. Orange Laguna Canyon Forks. Comment
  RSA0060346  Pentagramma triangularis Gary D. Wallace, G. Cromwell 1966-4-16 461 Orange W edge of Cleveland Nat. For. about 5 mi. E of San Juan Capistrano, in the Santa Ana Mountains, in Hot Springs Canyon. Comment
  RSA0070736  Pentagramma viscosa I. M. Johnston 1918-5-4 1926 Orange Hills back of Laguna Beach. 152 Comment
  POM201639  Perideridia gairdneri subsp. gairdneri L. M. Booth 1932-8-5 1354 Orange Lomita Land Co. Comment
  SD145971  Peritoma arborea var. globosa R. D. Goeden, D. W. Ricker 1965-6-21 Orange Dana Point 60 Comment
  RSA626154  Petunia parviflora R. E. Riefner Jr. 1998-4-2 98 -245 Orange W of Talbot Park and NNE from Rte 1 and Prospect St. Comment
  RSA0045162  Phacelia brachyloba Steve Smith 2005-04 24 Orange Caspers Wilderness Park, along bluffs of recovering burn area. Comment
  RSA221010  Phacelia cicutaria var. hispida E. W. Lathrop 1966-4-18 6174 Orange 4 mi NE of Lake Irvine, Black Star Canyon, Cleveland National Forest, Trabuco District. Comment
  RSA497761  Phacelia cicutaria var. hispida M. B. Dunkle 1933-5-30 3577 Orange Santa Ana Canyon. Comment
  UC1280311  Phacelia cicutaria var. hispida John M. Tucker 1941-5-30 257 Orange roadside on Ortega Hwy 2-3 mi e western boundary of National Forest; Cleveland National Forest Comment
  POM4488  Phacelia davidsonii L. R. Abrams 1901-06 1936 Orange Santiago Peak. Comment
  POM49692  Phacelia distans L. R. Abrams 1901-06 1824 Orange Santiago Peak Trail. 915 Comment
  RSA650516  Phacelia distans Shlomo Gat 1959-03 20 Orange Santa Ana Canyon. Comment
  RSA697789  Phacelia minor L. C. Hull 1934-4-24 s.n. Orange Trabuco Canyon. Comment
  UCR191353  Phacelia minor A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34640 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
  UCSB48211  Phacelia minor Roberts, Jr., Fred 1981-5-3 Orange Santa Ana Mtns.; Hot Springs Canyon, 1.3 km. NNE San Juan Guard Station 276 Comment
  UCSC001518  Phacelia minor Peter Kamb 1948-6-19 1111 Orange Southeast slope of the Santiago Peak Santiago Peak - Santa Ana Mts. - county listed as "Orange County-Riverside County" on primary lable 1219 Comment
  POM8648  Phacelia parryi P. A. Munz, R. D. Harwood 1920-4-24 3780 Orange Sierra [Freemont] Canyon 366 Comment
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Sep 17 2011
  UCR192723  Phacelia parryi A. C. Sanders, Fred M. Roberts 2008-5-6 35227 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
  UCR193841  Phacelia parryi A. C. Sanders, Fred M. Roberts 2008-7-16 35861 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hangmans Tree Canyon 379 Comment
  RSA697795  Phacelia racemosa Minor Warne 1934-03 s.n. Orange Barrenca near Irvine. Comment
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Apr 13 2016
  RSA428288A  Phacelia ramosissima H. C. Ackley 1926-05 5984 Orange Sunset Beach. Comment
  CAS-BOT-BC145004  Phacelia ramosissima var. latifolia Carl B. Wolf 1933-8-24 5389 Orange Santa Ana Mts. Summit of Santiago Pk. 1731 Comment
  RSA428287A  Phacelia ramosissima var. latifolia F. R. Fosberg 1931-6-21 S- 5135 Orange Silverado Canyon, Santa Ana Mts. Comment
  POM202123  Phacelia tanacetifolia P. A. Munz 1934-3-26 13133 Orange Newport Beach. 12 Comment
  IRVC18590  Phalaris aquatica Karlin G. Marsh 1980-8-13 s.n. Orange S of Trabuco Canyon, Sect. 12, Hinricks Parcel. Santa Ana Mountains Comment
  RSA562734  Phalaris aquatica Steve Boyd, Timothy S. Ross 1992-5-19 7450 Orange Southern Santa Ana Mountains San Mateo Canyon Wilderness Area. Western edge of the wilderness along Lucas Canyon Trail crossing. 320 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
  IRVC8437  Phalaris minor J. B. Anderson 1966-4-18 597 Orange Irvine; MacArthur Blvd. near Red Hill Road. Southern Coastal Comment
  RSA5942  Phalaris minor C. B. Wolf 1932-7-7 3854 Orange Bixby Ave. 0.3 mile east of Los Alamitos Blvd. (250 ft E of SW corner of NE/4 of NE/4 of Sec 31 T4S R11W) 8 Comment
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Apr 10 2014
  CDA22565  Phalaris paradoxa J. B. Anderson 1966-4-26 620 Orange University of California, Irvine. South of Science Lecture Hall. 0 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
  UCR193791  Phoradendron villosum A. C. Sanders, Fred M. Roberts 2008-7-3 35673 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor 415 Comment
  RSA0072390  Photinia arbutifolia Claire Kibbe 1936-07 s.n. Orange Santa Ana Canyon. [Orange or Riverside County] Comment
  POM201795  Phyla lanceolata L. M. Booth 1932-7-1 1238 Orange Anaheim Marsh Comment
  UC1714568  Phyla lanceolata D. L. Crawford 1916-7-26 Orange Laguna Canyon; Laguna Beach Region, Laguna Canyon Comment
  POM50618  Physalis greenei L. R. Abrams 1901-6-12 s.n. Orange Laguna. Comment
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Apr 23 2011
  RSA699075  Physalis philadelphica J. Vlahos 1932-10 s.n. Orange Field by S.A. River Bed. Comment
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Apr 23 2011
  SD43531  Physalis philadelphica P. A. Munz 1946-11-7 11607 Orange near Administration Building, Rancho Santa Ana Botanic Garden, Santa Ana River Canyon 198 Comment
  RSA691  Physalis philadelphica J. T. Howell 1927-7-28 513 Orange West side, Rancho Santa Ana. 152 Comment
  UCR191217  Picris echioides A. C. Sanders 2008-4-29 35143 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
  RSA696194  Picris echioides Anonymous s.n. Orange Santa Ana Comment
  RSA929  Picris echioides J. T. Howell 1927-7-29 514 Orange Near east boundary of Rancho Santa Ana. 152 Comment
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Nov 18 2009
  CAS-BOT-BC76994  Pilularia americana H. H. Tracy 1935-4-10 s.n. Orange North of Costa Mesa Comment
  RSA694924  Pilularia americana H. H. T 1935-3-23 s.n. Orange Costa mesa pools 26 Comment
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May 12 2014
  RSA562823  Pinus Steve Boyd, T. S. Ross 1992-5-20 7467 A 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
  IRVC20664  Pinus attenuata A. S. Boughey 1965-3-5 35 Orange Live Oak Canyon. Santa Ana Mountains Comment
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Mar 27 2014
  OBI6107  Pinus attenuata Carl B. Wolf 1934-12-21 6259 Orange S slope of main ridge, saddle NW of Sugarload Pk (Pleasants pk) 1-3/10 mi S of summit of Skyline Dr, Santa Ana Mts 1158 Comment
  UC532151  Pinus attenuata C. B. Wolf 1934-12-12 6259 Orange saddle nw of Sugarloaf Pk. (Pleasants Pk.) (s slope of main ridge, 1.3 mi s of summit of Skyline Drive); Santa Ana Mts. 1158 Comment
  MACF024423  Pinus canariensis Roberta Tiedman 1977-4-27 Orange In front of the Letters and Sciences building. Comment
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Nov 17 2015
  IRVC20775  Pinus coulteri Fred M. Roberts 1980-5-3 68 Orange Main Divide Truck Trail, 0.6km SE Trabuco Peak, Santa Ana Mountains 1259 Comment
  UCR194192  Pinus coulteri A. C. Sanders 2008-7-3 35715 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Canyon near mouth of Limestone Cyn., at Agustine Staging Area 260 Comment
  RSA731000  Pinus sabiniana Fred M. Roberts, B. Allen, D. Olsen 2007-1-19 6501 Orange Beek s Place along Main Divide Rd., 4.1 km NW Pleasant Peak. 852 Comment
  POM6289  Piperia cooperi Philip A. Munz, L. T. Street, G. Williams 1919-5-3 2638 Orange Santa Ana River Canyon. Comment
  RSA734904  Piptatherum miliaceum A. C. Sanders 2008-5-28 35438 Orange Lomas de Santiago, Bee Flat at mouth of Limestone Canyon 264 Comment
  UCR193349  Piptatherum miliaceum A. C. Sanders 2008-5-28 35438 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Bee Flat at mouth of Limestone Canyon 264 Comment
  UCSB48208  Piptatherum miliaceum Roberts, Fred 1981-7-8 Orange Rancho Mission Viejo; Calif. Rte. 74, 9.2 km. ENE San Juan Capistrano 100 Comment
  CAS-BOT-BC254389  Piptatherum miliaceum Ira L. Wiggins 1965-9-26 20256 Orange Along N margin of La Vida property, above the hot springs Comment
  SEINET5642640  Pistacia atlantica Shelby J. Wood 2013-3-9 10 Orange Huntington Beach, Central Park.; 0 Comment
  UCR99861  Pityrogramma triangularis Scott D. White 1996-12-20 4630 Orange Santa Ana Mountains, above Modjeska Canyon; proposed water tank site 488 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
  UCR192474  Plagiobothrys collinus A. C. Sanders, Fred M. Roberts 2008-3-25 34542 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  SD27970  Plagiobothrys collinus var. californicus Carl B. Wolf 1932-3-14 2710 Orange Rancho Santa Ana Botanic Garden 630 Comment
