Search Results — 2000 specimen records retrieved (1626 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
  RSA585055  Abronia maritima D. Atwood 1993-3-28 17715 Orange Bolsa Chica Ecological Reserve, California Dept. of Fish and Game. 0 Comment
  RSA69973  Abronia maritima F. W. Peirson 1921-1-9 2352 Orange Balboa, near south end of beach Comment
  UC536910  Abronia maritima Lawrence M. Booth 1932-6-15 1189 Orange se Huntington Beach; Seashore Comment
  CAS-BOT-BC229408  Abronia umbellata Peter H. Raven 1957-9-28 11374 Orange North limits of Surfside Comment
  RSA461004  Abronia umbellata William Greenberg 1939-7-20 20519 Orange Newport Beach Comment
  RSA0025969  Abronia villosa Dorothy Parsons 1932-3-28 s.n. Orange Buena Park Road. Comment
  RSA69967  Abronia villosa var. aurita F. W. Peirson 1924-8-29 5060 Orange Santa Ana Comment
  UCSB52938  Acacia cyanophylla F. M. Roberts, Jr. 1984-3-15 1260 Orange collected 1.0 km SSW and 3.0 km W, along Back Bay Drive in Newport Back Bay Bayview School and U. C. Irvine Campus Center - Newport Back Bay, Back Bay Drive, U. C. Irvine Campus Center 2 Comment
  SEINET10487478  Acacia farnesiana Charlene A. Bennett 1976-7-22 Bennett 443 Orange Cultivated and native plants collected around the San Clemente Beach area. 3 Comment
  UCR24737  Acacia podalyriifolia Sue Freeman 1966-11-4 s.n. Orange Across Hwy 1 from San Clemente Beach at the foot of a grassy shrubby cliff Comment
  UCSB57544  Acacia pycnantha Roberts, Fred 1984-6-2 Orange Capistrano Beach: El Camino Real, 0.1 km. SE Beach Rd., UTM 3701800mN, 438025mE 5 Comment
  RSA639692  Acacia redolens Scott D. White, P. De Vries 1998-12-10 s.n Orange Brea; Oil field south of Tonner Canyon and north of Lambert rd. Comment
  IRVC23426  Acer macrophyllum Fred M. Roberts 1985-7-26 2087 Orange Santa Ana Mtns: Upper trabuco Cyn, 1.3 km NE Los Pinos Pk. Peninsular Ranges 1225 Comment
  IRVC6  Acer macrophyllum Gail Howard 1965-4-28 s.n. Orange Nerport Beach, Back Bay. Southern Coastal 8 Comment
  UCSB47632  Acer macrophyllum Roberts, Fred 1980-5-3 Orange 2.2km SE Trabuco Peak, Santa Ana Mtns 1234 Comment
  SD212599  Acmispon heermannii var. heermannii A. C. Sanders, Fred M. Roberts and Michelle Balk 2006-7-20 33005 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
  RSA0014075  Acourtia microcephala Fred M. Roberts 2008-5-27 7005 Orange Lomas de Santiago: Loma Ridge, Hicks Cyn., c.a. 0.2km beyond Hicks Cyn., Gate, 2.2km WNW Bee Peak, Irvine Ranch conservancy 213 Comment
  UC1543097  Acourtia microcephala Donald G. Nelson 1936-6-5 434 Orange hills n Fullerton Comment
  UCR97813  Adenostoma fasciculatum Scott D. White 1997-3-28 4848 Orange Santa Ana Mountains, Above Modjeska Canyon, proposed water tank site. 488 Comment
  RSA553109  Adenostoma fasciculatum var. fasciculatum Fred M. Roberts 1989-5-9 4341 Orange Gypsum Canyon, west for, 5.6 km WNW Sierra Peak, 1km S Hwy 91. 146 Comment
  RSA588887  Adiantum capillus-veneris Fred M. Roberts 1990-6-4 4667 Orange Santa Ana Mts. Hall Canyon, 1.8 km NNW Mustand Spring at east edge of flying B Ranch. 421 Comment
  UCR193804  Adiantum capillus-veneris A. C. Sanders, Fred M. Roberts 2008-7-16 35836 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Dripping Springs off Limestone Canyon, c. 7.5 mi. ESE of Tustin 391 Comment
  UCR228890  Adiantum capillus-veneris Dick Newell, Don Millar 2011-7-19 211 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Dripping Springs 392 Comment
  POM256963  Adiantum jordanii W. Pequegnat 1940-6-14 s.n. Orange Yaeger's Meadow. Santa Ana Mountains 914 Comment
  IRVC21220  Adiantum jordanii Fred M. Roberts 1964-3-9 1247 Orange cyn, 2.9km NE Median Rancho Survey Mark; 1.6km NW Bench Mark 422, Wagon Wheel Regional Park 165 Comment
Read comments
Aug 1 2009
  RSA728658  Aeonium haworthii R. E. Riefner 2006-8-26 06 -377 Orange City of Laguna Beach, bluffs along Aliso Creek, N slope of Aliso Peak, Pacific Coast Hwy., E. of Aliso Beach. Aliso Beach County Park. 12 Comment
  RSA759121  Ageratina adenophora Robt. Allen 2007-7-15 s.n. Orange San Juan Canyon, Ortega Hwy, circa 1.2 road mi E of San Juan Fire Station 308 Comment
  UC1595640  Agoseris grandiflora Steve Boyd and Orlando Mistretta 1991-5-9 6198 Orange Santa Ana Mountains, crest of range at Oak Flat, SE of Sierra Peak, just W of Riverside County line. Comment
  UCR228792  Agoseris retrorsa Dick Newell, Don Millar 2011-5-8 146 Orange Peninsular Range; Santa Ana Mtns., Maple Spring Rd., Cleveland National Forest 1173 Comment
  SEINET13724198  Agropyron parishii J. L. Stevens 1969-5-14 48 Orange Fullerton, just N of CSF on State College Blvd. 183 Comment
  RSA0053702  Agrostis avenacea Chris E. True 2013-5-2 s.n. Orange Bommer Canyon, NW of Aliso Viejo. 104 Comment
  UCR193762  Agrostis viridis A. C. Sanders, Fred M. Roberts 2008-7-3 35703 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along Weir Canyon Rd. 1.2 mi. SSE of Walnut Canyon Reservoir, below Upper Blind Canyon Rd. 212 Comment
  UC729654  Ailanthus altissima E. R. Johnson May 1932 Orange Aliso Canyon; Santa Ana Canyon, Rancho Santa Ana 182 Comment
  UCSB18193  Allium haematochiton 1962-3-9 Orange 12.3 miles east of San Juan Capistrano on State 74 243 Comment
Read comments
Apr 10 2016
  JEPS56379  Allium praecox Alice King March 1908 Orange near Orange County Park Comment
  UCR192119  Allium praecox A. C. Sanders, Fred M. Roberts, Amber O'Neal, D. E. Bramlet 2008-5-9 35305 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along old dirt road, c. 1.25 mi. ESE of Walnut Cyn Reservoir 340 Comment
  RSA548870  Allium praecox Fred M. Roberts 1987-4-3 3342 Orange Irvine: San Joaquin Hills, Central Shadey Canyon, 2.8 kilometers NE Signal Hill. 103 Comment
  RSA751399  Allophyllum divaricatum R. E. Riefner Jr. 2007-6-11 07 -252 Orange Santa Ana Mts., Irvine Ranch Reserve, Fremont Canyon Conservation Easement, upper Fremont Canyon, Donaldson Ranch area. 389 Comment
  IRVC28639  Allophyllum glutinosum Mark A. Elvin, A. C. Sanders 2005-9-2 4494 Orange Mouth of Lion Cyn, just up stream from Lower San Juan Campground. Santa Ana Mtns 457 Comment
  RSA539355  Allophyllum glutinosum Fred M. Roberts, Carol A. Roberts 1988-6-9 4085 Orange Santa Ana Mountains: Modjeska Peak, 0.9km SW summit. 1542 Comment
  RSA539356  Allophyllum glutinosum Fred M. Roberts 1988-6-10 4100 Orange Modejeska Peak, 0.8 km SW summit along crest. 1548 Comment
  RSA67223  Allophyllum glutinosum Verne Grant, Alva Grant 1949-4-23 8659 Orange West entrance of Cleveland National Forest on Hywy 74. Comment
  RSA184109  Alnus rhombifolia I. L. Wiggins 1966-1 20411 Orange along immediate margin of stream above ranger station, Trabuco Canyon Comment
  RSA562817  Aloe chabaudii Steve Boyd, Timothy S. Ross 1992-5-20 7470 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of the wilderness in Lucas Canyon, about old mining habitations in side canyon. 390 Comment
  IRVC26717  Aloe striata Mark A. Elvin, J. Liou, J. Carpenter, J. Nguyen 2004-3-8 3183 Orange UCI Arboretum Southern Coastal 15 Comment
  UCR188947  Alopecurus pratensis Robert DeRuff 1988-5-14 360 Orange Newport Beach, Upper Newport Bay, at north end of Constellation Drive in the vicinity of 23rd Street on west sie of the Bay 21 Comment
  CLARK-A1528-917  Amaranthus albus Patricia A. Andrews 1975-6-26 5914 Orange Capistrano Bay Beach 9 Comment
  POM121853  Amaranthus albus Marcus E. Jones 1924-8-26 s.n. Orange Newport. Comment
  RSA562746  Amaranthus albus Steve Boyd, Timothy S. Ross 1992-5-19 7442 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of the wilderness in Lucas Canyon from crossing the creek by Lucas Canyon Trail, downstream to confluence with Aliso Canyon. 274 Comment
  RSA725459  Amaranthus blitoides Fred M. Roberts 2007-8-6 6558 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
  POM201837  Amaranthus blitoides L. M. Booth 1932-12-16 1377 Orange Santa Ana River, near coast of Orange. Comment
  RSA542440  Amaranthus blitoides Fred M. Roberts 1988-10-21 4162 Orange Irvine: Alton Parkway at corner of Jeffrey Rd., 1.5km NNE French Survey Mark. 35 Comment
  RSA724071  Amaranthus blitum subsp. emarginatus R. E. Riefner 2005-7-9 5 -546 Orange City of Huntington Beach, Huntington Central Park at Goldenwest St. 1 Comment
  CAS-BOT-BC13493  Amblyopappus pusillus P. A. Munz 1934-3-26 13135 Orange Newport Beach 15 Comment
  IRVC22955  Amblyopappus pusillus Karlin G. Marsh 1986-10-18 Orange Santa Ana Canyon, Featherly Park; in sandy wash. Yorba Linda Comment
  IRVC8603  Amblyopappus pusillus J. B. Anderson 1966-4-16 577 Orange Newport Beach; Corona del Mar; Buck Gully; "Little Corona Beach"; moist canyon bottom with small brooklet near stream. Southern Coastal 0 Comment
  POM5983  Amblyopappus pusillus D. L. Crawford 1916-5-5 s.n. Orange Laguna Beach. Comment
  RSA416883  Amblyopappus pusillus L. C. Wheeler 1932-6-25 859 Orange Newport Bay. 1 Comment
  RSA416884  Amblyopappus pusillus L. C. Wheeler 1932-6-22 848 Orange Newport Bay. 8 Comment
  UCR223966  Amblyopappus pusillus Fred M. Roberts 2008-4-9 6862 Orange South Coast, Dana Point, Dana Point Headlands, CNLM Preserve, near Outlook 2, 0.7 km west of Marine Institute, Dana Point Harbor 52 Comment
  UCSB8603  Amblyopappus pusillus Anderson, J. 1966-4-16 Orange Corona Del Mar: Buck Gully "Little Corona Beach" 15 Comment
  RSA680320  Ambrosia acanthicarpa Scott D. White, Jeff Lincer 2003-7-7 9617 Orange Former El Toro Marine Corps Air Stn. East of 'El Toro Marine Sch.' and Irvine Blvd.; site of former dump. 140 Comment
  POM201848  Ambrosia acanthicarpa L. M. Booth 1932-7-30 1340 Orange Santa Ana River, 2 miles from ocean Comment
  RSA783366  Ambrosia acanthicarpa J. D. Olmsted 1959-9-22 979 Orange Along Santa Ana River N of Sycamore Park along Hwy. 8-9mile WSW of Corona north of Hwy. 134 Comment
  SEINET2029172 Image available Ambrosia bipinnatifida Lawrence M. Booth 1932-5-25 1110 Orange Balboa Island Comment
  CAS-BOT-BC13767  Ambrosia chamissonis Peter H. Raven 1957-9-28 11370 Orange North limits of Surfside Comment
  IRVC726  Ambrosia chamissonis D. Van Gorden 1965-4-24 Orange Huntington Beach State Park. Huntington Beach Comment
  JEPS20090  Ambrosia chamissonis Peter H. Raven 1957-9-28 11370 Orange north limits of Surfside Comment
  RSA643442  Ambrosia chamissonis R. D. Goeden, D. W. Ricker 1970-2-19 s.n. Orange Pacific Coast: Newport Beach, NW edge of town between Seashore Dr., Neptune Ave.. 56th and 58th Streets., 33deg. 37.2'N, 117deg. 57'W 2 Comment
  UC523553  Ambrosia chamissonis David D. Keck 1933-9-8 2522 Orange Sunset Beach Comment
  UC536897  Ambrosia chamissonis Lawrence M. Booth 1932-5-25 1110 Orange Balboa Island Comment
  UCR109972  Ambrosia chamissonis R. D. Goeden, Don W. Ricker 1970-2-19 s.n. Orange South Coast, Newport Beach, NW edge of town between Seashore Dr., Neptune Ave., 56th and 58th Streets 2 Comment
  UCR281837  Ambrosia confertiflora R. E. Riefner Jr. 2017-8-23 17- 424 Orange South Coast, city of Huntington Beach, Harriet M. Wieder Regional Park, east of Pacific Coast Hwy, north side of Seapoint Street, opposite Cherryhill Drive Comment
  JEPS41035  Ambrosia psilostachya J. Thomas Howell 1927-9-24 3121 Orange at, Santa Ana River bottom Rancho Santa Ana; Santa Ana River 152 Comment
  RSA743386  Ambrosia psilostachya Fred M. Roberts 2008-7-10 7066 Orange Dana Point: Dana Point Headlands, CNLM Preserve, along north slopes above Dana Strand Beach, 0.8km WNW Marine Institute, Dana Point Harbor. 45 Comment
  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
  CDA25799  Ammannia coccinea A. C. Sanders, Fred M. Roberts 2008-9-18 36095 Orange Peninsular Range; Santa Ana Mountains Foothills; Lomas de Santiago, Santiago Creek Canyon c. 0.5-0.8 mile above the highway bridge. Comment
  UCR158026  Ammannia robusta Adrian Wolf 1998-5-15 273 Orange South Coast, Lambert Reservoir, north of El Toro Marine Corps Air Station 134 Comment
  POM201704  Ammi visnaga L. M. Booth 1932-7-18 1268 Orange Santa Ana River, 1 mile from Ocean. Comment
  UC718381  Amorpha californica var. californica P. C. Everett 1935-6-19 7235 Orange 1/2 mi below (w) head of canyon; Santa Ana Mts., Trabuco Canyon 1066 Comment
  LA204903  Amorpha fruticosa Carl Epling; H. Lewis 1940-4-21 sn Orange 6 mi. E of San Juan Capistrano Comment
  RSA603352  Amorpha fruticosa Scott D. White, Brian Leatherman 1997-6-12 5329 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
  JEPS61147  Amsinckia intermedia Alice King 1908-1 Orange Anaheim plain Anaheim Comment
  RSA734899  Amsinckia intermedia A. C. Sanders 2008-5-28 35434 Orange Lomas de Santiago, Bee Flat at mouth of Limestone Canyon 264 Comment
  RSA0089627  Amsinckia intermedia Marcus E. Jones 1926-3-13 s.n. Orange Santa Ana Canyon. Comment
  RSA0127613  Amsinckia menziesii Fred M. Roberts 2016-4-26 8044 Orange Lomas de Santiago: South of Santiago Canyon Road in tributary to Lower Presida Canyon just southwest of Irvine Lake, 2.2 km S Irvine Lake dam spillway and 0.6 km SW Irvine Lake Park. 265 Comment
  UCR192464  Anagallis arvensis A. C. Sanders, Fred M. Roberts 2008-3-25 34532 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  RSA450866  Andropogon glomeratus Gordon Marsh, Karlin G. Marsh 1978-10-11 s.n. Orange Santa Ana Mountains: San Juan Hot Springs. Comment
  RSA0036018  Andropogon glomeratus Robert F. Thorne 1977-11-21 50807 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs Comment
  POM2020  Anemopsis californica D. L. Crawford s.n. Orange Laguna Beach. Comment
  RSA5909  Anemopsis californica C. B. Wolf 1932-7-2 3818 Orange Carbon Canyon, 1/8 mile below La Vida Springs [La Vida Mineral Springs]. 21 Comment
  SD41483  Anemopsis californica Edith A. Purer 1932-8-31 4873 Orange Orange County near Route #101, moist depression in sand Comment
  UCR107223  Anemopsis californica Scott D. White 1998-5-31 6567 Orange University of California, Irvine campus, SW of Farm School site (now proposed as Student Recreation Center). 37 Comment
  RSA627033  Anthemis cotula Scott D. White 1998-5-16 6507 Orange E Coyote Hills, Oil field at NW corner of Bastanchury and State College. 122 Comment
  UCR186365  Anthriscus caucalis Robert DeRuff 1995-4-30 483 Orange Southern Coast, Newport Beach, Newport Back Bay, at and above intersection of San Joaquin Hills Rd. and Backbay Dr. 2 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
  UCR203905  Antirrhinum multiflorum R. E. Riefner Jr. 2008-6-3 08- 139 Orange Santa Ana Mountains, Irvine Ranch Reserve, Fremont Canyon Conservation Easement, east fork at upper Fremont Canyon, along Black Star SCE Road 618 Comment
  RSA584718  Antirrhinum nuttallianum subsp. nuttallianum Fred M. Roberts 1989-5-18 4368 Orange Santa Ana Mountains: Upper Gypsum canyon, above ridge road, ca. 6.4 km WSW Sierra Peak. 415 Comment
  POM202125  Aphanisma blitoides P. A. Munz 1934-3-26 13131 Orange Newport Beach. 22 Comment
Read comments
Dec 4 2014
  UCR177863  Aphanisma blitoides Eliza L. Maher 2006-5-2 s.n. Orange South Coast, Dana Point Headlands, CNLM preserve 46 Comment
  RSA518  Apiastrum angustifolium J. T. Howell 1927-6-17 150 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA708286  Apiastrum angustifolium Scott D. White, Jennifer H. Jones 2005-3-31 10859 Orange City of Laguna Beach. 549 Nyes Place. Proposed home site on ca. 0.5 acre. 91 Comment
  RSA0057935  Apiastrum angustifolium Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49666 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. Comment
  RSA603357  Apium graveolens Scott D. White, Brian Leatherman 1997-6-12 5314 Orange East of San Juan Capistrano: San Juan Creek between Highway 74 bridge and Mission Vieja site, i.e., ca. 2 to 4 mi E of I-15 / Hwy 74 junction. 46 Comment
  RSA5951  Apium graveolens C. B. Wolf 1932-7-7 3842 Orange Bryant Ranch ; On Bixby Ave. 2/10 mi. W of Hansen Road. (2/10 mi. W of SE corner of NE 1/4 of NE 1/4 of sec. 34 T4S R11W) 9 Comment
Read comments
Apr 9 2014
  IRVC26732  Aquilegia formosa Mark A. Elvin 2004-6-18 3526 Orange UCI Arboretum Southern Coastal 15 Comment
  RSA0126213  Arabis glabra P. A. Munz, R. D. Harwood 1920-4-25 3721 Orange Santa Ana Mountains, Silverado Canyon. 549 Comment
  CDA5520  Araujia sericifera L. Liekhus 1957-7-1 Orange 0 Comment
  RSA7635  Arbutus menziesii C. B. Wolf 1933-11-8 5534 Orange Trabuco Canyon on So. wall opposite the Trabuco Truck Trail. 915 Comment
  RSA629336  Arctostaphylos glandulosa Jon E. Keeley 1992-6-12 15521 Orange North of El Cariso on road to Los Pinos Pk, 3.8 km north of Hwy 74. 1000 Comment
  RSA658640  Arctostaphylos glandulosa R. W. Hufstader 1971-3-29 64 Orange Collected in Harding Canyon off Harding Cyn. Rd. ca. 5 miles from Tucker Sac. Cleveland Nat. Forest. 762 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
  POM254919  Arctostaphylos glandulosa subsp. glandulosa W. Pequegnat 1940-6-19 s.n. Orange Head of West Ladd Canyon, Santa Ana Mts. Comment
  POM367271  Arctostaphylos glandulosa subsp. glandulosa Christopher Davidson 1977-5-18 5602 Orange Santa Ana Mts. Cleveland Nat. Forest. Pleasants Peak (on Orange-Riverside Co. line). 1220 Comment
  RSA629316  Arctostaphylos glandulosa subsp. glandulosa Jon E. Keeley 1992-6-12 15518 Orange North of El Cariso on road to Los Pinos Pk, 3.8 km north of Hwy 74. 1000 Comment
  RSA629329  Arctostaphylos glandulosa subsp. glandulosa Jon E. Keeley 1992-6-12 15515 Orange Road to Los Pinos Peak (3S04), 2 km northeast of Blue Jay Campground and 1 km above 5S05. North of Hwy. 74. 1100 Comment
  RSA629340  Arctostaphylos glandulosa subsp. glandulosa C. J. Fotheringham, Jon E. Keeley 1996-6-24 27640 Orange Ca. 3 km west of Sierra Peak. 700 Comment
  UCD105711  Arctostaphylos glandulosa subsp. glandulosa K. M. Meyer; A. Townesmith 2007-3-10 2 Orange Cleveland National Forest, 0.5 mi. N. Main Divide Rd./NF3S04, off Hwy. 74. Elsinore Mountains, ridge top. 917 Comment
  RSA545  Arctostaphylos glandulosa subsp. zacaensis J. T. Howell 1927-6-26 222 Orange Claymine Canyon, near Sierra Peak. 457 Comment
  SEINET10684212  Arctostaphylos glandulosa var. glandulosa Karen M. Meyer, Andrew Townesmith; Tracy Scott 2007-3-10 Meyer 2 Orange Cleveland National Forest, 0.5 mi. N. Main Divide Rd./NF3S04, off Hwy. 74. Elsinore Mountains, ridge top. 917 Comment
  UCR145984  Arctostaphylos glauca June Latting 1977-1-12 s.n. Orange Chino Hills, Tonner Canyon 213 Comment
  UCR191667  Arctotheca prostrata Robert DeRuff 2004-1 548 Orange South Coast, Newport Beach, Upper Newport Bay, bluff below Eastbluff North 18 Comment
  RSA659895  Arenaria douglasii Karl Price 1988-5-21 47 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
  SEINET4002143  Argemone munita var. robusta G. B. Ownbey, F. Ownbey 1954-1 2168 Orange Between Modjesca Peak and Santiago Peak. 1524 Comment
  IRVC489  Artemisia californica M. Munier 1965-4-20 Orange Comment
  POM201746  Artemisia californica L. M. Booth 1932-6-29 1223 Orange Newport Bay. Comment
  SD187333  Artemisia californica R. E. Riefner Jr. 2006-8-25 06 410 Orange City of Dana Point, Salt Creek Beach Park, vicinity of Dana Strand Rd. and Selva Rd. 2 Comment
  SEINET227962  Artemisia californica Leila M. Shultz 1980-5-2 4040 Orange Orange County: foothills south of Diamond Bar, Chaparral. 213 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
  CAS-BOT-BC90268  Artemisia douglasiana John Thomas Howell 1927-8-13 2989 Orange Santa Ana River bottom, Santa Ana Canyon 152 Comment
  RSA703143  Artemisia douglasiana Fred M. Roberts, Arthur Davenport 2003-9-11 6012 Orange Rancho Mission Viejo; Donna O'neill Land Conservancy, Cristianitos Cyn., 0.79 km N of Sycamore Gate, 0.23 km W of Christianitos Road. 126 Comment
  UCR173933  Artemisia douglasiana A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33051 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
  JEPS36975  Artemisia dracunculus John Thomas Howell 1927-9-24 3110 Orange Rancho Santa Ana Santa Ana Canon 152 Comment
  UC971735  Artemisia dracunculus L. M. Booth 1932-7-4 1242 Orange Newport Bay Comment
  RSA478872  Arthrocnemum subterminale F. R. Fosberg 1931-8-19 7283 Orange Newport Bay. 0 Comment
  UCSB48010  Asclepias californica Roberts, Fred 1980-6-29 Orange Santa Ana Mtns.; Viejo Canyon, 0.4 km. N Calif. Rte. 74; 2.2 km. ENE San Juan Guard Station 341 Comment
  SEINET10580457  Asclepias eriocarpa Carl B. Wolf 1936-6-17 Wolf s.n. 1936 Orange Santa Ana Mountains, along Ortega Highway, 5.6 mi above San Juan Capistrano 76 Comment
  RSA741481  Asphodelus fistulosus R. E. Riefner 2008-5-30 08 -125 Orange Near City of Orange, Santiago Creek, vicinity of Jackson Ranch Rd. at Santiago Creek Rd., Irvine Ranch Reserve, Management Area 15. Comment
Read comments
Feb 28 2016
  IRVC16667  Aspidotis californica Gordon A. Marsh, K. G. Marsh 1979-9-24 Orange Pine Canyon, along dirt road above Blue Light Mine, Santa Ana Mountains Comment
  RSA0022438  Aspidotis californica R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49797 Orange Santa Ana Mountains: Trabuco Canyon Comment
  IRVC178  Asplenium bulbiferum Ray Nesheim 1965-5-11 HS0565 Orange Balboa Island. Southern Coastal Comment
  RSA93824  Aster hesperius F. W. Peirson 1924-10-19 5241 Orange Wintersberg Comment
  CDA23617  Aster subulatus var. ligulatus A. Thomas, Mark A. Elvin 2006-9-23 609232 Orange Southern Coastal; San Joaquin Marsh Freshwater Marsh, UC Natural Reserve; southwest edge, along San Diego Creek, north of University Drive, east of Highway 73. Comment
  IRVC25156  Aster subulatus var. ligulatus Fred M. Roberts 1986-9-3 3129 Orange adjacent to Anaheim, between Yorba Linda Regional Park and Imperial Hwy, Santa Ana River 88 Comment
  IRVC24275  Aster subulatus var. ligulatus Fred M. Roberts, G. A. Marsh 1985-10-26 2525 Orange Santa Ana River: adjacent to Huntington Beach; 0.7km SSW Adams Street bridge. southern coastal 4 Comment
  SEINET946267  Asteraceae C. B. Wolf 1934-1 6262 Orange South end of town of San Clemente 15 Comment
  UCR199730  Astragalus didymocarpus var. didymocarpus Scott D. White, Justin Wood 2008-4-21 11904 Orange Chino Hills, Chino Hills State Park, N of 91 freeway, above Yorba Linda 488 Comment
  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
  RSA554621  Astragalus trichopodus Scott D. White 1992-10-20 968 Orange Vicinity of city of Brea, Immediately N of Carbon Canyon Rd & E of Placentia Avenue +/-1mi (air) SSE of Tonner Canyon. 183 Comment
  UCR230843  Astragalus trichopodus Dick Newell, Don Millar 2011-3-24 094 Orange South Coast, Huntington Beach, just south of Weider Park, 1.2 mile NE of Seapoint and Pacific Coast Hwy, slope overlooking Bolsa Chica 6 Comment
  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
  POM17799  Astragalus trichopodus var. lonchus P. A. Munz 1923-9-7 7770 Orange Mouth of Trabuco Canyon 305 Comment
  SEINET7796213  Astragalus trichopodus var. lonchus E. A. Bourdo 1975-7-25 s.n. Orange Crest of hills above Niguel Beach Comment
  SD234358  Atriplex T. B. Salvato Salvato, Katie Kurtz, Mitch Provance. 2006-3-19 1906 Orange South Coast: Irvine, San Diego Creek flood control channel, between Campus Drive and Michelson Drive (Tustin 7.5' Q) 6 Comment
  RSA743664  Atriplex R. E. Riefner 2006-8-6 6 -382 Orange City of Newport Beach, Newport Bay, Big Canyon Creek drainage near Back Bay Dr. 9 Comment
  UC1543166  Atriplex Donald G. Nelson 1935-6-28 338 Orange Fullerton, S. Brookhurst Ave 51 Comment
  UC1980275  Atriplex R. E. Riefner Jr. 2006-11-15 06 -678 Orange City of Newport Beach, Bristol St. at Jamboree Rd. Comment
  RSA752215  Atriplex amnicola R. E. Riefner Jr. 2002-5-4 02 -91 Orange Upper Newport Bay, Jamboree Rd. and Bayview Dr. 15 Comment
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Feb 28 2016
  SBBG132289  Atriplex amnicola R. E. Riefner Jr. 2006-4-17 06 -155 Orange upper Newport Bay, near Bayview Wy and Bayview Pl 6 Comment
  RSA737899  Atriplex amnicola R. E. Riefner 2006-4-25 08 -118 Orange City of San Clemente, vicinity of Camino de Los Mares and Calle Nuevo. 45 Comment
  SBBG121999  Atriplex amnicola R. E. Riefner 2005-9-16 05 -666 Orange E of Bayside Drive at confluence with Big Cyn, upper Newport Bay 6 Comment
Read comments
Dec 13 2012
  UC1930115  Atriplex amnicola R. E. Riefner Jr. 2008-5-25 08 -118 Orange City of San Clemente, vicinity of Camino de Los Mares and Calle Nuevo. Comment
  UC1543080  Atriplex californica Donald G. Nelson 1935-6-27 327 Orange on bluffs facing ocean beaches s Corona del Mar (s of mouth of Newport Bay); s of Corona del Mar, s of mouth of Newport Bay Comment
  UCR101394  Atriplex californica A. C. Sanders, P. J. MacKay, Tim Thomas, O. F. Clarke 1998-10-17 22267 Orange Coastal flats, Bolsa Chica, near Bolsa Bay, south of Warner Ave., east of the Pacific Coast Highway .3 Comment
  UCR146227  Atriplex californica Valerie Soza, Et al. 2001-4-4 1109 Orange South Coast, Seal Beach National Wildlife Refuge, Seal Beach U. S. Naval Weapons Station, across access road from Nature Center (Bldg 226) 3 Comment
  POM201812  Atriplex canescens L. M. Booth 1932-7-23 1301 Orange Corona del Mar, Newport Beach Comment
  RSA234538  Atriplex canescens James Henrickson 1970-7-24 5018 Orange 3 miles NW of Huntington Beach on sandy ''Rabbit'' Island in Bolsa Chica Salt March near Inner Bolsa Bay. 1 Comment
  RSA65358  Atriplex canescens F. W. Peirson 1924-8-29 4528 Orange Corona Del Mar Comment
  RSA452402  Atriplex coulteri Anstruther Davidson 1908-5-1 1800 Orange Newport Bay Comment
  UC150079  Atriplex coulteri LeRoy Abrams 1903-4-18 3270 Orange Trabuco Arroyo near Capistrano; Trabuco Arroyo near Capistrano Comment
  UCR130490  Atriplex glauca R. E. Riefner Jr. 2002-5-4 02- 101 Orange South Coast, Upper Newport Bay, Jamboree Road at Bayview Dr., edge of Newport Beach Q. 21 Comment
  RSA601790  Atriplex glauca D. Bramlet 1997-3-16 2504 Orange Slope above marsh adjacent to Upper Newport Bay and beside (south of) the existing bike trail, near the bridge over the Delhi channel. The site is approximately 32 m southeast of the end of University Dr. and 7 m west of the Delhi channel. 2 Comment
  UCSB56520  Atriplex lentiformis Johnson, J. 1978-11-8 Orange Irvine; Coyote Canyon Road and Mac Arthur Blvd. intersection Comment
  POM278739  Atriplex lentiformis subsp. breweri Grant D. Brown 1949-10-9 399 Orange 4 miles N. of San Clemente on hyway 101 Comment
  RSA33798  Atriplex leucophylla N. C. Cooper 1942-11-9 884 Orange Balboa Comment
  RSA478320  Atriplex leucophylla Albert J. Perkins 1923-5-3 s.n. Orange Laguna Beach. 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
  IRVC9295  Atriplex semibaccata B. T. Gittins 1966-6-24 1421 Orange Crescent Beach; coastal bluff. Laguna Beach Comment
  SD133115  Atriplex semibaccata A. C. Sanders 1990-10-6 10192 Orange Newport Bay, North Star County Beach area on the southwest end of the bay, ca. 2.0 km inland of Highway 1. 0 Comment
  RSA0031755  Atriplex semibaccata R. F. Thorne 1977-11-21 50819 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs Comment
  RSA252  Atriplex serenana J. T. Howell 1927-7-22 459 Orange North of Botany Garden, Rancho Santa Ana. 274 Comment
  RSA254  Atriplex serenana J. T. Howell 1927-6-30 235 Orange Bryant Ranch near Long Beach. 15 Comment
  RSA452383  Atriplex serenana var. davidsonii L. C. Wheeler 1934-1-14 2363 Orange Aliso Creek near Laguna. 76 Comment
  IRVC25483  Atriplex serenana var. serenana Fred M. Roberts 1987-7-28 3508 Orange Peter's [Creek] Channel at Barranca Crossing, Irvine 8 Comment
  RSA232220  Atriplex subspicata James Henrickson 1970-8-22 s.n. Orange 2.5 miles NNW of Huntington Beach 0 Comment
  IRVC29713  Atriplex triangularis Mark A. Elvin, Barry S. Nerhus 2006-11-4 5249 Orange Huntington Beach; 1.5 km SW of Wintersburg, SW of jct Slater and Goldenwest; Shipley Nature Center. Southern Coastal 1 Comment
  CHSC104028  Atriplex watsonii Valerie Soza; K. Clark, L. Gross, W. Miller, F. Roberts, G. Wallace 2001-4-4 1100 Orange Seal Beach National Wildlife Refuge: Seal Beach U.S. Naval Weapons Station, across access road from Nature Center (Bldg 226). 3 Comment
  POM202119  Atriplex watsonii P. A. Munz 1934-3-26 13157 Orange Newport Beach. 5 Comment
  CDA22567  Avena fatua J. B. Anderson 1966-4-16 584 Orange South Coast; Corona Del Mar: Buck Gully, Little Corona Beach Comment
  HSC9025  Avena fatua J. W. Johnson 1961-3-29 Orange Newport Beach Comment
  UCSB42557  Avena fatua Romspert, Alan 1966-3-2 Orange Carbon Canyon, 0.5 mi E of Carbon Canyon Dam Comment
  UCR160445  Avena sativa Robert DeRuff 1992-5-29 435 Orange South Coast, Newport Back Bay, just below the bluff top in the Castaways area 15 Comment
  IRVC22750  Azolla filiculoides Fred M. Roberts 1985-5-15 3026 Orange San Joaquin Hills: Laguna Canyon; Laguna Lakes, northernmost pond, south margin, 5km ENE Signal Peak. southern coastal 114 Comment
  IRVC25484  Baccharis douglasii Fred M. Roberts 1987-6-21 3467 Orange Bolsa Chica salt marsh: 1.0km SSE Chica Hill near east Garden Grove-Wintersburg Channel southern coastal 0 Comment
  IRVC29764  Baccharis douglasii Barry S. Nerhus, Mark A. Elvin 2006-11-4 4 Orange Huntington Beach, Bolsa Chica Wetlands, SW portion of Reserve beside Pacific Coast Highway. Southern Coastal 0 Comment
  RSA756322  Baccharis douglasii A. C. Sanders, Fred M. Roberts, Jutta Burger 2009-10-21 37201 Orange Lomas de Santiago, Santiago Canyon near mouth of Limestone Cyn., at Agustine Staging Area 260 Comment
  IRVC18080  Baccharis emoryi Gordon A. Marsh 1980-10-24 Orange Irvine: San Joaquin Frreshwater Marsh, south end, earth dam, pond 4. southern coastal Comment
  IRVC25196  Baccharis emoryi Fred M. Roberts, Robert Fisher 1986-10-28 3179 Orange Main Divide Truck Trail Extension, 2.3km E Los Pinos Peak, in seep at base of south-facing road cut. Santa Ana Mountains 1030 Comment
  RSA731921  Baccharis emoryi Fred M. Roberts, Sandy Leatherman 2007-11-27 6658 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
  RSA653416  Baccharis malibuensis R. E. Riefner, Adrian Wolf 2000-8-23 20 -732 Orange NCCP North Ranch Policy Plan Area. Fremont Canyon: N. of Santiago Creek & immediately S. of major stream fork 305 Comment
  UCR205874  Baccharis malibuensis R. E. Riefner Jr. 2008-6-25 08- 175 Orange Santa Ana Mountains, Irvine Ranch Reserve, Fremont Canyon Conservation Easement, east Fremont Canyon, power line access road off Lakeview SCE Road 483 Comment
  RSA741698  Baccharis malibuensis R. E. Riefner Jr. 2008-6-25 08 -171 Orange Santa Ana Mts., Irvine Ranch Reserve, Fremont Canyon Conservation Easement, east Fremont Canyon, power line access road off Lakeview SCE Rd. 495 Comment
  RSA528054  Baccharis pilularis A. C. Sanders 1990-10-6 10200 Orange Newport Bay, North Star County Beach area on the SW end of the bay, ca. 2 km inland of Hwy 1 1 Comment
  RSA549989  Baccharis pilularis Scott D. White 1992-9-23 84 Orange Vicinity of Olinda, near city of Brea, immediately N of Carbon Cyn Rd & E of Placentia Ave.; ca. 1 mi. (airline) SSE of Tonner Cyn. 183 Comment
  SD108950  Baccharis pilularis James Henrickson 1972-10-21 8047 Orange Eastern Anaheim, 2 blocks east of Imperial Highway, along La Palma Avenue, just north of Santa Ana River. 60 Comment
  UCR150571  Baccharis pilularis Scott D. White, Matt Carlton 2003-11-20 9860 Orange South Coastal Plain, Santa Ana Mtn foothills. San Juan Creek in San Juan Capistrano 24 Comment
  IRVC505  Baccharis pilularis subsp. consanguinea B. Newman 1965-3-14 Orange Dana Point Comment
  CAS-BOT-BC106733  Baccharis salicifolia John Thomas Howell 1927-10-23 3171 Orange Sandy flats of Santa Ana River bottom, Santa Ana Canyon [Canon] 152 Comment
  RSA734659  Baccharis salicifolia A. C. Sanders, Fred M. Roberts, Amber O'Neal, David E. Bramlet 2008-5-9 35295 Orange Weir Canyon, c. 1.1 mi. E of Walnut Cyn Reservoir. 277 Comment
  SEINET899257  Baccharis salicifolia L. Freeman 1963-1 142 Orange Diamond Bar Ranch in Brea Canyon, Santa Ana Mountains. 244 Comment
  UCR192736  Baccharis salicifolia A. C. Sanders, Fred M. Roberts 2008-5-6 35231 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hicks Canyon, just above tollway (Hwy 241) crossing on Irvine Haul Rd., near debris basin 216 Comment
  JEPS21259  Baccharis salicina L. M. Booth 1933-10-18 Orange Newport Beach Comment
  UCR66989  Baccharis salicina A. C. Sanders 1990-10-6 10190 Orange South Coast, Newport Back Bay, SW side at North Star County Beach, SW end of the bay, c. 2 km inland from Hwy 1/ Pacific Coast Hwy 3 Comment
  RSA724033  Bacopa monnieri R. E. Riefner 2004-9-3 4 -419 Orange City of Yorba Linda, N floodplain of Santa Ana River near Yorba Linda Regional Park. 96 Comment
  RSA113260  Barbarea orthoceras E. K. Balls 1955-4-4 20427 Orange 2.7 miles SW from Orange Riverside county line, along Hwy 74, San Juan Capistrano to Elsinore. 305 Comment
  IRVC24276  Bassia hyssopifolia Fred M. Roberts, G. A. Marsh 1985-10-26 2524 Orange Santa Ana River: adjacent to Huntington Beach; 0.7km SSW Adams Street bridge. southern coastal 4 Comment
  UCD97549  Bassia hyssopifolia R. D. Goeden; D. W. Ricker 1965-7-7 s.n. Orange Tustin township, near Peters Canyon Channel, E of Santa Ana Marine Corps Air Station. 61 Comment
  CAS-BOT-BC75515  Batis maritima C. B. Wolf 1934-7-29 6041 Orange Newport Bay. 0 Comment
  LA105120  Batis maritima Barry A. Prigge; 1988-6-30 8119 Orange eastern Newport Beach, ca 1100 ft E of Santa Ana River/Greenville-Banning channels along old river channel and SE of oil wells 0 Comment
  RSA303573  Batis maritima J. R. Shevock 1972-9-27 2291 Orange Newport Back Bay. 2 Comment
  RSA439753  Batis maritima F. R. Fosberg 1930-7-10 S 3184 Orange Anaheim Landing. [Los Angeles Co. on label] 1 Comment
  RSA439754  Batis maritima F. R. Fosberg 1931-8-19 S 5678 Orange Newport Bay. 1 Comment
  SFV20021  Batis maritima A. Dittmer, S. Dark 2004-10-3 76 Orange Bolsa Chica wetlands. South side of public parking lot off Highway 1. Comment
  UCR99879  Beta macrocarpa Scott D. White 1993-3-5 1121 Orange Tustin. Marine Air Corps Air Station: SE of Red Hill Ave and NE of Barranca 15 Comment
  SEINET3090330 Image available Beta vulgaris Cesareo Perez 1971-5-15 Orange Huntington State Beach Pacifico Cst. Hwy. Brookhurst Huntington Beach. Comment
  RSA234518  Beta vulgaris James Henrickson 1970-7-25 5082 Orange 3.5 miles NW of Huntington Beach growing along graded inner slope of East Garden Grove-Wintersburg Flood Control Channel near Bolsa Chica Salt Marsh. 2 Comment
  RSA5958  Beta vulgaris C. B. Wolf 1932-7-7 3852 Orange Bixby Ave., 1.3 mi. W of Hansen Road. (0.2 mi. E of SW corner of NW 1/4 of NE 1/4 of Sect. 33). 8 Comment
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Apr 10 2014
  RSA151082  Bidens laevis Peter H. Raven 1961-10-15 16850 Orange Anaheim: Santa Ana River Bed at Anaheim Street crossing. 61 Comment
  RSA696877  Bidens laevis J. Russell Bruff 1930-10 s.n. Orange Santa Ana River Bed. Comment
  IRVC20225  Bidens pilosa Fred M. Roberts, K. G. Marsh 1982-10-18 834 Orange Temple Hill, east margin of Top of the World School, Laguna Beach 295 Comment
  RSA0031741  Bidens pilosa R. F. Thorne 1977-11-21 50823 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs Comment
  RSA184197  Bidens pilosa I. L. Wiggins 1965-12-18 20426 Orange Margin of lawn, upper edge of Hillcrest Park, Fullerton Comment
  RSA751311  Bloomeria crocea A. C. Sanders, Fred M. Roberts 2008-5-6 35266 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
  RSA652084  Bloomeria crocea Shlomo Gat 1959-5-12 38 Orange Hills in Orange county. Comment
  POM1686  Bloomeria crocea var. crocea D. L. Crawford 1916-5-5 s.n. Orange Laguna Beach Comment
  UCR12191  Bloomeria crocea var. crocea Art Whistler 1966-4-27 s.n. Orange Between Laguna Beach and Anaheim, via Laguna Canyon Rd. and probably Route 1 Comment
  RSA362294  Boisduvalia densiflora Fred M. Roberts 1985-6-7 1861 Orange Santa Ana Mountains: Main Divide Truck trail, 2.2km ESE Los Pinos Peak. 1005 Comment
