Search Results — 2000 specimen records retrieved (1648 records with coordinates)
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(For large data reqests, please contact Jason Alexander, jason_alexander@berkeley.edu.)

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

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  JEPS61199  Abronia maritima Alice King May 1908 Orange Newport 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
  SEINET893685  Abronia maritima Norman C. Cooper 1942-1 888 Orange Balboa. Comment
  CAS-BOT-BC229408  Abronia umbellata Peter H. Raven 1957-9-28 11374 Orange North limits of Surfside Comment
  RSA461004  Abronia umbellata William Greenberg 1939-7-20 20519 Orange Newport Beach Comment
  RSA640716  Abronia umbellata Louis C. Wheeler 1931-8-17 s.n. Orange Balboa. Comment
  POM212062  Abronia villosa var. aurita Carl B. Wolf 1931-7-1 2259 Orange Atwood, lower end of Santa Ana Canyon. 76 Comment
  UCR182816  Abutilon palmeri R. E. Riefner Jr. 2006-9-5 06- 418 Orange Southern Coast, Corona del Mar, Ocean Blvd. near Iris Ave. 11 Comment
  SD175820  Acacia cyclops D. G. Kelch 2006-12-9 06 554 Orange Irvine. University Dr. along tidal Creek just E of I-73. 9 Comment
  SEINET946800  Acacia longifolia R. J. Barr 1964-1 64 -589 Orange Roadside near Capistrano Beach Comment
  RSA450873  Acacia saligna Fred M. Roberts 1984-3-15 1260 Orange Newport Beach; Upper Newport Back Bay, along Back Bay Drive, 3.0 km. W UC Irvine campus center; 1.0 km. SSW Bayview School. 2 Comment
  UC218134  Acer macrophyllum P. A. Munz, R. D. Harwood 1920-4-25 6730 Orange Silverado Canyon Santa Ana Mts., Silverado Canyon (along stream) 548 Comment
  UCR234158  Acer macrophyllum Dick Newell, Judy Booth 2012-3-25 234 Orange Peninsular Range; Santa Ana Mtns., Maple Springs Road, 1.5 miles above Maple Springs entrance 615 Comment
  UCSB47632  Acer macrophyllum Roberts, Fred 1980-5-3 Orange 2.2km SE Trabuco Peak, Santa Ana Mtns 1234 Comment
  RSA773562  Achnatherum coronatum Fred M. Roberts 1999-5-14 5218 Orange Peninsular Ranges; Santa Ana Mts.: Lomas de Santiago, Loma Ridge; Upper Limestone Canyon on slopes above Bolero Spring, 2.4 km NNW Bolero Lookout 451 Comment
  LA48025  Acmispon glaber var. glaber Robert G. Engman; sn Orange Dana Point Comment
  UCSB52931  Acmispon micranthus Roberts, Jr., Fred 1983-5-19 Orange Laguna Beach: Sycamore Hills, near Laguna Canyon Rds.; 1.6 km. NNE jct. El Toro and Laguna Canyon Rds.; 5.1 km. ESE Signal Peak 130 Comment
  POM201749  Acourtia microcephala L. M. Booth 1932-7-4 1243 Orange Newport Lagoon. Comment
  UCR281525  Acourtia microcephala Mitch Provance 2017-6-9 617- 101 Orange Coyote Hills, North Fullerton, East side of Gilbert St., 0.5 miles ENE of intersection with Castlewood Dr. 124 Comment
  UCR97813  Adenostoma fasciculatum Scott D. White 1997-3-28 4848 Orange Santa Ana Mountains, Above Modjeska Canyon, proposed water tank site. 488 Comment
  RSA357  Adenostoma fasciculatum var. fasciculatum J. T. Howell 1928-4-15 919 Orange East boundary of the Rancho Santa Ana 229 Comment
  RSA358  Adenostoma fasciculatum var. fasciculatum J. T. Howell 1927-7-29 515 Orange Near east boundary of Rancho Santa Ana. 152 Comment
  UCSB41858  Adenostoma fasciculatum var. fasciculatum Fisher, K. 1970-5-15 Orange Tucker Wildlife Sanctuary, Modjeska Canyon 548 Comment
  RSA3142  Adenostoma fasciculatum var. obtusifolium Carl B. Wolf 1931-7-7 2276 Orange Procotr Valley, 4 miles above the Upper Otay reservoir on the road to Jamul (east of Mt. San Miguel). 244 Comment
Read comments
Jun 8 2016
  CDA1085  Adiantum capillus-veneris D. G. Kelch 2006-12-9 6 .532 Orange Newport Bay, Back Bay Dr. betweeen marsh and steep bluff. Comment
  UCR240175  Adiantum capillus-veneris R. E. Riefner Jr. 2012-2-23 12- 43 Orange South Coast, city of Laguna Beach, Treasure Island Beach, vicinity of Wesley Drive and South Coast Hwy 1 Comment
  POM188247  Adiantum jordanii Marcus E. Jones 1931-3-23 28426 Orange Laguna Comment
  RSA703722  Adiantum jordanii D. E. Bramlet, Fred M. Roberts 2003-3-27 3355 Orange Donna O'Neill Reserve. NE corner of the reserve 274m west of Cristianitos Rd. and 1.46km north of the E-W access road. 152 Comment
  IRVC22035  Adiantum jordanii Fred M. Roberts 1983-12-13 1154 Orange Temple Hill, Park Canyon along Park Ave., 1.3km NE Thurston Sch.; 1.7km SE Bench Mark 104, Laguna Beach 194 Comment
  RSA728658  Aeonium haworthii R. E. Riefner 2006-8-26 06 -377 Orange City of Laguna Beach, bluffs along Aliso Creek, N slope of Aliso Peak, Pacific Coast Hwy., E. of Aliso Beach. Aliso Beach County Park. 12 Comment
  UCR188945  Aesculus californica Robert DeRuff 2004-1 549 Orange Newport Beach, Upper Newport Bay, Eastbluff North, below and north of intersection of Back Bay Drive and Eastbluff Drive 7 Comment
  RSA562816  Agave americana Steve Boyd, Timothy S. Ross 1992-5-20 7469 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of the wilderness in Lucas Canyon, about old mining habitations in side canyon, upstream 1/4 mile from Lucas Canyon Trail crossing and north spur trail 1/8 mile. 390 Comment
  UCR150907  Agoseris retrorsa Valerie Soza, LeRoy Gross 1999-6-10 513 Orange Santa Ana Mountains, Southwestern extension of Modjeska Peak, off dirt road to summit, off Main Divide Road 1524 Comment
  SEINET14046461  Agrostis pallens A. C. Sanders, Fred M. Roberts 2008-6-17 35490 Orange Lomas de Santiago, West Loma Ridge Spur Road c. 1 km E of Sheriff's Training Facility and 1.6 km SW of Irvine Lake, between Hwy 241 and 261 357 Comment
  SEINET3916500  Agrostis pallens A. C. Sanders, Fred M. Roberts 2008-7-16 35851 Orange Penninsular Range; Santa Ana Mtns.: Lomas de Santiago, Limestone Canyon.; 0 325 Comment
  UC729937  Agrostis stolonifera Carl B. Wolf 1932-6-13 Orange Malvern and Nicholas Avenues Fullerton 53 Comment
  RSA6042  Agrostis stolonifera C. B. Wolf 1932-7-13 3722 Orange Fullerton. 53 Comment
  UC537288  Agrostis viridis Lawrence M. Booth 1932-6-7 1163 Orange Newport Lagoon Comment
  CAS-BOT-BC64519  Ailanthus altissima E. R. Johnson 1932-5-1 3704 Orange Rancho Santa Ana, Santa Ana Canyon. Aliso Canyon. 182 Comment
  RSA798606  Allium monticola var. keckii Robert F. Thorne, E. W. Lathrop 1977-5-18 49744 Orange Santa Ana Mountains: summit of Santiago Peak 1733 Comment
  RSA562736  Allophyllum glutinosum Steve Boyd, T. S. Ross 1992-5-20 7452 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of wilderness in Lucas Canyon along a new section of trail heading up major side canyon northward to Sitton Peak Road (7S09), 305 Comment
  IRVC188  Alnus rhombifolia D. Kaplan, H. R. Williams 1966-1-8 521 Orange [Trabuco Canyon], Lower Trabuco Campground; limited to water courses of canyons. Santa Ana Mountains Comment
  RSA184109  Alnus rhombifolia I. L. Wiggins 1966-1 20411 Orange along immediate margin of stream above ranger station, Trabuco Canyon Comment
  RSA708720  Alnus rhombifolia Fred M. Roberts, Robert L. Allen, Chris Barnhill 2004-8-21 6121 Orange Caspers Wilderness Park, Hot Springs Creek in San Juan Cyn., c.a. 0.36km SSW San Juan Ranger Station, at SR 74 crossing. 197 Comment
  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
  SD153014  Aloe chabaudii Steve Boyd, T. Ross 1992-5-20 7470 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area, western edge of wilderness in Lucas Canyon, about old mining habitations in side canyon, upstream Ao mile from Lucas Canyon Trail crossing. 390 Comment
  RSA184077  Amaranthus albus I. L. Wiggins 1966-5-4 20658 Orange Along railroad embankment of A.T. & S.F. R.R., on SW side of Orangethorpe avenue, near Esperanza siding. Comment
  UCD97187  Amaranthus albus Ira L. Wiggins 1966-5-4 20658 Orange Along railroad embankment of A.T. and S.F.R.R., on southwest side of Orangethorpe Avenue, near Esperanza siding. Comment
  IRVC23146  Amaranthus deflexus Fred M. Roberts 1985-7-11 2026 Orange San Joaquin Hills: Laguna Canyon, Laguna Canyon Road near Laguna Lakes, 5.0km ENE Signal Peak. southern coastal 112 Comment
  RSA542441  Amaranthus deflexus Fred M. Roberts 1988-10-21 4161 Orange Irvine: Michelson bridge at San Diego Creek. 4 Comment
  IRVC14988  Amaranthus hybridus 1976-10-28 Orange Nieblas Elementary Sch. playground Fountain Valley Comment
  UCR207561  Amaranthus palmeri O. F. Clarke 2004-5-29 s.n. Orange Santa Ana River Canyon, Santa Ana River on the west side of Featherly Park 110 Comment
  POM201875  Amaranthus powellii L. M. Booth 1932-7-21 s.n. Orange Anaheim Creek Comment
  POM5985  Amblyopappus pusillus Philip A. Munz 1918-5-5 2186 Orange Laguna Beach. Comment
  RSA416883  Amblyopappus pusillus L. C. Wheeler 1932-6-25 859 Orange Newport Bay. 1 Comment
  RSA416884  Amblyopappus pusillus L. C. Wheeler 1932-6-22 848 Orange Newport Bay. 8 Comment
  SEINET2028644 Image available Amblyopappus pusillus Lawrence M. Booth 1932-5-12 1007 Orange Newport Bay Comment
  UCR270998  Amblyopappus pusillus Mitch Provance, Travis Kegel 2016-4-8 416- 62 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
  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
  UC2030078  Ambrosia chamissonis Valerie Soza, K. Clark, LeRoy Gross, Will Miller, Fred M. Roberts, G. D. Wallace 2001-4-4 1115 Orange Anaheim Bay: Seal Beach U. S. Naval Weapons Station, southwestern edge of Seal Beach National Wildlife Refuge. Comment
  UC523553  Ambrosia chamissonis David D. Keck 1933-9-8 2522 Orange Sunset Beach Comment
  UCSB10368  Ambrosia chamissonis McElwain, Isabelle 1953-4-25 Orange U.S. 101, 2 mi. S of Huntington Beach Comment
  POM4813  Ambrosia chamissonis Anonymous 1897-5-16 s.n. Orange Ocean Beach. Comment
  RSA696740  Ambrosia chamissonis var. chamissonis R. H. McArthur 1934-4-7 s.n. Orange Near outlet of Santa Ana River. 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
  UCR210370  Ambrosia psilostachya T. B. Salvato, Billy Deane 2006-10-16 1938 Orange South Coast, Irvine, San Diego Creek flood control channel, between Michelson Drive and the 405 FWY 12 Comment
Read comments
Jul 30 2010
  UC176003  Ambrosia psilostachya Geo. R. Hall 1914-9-30 Orange Santa Ana Comment
  RSA753029  Ammannia coccinea A. C. Sanders, Fred M. Roberts 2008-9-18 36095 Orange Lomas de Santiago, Santiago Creek Canyon c. 0.5-0.8 miles above the highway bridge 300 Comment
  UC217856  Ammannia robusta P. A. Munz 1922-9-2 6353 Orange Laguna Canyon 45 Comment
  POM201611  Ammi visnaga L. M. Booth 1932-7-18 1268 Orange Santa Ana River, 1 mile from Ocean. Comment
  SEINET12120344  Ammi visnaga L. M. Booth 1932-1 1268 Orange Sant Ana River Flats, near the sea Comment
  SBBG14802  Amorpha californica P. H. Raven 1962-5-18 17752 Orange Silverado Cyn Truck Trail 7.3 mi above Gate 1280 Comment
  RSA485153  Amorpha californica var. californica E. R. Johnson 1929-10-1 636 Orange Rancho Santa Ana. Comment
  UC1234767  Amorpha californica var. californica Peter H. Raven 1962-5-18 17752 Orange Silverado Canyon Truck Trail 7.3 mi above Gate; Santa Ana Mountains 1280 Comment
  CAS-BOT-BC177253  Amorpha fruticosa J. Ewan 1929-6-28 3617 Orange Santiago Canyon, Santa Ana Mts. 365 Comment
  CAS-BOT-BC177256  Amorpha fruticosa C. Epling; H. Lewis 1940-4-21 s.n. Orange Hills 6 miles East of San Juan, Capistrano Comment
  UC527692  Amorpha fruticosa B. D. Stark 1931-10-17 2463 Orange Santa Ana Canyon Rancho Santa Ana 137 Comment
  CLARK-A1528-460  Amorpha fruticosa var. occidentalis Dave Cerf 1971-4-17 Orange Orange Park Acres 243 Comment
  HSC3516  Amsinckia intermedia C. L. Hitchcock, C. V. Muhlick 1964-3-17 23064 Orange 8 mi. E of Yorba Linda, Santa Ana Canyon. Comment
  RSA450858  Amsinckia intermedia Gordon Marsh 1978-10-19 s.n. Orange UC Irvine Ecological Preserve. 98 Comment
  UCR192461  Amsinckia intermedia A. C. Sanders, Fred M. Roberts 2008-3-25 34529 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  SFV3057  Amsinckia intermedia D. E. Breedlove 1962-3-9 1791 Orange 6.4 miles east of San Juan Capistrano on State Highway 74. 122 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
  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
  RSA688982  Anagallis arvensis Fred M. Roberts, D. E. Bramlet 2003-4-10 5640 Orange Rancho Mission Viejo: Donna O'Neill Land conservancy, Back Road, ridge between Cristianitos Cyn, and Segunda Deshecha Canada, 1.45km WNW Gato Gate. 216 Comment
  SD181373  Anagallis arvensis Valeria Soza, K. Clark,L. Gross,W. Miller,F. Roberts,G. Wallace 2001-4-4 1123 Orange Anaheim Bay; Seal Beach U.S. Naval Weapons Station, southwestern edge of Seal Beach National Wildlife Refuge 3 Comment
  RSA650588  Anagallis arvensis D. Geisinger, R. Miller, E. Baldwin 1959-4-14 s.n. Orange Poor Mans Weather Glass, Santa Ana Canyon. Comment
  UCR113625  Andropogon glomeratus H. Camp 1999-9 s.n. Orange Peninsular Range; Santa Ana Mtns., Ronald W. Caspers Wilderness Park, 12 miles east of San Juan Capistrano along San Juan Creek bed near confluence with Hot Springs Canyon 213 Comment
  CAS-BOT-BC400331  Anemopsis californica Carl B. Wolf 1932-7-2 3818 Orange Carbon Canyon, 1/8 mi. below La Vida Springs 213 Comment
  POM201881  Anemopsis californica L. M. Booth 1932-7-19 1280 Orange Bolsas Marsh. Comment
  POM354855  Antirrhinum coulterianum M. B. Dunkle 1934-6-18 3995 Orange San Juan Canyon; Southern Coastal 305 Comment
  CHSC101739  Antirrhinum multiflorum R. E. Riefner Jr. 2008-7-21 08 -2248 Orange Irvine Ranch Reserve, North Irvine Ranch, middle Fremont Canyond, east slope along Black Star SCE Rd. UTM: 11S 0437874E 370552N. 717 Comment
Read comments
Dec 14 2012
  RSA737898  Antirrhinum multiflorum R. E. Riefner 2008-6-17 08 -159 Orange Irvine Ranch Reserve, N Irvine Ranch, Middle Fremont Canyon along Black Star SCE road. 618 Comment
  UCR192112  Antirrhinum nuttallianum A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35315 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along fire line/bulldozer cut, c. 1.5 mi. east of Walnut Cyn Reservoir 346 Comment
  UCR274178  Antirrhinum nuttallianum Dick Newell, Don Millar, Nicole Kahal 2015-6-9 409 Orange Peninsular Range; Santa Ana Mtns., foothills west of Black Star Canyon Road, at the end of the service road going to Edison's tower, 2/10 mile south of Lake View Rd. off State Spur 577 Comment
  JEPS4277  Antirrhinum nuttallianum subsp. nuttallianum Alice King May 1908 Orange Newport Beach Comment
  POM201705  Antirrhinum nuttallianum subsp. nuttallianum L. M. Booth 1932-12-6 1260 Orange Road side near Newport Beach Comment
  POM354914  Antirrhinum nuttallianum subsp. nuttallianum M. B. Dunkle 1934-6-18 3994 Orange San Juan Canyon; Southern Coastal 305 Comment
  JEPS83381  Antirrhinum nuttallianum subsp. subsessile David M. Thompson 1983-5-11 303 Orange 0.7 mi w Dana Point, Del Obispo St intersection w/ Golden Lantern St (above roofed picnic area on steep slope below high sea cliff (condominium on top), across road from parking lot this is directly on the water); Dana Point, Dana Point Quad. (7.5', 1968) 7 Comment
  UCR162200  Antirrhinum nuttallianum subsp. subsessile Robert DeRuff 1983-1 275 Orange Southern Coast, Newport Beach, Upper Newport Back Bay, Castaway's Bluffs 24 Comment
  POM96035  Aphanisma blitoides P. A. Munz 1926-4-15 10823 Orange 2 miles NW of Laguna Comment
Read comments
Dec 4 2014
  UCSB52904  Apiastrum angustifolium Roberts, Fred 1983-5-4 Orange Laguna Beach; upper Rancho Laguna Canyon, 1.7 km. SSW Top of the World School; 1.4 km. ENE Cactus Point 200 Comment
  IRVC20162  Apium graveolens R. L. Allen 1978-8-28 Orange behind Saddlback Ranch Apts., Los Alisos Blvd.; in moist soil, shady location. Mission Viejo Comment
  UCR192992  Apium graveolens A. C. Sanders, Fred M. Roberts 2008-6-17 35469 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Agustine staging area near Limestone Canyon Rd. gate at Santiago Cyn Rd. 260 Comment
  RSA226638  Apium graveolens Christopher Davidson, G. Benny 1971-6-15 1545 Orange Brea Canyon, 0.5 mile N of Central Avenue, along Brea Creek, near Brea Oil Co. wells. Comment
  RSA232218  Apium graveolens James Henrickson 1970-7-24 4993 Orange 2 miles NNW or Huntington Beach around small freshwater industrial pond at eastern margin of Bolsa Chica Salt Marsh along Huntington Beach Mesa. 0 Comment
  RSA5951  Apium graveolens C. B. Wolf 1932-7-7 3842 Orange Bryant Ranch ; On Bixby Ave. 2/10 mi. W of Hansen Road. (2/10 mi. W of SE corner of NE 1/4 of NE 1/4 of sec. 34 T4S R11W) 9 Comment
Read comments
Apr 9 2014
  RSA267966  Aralia californica E. W. Lathrop 1977-6-16 7656 Orange Silverado Canyon, Santa Ana Mts, Orange County, Cleveland National Forest Trabuco District. Along road bank at Big cone Springs on the Maple Springs road 1280 Comment
  RSA539397  Aralia californica Fred M. Roberts, Carol A. Roberts 1988-6-9 4067 Orange Santa Ana Mountains: Main Divide Truck Trail, Upper Silverado Canyon, 1.9 kilometer N Modjeska Peak. 1128 Comment
  UCR130342  Araujia sericifera A. C. Sanders, Mark A. Elvin 2003-10-12 27319 Orange Southern Coastal Slope, Irvine, UCI Arboretum, UCI campus near intersection of Jamboree Blvd. and Campus Dr. 15 Comment
  RSA629336  Arctostaphylos glandulosa Jon E. Keeley 1992-6-12 15521 Orange North of El Cariso on road to Los Pinos Pk, 3.8 km north of Hwy 74. 1000 Comment
  UCR282327  Arctostaphylos glandulosa A. C. Sanders, Yi Huang 2017-3-3 42701 Orange Peninsular Range; Santa Ana Mtns., North Main Divide Road, 3.5 km north of Hwy 74 960 Comment
  CAS-BOT-BC23108  Arctostaphylos glandulosa subsp. glandulosa L. R. Abrams 1901-6-15 s.n. Orange Mt. Dante a So summit Comment
  IRVC1253  Arctostaphylos glandulosa subsp. glandulosa A. S. Boughey 1965-3-16 63 Orange Silverado Canyon. Santa Ana Mountains Comment
  OBI30165  Arctostaphylos glandulosa subsp. glandulosa John Hanger 1971-3-29 3 Tu Orange 8 mi out Harding Canyon road from Tucker Wildlife Sanct. 1402 Comment
  RSA629325  Arctostaphylos glandulosa subsp. glandulosa Jon E. Keeley 1992-6-12 15512 Orange Rd. 6S06, 1km northeast of Blue Jay Campground, north of El Cariso (Hwy 74) 1050 Comment
  RSA629331  Arctostaphylos glandulosa subsp. glandulosa Jon E. Keeley 1992-6-12 15513 Orange Rd. 6S06, 1km northeast of Blue Jay Campground, north of El Cariso (Hwy 74) 1050 Comment
  UCSB48020  Arctostaphylos glandulosa subsp. glandulosa Roberts, Fred 1981-4-11 Orange Santa Ana Mtns.; Main Divide Truck Trail at junction with road leading to Blue Jay Campground, 1.0 km. N Blue Jay Campground 1132 Comment
  UC1120328  Arctostaphylos glandulosa subsp. zacaensis H. A. Jensen 1937-11-4 415 Orange head of Trabuco Canyon Cleveland National Forest, Elsinore Quadrangle Comment
  RSA303426  Arctostaphylos glauca var. glauca J. R. Shevock 1970-1-21 612 Orange Modjeska Cyn. 305 Comment
  SEINET10952165  Arctostaphylos otayensis Karen M. Meyer, Andrew Townesmith; Tracy Scott 2007-3-10 Meyer 6 Orange Cleveland National Forest, 2 mi. N. Main Divide Rd./NF3S04, off Hwy. 74. 957 Comment
  UC718382 Image available Arctostaphylos pringlei subsp. drupacea P. C. Everett 1935-6-19 7232 Orange Main Divide Motorway 7 mi from summit of Santiago Peak (se); Santa Ana Mts. 1280 Comment
  SEINET5585509  Arctotheca prostrata R. E. Riefner Jr. 2013-1 13 -125 Orange City of Irvine, Irvine Valley College, Irvine Center Dr. near College St. 37 Comment
  SD53699  Arctotis stoechadifolia E. Norland 1963-5-24 Orange Cypress, Bishop St. Comment
  RSA234498  Arctotis venusta James Henrickson 1970-7-25 5091 Orange 2 miles NE of Huntington Beach near north end of Bolsa Chica Salt Marsh. 0 Comment
  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
  UCSB52874  Aristida purpurea var. parishii Roberts, Fred 1983-4-16 Orange Laguna Beach, Sycamore Hills, central ridge; 1.4 km NNE jct of El Toro and Laguna Cyn Rds; 5.4 km ESE Signal Peak 117 Comment
  POM293902  Artemisia biennis Robert M. Muir 1946-10-24 s.n. Orange Midway between Corona del Mar and Santa Ana. Comment
  CHSC108498  Artemisia californica R. E. Riefner Jr. 2006-8-25 06 -410 Orange City of Dana Point, Salt Creek Beach Park, vicinity of Dana Strand Rd. and Selva Rd. UTM:11S 0433601E 3702917N. 1 Comment
  CLARK-A1528-5239  Artemisia californica John C. Roos 1937-8-31 2348 Orange San Clemente Comment
  RSA301943  Artemisia californica Jim Shevock 1970-10-19 523 Orange Newport Back Bay 6 Comment
  RSA5317  Artemisia californica B. D. Stark 1933-1-17 1766 Orange Dana Point. 15 Comment
  UCR131889  Artemisia californica J. Mallory, V. McCoy 1995-7-3 6454- 70 Orange Santa Ana Mountains: N-facing slope in Santiago Canyon, c. 0.5 mi. east of Santiago Canyon Rd; near Irvine Park 200 Comment
  RSA778  Artemisia douglasiana J. T. Howell 1927-8-13 627 Orange Santa Ana River Bottom 152 Comment
  UCR242921  Artemisia dracunculus Dick Newell, Don Millar 2013-6-25 335 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Limestone Canyon, 2.25 miles southeast of Augustine Staging Area 339 Comment
  RSA0042766  Artemisia palmeri Fred M. Roberts 2012-7-18 7669 Orange SAN JOAQUIN HILLS: Newport Beach, Buck Gully, Buck Gully Trail, west end, just east of north terminus of Poppy Street and 2.1 km WNW summit of Pelican Hill. 37 Comment
  RSA779  Artemisia tridentata J. T. Howell 1927-10-22 763 Orange Santa Ana River bottom, Rancho Santa Ana 152 Comment
  CAS-BOT-BC97299  Artemisia tridentata subsp. tridentata J. T. Howell 1927-10-22 3165 Orange in Santa Ana River bottom, Santa Ana [Canon] Canyon 152 Comment
  RSA70038  Arthrocnemum subterminale F. W. Peirson 1924-8-29 5091 Orange Corona Del Mar Comment
  RSA0031759  Arundo donax R. F. Thorne 1977-11-21 50815 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs Comment
  UCR235513  Asclepias curassavica R. E. Riefner Jr. 2011-8-19 11- 100 Orange South Coast, city of Laguna Beach, bluff area west of West Street and Pacific Coast Highway 4 Comment
  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
  UCR150567  Asparagus asparagoides Scott D. White, Matt Carlton 2003-11-20 9873 Orange South Coastal Plain, Santa Ana Mtn foothills. San Juan Creek in San Juan Capistrano 37 Comment
  IRVC12865  Asparagus plumosus B. T. Gittins 1964-4-15 390 Orange Costa Mesa, 1613 Sandalwood. Comment
  UCR149413  Asphodelus fistulosus Fred M. Roberts 2000-6-5 5337 Orange Chino Hills, Yorba Linda, along Hidden Hills Dr. near Sunbeam Lane, on ridge above Box Canyon 376 Comment
  RSA739319  Aspidotis californica Keith E. Hoffmaster 1933-3-2 30 Orange Orange County: Santa Ana Mts Comment
  SEINET3153585  Aspidotis californica W. B. Crockatt 1908-6-1 sn Orange Capistrano Valley Comment
  IRVC178  Asplenium bulbiferum Ray Nesheim 1965-5-11 HS0565 Orange Balboa Island. Southern Coastal Comment
  POM202111  Aster subulatus var. ligulatus L. M. Booth 1932-8-5 1356 Orange Bolsas Marsh. Comment
  SEINET878948 Image available Asteraceae D. D. Keck 1933-1 2537 Orange Seal Beach. Comment
  CAS-BOT-BC180452  Astragalus brauntonii Carl B. Wolf 1936-6-22 8000 Orange Santa Ana Mts., No. slopes of Sierra Pk., Claymine Canyon truck trail to Sierra Pk. 457 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
  UCR170789  Astragalus brauntonii Adrian Wolf, Paul Galvin 2003-8-11 s.n. Orange Santa Ana Mtns., North Ranch Policy Plan Area, Gypsum Canyon 284 Comment
  POM21172  Astragalus didymocarpus Helen D. Geis 1902-03 s.n Orange Santiago Creek bed. Comment
  RSA699634  Astragalus didymocarpus Keith E. Hoffmaster 1935-3-17 s.n. Orange Near El Toro (Trabuco rd.) Comment
  CAS-BOT-BC186731  Astragalus gambelianus Scott D. White; Noel Davis 1998-4-24 6338 Orange Santa Ana Mtn. foothills. Mission Viejo Area: Aliso Creek watershed, east of El Toro Rd. just N of jtn. w/ Valley Vista Wy. Large proposed subdivision called Saddleback Meadow 500 Comment
  RSA749305  Astragalus gambelianus Fred M. Roberts 1999-4-21 5178 Orange Lomas de Santiago: Loma Ridge, ridges north of Dripping Springs Cyn., 1.5 km W Silverado Sch. and 4.8 km NNW Bolero Lookout. 365 Comment
  RSA380  Astragalus trichopodus var. lonchus J. T. Howell 1928-2-7 815 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  UC284237  Astragalus trichopodus var. lonchus P. A. Munz 1923-9-7 7770 Orange mouth of Trabuco Canyon mouth of Trabuco Canyon (base of limestone cliff) 304 Comment
  UCR203891  Atriplex R. E. Riefner Jr. 2006-10-19 06- 546 Orange city of Lake Forest, c. 0.5 mi north of Alton Parkway on east side of SR-241 230 Comment
  RSA737850  Atriplex R. E. Riefner 2006-10-2 06 -466 Orange City of Lake Forest, N of Portola Pwy and immediately W of SR 241 freqay at avocado orchard, vicinity of Tomato Spring. 206 Comment
  SBBG121999  Atriplex amnicola R. E. Riefner 2005-9-16 05 -666 Orange E of Bayside Drive at confluence with Big Cyn, upper Newport Bay 6 Comment
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Dec 13 2012
  POM48694  Atriplex argentea I. M. Johnson 1924-8-29 s.n. Orange Corona Del Mar 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
  UCR14056  Atriplex californica Hyrum B. Johnson 1973-10-27 s.n. Orange Pacific Coast, Bolsa Chica State Beach 1 Comment
  UCR99812  Atriplex californica B. G. Pitzer 1996-4-30 2807 Orange San Joaquin Hills, Crystal Cove State Park, south of City of Irvine on State Hwy 1 (Pacific Coast Hwy) 15 Comment
  RSA259  Atriplex canescens J. T. Howell 1927-10-22 760 Orange Near Eastern Boundary, Rancho Santa Ana. 152 Comment
  UCD97302  Atriplex canescens A. C. Sanders 1990-10-6 10193 Orange Newport Bay, North Star County Beach area on the SW end of the bay, 2 km inland of Hwy. 1. 1 Comment
  CAS-BOT-BC170193  Atriplex canescens subsp. canescens Joseph Andorfer Ewan 1932-7-28 7707 Orange Seaward bluffs at Corona del Mar. Comment
  CAS-BOT-BC170196  Atriplex canescens subsp. canescens John Thomas Howell 1927-10-22 3162 Orange In hills on n. side of Santa Ana Canyon. 152 Comment
  RSA598021  Atriplex coulteri D. E. Bramlet 1994-2-3 2363 Orange San Joaquin Hills. At the head of Bommer canyon, approximatly 30m. NE of the rideline truck trail, near peak 1033. 296 Comment
  RSA752214  Atriplex glauca R. E. Riefner Jr. 2002-5-4 02 -87 Orange City of Dana Point, beach W of Pacific Coast Hwy. near mouth of Salt Creek. 15 Comment
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Feb 28 2016
  RSA488137  Atriplex glauca Fred M. Roberts 1985-8-30 2186 Orange Laguna Niguel: Niguel Hill, Pacific Island Rd., 1.4 km ESE Aliso Pk. 182 Comment
  RSA795710  Atriplex glauca W. R. Ferren 1991-12-2 EPA- 17 Orange San Juan Creek Highway 74 at bridge for San Juan Creek, San Juan Capistrano. Comment
  IRVC27506  Atriplex lentiformis Mark A. Elvin 2004-5-2 3423 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7km (air) NNW UC Irvine campus center. Southern Coastal 3 Comment
  SD253971  Atriplex lentiformis Jim Riley 2013-12-10 136 Orange San Clemente area; 0.29 miles E intersection Avenida Pico and Camino La Pedriza; just N San Diego County line 74 Comment
  UCSB56520  Atriplex lentiformis Johnson, J. 1978-11-8 Orange Irvine; Coyote Canyon Road and Mac Arthur Blvd. intersection Comment
  POM201918  Atriplex leucophylla L. M. Booth 1932-8-5 s.n. Orange West Newport Beach Comment
  UCR18895  Atriplex leucophylla John C. Roos 1949-10-1 4677 Orange South Coast, Doheny Beach 0 Comment
  POM219183  Atriplex pacifica L. C. Wheeler 1932-6-25 855 Orange Newport Bay. 3 Comment
  UC219363  Atriplex pacifica D. L. Crawford 1916-5-5 Orange Laguna Beach Laguna Beach (bluffs along shore, Southern California) Comment
  RSA232223  Atriplex prostrata James Henrickson 1970-10-3 s.n. Orange 3 miles NE of Huntington Beach just N of Bolsa Chica Salt Marsh. 0 Comment
  UC536972  Atriplex rosea Lawrence M. Booth 1932-8-5 1350 Orange West Newport Beach West Newport Beach (salt marsh) Comment
  SD237407  Atriplex semibaccata T. B. Salvo 2010-9-27 5105 Orange South Coast: Dana Point Headlands, Harbor Point Park, south of Scenic Dr. and Cove Rd., beyond the end of Green Lantern., overlooking Dana Point Harbor. 52 Comment
  SEINET155912  Atriplex semibaccata Norman C. Cooper 1942-11-9 889 Orange Balboa. Comment
  UCR152758  Atriplex semibaccata D. E. Bramlet, K. Peterson 2003-3-19 3346 A Orange South Coast, bluffs below the Ritz-Carlton, upper Salt Creek, Salt Creek Beach Park Comment
  POM319268  Atriplex semibaccata Patricia Wilder 1970-6-27 5387 Orange Along strand of Capistrano Beach. 3 Comment
  RSA74876  Atriplex semibaccata Elroy Robinson 1935-6-26 s.n. Orange Along Santa Fe Railway, El Toro, south of Los Angeles. Comment
  RSA292521  Atriplex serenana James Henrickson 1972-10-21 8064 Orange Newport Beach, So. of Jamboree Rd., E. of Irvine Coast Country Club near U.C. Irvine., Irrigated grassland eventually to be used for large Newport Beach Business Center. 46 Comment
  UCR158034  Atriplex serenana Adrian Wolf 1998-7-1 404 Orange South Coast, Peters Canyon Channel, east of channel near Harvard Ballfield, between Harvard Ave. & creek, south of Warner Ave. to Barranca 15 Comment
  UCR158033  Atriplex suberecta Adrian Wolf 1998-7-1 408 Orange South Coast, Peters Canyon Channel, east of channel near Harvard Ballfield, between Harvard Ave. & creek, south of Warner Ave. to Barranca 15 Comment
  RSA528044  Atriplex subspicata A. C. Sanders 1990-10-6 10189 Orange Newport Bay, North Star County Beach area on the SW end of the bay, ca. 2 km inland of Highway 1. 1 Comment
  SD133116  Atriplex triangularis A. C. Sanders 1990-10-6 10189 Orange Newport Bay, North Star County Beach area on the southwest end of the bay, ca. 2.0 km inland of Highway 1. 0 Comment
  RSA411865  Atriplex truncata Gertrude Dunn 1930-8-9 s.n. Orange Vacant lot 1/2 mi. east of Huntington Beach. Comment
  RSA65356  Atriplex truncata F. W. Peirson 1924-8-29 5073 Orange 4 miles south of Santa Ana. Comment
  CHSC104028  Atriplex watsonii Valerie Soza; K. Clark, L. Gross, W. Miller, F. Roberts, G. Wallace 2001-4-4 1100 Orange Seal Beach National Wildlife Refuge: Seal Beach U.S. Naval Weapons Station, across access road from Nature Center (Bldg 226). 3 Comment
  POM254669  Atriplex watsonii F. W. Peirson 1924-2-10 4533 Orange Corona Del Mar Comment
  RSA234520  Atriplex watsonii James Henrickson 1970-7-25 5033 Orange 3.5 miles NW of Huntington Beach on sandy margin of Bolsa Bay, 1/4 mile SE of Warner Ave. along Pacific Coast Hwy. 0 Comment
  RSA678745  Atriplex watsonii Valerie Soza, Kevin B. Clark, LeRoy Gross, Will Miller, Fred Roberts, Gary D. Wallace 2001-4-4 1100 -b Orange Seal Beach National Wildlife Refuge: Seal Beach U. S. Naval Weapons Station, across access road from Nature Center (Bldg 226). 3 Comment
  UCR192481  Avena barbata A. C. Sanders, Fred M. Roberts 2008-3-25 34517 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  UCR154264  Avena fatua Mark A. Elvin 2004-5-2 3421 Orange Southern Coastal, Irvine: San Joaquin Freshwater Marsh, near Campus and University Drives; 1.7 km (air) NNW UC Irvine campus center 3 Comment
  RSA0042730  Avena fatua David Barrios 1991-5-1 8 Orange 1500 ft. Northwest of Fairmont Ave and Quail cir., Yorba Linda. 365 Comment
  CHSC39255  Baccharis douglasii M. O. Dillon 1977-4-12 934 Orange Santa Ana Mts., Silverado Canyon. Comment
  RSA655626  Baccharis douglasii A. C. Sanders 2000-4-19 23336 Orange Bolsa Chica Lagoon, along dirt roads in oil field, east of Hwy 1, east of Bolsa Chica St. 0 Comment
  RSA93212  Baccharis douglasii F. W. Peirson 1924-10-18 5244 Orange Spring hole, Wintersberg Comment
  VVC1118  Baccharis emoryi A. C. Sanders, J. Mac 1998-10-17 22265 Orange Coastal flats, Bolsa Chica, near Bolsa Bay, south of Warner Ave., E of the Pacific Coast Highway .3 Comment
  JEPS57449  Baccharis glutinosa L. R. Heckard with T. I. Chuang and R. Bacigalupi 1968-7-16 2044 a Orange north of (across U.S. Highway 101 from Huntington State Beach) Newport Beach; Bolsas Marsh Comment
  SD237301  Baccharis glutinosa A. C. Sanders, Fred M. Roberts, Jutta Burger 2009-10-21 37201 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago, Santiago Canyon near mouth of Limestone Cyn., at Agustine Staging Area. 259 Comment
  UCD129392  Baccharis malibuensis R. E. Riefner Jr.; A. Wolf 2000-8-23 20- 732 Orange NCCP North Ranch Policy Plan Area. Fremont Canyon: north of Santiago Creek and immediately south of major stream fork. 304 Comment
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Jan 6 2018
  UCR119304  Baccharis malibuensis R. E. Riefner Jr., Adrian Wolf 2000-8-23 20- 732 Orange Santa Ana Mountains, North Ranch Policy Plan Area. Fremont Canyon: north of Santiago Creek and immediately south of major stream fork 305 Comment
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Jan 6 2018
  CAS-BOT-BC99445  Baccharis pilularis B. Pitzer; T. Tennant 1997-11-8 3376 Orange Crystal Cove State Park: Pelican Point Area, grassland area between Pacific Coast Hwy & the bike trail 30 Comment
  UCR186682  Baccharis pilularis T. B. Salvato, Katie Kurtz 2006-10-15 1915 Orange South Coast, Irvine, San Diego Creek flood control channel, near Michelson Drive and Harvard Avenue 6 Comment
  CAS-BOT-BC133221  Baccharis pilularis subsp. consanguinea T. B. Salvato 2010-10-27 5131 Orange South Coast: Dana Point Headlands, Hilltop Park, north of Scenic Dr. and west of Green Lantern St., overlooking Dana Point Harbor 84 Comment
  UCR222885  Baccharis pilularis subsp. consanguinea T. B. Salvato 2010-10-27 5127 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
  IRVC29766  Baccharis salicifolia Barry S. Nerhus, Mark A. Elvin 2006-11-4 7 Orange Huntington Beach, Bolsa Chica Wetlands, SW portion of Reserve beside Pacific Coast Highway. Southern Coastal 0 Comment
  SEINET899257  Baccharis salicifolia L. Freeman 1963-1 142 Orange Diamond Bar Ranch in Brea Canyon, Santa Ana Mountains. 244 Comment
  UCR192736  Baccharis salicifolia A. C. Sanders, Fred M. Roberts 2008-5-6 35231 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
  CAS-BOT-BC106667  Baccharis salicina Peter H. Raven 1957-9-28 11382 Orange In moist spot, salt marshes at north limits of Surfside Comment
  RSA0035665  Bacopa monnieri R. E. Riefner Jr. 2012-7-1 12 -295 Orange city of Mission Viejo, Oso Creek, c. 1.3 mi north 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
  SEINET5585508  Bahiopsis laciniata R. E. Riefner Jr. 2013-1 13 -56 Orange Anaheim Hills, vicinity Hidden Canyon Rd. at Avenue De Santiago. 305 Comment
  RSA797908  Barbarea orthoceras R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49818 Orange Santa Ana Mountains: Trabuco Canyon Comment
  RSA733821  Barbarea vulgaris Keith E. Hoffmaster 1935-5-5 623 -424 Orange San Juan Canyon., Santa Ana Mts. Comment
  CLARK-A1528-966  Bassia hyssopifolia Patricia A. Andrews 1975-6-26 5909 Orange Capistrano Bay Beach 9 Comment
  POM202235  Bassia hyssopifolia L. M. Booth 1932-8-5 1348 Orange West Newport Beach Comment
  RSA5864  Bassia hyssopifolia C. B. Wolf 1932-9-13 4022 Orange Bryant Ranch. 3/10 miles W of Los Alamitos Blvd.700 ft. south of Bryant Ave., (800 ft. east & 700 ft. south of NW corner of SW 1/4 sec. 30 T4S R11W) 7 Comment
  CAS-BOT-BC75514  Batis maritima L. R. Abrams 1917-6-23 6563 Orange Balboa. Comment
  LA105119  Batis maritima Barry A. Prigge; 1988-6-30 8118 Orange eastern edge of Newport Beach, NE of Pacific Coast Hwy bridge over Santa Ana River/Greenville-Banning channels 0 Comment
  RSA439758  Batis maritima Anstruther Davidson 1907-9-1 1769 Orange Newport Comment
  SFV16189  Batis maritima R. K. Stachelek, B. Anderson, F. Schropshire 1995-3-1 42 Orange Newport Beach, Upper Newport Bay on Back Bay Drive about 0.5 miles north of Shellmaker Island. Margins of salt marsh. Comment