  RSA450857  Plagiobothrys collinus var. californicus Gordon Marsh 1978-3-17 s.n. Orange UC Irvine Ecological Preserve. 98 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
  SBBG93236  Plagiobothrys nothofulvus J. Ingram 1960-3-29 258 Orange 3 mi above O'Neill Park, Trabuco Cyn Comment
  UCR191013  Plagiobothrys nothofulvus A. C. Sanders, Fred M. Roberts 2008-4-22 35030 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Limestone Canyon, c. 2 miles SW of Silverado 396 Comment
  RSA3168  Plagiobothrys nothofulvus C. B. Wolf 1932-3-8 2695 Orange Santiago Dam at W base of Santa Ana Mts. 305 Comment
  RSA695839  Plagiobothrys tenellus J. R. Bruff s.n. Orange Modjeska s Home Comment
  RSA678750  Plantago coronopus Valerie L. Soza, Kevin B. Clark, LeRoy Gross, Will Miller, Fred Roberts, Gary Wallace 2001-4-4 1121 -a Orange Seal Beach U. S. Naval Weapons Station, southwestern edge of Seal Beach National Wildlife Refuge. 3 Comment
  RSA590720  Plantago elongata subsp. pentasperma R. E. Riefner 1994-4-22 94 -337 Orange S 1.5 miles from Moulton Meadows Park, Nyes' Place Ave, Laguna Beach. Comment
  JEPS6394  Plantago erecta Lawrence M. Booth 1932-5-18 1055 Orange Newport Bay Comment
  JEPS6417  Plantago erecta Alice King 1908-3-14 Orange near Santa Ana; Anaheim Plains Comment
  RSA542449  Plantago erecta Fred M. Roberts 1988-3-15 3868 Orange Rancho Mission Viejo: Central Gabino Canyon, 7km E Playa Survey Marker, 162 Comment
  UCR106273  Plantago erecta B. G. Pitzer 1997-3-25 3024 Orange San Joaquin Hills, Crystal Cove State Park, Pelican Point Area, grassland between Pacific Coast Hwy and the bike trail 30 Comment
  UCR171018  Plantago erecta R. E. Riefner Jr. 2006-4-12 06- 118 Orange Irvine, north foot of San Joaquin Hills, vicinity of Quail Hill, SSW of 405 Freeway and Shady Canyon Rd. 46 Comment
  CAS-BOT-BC402187  Plantago erecta subsp. erecta R. F. Thorne; E. W. Lathrop; W. Wisura 1977-4-27 49653 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. Comment
  CHSC116482  Plantago erecta subsp. erecta R. F. Thorne; C. W. Tilforth, E. W. Lathrop 1977-4-27 49653 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. Comment
  POM260478  Plantago indica Ella Carter 1941-08 1 Orange Near fish canneries, not far from 29th str, Newport Beach. Comment
  RSA542454  Plantago indica Fred M. Roberts 1987-6-30 3469 Orange Bolsa Chica Salt Marsh: Pacific coast Hwy, 0.8kim SE Warner. 2 Comment
  RSA730990  Plantago lanceolata Fred M. Roberts 2006-11-15 6464 Orange Santa Ana Cyn., 1.0 km ENE Imperial Hwy bridge, between La Palma Ave. and Santa Ana River near Big Springs St. 89 Comment
  RSA791465  Plantago lanceolata Keith E. Hoffmaster 1927-5-18 955 Orange Santa Ana. CP3. Comment
  RSA749680  Plantago major A. C. Sanders, Fred M. Roberts 2008-7-16 35839 Orange Lomas de Santiago, Dripping Springs off Limestone Canyon, c. 7.5 mi. ESE of Tustin. 391 Comment
  RSA424275  Plantago subnuda Anstruther Davidson 1910-4-1 s.n. Orange Corona Del Mar Comment
  RSA747622  Platystemon californicus Fred M. Roberts 2008-4-16 6910 Orange Dana Point: Dana Point Headlands, CNLM Preserve, 0.8 km W Marine Institute, Dana Point Harbor. 45 Comment
  OBI74939  Plecostachys serpyllifolia Unknown 2005-9-9 05 -654 Orange City of Lake Forest Aliso Crk, S side of Portola Pkwya and W of El Toro Rd 225 Comment
  SD218283  Plecostachys serpyllifolia R. E. Riefner Jr. 2009-7-18 09 151 Orange City of Dana Point, beach near Salt Creek, vicinity of Ritz Carlton Resort. Comment
  UCSB57585  Plectritis ciliosa Roberts, Fred 1984-4-14 Orange Santa Ana Mtns.: Chiquito Basin, San Juan Trail, 1.9km SW Blue Jay Campground; 2.8km S Los Pinos Peak 840 Comment
  RSA708731  Pluchea odorata Fred M. Roberts, Robert L. Allen, Chris M. Barnhill 2004-8-21 6114 Orange Caspers Wilderness Park, San Juan Cyn., Old San Juan Hot Springs, c.a. 0.4km SW San Juan Ranger Station, north of SR 74. 214 Comment
  CAS-BOT-BC326617  Pluchea sericea John Thomas Howell 1927-7-21 2815 Orange Santa Ana River bottom, Santa Ana Canyon 152 Comment
  RSA734637  Poa annua A. C. Sanders, T. B. Salvato 2008-5-13 35357 Orange Lomas de Santiago, Santiago Canyon above (S of) mouth of Hangman Tree Canyon, just below Modjeska Canyon confluence 366 Comment
  RSA699158  Poa pratensis Rankin s.n. Orange Santa Ana. Comment
  RSA542549  Poa secunda Fred M. Roberts 1988-2-9 3777 Orange Lomas de Santiago: Loma Ridge, 1.3 km N Bee Survey Mark., UTM 3733600m N, 434800m E 381 Comment
  RSA680732  Poa secunda Scott D. White 2003-3-21 8823 Orange Santa Ana Mountain Foothills: Rancho Mission Viejo. East-facing slopes above an unnamed tributary to San Juan Creek. 122 Comment
  RSA731973  Poa secunda A. C. Sanders, Fred M. Roberts 2008-4-8 34764 Orange Peninsular Range; Lomas de Santiago, Loma Ridge, SSE of Santiago Reservoir on Loma Ridge Spur Rd., above Dripping Springs Loop Rd 457 Comment
  JEPS111463  Poa secunda subsp. secunda J. B. Anderson 1966-5-3 636 Orange Santa Ana Mountains: Silverado Cny., Modjeska Peak road at 4500 ft. elev., along road cuts Comment
  RSA644981  Pogogyne douglasii subsp. parviflora R. E. Riefner Jr. 2000-4-5 20 -211 Orange North Ranch Policy Plan Area, Main Divide Road, top of Gypsum Canyon, east of Windy Ridge. 518 Comment
  SD152888  Polycarpon tetraphyllum Steve Boyd, Tim Ross 1992-5-19 7451 Orange Southern Santa Ana Mountains, western edge of the wilderness in Lucas Canyon at the Lucas Canyon Trail crossing. 320 Comment
  UCSB48054  Polycarpon tetraphyllum Fritzke, S.; Roberts, Fred 1982-4-3 Orange Dana Point Headlands: north of Dana Strand Road; 0.5 km. W Dana Point Harbor; 0.8 km. SSW Richard Henry Dana School 80 Comment
  CAS-BOT-BC402184  Polygala cornuta var. fishiae R. F. Thorne; E. W. Lathrop; W. Wisura 1977-7-8 49615 Orange Santa Ana Mountains: along Ortega Highway (74) about 2.5 miles above San Juan Fire Station, lateral ravine tributary to San Juan Canyon Comment
  UCD169749  Polygala cornuta var. fishiae R. F. Thorne; E. W. Lathrop, W. Wisura 1977-7-8 49615 Orange Santa Ana Mountains: along Ortega Highway (74) about 2.5 miles above San Juan Fire Station, lateral ravine tributary to San Juan Canyon. 358 Comment
  RSA0054920  Polygonum acre Keith E. Hoffmaster 1933-10-1 489 Orange Near Tustin. Comment
  RSA743378  Polygonum aviculare Fred M. Roberts 2008-4-9 6858 Orange Dana Point: Dana Point Headlands, CNLM Preserve near Outlook 2, 0.7 km W Marine Institute (Dana Point Harbor). 52 Comment
  UCR193820  Polygonum aviculare A. C. Sanders, Fred M. Roberts 2008-7-16 35866 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Creek wash at and above the confluence of Hangmans Tree Canyon 370 Comment
  UC729950  Polygonum aviculare subsp. aviculare Carl B. Wolf 1932-6-20 3755 Orange around administration building; Santa Ana Canyon, Rancho Santa Ana 198 Comment
  UCR150564  Polygonum hydropiperoides Scott D. White, Matt Carlton 2003-11-20 9868 Orange South Coastal Plain, Santa Ana Mtn foothills. San Juan Creek in San Juan Capistrano 24 Comment
  RSA0054922  Polygonum lapathifolium Keith E. Hoffmaster 1933-10-1 488 Orange Near Tustin. Comment
  RSA730991  Polygonum punctatum Fred M. Roberts 2006-11-15 6465 Orange Santa Ana Cyn., Santa Ana River, north bank, 1.1 km ENE Imperial Hwy crossing. 85 Comment
  IRVC22502  Polypodium californicum Fred M. Roberts 1985-5-1 1692 Orange Aliso Canyon, 2.1km NNE Aliso Peak, Aliso Viejo 67 Comment
  IRVC24465  Polypodium californicum Fred M. Roberts 1986-2-5 2587 Orange Santa Ana mtns: Lower Hot Springs Canyon, 1.1km NNW Juan Rancho Survey Mk Peninsular Ranges 285 Comment
  RSA733703  Polypodium californicum Minor Warne 1934-02 s.n. Orange Modjeska Canyon Comment
  SD48446  Polypodium californicum E. K. Balls, P. C. Everett 1957-11-25 22837 Orange Trabuco Canyon Comment
  IRVC14155  Polypodium californicum K. Marvosh 1966-4-26 s.n. Orange Silverado Canyon: 1mi S of end of paved roads, along stream bank. Southern Coastal Comment
  UCR208342  Polypogon australis O. F. Clarke 2004-4-5 s.n. Orange South Coast, Huntington Beach State Park, near east bathroom 4 Comment
  CLARK-A1528-4839  Polypogon monspeliensis John C. Roos 1949-10-1 4674 Orange Doheney Beach 1-3 Comment
  IRVC1809  Polypogon monspeliensis J. B. Anderson 1966-4-22 607 Orange San Joaquin Hills: Los Trancos Canyon, along dirt road and near spring. Santa Ana Mountains 122 Comment
