Search Results — 2000 specimen records retrieved (1604 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/consortium/).
 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
  RSA460929  Abronia maritima N. C. Cooper 1942-11-9 888 Orange Balboa Comment
  RSA234508  Abronia umbellata James Henrickson 1970-7-24 5008 Orange 3 miles NW of Huntington Beach on sandy ''Rabbit'' Island in Bolsa Chica Salt March near Inner Bolsa Bay. 1 Comment
  RSA461004  Abronia umbellata William Greenberg 1939-7-20 20519 Orange Newport Beach Comment
  JEPS61217  Abronia umbellata var. umbellata L. M. Booth 1932-5-25 1113 Orange Balboa Island; Newport Bay Comment
  SEINET7067537  Abronia villosa A. G. Vestal 1947-6-12 s.n. Orange Santa Ana River Wash northwest of Orange. Coordinate datum: NAD27. UTM Zone 11, 418667mE, 3739612mN. Comment
  RSA13158  Abronia villosa var. aurita Percy C. Everett 1935-6-28 7260 Orange 0.8 miles east of Atwood S side of RR tracks 107 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
  UCR186429  Acacia redolens Robert DeRuff 1996-3-14 497 Orange Southern Coast, Newport Beach, Newport Back Bay, Big Canyon 3 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
  HSC79051  Acalypha californica Steve Boyd, L. F. LaPre 1981-5-27 Orange N end of the Santa Ana Mtns., along powerline road on ridges E of Weir Canyon and at the head of Gypsum Canyon Comment
  RSA548854  Achnatherum coronatum Fred M. Roberts, G. A. Marsh 1986-5-16 2859 Orange Upper Lucas Canyon watershed, Sitton Peak Truck Trail, 3km WSW Sitton Peak 730 Comment
  RSA734282  Achnatherum coronatum A. C. Sanders, Linda Farley, Fred M. Roberts, David E. Bramlet 2008-4-1 34645 Orange Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 250 Comment
  RSA734601  Achnatherum coronatum A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35310 Orange Weir Canyon, along fire line/bulldozer cut, c. 1.5 mi. east of Walnut Cyn Reservoir 346 Comment
  SBBG103893  Acmispon americanus B. Pitzer, S. Hemstreet 1992-5-27 1966 Orange USFS Rd 3S04 to Blue Jay Group Cmpgrd, off St Hwy 74, ca. 2 air mi W of El Cariso Cmpgrd 762 Comment
  SD152854  Acmispon wrangelianus Steve Boyd, Tim Ross 1992-5-20 7485 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area, western edge of the wilderness in Lucas Canyon at the Lucas Canyon Trail crossing, on hard-packed soil along trail, north side of creek just downstream from crossing 320 Comment
  SEINET2429609  Acourtia microcephala Lawrence M. Booth 1932-7-4 1243 Orange Newport Lagoon Comment
  CAS-BOT-BC308928  Acroptilon repens Scott D. White 1997-3-26 4818 Orange University of California Irvine Campus, site of proposed student recreation center, east of main campus. Existing Farm School between California Avenue and Culver Drive 30 Comment
  LA31221  Adenostoma fasciculatum David S. Verity; 1960-2-14 sn Orange one small area on ridge near summit of Temple Hills Dr. on E. slope of ridge, San Juaquin Hills behind Laguna Beach Comment
  RSA0027783  Adenostoma fasciculatum Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49680 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak] 457 Comment
  RSA598917  Adenostoma fasciculatum var. fasciculatum Scott D. White 1997-3-28 4848 Orange Above Modjeska Canyon, proposed water tank site. 425 Comment
  RSA658199  Adenostoma fasciculatum var. fasciculatum T. A. Daubert 1991-5-19 653 Orange Tucker Wildlife Sanctuary, Modjeska Canyon inside sanctuary. Comment
  RSA701807  Adiantum capillus-veneris Fred M. Roberts 1999-7-22 5248 Orange Lomas de Santiago: Lomas Ridge, tributary to Limestone Canyon at Dripping Springs. Limestone Wilderness Park. 415 Comment
  RSA0119682  Adiantum jordanii Fred M. Roberts 2015-3-10 7923 Orange San Joaquin Hills: Niguel Hill, on ridge above Aliso Canyon ear end of Ceanothus Drive (Hangover House property), 0.4 km WNW summit Aliso Peak. 122 Comment
  RSA649846  Adiantum jordanii D. E. Bramlet 2000-4-12 2979 Orange Tributary to Fremont Canyon. the site is 396m northwest of the Edison Spur road and 1.2km southeast of the Fremont ridge road. The locality is 305m southwest of knoll 1515. 372 Comment
  RSA698477  Adiantum jordanii R. H. McArthur 1934-4-28 s.n. Orange Ladd Canyon Comment
  RSA84993  Adiantum jordanii F. W. Peirson 1924-5-31 4666 Orange 5 miles SE of Laguna Beach. Comment
  UCR215286  Adiantum jordanii Fred M. Roberts 2008-5-14 6960 Orange Lomas de Santiago, Loma Ridge, upper Bee Flat Canyon below Loma Ridge Road, 1.3 km north of Bee Peak and 5.4 km NW of Bolero Lookout. Irvine Ranch Conservancy 337 Comment
  UCR222415  Adiantum jordanii D. E. Bramlet 2008-4-1 4139 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, ridgeline in upper Hicks Canyon, 136 m south of the Haul Road 341 Comment
  IRVC3118  Adiantum raddianum Polly Brecht 1965-5-7 HS 0580 Orange Newport Beach; Cherry Tree Lane. Southern Coastal Comment
  UCR162341  Aeonium Robert DeRuff 1988-1 406 Orange Southern Coast, Newport Beach, Upper Newport Back Bay, bluff c. 0.25 mi N of Big Canyon 30 Comment
  UCR192990  Agrostis pallens A. C. Sanders, Fred M. Roberts 2008-6-17 35490 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, West Loma Ridge Spur Road c. 1 km east of Sheriff's Training Facility and 1.6 km SW of Irvine Lake, between hwys 241 and 261 357 Comment
  UCR192983  Agrostis viridis A. C. Sanders, Fred M. Roberts 2008-6-17 35467 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Agustine staging area near Limestone Canyon Rd. gate at Santiago Cyn Rd. 260 Comment
  UC455142  Alisma plantago-aquatica I. J. Condit 1908-7-21 Orange Los Alamitos Comment
Read comments
Nov 20 2010
  UCSB52871  Allium haematochiton Roberts, Fred; Marsh, G. 1983-3-30 Orange UC Irvine Ecological Preserve, 0.8 km. SSW UCI campus center 60 Comment
  RSA0063249  Allium marvinii Philip A. Munz 1949-5-26 13373 Orange Head of Sierra [Freemont] Canyon, Santa Ana Mountains. 732 Comment
  RSA708816  Allium peninsulare var. peninsulare Fred M. Roberts, Robert L. Allen, Chris Barnhill, Nancy Hatfield 2005-5-30 6213 Orange Main Divide Road, ridge between Silverado and Bixby Canyons, coastal slope, 0.46km (air) S Bald Peak. 1203 Comment
  POM180165  Allium praecox W. D. Baker, Joseph A. Ewan 1930-3-22 s.n. Orange Brea Canyon, one mile above Brea. Comment
  RSA0051391  Allium praecox Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49664 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. Comment
  SD245425  Allophyllum glutinosum Robert Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49604 Orange Santa Ana Mountains: rocky ravine tributary to San Juan Canyon, along Ortega Highway (74) about 2 miles above San Juan Fire Station. Comment
  IRVC21737  Alnus rhombifolia Fred M. Roberts 1984-10-18 1425 Orange San Juan Canyon, 2.5km ENE San Juan Guard Station; 4.0km WNW Sitton Peak, Santa Ana Mountains 310 Comment
  RSA5391  Alnus rhombifolia B. D. Stark 1932-12-30 1717 Orange Rancho Santa Ana. River bottom below Mexican houses. 122 Comment
  RSA734635  Alnus rhombifolia A. C. Sanders, T. B. Salvato 2008-5-13 35366 Orange Lomas de Santiago, Santiago Canyon above (S of) mouth of Hangman Tree Canyon, just below Modjeska Canyon confluence 366 Comment
  UCR219282  Aloe arborescens Robert DeRuff 2009-1 574 Orange South Coast, Upper Newport Bay, Eastbluff area, lower Big Canyon 23 Comment
  RSA737481  Aloe saponaria Fred M. Roberts 2008-3-12 6735 Orange Dana Point: Dana Point Headlands CNLM Preserve, western side, c.a. 0.8 km W Marine Institute (Dana Point Harbor). 50 Comment
  RSA799618  Alopecurus saccatus Justin M. Wood 2011-4-12 3651 Orange South Coast: City of Costa Mesa. Fairview Park, just WNW of Marison Special Education Center. 24 Comment
  SEINET8727106 Image available Alyssum maritimum Jean Coulson 1959-1 s.n. Orange Anaheim 2454 W. Broadway, at N. E. Corner of house. Comment
  UCR197685  Amaranthus A. C. Sanders, Fred M. Roberts 2008-9-18 36063 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge 330 Comment
  UCR44898  Amaranthus albus B. G. Pitzer, L. F. LaPre 1986-10-20 0313 Orange City of Irvine, Drainage channel near intersection of Irvine Blvd. and Sand Canyon Avenue. 91 Comment
  IRVC14988  Amaranthus hybridus 1976-10-28 Orange Nieblas Elementary Sch. playground Fountain Valley Comment
  POM201880  Amaranthus hybridus L. M. Booth 1932-7-25 s.n. Orange Santa Ana River, 1 1/2 miles from ocean. Comment
  UCSB37368  Amaranthus hybridus Roos, Alfred 1937-12-2 Orange Santa Ana Comment
  UCR111749  Amaranthus retroflexus G. S. Nuessly 1980-11-27 s.n. Orange South Coast, south side of East Santiago Canyon Road, 0.25 mi north [west] of North Windes Drive 137 Comment
  UCSB50645  Amaranthus retroflexus Roberts, Fred; Allen, R. 1982-7-4 Orange Chino Hills; Carbon Canyon, Carbon Canyon Rd., 0.6 km. by road SW county line; 2.3 km. NNW Gilman Peak 250 Comment
  RSA404566  Amaranthus retroflexus Albert J. Perkins 1912-10-15 s.n. Orange Peatlands near head Newport Bay. Comment
  CAS-BOT-BC13494  Amblyopappus pusillus Louis C. Wheeler 1932-6-25 859 Orange Newport Bay 3 Comment
  POM5985  Amblyopappus pusillus Philip A. Munz 1918-5-5 2186 Orange Laguna Beach. Comment
  UCR17118  Amblyopappus pusillus N. J. Moriarty 1973-5-27 730527 -5 Orange San Clemente State Beach, 0.2 mi. south of end of Ave. Califia Comment
  CAS-BOT-BC13772  Ambrosia chamissonis David D. Keck 1933-9-8 2542 Orange Sunset Beach 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
  UCR42386  Ambrosia chamissonis A. C. Sanders 1986-5-31 6524 Orange Southern Coast, Balboa Island at Newport Beach. Dunes at the back edge of the beach, from 6th St. S to the harbor entrance 1 Comment
  UCSB10368  Ambrosia chamissonis McElwain, Isabelle 1953-4-25 Orange U.S. 101, 2 mi. S of Huntington Beach Comment
  POM324260  Ambrosia chamissonis var. chamissonis Barbara L. Wilson 1967-6-3 22 Orange Laguna Beach. 30 Comment
  CAS-BOT-BC45063  Ambrosia psilostachya Ira L. Wiggins 1965-10-18 20272 Orange Vacant lot, NE corner of Chapman Ave. and Victor Dr., Fullerton Comment
  CDA10047  Ambrosia psilostachya D. G. Kelch 2006-12-9 6 .551 Orange Irvine. University Dr along tidal creek just E of I-73. Comment
  UCR197676  Ambrosia psilostachya A. C. Sanders, Fred M. Roberts 2008-9-18 36073 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge 330 Comment
  UCR267219  Ammannia coccinea Fred M. Roberts, Sandra L. Leatherman 2008-9-3 7083 Orange Santa Ana River Canyon, YORBA LINDA: Santa Ana River, 0.7 km W Gypsum Canyon bridge, south of La Palma Ave. 107 Comment
  JEPS12324  Ammi visnaga Lawrence M. Booth 1932-7-18 1268 Orange near Coast Santa Ana R. Meadow Comment
  CAS-BOT-BC180616  Amorpha californica var. californica L. R. Abrams 1901-6-1 1828 Orange Santa Ana Mts. Comment
  UC1137519  Amorpha californica var. californica R. St. John 1931-4-14 204 Orange Hot Springs Elsinore Quadrangle, San Juan Canyon 304 Comment
  JEPS35488  Amorpha fruticosa John Thomas Howell 1927-6-6 2449 Orange Rancho Santa Ana Santa Ana Canyon, Santa Ana River bottom 152 Comment
  RSA703704  Amorpha fruticosa Fred M. Roberts, David E. Bramlet 2004-7-30 6090 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy Cristianitos Canyon, along Cristianitos Ck., 0.93 km SSW Gato Gate and 0.23 km W Cristianitos Road. 76 Comment
  RSA699548  Amsinckia douglasiana J. R. Bruff s.n. Orange Roadside. Comment
  RSA0090945  Amsinckia eastwoodiae James Snow s.n. Orange Plants of the Bryant Ranch, near Long Beach. Comment
  RSA499932  Amsinckia intermedia E. A. Purer, Freda Detmers 1932-3-23 15572 Orange near Huntington Beach. Roadside of Coast Highway Comment
  RSA0089447  Amsinckia intermedia Ken Greby 1985-4-18 17 Orange Alongside Laguna Canyon Rd. approx. 1.5 km. NE from El Toro Rd. 46 Comment
  RSA0089627  Amsinckia intermedia Marcus E. Jones 1926-3-13 s.n. Orange Santa Ana Canyon. Comment
  RSA572  Anagallis arvensis J. T. Howell 1927-7-27 s.n. Orange Santa Ana River, Rancho Santa Ana. 152 Comment
  RSA732166  Anagallis arvensis A. C. Sanders, Fred M. Roberts 2008-4-8 34729 Orange Peninsular Range: Lomas de Santiago, Loma Ridge, head of Hicks Canyon. S of Santiago Reservoir. 351 Comment
  UCR4089  Anagallis arvensis Carole Sims 1965-3-28 s.n. Orange South Coastal Plains, Salt Creek Road off Pacific Coast Highway, between South Laguna and Dana Point 18 Comment
  RSA465158  Anagallis arvensis N. C. Cooper 1944-6-4 1353 Orange San Juan Canyon, lower camp ground. 457 Comment
  RSA0036018  Andropogon glomeratus Robert F. Thorne 1977-11-21 50807 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs Comment
  CAS-BOT-BC400329  Anemopsis californica Herbert L. Mason 1926-4-25 2902 Orange Near Laguna Comment
  JEPS535  Anemopsis californica Lawrence M. Booth 1932-7-19 1280 Orange Bolsas Creek Comment
  RSA552945  Anemopsis californica Fred M. Roberts, R. E. Riefner 1989-5-2 4325 Orange Aliso-Wood Canyons Regional Park: Lower Woods Canyon, 3.5 km SSE Multon Peak. 30 Comment
  IRVC9385  Anthemis cotula B. T. Gittins 1966-6-22 1411 Orange 0.5mi N Warner on Euclid Ave. Huntington Beach Comment
  JEPS13328  Anthemis cotula L. M. Booth 1932-5-15 1200 Orange Coastal Santa Ana Basin Comment
  RSA734807  Anthriscus caucalis A. C. Sanders, Fred M. Roberts 2008-5-6 35255 Orange Lomas de Santiago, slope SE of road junction along ridge road, near head of Agua Chinon Canyon, 2.4 miles north of El Toro 470 Comment
  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
  RSA701675  Antirrhinum nuttallianum L. C. Hull 1939-9-8 s.n. Orange Laguna Hills Comment
  UCR229212  Antirrhinum nuttallianum Dick Newell, Peter Wetzel 2011-6-28 200 Orange South Coast, San Joaquin Hills, Willow Canyon, Laguna Coastal Wilderness Park 89 Comment
  UCR91395  Antirrhinum nuttallianum Scott D. White 1995-3-9 2541 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, Lower San Juan Picnic Area, just north of Hwy 74 396 Comment
  JEPS4277  Antirrhinum nuttallianum subsp. nuttallianum Alice King May 1908 Orange Newport Beach Comment
  POM4240  Antirrhinum nuttallianum subsp. nuttallianum I. M. Johnston 1918-5-4 1888 Orange Back of Laguna Beach, moist shaded hillside 61 Comment
  RSA552930  Antirrhinum nuttallianum subsp. nuttallianum Fred M. Roberts, R. E. Riefner 1989-5-2 4331 Orange Aliso-Wood Canyons Regional Park: Lower Wood Canyon, 3.5 kilometers SSE Multon Peak. 43 Comment
  RSA743494  Antirrhinum nuttallianum subsp. subsessile Fred M. Roberts 2008-3-19 6784 Orange Dana Point: Dana Point Headlands, CNLM Preserve, 0.8km W Marine Institute, Dana Point Harbor. 45 Comment
  UCSB50648  Aphanes occidentalis Marsh, K. 1984-2-17 Orange Casper's Regional Park: Cyn. north of Carillo Road, c.a. 1.6km NE Visitor Center 150 Comment
  UCR141341  Aphanisma blitoides Robert DeRuff 1991-1 422 Orange Southern Coast, Newport Beach, Newport Back Bay, east of Delhi Ditch; bluff side of the wooden horse and bike path 6 Comment
  RSA0002591  Apium graveolens var. graveolens F. W. Peirson 1924-5-31 4656 Orange Open Canyon, Laguna Beach. 91 Comment
  UCR241665  Apocynum cannabinum Dick Newell, Judy Booth 2013-5-28 331 Orange Peninsular Range; Santa Ana Mtns., Agua Chinon Wash, 1.12 mi. due west of Bolero Point, Limestone Canyon Rd. 269 Comment
  RSA542587  Aralia californica Fred M. Roberts, R. E. Riefner 1988-7-19 4114 Orange Santa Ana Mountains; Maple Springs Truck Trail, Upper Silverado Canyon, 1.9km N Modjeska Peak. 1128 Comment
  IRVC22985  Araujia sericifera Karlin G. Marsh 1986-9-12 Orange Yorba Linda; Santa Ana Canyon, Santa Ana River, north side, Featherly Park south of Esperanza Rd. Santa Ana Mountains 105 Comment
  CAS-BOT-BC128676  Arbutus menziesii Carl B. Wolf 1933-11-8 2008 Orange Trabuco Canyon on south wall opposite the Trabuco Truck Trail, Santa Ana Mts. 914 Comment
  UCR273480  Arctostaphylos glandulosa A. C. Sanders, Glen Morrison 2016-8-4 42607 Orange Peninsular Range; Santa Ana Mountains, North Main Divide Road (Forest Rte 3S04) between Hwy 74 and Los Pinos Spring, 2.3 km NW (312 deg. ) of El Cariso Fire Station 959 Comment
  UCR273489  Arctostaphylos glandulosa A. C. Sanders, Glen Morrison 2016-8-4 42605 Orange Peninsular Range; Santa Ana Mountains, North Main Divide Road (Forest Rte 3S04) between Hwy 74 and Los Pinos Spring, 1.7 km NW (312 deg. ) of El Cariso Fire Station 959 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
  CAS-BOT-BC23111  Arctostaphylos glandulosa subsp. glandulosa P. A. Munz; E. K. Balls 1952-8-19 17924 Orange Summit of Ortega hwy, Santa Ana Mts. 822 Comment
  POM254950  Arctostaphylos glandulosa subsp. glandulosa W. Pequegnat 1940-6-13 s.n. Orange Bear Springs, Santa Ana Mts. Comment
  RSA626920  Arctostaphylos glandulosa subsp. glandulosa Jon E. Keeley 1992-6-12 15505 Orange Hotshot Camp, north of Ortega Highway (Highway 74). 900 Comment
  RSA629317  Arctostaphylos glandulosa subsp. glandulosa Jon E. Keeley 1992-6-12 15524 Orange North of El Cariso on road to Los Pinos Pk, 3.8 km north of Hwy 74. 1000 Comment
  RSA629318  Arctostaphylos glandulosa subsp. glandulosa Jon E. Keeley 1992-6-12 15525 Orange North of El Cariso on road to Los Pinos Pk, 3.8 km north of Hwy 74. 1000 Comment
  SD247632  Arctostaphylos glandulosa subsp. glandulosa R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49683 Orange Northern Santa Ana Mountains; Coal Canyon [NW of Sierra Peak] 456 Comment
  POM254954  Arctostaphylos glandulosa subsp. zacaensis W. Pequegnat 1940-4-13 s.n. Orange Modjeska Springs, Santa Ana Mts. 1311 Comment
  UC1120328  Arctostaphylos glandulosa subsp. zacaensis H. A. Jensen 1937-11-4 415 Orange head of Trabuco Canyon Cleveland National Forest, Elsinore Quadrangle Comment
  RSA748167  Arctostaphylos otayensis K. M. Meyer, A. Townesmith, T. Scott 2007-3-10 6 Orange Cleveland National Forest, 2 mi. N of Main Divide Rd./NF3S04, off Hwy. 74. 957 Comment
Read comments
Dec 19 2014
  UCD170239  Arctostaphylos otayensis K. M. Meyer; A. Townesmith and T. Scott 2007-3-10 6 Orange Cleveland National Forest, 2 mi. N of Main Divide Rd./NF3S04, off Hwy. 74. 957 Comment
  SEINET10449249  Arctostaphylos otayensis James S. Miller 2001-12-15 Miller 10648 Orange Rancho Santa Ana Botanic Garden, Santa Ana, CA. Comment
Read comments
Jan 17 2020
  UCR27108  Argemone munita subsp. robusta T. P. Krantz 1981-6-18 s.n. Orange Santa Ana Mtns, Main Divide Truck Trail near the head of the canyon Comment
  RSA588884  Aristida adscensionis Fred M. Roberts, D. Bontrager 1990-6-5 4670 Orange Rancho Mission Viejo: Uper Gabino Canyon, near Orange County line, 3.9 kilometers E Point Ranch Survey Marker; UTM Z11 37 10 300m N, 4 52 100m E. 280 Comment
  RSA663206  Aristida purpurea var. parishii R. E. Riefner 2000-8-21 20 -729 Orange NCCP North Ranch Policy Plan Area. Along dort road running S from Baker Canyon Road to Silverado Road. 335 Comment
  SD52987  Arnica discoidea Peter H. Raven 1962-5-18 17751 Orange 4.8 miles above Gate on Silverado Canyon Truck Trail, Santa Ana Mountains 1064 Comment
  UC520316  Artemisia californica Joseph Andorfer Ewan 1932-7-28 7710 Orange e end Newport Bay Comment
  UCD129226  Artemisia californica B. Pitzer 1997-11-8 3373 Orange Crystal Cove State Park: Pelican Point Area, grassland area between Pacific Coast Hwy and the bike trail. Open areas adjacent to parking lot. 30 Comment
  UCR228798  Artemisia californica Dick Newell, Don Millar 2011-5-3 139 Orange Coastal Plains, San Joaquin Hills, Laguna Canyon Wilderness Park, Willow Trail 160 Comment
  UCSB16965  Artemisia californica Gerhart, Janet 1963-2-22 Orange 1.5 miles above locked gate on dirt road, Trabuco Canyon, 17.4 miles east of U.S. Highway 101 at El Toro Marine Base, 2.5 miles by air southeast of Santiago Peak 457 Comment
  SEINET229339  Artemisia californica Unknown 1976-7-21 440 Orange CULTIVATED; Orange County: Cultivated plants collected in and around the condominium Pacific Island Estates in Laguna Hills. Comment
  CAS-BOT-BC90267  Artemisia douglasiana John Thomas Howell 1927-8-13 2989 Orange Santa Ana River bottom, Santa Ana Canyon 152 Comment
  IRVC25177  Artemisia douglasiana Fred M. Roberts, Brenda Fugle 1986-10-1 3156 Orange Laguna Hills; creek channel along Cabot Rd. ca. 1.0km N Pacific Park Pkwy. Southern Coastal 99 Comment
  JEPS36924  Artemisia douglasiana L. M. Booth 1932-7-23 1302 Orange Corona del Mar 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
  RSA478872  Arthrocnemum subterminale F. R. Fosberg 1931-8-19 7283 Orange Newport Bay. 0 Comment
  SFV20017  Arthrocnemum subterminale A. Dittmer, S. Dark 2004-10-3 78 Orange Bolsa Chica wetlands. Across the public access bridge (east) of the public parking area off Highway 1. Comment
  CDA31508  Arundo donax D. G. Kelch 2006-12-9 06 .559-B Orange Irvine. University Dr along tidal creek just E of I-73. Comment
  RSA719403  Arundo donax Fred M. Roberts, Robert L. Allen 2006-10-8 6432 Orange San Juan Capistrano: San Juan Creek Flood Control Channel, c.a. 0.2 to 0.3km N Stonehill Dr. bridge and 1.1km SSE Marco Forster Jr. High Sch. 4 Comment
  RSA549704  Asclepias californica Terry J. O Brien 1992-5-23 1204 Orange Cleveland National Forest, trail S of Blue Jay Campgrounds. 1037 Comment
  RSA542588  Asclepias eriocarpa Fred M. Roberts, K. Keane 1988-5-25 3998 Orange Rancho Mission Viejo: Lower Canada Chiquita, 1.9km SSE Medium Rancho Survey Mark, UTM 3710800m N, 443500m E 90 Comment
  RSA657741  Asclepias eriocarpa Ken Greby 1985-5-17 25 Orange On hillsides behind PG and E substation located 2 km. SE from Laguna Canyon Rd., on El Toro Rd., adjacent to Leisure World. Comment
  RSA743383  Asparagus asparagoides Fred M. Roberts 2008-5-27 7002 Orange Dana Point: Dana Point Headlands, CNLM Preserve near NE Gate, 0.5km W Marine Institute (Dana Point Harbor). 75 Comment
  POM146199  Aster bernardinus F. M. Reed 1927-11-9 5634 Orange Margin of Hwy, 1 mile S of Tustin. Comment
  RSA93824  Aster hesperius F. W. Peirson 1924-10-19 5241 Orange Wintersberg Comment
  UCR210368  Aster subulatus T. B. Salvato, Billy Deane 2006-10-16 1940 Orange South Coast, Irvine, San Diego Creek flood control channel, between Michelson Drive and the 405 FWY 12 Comment
  RSA232225  Aster subulatus var. ligulatus James Henrickson 1970-10-3 5360 Orange 3 miles NE of Huntington Beach just N of Bolsa Chica Salt Marsh. 0 Comment
  NY621861  Astragalus brauntonii C. B. Wolf 1936-6-22 8000 Orange This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  UCR224310  Astragalus brauntonii Justin M. Wood 2010-5-12 1686 Orange Santa Ana Canyon, Santa Ana River floodplain, 0.25 mi north of Coal Canyon Wildlife Corridor, west of Green River Golf Course on bluff south of the river 122 Comment
  CAS-BOT-BC177875  Astragalus didymocarpus var. didymocarpus Helen D. Geis 1902-4-1 s.n. Orange Dry bed of Santiago Creek in [canon] canyon Comment
  RSA542542  Astragalus gambelianus Fred M. Roberts 1988-3-15 3848 Orange Rancho Mission Viejo: Verdugo Canyon, 2.6 km ENE Point Rancho Survey Mark 149 Comment
  UCR222417  Astragalus gambelianus D. E. Bramlet 2008-3-31 4135 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, 282 m east of upper Hicks Haul Rd., tributary of Limestone Canyon, 1 km south of Santiago Canyon Rd. 317 Comment
  RSA699499  Astragalus nigrescens Anonymous s.n. Orange Orange County park Comment
  JEPS54671  Astragalus trichopodus var. lonchus C. J. Kraebel 1929-12-9 Orange hillside s San Juan Hill (Rancho Santa Ana Botanic Garden, in extreme e corner of Orange County, n of Santa Ana River, e of Anaheim); Rancho Santa Ana Botanic Garden, nr San Juan Hill 304 Comment
  SJSU419  Astragalus trichopodus var. lonchus A. W. Jacobs 1938-8-4 Orange Trabuco Canyon, Santa Ana Mts c. 6 mi NE of El Toro Comment
  SEINET7796213  Astragalus trichopodus var. lonchus E. A. Bourdo 1975-7-25 s.n. Orange Crest of hills above Niguel Beach Comment
  RSA5821  Atriplex C. B. Wolf 1932-6-28 s.n. Orange 25 ft. west and 600 ft. north of SE corner of SE 1/4 sect 29. 9 Comment
  RSA743665  Atriplex amnicola R. E. Riefner 2007-9-11 7 -378 Orange City of San Juan Capistrano, vicinity of San Juan Creek road and Paseo Christina. 34 Comment
  RSA743667  Atriplex amnicola R. E. Riefner 2008-5-25 8 -111 Orange City of San Clemente, vicinity of Camino de Los Mares and Calle Nuevo. 45 Comment
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Aug 26 2013
  RSA743668  Atriplex amnicola R. E. Riefner 2007-8-4 7 -344 Orange City of San Juan Capistrano, San Juan Creek, ca. 0.2 mi W of intersection of Paseo Tirador and Calle Arroyo St. 31 Comment
  RSA65355  Atriplex argentea F. W. Peirson 1924-8-29 5090 Orange Corona Del Mar Comment
  UC523561  Atriplex argentea var. mohavensis David D. Keck 1933-10-3 2538 Orange 50 m from ocean (Sunset Beach); Sunset Beach Comment
  POM17484  Atriplex californica P. A. Munz 1923-4-1 6912 Orange Laguna Lakes. 61 Comment
  POM254668  Atriplex californica F. W. Peirson 1924-2-10 4534 Orange Corona Del Mar Comment
  RSA678456  Atriplex californica Valerie Soza, Kevin B. Clark, LeRoy Gross, Will Miller, Fred Roberts, Gary D. Wallace 2001-4-4 1109 Orange Seal Beach National Wildlife Refuge: Seal Beach U. S. Naval Weapons Station, across access road from Nature Center (Bldg 226). 3 Comment
  RSA716777  Atriplex californica Fred M. Roberts, Chris M. Barnhill 2004-7-10 6072 Orange Laguna Beach: Crescent Bay, at base of Twin Points. 3 Comment
  RSA747714  Atriplex californica Fred M. Roberts 2008-7-10 7073 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
  RSA542649  Atriplex californica Fred M. Roberts 1988-10-12 4159 Orange San Clemente State Park: c.a. 0.2 km SE end of Ave. California along Santa Fe RR. 3 Comment
  RSA703387  Atriplex californica R. E. Riefner Jr. 2004-5-6 4 -170 Orange Newport Beach, north side of Pacific Coast Hwy., west of Bayside Drive near Newport Dunes Beach Club. 10 Comment
  JEPS59536  Atriplex canescens L. M. Booth 1932-7-1 1249 Orange Newport Bay Comment
  RSA452455  Atriplex canescens Albert J. Perkins 1920-6-12 s.n. Orange Corona del Mar Comment
  RSA734662  Atriplex canescens A. C. Sanders, Fred M. Roberts 2008-6-17 35484 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago, East Loma Ridge Spur Road c. 300 m NW of Shoestring Rd. junction, on ridge above tollway, 1.35 mi. SSW of Irvine Lake. 398 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
  UCR221461  Atriplex canescens Dick Newell, Don Millar, Steve Shinn 2010-9-28 38 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Hicks Haul Road (Jeffrey Rd.) 1/2 mile east of Hwy 241 toll road 236 Comment
  CAS-BOT-BC170192  Atriplex canescens subsp. canescens I. M. Johnston 1918-9-3 2149 Orange Laguna Beach 6 Comment
  RSA580939  Atriplex coulteri D. E. Bramlet 1994-4-30 2377 Orange San Joaquin Hills. At the head of Bommer canyn, approximatly 30m. NE of the rideline truck trail, near peak 1033. 296 Comment
  RSA0040090  Atriplex coulteri Sandra Leatherman 2014-3-18 2014 -3 Orange Santa Ana Mountains region: South Orange County; northeast of Antonio Parkway and Sendero Way; adjacent to the Chiquita Reclamation Plant access road. 76 Comment
  IRVC22418  Atriplex glauca Karlin G. Marsh 1985-12-18 Orange along Niguel Rd. at Salt Creek crossing, Laguna Niguel 60 Comment
  SBBG121998  Atriplex glauca R. E. Riefner 2005-12-13 05 -784 Orange ca. 0.5 mi N of Alton Parkway, E side of SR-241; Lake Forest 230 Comment
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Dec 13 2012
  SD233800  Atriplex glauca W. Ferren 1991-12-2 EPA 17 Orange San Juan Creek Highway 74 at bridge for San Juan Creek, San Juan Capistrano. Comment
  CAS-BOT-BC170116  Atriplex lentiformis Carl B. Wolf 1927-7-23 666 Orange Just no. of San Clemente on coastal slopes. 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
  POM278962  Atriplex lentiformis subsp. breweri Lyman Benson 1945-1-13 11587 Orange Laguna Beach. 15 Comment
  RSA478323  Atriplex leucophylla Gertrude Dunn 1931-8-9 s.n. Orange Between Huntington Beach and Santa Ana Comment
  SD181601  Atriplex leucophylla Valerie Soza, K Clark,L Gross,W Miller,F Roberts,G Wallace 2001-4-4 1117 Orange Anaheim Bay, Seal Beach, U.S. Naval Weapons Station, southwestern edge of Seal Beach National Wildlife Refuge; Seal Beach 7.5' quad. Coastal sand dunes. 3 Comment
  SD40196  Atriplex leucophylla Edith A. Purer 1932-8-31 4870 Orange Along Route 101. Comment
  UC537061  Atriplex leucophylla P. A. Munz 1934-3-26 13137 Orange edge of salt marsh Newport Beach Newport Beach 4 Comment
  RSA593870  Atriplex lindleyi R. E. Riefner 1994-6-18 94 -427 Orange San Clemente State Beach Comment
  CAS-BOT-BC180907  Atriplex pacifica John Thomas Howell 1927-7-17 2788 Orange One mile north of Laguna Beach 30 Comment
  RSA539447  Atriplex polycarpa Karlin G. Marsh 1991-10-29 s.n. Orange Anaheim: Santa Ana Canyon, south side of Santa Ana River just east of Imerial Highway, 4.1km NW Robbers Peak. 87 Comment
  RSA700319  Atriplex rhagodioides Roger Reinke 2003-2-18 s.n. Orange South Coast: Newport Back bay, Big Canyon 30 Comment
  UCSB56686  Atriplex rosea Roberts, Jr., Fred 1982-7-31 Orange San Clemente; at end of Calle San Pablo; 1.3 km. E Civic Center 220 Comment
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Feb 2 2020
  SD253974  Atriplex semibaccata Jim Riley 2013-10-15 121 Orange San Clemente area; 0.56 miles ESE intersection Avenida Pico and Camino La Pedriza; just N San Diego County line 68 Comment
  UCSB44181  Atriplex semibaccata Henneman, J. 1977-5-21 Orange Newport Back Bay 6 Comment
  RSA184160  Atriplex semibaccata I. L. Wiggins 1965-10-24 20280 Orange Roadside along Skyline Drive near intersection with Raymond Street, Fullerton. Comment
  RSA234479  Atriplex semibaccata James Henrickson 1970-7-25 5034 Orange 3.5 miles NW of Huntington Beach on sandy margin of Bolsa Bay, 1/4 mile SE of Warner Ave. along Pacific Coast Hwy. 0 Comment
  RSA254  Atriplex serenana J. T. Howell 1927-6-30 235 Orange Bryant Ranch near Long Beach. 15 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
  RSA651748  Atriplex serenana Michael J. Graeser 1988-5-8 30 Orange Orange. Santiago Canyon road. 1 mile north of Chapman Ave. [Across] from Holy Sepulcher Cemetary. Comment
  RSA452383  Atriplex serenana var. davidsonii L. C. Wheeler 1934-1-14 2363 Orange Aliso Creek near Laguna. 76 Comment
  UC206816 Image available Atriplex serenana var. davidsonii A. Davidson, M. D. Sep 1913 2951 Orange Balboa; ; Balbra Comment
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Feb 22 2012
  CDA2962  Atriplex suberecta Tom Perring, Tracy Pinckard 1994-3-2 s.n. Orange South Coast; Tustin, Marine Helicopter Station at the corner of Moffett Drive and Jamboree Rd. Comment
  UCD97688  Atriplex suberecta Tom Perring; Tracy Pinckard 1994-3-2 s.n. Orange South Coast, Tustin, Marine Helicopter Station at the corner of Moffett Drive and Jamboree Road. 11 Comment
  UCR154266  Atriplex suberecta Mark A. Elvin 2004-5-2 3424 Orange Southern Coastal, Irvine: San Joaquin Freshwater Marsh, near Campus and University Drives; 1.7 km (air) NNW UC Irvine campus center 3 Comment
  RSA741479  Atriplex suberecta R. E. Riefner 2008-5-22 8 -114 Orange Near City of Orange, Santiago Creek, vicinity of Hangman s Tree Canyon, Santiago Creek Rd., Irvine Ranch Reserve, Management Area 15. Comment
  UCR130484  Atriplex triangularis R. E. Riefner Jr. 2003-8-31 03- 340 Orange South Coast, Costa Mesa, Talbert Regional Park, Discovery Walk Trail and Balboa Ave. 12 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
  CAS-BOT-BC146059  Avena barbata Ira L. Wiggins 1966-3-16 20529 Orange Roadside near entrance to Firestone Boy Scouts Reservation. Comment
  JEPS68451  Avena barbata L. M. Booth 1932-5-12 1040 Orange Newport Bay Comment
  RSA734992  Avena barbata A. C. Sanders, T. B. Salvato 2008-5-13 35378 Orange Lomas de Santiago, Santiago Canyon above (S of) mouth of Hangman Tree Canyon, just below Modjeska Canyon confluence 366 Comment
  UCSB47966  Avena barbata Roberts, Fred 1980-4-3 Orange Hills 1.5 km ENE of Dana Hills High School; Dana Point 85 Comment
  RSA40  Avena barbata J. T. Howell 1927-6-17 166 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  OBI7908  Avena fatua Kurt R. Neisess 1976-1-3 s.n. Orange Collected in the Fullerton Hills Comment
  UCR100306  Avena fatua B. G. Pitzer 1997-4-15 3140 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
  UCR217469  Avena fatua Mark A. Elvin 2003-2-23 2316 Orange South Coast, Irvine, San Joaquin Marsh along the berm of San Diego Creek 3 Comment
  RSA0046823  Avena fatua Jason Berkley 1994-5-3 14 Orange Yorba Linda, grassy field off Bastuchury Rd. 50 yds from Casa Loma Ave. Comment
  RSA650631  Avena fatua Daniel Truong 1991-5-5 12 Orange Irvine Regional Park, left field adjacent to main entrance, within 1/4 mile radius of ''closed area''. Comment
  RSA21069  Azolla filiculoides Ramon Valverde 1938-8-4 9435 Orange Rancho Santa Ana, Santa Ana Canyon. 122 Comment
  RSA717048  Azolla filiculoides Fred M. Roberts, Chris M. Barnhill 2005-9-27 6281 Orange San Juan Capistrano: San Juan Creek wash, east of La Novia Road bridge, 1.4km E Mission San Juan Capistrano. 27 Comment
  UCSB34207  Baccharis emoryi Wayne R. Ferren, Jr. with F. Roberts 1980-8-27 2342 Orange collected 3.5 km NE, in Newport Backbay, trending NW from Bayside Drive, in Newport Beach. Route 1 - Newport Backbay, Bayside Drive, and Newport Beach 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
  RSA650812  Baccharis glutinosa Daniel Truong 1991-5-13 26 Orange Irvine Regional Park, left field adjacent to main entrance, within 1/4 mile radius of ''closed area''. Comment
  UCR112095  Baccharis glutinosa A. C. Sanders, D. Malueg, K. D. Jones 2000-4-19 23336 Orange Pacific Coast, Bolsa Chica Lagoon, along dirt roads in oil field, east of Hwy 1, east of Bolsa Chica St. 11 Comment
  UCR210317  Baccharis glutinosa A. C. Sanders, Fred M. Roberts, Jutta Burger 2009-10-21 37201 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Canyon near mouth of Limestone Cyn., at Agustine Staging Area 260 Comment
  CAS-BOT-BC99441  Baccharis pilularis Carl B. Wolf 1934-12-26 6262 Orange south end of town of San Clemente 15 Comment
  RSA683231  Baccharis pilularis Scott D. White, Matt Carlton 2003-11-20 6860 Orange Santa Ana Mountain foothills; San Juan Creek in San Juan Capistrano; (Dana Point) 24 Comment
  RSA731659  Baccharis pilularis Fred M. Roberts 2007-10-29 6620 Orange Niguel Hill: Laguna Niguel, Seaview Park, 1.3 km ENE Aliso Peak. 265 Comment
  RSA743499  Baccharis pilularis Fred M. Roberts 2008-9-10 7098 Orange Dana Point: Dana Point Headlands, CNLM Preserve, north of Marguerita Drive, 0.5 km WNW Marine Institute, Dana Point Harbor. 75 Comment
  RSA292686  Baccharis pilularis James Henrickson 1972-10-21 8047 Orange Eastern Anaheim, 2 blocks E of Imperial Hwy along LA Palma Ave, just N of Santa Ana River. 61 Comment
  SD11869  Baccharis pilularis subsp. consanguinea Carl B. Wolf 1934-12-26 6262 Orange South end of San Clemente. 14 Comment
  CDA10394  Baccharis salicifolia D. G. Kelch 2006-12-9 6 .557 Orange Irvine. University Dr along tidal creek just E of I-73. Comment
  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
  RSA685928  Baccharis salicifolia Fred M. Roberts 2003-3-27 5627 Orange Rancho Mission Viejo:Donna O'Neill Land Conservancy, Chistianitos Canyon, along North Ride Trail, 1.37 km N Sycamore Gate, 0.36 km W Chistianitos Rd. 114 Comment
  SEINET5642637  Baccharis salicifolia Shelby J. Wood 2013-3-6 5 Orange Laguna Hills.; 0 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
  UC1292590  Baccharis salicifolia subsp. salicifolia C. L. Hitchcock and C. V. Muhlick 1964-3-17 23068 Orange 8 mi e of Yorba Linda (Santa Ana Canyon); Santa Ana Canyon Comment
  IRVC22976  Baccharis sarothroides Karlin G. Marsh 1986-12-15 Orange Santa Ana Canyon, Santa Ana River, south side, Horseshoe Bend, Yorba Linda 105 Comment
