Search Results — 2000 specimen records retrieved (1584 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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A yellow cell in the column headed "?", for records with coordinates, indicates a discrepancy with respect to range as specified in the eFlora. Read more ...
? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  RSA460928  Abronia maritima E. S. Spalding 1923-11-29 s.n. Orange Near San Juan Capistrano Comment
  SD181444  Abronia maritima Valerie Sosa, Kevin Clark, LeRoy Gross, et al. 2001-4-4 1116 Orange Anaheim Bay: Seal Beach U. S. Naval Weapons Station, southwestern edge of Seal Beach National Wildlife Refuge 3 Comment
  RSA640716  Abronia umbellata Louis C. Wheeler 1931-8-17 s.n. Orange Balboa. Comment
  RSA678513  Abronia umbellata subsp. umbellata Valerie L. Soza, K. Clark, LeRoy Gross, Will Miller, Fred M. Roberts, Gary D. Wallace 2001-4-4 1130 Orange Anaheim Bay: Seal Beach U. S. Naval Weapons Station, southwestern edge of Seal Beach National Wildlife Refuge. 3 Comment
  UC536922  Abronia villosa Lawrence M. Booth 1932-7-30 1341 Orange 2 mi from ocean; Santa Ana River Comment
  RSA727606  Abutilon palmeri R. E. Riefner Jr. 2006-9-5 06 -418 Orange Southern Coast: Corona del Mar, Ocean Blvd. Near Iris Ave. 11 Comment
  RSA0023451  Acacia Scott D. White 1998-4-9 6267 Orange University of Calif. Irvine Campus; Drainage channel west of Medical Center, west of main campus circle. 15 Comment
  RSA752716  Acacia longifolia Fred M. Roberts, Sandy Leatherman, Jennifer Pareti 2009-4-14 7152 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
  UCSB57545  Acacia longifolia Roberts, Fred 1984-3-15 Orange Newport Beach; Newport Backbay, along Back Bay Dr., 3.0 km. W University of California, Irvine campus center 2 Comment
  UCR24737  Acacia podalyriifolia Sue Freeman 1966-11-4 s.n. Orange Across Hwy 1 from San Clemente Beach at the foot of a grassy shrubby cliff Comment
  IRVC29884  Acacia saligna Mark A. Elvin, D. Kelch, Barry S. Nerhus, Patricia Iluore 2006-12-9 5325 Orange Newport Backbay; along Bayside Drive ca. 100 m W of Eastbluff Dr. Southern Coastal 5 Comment
  IRVC23426  Acer macrophyllum Fred M. Roberts 1985-7-26 2087 Orange Santa Ana Mtns: Upper trabuco Cyn, 1.3 km NE Los Pinos Pk. Peninsular Ranges 1225 Comment
  RSA456  Acer macrophyllum J. T. Howell 1927-7-26 478 Orange Claymine Ca - on near Sierra Peak. 244 Comment
  UCSB47632  Acer macrophyllum Roberts, Fred 1980-5-3 Orange 2.2km SE Trabuco Peak, Santa Ana Mtns 1234 Comment
  UCD128336  Achillea millefolium Steve Mason; Pam Rector 1993-4-16 4 Orange Laguna Niguel, Sea View Park Trail, about 25 yards up trail on left side, on border between disturbed terrain and coastal sage scrub. Near housing development overlooking canyon and coastline. 182 Comment
  RSA696762  Achillea millefolium C. H. Mueller 1932-5-30 s.n. Orange Corner Cleveland and Chapman Comment
  RSA542360  Achnatherum coronatum Fred M. Roberts 1988-4-8 3897 Orange Lomas de Santiago: Loma Ridge, Central Linestone Canyon, 4.1 kilometers NNW Bolero Lookout. 323 Comment
  RSA0028970  Achnatherum coronatum Keith E. Hoffmaster 1935-4-14 603 Orange Live Oak can. Comment
  SBBG103893  Acmispon americanus B. Pitzer, S. Hemstreet 1992-5-27 1966 Orange USFS Rd 3S04 to Blue Jay Group Cmpgrd, off St Hwy 74, ca. 2 air mi W of El Cariso Cmpgrd 762 Comment
  UCSB42431  Acmispon glaber Fountain, L. 1966-5-6 Orange Imperial Highway near Associated Road Comment
  UCR267188  Acmispon glaber var. glaber Fred M. Roberts 2010-3-12 7180 Orange Southeast Coast, DANA POINT HEADLANDS: Harbor Point Park, South of Green Lantern and west of Dana Point Harbor, c. 150 meters SE Interpretive Center 50 Comment
  UCSB48115  Acmispon strigosus Roberts, Jr., Fred 1981-4-12 Orange Santa Ana Mountains; San Juan Canyon, Hwy. 74, 1.3 km. by road E San Juan Guard Station; 0.9 km. SE Juan Rancho Survey Mark 295 Comment
  RSA0027783  Adenostoma fasciculatum Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49680 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak] 457 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
  RSA594813  Adenostoma fasciculatum var. obtusifolium Fred M. Roberts, T. Keeler-Wolf, D. Hogan 1993-5-11 4882 Orange Laguna Beach: South Laguna, Upper Hobo Canyon, 1.4 km NNW Aliso Peak. 201 Comment
  RSA687673  Adiantum capillus-veneris Albert J. Perkins 1913-3-6 s.n. Orange San Juan Hot Springs Comment
  RSA739277  Adiantum capillus-veneris R. E. Riefner 2008-7-9 08 -218 Orange Orange County: City of Laguna Beach, bluff area W of W St. and Pacific Coast Hwy. 6 Comment
  RSA610231  Adiantum capillus-veneris Fred M. Roberts 1997-4-19 5012 Orange Santa Ana Mtns. San Juan Canyon along San Juan Creek at CA Rte 74 bridge just E of San Juan Hot Springs, 0.8 km SSE Juan Rancho Survey Mark. 235 Comment
  RSA739331  Adiantum jordanii Keith E. Hoffmaster 1928-1-26 29 Orange Santa Ana Mtns Comment
  SEINET10470274  Adiantum jordanii G. B. Grant 1904-4-20 Grant 26 Orange Shady, rocky, moist. Catalina Island. Comment
  IRVC3117  Adiantum raddianum Pat Rolfe 1965-4-20 HS 0581 Orange Newport Beach: Back Bay. Southern coastal Comment
  NY7051  Agoseris cinerea L. Abrams 1901-6-15 1816 Orange Santiago Peak trail. 914.4 Comment
  UC1595640  Agoseris grandiflora Steve Boyd and Orlando Mistretta 1991-5-9 6198 Orange Santa Ana Mountains, crest of range at Oak Flat, SE of Sierra Peak, just W of Riverside County line. Comment
  CAS-BOT-BC13326  Agoseris retrorsa L. R. Abrams 1901-6-15 1845 Orange Santiago Peak Comment
  UCR193834  Agrostis pallens A. C. Sanders, Fred M. Roberts 2008-7-16 35851 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Limestone Canyon 325 Comment
  UCR219855  Agrostis pallens Fred M. Roberts 2008-6-3 7029 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, East Fork Rattlesnake Canyon, c. 2.6 km NE Rattlesnake Reservoir spillway and 2.4 km ENE Bee Peak 225 Comment
  RSA6042  Agrostis stolonifera C. B. Wolf 1932-7-13 3722 Orange Fullerton. 53 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
  RSA366464  Allium haematochiton M. B. Dunkle 1933-3-5 3085 Orange San Juan Canyon. Comment
  RSA443849  Allium haematochiton Karlin G. Marsh 1984-2-14 s.n. Orange Casper s Regional Park: just south of Lower Lucas Canyon, ca. 135 m. 135 Comment
  UCSB52871  Allium haematochiton Roberts, Fred; Marsh, G. 1983-3-30 Orange UC Irvine Ecological Preserve, 0.8 km. SSW UCI campus center 60 Comment
  RSA0063248  Allium marvinii Gordon Marsh, Karlin G. Marsh 1978-5-13 s.n. Orange Santa Ana Mountains: Coal Canyon; Ridge along Main Divide Road, S portion of acreage. 732 Comment
  RSA678523  Allium monticola Fred M. Roberts, David E. Bramlet 2002-6-6 5526 Orange Main Divide Truck Trail, west slope of Modjeska Peak, 0.4km WNW summit. 1457 Comment
  CAS-BOT-BC132051  Allium peninsulare var. peninsulare P. C. Everett; E. R. Johnson 1935-5-29 7092 Orange Santa Ana Mts., Summit of Claymine Canyon 762 Comment
  RSA548870  Allium praecox Fred M. Roberts 1987-4-3 3342 Orange Irvine: San Joaquin Hills, Central Shadey Canyon, 2.8 kilometers NE Signal Hill. 103 Comment
  RSA539355  Allophyllum glutinosum Fred M. Roberts, Carol A. Roberts 1988-6-9 4085 Orange Santa Ana Mountains: Modjeska Peak, 0.9km SW summit. 1542 Comment
  RSA220966  Alnus rhombifolia E. W. Lathrop 1966-3-23 6100 Orange 4 miles northeast of Lake Irvine, Black Star Canyon, Cleveland National Forest, Trabuco District. Comment
  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
  UCR239642  Alnus rhombifolia Fred M. Roberts 2012-5-9 7557 Orange Santa Ana Mountains, Lake Forest, along Serrano Creek hiking trail, 1.0 m south-southwest of intersection of Commercentre and Dimension Drives 171 Comment
  UCR26948  Alnus rhombifolia E. W. Lathrop 1966-3-23 6100 Orange Santa Ana Mtns, Cleveland National Forest, Trabuco District. 4 mi. NE of Lake Irvine, Black Star Canyon Comment
  SEINET10572636  Aloe Charlene A. Bennett 1976-7-21 Bennett 431 Orange Cultivated plants collected in and around the condominium pacific island Estates in laguna hills; some native shrubs, etc. 152 Comment
  UCR152756  Alopecurus saccatus D. E. Bramlet 2003-6-8 3462 Orange South Coast, Fairview Park in Costa Mesa, 152 m west of Canyon School and 396 m NW of intersection of Wilson & Canyon Dr. 24 Comment
  CLARK-A1528-917  Amaranthus albus Patricia A. Andrews 1975-6-26 5914 Orange Capistrano Bay Beach 9 Comment
  UCR191461  Amaranthus blitoides A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34655 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
  RSA724073  Amaranthus blitum subsp. emarginatus R. E. Riefner 2004-9-25 4 -442 Orange City of Yorba Linda, N floodplain of Santa Ana River near Yorba Linda Regional Park. 98 Comment
  RSA542441  Amaranthus deflexus Fred M. Roberts 1988-10-21 4161 Orange Irvine: Michelson bridge at San Diego Creek. 4 Comment
  RSA592066  Amaranthus deflexus R. E. Riefner 1995-7-27 95 -318 Orange S bluff area of San Clemente Beach. 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
  JEPS17300  Amblyopappus pusillus L. M. Booth 1932-5-12 1007 Orange Newport Bay Comment
Read comments
Jul 18 2007
  RSA743511  Amblyopappus pusillus Fred M. Roberts 2008-4-9 6862 Orange Dana Point: Dana Point Headlands, CNLM Preserve near Outlook 2, 0.7 km W Marine Institute (Dana Point Harbor). 45 Comment
  UCR158158  Amblyopappus pusillus Adrian Wolf 1998-5-27 336 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
  UCR99550  Amblyopappus pusillus B. G. Pitzer, P. Gomez 1996-4-30 2795 Orange San Joaquin Hills, Crystal Cove State Park, south of City of Irvine on State Hwy 1 (Pacific Coast Hwy) 15 Comment
  CAS-BOT-BC13608  Ambrosia acanthicarpa John Thomas Howell 1927-10-22 3164 Orange In Santa Ana River bottom, Santa Ana Canyon 152 Comment
  RSA0106317  Ambrosia acanthicarpa Lyman Benson 1946-5-13 12091 Orange Corona del Mar. 15 Comment
  CAS-BOT-BC13769  Ambrosia chamissonis David D. Keck 1933-9-8 2522 Orange Sunset Beach Comment
  JEPS40940  Ambrosia chamissonis L. M. Booth 1932-7-30 1336 Orange Balboa Island Comment
  RSA643442  Ambrosia chamissonis R. D. Goeden, D. W. Ricker 1970-2-19 s.n. Orange Pacific Coast: Newport Beach, NW edge of town between Seashore Dr., Neptune Ave.. 56th and 58th Streets., 33deg. 37.2'N, 117deg. 57'W 2 Comment
  RSA747703  Ambrosia chamissonis Fred M. Roberts 2008-5-16 6976 Orange Dana Point: Dana Point Headlands, CNLM Preserve, along north slopes above Dana Strand Beach, 0.8km WNW Marine Institute, Dana Point Harbor. 45 Comment
  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
  UCR109972  Ambrosia chamissonis R. D. Goeden, Don W. Ricker 1970-2-19 s.n. Orange South Coast, Newport Beach, NW edge of town between Seashore Dr., Neptune Ave., 56th and 58th Streets 2 Comment
  UCSB48034  Ambrosia chamissonis Roberts, Fred 1981-9-26 Orange Huntington Beach; Calif. Rte. 1, near mouth of Santa Ana River, 0.1 km. N jct. Brookhurst Ave.; 0.1 km. SW Bench Mark 7 2 Comment
  CAS-BOT-BC45060  Ambrosia psilostachya Ira L. Wiggins 1965-10-27 20304 Orange Roadside just SW of Los Angeles County line along Brea Canyon Road Comment
  RSA416992  Ambrosia psilostachya Joseph A. Ewan 1931-7-31 4765 Orange Smeltzer. Choking irrigation ditch Comment
  RSA743386  Ambrosia psilostachya Fred M. Roberts 2008-7-10 7066 Orange Dana Point: Dana Point Headlands, CNLM Preserve, along north slopes above Dana Strand Beach, 0.8km WNW Marine Institute, Dana Point Harbor. 45 Comment
  SD241729  Ambrosia psilostachya T. B. Salvato 2010-9-27 5121 Orange South Coast: Dana Point Headlands, Harbor Point Park, south of Scenic Drive and Cover Road, beyond the end of Green Lantern Street, overlooking Dana Point Harbor (Dana Point 7.5'Q) 60 Comment
  UCR197676  Ambrosia psilostachya A. C. Sanders, Fred M. Roberts 2008-9-18 36073 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge 330 Comment
  UC217856  Ammannia robusta P. A. Munz 1922-9-2 6353 Orange Laguna Canyon 45 Comment
  RSA7462  Amorpha californica C. B. Wolf 1933-8-24 5380 Orange 1/2 mile below summit of Bedford Motorway, east slope of Santa Ana Mountains. 976 Comment
  UC527692  Amorpha fruticosa B. D. Stark 1931-10-17 2463 Orange Santa Ana Canyon Rancho Santa Ana 137 Comment
  UCD170780  Amorpha fruticosa Dick Newell; Don Millar 2012-5-22 260 Orange Peninsular Range; Santa Ana Mtns., mouth of Fremont Canyon, 0.4 mi. NE of Irvine Dam spillway. 207 Comment
  RSA680914  Amsinckia intermedia Scott D. White 2003-3-21 8812 Orange Santa Ana Mountain Foothills: Rancho Mission Viejo. East-facing slopes above an unnamed tributary to San Juan Creek. 122 Comment
  SBBG40481  Amsinckia intermedia J. Ingram 1960-3-29 257 Orange 3 mi above O'Neill Park, Trabuco Cyn Comment
  UC1178237  Amsinckia intermedia Francia Chisaki 1957-4-3 927 Orange 6 mi s Irvine (just s of El Toro near top of hill on Hwy 101) Comment
  UCR222382  Amsinckia intermedia Mark A. Elvin 2003-1-26 2236 Orange South Coast, Irvine, UC Irvine Open Space Preserve, NE side, between core of UCI campus (E Peltason Dr.) and Hwy 73 69 Comment
  RSA0089627  Amsinckia intermedia Marcus E. Jones 1926-3-13 s.n. Orange Santa Ana Canyon. Comment
  IRVC29097  Amsinckia menziesii Fred M. Roberts 1989-3-17 4212 Orange Aliso Canyon, 3.3km SSE Moulton Pk. Aliso-Wood Canyon Regional Park 30 Comment
  UCR102014  Amsinckia menziesii B. G. Pitzer 1997-3-25 3008 Orange San Joaquin Hills, Crystal Cove State Park, Pelican Point Area, grassland between Pacific Coast Hwy and the bike trail 30 Comment
  IRVC22198  Amsinckia menziesii var. intermedia Fred M. Roberts 1985-4-8 1636 Orange San Joaquin Hills, Turtle Rock area, hill 1.1km SE French Hill, Irvine 196 Comment
  IRVC245  Amsinckia menziesii var. intermedia D. Orr 1965-3-27 Orange Trabuco Rd. 3mi E El Toro Marine Base. El Toro Comment
  IRVC9355  Amsinckia menziesii var. intermedia B. T. Gittins 1963-4-21 179-A Orange Newport Back Bay. Newport Beach Comment
  IRVC25566  Amsinckia menziesii var. menziesii Fred M. Roberts 1989-3-17 4212 Orange Aliso Canyon, 3.3km SSE Moulton Pk. Aliso-Wood Canyon Regional Park 30 Comment
  RSA678449  Anagallis arvensis Valerie L. Soza, Kevin B. Clark, LeRoy Gross, Will Miller, Fred Roberts, Gary Wallace 2001-4-4 1123 Orange Seal Beach U. S. Naval Weapons Station, southwestern edge of Seal Beach National Wildlife Refuge. 3 Comment
  SBBG61500  Anemopsis californica M. N. Ackley -May-1926 987 Orange Sunset Beach 8 Comment
  UCR107223  Anemopsis californica Scott D. White 1998-5-31 6567 Orange University of California, Irvine campus, SW of Farm School site (now proposed as Student Recreation Center). 37 Comment
  RSA0037236  Anemopsis californica Dorothy Parsons 1932-5-11 s.n. Orange Santa Ana road. CP3. Comment
  CDA6811  Anthemis cotula Robert L. Pope 1957-6-21 Orange Moulton Ranch. 0 Comment
  RSA647882  Anthemis cotula Mark Breidenbaugh, Caralisa Breidenbaugh 1992-5-25 71 Orange 1/2 mile south of Chino Hills State Park Boundary. 228 Comment
  RSA539362  Antirrhinum coulterianum Fred M. Roberts, Carol A. Roberts 1988-6-9 4075 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
  RSA734596  Antirrhinum coulterianum A. C. Sanders, Fred M. Roberts 2008-5-6 35225 Orange Lomas de Santiago, lower Hicks Canyon, just above tollway (Hwy 241) crossing on Irvine Haul Rd., near debris basin. 216 Comment
  UCR191244  Antirrhinum nuttallianum A. C. Sanders 2008-4-29 35135 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, western end of Loma Ridge on road to sheriff's training facility, c. 1.5 mi. SW of Santiago Reservoir 335 Comment
  POM184317  Antirrhinum nuttallianum subsp. nuttallianum L. M. Booth 1932-7-4 1260 Orange On permantant dunes back from beach Mouth of Santa Ana River 0 Comment
  POM354914  Antirrhinum nuttallianum subsp. nuttallianum M. B. Dunkle 1934-6-18 3994 Orange San Juan Canyon; Southern Coastal 305 Comment
  UCR98215  Apium graveolens B. G. Pitzer 1997-4-15 3136 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
  POM201612  Apium graveolens L. M. Booth 1932-6-7 1158 Orange Newport Lagoon. Comment
  RSA0002591  Apium graveolens var. graveolens F. W. Peirson 1924-5-31 4656 Orange Open Canyon, Laguna Beach. 91 Comment
  RSA0054901  Arabis glabra Keith E. Hoffmaster 1934-4-22 178 Orange Santa Ana mts. [Orange or Riverside]. Comment
  RSA308986  Aralia californica James R. Shevock 1976-10-28 5358 Orange Along Silverado Canyon road in the vicinity of Bigcone Spring, Santa Ana Mts, Cleveland National Forest. 915 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
  CAS-BOT-BC128676  Arbutus menziesii Carl B. Wolf 1933-11-8 2008 Orange Trabuco Canyon on south wall opposite the Trabuco Truck Trail, Santa Ana Mts. 914 Comment
  IRVC20647  Arbutus menziesii 1971-4-19 Orange Upper Trabuco Canyon. T.V. St. John Santa Ana Mountains Comment
Read comments
Jan 4 2010
  UC527329  Arbutus menziesii Carl B. Wolf 1933-11-8 Orange Trabuco Canyon on s wall opposite Trabuco Truck Trail; Santa Ana Mountains, Trabuco Canyon 914 Comment
  SD255137  Arbutus menziesii R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49826 Orange Santa Ana Mountains: Trabuco Canyon. Comment
  SEINET10449344  Arctostaphylos catalinae James S. Miller 2001-12-15 Miller 10652 Orange Rancho Santa Ana Botanic Garden, Santa Ana, CA. Comment
  RSA629334  Arctostaphylos glandulosa Jon E. Keeley 1992-6-12 15519 Orange North of El Cariso on road to Los Pinos Pk, 3.8 km north of Hwy 74. 1000 Comment
  CAS-BOT-BC23112  Arctostaphylos glandulosa subsp. glandulosa P. A. Munz; E. K. Balls 1952-8-19 17924 Orange Summit of Ortega hwy, Santa Ana Mts. 822 Comment
  IRVC1252  Arctostaphylos glandulosa subsp. glandulosa A. S. Boughey 1965-3-16 69 Orange Silverado Canyon. Santa Ana Mountains Comment
  IRVC1254  Arctostaphylos glandulosa subsp. glandulosa A. S. Boughey 1965-3-16 69 Orange Silverado Canyon. Santa Ana Mountains Comment
  POM254950  Arctostaphylos glandulosa subsp. glandulosa W. Pequegnat 1940-6-13 s.n. Orange Bear Springs, Santa Ana Mts. Comment
  RSA5328  Arctostaphylos glandulosa subsp. zacaensis B. D. Stark 1933-1-4 4486 Orange Ridge above Claymine Canyon. No. end of Santa Ana Mts. 305 Comment
  UC1120328  Arctostaphylos glandulosa subsp. zacaensis H. A. Jensen 1937-11-4 415 Orange head of Trabuco Canyon Cleveland National Forest, Elsinore Quadrangle Comment
  UC1302404  Arctostaphylos glandulosa subsp. zacaensis Robert F. Thorne and John Olmstead 1963-7-26 32838 Orange in Tin Mine Canyon above Beek's Spring; Cleveland National Forest, Santa Ana Mts., Trabugo District 609 Comment
Read comments
Apr 25 2011
  SEINET10449243  Arctostaphylos glauca James S. Miller 2001-12-15 Miller 10651 Orange Rancho Santa Ana Botanic Garden, Santa Ana, CA. Comment
Read comments
Jan 17 2020
  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
  RSA652146  Argemone munita J. Bruce Smiley 1940-5-7 s.n. Orange Santa Ana Wash. 457 Comment
Read comments
Mar 10 2013
  CAS-BOT-BC27476  Argemone munita subsp. robusta Carl Brandt Wolf 1933-8-24 5403 Orange Santa Ana Mts. Summit of Santiago Pk. 1731 Comment
  RSA539357  Argemone munita subsp. robusta Fred M. Roberts 1988-6-10 4101 Orange Santa Ana Mountains: Modjeska Peak, 0.4 km WSW summit. 1621 Comment
  RSA716656  Argyranthemum frutescens Fred M. Roberts 2005-5-13 6184 Orange San Juan Capistrano; Ortega Ranch Business Center site, between Rancho Viejo Rd. and I-5 freeway adjacent to Horno Creek; 0.6km NE Mission San Juan Capistrano. 54 Comment
  RSA542513  Aristida purpurea var. parishii Fred M. Roberts 1987-3-31 3314 Orange Lomas de Santiago: Lomas [Loma] Ridge, Upper Serrano Canyon, east fork, reservoir, 2.2 kilometers SE Bolero Lookout, UTM 37 28 500m N, 4 41 200m E. 406 Comment
  UCR130496  Aristida purpurea var. parishii R. E. Riefner Jr. 2000-8-3 00- 7012 Orange Santa Ana Mountains, North Ranch Policy Plan Area, east of Main Divide Road and Windy Ridge 535 Comment
  POM201782  Artemisia californica L. M. Booth 1932-7-27 1327 Orange Corona del Mar, Newport Bay. Comment
  RSA5317  Artemisia californica B. D. Stark 1933-1-17 1766 Orange Dana Point. 15 Comment
  RSA719416  Artemisia californica Fred M. Roberts, Lee Ann Caranza 2006-10-25 6453 Orange Dana Point Headlands south of Margarite Drive, 0.6km W Marine Institute and 1km SW Cook Sch. 58 Comment
  SEINET9345935  Artemisia californica A. Sanders, Burger, Jutta 2009-10-21 37191 Orange Peninsular Range; Santa Ann Mtns.: Lomas de Santiago, lower Hangmans Tree Canyon. Oak woodland (Quercus agrifolia) along wash; area burned fall 2007. Scattered shrubs, road edges and steep bluffs. Comment
  UCR247873  Artemisia californica Fred M. Roberts 2012-9-6 7700 Orange SAN JOAQUIN HILLS: Buck Gully, Buck Gully Trail, west end near Poppy Street entrance, 2.1 km WNW Pelican Hill summit. 37 Comment
  CAS-BOT-BC90268  Artemisia douglasiana John Thomas Howell 1927-8-13 2989 Orange Santa Ana River bottom, Santa Ana Canyon 152 Comment
  CHSC35340  Artemisia douglasiana James Henrickson 1972-10-21 8048 Orange Eastern Anaheim, 2 blocks E of Imperial Hwy, along La Palma Ave., just N of Santa Ana River. 60 Comment
  RSA703143  Artemisia douglasiana Fred M. Roberts, Arthur Davenport 2003-9-11 6012 Orange Rancho Mission Viejo; Donna O'neill Land Conservancy, Cristianitos Cyn., 0.79 km N of Sycamore Gate, 0.23 km W of Christianitos Road. 126 Comment
  RSA778  Artemisia douglasiana J. T. Howell 1927-8-13 627 Orange Santa Ana River Bottom 152 Comment
  JEPS36950  Artemisia tridentata subsp. tridentata John Thomas Howell 1927-10-22 3165 Orange Rancho Santa Ana Santa Ana river bottom, Rancho Santa Ana 152 Comment
  RSA0059639  Arthrocnemum subterminale A. C. Sanders, Dan Malueg, K. D. Jones 2000-4-19 23340 Orange Bolsa Chica Lagoon, along dirt roads in oil field, east of Hwy 1, east of Bolsa Chica St. 0 Comment
  UCR193932  Arundo donax A. C. Sanders, Fred M. Roberts 2008-7-16 35875 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Creek wash at and above the confluence of Hangmans Tree Canyon 370 Comment
  IRVC14869  Asclepias eriocarpa Gordon A. Marsh, Karlin G. Marsh 1976-7-8 s.n. Orange 0.1km W Casper's Park in fire break; periphery of live oak woodland. Rancho Mission Viejo Comment
  RSA0104746  Asclepias eriocarpa A. C. Sanders, Fred M. Roberts 2008-6-17 35489 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
  RSA0104747  Asclepias eriocarpa A. C. Sanders, Fred M. Roberts 2008-6-17 35519 Orange Middle section of Weir Canyon, SSE of Walnut Canyon Reservoir. 225 Comment
  IRVC24991  Asclepias fascicularis Fred M. Roberts, R. Fisher 1986-6-18 3014 Orange Irvine; [San Joaquin Hills], east lateral to Shady Canyon, c.a. 2.9km SE French Hill. 82 Comment
  RSA683219  Asparagus asparagoides Scott D. White, Matt Carlton 2003-11-20 9873 Orange Santa Ana Mountain foothills: San Juan Creek in San Juan Capistrano. 37 Comment
  RSA184112  Asparagus asparagoides I. L. Wiggins 1965-6-5 20330 Orange Orange grove on N side of Chapman Ave. near Kraemer Rd. Comment
  RSA701806  Asphodelus fistulosus Fred M. Roberts 2000-6-5 5337 Orange Yorba Linda, along Hidden Hills Dr. near Sunbeam Lane, on ridge above Box Canyon 376 Comment
  IRVC181  Asplenium bulbiferum Janet Morgan 1965-3-25 HS0563 Orange Newport Beach: Beacon Bay. 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
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Feb 26 2013
  PASA1804  Aster exilis Frank W. Peirson 1919-11-8 Orange Aliso Creek at Tie Canyon, San Gabriel Mts. Comment
  RSA232225  Aster subulatus var. ligulatus James Henrickson 1970-10-3 5360 Orange 3 miles NE of Huntington Beach just N of Bolsa Chica Salt Marsh. 0 Comment
  RSA784  Aster subulatus var. ligulatus J. T. Howell 1927-9-24 750 Orange Santa Ana River Bottom, Rancho Santa Ana 152 Comment
  LA204886  Astragalus brauntonii Carl B. Wolf; 1936-6-22 8000 Orange Santa Ana Mountains, N slopes of Sierra Peak, Claymine Canyon Truck Trail to Sierra Peak 457 Comment
  NY621861  Astragalus brauntonii C. B. Wolf 1936-6-22 8000 Orange This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  RSA443829  Astragalus brauntonii Gordon Marsh, K. G. Marsh 1978-5-20 s.n. Orange Coal Canyon, along Coal Creek. Comment
  RSA6139  Astragalus brauntonii B. D. Stark 1933-06 4997 Orange Santa Ana Mountains, north slopes of Sierra Peak. [county unspecified] Comment
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Aug 9 2007
  CAS-BOT-BC182320  Astragalus didymocarpus var. didymocarpus Helen D. Geis 1902-4-1 s.n. Orange Santiago Creek Comment
  LA204927  Astragalus didymocarpus var. didymocarpus C. L. Hogue; 1954-4-10 sn Orange Irvine Ranch behind Corona Del Mar 60 Comment
  UCR191320  Astragalus gambelianus A. C. Sanders, Fred M. Roberts 2008-4-8 34748 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, head of Hicks Canyon, S of Santiago Reservoir 351 Comment
  UCR234139  Astragalus trichopodus Dick Newell, Don Millar, Judy Booth 2012-4-25 246 Orange South Coastal Plain, Muth Interpretive Center, upper Newport Bay, Newport Beach 9 Comment
  HSC14575  Astragalus trichopodus var. lonchus S. M. Clapp 1966-4-9 38 Orange Just S of Brea Canyon Rd. and 1 mi. N of Brea. Union Oil Proper. 61 Comment
  RSA264438  Astragalus trichopodus var. lonchus C. W. Tilforth 1976-11-12 1239 Orange Slopes of Rancho Santa Ana above Horseshoe Bend of the Santa Ana River, SE of Yorba Linda. 152 Comment
  UC1980248  Atriplex R. E. Riefner Jr. 2006-10-2 06 -466 Orange City of Lake Forest, N of Portola Pkwy. and immediately W of SR-241 freeway at avocado orchard; vicinity of Tomato Spring. Comment
  IRVC29877  Atriplex Mark A. Elvin, D. Kelch 2006-12-9 5306 Orange Newport Backbay; Big Canyon, lower end. Southern Coastal 3 Comment
  RSA5821  Atriplex C. B. Wolf 1932-6-28 s.n. Orange 25 ft. west and 600 ft. north of SE corner of SE 1/4 sect 29. 9 Comment
  RSA737849  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
  UC1980254  Atriplex amnicola R. E. Riefner Jr. 2006-5-7 06 -180 Orange North end of City of San Clemente, along I-5 Freeway, N side, immediately S of Camino de Estrella exit ramp. 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
  RSA743667  Atriplex amnicola R. E. Riefner 2008-5-25 8 -111 Orange City of San Clemente, vicinity of Camino de Los Mares and Calle Nuevo. 45 Comment
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Aug 26 2013
  UCR158035  Atriplex argentea Adrian Wolf 1998-7-1 405 Orange South Coast, Peters Canyon Channel, east of channel near Harvard Ballfield, between Harvard Ave. & creek, south of Warner Ave. to Barranca 15 Comment
  RSA716777  Atriplex californica Fred M. Roberts, Chris M. Barnhill 2004-7-10 6072 Orange Laguna Beach: Crescent Bay, at base of Twin Points. 3 Comment
  UCR101394  Atriplex californica A. C. Sanders, P. J. MacKay, Tim Thomas, O. F. Clarke 1998-10-17 22267 Orange Coastal flats, Bolsa Chica, near Bolsa Bay, south of Warner Ave., east of the Pacific Coast Highway .3 Comment
  UCR146227  Atriplex californica Valerie Soza, Et al. 2001-4-4 1109 Orange South Coast, Seal Beach National Wildlife Refuge, Seal Beach U. S. Naval Weapons Station, across access road from Nature Center (Bldg 226) 3 Comment
  RSA542649  Atriplex californica Fred M. Roberts 1988-10-12 4159 Orange San Clemente State Park: c.a. 0.2 km SE end of Ave. California along Santa Fe RR. 3 Comment
  POM201812  Atriplex canescens L. M. Booth 1932-7-23 1301 Orange Corona del Mar, Newport Beach Comment
  POM21631  Atriplex canescens F. W. Peirson 1934-2-10 4528 Orange Corona Del Mar Comment
  RSA452452  Atriplex canescens Albert J. Perkins 1909-7-4 s.n. Orange Laguna Beach. Comment
  RSA65358  Atriplex canescens F. W. Peirson 1924-8-29 4528 Orange Corona Del Mar Comment
  CAS-BOT-BC170193  Atriplex canescens subsp. canescens Joseph Andorfer Ewan 1932-7-28 7707 Orange Seaward bluffs at Corona del Mar. Comment
  IRVC24454  Atriplex canescens subsp. canescens Fred M. Roberts 1985-11-20 2560 Orange Newport Back Bay, near Camp Survey Mark, Newport Beach 2 Comment
  RSA0028779  Atriplex glauca R. E. Riefner Jr. 2002-5-4 20 -87 Orange City of Dana Point, beach W of Pacific Coast Hwy. near mouth of Salt Creek. 15 Comment
  RSA737241  Atriplex glauca R. E. Riefner 2006-3-19 06 /01/1952 Orange City of Newport Beach, near Avocado Ave, and San Nicolas Dr. W of McAthur Blvd. 77 Comment
  RSA743660  Atriplex glauca R. E. Riefner 2007-1-22 7 -20 Orange City of San Juan Capistrano, San Juan Creek at Hwy. 74. 56 Comment
  RSA741477  Atriplex halimus R. E. Riefner 2008-12-23 8 -375 Orange City of Laguna Beach, S Crescent Bay, Cliff Dr. at Circle Way. 5 Comment
  UCR24117  Atriplex lentiformis subsp. breweri John C. Roos 1937-8-31 2556 Orange South Coast, San Clemente Comment
  CLARK-A1528-978  Atriplex lentiformis subsp. breweri Patricia A. Andrews 1998-5-20 Orange Capistrano Bay Beach 9 Comment
  RSA443841  Atriplex lentiformis subsp. breweri J. W. Johnson 1978-11-8 s.n. Orange Irvine: Coyote Canyon Road & MacArthur Blvd. intersection. Comment
  RSA743476  Atriplex lentiformis subsp. lentiformis Fred M. Roberts, Carol A. Roberts 2008-9-28 7112 Orange Dana Point: Dana Point Headlands, CNLM Preserve near NE Gate, 0.5km W Marine Institute (Dana Point Harbor). 75 Comment
  RSA65427  Atriplex leucophylla F. W. Peirson 1923-3-25 s.n. Orange Aliso Creek, near Laguna Beach. Comment
  POM656  Atriplex pacifica D. L. Crawford 1916-5-5 s.n. Orange Laguna Beach. Comment
  UCR151119  Atriplex polycarpa Scott D. White 1998-10-15 7185 Orange Santa Ana Mtns foothills, Yorba Linda, c. 0.5 mi south of Telegraph Canyon between Ohio St. and Fairmont 305 Comment
  RSA689538  Atriplex prostrata R. E. Riefner 2003-8-31 3 -340 Orange Costa Mesa, Talbert Regional Park, Discovery Walk Road and Balboa Avenue. 12 Comment
  HSC34526  Atriplex semibaccata J. D. Ackerman, A. M. Montalvo 1974-3-28 167 Orange S Laguna, by S Laguna Sanitary Station Comment
  HSC4356  Atriplex semibaccata J. W. Johnson 1961-3-30 Orange Newport Beach, at base of S cliff along N side of Big Canyon. Comment
  JEPS59665  Atriplex semibaccata L. M. Booth 1932-5-12 1002 Orange Newport Bay Comment
  UCSC000222  Atriplex semibaccata I. J. Condit 2008-7-20 s.n. Orange Los Alamitos Comment
  POM664  Atriplex semibaccata D. L. Crawford 1915-09 s.n. Orange Huntington Beach. Comment
  RSA716661  Atriplex suberecta Fred M. Roberts, Amber Oneal 2004-8-18 6094 Orange San Juan Capistrno: Ortega Ranch Business Center site, between Rancho Viejo Rd. and I-5 freeway adjacent to Horno Creek; 0.6km NE Mission San Juan Capistrano. 54 Comment
  UCR143653  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
  UC1543075  Atriplex watsonii Donald G. Nelson 1935-6-27 323 Orange s mouth of Newport Bay (on bluffs facing ocean beaches s of Corona del Mar); s of mouth Newport Bay, s of Corona del Mar Comment
  UC1929653  Atriplex watsonii Valerie Soza, Kevin Clark, LeRoy Gross, Will Miller, Fred Roberts, Gary Wallace 2001-4-4 1100 Orange Seal Beach National Wildlife Refuge; Seal Beach U. S. Naval Weapons Station, across access road from Nature Center (Bldg 226). 3 Comment
  RSA453974  Atriplex watsonii Anstruther Davidson 1902-09 1767 Orange Newport Beach. Comment
  UCD56212  Avena barbata Beecher Crampton 1963-5-7 6792 Orange Ca. 11 miles NE of San Juan Capistrano. State Hwy. 74. Lower San Juan Canyon. Santa Ana Mountains. Comment
  RSA697311  Avena fatua Keith E. Hoffmaster 1936-4-14 s.n. Orange Santa Ana Comment
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Nov 20 2011
  RSA696691  Avena sativa Keith E. Hoffmaster 1927-5-5 s.n. Orange Santa Ana. Comment
  RSA17461  Azolla filiculoides Carl B. Wolf 1936-9-21 8273 Orange Rancho Santa Ana, Santa Ana Canyon 121 Comment
  IRVC25196  Baccharis emoryi Fred M. Roberts, Robert Fisher 1986-10-28 3179 Orange Main Divide Truck Trail Extension, 2.3km E Los Pinos Peak, in seep at base of south-facing road cut. Santa Ana Mountains 1030 Comment
  RSA768505  Baccharis emoryi Justin M. Wood 2009-12-1 1389 Orange Santa Ana River: marsh just upstream of Pacific Coast Highway. 0 Comment
  CAS-BOT-BC99444  Baccharis pilularis Carl B. Wolf 1934-12-26 6262 Orange so. end of town of San Clemente 15 Comment
  RSA549989  Baccharis pilularis Scott D. White 1992-9-23 84 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
  RSA743499  Baccharis pilularis Fred M. Roberts 2008-9-10 7098 Orange Dana Point: Dana Point Headlands, CNLM Preserve, north of Marguerita Drive, 0.5 km WNW Marine Institute, Dana Point Harbor. 75 Comment
  RSA793263  Baccharis pilularis R. F. Thorne 1984-1 s.n. Orange Newport Back Bay. Comment
  RSA184139  Baccharis salicifolia I. L. Wiggins 1966-2-4 20418 Orange Watercourse near mouth of Trabuco Canyon.Waterfront St. near Mission Rock Terminal, San Francisco Comment
  RSA712941  Baccharis salicifolia Fred M. Roberts 2005-10-3 6306 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
  UCR186689  Baccharis salicifolia T. B. Salvato, Katie Kurtz, Mitch Provance 2006-10-15 1911 Orange South Coast, Irvine, San Diego Creek flood control channel, between Campus Drive and Michelson Drive 6 Comment
  UCR192116  Baccharis salicifolia A. C. Sanders, Fred M. Roberts, Amber O'Neal, D. E. Bramlet 2008-5-9 35295 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, c. 1.1 mi. E of Walnut Cyn Reservoir 277 Comment
  CAS-BOT-BC106668  Baccharis salicina Helen D. Geis 1902-1-1 548 Orange Unspecified Comment
  JEPS21280  Baccharis salicina John Thomas Howell 1927-10-22 3166 Orange Rancho Santa Ana Santa Ana River bottom 152 Comment
  SD247503  Bacopa monnieri R. E. Riefner Jr. 2012-7-1 12 295 Orange City of Mission Viejo, Oso Creek, ca 1.3 mi N of Paseo De Colinas Ave on Camino Capistrano Ave. 88 Comment
  CAS-BOT-BC334499  Bahiopsis laciniata R. E. Riefner, Jr. 2013-4-5 13 -56 Orange Anaheim Hills, vicinity Hidden Canyon Rd. at Avenue De Santiago 305 Comment
  CDA13500  Basella alba L. Pope 1997-11-2 s.n. Orange Homewood Ave., Buena Park. 0 Comment
  RSA689547  Bassia hyssopifolia R. E. Riefner 2003-8-17 3 -332 Orange Costa Mesa, Talbert Regional Park, Discovery Walk Road and Balboa Avenue. 12 Comment
  CHSC26476  Batis maritima James Henrickson 1970-7-25 5034 b Orange 3 1/2 miles NW of Huntington Beach on sandy margin of Bolsa Bay, 1/4 mile SE of Warner Ave. along Pacific Coast Hwy. 0 Comment
  LA105231  Batis maritima Barry A. Prigge; 1988-9-11 8302 Orange eastern edge of Newport Beach, ca 0.25 mi. E of Pacific Coast Hwy bridge over Santa Ana River/Greenville-Banning channels, along old Santa Ana River channel near oil wells 0 Comment
  POM122280  Batis maritima Marcus E. Jones 1924-8-26 s.n. Orange Balboa Comment
  POM14338  Batis maritima J. B. Feudge 1922-8-13 s.n. Orange Newport Beach Comment
  RSA689540  Batis maritima R. E. Riefner 2003-8-17 3 -336 Orange Costa Mesa, Talbert Regional Park, Discovery Walk Road and Balboa Avenue. 12 Comment
  SFV20021  Batis maritima A. Dittmer, S. Dark 2004-10-3 76 Orange Bolsa Chica wetlands. South side of public parking lot off Highway 1. Comment
  UCR130498  Batis maritima R. E. Riefner Jr. 2003-8-17 03- 336 Orange South Coast, Costa Mesa, salt marsh along Santa Ana River, west of Talbert Regional Park 11 Comment
  RSA650814  Bebbia juncea Daniel Truong 1991-5-13 30 Orange Irvine Regional Park, left field adjacent to main entrance, within 1/4 mile radius of ''closed area''. Comment
  RSA92401  Bebbia juncea F. W. Peirson 1923-9-8 4043 Orange Trabucco Canyon. 427 Comment
  CAS-BOT-BC106425  Bebbia juncea var. aspera C. B. Wolf 1931-7-25 2295 Orange North of Pear Orchard, Rancho Santa ana, Santa Ana Can. 121 Comment