  UCR146418  Bolboschoenus maritimus subsp. paludosus Sandra L. Leatherman 1998-9-3 48 Orange Coastal Plains & Basins; South Coastal Plain, Dana Point: Monarch Beach, northeast of the intersection of State Highway 1 and Crown Valley Parkway, and west of Salt Creek 30 Comment
  UCD55403  Bolboschoenus robustus B. Pitzer 1996-4-30 2772 Orange Upper Newport Bay, California Dept. Fish and Game Ecological Reserve, off (W of) Jamboree Rd. UTM 10 km cell: MH-1E, 2N. Costa Mesa. 6 Comment
  RSA37  Bothriochloa barbinodis J. T. Howell 1927-6-5 38 Orange Rancho Santa Ana, near east boundary. 152 Comment
  RSA703844  Bothriochloa barbinodis D. E. Bramlet, Fred M. Roberts 2003-3-13 3337 Orange Donna O'Neill Reserve. North east ridge line 762m W of Cristianitos Rd., and 1.15 km N of the E-W Access road., 11S 04 46 955E, 37 05 838N) 198 Comment
  UC712166  Bothriochloa barbinodis Charles B. Fiker 1944-7-7 3139 Orange Trabuco Canyon, on Bill Rochester Ranch Trabuco Canyon Comment
  UCR205990  Bothriochloa barbinodis Adrian Wolf 1997-5-20 009 Orange South Coast, northwest of city of Laguna Beach, 100 ft from Pine Crest Drive reservoir, upslope bank adjacent to the road 152 Comment
  POM8745  Bowlesia incana P. A. Munz, R. D. Harwood 1920-4-25 3723 Orange Santa Ana Mountains, Silverado Canyon. 549 Comment
  SEINET3156098  Bowlesia septentrionalis E. K. Balls 1950-3-7 14446 Orange Administration Grounds of Rancho Santa Ana Botanic Garden Comment
  CAS-BOT-BC420395  Boykinia rotundifolia R. J. Smith 1903-6-1 79 Orange Mill Creek and Santa Ana River 914 Comment
  RSA542371  Brachypodium distachyon Fred M. Roberts, Karlin G. Marsh 1988-4-25 3933 Orange San Joaquin Hills: East flank Pelican Hill, 0.9 kilometer SE summit. 120 Comment
  RSA747609  Brachypodium distachyon Fred M. Roberts 2000-5-4 5316 Orange Lomas de Santiago: Loma Ridge, Hicks Cyn., west of SR 241, 1.9 km E Rattlesnake Reservoir dam and 2.1 km WSW Bee Peak. 210 Comment
  CLARK-A1528-982  Brassica nigra Patricia A. Andrews 1975-6-26 5915 Orange Capistrano Bay Beach 9 Comment
  IRVC20787  Brassica nigra Fred M. Roberts, S. L. Fritzke 1982-4-2 468a,b,c Orange hills, 3.5km ESE Aliso Peak; 3.2km ESE Alicia Fire Station, N of Del Avion, Laguna Niguel 100 Comment
  UCR241907  Brassica nigra Fred M. Roberts 2012-4-24 7526 Orange Peninsular Ranges; Coastal Foothills, San Joaquin Hills, Buck Gully, tributary canyon below San Joaquin Hills Road and 2.0 km W Signal Peak 167 Comment
  RSA792477  Brassica rapa Justin M. Wood 2011-2-28 3268 Orange South Coast: Santa Ana River, marsh just upstream of Pacific Coast Highway. Plants collected throughout the marsh and along the adjacent bike path. 0 Comment
  UCR222629  Brickellia californica T. B. Salvato 2010-10-27 5102 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
  UCR46574  Brickellia californica B. G. Pitzer, D. C. Hawks 1986-10-21 0349 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, c. 10 mi east of Santa Ana, in hills N and east of South Coast Gun Club on Jeffrey Road in Hicks Canyon 183 Comment
  UCR132993  Briza minor Adrian Wolf 2001-7-16 456 Orange Santa Ana Mtns., North Ranch Policy Plan Area, North Baker Canyon Road 305 Comment
  SEINET199452  Brodiaea capitata J. R. Glen 1957-5-3 Orange .5 miles from the San Bernardino County line. 3 miles east of Olinda along Carbon Canyon road. 201 Comment
  RSA642460  Brodiaea filifolia Tony Bomkamp 1995-6-5 s.n. Orange Rancho Mission Viejo. Ridgeline and lots 1 mi N of Ortega Hwy and W of Canada Gobernadora. Comment
  RSA655022  Brodiaea filifolia David E. Bramlet 1998-5-21 2625 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. 201 Comment
  RSA658595  Brodiaea filifolia David E. Bramlet 2001-5-23 3145 Orange Prima Deshecha landfill. The site is located 671m southwest of the landfill entrance and 46m south of the existing ridgeline access road. 134 Comment
  UCR142297  Brodiaea filifolia D. E. Bramlet, Sandy Leatherman 1998-5-21 2625 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
  POM50858  Bromus carinatus Le Roy Abrams 1901-06 1844 Orange Mt. Santiago. Comment
  SEINET14397348  Bromus carinatus D. L. Croninger 1964-12-15 18 Orange Fullerton Jr. College on Chapman Ave., Fullerton. Comment
  CAS-BOT-BC156207  Bromus catharticus John Thomas Howell 1956-3-11 30923 Orange Yorba Linda. Comment
  RSA725588  Bromus catharticus Fred M. Roberts 2007-8-6 6560 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
  UCD58377  Bromus catharticus Frank W. Gould 1944-6-25 2360 Orange Tournat Ranch. Garden Grove. Comment
  UCD58383  Bromus catharticus John Thomas Howell 1956-3-11 30923 Orange Yorba Linda. Comment
  POM364007  Bromus catharticus Albert J. Perkins 1920-2-12 s.n. Orange Santa Ana. Comment
  RSA737538  Bromus diandrus Fred M. Roberts 2008-3-12 6724 Orange Dana Point: Dana Point Headlands CNLM Preserve, western side, c.a. 0.8 km W Marine Institute (Dana Point Harbor). 50 Comment
  RSA699982  Bromus grandis Rankin s.n. Orange Santa Ana. Comment
  RSA696603  Bromus hordeaceus Rankin s.n. Orange Santa Ana. Comment
  RSA0013861  Bromus madritensis Fred M. Roberts 2012-4-24 7517 Orange San Joaquin Hills: Buck Gully, west of intersection of Ridge Park Road and Newport Coast Drive, 1.5 km W Signal Peak. 179 Comment
  RSA697036  Bromus rigidus Keith E. Hoffmaster 1924-4-15 s.n. Orange Santa Ana Comment
  CAS-BOT-BC161822  Bromus rubens Ira L. Wiggins 1966-3-18 20531 Orange Experimental Garden back of greenhouse, California State College at Fullerton. Comment
  UCR192471  Bromus rubens A. C. Sanders, Fred M. Roberts 2008-3-25 34539 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  RSA42  Bromus rubens J. T. Howell 1928-2-26 857 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA697680  Bromus rubens Elisabeth Norland 1929-4-11 s.n. Orange Cypress. Comment
  RSA735752  Bromus sterilis A. C. Sanders, Fred M. Roberts 2008-5-6 35235 Orange Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 280 Comment
  UCD59710  Bromus sterilis Scott D. White; Noel Davis 1998-5-21 6548 Orange Santa Ana Mtn. foothills. Mission Viejo Area: Aliso Creek watershed, east of El Toro Rd., just N of jtn. w/ Valley Vista Wy. Large proposed subdivision called 'Saddleback Meadow. 304 Comment
  CLARK-A1528-972  Bromus willdenowii Patricia A. Andrews 1975-6-26 5918 Orange Capistrano Bay Beach 9 Comment
  POM122271  Cakile edentula subsp. edentula Marcus E. Jones 1924-8-26 s.n. Orange Newport. 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
  UCR191231  Calandrinia ciliata A. C. Sanders, Fred M. Roberts 2008-4-22 35043 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, valley at south end of Loma Ridge and at head of Limestone Canyon, c. 2.5 miles SW of Silverado, above spring shown on topo map 457 Comment
  SD237519  Callistemon citrinus Mark A. Elvin 2003-2-23 2309 Orange South Coast: Irvine, San Joaquin Marsh along the berm of San Diego Creek. 3 Comment
  CDA5109  Callistemon viminalis R. E. Riefner Jr. 2006-10-19 06 -559 Orange City of Newport Beach, Irvine Coast Trail at San Diego Creek, near SR-73 crossing, south of Jamboree Road. Comment
  CAS-BOT-BC140073  Calochortus E. W. Lathrop 1966-3-23 6098 Orange 4 miles NE of Lake Irvine, Black Star Canyon, Cleveland Nat'l. Forest, Trabuco District Comment
  CAS-BOT-BC132257  Calochortus catalinae Philip A. Munz 1949-5-26 13379 Orange Head of Sierra Canyon, Santa Ana Mts. 731 Comment
  RSA120  Calochortus catalinae J. T. Howell 1928-3-17 863 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA443846  Calochortus catalinae Gordon Marsh, K. G. Marsh 1978-3-30 s.n. Orange Santa Ana Mountains: Ortega Highway, E of Highway Marker #67 before San Juan Creek Bridge. Comment
  RSA542334  Calochortus catalinae Fred M. Roberts 1988-4-10 3918 Orange Lomas De Santiago: Loma Ridge, Lower Santiago Canyon drainage, 1.1kilometer NNW Bolero Lookout. 451 Comment
  RSA749314  Calochortus catalinae Fred M. Roberts 2008-3-25 6791 Orange Loma Ridge: Upper Hicks Cyn. near Haul Road, c.a. 4.4 km by road from Portola Pkwy. and 3.2 km ENE Rattlesnake Cyn. Reservoir. 269 Comment
  RSA773558  Calochortus catalinae Fred M. Roberts 2008-6-3 7026 Orange Lomas de Santiago: Loma Ridge, East Fork Rattlesnake Canyon, ca. 2.3 km ENE of Rattlesnake Reservoir spillway and 2.2 km ENE Bee Peak 217 Comment
  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
  UCR192502  Calochortus catalinae A. C. Sanders, Fred M. Roberts 2008-3-25 34549 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  UCR203898  Calochortus catalinae R. E. Riefner Jr. 2008-4-15 08- 71 Orange Irvine Ranch Reserve, north Irvine Ranch, Fremont Canyon Conservation Easement, west Fremont Canyon, lower Coalmine SCE Road 301 Comment
  UCR209385  Calochortus catalinae Fred M. Roberts 2008-3-25 6791 Orange Loma Ridge, Upper Hicks Canyon near Haul Road, c. 4.4 km by road from Portola Parkway, and 3.2 km east northeast Rattlesnake Canyon Reservoir 269 Comment
  UC1930166  Calochortus catalinae Mark Elvin with Charles Gorenst 1996-3-16 113 Orange Coastal Plains & Basins; South Coastal Plain region: Crystal Cove State Park 300 m down hill from no brains trail. Comment
  RSA561495  Calochortus plummerae Steve Boyd, Kyle Boyd 1992-7-9 7655 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
  RSA649686  Calochortus plummerae R. E. Riefner 2000-7-8 20 -625 Orange NCCP North Ranch Policy Plan Area. On ridgeline overlooking upper W fork of Fremont Canyon; located E of Main Divide Road and SE from Windy Ridge cypress forest. 438 Comment
  CSUSB398  Calochortus splendens Richard G. Sullivan 1972-4-22 720422 7 Orange Laguna Hills Laguna Hills Comment
  JEPS61716  Calochortus splendens Alice King May 1908 Orange Santa Ana Mts. Comment
  POM23718  Calochortus splendens Russell S. Woglum 1938-5-8 1617 Orange Ortega Highway between Capistrano and Elsinore. Comment
  RSA542333  Calochortus splendens Fred M. Roberts 1988-4-10 3919 Orange Lomas De Santiago: Loma Ridge, 1.0 kilometer N Bolero Lookout. 415 Comment
  UC64873  Calochortus splendens Miss Jane White May 1903 3 Orange Arch Beach Comment
  RSA132250  Calochortus splendens Gale Sphon 1959-5-2 325 Orange Between Upper and Lower San Juan Camps, Cleveland National Forest. Comment
  UC284975  Calochortus weedii P. A. Munz 1923-6-14 7104 Orange trail from Glen Ivy to Santiago Peak; Santa Ana Mts. 914 Comment
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Apr 1 2013
  CAS-BOT-BC132660  Calochortus weedii var. intermedius John Thomas Howell 1927-7-3 2636 Orange Claymine [Canon] Canyon, n. Santa Ana Mts. 304 Comment
  RSA690971  Calochortus weedii var. intermedius Scott D. White, Michael Honer 2003-5-29 9427 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
  RSA773559  Calochortus weedii var. intermedius Fred M. Roberts 2008-6-3 7025 Orange Lomas de Santiago: Loma Ridge, East Fork Rattlesnake Canyon, ca. 2.3 km ENE of Rattlesnake Reservoir spillway and 2.2 km ENE Bee Peak 217 Comment
  UCR217675  Calochortus weedii var. intermedius Fred M. Roberts 2008-5-27 7003 Orange Peninsular Range; Santa Ana Mountains Foothills, Lomas de Santiago, Loma Ridge, Hicks Canyon, c. 0.2 km beyond Hicks Canyon Gate, 2.2 km west-northwest of Bee Peak, Irvine Ranch Conservancy 213 Comment
  UCR43238  Calochortus weedii var. intermedius Kathy Harper 1986-6-7 s.n. Orange Santa Ana Mtns., Modjeska Canyon Road just below Tucker Wildlife Sanctuary Comment
  RSA747706  Calycadenia tenella Fred M. Roberts 2008-5-16 6984 Orange Dana Point: Dana Point Hradland, CNLM Preserve, north of Marguerita Drive, 0.5 km WNW Marine Institute, Dana Point Harbor. 75 Comment
  UC7754  Calyptridium monandrum C. W. Hamlin 1896-1 8 Orange Buena Park Comment
  UCR106281  Calystegia macrostegia B. G. Pitzer, M. Georgiady 1997-4-5 3079 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
  UCR109765  Calystegia macrostegia R. D. Goeden, Don W. Ricker 1965-6-21 s.n. Orange Dana Point 61 Comment
  UCR131876  Calystegia macrostegia J. Mallory, V. McCoy 1995-7-3 6454- 129 Orange Santa Ana Mountains: Blind Canyon, c. 0.5 mi. NE of confluence w/ Santiago Canyon Wash; north of Irvine Lake. 300 Comment
  CHSC13500  Calystegia macrostegia H. E. Hemasth 1974-4-11 1 Orange Side of road, ca 0.7 mi NE of the Mission San Juan Capistrano on Hwy 74. 36 Comment
  CSUSB666  Calystegia macrostegia subsp. cyclostegia Sue Freeman 1966-3-27 Orange Laguna. About 30 yards off Wave Street in Laguna (end of street); on grassy hillside 100 feet above ocean and over crest of hill from it. 30 Comment
  UCR239621  Calystegia macrostegia subsp. cyclostegia Fred M. Roberts 2012-4-24 7499 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
  UCR281552  Calystegia macrostegia subsp. intermedia Mitch Provance, Jeremiah George 2017-3-20 317- 118 Orange West Coyote Hills, Fullerton, vicinity of Utility Access Roads E of Gilbert Street and N of Castlewood Dr., on land previously occupied by oil fields. 137 Comment
  SFV18301  Calystegia soldanella J. Diaz, V. Bendijo, S. L. Diaz, H. Mercurio 2002-5-3 s. n. Orange Newport Beach. Small dunes south of Balboa Road. Comment
  LA88456  Calystegia soldanella O. H. Kappler; 1943-5-6 411 Orange Huntington Beach Comment
  SEINET7126140  Calystegia soldanella N. J. Hartke 1953-4-2 13 Orange Balboa Beach Comment
  RSA159495  Camissonia bistorta Thomas Craig 1928-3-31 778 Orange Santa Ana Mountains, Silverado Canyon. Comment
  RSA3184  Camissonia bistorta Carl B. Wolf 1938-3-8 2679 Orange Newport Bay, low bluffs bordering area, 1/2 mile north of Corona del Mar. 8 Comment
  UCR193058  Camissonia bistorta A. C. Sanders, Fred M. Roberts 2008-6-17 35504 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, Windy Ridge Rd., saddle on ridge at head, above the Eastern Transportation Corridor 400 Comment
  HSC16447  Camissonia cheiranthifolia subsp. suffruticosa B. Francis 1964-5-2 43 Orange Newport Beach Comment
  RSA357147  Camissonia cheiranthifolia subsp. suffruticosa Robert F. Thorne 1975-4-6 45584 Orange Head of Newport Bay. Comment
  RSA737479  Camissonia cheiranthifolia subsp. suffruticosa Fred M. Roberts 2008-3-12 6737 Orange Dana Point: Dana Point Headlands CNLM Preserve, western side, c.a. 0.8 km W Marine Institute (Dana Point Harbor). 50 Comment
  UCR203990  Camissonia cheiranthifolia subsp. suffruticosa Fred M. Roberts 2008-3-12 6737 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
  RSA732072  Camissonia hirtella A. C. Sanders, Fred M. Roberts 2008-3-25 34558 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills. 259 Comment
  UCR175054  Camissonia robusta Vanessa Lee 2005-4-24 s.n. Orange South Coast, Crystal Cove, Laguna Beach, above Pacific Coast Highway 61 Comment
  UC635390  Camissoniopsis bistorta H. L. Mason 1926-4-25 2928 Orange 5 mi s Laguna Comment
  CHSC60116  Camissoniopsis cheiranthifolia subsp. suffruticosa S. P. Gallagher 1988-4-2 Orange Bolsa Chica State Beach ca 1 mi s of Warner St. 0 Comment
  SBBG47450  Camissoniopsis cheiranthifolia subsp. suffruticosa N. C. Cooper 1944-6-3 1326 Orange Balboa Beach Comment
  SBBG61430  Camissoniopsis cheiranthifolia subsp. suffruticosa M. N. Ackley -May-1926 756 Orange Sunset Beach 8 Comment
  UC306300  Camissoniopsis cheiranthifolia subsp. suffruticosa D. L. Crawford 1916-7-28 Orange Abalone Point Laguna Beach Region (sand dunes) Comment
  UC422961  Camissoniopsis cheiranthifolia subsp. suffruticosa D. L. Crawford 742 Orange Aliso Pt. Laguna Beach Region (shore cliffs) Comment
  CAS-BOT-BC37127  Capsella bursa-pastoris Ira L. Wiggins 1966-2-25 20476 Orange Firestone Boy Scout Reservation, east of Brea. Comment
  POM202599  Cardaria draba L. M. Booth 1932-5-15 1197 Orange E of Hungtington Beach. Comment
  RSA23656  Cardaria draba E. R. Johnson 1939-4-25 9496 Orange Santa Ana Canyon, Rancho Santa Ana, along Santa Fe RR tracks. 122 Comment
  RSA697446  Cardaria draba Elisabeth Norland 1929-4-11 54 Orange Cypress. Comment
  CAS-BOT-BC282975  Carduus pycnocephalus Steve Boyd; Tim Ross 1992-5-19 7427 Orange S Santa Ana Mountains, San Mateo Canyon Wilderness Area. W edge of the wilderness along Lucas Canyon Trail from access road to Rancho Carrillo (7S06) N into Aliso Canyon 457 Comment
  UCR210292  Carex A. C. Sanders, Fred M. Roberts, Jutta Burger 2009-10-21 37193 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hangmans Tree Canyon 379 Comment
  SBBG52701  Carex globosa C. Davidson 1977-5-18 5621 Orange Bear Springs, Santa Ana Mtns 1219 Comment
  CAS-BOT-BC119004  Carex pellita Helen D. Geis 1902-4-1 559 Orange District Banks, near Santa Ana. Comment
  CAS-BOT-BC119006  Carex pellita Helen D. Geis 1902-4-1 s.n. Orange Santa Ana Comment
  CAS-BOT-BC118485  Carex praegracilis Helen D. Geis 1902-4-1 567 Orange Unspecified Comment
  CAS-BOT-BC118490  Carex praegracilis Helen D. Geis 1902-4-1 s.n. Orange Unspecified Comment
  CAS-BOT-BC118506  Carex praegracilis Helen D. Geis 1902-4-1 567 Orange Ditch banks near Santa Ana Comment
  UCR193317  Carpobrotus edulis A. C. Sanders, Fred M. Roberts 2008-6-17 35470 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Agustine staging area near Limestone Canyon Rd. gate at Santiago Cyn Rd. 260 Comment
  RSA732124  Castilleja affinis A. C. Sanders, Fred M. Roberts 2008-4-8 34759 Orange Peninsular Range; Lomas de Santiago, Loma Ridge, SSE of Santiago Reservoir on Loma Ridge Spur Rd., above Dripping Springs Loop Rd. 457 Comment
  RSA82234  Castilleja affinis F. W. Peirson 1923-3-25 3376 Orange Aliso Canyon, near Laguna Beach. 152 Comment
  RSA0010903  Castilleja affinis Shlomo Gat 1959-5-12 35 Orange Hills in Orange county. Comment
  JEPS21372  Castilleja affinis subsp. affinis Milo S. Baker 1958-5-20 13304 Orange Newport Bay Comment
  RSA638965  Castilleja affinis subsp. affinis Valerie L. Soza, LeRoy Gross 1999-6-7 480 Orange West side of Modjeska Peak, along Main Divide Road. 1448 Comment
  UC1424837  Castilleja affinis subsp. affinis C. W. Tilforth and Dorothy Tilforth 1977-3-6 1259 Orange ca 10 mi w Corona (large wash w of Weir Canyon, s side of Santa Ana River) 152 Comment
  UC718040  Castilleja exserta subsp. exserta P. C. Everett 1935-4-27 Orange 1 mi w Atwood (Jack Johnson property) 152 Comment
  UCSB17560  Castilleja exserta subsp. exserta Cummings, R. 1963-5-11 Orange 9 miles from San Juan Capistrano on U.S. Highway 101 alternate Comment
  UCSB47597  Castilleja exserta subsp. exserta Roberts, Fred 1980-5-3 Orange 0.1km NE Falcon Group Camp; Santa Ana Mtns 1012 Comment
  RSA400601  Castilleja foliolosa P. A. Munz, R. D. Harwood 1920-4-24 3745 Orange Sierra [Freemont] Canyon, Santa Ana Mts. 366 Comment
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Sep 25 2011
  RSA705  Castilleja foliolosa J. T. Howell 1928-2-25 848 Orange Nolina Canyon, Rancho Santa Ana. 152 Comment
  RSA0043344  Castilleja foliolosa Nancy J. Mann 1976-5-20 s.n. Orange Harding Canyon, Santa Ana Mtns. Comment
  UCSB56517  Castilleja foliolosa Anderson, J. 1966-3-7 Orange San Joaquin Hills; near bottom or Moro Canyon 91 Comment
  JEPS8829  Castilleja minor subsp. spiralis L. M. Booth 1932-8-9 1371 Orange Newport Bay Comment
  RSA0054976  Ceanothus Keith E. Hoffmaster 1934-7-15 108 Orange Santa Ana mts. (Santiago can). Comment
  RSA0029943  Ceanothus crassifolius Fred M. Roberts, Sandy Leatherman 2013-2-13 7721 Orange Santa Ana Mountains: Ridge south of central Santiago Canyon, near Joplin Trail, 3.7 km SE Modjeska (town). 800 Comment
  RSA304748  Ceanothus crassifolius James R. Shevock 1971-2-6 1178 Orange Mojeska Cyn 396 Comment
  RSA755789  Ceanothus crassifolius Dylan O. Burge 2007-3-22 DOB 805 c Orange Santa Ana Mountains, Cleveland National Forest, 2.3 road miles from Highway 74 on USFS Road 3S04, 28.9 kilometers 50 degrees true east-northeast of San Juan Capistrano. 960 Comment
  RSA0054817  Ceanothus crassifolius Keith E. Hoffmaster 1933-3-9 504 Orange Santa Ana mts. Comment
  RSA25842  Ceanothus integerrimus var. californicus Carl B. Wolf 1941-8-15 11153 Orange w. slope Santiago Truck Trail, 1.6 mi. below mian divide motorway. 1220 Comment
  RSA708727  Ceanothus integerrimus var. puberulus Fred M. Roberts, Robert L. Allen, Chris Barnhill, Nancy Hatfield 2005-5-30 6221 Orange northwest slope of Modjeska Peak, Harding Canyon watershed, Main Divide Road, 0.61km NNW summit Modjeska Peak. 1407 Comment
  CAS-BOT-BC51167  Ceanothus leucodermis Carl B. Wolf 1941-8-15 11152 Orange Santa Ana Mts., W. slope Santiago Truck Trail 4.4 mi. belw main divide motorway 1066 Comment
  RSA3025  Ceanothus leucodermis E. R. Johnson 1931-12-31 2641 Orange Racho Santa Ana, river bottom south of Ranch houses, ear the boudary benre. Comment
  SBBG4369  Ceanothus leucodermis M. Van Rensselaer 1941-5-30 1674 Orange summit of Ortega Hwy (St Hwy 74) 762 Comment
  UC1070860  Ceanothus leucodermis A. Lewis Mar 1934 371 Orange Mojeska Peak Corona quad., Cleveland National Forest 1524 Comment
  RSA698619  Ceanothus megacarpus Dorothy Sammis s.n. Orange Trabuco Canyon. Comment
  UCR52605  Ceanothus megacarpus Jeri Hirshberg 1988-6-7 s.n. Orange Santa Ana Mountains, Santa Ana Mountains 275 Comment
  RSA95392  Ceanothus megacarpus F. W. Peirson 1923-3-23 4192 Orange Hills back from beach, Aliso Creek, near Laguna Beach. 122 Comment
  RSA95350  Ceanothus oliganthus F. W. Peirson 1925-4-11 5735 Orange slope above mill, in Silverado Canyon, Santa Ana Mountains. 915 Comment
  UCSB48364  Ceanothus oliganthus var. oliganthus Roberts, Fred 1982-4-18 Orange SANTA ANA MTNS.: Upper Hot Springs Cyn., 0.1km SW Falcon Group Camp; 2.0km SE Los Pinos Peak 1075 Comment
  JEPS42415  Ceanothus oliganthus var. sorediatus Frank W. Peirson 1925-4-10 Orange along rd Silverado Canyon 609 Comment
  LA44933  Ceanothus palmeri W. E. Pequegnat; 1937-9-6 sn Orange Santa Ana Mountains, Ortega Rd Comment
  RSA748818  Ceanothus palmeri G. Gust, L. Nye 2005-3-12 563 Orange Cleveland National Forest, on Hwy 74 ca. 0.5 m W of county boundary with Riverside at a pullout. 401 Comment
  UC1071194  Ceanothus palmeri A. Lewis Mar 1934 364 Orange head of Silverado Canyon Corona Quad., head of Silverado Canyon Comment
  HSC46608  Ceanothus papillosus var. roweanus Christopher Davidson 1977-5-18 5598 Orange Santa Ana Mts. Cleveland Nat. Forest. Pleasants Peak (on Orange-Riverside Co. line) 1220 Comment
  RSA5303  Ceanothus papillosus var. roweanus B. D. Stark 1933-1-5 1754 Orange 2 mi. so. of summit of skyline Drive on road along ridge to Santiago Peak. Santa Ana Mts. 1067 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
  PASA2514  Ceanothus sorediatus Frank W. Peirson 1925-4-11 Orange Silverado Canyon, Santa Ana Mountains 914 Comment
  CAS-BOT-BC53005  Ceanothus spinosus P. C. Everett 1935-6-19 7241 Orange Santa Ana Mts., Trabuco Canyon, 1/8 mi. below (W.) Forest Service Patrol Station 487 Comment
  OBI10341  Ceanothus spinosus Carl B. Wolf 1941-8-15 11151 Orange Santa Ana Mts, W slope Santiago Truck trl to Santiago Pk 1.2 mi above F.S. Gate 610 Comment
  RSA637494  Ceanothus spinosus Valerie L. Soza, LeRoy Gross 1999-6-8 503 Orange Santa Ana Mountains: Santiago and Modjeska Canyons, above Tucker Wildlife Sanctuary, above the town of Modjeska 518 Comment
  SD41970  Ceanothus spinosus Darley F. Howe 1947-4-29 Orange Santa Ana Mts. Comment
  UC1281278  Ceanothus tomentosus H. E. McMinn 1935-6-22 3927 Orange w Covina; Santa Ana Mountains, w of Covina Comment
  UCD169754  Ceanothus tomentosus R. F. Thorne; C. W. Tilforth, E. W. Lathrop 1977-4-27 49676 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. 457 Comment
  RSA1445  Ceanothus tomentosus var. olivaceus J. T. Howell 1929-2-11 1224 Orange trail from [Claymine] Canyon to Sierra Peak, Santa Ana Mts. 335 Comment
  RSA752850  Centaurea melitensis Fred M. Roberts 2009-4-21 7154 Orange Dana Point Headlands: southern cliffs, 0.7 km W Marine Institute at Dana Point Harbor. CNLM Dana Point Preserve. 3 Comment
  RSA791494  Centaurea melitensis R. F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49610 Orange Santa Ana Mountains: along Ortega Highway (74) about 2.5 miles above San Juan Fire Station Comment
  CAS-BOT-BC284478  Centaurea solstitialis T. C. Fuller 1962-6-7 8870 Orange N. end of Fullerton Golf Course, Fullerton Comment
  RSA551  Centaurium venustum J. T. Howell 1927-6-2 15 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  UCR237924  Centaurium venustum Dick Newell, Don Millar, Shaina Oagarile 2012-6-19 275 Orange South Coast, Newport Beach, Buck Gully in San Joaquin Hills, 0.43 mi. SW of San Joaquin Trailhead 201 Comment
  CAS-BOT-BC123545  Centromadia parryi subsp. australis David Daniels Keck 1933-9-29 2537 Orange Seal Beach. Comment
  CAS-BOT-BC520401  Centromadia parryi subsp. australis R. E. Riefner, Jr. 2014-8-28 14 -310 Orange City of Costa Mesa, TAlbert Regional Park, immediately W of Starfish Ct., E of the Santa Ana River 4 Comment
  JEPS38139  Centromadia parryi subsp. australis L. M. Booth 1933-10-18 Orange Newport Comment
  SD80940  Centromadia parryi subsp. australis James Henrickson 1970-7-25 5071 Orange 3 miles northeast of Huntington Beach at far northern end of Bolsa Chica Salt Marsh near pasture; along channel south of Flood Control channel (mak 10/07) 0 Comment
  UC1424929  Centromadia parryi subsp. australis C. W. Tilforth 1975-9-6 1047 Orange ne shoreline Upper Bay; Newport Beach Comment
  UC897740  Centromadia parryi subsp. australis Louis C. Wheeler 1932-6-25 849 Orange 5 mi w Santa Ana 22 Comment
  IRVC25032  Cerastium fontanum subsp. vulgare Fred M. Roberts 1986-8-26 3086 Orange University of California campus, Alderich Park just north of Engineering Building; Irvine 26 Comment
  UCSB72266  Cerastium glomeratum Roberts, Fred 1980-5-3 Orange Santa Ana Mtns.; San Juan Canyon, near mouth of Viejo Cyn.: below Rte. 74; 2.5 km. by road ENE San Juan Guard Station; 0.5 km. WSW Bm 1100 288 Comment
  CAS-BOT-BC142123  Cercocarpus betuloides James R. Shevock 1978-4-26 5893 Orange On the divide road, FS 3S04, between Beeks Place and Sierra Peak - Santa Ana Mountains, Cleveland National Forest 1097 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
  SD247726  Cercocarpus betuloides var. betuloides R. F. Thorne, C. W. Tilforth, E. W. Lathrop. 1977-4-27 49704 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  UCSB48217  Cercocarpus betuloides var. betuloides Roberts, Fred 1981-4-11 Orange Santa Ana Mtns., San Juan Canyon, Hwy 74, 2.7km ENE San Juan Guard Sta. 325 Comment
  RSA810  Chaenactis artemisiifolia J. T. Howell 1927-6-5 36 Orange just to E of Rancho Santa Ana 152 Comment
  UCR193348  Chaenactis artemisiifolia A. C. Sanders 2008-5-28 35437 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Bee Flat at mouth of Limestone Canyon 264 Comment
  UCR193822  Chaenactis artemisiifolia A. C. Sanders, Fred M. Roberts 2008-7-16 35867 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Creek wash at and above the confluence of Hangmans Tree Canyon 370 Comment
  POM351782  Chaenactis glabriuscula var. glabriuscula F. R. Fosberg 1931-6-21 5099 Orange Silverado Canyon. Santa Anita Mts. Comment
  UC149240  Chaenactis glabriuscula var. glabriuscula LeRoy Abrams 1903-4-13 3254 Orange Buena Park Comment
  UCR209359  Chaenactis glabriuscula var. glabriuscula Fred M. Roberts, D. E. Bramlet, Megan Lulow 2008-4-4 6845 Orange Lomas de Santiago, Loma Ridge, at Calochortus Ridge near East Lomas Ridge Road, 0.7 km east of Bee Peak, Irvine Ranch Conservancy 509 Comment
  IRVC29873  Chamaesyce Mark A. Elvin, D. Kelch 2006-12-9 5301 Orange Newport Backbay; Big Canyon, lower end. Southern Coastal 3 Comment
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Jul 17 2015
  IRVC29811  Chamaesyce albomarginata Laura D. Lyons, Mark A. Elvin 2006-9-23 425 Orange San Joaquin Marsh Freshwater Marsh, UC Natural Reserve; SW edge, along San Diego Creek, N of University Drive, E Hwy 73. Southern Coastal 2 Comment
  RSA648946  Chamaesyce albomarginata Mark Breidenbaugh, Caralisa Breidenbaugh 1992-5-25 62 Orange 1/2 mile south of Chino Hills State Park Boundary. 228 Comment
  RSA719411  Chamaesyce maculata Fred M. Roberts, Robert L. Allen 2006-10-8 6424 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
  RSA436  Chamaesyce polycarpa var. polycarpa J. T. Howell 1927-6-9 71 Orange Botany Garden, Rancho Santa Ana. [original location] 152 Comment
  RSA542538  Chamaesyce polycarpa var. polycarpa Fred M. Roberts 1988-5-13 3968 Orange Lomas de Santiago: Loma Ridge, Upper Limestone Canyon near spring, 2.3 km NW Bolero Lookout. 439 Comment
  RSA562820  Chamaesyce polycarpa var. polycarpa Steve Boyd 1992-5-20 7473 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
  RSA0023269  Chamaesyce polycarpa var. polycarpa R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49784 Orange Santa Ana Mountains: Trabuco Canyon Comment
  IRVC848  Chamomilla suaveolens L. Stilgenbauer 1965-3-21 Orange Corona del Mar Highschool. Newport Beach Comment
  IRVC26749  Chasmanthe floribunda Mark A. Elvin, J. Liou, J. Carpenter, J. Nguyen 2004-3-8 3169 Orange UCI Arboretum Southern Coastal 15 Comment
  RSA685793  Cheilanthes newberryi Albert J. Perkins 1913-3-6 s.n. Orange San Juan Hot Springs Comment
  UCD137350  Cheilanthes newberryi Beecher Crampton 1963-5-7 6788 Orange Santa Ana Mountains, Lower San Juan Canyon, ca. 11 miles northeast of San Juan Capistrano, State Hwy. 74. Comment
  IRVC19707  Cheilanthes newberryi Karlin G. Marsh 1983-7-14 Orange Laguna Canyon between Camarillo and Laural Canyons on Irvine Ranch; 3 small clusters on large outcrop beneath narrow ledge. San Joaquin Hills Comment
  SD236265  Chenopodium album A. C. Sanders, Fred M. Roberts 2008-9-18 36065 Orange Peninsular Range; Santa Ana Mtns Foothills: Lomas de Santiago, Santiago Creek Canyon ca. 1 mile above the highway bridge (El Roro 7.5'Q) 320 Comment
  RSA5936  Chenopodium album C. B. Wolf 1932-7-7 3838 Orange Bryant Ranch, along drainage ditch on Bixby Ave.; 100 ft. W. of Hansen Rd.; 100 ft W of corner of NE 1/4 9 Comment
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Apr 9 2014
  IRVC20219  Chenopodium ambrosioides Fred M. Roberts 1982-10-1 821 Orange Niguel Hill, west flank, 2.7km NNE Aliso Peak; 0.9km WNW Alicia Fire Station, Laguna Niguel 157 Comment
  UC536960  Chenopodium ambrosioides Lawrence M. Booth 1932-7-25 1312 Orange 1 1/2 mi from ocean; Santa Ana River Comment
  UCR197684  Chenopodium ambrosioides A. C. Sanders, Fred M. Roberts 2008-9-18 36062 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge 330 Comment
  CDA25887  Chenopodium berlandieri T. McCrainie, Mark A. Elvin 2006-9-23 3 Orange Southern Coastal; San Joaquin Marsh Freshwater Marsh, UC Natural Reserve; southwest edge, along San Diego Creek, north of University Drive, east of Highway 73. Comment
  RSA788909  Chenopodium berlandieri Fred M. Roberts 2008-6-26 7061 Orange Lomas de Santiago: Loma Ridge along West Loma Ridge Road, c.a. 1 km N Haul Rd., 2.5 km NNW Bee Peak, Irvine Ranch Land Conservancy. 382 Comment
  POM201965  Chenopodium berlandieri var. sinuatum L. M. Booth 1932-6-29 1228 Orange Newport Bay. Comment
  RSA234525  Chenopodium berlandieri var. sinuatum James Henrickson 1970-7-24 5019 Orange 3 miles NW of Huntington Beach on sandy ''Rabbit'' Island in Bolsa Chica Salt March near Inner Bolsa Bay. 1 Comment
  IRVC22549  Chenopodium californicum Fred M. Roberts 1985-5-1 1705 Orange Aliso Canyon, 2.1km NNE Aliso Peak, Aliso Viejo 67 Comment
  RSA478480  Chenopodium californicum Albert J. Perkins 1909-7-4 s.n. Orange Arch Beach. Canon near beach. Comment
  UCR136806  Chenopodium macrospermum A. C. Sanders, Mark A. Elvin 2003-11-9 27366 Orange Southern Coastal Slope, Irvine, San Joaquin Marsh adjacent to UCI Arboretum, UCI campus near intersection of Jamboree Blvd. and Campus Dr. 2 Comment
  UCR27598  Chenopodium macrospermum John C. Roos 1949-10-1 4681 Orange South Coast, Doheny Beach 0 Comment
  IRVC387  Chenopodium murale B. Mawdsley 1965-3-30 Orange east bluff at Mar Vista. Newport Beach Comment
  UCR154290  Chenopodium murale Mark A. Elvin 2004-5-2 3403 Orange Southern Coastal, Irvine: San Joaquin Freshwater Marsh, near Campus and University Drives; 1.7 km (air) NNW UC Irvine campus center 3 Comment
  RSA184192  Chenopodium murale I. L. Wiggins 1966-5-25 20666 Orange Parkway along south side of Nutwood Lane, margin of CSCF campus, Fullerton. Comment
  UC1618023  Chorizanthe Donald G. Nelson 1935-4-6 250 Orange e. San Juan Capistrano (and just s. of boundary of Cleveland Nat'l Forest) Comment
  UC1608267  Chorizanthe fimbriata var. fimbriata Steve Boyd, Tim Ross 1992-5-20 7474 Orange western edge of San Mateo Canyon Wilderness Area in Lucas Canyon (along foot trail upstream from end of old roadgrade to upper homestead (corrugated steel building)); Southern Santa Ana Mountains, San Mateo Canyon Wilderness Ar 350 Comment
  UCSB47592  Chorizanthe fimbriata var. fimbriata Roberts, Fred 1980-5-3 Orange On north side of Highway 74, 0.6 km. E San Juan Guard Station, San Juan Canyon, Santa Ana Mountains, 238 Comment
  RSA739343  Chorizanthe procumbens Keith E. Hoffmaster 1935-4-19 298 Orange Santiago can. near Silverado ca., Santa Ana Mountains. Comment
  UCR266291  Chorizanthe procumbens D. E. Bramlet 2002-4-15 3267 Orange Pass area in Little Sycamore Canyon 122 Comment
  CAS-BOT-BC255251  Chorizanthe staticoides P. C. Everett 1935-4-29 6711 Orange Santa Ana Canyon, 7/10 mile W of Esperanza 152 Comment
  POM293154  Chorizanthe staticoides Lyman Benson 1946-5-13 12094 Orange Corona del Mar, Pacfic Ocean drainage area 15 Comment
  RSA751164  Chorizanthe staticoides D. E. Bramlet 2008-5-9 4265 Orange Ridgeline between the upper two tributaries of Wier Cyn. 1.2km east of S. Serrano Ave and 1.3km west of Gypsum Cyn. 330 Comment
  UCR37797  Chorizanthe staticoides Steve Boyd 1981-5-13 s.n. Orange South Coast, Pelican Hill, Irvine Ranch Property, San Joaquin Hills south of Corona del Mar 218 Comment
  RSA0004910  Chorizanthe staticoides var. elata P. A. Munz 1923-6-14 7085 Orange Glen dry trail to Santiago Peak , Santa Ana Mountains, dry ridge in chaparral belt. 1463 Comment
  UCR154287  Chrysanthemum coronarium Mark A. Elvin 2004-5-2 3407 Orange Southern Coastal, Irvine: San Joaquin Freshwater Marsh, near Campus and University Drives; 1.7 km (air) NNW UC Irvine campus center 3 Comment
  UCR220970  Chrysanthemum coronarium Dick Newell, Don Millar 2010-4-13 19 Orange Peninsular Range; Santa Ana Mtns. Foothills, Portola Parkway at tollroad 241 244 Comment
  UCR261694  Chrysanthemum coronarium Dick Newell, Don Millar, Judy Booth 2015-4-15 401 Orange South Coast, city of Newport Beach, North Star Beach, 90 yards NE of Newport Aquatic Center bulding 3 Comment
  POM201617  Cicuta bolanderi L. M. Booth 1333 Orange Newport Lagoon Comment
  RSA68335  Cirsium occidentale var. occidentale G. R. Campbell 1951-5-30 16154 Orange San Juan Canyon, Ortega Hwy, 4 mi. inside west border of Cleveland National Forest. 152 Comment
  RSA788908  Cirsium occidentale var. occidentale Fred M. Roberts 2008-6-26 7060 Orange Lomas de Santiago: Loma Ridge along West Loma Ridge Road, c.a. 1 km N Haul Rd., 2.5 km NNW Bee Peak, Irvine Ranch Land Conservancy. 382 Comment
  IRVC9095  Cirsium vulgare J. Turner 1966-3-9 35 Orange Warner Street. Huntington Beach Comment
  RSA773523  Cistanthe monandra Fred M. Roberts 1999-5-14 5214 Orange Peninsular Ranges; Santa Ana Mts.: Lomas de Santiago, Loma Ridge; Upper Limestone Canyon on slopes above Bolero Spring, 2.4 km NNW Bolero Lookout 451 Comment
  RSA731913  Cistus creticus Fred M. Roberts, Sandy Leatherman 2007-11-27 6666 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
  POM153245  Clarkia bottae C. L. Hitchcock 1928-5-5 49 Orange Mouth of Santa Ana Canyon. 150 Comment
  UCR261719  Clarkia bottae Dick Newell, Judy Booth 2014-5-25 373 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, Maple Springs Rd./Silverado Canyon Rd., 1.52 miles ENE of the lower Maple Springs gate 695 Comment