  UCD114085  Batis maritima A. C. Sanders 1990-10-6 10195 Orange Newport Bay, North Star County Beach area on the SW end of the bay, ca. 2 km inland of Hwy 1. 1 Comment
  UCR26036  Batis maritima Wayne R. Ferren 1980-8-27 2330 B Orange South Coast, along channel in Newport Backbay west side of Backbay Drive, about 1.5 km northeast of Hwy 1, Newport Beach Comment
  POM17862  Bebbia juncea Philip A. Munz 1923-7-8 73226 Orange Santa Ana River Canyon Comment
  POM212046  Bebbia juncea C. B. Wolf 1931-7-25 2295 Orange N side of pear orchard, Rancho Santa Ana, Santa Ana Canyon 122 Comment
  UCR37789  Bebbia juncea Steve Boyd, L. LaPre 1981-5-27 s.n. Orange Santa Ana Mtns., Northern end of the Santa Ana Mtns., along powerline road on ridges east of Weir Canyon & at the head of Gypsum Canyon. Comment
  UC1119033  Bebbia juncea var. aspera A. Lewis 1934-3-1 334 Orange Corona, along r.r. Santa Ana Canyon Corona, Santa Ana Canyon 121 Comment
  UCR237916  Beta vulgaris Mark A. Elvin 2003-2-2 2296 Orange South Coast, San Joaquin Marsh, UCI campus SSE of intersection of Jamboree Blvd. and Campus Dr. 2 Comment
  RSA724044  Bidens frondosa R. E. Riefner 2004-9-18 04 -420 Orange City of Yorba Linda; Santa Ana River, Horseshoe Bend, near La Palma Rd. and Via Del Rio Rd. 106 Comment
  RSA160501  Bidens laevis J. D. Olmsted 1959-9-22 982 Orange Along Santa Ana River N of Sycamore Park along Hwy. 8-9mile WSW of Corona, betw Santa Ana Mts and Puente Hills to Pacific Ocean 137 Comment
  IRVC20225  Bidens pilosa Fred M. Roberts, K. G. Marsh 1982-10-18 834 Orange Temple Hill, east margin of Top of the World School, Laguna Beach 295 Comment
  UC536947  Bidens pilosa Lawrence M. Booth 1932-7-19 1276 Orange Bolsas Marsh Comment
  CAS-BOT-BC127999  Bidens pilosa Ira L. Wiggins 1965-11-5 20328 Orange Orange grove on N. side of Chapman Avenue near Kraemer Road, Fullerton Comment
  UC1090423  Bloomeria crocea Milo S. Baker 1958-5-20 13306 Orange Newport Bay Comment
  RSA652086  Bloomeria crocea Bob Edwards 1948-5-2 sn Orange Orange: 4.5 miles east of Orange in an open field near a Catholic cemetery. 107 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
  UCR242754  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
  RSA362294  Boisduvalia densiflora Fred M. Roberts 1985-6-7 1861 Orange Santa Ana Mountains: Main Divide Truck trail, 2.2km ESE Los Pinos Peak. 1005 Comment
  UCR12590  Bolboschoenus maritimus subsp. paludosus J. S. Davis 1972-5-6 720506- 10 Orange South Coast, Newport Beach, between corner of San Joaquin Hills Road & Back Bay Road, & salt marsh flats. 0 Comment
  UC520300  Bolboschoenus robustus Joseph Andorfer Ewan 1932-7-29 7728 Orange Newport Lagoon Comment
  RSA0059072  Bolboschoenus robustus CNPS Accuracy Assessment Team 2014-7-7 9342 .1 Orange San Joaquin Freshwater Marsh Reserve. Comment
  RSA703844  Bothriochloa barbinodis D. E. Bramlet, Fred M. Roberts 2003-3-13 3337 Orange Donna O'Neill Reserve. North east ridge line 762m W of Cristianitos Rd., and 1.15 km N of the E-W Access road., 11S 04 46 955E, 37 05 838N) 198 Comment
  UCR174231  Bothriochloa barbinodis A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33056 Orange Peninsular Range; Santa Ana Mtns., San Juan Canyon, from Lower San Juan Picnic Area to c. 1 mile downstream, parallel to Hwy 74 and near Riverside Co. line 396 Comment
  UCSB50629  Bothriochloa barbinodis Roberts, Fred 1982-6-30 Orange Laguna Nigel, Niguel Hill, Pacific Island Dr; 2.0 km SE Aliso Park; 1.3 km E Bench Mark 133 Comment
  CAS-BOT-BC145854  Bothriochloa laguroides subsp. torreyana John Thomas Howell 1927-6-5 2437 Orange Santa Ana Canyon. 152 Comment
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Jan 27 2021
  CAS-BOT-BC95425  Bowlesia incana Helen D. Geis 1902-1-1 526 Orange Santiago Creek Comment
  IRVC18518  Bowlesia incana A. B. McGee 1981-3-27 Orange UCI Ecological Preserve. Irvine Comment
  RSA625803  Bowlesia incana Scott D. White, Noel Davis 1998-4-24 6339 Orange Mission Viejo Area: Aliso Creek watershed, E of El Toro Rd. just N of jct. w/ Valley Vista Wy. Large proposed subdivision called 'Saddleback Meadow.' 305 Comment
  SEINET3156098  Bowlesia septentrionalis E. K. Balls 1950-3-7 14446 Orange Administration Grounds of Rancho Santa Ana Botanic Garden Comment
  IRVC1027  Brassica geniculata I. L. Wiggins 1965-10-24 20281 Orange [East Coyote Hills] along Skyline Dr. near Raymond St. Fullerton Comment
  UCR193931  Brassica geniculata A. C. Sanders, Fred M. Roberts 2008-7-16 35863 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hangmans Tree Canyon 379 Comment
  CLARK-A1528-982  Brassica nigra Patricia A. Andrews 1975-6-26 5915 Orange Capistrano Bay Beach 9 Comment
  RSA651825  Brassica rapa var. rapa Norman Willis 1948-2-8 s.n. Orange 2 miles E of Orange 60 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
  RSA750066  Brickellia californica A. C. Sanders, Fred M. Roberts 2008-9-18 36067 Orange Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge 320 Comment
  RSA696331  Bromus Keith E. Hoffmaster 1927-5-2 s.n. Orange Santa Ana Comment
  UCR99876  Bromus arizonicus Scott D. White 1993-3-5 1124 Orange Tustin. Marine Air Corps Air Station: SE of Red Hill Ave and NE of Barranca 15 Comment
  POM50858  Bromus carinatus Le Roy Abrams 1901-06 1844 Orange Mt. Santiago. Comment
  RSA731974  Bromus carinatus A. C. Sanders, Fred M. Roberts 2008-4-8 34751 Orange Peninsular Range; Lomas de Santiago, Loma Ridge, SSE of Santiago Reservoir on Loma Ridge Spur Rd., above Dripping Springs Loop Rd 457 Comment
  UCR191476  Bromus carinatus A. C. Sanders, Fred M. Roberts 2008-4-8 34751 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, SSE of Santiago Reservoir on Loma Ridge Spur Rd., above Dripping Springs Loop Rd. 457 Comment
  SEINET10520186  Bromus carinatus LeRoy R. Abrams 1903-4-18 Abrams 3271 Orange Trabuco arroyo near Capistrano. Comment
  CAS-BOT-BC149276  Bromus carinatus var. carinatus Ira L. Wiggins 1966-3-16 20528 Orange Roadside bank near entrance to Firestone Boy Scout Reservation. Comment
  UC204884  Bromus carinatus var. carinatus R. L. Pendleton, F. M. Reed 1907-7-25 1195 Orange near Modjeska Falls (Lake Tahoe Region); Lake Tahoe Region Comment
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Sep 11 2013
  CAS-BOT-BC156202  Bromus catharticus I. L. Wiggins; J. H. Thomas 1962-6-27 308 Orange Near intersection of 18th and Main Streets, Santa Ana. Comment
  RSA734688  Bromus catharticus A. C. Sanders, T. B. Salvato 2008-5-13 35355 Orange Lomas de Santiago, Santiago Canyon above (S of) mouth of Hangman Tree Canyon, just below Modjeska Canyon confluence 366 Comment
  UCR247915  Bromus catharticus Fred M. Roberts 2012-7-18 7678 Orange SAN JOAQUIN HILLS: Newport Beach, Buck Gully, Buck Gully Trail, west end, just east of north terminus of Poppy Street and 2.1 km WNW summit of Pelican Hill 37 Comment
  SEINET14401104  Bromus catharticus Czarnecki 1966-5-20 108 Orange Near State College Blvd and Yorba Linda Blvd, Fullerton Comment
  CAS-BOT-BC156002  Bromus diandrus John Thomas Howell 1927-6-9 2466 Orange North side Santa Ana Canon [Canyon]. 152 Comment
  RSA0013959  Bromus diandrus Fred M. Roberts 2008-5-7 6939 Orange Lomas de Santiago: Loma Ridge, Limestone Ridge between Dripping Spr. and Limestone Cyn., 3.5 km NW Bolero Lookout and 1.7 km E Bee Peak. Irvine Ranch Conservancy. 481 Comment
  UCR100463  Bromus hordeaceus B. G. Pitzer 1996-4-30 2760 Orange South Coast, Upper Newport Bay, Calif. Dept. Fish & Game Ecological Reserve, off (W of) Jamboree Road 6 Comment
  RSA650632  Bromus hordeaceus Daniel Truong 1991-5-5 13 Orange Irvine Regional Park, left field adjacent to main entrance, within 1/4 mile radius of ''closed area''. Comment
  UCR242753  Bromus madritensis Fred M. Roberts 2012-5-10 7581 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
  RSA697038  Bromus rigidus var. gussonei Keith E. Hoffmaster 1927-5-2 s.n. Orange Santa Ana Comment
  CAS-BOT-BC161823  Bromus rubens John Thomas Howell 1927-6-9 2465 Orange North side Santa Ana Canon [Canyon]. 152 Comment
  UCD59511  Bromus rubens Beecher Crampton 1963-5-7 6791 Orange Ca. 11 miles northeast of San Juan Capistrano, State Hwy. 74, Lower San Juan Canyon, Santa Ana Mountains. Comment
  RSA45  Bromus rubens J. T. Howell 1927-6-9 66 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA650419  Bromus rubens R. B. Newcom 1948-4-24 25 Orange approx. 3 miles N.W. of Irvine Park. Comment
  RSA696611  Bromus rubens Ranki s.n. Orange Casta Mesa Comment
  RSA625804  Bromus sterilis Scott D. White, Noel Davis 1998-5-21 6548 Orange Santa Ana Mountains, Mission Viejo Area: Aliso Creek watershed, east of El Toro Road just N of junction w/ Valley Vista Way., 33?40.5'N, 117?37'W. 305 Comment
  UC124604  Cakile edentula A. Davidson, M. D. 1908-5-2 1789 Orange s Newport Bay Newport Bay Comment
  UC1713783  Cakile edentula D. L. Crawford Jul 1928 Orange Abalone Point; Laguna Beach Region, Abalone Point Comment
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Dec 7 2009
  CAS-BOT-BC36892  Cakile edentula var. edentula A. Davidson M. D. 1907-9-1 1770 Orange Newport. Comment
  CSUSB524  Cakile maritima R. P. Sunderman 1968-5-11 S. N. Orange Beach just south of Corona del Mar Comment
  UC907536  Calamagrostis koelerioides Clark H. Gleason 1949-8-5 Orange near Hidden Ranch; Cleveland National Forest, Black Star Canyon Comment
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May 27 2008
  RSA737234  Calandrinia breweri R. E. Riefner 2008-3-12 08 -34 Orange Irvine Ranch Reserve, North Irvine Ranch, East Fork of upper Fremont Canyon along Black Star SCE Rd. 716 Comment
  SBBG133611  Calandrinia breweri R. E. Riefner Jr. 2008-3-12 08 -34 Orange Irvine Ranch Reserve, N Irvine Ranch, E Fork of upper Fremont Cyn along Black Star SCE RD 715 Comment
  IRVC29098  Calandrinia ciliata Fred M. Roberts 1989-3-17 4213 Orange Aliso Canyon, 3.3km SSE Moulton Pk. Aliso-Wood Canyon Regional Park 30 Comment
  JEPS61646 Image available Calochortus catalinae Alice King Apr 1908 Orange Santa Ana Mountains Comment
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Feb 24 2018
  RSA539373  Calochortus catalinae Fred M. Roberts, Karlin G. Marsh 1989-3-7 4192 Orange Lomas de Santiago: Loma Ridge, tributary to Hicks Canyon, ca. 1.9 kilometers WSW Bee Survey Mark. 134 Comment
  RSA769608  Calochortus catalinae E. W. Lathrop 1966-5-23 6098 Orange 4 miles northeast of Lake Irvine, Black Star Canyon, Cleveland National Forest, Trabuco District Comment
  SD232135  Calochortus catalinae Mark Elvin, Charles Gorenst 1996-3-16 113 Orange Coastal Plains & Basins; south Coastal Plain region: Crystal Cove State Park. 300 m down hill from no brains trail. Comment
  RSA649686  Calochortus plummerae R. E. Riefner 2000-7-8 20 -625 Orange NCCP North Ranch Policy Plan Area. On ridgeline overlooking upper W fork of Fremont Canyon; located E of Main Divide Road and SE from Windy Ridge cypress forest. 438 Comment
  RSA16335  Calochortus splendens Percy C. Everett 1935-6-18 7199 Orange Santa Ana Mountains, Main Divide Motorway. 7.0 miles from Santiago Peak. 1311 Comment
  RSA16422  Calochortus splendens Percy C. Everett 1935-5-19 6874 Orange Santa Ana Mountains, Baker Canyon, West Ladd Truck trail. 305 Comment
  RSA651261  Calochortus splendens Russell S. Woglum 1932-4-16 s.n. Orange Trabuco Canyon, Santa Ana Mountains, Cleveland National Forest Comment
  UCR150909  Calochortus splendens Valerie Soza, LeRoy Gross 1999-6-10 525 Orange Santa Ana Mountains, Southwestern extension of Modjeska Peak, off dirt road to summit, off Main Divide Road 1555 Comment
  UCR191023  Calochortus splendens A. C. Sanders, Fred M. Roberts 2008-4-22 35013 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
  UCR192096  Calochortus splendens A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35291 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir 300 Comment
  RSA668158  Calochortus splendens Michael C. Long, Ian Swift 2001-5-10 MCL- 558 Orange Soledad Canyon, N of Soledad Canyon Road at Bee Canyon. 537 Comment
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Jul 15 2019
  RSA0042761  Calochortus weedii J. Vlahos 1934-6-2 s.n. Orange Hills around Orange Co. Park. Comment
  RSA0014068  Calochortus weedii var. intermedius Fred M. Roberts, Richard E. Riefner 2010-5-30 7020 Orange Santiago Canyon Rd. in small canyon below Irvine Mesa, 1.1 km SE Silverado Sch., c.a. 2 km by road SE Silverado Cyn. Rd. junction 337 Comment
  RSA0135555  Calochortus weedii var. intermedius David E. Bramlet 2004-6-3 3596 Orange Peninsular Ranges; Santa Ana Mountains region: Tributary to Williams Cyn, 610m SW of Williams Cyn., & 122mW of the existing access road. 494 Comment
  RSA271148  Calochortus weedii var. intermedius C. W. Tilforth 1977-6-15 1344 Orange Rancho Santa Ana property in the area of Horseshoe Bend of the Santa Ana River, Santa Ana Canyon, north-east Orange County. Comment
  RSA539374  Calochortus weedii var. intermedius Fred M. Roberts, Carol Roberts 1988-6-2 4040 Orange Santa Ana Mountains: Silverado Canyon, Maple Springs Truck Trail, 4.3 kmilometers above gate, 1.0 kilometer WSW Bald Peak. 820 Comment
  RSA580944  Calochortus weedii var. intermedius D. E. Bramlet 1994-6-2 2378 Orange San Joaquin Hills. On ridgeline north of Little Sycamore Canyon. The site in located 244 m NE of Little Sycamore Canyon and 1.3 km west of Laguna Canyon. Road. 165 Comment
  RSA773557  Calochortus weedii var. intermedius Fred M. Roberts 2008-6-3 7027 Orange Lomas de Santiago: Loma Ridge, East Fork Rattlesnake Canyon, ca. 2.5 km NE of Rattlesnake Reservoir spillway and 2.6 km ENE Bee Peak 258 Comment
  RSA773559  Calochortus weedii var. intermedius Fred M. Roberts 2008-6-3 7025 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
  UCSB06831  Calochortus weedii var. intermedius Copeland, Herbert 1938-6-29 Orange Hills back of Laguna Beach Comment
  UCR132888  Calochortus weedii var. weedii Adrian Wolf 2000-6-20 464 Orange Santa Ana Mtns., North Ranch Policy Plan Area, 0.62 km NNW of mouth of Black Star Canyon 305 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
  RSA749642  Calycadenia tenella D. E. Bramlet 2008-4-15 4178 Orange Hicks Cyn., 301m E Haul Rd, & 1.4km N of the Bee Cyn Access Rd. 206 Comment
  UCR191248  Calycadenia tenella A. C. Sanders 2008-4-29 35130 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
  RSA696924  Calycadenia tenella Dorothy Parsons 1932-5-3 s.n. Orange Irvine Park. Comment
  CHSC70486  Calystegia macrostegia R. A. Schlising 1973-6-25 3104 Orange SW of Corona; along dead-end road 2.1 mi SW of junction with Hwy 71. Comment
  UCR109765  Calystegia macrostegia R. D. Goeden, Don W. Ricker 1965-6-21 s.n. Orange Dana Point 61 Comment
  UCR191333  Calystegia macrostegia A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34616 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
  UCR266301  Calystegia macrostegia D. E. Bramlet 2008-3-26 4121 Orange Peninsular Range; Santa Ana Mountains, Bee Canyon, Bowerman landfill site. 202 m south of the Bee Canyon access road and 151 m west of the active landfill entrance 295 Comment
  JEPS31613  Calystegia macrostegia subsp. arida Alice King April, 1908 Orange Santiago Creek; Santa Ana Mts., Santiago Creek Comment
  UCR281536  Calystegia macrostegia subsp. cyclostegia Mitch Provance, Jeremiah George 2017-3-20 317- 124 Orange West Coyote Hills, Fullerton, vicinity of Utility Access Roads E of Gilbert Street and N of Castlewood Dr., on land previously occupied by oil fields. 137 Comment
  RSA394914  Calystegia macrostegia subsp. tenuifolia H. L. Bauer 1929-5-7 s.n. Orange Santa Ana Canyon Comment
  SD181588  Calystegia occidentalis subsp. fulcrata Valerie Soza, LeRoy Gross 1999-6-7 488 Orange Santa Ana Mountains, west side of Modjeska Peak, along Main Divide Road. Open west-facing steep slope, on upper side of dirt road. 1448 Comment
  RSA697156  Calystegia occidentalis subsp. occidentalis Kenneth Beard s.n. Orange Between Irvine & S.J. Capistrano. Comment
  POM201723  Calystegia sepium subsp. limnophila L. M. Booth 1932-6-28 1214 Orange Bolsa Chica Comment
  IRVC993  Calystegia soldanella D. W. Bryant 1965-3-27 Orange Pacific Coast Hwy and Beach Blvd. Huntington Beach Comment
  HSC6359  Calystegia soldanella B. Francis 1964-5-2 42 Orange .5 mi. S of Newport Comment
  RSA466969  Camissonia bistorta M. B. Dunkle 1933-4-9 3280 Orange Dana Point. Comment
  RSA49672  Camissonia bistorta L. R. Abrams 1901-6-15 1793 Orange Santiago Peak trail. Comment
  RSA732239  Camissonia bistorta A. C. Sanders, Fred M. Roberts 2008-4-22 35044 Orange Lomas de Santiago, valley at south end of Loma Ridge and at head of Limestone Canyon, c. 2.5 miles SW of Silverado, above spring shown on topo map. 427 Comment
  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
  POM3331  Camissonia cheiranthifolia subsp. suffruticosa D. L. Crawford 1927-8-3 742 Orange Laguna Beach Region, Aliso Pt. shore cliffs. Comment
  RSA550611  Camissonia hirtella Fred M. Roberts, Carol A. Roberts 1989-4-20 4302 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
  RSA588658  Camissonia hirtella Fred M. Roberts, Carol A. Roberts 1990-5-23 4649 Orange Santa Ana Mtns.: West Fork, Upper Long Canyon, near Main Divide Truck Trail, 4.5 km SE Los Pinos Peak. 756 Comment
  RSA0073659  Camissonia micrantha Fred M. Roberts, Lee Ann Caranza 2009-4-7 7143 Orange Dana Point Headlands: Dana Point CNLM Preserve, 0.5 km WNW Dana Point Marine Institute at Dana Point Harbor, near Interpretive Center. 70 Comment
  RSA794325  Camissonia robusta Justin M. Wood 2010-3-31 1442 Orange [Santa Ana Canyon:] Santa Ana River floodplain, 0.25 miles north of Coal Canyon wildlife corrridor, west of Green River Golf Course on bluff south of the river. 122 Comment
  UC635404  Camissoniopsis intermedia H. L. Mason 1926-4-25 2930 Orange 5 mi s Laguna Comment
  JEPS31778  Camissoniopsis lewisii Alice King 1908-1 Orange Santa Ana Comment
  CAS-BOT-BC37127  Capsella bursa-pastoris Ira L. Wiggins 1966-2-25 20476 Orange Firestone Boy Scout Reservation, east of Brea. Comment
  IRVC25563  Capsella bursa-pastoris Fred M. Roberts 1989-3-17 4203 Orange Aliso Canyon, 3.3km SSE Moulton Pk. Aliso-Wood Canyon Regional Park 30 Comment
  CAS-BOT-BC37592  Cardamine californica C. B. Wolf 1931-1-30 1826 Orange Santa Ana Mountains. Claymine Canyon. 304 Comment
  LA204276  Cardamine californica W. Pequegnat; 1938-3-19 sn Orange Santa Ana Mts. (60deg ENE) 152 Comment
  OBI6109  Cardamine californica Carl B. Wolf 1931-3-6 1851 Orange Trabuco camp ground, Trabuco cyn, W slope of the Santa Ana Mts 610 Comment
  RSA441725  Cardionema ramosissimum L. C. Wheeler 1934-1-14 2357 Orange 1 mile E mouth of Aliso canyon near Laguna. 30 Comment
  RSA653213  Carduus tenuiflorus David Barrios 1991-5-8 31 Orange 1500 ft. Northwest of Fairmont Ave and Quail cir. 365 Comment
  UCSB47610  Carex barbarae Roberts, Fred 1980-5-3 Orange Santa Ana Mtns., San Juan Canyon, near mouth of Viejo Cyn.: below Rte. 74; 2.7 km. by road ENE San Juan Guard Station; 0.4 km. WSW Bm 1100 290 Comment
  UCR193807  Carex pellita A. C. Sanders, Fred M. Roberts 2008-7-16 35860 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hangmans Tree Canyon 379 Comment
  POM202036  Carex praegracilis L. M. Booth 1932-7-1 1234 Orange Anaheim Marsh Comment
  SEINET8068417 Image available Carex praegracilis H. D. Geis 1902-1 s.n. Orange Orange County Comment
  RSA0026256  Carex spissa Fred M. Roberts 2013-6-12 7794 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
  SEINET10495943  Carissa macrocarpa Chester T. Dziekanowski, David B. Dunn; Charlene A. Bennett 1976-7-21 Dziekanowski 2417 Orange Collected around the condominium-Pacific Island Estates in Laguna Beach. Comment
  SEINET10874602  Carpobrotus aequilaterus David B. Dunn 1971-8-13 Dunn 18123 Orange Cultivated plants vicinity of Laguna Beach. Comment
  UCR19134  Carpobrotus chilensis John C. Roos 1937-2-23 1348 Orange South Coast, Laguna Beach Comment
  IRVC24127  Cassia artemisioides Gordon A. Marsh, K. G. Marsh 1988-8-5 Orange Lower Silverado Canyon wash, 0.8km E Black Star Canyon Rd.; alluvial scrub in gravel soil; area to be mined for gravel. Santa Ana Mountains Comment
  RSA732124  Castilleja affinis A. C. Sanders, Fred M. Roberts 2008-4-8 34759 Orange Peninsular Range; Lomas de Santiago, Loma Ridge, SSE of Santiago Reservoir on Loma Ridge Spur Rd., above Dripping Springs Loop Rd. 457 Comment
  UCR191780  Castilleja affinis A. C. Sanders, Fred M. Roberts 2008-3-25 34572 Orange Peninsular Range; Santa Ana Mtns., saddle on ridge near head of Weir Canyon, 5.3 miles ENE of Villa Park, 3.1 mi. N of (Santiago Reservoir) Irvine Lake 405 Comment
  RSA553115  Castilleja affinis Fred M. Roberts, Carol A. Roberts 1989-5-11 4347 Orange Santa Ana Mountains: Upper Blind canyon, east fork, along power line maintainance road, 3.9km SE Walnut Reservoir. 381 Comment
  UC407316  Castilleja densiflora subsp. gracilis LeRoy Abrams 1903-4-18 3266 Orange near Capistrano Comment
  UC1552001  Castilleja exserta Lyman Benson 1946-4-27 12052 Orange Corona del Mar; Ocean Bluff 15 Comment
  RSA731797  Castilleja minor subsp. spiralis Fred M. Roberts, Sandy Leatherman 2007-11-9 6640 Orange Santa Ana Mtns.: San Juan Canyon along San Juan Creek, 0.2km E community of San Juan Hot Springs. 222 Comment
  RSA734200  Castilleja minor subsp. spiralis Keith E. Hoffmaster 1934-7-15 117 Orange Santa Ana Mts (Modjeska) Comment
  RSA696336  Catalpa hybrida Marjorie Moody 1947-05 s.n. Orange No. Main St., Santa Ana, California. Comment
  UCR222646  Caulanthus heterophyllus D. E. Bramlet 2008-4-1 4145 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, ridgeline in upper Hicks Canyon, 162 m south of the Haul Road 346 Comment
  CAS-BOT-BC48491  Ceanothus crassifolius T. Cass 1975-4-11 74 -671 Orange Southside Baker Canyon at Santa Ana Nat. forest boundary. 396 Comment
  CAS-BOT-BC48492  Ceanothus crassifolius Helen D. Geis 1902-4-1 s.n. Orange Santiago Canyon Comment
  VVC437  Ceanothus crassifolius F. Zaebst 1954-2-23 s.n. Orange Santa Ana Mtns, Coastal side of mtns, 3 mi W of entrance to Silverado Cyn Park; roadside (N. side) 305 Comment
  RSA703699  Ceanothus crassifolius var. crassifolius Fred M. Roberts, Arthur Davenport 2004-2-20 6026 Orange Santa Ana Mtns.: San Juan Canyon, SR 74, south side of road, 0.62 km SW San Lower San Juan Picnic Ground; 1.89 km WNW Sitton Peak. 390 Comment
  SBBG4144  Ceanothus crassifolius var. crassifolius M. Van Rensselaer 1941-5-30 1673 Orange Ortega Hwy (St Hwy 74) Comment
  SBBG4156  Ceanothus crassifolius var. crassifolius M. Van Rensselaer 1936-7-7 Orange Ortega Hwy (St Hwy 74) Comment
  CAS-BOT-BC50807  Ceanothus integerrimus P. C. Everett 1935-6-19 7236 Orange Santa Ana Mts., Trabuco Canyon, 1 mi. below summit of Truck Trail 1005 Comment
  CAS-BOT-BC51167  Ceanothus leucodermis Carl B. Wolf 1941-8-15 11152 Orange Santa Ana Mts., W. slope Santiago Truck Trail 4.4 mi. belw main divide motorway 1066 Comment
  UC1070860  Ceanothus leucodermis A. Lewis Mar 1934 371 Orange Mojeska Peak Corona quad., Cleveland National Forest 1524 Comment
  UCR159779  Ceanothus megacarpus subsp. megacarpus Peter A. Bowler 2003-4-26 s.n. Orange Southern Coastal, UC San Joaquin Freshwater Marsh Reserve; bluffs along NW edge of marsh Comment
  CAS-BOT-BC83752  Ceanothus megacarpus var. megacarpus D. O. Burge 2008-4-29 989 b Orange Niguel Hill 270 Comment
  RSA95350  Ceanothus oliganthus F. W. Peirson 1925-4-11 5735 Orange slope above mill, in Silverado Canyon, Santa Ana Mountains. 915 Comment
  CHSC27881  Ceanothus oliganthus var. orcuttii Mike Cecchini 1978-3-23 3 Orange Ca. 1 km ne of Tucker Wildlife Sanctuary and .5 km se of Modjeska Reservoir, 20.5 km se of Tustin. 457 Comment
  LA44897  Ceanothus oliganthus var. orcuttii P. C. Everett; 1935-6-18 7202 Orange Santa Ana Mountains, Main Dvide Motorway 1.7 mi N. of Los Pinos Potrero 1127 Comment
  SBBG52715  Ceanothus oliganthus var. orcuttii C. Davidson 1977-5-18 5599 Orange Pleasant Pk, (on county line) Comment
  SD42370  Ceanothus oliganthus var. orcuttii P. C. Everett 1935-6-19 7234 Orange Santa Ana Mts., Main divide motorway junction with Tabuco Canyon Truck trail. 1219 Comment
  RSA171010  Ceanothus papillosus var. roweanus Robert F. Thorne 1963-7-26 32832 Orange Santa Ana Mts., Cleveland National Forest, Trabugo District. 1189 Comment
  RSA399811  Ceanothus papillosus var. roweanus Albert J. Perkins 1917-4-21 s.n. Orange Santiago Peak. South side. Comment
  SD193348  Ceanothus papillosus var. roweanus A. C. Sanders 2005-9-2 31610 Orange Upper Holy Jim Canyon , along the trail in the switchbacks. 970 Comment
  RSA30495  Ceanothus spinosus L. R. Abrams 1901-6-16 1854 Orange Trabuco Canon. Comment
  SD41970  Ceanothus spinosus Darley F. Howe 1947-4-29 Orange Santa Ana Mts. Comment
  UC774794  Ceanothus spinosus Carl B. Wolf 1941-8-15 11151 Orange w slope Santiago Truck Trail to Santiago Peak 1.2 mi above F. S. Gate; Santa Ana Mountains 609 Comment
  UCR174499  Ceanothus spinosus A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33062 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
  UC219276  Ceanothus tomentosus P. A. Munz and I. M. Johnston 1922-5-19 5311 Orange Santa Ana River Canyon 457 Comment
Read comments
Aug 8 2010
  RSA1445  Ceanothus tomentosus var. olivaceus J. T. Howell 1929-2-11 1224 Orange trail from [Claymine] Canyon to Sierra Peak, Santa Ana Mts. 335 Comment
  RSA226629  Centaurea melitensis Christopher Davidson, Gerald L. Benny 1971-6-15 1549 Orange Brea Canyon, 0.5 mi. N of Central Ave, along Brea Cr, near bridge. Comment
  RSA391496  Centaurium venustum Robert Gustafson, Gary D. Wallace 1983-6-26 2706 Orange Santa Ana Mts, Clinton Keith Road near the Jct with the Tenaja road. Comment
  CAS-BOT-BC288845  Centromadia parryi subsp. australis David D. Keck 1932-9-30 1897 Orange Ca 5 miles S of Santa Ana on road to Newport Beach Comment
  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
  IRVC26685  Centromadia parryi subsp. australis Mark A. Elvin 2003-8-24 3012 Orange San Joaquin Hills, Irvine, UCI, 100m N of the intersection of Shady Canyon Drive and Bonita Canyon Road. Southern coastal 72 Comment
  JEPS20077  Centromadia parryi subsp. australis Peter H. Raven 1957-9-28 11376 Orange N limits of Surfside Comment
  UCR256520  Centromadia parryi subsp. australis R. E. Riefner Jr. 2014-8-28 14- 310 Orange South Coast, City of Costa Mesa, Talbert Regional Park, immediately west of Starfish Ct., east of the Santa Ana River 4 Comment
  UCR191437  Cerastium glomeratum A. C. Sanders, Fred M. Roberts 2008-4-8 34731 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, head of Hicks Canyon, S of Santiago Reservoir 351 Comment
  RSA156045  Cercocarpus betuloides Peter H. Raven 1962-5-18 17753 Orange [Santa Ana Mountains] Main Divide Truck Trail at saddle about 1 mile north of Santiago Peak. 1494 Comment
  RSA5286  Cercocarpus betuloides Carl B. Wolf, B. D. Stark 1932-12-19 s.n. Orange Main divide of Santa Ana Mts. between Sierra Peak and Skyline Drive. 762 Comment
  RSA599184  Cercocarpus betuloides Scott D. White 1997-3-28 4827 Orange Above Modjeska Canyon, proposed water tank site. 425 Comment
  RSA734966  Cercocarpus betuloides A. C. Sanders, Fred M. Roberts, A. O'Neal, D. E. Bramlet 2008-5-9 35304 Orange Weir Canyon, along old dirt road, c. 1.25 mi. ESE of Walnut Cyn Reservoir 340 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
  RSA787496  Cercocarpus betuloides var. betuloides Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49704 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  RSA528042  Cestrum nocturnum A. C. Sanders 1990-10-6 10187 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-BC279501  Chaenactis artemisiifolia R. K. Brummitt 1998-5-23 19996 Orange San Juan Canyon, 22 km NE of San Juan Capistrano on Rte. 74 300 Comment
  CAS-BOT-BC279503  Chaenactis artemisiifolia P. A. Munz 1923-6-14 7057 Orange Santa Ana Mts., Glen Ivy Trail to Santiago Peak 1066 Comment
  UC34172  Chaenactis artemisiifolia W. C. Blasdale 1891-6-1 Orange Santiago Canon Comment
  UCR192114  Chaenactis artemisiifolia A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35317 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along fire line/bulldozer cut, c. 1.5 mi. east of Walnut Cyn Reservoir 346 Comment
  UCR192486  Chaenactis glabriuscula A. C. Sanders, Fred M. Roberts 2008-3-25 34513 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  UCR193019  Chaenactis glabriuscula A. C. Sanders, Mitch Provance 2008-5-20 35415 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago area, Santiago Creek Canyon, c. 3/4 mile below Modjeska Canyon confluence 355 Comment
  UCR92597  Chaenactis glabriuscula F. M. Reed 1926-4-14 5290 Orange South Coast, Arch Beach, near South Laguna 15 Comment
  UCSB48214  Chaenactis glabriuscula Roberts, Fred 1981-5-3 Orange Santa Ana Mtns.; Hot Springs Canyon, 0.8 km. by road N of San Juan Guard Station 256 Comment
  POM351782  Chaenactis glabriuscula var. glabriuscula F. R. Fosberg 1931-6-21 5099 Orange Silverado Canyon. Santa Anita Mts. Comment
  POM351783  Chaenactis glabriuscula var. glabriuscula M. B. Dunkle 1938-6-23 5376 Orange San Juan Canyon. Comment
  POM351784  Chaenactis glabriuscula var. glabriuscula M. B. Dunkle 1935-3-3 4350 Orange San Juan Canyon. 457 Comment
  RSA598922  Chaenactis glabriuscula var. glabriuscula Scott D. White 1997-3-28 4852 Orange Above Modjeska Canyon, proposed water tank site 425 Comment
  RSA747702  Chaenactis glabriuscula var. glabriuscula Fred M. Roberts 2008-5-16 6975 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
  UCR209659  Chaenactis glabriuscula var. glabriuscula Fred M. Roberts 2008-5-16 6975 Orange South Coast, Dana Point Headlands, Center for Natural Lands Mgmt. Preserve, along north slopes above Dana Strand Beach, 0.8 km west-northwest of the Marine Institute, Dana Point Harbor 45 Comment
  RSA678495  Chaenactis glabriuscula var. glabriuscula Fred M. Roberts, Robert L. Allen, Carol Roberts 5847 Orange Dana Point Headlands: 0.8 km SSW Richard Henry Dana School north of Marguerita Drive 76 Comment
  UCR142915  Chaenactis glabriuscula var. lanosa L. R. Abrams 1903-4-13 3254 Orange South Coast, Buena Park Comment
  UC565566  Chaenactis glabriuscula var. orcuttiana H. L. Mason 1926-4-25 2914 Orange 5 mi s Laguna Comment
Read comments
Feb 3 2015
  HSC25233  Chamaesyce albomarginata R. W. Spjut 1972-2-22 2231 Orange Santa Ana Mtns., Cleveland National Forest, along Hwy. 74 305 Comment
  RSA265770  Chamaesyce maculata J. C. Roos 1937-5-21 2066 Orange Grounds of St. Joseph's Hospital, Orange. Comment
  RSA542538  Chamaesyce polycarpa var. polycarpa Fred M. Roberts 1988-5-13 3968 Orange Lomas de Santiago: Loma Ridge, Upper Limestone Canyon near spring, 2.3 km NW Bolero Lookout. 439 Comment
  RSA685682  Cheilanthes clevelandii Norman C. Cooper 1944-6-4 1339 Orange San Juan Canyon, lower camp ground. 457 Comment
  UC1221019  Cheilanthes newberryi Beecher Crampton 1963-5-7 6788 Orange ca. 11 mi ne San Juan Capistrano (State Hwy 74, Lower San Juan Canyon); Santa Ana Mts, Lower San Juan Canyon Comment
  POM9098  Cheilanthes newberryi P. A. Munz, R. D. Harwood 1920-4-24 3763 Orange Santa Ana Mountains, Sierra [Freemont] Canyon 366 Comment
  UCR179762  Chenopodium album R. E. Riefner Jr. 2006-10-8 06- 484 Orange South Coast, Irvine, San Diego Creek near 405 Freeway, between 405 and Laguna Road 51 Comment
  RSA234527  Chenopodium album James Henrickson 1970-7-25 5059 Orange 2 miles N of Huntington Beach along NE margin of Bolsa Chica Salt March 0 Comment
  RSA0027426  Chenopodium ambrosioides Fred M. Roberts 2013-7-18 7668 Orange San Joaquin Hills: Newport Beach, Buck Gully, west end, just east of north terminus of Poppy Street and 2.2 km WNW summit of Pelican Hill. 39 Comment
  RSA712937  Chenopodium ambrosioides Fred M. Roberts 2005-10-3 6302 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
  UC582775  Chenopodium ambrosioides P. A. Munz 1936-6-30 14172 Orange 5 mi s Garden Grove Comment
  POM6323  Chenopodium ambrosioides L. T. Street, G. Williams 1919-5-10 2750 Orange Turnbull Canyon. Near Whittier 305 Comment
  RSA64759  Chenopodium ambrosioides var. ambrosioides F. W. Peirson 1924-8-29 5079 Orange 6 miles from Balboa on road inland along creek. Comment
  CDA25887  Chenopodium berlandieri T. McCrainie, Mark A. Elvin 2006-9-23 3 Orange Southern Coastal; San Joaquin Marsh Freshwater Marsh, UC Natural Reserve; southwest edge, along San Diego Creek, north of University Drive, east of Highway 73. Comment
  UC284872  Chenopodium berlandieri P. A. Munz 1923-9-7 7746 Orange Santiago Peak Santa Ana Mts. 1722 Comment
  UCR192993  Chenopodium berlandieri A. C. Sanders, Fred M. Roberts 2008-5-6 35218 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hicks Canyon near Irvine Ranch gate and road junction to cement plant 180 Comment
  UCR136806  Chenopodium macrospermum A. C. Sanders, Mark A. Elvin 2003-11-9 27366 Orange Southern Coastal Slope, Irvine, San Joaquin Marsh adjacent to UCI Arboretum, UCI campus near intersection of Jamboree Blvd. and Campus Dr. 2 Comment
  UCR192988  Chenopodium multifidum A. C. Sanders, Fred M. Roberts 2008-6-17 35476 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Agustine staging area near Limestone Canyon Rd. gate at Santiago Cyn Rd. 260 Comment
  IRVC394  Chenopodium murale D. DeVault 1965-3-4 Orange Newport Beach Comment
  RSA731958  Chenopodium murale Fred M. Roberts, Sandy Leatherman 2007-11-27 6698 Orange Yorba Linda: drainage channel on east side of Amberdale Dr. ca. 0.3 km S Fairmont Blvd. 118 Comment
  SD152882  Chenopodium murale Steve Boyd, Tim Ross 1992-5-19 7429 Orange Southern Santa Ana Mountains, western edge of the wilderness along Lucas Canyon Trail from access road to Rancho Carrillo. 365 Comment
  UCR190993  Chenopodium murale A. C. Sanders, Fred M. Roberts 2008-4-22 35007 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
  RSA5575  Chenopodium murale C. B. Wolf 1932-6-28 3767 Orange Bryant Ranch: along western half of north boundary of 40 acre Valencia orange grove at Bryant Ave. and Hansen Road. 9 Comment
  UCR64876  Chenopodium pumilio Tim Hartz 1990-11-19 s.n. Orange Irvine U.C. South Coast Field Station, near the U.C. Irvine Campus. Comment
  CLARK-A1528-976  Chenopodium rubrum Patricia A. Andrews 1975-6-26 5926 Orange Capistrano Bay Beach 9 Comment
  UCR61247  Chlorogalum parviflorum Jeri Hirshberg 1988-7-7 s.n. Orange Santa Ana Mountains, Upper Blind Canyon, W-facing slopes below the transmission tower. Comment
  CSUSB404  Chlorogalum pomeridianum Cesareo Perez 1971-5-18 Orange South Mesa Drive & Lemon Street, in Villa Park. Comment
  RSA260445  Chlorogalum pomeridianum Carl B. Wolf 1932-7-2 3828 Orange Carbon Canyon, 0.5 mile above La Vida Springs. 244 Comment
  RSA5925  Chlorogalum pomeridianum Carl B. Wolf 1932-7-2 3828 Orange Carbon Canyon, 0.5 mile above La Vida Springs. 244 Comment
  RSA7043  Chlorogalum pomeridianum Carl B. Wolf 1932-7-2 3828 Orange Carbon Canyon, 0.5 mile above La Vida Springs. 244 Comment
  UCR231161  Chorizanthe fimbriata Dick Newell, Judy Booth 2011-6-26 192 Orange Peninsular Range; Santa Ana Mtns., Long Canyon Rd., NW of Hwy 74, Cleveland National Forest 965 Comment
  RSA0013863  Chorizanthe procumbens Fred M. Roberts 2012-5-10 7569 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