  IRVC22020  Bebbia juncea var. aspera D. Bramlet 1985-7-2 AH-1 Orange Anaheim Hills Golf Course, on knoll near #3 green, Anaheim 183 Comment
  UC527451  Bebbia juncea var. aspera C. B. Wolf 1931-7-25 Orange n of Pear Orchard (Rancho Santa Ana, Santa Ana Canyon); Rancho Santa Ana, Santa Ana Canyon 121 Comment
  LA204060  Berberis pinnata subsp. pinnata W. E. Pequegnat; 1937-9-3 77 Orange Santa Ana Mountains, Santiago Peak 1066 Comment
  IRVC24999  Beta vulgaris Fred M. Roberts, H. Camp & B. Bretz 1986-6-20 3021 Orange San Joaquin Freshwater Marsh, near Campus Dr., 1.7km NNW UC Irvine campus center, Irvine 2 Comment
  JEPS30712  Bidens laevis Peter H. Raven 1961-10-15 16850 Orange Anaheim Street, Anaheim, Santa Ana River Bed Santa Ana River Bed, Anaheim, Anaheim Street 60 Comment
  RSA683221  Bidens laevis Scott D. White, Matt Carlton 2003-11-20 9876 Orange Santa Ana Mountain foothills: San Juan Creek in San Juan Capistrano. 37 Comment
  RSA696876  Bidens laevis J. Russell Bruff 1930-10 s.n. Orange Santa Ana River, 1st Street. Comment
  IRVC19421  Bidens pilosa R. L. Allen 1983-2-12 A630 Orange Fullerton; Hillcrest Park, slope bordering E Valley View Drive. Southern Coastal Comment
  CLARK-A1528-3075  Bloomeria crocea Michelle Loef 1973-5-25 250573-4 Orange Brea 91 Comment
  RSA698737  Bloomeria crocea L. C. Hall 1934-4-1 s.n. Orange Panerama Heights Comment
  RSA704042  Bloomeria crocea Ralph Walker s.n. Orange Local hills Comment
  RSA0012750  Bloomeria crocea var. crocea Fred M. Roberts 2012-5-10 7575 Orange San Joaquin Hills: Buck Gully, south tributary, north slope Pelican Hill, just north of Pelican Hills Drive, 0.7 km N Pelican Hill summit. 154 Comment
  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
  SBBG18501  Bloomeria crocea var. crocea E. B. Carlton 1962-6-24 9 Orange rd from Hidden Valley Rd to Temple Hills Rd, Laguna Beach 182 Comment
  CAS-BOT-BC31011  Bolboschoenus maritimus John Thomas Howell 1927-6-30 2618 Orange Alkaline coastal plain 7 miles E of Long Beach. 15 Comment
  RSA682595  Bothriochloa barbinodis Scott D. White, Amanda Duchardt 2003-3-27 8859 Orange Canyon bottom and west facing slopes above Canada Gobernadora. 91 Comment
  POM294343  Bowlesia incana Lyman Benson 1947-4-27 12341 Orange Carbon Canyon. Chino-Puente Hills; Pacific Slope Drainage Area. 244 Comment
  CAS-BOT-BC174031  Brachypodium distachyon Scott D. White; Jennifer H. Jones 2005-4-26 10973 Orange Laguna Beach area: City of Laguna Beach. 549 Nyes Place. Undeveloped lot within a residential neighborhood 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
  IRVC1027  Brassica geniculata I. L. Wiggins 1965-10-24 20281 Orange [East Coyote Hills] along Skyline Dr. near Raymond St. Fullerton Comment
  UCR228806  Brassica geniculata Dick Newell, Don Millar 2011-5-10 149 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
  IRVC1047  Brassica nigra S. Gilbert 1965-4-13 Orange 2472 Elden. Costa Mesa Comment
  IRVC20785  Brassica nigra Fred M. Roberts, S. L. Fritzke 1982-4-2 468a,b,c Orange hills, 3.5km ESE Aliso Peak; 3.2km ESE Alicia Fire Station, N of Del Avion, Laguna Niguel 100 Comment
  IRVC20787  Brassica nigra Fred M. Roberts, S. L. Fritzke 1982-4-2 468a,b,c Orange hills, 3.5km ESE Aliso Peak; 3.2km ESE Alicia Fire Station, N of Del Avion, Laguna Niguel 100 Comment
  UCR191363  Brassica nigra A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34626 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
  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
  RSA0084260  Brassica nigra Caralisa Breidenbaugh, Mark Breidenbaugh 1992-1-5 19 Orange 1/2 mile south of Chino Hills State Park Boundary. 198 Comment
  CAS-BOT-BC36768  Brassica rapa Ira L. Wiggins 1965-12-5 20365 Orange 2 miles east of Atwood on north side of Orangethorpe Avenue. Comment
  POM202597  Brassica rapa L. M. Booth 1932-7-21 s.n. Orange Anaheim Creek Comment
  UCD114852  Brassica rapa Ira L. Wiggins 1966-2-12 20427 Orange N side of La Palma Ave. near Harbor Blvd. Anaheim. Comment
  UCSB42715  Brassica rapa Fall, G. 1970-2-15 Orange Behind Othrays Hall I; 651 N. Titan Dr.; S of Hutwood Ave. and E of State College Blvd. Comment
  CSUSB529  Brassica rapa subsp. sylvestris Shirley Hill 1963-3-23 630323 4 Orange Field in back of Enco Station on Carolina st. Placentia. Abandoned field with other weeds Comment
  RSA0069232  Brassica tournefortii Fred M. Roberts, Megan Lulow 2009-3-18 7137 Orange Santa Ana Mtns. Region: Lomas de Santiago: Loma Ridge at Calochortus Ridge, near East Loma Ridge Road, 2.6 km NW Bee Peak, &3.4 km NE of Rattlesnake Reservoir Dam. 375 Comment
  UCR209360  Brassica tournefortii Fred M. Roberts, D. E. Bramlet 2008-4-1 6839 Orange Lomas de Santiago, Loma Ridge, at Calochortus Ridge near East Lomas Ridge Road, 2.6 km northwest of Bee Peak and 3.4 km northeast of Rattlesnake Reservoir Dam, Irvine Ranch Conservancy 375 Comment
  UCSB48079  Brickellia californica Roberts, Fred 1981-11-15 Orange Santa Ana Mtns.; San Juan Canyon, Hwy. 74, across road from entrance to Lower San Juan Picnic Ground 436 Comment
  RSA703847  Bromus carinatus D. E. Bramlet, Fred M. Roberts 2003-3-27 3356 Orange Donna O'Neill Reserve. NE corner of the reserve 274m west of Cristianitos Rd. and 1.46km north of the E-W access road. (San Clemente: T8S R7W S12, NW of the SE; 11S -04 47 737E, 37 05 416N). 152 Comment
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Aug 30 2007
  CAS-BOT-BC149325  Bromus carinatus var. carinatus Le Roy Abrams 1903-4-18 3271 Orange Trabuco arroyo near Capistrano. Comment
  RSA542560  Bromus carinatus var. carinatus Fred M. Roberts, Karlin G. Marsh 1987-5-14 3442 Orange NSanta Ana Moutains: Upper Trabuco Canyon, Trabuco Canyon Trail , 1.3 km NNE Los Pinos Peak 1192 Comment
  RSA159490  Bromus catharticus John H. Thomas, I. L. Wiggins 1962-6-27 308 Orange Santa Ana. Comment
  CAS-BOT-BC156006  Bromus diandrus P. Munz; L. Street; G. Williams 1919-5-3 2644 Orange Santa Ana River Canyon. Comment
  RSA0035210  Bromus diandrus Sandy Gray 1981-04 2 Orange Hwy. 142, Carbon Canyon Rd. 3 miles west of Cavida, Chino. Comment
  RSA598967  Bromus hordeaceus Scott D. White 1997-3-28 4845 Orange Santa Ana Mountains: above Modjeska Canyon, proposed water tank site. 427 Comment
  UC1131079  Bromus hordeaceus A. Lewis Apr 1934 387 Orange 1/2 mi e of Borrego Canyon 457 Comment
  POM202590  Bromus hordeaceus L. M. Booth 1932-5-12 1023 Orange Newport Bay. Comment
  RSA696603  Bromus hordeaceus Rankin s.n. Orange Santa Ana. 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
  UCR166791  Bromus inermis subsp. inermis R. E. Riefner Jr. 2005-10-1 05- 702 Orange City of Costa Mesa, South Coast Drive at Susan Road 16 Comment
  HSC9305  Bromus madritensis subsp. rubens C. L. Hitchcock, C. V. Muhlick 1964-3-17 23060 Orange 8 mi. E of Yorba Linda, Santa Ana Canyon. Comment
  CAS-BOT-BC161819  Bromus rubens Ira L. Wiggins 1966-2-18 20449 Orange Near end of County road, 0.5 mile west of entrance to Rancho Santa Ana. Comment
  UCD59518  Bromus rubens Ira L. Wiggins 1966-3-16 20526 Orange Near entrance to Firestone Boy Scouts Reservation. Comment
  UCR217282  Bromus rubens Mark A. Elvin 2003-3-30 2392 Orange South Coast, north side of UC Irvine Preserve, between core of UCI campus (E Peltason Dr.) and Hwy 73 69 Comment
  CLARK-A1528-972  Bromus willdenowii Patricia A. Andrews 1975-6-26 5918 Orange Capistrano Bay Beach 9 Comment
  SEINET5642639  Cakile maritima Shelby J. Wood 2013-3-9 8 Orange Sunset Beach close to Bolsa Chica.; 0 Comment
  RSA681015  Calandrinia ciliata Fred M. Roberts, David E. Bramlet 2003-3-13 5578 Orange Donna O Neill Land Conservancy: Ridge west of Christianitos Canyon, 1.6 km NW Sycamore Gate. 197 Comment
  CAS-BOT-BC438321  Calandrinia ciliata Ira L. Wiggins 1966-3-5 20513 Orange About 1/2 mi. W. of El Toro Post Office, along Highway S-18. Comment
  RSA696973  Calendula officinalis Ruth Greenwald 1938-05 s.n. Orange Santa Ana Comment
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Jun 10 2012
  RSA713907  Callistemon citrinus R. E. Riefner Jr. 2005-11-23 5 -773 Orange City of Newport Beach, Upper Newport Bay, E of Jamboree Rd and S of Bayview Way at Bonita Creek channel. 6 Comment
  UCR210367  Callistemon viminalis T. B. Salvato, Billy Deane 2006-10-16 1942 Orange South Coast, Irvine, San Diego Creek flood control channel, between Michelson Drive and the 405 FWY 12 Comment
  RSA723962  Callistemon viminalis R. E. Riefner Jr. 2006-11-12 06 -559 Orange City of Newport Beach, Irvine Coast Trail at San Diego Creek, near SR-73 crossing, S of Jamboree Rd. 3 Comment
  RSA724030  Callistemon viminalis R. E. Riefner Jr. 2006-11-14 6 -674 Orange City of Irvine, San Diego Creek; vicinity of Campus Ave. at University Dr. 5 Comment
  CAS-BOT-BC140073  Calochortus E. W. Lathrop 1966-3-23 6098 Orange 4 miles NE of Lake Irvine, Black Star Canyon, Cleveland Nat'l. Forest, Trabuco District Comment
  RSA220977  Calochortus catalinae E. W. Lathrop 1966-3-23 6098 Orange 4 miles northeast of Lake Irvine, Black Star Canyon, Cleveland National Forest, Trabuco District. Comment
  RSA734648  Calochortus catalinae A. C. Sanders, Fred M. Roberts 2008-3-25 34568 Orange Peninsular Range; Santa Ana Mtns.: Saddle on ridge near head of Weir Canyon, 5.3 miles ENE of Villa Park, 3.1 mi. N of (Santiago Reservoir) Irvine Lake. 405 Comment
  RSA749314  Calochortus catalinae Fred M. Roberts 2008-3-25 6791 Orange Loma Ridge: Upper Hicks Cyn. near Haul Road, c.a. 4.4 km by road from Portola Pkwy. and 3.2 km ENE Rattlesnake Cyn. Reservoir. 269 Comment
  RSA773558  Calochortus catalinae Fred M. Roberts 2008-6-3 7026 Orange Lomas de Santiago: Loma Ridge, East Fork Rattlesnake Canyon, ca. 2.3 km ENE of Rattlesnake Reservoir spillway and 2.2 km ENE Bee Peak 217 Comment
  UCR192502  Calochortus catalinae A. C. Sanders, Fred M. Roberts 2008-3-25 34549 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  CAS-BOT-BC483375  Calochortus invenustus L. R. Abrams 1901-6-15 1848 Orange Santiago Peak Comment
  JEPS61716  Calochortus splendens Alice King May 1908 Orange Santa Ana Mts. Comment
  SEINET4063239  Calochortus splendens G. Sphon 1959-1 325 Orange Between Upper and Lower San Juan Camps, Cleveland National Forest. Comment
  CAS-BOT-BC492696  Calochortus splendens D. L. Crawford May 10 s.n. Orange Laguna Mts. 304 Comment
  CAS-BOT-BC492700  Calochortus splendens Gale Sphon 1959-5-2 325 Orange Between Upper and Lower San Juan Camps, Cleveland National Forest Comment
  SEINET5259809  Calochortus weedii Unknown 1995-7-3 29 Orange from Hugh McDonald's living collection; growing in Berkeley, CA Comment
  RSA690980  Calochortus weedii var. intermedius Scott D. White, Michael Honer 2003-5-29 9429 Orange Santa Ana Mtn foothills: Rancho Mission Viejo. Hills above Canada Gobernadora, west side of canyon, ca. 1 air mile north of Ortega hwy. 91 Comment
  RSA749645  Calochortus weedii var. intermedius D. E. Bramlet 2008-6-5 4290 Orange Santa Ana Mtns foothills: Tributary to Weir Cyn., 731 m N of the SCE Transmission Line & 229m west of Weir Canyon Road. 257 Comment
  RSA753420  Calochortus weedii var. intermedius D. E. Bramlet 2008-5-16 4274 Orange Agua Chinon Wash. Site is 3m N of the access road and 1.83km NE of Hwy 241 269 Comment
  UCR222644  Calochortus weedii var. intermedius D. E. Bramlet 2008-5-9 4263 Orange Peninsular Range; Santa Ana Mtns. Foothills, ridgeline between the upper two tributaries of Wier Canyon, 1.2 km east of S Serrano Ave. and 1.3 km west of Gypsum Cyn 330 Comment
  UCR160851  Calochortus weedii var. weedii Mark S. Brunell 1991-7-4 s.n. Orange Peninsular Range; Santa Ana Mtns., Hwy 74 c. 3 miles east of San Juan Hot Springs 427 Comment
  POM50902  Calycadenia tenella Helen D. Geis 1902-1 535 Orange Santiago Canyon. Comment
  RSA649679  Calycadenia tenella R. E. Riefner 2000-5-6 20 -444 Orange NCCP North Ranch Policy Plan Area: NE property; along powerline on National Forest boundary. 582 Comment
  UCR158028  Calycadenia tenella Adrian Wolf 1998-5-15 291 Orange South Coast, Dana Point Headlands, north of Scenic Dr. 67 Comment
  UCR193067  Calycadenia tenella A. C. Sanders, T. B. Salvato 2008-5-13 35338 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Canyon at mouth of Hangman Tree Canyon and lower Hangman Tree Cyn, c. 1/2 mile below Modjeska Canyon confluence 366 Comment
  RSA255489  Calycadenia tenella Gerald D. Carr 1971-7-14 585 Orange 2.5 mi NE of San Juan Capistrano on Hwy 74 69 Comment
  POM65980  Calystegia macrostegia subsp. arida L. R. Abrams 1901-6-14 1800 Orange Trabuco Canyon Comment
  UC1794974  Calystegia macrostegia subsp. arida R. K. Brummitt 1998-5-23 19994 Orange 17 km NE of San Juan Capistrano on Rte. 74 200 Comment
  IRVC9144  Calystegia macrostegia subsp. cyclostegia B. T. Gittins 1966-4-12 1203 Orange bluff above cove. Dana Point Headlands Comment
  UCR4053  Calystegia macrostegia subsp. cyclostegia Carole Sims 1965-3-28 s.n. Orange South Coastal Plains, 100 yards from Pacific Coast Highway on Salt Creek Road toward the beach. Between South Laguna and Dana Point 18 Comment
  CAS-BOT-BC221305  Calystegia macrostegia subsp. intermedia C. B. Wolf 1932-3-6 1865 Orange 2 miles from Orange County Park on road to Anaheim 152 Comment
  RSA647894  Calystegia macrostegia subsp. intermedia Mark Breidenbaugh, Caralisa Breidenbaugh 1992-5-15 23 Orange 1/2 mile south of Chino Hills State Park. By a seasonal tributary to the Santa Ana River. 167 Comment
  RSA683073  Calystegia macrostegia subsp. intermedia Fred M. Roberts 2003-3-13 5591 Orange Donna O'Neill Land Conservancy: Ridge west of Christianitos Canyon, 1,320m NW Sycamore Gate and 880m W Cristianitos Rd. 179 Comment
  RSA638958  Calystegia occidentalis subsp. fulcrata Valerie L. Soza, LeRoy Gross 1999-6-7 488 Orange West side of Modjeska Peak, along Main Divide Road. 1448 Comment
  POM201717  Calystegia sepium subsp. limnophila L. M. Booth 1932-8-5 1359 Orange East of Huntington Beach. Comment
  IRVC994  Calystegia soldanella E. Anderson 1965-4-25 Orange Huntington Beach State Park Comment
  UCR16118  Calystegia soldanella N. J. Moriarty 1973-5-20 730520- 4 Orange Huntington Beach, 0.5 mi. north of Brookhurst Street on the W side of Pacific Coast Hwy (=Hwy 1) Comment
  UCR118679  Camissonia A. C. Sanders, D. Malueg, K. D. Jones 2000-4-19 23341 Orange Pacific Coast, Bolsa Chica Lagoon, along dirt roads in oil field, east of Hwy 1, east of Bolsa Chica St. 11 Comment
  POM201887  Camissonia bistorta L. M. Booth 1932-5-12 1034 Orange Newport Bay Comment
  RSA159495  Camissonia bistorta Thomas Craig 1928-3-31 778 Orange Santa Ana Mountains, Silverado Canyon. Comment
  RSA165280  Camissonia bistorta Mark Parratt 1962-4-11 138 Orange Corona del Mar beach head. 5 Comment
  RSA542488  Camissonia bistorta Fred M. Roberts, G. A., K. G. Marsh 1988-4-26 3937 Orange San Joaquin Hills: Pelican Hill, 0.5km SE summit. 165 Comment
  RSA72203  Camissonia bistorta F. W. Peirson 1923-3-26 3411 Orange Canada Salada Creek, field about 1/4 mile from beach Comment
  RSA731977  Camissonia californica A. C. Sanders 2008-4-1 34658 Orange Peninsular Range: Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 250 Comment
  CSUSB191  Camissonia cheiranthifolia subsp. suffruticosa Steve Kulju 1974-5-27 Orange Seal Beach; One mile southeast of the city of Seal Beach on State Highway 1. 4 Comment
  IRVC29758  Camissonia cheiranthifolia subsp. suffruticosa Barry S. Nerhus, Mark A. Elvin 2006-11-4 11 Orange Huntington Beach, Bolsa Chica Wetlands, SW portion of Reserve beside Pacific Coast Highway. Southern Coastal 0 Comment
  RSA454059  Camissonia cheiranthifolia subsp. suffruticosa Josephine Derigo 1941-7-5 s.n. Orange Laguna Beach. Comment
  HSC94213  Camissonia hirtella D. Atwood 1993-3-28 17714 Orange Bolsa Chica Ecological Reserve, California Dept. of Fish and Game. 0 Comment
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Jul 14 2012
  RSA539379  Camissonia hirtella Fred M. Roberts, C. A. Roberts 1988-6-2 4036 Orange Santa Ana Mountains: Silverado Canyon. Maple Springs Truck trail. 4.3 km above gate, 1.0 km WSW Bald Peak. 817 Comment
  UCR191424  Camissonia hirtella A. C. Sanders, Fred M. Roberts 2008-4-8 34775 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, SSE of Santiago Reservoir on Harding Truck Trail at Dripping Springs Loop, above Limestone Canyon 495 Comment
  UC635390  Camissoniopsis bistorta H. L. Mason 1926-4-25 2928 Orange 5 mi s Laguna Comment
  SDSU3326  Camissoniopsis bistorta Wedberg 1958-3-29 178 Orange North on small dirt road to No Trespassing sign, 100' north of Hwy 74, 5.6 mi north-east of San Juan Capistrano. Comment
  CAS-BOT-BC160451  Camissoniopsis cheiranthifolia subsp. suffruticosa William M. Klein 1960-6-14 1457 Orange San Clemente State Park 7 Comment
  UCSB48117  Camissoniopsis cheiranthifolia subsp. suffruticosa Fritzke, Sue; Roberts, Fred 1982-4-3 Orange Dana Point Headlands: north of Dana Strand Road, 0.5km W Dana Point Harbor; 0.8 km SSW Richard Henry Dana School 80 Comment
  CAS-BOT-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
  IRVC22958  Cannabis sativa Karlin G. Marsh 1986-10-25 Orange [Santa Ana Canyon], Featherly Park; lawn weed. Yorba Linda 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
  CAS-BOT-BC37592  Cardamine californica C. B. Wolf 1931-1-30 1826 Orange Santa Ana Mountains. Claymine Canyon. 304 Comment
  CAS-BOT-BC37593  Cardamine californica C. B. Wolf 1931-1-30 1826 Orange Santa Ana Mountains. Claymine Canyon. 304 Comment
  CSUSB653  Cardamine californica R. Cooper 1968-2-11 S. N. Orange San Joaquin Hills, near Laguna Beach Comment
  POM6389  Cardamine californica var. integrifolia P. A. Munz, L. T. Street, Williams 1919-5-3 2637 Orange Santa Ana River Canyon. Comment
  POM8092  Cardamine californica var. integrifolia P. A. Munz, R. D. Harwood 1920-4-24 3740 Orange Santa Ana Mountains, Sierra [Freemont] Canyon 366 Comment
  RSA2106  Cardamine californica var. integrifolia C. B. Wolf 1931-1-30 1826 Orange Claymine Canyon, Santa Ana Mts. 305 Comment
  UCSB48057  Cardionema ramosissimum 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
  POM293161  Cardionema ramosissimum Lyman Benson 1946-4-27 s.n. Orange Corona Del Mar; Drainage area: Pacific Ocean. 15 Comment
  POM436  Cardionema ramosissimum Daniel J. Crawford s.n. Orange Laguuna Beach region. Comment
  UCR79247  Carduus pycnocephalus Steve Boyd, T. Ross 1992-5-19 7427 Orange Santa Ana Mtns., San Mateo Wilderness Area. Lucas Canyon Trail. 412 Comment
  CAS-BOT-BC17635  Carex alma Helen D. Geis 1902-1-1 503 Orange Near Santa Ana. Comment
  UCR174023  Carex barbarae A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33009 Orange Peninsular Range; Santa Ana Mtns., San Juan Canyon, from Lower San Juan Picnic Area to c. 1 mile downstream, parallel to Hwy 74 and near Riverside Co. line 396 Comment
  CAS-BOT-BC118489  Carex praegracilis Helen D. Geis 1902-4-1 504 Orange Unspecified Comment
  CAS-BOT-BC118491  Carex praegracilis Helen D. Geis 1902-4-1 s.n. Orange Unspecified Comment
  CAS-BOT-BC118497  Carex praegracilis Helen D. Geis 1902-1-1 s.n. Orange Near Santa Ana Comment
  CAS-BOT-BC118502  Carex praegracilis Helen D. Geis 1902-4-1 505 Orange Santa Ana Comment
  RSA581445  Carex spissa Fred M. Roberts, Gordon Marsh 1989-5-12 4365 Orange Santa Ana Mountains: Santiago Canyon, Flemming Regional Park, just E of Modjeska at end of paved road, ca. 3.0 kilometers WSW Laurel Springs. 436 Comment
  IRVC26693  Carex spissa Mark A. Elvin 2004-4-4 3230 Orange UCI Arboretum Southern Coastal 15 Comment
  SEINET10495945  Carissa macrocarpa David B. Dunn 1971-8-13 Dunn 18121 Orange Cultivated plants vicinity of Laguna Beach, CA. Comment
  RSA602116  Castilleja affinis Scott D. White 1997-5-6 5044 Orange Santa Ana Mountains. Santiago Canyon area: Ridgetop road N and W of Bolero Lookout. 427 Comment
  RSA543970  Castilleja applegatei subsp. martinii Steve D. Boyd, Orlando Mistretta 1991-5-9 3201 Orange Crest of range at Oak Flat, SE of Sierra Peak, just West of Riverside County Line. 793 Comment
  UC511102  Castilleja exserta Lyman Benson 1932-3-26 3191 Orange Dana Point 60 Comment
  UCSB9376  Castilleja exserta subsp. exserta Lloyd, Robert 1959-4-17 Orange Mt. Range Santa Ana; 10 mi S of W Corona; on the Oak Flats Fire Road 792 Comment
  RSA699995  Castilleja foliolosa R. H. McArthur 1934-4-7 s.n. Orange Ladd Canyon. Comment
  POM18127  Castilleja minor subsp. spiralis Philip A. Munz 1923-9-7 7737 Orange Santa Ana Mountains: on trail from Holy Jim Canyon to Santiago Peak 1220 Comment
  RSA448791  Castilleja minor subsp. spiralis F. R. Fosberg 1931-6-21 S- 5139 Orange Silverado Canyon. Santa Anita Mts. Comment
  SD212727  Castilleja minor subsp. spiralis A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33007 Orange Santa Ana Mountains: San Juan Canyon, from Lower San juan Picnic area to circa 1 mile downstream, parallel to Highway 74 and near Riverside County line 366 Comment
  RSA798095  Castilleja stenantha Robert F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49584 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74). Comment
  RSA702801  Caulanthus heterophyllus D. E. Bramlet, Fred M. Roberts 2003-5-1 3429 Orange Donna O Neill Reserve. The site is 412m N of Gato Cyn. and 107m W of Cristianitos Rd. 134 Comment
  RSA0121892  Caulanthus lasiophyllus D. E. Bramlet 2008-3-31 4134 Orange 305m E of Upper Hicks Haul Rd, in Trib to Limestone Cyn., 1km S of Santiago Cyn. Rd. 311 Comment
  SD181362  Ceanothus crassifolius Paul Shirokawa 1998-5-15 37 Orange Cleveland National forset - Trabuco Ranger District, 2.3 miles from Ortega Highway (State Highway 74) on North Main Divide Rd 960 Comment
  SD41968  Ceanothus crassifolius Darley F. Howe 1947-4-29 Orange Santa Ana Mts. Comment
  UCSB31585  Ceanothus crassifolius Proctor, Donald 1962-3-18 Orange Silverado Canyon, Santa Ana Mts, 914 Comment
  SD247715  Ceanothus crassifolius R. F. Thorne, C. W. Tilforth, E. W. Lathrop. 1977-4-27 49698 Orange Northern Santa Ana Mountains: Sierra Peak. Comment
  UC718385  Ceanothus integerrimus P. C. Everett 1935-6-18 7214 Orange Summit of Santiago Pk. Santa Ana Mts. 1731 Comment
  RSA16472  Ceanothus integerrimus var. californicus Percy C. Everett 1935-6-19 7236 Orange Trabuco Canyon, 1mile below W summit of truck trail. 1006 Comment
  RSA21234  Ceanothus leucodermis E. R. Johnson 1937-4-6 8505 Orange Rancho Santa Ana, Santa Ana Canyon south of Ranch Buildings. 122 Comment
  RSA698619  Ceanothus megacarpus Dorothy Sammis s.n. Orange Trabuco Canyon. Comment
  UCR59223  Ceanothus megacarpus B. G. Pitzer 1987-4-24 505 Orange [Santa Ana] River at north side of stable, c. 0.5 mi. north of state hwy 91, off Gypsum Canyon Road 122 Comment
  SEINET12210836  Ceanothus megacarpus W. Knight, Knight, I. 1982-1 4482 Orange Tilden Botanic Garden, Berkeley. Originally collected at Laguna Beach Comment
  IRVC26730  Ceanothus megacarpus subsp. megacarpus Peter A. Bowler 2003-4-26 s.n. Orange UC San Joaquin Freshwater Marsh Reserve; bluffs along NW edge of marsh. Southern Coastal 9 Comment
  CAS-BOT-BC83752  Ceanothus megacarpus var. megacarpus D. O. Burge 2008-4-29 989 b Orange Niguel Hill 270 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
  RSA542421  Ceanothus megacarpus var. megacarpus Fred M. Roberts 1988-3-9 3341 Orange South Laguna; Hobo Canyon, ca. 0.8km NE Goff island. 49 Comment
  RSA748166  Ceanothus oliganthus var. sorediatus K. M. Meyer, A. Townesmith, T. Scott 2007-3-10 7 Orange Cleveland National Forest, 2 mi. N of Main Divide Rd./NF3S04, off Hwy. 74. 957 Comment
  LA44933  Ceanothus palmeri W. E. Pequegnat; 1937-9-6 sn Orange Santa Ana Mountains, Ortega Rd Comment
  CAS-BOT-BC402196  Ceanothus papillosus var. roweanus R. F. Thorne; C. W. Tilforth; E. W. Lathrop 1977-4-27 49697 Orange Northern Santa Ana Mountains: Sierra Peak. Comment
  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
  POM305816  Ceanothus spinosus Henry J. Ramsey, Henry J. Ramsey 1937-4-2 1043 Orange Capistrano Canyon. Comment
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Dec 17 2011
  RSA542409  Ceanothus spinosus Fred M. Roberts 1989-2-23 4189 Orange Aliso-Wood Canyon Regional Park: Niguel Hill above Aliso Canyon along the northern edge of Sea View Pk., 1.2km ENE Aliso Pk. 250 Comment
  UCSB7051  Ceanothus tomentosus Lloyd, Robert 1959-4-17 Orange 10 miles south of West Corona on the Oak Flats Fire Road 792 Comment
  RSA3170  Ceanothus tomentosus subsp. olivaceus Carl B. Wolf 1932-3-8 2693 Orange Santiago Creek, 1 mil. E. Villa Park, W. base Santa Ana Mts. 152 Comment
  RSA171020  Ceanothus tomentosus var. olivaceus Robert F. Thorne 1963-7-26 32837 Orange In Tin Mine Canyon above Beek's Spring, Trabuco District, Santa Ana Mts., Cleveland National Forest. 854 Comment
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Apr 25 2011
  UC1495811  Cenchrus ciliaris Jan West 1983-10-8 Orange Freeway right of way along the Newport Freeway (#55) at its intersection with Chapman Ave. Orange (city of Orange) Comment
  SD254510  Cenchrus clandestinus D. E. Bramlet 2009-11-20 4416 Orange South Coast: San Diego Creek between Irvine and Newport Back Bay. 3 Comment
  SD234768  Cenchrus longisetus R. E. Riefner Jr. 2003-11-30 03 486 Orange South Coast: Santa Ana, 55 Freeway near Brookhollow St. 32 Comment
  RSA0035211  Cenchrus setaceus Sandy Gray 1981-04 1 Orange Hwy. 142, Carbon Canyon Rd. 3 miles west of Cavida, Chino. Comment
  UCR106276  Centaurea melitensis B. G. Pitzer, M. Georgiady 1997-4-5 3089 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
  UCR131879  Centaurea melitensis J. Mallory, V. McCoy 1995-7-3 6454- 134 Orange Santa Ana Mountains: Blind Canyon, c. 0.5 mi. NE of confluence w/ Santiago Canyon Wash; north of Irvine Lake. 300 Comment
  CLARK-A1528-916  Centaurea melitensis Patricia A. Andrews 1975-6-25 5927 Orange Capistrano Bay Beach 9 Comment
  POM202165  Centaurea melitensis L. M. Booth 1932-5-26 1117 Orange Newport Bay. Comment
  POM13256  Centaurea repens E. Johnson 1922-6-12 s.n. Orange Greenville. Comment
  RSA551  Centaurium venustum J. T. Howell 1927-6-2 15 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  UCR174185  Centaurium venustum A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33020 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
  UCR241040  Centranthus ruber Robert DeRuff 2010-1 381 Orange South Coast, Upper Newport Bay, on bay side of Back Bay Dr., below Eastbluff North 4 Comment
  CAS-BOT-BC288848  Centromadia parryi subsp. australis H. M. Hall 1920-10-4 11222 Orange Cypress Comment
  CAS-BOT-BC520401  Centromadia parryi subsp. australis R. E. Riefner, Jr. 2014-8-28 14 -310 Orange City of Costa Mesa, TAlbert Regional Park, immediately W of Starfish Ct., E of the Santa Ana River 4 Comment
  JEPS38140  Centromadia parryi subsp. australis L. M. Booth 1932-6-7 1169 Orange Newport Bay Comment
  RSA708451  Centromadia parryi subsp. australis Mark Elvin 2003-8-24 3012 Orange Southern coastal: San Jaquin Hills, Irvine, UCI, 100m N of the intersection of Shady Canyon Drive and Bonita Canyon Road. 72 Comment
  UCR256927  Centromadia parryi subsp. australis Jeremiah George 2011-7-8 s.n. Orange Bolsa Chica Mesa, south central edge 8 Comment
  UCSB52862  Centromadia parryi subsp. australis Roberts, Jr., Fred 1985-9-17 Orange Irvine; lot between Walnut Ave., Harvard Ave. and Peter's Creek Channel; UTM 3730050mN, 426250mE 20 Comment
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Feb 22 2019
  RSA0119680  Cerastium glomeratum Fred M. Roberts 2015-3-10 7925 Orange San Joaquin Hills: Niguel Hill, on ridge above Aliso Canyon ear end of Ceanothus Drive (Hangover House property), 0.4 km WNW summit Aliso Peak. 122 Comment
  UCR111727  Ceratonia siliqua H. Camp 2000-1-18 s.n. Orange Peninsular Range; Santa Ana Mtns., Caspers Regional Park, 12 mi. east of I-5 in San Juan Capistrano, along Ortega Hwy (Hwy 74), San Juan Creek close to Forest Service boundary and the hot springs 213 Comment
  CAS-BOT-BC400156  Ceratophyllum demersum John Thomas Howell 1927-8-13 2987 Orange Santa Ana River bottom, Santa Ana Canon [Canyon] 152 Comment
  UCR174498  Cercocarpus A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33061 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
  LA47748  Cercocarpus betuloides W. E. Pequegnat; April 1937 49 Orange Santa Ana Mountains, Above Glen Ivy 396 Comment
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Jan 26 2015
  SD143757  Cercocarpus betuloides Scott D. White 1997-3-28 4827 Orange Santa Ana Mts: Above Modjeska Canyon: Proposed water tank site 424 Comment
  UCR221892  Cercocarpus betuloides Dick Newell, Don Millar 2010-10-15 40 Orange South Coast, San Joaquin Hills, Laguna Wilderness parkm on the Willow Trail 220 Comment
  UCR231186  Cercocarpus betuloides A. C. Sanders, T. B. Salvato, Kent Beaman 2011-11-3 39938 Orange Peninsular Range; Santa Ana Mtns., near Pleasants Peak along the Main Divide Truck Trail 1125 Comment
  RSA748168  Cercocarpus minutiflorus K. M. Meyer, A. Townesmith, T. Scott 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
  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
  CAS-BOT-BC279502  Chaenactis artemisiifolia John Thomas Howell 1927-6-5 2433 Orange Southern Puente Hills in the Santa Ana Canon [Canyon] 152 Comment
  IRVC23289  Chaenactis artemisiifolia Fred M. Roberts, K. G. Marsh 1985-7-18 2053 Orange Temple Hill, Goff Ridge, 0.9km NE Goff Island off Nye Place Laguna Beach 168 Comment
  POM49175  Chaenactis artemisiifolia L. R. Abrams 1901-6-15 1808 Orange Trabuco Canyon Comment
  RSA749647  Chaenactis glabriuscula D. E. Bramlet 2008-5-9 4266 Orange Ridgeline between the upper two tributaries of Wier Cyn. 1.2km east of S. Serrano Ave & 1.3km west of Gypsum Cyn. 330 Comment
  POM202372  Chaenactis glabriuscula var. glabriuscula L. M. Booth 1932-5-18 1056 Orange Newport Bay. Comment
  RSA443832  Chaenactis glabriuscula var. glabriuscula Gordon Marsh 1978-5-22 s.n. Orange Santa Ana Mts, Upper Trabuco Canyon, gravel floodplain near live oak canyon road Comment
  SFV17359  Chaenactis glabriuscula var. glabriuscula J. N. Hogue, J. D. Dilley, D. L. Bishop 1998-4-9 103 .1 Orange Santa Ana Mountains San Juan Canyon at San Juan Hot Springs. Just inside western boundary of Cleveland National Forest. 213 Comment
  UC149240  Chaenactis glabriuscula var. glabriuscula LeRoy Abrams 1903-4-13 3254 Orange Buena Park Comment
  IRVC598  Chaenactis glabriuscula var. glabriuscula M. Savage 1965-3-21 Orange Irvine Terrace. Newport Beach Comment
  HSC7984  Chamaesyce albomarginata C. L. Hitchcock 1966-3-15 24140 Orange Stearns Lease, 1.5 mi. E of Brea. Comment
  IRVC29724  Chamaesyce albomarginata Mark A. Elvin, Barry S. Nerhus 2006-11-4 5255 Orange Huntington Beach; 1.5 km SW of Wintersburg, SW of jct Slater and Goldenwest; Shipley Nature Center. Southern Coastal 1 Comment
  CDA28633  Chamaesyce maculata Mark A. Elvin, D. G. Kelch 2006-12-9 5301 Orange Southern Coastal; Newport Backbay; Big Canyon, lower end. Comment
  RSA798090  Chamaesyce supina R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49581 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74) Comment
  IRVC850  Chamomilla suaveolens L. Burns 1965-4-6 Orange Comment
  RSA685682  Cheilanthes clevelandii Norman C. Cooper 1944-6-4 1339 Orange San Juan Canyon, lower camp ground. 457 Comment
  SEINET10793773  Cheilanthes newberryi George Yatskievych, K. G. Preston, Mafham 1981-4-26 Yatskievych 81 -145 Orange 10.9 miles W of El Carizo Guard Station. San Juan Canyon in S-facing cliff area. Santa Ana Mountains. 488 Comment
  IRVC14987  Chenopodium album Anonymous 1976-10-28 Orange Nieblas School. Fountain Valley Comment
  IRVC15079  Chenopodium album T. W. Mulroy 1973-3-20 Orange Bolsa Chica [Salt Marsh] Comment
  UC582777  Chenopodium album P. A. Munz 1936-6-30 14175 Orange 5 mi s Garden Grove Comment
  UC536960  Chenopodium ambrosioides Lawrence M. Booth 1932-7-25 1312 Orange 1 1/2 mi from ocean; Santa Ana River Comment
  UCR186133  Chenopodium ambrosioides T. B. Salvato, Katie Kurtz 2006-10-15 1920 Orange South Coast, Irvine, San Diego Creek flood control channel, near Michelson Drive and Harvard Avenue 6 Comment
  POM201674  Chenopodium ambrosioides L. M. Booth 830 Orange Santa Ana Canyon. Comment
  RSA234523  Chenopodium ambrosioides James Henrickson 1970-8-22 5298 Orange 2.5 miles NNW of Huntington Beach 0 Comment
  RSA5964  Chenopodium ambrosioides C. B. Wolf 1932-9-13 4036 Orange Bryant Ranch, No. boundary between San Gabriel River Flood Control Dike & Well in SE 1/4 sect. 25., 1300 ft W of n.E. corner of S.E. 1/4 Sect. 25. T4S R12W. 6 Comment
  RSA696276  Chenopodium ambrosioides Keith E. Hoffmaster 1934-7-3 s.n. Orange near Costa Mesa Comment
  POM201802  Chenopodium berlandieri var. sinuatum L. M. Booth 1933-9-2 1389 Orange Santa Ana River; flood bed near coast of Orange. Comment
  UCSB52919  Chenopodium californicum Roberts, Jr., Fred 1983-3-10 Orange Dana Point Headlands; 0.4 km. W Dana Point Harbor; 0.7 km. S Richard Henry Dana School 80 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
  JEPS59755  Chenopodium murale L. M. Booth 1932-6-9 1175 Orange Coastal Santa Ana River Basin Comment
  POM202236  Chenopodium murale L. M. Booth 1932-5-12 1000 Orange Newport Bay. Comment
  RSA650315  Chenopodium murale Norman Willis 1948-2-8 s.n. Orange 2 miles E of Orange 60 Comment
  SEINET7067538 Image available Chenopodium pumilio A. G. Vestal 1947-6-12 s.n. Orange Santa Ana River Wash northwest of Orange. Coordinate datum: NAD27. UTM Zone 11, 418667mE, 3739612mN. Comment
  RSA754074  Chlorogalum pomeridianum A. C. Sanders, Fred M. Roberts 2008-7-16 35846 Orange Lomas de Santiago, Dripping Springs off Limestone Canyon, c. 7.5 mi. ESE of Tustin 391 Comment
  RSA16337  Chorizanthe fimbriata Percy C. Everett 1935-6-18 7197 Orange Santa Ana Mountains, Main Divide Motorway Los Pinos Potrero. 915 Comment
  POM256711  Chorizanthe fimbriata W. Pequegnat 1940-6-12 s.n. Orange Los Puios Portrero. 915 Comment
  UC1608267  Chorizanthe fimbriata var. fimbriata Steve Boyd, Tim Ross 1992-5-20 7474 Orange western edge of San Mateo Canyon Wilderness Area in Lucas Canyon (along foot trail upstream from end of old roadgrade to upper homestead (corrugated steel building)); Southern Santa Ana Mountains, San Mateo Canyon Wilderness Ar 350 Comment
  UCR147627  Chorizanthe parryi var. fernandina Helen D. Geis 1902-3 541 Orange Coastal Plains & Basins; South Coastal Plain region, 'hills near Santa Ana Comment
  RSA749845  Chorizanthe procumbens D. Bramlet, Jim Harrison 2008-3-28 4132 Orange Bee Canyon. Bowerman landfill site.925 m S of the Bee Cyn. access road, 352 m W of the landfill entrance. Comment
  CAS-BOT-BC255246  Chorizanthe staticoides Herbert L. Mason 1926-4-25 2913 Orange 5 miles below Laguna Comment
  CAS-BOT-BC255250  Chorizanthe staticoides Le Roy Abrams 1901-6-1 1807 Orange Mt. Santiago 914 Comment
  JEPS57639  Chorizanthe staticoides Lawrence M. Booth 1932-5-12 1031 Orange Newport Bay. Comment
  RSA182  Chorizanthe staticoides J. T. Howell 1927-6-8 61 Orange Botany Garden, Rancho Santa Ana. [original location] 152 Comment
  RSA584709  Chorizanthe staticoides Fred M. Roberts, Scott Wade 1989-6-21 4390 Orange San Joaquin Hills: Pelican Hill, c.a. 0.4km ESE summit. 194 Comment
  RSA698367  Chorizanthe staticoides Kenneth Beard s.n. Orange East of Irvine Park. Comment
  RSA0051264  Chorizanthe staticoides Keith E. Hoffmaster 1935-3-17 550 Orange Near El Toro (Trabuco rd). Comment
  IRVC27934  Chrysanthemoides monilifera A. C. Sanders, Mark A. Elvin 2003-10-12 27324 Orange Irvine; UCI Arboretum, UCI campus near intersection of Jamboree Blvd and Campus Dr. Southern Coastal 15 Comment