  RSA735163  Bahiopsis laciniata A. C. Sanders, Fred M. Roberts 2008-5-6 35234 Orange Lomas de Santiago, lower Hicks Canyon, just above tollway (Hwy 241) crossing on Irvine Haul Rd., near debris basin 216 Comment
  UC536942  Bassia hyssopifolia Lawrence M. Booth 1932-5-27 1130 Orange West Newport Beach Comment
  RSA439753  Batis maritima F. R. Fosberg 1930-7-10 S 3184 Orange Anaheim Landing. [Los Angeles Co. on label] 1 Comment
  RSA439760  Batis maritima Anstruther Davidson 1902-9-1 s.n. Orange Newport Beach Comment
  RSA609049  Batis maritima L. C. Wheeler 1932-6-25 858 Orange Newport Bay. 1 Comment
  RSA1358  Bebbia juncea B. D. Stark 1929-11-2 651 Orange Along railroad track, Rancho Santa Ana 152 Comment
  RSA734857  Bebbia juncea A. C. Sanders, Mitch Provance 2008-5-20 35404 Orange Lomas de Santiago area, Santiago Creek Canyon, c. 3/4 mile below Modjeska Canyon confluence 345 Comment
  CAS-BOT-BC106423  Bebbia juncea var. aspera John Thomas Howell 1927-6-2 2412 Orange Southern Puente Hills in teh Santa Ana Canyon [Canon] 152 Comment
  CAS-BOT-BC106425  Bebbia juncea var. aspera C. B. Wolf 1931-7-25 2295 Orange North of Pear Orchard, Rancho Santa ana, Santa Ana Can. 121 Comment
  UCSB48366  Berberis aquifolium var. dictyota Roberts, Jr., Fred 1982-4-18 Orange Santa Ana Mtns.; Hot Springs Canyon, 0.6 km. SW Falcon Group Camp 1033 Comment
  CLARK-A1528-3075  Bloomeria crocea Michelle Loef 1973-5-25 250573-4 Orange Brea 91 Comment
  UC1090423  Bloomeria crocea Milo S. Baker 1958-5-20 13306 Orange Newport Bay Comment
  CSUSB15  Bloomeria crocea Randy Salstrom 1966-5-8 050866 73 Orange Fullerton area, 100 yards north of the corner of Mariann Ave. and Harbor Blvd. on Harbor Blvd. Comment
  RSA652654  Bloomeria crocea Diane T. Liggett 1981-5-16 3 Orange Riverside Freeway (91) east to Imperial Hwy, south to Nohl Ranch Road, east to Serrano Ave., south on Hidden Cyn. Road, .5 km into Weir Cyn. Comment
  UCD139090  Bloomeria crocea Earl Brown; Tracy Brown 1993-5-2 s.n. Orange San Clemente State Beach, located about 200' SW of main entrance. 60 Comment
  RSA0012750  Bloomeria crocea var. crocea Fred M. Roberts 2012-5-10 7575 Orange San Joaquin Hills: Buck Gully, south tributary, north slope Pelican Hill, just north of Pelican Hills Drive, 0.7 km N Pelican Hill summit. 154 Comment
  RSA542343  Bloomeria crocea var. crocea Fred M. Roberts, Carol A. Williams 1988-4-12 3923 Orange Lomas de Santiago: Loma Ridge, 3.3 km NW Bolero Lookout. 475 Comment
  RSA699326  Bloomeria crocea var. crocea Fred M. Roberts 2003-5-1 5678 Orange Rancho Mission Viejo: Donna O Neill Land Conservancy, Cristianitos Cyn., 0.5km SSW Gato Gate and 0.1km west of Cristianitos Rd. 99 Comment
  CAS-BOT-BC434510  Boerhavia diffusa E. Dudley 1939-8-24 s.n. Orange Unspecified Comment
  UCSB52906  Bolboschoenus maritimus Roberts, Fred 1984-8-6 Orange Irvine: UC Irvine, along Abode Circle Road; 0.9 km. ENE campus center; 2.3 km. W French Hill 30 Comment
  CHSC30499  Bolboschoenus maritimus subsp. paludosus Diane H. Ikeda 1980-4-2 216 Orange Upper Newport Bay Ecological Reserve. At the intersection of Back Bay Drive and San Joaquin Rd. 0 Comment
  UCR102034  Bolboschoenus maritimus subsp. paludosus B. G. Pitzer 1997-4-15 3137 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
  CAS-BOT-BC145863  Bothriochloa barbinodis John Thomas Howell 1927-6-5 2437 Orange Southern Puente Hills, Santa Ana Canon [Canyon]. 152 Comment
  RSA37  Bothriochloa barbinodis J. T. Howell 1927-6-5 38 Orange Rancho Santa Ana, near east boundary. 152 Comment
  UCR174231  Bothriochloa barbinodis A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33056 Orange Peninsular Range; Santa Ana Mtns., San Juan Canyon, from Lower San Juan Picnic Area to c. 1 mile downstream, parallel to Hwy 74 and near Riverside Co. line 396 Comment
  UCR192080  Bothriochloa barbinodis A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35281 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir 300 Comment
  POM294343  Bowlesia incana Lyman Benson 1947-4-27 12341 Orange Carbon Canyon. Chino-Puente Hills; Pacific Slope Drainage Area. 244 Comment
  RSA520  Bowlesia incana J. T. Howell 1928-2-26 853 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  UCR158030  Brachypodium distachyon Adrian Wolf 1998-5-15 286 Orange South Coast, Dana Point Headlands, north of Scenic Dr. 67 Comment
  UCR170257  Brachypodium distachyon Scott D. White, Jennifer H. Jones 2005-4-26 10973 Orange Laguna Beach area., City of Laguna Beach. 549 Nyes Place. Undeveloped lot within a residential neighborhood. Proposed for new home Comment
  IRVC1050  Brassica nigra L. McCabe 1965-4-21 Orange Corona del Mar. Newport Beach Comment
  CAS-BOT-BC36766  Brassica rapa Ira L. Wiggins 1965-11-3 20315 Orange Just east of California State College campus, Fullerton. Comment
  CAS-BOT-BC36767  Brassica rapa Ira L. Wiggins 1965-11-7 20359 Orange Vacant lot between State College Boulevard and Troy High School campus, Fullerton. Comment
  POM322  Brassica rapa J. T. Howell 1928-1-15 805 Orange Near the Ranch House. Rancho Santa Ana. 152 Comment
  UCR112098  Brassica rapa subsp. sylvestris A. C. Sanders, D. Malueg, K. D. Jones 2000-4-19 23339 Orange Pacific Coast, Bolsa Chica Lagoon, along dirt roads in oil field, east of Hwy 1, east of Bolsa Chica St. 11 Comment
  UCR132993  Briza minor Adrian Wolf 2001-7-16 456 Orange Santa Ana Mtns., North Ranch Policy Plan Area, North Baker Canyon Road 305 Comment
  IRVC26707  Brodiaea orcuttii Mark A. Elvin 2004-6-18 3524 Orange UCI Arboretum Southern Coastal 15 Comment
  CAS-BOT-BC144300  Bromus arizonicus Ira L. Wiggins 1966-3-1 20482 Orange Margin of grain field along western edge of campus, California State College at Fullerton. Comment
  RSA184176  Bromus arizonicus I. L. Wiggins 1966-4-22 20617 Orange Along Associated road between Yorba Linda Boulevard and Imperian Highway. Comment
  CAS-BOT-BC149277  Bromus carinatus var. carinatus Steve Boyd; Tim Ross 1992-5-19 7417 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of the wilderness along Lucas Canyon Trail from access road to Rancho Cordillo (7S06) north into Aliso Canyon. 457 Comment
  RSA542560  Bromus carinatus var. carinatus Fred M. Roberts, Karlin G. Marsh 1987-5-14 3442 Orange NSanta Ana Moutains: Upper Trabuco Canyon, Trabuco Canyon Trail , 1.3 km NNE Los Pinos Peak 1192 Comment
  POM1272  Bromus catharticus C. B. Bradshaw s.n. Orange Orange. Comment
  RSA6129  Bromus catharticus C. B. Wolf 1932-6-13 3727 Orange Fullerton, Rose Drive 53 Comment
  RSA653209  Bromus catharticus David Barrios 1991-5-8 27 Orange 1500 ft. Northwest of Fairmont Ave and Quail cir. 365 Comment
  RSA598967  Bromus hordeaceus Scott D. White 1997-3-28 4845 Orange Santa Ana Mountains: above Modjeska Canyon, proposed water tank site. 427 Comment
  RSA732235  Bromus hordeaceus A. C. Sanders, Fred M. Roberts 2008-4-22 35041 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
  UCR149408  Bromus hordeaceus Jeffrey Ross, Roselinde Zaka 1998-5-2 Orange South Coast, North side of San Joaquin Hills; William R. Mason Regional Park, near intersection of Yale Avenue and University Drive 27 Comment
  RSA713565  Bromus inermis subsp. inermis R. E. Riefner Jr. 2005-10-1 5 -702 Orange City of Costa Mesa, South Coast Dr. at Susan Rd. 16 Comment
  UCR192067  Bromus madritensis A. C. Sanders, Fred M. Roberts 2008-5-6 35251 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
  CHSC61249  Bromus madritensis subsp. rubens T. B. Devine 1980-4-4 654 Orange Huntington Beach, Edinger Ave. ca 1.5 mi w of Jct with Bolsa Chica Rd. Roadside. Comment
  RSA702985  Bromus rubens D. E. Bramlet, Fred M. Roberts 2003-3-13 3335 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
  RSA0065566  Buddleja asiatica Doug Bell 1949-1-29 s.n. Orange Garden Grove. 182 Comment
  UC124604  Cakile edentula A. Davidson, M. D. 1908-5-2 1789 Orange s Newport Bay Newport Bay Comment
  UCR113453  Calamagrostis koelerioides R. E. Riefner Jr. 2000-6-22 20- 572 Orange Santa Ana Mountains, North Ranch Policy Plan Area, NE property, along National Forest boundary, at powerline 756 Comment
  RSA737897  Calandrinia breweri R. E. Riefner 2008-5-20 08 -104 Orange Irvine Ranch Reserve, N Irvine Ranch, Wetern Fremont Canyon, Windy Ridge Road. 531 Comment
  UCR203899  Calandrinia breweri R. E. Riefner Jr. 2008-4-15 08- 72 Orange Irvine Ranch Reserve, north Irvine Ranch, western middle Fremont Canyon area, Coalmine SCE Road 353 Comment
  RSA737235  Calandrinia breweri R. E. Riefner 2008-4-15 08 -70 Orange Irvine Ranch Reserve, North Irvine Ranch, S of Windy Ridge Rd. ca. 0.5 mi from West Forst of upper Fremond Canyon. 496 Comment
  RSA732277  Calandrinia ciliata A. C. Sanders, Fred M. Roberts 2008-4-22 35043 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
  UCR192501  Calandrinia ciliata A. C. Sanders, Fred M. Roberts 2008-3-25 34548 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  UCR217453  Calandrinia ciliata Mark A. Elvin 2003-1-26 2231 Orange South Coast, Irvine, UC Irvine Open Space Preserve, NE side, between core of UCI campus (E Peltason Dr.) and Hwy 73 69 Comment
  CAS-BOT-BC438320  Calandrinia ciliata Ira L. Wiggins 1966-3-5 20508 Orange Along Highway S-18, about 4.5 mi. E. of Laguna Beach. Comment
  CDA5114  Callistemon viminalis R. E. Riefner Jr. 2007-3-18 07 -139 Orange City of Newport Beach, north shore of Newport Bay, North Star Beach, general vicinity of North Star Lane and Polaris Drive. Comment
  RSA756071  Callistemon viminalis T. B. Salvato, Billy Deane 2006-10-16 1942 Orange Irvine, San Diego Creek flood control channel, between Michelson Driveand the 405 Fwy. 9 Comment
  SEINET6654150  Callistemon viminalis R. E. Riefner Jr. 2006-11-14 06 -674 Orange City of Irvine, San Diego Creek, vicinity of Campus Ave at University Dr.; 0 5 Comment
  UCR210367  Callistemon viminalis T. B. Salvato, Billy Deane 2006-10-16 1942 Orange South Coast, Irvine, San Diego Creek flood control channel, between Michelson Drive and the 405 FWY 12 Comment
  CDA5113  Callistemon viminalis R. E. Riefner Jr. 2007-3-18 07 -113 Orange City of Newport Beach, south shore of Newport Bay along Back Bay Drive, ca. 1 mile north of San Joaquin Hills Road. Comment
  RSA724030  Callistemon viminalis R. E. Riefner Jr. 2006-11-14 6 -674 Orange City of Irvine, San Diego Creek; vicinity of Campus Ave. at University Dr. 5 Comment
  SBBG133368  Callistemon viminalis R. E. Riefner Jr. 2007-4-1 07 -163 Orange Oso Crk, ca. 1.5 mi N from Paseo de Colinas St on Camino Capistrano St; City of Laguna Niguel 87 Comment
  POM11615  Callitriche marginata P. A. Munz 1921-4-12 4479 Orange Laguna Beach; 1 mile north of Laguna on bluff near clubhouse. 61 Comment
  RSA610237  Callitriche marginata Fred M. Roberts, Tony Bomkamp, R. E. Riefner 1997-2-27 4979 Orange Costa Mesa: Fairview Park, 0.1 km W Canyon School. 24 Comment
  RSA703700  Calochortus albus Fred M. Roberts 2003-4-20 5657 Orange Santa Ana Mtns.: San Juan Canyon, SR 74, south side of road, 3.54 km by road E San Juan Guard Station; 3.08km WNW Sitton Peak. 361 Comment
  RSA539345  Calochortus catalinae Fred M. Roberts 1988-2-9 3781 Orange Lomas de Santiago: Loma Ridge, 1.5 km N Bee Survey Mark. 381 Comment
  RSA582810  Calochortus catalinae Mark Elvin 1995-05 4 Orange Santa Ana Mountains: Starr Ranch, National Audubon Society; Bell Creek, junction of Leslie Love Trail. 213 Comment
  RSA582819  Calochortus catalinae Mark Elvin, Adrian Wolf 1995-6-15 56 Orange Crystal Cove State Park, back country: Moro Canyon. 61 Comment
  RSA653190  Calochortus catalinae David Barrios 1991-5-1 14 Orange Yorba Linda: 1500 ft. NW of Fairmount Avenue & Quail Circle. 366 Comment
  RSA741482  Calochortus catalinae R. E. Riefner 2008-4-20 8 -66 Orange On Loma Ridge, near city of Irvine, E side of Hicks Haul Rd., Irvine Ranch Reserve, Management Area 11. Comment
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Feb 2 2011
  RSA741727  Calochortus catalinae R. E. Riefner 2008-4-15 8 -71 Orange Irvine Ranch Reserve, Fremont Canyon Conservation Easement, W Fremont Canyon, lower Coalmine SCE Rd. 301 Comment
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Jul 2 2014
  RSA750699  Calochortus catalinae D. E. Bramlet 2008-3-26 4124 Orange Bee Cyn. Bowerman landfill site. 148 m S of the Bee Cyn Access Road, 296 m W of the landfill entrance. Comment
  RSA753418  Calochortus catalinae D. E. Bramlet 2008-3-31 4136 Orange 223m E of Upper Hicks Haul Rd, Trib. to Limestone Cyn, 1km S of Santiago Cyn Rd. 328 Comment
  RSA777234  Calochortus catalinae Orlando Mistretta, Christine Mistretta 2010-4-23 5073 Orange Vicinity of Tonner Cyn. Along Southern Califonia Edison Transmission Line corridor (Segment 8, map sheet 83 per TRTP survey 2010) 338 Comment
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Feb 24 2018
  RSA788917  Calochortus catalinae Fred M. Roberts 1999-6-10 5239 Orange Lomas de Santiago: Loma Ridge, Agua Chinon Cyn., 1.3 km S Bolero Spring and 2.2 km W Bolero Lookout. 285 Comment
  UCR191243  Calochortus catalinae A. C. Sanders 2008-4-29 35136 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, western end of Loma Ridge on road to sheriff's training facility, c. 1.5 mi. SW of Santiago Reservoir 335 Comment
  UCR192103  Calochortus catalinae A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35289 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir 300 Comment
  RSA732148  Calochortus splendens A. C. Sanders, Fred M. Roberts 2008-4-22 35013 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
  RSA788918  Calochortus splendens Fred M. Roberts 1999-6-10 5240 Orange Lomas de Santiago: Loma Ridge, Central Limestone Cyn., adjacent to the Sinks, 0.7 km E Bolero Spring and 1.9 km NW Bolero Lookout. 411 Comment
  UCR150612  Calochortus splendens Scott D. White 1997-5-6 5046 Orange Peninsular Ranges; Santa Ana Mountains, Lomas de Santiago. Santiago Canyon area: Ridgetop road N and west of Bolero Lookout 488 Comment
  CAS-BOT-BC492701  Calochortus splendens Philip A. Munz 1949-5-26 13371 Orange Skyline Drive, at head of Sierra Canyon; Santa Ana Mountains 762 Comment
  RSA49099  Calochortus splendens Philip A. Munz 1949-5-26 13371 Orange Head of Sierra [Freemont] Canyon, Santa Ana Mountains 762 Comment
  RSA729799  Calochortus weedii Robert F. Thorne 1963-7-26 23839 Orange Tin Mine Canyon above Beeks Spring, Trabuco District, Cleveland National Forest 854 Comment
  CAS-BOT-BC132657  Calochortus weedii var. intermedius D. Bramlet 1994-6-23 2392 Orange San Joaquin Hills. On ridgeline between Camarillo and Shady Canyons. The site is located 1.5 km west of Laguna Cyn. and 183 m SE of the Shady-Camarillo Cyn. Road junction 244 Comment
  POM256710  Calochortus weedii var. intermedius W. Pequegnat 1940-6-14 s.n. Orange Yaeger's Meadow, Santa Ana Mountains. Comment
  RSA0014077  Calochortus weedii var. intermedius Fred M. Roberts 2008-5-27 7003 Orange Lomas de Santiago: Loma Ridge, Hicks Cyn., c.a. 0.2km beyond Hicks Cyn., Gate, 2.2km WNW Bee Peak, Irvine Ranch conservancy 213 Comment
  RSA131397  Calochortus weedii var. intermedius E. K. Balls 1958-6-27 23278 Orange Silverado Canyon, Santa Ana Mountains, 2.8 miles E from Silverado Station. 732 Comment
  RSA20925  Calochortus weedii var. intermedius E. R. Johnson 1937-7-10 9019 Orange Chino-Puente Hills, NW. of La Vida Springs (Mrs. Bryants Property) Comment
  RSA741725  Calochortus weedii var. intermedius R. E. Riefner 2008-6-3 8 -138 Orange Irvine Ranch Reserve, Fremont Canyon Conservation Easement, E fork Fremont Canyon, Black Star SCE Rd. 622 Comment
  SBBG19551  Calochortus weedii var. intermedius H. F. Copeland 1938-6-29 1574 Orange back of Laguna Beach Comment
  UC1952572  Calochortus weedii var. intermedius D. Bramlet 1994-6-2 2378 Orange San Joaquin Hills. On ridgeline north of Little Sycamore Canyon. The site is located 244 m NE of Little Sycamore Canyon and 1.3 km west of Laguna Cyn. Road. Comment
  UCR133200  Calochortus weedii var. intermedius Adrian Wolf 2000-6-19 462 Orange Santa Ana Mtns., North Ranch Policy Plan Area, 'panhandle' south of Black Star Canyon, east of Black Star Road, north of Baker Canyon 396 Comment
  UCR203906  Calochortus weedii var. intermedius R. E. Riefner Jr. 2008-6-3 08- 138 Orange Santa Ana Mountains, Irvine Ranch Reserve, Fremont Canyon Conservation Easement, east fork of Fremont Canyon, Black Star SCE Road 622 Comment
  POM351397  Calycadenia tenella M. B. Dunkle 5379 Orange San Juan Canyon Comment
  RSA16426  Calycadenia tenella Percy C. Everett 1935-5-19 6878 Orange Santa Ana Mts, Baker Canyon, W Ladd Truck Trail 305 Comment
  RSA696923  Calycadenia tenella Minor Warne 1934-4-21 s.n. Orange Limestone Canyon. Comment
  RSA795  Calycadenia tenella J. T. Howell 1927-7-28 511 Orange Nolina Canyon, Rancho Santa Ana 152 Comment
  UCR191011  Calystegia macrostegia A. C. Sanders, Fred M. Roberts 2008-4-22 35016 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hicks Canyon haul road, just above Irvine Ranch gate and road to cement plant, c. 1 mile NE of Rattlesnake Reservoir 244 Comment
  RSA598972  Calystegia macrostegia subsp. arida Scott D. White 1997-3-28 4843 Orange Above Modjeska Canyon, proposed water tank site. 425 Comment
  SEINET7072487  Calystegia macrostegia subsp. cyclostegia A. G. Vestal 1963-3-27 s.n. Orange About 1.8 miles up Cai+-ada Gobernadora. Coordinate datum: NAD27. Comment
  JEPS47827  Calystegia sepium subsp. binghamiae L. M. Booth 1932-8-5 1359 Orange Huntington Beach Comment
  UCR203973  Camissonia D. E. Bramlet 2008-3-26 4120 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
  HSC16412  Camissonia bistorta J. W. Johnson 1961-3-29 Orange Newport Beach, slope overlooking Upper Newport Bay. Comment
  RSA16353  Camissonia bistorta Percy C. Everett 1935-6-18 s.n. Orange Santa Ana Mountains. Main divide motorway to Santiago Peak, 1 mile from Ortega Highway. 732 Comment
  RSA732249  Camissonia californica A. C. Sanders, Fred M. Roberts 2008-4-22 35002 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
  UCR261696  Camissonia californica Dick Newell, Don Millar 2015-5-12 403 Orange Peninsular Range; Santa Ana Mtns. Foothills, Agua Chinon Wash, 1 mile NE of Portola and the 241 Toll Rd./Foothill Transp. Corridor 245 Comment
  SEINET7073419  Camissonia campestris A. G. Vestal 1963-4-24 s.n. Orange La Paz Canyon, Rancho Mission Viejo. Coordinate datum: NAD27. Comment
  CSUSB188  Camissonia cheiranthifolia subsp. suffruticosa Cesareo Perez 1971-5-12 Orange Huntington State Beach, Pacific Coast Highway at Brookhurst Comment
  RSA72261  Camissonia cheiranthifolia subsp. suffruticosa F. W. Peirson 1924-5-31 4670 Orange 5 miles southeast of Laguna Beach. Comment
  UCR151388  Camissonia cheiranthifolia subsp. suffruticosa Valerie Soza, Kevin Clark, , LeRoy Gross, Will Miller, Fred M. Roberts, G. D. Wallace 2001-4-4 1111 Orange Coastal Plains & Basins; Los Angeles Basin region, Anaheim Bay: Seal Beach U. S. Naval Weapons Station, southwestern edge of Seal Beach National Wildlife Refuge. 3 Comment
  UCR267189  Camissonia cheiranthifolia subsp. suffruticosa Fred M. Roberts 2010-3-12 7181 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
  RSA539379  Camissonia hirtella Fred M. Roberts, C. A. Roberts 1988-6-2 4036 Orange Santa Ana Mountains: Silverado Canyon. Maple Springs Truck trail. 4.3 km above gate, 1.0 km WSW Bald Peak. 817 Comment
  UCR237914  Camissoniopsis bistorta Dick Newell, Don Millar 2012-6-5 270 Orange Peninsular Range; Santa Ana Mtns., Loma Ridge East, 0.35 mi. due east of Hicks Haul Rd. 411 Comment
  SEINET5344150  Camissoniopsis cheiranthifolia N. J. Hartke 1953-4-2 12 Orange Balboa Beach Comment
  JEPS31488  Camissoniopsis cheiranthifolia subsp. suffruticosa L. M. Booth 1932-5-25 1114 Orange Balboa Island Newport Bay Comment
  SD87558  Camissoniopsis cheiranthifolia subsp. suffruticosa F. W. Peirson 1924-5-31 4670 Orange 5.0 miles south of Laguna; on sea bluffs. Comment
  UC523554  Camissoniopsis cheiranthifolia subsp. suffruticosa David D. Keck 1933-9-21 2523 Orange dunes about town Sunset Beach Comment
  UC635392  Camissoniopsis cheiranthifolia subsp. suffruticosa H. L. Mason 1926-4-25 2918 Orange 5 mi s Laguna Comment
  UC635404  Camissoniopsis intermedia H. L. Mason 1926-4-25 2930 Orange 5 mi s Laguna Comment
  CAS-BOT-BC160536  Camissoniopsis lewisii Peter H. Raven 1962-4-29 17490 Orange Lower edge of Cleveland National Forest just above San Juan Guard Station Comment
  CAS-BOT-BC37127  Capsella bursa-pastoris Ira L. Wiggins 1966-2-25 20476 Orange Firestone Boy Scout Reservation, east of Brea. Comment
  UCR191439  Capsella bursa-pastoris A. C. Sanders, Fred M. Roberts 2008-4-8 34721 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, head of Hicks Canyon, S of Santiago Reservoir 351 Comment
  CSUSB653  Cardamine californica R. Cooper 1968-2-11 S. N. Orange San Joaquin Hills, near Laguna Beach Comment
  POM369329  Cardamine californica var. integrifolia M. B. Dunkle 1934-2-19 3843 Orange San Juan Creek 305 Comment
  RSA2078  Cardamine californica var. integrifolia C. B. Wolf 1931-3-6 1851 Orange Trabuco Canyon at Trabuco Camp Grounds, west slope of Santa Ana Mountains. 610 Comment
  RSA369328  Cardamine californica var. integrifolia Albert J. Perkins 1913-3-6 s.n. Orange San Juan Hot Springs Comment
  UCR237835  Cardamine flexuosa Mark A. Elvin 2003-2-2 2298 Orange South Coast, UC Irvine Arboretum, UCI campus SSE of intersection of Jamboree Blvd. and Campus Dr. 17 Comment
  RSA747710  Cardionema ramosissimum Fred M. Roberts 2008-4-16 6913 Orange Dana Point: Dana Point Headlands, CNLM Preserve, 0.8 km W Marine Institute, Dana Point Harbor. 60 Comment
  UC1543081  Cardionema ramosissimum Donald G. Nelson 1935-4-14 288 Orange mesa facing Newport Bay (along main coast hwy., Newport Beach); Newport Beach Comment
  UCR79247  Carduus pycnocephalus Steve Boyd, T. Ross 1992-5-19 7427 Orange Santa Ana Mtns., San Mateo Wilderness Area. Lucas Canyon Trail. 412 Comment
  CAS-BOT-BC17635  Carex alma Helen D. Geis 1902-1-1 503 Orange Near Santa Ana. Comment
  RSA788972  Carex barbarae Robert F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49573 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74) Comment
  RSA88648  Carex barbarae F. W. Peirson 1924-2-9 4524 Orange Between Wintersberg and the sea. Comment
  UCR13444  Carex barbarae J. M. Pearia 1973-5-13 730513 4 Orange Peninsular Range; Santa Ana Mtns., c. 14 mi east of San Juan Capistrano on Hwy 74 along the bank of San Juan Creek 244 Comment
  POM193572  Carex praegracilis Helen D. Geis 1902-1 505 Orange Orange County. Comment
  CAS-BOT-BC118486  Carex praegracilis Helen D. Geis 1902-4-1 s.n. Orange Peat Lands Comment
  UCSB48106  Carex spissa Fritzke, S.; Roberts, Fred 1982-4-3 Orange Santa Ana Mtns.: Lower Hot Springs Canyon; Lazy W Road; 2.4 km. N by road; San Juan Guard Station; 1.4 km. NNW Juan Rancho Survey Mark 240 Comment
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Mar 18 2011
  RSA696447  Carpobrotus chilensis Minor Warne 1934-4-7 s.n. Orange New Port Beach Comment
  IRVC21981  Carpobrotus edulis B. Parry 1985-6-4 194 Orange [Crystal Cove State Park], bank below trailers at far end of trailer park above creek, San Joaquin Hills 40 Comment
  CDA6923  Carthamus creticus M. K. Bellue 1945-5-8 Orange Tonner Canyon - Union Oil. 0 Comment
  CAS-BOT-BC281886  Carthamus lanatus E. L. Paddock 1941-7-21 s.n. Orange Ridge Road along S rim Tonner Canyon, 1 mile NE of Brea on Union Oil Property, Brea Comment
  POM193492  Castilleja affinis Helen E. Sweet 1928-08 s.n. Orange Santiago Canyon. Comment
  RSA1701  Castilleja affinis Carl B. Wolf 1931-3-6 1836 Orange Trabuco canyon, 1/2 mile above Trabuco Oaks, west slope of Santa Ana Mountains. 457 Comment
  RSA734016  Castilleja affinis A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34609 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir. 366 Comment
  RSA734649  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
  RSA0010908  Castilleja affinis Keith E. Hoffmaster 1927-4-8 530 Orange Santa Ana Mountains. Comment
  JEPS57258  Castilleja affinis subsp. affinis L. R. Heckard and R. C. Bacigalupi 1968-5-8 1839 Orange ca 6 mi e Orange; Irvine County Park 152 Comment
  RSA698982  Castilleja douglasii Stephen Bruff s.n. Orange Lemon Hights. Comment
  UC1552001  Castilleja exserta Lyman Benson 1946-4-27 12052 Orange Corona del Mar; Ocean Bluff 15 Comment
  UCSB47597  Castilleja exserta subsp. exserta Roberts, Fred 1980-5-3 Orange 0.1km NE Falcon Group Camp; Santa Ana Mtns 1012 Comment
  RSA19418  Castilleja foliolosa I. W. Clokey 1932-3-1 5342 Orange Laguna Beach. Comment
  SBBG104116  Castilleja foliolosa B. Pitzer, S. Hemstreet 1992-5-27 1953 Orange USFS Rd 3S04 to Blue Jay Group Cmpgrd, off St Hwy 74, ca. 2 air mi W of El Cariso Cmpgrd 762 Comment
  UCR241667  Castilleja foliolosa Dick Newell, Judy Booth 2013-6-2 333 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, Maple Springs Rd., 2.24 miles NE of Flores Peak 645 Comment
  UCR52606  Castilleja foliolosa Jeri Hirshberg 1988-6-7 s.n. Orange Santa Ana Mountains, Santa Ana Mountains 275 Comment
  UC885188  Castilleja foliolosa I. W. Clokey 1932-3-1 5342 Orange Laguna Beach Comment
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Aug 31 2016
  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
  RSA0045577  Castilleja parviflora Minor Warne 1934-03 s.n. Orange Gypsum Canyon. Comment
  RSA702801  Caulanthus heterophyllus D. E. Bramlet, Fred M. Roberts 2003-5-1 3429 Orange Donna O Neill Reserve. The site is 412m N of Gato Cyn. and 107m W of Cristianitos Rd. 134 Comment
  CAS-BOT-BC48491  Ceanothus crassifolius T. Cass 1975-4-11 74 -671 Orange Southside Baker Canyon at Santa Ana Nat. forest boundary. 396 Comment
  UCR220303  Ceanothus crassifolius Dick Newell, Don Millar 2010-3-2 009 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lakeview Rd. at junction with Edison Rd., c. 1.9 mi. NE of Irvine Lake 625 Comment
  UCSB31585  Ceanothus crassifolius Proctor, Donald 1962-3-18 Orange Silverado Canyon, Santa Ana Mts, 914 Comment
  SBBG47469  Ceanothus crassifolius var. crassifolius M. B. Dunkle 1935-3-3 4354 Orange upper San Juan Cyn 762 Comment
  RSA17220  Ceanothus integerrimus var. puberulus Carl B. Wolf 1936-6-22 8002 Orange Santa Ana Mts. Slopes of Modjeska Pk. at abouit the Head of Harding Canyon. 1220 Comment
  RSA678517  Ceanothus integerrimus var. puberulus Fred M. Roberts, Kirsten Winter, Leanne Naue 1997-6-5 5040 Orange Santa Ana Mtns,: Santiago Peak, Main Divide Truck Trail at Orange-Riverside County line, 0.5km N summit. 1659 Comment
  RSA798602  Ceanothus leucodermis Robert F. Thorne, E. W. Lathrop 1977-5-18 49741 Orange Santa Ana Mountains: summit of Santiago Peak. 1733 Comment
  JEPS42110  Ceanothus megacarpus John Thomas Howell 1927-6-26 2609 Orange just w Sierra Peak (head of Calymine Canyon); Santa Ana Mts. Comment
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May 8 2008
  RSA21484  Ceanothus megacarpus E. R. Johnson 1936-3-16 8312 Orange Rancho Santa Ana, Santa Ana Canyon. So. of Ranch Buildings 122 Comment
  RSA542585  Ceanothus megacarpus var. megacarpus Fred M. Roberts 1989-2-23 4188 Orange Aliso-Wood Canyon Regional Park: Niguel Hill above Aliso Canyon along the northern edge of Sea View Pk., 1.2km ENE Aliso Pk. 250 Comment
  RSA548859  Ceanothus megacarpus var. megacarpus Fred M. Roberts 1988-3-9 3840 Orange Aliso-Wood Canyons regional Park: Niguel Hill, Seaview Park, 1.0km ENE Aliso Peak. 273 Comment
  SBBG45051  Ceanothus megacarpus var. megacarpus J. T. Howell 1927-6-26 228 Orange Claymine Cyn near Sierra Pk 701 Comment
  RSA95352  Ceanothus oliganthus F. W. Peirson 1923-5-6 3494 Orange Trail to Santiago Peak from Holy Jim Canyon. 991 Comment
  SD255267  Ceanothus oliganthus Robert F. Thorne, E. W. Lathrop 1977-5-18 49760 Orange Santa Ana Mountains: at head of Trabuco Canyon Trail. 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
  UCSB3954  Ceanothus oliganthus var. orcuttii Kamb, Peter 1948-6-19 Orange Holy Jim Canyon, Santa Ana Mts. 609 Comment
  LA44922  Ceanothus oliganthus var. sorediatus W. Pequegnat; 1938-5-6 sn Orange Santa Ana Mountains, Indian Truck Trail 944 Comment
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Aug 29 2015
  SEINET10634137  Ceanothus palmeri Greg Gust, Leith Nye 2005-3-12 Gust 563 Orange Cleveland National Forest, on Hwy 74 ca. 0.5 m W of county boundary with Riverside at a pullout. 401 Comment
  UC1071194  Ceanothus palmeri A. Lewis Mar 1934 364 Orange head of Silverado Canyon Corona Quad., head of Silverado Canyon Comment
  SBBG52714  Ceanothus papillosus C. Davidson 1977-5-18 5598 Orange Pleasant Pk, (on county line) 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
  UCD169753  Ceanothus papillosus var. roweanus R. F. Thorne; C. W. Tilforth, E. W. Lathrop 1977-4-27 49697 Orange Northern Santa Ana Mountains: Sierra Peak. 899 Comment
  CAS-BOT-BC53008  Ceanothus spinosus Carl B. Wolf 1936-6-17 7950 Orange Santa Ana Mts., along Ortega Highway, San Juan Canyon, 2/10 mi. W. of Riverside Co. line 274 Comment
  LA42099  Ceanothus spinosus W. Pequegnat; 1938-9-3 sn Orange Ortega Rd 365 Comment
  UC219276  Ceanothus tomentosus P. A. Munz and I. M. Johnston 1922-5-19 5311 Orange Santa Ana River Canyon 457 Comment
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Aug 8 2010
  RSA594879  Ceanothus tomentosus var. olivaceus Fred M. Roberts 1992-2-26 4834 Orange Santa Ana Mtns: ridge west of Black Star Canyon and north of confluence of Black Star Canyon and Santiago Canyon, 4.3 km ESE Irvine Lake spillway. 353 Comment
  UCR191220  Centaurea melitensis A. C. Sanders 2008-4-29 35140 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
  POM202165  Centaurea melitensis L. M. Booth 1932-5-26 1117 Orange Newport Bay. 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
  UCR154343  Centaurea repens Mark A. Elvin 2004-5-2 3404 Orange Southern Coastal, Irvine: San Joaquin Freshwater Marsh, near Campus and University Drives; 1.7 km (air) NNW UC Irvine campus center 3 Comment
  UCR174464  Centaurea solstitialis A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33063 Orange Peninsular Range; Santa Ana Mtns., San Juan Canyon, roadside of Hwy 74 c. 1 mile below (W of) Lower San Juan Picnic Area 396 Comment
  CDA7330  Centaurea solstitialis Robert L. Pope 1957-9-5 Orange 0 Comment
  RSA391514  Centaurium venustum M. B. Dunkle 1934-6-18 3993 Orange San Juan Canyon. 305 Comment
  IRVC14862  Centaurium venustum Gordon A. Marsh, Karlin G. Marsh 1976-7-8 s.n. Orange Santa Ana Mtns: Lower San Juan Picnic Grounds near Hwy 74 [Ortega Hwy]. Peninsular Ranges 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
  RSA761931  Centaurium venustum Suzanne Espino 2005-4-26 2 Orange Santa Ana Mountains, Caspers Wilderness Park, East Ridge Trial. Near water tank at E. 168 Comment
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Jun 6 2020
  RSA759266  Centranthus ruber Robert Allen, Reginald Durant 2008-5-9 s.n. Orange Silverado Canyon, USFS Maple Springs Forest Gate 562 Comment
  CAS-BOT-BC288840  Centromadia parryi subsp. australis D. Bramlet 1990-11-3 2064 Orange On the W side of Upper Newport Back Bay, some 50 m NW of the Delhi channel, approx 100 m SE of the end of University Drive and is located just above an alkaline marsh area 23 Comment
  CAS-BOT-BC288847  Centromadia parryi subsp. australis John Thomas Howell 1927-6-30 2615 Orange 7 miles E of Long Beach 15 Comment
  JEPS38140  Centromadia parryi subsp. australis L. M. Booth 1932-6-7 1169 Orange Newport Bay Comment
  UCR237987  Centromadia parryi subsp. australis D. E. Bramlet 2008-9-17 4306 Orange South Coastal Plain, Upper Newport Bay, West Mesa, 76 m east of Irvine Ave. & 305 m south of University Dr. 20 Comment
  UCR256927  Centromadia parryi subsp. australis Jeremiah George 2011-7-8 s.n. Orange Bolsa Chica Mesa, south central edge 8 Comment
  RSA0119680  Cerastium glomeratum Fred M. Roberts 2015-3-10 7925 Orange San Joaquin Hills: Niguel Hill, on ridge above Aliso Canyon ear end of Ceanothus Drive (Hangover House property), 0.4 km WNW summit Aliso Peak. 122 Comment
  RSA516  Ceratophyllum demersum J. T. Howell 1927-8-13 625 Orange Santa Ana River Bottom 152 Comment
  RSA708722  Cercocarpus betuloides Fred M. Roberts, Robert L. Allen, Chris Barnhill, Nancy Hatfield 2005-5-30 6226 Orange west slope of Modjeska Peak, Harding Canyon watershed, Main Divide Road, 0.46km W summit. 1670 Comment
  RSA539366  Cercocarpus minutiflorus Fred M. Roberts 1989-2-21 4182 Orange Aliso-Woods Canyon Regional Park: Niguel Hill, 1.6 km ENE Aliso Peak. 268 Comment
  RSA748168  Cercocarpus minutiflorus K. M. Meyer, A. Townesmith, T. Scott 2007-3-10 5 Orange Cleveland National Forest, 0.5 mi. N Main Divide Rd./NF3S04, off Hwy. 74. Elsinore Mtns., ridge top. 917 Comment
  POM351653  Chaenactis artemisiifolia M. B. Dunkle 1934-6-18 3978 Orange San Juan Canyon 457 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
  UCR234453  Chaenactis glabriuscula Dick Newell, Don Millar 2012-4-10 245 Orange Peninsular Range; Santa Ana Mtns., Lakeside Rd. just off Black Star Canyon Rd., near State Spur Rd. 260 Comment
  CAS-BOT-BC283937  Chaenactis glabriuscula var. glabriuscula Palmer Stockwell 1935-5-12 1222 Orange 7 miles E of San Juan Capistrano Comment
  CAS-BOT-BC284203  Chaenactis glabriuscula var. lanosa P. C. Everett 1935-5-17 6865 Orange 7/8 mi. E. of Atwood, S. side of Santa Fe railroad tracks 152 Comment
  RSA0008381  Chaenactis glabriuscula var. orcuttiana F. W. Peirson 1924-5-31 4671 Orange 5 miles southeast of Laguna Beach. Comment
  CDA21594  Chamaesyce albomarginata Mark A. Elvin, B. S. Herhus 2006-11-4 5255 Orange Southern Coastal; Huntington Beach; 1.5 km southwest of Wintersburg, southwest of junction Slater and Goldenwest; Shipley Nature Center. Comment
  RSA734740  Chamaesyce albomarginata L. C. Wheeler 1946-8-8 6225 Orange Imperial Highway 1/4 mi. west of Caroline Ave, 2 mi. east southeast of Brea. Comment
  CDA28633  Chamaesyce maculata Mark A. Elvin, D. G. Kelch 2006-12-9 5301 Orange Southern Coastal; Newport Backbay; Big Canyon, lower end. Comment
  RSA433500A  Chamaesyce polycarpa var. polycarpa M. B. Dunkle 1933-3-5 3089 Orange San Juan Canyon 304 Comment
  RSA70402  Chamaesyce serpillifolia F. W. Peirson 1924-10-19 5236 Orange Wintersberg Comment
  RSA797479  Chamaesyce supina R. F. Thorne 1977-11-21 49992 Orange Santa Ana Mountains: San Juan Canyon about 2 miles above San Juan Fire Station Comment
  POM9098  Cheilanthes newberryi P. A. Munz, R. D. Harwood 1920-4-24 3763 Orange Santa Ana Mountains, Sierra [Freemont] Canyon 366 Comment
  IRVC9289  Chenopodium album B. Gittins 1963-3-19 60 Orange 635 Joan. Costa Mesa Comment
  UCD97793  Chenopodium album Ira L. Wiggins 1966-5-25 20664 Orange Parkway along south side of Nutwood Lane, margin of CSCF campus, Fullerton. Comment
  RSA5506  Chenopodium album C. B. Wolf 1932-6-28 3760 Orange Bryant Ranch: along western half of north boundary of 40 acre Valencia orange grove at Bryant Ave. and Hansen Road. 9 Comment
  IRVC21735  Chenopodium ambrosioides Fred M. Roberts 1984-10-18 1423 Orange San Juan Canyon, 2.5km ENE San Juan Guard Station; 4.0km WNW Sitton Peak, Santa Ana Mountains 310 Comment
  JEPS59701  Chenopodium ambrosioides L. M. Booth 1932-7-25 1312 Orange Coastal Santa Ana River Comment
  RSA751427  Chenopodium berlandieri A. C. Sanders, Fred M. Roberts 2008-7-3 35676 Orange Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor. 365 Comment
  UCR193802  Chenopodium berlandieri A. C. Sanders, Fred M. Roberts 2008-7-3 35676 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor 415 Comment