  RSA747627  Chorizanthe procumbens Fred M. Roberts 2008-5-16 6973 Orange Dana Point: Dana Point Headlands, CNLM Preserve, near Strands Road Gate, 0.8km WNW Marine Institute, Dana Point Harbor. 65 Comment
  UCR121046  Chorizanthe procumbens D. E. Bramlet 1983-5-28 1388 Orange South Coastal Plains, Dana Point, 154 m SW of Pacifc Coast Highway 73 Comment
  UCR143496  Chorizanthe procumbens D. E. Bramlet 1994-6-2 2379 Orange Coastal Foothills, San Joaquin Hills; ridgeline north of Little Sycamore Canyon, 244m NE of Little Sycamore Canyon and 488m west of Laguna Cyn. Road 165 Comment
  UCR223955  Chorizanthe procumbens Fred M. Roberts 2008-4-2 6842 Orange South Coast, Dana Point; Dana Point Headlands, Center for Natural Lands Mgmt. Preserve, south of NE gate along bluff, 0.5 km west of Marine Institute, Dana Point Harbor 45 Comment
  RSA65270  Chorizanthe procumbens F. W. Peirson 1924-5-30 6022 Orange Southward from Canada Salada. Comment
  RSA188  Chorizanthe staticoides J. T. Howell 1927-6-8 55 Orange Botany Garden, Rancho Santa Ana. [original location] 152 Comment
  RSA542529  Chorizanthe staticoides Fred M. Roberts, Kathy Keane 1988-5-26 4008 Orange Rancho Mission Viejo: tributary to Trampas canyon, along Christianitos rd., 2.4 km ESE Viejo Survey mark. 128 Comment
  RSA788915  Chorizanthe staticoides Fred M. Roberts 1999-6-10 5237 Orange Peninsular Range, Santa Ana Mtns. Region: Lomas de Santiago: Loma Ridge, Agua Chinon Cyn., 1.2 km S Bolero Spring and 2.4 km W Bolero Lookout. 324 Comment
  UCR37797  Chorizanthe staticoides 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
  RSA0015956  Chorizanthe staticoides subsp. chrysacantha Fred M. Roberts 2012-5-10 7566 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
  CAS-BOT-BC502067  Chrysanthemoides monilifera R. E. Riefner, Jr. 2011-11-26 11 -162 Orange City of Laguna Beach, W side of Paific Coast Hwy, N bank of Aliso Creek next to residential garden 5 Comment
  IRVC27493  Chrysanthemum coronarium Mark A. Elvin 2004-5-2 3407 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7km (air) NNW UC Irvine campus center. Southern Coastal 3 Comment
  RSA818  Cichorium intybus J. T. Howell 1927-10-29 786 Orange Bryant Ranch near Long Beach. 15 Comment
  POM201616  Cicuta bolanderi L. M. Booth 1932-7-4 1246 Orange Newport Lagoon. Comment
  POM202172  Cirsium brevistylum L. M. Booth 1932-5-15 1199 Orange Santa Ana River, 1/2 miles from ocean Comment
  UCR190970  Cirsium occidentale A. C. Sanders, Fred M. Roberts 2008-4-22 35052 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge c. 1/4 mi. SE of VABM Bee, above Bee Canyon landfill on road from Hicks Canyon Haul Rd. to Limestone Canyon, c. 3.5 miles WSW of Silverado 493 Comment
  RSA0070676  Cirsium occidentale var. californicum R. D. Goeden, D. W. Ricker 1965-6-21 s.n. Orange Pacific Coast: Dana Point. 76 Comment
  RSA788908  Cirsium occidentale var. occidentale Fred M. Roberts 2008-6-26 7060 Orange Lomas de Santiago: Loma Ridge along West Loma Ridge Road, c.a. 1 km N Haul Rd., 2.5 km NNW Bee Peak, Irvine Ranch Land Conservancy. 382 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
  RSA0059997  Clarkia bottae Karl Price 1988-5-21 48 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
  UCR234145  Clarkia dudleyana Dick Newell, Judy Booth 2012-5-6 250 Orange Peninsular Range; Santa Ana Mtns., Maple Springs Road, 1.2 miles NE of Maple Springs gate, Cleveland National Forest 695 Comment
  UC1280309  Clarkia epilobioides John M. Tucker 1941-5-30 258 Orange 2-3 mi e of w boundary Cleveland National Forest (Ortega Highway) Comment
  RSA688983  Clarkia purpurea Fred M. Roberts, D. E. Bramlet 2003-4-10 5641 Orange Rancho Mission Viejo: Donna O Neill Land conservancy, Back Road, ridge between Cristianitos Cyn, and Segunda Deshecha Canada, 1.45km WNW Gato Gate. 216 Comment
  UCR192223  Clarkia purpurea A. C. Sanders, Fred M. Roberts 2008-5-6 35275 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, upper Limestone Canyon, 2.9 mi. NNW of El Toro 379 Comment
  UCSB48212  Clarkia purpurea subsp. quadrivulnera Roberts, Fred 1981-5-3 Orange Santa Ana Mtns; Hot Springs Cyn; 0.8 km by road N of San Juan Guard Station 256 Comment
  SFV16197  Claytonia perfoliata R. K. Stachelek, B. Anderson, F. Schropshire 1995-3-1 46 Orange Newport Beach, Upper Newport Bay on Back Bay Drive about 0.5 miles north of Shellmaker Island. Mesic roadside at base of coastal bluff adjacent to semi-disturbed coastal sage scrub area. Comment
  RSA184092  Claytonia perfoliata subsp. mexicana I. L. Wiggins 1966-3-22 20548 Orange Silverado Canyon about 5 miles above Ranger Station, Cleveland National Forest. Comment
  UCR119303  Clematis lasiantha R. E. Riefner Jr., Adrian Wolf 2000-6-1 20- 455 Orange 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. 473 Comment
  SBBG128687  Clematis lasiantha R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49689 Orange Sierra Peak; Santa Ana Mtns 900 Comment
  CAS-BOT-BC92807  Clematis pauciflora Munz; Street; Williams 1919-5-3 2651 Orange Santa Ana River Canon [Canyon]. Comment
  RSA386282  Clematis pauciflora M. B. Dunkle 1936-3-14 4701 Orange San Juan Canyon. Comment
  RSA386283  Clematis pauciflora M. B. Dunkle 1936-3-28 4715 Orange Silverado Canyon. Comment
  POM183958  Cleome isomeris P. A. Munz 1932-3-29 12188 Orange Costa Mesa. Comment
  RSA329669  Cleome isomeris G. D. Wallace 1966-4-16 479 Orange Along Hwy 101 about 10 miles north of Camp Pendleton. Comment
  RSA449086  Cneoridium dumosum Albert J. Perkins 1921-3-15 s.n. Orange Laguna Heights, hill S.W. of oil well. Comment
  IRVC26428  Cneoridium dumosum Mark A. Elvin 2004-2-15 3146 Orange UCI Arboretum Southern Coastal 15 Comment
  RSA699998  Collinsia bicolor L. C. Hull 1934-4-15 s.n. Orange Laguna Hills Comment
  RSA564111  Collinsia heterophylla var. austromontana B. Pitzer, S. Hemstreet 1992-5-27 1954 Orange Cleveland National Forest. Along road (3S04) to Blue Jay Group Campground, off State Hwy 74 (Ortega Hwy). Approx. 2 mi. (airline) W of El Cariso Campground. 762 Comment
  UCR227635  Collinsia parryi Robt. L. Allen, Fred M. Roberts, Christopher M. Barnhill 2003-4-26 12365 Orange Santa Ana Mountains, San Juan Canyon, San Juan Loop Trail near Upper San Juan Campground 523 Comment
  CDA22512  Conium maculatum Mark A. Elvin, B. S. Herhus 2006-11-4 5254 Orange Southern Coastal; Huntington Beach; 1.5 km southwest of Wintersburg, southwest of junction Slater and Goldenwest; Shipley Nature Center. Comment
  UCR186683  Conium maculatum T. B. Salvato, Katie Kurtz, Mitch Provance 2006-10-15 1904 Orange South Coast, Irvine, San Diego Creek flood control channel, between Campus Drive and Michelson Drive 6 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
  RSA699123  Conium maculatum J. Vlahos s.n. Orange Santa Ana River by Fairview. Comment
  RSA699124  Conium maculatum J. Vlahos 1934-6-9 s.n. Orange Santa Ana River by Fairview. Comment
  IRVC972  Convolvulus arvensis L. McCabe 1965-5-3 Orange [Newport] Back Bay: Newport Beach Comment
  POM201722  Convolvulus arvensis L. M. Booth 1932-5-26 1126 Orange Newport Bay Comment
  RSA394801  Convolvulus arvensis Josephine Derigo 1941-7-13 20412 Orange Anaheim Comment
  UCR109771  Convolvulus arvensis R. D. Goeden, Don W. Ricker 1965-6-15 s.n. Orange NW of El Toro, Tustin Township, near Borrego Canyon Wash, SE edge of El Toro M.C. Air Station 107 Comment
  RSA0045317  Convolvulus occidentalis G. Jentges 1932-4-9 s.n. Orange Hillsides near Orange Park Acres. Comment
  UCR267211  Convolvulus simulans Fred M. Roberts, Megan Lulow 2009-3-18 7136 Orange Santa Ana Mtns., LOMAS DE SANTIAGO: Loma Ridge, Lower Hicks Canyon, about 350 meters from south side of Haul Road, 1.9 km E Rattlesnake Cyn. Reservoir Dam and 2.1 km W Bee Peak 172 Comment
  CAS-BOT-BC286165  Conyza canadensis Ira L. Wiggins 1965-10-24 20286 Orange At corner of Yorba Linda Blvd. and State College Blvd., Fullerton Comment
  RSA743521  Conyza canadensis Fred M. Roberts, Carol A. Roberts 2008-9-28 7113 Orange Dana Point: Dana Point Headlands, CNLM Preserve near NE Gate, 0.5 km W Marine Institute (Dana Point Harbor). 75 Comment
  IRVC15219  Conyza coulteri Karlin G. Marsh 1977-9-8 none Orange Newport Beach; in arroyo between MacArthur Blvd. and Ford Aeroneutronics. southern coastal Comment
  RSA725587  Conyza floribunda Fred M. Roberts 2007-8-6 6561 Orange San Joaquin Hills: Laguna Beach, Laguna Cyn. on east side of Laguna Cyn. Rd. adj. to dog park, 1.2 km S (air) from El Toro Road and 1.8 km WSW Moulton Survey Mk. 52 Comment
  UCR179759  Conyza floribunda R. E. Riefner Jr. 2006-10-8 06- 481 Orange South Coast, Irvine, San Diego Creek near 405 Freeway, between 405 and Laguna Road 51 Comment
  SBBG68641  Cordylanthus maritimus subsp. maritimus M. N. Ackley -May-1929 Orange Sunset Beach Comment
  UCR246474  Cordyline R. E. Riefner Jr. 2012-11-6 12- 532 Orange South Coast, city of Newport Beach, Newport Bay, North Star Beach, near Newport Aquatic Center, White Cliffs Drive/North Star Lane 9 Comment
  LA205799  Corethrogyne filaginifolia W. Pequegnat; 1937-9-1 sn Orange Santa Ana Mountains, Top of Horsethief Trail Comment
  RSA7470  Corethrogyne filaginifolia C. B. Wolf 1933-8-24 5394 Orange Summit of Santiago Peak, Santa Ana Mountains 1731 Comment
  POM47594  Corethrogyne filaginifolia var. filaginifolia I. M. Johnston 1924-8-29 s.n. Orange 2.5 miles north of Balboa. Comment
  RSA699122  Coriandrum sativum Anonymous 1937-4-20 s.n. Orange Near El Modena. Comment
  RSA397461  Cornus nuttallii T. W. Minthorn 1926-5-10 s.n. Orange Orange Co. Comment
Read comments
Mar 6 2019
  IRVC629  Cotula australis L. Burns 1965-4-30 Orange 19th Street. Costa Mesa Comment
  JEPS37132  Cotula australis L. M. Booth 1932-5-24 1094 Orange Newport Bay Comment
  UCR193017  Cotula australis A. C. Sanders, Mitch Provance 2008-5-20 35413 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago area, Santiago Creek Canyon, c. 3/4 mile below Modjeska Canyon confluence 355 Comment
  CHSC30401  Cotula coronopifolia Diane H. Ikeda 1980-4-5 222 Orange Upper Newport Back Bay Ecological Reserve, 0.3 mi s of intersection of Back Bay Drive and San Joaquin Rd. on Back Bay Drive. 1 Comment
  CHSC35478  Cotula coronopifolia Thomas Eakle 1971-5-28 148 Orange Ca. 2 mi. NE of Newport at Newport Bay Saltmarsh. 3 Comment
  UCR106873  Cotula coronopifolia Michael A. Patten, Steve Myers 1993-3-9 s.n. Orange Tustin, Marine Corps Air Station 107 Comment
  CAS-BOT-BC427769  Crassula connata Carl B. Wolf 1932-3-8 2673 Orange 1/2 mi. No. of Corona Del Mar. Borders of Newport Bay. 7 Comment
  IRVC18551  Crassula connata A. B. McGee 1981-3-28 Orange [UCI] Ecological Preserve. Irvine Comment
  UC1543005  Crassula connata Donald G. Nelson 1935-3-23 178 Orange just s. of <Orange thorpe> Ave. E. Fullerton Comment
  UCR103791  Crassula connata Scott D. White 1997-2-19 4700 Orange Santa Ana Mtns, above Modjeska Canyon; proposed water tank site 488 Comment
  UCR5169  Crassula connata Barbara T. Gittins, O. F. Clarke 1966-3-19 890 Orange Pacific slope, Irvine Ranch, east of University of California Irvine campus, Newport Beach 91 Comment
  IRVC25205  Cressa truxillensis Fred M. Roberts 1986-11-4 3198 Orange Anaheim Bay, north of Hog Island, Seal Beach Naval Weapons Station 0 Comment
  RSA71018  Cressa truxillensis F. W. Peirson 1924-8-29 5067 Orange 4 miles south of Santa Ana. Comment
  UCD169755  Crocanthemum aldersonii R. F. Thorne; C. W. Tilforth, E. W. Lathrop 1977-4-27 49679 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. 457 Comment
  UCR130343  Crotalaria capensis A. C. Sanders, Mark A. Elvin 2003-10-12 27318 Orange Southern Coastal Slope, Irvine, UCI Arboretum, UCI campus near intersection of Jamboree Blvd. and Campus Dr. 15 Comment
  IRVC21733  Croton californicus Fred M. Roberts, G. A. Marsh 1984-10-16 1421 Orange east bluff, Newport Back Bay, 3.6km W UCI campus center; 0.1km S Camp Survey Mark, Newport Beach 15 Comment
  CDA35289  Croton californicus Mackessy & Pope 1957-6-27 Orange Santa Ana riverbed. 0 Comment
  RSA0011251  Croton californicus Fred M. Roberts Jr. 1989-5-9 4340 Orange Santa Ana Mts: Gypsum Canyon, west fork, 5.6 km WNW Sierra Peak, c.a. 1 km S Highway 91. 146 Comment
  CHSC37637  Croton setiger T. B. Devine 1981-7-30 734 Orange Santiago Canyon Road, 1/4 mi W of its junction with Williams Canyon Road. 350 Comment
  UCSB52903  Crypsis schoenoides Roberts, Fred 1983-9-29 Orange San Joaquin freshwater Marsh; UC Irvine Campus, 1.6 km NNW UCI campus center 2 Comment
  RSA643  Cryptantha clevelandii J. T. Howell 1928-4-7 897 Orange Bee Canon, Rancho Santa Ana 152 Comment
  RSA743375  Cryptantha clevelandii Fred M. Roberts 2008-4-9 6855 Orange Dana Point: Dana Point Headlands, CNLM Preserve near Outlook 2, 0.7 km W Marine Institute (Dana Point Harbor). 52 Comment
  UCR267187  Cryptantha clevelandii Fred M. Roberts 2010-3-12 7179 Orange Southeast Coast, DANA POINT HEADLANDS: Harbor Point Park, South of Green Lantern and west of Dana Point Harbor, c. 150 meters SE Interpretive Center 50 Comment
  POM49204  Cryptantha clevelandii var. florosa L. R. Abrams 1901-6-15 1821 Orange Santiago Peak trail. Comment
  RSA699869  Cryptantha intermedia L. C. Hull 1934-3-11 s.n. Orange Ortega Highway. Comment
  RSA737545  Cryptantha intermedia Fred M. Roberts 2008-3-12 6716 Orange Dana Point: Dana Point Headlands CNLM Preserve, western side, c.a. 0.8 km W Marine Institute (Dana Point Harbor). 50 Comment
  UC484240  Cryptantha intermedia C. B. Wolf 1931-3-6 Orange 0.5 mi above Trabuco Oaks (w slope Santa Ana Mts.); Santa Ana Mts., Trabuco Canyon Comment
  RSA0127341  Cryptantha intermedia var. intermedia Fred M. Roberts 2016-3-17 8023 Orange San Joaquin Hills: City of Irvine, Ridge between Coyote Canyon and Bommer Canyon along Turtle Ridge Trail, 0.6 km NNE Signal Peak and 1.1 km SW Cattle Camp. 314 Comment
  IRVC15161  Cryptantha microstachys E. McRae 1965-4-8 Orange Costa Mesa Comment
  RSA539399  Cryptantha microstachys Fred M. Roberts, Carol A. Roberts 1988-6-2 4038 Orange Santa Ana Mtns: Silverado Canyon, Maple Springs Truck Trail, 4.3km above gate. 1.0km WSW Bald Peak. 817 Comment
  RSA542659  Cryptantha microstachys Fred M. Roberts, K. Keane 1988-5-26 4005 Orange Rancho Mission Viejo: tributary to Trampas canyon, along Christianitos rd., 2.4 km ESE Viejo Survey mark. 128 Comment
  RSA734345  Cryptantha microstachys A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34630 Orange Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 366 Comment
  UC1178547  Cryptantha microstachys Peter Kamb 1948-6-19 1094 Orange Holy Jim Canyon Santa Ana Mts. 609 Comment
  UCR191005  Cryptantha muricata A. C. Sanders, Fred M. Roberts 2008-4-22 35024 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Limestone Canyon, c. 2 miles SW of Silverado 396 Comment
  RSA0079566  Cryptantha muricata var. jonesii Fred M. Roberts, Carol A. Roberts, Kirsten Winter 1995-5-6 4939 Orange Santa Ana Mountains: Ridge between Hot Springs Canyon and Viejo Canyon, San Juan Trail, 3.4 km WNW lower San Juan Picnic Ground. 546 Comment
  IRVC20157  Cryptantha muricata var. muricata R. L. Allen 1977-4-16 Orange 0.7km N La Novia bridge; west of water path. San Juan Capistrano Comment
  CDA42236  Cucurbita digitata Bellue - Paddock Oct 1944 Orange Near Ry. [Railway?] 0 Comment
  UCR191219  Cucurbita foetidissima A. C. Sanders 2008-4-29 35141 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, western end of Loma Ridge on road to sheriff's training facility, c. 1.5 mi. SW of Santiago Reservoir 335 Comment
  IRVC19540  Cupressus forbesii Karlin G. Marsh 1982-7-30 Orange Coal Canyon, west slope, at Claymont Clay Mine. Santa Ana Mountains Comment
  MACF018551  Cupressus forbesii Ken Zysk 1971-3-29 P 80 Orange Collected at Harding Canyon, off Harding Canyon Rd. 396-1402 Comment
  RSA7199  Cupressus forbesii B. D. Stark 1933-3-17 4532 Orange Claymine Canyon, Santa Ana Mts. 609 Comment
  UCR37801  Cupressus forbesii Steve Boyd, L. F. LaPre 1981-5-27 s.n. Orange Santa Ana Mtns., Northern end of the Santa Ana Mtns., along powerline road on ridges east of Weir Canyon & at the head of Gypsum Canyon. Comment
  NY16665  Cupressus guadalupensis var. forbesii C. B. Wolf 1935-1-2 6279 Orange This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  NY16673  Cupressus guadalupensis var. forbesii C. B. Wolf 1935-1-2 6278 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
  CAS-BOT-BC224409  Cuscuta californica Carl B. Wolf 1932-7-2 3820 Orange Carbon Canyon, 1/8 mi. below La Vida Springs 213 Comment
  RSA409706  Cuscuta californica George Price 1967-5-14 s.n. Orange Silverado Canyon Comment
  RSA690978  Cuscuta californica Scott D. White, Michael Honer 2003-5-29 9432 Orange Santa Ana Mountain Foothills: Rancho Mission Viejo. Steep, gen. south-facing slopes above trib. to Trampas Canyon, ca. 0.6 air mi. S of Ortega hwy and ca. ca. 0.5 mi west of Trampas Cyn. 122 Comment
  POM201718  Cuscuta ceanothi L. M. Booth 1932-7-25 s.n. Orange Santa Ana River Comment
  JEPS47118  Cuscuta salina L. M. Booth Oct 1933 Orange Newport Comment
  POM3664  Cuscuta salina L. R. Abrams 1901-6-12 1756 Orange Anaheim Landing Comment
  RSA303460  Cuscuta salina J. R. Shevock 1970-10-19 521 Orange Newport Back Bay. 3 Comment
  CDA2109  Cuscuta subinclusa D. G. Kelch 2006-12-9 6 .558 Orange Irvine. University Dr along tidal creek just E of I-73. Comment
  RSA151149  Cycloloma atriplicifolium P. H. Raven 1961-10-15 16848 Orange Anaheim: Santa Ana River Bed at Anaheim Street crossing 61 Comment
  CDA23574  Cynodon dactylon L. D. Lyons, Mark A. Elvin 2006-9-23 422 Orange Southern Coastal; San Joaquin Marsh Freshwater Marsh, UC Natural Reserve; southwest edge, along San Diego Creek, north of University Drive, east of Highway 73. Comment
  RSA0089222  Cynodon dactylon Fred M. Roberts 2014-4-21 7864 Orange South Coast: San Joaquin Hills: Upper Laguna Lake 1 (upper Laguna Lake), north basin. 113 Comment
  SD253871  Cyperus Jim Riley 2013-10-15 118 Orange San Clemente area; 0.56 miles ESE intersection Avenida Pico and Camino La Pedriza; just N San Diego County line 68 Comment
  RSA0026257  Cyperus involucratus Fred M. Roberts 2013-6-12 7793 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
  UCR258624  Cyperus involucratus Fred M. Roberts 2014-7-25 7885 Orange South Coast, SAN JOAQUIN HILLS: Upper Laguna Canyon, Laguna Lake 1 (Upper Laguna Lake), north basin, c.a. 5.1 kn ENE summit Signal Hill. Laguna Coast Wilderness Park 113 Comment
  CAS-BOT-BC114243  Cyperus laevigatus John Thomas Howell 1927-7-18 2791 Orange Moist sandy soil, Santa Ana River bottom, Santa Ana Canyon. 152 Comment
  CAS-BOT-BC114246  Cyperus laevigatus Carl B. Wolf 1932-7-2 3814 Orange Carbon Canyon, 1/8 mi below La Vida Springs. 213 Comment
  RSA794756  Cyperus odoratus Justin M. Wood 2010-9-29 2748 Orange Santa Ana Canyon: Santa Ana River, southwest of Green River Golf Course and north of Hwy 91 and Santa Ana River Trail. 128 Comment
  RSA0036013  Cyperus odoratus Robert F. Thorne 1977-11-21 50802 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs Comment
  RSA0105083  Cyrtomium falcatum R. E. Riefner Jr. 2012-1-16 12 -5 Orange City of Newport Beach, Corona del Mar, beach area west of Morning Canyon Road. 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
  UCR230584  Cyrtomium falcatum R. E. Riefner Jr. 2011-7-1 11- 83 Orange South Coast, city of Newport Beach, beach area west of the end of Cameo Shores Road, south c. 1 mi from Poppy Avenue 2 Comment
  RSA483  Datisca glomerata J. T. Howell 1927-7-3 263 Orange Claymine Canyon near Sierra Peak. 305 Comment
  RSA562811  Datisca glomerata Steve Boyd, Timothy S. Ross 1992-5-20 7483 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of the wilderness in Lucas Canyon, along foot trail upstream from end of old roadgrade to upper homestead (corrugated steel building). 350 Comment
  UCR154262  Datura stramonium Mark A. Elvin 2004-5-2 3417 Orange Southern Coastal, Irvine: San Joaquin Freshwater Marsh, near Campus and University Drives; 1.7 km (air) NNW UC Irvine campus center 3 Comment
  JEPS12293  Datura wrightii Lawrence M. Booth 1932-7-30 1337 Orange near Newport Beach (Santa Ana River Channel, near coast); Santa Ana River Channel, near Newport Beach Comment
  SD236432  Datura wrightii A. C. Sanders, Fred M. Roberts 2008-6-17 35520 Orange Peninsular Range; Santa Ana Mtns.: middle section of Weir Canyon, SSE of Walnut Canyon Reservoir 224 Comment
  UCR16393  Datura wrightii Kenneth Hibberd 1966-4-30 660430- 4 Orange 0.5 mi S on Mohler Rd. in the Santa Ana Canyon, 5 mi west of Riverside Co. 244 Comment
  UCR192977  Datura wrightii A. C. Sanders, Fred M. Roberts 2008-6-17 35465 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Agustine staging area near Limestone Canyon Rd. gate at Santiago Cyn Rd. 260 Comment
  UC536939  Daucus pusillus Lawrence M. Booth 1932-5-12 1033 Orange Newport Bay Comment
  UC303962  Deinandra fasciculata D. L. Crawford 1915-9-1 504 Orange Huntington Beach Comment
  RSA3193B  Delphinium cardinale B. D. Stark 1931-6-6 s.n. Orange Rancho Ranta Ana. Comment
  CAS-BOT-BC116420  Delphinium patens subsp. hepaticoideum C. B. Wolf 1931-3-6 1856 Orange 1/2 mile below Trabuco Camp Ground, Trabuco Canyon, west slope of the Santa Ana Mts. 609 Comment
  UCR282155  Deschampsia danthonioides R. E. Riefner Jr. 2014-5-17 14- 127 Orange South Coast, city of Huntington Beach, east of Beach Blvd. and north of Adams Ave, along Coldwater Lane vicinity of Kingsdale Dr., Batlett Park 1 Comment
  UCD114656  Descurainia pinnata Rimo Bacigalupi; P. C. Hutchison 1962-3-16 8234 Orange along U.S. 101, 2 miles north of Doheny Beach State Park. Comment
  CAS-BOT-BC43190  Descurainia pinnata subsp. brachycarpa Carl B. Wolf 1932-3-8 2681 Orange 0.5 mile north of Corona Del Mar. Borders of Newport Bay. 7 Comment
  JEPS53438  Descurainia pinnata subsp. halictorum Alice King Mar 1908 Orange Santiago Creek; Santa Ana Mts. Comment
  VVC357  Dicentra chrysantha P. J. MacKay 1990-5-25 s.n. Orange Peninsular Range, Hwy 74 near San Juan Hot Springs 198 Comment
  JEPS64175  Dichelostemma capitatum Alice King Mar 1908 Orange near Orange County Park; Santa Ana Comment
  UCR190992  Dichelostemma capitatum A. C. Sanders, Fred M. Roberts 2008-4-22 35008 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
  RSA681019  Dichelostemma capitatum subsp. capitatum Fred M. Roberts, David E. Bramlet 2003-3-7 5567 Orange Donna O Neill Land Conservancy; West slopes of Christianitos Canyon, Middle Ridge Trail, 0.1km NW Gato Gate. 123 Comment
  SEINET10719725  Dicksonia David B. Dunn 1971-8-13 Dunn 18125 Orange Cultivated plants vicinity of Laguna Beach. Comment
  SD152749  Digitalis purpurea Steve Boyd, Tim Ross 1992-5-20 7480 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of the wilderness in Lucas Canyon, along foot trail upstream from end of old roadgrade to upper homestea. 351 Comment
  JEPS73759  Digitaria sanguinalis L. M. Booth 1932-6-28 1210 Orange Bolsas Creek Comment
  UCR246473  Dimorphotheca fruticosa R. E. Riefner Jr. 2011-7-1 11- 79 B Orange South Coast, city of Newport Beach, beach area between Shorecliff Road and Cameo Shores Road 18 Comment
  RSA699271  Diosma ericoides Ruth Greenwald, Virginia Pritchard 1938-05 s.n. Orange Santa Ana. Comment
  SD220053  Diospyros lycioides subsp. lycioides Mark A. Elvin 2004-5-2 3418 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and Universit Drs., 1.7 km (air) NNW UC Irvine campus center. 3 Comment
  SD220027  Diplachne fusca var. uninervia Mark A. Elvin 2004-5-2 3425 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7 km (air) NNW UC Irvine campus center. 3 Comment
  SD255235  Diplacus longiflorus R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49795 Orange Santa Ana Mountains: Trabuco Canyon. Comment
  SBBG103894  Diplacus puniceus B. Pitzer, S. Hemstreet 1992-5-27 1965 Orange USFS Rd 3S04 to Blue Jay Group Cmpgrd, off St Hwy 74, ca. 2 air mi W of El Cariso Cmpgrd 762 Comment
  UCR173935  Diplotaxis muralis A. C. Sanders, Mark A. Elvin 2006-5-6 32250 Orange South Coast, UC Irvine Arboretum, NE side of gardens toward Campus Dr. 15 Comment
  SDSU2450  Diplotaxis muralis D. F. Howe 1977-5-23 4951 Orange Corner of Empire & Broadway, Anaheim. Comment
  UCD114711  Diplotaxis tenuifolia W. W. Robbins 1931-5-11 2204 Orange Santa Ana. Comment
  CDA3678  Diplotaxis tenuifolia Margaret Bellue, Tubbs, Johnson Oct 1944 Orange Bataxia Street Crossing, Santa Fe. 0 Comment
  UCR240095  Distichlis littoralis Dick Newell, Judy Booth, Don Millar 2012-11-28 311 Orange South Coast, Newport Beach, Back Bay, 0.8 mi. due south of University Drive, off Brown Trail 1 Comment
  CAS-BOT-BC195672  Distichlis spicata Carl B. Wolf 1932-7-2 3815 Orange Carbon Canyon, 1/8 mi. below La Vida Springs 213 Comment
  CAS-BOT-BC208626  Distichlis spicata Bernard G. G. de Retz 1961-5-16 47611 Orange Huntington Beach Comment
  POM1195  Distichlis spicata D. L. Crawford 1916-7-26 s.n. Orange Aliso Canyon Comment
  RSA708818  Distichlis spicata Fred M. Roberts, Robert L. Allen, Chris Barnhill 2004-8-21 6113 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
  SD28114  Distichlis spicata Carl B. Wolf 1932-7-2 3815 Orange Carbon Canyon, 1/8 mile below La Vida Springs 213 Comment
  UCD64446  Distichlis spicata var. stolonifera A. A. Beetle 1958-9-7 13, 072 Orange Newport. Comment
  RSA542459  Dodecatheon clevelandii Fred M. Roberts 1988-3-15 3863 Orange Rancho Mission Viejo: Upper Gabino Canyon, 4.1 km SE Point Rancho Survey Marker. 191 Comment
  CAS-BOT-BC41674  Draba cuneifolia var. integrifolia Ira L. Wiggins 1966-2-25 20477 Orange Firestone Boy Scout Reservation east of Brea. Comment
  POM488  Draba cuneifolia var. integrifolia C. F. Baker 1904-4-1 4126 Orange Anaheim. Comment
  RSA699860  Drymocallis glandulosa Minor Warne 1934-04 s.n. Orange Laguna Canyon Forks Comment
  RSA160425  Drymocallis glandulosa var. wrangelliana J. D. Olmsted 1959-4-30 509 Orange North of Hidden Ranch in Black Star Canyon; 100 yards NW of Rattlesnake Rock, 5 miles east of Irvine Lake 732 Comment
  IRVC129  Dryopteris arguta B. Simson 1965-4-2 Orange Silverado Canyon, Silverado. Santa Ana Mountains Comment
  RSA0014995  Dryopteris arguta Fred M. Roberts 2008-5-14 6962 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. 337 Comment
  RSA124716  Dryopteris arguta E. K. Balls, Percy C. Everett 1957-11-25 22839 Orange Upper Trabuco Canyon, 2.9 mi. ne. from entrance to Holy Jim canyon, 1097 Comment
  IRVC127  Dryopteris arguta J. Morgan 1965-4-25 Orange Beacon Bay. Newport Beach Comment
  RSA791466  Dryopteris arguta Keith E. Hoffmaster 1928-5-29 36 Orange San Onofre. Comment
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Nov 19 2013
  UCSB48105  Dryopteris arguta Fritzke, S.; Roberts, Fred 1982-4-3 Orange Santa Ana Mtns.: San Juan Canyon, 2.4km ENE San Juan Guard Station; 0.3km WSW Bench Mark 1100. 88 Comment
  UC905133  Dudleya R. V. Moran 1948-6-23 3097 Orange n-facing cliff near mouth of Aliso Canyon (s of Laguna Beach); ; near mouth of Aliso Canyon, S of Laguna Beach, Orange Co. 7 Comment
  UC933205  Dudleya edulis Reid Moran 1950-4-24 3389 Orange San Clemente Comment
  CAS-BOT-BC411401  Dudleya lanceolata P. A. Munz 1919-5-4 2835 Orange Laguna Canyon Comment
  IRVC26754  Dudleya lanceolata Peter A. Bowler 2003-4-20 s.n. Orange UC San Joaquin Freshwater Marsh Reserve; bluffs along NW edge of marsh. Southern Coastal 9 Comment
  JEPS49887  Dudleya lanceolata John Thomas Howell 1927-7-3 2637 Orange Claymine Canyon Santa Ana Mtns Comment
  POM1571  Dudleya lanceolata D. L. Crawford 1916-5-10 s.n. Orange Laguna Mtns. 305 Comment
  RSA5350  Dudleya lanceolata B. D. Stark 1932-12-9 1674 Orange Dana Point Comment
  RSA663208  Dudleya lanceolata R. E. Riefner 2000-6-1 20 -456 Orange NCCP North Ranch Policy Plan Area. N of Irvine Lake and W of Black Star Cyn; W. of dirt access rd. 473 Comment
  RSA699757  Dudleya lanceolata Fred M. Roberts, D. E. Bramlet 2003-6-6 5885 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, Cristianitos Cyn., 1.41km SSW Gato Gate and 0.35km NNW of SDG&E substation. 117 Comment
  RSA83424  Dudleya lanceolata F. W. Peirson 1924-5-31 4673 Orange 5 miles southeast of Laguna Beach. Comment
  UCR119302  Dudleya lanceolata R. E. Riefner Jr., Adrian Wolf 2000-6-1 20- 456 Orange 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. 473 Comment
  UCR131887  Dudleya lanceolata J. Mallory, V. McCoy 1995-7-3 6454- 66 Orange Santa Ana Mountains: N-facing slope in Santiago Canyon, c. 0.5 mi. east of Santiago Canyon Rd; near Irvine Park 200 Comment
  UCSB42175  Dudleya lanceolata Roos, John 1965-6-16 Orange Dana Point Comment
  CAS-BOT-BC411406  Dudleya lanceolata K. Nakai 1978-2-5 211 Orange Aliso Canyon, ca. 200 m E of Calif. Hwy 1 on N facing cliffs 10 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
  RSA584715  Dudleya lanceolata Fred M. Roberts 1989-5-18 4371 Orange Santa Ana Mountains: Upper Gypsum canyon, above ridge road, ca. 6.4 km WSW Sierra Peak. 415 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
  UC971741  Dudleya multicaulis L. M. Booth 1932-5-18 1054 Orange Newport Bay Comment
  UCR52607  Dudleya multicaulis Jeri Hirshberg 1988-6-7 s.n. Orange Santa Ana Canyon, head of Gypsum Canyon, along roadbanks 412 Comment
  RSA176277  Dudleya pulverulenta R. F. Thorne 1963-7-26 32845 Orange Tin Mine Canyon above Beek's Spring, Trabuco District, Santa Ana Mts. Cleveland Natl Forest. Comment
  UCR224165  Dudleya pulverulenta subsp. pulverulenta Fred M. Roberts 2008-7-10 7076 Orange South Coast, Dana Point Headlands, CNLM Preserve, near Strands Road Gate, 0.8 km west-northwest of Marine Institute, Dana Point Harbor 65 Comment
  NY24581  Dudleya stolonifera R. V. Moran 1949-7-2 3286 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
  SD130042  Dudleya stolonifera Reid Moran 1977-6-13 24238 Orange North-facing cliff near mouth of Aliso Canyon. 10 Comment
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Nov 27 2014
  UCSB52395  Dysphania multifida Roberts, Fred; Ferren, Wayne 1982-7-21 Orange Newport Beach; Upper Newport Back Bay, Back Bay Dr., 3.5 km. N San Joaquin Hills Rd.; 3.0 km. W UC Irvine campus 2 Comment
  RSA0051322  Echidiocarya californica Keith E. Hoffmaster 1935-2-9 841 Orange Santa Ana Mts., near El Toro. Comment
  RSA0045323  Echinochloa Keith E. Hoffmaster 1940-7-22 961 Orange Santa Ana 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-BC197033  Echinochloa colona M. F. Bradshaw 1902-7-1 s.n. Orange Orange Comment
  RSA696377  Echinochloa colona Keith E. Hoffmaster 1932-8-26 s.n. Orange Santa Ana. Comment
  CAS-BOT-BC197174  Echinochloa crus-galli Ira L. Wiggins 1965-9-26 20254 Orange In Carbon Canyon about 3.5 mi. above its mouth Comment
  CAS-BOT-BC197177  Echinochloa crus-galli Ira L. Wiggins 1965-11-5 20325 Orange On N side of Chapman Avenue near intersection with Kraemer Road Comment
  CAS-BOT-BC197180  Echinochloa crus-galli Ira L. Wiggins 1965-9-26 20261 Orange At west end of Orangethorpe Estates subdivision, near Atwood Comment
  UCD60916  Echinochloa crus-galli Ira L. Wiggins 1965-9-26 20261 Orange Roadside at west end of Orangethorpe Estates subdivision, near Atwood. Comment
  RSA443850  Echinochloa crus-galli Gordon Marsh 1975-7-28 s.n. Orange Huntington Beach: East Garden Grove-Wintersburg Flood Control Channel (No. C05).. Comment
  SD247549  Echinochloa crus-galli R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49634 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs. Roadside ditch. Comment
  UCR240255  Echinochloa crus-pavonis R. E. Riefner Jr. 2006-9-16 s.n. Orange Yorba Linda, north of Chapman Ave. c. 1 mile along floodplain of Santa Ana River 98 Comment
  IRVC26815  Echinodorus berteroi R. E. Reifner 2000-8-21 20 728 Orange Irvine Lake [Santiago Reservoir], first cove SE of the dam Santa Ana Mtns. 238 Comment
  RSA151075  Eclipta prostrata Peter H. Raven 1961-10-15 16859 Orange Dyke along road to Yorba Linda just north of US Hwy 91 114 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
  RSA0038516  Ehrharta erecta R. E. Riefner Jr. 2012-2-1 12 -15 Orange city of Dana Point, Dana Point Harbor, vicinity of Puerto Pl. and Dana Point Harbor Drive 2 Comment
  RSA731651  Ehrharta erecta Fred M. Roberts 2007-10-29 6628 Orange Laguna Beach: Temple Hill, Nyes Place, c.a. 0.2 km S Moulton Meadows Park. 232 Comment
  SEINET9258835  Ehrharta erecta R. E. Riefner Jr. 2012-1 12 -15 Orange City of Dana Point, Dana Point Harbor, civinity of Puerto pl. and Dana Point Harbor Drive 2 Comment
  RSA5918  Eichhornia crassipes E. R. Johnson 1932-6-29 3808 Orange Floating in water, Santa Ana River, SW of Ranch Houses, Rancho Santa Ana. 122 Comment
  RSA592059  Elatine brachysperma R. E. Riefner 1994-4-15 94 -320 Orange Dana Hills NW of Cooks Reservoir. Comment
  RSA86  Eleocharis geniculata J. T. Howell 1927-7-18 422 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  RSA791461  Eleocharis montana Keith E. Hoffmaster 1927-10-11 149 Orange Santa Ana. Comment
  RSA603303  Eleocharis montevidensis Scott D. White, B. Leatherman 1997-1-12 5332 Orange East of San Juan Capistrano: San Juan Creek between Highway 74 bridge and Mission Vieja site, i.e. ca. 2 to 4 miles E of I-15 / Highway 74 junction. 46 Comment
  UCR174225  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 c. 1 mile downstream, parallel to Hwy 74 and near Riverside Co. line 396 Comment
  UCD169812  Eleocharis parishii R. F. Thorne; E. W. Lathrop, W. Wisura 1977-7-8 49571 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74). Along San Juan Creek. 433 Comment
  RSA723479  Eleusine coracana subsp. africana R. E. Riefner 2006-10-4 6 -477 Orange City of Huntington Beach, along Slater Ave. near Goldenwest St. 11 Comment
  RSA743554  Eleusine coracana subsp. africana R. E. Riefner 2005-9-20 5 -671 Orange City of San Clemente, along El Camino Read ca. 0.15 mi S of intersection with Los Molinos Rd. 35 Comment
  RSA6128  Elymus X gouldii C. B. Wolf 1932-6-13 3726 Orange Storm drain at Malvern and Nicholas Aves; Fullerton. 53 Comment
  UCR207543  Elymus condensatus O. F. Clarke, Roger E. Reinke 2004-11-14 s.n. Orange South Coast, Newport Back Bay 3 Comment
  CAS-BOT-BC234137  Elymus multisetus L. R. Abrams 1901-6-1 1823 Orange Santiago Pk trail Comment
  CAS-BOT-BC412640  Emex spinosa unspecified 1933-4-21 s.n. Orange Lemon Grove Comment
  CAS-BOT-BC131228  Encelia californica P. A. Munz 1920-4-11 3816 Orange Santa Ana River [Canon] Canyon near Rincon 304 Comment
  HSC5477  Encelia californica C. L. Hitchcock, C. V. Muhlick 1964-3-17 23069 Orange 8 mi. E of Yorba Linda, Santa Ana Canyon. Comment
  SBBG60833  Encelia californica M. N. Ackley -Feb-1927 Orange Newport Beach 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
  IRVC653  Encelia californica B. T. Gittins, R. Hobson 1965-4-10 Orange Comment
  UC1607997  Epilobium canum Donald G. Nelson 1933-7-16 133 Orange hills N of Fullerton 76 Comment
  CAS-BOT-BC166348  Epilobium canum subsp. canum David D. Keck 1932-9-30 1905 Orange Dana Point, near San Juan Capistrano Comment
  RSA1548  Epilobium canum subsp. canum J. T. Howell 1928-7-10 1090 Orange Trabucco Canyon, Santa Ana Mountains. 457 Comment
  UCR182903  Epilobium ciliatum Pat Akers 2006-3-25 PA4 06 Orange Yorba Linda. Santa Ana River on a large (300-400 ft) sandy/cobbly flat. south of La Palma Dr, 0.6-0.9 mi. east of Yorba Linda Dr 122 Comment