  IRVC22736  Chrysanthemum coronarium Fred M. Roberts 1985-5-13 1785 Orange South Laguna; Mouth of Aliso Canyon, 0.6km NW Aliso Peak, 6 Comment
  RSA782060  Chrysanthemum coronarium Mark A. Elvin 2003-2-23 2311 Orange Irvine, San Joaquin Marsh along the berm of San Diego Creek 3 Comment
  RSA639979  Chrysanthemum coronarium L. C. Wheeler 1947-5-3 6474 Orange Newport Bay. Comment
  POM11896  Cirsium arvense Johnson, Ethelbert 1922-6-12 s.n. Orange Kalisco, east of Huntington Beach Comment
  UCD130550  Cirsium arvense P. B. Kennedy 1924-2-13 s.n. Orange Huntington Beach District. Comment
  UCSB48203  Cirsium occidentale var. californicum Roberts, Fred 1981-6-26 Orange Santa Ana Mtns.; San Juan Canyon, Lower San Juan Picnic Ground 392 Comment
  IRVC9122  Cirsium occidentale var. occidentale R. Yarnell 1966-4-13 74 Orange Santa Ana Canyon, old RSA Botanical Gardens site. Chino Hills Comment
  CAS-BOT-BC172418  Clarkia bottae Steve Boyd; Tim Ross 1992-5-19 7441 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of the wilderness in Lucas Canyon from crossing of creek by Lucas Canyon Trail, downstream to confluence with aliso Canyon. 335 Comment
  OBI5935  Clarkia bottae Carl B. Wolf 1932-7-2 3825 Orange Carbon Cyn, 1/8 mi below La Vida Springs 213 Comment
  RSA500  Clarkia bottae J. T. Howell 1927-6-17 155 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  UC58859  Clarkia bottae W. C. Blasdale June 1891 Orange Santiago Canyon Comment
  UCSB48213  Clarkia bottae Roberts, Fred 1981-5-3 Orange Santa Ana Mtns; Hot Springs Canyon; 1.1km NNE San Juan Guard Station; near base of San Juan Trail 264 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
  RSA789218  Clarkia purpurea subsp. quadrivulnera Naomi S. Fraga, Duncan S. Bell 2009-5-11 2724 Orange Chiquita Trail 762 Comment
  RSA581440  Clarkia purpurea subsp. quadrivulnera Fred M. Roberts, Gordon Marsh 1989-5-12 4359 Orange Santa Ana Mountains: Santiago Canyon, Flemming Regional Park, just E of Modjeska at end of paved road, ca. 3.3 km WSW Laurel Springs. 430 Comment
  UCR224163  Claytonia parviflora subsp. parviflora Fred M. Roberts 2008-3-19 6779 Orange South Coast, Dana Point Headlands, Center for Natural Lands Mgmt. Preserve, 0.8 km west of the Marine Institute, Dana Point Harbor 45 Comment
  CAS-BOT-BC439944  Claytonia perfoliata subsp. mexicana C. B. Wolf 1931-3-6 1853 Orange Trabuco Camp Ground, Trabuco Canyon, west slope of the Santa Ana Mts. 609 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
  UC1618041  Clematis Donald G. Nelson 1935-4-6 248 Orange just s of boundary of Cleveland National Forest (e of San Juan Capistrano) Comment
  UC1201823  Clematis pauciflora R. W. 1933-4-1 Orange near Capistrano Comment
  UCSB48083  Clematis pauciflora Roberts, Fred 1981-4-12 Orange Santa Ana; San Juan Canyon, Hwy 74 2.0km by road SW San Juan Guard Station; 2.7km SW Juan Rancho Survey Mark 210 Comment
  POM504  Cleome isomeris Lois Clency 1914-07 s.n. Orange Laguna. Comment
  RSA585183  Cleome isomeris D. Atwood 1993-3-27 17697 Orange Corona Del Mar State Park along Newport Coast Drive. 0 Comment
  RSA66687  Cleome isomeris F. W. Peirson 1924-2-10 4530 Orange southward from Corona del Mar. Comment
  UCR215281  Cleome isomeris Fred M. Roberts 2008-3-27 6812 Orange South Coast, Dana Point; Dana Point Headlands, Center for Natural Lands Mgmt. Preserve near Outlook 1, 0.5 km west of Marine Institute, Dana Point Harbor 45 Comment
  UC1130452  Cneoridium dumosum A. Lewis April, 1934 401 Orange Near Arch Beach. Corona 7.5'Q. Comment
  LA208484  Cneoridium dumosum B. Lower; 1954-4-3 Orange Dry hill behind Laguna Comment
  UCR193023  Collinsia concolor A. C. Sanders, Mitch Provance 2008-5-20 35398 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
  SEINET10308068 Image available Collinsia heterophylla Norman C. Cooper 1944-6-4 1361 Orange [Peninsular Range; Santa Ana Mountains]; San Juan Canyon, lower camp ground 396 Comment
  RSA305753  Collinsia heterophylla James R. Shevock 1313 Orange Newport Beach Bay. 11 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
  CAS-BOT-BC402182  Comarostaphylis diversifolia subsp. diversifolia R. F. Thorne; E. W. Lathrop; W. Wisura 1977-7-8 49607 Orange Santa Ana Mountains: rocky ravine tributary to San Juan Canyon, along Ortega Highway (74) about 2 miles above San Juan Fire Station. Comment
  UCSB52879  Comarostaphylis diversifolia subsp. planifolia Roberts, Fred 1983-4-7 Orange Laguna Niguel; Niguel Hill, above Pacific Island Road, 1.7 km. SE Aliso Peak; 3.0 km. SSW Alicia Fire Station 239 Comment
  SD144492  Conium maculatum B. Pitzer 1997-4-15 3130 Orange Crystal Cove State Park, N of the N end of the City of Laguna Beach. Along Moro Cyn Trail, from beginning to a point ca. 1.75 mi up the cyn. 49 Comment
  POM295610  Conium maculatum Lyman Benson 1946-7-8 12105 Orange Corona del Mar. 15 Comment
  RSA5966  Conium maculatum C. B. Wolf 1932-9-13 4039 Orange Bryant Ranch, No. boundary between San Gabriel River Flood Control Dike & Well in SE 1/4 sect. 25., 1300 ft W of n.E. corner of S.E. 1/4 Sect. 25. T4S R12W. 6 Comment
  RSA394801  Convolvulus arvensis Josephine Derigo 1941-7-13 20412 Orange Anaheim Comment
  RSA610239  Convolvulus simulans Fred M. Roberts, Tony Bomkamp 1997-3-13 4982 Orange Rancho Mission Viejo: Christianitos Canyon, 4 km ESE Viejo Survey Mark. 5 Comment
Read comments
Oct 20 2011
  POM201740  Conyza bonariensis L. M. Booth 1932-6-9 1181 Orange Newport Bay Comment
  RSA718959  Conyza canadensis Fred M. Roberts, Robert L. Allen 2006-10-8 6421 Orange San Juan Capistrano: San Juan Creek Flood Control Channel, c.a. 0.2 to 0.3km N Stonehill Dr. bridge and 1.1km SSE Marco Forster Jr. High Sch. 4 Comment
  RSA232215  Conyza canadensis James Henrickson 1970-8-22 5296 Orange 2.5 miles NNW of Huntington Beach. 0 Comment
  RSA5968  Conyza canadensis C. B. Wolf 1932-9-13 4041 Orange Bryant Ranch, dike at east side of San Gabriel River Flood Control, at North boundary of ranch 6 Comment
  CAS-BOT-BC133229  Conyza coulteri T. B. Salvato 2010-10-27 5139 Orange South Coast: Dana Point Headlands, Hilltop Park, north of Scenic Dr. and west of Green Lantern St., overlooking Dana Point Harbor 84 Comment
  IRVC24159  Conyza coulteri Fred M. Roberts 1985-9-16 2234 Orange Peter's Creek Channel, 0.1km N Main St. bridge, Irvine 6 Comment
  RSA735162  Conyza floribunda A. C. Sanders, Fred M. Roberts 2008-5-6 35210 -B Orange Lomas de Santiago, lower Hicks Canyon near Irvine Ranch gate and road junction to cement plant 180 Comment
  SBBG68641  Cordylanthus maritimus subsp. maritimus M. N. Ackley -May-1929 Orange Sunset Beach Comment
  SEINET3079825 Image available Cordylanthus rigidus Kathy Harper 1988-7-16 Orange Cleveland National Forest, on Hwy 74 near El Cariso. Comment
  RSA797439  Cordyline australis John Murphy 1938-6-6 s.n. Orange Birch Park Comment
  CAS-BOT-BC287841  Coreopsis californica Miss. Helen D. Geis 1904-4-1 732 Orange Silverado Canon, Santa Ana Mts Comment
  RSA749039  Coreopsis tinctoria A. C. Sanders, Fred M. Roberts 2008-8-7 35981 Orange lower Weir Canyon, at narrow gorge c. 0.6 mi. above mouth of cyn at Irvine Ranch gate. 185 Comment
  CAS-BOT-BC101296  Corethrogyne filaginifolia Carl B. Wolf 1933-8-24 5394 Orange Santa Ana Mts. Summit of Santiago Pk. 1731 Comment
  JEPS50151  Cornus sericea subsp. sericea Lawrence M. Booth 1932-7-19 1278 Orange Bolsas Creek Comment
  UC1719498  Coronopus didymus D. Atwood 1993-3-29 17727 Orange Huntington Beach along Beach Blvd. ca. 1/2 mi N of the beach Comment
  UCR195024  Cortaderia A. C. Sanders, Fred M. Roberts 2008-8-7 35978 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
  RSA528047  Cortaderia selloana A. C. Sanders 1990-10-6 10196 Orange Newport Bay, North Star County Beach area on the SW end of the bay, ca. 2 km inland of Highway 1. 1 Comment
  SD133232  Cortaderia selloana A. C. Sanders 1990-10-6 10196 Orange Newport Bay; North Star County Beach area on the southwest end of bay; ca 2 km inland of highway 1; on sandy flats and bluffs 0 Comment
  SEINET10541091  Cotoneaster pannosus Melvin L. Conrad, David B. Dunn 1973-6-13 Conrad 7125 Orange In vicinity of Laguna Beach. 152 Comment
  CAS-BOT-BC287222  Cotula australis Ira L. Wiggins 1966-3-5 20504 Orange Along Highway S-18, about 4.5 miles E of Laguna Beach Comment
  RSA696050  Cotula australis Kenneth Beard 1934-03 s.n. Orange Beneath tree on High School campus. Comment
  UCR207795  Cotula coronopifolia O. F. Clarke 2004-4-5 s.n. Orange South Coast, Newport Back Bay 3 Comment
  CAS-BOT-BC77623  Cotyledon Le Roy Abrams 1917-6-23 6555 Orange Balboa Comment
Read comments
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
  UCR222624  Cotyledon orbiculata T. B. Salvato 2010-10-27 5107 Orange South Coast, Dana Point Headlands, Harbor Point Park, south of Scenic Dr. and Cove Rd., beyond the end of Green Lantern St., overlooking Dana Point Harbor 70 Comment
  HSC6500  Crassula connata J. W. Johnson 1961-2-19 Orange Newport Beach, above upper Newport Bay Comment
  IRVC18551  Crassula connata A. B. McGee 1981-3-28 Orange [UCI] Ecological Preserve. Irvine Comment
  UCR103791  Crassula connata Scott D. White 1997-2-19 4700 Orange Santa Ana Mtns, above Modjeska Canyon; proposed water tank site 488 Comment
  JEPS50009  Crassula connata var. erectoides Alice King April 1908 Orange Santa Ana Comment
  POM201720  Cressa truxillensis L. M. Booth 1932-5-18 1052 Orange Newport Bay Comment
  POM3812  Cressa truxillensis P. A. Munz 1918-5-4 2168 Orange Laguna Comment
  RSA593876  Cressa truxillensis R. E. Riefner 1995-4-28 95 -115 Orange San Clemente State Beach. Comment
  SEINET239007  Cressa truxillensis Unknown 1965-7-7 Orange Tustin township near Peters Canyon Channel E of Santa Ana Marine Corps Air Station (Tustin 7.5' Q.) 61 Comment
  UCR258351  Cressa truxillensis Fred M. Roberts 2014-4-21 7848 Orange South Coast, SAN JOAQUIN HILLS: Laguna Lake 1 (Upper Laguna Lake), south basin 113 Comment
  HSC7965  Croton californicus J. W. Johnson 1961-3-29 Orange Newport Beach, slope overlooking Upper Newport Bay. Comment
  LA204938  Croton californicus J. A. Ewan; 1932-7-28 7704 Orange Corona del Mar Comment
  RSA0011253  Croton californicus Fred M. Roberts, Sandy Leatherman 2007-11-27 6670 Orange Yorba Linda: Santa Ana Canyon, Santa Ana River wash, S of E La Palma Road near Via Lomas de Yorba Linda, about 0.6 km W Gypsum Cyn. bridge. 113 Comment
  UCSB52909  Croton setiger Roberts, Jr., Fred 1984-8-14 Orange Santa Ana Mtns.; Chiquito Basin Trail, ridge between Chiquito Basin and Lion Canyon, 2.6 km. SSE Los Pinos Peak; 1.3 km. SSW Blue Jay Campground 885 Comment
  RSA648656  Crypsis schoenoides R. E. Riefner 2000-8-23 20 -731 Orange NCCP North Ranch Policy Plan Area. Fremont Canyon: N. of Santiago Creek & immediately S. of major stream fork 305 Comment
  RSA0031381  Cryptantha clevelandii Fred M. Roberts 2008-4-8 6852 Orange Lomas de Santiago: Loma Ridge, Upper Dripping Springs Cyn., 1.0 km NE Bee Peak, Irvine Ranch Conservancy. 458 Comment
  UCR150922  Cryptantha clevelandii Valerie Soza, LeRoy Gross 1999-6-7 479 Orange Santa Ana Mountains, West side of Modjeska Peak, along Main Divide Road 1448 Comment
  RSA680736  Cryptantha intermedia Scott D. White 2003-3-21 8824 Orange Santa Ana Mountain Foothills: Rancho Mission Viejo. East-facing slopes above an unnamed tributary to San Juan Creek. 122 Comment
  UCR119033  Cryptantha intermedia Beecher Crampton 1967-5-23 7957 Orange South Coast, 4 miles east of Irvine. UC South Coast Field Station 320 Comment
  UCR263772  Cryptantha intermedia Ed Kentner 2012-4-24 129 Orange Peninsular Range: Santa Ana Mountains, Lomas De Santiago, El Toro property 200 Comment
  SD87710  Cryptantha intermedia var. johnstonii F. W. Peirson 1924-5-31 Orange 5 miles south of Laguna Comment
  RSA733630  Cryptantha microstachys Keith E. Hoffmaster 1935-5-5 620 Orange San Juan Canyon., Santa Ana Mts. 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
  UCR209352  Cryptantha microstachys Fred M. Roberts 2008-4-8 7169 Orange Lomas de Santiago, Loma Ridge, Upper Dripping Springs Cnyn, 1.0 km northeast of Bee Peak, Irvine Ranch Conservancy 458 Comment
  RSA0029035  Cryptantha microstachys Keith E. Hoffmaster 1934-4-22 349 Orange Santiago Canyon near Silverado. Comment
  RSA0079432  Cryptantha muricata var. jonesii A. C. Sanders, Fred M. Roberts 2008-4-22 35024 Orange Santa Ana Mtns.: Lomas de Santiago, Limestone Canyon, c. 2 miles SW of Silverado. 366 Comment
  OBI19347  Cupressus arizonica Carl B. Wolf 1935-1-2 6279 Orange Santa Ana Mts, slopes of Sierra Peak, W of Claymine cyn along road to peak 671 Comment
  RSA7201  Cupressus forbesii B. D. Stark 1933-3-17 4532 -C Orange Claymine Canyon, Santa Ana Mts. 609 Comment
  UCR113449  Cupressus forbesii R. E. Riefner Jr., Adrian Wolf 2000-6-1 20- 451 Orange Peninsular Range, Santa Ana Mountains, North Ranch Policy Plan Area, north of Irvine Lake [Santiago Reservoir] and west of Black Star Canyon, west of dirt access road, W slope of Fremont Canyon. 518 Comment
  UCR119297  Cupressus forbesii R. E. Riefner Jr. 2000-1-18 20- 101 Orange Peninsular Range, Santa Ana Mountains: North Ranch Policy Plan Area, Main Divide Road, top of Gypsum Canyon at Windy Ridge 518 Comment
  UCR187357  Cupressus forbesii R. E. Riefner Jr. 2005-4-15 05- 202 Orange Peninsular Range; Santa Ana Mtns., Gypsum Canyon, south end of Gypsum Canyon Rd., south of 91 Freeway 160 Comment
  RSA753031  Cuscuta A. C. Sanders, Fred M. Roberts 2008-9-18 36097 Orange Lomas de Santiago, Santiago Creek Canyon c. 0.5-0.8 miles above the highway bridge 300 Comment
  UCR197796  Cuscuta A. C. Sanders, Fred M. Roberts 2008-9-18 36097 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
  CAS-BOT-BC224408  Cuscuta californica John Thomas Howell 1927-6-3 2420 Orange Southern Puente Hills in the Santa Ana Canon [Canyon] 152 Comment
  RSA570  Cuscuta californica J. T. Howell 1927-6-3 24 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA409708  Cuscuta californica George Price 1967-5-17 s.n. Orange Irvine Lake Comment
  RSA571  Cuscuta ceanothi J. T. Howell 1927-7-21 455 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  RSA697260  Cuscuta pentagona Keith E. Hoffmaster 1934-7-15 s.n. Orange Near Santa Ana Comment
  RSA394864  Cuscuta salina Anstruther Davidson 1907-9-1 1780 a Orange Newport Comment
  RSA70998  Cuscuta salina F. W. Peirson 1924-8-29 5080 Orange 2.5 miles from Balboa on road inland along creek. Comment
  UCR73106  Cuscuta subinclusa Scott D. White 1992-9-23 860 Orange Vicinity of Olinda, near city of Brea, immediately north of Carbon Canyon Road and east of Placentia Ave.; c. 1 mi. (airline) SSE of Tonner Canyon 183 Comment
  SEINET891443  Cuscuta subinclusa Philip A. Munz 1946-1 11555 Orange on Salix spp. And Baccharis; Sarta Ana River bottom, Rancho Santa Ana. 121 Comment
  CAS-BOT-BC299753  Cynara cardunculus Carl B. Wolf 1936-7-8 8100 Orange Western end of Newport Bay, Coast Highway 9 Comment
  RSA232217  Cynodon dactylon James Henrickson 1970-7-24 4992 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
  RSA678728  Cynodon dactylon Fred M. Roberts, Michelle Lee 2001-6-29 5506 Orange Rancho Mission Veijo: Chiquita Ridge, 0.3km WnW Rancgo Macian Survey Marker. PCR Vernal Pool 4., (33 33'11N,117 37' 18 W; T7S R7W, NW 1/4sec 21) 226 Comment
  CAS-BOT-BC114565  Cyperus eragrostis Carl B. Wolf 1932-6-13 3721 Orange Fullerton, Malvern & Nicholas Aves. 53 Comment
  RSA539371  Cyperus eragrostis Fred M. Roberts, D. Willick 1988-9-16 4136 Orange Peralata Hills: Oak Canyon Nature Center, Upper Walnut Canyon, 1.0 kilmeter N Robbers Peak. 180 Comment
  RSA599638  Cyperus eragrostis Fred M. Roberts, P. Barrett, G. Bastillos 1995-7-25 4967 Orange Santa Ana Mountains: San Juan Canyon along San Juan Creek, San Juan Hot Springs, 0.8 kilometer SSW Juan Rancho Survey Mark. 214 Comment
  SEINET7581659 Image available Cyperus eragrostis Sue A. Thompson, John E. Rawlins 1988-8-27 5256 Orange Cleveland National Forest, 3.8 mi E of San Juan Hot Springs on CA 74. 370 Comment
  RSA0043356  Cyperus erythrorhizos Fred M. Roberts, Laura Cohen 2012-10-31 7712 Orange San Joaquin Hills. Upper Laguna Lake, north end. Laguna Coast Wilderness Park, c. 5.1 km east northeast of Signal Hill. 113 Comment
  CAS-BOT-BC114322  Cyperus esculentus John Thomas Howell 1927-7-18 2794 Orange Santa Ana River bottom, Santa Ana Canyon. 152 Comment
  RSA697521  Cyperus esculentus Minor Warne 1934-5-13 s.n. Orange Talbert Drainage. Comment
  UC537169  Cyperus esculentus Lawrence M. Booth 1932-7-25 1310 Orange 1 1/2 mi. from ocean Santa Ana R. Comment
  UCSB54128  Cyperus esculentus Roberts, Fred 1986-8-9 Orange Yorba Linda; Santa Ana Canyon, Green River Golf Course above Santa Ana River, UTM 3747650mN, 437300mE 124 Comment
  RSA708531  Cyperus involucratus Fred M. Roberts, Robert L. Allen, Chris Barnhill 2004-8-21 6108 Orange Caspers Wilderness Park, San Juan Cyn., Old San Juan Hot Springs, c.a. 0.4km SW San Juan Ranger Station, north of SR 74. 214 Comment
  RSA715698  Cyperus involucratus Fred M. Roberts, Chris M. Barnhill 2005-9-27 6279 Orange San Juan Capistrano: San Juan Creek wash, east of La Novia Road bridge, 1.4km E Mission San Juan Capistrano, 27 Comment
  RSA734965  Cyperus involucratus A. C. Sanders, Fred M. Roberts 2008-7-3 35702 Orange Weir Canyon, along Weir Canyon Rd. 1.2 mi SSE of Walnut Canyon Reservoir, below Upper Blind Canyon Rd. 212 Comment
  RSA797602  Cyperus niger var. capitatus Robert F. Thorne 1977-11-21 49999 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs Comment
  RSA92095  Cyperus niger var. capitatus F. W. Peirson 1924-10-19 5231 Orange Wintersberg Comment
  UC838255  Cyperus odoratus P. A. Munz 1922-9-2 6359 a Orange Laguna Lake 45 Comment
  CAS-BOT-BC227846  Cyrtomium falcatum R. E. Riefner, Jr. 2011-7-1 11 -83 Orange City of Newport Beach, beach area west of the end of Cameo Shores Road; south ca. 1 mi from Poppy Avenue 1 Comment
  RSA785389  Cyrtomium falcatum R. E. Riefner Jr. 2011-7-1 11 -83 Orange City of Newport Beach. Beach area west of the end of Cameo Shores Road. South ca. 1 mi from Poppy Ave. 2 Comment
  SD240772  Cyrtomium falcatum R. E. Riefner Jr. 2011-7-1 11 83 Orange City of Newport Beach, beach area west of the end of Camep Shores Road; south ca. 1 mi from Poppy Avenue. 2 Comment
  RSA697678  Dactylis glomerata J. Russell Bruff 1935-06 s.n. Orange Santa Ana Comment
  CAS-BOT-BC402178  Datisca glomerata R. F. Thorne; E. W. Lathrop; W. Wisura 1977-7-8 49563 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74). Comment
  SBBG128673  Datisca glomerata R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49563 Orange San Juan Cyn at lower Picnic Camp, just below Ortega Hwy (74); Santa Ana Mtns Comment
  SEINET8731612 Image available Datura meteloides Jean Coulson 1959-1 s.n. Orange Santa Anna Mts.; 2.1 miles E. on Esperanz Road from Orangethorpe. On S. side of road. Comment
  IRVC27503  Datura stramonium Mark A. Elvin 2004-5-2 3417 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7km (air) NNW UC Irvine campus center. Southern Coastal 3 Comment
  IRVC29795  Datura stramonium Mark A. Elvin, Dean Kelch 2006-12-9 5321 Orange Irvine; San Diego Creek, edge of San Joaquin Marsh, beside University Dr., between Campus Dr. and Hwy 73. Southern Coastal 3 Comment
  UCSB10435  Datura wrightii Haller, Norman 1953-4-25 Orange U.S. 101, 3 miles northwest of Laguna Beach Comment
  IRVC17044  Daucus pusillus C. Thompson 1965-4-12 Orange Laguna Hills Comment
  UC536939  Daucus pusillus Lawrence M. Booth 1932-5-12 1033 Orange Newport Bay Comment
  UCR191224  Daucus pusillus A. C. Sanders 2008-4-29 35126 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, western end of Loma Ridge on road to sheriff's training facility, c. 1.5 mi. SW of Santiago Reservoir 335 Comment
  JEPS38341  Deinandra fasciculata Lawrence M. Booth 1932-5-12 1038 Orange Newport Bay Comment
  CAS-BOT-BC299325  Deinandra fasciculata Louis C. Wheeler 1932-6-25 861 Orange Bluff overlooking Newport Bay 7 Comment
  UCR224403  Deinandra kelloggii Robt. L. Allen, Linnell R. Allen 2008-7-27 s.n. Orange Santa Ana Mountains, Long Canyon Watershed, along Long Canyon Road, 128 m southeast of juntion with spur to Mystic Oaks (McConville Camp), 0.48 air miles upslope from junction with Ortega Hwy (SR74) 749 Comment
  CAS-BOT-BC413810  Deinandra paniculata R. E. Riefner, Jr. 2014-7-5 14 -215 Orange City of San Clemente, San Clemente State Beach, SSW ca. 100 m from the intersection of Ave. Calafia and South Ola Vista Rd. 40 Comment
  RSA703199  Deinandra paniculata R. E. Riefner Jr. 2004-7-6 04 -302 Orange Upper Chiquita Canyon, vicinity of Oso Pkwy. and SR-241. 224 Comment
  SD247322  Deinandra paniculata R. E. Jr. Riefner 2008-5-19 08 100 Orange Ladera Ranch, Cecil Pasture at Jerome Road; along Bluff Top Trail. 156 Comment
  RSA724054  Deinandra paniculata R. E. Riefner 2003-8-31 03 -337 Orange San Clemente State Beach, mima mound field in SW corner of park. 27 Comment
  RSA0028963  Delphinium parryi subsp. parryi Thelma Shipe 1932-5-26 s.n. Orange Laguna Hills. PR8. Comment
  POM13827  Delphinium patens subsp. hepaticoideum P. A. Munz 1922-4-28 5042 Orange Leach Canyon, Santa Ana Mountains 671 Comment
  RSA662563  Dendromecon rigida P. Shirokawa 1998-5-7 21 Orange Cleveland National Forest- Trabuco Ranger District, 3.2 miles from Ortega Highway (State Highway 74) on North Main Divide Road 991 Comment
  RSA16474  Dendromecon rigida subsp. rigida Percy C. Everett 1935-6-19 7233 Orange Santa Ana Mtns.; Main Divide Motorway; 7mi. from summit Santiago Peak (se) 1280 Comment
  RSA162740  Descurainia californica J. D. Olmsted 1959-4-23 472 Orange Spring Trail at Beacon Pines Ranch; 9 miles SW of Corona. 762 Comment
  IRVC1079  Descurainia pinnata subsp. menziesii J. Morgan 1965-4-27 Orange Elmore Ranch. San Clemente Comment
  VVC357  Dicentra chrysantha P. J. MacKay 1990-5-25 s.n. Orange Peninsular Range, Hwy 74 near San Juan Hot Springs 198 Comment
  RSA737543  Dichelostemma capitatum subsp. capitatum Fred M. Roberts 2008-3-12 6718 Orange Dana Point: Dana Point Headlands CNLM Preserve, western side, c.a. 0.8 km W Marine Institute (Dana Point Harbor). 50 Comment
  IRVC27449  Diospyros lycioides A. C. Sanders, Mark A. Elvin 2003-10-12 27331 Orange Irvine; UCI Arboretum, UCI campus near intersection of Jamboree Blvd and Campus Dr. Southern Coastal 15 Comment
  SD220026  Diplachne fusca var. uninervia Mark A. Elvin 2004-5-2 3420 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7 km (air) NNW UC Irvine campus center. 3 Comment
  SEINET3412116 Image available Diplachne fusca var. uninervia Pat Sawyer 34 Orange from Back Bay area at Newport Beach Comment
  SBBG6917  Diplacus X australis M. Van Rensselaer 1945-5-25 1883 Orange Laguna Cyn Comment
  SD139996  Diplacus aurantiacus B. Pitzer, S. Hemstreet 1992-5-27 1962 Orange Cleveland National Forest, Along road (3S04) to Blue Jay Campground, off State Hwy 74 (Ortega Hwy). Ca. 2 mi. (airline) W of El Cariso Campground 762 Comment
  SJSU377  Diplacus aurantiacus A. W. Jacobs 1938-8-4 Orange Trabuco Canyon Rd, Santa Ana Mts c. 8 mi NE of El Toro Comment
  CAS-BOT-BC152263  Diplacus clevelandii E. K. Balls 1958-6-27 23279 Orange Road to Santiago Peak from Silverado Canyon, 3.8 mi. from gate. 975 Comment
  CAS-BOT-BC152060  Diplacus longiflorus H. E. McMinn 1949-7-9 5598 Orange Ca. 2 miles east of San Juan Capistrano, San Juan Pass, Highway 74 Comment
  RSA0045518  Diplacus longiflorus Kenneth Beard 1934-04 s.n. Orange Mts. along Ortega Highway; north of San Juan Hot Springs. CP5. Comment
  CAS-BOT-BC150843  Diplacus puniceus Alice Eastwood; John Thomas Howell 1937-4-24 3930 Orange 2 miles east of San Juan Hot Springs Comment
  SBBG28885  Diplacus puniceus N. C. Cooper 1944-6-4 1321 Orange Elsinore Mtn, Lookout at top 1066 Comment
  SEINET13777977 Image available Diplacus puniceus J. McNeill 1969-1 3001 Orange San Juaquin Hills, Coyote Canyon 200 Comment
  RSA0054846  Diplacus puniceus Anonymous s.n. Orange Laguna Canyon. Comment
  RSA605374  Diplotaxis muralis A. C. Sanders 1990-10-6 10186 Orange Newport Bay, North Star County Beach area on the SW end of the bay, ca. 2 km inland of Hwy 1 1 Comment
  CAS-BOT-BC43568  Diplotaxis tenuifolia Katherine Esau 1931-5-13 s.n. Orange Santa Ana. Comment
  RSA39340  Diplotaxis tenuifolia E. L. Paddock 1943-6-2 12737 Orange SE of First Street, 1/2 mile W of Tustin Street, Santa Ana. Comment
  RSA0120555  Distichlis littoralis Elisabeth Norland 1929-3-16 s.n. Orange Huntington Beach. Comment
  CAS-BOT-BC208626  Distichlis spicata Bernard G. G. de Retz 1961-5-16 47611 Orange Huntington Beach Comment
  SEINET5500867 Image available Dodecatheon clevelandii Sally Walker 1998-3-23 Orange Quail trail Wm casper park Comment
  RSA749640  Dryopteris arguta D. E. Bramlet 2008-4-1 4138 Orange Upper Hicks Canyon, 24m S of the Haul Road 302 Comment
  IRVC127  Dryopteris arguta J. Morgan 1965-4-25 Orange Beacon Bay. Newport Beach Comment
  IRVC14121  Dryopteris arguta K. Marvosh 1966-4-6 s.n. Orange Silverado Canyon, 0.5mi S Maple Springs Rd. in Spruce Canyon; dry, rocky canyon slope. Santa Ana Mountains 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
  IRVC19378  Dryopteris arguta R. L. Allen 1977-2-13 s.n. Orange [San Juan Canyon], Ortega Hwy, roadside 111; small side canyon, NW of main canyon. Santa Ana Mountains Comment
  RSA704080  Dryopteris arguta D. E. Bramlet, Fred Roberts 2003-5-1 3426 Orange Donna O'Neill Reserve. Ephemeral drainage north of the North Ridge trail 457m west of Cristianitos Rd. and 1.07 km north of the E-W access road. 128 Comment
  RSA423460  Dudleya F. R. Fosberg 1931-8-19 7221 Orange Aliso Creek, mouth Comment
  CAS-BOT-BC109565  Dudleya blochmaniae subsp. blochmaniae Reid Moran 1950-4-24 3388 Orange San Clemente. Comment
  CAS-BOT-BC109689  Dudleya cymosa subsp. ovatifolia K. Nakai 1979-10-30 542 Orange Santa Ana Mountains, Santiago Canyon, end of Modjeska Road. 487 Comment
  RSA644961  Dudleya cymosa subsp. ovatifolia R. E. Riefner, Adrian Wolf 2000-1-24 20 -115 Orange NCCP North Ranch Policy Plan Area: Fremont Canyon: N of Santiago Creek & immediately N. of major stream fork. 305 Comment
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May 26 2016
  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
  POM296489  Dudleya lanceolata Lyman Benson 1950-4-29 I- 4339 Orange South end of San Clemente. Hill 1/2 mile from ocean. 152 Comment
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Oct 23 2014
  RSA170990  Dudleya lanceolata R. F. Thorne 1963-7-26 s.n. Orange Near Beek's Spring; Tin Mine Canyon; Trabuco District, Santa Ana Mountains, Cleveland National Forest. 716 Comment
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Apr 25 2011
  RSA346  Dudleya lanceolata J. T. Howell 1927-7-3 255 Orange Claymine Canyon near Sierra Peak. 305 Comment
  CAS-BOT-BC411412  Dudleya lanceolata Alice Eastwood; John Thomas Howell 1935-4-24 3925 Orange 2 miles E of San Juan Hot Springs Comment
  RSA397818  Dudleya multicaulis F. W. Peirson 1922-5-18 3071 Orange Santa Ana River. 122 Comment
  RSA584711  Dudleya multicaulis Fred M. Roberts 1989-6-7 4377 Orange Santa Ana Mountains: Upper Gypsum Canyon along ridge between Gypsum and Blind Canyon, c. 6.3 km WSW Sierra Peak. 411 Comment
  RSA660284  Dudleya multicaulis Orlando Mistretta 1992-6-6 415 Orange Vicinity of Sierra Peak, (Historical locality), on old roadcut heading down to powerlines 695 Comment
  SD45412  Dudleya multicaulis Reid Moran 1950-5-24 3412 Orange Brushy slopes of Laguna Canyon 1.5 miles above the mouth. Comment
  UC2059978  Dudleya multicaulis K. Nakai 1981-6-4 774 Orange 0.3 mi E of Laguna Canyon Road on El Toro Road. Comment
  UC536908  Dudleya multicaulis Lawrence M. Booth 1932-5-18 1054 Orange Newport Bay Comment
  UCR203895  Dudleya multicaulis R. E. Riefner Jr. 2008-3-5 08- 30 Orange Santa Ana Mountains, Irvine Ranch Reserve, Fremont Canyon Conservation Easement, east Fremont Canyon, lower Lakeview SCE Road 274 Comment
  UCR37798  Dudleya multicaulis Steve Boyd 1981-5-13 s.n. Orange South Coast, Pelican Hill, Irvine Ranch Property, San Joaquin Hills south of Corona del Mar 218 Comment
  CAS-BOT-BC109746  Dudleya stolonifera Reid Moran 1977-6-13 24230 Orange Willow Canyon, tributary of Laguna Canyon. 125 Comment
  SD45416  Dudleya stolonifera Reid Moran 1950-5-24 3411 Orange Laguna Canyon, north-facing cliff at about 800 feet, 1.5 miles above canyon mouth and 1.7 miles below Toro Road junction. Comment
  UC1015150  Dudleya stolonifera Reid Moran 1950-5-24 3411 Orange 1.5 mi above canyon mouth (1.7 mi below Toro Rd junction); Laguna Canyon 243 Comment
  SD236267  Dysphania multifida A. C. Sanders, Fred M. Roberts 2008-6-17 35476 Orange Peninsular Range; Santa Ana Mountains: Lomas de Santiago, Agustine staging area near Limestone Canyon Rd gate at Santiago Canyon Road (Black Star Canyon 7.5'Q) 259 Comment
  CAS-BOT-BC197027  Echinochloa colona Ira L. Wiggins 1965-9-25 20251 Orange Curbway, S side of Dorothy Lane near intersection with Kroeger Avenue, Fullerton Comment
  CAS-BOT-BC197031  Echinochloa colona Ira L. Wiggins 1965-10-24 20295 Orange On S. side of Yorba Linda Blvd, between State College Blvd. and Placentia Avenue, Fullerton Comment
  CAS-BOT-BC197175  Echinochloa crus-galli Carl B. Wolf 1932-6-13 3720 Orange Fullerton, Malvern & Nicholas Aves. 53 Comment
  UCR154271  Echinochloa crus-galli Mark A. Elvin 2004-5-2 3426 Orange Southern Coastal, Irvine: San Joaquin Freshwater Marsh, near Campus and University Drives; 1.7 km (air) NNW UC Irvine campus center 3 Comment
  RSA184153  Echinochloa crus-galli I. L. Wiggins 1965-9-26 20262 Orange Fullerton. Comment
  CAS-BOT-BC445606  Echinodorus berteroi R. E. Riefner 2000-8-21 20 -728 Orange Santa Ana Mtns.: Irvine Lake [Santiago Reservoir], first cove east of the dam. 238 Comment
  RSA532554  Echinodorus berteroi David E. Bramlet 1990-10-17 2063 -1 Orange Newport Beach: Delhi Channel at the intersection of Irvine Ave. and Mesa Drive just west of Newport Beach Golf Course. 6 Comment
  RSA715696  Eclipta prostrata Fred M. Roberts, Chris M. Barnhill 2005-9-27 6276 Orange San Juan Capistrano: San Juan Creek wash, east of La Novia Road bridge, 1.4km E Mission San Juan Capistrano, 27 Comment
  RSA718968  Eclipta prostrata Fred M. Roberts, Robert L. Allen 2006-10-8 6412 Orange San Juan Capistrano: San Juan Creek Flood Control Channel, c.a. 0.2 to 0.3km N Stonehill Dr. bridge and 1.1km SSE Marco Forster Jr. High Sch. 4 Comment
  UCR197678  Eclipta prostrata A. C. Sanders, Fred M. Roberts 2008-9-18 36069 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge 330 Comment
  IRVC24281  Eclipta prostrata Fred M. Roberts, G. A. Marsh 1985-10-26 2518 Orange Santa Ana River: adjacent to Huntington Beach; 0.7km SSW Adams Street bridge. southern coastal 4 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
  SBBG133403  Ehrharta calycina S. D. White, M. Honer 2003-6-12 9542 Orange southwestern Santa Ana Mtns foothills, Rancho Mission Viejo, upper end of Tramas Cyn 152 Comment
  RSA665953  Elatine brachysperma Fred M. Roberts, Michelle Lee, Kristen Szabo 2001-4-13 5424 Orange Rancho Mission Viejo: South of San Juan Creek, 0.6km WNW Median Rancho Survey Marker. PCR Vernal Pool 2. 183 Comment
  UC1784198  Eleocharis coloradoensis Donald G. Nelson 1935-4-15 297 Orange on road from Garden Grove to Costa Mesa, converging near Costa Mesa, near the main highway from Santa Ana Comment
  RSA86  Eleocharis geniculata J. T. Howell 1927-7-18 422 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  UCR191469  Eleocharis macrostachya A. C. Sanders, Fred M. Roberts 2008-4-8 34734 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, head of Hicks Canyon, S of Santiago Reservoir 351 Comment
  UC306102  Eleocharis macrostachya Robinson and Crocker 1916-3-29 724 Orange Santa Ana Mountains, marshy regions in foothills Comment
  RSA750923  Eleocharis montevidensis A. C. Sanders, Fred M. Roberts 2008-7-3 35701 Orange Weir Canyon, along Weir Canyon Rd. 1.2 mi. SSE of Walnut Canyon Reservoir, below Upper Blind Canyon Rd. 212 Comment
  SD234737  Eleocharis montevidensis A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33003 Orange Peninsular Range; Santa ana Mtns.: San Juan Canyon, from Lower San Juan Picnic Area to ca. 1 mile downstream, parallel to Hwy 74 and near Riverside Co. line. Canyon bottom. 366 Comment
  RSA599640  Eleocharis montevidensis var. montevidensis Fred M. Roberts, P. Barrett, G. Bastillos 1995-7-25 4969 Orange Santa Ana Mountains: San Juan Canyon along San Juan Creek, San Juan Hot Springs, 0.8 kilometer SSW Juan Rancho Survey Mark. 214 Comment
  RSA365351  Eleocharis montevidensis var. montevidensis Anstruther Davidson 1926-05 s.n. Orange St Ana River Comment
  RSA722324  Eleocharis palustris J. Russell Bruff 1927-3-16 2 -M Orange Roadside at Country Club. Comment
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Sep 20 2011
  UCR266424  Eleusine coracana D. E. Bramlet 2009-11-20 4419 Orange South Coast, San Diego Creek between Irvine and Newport Back Bay 8 Comment
  RSA542552  Eleusine indica Fred M. Roberts 1987-8-31 3599 Orange Santa Ana River: adjacent to Santa Ana., UTM 3736150m N 415900m E 27 Comment
  CAS-BOT-BC206765  Elymus glaucus subsp. glaucus Le Roy Abrams 1901-6-1 1822 Orange Santiago Pk. 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
  UCR271003  Emex spinosa Mitch Provance, Travis Kegel 2016-4-8 416- 60 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
  CDA22471  Emex spinosa Ball 1933-4-21 Orange Lemon Grove. 0 Comment
  RSA552942  Emmenanthe penduliflora Fred M. Roberts, Carol A. Roberts 1989-4-20 4299 Orange Santa Ana Mtns.: upper Lion Canyon along San Juan Trail just south of Blue Jay Campground, 2.5km SE Los Pinos Peak. 980 Comment
  HSC25235  Encelia californica Richard Spjut 1972-2-22 2227 Orange W of the Cleveland National Forest in the Santa Anna Mtns. along Hwy. 74 152 Comment
  POM122763  Encelia californica Marcus E. Jones 1924-8-26 s.n. Orange Newport. Comment
  RSA278305  Encelia californica C. W. Tilforth, Walter Wisura 1979-5-23 1809 Orange Mouth of Aliso Canyon, south Laguna. Comment
  UCR193065  Encelia californica A. C. Sanders, Fred M. Roberts 2008-5-6 35216 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hicks Canyon near Irvine Ranch gate and road junction to cement plant 180 Comment
  UCR99554  Encelia californica B. G. Pitzer 1996-4-30 2792 Orange San Joaquin Hills, Crystal Cove State Park, south of City of Irvine on State Hwy 1 (Pacific Coast Hwy) 15 Comment
  IRVC659  Encelia californica L. Burns 1965-5-2 Orange 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
  UCR195004  Epilobium ciliatum A. C. Sanders, Fred M. Roberts 2008-8-7 35989 Orange Peninsular Range; Santa Ana Mtns., lower Weir Canyon, at narrow gorge c. 0.6 mi. above mouth of cyn at Irvine Ranch gate 192 Comment
  UCSB48194  Epilobium ciliatum Roberts, Fred 1981-6-26 Orange Santa Ana Mountains, East fork Viejo Cyn., 0.6 km N Calif. Rte. 74; 2.7km E San Juan Guard Station 326 Comment
  RSA496  Epilobium ciliatum subsp. ciliatum J. T. Howell 1927-7-5 267 Orange West side, Rancho Santa Ana [Botanic Garden]. 152 Comment
  RSA731933  Epilobium ciliatum subsp. watsonii Fred M. Roberts, Sandy Leatherman 2007-11-27 6677 Orange Yorba Linda: drainage channel on east side of Amberdale Dr. ca. 0.3 km S Fairmont Blvd. 118 Comment