  IRVC1814  Polypogon monspeliensis Ray Harbour 1965-3-23 s.n. Orange Corona del Mar. southern coastal Comment
  RSA697709  Polypogon monspeliensis Minor Warne 1934-5-11 s.n. Orange Talbert Drainage. Comment
  RSA696612  Polypogon monspeliensis Jeanne Paxton 1934-5-18 s.n. Orange Lemon Heights 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
  CAS-BOT-BC237511  Polypogon viridis L. R. A. 1901-6-1 1805 Orange Santiago Peak trail Comment
  UCSB52417  Polypogon viridis Roberts, Fred 1982-10-18 Orange Laguna Beach; Temple Hill, east flank, east margin of Top of the World School 295 Comment
Read comments
Jan 25 2021
  CAS-BOT-BC72265  Polystichum imbricans subsp. curtum P. C. Everett 1935-6-19 7230 Orange Santa Ana Mts., main divide motorway, Bear Spring 1219 Comment
  IRVC28638  Populus balsamifera subsp. trichocarpa Mark A. Elvin, A. C. Sanders 2005-9-2 4493 Orange Mouth of Lion Cyn, just up stream from Lower San Juan Campground. Santa Ana Mtns 457 Comment
  SEINET6654152  Populus balsamifera subsp. trichocarpa R. E. Riefner Jr. 2007-6-12 07 -253 Orange City of San Juan Capistrano, vicinity of Calle Arroyo/Paseo Esteban at San Juan Creek.; 0 152 Comment
  RSA5327  Populus fremontii B. D. Stark 1932-12-30 4468 Orange Rancho Santa Ana. River bottom below Mexican houses. 122 Comment
  RSA731957  Populus fremontii subsp. fremontii Fred M. Roberts 2007-12-12 6700 Orange Santa Ana Canyon: Santa Ana River, south of Green River Golf course on south side of river, 0.4km E Coal Cyn. Rd. and 0.7km W Riverside Co. line. 129 Comment
  CLARK-A1528-2062  Porophyllum gracile John C. Roos 1937-5-10 2337 Orange San Juan Capistrano Comment
  RSA780831  Potentilla glandulosa subsp. glandulosa Sandy Leatherman 2011-6-2 2011 -19 Orange Peninsular Ranges; Chino-Puente Hills region: 50 meters west of Carbon Canyon Road and Lions Canyon Road in Carbon Canyon in the City of Brea 273 Comment
  UCR106274  Prunus caroliniana B. G. 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 & Moro Canyon), to just below intersection with 'Poles' trail 152 Comment
  CAS-BOT-BC356662  Pseudognaphalium californicum A. M. White 1974-6-2 1417 Orange Ca. 20 mi. E. of Santa Ana, CA N. of Silverado Canyon Comment
  RSA747708  Pseudognaphalium californicum Fred M. Roberts 2008-5-16 6986 Orange Dana Point: Dana Point Hradland, CNLM Preserve, north of Marguerita Drive, 0.5 km WNW Marine Institute, Dana Point Harbor. 75 Comment
  SEINET9307949  Pseudognaphalium californicum Unknown 1996-5-11 19 Orange Newport Back Bay, 25 yrds in along bike path. Dry coastal mudflat dominated by Typha. Comment
  UCR106257  Pseudognaphalium californicum B. G. Pitzer 1996-4-30 2800 A Orange San Joaquin Hills, Crystal Cove State Park, south of City of Irvine on State Hwy 1 (Pacific Coast Hwy) 15 Comment
  UCSB47584  Pseudognaphalium californicum Roberts, Jr., Fred 1980-4-3 Orange Along Highway 74, 0.2 km. SW of Orange-Riverside Co. line, 0.4 km. NNE Lower San Juan Picnic Ground 420 Comment
  CAS-BOT-BC502070  Pseudognaphalium leucocephalum R. E. Riefner, Jr. 2015-12-9 15 -461 Orange Rancho Mission Viejo, E of San Juan Capistrano, San Juan Creek, W of Antonio Pkwy, N side of Ortega Hwy (Hwy 74), near bridge at Sendero Field Park 55 Comment
  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
  RSA722094  Pseudognaphalium leucocephalum R. E. Riefner 2007-2-13 07 -55 Orange City of San Juan Capistrano, vicinity of La Novia Ave. and San Juan Creek. 31 Comment
  UCR217466  Pseudognaphalium luteoalbum Mark A. Elvin 2003-2-23 2312 Orange South Coast, Irvine, San Joaquin Marsh along the berm of San Diego Creek 3 Comment
  CAS-BOT-BC356983  Pseudognaphalium luteoalbum Alice Eastwood 1936-4-5 s.n. Orange Bixby Botanic Garden, Santa Ana Comment
  UC536948  Pseudognaphalium ramosissimum Lawrence M. Booth 1932-7-27 1321 Orange Corona del Mar Newport Beach, Corona del Mar Comment
  IRVC25185  Pseudotsuga macrocarpa Fred M. Roberts, Robert Fisher 1986-10-28 3167 Orange Upper Horsethief Canyon, Main Divide Truck Trail, 1.9km SE Trabuco Peak, Santa Ana Mountains 1219 Comment
  RSA617798  Psilocarphus brevissimus R. E. Riefner 1998-4-3 98 -252 Orange Newport back-bay, west of Jamboree Rd. Comment
  SD152923  Psilocarphus tenellus Steve Boyd, Tim Ross 1992-5-19 7426 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of the wilderness along Lucas Conayon Trail from access road to Rancho Carrillo (7S06) north into Aliso Canyon. Along trail on hard-packed soil. 366 Comment
  UCR269240  Psilotum nudum R. E. Riefner Jr. 2015-11-22 15- 453 Orange South Coast, city of Costa Mesa, east side of Orange County Fairground, Lot #A-5, west of Newport Blvd. and north of Fair Drive 32 Comment
  UCR282159  Psilotum nudum R. E. Riefner Jr. 2017-1-15 17- 36 Orange South Coast, city of Newport Beach, Polaris Drive, south of Evening Star Drive, Westcliff Park, north side of Newport Bay 3 Comment
  RSA698725  Psoralea macrostachya W. Blanchard 1932-5-25 s.n. Orange Irvine Park Comment
  POM17940  Pteridium aquilinum var. pubescens P. A. Munz 1923-6-14 7111 Orange Trail, Glen Ivy to Santiago Peak, Santa Ana Mtns. 1067 Comment
Read comments
Apr 1 2013
  RSA737547  Pterostegia drymarioides Fred M. Roberts 2008-3-12 6714 Orange Dana Point: Dana Point Headlands CNLM Preserve, western side, c.a. 0.8 km W Marine Institute (Dana Point Harbor). 50 Comment
  RSA679099  Pulicaria paludosa Fred M. Roberts 2003-7-24 5964 ` Orange San Juan Capistrono: San Juan Creek, c.a. 0.1 km NE La Novia Bridge. Along creek on cobbly sand of wash in open southern willow scrub and mulefat scrub. 27 Comment
  UCR138415  Pulicaria paludosa Scott D. White, P. Bowler 1997-11-20 6021 Orange University of Calif., Irvine campus: east of main campus 61 Comment
  UCR151234  Pulicaria paludosa Steve Boyd, R. E. Riefner 2000-9-13 10307 Orange Peninsular Ranges; Santa Ana Mts region, Santa Ana Mountains: Fremont Canyon, about 1.5 air miles west of Oat (a.k.a. Oak) Flat and 1.5 miles southeast of Claymont clay mine. 427 Comment
  UCR210376  Pulicaria paludosa T. B. Salvato, Billy Deane 2006-10-16 1932 Orange South Coast, Irvine, San Diego Creek flood control channel, between Michelson Drive and the 405 FWY 12 Comment
  UCR95480  Pulicaria paludosa P. H. Raven 1961-10-15 16847 Orange Anaheim: Santa Ana River Bed at Anaheim Street crossing 61 Comment
  RSA562815  Pyrus communis Steve D. Boyd, Tim S. Ross 1992-5-20 7468 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
  UC1597259  Quercus Fred M. Roberts Jr. and Carol A. Roberts 1989-4-7 4264 Orange 0.4 km w West Moulton Peak; Aliso-Wood Canyon Regional Park, Upper Wood Canyon 104 Comment
  CAS-BOT-BC61813  Quercus agrifolia C. B. Wolf 1931-3-6 1832 Orange 1.5 miles below Trabuco Oaks along Trabuco Canyon road, west slope Santa Ana Mts. 304 Comment
  RSA657748  Quercus agrifolia var. agrifolia Ken Greby 1985-5-20 44 Orange behind PG and E substation located 2 km. SE from Laguna Canyon Td., on El Toro Rd., adjacent to Leisure World. Comment
  UCSB48077  Quercus agrifolia var. agrifolia Roberts, Fred 1981-4-11 Orange Santa Ana Mtns., San Juan Canyon, Hwy 74, 2.7km ENE San Juan Guard Station 96 Comment
  CAS-BOT-BC86442  Quercus berberidifolia A. M. White 1974-6-1 1398 Orange About 20 mi E. of Santa Ana, N. of Silverado County 1005 Comment
  IRVC24518  Quercus berberidifolia Fred M. Roberts, Gordon A. Marsh 1986-2-28 2632 Orange Mission Viejo: N of Oso Parkway; 4.2km NNE Saddleback Community College. Southern Coastal 200 Comment
  IRVC24550  Quercus berberidifolia Fred M. Roberts 1987-8-6 3578 Orange San Joaquin Hills: Pelican Hill; N slope; 0.6mNNW Pelican Hill survey mark. Southern Coastal 194 Comment
  IRVC24551  Quercus berberidifolia Fred M. Roberts 1983-10-9 1141 Orange Laguna Beach: Temple Hill S of Upper Rancho Laguna Canyon near Del Mar Street. Southern Coastal 200 Comment
  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
  RSA649691  Quercus berberidifolia R. E. Riefner Jr. 2000-7-8 20 -627 Orange NCCP North Ranch Policy Plan Area. On ridgetop overlooking W fork of Fremont Cyn.; located E of Main Divide Road along the powerline. 395 Comment
  RSA87168  Quercus berberidifolia F. W. Peirson 1925-4-10 5738 Orange In Silverado Canyon. 610 Comment
  UCD166560  Quercus berberidifolia Dylan O. Burge 2016-2-23 2089 Orange Santa Ana Mountains, vicinity of Blue Jay Campgroundm along spur off of Long Canyon Road. 1060 Comment
  UCR132889  Quercus berberidifolia Adrian Wolf 2000-6-1 468 Orange Santa Ana Mtns., North Ranch Policy Plan Area, West Fremont Canyon 534 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