  RSA234491  Chenopodium berlandieri var. sinuatum James Henrickson 1970-8-29 5304 Orange 3 miles NW of Huntington Beach; north end of Bolsa Chica Marsh near pasture. 0 Comment
  RSA678739  Chenopodium californicum Fred M. Roberts, Carol A. Roberts, Robert Allen 2003-5-11 5856 Orange Dana Point Headlands: 0.8km SSW Richard Henry Dana School north of Marguerita Drive 76 Comment
  UCR191466  Chenopodium californicum A. C. Sanders, Fred M. Roberts 2008-4-8 34774 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
  UCR209380  Chenopodium californicum Fred M. Roberts, Linda Farley 2008-3-28 7035 Orange Santa Ana Mountains, Upper Weir Canyon, Irvine Ranch Conservancy, east fork along ridge just west of SR 241, 3.4 km east of Robber's Peak 437 Comment
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Mar 23 2020
  RSA594870  Chenopodium macrospermum var. halophilum Fred M. Roberts Jr., W. R. Ferren, D. E. Bramlet 1991-11-29 4825 Orange Irvine: San Joaquin Freshwater Marsh, ca. 1.5 km NW center of U.C. Irvine Campus, ca. 5 km WNW French Hill. 2 Comment
  CHSC35781  Chenopodium murale James Henrickson 1972-10-21 8057 Orange Eastern Anaheim, 2 blocks E. of Imperial Hwy. along La Palma Ave., just N. of Santa Ana River. 60 Comment
  IRVC393  Chenopodium murale I. L. Wiggins 20332 Orange Chapman Ave. near Kraemer Rd.; abundant along road and scattered in orange grove. Placentia Comment
  IRVC394  Chenopodium murale D. DeVault 1965-3-4 Orange Newport Beach Comment
  RSA749362  Chenopodium murale Fred M. Roberts 2008-4-15 6901 Orange Lomas de Santiago: Loma Ridge, Lower Hicks Cyn., east ridge, Conservation Trail, 1.6 km ESE Rattlesnake Reservoir dam and 2.7 km WSW Bee Peak, Irvine Ranch Conservancy. 172 Comment
  UCR193780  Chenopodium murale A. C. Sanders, Fred M. Roberts 2008-7-3 35686 Orange Peninsular Range; Santa Ana Mtns., upper Weir Canyon, along Windy Ridge Rd. at huge sandstone boulder (visible on Google Earth), 1.3 mi. SE of Walnut Canyon Reservoir 314 Comment
  POM202236  Chenopodium murale L. M. Booth 1932-5-12 1000 Orange Newport Bay. Comment
  SD136860  Chenopodium murale Steve Boyd, Tim Ross 1994-9-14 8347 Orange San Mateo Canyon Wilderness Area of the Cleveland National Forest, Lucas Canyon Trailat stream crossing in Aliso Canyon. 341 Comment
  RSA5925  Chlorogalum pomeridianum Carl B. Wolf 1932-7-2 3828 Orange Carbon Canyon, 0.5 mile above La Vida Springs. 244 Comment
  CAS-BOT-BC497716  Chlorogalum pomeridianum Le Roy Abrams 1901-6-1 1782 Orange Laguna Comment
  UCSB50639  Chlorogalum pomeridianum Roberts, Fred 1982-7-7 Orange South Laguna; Niguel Hill, 1.4 km. ESE Aliso Peak; 2.6 km. SSW Niguel Fire Station 207 Comment
  CAS-BOT-BC191253  Chorizanthe fimbriata var. fimbriata P. C. Everett 1935-6-18 7197 Orange Santa Ana Mts., main divide motorway Los Pinos Potrero 914 Comment
  CAS-BOT-BC252772  Chorizanthe parryi var. fernandina Helen D. Geis 1902-1-1 541 Orange Santa Ana Comment
  UCR147627  Chorizanthe parryi var. fernandina Helen D. Geis 1902-3 541 Orange Coastal Plains & Basins; South Coastal Plain region, 'hills near Santa Ana Comment
  UCR126795  Chorizanthe polygonoides var. longispina Kristin Szabo 2001-5-29 s.n. Orange Santa Ana Mountains, Gypsum Canyon within boundary of Mountain Park project Comment
  RSA785186  Chorizanthe procumbens D. E. Bramlet 1983-5-28 1388 Orange Dana Point, 154 m SW of Pacifc Coast Highway 73 Comment
  CAS-BOT-BC255246  Chorizanthe staticoides Herbert L. Mason 1926-4-25 2913 Orange 5 miles below Laguna Comment
  RSA13173  Chorizanthe staticoides Percy C. Everett 1935-4-29 6711 Orange 7/10 of a mile west of Esperanza, Santa Ana canyon.. 152 Comment
  RSA188  Chorizanthe staticoides J. T. Howell 1927-6-8 55 Orange Botany Garden, Rancho Santa Ana. [original location] 152 Comment
  RSA690974  Chorizanthe staticoides Scott D. White, Michael Honer 2003-5-29 9423 Orange Santa Ana Mtn foothills: Rancho Mission Viejo. Hills above Canada Gobernadora, west side of canyon, ca. 1 air mile north of Ortega hwy. 91 Comment
  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
  IRVC23283  Chrysanthemum coronarium Karlin G. Marsh 1987-4-24 Orange east side of Hwy 74 along Carrillo Rd., near park boundary; roadside. Casper's Regional Park 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
  UCR93937  Chrysanthemum coronarium B. G. Pitzer 1996-4-30 2793 Orange San Joaquin Hills, Crystal Cove State Park, south of City of Irvine on State Hwy 1 (Pacific Coast Hwy) 15 Comment
  RSA818  Cichorium intybus J. T. Howell 1927-10-29 786 Orange Bryant Ranch near Long Beach. 15 Comment
  POM202172  Cirsium brevistylum L. M. Booth 1932-5-15 1199 Orange Santa Ana River, 1/2 miles from ocean Comment
  RSA0066515  Cirsium californicum R. H. McArthur 1934-5-19 s.n. Orange Trabuco Canyon. Comment
  CAS-BOT-BC280089  Cirsium occidentale var. californicum John Thomas Howell 1927-6-26 2593 Orange Claymine Canon [Canyon], n. Santa Ana Mts. 243 Comment
  UCR281520  Cirsium occidentale var. californicum Mitch Provance 2017-6-9 617- 93 Orange Coyote Hills, North Fullerton, East side of Gilbert St., 0.5 miles ENE of intersection with Castlewood Dr. 124 Comment
  POM352202  Cirsium occidentale var. occidentale M. B. Dunkle 1933-5-30 3582 Orange Santa Ana Canyon Comment
  RSA752816  Cirsium vulgare A. C. Sanders, Fred M. Roberts 2008-8-7 36000 Orange Weir Canyon at powerline crossing, 1.0 mi. (air) SSE of Walnut Canyon Reservoir 226 Comment
  UCR194997  Cirsium vulgare A. C. Sanders, Fred M. Roberts 2008-8-7 36000 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon at powerline crossing, 1.0 mi. (air) SSE of Walnut Canyon Reservoir 226 Comment
  UCR73109  Cirsium vulgare Scott D. White 1992-9-23 855 Orange Vicinity of Olinda, near city of Brea, immediately north of Carbon Canyon Road and east of Placentia Ave.; c. 1 mi. (airline) SSE of Tonner Canyon 183 Comment
  RSA783257  Clarkia J. D. Olmsted 1959-4-23 455 Orange Spring Trail at Beacon Pines Ranch; 9 miles SW of Corona. 762 Comment
  RSA458856  Clarkia bottae N. C. Cooper 1944-6-4 1347 Orange San Juan Canyon. 152 Comment
  RSA734638  Clarkia bottae A. C. Sanders, Fred M. Roberts, Amber O Neal, D. E. Bramlet 2008-5-9 35307 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, along old dirt road c. 1.25 mi. ESE of Walnut Cyn Reservoir. 340 Comment
  RSA448336  Clarkia rhomboidea Albert J. Perkins 1914-6-14 s.n. Orange Santiago Peak trail Comment
  UCR98130  Clarkia similis George K. Helmkamp, E. A. Helmkamp 1997-4-24 1657 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
  UCR220083  Claytonia parviflora Dick Newell, Don Millar 2010-3-2 005 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Limestone Canyon Rd. 50 m SE of Sandtrap cutoff, 0.2 mi. west of Santiago Canyon Rd. 294 Comment
  UCR224163  Claytonia parviflora subsp. parviflora Fred M. Roberts 2008-3-19 6779 Orange South Coast, Dana Point Headlands, Center for Natural Lands Mgmt. Preserve, 0.8 km west of the Marine Institute, Dana Point Harbor 45 Comment
  UC1125960  Clematis lasiantha H. E. Norton 1931-3-3 32 Orange 1 mi. s. Sierra Peak; Corona Quad. Comment
  CHSC116476  Clematis lasiantha R. F. Thorne; C. W. Tilforth, E. W. Lathrop 1977-4-27 49689 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  CAS-BOT-BC92555  Clematis ligusticifolia John Thomas Howell 1927-8-13 2984 Orange Santa Ana River bottom. Santa Ana Canon [Canyon]. 152 Comment
  POM201884  Clematis ligusticifolia L. M. Booth 1932-7-21 s.n. Orange Near Sunset Beach, Anaheim Marsh. Comment
  UCR237919  Clematis ligusticifolia Dick Newell, Judy Booth 2012-6-24 277 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, on Maple Springs Road 1.9 mi. NE of Maple Springs gate 817 Comment
  UCR242865  Clematis ligusticifolia Dick Newell, Judy Booth 2013-7-28 336 Orange Peninsular Range; Santa Ana Mtns., Maple Springs Rd., Cleveland National Forest, 2.25 miles due east of Lower Maple Springs gate 887 Comment
  RSA747621  Clematis pauciflora Fred M. Roberts 2008-4-16 6904 Orange Dana Point: Dana Point Headlands, CNLM Preserve, 0.8 km W Marine Institute, Dana Point Harbor. 45 Comment
  UCR209671  Clematis pauciflora Fred M. Roberts 2008-4-16 6904 Orange South Coast, Dana Point Headlands, Center for Natural Lands Mgmt. Preserve, 0.8 km west of the Marine Institute, Dana Point Harbor 45 Comment
  RSA607432  Cleome isomeris L. C. Wheeler 1932-6-25 868 Orange Newport Bay. 3 Comment
  RSA66687  Cleome isomeris F. W. Peirson 1924-2-10 4530 Orange southward from Corona del Mar. Comment
  JEPS117747  Clinopodium chandleri Mark A. Elvin, A. C. Sanders 2005-9-2 4499 Orange Santa Ana Mtns: Mouth of Lion Cyn, just up stream from Lower San Juan Campground. Comment
  POM78643  Cneoridium dumosum Albert J. Perkins 1914-3-8 s.n. Orange Laguna Beach. Comment
  RSA449086  Cneoridium dumosum Albert J. Perkins 1921-3-15 s.n. Orange Laguna Heights, hill S.W. of oil well. Comment
  RSA699998  Collinsia bicolor L. C. Hull 1934-4-15 s.n. Orange Laguna Hills Comment
  RSA408308  Collinsia heterophylla A. M. Johnson 1934-4-15 4402 Orange Carmen's Laguna Beach. Comment
  RSA305753  Collinsia heterophylla James R. Shevock 1313 Orange Newport Beach Bay. 11 Comment
  RSA408307  Collinsia heterophylla Anstruther Davidson 1920-6-1 3371 Orange Languna Beach 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
  RSA603353  Conium maculatum Scott D. White, Brian Leatherman 1997-6-12 5310 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
  RSA643431  Convolvulus arvensis R. D. Goeden, D. W. Ricker 1965-6-15 s.n. Orange Santiago Blvd., Villa Park. 91 Comment
  SD143549  Convolvulus arvensis R. D. Goeden, D. W. Ricker 1965-6-15 12482 UC Orange Santiago Blvd., Villa Park. 91 Comment
Read comments
Jul 11 2010
  RSA0045317  Convolvulus occidentalis G. Jentges 1932-4-9 s.n. Orange Hillsides near Orange Park Acres. Comment
  UCR85393  Convolvulus simulans H. Camp 1995-4-14 s.n. Orange Peninsular Range; Santa Ana Mtns., Caspers Park, 7 mi. east of San Juan Capistrano, west of Bell Creek 183 Comment
  RSA748269  Conyza bonariensis A. C. Sanders, Fred M. Roberts 2008-6-17 35512 Orange middle section of Weir Canyon, SSE of Walnut Canyon Reservoir 225 Comment
  CAS-BOT-BC133229  Conyza coulteri T. B. Salvato 2010-10-27 5139 Orange South Coast: Dana Point Headlands, Hilltop Park, north of Scenic Dr. and west of Green Lantern St., overlooking Dana Point Harbor 84 Comment
  UCR80037  Conyza coulteri Scott D. White 1992-10-20 970 Orange Vicinity of city of Brea, Immediately north of Carbon Canyon Rd & east of Placentia Avenue +-1mi (air) SSEof Tonner Canyon. 183 Comment
  CHSC22354  Cordylanthus maritimus Robert A. Schlising 1972-5-1 3017 Orange Upper Newport Bay, east of Costa Mesa; saltmarsh along Bayside Drive. Comment
  UC1532993  Cordylanthus maritimus subsp. maritimus Robert F. Thorne 1975-4-6 45586 Orange head Newport Bay Comment
  UCR20628  Cordylanthus maritimus subsp. maritimus A. C. Sanders 1974-6-19 939 Orange Upper Newport Bay 3 Comment
  RSA733933  Cordylanthus rigidus Keith E. Hoffmaster 1934-7-15 118 Orange Santa Ana Mts (Modjeska) Comment
  RSA797439  Cordyline australis John Murphy 1938-6-6 s.n. Orange Birch Park Comment
  SD236211  Corethrogyne filaginifolia A. C. Sanders, Fred M. Roberts 2008-9-18 36085 Orange Peninsular Range; Santa Ana Mtns. Foothills: Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge (El Toro 7.5'Q) 320 Comment
  UCR100456  Coronopus didymus B. G. Pitzer 1996-4-30 2767 Orange South Coast, Upper Newport Bay, Calif. Dept. Fish & Game Ecological Reserve, off (W of) Jamboree Road 6 Comment
  UCR217460  Coronopus didymus Mark A. Elvin 2003-2-23 2307 Orange South Coast, Irvine, San Joaquin Marsh along the berm of San Diego Creek 3 Comment
  HSC5419  Cotula australis C. L. Hitchcock, C. V. Muhlick 1964-3-17 23067 Orange 8 mi. E of Yorba Linda, Santa Ana Canyon. Comment
  SEINET2049834 Image available Cotula australis J. Harry Lehr 1973-4-21 910 Orange East Santa Anna Street west of State College Blvd, Anaheim CA Comment
  CAS-BOT-BC287222  Cotula australis Ira L. Wiggins 1966-3-5 20504 Orange Along Highway S-18, about 4.5 miles E of Laguna Beach Comment
  CAS-BOT-BC291357  Cotula coronopifolia Carl B. Wolf 1932-3-8 2692 Orange Sunset Beach at soutehrn limits of city 1 Comment
  CHSC101981  Cotula coronopifolia Sean P. Gallagher 1988-4-2 6 Orange W end of Bolsa Chica channel. 0 Comment
  UCR103791  Crassula connata Scott D. White 1997-2-19 4700 Orange Santa Ana Mtns, above Modjeska Canyon; proposed water tank site 488 Comment
  RSA3190  Crassula connata var. erectoides C. B. Wolf 1932-3-8 s.n. Orange 1/2 mile N of Corona del Mar, Newport Bay. 8 Comment
  POM201720  Cressa truxillensis L. M. Booth 1932-5-18 1052 Orange Newport Bay Comment
  RSA697347  Cressa truxillensis Keith E. Hoffmaster 1926-12-18 s.n. Orange Santa Ana Comment
  JEPS31071  Crocanthemum scoparium var. vulgare J. C. Aven 1931-6-30 Orange hill near Modjeska Home (10 mi e of El Toro) Comment
  IRVC21762  Croton californicus Fred M. Roberts 1984-11-27 1436 Orange Novia St. bridge over San Juan Creek, 0.6km S Bench Mark 133, San Juan Capistrano 31 Comment
  JEPS52469  Croton californicus Alice King Mar. 1908 Orange Anaheim Plain Comment
  UCR210063  Croton setiger A. C. Sanders, Fred M. Roberts, Jutta Burger 2009-10-21 37194 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Limestone Canyon, west of Limestone Canyon Rd. 366 Comment
  RSA0029036  Cryptantha Keith E. Hoffmaster 1934-4-8 137 Orange Santa Ana Mts. Comment
  RSA6632  Cryptantha clevelandii P. A. Munz, L. T. Street, G. Williams 1919-5-3 2619 Orange Santa Ana River Canyon. Comment
  IRVC22194  Cryptantha intermedia Fred M. Roberts 1985-4-8 1632 Orange San Joaquin Hills, Turtle Rock area, hill 1.1km SE French Hill, Irvine 196 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
  UCR241913  Cryptantha intermedia Fred M. Roberts 2012-5-10 7563 Orange Peninsular Ranges; Coastal Foothills, San Joaquin Hills, south fork of Buck Gully, north slope Pelican Hill, 0.6 km N summit Pelican Hill, north of Pelican Hill Drive 183 Comment
  RSA0051392  Cryptantha intermedia var. intermedia Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49663 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. Comment
  POM6631  Cryptantha microstachys P. A. Munz, L. T. Street, G. Williams 1919-5-3 2620 Orange Santa Ana River Canyon. Comment
  RSA0127598  Cryptantha microstachys Fred M. Roberts, Diane Etchison 2016-3-22 8028 Orange Lomas de Santiago: west of Irvine Lake and north of Santiago Canyon Road, southeastern slope of Hill 1332 near toe of slope, about 1.9km S Irvine Lake Dam spillway. 263 Comment
  UCR209368  Cryptantha microstachys Fred M. Roberts, Linda Farley 2008-3-28 6829 Orange Santa Ana Mountains, Upper Weir Canyon, Irvine Ranch Conservancy, 3.3 km east-northeast of Robbers Peak on ridge north of canyon 427 Comment
  IRVC19956  Cryptantha microstachys Gordon A. Marsh 1983-4-16 Orange Sycamore Hills, central sector, lower margin, Laguna Beach Comment
  IRVC20159  Cryptantha muricata var. muricata R. L. Allen 1977-4-19 Orange [San Juan Canyon], Ortega Hwy, road side 111, 1.5[mi E] San Juan Guard Station. Santa Ana Mountains Comment
  RSA487  Cucurbita foetidissima J. T. Howell 1927-7-28 504 Orange Near ranch houses, Rancho Santa Ana. 152 Comment
  OBI19347  Cupressus arizonica Carl B. Wolf 1935-1-2 6279 Orange Santa Ana Mts, slopes of Sierra Peak, W of Claymine cyn along road to peak 671 Comment
  CAS-BOT-BC80568  Cupressus forbesii P. A. Munz; I. M. Johnston 1922-5-18 5566 Orange Santa Ana Mts. 457 Comment
  JEPS19314  Cupressus forbesii John Thomas Howell 1927-6-26 2607 Orange just to west Sierra Peak; Santa Ana Mts. 701 Comment
  RSA14145  Cupressus forbesii R. C. Bacigalupi 1935-6-22 2354 Orange Head of Clay Mine Canyon on drainage of Santa Ana River, northern end of Santa Ana Mountains Comment
  RSA262123  Cupressus forbesii E. W. Lathrop 1976-11-17 7406 Orange 4 miles west of Corona in Gypsum Canyon. North slope of Sierra Peak. 609 Comment
  RSA644959  Cupressus forbesii Richard E. Riefner 2000-1-18 20 -101 Orange NCCP North Ranch Policy Plan Area: Main Divide Road; top of Gypsum Canyon. 518 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
  RSA409761  Cuscuta californica George Price 1967-5-14 s.n. Orange Silverado Canyon Comment
  RSA658213  Cuscuta californica T. A. Daubert 1991-5-26 670 Orange Tucker Wildlife Sanctuary, Modjeska Canyon nature trail. Comment
  UC1608264  Cuscuta californica Steve Boyd and Tim Ross 1992-5-19 7420 Orange San Mateo Canyon Wilderness Area, w edge of the wilderness along Lucas Canyon Trail from access roadd to Rancho Carrillo (7S06) n into Aliso Canyon Southern Santa Ana Mountains 365 Comment
  RSA542644  Cuscuta californica Fred M. Roberts, Kathy Keane 1988-5-25 3980 Orange Rancho Mission Veijo: Lower Canada Chiquita, 2.5 kilometers SSE Medium Rancho Survey Marker. 85 Comment
  RSA38192  Cuscuta ceanothi P. A. Munz 1946-10-2 11555 Orange Santa Ana River bottom, Rancho Santa Ana. 122 Comment
  RSA201912  Cuscuta salina L. M. Booth 1933-10 s.n. Orange Newport Comment
  UCR10366  Cuscuta salina Thomas A. Zink 1971-1 s.n. Orange South Coast, Newport Back Bay near the west end of the water-skiing area 3 Comment
  UC536956  Cuscuta subinclusa Lawrence M. Booth 1932-7-25 1316 Orange Santa Ana River Comment
  UCR189303  Cuscuta subinclusa Fred M. Roberts, R. L. Allen 2007-9-28 6617 Orange Lomas de Santiago, above lower Santiago Canyon wash along Santiago Canyon Road just south of Irvine Mesa, 3.3 km N of Bolero Lookout 332 Comment
  RSA65888  Cycloloma atriplicifolium F. W. Peirson 1924-8-29 5061 Orange Santa Ana River, bridge near Santa Ana. Comment
  RSA759248  Cyclospermum leptophyllum Robt. Allen 2008-4-9 s.n. Orange Irvine Valley College, N of N entrance to Student Services building. 45 Comment
  IRVC14840  Cynara cardunculus B. Newman 1965-3-14 Orange Dana Point Comment
  UCR48039  Cynara cardunculus Jack Easton 1987-4-21 s.n. Orange Southern Coast, Kain property, San Clemente, mouth of Trafalgar Canyon, just behind the beach 30 Comment
  UCR193829  Cynosurus echinatus A. C. Sanders, Fred M. Roberts 2008-7-16 35847 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, along road in canyon below Dripping Spring, c. 7.5 mi. ESE of Tustin 350 Comment
  RSA603290  Cynosurus echinatus Tony Bomkamp, R. E. Riefner 1997-6-18 97 -202 Orange Hidden Valley Ranch, Black Star Canyon, Santa Ana Mountins 671 Comment
  RSA710406  Cyperus eragrostis Fred M. Roberts 2005-10-3 6294 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
  OBI17023  Cyperus erythrorhizos Carl B. Wolf 1937-9-23 9366 Orange Rancho Santa Ana, Santa Ana Cyn 122 Comment
  RSA161258  Cyperus erythrorhizos Peter H. Raven 1961-10-15 16852 Orange Santa Ana River at Anaheim Street Crossing 61 Comment
  RSA594874  Cyperus erythrorhizos Fred M. Roberts, W. R. Ferren 1991-12-1 4829 Orange San Joaquin Hills: Laguna Canyon, Upper Laguna Lake, 3.5 kilometers N junction El Toro Road, 4.9 kilometers ENE Signal Peak. 113 Comment
  CAS-BOT-BC114321  Cyperus esculentus Helen D. Geis 1902-9-1 561 Orange Ditch banks, Santa Ana. Comment
  POM186293  Cyperus esculentus Joseph A. Ewan 1932-7-29 7725 Orange Santa Ana River near Costa Mesa. Comment
  RSA725529  Cyperus esculentus Fred M. Roberts 2007-9-11 6573 Orange Aliso Viejo: tributary to Aliso Creek on west side of Moulton Pkwy., 0.2 km N Aliso Viejo Pkwy., adj. to Kinder Care Learning Center. 83 Comment
  RSA5507  Cyperus esculentus Carl B. Wolf 1932-6-28 3761 Orange Bryant Ranch: along western half of north boundary of 40 acre Valencia orange grove at Bryant Ave. and Hansen Road. 9 Comment
  RSA599639  Cyperus involucratus Fred M. Roberts, P. Barrett, G. Bastillos 1995-7-25 4968 Orange Santa Ana Mountains: San Juan Canyon along San Juan Creek, San Juan Hot Springs, 0.8 kilometer SSW Juan Rancho Survey Mark. 214 Comment
  UCR130158  Cyperus laevigatus Joseph A. Ewan 1931-10-3 5197 Orange Below La Vida Soda Springs, Carbon Canyon 213 Comment
  SD255032  Cyperus niger Robert F. Thorne 1977-11-21 49999 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs. Comment
  RSA713567  Cyperus odoratus R. E. Riefner Jr. 2005-7-9 5 -551 Orange City of Huntington Beach, Huntington Central Park, Goldenwest St. near Slater Ave. 2 Comment
  RSA800673  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
  CAS-BOT-BC538087  Cyrtomium falcatum R. E. Riefner, Jr. 2012-1-16 12 -5 Orange City of Newport Beach, Corona Del Mar, beach area W of Morning Canyon Rd 1 Comment
  UCR246478  Cyrtomium falcatum R. E. Riefner Jr. 2011-7-7 11- 87 Orange city of Dana Point, south of Mussel Cove, north of Salt Creek Beach Park 9 Comment
  CHSC116491  Datisca glomerata R. F. Thorne; E. W. Lathrop, W. Wisura 1977-7-8 49563 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74). Comment
  SD245348  Datisca glomerata R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49563 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74). Along San Juan Creek. Comment
  RSA647957  Datura wrightii Mark Breidenbaugh, Caralisa Breidenbaush 1992-5-1 15 Orange 1/2 mile south of Chino Hills State Park. 198 Comment
  RSA695  Datura wrightii J. T. Howell 1927-7-5 264 Orange Near ranch Lowers, Rancho Santa Ana. Comment
  RSA743455  Datura wrightii Fred M. Roberts 2008-7-10 7075 Orange Dana Point: Dana Point Headlands, CNLM Preserve near Outlook 2, 0.7 km W Marine Institute (Dana Point Harbor). 52 Comment
  POM201711  Datura wrightii L. M. Booth 1932-7-30 1337 Orange Santa Ana River, 2 miles from ocean Comment
  RSA523  Daucus carota J. T. Howell 1927-6-30 252 Orange Bryant Ranch near Long Beach. 15 Comment
  RSA648189  Daucus pusillus Karl Price 1988-5-21 51 Orange An unnamed side canyon within Hot Springs Canyon. It is on Hot Springs Canyon Rd., 0.75 mi. North of Ortega Hwy. (74), 12.6 mi. East of San Juan Capistrano. 304 Comment
  UCR191224  Daucus pusillus A. C. Sanders 2008-4-29 35126 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, western end of Loma Ridge on road to sheriff's training facility, c. 1.5 mi. SW of Santiago Reservoir 335 Comment
  RSA749349  Deinandra fasciculata Fred M. Roberts 2008-4-22 6922 Orange Lomas de Santiago: Loma Ridge, Lower Hicks Cyn.,along Haul Rd. near asphalt plant, 2.2 km ENE Rattlesnake Reservoir dam and 2.2 km WNW Bee Peak, Irvine Ranch Conservancy. 188 Comment
  CAS-BOT-BC299326  Deinandra fasciculata Joseph Andorfer Ewan 1932-7-28 7695 Orange Newport Bay near power house Comment
  CAS-BOT-BC299330  Deinandra fasciculata H. M. Hall 1930-11-4 12994 Orange South of Capistrano on mesa about one mile from the sea Comment
  UC126798  Deinandra fasciculata H. M. Hall 1906-6-19 7411 Orange Santa Ana Canyon 121 Comment
  UCR224403  Deinandra kelloggii Robt. L. Allen, Linnell R. Allen 2008-7-27 s.n. Orange Santa Ana Mountains, Long Canyon Watershed, along Long Canyon Road, 128 m southeast of juntion with spur to Mystic Oaks (McConville Camp), 0.48 air miles upslope from junction with Ortega Hwy (SR74) 749 Comment
  UCSB52429  Delairea odorata Roberts, Fred 1982-11-24 Orange Laguna beach: Blue bird canyon, west flank of temple Hill,1.2 km NE Cactus Point: 1.6km SW Top of the World School 190 Comment
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Dec 12 2018
  RSA649081  Delphinium Karl Price 1988-5-7 35 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
  UCR231162  Delphinium cardinale Dick Newell, Judy Booth 2011-6-26 193 Orange Peninsular Range; Santa Ana Mtns., Long Canyon Rd., NW of Hwy 74, Cleveland National Forest 965 Comment
  CAS-BOT-BC82949  Dendromecon rigida A. M. White 1974-6-1 1361 Orange North of Silverado Canyon. Ca. 20 miles east of Santa Ana. 1005 Comment
  RSA652150  Dendromecon rigida J. Bruce Smiley 1940-4-28 s.n. Orange Santa Ana Canyon (mouth). 701 Comment
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Nov 6 2013
  RSA627745  Descurainia pinnata Scott D. White 1998-1-26 6068 Orange Irvine, Univ. of Calif. Irvine Campus: Site of proposed Research Park. SW of main campus circle, ca. halfway between Berkeley Av. and new freeway (Bonita Cyn.) 37 Comment
  RSA0034528  Dichelostemma capitatum Paul Shirokawa 1998-4-24 3 Orange Cleveland National Forest - Trabuco Ranger District, 2.3 miles from Ortega Highway (State Highway 74) on North Main Divide Road. 960 Comment
  RSA0127418  Dichelostemma capitatum subsp. capitatum Fred M. Roberts 2016-3-17 8013 Orange San Joaquin Hills: City of Irvine, Ridge between Coyote Canyon and Bommer Canyon along Turtle Ridge Trail, 0.6 km NNE Signal Peak and 1.1 km SW Cattle Camp. 314 Comment
  RSA367484  Dichelostemma capitatum subsp. capitatum Christopher Davidson 1977-5-18 5626 Orange Santa Ana Mts. Cleveland Nat. Forest. Bear Springs 1220 Comment
  RSA208913  Dichelostemma capitatum subsp. capitatum Lee W. Lenz 1965-4-6 24585 b Orange Bluff above ocean, Dana Point. 30 Comment
  UCR37799  Dichondra occidentalis Steve Boyd 1981-5-13 s.n. Orange South Coast, Pelican Hill, Irvine Ranch Property, San Joaquin Hills south of Corona del Mar 218 Comment
  RSA184114  Dichondra repens I. L. Wiggins 1965-7-11 20362 Orange Vacant lot between State College Blvd. and Troy High School campus, Fullerton. 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
  RSA0029994  Dimorphotheca fruticosa R. E. Riefner Jr. 2011-7-1 11 -79 Orange City of Newport Beach, beach area W. of Shorecliff Road and Cameo Shores Road. 2 Comment
  SEINET13682959  Diplacus aurantiacus R. Nelson, Baumann, Kondratieff, Sargent 1988-1-12 5117 Orange Cleveland NF, San Juan Creek at Lower San Juan Campground. 366 Comment
  SEINET219137  Diplacus brevipes T. Mosquin, P. H. Raven 1962-1 4277 Orange Silverado Canyon; Santa Ana Mts 701 Comment
  SEINET13777977 Image available Diplacus puniceus J. McNeill 1969-1 3001 Orange San Juaquin Hills, Coyote Canyon 200 Comment
  RSA151106  Diplotaxis muralis P. H. Raven 1962-3-27 16992 Orange Orange County, site of Rancho Santa Ana, near Anaheim. 183 Comment
  RSA362298  Diplotaxis tenuifolia Fred M. Roberts 1986-8-9 s.n. Orange Yorba Linda, Santa Ana Canyon, N side of Green River Golf course. 127 Comment
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Nov 17 2018
  RSA678747  Distichlis littoralis Valerie L. Soza, Kevin B. Clark, LeRoy Gross, Will Miller, Fred M. Roberts, Gary D. Wallace 2001-4-4 1102 Orange Seal Beach National Wildlife Refuge: Seal Beach U. S. Naval Weapons Station, across access road from Nature Center (Bldg 226). 3 Comment
  CAS-BOT-BC195673  Distichlis spicata John Thomas Howell 1927-6-17 2552 Orange Hills on north side of Santa Ana Canon [Canyon] 152 Comment
  CAS-BOT-BC195674  Distichlis spicata Carl B. Wolf 1932-7-2 3816 Orange Carbon Canyon, 1/8 mi. below La Vida Springs 213 Comment
  HSC9634  Distichlis spicata J. W. Johnson 1961-2-19 Orange Newport Beach, marine terrace above upper Newport Bay. Comment
  UCD64386  Distichlis spicata var. stolonifera C. B. Wolf Date Unknown 3815 Orange Orange Co. Comment
  SEINET5500867 Image available Dodecatheon clevelandii Sally Walker 1998-3-23 Orange Quail trail Wm casper park Comment
  CAS-BOT-BC41654  Draba cuneifolia var. cuneifolia Carl B. Wolf 1932-2-17 2661 Orange Rancho Santa Ana Botanic Garden, just west Adensotoma sparsifolium bed. 182 Comment
  IRVC20310  Draba cuneifolia var. integrifolia Fred M. Roberts, Karlin G. Marsh 1983-2-25 869 Orange Temple Hill; ridge above upper Rancho Laguna Cyn, 1.6km SSW Top of the World Sch., 2.0km NNE Goff Island. Southern Coastal 269 Comment
  RSA682914  Drymocallis glandulosa var. wrangelliana Scott D. White, Amanda Duchardt 2003-5-1 9164 Orange Santa Ana Mountain Foothills: Slopes above west side of Trampas Canyon. 107 Comment
  RSA124720  Dryopteris arguta E. K. Balls, Percy C. Everett 1957-11-25 22843 Orange Trabuco Canyon, 1.7 mi. w. of entrance to Holy Jim Canyon, 670 Comment
  RSA739332  Dryopteris arguta Keith E. Hoffmaster 1934-4-22 37 Orange Santa Ana Mountains. Comment
  NY387869  Dudleya R. V. Moran 1948-6-23 3097 Orange North-facing cliff near mouth of Aliso Canyon, south of Laguna Beach. 7.6 Comment
  CAS-BOT-BC109566  Dudleya blochmaniae subsp. blochmaniae Reid Moran 1950-4-24 3388 Orange San Clemente, atop sea bluffs Comment
  SD45413  Dudleya blochmaniae subsp. blochmaniae Reid Moran 1950-4-24 3388 Orange San Clemente, atop sea bluffs. Comment
  CAS-BOT-BC109689  Dudleya cymosa subsp. ovatifolia K. Nakai 1979-10-30 542 Orange Santa Ana Mountains, Santiago Canyon, end of Modjeska Road. 487 Comment
  POM48463  Dudleya edulis F. W. Peirson 1924-5-31 4674 Orange 5 miles southeast of Laguna Beach. Comment
  UC933206  Dudleya edulis Reid Moran 1949-7-2 3287 A Orange Aliso Canyon Laguna Beach Comment
  RSA588880  Dudleya edulis Fred M. Roberts, D. Bontrager 1990-6-5 4675 Orange Rancho Mission Viejo; Lower Canada Gobernidora, 3.1 km W Point Rancho Survey Marker 112 Comment
  UC2059977  Dudleya edulis K. Nakai 1978-7-17 391 Orange Aliso Canon, ca. 200 yards from California Highway 1. Comment
  IRVC25461  Dudleya lanceolata Fred M. Roberts 1987-4-21 3386 Orange Aliso Creek, Aliso Creek Bike Trail, 3.0km ENE Moulton Peak, Aliso Viejo 73 Comment
  POM6660  Dudleya lanceolata P. A. Munz 1919-5-4 s.n. Orange Laguna Canyon. Comment
  RSA20920  Dudleya lanceolata E. R. Johnson 1937-6-20 s.n. Orange Dana Point. 15 Comment
  RSA5350  Dudleya lanceolata B. D. Stark 1932-12-9 1674 Orange Dana Point Comment
  RSA591738  Dudleya lanceolata Roos 1965-6-16 s.n. Orange Dana Point Comment
  UC536907  Dudleya lanceolata Lawrence M. Booth 1932-6-9 1188 Orange Newport Bay 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
  UCSB48002  Dudleya lanceolata Roberts, Fred 1980-7-11 Orange Santa Ana Mtns.: Viejo Canyon; 3.0 km. ENE San Juan Guard Station; 0.6 km. N Hwy. 74 353 Comment
  RSA542536  Dudleya multicaulis Fred M. Roberts, Kathy Keane 1988-5-25 4000 Orange Rancho Mission Viejo: Lower Canada Gobernadora, ca. 2.4 kn SW Cliff Survey Marker. 110 Comment
  RSA542640  Dudleya multicaulis Fred M. Roberts, Kathy Keane 1988-5-25 3994 Orange Rancho Mission Veijo: Lower Canada Chiquita, 2.0km SSE Medium Rancho Survey Marker. 91 Comment
  RSA584711  Dudleya multicaulis Fred M. Roberts 1989-6-7 4377 Orange Santa Ana Mountains: Upper Gypsum Canyon along ridge between Gypsum and Blind Canyon, c. 6.3 km WSW Sierra Peak. 411 Comment
  UC2059978  Dudleya multicaulis K. Nakai 1981-6-4 774 Orange 0.3 mi E of Laguna Canyon Road on El Toro Road. Comment
  UCR37776  Dudleya multicaulis 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
  RSA13069  Dudleya pulverulenta P. C. Everett 1935-7-5 2361 Orange Rancho Santa Ana, Santa Ana Canyon hill N of Grapefruit orchard 152 Comment
  UCR210059  Dudleya pulverulenta A. C. Sanders, Fred M. Roberts, Jutta Burger 2009-10-21 37192 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hangmans Tree Canyon 379 Comment
  UC1015432  Dudleya pulverulenta subsp. pulverulenta Jack Whitehead 1946-6-12 396 Orange Dana Point Comment
  POM93  Dudleya saxosa subsp. aloides P. A. Munz 1919-5-5 2796 Orange San Gorgonio Pass. Comment
  IRVC25030  Dudleya stolonifera Fred M. Roberts 1984-4-29 1360 Orange Temple Hill above Laguna Canyon, 6.5km SE Signal Peak; 0.6km E Bench Mark 104, Laguna Beach 195 Comment
  SD129960  Dudleya stolonifera Reid Moran 1977-6-13 24230 Orange Willow Canyon, tributary of Laguna Canyon. 124 Comment
  UC905134  Dudleya stolonifera R. V. Moran 1949-7-2 3286 Orange 1.5 mi above canyon mouth (1.7 mi below Toro Rd junction); Laguna Canyon Comment
  UC933268  Dudleya stolonifera Reid Moran 1949-5-28 3259 Orange Aliso Canyon Laguna Beach Comment
  SD212579  Dudleya viscida A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33053 Orange Santa Ana Mountains; San Juan Canyon from Lower San Juan Picnic Area to ca. 1.0 mile downstream, parallel to Highway 74 and near Riverside County line. 366 Comment
  SFV10403  Dudleya viscida M. L. Vincent 1963-7-8 435 Orange Roadside, 5 miles east of San Juan Capistrano on Highway 74. Comment
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Jan 6 2018
  RSA0045323  Echinochloa Keith E. Hoffmaster 1940-7-22 961 Orange Santa Ana Comment
  CAS-BOT-BC197032  Echinochloa colona E. R. Johnson 1936-7-10 8104 Orange Rancho Santa Ana, Santa Ana Canyon Vegetable Garden 121 Comment
  UCD33247  Echinochloa colona Beecher Crampton 1967-5-23 7957 Orange Orange County, 4 miles east of Irvine, UC South Coast Field Station. Comment
  UCD60763  Echinochloa colona Ira L. Wiggins 1965-10-2 20269 Orange Curbway at corner of Longview Dr. and Dorothy Lane, Fullerton. Comment
  POM1051  Echinochloa colona C. B. Bradshaw s.n. Orange Orange. 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
  UCD60823  Echinochloa crus-galli Beecher Crampton 1965-10-27 7584 Orange 2 miles E of Irvine, UC South Coast Field Station. Comment
  RSA234531  Echinochloa crus-galli James Henrickson 1970-7-25 5088 Orange 3.5 miles NW of Huntington Beach growing along graded inner slope of East Garden Grove-Wintersburg Flood Control Channel near Bolsa Chica Salt Marsh. 1 Comment
  POM202732  Echinochloa muricata var. microstachya L. M. Booth 1932-7-25 1314 Orange Santa Ana River 2 miles from ocean. Comment
  POM1011  Echinodorus berteroi I. M. Johnston 1918-9-3 2151 Orange Laguna Canyon (at the lakes) 107 Comment
  UCR19807  Echinodorus berteroi F. M. Reed 1924-8-15 4963 Orange South Coast, Laguna Lake Beds, Laguna Canyon Comment
  UCSB57135  Echinodorus berteroi Marsh, G. 1975-7-28 Orange Huntington Beach; east Garden Grove-Wintersburg Flood Control Channel (No.C05); just N of Warner St. bridge crossing Comment
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Aug 18 2011
  SD236186  Eclipta prostrata A. C. Sanders, Fred M. Roberts 2008-9-18 36069 Orange Peninsular Range; Santa Ana Mtns. Foothills: Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge 320 Comment
  UCSB47620  Ehrendorferia chrysantha Roberts, Fred 1980-5-3 Orange Santa Ana Mtns., San Juan Canyon, Rte. 74, 0.2km S Lower San Juan Picnic Ground 393 Comment
  RSA588991  Ehrharta calycina D. E. Bramlet 1994-6-2 2382 Orange San Joaquin Hills. Emerald Canyon 4.4 kilometers north of Pacific Coast Highway.. Laguna Beach 75 USGS Quad: 37 16 180m N X 4 27 820m E. 226 Comment
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Sep 8 2018
  OBI82200  Ehrharta erecta Unknown 2012-2-1 12 -15 Orange City of Dana Point, Dana Point Harbor, vicinity of Puerto Pl. and Dana Point Harbor Drive 2 Comment
  UCR240173  Ehrharta erecta R. E. Riefner Jr. 2012-2-1 12- 15 Orange South Coast, city of Dana Point, Dana Point Harbor, vicinity of Puerto Pl. and Dana Point Harbor Drive 2 Comment
  UCR266405  Ehrharta erecta D. E. Bramlet 2010-3-3 s.n. Orange 1691 Mesa Dr., Newport Beach 16 Comment
  RSA724039  Ehrharta erecta R. E. Riefner 2004-5-31 4 -194 Orange City of Lake Forest; Serrano Creek, SE of Bake Pkwy. 107 Comment
  RSA724074  Ehrharta erecta R. E. Riefner 1999-8-21 99 -362 Orange Laguna Beach, west of Pacific Coast Hwy., vicinity of Aliso Creek Park and south to West Drive. 0 Comment
  CAS-BOT-BC112764  Eleocharis macrostachya John Thomas Howell 1927-6-30 2619 Orange Mucky soil of canal bank 7 miles east of Long Beach. 15 Comment
  CAS-BOT-BC113330  Eleocharis montevidensis Helen D. Geis 1902-4-1 507 Orange Santa Ana Comment
  RSA82  Eleocharis montevidensis var. montevidensis J. T. Howell 1927-7-6 279 Orange Santa Ana River bottom, Rancho Santa Ana 152 Comment
  POM12446  Eleocharis palustris Phillip A. Munz 1922-9-2 6354 Orange Ponds in Laguna Canyon 46 Comment
  RSA83  Eleocharis palustris J. T. Howell 1927-6-30 238 Orange Bryant Ranch near Long Beach. 15 Comment
  UCR188897  Eleocharis parvula Robert DeRuff 1985-1 22 Orange Southern Coast, Newport Beach, Upper Newport Bay at mouth of Delhi Ditch near end of Del Mar Drive 4 Comment