  RSA615544  Epipactis gigantea Pete Bloom 1991-05 s.n. Orange Lomas de Santiago: Limestone Canyon Regional Park site, Upper Limestone Canyon, 2.4 kilometers WNW Bolero Lookout. 437 Comment
  IRVC1250  Equisetum hyemale subsp. affine L. Burns 1965-4-21 Orange Balboa Peninsula. Newport Beach Comment
  UCR195014  Equisetum laevigatum A. C. Sanders, Fred M. Roberts 2008-8-7 35987 Orange Peninsular Range; Santa Ana Mtns., lower Weir Canyon, at narrow gorge c. 0.6 mi. above mouth of cyn at Irvine Ranch gate 192 Comment
  RSA753080  Eragrostis A. C. Sanders, Fred M. Roberts 2008-9-18 36091 Orange Lomas de Santiago, Santiago Creek Canyon c. 0.5-0.8 miles above the highway bridge 300 Comment
  RSA612207  Eragrostis cilianensis L. C. Wheeler 1932-8-13 1131 Orange 2 miles N Claremont. 412 Comment
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Nov 15 2013
  UCD62942  Eragrostis cilianensis Beecher Crampton 1971-6-9 8723 Orange UC South Coast Field Station, east of Irvine. Comment
  POM298879  Eragrostis mexicana subsp. virescens Frank W. Gould 1944-6-25 2362 Orange Tournat Ranch, Garden Grove. Comment
  RSA554213  Eragrostis pectinacea Tim Hartz 1990-11-19 s.n. Orange Irvine, U. C. South Coast Field Station, near the U. C. Irvine Campus. Comment
  RSA233016  Eremocarpus setiger Christopher Davidson, G. Benny 1971-6-15 1553 Orange Carbon Canyon, 1 mile SW of Carbon Canyon mineral spring. Comment
  RSA0119700  Eriastrum densifolium subsp. sanctorum J. T. Howell 1927-8-13 623 Orange Santa Ana River Bottom 152 Comment
  UCR241914  Eriastrum sapphirinum Fred M. Roberts 2012-5-10 7564 Orange Peninsular Ranges; Coastal Foothills, San Joaquin Hills, south fork of Buck Gully, north slope Pelican Hill, 0.6 km N summit Pelican Hill, north of Pelican Hill Drive 183 Comment
  RSA0122944  Eriastrum sapphirinum subsp. dasyanthum Scott D. White, Michael Honer 2003-5-29 9430 Orange Santa Ana Mtn foothills: Rancho Mission Viejo. Hills above Canada Gobernadora, west side of canyon, ca. 1 air mile north of Ortega hwy. 91 Comment
  CAS-BOT-BC514999  Eriastrum sapphirinum subsp. dasyanthum John Thomas Howell 1927-6-9 2471 Orange North side, Santa Ana Canyon 213 Comment
  RSA16664  Ericameria palmeri var. pachylepis C. B. Wolf 1931-10-30 2504 Orange Rancho Santa Ana, Santa Ana Canyon. 207 Comment
  RSA54171  Ericameria palmeri var. pachylepis C. B. Wolf 1931-10-30 2504 Orange Rancho Santa Ana, Santa Ana Canyon. 207 Comment
  RSA554643  Ericameria palmeri var. pachylepis Scott D. White 1992-9-29 866 Orange Vicinity of City of Brea, immediately N of Carbon Canyon Road and E of Placentia Avenue, +/- 1 mi (airline) S/SE of Tonner Canyon. 183 Comment
  RSA703702  Ericameria palmeri var. pachylepis Fred M. Roberts, David E. Bramlet 2004-11-5 6132 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, Gato Cyn., tributary to Cristianitos Cyn., 0.62 km NW Gato Gate and 0.55 km W Cristianitos Rd. 125 Comment
  UCR194993  Ericameria palmeri var. pachylepis A. C. Sanders, Fred M. Roberts 2008-8-7 35996 Orange Peninsular Range; Santa Ana Mtns., 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
  RSA7387  Ericameria parishii C. B. Wolf 1933-8-24 5407 Orange Main divide motorway S of Beaford Peak, Santa Ana Mts 1067 Comment
  UC1118798  Ericameria parishii var. parishii A. Lewis 1934-5-1 414 Orange Trabuco Canyon Cleveland National Forest, Elsinore Quad., Trabuco Canyon 1341 Comment
  CAS-BOT-BC293369  Erigeron Philip A. Munz 1946-10-2 11554 Orange Rancho Santa Ana, Santa Ana River Canyon 121 Comment
  UCR258622  Erigeron bonariensis Fred M. Roberts 2014-7-25 7886 Orange South Coast, SAN JOAQUIN HILLS: Upper Laguna Canyon, Laguna Lake 1 (Upper Laguna Lake), north basin, c.a. 5.1 kn ENE summit Signal Hill. Laguna Coast Wilderness Park 113 Comment
  IRVC14814  Erigeron foliosus var. foliosus A. S. Boughey 1968-7-9 384396 Orange Santa Ana mtns: upper Santiago Canyon. Peninsular Ranges 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
  POM357494  Erigeron foliosus var. stenophyllus F. R. Fosberg 1931-6-21 748 Orange Silverado Canyon. Santa Anita Mts. Comment
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Nov 26 2016
  UCR247454  Erigeron karvinskianus R. E. Riefner Jr. 2013-1-16 13- 15 Orange South Coast, city of Newport Beach, vicinity of Poppy Ave. and Ocean Blvd., coastal bluff at Little Corona Beach 6 Comment
  RSA298672  Eriodictyon crassifolium D. C. Michener 1982-5-24 4043 Orange 8.4 miles north of El Cariso, Orange County. Comment
  RSA5322  Eriodictyon crassifolium B. D. Stark 1932-12-30 4473 Orange Rancho Santa Ana. River bottom below Mexican houses. 122 Comment
  RSA0055744  Eriodictyon crassifolium R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49682 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. 457 Comment
  UC1925892  Eriogonum Donald G. Nelson 1936-6-5 438 Orange Hills NE of Fullerton. 91 Comment
  CAS-BOT-BC241888  Eriogonum cinereum Peter A. Bowler 2003-4-20 s.n. Orange Southern Coastal: UCI Arboretum 15 Comment
  POM184315  Eriogonum elongatum L. M. Booth 1932-8-9 1370 Orange Newport Lagoon, above 3 miles from ocean, above the dirt road. Comment
  UC718406  Eriogonum elongatum var. elongatum Carl B. Wolf 1933-8-24 5401 Orange summit of Santiago Pk. Santa Ana Mts., Santiago Pk. 1731 Comment
  POM122566  Eriogonum fasciculatum Marcus E. Jones 1924-8-26 s.n. Orange Newport. Comment
  POM293156  Eriogonum fasciculatum Lyman Benson 1946-5-13 12096 Orange Corona del Mar, Pacfic Ocean drainage area 15 Comment
  RSA0031722  Eriogonum fasciculatum Caralisa Breidenbaugh, Mark Breidenbaugh 1992-5-25 63 Orange 1/2 mile south of Chino Hills State Park Boundary. 228 Comment
  RSA734991  Eriogonum fasciculatum subsp. foliolosum A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35286 Orange Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir. 300 Comment
  UCR192994  Eriogonum fasciculatum subsp. polifolium A. C. Sanders, T. B. Salvato 2008-5-13 35382 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
  SEINET6418402  Eriogonum fasciculatum var. fasciculatum Thomas C. Hensel 1973-7-5 251 Orange Hillside adjacent to southern end of Santa Ana Dr. Laguna Beach 229 Comment
  UC536920  Eriogonum fasciculatum var. fasciculatum Lawrence M. Booth 1932-5-18 1057 Orange Newport Bay Comment
  UCR239622  Eriogonum fasciculatum var. fasciculatum Fred M. Roberts 2012-4-24 7498 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
  CLARK-A1528-3648  Eriogonum giganteum John C. Roos, Lucille Roos 1950-9-25 4992 Orange Santa Ana Canyon Comment
  SBBG62090  Eriogonum gracile J. T. Howell 1927-7-16 2791 Orange N side of Santa Ana Cyn 152 Comment
  UC537258  Eriogonum gracile L. M. Booth 1933-8-26 1386 Orange Newport Lagoon Comment
  CAS-BOT-BC253479  Eriogonum gracile Geo. B. Grant 1904-9-15 6422 Orange Pasadena Comment
  POM18087  Eriogonum nudum var. pauciflorum P. A. Munz 1923-9-7 7750 Orange Santiago Peak, Santa Ana Mountains. 1646 Comment
  RSA7476  Eriogonum nudum var. pauciflorum Carl B. Wolf 1933-8-24 5400 Orange Summit of Santiago Peak, Santa Ana Mountains. 1732 Comment
  CAS-BOT-BC257874  Eriogonum parvifolium David D. Keck 1932-9-30 1904 Orange 2 mi. W. of Laguna Beach Comment
  UCR227634  Eriogonum saxatile Robt. L. Allen 2003-6-22 12372 Orange Santa Ana Mountains, Modjeska Peak, southwestern arm, 0.6 air mi southwest of the summit 1512 Comment
  CAS-BOT-BC263020  Eriogonum thurberi John Thomas Howell 1927-6-6 2452 Orange Santa Ana River bottom, Santa Ana Canon [Canyon] 152 Comment
  HSC5622  Eriophyllum confertiflorum S. M. Clapp 1966-4-7 45 Orange 3 mi. from Modjeska Canyon towards Siverado Canyon 183 Comment
  UCSB47578  Eriophyllum confertiflorum Roberts, Fred 1980-4-3 Orange San Juan Canyon, Hwy. 74, bank across from entrance to Lower San Juan Picnic Ground, Santa Ana Mountains 410 Comment
  IRVC15140  Eriophyllum confertiflorum var. confertiflorum A. S. Boughey 1968-7-9 380403 Orange Santa Ana mtns: upper Santiago Canyon. Peninsular Ranges Comment
  IRVC15665  Eriophyllum confertiflorum var. confertiflorum A. S. Boughey, P. Pembrook 1965-6-18 1018 Orange Los Trancos Canyon at bottom, ; chaparral. San Joaquin Hills Comment
  RSA638972  Eriophyllum confertiflorum var. confertiflorum Valerie L. Soza, LeRoy Gross 1999-6-8 495 Orange Santa Ana Mountains: Santiago and Modjeska Canyons, above Tucker Wildlife Sanctuary, above the town of Modjeska 518 Comment
  UC1294014  Eriophyllum confertiflorum var. confertiflorum E. K. Balls 1958-6-27 23286 Orange Santiago-Mojeska Saddle Santa Ana Mts., Santiago-Mojeska Saddle 1463 Comment
  HSC8468  Erodium botrys S. M. Clapp 1966-4-9 36 Orange Entrance to Black Star Canyon 152 Comment
  SEINET10890419  Erodium botrys Greg Gust, Leith Nye 2005-3-12 Gust 566 Orange Cleveland National Forest, on Hwy 74 ca. 0.5 m W of county boundary with Riverside at a pullout. 401 Comment
  RSA12932  Erodium botrys E. R. Johnson 1935-4-8 6322 Orange 1 mile west of Atwood on South side of Railroad. Alt 300ft. Orange County Comment
  UCSB52457  Erodium botrys Fritzke, Sue; Roberts, Fred 1982-4-3 Orange Dana Point; hills; 1.0km N Dana Hills High School; 1.9km W Marco Forster Junior High School 30 Comment
  RSA680533  Erodium brachycarpum Scott D. White 2003-3-21 8804 Orange Santa Ana Mountain Foothills: Rancho Mission Viejo. East-facing slopes above an unnamed tributary to San Juan Creek. 122 Comment
  RSA653187  Erodium cicutarium David Barrios 1991-5-1 6 Orange Yorba Linda, 1500 ft. northwest of Fairmont Ave and Quail Circle. 366 Comment
  UCR100458  Erodium cicutarium B. G. Pitzer 1996-4-30 2765 Orange South Coast, Upper Newport Bay, Calif. Dept. Fish & Game Ecological Reserve, off (W of) Jamboree Road 6 Comment
  RSA562761  Erodium moschatum Steve Boyd, T. S. Ross 1992-5-19 7415 Orange Southern Santa Ana Mountains San Mateo Canyon Wilderness Area. Western edge of the wilderness along Lucas Canyon Trail from access road to Rancho Carrillo (7S06) N into Aliso Canyon,. 366 Comment
  UCR188898  Erythrina caffra Robert DeRuff 1985-1 103 Orange Southern Coast, Newport Beach, Upper Newport Back Bay, along the path from Mariners Drive to North Star Beach 30 Comment
  RSA722438  Eschscholzia californica Minor Warne 1934-03 s.n. Orange Laguna Canyon Forks Comment
  RSA722436  Eschscholzia californica Gray 1912-05 s.n. Orange El Modena. 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
  RSA312  Eschscholzia californica var. peninsularis J. T. Howell 1927-6-22 194 Orange Botany Garden, Rancho Santa Ana. Comment
  RSA66266  Eschscholzia californica var. peninsularis F. W. Peirson 1923-3-25 3375 Orange Aliso Creek, near Laguna Beach 91 Comment
  UCR237926  Eucalyptus camaldulensis Mark A. Elvin 2003-2-2 2280 Orange South Coast, San Joaquin Marsh, UCI campus SSE of intersection of Jamboree Blvd. and Campus Dr. 2 Comment
  SEINET6692539 Image available Eucalyptus camaldulensis var. camaldulensis A. C. Sanders, T. B. Salvato 2008-1 35370 Orange Peninsular Range; Santa Ana Mountains; Lomas de Santiago, Santiago Canyon above (S of) mouth of Hangman Tree Canyon, just below Modjeska Canyon confluence 366 Comment
  UCR193326  Eucalyptus camaldulensis var. camaldulensis A. C. Sanders, T. B. Salvato 2008-5-13 35370 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
  RSA0012603  Eucalyptus globulus D. B. Boatman 1969-3-16 6903161 Orange 1/2 mile E crossroads Newport Blvd. and Skyline Dr. Tustin. 91 Comment
  UCR197691  Eucalyptus sideroxylon A. C. Sanders, Fred M. Roberts 2008-9-18 36077 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge 330 Comment
  UCR162345  Eucalyptus utilis Robert DeRuff 2000-1 523 Orange Southern Coast, Newport Beach, Upper Newport Back Bay. Northerly side of upper Big Canyon c. half way between the beginning of the upper canyon and Jamboree Road 30 Comment
  UCR86018  Euphorbia Scott D. White 1992-11-24 974 Orange Vicintiy of Brea, immediately north of Carbon Canyon Road & east of Placentia Ave. 1 mi (airline) S/SE of Tonner Canyon. 183 Comment
  SD211599  Euphorbia Louis C. Wheeler 1946-8-8 6225 Orange Imperial Highway 1/4 mile West of Caroline Avenue, 2 miles East-Southeast of Brea Comment
  IRVC25150  Euphorbia albomarginata Fred M. Roberts 1986-9-3 3134 Orange adjacent to Anaheim, between Yorba Linda Regional Park and Imperial Hwy, Santa Ana River 88 Comment
  IRVC24273  Euphorbia albomarginata Fred M. Roberts, G. A. Marsh 1985-10-26 2527 Orange Santa Ana River: adjacent to Huntington Beach; 0.7km SSW Adams Street bridge. southern coastal 4 Comment
  POM9049  Euphorbia crenulata P. A. Munz 1920-4-25 3729 Orange Santa Ana Mountains, Silverado Canyon. 549 Comment
  RSA787624  Euphorbia dictyosperma Keith E. Hoffmaster 1935-5-5 625 Orange San Juan Canyon., Santa Ana Mts. Comment
  UCR218461  Euphorbia loricata Robert DeRuff 2008-1 571 Orange South Coast, Upper Newport Bay, north Eastbluff area, bluff c. 200 m from Eastbluff Drive 12 Comment
  RSA5354  Euphorbia misera B. D. Stark 1932-12-9 4425 Orange Dana Point Comment
  RSA734741  Euphorbia peplus L. C. Wheeler 1946-3-6 6173 Orange Newport Bay. Mainland north of east end of Balboa Island. 3 Comment
  SD152866  Euphorbia peplus Steve Boyd, Tim Ross 1992-5-19 7439 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness area. Western edge of wilderness in Lucas Canyon from crossing of creek by Lucas Canyon Trail, downstreem to confluence with Aliso Canyon (mak 1/06) 270 Comment
  RSA708284  Euphorbia polycarpa Scott D. White, Jennifer H. Jones 2005-3-31 10857 Orange South Coast: City of Laguna Beach. 549 Nyes Place. Proposed home site on ca. 0.5 acre. 91 Comment
  UCR192492  Euphorbia polycarpa A. C. Sanders, Fred M. Roberts 2008-3-25 34560 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  UCR193788B  Euphorbia polycarpa A. C. Sanders, Fred M. Roberts 2008-7-3 35692 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
  CDA1084  Euphorbia serpillifolia subsp. hirtula D. G. Kelch 2006-12-9 6 .534 Orange Along Newport Back Bay Dr. in side canyon. Comment
  RSA732155  Euphorbia spathulata A. C. Sanders, Fred M. Roberts 2008-4-22 35028 Orange Santa Ana Mtns.: Lomas de Santiago, Limestone Canyon, c. 2 miles SW of Silverado 1200 Comment
  SD255148  Euphorbia supina R. F. Thorne 1977-11-21 49992 Orange Santa Ana Mountains: San Juan Canyon ca. 2.0 miles above San Juan Fire Station. Comment
  IRVC21742  Euthamia occidentalis Fred M. Roberts 1984-10-18 1430 Orange San Juan Canyon, 2.5km ENE San Juan Guard Station; 4.0km WNW Sitton Peak, Santa Ana Mountains 310 Comment
  RSA234503  Euthamia occidentalis James Henrickson 1970-9-5 5343 Orange 3 miles NW of Huntinton Beach; NW of Bolsa Chica Salt Marsh. Sea level. 0 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
  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
  UCSB47619  Festuca myuros Roberts, Fred 1980-4-3 Orange Hills; 1.0km NE Dana Hills High School; Dana Point 75 Comment
  RSA0073644  Festuca octoflora var. octoflora Fred M. Roberts, Lee Ann Caranza, Eliza Maher 2009-4-7 7145 Orange South Coast Region: DANA POINT HEADLANDS: Dana Point CNLM Preserve, 0.8 km WNW Dana Point Marine Institute at Dana Point Harbor. 50 Comment
  UCR267214  Festuca octoflora var. octoflora Fred M. Roberts, Lee Ann Caranza & Eliza Maher 2009-4-7 7145 Orange South Coast Region, DANA POINT HEADLANDS: Dana Point CNLM Preserve, 0.8 km WNW Dana Point Marine Institute at Dana Point Harbor 50 Comment
  UCR158955  Ficus carica A. C. Sanders, Mark A. Elvin 2005-9-2 31606 Orange Santa Ana Mtns., Holy Jim Canyon, a major tributary of Trabuco Canyon, along the trail on the canyon bottom beyond the end of the road and above the last of the cabins 610 Comment
  IRVC29790  Ficus carica Mark A. Elvin, Dean Kelch 2006-12-9 5315 Orange Irvine; San Diego Creek, edge of San Joaquin Marsh, beside University Dr., between Campus Dr. and Hwy 73. Southern Coastal 3 Comment
  CAS-BOT-BC474734  Ficus microcarpa R. E. Riefner, Jr. 2015-8-27 15 -355 Orange City of Laguna Beach, S side of Beach St. E of Broadway Ave. (Hwy. 133) 7 Comment
  CAS-BOT-BC502072  Ficus microcarpa R. E. Riefner, Jr. 2015-8-27 15 -360 Orange City of Newport Beach, Corona del Mar, long Marguerite Ave., S of Fourth Ave. 41 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
  CAS-BOT-BC414247  Ficus rubiginosa R. E. Riefner, Jr. 2011-8-25 11 -119 Orange City of Laguna Beach, Aliso Creek Park, rocky and bluff between Aliso Beach Park and West St. 7 Comment
  RSA0013949  Filago arizonica Fred M. Roberts 2008-4-24 6928 Orange Lomas de Santiago: Loma Ridge, lower Hicks Cyn. 350 meters east of Haul Rd., 1.9 km E Rattlesnake Cyn. Reservoir dam and 2.1 km W Bee Peak. Irvine Ranch Conservancy. 180 Comment
  RSA649060  Filago arizonica D. E. Bramlet 2000-4-5 2941 A Orange Ridgeline above the 'MWD' canyon, approximately 1.7 km southwest of Irvine Park. This locality is found 610m southeast of Weir Canyon and 152m southeast of the MWD access road. 88 Comment
  RSA627759  Filago californica Scott D. White 1998-3-24 6229 Orange University of California, Irvine Campus: Site of proposed Research Park. Southwest of main campus circle, ca. halfway between Beerkeley Avenue and new freeway (Bonita Canyon). 36 Comment
  RSA736576  Filago californica Keith E. Hoffmaster 1935-4-14 597 Orange Trabuco creek., 1/4 mi. above CCC camp at Trabuco Oaks, Santa Ana Mts. 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
  UCR238211  Filago californica Mark A. Elvin 2003-3-30 2390 Orange South Coast, north side of UC Irvine Preserve, between core of UCI campus (E Peltason Dr.) and Hwy 73 69 Comment
  RSA542429  Filago gallica Bill O'Connell 1991-5-31 5 Orange San Joaquin Hills: Pelican Hill, west side 190 Comment
  RSA797822  Filago gallica R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49811 Orange Santa Ana Mountains: Trabuco Canyon Comment
  IRVC3699  Foeniculum vulgare L. McCabe 1965-5-8 Orange Corona del Mar]: Corona Highlands. [Newport Beach Comment
  UCSB48223  Foeniculum vulgare Roberts, Fred 1981-6-22 Orange Rancho Mission Viejo; Calif. Rte. 74, 5.2 km. ENE San Juan Capistrano by road 100 Comment
  CAS-BOT-BC63026  Frangula californica subsp. californica E. W. Lathrop 1974-6-27 7412 Orange 5 mi. e. of Trabuco Oaks, Trabuco Canyon, Cleveland Nat'l Forest. 396 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
  SBBG27470  Frangula californica subsp. cuspidata P. C. Everett 1935-6-18 Orange summit of Santiago Pk 1731 Comment
  RSA477  Frankenia grandifolia J. T. Howell 1927-6-30 248 Orange Bryant Ranch near Long Beach. 15 Comment
  LA205391  Frankenia salina Lawrence M. Booth; 1932-7-27 1324 Orange Newport Beach, Corona del Mar Comment
  RSA678748  Frankenia salina Valerie L. Soza, Kevin B. Clark, LeRoy Gross, Will Miller, Fred M. Roberts, Gary D. Wallace 2001-4-4 1104 Orange Seal Beach U. S. Naval Weapons Station, across access road from Nature Center (Bldg 226). 3 Comment
  RSA768507  Frankenia salina Justin M. Wood 2009-12-1 1394 Orange Santa Ana River: marsh just upstream of Pacific Coast Highway. 0 Comment
  RSA113855  Fraxinus dipetala E. K. Balls 1956-3-26 21464 Orange 0.5 miles below Silverado Motorway, W slope of Santa Ana Mts. 640 Comment
  UCR261699  Fraxinus dipetala Dick Newell, Judy Booth 2014-5-15 371 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, Maple Springs Rd./Silverado Canyon Rd., 0.87 road miles east of the lower Maple Springs gate 623 Comment
  UCR209378  Fritillaria biflora Fred M. Roberts, Linda Farley 2008-3-28 6822 Orange Santa Ana Mountains, Upper Weir Canyon, Irvine Ranch Conservancy, east fork along ridge just west of SR 241, 3.4 km east of Robber's Peak 457 Comment
  RSA652106  Fumaria officinalis Phil Goodwin 1948-2-6 s.n. Orange Found in an orchard 3 miles east of Orange. 122 Comment
  RSA539416  Funastrum cynanchoides var. hartwegii Fred M. Roberts, D. Willick 1988-9-16 4133 Orange Peralta Hills: Oak Canyon Nature Center, Upper Walnut Canyon, 1.1 km N Robbers Peak 177 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
  LA208397  Galium angustifolium Norman C. Cooper; 1944-6-4 Orange San Juan Canyon 304 Comment
  RSA679222  Galium angustifolium Fred M. Roberts 2003-6-25 5949 Orange Santa Ana Mountains: Mojeska Peak in Upper Cold Springs Cyn., north of Main divide Truck Trail, 0.4 km ESE summit. 1471 Comment
Read comments
Jan 12 2007
  SEINET272177  Galium angustifolium G. K. Helmkamp, E. A. Helmkamp 1997-4-24 1655 Orange Cleveland National Forest ; Cleveland National Forest. 1.6 mil. SE of Ortega Hwy (CA-74) on Rd. 7-S14. UTM 10km cell: MH-5E 1N. San Juan Hot Sprin 549 Comment
  UCR76745  Galium angustifolium B. G. Pitzer, Stu Hemstreet 1992-5-27 1961 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, along Forest Service Road 3S04 to Blue Jay Group Campground, off Hwy 74 (Ortega Hwy), c. 2 mi west of El Cariso Campground 765 Comment
  JEPS56094  Galium angustifolium subsp. angustifolium Lauramay T. Dempster and G. L. Stebbins 1967-3-21 4354 Orange along road from Pomono to Brea ca 1 mi sw Orange-San Bern. Co. line (s-facing hillside); Carbon Canyon Comment
  JEPS7865  Galium angustifolium subsp. angustifolium Lawrence M. Booth 1932-6-4 1252 Orange Newport Bay Comment
  POM18138  Galium angustifolium subsp. angustifolium Philip A. Munz 1923-9-7 7761 Orange Santa Ana Mts. Trail from Trabuco Canyon to summit. 1220 Comment
  POM367705  Galium angustifolium subsp. angustifolium Albert J. Perkins 1913-4-29 s.n. Orange Trabuco Canyon. Comment
  RSA749238  Galium angustifolium subsp. angustifolium Robert F. Thorne 1963-7-26 32825 Orange Trabuco District, Santa Ana Mts., Cleveland National Forest. 1159 Comment
  UCR227752  Galium angustifolium subsp. angustifolium R. F. Thorne 1963-7-26 32825 Orange Santa Ana Mountains, Cleveland National Forest, [vicinity of road from Beek's Spring to Pleasants Peak], Trabuco District 1159 Comment
  CDA42118  Galium catalinense Ahlefeld & Pope 1957-4-1 s.n. Orange Irvine Ranch. 0 Comment
  UCR191347  Galium porrigens A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34632 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
  UCR193262  Gamochaeta pensylvanica A. C. Sanders, Fred M. Roberts 2008-6-17 35523 Orange Peninsular Range; Santa Ana Mtns., middle section of Weir Canyon, SSE of Walnut Canyon Reservoir 230 Comment
  UCR190985  Gamochaeta stagnalis A. C. Sanders, Fred M. Roberts 2008-4-22 34993 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
  RSA608241  Garrya flavescens var. pallida Steve Boyd, Bart O'Brien 1998-1-13 10075 Orange Santa Ana Mountains: north end of the range, head of Tin Mine Canyon along Main Divide Road (3S04) ca. 1.8 mi south of Oak Flat. 884 Comment
  RSA39481  Gaura parviflora E. L. Paddock 1943-6-8 12730 Orange Whittier Road 1/4 mile west of Puente Street, Brea. Comment
  UCR242702  Gazania linearis Fred M. Roberts 2012-5-10 7580 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
  JEPS61411  Geranium carolinianum Alice King Apr 1908 Orange Santa Ana Mts. Comment
  RSA732063  Geranium carolinianum A. C. Sanders, Fred M. Roberts 2008-4-8 34754 Orange Peninsular Range; Lomas de Santiago, Loma Ridge, SSE of Santiago Reservoir on Loma Ridge Spur Rd., above Dripping Springs Loop Rd. 457 Comment
  RSA732157  Geranium carolinianum A. C. Sanders, Fred M. Roberts 2008-4-22 35031 Orange Santa Ana Mtns.: Lomas de Santiago, Limestone Canyon, c. 2 miles SW of Silverado. 1200 Comment
  CAS-BOT-BC229038  Geranium incanum var. multifidum R. E. Riefner, Jr. 2007-4-28 07 -189 Orange City of Newport Beach, Newport Bay, North Star Beach, vicinity of Morning Star Ln. 1 Comment
  RSA797017  Geranium incanum var. multifidum R. E. Riefner Jr. 2012-6-30 12 -285 Orange City of Costa Mesa, Talbert Regional Park, general vicinity of Balboa Boulevard and 19th Street. 5 Comment
  RSA797025  Geranium incanum var. multifidum R. E. Riefner Jr. 2012-6-16 12 -404 Orange City of Dana Point, Dana Point Harbor Drive at Island Way. 11 Comment
  POM10159  Gilia angelensis P. A. Munz, R. D. Harwood 1920-4-24 3766 Orange Santa Ana Mountains, Sierra [Freemont] Canyon 366 Comment
  RSA3189  Gilia angelensis C. B. Wolf 1932-3-8 2674 Orange 1/2 mile N of Corona del Mar, Newport Bay. 8 Comment
  RSA470122  Gilia angelensis Anstruther Davidson 1910-03 2474 Orange Corona Del Mar. Comment
  RSA636  Gilia angelensis J. T. Howell 1928-2-25 836 Orange Near Bee Canyon, Rancho Santa Ana. 152 Comment
  SD27976  Gilia angelensis Carl B. Wolf 1932-3-8 2674 Orange 0.5 mile north of Corona Del Mar; borders of Newport Bay. 7 Comment
  SEINET7073547  Gilia angelensis A. G. Vestal 1963-3-27 s.n. Orange Ridge above Cai+-ada Gobernadora. Coordinate datum: NAD27. Comment
  UCR237930  Gilia angelensis Dick Newell, Don Millar 2012-6-5 271 Orange Peninsular Range; Santa Ana Mtns., Loma Ridge East, 0.35 mi. due east of Hicks Haul Rd. 411 Comment
  CAS-BOT-BC94917  Gilia capitata subsp. abrotanifolia R. C. Wenk; P. Hopkinson; M. Hammond; P. Brownsey 2008-3-24 715 Orange Chino Hills S.P., S Ridge Road west of San Juan Hill, W of Equestrian Staging Area 441 Comment
  RSA548866  Gilia capitata subsp. abrotanifolia Fred M. Roberts, Carol A. Roberts 1988-6-2 4029 Orange Santa Ana Mountains: Silverado Canyon. Maple Springs Truck trail. 4.3 km above gate, 1.0 km WSW Bald Peak. 817 Comment
  IRVC9383  Gnaphalium bicolor B. T. Gittins 1966-3-30 1113 Orange Upper Newport Bay; slope base near salt ponds. Newport Beach Comment
  RSA696916  Gnaphalium californicum Mabel Harvey s.n. Orange Silverado Canyon Comment
  RSA590945  Gnaphalium californicum Fred M. Roberts 1991-5-2 4780 Orange San Joaqui Hills, Laguna Canyon, Laguna Laurel, Just W of Laguna Canyon Road, 2km N jct El Toro Road, 4.5km E Signal Peak. 110 Comment
  RSA734630  Gnaphalium luteoalbum A. C. Sanders, T. B. Salvato 2008-5-13 35358 Orange Lomas de Santiago, Santiago Canyon above (S of) mouth of Hangman Tree Canyon, just below Modjeska Canyon confluence 366 Comment
  RSA734646  Gnaphalium palustre A. C. Sanders, T. B. Salvato 2008-5-13 35360 Orange Lomas de Santiago, Santiago Canyon above (S of) mouth of Hangman Tree Canyon, just below Modjeska Canyon confluence 366 Comment
  CLARK-A1528-1859  Gnaphalium peregrinum John C. Roos 1965-6-16 Orange Dana Point Comment
  CDA21577  Gnaphalium stramineum Mark A. Elvin, Peter A. Bowler 2006-5-13 4861 Orange Southern Coastal; Irvine: San Joaquin Freshwater Marsh, near Campus and University Drives 1.7 kilometers (air) north-northwest UC Irvine Campus center. Comment
  IRVC23151  Gnaphalium stramineum Fred M. Roberts 1985-7-11 2021 Orange San Joaquin Hills: Laguna Canyon, Laguna Canyon Road near Laguna Lakes, 5.0km ENE Signal Peak. southern coastal 112 Comment
  UCR190987  Gnaphalium stramineum A. C. Sanders, Fred M. Roberts 2008-4-22 34991 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hicks Canyon haul road, just above Irvine Ranch gate and road to cement plant, c. 1 mile NE of Rattlesnake Reservoir 244 Comment
  RSA698232  Godetia bottae Kenneth Beard 1934-05 s.n. Orange Ladd Canyon. Comment
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Oct 31 2011
  SD60356  Grindelia camporum Peter H. Raven 1959-4-30 14038 Orange Base of ocean bluffs just north of San Clemente. Comment
  UCR52299  Grindelia camporum B. G. Pitzer, D. C. Hawks 1986-12-17 0382 A Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, on Santiago Cyn Rd., c. 1.0 mi SW of [Irvine Lake] Santiago Reservoir 305 Comment
  RSA1565  Grindelia camporum var. bracteosa J. T. Howell 1928-7-10 1093 Orange Trabucco Canyon, Santa Ana Mountains. 457 Comment
  SEINET179462  Grindelia camporum var. bracteosa L. M. Booth 1932-5-24 1092 Orange Newport Bay Comment
  CAS-BOT-BC305206  Grindelia hirsutula Carl B. Wolf 1932-7-2 3810 Orange Olinda. Valencia Ave., opposite Olinda Pilgrim Church 152 Comment
  HSC79615  Grindelia hirsutula James Henrickson 1972-10-21 8070 Orange Newport Beach, S of Jamboree Rd., E of Irvine Coast Country Club near U. C. Irvine 46 Comment
  UC455831  Grindelia hirsutula I. J. Condit 1908-7-25 Orange Huntington Beach Comment
  POM359185  Gutierrezia californica F. R. Fosberg 1931-6-21 749 Orange Lower Santiago Canyon. Comment
  RSA735171  Gutierrezia californica A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35288 Orange Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir. 300 Comment
  CAS-BOT-BC302139  Gutierrezia sarothrae L. R. Abrams 1901-6-1 1858 Orange El Toro Comment
  RSA403563  Hainardia cylindrica L. C. Wheeler 1932-6-25 851 Orange 1/2 mile N Newport Bay. 15 Comment
  RSA752819  Haplopappus menziesii A. C. Sanders, Fred M. Roberts 2008-8-7 35975 Orange lower Weir Canyon, at narrow gorge c. 0.6 mi. above mouth of cyn at Irvine Ranch gate. 185 Comment
  RSA743465  Hedera helix Fred M. Roberts, Carol A. Roberts 2008-9-28 7115 Orange Dana Point: Dana Point Headlands, CNLM Preserve, near Strands Road Gate, 0.8km WNW Marine Institute, Dana Point Harbor. 65 Comment
  RSA134384  Hedypnois cretica C. Epling 1943-3-27 s.n. Orange S of Sunset Beach. Comment
  RSA602118  Hedypnois cretica Scott D. White 1997-5-6 5045 Orange Santa Ana Mountains. Santiago Canyon area: Ridgetop road N and W of Bolero Lookout. 427 Comment
  RSA732000  Hedypnois cretica A. C. Sanders, Fred M. Roberts 2008-4-22 35059 Orange Penisular Range; Lomas de Santiago, Loma Ridge c. 1/4 mi. SE of VABM Bee, above Bee Canyon landfill on road from Hicks Canyon Haul Rd. to Limestone Canyon. c. 3.5 mi. WSW of Silverado. 493 Comment
  CAS-BOT-BC306303  Hedypnois cretica E. K. Balls 1955-4-4 20433 Orange Mouth of Santa Ana River, w. bank, Hwy. 101 3 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
  IRVC20494  Helianthemum scoparium var. vulgare Fred M. Roberts 1983-5-4 1029 Orange Temple Hill, Upper Rancho Laguna Canyon, 1.7km SSW Top of the World Sch.; 1.4km ENE Cactus Point, Laguna Beach 200 Comment
  RSA725463  Helianthus annuus Fred M. Roberts 2007-8-6 6554 Orange San Joaquin Hills: Laguna Beach, Laguna Cyn. on east side of Laguna Cyn. Rd. adj. to dog park, 1.2 km S (air) from El Toro Road and 1.8 km WSW Moulton Survey Mk. 52 Comment
  RSA697136  Helianthus annuus Anonymous s.n. Orange Santa Ana 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
  RSA573299  Helianthus gracilentus Steve Boyd, T. S. Ross 1994-9-14 8356 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. Comment
  RSA7440  Helianthus gracilentus C. B. Wolf 1933-8-24 5388 Orange Summit of Santiago Peak, Santa Ana Mountains. 1707 Comment
  HSC94287  Helianthus niveus subsp. canescens D. Atwood 1993-3-27 17701 Orange Corona Del Mar State Park along Newport Coast Drive. 0 Comment
  UC480651  Heliotropium curassavicum Louis C. Wheeler 1931-8-16 Orange Santa Ana R. Canyon 152 Comment
  RSA0037205  Heliotropium curassavicum Darren Day, Hal Willis 1984-5-17 025 Orange This plant was found growing 2.3 miles outside of the city of Laguna Beach, on Laguna Canyon Rd. heading north, on the east side of the road. Comment
  RSA77876  Heliotropium curassavicum var. oculatum F. W. Peirson 1924-8-29 5077 Orange 3 miles from Balboa Beach. 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
  RSA30668  Hemizonia australis L. C. Wheeler 1932-6-25 849 Orange 5 miles west of Santa Ana. 22 Comment
  RSA539398  Hemizonia australis D. E. Bramlet 1990-11-3 2064 Orange W side Upper Newport Back Bay, ca 50 m NW of the Delhi channel. Population ca 100 m SE of end of University Dr. 23 Comment
  IRVC20825  Hemizonia fasciculata Fred M. Roberts 1982-7-30 785 Orange Niguel Hill, 0.9km ENE Aliso Peak, Laguna Niguel 260 Comment
  POM5000  Hemizonia fasciculata H. M. Hall 1906-6-19 7411 Orange Gypsum, Santa Ana Canyon 122 Comment
Read comments
Sep 4 2011
  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
  UCR193760  Hemizonia fasciculata A. C. Sanders, Fred M. Roberts 2008-7-3 35705 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
  RSA0001299  Hemizonia parryi subsp. australis D. D. Keck 1933-9-29 2537 Orange Seal beach. Comment
  POM2134  Hesperocnide tenella D. L. Crawford 1916-07 1959 Orange Near Laguna Comment
  RSA562744  Hesperocnide tenella Steve D. Boyd, Tim S. Ross 1992-5-19 7440 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of the wilderness in Lucas Canyon from crossing the creek by Lucas Canyon Trail, downstream to confluence with Aliso Canyon. 274 Comment
  RSA735027  Hesperocnide tenella Scott D. White, Justin M. Wood 2008-4-10 11847 Orange Chino Hills: Powerline access road just N of CHSP boundary and just W of Orange/SB co. line. Approx. 1 mi. NW of Gilman Peak. 366 Comment
  UCSB52949  Hesperocnide tenella Roberts, Fred; Allen, R. 1983-3-27 Orange Dana Point Headlands: above Dana Strand Beach, 0.9km W Dana Point Harbor; 1.0km SW Richard Henry Dana School 40 Comment
  UCR232761  Hesperolinon micranthum Robt. L. Allen, Christopher M. Barnhill, Dylan Hannon 2005-5-7 12515 Orange Peninsular Range; Santa Ana Mtns., Coal Canyon, upper region above old mining area, southeast of utility road that runs on ridge between Coal and Gypsum canyons 525 Comment
  CAS-BOT-BC167001  Heteromeles arbutifolia T. B. Salvato 2010-10-27 5138 Orange South Coast: Dana Point Headlands, Hilltop Park, north of Scenic Dr. and west of Green Lantern St., overlooking Dana Point Harbor 84 Comment
  UC860401  Heteromeles arbutifolia C. B. Wolf and B. D. Stark 1932-12-19 4430 A Orange 1/2 mi from Skyline Drive on Firebreak Road to Sierra Peak (Santa Ana Mountains); , Firebreak Road 762 Comment
  UCSB47998  Heteromeles arbutifolia Roberts, Fred 1980-7-7 Orange Santa Ana Mtns., San Juan Canyon, Hwy 74, 2.4km ENE San Juan Guard Station; 0.3km W Bench Mark 1100 345 Comment
  HSC5823  Heterotheca grandiflora J. W. Johnson 1961-3-29 Orange Newport Beach, N slope overlooking upper Newport Bay Comment
  IRVC796  Heterotheca grandiflora B. Newman 1965-3-14 Orange Dana Point Comment
  RSA0075823  Heterotheca grandiflora Fred M. Roberts, David E. Bramlet 2003-6-20 5919 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, tributary to Cristianitos Cyn., along Back Road, 1.48 km WNW Sycamore Gate. 189 Comment
  UC912305  Heterotheca grandiflora Herbert L. Mason 1926-4-25 2901 Orange 5 mi s Laguna Comment
  UCR223954  Heterotheca grandiflora Fred M. Roberts, Carol A. Roberts 2008-9-28 7110 Orange South Coast, Dana Point, Dana Point Headlands, CNLM Preserve near northeast Gate, 0.5 km west Marine Institute, Dana Point Harbor 75 Comment
  UCSB44177  Heterotheca grandiflora Henneman, J. 1977-5-21 Orange Newport Back Bay 6 Comment
  IRVC792  Heterotheca grandiflora Anonymous 1965-4-29 Orange Santa Ana Canyon Comment
  RSA0075810  Heterotheca grandiflora Minor Warne 1934-5-12 s.n. Orange Newport Bluffs. Comment
  RSA0075811  Heterotheca grandiflora J. T. Howell 1927-9-24 747 Orange Hill tops north of Botany Garden, Rancho Santa Ana. 274 Comment
  RSA749682  Heterotheca sessiliflora A. C. Sanders, Fred M. Roberts 2008-7-16 35848 Orange Lomas de Santiago, Limestone Canyon 325 Comment
  RSA539418  Heterotheca sessiliflora subsp. echioides Fred M. Roberts, D. Willick 1988-9-16 4135 Orange Peralta Hills: Oak Canyon Nature Center, Upper Walnut Canyon, 1.1 km N Robbers Peak 177 Comment
  RSA812  Heterotheca sessiliflora subsp. echioides J. T. Howell 1927-9-24 744 Orange Santa Ana River Bottom, Rancho Santa Ana 152 Comment
  UC537029  Heterotheca sessiliflora subsp. echioides Lawrence M. Booth 1932-7-29 1330 Orange Newport Lagoon Comment
  RSA93359  Heterotheca sessiliflora subsp. echioides F. W. Peirson 1924-8-29 5086 Orange 2.5 miles from Balboa on road inland along creek. Comment
  RSA759252  Hibiscus trionum Robt. Allen, Reginald Durant 2008-5-16 s.n. Orange Modjeska Peak, N face, along access road up Modjeska Peak, outside the sharp bend in the extreme end of the road. Survey Point #47. 1514 Comment