  UCR273490  Quercus berberidifolia A. C. Sanders, Glen Morrison 2016-8-4 42609 Orange Peninsular Range; Santa Ana Mountains, dirt road off North Main Divide Road (Forest Rte 3S04), north of Los Pinos Spring, 3.87 km NW (286 deg. ) of El Cariso Fire Station 1101 Comment
  RSA0041589  Quercus berberidifolia E. R. Johnson 1934-1-6 5565 Orange Santa Ana Mts., on slopes of Sierra Peak at about the head of Claymine Canyon. 762 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
  UCSB52941  Quercus chrysolepis Roberts, Fred 1983-11-4 Orange Santa Ana Mountains; upper Trabuco Canyon, 1.2 km. NE Los Pinos Peak; 3.5 km. SSE Trabuco Peak 1320 Comment
  SEINET13953238 Image available Quercus chrysolepis C. B. Wolf, E. R. Johnson 1933-1 Orange Santa Ana Mts., Main Divide Motorway, W. Side of Modjeska Peak 1372 Comment
  UCD170637  Quercus dumosa D. O. Burge 2017-11-17 2326 Orange Laguna Niguel. 140 Comment
  RSA0059078  Quercus dumosa CNPS Accuracy Assessment Team 2014-7-10 3266 .1 Orange Buck Gully. Comment
  IRVC23279  Quercus engelmannii Karlin G. Marsh 1987-4-20 s.n. Orange Casper's Regional Park; Lucas Canyon near park boundary; canyon bottom. Southern Coastal Comment
  RSA542389  Quercus engelmannii Richard Ericson 1991-6-11 s.n. Orange San Joaquin Hills: upper Coyote Canyon on north signal peak, ca. 0.6 km NW summit, UTM 37 19 000m N, 4 24 200m E alt. 204m 204 Comment
  RSA649690  Quercus engelmannii R. E. Riefner Jr. 2000-6-1 20 -453 Orange NCCP North Ranch Policy Plan Area. N of Irvine Lake and W of Black Star Cyn; W. of dirt access rd. 473 Comment
  RSA697639  Quercus lobata Unspecified 1936-11 s.n. Orange Birch Park. Comment
  UCD46911  Quercus lobata James Trumbley 1980-1 2 Orange Crystal Cove State Park, ca. 1 mile inland, in Moro Canyon, a coastal canyon between Laguna Beach and Corona del Mar, Orange County, California. 30 Comment
  UC1135890  Quercus wislizeni A. Lewis Mar 1934 363 Orange Head of Silverado Canyon Cleveland National Forest, Corona Quad. 1112 Comment
  IRVC22420  Quercus wislizeni var. frutescens Gordon A. Marsh, Karlin G. Marsh 1985-10-27 s.n. Orange Pine Canyon; 4.1km NW Modjeska Peak. Santa Ana Mountains 805 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
  UC1135919  Quercus wislizeni var. frutescens A. Lewis May 1934 418 Orange Trabuco Canyon Cleveland National Forest, Elsinore Quad. 1371 Comment
  RSA160430  Rafinesquia californica J. D. Olmsted 1959-4-23 471 Orange Spring Trail at Beacon Pines Ranch; 9 miles SW of Corona. 762 Comment
  UCR97814  Rafinesquia californica Scott D. White 1997-3-28 4838 Orange Santa Ana Mountains, Above Modjeska Canyon, proposed water tank site. 488 Comment
  IRVC14751  Rafinesquia californica A. S. Boughey 1968-4-16 242 Orange Santiago Canyon/Lower Modjeska Cyn, Fleming Property. Santa Ana Mountains Comment
  POM303771  Ranunculus californicus Lyman Benson 1947-4-27 12338 Orange Carbon Canyon. Chino-Puente Hills; Pacific Slope Drainage Area. 244 Comment
  UCR78041  Ranunculus californicus Scott D. White 1993-4-7 1197 Orange Laguna Mtns., Laguna Canyon, E side of Laguna Canyon Road (Hwy 133), above Hillies Lane. (Thomas Bros. Orange County Map: F-3 on 33A). Comment
  JEPS55026  Ranunculus californicus Alice King 1908-3-9 Orange South Main Street Santa Ana Comment
  IRVC1141  Raphanus sativus C. Duncan 1965-4-13 Orange Newport Beach Comment
  IRVC1143  Raphanus sativus M. Cadnum 1965-4-1 Orange Knowell Pl. Costa Mesa Comment
  IRVC1149  Raphanus sativus C. Duncan 1965-4-4 Orange Newport Beach Comment
  IRVC1151  Raphanus sativus J. Morgan 1965-3-20 Orange 17th St. and Irvine Ave. Costa Mesa Comment
  RSA581437  Rhamnus californica subsp. californica Fred M. Roberts, Gordon Marsh 1989-5-21 4355 Orange Santa Ana Mountains: small tributary canyon to Santiago Canyon, Flemming Regional Park, just E of Modjeska, ca. 3.3 km WSW Laurel Springs. 451 Comment
  CAS-BOT-BC56029  Rhamnus ilicifolia Carl B. Wolf 1931-3-6 1845 Orange Santa Ana Mts., Trabuco Canyon, 1/2 mi. above Trabuco Oaks 457 Comment
  CAS-BOT-BC56034  Rhamnus ilicifolia C. B. Wolf; E. R. Johnson 1933-11-3 5531 Orange Santa Ana Mts., Silverado Canyon, base of Silverado Motorway 731 Comment
  OBI5868  Rhamnus ilicifolia Carl B. Wolf 1931-3-6 1841 Orange W sloep Santa Ana Mts, Trabuco cyn, 1/2 mi above Trabuco oaks 457 Comment
  RSA650880  Rhamnus ilicifolia Jack D. Ingwersen 1962-5-2 s.n. Orange Anaheim Comment
  UCSB21805  Rhamnus ilicifolia Merrill, Roy 1965-4-11 Orange 11.5 mi. on State 74 from U.S. 101, Santa Ana Mts. 274 Comment
  UC592835  Rhamnus tomentella subsp. cuspidata Carl B. Wolf 1933-8-24 Orange Summit of Santiago Pk. Santa Ana Mts. 1731 Comment
  UC1121807  Rhamnus tomentella subsp. tomentella A. Lewis May 1934 417 Orange Trabuco Canyon Cleveland National Forest, Elsinore Quad. 1371 Comment
  SEINET6666489 Image available Rhus integrifolia T. C. Arambula 1966-1 26 Orange Firestone Boy Scout Reservation Comment
  UCR193787  Rhus integrifolia A. C. Sanders, Fred M. Roberts 2008-7-3 35693 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along Windy Ridge Rd. at hairpin turn/road junction below huge sandstone boulder (visible on Google Earth), 1.2 mi. SE of Walnut Canyon Reservoir 285 Comment
  RSA0041474  Rhus integrifolia Fred M. Roberts, R. L. Allen 1985-8-19 2143 Orange Mission Viejo: ridge, 3.5km ENE E1 Toro Fire Station. 279 Comment
  SEINET12235089  Rhus integrifolia Unknown 1933-1 8218 Orange Back of LaGuna Beach Comment
  CLARK-A1528-117  Rhus laurina Cesareo Perez 1971-5-4 1 Orange Villa Park Comment
  IRVC83  Rhus ovata Hayden R. Williams 1966-6-12 HRW 578 Orange Costa Mesa; Orange Coast College Campus; Native Garden. Southern Coastal Comment
  SEINET10634921  Rhus ovata Greg Gust, Leith Nye 2005-3-12 Gust 567 Orange Cleveland National Forest, on Hwy 74 ca. 0.5 m W of county boundary with Riverside at a pullout. 401 Comment
  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
  RSA735255  Ribes californicum Pomeroy 1929-2-10 71 Orange Silverado Canyon. Comment
  RSA0024853  Ribes cereum Jeanne Paxton 1934-2-25 s.n. Orange Sugar Loaf Canyon, Arch Beach. Comment
  RSA0024855  Ribes cereum Minor Warne 1934-2-23 s.n. Orange Santiago Canyon. Comment
  CAS-BOT-BC173125  Ribes indecorum B. D. Stark 1930-2-21 1475 Orange Black Star Creek 457 Comment
  HSC25244  Ribes indecorum Richard Spjut 1972-2-22 2224 Orange Coastal strand, near S Laguna Beach along Hwy. 1 0 Comment
  RSA1703  Ribes indecorum Carl B. Wolf 1931-3-6 1834 Orange Trabuco Canyon Road, 1.25 miles below Trabuco Oaks. 305 Comment
  LA205488  Ribes malvaceum W. E. Pequegnat; 1937-9-6 sn Orange Santa Ana Mountains, Ortega Rd Comment
  RSA221073  Ribes malvaceum var. viridifolium E. W. Lathrop 1966-4-6 6144 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  RSA0018258  Ribes roezlii Robert F. Thorne, E. W. Lathrop 1977-5-18 49739 Orange Santa Ana Mountains: summit of Santiago Peak. 1733 Comment
  CAS-BOT-BC173741  Ribes speciosum James R. Shevock 1978-4-26 5902 Orange Along FS road 3S04 between Beeks Place and Black Star Canyon Road. Santa Ana Mountains, Cleveland National Forest 914 Comment
  CLARK-A1528-4151  Ribes speciosum John C. Roos 1962-5-6 Orange Santa Ana Mountains Comment
  POM293817  Ribes speciosum Lyman Benson 1947-4-27 12336 Orange Carbon Canyon. Chino-Puente Hills; Pacific Slope Drainage Area. 244 Comment
  RSA539409  Ribes speciosum Fred M. Roberts, Karlin G. Marsh 1989-3-7 4198 Orange Lomas De Santiago: Lomas Ridge, Tributary to Hicks Canyon, 2.3 km W Bee canyon. 157 Comment
  RSA658211  Ribes speciosum T. A. Daubert 1991-5-19 661 Orange Tucker Wildlife Sanctuary, Modjeska Canyon inside sanctuary. 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
  UCR149497  Ribes speciosum Scott D. White, Michael Honer 2004-5-17 10384 Orange South Coast, City of Laguna Niguel. Ridges and open slopes directly N of the intersection of Crown Valley Parkway and Pacific Island Dr 183 Comment
  UCR5952  Ribes speciosum David M. Peterson 1966-3-9 660309- 08 Orange 3 mi east of San Juan Capistrano on the road to Elsinore 306 Comment
  JEPS53978  Ricinus communis S. B. and W. F. Parish October, 1882 1599 Orange near Anaheim Comment
Read comments
Jul 18 2010
  RSA749353  Ricinus communis Fred M. Roberts 2008-4-15 6902 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
  JEPS51543  Romneya coulteri Alice King Jun 1908 Orange near Santa Ana (in hills) Comment