  SEINET8726152 Image available Clarkia elegans Jean Coulson 1959-1 s.n. Orange Disneyland, Orange County, California. Found in painted Desert at entrance to Rainbow mines. Comment
  POM3064  Clarkia epilobioides Daniel J. Crawford 1916-07 s.n. Orange Near Laguna. Comment
  RSA16420  Clarkia purpurea subsp. quadrivulnera Percy C. Everett 1935-5-19 6872 Orange Santa Ana Mountains, Baker Canyon, West Ladd Truck trail. 305 Comment
  SD90170  Clarkia purpurea subsp. quadrivulnera Benjamin C. Stone 1953-5-1 323 Orange Chaparral openings, on slopes above Coal Creek Canyon, Santa Ana Mountains. 1219 Comment
  UCSB48212  Clarkia purpurea subsp. quadrivulnera Roberts, Fred 1981-5-3 Orange Santa Ana Mtns; Hot Springs Cyn; 0.8 km by road N of San Juan Guard Station 256 Comment
  CAS-BOT-BC172351  Clarkia purpurea subsp. viminea Munz; Street; Williams 1919-5-3 2669 Orange Santa Ana River Canyon Comment
  CAS-BOT-BC91328  Clematis lasiantha P. C. Everett 1935-6-18 7218 Orange Santa Ana Mountains, summit of Santiago Peak. 1731 Comment
  UCR103287  Clematis ligusticifolia B. G. Pitzer, T. Tennant 1997-11-8 3366 Orange San Joaquin Hills, Crystal Cove State Park, along Moro Canyon Trail, from beginning to a point c. 1.75 mi. up the canyon. 85 Comment
  CAS-BOT-BC92807  Clematis pauciflora Munz; Street; Williams 1919-5-3 2651 Orange Santa Ana River Canon [Canyon]. Comment
  POM305824  Clematis pauciflora Henry J. Ramsey, Henry J. Ramsey 1937-4-2 1074 Orange Capistrano Canyon. Comment
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Dec 17 2011
  POM6466  Clematis pauciflora P. A. Munz, L. T. Street, G. Williams 1919-5-3 2651 Orange Santa Ana River Canyon. Comment
  RSA386282  Clematis pauciflora M. B. Dunkle 1936-3-14 4701 Orange San Juan Canyon. Comment
  POM2489  Cleome isomeris P. A. Munz 1918-5-5 2188 Orange Laguna Beach. Comment
  RSA234519  Cleome isomeris James Henrickson 1970-7-24 4958 Orange 1.5 miles NW of Huntington Beach, along border of Bolsa Chica Salt Marsh at SW end of Huntington Beach Mesa. 2 Comment
  RSA3179  Cleome isomeris C. B. Wolf 1932-03 2684 Orange Low bluffs bordering Newport Bay, 1/2 mile N of Corona del Mar. 8 Comment
  UCR256937  Clinopodium chandleri Naomi Fraga, Duncan S. Bell 2009-5-11 2721 Orange Peninsular Range; Santa Ana Mountains, Chiquita Trail, Lion Canyon 762 Comment
  RSA449088  Cneoridium dumosum Unspecified s.n. Orange Laguna Beach. Comment
  RSA449089  Cneoridium dumosum Thekla Mohr 1517 Orange Laguna. Comment
  RSA542395  Cneoridium dumosum Fred M. Roberts Jr. 1987-3-24 3271 Orange Laguna Beach: Goff Ridge, south of Nyes Place Rd., 0.9km NNE Goff Island. 169 Comment
  RSA702764  Cneoridium dumosum Scott D. White, Michael Honer 2004-5-17 10393 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
  RSA77080  Cneoridium dumosum F. W. Peirson 1919-11-18 2031 Orange South of Arch Beach, Comment
  RSA0117461  Collinsia concolor Naomi Fraga 2009-5-11 2713 Orange San Juan loop trail, Cleveland National Forest just west of Sugarloaf Spur Trail. 912 Comment
  UCR193023  Collinsia concolor A. C. Sanders, Mitch Provance 2008-5-20 35398 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, mouth of Hangman Tree Canyon just above confluence with Santiago Creek Canyon, c. 1/2 mile below Modjeska Canyon confluence 366 Comment
  RSA0018459  Collinsia heterophylla J. D. Olmsted 1959-5-1 532 Orange 100 yrds NW of Rattlesnake Rock. 0.75 mi N of Hidden Ranch in Black Star Canyon. 4-5 mi E of Irvine Lake Reservoir. Drainage area to Santa Ana River. 732 Comment
  RSA305753  Collinsia heterophylla James R. Shevock 1313 Orange Newport Beach Bay. 11 Comment
  RSA305754  Collinsia heterophylla var. heterophylla James R. Shevock 1312 Orange Silverado Canyon near Irvine Lake. 305 Comment
  UCR227635  Collinsia parryi Robt. L. Allen, Fred M. Roberts, Christopher M. Barnhill 2003-4-26 12365 Orange Santa Ana Mountains, San Juan Canyon, San Juan Loop Trail near Upper San Juan Campground 523 Comment
  RSA0117394  Collinsia parryi Fred M. Roberts, K. Nowak 1995-4-19 4927 Orange Lower Hot Springs Canyon, San Juan Trail, 0.4 km NNW Juan Rancho Survey Mark. 396 Comment
  RSA0117316  Collinsia parviflora Robert Allen, Fred M. Roberts, Chris M. Barnhill 2003-4-26 12364 Orange Santa Ana Mountains, San Juan Canyon, San Juan Loop Trail near Upper San Juan Campground. 523 Comment
  UCR186683  Conium maculatum T. B. Salvato, Katie Kurtz, Mitch Provance 2006-10-15 1904 Orange South Coast, Irvine, San Diego Creek flood control channel, between Campus Drive and Michelson Drive 6 Comment
  POM201632  Conium maculatum L. M. Booth 834 Orange Santa Ana Canyon Comment
  RSA699123  Conium maculatum J. Vlahos s.n. Orange Santa Ana River by Fairview. Comment
  RSA699124  Conium maculatum J. Vlahos 1934-6-9 s.n. Orange Santa Ana River by Fairview. Comment
  IRVC9146  Convolvulus arvensis B. T. Gittins 1966-6-20 1414 Orange 0.5mi N Warner on Euclid Ave.; roadside ditch embankment. Huntington Beach Comment
  IRVC968  Convolvulus arvensis E. McRae 1965-4-3 Orange Costa Mesa Comment
  POM201722  Convolvulus arvensis L. M. Booth 1932-5-26 1126 Orange Newport Bay Comment
  UCR16173  Convolvulus arvensis Art Dawson 1968-5-4 s.n. Orange Rancho Mission Viejo, Ortega Hwy near San Juan Capistrano, 0.5 mi. north of Ranch Headquarters Comment
  UCR158047  Convolvulus simulans Fred M. Roberts, D. E. Bramlet 2003-4-10 5652 Orange Coastal Plains & Basins; South Coastal Plain region, Rancho Mission Viejo: Donna O'Neill Land Conservancy, ridges west of Cristianitos Cyn., 1.17km SW Gato Gate and 1.02km W Cristianitos Rd. 175 Comment
  RSA0045316  Convolvulus subacaulis Ophelia Frost 1932-4-2 s.n. Orange At the Dam above Orange County Road. Comment
  CAS-BOT-BC285928  Conyza bonariensis Ira L. Wiggins 1965-11-5 20321 Orange Near corner of Dowling St. and Crowther Ave., Placentia Comment
  RSA730987  Conyza bonariensis Fred M. Roberts 2006-11-15 6461 Orange Santa Ana Cyn., 1.0 km ENE Imperial Hwy bridge, between La Palma Ave. and Santa Ana River near Big Springs St. 89 Comment
  UCR193007  Conyza bonariensis A. C. Sanders 2008-5-28 35442 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Bee Flat at mouth of Limestone Canyon 264 Comment
  RSA573304  Conyza bonariensis Steve Boyd, Timothy S. Ross 1994-9-14 8361 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area of the Cleveland National Forest, Lucas Canyon trail at stream crossing in Aliso Canyon. 341 Comment
  IRVC25164  Conyza canadensis Fred M. Roberts 1986-9-3 3141 Orange adjacent to Anaheim, between Yorba Linda Regional Park and Imperial Hwy, Santa Ana River 88 Comment
  UCR192729  Conyza floribunda A. C. Sanders, Fred M. Roberts 2008-5-6 35210 B Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hicks Canyon near Irvine Ranch gate and road junction to cement plant 180 Comment
  POM202716  Cordylanthus maritimus subsp. maritimus L. M. Booth 1932-5-12 1003 Orange Newport Bay. Comment
  UCR193827  Cordylanthus rigidus A. C. Sanders, Fred M. Roberts 2008-7-16 35852 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, upper Hangmans Tree Canyon 395 Comment
  UC284871  Cordylanthus rigidus subsp. setiger P. A. Munz 1923-9-7 7745 Orange Santiago Peak Santa Ana Mts. 1645 Comment
  CAS-BOT-BC101297  Corethrogyne filaginifolia Marcus E. Jones 1924-8-26 s.n. Orange Newport Comment
  UCSB52942  Corethrogyne filaginifolia Roberts, Fred 1983-11-4 Orange Santa Ana Mtns.; between Flacon and Blue Jay campgrounds; along Main Divide Truck Trail, 2.1 km. ESE Los Pinos Peak 1090 Comment
  RSA397461  Cornus nuttallii T. W. Minthorn 1926-5-10 s.n. Orange Orange Co. Comment
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Mar 6 2019
  IRVC629  Cotula australis L. Burns 1965-4-30 Orange 19th Street. Costa Mesa Comment
  RSA735026  Cotula australis Scott D. White, Justin M. Wood 2008-4-10 11846 Orange Chino Hills: Powerline access road just N of CHSP boundary and just W of Orange/SB co. line. Approx. 1 mi. NW of Gilman Peak. 366 Comment
  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
  CDA20829  Cotula coronopifolia P. Akers 2006-3-25 PA 3 -06 Orange Peninsular Ranges; Yorba Linda, N edge of Santa Ana River. S of La Palma Dr, 0.5-0.8 mi E of Yorba Linda Dr. 121 Comment
  CLARK-A1528-929  Cotula coronopifolia Patricia A. Andrews 1975-6-26 5921 Orange Capistrano Bay Beach 9 Comment
  UC1719522  Cotula coronopifolia D. Atwood 1993-3-29 17728 Orange Huntington Beach along Beach Blvd ca 1/2 miles N of the beach. Comment
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Jul 14 2012
  CAS-BOT-BC291358  Cotula coronopifolia C. W. Tilforth; John Dourley 1969-4-22 184 Orange San Clemente Comment
  RSA696770  Cotula coronopifolia Minor Warne 1934-5-13 s.n. Orange Santa Ana River Bank. Comment
  CAS-BOT-BC77624  Cotyledon Reid Moran 1993-6-30 31095 Orange South slope above 1500 Coast Highway, Newport Beach 15 Comment
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Dec 20 2019
  RSA696059  Cotyledon lanceolata Keith E. Hoffmaster 1928-5-29 s.n. Orange San Onofre. CP5. Comment
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Dec 20 2019
  SD134612  Cotyledon orbiculata var. oblonga Reid Moran 1992-8-31 31093 Orange South slope above 1800 Coast Highway, Newport Beach. 14 Comment
  IRVC25399  Crassula connata Fred M. Roberts 1987-4-3 3338 Orange San Joaquin Hills; Irvine; central Shady Canyon, 2.9km NE Signal Hill. Central coastal 107 Comment
  IRVC25468  Crassula connata Fred M. Roberts 1987-4-21 3379 Orange Aliso Creek, Aliso Creek Bike Trail, 3.0km ENE Moulton Peak, Aliso Viejo 73 Comment
  RSA773507  Crassula connata Fred M. Roberts 1999-5-14 5227 Orange Lomas de Santiago: Loma Ridge, Upper Limestone Canyon, 0.7 km NW Bolero Spring and 2.6 km SW Silverado School 490 Comment
  CDA25356  Crassula connata Andreas 1944-4-14 Orange Santa Ana. 0 Comment
  RSA348  Crassula connata var. erectoides J. T. Howell 1928-2-7 s.n. Orange Santa Ana River bottom, Rancho Santa Ana 152 Comment
  RSA793017  Cressa truxillensis Justin M. Wood 2011-4-12 3670 Orange South Coast, Santa Ana River: marsh just upstream of Pacific Coast Highway. On isolated sand capped island. 0 Comment
  IRVC22971  Cressa truxillensis Karlin G. Marsh 1986-8-26 Orange Flood Control Channel F-10 east of Redhill Ave.; dry banks of flood control channel. Tustin Comment
  RSA5240  Cressa truxillensis C. B. Wolf 1932-9-13 4028 Orange Edge of field So. of Bryant Ave., 1/2 mi. W of Los Alamitos Blvd. 8 Comment
  IRVC21733  Croton californicus Fred M. Roberts, G. A. Marsh 1984-10-16 1421 Orange east bluff, Newport Back Bay, 3.6km W UCI campus center; 0.1km S Camp Survey Mark, Newport Beach 15 Comment
  OBI30078  Croton californicus L. Fountain 1966-4-1 72 Orange Near Rancho Santa Ana, at the end of Orangethorpe Ave Comment
  POM201862  Croton californicus L. M. Booth 1932-5-26 1123 Orange Newport Bay Comment
  RSA0011253  Croton californicus Fred M. Roberts, Sandy Leatherman 2007-11-27 6670 Orange Yorba Linda: Santa Ana Canyon, Santa Ana River wash, S of E La Palma Road near Via Lomas de Yorba Linda, about 0.6 km W Gypsum Cyn. bridge. 113 Comment
  RSA748257  Croton californicus A. C. Sanders, Fred M. Roberts 2008-6-17 35518 Orange middle section of Weir Canyon, SSE of Walnut Canyon Reservoir 225 Comment
  UCR192728  Croton californicus A. C. Sanders, Fred M. Roberts 2008-5-6 35229 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
  UCR222384  Cryptantha Mark A. Elvin 2003-1-26 2247 Orange South Coast, Irvine, UC Irvine Open Space Preserve, NE side, between core of UCI campus (E Peltason Dr.) and Hwy 73 69 Comment
  RSA0029036  Cryptantha Keith E. Hoffmaster 1934-4-8 137 Orange Santa Ana Mts. Comment
  UCR209386  Cryptantha clevelandii Fred M. Roberts 2008-3-19 6782 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
  IRVC15158  Cryptantha intermedia J. Schram 1965-5-9 Orange San Juan Capistrano Comment
  IRVC15159  Cryptantha intermedia C. Thompson 1965-2-28 Orange Corona Del Mar: Corona Highlands Southern Coastal Comment
  UC1063976  Cryptantha intermedia A. Lewis 1934-3-1 386 Orange Borrego Canyon Corona Quad. 426 Comment
  UCR157485  Cryptantha leiocarpa A. C. Sanders 1986-5-31 6529 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
  POM6631  Cryptantha microstachys P. A. Munz, L. T. Street, G. Williams 1919-5-3 2620 Orange Santa Ana River Canyon. Comment
  RSA0013970  Cryptantha microstachys Fred M. Roberts 2008-4-8 7169 Orange Lomas de Santiago; Loma Ridge, Upper Dripping Springs Cyn,. 1.0km NE Bee Peak, Irvine Ranch Conservancy. 458 Comment
  RSA0127600  Cryptantha microstachys Fred M. Roberts 2016-3-25 8030 Orange San Joaquin Hills: Bommer Canyon, west slope near south end fo Nature Loop Trail, 0.1 km NW Cattle Camp and 1.6 km NE summit of Signal Peak. 146 Comment
  RSA542659  Cryptantha microstachys Fred M. Roberts, K. Keane 1988-5-26 4005 Orange Rancho Mission Viejo: tributary to Trampas canyon, along Christianitos rd., 2.4 km ESE Viejo Survey mark. 128 Comment
  UCR191223  Cryptantha microstachys A. C. Sanders 2008-4-29 35127 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
  IRVC20157  Cryptantha muricata var. muricata R. L. Allen 1977-4-16 Orange 0.7km N La Novia bridge; west of water path. San Juan Capistrano Comment
  RSA0079591  Cryptantha muricata var. muricata J. T. Howell 1928-2-25 846 Orange Nolina Canyon, Rancho Santa Ana. 152 Comment
  UCR209188  Cucurbita pepo A. C. Sanders, Fred M. Roberts 2008-9-18 36087 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Santiago Creek Canyon c. 0.5-0.8 miles above the highway bridge 300 Comment
  CAS-BOT-BC80568  Cupressus forbesii P. A. Munz; I. M. Johnston 1922-5-18 5566 Orange Santa Ana Mts. 457 Comment
  CAS-BOT-BC80575  Cupressus forbesii John Thomas Howell 1927-8-10 2983 A Orange upper [Claymine] Clay Mine Canyon, n. Santa Ana Mts. 609 Comment
  IRVC19540  Cupressus forbesii Karlin G. Marsh 1982-7-30 Orange Coal Canyon, west slope, at Claymont Clay Mine. Santa Ana Mountains Comment
  JEPS19317  Cupressus forbesii John Thomas Howell 1927-8-10 2983 A Orange w of Sierra Peak (at head of Claymine Canon); Santa Ana Mts., Claymine Canon 609 Comment
  JEPS39796  Cupressus forbesii John Thomas Howell 1927-8-10 2983 a Orange Claymire Canyon Santa Ana Mts., Sierra Peak, Claymire Canyon 609 Comment
  POM11894  Cupressus forbesii Philip A. Munz, I. M. Johnston 1922-5-18 5566 Orange Santa Ana Mts. Santa Ana River Canyon. Alluvial soil along canyon, 2d large canyon south of Orange County line. Comment
  CAS-BOT-BC224408  Cuscuta californica John Thomas Howell 1927-6-3 2420 Orange Southern Puente Hills in the Santa Ana Canon [Canyon] 152 Comment
  POM18139  Cuscuta ceanothi P. A. Munz 1923-9-7 7760 Orange Along trail from Trabuco Canyon on to Santiago Peak. 1128 Comment
  RSA545240  Cuscuta ceanothi R. F. Thorne 1967-08 41893 Orange Trabuco Canyon. Comment
  RSA788245  Cuscuta ceanothi R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49627 Orange Santa Ana Mountains: San Juan Canyon, along Ortega Highway (74) across from San Juan Fire Station Comment
  UCR170447  Cuscuta ceanothi Jeffrey Ross, R. Zaka, P. Ross 1998-5-2 34 Orange Irvine, San Joaquin Wildlife Reserve, San Diego Creek; highly disturbed wash, sandy with high seasonal variation in water level, c. 5 mi from Pacific Ocean 6 Comment
  JEPS43026  Cuscuta salina L. M. Booth 1932-5-24 1096 Orange Newport Bay Comment
  POM48019  Cuscuta salina I. M. Johnston 1924-8-29 s.n. Orange 2.5 miles north of Balboa. Comment
  UC729888  Cuscuta salina var. papillata Carl B. Wolf 1932-7-7 Orange 0.6 mi w Hansen Rd. (Bixby Ave, Bryant Ranch) 7 Comment
  IRVC29789  Cuscuta subinclusa Mark A. Elvin, Dean Kelch 2006-12-9 5312 Orange Irvine; San Diego Creek, edge of San Joaquin Marsh, beside University Dr., between Campus Dr. and Hwy 73. Southern Coastal 3 Comment
  RSA725513  Cuscuta subinclusa Fred M. Roberts, Robert L. Allen 2007-9-28 6617 Orange Lomas de Santiago: above lower Santiago Cyn. wash along Santiago Cyn. Rd. just south of Irvine Mesa, 3.3 km N Bolero Lookout. 332 Comment
  SD234932  Cuscuta subinclusa A. C. Sanders, F. Roberts 2008-7-3 35688 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, along Windy Ridge Rd. at hairpin turn/road junction below huge sandstone boulder, 1.2 mi. SE of Walnut Canyon Resevoir. 274 Comment
  RSA759535  Cuscuta subinclusa Robt. Allen 2006-12-13 s.n. Orange Trabuco Canyon. About 2 mi. up from Live Oak Road, SW of Trabuco Truck Trail, in creekbed near base of north-facing hillside 395 Comment
  RSA743475  Cylindropuntia prolifera Fred M. Roberts, Carol A. Roberts 2008-9-28 7117 Orange Dana Point: Dana Point Headlands, CNLM Preserve, near Strands Road Gate, 0.8km WNW Marine Institute, Dana Point Harbor. 65 Comment
  RSA758901  Cynara cardunculus subsp. flavescens A. C. Sanders, Fred M. Roberts 2008-6-17 35474 Orange Lomas de Santiago, East Loma Ridge Spur Road near Hicks Cyn. Haul Rd. 353 Comment
  CDA22562  Cynodon dactylon J. B. Anderson 1966-4-18 6000 Orange Mac Arthur Boulevard near Red Hill Road. 0 Comment
  RSA0042531  Cynodon dactylon Fred M. Roberts 2013-5-30 7778 Orange Lomas de Santiago: Santiago Creek wash, at Santiago Canyon Road bridge (south side), 0.3km W jct. Silverado and Santiago Canyon Roads. 299 Comment
  SD39904  Cynodon dactylon E. A. Purer 1932-8-31 4868 Orange Comment
  RSA232217  Cynodon dactylon James Henrickson 1970-7-24 4992 Orange 2 miles NW of Huntington Beach around small freshwater industrial pond at eastern margin of Bolsa Chica Salt Marsh along Huntington Beach Mesa. 0 Comment
  RSA539371  Cyperus eragrostis Fred M. Roberts, D. Willick 1988-9-16 4136 Orange Peralata Hills: Oak Canyon Nature Center, Upper Walnut Canyon, 1.0 kilmeter N Robbers Peak. 180 Comment
  UC729936  Cyperus eragrostis Carl B. Wolf 1932-6-13 3721 Orange Malvern & Nicholas Aves. Fullerton 53 Comment
  CHSC116492  Cyperus eragrostis R. F. Thorne; E. W. Lathrop, W. Wisura 1977-7-8 49572 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74). Comment
  IRVC29698  Cyperus esculentus Mark A. Elvin, Barry S. Nerhus 2006-11-4 5244 Orange Huntington Beach; 1.5 km SW of Wintersburg, SW of jct Slater and Goldenwest; Shipley Nature Center. Southern Coastal 1 Comment
  RSA599641  Cyperus esculentus Fred M. Roberts, P. Barrett, G. Bastillos 1995-7-25 4970 -B 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
  UCSB54127  Cyperus esculentus Marsh, K. 1986-10-10 Orange Yorba Linda; Santa Ana Canyon, north side of the Santa Ana River, Featherly Park 115 Comment
  UC729958  Cyperus laevigatus Carl B. Wolf 1932-7-2 3812 Orange 1/8 mi. below La Vida Springs (Carbon Canyon); Carbon Canyon 213 Comment
  CAS-BOT-BC114242  Cyperus laevigatus J. Ewan 1931-10-3 5197 Orange Choking stream bed below La Vida Soda Springs, Carbon Canyon. Comment
  UCSB56512  Cyperus niger Marsh, G.; Marsh, K. 1977-11-21 Orange Santa Ana Mts.; San Juan Hot Springs Comment
  CAS-BOT-BC113820  Cyperus niger var. capitatus John Thomas Howell 1927-7-19 2800 Orange Santa Ana River Bottom, Santa Ana Canyon. 152 Comment
  RSA450865  Cyperus odoratus Gordon Marsh, Karlin G. Marsh 1977-11-21 s.n. Orange Santa Ana Mountains: San Juan Hot Springs. Comment
  CAS-BOT-BC538088  Cyrtomium falcatum R. E. Riefner, Jr. 2012-2-2 12 -19 Orange City of Dana Point, cliff and rocky intertidal area N 0.2 mi of Salt Creek lagoon 8 Comment
  RSA739276  Cyrtomium falcatum R. E. Riefner 2009-1-3 83 Orange Orange County: city of Newport Beach, N Star Beach, vicinity of N Star Ln and White Cliffs Dr. 4 Comment
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Dec 20 2012
  SD260849  Cyrtomium falcatum R. E. Jr. Riefner 2012-2-2 12 19 Orange City of Dana Point, cliff and rocky intertidal area N 0.2 mi of Salt Creek lagoon. 9 Comment
  SEINET13203173 Image available Cyrtomium falcatum R. E. Riefner Jr. 2012-1 12 -19 Orange City of Dana Point, cliff and rocky intertidal area N 0.2 mi of Salt Creek lagoon. 9 Comment
  UCD169090  Cyrtomium falcatum R. E. Reifner Jr. 2011-7-1 11- 83 Orange City of Newport Beach, beach area west of the end of Cameo Shores Road; south ca. 1 mi from Poppy Avenue. 1 Comment
  UCR240195  Cyrtomium falcatum R. E. Riefner Jr. 2012-1-16 12- 5 Orange South Coast, city of Newport Beach, Corona Del Mar, beach area west of Morning Canyon Road 1 Comment
  CAS-BOT-BC190451  Dactylis glomerata Carl B. Wolf 1932-6-13 3715 Orange Fullerton, Rose Drive. 53 Comment
  UCR157694  Dactylis glomerata Adrian Wolf 1998-5-15 269 Orange South Coast, Lambert Reservoir, north of El Toro Marine Corps Air Station 134 Comment
  IRVC29795  Datura stramonium Mark A. Elvin, Dean Kelch 2006-12-9 5321 Orange Irvine; San Diego Creek, edge of San Joaquin Marsh, beside University Dr., between Campus Dr. and Hwy 73. Southern Coastal 3 Comment
  RSA421914  Datura wrightii N. C. Cooper 1942-11-9 886 Orange Balboa. Comment
  RSA470786  Daucus pusillus M. B. Dunkle 1933-4-9 3281 Orange Dana Point Comment
  RSA699551  Daucus pusillus J. Vlahos s.n. Orange Santiago Canyon Comment
  UCR100443  Daucus pusillus B. G. Pitzer 1996-4-30 2780 Orange South Coast, Upper Newport Bay, Calif. Dept. Fish & Game Ecological Reserve, off (W of) Jamboree Road 6 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
  RSA761936  Daucus pusillus Robt. Allen 2005-4-30 12497 Orange Caspers Wilderness Park, East Ridge Trail. 175 Comment
  CAS-BOT-BC299323  Deinandra fasciculata C. B. Wolf 1932-7-2 3811 Orange Valencia Ave., Olinda opposite the Olinda Pilgrim Church 152 Comment
  CAS-BOT-BC299332  Deinandra fasciculata L. R. Abrams 1917-6-23 6568 Orange Balboa Comment
  CAS-BOT-BC414245  Deinandra fasciculata R. E. Riefner, Jr. 2014-7-5 14 -216 Orange City of San Clemente, San Clemente State Beach, SSW ca. 100 m from the intersection of Ave. Calafia and South Ola Vista Rd. 40 Comment
  CHSC26108  Deinandra fasciculata James Henrickson 1970-7-24 5001 Orange 3 miles NW of Huntington Beach near sandy 'Rabbit' Island in Bolsa Chica Salt Marsh near Inner Bolsa Bay. Roadside. 0 Comment
  CHSC26109  Deinandra fasciculata Roger Shelby 1970-8-22 Orange Ca. 4 mi. N. of Huntington Beach, 1 1/2 mi. So. of Warner Ave. off Pacific Coast Hwy. in Bolsa Bay area. 0 Comment
  UC579523  Deinandra fasciculata A. Lewis 1934-4-1 403 Orange Canada Gubernadora Corona Quadrangle, Canada Gubernadora 579 Comment
  SBBG80998  Deinandra fasciculata G. Sampson 1985-4-23 85 -362 Orange dry ridge W end of Telegraph Cyn Comment
  RSA759114  Deinandra kelloggii Robt Allen, Linnell R. Allen 2008-7-27 s.n. Orange Long Canyon Watershed, along Long Canyon Road, 128 m SE of junction with spur to Mystic Oaks (McConville Camp), 0.48 air miles upslope from junction with Ortega Hwy (SR74). 749 Comment
  RSA0073652  Deinandra paniculata Fred M. Roberts 2014-7-25 7882 Orange South Coastal Plain: San Joaquin Hills: Laguna Canyon, Nix Nature Center, Laguna Coast Wilderness Park, about 4.4 km E Signal Peak. 126 Comment
  UCR274558  Deinandra paniculata R. E. Riefner Jr. 2014-6-3 14- 144 Orange City of Laguna Beach, Moulton Meadows, NE 0.1 mi. from Del Mar Ave. and Balboa Ave. along Mentally Sensitive Trail 266 Comment
  RSA724055  Deinandra paniculata R. E. Riefner 1994-9-6 94 -552 Orange City of Dana Point, Dana Hills, vicinity of Dana Hills High School. 27 Comment
  UC729868  Delphinium cardinale Carl B. Wolf 1932-7-2 3821 Orange 1/8 mi below La Vida Springs; Carbon Canyon 213 Comment
  RSA787104  Delphinium parryi Keith E. Hoffmaster 1928-5-29 497 Orange San Onofre. CP5. Comment
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Nov 19 2013
  UCR220962  Delphinium parryi Dick Newell, Don Millar, Ashley Nelson 2010-6-8 24 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Limestone Canyon Rd. at junction with Dripping Springs Rd., 1/2 mile SW of Silverado Rd. and Santiago Rd. 305 Comment
  RSA400033  Delphinium patens subsp. hepaticoideum Albert J. Perkins 1913-4-19 s.n. Orange Trabuco Canyon. 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
  RSA171107  Dendromecon rigida subsp. rigida Robert F. Thorne 1963-7-26 32833 Orange Santa Ana Mts., Cleveland National Forest, Trabugo District. 1189 Comment
  RSA697422  Dentaria integrifolia R. H. McArthur 1934-3-3 62 Orange Forks of Laguna Canyon. Comment
  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
  RSA697472  Descurainia pinnata Elisabeth Norland 1929-3-3 s.n. Orange Cypress, Calif-Orange Rd. Comment
  CAS-BOT-BC43188  Descurainia pinnata subsp. brachycarpa Helen D. Geis 1902-1-1 530 Orange Santiago Creek. Comment
  UCR231163  Dicentra chrysantha Dick Newell, Judy Booth 2011-6-26 194 Orange Peninsular Range; Santa Ana Mtns., Long Canyon Rd., NW of Hwy 74, Cleveland National Forest 965 Comment
  RSA1322  Dicentra ochroleuca J. T. Howell 1928-7-10 1096 Orange Black Star Canyon, Santa Ana Mts. 701 Comment
  RSA2093  Dicentra ochroleuca B. D. Stark 1931-5-23 2228 Orange Santa Ana river bottom, SW of Ranch Houses, Rancho Santa Ana 122 Comment
  RSA433600B  Dicentra ochroleuca Freda Detmers 1931-6-19 s.n. Orange Santa Ana Valley. Comment
  HSC3006  Dichelostemma capitatum subsp. capitatum J. W. Johnson 1961-3-29 Orange Newport Beach Comment
  UCR188938  Dichondra micrantha Robert DeRuff 2006-6-1 313 Orange Newport Beach, Upper Newport Bay, 23rd Street on west side of the Bay 11 Comment
  RSA702763  Dichondra occidentalis Scott D. White, Michael Honer 2004-5-17 10389 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
  POM202523  Digitaria sanguinalis L. M. Booth 1932-6-7 1210 Orange Balboa Island. Comment
  RSA734607  Digitaria sanguinalis Keith E. Hoffmaster 1933-10-8 280 Orange Santa Ana Comment
  UCR215301  Dimorphotheca sinuata Fred M. Roberts 2008-4-22 6924 Orange Lomas de Santiago, Loma Ridge, upper Hicks Canyon, along Haul Road, 0.8 km WNW and 3.2 km east of Rattlesnake Reservoir Dam 302 Comment
  CAS-BOT-BC151044  Diplacus brevipes John Thomas Howell 1927-6-5 2429 Orange Southern Puente Hills in the Santa Ana [Canon] Canyon 152 Comment
  CAS-BOT-BC152060  Diplacus longiflorus H. E. McMinn 1949-7-9 5598 Orange Ca. 2 miles east of San Juan Capistrano, San Juan Pass, Highway 74 Comment
  SD72857  Diplacus longiflorus F. R. Fosberg 1931-6-19 S 5128 Orange Carbon Canyon, Puente Hills, canyon wall Comment
  RSA66079  Diplotaxis tenuifolia W. L. Jepson 1929-8-29 s.n. Orange Santa Ana. Comment
  UCSB36210  Distichlis littoralis Ferren, Wayne 1980-8-27 Orange Newport Backbay, W side of Backbay Dr ca 1.5 kmm NE of Rt 1; Newport Beach Comment
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Aug 7 2010
  RSA685922  Distichlis spicata Fred M. Roberts 2003-3-27 5632 Orange Rancho Mission Viejo:Donna O'Neill Land Conservancy, western slopes of Chistianitos Canyon, 0.25km N Sycamore Gate 0.13km W Cristianitos Road 116 Comment
  SEINET182346 Image available Distichlis spicata Lawrence M. Booth 1932-5-25 1116 Orange Balboa Ilsand Newport Bay Comment
  UC971746  Distichlis spicata L. M. Booth 1932-5-25 1116 Orange Balboa Island, Newport Bay Comment
  RSA610234  Dodecatheon clevelandii Fred M. Roberts 1997-2-7 4976 Orange Rancho Mission Viejo: Calif. Rte. 74 circa 6.8 km E Interstate 5 ( San Juan Capistrano) opposite the mouth of Canada Gobernadora, 1.2km NE Viejo Survey Mark. 88 Comment
  UCSB14911  Dodecatheon clevelandii Breedlove, Dennis 1962-3-9 Orange 4.4 miles east of San Juan Capistrano on State 74 112 Comment
  SEINET5500867 Image available Dodecatheon clevelandii Sally Walker 1998-3-23 Orange Quail trail Wm casper park Comment
  CAS-BOT-BC41674  Draba cuneifolia var. integrifolia Ira L. Wiggins 1966-2-25 20477 Orange Firestone Boy Scout Reservation east of Brea. Comment
  POM488  Draba cuneifolia var. integrifolia C. F. Baker 1904-4-1 4126 Orange Anaheim. Comment
  IRVC128  Dryopteris arguta C. Thompson 1965-4-15 Orange Trabuco Canyon. Santa Ana Mountains Comment
  IRVC22501  Dryopteris arguta Fred M. Roberts 1985-4-30 1673 Orange Laguna Beach: Temple Hill; at margin of "Dripping Springs Canyon"; 0.4km NNE Top of the World School. Southern Coastal 255 Comment
  IRVC23909  Dryopteris arguta Fred M. Roberts, R. L. Allen 1985-8-19 2136 Orange Mission Viejo: lateral to Engilish Canyon along Vista de Lago Drive; 3.4km ENE El Toro Fire Station. Southern Coastal 218 Comment
  RSA0014995  Dryopteris arguta Fred M. Roberts 2008-5-14 6962 Orange Lomas de Santiago: Loma Ridge, upper Bee Flat Canyon below Loma Ridge Rd., 1.3 km N Bee Peak and 5.4 km NW Bolero Lookout, Irvine Ranch Conservancy. 337 Comment
  UCR222640  Dryopteris arguta D. E. Bramlet 2008-4-1 4138 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, upper Hicks Canyon, 24 m south of the Haul Road 302 Comment
  RSA791466  Dryopteris arguta Keith E. Hoffmaster 1928-5-29 36 Orange San Onofre. Comment
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Nov 19 2013
  CAS-BOT-BC109565  Dudleya blochmaniae subsp. blochmaniae Reid Moran 1950-4-24 3388 Orange San Clemente. Comment
  UCR159830  Dudleya cymosa Valerie Soza, LeRoy Gross 1999-6-10 517 Orange Santa Ana Mountains, Southwestern extension of Modjeska Peak, off dirt road to summit, off Main Divide Road 1555 Comment
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Jun 15 2013
  UC806718  Dudleya edulis R. V. Moran 1948-6-23 3097 Orange n-facing cliff near mouth Aliso Canyon (s of Laguna Beach); ; near mouth of Aliso Canyon, S of Laguna Beach, Orange Co. 7 Comment
  POM219195  Dudleya lanceolata L. C. Wheeler 1932-6-25 862 Orange Newport Bay. 6 Comment
  POM6592  Dudleya lanceolata P. A. Munz 1919-5-4 s.n. Orange Laguna canyon Comment
  RSA637493  Dudleya lanceolata Valerie L. Soza, LeRoy Gross 1999-6-8 504 Orange Santa Ana Mountains: Santiago and Modjeska Canyons, above Tucker Wildlife Sanctuary, above the town of Modjeska 518 Comment
  RSA716782  Dudleya lanceolata Fred M. Roberts, Michelle Balk, Robert Allen, Chris Barnhill 2004-6-19 6063 Orange Santa Ana Mtns.: Holy Jim Cyn.: Holy Jim Trail, 3.1km SE summit of Santiago Peak. 695 Comment
  RSA769617  Dudleya lanceolata E. W. Lathrop 1974-6-27 7423 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  UC1090403  Dudleya lanceolata Milo S. Baker 1958-5-20 13302 Orange Newport Bay Comment
  UC536907  Dudleya lanceolata Lawrence M. Booth 1932-6-9 1188 Orange Newport Bay Comment
  UCR175053  Dudleya lanceolata Vanessa Lee 2005-4-24 s.n. Orange South Coast, Crystal Cove, Laguna Beach, above Pacific Coast Highway 61 Comment
  UCR59229  Dudleya lanceolata Robert McKernan 1989-5-18 s.n. Orange Santa Ana Mtns Foothills, Serrano Creek, 4 km north of Trabuco Rd. at the end of Lake Forest Rd. 6 km east of El Toro Military Base 274 Comment
  UCSB37819  Dudleya lanceolata Roos, John 1965-6-16 Orange Dana Point Comment
  RSA397815  Dudleya multicaulis Thekla Mohr 1920-06 s.n. Orange Hills near Laguna Comment
  RSA550600  Dudleya multicaulis Fred M. Roberts 1989-4-26 4313 Orange Santa Ana Mts.; ridge N of Santiago Canyon W of Blind Canyon, 9.5km SW Sierra Peak, ca. 1.7km NW Irvine Lake spillway. 247 Comment
  UCR222628  Dudleya pulverulenta T. B. Salvato 2010-10-27 5103 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
  UCR224165  Dudleya pulverulenta subsp. pulverulenta Fred M. Roberts 2008-7-10 7076 Orange South Coast, Dana Point Headlands, CNLM Preserve, near Strands Road Gate, 0.8 km west-northwest of Marine Institute, Dana Point Harbor 65 Comment
  UCR238166  Dudleya pulverulenta subsp. pulverulenta Mark A. Elvin, Peter A. Bowler 2003-6-28 2956 Orange Southern Coast, Irvine, San Joaquin Freshwater Marsh, adjacent to UCI campus, SSE of intersection of Jamboree Blvd. and Campus Dr. 2 Comment
  IRVC22787  Dudleya stolonifera Fred M. Roberts 1985-5-16 1815 Orange mouth of Laurel Canyon, 4.0km SE Signal Peak, San Joaquin Hills 85 Comment
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Mar 3 2015
  SBBG96432  Dudleya stolonifera R. Moran 1977-6-13 24230 Orange Willow Cyn, tributary of Laguna Cyn 125 Comment
  SD114480  Dudleya stolonifera Darley F. Howe 1967-5-30 4363 Orange Near mouth of Aliso Canyon. Comment
  RSA708444  Echinochloa crus-galli Mark Elvin 2004-5-2 3426 Orange Southern Coastal, Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7 km (air) NNW of UC Irvine Campus center. 3 Comment
  RSA697609  Echinocystis macrocarpa Effie Jessup s.n. Orange Arch Beach Hills Comment
  SD133156  Echium fastuosum A. C. Sanders 1990-10-6 10183 Orange Newport Bay, North Star County Beach area on the southwest end of the bay, ca. 2 km inland of Highway 1 0 Comment
  RSA800668  Eclipta prostrata Justin M. Wood 2010-9-29 2753 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
  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
  RSA708812  Elatine brachysperma Fred M. Roberts, Robert L. Allen, Chris Barnhill, Carol A. Roberts 2005-4-10 6165 Orange Costa Mesa: Fairview Park, west of north end of Canyon Drive, c.a. 0.2km WNW Marison Special Education Center (Canyon Sch. on topos). 24 Comment
  UC1543115  Elatine brachysperma Donald G. Nelson 1935-4-15 302 Orange on road from Garden Grove to Costa Mesa converging near Costa Mesa (toward main highway from Santa Ana) Comment
  UC552355  Elatine brachysperma H. H. Tracy 1935-4-10 Orange n Cotsa Mesa Comment
  RSA799624  Eleocharis acicularis Justin M. Wood 2011-4-12 3664 Orange South Coast: City of Costa Mesa. Fairview Park, just WNW of Marison Special Education Center. 24 Comment
  RSA86  Eleocharis geniculata J. T. Howell 1927-7-18 422 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  CAS-BOT-BC168149  Eleocharis montevidensis A. C. Sanders; Fred M. Roberts; Michelle Balk 2006-7-20 33003 Orange Peninsular Range; Santa Ana Mtns.: San Juan Canyon, from Lower San Juan Picnic Area to ca. 1 mile downstream, parallel to Hwy 74 and near Riverside Co. line 396 Comment
  RSA588792  Eleocharis montevidensis var. montevidensis Fred M. Roberts, D. Bontrager 1990-4-18 4569 Orange Rancho Mission Viejo: Canada Chiquita, east side of canyon near mouth, 2.7 kilometers SSE Median Rancho Survey Marker; UTM Z11 37 10 000N, 4 43 800m E 79 Comment
  RSA789589  Eleocharis montevidensis var. parishii Robert F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49633 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs Comment
  RSA665951  Eleocharis palustris Fred M. Roberts, Michelle Lee, Kristen Szabo 2001-4-13 5422 Orange Rancho Mission Viejo: South of San Juan Creek, 0.4km ESE Median Rancho Survey Marker. PCR Vernal Pool 7. 238 Comment
  RSA642520  Eleocharis radicans D. E. Bramlet 1998-7-16 2653 Orange San Juan Creek, City of San Juan Capistrano. 2.3km east of the San Diego freeway (I-5). 91m south of the end of Avenida Siega and 152m north of San Juan Creek Road. 38 Comment
  RSA743554  Eleusine coracana subsp. africana R. E. Riefner 2005-9-20 5 -671 Orange City of San Clemente, along El Camino Read ca. 0.15 mi S of intersection with Los Molinos Rd. 35 Comment
  RSA725461  Eleusine indica Fred M. Roberts 2007-8-6 6556 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
  RSA697744  Ellisia chrysanthemifolia R. H. McArthur 1934-4-7 s.n. Orange Ladd Canyon. Comment
  RSA798184  Elymus glaucus R. F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49597 -a Orange Santa Ana Mountains: rocky ravine tributary to San Juan Canyon, along Ortega Highway (74) about 2 miles above San Juan Fire Station. 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
  SEINET10841966  Elymus stebbinsii subsp. stebbinsii LeRoy R. Abrams Abrams 1822 Orange Santiago Pk. Comment
  POM294120  Encelia californica Lyman Benson 1946-4-27 12058 Orange Corona Del Mar; Drainage area: Pacific Ocean. 15 Comment
  RSA732174  Encelia californica A. C. Sanders, Fred M. Roberts 2008-3-25 34544 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  SEINET11859822  Encelia californica J. F. Bright, Wyman, C. 1933-3-5 8011 Orange in Santa Ana foothills Comment