  RSA759278  Hibiscus trionum Robt. Allen 2008-4-9 s.n. Orange Irvine, Irvine Valley College, near NE corner of student Services building. 45 Comment
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Aug 2 2019
  UCD150984  Hieracium argutum D. S. Park 2010-4-25 29 Orange Whiting Ranch Wilderness Park, along trail. Open, disturbed areas. 254 Comment
  CAS-BOT-BC55404  Hirschfeldia incana Alice Eastwood 1936-4-5 s.n. Orange Santa Ana. Bixby Botanic Garden. Comment
  POM348811  Hoita macrostachya M. B. Dunkle 1934-6-18 3988 Orange San Juan Canyon, Southern Coastal. 305 Comment
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Oct 3 2011
  IRVC19365  Hoita macrostachya R. L. Allen Jul 1977 s.n. Orange Santa Ana Mountains; [San Juan Canyon], Ortega Hwy, road side 111. Peninsular Ranges Comment
  IRVC18680  Hoita orbicularis Karlin G. Marsh 1981-5-1 s.n. Orange Main Divide [Truck] Trail above Maple Springs. Santa Ana Mountains 1341 Comment
  RSA2919  Holodiscus discolor B. D. Stark 1931-6-10 2248 Orange east fork of Claymine Canyon, north end of Santa Ana Mts 305 Comment
  SD40737  Holodiscus discolor E. R. Johnson 1933-6-22 5000 Orange Rancho Santa Ana, Santa Ana Canyon, NW corner of ranch, 1/4 Mi. E, 1/2 mi. S 305 Comment
  CAS-BOT-BC150003  Holodiscus discolor var. discolor B. D. Stark 1931-6-10 2248 Orange East fork of Claymine Canyon, north end of Santa Ana Mountains 304 Comment
  RSA12282  Hordeum brachyantherum C. B. Wolf 1934-4-11 5657 Orange Bryant Ranch, east of Long Beach, along Bixby Ave., 0.5 mile west of Hansen Rd. 100 ft N of fence 8 Comment
  RSA728662  Hordeum brachyantherum R. E. Riefner 2002-5-4 2 -101 Orange City of Laguna Beach, Moulton Meadows Park, near Balboa Ave., and Del Mar Ave. 254 Comment
  UCSB48055  Hordeum depressum Fritzke, Sue; Roberts, Fred 1982-4-3 Orange Hills in Dana Point, 1.0km N Dana Hills High School; 1.9km W Marco Forster Junior High 100 Comment
  RSA651784  Hordeum leporinum Bob Edwards 1948-5-14 s.n. Orange Found on vacant lot in Orange. 59 Comment
  RSA708233  Hordeum marinum subsp. gussoneanum Fred M. Roberts, Robert L. Allen, Chris Barnhill, Nancy Hatfield 2005-4-10 6156 Orange Costa Mesa: Fairview Park, west of north end of Canyon Drive, c.a. 0.2km WNW Marison Special Education Center (Canyon Sch. on topos). 24 Comment
  HSC94292  Hordeum murinum subsp. murinum D. Atwood 1993-3-28 17710 Orange Bolsa Chica Ecological Reserve, California Dept. of Fish and Game. 0 Comment
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Jul 8 2010
  POM224742  Horkelia cuneata subsp. puberula Philip A. Munz 1936-4-20 14606 Orange Laguna Beach, Mt. Olympus 152 Comment
  UCR263677  Horkelia cuneata var. cuneata Mark A. Elvin 2001-4-8 1554 Orange South Coast, South San Clemente, west of I-5, SE of Avenida Califa 37 Comment
  UCR256940  Horkelia cuneata var. puberula Naomi Fraga, Duncan S. Bell 2009-5-11 2720 Orange Peninsular Range; Santa Ana Mountains, Chiquita Trail, Lion Canyon 762 Comment
  RSA792565  Hornungia procumbens Justin M. Wood 2011-2-28 3272 Orange South Coast: Santa Ana River, marsh just upstream of Pacific Coast Highway. Plants collected throughout the marsh and along the adjacent bike path. 0 Comment
  CAS-BOT-BC55487  Hornungia procumbens Helen D. Geis 1902-3-21 s.n. Orange Balsa Chica. Comment
  RSA526  Hydrocotyle umbellata J. T. Howell 1927-8-13 624 Orange Santa Ana River Bottom 152 Comment
  RSA699285  Hydrocotyle umbellata J. R. Bruff 1930-10 s.n. Orange Santa Ana River, 1st Street. Comment
  RSA527  Hydrocotyle verticillata J. T. Howell 1927-7-5 273 Orange West side, Rancho Santa Ana [Botanic Garden]. 152 Comment
  OBI74741  Hypericum canariense Unknown 2010-6-9 Oct- 52 Orange City of San Juan Capistrano, along McKraken View Trl at San Juan Crk rd, E of I-5 fwy 51 Comment
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May 28 2015
  RSA789230  Hypochaeris glabra Naomi Fraga, Duncan S. Bell 2009-5-11 2711 Orange San Juan loop trail, Cleveland National Forest just west of Sugarloaf Spur Trail. 912 Comment
  UC1543186  Hypochaeris glabra Donald G. Nelson 1935-4-6 234 Orange e San Juan Capistrano; Cleveland National Forest Comment
  UCR192470  Hypochaeris glabra A. C. Sanders, Fred M. Roberts 2008-3-25 34538 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  IRVC26523  Hypochaeris radicata Mark A. Elvin 2004-2-22 3148 Orange UCI Arboretum Southern Coastal 15 Comment
  SD247408  Ipomoea cairica R. E. Riefner Jr. 2012-11-27 12 563 Orange City of Laguna Beach, Southe Crescent Beach, Circly Way near Cliff Drive. 3 Comment
  IRVC996  Ipomoea mutabilis McGuire 1965-5-10 Orange Corona del Mar. Newport Beach Comment
  IRVC992  Ipomoea purpurea B. Van Gorden 1965-3-8 Orange 2212 Meyer Place. Costa Mesa Comment
  RSA638196  Isocoma menziesii Scott D. White 1998-10-19 7190 Orange Yorba Linda: Dissected south and SW-facing foothill slope ca. 1/2 mi S of Telegraph Cyn. Between Ohio St. and Fairmont. Proposed for development. 152 Comment
  CAS-BOT-BC311671  Isocoma menziesii var. sedoides David D. Keck 1932-9-30 1902 Orange 2 mi. W. of Laguna Beach Comment
  UC1543132  Isocoma menziesii var. sedoides Donald G. Nelson 1935-6-27 332 Orange beaches s Corona del Mar (s of mouth of Newport Bay, on bluffs facing ocean) Comment
  CAS-BOT-BC311656  Isocoma menziesii var. vernonioides David D. Keck 1932-9-30 1906 Orange Dana Point, near San Juan Capistrano Comment
  OBI41038  Isocoma menziesii var. vernonioides Melissa Thorme 1983-11-23 18 Orange Southern most housing tract in Corona Del Mar Comment
  POM147499  Isocoma menziesii var. vernonioides F. M. Reed 1928-4-27 5701 Orange Between Laguna and Newport. Comment
  POM4760  Isocoma menziesii var. vernonioides P. A. Munz 1918-5-18 2189 Orange Bluffs along coast Laguna. Comment
  UC892011  Isocoma menziesii var. vernonioides Carl B. Wolf 1932-6-28 3807 Orange on Bixby Ave; Bryant Ranch 91 Comment
  IRVC9272  Isomeris arborea B. T. Gittins 1963-5-24 247248 Orange Newport Bay, beside road near salt ponds. Newport Beach Comment
  IRVC9274  Isomeris arborea B. T. Gittins 1963-5-24 247248 Orange Newport Bay, beside road near salt ponds. Newport Beach Comment
  RSA702688  Isomeris arborea Scott D. White, Michael Honer 2004-5-17 10395 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
  CLARK-A1528-1975  Jaumea carnosa John C. Roos 1949-10-1 4682 Orange Doheney Beach Comment
  RSA703682  Jepsonia parryi Fred M. Roberts, D. E. Bramlet 2004-11-5 6127 Orange Rancho Mission Viejo: Donna O Neill Land Conservancy, west slopes of Cristianitos Cyn., 0.79 km N Sycamore Gate and 0.18 km W Cristianitos Road. 146 Comment
  UCR93338  Jepsonia parryi G. R. Ballmer 1994-11-16 s.n. Orange Peninsular Range; Santa Ana Mtns., Ortega Hwy in vicinity (W of) of National Forest boundary 250 Comment
  CAS-BOT-BC101917  Juglans californica John Thomas Howell 1927-7-27 2847 Orange Hills on n. side of Santa Ana [Canon] Canyon 152 Comment
  UCR229282  Juglans californica R. E. Riefner Jr. 2011-8-25 11- 113 Orange Trabuco Canyon, Trabuco Canyon Road c. 1 mi northwest of O'Neill Regional Park 319 Comment
  RSA0011060  Juglans californica Mark Breidenbaugh, Caralisa Breidenbaugh 1992-5-24 59 Orange 1000 ft. north of Chino Hills State Park Boundary 229 Comment
  RSA0011061  Juglans californica I. L. Wiggins 1965-5-27 20310 Orange Near Los Angeles County Line, along Brea Canyon Road. Comment
  UCR246398  Juglans hindsii R. E. Riefner Jr. 2010-9-8 10- 121 Orange South Coast, city of Laguna Beach, Laguna Canyon, c. 0.15 mi south of El Toro Road on east side of Laguna Canyon Road 75 Comment
  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
  RSA0011199  Juglans nigra A. C. Sanders, Fred M. Roberts 2008-6-17 35477 Orange Peninsular Range; Santa Ana Mtns: Lomas de Santiago, Augustine staging area near Limestone Canyon Rd. gate at Santiago Cyn Rd. 260 Comment
  RSA22739  Juglans regia Carl B. Wolf 1939-11-29 9545 Orange Orange County Picnic Grounds, Comment
  RSA795706  Juncus W. R. Ferren 1991-12-4 EPA- 18 Orange Cook Creek, tributary to Aliso Creek, San Juan Capistrano. Comment
  RSA795708  Juncus W. R. Ferren 1991-12-2 EPA- 18 Orange Cook Creek, tributary to Aliso Creek, San Juan Capistrano. Comment
  RSA683232  Juncus acutus Scott D. White, Matt Carlton 2003-11-20 9861 Orange Santa Ana Mountain foothills; San Juan Creek in San Juan Capistrano; (Dana Point) 24 Comment
  OBI2855  Juncus acutus subsp. leopoldii L. Neuenschwander 1970-8-20 63 Orange Ca. 4 mi S of Seal Beach, NE of Pacific Coast hwy at Bolsa Chica Salt marsh 0 Comment
  UC1280019  Juncus acutus subsp. leopoldii Peter H. Raven 1957-9-28 11401 Orange just n Huntington Beach 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
  UC536959  Juncus ambiguus Lawrence M. Booth 1932-5-24 1088 Orange Newport Bay Comment
  RSA734913  Juncus bufonius A. C. Sanders, Mitch Provance 2008-5-20 34520 Orange Lomas de Santiago area, Santiago Creek Canyon, c. 3/4 mile below Modjeska Canyon confluence 345 Comment
  UCR193498  Juncus bufonius var. congestus A. C. Sanders, T. B. Salvato 2008-5-13 35381 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
  RSA788970  Juncus macrophyllus Robert F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49575 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74) Comment
  SD245183  Juncus macrophyllus R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49575 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74). Comment
  RSA543966  Juncus patens Steve Boyd, Orlando Mistretta 1991-5-9 6197 Orange Crest of range at Oak Flat, SE of Sierra Peak, just West of Riverside County Line. 793 Comment
  RSA50307  Juncus phaeocephalus var. paniculatus E. K. Balls 1949-6-6 13467 -A Orange [Rancho Santa Ana] Botanic Garden, Santa Ana River Canyon. 198 Comment
  CAS-BOT-BC227115  Juncus textilis A. C. Sanders; Fred M. Roberts 2008-7-16 35855 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago, upper Hangman's Tree Canyon 395 Comment
  POM201725  Juncus textilis L. M. Booth 1932-6-7 1159 Orange Newport Lagoon. Comment
  SEINET3282755 Image available Juncus textilis A. C. Sanders, Fred M. Roberts 2008-7-16 35855 Orange Peninsular Range; Santa Ana Mtns.; Lomas de Santiago, upper Hangmans Tree Canyon. 395 Comment
  SEINET3881136  Juncus textilis A. C. Sanders, Fred M. Roberts 2008-7-16 35855 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago, upper Hangmans Tree Canyon (El Toro 7.5').; 0 395 Comment
  UCR18360  Juncus textilis O. F. Clarke, Ileana Leil, Robert Lumley (park foreman) 1977-11-12 s.n. Orange Brea-Olinda Regional Wilderness Park, south of Brea. Small, moist canyon near the center of the park Comment
  UC520018  Juncus xiphioides Joseph Andorfer Ewan 1932-7-9 7484 Orange 4 mi below Rincon (Prado); Santa Ana River Comment
  UCR193765  Juncus xiphioides A. C. Sanders, Fred M. Roberts 2008-7-3 35704 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
  RSA293253  Keckiella antirrhinoides D. C. Michener 1980-6-5 3668 Orange San Juan River valley. 300 Comment
  UC1063326  Keckiella antirrhinoides A. Lewis Mar 1934 340 Orange Santa Ana Canyon; Corona Quad. 152 Comment
  CAS-BOT-BC235531  Keckiella antirrhinoides var. antirrhinoides Helen D. Geis 1904-5-1 735 Orange Silverado Canon [Canyon], Santa Ana Mountains 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
  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
  RSA791873  Keckiella cordifolia Robert F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49620 Orange Santa Ana Mountains: about 1 mile above San Juan Fire Station 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
  RSA718970  Kickxia elatine Fred M. Roberts, Robert L. Allen 2006-10-8 6410 Orange San Juan Capistrano: San Juan Creek Flood Control Channel, c.a. 0.2 to 0.3km N Stonehill Dr. bridge and 1.1km SSE Marco Forster Jr. High Sch. 4 Comment
  RSA80422  Kickxia elatine F. W. Peirson 1927-9-25 7676 Orange in flats below Wintersberg. Comment
  RSA184078  Kochia scoparia I. L. Wiggins 1966-4-3 20576 Orange Railroad embankment near entrance to Rancho Santa Ana. Comment
  UCR192451  Koeleria macrantha A. C. Sanders, Fred M. Roberts 2008-3-25 34579 Orange Peninsular Range; Santa Ana Mtns., saddle on ridge near head of Weir Canyon, 5.3 miles ENE of Villa Park, 3.1 mi. N of (Santiago Reservoir) Irvine Lake 405 Comment
  RSA725959  Koelreuteria bipinnata T. B. Salvato, Katie Kurtz, Mitch Provance 2006-10-15 1903 Orange South Coast: Irvine, San Diego Creek flood control channel, between Campus Drive and Michelson Drive. 6 Comment
  UCR181157  Koelreuteria bipinnata R. E. Riefner Jr. 2006-11-14 06- 673 Orange South Coast, Irvine, along San Diego Creek at Campus Avenue and University Drive 4 Comment
  UCR236678  Koelreuteria paniculata Fred M. Roberts, Sandra L. Leatherman 2008-9-17 7100 Orange Peninsular Ranges, Yorba Linda: Santa Ana River Canyon, Santa Ana River, 0.7 km W Gypsum Cyn. Rd. bridge, south of La Palma Ave. 107 Comment
  CAS-BOT-BC340503  Lactuca serriola Ira L. Wiggins 1965-10-24 20288 Orange At corner of Yorba Linda and State College Blvd., Fullerton Comment
  IRVC21694  Lactuca serriola Fred M. Roberts 1984-8-2 1365 Orange UC Irvine, along Adobe Circle Raod, 0.9km ENE campus center; 2.3km W French Hill, Irvine 30 Comment
  RSA5937  Lactuca serriola C. B. Wolf 1932-7-7 3839 Orange Bryant Ranch, along drainage ditch on Bixby Ave.; 100 ft. W. of Hansen Rd.; 100 ft W of corner of NE 1/4 9 Comment
  SD80932  Laennecia coulteri James Henrickson 1970-8-22 5297 Orange Bolsa Chica Salt Marsh,dry northern portion, 2.5 miles northnorthwest of Huntington Beach Comment
  UC303536  Laennecia coulteri I. M. Johnston 1918-9-3 2148 Orange ground about lakes Laguna Canyon; Upper Sonoran Zone, San Joachin Hills, Laguna Canyon 106 Comment
  RSA699157  Lamarckia aurea Rankin s.n. Orange Newport Beach. Comment
  SEINET2065733 Image available Lamium amplexicaule J. Harry Lehr 1973-4-21 909 Orange East Santa Anna St. W of State College Blvd, Anaheim 16 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
  UCR166703  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 c. 0.5 acre. 91 Comment
  RSA0040039  Lantana camara Anonymous 1933-10-13 s.n. Orange Santa Ana. Comment
  CAS-BOT-BC338907  Lasthenia californica Frank W. Peirson 1925-4-11 5746 Orange 5 miles south of Laguna Beach Comment
  IRVC25402  Lasthenia californica Fred M. Roberts 1987-4-3 3335 Orange San Joaquin Hills; Irvine; central Shady Canyon, 2.9km NE Signal Hill. Central coastal 107 Comment
  RSA12280  Lasthenia glabrata subsp. coulteri C. B. Wolf 1934-4-11 5655 Orange Bryant Ranch, east of Long Beach, along Bixby Ave., 0.5 mile west of Hansen Rd. 100 ft N of fence 8 Comment
  SD73477  Lasthenia glabrata subsp. coulteri C. B. Wolf 1935-3-24 6295 Orange 1.0 mile north of Buena Park. Comment
  RSA0039565  Lasthenia glabrata subsp. coulteri R. H. McArthur 1934-3-8 s.n Orange S. of Ed Martin's Airport. Comment
  RSA0035853  Lasthenia glabrata subsp. glabrata R. E. Riefner Jr. 2012-5-5 12 -85 Orange city of San Clement, Antonio Parkway, c. 0.25 mi north of Hwy 74 88 Comment
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Apr 7 2021
  UCR240171  Lasthenia glabrata subsp. glabrata R. E. Riefner Jr. 2012-5-5 12- 85 Orange South Coast, city of San Clement, Antonio Parkway, c. 0.25 mi north of Hwy 74 88 Comment
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Apr 7 2021
  UC149282  Lasthenia gracilis LeRoy Abrams 1903-4-18 3265 Orange near Capistrano; Trabuco arroyo Comment
  UCR106311  Lasthenia gracilis B. G. Pitzer, M. Georgiady 1997-4-5 3095 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
  RSA0010308  Lasthenia gracilis J. D. Olmsted 1959-4-23 467 Orange Hidden Ranch in Black Star Canyon, 5 miles east of Irvine Lake. Drainage area to Irvine Res[ervoir]; Mt. Range: Santa Ana Mountains. 640 Comment
  SFV16517  Lathyrus hirsutus S. Mason, P. Rector 1993-4-16 s. n. Orange Santa Ana Mountains CA State Highway 74 at Lower San Juan Campground. Adjacent to campground sign on southeast side of road. 396 Comment
  RSA657213  Lathyrus latifolius Steve Teh, Marie Gabbard 1994-4-28 20 Orange Modjeska Grade Rd. 2/3 mile back on fire rd. Comment
  SEINET956187  Lathyrus strictus P. C. Everett 1935-1 6292 Orange Santa Ana Mts. Baker Canyon, West Ladd Truck Trail. 1000 Comment
  POM177820  Lavatera assurgentiflora subsp. assurgentiflora Marcus E. Jones 1930-2-2 2654 -I Orange Laguna, Marine Station. Comment
  RSA35462  Lavatera assurgentiflora subsp. assurgentiflora Emily M. Bradford 1904-3-6 s.n. Orange Ocean Park Comment
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Sep 13 2013
  RSA699674  Layia platyglossa Keith E. Hoffmaster 1935-4-19 s.n. Orange Santiago can. near Silverado ca., Santa Ana Mountains. Comment
  UC1543193  Layia platyglossa Donald G. Nelson 1935-3-30 196 Orange near mouth Brea Canyon (n of Brea, on Tonner Lease, in northern part of county); on Tonner Lease Comment
  RSA550587  Layia platyglossa subsp. campestris Fred M. Roberts 1989-4-26 4323 Orange Santa Ana Mtns: lower Blind Canyon near mouth, 9.2km SW Sierra Peak, 1km N Irvine Lake spillway. 210 Comment
  RSA705543  Leersia oryzoides R. E. Riefner Jr. 2003-12-14 3 -458 Orange Featherly Regional Park, Santa Ana River, vicinity of La Palma Avenue and Lomas de Yorba West, S of Gypsum Canyon Road. 105 Comment
  RSA724037  Leersia oryzoides R. E. Riefner 2004-9-18 4 -425 Orange City of Yorba Linda; Santa Ana River, Horseshoe Bend, near La Palma Rd. and Via Del Rio Rd. 105 Comment
  CAS-BOT-BC221603  Lepechinia cardiophylla John Thomas Howell 1927-6-26 2606 Orange Claymine Canyon, northern Santa Ana Mts. 609 Comment
  RSA171015  Lepechinia cardiophylla Robert F. Thorne 1963-7-26 32853 Orange Tin Mine Canyon above Beek s Spring, Trabuco District, Cleveland National Forest. 732 Comment
  UCR203897  Lepechinia cardiophylla R. E. Riefner Jr. 2008-3-21 08- 59 Orange Santa Ana Mountains, Irvine Ranch Reserve, Fremont Canyon Conservation Easement, west Fremont Canyon, Windy Ridge south to west fork canyon 463 Comment
  UCR231204  Lepechinia cardiophylla A. C. Sanders, T. B. Salvato, Kent Beaman 2011-11-3 39942 Orange Peninsular Range; Santa Ana Mtns., near Pleasants Peak along the Main Divide Truck Trail 1143 Comment
  RSA741724  Lepechinia cardiophylla R. E. Riefner Jr. 2008-6-12 8 -152 Orange Irvine Ranch Reserve, Fremont Canyon Conservation Easement, W Fremont Canyon, Windy Ridge S to W fork canyon habitat. 515 Comment
  CAS-BOT-BC89063  Lepidium didymum Scott D. White 1998-3-24 6227 Orange University of California Irvine Campus. Site of proposed Research Park, southwest of main campus circle. 48 Comment
  POM183942  Lepidium lasiocarpum P. A. Munz 1932-3-29 12191 Orange Costa Mesa. Comment
  RSA682597  Lepidium lasiocarpum Scott D. White, Amanda Duchardt 2003-3-27 8861 Orange Canyon bottom and west facing slopes above Canada Gobernadora. 91 Comment
  RSA697452  Lepidium lasiocarpum Snow 1929-2-20 15 Orange Roadside-Dana Pt. Comment
  UC494728  Lepidium lasiocarpum var. lasiocarpum Philip A. Munz 1932-3-29 12191 Orange Costa Mesa Comment
  SD27974  Lepidium nitidum Carl B. Wolf 1932-3-8 2683 Orange 1/2 mile north of Corona Del Mar, Borders of Newport Bay 7 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
  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
  OBI70646  Lepidium pinnatifidum Louis C. Wheeler 1947-5-4 6476 Orange 4.5 mi S of Santa Ana: South Main Street extension, 0.8 mi S of Newport Ave Comment
  UCSB59357  Lepidium pinnatifidum Roberts, Jr., Fred 1987-7-8 Orange Irvine; San Diego Creek near San Diego Fwy. crossing, 3.2 km. N UC Irvine campus center; UTM 3726200m N, 422500m E 5 Comment
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Nov 17 2018
  RSA328  Lepidium virginicum var. pubescens J. T. Howell 1927-6-21 175 Orange Near ranch houses, Rancho Santa Ana. 152 Comment
  POM50054  Lepidospartum squamatum Helen D. Geis 1902-1 576 Orange Santiago Canyon. Comment
  SD127550  Lepidospartum squamatum Reid Moran 1975-11-21 22741 Orange Bottom of lower Trabuco Canyon, Santa Ana Mts. Comment
  UCR240094  Lepidospartum squamatum Dick Newell, Judy Booth 2012-11-11 309 Orange Peninsular Range; Santa Ana Mtns., Irvine, just east of eastern edge of Irvine Regional Park, east of Peters Canyon Rd. 189 Comment
  CAS-BOT-BC274018  Leptochloa fusca subsp. uninervia Peter H. Raven 1961-10-15 16851 Orange Santa Ana River Bed at Anaheim Street crossing, Anaheim 60 Comment
  UCD63972  Leptochloa fusca subsp. uninervia Beecher Crampton 1965-10-27 7581 Orange 2 mi. east of Irvine, Irvine Blvd. Comment
  RSA734967  Leptodactylon californicum A. C. Sanders, Fred M. Roberts, A. O'Neal, D. E. Bramlet 2008-5-9 35302 Orange Weir Canyon, along old dirt road, c. 1.25 mi. ESE of Walnut Cyn Reservoir 340 Comment
  UC484228  Leptodactylon californicum C. B. Wolf 1931-3-6 1831 Orange on Trabuco Canyon Road 1 1/2 mi below Trabuco Oaks; below Trabuco Oaks 304 Comment
  RSA12929  Leptosiphon androsaceus C. B. Wolf 1935-4-7 6319 Orange Mouth of San Juan Hot Springs Canon, at san juan Hot Springs 213 Comment
  RSA699631  Leptosiphon floribundus Keith E. Hoffmaster 1934-4-8 s.n. Orange Gypsum can (n. Corona), Santa Ana Mts Comment
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Dec 11 2011
  SD251267  Leptosiphon floribundus R. F. Thorne 1977-11-21 49985 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp. Comment
  SD28081  Leptosiphon liniflorus Carl B. Wolf 1932-5-19 3637 Orange Rancho Santa Ana Botanic Garden, west of the tennis court. 198 Comment
  UCR197699  Lessingia filaginifolia A. C. Sanders, Fred M. Roberts 2008-9-18 36085 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge 330 Comment
  RSA51  Leymus condensatus E. R. Johnson 1927-6-10 77 Orange Rancho Santa Ana. Alt 500 ft. 152 Comment
  RSA699155  Leymus condensatus Jeanne Parton 1934-5-18 s.n. Orange Lemon-Heights Comment
  RSA697771  Leymus triticoides Minor Warne 1934-5-17 s.n. Orange Greenville Drainage. Comment
  UCR140888  Ligustrum lucidum Robert DeRuff 1988-6-20 353 Orange Southern Coast, Newport Beach, Newport Back Bay, East Bluff 9 Comment
  RSA716775  Lilium humboldtii Fred M. Roberts, Michelle Balk, Robert Allen, Chris Brnhill 2004-6-19 6066 Orange Santa Ana Mtns: Holy Jim Cyn.: Holy Jim Trail, 3.5km SE summit of Santiago Peak. 610 Comment
  LA22057  Lilium humboldtii subsp. humboldtii W. Pequegnat; 1938-6-15 sn Orange Santa Ana Mountains, Bear Springs Comment
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Jan 29 2015
  UC1088564  Limonium californicum Peter H. Raven 1958-7-5 13560 Orange salt marsh just n Surfside Comment
  RSA0045186  Limonium commune var. californicum Keith E. Hoffmaster 1934-10-7 237 Orange Near Santa Ana. Comment
  RSA723486  Limonium duriusculum R. E. Riefner 2005-11-23 5 -772 Orange City of Newport Beach, Newport Bay, Bay View Dr. at Jamboree Rd. 6 Comment
  JEPS58154  Linanthus androsaceus A. J. Perkins 1913-4-27 Orange Trabuco 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
  POM6475  Linanthus californicus P. A. Munz, L. T. Street, G. Williams 1919-5-3 2629 Orange Santa Ana River Canyon. Comment
  RSA468463  Linanthus californicus Albert J. Perkins 1920-5-16 s.n. Orange Trabuco Canyon, Comment
  SEINET12279065  Linanthus demissus J. F. Bright, Wyman, C. 1933-1 8200 Orange in valley near Del Toro Comment
  RSA678735  Linanthus dianthiflorus Fred M. Roberts, Carol A. Roberts, Robert Allen 2003-5-11 5860 Orange Dana Point Headlands: hilltop, 0.6km SSW Richard Henry Dana School south of Pacific Coast Highway and north of Scenic Drive. 73 Comment
  RSA753417  Linanthus dianthiflorus D. E. Bramlet 2008-3-31 4137 Orange 223m E of Upper Hicks Haul Rd, Trib. to Limestone Cyn, 1km S of Santiago Cyn Rd. 328 Comment
  UC729697  Linanthus dianthiflorus Carl B. Wolf 1932-3-8 Orange Santiago Dam, w base of Santa Ana Mts. Santa Ana Mts. 304 Comment
  POM36578  Linanthus dianthiflorus subsp. dianthiflorus M. B. Dunkle 1935-2-23 4338 Orange Dana Point. 15 Comment
  CHSC116475  Linanthus floribundus subsp. floribundus R. F. Thorne; C. W. Tilforth, E. W. Lathrop 1977-4-27 49714 Orange Santa Ana Mountains: Bedford Truck Trail, ca. 0.8 km below junction with Main Divide Truck Trail. Comment
  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
  SD254679  Linanthus liniflorus D. E. Bramlet 2008-5-20 4278 Orange Peninsular Range: Santqa Ana Mountains Foothills: Northern Loma Ridge, 305 m west of Hwy 241, 975 m south of Santiago Canyon Road, 61 m north of access road (Black Star Canyon 7.5'Q) 355 Comment
  RSA698401  Linanthus parviflorus Dorothy Sammis s.n. Orange Trabuco Canyon. Comment
  UCR175058  Linaria canadensis Vanessa Lee 2005-4-24 s.n. Orange South Coast, Crystal Cove, Laguna Beach, above Pacific Coast Highway 61 Comment
  UCR191340  Linaria canadensis A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34617 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 290 Comment
  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
  UC1419618  Linaria maroccana J. McNeill 1969-4-10 3034 Orange Newport, Eastbluffs, Irvine Arboretum Irvine Arboretum; Upper Newport Bay, Newport, Eastbluffs, Irvine Arboretum 15 Comment
  UC1419828  Lindernia dubia var. anagallidea G. D. Barbe 1973-8-9 1693 Orange Santa Ana (Tustin); Bordier's Nursery, 7231 Irivne Blvd Comment
  CAS-BOT-BC432275  Lithophragma affine Alice Eastwood; John Thomas Howell 1937-4-24 3927 Orange 2 miles E of San Juan Hot Springs Comment
  SFV17364  Lithophragma affine J. N. Hogue, J. D. Dilley, D. L. Bishop 1998-4-9 104 .3 Orange Santa Ana Mountains San Juan Canyon, 0.5 miles southwest of Lower San Juan Picnic Area at highway marker 14. 366 Comment
  RSA599176  Lithophragma affine subsp. affine Scott D. White 1997-3-28 4830 Orange Above Modjeska Canyon, proposed water tank site 425 Comment
  POM8755  Lithophragma affine subsp. mixtum P. A. Munz, R. D. Harwood 1920-4-25 3718 Orange Santa Ana Mountains, Silverado Canyon. 549 Comment
  IRVC1113  Lobularia maritima J. Pierce 1965-4-27 Orange Corona del Mar. Newport Beach Comment
  RSA651345  Lobularia maritima Norman Willis 1948-2-8 s.n. Orange 2 miles E of Orange 60 Comment
  RSA731970  Lolium perenne A. C. Sanders, Fred M. Roberts 2008-4-8 34735 Orange Peninsular Range: Lomas de Santiago, Loma Ridge, head of Hicks Canyon. S of Santiago Reservoir. 351 Comment
  RSA0011618  Lolium perenne Rankin s.n. Orange Santa Ana Comment
  RSA651759  Lolium perenne Diane T. Liggett 1981-5-16 6 Orange Riverside Freeway (91) east to Imperial Hwy, south to Nohl Ranch Road, east to Serrano Ave., south on Hidden Canyon Road, 1 km into Weir Canyon. Comment
  RSA0105951  Lomatium lucidum Alan Romspert 1998-5-9 s.n. Orange Gypsum Cyn, Fremont Cyn by road, Santa Ana Mountains. Comment
  RSA696519  Lonicera subspicata Minor Warne 1934-4-28 s.n. Orange Ladd Canyon-Santa Ana Mts. PR8. Comment
  RSA751430  Lonicera subspicata A. C. Sanders, Fred M. Roberts 2008-7-3 35670 Orange Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor 365 Comment
  RSA768119  Lonicera subspicata var. johnstonii E. W. Lathrop 1974-6-27 7424 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  RSA234567  Lotus corniculatus James Henrickson 1970-8-22 5300 Orange 2.5 miles NNW of Huntington Beach. 0 Comment
  RSA0006681  Lotus hamatus J. T. Howell 1927-6-8 56 Orange Botany Garden, Rancho Santa Ana. [original location] 152 Comment
  RSA734806  Lotus humistratus A. C. Sanders, Fred M. Roberts 2008-5-6 35254 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
  RSA788959  Lotus purshianus Robert F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49588 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74) Comment
  UCR186428  Lotus purshianus Robert DeRuff 1986-6-12 105 Orange Southern Coast, Newport Beach, Newport Back Bay, flats at 23rd St. 1 Comment
  UC1543068  Lotus purshianus var. purshianus Donald G. Nelson 1935-7-5 345 Orange E. Elm St., Brea Brea Comment
  CDA25636  Lotus salsuginosus A. C. Sanders, Fred M. Roberts 2008-5-6 35232 Orange Peninsular Range; Santa Ana Mountains; Lomas de Santiago, lower Hicks Canyon, just above tollway (Highway 241) crossing on Irvine Haul Road, near debris basin. Comment
  UC511104  Lotus scoparius Lyman Benson 1932-3-26 3200 Orange Dana Point 60 Comment
  RSA406884  Lotus scoparius N. C. Cooper 1943-12-26 2015 Orange Corona Del Mar Comment
  RSA590947  Lotus scoparius Fred M. Roberts 1991-3-2 4778 Orange San Joaquin Hills: Laguna Canyon, Laguna Laurel, just west of Laguna Canyon Road, ca. 2 km N jct. El Toro Road, 4.5 km E Signal Peak. 110 Comment
  IRVC2255  Lotus scoparius subsp. scoparius S. Park 1965-4-8 Orange Corona del Mar, between Narcissus Ave. and Marigold Ave. Newport Beach Comment
  UCR203987  Lotus scoparius var. scoparius Fred M. Roberts 2008-3-12 6729 Orange South Coast, Dana Point Headlands Center for Natural Lands Mgmt. Preserve, west side, c. 0.8 km west of Marine Institute, Dana Point Harbor 50 Comment
  RSA649262  Lotus strigosus T. Pringle 1966-3-22 68 Orange In Silverado Canyon Comment
  RSA751166  Lotus strigosus D. E. Bramlet 2008-5-15 4271 Orange Upper Borrego Cyn. 152m east of the access road and 1.7km west of Santiago Cyn Road 450 Comment
  UC864904  Lotus strigosus Carl B. Wolf 1932-3-8 Orange 0.5 mi n Corona del Mar (borders of Newport Bay); Newport Bay 7 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
  IRVC11703  Lotus strigosus var. strigosus R. Yarnell 1966-4-1 121 Orange near CSUF in open field. Fullerton Comment
  IRVC17284  Lotus strigosus var. strigosus Karlin G. Marsh 1980-5-5 Orange Rancho Mission Viejo: Planning area; along road way. Southern Coastal Comment
  RSA697981  Lotus subpinnatus Unspecified s.n. Orange Orange County park Comment
  UC1608265  Lotus wrangelianus Steve Boyd and Tim Ross 1992-5-20 7485 Orange Lucas Canyon at the Lucas Canyon Trail crossing, just downstream from crossing, w edge of the San Mateo Canyon Wilderness Area Southern Santa Ana Mountains, San Mateo Canyon Wilderness Ar 320 Comment
  RSA38193  Ludwigia peploides subsp. peploides P. A. Munz 1946-10-2 11557 Orange Bank of Santa Ana River, Rancho Santa Ana. 122 Comment
  SD227862  Ludwigia repens Scott D. White, Brian Leatherman 1997-6-12 5343 Orange East of San Juan Capistrano: San Juan Creek between Hwy 74 jtn. 45 Comment
  UCR179763  Ludwigia repens R. E. Riefner Jr. 2006-10-8 06- 483 Orange South Coast, Irvine, San Diego Creek near 405 Freeway, between 405 and Laguna Road 51 Comment
  POM201839  Lupinus L. M. Booth 1932-5-19 1072 Orange Newport Bay. Comment
  UC1543224  Lupinus Donald G. Nelson 1935-3-23 182 Orange near dump just s of E. Orange thorpe Ave., E. Fullerton E. Fullerton Comment
  RSA184076  Lupinus I. L. Wiggins 1966-3-31 20574 Orange Grazed field along south side of Brea Olinda Boulevard, near Carolina Avenue. Comment
  RSA698718  Lupinus albifrons L. C. Hull 1934-3-11 s.n. Orange Ortega Highway. Comment
  RSA749847  Lupinus bicolor D. Bramlet, Weena Sangkatavat 2008-3-27 4130 Orange Bee Canyon, Bowerman landfill site. 528 m S of the Bee Canyon access road and 440 m W of the active landfill. Comment
  RSA407  Lupinus bicolor subsp. microphyllus J. T. Howell 1925-2-25 852 Orange Near Bee Canyon, Rancho Santa Ana. 152 Comment
  IRVC2301  Lupinus bicolor subsp. umbellatus John Schram 1965-5-1 HS 0420 Orange Corona Del Mar, Corona Highlands Southern Coastal Comment
  RSA594823  Lupinus concinnus subsp. concinnus Fred M. Roberts Jr., Sandra Leatherman, Brian Leatherman 1994-4-24 4917 Orange Santa Ana Mtns.: Lower Hot Springs Canyon, ca. 1 km NNW Juan Rancho Survey mark. 268 Comment
  RSA699738  Lupinus densiflorus Keith E. Hoffmaster 1935-4-19 s.n. Orange Santa Ana Mts. (Trabuco Rd.) 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
  SD247648  Lupinus excubitus var. hallii R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49692 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  RSA598965  Lupinus hirsutissimus Scott D. White 1997-3-28 4837 Orange Santa Ana Mountains: above Modjeska Canyon, proposed water tank site. 427 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
  RSA699740  Lupinus latifolius subsp. parishii Keith E. Hoffmaster 1936-5-3 s.n. Orange Santa Ana Mts (Santiago Peak) Comment
  UC718433  Lupinus latifolius var. parishii P. C. Everett 1935-6-19 7229 Orange Main Divide Motorway Bear Spring (Bear Spring); Santa Ana Mts., Bear Spring 1219 Comment
  CAS-BOT-BC217748  Lupinus longifolius E. R. Johnson 1932-4-15 2956 Orange Rancho Santa Ana, 1 mi. NW of Roundtop (Section 16) 457 Comment
  IRVC14759  Lupinus longifolius A. S. Boughey 1965-6-15 152 Orange Ortega highway; ca. 1.0 mile E of San Juan Guard Station. Santa Ana Mountains Comment
  RSA689414  Lupinus longifolius Scott D. White, Amanda Duchardt 2003-4-10 9007 Orange Santa Ana Mountain Foothills: Ridges & east-facing canyons above Trampas Canyon. 122 Comment
  UCR228793  Lupinus longifolius Dick Newell, Don Millar 2011-5-3 145 Orange Coastal Plains, San Joaquin Hills, Laguna Canyon Wilderness Park, Willow Trail 160 Comment
  RSA0059076  Lupinus longifolius CNPS Accuracy Assessment Team 2014-5-7 7176 Orange Limestone Canyon. Comment
  IRVC24729  Lupinus microcarpus var. microcarpus Fred M. Roberts 1986-5-14 2827 Orange Lomas de Santiago: Lomas Ridge, Santiago Canyon Rd., 5.5km by road NW Silverado Canyon Rd. Santa Ana Mountains 256 Comment
  JEPS65473  Lupinus microcarpus var. microcarpus H. E. Malmsten 1928-4-27 Orange O Neill Ranch Comment
  SEINET6932686 Image available Lupinus nanus W. P. Vestal, A. G. Vestal 1955-3-24 3455 Orange Trabuco Canyon, ca. 5 miles east of El Toro. Comment
  RSA183373  Lupinus polycarpus C. Leo Hitchcock 1966-3-15 24135 Orange 1/2 mile E of Brea Comment
  UC219306  Lupinus sparsiflorus P. A. Munz, R. D. Harwood 1920-4-25 3717 Orange Silverado Canyon; Santa Ana Mts., Silverado Canyon 548 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
  IRVC2302  Lupinus sparsiflorus subsp. sparsiflorus B. Newman 1965-4-14 s.n. Orange Dana Point. Southern Coastal Comment
  RSA683169  Lupinus sparsiflorus subsp. sparsiflorus Scott D. White, Amanda Duchardt 2003-4-10 9020 Orange Santa Ana Mountain Foothills: Ridges & east-facing canyons above Trampas Canyon. 122 Comment
  RSA788817  Lupinus sparsiflorus subsp. sparsiflorus Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49804 Orange Santa Ana Mountains: Trabuco Canyon Comment
  IRVC2348  Lupinus succulentus D. Van Gorden 1965-5-9 HS 0415 Orange Silverado Canyon. Santa Ana Mountains; Comment
  RSA653185  Lupinus succulentus David Barrios 1991-5-8 33 Orange 1500 ft. Northwest of Fairmont Ave and Quail cir. 365 Comment
  RSA701206  Lupinus succulentus Keith E. Hoffmaster 1928-3-5 s.n. Orange Santa Ana Mountains Comment
  UCR191456  Lupinus succulentus A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34634 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
  IRVC2357  Lupinus truncatus A. S. Boughey 1965-6-15 149 Orange Ortega highway; ca. 1.0 mile E of San Juan Guard Station. Santa Ana Mountains Comment
  SBBG47485  Lupinus truncatus M. B. Dunkle 1935-3-3 4346 Orange San Juan Cyn 457 Comment
  UCR203985  Lupinus truncatus Fred M. Roberts 2008-3-12 6726 Orange South Coast, Dana Point Headlands Center for Natural Lands Mgmt. Preserve, west side, c. 0.8 km west of Marine Institute, Dana Point Harbor 50 Comment
  UCR98121  Lupinus truncatus George K. Helmkamp, E. A. Helmkamp 1997-4-24 1653 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, 1.6 mi. SE of Ortega Hwy (Calif. Hwy 74) on Rd. 7-S14 549 Comment