  RSA723324  Eleusine coracana subsp. africana R. E. Riefner 2006-11-15 6 -677 Orange City of Irvine, Shady Canyon Rd. at Quail Hill. 35 Comment
  POM265759  Elymus glaucus J. C. Roos 1937-5-10 2076 Orange San Juan Capistrano. Comment
  CAS-BOT-BC234137  Elymus multisetus L. R. Abrams 1901-6-1 1823 Orange Santiago Pk trail Comment
  POM1331  Elymus multisetus Le Roy Abrams 1901-06 1823 Orange Santiago Peak Trail 915 Comment
  RSA724034  Elymus repens R. E. Riefner 2005-10-1 5 -704 Orange City of Costa Mesa, South Coast Dr. at Susan Rd. 16 Comment
  UCR2375  Elymus triticoides F. M. Reed 1932-5-24 7234 Orange South Coast, San Juan Capistrano, behind beach dune Comment
  CDA22471  Emex spinosa Ball 1933-4-21 Orange Lemon Grove. 0 Comment
  UCR209332  Emmenanthe penduliflora var. penduliflora Fred M. Roberts 2009-4-11 6889 Orange Lomas de Santiago, Loma Ridge, upper Dripping Springs Canyon, 0.9 km northeast of Bee Peak and 1.2 km west-northwest of Dripping Springs 448 Comment
  CHSC30407  Encelia californica T. B. Devine 1980-4-2 619 Orange On Back Bay Dr. E. of Upper Newport Bay ca 2 mi. N. of jct. with Jamboree Rd. Comment
  POM202371  Encelia californica L. M. Booth 1932-5-12 1029 Orange Newport Bay. Comment
  RSA0073641  Encelia californica Fred M. Roberts 2010-3-12 7177 Orange Southeast Coast: DANA POINT HEADLANDS: Harbor Point Park, South of Green Lantern and west of Dana Point Harbor, c.a. 150 meters SE Interpretive Center. 50 Comment
  RSA696885  Encelia californica Kenneth Beard 1934-03 s.n. Orange Waste land along road near Placentia. Comment
  UCR223984  Encelia californica Dick Newell, Don Millar 2011-3-1 071 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Hicks Canyon Haul Road, above Jeffrey Rd. and below Hwy 241 crossing 175 Comment
  UCR267184  Encelia californica Fred M. Roberts 2010-3-12 7177 Orange Southeast Coast, DANA POINT HEADLANDS: Harbor Point Park, South of Green Lantern and west of Dana Point Harbor, c. 150 meters SE Interpretive Center 50 Comment
  UCR231352  Epilobium canum A. C. Sanders, Kent Beaman 2011-9-27 39904 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
  IRVC8766  Epilobium canum subsp. canum Charles W. Sexton 1965-2-12 s.n. Orange Newport Beach. Southern Coastal Comment
  POM146315  Epilobium canum subsp. canum Chas H. Quibell 1927-07 s.n. Orange Laguna Beach. Comment
  POM18136  Epilobium canum subsp. canum P. A. Munz 1923-9-7 7764 Orange Santa Ana Mountains, on trail from Trabuco Canyon to Santiago Peak. 1616 Comment
  RSA162770  Epilobium canum subsp. canum J. D. Olmsted 1959-8-26 830 Orange 100 yards northeast of center of Hidden Ranch by pump along Black Star Canyon Road. N end of Santa Ana Mountains 671 Comment
  UCR247893  Epilobium canum subsp. canum Fred M. Roberts 2012-7-18 7660 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
  UCSB52396  Epilobium canum subsp. canum Roberts, Fred 1982-9-20 Orange Santa Ana Mts., near jct. of San Juan and Chiquito Basin Trails, 1.4km SW Blue Jay Campground; 2.4km SSE Los Pinos Peak 974 Comment
  RSA717047  Epilobium ciliatum Fred M. Roberts 2005-10-3 6290 Orange San Juan Capistrano: San Juan Creek, La Novia Road bridge to 100m E of bridge, 1.4km E Mission San Juan Capistrano. 27 Comment
  RSA698281  Epilobium watsonii Elisabeth Norland 1929-1 s.n. Orange Santa Ana River, near Santa Ana. Comment
  UCR174208  Epipactis gigantea A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33030 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
  UCD169806  Epipactis gigantea R. F. Thorne; E. W. Lathrop, W. Wisura 1977-7-8 49608 Orange Santa Ana Mountains: rocky ravine tributary to San Juan Canyon, along Ortega Highway (74) about 2 miles above San Juan Fire Station. Comment
  UCR174026  Equisetum laevigatum A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33050 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
  POM17838  Equisetum telmateia var. braunii Philip A. Munz 1923-9-7 7731 Orange Holy Jim Canyon, Santa Ana Mountains 609 Comment
  RSA798092  Equisetum telmateia var. braunii R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49599 Orange Santa Ana Mountains: rocky ravine tributary to San Juan Canyon, along Ortega Highway (74) about 2 miles above San Juan Fire Station. Comment
  SEINET3386349 Image available Eragrostis A. C. Sanders, Fred M. Roberts 2008-1 36091 Orange Peninsular Range; Santa Ana Mtns. Foothills: Lomas de Santiago, Santiago Creek Canyon c. 0.5-0.8 miles above the highway bridge. Comment
  RSA226743  Eragrostis mexicana subsp. virescens I. L. Wiggins 1965-11-7 20358 Orange Vacant lot between State College Blvd. and Troy High School Campus, Fullerton. Comment
  JEPS52502  Eremocarpus setiger John Thomas Howell 1927-9-24 3108 Orange Rancho Santa Ana Santa Ana Canyon 152 Comment
  UC1543073  Eremocarpus setiger Donald G. Nelson 1935-6-27 330 Orange on bluffs facing ocean beaches s Corona del Mar (s of mouth of Newport Bay) Comment
  RSA170439  Eremocarpus setiger J. D. Olmsted 1959-8-26 831 Orange 100 yards northeast of center of Hidden Ranch by pump along Black Star Canyon Road. N end of Santa Ana Mountains 671 Comment
  RSA0105523  Eriastrum densifolium subsp. austromontanum M. Clinton 1931-6-24 s.n. Orange South Fork S.A. River. Comment
  JEPS69115  Eriastrum sapphirinum John Thomas Howell 1927-6-9 2471 Orange Santa Ana Canyon Rancho Santa Ana 213 Comment
  UCR73131  Eriastrum sapphirinum Scott D. White 1992-9-23 854 Orange Vicinity of Olinda, near city of Brea, immediately north of Carbon Canyon Road and east of Placentia Ave.; c. 1 mi. (airline) SSE of Tonner Canyon 183 Comment
  UCR208079  Eriastrum sapphirinum subsp. dasyanthum M. B. Dunkle 1938-6-23 5380 Orange Peninsular Range; Santa Ana Mtns., San Juan Canyon Comment
  CAS-BOT-BC514997  Eriastrum sapphirinum subsp. dasyanthum L. R. Abrams 1901-6-1 1791 Orange Trabuco Canyon Comment
  RSA0121313  Eriastrum sapphirinum subsp. dasyanthum P. A. Munz 1949-5-26 13374 Orange Head of Sierra [Freemont] Canyon, Santa Ana Mountains 732 Comment
  RSA0121315  Eriastrum sapphirinum subsp. dasyanthum L. M. Booth 813 Orange Santa Ana Canyon. Comment
  RSA0121319  Eriastrum sapphirinum subsp. dasyanthum Fred M. Roberts, Carol A. Roberts 1990-5-16 4628 Orange Santa Ana Mtns: Small canyon along SE side of Irvine Mesa, 3.5 km N Bolero Lookout 396 Comment
  RSA0108901  Eriastrum sapphirinum subsp. sapphirinum Rosemarie Zimmermann 1963-6-8 298 Orange Off State Hwy 18, on Oak Ridge Estates Rd. About 7 mi. E. of Hwy 101& El Toro. Near O'Neil Park. 610 Comment
  SD28142  Ericameria pachylepis Carl B. Wolf 1931-10-30 2943 Orange Rancho Santa Ana. 206 Comment
  RSA0054858  Ericameria palmeri Keith E. Hoffmaster 1933-10-15 100 Orange Santa Ana mts. Comment
  CAS-BOT-BC299500  Ericameria palmeri var. pachylepis Carl B. Wolf 1931-10-30 2944 Orange Rancho Santa Ana, Santa Ana Canyon 207 Comment
  CHSC35339  Ericameria palmeri var. pachylepis James Henrickson 1972-10-21 8076 Orange Newport Beach, So. of Jamboree Rd., E. of Irvine Coast Country Club near U.C. Irvine. Fields near golf course. 45 Comment
  RSA16676  Ericameria palmeri var. pachylepis C. B. Wolf 1931-10-30 2504 Orange Rancho Santa Ana, Santa Ana Canyon. 207 Comment
  SEINET5708382 Image available Ericameria palmeri var. pachylepis C. W. Tilforth 1976-1 1228 Orange Open slopes above Santa Ana Canyon on Rancho Santa Ana property.; Santa Ana Canyon Comment
  CAS-BOT-BC131636  Ericameria parishii var. parishii James R. Shevock 1976-10-28 5351 Orange Along the north slope of Pleasants Peak off of FS road 3S04, Santa Ana Mts., Cleveland National Forest 1219 Comment
  RSA797599  Erigeron foliosus R. F. Thorne 1977-11-21 49996 Orange Santa Ana Mountains: tributary canyon to San Juan Canyon about 2 miles above San Juan Fire Station Comment
  IRVC14812  Erigeron foliosus var. foliosus A. S. Boughey 1968-7-9 384396 Orange Santa Ana mtns: upper Santiago Canyon. Peninsular Ranges Comment
  RSA7468  Erigeron foliosus var. stenophyllus C. B. Wolf 1933-8-24 5392 Orange Summit of Santiago Peak, Santa Ana Mountains. 1707 Comment
  RSA550599  Eriodictyon crassifolium Fred M. Roberts 1989-4-26 4315 Orange Lomas de Santiago: Lower Santiago Canyon, 10.1 km SW Sierra Peak, ca. 1.3 km NW Irvine Lake spillway. 195 Comment
  SEINET10697903  Eriodictyon crassifolium var. crassifolium Karen M. Meyer, Andrew Townesmith; Tracy Scott 2007-3-10 Meyer 1 Orange Cleveland National Forest, 0.5 mi. N. Main Divide Rd./NF3S04, off Hwy. 74. Elsinore Mountains, ridge top. 917 Comment
  UCR221894  Eriogonum elongatum Dick Newell, Don Millar 2010-10-12 45 Orange Peninsular Range; Santa Ana Mtns., Irvine Ranch, Lakeview Rd. above Irvine Lake and 0.8 mi. due west of State Spur Rd. 498 Comment
  POM2258  Eriogonum fasciculatum I. M. Johnston 1918-5-4 666 Orange Laguna Beach Comment
  RSA658200  Eriogonum fasciculatum T. A. Daubert 1991-5-19 650 Orange Tucker Wildlife Sanctuary, Modjeska Canyon inside sanctuary. Comment
  RSA698423  Eriogonum fasciculatum L. C. Hull 1934-4-8 s.n. Orange Laguna Hills. Comment
  SEINET182348  Eriogonum fasciculatum Lawrence M. Booth 1932-5-18 1057 Orange Newport bay Bluff Slopes Comment
  UCR222389  Eriogonum fasciculatum Mark A. Elvin 2003-1-26 2243 Orange South Coast, Irvine, UC Irvine Open Space Preserve, NE side, between core of UCI campus (E Peltason Dr.) and Hwy 73 69 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
  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
  CAS-BOT-BC249943  Eriogonum fasciculatum var. foliolosum Marcus E. Jones 1926-3-13 s.n. Orange Santa Ana Canon [Canyon] Comment
  CAS-BOT-BC249944  Eriogonum fasciculatum var. foliolosum John Thomas Howell 1927-7-24 2835 Orange Santa Ana Canyon 152 Comment
  RSA215  Eriogonum fasciculatum var. foliolosum J. T. Howell 1927-7-24 475 Orange Santa Ana River bottom near Rancho Santa Ana. 152 Comment
  UC1393288  Eriogonum fasciculatum var. foliolosum R. J. Barr 1967-5-11 67 -166 Orange Roadside e El Toro; Santa Ana Mountains 182 Comment
  UC536903  Eriogonum gracile L. M. Booth 1932-7-29 1331 Orange Newport Lagoon Comment
  RSA581664  Eriogonum gracile var. gracile Tony Bomkamp 1995-06 s.n. Orange Rancho Santa Margarita, ca. 1/8 mile west of Oso Parkway and 1/8 mile south of Canada Chiquita. 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
  RSA761926  Eriogonum saxatile Robt. Allen 2003-6-22 12371 Orange Modjeska Peak, southwestern arm, 0.6 air miles southwest of the summit. 1513 Comment
  RSA783663  Eriogonum virgatum J. D. Olmsted 1959-8-26 832 Orange Black Star Creek: Near Hidden Ranch along Black Star Canyon Road in Black Star Canyon in roadside cliffs. 671 Comment
  CAS-BOT-BC297329  Eriophyllum confertiflorum John Thomas Howell 1927-6-26 2592 Orange Claymine Canon, N Santa Ana Mts 243 Comment
  POM49708  Eriophyllum confertiflorum L. R. Abrams 1901-06 1834 Orange Mt Santiago 1747 Comment
  RSA786241  Erodium botrys Doris Bowers 1971-4-19 1679 Orange Black Star Canyon Indian Site 762 Comment
  RSA12903  Erodium botrys E. R. Johnson 1935-3-1 6293 Orange 1 miles west of Atwood, south side of Railroad. 91 Comment
  RSA12932  Erodium botrys E. R. Johnson 1935-4-8 6322 Orange 1 mile west of Atwood on South side of Railroad. Alt 300ft. Orange County Comment
  RSA610240  Erodium brachycarpum Fred M. Roberts 1997-3-13 4983 Orange Rancho Mission Viejo: Christianitos Canyon, 4 km ESE Viejo Survey Mark. 5 Comment
  RSA649073  Erodium cicutarium Karl Price 1988-4-29 9 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
  RSA650823  Erodium cicutarium Daniel Truong 1991-5-5 9 Orange Irvine Regional Park, left field adjacent to main entrance, within 1/4 mile radius of ''closed area' . Comment
  JEPS53573  Erysimum capitatum var. capitatum Alice Mary King Feb. 1908 Orange Santiago Creek Santa Ana Mts. Comment
  UCR188898  Erythrina caffra Robert DeRuff 1985-1 103 Orange Southern Coast, Newport Beach, Upper Newport Back Bay, along the path from Mariners Drive to North Star Beach 30 Comment
  CDA25634  Eschscholzia californica A. C. Sanders, Fred M. Roberts, A. O Neal 2008-5-9 35308 Orange Peninsular Range; Santa Ana Mountains; Weir Canyon, along fire line/bulldozer cut, c. 1.5 miles east of Walnut Canyon Reservoir. Comment
  RSA312  Eschscholzia californica var. peninsularis J. T. Howell 1927-6-22 194 Orange Botany Garden, Rancho Santa Ana. Comment
  IRVC27878  Eucalyptus citriodora A. C. Sanders, Mark A. Elvin 2003-10-12 27312 Orange Irvine; UCI Arboretum, UCI campus near intersection of Jamboree Blvd and Campus Dr. Southern Coastal 15 Comment
  RSA0012593  Eucalyptus erythrocorys R. E. Riefner Jr. 2007-9-27 7 -414 Orange City Laguna Niguel, along Forbes Road near Crown Valley Parkway, W of I-5 Freeway. Comment
  SEINET3093482 Image available Eucalyptus tereticornis D. Goodward 1987-4-16 1 Orange Lake Forest, E of Irvine and N of El Toro. Old plantation, now maintained as landscaping. Comment
  POM4517  Eucrypta chrysanthemifolia P. A. Munz 1918-5-5 2174 Orange Laguna. Comment
  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
  UCR192089  Eucrypta chrysanthemifolia A. C. Sanders, Fred M. Roberts 2008-5-6 35263 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
  UCR192463  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
  UCR209384  Eucrypta chrysanthemifolia Fred M. Roberts 2008-3-25 6793 Orange Loma Ridge, Upper Hicks Canyon near Haul Road, c. 4.4 km by road from Portola Parkway, and 3.2 km east northeast Rattlesnake Canyon Reservoir 269 Comment
  JEPS1726  Eucrypta chrysanthemifolia var. chrysanthemifolia Alice King 1908-1 Orange Anaheim Comment
  UC1607994  Eucrypta chrysanthemifolia var. chrysanthemifolia Donald G. Nelson 1935-7-6 224 Orange San Juan Canyon Comment
  IRVC20502  Euphorbia albomarginata Fred M. Roberts 1983-9-29 1138 Orange San Joaquin Freshwater Marsh, 1.9km NNW UCI campus center, Irvine 2 Comment
  UCR186135  Euphorbia maculata T. B. Salvato, Katie Kurtz 2006-10-15 1917 Orange South Coast, Irvine, San Diego Creek flood control channel, near Michelson Drive and Harvard Avenue 6 Comment
  POM201865  Euphorbia misera L. M. Booth 1932-7-23 1300 Orange Corona del Mar, Newport Beach. Comment
  RSA432423  Euphorbia misera Albert J. Perkins 1917-3-10 s.n. Orange Aliso Canyon Comment
  SD248410  Euphorbia misera R. E. Riefner Jr. 2013-1-16 13 16 Orange City of Newort Beach, vicinity of Poppy Ave., and Ocean Blvd., coastal bluff at Little Corona Beach. 3 Comment
  UCSB52452  Euphorbia misera Roberts, Fred 1983-3-10 Orange Dana Point Headlands: south of Scenic Dr., 0.3 km. W Dana Point Harbor; 0.8 km. S Richard Henry Dana School 60 Comment
  SEINET12142807  Euphorbia misera C. W. Tilforth, Busenberg, B. 1979-1 1925 Orange Bluffs N of Marina parking lot, Dana Point, Orange County, California Comment
  JEPS52403  Euphorbia peplus Lawrence M. Booth 1932-7-23 1303 Orange Corona del Mar Comment
  RSA599182  Euphorbia peplus Scott D. White 1997-3-28 4849 Orange Above Modjeska Canyon, proposed water tank site. 425 Comment
  SD152866  Euphorbia peplus Steve Boyd, Tim Ross 1992-5-19 7439 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness area. Western edge of wilderness in Lucas Canyon from crossing of creek by Lucas Canyon Trail, downstreem to confluence with Aliso Canyon (mak 1/06) 270 Comment
  UCD142717  Euphorbia polycarpa C. L. Hitchcock 1966-3-15 24140 Orange Stearns Lease, 1.5 miles east of Brea. Comment
  UCR239630  Euphorbia polycarpa var. polycarpa Fred M. Roberts 2012-4-24 7514 Orange San Joaquin Hills, Buck Gully, west of intersection of Ridge Park Road and Newport Coast Drive, 1.5 km west of Signal Peak 179 Comment
  JEPS46994  Eustoma exaltatum Laura O. Dodge 1920-12-5 Orange Olive; Santa Ana Canyon Comment
  SD255109  Euthamia occidentalis R. F. Thorne 1977-11-21 49982 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp. Comment
  RSA696043  Felicia amelloides Anonymous 1933-10-13 s.n. Orange Santa Ana Comment
  UCR267214  Festuca octoflora var. octoflora Fred M. Roberts, Lee Ann Caranza & Eliza Maher 2009-4-7 7145 Orange South Coast Region, DANA POINT HEADLANDS: Dana Point CNLM Preserve, 0.8 km WNW Dana Point Marine Institute at Dana Point Harbor 50 Comment
  CAS-BOT-BC474734  Ficus microcarpa R. E. Riefner, Jr. 2015-8-27 15 -355 Orange City of Laguna Beach, S side of Beach St. E of Broadway Ave. (Hwy. 133) 7 Comment
  CAS-BOT-BC487557  Ficus microcarpa R. E. Riefner, Jr. 2014-11-26 14 -399 Orange City of Irvine, W of IrvineBlvd. and S of Pusan Way, former MCAS El Toro facility 138 Comment
  RSA0088635  Ficus microcarpa R. E. Riefner Jr. 2014-6-21 14 -186 Orange City of Laguna Beach, N side of North Coast Highway near intersection with Cliff Dr. 10 Comment
  UCR267276  Ficus microcarpa R. E. Riefner Jr. 2014-11-26 14- 399 Orange City of Irvine, west of Irvine Blvd. and south of Pusan Way, former MCAS El Toro facility 138 Comment
  UCR267288  Ficus microcarpa R. E. Riefner Jr. 2014-2-24 14- 66 Orange South Coast, city of Dana Point, west c. 0.1 mi from Island Way along Dana Point Harbor Drive, cliff slope immediately south of Santa Clara Avenue and Amber Lantern Street 11 Comment
  CAS-BOT-BC474735  Ficus rubiginosa R. E. Riefner, Jr. 2015-8-27 15 -356 Orange City of Laguna Beach, S side of Beach St. E of Broadway Ave (Hwy 133) 7 Comment
  IRVC25411  Filago californica Fred M. Roberts, Wayne Ferren 1987-4-8 3360 Orange Upper Newport Back Bay, west side, North Star Beach, 0.8km N Coney Island, Newport Beach 0 Comment
  UCR191334  Filago californica A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34649 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 330 Comment
  RSA0057937  Filago californica Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49668 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. Comment
  RSA542429  Filago gallica Bill O'Connell 1991-5-31 5 Orange San Joaquin Hills: Pelican Hill, west side 190 Comment
  UCR106279  Filago gallica B. G. Pitzer, M. Georgiady 1997-4-5 3087 Orange San Joaquin Hills, Crystal Cove State Park, portion across highway on the beach, bluffs immediately above beach and adjacent terraces for southeast end of park. 24 Comment
  RSA524  Foeniculum vulgare J. T. Howell 1927-7-27 500 Orange Near ranch houses, Rancho Santa Ana 152 Comment
  RSA699264  Fragaria John Murphy 1938-6-6 s.n. Orange Birch Park Comment
  HSC87010  Frangula californica Reid Moran 1975-7-18 22596 Orange Bottoms of Upper Trabuco Canyon, Santa Ana Mtns. 725 Comment
  CAS-BOT-BC63068  Frangula californica subsp. californica P. C. Everett 1936-9-19 8268 Orange Santa Ana Mts., Silverado Canyon. In vicinity of Forest Service Road gate. 762 Comment
  SD119374  Frangula californica subsp. californica Reid Moran 1975-11-21 22740 Orange in bottom of Trabuca Canyon, Santa Ana Mountains 399 Comment
  CAS-BOT-BC53335  Frangula californica subsp. cuspidata Carl B. Wolf 1933-8-24 5391 Orange Santa Ana Mts. Summit of Santiago Pk. 1731 Comment
  RSA798541  Frangula californica subsp. cuspidata Robert F. Thorne, E. W. Lathrop 1977-5-18 49740 Orange Santa Ana Mountains: summit of Santiago Peak. 1733 Comment
  RSA391396  Frankenia grandifolia Albert J. Perkins 1908-5-30 s.n. Orange Laguna Mesa Comment
  SEINET6671085 Image available Frankenia grandifolia Lawrence M. Booth collection date not given 1037 Orange Newport Bay Comment
  IRVC1372  Frankenia salina Dorleene Van Gorden 1965-5-9 s.n. Orange Silverado Canyon. Peninsular Ranges, Santa Ana Mountains Comment
  RSA678748  Frankenia salina Valerie L. Soza, Kevin B. Clark, LeRoy Gross, Will Miller, Fred M. Roberts, Gary D. Wallace 2001-4-4 1104 Orange Seal Beach U. S. Naval Weapons Station, across access road from Nature Center (Bldg 226). 3 Comment
  SD239771  Frankenia salina Mark A. Elvin 2004-5-2 3402 Orange UTM in Supplement. Southern Coastal: Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7 km (air) NNW UC Irvine campus center. 3 Comment
  SD39967  Frankenia salina Edith A. Purer 1932-8-31 4874 Orange Along Route 101. Comment
  UC1122123  Frankenia salina A. Lewis Apr 1934 390 Orange Celery Corona Quad. 0 Comment
  UCR261702  Frasera parryi Dick Newell, Judy Booth 2014-5-26 377 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, upper Long Canyon Rd., 1.3 mile NW of El Cariso Hotshot Camp 996 Comment
  CAS-BOT-BC217644  Fraxinus dipetala John Thomas Howell 1927-7-26 2844 Orange Claymine Canyon, n. Santa Ana Mts. 243 Comment
  RSA698196  Fraxinus dipetala J. Vlahos 1934-4-6 s.n. Orange Top of Black Star Canyon. 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
  UCR234154  Fraxinus dipetala Dick Newell, Judy Booth 2012-3-25 232 Orange Peninsular Range; Santa Ana Mtns., Maple Springs Road, 1.5 miles above Maple Springs entrance 615 Comment
  RSA749449  Fritillaria biflora Fred M. Roberts 2009-4-11 6885 Orange Lomas de Santiago: Loma Ridge, upper Dripping Springs Cyn., 0.9 km NE Bee Peak and 1.2 km WNW Dripping Springs. 448 Comment
  RSA21805  Fritillaria biflora Percy C. Everett 1937-6-5 8769 Orange Santa Ana Mountains, Baker Canyon, along West Ladd Forest Service Road. Comment
  RSA184103  Fumaria parviflora I. L. Wiggins 1965-12-5 20366 Orange 2 miles east of Atwood on north side of Orangethorpe Ave. Comment
  RSA539416  Funastrum cynanchoides var. hartwegii Fred M. Roberts, D. Willick 1988-9-16 4133 Orange Peralta Hills: Oak Canyon Nature Center, Upper Walnut Canyon, 1.1 km N Robbers Peak 177 Comment
  RSA759247  Funastrum cynanchoides var. hartwegii Robt. Allen, Alison Linden 2007-5-17 s.n. Orange Irvine, Turtle Rock community, Chaparral Park, due N of Turtle Rock Dr, due E of Highgate terrace. 136 Comment
  RSA25774  Galinsoga parviflora var. parviflora C. B. Wolf 1941-6-3 10878 Orange Fullerton. Weed in garden of Ray M. Brown, Luanne Ave. 53 Comment
  RSA700195  Galium angustifolium R. H. McArthur 1934-4-7 s.n. Orange Ladd Canyon. Comment
  SEINET7067519  Galium angustifolium A. G. Vestal 1947-6-12 s.n. Orange Upper San Juan Canyon on Route 74 to Lake Elsinore in Cleveland National Forest. Coordinate datum: NAD27. UTM Zone 11, 452352mE, 3716538mN. Comment
  JEPS7854  Galium angustifolium subsp. angustifolium Alice King 1908-4-18 Orange Santa Ana Mts. Comment
  POM201752  Galium angustifolium subsp. angustifolium L. M. Booth 1932-6-4 1152 Orange Newport Lagoon. Comment
  RSA542396  Galium angustifolium subsp. angustifolium Fred M. Roberts Jr., R. E. Riefner 1988-7-19 4122 Orange Modjeska Peak, west slope, along old abandoned road, 0.2 km west summit 1592 Comment
  RSA631403  Galium angustifolium subsp. angustifolium Valerie L. Soza, LeRoy Gross 1999-6-7 490 b Orange West side of Modjeska Peak, along Main Divide Road. 1448 Comment
  RSA67768  Galium angustifolium subsp. angustifolium G. R. Campbell 1951-5-30 16095 Orange San Juan Canyon, Ortega Hwy, 4 mi. inside west border of Cleveland National Forest 152 Comment
  SD52383  Galium angustifolium subsp. angustifolium Benjamin C. Stone 1953-5-1 328 Orange Coal Creek Canyon of the Santa Ana Mountains 1219 Comment
  RSA0073656  Galium aparine Fred M. Roberts, Lee Ann Caranza 2009-4-7 7142 Orange Dana Point Headlands: Dana Point CNLM Preserve, 0.8 km WNW Dana Point Marine Institute at Dana Point Harbor. 60 Comment
  RSA221069  Galium aparine E. W. Lathrop 1966-5-1 6261 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland Nat'l Forest, Santa Ana Mountains. 396 Comment
  RSA732278  Galium porrigens A. C. Sanders, Fred M. Roberts 2008-4-22 35042 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
  RSA734343  Galium porrigens A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34632 Orange Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 366 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
  UCR191229  Galium porrigens A. C. Sanders, Fred M. Roberts 2008-4-22 35042 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, valley at south end of Loma Ridge and at head of Limestone Canyon, c. 2.5 miles SW of Silverado, above spring shown on topo map 457 Comment
  UCR191347  Galium porrigens A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34632 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 290 Comment
  UCSB45954  Gamochaeta pensylvanica Roos, John 1965-6-16 Orange Dana Point Comment
  IRVC21234  Garrya flavescens Fred M. Roberts 1984-2-12 1180 Orange Santa Ana Mtns: 0.1km SW of Falcon Group Camp; 2.0km ESE Los Pinos Peak. Peninsular Ranges 1000 Comment
  RSA124724  Garrya flavescens E. K. Balls, P. C. Everett 1957-11-25 22847 Orange 1.1 mile E of Silverado 884 Comment
  RSA5291  Garrya flavescens B. D. Stark 1933-1-5 4505 Orange 2 mi. so. of summit of skyline Drive on road along ridge to Santiago Peak. Santa Ana Mts. 1067 Comment
  UCR241668  Garrya flavescens Dick Newell, Judy Booth 2013-5-19 329 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest; Maple Springs Road, 2 miles north of Modjeska Peak 855 Comment
  CAS-BOT-BC192123  Garrya fremontii A. M. White 1974-6-2 74 -671 Orange 20 mi, E. of Santa Ana. North of Silverado 1005 Comment
  POM202591  Gastridium phleoides L. M. Booth 1932-5-19 1082 Orange Newport Bay. Comment
  RSA586252  Gastridium phleoides R. E. Riefner 1995-10-28 95 -383 Orange San Clemente State Beach Comment
  CDA25797  Gastridium ventricosum A. C. Sanders, Fred M. Roberts, A. O Neal 2008-5-9 35321 Orange Peninsular Range; Santa Ana Mountains; Weir Canyon, 0.3 mile west of Eastern Transportation Corridor (Highway 241) and 1.45 miles east of south end of Walnut Canyon Reservoir. Comment
  SEINET3237951 Image available Gastridium ventricosum A. C. Sanders 2008-4-29 35131 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
  CDA5145  Gaura coccinea Margaret Bellue, Andreas, E. L. Paddock 1942-8-29 Orange Stearns, La Brea Road, 1 mile north of Fullerton 0 Comment
  RSA39481  Gaura parviflora E. L. Paddock 1943-6-8 12730 Orange Whittier Road 1/4 mile west of Puente Street, Brea. Comment
  UC284868  Gayophytum diffusum subsp. parviflorum P. A. Munz 1923-9-7 7749 Orange Santiago Peak Santa Ana Mts. (near summit) 1645 Comment
  SEINET10728264  Gazania David B. Dunn 1971-8-13 Dunn 18119 Orange Cultivated plants vicinity of Laguna Beach. Comment
  UCR242702  Gazania linearis Fred M. Roberts 2012-5-10 7580 Orange SAN JOAQUIN HILLS: Buck Gully, south tributary, north slope Pelican Hill, just north of Pelican Hills Drive, 0.7 km N Pelican Hill summit 154 Comment
  POM8756  Geranium carolinianum P. A. Munz, R. D. Harwood 1920-4-24 3791 Orange Santa Ana Mountains, Sierra [Freemont] Canyon 366 Comment
  RSA682592  Geranium carolinianum Scott D. White, Brian Leatherman 1997-5-6 5037 Orange Santa Ana Mts: Santiago Canyon area. Unnamed tributary to Santiago Ck. flowing from the SW, directly west of Pancho Cyn. Lomas de Santiago S 179. 366 Comment
  UCR192636  Geranium carolinianum A. C. Sanders, Fred M. Roberts 2008-4-8 34754 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
  UCD169463  Geranium incanum var. multifidum R. E. Riefner Jr. 2012-6-30 12- 285 Orange City of Costa Mesa, Talbert Regional Park, general vicinity of Balboa Blvd. and 19th Street. 5 Comment
  RSA797024  Geranium incanum var. multifidum R. E. Riefner Jr. 2007-4-28 7 -189 Orange City of Newport Beach, Newport Bay, North Star Beach, vicinity of Morning Star Ln. 2 Comment
  RSA450856  Gilia angelensis Gordon Marsh 1978-3-17 s.n. Orange U.C. Irvine Ecological Preserve. 85 Comment
  SEINET7073547  Gilia angelensis A. G. Vestal 1963-3-27 s.n. Orange Ridge above Cai+-ada Gobernadora. Coordinate datum: NAD27. Comment
  RSA139632  Gilia angelensis John Ingram 1960-3-14 246 Orange 2 blocks east of Knotts Berry Place, on La Palma Avenue, Buena Park. Comment
  RSA628623  Gilia capitata subsp. abrotanifolia Sandy Leatherman, Fred Roberts, Brian Leatherman, Trish Smith 1998-5-23 13 Orange Black Star Canyon: Spur Road off of Black Star Canyon Road. 335 Comment
  RSA708369  Githopsis diffusa subsp. candida Fred M. Roberts, Robert L. Allen, Chris Barnhill, Nancy Hatfield 2005-5-30 6243 Orange Modjeska Peak summit, c.a. 60m south of highest point. 1675 Comment
  RSA785635  Gnaphalium beneolens Doris Bowers 1970-10-26 1708 Orange Black Star Can. Indian site 610 Comment
  IRVC441  Gnaphalium bicolor B. Savage 1965-5-15 Orange Newport Beach Comment
  RSA731759  Gnaphalium canescens subsp. microcephalum Fred M. Roberts, Sandy Leatherman 2007-11-9 6646 Orange San Juan Canyon along San Juan Creek, within the community of San Juan Hot Springs. 216 Comment
  POM201846  Gnaphalium chilense L. M. Booth 1932-12-13 1374 Orange Newport Bay. Comment
  RSA603364  Gnaphalium leucocephalum Scott D. White 1997-6-12 5342 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
  UCR126410  Gnaphalium leucocephalum Fred M. Roberts 2003-7-24 5963 Orange South Coast, San Juan Capistrano, San Juan Creek, c. 0.1 km NE of La Novia Bridge 27 Comment
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Jun 4 2013
  IRVC9358  Gnaphalium luteo-album B. Gittins 1963-3-19 57 Orange 635 Joan. Costa Mesa Comment
  POM4639  Gnaphalium ramosissimum C. B. Bradshaw s.n. Orange Santiago Canyon, Santa Ana Mts. Comment
  UCR100580  Gnaphalium stramineum B. G. Pitzer 1996-4-30 2764 Orange South Coast, Upper Newport Bay, Calif. Dept. Fish & Game Ecological Reserve, off (W of) Jamboree Road 6 Comment
  UCR158151  Gnaphalium stramineum Adrian Wolf 1998-5-27 340 Orange South Coast, Newport Slough, south of oil fields, between Huntington Beach, Costa Mesa and Newport Beach, just south of the channelized mouth of the Santa Ana River 2 Comment
  RSA703385  Gnaphalium stramineum R. E. Riefner Jr. 2004-5-6 04 -173 Orange Newport Beach, north side of Pacific Coast Hwy., west of Bayside Drive near Newport Dunes Beach Club. 10 Comment
  RSA698233  Godetia epilobioides Minor Warne 1934-4-14 s.n. Orange Laguna Canyon Forks. Comment
  CHSC35345  Grindelia camporum var. camporum James Henrickson 1972-10-21 Orange Newport Beach, So. of Jamboree Rd., E. of Irvine Coast Country Club near U.C. Irvine. 45 Comment
  HSC79042  Grindelia hirsutula Steve Boyd 1981-5-13 Orange Pelican Hill, Irvine Ranch property in the San Joaquin Hills S of Corona del Mar Comment
  UC897086  Grindelia hirsutula Julian A. Steyermark 1933-10-29 Orange San Clemente, Orange Co., on clay soil of coastal mesa. Comment
  UCSB48220  Grindelia hirsutula Roberts, Fred 1981-6-20 Orange Dana Point: 0.7km ENE Dana Hills High School 76 Comment
  RSA703141  Gutierrezia californica Fred M. Roberts, Art Davenport 2003-9-11 6015 Orange Rancho Mission Viejo: Donna O' Neill Land Conservancy. Cristianitos Cyn., 0.79 km N Sycamore Gate 0.23 km w of Crisianitos Road. 126 Comment
  SD236194  Gutierrezia californica A. C. Sanders, Fred M. Roberts, Amber O Neal 2008-5-9 35288 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir 299 Comment
  CAS-BOT-BC302139  Gutierrezia sarothrae L. R. Abrams 1901-6-1 1858 Orange El Toro Comment
  RSA701808  Gutierrezia sarothrae Fred M. Roberts 2000-6-8 5339 Orange Chino Hills: Yorba Linda, on ridge between Box and Lost Trough Canyons, c.a. 1.2km NE Bench Mark 388 266 Comment
  RSA581660  Hainardia cylindrica Tony Bomkamp 1995-06 s.n. Orange Gabino Canyon, near confluence with Cristianitos Canyon. (San Clemente USGS 7.5' quadrangle) Comment
  HSC5758  Haplopappus venetus J. W. Johnson 1961-3-29 Orange Newport Beach, N slope overlooking upper Newport Bay Comment
  UCR237837  Haplopappus venetus Mark A. Elvin 2003-2-2 2285 Orange South Coast, San Joaquin Marsh, UCI campus SSE of intersection of Jamboree Blvd. and Campus Dr. 2 Comment
  UCR241069  Harpagonella palmeri Dick Newell, Don Millar, Gigi Logan 2013-3-19 321 Orange Peninsular Range; Santa Ana Mtns., Silverado-Mod. Trail, 1.27 miles north of Blackstar and Silverado Canyon Rd. 366 Comment
  RSA0066586  Harpagonella palmeri Fred M. Roberts, Dave Bontrager 1990-4-18 4565 Orange Rancho Mission Viejo: ridge between Christianitos and Gabino Canyons (Riverside Cement Lease Holding), 5.5 km SE Playa Survey Marker. 152 Comment
  RSA0066590  Harpagonella palmeri Richard E. Riefner Jr. 2000-4-28 20 -393 Orange NCCP North Ranch Policy Plan Area. E of Main Divide Road; NE of Windy Ridge. 533 Comment
  RSA0066592  Harpagonella palmeri R. A. Hamilton 2001-5-17 s.n. Orange Crystal Cove State Park, near Pelican Point. The site is located 305m south of Pacific Coast Highway and 671m east of Cameo Shores Drive. 30 Comment
  RSA0002527  Hasseanthus elongatus L. R. Abrams 1901-06 1785 Orange San Joaquin Hills Comment
  UCR26998  Hedera helix E. W. Lathrop 1966-5-13 6297 Orange Santa Ana Mountains, 5 mi east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest 400 Comment
  RSA562726  Hedypnois cretica Steve Boyd 1992-5-20 7462 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
  RSA685925  Hedypnois cretica Fred M. Roberts 2003-3-27 5624 Orange Rancho Mission Viejo:Donna O'Neill Land Conservancy, Chistianitos Canyon, along North Ride Trail, 1.37 km N Sycamore Gate, 0.36 km W Chistianitos Rd. 114 Comment
  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
  SD42290  Hedypnois cretica C. B. Wolf 1938-5-2 9406 Orange Fullerton, Francis Street, 1200 block, east side in vacant lot 60 Comment
  UCR190995  Hedypnois cretica A. C. Sanders, Fred M. Roberts 2008-4-22 35059 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge c. 1/4 mi. SE of VABM Bee, above Bee Canyon landfill on road from Hicks Canyon Haul Rd. to Limestone Canyon, c. 3.5 miles WSW of Silverado 493 Comment
  UCSB48061  Hedypnois cretica Fritzke, S.; Roberts, Fred 1982-4-3 Orange Dana Point Headlands: north of Dana Strand Rd., 0.5km W Dana Point Harbor; 0.8km SSW Richard Henry Dana School 80 Comment
  UCR250859  Helianthemum scoparium Dick Newell, Don Millar 2014-2-18 354 Orange Peninsular Range; Santa Ana Mtns., mouth of Fremont Canyon wash at MWD Road crossing 201 Comment
  RSA16357  Helianthemum scoparium var. aldersonii P. C. Everett 1935-6-18 7175 Orange Santa Ana Mts., San Juan Canyon, near Ortega Highway on Road to Santiago Pk, 701 Comment
Read comments
Dec 14 2011
  POM201743  Helianthus annuus subsp. lenticularis L. M. Booth 1932-6-29 1230 Orange Newport Bay. Comment
  RSA5861  Helianthus annuus subsp. lenticularis C. B. Wolf 1932-6-28 3782 Orange Edge of field on Bryant Ave., 300 ft. W. of N.E. corner of N.W. 1/4 of S.E. 1/4 sect27 T4S RNW 9 Comment
  RSA873  Helianthus annuus subsp. lenticularis J. T. Howell 1927-7-27 484 Orange Near ranch, Rancho Santa Ana 152 Comment
  CAS-BOT-BC305656  Helianthus ciliaris T. C. Fuller 1962-6-7 8871 Orange Union Oil lease, Deodoro St., 1.2 mi. e. of Brea Blvd., Brea Comment
  UCD132778  Helianthus ciliaris T. C. Fuller 1962-6-7 8874 Orange Veeh ranch, north of El toro, around 11 miles southeast of Tustin. Comment
  RSA7324  Helianthus gracilentus E. R. Johnson 1933-7-6 5167 Orange 1/2 mile south of Mexican houses, Rancho Santa Ana 122 Comment
  RSA874  Helianthus gracilentus J. T. Howell 1927-7-3 256 Orange Claymine Canyon near Sierra Peak. 305 Comment
  UCR192093  Helianthus gracilentus A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35293 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir 300 Comment
  UCSB47624  Helianthus gracilentus Roberts, Fred 1980-5-3 Orange Santa Ana Mtns.: Main Divide Truck Trail, 1.0 km SE Blue Jay Campground; 2.8km WSW El Cariso Guard Station 1010 Comment
  CDA20834  Heliotropium curassavicum P. Akers 2006-3-25 PA 8 -06 Orange Peninsular Ranges; Yorba Linda. Santa Ana River S of La Palma Dr, 0.6-0.9 mi E of Yorba Linda Dr. 121 Comment
  RSA647  Heliotropium curassavicum var. oculatum J. T. Howell 1927-6-17 159 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  CSUSB739  Heliotropium curassavicum var. oculatum Cesareo Perez 1971-5-15 Orange Huntington State Beach Pacific Coast Highway @ Brookhurst, Huntington Beach, CA. Comment
  RSA77876  Heliotropium curassavicum var. oculatum F. W. Peirson 1924-8-29 5077 Orange 3 miles from Balboa Beach. Comment