  RSA0050276  Romneya coulteri Fred M. Roberts 2013-6-12 7799 Orange Peninsular Ranges SANTA ANA MTNS.: Lower Silverado Canyon along Silverado Creek on north side of Silverado Canyon Road,, 0.9 km ENE Silverado School and 1.7 km up stream Black Star Road crossing. 332 Comment
  RSA267969  Romneya coulteri E. W. Lathrop 1977-6-16 7654 Orange Silverado Canyon. Santa Ana Mts. Cleveland National Forest, Trabuco District. 366 Comment
  RSA722424  Romneya coulteri G. Gentges 1932-5-8 s.n. Orange Silverado Canyon Wash. Comment
  UC186874  Romneya coulteri Samuel B. Parish Oct. 1880 393 Orange near Anaheim; Santa Ana Canyon Comment
  UCR113451  Romneya coulteri R. E. Riefner Jr. 2000-7-6 20- 615 Orange Peninsular Range, Santa Ana Mountains, North Ranch Policy Plan Area, NE property, along powerline SE of upper Fremont Canyon 607 Comment
  UCR16445  Romneya coulteri K. T. Ingram 1976-5-2 s.n. Orange Peninsular Range; Santa Ana Mtns., Ortega Highway, Route 74, 12 mi. east of Hwy 405 Comment
  POM144067  Rorippa curvisiliqua L. R. Abrams 1901-06 1768 Orange Laguna - Lake Comment
  UCR130493  Rorippa nasturtium-aquaticum R. E. Riefner Jr. 2002-5-4 02- 97 Orange South Coast, Upper Newport Bay, Jamboree Road at Bayview Dr., edge of Newport Beach Q. 21 Comment
  RSA0045579  Rosa californica R. H. McArthur 1934-4-21 s.n. Orange Limestone Boyscout Camp. Comment
  UCR128315  Royena lycioides subsp. lycioides A. C. Sanders, Mark A. Elvin 2003-10-12 27331 Orange Southern Coastal Slope, Irvine, UCI Arboretum, UCI campus near intersection of Jamboree Blvd. and Campus Dr. 15 Comment
  RSA376  Rubus ursinus J. T. Howell 1927-7-6 280 Orange Santa Ana River bottom, Rancho Santa Ana 152 Comment
  VVC457  Rubus ursinus F. Ambrey 1959-5-4 s.n. Orange Santa Ana Mtns., 0.8 mi W of pavement end in Silverado Cyn. 649 Comment
  RSA0022431  Rubus ursinus Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49789 Orange Santa Ana Mountains: Trabuco Canyon. Comment
  UCSB48004  Rumex californicus Roberts, Fred 1980-7-11 Orange SANTA ANA MTNS.: Viejo Canyon, 3.0km ENE San Juan Guard Station; 0.7km N Hwy 74 355 Comment
  CAS-BOT-BC421793  Rumex conglomeratus Brian Leatherman 1997-6-12 5340 Orange Santa Ana Mtn. foothills. East of San Juan Capistrano: San Juan Creek between Hwy 74 bridge and Mission Vieja site, i.e., ca. 2 to 4 mi E of I-15 / Hwy 74 jtn. 75 Comment
  POM306304  Rumex conglomeratus Henry J. Ramsey, Henry J. Ramsey 1938-6-5 1392 Orange Laguna Beach, Irvine Comment
  RSA798097  Rumex conglomeratus Robert F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49586 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74) Comment
  UC536918  Rumex conglomeratus Lawrence M. Booth 1932-6-9 1178 Orange 1 mi from ocean Santa Ana River Canal Comment
  RSA466060  Rumex conglomeratus Louis C. Wheeler 1932-6-22 841 Orange Newport Bay. 1 Comment
  RSA6066  Rumex conglomeratus Carl B. Wolf 1932-6-13 3718 Orange Storm drain at Malvern and Nicholas Aves; Fullerton. 53 Comment
  JEPS39877  Rumex crispus Lawrence M. Booth 1932-5-12 1051 Orange Newport Bay Comment
  UCR103164  Rumex crispus Scott D. White 1997-3-26 4811 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
  UCR5920  Rumex crispus David M. Peterson 1966-3-9 660309- 5 Orange 2 miles east of San Juan Capistrano on the road to Elsinore 305 Comment
  OBI41039  Rumex crispus Unknown, With Melissa Thorme 1983-11-23 20 Orange Adj to the S most housing tract in Corona Del Mar Comment
  UC536915  Rumex maritimus Lawrence M. Booth 1932-6-28 1220 Orange Bolsas Marsh Comment
  RSA734984  Rumex salicifolius A. C. Sanders, T. B. Salvato 2008-5-13 35386 Orange Lomas de Santiago, Santiago Canyon above (S of) mouth of Hangman Tree Canyon, just below Modjeska Canyon confluence 366 Comment
  SEINET10830689  Rumohra adiantiformis David B. Dunn 1976-7-21 Dunn 22173 Orange Collected from a nursery off Hwy 1, in Newport. 15 Comment
  UCR141340  Ruta graveolens Robert DeRuff 1997-1 502 Orange Southern Coast, Newport Beach, Newport Back Bay, Upper Big Canyon 14 Comment
  UC1179530  Salicornia bigelovii Peter H. Raven 1958-7-5 13561 Orange just n Surfside Comment
  POM186291  Salicornia bigelovii Joseph A. Ewan 1932-7-29 7713 Orange Newport lagoon 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
Read comments
Feb 9 2020
  UCSB44173  Salicornia pacifica Henneman, J. 1977-5-21 Orange Newport Back Bay 3 Comment
  UC455214  Salicornia virginica I. J. Condit 1908-7-20 Orange Los Alamitos Comment
  RSA6450  Salix exigua Carl B. Wolf 1932-4-15 2953 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Canyon. 120 Comment
  RSA698844  Salix exigua Mabel Harvey s.n. Orange Silverado Canyon Comment
  UC492441  Salix exigua Carl B. Wolf 1932-7-7 3845 Orange near town of Los Alamitos (Rancho Santa Ana along ditch on Bixby Ave., 1 km. w of Hansen Rd., Bryant Ranch) Comment
  SBBG58924  Salix exigua var. hindsiana C. B. Wolf 1932-4-15 2954 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Cyn 120 Comment
  SBBG58943  Salix exigua var. hindsiana C. B. Wolf 1932-7-7 3845 Orange Rancho Santa Ana, Bixby Ave, 1 km W of Hansen Rd, near Los Alamitos 8 Comment
  CAS-BOT-BC108133  Salix gooddingii Carl B. Wolf 1932-4-15 2955 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Canyon 120 Comment
  CAS-BOT-BC108138  Salix gooddingii John Thomas Howell 1927-7-14 2772 Orange Santa Ana River bottom, Santa Ana Canyon [Canon] 152 Comment
  UCR112096  Salix gooddingii A. C. Sanders, D. Malueg, K. D. Jones 2000-4-19 23337 Orange Pacific Coast, Bolsa Chica Lagoon, along dirt roads in oil field, east of Hwy 1, east of Bolsa Chica St. 11 Comment
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Jun 19 2006
  UCR185530  Salix gooddingii Robert DeRuff 2001-4-10 s.n. Orange South Coast, Newport Back Bay, North Star Beach 3 Comment
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Jun 21 2008
  RSA0038293  Salix hindsiana var. leucodendroides Carl B. Wolf 1932-7-7 3843 Orange Rancho Santa Ana, along ditch on Bixby Ave., 1 km. west of Hansen Road, near town of Los Alamitos. 7 Comment
  RSA0034815  Salix hindsiana var. parishiana Marcus E. Jones 1930-3-3 s.n. Orange Santa Ana Mountains. Comment
  LA208696  Salix laevigata Carl Hedin; Joseph Ewan 1933-3-19 7682 Orange Santa Ana River 8 km below Prado (Rincon) [Area 7] Comment
  RSA749045  Salix laevigata A. C. Sanders, Fred M. Roberts 2008-8-7 35984 Orange lower Weir Canyon, at narrow gorge c. 0.6 mi. above mouth of cyn at Irvine Ranch gate. 185 Comment
  UCR174189  Salix laevigata A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33015 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
  UCR193034  Salix laevigata A. C. Sanders, Mitch Provance 2008-5-20 35425 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago area, Santiago Creek Canyon, c. 3/4 mile below Modjeska Canyon confluence 355 Comment
  RSA0071937  Salix laevigata CNPS Accuracy Assessment Team 2014-4-28 898 .2 Orange Black Star Canyon. Comment
  CAS-BOT-BC128466  Salix lasiolepis var. lasiolepis Ira L. Wiggins 1966-2-4 20417 Orange Along watercourse near mouth of Trabuco Canyon Comment
  NY284114  Salix nigra var. vallicola L. Abrams 1903-4-16 3256 Orange Santa Ana River, near Orange Comment
  CAS-BOT-BC403758  Salpichroa origanifolia E. L. Paddock 1943-5-28 12744 Orange Little Tia Juana Campsite, sunny hills Ranch, Fullerton Comment
  RSA39339  Salpichroa origanifolia E. L. Paddock 1943-5-28 12744 Orange Little Tia Juana Campsite, Sunny Hills Ranch, Fullerton. Comment
  RSA783248  Salsola J. D. Olmsted 1959-9-22 983 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
  CAS-BOT-BC176840  Salsola australis Ira L. Wiggins 1965-10-18 20271 Orange Vacant lot at corner of Chapman Street and Victor Drive, Fullerton Comment
  UCR239631  Salsola australis Fred M. Roberts 2012-4-24 7513 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
  RSA696279  Salsola kali var. tenuifolia Keith E. Hoffmaster 1927-5-30 s.n. Orange Santa Ana. Comment
  IRVC29830  Salsola tragus Tom McCrainie, Mark A. Elvin 2006-9-23 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
  IRVC418  Salsola tragus A. Adams 1965-5-2 Orange Newport Beach, Corona del Mar, Little Corona Beach. Southern Coastal Comment
  POM713  Salsola tragus D. L. Crawford 1915-09 s.n. Orange Huntington Beach. Comment
  RSA734665  Salvia apiana A. C. Sanders 2008-6-17 35487 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