  UCSB21320  Lupinus truncatus Keefe, Joseph 1967-3-26 Orange South edge of Newport Bay; on Back Bay Drive; 2.0 miles northeast of intersection with Jamboree Drive; Corona del Mar 3 Comment
  RSA588779  Lupinus truncatus Fred M. Roberts, Nicole Orlik 1990-4-11 4558 Orange Santa Ana Mountains: East Fork Upper Long Canyon, along Main Divide Truck Trail, 4.4 kilometers SE Los Pinos Peak. 750 Comment
  RSA700088  Lupinus truncatus Anonymous 1935-02 s.n. Orange Ortega highway near San Juan Springs. Comment
  UCR251743  Lycium brevipes var. hassei R. E. Riefner Jr. 2014-4-12 14- 77 Orange South Coast, City of San Clemente, San Clemente State Beach, SSW c. 100 m from the intersection of Ave. Califia and South Ola Vista Rd. 40 Comment
  POM4188  Lycium californicum Philip A. Munz 1918-5-5 2196 Orange Laguna Beach. Comment
  RSA0073647  Lycium californicum Fred M. Roberts 2010-3-12 7176 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
  RSA3177  Lycium californicum Carl B. Wolf 1932-3-8 2686 Orange 1/2 mile N of Corona del Mar, Newport Bay. 8 Comment
  RSA428835  Lycium californicum Freda Detmers 1929-5-12 s.n. Orange Capistrano Beach Comment
  RSA80321  Lycium californicum F. W. Peirson 1924-2-10 4526 Orange Balboa Beach, mainland near bridge Comment
  UCR174180  Lythrum californicum A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33035 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
  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
  RSA0014840  Lythrum californicum F. W. Peirson 1924-8-29 5066 Orange 4 miles south of Santa Ana. Comment
  RSA0014852  Lythrum californicum L. M. Booth 1932-6-4 1147 Orange Newport Lagoon. Comment
  UCR18628  Madia gracilis John C. Roos 1960-5-30 s.n. Orange Peninsular Ranges; Santa Ana Mtns, ridge at head of Hagador Canyon 1070 Comment
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Jan 7 2013
  RSA0100998  Malacothamnus densiflorus M. B. Dunkle 1933-3-5 3085 Orange San Juan Canyon. Comment
  RSA433316  Malacothamnus fasciculatus Albert J. Perkins 1923-6-28 s.n. Orange Laguna Cliffs Comment
  RSA702686  Malacothamnus fasciculatus Scott D. White, Michael Honer 2004-5-17 10400 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
  RSA751428  Malacothamnus fasciculatus A. C. Sanders, Fred M. Roberts 2008-7-3 35677 Orange Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor 365 Comment
  SBBG87367  Malacothamnus fasciculatus var. fasciculatus K. Kimberley 1988-5-29 17 Orange Hwy 18, 2 mi SW of Irvine Lake 152 Comment
  RSA553110  Malacothamnus fasciculatus var. laxiflorus Fred M. Roberts 1989-5-9 4342 -A Orange Gypsum Canyon, west for,, 5.6 km WNW Sierra Peak, 1km S Hwy 91. 146 Comment
  UCR3184  Malacothrix saxatilis Chuck Elliott 1964-5-2 s.n. Orange Los Angeles Basin Region, Carbon Canyon 61 Comment
  RSA703645  Malacothrix saxatilis var. saxatilis R. E. Riefner Jr. 1999-8-21 99 -360 Orange Laguna Beach, west of Pacific Coast Hwy., vicinity of Aliso Creek Park and south to West Drive. 15 Comment
  RSA743460  Malacothrix saxatilis var. saxatilis Fred M. Roberts 2008-7-10 7068 Orange Dana Point: Dana Point Headlands, CNLM Preserve, along north slopes above Dana Strand Beach, 0.8km WNW Marine Institute, Dana Point Harbor. 45 Comment
  RSA714451  Malacothrix saxatilis var. saxatilis R. E. Riefner 1999-8-21 99 -360 Orange Laguna Beach, west of Pacific Coast Hwy., vicinity of Aliso Creek Park and south to West Drive. 0 Comment
  RSA234493  Malacothrix saxatilis var. tenuifolia James Henrickson 1970-7-25 5039 Orange 2.5 miles NE of Huntington beach, 1 mile SE of Warner Ave. on sandy slope of E. Pacific Coast Hwy. at border of Bolsa Chica Salt Marsh. 0 Comment
  CDA8325  Malacothrix saxatilis var. tenuifolia T. C. Fuller 1962-6-7 8875 Orange Brea Canyon Road to Pomona, 1.2 miles north of Brea. 0 Comment
  RSA94955  Malacothrix saxatilis var. tenuifolia F. W. Peirson 1919-11-8 1482 Orange Aliso Creek. 0 Comment
  RSA528045  Malephora crocea A. C. Sanders 1990-10-6 10188 Orange Newport Bay, North Star County Beach area on the SW end of the bay, ca. 2 km inland of Highway 1. 1 Comment
  UC1130499  Malosma laurina A. Lewis May 1934 450 Orange 1/2 mi. w. Long Canyon; Cleveland Nat'l Forest, Elsinore Quad. 914 Comment
  UCD116855  Malosma laurina P. B. Kennedy 1925-1-12 s.n. Orange Irvine Range. Comment
  UCD116857  Malosma laurina P. B. Kennedy 1925-1-12 s.n. Orange Irvine Range. Comment
  UCR193003  Malva parviflora A. C. Sanders, Fred M. Roberts 2008-6-17 35456 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Hicks Canyon Haul Road 0.5 mi. east of the Foothill Transportation Corridor 244 Comment
  UCSB48098  Malva parviflora Roberts, Fred 1981-4-11 Orange Ortega Hwy: Hwy 74 5.2km E San Juan Capistrano near San Juan Creek crossing 52 Comment
  RSA5574  Malva parviflora Carl B. Wolf 1932-6-28 3768 Orange Bryant Ranch: along western half of north boundary of 40 acre Valencia orange grove at Bryant Ave. and Hansen Road. 9 Comment
  RSA2108  Marah macrocarpa C. B. Wolf 1931-2-9 1829 Orange Santa Ana Canyon between Horseshoe Bend and Esperanza, over whire fence along RR. 137 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
  RSA703358  Marah macrocarpa var. macrocarpa Fred M. Roberts, Laura Cohen 2004-2-13 6023 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, Shady Canyon tributary to Cristianitos Cyn., 1.34 km NW Sycamore Gate, 0.85 km W of Cristianitos Road. 152 Comment
  RSA734903  Marrubium vulgare A. C. Sanders 2008-5-28 35440 Orange Lomas de Santiago, Bee Flat at mouth of Limestone Canyon. 264 Comment
  UCR232927  Marsilea drummondii R. E. Riefner Jr. 2007-9-30 07- 415 Orange city of Yorba Linda, Santa Ana Canyon, urban runoff tributary to Santa Ana River. La Palma Ave. at Via Lomas de Yorba East 110 Comment
  SD240774  Marsilea drummondii R. E. Riefner Jr. 2007-9-30 07 415 Orange City of Yorba Linda, Santa Ana Canyon, urban runoff tributary to Santa Ana River, La Palm Ave at Via Lomas De Yorba East. 110 Comment
  UC1292308  Matricaria occidentalis C. L. Hitchcock and C. V. Muhlick 1964-3-17 23065 Orange 8 mi e Yorba Linda; Santa Ana Canyon Comment
  CDA6381  Mazus japonicus G. D. Barbe 1973-7-9 1694 Orange Bordier s Nursery, 7231 Irvine Boulevard, Santa Ana (Tustin). 0 Comment
  UCSB52896  Meconella denticulata Roberts, Fred; Allen, R. 1983-4-10 Orange Santa Ana Mts; Upper Hot Springs Canyon; 3.1km WSW Falcon Group Camp; 2.5 km S Los Pinos Peak 790 Comment
  IRVC2372  Medicago polymorpha Robin Hobson 1965-4-10 s.n. Orange Santa Ana Heights; 2431 Mesa Dr. Southern Coastal Comment
  IRVC2374  Medicago polymorpha D. Van Gorden 1965-5-9 s.n. Orange Silverado Canyon. Santa Ana Mountains; Comment
  POM348035  Medicago polymorpha E. S. Spalding 1923-1-1 s.n. Orange Laguna Beach. Comment
  UCR192459  Medicago rigidula A. C. Sanders, Fred M. Roberts 2008-3-25 34527 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  RSA746483  Medicago rigidula R. E. Riefner Jr. 2008-5-12 08 -75 Orange Ladera Ranch, Cecil Pasture at Jerome Rd. 157 Comment
  RSA746479  Medicago truncatula R. E. Riefner Jr. 2007-4-1 07 -166 Orange City of Laguna Niguel, Laguna Niguel Regional Park, general vicinity of La Paz Rd. at Aliso Creek. 70 Comment
  CAS-BOT-BC414241  Melaleuca viminalis R. E. Riefner, Jr. 2014-7-13 14 -242 Orange City of Seal Beach, N side of Westminster Blvd., ca. 0.2 mi W of Road B 5 Comment
  LA10610  Melica imperfecta A. M. Johnson; 1934-4-15 4416 Orange Carmen's, Laguna Beach Comment
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Aug 29 2015
  RSA542365  Melica imperfecta Fred M. Roberts 1988-4-8 3896 Orange Lomas de Santiago: Loma Ridge, Central Linestone Canyon, 4.1 kilometers NNW Bolero Lookout. 323 Comment
  RSA58  Melica imperfecta J. T. Howell 1927-6-26 230 Orange Claymine Canon near Sierra Peak. [canyon] 244 Comment
  RSA734398  Melica imperfecta Keith E. Hoffmaster 1935-4-14 605 Orange Live Oak can. 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
  UCR190980  Melica imperfecta A. C. Sanders, Fred M. Roberts 2008-4-22 34996 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
  POM50513  Melica imperfecta var. flexuosa Le Roy Abrams 1901-06 1689 Orange San Joaquin Hills Comment
  IRVC2399  Melilotus albus L. Stilgenbauer 1965-4-8 s.n. Orange Newport Beach; Corona del Mar. Southern Coastal Comment
  IRVC2400  Melilotus albus Kathy Durica 1965-5-2 s.n. Orange Costa Mesa; Maple Ave. Southern Coastal Comment
  IRVC2401  Melilotus albus I. L. Wiggins 1966-2-16 20446 Orange Placentia; corner of Bastencherry Rd. and Cambridge Ave.; edge of drainage ditch along shoulder of road. Persisting from 1965 crop. Southern Coastal Comment
  IRVC2404  Melilotus albus D. Ibbetson 1965-4-20 s.n. Orange Newport Beach Southern Coastal Comment
  UCR173932  Melilotus albus A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33004 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
  IRVC22485  Melilotus indicus Fred M. Roberts 1985-4-24 1651 Orange Laguna Beach: Laguna Canyon along Laguna Canyon Rd., 0.8km N jct. El Toro Rd. Southern Coastal 78 Comment
  IRVC2415  Melilotus indicus J. B. Anderson 1966-4-16 578 Orange Newport Beach; Corona del Mar; Buck Gully; "Little Corona Beach"; moist canyon bottom with small brooklet near stream. Southern Coastal 0 Comment
  UCR103153  Melilotus indicus Scott D. White 1997-3-26 4808 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
  UCR192468  Melilotus indicus A. C. Sanders, Fred M. Roberts 2008-3-25 34536 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  UCR237823  Melilotus indicus Mark A. Elvin 2003-2-2 2292 Orange South Coast, San Joaquin Marsh, UCI campus SSE of intersection of Jamboree Blvd. and Campus Dr. 2 Comment
  IRVC2428  Melilotus indicus Pat McClellan 1965-5-1 Orange Coast Highway. Southern Coastal Comment
  POM201874  Melilotus indicus L. M. Booth 1932-5-12 1018 Orange Newport Bay. Comment
  JEPS42777  Mentzelia micrantha John Thomas Howell 1927-7-3 2642 Orange Santa Ana Mts., Claymine Canyon 304 Comment
  RSA741704  Mentzelia micrantha R. E. Riefner Jr. 2007-6-11 07 -252 Orange Santa Ana Mtns., Irvine Ranch Reserve, Fremont Canyon Conservation Easement, upper Fremont Canyon, Donaldson Ranch area. 382 Comment
  UCD96994  Mesembryanthemum crystallinum J. C. Roos 1965-6-16 s.n. Orange Dana Point. Comment
  UCR252194  Mesembryanthemum crystallinum Marissa Manahan 2011-5-7 s.n. Orange Newport Beach, Corona Del Mar State Beach; south of Avocado Ave. off Ocean Blvd. 25 Comment
  RSA113255  Mesembryanthemum crystallinum E. K. Balls 1955-4-4 20432 Orange Coastal Strand, mouth of Santa Ana River, W bank, Hwy 101. 3 Comment
  RSA302143  Mesembryanthemum crystallinum J. R. Shevock 1972-2-18 1339 Orange Bluffs, Newport back bay. 9 Comment
  RSA74871  Mesembryanthemum crystallinum Elroy Robinson 1935-6-28 s.n. Orange San Clemente, along Santa Fe Railway. Comment
  CAS-BOT-BC435275  Mesembryanthemum nodiflorum Carl B. Wolf 1927-7-23 662 Orange Juste no. of San Clemente Comment
  SEINET3155128  Mesembryanthemum nodiflorum L. Abrams 1903-4-20 3280 Orange Near San Juan Comment
  UCR100444  Mesembryanthemum nodiflorum B. G. Pitzer 1996-4-30 2775 Orange South Coast, Upper Newport Bay, Calif. Dept. Fish & Game Ecological Reserve, off (W of) Jamboree Road 6 Comment
  UCR21020  Mesembryanthemum nodiflorum S. Beckstrom-Sternberg 1980-5-25 52580- 01 7 Orange Jamboree Rd entrance to Hwy 73 South. Comment
  UCR3314  Mesembryanthemum nodiflorum Cary Brown 1964-3-28 28364- 04 Orange South Coast, Hwy 101 alternate, 1 mile north of San Clemente 6 Comment
  RSA4819  Mesembryanthemum nodiflorum James Snow 1932-1 s.n. Orange Bryant Ranch: Near Long Beach. Plant # 8. Comment
  RSA5962  Mesembryanthemum nodiflorum C. B. Wolf 1932-9-13 4034 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
  RSA263682  Micropus californicus E. W. Lathrop 1966-4-10 6154 Orange Silverado Canyon Comment
  CAS-BOT-BC348844  Microseris douglasii subsp. douglasii LeRoy Abrams 1903-4-18 3262 Orange Trabuco arroyo near Capistrano Comment
  RSA651497  Microseris douglasii subsp. platycarpha D. E. Bramlet 2000-4-21 2990 Orange Exposed terraces of Blind Cyn. and North of Irvine Park. The site is 1.5 km west of Blind Canyon and 76m north of Irvine Park. This locality is 122m southwest of the MWD access road. 69 Comment
  UCR157699  Microseris douglasii subsp. platycarpha Adrian Wolf 1998-5-15 289 Orange South Coast, Dana Point Headlands, north of Scenic Dr. 67 Comment
  UCR208155  Microseris douglasii subsp. platycarpha Fred M. Roberts, D. E. Bramlet 2003-3-27 5621 Orange Coastal Plains & Basins; South Coastal Plain region, Rancho Mission Viejo: Donna O'Neill Land Conservancy, Cristianitos Cyn., 0.79km N Sycamore Gate, 0.23km W Cristianitos Rd. 126 Comment
  UCR98773  Microseris douglasii subsp. platycarpha D. E. Bramlet 1995-4-29 2404 Orange Fairview Park, Costa Mesa. 366m north of intersection of Wilson and Canyon drive and 152 m west of the Canyon School 43 Comment
  RSA651495  Microseris douglasii subsp. platycarpha D. E. Bramlet 2000-4-12 2975 Orange Fremont Canyon. The site is 976m south of the existing access road on the north ridge of the canyon. The site is 1.2 km northeast of Santiago Creek. 287 Comment
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Feb 21 2007
  RSA651500  Microseris douglasii subsp. platycarpha D. E. Bramlet 2000-4-12 2972 Orange Fremont Canyon. The site is 183m south of the existing access road on the north ridge of the canyon. The site is 1.37km northeast of Santiago Creek. 336 Comment
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Feb 21 2007
  JEPS10278  Mimulus Lawrence M. Booth 1932-7-27 1322 Orange Newport Bay Comment
  UC943889  Mimulus H. E. McMinn, M. Van Rensselaer 1945-6-9 1910 CD Orange ca. 5 mi e Laguna Beach (on Laguna Canyon Highway) Comment
  RSA732280  Mimulus aurantiacus A. C. Sanders 2008-4-29 35134 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
  UCD122208  Mimulus aurantiacus Raymond A. Evans 1949-5-14 s.n. Orange Sea bluffs at Corona Del Mar. Comment
  RSA759107  Mimulus aurantiacus Robt. Allen, Reginald Durant 2008-9-28 s.n. Orange Laurel Spring, just below Harding Truck Trail. Survey Waypoint no. 85. Comment
  JEPS87320  Mimulus aurantiacus var. pubescens David M. Thompson 1992-5-16 1066 a Orange 2.4 mi n and w Hwy 74 (along USFS Road 3S04 )n side of paved loop allowing access to Main Divide Road)); Santa Ana Mts. 950 Comment
  POM77  Mimulus aurantiacus var. pubescens D. L. Crawford 1916-7-26 s.n. Orange Laguna Canyon. Comment
  RSA551154  Mimulus aurantiacus var. pubescens David M. Thompson 1992-5-16 1068 Orange 0.6 mi. SW of San Bernardino Co. line along Carbon Canyon Rd. (Hwy 142). 229 Comment
  RSA55153  Mimulus aurantiacus var. pubescens David M. Thompson 1992-5-16 1067 Orange 2.4 mi. N and W of Hwy 1 along Hwy 133 ( Laguna Canyon Rd.) 52 Comment
  UC943850  Mimulus aurantiacus var. pubescens H. E. McMinn, M. Van Rensselaer 1945-6-10 1912 Orange slope on n side Santa Ana River; Santa Ana Canyon Comment
  UCR241904  Mimulus aurantiacus var. pubescens Fred M. Roberts 2012-4-24 7522 Orange Peninsular Ranges; Coastal Foothills, San Joaquin Hills, Buck Gully, tributary canyon below San Joaquin Hills Road and 2.0 km W Signal Peak 167 Comment
  RSA0014993  Mimulus brevipes Fred M. Roberts 2008-5-14 6965 Orange Lomas de Santiago: Loma Ridge, upper Bee Flat Canyon below Loma Ridge Rd., 1.3 km N Bee Peak and 5.4 km NW Bolero Lookout, Irvine Ranch Conservancy. 381 Comment
  RSA732274  Mimulus brevipes A. C. Sanders 2008-4-29 35125 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
  RSA82101  Mimulus clevelandii F. W. Peirson 1923-5-6 3509 Orange Trabuco Canyon to Santiago Peak 915 Comment
  JEPS87315  Mimulus clevelandii David M. Thompson 1992-5-16 1065 Orange Santa Ana Mountains, 3.9 mi N and W of Highway 74 along USFS Road 3S04 (the N side of paved loop allowing access to the main Divide Road). Comment
  UCR193318  Mimulus guttatus A. C. Sanders, T. B. Salvato 2008-5-13 35387 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
  SEINET10570241  Mimulus longiflorus Charlene A. Bennett 1976-7-21 Bennett 439 Orange Cultivated plants collected in and around the condominium pacific island estates In laguna hills; some native shrubs. 152 Comment
  CLARK-A1528-4272  Mimulus puniceus John C. Roos 1965-6-16 Orange Dana Point Comment
  CSUSB1909  Mimulus puniceus Mike Simmons 1975-5-28 Orange Highway 5, 2 miles west of Laguna Canyon Road 60 Comment
  RSA698209  Mirabilis laevis L. C. Hull 1934-3-7 s.n. Orange Laguna Hills Comment
  RSA731992  Mirabilis laevis A. C. Sanders, L. Farley, F. M. Roberts, D. E. Bramlet 2008-4-1 34651 Orange Peninsular Range: Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 250 Comment
  RSA751254  Mirabilis laevis A. C. Sanders, Fred M. Roberts 2008-7-16 35870 Orange Lomas de Santiago, Santiago Creek wash at and above the confluence of Hangmans Tree Canyon. 358 Comment
  SFV17360  Mirabilis laevis J. N. Hogue, J. D. Dilley, D. L. Bishop 1998-4-9 103 .2 Orange Santa Ana Mountains San Juan Canyon at San Juan Hot Springs. Just inside western boundary of Cleveland National Forest. 213 Comment
  CAS-BOT-BC434669  Mirabilis laevis var. crassifolia Carl B. Wolf 1932-3-8 2672 Orange 1/2 mi. No. of Corona Del Mar. Borders of Newport Bay. 7 Comment
  CAS-BOT-BC434670  Mirabilis laevis var. crassifolia I. M. Johnston 1918-5-4 266 Orange Hills back of Laguna Beach 152 Comment
  RSA0073649  Mirabilis laevis var. crassifolia Fred M. Roberts 2010-3-12 7178 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
  RSA3191  Mirabilis laevis var. crassifolia Carl B. Wolf 1932-3-8 2672 Orange 1/2 mile N of Corona del Mar, Newport Bay. 8 Comment
  JEPS61343  Mirabilis laevis var. crassifolia Alice King 1908-4-18 Orange near Santa Ana; ; Near Santa Ana Comment
  RSA38698  Modiola caroliniana E. L. Paddock 1943-9-10 s.n. Orange 1.5 miles NE of Brea Comment
  RSA0010774  Mollugo verticillata L. R. Abrams 1901-06 1769 Orange Laguna Comment
  JEPS22597  Monanthochloe littoralis Lawrence M. Booth 1932-7-27 1318 Orange Newport Bay Comment
  UC537290  Monanthochloe littoralis Lawrence M. Booth 1932-5-12 1046 Orange Newport Bay Comment
  RSA0005454  Monardella hypoleuca P. A. Munz 1923-9-7 7742 Orange Trail Trabuco Canyon to Santago Peak 915 Comment
  UCR17859  Monardella hypoleuca subsp. intermedia A. C. Sanders 1976-3-6 00407 Orange Peninsular Range; Santa Ana Mtns., Black Star Canyon 549 Comment
  UCR199794  Monardella hypoleuca subsp. intermedia Justin M. Wood 2008-6-23 15 Orange Santa Ana Mountains, foothills, on the Irvine Ranch, south of Limestone Canyon, c. 1/2 mi south of the sinks 351 Comment
  IRVC20514  Monardella lanceolata Fred M. Roberts 1983-9-26 1121 Orange Lion Canyon, Chiquito Basin Trail, 3.3km NNE Lower San Juan Picnic Ground; 4.3km SSE Los Pinos Peak. Santa Ana Mountains 810 Comment
  RSA16470  Monardella lanceolata var. lanceolata Percy C. Everett 1935-6-19 s.n. Orange Santa Ana Mountains, Trabuco canyon, 1 3.4 miles below (W.) summit of truck traul. 976 Comment
  RSA401585A  Monardella lanceolata var. lanceolata Claire Kibbe 1936-07 s.n. Orange Santa Ana Canyon. 762 Comment
  IRVC27048  Monardella viminea Mark A. Elvin 2005-2-8 3989 Orange UCI Arboretum Southern Coastal 15 Comment
  CAS-BOT-BC349571  Monolopia lanceolata Carl B. Wolf 1932-3-14 2709 Orange Rancho Santa Ana Botanic Garden, native to slope below Pinus radiata bed 192 Comment
  IRVC26728  Moraea tricuspidata Mark A. Elvin 2004-4-4 3224 Orange UCI Arboretum Southern Coastal 15 Comment
  RSA450862  Muhlenbergia asperifolia Gordon Marsh, Karlin G. Marsh 1977-11-21 s.n. Orange Santa Ana Mountains: San Juan Hot Springs. Comment
  RSA663203  Muhlenbergia asperifolia R. E. Riefner 2000-3-26 20 -150 Orange NCCP North Ranch Policy Plan Area. Fremont Canyon: N. of major stream fork along W. channel drainage 335 Comment
  CAS-BOT-BC275292  Muhlenbergia microsperma Helen D. Geis 1902-1-1 556 Orange Unspecified Comment
  RSA598923  Muhlenbergia microsperma Scott D. White 1997-3-28 4853 Orange Above Modjeska Canyon, proposed water tank site 425 Comment
  RSA758892  Muhlenbergia microsperma A. C. Sanders, Fred M. Roberts 2008-4-22 35009 Orange Lomas de Santiago, lower Hicks Canyon haul road, just above Irvine Ranch gate and road to cement plant, c. 1 mile NE of Rattlesnake Reservoir 213 Comment
  SEINET3828400  Muhlenbergia microsperma R. E. Riefner Jr. 2011-1 11 -99 Orange Newport beach, Orange County Parks & Recreation lands, along Newport Coast Drive, between Vista Ridge Rd. & Alteza Rd. 281 Comment
  RSA696203  Myosotis arvensis Virginia Pritchard, Ruth Greenwald 1938-05 s.n. Orange Santa Ana. Comment
  POM12404  Najas guadalupensis Philip A. Munz 1922-9-2 6347 Orange Ponds in Laguna Canyon 46 Comment
  CAS-BOT-BC219359  Nama stenocarpa Le Roy Abrams 1901-6-13 1770 Orange Laguna Comment
  RSA0043357  Nama stenocarpa Fred M. Roberts, Laura Cohen 2012-10-31 7714 Orange San Joaquin Hills. Upper Laguna Lake, north end. Laguna Coast Wilderness Park, c. 5.1 km east northeast of Signal Hill. 113 Comment
  UCR158037  Nama stenocarpa Adrian Wolf 1998-5-15 276 Orange South Coast, Lambert Reservoir, north of El Toro Marine Corps Air Station 134 Comment
  UCR266347  Nama stenocarpa D. E. Bramlet 2002-4-14 3269 Orange Laguna Lakes 113 Comment
  CAS-BOT-BC259821  Nassella cernua LeRoy Abrams 1903-4-18 3268 Orange Capistrano Comment
  RSA681020  Nassella cernua Fred M. Roberts, David E. Bramlet 2003-3-13 5586 Orange Donna O'Neill Land Conservancy: Ridge west of Christianitos Canyon, 1.6 km NW Sycamore Gate., (33 deg 29'37N, 117 deg 34' 16 W [UTM: 11S-04 46 936mE, 37 05 965mN.] 207 Comment
  RSA548875  Nassella lepida Fred M. Roberts 1988-4-10 3900 Orange Lomas De Santiago: Loma Ridge, Upper Limestone Canyon, c.a. 3.2 kilometer NNW Bolero Lookout. 347 Comment
  UCD87644  Nassella pulchra R. M. L. 1942-4-15 7 Orange north slope. Moulton Ranch. Comment
  UCD87664  Nassella pulchra F. M. Reed 1927-3-19 5474 Orange Laguna Beach. At Arch Beach. 15 Comment
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Nov 4 2017
  CAS-BOT-BC60333  Nasturtium officinale John Thomas Howell 1927-7-15 2777 Orange Santa Ana River bottom, Santa Ana Canyon. 152 Comment
  RSA647951  Nasturtium officinale Ken Greby 1985-4-18 10 Orange N side of Laguna Canyon Rd., 1 km NE of El Toro Rd. 53 Comment
  RSA689545  Nasturtium officinale R. E. Riefner 2002-5-4 20 -98 Orange Upper Newport Bay, Jamboree Rd at Bayview Dr. 15 Comment
  RSA592109  Navarretia atractyloides R. E. Riefner 1994-4-15 94 -338 Orange NE of Moulton Meadow Park, Nyes Place Road, City of Laguna Beach. Comment
  JEPS57038  Nemacaulis denudata var. denudata Lawrence M. Booth 1932-5-27 1132 Orange Newport Beach Comment
  POM50445  Nemacaulis denudata var. denudata L. R. Abrams 1901-06 1757 Orange Anaheim Landing Comment
  RSA780676  Nemacaulis denudata var. denudata Elizabeth A. Kempton 2006-5-5 304 Orange Roadside Pacific Coast Highway, near entrance to Bolsa Chica State Beach Ecological Park, outside of ecological boundary. 0 Comment
  RSA682600  Nemophila menziesii Scott D. White, Amanda Duchardt 2003-3-27 8865 Orange Santa Ana Mountain Foothills: Canyon bottom and west facing slopes above Canada Gobernadora. 91 Comment
  UC1607998  Nemophila menziesii Donald G. Nelson 1935-3-16 164 Orange n Fullerton; n of Fullerton 60 Comment
  RSA0051320  Nemophila menziesii Ophelia Frost 1932-3-28 s.n. Orange 2 miles NW of H.B. Comment
  CAS-BOT-BC533010  Nephrolepis cordifolia R. E. Riefner, Jr. 2016-5-24 16 -155 Orange City of Laguna Niguel, Alicia Pkwy S of Seabird Way 96 Comment
  IRVC150  Nephrolepis cordifolia Dorleene Van Gorden 1965-3-9 HS 539 Orange Costa Mesa; 2212 Meyer Plance Southern Coastal Comment
  UC2042000  Nephrolepis cordifolia R. E. Riefner Jr. 2011-8-25 11 -120 Orange City of Laguna Beach, Aliso Beach County Park, bluff ca. 0.15 mi SE of Aliso Way, NW ca 0.25 mi of West St. Comment
  SEINET10837341  Nerium oleander David B. Dunn 1971-8-13 Dunn 18107 Orange Cultivated plants at Costa Mesa, CA. Comment
  CDA1049  Nicotiana glauca D. G. Kelch 2006-12-9 6 .542 Orange Along Newport Back Bay Dr. in side canyon. Comment
  RSA699015  Nicotiana glauca Sadie Rutledge s.n. Orange Irvine Hills. Comment
  RSA700001  Nicotiana glauca Kenneth Beard s.n. Orange Santa Ana riverbank Comment
  UCR223423  Nicotiana glauca Dick Newell, Don Millar 2011-3-1 069 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Hicks Canyon Haul Road, above Jeffrey Rd. and below Hwy 241 crossing 175 Comment
  RSA184099  Nicotiana glauca I. L. Wiggins 1965-11-6 20348 Orange Near well #14, Kramer Oil Estates, near end of county road to Rancho Santa Ana. Comment
  RSA662315  Nicotiana glauca Dolores Perez 1981-4-11 1 Orange Carbon Canyon Rd., 6 miles E. of junction with Ca Hwy 90. Comment
  JEPS12373  Nicotiana quadrivalvis Lawrence M. Booth 1932-5-19 1083 Orange Newport Bay Comment
  POM202039  Nitrophila occidentalis L. M. Booth 1932-6-7 1157 Orange Newport Lagoon. Comment
  NY259276  Nolina cismontana J. C. Dice 1986-5-3 650 Orange Santa Ana Mountains, 0.2 miles west of Trabuco Canyon 365 Comment
  RSA615785  Nolina cismontana James C. Dice, Oberbauer 1986-5-3 651 Orange 0.2 km west of Trabuco Canyon. 365 Comment
  SD121703  Nolina cismontana James C. Dice, Thomas Oberbauer 1986-5-3 651 Orange Santa Ana Mountains, 0.2 kilometer west of the community of Trabuco Canyon and ca. 1 kilometer east of O'Neill Regional Park Comment
  UC1728555  Nolina cismontana James C. Dice with T. Oberbauer 1986-5-3 650 Orange 0.2 km w Trabuco Canyon; Santa Ana Mtns 365 Comment
  RSA734216  Nolina parryi Keith E. Hoffmaster 1936-5-3 726 Orange Live Oak Canyon, Santa Ana Mts Comment
  UC421656  Nolina parryi John Thomas Howell 1927-7-24 2827 Orange Claymine Canyon n. Santa Ana Mts. 152 Comment
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Nov 26 2007
  UC501522  Nolina parryi Frank W. Peirson 1922-5-18 3026 Orange canyon heading e at river Santa Ana River 228 Comment
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Nov 26 2007
  CDA25248  Nothoscordum gracile A. C. Sanders 2008-7-3 35714 Orange Peninsular Range; Santa Ana Mountains; Lomas de Santiago, Santiago Canyon near mouth of Limestone Canyon at Agustine Staging Area. Comment
  JEPS11321  Nuttallanthus texanus Alice King March, 1908 Orange Anaheim Plains Comment
  RSA733637  Oenothera dentata L. C. Hull 1934-4-8 s.n. Orange Laguna Hills. Comment
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Jun 24 2020
  POM225560  Oenothera elata subsp. hirsutissima P. A. Munz 1936-6-30 14176 Orange About 6 miles south of Garden Grove. Comment
  RSA609020  Oligomeris linifolia L. M. Booth 1932-5-24 1097 Orange Newport Bay. 8 Comment
  RSA792124  Oncosiphon piluliferum R. E. Riefner Jr. 2011-5-20 11 -57 Orange Newport Beach, Coastal Peak Park, East Coastal Peak Road at Ridge Park Road 305 Comment
  RSA288745  Opuntia M. G. McLeod, D. L. Walkington, D. J. Pinkava, G. Smith 1970-10-7 302 Orange Silverado Canyon, Santa Ana Mountains. Comment
  POM317772  Opuntia X occidentalis David Walkington 1963-5-17 171 Orange Above intersection of Dana Cove Park rd. and Green Lantern Dr., continuous slope with Dana Cove Park Rd. Dana Point. 61 Comment
  UC1313041  Opuntia X occidentalis Janet McIntosh 1966-4-9 17 Orange State Hwy 74 20 mi ne San Juan Capistrano Comment
  CAS-BOT-BC56216  Opuntia ficus-indica John Thomas Howell 1927-6-22 2574 Orange Field redacted by CAS, contact the data manager for more information Comment
  HSC3800  Opuntia littoralis J. W. Johnson 1961-3-29 Orange Newport Beach, slope overlooking Upper Newport Bay. Comment
  POM317069  Opuntia littoralis David Walkington 1962-11-18 63 Orange West side of N Euclid Ave. north of Sunny Hills West Home, Fullerton. 76 Comment
  RSA6668  Opuntia oricola B. D. Stark 1933-1-17 4518 Orange 5 miles north of Laguna Beach on road to Irvine. 152 Comment
  IRVC14193  Opuntia prolifera J. W. Johnson 1976-8-11 Orange Irvine; UCI, 300ft. south of Medical Center; on heavy clay soil in grazing climax of mediterranean grasses. Destroyed by construction. Southern Coastal Comment
  RSA759532  Orobanche vallicola Robt. Allen 2006-12-13 s.n. Orange Holy Jim Canyon Trail. About 1 mile up trail from forest gate. Within 1-2 m W of the trail edge 640 Comment
  IRVC29090  Orthocarpus purpurascens var. purpurascens Fred M. Roberts 1989-3-17 4205 Orange Aliso Canyon, 3.3km SSE Moulton Pk. Aliso-Wood Canyon Regional Park 30 Comment
  CAS-BOT-BC355773  Osmadenia tenella Munz; Street; Williams 1919-5-3 2631 Orange Santa Ana River Canon [Canyon] Comment
  POM8753  Osmorhiza brachypoda P. A. Munz, R. D. Harwood 1920-4-25 3722 Orange Santa Ana Mountains, Silverado Canyon. 549 Comment
  SD255070  Osmorhiza brachypoda R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49790 Orange Santa Ana Mountains: Trabuco Canyon. Comment
  SEINET10801634  Osteospermum ecklonis Charlene A. Bennett, David B. Dunn; Chester T. Dziekanowski 1976-7-21 Bennett 433 Orange Cultivated plants collected in and around the condominium-Pacific Island Estates in Laguna Hills; some native shrubs, etc. 152 Comment
  RSA421  Oxalis californica J. T. Howell 1927-6-16 144 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  UCR138442  Oxalis californica R. E. Riefner Jr. 2000-4-27 20- 389 Orange Santa Ana Mountains, North Ranch Policy Plan Area, along dirt road running south from Baker Canyon Road to Silverado Road 335 Comment
  RSA651768  Oxalis corniculata Jack D. Ingwersen 1962-6-2 s.n. Orange Anaheim Comment
  OBI30391  Oxalis pes-caprae B. Thomas 1967-12-30 147 -74 Orange 4 yds S of Cal State Fullerton's Science Bldg entrance in the fl bed Comment
  RSA649941  Oxalis pes-caprae Ken Zysk 1971-3-19 P 102 Orange 500 feet off Nutwood Dr., Fullerton. 91 Comment
  CAS-BOT-BC121211  Paeonia californica J. T. Howell 1927-6-6 2425 Orange Santa Ana River bottom, Santa Ana Canyon 152 Comment
  RSA700032  Paeonia californica L. C. Hull 1934-3-11 s.n. Orange Ortega Highway Comment
  RSA797015  Pallenis maritima R. E. Riefner Jr. 2010-1-2 10 -3 Orange City of Laguna Beach, Moss Point, vicinity of Ocean Way at Ruby St. 2 Comment
  SD247340  Pallenis maritima R. E. Jr. Riefner 2012-11-14 12 551 Orange City of Newport Beach, south of Poppy Street/Ocean Boulevard, coastal bluff near Little Corona Beach, rocky intertidal area. 4 Comment
  RSA724124  Panicum dichotomiflorum subsp. dichotomiflorum R. E. Riefner 2005-9-20 5 -674 Orange City of Huntington Beach, Huntington Central Park at Goldenwest St. 1 Comment
  UCD88687  Parapholis incurva Louis C. Wheeler 1947-5-3 6475 Orange Newport Bay. Comment
  UCR158156  Parapholis incurva Adrian Wolf 1998-5-27 335 Orange South Coast, Newport Slough, south of oil fields, between Huntington Beach, Costa Mesa and Newport Beach, just south of the channelized mouth of the Santa Ana River 2 Comment
  RSA548851  Parapholis incurva Fred M. Roberts 1988-5-20 3974 Orange Irvine; University of CA, Irvine, near Farm School, 1.4km ESE campus center., UTM 3722500m N, 423200mE 46 Comment
  RSA753165  Parietaria floridana D. E. Bramlet 2008-5-15 4272 A Orange Upper Borrego Cyn. 152m east of the access road and 1.7km west of Santiago Cyn Road 450 Comment
  CAS-BOT-BC413373  Parietaria hespera var. californica Helen D. Geis 1902-1-1 509 Orange Santa Ana Comment
  CAS-BOT-BC413392  Parietaria hespera var. hespera Marcus E. Jones 1926-3-13 s.n. Orange Santa Ana Canon [Canyon] Comment
  POM2138  Parietaria hespera var. hespera D. L. Crawford 1916-5-15 991 Orange Languna Canyon. Shade Comment
  UCR281841  Parietaria judaica R. E. Riefner Jr. 2017-8-23 17- 430 Orange South Coast, city of Huntington Beach, Sunset Beach, along South Pacific Avenue, vicinity of 17th St. 4 Comment
  SD247341  Parthenium hysterophorus Jan West 2015-4-22 Orange Santa Ana, SE corner of E 17th St. and Lincoln Ave., 0.5 km east of I-5 on 17th. Right-of-way between RR tracks and Lincoln, etc. 49 Comment
  RSA0026252  Parthenocissus vitacea Fred M. Roberts 2013-6-12 7798 Orange Peninsular Ranges: Santa Ana Mtns: Lower Silverado Canyon along Silverado Creek on north side of Silverado Canyon Road, 0.6 kilometers ENE Silverado School and 1.4 kilometers up stream Black Star Road Crossing. 320 Comment
  UCR137451  Paspalum distichum Scott D. White, Brian Leatherman 1997-6-12 5333 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
  UC2061655  Paspalum pubiflorum R. E. Riefner Jr. 2007-12-2 07 -503 Orange City of Yorba Linda, Santa Ana Canyon, N bank of Santa Ana River, E of weir Canyon Rd., vicinity of La Palma Ave. and Mercado del Rio. Comment
  RSA733049  Paspalum vaginatum R. E. Riefner 2007-10-26 07 -452 Orange City of Laguna Niguel, laguna Niguel Regional Park, vivinity of La Paz Rd. at Aliso Creek. 64 Comment
  UCR250862  Pectocarya linearis Dick Newell, Don Millar 2014-4-1 359 Orange Peninsular Range; Santa Ana Mtns., lower Fremont Canyon wash, 0.15 mi. NE of MWD Road and Lake View SCE Rd. 206 Comment
  UCSB56507  Pectocarya linearis subsp. ferocula Marsh, G. 1978-3-17 Orange U.C. Irvine Ecological Preserve: in swale, near hilltop of Hill #3 85 Comment
  RSA663276  Pedicularis densiflora R. E. Riefner 2000-3-18 20 -134 Orange Cleveland National Forest. Ridge-top E of Fremont Canyon and W of Hidden Valley. eastern part of Section 24. 732 Comment
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Mar 17 2021
  UCR196332  Pelargonium Mark A. Elvin 2005-5-14 4313 Orange Southern Coastal, UCI Arboretum 15 Comment
  UCR218614  Pelargonium X domesticum Robert DeRuff 2009-1 547 B Orange South Coast, Upper Newport Bay, below intersection of Back Bay Dr. and East Bluff Dr. 12 Comment
  UCR159812  Pelargonium grossularioides Mark A. Elvin 2005-5-14 4314 Orange Southern Coastal, UCI Arboretum 15 Comment
  CAS-BOT-BC67762  Pellaea andromedifolia Ira L. Wiggins 1966-2-4 20420 Orange Among rocks on floor of Trabuco Cnayon, about 1/2 mile above canyon mouth. Comment
  RSA783268  Pellaea andromedifolia J. D. Olmsted 1959-4-23 466 Orange Spring Trail at Beacon Pines Ranch; 9 miles SW of Corona. 762 Comment
  IRVC3143  Pellaea andromedifolia var. andromedifolia A. S. Boughey 135 Orange [San Juan Canyon], Ortega Hwy, 1mi E San Juan Guard Sta. Santa Ana Mountains Comment
  RSA301972  Pellaea andromedifolia var. andromedifolia J. R. Shevock 1970-12-20 574 Orange Silverado Canyon 762 Comment
  RSA698464  Pellaea mucronata Minor Warne 1934-4-28 s.n. Orange Ladd Canyon-Santa Ana Mts Comment
  RSA751159  Pellaea mucronata D. E. Bramlet 2008-4-1 4142 Orange Ridegeline in Upper Hicks Canyon, 136m S of the Haul Rd. 345 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
  LA102210  Pennisetum ciliare J. West; 1983-10-8 sn Orange freeway right of way along Newport Freeway (#55) at its intersection with Chapman Ave Comment
  CDA2157  Pennisetum clandestinum Margaret Bellue, Johnson Oct 1944 Orange Yorba Linda. 0 Comment
  RSA30341  Pennisetum purpureum E. L. Paddock 1943-7-2 12738 Orange Near Dana Point. Comment
  RSA731966  Pennisetum setaceum A. Sanders 2008-4-29 35138 Orange Lomas de Santiago, western end of Loma Ridge on road to shriff's training facility, c. 1.5mi SW of Santiago Reservoir. 335 Comment
  UCD89470  Pennisetum setaceum Beecher Crampton 1972-6-15 8813 Orange Irvine Blvd. X Lambert Road, near northwest cornoer South Coast Field Station. Comment
  RSA0024926  Pennisetum villosum R. E. Riefner Jr. 2013-2-11 13 -41 Orange City of Laguna Beach, vicinity of Pacific Coast Highway and Montage Resort Dr. 30 Comment
  RSA725933  Pennisetum villosum R. E. Riefner 2003-11-30 3 -486 Orange South Coast: Santa Ana, 55 Freeway near Brookhollow St. 32 Comment