  CAS-BOT-BC305898  Helminthotheca echioides Ira L. Wiggins 1965-10-18 20278 Orange At NE corner of Chapman Ave. and Victor Dr., Fullerton Comment
  SEINET10802443  Helminthotheca echioides David B. Dunn Dunn 22400 Orange Collected around the condominium-Pacific Island Estates in Laguna Niguel area. 30 Comment
  CLARK-A1528-238  Hemizonia fasciculata Cesareo Perez 1971-5-18 19 Orange Villa Park Comment
  RSA232233  Hemizonia fasciculata James Henrickson 1970-7-25 5069 Orange 2 miles N of Huntington Beach along NE margin of Bolsa Chica Salt March. 0 Comment
  RSA750921  Hemizonia fasciculata A. C. Sanders, Fred M. Roberts 2008-7-3 35705 Orange Weir Canyon, along Weir Canyon Rd. 1.2 mi. SSE of Walnut Canyon Reservoir, below Upper Blind Canyon Rd. 212 Comment
  UCR107857  Hemizonia fasciculata Scott D. White, B. Leatherman 1998-1-26 6069 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
  RSA682919  Hemizonia paniculata Scott D. White, Amanda Duchardt 2003-5-1 9147 Orange Santa Ana Mtn Foothills; slopes above the west side of Canada Gobernadora and adjacent small canyon to the west. 76 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
  JEPS43407  Hesperocnide tenella Lawrence M. Booth 1932-5-19 1064 Orange Newport Bay Comment
  CAS-BOT-BC143753  Heteromeles arbutifolia C. B. Wolf 1932-3-6 1840 Orange Trabuco Canyon 1/2 mi. above Trabuco Oaks, west slope of Santa Ana Mts. 457 Comment
  CAS-BOT-BC143755  Heteromeles arbutifolia John Thomas Howell 1927-7-16 2783 Orange Hills on north side of Santa Ana [Canon] Canyon 152 Comment
  UC527322  Heteromeles arbutifolia Carl B. Wolf and B. D. Stark 1932-12-19 Orange 0.5 mi from Skyline Drive (on firebreak road to Sierra Peak); Santa Ana Mts. 762 Comment
  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
  SD245469  Heteromeles arbutifolia Robert Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49621 Orange Santa Ana Mountains: about 1 mile above San Juan Fire Station. Comment
  IRVC799  Heterotheca grandiflora A. S. Boughey 151 Orange [San Juan Canyon], Ortega Hwy, 1mi E San Juan Guard Sta. Santa Ana Mountains Comment
  RSA0075808  Heterotheca grandiflora Fred M. Roberts 2008-9-28 7110 Orange Dana Point: Dana Point Headlands, CNLM Preserve near NE Gate, 0.5 km W Marine Institute (Dana Point Harbor). 75 Comment
  RSA0075816  Heterotheca grandiflora L. M. Booth 1932-5-25 1112 Orange Balboa Island [Newport Bay]. Comment
  SEINET11266845  Heterotheca grandiflora R. Nelson, Baumann; Kondratieff; Sargent 1988-1-12 5117 Orange San Juan Creek at Lower San Juan Campground.; 0 366 Comment
  CHSC30405  Heterotheca sessiliflora T. B. Devine 1980-4-2 620 Orange On Back Bay Dr. E. of Upper Newport Bay ca 2 mi. N. of jct. with Jamboree Rd. Comment
  UCR220968  Heterotheca sessiliflora Dick Newell, Don Millar 2010-8-17 32 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Limestone Ridge Rd. 200 ft. south of Markel Spur Rd., 0.8 mi. west of Santiago Canyon rd, 427 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
  RSA689546  Heterotheca sessiliflora subsp. echioides R. E. Riefner 2000-8-8 20 -715 Orange NCCP North Ranch Policy Plan Area. NE property; E slope of upper Fremont Cyn.; S of Donaldson Ranch area and S of powerline / National Forest boundary. 454 Comment
  UCD150984  Hieracium argutum D. S. Park 2010-4-25 29 Orange Whiting Ranch Wilderness Park, along trail. Open, disturbed areas. 254 Comment
  RSA702204  Hirschfeldia incana Fred M. Roberts, David E. Bramlet 2003-6-20 5921 Orange Rancho Mission Viejo: Donna O Neill Land Conservancy, tributary to Christianitos Cyn, along Back Road, 1.48 km WNW Sycamore Gate. 189 Comment
  UCSB48229  Hirschfeldia incana Roberts, Fred 1981-7-8 Orange Rancho Mission Viejo: Calif. Rte. 74, 5.2 km ENE San Juan Capistrano by road 100 Comment
  CDA27090  Hoffmannseggia glauca Goodwin 1933-6-7 Orange 0 Comment
  UC537011  Hoita macrostachya Lawrence M. Booth 1932-7-1 1236 Orange Anaheim Marsh Comment
  JEPS65636  Hoita orbicularis Alice King April, 1908 Orange near Santa Ana; Santa Ana River Comment
  RSA678515  Hordeum depressum Valerie L. Soza, Kenneth Clark, LeRoy Gross, Will Miller, Fred M. Roberts, Gary D. Wallace 2001-4-4 1132 Orange Seal Beach U. S. Naval Weapons Station, southeastern edge of Seal Beach National Wildlife Refuge. Northern edge of Huntington Harbor. 3 Comment
  RSA701429  Hordeum depressum Rankin s.n. Orange Laguna Beach Comment
  UCR104647  Hordeum depressum D. E. Bramlet 1996-4-20 2458 A Orange Marsh adjacent to Upper Newport Bay, c. 122m SE of the end of University Dr. and 15.2 m west of the Delhi channel Comment
  RSA655235  Hordeum intercedens D. E. Bramlet 1998-5-21 2626 Orange On slope adjacent to a tributary of Segunda Deshecha Canada, approximately 610m north of the existing access road (Telaga Valley Dr.) and 2.9 km north of Avenida Pico;, The site is approximately 1.93 km west of Cristianitos Canyon & 640m west of Wilson Camp Road. UTM 11S 04 45 670mE X 37 04 912mN 201 Comment
  RSA799617  Hordeum intercedens Justin M. Wood 2011-4-12 3652 Orange South Coast: City of Costa Mesa. Fairview Park, just WNW of Marison Special Education Center. 24 Comment
  UCR142296  Hordeum intercedens D. E. Bramlet, Sandy Leatherman 1998-5-21 2626 Orange Slope adjacent to a tributary of Segunda Deshecha Canada, c. 610 m N of the exisitng access road (Telaga Valley Dr.) and 2.9 km N of Avenida Pico. c. 1.93 km west of Cristianitos Canyon and 640 m west of Wilson Camp Rd 201 Comment
  UCR158149  Hordeum intercedens Adrian Wolf 1998-5-4 204 Orange South Coast, Coastal Hills, Aliso/Woods Canyon Regional Park, trail to Dripping Cave, in Woods Canyon 1 km up from confluence with Aliso Canyon, west of Sheep Hills, south of Dripping Cave 134 Comment
  CAS-BOT-BC289364  Hordeum murinum subsp. glaucum Ira L. Wiggins 1966-3-1 20480 Orange Western edge of California State College at Fullerton Comment
  UCD85922  Hordeum murinum subsp. leporinum A. A. Beetle 1942-4-19 3096 Orange Rt. 101. 2 miles north of Laguna Beach. Comment
  IRVC20520  Horkelia cuneata subsp. puberula Fred M. Roberts 1983-9-26 1114 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
  IRVC23057  Horkelia cuneata subsp. puberula Fred M. Roberts, M. L. Polek 1985-6-18 1953 Orange Santa Ana Mtns: Chiquito Basin, San Juan Trail, 1.8km SW Blue Jay Campground, 2.7km SSE Los Pinos Pk. Peninsular Ranges 866 Comment
  SEINET187061  Horkelia cuneata subsp. puberula P. A. Munz 1936-4-20 14606 Orange Mt Olympus Laguna Beach 152 Comment
  CAS-BOT-BC537313  Horkelia cuneata var. puberula Philip A. Munz 1936-4-20 14606 Orange Mt. Olympus, Laguna Beach 152 Comment
  CAS-BOT-BC537314  Horkelia cuneata var. puberula Philip A. Munz 1936-4-20 14606 Orange Mt. Olympus, Laguna Beach 152 Comment
  IRVC17879  Hulsea heterochroma G. Reynolds 1980-7-3 Orange along fire road, west side of Modjeska Peak, near top, Santa Ana Mountains Comment
  RSA80329  Hydrocotyle umbellata J. T. Howell, F. Peirson 1927-8-13 7687 Orange Santa Ana River, Rancho Santa Ana, eastern end of Orange County. Comment
  RSA697416  Hymenolobus procumbens Elisabeth Norland 1929-2-16 3 Orange Cypress. Comment
  RSA16349  Hypericum formosum var. scouleri P. C. Everett 1935-6-18 7184 Orange Santa Ana Mts., Main Divide Motorway to Santiago Pk., 1 mi. from Ortega Highway. 732 Comment
  RSA458246  Hypericum formosum var. scouleri Claire Kibbe 1936-07 19972 Orange Santa Ana Canyon. Comment
  RSA0038505  Ipomoea cairica R. E. Riefner Jr. 2012-11-27 12 -563 Orange city of laguna Beach, South Crescent Beach, Circle Way near Cliff Drive 3 Comment
  IRVC996  Ipomoea mutabilis McGuire 1965-5-10 Orange Corona del Mar. Newport Beach Comment
  RSA167492  Isocoma menziesii var. menziesii R. F. Thorne, Percy C. Everett 1963-9-25 33211 Orange On disturbed bluff top, Dana Point. Comment
  SD124238  Isocoma menziesii var. menziesii C. W. Tilforth 1976-10-21 1225 Orange Slopes above Santa Ana River Canyon on Rancho Santa Ana Comment
  POM4695  Isocoma menziesii var. vernonioides D. L. Crawford 1916-8-1 s.n. Orange Beach shore & near hills. Comment
  UC1424927  Isocoma menziesii var. vernonioides C. W. Tilforth 1975-9-6 1049 Orange ne shoreline of Upper Bay (above Coastal Salt Marsh); Newport Beach, Upper Bay Comment
  UC221420  Isocoma menziesii var. vernonioides F. M. Reed 1917-7-1 3918 Orange bluffs at Laguna Laguna Comment
  RSA757058  Isolepis cernua O. F. Clarke, Roger E. Reinke 2004-11-14 s.n. Orange Newport Back Bay 3 Comment
  CAS-BOT-BC324739  Iva axillaris Carl B. Wolf 1932-6-28 3804 Orange Bryant Ranch, edge of field on Bixy Ave. 228 Comment
  RSA362297  Iva axillaris subsp. robustior R. Ahlefed, R. Pope 1966-5-12 s.n. Orange Lomas de Santiago: Irvine Ranch. Comment
  UC729954  Iva axillaris subsp. robustior Carl B. Wolf 1932-6-28 3804 Orange edge of field Bixby Ave; Bryant Ranch 228 Comment
  UCR220031  Iva hayesiana Rebecca T. Vo 2010-6-5 s.n. Orange South Coast, Huntington Beach, Santa Ana River Bike path on west side of the mouth of the Santa Ana River, near Orange County Sanitation Treatment Plant, north of Pacific Coast Hwy and east of Brookhurst St. 1 Comment
  CAS-BOT-BC426246  Jepsonia parryi John Thomas Howell 1929-2-7 4094 Orange Claymine Canon, n. Samta Ana Mts. 243 Comment
  RSA0011055  Juglans californica D. E. Bramlet 2008-6-5 4291 Orange Santa Ana Mtns foothills: Tributary to Weir Cyn., 731 m N of the SCE Transmission Line & 229m west of Weir Canyon Road. 257 Comment
  SD42257  Juglans californica Carl B. Wolf 1939-11-29 9545 Orange Orange County Picnic Grounds. Comment
  UCSB47595  Juglans californica Roberts, Fred 1980-4-5 Orange Highway 74; San Juan Canyon; 0.4km sw Lower San Juan Picnic Ground; Santa Ana Mountains 390 Comment
  RSA0011059  Juglans californica I. L. Wiggins 1966-5-11 20660 Orange Carbon Canyon about 1 mile above its mouth. Comment
  RSA0011064  Juglans californica E. W. Lathrop 1970-12-7 7146 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest 396 Comment
  RSA791495  Juglans californica Robert F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49613 Orange Santa Ana Mountains: along Ortega Highway (74) about 2.5 miles above San Juan Fire Station Comment
  SD70810  Juglans californica var. californica Lucille Kempers 1955-3-19 252 Orange Flying Cow Ranch in Carbon Canyon 259 Comment
  SD7922  Juglans californica var. californica George R. Kleeberger 1878-12-1 Orange Santa Ana Valley Comment
  CAS-BOT-BC414248  Juglans hindsii R. E. Riefner, Jr. 2014-7-10 14 -240 Orange City of Laguna Beach, Laguna Canyon, Sun Valley Dr. along creek near Stan's Ln. 73 Comment
  RSA0025286  Juglans hindsii R. E. Riefner Jr. 2011-4-22 11 -34 Orange City of Laguna Beach, Laguna Canyon, Laguna Wilderness Park, Stagecoach Trail, ca. 0.15 mi N of El Toro Rd. on W side of Laguna Canyon Rd. 86 Comment
  UCD169185  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
  UCR216055  Juglans hindsii R. E. Riefner Jr. 2009-8-12 09- 168 Orange Peninsular Range; Foothills of Santa Ana Mtns., near Silverado, Cook's Corner area, Santiago Canyon Road at Lawrence Canyon Rd. 335 Comment
  RSA286441  Juncus acutus subsp. leopoldii Mary H. O Brien 1976-5-1 s.n. Orange Bolsa Chica Bay, 1/4 mile south of Bolsa Chica State Beach entrance station and 50m east of Hwy 1; Sea level Comment
  UC842095  Juncus acutus subsp. leopoldii Louis C. Wheeler 1932-6-25 869 Orange inlet arm of Newport Bay Newport Bay 0 Comment
  UCSB36209  Juncus acutus subsp. leopoldii Ferren, Wayne; Whitmore, S.; Millett, B. 1980-8-27 Orange Newport Backbay just W of Backbay Drive; ca. 3 km V NE of Rt. 1; Newport Beach Comment
  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
  RSA103  Juncus bufonius J. T. Howell 1928-4-14 915 Orange Santa Ana River, Rancho Santa Ana. 152 Comment
  UCR191445  Juncus bufonius A. C. Sanders, Fred M. Roberts 2008-4-8 34728 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, head of Hicks Canyon, S of Santiago Reservoir 351 Comment
  RSA754063  Juncus patens A. C. Sanders, Fred M. Roberts 2008-7-16 35856 Orange Lomas de Santiago, upper Hangmans Tree Canyon 395 Comment
  RSA0014060  Juncus rugulosus Fred M. Roberts, R. E. Riefner 2010-5-30 7134 Orange Lomas de Santiago: Loma Ridge, Hanging Man s Tree Cyn., along Hanging Man s Tree Cyn. Rd., c.a. 0.4km W Santiago Cyn. Rd., and 1.2 km N Bolero Lookout. 372 Comment
  RSA603360  Juncus rugulosus Scott D. White 1997-6-12 5317 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
  JEPS74130  Juncus textilis Lawrence M. Booth 1932-6-7 1159 Orange Newport Lagoon Comment
  RSA644963  Juncus textilis R. E. Riefner, Adrian Wolf 2000-1-24 20 -108 Orange NCCP North Ranch Policy Plan Area: Fremont Canyon: N of Santiago Creek & immediately N. of major stream fork. 305 Comment
  RSA104  Juncus torreyi J. T. Howell 1927-7-14 399 Orange Santa Ana River, Rancho Santa Ana. 152 Comment
  RSA7323  Juncus xiphioides E. R. Johnson 1933-7-5 5166 Orange Rancho Santa Ana. 122 Comment
  UCR193276  Juncus xiphioides A. C. Sanders, Fred M. Roberts 2008-6-17 35510 Orange Peninsular Range; Santa Ana Mtns., middle section of Weir Canyon, SSE of Walnut Canyon Reservoir 225 Comment
  UCR193843  Juncus xiphioides A. C. Sanders, Fred M. Roberts 2008-7-16 35857 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, upper Hangmans Tree Canyon 395 Comment
  RSA21231  Juniperus californica E. R. Johnson 1937-3-28 8502 Orange 4 9/10 mi. E. of San Juan Capistrano on No. side of Ortega Highway. 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
  NY786525  Keckiella antirrhinoides var. antirrhinoides D. C. Michener 1980-6-5 3668 Orange Santa Ana Mountains. San Juan river valley, on terrace near abandoned mine(s). Comment
  CAS-BOT-BC235723  Keckiella cordifolia F. W. Pennell; E. M. Harvey 1949-6-29 26806 Orange Ortega Highway, above San Juan Capistrano 365 Comment
  LA105129  Keckiella cordifolia David C. Michener; 1980-7-14 3704 Orange Santa Ana Mountains, Starr Ranch Audubon Sanctuary, Crow Creek, ca. 1.3 mi N of confluence with Bell canyon Comment
  LA209269  Keckiella cordifolia W. E. Pequegnat; August 1937 16 Orange Santa Ana Mountains, Santiago Peak 1523 Comment
  RSA293306  Keckiella cordifolia D. C. Michener 1980-7-14 3704 Orange Starr Audubon Sanctuary. Riparian woodland margin in Crow Creek ca. 1.3 mi. north of jct along Bell Canyon. 250 Comment
  RSA659638  Keckiella cordifolia T. A. Daubert 1991-5-26 676 Orange Tucker Wildlife Sanctuary, Modjeska Canyon, turn around island Comment
  RSA659899  Keckiella cordifolia Karl Price 1988-5-21 40 Orange An unnamed side canyon within Hot Springs Canyon. It is on Hot Springs Canyon Rd., 0.75 mi. North of Ortega Hwy. (74), 12.6 mi. East of San Juan Capistrano. 305 Comment
  RSA736148  Keckiella cordifolia Rosemarie Zimmermann 1963-6-8 280 Orange Off State Hwy 18, on Oak Ridge Estates Rd. About 7 mi. E. of Hwy 101and El Toro. Near O'Neil Park. 610 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
  UC1063228  Keckiella cordifolia A. Lewis May 1934 426 Orange Trabuco Canyon; Elsinore Quad. 1341 Comment
  RSA703848  Koeleria macrantha D. E. Bramlet 2003-3-20 3352 A Orange Donna O'Neill Reserve. NE corner of the reserve 150m west of Cristianitos Rd. and 1.77km north of the E-W access road. Comment
  RSA708524  Koeleria macrantha Fred M. Roberts, Robert L. Allen, Chris Barnhill, Nancy Hatfield 2005-5-30 6242 Orange Modjeska Peak summit, c.a. 60m south of highest point. 1675 Comment
  CDA35534  Koelreuteria bipinnata D. G. Kelch, Mark Elvin 2006-12-9 6 .556 Orange Irvine. University Dr along tidal creek just E of I-73. Comment
  SEINET4559543  Koelreuteria bipinnata T. B. Salvato, Katie Kurtz, Mitch Provance 2006-1 1903 Orange South Coast; Irvine, San Diego Creek Flood control channel between Campus Drive and Michelson Drive 6 Comment
  UCR266665  Koelreuteria bipinnata Fred M. Roberts, Sandra L. Leatherman 2008-9-3 7081 Orange YORBA LINDA: Santa Ana River Canyon, Santa Ana River, 0.6 km W Gypsum Cyn. bridge, south of La Palma Ave 113 Comment
  RSA5802  Lactuca serriola C. B. Wolf 1932-6-28 3780 Orange Along western half of no. boundary of 40 acre Valencia Orange grove at Bryant Ave. and Hansen Road. 9 Comment
  UCSB57553  Laennecia coulteri Roberts, Fred 1985-8-19 Orange Crystal Cove State Park; Pelican Point, border of old stable site, 0.1 km. from ocean; UTM 3715800mN, 420900mE 20 Comment
Read comments
Feb 22 2019
  RSA731984  Lamarckia aurea A. C. Sanders, Fred M. Roberts 2008-4-8 34769 Orange Peninsular Range: Lomas de Santiago, SSE os f Santiago Reservoir on Harding Truck Trail at Dripping Springs Loop, above Limestone Canyon. 475 Comment
  SFV16193  Lamarckia aurea R. K. Stachelek, B. Anderson, F. Schropshire 1995-3-1 43 Orange Newport Beach - Santa Ana city border. Along University Road footpath about 0.25 miles from intersection with Irvine Ave. Comment
  UC1090437  Lamarckia aurea Milo S. Baker 1958-5-20 13297 Orange Santa Ana Mountains Comment
  UC1132162  Lamarckia aurea A. Lewis Apr 1934 377 Orange Coal Mine 304 Comment
  RSA651779  Lamarckia aurea Bill Amling 1948-5-2 5 Orange 10681 Flower St. Stanton. 242 Comment
  UCR166703  Lantana camara Scott D. White, Jennifer H. Jones 2005-3-31 10854 Orange South Coast, City of Laguna Beach. 549 Nyes Place. Proposed home site on c. 0.5 acre. 91 Comment
  UCR186588  Lantana camara Robert DeRuff 1996-7-11 499 Orange Southern Coast, Newport Beach, Newport Back Bay, north side of Big Canyon 3 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
  UC2061417  Lasthenia gracilis Rachael L. Olliff Yang with Alice J. Olliff 2017-3-30 13 Orange UC Irvine Ecological Reserve, about 100 m West of Los Trancos Drive, along the trail. Comment
  UCR106311  Lasthenia gracilis B. G. Pitzer, M. Georgiady 1997-4-5 3095 Orange San Joaquin Hills, Crystal Cove State Park, portion across highway on the beach, bluffs immediately above beach and adjacent terraces for southeast end of park. 24 Comment
  RSA545171  Lasthenia gracilis Timothy S. Ross, Amy Kendall 1992-4-15 6194 Orange San Clemente Island. Central upland portion of the island, SW of 'Ledge'; 236 degrees SW, ca 170m distant from summit of 'Ledge.' 393 Comment
  RSA789492  Lasthenia gracilis Aileen Adams 1932-4-29 8 Orange Slope above dam. [Orange Co.?] Comment
  IRVC11716  Lathyrus vestitus subsp. laetiflorus B. T. Gittins 1963-4-18 171-D Orange Silverado Canyon. Santa Ana Mountains Comment
  UCR17212  Lavatera cretica Emily Carlton 1966-4-18 51 Orange Pacific coast, Laguna Beach, corner of Agate and Santa Cruz Streets. 30 Comment
  RSA715699  Lemna minuta Fred M. Roberts, Chris M. Barnhill 2005-9-27 6280 Orange San Juan Capistrano: San Juan Creek wash, east of La Novia Road bridge, 1.4km E Mission San Juan Capistrano, 27 Comment
  RSA539348  Lemna minuta Fred M. Roberts, Gordon Marsh 1987-8-31 3589 Orange Santa Ana River: adjacent to Santa Ana. 15 Comment
  IRVC1088  Lepidium lasiocarpum D. Van Gorden 1965-4-2 Orange Anaheim and Meyer Field. Costa Mesa Comment
  UCR112097  Lepidium lasiocarpum A. C. Sanders, D. Malueg, K. D. Jones 2000-4-19 23338 Orange Pacific Coast, Bolsa Chica Lagoon, along dirt roads in oil field, east of Hwy 1, east of Bolsa Chica St. 11 Comment
  SD236245  Lepidium latifolium A. C. Sanders, Fred M. Roberts 2008-9-18 36090 Orange Peninsular Range; Santa Ana Mtns. Foothills: Lomas de Santiago, Santiago Creek Canyon ca. 0.5-0.8 miles above the highway bridge (El Toro 7.5'Q) 299 Comment
  UCR197577  Lepidium latifolium A. C. Sanders, Fred M. Roberts 2008-9-18 36090 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Santiago Creek Canyon c. 0.5-0.8 miles above the highway bridge 300 Comment
  CAS-BOT-BC12522  Lepidium nitidum Carl B. Wolf 1932-3-8 2683 Orange 0.5 mile north of Corona Del Mar borders of Newport Bay. 7 Comment
  IRVC1093  Lepidium nitidum D. Orr 1965-4-10 Orange Trabuco Road, 3mi E El Toro Marine Base. El Toro Comment
  IRVC1097  Lepidium nitidum A. S. Boughey 141 Orange [San Juan Canyon], Ortega Hwy, 1mi E San Juan Guard Sta. Santa Ana Mountains 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
  IRVC1108  Lepidium nitidum B. Mawdsley 1965-3-24 Orange Corona del Mar, Narcissus and 5th. Newport Beach Comment
  RSA328  Lepidium virginicum var. pubescens J. T. Howell 1927-6-21 175 Orange Near ranch houses, Rancho Santa Ana. 152 Comment
  RSA703698  Lepidium virginicum var. robinsonii Fred M. Roberts, Arthur Davenport 2004-2-20 6025 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
  RSA734396  Lepidospartum squamatum Keith E. Hoffmaster 1935-4-14 598 Orange Trabuco creek., 1/4 mi. above CCC camp at Trabuco Oaks, Santa Ana Mts. Comment
  CAS-BOT-BC274367  Leptochloa Ira L. Wiggins 1965-11-5 20336 Orange Along west side of village of Atwood Comment
  UCR154270  Leptochloa uninervia Mark A. Elvin 2004-5-2 3425 Orange Southern Coastal, Irvine: San Joaquin Freshwater Marsh, near Campus and University Drives; 1.7 km (air) NNW UC Irvine campus center 3 Comment
  UC484228  Leptodactylon californicum C. B. Wolf 1931-3-6 1831 Orange on Trabuco Canyon Road 1 1/2 mi below Trabuco Oaks; below Trabuco Oaks 304 Comment
  UCR230226  Leptodactylon californicum Dick Newell, Don Millar 2011-3-15 084 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Agua Chinon Wash along Limestone Cyn. Rd. 252 Comment
  RSA788816  Leptosiphon floribundus R. F. Thorne 1977-11-21 49985 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp Comment
  RSA789223  Leptosiphon parviflorus Naomi Fraga 2009-5-11 2718 Orange San Juan loop trail, Cleveland National Forest just west of Sugarloaf Spur Trail. 912 Comment
  UCR241909  Lessingia filaginifolia Fred M. Roberts 2012-5-10 7567 Orange Peninsular Ranges; Coastal Foothills, San Joaquin Hills, Buck Gully, south tributary, north slope Pelican Hill, just north of Pelican Hills Drive, 0.7 km north of Pelican Hill summit 154 Comment
  UCR140884  Leucojum aestivum Robert DeRuff 1988-2-20 352 Orange Southern Coast, Costa Mesa, Irvine Blvd. and 23rd Street 9 Comment
  RSA172340  Leymus condensatus R. F. Thorne 1963-7-26 32843 Orange Tin Mine Canyon above Beek's Spring, Trabuco District, Santa Ana Mountains, Cleveland National Forest 762 Comment
  RSA51  Leymus condensatus E. R. Johnson 1927-6-10 77 Orange Rancho Santa Ana. Alt 500 ft. 152 Comment
  RSA0018625  Leymus condensatus R. H. McArthur 1934-5-19 s.n. Orange Trabuco Canyon Bottom. Comment
  JEPS71200  Leymus triticoides L. M. Booth 1932-6-7 1156 Orange Newport Bay Comment
  RSA108341  Leymus triticoides Frank W. Gould 1943-4-12 2101 Orange About 7 miles northeast of Anaheim, on sand railroad siding. Comment
  UC817468  Leymus triticoides Carl B. Wolf 1932-6-13 3726 Orange Fullerton; Malvern and Nicholas Aves. 53 Comment
  CDA35061  Ligustrum lucidum Mark A. Elvin, D. Kelch, B. S. Nerhus, P. Iluore 2006-12-9 5327 Orange Southern Coastal; Newport Backbay; along Bayside Drive ca. 100 miles west of Eastbluff Drive. Comment
  CAS-BOT-BC130580  Lilium humboldtii John Thomas Howell 1927-7-3 2645 Orange Claymine [Canon] Canyon, n. Santa Ana Mts. 304 Comment
  RSA716775  Lilium humboldtii Fred M. Roberts, Michelle Balk, Robert Allen, Chris Brnhill 2004-6-19 6066 Orange Santa Ana Mtns: Holy Jim Cyn.: Holy Jim Trail, 3.5km SE summit of Santiago Peak. 610 Comment
  UCSB48192  Lilium humboldtii Roberts, Fred 1981-6-26 Orange Santa Ana Mtns 329 Comment
  RSA125  Lilium humboldtii subsp. ocellatum J. T. Howell 1927-7-26 479 Orange Claymine Canon near Sierra Peak. 244 Comment
Read comments
Apr 8 2018
  UCR186424  Limonium otolepis Robert DeRuff 1997-5-23 504 Orange Southern Coast, Newport Beach, Newport Back Bay, Delhi Channel 0 Comment
  RSA161163  Limonium perezii Peter H. Raven 1957-9-28 11394 Orange Laguna Beach. Comment
  UCR219808  Limonium perezii 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
  UCR219807  Limonium ramosissimum Rebecca T. Vo 2010-6-5 s.n. Orange South Coast, Huntington Beach, Santa Ana River Bike path on west side of the mouth of the Santa Ana River, near Orange County Sanitation Treatment Plant, north of Pacific Coast Hwy and east of Brookhurst St. 1 Comment
  IRVC29782  Limonium sinuatum Mark A. Elvin, Dean Kelch 2006-12-9 5294 Orange Newport Backbay; Big Canyon, lower end. Southern Coastal 3 Comment
  UC1923254  Limonium sventenii R. E. Riefner Jr. 2008-2-16 8 -28 Orange City of Lake Forest (El Toro), El Toro Rd. near Raymond St., Canada de Los Alisos. 98 Comment
  CAS-BOT-BC226772  Linanthus californicus Marcus E. Jones 1926-3-10 s.n. Orange Near Santa Ana Canon [Canyon] Comment
  RSA221060  Linanthus californicus E. W. Lathrop 1966-3-23 6110 Orange 4 miles northeast of Lake Irvine, Black Star Canyon, Cleveland National Forest, Trabuco District. Comment
  SD41252  Linanthus californicus Darley F. Howe 1946-6-3 Orange Santa Ana Mountains Comment
  RSA734640  Linanthus dianthiflorus A. C. Sanders, Fred M. Roberts 2008-3-25 34559 Orange Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  RSA753417  Linanthus dianthiflorus D. E. Bramlet 2008-3-31 4137 Orange 223m E of Upper Hicks Haul Rd, Trib. to Limestone Cyn, 1km S of Santiago Cyn Rd. 328 Comment
  UC729697  Linanthus dianthiflorus Carl B. Wolf 1932-3-8 Orange Santiago Dam, w base of Santa Ana Mts. Santa Ana Mts. 304 Comment
  UCR177690  Linanthus liniflorus Fred M. Roberts, D. E. Bramlet 2003-5-1 5693 Orange Coastal Plains & Basins; South Coastal Plain region, Rancho Mission Viejo: Donna O'Neill Land Conservancy, Cristianitos Cyn., 0.56 km SSW Gato Gate and 0.21 km west of Cristianitos Rd. 96 Comment
  RSA698401  Linanthus parviflorus Dorothy Sammis s.n. Orange Trabuco Canyon. Comment
  CHSC42325  Linanthus pungens 1889-4-1 Orange Laguna (label illegible). Comment
  RSA0054843  Linaria canadensis Keith E. Hoffmaster 1927-4-2 304 a,b,c,d Orange Santa Ana Mts. San Onofre. Comment
  RSA773515  Linaria canadensis var. texana Fred M. Roberts 1999-5-3 5205 Orange Lomas de Santiago: ridge between Limestone Canyon and Santiago Canyon Wash, 0.4 km SE Silverado School, and 3.9 km Bolero Lookout 351 Comment
  CDA6326  Linaria maroccana J. McNeill 1969-4-1 3034 Orange The Bluffs, Eastbluffs, Newport. Comment
  CAS-BOT-BC432275  Lithophragma affine Alice Eastwood; John Thomas Howell 1937-4-24 3927 Orange 2 miles E of San Juan Hot Springs Comment
  RSA735257  Lithophragma affine Wilma Griset 1931-3-15 31 Orange Eagle Rock Comment
  RSA468223  Lithophragma affine subsp. mixtum Albert J. Perkins 1913-4-27 s.n. Orange Trabuco Canon. Comment
  RSA797821  Lithophragma affine subsp. mixtum R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49810 Orange Santa Ana Mountains: Trabuco Canyon Comment
  UC1618102 Image available Lithophragma cymbalaria Donald G. Nelson 1935-7-6 252 Orange San Juan Canyon. North bend of canyon stream Comment
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Apr 11 2009
  IRVC1116  Lobularia maritima C. Duncan 1965-4-4 Orange Newport Beach Comment
  UCR267210  Logfia arizonica Fred M. Roberts, Megan Lulow 2009-3-18 7135 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
  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
  UC729650  Lolium multiflorum Carl B. Wolf 1932-6-13 3714 Orange Fullerton; Rose Drive 53 Comment
  UC729881  Lolium multiflorum Carl B. Wolf 1932-7-7 3858 Orange Bryant Ave., at pump house 1/2 e, Bryant Ranch, ne corner S.E.160 of Sect.30 Los Alamitos Blvd. Comment
  UCR100179  Lolium perenne Scott D. White 1993-3-5 1125 Orange Tustin. Marine Air Corps Air Station: SE of Red Hill Ave and NE of Barranca 15 Comment
  UCR131730  Lolium perenne C. B. Wolf 1932-6-13 03714 Orange Fullerton, Rose Drive 53 Comment
  UCR191470  Lolium perenne A. C. Sanders, Fred M. Roberts 2008-4-8 34735 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, head of Hicks Canyon, S of Santiago Reservoir 351 Comment
  RSA184121  Lolium perenne I. L. Wiggins 1965-10-24 20290 Orange At corner of Yorba Linda and State College Blvds., Fullerton Comment
  RSA0051390  Lolium perenne subsp. multiflorum Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49665 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. Comment
  RSA6065  Lolium perenne subsp. multiflorum C. B. Wolf 1932-6-13 3717 Orange Storm drain at Malvern and Nicholas Aves; Fullerton. 53 Comment
  RSA734678  Lolium perenne subsp. perenne A. C. Sanders, T. B. Salvato 2008-5-13 35332 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
  UCR193390  Lolium perenne subsp. perenne A. C. Sanders, T. B. Salvato 2008-5-13 35332 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
  CAS-BOT-BC271070  Lolium temulentum E. R. Johnson 1932-5-18 3638 Orange East edge of grain field bordering Rancho, Rancho Santa Ana Botanic Garden 198 Comment
  RSA6094  Lolium temulentum E. R. Johnson 1932-5-18 3638 Orange Bordering Rancho Santa Ana Botanic Garden 195 Comment
  RSA530  Lomatium vaginatum J. T. Howell 1927-6-3 22 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  IRVC325  Lonicera japonica B. Aldis 1965-4-25 Orange Slater Ave. Huntington Beach Comment
  RSA753969  Lonicera subspicata A. C. Sanders, Fred M. Roberts 2008-7-16 35858 Orange Lomas de Santiago, upper Hangmans Tree Canyon. 395 Comment
  SD140137  Lonicera subspicata B. Pitzer, S. Hemstreet 1992-5-21 1940 Orange Cleveland National Forest; State Highway 74, 1.0 mile yuphill from the 2000 foot marker, and left ca. 0.1 mile on an old paved road. 760 Comment
  HSC95603  Lotus hamatus D. Atwood 1993-3-27 17693 Orange Corona Del Mar State Park along Newport Coast Drive. 0 Comment
  RSA16339  Lotus heermannii P. C. Everett 1935-6-18 7195 Orange Santa Ana Mts., Main Divide Motorway to Santiago Pk., 1 mi. from Ortega Highway. 732 Comment
  RSA788967  Lotus heermannii Robert F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49578 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74) Comment
  UCR192215  Lotus humistratus A. C. Sanders, Fred M. Roberts 2008-5-6 35254 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, slope SE of road junction along ridge road, near head of Agua Chinon Canyon, 2.4 miles north of El Toro 470 Comment
  RSA754059  Lotus purshianus A. C. Sanders, Fred M. Roberts 2008-7-16 35854 Orange Lomas de Santiago, upper Hangmans Tree Canyon. 395 Comment
  UCR193053  Lotus salsuginosus A. C. Sanders, Mitch Provance 2008-5-20 35406 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago area, Santiago Creek Canyon, c. 3/4 mile below Modjeska Canyon confluence 355 Comment
  RSA699490  Lotus salsuginosus H. Dittmer 1932-5-16 s.n. Orange Road to Irvine Dam Comment
  UCR4073  Lotus scoparius Carole Sims 1965-3-28 s.n. Orange South Coastal Plains, 100 yards from Pacific Coast Highway on Salt Creek Road toward the beach. Between South Laguna and Dana Point 18 Comment
  RSA732275  Lotus scoparius subsp. brevialatus A. C. Sanders 2008-4-29 35121 Orange Lomas de Santiago, western end of Loma Ridge on road to sheriffs training facility, c. 1.5 mi. SW of Santiago Reservoir. 335 Comment
  RSA680915  Lotus strigosus Scott D. White 2003-3-21 8800 Orange Santa Ana Mountain Foothills: Rancho Mission Viejo. East-facing slopes above an unnamed tributary to San Juan Creek. 122 Comment
  UCR192497  Lotus strigosus A. C. Sanders, Fred M. Roberts 2008-3-25 34565 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  UCR4074  Lotus strigosus Carole Sims 1965-3-25 s.n. Orange Santa Ana River Canyon, hillside at 24000 Santa Ana Canyon Road (= State Hwy 91), 150 yards north of hwy; also called Gypsum Canyon. West side of gravel company's trucking road. 221 Comment
  IRVC22013  Lotus strigosus var. strigosus Fred M. Roberts, Gordon Marsh 1985-3-12 1507 Orange mesa west of Ave. Pico and north of El Camino Real, 3.2km SSE Coyote Bluff; 0.6km E Bench Mark 16 (sect. 32), San Clemente 37 Comment
  POM201832  Lotus wrangelianus L. M. Booth 1932-5-19 1073 Orange Newport Bay. Comment
  RSA406363  Lotus wrangelianus M. B. Dunkle 1933-3-5 3086 Orange San Juan Canyon 304 Comment
  UCR109741  Ludwigia peploides T. W. Fisher, R. E. Orth 1963-4-24 s.n. Orange Peninsular Range; Santa Ana Mtns., San Juan Creek off the Ortega Hwy 500 Comment
  RSA35465  Lupinus albifrons var. albifrons Emily M. Bradford 1904-3-6 17 Orange Ocean Park Comment
  RSA699718  Lupinus albifrons var. eminens Keith E. Hoffmaster 1928-5-23 531 Orange San Onofre. Comment
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Nov 19 2013
  RSA681016  Lupinus bicolor Fred M. Roberts, David E. Bramlet 2003-3-13 5576 Orange Donna O'Neill Land Conservancy: Ridge west of Christianitos Canyon, 1.6 km NW Sycamore Gate. 197 Comment
  SEINET7062957 Image available Lupinus bicolor A. G. Vestal 1947-6-12 s.n. Orange About 0.2 mile west of Quail Valley at Menifee Corner and about 6.8 miles east of Lake Elsinore. UTM Zone 11, 476547mE, 3729356mN. (WGS84/NAD83). 491 Comment
  IRVC2288  Lupinus bicolor subsp. umbellatus H. Ellis 1965-3-18 HS 0428 Orange Corona Del Mar Beach Southern Coastal 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
  SEINET10484966  Lupinus bicolor subsp. umbellatus Beauchamp 1972-3-24 BEAUCHAMP 3238 Orange On dry slopes at thirst, san clemente island. 600 Comment
  IRVC22484  Lupinus bicolor subsp. umbellatus Fred M. Roberts 1985-4-24 1656 Orange Laguna Beach: Laguna Canyon along Laguna Canyon Rd., 0.8km N jct. El Toro Rd. Southern Coastal 78 Comment
  IRVC15179  Lupinus concinnus subsp. concinnus K. Conrey 1975-4-20 s.n. Orange Skyline Ranch Southern Coastal Comment
  RSA699288  Lupinus densiflorus Minor Warne 1934-4-21 s.n. Orange Limestone Canyon. Comment
  SBBG103895  Lupinus excubitus B. Pitzer, S. Hemstreet 1992-5-27 1964 Orange USFS Rd 3S04 to Blue Jay Group Cmpgrd, off St Hwy 74, ca. 2 air mi W of El Cariso Cmpgrd 762 Comment
  SD140102  Lupinus excubitus B. Pitzer, S. Hemstreet 1992-5-27 1964 Orange Cleveland National Forest, along road (3S04) to Blue Jay Group Campground, off State Hwy 74 (Ortega Hwy), ca. 2 airmiles west of El Cariso Campground 762 Comment
  UCR237921  Lupinus excubitus Dick Newell, Don Millar 2012-6-5 269 Orange Peninsular Range; Santa Ana Mtns., Loma Ridge East, 0.35 mi. due east of Hicks Haul Rd. 411 Comment
  CAS-BOT-BC216671  Lupinus excubitus subsp. hallii Charles Piper Smith 1946-4-12 46153 Orange Santa Ana Canyon Comment
  CAS-BOT-BC216693  Lupinus excubitus var. excubitus Carl B. Wolf 1930-3-25 1936 Orange Esperanza Siding, Santa Fe RR Comment
  CAS-BOT-BC216694  Lupinus excubitus var. excubitus Carl B. Wolf 1930-3-25 1936 Orange 1 mile W of Esperanza siding of Santa Fe RR 106 Comment
  IRVC17057  Lupinus excubitus var. hallii A. S. Boughey 1969-5-3 430 Orange Black Star Canyon on seaward side near crest. Santa Ana Mountains Comment
  RSA91198  Lupinus excubitus var. hallii F. W. Peirson 1925-4-10 5740 Orange In Silverado Canyon. 610 Comment
  CHSC13495  Lupinus hirsutissimus T. N. Casale 1974-3-11 3 Orange On side of road, ca. 7.3 mi ne of the Mission San Juan Capistrano on Hwy 74. 243 Comment
  RSA598965  Lupinus hirsutissimus Scott D. White 1997-3-28 4837 Orange Santa Ana Mountains: above Modjeska Canyon, proposed water tank site. 427 Comment
  RSA731993  Lupinus hirsutissimus A. C. Sanders, L. Farley, F. M. Roberts, D. E. Bramlet 2008-4-1 34654 Orange Peninsular Range: Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 250 Comment
  RSA699189  Lupinus hirsutissimus R. H. McArthur 1934-3-25 s.n. Orange Limestone Canyon Comment
  RSA413752  Lupinus latifolius subsp. parishii N. C. Cooper 1949-5-1 3949 Orange San Juan Canyon 610 Comment
  UCR177694  Lupinus microcarpus var. microcarpus Fred M. Roberts 2003-5-1 5689 Orange Coastal Plains & Basins; South Coastal Plain region, Rancho Mission Viejo: Donna O'Neill Land Conservancy, Cristianitos Cyn., 0.56 km SSW Gato Gate and 0.21 km west of Cristianitos Rd. 96 Comment