  JEPS31485  Epilobium ciliatum subsp. ciliatum L. M. Booth 1932-6-28 1212 Orange Bolsas Creek Comment
  UC537275  Epilobium ciliatum subsp. ciliatum Lawrence M. Booth 1932-6-4 1145 Orange Newport Lagoon Comment
  UCR15896  Epipactis gigantea Steve Boyd 1978-4-26 780426- 08 Orange Peninsular Range; Santa Ana Mtns., Hwy 74, 1.3 mi west of the Riverside/Orange Co. line Comment
  RSA790023  Equisetum arvense R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49566 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74) Comment
  RSA790024  Equisetum hyemale var. affine R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49565 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74) Comment
  CAS-BOT-BC57386  Equisetum laevigatum Helen D. Geis 1902-4-1 s.n. Orange Santa Ana Comment
  POM201866  Eremocarpus setiger L. M. Booth 1932-5-12 1021 Orange Newport Bay. Comment
  UC23530 Image available Eriastrum densifolium subsp. austromontanum C. W. Hamlin 1896-1 50 Orange Buena Park Comment
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Nov 20 2013
  UCR208079  Eriastrum sapphirinum subsp. dasyanthum M. B. Dunkle 1938-6-23 5380 Orange Peninsular Range; Santa Ana Mtns., San Juan Canyon Comment
  RSA759255  Ericameria cuneata Robt Allen, Reginald Durant 2008-5-16 s.n. Orange Modjeska Peak. W Facing slope within 2 meters of the access road up Modjeska Peak. Approximately midway between the peak's south-facing slope and the sharp bend in extreme N end of the road. 1643 Comment
  RSA16664  Ericameria palmeri var. pachylepis C. B. Wolf 1931-10-30 2504 Orange Rancho Santa Ana, Santa Ana Canyon. 207 Comment
  RSA264439  Ericameria palmeri var. pachylepis C. W. Tilforth 1976-10-21 1228 Orange Slopes above Santa Ana River Canyon on Rancho Santa Ana. Comment
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Mar 18 2011
  RSA450872  Ericameria palmeri var. pachylepis Fred M. Roberts 1983-12-9 1151 Orange Irvine Uc, Irvine Ecological Preserve, 0.8dm SSW Campus center. 70 Comment
  RSA54171  Ericameria palmeri var. pachylepis C. B. Wolf 1931-10-30 2504 Orange Rancho Santa Ana, Santa Ana Canyon. 207 Comment
  RSA785321  Ericameria palmeri var. pachylepis Dick Newell, Don Millar, Michael Dresser 2010-9-21 034 Orange access road on east side of Laguna Canyon Rd. at Stage Coach, 1.22 miles north of Hwy 73 toll road 111 Comment
  UCR239618  Ericameria palmeri var. pachylepis Fred M. Roberts 2012-4-27 7537 Orange Lomas de Santiago, Loma Ridge, west of SR 241, tributary to 'Las Flores' Canyon, 1.9 km southwest of Irvine Lake Park Campground and 1.2 km east-souteast of Orange County Emergency Operations Center, Hill 1311 350 Comment
  UCR58719  Ericameria pinifolia Reid Moran, G. Marsh, Jack L. Reveal 1977-6-13 24231 Orange Willow Canyon, tributary of Laguna Canyon. 125 Comment
  UCSB52475  Ericameria pinifolia Roberts, Fred 1982-10-14 Orange Laguna Beach; Temple Hill, east flank, 1.0km NNW Top of the World School; 1.9km ESE Bench Mark 104 244 Comment
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Jan 25 2020
  CAS-BOT-BC293369  Erigeron Philip A. Munz 1946-10-2 11554 Orange Rancho Santa Ana, Santa Ana River Canyon 121 Comment
  CHSC30406  Erigeron bonariensis T. B. Devine 1980-4-4 652 Orange Huntington Beach, beside Edinger Ave. ca 1.5 mi. W. of jct. with Bolsa Chica Rd. Roadside between Edinger Ave. and drainage canal just So. of Naval Weapons Station. Comment
  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
  RSA7468  Erigeron foliosus var. stenophyllus C. B. Wolf 1933-8-24 5392 Orange Summit of Santiago Peak, Santa Ana Mountains. 1707 Comment
  RSA0127346  Erigeron sumatrensis Fred M. Roberts 2016-4-29 8049 Orange Lomas de Santiago: north of Santiago Canyon Road, southwest slope of hill marked 1332 on topo maps, just west of Irvine Lake, 1.6 km S Irvine Lake dam spillway and 0.8 km NW Irvine Lake Park. 335 Comment
  RSA721834  Eriodictyon crassifolium Minor Warne 1934-4-14 s.n. Orange Laguna Canyon. Comment
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Jun 24 2009
  UCSB56682  Eriogonum cinereum Roberts, Fred 1985-7-22 Orange Irvine: MacArthur Blvd., 0.2km N Bonita Canyon Rd.; 1.6km W UC Irvine campus 15 Comment
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Feb 22 2019
  UCR231355  Eriogonum elongatum A. C. Sanders, Kent Beaman 2011-9-27 39907 Orange Peninsular Range; Santa Ana Mtns., Maple Springs Truck Trail above Silverado, at major (dry) stream crossing, 3.95 km NNW (347 deg. ) of Santiago Peak 903 Comment
  UCR261706  Eriogonum elongatum Dick Newell, Don Millar 2014-9-14 385 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, on Limestone Canyon Rd., 100 yards north of Bolero Cyn. Rd./Loma Ridge Rd. 393 Comment
  POM122566  Eriogonum fasciculatum Marcus E. Jones 1924-8-26 s.n. Orange Newport. Comment
  RSA3099  Eriogonum fasciculatum Carl B. Wolf 1931-8-9 2300 Orange 1/2 mile south of Corona del Mar beach 8 Comment
  RSA581363  Eriogonum fasciculatum R. E. Riefner Jr. 1995-4-17 95 -67 Orange San Clemente State Beach, NW bluff. Comment
  RSA650634  Eriogonum fasciculatum subsp. fasciculatum Daniel Truong 1991-5-13 22 Orange Irvine Regional Park, left field adjacent to main entrance, within 1/4 mile radius of 'closed area' Comment
  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
  CAS-BOT-BC253218  Eriogonum fasciculatum var. fasciculatum Joseph Andorfer Ewan 1932-7-28 7705 Orange Corona del Mar Comment
  SD254072  Eriogonum fasciculatum var. fasciculatum Jim Riley 2013-12-10 135 Orange San Clemente area; 0.29 miles E intersection Avenida Pico and Camino La Pedriza; just N San Diego County line 74 Comment
  UC536920  Eriogonum fasciculatum var. fasciculatum Lawrence M. Booth 1932-5-18 1057 Orange Newport Bay 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
  UCR274309  Eriogonum gracile Dick Newell, Don Millar 2016-7-19 431 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Limestone Canyon Rd., 1/2 mile SE of junction with Dripping Springs Trail 344 Comment
  SD133035  Eriogonum parvifolium Andy C. Sander 1990-10-6 10179 Orange newport Bay, Westcliff Park area on the SW end of the bay, ca. 1 km in land of Hwy 1. 0 Comment
  CAS-BOT-BC263017  Eriogonum thurberi Helen D. Geis 1902-1-1 532 Orange Santiago Cr. Comment
  RSA237  Eriogonum thurberi J. T. Howell 1927-6-6 52 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  RSA6141  Eriogonum thurberi E. R. Johnson 1933-6-22 4999 Orange Santa Ana River bottom. Rancho Santa Ana south of the Walnut Grove. 122 Comment
  CAS-BOT-BC261799  Eriogonum wrightii var. subscaposum Carl B. Wolf 1933-8-24 5404 Orange Santa Ana Mts. Summit of Santiago Pk. 1731 Comment
  RSA7392  Eriogonum wrightii var. subscaposum Carl B. Wolf 1933-8-24 5404 Orange Summit of Santiago Peak, Santa Ana Mountains. 1732 Comment
  UC718404  Eriogonum wrightii var. subscaposum Carl B. Wolf 1933-8-24 5404 Orange Summit of Santiago Pk. Santa Ana Mts., Santiago Pk. 1731 Comment
  HSC5621  Eriophyllum confertiflorum T. L. Ackerman 1964-3-28 17 Orange Irvine Park Dr. inside Irvine Park Comment
  UCD150983  Eriophyllum confertiflorum D. S. Park 2010-4-25 28 Orange Whiting Ranch Wilderness Park, large population along trail. 224 Comment
  UCR192113  Eriophyllum confertiflorum A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35316 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along fire line/bulldozer cut, c. 1.5 mi. east of Walnut Cyn Reservoir 346 Comment
  UCR193541  Eriophyllum confertiflorum A. C. Sanders, Fred M. Roberts 2008-7-3 35667 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor 415 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
  IRVC21387  Eriophyllum confertiflorum var. confertiflorum A. S. Boughey 1968-7-9 408 Orange Santa Ana mtns: upper Santiago Canyon. Peninsular Ranges Comment
  UC536892  Eriophyllum confertiflorum var. confertiflorum Lawrence M. Booth 1932-5-12 1042 Orange Newport Bay Comment
  RSA682752  Erodium botrys Scott D. White, Amanda Duchardt 2003-3-27 8846 Orange Santa Ana Mountain Foothills: Canyon bottom and west facing slopes above Canada Gobernadora. 91 Comment
  UCSB3526  Erodium botrys Wedberg, H. 1958-3-29 Orange 1/2 mile east of coast HWY on McArthur Blvd., Corona del Mar Comment
  UCR103158  Erodium brachycarpum Scott D. White 1997-3-25 4822 Orange University of California, Irvine campus, site of proposed student recreation center, east of main campus. Existing 'Farm School' and grasslands (horse pasture) between California Avenue and Culver Drive. 30 Comment
  RSA684304  Erodium moschatum Fred M. Roberts, David E. Bramlet 2003-3-13 5602 Orange Donna O Neill Land Conservancy: Flagpole Meadow, upper Shady Cyn. W of Cristianitos Canyon, 1,500m NW Sycamore Gate and 1,220m W Cristianitos Rd. 173 Comment
  JEPS51726  Eschscholzia californica Alice King June, 1908 Orange Santa Ana Comment
  OBI11817  Eschscholzia californica Carl B. Wolf 1935-5-19 6873 Orange Santa Ana Mts, Baker Cyn, W Ladd Truck Trl 305 Comment
  RSA722436  Eschscholzia californica Gray 1912-05 s.n. Orange El Modena. Comment
  POM415  Eschscholzia californica var. peninsularis D. L. Crawford 1916-5-15 990 Orange Languna Canyon. Shade Comment
  SD239814  Eucalyptus camaldulensis T. B. Salvato, Billy Deane 2006-10-16 1928 Orange South Coast: Irvine, San Diego Creek flood control channel, between Michelson Drive and the 405 Fwy (Tustin 7.5'Q) 10 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
  POM50213  Eucrypta chrysanthemifolia Helen D. Geis 1902-1 513 Orange Santiago Creek. Comment
  RSA420830  Eucrypta chrysanthemifolia Geo. L. Moxley 1917-04 184 Orange Laguna Beach Comment
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Sep 22 2011
  RSA732086  Eucrypta chrysanthemifolia A. C. Sanders, Fred M. Roberts 2008-3-25 34531 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills. 259 Comment
  UCR190979  Eucrypta chrysanthemifolia A. C. Sanders, Fred M. Roberts 2008-4-22 34995 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
  UCR98275  Eucrypta chrysanthemifolia Scott D. White 1997-3-28 4834 Orange Santa Ana Mountains, Above Modjeska Canyon, proposed water tank site. 488 Comment
  JEPS1725  Eucrypta chrysanthemifolia var. chrysanthemifolia Alice King 1908-2-23 Orange Santa Ana River Santa Ana River, Anaheim; Anaheim Comment
  UCD142560  Euphorbia albomarginata Ira L. Wiggins 1965-11-5 20323 Orange Near corner of Downling St. and Crowther Ave.; 1/2 mi. S of Placentia. Comment
  IRVC15144  Euphorbia crenulata A. S. Boughey 1968-7-9 391 Orange Santa Ana mtns: upper Santiago Canyon. Peninsular Ranges Comment
  POM8655  Euphorbia crenulata P. A. Munz 1920-4-23 3728 Orange Santa Ana Mountains, Silverado Canon. 549 Comment
  RSA2077  Euphorbia crenulata C. B. Wolf 1931-3-6 1852 Orange Trabuco Canyon, 1.5 mile below Trabuco Camp Grounds, west slope of Santa Ana Mountains. 610 Comment
  CAS-BOT-BC202545  Euphorbia misella Joseph Andorfer Ewan 1932-7-28 7708 Orange Corona del Mar Comment
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Oct 29 2020
  SD109124  Euphorbia misera Grady L. Webster 1966-12-11 7479 Orange Dana Point ocean bluffs on south-facing precipitous slopes at the tops of the bluffs Comment
  UCR9253  Euphorbia misera D. H. Wilken, Tim LeBlanc 1966-1-7 622 Orange Dana Point, north of San Juan Capistrano 15 Comment
  RSA716774  Euphorbia peplus Fred M. Roberts, Michelle Balk, Robert Allen, Chris Barnhill 2004-6-19 6065 Orange Santa Ana Mtns: Holy Jim Cyn.: Holy Jim Trail, 3.5km SE summit of Santiago Peak. 610 Comment
  UCR52297  Euphorbia polycarpa B. G. Pitzer, D. C. Hawks 1986-12-17 0381 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, on Santiago Cyn Rd., c. 1.0 mi SW of [Irvine Lake] Santiago Reservoir 305 Comment
  RSA0104831  Euphorbia polycarpa var. polycarpa C. Thompson 1965-2-20 s.n. Orange Cameo Shores, Corona Del Mar. Comment
  RSA795235  Eustoma exaltatum Justin M. Wood, Dustin Ray 2010-10-1 2773 Orange Santa Ana Canyon: Santa Ana River plus/minus 1 mi downstream of Gypsum Canyon Bridge, just upstream of large commercial development. Near drain outflow from Flood Control Levee on south side of channel. 110 Comment
  SEINET6186107  Euthamia occidentalis R. E. Riefner Jr. 2006-1 06 -666 Orange City of Newport Beach, urban creek draining into San Diego Creek at confluence with Newport Bay; San Diego Creek at SR-73 overpass. USGS QUAD: San Joaquin Gun Club, Tustin 6 Comment
  SBBG65406  Extriplex californica M. N. Ackley -May-1929 Orange Sunset Beach 8 Comment
  UCR194561  Festuca A. C. Sanders 2008-4-29 35133 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
  UCR193048  Festuca arundinacea A. C. Sanders, Mitch Provance 2008-5-20 35410 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago area, Santiago Creek Canyon, c. 3/4 mile below Modjeska Canyon confluence 355 Comment
  UCR207527  Festuca microstachys O. F. Clarke 2006-5-6 s.n. Orange Peninsular Range; Santa Ana Mtns., Coal Canyon 305 Comment
  UCSB47619  Festuca myuros Roberts, Fred 1980-4-3 Orange Hills; 1.0km NE Dana Hills High School; Dana Point 75 Comment
  UCR239640  Festuca pratensis Fred M. Roberts 2012-5-9 7559 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
  CAS-BOT-BC502071  Ficus microcarpa R. E. Riefner, Jr. 2013-7-11 13 -139 Orange City of Laguna Beach, Heisler Park, near Recreation Point, SW of Cliff Cr. and Myrtle St. 7 Comment
  CAS-BOT-BC502073  Ficus microcarpa R. E. Riefner, Jr. 2015-8-27 15 -366 Orange City of Newport Beach, Corona del Mar, long Marguerite Ave., near Seaview Ave. 30 Comment
  CAS-BOT-BC502094  Ficus microcarpa R. E. Riefner, Jr. 2015-8-30 15 -380 Orange City of Anaheim, Pearson Park, SE section of park, N of N. Helena St, and W. Cypress St., near jct. of N. Lemon St., and W. Cypress St. 44 Comment
  CAS-BOT-BC502097  Ficus microcarpa R. E. Riefner, Jr. 2015-8-30 15 -383 Orange City of Anaheim, Pearson Park, SE section of park, N of N. Helena St, and W. Cypress St., near jct. of N. Lemon St., and W. Cypress St. 44 Comment
  RSA0113947  Ficus microcarpa R. E. Riefner Jr. 2015-7-18 15 -198 Orange City of Costa Mesa, Anton Blvd. on ramp to 405 Freeway, ca. 0.3 mi from interesction of Bristol St at Sunflower Ave. 11 Comment
  UC2046890  Ficus microcarpa R. E. Riefner Jr. 2015-8-29 15 -368 Orange City of Rancho Santa Margarita, Trabuco Marketplace, Rancho Santa Margarita Blvd. at Plano Trabuco. Comment
  UCR192091  Filago gallica A. C. Sanders, Fred M. Roberts 2008-5-6 35257 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
  RSA761929  Filago gallica Suzanne Espino 2005-4-26 4 Orange Caspers Wilderness Park, East Ridge Trail. Near water tank 168 Comment
  LA105751  Frangula californica Reid Moran; 1975-7-18 22598 Orange Santa Ana Mountains, Near Yaeger Mine, upper Trabuco Canyon 725.0 Comment
  RSA391401  Frankenia grandifolia Joseph A. Ewan 1932-7-28 7701 Orange Corona Del Mar Comment
  PASA432  Frankenia grandifolia var. campestris Frank W. Peirson 1924-5-31 Orange Laguna Canyon 91 Comment
  PASA433  Frankenia grandifolia var. campestris Frank W. Peirson 1924-8-29 Orange 4 miles south of Santa Ana Comment
  UC1122123  Frankenia salina A. Lewis Apr 1934 390 Orange Celery Corona Quad. 0 Comment
  UC536929  Frankenia salina Lawrence M. Booth 1037 Orange Newport Bay Comment
  RSA5342  Fraxinus dipetala B. D. Stark, C. W. Tilforth 1933-1-4 4495 Orange Bottom of Claymine Canyon. No. end of Santa Ana Mts. 305 Comment
  SFV17927  Fraxinus dipetala J. N. Hogue 1999-4-9 136 .1 Orange Santa Ana Mountains Silverado Canyon. Above Pine Canyon along Maple Springs Road. 700 Comment
  RSA0041476  Fraxinus velutina var. coriacea Fred M. Roberts, Carol A. Roberts 1988-7-5 4108 Orange Santa Ana Mts: San Juan Canyon, 0.4 km SW Lower San Juan Picnic Ground. 410 Comment
  RSA659637  Fremontodendron mexicanum T. A. Daubert 1991-5-19 658 Orange Tucker Wildlife Sanctuary, Modjeska Canyon, turn around island. Comment
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Mar 12 2020
  RSA295258  Fritillaria biflora H. W. Nixon 1932-04 2437 Orange San Juan Capistrano. Comment
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Feb 20 2012
  RSA773508  Fritillaria biflora Fred M. Roberts 1999-4-26 5202 Orange Lomas de Santiago: ridge between Santiago Creek wash and Limestone Canyon, 3.8 km W Bee Peak and 1.7 km SSE Silverado School 409 Comment
  UCR192218  Fritillaria biflora A. C. Sanders, Fred M. Roberts 2008-5-6 35270 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, upper Limestone Canyon, 2.9 mi. NNW of El Toro 379 Comment
  UCR261710  Fritillaria biflora Dick Newell, Don Millar, Catherine Lovella 2015-3-17 391 Orange Peninsular Range; Santa Ana Mtns. Foothills, Baker Canyon, 0.15 mi. SE of Baker Canyon Rd. and 0.15 mi. NNE of 'top of Baker 361 Comment
  SEINET10492274  Fuchsia hybrida Charlene A. Bennett 1976-7-23 Bennett 452 Orange Cultivated plants collected in the pacific palisades estates of the laguna hills area. 152 Comment
  SEINET10837687  Fuchsia hybrida David B. Dunn 1971-8-13 Dunn 18122 Orange Cultivated plants vicinity of laguna beach. Comment
  RSA696600  Fumaria officinalis Keith E. Hoffmaster 1933-3-15 410 Orange near Santa Ana. Comment
  RSA567  Funastrum cynanchoides var. hartwegii J. T. Howell 1927-6-3 19 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  UCR281491  Funastrum cynanchoides var. hartwegii Mitch Provance 2017-6-9 617- 99 Orange Coyote Hills, North Fullerton, East side of Gilbert St., 0.5 miles ENE of intersection with Castlewood Dr. 124 Comment
  UCR132569  Gaillardia X grandiflora Robert DeRuff 2001-9-19 s.n. Orange Southern Coast, Newport Back Bay, Shellmaker Island 1 Comment
  RSA700537  Galium angustifolium Unspecified s.n. Orange Modjeska's Home. Comment
  RSA735170  Galium angustifolium A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35287 Orange Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir. 300 Comment
  SEINET156171  Galium angustifolium Norman C. Cooper 1944-6-4 1372 Orange San Juan Canyon. 305 Comment
  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
  LA208400  Galium angustifolium Carl B. Wolf; 1933-8-24 Orange Santa Ana Mountains, Santa Ana MTs. Summit of Santiago Peak 1731 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
  JEPS7862  Galium angustifolium subsp. angustifolium Lawrence M. Booth 1932-7-4 1241 Orange Newport Bay Comment
  POM201751  Galium angustifolium subsp. angustifolium L. M. Booth 1932-7-4 1241 Orange Newport Lagoon. Comment
  RSA789601  Galium angustifolium subsp. angustifolium Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49652 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak] Comment
  SD119373  Galium angustifolium subsp. angustifolium Reid Moran 1977-6-13 24232 Orange north slope, Willow Canyon, tributary of Laguna Canyon 124 Comment
  UC1143131  Galium angustifolium subsp. angustifolium A. Lewis May 1934 411 Orange Trabucco Canyon Cleveland National Forest, Elsinore Quadrangle 1219 Comment
  JEPS6601  Galium aparine Alice King April 1908 58 Orange Santa Ana River Comment
  RSA221069  Galium aparine E. W. Lathrop 1966-5-1 6261 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland Nat'l Forest, Santa Ana Mountains. 396 Comment
  UCR144152  Galium porrigens Scott D. White, Amanda Duchardt 2003-5-1 9162 Orange Santa Ana Mountains, slopes above west side of Trampas Canyon 183 Comment
  IRVC24471  Garrya flavescens var. pallida Fred M. Roberts, R. L. Allen 1986-2-23 2593 Orange Santa Ana Mountains; W of Main Divide Truck Trail; 2.1km E Los Pinos Peak. Peninsular Ranges 1115 Comment
  RSA303834  Garrya flavescens var. pallida Jim R. Shevock 1972-1-16 1334 Orange Silverado Canyon. 610 Comment
  CAS-BOT-BC282591  Gastridium phleoides F. W. Peirson 1923-9-7 4033 Orange Holy Jim trail to Santiago Peak, Santa Ana Mts. 1143 Comment
  POM266619  Gastridium phleoides J. C. Roos 1937-5-21 2284 Orange Lemon Heights Comment
  CDA5176  Gaura drummondii Johnson 1939-8-1 Orange North Whittier Heights. 0 Comment
  SBBG132272  Geranium carolinianum S. D. White, B. Leatherman 1997-5-6 5037 Orange unnamed tributary to Santiago Crk flowing from the SW, directly W of "Pancho Cyn" "Lomas de Santiago" S179 366 Comment
  UCR241091  Geranium incanum var. multifidum R. E. Riefner Jr. 2012-6-16 12- 404 Orange South Coast, City of Dana Point, Dana Point Harbor Drive at Island Way 11 Comment
  RSA732081  Gilia angelensis A. C. Sanders, Fred M. Roberts 2008-3-25 34550 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills. 259 Comment
  RSA470265  Gilia capitata subsp. abrotanifolia Anstruther Davidson s.n. Orange Corona Del Mar Comment
  UCR98132  Gilia capitata subsp. abrotanifolia George K. Helmkamp, E. A. Helmkamp 1997-4-24 1660 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
  RSA552949  Githopsis diffusa subsp. candida Fred M. Roberts 1989-4-20 4293 Orange Santa Ana Mtns.: upper Lion Canyon along San Juan Trail just south of Blue Jay Campground, 2.5km SE Los Pinos Peak. 980 Comment
  RSA587866  Githopsis diffusa subsp. candida Fred M. Roberts 1990-5-22 4634 Orange Santa Ana Mountains; Upper Hot Springs canyon, just west of Falcon Group Camp, 1.9km ESE Los Pinos Peak. 994 Comment
  UCSB48124  Glebionis coronaria Roberts, Fred 1981-4-11 Orange Highway 74: 5.2km E San Juan Capistrano, near crossing of San Juan Creek 52 Comment
  CAS-BOT-BC303650  Glebionis coronaria Helen D. Geis 1902-1-1 538 Orange Santiago Creek Comment
  RSA7326  Glycyrrhiza lepidota E. R. Johnson 1933-7-6 5169 Orange 1/2 mile south of Mexican houses, Rancho Santa Ana 122 Comment
  SEINET10849002  Gnaphalium David B. Dunn 1971-8-13 Dunn 18133 Orange Cultivated plants vicinity of Laguna Beach. Comment
  IRVC449  Gnaphalium bicolor B. Simpson 1965-5-1 Orange Silverado Canyon. Santa Ana Mountains Comment
  RSA588723  Gnaphalium californicum Fred M. Roberts 1990-5-7 4607 Orange Rancho Mission Viejo: Ridge S of Blind Canyon and E of Christianitos Canyon, TRW Lease Holding, 5.0 km NE Clemente Survey Marker 152 Comment
  RSA734849  Gnaphalium californicum A. C. Sanders, Mitch Provance 2008-5-20 35411 Orange Lomas de Santiago area, Santiago Creek Canyon, c. 3/4 mile below Modjeska Canyon confluence 345 Comment
  RSA688869  Gnaphalium californicum Fred M. Roberts 2003-5-1 5671 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, Cristianitos Cyn., 0.49km S Gato Gate and just west of Cristianitos Rd. (San Clemente) 84 Comment
  RSA688984  Gnaphalium canescens subsp. microcephalum Fred M. Roberts, David E. Bramlet 2003-4-10 5642 Orange Rancho Mission Viejo: Donna O'Neill Land conservancy, Back Road, ridge between Cristianitos Cyn, and Segunda Deshecha Canada, 1.45km WNW Gato Gate. 216 Comment
  RSA722938  Gnaphalium leucocephalum R. E. Riefner 2007-3-21 07 -157 Orange City of San Juan Capistrano, vicinity of Calle Arroyo/Paseo Esteban at San Juan Creek. Comment
  IRVC17346  Gnaphalium luteo-album Gordon A. Marsh, A. B. McGee 1980-4-11 Orange San Joaquin Freshwater Marsh along dike road; in full sun with grasses. Irvine Comment
  IRVC9358  Gnaphalium luteo-album B. Gittins 1963-3-19 57 Orange 635 Joan. Costa Mesa Comment
  UCSB52897  Gnaphalium palustre Roberts, Fred 1983-3-16 Orange Laguna Beach: Sycamore Hills, central ridge, 1.5km NNE jct. El Toro and Laguna Canyon Rds.; 5.5km ESE Signal Peak 175 Comment
  CLARK-A1528-1859  Gnaphalium peregrinum John C. Roos 1965-6-16 Orange Dana Point Comment
  RSA698230  Godetia bottae Minor Warne 1934-5-19 s.n. Orange Trabuco. Comment
  RSA0012753  Grindelia camporum Fred M. Roberts 2012-5-10 7578 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
  RSA734895  Grindelia camporum A. C. Sanders 2008-5-28 35430 Orange Lomas de Santiago, Bee Flat at mouth of Limestone Canyon 264 Comment
  UCR1483  Grindelia camporum B. L. Estes 1960-7-24 s.n. Orange San Clemente, NE corner of Avenida Santa Barbara and Ola Vista. 46 Comment
  RSA202179  Grindelia camporum var. bracteosa L. M. Booth 1932-5-24 1092 Orange Newport Bay, Public Golf Course. Comment
  CAS-BOT-BC305204  Grindelia hirsutula LeRoy Abrams 1903-4-19 3273 Orange Near the coast at Capistrano Comment
  CAS-BOT-BC305207  Grindelia hirsutula Carl B. Wolf 1932-7-2 3810 Orange Olinda. Valencia Ave., opposite Olinda Pilgrim Church 152 Comment
  JEPS41904  Grindelia hirsutula L. M. Booth 1932-5-24 1092 Orange Newport Bay Comment
  CAS-BOT-BC314525  Gutierrezia californica Helen D. Geis 1902-1-1 573 Orange Santiago Cr. Comment
  POM201690  Gutierrezia californica L. M. Booth 814 Orange Santa Ana Canyon Comment
  POM359185  Gutierrezia californica F. R. Fosberg 1931-6-21 749 Orange Lower Santiago Canyon. Comment
  RSA867  Gutierrezia californica J. T. Howell 1927-9-24 746 Orange Santa Ana Botany Garden 152 Comment
  RSA868  Gutierrezia californica J. T. Howell 1927-11-6 802 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  JEPS18975  Gutierrezia sarothrae John Thomas Howell 1927-9-24 3111 Orange Santa Ana Canyon , Rancho Santa Ana 152 Comment
  RSA581359  Hainardia cylindrica R. E. Riefner 1995-6-28 95 -256 Orange Along margins of vernal pools. Surf Beach, San Onofre State Beach. Comment
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Nov 19 2013
  RSA581660  Hainardia cylindrica Tony Bomkamp 1995-06 s.n. Orange Gabino Canyon, near confluence with Cristianitos Canyon. (San Clemente USGS 7.5' quadrangle) Comment
  UCR197707  Haplopappus menziesii A. C. Sanders, Fred M. Roberts 2008-9-18 36078 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge 330 Comment
  UCR231201  Haplopappus squarrosus A. C. Sanders, T. B. Salvato, Kent Beaman 2011-11-3 39939 Orange Peninsular Range; Santa Ana Mtns., near Pleasants Peak along the Main Divide Truck Trail 1143 Comment
  UCR157247  Haplopappus venetus Scott D. White 1992-9-29 865 Orange Vicinity of City of Brea, immediately north of Carbon Canyon Road and east of Placentia Avenue, +- 1 mi (airline) SSE of Tonner Canyon 183 Comment
  RSA0066584  Harpagonella palmeri Karlin G. Marsh, Gordon Marsh 1991-6-10 s.n. Orange Laguna Beach: Temple Hill in South Laguna, E slope above Aliso Canyon 1.5 km N Aliso Peak. 185 Comment
  RSA0066589  Harpagonella palmeri Fred M. Roberts 1988-3-15 3870 Orange Rancho Mission Viejo: Central Gabio Canyon, 7.0 km E Playa Survey Marker. 162 Comment
  RSA5276  Hazardia squarrosa var. grindelioides B. D. Stark 1932-12-15 4452 Orange Rancho Santa Ana, slope above grove #4 145 Comment
  RSA725521  Hedera helix Fred M. Roberts, Robert L. Allen 2007-9-28 6603 Orange Santa Ana Mtns.: Silverado Cyn., along Silverado Cyn. Rd. at eastern edge of town of Silverado. 347 Comment
  RSA731999  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
  RSA751327  Hedypnois cretica A. C. Sanders, Fred M. Roberts 2008-5-6 35261 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
  UCSB52872  Hedypnois cretica Roberts, Fred 1983-3-27 Orange Dana Point Headlands: north of Dana Strand Rd., 0.5km W Dana Point Harbor; 0.8km SSW Richard Henry Dana School 80 Comment
  CAS-BOT-BC306302  Hedypnois cretica Ira L. Wiggins 1966-3-31 20572 Orange Along south side of Brea Olinda Boulevard, near Carolina Avenue Comment
  IRVC14811  Helenium puberulum A. S. Boughey 1968-7-9 395 Orange Santa Ana mtns: upper Santiago Canyon. Peninsular Ranges Comment
  IRVC15334  Helenium puberulum A. S. Boughey 1968-7-9 395 Orange Santa Ana mtns: upper Santiago Canyon. Peninsular Ranges Comment
  RSA303453  Helianthemum scoparium var. scoparium Jim Shevock 1971-2-6 642 Orange Mojeska Cyn 274 Comment
  CAS-BOT-BC305443  Helianthus annuus Ira L. Wiggins 1965-10-24 20285 Orange Along Skyline Drive near intersection with Raymond Street, Fullerton Comment
  CAS-BOT-BC305446  Helianthus annuus John Thomas Howell 1927-7-27 2846 Orange Hills on n. side of Santa Ana Canon [Canyon] 152 Comment
  RSA0027431  Helianthus annuus Fred M. Roberts 2013-7-18 7665 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
  SEINET156042  Helianthus annuus Norman C. Cooper 1944-6-4 1366 Orange Elsinore Mtn. Lookout at top. 1067 Comment
  UCD132887  Helianthus annuus Ira L. Wiggins 1965-11-6 20339 Orange Kraemer Oil Estates, near well no. 14, near end of county road leading to Rancho santa Ana (extension of Orangethorpe Blvd.) Comment
  UCR80232  Helianthus ciliaris E. L. Paddock 1942-7-21 11291 Orange Toler Ranch, north side Ocean Ave., 1/4 mi west of La Mirada Rd., La Habra Comment
  CAS-BOT-BC305676  Helianthus gracilentus John Thomas Howell 1927-7-3 2638 Orange Claymine Canon [Canyon], n. Santa Ana Mts. 304 Comment
  RSA232222  Heliotropium curassavicum var. oculatum James Henrickson 1970-7-24 4994 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
  RSA233017  Heliotropium curassavicum var. oculatum Christopher Davidson, Gerald L. Benny 1971-6-15 1556 Orange Carbon Canyon, 1 mile SW of Carbon Canyon mineral spring. Comment
  CSUSB739  Heliotropium curassavicum var. oculatum Cesareo Perez 1971-5-15 Orange Huntington State Beach Pacific Coast Highway @ Brookhurst, Huntington Beach, CA. Comment
  UCD132946  Helminthotheca echioides P. B. Kennedy 1924-2-13 s.n. Orange Huntington Beach District. Comment
  RSA594889  Hemizonia australis Fred M. Roberts 1992-9-9 4847 Orange Irvine: San Joaquin Freshwater Marsh, 2.0 km NW University of California Irvine campus center 2 Comment
  UCR131869  Hemizonia fasciculata J. Mallory, V. McCoy 1995-7-3 6454- 104 Orange Santa Ana Mountains: Blind Canyon, c. 0.5 mi. east of confluence with Santiago Canyon, on a W-facing slope. north of Irvine Lake 300 Comment
  UCR158032  Hemizonia fasciculata Adrian Wolf 1998-5-15 295 Orange South Coast, Dana Point Headlands, north of Scenic Dr. 67 Comment
  UCR239888  Hemizonia fasciculata O. F. Clarke 2004-6-23 s.n. Orange South Coast, Newport Back Bay, just south of the Muth Interpretive Center 15 Comment
  RSA485309  Hemizonia fasciculata Chris Lauterbach 1971-5-9 32 Orange Carbon Canyon road, the intersection of CAlifornia 90 and 142. 76 Comment
  CAS-BOT-BC26069  Hemizonia parryi subsp. australis David D. Keck 1933-9-29 2537 Orange Seal Beach Comment
  UCR157704  Hemizonia parryi subsp. australis Adrian Wolf 1998-5-27 326 Orange South Coast, Newport Slough, south of oil fields, between Huntington Beach, Costa Mesa and Newport Beach, just south of the channelized mouth of the Santa Ana River 2 Comment
  UCR158461  Hemizonia parryi subsp. australis Adrian Wolf 1998-7-1 418 Orange South Coast, north Newport Oil Fields and East Banning Park; between Huntington Beach, Costa Mesa and Newport Beach, just south of the channelized mouth of the Santa Ana River 6 Comment
  UCR261698  Hemizonia parryi subsp. australis Dick Newell, Don Millar, Judy Booth 2015-5-27 407 Orange South Coast, Newport Beach, New Delhi Channel near University Drive 4 Comment
  SBBG56425  Hesperocyparis forbesii H. C. Jackson 1936-5-15 Orange Santa Ana Cyn Comment
  SD40680  Hesperocyparis forbesii Carl B. Wolf 1935-1-2 Orange Santa Ana Mountains, slopes of Sierra Peak, west of Claymine Canyon along road to peak 669 Comment
  UCR100450  Heteromeles arbutifolia B. G. Pitzer 1996-4-30 2781 Orange South Coast, Upper Newport Bay, Calif. Dept. Fish & Game Ecological Reserve, off (W of) Jamboree Road 6 Comment
  UCR193925  Heteromeles arbutifolia A. C. Sanders, Fred M. Roberts 2008-7-16 35840 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Dripping Springs off Limestone Canyon, c. 7.5 mi. ESE of Tustin 391 Comment
  RSA0072399  Heteromeles arbutifolia Carl B. Wolf, B. D. Stark 1932-12-19 4430 -A Orange Santa Ana Mts: 1/2 mile from Skyline Drive on firebreak road to Sierra Peak. 762 Comment
  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
  SEINET2052420 Image available Heterotheca grandiflora Cesareo Perez 1971-5-12 Orange Huntington State Beach, Pacific Coast Highway at Brookhurst, Huntington Beach. Comment
  JEPS2412  Heterotheca sessiliflora subsp. echioides L. M. Booth 1932-7-29 1330 Orange Newport Bay Comment
  POM146204  Heterotheca sessiliflora subsp. echioides F. M. Reed 1927-10-14 5502 Orange Summit of Sulfur Slide Hill, Santa Ana Canyon Comment
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May 1 2011
  POM201843  Heterotheca sessiliflora subsp. echioides L. 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
  UCD150984  Hieracium argutum D. S. Park 2010-4-25 29 Orange Whiting Ranch Wilderness Park, along trail. Open, disturbed areas. 254 Comment
  CAS-BOT-BC55402  Hirschfeldia incana Ira L. Wiggins 1966-3-22 20556 Orange Floor of Silverado Canyon about 0.5 mile below entrance to Cleveland National Forest. Comment
  UCD169748  Hoita macrostachya R. F. Thorne; E. W. Lathrop, W. Wisura 1977-7-8 49564 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74). Along San Juan Creek. 1859 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
  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
  UC1127989  Holodiscus discolor A. Lewis 1934-5-1 423 Orange Cleveland National Forest, Trabuco Canyon Trabuco Canyon; Cleveland National Forest, Trabuco Canyon 1280 Comment
  UC592773  Holodiscus discolor P. C. Everett 1935-6-18 7221 Orange Santa Ana Mountains, Summit of Santiago Peak Summit of Santiago Peak; Santa Ana Mountains, Summit of Santiago Peak 1731 Comment
  CAS-BOT-BC150009  Holodiscus discolor var. discolor C. B. Wolf; E. R. Johnson 1933-11-3 5527 Orange Santa Ana Mts., main divide motorway, slopes of Modjeska Pk. on rd. to Santiago Pk. 1524 Comment
  RSA0042733  Hordeum glaucum David Barrios 1991-5-1 10 Orange 1500 ft. Northwest of Fairmont Ave and Quail cir., Yorba Linda. 365 Comment
  RSA592062  Hordeum intercedens R. E. Riefner 1994-3-28 94 -207 Orange S bluffs area in mima terrain at San Clemete State Beach. Comment
  RSA592063  Hordeum intercedens R. E. Riefner 1996-5-19 96 -94 Orange NW of Cooks Reservoir, City of Dana Point, Dana Hills. Comment
  SD255611  Hordeum intercedens D. E. Bramlet 2001-5-15 3143 Orange Santa Ana Mountains Foothills: upper watershed of Deep Canyon, 1300ft E of Krum Reservoir, c. 2 miles SE of San Juan Capistrano, 1200 ft S of Avenida Placida, W of the Prima Desecha landfill (Dana Point 7.5'Q) 200 Comment
  UCR150375  Hordeum intercedens D. E. Bramlet 1998-5-19 2620 Orange Coastal Plains & Basins/Los Angeles Basin region, San Juan Hills: 1.13 km west of La Pata Ave. and 1.22 km N of Prima Deshecha Canada. A ridgeline 213 m east of a small canyon 152 Comment
  UCR150381  Hordeum intercedens D. E. Bramlet 1998-5-25 2627 Orange Coastal Plains & Basins/Los Angeles Basin region, 120 m N of the Newport Beach Library and 61 m west of McArthur Blvd., 914 m south of San Miguel Drive 49 Comment
  UCR160532  Hordeum marinum subsp. gussoneanum Robert DeRuff 1993-4-2 444 Orange South Coast, Newport Back Bay, Santa Ana Heights area, coastal end of 23rd Street 15 Comment
  RSA542369  Hordeum marinum subsp. gussoneanum Fred M. Roberts, Kathy Keane 1988-5-25 3988 Orange Ranch Mission Viejo: Lower Canada Chiquita, 2.5 kilometers SSE Medium Rancho Survey Mark: UTM 3710250m N, 443600m E 82 Comment
  POM202586  Hordeum murinum subsp. glaucum L. M. Booth 1932-5-12 1050 Orange Newport Bay. Comment
  RSA737485  Horkelia cuneata subsp. puberula D. E. Bramlet 2008-4-28 4250 Orange East fork of Upper Weir Cyn., on the S. side of the existing access road. The site is 1.6km east of the main cyn. and 183m west of the Upper boundary of Gypsum Cyn. 406 Comment
  CAS-BOT-BC537314  Horkelia cuneata var. puberula Philip A. Munz 1936-4-20 14606 Orange Mt. Olympus, Laguna Beach 152 Comment
  RSA699285  Hydrocotyle umbellata J. R. Bruff 1930-10 s.n. Orange Santa Ana River, 1st Street. Comment