  RSA723970  Epilobium brachycarpum R. E. Riefner Jr. 2005-10-5 05 -705 Orange City of Yorba Linda; Santa Ana River, Horseshoe Bend, near La Palma Rd. and Via Del Rio Rd. 99 Comment
  SD236344  Epilobium canum A. C. Sanders, Fred M. Roberts 2008-9-18 36084 Orange Peninsular Range; Santa Ana Mtns. Foothills: Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge. 320 Comment
  POM200869  Epilobium canum subsp. canum Carl B. Wolf 1933-8-24 5384 Orange Santa Ana Mountains; Along road S of Bedford Peak on way to Santiago Peak. 1067 Comment
  UCR193492  Epilobium ciliatum A. C. Sanders, T. B. Salvato 2008-5-13 35359 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
  UCR237923  Epilobium ciliatum Dick Newell, Judy Booth 2012-6-24 276 A Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, on Maple Springs Road 1.9 mi. NE of Maple Springs gate 817 Comment
  POM3140  Epilobium ciliatum subsp. ciliatum D. L. Crawford 1916-7-26 s.n. Orange Laguna Canyon. Comment
  RSA731933  Epilobium ciliatum subsp. watsonii Fred M. Roberts, Sandy Leatherman 2007-11-27 6677 Orange Yorba Linda: drainage channel on east side of Amberdale Dr. ca. 0.3 km S Fairmont Blvd. 118 Comment
  UCR175445  Epipactis gigantea Mark A. Elvin, A. C. Sanders 2005-9-2 4495 Orange Peninsular Ranges, Santa Ana Mtns: Mouth of Lion Canyon, just upstream from Lower San Juan Campground 457 Comment
  IRVC1250  Equisetum hyemale subsp. affine L. Burns 1965-4-21 Orange Balboa Peninsula. Newport Beach Comment
  RSA699858  Equisetum laevigatum Dorothy Parsons 1932-4-5 s.n. Orange Santa Ana River Bank 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
  UCR191346  Eragrostis barrelieri A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34633 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
  CAS-BOT-BC204633  Eragrostis mexicana subsp. virescens Ira L. Wiggins 1965-11-7 20358 Orange On west side of State College Blvd., near Troy High School, Fullerton Comment
  CAS-BOT-BC412826  Eragrostis mexicana subsp. virescens R. F. Thorne; E. W. Lathrop; W. Wisura 1977-7-8 49567 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74) Comment
  UCD63541  Eragrostis mexicana subsp. virescens Frank W. Gould 1944-6-25 2362 Orange Tournat Ranch, Garden Grove. Comment
  JEPS9642  Eriastrum sapphirinum A. G. Vestal 1947-7-12 Orange Tributary of Trabuco Creek Comment
  RSA0121315  Eriastrum sapphirinum subsp. dasyanthum L. M. Booth 813 Orange Santa Ana Canyon. Comment
  RSA0122942  Eriastrum sapphirinum subsp. dasyanthum Minor Warne 1934-5-19 s.n. Orange Trabuco. PR8. Comment
  SD28142  Ericameria pachylepis Carl B. Wolf 1931-10-30 2943 Orange Rancho Santa Ana. 206 Comment
  POM201508  Ericameria palmeri var. pachylepis L. M. Booth 811 Orange Santa Ana Canyon Comment
  RSA0008409  Ericameria palmeri var. pachylepis A. C. Sanders, Fred M. Roberts, Jutta Burger 2009-10-21 37197 Orange Lomas de Santiago, Limestone Canyon, west of Limestone Canyon Rd. 366 Comment
  SD127546  Ericameria pinifolia Reid Moran, Gordon Marsh and Jack Reveal 1977-6-13 24231 Orange Willow Canyon, tributary of Laguna Canyon 124 Comment
  UCR261718  Erigeron foliosus Dick Newell, Judy Booth 2014-5-15 372 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, Maple Springs Rd./Silverado Canyon Rd., 0.87 road miles east of the lower Maple Springs gate 623 Comment
  CAS-BOT-BC296212  Erigeron foliosus var. foliosus John Thomas Howell 1927-6-1 2405 Orange Southern Puente Hills in teh SAnta Ana Canyon Comment
  RSA648191  Erigeron foliosus var. stenophyllus Karl Price 1988-5-7 30 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
  SD248335  Erigeron karvinskianus R. E. Riefner Jr. 2013-1-16 13 15 Orange City of Newport Beach, vicinity of Poppy Ave. and Ocean Blvd., coastal bluff at Little Corona Beach. 7 Comment
  UCR188939  Eriobotrya japonica Robert DeRuff 2004-1 546 Orange Newport Beach, Upper Newport Bay, Big Canyon on north-facing bank below Park Newport Apartments 16 Comment
  CAS-BOT-BC189071  Eriodictyon crassifolium John Thomas Howell 1927-6-26 2614 Orange Claymine Canon [Canyon], N Santa Ana Mountains Comment
  UCSB49524  Eriodictyon crassifolium Jenkins, Scott 1983-3-4 Orange 2 miles up Modjeska Canyon Rd. on west side 243 Comment
  CAS-BOT-BC189119  Eriodictyon crassifolium var. crassifolium Le Roy Abrams 1901-4-1 1363 Orange San Fernando Mountain Comment
  JEPS43  Eriodictyon crassifolium var. crassifolium Alice King May 1908 Orange Orange Park mouth of Santiago Canyon (mouth of Santiago Canyon); Santa Ana Mountains, , Orange Park Comment
  RSA542526  Eriogonum elongatum Fred M. Roberts 1986-11-5 3205 Orange Santa Ana Mountains: Upper Mabey Canyon near top of Skyline Dr., 2.7 km SE Sierra Peak, NE of Oak Flat. 259 Comment
  UCR239655  Eriogonum elongatum var. elongatum Fred M. Roberts 2012-4-27 7542 Orange Lomas de Santiago, Loma Ridge, west of SR 241, tributary to 'Las Flores' Canyon, near East Loma Ridge Road, 1.6 km southwest Irvine Lake Park Campground and 1.2 km east-southeast of Orange County Emergency Operations Center, Hill 1311 308 Comment
  IRVC28779  Eriogonum fasciculatum Caroline Tran 2006-2-4 1 Orange San Joaquin Marsh; NW bluff edge Southern Coastal 5 Comment
  RSA0031722  Eriogonum fasciculatum Caralisa Breidenbaugh, Mark Breidenbaugh 1992-5-25 63 Orange 1/2 mile south of Chino Hills State Park Boundary. 228 Comment
  RSA734763  Eriogonum fasciculatum subsp. foliolosum A. C. Sanders, T. B. Salvato 2008-5-13 35343 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
  UCR217455  Eriogonum fasciculatum subsp. foliolosum Mark A. Elvin 2003-1-26 2228 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-BC253218  Eriogonum fasciculatum var. fasciculatum Joseph Andorfer Ewan 1932-7-28 7705 Orange Corona del Mar Comment
  RSA0126615  Eriogonum fasciculatum var. fasciculatum Fred M. Roberts 2012-4-27 7498 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
  UCD105100  Eriogonum fasciculatum var. fasciculatum K. M. Meyer; A. Townesmith 2007-3-10 4 Orange Cleveland National Forest, 0.5 mi. N. Main Divide Rd./NF3S04, off Hwy. 74. Elsinore Mountains, ridge top. 917 Comment
  CAS-BOT-BC249945  Eriogonum fasciculatum var. foliolosum David D. Keck 1932-9-30 1903 Orange 2 mi. W. of Laguna Beach Comment
  RSA542525  Eriogonum fasciculatum var. foliolosum Fred M. Roberts 1988-5-13 3971 Orange Lomas de Santiago: Loma Ridge, Upper Limestone Canyon near spring, 2.3 km NW Bolero Lookout. 439 Comment
  JEPS56922  Eriogonum gracile Lawrence M. Booth 1932-8-9 1369 Orange Newport Bay Comment
  UC534937  Eriogonum parvifolium Susan G. Stokes 1932-8-29 21 Orange Doheney's Palisades, near San Clemente, San Diego Co. Comment
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Oct 21 2009
  UCR207545  Eriogonum parvifolium O. F. Clarke, Roger E. Reinke 2004-11-14 s.n. Orange South Coast, Newport Back Bay 3 Comment
  CAS-BOT-BC263016  Eriogonum thurberi P. C. Everett 1935-5-17 6866 Orange Rancho Santa Ana, Santa Ana Canyon 1/4 mi. So. of Orange County Plant Sanctuary 121 Comment
  RSA13107  Eriogonum thurberi Percy C. Everett 1935-5-17 6866 Orange Rancho Santa Ana, Santa Ana Canyon, 1/4 mi. S of Orange County Plant Sanctuary. 122 Comment
  UC912801  Eriogonum thurberi E. R. Johnson 1933-6-22 4999 Orange river bottom s Walnut Grove; Rancho Santa Ana, Santa Ana Canyon 121 Comment
  CAS-BOT-BC297329  Eriophyllum confertiflorum John Thomas Howell 1927-6-26 2592 Orange Claymine Canon, N Santa Ana Mts 243 Comment
  CAS-BOT-BC297331  Eriophyllum confertiflorum L. R. Abrams 1901-6-15 1834 Orange Santiago Peak Comment
  VVC62  Eriophyllum confertiflorum P. J. MacKay 1990-5-25 s.n. Orange Peninsular Range, Hwy 74 near San Juan Hot Springs 198 Comment
  UC536892  Eriophyllum confertiflorum var. confertiflorum Lawrence M. Booth 1932-5-12 1042 Orange Newport Bay Comment
  POM4917  Eriophyllum multicaule Robinson, Crocker 1916-3-28 s.n. Orange Santa Ana Mts. Comment
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Sep 3 2011
  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
  RSA590950  Erodium botrys Fred M. Roberts 1991-5-2 4774 Orange San Joaqui Hills, Laguna Canyon, Laguna Laurel, Just W of Laguna Canyon Road, 2km N jct El Toro Road, 4.5km E Signal Peak. 110 Comment
  UCSB3526  Erodium botrys Wedberg, H. 1958-3-29 Orange 1/2 mile east of coast HWY on McArthur Blvd., Corona del Mar Comment
  UCSB52457  Erodium botrys Fritzke, Sue; Roberts, Fred 1982-4-3 Orange Dana Point; hills; 1.0km N Dana Hills High School; 1.9km W Marco Forster Junior High School 30 Comment
  UCR192496  Erodium cicutarium A. C. Sanders, Fred M. Roberts 2008-3-25 34564 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  UCR192488  Erodium moschatum A. C. Sanders, Fred M. Roberts 2008-3-25 34555 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  RSA125659  Erodium moschatum R. Weatherby 1950-2-25 1031 Orange Near El Toro, east side of Orange County. Santa Ana Mts. 305 Comment
  RSA423  Erodium moschatum J. T. Howell 1928-2-7 824 Orange Near the ranch houses, Rancho Santa Ana 152 Comment
  CAS-BOT-BC41525  Erysimum capitatum Helen D. Geis 1902-1-1 528 Orange Santiago Creek. Comment
  CHSC1770  Erythranthe guttata S. Westerberg 1938-4-1 Orange San Juan canyon. Comment
  UCR230229  Eschscholzia californica Dick Newell, Don Millar 2011-3-15 080 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Agua Chinon Wash 219 Comment
  RSA0060574  Eschscholzia californica Darren Day, Hal Willis 1984-4-28 005 Orange Found growing at the side of Laguna Canyon Rd. exactly 2.5 miles outside of the city limits, heading north. Comment
  RSA0010840  Eucalyptus camaldulensis Fred M. Roberts, Sandy Leatherman 2007-11-27 6673 Orange Yorba Linda: Santa Ana Canyon, Santa Ana River wash, S of E La Palma Road near Via Lomas de Yorba Linda, about 0.6 km W Gypsum Cyn. bridge. 113 Comment
  UCR103193  Eucalyptus globulus Scott D. White 1997-3-26 4816 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
  UCR197691  Eucalyptus sideroxylon A. C. Sanders, Fred M. Roberts 2008-9-18 36077 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge 330 Comment
  CDA5158  Eucalyptus utilis D. G. Kelch 2006-12-9 6 .538 Orange Along Newport Back Bay Dr. in side canyon. Comment
  HSC13690  Eucrypta chrysanthemifolia J. W. Johnson 1961-4-2 Orange Newport Beach, along Upper Newport Bay. Comment
  SBBG40450  Eucrypta chrysanthemifolia var. chrysanthemifolia J. Ingram 1960-3-29 265 Orange 2 mi above O'Neill Park, Trabuco Cyn Comment
  RSA704429  Euphorbia albomarginata Fred M. Roberts, David E. Bramlet 2004-7-30 6086 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, Cristianitos Cyn. along Cristianitos Ck., 1.1 km SSW Gato Gate and 0.32km W Cristianitos Road. 73 Comment
  POM346910  Euphorbia crenulata Marcus E. Jones 1926-3-13 s.n Orange Santa Ana Canyon. Comment
  POM8655  Euphorbia crenulata P. A. Munz 1920-4-23 3728 Orange Santa Ana Mountains, Silverado Canon. 549 Comment
  UCR26989  Euphorbia crenulata E. W. Lathrop 1966-4-6 6143 Orange Cleveland National Forest, Trabuco Oaks, Trabuco Canyon 396 Comment
  CAS-BOT-BC202545  Euphorbia misella Joseph Andorfer Ewan 1932-7-28 7708 Orange Corona del Mar Comment
  RSA0038515  Euphorbia misera R. E. Riefner Jr. 2012-10-16 12 -518 Orange city of Dana Point, Dana Point Harbor, 'Bluff Top Trail' located near Camino Capistrano and Violet Lantern Streets 35 Comment
  RSA0106893  Euphorbia misera R. E. Riefner Jr. 2012-12-5 12 -587 Orange City of Dana Point, Dana Point Harbor, Dana Harbor Drive, near Cove Road. 8 Comment
  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
  UCR240164  Euphorbia misera R. E. Riefner Jr. 2012-12-5 12- 587 Orange South Coast, city of Dana Point, Dana Point Harbor, Dana Harbor Drive near Cove Road 9 Comment
  RSA797403  Euphorbia peplus Keith E. Hoffmaster 1928-5-3 s.n. Orange Santa Ana. Comment
  RSA0104833  Euphorbia polycarpa var. polycarpa A. S. Boughey 140 Orange Santa Ana Mountains: Ortega Hwy., ca 1 mi east of San Juan Guard Sta. Comment
  RSA773524  Euphorbia polycarpa var. polycarpa Fred M. Roberts 1999-5-14 5215 Orange Peninsular Ranges; Santa Ana Mts.: Lomas de Santiago, Loma Ridge; Upper Limestone Canyon on slopes above Bolero Spring, 2.4 km NNW Bolero Lookout. 451 Comment
  SD181549  Euphorbia serpens Louis C. Wheeler 1946-8-8 6225 Orange Imperial Highway 0.25 mile west of Caroline Ave., 2.0 miles eastsoutheast of Brea. Comment
  CDA1084  Euphorbia serpillifolia subsp. hirtula D. G. Kelch 2006-12-9 6 .534 Orange Along Newport Back Bay Dr. in side canyon. Comment
  JEPS52425  Euphorbia spathulata Alice King Apr 1908 Orange Santa Ana Mts. Comment
  JEPS30706  Euthamia occidentalis Peter H. Raven 1961-10-15 16856 Orange just n of U.S. Highway 91 along dyke along road to Yorba Linda 114 Comment
  RSA723485  Euthamia occidentalis R. E. Riefner 2006-11-12 06 -666 Orange City of Newport Beach, urban creek draining into San Diego Creek at confluence with Newport Bay; San Diego Creek at SR-73 overpass. 6 Comment
  UCR194561  Festuca A. C. Sanders 2008-4-29 35133 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, western end of Loma Ridge on road to sheriff's training facility, c. 1.5 mi. SW of Santiago Reservoir 335 Comment
  UCR207527  Festuca microstachys O. F. Clarke 2006-5-6 s.n. Orange Peninsular Range; Santa Ana Mtns., Coal Canyon 305 Comment
  UCR149450  Festuca pratensis Robert DeRuff 2000-1 522 A Orange South Coast, Newport Back Bay, W side of the Delhi Channel c. 300 ft S from the pedestrian bridge that crosses the channel at University Drive 15 Comment
  SD28080  Festuca temulenta E. R. Johnson 1932-5-18 3638 Orange Rancho Santa Ana Botanic Garden, east edge of grain field bordering Rancho. 198 Comment
  UCSB47953  Festuca temulenta Roberts, D. 1980-5-4 Orange 8 km N. Northern tip of Thunderbird Homes; Dana Point 61 Comment
  UCR241042  Ficus carica Robert DeRuff 2009-1 455 Orange South Coast, Upper Newport Bay, above Back Bay Dr. at Eastbluff North 7 Comment
  CAS-BOT-BC474738  Ficus microcarpa R. E. Riefner, Jr. 2015-8-29 15 -368 Orange City of Rancho Santa Margarita, Trabuco Marketplace, Rancho Santa Margarita Blvd. at Plano Trabuco 363 Comment
  CAS-BOT-BC502074  Ficus microcarpa R. E. Riefner, Jr. 2015-8-30 15 -376 Orange City of Anaheim, Pearson Park, near center of park, N of North Helena St. and West Cypress St 45 Comment
  CAS-BOT-BC502095  Ficus microcarpa R. E. Riefner, Jr. 2015-8-30 15 -381 Orange City of Anaheim, Pearson Park, SE section of park, N of N. Helena St, and W. Cypress St., near jct. of N. Lemon St., and W. Cypress St. 44 Comment
  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
  UC2046888  Ficus microcarpa R. E. Riefner Jr. 2015-8-27 15 -359 Orange City of Newport Beach, Corona del Mar, on Marguerite Ave. between Fifth Ave. and Fourth Ave. Comment
  RSA649060  Filago arizonica D. E. Bramlet 2000-4-5 2941 A Orange Ridgeline above the 'MWD' canyon, approximately 1.7 km southwest of Irvine Park. This locality is found 610m southeast of Weir Canyon and 152m southeast of the MWD access road. 88 Comment
  RSA542428  Filago californica Fred M. Roberts 1988-4-10 3908 Orange Lomas De Santiago: Loma Ridge, 1.0 kilometer N Bolero Lookout. 415 Comment
  RSA743373  Filago californica Fred M. Roberts 2008-4-9 6853 Orange Dana Point: Dana Point Headlands, CNLM Preserve near Outlook 2, 0.7 km W Marine Institute (Dana Point Harbor). 52 Comment
  IRVC25385  Filago gallica Fred M. Roberts 1987-4-3 3354 Orange San Joaquin Hills; Irvine; central Shady Canyon, 2.9km NE Signal Hill. Central coastal 107 Comment
Read comments
Feb 17 2017
  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
  OBI8010  Foeniculum vulgare Kurt R. Neisess 1975-12-21 Orange In the Fullerton Hills area Comment
  UCR186684  Foeniculum vulgare T. B. Salvato, Katie Kurtz, Mitch Provance 2006-10-15 1905 Orange South Coast, Irvine, San Diego Creek flood control channel, between Campus Drive and Michelson Drive 6 Comment
  UCR237931  Foeniculum vulgare Mark A. Elvin 2003-2-2 2257 Orange South Coast, San Joaquin Marsh, UCI campus SSE of intersection of Jamboree Blvd. and Campus Dr. 2 Comment
  HSC87010  Frangula californica Reid Moran 1975-7-18 22596 Orange Bottoms of Upper Trabuco Canyon, Santa Ana Mtns. 725 Comment
  SD247721  Frangula californica R. F. Thorne, C. W. Tilforth, E. W. Lathrop. 1977-4-27 49673 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. 456 Comment
  CAS-BOT-BC53334  Frangula californica subsp. cuspidata Carl B. Wolf 1933-8-24 5391 Orange Santa Ana Mts. Summit of Santiago Pk. 1731 Comment
  CAS-BOT-BC53336  Frangula californica subsp. cuspidata P. C. Everett 1935-6-18 7217 Orange Santa Ana Mts., Summit of Santiago Pk. 1731 Comment
  POM2924  Frankenia grandifolia D. L. Crawford 1916-7-26 s.n. Orange Aliso Canyon. Comment
  RSA186312  Frankenia grandifolia Joseph A. Ewan 1932-7-28 7701 Orange Corona Del Mar Comment
  SEINET6671085 Image available Frankenia grandifolia Lawrence M. Booth collection date not given 1037 Orange Newport Bay Comment
  JEPS30094  Frankenia salina L. M. Booth 1932-5-12 1037 Orange Newport Bay Comment
  SBBG72757  Frankenia salina M. N. Ackley -May-1926 358 Orange Sunset Beach 8 Comment
  RSA554469  Frasera parryi Don Pendleton 1992-5-16 92 -18 Orange Cleveland National Forest, NW of El Cariso, on trails near Flacoln Group Camp. 823 Comment
  POM13826  Fraxinus dipetala P. A. Munz 1922-4-28 5046 Orange Leach Canyon, Santa Ana Mountains 671 Comment
  POM6424  Fraxinus dipetala P. A. Munz, Street, Williams 1919-5-3 2667 Orange Santa Ana River Canyon. Comment
  UCR119309  Fraxinus dipetala R. E. Riefner Jr. 2000-2-19 20- 119 Orange Santa Ana Mountains, North Ranch Policy Plan Area. Fremont Canyon: north of Santiago Creek and immediately north of major stream fork 305 Comment
  POM9233  Fraxinus dipetala P. A. Munz, R. D. Harwood 1920-4-25 3737 Orange Santa Ana Mountains, Silverado Canyon. 549 Comment
  RSA0041476  Fraxinus velutina var. coriacea Fred M. Roberts, Carol A. Roberts 1988-7-5 4108 Orange Santa Ana Mts: San Juan Canyon, 0.4 km SW Lower San Juan Picnic Ground. 410 Comment
  UCR132979  Fritillaria biflora Adrian Wolf 2000-4-15 459 Orange Santa Ana Mtns., North Ranch Policy Plan Area, North Baker Canyon Road 335 Comment
  RSA652106  Fumaria officinalis Phil Goodwin 1948-2-6 s.n. Orange Found in an orchard 3 miles east of Orange. 122 Comment
  UCR29938.2  Fumaria parviflora Larry Summers 1983-4-18 s.n. Orange Tustin, Irvine Ranch, Field 120 at the intersection of Bryan and Culver Comment
  CAS-BOT-BC422467  Fumaria parviflora Ira L. Wiggins 1965-11-5 20327 Orange On N side of Chapman Avenue near intersection with Kraemer Road. Comment
  RSA0013915  Galium angustifolium Fred M. Roberts 2012-5-10 7579 Orange San Joaquin Hills: Buck Gully, south tributary, north slope Pelican Hill, just north of Pelican Hills Drive, 0.7 km N Pelican Hill summit. 154 Comment
  RSA758894  Galium angustifolium A. C. Sanders, Fred M. Roberts 2008-4-22 35005 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
  SD143727  Galium angustifolium Scott D. White 1997-3-28 4850 Orange Santa Ana Mts; above Modjeska Canyon: Proposed water tank site 424 Comment
  SEINET156171  Galium angustifolium Norman C. Cooper 1944-6-4 1372 Orange San Juan Canyon. 305 Comment
  SEINET269587  Galium angustifolium O. F. Clarke 1994-6-17 Orange Laguna Canyon. Comment
  UCSB48003  Galium angustifolium Roberts, Fred 1980-6-29 Orange Santa Ana Mtns., Viejo Canyon, 0.4km N Calif. Rte 74; 2.2km ENE San Juan Guard Station 341 Comment
Read comments
Oct 28 2018
  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
  RSA7473  Galium angustifolium subsp. angustifolium Carl B. Wolf 1933-8-24 5397 Orange Summit of Santiago Peak, Santa Ana Mountains. 1732 Comment
  RSA647956  Galium aparine Mark Breidenbaugh, Caralisa Breidenbaugh 1992-5-24 32 Orange 1000 ft. northwest of Chino Hills State Park Boundary. 244 Comment
  RSA700186  Galium aparine Minor Warne 1934-4-28 s.n. Orange Ladd Canyon-Santa Ana Mts. PR8. Comment
  VVC895  Galium aparine B. G. Pitzer 1997-3-25 3014 Orange San Joaquin Hills, Crystal Cove State Park, Pelican Point Area, grassland between Pacific Coast Hwy & the bike trail. 30 Comment
  UCSB56680  Galium nuttallii subsp. nuttallii Roberts, Fred 1984-1-29 Orange Laguna Niguel: Niguel Hill, 1.1 km. ENE Aliso Peak; 2.0 Km. SW Alicia Fire Station 260 Comment
  UCR215296  Galium parisiense Fred M. Roberts 2008-5-20 7133 Orange Lomas de Santiago, Loma Ridge, upper Limestone Canyon, 0.8 km NW of Bolero Spring and 3.1 km WNW of Bolero Lookout. Irvine Ranch Conservancy 467 Comment
  RSA274919  Galium parisiense R. John Little 1976-6-17 1757 Orange Mid Crow Canyon north of Burks Rd. Comment
  JEPS74654  Galium porrigens Lauramay T. Dempster and G. L. Stebbins 1967-3-21 4351 Orange 1 mi nw Cock's Corners (on road to Modjeska's Home, shallow canyon) Comment
  JEPS6547  Galium trifidum var. pacificum Lawrence M. Booth 1932-7-4 1244 Orange Newport Bay Comment
  CHSC39254  Garrya flavescens M. O. Dillon 1977-4-12 Orange Santa Ana Mts., Silverado Canyon. Comment
  RSA688864  Gastridium phleoides Fred M. Roberts, David E. Bramlet 2003-4-10 5643 Orange Rancho Mission Viejo: Donna O'Neill Land conservancy, Back Road, ridge between Cristianitos Cyn, and Segunda Deshecha Canada, 1.45km WNW Gato Gate. 216 Comment
  CDA5237  Gaura sinuata T. C. Fuller 1962-6-7 8873 Orange Veeh ranch, north of El Toro, ca. 11 miles southeast of Tustin. 0 Comment
  SEINET10728263  Gazania David B. Dunn 1971-8-13 Dunn 18118 Orange Cultivated plants vicinity of Laguna Beach. Comment
  UCR177952  Geranium carolinianum Scott D. White, Brian Leatherman 1997-5-6 5037 Orange Peninsular Ranges; Santa Ana Mtns., Lomas de Santiago; Santiago Canyon area; unnamed tributary to Santiago Creek flowing from the SW, directly west of Pancho Canyon 396 Comment
  UCR240189  Geranium incanum var. multifidum R. E. Riefner Jr. 2012-12-5 12- 588 Orange South Coast, city of Dana Point, Dana Point Harbor, Dana Harbor Drive near Cove Road 9 Comment
  UCR241091  Geranium incanum var. multifidum R. E. Riefner Jr. 2012-6-16 12- 404 Orange South Coast, City of Dana Point, Dana Point Harbor Drive at Island Way 11 Comment
  POM6410  Gilia angelensis P. A. Munz, L. T. Street, G. Williams 1919-5-3 2628 Orange Santa Ana River Canyon. Comment
  UCR192456  Gilia angelensis A. C. Sanders, Fred M. Roberts 2008-3-25 34574 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
  SEINET6099462  Gilia capitata Unknown 1944-6-4 1365 Orange Elsinore Mountain. Lookout at top. Roadside. 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
  RSA698353  Gilia multicaulis Snow 1929-2-25 s.n. Orange E. of Stanton. Comment
  RSA698354  Gilia peduncularis R. H. McArthur 1934-4-14 s.n. Orange Laguna Canyon. Hillside. Comment
  RSA587866  Githopsis diffusa subsp. candida Fred M. Roberts 1990-5-22 4634 Orange Santa Ana Mountains; Upper Hot Springs canyon, just west of Falcon Group Camp, 1.9km ESE Los Pinos Peak. 994 Comment
  RSA0069233  Glebionis coronaria Fred M. Roberts, Lee Ann Caranza 2009-4-7 7138 Orange Dana Point Headlands: Dana Point CNLM Preserve, 0.8 km WNW Dana Point Marine Institute at Dana Point Harbor. 65 Comment
  SEINET10849002  Gnaphalium David B. Dunn 1971-8-13 Dunn 18133 Orange Cultivated plants vicinity of Laguna Beach. Comment
  POM18135  Gnaphalium beneolens P. A. Munz 1923-9-7 7765 Orange Santa Ana Mts. From Holy Jim Canyon to Santiago Peak. 1067 Comment
  POM358935  Gnaphalium californicum E. A. McGregor 1964-6-4 s.n. Orange On Highway 74, between Elsinor and San Juan Capistrano. 914 Comment
  SEINET7067531  Gnaphalium californicum A. G. Vestal 1947-6-12 s.n. Orange Grade above road-end at Silverado Canyon. Coordinate datum: NAD27. UTM Zone 11, 445596mE, 3734267mN. Comment
  RSA710409  Gnaphalium luteoalbum Fred M. Roberts 2005-10-3 6297 Orange San Juan Capistrano: San Juan Creek wash, La Novia Road Bridge to 100m E of bridge, 1.4km E Mission San Juan Capistrano, 27 Comment
  RSA782059  Gnaphalium luteoalbum Mark A. Elvin 2003-2-23 2312 Orange Irvine, San Joaquin Marsh along the berm of San Diego Creek 3 Comment
  RSA696919  Gnaphalium microcephalum Minor Warne 1934-5-19 s.n. Orange Trabuco. Comment
  IRVC15124  Gnaphalium microcephalum var. microcephalum A. S. Boughey 1968-4-16 225 Orange Santiago Canyon/Lower Modjeska Cyn, Fleming Property. Santa Ana Mountains Comment
  RSA666100  Gnaphalium palustre Fred M. Roberts, Michelle Lee 2001-6-4 5484 Orange Rancho Mission Viejo: Chiquita Ridge, 0.3km WNW Median Rancho Survey Marker. PCR Vernal Pool 4. (Canada Gobernadora. 226 Comment
  RSA0054863  Gnaphalium palustre Ophelia Frost 1932-5-2 s.n. Orange Along a dirt road, 2 miles east of H. B. Comment
  IRVC746  Grindelia camporum var. bracteosa L. Stilgenbauer 1965-4-5 Orange Corona del Mar, in field near Cameo Shores Rd. Newport Beach Comment
  RSA17586  Grindelia camporum var. bracteosa C. B. Wolf 1936-7-8 8101 Orange Coast Hwy, Western end of Newport Bay. 9 Comment
  RSA5917  Grindelia camporum var. bracteosa C. B. Wolf 1932-7-2 3810 Orange Orange County, Valencia Ave, Olenda, opposite the Olinda Pilgrim Church 152 Comment
  UCSB48220  Grindelia hirsutula Roberts, Fred 1981-6-20 Orange Dana Point: 0.7km ENE Dana Hills High School 76 Comment
  POM359094  Grindelia robusta H. E. Hasse, Anstruther Davidson 1907-9-1 s.n. Orange Newport Beach, Santa Ana. Comment
  RSA542435  Gutierrezia californica Fred M. Roberts, K. Keane 1988-5-26 4006 Orange Rancho Mission Viejo: tributary to Trampas Canyon, along Christianitos Raod, 2.4km ESE Viejo Survey Mark. 135 Comment
  UCR193059  Gutierrezia californica A. C. Sanders, Fred M. Roberts 2008-6-17 35503 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, Windy Ridge Rd., saddle on ridge at head, above the Eastern Transportation Corridor 400 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
  RSA403563  Hainardia cylindrica L. C. Wheeler 1932-6-25 851 Orange 1/2 mile N Newport Bay. 15 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
  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
  RSA0066589  Harpagonella palmeri Fred M. Roberts 1988-3-15 3870 Orange Rancho Mission Viejo: Central Gabio Canyon, 7.0 km E Playa Survey Marker. 162 Comment
  UC1424954  Hazardia squarrosa var. grindelioides C. W. Tilforth 1972-8-20 624 Orange County Rd. S 19 between Cooks Corner and O'Neill Park Comment
  RSA302213  Hedera helix J. R. Shevock 1972-9-17 2281 Orange Pyles Boys Camp, Huntington Beach. 15 Comment
  RSA725521  Hedera helix Fred M. Roberts, Robert L. Allen 2007-9-28 6603 Orange Santa Ana Mtns.: Silverado Cyn., along Silverado Cyn. Rd. at eastern edge of town of Silverado. 347 Comment
  UCSB52872  Hedypnois cretica Roberts, Fred 1983-3-27 Orange Dana Point Headlands: north of Dana Strand Rd., 0.5km W Dana Point Harbor; 0.8km SSW Richard Henry Dana School 80 Comment
  RSA184081  Hedypnois cretica I. L. Wiggins 1966-3-31 20572 Orange Grazed field along south side of Brea Olinda Boulevard, near Carolina Avenue. Comment
  UC774607  Hedypnois rhagadioloides C. B. Wolf 1938-5-2 9406 Orange vacant lot on e side of 1200 block Francis St.; City of Fullerton 60 Comment
  IRVC15334  Helenium puberulum A. S. Boughey 1968-7-9 395 Orange Santa Ana mtns: upper Santiago Canyon. Peninsular Ranges Comment
  LA204752  Helianthemum scoparium W. Pequegnat; 1936-9-8 102 Orange Santa Ana Mountains, Ortega Rd Comment
  RSA696701  Helianthemum scoparium Anonymous s.n. Orange Modjeska. Comment
  RSA0027782  Helianthemum scoparium var. aldersonii R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49679 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak] 457 Comment
  RSA479  Helianthemum scoparium var. vulgare J. T. Howell 1928-4-15 920 Orange Bluffs at eastern boundary of the Rancho Santa Ana Comment
  UCR228887  Helianthus annuus Dick Newell, Peter Wetzel, Cassie Backer 2011-7-5 201 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Agua Chinon Wash 242 Comment
  UCSB41778  Helianthus annuus Sawyer, Patricia 1964-12-28 Orange Upper Newport Beach Comment
  RSA573299  Helianthus gracilentus Steve Boyd, T. S. Ross 1994-9-14 8356 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area of the Cleveland National Forest, Lucas Canyon just downstream of Lucus Canyon Trail crossing near old mining camp. Comment
  RSA751324  Helianthus gracilentus A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35293 Orange Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir. 300 Comment
  RSA874  Helianthus gracilentus J. T. Howell 1927-7-3 256 Orange Claymine Canyon near Sierra Peak. 305 Comment
  RSA0016430  Helianthus nuttallii subsp. parishii F. W. Peirson 1924-10-19 5247 Orange Wintersberg Comment
  IRVC29807  Heliotropium curassavicum Laura D. Lyons, Mark A. Elvin 2006-9-23 421 Orange San Joaquin Marsh Freshwater Marsh, UC Natural Reserve; SW edge, along San Diego Creek, N of University Drive, E Hwy 73. Southern Coastal 2 Comment
  CSUSB741  Heliotropium curassavicum var. oculatum Dave Cerf 1971-5-2 Orange Orange Park Acres. Windes Road. - 1/2 mile from the end of road (southwest). 243 Comment
  CSUSB739  Heliotropium curassavicum var. oculatum Cesareo Perez 1971-5-15 Orange Huntington State Beach Pacific Coast Highway @ Brookhurst, Huntington Beach, CA. Comment
  RSA202173  Hemizonia australis L. M. Booth 1932-6-7 1169 Orange Newport Lagoon. Comment
  RSA572920  Hemizonia australis J. Mallory 1993-8-27 6366 -D-02 Orange E and north of Cliffs on Mesa, S of Los Patos Ave. and green Street, Bolsa Chica Wetlands. Comment
  RSA627746  Hemizonia fasciculata Scott D. White 1998-1-26 6069 Orange Irvine, Univ. of Calif. Irvine Campus: Site of proposed Research Park. SW of main campus circle, ca. halfway between Berkeley Av. and new freeway (Bonita Cyn.) 37 Comment
  UCR38084  Hemizonia fasciculata G. Sampson 1985-4-23 85 362 Orange Chino Hills State Park, W end of Telegraph Canyon Comment
  SEINET2073394  Hemizonia fasciculata R. Beal 1980-5-6 Orange Dana Point, above Pacific Ocean, growing in hard-packed sand of sand hill. 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
  IRVC25204  Hemizonia parryi subsp. australis Fred M. Roberts 1986-11-4 3199 Orange Anaheim Bay, north of Hog Island, Seal Beach Naval Weapons Station 0 Comment
  UCR177696  Hemizonia parryi subsp. australis Fred M. Roberts 2003-7-8 5955 Orange Coastal Plains & Basins; Los Angeles Basin region, Orange: Orange Park Acres, along Santiago Creek, 0.5km E Cannon Road and 0.3km N Santiago Canyon Rd. 117 Comment
  RSA0001299  Hemizonia parryi subsp. australis D. D. Keck 1933-9-29 2537 Orange Seal beach. Comment
  SEINET13095118  Hemizonia parryi subsp. australis David D. Keck 1933-9-29 2537 Orange Seal Beach. Comment
  CAS-BOT-BC403799  Hesperocnide tenella Steve Boyd; Tim Ross 1992-5-19 7440 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of the wilderness in Lucas Canyon from crossing of creek by Lucas Canyon Trail, downstream to confluence with Aliso Canyon 335 Comment
  CAS-BOT-BC143754  Heteromeles arbutifolia Dr. Barton W. Evermann 1918-3-25 s.n. Orange San Clemente Comment
  RSA0072401  Heteromeles arbutifolia A. C. Sanders, Fred M. Roberts 2008-7-16 35840 Orange Lomas de Santiago, Dripping Springs off Limestone Canyon, c. 7.5 mi. ESE of Tustin. 391 Comment
  UCR100450  Heteromeles arbutifolia B. G. Pitzer 1996-4-30 2781 Orange South Coast, Upper Newport Bay, Calif. Dept. Fish & Game Ecological Reserve, off (W of) Jamboree Road 6 Comment
  CAS-BOT-BC318899  Heterotheca grandiflora Helen D. Geis 1902-1-1 s.n. Orange Unspecified Comment
  UC1543194  Heterotheca grandiflora Donald G. Nelson 1935-3-23 186 Orange sand pit near dump just s E. Orangethorpe Ave.; East Fullerton Comment
  UCR193610  Heterotheca grandiflora A. C. Sanders, Fred M. Roberts 2008-5-6 35236 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
  CAS-BOT-BC318902  Heterotheca grandiflora J. Ewan 1931-10-3 s.n. Orange 1/2 mile above La Vida Soda Springs, Carbon Canyon Comment
  CAS-BOT-BC55398  Hirschfeldia incana Ira L. Wiggins 1965-10-24 20281 Orange Fullerton. Along Skyline Driver near intersection with Raymond Street. Comment
  RSA754069  Hirschfeldia incana A. C. Sanders, Fred M. Roberts 2008-7-16 35863 Orange Lomas de Santiago, lower Hangmans Tree Canyon 379 Comment
  RSA38433  Hoffmannseggia glauca E. L. Paddock 1946-6-14 11519 Orange Rancho Santa Ana, along AT & SF Ry., above old pear orchard. Area of approximately 100 sq. ft. 121 Comment
  POM348810  Hoita macrostachya Albert J. Perkins 1912-10-15 s.n Orange Swamp near head Newport Bay. Comment
  IRVC14605  Hoita macrostachya Gordon A. Marsh, Karlin G. Marsh 1976-7-8 s.n. Orange San Clemente: Pacific Ocean beach, along railway, near W. Escalones and W. Mariposa Ave. southern coastal Comment
  JEPS65636  Hoita orbicularis Alice King April, 1908 Orange near Santa Ana; Santa Ana River Comment
  SEINET6654708  Holocarpha virgata subsp. elongata R. E. Riefner Jr. 2003-10-14 03 -421 Orange San Clemente State Beach, mima mound field in SW corner of park.; 0 27 Comment
  RSA548862  Holodiscus boursieri Fred M. Roberts, Carol A. Roberts 1988-6-10 4094 Orange Santa Ana Mountains: Modjeska Peak, 0.9km SW summit 1542 Comment
  POM2592  Holodiscus discolor Philip A. Munz 1918-5-4 2218 Orange Laguna Beach. Comment
  RSA2919  Holodiscus discolor B. D. Stark 1931-6-10 2248 Orange east fork of Claymine Canyon, north end of Santa Ana Mts 305 Comment
  CAS-BOT-BC150004  Holodiscus discolor var. discolor B. D. Stark 1931-6-20 2248 Orange East fork of Claymine Canyon, north end of Santa Ana Mountains 304 Comment
  POM205098  Hordeum brachyantherum subsp. californicum H. M. Hall 1902-05 3285 Orange Santa Ana River 183 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
  RSA0040088  Hordeum depressum Sandra Leatherman 2014-3-18 2014 -2 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
  RSA0042733  Hordeum glaucum David Barrios 1991-5-1 10 Orange 1500 ft. Northwest of Fairmont Ave and Quail cir., Yorba Linda. 365 Comment
  RSA704072  Hordeum intercedens D. E. Bramlet, Fred M. Roberts 2003-5-1 3423 Orange Donna O'Neill Reserve: Along the north ridge trail, 305m west of Cristianitos Rd. and 1 km north of the E-W access road. 128 Comment
  UCR150375  Hordeum intercedens D. E. Bramlet 1998-5-19 2620 Orange Coastal Plains & Basins/Los Angeles Basin region, San Juan Hills: 1.13 km west of La Pata Ave. and 1.22 km N of Prima Deshecha Canada. A ridgeline 213 m east of a small canyon 152 Comment
  JEPS71234  Hordeum marinum subsp. gussoneanum L. M. Booth 1932-5-12 1013 Orange Newport Bay Comment
  UCR160532  Hordeum marinum subsp. gussoneanum Robert DeRuff 1993-4-2 444 Orange South Coast, Newport Back Bay, Santa Ana Heights area, coastal end of 23rd Street 15 Comment
  CAS-BOT-BC289364  Hordeum murinum subsp. glaucum Ira L. Wiggins 1966-3-1 20480 Orange Western edge of California State College at Fullerton Comment
  UCR99555  Hordeum murinum subsp. leporinum B. G. Pitzer 1996-4-30 2799 A Orange San Joaquin Hills, Crystal Cove State Park, south of City of Irvine on State Hwy 1 (Pacific Coast Hwy) 15 Comment
  UCR247909  Horkelia cuneata subsp. cuneata Fred M. Roberts 2013-6-7 7781 Orange Peninsular Ranges, SANTA ANA MTNS.: Tributary to Upper San Juan Canyon near Chiquito Basin Trail, 1.1 km NNW Upper San Juan Campground. 518 Comment
  JEPS17473  Hydrocotyle umbellata F. W. Peirson 1924-10-19 5237 Orange Wintersberg Comment
  IRVC14741  Hypochaeris glabra A. S. Boughey 1968-4-23 205 Orange Black Star Canyon, .5mi below Hidden Ranch; area burned this winter. Santa Ana Mountains Comment
  RSA749428  Hypochaeris glabra Fred M. Roberts 2008-4-14 6892 Orange Santa Ana Mtns.: Upper Weir Cyn., east fork, 3.4 km E Robbers Peak, Irvine Ranch Conservancy. 433 Comment