  SEINET3131617  Lupinus sparsiflorus Unknown 1903-4-19 3277 Orange Near San Juan Comment
  UC153540  Lupinus sparsiflorus LeRoy Abrams 1903-4-19 3277 Orange near San Juan; near San Juan Comment
  IRVC21274  Lupinus sparsiflorus subsp. sparsiflorus Fred M. Roberts, Karlin G. Marsh 1984-2-15 1204 Orange Casper's Regional Park: Rancho: Rancho Carrillo Rd., 1.0km NE Visitor Center; 3.0km SW Lucas Survey Mark, Santa Ana Mountains 150 Comment
  IRVC2302  Lupinus sparsiflorus subsp. sparsiflorus B. Newman 1965-4-14 s.n. Orange Dana Point. Southern Coastal Comment
  SEINET10490976  Lupinus sparsiflorus subsp. sparsiflorus LeRoy R. Abrams 1903-4-19 Abrams 3277 Orange Sandy soil along railroad, near san juan. Comment
  IRVC2343  Lupinus succulentus Tony Price 1965-4-17 HS 0414 Orange Black Star Canyon. Santa Ana Mountains Comment
  RSA747603  Lupinus succulentus Fred M. Roberts 2000-4-27 5304 Orange Lomas de Santiago: Lomas Ridge, Agua Chinon Wash, 1.5 km S Bolero Spr. and 2.1 km WSW Bolero Lookout. 281 Comment
  UCR191781  Lupinus succulentus A. C. Sanders, Fred M. Roberts 2008-3-25 34573 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
  IRVC2359  Lupinus truncatus C. Weir 1965-5-9 s.n. Orange Newport Beach, [Newport] Back Bay. Southern Coastal Comment
  SD143894  Lupinus truncatus Scott D. White 1997-3-28 4851 Orange Santas Ana Mountains; above Modjeska Canyon. 424 Comment
  UCR192498  Lupinus truncatus A. C. Sanders, Fred M. Roberts 2008-3-25 34566 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  CAS-BOT-BC516184  Lycium californicum R. E. Riefner, Jr. 2012-11-24 12 -558 Orange City of San Clemente, Presidio Ave., ca. 0.2 mi S of Ave. Pico 34 Comment
  UCR222626  Lycium californicum T. B. Salvato 2010-10-27 5101 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
  SBBG128745  Lycium californicum R. E. Riefner Jr. 2012-11-24 12 -558 Orange City of San Clemente, Presidio Ave ca. 0.2 mi S of Ave Pico 34 Comment
  RSA700255  Lycopersicon esculentum Fred M. Roberts 2003-7-8 5959 Orange Coastal Plains and Basins; Los Angeles Basin region; Orange Park Acres, along Santiago Creek, 0.5 km E Cannon Road and 0.3 km n Santiago Canyon Road. 117 Comment
  JEPS63273  Lycopus americanus John Thomas Howell 1927-9-24 3120 Orange Rancho Santa Ana R. bottom Rancho Santa Ana; Rancho Santa Ana R., Rancho Santa Ana 152 Comment
  RSA0014845  Lythrum californicum Scott D. White 1997-6-12 5315 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
  UCD169742  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 Springs. 205 Comment
  RSA0014843  Lythrum californicum F. W. Peirson 1924-5-31 4652 Orange Laguna Canyon, near Laguna Beach. 107 Comment
  RSA0014849  Lythrum californicum L. M. Booth 1932-7-19 1282 Orange Bolsas Marsh. Comment
  CAS-BOT-BC206252  Malacothamnus fasciculatus C. B. Wolf 1931-7-25 1166 Orange Along the road at north side of the Pear Orchard, Rancho Santa Ana, Santa Ana Can. 121 Comment
  POM124505  Malacothamnus fasciculatus L. R. Abrams 1918-5-26 s.n. Orange Near Laguna Beach Comment
  RSA433316  Malacothamnus fasciculatus Albert J. Perkins 1923-6-28 s.n. Orange Laguna Cliffs Comment
  RSA751428  Malacothamnus fasciculatus A. C. Sanders, Fred M. Roberts 2008-7-3 35677 Orange Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor 365 Comment
  UCR193784  Malacothamnus fasciculatus A. C. Sanders, Fred M. Roberts 2008-7-3 35677 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor 415 Comment
  OBI12363  Malacothamnus fasciculatus var. laxiflorus Robert F. Hoover 1968-6-10 11172 Orange Laguna Beach Comment
  CAS-BOT-BC347890  Malacothrix saxatilis var. tenuifolia John Thomas Howell 1927-6-9 2463 Orange Southern Puente Hills, in the Santa Ana Canon [Canyon] 152 Comment
  POM6233  Malacothrix saxatilis var. tenuifolia D. L. Crawford 740 Orange Aliso Canyon Comment
  RSA789584  Malacothrix saxatilis var. tenuifolia R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49656 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. Comment
  UC582778  Malacothrix saxatilis var. tenuifolia P. A. Munz 1936-6-20 14177 Orange road at La Vida Springs Carbon Canyon Comment
  UCSB50647  Malacothrix saxatilis var. tenuifolia Roberts, Fred 1982-6-3 Orange South Laguna: Niguel Hill, at end of Sea Island Dr., 1.9km SE Aliso Peak 210 Comment
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Dec 12 2018
  CAS-BOT-BC347888  Malacothrix saxatilis var. tenuifolia P. A. Munz 1936-6-30 14177 Orange Road at La Vida Springs, Carbon Canyon Comment
  SD236159  Malosma laurina A. C. Sanders, Fred M. Roberts 2008-6-17 35462 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago, Loma Ridge on Hicks Canyon Haul Road, c. mideway between Foothill Transportation Corridor and Santiago Cyn. Rd. 334 Comment
  UCD116863  Malosma laurina Sue A. Thompson; John E. Rawlins 1988-8-27 5257 Orange Cleveland National Forest: 3.8 mi E of San Juan Hot Springs on CA 74. 370 Comment
  UCR228797  Malosma laurina Dick Newell, Don Millar 2011-5-3 138 Orange Coastal Plains, San Joaquin Hills, Laguna Canyon Wilderness Park, Willow Trail 160 Comment
  UCSB48029  Malosma laurina Roberts, Fred 1980-7-7 Orange Santa Ana Mtns.; San Juan Canyon, Calif. Rte. 74; 2.2 km. ENE San Juan Guard Station; 0.6 km W Bench Mark 1100 305 Comment
  UCR199729  Malva nicaeensis Scott D. White, Justin Wood 2008-4-22 11907 Orange Chino Hills, Telegraph Canyon Road, E of Carbon Canyon Regional Park 335 Comment
  UCR193003  Malva parviflora A. C. Sanders, Fred M. Roberts 2008-6-17 35456 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Hicks Canyon Haul Road 0.5 mi. east of the Foothill Transportation Corridor 244 Comment
  RSA0031758  Malva parviflora Robert F. Thorne 1977-11-21 50816 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs Comment
  RSA471  Malva parviflora J. T. Howell 1928-3-17 870 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA735967  Malva pseudolavatera Scott D. White, Justin M. Wood 2008-4-22 11907 Orange Chino Hills: Telegraph Canyon Road, E of Carbon Canyon Regional Park. 152 Comment
  UCR16327  Malvella leprosa N. J. Moriarty 1973-5-20 - 2 Orange Huntington Beach, 0.7 mi. north of Golden West Blvd. on west side of Pacific Coast Highway Comment
  SD143935  Marah macrocarpa Scott D. White 1996-12-20 4633 Orange Santa Ana Mtns above Modjeska Canyon. Proposed water tank site. 424 Comment
  UC484230  Marah macrocarpa C. B. Wolf 1931-2-9 1819 Orange between Horseshoe Bend and Esperanza (on R.R. fence); Santa Ana Canyon 137 Comment
  UCR223414  Marah macrocarpa Dick Newell, Don Millar 2011-2-15 063 Orange South Coast, San Joaquin Hills, Laguna Wilderness Park, along Stagecoach Trail 131 Comment
  UCSB47970  Marah macrocarpa Roberts, Jr., Fred 1980-2-17 Orange Dana bluffs along Scenic Drive Road, northwest of and above Dana Point Harbor, Dana Point 58 Comment
  RSA652419  Marah macrocarpa Harvey Kennedy 1949-2-20 s.n. Orange Newport Beach, back bay. 9 Comment
  UCSB41789  Marrubium vulgare Marshall, Lawrence 1967-11-18 Orange West side of Peters canyon reservoir near the dam 304 Comment
  RSA665955  Marsilea vestita Fred M. Roberts, Michelle Lee, Kristen Szabo 2001-4-13 5426 Orange Rancho Mission Viejo: South of San Juan Creek, 0.6km WNW Median Rancho Survey Marker., PCR Vernal Pool 2. 183 Comment
  RSA202176  Matricaria occidentalis L. M. Booth 1932-5-12 1011 Orange Newport Bay. Comment
  UCSB56677  Matthiola incana Roberts, Jr., Fred 1984-2-4 Orange South Laguna; Aliso Canyon near mouth, 0.7 km. WNW Aliso Peak 15 Comment
  CDA6380  Mazus japonicus W. Humphrey 1973-7-19 Orange 7231 Irvine Boulevard, Santa Ana. 0 Comment
  POM7620  Meconella denticulata P. A. Munz, R. D. Harwood 1920-4-25 6719 Orange Shady hillside by road in Silverado Canyon, Santa Ana Mts. 549 Comment
  IRVC2381  Medicago polymorpha L. Aldis 1965-3-1 s.n. Orange Costa Mesa; Senate St. Southern Coastal Comment
  RSA731980  Medicago polymorpha A. C. Sanders 2008-4-1 34657 Orange Peninsular Range: Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 250 Comment
  UCR103166  Medicago polymorpha Scott D. White 1997-3-26 4809 Orange Univ. of Calif. Irvine Campus, east of main campus at site of proposed student recreation center, east of main campus, between California Avenue and Culver Drive. 40 Comment
  UCR192459  Medicago rigidula A. C. Sanders, Fred M. Roberts 2008-3-25 34527 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  UCR230879  Melaleuca nesophila R. E. Riefner Jr. 2011-7-1 11- 82 Orange South Coast, city of Newport Beach, beach area west of the end of Cameo Shores Road, south c. 1 mi from Poppy Avenue 2 Comment
  RSA722086  Melaleuca nesophila R. E. Riefner Jr. 2007-3-18 7 -151 Orange City of Newport Beach, N shore of Newport Bay, North Star Beach, general vicinity of North Star Ln. and Polaris Dr. 9 Comment
  RSA639694  Melia azedarach Scott D. White, Pam DeVries 1998-12-10 s.n. Orange Brea; Oil field south of Tonner Canyon and north of Lambert rd. Comment
  RSA74  Melica imperfecta J. T. Howell 1928-3-17 877 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA743516  Melica imperfecta Fred M. Roberts 2008-4-9 6883 Orange Dana Point: Dana Point Headlands, CNLM Preserve near Outlook 2, 0.7 km W Marine Institute (Dana Point Harbor). 52 Comment
  UCR138332  Melica imperfecta R. E. Riefner Jr., Adrian Wolf 2000-6-1 20- 460 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
  POM7085  Melica imperfecta var. flexuosa P. A. Munz, L. T. Street, G. Williams 1919-5-3 2659 Orange Santa Ana River Canyon. Comment
  RSA657750  Melilotus albus Ken Greby 1985-5-17 39 Orange behind PG and E substation located 2 km. SE from Laguna Canyon Rd., on El Toro Rd., adjacent to Leisure World. Comment
  UCR173932  Melilotus albus A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33004 Orange Peninsular Range; Santa Ana Mtns., San Juan Canyon, from Lower San Juan Picnic Area to c. 1 mile downstream, parallel to Hwy 74 and near Riverside Co. line 396 Comment
  UCR223421  Melilotus albus Dick Newell, Don Millar 2011-3-1 067 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Hicks Canyon Haul Road, above Jeffrey Rd. and below Hwy 241 crossing 175 Comment
  RSA4766  Melilotus indicus James Snow 1932-1 s.n. Orange Bryant Ranch, near Long Beach. Comment
  RSA743458  Melilotus indicus Fred M. Roberts 2008-3-19 6786 Orange Dana Point: Dana Point Headlands, CNLM Preserve, 0.8km W Marine Institute, Dana Point Harbor. 60 Comment
  UCR237823  Melilotus indicus Mark A. Elvin 2003-2-2 2292 Orange South Coast, San Joaquin Marsh, UCI campus SSE of intersection of Jamboree Blvd. and Campus Dr. 2 Comment
  POM312088  Melilotus indicus Jane Shelton 1963-5-3 22 Orange El Morro Beach, Laguna, Alt 5ft 2 Comment
  UCR235510  Melinis repens R. E. Riefner Jr. 2011-8-16 11- 98 Orange South Coast, Newport Beach, Orange County Parks and Recreation lands, along Newport Coast Drive, between Vista Ridge Road and Alteza Road 281 Comment
  RSA539391  Mentzelia micrantha Fred M. Roberts, Carol A. Roberts 1988-6-9 4072 Orange Santa Ana Mountains: Main Divide Truck Trail, Modjeska Peak, west slope, 0.5 km NNW summit. 1417 Comment
  RSA734686  Mentzelia micrantha A. C. Sanders, T. B. Salvato 2008-5-13 35354 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
  RSA402610  Mesembryanthemum crystallinum M. B. Dunkle 1933-4-9 3284 Orange Dana Point Comment
  RSA696448  Mesembryanthemum crystallinum Minor Warne 1934-5-6 s.n. Orange Bluffs Corona Del Mar Comment
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Jun 24 2009
  CAS-BOT-BC435276  Mesembryanthemum nodiflorum Carl B. Wolf 1927-7-23 663 Orange Juste no. of San Clemente Comment
  RSA752848  Mesembryanthemum nodiflorum Fred M. Roberts 2009-4-21 7156 Orange Dana Point Headlands: southern cliffs, 0.7 km W Marine Institute at Dana Point Harbor. CNLM Dana Point Preserve. 3 Comment
  SEINET3155128  Mesembryanthemum nodiflorum L. Abrams 1903-4-20 3280 Orange Near San Juan Comment
  POM201702  Mesembryanthemum nodiflorum L. M. Booth 1932-8-5 s.n. Orange West Newport Beach. Comment
  RSA65535  Mesembryanthemum nodiflorum F. W. Peirson 1920-6-25 2209 Orange 5 miles south of San Juan Capistrano. Comment
  RSA263682  Micropus californicus E. W. Lathrop 1966-4-10 6154 Orange Silverado Canyon Comment
  RSA708226  Microseris douglasii subsp. platycarpha Fred M. Roberts, Robert L. Allen, Chris M. Barnhill, Carol A. Roberts 2005-4-10 6167 Orange Costa Mesa: Fairview Park, west of north end of Canyon Drive, c.a. 0.2km WNW Marison Special Education Center (Canyon Sch. on topos). 24 Comment
  RSA598918  Microseris lindleyi Scott D. White 1997-3-28 4846 Orange Above Modjeska Canyon, proposed water tank site 425 Comment
  RSA599647  Microseris lindleyi Fred M. Roberts 1995-4-21 4928 Orange Irvine: San Joaquin Hills, Quail Hill area near end of San Canyon Road, 2.9 km ENE French Hill. 49 Comment
  JEPS10278  Mimulus Lawrence M. Booth 1932-7-27 1322 Orange Newport Bay Comment
  UC1424855  Mimulus Bennett, Dunn and Dziekanowski 1976-7-21 439 Orange Pacific Island Estates condominium Laguna Hills Comment
  UCR106282  Mimulus aurantiacus var. aurantiacus B. G. Pitzer, M. Georgiady 1997-4-5 3077 Orange San Joaquin Hills, Crystal Cove State Park, along 'No Dogs' Trail (from parking area, along western bottom edge of ridge between Muddy Canyon & Moro Canyon), to just below intersection with 'Poles' trail 152 Comment
  RSA131398  Mimulus aurantiacus var. pubescens E. K. Balls 1958-6-27 23279 Orange Road to Santiago Peak from Silverado Canyon, 3.8 mi. from gate. 976 Comment
  UCSB56675  Mimulus aurantiacus var. pubescens Roberts, Fred 1984-2-4 Orange Laguna Beach; South Laguna; Temple Hill; Upper Hobo Canyon; 1.2km NNE Goff Island; 2.4 km S Top of the World School 200 Comment
  LA209127  Mimulus aurantiacus var. puniceus Joseph Andorfer Ewan; 1932-7-28 7692 Orange Corona del Mar 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
  RSA588893  Mimulus aurantiacus var. puniceus Fred M. Roberts, Carol A. Roberts 1990-5-31 4661 Orange Costa Mesa; Fairview Park, Just west of end of Canyon Drive, 0.1 km W Canyon School. 24 Comment
  LA209132  Mimulus aurantiacus var. puniceus W. E. Pequegnat; 1938-4-16 sn Orange Santa Ana Mountains, Indian Truck Trail 822 Comment
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Apr 10 2016
  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
  RSA542496  Mimulus cardinalis Bernard Jaroslow 1989-7-4 B- 26 Orange Santiago Canyon: near upper Santiago Creek. Comment
  RSA726130  Mimulus cardinalis A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33017 Orange Peninsular Range; Santa Ana Mtns.: San Juan Canyon, from Lower San Juan Picnic Area to ca. 1 mile downstream, parallel to Hwy 74 and near Riverside Co. line 366 Comment
  RSA435530  Mimulus cardinalis Albert J. Perkins 1912-09 s.n. Orange Bank of stream East Orange Co. Comment
  UCR230839  Mimulus clevelandii Dick Newell, Judy Booth 2011-6-19 181 Orange Peninsular Range; Santa Ana Mtns., Maple Springs Rd., Cleveland National Forest, above Santiago Canyon 1086 Comment
  JEPS87315  Mimulus clevelandii David M. Thompson 1992-5-16 1065 Orange Santa Ana Mountains, 3.9 mi N and W of Highway 74 along USFS Road 3S04 (the N side of paved loop allowing access to the main Divide Road). Comment
  UCSB47991  Mimulus floribundus Roberts, Fred 1980-7-7 Orange Santa Ana Mtns; San Juan Cyn; Hwy 74; 2.3km ENE San Juan Guard Station; 0.4km W Bench Mark 1100 315 Comment
  UCR16027  Mimulus guttatus Steve Kulju 1974-5-27 s.n. Orange Peninsular Range; Santa Ana Mtns, San Juan Canyon, 16 mi SW of Lake Elsinore on State Hwy 74 488 Comment
  RSA30448  Mirabilis linearis E. L. Paddock 1942-8-12 11295 Orange Stern Ranch, Yorba Linda, John Manassero Lease Comment
  CSUSB1384  Modiola caroliniana John N. Bullock 1970-4-3 Orange Found as weed in residential district, Boxwood Street, Anaheim (city). 45 Comment
  RSA38698  Modiola caroliniana E. L. Paddock 1943-9-10 s.n. Orange 1.5 miles NE of Brea Comment
  SBBG93266  Mollugo verticillata D. G. Nelson 1936-7-26 442 Orange mesa N of Newport Beach, Costa Mesa Comment
  UC1543025  Mollugo verticillata Donald G. Nelson 1936-7-26 442 Orange n of Newport Beach (Costa Mesa); Costa Mesa Comment
  CHSC35479  Monanthochloe littoralis Thomas Eakle 1971-5-28 164 Orange Ca. 2 mi. NE of Newport at Newport Bay saltmarsh. 0 Comment
  RSA0059066  Monanthochloe littoralis CNPS Accuracy Assessment Team 2014-7-8 9567 .1 Orange Upper Newport Bay Nature Reserve. Comment
  SEINET9297241  Monardella hypoleuca Unknown 2008-7-16 35845 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago, Dripping Springs off Limestone Canyon, c. 7.5 mi ESE of Tustin. Spring falling from 30 ft. cliffs forming a shaded bowl, with large pool at foot; forest of Quercus agrifolia and Platanus racemosa, with Sambucus mexicana, Rubus ursinus, Solanum douglasii, Heteromeles arbutifolia, RIbes malvaceum, R. speciosum, Rosa californica, Keckiella cordifolia, etc. Locally common rhizomatous perennial on dry slop in open brush, c. 100 m below the spring, between access road and stream. Comment
  RSA0005454  Monardella hypoleuca P. A. Munz 1923-9-7 7742 Orange Trail Trabuco Canyon to Santago Peak 915 Comment
  CAS-BOT-BC221717  Monardella hypoleuca subsp. intermedia A. C. Sanders; Fred M. Roberts 2008-7-3 35683 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation corridor 415 Comment
  SD239801  Monardella hypoleuca subsp. intermedia A. C. Sanders, Mark A. Elvin 2005-9-2 31613 Orange Santa Ana Mountains: near head of Holy Jim Canyon, a major tributary of Trabuco Canyon, along the trail in the switchbacks, below the towers on Santiago Peak (Santiago Peak 7.5'Q) 997 Comment
  UCR158808  Monardella hypoleuca subsp. intermedia A. C. Sanders, Mark A. Elvin 2005-9-2 31607 Orange Santa Ana Mtns., upper Holy Jim Canyon, a major tributary of Trabuco Canyon, along the trail in the switchbacks 820 Comment
  UCR17859  Monardella hypoleuca subsp. intermedia A. C. Sanders 1976-3-6 00407 Orange Peninsular Range; Santa Ana Mtns., Black Star Canyon 549 Comment
  RSA131404  Monardella lanceolata var. lanceolata E. K. Balls 1958-6-27 23285 Orange Santa Ana Mountains: 8 miles SE of Silverado (Gate), Silverado canyon. Comment
  RSA592097  Monardella macrantha subsp. hallii R. E. Riefner Jr. 1993-6-28 93 -143 Orange W slope Modjeska Peak along main jeep trail. 1300 Comment
  UCR238208  Monardella viminea Mark A. Elvin 2002-7-13 s.n. Orange Southern Coast, Irvine; UCI Arboretum 15 Comment
  UCR24029  Muhlenbergia asperifolia John C. Roos 1936-10-9 2508 Orange Olive. On the canal bank Comment
  UCSB56503  Muhlenbergia asperifolia Marsh, G.; Marsh, K. 1977-11-21 Orange San Juan Hot Springs; Santa Ana Mtns Comment
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Sep 17 2007
  CAS-BOT-BC275292  Muhlenbergia microsperma Helen D. Geis 1902-1-1 556 Orange Unspecified Comment
  POM193518  Muhlenbergia microsperma J. B. Feudge 1929-4-7 2035 Orange Rancho Santa Ana, N.E. Orange County. 305 Comment
  RSA587869  Muhlenbergia microsperma Fred M. Roberts, Carol A. Roberts 1990-5-16 4631 Orange Santa Ana Mtns: Small canyon along SE side of Irvine Mesa, 3.5 km N Bolero Lookout 396 Comment
  OBI1297  Myriopteris newberryi Ilk 1963-9-17 1095 Orange Laguna Canyon, Laguna Canyon, rock outcrops north of road, ca. 1/2 mile north of El Toro Rd. turnoff; 500 Comment
  RSA598968  Nassella lepida Scott D. White 1997-3-28 4839 Orange Above Modjeska Canyon, proposed water tank site 425 Comment
  RSA751328  Nassella lepida A. C. Sanders, Fred M. Roberts 2008-5-6 35264 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
  RSA682758  Nassella pulchra Scott D. White, Amanda Duchardt 2003-3-27 8852 Orange Canyon bottom and west facing slopes above Canada Gobernadora. 91 Comment
  RSA732051  Nassella pulchra A. C. Sanders, Fred M. Roberts 2008-4-8 34741 Orange Peninsular Range: Lomas de Santiago, Loma Ridge, head of Hicks Canyon. S of Santiago Reservoir. 351 Comment
  UCD87647  Nassella pulchra R. M. L. 1942-4-16 11 Orange 8 miles east of Santa Ana. El Toro Ranch. Comment
  IRVC29691  Nasturtium Barry S. Nerhus, Mark A. Elvin 2006-11-4 3 Orange Huntington Beach; 1.5 km SW of Wintersburg, SW of jct Slater and Goldenwest; Shipley Nature Center. Southern Coastal 1 Comment
  RSA330  Nasturtium officinale J. T. Howell 1927-7-15 404 Orange Santa Ana River, Rancho Santa Ana [Botanic Garden] 152 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
  RSA703641  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
  RSA759149  Navarretia atractyloides Robt. Allen, D. Taylor 2008-7-19 s.n. Orange Along North Main Divide Road, 0.2 road miles S of junction with Bedford Rd, 3.5 road miles N of junction with Maple Springs Road, 0.84 air miles WNW of Bald Peak. Labeled on USGS Topo map as Water Tank, near BM 3702. 1142 Comment
  UCR207191  Nemacaulis denudata var. denudata O. F. Clarke 2003-5-7 s.n. Orange South Coast, Least Tern Reserve, just north of the mouth of the Santa Ana River, Huntington Beach 4 Comment
  RSA704834  Nemophila menziesii Francis Battey s.n. Orange Laguna Hills. Comment
  SEINET3479039  Nemophila menziesii W. P. Vestal, A. G. Vestal 1955-3-24 Orange El Toro, El Toro, about 5 miles east Comment
  UC2042000  Nephrolepis cordifolia R. E. Riefner Jr. 2011-8-25 11 -120 Orange City of Laguna Beach, Aliso Beach County Park, bluff ca. 0.15 mi SE of Aliso Way, NW ca 0.25 mi of West St. Comment
  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
  IRVC154  Nephrolepis exaltata var. bostoniensis L. Burns 1965-5-1 s.n. Orange Corona del Mar; Cameo Shores. Southern Coastal Comment
  HSC21273  Nicotiana glauca C. L. Hitchcock 1966-3-15 24144 Orange Stearns Lease, 1.5 mi. E of Brea. Comment
  UCR217290  Nicotiana glauca Mark A. Elvin 2003-3-30 2394 Orange South Coast, north side of UC Irvine Preserve, between core of UCI campus (E Peltason Dr.) and Hwy 73 69 Comment
  RSA69942  Nitrophila occidentalis Joseph A. Ewan 1931-7-31 4762 Orange Smeltzer. 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
  RSA642703  Nolina cismontana R. E. Riefner 2000-3-19 20 -137 Orange NCCP North Ranch Policy Plan Area. Along dirt road running N and parallel to Black Star Cy. Road. 396 Comment
  RSA704388  Nolina cismontana James C. Dice 1985-5-23 594 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
  RSA734216  Nolina parryi Keith E. Hoffmaster 1936-5-3 726 Orange Live Oak Canyon, Santa Ana Mts Comment
  UC1134648  Nolina parryi A. E. Wieslander 1931-4-10 180 Orange w Sierra Peak; Corona Quadrangle 365 Comment
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Nov 26 2007
  JEPS89240  Nuttallanthus texanus Rimo Bacigalupi and P. C. Hutchison 1962-3-16 8232 Orange 2 mi n of Doheny Beach State Park (along U.S. 101); U.S. 101 Comment
  RSA98320  Oenanthe sarmentosa F. W. Peirson 1924-2-9 4525 Orange Between Wintersberg and the sea. Comment
  RSA752094  Oenothera contorta Norland 1929-3-3 19 Orange Cypress Comment
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Jun 24 2020
  RSA733637  Oenothera dentata L. C. Hull 1934-4-8 s.n. Orange Laguna Hills. Comment
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Jun 24 2020
  RSA733638  Oenothera dentata Minor Warne 1934-03 s.n. Orange Near El Toro Comment
  UCR222862  Oenothera elata T. B. Salvato 2010-10-27 5130 Orange South Coast, Dana Point Headlands, Hilltop Park, north of Scenic Dr. and west of Green Lantern St., overlooking Dana Point Harbor 84 Comment
  UCR197687  Olea europaea A. C. Sanders, Fred M. Roberts 2008-9-18 36081 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge 330 Comment
  CAS-BOT-BC427454  Oligomeris linifolia Bradshaw 1902-1-1 s.n. Orange Arch Beach Comment
  CAS-BOT-BC427455  Oligomeris linifolia H. L. Mason 1926-4-25 2905 Orange Five miles south of Laguna Beach Comment
  RSA399174  Oligomeris linifolia Unspecified 1915-01 s.n. Orange Redondo. 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
  POM285338  Opuntia X occidentalis Lyman Benson 1955-10-17 15599 Orange Moulton Ranch just west of the summit east of Laguna Beach. 152 Comment
  RSA288746  Opuntia X occidentalis M. G. McLeod, Walkington, Pinkava, G. Smith 1970-11-7 439 Orange 2 mi SW of Cook's Corner, Santa Ana Mountains. Comment
  POM285345A  Opuntia littoralis Lyman Benson 1955-10-17 15600 Orange Moulton Ranch just west of the summit east of Laguna Beach. 152 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
  UCR223965  Opuntia littoralis Fred M. Roberts 2008-10-27 7127 Orange South Coast, Dana Point, Dana Point Headlands, CNLM Preserve, near Strands Road Gate, 0.8 km west northwest of Marine Institute, Dana Point Harbor 65 Comment
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Nov 20 2018
  CAS-BOT-BC56866  Opuntia oricola B. D. Stark 1933-1-21 4520 Orange Field redacted by CAS, contact the data manager for more information 60 Comment
  CAS-BOT-BC56867  Opuntia oricola L. R. Abrams 1917-6-23 6558 Orange Field redacted by CAS, contact the data manager for more information Comment
  UCR217283  Opuntia oricola Mark A. Elvin 2003-1-26 2234 Orange South Coast, Irvine, UC Irvine Open Space Preserve, NE side, between core of UCI campus (E Peltason Dr.) and Hwy 73 69 Comment
  IRVC14194  Opuntia prolifera J. W. Johnson 1976-8-11 Orange Irvine; UCI, 300ft. south of Medical Center; on heavy clay soil in grazing climax of mediterranean grasses. Destroyed by construction. Southern Coastal Comment
  POM317064  Opuntia vaseyi David Walkington 1961-9-4 9 Orange South of Skyline Dr. east of Acacia Dr., Fullerton. 107 Comment
  POM317768  Opuntia vaseyi David Walkington 1963-5-17 169 Orange Above intersection of Dana Cove Park rd. and Green Lantern Dr., continuous slope with Dana Cove Park Rd. Dana Point. 61 Comment
  RSA6667  Opuntia vaseyi B. D. Stark 1933-1-17 4512 Orange 5 miles north of Laguna Beach on road to Irvine. 152 Comment
  RSA407957  Orthocarpus purpurascens M. B. Dunkle 1935-2-10 4337 Orange Laguna Creek; Coastal Southern California. 61 Comment
  UCSB48382  Osmadenia tenella Roberts, Jr., Fred 1982-5-22 Orange Laguna Niguel; Niguel Hill, near end of Pacific Island Road, 1.6 km. ENE Aliso Peak 295 Comment
  RSA458994  Osmorhiza brachypoda Albert J. Perkins 1914-6-14 s.n. Orange Santiago Peak. Comment
  UC1143153  Oxalis albicans subsp. californica A. Lewis 1934-2-1 262 Orange Santa Ana Canyon Corona quad 152 Comment
  RSA731798  Oxalis corniculata Fred M. Roberts, Sandy Leatherman 2007-11-9 6639 Orange Santa Ana Mtns.: San Juan Canyon, Lower San Juan Picnic Ground. 408 Comment
  UCD111026  Oxalis pes-caprae Gordon Pilone 1961-3-14 111 Orange Little Corona Del Mar. 3 Comment
  UCR241053  Oxalis rubra Robert DeRuff 2010-3-16 379 A Orange South Coast, Upper Newport Bay, below Eastbluff North on bay side of Back Bay Dr. 4 Comment
  UC718383  Oxytheca trilobata P. C. Everett 1935-6-19 Orange 1.5 mi below summit, e slope Santiago Peak (main divide motorway); Santa Ana Mts. 1310 Comment
  CAS-BOT-BC121211  Paeonia californica J. T. Howell 1927-6-6 2425 Orange Santa Ana River bottom, Santa Ana Canyon 152 Comment
  RSA434261  Paeonia californica M. B. Dunkle 1933-3-5 3095 Orange San Juan Canyon, Comment
  RSA700031  Paeonia californica Minor Warne 1934-03 s.n. Orange Gypsum canyon 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
  CAS-BOT-BC438784  Pallenis maritima R. E. Riefner, Jr. 2012-11-14 12 -551 Orange City of Newport Beach, S. of Poppy St. / Ocean Blvd., coastal bluff near Little Corona Beach rocky intertidal area. 5 Comment
  UC2014867  Pallenis maritima R. E. Riefner Jr. 2012-5-25 12 -393 Orange City of Dana Point, rocky shore between Mussel Cove and Salt Creek Beach Comment
  UCSB52890  Panicum capillare Roberts, Fred 1984-10-18 Orange Santa Ana Mtns.: San Juan Canyon, 2.5 km. ENE San Juan Guard Station; 4.0 km. WNW Sitton Peak 310 Comment
  RSA594891  Papaver californicum Fred M. Roberts, Sandy Leatherman, B. Leatherman 1994-4-24 4904 Orange Santa Ana Mountains: San Juan Canyon, south side of CA route 74, 1.2 kilometers SW Lower San Juan Picnic Ground. 390 Comment
  RSA717519  Parietaria judaica R. E. Riefner 2006-7-28 6 -325 Orange City of Huntington Beach, Huntington Central Park at Goldenwest St. 4 Comment
  IRVC19396  Parkinsonia aculeata R. L. Allen 1983-2-12 A624 Orange Fullerton; Hillcrest Park, slope bordering E Valley View Drive. Southern Coastal Comment
  IRVC29791  Paspalum dilatatum Mark A. Elvin, Dean Kelch 2006-12-9 5317 Orange Irvine; San Diego Creek, edge of San Joaquin Marsh, beside University Dr., between Campus Dr. and Hwy 73. Southern Coastal 3 Comment
  POM1056  Paspalum distichum Daniel J. Crawford 1916-7-26 750 Orange Aliso Canyon Comment
  POM48017  Paspalum distichum I. M. Johnston 1924-8-29 s.n. Orange 1 mi. N of Los Alamitos. Comment
  RSA696379  Paspalum distichum Keith E. Hoffmaster 1933-10-29 s.n. Orange Near Tustin Comment
  RSA697733  Paspalum distichum Anonymous 1930-1 2 Orange Bed of Santa Ana river west of Town. Moist sand 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
  UC455151  Paspalum distichum I. J. Condit 1908-7-21 Orange Los Alamitos Comment
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Nov 20 2010
  UC2061655  Paspalum pubiflorum R. E. Riefner Jr. 2007-12-2 07 -503 Orange City of Yorba Linda, Santa Ana Canyon, N bank of Santa Ana River, E of weir Canyon Rd., vicinity of La Palma Ave. and Mercado del Rio. Comment
  OBI74913  Paspalum vaginatum R. E. Riefner, Jr. and K. Campbell, K. Campbell 2008-8-31 08 -267 Orange City of Irvine, tidal portion of San Diego crk, immediately E of Hwy 73 overpass 1 Comment
  RSA733048  Paspalum vaginatum R. E. Riefner 2005-7-9 05 -543 Orange City of Mision Viejo, Oso Creek, ca. 0.5 mi N of Paseo de Colinas on Camino Capistrano 86 Comment
  RSA733137  Paspalum vaginatum R. E. Riefner 2008-1-13 8 -9 Orange City of Newport Beach, San Diego Creek near Hwy. 73 overpass, E of Jamboree Rd. 6 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
  RSA766061  Paspalum vaginatum R. E. Riefner Jr. 2008-7-29 08 -257 Orange City of Dana Point, near Ritz-Carlton Hotel, Salt Creek Beach area. 0 Comment
  SBBG133655  Paspalum vaginatum R. E. Riefner Jr. 2008-8-31 08 -267 Orange tidal portion of San Diego Crk, immediately E of Hwy 73 overpass; Irvine 0 Comment
  SD218260  Paspalum vaginatum R. E. Riefner Jr., K. Campbell 2008-8-31 08 267 Orange City of Irvine, tidal portion of San Diego Creek, immediately easst of Highway 73 overpass. 0 Comment
  UCR204282  Paspalum vaginatum R. E. Riefner Jr. 2008-1-13 08- 04 Orange South Coast, city of Laguna Beach, Aliso Creek at Pacific Coast Hwy 9 Comment
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Jul 30 2010
  UCR204899  Paspalum vaginatum R. E. Riefner Jr. 2003-10-14 03- 456 Orange South Coast, city of San Juan Capistrano, Trabuco Creek, south side of Del Obispo Street at Paseo Adelento Street 26 Comment
  RSA737240  Paspalum virgatum R. E. Riefner, K. Campbell 2008-8-31 08 -267 Orange Orange County: city of Irvine, San Diego Creek, E side of Hwy 73 overpass, alt 2ft. 1 Comment
  RSA680561  Pectocarya linearis Scott D. White 2003-3-21 8815 Orange Santa Ana Mountain Foothills: Rancho Mission Viejo. East-facing slopes above an unnamed tributary to San Juan Creek. 122 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
  CAS-BOT-BC67734  Pellaea andromedifolia John Thomas Howell 1927-6-17 2551 Orange Hills on north side of Santa Ana Canyon 152 Comment
  RSA698462  Pellaea andromedifolia R. H. McArthur 1934-4-28 s.n. Orange Ladd Canyon Comment
  UCR113460  Pellaea mucronata subsp. mucronata R. E. Riefner Jr. 2000-8-8 20- 719 Orange Peninsular Range, Santa Ana Mountains, North Ranch Policy Plan Area, NE property, E slope of upper Fremont Canyon, south of Donaldson Ranch and south of powerline/ National Forest boundary 454 Comment
  IRVC20364  Pellaea mucronata var. mucronata Fred M. Roberts, D. A. Roberts 1983-3-22 935 Orange San Juan Canyon, above Hwy 74, 2.7km ENE San Juan Guard Sta.; 3.6km SSW Sugar Loaf Pk., Santa Ana Mountains 407 Comment
  UC1543033  Pellaea mucronata var. mucronata Donald G. Nelson 1935-4-6 241 Orange e of San Juan Capistrano (and just s of boundary of Cleveland Nat'l Forest, canyon with stream branching n from summer ranger station on main hwy); San Juan Canyon Comment
  CDA2269  Pennisetum clandestinum D. G. Kelch 2006-12-9 6 .566 Orange Irvine. University Dr along tidal creek just E of I-73. Comment
  SD175783  Pennisetum setaceum D. G. Kelch 2006-12-9 06 564 Orange Irvine, University Dr. along tidal Creek just east of I-73. 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
  RSA652980  Pennisetum setaceum Darren Day 1984-5-5 19 Orange This plant was found growing on the east side of Laguna Canyon Rd. as you are traveling towards the city of Laguna Beach. This location is approximately 3.4 miles out of town. Comment
  RSA407931  Penstemon heterophyllus Claire Kibbe 1936-07 19981 Orange Santa Ana Canyon. Comment
  POM18089  Penstemon heterophyllus var. australis Philip A. Munz 1923-9-7 7748 Orange Santiago Peak in Santa Ana Mountains. 1707 Comment
  RSA7395  Penstemon heterophyllus var. australis Carl B. Wolf 1933-8-24 1914 Orange From Modfeska peak to Santiago peak. Common upper sonoran. 1524 Comment
  POM256957  Penstemon heterophyllus var. australis W. Pequegnat 1940-6-15 s.n. Orange Santa Ana Mountains: Modjeska Flat. 1372 Comment
  RSA202999  Penstemon spectabilis James Henrickson 1967-4-30 2468 Orange 2 miles north of Lake Elsinore. 396 Comment
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Mar 16 2013
  POM351577  Pentachaeta aurea Anstruther Davidson 1893-05 s.n. Orange Santiago Canyon Comment
  POM351578  Pentachaeta aurea Theodore Payne 1910-4-18 1931 Orange Santiago Canyon Comment
  CAS-BOT-BC77510  Peritoma arborea var. arborea Carl B. Wolf 1932-3-8 2684 Orange 1/2 mi. No. of Corona Del Mar, borders of Newport Bay 7 Comment
  RSA710822  Persea cinerascens R. W. Scora 1997-5-13 5142 Orange Zentmyer Avocado Collection, Field 3, South Coast Field Station, Irvine. 21 Comment
  SEINET1004068  Persea cinerascens R. W. Scora 1997-1 5142 Orange Zentmyer Avocado Collection, Field 3, South Coast Field Station, Irvine 21 Comment
  UCR220294  Petunia parviflora Robert Hamilton 1998-6-3 s.n. Orange South Coast, Fountain Valley, Mile Square Park, NE corner 'hobby area 14 Comment
  OBI30179  Phacelia cicutaria var. hispida Nancy J. Mann 1976-5-23 s.n. Orange Charlton ranch, 1.2 mi N of Modjeska Cyn rd on Santiago Cyn rd, Santa Ana Mts Comment
  POM147493  Phacelia cicutaria var. hispida F. M. Reed 1928-5-11 5880 Orange West end of Carbon Canyon. Comment
  RSA221010  Phacelia cicutaria var. hispida E. W. Lathrop 1966-4-18 6174 Orange 4 mi NE of Lake Irvine, Black Star Canyon, Cleveland National Forest, Trabuco District. Comment
  UCR191020  Phacelia cicutaria var. hispida A. C. Sanders, Fred M. Roberts 2008-4-22 35021 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Limestone Canyon, c. 2 miles SW of Silverado 396 Comment
  UCR192068  Phacelia cicutaria var. hispida A. C. Sanders, Fred M. Roberts 2008-5-6 35244 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
  SD152828  Phacelia cicutaria var. hispida Steve Boyd, Tim Ross 1992-5-20 7456 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of the silderness in Luca Canyon along a new section of trail heading up major side canyon northward to Sitton Peak Road (7S09). 305 Comment
  UCSB34159  Phacelia cicutaria var. hispida Nilsen, Erik; Roberts, Fred; Roberts, D. 1980-5-2 Orange Along Hwy. 74, 0.2 km. SSW of the entrance to the Lower San Juan Picnic area, San Juan Mountains 390 Comment
  RSA741728  Phacelia cicutaria var. hubbyi R. E. Riefner Jr. 2007-6-14 7 -257 Orange Irvine Ranch Reserve, Fremont Canyon Conservation Easement, W Fremont Canyon, Windy Ridge area. 478 Comment