  RSA80332  Hydrocotyle verticillata J. T. Howell 1927-7-5 2658 Orange Santa Ana River bottom, Rancho Santa Ana 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
  RSA450874  Hypericum canariense Fred M. Roberts 1984-4-29 1361 Orange Dana point Headlands: 0.5km NW Dana Point Harbor; 0.4km S Richard Henry Dana School 75 Comment
  RSA747629  Hypericum canariense Fred M. Roberts 2008-5-8 6946 Orange Dana Point: Dana Point Headlands, CNLM Preserve near NE Gate, 0.5km W Marine Institute (Dana Point Harbor). 75 Comment
  UC2061630  Hypericum canariense R. E. Riefner Jr. 2010-6-9 10 -52 Orange City of San Juan Capistrano, along McKraken View Trail at San Juan Creek Road E of I-5 Freeway. Comment
  UCD170481  Hypericum canariense R. E. Riefner 2010-6-9 10- 56 Orange City of San Juan Capistrano, La Novia Ave. at Valle Rd. 45 Comment
  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
  UCR246472  Ipomoea purpurea R. E. Riefner Jr. 2012-9-7 12-504 Orange South Coast, city of Dana Point, Dana Point Harbor Drive, vicinity of Island Way 19 Comment
  RSA562807  Iris germanica Steve Boyd, Timothy S. Ross 1992-5-20 7479 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of the wilderness area in Lucas Canyon along foot trail upstream from edge of old roadgrade to uper homestead (corugated steel building). 351 Comment
  CAS-BOT-BC315732  Isocoma menziesii B. Pitzer; T. Tennant 1997-11-8 3377 Orange Pelican Point Area, grassland area between Pacific Coast Hwy. and the bike trail, Crystal Cove State Park 30 Comment
  CAS-BOT-BC311656  Isocoma menziesii var. vernonioides David D. Keck 1932-9-30 1906 Orange Dana Point, near San Juan Capistrano Comment
  IRVC768  Isocoma menziesii var. vernonioides E. Cowper 1965-5-10 Orange [Newport] Back bay near Corona del Mar High Sch. Newport Beach Comment
  RSA731649  Isocoma menziesii var. vernonioides Fred M. Roberts 2007-10-29 6630 Orange Laguna Beach: Temple Hill, Nyes Place, ca. 0.2 km S Moulton Meadows Park. 232 Comment
  UC672256  Isocoma menziesii var. vernonioides H. L. Mason 1926-4-25 2906 Orange 5 mi s Laguna Comment
  UC892011  Isocoma menziesii var. vernonioides Carl B. Wolf 1932-6-28 3807 Orange on Bixby Ave; Bryant Ranch 91 Comment
  UCSB48038  Isocoma menziesii var. vernonioides Roberts, Jr., Fred 1981-9-26 Orange Irvine Ranch; Pacific Coast Highway, 0.9 km. SE El Moro School near mouth of Moro Cyn. 15 Comment
  CLARK-A1528-2387  Isomeris arborea John C. Roos 1937-2-23 1314 Orange Laguna Hills Comment
  RSA658217  Isomeris arborea T. A. Daubert 1991-5-26 664 Orange Tucker Wildlife Sanctuary, Modjeska Canyon, fire road. Comment
  RSA696236  Isomeris arborea Olive Bernice Spears 1932-5-5 s.n. Orange Corona del Mar Comment
  UCR96319  Isomeris arborea B. G. Pitzer 1996-4-30 2796 Orange San Joaquin Hills, Crystal Cove State Park, south of City of Irvine on State Hwy 1 (Pacific Coast Hwy) 15 Comment
  UCR220031  Iva hayesiana Rebecca T. Vo 2010-6-5 s.n. Orange South Coast, Huntington Beach, Santa Ana River Bike path on west side of the mouth of the Santa Ana River, near Orange County Sanitation Treatment Plant, north of Pacific Coast Hwy and east of Brookhurst St. 1 Comment
  SBBG65763  Jaumea carnosa M. N. Ackley -Sep-1928 1198 Orange Sunset Beach 8 Comment
  UCR239831  Jaumea carnosa O. F. Clarke 2004-6-23 s.n. Orange South Coast, Newport Back Bay, just south of the Muth Interpretive Center 15 Comment
  RSA0059091  Jaumea carnosa Louis C. Wheeler 1932-6-22 846 Orange Newport Bay. 0 Comment
  POM11677  Jepsonia parryi P. A. Munz, I. M. Johnston 1922-5-18 5314 Orange Santa Ana River Canyon, 3 miles south of Orange Co. line., side canyon. 457 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
  UCR229283  Juglans californica R. E. Riefner Jr. 2011-8-25 11- 112 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
  RSA0011063  Juglans californica M. B. Dunkle 1933-5-30 3569 -A Orange Carbon Canyon Comment
  SD7922  Juglans californica var. californica George R. Kleeberger 1878-12-1 Orange Santa Ana Valley Comment
  SD253479  Juglans hindsii R. E. Riefner Jr. 2013-11-6 13 234 Orange City of Laguna Beach, Laguna Canyon, N of Phillips St on E side of Laguna Canyon Rd. 71 Comment
  UCD169190  Juglans hindsii R. E. Riefner Jr. 2011-9-10 11- 124 Orange Santa Ana Canyon, I-91 northbound, S side of freeway, located within 100 ft of the Riverside County line. 127 Comment
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May 26 2020
  UCR229284  Juglans hindsii R. E. Riefner Jr. 2011-8-25 11- 114 Orange Trabuco Canyon, Trabuco Canyon Road c. 1 mi northwest of O'Neill Regional Park 319 Comment
  RSA22739  Juglans regia Carl B. Wolf 1939-11-29 9545 Orange Orange County Picnic Grounds, Comment
  UCR216056  Juglans regia R. E. Riefner Jr. 2009-7-18 09- 149 Orange Trabuco Canyon, Trabuco Canyon Rd. c. 1.25 mi. NW of O'Neil Regional Park 332 Comment
  UCR61558  Juncus Jeri Hirshberg 1988-7-13 s.n. Orange Santa Ana Mtns., Lower Blind Canyon, 1-2 mi above Santiago Reservoir Comment
  RSA795706  Juncus W. R. Ferren 1991-12-4 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
  UCR217670  Juncus arcticus var. balticus Fred M. Roberts, R. E. Riefner Jr. 2008-5-30 7021 Orange South Coast, Lomas de Santiago, Loma Ridge, Hanging Man's Tree Canyon, along Hanging Man's Tree Canyon Road, c. 0.4 km west of Santiago Canyon Road and 1.23 km north of Bolero Lookout 372 Comment
  RSA552947  Juncus balticus Fred M. Roberts, R. E. Riefner 1989-5-2 4328 Orange Aliso-Wood Canyons Regional Park: Lower Wood Canyon, 3.5 kilometers SSE Multon Peak. 30 Comment
  POM201724  Juncus bufonius L. M. Booth 1934-5-24 1088 Orange Newport Bay. Comment
  UCR130133  Juncus bufonius Alice Eastwood, J. T. Howell 1937-4-24 3933 Orange South Coast, Dana Point 38 Comment
  RSA754062  Juncus macrophyllus A. C. Sanders, Fred M. Roberts 2008-7-16 35859 Orange Lomas de Santiago, upper Hangmans Tree Canyon 395 Comment
  UCD169360  Juncus macrophyllus A. C. Sanders; Fred M. Roberts, Michelle Balk 2006-7-20 33045 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. 366 Comment
  POM201838  Juncus mexicanus L. M. Booth 1932-12-26 1381 Orange Bolsas Marsh near coast highway. Comment
  RSA754063  Juncus patens A. C. Sanders, Fred M. Roberts 2008-7-16 35856 Orange Lomas de Santiago, upper Hangmans Tree Canyon 395 Comment
  UCR138438  Juncus rugulosus R. E. Riefner Jr. 2000-3-26 20 151 Orange Peninsular Range, Santa Ana Mountains: North Ranch Policy Plan Area, Fremont Canyon, north of major stream fork along west channel drainage 335 Comment
  RSA754064  Juncus textilis A. C. Sanders, Fred M. Roberts 2008-7-16 35855 Orange Lomas de Santiago, upper Hangmans Tree Canyon 395 Comment
  SEINET3881136  Juncus textilis A. C. Sanders, Fred M. Roberts 2008-7-16 35855 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago, upper Hangmans Tree Canyon (El Toro 7.5').; 0 395 Comment
  RSA542335  Juncus xiphioides Fred M. Roberts, K. Keane 1988-5-25 3985 Orange Ranch Mission Viejo: Lower Canada Chiquita, 2.5 kilometers SSE Medium Rancho Survey Mark. 82 Comment
  UCR144744  Juniperus californica Karlin G. Marsh 1980-1 s.n. Orange Rancho Mission Viejo, about 1 mile east [south] of San Juan Creek in tributary drainage east of intersection of Prima Deschecha Dump Rd. and Ortega Hwy [dump is at 32250 La Pata Ave., San Juan Capistrano] 152 Comment
  UCR162050  Juniperus deppeana var. pachyphlaea Robert DeRuff 2001-1 528 Orange Southern Coast, Newport Beach, Upper Newport Back Bay, near the UCI rowing center at Shellmaker Island 3 Comment
  RSA0038511  Juniperus rigida var. conferta R. E. Riefner Jr. 2011-7-1 11 -81 Orange city of Newport Beach, beach area between Shorecliff Road and Cameo Shores Road 2 Comment
  UCR246394  Juniperus rigida var. conferta R. E. Riefner Jr. 2012-10-21 12- 521 Orange South Coast, city of Newport Beach, Corona del Mar, c. 0.5 mi south from the intersection of Poppy Ave./Ocean Blvd. at Little Corona Beach 12 Comment
  POM6386  Keckiella antirrhinoides Philip A. Munz, Street, Williams 1919-5-3 2621 Orange Santa Ana River Canyon. Comment
  RSA659545  Keckiella antirrhinoides P. Shirokawa 1998-5-7 17 Orange Cleveland National Forest- Trabuco Ranger District, 0.35 miles from Ortega Highway (State Highway 74) on North Main Divide Road 823 Comment
  SBBG66451  Keckiella antirrhinoides subsp. antirrhinoides M. N. Ackley -May-1925 1081 Orange Silverado Cyn Comment
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May 21 2011
  RSA0051385  Keckiella antirrhinoides subsp. antirrhinoides Robert F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49601 Orange Santa Ana Mountains: rocky ravine tributary to San Juan Canyon, along Ortega Highway (74) about 2 miles above San Juan Fire Station. Comment
  NY786524  Keckiella antirrhinoides var. antirrhinoides D. C. Michener 1980-6-5 3668 Orange Santa Ana Mountains. San Juan river valley, on terrace near abandoned mine(s). Comment
  NY786705  Keckiella antirrhinoides var. antirrhinoides S. McCoy 1932-6-3 233 Orange Near Brea Comment
  SD245484  Keckiella antirrhinoides var. antirrhinoides Robert Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49601 Orange Santa Ana Mountains: rocky ravine tributary to San Juan Canyon, along Ortega Highway (74) about 2 miles above San Juan Fire Station. Comment
  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
  UC729869  Keckiella cordifolia Carl B. Wolf 1932-7-2 Orange .12 mi below La Vida Springs; Carbon Canyon 213 Comment
  RSA542498  Keckiella ternata subsp. ternata Fred M. Roberts Jr., Richard E. Riefner 1988-7-19 4123 Orange Costa Mesa; Fairview Park, Just west of end of Canyon Drive, 0.1 km W Canyon School. 24 Comment
  RSA7393  Keckiella ternata subsp. ternata Carl B. Wolf 1933-8-24 5405 Orange Summit of Santiago Peak, Santa Ana Mountains. 1732 Comment
  RSA184190  Kochia scoparia I. L. Wiggins 1966-5-4 20656 Orange Along railroad embankment of A.T. & S.F. R.R., on SW side of Orangethorpe avenue, near Esperanza siding. Comment
  POM7129  Koeleria macrantha P. A. Munz, L. T. Street 1919-5-3 2622 Orange Santa Ana River Canyon. Comment
  RSA539358  Koeleria macrantha Fred M. Roberts, Carol A. Roberts 1988-6-9 4081 Orange Santa Ana Mountains: Modjeska Peak, 0.9km SW summit., 3730500mN, 449000mE 1542 Comment
  RSA679227  Koeleria macrantha Fred M. Roberts 2003-6-25 5943 Orange Santiago peak, north slopes along ridge east of Main Divide truck trail, 0.6km NNW summit. 1605 Comment
  RSA0027432  Lactuca serriola Fred M. Roberts 2013-7-18 7666 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
  CAS-BOT-BC340501  Lactuca serriola John Thomas Howell 1927-7-27 2855 Orange Hills on n. side of Santa Ana Canon [Canyon] 152 Comment
  RSA761938  Lagophylla ramosissima subsp. ramosissima Robt Allen, Linnell Allen, Charles Allen 2005-10-9 12530 Orange Los Pinos Potrero, opposite entrance to Falcon Group Camp. 1011 Comment
  RSA56  Lamarckia aurea J. T. Howell 1928-2-26 855 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  CDA23089  Lampranthus aurantiacus Mark A. Elvin, D. G. Kelch 2006-12-9 5303 Orange Southern Coastal; Newport Backbay; Big Canyon, lower end. Comment
  CAS-BOT-BC338904  Lasthenia californica Carl B. Wolf 1932-3-8 2677 Orange 1/2 mi. No. of Corona Del Mar. Borders of Newport Bay 7 Comment
  CAS-BOT-BC338907  Lasthenia californica Frank W. Peirson 1925-4-11 5746 Orange 5 miles south of Laguna Beach Comment
  IRVC532  Lasthenia coronaria R. Harbour 1965-4-4 Orange Irvine Coast Country Club. Crystal Cove State Park Comment
  CAS-BOT-BC329171  Lasthenia glabrata subsp. coulteri E. R. Johnson 1931-4-7 1937 Orange East end camp, Bryant Ranch, Los Alamitos 9 Comment
  RSA0008491  Lasthenia glabrata subsp. coulteri D. E. Bramlet 2008-4-14 4175 Orange Upper Weir Cyn., NE Trib., 596m NE of Rd Junction, and 47m E of the wash 282 Comment
  SD27972  Lasthenia glabrata subsp. coulteri Carl B. Wolf 1932-3-8 2691 Orange Sunset Beach, near southern limits of City. Comment
  RSA0024932  Lasthenia glabrata subsp. glabrata R. E. Riefner Jr. 2013-3-10 13 -39 Orange City of Lake Forest, along El Toro Rd. at Destry Rd. 211 Comment
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Apr 7 2021
  JEPS10157  Lasthenia gracilis Alice King 1908-1-1 Orange near Santa Ana; Anaheim plains Comment
  UC484260  Lasthenia gracilis C. B. Wolf 1931-3-6 1847 Orange 1 mi above Trabuco Oaks Trabuco Canyon; Santa Ana Mts. 518 Comment
  HSC14711  Lathyrus vestitus subsp. alefeldii S. M. Clapp 1966-4-10 27 Orange 3 mi. into Black Star Canyon 152 Comment
  POM50628  Lathyrus vestitus subsp. alefeldii L. R. Abrams 1901-06 1813 Orange Trabuco Canyon Comment
  RSA1702  Lathyrus vestitus subsp. alefeldii C. B. Wolf 1931-3-6 1835 Orange Trabuco canyon, 1/2 mile above Trabuco Oaks, west slope of Santa Ana Mountains. 457 Comment
  RSA90347  Lathyrus vestitus subsp. alefeldii F. W. Peirson 1925-4-11 5731 Orange slope above mill, in Silverado Canyon, Santa Ana Mountains 914 Comment
  IRVC2207  Lathyrus vestitus subsp. laetiflorus B. Mawdsley 1965-5-2 Orange Cleveland National Forest; Silverado [Canyon]. Santa Ana Mountains Comment
  RSA518451  Lathyrus vestitus subsp. laetiflorus Dorothy Tilforth, C. W. Tilforth 1977-3-6 1253 Orange Small canyon W of Gypsum Canyon, S side of Santa Ana River 152 Comment
  UC1595602  Lathyrus vestitus var. alefeldii Fred M. Roberts Jr. and Carol A. Roberts 1989-4-7 4265 Orange Aliso-Wood Canyon Regional Park: Upper Wood Canyon, ca 0.5 km SW Moulton Peak. 102 Comment
  UCR141338  Laurus nobilis Robert DeRuff 1990-3-31 391 Orange Southern Coast, Newport Beach, Newport Back Bay, East Bluff 9 Comment
  RSA697123  Layia platyglossa Minor Warne 1934-4-21 s.n. Orange Santiago Canyon. Comment
  UCR230224  Layia platyglossa Dick Newell, Ed Hill 2011-3-29 097 Orange Peninsular Range; Santa Ana Mtns., east of Outdoor Education Center on MWD service road, 1.65 mi. NW (311 deg. ) of Irvine Lake dam 237 Comment
  IRVC18939  Layia platyglossa T. L. Ackerman 1982-4-24 82 -260 Orange S of Live Oak Canyon Rd., on dirt trail from road to Methodist Church; disturbed chaparral; Santa Ana Mountains Comment
  IRVC29729  Lemna Mark A. Elvin, Barry S. Nerhus 2006-11-4 5243 Orange Huntington Beach; 1.5 km SW of Wintersburg, SW of jct Slater and Goldenwest; Shipley Nature Center. Southern Coastal 1 Comment
  RSA723966  Lemna gibba R. E. Riefner 2005-10-27 05 -730 Orange City of Huntington Beach, Huntington Central Park near Goldenwest St. 1 Comment
  UCR171395  Lemna minuta R. E. Riefner Jr. 2005-10-27 05 303 Orange City of Irvine; along Jeffrey Rd. N of Barranca Rd. near Irvine Valley College 47 Comment
  SD236317  Leonurus sibiricus O. F. Clarke, A. C. Sanders 2008-2-19 Orange South Coast: Fullerton; weeds at Calif. St. Univ. Fullerton Arboretum 79 Comment
  CAS-BOT-BC221603  Lepechinia cardiophylla John Thomas Howell 1927-6-26 2606 Orange Claymine Canyon, northern Santa Ana Mts. 609 Comment
  IRVC24954  Lepechinia cardiophylla Fred M. Roberts, Gordon A. Marsh 1986-6-6 2933 Orange Santa Ana Mountains; ridge S of Mabey Canyon, just N of Skyline Dr. near Orange County line; 2.7km SE Sierra Peak. Peninsular Ranges 820 Comment
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Feb 22 2017
  UC1608281  Lepechinia cardiophylla Steve Boyd and Kyle Boyd 1992-7-9 7653 Orange along main crest of range n Pleasants Peak (s of Oak Flat (aka Oat Flat), 3.5 mi s of junction of Main Divide and Skyline Rds.); Northern Santa Ana Mountains Comment
  UCD115328  Lepidium appelianum Ethelbert Johnson 1931-5-1 2197 Orange Santa Ana. Comment
  UC1719509  Lepidium densiflorum D. Atwood 1993-3-27 17692 Orange Corona del Mar State Park along Newport Coast Drive 0 Comment
  RSA697417  Lepidium didymum J. R. Bruff 1927-3-22 2 -P Orange Near Newport. Comment
  IRVC1094  Lepidium lasiocarpum L. Burns 1965-4-4 Orange Trabuco Canyon. Santa Ana Mountains Comment
  RSA743495  Lepidium lasiocarpum Fred M. Roberts 2008-3-19 6783 Orange Dana Point: Dana Point Headlands, CNLM Preserve, 0.8km W Marine Institute, Dana Point Harbor. 45 Comment
  UCR261701  Lepidium lasiocarpum Dick Newell, Judy Booth 2014-5-28 378 Orange South Coast, Newport Beach and Back Bay, edge of parking lot above Muth Interpretive Center 17 Comment
  RSA5805  Lepidium lasiocarpum C. B. Wolf 1932-6-28 3777 Orange Extreme SW corner of Bryant Ranch. 9 Comment
  CAS-BOT-BC12520  Lepidium nitidum Carl B. Wolf 1932-2-15 2657 Orange Rancho Santa Ana Botanic Garden, above the Rubus beds. 182 Comment
  IRVC25562  Lepidium nitidum Fred M. Roberts 1989-3-17 4209 Orange Aliso Canyon, 3.3km SSE Moulton Pk. Aliso-Wood Canyon Regional Park 30 Comment
  UCR107855  Lepidium nitidum Scott D. White, B. Leatherman 1998-1-26 6066 Orange Irvine, Univ. of Calif. Irvine Campus: Site of proposed Research Park. SW of main campus circle, c. halfway between Berkeley Avenue and new freeway (Bonita Cyn.) 37 Comment
  UC537122  Lepidium virginicum Lawrence M. Booth 1932-5-24 1098 Orange Newport Lagoon Comment
  UCR4054  Lepidium virginicum Carole Sims 1965-3-25 s.n. Orange Santa Ana River Canyon, hillside at 24000 Santa Ana Canyon Road (= State Hwy 91), 150 yards north of hwy; also called Gypsum Canyon. West side of gravel company's trucking road. 221 Comment
  CAS-BOT-BC60084  Lepidium virginicum var. menziesii Helen D. Geis 1902-1-1 531 Orange Santiago Creek. Comment
  IRVC24787  Lepidium virginicum var. robinsonii Karlin G. Marsh 1989-3-4 Orange Lomas Ridge, ridge between Hicks and Rattlesnake Canyons. Lomas de Santiago 210 Comment
  OBI77796  Lepidospartum squamatum J. & B. Sample, B. Sample 1991-8-12 5591 Orange E of San Juan Capistrano on hwy 74 610 Comment
  POM202734  Leptochloa fusca subsp. uninervia L. M. Booth 1932-7-18 1262 Orange Costa Mesa, Newport Bay Comment
  RSA712939  Leptochloa fusca subsp. uninervia Fred M. Roberts 2005-10-3 6304 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
  JEPS73757  Leptochloa uninervia Lawrence M. Booth 1932-7-18 1262 Orange Newport Bay, Costa Mesa Comment
  UCR154263  Leptochloa uninervia Mark A. Elvin 2004-5-2 3420 Orange Southern Coastal, Irvine: San Joaquin Freshwater Marsh, near Campus and University Drives; 1.7 km (air) NNW UC Irvine campus center 3 Comment
  UCR17334  Leptodactylon californicum Andrew Alexis 1978-4-29 s.n. Orange Santa Ana Mtns, mouth of Modjeska Canyon. Comment
  RSA574  Leptosiphon androsaceus J. T. Howell 1928-4-7 905 Orange Botany Garden, Rancho Santa Ana. [original location] Comment
  POM3492  Leptosiphon androsaceus Crawford s.n. Orange Laguna Mts. 305 Comment
  CAS-BOT-BC402204  Leptosiphon floribundus subsp. floribundus R. F. Thorne; C. W. Tilforth; E. W. Lathrop 1977-4-27 49714 Orange Santa Ana Mountains: Bedford Truck Trail, ca. 0.8 km below junction with Main Divide Truck Trail Comment
  RSA0095146  Leptosiphon floribundus subsp. floribundus Valerie L. Soza, LeRoy Gross 1999-6-7 481 Orange West side of Modjeska Peak, along Main Divide Road. 1448 Comment
  CAS-BOT-BC227045  Leptosiphon floribundus subsp. glaber E. R. Johnson 1932-5-1 3703 Orange Santa Ana Mts., along ridge, between Skyline Drive and Santiago Peak 1219 Comment
  POM10433  Leptosiphon floribundus subsp. glaber H. M. Hall s.n. Orange Santa Rosa Mts. Comment
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Mar 3 2013
  UCSB47633  Leptosiphon floribundus subsp. glaber Roberts, Fred 1980-5-3 Orange Main Divide Truck Trail, 0.6 km. southeast Trabuco Peak on east side of road, Santa Ana Mtns. 1259 Comment
  UCR186586  Lessingia filaginifolia Robert DeRuff 1995-1 s.n. Orange Southern Coast, Newport Beach, Newport Back Bay, Eastbluff bench 12 Comment
  CAS-BOT-BC283709  Leymus condensatus L. R. Abrams 1901-6-1 s.n. Orange San Joaquin Hills Comment
  RSA51  Leymus condensatus E. R. Johnson 1927-6-10 77 Orange Rancho Santa Ana. Alt 500 ft. 152 Comment
  RSA108341  Leymus triticoides Frank W. Gould 1943-4-12 2101 Orange About 7 miles northeast of Anaheim, on sand railroad siding. Comment
  RSA0023265  Leymus triticoides R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49775 Orange Santa Ana Mountains: Trabuco Canyon Comment
  RSA698086  Lilium humboldtii J. Vlahos 1934-03 s.n. Orange Black Star Canyon. Comment
  UCR231348  Lilium humboldtii A. C. Sanders, Kent Beaman 2011-9-27 39901 Orange Peninsular Range; Santa Ana Mtns., Maple Springs Truck Trail above Silverado, at major (dry) stream crossing, 3.95 km NNW (347 deg. ) of Santiago Peak 903 Comment
  RSA124  Lilium humboldtii subsp. ocellatum J. T. Howell 1927-7-3 262 Orange Claymine Canyon near Sierra Peak. 305 Comment
  RSA401667A  Limonium californicum F. R. Fosberg 1931-8-19 7284 Orange Newport Bay. 0 Comment
  UC1088564  Limonium californicum Peter H. Raven 1958-7-5 13560 Orange salt marsh just n Surfside Comment
  UCR149414  Limonium duriusculum Fred M. Roberts 2000-6-5 5338 Orange Chino Hills, Yorba Linda, along Hidden Hills Dr. near Sunbeam Lane, on ridge above Box Canyon 376 Comment
  SFV20426  Limonium perezii A. Le 2002-4-5 16 Orange Newport Beach. Near residential area near beach. Comment
  RSA671248  Limonium ramosissimum R. E. Riefner 2002-5-4 20 -92 Orange Upper Newport Bay, Jamboree Rd at Bayview Dr. 15 Comment
  RSA716344  Limonium ramosissimum R. E. Riefner 2006-8-11 6 -386 Orange Upper Newport Bay, E of Back Bay - Bayside Dr. flats along Big Canyon Creek. 5 Comment
  RSA723548  Limonium ramosissimum R. E. Riefner 2006-8-13 6 -391 Orange Upper Newport Bay at Jamboree Rd. 9 Comment
  RSA731656  Limonium ramosissimum Fred M. Roberts 2007-10-29 6623 Orange Niguel Hill: Laguna Niguel, Seaview Park, 1.3 km ENE Aliso Peak. 265 Comment
  UCR129919  Limonium ramosissimum R. E. Riefner Jr. 2002-5-2 20- 92 Orange Upper Newport Bay, Jamboree Rd. at Bayview Dr., edge of Newport Beach Q. 21 Comment
  UCR188997  Limonium ramosissimum Fred M. Roberts 2007-10-29 6623 Orange South Coast, Niguel Hill, Laguna Niguel. Seaview Park, 1.3 km ENE of Aliso Peak 265 Comment
  LA103892  Linanthus californicus E. B. Higgins; 1948-3-21 sn Orange San Juan Camp Comment
  UCR191428  Linanthus dianthiflorus A. C. Sanders, Fred M. Roberts 2008-4-8 34778 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
  UCR191778  Linanthus dianthiflorus A. C. Sanders, Fred M. Roberts 2008-3-25 34570 Orange Peninsular Range; Santa Ana Mtns., saddle on ridge near head of Weir Canyon, 5.3 miles ENE of Villa Park, 3.1 mi. N of (Santiago Reservoir) Irvine Lake 405 Comment
  POM364568  Linanthus dianthiflorus subsp. dianthiflorus Jean Carnine 1932-3-6 15307 Orange Trabuco Canyon. Comment
  UCR266676  Linanthus liniflorus D. E. Bramlet 2008-5-20 4278 Orange Peninsular Range; Santa Ana Mtns. Foothills, northern Loma Ridge, 305 m west of Hwy 241, 975 m south of Santiago Canyon Rd., 61 m north of access road 355 Comment
  RSA698401  Linanthus parviflorus Dorothy Sammis s.n. Orange Trabuco Canyon. Comment
  RSA700539  Linaria canadensis var. texana Frances Battey s.n. Orange Orange Co. Park. 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
  CDA41685  Lindernia dubia var. anagallidea Wes Humphrey 1973-7-19 s.n. Orange 7231 Irvine Blvd., Santa Ana (Tustin). 0 Comment
  UCR51660  Linum lewisii R. Ascanio 1988-5-25 s.n. Orange Hwy 74 c. 5 mi east of San Juan Capistrano Comment
  RSA735257  Lithophragma affine Wilma Griset 1931-3-15 31 Orange Eagle Rock Comment
  IRVC16249  Lobelia dunnii var. serrata Karlin G. Marsh 1977-9-23 Orange Holy Jim Canyon, Holy Jim Falls. Santa Ana Mountains Comment
  RSA731945  Lobularia maritima Fred M. Roberts, Sandy Leatherman 2007-11-27 6690 Orange Yorba Linda: drainage channel on east side of Amberdale Dr. ca. 0.3 km S Fairmont Blvd. 118 Comment
  RSA662131  Lobularia maritima Daniel Curran 1981-1-23 5 Orange 2733 Boadway, Anaheim. Comment
  JEPS33564  Logfia filaginoides Alice King 1908-4-1 Orange Santiago Creek (This was the only locality given and it is assumed that it is the creek of the name in Orange County--L. Heckard, 1964) Santiago Creek Comment
  RSA0073645  Logfia filaginoides Fred M. Roberts, Lee Ann Caranza, Eliza Maher 2009-4-7 7146 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
  UCR267216  Logfia filaginoides Fred M. Roberts, Lee Ann Caranza & Eliza Maher 2009-4-7 7146 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
  UCD66217  Lolium multiflorum A. A. Beetle 1942-4-19 3104 Orange Rt. 101. San Clemente. Comment
  RSA0011625  Lolium perenne subsp. multiflorum Rankin s.n. Orange Santa Ana. Comment
  RSA650633  Lolium perenne var. multiflorum Daniel Truong 1991-5-5 3 Orange Irvine Regional Park, left field adjacent to main entrance, within 1/4 mile radius of ''closed area''. Comment
  UCR86995  Lomatium dasycarpum B. G. Pitzer, Stu Hemstreet 1992-5-27 1956 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
  RSA1492  Lomatium dasycarpum subsp. dasycarpum E. R. Johnson 1929-4-11 1255 Orange Sierra Peak Trail. Comment
  IRVC21254  Lomatium lucidum Fred M. Roberts 1982-7-7 735 Orange Niguel Hill, 1.6km SE Aliso Peak; 0.7km E BM 133, South Laguna 231 Comment
  UCR228771  Lonicera subspicata Dick Newell, Don Millar 2011-7-19 212 Orange Peninsular Range; Santa Ana Mtns., foothills above Black Star Canyon Rd. (SCE access road), 3.15 mi. ENE (83 deg. ) of Irvine Lake dam 494 Comment
  RSA542544  Lotus hamatus Fred M. Roberts 1988-4-10 3914 Orange Lomas De Santiago: Loma Ridge, 1.0 kilometer N Bolero Lookout. 415 Comment
  RSA0006681  Lotus hamatus J. T. Howell 1927-6-8 56 Orange Botany Garden, Rancho Santa Ana. [original location] 152 Comment
  POM50652  Lotus heermannii L. R. Abrams 1901-06 1812 Orange Santiago Peak Trail 915 Comment
  RSA2591  Lotus heermannii J. T. Howell 1928-7-10 1092 Orange Trabucco Canyon, Santa Ana Mts. 518 Comment
  RSA392  Lotus heermannii J. T. Howell 1928-7-6 1029 -B Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  IRVC15129  Lotus heermannii var. heermannii A. S. Boughey 1968-7-9 383 Orange Santa Ana mtns: upper Santiago Canyon. Peninsular Ranges Comment
  POM50645  Lotus micranthus L. R. Abrams 1901-06 1825 Orange Santiago Peak Trail 915 Comment
  CLARK-A1528-2802  Lotus purshianus John C. Roos 1965-6-16 Orange Dana Point Comment
  RSA662072  Lotus purshianus J. C. Roos 1965-6-16 s.n. Orange Dana Point near Doheney Beach. Comment
  RSA754059  Lotus purshianus A. C. Sanders, Fred M. Roberts 2008-7-16 35854 Orange Lomas de Santiago, upper Hangmans Tree Canyon. 395 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
  UCR191348  Lotus salsuginosus A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34631 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 290 Comment
  IRVC19937  Lotus salsuginosus subsp. salsuginosus Gordon A. Marsh, K. G. Marsh 1983-3-2 Orange burn area on ridge between Coal and Gypsum Canyons, Santa Ana Mountains Comment
  IRVC11705  Lotus salsuginosus subsp. salsuginosus R. Yarnell 1966-3-16 62 Orange near Orange County Refuse Dump [Olinda Landfill?]. unspecified locations Comment
  JEPS55886  Lotus scoparius Alice King May 1902 Orange Newport Comment
  RSA5274  Lotus scoparius B. D. Stark 1933-1-17 4518 Orange Dana Point. 15 Comment
  RSA614343  Lotus scoparius B. Pitzer 1996-4-30 2802 Orange San Joaquin Hills Crystal Cove State Park, south of City of Irvine on State Hwy 1 (Pacific Coast Hwy). 15 Comment
  UC729695  Lotus scoparius Carl B. Wolf 1932-3-8 Orange 0.5 mi n Corona del Mar (borders of Newport Bay); Newport Bay 7 Comment
  HSC98231  Lotus strigosus S. M. Clapp 1966-4-3 5 Orange Union Oil Prop., just S of Imperial Hwy. and E of Associated Rd. 61 Comment
  RSA390  Lotus strigosus J. T. Howell 1928-4-7 899 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  RSA406320  Lotus strigosus M. B. Dunkle 1933-4-7 3277 Orange Dana Point Comment
  RSA734761  Lotus strigosus A. C. Sanders, T. B. Salvato 2008-5-13 35341 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
  UC864909  Lotus strigosus I. W. Clokey 1932-3-1 5328 Orange Laguna Beach Comment
  UCR191332  Lotus strigosus A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34615 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
  IRVC17284  Lotus strigosus var. strigosus Karlin G. Marsh 1980-5-5 Orange Rancho Mission Viejo: Planning area; along road way. Southern Coastal Comment
  RSA649845  Lotus wrangelianus D. E. Bramlet 2000-4-17 2985 Orange West of Blind Cyn. and North of Irvine Park. The site is 2 km west of Blind Canyon and 305m north of Irvine Park. This locality is 183m southwest of the MWD access road. 220 Comment
  RSA48859  Ludwigia peploides subsp. peploides J. C. Roos 1949-10-1 4685 Orange Doheney Beach. [Now Capistrano Beach] 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
  CAS-BOT-BC196229  Lupinus albifrons var. eminens Marcus E. Jones 1926-4-28 s.n. Orange Gaviota Canon [Canyon] Comment
  UCR101530  Lupinus bicolor B. G. Pitzer 1997-4-15 3147 Orange San Joaquin Hills, Crystal Cove State Park, north of the N end of the City of Laguna Beach. Along Moro Canyon Trail, from beginning to a point c. 1.75 mi. up the canyon. 49 Comment
  UCR193295  Lupinus bicolor A. C. Sanders, T. B. Salvato 2008-5-13 35340 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
  SEINET6932637 Image available Lupinus bicolor W. P. Vestal, A. G. Vestal 1955-3-24 3456 Orange Trabuco Canyon, ca. 5 miles eat of El Toro. Comment
  IRVC22067  Lupinus bicolor subsp. microphyllus Fred M. Roberts 1983-3-16 917 Orange Laguna Beach: Sycamore Hills, central ridge, 1.1km NNE jct. El Toro and Laguna Canyon Rds.; 5.4km [ESE] Signal Peak. Southern Coastal 156 Comment
  RSA184093  Lupinus bicolor subsp. umbellatus I. L. Wiggins 1966-3-22 20546 Orange Silverado Canyon about 5 miles above Ranger Station, Cleveland National Forest. Comment
  RSA542581  Lupinus bicolor subsp. umbellatus Fred M. Roberts 1988-4-10 3904 Orange Lomas De Santiago: Loma Ridge, Upper Limestone Canyon, c.a. 3.2 kilometer NNW Bolero Lookout. 347 Comment
  CAS-BOT-BC216675  Lupinus excubitus subsp. hallii Carl B. Wolf 1932-5-27 2952 Orange 0.75 miles W of Atwood, Just S of Santa Fe RR 91 Comment
  RSA3253  Lupinus excubitus var. hallii B. D. Stark 1931-4-18 1939 Orange mouth of Gypsum Canyon, Santa Ana Mts. Comment
  RSA503878  Lupinus excubitus var. hallii N. C. Cooper 1949-5-1 3942 Orange San Juan Canyon 610 Comment
  RSA6197  Lupinus excubitus var. hallii Carl B. Wolf 1932-5-27 3698 Orange Santa Fe R R, 3/4 mile West of Orange County. 91 Comment
  IRVC2326  Lupinus hirsutissimus Kathy Durica 1965-4-25 s.n. Orange Silverado Canyon Santa Ana Mountains Comment
  RSA797239  Lupinus longifolius Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49801 Orange Santa Ana Mountains: Trabuco Canyon Comment
  UCR177285  Lupinus microcarpus Scott D. White, Amanda Duchardt 2003-5-1 9152 Orange Santa Ana Mountains, Slopes above the west side of Canada Gobernadora and adjacent small canyon to the west 122 Comment
  UC1595603  Lupinus microcarpus var. microcarpus Fred M. Roberts Jr. and Carol A. Roberts 1989-4-7 4262 Orange 0.6 km nw Moulton Peak; Aliso-Wood Canyon Regional Park, Upper Wood Canyon 131 Comment
  POM276293  Lupinus nanus subsp. menkerae Lyman D. Benson 1933-3-13 3089 a Orange caliente Wash, Greenhorn Range, Caliente Creek Watershed. 244 Comment
  IRVC8673  Lupinus sparsiflorus Charles W. Sexton 1965-3-27 s.n. Orange Ortega Highway out of San Juan Capistrano Southern Coastal Comment
  UCR97724  Lupinus sparsiflorus Scott D. White 1997-2-19 4701 Orange Santa Ana Mtns, above Modjeska Canyon; proposed water tank site 488 Comment
  POM156682  Lupinus sparsiflorus subsp. sparsiflorus L. R. Abrams 1903-4-19 3277 Orange San Juan Comment
  RSA13190  Lupinus sparsiflorus subsp. sparsiflorus Percy C. Everett 1935-5-6 6754 Orange Santa Ana canyon, Rancho Santa Ana, Railroad embankment. 152 Comment
  RSA28731  Lupinus sparsiflorus subsp. sparsiflorus R. S. Woglum 1938-5-8 1614 Orange Ortega Hwy, Santa Ana Mts Comment
  UC1129752  Lupinus succulentus A. Lewis Mar 1934 348 Orange San Juan Hills; Corona Quad., San Juan Hills 396 Comment
  UC537014  Lupinus succulentus L. M. Booth 1932-5-19 1072 Orange Newport Bay Comment
  UCD109603  Lupinus succulentus C. L. Hitchcock 1966-3-15 24133 Orange 1/2 mile e. of Brea. Comment
  UCR223415  Lupinus succulentus Dick Newell, Don Millar 2011-2-8 051 Orange Peninsular Range; Santa Ana Mtns., lower Black Star Canyon, along access road ('State Spur') to Lakeview Rd. 260 Comment
  IRVC24509  Lupinus truncatus Fred M. Roberts, Gordon Marsh 1986-2-28 2613 Orange Lateral to English Canyon along Vista Del Lago; 3.4km ENE El Toro Fire Station, in ravine at base of north-facing slope. Mission Viejo 236 Comment
  RSA404  Lupinus truncatus J. T. Howell 1928-2-25 839 Orange Near Bee Canyon, Rancho Santa Ana. 152 Comment
  UCR193438  Lupinus truncatus A. C. Sanders, Mitch Provance 2008-5-20 35393 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, mouth of Hangman Tree Canyon just above confluence with Santiago Creek Canyon, c. 1/2 mile below Modjeska Canyon confluence 366 Comment
  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
  IRVC15186  Lupinus truncatus Gordon A. Marsh, K. Conrey 1975-4-14 s.n. Orange Lomas de Santiago: Lomas Ridge, 1/4mi NNW Rattlesnake Canyon Reservoir Dam Southern Coastal Comment
  CAS-BOT-BC233467  Lycium californicum Frank W. Peirson 1924-2-10 4526 Orange Balboa, near bridge Comment
  CAS-BOT-BC233471  Lycium californicum Albert N. Steward 1958-3-20 7396 Orange East of Daylight Pass, Death Valley National Monument 1219 Comment
  RSA201743  Lycium californicum Robert F. Thorne 1969-3-4 s.n. Orange 2.5 miles S of Corona del Mar 15 Comment
  RSA428833  Lycium californicum E. S. Spalding 1923-1-1 s.n. Orange Laguna Beach. Comment
  RSA428834  Lycium californicum Albert J. Perkins 1920-6-12 s.n. Orange Corona del Mar Comment
  SD247671  Lythrum californicum R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49631 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Psrings. Shallow water of raodside ditch. Comment
  POM49378  Madia elegans subsp. elegans L. R. Abrams 1901-06 1817 Orange Santiago Peak Trail 915 Comment
  UCSB47588  Madia gracilis Roberts, Jr., Fred 1980-5-3 Orange Santa Ana Mtns., San Juan Canyon near mouth of Viejo Cyn.; below Rte. 74, 2.5 km. by road ENE San Juan Guard Station; 0.5 km. WSW Bm 1100 288 Comment
  POM257048  Malacothamnus fasciculatus W. Pequegnat 1940-5-26 s.n. Orange Black Star Canyon, on Skyline Drive, Santa Ana Mts. 610 Comment
  SD87624  Malacothamnus fasciculatus F. W. Pearson 1924-5-31 4662 Orange sea bluffs, Laguna Comment
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Jul 15 2013
  UCR228776  Malacothamnus fasciculatus Dick Newell, Don Millar 2011-5-24 163 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Hicks Haul Road 286 Comment
  UCR98122  Malacothamnus fasciculatus George K. Helmkamp, E. A. Helmkamp 1997-4-24 1652 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
  RSA95321  Malacothamnus fasciculatus F. W. Peirson 1924-5-31 4662 Orange Sea bluffs at Laguna Beach. Comment
  RSA714449  Malacothrix saxatilis var. saxatilis R. E. Riefner 1999-5-22 99 -289 Orange City of Dana Point, beach west of Pacific Coast Hwy. South of Salt Creek near Ritz Carlton Hotel. 15 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
  UCR67012  Malephora crocea A. C. Sanders 1990-10-6 10188 Orange South Coast, Newport Back Bay, SW side at North Star County Beach, SW end of the bay, c. 2 km inland from Hwy 1/ Pacific Coast Hwy 3 Comment