  UCR228788  Salvia apiana Dick Newell, Don Millar 2011-5-10 153 Orange Peninsular Range; Santa Ana Mtns., above east side of Fremont Canyon on service road just below Lakeview Rd. 455 Comment
  UCR241901  Salvia apiana Fred M. Roberts 2012-4-24 7528 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
  RSA0006683  Salvia apiana J. T. Howell 1927-6-1 5 Orange Botany Garden, Rancho Santa Ana. [original location] 152 Comment
  RSA722336  Salvia columbariae L. C. Hull 1934-5-6 s.n. Orange Trabuco Canyin. Comment
  JEPS62728  Salvia leucophylla Frank W. Peirson 1927-6-20 7349 Orange Rancho Santa Ana; Mrs. Bryant's 182 Comment
  RSA1566  Salvia leucophylla J. T. Howell 1928-7-10 1095 Orange Black Star Canyon, Santa Ana Mts. 457 Comment
  UCR228791  Salvia leucophylla Dick Newell, Don Millar 2011-5-10 147 Orange Peninsular Range; Santa Ana Mtns., along MWD service road between Outdoor Education Center and Fremont Canyon, 0.2 mi. above Peters Cyn. Rd. 193 Comment
  RSA434143  Salvia mellifera F. R. Fosberg 1931-6-21 S- 5141 Orange Silverado Canyon. Santa Anita Mts. Comment
  RSA590946  Salvia mellifera Fred M. Roberts 1991-5-2 4779 Orange San Joaquin Hills: Laguna Canyon, Laguna Laurel, just west of Laguna Canyon Road, c. 2 km N junction El Toro Road, 4.5 kilometers E Signal Peak. 110 Comment
  RSA649077  Salvia mellifera Karl Price 1988-5-22 64 Orange On the side of Hot Springs Canyon Rd. in Hot Springs Canyon. 0.5 mi. North of Ortega Hwy. (74), 12.6 mi. East of San Juan Capistrano. 305 Comment
  UCR252217  Salvia mellifera Amanda C. Swanson 2013-4-21 22 Orange Peninsular Range; Santa Ana Mtns., hiking trail across from Tucker Wildlife Sanctuary, less than 0.1 mi. from trailhead 434 Comment
  RSA0014991  Salvia spathacea Fred M. Roberts 2008-5-14 6967 Orange Lomas de Santiago: Loma Ridge, upper Bee Flat Cyn. below Loma Ridge Rd., 1.3 km N Bee Peak and 5.4 km NW Bolero Lookout, Irvine Ranch Conservancy. 377 Comment
  RSA0043352  Sambucus mexicana David Barrios 1991-5-8 26 Orange 1500 ft. northwest of Fairmont Ave and Quail Cir., Yorba Linda. 365 Comment
  UC1294017  Sambucus mexicana E. K. Balls 1958-6-27 23289 Orange below tower lookout; Santa Ana Mts., Santiago Peak 1661 Comment
  CAS-BOT-BC238826  Sambucus nigra subsp. caerulea Carl B. Wolf 1931-7-24 2292 Orange Ravine at Olinda, lower end of Carbon Canyon 152 Comment
  RSA0073648  Sambucus nigra subsp. caerulea Fred M. Roberts 2012-4-24 7519 Orange San Joaquin Hills: Buck Gully, tributary canyon below San Joaquin Hills Road and 2.0 km W Signal Peak. 167 Comment
  UCR241900  Sambucus nigra subsp. caerulea Fred M. Roberts 2012-4-24 7519 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
  POM201856  Samolus parviflorus L. M. Booth 1932-7-19 s.n. Orange Bolsas Marsh. Comment
  IRVC20782  Sanicula arguta Fred M. Roberts, S. L. Fritzke 1982-4-2 462 Orange hills, 3.5km ESE Aliso Peak; 3.2km ESE Alicia Fire Station, N of Del Avion, Laguna Niguel 100 Comment
  RSA681026  Sanicula arguta Fred M. Roberts, D. E. Bramlet 2003-3-13 5573 Orange Donna O Neill Land Conservancy: Ridge west of Christianitos Canyon, 1.6 km NW Sycamore Gate. 197 Comment
  UCD127918  Sanicula arguta P. B. Kennedy 1924-2-5 s.n. Orange Irvine Range near Santa Ana. Comment
  RSA542436  Sanicula bipinnata Fred M. Roberts 1988-3-15 3853 Orange Rancho Mission Viejo: Verdugo Canyon, 2.6 km ENE Point Rancho Survey Mark 149 Comment
  RSA749638  Sanicula bipinnatifida D. E. Bramlet 2008-4-28 4247 Orange East Fort of Upper Weir Cyn., on the north side of the existing access road. The site is found 1.22km east of the main Cyn. & 122m west of the upper boundary of Gypsum Cyn. 406 Comment
  RSA221030  Sanicula crassicaulis E. W. Lathrop 1966-5-1 6262 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland Nat'l Forest, Santa Ana Mountains. 396 Comment
  RSA680909  Sanicula crassicaulis Scott D. White 2003-3-21 8810 Orange Santa Ana Mountain Foothills: Rancho Mission Viejo. East-facing slopes above an unnamed tributary to San Juan Creek. 122 Comment
  SBBG61402  Sanicula crassicaulis E. Rockwell -Mar-1920 1119 Orange Silverado Cyn Comment
  SD144083  Sanicula crassicaulis Scott D. White 1997-3-28 4832 Orange Santa Ana Mts.: above Modjeska Canyon: proposed water tank site. 424 Comment
  SD236165  Sanicula crassicaulis A. C. Sanders, Fred M. Roberts 2008-5-6 35267 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago, slope SE of road junction along ridge road, near head of Aqua Chinon Cnayon, 2.4 miles north of El Toro 470 Comment
  UCR158816  Satureja chandleri A. C. Sanders, Mark A. Elvin 2005-9-2 31601 Orange Peninsular Range; Santa Ana Mtns., mouth of Lion Canyon near Lower San Juan Picnic Area, San Juan Creek Canyon 427 Comment
  RSA749467  Saxifraga californica Fred M. Roberts 1999-4-22 5187 Orange Lomas de Santiago: tributary to Santiago Creek wash along spur road on ridge between Limestone Cyn. and Santiago Creek wash opposite Williams Cyn., 1.8 km SE Silverado Sch. and 2.3 km NNW Bolero Lookout. 396 Comment
  IRVC19942  Schismus barbatus Gordon A. Marsh, Karlin G. Marsh 1983-5-2 s.n. Orange Burn area between Coal Canyon and Gypsum Canyon. Santa Ana Mountains 421 Comment
  IRVC21985  Schismus barbatus Fred M. Roberts, Gordon Marsh 1985-3-12 1530 Orange mesa west of Ave. Pico and north of El Camino Real, 3.2km SSE Coyote Bluff; 0.6km E Bench Mark 16 (sect. 32), San Clemente 37 Comment
  RSA0089220  Schismus barbatus Fred M. Roberts 2014-4-21 7862 Orange South Coast: San Joaquin Hills: Upper Laguna Lake 1 (upper Laguna Lake), north basin. 113 Comment
  POM202159  Schoenoplectus americanus L. M. Booth 1932-5-30 1134 Orange Bog on south side of Newport Lagoon. Comment
  RSA232208  Schoenoplectus americanus James Henrickson 1970-7-24 4984 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
  UCR186688  Schoenoplectus americanus T. B. Salvato, Katie Kurtz, Mitch Provance 2006-10-15 1909 Orange South Coast, Irvine, San Diego Creek flood control channel, between Campus Drive and Michelson Drive 6 Comment
  UCR247918  Schoenoplectus americanus Fred M. Roberts 2012-7-18 7673 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
  POM1385  Schoenoplectus californicus D. L. Crawford 1916-8-2 736 Orange Laguna Canyon. Comment
  POM1390  Schoenoplectus californicus D. L. Crawford 1916-7-26 s.n. Orange Laguna Canyon. Comment
  POM202034  Schoenoplectus californicus L. M. Booth 1932-6-9 1176 Orange Santa Ana River, 1 mile from ocean. Comment
  RSA357009  Schoenoplectus californicus Robert F. Thorne 1975-4-6 4573 Orange San Joaquin Marsh: Near Irvine and coast. Comment
  UCR85726  Schoenoplectus californicus Scott D. White 1993-4-28 1290 Orange Pacific slope, Tustin Marine Corps Air Station, NW of Peters Canyon Channel, between Moffett Dr. & Warner Comment
  POM50487  Schoenoplectus maritimus Helen D. Geis 501 Orange Peat Lands Comment
  RSA91578  Schoenoplectus maritimus F. W. Peirson 1925-4-12 5749 Orange Laguna Canyon, Laguna Beach. 107 Comment
  JEPS75309  Scirpus americanus L. M. Booth 1932-5-24 1103 Orange Newport Bay Comment
  IRVC29874  Scirpus cernuus Mark A. Elvin, D. Kelch 2006-12-9 5302 Orange Newport Backbay; Big Canyon, lower end. Southern Coastal 3 Comment
  UCR193014  Searsia pendulina A. C. Sanders, Fred M. Roberts 2008-6-17 35500 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, Windy Ridge Rd., saddle on ridge at head, above the Eastern Transportation Corridor 400 Comment
  UC284873  Selaginella asprella P. A. Munz 1923-9-7 7744 Orange Santiago Peak; Santa Ana Mts. 1706 Comment
  RSA518450  Selaginella bigelovii C. W. Tilforth, Dorothy Tilforth 1977-3-6 1254 Orange Small canyon west of Gypsum Canyon, south side of Santa Ana River, Santa Ana Canyon 152 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
  IRVC22654  Selaginella cinerascens D. Bramlet, W. Wright 1986-5-4 Orange knoll above Segundo Deschecha Canada and west of Christianitos Canyon Rancho Mission Viejo 212 Comment
  RSA587117  Senecio aphanactis R. E. Riefner 1994-3-28 94 -206 Orange San Clamente State Beach Comment
  SEINET7067533  Senecio flaccidus A. G. Vestal 1947-6-12 s.n. Orange Santiago Creek Valley north of Santa Ana. Coordinate datum: NAD27. UTM Zone 11, 418529mE, 373676mN. Comment
  UCSB52940  Senecio flaccidus var. douglasii Roberts, Fred 1983-11-4 Orange Santa Ana Mtns.: Main Divide Truck Trail, 0.3km NE Los Pinos Spring; 2.0km ESE Los Pinos Peak 1115 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