  SEINET272171  Hypochaeris glabra G. K. Helmkamp, E. A. Helmkamp 1997-4-24 1659 Orange Cleveland National Forest ; Cleveland National Forest 1.6 mi. SE of Ortega Hwy (CA-74) on Rd. 7-S14. UTM 10km cell: MH-5E 1N. San Juan Hot Spring 549 Comment
  UC1543205  Hypochaeris glabra Donald G. Nelson 1935-4-14 277 Orange Newport Beach Comment
  RSA606376  Hypochaeris glabra Jon E. Keeley 1994-4-5 25275 Orange First year burn, east end of Caspers Park S-7 (Keeley 1994) 215 m. 215 Comment
  POM294117  Isocoma menziesii var. decumbens Lyman Benson 1946-5-13 12097 Orange Corona del Mar, Pacfic Ocean drainage area 50 Comment
  IRVC24537  Isocoma menziesii var. vernonioides J. Johnson 1976-8-10 Orange Newport [Back] Bay. Newport Beach Comment
  OBI47601  Isocoma menziesii var. vernonioides B. Pitzer & L. F. LaPre, L. F. LaPre 1986-10-20 s.n. Orange Summit of Hicks cyn on a private road (continuation of Jeffrey rd) ca. 2.4 mi above the gun club. (Near 117d 43'W, 33d 44'N 274 Comment
  POM201745  Isocoma menziesii var. vernonioides L. M. Booth 1932-6-29 1225 Orange Newport Bay Comment
  POM294112  Isocoma menziesii var. vernonioides Lyman Benson 1946-7-8 12105 Orange Corona del Mar. 15 Comment
  RSA5815  Isocoma menziesii var. vernonioides C. B. Wolf 1932-6-28 3807 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
  UC672256  Isocoma menziesii var. vernonioides H. L. Mason 1926-4-25 2906 Orange 5 mi s Laguna Comment
  RSA722089  Isocoma menziesii var. vernonioides R. E. Riefner 2004-9-18 04 -425 Orange City of Yorba Linda; Santa Ana River, Horseshoe Bend, near La Palma Rd. and Via Del Rio Rd. 105 Comment
  POM186294  Isolepis cernua Joseph A. Ewan 1932-7-29 7727 Orange Newport Lagoon, on road around hills to Costa Mesa. Comment
  RSA696234  Isomeris arborea Minor Warne 1934-5-10 s.n. Orange Fairview bluff near Talbert Comment
  CAS-BOT-BC324739  Iva axillaris Carl B. Wolf 1932-6-28 3804 Orange Bryant Ranch, edge of field on Bixy Ave. 228 Comment
  RSA703682  Jepsonia parryi Fred M. Roberts, D. E. Bramlet 2004-11-5 6127 Orange Rancho Mission Viejo: Donna O Neill Land Conservancy, west slopes of Cristianitos Cyn., 0.79 km N Sycamore Gate and 0.18 km W Cristianitos Road. 146 Comment
  CAS-BOT-BC426246  Jepsonia parryi John Thomas Howell 1929-2-7 4094 Orange Claymine Canon, n. Samta Ana Mts. 243 Comment
  UCR234144  Juglans californica Dick Newell, Judy Booth 2012-3-22 231 Orange South Coastal Plain, Willow Canyon, Laurel Loop Trail, off Laguna Canyon Rd. 75 Comment
  UCR247895  Juglans californica Fred M. Roberts 2013-8-9 7802 Orange Peninsular Ranges, SANTA ANA MTNS.: Lower Silverado Canyon along Silverado Creek on north side of Silverado Canyon Road, 0.8 km ENE Silverado School and 1.5 km up stream Black Star Road crossing. 325 Comment
  POM9756  Juglans californica P. A. Munz 1921-2-26 4682 Orange Brea Canyon. 305 Comment
  RSA0011060  Juglans californica Mark Breidenbaugh, Caralisa Breidenbaugh 1992-5-24 59 Orange 1000 ft. north of Chino Hills State Park Boundary 229 Comment
  SD7922  Juglans californica var. californica George R. Kleeberger 1878-12-1 Orange Santa Ana Valley Comment
  SD253479  Juglans hindsii R. E. Riefner Jr. 2013-11-6 13 234 Orange City of Laguna Beach, Laguna Canyon, N of Phillips St on E side of Laguna Canyon Rd. 71 Comment
  RSA790108  Juglans hindsii R. E. Riefner Jr. 2011-8-25 11 -112 Orange Trabuco Canyon, Trabuco Canyon Rd. ca. 1 mi NW of O Neill Regional Park. 319 Comment
  RSA0022439  Juglans regia Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49798 Orange Santa Ana Mountains: Trabuco Canyon, below Yaeger Mesa Comment
  UCR158462  Juncus Adrian Wolf 1998-5-27 318 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
  UC842095  Juncus acutus subsp. leopoldii Louis C. Wheeler 1932-6-25 869 Orange inlet arm of Newport Bay Newport Bay 0 Comment
  UCR158025  Juncus acutus subsp. leopoldii Adrian Wolf 1998-7-21 360 Orange South Coast, Emerald Canyon, Laguna Coast ranges, 1.5 km up canyon from Pacific Coast Hwy, 2.5 km east of El Moro Trailer park 91 Comment
  RSA699734  Juncus acutus var. sphaerocarpus Keith E. Hoffmaster 1933-10-8 s.n. Orange Near Newport Bay. Comment
  POM7126  Juncus balticus subsp. ater Phillip A. Munz, L. T. Street, G. Williams 1919-5-3 2654 Orange Santa Ana River Canyon. Comment
  POM155895  Juncus bufonius C. B. Bradshaw s.n. Orange Laguna region. Comment
  UCR217669  Juncus effusus subsp. austrocalifornicus Fred M. Roberts, R. E. Riefner Jr. 2008-5-30 7022 Orange South Coast, Lomas de Santiago, Loma Ridge, Hanging Man's Tree Canyon, along Hanging Man's Tree Canyon Road, c. 0.4 km west of Santiago Canyon Road and 1.23 km north of Bolero Lookout 372 Comment
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Sep 21 2020
  SD245183  Juncus macrophyllus R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49575 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74). Comment
  POM202728  Juncus mexicanus L. M. Booth 1932-6-4 1153 Orange Newport Lagoon. Comment
  RSA594873  Juncus mexicanus Fred M. Roberts, W. R. Ferren 1991-12-1 4828 Orange Aliso-Wood Canyons Regional Park: Lower Wood Canyon, just above confluence with Alins Canyon, ca. 3.5 kilometers S Multon Peak. 32 Comment
  RSA562612  Juncus patens Steve Boyd, Fred M. Roberts 1992-10-14 7714 Orange Northern Santa Ana Mountains, vicinity of Oak Flats (aka Oat Flats) northeast of the junction of Main Divide Road and Skyline Road, just west of Riverside County line 800 Comment
  UCR193024  Juncus patens A. C. Sanders, Mitch Provance 2008-5-20 35399 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, mouth of Hangman Tree Canyon just above confluence with Santiago Creek Canyon, c. 1/2 mile below Modjeska Canyon confluence 366 Comment
  UCR193074  Juncus rugulosus A. C. Sanders, Mitch Provance 2008-5-20 35424 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago area, Santiago Creek Canyon, c. 3/4 mile below Modjeska Canyon confluence 355 Comment
  SEINET3282755 Image available Juncus textilis A. C. Sanders, Fred M. Roberts 2008-7-16 35855 Orange Peninsular Range; Santa Ana Mtns.; Lomas de Santiago, upper Hangmans Tree Canyon. 395 Comment
  RSA683839  Juniperus californica Scott D. White, Michael Honer 2003-5-29 9422 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
  SEINET10932780  Juniperus chinensis Charlene A. Bennett 1976-7-21 Bennett 438 Orange Cultivated plants collected in and around the condominium-Pacific Island Estates in Laguna Hills; some native shrubs, etc. 152 Comment
  IRVC16202  Juniperus monosperma Gordon A. Marsh, K. G. Marsh 1977-11-21 s.n. Orange Ortega Hwy, north side, near Hwy marker 31 and OC BM 3W-24-72, across San Juan Creek from Rancho Mission Viejo Cow Camp; naturalized, numerous small trees. Rancho Mission Viejo Comment
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Mar 28 2014
  UCR246394  Juniperus rigida var. conferta R. E. Riefner Jr. 2012-10-21 12- 521 Orange South Coast, city of Newport Beach, Corona del Mar, c. 0.5 mi south from the intersection of Poppy Ave./Ocean Blvd. at Little Corona Beach 12 Comment
  RSA765301  Keckiella antirrhinoides Doris Bowers 1971-4-9 1697 Orange SW of Corona, Santa Ana Mts. 457 Comment
  CAS-BOT-BC235721  Keckiella cordifolia Peter Kamb Ray 1948-6-19 1100 Orange Holy Jim Canyon, Santa Ana Mountains 609 Comment
  LA209275  Keckiella cordifolia Norman C. Cooper; 1944-6-4 1340 Orange San Juan Canyon 304 Comment
  NY790204  Keckiella cordifolia S. McCoy 1932-6-3 243 Orange Near Brea Comment
  RSA293307  Keckiella cordifolia D. C. Michener 1980-6-21 3683 Orange Starr Audubon Sanctuary. Riparian woodland margin in Crow Creek ca. 1.5 mi. north of confluence with Bell Canyon. 250 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
  RSA7393  Keckiella ternata subsp. ternata Carl B. Wolf 1933-8-24 5405 Orange Summit of Santiago Peak, Santa Ana Mountains. 1732 Comment
  UCR227628  Keckiella ternata subsp. ternata Robt. L. Allen 2003-6-22 12296 Orange Peninsular Range; Santa Ana Mountains, northeastern flank of Santiago Peak, along North Main Divide Road 1505 Comment
  JEPS1808  Kickxia elatine Frank W. Peirson 1927-9-25 7676 Orange flats below Wintersberg Comment
  RSA184078  Kochia scoparia I. L. Wiggins 1966-4-3 20576 Orange Railroad embankment near entrance to Rancho Santa Ana. Comment
  POM7128  Koeleria macrantha P. A. Munz, L. T. Street, G. Williams 1919-5-3 2633 Orange Santa Ana River Canyon. 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
  SEINET998786  Koelreuteria bipinnata R. E. Riefner Jr. 2006-1 06 -673 Orange South Coast: Irvine, along San Diego Creek at Campus Ave. (Tustin 7.5' Q.) 4 Comment
  RSA731652  Kyllinga brevifolia Fred M. Roberts 2007-10-29 6627 Orange Laguna Beach: Temple Hill, Nyes Place, c.a. 0.2 km S Moulton Meadows Park. 232 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
  RSA759155  Lactuca serriola A. C. Sanders, Fred M. Roberts 2008-6-17 35457 Orange Lomas de Santiago, Hicks Canyon Haul Road 0.5 mi. east of the Foothill Transportation Corridor 244 Comment
  UCSB57086  Lagophylla ramosissima Roberts, Jr., Fred 1985-7-26 Orange Santa Ana Mtns.; Main Divide Truck Trail, 0.5 km. N Blue Jay Campground; 2.2 km. ESE Los Pinos Pk., UTM 3724000m N, 45827m E 1005 Comment
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Feb 22 2019
  CAS-BOT-BC516763  Lagunaria patersonia R. E. Riefner, Jr. 2011-6-29 11 -76 Orange City of Laguna Beach, general area of Shaw's Cove, vicinity of Cliff Dr. and Fairview St. 1 Comment
  UCR246471  Lagunaria patersonia R. E. Riefner Jr. 2004-12-23 04- 557 Orange South Coast, city of San Clemente, vicinity of San Clemente Pier at Ave. Del Mar 3 Comment
  UCD63304  Lamarckia aurea W. W. Robbins 1931-5-11 2202 Orange Santa Ana. Comment
  RSA577751  Lamarckia aurea F. M. Reed 1925-4-15 6325 Orange Santa Ana Canyon, near canal bridge Comment
  RSA697035  Lamarckia aurea Keith E. Hoffmaster 1928-3-13 s.n. Orange Santa Ana. Comment
  CDA23089  Lampranthus aurantiacus Mark A. Elvin, D. G. Kelch 2006-12-9 5303 Orange Southern Coastal; Newport Backbay; Big Canyon, lower end. Comment
  RSA588850  Lampranthus multiradiatus Fred M. Roberts 1989-10-4 4433 Orange South Laguna: south of, and near west end of Monterey Street, 0.6km W Aliso Peak. 33 Comment
  RSA708014  Lantana camara Scott D. White, Jennifer H. Jones 2005-3-31 10854 Orange South Coast: City of Laguna Beach. 549 Nyes Place. Proposed home site on ca. 0.5 acre. 91 Comment
  CAS-BOT-BC338902  Lasthenia californica C. B. Wolf 1931-3-6 1847 Orange 1 mile above Trabuco Oaks, Trabuco Canyon, West slope of the Santa Ana Mts. 518 Comment
  RSA695491  Lasthenia coronaria Minor Warne 1934-04 s.n. Orange Laguna Canyon Forks Comment
  CAS-BOT-BC329171  Lasthenia glabrata subsp. coulteri E. R. Johnson 1931-4-7 1937 Orange East end camp, Bryant Ranch, Los Alamitos 9 Comment
  CAS-BOT-BC329175  Lasthenia glabrata subsp. coulteri Carl B. Wolf 1935-3-24 6295 Orange 1 mi N of Buena Park (valley to W of W. Coyote Hills) 53 Comment
  UC718548  Lasthenia glabrata subsp. coulteri Carl B. Wolf 1935-3-24 6295 Orange Comment
  UC942889  Lasthenia glabrata subsp. coulteri Lewis S. Rose 1949-4-18 49047 Orange Seal Beach Comment
  UCR240171  Lasthenia glabrata subsp. glabrata R. E. Riefner Jr. 2012-5-5 12- 85 Orange South Coast, city of San Clement, Antonio Parkway, c. 0.25 mi north of Hwy 74 88 Comment
  SEINET6073121  Lathyrus laetiflorus Unknown 1988-1-12 5117 Orange Cleveland National Forest, San Juan Creek at Lower San Juan Campground. Comment
  IRVC17039  Lathyrus vestitus subsp. laetiflorus G. Howard 1965-3-25 Orange [Newport] Back Bay. Newport Beach Comment
  UC729698  Lathyrus vestitus var. alefeldii Carl B. Wolf 1932-3-8 Orange w base Santa Ana Mts.; , Santiago Dam 304 Comment
  UCSB47580  Lathyrus vestitus var. vestitus Roberts, Fred 1980-4-3 Orange San Juan Canyon, Hwy. 74, 0.4 km. NNE Lower San Juan Picnic Ground, Santa Ana Mtns. 420 Comment
  UCSB28050  Lathyrus vestitus var. vestitus Blakley, E. 1957-4-26 Orange State Rte. #140; 5 miles east of Mission San Juan Capistrano 121 Comment
  JEPS68631  Lavatera assurgentiflora subsp. assurgentiflora Lawrence M. Booth 1932-5-26 1121 Orange Newport Bay Comment
  POM177820  Lavatera assurgentiflora subsp. assurgentiflora Marcus E. Jones 1930-2-2 2654 -I Orange Laguna, Marine Station. Comment
  RSA0013587  Layia platyglossa D. E. Bramlet, Jim Harrison 2008-4-3 4151 Orange South Bee Cyn. Bowerman landfill site, 1.2km south of Bee Cyn access road, & 122n west of the active landfill. Comment
  RSA699674  Layia platyglossa Keith E. Hoffmaster 1935-4-19 s.n. Orange Santiago can. near Silverado ca., Santa Ana Mountains. Comment
  UC1543193  Layia platyglossa Donald G. Nelson 1935-3-30 196 Orange near mouth Brea Canyon (n of Brea, on Tonner Lease, in northern part of county); on Tonner Lease Comment
  RSA896  Layia platyglossa subsp. campestris J. T. Howell 1928-2-25 844 Orange Between Nolina and Bee Canyon, Rancho Santa Ana. 152 Comment
  IRVC18681  Lepechinia cardiophylla Karlin G. Marsh 1981-5-1 s.n. Orange Santa Ana Mtns: Bald Peak Peninsular Ranges 1159 Comment
  UC1124486  Lepechinia cardiophylla H. E. Norton 1931-3-30 41 Orange Ridge between Ladd and East Fork Canyons 1036 Comment
  UCR231204  Lepechinia cardiophylla A. C. Sanders, T. B. Salvato, Kent Beaman 2011-11-3 39942 Orange Peninsular Range; Santa Ana Mtns., near Pleasants Peak along the Main Divide Truck Trail 1143 Comment
  CAS-BOT-BC89063  Lepidium didymum Scott D. White 1998-3-24 6227 Orange University of California Irvine Campus. Site of proposed Research Park, southwest of main campus circle. 48 Comment
  POM21181  Lepidium lasiocarpum Helen D. Geis 1902-3-20 s.n. Orange Bed Santiago Creek. Comment
  UCR266422  Lepidium latifolium D. E. Bramlet 2009-11-27 4427 Orange South Coast, San Diego Creek between Irvine and Newport Back Bay 8 Comment
  UCSB48030  Lepidium latifolium Roberts, Fred 1980-5-4 Orange Mission Viejo: along Santa Fe Railroad and Camino Capistrano; 1.7 km. N Crown Valley Parkway; 1.1 km. S Bench Mark 316 49 Comment
  CAS-BOT-BC12520  Lepidium nitidum Carl B. Wolf 1932-2-15 2657 Orange Rancho Santa Ana Botanic Garden, above the Rubus beds. 182 Comment
  RSA731995  Lepidium nitidum A. C. Sanders, L. Farley, F. M. Roberts, D. E. Bramlet 2008-4-1 34648 Orange Peninsular Range: Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 250 Comment
  UCR191444  Lepidium nitidum A. C. Sanders, Fred M. Roberts 2008-4-8 34726 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, head of Hicks Canyon, S of Santiago Reservoir 351 Comment
  CDA25727  Lepidium oblongum A. C. Sanders, T. B. Salvato 2008-5-13 35331 Orange Peninsular Range; Santa Ana Mountains; Lomas de Santiago, Santiago Canyon at mouth of Hangman Tree Canyon and lower Hangman Tree Canyon, c. 1/2 mile below Modjeska Canyon confluence. Comment
  RSA629716  Lepidium pinnatifidum L. C. Wheeler 1947-5-4 6476 Orange 4 1/2 miles south of Santa Ana: South Main Street extension, 0.8 miles south of Newport Avenue. Comment
  UCR4054  Lepidium virginicum Carole Sims 1965-3-25 s.n. Orange Santa Ana River Canyon, hillside at 24000 Santa Ana Canyon Road (= State Hwy 91), 150 yards north of hwy; also called Gypsum Canyon. West side of gravel company's trucking road. 221 Comment
  HSC6841  Lepidium virginicum D. H. Norris 1956-6-16 10 Orange Along Guess Rd., near Eno River Comment
  UCSB52926  Lepidium virginicum Roberts, Jr., Fred 1983-3-16 Orange Laguna Beach, Sycamore Hills, central ridge; 1.1 km NNE jct. El Toro and Laguna Cyn. Rds.; 5.4 km. ESE Signal Peak 170 Comment
  CAS-BOT-BC60081  Lepidium virginicum var. menziesii John Thomas Howell 1927-6-20 2559 Orange On north side of Santa Ana Canyon. 228 Comment
  CAS-BOT-BC60085  Lepidium virginicum var. menziesii Helen D. Geis 1902-1-1 531 Orange Santiago Creek. Comment
  RSA329  Lepidium virginicum var. pubescens J. T. Howell 1927-6-20 172 Orange Botany Garden, Rancho Santa Ana 152 Comment
  CAS-BOT-BC329357  Lepidospartum squamatum John Thomas Howell 1927-7-28 2864 Orange North side of Santa Ana Canon 152 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
  RSA754068  Lepidospartum squamatum A. C. Sanders, Fred M. Roberts 2008-7-16 35864 Orange Lomas de Santiago, Santiago Creek wash at and above the confluence of Hangmans Tree Canyon 358 Comment
  RSA712939  Leptochloa fusca subsp. uninervia Fred M. Roberts 2005-10-3 6304 Orange San Juan Capistrano: San Juan Creek wash, La Novia Road Bridge to 100m E of bridge, 1.4km E Mission San Juan Capistrano, 27 Comment
  RSA731934  Leptochloa fusca subsp. uninervia Fred M. Roberts, Sandy Leatherman 2007-11-27 6676 Orange Yorba Linda: drainage channel on east side of Amberdale Dr. ca. 0.3 km S Fairmont Blvd. 118 Comment
  UCSB48232  Leptochloa fusca subsp. uninervia Roberts, Fred 1981-5-2 Orange Mission Viejo; Camino Capistrano, 1.5 km N Crown Valley Parkway 49 Comment
  CDA32435  Leptochloa uninervia D. G. Kelch 2006-12-9 6 .552 Orange Irvine. University Dr along tidal creek just E of I-73. Comment
  UCR133165  Leptodactylon californicum Adrian Wolf 2000-3-24 458 Orange Santa Ana Mtns., North Ranch Policy Plan Area, Lake View Road 518 Comment
  UCR17334  Leptodactylon californicum Andrew Alexis 1978-4-29 s.n. Orange Santa Ana Mtns, mouth of Modjeska Canyon. Comment
  RSA0027773  Leptodactylon californicum R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49691 Orange Northern Santa Ana Mountains: Sierra Peak 900 Comment
  SBBG128690  Leptosiphon floribundus subsp. floribundus R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49714 Orange Bedford Truck Trail, ca. 0.8 km below jct with Main Divide Truck Trail; Santa Ana Mtns Comment
  CAS-BOT-BC94815  Lessingia filaginifolia R. C. Wenk; P. Hopkinson; M. Hammond; P. Brownsey 2008-3-24 717 Orange Chino Hills S.P., South Ridge Road, W of San Juan Hill, going west from Equestrian Staging Area 441 Comment
  UCR186586  Lessingia filaginifolia Robert DeRuff 1995-1 s.n. Orange Southern Coast, Newport Beach, Newport Back Bay, Eastbluff bench 12 Comment
  UCR140884  Leucojum aestivum Robert DeRuff 1988-2-20 352 Orange Southern Coast, Costa Mesa, Irvine Blvd. and 23rd Street 9 Comment
  RSA234478  Leymus condensatus James Henrickson 1970-7-24 4973 Orange 1.5 miles NW of Huntington Beach along NW facing base of Huntington Beach Mesa bordering Bolsa Chica Salt Marsh. 3 Comment
  RSA734905  Leymus condensatus A. C. Sanders 2008-5-28 35433 Orange Lomas de Santiago, Bee Flat at mouth of Limestone Canyon 264 Comment
  UCSB50646  Leymus condensatus Roberts, Fred; Allen, R. 1982-7-4 Orange Carbon Canyon, Carbon Canyon Rd., 0.4km by road SW County line; 2.3km NW Gilman Peak; Chino Hills 260 Comment
  JEPS71200  Leymus triticoides L. M. Booth 1932-6-7 1156 Orange Newport Bay Comment
  POM202496  Leymus triticoides L. M. Booth 1932-6-7 1156 Orange Newport Lagoon. 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
  RSA124  Lilium humboldtii subsp. ocellatum J. T. Howell 1927-7-3 262 Orange Claymine Canyon near Sierra Peak. 305 Comment
  RSA649674  Lilium humboldtii subsp. ocellatum R. E. Riefner 2000-6-30 20 -594 Orange NCCP North Ranch Policy Plan Area. N Fremont Canyon at Donaldson Ranch adjacent to powerline crossing on W fork of Fremont Canyon drainage. 427 Comment
  UC1873112  Limonium R. E. Riefner Jr. 2006-8-13 06 -391 Orange salt marsh with Salicornia; Coastal Salt Marsh 8 Comment
  IRVC29763  Limonium californicum Barry S. Nerhus, Mark A. Elvin 2006-11-4 8 Orange Huntington Beach, Bolsa Chica Wetlands, SW portion of Reserve beside Pacific Coast Highway. Southern Coastal 0 Comment
  RSA401665A  Limonium californicum F. R. Fosberg 1930-7-10 53982 Orange Anaheim Landing. [Now Seal Beach, Orange County. Los Angeles Co. on label] 1 Comment
  RSA689534  Limonium duriusculum R. E. Riefner 2002-5-4 20 -99 Orange Upper Newport Bay, Jamboree Rd at Bayview Dr. 15 Comment
  SFV20426  Limonium perezii A. Le 2002-4-5 16 Orange Newport Beach. Near residential area near beach. Comment
  RSA723499  Limonium ramosissimum R. E. Riefner 2005-10-5 5 -708 Orange City of Irvine, Bonita Creek, along La Salud St. near Milano Dr. 9 Comment
  CAS-BOT-BC226772  Linanthus californicus Marcus E. Jones 1926-3-10 s.n. Orange Near Santa Ana Canon [Canyon] Comment
  RSA33575  Linanthus californicus N. C. Cooper 1944-6-4 1358 Orange San Juan Canyon. 610 Comment
  RSA468463  Linanthus californicus Albert J. Perkins 1920-5-16 s.n. Orange Trabuco Canyon, Comment
  RSA1925  Linanthus californicus B. D. Stark 1931-3-12 1087 Orange Santa Ana Mountains, 3 miles north of Modjeska's home 305 Comment
  JEPS89271  Linanthus dianthiflorus Rimo Bacigalupi and L. Heckard, P. C. Hutchison 1962-3-16 8233 Orange 2 mi n Doheny Beach State Park (fields above ocean) Comment
  UCR5212  Linanthus dianthiflorus Barbara T. Gittins, O. F. Clarke 1966-3-19 894 Orange Pacific slope, Irvine Ranch, east of University of California Irvine campus, Newport Beach 91 Comment
  RSA700539  Linaria canadensis var. texana Frances Battey s.n. Orange Orange Co. Park. Comment
  UCR128167  Lippia nodiflora Scott D. White, Michael Honer 2003-7-10 9626 Orange Santa Ana Mountain foothills, Hills above Trampas Canyon, just south of Ortega Hwy 183 Comment
  IRVC299  Lobelia dunnii var. serrata D. Christy 1965-5-5 Orange Corona del Mar, Begonia St. Newport Beach Comment
  IRVC1113  Lobularia maritima J. Pierce 1965-4-27 Orange Corona del Mar. Newport Beach Comment
  IRVC1116  Lobularia maritima C. Duncan 1965-4-4 Orange Newport Beach Comment
  RSA782058  Lobularia maritima Mark A. Elvin 2003-2-23 2313 Orange Irvine, San Joaquin Marsh along the berm of San Diego Creek 3 Comment
  CAS-BOT-BC283492  Lolium multiflorum Carl B. Wolf 1932-6-13 3728 Orange Fullerton, Malvern, and Nicholas Avenues 53 Comment
  RSA6058  Lolium perenne C. B. Wolf 1932-6-13 3714 Orange Fullerton, Rose Drive 53 Comment
  RSA651759  Lolium perenne Diane T. Liggett 1981-5-16 6 Orange Riverside Freeway (91) east to Imperial Hwy, south to Nohl Ranch Road, east to Serrano Ave., south on Hidden Canyon Road, 1 km into Weir Canyon. Comment
  RSA0011622  Lolium perenne subsp. multiflorum Rankin s.n. Orange Irvine Park. Comment
  RSA6130  Lolium perenne subsp. multiflorum C. B. Wolf 1932-6-13 3728 Orange Storm drain at Malvern and Nicholas Aves; Fullerton. 53 Comment
  CAS-BOT-BC271069  Lolium temulentum P. A. Munz 1918-5-4 2202 Orange Laguna Comment
  POM202585  Lolium temulentum L. M. Booth 1932-5-19 1078 Orange Newport Bay. Comment
  RSA1492  Lomatium dasycarpum subsp. dasycarpum E. R. Johnson 1929-4-11 1255 Orange Sierra Peak Trail. Comment
  CLARK-A1528-2431  Lomatium lucidum John C. Roos 1960-5-30 Orange Santa Ana Mountains 1066 Comment
  UCR26985  Lonicera subspicata var. johnstonii E. W. Lathrop 1966-1 6187 Orange 4 mi NE of Lake Irvine, Black Star Canyon, Cleveland National Forest. Comment
  UCR192735  Lotus salsuginosus A. C. Sanders, Fred M. Roberts 2008-5-6 35232 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
  RSA498808  Lotus salsuginosus E. S. Spalding 1923-12-1 14175 Orange Seashore opposite San Juan de Capistrano. Comment
  UCR106309  Lotus scoparius B. G. Pitzer, M. Georgiady 1997-4-5 3099 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
  UCR131884  Lotus scoparius J. Mallory, V. McCoy 1995-6-30 6454- 59 Orange Santa Ana Mountains: S-facing slope on Windy Ridge, c. 2.5 mi. south of 91 fwy. Comment
  IRVC15131  Lotus scoparius subsp. scoparius A. S. Boughey 1968-7-9 404 Orange Santa Ana mtns: upper Santiago Canyon. Peninsular Ranges Comment
  IRVC2240  Lotus scoparius subsp. scoparius J. Morgan 1965-4-4 Orange Laguna Canyon. Laguna Beach Comment
  RSA725937  Lotus scoparius var. scoparius R. E. Riefner 2006-7-2 06 -277 Orange Costa Mesa, St. Route 73 at 55 Freeway interchange 20 Comment
  RSA748819  Lotus scoparius var. scoparius G. Gust, L. Nye 2005-3-12 564 Orange Cleveland National Forest, on Hwy 74 ca. 0.5 m W of county boundary with Riverside at a pullout. 401 Comment
  UCR203987  Lotus scoparius var. scoparius Fred M. Roberts 2008-3-12 6729 Orange South Coast, Dana Point Headlands Center for Natural Lands Mgmt. Preserve, west side, c. 0.8 km west of Marine Institute, Dana Point Harbor 50 Comment
  HSC98231  Lotus strigosus S. M. Clapp 1966-4-3 5 Orange Union Oil Prop., just S of Imperial Hwy. and E of Associated Rd. 61 Comment
  POM250348  Lotus strigosus I. W. Clokey 1932-3-1 5328 Orange Laguna Beach. Comment
  RSA649262  Lotus strigosus T. Pringle 1966-3-22 68 Orange In Silverado Canyon Comment
  RSA732077  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
  UC1544837  Lotus strigosus A. G. Vestal 1962-4-8 Orange 1.3 mi n Elsinore Comment
  UCR191322  Lotus strigosus A. C. Sanders, Fred M. Roberts 2008-4-8 34746 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, head of Hicks Canyon, S of Santiago Reservoir 351 Comment
  UCR281557  Lotus strigosus Mitch Provance, Jeremiah George 2017-3-20 317- 114 Orange West Coyote Hills, Fullerton, vicinity of Utility Access Roads E of Gilbert Street and N of Castlewood Dr., on land previously occupied by oil fields. 137 Comment
  PASA1114  Lotus subpinnatus Frank W. Peirson 1922-5-18 Orange Santa Ana 137 Comment
  RSA562727  Lotus unifoliolatus Steve Boyd, T. S. Ross 1992-5-20 7463 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of the wilderness in Lucas Canyon along canyon floor from crossing Lucas Canyon Trail, upstream 1/4 mile to spur trail leading to old mining habitations in side canyon. 305 Comment
  POM201832  Lotus wrangelianus L. M. Booth 1932-5-19 1073 Orange Newport Bay. Comment
  RSA232237  Ludwigia peploides subsp. peploides James Henrickson 1970-8-29 5301 Orange 3 miles NE of Huntington Beach in pasture just N of Bolsa Chica Salt Marsh. Sea level. 0 Comment
  RSA734685  Lupinus bicolor A. C. Sanders, T. B. Salvato 2008-5-13 35340 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
  UCR193295  Lupinus bicolor A. C. Sanders, T. B. Salvato 2008-5-13 35340 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Canyon at mouth of Hangman Tree Canyon and lower Hangman Tree Cyn, c. 1/2 mile below Modjeska Canyon confluence 366 Comment
  IRVC22219  Lupinus bicolor subsp. umbellatus Fred M. Roberts, Gordon Marsh 1985-4-3 1611 Orange Irvine: Irvine Ranch, 1.2km W UCI campus center, Southern Coastal 24 Comment
  IRVC24501  Lupinus bicolor subsp. umbellatus Fred M. Roberts, Gordon Marsh 1986-2-28 2623 Orange Mission Viejo: N of Oso Parkway; 4.2km NNE Saddleback Community College. Southern Coastal 200 Comment
  RSA543961  Lupinus concinnus subsp. concinnus Steve D. Boyd 1991-5-9 6192 Orange Crest of range at Oak Flat, SE of Sierra Peak, just West of Riverside County Line. 793 Comment
  RSA594823  Lupinus concinnus subsp. concinnus Fred M. Roberts Jr., Sandra Leatherman, Brian Leatherman 1994-4-24 4917 Orange Santa Ana Mtns.: Lower Hot Springs Canyon, ca. 1 km NNW Juan Rancho Survey mark. 268 Comment
  OBI5825  Lupinus excubitus Carl B. Wolf 1931-5-20 2056 Orange Along Santa Fe RR 1 mi W of Esperanza, Santa Ana Cyn 107 Comment
  UC527213  Lupinus excubitus C. B. Wolf 1931-5-20 2056 Orange along Santa Fe R.R. 1 mi w Esperanza (Santa Ana Canyon); Santa Ana Canyon 106 Comment
  CAS-BOT-BC216673  Lupinus excubitus subsp. hallii B. D. Stark 1931-4-18 1939 Orange Gypsum Canyon, N base of Santa Ana Mountains, Santa Ana Canyon 152 Comment
  RSA564322  Lupinus excubitus var. excubitus B. Pitzer, S. Hemstreet 1992-12-23 1964 Orange Cleveland National Forest. Along road 3S04 to Blue Jay Group Campground, off State Hwy 74 (Ortega Hwy). Approx. 2 airline miles W of El Cariso Campground 762 Comment
  IRVC2316  Lupinus excubitus var. hallii A. S. Boughey, Pat Pembrook 1965-6-15 1038 Orange Silverado Canyon near Silverado. Santa Ana Mountains Comment
  UC527220  Lupinus excubitus var. hallii B. D. Stark 1931-4-18 1939 Orange Santa Ana Canyon mouth of Gypsum Canyon; n base of Santa Ana Mts., Santa Ana Canyon 152 Comment
  UCR97820  Lupinus hirsutissimus Scott D. White 1997-3-28 4837 Orange Santa Ana Mountains, Above Modjeska Canyon, proposed water tank site. 488 Comment
  CAS-BOT-BC217749  Lupinus longifolius E. R. Johnson 1932-4-15 2957 Orange Rancho Santa Ana, 1 mi. NW of Roundtop (Section 16) 457 Comment
  RSA797239  Lupinus longifolius Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49801 Orange Santa Ana Mountains: Trabuco Canyon Comment
  RSA682918  Lupinus microcarpus Scott D. White, Amanda Duchardt 2003-5-1 9152 Orange Santa Ana Mtn Foothills; slopes above the west side of Canada Gobernadora and adjacent small canyon to the west. 76 Comment
  IRVC15356  Lupinus sparsiflorus Charles W. Sexton 1974-4-23 s.n. Orange Upper Trabuco Canyon, third fork below Yeager's Mesa. Santa Ana Mountains 762 Comment
  RSA86974  Lupinus sparsiflorus subsp. sparsiflorus F. W. Peirson 1923-5-5 3508 Orange Trabuco Canyon, Santa Ana Mts. 549 Comment
  IRVC2348  Lupinus succulentus D. Van Gorden 1965-5-9 HS 0415 Orange Silverado Canyon. Santa Ana Mountains; Comment
  RSA653185  Lupinus succulentus David Barrios 1991-5-8 33 Orange 1500 ft. Northwest of Fairmont Ave and Quail cir. 365 Comment
  RSA89141  Lupinus succulentus E. K. Balls 1952-3-8 18876 Orange Along Esperanza Road, W of entrance to Rancho Santa Ana. Comment
  SD143894  Lupinus truncatus Scott D. White 1997-3-28 4851 Orange Santas Ana Mountains; above Modjeska Canyon. 424 Comment
  IRVC15185  Lupinus truncatus Gordon A. Marsh, K. Conrey 1975-4-14 s.n. Orange Lomas de Santiago: Lomas Ridge, 1/4mi NNW Rattlesnake Canyon Reservoir Dam Southern Coastal Comment
  IRVC15186  Lupinus truncatus Gordon A. Marsh, K. Conrey 1975-4-14 s.n. Orange Lomas de Santiago: Lomas Ridge, 1/4mi NNW Rattlesnake Canyon Reservoir Dam Southern Coastal Comment
  UCR251743  Lycium brevipes var. hassei R. E. Riefner Jr. 2014-4-12 14- 77 Orange South Coast, City of San Clemente, San Clemente State Beach, SSW c. 100 m from the intersection of Ave. Califia and South Ola Vista Rd. 40 Comment
  LA209655  Lycium californicum B. R. Lower; 1954-4-25 sn Orange Laguna Beach Comment
  POM4188  Lycium californicum Philip A. Munz 1918-5-5 2196 Orange Laguna Beach. Comment
  RSA201743  Lycium californicum Robert F. Thorne 1969-3-4 s.n. Orange 2.5 miles S of Corona del Mar 15 Comment
  RSA0071939  Lycium californicum CNPS Accuracy Assessment Team 2014-7-22 6468 .1 Orange Crystal Cove State Park. Comment
  RSA0014847  Lythrum californicum I. M. Johnston 1924-8-29 s.n. Orange 4 mi. S of Santa Ana. Comment
  UCSB25001  Lythrum hyssopifolia Booth, L. 1932-7-19 Orange Bolsas Creek Comment
  CAS-BOT-BC206254  Malacothamnus fasciculatus Louis C. Wheeler 1932-7-9 941 Orange Santa Ana River, 5 mi. below Prado 152 Comment
  CAS-BOT-BC206256  Malacothamnus fasciculatus Le Roy Abrams 1901-6-13 1781 Orange Laguna Comment
  POM124505  Malacothamnus fasciculatus L. R. Abrams 1918-5-26 s.n. Orange Near Laguna Beach Comment
  RSA702686  Malacothamnus fasciculatus Scott D. White, Michael Honer 2004-5-17 10400 Orange South Coast: City of Laguna Niguel. Ridges and open slopes directly north of the intersection of Crown Valley Parkway and Pacific Island Dr. 61 Comment
  UCR228805  Malacothamnus fasciculatus Dick Newell, Don Millar 2011-5-10 150 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
  OBI5977  Malacothamnus fasciculatus var. fasciculatus Carl B. Wolf 1931-7-25 2294 Orange N side of the Pear Orchard, Rancho Santa Ana, Santa Ana Can. 122 Comment
  IRVC29796  Malacothrix saxatilis var. tenuifolia Mark A. Elvin, Dean Kelch 2006-12-9 5328 Orange Newport Backbay; along Bayside Drive ca. 500 m NE of road to CA Dept Fish and Game office. Southern Coastal 3 Comment
  RSA0027428  Malacothrix saxatilis var. tenuifolia Fred M. Roberts 2013-7-18 7661 Orange San Joaquin Hills: Newport Beach, Buck Gully, along Buck Gully Trail, about 0.7 km from the north terminus of Poppy Street and 1.8 km WNW summit of Pelican Hill. 52 Comment
  CAS-BOT-BC347889  Malacothrix saxatilis var. tenuifolia Philip A. Munz 1950-8-5 15478 Orange Rancho Santa Ana Botanic Garden, on Santa Ana River 198 Comment
  IRVC841  Malacothrix saxatilis var. tenuifolia D. Frees 1965-3-27 Orange Newport Beach; East Bluffs. Southern Coastal Comment
  UCR188926  Malephora luteola Robert DeRuff 2007-11-24 s.n. Orange Newport Beach, Newport Back Bay,Big Canyon just west of San Joaquin Hills Road 34 Comment
  RSA12784  Malosma laurina Percy C. Everett 1934-10-4 6209 Orange N side of Irrigation Canal, opp. Orange Co. Plant Sanctuary, Rancho Santa Ana. 122 Comment
  RSA42473  Malosma laurina H. P. Bracelin 1941-7-27 1530 Orange [No additional locality data provided] Comment
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Jun 10 2012
  RSA471  Malva parviflora J. T. Howell 1928-3-17 870 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA649333  Malva parviflora C. J. Parenti 1971-3-7 D 15 Orange Collected in empty lot between West and Walnut Streets. About 1000 ft. from the Disneyland Hotel. 30 Comment
  RSA0093741  Malvella leprosa Fred M. Roberts 2014-4-21 7849 Orange South Coast. SAN JOAQUIN HILLS: Laguna Lake 1 (Upper Laguna Lake), south basin. 113 Comment
  UC537168  Malvella leprosa Lawrence M. Booth 1932-6-9 1174 Orange 1/2 mi. from ocean Santa Ana R. Comment
  RSA441223  Marah macrocarpa E. S. Spalding 1923-1-1 s.n. Orange Laguna Beach. Comment
  RSA734010  Marah macrocarpa A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34619 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
  RSA737539  Marah macrocarpa Fred M. Roberts 2008-3-12 6723 Orange Dana Point: Dana Point Headlands CNLM Preserve, western side, c.a. 0.8 km W Marine Institute (Dana Point Harbor). 50 Comment
  SD143935  Marah macrocarpa Scott D. White 1996-12-20 4633 Orange Santa Ana Mtns above Modjeska Canyon. Proposed water tank site. 424 Comment
  RSA441224  Marah macrocarpa E. Crow 1929-2-22 161 Orange Santa Ana Mts., Calif Comment
  RSA701971  Marrubium vulgare Fred M. Roberts, David E. Bramlet 2003-6-20 5927 Orange Rancho Mission Viejo: Donna O Neill Land Conservancy, tributary to Christianitos Cyn, along Back Road, 1.48 km WNW Sycamore Gate. 189 Comment
  UCR237844  Marrubium vulgare Mark A. Elvin 2003-2-2 2273 Orange South Coast, San Joaquin Marsh, UCI campus SSE of intersection of Jamboree Blvd. and Campus Dr. 2 Comment
  RSA658205  Marrubium vulgare T. A. Daubert 1991-5-19 651 Orange Tucker Wildlife Sanctuary, Modjeska Canyon, turn around island. Comment
  UC1925602  Marsilea drummondii R. E. Riefner Jr. 2008-6-22 08 -209 Orange City of Yorba Linda, Santa Ana Canyon, La Palma Ave. near Old Village Road; UTM (NAD 83) 11S 0433046E, 3747903N Comment
  UC574970  Marsilea vestita subsp. vestita Arthur Haupt 1935-4-12 Orange Costa Mesa Comment
  UCR281940  Matricaria discoidea R. E. Riefner Jr. 2017-3-29 17- 117 Orange South Coast, San Clemente, San Clemente State Beach, North-central area, south of Ave. Calafia 39 Comment
  CAS-BOT-BC348167  Matricaria discoidea Ira L. Wiggins 1966-3-4 20493 Orange Along shoulder of Peralta Avenue, near junction of Newport Freeway and Riverside Highway Comment
  SDSU6335  Matricaria discoidea R. M. Beauchamp 1968-2-17 775 Orange 7 miles east of intersection of Interstate #5 on El Toro Road. Comment
  UCR103165  Matricaria matricarioides Scott D. White 1997-3-26 4807 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
  CHSC69822  Matricaria occidentalis C. L. Mitchcock; C. V. Muhlick 1964-3-17 Orange Along road, 8 miles e. of Yorba Linda, Santa Ana Canyon. Comment
  CAS-BOT-BC60301  Matthiola incana E. K. Balls 1955-4-4 20423 Orange West end of Newport Beach. 3 Comment
  CDA6381  Mazus japonicus G. D. Barbe 1973-7-9 1694 Orange Bordier s Nursery, 7231 Irvine Boulevard, Santa Ana (Tustin). 0 Comment
  UC1607993  Meconella denticulata Donald G. Nelson 1935-4-6 249 Orange E of San Juan Capistrano just S of boundary of Cleveland National Forest Comment
  IRVC2372  Medicago polymorpha Robin Hobson 1965-4-10 s.n. Orange Santa Ana Heights; 2431 Mesa Dr. Southern Coastal Comment