  UCSB34482  Malephora crocea Ferren, Wayne 1980-8-27 Orange Newport Backbay; just W of Backbay Drive, ca. 2 km. NE of Rt. 1, Newport Beach Comment
  RSA13103  Malosma laurina Percy C. Everett 1935-10-29 2574 Orange Rancho Santa Ana, Santa Ana Canyon N of canal & Mexican houses. 122 Comment
  RSA542520  Malosma laurina Fred M. Roberts, R. Fisher 1986-6-18 3018 Orange Irvine: Lower Shady Canyon, east slope, ca 2.6 km SE French Hill. 91 Comment
  RSA221067  Malus sylvestris E. W. Lathrop 1966-4-6 6133 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  UCR192466  Malva parviflora A. C. Sanders, Fred M. Roberts 2008-3-25 34534 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  RSA471  Malva parviflora J. T. Howell 1928-3-17 870 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA77180  Malvella leprosa F. W. Peirson 1924-8-29 5068 Orange 4 miles S of Santa Ana Comment
  UCR19528  Malvella leprosa Albert J. Perkins 1912-8-6 s.n. Orange Anaheim Comment
  UCR237831  Malvella leprosa Mark A. Elvin 2003-2-2 2283 Orange South Coast, San Joaquin Marsh, UCI campus SSE of intersection of Jamboree Blvd. and Campus Dr. 2 Comment
  RSA441222  Marah macrocarpa L. C. Wheeler 1934-1-14 2356 Orange 1 mile E mouth of Aliso canyon near Laguna. 30 Comment
  RSA441223  Marah macrocarpa E. S. Spalding 1923-1-1 s.n. Orange Laguna Beach. Comment
  UCR221458  Marah macrocarpa Dick Newell, Don Millar 2010-11-30 48 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Agua Chinon Canyon 232 Comment
  RSA652419  Marah macrocarpa Harvey Kennedy 1949-2-20 s.n. Orange Newport Beach, back bay. 9 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
  UCR208991  Marsilea vestita Arthur W. Haupt 1935-4-12 s.n. Orange South Coast, Costa Mesa 30 Comment
  JEPS37133  Matricaria occidentalis L. M. Booth 1932-5-12 1011 Orange Newport Bay Comment
  CAS-BOT-BC60301  Matthiola incana E. K. Balls 1955-4-4 20423 Orange West end of Newport Beach. 3 Comment
  RSA431437  Matthiola incana L. C. Wheeler 1934-1-14 2364 Orange Aliso Creek near Laguna. 76 Comment
  CDA6380  Mazus japonicus W. Humphrey 1973-7-19 Orange 7231 Irvine Boulevard, Santa Ana. 0 Comment
  POM6420  Meconella denticulata L. T. Street, G. Williams 1919-5-10 2751 Orange Turnbull Canyon. Near Whittier 305 Comment
  RSA12927  Meconella denticulata Carl B. Wolf 1935-4-7 6317 Orange San Juan Canyon, Ortega Hwy, 2 miles east Orange County. 762 Comment
  RSA771516  Meconella oregana var. denticulata Keith E. Hoffmaster 1935-5-5 628 Orange San Juan Canyon., Santa Ana Mts. Comment
  RSA697983  Medicago hispida Marjorie Smith s.n. Orange Santa Ana High school grounds. Comment
  IRVC2371  Medicago polymorpha D. Van Gorden 1965-5-2 s.n. Orange Anaheim and Meyer Field. Costa Mesa Comment
  IRVC2383  Medicago polymorpha C. Thompson 1965-4-10 s.n. Orange Newport Beach; Corona del Mar, Corona Highlands. Southern Coastal Comment
  IRVC27501  Medicago polymorpha Mark A. Elvin 2004-5-2 3411 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7km (air) NNW UC Irvine campus center. Southern Coastal 3 Comment
  UCD107895  Medicago polymorpha Ira L. Wiggins 1966-3-22 20539 Orange About 5 miles above Ranger Station, Cleveland National Forest, Silverado Canyon. Comment
  RSA0054890  Medicago sativa Clyde Moesser s.n. Orange Santa Ana. Comment
  RSA746478  Medicago truncatula R. E. Riefner Jr. 2008-3-24 08 -64 Orange Rancho Santa Margarita, Tijeras Canyon, N ca. 0.5 mi from Meandering Trails Rd. on Antonio Pkwy. 221 Comment
  RSA746480  Medicago truncatula R. E. Riefner Jr. 2007-4-1 07 -168 Orange City of Laguna Niguel, Laguna Niguel Regional Park, general vicinity of La Paz Rd. at Aliso Creek. 63 Comment
  UCR186145  Melaleuca citrina Robert DeRuff 1999-3-5 512 Orange Southern Coast, Newport Beach, Newport Back Bay, along Backbay Dr. between Big Canyon and Eastbluff Dr. 15 Comment
  LA10610  Melica imperfecta A. M. Johnson; 1934-4-15 4416 Orange Carmen's, Laguna Beach Comment
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Aug 29 2015
  RSA699156  Melica imperfecta Rankin s.n. Orange Silverado Comment
  RSA703723  Melica imperfecta D. E. Bramlet, Fred M. Roberts 2003-3-13 3334 Orange Donna O'Neill Reserve. North East ridge of the reserve, 915m W of Cristianitos Rd. & 1.2km N of the E-W access road., (11S, 04 46 770E, 37 06 080N) 195 Comment
  UCR192224  Melica imperfecta A. C. Sanders, Fred M. Roberts 2008-5-6 35265 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
  SEINET11678864  Melica imperfecta J. F. Bright, Wyman, C. 1933-1 8214 Orange in foothills near Laguna Beach Comment
  HSC14999  Melilotus albus S. M. Clapp 1966-4-10 42 Orange Just S of Brea Canyon Rd., 1 mi. N of Brea Union Oil Property 61 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
  IRVC24248  Melilotus albus Fred M. Roberts, G. A. Marsh 1985-10-25 2505 Orange Santa Ana River; adjacent to Costa Mesa, 1.3km SSW Adams St. bridge, Southern Coastal 2 Comment
  UCR220025  Melilotus albus 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
  HSC7688  Melilotus indicus J. W. Johnson 1961-3-29 Orange Newport Beach, slope overlooking Upper Newport Bay. Comment
  IRVC2424  Melilotus indicus Ed Hazen 1965-4-27 s.n. Orange Costa Mesa; Victoria St. and Victoria Place. Southern Coastal Comment
  CLARK-A1528-981  Melilotus indicus Patricia A. Andrews 1975-6-26 5919 Orange Capistrano Bay Beach 9 Comment
  RSA0054855  Melilotus indicus Grace Adams 1938-5-29 s.n. Orange Santiago Creek. Comment
  RSA5550  Melilotus indicus Carl B. Wolf 1932-6-28 3762 Orange Bryant Ranch: along western half of north boundary of 40 acre Valencia orange grove at Bryant Ave. and Hansen Road. 9 Comment
  RSA688867  Melilotus indicus Fred M. Roberts 2003-5-1 5668 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, Cristianitos Cyn., 0.49km S Gato Gate and just west of Cristianitos Rd. (San Clemente) 84 Comment
  UCSB12537  Melilotus indicus Whittington, M. 1962-4-17 Orange Vacant lot south of Katella Avenue two blocks east of Tustin Avenue Comment
  UCR3313  Mesembryanthemum crystallinum Cary Brown 1964-3-28 28364- 01 Orange South Coast, Hwy 101 alternate, 1 mile north of San Clemente 6 Comment
  UCSB49276  Mesembryanthemum crystallinum Hibbard, Doug 1977-3-4 Orange Black Bay Rd., 0.5 mile from its junction with Jamboree Blvd. Newport Beach Comment
  JEPS57261  Mesembryanthemum nodiflorum L. R. Heckard and R. C. Bacigalupi 1968-5-8 1835 Orange at s end of the town of Dana Point Comment
  RSA286421  Mesembryanthemum nodiflorum Mary H. O Brien 1976-5-1 s.n. Orange Bolsa Chica Bay 100 m e. of Hwy 1 opposite Bolsa Chica State Beach entrance station. Edge of a 6X10 meter salt burn. 0 Comment
  SEINET11942235  Mesembryanthemum nodiflorum J. F. Bright, Wyman, C. 1933-1 8222 Orange Comment
  UC1929783  Micropus californicus Scott D. White, Amanda Duchardt 2003-3-27 8860 Orange SANTA ANA MOUNTAIN FOOTHILLS: Canyon bottom and west facing slopes above Canada Gobernadora. Comment
  RSA597724  Microseris douglasii subsp. platycarpha D. E. Bramlet 1995-4-29 2404 Orange Fairview Park, City of Coast Mesa. The site is located some 366m N of the intersection of Wilson and Canyon Dr. and 152 m W of the Canyon School, on a mesa overlooking the Santa Ana River. 43 Comment
  UCR158096  Microseris douglasii subsp. platycarpha Adrian Wolf 1998-4-25 150 Orange South Coast, San Joaquin Hills, upper Coyote Canyon, 1 km NW of Signal peak, 2.5 km east of San Joaquin Reservoir 268 Comment
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Nov 21 2015
  UCR158466  Microseris douglasii subsp. platycarpha Adrian Wolf 1998-4-20 110 Orange Santa Ana Mtns., lower Limestone Canyon near Irvine Lake, 3 km SE of Irvine Lake dam, north of Santiago Canyon Rd. 287 Comment
  UCR171017  Microseris douglasii subsp. platycarpha R. E. Riefner Jr. 2006-4-12 06- 117 Orange Irvine, north foot of San Joaquin Hills, vicinity of Quail Hill, SSW of 405 Freeway and Shady Canyon Rd. 46 Comment
  RSA731990  Microseris heterocarpa A. C. Sanders, Fred M. Roberts 2008-4-8 34746 Orange Peninsular Range; Lomas de Santiago, Loma Ridge, SSE of Santiago Reservoir on Loma Ridge Spur Rd., above Dripping Springs Loop Rd 457 Comment
  RSA749295  Microseris heterocarpa Fred M. Roberts, Linda Farley 2008-3-28 6817 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
  RSA749643  Microseris heterocarpa D. E. Bramlet, Fred M. Roberts 2008-4-4 4174 Orange Ridgeline above Limestone Cyn (East Loma Ridge), 1.57km west of Limestone Cyn. & 795m E of Round Cyn. 533 Comment
  RSA598918  Microseris lindleyi Scott D. White 1997-3-28 4846 Orange Above Modjeska Canyon, proposed water tank site 425 Comment
  UCR281570  Mimulus aurantiacus Mitch Provance 2017-6-9 617- 86 Orange Coyote Hills, North Fullerton, East side of Gilbert St., 0.25 miles NNE of intersection with Castlewood Dr. 164 Comment
  UCSC000861  Mimulus aurantiacus Peter Kamb 1946-9-22 441 Orange San Mateo Point 5 Comment
  SEINET3078496 Image available Mimulus aurantiacus subsp. australis Geoffrey Matthews, Jim Hearne, Robin Maetche 1971-5-13 s.n. Orange 4 miles north of Morrill Valley on Hwy 74 Comment
  POM311168  Mimulus aurantiacus var. pubescens H. E. McMinn, M. Van Rensselaer 1945-6-9 1909 -ABC Orange North slope Laguna Canyon ca. 4 mi. east of Laguna Beach. 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
  RSA82104  Mimulus aurantiacus var. pubescens F. W. Peirson 1924-5-31 4660 Orange Laguna Canyon, near Laguna Beach. 61 Comment
  UCR16000  Mimulus aurantiacus var. pubescens Nancy Robb 1966-4-15 s.n. Orange 3 miles SE of Yorba Linda, 1 mi south of Santa Ana Canyon Road 122 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
  LA209161  Mimulus aurantiacus var. pubescens M. H.; O. K., H. H. J. April 1921 sn Orange Fullerton and LIttle Bear Lake Comment
  POM256713  Mimulus aurantiacus var. pubescens W. Pequegnat 1940-6-14 s.n. Orange Trabuca Pk. 1220 Comment
  RSA33814  Mimulus aurantiacus var. puniceus N. C. Cooper 1944-6-4 1341 Orange San Juan Canyon. 305 Comment
  RSA564321  Mimulus aurantiacus var. puniceus B. Pitzer, S. Hemstreet 1992-5-27 1965 Orange Cleveland National Forest. Along road (3S04) to Blue Jay Group Campground, off State Hwy 74 (Ortega Hwy). Approx. 2 mi. (airline) W of El Cariso Campground. 762 Comment
  UCR209662  Mimulus aurantiacus var. puniceus Fred M. Roberts 2008-5-16 6981 Orange South Coast, Dana Point Headlands, Center for Natural Lands Mgmt. Preserve, along north slopes above Dana Strand Beach, 0.8 km west-northwest of the Marine Institute, Dana Point Harbor 45 Comment
  RSA681048  Mimulus brevipes Scott D. White, Michael Honer 2003-5-29 9433 Orange Santa Ana Mountain Foothills: Rancho Mission Viejo. Steep, gen. south-facing slopes above trib. to Trampas Canyon, ca. 0.6 air mi. S of Ortega hwy and ca. ca. 0.5 mi west of Trampas Cyn. 122 Comment
  RSA749994  Mimulus brevipes A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35318 Orange Weir Canyon, along fire line/bulldozer cut, c. 1.5 mi. east of Walnut Cyn Reservoir 346 Comment
  POM256712  Mimulus clevelandii W. Pequegnat 1940-6-15 s.n. Orange Trabuco Peak 1220 Comment
  UCR158807  Mimulus clevelandii A. C. Sanders, Mark A. Elvin 2005-9-2 31612 Orange Santa Ana Mtns., near head of Holy Jim Canyon, a major tributary of Trabuco Canyon, along the trail in the switchbacks, below the towers on Santiago Peak 998 Comment
  UCSC000866  Mimulus clevelandii Peter Kamb 1948-6-19 1102 Orange Holy Jim Canyon, Santa Ana Mts. 610 Comment
  RSA701812  Mimulus floribundus Fred M. Roberts, David Bramlet 2003-6-6 5902 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, west slopes of Cristianitos Canyon, 0.86 km SSW Gato Gate and 0.39 km W of Cristianitos Road. Comment
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Nov 9 2014
  RSA0036645  Mimulus floribundus Robt. Allen, Richard Newell 2009-7-11 s.n. Orange Peninsular Ranges; Santa Ana Mountains regions: Upper Santiago Canyon, just past community of Modjeska Canyon, Fleming Ranch, East end of Modjeska Canyon Road. 621 Comment
  RSA447957  Mimulus guttatus M. B. Dunkle 1934-6-18 3948 Orange San Juan Canyon. 305 Comment
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Jun 14 2012
  RSA701948  Mimulus guttatus Fred M. Roberts, David Bramlet 2003-6-6 5901 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, west slopes of Cristianitos Canyon, 0.86 km SSW Gato Gate and 0.39 km W of Cristianitos Road. Comment
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Nov 7 2014
  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
  IRVC28636  Mimulus pilosus Mark A. Elvin 2005-9-2 4491 Orange Santa Ana Mtns: along San Juan Creek, ca. 1.0km upstream from San Juan Hot Springs; off Ortega Hwy (74), near bridge. Peninsular Ranges 259 Comment
  IRVC25444  Minuartia douglasii var. douglasii Fred M. Roberts 1987-5-9 3432 Orange San Juan Trail above Chiquito Basin, 2.3km SSE Los Pinos Peak, Santa Ana Mountains 952 Comment
  RSA0126621  Mirabilis laevis var. crassifolia Fred M. Roberts 2012-4-24 7501 Orange San Joaquin Hills: Buck Gully, W of intersection of Ridge Park Road and Newport Coast Drive, 1.5 km W Signal Peak. 179 Comment
  UC1287146  Mirabilis laevis var. crassifolia C. L. Hitchcock 1966-3-15 24143 Orange Stearns Lease, 1.5 miles E of Brea Comment
  UC537286  Monanthochloe littoralis Lawrence M. Booth 1932-7-27 1318 Orange Newport Bay Comment
  CAS-BOT-BC219927  Monardella breweri subsp. lanceolata L. R. Abrams 1901-7-13 1788 Orange San Joaquin Hills Comment
  IRVC28200  Monardella hypoleuca A. C. Sanders, Mark A. Elvin 2005-9-2 31609 Orange Upper Holy Jim Canyon, a major tributary of Trabuco Cyn, along trail in the switchbacks. Santa Ana Mountains 970 Comment
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Aug 13 2012
  RSA795173  Monardella hypoleuca subsp. intermedia A. C. Sanders, Mark A. Elvin 2005-9-2 31613 Orange near head of Holy Jim Canyon, a major tributary of Trabuco Canyon, along the trail in the switchbacks, below the towers on Santiago Peak 998 Comment
  SBBG127388  Monardella hypoleuca subsp. intermedia A. C. Sanders with F. M. Roberts 2008-7-3 35683 Orange Weir Cyn, off Windy Ridge Rd below saddle on ridge above the Eastern Transportation Corridor; Santa Ana Mtns 365 Comment
  UCR193800  Monardella hypoleuca subsp. intermedia A. C. Sanders, Fred M. Roberts 2008-7-3 35681 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor 415 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
  POM147619  Muhlenbergia asperifolia F. M. Reed 1927-9-19 5470 Orange Santa Ana Canon Highway at Peralta Heights 91 Comment
  UCR205983  Muhlenbergia asperifolia R. E. Riefner Jr. 2000-3-26 20- 150 Orange Peninsular Range, Santa Ana Mountains: North Ranch Policy Plan Area, Fremont Canyon, north of major stream fork along west channel drainage 335 Comment
  LA9673  Muhlenbergia microsperma LeRoy Abrams; 1903-4-18 3260 Orange near San Juan Capristrano Comment
  RSA598923  Muhlenbergia microsperma Scott D. White 1997-3-28 4853 Orange Above Modjeska Canyon, proposed water tank site 425 Comment
  RSA752038  Muhlenbergia microsperma Fred M. Roberts 2008-3-27 6811 Orange Dana Point: Dana Point Headlands, CNLM Preserve near Outlook 1, 0.5km W Marine Institute (Dana Point Harbor). 45 Comment
  SD27973  Muhlenbergia microsperma Carl B. Wolf 1932-3-8 2689 Orange 1/2 mi. No. of Corona Del Mar. Borders of Newport Bay, low bluffs 7 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
  UCR192222  Muhlenbergia rigens A. C. Sanders, Fred M. Roberts 2008-5-6 35273 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, upper Limestone Canyon, 2.9 mi. NNW of El Toro 379 Comment
  RSA682753  Muilla maritima Scott D. White, Amanda Duchardt 2003-3-27 8847 Orange Canyon bottom and west facing slopes above Canada Gobernadora. 91 Comment
  UCR239624  Myoporum rapense Fred M. Roberts 2012-4-24 7496 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
  RSA696204  Myosotis arvensis Ruth Greenwald, Virginia Pritchard 1938-05 s.n. Orange Santa Ana. Comment
  RSA696203  Myosotis arvensis Virginia Pritchard, Ruth Greenwald 1938-05 s.n. Orange Santa Ana. Comment
  CAS-BOT-BC219359  Nama stenocarpa Le Roy Abrams 1901-6-13 1770 Orange Laguna Comment
  UC1607973  Nama stenocarpa Donald G. Nelson 1936-7-26 441 Orange on the mesa n of Newport Beach Costa Mesa (Costa Mesa) Comment
  UCR247878  Nama stenocarpa Fred M. Roberts, Laura Cohen 2012-10-31 7714 Orange San Joaquin Hills, Upper Laguna Lake, north end. Laguna Coast Wilderness Park, c. 5.1 km east northeast of Signal Hill 113 Comment
  CAS-BOT-BC259822  Nassella cernua LeRoy Abrams 1903-4-18 3269 Orange Trabuco Canon [Trabuco Canyon], Capistrano Comment
  RSA638967  Nassella lepida Valerie L. Soza, LeRoy Gross 1999-6-8 500 Orange Santa Ana Mountains: Santiago and Modjeska Canyons, above Tucker Wildlife Sanctuary, above the town of Modjeska 518 Comment
  RSA680735  Nassella lepida Scott D. White 2003-3-21 s.n. Orange Santa Ana Mountain Foothills: Rancho Mission Viejo. East-facing slopes above an unnamed tributary to San Juan Creek. 122 Comment
  UCSB47946  Nassella lepida Roberts, Dar 1980-5-3 Orange Roadside 111 on hwy. 74 340 Comment
  RSA535968  Nassella pulchra Fred M. Roberts 1989-4-17 4267 Orange Santa Ana Mtns: Central Blind Canyon, 7.3km SW Sierra Peak, 2.4km N Irvine Lake,, UTM 37 40 700 m N, 4 32 900m E. 259 Comment
  UCD87541  Nassella pulchra C. L. Hitchcock 1966-3-15 24142 Orange Stearns Lease, 1.5 miles east of Brea. 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
  RSA734670  Nasturtium officinale A. C. Sanders, T. B. Salvato 2008-5-13 35375 Orange Lomas de Santiago, Santiago Canyon above (S of) mouth of Hangman Tree Canyon, just below Modjeska Canyon confluence 366 Comment
  RSA703388  Nasturtium officinale R. E. Riefner Jr. 2003-11-30 3 -483 Orange Peters Canyon Channel at Alton St., E of Jamboree Rd. near Irvine City Hall. 22 Comment
  UCSB57134  Nasturtium officinale Marsh, G. 1975-7-28 Orange Huntington Beach; East Garden Grove-Wintersburg Flood Control Channel (no.C05); stream bank just N of Warner St. bridge crossing Comment
  POM50445  Nemacaulis denudata var. denudata L. R. Abrams 1901-06 1757 Orange Anaheim Landing Comment
  RSA234542  Nemacaulis denudata var. denudata James Henrickson 1970-7-24 5017 Orange 3 miles NW of Huntington Beach on sandy ''Rabbit'' Island in Bolsa Chica Salt March near Inner Bolsa Bay. 1 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
  UC2030080  Nemacaulis denudata var. denudata Valerie Soza, K. Clark, LeRoy Gross, Will Miller, Fred M. Roberts, G. D. Wallace 2001-4-4 1131 Orange Bolsa Bay / Bolsa Chica Beach: Bolsa Chica Beach State Park and Bolsa / Chica Ecological Reserve Boundary, alongside Pacific Coast Highway. Comment
  UCR14358  Nemacaulis denudata var. denudata Judy Knouse 1974-5-5 s.n. Orange Newport Beach, Newport Peninsula, 8th & 9th St. sand dunes 2 Comment
  RSA773546  Nemacladus ramosissimus Fred M. Roberts 1999-4-26 5196 Orange Lomas de Santiago: Lomas Ridge, tributary to Santiago Canyon Wash on ridge between Limestone Canyon and the wash, 1.4 km SE Silverado School, and 2.7 km N Bolero Lookout. 358 Comment
  RSA616  Nemophila menziesii J. T. Howell 1928-3-18 889 Orange Rancho Santa Ana, Botanic Garden. 152 Comment
  JEPS1893  Nemophila menziesii var. integrifolia Alice King April, 1908 Orange Santa Ana Mountains Comment
  IRVC152  Nephrolepis cordifolia Ed Hazen 1965-4-1 HS 537 Orange Trabuco Canyon Santa Ana Mountains Comment
  RSA0060640  Nephrolepis cordifolia Richard E. Riefner 2014-6-14 14 -171 Orange City of Newport Beach, Cliff Drive Park, along Cliff Dr. near Beacon St. 44 Comment
  RSA0060643  Nephrolepis cordifolia Richard E. Riefner 2014-2-24 14 -64 Orange City of Dana Point, W ca. 0.1 mi from Island Way, Dana Point Harbor Dr., cliff slope immediately S of Santa Clara Ave. and Amber Lantern St. 3 Comment
  UC2042004  Nephrolepis cordifolia R. E. Riefner Jr. 2010-5-14 10 -35 Orange City of Laguna Beach, N side of North Coast Highway near Jasmine St. Comment
  IRVC153  Nephrolepis exaltata L. Burns 1965-4-21 s.n. Orange Newport Beach; Lido Island Southern Coastal Comment
  RSA0020229  Nicotiana attenuata J. Vlahos 1933-1 s.n. Orange Orange Co. Park. Comment
  RSA733867  Nicotiana bigelovii Keith E. Hoffmaster 1934-7-15 114 Orange near Irvine Comment
  RSA542352  Nicotiana bigelovii var. wallacei Fred M. Roberts, Gordon Marsh, Karlin G. Marsh 1988-4-26 3939 Orange San Joaquin Hills: hill between Pelican and Signal Hills, 0.8km ENE Pelican Hill. 207 Comment
  HSC21273  Nicotiana glauca C. L. Hitchcock 1966-3-15 24144 Orange Stearns Lease, 1.5 mi. E of Brea. Comment
  LA45882  Nicotiana glauca W. E. Pequegnat; 1937-9-6 sn Orange Santa Ana Mountains, Ortega Rd Comment
  SEINET7073413  Nicotiana glauca A. G. Vestal 1963-4-24 s.n. Orange La Paz Canyon, Rancho Mission Viejo. Coordinate datum: NAD27. Comment
  UCD126655  Nicotiana glauca C. L. Hitchcock 1966-3-15 24144 Orange Stearns Lease, 1.5 miles east of Brea. Comment
  UCR100462  Nicotiana glauca B. G. Pitzer 1996-4-30 2761 Orange South Coast, Upper Newport Bay, Calif. Dept. Fish & Game Ecological Reserve, off (W of) Jamboree Road 6 Comment
  UCR191471  Nicotiana glauca A. C. Sanders, Fred M. Roberts 2008-4-8 34738 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, head of Hicks Canyon, S of Santiago Reservoir 351 Comment
  RSA651999  Nicotiana glauca Norman Willis 1948-2-8 s.n. Orange 2 miles E of Orange. 61 Comment
  RSA662315  Nicotiana glauca Dolores Perez 1981-4-11 1 Orange Carbon Canyon Rd., 6 miles E. of junction with Ca Hwy 90. Comment
  RSA0020234  Nicotiana quadrivalvis Gray s.n. Orange Orange Park Acres. Comment
  SEINET12856155  Nicotiana quadrivalvis P. C. Everett 1935-1 7259 Orange 0.8 mile E. of Atwood, S side of RR tracks 107 Comment
  CHSC106530  Nolina cismontana Robt. Allen; Celia Kutcher 2007-5-19 Orange Peninsular Ranges; Santa Ana Mountains region: San Juan Trail, circa 3.4 air miles (5458 m) below (southwest of) trailhead at southern edge of Blue Jay Campground, circa 1.3 air miles (2121m) above (northeast of) trailhead at Hot Springs Canyon. UTM Zone 11S; 3719486N 454160E. 736 Comment
  RSA126  Nolina cismontana J. T. Howell 1927-7-24 467 Orange Claymine Canyon, near Sierra Peak 167 Comment
  RSA615783  Nolina cismontana James C. Dice 1985-5-23 593 Orange Upper Borrego Canyon, along Santiago Canyon Rd., 1.8 km south of Modjeska Canyon Rd., Near 33 42 08N, 117 38 24W 440 Comment
  RSA658138  Nolina cismontana R. E. Riefner 2000-7-6 20 -616 Orange NCCP North Ranch Policy Plan Area; NE property, along Nat l Forest Boundary, S of Claymore Mine Comment
  SD121704  Nolina cismontana James C. Dice, Thomas Oberbauer 1986-5-3 649 Orange Santa Ana Mountains, upper Borrego Canyon, along Santiago Canyon Road, 1.8 kilometer south of Modjeska Canyon Road Comment
  SD122648  Nolina cismontana James C. Dice 1986-5-31 653 Orange Mission Viejo, 1.2 kilometer northwest of Lake Mission Viejo, along southwest edge of Vista del Lago just west of intersection with Canaveras Comment
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Mar 19 2009
  UCR152560  Nolina cismontana James C. Dice, T. Oberbauer 1986-5-3 651 Orange Santa Ana Mtns, 0.2 km west of Trabuco Canyon 365 Comment
  RSA734216  Nolina parryi Keith E. Hoffmaster 1936-5-3 726 Orange Live Oak Canyon, Santa Ana Mts Comment
  JEPS11321  Nuttallanthus texanus Alice King March, 1908 Orange Anaheim Plains Comment
  UC1618040  Nuttallanthus texanus Donald G. Nelson 1935-4-14 283 Orange near Pacific Electric Railway Station, Newport Beach Comment
  SD212676  Oenothera elata A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33010 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
  RSA771511  Oenothera micrantha Keith E. Hoffmaster 1927-4-2 465 Orange Santa Ana Mountains [county not specified] Comment
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Jun 10 2012
  RSA0125894  Oenothera speciosa Fred M. Roberts 2012-5-9 7550 Orange Lake Forest: near Serrano Creek, utility road, 0.3 km SSW intersection of Commerce Centre and Dimension Drives. 206 Comment
  UCR239649  Oenothera speciosa Fred M. Roberts 2012-5-9 7550 Orange Santa Ana Mountains, Lake Forest, near Serrano Creek utility road, 0.3 m south-southwest of intersection of Commercentre and Dimension Drives 206 Comment
  RSA658206  Oenothera speciosa T. A. Daubert 1991-5-26 671 Orange Tucker Wildlife Sanctuary, Modjeska Canyon nature trail. Comment
  UC527179  Oenothera suffrutescens Carl B. Wolf 1932-7-2 Orange 1 1/2 mi e of Brea (on Cedar Street); Cedar Street 106 Comment
  UC1005020  Oenothera xenogaura E. Johnson 1940-8-15 Orange 1.5 mi n of Placentia (Klokke Estate); Klokke Estate Comment
  RSA753081  Olea europaea A. C. Sanders, Fred M. Roberts 2008-9-18 36081 Orange Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge. 320 Comment
  RSA562725  Olea europaea Steve Boyd 1992-5-20 7461 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of the wilderness in Lucas Canyon along canyon floor from crossing Lucas Canyon Trail., Upstream 1/4 mile to spur trail leading to old mining habitations in side canyon. 305 Comment
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Feb 4 2016
  CAS-BOT-BC427453  Oligomeris linifolia Carl B. Wolf 1932-6-28 3792 Orange Bryant Ranch, at the extreme SW. corner of the SW. 40 of the SE. 160 of sect. 27. T4S. R11W. Comment
  UCR235514  Oncosiphon piluliferum R. E. Riefner Jr. 2011-5-20 11- 57 Orange South Coast, Newport Beach, Coastal Peak Park, East Coastal Peak Road at Ridge Park Road 305 Comment
  POM288521  Opuntia X occidentalis Lyman Benson 1955-10-17 15597 Orange Moulton Ranch just west of the summit east of Laguna Beach. 152 Comment
  POM317674  Opuntia X occidentalis Lyman Benson 1966-3-19 16614 Orange Irvine Ranch, 4 miles northeast of Newport Beach. 91 Comment
  SD152894  Opuntia X occidentalis Steve Boyd, Tim Ross 1992-5-19 7425 Orange Southern Santa Ana Mountains, San MateoCanyon Wilderness Area, western edge of the wilderness along Lucas Canyon Trail from access road to Rancho Carrillo north into Aliso Canyon. Local, openings in chaparral. (IPB 9/07) 365 Comment
  UCR237804  Opuntia X occidentalis Mark A. Elvin 2004-5-2 3412 Orange Southern Coastal, Irvine: San Joaquin Freshwater Marsh, near Campus and University Drives; 1.7 km (air) NNW UC Irvine campus center 3 Comment
  OBI37758  Opuntia X vaseyi D. J. Pinkava & M. G. McLeod, M. G. McLeod 1970-11-8 312 Orange 1/2 mi E of Warner Airport 914 Comment
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Nov 18 2013
  HSC3800  Opuntia littoralis J. W. Johnson 1961-3-29 Orange Newport Beach, slope overlooking Upper Newport Bay. Comment
  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
  RSA6608  Opuntia oricola B. D. Stark 1933-1-26 4527 Orange Rancho Santa Ana. Comment
  UCD169566  Opuntia oricola T. B. Salvato 2010-10-27 5128 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. 52 Comment
  CAS-BOT-BC500129  Orobanche fasciculata Le Roy Abrams 1901-6-15 1847 Orange Santiago Peak Comment
  RSA0104810  Orobanche fasciculata R. S. Woglum 1941-6-20 s.n. Orange Peninsular Ranges: Harmony Ranch?, Santa Ana Canyon; Santa Ana Mountains [Orange/Riverside counties]. Comment
  OBI35850  Orobanche parishii Steve Boyd 1982-7-26 s.n. Orange Rancho Mission Viejo. Ashbury Cyn N of Arroyo Trabuco Comment
  UCR26601  Orobanche parishii Steve Boyd 1982-7-26 s.n. Orange Rancho Mission Viejo, Ashbury Canyon north of Arroyo Trabuco Comment
  POM156459  Orthocarpus densiflorus var. gracilis L. R. Abrams 1903-4-18 3266 Orange Near San Juan Capistrano Comment
  RSA542380  Orthocarpus densiflorus var. gracilis Fred M. Roberts Jr. 1987-4-3 3333 Orange Costa Mesa; Fairview Park, Just west of end of Canyon Drive, 0.1 km W Canyon School. 24 Comment
  RSA15943  Orthocarpus purpurascens var. pallidus Percy C. Everett 1935-4-27 6692 Orange Bryant Ranch. NW corner Hansen Rd. and Bryant Ave. 30 Comment
  CAS-BOT-BC254369  Oryza sativa Ira L. Wiggins 1965-11-6 20335 Orange Near railroad right of way, along W side of Atwood Comment
  UCR209663  Osmadenia tenella Fred M. Roberts 2008-5-16 6984 Orange South Coast, Dana Point Headlands, Center for Natural Lands Mgmt. Preserve north of Marguerita Drive, 0.5 km west-northwest of the Marine Institute, Dana Point Harbor 75 Comment
  POM8753  Osmorhiza brachypoda P. A. Munz, R. D. Harwood 1920-4-25 3722 Orange Santa Ana Mountains, Silverado Canyon. 549 Comment
  UCR217468  Osteospermum fruticosum Mark A. Elvin 2003-2-23 2315 Orange South Coast, Irvine, San Joaquin Marsh along the berm of San Diego Creek 3 Comment
  UC484249  Oxalis albicans subsp. californica C. B. Wolf 1931-3-6 1858 Orange 1.5 mi below Trabaco Camp (Trabaco Canyon); Santa Ana Mtns, W slope 548 Comment
  UCSB48385  Oxalis californica Roberts, Fred 1982-4-18 Orange San Juan Canyon, Hwy 74, 0.6km SW Lower San Juan Picnic Ground; 1.9km WNW Sitton Peak, Santa Ana Mtns. 420 Comment
  UCR89487  Oxalis pes-caprae Steve Boyd, T. S. Ross 1994-3-22 8203 B Orange Peninsular Range; Santa Ana Mtns., San Juan Canyon along San Juan Creek, near confluence with Hot Springs Canyon 229 Comment
  RSA2087  Paeonia californica Carl B. Wolf 1931-3-6 1842 Orange Trabuco canyon, 1/2 mile above Trabuco Oaks, west slope of Santa Ana Mountains. 457 Comment
  RSA41793  Paeonia californica E. B. H. 1948-3-21 s.n. Orange Near San Juan Camp, Orange County. Comment
  RSA732237  Paeonia californica A. C. Sanders, Fred M. Roberts 2008-4-22 35048 Orange Lomas de Santiago, slopes of south end of Loma Ridge and at head of Limestone Canyon, c. 2.5 miles SW of Silverado. 457 Comment
  POM366043  Panicum capillare Anonymous 1914-8-21 30 Orange Found growing at road side near Smeltzer 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
  SEINET6655641  Panicum virgatum R. E. Riefner Jr. 2006-10-8 06 -482 Orange City of Irvine, San Diego Creek near 405-Freeway.; 0 49 Comment
  RSA594821  Papaver californicum Fred M. Roberts, Sandy Leatherman, B. Leatherman 1994-4-24 4915 Orange Santa Ana Mountains: San Juan Canyon, CA route 74, Lower San Juan Picnic Ground. 354 Comment
  POM50185  Parietaria hespera var. californica Helen D. Gris 1902-1 509 Orange Hills of Orange Country. 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
  RSA648017  Paspalum dilatatum J. C. Roos 1936-10-13 1533 Orange Costa Mesa near Santa Ana. Comment
  POM1056  Paspalum distichum Daniel J. Crawford 1916-7-26 750 Orange Aliso Canyon Comment
  RSA603302  Paspalum distichum Scott D. White, Brian Leatherman 1997-6-12 5333 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
  SD227703  Paspalum distichum Scott D. White, Brian Leatherman 1997-6-12 5333 Orange East of San Juan Capistrano: San Juan Creek between Hwy 74 bridge and Mission Vieja site, i.e., ca 2 to 4 mi E of I-15 / Hwy 74 jtn. Comment
  RSA766071  Paspalum pubiflorum R. E. Riefner Jr. 2009-11-11 09 -237 Orange City of Mission Viejo, Oso Creek, ca. 1.4 mi N of Paseo De Colinas on Camino Capistrano. Rip-rap rocks near a waste water treatment plant. 88 Comment
  RSA724061  Paspalum urvillei R. E. Riefner 2005-11-4 5 -742 Orange City of Lake Forest, Alton Pkwy. at Bertea Rd. 123 Comment
  RSA733140  Paspalum vaginatum R. E. Riefner 2007-10-17 7 -436 Orange City of Dana Point, Doheny State Beach, W side of San Juan Creek Lagoon. 6 Comment
  UCR204907  Paspalum vaginatum R. E. Riefner Jr. 2007-7-23 07- 314 Orange South Coast, city of Newport Beach, east of Jamboree Road at Bayview Way, San Diego Creek confluence with Newport Bay 6 Comment
  UCR204909  Paspalum vaginatum R. E. Riefner Jr. 2008-1-13 08- 9 Orange South Coast, city of Newport Beach, San Diego Creek near Hwy 73 overpass, east of Jamboree Road 6 Comment
  CAS-BOT-BC169736  Pectocarya anisocarpa Helen D. Geis 1902-3-27 s.n. Orange Santiago Creek Bed Comment
  UCR192629  Pectocarya linearis A. C. Sanders, Fred M. Roberts 2008-3-25 34525 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  RSA0054893  Pectocarya linearis Keith E. Hoffmaster 1932-2-28 62 Orange Santa Ana Mts. Comment
  UCSB57587  Pectocarya linearis subsp. ferocula Roberts, Fred 1984-2-15 Orange Casper's Regional Park: Rancho Carillo Rd.; 1.0 km. NE Visitor Center; 3.0 km. SW Lucas Survey Mark 150 Comment
  RSA1458  Pedicularis densiflora E. R. Johnson 1929-4-11 1259 Orange Sierra Peak Trail. Comment
  UCSB52873  Pedicularis densiflora A., D.; Roberts, Fred 1983-3-22 Orange Santa Ana Mts.: San Juan Canyon, along Hwy 74, 2.7 km ENE San Juan Guard Station; 3.7 km SSW Sugarloaf Peak 360 Comment
  RSA782219  Pelargonium Mark A. Elvin 2005-5-14 4313 Orange UCI Arboretum 15 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
  SD144154  Pellaea andromedifolia var. andromedifolia Scott D. White 1997-3-28 4835 Orange Above Modjeska Canyon: proposed water tank site. 420 Comment
  CAS-BOT-BC71392  Pellaea mucronata Geo. L. Moxley 1927-5-1 s.n. Orange La Crescenta Comment
  IRVC3150  Pellaea mucronata var. mucronata E. P. Cowper Orange Trabuco Canyon. Santa Ana Mountains Comment
  CAS-BOT-BC258812  Pennisetum setaceum Peter H. Raven 1957-9-28 11395 Orange Laguna Beach Comment
  UCR182899  Pennisetum setaceum Dean Kelch 2006-12-9 06 .564 Orange Irvine. University Dr. along tidal Creek just east of I-73 9 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
  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
  NY601663  Penstemon heterophyllus var. australis F. R. Fosberg 1931-6-21 55149 Orange Silverado Canyon, Santa Ana Mountains Comment
  RSA542378  Penstemon heterophyllus var. heterophyllus Bernard Jaroslow 1989-5-29 B- 22 Orange Santiago Canyon: Along the Morrow Trail out of Live Oak Canyon, below truck trail. Comment
  UC1063198  Penstemon spectabilis A. Lewis May 1934 436 Orange Los Pinos Peak Cleveland National Forest, Elsinore Quad. Comment
  NY661144  Penstemon spectabilis var. spectabilis L. Abrams 1901-6-15 1842 Orange Santiago Peak 1676.4 Comment
  POM351577  Pentachaeta aurea Anstruther Davidson 1893-05 s.n. Orange Santiago Canyon Comment
  RSA13057  Pentachaeta aurea Percy C. Everett 1935-4-22 6463 Orange 1/4 mile W of Horseshoe Bend, Santa Ana Canyon 122 Comment
  IRVC14091  Pentagramma triangularis subsp. triangularis B. T. Gittins 1966-11-13 1672 Orange Silverado Canyon, 1mi past historical marker; shaded bank near stream bed. Santa Ana Mountains Comment
  LA210786  Pentagramma triangularis subsp. viscosa Lawrence L. Kiefer; 1963-11-17 1099 Orange Laguna Canyon, Laguna Beach, near road to Irvine, just back of the city. 60 Comment
  LA204536  Peritoma arborea A. M. Johnson; 1927-12-30 sn Orange Laguna Comment
  CAS-BOT-BC77511  Peritoma arborea var. arborea R. D. Goeden; D. W. Ricker 1965-6-21 s.n. Orange Dana Point 60 Comment
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Feb 22 2019
  SD145971  Peritoma arborea var. globosa R. D. Goeden, D. W. Ricker 1965-6-21 Orange Dana Point 60 Comment
  SBBG61477  Persicaria amphibia J. Ewan 1931-7-31 Orange Westfall near Huntington Beach Comment
  RSA595  Phacelia cicutaria var. hispida J. T. Howell 1927-6-5 35 Orange Rancho Santa Ana, near east boundary. 152 Comment
  RSA638969  Phacelia cicutaria var. hispida Valerie L. Soza, LeRoy Gross 1999-6-8 498 Orange Santa Ana Mountains: Santiago and Modjeska Canyons, above Tucker Wildlife Sanctuary, above the town of Modjeska 518 Comment
  RSA699147  Phacelia cicutaria var. hubbyi Helen Stanley s.n. Orange Limestone Canyon. Comment
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Jun 12 2019
  RSA3175  Phacelia distans Carl B. Wolf 1932-3-8 2688 Orange 1/2 mile N of Corona del Mar, Newport Bay. 8 Comment