  SEINET10299452  Penstemon centranthifolius Norman C. Cooper 1944-6-4 1351 Orange San Juan Canyon, Lower campground 457 Comment
  RSA769335  Penstemon heterophyllus subsp. australis E. W. Lathrop 1974-6-27 7411 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  RSA220992  Penstemon heterophyllus var. australis E. W. Lathrop 1966-4-18 6186 Orange 4 mi NE of Lake Irvine, Black Star Canyon, Cleveland National Forest, Trabuco District. Comment
  UC284869  Penstemon heterophyllus var. australis P. A. Munz 1923-9-7 7748 Orange Santiago Peak Santa Ana Mts., , near summit (near the summit) 1706 Comment
  RSA202999  Penstemon spectabilis James Henrickson 1967-4-30 2468 Orange 2 miles north of Lake Elsinore. 396 Comment
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Mar 16 2013
  NY661144  Penstemon spectabilis var. spectabilis L. Abrams 1901-6-15 1842 Orange Santiago Peak 1676.4 Comment
  CAS-BOT-BC330488  Pentachaeta aurea Theodore Payne 1910-4-17 s.n. Orange El Toro, near the epot Comment
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Apr 24 2021
  UC1952548  Pentachaeta aurea D. Bramlet 1994-4-1 2367 Orange San Joaquin Hills. Camarillo Canyon area, some 427 m West of Laguna Canyon road and 671 m N of Camarillo Canyon. Comment
  RSA0060231  Pentagramma triangularis R. H. McArthur 1934-4-14 s.n. Orange Forks of Laguna Canyon. 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
  RSA0060347  Pentagramma triangularis Gary D. Wallace, G. Cromwell 1966-4-16 459 Orange W edge of Cleveland Nat. For. about 5 mi. E of San Juan Capistrano, in the Santa Ana Mountains, in Hot Springs Canyon. Comment
  POM201639  Perideridia gairdneri subsp. gairdneri L. M. Booth 1932-8-5 1354 Orange Lomita Land Co. Comment
  HSC3893  Peritoma arborea J. W. Johnson 1961-3-29 Orange Newport Beach, N slope overlooking upper Newport Bay Comment
  LA204537  Peritoma arborea A. H. Lange; 1951-4-26 sn Orange Balboa Comment
  POM4186  Petunia parviflora L. R. Abrams 1901-6-13 1775 Orange Laguna Comment
  UC537279  Petunia parviflora L. M. Booth 1932-12-16 1378 Orange near coast Santa Ana River Comment
  POM49689  Phacelia cicutaria var. hispida L. R. Abrams 1901-06 1820 Orange Santiago Peak trail. Comment
  RSA741475  Phacelia cicutaria var. hubbyi R. E. Riefner Jr. 2008-5-30 8 -123 Orange Near City of Orange, Santiago Creek, vicinity of Jackson Ranch Rd. at Santiago Creek Rd., near the power-line crossing, Irvine Ranch Reserve, Management Area 15. Comment
  RSA738989  Phacelia ciliata Norland 1929-3-16 s.n. Orange Huntington Beach Comment
  RSA500684  Phacelia distans M. B. Dunkle 1935-3-3 4348 Orange San Juan Canyon. 427 Comment
  POM299068  Phacelia distans J. T. Howell 1928-6-24 2590 Orange Olinda. 152 Comment
  RSA605  Phacelia distans J. T. Howell 1927-6-24 209 Orange Olinda 152 Comment
  RSA759105  Phacelia imbricata Robt. Allen, Genevieve K. Walden, Lisa W. Young 2008-6-26 s.n. Orange Modjeska Peak, W-facing slope within 2 m of the access road up Modjeska Peak. Approximately midway between the peak's south-facing slope and the sharp bend in the extreme N end of the road. 1643 Comment
  CAS-BOT-BC145041  Phacelia keckii Le Roy Abrams 1901-6-1 1839 Orange Santiago Peak Comment
  SBBG40448  Phacelia minor J. Ingram 1960-3-29 268 Orange across from O'Neill Park, Trabuco Cyn Comment
  OBI13753  Phacelia minor Barrett Anderson 1975-5-10 s.n. Orange In Cleveland Natl Forest 244 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
  HSC13724  Phacelia parryi S. M. Clapp 1966-4-7 15 Orange 3 mi. from Modjeska Canyon towards Silverado Canyon 152 Comment
  RSA732082  Phacelia parryi A. C. Sanders, Fred M. Roberts 2008-3-25 34551 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills. 259 Comment
  RSA734011  Phacelia parryi A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34620 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir. 366 Comment
  RSA627527  Phacelia parryi Sandy Leatherman, Fred M. Roberts, B. Leatherman, Trish Smith 1998-5-23 22 Orange Black Star Canyon: Spur Road off of Black Star Canyon Road. 335 Comment
  JEPS1031  Phacelia ramosissima var. austrolitoralis L. M. Booth 1932-5-19 1060 Orange Newport Bay Comment
  RSA428279B  Phacelia suaveolens subsp. keckii Albert J. Perkins 1914-6-14 s.n. Orange Santiago Peak. Comment
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Jul 21 2018
  RSA759243  Phacelia suaveolens subsp. keckii Robt. Allen, Lori Whalen 2008-7-5 s.n. Orange Along Harding Canyon Truck Trail, on the ridgeline south of upper Harding Canyon. 1.55 air miles SW of Maple Springs Saddle - Harding Canyon USFS gate, 0.71 air miles due W of BM 5015 on Main Divide Road, W arm of Modjeska Peak., Survey point no. 38 1298 Comment
  POM202123  Phacelia tanacetifolia P. A. Munz 1934-3-26 13133 Orange Newport Beach. 12 Comment
  RSA697796  Phacelia tanacetifolia H. Dittmer 1932-4-6 s.n. Orange Vacant lot - Corner Chapman and Cambridge. Comment
  UCR170305  Phalaris aquatica J. B. Anderson 1966-5-15 642 Orange South Coast, Upper Newport Bay: [Newport Beach] along Irvine Ave. at 23rd Street 15 Comment
  IRVC21636  Phalaris minor R. L. Allen, Fred M. Roberts 1982-7-4 s.n. Orange Carbon Canyon, Carbon Canyon Rd., 0.6km by road SW county line; 2.3km NW Gilman Peak, Chino Hills 250 Comment
  IRVC22183  Phalaris minor Fred M. Roberts 1985-4-11 1642 Orange Dana Point Headlands; Weyerhaeuser Horticultural Research Station property. Southern Coastal 61 Comment
  JEPS45890  Phalaris minor Lawrence M. Booth 1932-5-19 1076 Orange Newport Bay Comment
  RSA0027433  Phalaris minor Fred M. Roberts 2013-7-18 7667 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
  RSA666099  Phalaris minor Fred M. Roberts, Michelle Lee 2001-6-4 5483 Orange Rancho Mission Viejo: Chiquita Ridge, 0.3km WNW Median Rancho Survey Marker. PCR Vernal Pool 4., (Canada Gobernadora: 33 deg 33'11''N, 117 deg 37'18''W) 226 Comment
  UCR102004  Phalaris minor B. G. Pitzer 1997-3-25 3038 Orange San Joaquin Hills, Crystal Cove State Park, Pelican Point Area, on bluffs immediately above beach, along trail that winds around restoration area and down to beach. 30 Comment
  UCR170307  Phalaris minor J. B. Anderson 1966-4-18 597 Orange South Coast, MacArthur Blvd. near Red Hill Road [between Santa Ana and Irvine, NE of John Wayne Airport] 9 Comment
  UCSB47955  Phalaris minor Roberts, Dar 1980-5-4 Orange Camino Capistrano Rd. below bridge (Crown Valley Pkwy.) 30 Comment
  UCR4127  Philadelphus lewisii F. Zaebst 1959-4-19 4127 Orange Peninsular Range; Santa Ana Mtns., Coastal side of mountains on Calif. Hwy 74, 3.2 mi west of San Juan Guard Station, north side of road Comment
  SEINET10876692  Philodendron Thomas B. Croat 2003-4-5 Croat 87598 Orange Cultivated plants from Rick M. Cirino, Cosa Mesa, California. Originally from Brazil? Comment
  UCR133164  Phlox gracilis Adrian Wolf 2000-4-7 452 Orange Santa Ana Mtns., North Ranch Policy Plan Area, North Fremont Canyon, 3 km NNE of canyon mouth 408 Comment
  SBBG40426  Pholistoma auritum J. Ingram 1960-3-29 263 Orange 2 mi above O'Neill Park, Trabuco Cyn Comment
  RSA734206  Phoradendron macrophyllum Keith E. Hoffmaster 1934-4-22 188 Orange Santa Ana Mountains Comment
  UCR234153  Phoradendron macrophyllum Dick Newell 2011-12-27 222 Orange Peninsular Range; Santa Ana Mtns. Region, Lomas de Santiago, along Limestone Canyon Rd. at junction to Dripping Springs Trail 311 Comment
  RSA701967  Phoradendron macrophyllum subsp. macrophyllum Fred M. Roberts 2003-6-20 5929 Orange Rancho Mission Viejo: Donna O'Neil Land Conservancy, Cristianitos Cyn., along Shady Canyon Trail, 84 meters N Sycamore Gate and 50 meters W Cristianitos Rd. 101 Comment
  RSA751289  Phoradendron villosum A. C. Sanders, Fred M. Roberts 2008-7-3 35673 Orange Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor 365 Comment
  POM3998  Phyla lanceolata D. L. Crawford 1916-7-26 s.n. Orange Laguna Canyon Comment
  UC1714568  Phyla lanceolata D. L. Crawford 1916-7-26 Orange Laguna Canyon; Laguna Beach Region, Laguna Canyon Comment
  RSA759147  Phyla nodiflora Robert Allen 2007-4-28 s.n. Orange foothills, along Santiago Creek, N side of Irvine Regional Park 174 Comment
  RSA759260  Phyla nodiflora Robert Allen, Vicky Malton, Raul Murillo Jr. 2008-5-11 s.n. Orange Lomas de Santiago, Whiting Ranch Wilderness Park. Along Santiago Ranch Road. 436 Comment
  RSA683934  Phyllospadix scouleri E. Yale Dawson 1957-2-14 16129 Orange Laguna Beach, Orange County Comment
  RSA683955  Phyllospadix scouleri E. Yale Dawson 1957-11-21 17886 Orange Laguana Beach, Orange County Comment
  RSA682968  Phyllospadix torreyi E. Yale Dawson 1957-2-24 16190 Orange Just nOrth of Dana Point, Orange County Comment
  RSA0127348  Physalis crassifolia Fred M. Roberts 2016-5-3 8051 Orange City of Irvine: San Joaquin Hills, Turtle Rock Community above Ridgeline Road, 0.7 km ESE summit of French Hill. 107 Comment
  RSA597723  Physalis crassifolia D. Bramlet 1994-6-2 2380 Orange San Joaquin Hills. On ridgeline northwest of Laguna Canyon. The site is located 396m west of Laguna Canyon. Rd. and 305m north of Little Sycamore Canyon. Comment
  RSA17043  Picris echioides C. B. Wolf 1936-1-13 7696 Orange Santa Ana Canyon, Rancho Santa Ana, along R. R. right of way east of Ranch Houses. 137 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
Read comments
Nov 18 2009
  RSA799946  Pilularia americana Justin M. Wood 2011-4-12 3658 Orange South Coast: City of Costa Mesa. Fairview Park, just WNW of Marison Special Education Center. 24 Comment
  UC545832  Pilularia americana H. H. Tracy 1935-4-10 Orange n Costa Mesa Comment
  CAS-BOT-BC413832  Pinus attenuata Andrew Townesmith; Karen M. Meyer; Tracy Scott 2007-3-11 677 Orange Cleveland National Forest. Off Long Canyon Road (Forest Service road 6S05). Near entrance to Falcon Group Camp 1000 Comment
  RSA12825  Pinus attenuata C. B. Wolf 1934-12-21 6259 Orange So. slope of main ridge, saddle n.w. of Sugarloaf Pk. (Pleasants Pk.) 1 3/10 mi. so. of summit of Skyline Drive, Santa Ana Mts. 1159 Comment
  RSA23668  Pinus attenuata C. B. Wolf 1939-1-20 9484 Orange Santa Ana Mts., N.W. of Pleasant's Pk. (Sugarloaf) along Main Divide Motorway; 1 3/10 mi. So. of summit, Skyline Dr. Ft. 1159 Comment
  SEINET10879506  Pinus attenuata Andrew Townesmith, Karen M. Meyer; Tracy Scott 2007-3-11 Townesmith 677 Orange Cleveland National Forest. Off Long Canyon Road (Forest Service road 6S05). Near entrance to Falcon Group Camp. 1000 Comment
  UCD169804  Pinus attenuata R. F. Thorne; C. W. Tilforth, E. W. Lathrop 1977-4-27 49694 Orange Northern Santa Ana Mountains: Sierra Peak. Comment
  RSA731002  Pinus coulteri 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
  SEINET4672192 Image available Pinus coulteri T. C. Arambula 1966-1 69 Orange Rancho Santa Ana Botanic Garden Comment
  RSA651141  Pinus radiata Jack D. Ingwersen 1962-6-2 s.n. Orange Anaheim Comment
  UCR132891  Piperia cooperi Adrian Wolf 2000-4-14 446 Orange Santa Ana Mtns., North Ranch Policy Plan Area, 0.51 km SSE of Black Star Canyon Mine, North Baker Canyon Road 396 Comment
  RSA695484  Piqueria trinervia James Snow 1928-09 s.n. Orange Santa Ana Comment
  UCR246481  Plagiobothrys acanthocarpus R. E. Riefner Jr. 2013-3-17 13- 44 Orange South Coast, city of Irvine, Jeffrey Trail, vicinity of Shady Canyon Dr. at Fossil Rd. 47 Comment
  UCSB56510  Plagiobothrys acanthocarpus Marsh, G. 1978-3-17 Orange U.C. Irvine Ecological Preserve; near eastern fence line, drainage separating Hills #1 and #2 Comment
  RSA733873  Plagiobothrys collinus A. C. Sanders, Fred M. Roberts 2008-4-8 34742 Orange Peninsular Range: Lomas de Santiago, Loma Ridge, head of Hicks Canyon. S of Santiago Reservoir. 351 Comment
  UCR191345  Plagiobothrys collinus A. C. Sanders, Fred M. Roberts 2008-4-8 34742 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, head of Hicks Canyon, S of Santiago Reservoir 351 Comment
  SDSU5387  Plagiobothrys collinus var. californicus R. M. Beauchamp 1968-2-17 771 Orange In field on west side of Trabuco Rd, 2 miles north of El Toro Rd. intersection. Comment
  UCR5140  Plagiobothrys collinus var. californicus Barbara T. Gittins, O. F. Clarke 1966-3-19 903 Orange Pacific slope, Irvine Ranch, east of University of California Irvine campus, Newport Beach 91 Comment
  UCSB52455  Plagiobothrys collinus var. californicus Fritzke, Sue; Roberts, Jr., 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
  RSA450857  Plagiobothrys collinus var. californicus Gordon Marsh 1978-3-17 s.n. Orange UC Irvine Ecological Preserve. 98 Comment
  RSA450855  Plagiobothrys collinus var. gracilis Gordon Marsh 1978-3-17 s.n. Orange U.C. Irvine Ecological Preserve. 85 Comment
  RSA588798  Plagiobothrys nothofulvus Fred M. Roberts, D. Bontrager 1990-4-18 4562 Orange Rancho Mission Viejo: ridge between Christianitos and Gabino Canyons (Riverside Cement Lease Holding), 5.5 km SE Playa Survey Marker. 152 Comment
  RSA588771  Plagiobothrys tenellus Fred M. Roberts, Carol A. Roberts, D. E. Bramlet 1990-5-6 4593 Orange Santa Ana Mnts.: Chiquito Basin, San Juan Trail, c.a. 2.5 km SSE Los Pinos Peak. 915 Comment
  RSA412598  Plantago bigelovii subsp. californica Anstruther Davidson 1910-04 2350 Orange Corona Del Mar. Comment
  RSA799623  Plantago elongata subsp. elongata Justin M. Wood 2011-4-12 3655 Orange South Coast: City of Costa Mesa. Fairview Park, just WNW of Marison Special Education Center. 24 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
  RSA0057938  Plantago erecta Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49669 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. Comment
  UCSB56505  Plantago erecta Marsh, K. 1978-3-16 Orange Irvine Ecological Preserve; Hill #1 57 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
  RSA734764  Plantago lanceolata A. C. Sanders, T. B. Salvato 2008-5-13 35345 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
  SD263668  Plantago major Jim Riley 2013-10-15 120 Orange San Clemente area; 0.56 miles ESE intersection Avenida Pico and Camino La Pedriza; just N San Diego County line 68 Comment
  RSA226632  Plantago major Christopher Davidson, Gerald L. Benny 1971-6-15 1546 Orange Brea Canyon, 0.5 mile N of Central Avenue, along Brea Creek, near Brea Oil Co. wells. Comment
  RSA232238  Plantago major James Henrickson 1970-8-29 5309 Orange 3 miles NE of Huntington Beach in pasture just N of Bolsa Chica Salt Marsh. 0 Comment
  SD234464  Platanus racemosa A. C. Sanders, Fred M. Roberts 2008-7-3 35700 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, along Windy Ridge Rd at wash crossing, 0.95 mi. SE of Walnut Canyon Reservoir (Black Star Canyon 7.5' Q) 242 Comment
  RSA0056334  Platanus racemosa Jim Shevock 1970-4-25 154 Orange Highway 74. 309 Comment
  CAS-BOT-BC354033  Plecostachys serpyllifolia R. E. Riefner, Jr. 2013-12-12 13 -377 Orange City of Dana Point, beach near Salt Creek, vicinity of Ritz Carlton Resort 2 Comment
  CDA5356  Plecostachys serpyllifolia R. E. Riefner Jr. 2006-7-26 06 -319 Orange City of Irvine, along north side of Irvine Boulevard at SR 133 on-ramp. Comment
  CHSC106005  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. UTM: 11S 0432734E 3704750N. 2 Comment
  SD239618  Plecostachys serpyllifolia R. E. Riefner Jr. 2011-7-7 11 88 Orange City of Dana Point, S of Mussel Cove, N of Salt Creek Beach Park. 7 Comment
  SD247344  Plecostachys serpyllifolia R. E. Jr. Riefner 2008-7-9 08 220 Orange City of Laguna Beach, bluff area W of West St. and Pacific Coast Highway. 4 Comment
  UCR222656  Plecostachys serpyllifolia R. E. Riefner Jr. 2008-10-22 08- 312 Orange South Coast, city of Laguna Beach, ocean bluff vicinity of West St. and Pacific Coast Highway 6 Comment
  RSA751406  Plecostachys serpyllifolia R. E. Riefner Jr. 2007-4-28 07 -190 Orange City of Newport Beach, Dover Beach, vicinity of Morning Star Ln., and Polaris Dr. 8 Comment
  RSA751481  Plecostachys serpyllifolia R. E. Riefner Jr. 2008-10-22 08 -312 Orange City of Laguna Beach, ocean bluff vicinity of West St. and Pacific Coast Highway. 5 Comment
  RSA801997  Plectritis ciliosa Keith E. Hoffmaster 1935-5-5 971 Orange San Juan Canyon., Santa Ana Mts. Comment
  CDA20039  Pluchea odorata J. Dourte 2002-9-13 PDR 1254189 Orange Southwestern California; Santa Ana River in the vicinity of Anaheim. 0 Comment
  RSA542591  Pluchea odorata Fred M. Roberts, Doug Willick 1988-9-16 4138 Orange Peralata Hills: Oak Canyon Nature Center, Upper Walnut Canyon, 1.0 kilmeter N Robbers Peak. 180 Comment
  RSA719408  Pluchea odorata Fred M. Roberts, Robert L. Allen 2006-10-8 6427 Orange San Juan Capistrano: San Juan Creek Flood Control Channel, c.a. 0.2 to 0.3km N Stonehill Dr. bridge and 1.1km SSE Marco Forster Jr. High Sch. 4 Comment
  UCR146415  Pluchea odorata Sandra L. Leatherman 1998-9-3 45 Orange Coastal Plains & Basins; South Coastal Plain, Dana Point: Monarch Beach, northeast of the intersection of State Highway 1 and Crown Valley Parkway, and west of Salt Creek 30 Comment
  RSA472110  Pluchea odorata Albert J. Perkins 1912-8-22 s.n. Orange Aliso Canyon, near Thursteria Ranch Comment
  UCD134968  Pluchea odorata var. odorata A. C. Sanders 1990-10-6 10185 Orange Newport Bay, North Star County Beach area on the SW end of the bay, around 2 km inland of Highway 1. 1 Comment
  UC1070061  Pluchea sericea A. Lewis Mar 1934 333 Orange Santa Ana Canyon Corona Quad. 121 Comment
  SEINET3123526 Image available Poa annua A. C. Sanders, T. B. Salvato 2008-1 35357 Orange Peninsular Range; Santa Ana Mtns.; Lomas de Santiago, Santiago Canyon above (S of) mouth of Hangman Tree Canyon, just below Modjeska Canyon confluence 366 Comment
  IRVC19543  Poa pratensis R. L. Allen 1983-1 s.n. Orange Irvine: near NE corner of Culver at Irvine Blvd. Southern Coastal Comment
  IRVC22700  Poa scabrella Fred M. Roberts 1985-5-9 1784 Orange Santa Ana Mountains: Upper McVicker Canyon, 1.8km NE Los Pinos Peak. Peninsular Ranges 1113 Comment
  SEINET10791987  Poa scabrella Robert F. Thorne, Earl W. Lathrop 1977-5-18 Thorne 49746 Orange Santa Ana Mountains, summit of Santiago Peak. 1733 Comment
  SD181748  Poa secunda subsp. secunda Valerie Soza, LeRoy Gross 1999-6-7 489 Orange Santa Ana Mountains, west side of Modjeska Peak, along Main Divide Road 1448 Comment
  RSA716658  Polycarpon tetraphyllum Fred M. Roberts 2005-5-13 6187 Orange San Juan Capistrano; Ortega Ranch Business Center site, between Rancho Viejo Rd. and I-5 freeway adjacent to Horno Creek; 0.6km NE Mission San Juan Capistrano. 54 Comment
  UCR158809  Polygala cornuta subsp. fishiae A. C. Sanders, Mark A. Elvin 2005-9-2 31611 Orange Santa Ana Mtns., upper Holy Jim Canyon, a major tributary of Trabuco Canyon, along the trail in the switchbacks 970 Comment
  SD245439  Polygala cornuta var. fishiae Robert 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
  RSA466307  Polygonum coccineum J. Ewan 1931-7-31 4754 Orange Wesefall near Hungtinton Beach. Comment
  RSA6067  Polygonum hydropiperoides Carl B. Wolf 1932-6-13 3719 Orange Storm drain at Malvern and Nicholas Aves; Fullerton. 53 Comment
  UC536916  Polygonum lapathifolium Lawrence M. Booth 1932-6-28 1221 Orange Bolsas Marsh Comment
  UCR150563  Polygonum lapathifolium Scott D. White, Matt Carlton 2003-11-20 9869 Orange South Coastal Plain, Santa Ana Mtn foothills. San Juan Creek in San Juan Capistrano 24 Comment
  HSC1110  Polypodium californicum J. W. Johnson 1961-4-2 Orange Newport Beach, on steep cliff along upper Newport Bay Comment
  IRVC20324  Polypodium californicum Fred M. Roberts 1982-12-10 848 Orange Laguna Beach: Upper Park Canyon, west flank of Temple Hill, 1.8km NEof Thurston School, 0.8km WNW of Top of the World School. Southern Coastal 240 Comment
  IRVC3043  Polypodium californicum C. Thompson 1965-4-15 HS0570 Orange Trabuco Canyon. Santa Ana Mountains Comment
  RSA617721  Polypodium californicum Scott D. White 1996-12-20 4629 Orange Above Modjeska Canyon: Proposed water tank site. 427 Comment
  RSA732242  Polypodium californicum A. C. Sanders, Fred M. Roberts 2008-4-22 35054 Orange Penisular Range; Lomas de Santiago, Loma Ridge c. 1/4 mi. SE of VABM Bee, above Bee Canyon landfill on road from Hicks Canyon Haul Rd. to Limestone Canyon. c. 3.5 mi. WSW of Silverado 493 Comment
  RSA749436  Polypodium californicum Fred M. Roberts 2008-4-14 6890 Orange Santa Ana Mtns.: Upper Weir Cyn., east fork, 3.4 km E Robbers Peak, Irvine Ranch Conservancy. 433 Comment
  RSA85017  Polypodium californicum F. W. Peirson 1925-4-11 5729 Orange slope above mill, in Silverado Canyon, Santa Ana Mountains 914 Comment
  UCR209523  Polypodium californicum Fred M. Roberts 2008-4-16 6907 Orange South Coast, Dana Point Headlands, Center for Natural Lands Mgmt. Preserve, 0.8 km west of the Marine Institute, Dana Point Harbor 45 Comment
  UCSB62521  Polypodium californicum Kiefer, Lawrence 1963-12-8 Orange Santa Ana Mountains; along road in main canyon above Silverado 457 Comment
  CAS-BOT-BC232960  Polypogon australis Carl B. Wolf 1932-6-13 3723 Orange Fullerton, Malvern and Nicholas Avenues 53 Comment
  IRVC12899  Polypogon monspeliensis B. T. Gittins 1967-6-11 2010 Orange Upper Newport Bay. southern coastal Comment
  IRVC21785  Polypogon monspeliensis Fred M. Roberts 1985-2-25 1456 Orange Irvine: Irvine Ranch; east of MacArthur Blvd., 1.2km W UCI campus; 1.7km SE Bay View School. Southern Coastal 24 Comment
  IRVC22745  Polypogon monspeliensis Fred M. Roberts 1985-5-15 1806 Orange San Joaquin Hills: Laguna Canyon; Laguna Lakes, northernmost pond, south margin, 5km ENE Signal Peak. southern coastal 114 Comment
  UCR193434  Polypogon monspeliensis A. C. Sanders, Fred M. Roberts 2008-5-6 35239 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, head of Hicks Canyon, south of Santiago Reservoir 351 Comment
  RSA0045354  Polypogon monspeliensis Keith E. Hoffmaster 1935-3-28 119 Orange West of Costa Mesa. Comment
  RSA697034  Polypogon monspeliensis Rankin s.n. Orange Costa Mesa Comment
  RSA644958  Populus balsamifera subsp. trichocarpa R. E. Riefner, Adrian Wolf 2000-1-24 20 -116 Orange NCCP North Ranch Policy Plan Area. Fremont Canyon: N of Saniago Creek and immediately N. of major stream fork. 305 Comment
  RSA752893  Populus balsamifera subsp. trichocarpa A. C. Sanders, Fred M. Roberts 2008-8-7 35974 Orange lower Weir Canyon, at narrow gorge c. 0.6 mi. above mouth of cyn at Irvine Ranch gate. 185 Comment
  UCR174187  Populus balsamifera subsp. trichocarpa A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33023 Orange Peninsular Range; Santa Ana Mtns., San Juan Canyon, from Lower San Juan Picnic Area to c. 1 mile downstream, parallel to Hwy 74 and near Riverside Co. line 396 Comment
  IRVC27726  Populus fremontii subsp. fremontii Mark A. Elvin 2004-5-2 3430 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7km (air) NNW UC Irvine campus center. Southern Coastal 3 Comment
  CLARK-A1528-4065  Populus trichocarpa Alfred R. Roos 1936-2-9 1535 Orange Santa Ana Canyon Comment
  RSA5326  Populus trichocarpa B. D. Stark 1932-12-30 4469 Orange Rancho Santa Ana. River bottom below Mexican houses. 122 Comment
  RSA599636  Populus trichocarpa Fred M. Roberts Jr., P. Barrett, Gina Schultz 1995-7-25 4965 Orange San Juan Capistrano: San Juan Creek, 0.1 km SW La Novia Street bridge. 27 Comment
  UCR182825  Populus trichocarpa R. E. Riefner Jr. 2006-9-16 06- 434 Orange Yorba Linda, north of Chapman Ave. c. 1 mile along floodplain of Santa Ana River 98 Comment
  JEPS34991  Porophyllum gracile Ethel Rockwell Orange Santa Ana Mts., Trabuco Canyon Comment
  UCR26999  Porophyllum gracile E. W. Lathrop 1966-4-18 6188 Orange Santa Ana Mtns., 4 mi NE of Lake Irvine, Black Star Canyon, Cleveland National Forest, Trabuco District Comment
  RSA184102  Portulaca oleracea I. L. Wiggins 1965-11-7 20360 Orange Vacant lot between State College Blvd. and Troy High School Campus, Fullerton. Comment
  RSA50431  Prunella vulgaris var. lanceolata G. R. Campbell 1949-6-28 13991 Orange grown in Botanic Garden. Comment
  RSA542401  Prunus ilicifolia Fred M. Roberts Jr. 1986-11-5 3209 Orange Main Divide Truck Trail, 1.8 km WNW Pleasants Peak. 1130 Comment
  RSA658197  Prunus ilicifolia T. A. Daubert 1991-5-19 648 Orange Tucker Wildlife Sanctuary, Modjeska Canyon inside sanctuary. Comment
  RSA699853  Prunus ilicifolia J. Vlahos 1934-4-22 s.n. Orange Harding Canyon Comment
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Jun 10 2012
  CAS-BOT-BC356379  Pseudognaphalium beneolens John Thomas Howell 1927-7-16 2782 Orange Hills on north side of Santa Ana Canon [Canyon] 152 Comment
  JEPS20431  Pseudognaphalium biolettii L. M. Booth 1932-5-19 1067 Orange Newport Bay Comment
  RSA609007  Pseudognaphalium biolettii L. M. Booth 1932-5-19 1067 Orange Newport Bay Comment
  RSA696918  Pseudognaphalium biolettii Snow 1929-3-11 36 Orange W. of Orange Co. Park Comment
  RSA697115  Pseudognaphalium biolettii Minor Warne 1934-4-14 s.n. Orange Laguna Canyon Forks. Comment
  UC468798  Pseudognaphalium californicum C. F. Millspaugh 1920-2-7 4697 Orange Pebble Beach Road Comment
  UCR119300  Pseudognaphalium canescens subsp. canescens R. E. Riefner Jr. 2000-8-8 20- 724 Orange Peninsular Range, Santa Ana Mountains, North Ranch Policy Plan Area, NE property, E slope of upper Fremont Canyon, south of Donaldson Ranch and south of powerline/ National Forest boundary 454 Comment
  CHSC108408  Pseudognaphalium leucocephalum R. E. Riefner Jr. 2007-2-13 07 -55 Orange City of San Juan Capistrano, vicinity of La Novia Ave. and San Juan Creek. 31 Comment
  OBI74762  Pseudognaphalium leucocephalum Unknown 2007-2-13 Jul- 55 Orange City of San Juan Capistrano, vicinity of La Novia Ave. and San Juan Creek 31 Comment
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Dec 14 2012
  UC2027329  Pseudognaphalium leucocephalum Robert Lee Allen 2012-8-11 Orange Santa Ana Mts, Caspers Wilderness Park, Bell Canyon. Comment
  UCR222661  Pseudognaphalium leucocephalum R. E. Riefner Jr. 2008-8-5 08- 259 Orange Peninsular Range; Santa Ana Mtns., Irvine Ranch Reserve, Fremont Canyon Conservation Easement, lower Fremont Canyon, main drainage 223 Comment
  CAS-BOT-BC357569  Pseudognaphalium stramineum Mark A. Elvin; P. A. Bowler 2006-5-13 4861 Orange Southern Coastal: Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7km (air) NNW UC Irvine campus center 3 Comment
  CAS-BOT-BC357570  Pseudognaphalium stramineum Ira L. Wiggins 1966-3-18 20533 Orange Experimental Garden behind greenhouse, California State College at Fullerton Comment
  IRVC1817  Pseudosasa japonica V. Riley 1967-2-21 Orange Balboa Island. southern coastal Comment
  IRVC20774  Pseudotsuga macrocarpa Fred M. Roberts 1980-5-3 63 Orange Main Divide Truck Trail, 0.4km W Trabuco Peak. Santa Ana Mountains 1341 Comment
  MACF019844  Pseudotsuga macrocarpa C. T. O'Dowd 1975-5-21 3 Orange Santiago Canyon Road, Cleveland National Forest 731 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
  IRVC27016  Psilotum nudum A. C. Sanders, Mark A. Elvin 2003-11-9 27356 Orange Irvine: UCI Arboretum, UCI campus near intersection of Jamboree Blvd. and Campus Dr. Southern Coastal 15 Comment
  POM8723  Pterostegia drymarioides P. A. Munz, R. D. Harwood 1920-4-17 3802 Orange Laguna Canyon. 61 Comment
  RSA607243  Pterostegia drymarioides R. S. Woglum 1938-5-8 1618 b Orange Peninsular Ranges: Capistrano to Elsinore; Santa Ana Mountains [Orange/Riverside counties]. Comment
  RSA678493  Pterostegia drymarioides Fred M. Roberts, Robert L. Allen, Carol Roberts 2003-5-11 5850 Orange Dana Point Headlands: 0.8km SSW Richard Henry Dana School north of Marguerita Drive. 76 Comment
  UCSB43273  Pterostegia drymarioides Fletcher, Martin 1980-3-29 Orange 0.5 miles west of Drakes Beach. Comment
  RSA407877  Pulicaria hispanica Walter Wisura, B. Busenberg 1987-7-23 4170 Orange Newport Bay at jctn. of Back Bay Drive and San Joaquin Hills Road. Comment
  CAS-BOT-BC362146  Pulicaria paludosa Robert L. Pope 1959-8-14 s.n. Orange Ray Miller prop., Santa Ana Canyon, e. of Fullerton Comment
  RSA750903  Pulicaria paludosa A. C. Sanders, Fred M. Roberts 2008-7-3 35710 Orange Weir Canyon, along Weir Canyon Rd. 1.2 mi. SSE of Walnut Canyon Reservoir, below Upper Blind Canyon Rd. 212 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
  UCD47714  Quercus X acutidens John M. Tucker 1941-5-30 255 Orange Low shrub, in San Juan Canyon, 200 yards west of San Juan Guard Station, Highway 74, Orange County, California. Comment
  POM256729  Quercus X grandidentata W. Pequegnat 1940-6-18 s.n. Orange About 1 mile NW Sierra Peak. Santa Ana Mts. 762 Comment
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Aug 2 2020
  RSA697623  Quercus agrifolia R. H. McArthur 1934-3-10 s.n. Orange Santiago Canyon. Canyon bottom. Comment
  RSA735196  Quercus agrifolia Keith E. Hoffmaster 1927-4-8 408 Orange Santa Ana Mountains. Comment
  UC484237  Quercus agrifolia C. B. Wolf 1932-3-6 Orange 1.5 mi below Trabuco Oaks (on Trabuco Canyon Road, w slope Santa Ana Mts.); Santa Ana Mts. 304 Comment
  UCSC009093  Quercus agrifolia var. agrifolia Al Keuter 2015-3-25 10- 17 -3 Orange SR 133 near Laguna Beach 46 Comment
  IRVC16135  Quercus berberidifolia R. Meinzer, T. Mulroy 1971-4-25 s.n. Orange Santa Ana Mountains: Upper Trabuco Canyon. Peninsular Ranges 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
  RSA588843  Quercus berberidifolia Fred M. Roberts 1989-11-7 4454 Orange Rancho Mission Viejo: TRW Lease Holding, ridge south of the confluence of Gabino and Blind Canyons, 5.0 km NE Clement Survey Market. 155 Comment
  UCR119315  Quercus berberidifolia R. E. Riefner Jr. 2000-1-18 20- 103 Orange Peninsular Range, Santa Ana Mountains: North Ranch Policy Plan Area, Main Divide Road, top of Gypsum Canyon at Windy Ridge 518 Comment
  UCR119317  Quercus berberidifolia R. E. Riefner Jr. 2000-7-8 20- 627 Orange Santa Ana Mountains, North Ranch Policy Plan Area, on ridgetop overlooking W fork of Fremont Canyon, east of Main Divide Road along the powerline 396 Comment
  UCR132989  Quercus berberidifolia Adrian Wolf 2000-7-3 448 Orange Santa Ana Mtns., 0.4 km SE of Black Star Canyon mouth 290 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
  UCSB58638  Quercus berberidifolia Muller, Cornelius 1953-5-2 Orange Swain Canyon, lower end, Santa Catalina Island Comment
  LA46913  Quercus chrysolepis C. B. Wolf; E. R. Johnson 1933-11-3 5528 Orange Santa Ana Mountains, Main Divide Motorway, W side of Modjeska Peak 1371 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
  JEPS83585  Quercus dumosa Teresa Sholars, Judith Greenlee, and Fred Roberts 1988-3-29 817 Orange Dana Point Headlands, ca 50 m e of ocean bluff Dana Point Headlands Comment
  RSA584719  Quercus dumosa Fred M. Roberts, Wade 1989-6-21 4391 Orange San Joaquin Hills; Los Trancos Canyon, 1km E summit of Pelican Hill. 98 Comment
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Oct 16 2013
  UCSB52929  Quercus dumosa Roberts, Fred; Marsh, K. 1983-5-26 Orange Dana Point Headlands; north of Dana Strand Rd., 0.5 km. W Dana Point Harbor; 0.8 km. SSW Richard Henry Dana School 82 Comment
  SEINET12031055  Quercus dumosa S. A. Thompson, Rawlins, J. E. 1988-1 5259 Orange Cleveland National Forest, 3.8 mi E of San Juan Hot Springs on CA 74 370 Comment
  RSA702211  Quercus engelmannii Fred M. Roberts, Robert L. Allen 2004-1-16 6019 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, Cristianitos Cyn., 0.56 km SSW Gato Gate and 0.15km W of Cristianitos Rd. 92 Comment
  CAS-BOT-BC105117  Quercus kelloggii J. K. Munhall; S. E. Gooden 1945-11-8 11511 Orange head of Horsethief Canyon 1143 Comment
  SEINET7766843  Quercus wislizeni Unknown 1966-8-22 2389 Orange O'Neill State Park Comment
  IRVC24473  Quercus wislizeni var. frutescens Fred M. Roberts, R. L. Allen 1986-2-23 2595 Orange Santa Ana Mountains; W of Main Divide Truck Trail; 2.1km E Los Pinos Peak. Peninsular Ranges 1115 Comment
  UC1135919  Quercus wislizeni var. frutescens A. Lewis May 1934 418 Orange Trabuco Canyon Cleveland National Forest, Elsinore Quad. 1371 Comment
  UCR144740  Quercus wislizeni var. frutescens Gordon Marsh, Karlin G. Marsh 1985-9-27 s.n. Orange Santa Ana Mtns., Pine Canyon, 4.1 km NW of Modjeska Peak 805 Comment
  RSA220970  Rafinesquia californica E. W. Lathrop 1966-4-18 6178 Orange 4 mi NE of Lake Irvine, Black Star Canyon, Cleveland National Forest, Trabuco District. Comment
  IRVC14751  Rafinesquia californica A. S. Boughey 1968-4-16 242 Orange Santiago Canyon/Lower Modjeska Cyn, Fleming Property. Santa Ana Mountains Comment
  RSA724035  Ranunculus arvensis R. E. Riefner 2000-4-2 0 -166 Orange Santiago Equestrian Center, Santiago Canyon Rd., N 0.5 m from Ridgeline Rd., Oso Creek drainage. 392 Comment
  JEPS55026  Ranunculus californicus Alice King 1908-3-9 Orange South Main Street Santa Ana Comment
  IRVC1127  Raphanus raphanistrum J. Pierce 1965-4-16 Orange Corona del Mar. Newport Beach Comment
  IRVC1158  Raphanus sativus D. Orr 1965-3-27 Orange Trabuco Rd. 3mi E El Toro Marine Base. El Toro Comment
  IRVC19391  Raphanus sativus R. L. Allen 1983-2-12 A623 Orange Fullerton; Hillcrest Park, slope bordering E Valley View Drive. Southern Coastal Comment
  CDA1075  Rhamnus alaternus D. G. Kelch 2006-12-9 6 .546 Orange Along Newport Back Bay Dr. in side canyon. Comment
  SEINET3075983 Image available Rhamnus californica Reid Moran 1975-7-18 22598 Orange Common near Yaeger Mine, upper Trabuco Canyon, Santa Ana Mountains. 725 Comment
  SEINET3075984 Image available Rhamnus californica Reid Moran 1975-7-18 725 Orange Common in bottom of upper Trabuco Canyon, Santa Ana Mountains. 725 Comment
  UCR26626  Rhamnus californica E. W. Lathrop 1966-5-1 6260 Orange Santa Ana Mtns., 5 mi east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest 400 Comment
  HSC25243  Rhamnus ilicifolia Richard Spjut 1972-2-22 2226 Orange W of the Cleveland National Forest in the Santa Ana Mtns. along Hwy. 74 152 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
  RSA184091  Rhamnus ilicifolia I. L. Wiggins 1966-2-25 20473 Orange Firestone Boy Scout Reservation in hills E. of Brea. Comment
  UCR234142  Rhamnus ilicifolia Dick Newell, Judy Booth 2012-3-30 242 Orange Peninsular Range; Santa Ana Mtns., Maple Springs Road, Cleveland National Forest 258 Comment
  RSA644972  Rhamnus tomentella subsp. cuspidata R. E. Riefner 2000-4-13 20 -360 Orange NCCP North Ranch Policy Plan Area. Upper drainage of Fremont Canyon near National Forest boundary, S. of Claymore Mine. USGS 7.5' Quad: Black Star Canyon. 610 Comment
  RSA743467  Rhaphiolepis indica Fred M. Roberts, Carol A. Roberts 2008-9-28 7116 Orange Dana Point: Dana Point Headlands, CNLM Preserve, near Strands Road Gate, 0.8km WNW Marine Institute, Dana Point Harbor. 65 Comment
  UC1094403  Rhaponticum repens John W. Ingram 1953-12-1 Orange 2 mi n, on State Highway 39 Huntington Beach Comment
  CAS-BOT-BC167879  Rhus integrifolia John Thomas Howell 1927-7-29 2871 Orange Hills on n. side of Santa Ana [Canon] Canyon 243 Comment
  IRVC68  Rhus integrifolia A. S. Boughey, P. Pembrook 1965-7-16 1011 Orange Los Trancos Canyon, near spring, ; chaparral. San Joaquin Hills Comment
  UCR159782  Rhus integrifolia Peter A. Bowler 2003-4-26 s.n. Orange Southern Coastal, UC San Joaquin Freshwater Marsh Reserve; along marsh road 5 Comment
  UCR131883  Rhus laurina J. Mallory, V. McCoy 1995-7-3 6454- 83 Orange Santa Ana Mountains: N-facing slope in Santiago Canyon, c. 0.5 mi. east of Santiago Canyon Rd; near Irvine Park 200 Comment
  RSA696478  Rhus ovata Anonymous 1933-5-6 s.n. Orange Black Star Canyon [county not specified] Comment