  JEPS89037 Image available Phacelia ciliata var. ciliata Rimo Bacigalupi and L. Heckard 1962-3-25 8382 Orange hill slopes near Handy Creek (on road to Irvine County Park, 3.5 mi e of El Modeno) Comment
  JEPS2401  Phacelia distans Alice King 1908-3-9 Orange Anaheim plains Comment
  UCR224159  Phacelia distans Fred M. Roberts 2008-3-20 6789 Orange South Coast, Dana Point Headlands, Center for Natural Lands Mgmt. Preserve, 0.8 km west of the Marine Institute, Dana Point Harbor 60 Comment
  RSA552939  Phacelia minor Fred M. Roberts, Carol A. Roberts 1989-4-20 4296 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
  UC1377699  Phacelia minor John Ingram 1960-3-29 268 Orange roadsides across from O'Neill Park; Trabuco Canyon Comment
  UCR193499  Phacelia minor A. C. Sanders, T. B. Salvato 2008-5-13 35363 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
  UCR193824  Phacelia minor A. C. Sanders, Fred M. Roberts 2008-7-16 35873 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Creek wash at and above the confluence of Hangmans Tree Canyon 370 Comment
  RSA699146  Phacelia minor Minor Warne 1934-5-6 s.n. Orange Ortega Highway Comment
  UCSB48211  Phacelia minor Roberts, Jr., Fred 1981-5-3 Orange Santa Ana Mtns.; Hot Springs Canyon, 1.3 km. NNE San Juan Guard Station 276 Comment
  RSA428279B  Phacelia suaveolens subsp. keckii Albert J. Perkins 1914-6-14 s.n. Orange Santiago Peak. Comment
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Jul 21 2018
  RSA759151  Phacelia suaveolens subsp. keckii Robt. Allen, Lori Whalen 2008-7-5 s.n. Orange Along Harding Canyon Truck Trail, on the ridgeline south of upper Harding Canyon. 1.55 air miles SW of Maple Springs Saddle - Harding Canyon USFS gate, 0.71 air miles due W of BM 5015 on Main Divide Road, W arm of Modjeska Peak., Survey point no. 38 1298 Comment
  UCR170303  Phalaris aquatica Karlin G. Marsh 1983-5-25 s.n. Orange South Coast, side of Sycamore Hills, Laguna Canyon Comment
  UCR154352  Phalaris canariensis Mark A. Elvin 2004-5-2 3422 Orange Southern Coastal, Irvine: San Joaquin Freshwater Marsh, near Campus and University Drives; 1.7 km (air) NNW UC Irvine campus center 3 Comment
  IRVC22183  Phalaris minor Fred M. Roberts 1985-4-11 1642 Orange Dana Point Headlands; Weyerhaeuser Horticultural Research Station property. Southern Coastal 61 Comment
  POM356937  Phalaris paradoxa Anstruther Davidson 1916-6-1 3156 Orange Brea Ranch Comment
  UCR66995  Phoenix canariensis A. C. Sanders 1990-10-6 10197 Orange Newport Bay, North Star County Beach Area on the SW end of the Bay, c. 2 km inland of Hwy 1. 3 Comment
  UCSB44692  Pholistoma auritum Hibbard, Doug 1977-3-4 Orange Off the south side of Back Bay Rd., 0.7 miles from its crossing with Jamboree Blvd., New Port Beach 4 Comment
  RSA683932  Phyllospadix scouleri E. Yale Dawson 1957-2-14 16149 Orange Laguna Beach, Orange County Comment
  RSA384025  Phyllospadix torreyi N. Brown 1929-7-4 14864 Orange Dana Point. Comment
  JEPS8966  Physalis philadelphica John Thomas Howell 1927-7-28 2869 Orange Santa Ana Canyon, Rancho Santa Ana Santa Ana Canyon; , Rancho Santa Ana 152 Comment
  RSA731932  Physalis philadelphica Fred M. Roberts, Sandra Leatherman 2007-11-27 6678 Orange Yorba Linda: drainage channel on east side of Amberdale Dr. c.a. 0.3km S Fairmont Blvd. 118 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
  RSA655237  Pilularia americana D. E. Bramlet 1998-3-21 2579 Orange Fairview Park, City of Costa Mesa. The site is located some 366m N of the intersection of Wilson and Canyon Dr. and 152 m W of the Canyon School, on a mesa overlooking the Santa Ana River. 24 Comment
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Feb 26 2009
  RSA129457  Pinus coulteri H. E. Norton 1931-3-20 44 Orange Corona. T4S R7W [Corona Quadrangle map]. Plot #30, Corona #2. Comment
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Jul 14 2014
  UCR144743  Pinus coulteri A. S. Boughey 1965-3-16 58 Orange Santa Ana Mtns., Silverado Canyon Comment
  SD255023  Pinus coulteri R. F. Thorne, E. W. Lathrop 1977-5-18 79731 Orange Santa Ana Mountains: at head of Trabuco Canyon Trail. Comment
  UCR194193  Pinus sabiniana A. C. Sanders 2008-7-3 35716 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Canyon near mouth of Limestone Cyn., at Agustine Staging Area 260 Comment
  CAS-BOT-BC136555  Piperia cooperi Alice Eastwood; John Thomas Howell 1937-4-24 3924 Orange Field redacted by CAS, contact the data manager for more information Comment
  RSA749312  Piperia cooperi Fred M. Roberts 1999-4-22 5193 Orange Lomas de Santiago: ridges between Limestone Cyn. and Santiago Creek wash opposite mouth Williams Cyn., 2.0 km SE Silverado Sch. and 2.2 km NNW Bolero Lookout. 400 Comment
  RSA184119  Piptatherum miliaceum I. L. Wiggins 1965-10-24 20291 Orange At corner of Yorba Linda and State College Blvds., Fullerton Comment
  RSA756321  Pistacia chinensis A. C. Sanders, Fred M. Roberts, Jutta Burger 2009-10-21 37202 Orange Lomas de Santiago, Santiago Canyon near mouth of Limestone Cyn., near Agustine Staging Area at south foot of Blue Diamond Haul Rd. bridge over Santiago Canyon Rd. 253 Comment
  UCR189552  Pittosporum undulatum Fred M. Roberts 2007-10-29 6618 Orange South Coast, Niguel Hill, Laguna Niguel. Seaview Park, 1.3 km ENE of Aliso Peak 265 Comment
  UCR234436  Pittosporum undulatum Dick Newell, Judy Booth 2012-4-29 247 Orange South Coastal Plain, Aliso Creek, 0.25 mi. north of Pacific Coast Highway 9 Comment
  SBBG15548  Plagiobothrys D. E. Breedlove 1962-3-9 1797 Orange St Hwy 74, 4.4 mi E of San Juan Capistrano 112 Comment
  CAS-BOT-BC354027  Plagiobothrys acanthocarpus R. E. Riefner, Jr. 2013-3-17 13 -44 Orange City of Irvine, Jeffrey Trail, vicinity of Shady Canyon Dr. at Fossil Rd. 47 Comment
  UCR171016  Plagiobothrys acanthocarpus R. E. Riefner Jr. 2006-4-12 06- 116 Orange Irvine, north foot of San Joaquin Hills, vicinity of Quail Hill, SSW of 405 Freeway and Shady Canyon Rd. 46 Comment
  UCR107858  Plagiobothrys collinus Scott D. White 1998-3-18 6211 Orange UCI, site of proposed research park, c. halfway between Berkeley Ave. and new freeway. 37 Comment
  UCR191345  Plagiobothrys collinus A. C. Sanders, Fred M. Roberts 2008-4-8 34742 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, head of Hicks Canyon, S of Santiago Reservoir 351 Comment
  RSA627747  Plagiobothrys collinus var. californicus Scott D. White 1998-3-18 6211 Orange UCI Campus: Site of proposed Research Park, Southwest of main campus circle, ca. halfway between Berkley Ave. and new Freeway (Bonita Cyn.). Plains dissected by a series of gullies. 37 Comment
  IRVC22199  Plagiobothrys collinus var. fulvescens Fred M. Roberts 1985-4-8 1637 Orange San Joaquin Hills, Turtle Rock area, hill 1.1km SE French Hill, Irvine 196 Comment
  RSA732238  Plagiobothrys nothofulvus A. C. Sanders, Fred M. Roberts 2008-4-22 35045 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
  RSA0045608  Plagiobothrys nothofulvus Keith E. Hoffmaster 1935-3-17 555 Orange Near El Toro (Trabuco rd). Comment
  RSA3168  Plagiobothrys nothofulvus C. B. Wolf 1932-3-8 2695 Orange Santiago Dam at W base of Santa Ana Mts. 305 Comment
  HSC3777  Plagiobothrys tenellus J. W. Johnson 1961-3-29 Orange N slope on S side of Upper Newport Beach Comment
  RSA599634  Planodes virginica Fred M. Roberts, Nigel Hancock 1995-5-25 4949 Orange Costa Mesa: Fairview Park, just west of end of Canyon Drive, 0.1 km W Canyon School 24 Comment
  UC1618006  Plantago arenaria Donald G. Nelson 1935-4-14 271 Orange near Pacific Electric Railway Station (Newport Beach); Newport Beach Comment
  RSA412599  Plantago bigelovii subsp. californica Anstruther Davidson 1910-04 2350 Orange Corona Del Mar. Comment
  UCR237838  Plantago elongata Mark A. Elvin 2003-2-2 2261 Orange South Coast, San Joaquin Marsh, UCI campus SSE of intersection of Jamboree Blvd. and Campus Dr. 2 Comment
  RSA734805  Plantago erecta A. C. Sanders, Fred M. Roberts 2008-5-6 35253 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
  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
  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
  HSC16872  Plantago indica Unknown Jun 1961 Orange Vacant lot in Balboa Comment
  RSA412558  Plantago lanceolata Albert J. Perkins 1920-6-24 s.n. Orange Santa Ana. Comment
  IRVC28915  Plantago rhodosperma Fred M. Roberts, Karlin G. Marsh 1988-4-25 3931 Orange San Joaquin Hills: E flank Pelican Hill, 0.9km SE summit. Southern Coastal 120 Comment
  SD241125  Plantago subnuda A. C. Sanders 2011-8-20 39889 Orange South Coast: city of Placentia, Tri-City Park on North Kraemer Blvd. at Golden Ave. (Yorba Linda 7.5'Q) 103 Comment
  SD236357  Platanus acerifolia A. C. Sanders, Fred M. Roberts 2008-8-7 35976 Orange Peninsular Range; Santa Ana mountains: lower Weir Canyon , at narrow gorge c. 0.6 miles above moth of cyn at Irvine Ranch gate. 185 Comment
  IRVC29040  Platanus racemosa Mark A. Elvin, A. C. Sanders 2005-9-2 4500 Orange Mouth of Lion Cyn, just up stream from Lower San Juan Campground. Santa Ana Mtns 457 Comment
  RSA725469  Platanus racemosa Fred M. Roberts, Megan Lulow 2007-7-30 6549 Orange Fremont Canyon, 1.3 km NE Irvine Lake spillway, North Irvine Ranch Policy Area. 253 Comment
  UCR193772  Platanus racemosa A. C. Sanders, Fred M. Roberts 2008-7-3 35700 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along Windy Ridge Rd. at wash crossing, 0.95 mi. SE of Walnut Canyon Reservoir 242 Comment
  CAS-BOT-BC92245  Platystemon californicus Carl B. Wolf 1932-3-14 2713 Orange Rancho Santa Ana Botanic Garden, near the Chrysothamnus beds. 192 Comment
  RSA722433  Platystemon californicus L. C. Hull 1934-3-11 s.n. Orange Ortega Highway. Comment
  SEINET12102790  Platystemon californicus Unknown 1884-1 s.n. Orange Anaheim Comment
  SD218283  Plecostachys serpyllifolia R. E. Riefner Jr. 2009-7-18 09 151 Orange City of Dana Point, beach near Salt Creek, vicinity of Ritz Carlton Resort. Comment
  SEINET6413740  Plecostachys serpyllifolia R. Spellenberg 2014-5-6 14775 Orange Laguna Beach, Aliso Creek Beach Park; ca 500 m S of lat/long. 1 Comment
  UCR229286  Plecostachys serpyllifolia R. E. Riefner Jr. 2011-7-7 11- 88 Orange city of Dana Point, south of Mussel Cove, north of Salt Creek Beach Park 9 Comment
  RSA731529  Plecostachys serpyllifolia R. E. Riefner 2007-4-28 07 -190 Orange City of Newport Beach, Dover Beach, vicinity of Morning Star Ln. and Polaris Dr. 8 Comment
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Dec 13 2012
  RSA751406  Plecostachys serpyllifolia R. E. Riefner Jr. 2007-4-28 07 -190 Orange City of Newport Beach, Dover Beach, vicinity of Morning Star Ln., and Polaris Dr. 8 Comment
  RSA801997  Plectritis ciliosa Keith E. Hoffmaster 1935-5-5 971 Orange San Juan Canyon., Santa Ana Mts. Comment
  UCSB57585  Plectritis ciliosa Roberts, Fred 1984-4-14 Orange Santa Ana Mtns.: Chiquito Basin, San Juan Trail, 1.9km SW Blue Jay Campground; 2.8km S Los Pinos Peak 840 Comment
  RSA930  Pluchea odorata J. T. Howell 1927-9-24 751 Orange Santa Ana River Bottom, Rancho Santa Ana 152 Comment
  RSA93085  Pluchea odorata F. W. Peirson 1919-11-8 1299 Orange Aliso Creek. 0 Comment
  RSA933  Pluchea odorata J. T. Howell 1927-10-29 780 Orange Bryant Ranch near Long Beach. 15 Comment
  UC537028  Pluchea odorata var. odorata Lawrence M. Booth 1932-7-19 1272 Orange Bolsas Marsh Comment
  POM17610  Pluchea sericea P. A. Munz 1923-4-1 7325 Orange Laguna Beach, upper edge of beach, 2 miles north-west of Laguna. Comment
  CAS-BOT-BC255536  Poa annua Ira L. Wiggins 1966-2-12 20441 Orange On W side of State College Blvd, opposite Electra Way, Fullerton Comment
  RSA734637  Poa annua A. C. Sanders, T. B. Salvato 2008-5-13 35357 Orange Lomas de Santiago, Santiago Canyon above (S of) mouth of Hangman Tree Canyon, just below Modjeska Canyon confluence 366 Comment
  RSA697756  Poa annua Wilma Griset 1931-2-18 s.n. Orange Santa Ana. Vacant lot. Comment
  UCSB47947  Poa fendleriana Roberts, Dar 1980-5-3 Orange .6 km East by S.E. of Los Pinos Spring, on Main Divide Truck Trail 1000 Comment
  RSA699308  Poa pratensis Keith E. Hoffmaster 1927-5-30 33 Orange Santa Ana. Comment
  IRVC15481  Poa scabrella Bruce Reynolds 1965-4-19 s.n. Orange Newport Beach; Corona del Mar, Corona Del Mar High School. Southern Coastal Comment
  IRVC24561  Poa secunda Fred M. Roberts 1986-4-11 2782 Orange San Juan Canyon, Hwy 74, 1.2km SSW Lower San Juan Picnic Ground, Santa Ana Mountains 378 Comment
  UCSB57140  Poa secunda subsp. secunda Marsh, G.; Marsh, K. 1978-5-20 Orange Santa Ana Mts., NE portion of Coal Canyon 335 Comment
  UCR102030  Polycarpon tetraphyllum B. G. Pitzer 1997-3-25 3027 Orange San Joaquin Hills, Crystal Cove State Park, Pelican Point Area, grassland between Pacific Coast Hwy and the bike trail 30 Comment
  IRVC28641  Polygala cornuta var. fishiae Mark A. Elvin, A. C. Sanders 2005-9-2 4496 Orange Mouth of Lion Cyn, just up stream from Lower San Juan Campground. Santa Ana Mtns 457 Comment
  RSA557729  Polygala cornuta var. fishiae Steve Boyd, Tim S. Ross 1992-5-4 7172 Orange Santa Ana Mountains, San Juan Canyon along Ortega Hwy (Hwy 74) at pullout 2.9 miles east of San Juan Guard Station. Comment
  RSA561496  Polygala cornuta var. fishiae Steve Boyd, Kyle Boyd 1992-7-9 7654 Orange Northern Santa Ana Mountains, along the main crest of the range, north of Pleasants Peak and south of Oak Flat (aka Oat Flat), 1.5 miles south of junction of Main Divide and Skyline Roads. Comment
  RSA0054920  Polygonum acre Keith E. Hoffmaster 1933-10-1 489 Orange Near Tustin. Comment
  JEPS51306  Polygonum argyrocoleon Lawrence M. Booth 1932-7-25 1317 Orange Santa Ana River; coastal Comment
  RSA5965  Polygonum argyrocoleon Carl B. Wolf 1932-9-13 4038 Orange Bryant Ranch, No. boundary between San Gabriel River Flood Control Dike and Well. 6 Comment
  UCR193820  Polygonum aviculare A. C. Sanders, Fred M. Roberts 2008-7-16 35866 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Creek wash at and above the confluence of Hangmans Tree Canyon 370 Comment
  UCR46714  Polygonum aviculare B. G. Pitzer, D. C. Hawks 1986-12-17 0380 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, on Santiago Cyn Rd., c. 1.0 mi SW of [Irvine Lake] Santiago Reservoir 305 Comment
  OBI30214  Polygonum aviculare SAW 1971-3-12 3 F Orange Cal State Fullerton Campus 122 Comment
  RSA0054921  Polygonum aviculare Keith E. Hoffmaster 1926-12-18 490 Orange Santa Ana. Comment
  CAS-BOT-BC414043  Polygonum aviculare subsp. aviculare Ira L. Wiggins 1966-5-25 20667 Orange Parkway along south side of Nutwood Lane, margin of CSCF campus, Fullerton Comment
  UCR150564  Polygonum hydropiperoides Scott D. White, Matt Carlton 2003-11-20 9868 Orange South Coastal Plain, Santa Ana Mtn foothills. San Juan Creek in San Juan Capistrano 24 Comment
  RSA683226  Polygonum lapathifolium Scott D. White, Matt Carlton 2003-11-20 9869 Orange Santa Ana Mountain foothills; San Juan Creek in San Juan Capistrano; (San Juan Capistrano). 24 Comment
  RSA788965  Polygonum lapathifolium Robert F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49580 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74) Comment
  RSA0054922  Polygonum lapathifolium Keith E. Hoffmaster 1933-10-1 488 Orange Near Tustin. Comment
  RSA66319  Polygonum lapathifolium F. W. Peirson 1924-10-19 5233 Orange Wintersberg Comment
  IRVC3043  Polypodium californicum C. Thompson 1965-4-15 HS0570 Orange Trabuco Canyon. Santa Ana Mountains 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
  IRVC14171  Polypodium californicum K Marrosh 1966-4-6 s.n. Orange Silverado Canyon, 3mi from pavement's end, 100ft from rd.; among rocks on stream bank. Santa Ana Mountains Comment
  SEINET218267 Image available Polypodium californicum Robinson, Crocker 1916-3-28 Orange Santa Ana Mts. Comment
  UCSB62516  Polypodium californicum Kiefer, Lawrence 1963-11-17 Orange Santa Ana Mtns., San Juan Canyon, 2nd ravine W of entrance to lower San Juan Camp, just S of Hwy 74. 426 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
  RSA735159  Polypogon monspeliensis A. C. Sanders, Fred M. Roberts 2008-5-6 35239 Orange Lomas de Santiago, Loma Ridge, head of Hicks Canyon, south of Santiago Reservoir 351 Comment
  SD220029  Polypogon monspeliensis Mark A. Elvin 2004-5-2 3416 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7 km (air) NNW UC Irvine campus center. 3 Comment
  CAS-BOT-BC237507  Polypogon viridis Le Roy Abrams 1901-6-12 1760 Orange Santa Ana River Comment
  POM1140  Polypogon viridis Le Roy Abrams 1901-06 1805 Orange Santiago Peak trail. Comment
  UCSB48202  Polypogon viridis Roberts, Fred 1981-6-26 Orange Santa Ana Mts., San Juan Canyon, 0.1 km. N Lower San Juan Picnic Ground 390 Comment
  RSA708364  Polystichum imbricans subsp. curtum Fred M. Roberts, Robert L. Allen, Chris Barnhill, Nancy Hatfield 2005-5-30 6228 Orange west slope of Modjeska Peak, Harding Canyon watershed, Main Divide Road, 0.46km W summit. 1670 Comment
  RSA0035664  Populus balsamifera subsp. trichocarpa R. E. Riefner Jr. 2012-9-23 12 -512 Orange city of Yorba Linda, Santa Ana Canyon, north side of Santa Ana River, La Palma Avenue at Via Del Rio Road 104 Comment
  CAS-BOT-BC102599  Populus fremontii Marcus E. Jones 1930-3-3 26533 Orange Santa Ana Mountains Comment
  RSA17460  Populus fremontii Carl B. Wolf 1936-9-23 8724 Orange Rancho Santa Ana, Santa Ana Canyon. 122 Comment
  IRVC27726  Populus fremontii subsp. fremontii Mark A. Elvin 2004-5-2 3430 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7km (air) NNW UC Irvine campus center. Southern Coastal 3 Comment
  UCSB48128  Populus fremontii subsp. fremontii Roberts, Fred 1981-4-12 Orange Santa Ana Mountains: San Juan Canyon, Hwy 74, 1.3km by road E San Juan Guard Station; 0.9km SE Juan Rancho Survey Mark 89 Comment
  RSA725795  Populus trichocarpa R. E. Riefner 2006-9-16 06 -434 Orange Yorba Linda, north of Chapman Ave. c. 1 mile along floodplain of Santa Ana River. 98 Comment
  POM180684  Porophyllum gracile J. T. Howell 1929-3-2 4097 Orange Rocky hills on N side of Santa Ana Canyon. 152 Comment
  RSA934  Porophyllum gracile J. T. Howell 1927-7-28 509 Orange Nolina Canyon, Rancho Santa Ana 152 Comment
  CAS-BOT-BC452120  Potamogeton crispus Johnston 1919-5-15 2785 Orange Santa Ana River Comment
  UC217958  Potamogeton pectinatus P. A. Munz 1922-9-2 6348 Orange Laguna Canyon 45 Comment
  RSA650384  Prunus Jack D. Ingwersen 1962-5-12 s.n. Orange Anaheim Comment
  RSA613774  Prunus caroliniana B. Pitzer, M. Georgiady 1997-4-5 3078 Orange San Joaquin Hills Crystal Cove State Park, along No Dogs Trail (from parking area, along western bottom edge of ridge between Muddy Canyon and Moro Canyon), to just below intersection with Poles trail 152 Comment
  RSA542402  Prunus ilicifolia Fred M. Roberts Jr., Carol A. Williams 1988-3-8 3826 Orange San Juan Canyon, Hwy 74, 1.2 km SSW Lower San Juan Picnic Ground. 378 Comment
  POM358761  Pseudognaphalium biolettii M. B. Dunkle 1933-4-9 3282 Orange Dana Point. Comment
  UCSB47974  Pseudognaphalium biolettii Roberts, Jr., Fred 1980-2-17 Orange North of Dana Strand road on the bluff west of Dana Marina, Dana Point 56 Comment
  SD140194  Pseudognaphalium biolettii B. Pitzer, S. Hemstreet 1992-5-21 1945 Orange Cleveland National Forest. State Hwy 74, 1 mile uphill from the 2,000 ft. marker, and to the left ca. 0.1 mile on an old paved road. 762 Comment
  RSA737237  Pseudognaphalium leucocephalum R. E. Riefner 2007-9-11 07 -379 Orange City of San Juan Capistrano, vicinity of San Juan Creek road and Paseo Christina. 34 Comment
  UCR194995  Pseudognaphalium luteoalbum A. C. Sanders, Fred M. Roberts 2008-8-7 36002 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon at powerline crossing, 1.0 mi. (air) SSE of Walnut Canyon Reservoir 226 Comment
  UC537030  Pseudognaphalium stramineum Lawrence M. Booth 1932-7-19 1275 Orange Bolsas Marsh Comment
  CAS-BOT-BC357570  Pseudognaphalium stramineum Ira L. Wiggins 1966-3-18 20533 Orange Experimental Garden behind greenhouse, California State College at Fullerton 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
  IRVC2822  Pseudotsuga macrocarpa A. S. Boughey 1965-3-16 75 Orange Santa Ana Mtns: Silverado Cyn. Peninsular Ranges Comment
  RSA587887  Psilocarphus brevissimus Fred M. Roberts 1990-5-7 4612 Orange Rancho Mission Viejo: Ridge S of Blind Canyon and E of Christianitos Canyon, TRW Lease Holding, 5.0 km NE Clemente Survey Marker 152 Comment
  RSA263691  Psilocarphus tenellus E. W. Lathrop 1966-4-10 6155 Orange Silverado Canyon, Santa Ana Mountains, Cleveland National. Forest, Trabuco District. 366 Comment
  RSA790025  Psoralea macrostachya Robert F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49564 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74) Comment
  RSA797912  Psoralea macrostachya Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49822 Orange Santa Ana Mountains: Trabuco Canyon Comment
  RSA591808  Pulicaria hispanica P. H. Raven 1961-10-15 16847 Orange Anaheim: Santa Ana River Bed at Anaheim Street crossing. 61 Comment
  CAS-BOT-BC362146  Pulicaria paludosa Robert L. Pope 1959-8-14 s.n. Orange Ray Miller prop., Santa Ana Canyon, e. of Fullerton Comment
  RSA679099  Pulicaria paludosa Fred M. Roberts 2003-7-24 5964 ` Orange San Juan Capistrono: San Juan Creek, c.a. 0.1 km NE La Novia Bridge. Along creek on cobbly sand of wash in open southern willow scrub and mulefat scrub. 27 Comment
  RSA725460  Pulicaria paludosa Fred M. Roberts 2007-8-6 6557 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
  UCD148359  Pulicaria paludosa T. C. Fuller 1963-10-9 11362 Orange North facing slope of the Santa Ana Canyon, 0.1 mile south of Riverside Freeway to Anaheim. Around 2 miles west of the Riverside county line in Orange County. Comment
  UCR116013  Pulicaria paludosa George K. Helmkamp, E. A. Helmkamp 2000-10-18 6230 Orange Newport Bay, South side of the back bay. 6 Comment
  UCR186137  Pulicaria paludosa T. B. Salvato, Katie Kurtz 2006-10-15 1923 Orange South Coast, Irvine, San Diego Creek flood control channel, near Michelson Drive and Harvard Avenue 6 Comment
  RSA0041475  Pulicaria paludosa Fred M. Roberts, Robert L. Allen 1985-8-19 2163 Orange Mission Viejo: English Creek near confluence of Aliso Creek, 1.1km E E1 Toro Fire Station. 138 Comment
  POM18141  Pycnanthemum californicum P. A. Munz 1923-9-7 7757 Orange Trail Trabuco Canyon to Santago Peak 915 Comment
  RSA221064  Pyrus communis E. W. Lathrop 1966-4-18 6176 Orange Santa Ana Mountains, 4 miles northeast of Lake Irvine, Black Star Canyon, Cleveland National Forest, Trabuco District. Comment
  POM188843  Quercus agrifolia Marcus E. Jones 1931-3-23 28443 Orange Laguna. Comment
  CAS-BOT-BC86442  Quercus berberidifolia A. M. White 1974-6-1 1398 Orange About 20 mi E. of Santa Ana, N. of Silverado County 1005 Comment
  IRVC24487  Quercus berberidifolia Fred M. Roberts 1986-2-28 2600 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
  RSA12731  Quercus berberidifolia Carl B. Wolf 1933-11-3 5529 Orange Main Divide Motorway on slopes of Modjeska Peak 1372 Comment
  UCR119800  Quercus berberidifolia R. E. Riefner Jr. 2000-3-19 20- 144 Orange Santa Ana Mountains, North Ranch Policy Plan Area, top of Gypsum Canyon, Windy Ridge 518 Comment
  UCR132989  Quercus berberidifolia Adrian Wolf 2000-7-3 448 Orange Santa Ana Mtns., 0.4 km SE of Black Star Canyon mouth 290 Comment
  UCSB58639  Quercus berberidifolia Muller, Cornelius 1953-5-2 Orange Swain Canyon, lower end, Catalina Island Comment
  RSA0105422  Quercus berberidifolia Keith E. Hoffmaster 1930-1 406 Orange Santa Ana Mts. Comment
  IRVC1334  Quercus chrysolepis A. S. Boughey 1965-3-16 68 Orange Santa Ana Mtns: Silverado Cyn. Peninsular Ranges Comment
  RSA697627  Quercus chrysolepis Leo Miller 1938-3-26 s.n. Orange Summit of Saddleback. Comment
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Apr 26 2014
  RSA697628  Quercus chrysolepis Leo Miller 1938-3-26 s.n. Orange Near top of Saddleback Mt. Comment
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Apr 26 2014
  UCSB52402  Quercus cornelius-mulleri Roberts, Fred 1981-4-11 Orange Santa Ana Mtns.; Long Cyn. along road 1.0 km. W Calif. 74; 2.3 km. SE Blue Jay Camp Ground 800 Comment
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Dec 6 2016
  CAS-BOT-BC86387  Quercus dumosa John Thomas Howell 1927-6-16 2542 Orange ridge N side of Santa Ana canyon 152 Comment
  RSA550590  Quercus dumosa Fred M. Roberts, Marsh 1988-4-26 3952 Orange San Joaquin Hills, Pelican Hill, 0.4 km SW summit. 183 Comment
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Oct 16 2013
  UCD170637  Quercus dumosa D. O. Burge 2017-11-17 2326 Orange Laguna Niguel. 140 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
  UCD46641  Quercus kelloggii G. A.; K. G. Marsh 1976-12-15 s.n. Orange Santa Ana Mts: Silverado Truck Trail, 0.2 mi N of Main Divide junction. Comment
  RSA0038510  Quercus suber R. E. Riefner Jr. 2012-11-18 12 -555 Orange city of Irvine, San Joaquin Wildlife Sanctuary, South Loop Trail, north of San Diego Creek, west of Campus Drive 8 Comment
  IRVC28198  Quercus wislizeni A. C. Sanders, Mark A. Elvin 2005-9-2 Orange Santa Ana Mountains; near head of Holy Jim Cyn, a tributary to Trabuco Cyn, along trail in the switchbacks, below the towers on Santiago Peak. Peninsular Ranges 998 Comment
  SEINET7766843  Quercus wislizeni Unknown 1966-8-22 2389 Orange O'Neill State Park Comment
  UCR261711  Rafinesquia californica Dick Newell, Don Millar 2015-3-24 393 Orange South Coast, San Joaquin Hills, on Willow Canyon Trail 0.2 mi. west of Laguna Coast Wilderness Park entrance off Laguna Canyon Rd. 88 Comment
  RSA0058056  Rafinesquia californica Robert F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49605 Orange Santa Ana Mountains: rocky ravine tributary to San Juan Canyon, along Ortega Highway (74) about 2 miles above San Juan Fire Station. Comment
  RSA734144  Ranunculus asiaticus Virginia Pritchard, Ruth Greenwald 1938-05 s.n. Orange Santa Ana. Comment
  POM296378B  Ranunculus californicus Lyman Benson 1947-4-27 12338 Orange Carbon Canyon. Chino-Puente Hills; Pacific Slope Drainage Area. 244 Comment
  RSA734149  Ranunculus californicus Minor Warne 1934-03 s.n. Orange Laguna Canyon Forks Comment
  IRVC1135  Raphanus sativus C. Duncan 1965-4-3 Orange Newport Beach Comment
  IRVC1161  Raphanus sativus L. Stilgenbauer 1965-4-10 Orange Corona del Mar, 339 Milford Dr.; in canyon. Newport Beach Comment
  SD152899  Raphanus sativus Steve Boyd, Tim Ross 1992-5-19 7446 Orange Southern Santa Ana Mountains; western edge of the wilderness in Alixo Canyon at the confluence with Lucas Canyon, upstream to the Lucas Canyon Trail crossing. 274 Comment
  RSA0064525  Raphanus sativus T. Pringle 1966-2-10 4 Orange In the field behind the Sunny Crest Drive at Harbor Blvd., Fullerton. Comment
  RSA651170  Raphanus sativus Norman Willis 1948-2-8 s.n. Orange 2 miles E of Orange 60 Comment
  UCR188929  Rauvolfia samarensis Robert DeRuff 2007-11-24 s.n. Orange Newport Beach, Upper Newport Bay, above Back Bay Drive in the vicinity of the Narrows, c. 0.8 km north of Big Canyon 26 Comment
  CDA1075  Rhamnus alaternus D. G. Kelch 2006-12-9 6 .546 Orange Along Newport Back Bay Dr. in side canyon. Comment
  RSA663161  Rhamnus californica R. E. Riefner 2000-8-3 20 -711 Orange NCCP North Ranch Policy Plan Area. E of Main Divide Road and Windy Ridge. 535 Comment
  CAS-BOT-BC56027  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-BC56037  Rhamnus ilicifolia C. B. Wolf 1931-3-6 1838 Orange 1/2 mile above Trabuco Oaks, Trabuco Canyon, west slope Santa Ana Mts. 457 Comment
  JEPS42046  Rhamnus ilicifolia John Thomas Howell 1927-7-22 2824 Orange Claymine Canyon Santa Ana Mts. 182 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
  UC592699  Rhamnus ilicifolia P. C. Everett 1935-6-19 Orange 2 mi below Forest Service Patrol Station; Santa Ana Mts., Trabuco Canyon 365 Comment
  UCSB21805  Rhamnus ilicifolia Merrill, Roy 1965-4-11 Orange 11.5 mi. on State 74 from U.S. 101, Santa Ana Mts. 274 Comment
  IRVC68  Rhus integrifolia A. S. Boughey, P. Pembrook 1965-7-16 1011 Orange Los Trancos Canyon, near spring, ; chaparral. San Joaquin Hills Comment
  LA62809  Rhus integrifolia Carl Epling; Harlan Lewis 1940-4-21 sn Orange hills 6 mi. E of San Juan Capistrano Comment
  RSA0125890  Rhus integrifolia Fred M. Roberts Jr. 2012-4-24 7512 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
  RSA3178  Rhus integrifolia C. B. Wolf 1932-3-8 2685 Orange 1/2 mile N of Corona del Mar, Newport Bay. 8 Comment
  RSA454  Rhus integrifolia J. T. Howell 1927-7-29 516 Orange Near east boundary of Rancho Santa Ana. 213 Comment
  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
  SD253896  Rhus integrifolia Jim Riley 2013-12-10 133 Orange San Clemente area; 0.29 miles E intersection Avenida Pico and Camino La Pedriza; just N San Diego County line 74 Comment
  UCR193788A  Rhus laurina A. C. Sanders, Fred M. Roberts 2008-7-3 35685 Orange Peninsular Range; Santa Ana Mtns., upper Weir Canyon, along Windy Ridge Rd. at huge sandstone boulder (visible on Google Earth), 1.3 mi. SE of Walnut Canyon Reservoir 314 Comment
  UCR234141  Rhus ovata Dick Newell, Judy Booth 2012-3-30 243 Orange Peninsular Range; Santa Ana Mtns., Maple Springs Road, Cleveland National Forest 258 Comment
  RSA3192  Rhus trilobata var. quinata B. D. Stark 1931-6-6 2232 Orange Rancho Ranta Ana. Comment
  RSA542519  Rhus trilobata var. quinata Fred M. Roberts, G. A. Marsh 1986-8-27 3108 Orange Santa Ana Mountains: Santiago Peak, Main Divide Truck Trail, 0.1km WNW Summit. 1620 Comment
  RSA735255  Ribes californicum Pomeroy 1929-2-10 71 Orange Silverado Canyon. Comment
  CAS-BOT-BC93107  Ribes californicum var. hesperium James R. Shevock 1975-4-6 4132 Orange In Silverado Canyon. Santa Ana Mountains. Cleveleand National Forest. 457 Comment
  UCR79243  Ribes californicum var. hesperium Steve Boyd, T. S. Ross 1992-5-20 7460 Orange Southern Santa Ana Mtns, San Mateo Canyon Wilderness Area: Western edge of the wilderness in Lucas Canyon along canyon floor from crossing of Lucas Canyon Trail, upstream 0.25 mi to spur trail leading to old mining habitations in side canyon. 412 Comment
  SD247656  Ribes californicum var. hesperium R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49707 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  CAS-BOT-BC173126  Ribes indecorum Robert J. Weatherby 1950-2-25 1026 Orange Harding Canyon, Santa Ana Mts. 822 Comment
  LA205443  Ribes indecorum W. Pequegnat; 1938-3-19 sn Orange Santa Ana Mountains, Holy Jim Canyon 1158 Comment
  RSA2068  Ribes indecorum Carl B. Wolf 1931-3-6 1861 Orange Trabuco Canyon Road, 1.25 miles below Trabuco Oaks. 305 Comment
  RSA439664  Ribes indecorum M. B. Dunkle 1938-3-26 5235 Orange San Juan Canyon. 30 Comment
  SBBG52710  Ribes malvaceum C. Davidson 1977-5-18 5623 Orange Bear Springs, Santa Ana Mtns 1219 Comment
  RSA184142  Ribes malvaceum var. viridifolium I. L. Wiggins 1966-2-4 20419 Orange Trabuco Canyon, about 1/2 mi. above canyon mouth Comment
  RSA732251  Ribes malvaceum var. viridifolium A. C. Sanders, Fred M. Roberts 2008-4-22 35037 Orange Lomas de Santiago, Limestone Canyon, c. 2 miles SW of Silverado 366 Comment
  UCR222393  Ribes malvaceum var. viridifolium Mark A. Elvin, Laura Soloro, Adam Sriro 2003-1-10 2219 Orange Peninsular Range; Santa Ana Mtns., c. 1.6 mi. west of Sierra Peak along road to powerlines, near Claymont Clay Mine 457 Comment
  CAS-BOT-BC173739  Ribes speciosum John Thomas Howell 1927-6-6 2451 Orange Santa Ana River bottom, Santa Ana [Canon] Canyon 152 Comment
  LA205521  Ribes speciosum C. B. Wolf; 1931-3-6 1863 Orange 1 mi. N of mouth of Harding Canyon, W. slope of Santa Ana Mts Comment
  RSA162813  Ribes speciosum J. D. Olmsted 1958-3-4 20 Orange Small pond with westward drainage into Irvine lake, 250yards. West of Oak Flat fire road intersection, which is 9 miles southeast of Corona in Santa Ana Mts. 793 Comment
  RSA733956  Ribes speciosum Lucille Crawford 1932-5-1 s.n. Orange Silverado Canyon Comment
  UCSB9363  Ribes speciosum Lloyd, Robert 1959-4-17 Orange 10 miles south of West Corona on the Oak Flats Fire Rd; Santa Ana Mt. Range 792 Comment
  SD175819  Ricinus communis D. G. Kelch 2006-12-9 06 560 Orange Irvine. University Dr. along tidal creek just E of I-73. 9 Comment
  UCR186138  Ricinus communis T. B. Salvato, Katie Kurtz 2006-10-15 1918 Orange South Coast, Irvine, San Diego Creek flood control channel, near Michelson Drive and Harvard Avenue 6 Comment
  POM2747  Ricinus communis P. A. Munz 1918-5-5 2177 Orange Laguna. Comment
  RSA0014061  Romneya coulteri Fred M. Roberts 2008-5-30 7018 Orange Lomas de Santiago: Santiago Creek wash, south of Irvine Mesa, 1.5 km SE Silverado Sch., Irvine Ranch Conservancy. 326 Comment
  RSA446200  Romneya coulteri F. R. Fosberg 1931-6-21 85094 Orange Lower Santiago Canyon. Comment
  RSA722425  Romneya coulteri Minor Warne 1934-4-21 s.n. Orange Junction Santiago and Black Star Canyons. Comment
  SD72770  Romneya coulteri F. R. Fosberg 1931-6-21 S 5094 Orange Lower Santiago Canyon, Orange County Comment
  UC144803  Romneya coulteri Katharine Brandegee June 1910 Orange The Dumps Anaheim Comment
  RSA0014062  Romneya trichocalyx Fred M. Roberts 2008-5-30 7017 Orange Lomas de Santiago: Santiago Creek wash, south of Irvine Mesa, 1.5 km SE Silverado Sch., Irvine Ranch Conservancy. 326 Comment
  CAS-BOT-BC74420  Rorippa curvisiliqua Le Roy Abrams 1901-6-1 1768 Orange Laguna. Comment
  CSUSB1432  Rorippa nasturtium-aquaticum Dave Cerf 1971-5-2 S. N. Orange Orange Park Acres. Windes Road. - 1/2 mile from the end of road (southwest). 243 Comment
  UCR130493  Rorippa nasturtium-aquaticum R. E. Riefner Jr. 2002-5-4 02- 97 Orange South Coast, Upper Newport Bay, Jamboree Road at Bayview Dr., edge of Newport Beach Q. 21 Comment
  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
  POM201872  Rosa californica L. M. Booth 1932-6-7 1161 Orange Newport Lagoon. Comment
  RSA304832  Rosa californica James R. Shevock 1970-4-25 157 Orange Santa Ana Mts. 168 Comment
  UCR128315  Royena lycioides subsp. lycioides A. C. Sanders, Mark A. Elvin 2003-10-12 27331 Orange Southern Coastal Slope, Irvine, UCI Arboretum, UCI campus near intersection of Jamboree Blvd. and Campus Dr. 15 Comment
  RSA376  Rubus ursinus J. T. Howell 1927-7-6 280 Orange Santa Ana River bottom, Rancho Santa Ana 152 Comment
  RSA685927  Rubus ursinus Fred M. Roberts 2003-3-27 5626 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, Chistianitos Canyon, along North Ride Trail, 1.37 km N Sycamore Gate, 0.36 km W Chistianitos Rd. 114 Comment
  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
  JEPS39886  Rumex conglomeratus Lawrence M. Booth 1932-6-9 1178 Orange ner coast Santa Ana River Comment
  UCR228795  Rumex crispus Dick Newell, Don Millar 2011-5-10 151 Orange Peninsular Range; Santa Ana Mtns., along MWD service road between Outdoor Education Center and Fremont Canyon, 0.2 mi. above Peters Cyn. Rd. 193 Comment
  UCR5920  Rumex crispus David M. Peterson 1966-3-9 660309- 5 Orange 2 miles east of San Juan Capistrano on the road to Elsinore 305 Comment
  UCR96898  Rumex crispus Scott D. White 1993-4-28 1285 Orange Pacific slope, Tustin Marine Corps Air Station, NW of Peters Canyon Channel, between Moffett Dr. & Warner Comment
  RSA5827  Rumex crispus Carl B. Wolf 1932-6-28 3795 Orange Bryant Ranch, north boundary of field. 9 Comment
  CAS-BOT-BC433582  Rumex hymenosepalus Helen D. Geis 1902-5-1 s.n. Orange Majeska's Comment
  POM2358  Rumex maritimus I. M. Johnston 1918-5-4 526 Orange San Joaquin Hills, Lakes in Laguna canon. 152 Comment