  RSA74144  Phacelia distans F. W. Peirson 1923-5-5 4713 Orange Trabuco Canyon, Santa Ana Mountains 518 Comment
  SD72104  Phacelia distans John Thomas Howell 1928-1-15 3277 Orange Gypsum Station on side of Santa Ana CaA'on. 152 Comment
  RSA16479  Phacelia minor Percy C. Everett 1935-6-19 7228 Orange Main Divide Motorway, Bear Spring. 1220 Comment
  POM8648  Phacelia parryi P. A. Munz, R. D. Harwood 1920-4-24 3780 Orange Sierra [Freemont] Canyon 366 Comment
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Sep 17 2011
  UCR224034  Phacelia parryi Justin M. Wood 2010-3-31 1449 Orange Santa Ana Canyon, Santa Ana River floodplain, 0.25 mi north of Coal Canyon wildlife corridor, west of Green River Golf Course on bluff south of the river 122 Comment
  SEINET998493  Phacelia ramosissima Mark A. Elvin 2004-1 3525 Orange Southern Coastal: UCI Arboretum (Tustin 7.5') Comment
  CAS-BOT-BC154389  Phacelia ramosissima var. latifolia John Thomas Howell 1927-7-16 2780 Orange hill on north side of Santa Ana [Canon] Canyon 152 Comment
  RSA759206  Phacelia suaveolens subsp. keckii Robt. Allen, Reginald Durant 2008-5-16 s.n. Orange Modjeska Peak, S face, midway down a steep fire break cut from the summit down to the access road. Survey point #60. 1663 Comment
  CAS-BOT-BC250614  Phalaris minor Carl B. Wolf 1932-5-18 3636 Orange Rancho Santa Ana Botanic Garden, near East porch of administration bldg. 198 Comment
  IRVC22183  Phalaris minor Fred M. Roberts 1985-4-11 1642 Orange Dana Point Headlands; Weyerhaeuser Horticultural Research Station property. Southern Coastal 61 Comment
  RSA734636  Phalaris minor A. C. Sanders, T. B. Salvato 2008-5-13 35367 Orange Lomas de Santiago, Santiago Canyon above (S of) mouth of Hangman Tree Canyon, just below Modjeska Canyon confluence 366 Comment
  UC729882  Phalaris minor Carl B. Wolf 1932-7-7 3854 Orange Bixby Ave. 3/10 mi e Los Alamitos Blvd. (Bryant Ranch) 48 Comment
  UCR170306  Phalaris minor J. B. Anderson 1966-4-22 603 Orange South Coast, San Joaquin Hills, Los Trancos Canyon 183 Comment
  POM356937  Phalaris paradoxa Anstruther Davidson 1916-6-1 3156 Orange Brea Ranch Comment
  RSA706005  Phalaris paradoxa D. E. Bramlet 2003-6-8 3463 Orange Fairview Park, City of Costa Mesa. 152mW of the Canyon School & 396m NW of the intersection of Wilson and Cyn. Drive 24 Comment
  UCR218373  Phoenix dactylifera Robert DeRuff 2008-1 570 Orange South Coast, Upper Newport Bay, between Mariner's Drive and North Star Beach 6 Comment
  RSA459266  Pholistoma auritum Albert J. Perkins 1914-3-9 s.n. Orange Laguna Beach Comment
  UC1377701  Pholistoma auritum John Ingram 1960-3-29 263 Orange along rd. 2 mi. above O'Neill Park; Trabuco Canyon Comment
  UCR98214  Pholistoma auritum B. G. Pitzer 1997-4-15 3135 Orange San Joaquin Hills, Crystal Cove State Park, north of the N end of the City of Laguna Beach. Along Moro Canyon Trail, from beginning to a point c. 1.75 mi. up the canyon. 49 Comment
  POM182012  Phyla lanceolata F. W. Peirson 1924-8-29 5094 Orange Road from Artesia to Hungtington Beach, along ditch Comment
  UC1974774  Phyllospadix torreyi Alison Kendall 2003-5-20 Orange Crystal Cove Comment
  UCR19761  Phyllospadix torreyi F. M. Reed 1932-5-24 7233 Orange South Coast, San Juan Capistrano, behind beach dune 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
  RSA699075  Physalis philadelphica J. Vlahos 1932-10 s.n. Orange Field by S.A. River Bed. Comment
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Apr 23 2011
  SD43531  Physalis philadelphica P. A. Munz 1946-11-7 11607 Orange near Administration Building, Rancho Santa Ana Botanic Garden, Santa Ana River Canyon 198 Comment
  RSA79903  Physalis philadelphica F. W. Peirson 1924-10-19 5239 Orange Wintersberg Comment
  IRVC29822  Picris echioides Artie Thomas, Mark A. Elvin 2006-9-23 609234 Orange San Joaquin Marsh Freshwater Marsh, UC Natural Reserve; SW edge, along San Diego Creek, N of University Drive, E Hwy 73. Southern Coastal 2 Comment
  IRVC872  Picris echioides D. DeVault 1965-5-1 Orange Corona del Mar, Carnation Street. Newport Beach Comment
  IRVC873  Picris echioides D. W. Bryant 1965-3-28 Orange Laguna Canyon; Laguna Canyon Rd. Southern Coastal Comment
  POM202174  Picris echioides L. M. Booth 1932-6-7 1168 Orange Newport Lagoon. Comment
  RSA472042  Picris echioides James Henrickson 1970-7-25 5037 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
  UCR191217  Picris echioides A. C. Sanders 2008-4-29 35143 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, western end of Loma Ridge on road to sheriff's training facility, c. 1.5 mi. SW of Santiago Reservoir 335 Comment
  UCSC000843  Picris echioides I. J. Condit 2008-7-25 s.n. Orange Huntington Beach Comment
  POM17834  Picris echioides P. A. Munz 1923-9-7 7772 Orange Tustin 30 Comment
  RSA694924  Pilularia americana H. H. T 1935-3-23 s.n. Orange Costa mesa pools 26 Comment
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May 12 2014
  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
  OBI6107  Pinus attenuata Carl B. Wolf 1934-12-21 6259 Orange S slope of main ridge, saddle NW of Sugarload Pk (Pleasants pk) 1-3/10 mi S of summit of Skyline Dr, Santa Ana Mts 1158 Comment
  RSA12827  Pinus attenuata C. B. Wolf 1934-12-21 6260 Orange N.E. of Sugarloaf Peak (Pleasants Pk.), along Main St. Trail, Santa Ana Mts. Altitude 3800 ft.c. 1159 Comment
  RSA175269  Pinus attenuata Robert F. Thorne 1963-7-26 32824 Orange Trabuco District, Santa Ana Mts., Cleveland National Forest. 1159 Comment
  MACF029432  Pinus coulteri Robert L. Allen; Heather E. Wendel; Xanic J. Rondon; Laurie A. Clarke 2001-7-13 12242 Orange Santa Ana Range, San Juan Canyon, 3.7 road miles E of San Juan Guard Station following Ortega Hwy SR74. Lower San Juan Picnic Area, SW of region of main picnic area 443.7 Comment
  UCR144743  Pinus coulteri A. S. Boughey 1965-3-16 58 Orange Santa Ana Mtns., Silverado Canyon Comment
  UCR174182  Pinus coulteri A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33036 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
  UCSB47634  Pinus coulteri Roberts, Fred 1980-5-3 Orange On west side of road; Main Divide Truck Trail, 0.6 km. southeast of Trabuco Peak, Santa Ana Mtns. 1259 Comment
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Nov 8 2007
  HSC1549  Pinus quadrifolia Uknown 1957-8-21 Orange Laguna area Comment
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Nov 16 2016
  RSA759144  Piperia elongata Robt. Allen, Reginald Durant 2008-7-19 s.n. Orange Silverado Canyon, Maple Springs Truck Trail, circa 2.3 air miles E of USFS gate. Near small bridge over creek at transistion from asphalt to unpaved road. 904 Comment
  UC1178460  Piperia leptopetala Peter Kamb 1948-6-19 1103 Orange Holy Jim Canyon Santa Ana Mts. 609 Comment
  UCR193349  Piptatherum miliaceum A. C. Sanders 2008-5-28 35438 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Bee Flat at mouth of Limestone Canyon 264 Comment
  RSA695484  Piqueria trinervia James Snow 1928-09 s.n. Orange Santa Ana Comment
  CDA2639  Pistia stratiotes M. Nolan 1981-5-19 Orange Central Park Lake, Huntington Beach. 0 Comment
  RSA699337  Plagiobothrys arizonicus L. C. Hull 1934-3-11 s.n. Orange Ortega Highway. Comment
  RSA732066  Plagiobothrys canescens A. C. Sanders, Fred M. Roberts 2008-3-25 34511 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  POM155843  Plagiobothrys collinus var. californicus L. R. Abrams 1903-4-15 3315 a Orange Buena Park. Comment
  RSA368943  Plagiobothrys collinus var. californicus Albert J. Perkins 1914-3-9 s.n. Orange Laguna Beach Comment
  UCSB48118  Plagiobothrys nothofulvus Roberts, Fred 1982-4-3 Orange Rancho Mission Viejo: Calif. 47; 7.2 km. by road E San Juan Capistrano; 1.3 km NE Viejo Survey Marker 98 Comment
  RSA695839  Plagiobothrys tenellus J. R. Bruff s.n. Orange Modjeska s Home Comment
  JEPS57451  Plantago arenaria L. R. Heckard with T. I. Chuang and R. Bacigalupi 1968-7-16 2045 Orange North of Newport Beach, across U.S. Highway 101 From Huntington State Beach Comment
  JEPS37907  Plantago elongata Alice Eastwood and John Thomas Howell 1937-4-24 3936 Orange Dana Point Comment
  RSA590720  Plantago elongata subsp. pentasperma R. E. Riefner 1994-4-22 94 -337 Orange S 1.5 miles from Moulton Meadows Park, Nyes' Place Ave, Laguna Beach. Comment
  RSA401985A  Plantago erecta Jeannette B. Edge 1934-3-10 18931 Orange Corona del Mar. Gully facing Newport Bay. 30 Comment
  RSA749486  Plantago erecta Fred M. Roberts, Linda Farley 2008-3-28 6815 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
  SD236354  Plantago erecta R. E. Riefner 2006-4-12 06 118 Orange Irvine, north foot of San Joaquin Hills, vicinity of Quail hill, SSW of 405 freeway and Shady Canyon Road. 46 Comment
  UC1607990  Plantago erecta Donald G. Nelson 1935-4-6 227 Orange East San Juan Capistrano & just south of boundary of Cleveland Nat'l Forest in Santa Ana Mts. Comment
  UCR5210  Plantago erecta Barbara T. Gittins, O. F. Clarke 1966-3-19 893 Orange Pacific slope, Irvine Ranch, east of University of California Irvine campus, Newport Beach 91 Comment
  POM201756  Plantago hirtella var. galeottiana L. M. Booth 1932-6-17 1208 Orange Bolsas Marsh. Comment
  CLARK-A1528-3428  Plantago indica John C. Roos 1957-7-29 6657 Orange Newport Beach Comment
  JEPS7123  Plantago lanceolata Lawrence M. Booth 1932-7-18 1266 Orange Costa Mesa Comment
  RSA603370  Plantago major Scott D. White, B. Leatherman 1997-6-12 5334 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
  RSA683234  Plantago major Scott D. White, Matt Carlton 2003-11-20 9870 Orange Santa Ana Mountain foothills; San Juan Creek in San Juan Capistrano; (Dana Point) 24 Comment
  UCSB52420  Plantago major Roberts, Fred; Marsh, K. 1982-10-18 Orange Laguna Beach; east flank of Temple Hill, along east margin of Top of the World School 295 Comment
  RSA698371  Platanus racemosa Minor Warne 1934-03 s.n. Orange Gypsum canyon Comment
  RSA703087  Platanus racemosa Fred M. Roberts, Art Davenport 2003-9-11 6007 Orange Rancho Mission Viejo: Donna O'Neil Land Conservancy, tributary west of Cristianitos Cyn., 1.52 km NNW Sycamore Gate and 250 m W of Cristianitos Road. 152 Comment
  UCSB48123  Platanus racemosa Roberts, Fred 1981-4-11 Orange Highway 74; 5.2km E San Juan Capistrano, near crossing of San Juan Creek 52 Comment
  RSA722431  Platystemon californicus J. R. Bruff 1927-3-15 2 -S Orange 1 mi. N.E. Country Club. Comment
  CAS-BOT-BC412806  Plecostachys serpyllifolia R. E. Riefner, Jr. 2014-9-27 14 -355 Orange City of Laguna Beach, NE side of Pacific Coast Highway ca. 0.25 mi SE of Aliso Creek, general vicinity of Aliso Beach County Park 13 Comment
  CAS-BOT-BC414242  Plecostachys serpyllifolia R. E. Riefner, Jr. 2007-4-28 07 -188 Orange City of Newport Beach, between Dover Beach and North Star Beach, W side of Polaris Dr., midway between Morning Star Ln. and Evening Star Ln. 6 Comment
  OBI74895  Plecostachys serpyllifolia Unknown 2009-7-18 09 -151 Orange City of Dana Point, beach near Salt Crk, vicinity of Ritz Carlton Resort 3 Comment
  OBI81429  Plecostachys serpyllifolia Unknown 2007-4-28 07 -190 Orange City of Newport Beach, Dover Beach, vicinity of Morning Star Ln. and Polaris Dr. 7 Comment
  RSA0025114  Plecostachys serpyllifolia R. E. Riefner Jr. 2008-7-9 08 -220 Orange City of Laguna Beach, bluff area W. of West St. and Pacific Coast Highway. 5 Comment
  SBBG126057  Plecostachys serpyllifolia R. E. Riefner Jr. 2009-7-18 09 -151 Orange beach near Salt Crk, vicinity of Ritz Carlton Resort; City of Dana Point 2 Comment
  RSA765878  Plecostachys serpyllifolia R. E. Riefner Jr. 2006-7-26 06 -319 Orange City of Irvine, N side of Irvine Blvd. at SR-133 on-ramp. 64 Comment
  RSA766076  Plecostachys serpyllifolia R. E. Riefner Jr. 2004-12-30 04 -681 Orange City of Laguna Beach, vicinity of West St. and Pacific Coast Hwy. 4 Comment
  POM201842  Pluchea odorata L. M. Booth 1932-7-19 1272 Orange Bolsas Marsh. Comment
  RSA528043  Pluchea odorata A. C. Sanders 1990-10-6 10185 Orange Newport Bay, North Star County Beach area on the SW end of the bay, ca. 2 km inland of Hwy 1 1 Comment
  RSA93085  Pluchea odorata F. W. Peirson 1919-11-8 1299 Orange Aliso Creek. 0 Comment
  RSA0027436  Poa annua Fred M. Roberts 2012-7-18 7677 Orange San Joaquin Hills: Newport Beach, Buck Gully, Buck Gully Trail, west end, just east of north terminus of Poppy Street and 2.1 km WNW summit of Pelican Hill. 37 Comment
  RSA697757  Poa annua Margaret Smart 1934-4-23 s.n. Orange Santa Ana. Comment
  IRVC22697  Poa scabrella Fred M. Roberts 1985-5-9 1762 Orange Santa Ana Mountains: Upper McVicker Canyon, 1.8km NE Los Pinos Peak. Peninsular Ranges 1113 Comment
  UCR170301  Poa secunda C. W. Sexton 1973-3-29 s.n. Orange South Coast, Newport Beach; Upper Newport Bay, hillside beside Back Bay Drive 15 Comment
  UCR209369  Poa secunda subsp. secunda Fred M. Roberts, Linda Farley 2008-3-28 6827 Orange Santa Ana Mountains, Upper Weir Canyon, Irvine Ranch Conservancy, 3.3 km east-northeast of Robbers Peak on ridge north of canyon 427 Comment
  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
  RSA791874  Polygala cornuta var. fishiae Robert F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49615 Orange Santa Ana Mountains: along Ortega Highway (74) about 2.5 miles above San Juan Fire Station, lateral ravine tributary to San Juan Canyon Comment
  UCR175446  Polygala cornuta var. fishiae Mark A. Elvin, A. C. Sanders 2005-9-2 4496 Orange Peninsular Ranges, Santa Ana Mtns: Mouth of Lion Canyon, just upstream from Lower San Juan Campground 457 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
  JEPS51306  Polygonum argyrocoleon Lawrence M. Booth 1932-7-25 1317 Orange Santa Ana River; coastal Comment
  CAS-BOT-BC413753  Polygonum argyrocoleon Carl B. Wolf 1932-9-13 4038 Orange Bryant Ranch: North boundary between Flood Control dike & well in S.E.1/4 Sect. 25; about 1300 ft. W. of N.E. corner of S.E.1/4 Sect. 25 T4S R12W 6 Comment
  UCR170138  Polygonum aviculare Jeffrey Ross, R. Zaka 1998-5-2 40 Orange South Coast, North side of San Joaquin Hills; William R. Mason Regional Park, near intersection of Yale Avenue and University Drive 27 Comment
  UCSB48371  Polygonum aviculare Roberts, Fred 1982-5-22 Orange DANA POINT: jct. of Stone Hill and Selva Rds 1.0km ESE Dana Hills High School; 1.7km SW Marco Forster Junior High School 12 Comment
  RSA666101  Polygonum aviculare subsp. aviculare Fred M. Roberts, Michelle Lee 2001-6-4 5485 Orange Rancho Mission Viejo: Chiquita Ridge, 0.3km WNW Median Rancho Survey Marker. PCR Vernal Pool 4. (Canada Gobernadora. 226 Comment
  RSA731907  Polygonum lapathifolium Fred M. Roberts, Sandy Leatherman 2007-11-27 6672 Orange Yorba Linda: Santa Ana Canyon, Santa Ana River wash, S of E La Palma Road near Via Lomas de Yorba Linda, about 0.6 km W Gypsum Cyn. bridge. 113 Comment
  UC536916  Polygonum lapathifolium Lawrence M. Booth 1932-6-28 1221 Orange Bolsas Marsh Comment
  IRVC24465  Polypodium californicum Fred M. Roberts 1986-2-5 2587 Orange Santa Ana mtns: Lower Hot Springs Canyon, 1.1km NNW Juan Rancho Survey Mk Peninsular Ranges 285 Comment
  IRVC3042  Polypodium californicum G. Howard 1965-3-31 HS0571 Orange Silverado Canyon. Santa Ana Mountains Comment
  POM12349  Polypodium californicum P. A. Munz 1921-4-16 171 Orange Laguna Beach. Comment
  RSA699746  Polypodium californicum Fred M. Roberts, D. E. Bramlet 2003-5-15 5873 Orange Rancho Mission Viejo; Donna O Neill Land Conservancy Cristianitos Cyn, 1.41 km SSW Gato Gate and 0.35 km NNW of SDG&E substation. 122 Comment
  UCR190968  Polypodium californicum A. C. Sanders, Fred M. Roberts 2008-4-22 35054 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge c. 1/4 mi. SE of VABM Bee, above Bee Canyon landfill on road from Hicks Canyon Haul Rd. to Limestone Canyon, c. 3.5 miles WSW of Silverado 493 Comment
  IRVC23141  Polypogon interruptus Fred M. Roberts 1985-7-10 2006 Orange Capistrano Beach: San Juan Creek, 0.5km from the ocean, 0.2km N of Pacific Coast Highway. southern coastal 2 Comment
  CLARK-A1528-4839  Polypogon monspeliensis John C. Roos 1949-10-1 4674 Orange Doheney Beach 1-3 Comment
  IRVC14816  Polypogon monspeliensis A. S. Boughey 1968-7-9 399 Orange Upper Santiago Canyon. Santa Ana Mountains Comment
  IRVC25048  Polypogon monspeliensis Fred M. Roberts 1986-8-21 3062 Orange Mission Viejo: English Canyon along English Creek just below Trabuco Road crossing, about 2.4km E El Toro Fire Station. southern coastal 166 Comment
  UCR99548  Polypogon monspeliensis B. G. Pitzer 1996-4-30 2799 B Orange San Joaquin Hills, Crystal Cove State Park, south of City of Irvine on State Hwy 1 (Pacific Coast Hwy) 15 Comment
  RSA710595  Polypogon monspeliensis Mark Elvin 2004-5-2 3416 Orange Southern Coastal, Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7 km (air) NNW of UC Irvine Campus center. 3 Comment
  RSA756311  Polypogon viridis A. C. Sanders, Fred M. Roberts 2008-7-3 35703 Orange Weir Canyon, along Weir Canyon Rd. 1.2 mi. SSE of Walnut Canyon Reservoir, below Upper Blind Canyon Rd. 212 Comment
  CAS-BOT-BC72265  Polystichum imbricans subsp. curtum P. C. Everett 1935-6-19 7230 Orange Santa Ana Mts., main divide motorway, Bear Spring 1219 Comment
  RSA132  Populus X parryi J. T. Howell 1928-2-26 860 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  UCR171019  Populus balsamifera subsp. trichocarpa R. E. Riefner Jr. 2006-4-8 06- 111 Orange South Coast, San Juan Capistrano (city), San Juan Creek at La Novia Ave. 22 Comment
  RSA133  Populus trichocarpa J. T. Howell 1927-7-21 451 Orange Santa Ana River, Rancho Santa Ana. 152 Comment
  SD212718  Populus trichocarpa A. C. Sanders, Fred M. Roberts and Michelle Balk 2006-7-20 33023 Orange Santa Ana Mountains: San Juan Canyon, from Lower San Juan Picnis Area to circa 1 mile downstream, parallel to Highway 74 and near Riverside County line 366 Comment
  JEPS34991  Porophyllum gracile Ethel Rockwell Orange Santa Ana Mts., Trabuco Canyon Comment
  RSA562731  Porophyllum gracile Steve Boyd, Timothy S. Ross 1992-5-19 7447 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
  SD144030  Porophyllum gracile Scott D. White 1997-3-28 4841 Orange Santa Ana Mountains, above Modjeska Canyon. 424 Comment
  UCSB48228  Portulaca oleracea Roberts, Fred 1981-7-7 Orange Rancho Mission Viejo: Calif. Rte. 74, 5.2km ENE San Juan Capistrano by road 100 Comment
  POM6394  Potamogeton nodosus L. T. Street, Williams 1919-5-4 2689 Orange Laguna Lakes. [now Big Laguna Lake, San Diego Co.] Comment
  RSA696918  Pseudognaphalium biolettii Snow 1929-3-11 36 Orange W. of Orange Co. Park Comment
  CAS-BOT-BC300530  Pseudognaphalium leucocephalum R. E. Riefner, Jr. 2011-10-19 11 -147 Orange City of San Juan Capistrano, San Juan Creek, ca. 0.2 mi W of intersection of Paseo Tirador and Calle Arroyo St. 31 Comment
  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
  UCR281887  Pseudognaphalium leucocephalum R. E. Riefner Jr. 2017-8-14 17- 404 Orange South Coast, city of San Juan Capistrano, San Juan Creek. Immediately east of Hwy I-5, north of San Juan Creek Road along San Juan Creek Trail 25 Comment
  RSA791809  Pseudognaphalium leucocephalum R. E. Riefner Jr. 2011-10-19 11 -147 Orange City of San Juan Capistrano, San Juan Creek, ca. 0.2 miles west of intersection of Paseo Tirador and Calle Arroyo St. 31 Comment
  CAS-BOT-BC356984  Pseudognaphalium luteoalbum Scott D. White; Brian Leatherman 1997-6-12 5313 Orange Santa Ana Mtn. foothills. East of San Juan Capistrano: San Juan Creek between Hwy 74 bridge and Mission Vieja site, i.e., ca. 2 to 4 mi E of I-15 / Hwy 74 jtn. 75 Comment
  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
  UCSB52899  Pseudognaphalium stramineum Roberts, Jr., Fred 1983-5-4 Orange Laguna Beach; upper Rancho Laguna Canyon, 1.7 km. SSW Top of the World School; 1.4 km. ENE Cactus Point 200 Comment
  RSA5343  Pseudotsuga macrocarpa B. D. Stark 1933-1-4 4493 Orange Bottom of Claymine Canyon. No. end of Santa Ana Mts. 305 Comment
  SD236118  Pseudotsuga macrocarpa June Latting, F. Shropshire 1972-4-28 Orange Peninsular ranges/Santa Ana Mountains: Silverado Canyon, 6.3 mi from Silverado Forest Station [presumably up canyon from Silverado] at S curve in road 1098 Comment
  UCR144742  Pseudotsuga macrocarpa A. S. Boughey 1965-3-16 75 Orange Santa Ana Mtns., Silverado Canyon Comment
  IRVC27729  Psilocarphus brevissimus var. brevissimus Mark A. Elvin 2004-5-2 3413 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7km (air) NNW UC Irvine campus center. Southern Coastal 3 Comment
  MACF025734  Psilotum nudum C. Eugene Jones 1988-10-31 Orange Grown in CSUF greenhouse complex Comment
  UCR174183  Psoralea orbicularis A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33037 Orange Peninsular Range; Santa Ana Mtns., San Juan Canyon, from Lower San Juan Picnic Area to c. 1 mile downstream, parallel to Hwy 74 and near Riverside Co. line 396 Comment
  RSA198  Pterostegia drymarioides J. T. Howell 1927-6-24 198 Orange Aliso Canyon, Rancho Santa Ana. 274 Comment
  RSA698491  Pterostegia drymarioides Unspecified s.n. Orange Orange County park. Comment
  RSA542462  Pterostegia drymarioides Fred M. Roberts 1987-3-31 3318 Orange Lomas de Santiago: Lomas [Loma] Ridge, Upper Serrano Canyon, east fork, reservoir, 2.2 kilometers SE Bolero Lookout. 406 Comment
  RSA542463  Pterostegia drymarioides Fred M. Roberts 1987-3-27 3279 Orange Canada De Los Alisos: above Canada Rd., 4.5 km NNE El Toro Fire Station. 226 Comment
  JEPS35293  Pulicaria paludosa R. L. Pope 1963-9-23 Orange approx 0.75 mi above Yorba Linda Bridge; Sanat Ana Canyon Comment
  RSA783437  Pulicaria paludosa J. D. Olmsted 1959-9-22 991 Orange Near Sycamore Park along Santa Ana River by junction of industrial waters from the 3 M clay works to the south; 8-9 miles W of Corona; base of north Santa Ana Mts. 137 Comment
  UC2029950  Pulicaria paludosa Steve Boyd, R. E. Riefner 2000-9-13 10307 Orange SANTA ANA MOUNTAINS: Fremont Canyon, about 1.5 air miles west of Oat [a.k.a. Oak] Flat and 1.5 air miles southeast of Claymont clay mine. Comment
  UCR193770  Pulicaria paludosa A. C. Sanders, Fred M. Roberts 2008-7-3 35710 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
  SD136812  Pycnanthemum californicum Steve Boyd, Tim Ross 1994-9-14 8351 Orange Southern Santa Ana Mts., San Mateo Canyon Wilderness Area of the Cleveland Nat Forest, Lucas Canyon Trail at stream crossing Lucas Canyon 310 Comment
  RSA759120  Quercus X morehus Robt. Allen, Richard Newell 2007-6-19 s.n. Orange Upper Silverado Canyon, along Maple Springs Truck Trail, 5.7 road miles up from Maple Springs forest gate, 0.8 road miles down fron junction with Main Divide Truck Trail. Near entrance to short road spur 1311 Comment
  RSA38451  Quercus agrifolia Carl B. Wolf 1944-11-29 11496 Orange West base of Santa Ana Mountains, Orange County Park 183 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
  UCR131878  Quercus agrifolia J. Mallory, V. McCoy 1995-7-3 6454- 96 Orange Santa Ana Mountains: Blind Canyon, c. 0.5 mi. east of confluence with Santiago Canyon, on a W-facing slope. north of Irvine Lake 300 Comment
  RSA702202  Quercus agrifolia var. agrifolia Fred M. Roberts, David E. Bramlet 2003-6-20 5923 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, tributary to Christianitos Cyn, along Back Road, 1.48 km WNW Sycamore Gate. 189 Comment
  IRVC24545  Quercus berberidifolia Fred M. Roberts, R. L. Allen 1985-8-19 2138 Orange Mission Viejo: lateral to Engilish Canyon along Vista de Lago Drive; 3.4km ENE El Toro Fire Station. Southern Coastal 218 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
  RSA588844  Quercus berberidifolia Fred M. Roberts 1989-11-7 4453 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
  RSA7679  Quercus berberidifolia Carl B. Wolf 1933-11-8 5537 Orange Trabuco Canyon along the Trabuco Truck trail Canyon. 915 Comment
  UCD166560  Quercus berberidifolia Dylan O. Burge 2016-2-23 2089 Orange Santa Ana Mountains, vicinity of Blue Jay Campgroundm along spur off of Long Canyon Road. 1060 Comment
  UCR193768  Quercus berberidifolia A. C. Sanders, Fred M. Roberts 2008-7-3 35678 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor 415 Comment
  UCR208107  Quercus berberidifolia D. E. Bramlet 2000-4-13 2980 Orange Penninsular Ranges: Santa Ana Mountains, upper east Blind Canyon; 30 m south of the Blind Canyon access road and beneath SCE transmission lines; 854 m northwest of the Fremont Canon ridge road Comment
  RSA0059077  Quercus berberidifolia CNPS Accuracy Assessment Team 2014-7-19 461 B Orange Laguna Coast Wilderness Park. Comment
  RSA0105422  Quercus berberidifolia Keith E. Hoffmaster 1930-1 406 Orange Santa Ana Mts. Comment
  IRVC20499  Quercus chrysolepis Fred M. Roberts 1983-11-4 1147 Orange Upper Trabuco Canyon; 1.2km NE Los Pinos Peak; 3.5km SSE Trabuco Peak Santa Ana Mountains 1320 Comment
  RSA0013860  Quercus dumosa Fred M. Roberts 2012-5-10 7560 Orange San Joaquin Hills: Buck Gully, S Fork, north slope Pelican Hill, 0.6 km N summit Pelican Hill, north of Pelican Hill Drive. 183 Comment
  IRVC23279  Quercus engelmannii Karlin G. Marsh 1987-4-20 s.n. Orange Casper's Regional Park; Lucas Canyon near park boundary; canyon bottom. Southern Coastal Comment
  RSA684302  Quercus engelmannii Fred M. Roberts, David E. Bramlet. 2003-3-13 5596 Orange Donna O'Neill Land Conservancy: Shady Cyn. tributary to Cristianitos Canyon, 1,200m NW Sycamore Gate and 914m W Cristianitos Rd. 177 Comment
  RSA684303  Quercus engelmannii Fred M. Roberts, David E. Bramlet 2003-3-13 5597 Orange Donna O'Neill Land Conservancy: Shady Cyn. tributary to Cristianitos Canyon, 1,200m NW Sycamore Gate and 914m W Cristianitos Rd. 177 Comment
  IRVC25113  Quercus wislizeni var. frutescens Fred M. Roberts, Gordon A. Marsh 1986-8-27 3093 Orange Santiago Peak; 0.2km SSW summit Santa Ana Mountains 1695 Comment
  JEPS55026  Ranunculus californicus Alice King 1908-3-9 Orange South Main Street Santa Ana Comment
  RSA542415  Ranunculus hebecarpus Fred M. Roberts, Karlin G. Marsh 1987-5-14 3447 Orange Upper Trabuco Canyon, Trabuco Canyon Trail, 2 km NNW Los Pinos Peak 856 Comment
  CDA3882  Reseda alba Johnson 1939-4-1 Orange Los Angeles - Garden Grove. 0 Comment
  RSA698606  Rhamnus californica Unspecified s.n. Orange Arch Beach. Comment
  CAS-BOT-BC56024  Rhamnus ilicifolia John Thomas Howell 1927-7-24 2824 Orange Sandy floor of Claymine Canyon, n. end of Santa Ana Mts. 152 Comment
  CAS-BOT-BC56033  Rhamnus ilicifolia P. C. Everett 1936-9-19 8269 Orange Santa Ana Mts., Silverado Canyon, in vicinity of Forest Service Gate at base of road 762 Comment
  CAS-BOT-BC56036  Rhamnus ilicifolia C. B. Wolf 1931-3-6 1845 Orange 1/2 mile above Trabuco Oaks, Trabuco Canyon, west slope of the Santa Ana Mts. 457 Comment
  CAS-BOT-BC56039  Rhamnus ilicifolia C. B. Wolf 1931-3-6 1845 Orange 1/2 mile above Trabuco Oaks, Trabuco Canyon, west slope of the Santa Ana Mts. 457 Comment
  POM243762  Rhamnus ilicifolia Percy C. Everett 1935-6-19 7242 Orange Trabuco Canyon, 2 mi. below forest service patrol station 366 Comment
  POM246501  Rhamnus ilicifolia Carl B. Wolf 1933-11-3 5531 Orange Silverado Canyon at base of Silverado motorway. Upper Sonoran. 732 Comment
  RSA17465  Rhamnus ilicifolia Percy C. Everett 1936-9-19 8269 Orange Silverado Canyon, in vicinity of forest service gate at base of road. 762 Comment
  RSA650880  Rhamnus ilicifolia Jack D. Ingwersen 1962-5-2 s.n. Orange Anaheim Comment
  RSA702690  Rhamnus ilicifolia Scott D. White, Michael Honer 2004-5-17 10392 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
  UC1121877  Rhamnus ilicifolia A. Lewis Mar 1934 338 Orange Santa Ana Canyon Corona Quad. 152 Comment
  SD247722  Rhamnus ilicifolia R. F. Thorne, C. W. Tilforth, E. W. Lathrop. 1977-4-27 497703 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  UCSB48075  Rhamnus ilicifolia Roberts, Fred 1981-4-11 Orange Santa Ana Mtns., San Juan Canyon, Hwy 74, 2.4km ENE San Juan Guard Station; 0.3km W Bench Mark 1100 315 Comment
  UC592700  Rhamnus tomentella subsp. cuspidata Carl B. Wolf 1935-6-18 Orange Summit of Santiago Pk. Santa Ana Mts. 1731 Comment
  UC592835  Rhamnus tomentella subsp. cuspidata Carl B. Wolf 1933-8-24 Orange Summit of Santiago Pk. Santa Ana Mts. 1731 Comment
  CAS-BOT-BC170430  Rhus Mark A. Elvin 2007-4-28 5448 Orange Irvine, UCI Arboretum, UCI North Campus near intersection of Jamboree Blvd. and Campus Dr. - Southern Coastal 15 Comment
  CAS-BOT-BC167874  Rhus integrifolia Ira L. Wiggins 1966-2-25 20474 Orange Firestone Boy Scout Reservation in hills E. of Brea Comment
  CAS-BOT-BC167877  Rhus integrifolia T. B. Salvato 2010-10-27 5136 Orange South Coast: Dana Point Headlands, Hilltop Park, north of Scenic Dr. and west of Green Lantern St., overlooking Dana Point Harbor 84 Comment
  CAS-BOT-BC167922  Rhus integrifolia C. B. Wolf 1931-3-6 1857 Orange 1 1/2 miles below Trabuco Camp Ground, Trabuco Canyon, west slope Santa Ana Mts. 548 Comment
  POM201922  Rhus integrifolia L. M. Booth 1932-5-26 1119 Orange Newport Bay. Comment
  RSA386362  Rhus integrifolia Albert J. Perkins 1923-6-28 s.n. Orange Negre Canon Beach, Santa Ana. Comment
Read comments
Nov 1 2013
  RSA748165  Rhus integrifolia K. M. Meyer, A. Townesmith, T. Scott 2007-3-10 8 Orange Cleveland National Forest, 3 mi. N of Main Divide Rd./NF3S04, off Hwy. 74. 950 Comment
  LA62870  Rhus ovata C. B. Wolf; 1931-3-6 1857 Orange Santa Ana Mountains, Trabuco Canyon, 1.5 mi. below Trabuco Camp Ground Comment
  RSA184094  Rhus ovata I. L. Wiggins 1966-3-22 20551 Orange Hillside at end of pavement, Silverado Canyon, about 5 mi. above Ranger Station, Cleveland National Forest. Comment
  OBI20443  Rhus ovata Elisabeth Norland 1941-11-5 11185 Orange Nursery Lahthouse in falt 732 Comment
  RSA648661  Ribes californicum var. hesperium R. E. Riefner Jr. 2000-8-8 20 -720 Orange NCCP North Ranch Policy Plan Area. NE property; E slope of upper Fremont Cyn.; S of Donaldson Ranch area and S of powerline / National Forest boundary. 454 Comment
  RSA16346  Ribes indecorum Percy C. Everett 1935-6-18 7187 Orange Santa Ana Mts., Main Divide Motorway to Santiago Pk., 1 mi. from Ortega Highway. 732 Comment
  RSA1703  Ribes indecorum Carl B. Wolf 1931-3-6 1834 Orange Trabuco Canyon Road, 1.25 miles below Trabuco Oaks. 305 Comment
  RSA5409  Ribes indecorum Carl B. Wolf 1932-12-19 4440 Orange Main divide of Santa Ana Mts. between Sierra Peak and Skyline Drive. 762 Comment
  RSA0021664  Ribes malvaceum Keith E. Hoffmaster 1931-1-18 518 Orange Santa Ana Mts. Comment
  UCSB52466  Ribes malvaceum var. viridifolium Roberts, Fred; Steele, K. 1982-12-26 Orange South Laguna: Niguel Hill; near end of Sea Island Dr; 1.9km SE Aliso Peak; 1.2km E Bench Mark 133 210 Comment
  CAS-BOT-BC173741  Ribes speciosum James R. Shevock 1978-4-26 5902 Orange Along FS road 3S04 between Beeks Place and Black Star Canyon Road. Santa Ana Mountains, Cleveland National Forest 914 Comment
  UCR151029  Ribes speciosum Scott D. White 1997-5-6 5038 Orange Peninsular Ranges; Santa Ana Mtns., Lomas de Santiago; Santiago Canyon area; unnamed tributary to Santiago Creek flowing from the SW, directly west of Pancho Canyon 396 Comment
  UCR98233  Ribes speciosum B. G. Pitzer 1997-4-15 3134 Orange San Joaquin Hills, Crystal Cove State Park, north of the N end of the City of Laguna Beach. Along Moro Canyon Trail, from beginning to a point c. 1.75 mi. up the canyon. 49 Comment
  CHSC26237  Ricinus communis E. Bushey 1968-5-15 51 Orange San Juan Canyon Rd. 304 Comment
  IRVC9188  Ricinus communis R. Yarnell 1966-3-4 53 Orange hills near jct. of Newport Blvd. and Riverside Hwy [Fwy?], Anaheim? Comment
  UCSB50642  Ricinus communis Roberts, Fred; Allen, R. 1982-7-4 Orange Chino Hills; Carbon Canyon, Carbon Canyon Rd., 6.6 km. SW county line by road; 5.2 km. W Gilman Peak 150 Comment
  POM50334  Romneya coulteri L. R. Abrams 1901-06 1852 Orange Trabuco Canyon Comment
  RSA2097  Romneya coulteri B. D. Stark 1931-5-18 2054 Orange Santa Ana River bottom, SW of Ranch Houses, Rancho Santa Ana. 122 Comment
  RSA649681  Romneya coulteri R. E. Riefner 2000-7-6 20 -615 Orange NCCP North Ranch Policy Plan Area. NE property; along powerline SE of upper Fremont Cyn. 605 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
  UC1018189  Romneya coulteri J. Warren 1952-5-23 Orange Santa Ana Canon 457 Comment
  UC1607972  Romneya coulteri Donald G. Nelson 1936-6-13 435 Orange E of Anaheim on S Placentia Ave. Comment
  UCR203896  Romneya coulteri R. E. Riefner Jr. 2008-3-20 08- 106 Orange Santa Ana Mountains, Irvine Ranch Reserve, Fremont Canyon Conservation Easement, west fork Fremont Canyon, south Donaldson Ranch area 380 Comment
  UCR5669  Romneya trichocalyx Kenneth Hibberd 1966-5-8 660508- 01 Orange El Toro Rd. 3 mi. east of El Toro. 213 Comment
  POM144067  Rorippa curvisiliqua L. R. Abrams 1901-06 1768 Orange Laguna - Lake Comment
  POM48285  Rorippa curvisiliqua I. M. Johnston 1924-7-10 s.n. Orange Laguna Canyon. Comment
  JEPS53807  Rorippa nasturtium-aquaticum Alice King 1908-1 Orange Santa Ana Comment
  RSA703026  Rorippa palustris subsp. occidentalis R. E. Riefner Jr. 2004-8-27 4 -393 Orange City of Irvine, San Diego Creek at 405 freeway. 50 Comment
  JEPS47230  Rosa L. M. Booth 1932-6-7 1161 Orange Newport Bay Comment
  RSA682754  Rubus ursinus Scott D. White, Amanda Duchardt 2003-3-27 8848 Orange Santa Ana Mountain Foothills: Canyon bottom and west facing slopes above Canada Gobernadora. 91 Comment
  VVC457  Rubus ursinus F. Ambrey 1959-5-4 s.n. Orange Santa Ana Mtns., 0.8 mi W of pavement end in Silverado Cyn. 649 Comment
  RSA734631  Rumex conglomeratus A. C. Sanders, T. B. Salvato 2008-5-13 35362 Orange Lomas de Santiago, Santiago Canyon above (S of) mouth of Hangman Tree Canyon, just below Modjeska Canyon confluence 366 Comment
  UC536918  Rumex conglomeratus Lawrence M. Booth 1932-6-9 1178 Orange 1 mi from ocean Santa Ana River Canal Comment
  UCSB50644  Rumex conglomeratus 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
  JEPS39877  Rumex crispus Lawrence M. Booth 1932-5-12 1051 Orange Newport Bay Comment
  UC1292604  Rumex crispus C. L. Hitchcock and C. V. Muhlick 1964-3-17 23072 Orange 8 mi e Yorba Linda; Santa Ana Canyon Comment
  UC205909  Rumex maritimus D. L. Crawford 1916-7-26 Orange Laguna Canyon Laguna Beach Region Comment
  CAS-BOT-BC434975  Rumex obtusifolius A. C. Sanders; Fred M. Roberts 2008-7-7 36004 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon at powerline crossing, 1.0 mi. (air) SSE of Walnut Canyon Reservoir. 226 Comment
  RSA0037201  Rumex obtusifolius A. C. Sanders, Fred M. Roberts 2008-7-7 36004 Orange Santa Ana Mtns: Weir Canyon at powerline crossing, 1.0 mi. (air) SSE of Walnut Canyon Reservoir. 226 Comment
  UCR250322  Rumex obtusifolius A. C. Sanders, Fred M. Roberts 2008-8-7 36004 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon at powerline crossing, 1.0 mi. (air) SSE of Walnut Canyon Reservoir 226 Comment
  RSA0013954  Rumex salicifolius Fred M. Roberts 2008-5-7 6941 Orange Lomas de Santiago: Loma Ridge, Limestone Ridge between Dripping Spr. and Limestone Cyn., 3.5 km NW Bolero Lookout and 1.7 km E Bee Peak. Irvine Ranch Conservancy. 481 Comment
  UCR258623  Rumex stenophyllus Fred M. Roberts 2014-7-25 7884 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