  IRVC2381  Medicago polymorpha L. Aldis 1965-3-1 s.n. Orange Costa Mesa; Senate St. Southern Coastal Comment
  RSA653186  Medicago polymorpha David Barrios 1991-5-1 11 Orange Yorba Linda, 1500 ft. northwest of Fairmont Ave and Quail Circle. (117 deg. 45' 00'' +4 28 / 33 deg. 52' 37'' + 37 51.5). 365 Comment
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Dec 5 2007
  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
  UCD107897  Medicago polymorpha Ira L. Wiggins 1966-3-31 20568 Orange Shoulder of Associated Road, 200 m. S of the Imperial Highway, Fullerton. Comment
  RSA398  Medicago sativa J. T. Howell 1927-7-27 498 Orange Near ranch, Rancho Santa Ana 152 Comment
  UCD170853  Medicago truncatula R. E. Riefner Jr. 2011-5-20 11 -55 Orange South Coast, city of San Clemente, Avenida La Pata one block west of Calle Extremo at entrance to Richard Steed Memorial Park. 161 Comment
  RSA746480  Medicago truncatula R. E. Riefner Jr. 2007-4-1 07 -168 Orange City of Laguna Niguel, Laguna Niguel Regional Park, general vicinity of La Paz Rd. at Aliso Creek. 63 Comment
  RSA785574  Melaleuca nesophila R. E. Riefner Jr., Cindy Hopkins 2011-7-1 11 -82 Orange City of Newport Beach. Beach area west of the end of Cameo Shores Road. South ca. 1 mi from Poppy Ave. 2 Comment
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Dec 20 2012
  CAS-BOT-BC414241  Melaleuca viminalis R. E. Riefner, Jr. 2014-7-13 14 -242 Orange City of Seal Beach, N side of Westminster Blvd., ca. 0.2 mi W of Road B 5 Comment
  UCR140883  Melaleuca viminalis Robert DeRuff 1987-7-18 301 Orange Southern Coast, Newport Beach, Big Canyon, near Jamboree Road 11 Comment
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Jun 5 2006
  UC1929696  Melaleuca viminalis R. E. Riefner Jr. 2007-4-1 07 -163 Orange City of Laguna Niguel, Oso Creek, ca. 1.5 mi N from Paseo De Colinas St. on Camino Capistrano St. Comment
  POM296605  Melica imperfecta Lyman Benson 1932-3-26 3201 Orange Dana Point 60 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
  SD123844  Melica imperfecta E. W. Lathrop 1966-5-13 6298 Orange Santa Ana Mountains, 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland Nat'l Forest 395 Comment
  UCR205982  Melica imperfecta Erynn Maynard 2007-8-2 s.n. Orange Peninsular Range; Santa Ana Mtns., Starr Ranch Sanctuary, 100 Bell Canyon Rd., city of Trabuco Canyon 488 Comment
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Sep 5 2010
  IRVC29824  Melilotus albus Artie Thomas, Mark A. Elvin 2006-9-23 609236 Orange San Joaquin Marsh Freshwater Marsh, UC Natural Reserve; SW edge, along San Diego Creek, N of University Drive, E Hwy 73. Southern Coastal 2 Comment
  UC537003  Melilotus albus Lawrence M. Booth 1932-7-4 1252 Orange Newport Lagoon Comment
  SEINET12169950  Melilotus albus S. A. Thompson, Rawlins, J. E. 1988-8-27 5261 Orange Cleveland National Forest, 3.8 mi E of San Juan Hot Springs on CA 74 370 Comment
  IRVC2405  Melilotus indicus L. McCabe 1965-4-14 s.n. Orange Newport Beach; Corona del Mar. Southern Coastal Comment
  IRVC2409  Melilotus indicus S. Holloway Apr 1965 s.n. Orange Corona del Mar. Newport Beach Comment
  RSA750902  Melilotus indicus A. C. Sanders, Fred M. Roberts 2008-7-3 35711 Orange Weir Canyon, along Weir Canyon Rd. 1.2 mi. SSE of Walnut Canyon Reservoir, below Upper Blind Canyon Rd. 212 Comment
  UCR103153  Melilotus indicus Scott D. White 1997-3-26 4808 Orange Univ. of Calif. Irvine Campus, east of main campus at site of proposed student recreation center, east of main campus, between California Avenue and Culver Drive. 40 Comment
  RSA594802  Melinis repens Fred M. Roberts, Terasa Bruckenstien 1992-3-19 4837 Orange Rancho Mission Viejo, San Juan Creek east of San Juan Capistrano and just north of Ortega Highway bridge, 3.6 km. SSW Median Rancho Survey Mark., UTM Z11 37 08 900m N, 4 42 100m E 49 Comment
  RSA0127345  Mentzelia dispersa Fred M. Roberts 2016-4-29 8048 Orange Lomas de Santiago: north of Santiago Canyon Road, southwest slope of hill marked 1332 on topo maps, just west of Irvine Lake, 1.6 km S Irvine Lake dam spillway and 0.8 km NW Irvine Lake Park. 335 Comment
  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
  RSA759203  Mentzelia micrantha Robt. Allen, Reginald Durant 2008-5-16 s.n. Orange Modjeska Peak, S face, base of a steep fire break cut from the summit down to the access road. Survey point 61. 1634 Comment
  IRVC14  Mesembryanthemum crystallinum L. Stilgenbauer 1965-3-20 Orange Corona del Mar, 339 Milford Dr. Newport Beach Comment
  RSA234539  Mesembryanthemum crystallinum James Henrickson 1970-7-24 4982 Orange 2 miles NW of Huntington Beach around small freshwater industrial pond at eastern margin of Bolsa Chica Salt Marsh along Huntington Beach Mesa. 0 Comment
  UCR100444  Mesembryanthemum nodiflorum B. G. Pitzer 1996-4-30 2775 Orange South Coast, Upper Newport Bay, Calif. Dept. Fish & Game Ecological Reserve, off (W of) Jamboree Road 6 Comment
  UCR3314  Mesembryanthemum nodiflorum Cary Brown 1964-3-28 28364- 04 Orange South Coast, Hwy 101 alternate, 1 mile north of San Clemente 6 Comment
  RSA5962  Mesembryanthemum nodiflorum C. B. Wolf 1932-9-13 4034 Orange Bryant Ranch: Triangle of waste ground S of Bryant Ave., & 1/2 mi. west of Los Alamitos Blvd., (Triangle waste ground at NW corner of SW 1/4 sect. 30 T4S R11W) 8 Comment
  RSA543973  Micropus californicus Steve Boyd, Orlando Mistretta 1991-5-9 6203 Orange Crest of range at Oak Flat, SE of Sierra Peak, just West of Riverside County Line. 793 Comment
  RSA702990  Microseris douglasii subsp. platycarpha D. E. Bramlet, Fred M. Roberts 2003-3-27 3358 Orange Donna O'Neill Reserve. NE corner of the reserve 23m west of Cristianitos Rd. and 168m north of the E-W access road. 120 Comment
  UCR158228  Microseris douglasii subsp. platycarpha Adrian Wolf, David Charlton 1998-4-22 129 Orange South Coast, San Joaquin Hills, Shady Canyon east of Sand Canyon Reservoir, 1 mile [ESE] of French Hill, south of gravel road toward Sand Cyn. Rd 79 Comment
  UCR177425  Microseris heterocarpa Scott D. White, Amanda Duchardt 2003-3-27 8850 Orange Peninsular Ranges/Santa Ana Mtns, Canyon bottom and W-facing slopes above Canada Gobernadora 183 Comment
  RSA785531  Microseris lindleyi Doris Bowers 1971-4-19 1683 Orange Black Star Canyon Indian Site 762 Comment
  JEPS87319  Mimulus David M. Thompson 1992-5-16 1067 Orange 2.4 mi n Hwy 1 (along Hwy 133 (Laguna Canyon Road)) 50 Comment
  UC1577075  Mimulus A. Lewis Mar 1934 365 Orange Head of Silverado Canyon Cleveland National Forest, Corona Quadrangle Comment
  UC1577076  Mimulus A. Lewis May 1934 407 Orange San Juan Canyon Cleveland National Forest, Elsinore Quadrangle Comment
  UC171037  Mimulus H. M. Hall 1913-5-28 9403 Orange Santiago Canyon Comment
  UCD122208  Mimulus aurantiacus Raymond A. Evans 1949-5-14 s.n. Orange Sea bluffs at Corona Del Mar. Comment
  UCR192087  Mimulus aurantiacus var. aurantiacus A. C. Sanders, Fred M. Roberts, Amber O'Neal, D. E. Bramlet 2008-5-9 35300 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along old dirt road, c. 1.25 mi. ESE of Walnut Cyn Reservoir 340 Comment
  RSA542494  Mimulus aurantiacus var. pubescens Fred M. Roberts, Carol A. Roberts 1988-5-12 3965 Orange Anaheim Hills: Upper Deer Canyon, 7.7 km W Sierra Peak. 268 Comment
  UC943850  Mimulus aurantiacus var. pubescens H. E. McMinn, M. Van Rensselaer 1945-6-10 1912 Orange slope on n side Santa Ana River; Santa Ana Canyon Comment
  UCSB47965  Mimulus aurantiacus var. pubescens Roberts, Fred 1980-4-3 Orange San Juan Canyon; HWY 74; 0.4km NNE Lower San Juan Picnic Ground; Santa Ana Mountains 420 Comment
  UCSB48356  Mimulus aurantiacus var. pubescens Roberts, Fred 1982-4-18 Orange Santa Ana Mtns; San Juan Canyon; Hwy 74; 0.6km SW Lower San Juan Picnic Ground; 1.9km WNW Sitton Peak 420 Comment
  RSA0113246  Mimulus aurantiacus var. pubescens Lyman Benson 1946-4-27 12057 Orange Corona del Mar. 15 Comment
  LA209127  Mimulus aurantiacus var. puniceus Joseph Andorfer Ewan; 1932-7-28 7692 Orange Corona del Mar Comment
  RSA749355  Mimulus brevipes Fred M. Roberts 2008-4-22 6918 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
  RSA790706  Mimulus brevipes L. C. Hull 1934-4-8 15 Orange Laguna Hills. Comment
  RSA726  Mimulus cardinalis J. T. Howell 1927-7-6 283 Orange Santa Ana River bottom, Rancho Santa Ana 152 Comment
  RSA769620  Mimulus cardinalis E. W. Lathrop 1974-6-27 7428 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  UCR193810  Mimulus cardinalis A. C. Sanders, Fred M. Roberts 2008-7-16 35832 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, canyon c. 0.12 mi. below Dripping Spring, c. 7.5 mi. ESE of Tustin 360 Comment
  UC718440  Mimulus clevelandii P. C. Everett 1935-6-18 7200 Orange 7 mi from Santiago Peak Lookout Station (Mian Divide Motorway); Santa Ana Mts. 1310 Comment
  UCSB69276  Mimulus floribundus Sanders, A.; Salvato, T. 2008-5-13 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; in Hangman Tree and in open sand along Santiago Cr. wash 366 Comment
  RSA710408  Mimulus guttatus Fred M. Roberts 2005-10-3 6296 Orange San Juan Capistrano: San Juan Creek wash, La Novia Road Bridge to 100m E of bridge, 1.4km E Mission San Juan Capistrano, 27 Comment
  SEINET4095732  Mimulus guttatus E. D. Crow 1929-1 213 Orange Park south. Comment
  UCR158806  Mimulus pilosus A. C. Sanders, Mark A. Elvin 2005-9-2 31602 Orange Peninsular Range; Santa Ana Mtns., mouth of Lion Canyon near Lower San Juan Picnic Area, San Juan Creek Canyon 427 Comment
  RSA423690  Minuartia californica M. B. Dunkle 1935-2-10 4335 Orange Laguna Creek; Coastal Southern California. 61 Comment
  RSA759204  Minuartia douglasii var. douglasii Robt Allen, Reginald Durant 2008-5-16 s.n. Orange Modjeska Peak, S face, base of a steep fire break cut from the summit down to the access road. Survey point #61 1634 Comment
  UCR106278  Mirabilis californica B. G. Pitzer, M. Georgiady 1997-4-5 3080 Orange San Joaquin Hills, Crystal Cove State Park, along 'No Dogs' Trail (from parking area, along western bottom edge of ridge between Muddy Canyon & Moro Canyon), to just below intersection with 'Poles' trail 152 Comment
  SEINET11941951  Mirabilis californica J. F. Bright, Wyman, C. 1933-1 8105 Orange In Santa Ana Foothills Comment
  RSA698209  Mirabilis laevis L. C. Hull 1934-3-7 s.n. Orange Laguna Hills Comment
  UCR192489  Mirabilis laevis A. C. Sanders, Fred M. Roberts 2008-3-25 34556 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  UC536921  Mirabilis laevis var. crassifolia Lawrence M. Booth 1932-5-12 1035 Orange Newport Bay Comment
  POM9829  Mirabilis laevis var. crassifolia P. A. Munz, R. D. Harwood 1920-4-24 3759 Orange Sierra [Freemont] Canyon, Santa Ana Mountains. 366 Comment
  SBBG128642  Monardella hypoleuca subsp. intermedia A. C. Sanders, M. A. Elvin 2005-9-2 31613 Orange near head of Holy Jim Cyn, a major tributary of Trabuco Cyn, along the trail in the switchbacks, below the towers on Santiago Peak; Santa Ana Mtns 998 Comment
  UCD19273  Monardella hypoleuca subsp. lanata John F. Sorenson 1989-7-1 s.n. Orange Santa Ana Mtns, ridge on north side of Modjeska Peak. Comment
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Jan 7 2018
  POM4047  Monardella lanceolata var. lanceolata L. R. Abrams 1901-7-13 1788 Orange San Joaquin Hills. Comment
  RSA539388  Monardella lanceolata var. lanceolata Fred M. Roberts, Carol A. Roberts 1988-6-10 4092 Orange Santa Ana Mountains: Main Divide Truck trail, Modjeska Peak, west slope, 1.1 km SW summit. 1524 Comment
  UCSC001506  Monardella macrantha Peter Kamb 1948-6-19 1115 Orange Southeast slope of Santiago Peak Santiago Peak - Santa Ana Mts. 1219 Comment
  CAS-BOT-BC275293  Muhlenbergia microsperma LeRoy Abrams 1903-4-18 3260 Orange Trabuco arroyo near Capistrano Comment
  UCD86820  Muhlenbergia microsperma A. A. Beetle 1942-4-19 3100 Orange Rt. 101. 5 miles south of Laguna Beach. Comment
  UCR247871  Muhlenbergia rigens Fred M. Roberts 2012-9-6 7696 Orange SAN JOAQUIN HILLS: Buck Gully, Buck Gully Trail, west end near Poppy Street entrance, 2.1 km WNW Pelican Hill summit. 37 Comment
  UCSB48199  Muhlenbergia rigens Roberts, Fred 1981-6-26 Orange Viejo Cyn., 0.4 km N Calif. Rte. 74; 2.7 km ENE San Juan Guard Station; Santa Ana Mts. 311 Comment
  SEINET3402284  Muilla maritima L. Abrams 1903-4-18 3263 Orange Capistrano Comment
  CAS-BOT-BC219358  Nama stenocarpa Munz; Street; Williams 1919-5-4 2681 Orange Laguna Beach Region. Laguna Canon [Canyon] Comment
  RSA799944  Nama stenocarpa Justin M. Wood 2011-6-28 4309 Orange South Coast: City of Costa Mesa; Fairview Park, just WNW of Marison Special Education Center. 24 Comment
  UCR158038  Nama stenocarpa Adrian Wolf 1998-6-23 358 Orange South Coast, northernmost of the Laguna Lakes in Laguna Canyon, southern edge of lake on west side of Laguna Canyon Rd. 119 Comment
  UCR158039  Nama stenocarpa Adrian Wolf 1998-7-21 402 Orange South Coast, Emerald Canyon, Laguna Coast ranges, 3 km up canyon from Pacific Coast Hwy, 2.75 km SW of Laguna Canyon Rd. and El Toro intersection 122 Comment
  RSA263717  Nassella lepida E. W. Lathrop 1966-4-18 6179 Orange 4 mi NE of Lake Irvine, Black Star Canyon, Cleveland National Forest, Trabuco District. Comment
  RSA70  Nassella lepida J. T. Howell 1927-6-9 65 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA184108  Nassella pulchra I. L. Wiggins 1966-3-16 20527 Orange Entrance to Firestone Boy Scout Reservation. Comment
  RSA542547  Nassella pulchra Fred M. Roberts 1988-2-9 3782 Orange Lomas De Santiago: Loma Ridge, 1.5km N Bee Survey Mark., UTM 373 3700m N, 435 200m E 385 Comment
  RSA682762  Nassella pulchra Scott D. White, Amanda Duchardt 2003-3-27 8864 Orange Canyon bottom and west facing slopes above Canada Gobernadora. 91 Comment
  UCD87441  Nassella pulchra A. A. Beetle 1942-4-19 3103 Orange Rt. 101. 5 miles south of Laguna Beach. Comment
  RSA443822  Nasturtium officinale Gordon Marsh 1975-7-28 s.n. Orange Huntington Beach: East Garden Grove-Wintersburg Flood Control Channel, just N of Warner St. bridge crossing, (No. C05) Comment
  UC1618099  Navarretia Donald G. Nelson 1935-7-15 296 Orange Costa Mesa, Tracy locality Costa Mesa; , Tracy locality Comment
  UCR24248  Navarretia hamata subsp. leptantha Alfred R. Roos 1941-6-14 s.n. Orange Corona del Mar 91 Comment
  RSA468366  Navarretia prostrata Anstruther Davidson 1890-05 s.n. Orange Laguna Beach. Comment
  RSA234542  Nemacaulis denudata var. denudata James Henrickson 1970-7-24 5017 Orange 3 miles NW of Huntington Beach on sandy ''Rabbit'' Island in Bolsa Chica Salt March near Inner Bolsa Bay. 1 Comment
  UCD170319  Nemacaulis denudata var. denudata O. F. Clarke 2003-5-7 s.n. Orange South Coast, Least Tern Reserve, just north of the mouth of the Santa Ana River, Huntington Beach. 4 Comment
  JEPS5413  Nemacladus longiflorus var. longiflorus Alice King May 1907 Orange near Santa Ana Comment
  RSA699661  Nemophila menziesii Keith E. Hoffmaster 1927-4-8 s.n. Orange Santa Ana Mountains. Comment
  RSA75869  Nemophila menziesii var. integrifolia F. W. Peirson 1923-5-6 3495 Orange Large patches on summit region. Santiago Peak, Santa Ana Mts 1723 Comment
  RSA17173  Nicotiana bigelovii var. wallacei Percy C. Everett 1935-6-28 7259 Orange 8/10 of a mi. east of Atwood. S. side of R. R. tracks. 1067 Comment
  UC424185  Nicotiana clevelandii Philip A. Munz 1923-4-4 Orange Laguna Beach Comment
  CAS-BOT-BC231674  Nicotiana glauca C. L. Hitchcock 1966-3-15 24144 Orange Stearns Lease, 1 1/2 miles e. of Brea Comment
  CAS-BOT-BC231676  Nicotiana glauca Ira L. Wiggins 1965-11-6 20348 Orange Near Well No. 14, Kraemer Oil Estates near end of county road leading to Rancho Sanata Ana Comment
  CDA1049  Nicotiana glauca D. G. Kelch 2006-12-9 6 .542 Orange Along Newport Back Bay Dr. in side canyon. Comment
  RSA718957  Nicotiana glauca Fred M. Roberts, Robert L. Allen 2006-10-8 6423 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
  RSA731971  Nicotiana glauca A. C. Sanders, Fred M. Roberts 2008-4-8 34738 Orange Peninsular Range: Lomas de Santiago, Loma Ridge, head of Hicks Canyon. S of Santiago Reservoir. 351 Comment
  POM201710  Nicotiana glauca L. M. Booth 1932-7-30 1338 Orange Santa Ana River, 2 miles from ocean Comment
  RSA662315  Nicotiana glauca Dolores Perez 1981-4-11 1 Orange Carbon Canyon Rd., 6 miles E. of junction with Ca Hwy 90. Comment
  JEPS12369  Nicotiana quadrivalvis Alice King Apr 1908 Orange Santiago Creek; Santa Ana Mountains Comment
  RSA127  Nolina cismontana J. T. Howell 1927-7-28 507 Orange Nolina Canyon, Rancho Santa Ana 152 Comment
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Apr 8 2018
  RSA643664  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
  RSA716093  Nolina cismontana Fred M. Roberts, Carol A. Roberts 2006-4-28 6323 Orange Mision Viejo: near Vista del Lago Dr., 0.9km NE jct. Vista del Lago and Los Alios Blvd., 1.7km NNW Lake Mission Viejo dam. 211 Comment
  RSA759277  Nolina cismontana Robt. Allen, Lori Whalen 2008-7-5 s.n. Orange Dry foothills along a SW-facing ridge, slong Santiago Truck Trail, 0.5 air miles E of USPF Forest Gate at Modjeska Grade Road. Comment
  UC1593835  Nolina parryi James C. Dice 1986-5-31 653 Orange along sw edge of Vista del Lago just w intersection with Canaveras (1.2 km nw of Lake Mission Viejo); Mission Viejo 83 Comment
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May 24 2020
  CAS-BOT-BC171487  Oenothera californica Helen D. Geis 1902-3-1 s.n. Orange Santa Ana sand dunes Comment
  RSA17145  Oenothera californica subsp. californica Carl B. Wolf 1936-6-12 7944 Orange 1 mile E of Atwood. 91 Comment
  SD43505  Oenothera elata subsp. hirsutissima P. A. Munz 1947-9-10 12133 Orange Edge of garden in river bottom, Rancho Santa Ana, Santa Ana River Canyon. 121 Comment
  CDA6653  Oldenlandia corymbosa G. D. Barbe 1973-8-9 1695 Orange Bordier s Nursery, 7231 Irvine Blvd., Santa Ana (Tustin). 0 Comment
  POM506  Oligomeris linifolia D. L. Crawford s.n. Orange Aliso Pt. (Laguna Beach region) Comment
  RSA0035855  Oncosiphon piluliferum R. E. Riefner Jr. 2012-4-22 12 -71 Orange city of Newport Beach, Newport Bay, Dover Shores, vicinity of West Wind Way and Santiago Drive 22 Comment
  POM288521  Opuntia X occidentalis Lyman Benson 1955-10-17 15597 Orange Moulton Ranch just west of the summit east of Laguna Beach. 152 Comment
  RSA562722  Opuntia X occidentalis Steve Boyd, Timothy S. Ross 1992-5-19 7425 Orange Southern Santa Ana Mountains San Mateo Canyon Wilderness Area. Western edge of the wilderness along Lucas Canyon Trail from access road to Rancho Carrillo (7S06) N into Aliso Canyon. 366 Comment
  UC1313041  Opuntia X occidentalis Janet McIntosh 1966-4-9 17 Orange State Hwy 74 20 mi ne San Juan Capistrano Comment
  UCD97983  Opuntia X occidentalis Janet McIntosh 1966-4-9 17 Orange State Highway 74, 20 miles northeast of San Juan Capistrano. Comment
  HSC3800  Opuntia littoralis J. W. Johnson 1961-3-29 Orange Newport Beach, slope overlooking Upper Newport Bay. Comment
  POM284094A  Opuntia littoralis Lyman Benson 1955-10-17 15598 Orange Moulton Ranch just west of the summit east of Laguna Beach. 152 Comment
  POM317735  Opuntia littoralis David Walkington 1963-5-23 175 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-BC56867  Opuntia oricola L. R. Abrams 1917-6-23 6558 Orange Field redacted by CAS, contact the data manager for more information Comment
  UCR229098  Opuntia oricola T. B. Salvato 2010-10-27 5128 Orange South Coast, Dana Point Headlands, Harbor Point Park, south of Scenic Dr. and Cove Rd., beyond the end of Green Lantern St., overlooking Dana Point Harbor 70 Comment
  RSA590943  Orthocarpus purpurascens Fred M. Roberts Jr. 1991-5-2 4784 Orange San Joaquin Hills: Laguna Canyon, Laguna Laurel, just west of Laguna Canyon Road. c.a. 2 km N jct. El Toro Road, 4.5 km E Signal Peak; 110 Comment
  RSA658636  Orthocarpus purpurascens var. purpurascens Al Muth 1971-3-26 30 Orange Jct. Santiago Cyn. Road and Modjeska Cyn Road. 457 Comment
  CAS-BOT-BC355779  Osmadenia tenella Herbert L. Mason 1925-4-25 2903 Orange 5 miles south of Laguna Comment
  UCR209663  Osmadenia tenella Fred M. Roberts 2008-5-16 6984 Orange South Coast, Dana Point Headlands, Center for Natural Lands Mgmt. Preserve north of Marguerita Drive, 0.5 km west-northwest of the Marine Institute, Dana Point Harbor 75 Comment
  UCR76185  Osmorhiza brachypoda B. G. Pitzer, Stu Hemstreet 1992-5-27 1951 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, along Forest Service Road 3S04 to Blue Jay Group Campground, off Hwy 74 (Ortega Hwy), c. 2 mi west of El Cariso Campground 765 Comment
  IRVC29885  Osteospermum ecklonis Mark A. Elvin, D. Kelch, Barry S. Nerhus, Patricia Iluore 2006-12-9 5326 Orange Newport Backbay; along Bayside Drive ca. 100 m W of Eastbluff Dr. Southern Coastal 5 Comment
  SEINET10875322  Osteospermum ecklonis David B. Dunn Dunn 22404 Orange Collected around the condominium-Pacific Island Estates in Laguna Niguel area. 30 Comment
  POM353432  Oxalis albicans subsp. californica Carl B. Wolf 1931-3-6 1858 Orange Trabuco Canyon, 1.5 mile below Trabuco Camp Grounds 549 Comment
  RSA518448  Oxalis albicans subsp. californica C. W. Tilforth, Dorothy Tilforth 1977-3-6 1258 Orange Small canyon west of Gypsum Canyon, south side of Santa Ana River, Santa Ana Canyon 152 Comment
  RSA0023268  Oxalis californica Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49785 Orange Santa Ana Mountains: Trabuco Canyon. Comment
  POM196704  Oxalis pes-caprae E. Johnson 1930-2-25 s.n. Orange About Orange Comment
  POM278932  Oxalis pes-caprae Lyman Benson, Cora W. Benson 1929-1-19 s.n. Orange Santa Ana 61 Comment
  RSA16483  Oxytheca trilobata Percy C. Everett 1935-6-19 7224 Orange Santa Ana Mountains, Main Divide Motorway 1.5 mi. below summit Santiago Peak, E slope. 1311 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-BC121213  Paeonia californica C. B. Wolf 1936-6-17 7949 Orange Santa Ana Mtns, along Ortega Hwy, 6/10 mi. below San Juan Hot Springs. 182 Comment
  RSA434261  Paeonia californica M. B. Dunkle 1933-3-5 3095 Orange San Juan Canyon, Comment
  RSA501314  Paeonia californica S. Zona, G. A. Allen, A. Liston, L. Rieseberg 1989-2-5 304 Orange San Juan Hot Springs along Ortega Hwy, alt 230m. 230 Comment
  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
  RSA698740  Paeonia californica Mary Oliver s.n. Orange Santa Ana canyon. Comment
  RSA797016  Pallenis maritima R. E. Riefner Jr. 2011-7-1 11 -86 Orange City of Newport Beach, rocky beach between Shorecliff Road and Cameo Shores Road. 1 Comment
  RSA731537  Panicum dichotomiflorum subsp. dichotomiflorum R. E. Riefner 2007-9-14 7 -395 Orange City of Anaheim, Santa Ana River bottom near 57-Freeway between Orangewood St. and Chapman Ave. 41 Comment
  SD181750  Parapholis incurva Valerie Soza, K. Clark,LR. Gross,W. Miller,F. Roberts,G. Wallace 2001-4-4 1119 Orange Anaheim Bay; Seal Beach U.S. Naval Weapons Station, southwestern edge of Seal beach National Wildlife Refuge, alongside dirt road 3 Comment
  CAS-BOT-BC413392  Parietaria hespera var. hespera Marcus E. Jones 1926-3-13 s.n. Orange Santa Ana Canon [Canyon] Comment
  UCR230235  Parkinsonia aculeata Dick Newell, Don Millar 2011-3-22 090 Orange Peninsular Range; Santa Ana Mtns., Santiago Canyon Road, 1.2 miles east of 261 Toll Road 286 Comment
  SD247341  Parthenium hysterophorus Jan West 2015-4-22 Orange Santa Ana, SE corner of E 17th St. and Lincoln Ave., 0.5 km east of I-5 on 17th. Right-of-way between RR tracks and Lincoln, etc. 49 Comment
  UCR261556  Parthenium hysterophorus Jan West 2015-4-22 s.n. Orange Santa Ana, SE corner of E 17th St. and Lincoln Ave., 0.5 km east of I-5 on 17th 49 Comment
  RSA0026252  Parthenocissus vitacea Fred M. Roberts 2013-6-12 7798 Orange Peninsular Ranges: Santa Ana Mtns: Lower Silverado Canyon along Silverado Creek on north side of Silverado Canyon Road, 0.6 kilometers ENE Silverado School and 1.4 kilometers up stream Black Star Road Crossing. 320 Comment
  CDA22571  Paspalum dilatatum J. B. Anderson 1966-5-16 643 Orange Santa Ana Heights: Bayview Avenue and Zenith Avenue. 0 Comment
  IRVC29831  Paspalum dilatatum Tom McCrainie, Mark A. Elvin 2006-9-23 5 Orange San Joaquin Marsh Freshwater Marsh, UC Natural Reserve; SW edge, along San Diego Creek, N of University Drive, E Hwy 73. Southern Coastal 2 Comment
  RSA0028024  Paspalum dilatatum Fred M. Roberts 2012-9-6 7697 Orange San Joaquin Hills: Buck Gully, Buck Gully Trail, west end near Poppy Street entrance, 2.1 kilometers WNW Pelican Hill summit. 37 Comment
  UCR174227  Paspalum dilatatum A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33031 Orange Peninsular Range; Santa Ana Mtns., San Juan Canyon, from Lower San Juan Picnic Area to c. 1 mile downstream, parallel to Hwy 74 and near Riverside Co. line 396 Comment
  RSA766062  Paspalum vaginatum R. E. Riefner Jr. 2008-7-29 08 -256 Orange City of Dana Point, near Ritz-Carlton Hotel, Salt Creek Beach area. 1 Comment
  RSA769299  Paspalum vaginatum R. E. Riefner Jr., K. Campbell 2008-8-31 80 -267 Orange City of Irvine, tidal portion of San Diego Creek, Immediately east of Hwy. 73 overpass. 1 Comment
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Dec 14 2012
  UC2061661  Paspalum vaginatum R. E. Riefner Jr. 2008-7-29 08 -256 Orange City of of Dana Point, near Ritz-Car;ton Hotel, Salt Creek Beach area. Comment
  UCR204907  Paspalum vaginatum R. E. Riefner Jr. 2007-7-23 07- 314 Orange South Coast, city of Newport Beach, east of Jamboree Road at Bayview Way, San Diego Creek confluence with Newport Bay 6 Comment
  CAS-BOT-BC169736  Pectocarya anisocarpa Helen D. Geis 1902-3-27 s.n. Orange Santiago Creek Bed Comment
  RSA0045505  Pectocarya linearis Keith E. Hoffmaster 1935-3-17 841 Orange Near El Toro[Lake Forest] (Trabuco rd.). 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
  RSA220953  Pedicularis densiflora E. W. Lathrop 1966-4-6 6142 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  RSA184141  Pellaea andromedifolia var. andromedifolia I. L. Wiggins 1966-2-4 20420 Orange Trabuco Canyon, about 1/2 mi. above canyon mouth 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
  RSA30341  Pennisetum purpureum E. L. Paddock 1943-7-2 12738 Orange Near Dana Point. Comment
  UCR215288  Pennisetum setaceum Fred M. Roberts, D. E. Bramlet 2008-5-13 6957 Orange Santa Ana Mountains, upper Weir Canyon, central fork, 3.5 km NE of Robbers Peak 369 Comment
  RSA33780  Penstemon centranthifolius N. C. Cooper 1944-6-4 1351 Orange San Juan Canyon, lower camp ground. 457 Comment
  SEINET10299452  Penstemon centranthifolius Norman C. Cooper 1944-6-4 1351 Orange San Juan Canyon, Lower campground 457 Comment
  UCR26978  Penstemon heterophyllus subsp. australis E. W. Lathrop 1966-4-18 6186 Orange Santa Ana Mtns., 4 mi NE of Lake Irvine, Black Star Canyon, Cleveland National Forest, Trabuco District Comment
  RSA798599  Penstemon spectabilis Robert F. Thorne, E. W. Lathrop 1977-5-18 49735 Orange Northern Santa Ana Mountains: Pleasant's Peak Comment
  CAS-BOT-BC330341  Pentachaeta aurea Le Roy Abrams 1903-4-17 3259 Orange Near El Toro Comment
  LA203849  Pentachaeta aurea LeRoy Abrams; 1903-4-17 3259 Orange near El Toro Comment
  RSA594885  Pentachaeta aurea Fred M. Roberts, Stadlander, Vizgirdas 1992-4-24 4840 Orange El Toro Marine Base: Mouth of Borrego Wash, 2.9 km SE Lambert Reservoir dam. 189 Comment
  UC718583  Pentachaeta aurea P. C. Everett 1935-4-22 6463 Orange 1/4 mi w Horseshoe Bend; Santa Ana Canyon 121 Comment
  RSA580937  Pentachaeta aurea subsp. allenii D. E. Bramlet 1994-4-1 2367 Orange San Joaquin Hills, Camarillo Canyon area, some 427m W of Laguna Canyon Rd. and 671m N of Camarillo canyon 140 Comment
  RSA0060347  Pentagramma triangularis Gary D. Wallace, G. Cromwell 1966-4-16 459 Orange W edge of Cleveland Nat. For. about 5 mi. E of San Juan Capistrano, in the Santa Ana Mountains, in Hot Springs Canyon. Comment
  CAS-BOT-BC77150  Pentagramma triangularis subsp. triangularis Miss. Mason s.n. Orange Orange Comment
  IRVC14091  Pentagramma triangularis subsp. triangularis B. T. Gittins 1966-11-13 1672 Orange Silverado Canyon, 1mi past historical marker; shaded bank near stream bed. Santa Ana Mountains Comment
  RSA743385  Pentagramma triangularis subsp. viscosa Fred M. Roberts 2008-5-27 7009 Orange Dana Point: Dana Point Headlands, CNLM Preserve, 0.8km W Marine Institute, Dana Point Harbor. 45 Comment
  RSA710822  Persea cinerascens R. W. Scora 1997-5-13 5142 Orange Zentmyer Avocado Collection, Field 3, South Coast Field Station, Irvine. 21 Comment
  CAS-BOT-BC294750  Phacelia R. C. Wenk; P. Hopkinson; M. Hammond; P. Brownsey 2008-3-24 716 Orange Chino Hills State Park. South Ridge Road west of San Juan Hill, going west from Equestrian Staging Area 441 Comment
  UCR193073  Phacelia brachyloba A. C. Sanders, Mitch Provance 2008-5-20 35423 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago area, Santiago Creek Canyon, c. 3/4 mile below Modjeska Canyon confluence 355 Comment
  RSA679097  Phacelia cicutaria subsp. hispida Fred M. Roberts 2003-6-25 5952 Orange Santa Ana Mountains: Mojeska Peak in Upper Cold Springs Cyn., north of Main divide Truck Trail, 0.4 km ESE summit. 1471 Comment
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Jan 25 2007
  POM49689  Phacelia cicutaria var. hispida L. R. Abrams 1901-06 1820 Orange Santiago Peak trail. Comment
  RSA595  Phacelia cicutaria var. hispida J. T. Howell 1927-6-5 35 Orange Rancho Santa Ana, near east boundary. 152 Comment
  RSA769612  Phacelia cicutaria var. hispida E. W. Lathrop 1974-6-27 7430 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  UC1280311  Phacelia cicutaria var. hispida John M. Tucker 1941-5-30 257 Orange roadside on Ortega Hwy 2-3 mi e western boundary of National Forest; Cleveland National Forest Comment
  UCR192455  Phacelia cicutaria var. hispida A. C. Sanders, Fred M. Roberts 2008-3-25 34575 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
  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
  RSA426057  Phacelia davidsonii Christopher Davidson 1977-5-18 5608 Orange Cleveland National Forest; Santiago Peak (on Orange-Riverside Co. line) 1707 Comment
  POM8712  Phacelia distans P. A. Munz, R. D. Harwood 1920-4-17 3805 Orange Laguna Canyon 76 Comment
  RSA752042  Phacelia distans Fred M. Roberts 2008-3-27 6806 Orange Dana Point: Dana Point Headlands, CNLM Preserve near NE Gate, 0.5km W Marine Institute (Dana Point Harbor). 75 Comment
  UCSB48102  Phacelia distans Roberts, Fred 1982-4-3 Orange Santa Ana Mtns.: Lower Hot Springs Cyn., 0.6 km. by road N of San Juan Guard Station; 0.8 km. WSW Juan Rancho Survey Mark 240 Comment
  UCR192740  Phacelia grandiflora A. C. Sanders, Fred M. Roberts 2008-5-6 35220 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
  RSA697787  Phacelia hydrophylloides J. Russell Bruff 1937-7-3 847 Orange Kaiser Ridge above Huntington. Comment
  RSA603  Phacelia imbricata subsp. bernardina J. T. Howell 1928-5-12 965 Orange Between Aliso Canyon and Botany Garden. 366 Comment
  CHSC42254  Phacelia minor Rusti Gammon 1986-3-22 10 Orange Ca. 6 mi nw of San Juan Capistrano, in Bell Canyon, 2 mi n of hwy 74. Ca. 25 ft e of Bell Creek. 128 Comment
  RSA2112  Phacelia minor Carl B. Wolf 1931-3-6 1830 Orange Trabuco Canyon Road, 1.25 miles below Trabuco Oaks. 305 Comment
  SEINET7073421  Phacelia minor A. G. Vestal 1963-4-24 s.n. Orange La Paz Canyon, Rancho Mission Viejo. Coordinate datum: NAD27. Comment
  UC484229  Phacelia minor C. B. Wolf 1931-3-6 1830 Orange Trabuco Canyon Rd 1 1/2 mi below Trabuco Oaks; W. slope Santa Ana Mts. 304 Comment
  CAS-BOT-BC144975  Phacelia ramosissima var. austrolitoralis John Thomas Howell 1927-6-3 2417 Orange On sandy ridge, southern Puente Hills, Santa Ana Canyon 152 Comment
  RSA678724  Phacelia ramosissima var. austrolitoralis Fred M. Roberts, Robert Allen, Carol Roberts 2003-5-11 5855 Orange Dana Point Headlands: 0.8km SSW Richard Henry Dana School north of Marguerita Drive. 76 Comment
  RSA7465  Phacelia ramosissima var. latifolia Carl B. Wolf 1933-8-24 5389 Orange Summit of Santiago Peak, Santa Ana Mountains. 1707 Comment
  UCR224402  Phacelia suaveolens subsp. keckii Robt. L. Allen, Reginald Durant 2008-5-16 s.n. Orange Santa Ana Mountains, along access road to Modjeska Peak, outside the sharp bend in the extreme north end of the road. Survey Point #47 1514 Comment
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Jul 21 2018
  CAS-BOT-BC259032  Phalaris lemmonii D. E. Bramlet 2003-6-8 3461 Orange South Coast: Fairview Park in Costa Mesa, 152 m west of Canyon School and 396 m NW of intersection of Wilson & Canyon Dr. 24 Comment
  RSA610233  Phalaris lemmonii Fred M. Roberts, T. Bomkamp, R. Riefner 1996-4-19 4964 Orange Costa Mesa; Fairview Park, 0.1km W Canyon School 24 Comment
  UCR150384  Phalaris lemmonii D. E. Bramlet 1999-5-16 2764 Orange South Coast, Fairview Park, City of Costa Mesa. Some 336 m N of the intersection of Wilson and Canyon Dr. and 152 m west of the Canyon School, on a mesa overlooking the Santa Ana River 43 Comment
  CAS-BOT-BC250614  Phalaris minor Carl B. Wolf 1932-5-18 3636 Orange Rancho Santa Ana Botanic Garden, near East porch of administration bldg. 198 Comment
  CDA22545  Phalaris minor J. B. Anderson 1966-4-18 597 Orange Mac Arthur Boulevard near Red Hill Road. 0 Comment
  SEINET4182708 Image available Phalaris minor A. A. Beetle 1942-4-19 3091 Orange 20 Miles South of Santa Ana, road to Laguna Comment
  UCR170307  Phalaris minor J. B. Anderson 1966-4-18 597 Orange South Coast, MacArthur Blvd. near Red Hill Road [between Santa Ana and Irvine, NE of John Wayne Airport] 9 Comment
  POM263105  Phalaris minor J. C. Roos 1937-5-10 431 Orange Tustin Comment
  UCR4127  Philadelphus lewisii F. Zaebst 1959-4-19 4127 Orange Peninsular Range; Santa Ana Mtns., Coastal side of mountains on Calif. Hwy 74, 3.2 mi west of San Juan Guard Station, north side of road Comment
  UCR217471  Phoenix canariensis Mark A. Elvin 2003-2-23 2318 Orange South Coast, Irvine, San Joaquin Marsh along the berm of San Diego Creek 3 Comment
  CAS-BOT-BC222603  Pholistoma auritum var. auritum F. W. Peirson 1923-3-25 4481 Orange Aliso Creek, at sea level Comment
  SFV16190  Pholistoma auritum var. auritum R. K. Stachelek, B. Anderson, F. Schropshire 1995-3-1 38 Orange Newport Beach, Upper Newport Bay on Back Bay Drive about 0.5 miles north of Shellmaker Island. Mesic roadside at base of coastal bluff adjacent to semi-disturbed coastal sage scrub area. Comment
  RSA751398  Pholistoma racemosum R. E. Riefner Jr. 2008-5-20 8 -107 Orange Santa Ana Mts., Irvine Ranch Reserve, Fremont Canyon Conservation Easement, W Fork of Fremont Canyon, S of Donaldson Ranch. 377 Comment
  POM3998  Phyla lanceolata D. L. Crawford 1916-7-26 s.n. Orange Laguna Canyon Comment
  POM48015  Phyla lanceolata I. M. Johnston 1924-8-29 s.n. Orange 1 mi. N of Los Alamitos. Comment
  RSA759260  Phyla nodiflora Robert Allen, Vicky Malton, Raul Murillo Jr. 2008-5-11 s.n. Orange Lomas de Santiago, Whiting Ranch Wilderness Park. Along Santiago Ranch Road. 436 Comment
  UCR281509  Phytolacca icosandra Mitch Provance, Jeremiah George 2017-3-20 317- 101 Orange West Coyote Hills, Fullerton, vicinity of Utility Access Road W of Gilbert Street and N of Rosecrans Ave., on land previously occupied by oil fields. 131 Comment
  POM6223  Picris echioides D. L. Crawford 1915-09 505 Orange Huntington Beach. 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
  CAS-BOT-BC73334  Pinus attenuata Carl B. Wolf 1934-12-21 6259 Orange So. slope of main ridge, saddle n.w. of Sugarloaf Pk. (Pleasants Pk) 1 3/10 mi. so. of summit of Skyline Drive, 1158 Comment