  CHSC101560  Senecio linearifolius var. linearifolius Scott D. White 2003-7-7 9613 Orange Irvine. UC Irvine Campus. Directly west of T-intersection of Shady Canyon Cr. w/ Bonita Canyon Dr. (= Culver Dr.). 70 Comment
  OBI64679  Senecio linearifolius var. linearifolius Scott D. White 2004-7-7 10606 Orange South Coast: Laguna Niguel (Dana Point: T8S R8W S9 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
  RSA184082  Senecio vulgaris I. L. Wiggins 1966-2-18 20447 Orange 0.5 mile west of entrance to Rancho Santa Ana Comment
  IRVC24726  Senna multiglandulosa Fred M. Roberts 1986-5-14 2824 Orange Lomas de Santiago; Santiago Canyon Rd., 8.5km NW by road of Silverado Canyon Rd., Santa Ana Mountains 229 Comment
  UCSB52902  Sesuvium verrucosum Roberts, Fred 1983-9-29 Orange Irvine; San Joaquin Freshwater Marsh, 1.6 km. NNW UCI campus center 2 Comment
  IRVC16250  Setaria lutescens Gordon A. Marsh 1977-9-18 s.n. Orange Dana Point: Canyon betweenPaccific Coast Hwy and Del Obispo. Southern Coastal Comment
  CAS-BOT-BC243590  Setaria parviflora Ira L. Wiggins 1965-9-26 20260 Orange Roadside at west end of Orangethorpe Estates subdivision near Atwood. Comment
  CAS-BOT-BC243594  Setaria parviflora Helen D. Geis 1902-1-1 560 Orange Unspecified Comment
  CDA2432  Setaria parviflora T. C. Fuller 1961-10-18 7174 Orange 2 miles east of Atwood. 0 Comment
  RSA588729  Sidalcea malviflora Fred M. Roberts 1990-5-7 4601 Orange Rancho Mission Viejo: Ridge S of Blind Canyon and E of Christianitos Canyon, TRW Lease Holding, 5.0 km NE Clemente Survey Marker 152 Comment
  RSA682910  Sidalcea malviflora Scott D. White, Amanda Duchardt 2003-5-1 9159 Orange Santa Ana Mountain Foothills: Slopes above west side of Trampas Canyon. 107 Comment
  UC1013072  Sidalcea neomexicana C. L. Hitchcock 1952-5-30 19547 Orange about 11 mi e Long Beach (about 100 yards n of Katella Ave to w of Hanson St.); e of Long Beach Comment
  RSA735261  Sidalcea spicata Keith E. Hoffmaster 1931-6-24 s.n. Orange South Fork Santa Ana River. Comment
  RSA539415  Silene antirrhina Fred M. Roberts, Carol A. Roberts 1988-6-9 4088 Orange Santa Ana Mountains: Main Divide Truck Trail, Modjeska Peak, south slope. 0.4km SW summit. 1518 Comment
  RSA749489  Silene antirrhina Fred M. Roberts, Linda Farley 2008-3-28 6823 Orange Santa Ana Mtns.: Upper Weir Cyn., east fork along ridge just west of SR241, 3.4 km E Robber s Peak, Irvine Land Conservancy. 457 Comment
  RSA773513  Silene antirrhina Fred M. Roberts 1999-5-3 5203 Orange Lomas de Santiago: ridge between Limestone Canyon and Santiago Canyon Wash, 0.4 km SE Silverado School, and 3.9 km Bolero Lookout 351 Comment
  CAS-BOT-BC384500  Silene antirrhina Helen D. Geis 1902-3-1 s.n. Orange Santiago Creek Comment
  RSA606442  Silene antirrhina Jon E. Keeley 1994-4-5 25281 Orange First year burn, east end of Caspers Park S-7 (Keeley 1994) 215 m. 215 Comment
  UCSB50630  Silene laciniata subsp. laciniata Roberts, Fred 1982-7-20 Orange Santa Ana Mtns.; Main Divide Extension, 3.0 km. by road NE Falcon Group camp; 3.4 km. E Los Pinos Peak 1027 Comment
  RSA175135  Silene laciniata subsp. major R. F. Thorne 1963-7-26 32842 Orange Tin Mine Canyon above Beek s Spring, Trabuco District, Santa Ana Mountains, Cleveland National Forest. 762 Comment
  RSA438883  Silene laciniata subsp. major E. A. McGregor 1964-6-4 s.n. Orange On Highway 74, between Elsinor and San Juan Capistrano. 914 Comment
  RSA438884  Silene laciniata subsp. major F. R. Fosberg 1931-6-2 748 Orange Silverado Canyon, Santa Ana Mountains. Comment
  RSA553117  Silene laciniata subsp. major Fred M. Roberts, Carol A. Roberts 1989-5-11 4349 Orange Santa Ana Mountains: Upper Blind canyon, east fork, along power line maintainance road, 3.9km SE Walnut Reservoir. 381 Comment
  RSA653177  Silybum marianum David Barrios 1991-5-8 32 Orange 1500 ft. Northwest of Fairmont Ave and Quail cir. 365 Comment
  CAS-BOT-BC75037  Sisymbrium altissimum John Thomas Howell 1927-6-6 2448 Orange Santa Ana River bottom, Santa Ana Canyon. 152 Comment
  CAS-BOT-BC75235  Sisymbrium irio Ira L. Wiggins 1965-10-7 20363 Orange Vacant lot between State College Boulevard and Troy High School campus, Fullerton. Comment
  HSC7000  Sisymbrium officinale S. M. Clapp 1966-4-7 28 Orange 3 mi. from Modjeska Canyon towards Silverado Canyon 152 Comment
  HSC13926  Sisyrinchium bellum S. M. Clapp 1966-4-10 32 Orange 4 mi. into Black Star Canyon 183 Comment
  RSA697825  Sisyrinchium bellum Anonymous s.n. Orange Near Orange Co. Park. 793 Comment
  UCR154353  Solanum americanum Mark A. Elvin 2004-5-2 3415 Orange Southern Coastal, Irvine: San Joaquin Freshwater Marsh, near Campus and University Drives; 1.7 km (air) NNW UC Irvine campus center 3 Comment
  UCSB17923  Solanum americanum Gerhart, Janet 1963-2-22 Orange Trabuco Canyon, 1/2 miles above locked gate on dirt road, 17.5 miles east of U.S. Highway 101 at El Toro Marine Base 396 Comment
  CDA41598  Solanum douglasii P. Akers 2006-3-25 7 06 a Orange Yorba Linda. Santa Ana River, S. of La Palma Dr., 0.6-0.9 mi. E of Yorba Linda Dr. 121 Comment
  POM201715  Solanum douglasii L. M. Booth 1932-5-19 1075 Orange Newport Bay. Comment
  RSA747697  Solanum douglasii Fred M. Roberts 2008-4-16 6915 Orange Dana Point: Dana Point Headlands, CNLM Preserve, near Strands Road Gate, 0.8km WNW Marine Institute, Dana Point Harbor. 71 Comment
  RSA733736  Solanum douglasii Goldie Peale 1932-5-1 s.n. Orange Outskirts of Orange. Near Lemon Heights Blvd. Comment
  SEINET12274722  Solanum douglasii J. F. Bright, Wyman, C. 1933-1 8202 Orange in foothills near Laguna Comment
  UCR186139  Solanum nigrum T. B. Salvato, Katie Kurtz 2006-10-15 1919 Orange South Coast, Irvine, San Diego Creek flood control channel, near Michelson Drive and Harvard Avenue 6 Comment
  UCD126949  Solanum nigrum R. Townsend 1939-12-28 158 Orange Highway west of Atwood. Comment
  SD43527  Solanum rostratum E. Johnson 1946-8-22 11531 Orange sandy river bottom, Rancho Santa Ana, Santa Ana Canyon 399 Comment
  POM212279  Solanum umbelliferum Carl B. Wolf 1931-3-6 1850 Orange 0.5 mi. below Trabuco Camp Ground, Trabuco Canyon, west slope of the Santa Ana Mts. 610 Comment
  RSA554628  Solanum umbelliferum Scott D. White 1992-10-13 959 Orange Vicinity of city of Brea, immediately N of Carbon Canyon Road and East of Placentia Avenue. +- 1 mile (airline) S/SE of Tonner Canyon. 183 Comment
  RSA731988  Solanum umbelliferum A. C. Sanders, Fred M. Roberts 2008-4-8 34780 Orange Peninsular Range: Lomas de Santiago, SSE os f Santiago Reservoir on Harding Truck Trail at Dripping Springs Loop, above Limestone Canyon. 475 Comment
  RSA0058058  Solanum umbelliferum var. glabrescens Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49672 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. 457 Comment
  NY820525  Solanum xanti F. M. Reed 1928-2-10 5712 Orange Arch Beach 46 Comment
  RSA0045319  Solanum xanti G. Jentges 1932-4-9 35 Orange Orange Park Acres. Comment
  IRVC15142  Solidago californica A. S. Boughey 1968-7-9 398 Orange Santa Ana mtns: upper Santiago Canyon. Peninsular Ranges Comment
  RSA7474  Solidago californica C. B. Wolf 1933-8-24 5398 Orange Summit of Santiago Peak, Santa Ana Mountains 1732 Comment
  RSA749303  Solidago californica Fred M. Roberts 1999-4-21 5176 Orange Lomas de Santiago: Loma Ridge, west slope of central Limestone Cyn., about 1.1 km W Silverado Sch. and 4.5 km NNW Bolero Lookout. 326 Comment
  RSA0051386  Solidago californica Robert F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49600 Orange Santa Ana Mountains: rocky ravine tributary to San Juan Canyon, along Ortega Highway (74) about 2 miles above San Juan Fire Station. Comment
  CDA7681  Sonchus arvensis subsp. arvensis E. Johnson, Goodwin 1939-1 Orange 0 Comment
  RSA0127412  Sonchus asper Fred M. Roberts 2016-3-17 8007 Orange San Joaquin Hills: City of Irvine, Bommer Canyon, east fork, 0.3 km ESE Cattle Camp near East Fork Trail. 152 Comment
  UCR192457  Sonchus asper A. C. Sanders, Fred M. Roberts 2008-3-25 34553 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  POM202167  Sonchus oleraceus L. M. Booth 1932-6-15 1193 Orange Marsh border East of Huntington Beach. Comment
  RSA653178  Sonchus oleraceus David Barrios 1991-5-8 29 Orange 1500 ft. Northwest of Fairmont Ave and Quail cir. 365 Comment
  CAS-BOT-BC374658  Sonchus oleraceus Ira L. Wiggins 1966-2-1 20406 Orange Orange grove just east of Letters & Science building, California State College at Fullerton Comment