  RSA539402  Rupertia physodes Fred M. Roberts, Carol A. Roberts 1988-6-2 4045 Orange Santa Ana Mtns: Maple Springs Truck Trail, 11.5km above Silverado Gate, 1.1km NNW Modjeska Pk. 1350 Comment
  RSA0028511  Rupertia physodes N. C. Cooper 1944-6-4 1352 Orange San Juan Canyon, lower camp ground. 457 Comment
  SEINET5471003 Image available Ruppia maritima James Henrickson 1970-7-24 5023 Orange 3 mi. NW of Huntington Beach- Inner Bolsa Bay- froming very dense stand along margins of bay. Comment
  UCR141344  Sagina decumbens subsp. occidentalis Robert DeRuff 1997-1 440 Orange Southern Coast, Newport Beach, Upper Newport Back Bay, bluff top south of San Joaquin Hills Road and N of Newporter Canyon 30 Comment
  SEINET11941003  Salicornia bigelovii P. H. Raven 1958-1 13561 Orange Salt marsh just N of Surfside Comment
  UCD99133  Salicornia pacifica A. C. Sanders 1990-10-6 10205 Orange Newport Bay, North Star County Beach area on the SW end of the bay, 2 km inland of Hwy. 1. 1 Comment
  UCR112761  Salicornia subterminalis A. C. Sanders, D. Malueg, K. D. Jones 2000-4-19 23340 Orange Pacific Coast, Bolsa Chica Lagoon, along dirt roads in oil field, east of Hwy 1, east of Bolsa Chica St. 11 Comment
  POM122354  Salicornia virginica Marcus E. Jones 1924-8-26 s.n. Orange Newport. Comment
  RSA478898  Salicornia virginica F. R. Fosberg 1930-7-10 S 3983 Orange Anaheim Landing. [Los Angeles Co. on label] 1 Comment
  RSA70036  Salicornia virginica F. W. Peirson 1924-8-29 5069 Orange roadside 4 miles south of Santa Ana. Comment
  UC1929632  Salicornia virginica Valerie Soza, Kevin Clark, LeRoy Gross, Will Miller, Fred Roberts, Gary Wallace 2001-4-4 1101 Orange Seal Beach National Wildlife Refuge; Seal Beach U. S. Naval Weapons Station, across access road from Nature Center (Bldg 226). 3 Comment
  CAS-BOT-BC129735  Salix bonplandiana Helen D. Geis 1902-1-1 552 Orange Santa Ana Comment
  CAS-BOT-BC129738  Salix bonplandiana Carl B. Wolf 1932-4-8 2949 Orange Rancho Santa Ana, near Santa ana River, Santa Ana Canyon 120 Comment
  JEPS14863  Salix exigua John P. Harrington 1932-6-29 3 Orange San Juan Capistrano Comment
  RSA0042767  Salix exigua Fred M. Roberts 2012-7-18 7675 Orange SAN JOAQUIN HILLS: Newport Beach, Buck Gully, Buck Gully Trail, west end, just east of north terminus of Poppy Street and 2.1 km WNW summit of Pelican Hill. 37 Comment
  RSA4496  Salix exigua Carl B. Wolf 1932-3-16 2714 Orange Santa Ana River bottom, Rancho Santa Ana (between pear and walnut groves). 122 Comment
  RSA542353  Salix exigua Fred M. Roberts Jr., Gordon Marsh 1987-8-31 3602 Orange Santa Ana River: adjacent to Santa Ana, 0.5 km NE 17th St. bridge. 27 Comment
  RSA5779  Salix exigua Carl B. Wolf 1932-7-7 3845 Orange Bixby Ave., 0.7 mile W of Hansen road (0.2 mile W of SE corner of NE/4 of NW/4). 8 Comment
  SBBG58935  Salix exigua var. hindsiana C. B. Wolf 1932-4-15 2953 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Cyn 120 Comment
  UC492353  Salix exigua var. hindsiana Carl B. Wolf 1932-4-15 2954 Orange near Santa Ana R. Rancho Santa Ana (along river s of pear orchard); Santa Ana Canyon 120 Comment
  CAS-BOT-BC108141  Salix gooddingii H. D. Geis 1902-1-1 533 Orange Santa Ana Comment
  CAS-BOT-BC108143  Salix gooddingii L. R. Abrams 1913-7-14 5005 Orange Santa Ana River Bridge near Orange Comment
  CAS-BOT-BC6083  Salix gooddingii LeRoy Abrams 1903-4-16 3256 Orange Santa Ana River between Fullerton and Orange Comment
  RSA366296  Salix gooddingii Fred M. Roberts Jr. 1985-6-12 1906 Orange Irvine: W.R. Mason Regional Park, Culver, 0.2km S University Dr.; 1.7km NE UC Irvine. 17 Comment
  RSA542354  Salix gooddingii Fred M. Roberts Jr., Gordon Marsh 1987-8-31 3603 Orange Santa Ana River: adjacent to Santa Ana, 0.5 km NE 17th St. bridge. 27 Comment
  RSA587881  Salix gooddingii Fred M. Roberts 1990-5-8 4618 Orange Chino Hills: Soquel Canyon, c.a. 1.2 km NNW Gilman Peak. Comment
  UC846812  Salix gooddingii L. R. Abrams 1913-7-14 5005 Orange Santa Ana R. Bridge near Orange (Type Station) Comment
  UCR185530  Salix gooddingii Robert DeRuff 2001-4-10 s.n. Orange South Coast, Newport Back Bay, North Star Beach 3 Comment
Read comments
Jun 21 2008
  PASA2678  Salix hindsiana var. leucodendroides Carl B. Wolf 1932-7-7 3843 Orange Rancho Santa Ana, along ditch on Bixby Ave., 1 km. west of Hansen Rd., near town of Los Alamitos. 7.5 Comment
  SD1032  Salix laevigata Carl B. Wolf 1932-4-8 2949 Orange Rancho Santa Ane, near Santa Ana River, Santa Ana Canyon 120 Comment
  UC492485  Salix laevigata Carl B. Wolf 1932-4-8 2949 Orange near Santa Ana River, at s.e corner of pear orchard Rancho Santa Ana; Santa Ana Canyon, Rancho Santa Ana 120 Comment
  UC506445  Salix laevigata Carl Hedin and Joseph Ewan 1933-3-19 7686 Orange Comment
  UCR239909  Salix laevigata 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
  JEPS13843  Salix lasiolepis Alice King Feb., 1908 Orange Santa Ana River Comment
  UC498103  Salix lasiolepis L. M. Booth 1932-12-1 1384 Orange Santa Ana River; near mouth, about 3/4 mi from ocean Comment
  UCR237825  Salix lasiolepis Mark A. Elvin 2003-2-2 2279 Orange South Coast, San Joaquin Marsh, UCI campus SSE of intersection of Jamboree Blvd. and Campus Dr. 2 Comment
  UCR26634  Salix lasiolepis E. W. Lathrop 1966-3-23 6101 Orange Santa Ana Mtns, Cleveland National Forest, Trabuco District. 4 mi. NE of Lake Irvine, Black Star Canyon Comment
  SEINET4094138  Salix lasiolepis E. D. Crow 1929-1 257 Orange Santa Anna Mountains. Southern California. Comment
  CAS-BOT-BC128461  Salix lasiolepis var. lasiolepis Marcus E. Jones 1930-3-3 25527 Orange Santa Ana Mountains Comment
  UCR179757  Salix lucida subsp. lasiandra R. E. Riefner Jr. 2006-10-4 06- 475 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lake Forest, Aliso Creek near Portola Parkway at El Toro Rd. 225 Comment
  RSA765880  Salix lucida subsp. lasiandra R. E. Riefner Jr. 2009-11-9 09 -243 Orange City of Yorba Linda, Santa Ana Canyon, Santa Ana River bottom, E of Weir Canyon Rd., between Horseshoe Bend and vicinity of La Palma Ave. and Mercado del Rio. 102 Comment
  SEINET4466838 Image available Salix nigra var. vallicola L. R. Abrams 1903-1 3256 Orange Comment
  RSA735359  Salix sessilifolia Keith E. Hoffmaster 1935-2-17 843 Orange Near Costa Mesa Comment
  RSA696279  Salsola kali var. tenuifolia Keith E. Hoffmaster 1927-5-30 s.n. Orange Santa Ana. Comment
  RSA728672  Salsola tragus R. E. Riefner 2007-1-20 7 -16 Orange City of Lake Forest, along Bake Pwky. at Dimension Rd. 217 Comment
  UC1124781  Salvia A. Lewis Apr 1934 392 Orange San Joaquin Hills; Corona Quad. 213 Comment
  UCLA55658  Salvia C. Epling and H. Lewis 1940-4-21 Orange 6 mi e San Juan Capistrano Comment
  RSA411335  Salvia apiana F. R. Fosberg 1931-6-21 S 5092 Orange Lower Santiago Canyon. Comment
  HSC14342  Salvia columbariae J. W. Johnson 1961-3-29 Orange Newport Beach, N slope overlooking upper Newport Bay Comment
  RSA542482  Salvia columbariae Fred M. Roberts, Teresa Sholars 1988-3-29 3881 Orange Santa Ana Mountains: Hot Springs Canyon, 0.5 km by road north Hwy 74, 0.9 km ESE Juan Rancho Survey Marker. 223 Comment
  CAS-BOT-BC233675  Salvia leucophylla H. F. Copeland 1938-6-28 s.n. Orange Hills back of Laguna Beach Comment
  RSA651802  Salvia leucophylla Shlomo Gat 1959-5-12 34 Orange Carbon Canyon. Comment
  RSA666  Salvia leucophylla J. T. Howell 1927-6-8 60 Orange Botany Garden, Rancho Santa Ana. [original location] 152 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-BC229997  Salvia mellifera Marcus E. Jones 1926-3-10 s.n. Orange Near Santa Ana Canon [Canyon] Comment
  RSA0126622  Salvia mellifera Fred M. Roberts 2012-4-24 7502 Orange San Joaquin Hills: Buck Gully, W of intersection of Ridge Park Road and Newport Coast Drive, 1.5 km W Signal Peak. 179 Comment
  SD232708  Salvia mellifera Mallory, McCoy 1995-6-30 Orange S-facing slope in chaparral on Windy Ridge, approx. 2.5 mi. S of 91 frwy, within footprint of the Eastern Transportation Corridor. Comment
  CLARK-A1528-589  Salvia spathacea Danny Sall 1970-4-25 3 Orange Silverado Canyon Comment
  CSUSB696  Sambucus mexicana Cesareo Perez 1971-5-4 Orange South Mesa Drive and Lemon Street in Villa Park Comment
  POM213050  Sambucus mexicana C. B. Wolf 1934-9-21 6140 Orange Silverado Canyon, west slope of Santa Ana Mountains, 3/4 mi. below foot of Silverado Motorway. 549 Comment
  RSA650821  Sambucus mexicana Daniel Truong 1991-5-13 6 Orange Irvine Regional Park, left field adjacent to main entrance, within 1/4 mile radius of 'closed area' Comment
  UC527395  Sambucus mexicana C. B. Wolf 1931-7-25 2293 Orange above irrigation canal (just n of Mexican houses); Rancho Santa Ana, Santa Ana Canyon 121 Comment
  UCR159777  Sambucus mexicana Peter A. Bowler 2003-4-26 s.n. Orange Southern Coastal, UC San Joaquin Freshwater Marsh Reserve; along marsh road 6 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
  CAS-BOT-BC238824  Sambucus nigra subsp. caerulea Peter A. Bowler 2003-4-26 s.n. Orange Southern Coastal: UC San Joaquin Freshwater Marsh Reserve 6 Comment
  CAS-BOT-BC238827  Sambucus nigra subsp. caerulea Carl B. Wolf 1934-9-21 6140 Orange Silverado Canyon, west slope of Santa Ana Mts., 3/4 mi. below foot of Silverado Motorway 548 Comment
  UCD137210  Sambucus nigra subsp. caerulea Ronni Stachelek; Bob Anderson, Frances Schropshire 1995-3-1 41 Orange Newport Beach, West side Upper Newport Bay adjacent to Santa Ana Delhi Channel, ca. 100 m west of footbridge. Comment
  RSA542457  Samolus parviflorus Fred M. Roberts, Kathy Keane 1988-5-25 3987 Orange Ranch Mission Viejo: Lower Canada Chiquita, 2.5 kilometers SSE Medium Rancho Survey Mark. 82 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
  RSA69001  Samolus parviflorus F. W. Peirson 1924-10-19 s.n. Orange Wintersberg Comment
  RSA471418  Sanicula arguta M. B. Dunkle 1933-4-9 3285 Orange Dana Point Comment
  RSA542586  Sanicula arguta Fred M. Roberts 1988-3-15 3867 Orange Rancho Mission Viejo: Central Gabino Canyon, 4.4 km SE Point Rancho Survey Marker. 164 Comment
  RSA747598  Sanicula arguta Fred M. Roberts 2000-5-19 5331 Orange Lomas de Santiago: Loma Ridge, ridge west of Bee Peak above Bee Cyn. landfill, 0.2 km W Bee Peak. 500 Comment
  UCD127918  Sanicula arguta P. B. Kennedy 1924-2-5 s.n. Orange Irvine Range near Santa Ana. Comment
  RSA590944  Sanicula arguta Fred M. Roberts 1991-5-2 4783 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
  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
  UCR222641  Sanicula bipinnatifida D. E. Bramlet 2008-4-28 4247 Orange Peninsular Range; Santa Ana Mtns. Foothills, east fork of upper Weir Canyon, north side of access road, 1.22 km east of the main canyon and 122 m west of the upper boundary of Gypsum Canyon 406 Comment
  RSA625802  Sanicula crassicaulis Scott D. White, Noel Davis 1998-4-24 6341 Orange Santa Ana Mountains foothills. Mission Viejo Area: Aliso Creek watershed, E of El Toro Road, just N of the junction with Valley Vista Way. Large proposed subdivision called Saddleback Meadow. 305 Comment
  UC1377706  Sanicula crassicaulis John Ingram 1960-3-29 264 Orange 2 mi above O'Neill Park (Trabuco Canyon); Trabuco Canyon Comment
  RSA606430  Sanicula crassicaulis Jon E. Keeley 1994-4-5 25263 Orange First year burn, east end of Caspers Park S-7 (Keeley 1994) 215 m. 215 Comment
  IRVC17131  Sanicula crassicaulis var. crassicaulis A. S. Boughey 1968-4-16 231 Orange Santiago Canyon/Lower Modjeska Cyn, Fleming Property. Santa Ana Mountains Comment
  HSC66534  Sanicula graveolens Christopher Davidson 1977-5-18 5606 Orange Santa Ana Mts. Cleveland Nat. Forest. Santiago Peak (on Orange-Riverside Co. line). 1707 Comment
  RSA798601  Sanicula graveolens R. F. Thorne, E. W. Lathrop 1977-5-18 49738 Orange Santa Ana Mountains: summit of Santiago Peak 1733 Comment
  RSA83973  Saxifraga californica F. W. Peirson 1925-4-11 5730 Orange Slope above mill, in Silverado Canyon, Santa Ana Mountains. Comment
  RSA650237  Schinus molle Jack D. Ingwersen 1962-5-15 s.n. Orange Brea 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
  RSA797601  Schoenoplectus Robert F. Thorne 1977-11-21 49998 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs Comment
  RSA0070787  Schoenoplectus acutus CNPS Accuracy Assessment Team 2014-4-30 9268 Orange Peters Canyon Regional Park. Comment
  POM6359  Schoenoplectus americanus Phillip A. Munz, L. T. Street, G. Williams 1919-5-3 2652 Orange Santa Ana River Canyon. Comment
  POM18286  Schoenoplectus californicus I. M. Johnston 1924-7-10 s.n. Orange Laguna Canyon. 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
  RSA234484  Schoenoplectus californicus James Henrickson 1970-7-25 5070 Orange 2 miles N of Huntington Beach along NE margin of Bolsa Chica Salt March 0 Comment
  RSA603304  Schoenoplectus californicus Scott D. White, B. Leatherman 1997-6-12 5331 Orange East of San Juan Capistrano: San Juan Creek between Highway 74 bridge and Mission Vieja site, i.e., ca. 2 to 4 mi E of I-15 / Hwy 74 junction. 46 Comment
  RSA697525  Schoenoplectus californicus Minor Warne 1934-5-13 s.n. Orange Talbert Drainage. Comment
  POM202158  Schoenoplectus maritimus L. M. Booth 1932-5-24 1105 Orange Marsh of salt marsh, Newport Lagoon. Comment
  RSA232224  Schoenoplectus maritimus James Henrickson 1970-10-3 5358 Orange 3 miles NE of Huntington Beach just N of Bolsa Chica Salt Marsh. 0 Comment
  RSA539372  Schoenoplectus maritimus P. R. Atsatt 1990-10-13 s.n. Orange Newport Beach: Upper Newport Back Bay, Back Bay Drive, 2.7 kilometers W. UC Irvine campus center. 3 Comment
  IRVC29727  Scirpus americanus Mark A. Elvin, Barry S. Nerhus 2006-11-4 5258 Orange Huntington Beach; 1.5 km SW of Wintersburg, SW of jct Slater and Goldenwest; Shipley Nature Center. Southern Coastal 1 Comment
  RSA797491  Scirpus microcarpus Keith E. Hoffmaster 1927-6-5 24 Orange Near Fairview, no. of Costa Mesa Comment
  RSA732149  Scrophularia californica A. C. Sanders, Fred M. Roberts 2008-4-22 s.n. Orange Lomas de Santiago, lower Hicks Canyon haul road, just above Irvine Ranch gate and road to cement plant, c. 1 mile NE of Rattlesnake Reservoir. 213 Comment
  UCSB52936  Scrophularia californica Roberts, Fred 1984-4-29 Orange Temple Hill above Laguna Cyn. 6,5km SE Signal Peak; 0,6km E BM 104 195 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
  RSA445380  Scutellaria tuberosa Albert J. Perkins 1919-4-13 s.n. Orange Modjeska Ranch. Comment
  POM18122  Selaginella asprella Philip A. Munz 1923-9-7 7744 Orange Santiago Peak in Santa Ana Mountains. 1706 Comment
  RSA85935  Selaginella bigelovii Frank W. Peirson 1923-5-5 3490 Orange Trabuco Canyon, Santa Ana Mountains 518 Comment
  UC534961  Selaginella bigelovii John Thomas Howell 1927-7-22 2834 Orange Claymine Canyon; Santa Ana Mts. 182 Comment
  IRVC22751  Selaginella cinerascens D. Bramlet, W. Wright 1986-5-4 Orange knoll above Segundo Deschecha Canada and west of Christianitos Canyon Rancho Mission Viejo 212 Comment
  RSA697122  Senecio californicus Minor Warne 1934-04 s.n. Orange Laguna Canyon Forks Comment
  UC566656  Senecio californicus H. L. Mason 1926-4-25 2908 Orange five mi s Laguna Comment
  CAS-BOT-BC333069  Senecio flaccidus var. douglasii John Thomas Howell 1927-6-6 2442 Orange Santa Ana River bottom, Santa Ana Canyon 152 Comment
  RSA5429  Senecio flaccidus var. douglasii B. D. Stark 1933-1-3 s.n. Orange Rancho Santa Ana near pear orchard. 122 Comment
  RSA937  Senecio flaccidus var. douglasii J. T. Howell 1927-6-6 43 Orange Santa Ana River bottom, Rancho Santa Ana 152 Comment
  CDA25870  Senecio linearifolius Mark A. Elvin 2003-8-24 3011 Orange Southern Coastal; San Joaquin Hills, Irvine, UCI, 100 m N of the intersection of Shady Canyon Drive and Bonita Canyon Road Comment
  RSA685173  Senecio linearifolius Scott D. White 2003-7-7 9613 Orange Irvine, UC Irvine Campus, directly west of T-intersection of Shady Canyon Cr. w/ Bonita Canyon Dr. (= Culver Dr.); Tustin. 70 Comment
Read comments
Oct 23 2007
  RSA710817  Senecio linearifolius Robert Noll 2003-8-20 s.n. Orange Southern Coastal region: Irvine, UCI campus, near intersection of Culver and Shady Canyon Roads 61 Comment
  SBBG132983  Senecio linearifolius S. D. White, M. Honer 2004-5-17 10401 Orange ridges and open slopes directly N of intersection of Crown Valley Parkway and Pacific Island Dr; City of Laguna Niguel 61 Comment
  UCR130261  Senecio linearifolius Robert Noll 2003-9-15 s.n. Orange Southern Coastal region, Irvine, UCI campus, near intersection of Culver and Shady Canyon Roads 76 Comment
  SD231235  Senecio linearifolius var. linearifolius Scott D. White 2003-7-7 9613 Orange Coastal plain: Irvine. UC Irvine Campus. Directly west of T-intersection of Shady Canyon Cr. w/Bonita Canyon Dr. (=Culver Dr.) 70 Comment
  IRVC904  Senecio vulgaris D. Dixon 1965-3-25 Orange Silverado Canyon. Santa Ana Mountains Comment
  IRVC24726  Senna multiglandulosa Fred M. Roberts 1986-5-14 2824 Orange Lomas de Santiago; Santiago Canyon Rd., 8.5km NW by road of Silverado Canyon Rd., Santa Ana Mountains 229 Comment
  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
  RSA234483  Sesuvium verrucosum James Henrickson 1970-7-24 5004 Orange 3 miles NW of Huntington Beach on sandy ''Rabbit'' Island in Bolsa Chica Salt March near Inner Bolsa Bay. 1 Comment
  SEINET238939 Image available Sesuvium verrucosum A. C. Sanders, D. Malueg; K. D. Jones 2000-1 23334 Orange Pacific Coast: Bolsa Chica Lagoon, along dirt roads in oil field, east of Hwy 1, east of Bolsa Chica St. 0 Comment
  UCSB52902  Sesuvium verrucosum Roberts, Fred 1983-9-29 Orange Irvine; San Joaquin Freshwater Marsh, 1.6 km. NNW UCI campus center 2 Comment
  RSA791872  Setaria parviflora R. F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49619 Orange Santa Ana Mountains: about 1 mile above San Juan Fire Station Comment
  UC729940  Setaria parviflora Carl B. Wolf 1932-6-13 3725 Orange Malvern & Nicholas Aves. Fullerton 53 Comment
  RSA699854  Sherardia arvensis L. C. Hull 1934-4-3 s.n. Orange Yard in S.A. Comment
  RSA17560  Sidalcea neomexicana subsp. thurberi Carl B. Wolf 1936-4-22 7770 Orange East of Los Alamitos, at NW corner of Hansen Rd. and Bryant Ave. 15 Comment
  SEINET3132581  Sidalcea neomexicana subsp. thurberi L. Abrams 1903-4-17 3257 Orange Low Ground Between Tustin & Myford Comment
  IRVC357  Silene gallica B. Newman 1965-3-14 Orange Dana Point Comment
  JEPS50925  Silene gallica L. M. Booth 1932-5-12 1016 Orange Newport Bay Comment
  RSA477883  Silene gallica M. B. Dunkle 1933-4-9 3272 Orange Dana Point. Comment
  RSA749466  Silene gallica Fred M. Roberts 1999-4-22 5186 Orange Lomas de Santiago: tributary to Santiago Creek wash along spur road on ridge between Limestone Cyn. and Santiago Creek wash opposite Williams Cyn., 1.9 km SE Silverado Sch. and 2.2 km NNW Bolero Lookout. 395 Comment
  RSA184079  Silene gallica I. L. Wiggins 1966-5-1 20573 Orange Closely grazed field along south side of Brea Olinda blvd, near Carolina Ave. Comment
  RSA477884  Silene gallica Albert J. Perkins 1921-5-24 s.n. Orange Roadside. Comment
  RSA650328  Silene gallica Diane T. Liggett 1981-5-16 7 Orange Riverside Freeway (91) east to Imperial Hwy, south to Nohl Ranch Road, east to Serrano Ave., south on Hidden Cyn. Road, 1 km into Weir Cyn. Comment
  CAS-BOT-BC174885  Silene laciniata Munz; Street; Williams 1919-5-3 2671 Orange Santa Ana River [Canon] Canyon Comment
  RSA0054829  Silene laciniata Keith E. Hoffmaster 1934-7-15 110 Orange Santa Ana Mts. (Modjeska). Comment
  UCR232770  Silene multinervia Robt. L. Allen, Trisha Smith, Mike Kahle 2006-6-21 s.n. Orange Peninsular Range; Santa Ana Mtns., upper Fremont Canyon, ridge along SE, along unpaved Lakeview Rd. 638 Comment
  RSA599645  Silene multinervia Fred M. Roberts, Carol A. Roberts, Kirsten Winter 1995-5-6 4940 Orange Ridge between Hot Springs Canyon and Viejo Canyon, San Juan Trail, 3.4 km WNW Lower San Picnic ground. 549 Comment
  SEINET7882519 Image available Silybum marianum Jean Coulson 1959-1 s.n. Orange Santa Anna Mts.; 2.1 mi. E. on Esperanz Road from Orangethorpe. On S. side of road. Comment
  RSA16983  Sinapis arvensis Percy C. Everett 1936-3-20 s.n. Orange Rancho Santa Ana Botanic Garden, Santa Ana Canyon. West of Adm. Bldg. 198 Comment
  RSA653212  Sinapis arvensis David Barrios 1991-5-1 9 Orange Yorba Linda, 1500 ft. northwest of Fairmont Ave and Quail Circle. 365 Comment
  IRVC1183  Sisymbrium irio L. McCabe 1965-4-25 Orange Corona del Mar. Newport Beach Comment
  RSA4792  Sisymbrium irio James Snow s.n. Orange The Bryant Ranch, near Long Beach. Station #2, Plant #4. Comment
  RSA792476  Sisymbrium irio Justin M. Wood 2011-2-28 3267 Orange South Coast: Santa Ana River, marsh just upstream of Pacific Coast Highway. Plants collected throughout the marsh and along the adjacent bike path. 0 Comment
  RSA654311  Sisymbrium orientale Caralisa Breidenbaugh, Mark Breidenbaugh 1992-5-24 41 Orange 100 ft Northwest of Chino Hills State Park Boundary. 243 Comment
  IRVC26967  Sisyrinchium bellum Peter A. Bowler 2003-4-20 s.n. Orange UC San Joaquin Freshwater Marsh Reserve; bluffs along NW edge of marsh. Southern Coastal 9 Comment
  RSA0015957  Sisyrinchium bellum Fred M. Roberts 2012-4-24 7536 Orange San Joaquin Hills: Buck Gully, above main trail, 2 km W Signal Peak and about 0.4 km S San Joaquin Hills Road. 155 Comment
  UCR151027  Sisyrinchium bellum Scott D. White 1997-5-6 5039 Orange Peninsular Ranges; Santa Ana Mtns., Lomas de Santiago; Santiago Canyon area; unnamed tributary to Santiago Creek flowing from the SW, directly west of Pancho Canyon 396 Comment
  UCR16603  Sisyrinchium bellum Nancy Robb 1966-4-15 s.n. Orange 3 miles SE of Yorba Linda, 1 mi south of Santa Ana Canyon Road 122 Comment
  UCR191430  Sisyrinchium bellum A. C. Sanders, Fred M. Roberts 2008-4-8 34766 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, SSE of Santiago Reservoir on Loma Ridge Spur Rd., above Dripping Springs Loop Rd. 457 Comment
  UCR228785  Sisyrinchium bellum Dick Newell, Don Millar 2011-5-10 154 Orange Peninsular Range; Santa Ana Mtns., above east side of Fremont Canyon on service road just below Lakeview Rd. 455 Comment
  RSA743381  Solanum americanum Fred M. Roberts 2008-5-27 7000 Orange Dana Point: Dana Point Headlands, CNLM Preserve near NE Gate, 0.5km W Marine Institute (Dana Point Harbor). 75 Comment
  UCR182904  Solanum americanum Pat Akers 2006-3-25 PA7 06 Orange Yorba Linda. Santa Ana River on a large (300-400 ft) sandy/cobbly flat. south of La Palma Dr, 0.6-0.9 mi. east of Yorba Linda Dr 122 Comment
  UCR222871  Solanum americanum T. B. Salvato 2010-10-27 5133 Orange South Coast, Dana Point Headlands, Hilltop Park, north of Scenic Dr. and west of Green Lantern St., overlooking Dana Point Harbor 84 Comment
  RSA549241  Solanum douglasii Scott D. White 1992-9-29 845 -a Orange Vicinity of City of Brea, immediately N of Carbon Canyon Road and E of Placentia Avenue, +/- 1 mi (airline) S/SE of Tonner Canyon. 183 Comment
  UC1125193  Solanum douglasii A. Lewis Mar 1934 337 Orange Santa Ana Canyon 121 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
  RSA23640  Solanum elaeagnifolium E. R. Johnson 1939-4-25 9500 Orange Santa Ana Canyon. Rancho Santa Ana , along Santa Fe R.R. tracks south of Exp. citrus plot. 122 Comment
  RSA2079  Solanum umbelliferum Carl B. Wolf 1931-3-6 1850 Orange Trabuco Canyon, 1.5 mile below Trabuco Camp Grounds, west slope of Santa Ana Mountains. 610 Comment
Read comments
Oct 25 2007
  RSA427452  Solanum umbelliferum F. R. Fosberg 1931-6-21 S- 5079 Orange Lower Santiago Canyon. Comment
  RSA427453  Solanum umbelliferum E. Crow 1929-2-22 169 Orange Gypsum Canyon, Santa Ana Mountains. Near Corona. Comment
  RSA427454  Solanum umbelliferum M. B. Dunkle 1933-5-30 3576 Orange Santa Ana Canyon Comment
  RSA550607  Solanum umbelliferum Fred M. Roberts Jr., Carol A. Roberts 1989-4-20 4307 Orange upper Lion Canyon along San Juan Trail just south of Blue Jay Campground, 2.5 km. SE Los Pinos Peak 980 Comment
  RSA554628  Solanum umbelliferum Scott D. White 1992-10-13 959 Orange Vicinity of city of Brea, immediately N of Carbon Canyon Road and East of Placentia Avenue. +- 1 mile (airline) S/SE of Tonner Canyon. 183 Comment
  RSA0020572  Solanum umbelliferum Keith E. Hoffmaster 1927-4-8 534 Orange Santa Ana Mountains. Comment
  RSA650147  Solanum umbelliferum Shlomo Gat 1959-5-9 31 Orange near La Vida Comment
  RSA0058058  Solanum umbelliferum var. glabrescens Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49672 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. 457 Comment
  UCSB41816  Solanum xanti Rowlands, Peter 1970-2-7 Orange Modjeska Cyn.; 1 mi.up oyn. from Tucker Wildlife Sanctuary on property of Norman FIemming 487 Comment
  UCR232931  Soleirolia soleirolii R. E. Riefner Jr. 2011-7-1 11- 84 Orange South Coast, city of Newport Beach, beach area west of the end of Cameo Shores Road, south c. 1.5 mi from Poppy Avenue 2 Comment
  IRVC15142  Solidago californica A. S. Boughey 1968-7-9 398 Orange Santa Ana mtns: upper Santiago Canyon. Peninsular Ranges Comment
  IRVC21389  Solidago californica A. S. Boughey 1968-7-9 409 Orange Santa Ana mtns: upper Santiago Canyon. Peninsular Ranges Comment
  RSA473634  Solidago californica M. B. Dunkle 1934-6-18 3967 Orange Upper San Juan Canyon 610 Comment
  LA203964  Solidago velutina subsp. californica W. Pequegnat; 1937-9-3 sn Orange Santa Ana Mountains, Santiago Peak Comment
  CAS-BOT-BC365978  Sonchus arvensis E. Johnson 1932-7-1 s.n. Orange Unspecified Comment
  IRVC924  Sonchus oleraceus A. Adams 1965-5-2 Orange Newport Beach, Corona del Mar, Little Corona Beach. Southern Coastal Comment
  RSA799950  Sonchus oleraceus D. M. Ray 2011-1-19 4 Orange South Coast: Santa Ana River: along right of way road just west of Least Tern Island. 0 Comment
  SEINET179461  Sonchus oleraceus Lawrence Booth 1932-6-15 1193 Orange East of Huntington Beach, Marsh border Comment
  UCR26160  Sonchus oleraceus John C. Roos 1949-10-1 4686 Orange South Coast, Doheny Beach 0 Comment
  CAS-BOT-BC374659  Sonchus oleraceus Ira L. Wiggins 1966-3-5 20514 Orange Field about 1/2 mi. W. of El Toro Post Office, along Highway S-18 Comment
  POM201512  Sorghum bicolor L. M. Booth 837 Orange Santa Ana Canyon Comment
  SEINET998621  Sorghum bicolor R. E. Riefner Jr. 2005-1 05 -710 Orange South Coast: Irvine, Irvine Blvd. at The Groves RD. (Tustin 7.5' Q) 84 Comment
  UCSB48122  Sorghum bicolor Roberts, Fred 1981-4-11 Orange Highway 74: 5.2 km E San Juan Capistrano, near San Juan Creek crossing 52 Comment
  IRVC1830  Sorghum halepense I. L. Wiggins 1965-9-26 20 257 Orange Roadside about 1.5mi above the mouth of Carbon Canyon. southern coastal Comment
  SD384  Sorghum halepense none given VII, 1915 Orange Vic. Santa Anna Comment
  SEINET179444 Image available Sorghum halepense L. M. Booth 1932-7-18 1265 Orange Costa Mesa. 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
  RSA582098  Spartina foliosa Joseph A. Ewan 1932-7-28 7709 Orange East end of Newport Bay Comment
  SD80955  Spartina foliosa James Henrickson 1970-7-24 5024 Orange 2I(c) miles NW of Huntington Beach along south channel of Inner Bolsa bay, adjacent to Pacific Coast Hy. in Bolsa Chica Salt Marsh Comment
  UC520317  Spartina foliosa Joseph Andorfer Ewan 1932-7-28 7709 Orange e end Newport Bay Comment
  SEINET10602937  Spartina foliosa James S. Henrickson 1970-7-24 Henrickson 5024 Orange 2 1/2miles NW of Huntington Beach along south channel of Inner Bolsa Bay, adjacent to Pacific Coast Hy. in Bolsa Chica Salt Marsh; locally abundant & forming pure stand in stagnant shallow salt water channel margin; to 3ft. high. sea level Comment
  RSA659437  Spartium junceum P. Shirokawa 1998-5-7 13 Orange Cleveland National Forest- Trabuco Ranger District, 0.3 miles from Ortega Highway (State Highway 74) on North Main Divide Road. 808 Comment
  UCR163307  Spergularia B. G. Pitzer 1996-4-30 2791 Orange San Joaquin Hills, Crystal Cove State Park, south of City of Irvine on State Hwy 1 (Pacific Coast Hwy) 15 Comment
  RSA0097855  Spergularia bocconi L. M. Booth 1932-5-24 1095 Orange Newport Bay, Public Golf Course. Comment
  CAS-BOT-BC390858  Spergularia marina Munz; Street; Williams 1919-5-4 2682 Orange Laguna Canon [Canyon] Comment
  RSA292  Spergularia salina J. T. Howell 1927-6-17 161 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA733957  Sphaeralcea fasciculata Keith E. Hoffmaster 1927-5-15 458 Orange Lemon Heights. Comment
  UCR207566  Sporobolus indicus O. F. Clarke 2004-1 s.n. Orange South Coast, Yorba Regional Park, between Yorba Linda and Anaheim Hills 91 Comment
  POM202025  Stachys ajugoides L. M. Booth 1932-6-4 1146 Orange Newport Lagoon. Comment
  SEINET9324867  Stachys ajugoides Unknown 2008-4-8 34752 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago, Loma Ridge, SSE of Santiago Reservoir on Loma Ridge Spur Rd., above Dripping Springs Loop Rd. (El Toro 7.5' topo.). Mountain slopes; clay-loam soil with shale and sandstone chunks; chaparral burned Oct. '07. Comment
  UC421601  Stachys ajugoides var. rigida John Thomas Howell 1927-7-3 2644 Orange Claymine Canyon Santa Ana Mtns Comment
  UC537164  Stachys ajugoides var. rigida Lawrence M. Booth 1932-5-19 1080 Orange Newport Bay Comment
  UCLA70983  Stachys ajugoides var. rigida C. Epling, H. Lewis Jun 1940 Orange near Summit (Ortega Rd.); Santa Ana Comment
  UCSB52461  Stachys rigida Roberts, Fred 1982-5-22 Orange Dana Point; jct. of Stone Hill & Selva rds; 1.0km ESE Dana Hills High School; I.7km SW Marco Forster Junior High School 40 Comment
  POM4078  Stachys rigida subsp. quercetorum P. A. Munz 1918-5-4 2213 Orange Laguna Beach Comment
  RSA446585  Stachys rigida subsp. quercetorum Unspecified 1920-6-1 s.n. Orange Laguna. Comment
  RSA542483  Stachys rigida subsp. quercetorum Fred M. Roberts, R. E. Riefner 1988-7-19 4115 Orange Santa Ana Mountains; Maple Springs Truck Trail, Upper Silverado Canyon, 1.9km N Modjeska Peak. 1128 Comment
  RSA679  Stachys rigida subsp. quercetorum J. T. Howell 1928-4-14 910 Orange Aliso Canyon, Rancho Santa Ana. 229 Comment
  RSA446699  Stachys stebbinsii F. R. Fosberg 1931-6-2 S- 5129 Orange Silverado Canyon, Santa Ana Mountains. Comment
  SEINET9364763  Stachys stebbinsii A. Sanders, Balk, Michelle 2006-7-20 33018 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 (Sitton Peak 7.5' topo.) Canyon bottom; moist rocky sand and flowing water; oak riparian forest with Quercus agrif., Platanus rac., Salix laev., S. las., Baccharis salic., Rubus ur., Vitis gird., Artemisia doug., etc. Comment
  UC1377828  Stebbinsoseris heterocarpa John Ingram 1960-3-29 261 Orange 3 mi above O'Neill Park (Trabuco Canyon); Trabuco Canyon Comment
  CAS-BOT-BC393823  Stellaria media Ira L. Wiggins 1966-2-25 20475 Orange Firestone Boy Scout Reservation, in hills E of Brea 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
  UC484253  Stellaria media C. B. Wolf 1931-3-6 Orange Trabuco Canyon Santa Ana Mts. (Trabuco Camp Grounds, w slope of Santa Ana Mts) 609 Comment
  RSA293  Stellaria media J. T. Howell 1928-2-7 821 Orange Near the ranch houses, Rancho Santa Ana 152 Comment
  UCD86397  Stenotaphrum secundatum Fred M. Reed 1933-9-27 8101 Orange El Toro - Arch Beach. Comment
  UCR150569  Stenotaphrum secundatum Scott D. White, Matt Carlton 2003-11-20 9867 Orange South Coastal Plain, Santa Ana Mtn foothills. San Juan Creek in San Juan Capistrano 24 Comment
  UCR207544  Stenotaphrum secundatum O. F. Clarke, Roger E. Reinke 2004-11-14 s.n. Orange South Coast, Newport Back Bay 3 Comment
  UCR195673  Stephanomeria diegensis A. C. Sanders, Fred M. Roberts 2008-8-7 35995 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
  UCR222876  Stephanomeria diegensis T. B. Salvato 2010-10-27 5129 Orange South Coast, Dana Point Headlands, Hilltop Park, north of Scenic Dr. and west of Green Lantern St., overlooking Dana Point Harbor 84 Comment
  SBBG42893  Stephanomeria diegensis L. D. Gottlieb 1968-8-14 6860 Orange St Hwy 74, immediately W of lower San Juan Cmpgrd 411 Comment
  JEPS36839  Stephanomeria exigua subsp. coronaria L. M. Booth 1932-8-5 1361 Orange Newport Bay Comment
  RSA439  Stillingia linearifolia J. T. Howell 1927-7-5 271 Orange West side, Rancho Santa Ana [Botanic Garden]. 152 Comment
  UCR190994  Stipa coronata A. C. Sanders, Fred M. Roberts 2008-4-22 35006 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
  SD251164  Stipa coronata R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49617 Orange Santa Ana Mountains: about 1 mile above San Juan Fire Station. Dry, rocky bluffs above San Juan Creek Comment
  UCR26655  Stipa lepida E. W. Lathrop 1966-4-18 6179 Orange Santa Ana Mtns., 4 mi NE of Lake Irvine, Black Star Canyon, Cleveland National Forest, Trabuco District Comment
  RSA0048676  Stipa pulchra Keith E. Hoffmaster 1935-3-17 551 Orange Near El Toro (Trabuco Road). Comment
  RSA0113483  Stipa pulchra Lyman Benson 1946-5-13 12100 Orange Bluffs at Corona del Mar. 15 Comment
  IRVC27015  Strumaria truncata A. C. Sanders, Mark A. Elvin 2003-11-9 27357 Orange Irvine: UCI Arboretum, UCI campus near intersection of Jamboree Blvd. and Campus Dr. Southern Coastal 15 Comment
  RSA0104826  Stylocline gnaphaloides J. B. Anderson 1966-4-9 526 Orange San Joaquin Hills: On road between Lindoln School-Signal Peak on near level hilltop. 182 Comment
  RSA957  Stylocline gnaphaloides J. T. Howell 1928-4-15 917 Orange near east bundary of Rancho Santa Ana 213 Comment
  CAS-BOT-BC402192  Styrax redivivus R. F. Thorne; C. W. Tilforth; E. W. Lathrop 1977-4-27 49686 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  RSA171931  Styrax redivivus Robert F. Thorne 1963-7-26 32849 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
  RSA725580  Styrax redivivus Fred M. Roberts, Robert L. Allen, Trish Smith 2007-6-15 6534 Orange Along dirt road on ridge between Fremont and Black Star Cyns., 5.2km ENE Irvine Lake Spillway and 1.7km W Hidden Ranch. 739 Comment
  RSA438605  Suaeda calceoliformis J. Ewan 1931-7-31 4763 Orange Smeltzer Comment
  RSA5866  Suaeda calceoliformis C. B. Wolf 1932-9-13 4020 Orange Bryant Ranch. 3/10 miles W of Los Alamitos Blvd.700 ft. south of Bryant Ave., (800 ft. east & 700 ft. south of NW corner of SW 1/4 sec. 30 T4S R11W) 7 Comment
  POM48004  Suaeda esteroa I. M. Johnston 1924-8-29 s.n. Orange 2.5 miles north of Balboa. Comment
  RSA70019  Suaeda esteroa F. W. Peirson 1924-2-10 4535 Orange Balboa Beach, mainland near bridge Comment
  SEINET770649 Image available Suaeda esteroa J. Henrickson 1970-7-25 5029 Orange 3 1/2 miles NW of Huntington Beach on sandy margin of Bolsa Bay. 1/4 mile SE of Warner Ave. along Pacifico Coast Hwy. Comment
  UCR66367  Suaeda esteroa A. C. Sanders 1990-10-6 10204 Orange Newport Bay, North Star County Beach Area on the SW end of the Bay, c. 2 km inland of Hwy 1. 3 Comment
  CAS-BOT-BC110406  Suaeda taxifolia Allan C. Keller 1937-11-26 s.n. Orange Santa Ana River Bridge west of Newport Beach on U.S. Highway Alternate 101. Comment
  RSA18528  Suaeda taxifolia C. B. Wolf 1927-7-23 669 Orange Along the coast just north of San Clemente. Comment
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Jun 3 2013
  SEINET187082  Suaeda taxifolia Allan C. Keller 1937-11-26 Orange Alt. 20 to 40 ft. on cliffs, Doheny Palisades, Highway 101. Comment
  UCR108435  Suaeda taxifolia L. C. Wheeler 1946-9-28 6383 Orange Newport Bay, Newport Bay 5 Comment
  UCSB48081  Suaeda taxifolia<