  UCR16515  Rumex salicifolius Steve Kulju 1974-5-27 s.n. Orange Peninsular Range; Santa Ana Mtns, San Juan Canyon, 16 mi SW of Lake Elsinore on State Hwy 74 488 Comment
  JEPS39862  Rumex salicifolius var. salicifolius Lawrence M. Booth 1932-7-4 1245 Orange Newport Bay Comment
  CHSC26084  Salicornia bigelovii James Henrickson 1970-9-5 5314 Orange 3 1/2 miles NW of Huntington Beach, 1/4 mile SE of Warner Ave. in Lower Littoral zone of Bolsa Chica Salt Marsh along outer Bolsa Bay. 0 Comment
  UCR143513  Salicornia bigelovii David Michener 1934-8-1 s.n. Orange Southern Coast, Newport Bay, near north end of bridge connecting Balboa Island with mainland 3 Comment
  UCSB36213  Salicornia bigelovii Ferren, Wayne 1980-8-27 Orange W side of Backbay Drive ca. 1.5 km. NE of Rt. 1, along channel of Newport Backbay, Newport Beach Comment
  UCSB44173  Salicornia pacifica Henneman, J. 1977-5-21 Orange Newport Back Bay 3 Comment
  UCSB59704  Salicornia pacifica Tilforth, C. 1975-9-6 Orange Northeast shoreline of Upper Bay, Newport Beach Comment
  UC536964  Salicornia virginica Lawrence M. Booth 1932-6-9 1182 Orange Newport Bay Comment
  UCR240096  Salicornia virginica Dick Newell 2012-9-29 300 Orange South Coast, Newport Beach, Back Bay Drive at Big Canyon parking area 2 Comment
  RSA70037  Salicornia virginica F. W. Peirson 1924-8-29 5081 Orange 2.5 miles from Balboa on road inland along creek. Comment
  CAS-BOT-BC129737  Salix bonplandiana Carl B. Wolf 1932-4-8 2949 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Canyon. 120 Comment
  POM177842  Salix exigua Marcus E. Jones 1930-3-3 26532 Orange Santa Ana Mountains. Comment
  POM362552  Salix exigua Albert J. Perkins 1920-6-12 s.n. Orange Near Serra. Comment
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Nov 1 2013
  RSA4247  Salix exigua Carl B. Wolf 1932-4-15 2953 Orange Rancho Santa Ana, near Santa Ana River and south of pear orchard, Santa Ana Canyon. 122 Comment
  UCR247916  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
  UC536932  Salix exigua var. hindsiana Lawrence M. Booth 1932-6-9 1177 Orange 1 mi from ocean Santa Ana R. Comment
  CAS-BOT-BC108132  Salix gooddingii Carl B. Wolf 1932-4-15 2955 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Canyon 120 Comment
  CAS-BOT-BC108142  Salix gooddingii L. R. Abrams 1913-7-14 s.n. Orange Santa Ana River between Orange and Anaheim Comment
  RSA5308  Salix gooddingii B. D. Stark 1933-1-7 4509 Orange Rancho Santa Ana, river bottom below ranch houses. 122 Comment
  RSA6451  Salix gooddingii Carl B. Wolf 1932-4-15 2955 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Canyon. 120 Comment
  UCR138389  Salix gooddingii Scott D. White, Brian Leatherman 1997-6-12 5324 Orange Santa Ana Mtn. foothills, E of San Juan Capistrano: San Juan Creek between Hwy 74 bridge and Mission Vieja site, i.e. c. 2-4 mi east of Hwy I-15/Hwy 74 junction 76 Comment
  UCR193010  Salix gooddingii A. C. Sanders 2008-5-28 35446 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Bee Flat at mouth of Limestone Canyon 264 Comment
  RSA0034815  Salix hindsiana var. parishiana Marcus E. Jones 1930-3-3 s.n. Orange Santa Ana Mountains. Comment
  LA208694  Salix laevigata Carl Hedin; Joseph Ewan 1932-7-9 7680 Orange Santa Ana River 8 km below Prado (Rincon) [Area 7] Comment
  RSA725464  Salix laevigata Fred M. Roberts 2007-8-6 6553 Orange San Joaquin Hills: Laguna Beach, Laguna Cyn. on east side of Laguna Cyn. Rd. adj. to dog park, 1.2 km S (air) from El Toro Road and 1.8 km WSW Moulton Survey Mk. 52 Comment
  RSA735353  Salix laevigata R. H. McArthur 1934-3-1 s.n. Orange Santa Ana River at 1st Street. Comment
  UC537282  Salix laevigata Philip A. Munz and L. M. Booth 1932-12-16 1380 Orange 1/2 mi from ocean Santa Ana R. (w of Wolfe's Ranch) Comment
  RSA0070788  Salix laevigata CNPS Accuracy Assessment Team 2014-4-28 1134 Orange Black Star Canyon. Comment
  IRVC8761  Salix lasiolepis Charles W. Sexton 1965-2-12 s.n. Orange Newport Beach. Southern Coastal Comment
  LA210190  Salix lasiolepis Lawrence M. Booth; 1932-12-31 1384 Orange Newport Bay Comment
  RSA357006  Salix lasiolepis Robert F. Thorne 1975-4-6 45569 Orange San Joaquin Marsh: Near Irvine and coast. Comment
  RSA92623  Salix lasiolepis F. W. Peirson 1924-2-9 4521 Orange Between Wintersberg and the sea. Comment
  SEINET4094138  Salix lasiolepis E. D. Crow 1929-1 257 Orange Santa Anna Mountains. Southern California. Comment
  UCR239223  Salix lasiolepis var. lasiolepis Fred M. Roberts 2012-4-24 7507 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
  CAS-BOT-BC126307  Salix sessilifolia Carl B. Wolf 1932-7-7 3845 Orange Rancho Santa Ana, along ditch on Bixby Ave., 1 km. west of Hansen Road, near town of Los Alamitos 7 Comment
  CAS-BOT-BC176841  Salsola australis Ira L. Wiggins 1965-10-27 20306 Orange Along Brea Canyon Road just SW of Los Angeles County Line Comment
  CDA3225  Salsola tragus Patrick, Mackessy 1957-6-27 Orange Santa Ana River. 0 Comment
  RSA562812  Salvia apiana Steve Boyd, T. S. Ross 1992-5-20 7484 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of the wilderness in Lucas Canyon, along foot trail upstream from end of old roadgrade to upper homestead (corrugated steel building). 350 Comment
  RSA658204  Salvia apiana T. A. Daubert 1991-5-19 660 Orange Tucker Wildlife Sanctuary, Modjeska Canyon inside sanctuary. Comment
  UCR193060  Salvia apiana A. C. Sanders, Fred M. Roberts 2008-6-17 35502 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, Windy Ridge Rd., saddle on ridge at head, above the Eastern Transportation Corridor 400 Comment
  IRVC26432  Salvia californica Mark A. Elvin 2004-2-22 3152 Orange UCI Arboretum Southern Coastal 15 Comment
  UC1607999  Salvia columbariae Donald G. Nelson 1935-3-23 177 Orange Hills n of Fullerton (Chia); Chia Comment
  UCR188943  Salvia leucantha Robert DeRuff 2006-1 564 Orange Newport Beach, Upper Newport Bay, near end of 23rd Street on west side of the Bay 11 Comment
  JEPS62728  Salvia leucophylla Frank W. Peirson 1927-6-20 7349 Orange Rancho Santa Ana; Mrs. Bryant's 182 Comment
  RSA550594  Salvia leucophylla Fred M. Roberts 1989-4-26 4320 Orange Santa Ana Mtns.: Lower Blind Canyon near mouth, 9.2km SW Sierra Peak, 1.0km N Irvine Lake spillway. 213 Comment
  CAS-BOT-BC229978  Salvia mellifera C. L. Hitchcock; C. V. Muhlick 1964-3-17 23066 Orange 8 miles e. of Yorba Linda, Santa Ana Canyon Comment
  HSC25248  Salvia mellifera Richard Spjut 1972-2-21 2217 Orange Santa Ana Mtns., Cleveland National Forest, along Hwy. 74 305 Comment
  RSA590946  Salvia mellifera Fred M. Roberts 1991-5-2 4779 Orange San Joaquin Hills: Laguna Canyon, Laguna Laurel, just west of Laguna Canyon Road, c. 2 km N junction El Toro Road, 4.5 kilometers E Signal Peak. 110 Comment
  UCLA69968  Salvia mellifera Martha Hilend Apr 1921 45 Orange Fullerton, Little Bear Lake; Orange County Park Comment
  UCR209372  Salvia mellifera Fred M. Roberts, Linda Farley 2008-3-28 6818 Orange Santa Ana Mountains, Upper Weir Canyon, Irvine Ranch Conservancy, east fork along ridge just west of SR 241, 3.4 km east of Robber's Peak 437 Comment
  UCR220026  Salvia mellifera 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
  UCR239634  Salvia mellifera Fred M. Roberts 2012-4-24 7502 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
  UCR83406  Salvia mellifera Jan West 1994-4-5 s.n. Orange Upper Bluebird Canyon, SE of Laguna Beach, at a park in the hills east of the head of Bluebird Canyon Road and east of housing developments. Comment
  IRVC26757  Sambucus mexicana Peter A. Bowler 2003-4-26 s.n. Orange UC San Joaquin Freshwater Marsh Reserve; along marsh road. Southern Coastal 6 Comment
  JEPS12740  Sambucus mexicana L. M. Booth 1932-5-27 1127 Orange Newport Bay Comment
  POM201930  Sambucus mexicana L. M. Booth 1932-5-27 s.n. Orange Newport Bay. Comment
  RSA3156  Sambucus mexicana C. B. Wolf 1931-7-25 2293 Orange Above irrigation canal, just north of Mexican houses. Rancho Santa Ana. 122 Comment
  RSA734894  Sambucus mexicana A. C. Sanders 2008-5-28 35431 Orange Lomas de Santiago, Bee Flat at mouth of Limestone Canyon 264 Comment
  UCR193789  Sambucus mexicana A. C. Sanders, Fred M. Roberts 2008-7-3 35691 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along Windy Ridge Rd. at hairpin turn/road junction below huge sandstone boulder (visible on Google Earth), 1.2 mi. SE of Walnut Canyon Reservoir 285 Comment
  RSA48925  Sanicula arguta P. A. Munz 1949-5-26 13378 Orange Head of Sierra [Freemont] Canyon, Santa Ana Mountains. 732 Comment
  RSA588796  Sanicula arguta Fred M. Roberts, Dave Bontrager 1990-4-18 4564 Orange Rancho Mission Viejo: ridge between Christianitos and Gabino Canyons (Riverside Cement Lease Holding), 5.5 km SE Playa Survey Marker. 152 Comment
  RSA0012752  Sanicula crassicaulis Fred M. Roberts 2012-5-10 7577 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
  UC1006699  Sanicula crassicaulis C. Ritchie Bell 1953-2-22 1387 Orange near sw edge of San Clemente State Park, above old dam San Clemente State Park Comment
  UCD127973  Sanicula crassicaulis P. B. Kennedy 1925-1-12 s.n. Orange Irvine Range. Comment
  UCR97818  Sanicula crassicaulis Scott D. White 1997-3-28 4832 Orange Santa Ana Mountains, Above Modjeska Canyon, proposed water tank site. 488 Comment
  RSA731972  Sanicula crassicaulis var. crassicaulis A. C. Sanders, Fred M. Roberts 2008-4-8 34768 Orange Lomas de Santiago, Loma Ridge, SSE of Santiago Reservoir on Loma Ridge Spur Rd., above Dripping Springs Loop Rd. 457 Comment
  RSA734890  Schedonorus arundinaceus 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 blow Modjeska Canyon confluence. 345 Comment
  UCR193064  Schinus molle A. C. Sanders, Fred M. Roberts 2008-6-17 35473 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Agustine staging area near Limestone Canyon Rd. gate at Santiago Cyn Rd. 260 Comment
  RSA731915  Schoenoplectus americanus Fred M. Roberts, Sandy Leatherman 2007-11-27 6664 Orange Anaheim: Santa Ana River, Santa Ana Canyon, just west of Horseshoe Bend on S side of E La Palma Ave., about 0.3km E Weir Cyn. Rd. bridge. 100 Comment
  RSA735750  Schoenoplectus americanus A. C. Sanders, Fred M. Roberts 2008-6-17 35493 Orange Lomas de Santiago, West Loma Ridge Spur Road c. 0.8 mi SW of Irvine Lake and 0.9 mi. SE of Sheriff s Training Facility, just east of Hwy 241 280 Comment
  CHSC35482  Schoenoplectus californicus Thomas Eakle 1971-5-28 145 Orange Ca. 2 mi. NE of Newport at Newport Bay saltmarsh. Comment
  RSA184313  Schoenoplectus californicus L. M. Booth 1932-8-4 s.n. Orange Santa Ana River, one mile from sea - sea level. 0 Comment
  RSA793256  Schoenoplectus californicus Robert F. Thorne 1984-1 s.n. Orange Newport Back Bay Comment
  UCR139138  Schoenoplectus californicus Scott D. White, Brian Leatherman 1997-6-12 5331 Orange Santa Ana Mtn. foothills, E of San Juan Capistrano: San Juan Creek between Hwy 74 bridge and Mission Vieja site, i.e. c. 2-4 mi east of Hwy I-15/Hwy 74 junction 76 Comment
  RSA718961  Schoenoplectus maritimus Fred M. Roberts, Robert L. Allen 2006-10-8 6419 Orange San Juan Capistrano: San Juan Creek Flood Control Channel, c.a. 0.2 to 0.3km N Stonehill Dr. bridge and 1.1km SSE Marco Forster Jr. High Sch. 4 Comment
  POM50487  Schoenoplectus maritimus Helen D. Geis 501 Orange Peat Lands Comment
  RSA97  Schoenoplectus maritimus J. T. Howell 1927-6-30 237 Orange Bryant Ranch near Long Beach. 15 Comment
  IRVC29809  Scirpus californicus Laura D. Lyons, Mark A. Elvin 2006-9-23 423 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
  UCR207546  Scirpus cernuus O. F. Clarke, Roger E. Reinke 2004-11-14 s.n. Orange South Coast, Newport Back Bay 3 Comment
  SD245180  Scirpus microcarpus R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49574 Orange Santa Ana Mountains: San Juan Canyon at lower Picnic Camp, just below Ortega Highway (74). Comment
  RSA647958  Scrophularia californica Mark Breidenbaugh, Caralisa Breidenbaugh 1992-5-15 25 Orange 1/2 mile south of Chino Hills State Park. 168 Comment
  RSA751325  Scrophularia californica A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35285 Orange Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir. 300 Comment
  UC1125690  Scrophularia californica A. Lewis Apr 1934 385 Orange Silverado Canyon; Cleveland Nat'l Forest, Corona Quadrangle Comment
  UCR191024  Scrophularia californica A. C. Sanders, Fred M. Roberts 2008-4-22 35014 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
  UCR234150  Scrophularia californica Dick Newell, Judy Booth 2012-3-30 240 Orange Peninsular Range; Santa Ana Mtns., Maple Springs Road, Cleveland National Forest 258 Comment
  POM4221  Scrophularia californica subsp. floribunda Philip A. Munz 1918-5-4 2199 Orange Laguna Canyon. Comment
  JEPS62864  Scutellaria tuberosa Mary Alice King 1908-4-19 Orange Santa Ana Mountains Comment
  UCR193014  Searsia pendulina A. C. Sanders, Fred M. Roberts 2008-6-17 35500 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, Windy Ridge Rd., saddle on ridge at head, above the Eastern Transportation Corridor 400 Comment
  UCD170928  Sechium edule D. E. Bramlet 2005-10-13 3916 Orange South Coast: end of Kline Drive, 650 ft south of Orchard Drive in Santa Ana Heights; 2600 ft SW of the S end of John Wayne Airport. 15 Comment
  RSA678518  Selaginella asprella Fred M. Roberts, Kirsten Winter, Leanne Naue 1997-6-5 5041 Orange Santa Ana Mtns.: Modjeska Peak, above Main Divide Truck Trail, 0.5km (aerial) W summit. 1483 Comment
  RSA15  Selaginella bigelovii John Thomas Howell 1927-7-24 473 Orange Claymine Canyon, near Sierra Peak 167 Comment
  RSA637492  Selaginella bigelovii Valerie Sosa, LeRoy Gross 1999-6-8 505 Orange Santa Ana Mountains: Santiago and Modjeska Canyons, above Tucker Wildlife Sanctuary, above the town of Modjeska 518 Comment
  RSA651616  Selaginella bigelovii J. Bruce Smiley 1948-2-9 s.n. Orange In Santiago Creek, 7 miles east of Orange. Comment
  RSA703882  Selaginella bigelovii Fred M. Roberts, D. E. Bramlet 2004-7-30 6079 Orange Rancho Mission Viejo: Donna O Neill Land Conservancy, Western slopes of Cristianitos Cyn., 0.25km W Sycamore Gate and Cristianitos Road. 151 Comment
  RSA749437  Selaginella bigelovii Fred M. Roberts 2008-4-14 6891 Orange Santa Ana Mtns.: Upper Weir Cyn., east fork, 3.4 km E Robbers Peak, Irvine Ranch Conservancy. 433 Comment
  UC534969  Selaginella bigelovii John Thomas Howell 1927-7-22 2834 Orange Claymine Canyon; Santa Ana Mts. 182 Comment
  OBI34978  Selaginella bigelovii John Thomas Howell 1927-7-22 2834 Orange Claymine Canyon, Santa Ana Mts., Orange County 183 Comment
  CAS-BOT-BC363479  Senecio californicus P. C. Everett 1935-3-15 6294 Orange Rancho Santa Ana, Santa Ana Canyon near Corner Post 3938 182 Comment
  RSA17009  Senecio californicus P. C. Everett 1936-3-19 7732 Orange Santa Ana Botanic Garden. 183 Comment
  RSA542662  Senecio californicus Bill O'Connell 1991-5-31 4 Orange San Joaquin Hills: Pelican Hill, west side 190 Comment
  UCR203981  Senecio californicus Fred M. Roberts 2008-3-12 6719 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
  IRVC895  Senecio californicus M. Savage 1965-4-6 Orange Irvine Terrace. Newport Beach Comment
  RSA5429  Senecio flaccidus var. douglasii B. D. Stark 1933-1-3 s.n. Orange Rancho Santa Ana near pear orchard. 122 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
  UCR149494  Senecio linearifolius Scott D. White, Michael Honer 2004-5-17 10401 Orange South Coast, City of Laguna Niguel. Ridges and open slopes directly N of the intersection of Crown Valley Parkway and Pacific Island Dr 183 Comment
  OBI64679  Senecio linearifolius var. linearifolius Scott D. White 2004-7-7 10606 Orange South Coast: Laguna Niguel (Dana Point: T8S R8W S9 Comment
  RSA0127340  Senecio vulgaris Fred M. Roberts 2016-3-17 8022 Orange San Joaquin Hills: City of Irvine, Ridge between Coyote Canyon and Bommer Canyon along Turtle Ridge Trail, 0.6 km NNE Signal Peak and 1.1 km SW Cattle Camp. 314 Comment
  CAS-BOT-BC364599  Senecio vulgaris Carl B. Wolf 1932-6-28 3766 Orange Bryant Ranch, along Western half of North boundary of 40 acre Valencia Orange Grove; Bryant Ave. & Hansen Rd. Comment
  CAS-BOT-BC364604  Senecio vulgaris Ira L. Wiggins 1966-2-18 20447 Orange Roadside near end of county road, 1/2 mi. W. of entrance to Rancho Santa Ana Comment
  UCD135862  Senecio vulgaris Ira L. Wiggins 1966-3-31 20569 Orange Shoulder of Associated Road, 200 m. S of the Imperial Highway, Fullerton. Comment
  IRVC24099  Senna multiglandulosa Fred M. Roberts, R. L. Allen 1985-9-3 2201 Orange Lower San Juan Canyon, Hwy 74, c.a. 14.4km NE San Juan Capistrano by road, Casper's Regional Park 184 Comment
  IRVC29813  Sesuvium verrucosum Laura D. Lyons, Mark A. Elvin 2006-9-23 427 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
  SEINET3562515 Image available Setaria Janet Wingate 1994-4-2 s.n. Orange Garden Grove Boulevard and Beach Boulevard, Garden Grove. Comment
  RSA724101  Setaria adhaerens R. E. Riefner 2006-8-6 6 -373 Orange City of Huntington Beach, Atlanta St. at Surge Ln. 11 Comment
  RSA0027437  Setaria parviflora Fred M. Roberts 2012-7-18 7676 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
  UC729940  Setaria parviflora Carl B. Wolf 1932-6-13 3725 Orange Malvern & Nicholas Aves. Fullerton 53 Comment
  CAS-BOT-BC243633  Setaria pumila J. B. Anderson 1966-5-2 621 Orange Along Newport Freeway at 17th Street, Santa Ana Comment
  RSA588729  Sidalcea malviflora Fred M. Roberts 1990-5-7 4601 Orange Rancho Mission Viejo: Ridge S of Blind Canyon and E of Christianitos Canyon, TRW Lease Holding, 5.0 km NE Clemente Survey Marker 152 Comment
  RSA682910  Sidalcea malviflora Scott D. White, Amanda Duchardt 2003-5-1 9159 Orange Santa Ana Mountain Foothills: Slopes above west side of Trampas Canyon. 107 Comment
  UCR241076  Sidalcea malviflora Dick Newell, Don Millar 2013-4-30 328 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago; lower Hangman's Tree Canyon, 0.1 mi. west of Santiago Canyon Rd. 368 Comment
  UCSB47611  Sidalcea malviflora Roberts, Fred 1980-5-3 Orange 0.1km NE Falcon Group Camp, Santa Ana Mtns. 1012 Comment
  UCR151026  Sidalcea malviflora subsp. sparsifolia Scott D. White 1997-5-6 5040 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
  IRVC26690  Sidalcea malviflora subsp. sparsifolia Mark A. Elvin 2004-4-4 3232 Orange UCI Arboretum Southern Coastal 15 Comment
  SEINET3132581  Sidalcea neomexicana subsp. thurberi L. Abrams 1903-4-17 3257 Orange Low Ground Between Tustin & Myford Comment
  CAS-BOT-BC434368  Sidotheca trilobata P. C. Everett 1935-6-19 7224 Orange Santa Ana Mts., main divide motorway 1 5/10 mi. below summit of Santiago Peak, E. slope 1310 Comment
  RSA732147  Silene antirrhina A. C. Sanders, Fred M. Roberts 2008-4-22 35011 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
  IRVC17031  Silene gallica E. McRae 1965-4-8 Orange Costa Mesa Comment
  UCR192495  Silene gallica A. C. Sanders, Fred M. Roberts 2008-3-25 34563 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  CAS-BOT-BC386896  Silene gallica Ira L. Wiggins 1966-3-19 20536 Orange on Irvine Ranch, southeast of U.C. Irivine. Comment
  RSA286  Silene gallica J. T. Howell 1928-2-25 834 Orange Near Bee Canyon, Rancho Santa Ana. 152 Comment
  UCSB50630  Silene laciniata subsp. laciniata Roberts, Fred 1982-7-20 Orange Santa Ana Mtns.; Main Divide Extension, 3.0 km. by road NE Falcon Group camp; 3.4 km. E Los Pinos Peak 1027 Comment
  RSA438885  Silene laciniata subsp. major M. B. Dunkle 5377 Orange San Juan Canyon Comment
  RSA438887  Silene laciniata subsp. major M. B. Dunkle 1934-6-18 3997 Orange San Juan Canyon 305 Comment
  RSA438888  Silene laciniata subsp. major M. B. Dunkle 1933-5-30 3375 Orange Santa Ana Canyon. Comment
  RSA659992  Silene laciniata subsp. major Steve Teh 1994-5-20 27 Orange Modjeska Grade rd. 1/2 mile on trail above fire road. 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
  UCR150906  Silene verecunda subsp. platyota Valerie Soza, LeRoy Gross 1999-6-10 514 Orange Santa Ana Mountains, Southwestern extension of Modjeska Peak, off dirt road to summit, off Main Divide Road 1524 Comment
  UCR192217  Silybum marianum A. C. Sanders, Fred M. Roberts 2008-5-6 35269 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, upper Limestone Canyon, 2.9 mi. NNW of El Toro 379 Comment
  SD232231  Sinapis arvensis Scott D. White, Amanda Duchardt 2003-3-27 8849 Orange Santa Ana Mountain Foothills: Canyon bottom and west facing slopes above Canada Gobernadora. 91 Comment
  CAS-BOT-BC75234  Sisymbrium irio L. R. Abrams 1936-4-5 13714 Orange Rancho Santa Ana, Botanic Garden. Santa Ana Canyon. Comment
  JEPS14822  Sisymbrium irio G. Byron Deshler 1929-2-23 Orange Yorba Linda Comment
  RSA735968  Sisymbrium officinale Scott D. White, Justin Wood 2008-4-22 11906 Orange Telegraph Canyon Road, E of Carbon Canyon Regional Park. 152 Comment
  RSA131  Sisyrinchium bellum J. T. Howell 1927-7-19 445 Orange Santa Ana River bottom, Rancho Santa Ana. 152 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
  OBI2801  Sisyrinchium bellum T. Mills 1967-4-30 56 Orange Irvine Park 213 Comment
  RSA539347  Sisyrinchium bellum Fred M. Roberts 1987-4-3 3348 Orange Irvine: San Joaquin Hills, Central Shadey Canyon, 2.8 kilometers NE Signal Peak. 109 Comment
  RSA651593  Sisyrinchium bellum D. Geisinger, R. Miller, E. Baldwin 1959-3-19 s.n. Orange Santa Ana Canyon Comment
  IRVC20989  Sitanion jubatum Karlin G. Marsh 1981-6-15 s.n. Orange Divide between Weir and Gypsum Canyons. Santa Ana Mountains Comment
  UCSB48043  Solanum americanum Roberts, Fred 1981-9-26 Orange Newport Beach: Pacific Coast Highway, 0.3km W Newport Blvd.; 0.4km SE Bench Mark 10 3 Comment
  JEPS12101  Solanum douglasii Alice King 1908-3-1 Orange Santa Ana Comment
  POM8757  Solanum douglasii Philip A. Munz, R. D. Harwood 1920-4-24 3757 Orange Santa Ana Mtns. Sierra [Freemont] Canyon. 366 Comment
Read comments
Sep 17 2011
  UCR193021  Solanum douglasii A. C. Sanders, Mitch Provance 2008-5-20 35417 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago area, Santiago Creek Canyon, c. 3/4 mile below Modjeska Canyon confluence 355 Comment
  UCR224154  Solanum douglasii Fred M. Roberts 2008-5-27 7001 Orange South Coast, Dana Point Headlands, CNLM Preserve, along north slopes above Dana Strand Beach, 0.8 km west norhwest of Marine Institute, Dana Point Harbor 75 Comment
  RSA422440  Solanum douglasii Claire Kibbe 1936-07 19966 Orange Santa Ana Canyon. Comment
  RSA733737  Solanum elaeagnifolium Unspecified s.n. Orange Costa Mesa. Comment
  UCR237801  Solanum esculentum Mark A. Elvin, Peter A. Bowler 2004-6-5 s.n. Orange South Coast, buffer zone of San Joaquin Marsh, UCI campus SSE of intersection of Jamboree Blvd. and Campus Dr. 2 Comment
  UCR136650  Solanum nigrum F. W. Peirson 1924-2-9 4523 Orange South Coast, between Wintersburg and the sea 9 Comment
  POM212351  Solanum umbelliferum Carl B. Wolf 1931-3-6 1862 Orange North of base of Trabuco Modjeska Grade, west slope of Santa Ana Mts. 305 Comment
  RSA427386  Solanum umbelliferum A. M. Johnson 1934-4-15 4401 Orange Carmen's Laguna Beach. Comment
  RSA638973  Solanum umbelliferum Valerie L. Soza, LeRoy Gross 1999-6-7 494 Orange West side of Modjeska Peak, along Main Divide Road. 1448 Comment
  RSA708283  Solanum umbelliferum Scott D. White, Jennifer H. Jones 2005-3-31 10856 Orange South Coast: City of Laguna Beach. 549 Nyes Place. Proposed home site on ca. 0.5 acre. 91 Comment
  RSA733735  Solanum umbelliferum Jeanne Paxton 1934-2-25 s.n. Orange Sugar Loaf Canyon, Arch Beach Comment
  UC1125059  Solanum umbelliferum A. Lewis 1934-2-1 266 Orange Santa Ana Canyon 152 Comment
  RSA0020572  Solanum umbelliferum Keith E. Hoffmaster 1927-4-8 534 Orange Santa Ana Mountains. Comment
  UC537016  Solidago confinis L. M. Booth 1932-12-26 1383 Orange Newport Lagoon Comment
  RSA696853  Solidago occidentalis J. R. Bruff 1930-10-19 14 Orange Santa Ana River bed. Comment
  LA204214  Solidago spectabilis P. P. Kennedy; 1912-8-2 1889 Orange Hunter Creek 1828 Comment
  UCSB52424  Solidago velutina subsp. californica Roberts, Fred 1982-9-15 Orange Rancho Mission Viejo: 6.4km ENE San Juan Capistrano by road on Rte. 74; 0.9km NNE Viejo Peak 115 Comment
Read comments
Dec 12 2018
  POM202167  Sonchus oleraceus L. M. Booth 1932-6-15 1193 Orange Marsh border East of Huntington Beach. 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
  UCR223419  Sonchus oleraceus Dick Newell, Don Millar 2011-3-1 065 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Hicks Canyon Haul Road, above Jeffrey Rd. and below Hwy 241 crossing 175 Comment
  POM202168  Sonchus oleraceus L. M. Booth 1932-7-21 1297 Orange Near Sunset Beach, Anaheim Marsh. Comment
  RSA647892  Sonchus oleraceus Mark Breidenbaugh, Caralisa Breidenbaugh 1992-5-24 30 Orange 1000 ft. northwest of Chino Hills State Park Boundary. 243 Comment
  RSA688866  Sonchus oleraceus Fred M. Roberts 2003-5-1 5669 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
  IRVC14875  Sorghum bicolor Gordon A. Marsh, Karlin G. Marsh 1976-7-8 s.n. Orange Santa Ana Mtns: Lower San Juan Picnic Grounds near Hwy 74 [Ortega Hwy]. Peninsular Ranges Comment
  IRVC15381  Sorghum halepense J. B. Anderson 1966-5-2 634 Orange MacArthur Blvd. near the Newport Freeway. southern coastal Comment
  UCSB48224  Sorghum halepense Roberts, Fred 1981-6-24 Orange San Juan Capistrano; 3.2 km. S. Saddleback Community College on Rancho Viejo Road 42 Comment
  CDA780  Sparganium eurycarpum subsp. eurycarpum E. Dudley 1948-7-22 Orange Santa Ana, Flood Control Ditch. 0 Comment
  CAS-BOT-BC235380  Spartina foliosa Joseph Andorfer Ewan 1932-7-28 7709 Orange East end of Newport Bay Comment
  HSC24430  Spartina foliosa James Henrickson 1970-7-24 5024 Orange 2.5 mi. NW of Huntington beach along south channel of Inner Bolsa Bay, Bolsa Chica Salt Marsh 0 Comment
  HSC24440  Spartina foliosa Christopher Davidson 1970-7-27 1505 Orange Bolsa Chica salt marsh, 1 mi. S of Warner Ave., opposite Seal Beach Comment
  RSA483172  Spartina foliosa F. R. Fosberg 1930-7-10 S 3193 Orange Anaheim Landing. [Los Angeles Co. on label] Comment
  CSUSB1332  Spartium junceum Cesareo Perez 1971-5-4 Orange South Mesa Drive and Lemon Street in Villa Park Comment
  IRVC2459  Spartium junceum John Schram 1965-5-1 s.n. Orange Santa Ana Mtns; Hwy 74, 20 mi. E from San Juan Capistrano. Peninsular Ranges Comment
  RSA748820  Spartium junceum G. Gust, L. Nye 2005-3-12 565 Orange Cleveland National Forest, on Hwy 74 ca. 0.5 m W of county boundary with Riverside at a pullout. 400 Comment
  SD152845  Spartium junceum Steve Boyd, Tim Ross 1992-5-20 7459 Orange San Mateo Canyon Wilderness Area; western edge of the wilderness in Lucas Canyon. 305 Comment
  SEINET10487736  Spartium junceum David B. Dunn 1971-8-13 Dunn 18128 Orange Cultivated plants vicinity of laguna beach so called scotch broom. Comment
  RSA0097838  Spergularia macrotheca F. W. Peirson 1923-3-26 4289 Orange Canada Salada. 0 Comment
  CAS-BOT-BC390310  Spergularia macrotheca var. macrotheca LeRoy Abrams 1903-4-17 3258 Orange Between Tustin and Myford Comment
  CAS-BOT-BC390853  Spergularia marina Carl B. Wolf 1932-7-2 3817 Orange Carbon Canyon, 1/8 mi. below La Vida Springs 213 Comment
  CAS-BOT-BC390855  Spergularia marina John Thomas Howell 1927-6-30 2617 Orange 7 miles east of Long Beach 15 Comment
  RSA0098518  Spergularia marina D. L. Crawford 1916-7-26 s.n. Orange Aliso Canyon. Comment
  UCR20401  Spergularia rubra Albert J. Perkins 1926-4-27 s.n. Orange Pacific slope, City of Santa Ana, in a yard. Comment
  RSA0011085  Spergularia salina James Snow 1932-1 6 Orange Bryant Ranch, near Long Beach. Station no. 4. Comment
  RSA0098710  Spergularia villosa L. M. Booth 1932-5-24 1089 Orange Near Bay Shore Camp, Newport Bay. Comment
  POM1127  Sporobolus airoides I. M. Johnston s.n. Orange Laguna Beach. Comment
  RSA0028740  Sporobolus indicus R. E. Riefner Jr. 2004-12-12 4 -553 Orange City of Irvine, near Irvine Valley College, strawberry fields along Jeffrey Road near Irvine Center Drive. 37 Comment
  RSA691958  Stachys ajugoides Scott D. White, Michael Honer 2003-4-10 9001 Orange Santa Ana Mountain Foothills: Ridges & east-facing canyons above Trampas Canyon. 122 Comment
  UC537162  Stachys ajugoides var. ajugoides Lawrence M. Booth 1932-6-4 1146 Orange Newport Lagoon Comment
  UCR144124  Stachys rigida Scott D. White, Amanda Duchardt 2003-4-10 9001 Orange Santa Ana Mountians Foothills, Ridges and E-facing canyons above Trampas Canyon 152 Comment
  RSA0125886  Stachys rigida subsp. quercetorum Fred M. Roberts Jr. 2012-5-10 7573 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
  RSA131400  Stachys stebbinsii E. K. Balls 1958-6-27 23281 Orange 4.4 miles from Silverado (gate), Silverado Canyon, Santa Ana Mountains. 1021 Comment
  SD248452  Stachys stebbinsii A. C. Sanders, Kent Beaman 2011-9-27 39902 Orange Peninsular Range; Santa Ana Mountains: Maple Springs Truck Trail above Silverado, at major (dry) stream crossing, 3.95 km NNW (347a^z) of Santiago Peak (Santiago Peak 7.5'Q) 903 Comment
  RSA0106593  Stebbinsoseris heterocarpa Scott D. White 1998-3-18 6213 Orange UCI Campus: Site of proposed Research Park, Southwest of main campus circle, ca. halfway between Berkley Ave. and new Freeway (Bonita Cyn.). Plains dissected by a series of gullies. 37 Comment
  UCSB52928  Stebbinsoseris heterocarpa Roberts, Fred; Marsh, G. 1983-3-30 Orange UC Irvine Ecological Preserve, 1.6 km. SSW UCI campus center 87 Comment
  RSA0119681  Stellaria media Fred M. Roberts 2015-3-10 7924 Orange San Joaquin Hills: Niguel Hill, on ridge above Aliso Canyon ear end of Ceanothus Drive (Hangover House property), 0.4 km WNW summit Aliso Peak. 122 Comment
  RSA737532  Stellaria media Fred M. Roberts 2008-3-12 6730 Orange Dana Point: Dana Point Headlands CNLM Preserve, western side, c.a. 0.8 km W Marine Institute (Dana Point Harbor). 50 Comment
  UCR247541  Stephanomeria cichoriacea Dick Newell, Judy Booth 2013-8-25 338 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, Maple Springs Rd., 2.1 air miles due east of lower Maple Springs gate 832 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
  UCD136245  Stephanomeria diegensis L. D. Gottlieb 1968-8-14 6860 Orange on Route 74, immediately west of Lower San Juan Campground. 411 Comment
  RSA232227  Stephanomeria exigua subsp. coronaria James Henrickson 1970-7-25 5044 Orange 2.5 miles NE of Huntington beach, 1 mile SE of Warner Ave. on sandy slope of E. Pacific Coast Hwy. at border of Bolsa Chica Salt Marsh. 0 Comment
  RSA719419  Stephanomeria exigua subsp. exigua Fred M. Roberts, Lee Ann Caranza 2006-10-25 6459 Orange Dana Point Headlands south of Margarite Drive, 0.6km W Marine Institute and 1km SW Cook Sch. 58 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
  SD144498  Stipa miliacea Scott D. White 1997-3-28 4826 Orange Santa Ana Mtns: Above Modjeska Canyon: along Harding Cyn Truck Trail, near Modjeska Cyn Rd and wash crossing. 424 Comment
  LA9459  Stipa pulchra LeRoy Abrams; 1903-4-18 3269 Orange Trabuco canyon, Capistrano Comment
  UCR191474  Stipa pulchra A. C. Sanders, Fred M. Roberts 2008-4-8 34741 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, head of Hicks Canyon, S of Santiago Reservoir 351 Comment
  UCR192110  Stylocline gnaphaloides A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35311 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along fire line/bulldozer cut, c. 1.5 mi. east of Walnut Cyn Reservoir 346 Comment
  CAS-BOT-BC422882  Stylomecon heterophylla P. A. Munz 1918-5-4 2171 Orange Laguna Beach Region. Laguna Canon [Canyon] Comment
  UCR58633  Styrax officinalis var. redivivus Reid Moran, D. Axelrod, Bob Smart 1975-7-18 22599 Orange Santa Ana Mtns., N slope of ridge, upper Trabuco Canyon 900 Comment
  RSA221085  Styrax redivivus E. W. Lathrop 1966-4-18 6185 Orange 4 mi NE of Lake Irvine, Black Star Canyon, Cleveland National Forest, Trabuco District. Comment
  UCD169760  Styrax redivivus R. F. Thorne; C. W. Tilforth, E. W. Lathrop 1977-4-27 49686 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  UCD170074  Styrax redivivus R. F. Thorne; E. W. Lathrop, W. Wisura 1977-7-8 49598 Orange Santa Ana Mountains: rocky ravine tributary to San Juan Canyon, along Ortega Highway (74) about 2 miles above San Juan Fire Station. 345 Comment
  POM122884  Suaeda calceoliformis Marcus E. Jones 1924-8-26 s.n. Orange Newport. Comment
  UC971742  Suaeda calceoliformis L. M. Booth 1932-7-4 1251 Orange Newport Bay Comment
  POM48004  Suaeda esteroa I. M. Johnston 1924-8-29 s.n. Orange 2.5 miles north of Balboa. Comment
  UC537278  Suaeda esteroa L. M. Booth 1932-12-13 1373 Orange Newport Bay Comment
  UCSB36525  Suaeda esteroa Ferren, Wayne; Whitmore, S. 1980-8-27 Orange Newport Backbay, along Backbay Drive; ca. 1.5 km. NE of Rt. 1, Newport Beach Comment
  UCSB36527  Suaeda esteroa Ferren, Wayne; Whitmore, S. 1980-8-27 Orange Newport Backbay, along Backbay Drive; ca. 1.5 km. NE of Rt. 1, Newport Beach Comment
  UCSB36528  Suaeda esteroa Ferren, Wayne; Whitmore, S. 1980-8-27 Orange Newport Backbay, along Backbay Drive; ca. 1.5 km. NE of Rt. 1, Newport Beach Comment
  UCSB50567  Suaeda esteroa Tilforth, C. 1975-11-6 Orange North-east shoreline of Upper Bay, Newport Beach, Orange County Comment
  RSA438628  Suaeda moquinii Albert J. Perkins 1912-10-15 s.n. Orange Field near Newport Road, Santa Ana 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
  IRVC15182  Suaeda taxifolia H. Smith 1977-4-21 Orange Upper Newport Back Bay, east side, enter from Mesa Dr. and follow drainage ditch. Newport Beach Comment
  POM122880  Suaeda taxifolia Marcus E. Jones 1924-8-26 s.n. Orange Newport. Comment
  RSA438590  Suaeda taxifolia Joseph A. Ewan 1932-7-29 7712 Orange Newport lagoon Comment
  RSA5433  Suaeda taxifolia B. D. Stark 1932-12-9 4429 Orange 1 mi. N.W. of Laguna Beach Comment
  SEINET187091  Suaeda taxifolia Allan C. Keller 1937-11-26 Orange One mile south of Huntington Beach on U.S. Highway Alternate 101. Comment
  UCSB48379  Suaeda taxifolia Roberts, Fred 1982-4-20 Orange Anaheim Bay: Calif. Rte. 1 at southern margin of Seal Beach Naval Weapons Station; 1.7 km. SE McGaugh School; 1.1 km. W Hog Island Comment
  RSA751286  Symphoricarpos mollis A. C. Sanders, Fred M. Roberts 2008-7-3 35671 Orange Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor 365 Comment
  UCR193767  Symphoricarpos mollis A. C. Sanders, Fred M. Roberts 2008-7-3 35671 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor 415 Comment
  UCR237812  Symphoricarpos mollis Dick Newell, Chris Packer 2012-7-3 278 Orange Peninsular Range; Santa Ana Mtns., Newport Beach, Buck Gully in San Joaquin Hills, 0.23 mi. SE of Spy Glass Hill 96 Comment
  UC729886  Symphyotrichum defoliatum Carl B. Wolf 1932-7-7 3851 Orange .3 mi w, (2 mi e of sw corner of nw 40 of ne 160 of sec, Bryant Ranch Bixby Ave) Hansen Rd. Comment
  CAS-BOT-BC98281  Symphyotrichum subulatum var. parviflorum Carl B. Wolf 1932-9-16 4114 Orange 500 ft. east of San Gabriel River, bordering Los Alamitos Bay 1 Comment
  IRVC26731  Synnotia villosa Mark A. Elvin, J. Liou, J. Carpenter, J. Nguyen 2004-3-8 3165 Orange UCI Arboretum Southern Coastal 15 Comment
  IRVC938  Taraxacum officinale R. Hobson 1965-4-10 Orange Santa Ana Heights, 2431 Mesa Dr. Southern Coastal Comment
  RSA696192  Taraxacum officinale Keith E. Hoffmaster s.n. Orange Santa Ana Comment
  RSA538  Tauschia arguta J. T. Howell 1927-6-26 220 Orange Claymine Canyon near Sierra Peak 366 Comment
  UCSB47643  Tauschia arguta Roberts, Fred 1980-5-3 Orange On fire break east of Main Drive Truck Trail, 1.2 km. west of Trabuco Pk., Santa Ana Mtns. 1387 Comment
  RSA455504  Tauschia parishii Christopher David