  POM202168  Sonchus oleraceus L. M. Booth 1932-7-21 1297 Orange Near Sunset Beach, Anaheim Marsh. Comment
  RSA647892  Sonchus oleraceus Mark Breidenbaugh, Caralisa Breidenbaugh 1992-5-24 30 Orange 1000 ft. northwest of Chino Hills State Park Boundary. 243 Comment
  IRVC23156  Sorghum halepense Fred M. Roberts 1985-7-11 2016 Orange San Joaquin Hills: Laguna Canyon, Laguna Canyon Road near Laguna Lakes, 5.0km ENE Signal Peak. southern coastal 112 Comment
  IRVC24181  Sorghum halepense Fred M. Roberts 1985-9-17 2258 Orange Irvine; lot between Walnut Avenue, Harvard Avenue and Peter's Creek Channel. southern coastal 20 Comment
  UC537017  Sorghum halepense L. M. Booth 1932-7-18 1265 Orange Costa Mesa Comment
  CLARK-A1528-5031  Spartina foliosa John C. Roos 1937-9-1 427 Orange Seal Beach Comment
  POM262908  Spartina foliosa J. C. Roos 1937-9-1 427 Orange Seal Beach. Comment
  RSA234494  Spartina foliosa James Henrickson 1970-7-24 5024 Orange 2.5 miles NW of Huntington Beach along south channel of Inner Bolsa Bay, adj. top Pacific Coast Hwy in bolsa Chica Salt Marsh Comment
  SD80955  Spartina foliosa James Henrickson 1970-7-24 5024 Orange 2I(c) miles NW of Huntington Beach along south channel of Inner Bolsa bay, adjacent to Pacific Coast Hy. in Bolsa Chica Salt Marsh Comment
  UCD92994  Spartina foliosa Peter H. Raven 1957-9-28 11379 Orange north limits of Surfside. Comment
  CSUSB1332  Spartium junceum Cesareo Perez 1971-5-4 Orange South Mesa Drive and Lemon Street in Villa Park Comment
  RSA696570  Spergula arvensis Elisabeth Norland 1929-3-16 s.n. Orange Costa Mesa. Comment
  SD185179  Spergularia B. G. Pitzer 1996-4-30 2791 Orange Crystal Cove State Park. 14 Comment
  UCR157693  Spergularia Adrian Wolf 1998-5-15 277 Orange South Coast, Lambert Reservoir, north of El Toro Marine Corps Air Station 134 Comment
  UCR220960  Spergularia Dick Newell, Don Millar 2010-4-20 18 Orange South Coast Region, west ridge of Bommer Canyon at base of future trail, 1.86 km south of Shady Canyon 137 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
  RSA0097855  Spergularia bocconi L. M. Booth 1932-5-24 1095 Orange Newport Bay, Public Golf Course. Comment
  IRVC20156  Spergularia bocconii R. L. Allen 1978-4-1 Orange 60m NE Golden Lantern [and Acapulco Rds.] jct. Dana Point Comment
  SEINET3155830  Spergularia macrotheca L. Abrams 1903-4-17 3258 Orange between Tustin and Myford Comment
  UCR220089  Spergularia macrotheca var. macrotheca Fred M. Roberts 2008-5-7 6943 Orange Lomas de Santiago, Limestone Ridge between Dripping Spring and Limestone Canyon, 3.5 km NW of Bolero Lookout and 1.7 km east of Bee Peak. Irvine Ranch Conservancy 481 Comment
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Feb 27 2019
  CAS-BOT-BC390853  Spergularia marina Carl B. Wolf 1932-7-2 3817 Orange Carbon Canyon, 1/8 mi. below La Vida Springs 213 Comment
  CAS-BOT-BC390858  Spergularia marina Munz; Street; Williams 1919-5-4 2682 Orange Laguna Canon [Canyon] Comment
  POM6346  Spergularia salina P. A. Munz, L. T. Street, G. Williams 1919-5-4 2682 Orange Laguna Comment
  RSA5910  Spergularia salina C. B. Wolf 1932-7-2 3817 Orange Carbon Canyon, 1/8 mile below La Vida Springs 213 Comment
  RSA0098710  Spergularia villosa L. M. Booth 1932-5-24 1089 Orange Near Bay Shore Camp, Newport Bay. Comment
  UCR186146  Sphaeralcea emoryi var. emoryi Robert DeRuff 1994-4-24 452 Orange Southern Coast, Newport Beach, Newport Back Bay, at top and bottom of a draw between 23rd St. and the Delhi Channel 5 Comment
  RSA733957  Sphaeralcea fasciculata Keith E. Hoffmaster 1927-5-15 458 Orange Lemon Heights. Comment
  IRVC26743  Spiloxene ovata Mark A. Elvin, J. Liou, J. Carpenter, J. Nguyen 2004-3-8 3161 Orange UCI Arboretum Southern Coastal 15 Comment
  UC284865  Stachys ajugoides var. rigida P. A. Munz 1923-9-7 7756 Orange trail from Holy Jim Canyon Santiago Peak; Santa Ana Mts. 1310 Comment
  SBBG105052  Stachys rigida S. Boyd, D. Banks 1994-4-5 8276 Orange ridgeline between Lucas and Verdugo Cyns W of Verdugo Potrero, near transit point "Lucas" 426 Comment
  POM4078  Stachys rigida subsp. quercetorum P. A. Munz 1918-5-4 2213 Orange Laguna Beach Comment
  RSA542483  Stachys rigida subsp. quercetorum Fred M. Roberts, R. E. Riefner 1988-7-19 4115 Orange Santa Ana Mountains; Maple Springs Truck Trail, Upper Silverado Canyon, 1.9km N Modjeska Peak. 1128 Comment
  RSA82576  Stachys rigida subsp. quercetorum F. W. Peirson 1923-9-7 4039 Orange Santa Ana Mountains; Trail Trabuco Canyon to Santago Peak. 1220 Comment
  UCR261712  Stachys rigida subsp. quercetorum Dick Newell, Don Millar 2015-3-24 394 Orange South Coast, San Joaquin Hills, on Willow Canyon Trail 0.2 mi. west of Laguna Coast Wilderness Park entrance off Laguna Canyon Rd. 88 Comment
  RSA0119681  Stellaria media Fred M. Roberts 2015-3-10 7924 Orange San Joaquin Hills: Niguel Hill, on ridge above Aliso Canyon ear end of Ceanothus Drive (Hangover House property), 0.4 km WNW summit Aliso Peak. 122 Comment
  RSA737532  Stellaria media Fred M. Roberts 2008-3-12 6730 Orange Dana Point: Dana Point Headlands CNLM Preserve, western side, c.a. 0.8 km W Marine Institute (Dana Point Harbor). 50 Comment
  CAS-BOT-BC393819  Stellaria media Ira L. Wiggins 1966-3-1 20484 Orange Corner of South Campus Drive and State College Blvd., Fullerton Comment
  RSA2075  Stellaria media C. B. Wolf 1931-3-6 1854 Orange Trabuco Canyon at Trabuco Campgrounds west slope of Santa Ana Mts. 610 Comment
  SDSU4468  Stellaria media R. M. Beauchamp 1968-2-17 772 Orange 2 miles north of El Toro Road intersection. Comment
  UCR193852  Stephanomeria A. C. Sanders, Fred M. Roberts 2008-7-16 35827 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, along road in lower Limestone Canyon, near junction with Harding Truck Trail 290 Comment
  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
  RSA699169  Stephanomeria virgata J. Vlahos 1933-10-5 s.n. Orange French Hill. 5 mi. east of airport. Comment
  UCR281508  Stipa lepida Mitch Provance, Jeremiah George 2017-3-20 317- 102 Orange West Coyote Hills, Fullerton, vicinity of Utility Access Road W of Gilbert Street and N of Rosecrans Ave., on land previously occupied by oil fields. 131 Comment
  POM1023  Stuckenia pectinata D. L. Crawford 1916-7-26 s.n. Orange Aliso Canyon Comment
  UCR158027  Stylocline gnaphaloides Adrian Wolf 1998-5-15 293 Orange South Coast, Dana Point Headlands, north of Scenic Dr. 67 Comment
  UCR192110  Stylocline gnaphaloides A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35311 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along fire line/bulldozer cut, c. 1.5 mi. east of Walnut Cyn Reservoir 346 Comment
  POM413  Stylomecon heterophylla P. A. Munz 1918-5-4 2171 Orange Laguna. Comment
  UC1123319  Styrax officinalis var. redivivus A. Lewis Apr 1934 380 Orange 2 mi ne Santiago Coal Mine; Cleveland National Forest, Corona Quad. Comment
  UC2042135  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
  POM122884  Suaeda calceoliformis Marcus E. Jones 1924-8-26 s.n. Orange Newport. Comment
  IRVC23985  Suaeda calceoliformis R. De Ruff 1988-6-5 Orange Newport Backbay, road just east of Shellmaker Island, Newport Beach 0 Comment
  RSA678455  Suaeda esteroa Valerie Soza, Kevin B. Clark, LeRoy Gross, Will Miller, Fred Roberts, Gary D. Wallace 2001-4-4 1108 Orange Seal Beach National Wildlife Refuge: Seal Beach U. S. Naval Weapons Station, across access road from Nature Center (Bldg 226). 3 Comment
  RSA758773  Suaeda esteroa Anstruther Davidson 1931 Orange Newport Comment
  SEINET179446  Suaeda esteroa Lawrence M. Booth 1932-12-13 1373 Orange Newport Bay. 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
  JEPS59882  Suaeda taxifolia Lawrence M. Booth 1932-8-5 1364 Orange Newport Bay 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
  UCR157703  Suaeda taxifolia Adrian Wolf 1998-5-27 330 Orange South Coast, Newport Oil Fields, bluff adjacent to Pacific Coast Highway, c. 250 ft. from ocean, near entrance to oil fields; between Huntington Beach, Costa Mesa and Newport Beach, just south of the channelized mouth of the Santa Ana River 8 Comment
  POM692  Suaeda taxifolia P. A. Munz 2179 Orange Lugana 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
  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
  RSA543969  Symphoricarpos mollis Steve Boyd, Orlando Mistretta 1991-5-9 6200 Orange Crest of range at Oak Flat, SE of Sierra Peak, just Wes