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Jun 10 2012
  UCR131871  Rhus ovata J. Mallory, V. McCoy 1995-6-30 6454- 64 Orange Santa Ana Mountains: S-facing slope on Windy Ridge, c. 2.5 mi. south of 91 fwy. Comment
  CAS-BOT-BC93074  Ribes californicum var. hesperium Carl B. Wolf 1931-1-30 1825 Orange Claymine Canyon, Santa Ana Mountains. 457 Comment
  CAS-BOT-BC93108  Ribes californicum var. hesperium Ira L. Wiggins 1966-2-4 20409 Orange Trabuco Canyon, about 2 miles above entrance. Comment
  RSA0023263  Ribes californicum var. hesperium Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49779 Orange Santa Ana Mountains: Trabuco Canyon. Comment
  CAS-BOT-BC173127  Ribes indecorum C. B. Wolf 1931-3-6 1833 Orange 1 1/2 miles below Trabuco Oaks along Trabuco Canyon road, west slope Santa Ana Mts. 304 Comment
  UCR240082  Ribes indecorum Dick Newell, Don Millar 2012-5-22 259 Orange Peninsular Range; Santa Ana Mtns., on Lake View Rd. above Irvine Lake at State Spur Rd. 564 Comment
  CAS-BOT-BC168941  Ribes malvaceum B. D. Stark 1932-2-22 2662 Orange Rancho Santa Ana, Santa Ana Canyon, in canyon west of Roundtop Peak 457 Comment
  CAS-BOT-BC402201  Ribes malvaceum R. F. Thorne; C. W. Tilforth; E. W. Lathrop 1977-4-27 49706 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  RSA0021665  Ribes malvaceum Keith E. Hoffmaster 1932-4-17 517 Orange Santa Ana Mts. [Orange/Riverside Cos] Comment
  RSA3132  Ribes malvaceum var. viridifolium B. D. Stark 1932-2-22 2662 Orange Canyon W of Roundtop, Rancho Santa Ana. 457 Comment
  SD27978  Ribes malvaceum var. viridifolium B. D. Stark 1932-2-22 Orange Rancho Santa Ana, Santa Ana Canyon, in canyon west of Roundtop Peak. 456 Comment
  SD247657  Ribes malvaceum var. viridifolium R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 46706 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  LA205494  Ribes roezlii W. E. Pequegnat; 1937-8-11 sn Orange Santa Ana Mountains, Santiago Peak Comment
  RSA0016149  Ribes roezlii Keith E. Hoffmaster 1932-4-17 519 Orange Santa Ana Mts. [Orange/Riverside Cos] Comment
  CAS-BOT-BC173740  Ribes speciosum C. B. Wolf 1931-3-6 1863 Orange 1 mi. no. of mouth of Harding Canyon, west slope of Santa Ana Mts. 304 Comment
  RSA658211  Ribes speciosum T. A. Daubert 1991-5-19 661 Orange Tucker Wildlife Sanctuary, Modjeska Canyon inside sanctuary. Comment
  RSA734881  Ribes speciosum R. H. McArthur 1934-3-17 s.n. Orange Gypsum Canyon. Comment
  UCR274186  Ribes speciosum Dick Newell, Don Millar 2015-12-1 415 Orange South Coast, San Joaquin Hills, Buck Gully, Newport Beach, 0.63 mile WSW of San Joaquin Road and Newport Ridge Dr. 123 Comment
  SD175819  Ricinus communis D. G. Kelch 2006-12-9 06 560 Orange Irvine. University Dr. along tidal creek just E of I-73. 9 Comment
  RSA18533  Ricinus communis C. B. Wolf 1927-7-23 664 Orange Along the coast just north of San Clemente. Comment
  RSA650824  Ricinus communis Daniel Truong 1991-5-5 2 Orange Irvine Regional Park, left field adjacent to main entrance, within 1/4 mile radius of ''closed area. Comment
  RSA17464  Romneya coulteri Percy C. Everett 1936-9-19 8270 Orange Santa Ana Moutains, Silverado Canyon. In vicinity of forest service road gate. 762 Comment
  RSA446208  Romneya coulteri M. B. Dunkle 1933-5-30 3573 Orange Santa Ana River Canyon Comment
  RSA658201  Romneya coulteri T. A. Daubert 1991-5-19 656 Orange Tucker Wildlife Sanctuary, Modjeska Canyon, turn around island. Comment
  RSA722425  Romneya coulteri Minor Warne 1934-4-21 s.n. Orange Junction Santiago and Black Star Canyons. Comment
  UCR193373  Romneya coulteri A. C. Sanders, T. B. Salvato 2008-5-13 35373 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
  UCR224309  Romneya coulteri Justin M. Wood 2010-5-12 1685 Orange Santa Ana Canyon, Santa Ana River floodplain, 0.25 mi north of Coal Canyon Wildlife Corridor, west of Green River Golf Course on bluff south of the river 122 Comment
  CAS-BOT-BC92179  Romneya coulteri var. coulteri John Thomas Howell 1927-7-24 2833 Orange Floor of Claymine Canon [Canyon], north Santa Ana Mountains. 152 Comment
  POM144067  Rorippa curvisiliqua L. R. Abrams 1901-06 1768 Orange Laguna - Lake Comment
  JEPS53807  Rorippa nasturtium-aquaticum Alice King 1908-1 Orange Santa Ana Comment
  UCR236676  Rosa californica Fred M. Roberts 2008-6-12 7038 Orange Santa Ana Mtns. Foothills, Lomas de Santiago; Loma Ridge, Shoestring Canyon, Shoestring Road near jct. with Santiago Cyn. Rd. 251 Comment
  RSA5356  Rubus ursinus B. D. Stark 1933-1-4 4493 Orange Bottom of Claymine Canyon. No. end of Santa Ana Mts. 305 Comment
  RSA542399  Rubus ursinus Fred M. Roberts Jr. 1987-3-31 3293 Orange Lomas de Santiago: Lomas Ridge, Upper Serrano Canyon east fork, 2.9 km SE Bolero Lookout. 327 Comment
  RSA0035069  Rubus vitifolius K. Kneen 1933-4-8 s.n. Orange Pacific Palisades. 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
  JEPS39877  Rumex crispus Lawrence M. Booth 1932-5-12 1051 Orange Newport Bay Comment
  RSA74870  Rumex crispus Elroy Robinson 1935-6-28 s.n. Orange Anaheim, Santa Fe Railway. Comment
  RSA4502  Rumex hymenosepalus Carl B. Wolf 1932-3-15 2712 Orange 1 mi. W of Atwood, lower end of Santa Ana Canyon. 76 Comment
  RSA539350  Rumex hymenosepalus Fred M. Roberts, Karlin G. Marsh 1989-3-7 4199 Orange Lomas de Santiago: Loma Ridge, Hicks Canyon, 2.3km W Bee Survey Mark. 152 Comment
  UCR158464  Rumex maritimus Adrian Wolf 1998-5-27 334 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
  POM186339  Rumex maritimus Joseph A. Ewan 1932-7-29 7734 Orange Lagoon in back of Newport Beach, above Tule marsh. Comment
  RSA591512  Rumex obtusifolius John Ko 1996-4-19 s.n. Orange San Joaquin Hills, Irvine, SBBM approx. 750 ft SW of Bonita reservoir. Approx. 1000 ft. N of Ford Road. 49 Comment
  UCR107843  Rumex salicifolius Scott D. White 1998-3-24 6231 Orange Irvine. Univ. of Calif. Irvine Campus: Site of proposed Research Park. SW of main campus circle, c. halfway between Berkeley Av. and new freeway (Bonita Cyn) 37 Comment
  HSC25555  Ruppia maritima James Henrickson 1970-7-24 5023 Orange 3 mi. NW of Huntington Beach, Inner Bolsa Bay, along margins of bay 0 Comment
  SFV20020  Salicornia depressa A. Dittmer, S. Dark 2004-10-3 75 Orange Bolsa Chica wetlands. South side of public parking lot off Highway 1. Comment
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Feb 9 2020
  RSA268  Salicornia virginica J. T. Howell 1927-10-29 788 Orange Bryant Ranch, near Long Beach. 15 Comment
  RSA478904  Salicornia virginica Albert J. Perkins 1917-10-14 s.n. Orange Salt marsh at mouth of Aliso Canyon. Comment
  UC213449  Salicornia virginica I. M. Johnston 1918-9-3 2152 Orange Laguna Beach 6 Comment
  UC536964  Salicornia virginica Lawrence M. Booth 1932-6-9 1182 Orange Newport Bay Comment
  UCR108429  Salicornia virginica L. C. Wheeler 1946-9-28 6384 Orange Newport Bay, Newport Bay 5 Comment
  RSA70037  Salicornia virginica F. W. Peirson 1924-8-29 5081 Orange 2.5 miles from Balboa on road inland along creek. Comment
  UCR140886  Salix discolor Robert DeRuff 1987-2-1 334 Orange Southern Coast, Newport Beach, along Back Bay Drive north of Big Canyon 2 Comment
  RSA4247  Salix exigua Carl B. Wolf 1932-4-15 2953 Orange Rancho Santa Ana, near Santa Ana River and south of pear orchard, Santa Ana Canyon. 122 Comment
  RSA5307  Salix exigua B. D. Stark 1933-1-7 4510 Orange Rancho Santa Ana, river bottom below ranch houses. 122 Comment
  RSA703731  Salix exigua Fred M. Roberts, David E. Bramlet 2004-7-30 6091 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, Cristianitos Cyn. along Cristianitos Ck., 1.1 km SSW Gato Gate and 0.32km W Cristianitos Road. 73 Comment
  UC472126  Salix exigua var. hindsiana I. J. Condit 1908-7-20 Orange Los Alamitos Comment
  CAS-BOT-BC108134  Salix gooddingii Carl B. Wolf 1932-4-8 2950 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Canyon 120 Comment
  CAS-BOT-BC108141  Salix gooddingii H. D. Geis 1902-1-1 533 Orange Santa Ana Comment
  RSA603346  Salix gooddingii Scott D. White, B. Leatherman 1997-6-12 5324 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
  RSA658950  Salix gooddingii Caralisa Breidenbaugh, Mark Breidenbaugh 1992-5-15 21 Orange 1/2 mile south of Chino Hills State Park. 168 Comment
  SBBG58903  Salix gooddingii C. B. Wolf 1932-4-8 2950 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Cyn 120 Comment
  UCR239842  Salix gooddingii 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
  RSA0010963  Salix gooddingii Keith E. Hoffmaster 1934-07 107 Orange n. Costa Mesa. CP3. Comment
  CAS-BOT-BC108203  Salix hindsiana Carl B. Wolf 1932-7-7 3845 Orange Rancho Santa Ana, along ditch on Bixby Ave., 1 km. west of Hansen Road, near town of Los Alamitos 7 Comment
  LA208699  Salix laevigata Carl Hedin; Joseph Ewan 1932-7-9 7685 Orange Santa Ana River 8 km below Prado (Rincon) [Area 7] Comment
  LA208700  Salix laevigata Carl Hedin; Joseph Ewan 1933-3-19 7686 Orange Santa Ana River 8 km below Prado (Rincon) [Area 7] Comment
  POM201831  Salix laevigata L. M. Booth 1932-12-16 1380 Orange West of Wolf's Ranch, 1/2 mile from ocean, Santa Ana River. Comment
  RSA679094  Salix laevigata Fred M. Roberts 2003-7-24 5965 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
  UCSB57547  Salix laevigata Roberts, Fred 1984-4-18 Orange Wagon Wheel Regional Park: 3.0km NNE Median Survey Mark; 2.1km NW Bench Mark 422 190 Comment
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Oct 28 2018
  RSA700177  Salix lasiolepis R. H. McArthur 1934-2-8 s.n. Orange Santiago Creek at Bristol Comment
  CAS-BOT-BC128464  Salix lasiolepis var. lasiolepis Ira L. Wiggins 1966-3-22 20549 Orange Along stream bank, bottom of Silverado Canyon, about 5 mi above Ranger Station, Cleveland National Forest Comment
  RSA725966  Salix lucida subsp. lasiandra R. E. Riefner 2006-10-4 06 -475 Orange Peninsular Range; Santa Ana Mtns. Foothills: Lake Forest, Aliso Creek near Portola Parkway at El Toro Rd. 225 Comment
  CAS-BOT-BC403759  Salpichroa origanifolia E. L. Paddock 1943-5-19 12747 Orange 1 mile east of Brea Comment
  RSA39339  Salpichroa origanifolia E. L. Paddock 1943-5-28 12744 Orange Little Tia Juana Campsite, Sunny Hills Ranch, Fullerton. Comment
  CDA3167  Salsola australis R. E. Riefner Jr. 2007-3-18 07 -152 Orange City of Newport Beach. North shore of Newport Bay, Dover Beach, general vicinity of Morning Star Lane and Polaris Drive. Comment
  UCR237918  Salsola australis Mark A. Elvin 2003-2-2 2255 Orange South Coast, San Joaquin Marsh, UCI campus SSE of intersection of Jamboree Blvd. and Campus Dr. 2 Comment
  RSA728671  Salsola tragus R. E. Riefner 2006-11-14 6 -672 Orange City of Irvine, San Diego Creek; vicinity of Campus Ave. at University Dr. 5 Comment
  UCLA55657  Salvia C. Epling and H. Lewis 1940-4-21 Orange 6 mi e San Juan Capistrano Comment
  POM201685  Salvia apiana L. M. Booth 820 Orange Santa Ana Canyon Comment
  RSA50451  Salvia apiana G. R. Campbell 1949-6-28 14009 Orange native to Botanic Garden, collected in picnic area. 198 Comment
  UCR193060  Salvia apiana A. C. Sanders, Fred M. Roberts 2008-6-17 35502 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, Windy Ridge Rd., saddle on ridge at head, above the Eastern Transportation Corridor 400 Comment
  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
  IRVC26432  Salvia californica Mark A. Elvin 2004-2-22 3152 Orange UCI Arboretum Southern Coastal 15 Comment
  UCR188932  Salvia clevelandii Robert DeRuff 2005-5-25 556 Orange Newport Beach, Upper Newport Bay, draw on bluff south of the Interpretive Center near end of Del Mare Avenue 20 Comment
  RSA659990  Salvia columbariae Steve Teh 1994-4-28 11 Orange Modjeska Grade rd. 3/4 mile back on fire rd. Comment
  RSA649076  Salvia columbariae var. columbariae Karl Price 1988-4-29 25 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
  UCSB50643  Salvia leucophylla Roberts, Fred; Allen, R. 1982-7-4 Orange Chino Hills; Carbon Canyon, Carbon Canyon Rd; 0.6km by road SW county line; 2.3km NNW Gilman Peak 250 Comment
  CAS-BOT-BC229980  Salvia mellifera R. J. Barr 1967-5-11 67 -178 Orange Roadside east of El Toro, Santa Ana Mountains 182 Comment
  HSC14369  Salvia mellifera J. J. Wagoner 1965-4-11 17 Orange 4 mi. N of Modjeska Canyon off Irvine Rd. near Irvine Lake Comment
  OBI30186  Salvia mellifera Diane Terrell 1969-4-30 110 Orange At Tucker Wildlife Sanctuary in Modjeska Cyn 427 Comment
  RSA733967  Salvia mellifera Keith E. Hoffmaster 1927-4-8 424 Orange Santa Ana Mountains. Comment
  RSA749294  Salvia mellifera Fred M. Roberts, Linda Farley 2008-3-28 6818 Orange Santa Ana Mtns.: Upper Weir Cyn., east fork along ridge just west of SR241, 3.4 km E Robber s Peak, Irvine Land Conservancy. 437 Comment
  RSA751396  Salvinia minima Rick E. Riefner Jr. 2008-7-9 8 -219 Orange City of Laguna Beach, bluff area W of West St. and Pacific Coast Highway. 4 Comment
  RSA477580  Sambucus mexicana Claire Kibbe 1936-07 s.n. Orange Santa Ana Canyon. 1372 Comment
  UCR177691  Sambucus mexicana Fred M. Roberts 2003-5-1 5684 Orange Coastal Plains & Basins; South Coastal Plain region, Rancho Mission Viejo: Donna O'Neill Land Conservancy, Cristianitos Cyn., 0.60 km SSW Gato Gate and 0.16 km west of Cristianitos Rd. 93 Comment
  UCR209664  Sambucus nigra Fred M. Roberts 2008-5-8 6944 Orange South Coast, Dana Point Headlands, Center for Natural Lands Mgmt. Preserve near Strands Road Gate, 0.8 km west-northwest of the Marine Institute, Dana Point Harbor 65 Comment
  RSA640718  Sambucus nigra subsp. caerulea L. C. Wheeler 1931-8-16 s.n. Orange Santa Ana River 152 Comment
  UCR248043  Samolus parviflorus Kai T. Palenscar 2013-6-15 s.n. Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Peters Canyon Regional Park, 1 km. south of the dam and 10 m south of the Peters Canyon Creek Nature Trail bridge where it crosses the creek 120 Comment
  RSA588796  Sanicula arguta Fred M. Roberts, Dave Bontrager 1990-4-18 4564 Orange Rancho Mission Viejo: ridge between Christianitos and Gabino Canyons (Riverside Cement Lease Holding), 5.5 km SE Playa Survey Marker. 152 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
  UCR191777  Sanicula bipinnatifida A. C. Sanders, Fred M. Roberts 2008-3-25 34569 Orange Peninsular Range; Santa Ana Mtns., saddle on ridge near head of Weir Canyon, 5.3 miles ENE of Villa Park, 3.1 mi. N of (Santiago Reservoir) Irvine Lake 405 Comment
  UCR193346  Sanicula bipinnatifida A. C. Sanders 2008-5-28 35435 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Bee Flat at mouth of Limestone Canyon 264 Comment
  UCR209376  Sanicula bipinnatifida Fred M. Roberts, Linda Farley 2008-3-28 6819 Orange Santa Ana Mountains, Upper Weir Canyon, Irvine Ranch Conservancy, east fork along ridge just west of SR 241, 3.4 km east of Robber's Peak 437 Comment
  RSA794245  Sanicula crassicaulis Doris Hoover Bowers 1971-4-19 1688 Orange Black Star Canyon Indian Site 762 Comment
  UCR27229  Sanicula crassicaulis E. W. Lathrop 1966-5-1 6262 Orange Santa Ana Mtns., 5 mi east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest 400 Comment
  RSA725514  Schinus molle Fred M. Roberts, Robert L. Allen 2007-9-28 6616 Orange Lomas de Santiago: above lower Santiago Cyn. wash along Santiago Cyn. Rd. just south of Irvine Mesa, 3.3 km N Bolero Lookout. 332 Comment
  SD253898  Schinus molle Jim Riley 2013-12-10 137 Orange San Clemente area; 0.29 miles E intersection Avenida Pico and Camino La Pedriza; just N San Diego County line 74 Comment
  RSA658195  Schinus molle T. A. Daubert 1991-5-26 674 Orange Tucker Wildlife Sanctuary, Modjeska Canyon nature trail. Comment
  SD133207  Schinus terebinthifolius A. C. Sanders 1990-10-6 10201 Orange Newport Bay, North Star County Beach area on the SW end of the bay, ca. 2 km inland of Hwy 1 Comment
  UCR43573  Schinus terebinthifolius B. A. Prigge 1983-12-17 5520 Orange Santa Ana Marsh and adjacent lowlands. SE-most part of oil field just north of Pacific Coast Hwy between remnant Santa Ana River channel and dirt road 2 Comment
  CAS-BOT-BC243418  Schismus barbatus Ira L. Wiggins 1966-2-19 20458 Orange Hillside on W side of road, Carbon Canyon about 220 m. SW of Orange County Survey bench mark RCE 7872 Comment
  IRVC1823  Schismus barbatus I. L. Wiggins 1966-2-18 20 448 Orange Rancho Santa Ana: roadside 1/2 mile W of entrance to Rancho Santa Ana near the end of Orange County road at the end of Orangethorpe Avenue. Santa Ana Mountains Comment
  IRVC21787  Schismus barbatus Fred M. Roberts 1985-2-25 1458 Orange Irvine: Irvine Ranch, east of MacArthur Blvd., 1.4km W UCI campus; 1.5km SE Bay View School. Southern Coastal 30 Comment
  RSA0059074  Schoenoplectus americanus CNPS Accuracy Assessment Team 2014-7-9 9308 Orange Upper Newport Bay Nature Reserve. Comment
  RSA92  Schoenoplectus americanus J. T. Howell 1927-7-19 444 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  CAS-BOT-BC111263  Schoenoplectus californicus Ivan Murray Johnston 1918-9-3 2147 Orange Laguna Canon 106 Comment
  RSA0058188  Schoenoplectus californicus Fred M. Roberts 2014-4-21 7872 Orange South Coast: San Joaquin Hills: Upper Laguna Lake 1 (upper Laguna Lake), south basin. 113 Comment
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Dec 15 2020
  RSA357009  Schoenoplectus californicus Robert F. Thorne 1975-4-6 4573 Orange San Joaquin Marsh: Near Irvine and coast. Comment
  RSA733689  Scrophularia californica L. C. Hull 1934-4-15 s.n. Orange Laguna Hills Comment
  UCD124853  Scrophularia californica R. S. Woglum 1932-4-16 s.n. Orange Trabuco Canyon. Comment
  RSA0045321  Scrophularia californica Minor Warne 1934-03 s.n. Orange Gypsum Canyon. Comment
  RSA749356  Scrophularia californica subsp. floribunda Fred M. Roberts 2008-4-22 6919 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
  RSA788820  Scrophularia californica subsp. floribunda Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49805 Orange Santa Ana Mountains: Trabuco Canyon. Comment
  RSA16  Selaginella bigelovii John Thomas Howell 1927-7-28 506 Orange Nolina Canyon, Rancho Santa Ana 152 Comment
  RSA637492  Selaginella bigelovii Valerie Sosa, LeRoy Gross 1999-6-8 505 Orange Santa Ana Mountains: Santiago and Modjeska Canyons, above Tucker Wildlife Sanctuary, above the town of Modjeska 518 Comment
  RSA703882  Selaginella bigelovii Fred M. Roberts, D. E. Bramlet 2004-7-30 6079 Orange Rancho Mission Viejo: Donna O Neill Land Conservancy, Western slopes of Cristianitos Cyn., 0.25km W Sycamore Gate and Cristianitos Road. 151 Comment
  UCSB52921  Senecio aphanactis Roberts, Fred 1983-3-10 Orange Dana Point Headlands: north of Scenic Dr., 0.5 km W Dana Point Harbor; 0.7km SSW Richard Henry Dana School 79 Comment
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Dec 12 2018
  RSA650644  Senecio californicus D. E. Bramlet 2000-4-7 2948 Orange Upper Blind Canyon. The site is found beside the SCE maintenance road and 762m west of the mainstem of Blind Canyon. This locality is 1.7km east of Weir Canyon. 354 Comment
  UC566656  Senecio californicus H. L. Mason 1926-4-25 2908 Orange five mi s Laguna Comment
  UC718547  Senecio californicus P. C. Everett 1935-3-15 6294 Orange near corner post 3938 (Rancho Santa Ana, Santa Ana Canyon); Rancho Santa Ana, Santa Ana Canyon 182 Comment
  CAS-BOT-BC333070  Senecio flaccidus var. douglasii John Thomas Howell 1927-7-16 2779 Orange North side of Santa Ana Canyon 152 Comment
  POM201687  Senecio flaccidus var. douglasii L. M. Booth 818 Orange Santa Ana Canyon bottom Comment
  RSA5429  Senecio flaccidus var. douglasii B. D. Stark 1933-1-3 s.n. Orange Rancho Santa Ana near pear orchard. 122 Comment
  CAS-BOT-BC364600  Senecio vulgaris Ira L. Wiggins 1966-2-25 20478 Orange Firestone Boy Scout Reservation E of Brea Comment
  IRVC24749  Senecio vulgaris Fred M. Roberts 1986-4-29 2817 Orange Turtle Rock, above corner of Ridgerout Dr. and Turtle Rock Dr., 1.1km SE French Hill, Irvine 141 Comment
  RSA697120  Senecio vulgaris Kenneth Beard 1934-02 s.n. Orange Along riverbank of Santa Ana River. Comment
  UCSB48100  Senecio vulgaris Roberts, Fred 1981-4-11 Orange Highway 74, 5.2km E San Juan Capistrano, near San Juan Creek crossing 52 Comment
  CAS-BOT-BC438199  Sesuvium verrucosum A. C. Sanders; D. Maleug; K. D. Jones 2000-4-19 23334 Orange Pacific Coast: Bolsa Chica Lagoon, along dirt roads in oil field, east of Hwy 1, east of Bolsa Chica St. 11 Comment
  IRVC25222  Sesuvium verrucosum Fred M. Roberts 1986-11-4 3213 Orange Anaheim Bay, north of Hog Island, Seal Beach Naval Weapons Station 0 Comment
  RSA443821  Sesuvium verrucosum Gordon Marsh 1975-7-28 s.n. Orange Huntington Beach: East Garden Grove-Wintersburg Flood Control Channel, just N of Warner St. bridge crossing, (No. C05) Comment
  CDA2442  Setaria megaphylla R. E. Riefner Jr. 2006-11-19 06 -683 Orange City of San Juan Capistrano, San Juan Creek at La Novia Avenue. Comment
  SEINET2116164  Setaria megaphylla R. E. Riefner Jr. 2006-11-12 06 -667 Orange San Joaquin gun Club, Tustin Quad: City of Newport Beach, urban creek draining into San Diego Creek at confluence with Newport Bay, San Diego Creek at SR-73 overpass 10 Comment
  IRVC24151  Setaria verticillata Fred M. Roberts 1985-9-16 2243 Orange Peter's Creek Channel, 1.0km NNE Main St. bridge across from Alton Pkwy, Irvine 9 Comment
  UCR152761  Sibara virginica D. E. Bramlet 2004-3-26 3542 Orange South Coast, Fairview Park in Costa Mesa, 183 m west of Canyon School and 366 m NW of intersection of Wilson & Canyon Dr. 24 Comment
  RSA789226  Sidalcea malviflora Naomi S. Fraga 2009-5-11 2715 Orange San Juan loop trail, Cleveland National Forest just west of Sugarloaf Spur Trail. 912 Comment
  UCR16330  Sidalcea malviflora M. Wexler 1973-5-13 s.n. Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, Los Pinos Forestry Camp Road, 0.7 mi. west of State Hwy 74 and 5.29 mi. from Orange County line 610 Comment
  RSA432756  Sidalcea malviflora Christopher Davidson 1977-5-18 5635 Orange Cleveland National Forest, Falcon campground. 1006 Comment
  UCSB47611  Sidalcea malviflora Roberts, Fred 1980-5-3 Orange 0.1km NE Falcon Group Camp, Santa Ana Mtns. 1012 Comment
  CAS-BOT-BC205743  Sidalcea neomexicana subsp. thurberi LeRoy Abrams 1903-4-17 3257 Orange Between Tustin and Myford Comment
  RSA603348  Silene gallica Scott D. White 1997-6-12 5326 Orange East of San Juan Capistrano: San Juan Creek between Highway 74 bridge and Mission Vieja site, i.e. ca. 2-4 miles E of I-15/Highway 74 junction. 46 Comment
  RSA286  Silene gallica J. T. Howell 1928-2-25 834 Orange Near Bee Canyon, Rancho Santa Ana. 152 Comment
  RSA477884  Silene gallica Albert J. Perkins 1921-5-24 s.n. Orange Roadside. Comment
  UCR193496  Silene laciniata A. C. Sanders, T. B. Salvato 2008-5-13 35361 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
  RSA438888  Silene laciniata subsp. major M. B. Dunkle 1933-5-30 3375 Orange Santa Ana Canyon. Comment
  RSA507174  Silene laciniata subsp. major Jeri Hirshberg 1988-6-7 s.n. Orange Santa Ana Mountains, head of Gypsum Canyon 412 Comment
  RSA699745  Silene laciniata subsp. major Fred M. Roberts, David E. Bramlet 2003-5-15 5874 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
  CAS-BOT-BC175065  Silene verecunda L. R. Abrams 1901-6-15 1846 Orange Santiago Peak Comment
  UCR140789  Silybum marianum Robin G. Marushia 2004-5-4 011 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
  RSA653180  Sisymbrium irio David Barrios 1991-5-8 37 Orange 1500 ft. Northwest of Fairmont Ave and Quail cir. 365 Comment
  RSA696105  Sisymbrium irio Keith E. Hoffmaster 1928-2-19 387 Orange Tustin, Santa Ana. Comment
  IRVC1190  Sisymbrium orientale D. Frees 1965-3-27 Orange Newport Beach; East Bluffs. Southern Coastal Comment
  UCD115604  Sisymbrium orientale Rimo Bacigalupi 1962-3-16 8229 Orange along U.S. 101, 2 miles north of Doheny Beach State Park. Comment
  RSA681017  Sisyrinchium bellum Fred M. Roberts, David E. Bramlet 2003-3-13 5571 Orange Donna ONeill Land Conservancy: Ridge west of Christianitos Canyon, 1.6 km NW Sycamore Gate. 197 Comment
  RSA703845  Sisyrinchium bellum D. E. Bramlet 2003-3-20 3348 Orange Donna ONeill Reserve. NE corner of the reserve, 152m west of Cristianitos Rd. and 1.9km north of the E-W access road. 134 Comment
  SEINET4171050  Sisyrinchium bellum J. R. Glen 1957-5-3 Orange 1/2 mile from the San Bernardino county line, about 3 miles east of Olinda on the Carbon Canyon road Comment
  POM21634  Solanum americanum F. W. Peirson 1924-2-9 4523 Orange Between Wintersberg and the sea. Comment
  RSA234565  Solanum americanum James Henrickson 1970-7-25 5046 Orange 2.5 miles NE of Huntington beach, 1 mile SE of Warner Ave. on sandy slope of E. Pacific Coast Hwy. at border of Bolsa Chica Salt Marsh. 0 Comment
  RSA603306  Solanum americanum Scott D. White, B. Leatherman 1997-6-12 5309 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
  POM201715  Solanum douglasii L. M. Booth 1932-5-19 1075 Orange Newport Bay. Comment
  RSA263702  Solanum douglasii E. W. Lathrop 1974-6-27 7414 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  RSA752811  Solanum douglasii A. C. Sanders, Fred M. Roberts 2008-8-7 36003 Orange Weir Canyon at powerline crossing, 1.0 mi. (air) SSE of Walnut Canyon Reservoir 226 Comment
  UC933970  Solanum douglasii Elton F. Paddock 1951-7-22 411 Orange near San Diego County line (San Clemente State Beach, near picnic tables, near railroad tracks); San Clemente State Beach Comment
  UCR100461  Solanum douglasii B. G. Pitzer 1996-4-30 2762 Orange South Coast, Upper Newport Bay, Calif. Dept. Fish & Game Ecological Reserve, off (W of) Jamboree Road 6 Comment
  UCR237843  Solanum douglasii Mark A. Elvin 2003-2-2 2272 Orange South Coast, San Joaquin Marsh, UCI campus SSE of intersection of Jamboree Blvd. and Campus Dr. 2 Comment
  UCR97817  Solanum douglasii Scott D. White 1997-3-28 4828 Orange Santa Ana Mountains, Above Modjeska Canyon, proposed water tank site. 488 Comment
  RSA0045320  Solanum douglasii G. Jentges 1932-4-30 68 Orange Wash near railroad track. Comment
  RSA329667  Solanum douglasii Gary D. Wallace 1966-4-16 473 Orange Along Hwy 101 about 10 miles north of Camp Pendleton. Comment
  RSA74872  Solanum elaeagnifolium Elroy Robinson 1935-6-26 s.n. Orange Along Santa Fe Railway, El Toro, south of Los Angeles. Comment
  NY820829  Solanum rostratum E. Johnson 1946-8-22 11531 Orange Rancho Santa Ana, Santa Ana River Canyon 122 Comment
  RSA627525  Solanum umbelliferum Sandy Leatherman, Fred M. Roberts, B. Leatherman, Trish Smith 1998-5-22 25 Orange Black Star Canyon: Spur Rd. off of Black Star Canyon Rd. Area burned during spring 1998. 335 Comment
  SEINET12274872  Solanum xanti J. F. Bright, Wyman, C. 1933-1 8094 Orange in Santa Ana foothills Comment
  RSA791806  Soleirolia soleirolii R. E. Riefner Jr. 2011-7-1 11 -84 Orange City of Newport Beach, beach area west of the end of Cameo Shores Road; south ca. 1.5 miles from Poppy Ave. 2 Comment
  RSA7474  Solidago californica C. B. Wolf 1933-8-24 5398 Orange Summit of Santiago Peak, Santa Ana Mountains 1732 Comment
  RSA699287  Solidago occidentalis J. R. Bruff 1930-10-19 s.n. Orange Santa Ana River bed. Comment
  LA203964  Solidago velutina subsp. californica W. Pequegnat; 1937-9-3 sn Orange Santa Ana Mountains, Santiago Peak Comment
  IRVC923  Sonchus oleraceus B. Mawdsley 1965-3-30 Orange east bluff at Mar Vista. Newport Beach Comment
  POM202167  Sonchus oleraceus L. M. Booth 1932-6-15 1193 Orange Marsh border East of Huntington Beach. 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
  CAS-BOT-BC235343  Sorghum halepense Le Roy Abrams 1901-6-12 1765 Orange Santa Ana Comment
  IRVC18904  Sorghum halepense Fred M. Roberts 1981-6-24 284 Orange San Juan Capistrano: 3.2km south of Saddleback College on Rancho Viejo Rd. southern coastal 42 Comment
  SD383  Sorghum halepense none given VII, 1915 71 Orange Vic. Santa Anna Comment
  CAS-BOT-BC235382  Spartina foliosa S. B. Parish; W. F. Parish 1882-10-1 1602 Orange Newport Bay Comment
  CLARK-A1528-5031  Spartina foliosa John C. Roos 1937-9-1 427 Orange Seal Beach Comment
  IRVC29761  Spartina foliosa Barry S. Nerhus, Mark A. Elvin 2006-11-4 14 Orange Huntington Beach, Bolsa Chica Wetlands, SW portion of Reserve beside Pacific Coast Highway. Southern Coastal 0 Comment
  SEINET10630772  Spartium junceum Greg Gust, Leith Nye 2005-3-12 Gust 565 Orange Cleveland National Forest, on Hwy 74 ca. 0.5 m W of county boundary with Riverside at a pullout. 401 Comment
  IRVC365  Spergula arvensis D. Van Gorden 1965-3-11 Orange 2212 Meyer Place. Costa Mesa Comment
  UCR5168  Spergula arvensis Barbara T. Gittins, O. F. Clarke 1966-3-19 889 Orange Pacific slope, Irvine Ranch, east of University of California Irvine campus, Newport Beach 91 Comment
  RSA801710  Spergula arvensis D. M. McF 1953-4-3 s.n. Orange Irvine Coast G.C. Corona Del Mar. Comment
  RSA0097842  Spergularia macrotheca L. R. Abrams 1903-4-17 3258 Orange Between Tustin and Myford. Comment
  RSA0098539  Spergularia marina Joseph A. Ewan 1931-7-31 4760 Orange Smeltzer. Comment
  POM6346  Spergularia salina P. A. Munz, L. T. Street, G. Williams 1919-5-4 2682 Orange Laguna Comment
  RSA0097293  Spergularia salina Keith E. Hoffmaster 1935-2-17 842 Orange Prob[ably] near Costa Mesa, at bluff by Santa Ana River. Comment
  CAS-BOT-BC236655  Sporobolus airoides L. R. Abrams 1901-6-1 1755 Orange Wilmington Comment
  POM1127  Sporobolus airoides I. M. Johnston s.n. Orange Laguna Beach. Comment
  RSA627751  Stachys ajugoides Scott D. White 1998-3-18 6214 Orange UCI Campus: Site of proposed Research Park, Southwest of main campus circle, ca. halfway between Berkley Ave. and new Freeway (Bonita Cyn.). Plains dissected by a series of gullies. 37 Comment
  UC1618064  Stachys ajugoides Donald G. Nelson 1935-3-23 176 Orange hills n. Fullerton Comment
  SEINET9355912  Stachys stebbinsii Unknown 2011-9-27 39902 Orange Orange Co., CA Comment
  CAS-BOT-BC393826  Stellaria media C. B. Wolf 1931-3-6 1854 Orange Trabuco Camp Ground, Trabuco Canyon, west slope of the Santa Ana Mts. 609 Comment
  RSA0119681  Stellaria media Fred M. Roberts 2015-3-10 7924 Orange San Joaquin Hills: Niguel Hill, on ridge above Aliso Canyon ear end of Ceanothus Drive (Hangover House property), 0.4 km WNW summit Aliso Peak. 122 Comment
  RSA627784  Stellaria media Scott D. White 1998-4-9 6266 Orange University of Calif. Irvine Campus; Drainage channel west of Medical Center, west of main campus circle. 15 Comment
  UCD86397  Stenotaphrum secundatum Fred M. Reed 1933-9-27 8101 Orange El Toro - Arch Beach. Comment
  RSA603298  Stenotaphrum secundatum R. E. Riefner 1997-7-12 97 -233 Orange San Clemente State Beach Comment
  UCR17943  Stephanomeria cichoriacea L. Stuart 1974-1 s.n. Orange Peninsular Range; Santa Ana Mtns., Sitton Peak Road, c. 3 mi off Ortega Hwy 579 Comment
  RSA184185  Stephanomeria diegensis I. L. Wiggins 1965-11-6 20340 Orange Near well #14, Kramer Oil Estates, near end of county road to Rancho Santa Ana. Comment
  RSA232227  Stephanomeria exigua subsp. coronaria James Henrickson 1970-7-25 5044 Orange 2.5 miles NE of Huntington beach, 1 mile SE of Warner Ave. on sandy slope of E. Pacific Coast Hwy. at border of Bolsa Chica Salt Marsh. 0 Comment
  SD245219  Stipa coronata R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49617 Orange Santa Ana Mountains: about 1 mile above San Juana Fire Station. Dry, rocky bluffs above San Juan Creek. Comment
  UCR192090  Stipa lepida A. C. Sanders, Fred M. Roberts 2008-5-6 35264 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, slope SE of road junction along ridge road, near head of Agua Chinon Canyon, 2.4 miles north of El Toro 470 Comment
  RSA0045359  Stipa lepida Keith E. Hoffmaster 1935-4-14 126 Orange Live Oak can., Santa Ana Mts. Comment
  HSC13368  Stipa pulchra C. L. Hitchcock, C. V. Muhlick 1964-3-17 23070 Orange 8 mi. E of Yorba Linda, Santa Ana Canyon. Comment
  UCR192484  Stipa pulchra A. C. Sanders, Fred M. Roberts 2008-3-25 34512 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  SEINET10603936  Stipa pulchra LeRoy R. Abrams 1903-4-18 Abrams 3269 Orange Trabuco canon, Capistrano. Comment
  RSA0011014  Stylocline gnaphaloides Fred M. Roberts 2012-5-10 7570 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
  UCSB48120  Stylocline gnaphaloides Fritzke, S.; Roberts, Jr., 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
  CAS-BOT-BC422882  Stylomecon heterophylla P. A. Munz 1918-5-4 2171 Orange Laguna Beach Region. Laguna Canon [Canyon] Comment
  UC1123320  Styrax officinalis var. redivivus J. B. Spring 1931-4-14 34 Orange Hot Springs, San Juan Canyon; Elsinore Quad., Hot Springs, San Juan Canyon 213 Comment
  UCR87110  Styrax officinalis var. redivivus Steve Boyd, Orlando Mistretta 1991-5-9 6205 Orange Santa Ana Mtns, Crest of range, south of Oak Flat at Beek's Place on Main Divide Truck Trail at jct with Black Star Canyon Road 854 Comment
  CAS-BOT-BC48096  Styrax redivivus C. B. Wolf; B. D. Stark 1932-12-19 10014 Orange Main divide of Santa Ana Mts., between Sierra Peak & Skyline Drive. 914 Comment
  RSA221085  Styrax redivivus E. W. Lathrop 1966-4-18 6185 Orange 4 mi NE of Lake Irvine, Black Star Canyon, Cleveland National Forest, Trabuco District. Comment
  RSA438601  Suaeda calceoliformis F. R. Fosberg 1930-7-10 53195 Orange Anaheim Landing. [Los Angeles Co. on label] 1 Comment
  SEINET156034  Suaeda californica var. pubescens Norman C. Cooper 1944-11-9 883 Orange Balboa. Comment
  RSA232236  Suaeda esteroa James Henrickson 1970-7-25 5029 Orange 3.5 miles NW of Huntington Beach on sandy margin of Bolsa Bay, 1/4 mile SE of Warner Ave. along PCH 0 Comment
  UCSB36528  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
  IRVC15182  Suaeda taxifolia H. Smith 1977-4-21 Orange Upper Newport Back Bay, east side, enter from Mesa Dr. and follow drainage ditch. Newport Beach Comment
  POM122880  Suaeda taxifolia Marcus E. Jones 1924-8-26 s.n. Orange Newport. Comment
  POM202053  Suaeda taxifolia L. M. Booth 1932-6-29 1232 Orange Newport Bay. Comment
  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
  RSA438591  Suaeda taxifolia E. A. Purer 1932-03 15767 Orange Coast Highway at Huntington Beach Comment
  SEINET187090  Suaeda taxifolia Allan C. Keller 1937-11-26 Orange Santa Ana River Bridge west of Newport Beach on U.S. Highway Alternate 101. Comment
  UC213451  Suaeda taxifolia D. L. Crawford Orange Laguna Beach Region Comment
  UCD169515  Suaeda taxifolia 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
  UCR66368  Suaeda taxifolia A. C. Sanders 1990-10-6 10180 Orange South Coast, Newport Back Bay, Westcliff Park area on the southwest end of the bay, c. 1 mile inland from Hwy 1 (Pacific Coast Hwy). 6 Comment
  UCR256936  Swertia parryi Naomi Fraga 2009-5-11 2719 Orange Santa Ana Mountains, Cleveland National Forest, San Juan Loop Trail just west of Sugarloaf Spur Trail 912 Comment
  LA204603  Symphoricarpos mollis W. E. Pequegnat; 1937-8-19 37 Orange Santa Ana Mountains, Trabuco Peak Comment
  POM290485  Symphoricarpos mollis Lyman Benson 1947-4-27 12342 Orange Carbon Canyon. Chino-Puente Hills; Pacific Slope Drainage Area. 244 Comment
  RSA303567  Symphoricarpos mollis J. R. Shevock 1971-5-15 1011 Orange Santa Ana Mountains. At Irvine Lake, Santa Ana Mountains. Comment
  RSA697319  Symphoricarpos mollis Keith E. Hoffmaster 1931-3-22 s.n. Orange Santa Ana Mountains. Comment
  UCR193767  Symphoricarpos mollis A. C. Sanders, Fred M. Roberts 2008-7-3 35671 Orange Peninsular Range; Santa Ana Mtn