  UC532151  Pinus attenuata C. B. Wolf 1934-12-12 6259 Orange saddle nw of Sugarloaf Pk. (Pleasants Pk.) (s slope of main ridge, 1.3 mi s of summit of Skyline Drive); Santa Ana Mts. 1158 Comment
  UCR231189  Pinus attenuata A. C. Sanders, T. B. Salvato, Kent Beaman 2011-11-3 39943 Orange Peninsular Range; Santa Ana Mtns., near Pleasants Peak along the Main Divide Truck Trail 1143 Comment
  RSA7683  Pinus coulteri C. B. Wolf 1933-11-8 5538 Orange From grove to N.W. of Trabuco Peak. 1250 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
  RSA539395  Pinus radiata Fred M. Roberts, Carol A. Roberts 1988-11-3 4163 Orange Santa Ana Mtns.: Upper Trabuco Canyon near Main Divide Truck Trail, 1.3km NE Los Pinos Peak 1268 Comment
  UCR231188  Pinus sabiniana A. C. Sanders, T. B. Salvato, Kent Beaman 2011-11-3 39944 Orange Peninsular Range; Santa Ana Mountains, Beek's Place on Main Divide Truck Trail 863 Comment
  UC1178460  Piperia leptopetala Peter Kamb 1948-6-19 1103 Orange Holy Jim Canyon Santa Ana Mts. 609 Comment
  RSA735973  Piptatherum miliaceum Scott D. White, Justin M. Wood 2008-4-22 11905 Orange Telegraph Canyon Road, E of Carbon Canyon Regional Park. 152 Comment
  RSA798191  Piptatherum miliaceum R. F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49569 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74) Comment
  UCR193349  Piptatherum miliaceum A. C. Sanders 2008-5-28 35438 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Bee Flat at mouth of Limestone Canyon 264 Comment
  UCSB48027  Piptatherum miliaceum Roberts, Fred 1980-7-7 Orange Santa Ana Mts.; San Juan Canyon, Calif. Rte. 74, 2.2 km. ENE San Juan Guard Station; 0.6 km. W Bench Mark 1100 305 Comment
  POM202524  Piptatherum miliaceum L. M. Booth 1932-6-28 1211 Orange Balboa Island, Newport Beach Comment
  RSA226741  Piptatherum miliaceum I. L. Wiggins 1965-9-26 20256 Orange Along N margin of La Vida Property, above the hot srings Comment
  RSA695484  Piqueria trinervia James Snow 1928-09 s.n. Orange Santa Ana Comment
  RSA450854  Plagiobothrys acanthocarpus Gordon Marsh 1978-10-16 s.n. Orange UC Irvine Ecological Preserve, near eastern fence line, draingae separating hills #1, #2. Comment
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Oct 7 2017
  UCR103154  Plagiobothrys acanthocarpus Scott D. White 1997-3-26 4819 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
  SD27970  Plagiobothrys collinus var. californicus Carl B. Wolf 1932-3-14 2710 Orange Rancho Santa Ana Botanic Garden 630 Comment
  UCSB14546  Plagiobothrys collinus var. californicus Breedlove, Dennis 1962-3-9 Orange 4.4 miles east of San Juan Capistrano on State 74 112 Comment
  RSA683082  Plagiobothrys nothofulvus Scott D. White, Amanda Duchardt 2003-5-1 9157 Orange Santa Ana Mtn Foothills; slopes above the west side of Canada Gobernadora and adjacent small canyon to the west. 76 Comment
  SBBG16000  Plagiobothrys nothofulvus D. E. Breedlove 1962-3-9 1795 Orange 4.4 mi E of San Juan Capistrano on St Hwy 74 112 Comment
  UCR191013  Plagiobothrys nothofulvus A. C. Sanders, Fred M. Roberts 2008-4-22 35030 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Limestone Canyon, c. 2 miles SW of Silverado 396 Comment
  RSA0045607  Plagiobothrys nothofulvus Keith E. Hoffmaster 1935-2-9 840 Orange Santa Ana Mts., El Toro. Comment
  SBBG63887  Plagiobothrys nothofulvus E. Rockwell -Feb-1920 59 b Orange Santiago Cyn 365 Comment
  UCSB47617  Plagiobothrys nothofulvus Roberts, Fred 1980-5-3 Orange Santa Ana Mtns.: 0.3 km. NNW Blue Jay Campground 1020 Comment
  SD181425  Plantago coronopus Valerie Soza, Kevin Clark, LeRoy Gross, Will Miller, 2001-4-4 1121 a Orange Anaheim Bay: Seal Beach U.S. Naval Weapons Station, southwestern edge of Seal Beach National Wildlife Refuge. 3 Comment
  RSA799623  Plantago elongata subsp. elongata Justin M. Wood 2011-4-12 3655 Orange South Coast: City of Costa Mesa. Fairview Park, just WNW of Marison Special Education Center. 24 Comment
  RSA401950B  Plantago erecta Anstruther Davidson 1910-04 2475 Orange Corona Del Mar. Comment
  RSA401987B  Plantago erecta Anstruther Davidson 1910-4-1 s.n. Orange Corona Del Mar. Comment
  UCR171018  Plantago erecta R. E. Riefner Jr. 2006-4-12 06- 118 Orange Irvine, north foot of San Joaquin Hills, vicinity of Quail Hill, SSW of 405 Freeway and Shady Canyon Rd. 46 Comment
  UCR209373  Plantago erecta Fred M. Roberts, Linda Farley 2008-3-28 6815 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
  CHSC116482  Plantago erecta subsp. erecta R. F. Thorne; C. W. Tilforth, E. W. Lathrop 1977-4-27 49653 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. Comment
  POM260478  Plantago indica Ella Carter 1941-08 1 Orange Near fish canneries, not far from 29th str, Newport Beach. Comment
  RSA542454  Plantago indica Fred M. Roberts 1987-6-30 3469 Orange Bolsa Chica Salt Marsh: Pacific coast Hwy, 0.8kim SE Warner. 2 Comment
  JEPS7123  Plantago lanceolata Lawrence M. Booth 1932-7-18 1266 Orange Costa Mesa Comment
  RSA730990  Plantago lanceolata Fred M. Roberts 2006-11-15 6464 Orange Santa Ana Cyn., 1.0 km ENE Imperial Hwy bridge, between La Palma Ave. and Santa Ana River near Big Springs St. 89 Comment
  UC536902  Plantago lanceolata Lawrence M. Booth 1932-7-18 1266 Orange Costa Mesa Newport Bay Comment
  RSA791465  Plantago lanceolata Keith E. Hoffmaster 1927-5-18 955 Orange Santa Ana. CP3. Comment
  RSA412578  Plantago major Albert J. Perkins 1920-08 s.n. Orange Santa Ana. [Fair Raven Ave.?] Comment
  RSA5949  Plantago major Carl B. Wolf 1932-7-7 3861 Orange Opposite the Bryant Ranch: on N side of Bryant Avenue, 0.5 mile east of Los Alamitos Boulevard near Los Alamitos. 8 Comment
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Apr 8 2014
  JEPS4909  Plantago subnuda Lawrence M. Booth 1932-6-17 1208 Orange Bolsas Creek Comment
  RSA725533  Platanus X acerifolia Fred M. Roberts 2007-9-11 6567 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
  UCR195023  Platanus acerifolia A. C. Sanders, Fred M. Roberts 2008-8-7 35976 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
  RSA542453  Platanus racemosa Fred M. Roberts 1988-4-8 3898 Orange Lomas de Santiago: Loma Ridge, Central Linestone Canyon, 4.1 kilometers NNW Bolero Lookout. 323 Comment
  RSA750924  Platanus racemosa A. C. Sanders, Fred M. Roberts 2008-7-3 35700 Orange Weir Canyon, along Windy Ridge Rd. at wash crossing, 0.95 mi. SE of Walnut Canyon Reservoir 242 Comment
  SEINET5642642  Platanus racemosa Shelby J. Wood 2013-3-9 13 Orange Huntington Beach, Central Park.; 0 Comment
  UCSB48123  Platanus racemosa Roberts, Fred 1981-4-11 Orange Highway 74; 5.2km E San Juan Capistrano, near crossing of San Juan Creek 52 Comment
  CAS-BOT-BC226913  Plecostachys serpyllifolia R. E. Riefner, Jr. 2011-6-25 11 -73 Orange City of Laguna Beach, Moss Point, vicinity of Ocean Way at Ruby St. 6 Comment
  OBI74940  Plecostachys serpyllifolia Unknown 2006-7-26 06 -319 Orange City of Irvine, N side of Irvine Blvd. at SR133 on ramp 64 Comment
  SEINET4176011 Image available Plecostachys serpyllifolia R. E. Riefner Jr. 2009-7-18 09 -151 Orange City of Dana Point, near Salt Creek, vicinity of Ritz Carlton Resort 3 Comment
  UCR238459  Plecostachys serpyllifolia R. E. Riefner Jr. 2005-9-9 05- 654 Orange South Coast, city of Lake Forest, Aliso Creek, south side of Portola Parkway and west of El Toro Road 225 Comment
  RSA48860  Pluchea odorata J. C. Roos 1949-10-1 4684 Orange Doheney Beach. 3 Comment
  UCR208347  Pluchea odorata O. F. Clarke 2004-7-19 s.n. Orange South Coast, Newport Back Bay, along Back Bay Dr. 6 Comment
  RSA160418  Pluchea odorata J. D. Olmsted 1959-9-22 981 Orange Along Santa Ana River N of Sycamore Park along Hwy. 8-9mile WSW of Corona, betw Santa Ana Mts and Puente Hills to Pacific Ocean 137 Comment
  RSA930  Pluchea odorata J. T. Howell 1927-9-24 751 Orange Santa Ana River Bottom, Rancho Santa Ana 152 Comment
  RSA5323  Pluchea sericea B. D. Stark 1932-12-30 4472 Orange Rancho Santa Ana. River bottom below Mexican houses. 122 Comment
  SD237347  Pluchea sericea Dick Newell, Don Millar 2010-4-27 20 Orange Peninsular Range; Santa Ana Mtns. Foothills: Lomas de Santiago, Agua Chinon wash 1/4 mile north of Hwy 241 toll road. 226 Comment
  UC1070061  Pluchea sericea A. Lewis Mar 1934 333 Orange Santa Ana Canyon Corona Quad. 121 Comment
  UC520003  Pluchea sericea Joseph Andorfer Ewan 1932-7-9 7488 Orange 4 mi below Rincon; Santa Ana River Comment
  RSA932  Pluchea sericea J. T. Howell 1927-7-21 456 Orange Santa Ana River, Rancho Santa Ana. 152 Comment
  RSA91683  Poa howellii F. W. Peirson 1923-5-6 3491 Orange Trail to Santiago Peak from Holy Jim Canyon. 991 Comment
  RSA699158  Poa pratensis Rankin s.n. Orange Santa Ana. Comment
  SEINET3086485 Image available Polycarpon tetraphyllum J. Harry Lehr 1975-5-10 1556 Orange Santa Ana Street W. of State College Blvd. Anaheim. Comment
  UCR231203  Polygala cornuta subsp. fishiae A. C. Sanders, T. B. Salvato, Kent Beaman 2011-11-3 39941 Orange Peninsular Range; Santa Ana Mtns., near Pleasants Peak along the Main Divide Truck Trail 1143 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
  RSA588890  Polygala cornuta var. fishiae Fred M. Roberts 1990-6-4 4664 Orange Santa Ana Mountains: Hall Canyon, 1.8 km NNW Mustang Spring at east edge of Flying B Ranch. 421 Comment
  RSA791874  Polygala cornuta var. fishiae Robert F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49615 Orange Santa Ana Mountains: along Ortega Highway (74) about 2.5 miles above San Juan Fire Station, lateral ravine tributary to San Juan Canyon Comment
  UCR175446  Polygala cornuta var. fishiae Mark A. Elvin, A. C. Sanders 2005-9-2 4496 Orange Peninsular Ranges, Santa Ana Mtns: Mouth of Lion Canyon, just upstream from Lower San Juan Campground 457 Comment
  CAS-BOT-BC413753  Polygonum argyrocoleon Carl B. Wolf 1932-9-13 4038 Orange Bryant Ranch: North boundary between Flood Control dike & well in S.E.1/4 Sect. 25; about 1300 ft. W. of N.E. corner of S.E.1/4 Sect. 25 T4S R12W 6 Comment
  POM201772  Polygonum argyrocoleon L. M. Booth 1932-7-25 s.n. Orange Santa Ana River 2 miles from ocean. Comment
  UCSB48371  Polygonum aviculare Roberts, Fred 1982-5-22 Orange DANA POINT: jct. of Stone Hill and Selva Rds 1.0km ESE Dana Hills High School; 1.7km SW Marco Forster Junior High School 12 Comment
  CAS-BOT-BC414042  Polygonum aviculare subsp. aviculare Ira L. Wiggins 1965-11-7 20364 Orange Vacant lot on west side of State College Boulevard near Troy High School, Fullerton Comment
  RSA542466  Polygonum aviculare subsp. aviculare Fred M. Roberts 1987-3-31 3299 Orange Lomas de Santiago: Lomas Ridge, upper Serrano Canyon, east fork, reservoir, 2.7km SE Bolero Lookout. 350 Comment
  RSA5604  Polygonum aviculare subsp. aviculare Carl B. Wolf 1932-6-20 3755 Orange Common around the administration Blds, Rancho Santa Ana Botanic Garden. 198 Comment
  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
  UCR150563  Polygonum lapathifolium Scott D. White, Matt Carlton 2003-11-20 9869 Orange South Coastal Plain, Santa Ana Mtn foothills. San Juan Creek in San Juan Capistrano 24 Comment
  RSA0054922  Polygonum lapathifolium Keith E. Hoffmaster 1933-10-1 488 Orange Near Tustin. Comment
  HSC1110  Polypodium californicum J. W. Johnson 1961-4-2 Orange Newport Beach, on steep cliff along upper Newport Bay Comment
  IRVC3046  Polypodium californicum A. S. Boughey 1965-3-5 51 Orange Trabuco Canyon. Santa Ana Mountains Comment
  UCR99868  Polypodium californicum Scott D. White 1996-12-20 4629 Orange Santa Ana Mountains, above Modjeska Canyon; proposed water tank site 488 Comment
  IRVC21313  Polypodium californicum Fred M. Roberts 1983-12-13 1155 Orange Laguna Beach: west flank of Temple Hill, Park Canyon, Park Ave., 1.3km NE of Thurston School; 1.7km SE Bench Mark 104. Southern Coastal 195 Comment
  IRVC21428  Polypodium californicum A. S. Boughey 1969-3-18 s.n. Orange Ortega Highway; 2mi E of San Juan Guard Station. Southern Coastal Comment
  IRVC8601  Polypogon interruptus J. B. Anderson 1966-4-17 Orange Newport Beach: along roadside ditch in field NE of Newport Harbor High School. southern coastal Comment
  CAS-BOT-BC237267  Polypogon monspeliensis John Thomas Howell 1927-6-30 2621 Orange 7 miles E of Long Beach 15 Comment
  IRVC22900  Polypogon monspeliensis Fred M. Roberts 1985-6-12 1903 Orange Laguna Niguel: Alicia Pkwy, 2.1km by road SW La Paz Rd., 1.0km W Sulphur Creek Reservoir. Southern Coastal 67 Comment
  IRVC25048  Polypogon monspeliensis Fred M. Roberts 1986-8-21 3062 Orange Mission Viejo: English Canyon along English Creek just below Trabuco Road crossing, about 2.4km E El Toro Fire Station. southern coastal 166 Comment
  IRVC27750  Polypogon monspeliensis Mark A. Elvin 2004-5-2 3416 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7km (air) NNW UC Irvine campus center. Southern Coastal 3 Comment
  UCD91371  Polypogon monspeliensis Peter H. Raven 1957-9-28 11375 Orange north limits of Surfside. Comment
  UCR99548  Polypogon monspeliensis B. G. Pitzer 1996-4-30 2799 B Orange San Joaquin Hills, Crystal Cove State Park, south of City of Irvine on State Hwy 1 (Pacific Coast Hwy) 15 Comment
  SEINET10959318  Polypogon viridis LeRoy R. Abrams Abrams s.n. Orange Santa Ana River, Santa A. Comment
  IRVC25447  Polystichum imbricans subsp. curtum Fred M. Roberts, K. G. Marsh 1987-5-14 3439 Orange Santa Ana Mtns: Upper Trabuco Canyon, Trabuco Canyon Trail, 1.3km NE Los Pinos Peak. Peninsular Ranges 1231 Comment
  RSA725534  Populus Fred M. Roberts 2007-9-11 6570 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
  IRVC28638  Populus balsamifera subsp. trichocarpa Mark A. Elvin, A. C. Sanders 2005-9-2 4493 Orange Mouth of Lion Cyn, just up stream from Lower San Juan Campground. Santa Ana Mtns 457 Comment
  UCR113446  Populus balsamifera subsp. trichocarpa R. E. Riefner Jr., Adrian Wolf 2000-6-24 20- 116 Orange Peninsular Range, Santa Ana Mountains, North Ranch Policy Plan Area, Fremont Canyon, N. of Santiago Creek & immediately N. of major stream fork 305 Comment
  UCR171019  Populus balsamifera subsp. trichocarpa R. E. Riefner Jr. 2006-4-8 06- 111 Orange South Coast, San Juan Capistrano (city), San Juan Creek at La Novia Ave. 22 Comment
  RSA5327  Populus fremontii B. D. Stark 1932-12-30 4468 Orange Rancho Santa Ana. River bottom below Mexican houses. 122 Comment
  RSA735357  Populus fremontii Keith E. Hoffmaster 1934-4-8 156 Orange Santa Ana Mts. Comment
  RSA542355  Populus trichocarpa Fred M. Roberts Jr. 1987-5-12 3437 Orange Santa Ana River: Horseshoe Bend, 3.9km S San Juan Hill; 1.0km ENE Wier Canyon Road bridge. 104 Comment
  RSA788957  Populus trichocarpa Robert F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49562 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74). Comment
  CAS-BOT-BC356151  Porophyllum gracile John Thomas Howell 1929-3-2 4097 Orange In hills on n. side of Santa Ana Canon [Canyon], 1/2 mile east of Horseshoe Bend 152 Comment
  CLARK-A1528-2062  Porophyllum gracile John C. Roos 1937-5-10 2337 Orange San Juan Capistrano Comment
  RSA488122  Porophyllum gracile Karlin G. Marsh 1984-2-15 1188 Orange Santa Ana Mtns: Casper's Regional Park, Rancho Carrillo Road, 4.4km NE visitor Center, 0.5km ENE Lucas Survey Mark, alt 415m 415 Comment
  RSA588882  Porophyllum gracile Fred M. Roberts, D. Bontrager 1990-6-5 4673 Orange Rancho Mission Viejo: Uper Gabino Canyon, near Orange County line, 3.9 kilometers E Point Ranch Survey Marker. 280 Comment
  UCR149034  Porophyllum ruderale Ralph Guerrero 2000-10-24 PDR 1223098 Orange Coastal Plains and Basins; South Coastal Plains region, Along roadside of vegetable crop field, Seal Beach Naval Weapons Station, Seal Beach Comment
  CAS-BOT-BC445243  Portulaca oleracea Ira L. Wiggins 1965-11-3 20313 Orange East side of California State College campus, between State College Blvd and Placentia Avenue, Fullerton. Comment
  POM6394  Potamogeton nodosus L. T. Street, Williams 1919-5-4 2689 Orange Laguna Lakes. [now Big Laguna Lake, San Diego Co.] Comment
  UC217958  Potamogeton pectinatus P. A. Munz 1922-9-2 6348 Orange Laguna Canyon 45 Comment
  POM201867  Potentilla anserina var. grandis L. M. Booth 1932-6-28 1215 Orange Bolsas Marsh. Comment
  RSA797914  Potentilla glandulosa subsp. glandulosa Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49824 Orange Santa Ana Mountains: Trabuco Canyon. Comment
  IRVC20180  Prosopis velutina Karlin G. Marsh 1983-9-21 s.n. Orange San Juan Capistrano; brushy lateral draining into south-facing canyon, near top of ridge. Southern Coastal Comment
  UCR156568  Prosopis velutina Karlin G. Marsh 1983-9-21 s.n. Orange San Juan Capistrano 183 Comment
  LA208150  Prunus ilicifolia subsp. lyonii Donald Lee Johnson; 1965-1 sn Orange San Clemente Island, Reservoir Canyon Comment
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Jan 29 2015
  POM202175  Pseudognaphalium biolettii L. M. Booth 1932-5-19 1067 Orange Newport Bay Comment
  RSA696918  Pseudognaphalium biolettii Snow 1929-3-11 36 Orange W. of Orange Co. Park Comment
  SEINET9307949  Pseudognaphalium californicum Unknown 1996-5-11 19 Orange Newport Back Bay, 25 yrds in along bike path. Dry coastal mudflat dominated by Typha. Comment
  CHSC108408  Pseudognaphalium leucocephalum R. E. Riefner Jr. 2007-2-13 07 -55 Orange City of San Juan Capistrano, vicinity of La Novia Ave. and San Juan Creek. 31 Comment
  OBI74762  Pseudognaphalium leucocephalum Unknown 2007-2-13 Jul- 55 Orange City of San Juan Capistrano, vicinity of La Novia Ave. and San Juan Creek 31 Comment
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Dec 14 2012
  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
  UC537030  Pseudognaphalium stramineum Lawrence M. Booth 1932-7-19 1275 Orange Bolsas Marsh Comment
  RSA5343  Pseudotsuga macrocarpa B. D. Stark 1933-1-4 4493 Orange Bottom of Claymine Canyon. No. end of Santa Ana Mts. 305 Comment
  SD245373  Psoralea macrostachya Robert F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49564 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74). Along creek. Comment
  UC572669 Image available Ptelea crenulata W. G. Watkins 1937-2-1 5 Orange Santiago Canyon Comment
  RSA771718  Pteridium aquilinum Robert Allen, Richard S. Newell, Roger E. Reinke 2006-6-30 s.n. Orange Santa Ana Mts., Holy Jim Canyon Trail. About 1 mile up trail from forest gate. 609 Comment
  POM12169  Pteridium aquilinum var. pubescens P. A. Munz 1922-4-28 5041 Orange Leach Canyon, Santa Ana Mountains 670 Comment
  POM8763  Pterostegia drymarioides P. A. Munz, R. D. Harwood 1920-4-24 3746 Orange Santa Ana Mountains, Sierra [Freemont] Canyon 366 Comment
  RSA698489  Pterostegia drymarioides Minor Warne 1934-4-28 s.n. Orange Ladd Canyon-Santa Ana Mts. PR8. Comment
  RSA737547  Pterostegia drymarioides Fred M. Roberts 2008-3-12 6714 Orange Dana Point: Dana Point Headlands CNLM Preserve, western side, c.a. 0.8 km W Marine Institute (Dana Point Harbor). 50 Comment
  RSA38191  Pulicaria hispanica P. A. Munz 1946-10-2 11554 Orange Santa Ana River Canyon, Rancho Santa Ana 122 Comment
  RSA591808  Pulicaria hispanica P. H. Raven 1961-10-15 16847 Orange Anaheim: Santa Ana River Bed at Anaheim Street crossing. 61 Comment
  CDA7611  Pulicaria paludosa T. C. Fuller 1963-10-9 11362 Orange Santa Ana Canyon, 0.1 mile south of Riverside Freeway to Anaheim, ca. 2 miles west of the Riverside County line. 0 Comment
  OBI59561  Pulicaria paludosa T. C. Fuller 1963-10-9 11362 Orange Santa Ana cyn, 0.1 mi S of riverside fwy to Anaheim, ca 2 mi W of the Riverside Co. line Comment
  RSA708450  Pulicaria paludosa Mark A. Elvin 2003-8-24 3013 Orange Southern coastal: San Jaquin Hills, Irvine, UCI, 100m N of the intersection of Shady Canyon Drive and Bonita Canyon Road. 72 Comment
  RSA725473  Pulicaria paludosa Fred M. Roberts, Megan Lulow 2007-7-30 6545 Orange Fremont Canyon, 1.3 km NE Irvine Lake spillway, North Irvine Ranch Policy Area. 253 Comment
  UCR130487  Pulicaria paludosa R. E. Riefner Jr. 2002-5-4 02- 93 Orange South Coast, Upper Newport Bay, Jamboree Road at Bayview Dr., edge of Newport Beach Q. 21 Comment
  UCR151234  Pulicaria paludosa Steve Boyd, R. E. Riefner 2000-9-13 10307 Orange Peninsular Ranges; Santa Ana Mts region, Santa Ana Mountains: Fremont Canyon, about 1.5 air miles west of Oat (a.k.a. Oak) Flat and 1.5 miles southeast of Claymont clay mine. 427 Comment
  UCR193770  Pulicaria paludosa A. C. Sanders, Fred M. Roberts 2008-7-3 35710 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along Weir Canyon Rd. 1.2 mi. SSE of Walnut Canyon Reservoir, below Upper Blind Canyon Rd. 212 Comment
  UCR95587  Pulicaria paludosa P. H. Raven 1961-10-15 16857 Orange Dike along road to Yorba Linda, just north of US Hwy 91 114 Comment
  POM18141  Pycnanthemum californicum P. A. Munz 1923-9-7 7757 Orange Trail Trabuco Canyon to Santago Peak 915 Comment
  UC1597259  Quercus Fred M. Roberts Jr. and Carol A. Roberts 1989-4-7 4264 Orange 0.4 km w West Moulton Peak; Aliso-Wood Canyon Regional Park, Upper Wood Canyon 104 Comment
  RSA12362  Quercus X grandidentata E. R. Johnson 1934-1-6 5562 Orange Santa Ana Mts., on slopes of Sierra Peak at about the head of Claymine Canyon. 762 Comment
  UCR174210  Quercus agrifolia A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33044 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
  IRVC22517  Quercus agrifolia var. agrifolia Fred M. Roberts 1985-4-30 1677 Orange Laguna Beach: Temple Hill; at margin of "Dripping Springs Canyon"; 0.4km NNE Top of the World School. Southern Coastal 255 Comment
  UCSB48077  Quercus agrifolia var. agrifolia Roberts, Fred 1981-4-11 Orange Santa Ana Mtns., San Juan Canyon, Hwy 74, 2.7km ENE San Juan Guard Station 96 Comment
  UCSC009093  Quercus agrifolia var. agrifolia Al Keuter 2015-3-25 10- 17 -3 Orange SR 133 near Laguna Beach 46 Comment
  IRVC24548  Quercus berberidifolia Fred M. Roberts, R. L. Allen 1985-8-19 2133 Orange Mission Viejo: lateral to Engilish Canyon along Vista de Lago Drive; 3.4km ENE El Toro Fire Station. Southern Coastal 218 Comment
  IRVC24549  Quercus berberidifolia Fred M. Roberts, K. Kahn 1988-5-26 4012 Orange Rancho Mission Viejo: Hill above and N of confluence of Gabino and Christianitos canyons. Southern Coastal 157 Comment
  RSA17561  Quercus berberidifolia E. R. Johnson 1936-4-10 7767 Orange Santa Ana Canyon, Rancho Santa Ana, toward the head of box canyon to the north of the pear orchard. 168 Comment
  RSA588843  Quercus berberidifolia Fred M. Roberts 1989-11-7 4454 Orange Rancho Mission Viejo: TRW Lease Holding, ridge south of the confluence of Gabino and Blind Canyons, 5.0 km NE Clement Survey Market. 155 Comment
  RSA588844  Quercus berberidifolia Fred M. Roberts 1989-11-7 4453 Orange Rancho Mission Viejo: TRW Lease Holding, ridge south of the confluence of Gabino and Blind Canyons, 5.0 km NE Clement Survey Market. 155 Comment
  RSA7576  Quercus berberidifolia E. R. Johnson 1933-11 5559 Orange Rancho Santa Ana. Comment
  UCD166560  Quercus berberidifolia Dylan O. Burge 2016-2-23 2089 Orange Santa Ana Mountains, vicinity of Blue Jay Campgroundm along spur off of Long Canyon Road. 1060 Comment
  UCR241911  Quercus berberidifolia Fred M. Roberts 2012-5-10 7561 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
  RSA763061  Quercus chrysolepis E. W. Lathrop 1968-5-22 6931 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon. 396 Comment
  UC1135416  Quercus chrysolepis A. Lewis May 1934 416 Orange Trabuco Canyon Cleveland National Forest, Elsinore Quad. 1371 Comment
  RSA659896  Quercus cornelius-mulleri Karl Price 1988-4-29 15 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
  RSA584719  Quercus dumosa Fred M. Roberts, Wade 1989-6-21 4391 Orange San Joaquin Hills; Los Trancos Canyon, 1km E summit of Pelican Hill. 98 Comment
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Oct 16 2013
  UCSB52409  Quercus dumosa Roberts, Fred 1982-7-1 Orange South Laguna; Niguel Hill, at end of Sea Island Dr., 1.9 km. SE Aliso Peak 210 Comment
  RSA542389  Quercus engelmannii Richard Ericson 1991-6-11 s.n. Orange San Joaquin Hills: upper Coyote Canyon on north signal peak, ca. 0.6 km NW summit, UTM 37 19 000m N, 4 24 200m E alt. 204m 204 Comment
  UCR177695  Quercus engelmannii Fred M. Roberts 2003-5-1 5685 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
  IRVC16580  Quercus kelloggii Gordon A. Marsh, Karlin G. Marsh 1976-12-15 s.n. Orange Santa Ana Mtns: Silverado Truck Trail, 0.2 mi. N of Main Divide jctn. Peninsular Ranges Comment
  UC5679  Quercus wislizeni W. H. Brewer Jan 1861 137 Orange Santa Ana Mountains 914 Comment
  IRVC25113  Quercus wislizeni var. frutescens Fred M. Roberts, Gordon A. Marsh 1986-8-27 3093 Orange Santiago Peak; 0.2km SSW summit Santa Ana Mountains 1695 Comment
  RSA12847  Quercus wislizeni var. frutescens Carl B. Wolf 1933-11-8 5539 Orange NW side of Trabuco Peak, Santa Ana Mts. 1311 Comment
  RSA644971  Quercus wislizeni var. frutescens R. E. Riefner Jr. 2000-4-13 2 -361 Orange NCCP North Ranch Policy Plan Area. Upper drainage of Fremont Canyon near National Forest boundary, S. of Claymore Mine. USGS 7.5' Quad: Black Star Canyon. 610 Comment
  UCR144740  Quercus wislizeni var. frutescens Gordon Marsh, Karlin G. Marsh 1985-9-27 s.n. Orange Santa Ana Mtns., Pine Canyon, 4.1 km NW of Modjeska Peak 805 Comment
  RSA598966  Rafinesquia californica Scott D. White 1997-3-28 4838 Orange Santa Ana Mountains: above Modjeska Canyon, proposed water tank site. 427 Comment
  RSA749300  Rafinesquia californica Fred M. Roberts 1999-4-21 5180 Orange Lomas de Santiago: Loma Ridge, ridges north of Dripping Springs Cyn., 1.5 km W Silverado Sch. and 4.8 km NNW Bolero Lookout. 365 Comment
  UCR194559  Ranunculus A. C. Sanders, Fred M. Roberts 2008-4-8 34765 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
  POM303771  Ranunculus californicus Lyman Benson 1947-4-27 12338 Orange Carbon Canyon. Chino-Puente Hills; Pacific Slope Drainage Area. 244 Comment
  POM6265  Ranunculus hebecarpus P. A. Munz, L. T. Street, G. Williams 1919-5-3 2630 Orange Santa Ana River Canyon. Comment
  RSA542415  Ranunculus hebecarpus Fred M. Roberts, Karlin G. Marsh 1987-5-14 3447 Orange Upper Trabuco Canyon, Trabuco Canyon Trail, 2 km NNW Los Pinos Peak 856 Comment
  IRVC1148  Raphanus sativus R. Hobson 1965-4-10 Orange Santa Ana Heights, 2431 Mesa Dr. Southern Coastal Comment
  IRVC1161  Raphanus sativus L. Stilgenbauer 1965-4-10 Orange Corona del Mar, 339 Milford Dr.; in canyon. Newport Beach Comment
  UCSB41794  Raphanus sativus MacKay, Shelley 1971-5-11 Orange 0.1 mile west of Bloomfield Avenue, Cypress 30 Comment
  CDA3881  Reseda alba Johnson 1939-4-1 Orange Los Angeles - Garden Grove. 0 Comment
  UC1121827  Rhamnus crocea A. Lewis Apr 1934 400 Orange near Arch Beach; Corona Quad. 182 Comment
  CAS-BOT-BC56034  Rhamnus ilicifolia C. B. Wolf; E. R. Johnson 1933-11-3 5531 Orange Santa Ana Mts., Silverado Canyon, base of Silverado Motorway 731 Comment
  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
  JEPS42046  Rhamnus ilicifolia John Thomas Howell 1927-7-22 2824 Orange Claymine Canyon Santa Ana Mts. 182 Comment
  RSA1696  Rhamnus ilicifolia Carl B. Wolf 1931-3-6 1841 Orange Trabuco canyon, 1/2 mile above Trabuco Oaks, west slope of Santa Ana Mountains. 457 Comment
  UC1121877  Rhamnus ilicifolia A. Lewis Mar 1934 338 Orange Santa Ana Canyon Corona Quad. 152 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
  UC484250  Rhus C. B. Wolf 1931-3-6 Orange 1 1/2 mi below Trabuco Camp grounds (Trabuco Canyon, w slope Santa Ana Mountains); Santa Ana Mountains 548 Comment
  CLARK-A1528-115  Rhus integrifolia Ruth Cooper 1968-2-11 Orange San Joaquin Hills Comment
  IRVC15661  Rhus integrifolia A. S. Boughey, P. Pembrook 1965-7-16 1011 Orange Los Trancos Canyon, near spring, ; chaparral. San Joaquin Hills Comment
  IRVC28778  Rhus integrifolia Barry S. Nerhus 2006-2-4 2 Orange San Joaquin Marsh; NW Edge of Marsh. Southern Coastal 3 Comment
  RSA751419  Rhus integrifolia A. C. Sanders, Fred M. Roberts 2008-7-3 35693 Orange Weir Canyon, along Windy Ridge Rd. at hairpin turn/road junction below huge sandstone boulder (visible on Google Earth), 1.2 mi. SE of Walnut Canyon Reservoir 275 Comment
  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
  UCR106757  Rhus integrifolia B. G. Pitzer, M. Georgiady 1997-4-5 3081 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
  UCR131883  Rhus laurina J. Mallory, V. McCoy 1995-7-3 6454- 83 Orange Santa Ana Mountains: N-facing slope in Santiago Canyon, c. 0.5 mi. east of Santiago Canyon Rd; near Irvine Park 200 Comment
  RSA0054853  Rhus laurina Grace Adams 1938-5-28 s.n. Orange Santiago Creek. Comment
  CAS-BOT-BC167929  Rhus ovata B. Pitzer; S. Hemstreet 1992-5-27 1960 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
  CAS-BOT-BC167931  Rhus ovata C. B. Wolf 1931-3-6 1857 Orange 1 1/2 miles below Trabuco Camp Ground, Trabuco Canyon, west slope Santa Ana Mts. 548 Comment
  LA62870  Rhus ovata C. B. Wolf; 1931-3-6 1857 Orange Santa Ana Mountains, Trabuco Canyon, 1.5 mi. below Trabuco Camp Ground Comment
  RSA184094  Rhus ovata I. L. Wiggins 1966-3-22 20551 Orange Hillside at end of pavement, Silverado Canyon, about 5 mi. above Ranger Station, Cleveland National Forest. Comment
  RSA696221  Rhus ovata Keith E. Hoffmaster 1936-5-3 s.n. Orange Santa Ana Mts (Santiago Peak) Comment
  CAS-BOT-BC93072  Ribes californicum var. hesperium Carl B. Wolf 1930-1-30 1824 Orange Claymine Canyon, Santa Ana Mountains. 457 Comment
  CAS-BOT-BC93108  Ribes californicum var. hesperium Ira L. Wiggins 1966-2-4 20409 Orange Trabuco Canyon, about 2 miles above entrance. Comment
  UCD169740  Ribes californicum var. hesperium R. F. Thorne; C. W. Tilforth, E. W. Lathrop 1977-4-27 49693 Orange Northern Santa Ana Mountains: Sierra Peak. 899 Comment
  RSA698891  Ribes hesperium Tozier, Estes 1950-1-30 s.n. Orange Silverado. Comment
  CAS-BOT-BC173127  Ribes indecorum C. B. Wolf 1931-3-6 1833 Orange 1 1/2 miles below Trabuco Oaks along Trabuco Canyon road, west slope Santa Ana Mts. 304 Comment
  RSA162689  Ribes indecorum J. D. Olmsted 1960-1-9 1093 Orange Hidden Ranch at Old Indian Campground, Santa Ana Mts. Black Star Creek. 640 Comment
  RSA5409  Ribes indecorum Carl B. Wolf 1932-12-19 4440 Orange Main divide of Santa Ana Mts. between Sierra Peak and Skyline Drive. 762 Comment
  CAS-BOT-BC402201  Ribes malvaceum R. F. Thorne; C. W. Tilforth; E. W. Lathrop 1977-4-27 49706 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  RSA441490  Ribes malvaceum var. viridifolium Anstruther Davidson 1977-5-18 5623 Orange Santa Ana Mts, Cleveland National Forest, Bear Springs. 1220 Comment
  RSA663160  Ribes malvaceum var. viridifolium R. E. Riefner Jr. 2000-3-18 20 -133 Orange Cleveland National Forest. Ridge-top E of Fremont Canyon and W of Hidden Valley. eastern part of Section 24. 732 Comment
  RSA84499  Ribes malvaceum var. viridifolium F. W. Peirson 1923-4-6 3504 Orange Santiago Peak, Santa Ana Mts. Holy Jim trail. 1143 Comment
  UCR190972  Ribes malvaceum var. viridifolium A. C. Sanders, Fred M. Roberts 2008-4-22 35037 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Limestone Canyon, c. 2 miles SW of Silverado 396 Comment
  UCSB47637  Ribes malvaceum var. viridifolium Roberts, Fred 1980-5-3 Orange Main Divide Truck Trail; 0.2km west of Trabuco Peak; Santa Ana Mtns 1347 Comment
  PASA2267  Ribes roezlii Frank W. Peirson 1923-5-6 Orange Santiago Peak 1645 Comment
  CAS-BOT-BC173736  Ribes speciosum Marcus E. Jones 1931-3-23 28326 Orange Laguna Comment
  POM6387  Ribes speciosum P. A. Munz, L. T. Street 1919-5-3 2664 Orange Santa Ana River Canyon. Comment
  RSA13078  Ribes speciosum Carl B. Wolf 1935-8-1 7562 Orange Claymine Canyon, 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
  RSA734161  Ribes speciosum Keith E. Hoffmaster 1931-4-22 520 Orange Santa Ana Mts. Comment
  IRVC9188  Ricinus communis R. Yarnell 1966-3-4 53 Orange hills near jct. of Newport Blvd. and Riverside Hwy [Fwy?], Anaheim? Comment
  POM2748  Ricinus communis M. Harbour 1915-3-28 s.n Orange Orange. Comment
  RSA652397  Ricinus communis L. M. Anderson 1948-2-17 s.n. Orange Roadside plant on east Fairhaven Ave., 4 mi. e. of Santa Ana. 76 Comment
  RSA2097  Romneya coulteri B. D. Stark 1931-5-18 2054 Orange Santa Ana River bottom, SW of Ranch Houses, Rancho Santa Ana. 122 Comment
  UC1018189  Romneya coulteri J. Warren 1952-5-23 Orange Santa Ana Canon 457 Comment
  UC1090422  Romneya coulteri Milo S. Baker 1958-5-15 13266 Orange on road to City Creek Comment
  UCR247896  Romneya coulteri Fred M. Roberts 2013-6-12 7799 Orange Peninsular Ranges, SANTA ANA MTNS.: Lower Silverado Canyon along Silverado Creek on north side of Silverado Canyon Road, 0.9 km ENE Silverado School and 1.7 km up stream Black Star Road crossing. 332 Comment
  SEINET7881036 Image available Romneya coulteri F. R. Fosberg 1931-1 S 5094 Orange Lower Santiago 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
  UCR193320  Rorippa nasturtium-aquaticum A. C. Sanders, T. B. Salvato 2008-5-13 35375 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
  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
  CAS-BOT-BC147386  Rosa californica I. M. Johnston 1918-9-3 2140 Orange Laguna [Canon] Canyon, San Joaquin Hills 76 Comment
  RSA375  Rosa californica J. T. Howell 1927-6-6 s.n. Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  RSA699220  Rosa californica W. Blanchard 1932-5-15 s.n. Orange Trabuco canyon Comment
  RSA734658  Rosa californica A. C. Sanders, Fred M. Roberts, A. O'Neal, D. E. Bramlet 2008-5-9 35294 Orange Weir Canyon, c. 1.1 mi. E of Walnut Cyn Reservoir. 277 Comment
  RSA652643  Rubus ursinus Matt Bogdanoff 1981-4-11 3 Orange Calif. Hwy 142, 2.5 miles (?) west of Sleepy Hollow. [Carbon Canyon Road, N of Yorba Linda] 183 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
  UCSB52860  Rubus ursinus Roberts, Fred; Marsh, K. 1984-4-21 Orange Santa Ana Mtns.: Lost Women Canyon, 2.3km WSW Bald Peak; 2.3km SE Bedford Peak 222 Comment
  UCSB48004  Rumex californicus Roberts, Fred 1980-7-11 Orange SANTA ANA MTNS.: Viejo Canyon, 3.0km ENE San Juan Guard Station; 0.7km N Hwy 74 355 Comment
  POM306304  Rumex conglomeratus Henry J. Ramsey, Henry J. Ramsey 1938-6-5 1392 Orange Laguna Beach, Irvine Comment
  RSA734631  Rumex conglomeratus A. C. Sanders, T. B. Salvato 2008-5-13 35362 Orange Lomas de Santiago, Santiago Canyon above (S of) mouth of Hangman Tree Canyon, just below Modjeska Canyon confluence 366 Comment
  UCR193497  Rumex conglomeratus A. C. Sanders, T. B. Salvato 2008-5-13 35362 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Canyon above (S of) mouth of Hangman Tree Canyon, just below Modjeska Canyon confluence 366 Comment
  CAS-BOT-BC421600  Rumex crispus Scott D. White 1997-3-26 4811 Orange Univ. of Calif. Irvine Campus: Site of proposed student recreation center, east of main campus. Existing Farm School and adjacent grasslands (horse pasture) between California Ave. and Culver Dr. 30 Comment
  CAS-BOT-BC421599  Rumex crispus C. L. Hitchcock; C. V. Muhlick 1964-3-17 23072 Orange 8 miles e. of Yorba Linda, Santa Ana Canyon Comment
  RSA749313  Rumex hymenosepalus Fred M. Roberts 2008-3-21 6790 Orange Santa Ana Mtns.: Central Weir Cyn. along Upper Weir Cyn. Rd., 1.3 km ESE Robbers Peak, about 2 km above canyon mouth. 224 Comment
  UCR107444  Rumex maritimus B. G. Pitzer, M. Georgiady 1997-4-5 3084 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
  RSA203  Rumex salicifolius J. T. Howell 1927-7-15 269 Orange Santa Ana River, Rancho Santa Ana [Botanic Garden] 152 Comment
  UCR173934  Rumex salicifolius A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33054 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
  UCR241051  Rumex salicifolius var. denticulatus Robert DeRuff 2012-9-27 550 A Orange South Coast, Upper Newport Bay, upper end of Big Canyon near Jamboree Rd. 14 Comment
  CHSC26520  Ruppia maritima James Henrickson 1970-7-24 5023 Orange 3 miles NW of Huntington Beach; in Inner Bolsa Bay. 0 Comment
  RSA383650  Ruppia maritima V. Newsom 1932-7-4 16946 Orange Laguna - Aliso canyon, Orange County Comment
  RSA317355  Ruppia maritima James R. Shevock 1974-5-3 3453 Orange Newport Back bay along Back Bay Drive Comment
  RSA728661  Sagina saginoides R. E. Riefner 2003-2-22 03 -124 Orange City of Laguna Beach, Moulton Meadows Park, near Balboa Ave., and Del Mar Ave. Mima Mound Terrain habitat. 261 Comment
  SFV20026  Salicornia pacifica A. Dittmer, S. Dark 2004-10-3 74 Orange Bolsa Chica wetlands. South side of public parking lot off Highway 1. Comment
  RSA0059640  Salicornia pacifica L. C. Wheeler 1933-10-21 2222 Orange Newport Bay. 3 Comment
  UCSB48045  Salicornia pacifica Roberts, Jr., Fred 1981-6-26 Orange Anaheim Bay; Calif. Rte. 1 at southern margin of Naval Weapons Station, 1.7 km. SE McGaugh School; 1.1 km. W Hog Island Comment
  UCR112761  Salicornia subterminalis A. C. Sanders, D. Malueg, K. D. Jones 2000-4-19 23340 Orange Pacific Coast, Bolsa Chica Lagoon, along dirt roads in oil field, east of Hwy 1, east of Bolsa Chica St. 11 Comment
  POM201915  Salicornia virginica L. M. Booth 1932-8-5 1357 Orange Bolsas Marsh. Comment
  RSA357005  Salicornia virginica R. F. Thorne 1975-4-6 45568 Orange San Joaquin Marsh: Near Irvine and coast. Comment
  RSA70036  Salicornia virginica F. W. Peirson 1924-8-29 5069 Orange roadside 4 miles south of Santa Ana. Comment
  UCR108429  Salicornia virginica L. C. Wheeler 1946-9-28 6384 Orange Newport Bay, Newport Bay 5 Comment
  RSA698842  Salix argophylla Unspecified s.n. Orange Arch beach Comment
  JEPS38488  Salix exigua Alice King Apr. 1908 Orange near Santa Ana; Santa Ana River Comment
  SJSU190  Salix exigua C. B. Wolf 1932-7-7 3845 Orange Rancho Santa Ana on Bixby Ave, 1 km W of Hansen Rd near Los Alamitos 7 Comment
  LA208639  Salix exigua var. hindsiana Carl B. Wolf; 1932-4-15 2954 Orange Santa Ana Canyon, Rancho Santa Ana, near Santa Ana River, S of pear orchard, in Botanic Garden 120.0 Comment
  LA208643  Salix exigua var. hindsiana Carl B. Wolf; 1932-4-15 2953 Orange Santa Ana Canyon, Rancho Santa Ana, near Santa Ana River, S of pear orchard, in Botanic Garden 120.0 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-BC108140  Salix gooddingii H. D. Geis 1902-5-1 s.n. Orange Near Santa Ana Comment
  POM182034  Salix gooddingii Carl B. Wolf 1932-4-15 2955 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Canyon. 120 Comment
  RSA138  Salix gooddingii J. T. Howell 1927-6-6 40 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  RSA587881  Salix gooddingii Fred M. Roberts 1990-5-8 4618 Orange Chino Hills: Soquel Canyon, c.a. 1.2 km NNW Gilman Peak. Comment
  RSA701692  Salix gooddingii Fred M. Roberts, David E. Bramlet 2003-6-6 5895 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, west slopes of Cristianitos Canyon, 0.86 km SSW Gato Gate and 0.39 km W of Cristianitos Road. Comment
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Mar 11 2015
  RSA731955  Salix gooddingii Fred M. Roberts 2007-12-12 6702 Orange Santa Ana Canyon: Santa Ana River, south of Green River Golf course on south side of river, 0.4km E Coal Cyn. Rd. and 0.7km W Riverside Co. line. 129 Comment
  SEINET13212664 Image available Salix gooddingii Unknown 1903-1 3256 /1227 Orange Santa Ana River near Orange, S. California. Comment
  PASA2678  Salix hindsiana var. leucodendroides Carl B. Wolf 1932-7-7 3843 Orange Rancho Santa Ana, along ditch on Bixby Ave., 1 km. west of Hansen Rd., near town of Los Alamitos. 7.5 Comment
  RSA0034661  Salix hindsiana var. leucodendroides Carl B. Wolf 1932-4-15 2954 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Canyon. 120 Comment
  RSA0038293  Salix hindsiana var. leucodendroides Carl B. Wolf 1932-7-7 3843 Orange Rancho Santa Ana, along ditch on Bixby Ave., 1 km. west of Hansen Road, near town of Los Alamitos. 7 Comment
  RSA0038363  Salix hindsiana var. leucodendroides Carl B. Wolf 1932-4-15 2953 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Canyon. 120 Comment
  RSA539364  Salix laevigata Fred M. Roberts Jr., Carol A. Roberts 1988-7-5 4107 Orange San Juan Canyon, 0.4 km SW Lower San Juan Picnic Ground. 410 Comment
  RSA735352  Salix laevigata R. H. McArthur 1934-2-10 s.n. Orange Santiago Canyon above Modjeska Comment
  RSA749045  Salix laevigata A. C. Sanders, Fred M. Roberts 2008-8-7 35984 Orange lower Weir Canyon, at narrow gorge c. 0.6 mi. above mouth of cyn at Irvine Ranch gate. 185 Comment
  RSA801981  Salix laevigata Minor Warne 1934-2-28 s.n. Orange Bed of Santa Ana River Comment
  UC506452  Salix laevigata Carl Hedin and Joseph Ewan 1932-7-9 7685 Orange 8 mi. below Prado (Rincon) (Santa Ana R.); Santa Ana R. Comment
  UCR174189  Salix laevigata A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33015 Orange Peninsular Range; Santa Ana Mtns., San Juan Canyon, from Lower San Juan Picnic Area to c. 1 mile downstream, parallel to Hwy 74 and near Riverside Co. line 396 Comment
  UCR239909  Salix laevigata O. F. Clarke 2004-3-22 s.n. Orange Santa Ana River Canyon, Santa Ana River on the west side of Featherly Park 110 Comment
  UCR241039  Salix laevigata Robert DeRuff 2011-1 576 Orange South Coast, Upper Newport Bay, Fish and Game headquarters at Shellmaker 4 Comment
  RSA357006  Salix lasiolepis Robert F. Thorne 1975-4-6 45569 Orange San Joaquin Marsh: Near Irvine and coast. Comment
  UCR26634  Salix lasiolepis E. W. Lathrop 1966-3-23 6101 Orange Santa Ana Mtns, Cleveland National Forest, Trabuco District. 4 mi. NE of Lake Irvine, Black Star Canyon Comment
  UCSB47979  Salix lasiolepis Roberts, Fred 1980-2-17 Orange Along Camino Capstrano road, 1.0 km south of Avary Parkway, southern Mission Viejo 48 Comment
  UCR179757  Salix lucida subsp. lasiandra R. E. Riefner Jr. 2006-10-4 06- 475 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lake Forest, Aliso Creek near Portola Parkway at El Toro Rd. 225 Comment
  CAS-BOT-BC126306  Salix sessilifolia Carl B. Wolf 1932-7-7 3843 Orange Rancho Santa Ana, along ditch on Bixby Ave., 1 km. west of Hansen Road, near town of Los Alamitos 7 Comment
  RSA39330  Salpichroa origanifolia E. L. Paddock 1943-5-19 12747 Orange 1 mile east of Brea. Comment
  UCR258620  Salsola australis Fred M. Roberts 2014-7-25 7889 Orange South Coast, SAN JOAQUIN HILLS: Laguna Lake 1 (Upper Laguna Lake), south basin 113 Comment
  CDA3181  Salsola australis R. E. Riefner Jr. 2006-11-14 06 -672 Orange City of Irvine, San Diego Creek; vicinity of Campus Avenue at University Drive. Comment
  RSA542479  Salvia apiana Fred M. Roberts 1988-5-13 3972 Orange Lomas de Santiago: Loma Ridge, Upper Limestone Canyon near spring, 2.3 km NW Bolero Lookout. 439 Comment
  RSA751323  Salvia apiana A. C. Sanders, Fred M. Roberts, Amber O Neal 2008-5-9 35292 Orange Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir. 300 Comment
  UCR131891  Salvia apiana J. Mallory, V. McCoy 1995-7-3 6454- 67 Orange Santa Ana Mountains: N-facing slope in Santiago Canyon, c. 0.5 mi. east of Santiago Canyon Rd; near Irvine Park 200 Comment
  RSA542481  Salvia columbariae Fred M. Roberts 1988-3-15 3873 Orange Rancho Mission Viejo: Central Gabio Canyon, 7.0 km E Playa Survey Marker. 162 Comment
  CAS-BOT-BC233670  Salvia leucophylla C. B. Wolf 1943-6-8 11449 Orange Rancho Santa Ana Botanic Garden 198 Comment
  RSA1566  Salvia leucophylla J. T. Howell 1928-7-10 1095 Orange Black Star Canyon, Santa Ana Mts. 457 Comment
  RSA257047  Salvia leucophylla W. Pequegnat 1940-5-26 s.n. Orange Black Star Canyon, Santa Ana Mts. 610 Comment
  UCR131875  Salvia leucophylla J. Mallory, V. McCoy 1995-7-3 6465- 102 Orange Santa Ana Mountains: Blind Canyon, c. 0.5 mi. east of confluence with Santiago Canyon, on a W-facing slope. north of Irvine Lake 300 Comment
  CAS-BOT-BC94727  Salvia mellifera R. C. Wenk; P. Hopkinson; M. Hammond; P. Brownsey 2008-3-24 721 Orange Chino Hills State Park. South Ridge Road W of San Juan Hill, going W from Equestrian Staging Area. Top of ridge 1450 Comment
  HSC14367  Salvia mellifera T. L. Ackerman 1964-3-28 10 Orange Irvine Park Dr. inside Irvine Park Comment
  RSA550593  Salvia mellifera Fred M. Roberts 1989-4-26 4321 Orange Santa Ana Mtns.: Lower Blind Canyon near mouth, 9.2km SW Sierra Peak, 1.0km N Irvine Lake spillway. 213 Comment
  UCR106293  Salvia mellifera B. G. Pitzer, M. Georgiady 1997-4-5 3064 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
  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
  UCR252217  Salvia mellifera Amanda C. Swanson 2013-4-21 22 Orange Peninsular Range; Santa Ana Mtns., hiking trail across from Tucker Wildlife Sanctuary, less than 0.1 mi. from trailhead 434 Comment
  RSA0043352  Sambucus mexicana David Barrios 1991-5-8 26 Orange 1500 ft. northwest of Fairmont Ave and Quail Cir., Yorba Linda. 365 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
  UCR193031  Sambucus mexicana A. C. Sanders, Fred M. Roberts 2008-6-17 35517 Orange Peninsular Range; Santa Ana Mtns., middle section of Weir Canyon, SSE of Walnut Canyon Reservoir 225 Comment
  UCR209664  Sambucus nigra Fred M. Roberts 2008-5-8 6944 Orange South Coast, Dana Point Headlands, Center for Natural Lands Mgmt. Preserve near Strands Road Gate, 0.8 km west-northwest of the Marine Institute, Dana Point Harbor 65 Comment
  UCSB69268  Sambucus nigra subsp. caerulea Sanders, A.; Roberts, Fred 2008-7-3 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 (Black Star Canyon 7.5 ' Q.) 285 Comment
  RSA48925  Sanicula arguta P. A. Munz 1949-5-26 13378 Orange Head of Sierra [Freemont] Canyon, Santa Ana Mountains. 732 Comment
  UCR209331  Sanicula arguta Fred M. Roberts 2009-4-11 6888 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
  UCR209361  Sanicula arguta Fred M. Roberts, D. E. Bramlet 2008-4-1 6837 Orange Lomas de Santiago, Loma Ridge, East Lomas Ridge Road along crest, 3.2 km northwest of Bee Peak and 3.4 km northeast of Rattlesnake Reservoir Dam, Irvine Ranch Conservancy 388 Comment
  RSA590944  Sanicula arguta Fred M. Roberts 1991-5-2 4783 Orange San Joaqui Hills, Laguna Canyon, Laguna Laurel, Just W of Laguna Canyon Road, 2km N jct El Toro Road, 4.5km E Signal Peak. 110 Comment
  RSA542436  Sanicula bipinnata Fred M. Roberts 1988-3-15 3853 Orange Rancho Mission Viejo: Verdugo Canyon, 2.6 km ENE Point Rancho Survey Mark 149 Comment
  UCR191777  Sanicula bipinnatifida A. C. Sanders, Fred M. Roberts 2008-3-25 34569 Orange Peninsular Range; Santa Ana Mtns., saddle on ridge near head of Weir Canyon, 5.3 miles ENE of Villa Park, 3.1 mi. N of (Santiago Reservoir) Irvine Lake 405 Comment
  UCR150912  Sanicula tuberosa Valerie Soza, LeRoy Gross 1999-6-10 511 Orange Santa Ana Mountains, Southwestern extension of Modjeska Peak, off dirt road to summit, off Main Divide Road 1524 Comment
  UCR56327  Scandix pecten-veneris Kathy Harper 1989-4-8 s.n. Orange Ronald W. Caspers Wilderness Area, along Bell Canyon Trail. 153 Comment
  RSA725514  Schinus molle Fred M. Roberts, Robert L. Allen 2007-9-28 6616 Orange Lomas de Santiago: above lower Santiago Cyn. wash along Santiago Cyn. Rd. just south of Irvine Mesa, 3.3 km N Bolero Lookout. 332 Comment
  RSA0036019  Schinus molle Robert F. Thorne 1977-11-21 50808 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs Comment
  RSA650236  Schinus molle Norman Willis 1948-2-8 s.n. Orange Santiago Creek Bed near Orange' 60 Comment
  RSA649321  Schinus terebinthifolius Trudy R. Ericson 1976-4-1 22 Orange Along South Campus Drive, north of greenhouse enclosure, Campus, Califonia State University, Fullerton. 68 Comment
  SD133207  Schinus terebinthifolius A. C. Sanders 1990-10-6 10201 Orange Newport Bay, North Star County Beach area on the SW end of the bay, ca. 2 km inland of Hwy 1 Comment
  UCR217463  Schinus terebinthifolius Mark A. Elvin 2003-2-23 2310 Orange South Coast, Irvine, San Joaquin Marsh along the berm of San Diego Creek 3 Comment
  CAS-BOT-BC243419  Schismus barbatus Ira L. Wiggins 1966-2-18 20448 Orange Roadside 1/2 mi. W of entrance to Rancho Santa Ana, near end Orange County road at end of Orangethorpe Avenue Comment
  IRVC20382  Schismus barbatus Fred M. Roberts 1983-3-16 910 Orange Laguna Beach: Sycamore Hills, central ridge, 1.1km NNE jct. El Toro and Laguna Canyon Rds.; 5.4km [ESE] Signal Peak. Southern Coastal 156 Comment
  RSA773561  Schismus barbatus Fred M. Roberts 1999-5-14 5217 Orange Peninsular Ranges; Santa Ana Mts.: Lomas de Santiago, Loma Ridge; Upper Limestone Canyon on slopes above Bolero Spring, 2.4 km NNW Bolero Lookout 451 Comment
  RSA0059074  Schoenoplectus americanus CNPS Accuracy Assessment Team 2014-7-9 9308 Orange Upper Newport Bay Nature Reserve. Comment
  POM1385  Schoenoplectus californicus D. L. Crawford 1916-8-2 736 Orange Laguna Canyon. Comment
  POM1396  Schoenoplectus californicus I. M. Johnston 1918-9-3 2147 Orange Laguna Canyon (at the lakes) 107 Comment
  RSA357142  Schoenoplectus californicus Robert F. Thorne 1975-4-6 45579 Orange Head of Newport Bay. Comment
  RSA731914  Schoenoplectus californicus Fred M. Roberts, Sandy Leatherman 2007-11-27 6665 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
  POM1398  Schoenoplectus maritimus C. B. Bradshaw s.n. Orange Laguna region: alkali lake. Comment
  RSA21060  Scirpus acutus var. occidentalis Ramon Valverde 1938-8-4 9444 Orange Rancho Santa Ana, Santa Ana Canyon 122 Comment
  JEPS75310  Scirpus americanus L. M. Booth 1932-5-30 1134 Orange Newport Bay Comment
  IRVC29874  Scirpus cernuus Mark A. Elvin, D. Kelch 2006-12-9 5302 Orange Newport Backbay; Big Canyon, lower end. Southern Coastal 3 Comment
  UCR207546  Scirpus cernuus O. F. Clarke, Roger E. Reinke 2004-11-14 s.n. Orange South Coast, Newport Back Bay 3 Comment
  UCR174222  Scirpus microcarpus A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33022 Orange Peninsular Range; Santa Ana Mtns., San Juan Canyon, from Lower San Juan Picnic Area to c. 1 mile downstream, parallel to Hwy 74 and near Riverside Co. line 396 Comment
  UCSB48201  Scirpus microcarpus Roberts, Fred 1981-6-26 Orange Santa Ana Mtns.; San Juan Canyon; 0.1 km. N Lower San Juan Picnic Ground 390 Comment
  RSA749356  Scrophularia californica subsp. floribunda Fred M. Roberts 2008-4-22 6919 Orange Lomas de Santiago: Loma Ridge, Lower Hicks Cyn.,along Haul Rd. near asphalt plant, 2.2 km ENE Rattlesnake Reservoir dam and 2.2 km WNW Bee Peak, Irvine Ranch Conservancy. 188 Comment
  RSA82293  Scutellaria tuberosa F. W. Peirson 1923-3-25 3377 Orange Aliso Creek, near Laguna Beach. Near summit of a ridge about 200 ft. above the sea. 61 Comment
  RSA723967  Secale cereale R. E. Riefner 2004-5-1 04 -154 Orange City of Irvine; Jeffrey Rd. near Bryan Rd. 73 Comment
  UC284873  Selaginella asprella P. A. Munz 1923-9-7 7744 Orange Santiago Peak; Santa Ana Mts. 1706 Comment
  UC534961  Selaginella bigelovii John Thomas Howell 1927-7-22 2834 Orange Claymine Canyon; Santa Ana Mts. 182 Comment
  UCR270353  Selaginella bigelovii Dick Newell, Judy Booth 2016-1-17 418 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, North Main Divide Road, 1.87 miles SE of Los Pinos Peak 946 Comment
  OBI34978  Selaginella bigelovii John Thomas Howell 1927-7-22 2834 Orange Claymine Canyon, Santa Ana Mts., Orange County 183 Comment
  IRVC25398  Selaginella cinerascens Fred M. Roberts 1987-4-3 3339 Orange San Joaquin Hills; Irvine; central Shady Canyon, 2.9km NE Signal Hill. Central coastal 107 Comment
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Oct 17 2017
  POM272076  Senecio californicus Lyman Benson 1932-3-26 3199 Orange Dana Point. 60 Comment
  RSA17009  Senecio californicus P. C. Everett 1936-3-19 7732 Orange Santa Ana Botanic Garden. 183 Comment
  RSA650644  Senecio californicus D. E. Bramlet 2000-4-7 2948 Orange Upper Blind Canyon. The site is found beside the SCE maintenance road and 762m west of the mainstem of Blind Canyon. This locality is 1.7km east of Weir Canyon. 354 Comment
  UCR119294  Senecio californicus R. E. Riefner Jr. 2000-6-26 20- 583 Orange Santa Ana Mountains, North Ranch Policy Plan Area, along dirt road running N from Baker Canyon Road 305 Comment
  RSA0012719  Senecio californicus Helen D. Geis 537 Orange Santiago Canyon. Comment
  UCR247540  Senecio flaccidus var. douglasii Dick Newell, Judy Booth 2013-9-22 339 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, North Main Divide Road, 2.2 air miles due east of Los Pinos Peak 938 Comment
  RSA937  Senecio flaccidus var. douglasii J. T. Howell 1927-6-6 43 Orange Santa Ana River bottom, Rancho Santa Ana 152 Comment
  CAS-BOT-BC364600  Senecio vulgaris Ira L. Wiggins 1966-2-25 20478 Orange Firestone Boy Scout Reservation E of Brea Comment
  IRVC904  Senecio vulgaris D. Dixon 1965-3-25 Orange Silverado Canyon. Santa Ana Mountains 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
  UCD135863  Senecio vulgaris Ira L. Wiggins 1966-3-5 20503 Orange Roadside shoulder along Highway S-18, about 4.5 miles east of Laguna Beach. Comment
  IRVC25222  Sesuvium verrucosum Fred M. Roberts 1986-11-4 3213 Orange Anaheim Bay, north of Hog Island, Seal Beach Naval Weapons Station 0 Comment
  RSA4818  Sesuvium verrucosum James Snow 1932-1 s.n. Orange Bryant Ranch: Near Long Beach. Station # 4. Plant # 1. Comment
  RSA655602  Sesuvium verrucosum A. C. Sanders 2000-4-19 23334 Orange Bolsa Chica Lagoon, along dirt roads in oil field, east of Hwy 1, east of Bolsa Chica St. 0 Comment
  SEINET238939 Image available Sesuvium verrucosum A. C. Sanders, D. Malueg; K. D. Jones 2000-1 23334 Orange Pacific Coast: Bolsa Chica Lagoon, along dirt roads in oil field, east of Hwy 1, east of Bolsa Chica St. 0 Comment
  RSA724101  Setaria adhaerens R. E. Riefner 2006-8-6 6 -373 Orange City of Huntington Beach, Atlanta St. at Surge Ln. 11 Comment
  POM202735  Setaria parviflora L. M. Booth 1932-7-18 1264 Orange Costa Mesa, Newport Bay Comment
  POM50697  Setaria parviflora Le Roy Abrams s.n. Orange Diet bench near Santa Anar. Comment
  POM50701  Setaria parviflora H. Droege 1902-05 s.n. Orange Santa Ana Orange County Comment
  RSA159413  Setaria parviflora I. L. Wiggins, John H. Thomas 1962-6-27 309 Orange Orange County, weeds near intersection of 18th and Main Streets, Santa Ana 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
  UCD116756  Sidalcea neomexicana J. C. Elmore 1929-4-1 2168 Orange Santa Ana. Comment
  RSA0040089  Sidalcea neomexicana Sandra Leatherman 2014-3-18 2014 -1 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
  CAS-BOT-BC205744  Sidalcea neomexicana subsp. thurberi Carl B. Wolf 1936-5-25 7822 Orange East of Los Alamitos, at Northwest corner of Hansen Road & Bryant Ave. 15 Comment
  SEINET3155822  Silene W. B. Crockatt 1908-6-1 sn Orange Capistrano valley 76 Comment
  RSA539415  Silene antirrhina Fred M. Roberts, Carol A. Roberts 1988-6-9 4088 Orange Santa Ana Mountains: Main Divide Truck Trail, Modjeska Peak, south slope. 0.4km SW summit. 1518 Comment
  RSA680737  Silene antirrhina Scott D. White 2003-3-21 8819 Orange Santa Ana Mountain Foothills: Rancho Mission Viejo. East-facing slopes above an unnamed tributary to San Juan Creek. 122 Comment
  RSA749466  Silene gallica Fred M. Roberts 1999-4-22 5186 Orange Lomas de Santiago: tributary to Santiago Creek wash along spur road on ridge between Limestone Cyn. and Santiago Creek wash opposite Williams Cyn., 1.9 km SE Silverado Sch. and 2.2 km NNW Bolero Lookout. 395 Comment
  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-BC386897  Silene gallica Ira L. Wiggins 1966-4-30 20573 Orange field along south side of Brea Olinda Boulevard, near Carolina Avenue. Comment
  RSA797291  Silene gallica D. M. McF 1953-4-3 s.n. Orange Irvine Coast G.C. Corona Del Mar. Comment
  SD72733  Silene laciniata F. R. Fosberg 1931-6-2 S 5137 Orange Silverado Canyon, Santa Ana Mountains. Comment
  UCR16182  Silene laciniata Kenneth Hibberd 1966-5-8 660508- 2 Orange Santa Ana Mountains, Modjeska Canyon, 2 mi. north of the El Toro Road [S18] junction 396 Comment
  UCR76760  Silene laciniata Stu Hemstreet 1992-5-27 1958 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest. Along road (3S04) to Blue Jay Group Campground, off State Hwy 74 (Ortega Hwy), c. 2 mi. (airline) west of El Cariso Campground. 762 Comment
  RSA0054829  Silene laciniata Keith E. Hoffmaster 1934-7-15 110 Orange Santa Ana Mts. (Modjeska). Comment
  RSA438885  Silene laciniata subsp. major M. B. Dunkle 5377 Orange San Juan 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
  RSA708224  Silene lemmonii Fred M. Roberts, Robert L. Allen, Chris Barnhill, Nancy Hatfield 2005-5-30 6217 Orange Main Divide Road, ridge between Silverado and Bixby Canyons, coastal slope, 0.46km (air) S Bald Peak. 1203 Comment
  UC1178641  Silene lemmonii Peter Kamb 1948-6-19 1113 Orange se slope of Santiago Peak Santa Ana Mts., se slope of Santiago Peak (Santa Ana Mts., Orange-Riverside Counties) 1219 Comment
  POM196703  Sinapis alba E. Johnson 1930-3-1 s.n. Orange N of El Modeno Comment
  RSA4791  Sinapis arvensis James Snow s.n. Orange Plants of the Bryant Ranch, near Long Beach. Station # 3, Plant #5. Comment
  RSA653212  Sinapis arvensis David Barrios 1991-5-1 9 Orange Yorba Linda, 1500 ft. northwest of Fairmont Ave and Quail Circle. 365 Comment
  CAS-BOT-BC75037  Sisymbrium altissimum John Thomas Howell 1927-6-6 2448 Orange Santa Ana River bottom, Santa Ana Canyon. 152 Comment
  IRVC1172  Sisymbrium irio H. Ellis 1965-3-7 Orange Corona del Mar. Newport Beach Comment
  IRVC1183  Sisymbrium irio L. McCabe 1965-4-25 Orange Corona del Mar. Newport Beach Comment
  IRVC19418  Sisymbrium irio R. L. Allen 1983-2-12 A633 Orange Fullerton; Hillcrest Park, slope bordering E Valley View Drive. Southern Coastal Comment
  CAS-BOT-BC75289  Sisymbrium officinale Lawrence M. Booth 1932-1-1 1198 Orange Newport Bay. Comment
  HSC7000  Sisymbrium officinale S. M. Clapp 1966-4-7 28 Orange 3 mi. from Modjeska Canyon towards Silverado Canyon 152 Comment
  IRVC17042  Sisymbrium orientale R. Nesheim 1965-4-30 Orange Bayside Dr. Newport Beach Comment
  RSA304200  Sisyrinchium bellum James R. Shevock 1970-3-25 65 Orange Santa Ana Mountains. 366 Comment
  RSA731989  Sisyrinchium bellum A. C. Sanders, Fred M. Roberts 2008-4-8 34766 Orange Peninsular Range; Lomas de Santiago, Loma Ridge, SSE of Santiago Reservoir on Loma Ridge Spur Rd., above Dripping Springs Loop Rd 457 Comment
  SD236123  Sisyrinchium bellum A. C. Sanders, Fred M. Roberts, Amber ONeal, D. E. Bramlet 2008-5-9 35299 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, along old dirt road, c. 1.25 mi. ESE of Walnut Cyn Reservoir 340 Comment
  HSC13908  Sisyrinchium bellum J. J. Wagoner 1965-4-11 19 Orange 4 mi. N of Modjeska Canyon near Irvine Lake along the Irvine road 152 Comment
  POM9050  Sisyrinchium bellum Philip A. Munz, R. D. Harwood 1920-4-24 2751 Orange Sierra [Freemont] Canyon, Santa Ana Mountains. 366 Comment
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Sep 17 2011
  RSA651593  Sisyrinchium bellum D. Geisinger, R. Miller, E. Baldwin 1959-3-19 s.n. Orange Santa Ana Canyon Comment
  UC536954  Solanum americanum Lawrence M. Booth 1932-6-28 1213 Orange Bolsas Marsh Comment
  UCSB17923  Solanum americanum Gerhart, Janet 1963-2-22 Orange Trabuco Canyon, 1/2 miles above locked gate on dirt road, 17.5 miles east of U.S. Highway 101 at El Toro Marine Base 396 Comment
  RSA699756  Solanum douglasii Fred M. Roberts, David E. Bramlet 2003-6-6 5888 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, Cristianitos Cyn., 0.7km SW int. Cristianitos and TRW Rds. and 0.23km W of SDGandE substation. 94 Comment
  UCD126941  Solanum douglasii A. C. Sanders 1990-10-6 10198 Orange Newport Bay, North Star County Beach area on the SW end of the bay, ca. 2 km inland of Hwy 1. 1 Comment
  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
  UCR230228  Solanum douglasii Dick Newell, Don Millar 2011-3-15 081 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Agua Chinon Wash 219 Comment
  UCR237843  Solanum douglasii Mark A. Elvin 2003-2-2 2272 Orange South Coast, San Joaquin Marsh, UCI campus SSE of intersection of Jamboree Blvd. and Campus Dr. 2 Comment
  RSA422440  Solanum douglasii Claire Kibbe 1936-07 19966 Orange Santa Ana Canyon. Comment
  UCR136650  Solanum nigrum F. W. Peirson 1924-2-9 4523 Orange South Coast, between Wintersburg and the sea 9 Comment
  UCR186139  Solanum nigrum T. B. Salvato, Katie Kurtz 2006-10-15 1919 Orange South Coast, Irvine, San Diego Creek flood control channel, near Michelson Drive and Harvard Avenue 6 Comment
  CAS-BOT-BC156709  Solanum umbelliferum P. A. Munz; L. T. Street; Williams 1919-5-3 2650 Orange Santa Ana River [Canon] Canyon Comment
  POM212279  Solanum umbelliferum Carl B. Wolf 1931-3-6 1850 Orange 0.5 mi. below Trabuco Camp Ground, Trabuco Canyon, west slope of the Santa Ana Mts. 610 Comment
  RSA2079  Solanum umbelliferum Carl B. Wolf 1931-3-6 1850 Orange Trabuco Canyon, 1.5 mile below Trabuco Camp Grounds, west slope of Santa Ana Mountains. 610 Comment
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Oct 25 2007
  RSA5287  Solanum umbelliferum Carl B. Wolf 1932-12-19 4444 Orange Main divide of Santa Ana Mts. between Sierra Peak and Skyline Drive. 762 Comment
  RSA587879  Solanum umbelliferum Fred M. Roberts 1990-5-8 4622 Orange Chino Hills: Soquel Canyon, c.a. 1.4 km N Gilman Peak. 335 Comment
  RSA731988  Solanum umbelliferum A. C. Sanders, Fred M. Roberts 2008-4-8 34780 Orange Peninsular Range: Lomas de Santiago, SSE os f Santiago Reservoir on Harding Truck Trail at Dripping Springs Loop, above Limestone Canyon. 475 Comment
  UCR230236  Solanum umbelliferum Dick Newell, Don Millar 2011-3-15 089 Orange Peninsular Range; Santa Ana Mtns., MWD Road, east of Outdoor Education Center, 1.8 miles NW (312 deg. ) of Irvine Lake dam 239 Comment
  RSA0020579  Solanum umbelliferum P. Shirokawa 1998-5-15 41 Orange Cleveland National Forest- Trabuco Ranger District, 2.3 miles from Ortega Highway (State Highway 74) on North Main Divide Road 960 Comment
  UCSB18243  Solanum umbelliferum Daniel, Dick 1964-3-28 Orange Silverado Canyon Road, 5.1 miles NW from junction with Santiago Canyon Road, approximately 10 miles W of Irvine Lake, 17 miles by air E of Orange 365 Comment
  UCR97816  Solanum xanti Scott D. White 1997-3-28 4831 Orange Santa Ana Mountains, Above Modjeska Canyon, proposed water tank site. 488 Comment
  SEINET12274872  Solanum xanti J. F. Bright, Wyman, C. 1933-1 8094 Orange in Santa Ana foothills Comment
  IRVC21389  Solidago californica A. S. Boughey 1968-7-9 409 Orange Santa Ana mtns: upper Santiago Canyon. Peninsular Ranges Comment
  UCR193846  Solidago californica A. C. Sanders, Fred M. Roberts 2008-7-16 35853 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, upper Hangmans Tree Canyon 395 Comment
  SEINET3119095 Image available Solidago confinis L. M. Booth 1932-12-26 1383 Orange Newport Lagoon Comment
  UC284867  Solidago velutina subsp. californica P. A. Munz 1923-9-7 7747 Orange Santiago Peak , Santiago Peak (Santa Ana Mts.) 1645 Comment
  POM201703  Sonchus asper L. M. Booth 1932-7-19 1270 Orange Bolsas Marsh. Comment
  RSA0127412  Sonchus asper Fred M. Roberts 2016-3-17 8007 Orange San Joaquin Hills: City of Irvine, Bommer Canyon, east fork, 0.3 km ESE Cattle Camp near East Fork Trail. 152 Comment
  RSA793260  Sonchus oleraceus R. F. Thorne 1984-1 s.n. Orange Newport Back Bay 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
  RSA699060  Sparganium eurycarpum J. Russell Bruff 1932-4-14 s.n. Orange Drainage Ditch, Greenville. So of Santa Ana. Comment
  CAS-BOT-BC235381  Spartina foliosa Peter H. Raven 1957-9-28 11379 Orange North limits of Surfside 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
  OBI22235  Spartina foliosa Peter H. Raven 1957-9-28 11379 Orange N limits of Surfside Comment
  RSA234494  Spartina foliosa James Henrickson 1970-7-24 5024 Orange 2.5 miles NW of Huntington Beach along south channel of Inner Bolsa Bay, adj. top Pacific Coast Hwy in bolsa Chica Salt Marsh Comment
  SBBG57103  Spartina foliosa F. M. Reed 1927-11-25 5676 Orange Anaheim Landing Comment
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May 1 2011
  SD80955  Spartina foliosa James Henrickson 1970-7-24 5024 Orange 2I(c) miles NW of Huntington Beach along south channel of Inner Bolsa bay, adjacent to Pacific Coast Hy. in Bolsa Chica Salt Marsh Comment
  UC1111637  Spartina foliosa Peter H. Raven 1957-9-28 11379 Orange n limits Surfside Comment
  UCD92994  Spartina foliosa Peter H. Raven 1957-9-28 11379 Orange north limits of Surfside. Comment
  UCR107849  Spergula arvensis Scott D. White, B. Leatherman 1998-1-26 6065 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
  RSA801710  Spergula arvensis D. M. McF 1953-4-3 s.n. Orange Irvine Coast G.C. Corona Del Mar. Comment
  UCR157693  Spergularia Adrian Wolf 1998-5-15 277 Orange South Coast, Lambert Reservoir, north of El Toro Marine Corps Air Station 134 Comment
  SD227786  Spergularia bocconi Scott D. White, Brian Leatherman 1997-6-12 5339 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. 45 Comment
  SBBG69996  Spergularia macrotheca M. N. Ackley -May-1926 77 Orange Sunset Beach 8 Comment
  RSA0098513  Spergularia marina Fred M. Roberts, Sandy Leatherman 2007-11-27 6693 Orange Yorba Linda: drainage channel on east side of Amberdale Dr. ca. 0.3 km S Fairmont Blvd. 118 Comment
  UCR180302  Spergularia marina Scott D. White 1998-6-26 6780 Orange Irvine, University of California, Irvine campus: low-lying seasonal wetland along mapped intermittent 'blueline' stream just north of Bonita Canyon Drive 70 Comment
  RSA0097293  Spergularia salina Keith E. Hoffmaster 1935-2-17 842 Orange Prob[ably] near Costa Mesa, at bluff by Santa Ana River. Comment
  UCD63552  Sphaeralcea ambigua var. rosacea D. Sanchez-Mata 2006-7-1 s.n. Orange Laguna Niguel. Dana Point Highlands. Pacific Island Drive. 70 Comment
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Mar 23 2010
  CAS-BOT-BC236656  Sporobolus airoides Carl B. Wolf 1936-4-22 7771 Orange East of Los Alamitos, along Hansen Road, 100 yds. north of Cerritos Ave. 15 Comment
  CDA14320  Sporobolus indicus F. Covely 1998-8-3 s.n. Orange South Coast; Vampus of Huntington Beach U.H.S.D., 525 Yorktown Ave., Huntington Beach. 0 Comment
  CDA18985  Sporobolus indicus M. Salsona 2000-8-8 PDR 1223093 Orange Growing in turf at Heritage School, Santa Ana. 0 Comment
  RSA780827  Stachys ajugoides var. rigida Sandy Leatherman 2011-5-16 2011 -16 Orange Peninsular Ranges; Chino-Puente Hills region: 50 meters west of Carbon Canyon Road and Lions Canyon Road in Carbon Canyon in the City of Brea. 273 Comment
  RSA562760  Stachys rigida subsp. quercetorum Steve Boyd, T. S. Ross 1992-5-19 7436 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of the wilderness in Lucas Canyon from crossing the creek by Lucas Canyon Trail, downstream to confluence with Aliso Canyon. 274 Comment
  RSA452250  Stanleya pinnata Claire Kibbe 1936-07 19961 Orange Santa Ana Canyon. Comment
  IRVC370  Stellaria media I. L. Wiggins 1965-6-5 20329 Orange north side of Chapman Ave. near Kraemer Rd.; orange grove, common to very abundant beneath trees, full sun to partial shade. Placentia Comment
  UCR222383  Stellaria media Mark A. Elvin 2003-1-26 2238 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-BC393819  Stellaria media Ira L. Wiggins 1966-3-1 20484 Orange Corner of South Campus Drive and State College Blvd., Fullerton Comment
  CAS-BOT-BC393820  Stellaria media Ira L. Wiggins 1965-12-5 20368 Orange 2 mi. E of Atwood, on N side of Orangethorpe Ave. Comment
  SEINET10753606  Stenotaphrum secundatum Scott D. White, M. Carlton 2003-11-20 White 9867 Orange Santa Ana Mountain foothills: San Juan Creek in San Juan Capistrano. (Dana Point. T8S R7W S7). 24 Comment
  UCR177707  Stephanomeria diegensis Fred M. Roberts, D. E. Bramlet 2004-11-5 6128 Orange Rancho Mission Viejo; Donna O'Neill Land Conservancy, west slopes of Cristianitos Canyon, 0.79 km N Sycamore Gate and 0.18 km W Cristianitos Road 146 Comment
  UCR210050  Stephanomeria diegensis A. C. Sanders, Fred M. Roberts, Jutta Burger 2009-10-21 37198 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Limestone Canyon, west of Limestone Canyon Rd. 366 Comment
  RSA232212  Stephanomeria diegensis James Henrickson 1970-8-22 s.n. Orange 2.5 miles NNW of Huntington Beach. 0 Comment
  UC1394144  Stephanomeria diegensis L. D. Gottlieb 1968-8-14 6860 Orange immediately w Lower San Juan Campground (on Route 74) 411 Comment
  CAS-BOT-BC375866  Stephanomeria virgata Joseph Andorfer Ewan 1932-7-28 7706 Orange Seaward bluffs at Corona del Mar Comment
  UC472148  Stephanomeria virgata subsp. virgata J. Ewan 1931-10-3 5229 Orange between Brea and Olinda Comment
  UCR210366  Stephanomeria virgata subsp. virgata T. B. Salvato, Billy Deane 2006-10-16 1944 Orange South Coast, Irvine, San Diego Creek flood control channel, between Michelson Drive and the 405 FWY 12 Comment
  UCR177439  Stipa cernua Scott D. White, Amanda Duchardt 2003-3-27 8864 Orange Peninsular Ranges/Santa Ana Mtns, Canyon bottom and W-facing slopes above Canada Gobernadora 183 Comment
  SD95151  Stipa coronata Jack L. Reveal 1975-7-18 1764 Orange Occasional among boulders at upper edge of riparian zone, Trabuco Canyon. 550 Comment
  UCR192090  Stipa lepida A. C. Sanders, Fred M. Roberts 2008-5-6 35264 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, slope SE of road junction along ridge road, near head of Agua Chinon Canyon, 2.4 miles north of El Toro 470 Comment
  UCR281508  Stipa lepida Mitch Provance, Jeremiah George 2017-3-20 317- 102 Orange West Coyote Hills, Fullerton, vicinity of Utility Access Road W of Gilbert Street and N of Rosecrans Ave., on land previously occupied by oil fields. 131 Comment
  HSC79001  Stipa pulchra Steve Boyd 1981-5-13 Orange Pelican Hill, Irvine Ranch property in the San Joaquin Hills S of Corona del Mar Comment
  IRVC27015  Strumaria truncata A. C. Sanders, Mark A. Elvin 2003-11-9 27357 Orange Irvine: UCI Arboretum, UCI campus near intersection of Jamboree Blvd. and Campus Dr. Southern Coastal 15 Comment
  RSA683168  Stylocline gnaphaloides Scott D. White, Amanda Duchardt 2003-4-10 9019 Orange Santa Ana Mountain Foothills: Ridges & east-facing canyons above Trampas Canyon. 122 Comment
  UCR238205  Stylocline gnaphaloides Mark A. Elvin 2003-3-30 2391 Orange South Coast, north side of UC Irvine Preserve, between core of UCI campus (E Peltason Dr.) and Hwy 73 69 Comment
  CAS-BOT-BC422882  Stylomecon heterophylla P. A. Munz 1918-5-4 2171 Orange Laguna Beach Region. Laguna Canon [Canyon] Comment
  CAS-BOT-BC48096  Styrax redivivus C. B. Wolf; B. D. Stark 1932-12-19 10014 Orange Main divide of Santa Ana Mts., between Sierra Peak & Skyline Drive. 914 Comment
  RSA753416  Styrax redivivus Eleanor Carter 1998-5-25 s.n. Orange At the summit of Sitton Peak, just N of San Mateo Wilderness. 998 Comment
  UC2042142  Styrax redivivus R. F. Thorne with 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. Comment
  POM259534  Suaeda calceoliformis A. C. Keller 1938-7-29 s.n. Orange At entrance to Lido Isle, Newport Comment
  RSA5854  Suaeda calceoliformis C. B. Wolf 1932-6-28 3789 Orange Bryant Ranch, near fence., 100 ft. south of NW corner of NW 1/4 of S.E. 1/4 of sect 27. 9 Comment
  RSA758776  Suaeda esteroa Anstruther Davidson 1914-10-1 2989 Orange Newport 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
  CAS-BOT-BC110409  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
  JEPS59882  Suaeda taxifolia Lawrence M. Booth 1932-8-5 1364 Orange Newport Bay Comment
  RSA438591  Suaeda taxifolia E. A. Purer 1932-03 15767 Orange Coast Highway at Hu